Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (170 commits)
  [SCSI] scsi_dh_rdac: Add MD36xxf into device list
  [SCSI] scsi_debug: add consecutive medium errors
  [SCSI] libsas: fix ata list corruption issue
  [SCSI] hpsa: export resettable host attribute
  [SCSI] hpsa: move device attributes to avoid forward declarations
  [SCSI] scsi_debug: Logical Block Provisioning (SBC3r26)
  [SCSI] sd: Logical Block Provisioning update
  [SCSI] Include protection operation in SCSI command trace
  [SCSI] hpsa: fix incorrect PCI IDs and add two new ones (2nd try)
  [SCSI] target: Fix volume size misreporting for volumes > 2TB
  [SCSI] bnx2fc: Broadcom FCoE offload driver
  [SCSI] fcoe: fix broken fcoe interface reset
  [SCSI] fcoe: precedence bug in fcoe_filter_frames()
  [SCSI] libfcoe: Remove stale fcoe-netdev entries
  [SCSI] libfcoe: Move FCOE_MTU definition from fcoe.h to libfcoe.h
  [SCSI] libfc: introduce __fc_fill_fc_hdr that accepts fc_hdr as an argument
  [SCSI] fcoe, libfc: initialize EM anchors list and then update npiv EMs
  [SCSI] Revert "[SCSI] libfc: fix exchange being deleted when the abort itself is timed out"
  [SCSI] libfc: Fixing a memory leak when destroying an interface
  [SCSI] megaraid_sas: Version and Changelog update
  ...

Fix up trivial conflicts due to whitespace differences in
drivers/scsi/libsas/{sas_ata.c,sas_scsi_host.c}

Documentation/scsi/ChangeLog.megaraid_sas

@@ -1,3 +1,26 @@
+Release Date    : Thu. Feb 24, 2011 17:00:00 PST 2010 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Adam Radford
+Current Version : 00.00.05.34-rc1
+Old Version     : 00.00.05.29-rc1
+    1. Fix some failure gotos from megasas_probe_one(), etc.
+    2. Add missing check_and_restore_queue_depth() call in
+       complete_cmd_fusion().
+    3. Enable MSI-X before calling megasas_init_fw().
+    4. Call tasklet_schedule() even if outbound_intr_status == 0 for MFI based
+       boards in MSI-X mode.
+    5. Fix megasas_probe_one() to clear PCI_MSIX_FLAGS_ENABLE in msi control
+       register in kdump kernel.
+    6. Fix megasas_get_cmd() to only print "Command pool empty" if
+       megasas_dbg_lvl is set.
+    7. Fix megasas_build_dcdb_fusion() to not filter by TYPE_DISK.
+    8. Fix megasas_build_dcdb_fusion() to use io_request->LUN[1] field.
+    9. Add MR_EVT_CFG_CLEARED to megasas_aen_polling().
+    10. Fix tasklet_init() in megasas_init_fw() to use instancet->tasklet.
+    11. Fix fault state handling in megasas_transition_to_ready().
+    12. Fix max_sectors setting for IEEE SGL's.
+    13. Fix iMR OCR support to work correctly.
+-------------------------------------------------------------------------------
 Release Date    : Tues.  Dec 14, 2010 17:00:00 PST 2010 -
 			(emaild-id:megaraidlinux@lsi.com)
 			Adam Radford

Documentation/scsi/hpsa.txt

@@ -28,6 +28,12 @@ boot parameter "hpsa_allow_any=1" is specified, however these are not tested
 nor supported by HP with this driver.  For older Smart Arrays, the cciss
 driver should still be used.
 
+The "hpsa_simple_mode=1" boot parameter may be used to prevent the driver from
+putting the controller into "performant" mode.  The difference is that with simple
+mode, each command completion requires an interrupt, while with "performant mode"
+(the default, and ordinarily better performing) it is possible to have multiple
+command completions indicated by a single interrupt.
+
 HPSA specific entries in /sys
 -----------------------------
 
@@ -39,6 +45,8 @@ HPSA specific entries in /sys
 
   /sys/class/scsi_host/host*/rescan
   /sys/class/scsi_host/host*/firmware_revision
+  /sys/class/scsi_host/host*/resettable
+  /sys/class/scsi_host/host*/transport_mode
 
   the host "rescan" attribute is a write only attribute.  Writing to this
   attribute will cause the driver to scan for new, changed, or removed devices
@@ -55,6 +63,21 @@ HPSA specific entries in /sys
 	root@host:/sys/class/scsi_host/host4# cat firmware_revision
 	7.14
 
+  The transport_mode indicates whether the controller is in "performant"
+  or "simple" mode.  This is controlled by the "hpsa_simple_mode" module
+  parameter.
+
+  The "resettable" read-only attribute indicates whether a particular
+  controller is able to honor the "reset_devices" kernel parameter.  If the
+  device is resettable, this file will contain a "1", otherwise, a "0".  This
+  parameter is used by kdump, for example, to reset the controller at driver
+  load time to eliminate any outstanding commands on the controller and get the
+  controller into a known state so that the kdump initiated i/o will work right
+  and not be disrupted in any way by stale commands or other stale state
+  remaining on the controller from the previous kernel.  This attribute enables
+  kexec tools to warn the user if they attempt to designate a device which is
+  unable to honor the reset_devices kernel parameter as a dump device.
+
   HPSA specific disk attributes:
   ------------------------------
 

Documentation/scsi/scsi_mid_low_api.txt

@@ -1343,7 +1343,7 @@ Members of interest:
                    underruns (overruns should be rare). If possible an LLD
                    should set 'resid' prior to invoking 'done'. The most
                    interesting case is data transfers from a SCSI target
-                   device device (i.e. READs) that underrun. 
+                   device (e.g. READs) that underrun.
     underflow    - LLD should place (DID_ERROR << 16) in 'result' if
                    actual number of bytes transferred is less than this
                    figure. Not many LLDs implement this check and some that
@@ -1351,6 +1351,18 @@ Members of interest:
                    report a DID_ERROR. Better for an LLD to implement
                    'resid'.
 
+It is recommended that a LLD set 'resid' on data transfers from a SCSI
+target device (e.g. READs). It is especially important that 'resid' is set
+when such data transfers have sense keys of MEDIUM ERROR and HARDWARE ERROR
+(and possibly RECOVERED ERROR). In these cases if a LLD is in doubt how much
+data has been received then the safest approach is to indicate no bytes have
+been received. For example: to indicate that no valid data has been received
+a LLD might use these helpers:
+    scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
+where 'SCpnt' is a pointer to a scsi_cmnd object. To indicate only three 512
+bytes blocks has been received 'resid' could be set like this:
+    scsi_set_resid(SCpnt, scsi_bufflen(SCpnt) - (3 * 512));
+
 The scsi_cmnd structure is defined in include/scsi/scsi_cmnd.h
 
 

MAINTAINERS

@@ -5359,8 +5359,7 @@ S:	Supported
 F:	drivers/s390/crypto/
 
 S390 ZFCP DRIVER
-M:	Christof Schmitt <christof.schmitt@de.ibm.com>
-M:	Swen Schillig <swen@vnet.ibm.com>
+M:	Steffen Maier <maier@linux.vnet.ibm.com>
 M:	linux390@de.ibm.com
 L:	linux-s390@vger.kernel.org
 W:	http://www.ibm.com/developerworks/linux/linux390/

block/blk-core.c

@@ -2045,9 +2045,26 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
 
 	if (error && req->cmd_type == REQ_TYPE_FS &&
 	    !(req->cmd_flags & REQ_QUIET)) {
-		printk(KERN_ERR "end_request: I/O error, dev %s, sector %llu\n",
-				req->rq_disk ? req->rq_disk->disk_name : "?",
-				(unsigned long long)blk_rq_pos(req));
+		char *error_type;
+
+		switch (error) {
+		case -ENOLINK:
+			error_type = "recoverable transport";
+			break;
+		case -EREMOTEIO:
+			error_type = "critical target";
+			break;
+		case -EBADE:
+			error_type = "critical nexus";
+			break;
+		case -EIO:
+		default:
+			error_type = "I/O";
+			break;
+		}
+		printk(KERN_ERR "end_request: %s error, dev %s, sector %llu\n",
+		       error_type, req->rq_disk ? req->rq_disk->disk_name : "?",
+		       (unsigned long long)blk_rq_pos(req));
 	}
 
 	blk_account_io_completion(req, nr_bytes);

drivers/infiniband/ulp/iser/iscsi_iser.c

@@ -532,6 +532,29 @@ iscsi_iser_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *s
 	stats->custom[3].value = conn->fmr_unalign_cnt;
 }
 
+static int iscsi_iser_get_ep_param(struct iscsi_endpoint *ep,
+				   enum iscsi_param param, char *buf)
+{
+	struct iser_conn *ib_conn = ep->dd_data;
+	int len;
+
+	switch (param) {
+	case ISCSI_PARAM_CONN_PORT:
+	case ISCSI_PARAM_CONN_ADDRESS:
+		if (!ib_conn || !ib_conn->cma_id)
+			return -ENOTCONN;
+
+		return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+					&ib_conn->cma_id->route.addr.dst_addr,
+					param, buf);
+		break;
+	default:
+		return -ENOSYS;
+	}
+
+	return len;
+}
+
 static struct iscsi_endpoint *
 iscsi_iser_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 		      int non_blocking)
@@ -637,6 +660,8 @@ static struct iscsi_transport iscsi_iser_transport = {
 				  ISCSI_MAX_BURST |
 				  ISCSI_PDU_INORDER_EN |
 				  ISCSI_DATASEQ_INORDER_EN |
+				  ISCSI_CONN_PORT |
+				  ISCSI_CONN_ADDRESS |
 				  ISCSI_EXP_STATSN |
 				  ISCSI_PERSISTENT_PORT |
 				  ISCSI_PERSISTENT_ADDRESS |
@@ -659,6 +684,7 @@ static struct iscsi_transport iscsi_iser_transport = {
 	.destroy_conn           = iscsi_iser_conn_destroy,
 	.set_param              = iscsi_iser_set_param,
 	.get_conn_param		= iscsi_conn_get_param,
+	.get_ep_param		= iscsi_iser_get_ep_param,
 	.get_session_param	= iscsi_session_get_param,
 	.start_conn             = iscsi_iser_conn_start,
 	.stop_conn              = iscsi_iser_conn_stop,

drivers/md/dm-mpath.c

@@ -1283,24 +1283,22 @@ static int do_end_io(struct multipath *m, struct request *clone,
 	if (!error && !clone->errors)
 		return 0;	/* I/O complete */
 
-	if (error == -EOPNOTSUPP)
-		return error;
-
-	if (clone->cmd_flags & REQ_DISCARD)
-		/*
-		 * Pass all discard request failures up.
-		 * FIXME: only fail_path if the discard failed due to a
-		 * transport problem.  This requires precise understanding
-		 * of the underlying failure (e.g. the SCSI sense).
-		 */
+	if (error == -EOPNOTSUPP || error == -EREMOTEIO)
 		return error;
 
 	if (mpio->pgpath)
 		fail_path(mpio->pgpath);
 
 	spin_lock_irqsave(&m->lock, flags);
-	if (!m->nr_valid_paths && !m->queue_if_no_path && !__must_push_back(m))
-		r = -EIO;
+	if (!m->nr_valid_paths) {
+		if (!m->queue_if_no_path) {
+			if (!__must_push_back(m))
+				r = -EIO;
+		} else {
+			if (error == -EBADE)
+				r = error;
+		}
+	}
 	spin_unlock_irqrestore(&m->lock, flags);
 
 	return r;

drivers/message/fusion/lsi/mpi_cnfg.h

@@ -2593,6 +2593,7 @@ typedef struct _CONFIG_PAGE_SAS_IO_UNIT_0
 #define MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE              (0x03)
 #define MPI_SAS_IOUNIT0_RATE_1_5                            (0x08)
 #define MPI_SAS_IOUNIT0_RATE_3_0                            (0x09)
+#define MPI_SAS_IOUNIT0_RATE_6_0                            (0x0A)
 
 /* see mpi_sas.h for values for SAS IO Unit Page 0 ControllerPhyDeviceInfo values */
 

drivers/message/fusion/lsi/mpi_ioc.h

@@ -841,6 +841,7 @@ typedef struct _EVENT_DATA_SAS_PHY_LINK_STATUS
 #define MPI_EVENT_SAS_PLS_LR_RATE_SATA_OOB_COMPLETE         (0x03)
 #define MPI_EVENT_SAS_PLS_LR_RATE_1_5                       (0x08)
 #define MPI_EVENT_SAS_PLS_LR_RATE_3_0                       (0x09)
+#define MPI_EVENT_SAS_PLS_LR_RATE_6_0                       (0x0A)
 
 /* SAS Discovery Event data */
 

drivers/message/fusion/mptbase.c

@@ -7418,7 +7418,12 @@ mpt_display_event_info(MPT_ADAPTER *ioc, EventNotificationReply_t *pEventReply)
 		case MPI_EVENT_SAS_PLS_LR_RATE_3_0:
 			snprintf(evStr, EVENT_DESCR_STR_SZ,
 			   "SAS PHY Link Status: Phy=%d:"
-			   " Rate 3.0 Gpbs",PhyNumber);
+			   " Rate 3.0 Gbps", PhyNumber);
+			break;
+		case MPI_EVENT_SAS_PLS_LR_RATE_6_0:
+			snprintf(evStr, EVENT_DESCR_STR_SZ,
+			   "SAS PHY Link Status: Phy=%d:"
+			   " Rate 6.0 Gbps", PhyNumber);
 			break;
 		default:
 			snprintf(evStr, EVENT_DESCR_STR_SZ,

drivers/message/fusion/mptctl.c

@@ -1314,8 +1314,10 @@ mptctl_getiocinfo (unsigned long arg, unsigned int data_size)
 	else
 		karg->adapterType = MPT_IOCTL_INTERFACE_SCSI;
 
-	if (karg->hdr.port > 1)
+	if (karg->hdr.port > 1) {
+		kfree(karg);
 		return -EINVAL;
+	}
 	port = karg->hdr.port;
 
 	karg->port = port;

drivers/message/fusion/mptsas.c

@@ -1973,7 +1973,6 @@ static struct scsi_host_template mptsas_driver_template = {
 	.change_queue_depth 		= mptscsih_change_queue_depth,
 	.eh_abort_handler		= mptscsih_abort,
 	.eh_device_reset_handler	= mptscsih_dev_reset,
-	.eh_bus_reset_handler		= mptscsih_bus_reset,
 	.eh_host_reset_handler		= mptscsih_host_reset,
 	.bios_param			= mptscsih_bios_param,
 	.can_queue			= MPT_SAS_CAN_QUEUE,
@@ -3063,6 +3062,9 @@ static int mptsas_probe_one_phy(struct device *dev,
 	case MPI_SAS_IOUNIT0_RATE_3_0:
 		phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
 		break;
+	case MPI_SAS_IOUNIT0_RATE_6_0:
+		phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
+		break;
 	case MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE:
 	case MPI_SAS_IOUNIT0_RATE_UNKNOWN:
 	default:
@@ -3691,7 +3693,8 @@ mptsas_send_link_status_event(struct fw_event_work *fw_event)
 	}
 
 	if (link_rate == MPI_SAS_IOUNIT0_RATE_1_5 ||
-	    link_rate == MPI_SAS_IOUNIT0_RATE_3_0) {
+	    link_rate == MPI_SAS_IOUNIT0_RATE_3_0 ||
+	    link_rate == MPI_SAS_IOUNIT0_RATE_6_0) {
 
 		if (!port_info) {
 			if (ioc->old_sas_discovery_protocal) {

drivers/net/bnx2x/bnx2x_main.c

@@ -145,13 +145,6 @@ static struct {
 	{ "Broadcom NetXtreme II BCM57712E XGb" }
 };
 
-#ifndef PCI_DEVICE_ID_NX2_57712
-#define PCI_DEVICE_ID_NX2_57712		0x1662
-#endif
-#ifndef PCI_DEVICE_ID_NX2_57712E
-#define PCI_DEVICE_ID_NX2_57712E	0x1663
-#endif
-
 static DEFINE_PCI_DEVICE_TABLE(bnx2x_pci_tbl) = {
 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57710), BCM57710 },
 	{ PCI_VDEVICE(BROADCOM, PCI_DEVICE_ID_NX2_57711), BCM57711 },

drivers/s390/scsi/zfcp_aux.c

@@ -122,36 +122,21 @@ static int __init zfcp_module_init(void)
 {
 	int retval = -ENOMEM;
 
-	zfcp_data.gpn_ft_cache = zfcp_cache_hw_align("zfcp_gpn",
-					sizeof(struct zfcp_fc_gpn_ft_req));
-	if (!zfcp_data.gpn_ft_cache)
-		goto out;
-
-	zfcp_data.qtcb_cache = zfcp_cache_hw_align("zfcp_qtcb",
-					sizeof(struct fsf_qtcb));
-	if (!zfcp_data.qtcb_cache)
+	zfcp_fsf_qtcb_cache = zfcp_cache_hw_align("zfcp_fsf_qtcb",
+						  sizeof(struct fsf_qtcb));
+	if (!zfcp_fsf_qtcb_cache)
 		goto out_qtcb_cache;
 
-	zfcp_data.sr_buffer_cache = zfcp_cache_hw_align("zfcp_sr",
-					sizeof(struct fsf_status_read_buffer));
-	if (!zfcp_data.sr_buffer_cache)
-		goto out_sr_cache;
+	zfcp_fc_req_cache = zfcp_cache_hw_align("zfcp_fc_req",
+						sizeof(struct zfcp_fc_req));
+	if (!zfcp_fc_req_cache)
+		goto out_fc_cache;
 
-	zfcp_data.gid_pn_cache = zfcp_cache_hw_align("zfcp_gid",
-					sizeof(struct zfcp_fc_gid_pn));
-	if (!zfcp_data.gid_pn_cache)
-		goto out_gid_cache;
-
-	zfcp_data.adisc_cache = zfcp_cache_hw_align("zfcp_adisc",
-					sizeof(struct zfcp_fc_els_adisc));
-	if (!zfcp_data.adisc_cache)
-		goto out_adisc_cache;
-
-	zfcp_data.scsi_transport_template =
+	zfcp_scsi_transport_template =
 		fc_attach_transport(&zfcp_transport_functions);
-	if (!zfcp_data.scsi_transport_template)
+	if (!zfcp_scsi_transport_template)
 		goto out_transport;
-	scsi_transport_reserve_device(zfcp_data.scsi_transport_template,
+	scsi_transport_reserve_device(zfcp_scsi_transport_template,
 				      sizeof(struct zfcp_scsi_dev));
 
 
@@ -175,18 +160,12 @@ static int __init zfcp_module_init(void)
 out_ccw_register:
 	misc_deregister(&zfcp_cfdc_misc);
 out_misc:
-	fc_release_transport(zfcp_data.scsi_transport_template);
+	fc_release_transport(zfcp_scsi_transport_template);
 out_transport:
-	kmem_cache_destroy(zfcp_data.adisc_cache);
-out_adisc_cache:
-	kmem_cache_destroy(zfcp_data.gid_pn_cache);
-out_gid_cache:
-	kmem_cache_destroy(zfcp_data.sr_buffer_cache);
-out_sr_cache:
-	kmem_cache_destroy(zfcp_data.qtcb_cache);
+	kmem_cache_destroy(zfcp_fc_req_cache);
+out_fc_cache:
+	kmem_cache_destroy(zfcp_fsf_qtcb_cache);
 out_qtcb_cache:
-	kmem_cache_destroy(zfcp_data.gpn_ft_cache);
-out:
 	return retval;
 }
 
@@ -196,12 +175,9 @@ static void __exit zfcp_module_exit(void)
 {
 	ccw_driver_unregister(&zfcp_ccw_driver);
 	misc_deregister(&zfcp_cfdc_misc);
-	fc_release_transport(zfcp_data.scsi_transport_template);
-	kmem_cache_destroy(zfcp_data.adisc_cache);
-	kmem_cache_destroy(zfcp_data.gid_pn_cache);
-	kmem_cache_destroy(zfcp_data.sr_buffer_cache);
-	kmem_cache_destroy(zfcp_data.qtcb_cache);
-	kmem_cache_destroy(zfcp_data.gpn_ft_cache);
+	fc_release_transport(zfcp_scsi_transport_template);
+	kmem_cache_destroy(zfcp_fc_req_cache);
+	kmem_cache_destroy(zfcp_fsf_qtcb_cache);
 }
 
 module_exit(zfcp_module_exit);
@@ -260,18 +236,18 @@ static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
 		return -ENOMEM;
 
 	adapter->pool.qtcb_pool =
-		mempool_create_slab_pool(4, zfcp_data.qtcb_cache);
+		mempool_create_slab_pool(4, zfcp_fsf_qtcb_cache);
 	if (!adapter->pool.qtcb_pool)
 		return -ENOMEM;
 
-	adapter->pool.status_read_data =
-		mempool_create_slab_pool(FSF_STATUS_READS_RECOM,
-					 zfcp_data.sr_buffer_cache);
-	if (!adapter->pool.status_read_data)
+	BUILD_BUG_ON(sizeof(struct fsf_status_read_buffer) > PAGE_SIZE);
+	adapter->pool.sr_data =
+		mempool_create_page_pool(FSF_STATUS_READS_RECOM, 0);
+	if (!adapter->pool.sr_data)
 		return -ENOMEM;
 
 	adapter->pool.gid_pn =
-		mempool_create_slab_pool(1, zfcp_data.gid_pn_cache);
+		mempool_create_slab_pool(1, zfcp_fc_req_cache);
 	if (!adapter->pool.gid_pn)
 		return -ENOMEM;
 
@@ -290,8 +266,8 @@ static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
 		mempool_destroy(adapter->pool.qtcb_pool);
 	if (adapter->pool.status_read_req)
 		mempool_destroy(adapter->pool.status_read_req);
-	if (adapter->pool.status_read_data)
-		mempool_destroy(adapter->pool.status_read_data);
+	if (adapter->pool.sr_data)
+		mempool_destroy(adapter->pool.sr_data);
 	if (adapter->pool.gid_pn)
 		mempool_destroy(adapter->pool.gid_pn);
 }
@@ -386,6 +362,7 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 
 	INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);
 	INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports);
+	INIT_WORK(&adapter->ns_up_work, zfcp_fc_sym_name_update);
 
 	if (zfcp_qdio_setup(adapter))
 		goto failed;
@@ -437,7 +414,7 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 	adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN;
 	adapter->ccw_device->dev.dma_parms = &adapter->dma_parms;
 
-	if (!zfcp_adapter_scsi_register(adapter))
+	if (!zfcp_scsi_adapter_register(adapter))
 		return adapter;
 
 failed:
@@ -451,10 +428,11 @@ void zfcp_adapter_unregister(struct zfcp_adapter *adapter)
 
 	cancel_work_sync(&adapter->scan_work);
 	cancel_work_sync(&adapter->stat_work);
+	cancel_work_sync(&adapter->ns_up_work);
 	zfcp_destroy_adapter_work_queue(adapter);
 
 	zfcp_fc_wka_ports_force_offline(adapter->gs);
-	zfcp_adapter_scsi_unregister(adapter);
+	zfcp_scsi_adapter_unregister(adapter);
 	sysfs_remove_group(&cdev->dev.kobj, &zfcp_sysfs_adapter_attrs);
 
 	zfcp_erp_thread_kill(adapter);

drivers/s390/scsi/zfcp_def.h

@@ -89,7 +89,6 @@ struct zfcp_reqlist;
 #define ZFCP_STATUS_LUN_READONLY		0x00000008
 
 /* FSF request status (this does not have a common part) */
-#define ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT	0x00000002
 #define ZFCP_STATUS_FSFREQ_ERROR		0x00000008
 #define ZFCP_STATUS_FSFREQ_CLEANUP		0x00000010
 #define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED	0x00000040
@@ -108,7 +107,7 @@ struct zfcp_adapter_mempool {
 	mempool_t *scsi_req;
 	mempool_t *scsi_abort;
 	mempool_t *status_read_req;
-	mempool_t *status_read_data;
+	mempool_t *sr_data;
 	mempool_t *gid_pn;
 	mempool_t *qtcb_pool;
 };
@@ -190,6 +189,7 @@ struct zfcp_adapter {
 	struct fsf_qtcb_bottom_port *stats_reset_data;
 	unsigned long		stats_reset;
 	struct work_struct	scan_work;
+	struct work_struct	ns_up_work;
 	struct service_level	service_level;
 	struct workqueue_struct	*work_queue;
 	struct device_dma_parameters dma_parms;
@@ -314,15 +314,4 @@ struct zfcp_fsf_req {
 	void			(*handler)(struct zfcp_fsf_req *);
 };
 
-/* driver data */
-struct zfcp_data {
-	struct scsi_host_template scsi_host_template;
-	struct scsi_transport_template *scsi_transport_template;
-	struct kmem_cache	*gpn_ft_cache;
-	struct kmem_cache	*qtcb_cache;
-	struct kmem_cache	*sr_buffer_cache;
-	struct kmem_cache	*gid_pn_cache;
-	struct kmem_cache	*adisc_cache;
-};
-
 #endif /* ZFCP_DEF_H */

drivers/s390/scsi/zfcp_erp.c

@@ -732,7 +732,7 @@ static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *act)
 	if (zfcp_erp_adapter_strategy_open_fsf_xport(act) == ZFCP_ERP_FAILED)
 		return ZFCP_ERP_FAILED;
 
-	if (mempool_resize(act->adapter->pool.status_read_data,
+	if (mempool_resize(act->adapter->pool.sr_data,
 			   act->adapter->stat_read_buf_num, GFP_KERNEL))
 		return ZFCP_ERP_FAILED;
 
@@ -1231,8 +1231,10 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
 		if (result == ZFCP_ERP_SUCCEEDED) {
 			register_service_level(&adapter->service_level);
 			queue_work(adapter->work_queue, &adapter->scan_work);
+			queue_work(adapter->work_queue, &adapter->ns_up_work);
 		} else
 			unregister_service_level(&adapter->service_level);
+
 		kref_put(&adapter->ref, zfcp_adapter_release);
 		break;
 	}

drivers/s390/scsi/zfcp_ext.h

@@ -80,6 +80,7 @@ extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
 extern void zfcp_erp_timeout_handler(unsigned long);
 
 /* zfcp_fc.c */
+extern struct kmem_cache *zfcp_fc_req_cache;
 extern void zfcp_fc_enqueue_event(struct zfcp_adapter *,
 				enum fc_host_event_code event_code, u32);
 extern void zfcp_fc_post_event(struct work_struct *);
@@ -95,8 +96,10 @@ extern int zfcp_fc_gs_setup(struct zfcp_adapter *);
 extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
 extern int zfcp_fc_exec_bsg_job(struct fc_bsg_job *);
 extern int zfcp_fc_timeout_bsg_job(struct fc_bsg_job *);
+extern void zfcp_fc_sym_name_update(struct work_struct *);
 
 /* zfcp_fsf.c */
+extern struct kmem_cache *zfcp_fsf_qtcb_cache;
 extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
 extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
 extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);
@@ -139,9 +142,9 @@ extern struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *,
 					     struct qdio_buffer *);
 
 /* zfcp_scsi.c */
-extern struct zfcp_data zfcp_data;
-extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
-extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
+extern struct scsi_transport_template *zfcp_scsi_transport_template;
+extern int zfcp_scsi_adapter_register(struct zfcp_adapter *);
+extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *);
 extern struct fc_function_template zfcp_transport_functions;
 extern void zfcp_scsi_rport_work(struct work_struct *);
 extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);

drivers/s390/scsi/zfcp_fc.c

@@ -11,11 +11,14 @@
 
 #include <linux/types.h>
 #include <linux/slab.h>
+#include <linux/utsname.h>
 #include <scsi/fc/fc_els.h>
 #include <scsi/libfc.h>
 #include "zfcp_ext.h"
 #include "zfcp_fc.h"
 
+struct kmem_cache *zfcp_fc_req_cache;
+
 static u32 zfcp_fc_rscn_range_mask[] = {
 	[ELS_ADDR_FMT_PORT]		= 0xFFFFFF,
 	[ELS_ADDR_FMT_AREA]		= 0xFFFF00,
@@ -260,24 +263,18 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req)
 		zfcp_fc_incoming_rscn(fsf_req);
 }
 
-static void zfcp_fc_ns_gid_pn_eval(void *data)
+static void zfcp_fc_ns_gid_pn_eval(struct zfcp_fc_req *fc_req)
 {
-	struct zfcp_fc_gid_pn *gid_pn = data;
-	struct zfcp_fsf_ct_els *ct = &gid_pn->ct;
-	struct zfcp_fc_gid_pn_req *gid_pn_req = sg_virt(ct->req);
-	struct zfcp_fc_gid_pn_resp *gid_pn_resp = sg_virt(ct->resp);
-	struct zfcp_port *port = gid_pn->port;
+	struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+	struct zfcp_fc_gid_pn_rsp *gid_pn_rsp = &fc_req->u.gid_pn.rsp;
 
-	if (ct->status)
+	if (ct_els->status)
 		return;
-	if (gid_pn_resp->ct_hdr.ct_cmd != FC_FS_ACC)
+	if (gid_pn_rsp->ct_hdr.ct_cmd != FC_FS_ACC)
 		return;
 
-	/* paranoia */
-	if (gid_pn_req->gid_pn.fn_wwpn != port->wwpn)
-		return;
 	/* looks like a valid d_id */
-	port->d_id = ntoh24(gid_pn_resp->gid_pn.fp_fid);
+	ct_els->port->d_id = ntoh24(gid_pn_rsp->gid_pn.fp_fid);
 }
 
 static void zfcp_fc_complete(void *data)
@@ -285,69 +282,73 @@ static void zfcp_fc_complete(void *data)
 	complete(data);
 }
 
+static void zfcp_fc_ct_ns_init(struct fc_ct_hdr *ct_hdr, u16 cmd, u16 mr_size)
+{
+	ct_hdr->ct_rev = FC_CT_REV;
+	ct_hdr->ct_fs_type = FC_FST_DIR;
+	ct_hdr->ct_fs_subtype = FC_NS_SUBTYPE;
+	ct_hdr->ct_cmd = cmd;
+	ct_hdr->ct_mr_size = mr_size / 4;
+}
+
 static int zfcp_fc_ns_gid_pn_request(struct zfcp_port *port,
-				     struct zfcp_fc_gid_pn *gid_pn)
+				     struct zfcp_fc_req *fc_req)
 {
 	struct zfcp_adapter *adapter = port->adapter;
 	DECLARE_COMPLETION_ONSTACK(completion);
+	struct zfcp_fc_gid_pn_req *gid_pn_req = &fc_req->u.gid_pn.req;
+	struct zfcp_fc_gid_pn_rsp *gid_pn_rsp = &fc_req->u.gid_pn.rsp;
 	int ret;
 
 	/* setup parameters for send generic command */
-	gid_pn->port = port;
-	gid_pn->ct.handler = zfcp_fc_complete;
-	gid_pn->ct.handler_data = &completion;
-	gid_pn->ct.req = &gid_pn->sg_req;
-	gid_pn->ct.resp = &gid_pn->sg_resp;
-	sg_init_one(&gid_pn->sg_req, &gid_pn->gid_pn_req,
-		    sizeof(struct zfcp_fc_gid_pn_req));
-	sg_init_one(&gid_pn->sg_resp, &gid_pn->gid_pn_resp,
-		    sizeof(struct zfcp_fc_gid_pn_resp));
-
-	/* setup nameserver request */
-	gid_pn->gid_pn_req.ct_hdr.ct_rev = FC_CT_REV;
-	gid_pn->gid_pn_req.ct_hdr.ct_fs_type = FC_FST_DIR;
-	gid_pn->gid_pn_req.ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
-	gid_pn->gid_pn_req.ct_hdr.ct_options = 0;
-	gid_pn->gid_pn_req.ct_hdr.ct_cmd = FC_NS_GID_PN;
-	gid_pn->gid_pn_req.ct_hdr.ct_mr_size = ZFCP_FC_CT_SIZE_PAGE / 4;
-	gid_pn->gid_pn_req.gid_pn.fn_wwpn = port->wwpn;
-
-	ret = zfcp_fsf_send_ct(&adapter->gs->ds, &gid_pn->ct,
+	fc_req->ct_els.port = port;
+	fc_req->ct_els.handler = zfcp_fc_complete;
+	fc_req->ct_els.handler_data = &completion;
+	fc_req->ct_els.req = &fc_req->sg_req;
+	fc_req->ct_els.resp = &fc_req->sg_rsp;
+	sg_init_one(&fc_req->sg_req, gid_pn_req, sizeof(*gid_pn_req));
+	sg_init_one(&fc_req->sg_rsp, gid_pn_rsp, sizeof(*gid_pn_rsp));
+
+	zfcp_fc_ct_ns_init(&gid_pn_req->ct_hdr,
+			   FC_NS_GID_PN, ZFCP_FC_CT_SIZE_PAGE);
+	gid_pn_req->gid_pn.fn_wwpn = port->wwpn;
+
+	ret = zfcp_fsf_send_ct(&adapter->gs->ds, &fc_req->ct_els,
 			       adapter->pool.gid_pn_req,
 			       ZFCP_FC_CTELS_TMO);
 	if (!ret) {
 		wait_for_completion(&completion);
-		zfcp_fc_ns_gid_pn_eval(gid_pn);
+		zfcp_fc_ns_gid_pn_eval(fc_req);
 	}
 	return ret;
 }
 
 /**
- * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
+ * zfcp_fc_ns_gid_pn - initiate GID_PN nameserver request
  * @port: port where GID_PN request is needed
  * return: -ENOMEM on error, 0 otherwise
  */
 static int zfcp_fc_ns_gid_pn(struct zfcp_port *port)
 {
 	int ret;
-	struct zfcp_fc_gid_pn *gid_pn;
+	struct zfcp_fc_req *fc_req;
 	struct zfcp_adapter *adapter = port->adapter;
 
-	gid_pn = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
-	if (!gid_pn)
+	fc_req = mempool_alloc(adapter->pool.gid_pn, GFP_ATOMIC);
+	if (!fc_req)
 		return -ENOMEM;
 
-	memset(gid_pn, 0, sizeof(*gid_pn));
+	memset(fc_req, 0, sizeof(*fc_req));
 
 	ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
 	if (ret)
 		goto out;
 
-	ret = zfcp_fc_ns_gid_pn_request(port, gid_pn);
+	ret = zfcp_fc_ns_gid_pn_request(port, fc_req);
 
 	zfcp_fc_wka_port_put(&adapter->gs->ds);
 out:
-	mempool_free(gid_pn, adapter->pool.gid_pn);
+	mempool_free(fc_req, adapter->pool.gid_pn);
 	return ret;
 }
 
@@ -419,11 +420,11 @@ void zfcp_fc_plogi_evaluate(struct zfcp_port *port, struct fc_els_flogi *plogi)
 
 static void zfcp_fc_adisc_handler(void *data)
 {
-	struct zfcp_fc_els_adisc *adisc = data;
-	struct zfcp_port *port = adisc->els.port;
-	struct fc_els_adisc *adisc_resp = &adisc->adisc_resp;
+	struct zfcp_fc_req *fc_req = data;
+	struct zfcp_port *port = fc_req->ct_els.port;
+	struct fc_els_adisc *adisc_resp = &fc_req->u.adisc.rsp;
 
-	if (adisc->els.status) {
+	if (fc_req->ct_els.status) {
 		/* request rejected or timed out */
 		zfcp_erp_port_forced_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
 					    "fcadh_1");
@@ -445,42 +446,42 @@ static void zfcp_fc_adisc_handler(void *data)
  out:
 	atomic_clear_mask(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
 	put_device(&port->dev);
-	kmem_cache_free(zfcp_data.adisc_cache, adisc);
+	kmem_cache_free(zfcp_fc_req_cache, fc_req);
 }
 
 static int zfcp_fc_adisc(struct zfcp_port *port)
 {
-	struct zfcp_fc_els_adisc *adisc;
+	struct zfcp_fc_req *fc_req;
 	struct zfcp_adapter *adapter = port->adapter;
+	struct Scsi_Host *shost = adapter->scsi_host;
 	int ret;
 
-	adisc = kmem_cache_zalloc(zfcp_data.adisc_cache, GFP_ATOMIC);
-	if (!adisc)
+	fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_ATOMIC);
+	if (!fc_req)
 		return -ENOMEM;
 
-	adisc->els.port = port;
-	adisc->els.req = &adisc->req;
-	adisc->els.resp = &adisc->resp;
-	sg_init_one(adisc->els.req, &adisc->adisc_req,
+	fc_req->ct_els.port = port;
+	fc_req->ct_els.req = &fc_req->sg_req;
+	fc_req->ct_els.resp = &fc_req->sg_rsp;
+	sg_init_one(&fc_req->sg_req, &fc_req->u.adisc.req,
 		    sizeof(struct fc_els_adisc));
-	sg_init_one(adisc->els.resp, &adisc->adisc_resp,
+	sg_init_one(&fc_req->sg_rsp, &fc_req->u.adisc.rsp,
 		    sizeof(struct fc_els_adisc));
 
-	adisc->els.handler = zfcp_fc_adisc_handler;
-	adisc->els.handler_data = adisc;
+	fc_req->ct_els.handler = zfcp_fc_adisc_handler;
+	fc_req->ct_els.handler_data = fc_req;
 
 	/* acc. to FC-FS, hard_nport_id in ADISC should not be set for ports
 	   without FC-AL-2 capability, so we don't set it */
-	adisc->adisc_req.adisc_wwpn = fc_host_port_name(adapter->scsi_host);
-	adisc->adisc_req.adisc_wwnn = fc_host_node_name(adapter->scsi_host);
-	adisc->adisc_req.adisc_cmd = ELS_ADISC;
-	hton24(adisc->adisc_req.adisc_port_id,
-	       fc_host_port_id(adapter->scsi_host));
+	fc_req->u.adisc.req.adisc_wwpn = fc_host_port_name(shost);
+	fc_req->u.adisc.req.adisc_wwnn = fc_host_node_name(shost);
+	fc_req->u.adisc.req.adisc_cmd = ELS_ADISC;
+	hton24(fc_req->u.adisc.req.adisc_port_id, fc_host_port_id(shost));
 
-	ret = zfcp_fsf_send_els(adapter, port->d_id, &adisc->els,
+	ret = zfcp_fsf_send_els(adapter, port->d_id, &fc_req->ct_els,
 				ZFCP_FC_CTELS_TMO);
 	if (ret)
-		kmem_cache_free(zfcp_data.adisc_cache, adisc);
+		kmem_cache_free(zfcp_fc_req_cache, fc_req);
 
 	return ret;
 }
@@ -528,68 +529,42 @@ void zfcp_fc_test_link(struct zfcp_port *port)
 		put_device(&port->dev);
 }
 
-static void zfcp_free_sg_env(struct zfcp_fc_gpn_ft *gpn_ft, int buf_num)
+static struct zfcp_fc_req *zfcp_alloc_sg_env(int buf_num)
 {
-	struct scatterlist *sg = &gpn_ft->sg_req;
-
-	kmem_cache_free(zfcp_data.gpn_ft_cache, sg_virt(sg));
-	zfcp_sg_free_table(gpn_ft->sg_resp, buf_num);
-
-	kfree(gpn_ft);
-}
+	struct zfcp_fc_req *fc_req;
 
-static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num)
-{
-	struct zfcp_fc_gpn_ft *gpn_ft;
-	struct zfcp_fc_gpn_ft_req *req;
-
-	gpn_ft = kzalloc(sizeof(*gpn_ft), GFP_KERNEL);
-	if (!gpn_ft)
+	fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL);
+	if (!fc_req)
 		return NULL;
 
-	req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL);
-	if (!req) {
-		kfree(gpn_ft);
-		gpn_ft = NULL;
-		goto out;
+	if (zfcp_sg_setup_table(&fc_req->sg_rsp, buf_num)) {
+		kmem_cache_free(zfcp_fc_req_cache, fc_req);
+		return NULL;
 	}
-	sg_init_one(&gpn_ft->sg_req, req, sizeof(*req));
 
-	if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) {
-		zfcp_free_sg_env(gpn_ft, buf_num);
-		gpn_ft = NULL;
-	}
-out:
-	return gpn_ft;
-}
+	sg_init_one(&fc_req->sg_req, &fc_req->u.gpn_ft.req,
+		    sizeof(struct zfcp_fc_gpn_ft_req));
 
+	return fc_req;
+}
 
-static int zfcp_fc_send_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+static int zfcp_fc_send_gpn_ft(struct zfcp_fc_req *fc_req,
 			       struct zfcp_adapter *adapter, int max_bytes)
 {
-	struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
-	struct zfcp_fc_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
+	struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+	struct zfcp_fc_gpn_ft_req *req = &fc_req->u.gpn_ft.req;
 	DECLARE_COMPLETION_ONSTACK(completion);
 	int ret;
 
-	/* prepare CT IU for GPN_FT */
-	req->ct_hdr.ct_rev = FC_CT_REV;
-	req->ct_hdr.ct_fs_type = FC_FST_DIR;
-	req->ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE;
-	req->ct_hdr.ct_options = 0;
-	req->ct_hdr.ct_cmd = FC_NS_GPN_FT;
-	req->ct_hdr.ct_mr_size = max_bytes / 4;
-	req->gpn_ft.fn_domain_id_scope = 0;
-	req->gpn_ft.fn_area_id_scope = 0;
+	zfcp_fc_ct_ns_init(&req->ct_hdr, FC_NS_GPN_FT, max_bytes);
 	req->gpn_ft.fn_fc4_type = FC_TYPE_FCP;
 
-	/* prepare zfcp_send_ct */
-	ct->handler = zfcp_fc_complete;
-	ct->handler_data = &completion;
-	ct->req = &gpn_ft->sg_req;
-	ct->resp = gpn_ft->sg_resp;
+	ct_els->handler = zfcp_fc_complete;
+	ct_els->handler_data = &completion;
+	ct_els->req = &fc_req->sg_req;
+	ct_els->resp = &fc_req->sg_rsp;
 
-	ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct, NULL,
+	ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
 			       ZFCP_FC_CTELS_TMO);
 	if (!ret)
 		wait_for_completion(&completion);
@@ -610,11 +585,11 @@ static void zfcp_fc_validate_port(struct zfcp_port *port, struct list_head *lh)
 	list_move_tail(&port->list, lh);
 }
 
-static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
+static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_req *fc_req,
 			       struct zfcp_adapter *adapter, int max_entries)
 {
-	struct zfcp_fsf_ct_els *ct = &gpn_ft->ct;
-	struct scatterlist *sg = gpn_ft->sg_resp;
+	struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+	struct scatterlist *sg = &fc_req->sg_rsp;
 	struct fc_ct_hdr *hdr = sg_virt(sg);
 	struct fc_gpn_ft_resp *acc = sg_virt(sg);
 	struct zfcp_port *port, *tmp;
@@ -623,7 +598,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft,
 	u32 d_id;
 	int ret = 0, x, last = 0;
 
-	if (ct->status)
+	if (ct_els->status)
 		return -EIO;
 
 	if (hdr->ct_cmd != FC_FS_ACC) {
@@ -687,7 +662,7 @@ void zfcp_fc_scan_ports(struct work_struct *work)
 	struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
 						    scan_work);
 	int ret, i;
-	struct zfcp_fc_gpn_ft *gpn_ft;
+	struct zfcp_fc_req *fc_req;
 	int chain, max_entries, buf_num, max_bytes;
 
 	chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS;
@@ -702,25 +677,145 @@ void zfcp_fc_scan_ports(struct work_struct *work)
 	if (zfcp_fc_wka_port_get(&adapter->gs->ds))
 		return;
 
-	gpn_ft = zfcp_alloc_sg_env(buf_num);
-	if (!gpn_ft)
+	fc_req = zfcp_alloc_sg_env(buf_num);
+	if (!fc_req)
 		goto out;
 
 	for (i = 0; i < 3; i++) {
-		ret = zfcp_fc_send_gpn_ft(gpn_ft, adapter, max_bytes);
+		ret = zfcp_fc_send_gpn_ft(fc_req, adapter, max_bytes);
 		if (!ret) {
-			ret = zfcp_fc_eval_gpn_ft(gpn_ft, adapter, max_entries);
+			ret = zfcp_fc_eval_gpn_ft(fc_req, adapter, max_entries);
 			if (ret == -EAGAIN)
 				ssleep(1);
 			else
 				break;
 		}
 	}
-	zfcp_free_sg_env(gpn_ft, buf_num);
+	zfcp_sg_free_table(&fc_req->sg_rsp, buf_num);
+	kmem_cache_free(zfcp_fc_req_cache, fc_req);
 out:
 	zfcp_fc_wka_port_put(&adapter->gs->ds);
 }
 
+static int zfcp_fc_gspn(struct zfcp_adapter *adapter,
+			struct zfcp_fc_req *fc_req)
+{
+	DECLARE_COMPLETION_ONSTACK(completion);
+	char devno[] = "DEVNO:";
+	struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+	struct zfcp_fc_gspn_req *gspn_req = &fc_req->u.gspn.req;
+	struct zfcp_fc_gspn_rsp *gspn_rsp = &fc_req->u.gspn.rsp;
+	int ret;
+
+	zfcp_fc_ct_ns_init(&gspn_req->ct_hdr, FC_NS_GSPN_ID,
+			   FC_SYMBOLIC_NAME_SIZE);
+	hton24(gspn_req->gspn.fp_fid, fc_host_port_id(adapter->scsi_host));
+
+	sg_init_one(&fc_req->sg_req, gspn_req, sizeof(*gspn_req));
+	sg_init_one(&fc_req->sg_rsp, gspn_rsp, sizeof(*gspn_rsp));
+
+	ct_els->handler = zfcp_fc_complete;
+	ct_els->handler_data = &completion;
+	ct_els->req = &fc_req->sg_req;
+	ct_els->resp = &fc_req->sg_rsp;
+
+	ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
+			       ZFCP_FC_CTELS_TMO);
+	if (ret)
+		return ret;
+
+	wait_for_completion(&completion);
+	if (ct_els->status)
+		return ct_els->status;
+
+	if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_NPIV &&
+	    !(strstr(gspn_rsp->gspn.fp_name, devno)))
+		snprintf(fc_host_symbolic_name(adapter->scsi_host),
+			 FC_SYMBOLIC_NAME_SIZE, "%s%s %s NAME: %s",
+			 gspn_rsp->gspn.fp_name, devno,
+			 dev_name(&adapter->ccw_device->dev),
+			 init_utsname()->nodename);
+	else
+		strlcpy(fc_host_symbolic_name(adapter->scsi_host),
+			gspn_rsp->gspn.fp_name, FC_SYMBOLIC_NAME_SIZE);
+
+	return 0;
+}
+
+static void zfcp_fc_rspn(struct zfcp_adapter *adapter,
+			 struct zfcp_fc_req *fc_req)
+{
+	DECLARE_COMPLETION_ONSTACK(completion);
+	struct Scsi_Host *shost = adapter->scsi_host;
+	struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els;
+	struct zfcp_fc_rspn_req *rspn_req = &fc_req->u.rspn.req;
+	struct fc_ct_hdr *rspn_rsp = &fc_req->u.rspn.rsp;
+	int ret, len;
+
+	zfcp_fc_ct_ns_init(&rspn_req->ct_hdr, FC_NS_RSPN_ID,
+			   FC_SYMBOLIC_NAME_SIZE);
+	hton24(rspn_req->rspn.fr_fid.fp_fid, fc_host_port_id(shost));
+	len = strlcpy(rspn_req->rspn.fr_name, fc_host_symbolic_name(shost),
+		      FC_SYMBOLIC_NAME_SIZE);
+	rspn_req->rspn.fr_name_len = len;
+
+	sg_init_one(&fc_req->sg_req, rspn_req, sizeof(*rspn_req));
+	sg_init_one(&fc_req->sg_rsp, rspn_rsp, sizeof(*rspn_rsp));
+
+	ct_els->handler = zfcp_fc_complete;
+	ct_els->handler_data = &completion;
+	ct_els->req = &fc_req->sg_req;
+	ct_els->resp = &fc_req->sg_rsp;
+
+	ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL,
+			       ZFCP_FC_CTELS_TMO);
+	if (!ret)
+		wait_for_completion(&completion);
+}
+
+/**
+ * zfcp_fc_sym_name_update - Retrieve and update the symbolic port name
+ * @work: ns_up_work of the adapter where to update the symbolic port name
+ *
+ * Retrieve the current symbolic port name that may have been set by
+ * the hardware using the GSPN request and update the fc_host
+ * symbolic_name sysfs attribute. When running in NPIV mode (and hence
+ * the port name is unique for this system), update the symbolic port
+ * name to add Linux specific information and update the FC nameserver
+ * using the RSPN request.
+ */
+void zfcp_fc_sym_name_update(struct work_struct *work)
+{
+	struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter,
+						    ns_up_work);
+	int ret;
+	struct zfcp_fc_req *fc_req;
+
+	if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT &&
+	    fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
+		return;
+
+	fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL);
+	if (!fc_req)
+		return;
+
+	ret = zfcp_fc_wka_port_get(&adapter->gs->ds);
+	if (ret)
+		goto out_free;
+
+	ret = zfcp_fc_gspn(adapter, fc_req);
+	if (ret || fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPIV)
+		goto out_ds_put;
+
+	memset(fc_req, 0, sizeof(*fc_req));
+	zfcp_fc_rspn(adapter, fc_req);
+
+out_ds_put:
+	zfcp_fc_wka_port_put(&adapter->gs->ds);
+out_free:
+	kmem_cache_free(zfcp_fc_req_cache, fc_req);
+}
+
 static void zfcp_fc_ct_els_job_handler(void *data)
 {
 	struct fc_bsg_job *job = data;

drivers/s390/scsi/zfcp_fc.h

@@ -64,32 +64,15 @@ struct zfcp_fc_gid_pn_req {
 } __packed;
 
 /**
- * struct zfcp_fc_gid_pn_resp - container for ct header plus gid_pn response
+ * struct zfcp_fc_gid_pn_rsp - container for ct header plus gid_pn response
  * @ct_hdr: FC GS common transport header
  * @gid_pn: GID_PN response
  */
-struct zfcp_fc_gid_pn_resp {
+struct zfcp_fc_gid_pn_rsp {
 	struct fc_ct_hdr	ct_hdr;
 	struct fc_gid_pn_resp	gid_pn;
 } __packed;
 
-/**
- * struct zfcp_fc_gid_pn - everything required in zfcp for gid_pn request
- * @ct: data passed to zfcp_fsf for issuing fsf request
- * @sg_req: scatterlist entry for request data
- * @sg_resp: scatterlist entry for response data
- * @gid_pn_req: GID_PN request data
- * @gid_pn_resp: GID_PN response data
- */
-struct zfcp_fc_gid_pn {
-	struct zfcp_fsf_ct_els ct;
-	struct scatterlist sg_req;
-	struct scatterlist sg_resp;
-	struct zfcp_fc_gid_pn_req gid_pn_req;
-	struct zfcp_fc_gid_pn_resp gid_pn_resp;
-	struct zfcp_port *port;
-};
-
 /**
  * struct zfcp_fc_gpn_ft - container for ct header plus gpn_ft request
  * @ct_hdr: FC GS common transport header
@@ -101,41 +84,72 @@ struct zfcp_fc_gpn_ft_req {
 } __packed;
 
 /**
- * struct zfcp_fc_gpn_ft_resp - container for ct header plus gpn_ft response
+ * struct zfcp_fc_gspn_req - container for ct header plus GSPN_ID request
  * @ct_hdr: FC GS common transport header
- * @gpn_ft: Array of gpn_ft response data to fill one memory page
+ * @gspn: GSPN_ID request
  */
-struct zfcp_fc_gpn_ft_resp {
+struct zfcp_fc_gspn_req {
 	struct fc_ct_hdr	ct_hdr;
-	struct fc_gpn_ft_resp	gpn_ft[ZFCP_FC_GPN_FT_ENT_PAGE];
+	struct fc_gid_pn_resp	gspn;
 } __packed;
 
 /**
- * struct zfcp_fc_gpn_ft - zfcp data for gpn_ft request
- * @ct: data passed to zfcp_fsf for issuing fsf request
- * @sg_req: scatter list entry for gpn_ft request
- * @sg_resp: scatter list entries for gpn_ft responses (per memory page)
+ * struct zfcp_fc_gspn_rsp - container for ct header plus GSPN_ID response
+ * @ct_hdr: FC GS common transport header
+ * @gspn: GSPN_ID response
+ * @name: The name string of the GSPN_ID response
  */
-struct zfcp_fc_gpn_ft {
-	struct zfcp_fsf_ct_els ct;
-	struct scatterlist sg_req;
-	struct scatterlist sg_resp[ZFCP_FC_GPN_FT_NUM_BUFS];
-};
+struct zfcp_fc_gspn_rsp {
+	struct fc_ct_hdr	ct_hdr;
+	struct fc_gspn_resp	gspn;
+	char			name[FC_SYMBOLIC_NAME_SIZE];
+} __packed;
 
 /**
- * struct zfcp_fc_els_adisc - everything required in zfcp for issuing ELS ADISC
- * @els: data required for issuing els fsf command
- * @req: scatterlist entry for ELS ADISC request
- * @resp: scatterlist entry for ELS ADISC response
- * @adisc_req: ELS ADISC request data
- * @adisc_resp: ELS ADISC response data
+ * struct zfcp_fc_rspn_req - container for ct header plus RSPN_ID request
+ * @ct_hdr: FC GS common transport header
+ * @rspn: RSPN_ID request
+ * @name: The name string of the RSPN_ID request
  */
-struct zfcp_fc_els_adisc {
-	struct zfcp_fsf_ct_els els;
-	struct scatterlist req;
-	struct scatterlist resp;
-	struct fc_els_adisc adisc_req;
-	struct fc_els_adisc adisc_resp;
+struct zfcp_fc_rspn_req {
+	struct fc_ct_hdr	ct_hdr;
+	struct fc_ns_rspn	rspn;
+	char			name[FC_SYMBOLIC_NAME_SIZE];
+} __packed;
+
+/**
+ * struct zfcp_fc_req - Container for FC ELS and CT requests sent from zfcp
+ * @ct_els: data required for issuing fsf command
+ * @sg_req: scatterlist entry for request data
+ * @sg_rsp: scatterlist entry for response data
+ * @u: request specific data
+ */
+struct zfcp_fc_req {
+	struct zfcp_fsf_ct_els				ct_els;
+	struct scatterlist				sg_req;
+	struct scatterlist				sg_rsp;
+	union {
+		struct {
+			struct fc_els_adisc		req;
+			struct fc_els_adisc		rsp;
+		} adisc;
+		struct {
+			struct zfcp_fc_gid_pn_req	req;
+			struct zfcp_fc_gid_pn_rsp	rsp;
+		} gid_pn;
+		struct {
+			struct scatterlist sg_rsp2[ZFCP_FC_GPN_FT_NUM_BUFS - 1];
+			struct zfcp_fc_gpn_ft_req	req;
+		} gpn_ft;
+		struct {
+			struct zfcp_fc_gspn_req		req;
+			struct zfcp_fc_gspn_rsp		rsp;
+		} gspn;
+		struct {
+			struct zfcp_fc_rspn_req		req;
+			struct fc_ct_hdr		rsp;
+		} rspn;
+	} u;
 };
 
 /**
@@ -192,14 +206,21 @@ struct zfcp_fc_wka_ports {
  * zfcp_fc_scsi_to_fcp - setup FCP command with data from scsi_cmnd
  * @fcp: fcp_cmnd to setup
  * @scsi: scsi_cmnd where to get LUN, task attributes/flags and CDB
+ * @tm: task management flags to setup task management command
  */
 static inline
-void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi)
+void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi,
+			 u8 tm_flags)
 {
 	char tag[2];
 
 	int_to_scsilun(scsi->device->lun, (struct scsi_lun *) &fcp->fc_lun);
 
+	if (unlikely(tm_flags)) {
+		fcp->fc_tm_flags = tm_flags;
+		return;
+	}
+
 	if (scsi_populate_tag_msg(scsi, tag)) {
 		switch (tag[0]) {
 		case MSG_ORDERED_TAG:
@@ -225,19 +246,6 @@ void zfcp_fc_scsi_to_fcp(struct fcp_cmnd *fcp, struct scsi_cmnd *scsi)
 		fcp->fc_dl += fcp->fc_dl / scsi->device->sector_size * 8;
 }
 
-/**
- * zfcp_fc_fcp_tm - setup FCP command as task management command
- * @fcp: fcp_cmnd to setup
- * @dev: scsi_device where to send the task management command
- * @tm: task management flags to setup tm command
- */
-static inline
-void zfcp_fc_fcp_tm(struct fcp_cmnd *fcp, struct scsi_device *dev, u8 tm_flags)
-{
-	int_to_scsilun(dev->lun, (struct scsi_lun *) &fcp->fc_lun);
-	fcp->fc_tm_flags |= tm_flags;
-}
-
 /**
  * zfcp_fc_evap_fcp_rsp - evaluate FCP RSP IU and update scsi_cmnd accordingly
  * @fcp_rsp: FCP RSP IU to evaluate

drivers/s390/scsi/zfcp_fsf.c

@@ -18,6 +18,8 @@
 #include "zfcp_qdio.h"
 #include "zfcp_reqlist.h"
 
+struct kmem_cache *zfcp_fsf_qtcb_cache;
+
 static void zfcp_fsf_request_timeout_handler(unsigned long data)
 {
 	struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
@@ -83,7 +85,7 @@ void zfcp_fsf_req_free(struct zfcp_fsf_req *req)
 	}
 
 	if (likely(req->qtcb))
-		kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb);
+		kmem_cache_free(zfcp_fsf_qtcb_cache, req->qtcb);
 	kfree(req);
 }
 
@@ -212,7 +214,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
 
 	if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
 		zfcp_dbf_hba_fsf_uss("fssrh_1", req);
-		mempool_free(sr_buf, adapter->pool.status_read_data);
+		mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
 		zfcp_fsf_req_free(req);
 		return;
 	}
@@ -265,7 +267,7 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
 		break;
 	}
 
-	mempool_free(sr_buf, adapter->pool.status_read_data);
+	mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
 	zfcp_fsf_req_free(req);
 
 	atomic_inc(&adapter->stat_miss);
@@ -628,7 +630,7 @@ static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool)
 	if (likely(pool))
 		qtcb = mempool_alloc(pool, GFP_ATOMIC);
 	else
-		qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC);
+		qtcb = kmem_cache_alloc(zfcp_fsf_qtcb_cache, GFP_ATOMIC);
 
 	if (unlikely(!qtcb))
 		return NULL;
@@ -723,6 +725,7 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
 	struct zfcp_adapter *adapter = qdio->adapter;
 	struct zfcp_fsf_req *req;
 	struct fsf_status_read_buffer *sr_buf;
+	struct page *page;
 	int retval = -EIO;
 
 	spin_lock_irq(&qdio->req_q_lock);
@@ -736,11 +739,12 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
 		goto out;
 	}
 
-	sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC);
-	if (!sr_buf) {
+	page = mempool_alloc(adapter->pool.sr_data, GFP_ATOMIC);
+	if (!page) {
 		retval = -ENOMEM;
 		goto failed_buf;
 	}
+	sr_buf = page_address(page);
 	memset(sr_buf, 0, sizeof(*sr_buf));
 	req->data = sr_buf;
 
@@ -755,7 +759,7 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
 
 failed_req_send:
 	req->data = NULL;
-	mempool_free(sr_buf, adapter->pool.status_read_data);
+	mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data);
 failed_buf:
 	zfcp_dbf_hba_fsf_uss("fssr__1", req);
 	zfcp_fsf_req_free(req);
@@ -1552,7 +1556,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
 				  SBAL_FLAGS0_TYPE_READ,
 				  qdio->adapter->pool.erp_req);
 
-	if (unlikely(IS_ERR(req))) {
+	if (IS_ERR(req)) {
 		retval = PTR_ERR(req);
 		goto out;
 	}
@@ -1605,7 +1609,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
 				  SBAL_FLAGS0_TYPE_READ,
 				  qdio->adapter->pool.erp_req);
 
-	if (unlikely(IS_ERR(req))) {
+	if (IS_ERR(req)) {
 		retval = PTR_ERR(req);
 		goto out;
 	}
@@ -2206,7 +2210,7 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd)
 	zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction);
 
 	fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
-	zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
+	zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0);
 
 	if (scsi_prot_sg_count(scsi_cmnd)) {
 		zfcp_qdio_set_data_div(qdio, &req->qdio_req,
@@ -2284,7 +2288,6 @@ struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd,
 		goto out;
 	}
 
-	req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
 	req->data = scmnd;
 	req->handler = zfcp_fsf_fcp_task_mgmt_handler;
 	req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
@@ -2296,7 +2299,7 @@ struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd,
 	zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
 
 	fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
-	zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags);
+	zfcp_fc_scsi_to_fcp(fcp_cmnd, scmnd, tm_flags);
 
 	zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
 	if (!zfcp_fsf_req_send(req))

drivers/s390/scsi/zfcp_scsi.c

@@ -292,7 +292,37 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 	return SUCCESS;
 }
 
-int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
+struct scsi_transport_template *zfcp_scsi_transport_template;
+
+static struct scsi_host_template zfcp_scsi_host_template = {
+	.module			 = THIS_MODULE,
+	.name			 = "zfcp",
+	.queuecommand		 = zfcp_scsi_queuecommand,
+	.eh_abort_handler	 = zfcp_scsi_eh_abort_handler,
+	.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
+	.eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
+	.eh_host_reset_handler	 = zfcp_scsi_eh_host_reset_handler,
+	.slave_alloc		 = zfcp_scsi_slave_alloc,
+	.slave_configure	 = zfcp_scsi_slave_configure,
+	.slave_destroy		 = zfcp_scsi_slave_destroy,
+	.change_queue_depth	 = zfcp_scsi_change_queue_depth,
+	.proc_name		 = "zfcp",
+	.can_queue		 = 4096,
+	.this_id		 = -1,
+	.sg_tablesize		 = ZFCP_QDIO_MAX_SBALES_PER_REQ,
+	.max_sectors		 = (ZFCP_QDIO_MAX_SBALES_PER_REQ * 8),
+	.dma_boundary		 = ZFCP_QDIO_SBALE_LEN - 1,
+	.cmd_per_lun		 = 1,
+	.use_clustering		 = 1,
+	.shost_attrs		 = zfcp_sysfs_shost_attrs,
+	.sdev_attrs		 = zfcp_sysfs_sdev_attrs,
+};
+
+/**
+ * zfcp_scsi_adapter_register - Register SCSI and FC host with SCSI midlayer
+ * @adapter: The zfcp adapter to register with the SCSI midlayer
+ */
+int zfcp_scsi_adapter_register(struct zfcp_adapter *adapter)
 {
 	struct ccw_dev_id dev_id;
 
@@ -301,7 +331,7 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
 
 	ccw_device_get_id(adapter->ccw_device, &dev_id);
 	/* register adapter as SCSI host with mid layer of SCSI stack */
-	adapter->scsi_host = scsi_host_alloc(&zfcp_data.scsi_host_template,
+	adapter->scsi_host = scsi_host_alloc(&zfcp_scsi_host_template,
 					     sizeof (struct zfcp_adapter *));
 	if (!adapter->scsi_host) {
 		dev_err(&adapter->ccw_device->dev,
@@ -316,7 +346,7 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
 	adapter->scsi_host->max_channel = 0;
 	adapter->scsi_host->unique_id = dev_id.devno;
 	adapter->scsi_host->max_cmd_len = 16; /* in struct fcp_cmnd */
-	adapter->scsi_host->transportt = zfcp_data.scsi_transport_template;
+	adapter->scsi_host->transportt = zfcp_scsi_transport_template;
 
 	adapter->scsi_host->hostdata[0] = (unsigned long) adapter;
 
@@ -328,7 +358,11 @@ int zfcp_adapter_scsi_register(struct zfcp_adapter *adapter)
 	return 0;
 }
 
-void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
+/**
+ * zfcp_scsi_adapter_unregister - Unregister SCSI and FC host from SCSI midlayer
+ * @adapter: The zfcp adapter to unregister.
+ */
+void zfcp_scsi_adapter_unregister(struct zfcp_adapter *adapter)
 {
 	struct Scsi_Host *shost;
 	struct zfcp_port *port;
@@ -346,8 +380,6 @@ void zfcp_adapter_scsi_unregister(struct zfcp_adapter *adapter)
 	scsi_remove_host(shost);
 	scsi_host_put(shost);
 	adapter->scsi_host = NULL;
-
-	return;
 }
 
 static struct fc_host_statistics*
@@ -688,33 +720,8 @@ struct fc_function_template zfcp_transport_functions = {
 	/* no functions registered for following dynamic attributes but
 	   directly set by LLDD */
 	.show_host_port_type = 1,
+	.show_host_symbolic_name = 1,
 	.show_host_speed = 1,
 	.show_host_port_id = 1,
 	.dd_bsg_size = sizeof(struct zfcp_fsf_ct_els),
 };
-
-struct zfcp_data zfcp_data = {
-	.scsi_host_template = {
-		.name			 = "zfcp",
-		.module			 = THIS_MODULE,
-		.proc_name		 = "zfcp",
-		.change_queue_depth	 = zfcp_scsi_change_queue_depth,
-		.slave_alloc		 = zfcp_scsi_slave_alloc,
-		.slave_configure	 = zfcp_scsi_slave_configure,
-		.slave_destroy		 = zfcp_scsi_slave_destroy,
-		.queuecommand		 = zfcp_scsi_queuecommand,
-		.eh_abort_handler	 = zfcp_scsi_eh_abort_handler,
-		.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
-		.eh_target_reset_handler = zfcp_scsi_eh_target_reset_handler,
-		.eh_host_reset_handler	 = zfcp_scsi_eh_host_reset_handler,
-		.can_queue		 = 4096,
-		.this_id		 = -1,
-		.sg_tablesize		 = ZFCP_QDIO_MAX_SBALES_PER_REQ,
-		.cmd_per_lun		 = 1,
-		.use_clustering		 = 1,
-		.sdev_attrs		 = zfcp_sysfs_sdev_attrs,
-		.max_sectors		 = (ZFCP_QDIO_MAX_SBALES_PER_REQ * 8),
-		.dma_boundary		 = ZFCP_QDIO_SBALE_LEN - 1,
-		.shost_attrs		 = zfcp_sysfs_shost_attrs,
-	},
-};

drivers/scsi/Kconfig

@@ -381,6 +381,7 @@ config ISCSI_BOOT_SYSFS
 
 source "drivers/scsi/cxgbi/Kconfig"
 source "drivers/scsi/bnx2i/Kconfig"
+source "drivers/scsi/bnx2fc/Kconfig"
 source "drivers/scsi/be2iscsi/Kconfig"
 
 config SGIWD93_SCSI

drivers/scsi/Makefile

@@ -40,6 +40,7 @@ obj-$(CONFIG_LIBFC)		+= libfc/
 obj-$(CONFIG_LIBFCOE)		+= fcoe/
 obj-$(CONFIG_FCOE)		+= fcoe/
 obj-$(CONFIG_FCOE_FNIC)		+= fnic/
+obj-$(CONFIG_SCSI_BNX2X_FCOE)	+= libfc/ fcoe/ bnx2fc/
 obj-$(CONFIG_ISCSI_TCP) 	+= libiscsi.o	libiscsi_tcp.o iscsi_tcp.o
 obj-$(CONFIG_INFINIBAND_ISER) 	+= libiscsi.o
 obj-$(CONFIG_ISCSI_BOOT_SYSFS)	+= iscsi_boot_sysfs.o

drivers/scsi/NCR5380.c

@@ -936,8 +936,7 @@ static void NCR5380_exit(struct Scsi_Host *instance)
 {
 	struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
 
-	cancel_delayed_work(&hostdata->coroutine);
-	flush_scheduled_work();
+	cancel_delayed_work_sync(&hostdata->coroutine);
 }
 
 /**

drivers/scsi/arcmsr/arcmsr_hba.c

@@ -1020,7 +1020,7 @@ static void arcmsr_remove(struct pci_dev *pdev)
 	int poll_count = 0;
 	arcmsr_free_sysfs_attr(acb);
 	scsi_remove_host(host);
-	flush_scheduled_work();
+	flush_work_sync(&acb->arcmsr_do_message_isr_bh);
 	del_timer_sync(&acb->eternal_timer);
 	arcmsr_disable_outbound_ints(acb);
 	arcmsr_stop_adapter_bgrb(acb);
@@ -1066,7 +1066,7 @@ static void arcmsr_shutdown(struct pci_dev *pdev)
 		(struct AdapterControlBlock *)host->hostdata;
 	del_timer_sync(&acb->eternal_timer);
 	arcmsr_disable_outbound_ints(acb);
-	flush_scheduled_work();
+	flush_work_sync(&acb->arcmsr_do_message_isr_bh);
 	arcmsr_stop_adapter_bgrb(acb);
 	arcmsr_flush_adapter_cache(acb);
 }

drivers/scsi/be2iscsi/be_iscsi.c

@@ -210,28 +210,20 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
 }
 
 /**
- * beiscsi_conn_get_param - get the iscsi parameter
- * @cls_conn: pointer to iscsi cls conn
+ * beiscsi_ep_get_param - get the iscsi parameter
+ * @ep: pointer to iscsi ep
  * @param: parameter type identifier
  * @buf: buffer pointer
  *
  * returns iscsi parameter
  */
-int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+int beiscsi_ep_get_param(struct iscsi_endpoint *ep,
 			   enum iscsi_param param, char *buf)
 {
-	struct beiscsi_endpoint *beiscsi_ep;
-	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
 	int len = 0;
 
 	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_param, param= %d\n", param);
-	beiscsi_ep = beiscsi_conn->ep;
-	if (!beiscsi_ep) {
-		SE_DEBUG(DBG_LVL_1,
-			 "In beiscsi_conn_get_param , no beiscsi_ep\n");
-		return -ENODEV;
-	}
 
 	switch (param) {
 	case ISCSI_PARAM_CONN_PORT:
@@ -244,7 +236,7 @@ int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
 			len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
 		break;
 	default:
-		return iscsi_conn_get_param(cls_conn, param, buf);
+		return -ENOSYS;
 	}
 	return len;
 }

drivers/scsi/be2iscsi/be_iscsi.h

@@ -48,8 +48,8 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
 		      struct iscsi_cls_conn *cls_conn,
 		      uint64_t transport_fd, int is_leading);
 
-int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
-			   enum iscsi_param param, char *buf);
+int beiscsi_ep_get_param(struct iscsi_endpoint *ep, enum iscsi_param param,
+			 char *buf);
 
 int beiscsi_get_host_param(struct Scsi_Host *shost,
 			   enum iscsi_host_param param, char *buf);

drivers/scsi/be2iscsi/be_main.c

@@ -4384,7 +4384,7 @@ struct iscsi_transport beiscsi_iscsi_transport = {
 	.bind_conn = beiscsi_conn_bind,
 	.destroy_conn = iscsi_conn_teardown,
 	.set_param = beiscsi_set_param,
-	.get_conn_param = beiscsi_conn_get_param,
+	.get_conn_param = iscsi_conn_get_param,
 	.get_session_param = iscsi_session_get_param,
 	.get_host_param = beiscsi_get_host_param,
 	.start_conn = beiscsi_conn_start,
@@ -4395,6 +4395,7 @@ struct iscsi_transport beiscsi_iscsi_transport = {
 	.alloc_pdu = beiscsi_alloc_pdu,
 	.parse_pdu_itt = beiscsi_parse_pdu,
 	.get_stats = beiscsi_conn_get_stats,
+	.get_ep_param = beiscsi_ep_get_param,
 	.ep_connect = beiscsi_ep_connect,
 	.ep_poll = beiscsi_ep_poll,
 	.ep_disconnect = beiscsi_ep_disconnect,

drivers/scsi/bnx2fc/57xx_hsi_bnx2fc.h

@@ -0,0 +1,1080 @@
+#ifndef __57XX_FCOE_HSI_LINUX_LE__
+#define __57XX_FCOE_HSI_LINUX_LE__
+
+/*
+ * common data for all protocols
+ */
+struct b577xx_doorbell_hdr {
+	u8 header;
+#define B577XX_DOORBELL_HDR_RX (0x1<<0)
+#define B577XX_DOORBELL_HDR_RX_SHIFT 0
+#define B577XX_DOORBELL_HDR_DB_TYPE (0x1<<1)
+#define B577XX_DOORBELL_HDR_DB_TYPE_SHIFT 1
+#define B577XX_DOORBELL_HDR_DPM_SIZE (0x3<<2)
+#define B577XX_DOORBELL_HDR_DPM_SIZE_SHIFT 2
+#define B577XX_DOORBELL_HDR_CONN_TYPE (0xF<<4)
+#define B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT 4
+};
+
+/*
+ * doorbell message sent to the chip
+ */
+struct b577xx_doorbell_set_prod {
+#if defined(__BIG_ENDIAN)
+	u16 prod;
+	u8 zero_fill1;
+	struct b577xx_doorbell_hdr header;
+#elif defined(__LITTLE_ENDIAN)
+	struct b577xx_doorbell_hdr header;
+	u8 zero_fill1;
+	u16 prod;
+#endif
+};
+
+
+struct regpair {
+	__le32 lo;
+	__le32 hi;
+};
+
+
+/*
+ * Fixed size structure in order to plant it in Union structure
+ */
+struct fcoe_abts_rsp_union {
+	u32 r_ctl;
+	u32 abts_rsp_payload[7];
+};
+
+
+/*
+ * 4 regs size
+ */
+struct fcoe_bd_ctx {
+	u32 buf_addr_hi;
+	u32 buf_addr_lo;
+#if defined(__BIG_ENDIAN)
+	u16 rsrv0;
+	u16 buf_len;
+#elif defined(__LITTLE_ENDIAN)
+	u16 buf_len;
+	u16 rsrv0;
+#endif
+#if defined(__BIG_ENDIAN)
+	u16 rsrv1;
+	u16 flags;
+#elif defined(__LITTLE_ENDIAN)
+	u16 flags;
+	u16 rsrv1;
+#endif
+};
+
+
+struct fcoe_cleanup_flow_info {
+#if defined(__BIG_ENDIAN)
+	u16 reserved1;
+	u16 task_id;
+#elif defined(__LITTLE_ENDIAN)
+	u16 task_id;
+	u16 reserved1;
+#endif
+	u32 reserved2[7];
+};
+
+
+struct fcoe_fcp_cmd_payload {
+	u32 opaque[8];
+};
+
+struct fcoe_fc_hdr {
+#if defined(__BIG_ENDIAN)
+	u8 cs_ctl;
+	u8 s_id[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 s_id[3];
+	u8 cs_ctl;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 r_ctl;
+	u8 d_id[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 d_id[3];
+	u8 r_ctl;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 seq_id;
+	u8 df_ctl;
+	u16 seq_cnt;
+#elif defined(__LITTLE_ENDIAN)
+	u16 seq_cnt;
+	u8 df_ctl;
+	u8 seq_id;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 type;
+	u8 f_ctl[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 f_ctl[3];
+	u8 type;
+#endif
+	u32 parameters;
+#if defined(__BIG_ENDIAN)
+	u16 ox_id;
+	u16 rx_id;
+#elif defined(__LITTLE_ENDIAN)
+	u16 rx_id;
+	u16 ox_id;
+#endif
+};
+
+struct fcoe_fc_frame {
+	struct fcoe_fc_hdr fc_hdr;
+	u32 reserved0[2];
+};
+
+union fcoe_cmd_flow_info {
+	struct fcoe_fcp_cmd_payload fcp_cmd_payload;
+	struct fcoe_fc_frame mp_fc_frame;
+};
+
+
+
+struct fcoe_fcp_rsp_flags {
+	u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0)
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1)
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ (0x1<<4)
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS (0x7<<5)
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
+};
+
+
+struct fcoe_fcp_rsp_payload {
+	struct regpair reserved0;
+	u32 fcp_resid;
+#if defined(__BIG_ENDIAN)
+	u16 retry_delay_timer;
+	struct fcoe_fcp_rsp_flags fcp_flags;
+	u8 scsi_status_code;
+#elif defined(__LITTLE_ENDIAN)
+	u8 scsi_status_code;
+	struct fcoe_fcp_rsp_flags fcp_flags;
+	u16 retry_delay_timer;
+#endif
+	u32 fcp_rsp_len;
+	u32 fcp_sns_len;
+};
+
+
+/*
+ * Fixed size structure in order to plant it in Union structure
+ */
+struct fcoe_fcp_rsp_union {
+	struct fcoe_fcp_rsp_payload payload;
+	struct regpair reserved0;
+};
+
+
+struct fcoe_fcp_xfr_rdy_payload {
+	u32 burst_len;
+	u32 data_ro;
+};
+
+struct fcoe_read_flow_info {
+	struct fcoe_fc_hdr fc_data_in_hdr;
+	u32 reserved[2];
+};
+
+struct fcoe_write_flow_info {
+	struct fcoe_fc_hdr fc_data_out_hdr;
+	struct fcoe_fcp_xfr_rdy_payload fcp_xfr_payload;
+};
+
+union fcoe_rsp_flow_info {
+	struct fcoe_fcp_rsp_union fcp_rsp;
+	struct fcoe_abts_rsp_union abts_rsp;
+};
+
+/*
+ * 32 bytes used for general purposes
+ */
+union fcoe_general_task_ctx {
+	union fcoe_cmd_flow_info cmd_info;
+	struct fcoe_read_flow_info read_info;
+	struct fcoe_write_flow_info write_info;
+	union fcoe_rsp_flow_info rsp_info;
+	struct fcoe_cleanup_flow_info cleanup_info;
+	u32 comp_info[8];
+};
+
+
+/*
+ * FCoE KCQ CQE parameters
+ */
+union fcoe_kcqe_params {
+	u32 reserved0[4];
+};
+
+/*
+ * FCoE KCQ CQE
+ */
+struct fcoe_kcqe {
+	u32 fcoe_conn_id;
+	u32 completion_status;
+	u32 fcoe_conn_context_id;
+	union fcoe_kcqe_params params;
+#if defined(__BIG_ENDIAN)
+	u8 flags;
+#define FCOE_KCQE_RESERVED0 (0x7<<0)
+#define FCOE_KCQE_RESERVED0_SHIFT 0
+#define FCOE_KCQE_RAMROD_COMPLETION (0x1<<3)
+#define FCOE_KCQE_RAMROD_COMPLETION_SHIFT 3
+#define FCOE_KCQE_LAYER_CODE (0x7<<4)
+#define FCOE_KCQE_LAYER_CODE_SHIFT 4
+#define FCOE_KCQE_LINKED_WITH_NEXT (0x1<<7)
+#define FCOE_KCQE_LINKED_WITH_NEXT_SHIFT 7
+	u8 op_code;
+	u16 qe_self_seq;
+#elif defined(__LITTLE_ENDIAN)
+	u16 qe_self_seq;
+	u8 op_code;
+	u8 flags;
+#define FCOE_KCQE_RESERVED0 (0x7<<0)
+#define FCOE_KCQE_RESERVED0_SHIFT 0
+#define FCOE_KCQE_RAMROD_COMPLETION (0x1<<3)
+#define FCOE_KCQE_RAMROD_COMPLETION_SHIFT 3
+#define FCOE_KCQE_LAYER_CODE (0x7<<4)
+#define FCOE_KCQE_LAYER_CODE_SHIFT 4
+#define FCOE_KCQE_LINKED_WITH_NEXT (0x1<<7)
+#define FCOE_KCQE_LINKED_WITH_NEXT_SHIFT 7
+#endif
+};
+
+/*
+ * FCoE KWQE header
+ */
+struct fcoe_kwqe_header {
+#if defined(__BIG_ENDIAN)
+	u8 flags;
+#define FCOE_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define FCOE_KWQE_HEADER_RESERVED0_SHIFT 0
+#define FCOE_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define FCOE_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define FCOE_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_HEADER_RESERVED1_SHIFT 7
+	u8 op_code;
+#elif defined(__LITTLE_ENDIAN)
+	u8 op_code;
+	u8 flags;
+#define FCOE_KWQE_HEADER_RESERVED0 (0xF<<0)
+#define FCOE_KWQE_HEADER_RESERVED0_SHIFT 0
+#define FCOE_KWQE_HEADER_LAYER_CODE (0x7<<4)
+#define FCOE_KWQE_HEADER_LAYER_CODE_SHIFT 4
+#define FCOE_KWQE_HEADER_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_HEADER_RESERVED1_SHIFT 7
+#endif
+};
+
+/*
+ * FCoE firmware init request 1
+ */
+struct fcoe_kwqe_init1 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 num_tasks;
+#elif defined(__LITTLE_ENDIAN)
+	u16 num_tasks;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 task_list_pbl_addr_lo;
+	u32 task_list_pbl_addr_hi;
+	u32 dummy_buffer_addr_lo;
+	u32 dummy_buffer_addr_hi;
+#if defined(__BIG_ENDIAN)
+	u16 rq_num_wqes;
+	u16 sq_num_wqes;
+#elif defined(__LITTLE_ENDIAN)
+	u16 sq_num_wqes;
+	u16 rq_num_wqes;
+#endif
+#if defined(__BIG_ENDIAN)
+	u16 cq_num_wqes;
+	u16 rq_buffer_log_size;
+#elif defined(__LITTLE_ENDIAN)
+	u16 rq_buffer_log_size;
+	u16 cq_num_wqes;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 flags;
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE (0xF<<0)
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT 0
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC (0x7<<4)
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC_SHIFT 4
+#define FCOE_KWQE_INIT1_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_INIT1_RESERVED1_SHIFT 7
+	u8 num_sessions_log;
+	u16 mtu;
+#elif defined(__LITTLE_ENDIAN)
+	u16 mtu;
+	u8 num_sessions_log;
+	u8 flags;
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE (0xF<<0)
+#define FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT 0
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC (0x7<<4)
+#define FCOE_KWQE_INIT1_LOG_CACHED_PBES_PER_FUNC_SHIFT 4
+#define FCOE_KWQE_INIT1_RESERVED1 (0x1<<7)
+#define FCOE_KWQE_INIT1_RESERVED1_SHIFT 7
+#endif
+};
+
+/*
+ * FCoE firmware init request 2
+ */
+struct fcoe_kwqe_init2 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+	u16 reserved0;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 hash_tbl_pbl_addr_lo;
+	u32 hash_tbl_pbl_addr_hi;
+	u32 t2_hash_tbl_addr_lo;
+	u32 t2_hash_tbl_addr_hi;
+	u32 t2_ptr_hash_tbl_addr_lo;
+	u32 t2_ptr_hash_tbl_addr_hi;
+	u32 free_list_count;
+};
+
+/*
+ * FCoE firmware init request 3
+ */
+struct fcoe_kwqe_init3 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+	u16 reserved0;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 error_bit_map_lo;
+	u32 error_bit_map_hi;
+#if defined(__BIG_ENDIAN)
+	u8 reserved21[3];
+	u8 cached_session_enable;
+#elif defined(__LITTLE_ENDIAN)
+	u8 cached_session_enable;
+	u8 reserved21[3];
+#endif
+	u32 reserved2[4];
+};
+
+/*
+ * FCoE connection offload request 1
+ */
+struct fcoe_kwqe_conn_offload1 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 fcoe_conn_id;
+#elif defined(__LITTLE_ENDIAN)
+	u16 fcoe_conn_id;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 sq_addr_lo;
+	u32 sq_addr_hi;
+	u32 rq_pbl_addr_lo;
+	u32 rq_pbl_addr_hi;
+	u32 rq_first_pbe_addr_lo;
+	u32 rq_first_pbe_addr_hi;
+#if defined(__BIG_ENDIAN)
+	u16 reserved0;
+	u16 rq_prod;
+#elif defined(__LITTLE_ENDIAN)
+	u16 rq_prod;
+	u16 reserved0;
+#endif
+};
+
+/*
+ * FCoE connection offload request 2
+ */
+struct fcoe_kwqe_conn_offload2 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 tx_max_fc_pay_len;
+#elif defined(__LITTLE_ENDIAN)
+	u16 tx_max_fc_pay_len;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 cq_addr_lo;
+	u32 cq_addr_hi;
+	u32 xferq_addr_lo;
+	u32 xferq_addr_hi;
+	u32 conn_db_addr_lo;
+	u32 conn_db_addr_hi;
+	u32 reserved1;
+};
+
+/*
+ * FCoE connection offload request 3
+ */
+struct fcoe_kwqe_conn_offload3 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 vlan_tag;
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT 13
+#elif defined(__LITTLE_ENDIAN)
+	u16 vlan_tag;
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_OFFLOAD3_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT 13
+	struct fcoe_kwqe_header hdr;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 tx_max_conc_seqs_c3;
+	u8 s_id[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 s_id[3];
+	u8 tx_max_conc_seqs_c3;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 flags;
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS (0x1<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES (0x1<<1)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT 1
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT (0x1<<2)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT 2
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ (0x1<<3)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT 3
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID (0x1<<4)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT 4
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID (0x1<<5)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID_SHIFT 5
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0 (0x1<<6)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0_SHIFT 6
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG (0x1<<7)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT 7
+	u8 d_id[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 d_id[3];
+	u8 flags;
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS (0x1<<0)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT 0
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES (0x1<<1)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT 1
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT (0x1<<2)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT 2
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ (0x1<<3)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT 3
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID (0x1<<4)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT 4
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID (0x1<<5)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_C2_VALID_SHIFT 5
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0 (0x1<<6)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_ACK_0_SHIFT 6
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG (0x1<<7)
+#define FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT 7
+#endif
+	u32 reserved;
+	u32 confq_first_pbe_addr_lo;
+	u32 confq_first_pbe_addr_hi;
+#if defined(__BIG_ENDIAN)
+	u16 rx_max_fc_pay_len;
+	u16 tx_total_conc_seqs;
+#elif defined(__LITTLE_ENDIAN)
+	u16 tx_total_conc_seqs;
+	u16 rx_max_fc_pay_len;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 rx_open_seqs_exch_c3;
+	u8 rx_max_conc_seqs_c3;
+	u16 rx_total_conc_seqs;
+#elif defined(__LITTLE_ENDIAN)
+	u16 rx_total_conc_seqs;
+	u8 rx_max_conc_seqs_c3;
+	u8 rx_open_seqs_exch_c3;
+#endif
+};
+
+/*
+ * FCoE connection offload request 4
+ */
+struct fcoe_kwqe_conn_offload4 {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u8 reserved2;
+	u8 e_d_tov_timer_val;
+#elif defined(__LITTLE_ENDIAN)
+	u8 e_d_tov_timer_val;
+	u8 reserved2;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u8 src_mac_addr_lo32[4];
+#if defined(__BIG_ENDIAN)
+	u8 dst_mac_addr_hi16[2];
+	u8 src_mac_addr_hi16[2];
+#elif defined(__LITTLE_ENDIAN)
+	u8 src_mac_addr_hi16[2];
+	u8 dst_mac_addr_hi16[2];
+#endif
+	u8 dst_mac_addr_lo32[4];
+	u32 lcq_addr_lo;
+	u32 lcq_addr_hi;
+	u32 confq_pbl_base_addr_lo;
+	u32 confq_pbl_base_addr_hi;
+};
+
+/*
+ * FCoE connection enable request
+ */
+struct fcoe_kwqe_conn_enable_disable {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+	u16 reserved0;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u8 src_mac_addr_lo32[4];
+#if defined(__BIG_ENDIAN)
+	u16 vlan_tag;
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT 13
+	u8 src_mac_addr_hi16[2];
+#elif defined(__LITTLE_ENDIAN)
+	u8 src_mac_addr_hi16[2];
+	u16 vlan_tag;
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID (0xFFF<<0)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT 0
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI (0x1<<12)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_CFI_SHIFT 12
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY (0x7<<13)
+#define FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT 13
+#endif
+	u8 dst_mac_addr_lo32[4];
+#if defined(__BIG_ENDIAN)
+	u16 reserved1;
+	u8 dst_mac_addr_hi16[2];
+#elif defined(__LITTLE_ENDIAN)
+	u8 dst_mac_addr_hi16[2];
+	u16 reserved1;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 vlan_flag;
+	u8 s_id[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 s_id[3];
+	u8 vlan_flag;
+#endif
+#if defined(__BIG_ENDIAN)
+	u8 reserved3;
+	u8 d_id[3];
+#elif defined(__LITTLE_ENDIAN)
+	u8 d_id[3];
+	u8 reserved3;
+#endif
+	u32 context_id;
+	u32 conn_id;
+	u32 reserved4;
+};
+
+/*
+ * FCoE connection destroy request
+ */
+struct fcoe_kwqe_conn_destroy {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+	u16 reserved0;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 context_id;
+	u32 conn_id;
+	u32 reserved1[5];
+};
+
+/*
+ * FCoe destroy request
+ */
+struct fcoe_kwqe_destroy {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+	u16 reserved0;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 reserved1[7];
+};
+
+/*
+ * FCoe statistics request
+ */
+struct fcoe_kwqe_stat {
+#if defined(__BIG_ENDIAN)
+	struct fcoe_kwqe_header hdr;
+	u16 reserved0;
+#elif defined(__LITTLE_ENDIAN)
+	u16 reserved0;
+	struct fcoe_kwqe_header hdr;
+#endif
+	u32 stat_params_addr_lo;
+	u32 stat_params_addr_hi;
+	u32 reserved1[5];
+};
+
+/*
+ * FCoE KWQ WQE
+ */
+union fcoe_kwqe {
+	struct fcoe_kwqe_init1 init1;
+	struct fcoe_kwqe_init2 init2;
+	struct fcoe_kwqe_init3 init3;
+	struct fcoe_kwqe_conn_offload1 conn_offload1;
+	struct fcoe_kwqe_conn_offload2 conn_offload2;
+	struct fcoe_kwqe_conn_offload3 conn_offload3;
+	struct fcoe_kwqe_conn_offload4 conn_offload4;
+	struct fcoe_kwqe_conn_enable_disable conn_enable_disable;
+	struct fcoe_kwqe_conn_destroy conn_destroy;
+	struct fcoe_kwqe_destroy destroy;
+	struct fcoe_kwqe_stat statistics;
+};
+
+struct fcoe_mul_sges_ctx {
+	struct regpair cur_sge_addr;
+#if defined(__BIG_ENDIAN)
+	u8 sgl_size;
+	u8 cur_sge_idx;
+	u16 cur_sge_off;
+#elif defined(__LITTLE_ENDIAN)
+	u16 cur_sge_off;
+	u8 cur_sge_idx;
+	u8 sgl_size;
+#endif
+};
+
+struct fcoe_s_stat_ctx {
+	u8 flags;
+#define FCOE_S_STAT_CTX_ACTIVE (0x1<<0)
+#define FCOE_S_STAT_CTX_ACTIVE_SHIFT 0
+#define FCOE_S_STAT_CTX_ACK_ABORT_SEQ_COND (0x1<<1)
+#define FCOE_S_STAT_CTX_ACK_ABORT_SEQ_COND_SHIFT 1
+#define FCOE_S_STAT_CTX_ABTS_PERFORMED (0x1<<2)
+#define FCOE_S_STAT_CTX_ABTS_PERFORMED_SHIFT 2
+#define FCOE_S_STAT_CTX_SEQ_TIMEOUT (0x1<<3)
+#define FCOE_S_STAT_CTX_SEQ_TIMEOUT_SHIFT 3
+#define FCOE_S_STAT_CTX_P_RJT (0x1<<4)
+#define FCOE_S_STAT_CTX_P_RJT_SHIFT 4
+#define FCOE_S_STAT_CTX_ACK_EOFT (0x1<<5)
+#define FCOE_S_STAT_CTX_ACK_EOFT_SHIFT 5
+#define FCOE_S_STAT_CTX_RSRV1 (0x3<<6)
+#define FCOE_S_STAT_CTX_RSRV1_SHIFT 6
+};
+
+struct fcoe_seq_ctx {
+#if defined(__BIG_ENDIAN)
+	u16 low_seq_cnt;
+	struct fcoe_s_stat_ctx s_stat;
+	u8 seq_id;
+#elif defined(__LITTLE_ENDIAN)
+	u8 seq_id;
+	struct fcoe_s_stat_ctx s_stat;
+	u16 low_seq_cnt;
+#endif
+#if defined(__BIG_ENDIAN)
+	u16 err_seq_cnt;
+	u16 high_seq_cnt;
+#elif defined(__LITTLE_ENDIAN)
+	u16 high_seq_cnt;
+	u16 err_seq_cnt;
+#endif
+	u32 low_exp_ro;
+	u32 high_exp_ro;
+};
+
+
+struct fcoe_single_sge_ctx {
+	struct regpair cur_buf_addr;
+#if defined(__BIG_ENDIAN)
+	u16 reserved0;
+	u16 cur_buf_rem;
+#elif defined(__LITTLE_ENDIAN)
+	u16 cur_buf_rem;
+	u16 reserved0;
+#endif
+};
+
+union fcoe_sgl_ctx {
+	struct fcoe_single_sge_ctx single_sge;
+	struct fcoe_mul_sges_ctx mul_sges;
+};
+
+
+
+/*
+ * FCoE SQ element
+ */
+struct fcoe_sqe {
+	u16 wqe;
+#define FCOE_SQE_TASK_ID (0x7FFF<<0)
+#define FCOE_SQE_TASK_ID_SHIFT 0
+#define FCOE_SQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_SQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+
+struct fcoe_task_ctx_entry_tx_only {
+	union fcoe_sgl_ctx sgl_ctx;
+};
+
+struct fcoe_task_ctx_entry_txwr_rxrd {
+#if defined(__BIG_ENDIAN)
+	u16 verify_tx_seq;
+	u8 init_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE (0x7<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE (0x1<<3)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT 3
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE (0x1<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE (0x1<<5)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE_SHIFT 5
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5 (0x3<<6)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5_SHIFT 6
+	u8 tx_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4 (0xF<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4_SHIFT 4
+#elif defined(__LITTLE_ENDIAN)
+	u8 tx_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4 (0xF<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV4_SHIFT 4
+	u8 init_flags;
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE (0x7<<0)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE (0x1<<3)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT 3
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE (0x1<<4)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE (0x1<<5)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE_SHIFT 5
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5 (0x3<<6)
+#define FCOE_TASK_CTX_ENTRY_TXWR_RXRD_RSRV5_SHIFT 6
+	u16 verify_tx_seq;
+#endif
+};
+
+/*
+ * Common section. Both TX and RX processing might write and read from it in
+ * different flows
+ */
+struct fcoe_task_ctx_entry_tx_rx_cmn {
+	u32 data_2_trns;
+	union fcoe_general_task_ctx general;
+#if defined(__BIG_ENDIAN)
+	u16 tx_low_seq_cnt;
+	struct fcoe_s_stat_ctx tx_s_stat;
+	u8 tx_seq_id;
+#elif defined(__LITTLE_ENDIAN)
+	u8 tx_seq_id;
+	struct fcoe_s_stat_ctx tx_s_stat;
+	u16 tx_low_seq_cnt;
+#endif
+	u32 common_flags;
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID (0xFFFFFF<<0)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID (0x1<<24)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID_SHIFT 24
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_SEQ_INIT (0x1<<25)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_SEQ_INIT_SHIFT 25
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_XFER (0x1<<26)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_XFER_SHIFT 26
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_CONF (0x1<<27)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_PEND_CONF_SHIFT 27
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME (0x1<<28)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME_SHIFT 28
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_RSRV (0x7<<29)
+#define FCOE_TASK_CTX_ENTRY_TX_RX_CMN_RSRV_SHIFT 29
+};
+
+struct fcoe_task_ctx_entry_rxwr_txrd {
+#if defined(__BIG_ENDIAN)
+	u16 rx_id;
+	u16 rx_flags;
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE (0x7<<4)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ (0x1<<7)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ_SHIFT 7
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME (0x1<<8)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME_SHIFT 8
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0 (0x7F<<9)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0_SHIFT 9
+#elif defined(__LITTLE_ENDIAN)
+	u16 rx_flags;
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE (0xF<<0)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE_SHIFT 0
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE (0x7<<4)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE_SHIFT 4
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ (0x1<<7)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_CONF_REQ_SHIFT 7
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME (0x1<<8)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_MISS_FRAME_SHIFT 8
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0 (0x7F<<9)
+#define FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RESERVED0_SHIFT 9
+	u16 rx_id;
+#endif
+};
+
+struct fcoe_task_ctx_entry_rx_only {
+	struct fcoe_seq_ctx seq_ctx;
+	struct fcoe_seq_ctx ooo_seq_ctx;
+	u32 rsrv3;
+	union fcoe_sgl_ctx sgl_ctx;
+};
+
+struct fcoe_task_ctx_entry {
+	struct fcoe_task_ctx_entry_tx_only tx_wr_only;
+	struct fcoe_task_ctx_entry_txwr_rxrd tx_wr_rx_rd;
+	struct fcoe_task_ctx_entry_tx_rx_cmn cmn;
+	struct fcoe_task_ctx_entry_rxwr_txrd rx_wr_tx_rd;
+	struct fcoe_task_ctx_entry_rx_only rx_wr_only;
+	u32 reserved[4];
+};
+
+
+/*
+ * FCoE XFRQ element
+ */
+struct fcoe_xfrqe {
+	u16 wqe;
+#define FCOE_XFRQE_TASK_ID (0x7FFF<<0)
+#define FCOE_XFRQE_TASK_ID_SHIFT 0
+#define FCOE_XFRQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_XFRQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE CONFQ element
+ */
+struct fcoe_confqe {
+#if defined(__BIG_ENDIAN)
+	u16 rx_id;
+	u16 ox_id;
+#elif defined(__LITTLE_ENDIAN)
+	u16 ox_id;
+	u16 rx_id;
+#endif
+	u32 param;
+};
+
+
+/*
+ * FCoE conection data base
+ */
+struct fcoe_conn_db {
+#if defined(__BIG_ENDIAN)
+	u16 rsrv0;
+	u16 rq_prod;
+#elif defined(__LITTLE_ENDIAN)
+	u16 rq_prod;
+	u16 rsrv0;
+#endif
+	u32 rsrv1;
+	struct regpair cq_arm;
+};
+
+
+/*
+ * FCoE CQ element
+ */
+struct fcoe_cqe {
+	u16 wqe;
+#define FCOE_CQE_CQE_INFO (0x3FFF<<0)
+#define FCOE_CQE_CQE_INFO_SHIFT 0
+#define FCOE_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE error/warning resporting entry
+ */
+struct fcoe_err_report_entry {
+	u32 err_warn_bitmap_lo;
+	u32 err_warn_bitmap_hi;
+	u32 tx_buf_off;
+	u32 rx_buf_off;
+	struct fcoe_fc_hdr fc_hdr;
+};
+
+
+/*
+ * FCoE hash table entry (32 bytes)
+ */
+struct fcoe_hash_table_entry {
+#if defined(__BIG_ENDIAN)
+	u8 d_id_0;
+	u8 s_id_2;
+	u8 s_id_1;
+	u8 s_id_0;
+#elif defined(__LITTLE_ENDIAN)
+	u8 s_id_0;
+	u8 s_id_1;
+	u8 s_id_2;
+	u8 d_id_0;
+#endif
+#if defined(__BIG_ENDIAN)
+	u16 dst_mac_addr_hi;
+	u8 d_id_2;
+	u8 d_id_1;
+#elif defined(__LITTLE_ENDIAN)
+	u8 d_id_1;
+	u8 d_id_2;
+	u16 dst_mac_addr_hi;
+#endif
+	u32 dst_mac_addr_lo;
+#if defined(__BIG_ENDIAN)
+	u16 vlan_id;
+	u16 src_mac_addr_hi;
+#elif defined(__LITTLE_ENDIAN)
+	u16 src_mac_addr_hi;
+	u16 vlan_id;
+#endif
+	u32 src_mac_addr_lo;
+#if defined(__BIG_ENDIAN)
+	u16 reserved1;
+	u8 reserved0;
+	u8 vlan_flag;
+#elif defined(__LITTLE_ENDIAN)
+	u8 vlan_flag;
+	u8 reserved0;
+	u16 reserved1;
+#endif
+	u32 reserved2;
+	u32 field_id;
+#define FCOE_HASH_TABLE_ENTRY_CID (0xFFFFFF<<0)
+#define FCOE_HASH_TABLE_ENTRY_CID_SHIFT 0
+#define FCOE_HASH_TABLE_ENTRY_RESERVED3 (0x7F<<24)
+#define FCOE_HASH_TABLE_ENTRY_RESERVED3_SHIFT 24
+#define FCOE_HASH_TABLE_ENTRY_VALID (0x1<<31)
+#define FCOE_HASH_TABLE_ENTRY_VALID_SHIFT 31
+};
+
+/*
+ * FCoE pending work request CQE
+ */
+struct fcoe_pend_wq_cqe {
+	u16 wqe;
+#define FCOE_PEND_WQ_CQE_TASK_ID (0x3FFF<<0)
+#define FCOE_PEND_WQ_CQE_TASK_ID_SHIFT 0
+#define FCOE_PEND_WQ_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_PEND_WQ_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_PEND_WQ_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_PEND_WQ_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+/*
+ * FCoE RX statistics parameters section#0
+ */
+struct fcoe_rx_stat_params_section0 {
+	u32 fcoe_ver_cnt;
+	u32 fcoe_rx_pkt_cnt;
+	u32 fcoe_rx_byte_cnt;
+	u32 fcoe_rx_drop_pkt_cnt;
+};
+
+
+/*
+ * FCoE RX statistics parameters section#1
+ */
+struct fcoe_rx_stat_params_section1 {
+	u32 fc_crc_cnt;
+	u32 eofa_del_cnt;
+	u32 miss_frame_cnt;
+	u32 seq_timeout_cnt;
+	u32 drop_seq_cnt;
+	u32 fcoe_rx_drop_pkt_cnt;
+	u32 fcp_rx_pkt_cnt;
+	u32 reserved0;
+};
+
+
+/*
+ * FCoE TX statistics parameters
+ */
+struct fcoe_tx_stat_params {
+	u32 fcoe_tx_pkt_cnt;
+	u32 fcoe_tx_byte_cnt;
+	u32 fcp_tx_pkt_cnt;
+	u32 reserved0;
+};
+
+/*
+ * FCoE statistics parameters
+ */
+struct fcoe_statistics_params {
+	struct fcoe_tx_stat_params tx_stat;
+	struct fcoe_rx_stat_params_section0 rx_stat0;
+	struct fcoe_rx_stat_params_section1 rx_stat1;
+};
+
+
+/*
+ * FCoE t2 hash table entry (64 bytes)
+ */
+struct fcoe_t2_hash_table_entry {
+	struct fcoe_hash_table_entry data;
+	struct regpair next;
+	struct regpair reserved0[3];
+};
+
+/*
+ * FCoE unsolicited CQE
+ */
+struct fcoe_unsolicited_cqe {
+	u16 wqe;
+#define FCOE_UNSOLICITED_CQE_SUBTYPE (0x3<<0)
+#define FCOE_UNSOLICITED_CQE_SUBTYPE_SHIFT 0
+#define FCOE_UNSOLICITED_CQE_PKT_LEN (0xFFF<<2)
+#define FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT 2
+#define FCOE_UNSOLICITED_CQE_CQE_TYPE (0x1<<14)
+#define FCOE_UNSOLICITED_CQE_CQE_TYPE_SHIFT 14
+#define FCOE_UNSOLICITED_CQE_TOGGLE_BIT (0x1<<15)
+#define FCOE_UNSOLICITED_CQE_TOGGLE_BIT_SHIFT 15
+};
+
+
+
+#endif /* __57XX_FCOE_HSI_LINUX_LE__ */

drivers/scsi/bnx2fc/Kconfig

@@ -0,0 +1,11 @@
+config SCSI_BNX2X_FCOE
+	tristate "Broadcom NetXtreme II FCoE support"
+	depends on PCI
+	select NETDEVICES
+	select NETDEV_1000
+	select LIBFC
+	select LIBFCOE
+	select CNIC
+	---help---
+	This driver supports FCoE offload for the Broadcom NetXtreme II
+	devices.

drivers/scsi/bnx2fc/Makefile

@@ -0,0 +1,3 @@
+obj-$(CONFIG_SCSI_BNX2X_FCOE) += bnx2fc.o
+
+bnx2fc-y := bnx2fc_els.o bnx2fc_fcoe.o bnx2fc_hwi.o bnx2fc_io.o bnx2fc_tgt.o

drivers/scsi/bnx2fc/bnx2fc.h

@@ -0,0 +1,511 @@
+#ifndef _BNX2FC_H_
+#define _BNX2FC_H_
+/* bnx2fc.h: Broadcom NetXtreme II Linux FCoE offload driver.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/kthread.h>
+#include <linux/crc32.h>
+#include <linux/cpu.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/io.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/libfc.h>
+#include <scsi/libfcoe.h>
+#include <scsi/fc_encode.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fc2.h>
+#include <scsi/fc_frame.h>
+#include <scsi/fc/fc_fcoe.h>
+#include <scsi/fc/fc_fcp.h>
+
+#include "57xx_hsi_bnx2fc.h"
+#include "bnx2fc_debug.h"
+#include "../../net/cnic_if.h"
+#include "bnx2fc_constants.h"
+
+#define BNX2FC_NAME		"bnx2fc"
+#define BNX2FC_VERSION		"1.0.0"
+
+#define PFX			"bnx2fc: "
+
+#define BNX2X_DOORBELL_PCI_BAR		2
+
+#define BNX2FC_MAX_BD_LEN		0xffff
+#define BNX2FC_BD_SPLIT_SZ		0x8000
+#define BNX2FC_MAX_BDS_PER_CMD		256
+
+#define BNX2FC_SQ_WQES_MAX	256
+
+#define BNX2FC_SCSI_MAX_SQES	((3 * BNX2FC_SQ_WQES_MAX) / 8)
+#define BNX2FC_TM_MAX_SQES	((BNX2FC_SQ_WQES_MAX) / 2)
+#define BNX2FC_ELS_MAX_SQES	(BNX2FC_TM_MAX_SQES - 1)
+
+#define BNX2FC_RQ_WQES_MAX	16
+#define BNX2FC_CQ_WQES_MAX	(BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
+
+#define BNX2FC_NUM_MAX_SESS	128
+#define BNX2FC_NUM_MAX_SESS_LOG	(ilog2(BNX2FC_NUM_MAX_SESS))
+
+#define BNX2FC_MAX_OUTSTANDING_CMNDS	4096
+#define BNX2FC_MIN_PAYLOAD		256
+#define BNX2FC_MAX_PAYLOAD		2048
+
+#define BNX2FC_RQ_BUF_SZ		256
+#define BNX2FC_RQ_BUF_LOG_SZ		(ilog2(BNX2FC_RQ_BUF_SZ))
+
+#define BNX2FC_SQ_WQE_SIZE		(sizeof(struct fcoe_sqe))
+#define BNX2FC_CQ_WQE_SIZE		(sizeof(struct fcoe_cqe))
+#define BNX2FC_RQ_WQE_SIZE		(BNX2FC_RQ_BUF_SZ)
+#define BNX2FC_XFERQ_WQE_SIZE		(sizeof(struct fcoe_xfrqe))
+#define BNX2FC_CONFQ_WQE_SIZE		(sizeof(struct fcoe_confqe))
+#define BNX2FC_5771X_DB_PAGE_SIZE	128
+
+#define BNX2FC_MAX_TASKS		BNX2FC_MAX_OUTSTANDING_CMNDS
+#define BNX2FC_TASK_SIZE		128
+#define	BNX2FC_TASKS_PER_PAGE		(PAGE_SIZE/BNX2FC_TASK_SIZE)
+#define BNX2FC_TASK_CTX_ARR_SZ		(BNX2FC_MAX_TASKS/BNX2FC_TASKS_PER_PAGE)
+
+#define BNX2FC_MAX_ROWS_IN_HASH_TBL	8
+#define BNX2FC_HASH_TBL_CHUNK_SIZE	(16 * 1024)
+
+#define BNX2FC_MAX_SEQS			255
+
+#define BNX2FC_READ			(1 << 1)
+#define BNX2FC_WRITE			(1 << 0)
+
+#define BNX2FC_MIN_XID			0
+#define BNX2FC_MAX_XID			(BNX2FC_MAX_OUTSTANDING_CMNDS - 1)
+#define FCOE_MIN_XID			(BNX2FC_MAX_OUTSTANDING_CMNDS)
+#define FCOE_MAX_XID		\
+			(BNX2FC_MAX_OUTSTANDING_CMNDS + (nr_cpu_ids * 256))
+#define BNX2FC_MAX_LUN			0xFFFF
+#define BNX2FC_MAX_FCP_TGT		256
+#define BNX2FC_MAX_CMD_LEN		16
+
+#define BNX2FC_TM_TIMEOUT		60	/* secs */
+#define BNX2FC_IO_TIMEOUT		20000UL	/* msecs */
+
+#define BNX2FC_WAIT_CNT			120
+#define BNX2FC_FW_TIMEOUT		(3 * HZ)
+
+#define PORT_MAX			2
+
+#define CMD_SCSI_STATUS(Cmnd)		((Cmnd)->SCp.Status)
+
+/* FC FCP Status */
+#define	FC_GOOD				0
+
+#define BNX2FC_RNID_HBA			0x7
+
+/* bnx2fc driver uses only one instance of fcoe_percpu_s */
+extern struct fcoe_percpu_s bnx2fc_global;
+
+extern struct workqueue_struct *bnx2fc_wq;
+
+struct bnx2fc_percpu_s {
+	struct task_struct *iothread;
+	struct list_head work_list;
+	spinlock_t fp_work_lock;
+};
+
+
+struct bnx2fc_hba {
+	struct list_head link;
+	struct cnic_dev *cnic;
+	struct pci_dev *pcidev;
+	struct net_device *netdev;
+	struct net_device *phys_dev;
+	unsigned long reg_with_cnic;
+		#define BNX2FC_CNIC_REGISTERED           1
+	struct packet_type fcoe_packet_type;
+	struct packet_type fip_packet_type;
+	struct bnx2fc_cmd_mgr *cmd_mgr;
+	struct workqueue_struct *timer_work_queue;
+	struct kref kref;
+	spinlock_t hba_lock;
+	struct mutex hba_mutex;
+	unsigned long adapter_state;
+		#define ADAPTER_STATE_UP		0
+		#define ADAPTER_STATE_GOING_DOWN	1
+		#define ADAPTER_STATE_LINK_DOWN		2
+		#define ADAPTER_STATE_READY		3
+	u32 flags;
+	unsigned long init_done;
+		#define BNX2FC_FW_INIT_DONE		0
+		#define BNX2FC_CTLR_INIT_DONE		1
+		#define BNX2FC_CREATE_DONE		2
+	struct fcoe_ctlr ctlr;
+	u8 vlan_enabled;
+	int vlan_id;
+	u32 next_conn_id;
+	struct fcoe_task_ctx_entry **task_ctx;
+	dma_addr_t *task_ctx_dma;
+	struct regpair *task_ctx_bd_tbl;
+	dma_addr_t task_ctx_bd_dma;
+
+	int hash_tbl_segment_count;
+	void **hash_tbl_segments;
+	void *hash_tbl_pbl;
+	dma_addr_t hash_tbl_pbl_dma;
+	struct fcoe_t2_hash_table_entry *t2_hash_tbl;
+	dma_addr_t t2_hash_tbl_dma;
+	char *t2_hash_tbl_ptr;
+	dma_addr_t t2_hash_tbl_ptr_dma;
+
+	char *dummy_buffer;
+	dma_addr_t dummy_buf_dma;
+
+	struct fcoe_statistics_params *stats_buffer;
+	dma_addr_t stats_buf_dma;
+
+	/*
+	 * PCI related info.
+	 */
+	u16 pci_did;
+	u16 pci_vid;
+	u16 pci_sdid;
+	u16 pci_svid;
+	u16 pci_func;
+	u16 pci_devno;
+
+	struct task_struct *l2_thread;
+
+	/* linkdown handling */
+	wait_queue_head_t shutdown_wait;
+	int wait_for_link_down;
+
+	/*destroy handling */
+	struct timer_list destroy_timer;
+	wait_queue_head_t destroy_wait;
+
+	/* Active list of offloaded sessions */
+	struct bnx2fc_rport *tgt_ofld_list[BNX2FC_NUM_MAX_SESS];
+	int num_ofld_sess;
+
+	/* statistics */
+	struct completion stat_req_done;
+};
+
+#define bnx2fc_from_ctlr(fip) container_of(fip, struct bnx2fc_hba, ctlr)
+
+struct bnx2fc_cmd_mgr {
+	struct bnx2fc_hba *hba;
+	u16 next_idx;
+	struct list_head *free_list;
+	spinlock_t *free_list_lock;
+	struct io_bdt **io_bdt_pool;
+	struct bnx2fc_cmd **cmds;
+};
+
+struct bnx2fc_rport {
+	struct fcoe_port *port;
+	struct fc_rport *rport;
+	struct fc_rport_priv *rdata;
+	void __iomem *ctx_base;
+#define DPM_TRIGER_TYPE		0x40
+	u32 fcoe_conn_id;
+	u32 context_id;
+	u32 sid;
+
+	unsigned long flags;
+#define BNX2FC_FLAG_SESSION_READY	0x1
+#define BNX2FC_FLAG_OFFLOADED		0x2
+#define BNX2FC_FLAG_DISABLED		0x3
+#define BNX2FC_FLAG_DESTROYED		0x4
+#define BNX2FC_FLAG_OFLD_REQ_CMPL	0x5
+#define BNX2FC_FLAG_DESTROY_CMPL	0x6
+#define BNX2FC_FLAG_CTX_ALLOC_FAILURE	0x7
+#define BNX2FC_FLAG_UPLD_REQ_COMPL	0x8
+#define BNX2FC_FLAG_EXPL_LOGO		0x9
+
+	u32 max_sqes;
+	u32 max_rqes;
+	u32 max_cqes;
+
+	struct fcoe_sqe *sq;
+	dma_addr_t sq_dma;
+	u16 sq_prod_idx;
+	u8 sq_curr_toggle_bit;
+	u32 sq_mem_size;
+
+	struct fcoe_cqe *cq;
+	dma_addr_t cq_dma;
+	u32 cq_cons_idx;
+	u8 cq_curr_toggle_bit;
+	u32 cq_mem_size;
+
+	void *rq;
+	dma_addr_t rq_dma;
+	u32 rq_prod_idx;
+	u32 rq_cons_idx;
+	u32 rq_mem_size;
+
+	void *rq_pbl;
+	dma_addr_t rq_pbl_dma;
+	u32 rq_pbl_size;
+
+	struct fcoe_xfrqe *xferq;
+	dma_addr_t xferq_dma;
+	u32 xferq_mem_size;
+
+	struct fcoe_confqe *confq;
+	dma_addr_t confq_dma;
+	u32 confq_mem_size;
+
+	void *confq_pbl;
+	dma_addr_t confq_pbl_dma;
+	u32 confq_pbl_size;
+
+	struct fcoe_conn_db *conn_db;
+	dma_addr_t conn_db_dma;
+	u32 conn_db_mem_size;
+
+	struct fcoe_sqe *lcq;
+	dma_addr_t lcq_dma;
+	u32 lcq_mem_size;
+
+	void *ofld_req[4];
+	dma_addr_t ofld_req_dma[4];
+	void *enbl_req;
+	dma_addr_t enbl_req_dma;
+
+	spinlock_t tgt_lock;
+	spinlock_t cq_lock;
+	atomic_t num_active_ios;
+	u32 flush_in_prog;
+	unsigned long work_time_slice;
+	unsigned long timestamp;
+	struct list_head free_task_list;
+	struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
+	atomic_t pi;
+	atomic_t ci;
+	struct list_head active_cmd_queue;
+	struct list_head els_queue;
+	struct list_head io_retire_queue;
+	struct list_head active_tm_queue;
+
+	struct timer_list ofld_timer;
+	wait_queue_head_t ofld_wait;
+
+	struct timer_list upld_timer;
+	wait_queue_head_t upld_wait;
+};
+
+struct bnx2fc_mp_req {
+	u8 tm_flags;
+
+	u32 req_len;
+	void *req_buf;
+	dma_addr_t req_buf_dma;
+	struct fcoe_bd_ctx *mp_req_bd;
+	dma_addr_t mp_req_bd_dma;
+	struct fc_frame_header req_fc_hdr;
+
+	u32 resp_len;
+	void *resp_buf;
+	dma_addr_t resp_buf_dma;
+	struct fcoe_bd_ctx *mp_resp_bd;
+	dma_addr_t mp_resp_bd_dma;
+	struct fc_frame_header resp_fc_hdr;
+};
+
+struct bnx2fc_els_cb_arg {
+	struct bnx2fc_cmd *aborted_io_req;
+	struct bnx2fc_cmd *io_req;
+	u16 l2_oxid;
+};
+
+/* bnx2fc command structure */
+struct bnx2fc_cmd {
+	struct list_head link;
+	u8 on_active_queue;
+	u8 on_tmf_queue;
+	u8 cmd_type;
+#define BNX2FC_SCSI_CMD		1
+#define BNX2FC_TASK_MGMT_CMD		2
+#define BNX2FC_ABTS			3
+#define BNX2FC_ELS			4
+#define BNX2FC_CLEANUP			5
+	u8 io_req_flags;
+	struct kref refcount;
+	struct fcoe_port *port;
+	struct bnx2fc_rport *tgt;
+	struct scsi_cmnd *sc_cmd;
+	struct bnx2fc_cmd_mgr *cmd_mgr;
+	struct bnx2fc_mp_req mp_req;
+	void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
+	struct bnx2fc_els_cb_arg *cb_arg;
+	struct delayed_work timeout_work; /* timer for ULP timeouts */
+	struct completion tm_done;
+	int wait_for_comp;
+	u16 xid;
+	struct fcoe_task_ctx_entry *task;
+	struct io_bdt *bd_tbl;
+	struct fcp_rsp *rsp;
+	size_t data_xfer_len;
+	unsigned long req_flags;
+#define BNX2FC_FLAG_ISSUE_RRQ		0x1
+#define BNX2FC_FLAG_ISSUE_ABTS		0x2
+#define BNX2FC_FLAG_ABTS_DONE		0x3
+#define BNX2FC_FLAG_TM_COMPL		0x4
+#define BNX2FC_FLAG_TM_TIMEOUT		0x5
+#define BNX2FC_FLAG_IO_CLEANUP		0x6
+#define BNX2FC_FLAG_RETIRE_OXID		0x7
+#define	BNX2FC_FLAG_EH_ABORT		0x8
+#define BNX2FC_FLAG_IO_COMPL		0x9
+#define BNX2FC_FLAG_ELS_DONE		0xa
+#define BNX2FC_FLAG_ELS_TIMEOUT		0xb
+	u32 fcp_resid;
+	u32 fcp_rsp_len;
+	u32 fcp_sns_len;
+	u8 cdb_status; /* SCSI IO status */
+	u8 fcp_status; /* FCP IO status */
+	u8 fcp_rsp_code;
+	u8 scsi_comp_flags;
+};
+
+struct io_bdt {
+	struct bnx2fc_cmd *io_req;
+	struct fcoe_bd_ctx *bd_tbl;
+	dma_addr_t bd_tbl_dma;
+	u16 bd_valid;
+};
+
+struct bnx2fc_work {
+	struct list_head list;
+	struct bnx2fc_rport *tgt;
+	u16 wqe;
+};
+struct bnx2fc_unsol_els {
+	struct fc_lport *lport;
+	struct fc_frame *fp;
+	struct work_struct unsol_els_work;
+};
+
+
+
+struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
+void bnx2fc_cmd_release(struct kref *ref);
+int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
+int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
+int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
+int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
+					struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_disable_req(struct fcoe_port *port,
+				    struct bnx2fc_rport *tgt);
+int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
+					struct bnx2fc_rport *tgt);
+int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
+void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
+					u32 num_cqe);
+int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
+void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
+int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
+void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
+struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
+						u16 min_xid, u16 max_xid);
+void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
+char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
+void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
+int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
+int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
+int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
+int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
+void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
+			  unsigned int timer_msec);
+int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
+void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
+			      struct fcoe_task_ctx_entry *task,
+			      u16 orig_xid);
+void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
+			 struct fcoe_task_ctx_entry *task);
+void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
+			     struct fcoe_task_ctx_entry *task);
+void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
+void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
+int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_host_reset(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
+int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
+void bnx2fc_rport_event_handler(struct fc_lport *lport,
+				struct fc_rport_priv *rport,
+				enum fc_rport_event event);
+void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
+				   struct fcoe_task_ctx_entry *task,
+				   u8 num_rq);
+void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
+			       struct fcoe_task_ctx_entry *task,
+			       u8 num_rq);
+void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
+			       struct fcoe_task_ctx_entry *task,
+			       u8 num_rq);
+void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
+			     struct fcoe_task_ctx_entry *task,
+			     u8 num_rq);
+void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
+			      struct fcoe_task_ctx_entry *task,
+			      u8 num_rq);
+void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
+			   struct fcp_cmnd *fcp_cmnd);
+
+
+
+void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
+struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
+				      struct fc_frame *fp, unsigned int op,
+				      void (*resp)(struct fc_seq *,
+						   struct fc_frame *,
+						   void *),
+				      void *arg, u32 timeout);
+int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
+void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe);
+struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
+					     u32 port_id);
+void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
+				   unsigned char *buf,
+				   u32 frame_len, u16 l2_oxid);
+int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
+
+#endif

drivers/scsi/bnx2fc/bnx2fc_constants.h

@@ -0,0 +1,206 @@
+#ifndef __BNX2FC_CONSTANTS_H_
+#define __BNX2FC_CONSTANTS_H_
+
+/**
+ * This file defines HSI constants for the FCoE flows
+ */
+
+/* KWQ/KCQ FCoE layer code */
+#define FCOE_KWQE_LAYER_CODE   (7)
+
+/* KWQ (kernel work queue) request op codes */
+#define FCOE_KWQE_OPCODE_INIT1			(0)
+#define FCOE_KWQE_OPCODE_INIT2			(1)
+#define FCOE_KWQE_OPCODE_INIT3			(2)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN1	(3)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN2	(4)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN3	(5)
+#define FCOE_KWQE_OPCODE_OFFLOAD_CONN4	(6)
+#define FCOE_KWQE_OPCODE_ENABLE_CONN	(7)
+#define FCOE_KWQE_OPCODE_DISABLE_CONN	(8)
+#define FCOE_KWQE_OPCODE_DESTROY_CONN	(9)
+#define FCOE_KWQE_OPCODE_DESTROY		(10)
+#define FCOE_KWQE_OPCODE_STAT			(11)
+
+/* KCQ (kernel completion queue) response op codes */
+#define FCOE_KCQE_OPCODE_INIT_FUNC				(0x10)
+#define FCOE_KCQE_OPCODE_DESTROY_FUNC			(0x11)
+#define FCOE_KCQE_OPCODE_STAT_FUNC				(0x12)
+#define FCOE_KCQE_OPCODE_OFFLOAD_CONN			(0x15)
+#define FCOE_KCQE_OPCODE_ENABLE_CONN			(0x16)
+#define FCOE_KCQE_OPCODE_DISABLE_CONN			(0x17)
+#define FCOE_KCQE_OPCODE_DESTROY_CONN			(0x18)
+#define FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION  (0x20)
+#define FCOE_KCQE_OPCODE_FCOE_ERROR				(0x21)
+
+/* KCQ (kernel completion queue) completion status */
+#define FCOE_KCQE_COMPLETION_STATUS_SUCCESS				(0x0)
+#define FCOE_KCQE_COMPLETION_STATUS_ERROR				(0x1)
+#define FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE		(0x2)
+#define FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE	(0x3)
+#define FCOE_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE	(0x4)
+#define FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR			(0x5)
+
+/* Unsolicited CQE type */
+#define FCOE_UNSOLICITED_FRAME_CQE_TYPE			0
+#define FCOE_ERROR_DETECTION_CQE_TYPE			1
+#define FCOE_WARNING_DETECTION_CQE_TYPE			2
+
+/* Task context constants */
+/* After driver has initialize the task in case timer services required */
+#define	FCOE_TASK_TX_STATE_INIT					0
+/* In case timer services are required then shall be updated by Xstorm after
+ * start processing the task. In case no timer facilities are required then the
+ * driver would initialize the state to this value */
+#define	FCOE_TASK_TX_STATE_NORMAL				1
+/* Task is under abort procedure. Updated in order to stop processing of
+ * pending WQEs on this task */
+#define	FCOE_TASK_TX_STATE_ABORT				2
+/* For E_D_T_TOV timer expiration in Xstorm (Class 2 only) */
+#define	FCOE_TASK_TX_STATE_ERROR				3
+/* For REC_TOV timer expiration indication received from Xstorm */
+#define	FCOE_TASK_TX_STATE_WARNING				4
+/* For completed unsolicited task */
+#define	FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED		5
+/* For exchange cleanup request task */
+#define	FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP			6
+/* For sequence cleanup request task */
+#define	FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP			7
+/* Mark task as aborted and indicate that ABTS was not transmitted */
+#define	FCOE_TASK_TX_STATE_BEFORE_ABTS_TX			8
+/* Mark task as aborted and indicate that ABTS was transmitted */
+#define	FCOE_TASK_TX_STATE_AFTER_ABTS_TX			9
+/* For completion the ABTS task. */
+#define	FCOE_TASK_TX_STATE_ABTS_TX_COMPLETED			10
+/* Mark task as aborted and indicate that Exchange cleanup was not transmitted
+ */
+#define	FCOE_TASK_TX_STATE_BEFORE_EXCHANGE_CLEANUP_TX		11
+/* Mark task as aborted and indicate that Exchange cleanup was transmitted */
+#define	FCOE_TASK_TX_STATE_AFTER_EXCHANGE_CLEANUP_TX		12
+
+#define	FCOE_TASK_RX_STATE_NORMAL				0
+#define	FCOE_TASK_RX_STATE_COMPLETED				1
+/* Obsolete: Intermediate completion (middle path with local completion) */
+#define	FCOE_TASK_RX_STATE_INTER_COMP				2
+/* For REC_TOV timer expiration indication received from Xstorm */
+#define	FCOE_TASK_RX_STATE_WARNING				3
+/* For E_D_T_TOV timer expiration in Ustorm */
+#define	FCOE_TASK_RX_STATE_ERROR				4
+/* ABTS ACC arrived wait for local completion to finally complete the task. */
+#define	FCOE_TASK_RX_STATE_ABTS_ACC_ARRIVED			5
+/* local completion arrived wait for ABTS ACC to finally complete the task. */
+#define	FCOE_TASK_RX_STATE_ABTS_LOCAL_COMP_ARRIVED		6
+/* Special completion indication in case of task was aborted. */
+#define FCOE_TASK_RX_STATE_ABTS_COMPLETED			7
+/* Special completion indication in case of task was cleaned. */
+#define FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED		8
+/* Special completion indication (in task requested the exchange cleanup) in
+ * case cleaned task is in non-valid. */
+#define FCOE_TASK_RX_STATE_ABORT_CLEANUP_COMPLETED		9
+/* Special completion indication (in task requested the sequence cleanup) in
+ * case cleaned task was already returned to normal. */
+#define FCOE_TASK_RX_STATE_IGNORED_SEQUENCE_CLEANUP		10
+/* Exchange cleanup arrived wait until xfer will be handled to finally
+ * complete the task. */
+#define	FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_ARRIVED		11
+/* Xfer handled, wait for exchange cleanup to finally complete the task. */
+#define	FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_HANDLED_XFER	12
+
+#define	FCOE_TASK_TYPE_WRITE			0
+#define	FCOE_TASK_TYPE_READ				1
+#define	FCOE_TASK_TYPE_MIDPATH			2
+#define	FCOE_TASK_TYPE_UNSOLICITED		3
+#define	FCOE_TASK_TYPE_ABTS				4
+#define	FCOE_TASK_TYPE_EXCHANGE_CLEANUP	5
+#define	FCOE_TASK_TYPE_SEQUENCE_CLEANUP	6
+
+#define FCOE_TASK_DEV_TYPE_DISK			0
+#define FCOE_TASK_DEV_TYPE_TAPE			1
+
+#define FCOE_TASK_CLASS_TYPE_3			0
+#define FCOE_TASK_CLASS_TYPE_2			1
+
+/* Everest FCoE connection type */
+#define B577XX_FCOE_CONNECTION_TYPE		4
+
+/* Error codes for Error Reporting in fast path flows */
+/* XFER error codes */
+#define FCOE_ERROR_CODE_XFER_OOO_RO					0
+#define FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED				1
+#define FCOE_ERROR_CODE_XFER_NULL_BURST_LEN				2
+#define FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS			3
+#define FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE			4
+#define FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE			5
+#define FCOE_ERROR_CODE_XFER_PEND_XFER_SET				6
+#define FCOE_ERROR_CODE_XFER_OPENED_SEQ					7
+#define FCOE_ERROR_CODE_XFER_FCTL					8
+
+/* FCP RSP error codes */
+#define FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET				9
+#define FCOE_ERROR_CODE_FCP_RSP_UNDERFLOW				10
+#define FCOE_ERROR_CODE_FCP_RSP_OVERFLOW				11
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD			12
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD			13
+#define FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE			14
+#define FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET				15
+#define FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ				16
+#define FCOE_ERROR_CODE_FCP_RSP_FCTL					17
+#define FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET				18
+#define FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET		19
+
+/* FCP DATA error codes */
+#define FCOE_ERROR_CODE_DATA_OOO_RO					20
+#define FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE		21
+#define FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS				22
+#define FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET			23
+#define FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET			24
+#define FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET				25
+#define FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET			26
+#define FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ			27
+#define FCOE_ERROR_CODE_DATA_FCTL					28
+
+/* Middle path error codes */
+#define FCOE_ERROR_CODE_MIDPATH_TYPE_NOT_ELS				29
+#define FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET			30
+#define FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET			31
+#define FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET			32
+#define FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET			33
+#define FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_FCTL				34
+#define FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY				35
+#define FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL				36
+
+/* ABTS error codes */
+#define FCOE_ERROR_CODE_ABTS_REPLY_F_CTL				37
+#define FCOE_ERROR_CODE_ABTS_REPLY_DDF_RCTL_FIELD			38
+#define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_BLS_RCTL			39
+#define FCOE_ERROR_CODE_ABTS_REPLY_INVALID_RCTL			40
+#define FCOE_ERROR_CODE_ABTS_REPLY_RCTL_GENERAL_MISMATCH		41
+
+/* Common error codes */
+#define FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD			42
+#define FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE				43
+#define FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH			44
+#define FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT			45
+#define FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH		46
+#define FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES			47
+#define FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR				48
+#define FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG			49
+#define FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED		50
+
+/* Unsolicited Rx error codes */
+#define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_ELS			51
+#define FCOE_ERROR_CODE_UNSOLICITED_TYPE_NOT_BLS			52
+#define FCOE_ERROR_CODE_UNSOLICITED_FCTL_ELS				53
+#define FCOE_ERROR_CODE_UNSOLICITED_FCTL_BLS				54
+#define FCOE_ERROR_CODE_UNSOLICITED_R_CTL				55
+
+#define FCOE_ERROR_CODE_RW_TASK_DDF_RCTL_INFO_FIELD			56
+#define FCOE_ERROR_CODE_RW_TASK_INVALID_RCTL				57
+#define FCOE_ERROR_CODE_RW_TASK_RCTL_GENERAL_MISMATCH			58
+
+/* Timer error codes */
+#define FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION			60
+#define FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION			61
+
+
+#endif /* BNX2FC_CONSTANTS_H_ */

drivers/scsi/bnx2fc/bnx2fc_debug.h

@@ -0,0 +1,70 @@
+#ifndef __BNX2FC_DEBUG__
+#define __BNX2FC_DEBUG__
+
+/* Log level bit mask */
+#define LOG_IO		0x01	/* scsi cmd error, cleanup */
+#define LOG_TGT		0x02	/* Session setup, cleanup, etc' */
+#define LOG_HBA		0x04	/* lport events, link, mtu, etc' */
+#define LOG_ELS		0x08	/* ELS logs */
+#define LOG_MISC	0x10	/* fcoe L2 frame related logs*/
+#define LOG_ALL		0xff	/* LOG all messages */
+
+extern unsigned int bnx2fc_debug_level;
+
+#define BNX2FC_CHK_LOGGING(LEVEL, CMD)					\
+	do {								\
+		if (unlikely(bnx2fc_debug_level & LEVEL))		\
+			do {						\
+				CMD;					\
+			} while (0);					\
+	} while (0)
+
+#define BNX2FC_ELS_DBG(fmt, arg...)					\
+	BNX2FC_CHK_LOGGING(LOG_ELS,					\
+			   printk(KERN_ALERT PFX fmt, ##arg))
+
+#define BNX2FC_MISC_DBG(fmt, arg...)					\
+	BNX2FC_CHK_LOGGING(LOG_MISC,					\
+			   printk(KERN_ALERT PFX fmt, ##arg))
+
+#define BNX2FC_IO_DBG(io_req, fmt, arg...)				\
+	do {								\
+		if (!io_req || !io_req->port || !io_req->port->lport ||	\
+		    !io_req->port->lport->host)				\
+			BNX2FC_CHK_LOGGING(LOG_IO,			\
+			   printk(KERN_ALERT PFX "NULL " fmt, ##arg));	\
+		else							\
+			BNX2FC_CHK_LOGGING(LOG_IO,			\
+			   shost_printk(KERN_ALERT,			\
+				   (io_req)->port->lport->host,		\
+				   PFX "xid:0x%x " fmt,			\
+				   (io_req)->xid, ##arg));		\
+	} while (0)
+
+#define BNX2FC_TGT_DBG(tgt, fmt, arg...)				\
+	do {								\
+		if (!tgt || !tgt->port || !tgt->port->lport ||		\
+		    !tgt->port->lport->host || !tgt->rport)		\
+			BNX2FC_CHK_LOGGING(LOG_TGT,			\
+			   printk(KERN_ALERT PFX "NULL " fmt, ##arg));	\
+		else							\
+			BNX2FC_CHK_LOGGING(LOG_TGT,			\
+			   shost_printk(KERN_ALERT,			\
+				   (tgt)->port->lport->host,		\
+				   PFX "port:%x " fmt,			\
+				   (tgt)->rport->port_id, ##arg));	\
+	} while (0)
+
+
+#define BNX2FC_HBA_DBG(lport, fmt, arg...)				\
+	do {								\
+		if (!lport || !lport->host)				\
+			BNX2FC_CHK_LOGGING(LOG_HBA,			\
+			   printk(KERN_ALERT PFX "NULL " fmt, ##arg));	\
+		else							\
+			BNX2FC_CHK_LOGGING(LOG_HBA,			\
+			   shost_printk(KERN_ALERT, lport->host,	\
+				   PFX fmt, ##arg));			\
+	} while (0)
+
+#endif

drivers/scsi/bnx2fc/bnx2fc_els.c

@@ -0,0 +1,515 @@
+/*
+ * bnx2fc_els.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains helper routines that handle ELS requests
+ * and responses.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
+			     void *arg);
+static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+			      void *arg);
+static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
+			void *data, u32 data_len,
+			void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
+			struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec);
+
+static void bnx2fc_rrq_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+	struct bnx2fc_cmd *orig_io_req;
+	struct bnx2fc_cmd *rrq_req;
+	int rc = 0;
+
+	BUG_ON(!cb_arg);
+	rrq_req = cb_arg->io_req;
+	orig_io_req = cb_arg->aborted_io_req;
+	BUG_ON(!orig_io_req);
+	BNX2FC_ELS_DBG("rrq_compl: orig xid = 0x%x, rrq_xid = 0x%x\n",
+		   orig_io_req->xid, rrq_req->xid);
+
+	kref_put(&orig_io_req->refcount, bnx2fc_cmd_release);
+
+	if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &rrq_req->req_flags)) {
+		/*
+		 * els req is timed out. cleanup the IO with FW and
+		 * drop the completion. Remove from active_cmd_queue.
+		 */
+		BNX2FC_ELS_DBG("rrq xid - 0x%x timed out, clean it up\n",
+			   rrq_req->xid);
+
+		if (rrq_req->on_active_queue) {
+			list_del_init(&rrq_req->link);
+			rrq_req->on_active_queue = 0;
+			rc = bnx2fc_initiate_cleanup(rrq_req);
+			BUG_ON(rc);
+		}
+	}
+	kfree(cb_arg);
+}
+int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req)
+{
+
+	struct fc_els_rrq rrq;
+	struct bnx2fc_rport *tgt = aborted_io_req->tgt;
+	struct fc_lport *lport = tgt->rdata->local_port;
+	struct bnx2fc_els_cb_arg *cb_arg = NULL;
+	u32 sid = tgt->sid;
+	u32 r_a_tov = lport->r_a_tov;
+	unsigned long start = jiffies;
+	int rc;
+
+	BNX2FC_ELS_DBG("Sending RRQ orig_xid = 0x%x\n",
+		   aborted_io_req->xid);
+	memset(&rrq, 0, sizeof(rrq));
+
+	cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_NOIO);
+	if (!cb_arg) {
+		printk(KERN_ERR PFX "Unable to allocate cb_arg for RRQ\n");
+		rc = -ENOMEM;
+		goto rrq_err;
+	}
+
+	cb_arg->aborted_io_req = aborted_io_req;
+
+	rrq.rrq_cmd = ELS_RRQ;
+	hton24(rrq.rrq_s_id, sid);
+	rrq.rrq_ox_id = htons(aborted_io_req->xid);
+	rrq.rrq_rx_id = htons(aborted_io_req->task->rx_wr_tx_rd.rx_id);
+
+retry_rrq:
+	rc = bnx2fc_initiate_els(tgt, ELS_RRQ, &rrq, sizeof(rrq),
+				 bnx2fc_rrq_compl, cb_arg,
+				 r_a_tov);
+	if (rc == -ENOMEM) {
+		if (time_after(jiffies, start + (10 * HZ))) {
+			BNX2FC_ELS_DBG("rrq Failed\n");
+			rc = FAILED;
+			goto rrq_err;
+		}
+		msleep(20);
+		goto retry_rrq;
+	}
+rrq_err:
+	if (rc) {
+		BNX2FC_ELS_DBG("RRQ failed - release orig io req 0x%x\n",
+			aborted_io_req->xid);
+		kfree(cb_arg);
+		spin_lock_bh(&tgt->tgt_lock);
+		kref_put(&aborted_io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+	}
+	return rc;
+}
+
+static void bnx2fc_l2_els_compl(struct bnx2fc_els_cb_arg *cb_arg)
+{
+	struct bnx2fc_cmd *els_req;
+	struct bnx2fc_rport *tgt;
+	struct bnx2fc_mp_req *mp_req;
+	struct fc_frame_header *fc_hdr;
+	unsigned char *buf;
+	void *resp_buf;
+	u32 resp_len, hdr_len;
+	u16 l2_oxid;
+	int frame_len;
+	int rc = 0;
+
+	l2_oxid = cb_arg->l2_oxid;
+	BNX2FC_ELS_DBG("ELS COMPL - l2_oxid = 0x%x\n", l2_oxid);
+
+	els_req = cb_arg->io_req;
+	if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &els_req->req_flags)) {
+		/*
+		 * els req is timed out. cleanup the IO with FW and
+		 * drop the completion. libfc will handle the els timeout
+		 */
+		if (els_req->on_active_queue) {
+			list_del_init(&els_req->link);
+			els_req->on_active_queue = 0;
+			rc = bnx2fc_initiate_cleanup(els_req);
+			BUG_ON(rc);
+		}
+		goto free_arg;
+	}
+
+	tgt = els_req->tgt;
+	mp_req = &(els_req->mp_req);
+	fc_hdr = &(mp_req->resp_fc_hdr);
+	resp_len = mp_req->resp_len;
+	resp_buf = mp_req->resp_buf;
+
+	buf = kzalloc(PAGE_SIZE, GFP_ATOMIC);
+	if (!buf) {
+		printk(KERN_ERR PFX "Unable to alloc mp buf\n");
+		goto free_arg;
+	}
+	hdr_len = sizeof(*fc_hdr);
+	if (hdr_len + resp_len > PAGE_SIZE) {
+		printk(KERN_ERR PFX "l2_els_compl: resp len is "
+				    "beyond page size\n");
+		goto free_buf;
+	}
+	memcpy(buf, fc_hdr, hdr_len);
+	memcpy(buf + hdr_len, resp_buf, resp_len);
+	frame_len = hdr_len + resp_len;
+
+	bnx2fc_process_l2_frame_compl(tgt, buf, frame_len, l2_oxid);
+
+free_buf:
+	kfree(buf);
+free_arg:
+	kfree(cb_arg);
+}
+
+int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+	struct fc_els_adisc *adisc;
+	struct fc_frame_header *fh;
+	struct bnx2fc_els_cb_arg *cb_arg;
+	struct fc_lport *lport = tgt->rdata->local_port;
+	u32 r_a_tov = lport->r_a_tov;
+	int rc;
+
+	fh = fc_frame_header_get(fp);
+	cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+	if (!cb_arg) {
+		printk(KERN_ERR PFX "Unable to allocate cb_arg for ADISC\n");
+		return -ENOMEM;
+	}
+
+	cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+	BNX2FC_ELS_DBG("send ADISC: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
+	adisc = fc_frame_payload_get(fp, sizeof(*adisc));
+	/* adisc is initialized by libfc */
+	rc = bnx2fc_initiate_els(tgt, ELS_ADISC, adisc, sizeof(*adisc),
+				 bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+	if (rc)
+		kfree(cb_arg);
+	return rc;
+}
+
+int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+	struct fc_els_logo *logo;
+	struct fc_frame_header *fh;
+	struct bnx2fc_els_cb_arg *cb_arg;
+	struct fc_lport *lport = tgt->rdata->local_port;
+	u32 r_a_tov = lport->r_a_tov;
+	int rc;
+
+	fh = fc_frame_header_get(fp);
+	cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+	if (!cb_arg) {
+		printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
+		return -ENOMEM;
+	}
+
+	cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+	BNX2FC_ELS_DBG("Send LOGO: l2_oxid = 0x%x\n", cb_arg->l2_oxid);
+	logo = fc_frame_payload_get(fp, sizeof(*logo));
+	/* logo is initialized by libfc */
+	rc = bnx2fc_initiate_els(tgt, ELS_LOGO, logo, sizeof(*logo),
+				 bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+	if (rc)
+		kfree(cb_arg);
+	return rc;
+}
+
+int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp)
+{
+	struct fc_els_rls *rls;
+	struct fc_frame_header *fh;
+	struct bnx2fc_els_cb_arg *cb_arg;
+	struct fc_lport *lport = tgt->rdata->local_port;
+	u32 r_a_tov = lport->r_a_tov;
+	int rc;
+
+	fh = fc_frame_header_get(fp);
+	cb_arg = kzalloc(sizeof(struct bnx2fc_els_cb_arg), GFP_ATOMIC);
+	if (!cb_arg) {
+		printk(KERN_ERR PFX "Unable to allocate cb_arg for LOGO\n");
+		return -ENOMEM;
+	}
+
+	cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+	rls = fc_frame_payload_get(fp, sizeof(*rls));
+	/* rls is initialized by libfc */
+	rc = bnx2fc_initiate_els(tgt, ELS_RLS, rls, sizeof(*rls),
+				  bnx2fc_l2_els_compl, cb_arg, 2 * r_a_tov);
+	if (rc)
+		kfree(cb_arg);
+	return rc;
+}
+
+static int bnx2fc_initiate_els(struct bnx2fc_rport *tgt, unsigned int op,
+			void *data, u32 data_len,
+			void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg),
+			struct bnx2fc_els_cb_arg *cb_arg, u32 timer_msec)
+{
+	struct fcoe_port *port = tgt->port;
+	struct bnx2fc_hba *hba = port->priv;
+	struct fc_rport *rport = tgt->rport;
+	struct fc_lport *lport = port->lport;
+	struct bnx2fc_cmd *els_req;
+	struct bnx2fc_mp_req *mp_req;
+	struct fc_frame_header *fc_hdr;
+	struct fcoe_task_ctx_entry *task;
+	struct fcoe_task_ctx_entry *task_page;
+	int rc = 0;
+	int task_idx, index;
+	u32 did, sid;
+	u16 xid;
+
+	rc = fc_remote_port_chkready(rport);
+	if (rc) {
+		printk(KERN_ALERT PFX "els 0x%x: rport not ready\n", op);
+		rc = -EINVAL;
+		goto els_err;
+	}
+	if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+		printk(KERN_ALERT PFX "els 0x%x: link is not ready\n", op);
+		rc = -EINVAL;
+		goto els_err;
+	}
+	if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) ||
+	     (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags))) {
+		printk(KERN_ERR PFX "els 0x%x: tgt not ready\n", op);
+		rc = -EINVAL;
+		goto els_err;
+	}
+	els_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ELS);
+	if (!els_req) {
+		rc = -ENOMEM;
+		goto els_err;
+	}
+
+	els_req->sc_cmd = NULL;
+	els_req->port = port;
+	els_req->tgt = tgt;
+	els_req->cb_func = cb_func;
+	cb_arg->io_req = els_req;
+	els_req->cb_arg = cb_arg;
+
+	mp_req = (struct bnx2fc_mp_req *)&(els_req->mp_req);
+	rc = bnx2fc_init_mp_req(els_req);
+	if (rc == FAILED) {
+		printk(KERN_ALERT PFX "ELS MP request init failed\n");
+		spin_lock_bh(&tgt->tgt_lock);
+		kref_put(&els_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		rc = -ENOMEM;
+		goto els_err;
+	} else {
+		/* rc SUCCESS */
+		rc = 0;
+	}
+
+	/* Set the data_xfer_len to the size of ELS payload */
+	mp_req->req_len = data_len;
+	els_req->data_xfer_len = mp_req->req_len;
+
+	/* Fill ELS Payload */
+	if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+		memcpy(mp_req->req_buf, data, data_len);
+	} else {
+		printk(KERN_ALERT PFX "Invalid ELS op 0x%x\n", op);
+		els_req->cb_func = NULL;
+		els_req->cb_arg = NULL;
+		spin_lock_bh(&tgt->tgt_lock);
+		kref_put(&els_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		rc = -EINVAL;
+	}
+
+	if (rc)
+		goto els_err;
+
+	/* Fill FC header */
+	fc_hdr = &(mp_req->req_fc_hdr);
+
+	did = tgt->rport->port_id;
+	sid = tgt->sid;
+
+	__fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, did, sid,
+			   FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+			   FC_FC_SEQ_INIT, 0);
+
+	/* Obtain exchange id */
+	xid = els_req->xid;
+	task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+	index = xid % BNX2FC_TASKS_PER_PAGE;
+
+	/* Initialize task context for this IO request */
+	task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+	task = &(task_page[index]);
+	bnx2fc_init_mp_task(els_req, task);
+
+	spin_lock_bh(&tgt->tgt_lock);
+
+	if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+		printk(KERN_ERR PFX "initiate_els.. session not ready\n");
+		els_req->cb_func = NULL;
+		els_req->cb_arg = NULL;
+		kref_put(&els_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return -EINVAL;
+	}
+
+	if (timer_msec)
+		bnx2fc_cmd_timer_set(els_req, timer_msec);
+	bnx2fc_add_2_sq(tgt, xid);
+
+	els_req->on_active_queue = 1;
+	list_add_tail(&els_req->link, &tgt->els_queue);
+
+	/* Ring doorbell */
+	bnx2fc_ring_doorbell(tgt);
+	spin_unlock_bh(&tgt->tgt_lock);
+
+els_err:
+	return rc;
+}
+
+void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
+			      struct fcoe_task_ctx_entry *task, u8 num_rq)
+{
+	struct bnx2fc_mp_req *mp_req;
+	struct fc_frame_header *fc_hdr;
+	u64 *hdr;
+	u64 *temp_hdr;
+
+	BNX2FC_ELS_DBG("Entered process_els_compl xid = 0x%x"
+			"cmd_type = %d\n", els_req->xid, els_req->cmd_type);
+
+	if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
+			     &els_req->req_flags)) {
+		BNX2FC_ELS_DBG("Timer context finished processing this "
+			   "els - 0x%x\n", els_req->xid);
+		/* This IO doesnt receive cleanup completion */
+		kref_put(&els_req->refcount, bnx2fc_cmd_release);
+		return;
+	}
+
+	/* Cancel the timeout_work, as we received the response */
+	if (cancel_delayed_work(&els_req->timeout_work))
+		kref_put(&els_req->refcount,
+			 bnx2fc_cmd_release); /* drop timer hold */
+
+	if (els_req->on_active_queue) {
+		list_del_init(&els_req->link);
+		els_req->on_active_queue = 0;
+	}
+
+	mp_req = &(els_req->mp_req);
+	fc_hdr = &(mp_req->resp_fc_hdr);
+
+	hdr = (u64 *)fc_hdr;
+	temp_hdr = (u64 *)
+		&task->cmn.general.cmd_info.mp_fc_frame.fc_hdr;
+	hdr[0] = cpu_to_be64(temp_hdr[0]);
+	hdr[1] = cpu_to_be64(temp_hdr[1]);
+	hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+	mp_req->resp_len = task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_off;
+
+	/* Parse ELS response */
+	if ((els_req->cb_func) && (els_req->cb_arg)) {
+		els_req->cb_func(els_req->cb_arg);
+		els_req->cb_arg = NULL;
+	}
+
+	kref_put(&els_req->refcount, bnx2fc_cmd_release);
+}
+
+static void bnx2fc_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+			      void *arg)
+{
+	struct fcoe_ctlr *fip = arg;
+	struct fc_exch *exch = fc_seq_exch(seq);
+	struct fc_lport *lport = exch->lp;
+	u8 *mac;
+	struct fc_frame_header *fh;
+	u8 op;
+
+	if (IS_ERR(fp))
+		goto done;
+
+	mac = fr_cb(fp)->granted_mac;
+	if (is_zero_ether_addr(mac)) {
+		fh = fc_frame_header_get(fp);
+		if (fh->fh_type != FC_TYPE_ELS) {
+			printk(KERN_ERR PFX "bnx2fc_flogi_resp:"
+				"fh_type != FC_TYPE_ELS\n");
+			fc_frame_free(fp);
+			return;
+		}
+		op = fc_frame_payload_op(fp);
+		if (lport->vport) {
+			if (op == ELS_LS_RJT) {
+				printk(KERN_ERR PFX "bnx2fc_flogi_resp is LS_RJT\n");
+				fc_vport_terminate(lport->vport);
+				fc_frame_free(fp);
+				return;
+			}
+		}
+		if (fcoe_ctlr_recv_flogi(fip, lport, fp)) {
+			fc_frame_free(fp);
+			return;
+		}
+	}
+	fip->update_mac(lport, mac);
+done:
+	fc_lport_flogi_resp(seq, fp, lport);
+}
+
+static void bnx2fc_logo_resp(struct fc_seq *seq, struct fc_frame *fp,
+			     void *arg)
+{
+	struct fcoe_ctlr *fip = arg;
+	struct fc_exch *exch = fc_seq_exch(seq);
+	struct fc_lport *lport = exch->lp;
+	static u8 zero_mac[ETH_ALEN] = { 0 };
+
+	if (!IS_ERR(fp))
+		fip->update_mac(lport, zero_mac);
+	fc_lport_logo_resp(seq, fp, lport);
+}
+
+struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
+				      struct fc_frame *fp, unsigned int op,
+				      void (*resp)(struct fc_seq *,
+						   struct fc_frame *,
+						   void *),
+				      void *arg, u32 timeout)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct fcoe_ctlr *fip = &hba->ctlr;
+	struct fc_frame_header *fh = fc_frame_header_get(fp);
+
+	switch (op) {
+	case ELS_FLOGI:
+	case ELS_FDISC:
+		return fc_elsct_send(lport, did, fp, op, bnx2fc_flogi_resp,
+				     fip, timeout);
+	case ELS_LOGO:
+		/* only hook onto fabric logouts, not port logouts */
+		if (ntoh24(fh->fh_d_id) != FC_FID_FLOGI)
+			break;
+		return fc_elsct_send(lport, did, fp, op, bnx2fc_logo_resp,
+				     fip, timeout);
+	}
+	return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}

drivers/scsi/bnx2fc/bnx2fc_fcoe.c

@@ -0,0 +1,2535 @@
+/* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that interacts with libfc, libfcoe,
+ * cnic modules to create FCoE instances, send/receive non-offloaded
+ * FIP/FCoE packets, listen to link events etc.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static struct list_head adapter_list;
+static u32 adapter_count;
+static DEFINE_MUTEX(bnx2fc_dev_lock);
+DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+#define DRV_MODULE_NAME		"bnx2fc"
+#define DRV_MODULE_VERSION	BNX2FC_VERSION
+#define DRV_MODULE_RELDATE	"Jan 25, 2011"
+
+
+static char version[] __devinitdata =
+		"Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
+		" v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+
+
+MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+#define BNX2FC_MAX_QUEUE_DEPTH	256
+#define BNX2FC_MIN_QUEUE_DEPTH	32
+#define FCOE_WORD_TO_BYTE  4
+
+static struct scsi_transport_template	*bnx2fc_transport_template;
+static struct scsi_transport_template	*bnx2fc_vport_xport_template;
+
+struct workqueue_struct *bnx2fc_wq;
+
+/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
+ * Here the io threads are per cpu but the l2 thread is just one
+ */
+struct fcoe_percpu_s bnx2fc_global;
+DEFINE_SPINLOCK(bnx2fc_global_lock);
+
+static struct cnic_ulp_ops bnx2fc_cnic_cb;
+static struct libfc_function_template bnx2fc_libfc_fcn_templ;
+static struct scsi_host_template bnx2fc_shost_template;
+static struct fc_function_template bnx2fc_transport_function;
+static struct fc_function_template bnx2fc_vport_xport_function;
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
+static int bnx2fc_destroy(struct net_device *net_device);
+static int bnx2fc_enable(struct net_device *netdev);
+static int bnx2fc_disable(struct net_device *netdev);
+
+static void bnx2fc_recv_frame(struct sk_buff *skb);
+
+static void bnx2fc_start_disc(struct bnx2fc_hba *hba);
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
+static int bnx2fc_net_config(struct fc_lport *lp);
+static int bnx2fc_lport_config(struct fc_lport *lport);
+static int bnx2fc_em_config(struct fc_lport *lport);
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
+				  struct device *parent, int npiv);
+static void bnx2fc_destroy_work(struct work_struct *work);
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport);
+static void bnx2fc_stop(struct bnx2fc_hba *hba);
+static int __init bnx2fc_mod_init(void);
+static void __exit bnx2fc_mod_exit(void);
+
+unsigned int bnx2fc_debug_level;
+module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
+
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+			     unsigned long action, void *hcpu);
+/* notification function for CPU hotplug events */
+static struct notifier_block bnx2fc_cpu_notifier = {
+	.notifier_call = bnx2fc_cpu_callback,
+};
+
+static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
+{
+	struct fcoe_percpu_s *bg;
+	struct fcoe_rcv_info *fr;
+	struct sk_buff_head *list;
+	struct sk_buff *skb, *next;
+	struct sk_buff *head;
+
+	bg = &bnx2fc_global;
+	spin_lock_bh(&bg->fcoe_rx_list.lock);
+	list = &bg->fcoe_rx_list;
+	head = list->next;
+	for (skb = head; skb != (struct sk_buff *)list;
+	     skb = next) {
+		next = skb->next;
+		fr = fcoe_dev_from_skb(skb);
+		if (fr->fr_dev == lp) {
+			__skb_unlink(skb, list);
+			kfree_skb(skb);
+		}
+	}
+	spin_unlock_bh(&bg->fcoe_rx_list.lock);
+}
+
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+	int rc;
+	spin_lock(&bnx2fc_global_lock);
+	rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
+	spin_unlock(&bnx2fc_global_lock);
+
+	return rc;
+}
+
+static void bnx2fc_abort_io(struct fc_lport *lport)
+{
+	/*
+	 * This function is no-op for bnx2fc, but we do
+	 * not want to leave it as NULL either, as libfc
+	 * can call the default function which is
+	 * fc_fcp_abort_io.
+	 */
+}
+
+static void bnx2fc_cleanup(struct fc_lport *lport)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct bnx2fc_rport *tgt;
+	int i;
+
+	BNX2FC_MISC_DBG("Entered %s\n", __func__);
+	mutex_lock(&hba->hba_mutex);
+	spin_lock_bh(&hba->hba_lock);
+	for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+		tgt = hba->tgt_ofld_list[i];
+		if (tgt) {
+			/* Cleanup IOs belonging to requested vport */
+			if (tgt->port == port) {
+				spin_unlock_bh(&hba->hba_lock);
+				BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
+				bnx2fc_flush_active_ios(tgt);
+				spin_lock_bh(&hba->hba_lock);
+			}
+		}
+	}
+	spin_unlock_bh(&hba->hba_lock);
+	mutex_unlock(&hba->hba_mutex);
+}
+
+static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
+			     struct fc_frame *fp)
+{
+	struct fc_rport_priv *rdata = tgt->rdata;
+	struct fc_frame_header *fh;
+	int rc = 0;
+
+	fh = fc_frame_header_get(fp);
+	BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
+			"r_ctl = 0x%x\n", rdata->ids.port_id,
+			ntohs(fh->fh_ox_id), fh->fh_r_ctl);
+	if ((fh->fh_type == FC_TYPE_ELS) &&
+	    (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+
+		switch (fc_frame_payload_op(fp)) {
+		case ELS_ADISC:
+			rc = bnx2fc_send_adisc(tgt, fp);
+			break;
+		case ELS_LOGO:
+			rc = bnx2fc_send_logo(tgt, fp);
+			break;
+		case ELS_RLS:
+			rc = bnx2fc_send_rls(tgt, fp);
+			break;
+		default:
+			break;
+		}
+	} else if ((fh->fh_type ==  FC_TYPE_BLS) &&
+	    (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
+		BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
+	else {
+		BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
+				"rctl 0x%x thru non-offload path\n",
+				fh->fh_type, fh->fh_r_ctl);
+		return -ENODEV;
+	}
+	if (rc)
+		return -ENOMEM;
+	else
+		return 0;
+}
+
+/**
+ * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
+ *
+ * @lport:	the associated local port
+ * @fp:	the fc_frame to be transmitted
+ */
+static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+	struct ethhdr		*eh;
+	struct fcoe_crc_eof	*cp;
+	struct sk_buff		*skb;
+	struct fc_frame_header	*fh;
+	struct bnx2fc_hba	*hba;
+	struct fcoe_port	*port;
+	struct fcoe_hdr		*hp;
+	struct bnx2fc_rport	*tgt;
+	struct fcoe_dev_stats	*stats;
+	u8			sof, eof;
+	u32			crc;
+	unsigned int		hlen, tlen, elen;
+	int			wlen, rc = 0;
+
+	port = (struct fcoe_port *)lport_priv(lport);
+	hba = port->priv;
+
+	fh = fc_frame_header_get(fp);
+
+	skb = fp_skb(fp);
+	if (!lport->link_up) {
+		BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
+		kfree_skb(skb);
+		return 0;
+	}
+
+	if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+		if (!hba->ctlr.sel_fcf) {
+			BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
+			kfree_skb(skb);
+			return -EINVAL;
+		}
+		if (fcoe_ctlr_els_send(&hba->ctlr, lport, skb))
+			return 0;
+	}
+
+	sof = fr_sof(fp);
+	eof = fr_eof(fp);
+
+	/*
+	 * Snoop the frame header to check if the frame is for
+	 * an offloaded session
+	 */
+	/*
+	 * tgt_ofld_list access is synchronized using
+	 * both hba mutex and hba lock. Atleast hba mutex or
+	 * hba lock needs to be held for read access.
+	 */
+
+	spin_lock_bh(&hba->hba_lock);
+	tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
+	if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+		/* This frame is for offloaded session */
+		BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
+				"port_id = 0x%x\n", ntoh24(fh->fh_d_id));
+		spin_unlock_bh(&hba->hba_lock);
+		rc = bnx2fc_xmit_l2_frame(tgt, fp);
+		if (rc != -ENODEV) {
+			kfree_skb(skb);
+			return rc;
+		}
+	} else {
+		spin_unlock_bh(&hba->hba_lock);
+	}
+
+	elen = sizeof(struct ethhdr);
+	hlen = sizeof(struct fcoe_hdr);
+	tlen = sizeof(struct fcoe_crc_eof);
+	wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+	skb->ip_summed = CHECKSUM_NONE;
+	crc = fcoe_fc_crc(fp);
+
+	/* copy port crc and eof to the skb buff */
+	if (skb_is_nonlinear(skb)) {
+		skb_frag_t *frag;
+		if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
+			kfree_skb(skb);
+			return -ENOMEM;
+		}
+		frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+		cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
+				+ frag->page_offset;
+	} else {
+		cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+	}
+
+	memset(cp, 0, sizeof(*cp));
+	cp->fcoe_eof = eof;
+	cp->fcoe_crc32 = cpu_to_le32(~crc);
+	if (skb_is_nonlinear(skb)) {
+		kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
+		cp = NULL;
+	}
+
+	/* adjust skb network/transport offsets to match mac/fcoe/port */
+	skb_push(skb, elen + hlen);
+	skb_reset_mac_header(skb);
+	skb_reset_network_header(skb);
+	skb->mac_len = elen;
+	skb->protocol = htons(ETH_P_FCOE);
+	skb->dev = hba->netdev;
+
+	/* fill up mac and fcoe headers */
+	eh = eth_hdr(skb);
+	eh->h_proto = htons(ETH_P_FCOE);
+	if (hba->ctlr.map_dest)
+		fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+	else
+		/* insert GW address */
+		memcpy(eh->h_dest, hba->ctlr.dest_addr, ETH_ALEN);
+
+	if (unlikely(hba->ctlr.flogi_oxid != FC_XID_UNKNOWN))
+		memcpy(eh->h_source, hba->ctlr.ctl_src_addr, ETH_ALEN);
+	else
+		memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
+
+	hp = (struct fcoe_hdr *)(eh + 1);
+	memset(hp, 0, sizeof(*hp));
+	if (FC_FCOE_VER)
+		FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+	hp->fcoe_sof = sof;
+
+	/* fcoe lso, mss is in max_payload which is non-zero for FCP data */
+	if (lport->seq_offload && fr_max_payload(fp)) {
+		skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
+		skb_shinfo(skb)->gso_size = fr_max_payload(fp);
+	} else {
+		skb_shinfo(skb)->gso_type = 0;
+		skb_shinfo(skb)->gso_size = 0;
+	}
+
+	/*update tx stats */
+	stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+	stats->TxFrames++;
+	stats->TxWords += wlen;
+	put_cpu();
+
+	/* send down to lld */
+	fr_dev(fp) = lport;
+	if (port->fcoe_pending_queue.qlen)
+		fcoe_check_wait_queue(lport, skb);
+	else if (fcoe_start_io(skb))
+		fcoe_check_wait_queue(lport, skb);
+
+	return 0;
+}
+
+/**
+ * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
+ *
+ * @skb:	the receive socket buffer
+ * @dev:	associated net device
+ * @ptype:	context
+ * @olddev:	last device
+ *
+ * This function receives the packet and builds FC frame and passes it up
+ */
+static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
+		struct packet_type *ptype, struct net_device *olddev)
+{
+	struct fc_lport *lport;
+	struct bnx2fc_hba *hba;
+	struct fc_frame_header *fh;
+	struct fcoe_rcv_info *fr;
+	struct fcoe_percpu_s *bg;
+	unsigned short oxid;
+
+	hba = container_of(ptype, struct bnx2fc_hba, fcoe_packet_type);
+	lport = hba->ctlr.lp;
+
+	if (unlikely(lport == NULL)) {
+		printk(KERN_ALERT PFX "bnx2fc_rcv: lport is NULL\n");
+		goto err;
+	}
+
+	if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
+		printk(KERN_ALERT PFX "bnx2fc_rcv: Wrong FC type frame\n");
+		goto err;
+	}
+
+	/*
+	 * Check for minimum frame length, and make sure required FCoE
+	 * and FC headers are pulled into the linear data area.
+	 */
+	if (unlikely((skb->len < FCOE_MIN_FRAME) ||
+	    !pskb_may_pull(skb, FCOE_HEADER_LEN)))
+		goto err;
+
+	skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
+	fh = (struct fc_frame_header *) skb_transport_header(skb);
+
+	oxid = ntohs(fh->fh_ox_id);
+
+	fr = fcoe_dev_from_skb(skb);
+	fr->fr_dev = lport;
+	fr->ptype = ptype;
+
+	bg = &bnx2fc_global;
+	spin_lock_bh(&bg->fcoe_rx_list.lock);
+
+	__skb_queue_tail(&bg->fcoe_rx_list, skb);
+	if (bg->fcoe_rx_list.qlen == 1)
+		wake_up_process(bg->thread);
+
+	spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+	return 0;
+err:
+	kfree_skb(skb);
+	return -1;
+}
+
+static int bnx2fc_l2_rcv_thread(void *arg)
+{
+	struct fcoe_percpu_s *bg = arg;
+	struct sk_buff *skb;
+
+	set_user_nice(current, -20);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (!kthread_should_stop()) {
+		schedule();
+		set_current_state(TASK_RUNNING);
+		spin_lock_bh(&bg->fcoe_rx_list.lock);
+		while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
+			spin_unlock_bh(&bg->fcoe_rx_list.lock);
+			bnx2fc_recv_frame(skb);
+			spin_lock_bh(&bg->fcoe_rx_list.lock);
+		}
+		spin_unlock_bh(&bg->fcoe_rx_list.lock);
+		set_current_state(TASK_INTERRUPTIBLE);
+	}
+	set_current_state(TASK_RUNNING);
+	return 0;
+}
+
+
+static void bnx2fc_recv_frame(struct sk_buff *skb)
+{
+	u32 fr_len;
+	struct fc_lport *lport;
+	struct fcoe_rcv_info *fr;
+	struct fcoe_dev_stats *stats;
+	struct fc_frame_header *fh;
+	struct fcoe_crc_eof crc_eof;
+	struct fc_frame *fp;
+	struct fc_lport *vn_port;
+	struct fcoe_port *port;
+	u8 *mac = NULL;
+	u8 *dest_mac = NULL;
+	struct fcoe_hdr *hp;
+
+	fr = fcoe_dev_from_skb(skb);
+	lport = fr->fr_dev;
+	if (unlikely(lport == NULL)) {
+		printk(KERN_ALERT PFX "Invalid lport struct\n");
+		kfree_skb(skb);
+		return;
+	}
+
+	if (skb_is_nonlinear(skb))
+		skb_linearize(skb);
+	mac = eth_hdr(skb)->h_source;
+	dest_mac = eth_hdr(skb)->h_dest;
+
+	/* Pull the header */
+	hp = (struct fcoe_hdr *) skb_network_header(skb);
+	fh = (struct fc_frame_header *) skb_transport_header(skb);
+	skb_pull(skb, sizeof(struct fcoe_hdr));
+	fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+	stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+	stats->RxFrames++;
+	stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+
+	fp = (struct fc_frame *)skb;
+	fc_frame_init(fp);
+	fr_dev(fp) = lport;
+	fr_sof(fp) = hp->fcoe_sof;
+	if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+		put_cpu();
+		kfree_skb(skb);
+		return;
+	}
+	fr_eof(fp) = crc_eof.fcoe_eof;
+	fr_crc(fp) = crc_eof.fcoe_crc32;
+	if (pskb_trim(skb, fr_len)) {
+		put_cpu();
+		kfree_skb(skb);
+		return;
+	}
+
+	fh = fc_frame_header_get(fp);
+
+	vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
+	if (vn_port) {
+		port = lport_priv(vn_port);
+		if (compare_ether_addr(port->data_src_addr, dest_mac)
+		    != 0) {
+			BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
+			put_cpu();
+			kfree_skb(skb);
+			return;
+		}
+	}
+	if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+	    fh->fh_type == FC_TYPE_FCP) {
+		/* Drop FCP data. We dont this in L2 path */
+		put_cpu();
+		kfree_skb(skb);
+		return;
+	}
+	if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+	    fh->fh_type == FC_TYPE_ELS) {
+		switch (fc_frame_payload_op(fp)) {
+		case ELS_LOGO:
+			if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+				/* drop non-FIP LOGO */
+				put_cpu();
+				kfree_skb(skb);
+				return;
+			}
+			break;
+		}
+	}
+	if (le32_to_cpu(fr_crc(fp)) !=
+			~crc32(~0, skb->data, fr_len)) {
+		if (stats->InvalidCRCCount < 5)
+			printk(KERN_WARNING PFX "dropping frame with "
+			       "CRC error\n");
+		stats->InvalidCRCCount++;
+		put_cpu();
+		kfree_skb(skb);
+		return;
+	}
+	put_cpu();
+	fc_exch_recv(lport, fp);
+}
+
+/**
+ * bnx2fc_percpu_io_thread - thread per cpu for ios
+ *
+ * @arg:	ptr to bnx2fc_percpu_info structure
+ */
+int bnx2fc_percpu_io_thread(void *arg)
+{
+	struct bnx2fc_percpu_s *p = arg;
+	struct bnx2fc_work *work, *tmp;
+	LIST_HEAD(work_list);
+
+	set_user_nice(current, -20);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (!kthread_should_stop()) {
+		schedule();
+		set_current_state(TASK_RUNNING);
+		spin_lock_bh(&p->fp_work_lock);
+		while (!list_empty(&p->work_list)) {
+			list_splice_init(&p->work_list, &work_list);
+			spin_unlock_bh(&p->fp_work_lock);
+
+			list_for_each_entry_safe(work, tmp, &work_list, list) {
+				list_del_init(&work->list);
+				bnx2fc_process_cq_compl(work->tgt, work->wqe);
+				kfree(work);
+			}
+
+			spin_lock_bh(&p->fp_work_lock);
+		}
+		spin_unlock_bh(&p->fp_work_lock);
+		set_current_state(TASK_INTERRUPTIBLE);
+	}
+	set_current_state(TASK_RUNNING);
+
+	return 0;
+}
+
+static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
+{
+	struct fc_host_statistics *bnx2fc_stats;
+	struct fc_lport *lport = shost_priv(shost);
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct fcoe_statistics_params *fw_stats;
+	int rc = 0;
+
+	fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
+	if (!fw_stats)
+		return NULL;
+
+	bnx2fc_stats = fc_get_host_stats(shost);
+
+	init_completion(&hba->stat_req_done);
+	if (bnx2fc_send_stat_req(hba))
+		return bnx2fc_stats;
+	rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
+	if (!rc) {
+		BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
+		return bnx2fc_stats;
+	}
+	bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat1.fc_crc_cnt;
+	bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
+	bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
+	bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
+	bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
+
+	bnx2fc_stats->dumped_frames = 0;
+	bnx2fc_stats->lip_count = 0;
+	bnx2fc_stats->nos_count = 0;
+	bnx2fc_stats->loss_of_sync_count = 0;
+	bnx2fc_stats->loss_of_signal_count = 0;
+	bnx2fc_stats->prim_seq_protocol_err_count = 0;
+
+	return bnx2fc_stats;
+}
+
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct Scsi_Host *shost = lport->host;
+	int rc = 0;
+
+	shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
+	shost->max_lun = BNX2FC_MAX_LUN;
+	shost->max_id = BNX2FC_MAX_FCP_TGT;
+	shost->max_channel = 0;
+	if (lport->vport)
+		shost->transportt = bnx2fc_vport_xport_template;
+	else
+		shost->transportt = bnx2fc_transport_template;
+
+	/* Add the new host to SCSI-ml */
+	rc = scsi_add_host(lport->host, dev);
+	if (rc) {
+		printk(KERN_ERR PFX "Error on scsi_add_host\n");
+		return rc;
+	}
+	if (!lport->vport)
+		fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
+	sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
+		BNX2FC_NAME, BNX2FC_VERSION,
+		hba->netdev->name);
+
+	return 0;
+}
+
+static int  bnx2fc_mfs_update(struct fc_lport *lport)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct net_device *netdev = hba->netdev;
+	u32 mfs;
+	u32 max_mfs;
+
+	mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
+			     sizeof(struct fcoe_crc_eof));
+	max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header);
+	BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs);
+	if (mfs > max_mfs)
+		mfs = max_mfs;
+
+	/* Adjust mfs to be a multiple of 256 bytes */
+	mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) *
+			BNX2FC_MIN_PAYLOAD);
+	mfs = mfs + sizeof(struct fc_frame_header);
+
+	BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs);
+	if (fc_set_mfs(lport, mfs))
+		return -EINVAL;
+	return 0;
+}
+static void bnx2fc_link_speed_update(struct fc_lport *lport)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct net_device *netdev = hba->netdev;
+	struct ethtool_cmd ecmd = { ETHTOOL_GSET };
+
+	if (!dev_ethtool_get_settings(netdev, &ecmd)) {
+		lport->link_supported_speeds &=
+			~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
+		if (ecmd.supported & (SUPPORTED_1000baseT_Half |
+				      SUPPORTED_1000baseT_Full))
+			lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
+		if (ecmd.supported & SUPPORTED_10000baseT_Full)
+			lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
+
+		if (ecmd.speed == SPEED_1000)
+			lport->link_speed = FC_PORTSPEED_1GBIT;
+		if (ecmd.speed == SPEED_10000)
+			lport->link_speed = FC_PORTSPEED_10GBIT;
+	}
+	return;
+}
+static int bnx2fc_link_ok(struct fc_lport *lport)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct net_device *dev = hba->phys_dev;
+	int rc = 0;
+
+	if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
+		clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+	else {
+		set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+		rc = -1;
+	}
+	return rc;
+}
+
+/**
+ * bnx2fc_get_link_state - get network link state
+ *
+ * @hba:	adapter instance pointer
+ *
+ * updates adapter structure flag based on netdev state
+ */
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
+{
+	if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
+		set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+	else
+		clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+}
+
+static int bnx2fc_net_config(struct fc_lport *lport)
+{
+	struct bnx2fc_hba *hba;
+	struct fcoe_port *port;
+	u64 wwnn, wwpn;
+
+	port = lport_priv(lport);
+	hba = port->priv;
+
+	/* require support for get_pauseparam ethtool op. */
+	if (!hba->phys_dev->ethtool_ops ||
+	    !hba->phys_dev->ethtool_ops->get_pauseparam)
+		return -EOPNOTSUPP;
+
+	if (bnx2fc_mfs_update(lport))
+		return -EINVAL;
+
+	skb_queue_head_init(&port->fcoe_pending_queue);
+	port->fcoe_pending_queue_active = 0;
+	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+
+	bnx2fc_link_speed_update(lport);
+
+	if (!lport->vport) {
+		wwnn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 1, 0);
+		BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
+		fc_set_wwnn(lport, wwnn);
+
+		wwpn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 2, 0);
+		BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
+		fc_set_wwpn(lport, wwpn);
+	}
+
+	return 0;
+}
+
+static void bnx2fc_destroy_timer(unsigned long data)
+{
+	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+
+	BNX2FC_HBA_DBG(hba->ctlr.lp, "ERROR:bnx2fc_destroy_timer - "
+		   "Destroy compl not received!!\n");
+	hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
+	wake_up_interruptible(&hba->destroy_wait);
+}
+
+/**
+ * bnx2fc_indicate_netevent - Generic netdev event handler
+ *
+ * @context:	adapter structure pointer
+ * @event:	event type
+ *
+ * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
+ * NETDEV_CHANGE_MTU events
+ */
+static void bnx2fc_indicate_netevent(void *context, unsigned long event)
+{
+	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+	struct fc_lport *lport = hba->ctlr.lp;
+	struct fc_lport *vport;
+	u32 link_possible = 1;
+
+	if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+		BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
+			   hba->netdev->name, event);
+		return;
+	}
+
+	/*
+	 * ASSUMPTION:
+	 * indicate_netevent cannot be called from cnic unless bnx2fc
+	 * does register_device
+	 */
+	BUG_ON(!lport);
+
+	BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
+				hba->netdev->name, event);
+
+	switch (event) {
+	case NETDEV_UP:
+		BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
+			hba->adapter_state);
+		if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
+			printk(KERN_ERR "indicate_netevent: "\
+					"adapter is not UP!!\n");
+		/* fall thru to update mfs if MTU has changed */
+	case NETDEV_CHANGEMTU:
+		BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n");
+		bnx2fc_mfs_update(lport);
+		mutex_lock(&lport->lp_mutex);
+		list_for_each_entry(vport, &lport->vports, list)
+			bnx2fc_mfs_update(vport);
+		mutex_unlock(&lport->lp_mutex);
+		break;
+
+	case NETDEV_DOWN:
+		BNX2FC_HBA_DBG(lport, "Port down\n");
+		clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+		clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+		link_possible = 0;
+		break;
+
+	case NETDEV_GOING_DOWN:
+		BNX2FC_HBA_DBG(lport, "Port going down\n");
+		set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+		link_possible = 0;
+		break;
+
+	case NETDEV_CHANGE:
+		BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
+		break;
+
+	default:
+		printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
+		return;
+	}
+
+	bnx2fc_link_speed_update(lport);
+
+	if (link_possible && !bnx2fc_link_ok(lport)) {
+		printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
+		fcoe_ctlr_link_up(&hba->ctlr);
+	} else {
+		printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
+		if (fcoe_ctlr_link_down(&hba->ctlr)) {
+			clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+			mutex_lock(&lport->lp_mutex);
+			list_for_each_entry(vport, &lport->vports, list)
+				fc_host_port_type(vport->host) =
+							FC_PORTTYPE_UNKNOWN;
+			mutex_unlock(&lport->lp_mutex);
+			fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+			per_cpu_ptr(lport->dev_stats,
+				    get_cpu())->LinkFailureCount++;
+			put_cpu();
+			fcoe_clean_pending_queue(lport);
+
+			init_waitqueue_head(&hba->shutdown_wait);
+			BNX2FC_HBA_DBG(lport, "indicate_netevent "
+					     "num_ofld_sess = %d\n",
+				   hba->num_ofld_sess);
+			hba->wait_for_link_down = 1;
+			BNX2FC_HBA_DBG(lport, "waiting for uploads to "
+					     "compl proc = %s\n",
+				   current->comm);
+			wait_event_interruptible(hba->shutdown_wait,
+						 (hba->num_ofld_sess == 0));
+			BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
+				hba->num_ofld_sess);
+			hba->wait_for_link_down = 0;
+
+			if (signal_pending(current))
+				flush_signals(current);
+		}
+	}
+}
+
+static int bnx2fc_libfc_config(struct fc_lport *lport)
+{
+
+	/* Set the function pointers set by bnx2fc driver */
+	memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
+		sizeof(struct libfc_function_template));
+	fc_elsct_init(lport);
+	fc_exch_init(lport);
+	fc_rport_init(lport);
+	fc_disc_init(lport);
+	return 0;
+}
+
+static int bnx2fc_em_config(struct fc_lport *lport)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+
+	if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
+				FCOE_MAX_XID, NULL)) {
+		printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
+		return -ENOMEM;
+	}
+
+	hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
+					    BNX2FC_MAX_XID);
+
+	if (!hba->cmd_mgr) {
+		printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
+		fc_exch_mgr_free(lport);
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static int bnx2fc_lport_config(struct fc_lport *lport)
+{
+	lport->link_up = 0;
+	lport->qfull = 0;
+	lport->max_retry_count = 3;
+	lport->max_rport_retry_count = 3;
+	lport->e_d_tov = 2 * 1000;
+	lport->r_a_tov = 10 * 1000;
+
+	/* REVISIT: enable when supporting tape devices
+	lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+				FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+	*/
+	lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
+	lport->does_npiv = 1;
+
+	memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
+	lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
+
+	/* alloc stats structure */
+	if (fc_lport_init_stats(lport))
+		return -ENOMEM;
+
+	/* Finish fc_lport configuration */
+	fc_lport_config(lport);
+
+	return 0;
+}
+
+/**
+ * bnx2fc_fip_recv - handle a received FIP frame.
+ *
+ * @skb: the received skb
+ * @dev: associated &net_device
+ * @ptype: the &packet_type structure which was used to register this handler.
+ * @orig_dev: original receive &net_device, in case @ dev is a bond.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
+			   struct packet_type *ptype,
+			   struct net_device *orig_dev)
+{
+	struct bnx2fc_hba *hba;
+	hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
+	fcoe_ctlr_recv(&hba->ctlr, skb);
+	return 0;
+}
+
+/**
+ * bnx2fc_update_src_mac - Update Ethernet MAC filters.
+ *
+ * @fip: FCoE controller.
+ * @old: Unicast MAC address to delete if the MAC is non-zero.
+ * @new: Unicast MAC address to add.
+ *
+ * Remove any previously-set unicast MAC filter.
+ * Add secondary FCoE MAC address filter for our OUI.
+ */
+static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+	struct fcoe_port *port = lport_priv(lport);
+
+	memcpy(port->data_src_addr, addr, ETH_ALEN);
+}
+
+/**
+ * bnx2fc_get_src_mac - return the ethernet source address for an lport
+ *
+ * @lport: libfc port
+ */
+static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
+{
+	struct fcoe_port *port;
+
+	port = (struct fcoe_port *)lport_priv(lport);
+	return port->data_src_addr;
+}
+
+/**
+ * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
+ *
+ * @fip: FCoE controller.
+ * @skb: FIP Packet.
+ */
+static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+	skb->dev = bnx2fc_from_ctlr(fip)->netdev;
+	dev_queue_xmit(skb);
+}
+
+static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
+{
+	struct Scsi_Host *shost = vport_to_shost(vport);
+	struct fc_lport *n_port = shost_priv(shost);
+	struct fcoe_port *port = lport_priv(n_port);
+	struct bnx2fc_hba *hba = port->priv;
+	struct net_device *netdev = hba->netdev;
+	struct fc_lport *vn_port;
+
+	if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+		printk(KERN_ERR PFX "vn ports cannot be created on"
+			"this hba\n");
+		return -EIO;
+	}
+	mutex_lock(&bnx2fc_dev_lock);
+	vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
+	mutex_unlock(&bnx2fc_dev_lock);
+
+	if (IS_ERR(vn_port)) {
+		printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
+			netdev->name);
+		return -EIO;
+	}
+
+	if (disabled) {
+		fc_vport_set_state(vport, FC_VPORT_DISABLED);
+	} else {
+		vn_port->boot_time = jiffies;
+		fc_lport_init(vn_port);
+		fc_fabric_login(vn_port);
+		fc_vport_setlink(vn_port);
+	}
+	return 0;
+}
+
+static int bnx2fc_vport_destroy(struct fc_vport *vport)
+{
+	struct Scsi_Host *shost = vport_to_shost(vport);
+	struct fc_lport *n_port = shost_priv(shost);
+	struct fc_lport *vn_port = vport->dd_data;
+	struct fcoe_port *port = lport_priv(vn_port);
+
+	mutex_lock(&n_port->lp_mutex);
+	list_del(&vn_port->list);
+	mutex_unlock(&n_port->lp_mutex);
+	queue_work(bnx2fc_wq, &port->destroy_work);
+	return 0;
+}
+
+static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
+{
+	struct fc_lport *lport = vport->dd_data;
+
+	if (disable) {
+		fc_vport_set_state(vport, FC_VPORT_DISABLED);
+		fc_fabric_logoff(lport);
+	} else {
+		lport->boot_time = jiffies;
+		fc_fabric_login(lport);
+		fc_vport_setlink(lport);
+	}
+	return 0;
+}
+
+
+static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
+{
+	struct net_device *netdev = hba->netdev;
+	struct net_device *physdev = hba->phys_dev;
+	struct netdev_hw_addr *ha;
+	int sel_san_mac = 0;
+
+	/* Do not support for bonding device */
+	if ((netdev->priv_flags & IFF_MASTER_ALB) ||
+			(netdev->priv_flags & IFF_SLAVE_INACTIVE) ||
+			(netdev->priv_flags & IFF_MASTER_8023AD)) {
+		return -EOPNOTSUPP;
+	}
+
+	/* setup Source MAC Address */
+	rcu_read_lock();
+	for_each_dev_addr(physdev, ha) {
+		BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
+				ha->type);
+		printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
+				ha->addr[1], ha->addr[2], ha->addr[3],
+				ha->addr[4], ha->addr[5]);
+
+		if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
+		    (is_valid_ether_addr(ha->addr))) {
+			memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
+			sel_san_mac = 1;
+			BNX2FC_MISC_DBG("Found SAN MAC\n");
+		}
+	}
+	rcu_read_unlock();
+
+	if (!sel_san_mac)
+		return -ENODEV;
+
+	hba->fip_packet_type.func = bnx2fc_fip_recv;
+	hba->fip_packet_type.type = htons(ETH_P_FIP);
+	hba->fip_packet_type.dev = netdev;
+	dev_add_pack(&hba->fip_packet_type);
+
+	hba->fcoe_packet_type.func = bnx2fc_rcv;
+	hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
+	hba->fcoe_packet_type.dev = netdev;
+	dev_add_pack(&hba->fcoe_packet_type);
+
+	return 0;
+}
+
+static int bnx2fc_attach_transport(void)
+{
+	bnx2fc_transport_template =
+		fc_attach_transport(&bnx2fc_transport_function);
+
+	if (bnx2fc_transport_template == NULL) {
+		printk(KERN_ERR PFX "Failed to attach FC transport\n");
+		return -ENODEV;
+	}
+
+	bnx2fc_vport_xport_template =
+		fc_attach_transport(&bnx2fc_vport_xport_function);
+	if (bnx2fc_vport_xport_template == NULL) {
+		printk(KERN_ERR PFX
+		       "Failed to attach FC transport for vport\n");
+		fc_release_transport(bnx2fc_transport_template);
+		bnx2fc_transport_template = NULL;
+		return -ENODEV;
+	}
+	return 0;
+}
+static void bnx2fc_release_transport(void)
+{
+	fc_release_transport(bnx2fc_transport_template);
+	fc_release_transport(bnx2fc_vport_xport_template);
+	bnx2fc_transport_template = NULL;
+	bnx2fc_vport_xport_template = NULL;
+}
+
+static void bnx2fc_interface_release(struct kref *kref)
+{
+	struct bnx2fc_hba *hba;
+	struct net_device *netdev;
+	struct net_device *phys_dev;
+
+	hba = container_of(kref, struct bnx2fc_hba, kref);
+	BNX2FC_HBA_DBG(hba->ctlr.lp, "Interface is being released\n");
+
+	netdev = hba->netdev;
+	phys_dev = hba->phys_dev;
+
+	/* tear-down FIP controller */
+	if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
+		fcoe_ctlr_destroy(&hba->ctlr);
+
+	/* Free the command manager */
+	if (hba->cmd_mgr) {
+		bnx2fc_cmd_mgr_free(hba->cmd_mgr);
+		hba->cmd_mgr = NULL;
+	}
+	dev_put(netdev);
+	module_put(THIS_MODULE);
+}
+
+static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
+{
+	kref_get(&hba->kref);
+}
+
+static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
+{
+	kref_put(&hba->kref, bnx2fc_interface_release);
+}
+static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
+{
+	bnx2fc_unbind_pcidev(hba);
+	kfree(hba);
+}
+
+/**
+ * bnx2fc_interface_create - create a new fcoe instance
+ *
+ * @cnic:	pointer to cnic device
+ *
+ * Creates a new FCoE instance on the given device which include allocating
+ *	hba structure, scsi_host and lport structures.
+ */
+static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
+{
+	struct bnx2fc_hba *hba;
+	int rc;
+
+	hba = kzalloc(sizeof(*hba), GFP_KERNEL);
+	if (!hba) {
+		printk(KERN_ERR PFX "Unable to allocate hba structure\n");
+		return NULL;
+	}
+	spin_lock_init(&hba->hba_lock);
+	mutex_init(&hba->hba_mutex);
+
+	hba->cnic = cnic;
+	rc = bnx2fc_bind_pcidev(hba);
+	if (rc)
+		goto bind_err;
+	hba->phys_dev = cnic->netdev;
+	/* will get overwritten after we do vlan discovery */
+	hba->netdev = hba->phys_dev;
+
+	init_waitqueue_head(&hba->shutdown_wait);
+	init_waitqueue_head(&hba->destroy_wait);
+
+	return hba;
+bind_err:
+	printk(KERN_ERR PFX "create_interface: bind error\n");
+	kfree(hba);
+	return NULL;
+}
+
+static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
+				  enum fip_state fip_mode)
+{
+	int rc = 0;
+	struct net_device *netdev = hba->netdev;
+	struct fcoe_ctlr *fip = &hba->ctlr;
+
+	dev_hold(netdev);
+	kref_init(&hba->kref);
+
+	hba->flags = 0;
+
+	/* Initialize FIP */
+	memset(fip, 0, sizeof(*fip));
+	fcoe_ctlr_init(fip, fip_mode);
+	hba->ctlr.send = bnx2fc_fip_send;
+	hba->ctlr.update_mac = bnx2fc_update_src_mac;
+	hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
+	set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
+
+	rc = bnx2fc_netdev_setup(hba);
+	if (rc)
+		goto setup_err;
+
+	hba->next_conn_id = 0;
+
+	memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
+	hba->num_ofld_sess = 0;
+
+	return 0;
+
+setup_err:
+	fcoe_ctlr_destroy(&hba->ctlr);
+	dev_put(netdev);
+	bnx2fc_interface_put(hba);
+	return rc;
+}
+
+/**
+ * bnx2fc_if_create - Create FCoE instance on a given interface
+ *
+ * @hba:	FCoE interface to create a local port on
+ * @parent:	Device pointer to be the parent in sysfs for the SCSI host
+ * @npiv:	Indicates if the port is vport or not
+ *
+ * Creates a fc_lport instance and a Scsi_Host instance and configure them.
+ *
+ * Returns:	Allocated fc_lport or an error pointer
+ */
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
+				  struct device *parent, int npiv)
+{
+	struct fc_lport		*lport = NULL;
+	struct fcoe_port	*port;
+	struct Scsi_Host	*shost;
+	struct fc_vport		*vport = dev_to_vport(parent);
+	int			rc = 0;
+
+	/* Allocate Scsi_Host structure */
+	if (!npiv) {
+		lport = libfc_host_alloc(&bnx2fc_shost_template,
+					  sizeof(struct fcoe_port));
+	} else {
+		lport = libfc_vport_create(vport,
+					   sizeof(struct fcoe_port));
+	}
+
+	if (!lport) {
+		printk(KERN_ERR PFX "could not allocate scsi host structure\n");
+		return NULL;
+	}
+	shost = lport->host;
+	port = lport_priv(lport);
+	port->lport = lport;
+	port->priv = hba;
+	INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
+
+	/* Configure fcoe_port */
+	rc = bnx2fc_lport_config(lport);
+	if (rc)
+		goto lp_config_err;
+
+	if (npiv) {
+		vport = dev_to_vport(parent);
+		printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
+			vport->node_name, vport->port_name);
+		fc_set_wwnn(lport, vport->node_name);
+		fc_set_wwpn(lport, vport->port_name);
+	}
+	/* Configure netdev and networking properties of the lport */
+	rc = bnx2fc_net_config(lport);
+	if (rc) {
+		printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
+		goto lp_config_err;
+	}
+
+	rc = bnx2fc_shost_config(lport, parent);
+	if (rc) {
+		printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
+			hba->netdev->name);
+		goto lp_config_err;
+	}
+
+	/* Initialize the libfc library */
+	rc = bnx2fc_libfc_config(lport);
+	if (rc) {
+		printk(KERN_ERR PFX "Couldnt configure libfc\n");
+		goto shost_err;
+	}
+	fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+
+	/* Allocate exchange manager */
+	if (!npiv) {
+		rc = bnx2fc_em_config(lport);
+		if (rc) {
+			printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
+			goto shost_err;
+		}
+	}
+
+	bnx2fc_interface_get(hba);
+	return lport;
+
+shost_err:
+	scsi_remove_host(shost);
+lp_config_err:
+	scsi_host_put(lport->host);
+	return NULL;
+}
+
+static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
+{
+	/* Dont listen for Ethernet packets anymore */
+	__dev_remove_pack(&hba->fcoe_packet_type);
+	__dev_remove_pack(&hba->fip_packet_type);
+	synchronize_net();
+}
+
+static void bnx2fc_if_destroy(struct fc_lport *lport)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+
+	BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
+	/* Stop the transmit retry timer */
+	del_timer_sync(&port->timer);
+
+	/* Free existing transmit skbs */
+	fcoe_clean_pending_queue(lport);
+
+	bnx2fc_interface_put(hba);
+
+	/* Free queued packets for the receive thread */
+	bnx2fc_clean_rx_queue(lport);
+
+	/* Detach from scsi-ml */
+	fc_remove_host(lport->host);
+	scsi_remove_host(lport->host);
+
+	/*
+	 * Note that only the physical lport will have the exchange manager.
+	 * for vports, this function is NOP
+	 */
+	fc_exch_mgr_free(lport);
+
+	/* Free memory used by statistical counters */
+	fc_lport_free_stats(lport);
+
+	/* Release Scsi_Host */
+	scsi_host_put(lport->host);
+}
+
+/**
+ * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
+ *
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp:     The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_destroy(struct net_device *netdev)
+{
+	struct bnx2fc_hba *hba = NULL;
+	struct net_device *phys_dev;
+	int rc = 0;
+
+	if (!rtnl_trylock())
+		return restart_syscall();
+
+	mutex_lock(&bnx2fc_dev_lock);
+#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
+	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+		rc = -ENODEV;
+		goto netdev_err;
+	}
+#endif
+	/* obtain physical netdev */
+	if (netdev->priv_flags & IFF_802_1Q_VLAN)
+		phys_dev = vlan_dev_real_dev(netdev);
+	else {
+		printk(KERN_ERR PFX "Not a vlan device\n");
+		rc = -ENODEV;
+		goto netdev_err;
+	}
+
+	hba = bnx2fc_hba_lookup(phys_dev);
+	if (!hba || !hba->ctlr.lp) {
+		rc = -ENODEV;
+		printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
+		goto netdev_err;
+	}
+
+	if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+		printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
+		goto netdev_err;
+	}
+
+	bnx2fc_netdev_cleanup(hba);
+
+	bnx2fc_stop(hba);
+
+	bnx2fc_if_destroy(hba->ctlr.lp);
+
+	destroy_workqueue(hba->timer_work_queue);
+
+	if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
+		bnx2fc_fw_destroy(hba);
+
+	clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
+netdev_err:
+	mutex_unlock(&bnx2fc_dev_lock);
+	rtnl_unlock();
+	return rc;
+}
+
+static void bnx2fc_destroy_work(struct work_struct *work)
+{
+	struct fcoe_port *port;
+	struct fc_lport *lport;
+
+	port = container_of(work, struct fcoe_port, destroy_work);
+	lport = port->lport;
+
+	BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
+
+	bnx2fc_port_shutdown(lport);
+	rtnl_lock();
+	mutex_lock(&bnx2fc_dev_lock);
+	bnx2fc_if_destroy(lport);
+	mutex_unlock(&bnx2fc_dev_lock);
+	rtnl_unlock();
+}
+
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
+{
+	bnx2fc_free_fw_resc(hba);
+	bnx2fc_free_task_ctx(hba);
+}
+
+/**
+ * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
+ *			pci structure
+ *
+ * @hba:		Adapter instance
+ */
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
+{
+	if (bnx2fc_setup_task_ctx(hba))
+		goto mem_err;
+
+	if (bnx2fc_setup_fw_resc(hba))
+		goto mem_err;
+
+	return 0;
+mem_err:
+	bnx2fc_unbind_adapter_devices(hba);
+	return -ENOMEM;
+}
+
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
+{
+	struct cnic_dev *cnic;
+
+	if (!hba->cnic) {
+		printk(KERN_ERR PFX "cnic is NULL\n");
+		return -ENODEV;
+	}
+	cnic = hba->cnic;
+	hba->pcidev = cnic->pcidev;
+	if (hba->pcidev)
+		pci_dev_get(hba->pcidev);
+
+	return 0;
+}
+
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
+{
+	if (hba->pcidev)
+		pci_dev_put(hba->pcidev);
+	hba->pcidev = NULL;
+}
+
+
+
+/**
+ * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
+ *
+ * @handle:	transport handle pointing to adapter struture
+ *
+ * This function maps adapter structure to pcidev structure and initiates
+ *	firmware handshake to enable/initialize on-chip FCoE components.
+ *	This bnx2fc - cnic interface api callback is used after following
+ *	conditions are met -
+ *	a) underlying network interface is up (marked by event NETDEV_UP
+ *		from netdev
+ *	b) bnx2fc adatper structure is registered.
+ */
+static void bnx2fc_ulp_start(void *handle)
+{
+	struct bnx2fc_hba *hba = handle;
+	struct fc_lport *lport = hba->ctlr.lp;
+
+	BNX2FC_MISC_DBG("Entered %s\n", __func__);
+	mutex_lock(&bnx2fc_dev_lock);
+
+	if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
+		goto start_disc;
+
+	if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
+		bnx2fc_fw_init(hba);
+
+start_disc:
+	mutex_unlock(&bnx2fc_dev_lock);
+
+	BNX2FC_MISC_DBG("bnx2fc started.\n");
+
+	/* Kick off Fabric discovery*/
+	if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+		printk(KERN_ERR PFX "ulp_init: start discovery\n");
+		lport->tt.frame_send = bnx2fc_xmit;
+		bnx2fc_start_disc(hba);
+	}
+}
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport)
+{
+	BNX2FC_MISC_DBG("Entered %s\n", __func__);
+	fc_fabric_logoff(lport);
+	fc_lport_destroy(lport);
+}
+
+static void bnx2fc_stop(struct bnx2fc_hba *hba)
+{
+	struct fc_lport *lport;
+	struct fc_lport *vport;
+
+	BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
+		   hba->init_done);
+	if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
+	    test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+		lport = hba->ctlr.lp;
+		bnx2fc_port_shutdown(lport);
+		BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
+				"offloaded sessions\n",
+				hba->num_ofld_sess);
+		wait_event_interruptible(hba->shutdown_wait,
+					 (hba->num_ofld_sess == 0));
+		mutex_lock(&lport->lp_mutex);
+		list_for_each_entry(vport, &lport->vports, list)
+			fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
+		mutex_unlock(&lport->lp_mutex);
+		fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+		fcoe_ctlr_link_down(&hba->ctlr);
+		fcoe_clean_pending_queue(lport);
+
+		mutex_lock(&hba->hba_mutex);
+		clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+		clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+
+		clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+		mutex_unlock(&hba->hba_mutex);
+	}
+}
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
+{
+#define BNX2FC_INIT_POLL_TIME		(1000 / HZ)
+	int rc = -1;
+	int i = HZ;
+
+	rc = bnx2fc_bind_adapter_devices(hba);
+	if (rc) {
+		printk(KERN_ALERT PFX
+			"bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
+		goto err_out;
+	}
+
+	rc = bnx2fc_send_fw_fcoe_init_msg(hba);
+	if (rc) {
+		printk(KERN_ALERT PFX
+			"bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
+		goto err_unbind;
+	}
+
+	/*
+	 * Wait until the adapter init message is complete, and adapter
+	 * state is UP.
+	 */
+	while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
+		msleep(BNX2FC_INIT_POLL_TIME);
+
+	if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
+		printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
+				"Ignoring...\n",
+				hba->cnic->netdev->name);
+		rc = -1;
+		goto err_unbind;
+	}
+
+
+	/* Mark HBA to indicate that the FW INIT is done */
+	set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
+	return 0;
+
+err_unbind:
+	bnx2fc_unbind_adapter_devices(hba);
+err_out:
+	return rc;
+}
+
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
+{
+	if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+		if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
+			init_timer(&hba->destroy_timer);
+			hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
+								jiffies;
+			hba->destroy_timer.function = bnx2fc_destroy_timer;
+			hba->destroy_timer.data = (unsigned long)hba;
+			add_timer(&hba->destroy_timer);
+			wait_event_interruptible(hba->destroy_wait,
+						 (hba->flags &
+						  BNX2FC_FLAG_DESTROY_CMPL));
+			/* This should never happen */
+			if (signal_pending(current))
+				flush_signals(current);
+
+			del_timer_sync(&hba->destroy_timer);
+		}
+		bnx2fc_unbind_adapter_devices(hba);
+	}
+}
+
+/**
+ * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
+ *
+ * @handle:	transport handle pointing to adapter structure
+ *
+ * Driver checks if adapter is already in shutdown mode, if not start
+ *	the shutdown process.
+ */
+static void bnx2fc_ulp_stop(void *handle)
+{
+	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
+
+	printk(KERN_ERR "ULP_STOP\n");
+
+	mutex_lock(&bnx2fc_dev_lock);
+	bnx2fc_stop(hba);
+	bnx2fc_fw_destroy(hba);
+	mutex_unlock(&bnx2fc_dev_lock);
+}
+
+static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
+{
+	struct fc_lport *lport;
+	int wait_cnt = 0;
+
+	BNX2FC_MISC_DBG("Entered %s\n", __func__);
+	/* Kick off FIP/FLOGI */
+	if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+		printk(KERN_ERR PFX "Init not done yet\n");
+		return;
+	}
+
+	lport = hba->ctlr.lp;
+	BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
+
+	if (!bnx2fc_link_ok(lport)) {
+		BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
+		fcoe_ctlr_link_up(&hba->ctlr);
+		fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
+		set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+	}
+
+	/* wait for the FCF to be selected before issuing FLOGI */
+	while (!hba->ctlr.sel_fcf) {
+		msleep(250);
+		/* give up after 3 secs */
+		if (++wait_cnt > 12)
+			break;
+	}
+	fc_lport_init(lport);
+	fc_fabric_login(lport);
+}
+
+
+/**
+ * bnx2fc_ulp_init - Initialize an adapter instance
+ *
+ * @dev :	cnic device handle
+ * Called from cnic_register_driver() context to initialize all
+ *	enumerated cnic devices. This routine allocates adapter structure
+ *	and other device specific resources.
+ */
+static void bnx2fc_ulp_init(struct cnic_dev *dev)
+{
+	struct bnx2fc_hba *hba;
+	int rc = 0;
+
+	BNX2FC_MISC_DBG("Entered %s\n", __func__);
+	/* bnx2fc works only when bnx2x is loaded */
+	if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+		printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
+				    " flags: %lx\n",
+			dev->netdev->name, dev->flags);
+		return;
+	}
+
+	/* Configure FCoE interface */
+	hba = bnx2fc_interface_create(dev);
+	if (!hba) {
+		printk(KERN_ERR PFX "hba initialization failed\n");
+		return;
+	}
+
+	/* Add HBA to the adapter list */
+	mutex_lock(&bnx2fc_dev_lock);
+	list_add_tail(&hba->link, &adapter_list);
+	adapter_count++;
+	mutex_unlock(&bnx2fc_dev_lock);
+
+	clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+	rc = dev->register_device(dev, CNIC_ULP_FCOE,
+						(void *) hba);
+	if (rc)
+		printk(KERN_ALERT PFX "register_device failed, rc = %d\n", rc);
+	else
+		set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+}
+
+
+static int bnx2fc_disable(struct net_device *netdev)
+{
+	struct bnx2fc_hba *hba;
+	struct net_device *phys_dev;
+	struct ethtool_drvinfo drvinfo;
+	int rc = 0;
+
+	if (!rtnl_trylock()) {
+		printk(KERN_ERR PFX "retrying for rtnl_lock\n");
+		return -EIO;
+	}
+
+	mutex_lock(&bnx2fc_dev_lock);
+
+	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+		rc = -ENODEV;
+		goto nodev;
+	}
+
+	/* obtain physical netdev */
+	if (netdev->priv_flags & IFF_802_1Q_VLAN)
+		phys_dev = vlan_dev_real_dev(netdev);
+	else {
+		printk(KERN_ERR PFX "Not a vlan device\n");
+		rc = -ENODEV;
+		goto nodev;
+	}
+
+	/* verify if the physical device is a netxtreme2 device */
+	if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+		memset(&drvinfo, 0, sizeof(drvinfo));
+		phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+		if (strcmp(drvinfo.driver, "bnx2x")) {
+			printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+			rc = -ENODEV;
+			goto nodev;
+		}
+	} else {
+		printk(KERN_ERR PFX "unable to obtain drv_info\n");
+		rc = -ENODEV;
+		goto nodev;
+	}
+
+	printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
+
+	/* obtain hba and initialize rest of the structure */
+	hba = bnx2fc_hba_lookup(phys_dev);
+	if (!hba || !hba->ctlr.lp) {
+		rc = -ENODEV;
+		printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
+	} else {
+		fcoe_ctlr_link_down(&hba->ctlr);
+		fcoe_clean_pending_queue(hba->ctlr.lp);
+	}
+
+nodev:
+	mutex_unlock(&bnx2fc_dev_lock);
+	rtnl_unlock();
+	return rc;
+}
+
+
+static int bnx2fc_enable(struct net_device *netdev)
+{
+	struct bnx2fc_hba *hba;
+	struct net_device *phys_dev;
+	struct ethtool_drvinfo drvinfo;
+	int rc = 0;
+
+	if (!rtnl_trylock()) {
+		printk(KERN_ERR PFX "retrying for rtnl_lock\n");
+		return -EIO;
+	}
+
+	BNX2FC_MISC_DBG("Entered %s\n", __func__);
+	mutex_lock(&bnx2fc_dev_lock);
+
+	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+		rc = -ENODEV;
+		goto nodev;
+	}
+
+	/* obtain physical netdev */
+	if (netdev->priv_flags & IFF_802_1Q_VLAN)
+		phys_dev = vlan_dev_real_dev(netdev);
+	else {
+		printk(KERN_ERR PFX "Not a vlan device\n");
+		rc = -ENODEV;
+		goto nodev;
+	}
+	/* verify if the physical device is a netxtreme2 device */
+	if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+		memset(&drvinfo, 0, sizeof(drvinfo));
+		phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+		if (strcmp(drvinfo.driver, "bnx2x")) {
+			printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+			rc = -ENODEV;
+			goto nodev;
+		}
+	} else {
+		printk(KERN_ERR PFX "unable to obtain drv_info\n");
+		rc = -ENODEV;
+		goto nodev;
+	}
+
+	/* obtain hba and initialize rest of the structure */
+	hba = bnx2fc_hba_lookup(phys_dev);
+	if (!hba || !hba->ctlr.lp) {
+		rc = -ENODEV;
+		printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
+	} else if (!bnx2fc_link_ok(hba->ctlr.lp))
+		fcoe_ctlr_link_up(&hba->ctlr);
+
+nodev:
+	mutex_unlock(&bnx2fc_dev_lock);
+	rtnl_unlock();
+	return rc;
+}
+
+/**
+ * bnx2fc_create - Create bnx2fc FCoE interface
+ *
+ * @buffer: The name of Ethernet interface to create on
+ * @kp:     The associated kernel param
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
+{
+	struct bnx2fc_hba *hba;
+	struct net_device *phys_dev;
+	struct fc_lport *lport;
+	struct ethtool_drvinfo drvinfo;
+	int rc = 0;
+	int vlan_id;
+
+	BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
+	if (fip_mode != FIP_MODE_FABRIC) {
+		printk(KERN_ERR "fip mode not FABRIC\n");
+		return -EIO;
+	}
+
+	if (!rtnl_trylock()) {
+		printk(KERN_ERR "trying for rtnl_lock\n");
+		return -EIO;
+	}
+	mutex_lock(&bnx2fc_dev_lock);
+
+#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
+	if (THIS_MODULE->state != MODULE_STATE_LIVE) {
+		rc = -ENODEV;
+		goto mod_err;
+	}
+#endif
+
+	if (!try_module_get(THIS_MODULE)) {
+		rc = -EINVAL;
+		goto mod_err;
+	}
+
+	/* obtain physical netdev */
+	if (netdev->priv_flags & IFF_802_1Q_VLAN) {
+		phys_dev = vlan_dev_real_dev(netdev);
+		vlan_id = vlan_dev_vlan_id(netdev);
+	} else {
+		printk(KERN_ERR PFX "Not a vlan device\n");
+		rc = -EINVAL;
+		goto netdev_err;
+	}
+	/* verify if the physical device is a netxtreme2 device */
+	if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+		memset(&drvinfo, 0, sizeof(drvinfo));
+		phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+		if (strcmp(drvinfo.driver, "bnx2x")) {
+			printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+			rc = -EINVAL;
+			goto netdev_err;
+		}
+	} else {
+		printk(KERN_ERR PFX "unable to obtain drv_info\n");
+		rc = -EINVAL;
+		goto netdev_err;
+	}
+
+	/* obtain hba and initialize rest of the structure */
+	hba = bnx2fc_hba_lookup(phys_dev);
+	if (!hba) {
+		rc = -ENODEV;
+		printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
+		goto netdev_err;
+	}
+
+	if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
+		rc = bnx2fc_fw_init(hba);
+		if (rc)
+			goto netdev_err;
+	}
+
+	if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+		rc = -EEXIST;
+		goto netdev_err;
+	}
+
+	/* update netdev with vlan netdev */
+	hba->netdev = netdev;
+	hba->vlan_id = vlan_id;
+	hba->vlan_enabled = 1;
+
+	rc = bnx2fc_interface_setup(hba, fip_mode);
+	if (rc) {
+		printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
+		goto ifput_err;
+	}
+
+	hba->timer_work_queue =
+			create_singlethread_workqueue("bnx2fc_timer_wq");
+	if (!hba->timer_work_queue) {
+		printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
+		rc = -EINVAL;
+		goto ifput_err;
+	}
+
+	lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
+	if (!lport) {
+		printk(KERN_ERR PFX "Failed to create interface (%s)\n",
+			netdev->name);
+		bnx2fc_netdev_cleanup(hba);
+		rc = -EINVAL;
+		goto if_create_err;
+	}
+
+	lport->boot_time = jiffies;
+
+	/* Make this master N_port */
+	hba->ctlr.lp = lport;
+
+	set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
+	printk(KERN_ERR PFX "create: START DISC\n");
+	bnx2fc_start_disc(hba);
+	/*
+	 * Release from kref_init in bnx2fc_interface_setup, on success
+	 * lport should be holding a reference taken in bnx2fc_if_create
+	 */
+	bnx2fc_interface_put(hba);
+	/* put netdev that was held while calling dev_get_by_name */
+	mutex_unlock(&bnx2fc_dev_lock);
+	rtnl_unlock();
+	return 0;
+
+if_create_err:
+	destroy_workqueue(hba->timer_work_queue);
+ifput_err:
+	bnx2fc_interface_put(hba);
+netdev_err:
+	module_put(THIS_MODULE);
+mod_err:
+	mutex_unlock(&bnx2fc_dev_lock);
+	rtnl_unlock();
+	return rc;
+}
+
+/**
+ * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
+ *
+ * @cnic:	Pointer to cnic device instance
+ *
+ **/
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
+{
+	struct list_head *list;
+	struct list_head *temp;
+	struct bnx2fc_hba *hba;
+
+	/* Called with bnx2fc_dev_lock held */
+	list_for_each_safe(list, temp, &adapter_list) {
+		hba = (struct bnx2fc_hba *)list;
+		if (hba->cnic == cnic)
+			return hba;
+	}
+	return NULL;
+}
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
+{
+	struct list_head *list;
+	struct list_head *temp;
+	struct bnx2fc_hba *hba;
+
+	/* Called with bnx2fc_dev_lock held */
+	list_for_each_safe(list, temp, &adapter_list) {
+		hba = (struct bnx2fc_hba *)list;
+		if (hba->phys_dev == phys_dev)
+			return hba;
+	}
+	printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
+	return NULL;
+}
+
+/**
+ * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
+ *
+ * @dev		cnic device handle
+ */
+static void bnx2fc_ulp_exit(struct cnic_dev *dev)
+{
+	struct bnx2fc_hba *hba;
+
+	BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
+
+	if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+		printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
+			dev->netdev->name, dev->flags);
+		return;
+	}
+
+	mutex_lock(&bnx2fc_dev_lock);
+	hba = bnx2fc_find_hba_for_cnic(dev);
+	if (!hba) {
+		printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
+		       dev);
+		mutex_unlock(&bnx2fc_dev_lock);
+		return;
+	}
+
+	list_del_init(&hba->link);
+	adapter_count--;
+
+	if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
+		/* destroy not called yet, move to quiesced list */
+		bnx2fc_netdev_cleanup(hba);
+		bnx2fc_if_destroy(hba->ctlr.lp);
+	}
+	mutex_unlock(&bnx2fc_dev_lock);
+
+	bnx2fc_ulp_stop(hba);
+	/* unregister cnic device */
+	if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
+		hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
+	bnx2fc_interface_destroy(hba);
+}
+
+/**
+ * bnx2fc_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
+{
+	struct fc_lport *lport = shost_priv(shost);
+	fc_lport_reset(lport);
+	return 0;
+}
+
+
+static bool bnx2fc_match(struct net_device *netdev)
+{
+	mutex_lock(&bnx2fc_dev_lock);
+	if (netdev->priv_flags & IFF_802_1Q_VLAN) {
+		struct net_device *phys_dev = vlan_dev_real_dev(netdev);
+
+		if (bnx2fc_hba_lookup(phys_dev)) {
+			mutex_unlock(&bnx2fc_dev_lock);
+			return true;
+		}
+	}
+	mutex_unlock(&bnx2fc_dev_lock);
+	return false;
+}
+
+
+static struct fcoe_transport bnx2fc_transport = {
+	.name = {"bnx2fc"},
+	.attached = false,
+	.list = LIST_HEAD_INIT(bnx2fc_transport.list),
+	.match = bnx2fc_match,
+	.create = bnx2fc_create,
+	.destroy = bnx2fc_destroy,
+	.enable = bnx2fc_enable,
+	.disable = bnx2fc_disable,
+};
+
+/**
+ * bnx2fc_percpu_thread_create - Create a receive thread for an
+ *				 online CPU
+ *
+ * @cpu: cpu index for the online cpu
+ */
+static void bnx2fc_percpu_thread_create(unsigned int cpu)
+{
+	struct bnx2fc_percpu_s *p;
+	struct task_struct *thread;
+
+	p = &per_cpu(bnx2fc_percpu, cpu);
+
+	thread = kthread_create(bnx2fc_percpu_io_thread,
+				(void *)p,
+				"bnx2fc_thread/%d", cpu);
+	/* bind thread to the cpu */
+	if (likely(!IS_ERR(p->iothread))) {
+		kthread_bind(thread, cpu);
+		p->iothread = thread;
+		wake_up_process(thread);
+	}
+}
+
+static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
+{
+	struct bnx2fc_percpu_s *p;
+	struct task_struct *thread;
+	struct bnx2fc_work *work, *tmp;
+	LIST_HEAD(work_list);
+
+	BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
+
+	/* Prevent any new work from being queued for this CPU */
+	p = &per_cpu(bnx2fc_percpu, cpu);
+	spin_lock_bh(&p->fp_work_lock);
+	thread = p->iothread;
+	p->iothread = NULL;
+
+
+	/* Free all work in the list */
+	list_for_each_entry_safe(work, tmp, &work_list, list) {
+		list_del_init(&work->list);
+		bnx2fc_process_cq_compl(work->tgt, work->wqe);
+		kfree(work);
+	}
+
+	spin_unlock_bh(&p->fp_work_lock);
+
+	if (thread)
+		kthread_stop(thread);
+}
+
+/**
+ * bnx2fc_cpu_callback - Handler for CPU hotplug events
+ *
+ * @nfb:    The callback data block
+ * @action: The event triggering the callback
+ * @hcpu:   The index of the CPU that the event is for
+ *
+ * This creates or destroys per-CPU data for fcoe
+ *
+ * Returns NOTIFY_OK always.
+ */
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+			     unsigned long action, void *hcpu)
+{
+	unsigned cpu = (unsigned long)hcpu;
+
+	switch (action) {
+	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
+		printk(PFX "CPU %x online: Create Rx thread\n", cpu);
+		bnx2fc_percpu_thread_create(cpu);
+		break;
+	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
+		printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
+		bnx2fc_percpu_thread_destroy(cpu);
+		break;
+	default:
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+/**
+ * bnx2fc_mod_init - module init entry point
+ *
+ * Initialize driver wide global data structures, and register
+ * with cnic module
+ **/
+static int __init bnx2fc_mod_init(void)
+{
+	struct fcoe_percpu_s *bg;
+	struct task_struct *l2_thread;
+	int rc = 0;
+	unsigned int cpu = 0;
+	struct bnx2fc_percpu_s *p;
+
+	printk(KERN_INFO PFX "%s", version);
+
+	/* register as a fcoe transport */
+	rc = fcoe_transport_attach(&bnx2fc_transport);
+	if (rc) {
+		printk(KERN_ERR "failed to register an fcoe transport, check "
+			"if libfcoe is loaded\n");
+		goto out;
+	}
+
+	INIT_LIST_HEAD(&adapter_list);
+	mutex_init(&bnx2fc_dev_lock);
+	adapter_count = 0;
+
+	/* Attach FC transport template */
+	rc = bnx2fc_attach_transport();
+	if (rc)
+		goto detach_ft;
+
+	bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
+	if (!bnx2fc_wq) {
+		rc = -ENOMEM;
+		goto release_bt;
+	}
+
+	bg = &bnx2fc_global;
+	skb_queue_head_init(&bg->fcoe_rx_list);
+	l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
+				   (void *)bg,
+				   "bnx2fc_l2_thread");
+	if (IS_ERR(l2_thread)) {
+		rc = PTR_ERR(l2_thread);
+		goto free_wq;
+	}
+	wake_up_process(l2_thread);
+	spin_lock_bh(&bg->fcoe_rx_list.lock);
+	bg->thread = l2_thread;
+	spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+	for_each_possible_cpu(cpu) {
+		p = &per_cpu(bnx2fc_percpu, cpu);
+		INIT_LIST_HEAD(&p->work_list);
+		spin_lock_init(&p->fp_work_lock);
+	}
+
+	for_each_online_cpu(cpu) {
+		bnx2fc_percpu_thread_create(cpu);
+	}
+
+	/* Initialize per CPU interrupt thread */
+	register_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+	cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
+
+	return 0;
+
+free_wq:
+	destroy_workqueue(bnx2fc_wq);
+release_bt:
+	bnx2fc_release_transport();
+detach_ft:
+	fcoe_transport_detach(&bnx2fc_transport);
+out:
+	return rc;
+}
+
+static void __exit bnx2fc_mod_exit(void)
+{
+	LIST_HEAD(to_be_deleted);
+	struct bnx2fc_hba *hba, *next;
+	struct fcoe_percpu_s *bg;
+	struct task_struct *l2_thread;
+	struct sk_buff *skb;
+	unsigned int cpu = 0;
+
+	/*
+	 * NOTE: Since cnic calls register_driver routine rtnl_lock,
+	 * it will have higher precedence than bnx2fc_dev_lock.
+	 * unregister_device() cannot be called with bnx2fc_dev_lock
+	 * held.
+	 */
+	mutex_lock(&bnx2fc_dev_lock);
+	list_splice(&adapter_list, &to_be_deleted);
+	INIT_LIST_HEAD(&adapter_list);
+	adapter_count = 0;
+	mutex_unlock(&bnx2fc_dev_lock);
+
+	/* Unregister with cnic */
+	list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
+		list_del_init(&hba->link);
+		printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
+			hba, atomic_read(&hba->kref.refcount));
+		bnx2fc_ulp_stop(hba);
+		/* unregister cnic device */
+		if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
+				       &hba->reg_with_cnic))
+			hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
+		bnx2fc_interface_destroy(hba);
+	}
+	cnic_unregister_driver(CNIC_ULP_FCOE);
+
+	/* Destroy global thread */
+	bg = &bnx2fc_global;
+	spin_lock_bh(&bg->fcoe_rx_list.lock);
+	l2_thread = bg->thread;
+	bg->thread = NULL;
+	while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
+		kfree_skb(skb);
+
+	spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+	if (l2_thread)
+		kthread_stop(l2_thread);
+
+	unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+	/* Destroy per cpu threads */
+	for_each_online_cpu(cpu) {
+		bnx2fc_percpu_thread_destroy(cpu);
+	}
+
+	destroy_workqueue(bnx2fc_wq);
+	/*
+	 * detach from scsi transport
+	 * must happen after all destroys are done
+	 */
+	bnx2fc_release_transport();
+
+	/* detach from fcoe transport */
+	fcoe_transport_detach(&bnx2fc_transport);
+}
+
+module_init(bnx2fc_mod_init);
+module_exit(bnx2fc_mod_exit);
+
+static struct fc_function_template bnx2fc_transport_function = {
+	.show_host_node_name = 1,
+	.show_host_port_name = 1,
+	.show_host_supported_classes = 1,
+	.show_host_supported_fc4s = 1,
+	.show_host_active_fc4s = 1,
+	.show_host_maxframe_size = 1,
+
+	.show_host_port_id = 1,
+	.show_host_supported_speeds = 1,
+	.get_host_speed = fc_get_host_speed,
+	.show_host_speed = 1,
+	.show_host_port_type = 1,
+	.get_host_port_state = fc_get_host_port_state,
+	.show_host_port_state = 1,
+	.show_host_symbolic_name = 1,
+
+	.dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+				sizeof(struct bnx2fc_rport)),
+	.show_rport_maxframe_size = 1,
+	.show_rport_supported_classes = 1,
+
+	.show_host_fabric_name = 1,
+	.show_starget_node_name = 1,
+	.show_starget_port_name = 1,
+	.show_starget_port_id = 1,
+	.set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+	.show_rport_dev_loss_tmo = 1,
+	.get_fc_host_stats = bnx2fc_get_host_stats,
+
+	.issue_fc_host_lip = bnx2fc_fcoe_reset,
+
+	.terminate_rport_io = fc_rport_terminate_io,
+
+	.vport_create = bnx2fc_vport_create,
+	.vport_delete = bnx2fc_vport_destroy,
+	.vport_disable = bnx2fc_vport_disable,
+};
+
+static struct fc_function_template bnx2fc_vport_xport_function = {
+	.show_host_node_name = 1,
+	.show_host_port_name = 1,
+	.show_host_supported_classes = 1,
+	.show_host_supported_fc4s = 1,
+	.show_host_active_fc4s = 1,
+	.show_host_maxframe_size = 1,
+
+	.show_host_port_id = 1,
+	.show_host_supported_speeds = 1,
+	.get_host_speed = fc_get_host_speed,
+	.show_host_speed = 1,
+	.show_host_port_type = 1,
+	.get_host_port_state = fc_get_host_port_state,
+	.show_host_port_state = 1,
+	.show_host_symbolic_name = 1,
+
+	.dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+				sizeof(struct bnx2fc_rport)),
+	.show_rport_maxframe_size = 1,
+	.show_rport_supported_classes = 1,
+
+	.show_host_fabric_name = 1,
+	.show_starget_node_name = 1,
+	.show_starget_port_name = 1,
+	.show_starget_port_id = 1,
+	.set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+	.show_rport_dev_loss_tmo = 1,
+	.get_fc_host_stats = fc_get_host_stats,
+	.issue_fc_host_lip = bnx2fc_fcoe_reset,
+	.terminate_rport_io = fc_rport_terminate_io,
+};
+
+/**
+ * scsi_host_template structure used while registering with SCSI-ml
+ */
+static struct scsi_host_template bnx2fc_shost_template = {
+	.module			= THIS_MODULE,
+	.name			= "Broadcom Offload FCoE Initiator",
+	.queuecommand		= bnx2fc_queuecommand,
+	.eh_abort_handler	= bnx2fc_eh_abort,	  /* abts */
+	.eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
+	.eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
+	.eh_host_reset_handler	= fc_eh_host_reset,
+	.slave_alloc		= fc_slave_alloc,
+	.change_queue_depth	= fc_change_queue_depth,
+	.change_queue_type	= fc_change_queue_type,
+	.this_id		= -1,
+	.cmd_per_lun		= 3,
+	.can_queue		= (BNX2FC_MAX_OUTSTANDING_CMNDS/2),
+	.use_clustering		= ENABLE_CLUSTERING,
+	.sg_tablesize		= BNX2FC_MAX_BDS_PER_CMD,
+	.max_sectors		= 512,
+};
+
+static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
+	.frame_send		= bnx2fc_xmit,
+	.elsct_send		= bnx2fc_elsct_send,
+	.fcp_abort_io		= bnx2fc_abort_io,
+	.fcp_cleanup		= bnx2fc_cleanup,
+	.rport_event_callback	= bnx2fc_rport_event_handler,
+};
+
+/**
+ * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
+ *			structure carrying callback function pointers
+ */
+static struct cnic_ulp_ops bnx2fc_cnic_cb = {
+	.owner			= THIS_MODULE,
+	.cnic_init		= bnx2fc_ulp_init,
+	.cnic_exit		= bnx2fc_ulp_exit,
+	.cnic_start		= bnx2fc_ulp_start,
+	.cnic_stop		= bnx2fc_ulp_stop,
+	.indicate_kcqes		= bnx2fc_indicate_kcqe,
+	.indicate_netevent	= bnx2fc_indicate_netevent,
+};

drivers/scsi/bnx2fc/bnx2fc_hwi.c

@@ -0,0 +1,1868 @@
+/* bnx2fc_hwi.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that low level functions that interact
+ * with 57712 FCoE firmware.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *new_cqe_kcqe);
+static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *ofld_kcqe);
+static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
+						struct fcoe_kcqe *ofld_kcqe);
+static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code);
+static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *conn_destroy);
+
+int bnx2fc_send_stat_req(struct bnx2fc_hba *hba)
+{
+	struct fcoe_kwqe_stat stat_req;
+	struct kwqe *kwqe_arr[2];
+	int num_kwqes = 1;
+	int rc = 0;
+
+	memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat));
+	stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT;
+	stat_req.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	stat_req.stat_params_addr_lo = (u32) hba->stats_buf_dma;
+	stat_req.stat_params_addr_hi = (u32) ((u64)hba->stats_buf_dma >> 32);
+
+	kwqe_arr[0] = (struct kwqe *) &stat_req;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+	return rc;
+}
+
+/**
+ * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w
+ *
+ * @hba:	adapter structure pointer
+ *
+ * Send down FCoE firmware init KWQEs which initiates the initial handshake
+ *	with the f/w.
+ *
+ */
+int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
+{
+	struct fcoe_kwqe_init1 fcoe_init1;
+	struct fcoe_kwqe_init2 fcoe_init2;
+	struct fcoe_kwqe_init3 fcoe_init3;
+	struct kwqe *kwqe_arr[3];
+	int num_kwqes = 3;
+	int rc = 0;
+
+	if (!hba->cnic) {
+		printk(KERN_ALERT PFX "hba->cnic NULL during fcoe fw init\n");
+		return -ENODEV;
+	}
+
+	/* fill init1 KWQE */
+	memset(&fcoe_init1, 0x00, sizeof(struct fcoe_kwqe_init1));
+	fcoe_init1.hdr.op_code = FCOE_KWQE_OPCODE_INIT1;
+	fcoe_init1.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+					FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	fcoe_init1.num_tasks = BNX2FC_MAX_TASKS;
+	fcoe_init1.sq_num_wqes = BNX2FC_SQ_WQES_MAX;
+	fcoe_init1.rq_num_wqes = BNX2FC_RQ_WQES_MAX;
+	fcoe_init1.rq_buffer_log_size = BNX2FC_RQ_BUF_LOG_SZ;
+	fcoe_init1.cq_num_wqes = BNX2FC_CQ_WQES_MAX;
+	fcoe_init1.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
+	fcoe_init1.dummy_buffer_addr_hi = (u32) ((u64)hba->dummy_buf_dma >> 32);
+	fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
+	fcoe_init1.task_list_pbl_addr_hi =
+				(u32) ((u64) hba->task_ctx_bd_dma >> 32);
+	fcoe_init1.mtu = hba->netdev->mtu;
+
+	fcoe_init1.flags = (PAGE_SHIFT <<
+				FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
+
+	fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG;
+
+	/* fill init2 KWQE */
+	memset(&fcoe_init2, 0x00, sizeof(struct fcoe_kwqe_init2));
+	fcoe_init2.hdr.op_code = FCOE_KWQE_OPCODE_INIT2;
+	fcoe_init2.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+					FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	fcoe_init2.hash_tbl_pbl_addr_lo = (u32) hba->hash_tbl_pbl_dma;
+	fcoe_init2.hash_tbl_pbl_addr_hi = (u32)
+					   ((u64) hba->hash_tbl_pbl_dma >> 32);
+
+	fcoe_init2.t2_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_dma;
+	fcoe_init2.t2_hash_tbl_addr_hi = (u32)
+					  ((u64) hba->t2_hash_tbl_dma >> 32);
+
+	fcoe_init2.t2_ptr_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_ptr_dma;
+	fcoe_init2.t2_ptr_hash_tbl_addr_hi = (u32)
+					((u64) hba->t2_hash_tbl_ptr_dma >> 32);
+
+	fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS;
+
+	/* fill init3 KWQE */
+	memset(&fcoe_init3, 0x00, sizeof(struct fcoe_kwqe_init3));
+	fcoe_init3.hdr.op_code = FCOE_KWQE_OPCODE_INIT3;
+	fcoe_init3.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+					FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+	fcoe_init3.error_bit_map_lo = 0xffffffff;
+	fcoe_init3.error_bit_map_hi = 0xffffffff;
+
+
+	kwqe_arr[0] = (struct kwqe *) &fcoe_init1;
+	kwqe_arr[1] = (struct kwqe *) &fcoe_init2;
+	kwqe_arr[2] = (struct kwqe *) &fcoe_init3;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+	return rc;
+}
+int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba)
+{
+	struct fcoe_kwqe_destroy fcoe_destroy;
+	struct kwqe *kwqe_arr[2];
+	int num_kwqes = 1;
+	int rc = -1;
+
+	/* fill destroy KWQE */
+	memset(&fcoe_destroy, 0x00, sizeof(struct fcoe_kwqe_destroy));
+	fcoe_destroy.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY;
+	fcoe_destroy.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
+					FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+	kwqe_arr[0] = (struct kwqe *) &fcoe_destroy;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+	return rc;
+}
+
+/**
+ * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process
+ *
+ * @port:		port structure pointer
+ * @tgt:		bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
+					struct bnx2fc_rport *tgt)
+{
+	struct fc_lport *lport = port->lport;
+	struct bnx2fc_hba *hba = port->priv;
+	struct kwqe *kwqe_arr[4];
+	struct fcoe_kwqe_conn_offload1 ofld_req1;
+	struct fcoe_kwqe_conn_offload2 ofld_req2;
+	struct fcoe_kwqe_conn_offload3 ofld_req3;
+	struct fcoe_kwqe_conn_offload4 ofld_req4;
+	struct fc_rport_priv *rdata = tgt->rdata;
+	struct fc_rport *rport = tgt->rport;
+	int num_kwqes = 4;
+	u32 port_id;
+	int rc = 0;
+	u16 conn_id;
+
+	/* Initialize offload request 1 structure */
+	memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1));
+
+	ofld_req1.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN1;
+	ofld_req1.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+
+	conn_id = (u16)tgt->fcoe_conn_id;
+	ofld_req1.fcoe_conn_id = conn_id;
+
+
+	ofld_req1.sq_addr_lo = (u32) tgt->sq_dma;
+	ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32);
+
+	ofld_req1.rq_pbl_addr_lo = (u32) tgt->rq_pbl_dma;
+	ofld_req1.rq_pbl_addr_hi = (u32)((u64) tgt->rq_pbl_dma >> 32);
+
+	ofld_req1.rq_first_pbe_addr_lo = (u32) tgt->rq_dma;
+	ofld_req1.rq_first_pbe_addr_hi =
+				(u32)((u64) tgt->rq_dma >> 32);
+
+	ofld_req1.rq_prod = 0x8000;
+
+	/* Initialize offload request 2 structure */
+	memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2));
+
+	ofld_req2.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN2;
+	ofld_req2.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size;
+
+	ofld_req2.cq_addr_lo = (u32) tgt->cq_dma;
+	ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32);
+
+	ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma;
+	ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32);
+
+	ofld_req2.conn_db_addr_lo = (u32)tgt->conn_db_dma;
+	ofld_req2.conn_db_addr_hi = (u32)((u64)tgt->conn_db_dma >> 32);
+
+	/* Initialize offload request 3 structure */
+	memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3));
+
+	ofld_req3.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN3;
+	ofld_req3.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	ofld_req3.vlan_tag = hba->vlan_id <<
+				FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT;
+	ofld_req3.vlan_tag |= 3 << FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT;
+
+	port_id = fc_host_port_id(lport->host);
+	if (port_id == 0) {
+		BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Store s_id of the initiator for further reference. This will
+	 * be used during disable/destroy during linkdown processing as
+	 * when the lport is reset, the port_id also is reset to 0
+	 */
+	tgt->sid = port_id;
+	ofld_req3.s_id[0] = (port_id & 0x000000FF);
+	ofld_req3.s_id[1] = (port_id & 0x0000FF00) >> 8;
+	ofld_req3.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+	port_id = rport->port_id;
+	ofld_req3.d_id[0] = (port_id & 0x000000FF);
+	ofld_req3.d_id[1] = (port_id & 0x0000FF00) >> 8;
+	ofld_req3.d_id[2] = (port_id & 0x00FF0000) >> 16;
+
+	ofld_req3.tx_total_conc_seqs = rdata->max_seq;
+
+	ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq;
+	ofld_req3.rx_max_fc_pay_len  = lport->mfs;
+
+	ofld_req3.rx_total_conc_seqs = BNX2FC_MAX_SEQS;
+	ofld_req3.rx_max_conc_seqs_c3 = BNX2FC_MAX_SEQS;
+	ofld_req3.rx_open_seqs_exch_c3 = 1;
+
+	ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma;
+	ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32);
+
+	/* set mul_n_port_ids supported flag to 0, until it is supported */
+	ofld_req3.flags = 0;
+	/*
+	ofld_req3.flags |= (((lport->send_sp_features & FC_SP_FT_MNA) ? 1:0) <<
+			    FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT);
+	*/
+	/* Info from PLOGI response */
+	ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_EDTR) ? 1 : 0) <<
+			     FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT);
+
+	ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
+			     FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
+
+	/* vlan flag */
+	ofld_req3.flags |= (hba->vlan_enabled <<
+			    FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);
+
+	/* C2_VALID and ACK flags are not set as they are not suppported */
+
+
+	/* Initialize offload request 4 structure */
+	memset(&ofld_req4, 0x00, sizeof(struct fcoe_kwqe_conn_offload4));
+	ofld_req4.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN4;
+	ofld_req4.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20;
+
+
+	ofld_req4.src_mac_addr_lo32[0] =  port->data_src_addr[5];
+							/* local mac */
+	ofld_req4.src_mac_addr_lo32[1] =  port->data_src_addr[4];
+	ofld_req4.src_mac_addr_lo32[2] =  port->data_src_addr[3];
+	ofld_req4.src_mac_addr_lo32[3] =  port->data_src_addr[2];
+	ofld_req4.src_mac_addr_hi16[0] =  port->data_src_addr[1];
+	ofld_req4.src_mac_addr_hi16[1] =  port->data_src_addr[0];
+	ofld_req4.dst_mac_addr_lo32[0] =  hba->ctlr.dest_addr[5];/* fcf mac */
+	ofld_req4.dst_mac_addr_lo32[1] =  hba->ctlr.dest_addr[4];
+	ofld_req4.dst_mac_addr_lo32[2] =  hba->ctlr.dest_addr[3];
+	ofld_req4.dst_mac_addr_lo32[3] =  hba->ctlr.dest_addr[2];
+	ofld_req4.dst_mac_addr_hi16[0] =  hba->ctlr.dest_addr[1];
+	ofld_req4.dst_mac_addr_hi16[1] =  hba->ctlr.dest_addr[0];
+
+	ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
+	ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
+
+	ofld_req4.confq_pbl_base_addr_lo = (u32) tgt->confq_pbl_dma;
+	ofld_req4.confq_pbl_base_addr_hi =
+					(u32)((u64) tgt->confq_pbl_dma >> 32);
+
+	kwqe_arr[0] = (struct kwqe *) &ofld_req1;
+	kwqe_arr[1] = (struct kwqe *) &ofld_req2;
+	kwqe_arr[2] = (struct kwqe *) &ofld_req3;
+	kwqe_arr[3] = (struct kwqe *) &ofld_req4;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+	return rc;
+}
+
+/**
+ * bnx2fc_send_session_enable_req - initiates FCoE Session enablement
+ *
+ * @port:		port structure pointer
+ * @tgt:		bnx2fc_rport structure pointer
+ */
+static int bnx2fc_send_session_enable_req(struct fcoe_port *port,
+					struct bnx2fc_rport *tgt)
+{
+	struct kwqe *kwqe_arr[2];
+	struct bnx2fc_hba *hba = port->priv;
+	struct fcoe_kwqe_conn_enable_disable enbl_req;
+	struct fc_lport *lport = port->lport;
+	struct fc_rport *rport = tgt->rport;
+	int num_kwqes = 1;
+	int rc = 0;
+	u32 port_id;
+
+	memset(&enbl_req, 0x00,
+	       sizeof(struct fcoe_kwqe_conn_enable_disable));
+	enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN;
+	enbl_req.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	enbl_req.src_mac_addr_lo32[0] =  port->data_src_addr[5];
+							/* local mac */
+	enbl_req.src_mac_addr_lo32[1] =  port->data_src_addr[4];
+	enbl_req.src_mac_addr_lo32[2] =  port->data_src_addr[3];
+	enbl_req.src_mac_addr_lo32[3] =  port->data_src_addr[2];
+	enbl_req.src_mac_addr_hi16[0] =  port->data_src_addr[1];
+	enbl_req.src_mac_addr_hi16[1] =  port->data_src_addr[0];
+
+	enbl_req.dst_mac_addr_lo32[0] =  hba->ctlr.dest_addr[5];/* fcf mac */
+	enbl_req.dst_mac_addr_lo32[1] =  hba->ctlr.dest_addr[4];
+	enbl_req.dst_mac_addr_lo32[2] =  hba->ctlr.dest_addr[3];
+	enbl_req.dst_mac_addr_lo32[3] =  hba->ctlr.dest_addr[2];
+	enbl_req.dst_mac_addr_hi16[0] =  hba->ctlr.dest_addr[1];
+	enbl_req.dst_mac_addr_hi16[1] =  hba->ctlr.dest_addr[0];
+
+	port_id = fc_host_port_id(lport->host);
+	if (port_id != tgt->sid) {
+		printk(KERN_ERR PFX "WARN: enable_req port_id = 0x%x,"
+				"sid = 0x%x\n", port_id, tgt->sid);
+		port_id = tgt->sid;
+	}
+	enbl_req.s_id[0] = (port_id & 0x000000FF);
+	enbl_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
+	enbl_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+	port_id = rport->port_id;
+	enbl_req.d_id[0] = (port_id & 0x000000FF);
+	enbl_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
+	enbl_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
+	enbl_req.vlan_tag = hba->vlan_id <<
+				FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
+	enbl_req.vlan_tag |= 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
+	enbl_req.vlan_flag = hba->vlan_enabled;
+	enbl_req.context_id = tgt->context_id;
+	enbl_req.conn_id = tgt->fcoe_conn_id;
+
+	kwqe_arr[0] = (struct kwqe *) &enbl_req;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+	return rc;
+}
+
+/**
+ * bnx2fc_send_session_disable_req - initiates FCoE Session disable
+ *
+ * @port:		port structure pointer
+ * @tgt:		bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_disable_req(struct fcoe_port *port,
+				    struct bnx2fc_rport *tgt)
+{
+	struct bnx2fc_hba *hba = port->priv;
+	struct fcoe_kwqe_conn_enable_disable disable_req;
+	struct kwqe *kwqe_arr[2];
+	struct fc_rport *rport = tgt->rport;
+	int num_kwqes = 1;
+	int rc = 0;
+	u32 port_id;
+
+	memset(&disable_req, 0x00,
+	       sizeof(struct fcoe_kwqe_conn_enable_disable));
+	disable_req.hdr.op_code = FCOE_KWQE_OPCODE_DISABLE_CONN;
+	disable_req.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	disable_req.src_mac_addr_lo32[0] =  port->data_src_addr[5];
+	disable_req.src_mac_addr_lo32[2] =  port->data_src_addr[3];
+	disable_req.src_mac_addr_lo32[3] =  port->data_src_addr[2];
+	disable_req.src_mac_addr_hi16[0] =  port->data_src_addr[1];
+	disable_req.src_mac_addr_hi16[1] =  port->data_src_addr[0];
+
+	disable_req.dst_mac_addr_lo32[0] =  hba->ctlr.dest_addr[5];/* fcf mac */
+	disable_req.dst_mac_addr_lo32[1] =  hba->ctlr.dest_addr[4];
+	disable_req.dst_mac_addr_lo32[2] =  hba->ctlr.dest_addr[3];
+	disable_req.dst_mac_addr_lo32[3] =  hba->ctlr.dest_addr[2];
+	disable_req.dst_mac_addr_hi16[0] =  hba->ctlr.dest_addr[1];
+	disable_req.dst_mac_addr_hi16[1] =  hba->ctlr.dest_addr[0];
+
+	port_id = tgt->sid;
+	disable_req.s_id[0] = (port_id & 0x000000FF);
+	disable_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
+	disable_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
+
+
+	port_id = rport->port_id;
+	disable_req.d_id[0] = (port_id & 0x000000FF);
+	disable_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
+	disable_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
+	disable_req.context_id = tgt->context_id;
+	disable_req.conn_id = tgt->fcoe_conn_id;
+	disable_req.vlan_tag = hba->vlan_id <<
+				FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
+	disable_req.vlan_tag |=
+			3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
+	disable_req.vlan_flag = hba->vlan_enabled;
+
+	kwqe_arr[0] = (struct kwqe *) &disable_req;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+	return rc;
+}
+
+/**
+ * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy
+ *
+ * @port:		port structure pointer
+ * @tgt:		bnx2fc_rport structure pointer
+ */
+int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
+					struct bnx2fc_rport *tgt)
+{
+	struct fcoe_kwqe_conn_destroy destroy_req;
+	struct kwqe *kwqe_arr[2];
+	int num_kwqes = 1;
+	int rc = 0;
+
+	memset(&destroy_req, 0x00, sizeof(struct fcoe_kwqe_conn_destroy));
+	destroy_req.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY_CONN;
+	destroy_req.hdr.flags =
+		(FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
+
+	destroy_req.context_id = tgt->context_id;
+	destroy_req.conn_id = tgt->fcoe_conn_id;
+
+	kwqe_arr[0] = (struct kwqe *) &destroy_req;
+
+	if (hba->cnic && hba->cnic->submit_kwqes)
+		rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
+
+	return rc;
+}
+
+static void bnx2fc_unsol_els_work(struct work_struct *work)
+{
+	struct bnx2fc_unsol_els *unsol_els;
+	struct fc_lport *lport;
+	struct fc_frame *fp;
+
+	unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work);
+	lport = unsol_els->lport;
+	fp = unsol_els->fp;
+	fc_exch_recv(lport, fp);
+	kfree(unsol_els);
+}
+
+void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
+				   unsigned char *buf,
+				   u32 frame_len, u16 l2_oxid)
+{
+	struct fcoe_port *port = tgt->port;
+	struct fc_lport *lport = port->lport;
+	struct bnx2fc_unsol_els *unsol_els;
+	struct fc_frame_header *fh;
+	struct fc_frame *fp;
+	struct sk_buff *skb;
+	u32 payload_len;
+	u32 crc;
+	u8 op;
+
+
+	unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC);
+	if (!unsol_els) {
+		BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n");
+		return;
+	}
+
+	BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n",
+		l2_oxid, frame_len);
+
+	payload_len = frame_len - sizeof(struct fc_frame_header);
+
+	fp = fc_frame_alloc(lport, payload_len);
+	if (!fp) {
+		printk(KERN_ERR PFX "fc_frame_alloc failure\n");
+		return;
+	}
+
+	fh = (struct fc_frame_header *) fc_frame_header_get(fp);
+	/* Copy FC Frame header and payload into the frame */
+	memcpy(fh, buf, frame_len);
+
+	if (l2_oxid != FC_XID_UNKNOWN)
+		fh->fh_ox_id = htons(l2_oxid);
+
+	skb = fp_skb(fp);
+
+	if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) ||
+	    (fh->fh_r_ctl == FC_RCTL_ELS_REP)) {
+
+		if (fh->fh_type == FC_TYPE_ELS) {
+			op = fc_frame_payload_op(fp);
+			if ((op == ELS_TEST) ||	(op == ELS_ESTC) ||
+			    (op == ELS_FAN) || (op == ELS_CSU)) {
+				/*
+				 * No need to reply for these
+				 * ELS requests
+				 */
+				printk(KERN_ERR PFX "dropping ELS 0x%x\n", op);
+				kfree_skb(skb);
+				return;
+			}
+		}
+		crc = fcoe_fc_crc(fp);
+		fc_frame_init(fp);
+		fr_dev(fp) = lport;
+		fr_sof(fp) = FC_SOF_I3;
+		fr_eof(fp) = FC_EOF_T;
+		fr_crc(fp) = cpu_to_le32(~crc);
+		unsol_els->lport = lport;
+		unsol_els->fp = fp;
+		INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work);
+		queue_work(bnx2fc_wq, &unsol_els->unsol_els_work);
+	} else {
+		BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl);
+		kfree_skb(skb);
+	}
+}
+
+static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
+{
+	u8 num_rq;
+	struct fcoe_err_report_entry *err_entry;
+	unsigned char *rq_data;
+	unsigned char *buf = NULL, *buf1;
+	int i;
+	u16 xid;
+	u32 frame_len, len;
+	struct bnx2fc_cmd *io_req = NULL;
+	struct fcoe_task_ctx_entry *task, *task_page;
+	struct bnx2fc_hba *hba = tgt->port->priv;
+	int task_idx, index;
+	int rc = 0;
+
+
+	BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
+	switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
+	case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
+		frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
+			     FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
+
+		num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
+
+		rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
+		if (rq_data) {
+			buf = rq_data;
+		} else {
+			buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
+					      GFP_ATOMIC);
+
+			if (!buf1) {
+				BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
+				break;
+			}
+
+			for (i = 0; i < num_rq; i++) {
+				rq_data = (unsigned char *)
+					   bnx2fc_get_next_rqe(tgt, 1);
+				len = BNX2FC_RQ_BUF_SZ;
+				memcpy(buf1, rq_data, len);
+				buf1 += len;
+			}
+		}
+		bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
+					      FC_XID_UNKNOWN);
+
+		if (buf != rq_data)
+			kfree(buf);
+		bnx2fc_return_rqe(tgt, num_rq);
+		break;
+
+	case FCOE_ERROR_DETECTION_CQE_TYPE:
+		/*
+		 *In case of error reporting CQE a single RQ entry
+		 * is consumes.
+		 */
+		spin_lock_bh(&tgt->tgt_lock);
+		num_rq = 1;
+		err_entry = (struct fcoe_err_report_entry *)
+			     bnx2fc_get_next_rqe(tgt, 1);
+		xid = err_entry->fc_hdr.ox_id;
+		BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
+		BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
+			err_entry->err_warn_bitmap_hi,
+			err_entry->err_warn_bitmap_lo);
+		BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
+			err_entry->tx_buf_off, err_entry->rx_buf_off);
+
+		bnx2fc_return_rqe(tgt, 1);
+
+		if (xid > BNX2FC_MAX_XID) {
+			BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
+				   xid);
+			spin_unlock_bh(&tgt->tgt_lock);
+			break;
+		}
+
+		task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+		index = xid % BNX2FC_TASKS_PER_PAGE;
+		task_page = (struct fcoe_task_ctx_entry *)
+						hba->task_ctx[task_idx];
+		task = &(task_page[index]);
+
+		io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+		if (!io_req) {
+			spin_unlock_bh(&tgt->tgt_lock);
+			break;
+		}
+
+		if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
+			printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
+			spin_unlock_bh(&tgt->tgt_lock);
+			break;
+		}
+
+		if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
+				       &io_req->req_flags)) {
+			BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
+					    "progress.. ignore unsol err\n");
+			spin_unlock_bh(&tgt->tgt_lock);
+			break;
+		}
+
+		/*
+		 * If ABTS is already in progress, and FW error is
+		 * received after that, do not cancel the timeout_work
+		 * and let the error recovery continue by explicitly
+		 * logging out the target, when the ABTS eventually
+		 * times out.
+		 */
+		if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+				      &io_req->req_flags)) {
+			/*
+			 * Cancel the timeout_work, as we received IO
+			 * completion with FW error.
+			 */
+			if (cancel_delayed_work(&io_req->timeout_work))
+				kref_put(&io_req->refcount,
+					 bnx2fc_cmd_release); /* timer hold */
+
+			rc = bnx2fc_initiate_abts(io_req);
+			if (rc != SUCCESS) {
+				BNX2FC_IO_DBG(io_req, "err_warn: initiate_abts "
+					"failed. issue cleanup\n");
+				rc = bnx2fc_initiate_cleanup(io_req);
+				BUG_ON(rc);
+			}
+		} else
+			printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
+					    "in ABTS processing\n", xid);
+		spin_unlock_bh(&tgt->tgt_lock);
+		break;
+
+	case FCOE_WARNING_DETECTION_CQE_TYPE:
+		/*
+		 *In case of warning reporting CQE a single RQ entry
+		 * is consumes.
+		 */
+		num_rq = 1;
+		err_entry = (struct fcoe_err_report_entry *)
+			     bnx2fc_get_next_rqe(tgt, 1);
+		xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
+		BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
+		BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
+			err_entry->err_warn_bitmap_hi,
+			err_entry->err_warn_bitmap_lo);
+		BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
+			err_entry->tx_buf_off, err_entry->rx_buf_off);
+
+		bnx2fc_return_rqe(tgt, 1);
+		break;
+
+	default:
+		printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
+		break;
+	}
+}
+
+void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe)
+{
+	struct fcoe_task_ctx_entry *task;
+	struct fcoe_task_ctx_entry *task_page;
+	struct fcoe_port *port = tgt->port;
+	struct bnx2fc_hba *hba = port->priv;
+	struct bnx2fc_cmd *io_req;
+	int task_idx, index;
+	u16 xid;
+	u8  cmd_type;
+	u8 rx_state = 0;
+	u8 num_rq;
+
+	spin_lock_bh(&tgt->tgt_lock);
+	xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
+	if (xid >= BNX2FC_MAX_TASKS) {
+		printk(KERN_ALERT PFX "ERROR:xid out of range\n");
+		spin_unlock_bh(&tgt->tgt_lock);
+		return;
+	}
+	task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+	index = xid % BNX2FC_TASKS_PER_PAGE;
+	task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
+	task = &(task_page[index]);
+
+	num_rq = ((task->rx_wr_tx_rd.rx_flags &
+		   FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE) >>
+		   FCOE_TASK_CTX_ENTRY_RXWR_TXRD_NUM_RQ_WQE_SHIFT);
+
+	io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
+
+	if (io_req == NULL) {
+		printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
+		spin_unlock_bh(&tgt->tgt_lock);
+		return;
+	}
+
+	/* Timestamp IO completion time */
+	cmd_type = io_req->cmd_type;
+
+	/* optimized completion path */
+	if (cmd_type == BNX2FC_SCSI_CMD) {
+		rx_state = ((task->rx_wr_tx_rd.rx_flags &
+			    FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE) >>
+			    FCOE_TASK_CTX_ENTRY_RXWR_TXRD_RX_STATE_SHIFT);
+
+		if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
+			bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq);
+			spin_unlock_bh(&tgt->tgt_lock);
+			return;
+		}
+	}
+
+	/* Process other IO completion types */
+	switch (cmd_type) {
+	case BNX2FC_SCSI_CMD:
+		if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
+			bnx2fc_process_abts_compl(io_req, task, num_rq);
+		else if (rx_state ==
+			 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
+			bnx2fc_process_cleanup_compl(io_req, task, num_rq);
+		else
+			printk(KERN_ERR PFX "Invalid rx state - %d\n",
+				rx_state);
+		break;
+
+	case BNX2FC_TASK_MGMT_CMD:
+		BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
+		bnx2fc_process_tm_compl(io_req, task, num_rq);
+		break;
+
+	case BNX2FC_ABTS:
+		/*
+		 * ABTS request received by firmware. ABTS response
+		 * will be delivered to the task belonging to the IO
+		 * that was aborted
+		 */
+		BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		break;
+
+	case BNX2FC_ELS:
+		BNX2FC_IO_DBG(io_req, "cq_compl - call process_els_compl\n");
+		bnx2fc_process_els_compl(io_req, task, num_rq);
+		break;
+
+	case BNX2FC_CLEANUP:
+		BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		break;
+
+	default:
+		printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
+		break;
+	}
+	spin_unlock_bh(&tgt->tgt_lock);
+}
+
+struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe)
+{
+	struct bnx2fc_work *work;
+	work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
+	if (!work)
+		return NULL;
+
+	INIT_LIST_HEAD(&work->list);
+	work->tgt = tgt;
+	work->wqe = wqe;
+	return work;
+}
+
+int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
+{
+	struct fcoe_cqe *cq;
+	u32 cq_cons;
+	struct fcoe_cqe *cqe;
+	u16 wqe;
+	bool more_cqes_found = false;
+
+	/*
+	 * cq_lock is a low contention lock used to protect
+	 * the CQ data structure from being freed up during
+	 * the upload operation
+	 */
+	spin_lock_bh(&tgt->cq_lock);
+
+	if (!tgt->cq) {
+		printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
+		spin_unlock_bh(&tgt->cq_lock);
+		return 0;
+	}
+	cq = tgt->cq;
+	cq_cons = tgt->cq_cons_idx;
+	cqe = &cq[cq_cons];
+
+	do {
+		more_cqes_found ^= true;
+
+		while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
+		       (tgt->cq_curr_toggle_bit <<
+		       FCOE_CQE_TOGGLE_BIT_SHIFT)) {
+
+			/* new entry on the cq */
+			if (wqe & FCOE_CQE_CQE_TYPE) {
+				/* Unsolicited event notification */
+				bnx2fc_process_unsol_compl(tgt, wqe);
+			} else {
+				struct bnx2fc_work *work = NULL;
+				struct bnx2fc_percpu_s *fps = NULL;
+				unsigned int cpu = wqe % num_possible_cpus();
+
+				fps = &per_cpu(bnx2fc_percpu, cpu);
+				spin_lock_bh(&fps->fp_work_lock);
+				if (unlikely(!fps->iothread))
+					goto unlock;
+
+				work = bnx2fc_alloc_work(tgt, wqe);
+				if (work)
+					list_add_tail(&work->list,
+							&fps->work_list);
+unlock:
+				spin_unlock_bh(&fps->fp_work_lock);
+
+				/* Pending work request completion */
+				if (fps->iothread && work)
+					wake_up_process(fps->iothread);
+				else
+					bnx2fc_process_cq_compl(tgt, wqe);
+			}
+			cqe++;
+			tgt->cq_cons_idx++;
+
+			if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
+				tgt->cq_cons_idx = 0;
+				cqe = cq;
+				tgt->cq_curr_toggle_bit =
+					1 - tgt->cq_curr_toggle_bit;
+			}
+		}
+		/* Re-arm CQ */
+		if (more_cqes_found) {
+			tgt->conn_db->cq_arm.lo = -1;
+			wmb();
+		}
+	} while (more_cqes_found);
+
+	/*
+	 * Commit tgt->cq_cons_idx change to the memory
+	 * spin_lock implies full memory barrier, no need to smp_wmb
+	 */
+
+	spin_unlock_bh(&tgt->cq_lock);
+	return 0;
+}
+
+/**
+ * bnx2fc_fastpath_notification - process global event queue (KCQ)
+ *
+ * @hba:		adapter structure pointer
+ * @new_cqe_kcqe:	pointer to newly DMA'd KCQ entry
+ *
+ * Fast path event notification handler
+ */
+static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *new_cqe_kcqe)
+{
+	u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
+	struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
+
+	if (!tgt) {
+		printk(KERN_ALERT PFX "conn_id 0x%x not valid\n", conn_id);
+		return;
+	}
+
+	bnx2fc_process_new_cqes(tgt);
+}
+
+/**
+ * bnx2fc_process_ofld_cmpl - process FCoE session offload completion
+ *
+ * @hba:	adapter structure pointer
+ * @ofld_kcqe:	connection offload kcqe pointer
+ *
+ * handle session offload completion, enable the session if offload is
+ * successful.
+ */
+static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *ofld_kcqe)
+{
+	struct bnx2fc_rport		*tgt;
+	struct fcoe_port		*port;
+	u32				conn_id;
+	u32				context_id;
+	int				rc;
+
+	conn_id = ofld_kcqe->fcoe_conn_id;
+	context_id = ofld_kcqe->fcoe_conn_context_id;
+	tgt = hba->tgt_ofld_list[conn_id];
+	if (!tgt) {
+		printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
+		return;
+	}
+	BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
+		ofld_kcqe->fcoe_conn_context_id);
+	port = tgt->port;
+	if (hba != tgt->port->priv) {
+		printk(KERN_ALERT PFX "ERROR:ofld_cmpl: HBA mis-match\n");
+		goto ofld_cmpl_err;
+	}
+	/*
+	 * cnic has allocated a context_id for this session; use this
+	 * while enabling the session.
+	 */
+	tgt->context_id = context_id;
+	if (ofld_kcqe->completion_status) {
+		if (ofld_kcqe->completion_status ==
+				FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
+			printk(KERN_ERR PFX "unable to allocate FCoE context "
+				"resources\n");
+			set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
+		}
+		goto ofld_cmpl_err;
+	} else {
+
+		/* now enable the session */
+		rc = bnx2fc_send_session_enable_req(port, tgt);
+		if (rc) {
+			printk(KERN_ALERT PFX "enable session failed\n");
+			goto ofld_cmpl_err;
+		}
+	}
+	return;
+ofld_cmpl_err:
+	set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+	wake_up_interruptible(&tgt->ofld_wait);
+}
+
+/**
+ * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
+ *
+ * @hba:	adapter structure pointer
+ * @ofld_kcqe:	connection offload kcqe pointer
+ *
+ * handle session enable completion, mark the rport as ready
+ */
+
+static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
+						struct fcoe_kcqe *ofld_kcqe)
+{
+	struct bnx2fc_rport		*tgt;
+	u32				conn_id;
+	u32				context_id;
+
+	context_id = ofld_kcqe->fcoe_conn_context_id;
+	conn_id = ofld_kcqe->fcoe_conn_id;
+	tgt = hba->tgt_ofld_list[conn_id];
+	if (!tgt) {
+		printk(KERN_ALERT PFX "ERROR:enbl_cmpl: No pending ofld req\n");
+		return;
+	}
+
+	BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
+		ofld_kcqe->fcoe_conn_context_id);
+
+	/*
+	 * context_id should be the same for this target during offload
+	 * and enable
+	 */
+	if (tgt->context_id != context_id) {
+		printk(KERN_ALERT PFX "context id mis-match\n");
+		return;
+	}
+	if (hba != tgt->port->priv) {
+		printk(KERN_ALERT PFX "bnx2fc-enbl_cmpl: HBA mis-match\n");
+		goto enbl_cmpl_err;
+	}
+	if (ofld_kcqe->completion_status) {
+		goto enbl_cmpl_err;
+	} else {
+		/* enable successful - rport ready for issuing IOs */
+		set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+		set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+		wake_up_interruptible(&tgt->ofld_wait);
+	}
+	return;
+
+enbl_cmpl_err:
+	set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+	wake_up_interruptible(&tgt->ofld_wait);
+}
+
+static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *disable_kcqe)
+{
+
+	struct bnx2fc_rport		*tgt;
+	u32				conn_id;
+
+	conn_id = disable_kcqe->fcoe_conn_id;
+	tgt = hba->tgt_ofld_list[conn_id];
+	if (!tgt) {
+		printk(KERN_ALERT PFX "ERROR: disable_cmpl: No disable req\n");
+		return;
+	}
+
+	BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
+
+	if (disable_kcqe->completion_status) {
+		printk(KERN_ALERT PFX "ERROR: Disable failed with cmpl status %d\n",
+			disable_kcqe->completion_status);
+		return;
+	} else {
+		/* disable successful */
+		BNX2FC_TGT_DBG(tgt, "disable successful\n");
+		clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+		set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
+		set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+		wake_up_interruptible(&tgt->upld_wait);
+	}
+}
+
+static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
+					struct fcoe_kcqe *destroy_kcqe)
+{
+	struct bnx2fc_rport		*tgt;
+	u32				conn_id;
+
+	conn_id = destroy_kcqe->fcoe_conn_id;
+	tgt = hba->tgt_ofld_list[conn_id];
+	if (!tgt) {
+		printk(KERN_ALERT PFX "destroy_cmpl: No destroy req\n");
+		return;
+	}
+
+	BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
+
+	if (destroy_kcqe->completion_status) {
+		printk(KERN_ALERT PFX "Destroy conn failed, cmpl status %d\n",
+			destroy_kcqe->completion_status);
+		return;
+	} else {
+		/* destroy successful */
+		BNX2FC_TGT_DBG(tgt, "upload successful\n");
+		clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
+		set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
+		set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+		wake_up_interruptible(&tgt->upld_wait);
+	}
+}
+
+static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
+{
+	switch (err_code) {
+	case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
+		printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
+		break;
+
+	case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
+		printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
+		break;
+
+	case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
+		printk(KERN_ERR PFX "init_failure due to NIC error\n");
+		break;
+
+	default:
+		printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
+	}
+}
+
+/**
+ * bnx2fc_indicae_kcqe - process KCQE
+ *
+ * @hba:	adapter structure pointer
+ * @kcqe:	kcqe pointer
+ * @num_cqe:	Number of completion queue elements
+ *
+ * Generic KCQ event handler
+ */
+void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
+					u32 num_cqe)
+{
+	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+	int i = 0;
+	struct fcoe_kcqe *kcqe = NULL;
+
+	while (i < num_cqe) {
+		kcqe = (struct fcoe_kcqe *) kcq[i++];
+
+		switch (kcqe->op_code) {
+		case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
+			bnx2fc_fastpath_notification(hba, kcqe);
+			break;
+
+		case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
+			bnx2fc_process_ofld_cmpl(hba, kcqe);
+			break;
+
+		case FCOE_KCQE_OPCODE_ENABLE_CONN:
+			bnx2fc_process_enable_conn_cmpl(hba, kcqe);
+			break;
+
+		case FCOE_KCQE_OPCODE_INIT_FUNC:
+			if (kcqe->completion_status !=
+					FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
+				bnx2fc_init_failure(hba,
+						kcqe->completion_status);
+			} else {
+				set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+				bnx2fc_get_link_state(hba);
+				printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
+					(u8)hba->pcidev->bus->number);
+			}
+			break;
+
+		case FCOE_KCQE_OPCODE_DESTROY_FUNC:
+			if (kcqe->completion_status !=
+					FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
+
+				printk(KERN_ERR PFX "DESTROY failed\n");
+			} else {
+				printk(KERN_ERR PFX "DESTROY success\n");
+			}
+			hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
+			wake_up_interruptible(&hba->destroy_wait);
+			break;
+
+		case FCOE_KCQE_OPCODE_DISABLE_CONN:
+			bnx2fc_process_conn_disable_cmpl(hba, kcqe);
+			break;
+
+		case FCOE_KCQE_OPCODE_DESTROY_CONN:
+			bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
+			break;
+
+		case FCOE_KCQE_OPCODE_STAT_FUNC:
+			if (kcqe->completion_status !=
+			    FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
+				printk(KERN_ERR PFX "STAT failed\n");
+			complete(&hba->stat_req_done);
+			break;
+
+		case FCOE_KCQE_OPCODE_FCOE_ERROR:
+			/* fall thru */
+		default:
+			printk(KERN_ALERT PFX "unknown opcode 0x%x\n",
+								kcqe->op_code);
+		}
+	}
+}
+
+void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
+{
+	struct fcoe_sqe *sqe;
+
+	sqe = &tgt->sq[tgt->sq_prod_idx];
+
+	/* Fill SQ WQE */
+	sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
+	sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
+
+	/* Advance SQ Prod Idx */
+	if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
+		tgt->sq_prod_idx = 0;
+		tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
+	}
+}
+
+void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
+{
+	struct b577xx_doorbell_set_prod ev_doorbell;
+	u32 msg;
+
+	wmb();
+
+	memset(&ev_doorbell, 0, sizeof(struct b577xx_doorbell_set_prod));
+	ev_doorbell.header.header = B577XX_DOORBELL_HDR_DB_TYPE;
+
+	ev_doorbell.prod = tgt->sq_prod_idx |
+				(tgt->sq_curr_toggle_bit << 15);
+	ev_doorbell.header.header |= B577XX_FCOE_CONNECTION_TYPE <<
+					B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT;
+	msg = *((u32 *)&ev_doorbell);
+	writel(cpu_to_le32(msg), tgt->ctx_base);
+
+	mmiowb();
+
+}
+
+int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
+{
+	u32 context_id = tgt->context_id;
+	struct fcoe_port *port = tgt->port;
+	u32 reg_off;
+	resource_size_t reg_base;
+	struct bnx2fc_hba *hba = port->priv;
+
+	reg_base = pci_resource_start(hba->pcidev,
+					BNX2X_DOORBELL_PCI_BAR);
+	reg_off = BNX2FC_5771X_DB_PAGE_SIZE *
+			(context_id & 0x1FFFF) + DPM_TRIGER_TYPE;
+	tgt->ctx_base = ioremap_nocache(reg_base + reg_off, 4);
+	if (!tgt->ctx_base)
+		return -ENOMEM;
+	return 0;
+}
+
+char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
+{
+	char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
+
+	if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
+		return NULL;
+
+	tgt->rq_cons_idx += num_items;
+
+	if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
+		tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
+
+	return buf;
+}
+
+void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
+{
+	/* return the rq buffer */
+	u32 next_prod_idx = tgt->rq_prod_idx + num_items;
+	if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
+		/* Wrap around RQ */
+		next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
+	}
+	tgt->rq_prod_idx = next_prod_idx;
+	tgt->conn_db->rq_prod = tgt->rq_prod_idx;
+}
+
+void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
+			      struct fcoe_task_ctx_entry *task,
+			      u16 orig_xid)
+{
+	u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	u32 context_id = tgt->context_id;
+
+	memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+	/* Tx Write Rx Read */
+	task->tx_wr_rx_rd.tx_flags = FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT;
+	task->tx_wr_rx_rd.init_flags = task_type <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT;
+	task->tx_wr_rx_rd.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT;
+	/* Common */
+	task->cmn.common_flags = context_id <<
+				FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT;
+	task->cmn.general.cleanup_info.task_id = orig_xid;
+
+
+}
+
+void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
+				struct fcoe_task_ctx_entry *task)
+{
+	struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	struct fc_frame_header *fc_hdr;
+	u8 task_type = 0;
+	u64 *hdr;
+	u64 temp_hdr[3];
+	u32 context_id;
+
+
+	/* Obtain task_type */
+	if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
+	    (io_req->cmd_type == BNX2FC_ELS)) {
+		task_type = FCOE_TASK_TYPE_MIDPATH;
+	} else if (io_req->cmd_type == BNX2FC_ABTS) {
+		task_type = FCOE_TASK_TYPE_ABTS;
+	}
+
+	memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+	/* Setup the task from io_req for easy reference */
+	io_req->task = task;
+
+	BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
+		io_req->cmd_type, task_type);
+
+	/* Tx only */
+	if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
+	    (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
+		task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+				(u32)mp_req->mp_req_bd_dma;
+		task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+				(u32)((u64)mp_req->mp_req_bd_dma >> 32);
+		task->tx_wr_only.sgl_ctx.mul_sges.sgl_size = 1;
+		BNX2FC_IO_DBG(io_req, "init_mp_task - bd_dma = 0x%llx\n",
+			      (unsigned long long)mp_req->mp_req_bd_dma);
+	}
+
+	/* Tx Write Rx Read */
+	task->tx_wr_rx_rd.tx_flags = FCOE_TASK_TX_STATE_INIT <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT;
+	task->tx_wr_rx_rd.init_flags = task_type <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT;
+	task->tx_wr_rx_rd.init_flags |= FCOE_TASK_DEV_TYPE_DISK <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT;
+	task->tx_wr_rx_rd.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT;
+
+	/* Common */
+	task->cmn.data_2_trns = io_req->data_xfer_len;
+	context_id = tgt->context_id;
+	task->cmn.common_flags = context_id <<
+				FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT;
+	task->cmn.common_flags |= 1 <<
+				FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID_SHIFT;
+	task->cmn.common_flags |= 1 <<
+			FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME_SHIFT;
+
+	/* Rx Write Tx Read */
+	fc_hdr = &(mp_req->req_fc_hdr);
+	if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+		fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
+		fc_hdr->fh_rx_id = htons(0xffff);
+		task->rx_wr_tx_rd.rx_id = 0xffff;
+	} else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
+		fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
+	}
+
+	/* Fill FC Header into middle path buffer */
+	hdr = (u64 *) &task->cmn.general.cmd_info.mp_fc_frame.fc_hdr;
+	memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
+	hdr[0] = cpu_to_be64(temp_hdr[0]);
+	hdr[1] = cpu_to_be64(temp_hdr[1]);
+	hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+	/* Rx Only */
+	if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+
+		task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+				(u32)mp_req->mp_resp_bd_dma;
+		task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+				(u32)((u64)mp_req->mp_resp_bd_dma >> 32);
+		task->rx_wr_only.sgl_ctx.mul_sges.sgl_size = 1;
+	}
+}
+
+void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
+			     struct fcoe_task_ctx_entry *task)
+{
+	u8 task_type;
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+	struct io_bdt *bd_tbl = io_req->bd_tbl;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	u64 *fcp_cmnd;
+	u64 tmp_fcp_cmnd[4];
+	u32 context_id;
+	int cnt, i;
+	int bd_count;
+
+	memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
+
+	/* Setup the task from io_req for easy reference */
+	io_req->task = task;
+
+	if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+		task_type = FCOE_TASK_TYPE_WRITE;
+	else
+		task_type = FCOE_TASK_TYPE_READ;
+
+	/* Tx only */
+	if (task_type == FCOE_TASK_TYPE_WRITE) {
+		task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+				(u32)bd_tbl->bd_tbl_dma;
+		task->tx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+				(u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+		task->tx_wr_only.sgl_ctx.mul_sges.sgl_size =
+				bd_tbl->bd_valid;
+	}
+
+	/*Tx Write Rx Read */
+	/* Init state to NORMAL */
+	task->tx_wr_rx_rd.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TX_STATE_SHIFT;
+	task->tx_wr_rx_rd.init_flags = task_type <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_TASK_TYPE_SHIFT;
+	task->tx_wr_rx_rd.init_flags |= FCOE_TASK_DEV_TYPE_DISK <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_DEV_TYPE_SHIFT;
+	task->tx_wr_rx_rd.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_CLASS_TYPE_SHIFT;
+
+	/* Common */
+	task->cmn.data_2_trns = io_req->data_xfer_len;
+	context_id = tgt->context_id;
+	task->cmn.common_flags = context_id <<
+				FCOE_TASK_CTX_ENTRY_TX_RX_CMN_CID_SHIFT;
+	task->cmn.common_flags |= 1 <<
+				FCOE_TASK_CTX_ENTRY_TX_RX_CMN_VALID_SHIFT;
+	task->cmn.common_flags |= 1 <<
+			FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME_SHIFT;
+
+	/* Set initiative ownership */
+	task->cmn.common_flags |= FCOE_TASK_CTX_ENTRY_TX_RX_CMN_SEQ_INIT;
+
+	/* Set initial seq counter */
+	task->cmn.tx_low_seq_cnt = 1;
+
+	/* Set state to "waiting for the first packet" */
+	task->cmn.common_flags |= FCOE_TASK_CTX_ENTRY_TX_RX_CMN_EXP_FIRST_FRAME;
+
+	/* Fill FCP_CMND IU */
+	fcp_cmnd = (u64 *)
+		    task->cmn.general.cmd_info.fcp_cmd_payload.opaque;
+	bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
+
+	/* swap fcp_cmnd */
+	cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
+
+	for (i = 0; i < cnt; i++) {
+		*fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
+		fcp_cmnd++;
+	}
+
+	/* Rx Write Tx Read */
+	task->rx_wr_tx_rd.rx_id = 0xffff;
+
+	/* Rx Only */
+	if (task_type == FCOE_TASK_TYPE_READ) {
+
+		bd_count = bd_tbl->bd_valid;
+		if (bd_count == 1) {
+
+			struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+			task->rx_wr_only.sgl_ctx.single_sge.cur_buf_addr.lo =
+					fcoe_bd_tbl->buf_addr_lo;
+			task->rx_wr_only.sgl_ctx.single_sge.cur_buf_addr.hi =
+					fcoe_bd_tbl->buf_addr_hi;
+			task->rx_wr_only.sgl_ctx.single_sge.cur_buf_rem =
+					fcoe_bd_tbl->buf_len;
+			task->tx_wr_rx_rd.init_flags |= 1 <<
+				FCOE_TASK_CTX_ENTRY_TXWR_RXRD_SINGLE_SGE_SHIFT;
+		} else {
+
+			task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.lo =
+					(u32)bd_tbl->bd_tbl_dma;
+			task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_addr.hi =
+					(u32)((u64)bd_tbl->bd_tbl_dma >> 32);
+			task->rx_wr_only.sgl_ctx.mul_sges.sgl_size =
+					bd_tbl->bd_valid;
+		}
+	}
+}
+
+/**
+ * bnx2fc_setup_task_ctx - allocate and map task context
+ *
+ * @hba:	pointer to adapter structure
+ *
+ * allocate memory for task context, and associated BD table to be used
+ * by firmware
+ *
+ */
+int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
+{
+	int rc = 0;
+	struct regpair *task_ctx_bdt;
+	dma_addr_t addr;
+	int i;
+
+	/*
+	 * Allocate task context bd table. A page size of bd table
+	 * can map 256 buffers. Each buffer contains 32 task context
+	 * entries. Hence the limit with one page is 8192 task context
+	 * entries.
+	 */
+	hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
+						  PAGE_SIZE,
+						  &hba->task_ctx_bd_dma,
+						  GFP_KERNEL);
+	if (!hba->task_ctx_bd_tbl) {
+		printk(KERN_ERR PFX "unable to allocate task context BDT\n");
+		rc = -1;
+		goto out;
+	}
+	memset(hba->task_ctx_bd_tbl, 0, PAGE_SIZE);
+
+	/*
+	 * Allocate task_ctx which is an array of pointers pointing to
+	 * a page containing 32 task contexts
+	 */
+	hba->task_ctx = kzalloc((BNX2FC_TASK_CTX_ARR_SZ * sizeof(void *)),
+				 GFP_KERNEL);
+	if (!hba->task_ctx) {
+		printk(KERN_ERR PFX "unable to allocate task context array\n");
+		rc = -1;
+		goto out1;
+	}
+
+	/*
+	 * Allocate task_ctx_dma which is an array of dma addresses
+	 */
+	hba->task_ctx_dma = kmalloc((BNX2FC_TASK_CTX_ARR_SZ *
+					sizeof(dma_addr_t)), GFP_KERNEL);
+	if (!hba->task_ctx_dma) {
+		printk(KERN_ERR PFX "unable to alloc context mapping array\n");
+		rc = -1;
+		goto out2;
+	}
+
+	task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
+	for (i = 0; i < BNX2FC_TASK_CTX_ARR_SZ; i++) {
+
+		hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
+						      PAGE_SIZE,
+						      &hba->task_ctx_dma[i],
+						      GFP_KERNEL);
+		if (!hba->task_ctx[i]) {
+			printk(KERN_ERR PFX "unable to alloc task context\n");
+			rc = -1;
+			goto out3;
+		}
+		memset(hba->task_ctx[i], 0, PAGE_SIZE);
+		addr = (u64)hba->task_ctx_dma[i];
+		task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
+		task_ctx_bdt->lo = cpu_to_le32((u32)addr);
+		task_ctx_bdt++;
+	}
+	return 0;
+
+out3:
+	for (i = 0; i < BNX2FC_TASK_CTX_ARR_SZ; i++) {
+		if (hba->task_ctx[i]) {
+
+			dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				hba->task_ctx[i], hba->task_ctx_dma[i]);
+			hba->task_ctx[i] = NULL;
+		}
+	}
+
+	kfree(hba->task_ctx_dma);
+	hba->task_ctx_dma = NULL;
+out2:
+	kfree(hba->task_ctx);
+	hba->task_ctx = NULL;
+out1:
+	dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+			hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
+	hba->task_ctx_bd_tbl = NULL;
+out:
+	return rc;
+}
+
+void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
+{
+	int i;
+
+	if (hba->task_ctx_bd_tbl) {
+		dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				    hba->task_ctx_bd_tbl,
+				    hba->task_ctx_bd_dma);
+		hba->task_ctx_bd_tbl = NULL;
+	}
+
+	if (hba->task_ctx) {
+		for (i = 0; i < BNX2FC_TASK_CTX_ARR_SZ; i++) {
+			if (hba->task_ctx[i]) {
+				dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+						    hba->task_ctx[i],
+						    hba->task_ctx_dma[i]);
+				hba->task_ctx[i] = NULL;
+			}
+		}
+		kfree(hba->task_ctx);
+		hba->task_ctx = NULL;
+	}
+
+	kfree(hba->task_ctx_dma);
+	hba->task_ctx_dma = NULL;
+}
+
+static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
+{
+	int i;
+	int segment_count;
+	int hash_table_size;
+	u32 *pbl;
+
+	segment_count = hba->hash_tbl_segment_count;
+	hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
+		sizeof(struct fcoe_hash_table_entry);
+
+	pbl = hba->hash_tbl_pbl;
+	for (i = 0; i < segment_count; ++i) {
+		dma_addr_t dma_address;
+
+		dma_address = le32_to_cpu(*pbl);
+		++pbl;
+		dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
+		++pbl;
+		dma_free_coherent(&hba->pcidev->dev,
+				  BNX2FC_HASH_TBL_CHUNK_SIZE,
+				  hba->hash_tbl_segments[i],
+				  dma_address);
+
+	}
+
+	if (hba->hash_tbl_pbl) {
+		dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				    hba->hash_tbl_pbl,
+				    hba->hash_tbl_pbl_dma);
+		hba->hash_tbl_pbl = NULL;
+	}
+}
+
+static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
+{
+	int i;
+	int hash_table_size;
+	int segment_count;
+	int segment_array_size;
+	int dma_segment_array_size;
+	dma_addr_t *dma_segment_array;
+	u32 *pbl;
+
+	hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
+		sizeof(struct fcoe_hash_table_entry);
+
+	segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
+	segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
+	hba->hash_tbl_segment_count = segment_count;
+
+	segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
+	hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
+	if (!hba->hash_tbl_segments) {
+		printk(KERN_ERR PFX "hash table pointers alloc failed\n");
+		return -ENOMEM;
+	}
+	dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
+	dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
+	if (!dma_segment_array) {
+		printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < segment_count; ++i) {
+		hba->hash_tbl_segments[i] =
+			dma_alloc_coherent(&hba->pcidev->dev,
+					   BNX2FC_HASH_TBL_CHUNK_SIZE,
+					   &dma_segment_array[i],
+					   GFP_KERNEL);
+		if (!hba->hash_tbl_segments[i]) {
+			printk(KERN_ERR PFX "hash segment alloc failed\n");
+			while (--i >= 0) {
+				dma_free_coherent(&hba->pcidev->dev,
+						    BNX2FC_HASH_TBL_CHUNK_SIZE,
+						    hba->hash_tbl_segments[i],
+						    dma_segment_array[i]);
+				hba->hash_tbl_segments[i] = NULL;
+			}
+			kfree(dma_segment_array);
+			return -ENOMEM;
+		}
+		memset(hba->hash_tbl_segments[i], 0,
+		       BNX2FC_HASH_TBL_CHUNK_SIZE);
+	}
+
+	hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev,
+					       PAGE_SIZE,
+					       &hba->hash_tbl_pbl_dma,
+					       GFP_KERNEL);
+	if (!hba->hash_tbl_pbl) {
+		printk(KERN_ERR PFX "hash table pbl alloc failed\n");
+		kfree(dma_segment_array);
+		return -ENOMEM;
+	}
+	memset(hba->hash_tbl_pbl, 0, PAGE_SIZE);
+
+	pbl = hba->hash_tbl_pbl;
+	for (i = 0; i < segment_count; ++i) {
+		u64 paddr = dma_segment_array[i];
+		*pbl = cpu_to_le32((u32) paddr);
+		++pbl;
+		*pbl = cpu_to_le32((u32) (paddr >> 32));
+		++pbl;
+	}
+	pbl = hba->hash_tbl_pbl;
+	i = 0;
+	while (*pbl && *(pbl + 1)) {
+		u32 lo;
+		u32 hi;
+		lo = *pbl;
+		++pbl;
+		hi = *pbl;
+		++pbl;
+		++i;
+	}
+	kfree(dma_segment_array);
+	return 0;
+}
+
+/**
+ * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
+ *
+ * @hba:	Pointer to adapter structure
+ *
+ */
+int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
+{
+	u64 addr;
+	u32 mem_size;
+	int i;
+
+	if (bnx2fc_allocate_hash_table(hba))
+		return -ENOMEM;
+
+	mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
+	hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
+						  &hba->t2_hash_tbl_ptr_dma,
+						  GFP_KERNEL);
+	if (!hba->t2_hash_tbl_ptr) {
+		printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
+		bnx2fc_free_fw_resc(hba);
+		return -ENOMEM;
+	}
+	memset(hba->t2_hash_tbl_ptr, 0x00, mem_size);
+
+	mem_size = BNX2FC_NUM_MAX_SESS *
+				sizeof(struct fcoe_t2_hash_table_entry);
+	hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
+					      &hba->t2_hash_tbl_dma,
+					      GFP_KERNEL);
+	if (!hba->t2_hash_tbl) {
+		printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
+		bnx2fc_free_fw_resc(hba);
+		return -ENOMEM;
+	}
+	memset(hba->t2_hash_tbl, 0x00, mem_size);
+	for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+		addr = (unsigned long) hba->t2_hash_tbl_dma +
+			 ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
+		hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
+		hba->t2_hash_tbl[i].next.hi = addr >> 32;
+	}
+
+	hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
+					       PAGE_SIZE, &hba->dummy_buf_dma,
+					       GFP_KERNEL);
+	if (!hba->dummy_buffer) {
+		printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
+		bnx2fc_free_fw_resc(hba);
+		return -ENOMEM;
+	}
+
+	hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev,
+					       PAGE_SIZE,
+					       &hba->stats_buf_dma,
+					       GFP_KERNEL);
+	if (!hba->stats_buffer) {
+		printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
+		bnx2fc_free_fw_resc(hba);
+		return -ENOMEM;
+	}
+	memset(hba->stats_buffer, 0x00, PAGE_SIZE);
+
+	return 0;
+}
+
+void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
+{
+	u32 mem_size;
+
+	if (hba->stats_buffer) {
+		dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				  hba->stats_buffer, hba->stats_buf_dma);
+		hba->stats_buffer = NULL;
+	}
+
+	if (hba->dummy_buffer) {
+		dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				  hba->dummy_buffer, hba->dummy_buf_dma);
+		hba->dummy_buffer = NULL;
+	}
+
+	if (hba->t2_hash_tbl_ptr) {
+		mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
+		dma_free_coherent(&hba->pcidev->dev, mem_size,
+				    hba->t2_hash_tbl_ptr,
+				    hba->t2_hash_tbl_ptr_dma);
+		hba->t2_hash_tbl_ptr = NULL;
+	}
+
+	if (hba->t2_hash_tbl) {
+		mem_size = BNX2FC_NUM_MAX_SESS *
+			    sizeof(struct fcoe_t2_hash_table_entry);
+		dma_free_coherent(&hba->pcidev->dev, mem_size,
+				    hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
+		hba->t2_hash_tbl = NULL;
+	}
+	bnx2fc_free_hash_table(hba);
+}

drivers/scsi/bnx2fc/bnx2fc_io.c

@@ -0,0 +1,1833 @@
+/* bnx2fc_io.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * IO manager and SCSI IO processing.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
+			   int bd_index);
+static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req);
+static void bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req);
+static int bnx2fc_post_io_req(struct bnx2fc_rport *tgt,
+			       struct bnx2fc_cmd *io_req);
+static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req);
+static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req);
+static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
+				 struct fcoe_fcp_rsp_payload *fcp_rsp,
+				 u8 num_rq);
+
+void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
+			  unsigned int timer_msec)
+{
+	struct bnx2fc_hba *hba = io_req->port->priv;
+
+	if (queue_delayed_work(hba->timer_work_queue, &io_req->timeout_work,
+				  msecs_to_jiffies(timer_msec)))
+		kref_get(&io_req->refcount);
+}
+
+static void bnx2fc_cmd_timeout(struct work_struct *work)
+{
+	struct bnx2fc_cmd *io_req = container_of(work, struct bnx2fc_cmd,
+						 timeout_work.work);
+	struct fc_lport *lport;
+	struct fc_rport_priv *rdata;
+	u8 cmd_type = io_req->cmd_type;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	int logo_issued;
+	int rc;
+
+	BNX2FC_IO_DBG(io_req, "cmd_timeout, cmd_type = %d,"
+		      "req_flags = %lx\n", cmd_type, io_req->req_flags);
+
+	spin_lock_bh(&tgt->tgt_lock);
+	if (test_and_clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags)) {
+		clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
+		/*
+		 * ideally we should hold the io_req until RRQ complets,
+		 * and release io_req from timeout hold.
+		 */
+		spin_unlock_bh(&tgt->tgt_lock);
+		bnx2fc_send_rrq(io_req);
+		return;
+	}
+	if (test_and_clear_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags)) {
+		BNX2FC_IO_DBG(io_req, "IO ready for reuse now\n");
+		goto done;
+	}
+
+	switch (cmd_type) {
+	case BNX2FC_SCSI_CMD:
+		if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+							&io_req->req_flags)) {
+			/* Handle eh_abort timeout */
+			BNX2FC_IO_DBG(io_req, "eh_abort timed out\n");
+			complete(&io_req->tm_done);
+		} else if (test_bit(BNX2FC_FLAG_ISSUE_ABTS,
+				    &io_req->req_flags)) {
+			/* Handle internally generated ABTS timeout */
+			BNX2FC_IO_DBG(io_req, "ABTS timed out refcnt = %d\n",
+					io_req->refcount.refcount.counter);
+			if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+					       &io_req->req_flags))) {
+
+				lport = io_req->port->lport;
+				rdata = io_req->tgt->rdata;
+				logo_issued = test_and_set_bit(
+						BNX2FC_FLAG_EXPL_LOGO,
+						&tgt->flags);
+				kref_put(&io_req->refcount, bnx2fc_cmd_release);
+				spin_unlock_bh(&tgt->tgt_lock);
+
+				/* Explicitly logo the target */
+				if (!logo_issued) {
+					BNX2FC_IO_DBG(io_req, "Explicit "
+						   "logo - tgt flags = 0x%lx\n",
+						   tgt->flags);
+
+					mutex_lock(&lport->disc.disc_mutex);
+					lport->tt.rport_logoff(rdata);
+					mutex_unlock(&lport->disc.disc_mutex);
+				}
+				return;
+			}
+		} else {
+			/* Hanlde IO timeout */
+			BNX2FC_IO_DBG(io_req, "IO timed out. issue ABTS\n");
+			if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL,
+					     &io_req->req_flags)) {
+				BNX2FC_IO_DBG(io_req, "IO completed before "
+							   " timer expiry\n");
+				goto done;
+			}
+
+			if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+					      &io_req->req_flags)) {
+				rc = bnx2fc_initiate_abts(io_req);
+				if (rc == SUCCESS)
+					goto done;
+				/*
+				 * Explicitly logo the target if
+				 * abts initiation fails
+				 */
+				lport = io_req->port->lport;
+				rdata = io_req->tgt->rdata;
+				logo_issued = test_and_set_bit(
+						BNX2FC_FLAG_EXPL_LOGO,
+						&tgt->flags);
+				kref_put(&io_req->refcount, bnx2fc_cmd_release);
+				spin_unlock_bh(&tgt->tgt_lock);
+
+				if (!logo_issued) {
+					BNX2FC_IO_DBG(io_req, "Explicit "
+						   "logo - tgt flags = 0x%lx\n",
+						   tgt->flags);
+
+
+					mutex_lock(&lport->disc.disc_mutex);
+					lport->tt.rport_logoff(rdata);
+					mutex_unlock(&lport->disc.disc_mutex);
+				}
+				return;
+			} else {
+				BNX2FC_IO_DBG(io_req, "IO already in "
+						      "ABTS processing\n");
+			}
+		}
+		break;
+	case BNX2FC_ELS:
+
+		if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+			BNX2FC_IO_DBG(io_req, "ABTS for ELS timed out\n");
+
+			if (!test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+					      &io_req->req_flags)) {
+				lport = io_req->port->lport;
+				rdata = io_req->tgt->rdata;
+				logo_issued = test_and_set_bit(
+						BNX2FC_FLAG_EXPL_LOGO,
+						&tgt->flags);
+				kref_put(&io_req->refcount, bnx2fc_cmd_release);
+				spin_unlock_bh(&tgt->tgt_lock);
+
+				/* Explicitly logo the target */
+				if (!logo_issued) {
+					BNX2FC_IO_DBG(io_req, "Explicitly logo"
+						   "(els)\n");
+					mutex_lock(&lport->disc.disc_mutex);
+					lport->tt.rport_logoff(rdata);
+					mutex_unlock(&lport->disc.disc_mutex);
+				}
+				return;
+			}
+		} else {
+			/*
+			 * Handle ELS timeout.
+			 * tgt_lock is used to sync compl path and timeout
+			 * path. If els compl path is processing this IO, we
+			 * have nothing to do here, just release the timer hold
+			 */
+			BNX2FC_IO_DBG(io_req, "ELS timed out\n");
+			if (test_and_set_bit(BNX2FC_FLAG_ELS_DONE,
+					       &io_req->req_flags))
+				goto done;
+
+			/* Indicate the cb_func that this ELS is timed out */
+			set_bit(BNX2FC_FLAG_ELS_TIMEOUT, &io_req->req_flags);
+
+			if ((io_req->cb_func) && (io_req->cb_arg)) {
+				io_req->cb_func(io_req->cb_arg);
+				io_req->cb_arg = NULL;
+			}
+		}
+		break;
+	default:
+		printk(KERN_ERR PFX "cmd_timeout: invalid cmd_type %d\n",
+			cmd_type);
+		break;
+	}
+
+done:
+	/* release the cmd that was held when timer was set */
+	kref_put(&io_req->refcount, bnx2fc_cmd_release);
+	spin_unlock_bh(&tgt->tgt_lock);
+}
+
+static void bnx2fc_scsi_done(struct bnx2fc_cmd *io_req, int err_code)
+{
+	/* Called with host lock held */
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+
+	/*
+	 * active_cmd_queue may have other command types as well,
+	 * and during flush operation,  we want to error back only
+	 * scsi commands.
+	 */
+	if (io_req->cmd_type != BNX2FC_SCSI_CMD)
+		return;
+
+	BNX2FC_IO_DBG(io_req, "scsi_done. err_code = 0x%x\n", err_code);
+	bnx2fc_unmap_sg_list(io_req);
+	io_req->sc_cmd = NULL;
+	if (!sc_cmd) {
+		printk(KERN_ERR PFX "scsi_done - sc_cmd NULL. "
+				    "IO(0x%x) already cleaned up\n",
+		       io_req->xid);
+		return;
+	}
+	sc_cmd->result = err_code << 16;
+
+	BNX2FC_IO_DBG(io_req, "sc=%p, result=0x%x, retries=%d, allowed=%d\n",
+		sc_cmd, host_byte(sc_cmd->result), sc_cmd->retries,
+		sc_cmd->allowed);
+	scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+	sc_cmd->SCp.ptr = NULL;
+	sc_cmd->scsi_done(sc_cmd);
+}
+
+struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
+						u16 min_xid, u16 max_xid)
+{
+	struct bnx2fc_cmd_mgr *cmgr;
+	struct io_bdt *bdt_info;
+	struct bnx2fc_cmd *io_req;
+	size_t len;
+	u32 mem_size;
+	u16 xid;
+	int i;
+	int num_ios;
+	size_t bd_tbl_sz;
+
+	if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
+		printk(KERN_ERR PFX "cmd_mgr_alloc: Invalid min_xid 0x%x \
+					and max_xid 0x%x\n", min_xid, max_xid);
+		return NULL;
+	}
+	BNX2FC_MISC_DBG("min xid 0x%x, max xid 0x%x\n", min_xid, max_xid);
+
+	num_ios = max_xid - min_xid + 1;
+	len = (num_ios * (sizeof(struct bnx2fc_cmd *)));
+	len += sizeof(struct bnx2fc_cmd_mgr);
+
+	cmgr = kzalloc(len, GFP_KERNEL);
+	if (!cmgr) {
+		printk(KERN_ERR PFX "failed to alloc cmgr\n");
+		return NULL;
+	}
+
+	cmgr->free_list = kzalloc(sizeof(*cmgr->free_list) *
+				  num_possible_cpus(), GFP_KERNEL);
+	if (!cmgr->free_list) {
+		printk(KERN_ERR PFX "failed to alloc free_list\n");
+		goto mem_err;
+	}
+
+	cmgr->free_list_lock = kzalloc(sizeof(*cmgr->free_list_lock) *
+				       num_possible_cpus(), GFP_KERNEL);
+	if (!cmgr->free_list_lock) {
+		printk(KERN_ERR PFX "failed to alloc free_list_lock\n");
+		goto mem_err;
+	}
+
+	cmgr->hba = hba;
+	cmgr->cmds = (struct bnx2fc_cmd **)(cmgr + 1);
+
+	for (i = 0; i < num_possible_cpus(); i++)  {
+		INIT_LIST_HEAD(&cmgr->free_list[i]);
+		spin_lock_init(&cmgr->free_list_lock[i]);
+	}
+
+	/* Pre-allocated pool of bnx2fc_cmds */
+	xid = BNX2FC_MIN_XID;
+	for (i = 0; i < num_ios; i++) {
+		io_req = kzalloc(sizeof(*io_req), GFP_KERNEL);
+
+		if (!io_req) {
+			printk(KERN_ERR PFX "failed to alloc io_req\n");
+			goto mem_err;
+		}
+
+		INIT_LIST_HEAD(&io_req->link);
+		INIT_DELAYED_WORK(&io_req->timeout_work, bnx2fc_cmd_timeout);
+
+		io_req->xid = xid++;
+		if (io_req->xid >= BNX2FC_MAX_OUTSTANDING_CMNDS)
+			printk(KERN_ERR PFX "ERROR allocating xids - 0x%x\n",
+				io_req->xid);
+		list_add_tail(&io_req->link,
+			&cmgr->free_list[io_req->xid % num_possible_cpus()]);
+		io_req++;
+	}
+
+	/* Allocate pool of io_bdts - one for each bnx2fc_cmd */
+	mem_size = num_ios * sizeof(struct io_bdt *);
+	cmgr->io_bdt_pool = kmalloc(mem_size, GFP_KERNEL);
+	if (!cmgr->io_bdt_pool) {
+		printk(KERN_ERR PFX "failed to alloc io_bdt_pool\n");
+		goto mem_err;
+	}
+
+	mem_size = sizeof(struct io_bdt);
+	for (i = 0; i < num_ios; i++) {
+		cmgr->io_bdt_pool[i] = kmalloc(mem_size, GFP_KERNEL);
+		if (!cmgr->io_bdt_pool[i]) {
+			printk(KERN_ERR PFX "failed to alloc "
+				"io_bdt_pool[%d]\n", i);
+			goto mem_err;
+		}
+	}
+
+	/* Allocate an map fcoe_bdt_ctx structures */
+	bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
+	for (i = 0; i < num_ios; i++) {
+		bdt_info = cmgr->io_bdt_pool[i];
+		bdt_info->bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
+						      bd_tbl_sz,
+						      &bdt_info->bd_tbl_dma,
+						      GFP_KERNEL);
+		if (!bdt_info->bd_tbl) {
+			printk(KERN_ERR PFX "failed to alloc "
+				"bdt_tbl[%d]\n", i);
+			goto mem_err;
+		}
+	}
+
+	return cmgr;
+
+mem_err:
+	bnx2fc_cmd_mgr_free(cmgr);
+	return NULL;
+}
+
+void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr)
+{
+	struct io_bdt *bdt_info;
+	struct bnx2fc_hba *hba = cmgr->hba;
+	size_t bd_tbl_sz;
+	u16 min_xid = BNX2FC_MIN_XID;
+	u16 max_xid = BNX2FC_MAX_XID;
+	int num_ios;
+	int i;
+
+	num_ios = max_xid - min_xid + 1;
+
+	/* Free fcoe_bdt_ctx structures */
+	if (!cmgr->io_bdt_pool)
+		goto free_cmd_pool;
+
+	bd_tbl_sz = BNX2FC_MAX_BDS_PER_CMD * sizeof(struct fcoe_bd_ctx);
+	for (i = 0; i < num_ios; i++) {
+		bdt_info = cmgr->io_bdt_pool[i];
+		if (bdt_info->bd_tbl) {
+			dma_free_coherent(&hba->pcidev->dev, bd_tbl_sz,
+					    bdt_info->bd_tbl,
+					    bdt_info->bd_tbl_dma);
+			bdt_info->bd_tbl = NULL;
+		}
+	}
+
+	/* Destroy io_bdt pool */
+	for (i = 0; i < num_ios; i++) {
+		kfree(cmgr->io_bdt_pool[i]);
+		cmgr->io_bdt_pool[i] = NULL;
+	}
+
+	kfree(cmgr->io_bdt_pool);
+	cmgr->io_bdt_pool = NULL;
+
+free_cmd_pool:
+	kfree(cmgr->free_list_lock);
+
+	/* Destroy cmd pool */
+	if (!cmgr->free_list)
+		goto free_cmgr;
+
+	for (i = 0; i < num_possible_cpus(); i++)  {
+		struct list_head *list;
+		struct list_head *tmp;
+
+		list_for_each_safe(list, tmp, &cmgr->free_list[i]) {
+			struct bnx2fc_cmd *io_req = (struct bnx2fc_cmd *)list;
+			list_del(&io_req->link);
+			kfree(io_req);
+		}
+	}
+	kfree(cmgr->free_list);
+free_cmgr:
+	/* Free command manager itself */
+	kfree(cmgr);
+}
+
+struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type)
+{
+	struct fcoe_port *port = tgt->port;
+	struct bnx2fc_hba *hba = port->priv;
+	struct bnx2fc_cmd_mgr *cmd_mgr = hba->cmd_mgr;
+	struct bnx2fc_cmd *io_req;
+	struct list_head *listp;
+	struct io_bdt *bd_tbl;
+	u32 max_sqes;
+	u16 xid;
+
+	max_sqes = tgt->max_sqes;
+	switch (type) {
+	case BNX2FC_TASK_MGMT_CMD:
+		max_sqes = BNX2FC_TM_MAX_SQES;
+		break;
+	case BNX2FC_ELS:
+		max_sqes = BNX2FC_ELS_MAX_SQES;
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * NOTE: Free list insertions and deletions are protected with
+	 * cmgr lock
+	 */
+	spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+	if ((list_empty(&(cmd_mgr->free_list[smp_processor_id()]))) ||
+	    (tgt->num_active_ios.counter  >= max_sqes)) {
+		BNX2FC_TGT_DBG(tgt, "No free els_tm cmds available "
+			"ios(%d):sqes(%d)\n",
+			tgt->num_active_ios.counter, tgt->max_sqes);
+		if (list_empty(&(cmd_mgr->free_list[smp_processor_id()])))
+			printk(KERN_ERR PFX "elstm_alloc: list_empty\n");
+		spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+		return NULL;
+	}
+
+	listp = (struct list_head *)
+			cmd_mgr->free_list[smp_processor_id()].next;
+	list_del_init(listp);
+	io_req = (struct bnx2fc_cmd *) listp;
+	xid = io_req->xid;
+	cmd_mgr->cmds[xid] = io_req;
+	atomic_inc(&tgt->num_active_ios);
+	spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+
+	INIT_LIST_HEAD(&io_req->link);
+
+	io_req->port = port;
+	io_req->cmd_mgr = cmd_mgr;
+	io_req->req_flags = 0;
+	io_req->cmd_type = type;
+
+	/* Bind io_bdt for this io_req */
+	/* Have a static link between io_req and io_bdt_pool */
+	bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+	bd_tbl->io_req = io_req;
+
+	/* Hold the io_req  against deletion */
+	kref_init(&io_req->refcount);
+	return io_req;
+}
+static struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt)
+{
+	struct fcoe_port *port = tgt->port;
+	struct bnx2fc_hba *hba = port->priv;
+	struct bnx2fc_cmd_mgr *cmd_mgr = hba->cmd_mgr;
+	struct bnx2fc_cmd *io_req;
+	struct list_head *listp;
+	struct io_bdt *bd_tbl;
+	u32 max_sqes;
+	u16 xid;
+
+	max_sqes = BNX2FC_SCSI_MAX_SQES;
+	/*
+	 * NOTE: Free list insertions and deletions are protected with
+	 * cmgr lock
+	 */
+	spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+	if ((list_empty(&cmd_mgr->free_list[smp_processor_id()])) ||
+	    (tgt->num_active_ios.counter  >= max_sqes)) {
+		spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+		return NULL;
+	}
+
+	listp = (struct list_head *)
+		cmd_mgr->free_list[smp_processor_id()].next;
+	list_del_init(listp);
+	io_req = (struct bnx2fc_cmd *) listp;
+	xid = io_req->xid;
+	cmd_mgr->cmds[xid] = io_req;
+	atomic_inc(&tgt->num_active_ios);
+	spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+
+	INIT_LIST_HEAD(&io_req->link);
+
+	io_req->port = port;
+	io_req->cmd_mgr = cmd_mgr;
+	io_req->req_flags = 0;
+
+	/* Bind io_bdt for this io_req */
+	/* Have a static link between io_req and io_bdt_pool */
+	bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+	bd_tbl->io_req = io_req;
+
+	/* Hold the io_req  against deletion */
+	kref_init(&io_req->refcount);
+	return io_req;
+}
+
+void bnx2fc_cmd_release(struct kref *ref)
+{
+	struct bnx2fc_cmd *io_req = container_of(ref,
+						struct bnx2fc_cmd, refcount);
+	struct bnx2fc_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+
+	spin_lock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+	if (io_req->cmd_type != BNX2FC_SCSI_CMD)
+		bnx2fc_free_mp_resc(io_req);
+	cmd_mgr->cmds[io_req->xid] = NULL;
+	/* Delete IO from retire queue */
+	list_del_init(&io_req->link);
+	/* Add it to the free list */
+	list_add(&io_req->link,
+			&cmd_mgr->free_list[smp_processor_id()]);
+	atomic_dec(&io_req->tgt->num_active_ios);
+	spin_unlock_bh(&cmd_mgr->free_list_lock[smp_processor_id()]);
+}
+
+static void bnx2fc_free_mp_resc(struct bnx2fc_cmd *io_req)
+{
+	struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
+	struct bnx2fc_hba *hba = io_req->port->priv;
+	size_t sz = sizeof(struct fcoe_bd_ctx);
+
+	/* clear tm flags */
+	mp_req->tm_flags = 0;
+	if (mp_req->mp_req_bd) {
+		dma_free_coherent(&hba->pcidev->dev, sz,
+				     mp_req->mp_req_bd,
+				     mp_req->mp_req_bd_dma);
+		mp_req->mp_req_bd = NULL;
+	}
+	if (mp_req->mp_resp_bd) {
+		dma_free_coherent(&hba->pcidev->dev, sz,
+				     mp_req->mp_resp_bd,
+				     mp_req->mp_resp_bd_dma);
+		mp_req->mp_resp_bd = NULL;
+	}
+	if (mp_req->req_buf) {
+		dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				     mp_req->req_buf,
+				     mp_req->req_buf_dma);
+		mp_req->req_buf = NULL;
+	}
+	if (mp_req->resp_buf) {
+		dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
+				     mp_req->resp_buf,
+				     mp_req->resp_buf_dma);
+		mp_req->resp_buf = NULL;
+	}
+}
+
+int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req)
+{
+	struct bnx2fc_mp_req *mp_req;
+	struct fcoe_bd_ctx *mp_req_bd;
+	struct fcoe_bd_ctx *mp_resp_bd;
+	struct bnx2fc_hba *hba = io_req->port->priv;
+	dma_addr_t addr;
+	size_t sz;
+
+	mp_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
+	memset(mp_req, 0, sizeof(struct bnx2fc_mp_req));
+
+	mp_req->req_len = sizeof(struct fcp_cmnd);
+	io_req->data_xfer_len = mp_req->req_len;
+	mp_req->req_buf = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
+					     &mp_req->req_buf_dma,
+					     GFP_ATOMIC);
+	if (!mp_req->req_buf) {
+		printk(KERN_ERR PFX "unable to alloc MP req buffer\n");
+		bnx2fc_free_mp_resc(io_req);
+		return FAILED;
+	}
+
+	mp_req->resp_buf = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
+					      &mp_req->resp_buf_dma,
+					      GFP_ATOMIC);
+	if (!mp_req->resp_buf) {
+		printk(KERN_ERR PFX "unable to alloc TM resp buffer\n");
+		bnx2fc_free_mp_resc(io_req);
+		return FAILED;
+	}
+	memset(mp_req->req_buf, 0, PAGE_SIZE);
+	memset(mp_req->resp_buf, 0, PAGE_SIZE);
+
+	/* Allocate and map mp_req_bd and mp_resp_bd */
+	sz = sizeof(struct fcoe_bd_ctx);
+	mp_req->mp_req_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
+						 &mp_req->mp_req_bd_dma,
+						 GFP_ATOMIC);
+	if (!mp_req->mp_req_bd) {
+		printk(KERN_ERR PFX "unable to alloc MP req bd\n");
+		bnx2fc_free_mp_resc(io_req);
+		return FAILED;
+	}
+	mp_req->mp_resp_bd = dma_alloc_coherent(&hba->pcidev->dev, sz,
+						 &mp_req->mp_resp_bd_dma,
+						 GFP_ATOMIC);
+	if (!mp_req->mp_req_bd) {
+		printk(KERN_ERR PFX "unable to alloc MP resp bd\n");
+		bnx2fc_free_mp_resc(io_req);
+		return FAILED;
+	}
+	/* Fill bd table */
+	addr = mp_req->req_buf_dma;
+	mp_req_bd = mp_req->mp_req_bd;
+	mp_req_bd->buf_addr_lo = (u32)addr & 0xffffffff;
+	mp_req_bd->buf_addr_hi = (u32)((u64)addr >> 32);
+	mp_req_bd->buf_len = PAGE_SIZE;
+	mp_req_bd->flags = 0;
+
+	/*
+	 * MP buffer is either a task mgmt command or an ELS.
+	 * So the assumption is that it consumes a single bd
+	 * entry in the bd table
+	 */
+	mp_resp_bd = mp_req->mp_resp_bd;
+	addr = mp_req->resp_buf_dma;
+	mp_resp_bd->buf_addr_lo = (u32)addr & 0xffffffff;
+	mp_resp_bd->buf_addr_hi = (u32)((u64)addr >> 32);
+	mp_resp_bd->buf_len = PAGE_SIZE;
+	mp_resp_bd->flags = 0;
+
+	return SUCCESS;
+}
+
+static int bnx2fc_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
+{
+	struct fc_lport *lport;
+	struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+	struct fc_rport_libfc_priv *rp = rport->dd_data;
+	struct fcoe_port *port;
+	struct bnx2fc_hba *hba;
+	struct bnx2fc_rport *tgt;
+	struct bnx2fc_cmd *io_req;
+	struct bnx2fc_mp_req *tm_req;
+	struct fcoe_task_ctx_entry *task;
+	struct fcoe_task_ctx_entry *task_page;
+	struct Scsi_Host *host = sc_cmd->device->host;
+	struct fc_frame_header *fc_hdr;
+	struct fcp_cmnd *fcp_cmnd;
+	int task_idx, index;
+	int rc = SUCCESS;
+	u16 xid;
+	u32 sid, did;
+	unsigned long start = jiffies;
+
+	lport = shost_priv(host);
+	port = lport_priv(lport);
+	hba = port->priv;
+
+	if (rport == NULL) {
+		printk(KERN_ALERT PFX "device_reset: rport is NULL\n");
+		rc = FAILED;
+		goto tmf_err;
+	}
+
+	rc = fc_block_scsi_eh(sc_cmd);
+	if (rc)
+		return rc;
+
+	if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+		printk(KERN_ERR PFX "device_reset: link is not ready\n");
+		rc = FAILED;
+		goto tmf_err;
+	}
+	/* rport and tgt are allocated together, so tgt should be non-NULL */
+	tgt = (struct bnx2fc_rport *)&rp[1];
+
+	if (!(test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+		printk(KERN_ERR PFX "device_reset: tgt not offloaded\n");
+		rc = FAILED;
+		goto tmf_err;
+	}
+retry_tmf:
+	io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_TASK_MGMT_CMD);
+	if (!io_req) {
+		if (time_after(jiffies, start + HZ)) {
+			printk(KERN_ERR PFX "tmf: Failed TMF");
+			rc = FAILED;
+			goto tmf_err;
+		}
+		msleep(20);
+		goto retry_tmf;
+	}
+	/* Initialize rest of io_req fields */
+	io_req->sc_cmd = sc_cmd;
+	io_req->port = port;
+	io_req->tgt = tgt;
+
+	tm_req = (struct bnx2fc_mp_req *)&(io_req->mp_req);
+
+	rc = bnx2fc_init_mp_req(io_req);
+	if (rc == FAILED) {
+		printk(KERN_ERR PFX "Task mgmt MP request init failed\n");
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		goto tmf_err;
+	}
+
+	/* Set TM flags */
+	io_req->io_req_flags = 0;
+	tm_req->tm_flags = tm_flags;
+
+	/* Fill FCP_CMND */
+	bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
+	fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
+	memset(fcp_cmnd->fc_cdb, 0,  sc_cmd->cmd_len);
+	fcp_cmnd->fc_dl = 0;
+
+	/* Fill FC header */
+	fc_hdr = &(tm_req->req_fc_hdr);
+	sid = tgt->sid;
+	did = rport->port_id;
+	__fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, did, sid,
+			   FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+			   FC_FC_SEQ_INIT, 0);
+	/* Obtain exchange id */
+	xid = io_req->xid;
+
+	BNX2FC_TGT_DBG(tgt, "Initiate TMF - xid = 0x%x\n", xid);
+	task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+	index = xid % BNX2FC_TASKS_PER_PAGE;
+
+	/* Initialize task context for this IO request */
+	task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+	task = &(task_page[index]);
+	bnx2fc_init_mp_task(io_req, task);
+
+	sc_cmd->SCp.ptr = (char *)io_req;
+
+	/* Obtain free SQ entry */
+	spin_lock_bh(&tgt->tgt_lock);
+	bnx2fc_add_2_sq(tgt, xid);
+
+	/* Enqueue the io_req to active_tm_queue */
+	io_req->on_tmf_queue = 1;
+	list_add_tail(&io_req->link, &tgt->active_tm_queue);
+
+	init_completion(&io_req->tm_done);
+	io_req->wait_for_comp = 1;
+
+	/* Ring doorbell */
+	bnx2fc_ring_doorbell(tgt);
+	spin_unlock_bh(&tgt->tgt_lock);
+
+	rc = wait_for_completion_timeout(&io_req->tm_done,
+					 BNX2FC_TM_TIMEOUT * HZ);
+	spin_lock_bh(&tgt->tgt_lock);
+
+	io_req->wait_for_comp = 0;
+	if (!(test_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags)))
+		set_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags);
+
+	spin_unlock_bh(&tgt->tgt_lock);
+
+	if (!rc) {
+		printk(KERN_ERR PFX "task mgmt command failed...\n");
+		rc = FAILED;
+	} else {
+		printk(KERN_ERR PFX "task mgmt command success...\n");
+		rc = SUCCESS;
+	}
+tmf_err:
+	return rc;
+}
+
+int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req)
+{
+	struct fc_lport *lport;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	struct fc_rport *rport = tgt->rport;
+	struct fc_rport_priv *rdata = tgt->rdata;
+	struct bnx2fc_hba *hba;
+	struct fcoe_port *port;
+	struct bnx2fc_cmd *abts_io_req;
+	struct fcoe_task_ctx_entry *task;
+	struct fcoe_task_ctx_entry *task_page;
+	struct fc_frame_header *fc_hdr;
+	struct bnx2fc_mp_req *abts_req;
+	int task_idx, index;
+	u32 sid, did;
+	u16 xid;
+	int rc = SUCCESS;
+	u32 r_a_tov = rdata->r_a_tov;
+
+	/* called with tgt_lock held */
+	BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_abts\n");
+
+	port = io_req->port;
+	hba = port->priv;
+	lport = port->lport;
+
+	if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+		printk(KERN_ERR PFX "initiate_abts: tgt not offloaded\n");
+		rc = FAILED;
+		goto abts_err;
+	}
+
+	if (rport == NULL) {
+		printk(KERN_ALERT PFX "initiate_abts: rport is NULL\n");
+		rc = FAILED;
+		goto abts_err;
+	}
+
+	if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+		printk(KERN_ERR PFX "initiate_abts: link is not ready\n");
+		rc = FAILED;
+		goto abts_err;
+	}
+
+	abts_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ABTS);
+	if (!abts_io_req) {
+		printk(KERN_ERR PFX "abts: couldnt allocate cmd\n");
+		rc = FAILED;
+		goto abts_err;
+	}
+
+	/* Initialize rest of io_req fields */
+	abts_io_req->sc_cmd = NULL;
+	abts_io_req->port = port;
+	abts_io_req->tgt = tgt;
+	abts_io_req->data_xfer_len = 0; /* No data transfer for ABTS */
+
+	abts_req = (struct bnx2fc_mp_req *)&(abts_io_req->mp_req);
+	memset(abts_req, 0, sizeof(struct bnx2fc_mp_req));
+
+	/* Fill FC header */
+	fc_hdr = &(abts_req->req_fc_hdr);
+
+	/* Obtain oxid and rxid for the original exchange to be aborted */
+	fc_hdr->fh_ox_id = htons(io_req->xid);
+	fc_hdr->fh_rx_id = htons(io_req->task->rx_wr_tx_rd.rx_id);
+
+	sid = tgt->sid;
+	did = rport->port_id;
+
+	__fc_fill_fc_hdr(fc_hdr, FC_RCTL_BA_ABTS, did, sid,
+			   FC_TYPE_BLS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+			   FC_FC_SEQ_INIT, 0);
+
+	xid = abts_io_req->xid;
+	BNX2FC_IO_DBG(abts_io_req, "ABTS io_req\n");
+	task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+	index = xid % BNX2FC_TASKS_PER_PAGE;
+
+	/* Initialize task context for this IO request */
+	task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+	task = &(task_page[index]);
+	bnx2fc_init_mp_task(abts_io_req, task);
+
+	/*
+	 * ABTS task is a temporary task that will be cleaned up
+	 * irrespective of ABTS response. We need to start the timer
+	 * for the original exchange, as the CQE is posted for the original
+	 * IO request.
+	 *
+	 * Timer for ABTS is started only when it is originated by a
+	 * TM request. For the ABTS issued as part of ULP timeout,
+	 * scsi-ml maintains the timers.
+	 */
+
+	/* if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))*/
+	bnx2fc_cmd_timer_set(io_req, 2 * r_a_tov);
+
+	/* Obtain free SQ entry */
+	bnx2fc_add_2_sq(tgt, xid);
+
+	/* Ring doorbell */
+	bnx2fc_ring_doorbell(tgt);
+
+abts_err:
+	return rc;
+}
+
+int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req)
+{
+	struct fc_lport *lport;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	struct bnx2fc_hba *hba;
+	struct fcoe_port *port;
+	struct bnx2fc_cmd *cleanup_io_req;
+	struct fcoe_task_ctx_entry *task;
+	struct fcoe_task_ctx_entry *task_page;
+	int task_idx, index;
+	u16 xid, orig_xid;
+	int rc = 0;
+
+	/* ASSUMPTION: called with tgt_lock held */
+	BNX2FC_IO_DBG(io_req, "Entered bnx2fc_initiate_cleanup\n");
+
+	port = io_req->port;
+	hba = port->priv;
+	lport = port->lport;
+
+	cleanup_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_CLEANUP);
+	if (!cleanup_io_req) {
+		printk(KERN_ERR PFX "cleanup: couldnt allocate cmd\n");
+		rc = -1;
+		goto cleanup_err;
+	}
+
+	/* Initialize rest of io_req fields */
+	cleanup_io_req->sc_cmd = NULL;
+	cleanup_io_req->port = port;
+	cleanup_io_req->tgt = tgt;
+	cleanup_io_req->data_xfer_len = 0; /* No data transfer for cleanup */
+
+	xid = cleanup_io_req->xid;
+
+	task_idx = xid/BNX2FC_TASKS_PER_PAGE;
+	index = xid % BNX2FC_TASKS_PER_PAGE;
+
+	/* Initialize task context for this IO request */
+	task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+	task = &(task_page[index]);
+	orig_xid = io_req->xid;
+
+	BNX2FC_IO_DBG(io_req, "CLEANUP io_req xid = 0x%x\n", xid);
+
+	bnx2fc_init_cleanup_task(cleanup_io_req, task, orig_xid);
+
+	/* Obtain free SQ entry */
+	bnx2fc_add_2_sq(tgt, xid);
+
+	/* Ring doorbell */
+	bnx2fc_ring_doorbell(tgt);
+
+cleanup_err:
+	return rc;
+}
+
+/**
+ * bnx2fc_eh_target_reset: Reset a target
+ *
+ * @sc_cmd:	SCSI command
+ *
+ * Set from SCSI host template to send task mgmt command to the target
+ *	and wait for the response
+ */
+int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd)
+{
+	return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
+}
+
+/**
+ * bnx2fc_eh_device_reset - Reset a single LUN
+ *
+ * @sc_cmd:	SCSI command
+ *
+ * Set from SCSI host template to send task mgmt command to the target
+ *	and wait for the response
+ */
+int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
+{
+	return bnx2fc_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
+}
+
+/**
+ * bnx2fc_eh_abort - eh_abort_handler api to abort an outstanding
+ *			SCSI command
+ *
+ * @sc_cmd:	SCSI_ML command pointer
+ *
+ * SCSI abort request handler
+ */
+int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
+{
+	struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+	struct fc_rport_libfc_priv *rp = rport->dd_data;
+	struct bnx2fc_cmd *io_req;
+	struct fc_lport *lport;
+	struct bnx2fc_rport *tgt;
+	int rc = FAILED;
+
+
+	rc = fc_block_scsi_eh(sc_cmd);
+	if (rc)
+		return rc;
+
+	lport = shost_priv(sc_cmd->device->host);
+	if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+		printk(KERN_ALERT PFX "eh_abort: link not ready\n");
+		return rc;
+	}
+
+	tgt = (struct bnx2fc_rport *)&rp[1];
+
+	BNX2FC_TGT_DBG(tgt, "Entered bnx2fc_eh_abort\n");
+
+	spin_lock_bh(&tgt->tgt_lock);
+	io_req = (struct bnx2fc_cmd *)sc_cmd->SCp.ptr;
+	if (!io_req) {
+		/* Command might have just completed */
+		printk(KERN_ERR PFX "eh_abort: io_req is NULL\n");
+		spin_unlock_bh(&tgt->tgt_lock);
+		return SUCCESS;
+	}
+	BNX2FC_IO_DBG(io_req, "eh_abort - refcnt = %d\n",
+		      io_req->refcount.refcount.counter);
+
+	/* Hold IO request across abort processing */
+	kref_get(&io_req->refcount);
+
+	BUG_ON(tgt != io_req->tgt);
+
+	/* Remove the io_req from the active_q. */
+	/*
+	 * Task Mgmt functions (LUN RESET & TGT RESET) will not
+	 * issue an ABTS on this particular IO req, as the
+	 * io_req is no longer in the active_q.
+	 */
+	if (tgt->flush_in_prog) {
+		printk(KERN_ALERT PFX "eh_abort: io_req (xid = 0x%x) "
+			"flush in progress\n", io_req->xid);
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return SUCCESS;
+	}
+
+	if (io_req->on_active_queue == 0) {
+		printk(KERN_ALERT PFX "eh_abort: io_req (xid = 0x%x) "
+				"not on active_q\n", io_req->xid);
+		/*
+		 * This condition can happen only due to the FW bug,
+		 * where we do not receive cleanup response from
+		 * the FW. Handle this case gracefully by erroring
+		 * back the IO request to SCSI-ml
+		 */
+		bnx2fc_scsi_done(io_req, DID_ABORT);
+
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return SUCCESS;
+	}
+
+	/*
+	 * Only eh_abort processing will remove the IO from
+	 * active_cmd_q before processing the request. this is
+	 * done to avoid race conditions between IOs aborted
+	 * as part of task management completion and eh_abort
+	 * processing
+	 */
+	list_del_init(&io_req->link);
+	io_req->on_active_queue = 0;
+	/* Move IO req to retire queue */
+	list_add_tail(&io_req->link, &tgt->io_retire_queue);
+
+	init_completion(&io_req->tm_done);
+	io_req->wait_for_comp = 1;
+
+	if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
+		/* Cancel the current timer running on this io_req */
+		if (cancel_delayed_work(&io_req->timeout_work))
+			kref_put(&io_req->refcount,
+				 bnx2fc_cmd_release); /* drop timer hold */
+		set_bit(BNX2FC_FLAG_EH_ABORT, &io_req->req_flags);
+		rc = bnx2fc_initiate_abts(io_req);
+	} else {
+		printk(KERN_ALERT PFX "eh_abort: io_req (xid = 0x%x) "
+				"already in abts processing\n", io_req->xid);
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return SUCCESS;
+	}
+	if (rc == FAILED) {
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return rc;
+	}
+	spin_unlock_bh(&tgt->tgt_lock);
+
+	wait_for_completion(&io_req->tm_done);
+
+	spin_lock_bh(&tgt->tgt_lock);
+	io_req->wait_for_comp = 0;
+	if (!(test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+				    &io_req->req_flags))) {
+		/* Let the scsi-ml try to recover this command */
+		printk(KERN_ERR PFX "abort failed, xid = 0x%x\n",
+		       io_req->xid);
+		rc = FAILED;
+	} else {
+		/*
+		 * We come here even when there was a race condition
+		 * between timeout and abts completion, and abts
+		 * completion happens just in time.
+		 */
+		BNX2FC_IO_DBG(io_req, "abort succeeded\n");
+		rc = SUCCESS;
+		bnx2fc_scsi_done(io_req, DID_ABORT);
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+	}
+
+	/* release the reference taken in eh_abort */
+	kref_put(&io_req->refcount, bnx2fc_cmd_release);
+	spin_unlock_bh(&tgt->tgt_lock);
+	return rc;
+}
+
+void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
+				  struct fcoe_task_ctx_entry *task,
+				  u8 num_rq)
+{
+	BNX2FC_IO_DBG(io_req, "Entered process_cleanup_compl "
+			      "refcnt = %d, cmd_type = %d\n",
+		   io_req->refcount.refcount.counter, io_req->cmd_type);
+	bnx2fc_scsi_done(io_req, DID_ERROR);
+	kref_put(&io_req->refcount, bnx2fc_cmd_release);
+}
+
+void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
+			       struct fcoe_task_ctx_entry *task,
+			       u8 num_rq)
+{
+	u32 r_ctl;
+	u32 r_a_tov = FC_DEF_R_A_TOV;
+	u8 issue_rrq = 0;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+
+	BNX2FC_IO_DBG(io_req, "Entered process_abts_compl xid = 0x%x"
+			      "refcnt = %d, cmd_type = %d\n",
+		   io_req->xid,
+		   io_req->refcount.refcount.counter, io_req->cmd_type);
+
+	if (test_and_set_bit(BNX2FC_FLAG_ABTS_DONE,
+				       &io_req->req_flags)) {
+		BNX2FC_IO_DBG(io_req, "Timer context finished processing"
+				" this io\n");
+		return;
+	}
+
+	/* Do not issue RRQ as this IO is already cleanedup */
+	if (test_and_set_bit(BNX2FC_FLAG_IO_CLEANUP,
+				&io_req->req_flags))
+		goto io_compl;
+
+	/*
+	 * For ABTS issued due to SCSI eh_abort_handler, timeout
+	 * values are maintained by scsi-ml itself. Cancel timeout
+	 * in case ABTS issued as part of task management function
+	 * or due to FW error.
+	 */
+	if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags))
+		if (cancel_delayed_work(&io_req->timeout_work))
+			kref_put(&io_req->refcount,
+				 bnx2fc_cmd_release); /* drop timer hold */
+
+	r_ctl = task->cmn.general.rsp_info.abts_rsp.r_ctl;
+
+	switch (r_ctl) {
+	case FC_RCTL_BA_ACC:
+		/*
+		 * Dont release this cmd yet. It will be relesed
+		 * after we get RRQ response
+		 */
+		BNX2FC_IO_DBG(io_req, "ABTS response - ACC Send RRQ\n");
+		issue_rrq = 1;
+		break;
+
+	case FC_RCTL_BA_RJT:
+		BNX2FC_IO_DBG(io_req, "ABTS response - RJT\n");
+		break;
+	default:
+		printk(KERN_ERR PFX "Unknown ABTS response\n");
+		break;
+	}
+
+	if (issue_rrq) {
+		BNX2FC_IO_DBG(io_req, "Issue RRQ after R_A_TOV\n");
+		set_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
+	}
+	set_bit(BNX2FC_FLAG_RETIRE_OXID, &io_req->req_flags);
+	bnx2fc_cmd_timer_set(io_req, r_a_tov);
+
+io_compl:
+	if (io_req->wait_for_comp) {
+		if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+				       &io_req->req_flags))
+			complete(&io_req->tm_done);
+	} else {
+		/*
+		 * We end up here when ABTS is issued as
+		 * in asynchronous context, i.e., as part
+		 * of task management completion, or
+		 * when FW error is received or when the
+		 * ABTS is issued when the IO is timed
+		 * out.
+		 */
+
+		if (io_req->on_active_queue) {
+			list_del_init(&io_req->link);
+			io_req->on_active_queue = 0;
+			/* Move IO req to retire queue */
+			list_add_tail(&io_req->link, &tgt->io_retire_queue);
+		}
+		bnx2fc_scsi_done(io_req, DID_ERROR);
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+	}
+}
+
+static void bnx2fc_lun_reset_cmpl(struct bnx2fc_cmd *io_req)
+{
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	struct list_head *list;
+	struct list_head *tmp;
+	struct bnx2fc_cmd *cmd;
+	int tm_lun = sc_cmd->device->lun;
+	int rc = 0;
+	int lun;
+
+	/* called with tgt_lock held */
+	BNX2FC_IO_DBG(io_req, "Entered bnx2fc_lun_reset_cmpl\n");
+	/*
+	 * Walk thru the active_ios queue and ABORT the IO
+	 * that matches with the LUN that was reset
+	 */
+	list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+		BNX2FC_TGT_DBG(tgt, "LUN RST cmpl: scan for pending IOs\n");
+		cmd = (struct bnx2fc_cmd *)list;
+		lun = cmd->sc_cmd->device->lun;
+		if (lun == tm_lun) {
+			/* Initiate ABTS on this cmd */
+			if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+					      &cmd->req_flags)) {
+				/* cancel the IO timeout */
+				if (cancel_delayed_work(&io_req->timeout_work))
+					kref_put(&io_req->refcount,
+						 bnx2fc_cmd_release);
+							/* timer hold */
+				rc = bnx2fc_initiate_abts(cmd);
+				/* abts shouldnt fail in this context */
+				WARN_ON(rc != SUCCESS);
+			} else
+				printk(KERN_ERR PFX "lun_rst: abts already in"
+					" progress for this IO 0x%x\n",
+					cmd->xid);
+		}
+	}
+}
+
+static void bnx2fc_tgt_reset_cmpl(struct bnx2fc_cmd *io_req)
+{
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	struct list_head *list;
+	struct list_head *tmp;
+	struct bnx2fc_cmd *cmd;
+	int rc = 0;
+
+	/* called with tgt_lock held */
+	BNX2FC_IO_DBG(io_req, "Entered bnx2fc_tgt_reset_cmpl\n");
+	/*
+	 * Walk thru the active_ios queue and ABORT the IO
+	 * that matches with the LUN that was reset
+	 */
+	list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+		BNX2FC_TGT_DBG(tgt, "TGT RST cmpl: scan for pending IOs\n");
+		cmd = (struct bnx2fc_cmd *)list;
+		/* Initiate ABTS */
+		if (!test_and_set_bit(BNX2FC_FLAG_ISSUE_ABTS,
+							&cmd->req_flags)) {
+			/* cancel the IO timeout */
+			if (cancel_delayed_work(&io_req->timeout_work))
+				kref_put(&io_req->refcount,
+					 bnx2fc_cmd_release); /* timer hold */
+			rc = bnx2fc_initiate_abts(cmd);
+			/* abts shouldnt fail in this context */
+			WARN_ON(rc != SUCCESS);
+
+		} else
+			printk(KERN_ERR PFX "tgt_rst: abts already in progress"
+				" for this IO 0x%x\n", cmd->xid);
+	}
+}
+
+void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
+			     struct fcoe_task_ctx_entry *task, u8 num_rq)
+{
+	struct bnx2fc_mp_req *tm_req;
+	struct fc_frame_header *fc_hdr;
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+	u64 *hdr;
+	u64 *temp_hdr;
+	void *rsp_buf;
+
+	/* Called with tgt_lock held */
+	BNX2FC_IO_DBG(io_req, "Entered process_tm_compl\n");
+
+	if (!(test_bit(BNX2FC_FLAG_TM_TIMEOUT, &io_req->req_flags)))
+		set_bit(BNX2FC_FLAG_TM_COMPL, &io_req->req_flags);
+	else {
+		/* TM has already timed out and we got
+		 * delayed completion. Ignore completion
+		 * processing.
+		 */
+		return;
+	}
+
+	tm_req = &(io_req->mp_req);
+	fc_hdr = &(tm_req->resp_fc_hdr);
+	hdr = (u64 *)fc_hdr;
+	temp_hdr = (u64 *)
+		&task->cmn.general.cmd_info.mp_fc_frame.fc_hdr;
+	hdr[0] = cpu_to_be64(temp_hdr[0]);
+	hdr[1] = cpu_to_be64(temp_hdr[1]);
+	hdr[2] = cpu_to_be64(temp_hdr[2]);
+
+	tm_req->resp_len = task->rx_wr_only.sgl_ctx.mul_sges.cur_sge_off;
+
+	rsp_buf = tm_req->resp_buf;
+
+	if (fc_hdr->fh_r_ctl == FC_RCTL_DD_CMD_STATUS) {
+		bnx2fc_parse_fcp_rsp(io_req,
+				     (struct fcoe_fcp_rsp_payload *)
+				     rsp_buf, num_rq);
+		if (io_req->fcp_rsp_code == 0) {
+			/* TM successful */
+			if (tm_req->tm_flags & FCP_TMF_LUN_RESET)
+				bnx2fc_lun_reset_cmpl(io_req);
+			else if (tm_req->tm_flags & FCP_TMF_TGT_RESET)
+				bnx2fc_tgt_reset_cmpl(io_req);
+		}
+	} else {
+		printk(KERN_ERR PFX "tmf's fc_hdr r_ctl = 0x%x\n",
+			fc_hdr->fh_r_ctl);
+	}
+	if (!sc_cmd->SCp.ptr) {
+		printk(KERN_ALERT PFX "tm_compl: SCp.ptr is NULL\n");
+		return;
+	}
+	switch (io_req->fcp_status) {
+	case FC_GOOD:
+		if (io_req->cdb_status == 0) {
+			/* Good IO completion */
+			sc_cmd->result = DID_OK << 16;
+		} else {
+			/* Transport status is good, SCSI status not good */
+			sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+		}
+		if (io_req->fcp_resid)
+			scsi_set_resid(sc_cmd, io_req->fcp_resid);
+		break;
+
+	default:
+		BNX2FC_IO_DBG(io_req, "process_tm_compl: fcp_status = %d\n",
+			   io_req->fcp_status);
+		break;
+	}
+
+	sc_cmd = io_req->sc_cmd;
+	io_req->sc_cmd = NULL;
+
+	/* check if the io_req exists in tgt's tmf_q */
+	if (io_req->on_tmf_queue) {
+
+		list_del_init(&io_req->link);
+		io_req->on_tmf_queue = 0;
+	} else {
+
+		printk(KERN_ALERT PFX "Command not on active_cmd_queue!\n");
+		return;
+	}
+
+	sc_cmd->SCp.ptr = NULL;
+	sc_cmd->scsi_done(sc_cmd);
+
+	kref_put(&io_req->refcount, bnx2fc_cmd_release);
+	if (io_req->wait_for_comp) {
+		BNX2FC_IO_DBG(io_req, "tm_compl - wake up the waiter\n");
+		complete(&io_req->tm_done);
+	}
+}
+
+static int bnx2fc_split_bd(struct bnx2fc_cmd *io_req, u64 addr, int sg_len,
+			   int bd_index)
+{
+	struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+	int frag_size, sg_frags;
+
+	sg_frags = 0;
+	while (sg_len) {
+		if (sg_len >= BNX2FC_BD_SPLIT_SZ)
+			frag_size = BNX2FC_BD_SPLIT_SZ;
+		else
+			frag_size = sg_len;
+		bd[bd_index + sg_frags].buf_addr_lo = addr & 0xffffffff;
+		bd[bd_index + sg_frags].buf_addr_hi  = addr >> 32;
+		bd[bd_index + sg_frags].buf_len = (u16)frag_size;
+		bd[bd_index + sg_frags].flags = 0;
+
+		addr += (u64) frag_size;
+		sg_frags++;
+		sg_len -= frag_size;
+	}
+	return sg_frags;
+
+}
+
+static int bnx2fc_map_sg(struct bnx2fc_cmd *io_req)
+{
+	struct scsi_cmnd *sc = io_req->sc_cmd;
+	struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+	struct scatterlist *sg;
+	int byte_count = 0;
+	int sg_count = 0;
+	int bd_count = 0;
+	int sg_frags;
+	unsigned int sg_len;
+	u64 addr;
+	int i;
+
+	sg_count = scsi_dma_map(sc);
+	scsi_for_each_sg(sc, sg, sg_count, i) {
+		sg_len = sg_dma_len(sg);
+		addr = sg_dma_address(sg);
+		if (sg_len > BNX2FC_MAX_BD_LEN) {
+			sg_frags = bnx2fc_split_bd(io_req, addr, sg_len,
+						   bd_count);
+		} else {
+
+			sg_frags = 1;
+			bd[bd_count].buf_addr_lo = addr & 0xffffffff;
+			bd[bd_count].buf_addr_hi  = addr >> 32;
+			bd[bd_count].buf_len = (u16)sg_len;
+			bd[bd_count].flags = 0;
+		}
+		bd_count += sg_frags;
+		byte_count += sg_len;
+	}
+	if (byte_count != scsi_bufflen(sc))
+		printk(KERN_ERR PFX "byte_count = %d != scsi_bufflen = %d, "
+			"task_id = 0x%x\n", byte_count, scsi_bufflen(sc),
+			io_req->xid);
+	return bd_count;
+}
+
+static void bnx2fc_build_bd_list_from_sg(struct bnx2fc_cmd *io_req)
+{
+	struct scsi_cmnd *sc = io_req->sc_cmd;
+	struct fcoe_bd_ctx *bd = io_req->bd_tbl->bd_tbl;
+	int bd_count;
+
+	if (scsi_sg_count(sc))
+		bd_count = bnx2fc_map_sg(io_req);
+	else {
+		bd_count = 0;
+		bd[0].buf_addr_lo = bd[0].buf_addr_hi = 0;
+		bd[0].buf_len = bd[0].flags = 0;
+	}
+	io_req->bd_tbl->bd_valid = bd_count;
+}
+
+static void bnx2fc_unmap_sg_list(struct bnx2fc_cmd *io_req)
+{
+	struct scsi_cmnd *sc = io_req->sc_cmd;
+
+	if (io_req->bd_tbl->bd_valid && sc) {
+		scsi_dma_unmap(sc);
+		io_req->bd_tbl->bd_valid = 0;
+	}
+}
+
+void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
+				  struct fcp_cmnd *fcp_cmnd)
+{
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+	char tag[2];
+
+	memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
+
+	int_to_scsilun(sc_cmd->device->lun,
+			(struct scsi_lun *) fcp_cmnd->fc_lun);
+
+
+	fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
+	memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
+
+	fcp_cmnd->fc_cmdref = 0;
+	fcp_cmnd->fc_pri_ta = 0;
+	fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
+	fcp_cmnd->fc_flags = io_req->io_req_flags;
+
+	if (scsi_populate_tag_msg(sc_cmd, tag)) {
+		switch (tag[0]) {
+		case HEAD_OF_QUEUE_TAG:
+			fcp_cmnd->fc_pri_ta = FCP_PTA_HEADQ;
+			break;
+		case ORDERED_QUEUE_TAG:
+			fcp_cmnd->fc_pri_ta = FCP_PTA_ORDERED;
+			break;
+		default:
+			fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
+			break;
+		}
+	} else {
+		fcp_cmnd->fc_pri_ta = 0;
+	}
+}
+
+static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
+				 struct fcoe_fcp_rsp_payload *fcp_rsp,
+				 u8 num_rq)
+{
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	u8 rsp_flags = fcp_rsp->fcp_flags.flags;
+	u32 rq_buff_len = 0;
+	int i;
+	unsigned char *rq_data;
+	unsigned char *dummy;
+	int fcp_sns_len = 0;
+	int fcp_rsp_len = 0;
+
+	io_req->fcp_status = FC_GOOD;
+	io_req->fcp_resid = fcp_rsp->fcp_resid;
+
+	io_req->scsi_comp_flags = rsp_flags;
+	CMD_SCSI_STATUS(sc_cmd) = io_req->cdb_status =
+				fcp_rsp->scsi_status_code;
+
+	/* Fetch fcp_rsp_info and fcp_sns_info if available */
+	if (num_rq) {
+
+		/*
+		 * We do not anticipate num_rq >1, as the linux defined
+		 * SCSI_SENSE_BUFFERSIZE is 96 bytes + 8 bytes of FCP_RSP_INFO
+		 * 256 bytes of single rq buffer is good enough to hold this.
+		 */
+
+		if (rsp_flags &
+		    FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID) {
+			fcp_rsp_len = rq_buff_len
+					= fcp_rsp->fcp_rsp_len;
+		}
+
+		if (rsp_flags &
+		    FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID) {
+			fcp_sns_len = fcp_rsp->fcp_sns_len;
+			rq_buff_len += fcp_rsp->fcp_sns_len;
+		}
+
+		io_req->fcp_rsp_len = fcp_rsp_len;
+		io_req->fcp_sns_len = fcp_sns_len;
+
+		if (rq_buff_len > num_rq * BNX2FC_RQ_BUF_SZ) {
+			/* Invalid sense sense length. */
+			printk(KERN_ALERT PFX "invalid sns length %d\n",
+				rq_buff_len);
+			/* reset rq_buff_len */
+			rq_buff_len =  num_rq * BNX2FC_RQ_BUF_SZ;
+		}
+
+		rq_data = bnx2fc_get_next_rqe(tgt, 1);
+
+		if (num_rq > 1) {
+			/* We do not need extra sense data */
+			for (i = 1; i < num_rq; i++)
+				dummy = bnx2fc_get_next_rqe(tgt, 1);
+		}
+
+		/* fetch fcp_rsp_code */
+		if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
+			/* Only for task management function */
+			io_req->fcp_rsp_code = rq_data[3];
+			printk(KERN_ERR PFX "fcp_rsp_code = %d\n",
+				io_req->fcp_rsp_code);
+		}
+
+		/* fetch sense data */
+		rq_data += fcp_rsp_len;
+
+		if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
+			printk(KERN_ERR PFX "Truncating sense buffer\n");
+			fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
+		}
+
+		memset(sc_cmd->sense_buffer, 0, sizeof(sc_cmd->sense_buffer));
+		if (fcp_sns_len)
+			memcpy(sc_cmd->sense_buffer, rq_data, fcp_sns_len);
+
+		/* return RQ entries */
+		for (i = 0; i < num_rq; i++)
+			bnx2fc_return_rqe(tgt, 1);
+	}
+}
+
+/**
+ * bnx2fc_queuecommand - Queuecommand function of the scsi template
+ *
+ * @host:	The Scsi_Host the command was issued to
+ * @sc_cmd:	struct scsi_cmnd to be executed
+ *
+ * This is the IO strategy routine, called by SCSI-ML
+ **/
+int bnx2fc_queuecommand(struct Scsi_Host *host,
+			struct scsi_cmnd *sc_cmd)
+{
+	struct fc_lport *lport = shost_priv(host);
+	struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+	struct fc_rport_libfc_priv *rp = rport->dd_data;
+	struct bnx2fc_rport *tgt;
+	struct bnx2fc_cmd *io_req;
+	int rc = 0;
+	int rval;
+
+	rval = fc_remote_port_chkready(rport);
+	if (rval) {
+		sc_cmd->result = rval;
+		sc_cmd->scsi_done(sc_cmd);
+		return 0;
+	}
+
+	if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+		rc = SCSI_MLQUEUE_HOST_BUSY;
+		goto exit_qcmd;
+	}
+
+	/* rport and tgt are allocated together, so tgt should be non-NULL */
+	tgt = (struct bnx2fc_rport *)&rp[1];
+
+	if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+		/*
+		 * Session is not offloaded yet. Let SCSI-ml retry
+		 * the command.
+		 */
+		rc = SCSI_MLQUEUE_TARGET_BUSY;
+		goto exit_qcmd;
+	}
+
+	io_req = bnx2fc_cmd_alloc(tgt);
+	if (!io_req) {
+		rc = SCSI_MLQUEUE_HOST_BUSY;
+		goto exit_qcmd;
+	}
+	io_req->sc_cmd = sc_cmd;
+
+	if (bnx2fc_post_io_req(tgt, io_req)) {
+		printk(KERN_ERR PFX "Unable to post io_req\n");
+		rc = SCSI_MLQUEUE_HOST_BUSY;
+		goto exit_qcmd;
+	}
+exit_qcmd:
+	return rc;
+}
+
+void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
+				   struct fcoe_task_ctx_entry *task,
+				   u8 num_rq)
+{
+	struct fcoe_fcp_rsp_payload *fcp_rsp;
+	struct bnx2fc_rport *tgt = io_req->tgt;
+	struct scsi_cmnd *sc_cmd;
+	struct Scsi_Host *host;
+
+
+	/* scsi_cmd_cmpl is called with tgt lock held */
+
+	if (test_and_set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags)) {
+		/* we will not receive ABTS response for this IO */
+		BNX2FC_IO_DBG(io_req, "Timer context finished processing "
+			   "this scsi cmd\n");
+	}
+
+	/* Cancel the timeout_work, as we received IO completion */
+	if (cancel_delayed_work(&io_req->timeout_work))
+		kref_put(&io_req->refcount,
+			 bnx2fc_cmd_release); /* drop timer hold */
+
+	sc_cmd = io_req->sc_cmd;
+	if (sc_cmd == NULL) {
+		printk(KERN_ERR PFX "scsi_cmd_compl - sc_cmd is NULL\n");
+		return;
+	}
+
+	/* Fetch fcp_rsp from task context and perform cmd completion */
+	fcp_rsp = (struct fcoe_fcp_rsp_payload *)
+		   &(task->cmn.general.rsp_info.fcp_rsp.payload);
+
+	/* parse fcp_rsp and obtain sense data from RQ if available */
+	bnx2fc_parse_fcp_rsp(io_req, fcp_rsp, num_rq);
+
+	host = sc_cmd->device->host;
+	if (!sc_cmd->SCp.ptr) {
+		printk(KERN_ERR PFX "SCp.ptr is NULL\n");
+		return;
+	}
+	io_req->sc_cmd = NULL;
+
+	if (io_req->on_active_queue) {
+		list_del_init(&io_req->link);
+		io_req->on_active_queue = 0;
+		/* Move IO req to retire queue */
+		list_add_tail(&io_req->link, &tgt->io_retire_queue);
+	} else {
+		/* This should not happen, but could have been pulled
+		 * by bnx2fc_flush_active_ios(), or during a race
+		 * between command abort and (late) completion.
+		 */
+		BNX2FC_IO_DBG(io_req, "xid not on active_cmd_queue\n");
+		if (io_req->wait_for_comp)
+			if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+					       &io_req->req_flags))
+				complete(&io_req->tm_done);
+	}
+
+	bnx2fc_unmap_sg_list(io_req);
+
+	switch (io_req->fcp_status) {
+	case FC_GOOD:
+		if (io_req->cdb_status == 0) {
+			/* Good IO completion */
+			sc_cmd->result = DID_OK << 16;
+		} else {
+			/* Transport status is good, SCSI status not good */
+			BNX2FC_IO_DBG(io_req, "scsi_cmpl: cdb_status = %d"
+				 " fcp_resid = 0x%x\n",
+				io_req->cdb_status, io_req->fcp_resid);
+			sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+		}
+		if (io_req->fcp_resid)
+			scsi_set_resid(sc_cmd, io_req->fcp_resid);
+		break;
+	default:
+		printk(KERN_ALERT PFX "scsi_cmd_compl: fcp_status = %d\n",
+			io_req->fcp_status);
+		break;
+	}
+	sc_cmd->SCp.ptr = NULL;
+	sc_cmd->scsi_done(sc_cmd);
+	kref_put(&io_req->refcount, bnx2fc_cmd_release);
+}
+
+static int bnx2fc_post_io_req(struct bnx2fc_rport *tgt,
+			       struct bnx2fc_cmd *io_req)
+{
+	struct fcoe_task_ctx_entry *task;
+	struct fcoe_task_ctx_entry *task_page;
+	struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+	struct fcoe_port *port = tgt->port;
+	struct bnx2fc_hba *hba = port->priv;
+	struct fc_lport *lport = port->lport;
+	struct fcoe_dev_stats *stats;
+	int task_idx, index;
+	u16 xid;
+
+	/* Initialize rest of io_req fields */
+	io_req->cmd_type = BNX2FC_SCSI_CMD;
+	io_req->port = port;
+	io_req->tgt = tgt;
+	io_req->data_xfer_len = scsi_bufflen(sc_cmd);
+	sc_cmd->SCp.ptr = (char *)io_req;
+
+	stats = per_cpu_ptr(lport->dev_stats, get_cpu());
+	if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+		io_req->io_req_flags = BNX2FC_READ;
+		stats->InputRequests++;
+		stats->InputBytes += io_req->data_xfer_len;
+	} else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+		io_req->io_req_flags = BNX2FC_WRITE;
+		stats->OutputRequests++;
+		stats->OutputBytes += io_req->data_xfer_len;
+	} else {
+		io_req->io_req_flags = 0;
+		stats->ControlRequests++;
+	}
+	put_cpu();
+
+	xid = io_req->xid;
+
+	/* Build buffer descriptor list for firmware from sg list */
+	bnx2fc_build_bd_list_from_sg(io_req);
+
+	task_idx = xid / BNX2FC_TASKS_PER_PAGE;
+	index = xid % BNX2FC_TASKS_PER_PAGE;
+
+	/* Initialize task context for this IO request */
+	task_page = (struct fcoe_task_ctx_entry *) hba->task_ctx[task_idx];
+	task = &(task_page[index]);
+	bnx2fc_init_task(io_req, task);
+
+	spin_lock_bh(&tgt->tgt_lock);
+
+	if (tgt->flush_in_prog) {
+		printk(KERN_ERR PFX "Flush in progress..Host Busy\n");
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return -EAGAIN;
+	}
+
+	if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) {
+		printk(KERN_ERR PFX "Session not ready...post_io\n");
+		kref_put(&io_req->refcount, bnx2fc_cmd_release);
+		spin_unlock_bh(&tgt->tgt_lock);
+		return -EAGAIN;
+	}
+
+	/* Time IO req */
+	bnx2fc_cmd_timer_set(io_req, BNX2FC_IO_TIMEOUT);
+	/* Obtain free SQ entry */
+	bnx2fc_add_2_sq(tgt, xid);
+
+	/* Enqueue the io_req to active_cmd_queue */
+
+	io_req->on_active_queue = 1;
+	/* move io_req from pending_queue to active_queue */
+	list_add_tail(&io_req->link, &tgt->active_cmd_queue);
+
+	/* Ring doorbell */
+	bnx2fc_ring_doorbell(tgt);
+	spin_unlock_bh(&tgt->tgt_lock);
+	return 0;
+}

drivers/scsi/bnx2fc/bnx2fc_tgt.c

@@ -0,0 +1,844 @@
+/* bnx2fc_tgt.c: Broadcom NetXtreme II Linux FCoE offload driver.
+ * Handles operations such as session offload/upload etc, and manages
+ * session resources such as connection id and qp resources.
+ *
+ * Copyright (c) 2008 - 2010 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+static void bnx2fc_upld_timer(unsigned long data);
+static void bnx2fc_ofld_timer(unsigned long data);
+static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
+			   struct fcoe_port *port,
+			   struct fc_rport_priv *rdata);
+static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
+				struct bnx2fc_rport *tgt);
+static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
+			      struct bnx2fc_rport *tgt);
+static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
+			      struct bnx2fc_rport *tgt);
+static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id);
+
+static void bnx2fc_upld_timer(unsigned long data)
+{
+
+	struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
+
+	BNX2FC_TGT_DBG(tgt, "upld_timer - Upload compl not received!!\n");
+	/* fake upload completion */
+	clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+	set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+	wake_up_interruptible(&tgt->upld_wait);
+}
+
+static void bnx2fc_ofld_timer(unsigned long data)
+{
+
+	struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
+
+	BNX2FC_TGT_DBG(tgt, "entered bnx2fc_ofld_timer\n");
+	/* NOTE: This function should never be called, as
+	 * offload should never timeout
+	 */
+	/*
+	 * If the timer has expired, this session is dead
+	 * Clear offloaded flag and logout of this device.
+	 * Since OFFLOADED flag is cleared, this case
+	 * will be considered as offload error and the
+	 * port will be logged off, and conn_id, session
+	 * resources are freed up in bnx2fc_offload_session
+	 */
+	clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
+	set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+	wake_up_interruptible(&tgt->ofld_wait);
+}
+
+static void bnx2fc_offload_session(struct fcoe_port *port,
+					struct bnx2fc_rport *tgt,
+					struct fc_rport_priv *rdata)
+{
+	struct fc_lport *lport = rdata->local_port;
+	struct fc_rport *rport = rdata->rport;
+	struct bnx2fc_hba *hba = port->priv;
+	int rval;
+	int i = 0;
+
+	/* Initialize bnx2fc_rport */
+	/* NOTE: tgt is already bzero'd */
+	rval = bnx2fc_init_tgt(tgt, port, rdata);
+	if (rval) {
+		printk(KERN_ERR PFX "Failed to allocate conn id for "
+			"port_id (%6x)\n", rport->port_id);
+		goto ofld_err;
+	}
+
+	/* Allocate session resources */
+	rval = bnx2fc_alloc_session_resc(hba, tgt);
+	if (rval) {
+		printk(KERN_ERR PFX "Failed to allocate resources\n");
+		goto ofld_err;
+	}
+
+	/*
+	 * Initialize FCoE session offload process.
+	 * Upon completion of offload process add
+	 * rport to list of rports
+	 */
+retry_ofld:
+	clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
+	rval = bnx2fc_send_session_ofld_req(port, tgt);
+	if (rval) {
+		printk(KERN_ERR PFX "ofld_req failed\n");
+		goto ofld_err;
+	}
+
+	/*
+	 * wait for the session is offloaded and enabled. 3 Secs
+	 * should be ample time for this process to complete.
+	 */
+	setup_timer(&tgt->ofld_timer, bnx2fc_ofld_timer, (unsigned long)tgt);
+	mod_timer(&tgt->ofld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+	wait_event_interruptible(tgt->ofld_wait,
+				 (test_bit(
+				  BNX2FC_FLAG_OFLD_REQ_CMPL,
+				  &tgt->flags)));
+	if (signal_pending(current))
+		flush_signals(current);
+
+	del_timer_sync(&tgt->ofld_timer);
+
+	if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
+		if (test_and_clear_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE,
+				       &tgt->flags)) {
+			BNX2FC_TGT_DBG(tgt, "ctx_alloc_failure, "
+				"retry ofld..%d\n", i++);
+			msleep_interruptible(1000);
+			if (i > 3) {
+				i = 0;
+				goto ofld_err;
+			}
+			goto retry_ofld;
+		}
+		goto ofld_err;
+	}
+	if (bnx2fc_map_doorbell(tgt)) {
+		printk(KERN_ERR PFX "map doorbell failed - no mem\n");
+		/* upload will take care of cleaning up sess resc */
+		lport->tt.rport_logoff(rdata);
+	}
+	return;
+
+ofld_err:
+	/* couldn't offload the session. log off from this rport */
+	BNX2FC_TGT_DBG(tgt, "bnx2fc_offload_session - offload error\n");
+	lport->tt.rport_logoff(rdata);
+	/* Free session resources */
+	bnx2fc_free_session_resc(hba, tgt);
+	if (tgt->fcoe_conn_id != -1)
+		bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+}
+
+void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
+{
+	struct bnx2fc_cmd *io_req;
+	struct list_head *list;
+	struct list_head *tmp;
+	int rc;
+	int i = 0;
+	BNX2FC_TGT_DBG(tgt, "Entered flush_active_ios - %d\n",
+		       tgt->num_active_ios.counter);
+
+	spin_lock_bh(&tgt->tgt_lock);
+	tgt->flush_in_prog = 1;
+
+	list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
+		i++;
+		io_req = (struct bnx2fc_cmd *)list;
+		list_del_init(&io_req->link);
+		io_req->on_active_queue = 0;
+		BNX2FC_IO_DBG(io_req, "cmd_queue cleanup\n");
+
+		if (cancel_delayed_work(&io_req->timeout_work)) {
+			if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
+						&io_req->req_flags)) {
+				/* Handle eh_abort timeout */
+				BNX2FC_IO_DBG(io_req, "eh_abort for IO "
+					      "cleaned up\n");
+				complete(&io_req->tm_done);
+			}
+			kref_put(&io_req->refcount,
+				 bnx2fc_cmd_release); /* drop timer hold */
+		}
+
+		set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags);
+		set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
+		rc = bnx2fc_initiate_cleanup(io_req);
+		BUG_ON(rc);
+	}
+
+	list_for_each_safe(list, tmp, &tgt->els_queue) {
+		i++;
+		io_req = (struct bnx2fc_cmd *)list;
+		list_del_init(&io_req->link);
+		io_req->on_active_queue = 0;
+
+		BNX2FC_IO_DBG(io_req, "els_queue cleanup\n");
+
+		if (cancel_delayed_work(&io_req->timeout_work))
+			kref_put(&io_req->refcount,
+				 bnx2fc_cmd_release); /* drop timer hold */
+
+		if ((io_req->cb_func) && (io_req->cb_arg)) {
+			io_req->cb_func(io_req->cb_arg);
+			io_req->cb_arg = NULL;
+		}
+
+		rc = bnx2fc_initiate_cleanup(io_req);
+		BUG_ON(rc);
+	}
+
+	list_for_each_safe(list, tmp, &tgt->io_retire_queue) {
+		i++;
+		io_req = (struct bnx2fc_cmd *)list;
+		list_del_init(&io_req->link);
+
+		BNX2FC_IO_DBG(io_req, "retire_queue flush\n");
+
+		if (cancel_delayed_work(&io_req->timeout_work))
+			kref_put(&io_req->refcount, bnx2fc_cmd_release);
+
+		clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
+	}
+
+	BNX2FC_TGT_DBG(tgt, "IOs flushed = %d\n", i);
+	i = 0;
+	spin_unlock_bh(&tgt->tgt_lock);
+	/* wait for active_ios to go to 0 */
+	while ((tgt->num_active_ios.counter != 0) && (i++ < BNX2FC_WAIT_CNT))
+		msleep(25);
+	if (tgt->num_active_ios.counter != 0)
+		printk(KERN_ERR PFX "CLEANUP on port 0x%x:"
+				    " active_ios = %d\n",
+			tgt->rdata->ids.port_id, tgt->num_active_ios.counter);
+	spin_lock_bh(&tgt->tgt_lock);
+	tgt->flush_in_prog = 0;
+	spin_unlock_bh(&tgt->tgt_lock);
+}
+
+static void bnx2fc_upload_session(struct fcoe_port *port,
+					struct bnx2fc_rport *tgt)
+{
+	struct bnx2fc_hba *hba = port->priv;
+
+	BNX2FC_TGT_DBG(tgt, "upload_session: active_ios = %d\n",
+		tgt->num_active_ios.counter);
+
+	/*
+	 * Called with hba->hba_mutex held.
+	 * This is a blocking call
+	 */
+	clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+	bnx2fc_send_session_disable_req(port, tgt);
+
+	/*
+	 * wait for upload to complete. 3 Secs
+	 * should be sufficient time for this process to complete.
+	 */
+	setup_timer(&tgt->upld_timer, bnx2fc_upld_timer, (unsigned long)tgt);
+	mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+	BNX2FC_TGT_DBG(tgt, "waiting for disable compl\n");
+	wait_event_interruptible(tgt->upld_wait,
+				 (test_bit(
+				  BNX2FC_FLAG_UPLD_REQ_COMPL,
+				  &tgt->flags)));
+
+	if (signal_pending(current))
+		flush_signals(current);
+
+	del_timer_sync(&tgt->upld_timer);
+
+	/*
+	 * traverse thru the active_q and tmf_q and cleanup
+	 * IOs in these lists
+	 */
+	BNX2FC_TGT_DBG(tgt, "flush/upload - disable wait flags = 0x%lx\n",
+		       tgt->flags);
+	bnx2fc_flush_active_ios(tgt);
+
+	/* Issue destroy KWQE */
+	if (test_bit(BNX2FC_FLAG_DISABLED, &tgt->flags)) {
+		BNX2FC_TGT_DBG(tgt, "send destroy req\n");
+		clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
+		bnx2fc_send_session_destroy_req(hba, tgt);
+
+		/* wait for destroy to complete */
+		setup_timer(&tgt->upld_timer,
+			    bnx2fc_upld_timer, (unsigned long)tgt);
+		mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
+
+		wait_event_interruptible(tgt->upld_wait,
+					 (test_bit(
+					  BNX2FC_FLAG_UPLD_REQ_COMPL,
+					  &tgt->flags)));
+
+		if (!(test_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags)))
+			printk(KERN_ERR PFX "ERROR!! destroy timed out\n");
+
+		BNX2FC_TGT_DBG(tgt, "destroy wait complete flags = 0x%lx\n",
+			tgt->flags);
+		if (signal_pending(current))
+			flush_signals(current);
+
+		del_timer_sync(&tgt->upld_timer);
+
+	} else
+		printk(KERN_ERR PFX "ERROR!! DISABLE req timed out, destroy"
+				" not sent to FW\n");
+
+	/* Free session resources */
+	spin_lock_bh(&tgt->cq_lock);
+	bnx2fc_free_session_resc(hba, tgt);
+	bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+	spin_unlock_bh(&tgt->cq_lock);
+}
+
+static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
+			   struct fcoe_port *port,
+			   struct fc_rport_priv *rdata)
+{
+
+	struct fc_rport *rport = rdata->rport;
+	struct bnx2fc_hba *hba = port->priv;
+
+	tgt->rport = rport;
+	tgt->rdata = rdata;
+	tgt->port = port;
+
+	if (hba->num_ofld_sess >= BNX2FC_NUM_MAX_SESS) {
+		BNX2FC_TGT_DBG(tgt, "exceeded max sessions. logoff this tgt\n");
+		tgt->fcoe_conn_id = -1;
+		return -1;
+	}
+
+	tgt->fcoe_conn_id = bnx2fc_alloc_conn_id(hba, tgt);
+	if (tgt->fcoe_conn_id == -1)
+		return -1;
+
+	BNX2FC_TGT_DBG(tgt, "init_tgt - conn_id = 0x%x\n", tgt->fcoe_conn_id);
+
+	tgt->max_sqes = BNX2FC_SQ_WQES_MAX;
+	tgt->max_rqes = BNX2FC_RQ_WQES_MAX;
+	tgt->max_cqes = BNX2FC_CQ_WQES_MAX;
+
+	/* Initialize the toggle bit */
+	tgt->sq_curr_toggle_bit = 1;
+	tgt->cq_curr_toggle_bit = 1;
+	tgt->sq_prod_idx = 0;
+	tgt->cq_cons_idx = 0;
+	tgt->rq_prod_idx = 0x8000;
+	tgt->rq_cons_idx = 0;
+	atomic_set(&tgt->num_active_ios, 0);
+
+	tgt->work_time_slice = 2;
+
+	spin_lock_init(&tgt->tgt_lock);
+	spin_lock_init(&tgt->cq_lock);
+
+	/* Initialize active_cmd_queue list */
+	INIT_LIST_HEAD(&tgt->active_cmd_queue);
+
+	/* Initialize IO retire queue */
+	INIT_LIST_HEAD(&tgt->io_retire_queue);
+
+	INIT_LIST_HEAD(&tgt->els_queue);
+
+	/* Initialize active_tm_queue list */
+	INIT_LIST_HEAD(&tgt->active_tm_queue);
+
+	init_waitqueue_head(&tgt->ofld_wait);
+	init_waitqueue_head(&tgt->upld_wait);
+
+	return 0;
+}
+
+/**
+ * This event_callback is called after successful completion of libfc
+ * initiated target login. bnx2fc can proceed with initiating the session
+ * establishment.
+ */
+void bnx2fc_rport_event_handler(struct fc_lport *lport,
+				struct fc_rport_priv *rdata,
+				enum fc_rport_event event)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	struct bnx2fc_hba *hba = port->priv;
+	struct fc_rport *rport = rdata->rport;
+	struct fc_rport_libfc_priv *rp;
+	struct bnx2fc_rport *tgt;
+	u32 port_id;
+
+	BNX2FC_HBA_DBG(lport, "rport_event_hdlr: event = %d, port_id = 0x%x\n",
+		event, rdata->ids.port_id);
+	switch (event) {
+	case RPORT_EV_READY:
+		if (!rport) {
+			printk(KERN_ALERT PFX "rport is NULL: ERROR!\n");
+			break;
+		}
+
+		rp = rport->dd_data;
+		if (rport->port_id == FC_FID_DIR_SERV) {
+			/*
+			 * bnx2fc_rport structure doesnt exist for
+			 * directory server.
+			 * We should not come here, as lport will
+			 * take care of fabric login
+			 */
+			printk(KERN_ALERT PFX "%x - rport_event_handler ERROR\n",
+				rdata->ids.port_id);
+			break;
+		}
+
+		if (rdata->spp_type != FC_TYPE_FCP) {
+			BNX2FC_HBA_DBG(lport, "not FCP type target."
+				   " not offloading\n");
+			break;
+		}
+		if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
+			BNX2FC_HBA_DBG(lport, "not FCP_TARGET"
+				   " not offloading\n");
+			break;
+		}
+
+		/*
+		 * Offlaod process is protected with hba mutex.
+		 * Use the same mutex_lock for upload process too
+		 */
+		mutex_lock(&hba->hba_mutex);
+		tgt = (struct bnx2fc_rport *)&rp[1];
+
+		/* This can happen when ADISC finds the same target */
+		if (test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags)) {
+			BNX2FC_TGT_DBG(tgt, "already offloaded\n");
+			mutex_unlock(&hba->hba_mutex);
+			return;
+		}
+
+		/*
+		 * Offload the session. This is a blocking call, and will
+		 * wait until the session is offloaded.
+		 */
+		bnx2fc_offload_session(port, tgt, rdata);
+
+		BNX2FC_TGT_DBG(tgt, "OFFLOAD num_ofld_sess = %d\n",
+			hba->num_ofld_sess);
+
+		if (test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags)) {
+			/*
+			 * Session is offloaded and enabled. Map
+			 * doorbell register for this target
+			 */
+			BNX2FC_TGT_DBG(tgt, "sess offloaded\n");
+			/* This counter is protected with hba mutex */
+			hba->num_ofld_sess++;
+
+			set_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+		} else {
+			/*
+			 * Offload or enable would have failed.
+			 * In offload/enable completion path, the
+			 * rport would have already been removed
+			 */
+			BNX2FC_TGT_DBG(tgt, "Port is being logged off as "
+				   "offloaded flag not set\n");
+		}
+		mutex_unlock(&hba->hba_mutex);
+		break;
+	case RPORT_EV_LOGO:
+	case RPORT_EV_FAILED:
+	case RPORT_EV_STOP:
+		port_id = rdata->ids.port_id;
+		if (port_id == FC_FID_DIR_SERV)
+			break;
+
+		if (!rport) {
+			printk(KERN_ALERT PFX "%x - rport not created Yet!!\n",
+				port_id);
+			break;
+		}
+		rp = rport->dd_data;
+		mutex_lock(&hba->hba_mutex);
+		/*
+		 * Perform session upload. Note that rdata->peers is already
+		 * removed from disc->rports list before we get this event.
+		 */
+		tgt = (struct bnx2fc_rport *)&rp[1];
+
+		if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
+			mutex_unlock(&hba->hba_mutex);
+			break;
+		}
+		clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
+
+		bnx2fc_upload_session(port, tgt);
+		hba->num_ofld_sess--;
+		BNX2FC_TGT_DBG(tgt, "UPLOAD num_ofld_sess = %d\n",
+			hba->num_ofld_sess);
+		/*
+		 * Try to wake up the linkdown wait thread. If num_ofld_sess
+		 * is 0, the waiting therad wakes up
+		 */
+		if ((hba->wait_for_link_down) &&
+		    (hba->num_ofld_sess == 0)) {
+			wake_up_interruptible(&hba->shutdown_wait);
+		}
+		if (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags)) {
+			printk(KERN_ERR PFX "Relogin to the tgt\n");
+			mutex_lock(&lport->disc.disc_mutex);
+			lport->tt.rport_login(rdata);
+			mutex_unlock(&lport->disc.disc_mutex);
+		}
+		mutex_unlock(&hba->hba_mutex);
+
+		break;
+
+	case RPORT_EV_NONE:
+		break;
+	}
+}
+
+/**
+ * bnx2fc_tgt_lookup() - Lookup a bnx2fc_rport by port_id
+ *
+ * @port:  fcoe_port struct to lookup the target port on
+ * @port_id: The remote port ID to look up
+ */
+struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
+					     u32 port_id)
+{
+	struct bnx2fc_hba *hba = port->priv;
+	struct bnx2fc_rport *tgt;
+	struct fc_rport_priv *rdata;
+	int i;
+
+	for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+		tgt = hba->tgt_ofld_list[i];
+		if ((tgt) && (tgt->port == port)) {
+			rdata = tgt->rdata;
+			if (rdata->ids.port_id == port_id) {
+				if (rdata->rp_state != RPORT_ST_DELETE) {
+					BNX2FC_TGT_DBG(tgt, "rport "
+						"obtained\n");
+					return tgt;
+				} else {
+					printk(KERN_ERR PFX "rport 0x%x "
+						"is in DELETED state\n",
+						rdata->ids.port_id);
+					return NULL;
+				}
+			}
+		}
+	}
+	return NULL;
+}
+
+
+/**
+ * bnx2fc_alloc_conn_id - allocates FCOE Connection id
+ *
+ * @hba:	pointer to adapter structure
+ * @tgt:	pointer to bnx2fc_rport structure
+ */
+static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
+				struct bnx2fc_rport *tgt)
+{
+	u32 conn_id, next;
+
+	/* called with hba mutex held */
+
+	/*
+	 * tgt_ofld_list access is synchronized using
+	 * both hba mutex and hba lock. Atleast hba mutex or
+	 * hba lock needs to be held for read access.
+	 */
+
+	spin_lock_bh(&hba->hba_lock);
+	next = hba->next_conn_id;
+	conn_id = hba->next_conn_id++;
+	if (hba->next_conn_id == BNX2FC_NUM_MAX_SESS)
+		hba->next_conn_id = 0;
+
+	while (hba->tgt_ofld_list[conn_id] != NULL) {
+		conn_id++;
+		if (conn_id == BNX2FC_NUM_MAX_SESS)
+			conn_id = 0;
+
+		if (conn_id == next) {
+			/* No free conn_ids are available */
+			spin_unlock_bh(&hba->hba_lock);
+			return -1;
+		}
+	}
+	hba->tgt_ofld_list[conn_id] = tgt;
+	tgt->fcoe_conn_id = conn_id;
+	spin_unlock_bh(&hba->hba_lock);
+	return conn_id;
+}
+
+static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id)
+{
+	/* called with hba mutex held */
+	spin_lock_bh(&hba->hba_lock);
+	hba->tgt_ofld_list[conn_id] = NULL;
+	hba->next_conn_id = conn_id;
+	spin_unlock_bh(&hba->hba_lock);
+}
+
+/**
+ *bnx2fc_alloc_session_resc - Allocate qp resources for the session
+ *
+ */
+static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
+					struct bnx2fc_rport *tgt)
+{
+	dma_addr_t page;
+	int num_pages;
+	u32 *pbl;
+
+	/* Allocate and map SQ */
+	tgt->sq_mem_size = tgt->max_sqes * BNX2FC_SQ_WQE_SIZE;
+	tgt->sq_mem_size = (tgt->sq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+	tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+				     &tgt->sq_dma, GFP_KERNEL);
+	if (!tgt->sq) {
+		printk(KERN_ALERT PFX "unable to allocate SQ memory %d\n",
+			tgt->sq_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->sq, 0, tgt->sq_mem_size);
+
+	/* Allocate and map CQ */
+	tgt->cq_mem_size = tgt->max_cqes * BNX2FC_CQ_WQE_SIZE;
+	tgt->cq_mem_size = (tgt->cq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+	tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+				     &tgt->cq_dma, GFP_KERNEL);
+	if (!tgt->cq) {
+		printk(KERN_ALERT PFX "unable to allocate CQ memory %d\n",
+			tgt->cq_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->cq, 0, tgt->cq_mem_size);
+
+	/* Allocate and map RQ and RQ PBL */
+	tgt->rq_mem_size = tgt->max_rqes * BNX2FC_RQ_WQE_SIZE;
+	tgt->rq_mem_size = (tgt->rq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+	tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+					&tgt->rq_dma, GFP_KERNEL);
+	if (!tgt->rq) {
+		printk(KERN_ALERT PFX "unable to allocate RQ memory %d\n",
+			tgt->rq_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->rq, 0, tgt->rq_mem_size);
+
+	tgt->rq_pbl_size = (tgt->rq_mem_size / PAGE_SIZE) * sizeof(void *);
+	tgt->rq_pbl_size = (tgt->rq_pbl_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+	tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+					 &tgt->rq_pbl_dma, GFP_KERNEL);
+	if (!tgt->rq_pbl) {
+		printk(KERN_ALERT PFX "unable to allocate RQ PBL %d\n",
+			tgt->rq_pbl_size);
+		goto mem_alloc_failure;
+	}
+
+	memset(tgt->rq_pbl, 0, tgt->rq_pbl_size);
+	num_pages = tgt->rq_mem_size / PAGE_SIZE;
+	page = tgt->rq_dma;
+	pbl = (u32 *)tgt->rq_pbl;
+
+	while (num_pages--) {
+		*pbl = (u32)page;
+		pbl++;
+		*pbl = (u32)((u64)page >> 32);
+		pbl++;
+		page += PAGE_SIZE;
+	}
+
+	/* Allocate and map XFERQ */
+	tgt->xferq_mem_size = tgt->max_sqes * BNX2FC_XFERQ_WQE_SIZE;
+	tgt->xferq_mem_size = (tgt->xferq_mem_size + (PAGE_SIZE - 1)) &
+			       PAGE_MASK;
+
+	tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
+					&tgt->xferq_dma, GFP_KERNEL);
+	if (!tgt->xferq) {
+		printk(KERN_ALERT PFX "unable to allocate XFERQ %d\n",
+			tgt->xferq_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->xferq, 0, tgt->xferq_mem_size);
+
+	/* Allocate and map CONFQ & CONFQ PBL */
+	tgt->confq_mem_size = tgt->max_sqes * BNX2FC_CONFQ_WQE_SIZE;
+	tgt->confq_mem_size = (tgt->confq_mem_size + (PAGE_SIZE - 1)) &
+			       PAGE_MASK;
+
+	tgt->confq = dma_alloc_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
+					&tgt->confq_dma, GFP_KERNEL);
+	if (!tgt->confq) {
+		printk(KERN_ALERT PFX "unable to allocate CONFQ %d\n",
+			tgt->confq_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->confq, 0, tgt->confq_mem_size);
+
+	tgt->confq_pbl_size =
+		(tgt->confq_mem_size / PAGE_SIZE) * sizeof(void *);
+	tgt->confq_pbl_size =
+		(tgt->confq_pbl_size + (PAGE_SIZE - 1)) & PAGE_MASK;
+
+	tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
+					    tgt->confq_pbl_size,
+					    &tgt->confq_pbl_dma, GFP_KERNEL);
+	if (!tgt->confq_pbl) {
+		printk(KERN_ALERT PFX "unable to allocate CONFQ PBL %d\n",
+			tgt->confq_pbl_size);
+		goto mem_alloc_failure;
+	}
+
+	memset(tgt->confq_pbl, 0, tgt->confq_pbl_size);
+	num_pages = tgt->confq_mem_size / PAGE_SIZE;
+	page = tgt->confq_dma;
+	pbl = (u32 *)tgt->confq_pbl;
+
+	while (num_pages--) {
+		*pbl = (u32)page;
+		pbl++;
+		*pbl = (u32)((u64)page >> 32);
+		pbl++;
+		page += PAGE_SIZE;
+	}
+
+	/* Allocate and map ConnDB */
+	tgt->conn_db_mem_size = sizeof(struct fcoe_conn_db);
+
+	tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
+					  tgt->conn_db_mem_size,
+					  &tgt->conn_db_dma, GFP_KERNEL);
+	if (!tgt->conn_db) {
+		printk(KERN_ALERT PFX "unable to allocate conn_db %d\n",
+						tgt->conn_db_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->conn_db, 0, tgt->conn_db_mem_size);
+
+
+	/* Allocate and map LCQ */
+	tgt->lcq_mem_size = (tgt->max_sqes + 8) * BNX2FC_SQ_WQE_SIZE;
+	tgt->lcq_mem_size = (tgt->lcq_mem_size + (PAGE_SIZE - 1)) &
+			     PAGE_MASK;
+
+	tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+				      &tgt->lcq_dma, GFP_KERNEL);
+
+	if (!tgt->lcq) {
+		printk(KERN_ALERT PFX "unable to allocate lcq %d\n",
+		       tgt->lcq_mem_size);
+		goto mem_alloc_failure;
+	}
+	memset(tgt->lcq, 0, tgt->lcq_mem_size);
+
+	/* Arm CQ */
+	tgt->conn_db->cq_arm.lo = -1;
+	tgt->conn_db->rq_prod = 0x8000;
+
+	return 0;
+
+mem_alloc_failure:
+	bnx2fc_free_session_resc(hba, tgt);
+	bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
+	return -ENOMEM;
+}
+
+/**
+ * bnx2i_free_session_resc - free qp resources for the session
+ *
+ * @hba:	adapter structure pointer
+ * @tgt:	bnx2fc_rport structure pointer
+ *
+ * Free QP resources - SQ/RQ/CQ/XFERQ memory and PBL
+ */
+static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
+						struct bnx2fc_rport *tgt)
+{
+	BNX2FC_TGT_DBG(tgt, "Freeing up session resources\n");
+
+	if (tgt->ctx_base) {
+		iounmap(tgt->ctx_base);
+		tgt->ctx_base = NULL;
+	}
+	/* Free LCQ */
+	if (tgt->lcq) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
+				    tgt->lcq, tgt->lcq_dma);
+		tgt->lcq = NULL;
+	}
+	/* Free connDB */
+	if (tgt->conn_db) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->conn_db_mem_size,
+				    tgt->conn_db, tgt->conn_db_dma);
+		tgt->conn_db = NULL;
+	}
+	/* Free confq  and confq pbl */
+	if (tgt->confq_pbl) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->confq_pbl_size,
+				    tgt->confq_pbl, tgt->confq_pbl_dma);
+		tgt->confq_pbl = NULL;
+	}
+	if (tgt->confq) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
+				    tgt->confq, tgt->confq_dma);
+		tgt->confq = NULL;
+	}
+	/* Free XFERQ */
+	if (tgt->xferq) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
+				    tgt->xferq, tgt->xferq_dma);
+		tgt->xferq = NULL;
+	}
+	/* Free RQ PBL and RQ */
+	if (tgt->rq_pbl) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
+				    tgt->rq_pbl, tgt->rq_pbl_dma);
+		tgt->rq_pbl = NULL;
+	}
+	if (tgt->rq) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
+				    tgt->rq, tgt->rq_dma);
+		tgt->rq = NULL;
+	}
+	/* Free CQ */
+	if (tgt->cq) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
+				    tgt->cq, tgt->cq_dma);
+		tgt->cq = NULL;
+	}
+	/* Free SQ */
+	if (tgt->sq) {
+		dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
+				    tgt->sq, tgt->sq_dma);
+		tgt->sq = NULL;
+	}
+}

drivers/scsi/bnx2i/bnx2i.h

@@ -360,7 +360,7 @@ struct bnx2i_hba {
 		#define ADAPTER_STATE_LINK_DOWN		2
 		#define ADAPTER_STATE_INIT_FAILED	31
 	unsigned int mtu_supported;
-		#define BNX2I_MAX_MTU_SUPPORTED		1500
+		#define BNX2I_MAX_MTU_SUPPORTED		9000
 
 	struct Scsi_Host *shost;
 
@@ -751,6 +751,8 @@ extern int bnx2i_send_iscsi_login(struct bnx2i_conn *conn,
 				  struct iscsi_task *mtask);
 extern int bnx2i_send_iscsi_tmf(struct bnx2i_conn *conn,
 				  struct iscsi_task *mtask);
+extern int bnx2i_send_iscsi_text(struct bnx2i_conn *conn,
+				 struct iscsi_task *mtask);
 extern int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *conn,
 				    struct bnx2i_cmd *cmnd);
 extern int bnx2i_send_iscsi_nopout(struct bnx2i_conn *conn,

drivers/scsi/bnx2i/bnx2i_hwi.c

@@ -444,6 +444,56 @@ int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn,
 	return 0;
 }
 
+/**
+ * bnx2i_send_iscsi_text - post iSCSI text WQE to hardware
+ * @conn:	iscsi connection
+ * @mtask:	driver command structure which is requesting
+ *		a WQE to sent to chip for further processing
+ *
+ * prepare and post an iSCSI Text request WQE to CNIC firmware
+ */
+int bnx2i_send_iscsi_text(struct bnx2i_conn *bnx2i_conn,
+			  struct iscsi_task *mtask)
+{
+	struct bnx2i_cmd *bnx2i_cmd;
+	struct bnx2i_text_request *text_wqe;
+	struct iscsi_text *text_hdr;
+	u32 dword;
+
+	bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data;
+	text_hdr = (struct iscsi_text *)mtask->hdr;
+	text_wqe = (struct bnx2i_text_request *) bnx2i_conn->ep->qp.sq_prod_qe;
+
+	memset(text_wqe, 0, sizeof(struct bnx2i_text_request));
+
+	text_wqe->op_code = text_hdr->opcode;
+	text_wqe->op_attr = text_hdr->flags;
+	text_wqe->data_length = ntoh24(text_hdr->dlength);
+	text_wqe->itt = mtask->itt |
+		(ISCSI_TASK_TYPE_MPATH << ISCSI_TEXT_REQUEST_TYPE_SHIFT);
+	text_wqe->ttt = be32_to_cpu(text_hdr->ttt);
+
+	text_wqe->cmd_sn = be32_to_cpu(text_hdr->cmdsn);
+
+	text_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma;
+	text_wqe->resp_bd_list_addr_hi =
+			(u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32);
+
+	dword = ((1 << ISCSI_TEXT_REQUEST_NUM_RESP_BDS_SHIFT) |
+		 (bnx2i_conn->gen_pdu.resp_buf_size <<
+		  ISCSI_TEXT_REQUEST_RESP_BUFFER_LENGTH_SHIFT));
+	text_wqe->resp_buffer = dword;
+	text_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma;
+	text_wqe->bd_list_addr_hi =
+			(u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32);
+	text_wqe->num_bds = 1;
+	text_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */
+
+	bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1);
+	return 0;
+}
+
+
 /**
  * bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware
  * @conn:	iscsi connection
@@ -490,15 +540,18 @@ int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn,
 	bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data;
 	nopout_hdr = (struct iscsi_nopout *)task->hdr;
 	nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe;
+
+	memset(nopout_wqe, 0x00, sizeof(struct bnx2i_nop_out_request));
+
 	nopout_wqe->op_code = nopout_hdr->opcode;
 	nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL;
 	memcpy(nopout_wqe->lun, nopout_hdr->lun, 8);
 
 	if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
-		u32 tmp = nopout_hdr->lun[0];
+		u32 tmp = nopout_wqe->lun[0];
 		/* 57710 requires LUN field to be swapped */
-		nopout_hdr->lun[0] = nopout_hdr->lun[1];
-		nopout_hdr->lun[1] = tmp;
+		nopout_wqe->lun[0] = nopout_wqe->lun[1];
+		nopout_wqe->lun[1] = tmp;
 	}
 
 	nopout_wqe->itt = ((u16)task->itt |
@@ -1425,6 +1478,68 @@ done:
 	return 0;
 }
 
+
+/**
+ * bnx2i_process_text_resp - this function handles iscsi text response
+ * @session:	iscsi session pointer
+ * @bnx2i_conn:	iscsi connection pointer
+ * @cqe:	pointer to newly DMA'ed CQE entry for processing
+ *
+ * process iSCSI Text Response CQE&  complete it to open-iscsi user daemon
+ */
+static int bnx2i_process_text_resp(struct iscsi_session *session,
+				   struct bnx2i_conn *bnx2i_conn,
+				   struct cqe *cqe)
+{
+	struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
+	struct iscsi_task *task;
+	struct bnx2i_text_response *text;
+	struct iscsi_text_rsp *resp_hdr;
+	int pld_len;
+	int pad_len;
+
+	text = (struct bnx2i_text_response *) cqe;
+	spin_lock(&session->lock);
+	task = iscsi_itt_to_task(conn, text->itt & ISCSI_LOGIN_RESPONSE_INDEX);
+	if (!task)
+		goto done;
+
+	resp_hdr = (struct iscsi_text_rsp *)&bnx2i_conn->gen_pdu.resp_hdr;
+	memset(resp_hdr, 0, sizeof(struct iscsi_hdr));
+	resp_hdr->opcode = text->op_code;
+	resp_hdr->flags = text->response_flags;
+	resp_hdr->hlength = 0;
+
+	hton24(resp_hdr->dlength, text->data_length);
+	resp_hdr->itt = task->hdr->itt;
+	resp_hdr->ttt = cpu_to_be32(text->ttt);
+	resp_hdr->statsn = task->hdr->exp_statsn;
+	resp_hdr->exp_cmdsn = cpu_to_be32(text->exp_cmd_sn);
+	resp_hdr->max_cmdsn = cpu_to_be32(text->max_cmd_sn);
+	pld_len = text->data_length;
+	bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf +
+					  pld_len;
+	pad_len = 0;
+	if (pld_len & 0x3)
+		pad_len = 4 - (pld_len % 4);
+
+	if (pad_len) {
+		int i = 0;
+		for (i = 0; i < pad_len; i++) {
+			bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0;
+			bnx2i_conn->gen_pdu.resp_wr_ptr++;
+		}
+	}
+	__iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr,
+			     bnx2i_conn->gen_pdu.resp_buf,
+			     bnx2i_conn->gen_pdu.resp_wr_ptr -
+			     bnx2i_conn->gen_pdu.resp_buf);
+done:
+	spin_unlock(&session->lock);
+	return 0;
+}
+
+
 /**
  * bnx2i_process_tmf_resp - this function handles iscsi TMF response
  * @session:		iscsi session pointer
@@ -1766,6 +1881,10 @@ static void bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
 			bnx2i_process_tmf_resp(session, bnx2i_conn,
 					       qp->cq_cons_qe);
 			break;
+		case ISCSI_OP_TEXT_RSP:
+			bnx2i_process_text_resp(session, bnx2i_conn,
+						qp->cq_cons_qe);
+			break;
 		case ISCSI_OP_LOGOUT_RSP:
 			bnx2i_process_logout_resp(session, bnx2i_conn,
 						  qp->cq_cons_qe);

drivers/scsi/bnx2i/bnx2i_init.c

@@ -18,8 +18,8 @@ static struct list_head adapter_list = LIST_HEAD_INIT(adapter_list);
 static u32 adapter_count;
 
 #define DRV_MODULE_NAME		"bnx2i"
-#define DRV_MODULE_VERSION	"2.6.2.2"
-#define DRV_MODULE_RELDATE	"Nov 23, 2010"
+#define DRV_MODULE_VERSION	"2.6.2.3"
+#define DRV_MODULE_RELDATE	"Dec 31, 2010"
 
 static char version[] __devinitdata =
 		"Broadcom NetXtreme II iSCSI Driver " DRV_MODULE_NAME \
@@ -29,7 +29,7 @@ static char version[] __devinitdata =
 MODULE_AUTHOR("Anil Veerabhadrappa <anilgv@broadcom.com> and "
 	      "Eddie Wai <eddie.wai@broadcom.com>");
 
-MODULE_DESCRIPTION("Broadcom NetXtreme II BCM5706/5708/5709/57710/57711"
+MODULE_DESCRIPTION("Broadcom NetXtreme II BCM5706/5708/5709/57710/57711/57712"
 		   " iSCSI Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_MODULE_VERSION);
@@ -88,9 +88,11 @@ void bnx2i_identify_device(struct bnx2i_hba *hba)
 	    (hba->pci_did == PCI_DEVICE_ID_NX2_5709S)) {
 		set_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type);
 		hba->mail_queue_access = BNX2I_MQ_BIN_MODE;
-	} else if (hba->pci_did == PCI_DEVICE_ID_NX2_57710 ||
-		   hba->pci_did == PCI_DEVICE_ID_NX2_57711 ||
-		   hba->pci_did == PCI_DEVICE_ID_NX2_57711E)
+	} else if (hba->pci_did == PCI_DEVICE_ID_NX2_57710  ||
+		   hba->pci_did == PCI_DEVICE_ID_NX2_57711  ||
+		   hba->pci_did == PCI_DEVICE_ID_NX2_57711E ||
+		   hba->pci_did == PCI_DEVICE_ID_NX2_57712  ||
+		   hba->pci_did == PCI_DEVICE_ID_NX2_57712E)
 		set_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type);
 	else
 		printk(KERN_ALERT "bnx2i: unknown device, 0x%x\n",
@@ -161,6 +163,21 @@ void bnx2i_start(void *handle)
 	struct bnx2i_hba *hba = handle;
 	int i = HZ;
 
+	if (!hba->cnic->max_iscsi_conn) {
+		printk(KERN_ALERT "bnx2i: dev %s does not support "
+			"iSCSI\n", hba->netdev->name);
+
+		if (test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic)) {
+			mutex_lock(&bnx2i_dev_lock);
+			list_del_init(&hba->link);
+			adapter_count--;
+			hba->cnic->unregister_device(hba->cnic, CNIC_ULP_ISCSI);
+			clear_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic);
+			mutex_unlock(&bnx2i_dev_lock);
+			bnx2i_free_hba(hba);
+		}
+		return;
+	}
 	bnx2i_send_fw_iscsi_init_msg(hba);
 	while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
 		msleep(BNX2I_INIT_POLL_TIME);

drivers/scsi/bnx2i/bnx2i_iscsi.c

@@ -1092,6 +1092,9 @@ static int bnx2i_iscsi_send_generic_request(struct iscsi_task *task)
 	case ISCSI_OP_SCSI_TMFUNC:
 		rc = bnx2i_send_iscsi_tmf(bnx2i_conn, task);
 		break;
+	case ISCSI_OP_TEXT:
+		rc = bnx2i_send_iscsi_text(bnx2i_conn, task);
+		break;
 	default:
 		iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data,
 				  "send_gen: unsupported op 0x%x\n",
@@ -1455,42 +1458,40 @@ static void bnx2i_conn_destroy(struct iscsi_cls_conn *cls_conn)
 
 
 /**
- * bnx2i_conn_get_param - return iscsi connection parameter to caller
- * @cls_conn:	pointer to iscsi cls conn
+ * bnx2i_ep_get_param - return iscsi ep parameter to caller
+ * @ep:		pointer to iscsi endpoint
  * @param:	parameter type identifier
  * @buf: 	buffer pointer
  *
- * returns iSCSI connection parameters
+ * returns iSCSI ep parameters
  */
-static int bnx2i_conn_get_param(struct iscsi_cls_conn *cls_conn,
-				enum iscsi_param param, char *buf)
+static int bnx2i_ep_get_param(struct iscsi_endpoint *ep,
+			      enum iscsi_param param, char *buf)
 {
-	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct bnx2i_conn *bnx2i_conn = conn->dd_data;
-	int len = 0;
+	struct bnx2i_endpoint *bnx2i_ep = ep->dd_data;
+	struct bnx2i_hba *hba = bnx2i_ep->hba;
+	int len = -ENOTCONN;
 
-	if (!(bnx2i_conn && bnx2i_conn->ep && bnx2i_conn->ep->hba))
-		goto out;
+	if (!hba)
+		return -ENOTCONN;
 
 	switch (param) {
 	case ISCSI_PARAM_CONN_PORT:
-		mutex_lock(&bnx2i_conn->ep->hba->net_dev_lock);
-		if (bnx2i_conn->ep->cm_sk)
-			len = sprintf(buf, "%hu\n",
-				      bnx2i_conn->ep->cm_sk->dst_port);
-		mutex_unlock(&bnx2i_conn->ep->hba->net_dev_lock);
+		mutex_lock(&hba->net_dev_lock);
+		if (bnx2i_ep->cm_sk)
+			len = sprintf(buf, "%hu\n", bnx2i_ep->cm_sk->dst_port);
+		mutex_unlock(&hba->net_dev_lock);
 		break;
 	case ISCSI_PARAM_CONN_ADDRESS:
-		mutex_lock(&bnx2i_conn->ep->hba->net_dev_lock);
-		if (bnx2i_conn->ep->cm_sk)
-			len = sprintf(buf, "%pI4\n",
-				      &bnx2i_conn->ep->cm_sk->dst_ip);
-		mutex_unlock(&bnx2i_conn->ep->hba->net_dev_lock);
+		mutex_lock(&hba->net_dev_lock);
+		if (bnx2i_ep->cm_sk)
+			len = sprintf(buf, "%pI4\n", &bnx2i_ep->cm_sk->dst_ip);
+		mutex_unlock(&hba->net_dev_lock);
 		break;
 	default:
-		return iscsi_conn_get_param(cls_conn, param, buf);
+		return -ENOSYS;
 	}
-out:
+
 	return len;
 }
 
@@ -1935,13 +1936,13 @@ static int bnx2i_ep_tcp_conn_active(struct bnx2i_endpoint *bnx2i_ep)
 		cnic_dev_10g = 1;
 
 	switch (bnx2i_ep->state) {
-	case EP_STATE_CONNECT_FAILED:
 	case EP_STATE_CLEANUP_FAILED:
 	case EP_STATE_OFLD_FAILED:
 	case EP_STATE_DISCONN_TIMEDOUT:
 		ret = 0;
 		break;
 	case EP_STATE_CONNECT_START:
+	case EP_STATE_CONNECT_FAILED:
 	case EP_STATE_CONNECT_COMPL:
 	case EP_STATE_ULP_UPDATE_START:
 	case EP_STATE_ULP_UPDATE_COMPL:
@@ -2167,7 +2168,8 @@ struct iscsi_transport bnx2i_iscsi_transport = {
 	.name			= "bnx2i",
 	.caps			= CAP_RECOVERY_L0 | CAP_HDRDGST |
 				  CAP_MULTI_R2T | CAP_DATADGST |
-				  CAP_DATA_PATH_OFFLOAD,
+				  CAP_DATA_PATH_OFFLOAD |
+				  CAP_TEXT_NEGO,
 	.param_mask		= ISCSI_MAX_RECV_DLENGTH |
 				  ISCSI_MAX_XMIT_DLENGTH |
 				  ISCSI_HDRDGST_EN |
@@ -2200,7 +2202,7 @@ struct iscsi_transport bnx2i_iscsi_transport = {
 	.bind_conn		= bnx2i_conn_bind,
 	.destroy_conn		= bnx2i_conn_destroy,
 	.set_param		= iscsi_set_param,
-	.get_conn_param		= bnx2i_conn_get_param,
+	.get_conn_param		= iscsi_conn_get_param,
 	.get_session_param	= iscsi_session_get_param,
 	.get_host_param		= bnx2i_host_get_param,
 	.start_conn		= bnx2i_conn_start,
@@ -2209,6 +2211,7 @@ struct iscsi_transport bnx2i_iscsi_transport = {
 	.xmit_task		= bnx2i_task_xmit,
 	.get_stats		= bnx2i_conn_get_stats,
 	/* TCP connect - disconnect - option-2 interface calls */
+	.get_ep_param		= bnx2i_ep_get_param,
 	.ep_connect		= bnx2i_ep_connect,
 	.ep_poll		= bnx2i_ep_poll,
 	.ep_disconnect		= bnx2i_ep_disconnect,

drivers/scsi/cxgbi/cxgb3i/cxgb3i.c

@@ -105,7 +105,7 @@ static struct iscsi_transport cxgb3i_iscsi_transport = {
 	/* owner and name should be set already */
 	.caps		= CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST
 				| CAP_DATADGST | CAP_DIGEST_OFFLOAD |
-				CAP_PADDING_OFFLOAD,
+				CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO,
 	.param_mask	= ISCSI_MAX_RECV_DLENGTH | ISCSI_MAX_XMIT_DLENGTH |
 				ISCSI_HDRDGST_EN | ISCSI_DATADGST_EN |
 				ISCSI_INITIAL_R2T_EN | ISCSI_MAX_R2T |
@@ -137,7 +137,7 @@ static struct iscsi_transport cxgb3i_iscsi_transport = {
 	.destroy_conn	= iscsi_tcp_conn_teardown,
 	.start_conn	= iscsi_conn_start,
 	.stop_conn	= iscsi_conn_stop,
-	.get_conn_param	= cxgbi_get_conn_param,
+	.get_conn_param	= iscsi_conn_get_param,
 	.set_param	= cxgbi_set_conn_param,
 	.get_stats	= cxgbi_get_conn_stats,
 	/* pdu xmit req from user space */
@@ -152,6 +152,7 @@ static struct iscsi_transport cxgb3i_iscsi_transport = {
 	.xmit_pdu	= cxgbi_conn_xmit_pdu,
 	.parse_pdu_itt	= cxgbi_parse_pdu_itt,
 	/* TCP connect/disconnect */
+	.get_ep_param	= cxgbi_get_ep_param,
 	.ep_connect	= cxgbi_ep_connect,
 	.ep_poll	= cxgbi_ep_poll,
 	.ep_disconnect	= cxgbi_ep_disconnect,
@@ -1108,10 +1109,11 @@ static int ddp_set_map(struct cxgbi_sock *csk, struct cxgbi_pagepod_hdr *hdr,
 		csk, idx, npods, gl);
 
 	for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) {
-		struct sk_buff *skb = ddp->gl_skb[idx];
+		struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
+						PPOD_SIZE, 0, GFP_ATOMIC);
 
-		/* hold on to the skb until we clear the ddp mapping */
-		skb_get(skb);
+		if (!skb)
+			return -ENOMEM;
 
 		ulp_mem_io_set_hdr(skb, pm_addr);
 		cxgbi_ddp_ppod_set((struct cxgbi_pagepod *)(skb->head +
@@ -1136,56 +1138,20 @@ static void ddp_clear_map(struct cxgbi_hba *chba, unsigned int tag,
 		cdev, idx, npods, tag);
 
 	for (i = 0; i < npods; i++, idx++, pm_addr += PPOD_SIZE) {
-		struct sk_buff *skb = ddp->gl_skb[idx];
+		struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
+						PPOD_SIZE, 0, GFP_ATOMIC);
 
 		if (!skb) {
-			pr_err("tag 0x%x, 0x%x, %d/%u, skb NULL.\n",
+			pr_err("tag 0x%x, 0x%x, %d/%u, skb OOM.\n",
 				tag, idx, i, npods);
 			continue;
 		}
-		ddp->gl_skb[idx] = NULL;
-		memset(skb->head + sizeof(struct ulp_mem_io), 0, PPOD_SIZE);
 		ulp_mem_io_set_hdr(skb, pm_addr);
 		skb->priority = CPL_PRIORITY_CONTROL;
 		cxgb3_ofld_send(cdev->lldev, skb);
 	}
 }
 
-static void ddp_free_gl_skb(struct cxgbi_ddp_info *ddp, int idx, int cnt)
-{
-	int i;
-
-	log_debug(1 << CXGBI_DBG_DDP,
-		"ddp 0x%p, idx %d, cnt %d.\n", ddp, idx, cnt);
-
-	for (i = 0; i < cnt; i++, idx++)
-		if (ddp->gl_skb[idx]) {
-			kfree_skb(ddp->gl_skb[idx]);
-			ddp->gl_skb[idx] = NULL;
-		}
-}
-
-static int ddp_alloc_gl_skb(struct cxgbi_ddp_info *ddp, int idx,
-				   int cnt, gfp_t gfp)
-{
-	int i;
-
-	log_debug(1 << CXGBI_DBG_DDP,
-		"ddp 0x%p, idx %d, cnt %d.\n", ddp, idx, cnt);
-
-	for (i = 0; i < cnt; i++) {
-		struct sk_buff *skb = alloc_wr(sizeof(struct ulp_mem_io) +
-						PPOD_SIZE, 0, gfp);
-		if (skb)
-			ddp->gl_skb[idx + i] = skb;
-		else {
-			ddp_free_gl_skb(ddp, idx, i);
-			return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
 static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk,
 				       unsigned int tid, int pg_idx, bool reply)
 {
@@ -1316,8 +1282,6 @@ static int cxgb3i_ddp_init(struct cxgbi_device *cdev)
 	}
 	tdev->ulp_iscsi = ddp;
 
-	cdev->csk_ddp_free_gl_skb = ddp_free_gl_skb;
-	cdev->csk_ddp_alloc_gl_skb = ddp_alloc_gl_skb;
 	cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
 	cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
 	cdev->csk_ddp_set = ddp_set_map;

drivers/scsi/cxgbi/cxgb3i/cxgb3i.h

@@ -24,10 +24,21 @@
 
 extern cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS];
 
-#define cxgb3i_get_private_ipv4addr(ndev) \
-	(((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr)
-#define cxgb3i_set_private_ipv4addr(ndev, addr) \
-	(((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr) = addr
+static inline unsigned int cxgb3i_get_private_ipv4addr(struct net_device *ndev)
+{
+	return ((struct port_info *)(netdev_priv(ndev)))->iscsi_ipv4addr;
+}
+
+static inline void cxgb3i_set_private_ipv4addr(struct net_device *ndev,
+						unsigned int addr)
+{
+	struct port_info *pi =  (struct port_info *)netdev_priv(ndev);
+
+	pi->iscsic.flags = addr ? 1 : 0;
+	pi->iscsi_ipv4addr = addr;
+	if (addr)
+		memcpy(pi->iscsic.mac_addr, ndev->dev_addr, ETH_ALEN);
+}
 
 struct cpl_iscsi_hdr_norss {
 	union opcode_tid ot;

drivers/scsi/cxgbi/cxgb4i/cxgb4i.c

@@ -106,7 +106,7 @@ static struct iscsi_transport cxgb4i_iscsi_transport = {
 	.name		= DRV_MODULE_NAME,
 	.caps		= CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST |
 				CAP_DATADGST | CAP_DIGEST_OFFLOAD |
-				CAP_PADDING_OFFLOAD,
+				CAP_PADDING_OFFLOAD | CAP_TEXT_NEGO,
 	.param_mask	= ISCSI_MAX_RECV_DLENGTH | ISCSI_MAX_XMIT_DLENGTH |
 				ISCSI_HDRDGST_EN | ISCSI_DATADGST_EN |
 				ISCSI_INITIAL_R2T_EN | ISCSI_MAX_R2T |
@@ -138,7 +138,7 @@ static struct iscsi_transport cxgb4i_iscsi_transport = {
 	.destroy_conn	= iscsi_tcp_conn_teardown,
 	.start_conn		= iscsi_conn_start,
 	.stop_conn		= iscsi_conn_stop,
-	.get_conn_param	= cxgbi_get_conn_param,
+	.get_conn_param	= iscsi_conn_get_param,
 	.set_param	= cxgbi_set_conn_param,
 	.get_stats	= cxgbi_get_conn_stats,
 	/* pdu xmit req from user space */
@@ -153,6 +153,7 @@ static struct iscsi_transport cxgb4i_iscsi_transport = {
 	.xmit_pdu	= cxgbi_conn_xmit_pdu,
 	.parse_pdu_itt	= cxgbi_parse_pdu_itt,
 	/* TCP connect/disconnect */
+	.get_ep_param	= cxgbi_get_ep_param,
 	.ep_connect	= cxgbi_ep_connect,
 	.ep_poll	= cxgbi_ep_poll,
 	.ep_disconnect	= cxgbi_ep_disconnect,
@@ -1425,8 +1426,6 @@ static int cxgb4i_ddp_init(struct cxgbi_device *cdev)
 	cxgbi_ddp_page_size_factor(pgsz_factor);
 	cxgb4_iscsi_init(lldi->ports[0], tagmask, pgsz_factor);
 
-	cdev->csk_ddp_free_gl_skb = NULL;
-	cdev->csk_ddp_alloc_gl_skb = NULL;
 	cdev->csk_ddp_setup_digest = ddp_setup_conn_digest;
 	cdev->csk_ddp_setup_pgidx = ddp_setup_conn_pgidx;
 	cdev->csk_ddp_set = ddp_set_map;

drivers/scsi/cxgbi/libcxgbi.c

@@ -530,6 +530,7 @@ static struct cxgbi_sock *cxgbi_check_route(struct sockaddr *dst_addr)
 	csk->dst = dst;
 	csk->daddr.sin_addr.s_addr = daddr->sin_addr.s_addr;
 	csk->daddr.sin_port = daddr->sin_port;
+	csk->daddr.sin_family = daddr->sin_family;
 	csk->saddr.sin_addr.s_addr = rt->rt_src;
 
 	return csk;
@@ -1264,12 +1265,6 @@ static int ddp_tag_reserve(struct cxgbi_sock *csk, unsigned int tid,
 		return idx;
 	}
 
-	if (cdev->csk_ddp_alloc_gl_skb) {
-		err = cdev->csk_ddp_alloc_gl_skb(ddp, idx, npods, gfp);
-		if (err < 0)
-			goto unmark_entries;
-	}
-
 	tag = cxgbi_ddp_tag_base(tformat, sw_tag);
 	tag |= idx << PPOD_IDX_SHIFT;
 
@@ -1280,11 +1275,8 @@ static int ddp_tag_reserve(struct cxgbi_sock *csk, unsigned int tid,
 	hdr.page_offset = htonl(gl->offset);
 
 	err = cdev->csk_ddp_set(csk, &hdr, idx, npods, gl);
-	if (err < 0) {
-		if (cdev->csk_ddp_free_gl_skb)
-			cdev->csk_ddp_free_gl_skb(ddp, idx, npods);
+	if (err < 0)
 		goto unmark_entries;
-	}
 
 	ddp->idx_last = idx;
 	log_debug(1 << CXGBI_DBG_DDP,
@@ -1350,8 +1342,6 @@ static void ddp_destroy(struct kref *kref)
 					>> PPOD_PAGES_SHIFT;
 			pr_info("cdev 0x%p, ddp %d + %d.\n", cdev, i, npods);
 			kfree(gl);
-			if (cdev->csk_ddp_free_gl_skb)
-				cdev->csk_ddp_free_gl_skb(ddp, i, npods);
 			i += npods;
 		} else
 			i++;
@@ -1394,8 +1384,6 @@ int cxgbi_ddp_init(struct cxgbi_device *cdev,
 		return -ENOMEM;
 	}
 	ddp->gl_map = (struct cxgbi_gather_list **)(ddp + 1);
-	ddp->gl_skb = (struct sk_buff **)(((char *)ddp->gl_map) +
-				ppmax * sizeof(struct cxgbi_gather_list *));
 	cdev->ddp = ddp;
 
 	spin_lock_init(&ddp->map_lock);
@@ -1895,13 +1883,16 @@ EXPORT_SYMBOL_GPL(cxgbi_conn_alloc_pdu);
 
 static inline void tx_skb_setmode(struct sk_buff *skb, int hcrc, int dcrc)
 {
-	u8 submode = 0;
+	if (hcrc || dcrc) {
+		u8 submode = 0;
 
-	if (hcrc)
-		submode |= 1;
-	if (dcrc)
-		submode |= 2;
-	cxgbi_skcb_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
+		if (hcrc)
+			submode |= 1;
+		if (dcrc)
+			submode |= 2;
+		cxgbi_skcb_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
+	} else
+		cxgbi_skcb_ulp_mode(skb) = 0;
 }
 
 int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset,
@@ -2197,32 +2188,34 @@ int cxgbi_set_conn_param(struct iscsi_cls_conn *cls_conn,
 }
 EXPORT_SYMBOL_GPL(cxgbi_set_conn_param);
 
-int cxgbi_get_conn_param(struct iscsi_cls_conn *cls_conn,
-			enum iscsi_param param, char *buf)
+int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param param,
+		       char *buf)
 {
-	struct iscsi_conn *iconn = cls_conn->dd_data;
+	struct cxgbi_endpoint *cep = ep->dd_data;
+	struct cxgbi_sock *csk;
 	int len;
 
 	log_debug(1 << CXGBI_DBG_ISCSI,
-		"cls_conn 0x%p, param %d.\n", cls_conn, param);
+		"cls_conn 0x%p, param %d.\n", ep, param);
 
 	switch (param) {
 	case ISCSI_PARAM_CONN_PORT:
-		spin_lock_bh(&iconn->session->lock);
-		len = sprintf(buf, "%hu\n", iconn->portal_port);
-		spin_unlock_bh(&iconn->session->lock);
-		break;
 	case ISCSI_PARAM_CONN_ADDRESS:
-		spin_lock_bh(&iconn->session->lock);
-		len = sprintf(buf, "%s\n", iconn->portal_address);
-		spin_unlock_bh(&iconn->session->lock);
-		break;
+		if (!cep)
+			return -ENOTCONN;
+
+		csk = cep->csk;
+		if (!csk)
+			return -ENOTCONN;
+
+		return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+						 &csk->daddr, param, buf);
 	default:
-		return iscsi_conn_get_param(cls_conn, param, buf);
+		return -ENOSYS;
 	}
 	return len;
 }
-EXPORT_SYMBOL_GPL(cxgbi_get_conn_param);
+EXPORT_SYMBOL_GPL(cxgbi_get_ep_param);
 
 struct iscsi_cls_conn *
 cxgbi_create_conn(struct iscsi_cls_session *cls_session, u32 cid)
@@ -2289,11 +2282,6 @@ int cxgbi_bind_conn(struct iscsi_cls_session *cls_session,
 	cxgbi_conn_max_xmit_dlength(conn);
 	cxgbi_conn_max_recv_dlength(conn);
 
-	spin_lock_bh(&conn->session->lock);
-	sprintf(conn->portal_address, "%pI4", &csk->daddr.sin_addr.s_addr);
-	conn->portal_port = ntohs(csk->daddr.sin_port);
-	spin_unlock_bh(&conn->session->lock);
-
 	log_debug(1 << CXGBI_DBG_ISCSI,
 		"cls 0x%p,0x%p, ep 0x%p, cconn 0x%p, csk 0x%p.\n",
 		cls_session, cls_conn, ep, cconn, csk);

drivers/scsi/cxgbi/libcxgbi.h

@@ -131,7 +131,6 @@ struct cxgbi_ddp_info {
 	unsigned int rsvd_tag_mask;
 	spinlock_t map_lock;
 	struct cxgbi_gather_list **gl_map;
-	struct sk_buff **gl_skb;
 };
 
 #define DDP_PGIDX_MAX		4
@@ -536,8 +535,6 @@ struct cxgbi_device {
 	struct cxgbi_ddp_info *ddp;
 
 	void (*dev_ddp_cleanup)(struct cxgbi_device *);
-	void (*csk_ddp_free_gl_skb)(struct cxgbi_ddp_info *, int, int);
-	int (*csk_ddp_alloc_gl_skb)(struct cxgbi_ddp_info *, int, int, gfp_t);
 	int (*csk_ddp_set)(struct cxgbi_sock *, struct cxgbi_pagepod_hdr *,
 				unsigned int, unsigned int,
 				struct cxgbi_gather_list *);
@@ -715,7 +712,7 @@ void cxgbi_cleanup_task(struct iscsi_task *task);
 void cxgbi_get_conn_stats(struct iscsi_cls_conn *, struct iscsi_stats *);
 int cxgbi_set_conn_param(struct iscsi_cls_conn *,
 			enum iscsi_param, char *, int);
-int cxgbi_get_conn_param(struct iscsi_cls_conn *, enum iscsi_param, char *);
+int cxgbi_get_ep_param(struct iscsi_endpoint *ep, enum iscsi_param, char *);
 struct iscsi_cls_conn *cxgbi_create_conn(struct iscsi_cls_session *, u32);
 int cxgbi_bind_conn(struct iscsi_cls_session *,
 			struct iscsi_cls_conn *, u64, int);

drivers/scsi/device_handler/scsi_dh.c

@@ -25,16 +25,9 @@
 #include <scsi/scsi_dh.h>
 #include "../scsi_priv.h"
 
-struct scsi_dh_devinfo_list {
-	struct list_head node;
-	char vendor[9];
-	char model[17];
-	struct scsi_device_handler *handler;
-};
-
 static DEFINE_SPINLOCK(list_lock);
 static LIST_HEAD(scsi_dh_list);
-static LIST_HEAD(scsi_dh_dev_list);
+static int scsi_dh_list_idx = 1;
 
 static struct scsi_device_handler *get_device_handler(const char *name)
 {
@@ -51,40 +44,18 @@ static struct scsi_device_handler *get_device_handler(const char *name)
 	return found;
 }
 
-
-static struct scsi_device_handler *
-scsi_dh_cache_lookup(struct scsi_device *sdev)
+static struct scsi_device_handler *get_device_handler_by_idx(int idx)
 {
-	struct scsi_dh_devinfo_list *tmp;
-	struct scsi_device_handler *found_dh = NULL;
+	struct scsi_device_handler *tmp, *found = NULL;
 
 	spin_lock(&list_lock);
-	list_for_each_entry(tmp, &scsi_dh_dev_list, node) {
-		if (!strncmp(sdev->vendor, tmp->vendor, strlen(tmp->vendor)) &&
-		    !strncmp(sdev->model, tmp->model, strlen(tmp->model))) {
-			found_dh = tmp->handler;
+	list_for_each_entry(tmp, &scsi_dh_list, list) {
+		if (tmp->idx == idx) {
+			found = tmp;
 			break;
 		}
 	}
 	spin_unlock(&list_lock);
-
-	return found_dh;
-}
-
-static int scsi_dh_handler_lookup(struct scsi_device_handler *scsi_dh,
-				  struct scsi_device *sdev)
-{
-	int i, found = 0;
-
-	for(i = 0; scsi_dh->devlist[i].vendor; i++) {
-		if (!strncmp(sdev->vendor, scsi_dh->devlist[i].vendor,
-			     strlen(scsi_dh->devlist[i].vendor)) &&
-		    !strncmp(sdev->model, scsi_dh->devlist[i].model,
-			     strlen(scsi_dh->devlist[i].model))) {
-			found = 1;
-			break;
-		}
-	}
 	return found;
 }
 
@@ -102,41 +73,14 @@ device_handler_match(struct scsi_device_handler *scsi_dh,
 		     struct scsi_device *sdev)
 {
 	struct scsi_device_handler *found_dh = NULL;
-	struct scsi_dh_devinfo_list *tmp;
+	int idx;
 
-	found_dh = scsi_dh_cache_lookup(sdev);
-	if (found_dh)
-		return found_dh;
+	idx = scsi_get_device_flags_keyed(sdev, sdev->vendor, sdev->model,
+					  SCSI_DEVINFO_DH);
+	found_dh = get_device_handler_by_idx(idx);
 
-	if (scsi_dh) {
-		if (scsi_dh_handler_lookup(scsi_dh, sdev))
-			found_dh = scsi_dh;
-	} else {
-		struct scsi_device_handler *tmp_dh;
-
-		spin_lock(&list_lock);
-		list_for_each_entry(tmp_dh, &scsi_dh_list, list) {
-			if (scsi_dh_handler_lookup(tmp_dh, sdev))
-				found_dh = tmp_dh;
-		}
-		spin_unlock(&list_lock);
-	}
-
-	if (found_dh) { /* If device is found, add it to the cache */
-		tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
-		if (tmp) {
-			strncpy(tmp->vendor, sdev->vendor, 8);
-			strncpy(tmp->model, sdev->model, 16);
-			tmp->vendor[8] = '\0';
-			tmp->model[16] = '\0';
-			tmp->handler = found_dh;
-			spin_lock(&list_lock);
-			list_add(&tmp->node, &scsi_dh_dev_list);
-			spin_unlock(&list_lock);
-		} else {
-			found_dh = NULL;
-		}
-	}
+	if (scsi_dh && found_dh != scsi_dh)
+		found_dh = NULL;
 
 	return found_dh;
 }
@@ -373,12 +317,25 @@ static int scsi_dh_notifier_remove(struct device *dev, void *data)
  */
 int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
 {
+	int i;
+
 	if (get_device_handler(scsi_dh->name))
 		return -EBUSY;
 
 	spin_lock(&list_lock);
+	scsi_dh->idx = scsi_dh_list_idx++;
 	list_add(&scsi_dh->list, &scsi_dh_list);
 	spin_unlock(&list_lock);
+
+	for (i = 0; scsi_dh->devlist[i].vendor; i++) {
+		scsi_dev_info_list_add_keyed(0,
+					scsi_dh->devlist[i].vendor,
+					scsi_dh->devlist[i].model,
+					NULL,
+					scsi_dh->idx,
+					SCSI_DEVINFO_DH);
+	}
+
 	bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
 	printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
 
@@ -395,7 +352,7 @@ EXPORT_SYMBOL_GPL(scsi_register_device_handler);
  */
 int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
 {
-	struct scsi_dh_devinfo_list *tmp, *pos;
+	int i;
 
 	if (!get_device_handler(scsi_dh->name))
 		return -ENODEV;
@@ -403,14 +360,14 @@ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
 	bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
 			 scsi_dh_notifier_remove);
 
+	for (i = 0; scsi_dh->devlist[i].vendor; i++) {
+		scsi_dev_info_list_del_keyed(scsi_dh->devlist[i].vendor,
+					     scsi_dh->devlist[i].model,
+					     SCSI_DEVINFO_DH);
+	}
+
 	spin_lock(&list_lock);
 	list_del(&scsi_dh->list);
-	list_for_each_entry_safe(pos, tmp, &scsi_dh_dev_list, node) {
-		if (pos->handler == scsi_dh) {
-			list_del(&pos->node);
-			kfree(pos);
-		}
-	}
 	spin_unlock(&list_lock);
 	printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
 
@@ -576,6 +533,10 @@ static int __init scsi_dh_init(void)
 {
 	int r;
 
+	r = scsi_dev_info_add_list(SCSI_DEVINFO_DH, "SCSI Device Handler");
+	if (r)
+		return r;
+
 	r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
 
 	if (!r)
@@ -590,6 +551,7 @@ static void __exit scsi_dh_exit(void)
 	bus_for_each_dev(&scsi_bus_type, NULL, NULL,
 			 scsi_dh_sysfs_attr_remove);
 	bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
+	scsi_dev_info_remove_list(SCSI_DEVINFO_DH);
 }
 
 module_init(scsi_dh_init);

drivers/scsi/device_handler/scsi_dh_alua.c

@@ -253,13 +253,15 @@ static void stpg_endio(struct request *req, int error)
 {
 	struct alua_dh_data *h = req->end_io_data;
 	struct scsi_sense_hdr sense_hdr;
-	unsigned err = SCSI_DH_IO;
+	unsigned err = SCSI_DH_OK;
 
 	if (error || host_byte(req->errors) != DID_OK ||
-			msg_byte(req->errors) != COMMAND_COMPLETE)
+			msg_byte(req->errors) != COMMAND_COMPLETE) {
+		err = SCSI_DH_IO;
 		goto done;
+	}
 
-	if (err == SCSI_DH_IO && h->senselen > 0) {
+	if (h->senselen > 0) {
 		err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
 					   &sense_hdr);
 		if (!err) {
@@ -285,7 +287,8 @@ static void stpg_endio(struct request *req, int error)
 			    print_alua_state(h->state));
 	}
 done:
-	blk_put_request(req);
+	req->end_io_data = NULL;
+	__blk_put_request(req->q, req);
 	if (h->callback_fn) {
 		h->callback_fn(h->callback_data, err);
 		h->callback_fn = h->callback_data = NULL;
@@ -303,7 +306,6 @@ done:
 static unsigned submit_stpg(struct alua_dh_data *h)
 {
 	struct request *rq;
-	int err = SCSI_DH_RES_TEMP_UNAVAIL;
 	int stpg_len = 8;
 	struct scsi_device *sdev = h->sdev;
 
@@ -332,7 +334,7 @@ static unsigned submit_stpg(struct alua_dh_data *h)
 	rq->end_io_data = h;
 
 	blk_execute_rq_nowait(rq->q, NULL, rq, 1, stpg_endio);
-	return err;
+	return SCSI_DH_OK;
 }
 
 /*
@@ -730,7 +732,9 @@ static const struct scsi_dh_devlist alua_dev_list[] = {
 	{"Pillar", "Axiom" },
 	{"Intel", "Multi-Flex"},
 	{"NETAPP", "LUN"},
+	{"NETAPP", "LUN C-Mode"},
 	{"AIX", "NVDISK"},
+	{"Promise", "VTrak"},
 	{NULL, NULL}
 };
 
@@ -759,7 +763,7 @@ static int alua_bus_attach(struct scsi_device *sdev)
 	unsigned long flags;
 	int err = SCSI_DH_OK;
 
-	scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+	scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
 			       + sizeof(*h) , GFP_KERNEL);
 	if (!scsi_dh_data) {
 		sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",

drivers/scsi/device_handler/scsi_dh_emc.c

@@ -650,7 +650,7 @@ static int clariion_bus_attach(struct scsi_device *sdev)
 	unsigned long flags;
 	int err;
 
-	scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+	scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
 			       + sizeof(*h) , GFP_KERNEL);
 	if (!scsi_dh_data) {
 		sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",

drivers/scsi/device_handler/scsi_dh_hp_sw.c

@@ -225,7 +225,8 @@ static void start_stop_endio(struct request *req, int error)
 		}
 	}
 done:
-	blk_put_request(req);
+	req->end_io_data = NULL;
+	__blk_put_request(req->q, req);
 	if (h->callback_fn) {
 		h->callback_fn(h->callback_data, err);
 		h->callback_fn = h->callback_data = NULL;
@@ -338,8 +339,8 @@ static int hp_sw_bus_attach(struct scsi_device *sdev)
 	unsigned long flags;
 	int ret;
 
-	scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
-			       + sizeof(struct hp_sw_dh_data) , GFP_KERNEL);
+	scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+			       + sizeof(*h) , GFP_KERNEL);
 	if (!scsi_dh_data) {
 		sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n",
 			    HP_SW_NAME);

drivers/scsi/device_handler/scsi_dh_rdac.c

@@ -281,11 +281,13 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
 }
 
 static struct request *rdac_failover_get(struct scsi_device *sdev,
-					 struct rdac_dh_data *h)
+			struct rdac_dh_data *h, struct list_head *list)
 {
 	struct request *rq;
 	struct rdac_mode_common *common;
 	unsigned data_size;
+	struct rdac_queue_data *qdata;
+	u8 *lun_table;
 
 	if (h->ctlr->use_ms10) {
 		struct rdac_pg_expanded *rdac_pg;
@@ -298,6 +300,7 @@ static struct request *rdac_failover_get(struct scsi_device *sdev,
 		rdac_pg->subpage_code = 0x1;
 		rdac_pg->page_len[0] = 0x01;
 		rdac_pg->page_len[1] = 0x28;
+		lun_table = rdac_pg->lun_table;
 	} else {
 		struct rdac_pg_legacy *rdac_pg;
 
@@ -307,11 +310,16 @@ static struct request *rdac_failover_get(struct scsi_device *sdev,
 		common = &rdac_pg->common;
 		rdac_pg->page_code = RDAC_PAGE_CODE_REDUNDANT_CONTROLLER;
 		rdac_pg->page_len = 0x68;
+		lun_table = rdac_pg->lun_table;
 	}
 	common->rdac_mode[1] = RDAC_MODE_TRANSFER_SPECIFIED_LUNS;
 	common->quiescence_timeout = RDAC_QUIESCENCE_TIME;
 	common->rdac_options = RDAC_FORCED_QUIESENCE;
 
+	list_for_each_entry(qdata, list, entry) {
+		lun_table[qdata->h->lun] = 0x81;
+	}
+
 	/* get request for block layer packet command */
 	rq = get_rdac_req(sdev, &h->ctlr->mode_select, data_size, WRITE);
 	if (!rq)
@@ -565,7 +573,6 @@ static void send_mode_select(struct work_struct *work)
 	int err, retry_cnt = RDAC_RETRY_COUNT;
 	struct rdac_queue_data *tmp, *qdata;
 	LIST_HEAD(list);
-	u8 *lun_table;
 
 	spin_lock(&ctlr->ms_lock);
 	list_splice_init(&ctlr->ms_head, &list);
@@ -573,21 +580,12 @@ static void send_mode_select(struct work_struct *work)
 	ctlr->ms_sdev = NULL;
 	spin_unlock(&ctlr->ms_lock);
 
-	if (ctlr->use_ms10)
-		lun_table = ctlr->mode_select.expanded.lun_table;
-	else
-		lun_table = ctlr->mode_select.legacy.lun_table;
-
 retry:
 	err = SCSI_DH_RES_TEMP_UNAVAIL;
-	rq = rdac_failover_get(sdev, h);
+	rq = rdac_failover_get(sdev, h, &list);
 	if (!rq)
 		goto done;
 
-	list_for_each_entry(qdata, &list, entry) {
-		lun_table[qdata->h->lun] = 0x81;
-	}
-
 	RDAC_LOG(RDAC_LOG_FAILOVER, sdev, "array %s, ctlr %d, "
 		"%s MODE_SELECT command",
 		(char *) h->ctlr->array_name, h->ctlr->index,
@@ -769,6 +767,7 @@ static const struct scsi_dh_devlist rdac_dev_list[] = {
 	{"DELL", "MD32xx"},
 	{"DELL", "MD32xxi"},
 	{"DELL", "MD36xxi"},
+	{"DELL", "MD36xxf"},
 	{"LSI", "INF-01-00"},
 	{"ENGENIO", "INF-01-00"},
 	{"STK", "FLEXLINE 380"},
@@ -800,7 +799,7 @@ static int rdac_bus_attach(struct scsi_device *sdev)
 	int err;
 	char array_name[ARRAY_LABEL_LEN];
 
-	scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+	scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
 			       + sizeof(*h) , GFP_KERNEL);
 	if (!scsi_dh_data) {
 		sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
@@ -906,4 +905,5 @@ module_exit(rdac_exit);
 
 MODULE_DESCRIPTION("Multipath LSI/Engenio RDAC driver");
 MODULE_AUTHOR("Mike Christie, Chandra Seetharaman");
+MODULE_VERSION("01.00.0000.0000");
 MODULE_LICENSE("GPL");

drivers/scsi/fcoe/Makefile

@@ -1,2 +1,4 @@
 obj-$(CONFIG_FCOE) += fcoe.o
 obj-$(CONFIG_LIBFCOE) += libfcoe.o
+
+libfcoe-objs := fcoe_ctlr.o fcoe_transport.o

drivers/scsi/fcoe/fcoe.h

@@ -24,7 +24,7 @@
 #include <linux/kthread.h>
 
 #define FCOE_MAX_QUEUE_DEPTH	256
-#define FCOE_LOW_QUEUE_DEPTH	32
+#define FCOE_MIN_QUEUE_DEPTH	32
 
 #define FCOE_WORD_TO_BYTE	4
 
@@ -40,12 +40,6 @@
 #define FCOE_MIN_XID		0x0000	/* the min xid supported by fcoe_sw */
 #define FCOE_MAX_XID		0x0FFF	/* the max xid supported by fcoe_sw */
 
-/*
- * Max MTU for FCoE: 14 (FCoE header) + 24 (FC header) + 2112 (max FC payload)
- * + 4 (FC CRC) + 4 (FCoE trailer) =  2158 bytes
- */
-#define FCOE_MTU	2158
-
 unsigned int fcoe_debug_logging;
 module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
@@ -70,21 +64,6 @@ do {                                                            	\
 			   printk(KERN_INFO "fcoe: %s: " fmt,	\
 				  netdev->name, ##args);)
 
-/**
- * struct fcoe_percpu_s - The per-CPU context for FCoE receive threads
- * @thread:	    The thread context
- * @fcoe_rx_list:   The queue of pending packets to process
- * @page:	    The memory page for calculating frame trailer CRCs
- * @crc_eof_offset: The offset into the CRC page pointing to available
- *		    memory for a new trailer
- */
-struct fcoe_percpu_s {
-	struct task_struct *thread;
-	struct sk_buff_head fcoe_rx_list;
-	struct page *crc_eof_page;
-	int crc_eof_offset;
-};
-
 /**
  * struct fcoe_interface - A FCoE interface
  * @list:	      Handle for a list of FCoE interfaces
@@ -108,30 +87,6 @@ struct fcoe_interface {
 	struct kref	   kref;
 };
 
-/**
- * struct fcoe_port - The FCoE private structure
- * @fcoe:		       The associated fcoe interface
- * @lport:		       The associated local port
- * @fcoe_pending_queue:	       The pending Rx queue of skbs
- * @fcoe_pending_queue_active: Indicates if the pending queue is active
- * @timer:		       The queue timer
- * @destroy_work:	       Handle for work context
- *			       (to prevent RTNL deadlocks)
- * @data_srt_addr:	       Source address for data
- *
- * An instance of this structure is to be allocated along with the
- * Scsi_Host and libfc fc_lport structures.
- */
-struct fcoe_port {
-	struct fcoe_interface *fcoe;
-	struct fc_lport	      *lport;
-	struct sk_buff_head   fcoe_pending_queue;
-	u8		      fcoe_pending_queue_active;
-	struct timer_list     timer;
-	struct work_struct    destroy_work;
-	u8		      data_src_addr[ETH_ALEN];
-};
-
 #define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr)
 
 /**
@@ -140,7 +95,8 @@ struct fcoe_port {
  */
 static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
 {
-	return ((struct fcoe_port *)lport_priv(lport))->fcoe->netdev;
+	return ((struct fcoe_interface *)
+			((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
 }
 
 #endif /* _FCOE_H_ */

drivers/scsi/fcoe/libfcoe.c → drivers/scsi/fcoe/fcoe_ctlr.c

@@ -44,9 +44,7 @@
 #include <scsi/libfc.h>
 #include <scsi/libfcoe.h>
 
-MODULE_AUTHOR("Open-FCoE.org");
-MODULE_DESCRIPTION("FIP discovery protocol support for FCoE HBAs");
-MODULE_LICENSE("GPL v2");
+#include "libfcoe.h"
 
 #define	FCOE_CTLR_MIN_FKA	500		/* min keep alive (mS) */
 #define	FCOE_CTLR_DEF_FKA	FIP_DEF_FKA	/* default keep alive (mS) */
@@ -66,31 +64,7 @@ static u8 fcoe_all_enode[ETH_ALEN] = FIP_ALL_ENODE_MACS;
 static u8 fcoe_all_vn2vn[ETH_ALEN] = FIP_ALL_VN2VN_MACS;
 static u8 fcoe_all_p2p[ETH_ALEN] = FIP_ALL_P2P_MACS;
 
-unsigned int libfcoe_debug_logging;
-module_param_named(debug_logging, libfcoe_debug_logging, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
-
-#define LIBFCOE_LOGGING	    0x01 /* General logging, not categorized */
-#define LIBFCOE_FIP_LOGGING 0x02 /* FIP logging */
-
-#define LIBFCOE_CHECK_LOGGING(LEVEL, CMD)		\
-do {							\
-	if (unlikely(libfcoe_debug_logging & LEVEL))	\
-		do {					\
-			CMD;				\
-		} while (0);				\
-} while (0)
-
-#define LIBFCOE_DBG(fmt, args...)					\
-	LIBFCOE_CHECK_LOGGING(LIBFCOE_LOGGING,				\
-			      printk(KERN_INFO "libfcoe: " fmt, ##args);)
-
-#define LIBFCOE_FIP_DBG(fip, fmt, args...)				\
-	LIBFCOE_CHECK_LOGGING(LIBFCOE_FIP_LOGGING,			\
-			      printk(KERN_INFO "host%d: fip: " fmt, 	\
-				     (fip)->lp->host->host_no, ##args);)
-
-static const char *fcoe_ctlr_states[] = {
+static const char * const fcoe_ctlr_states[] = {
 	[FIP_ST_DISABLED] =	"DISABLED",
 	[FIP_ST_LINK_WAIT] =	"LINK_WAIT",
 	[FIP_ST_AUTO] =		"AUTO",
@@ -308,8 +282,8 @@ static void fcoe_ctlr_solicit(struct fcoe_ctlr *fip, struct fcoe_fcf *fcf)
 			struct fip_mac_desc mac;
 			struct fip_wwn_desc wwnn;
 			struct fip_size_desc size;
-		} __attribute__((packed)) desc;
-	}  __attribute__((packed)) *sol;
+		} __packed desc;
+	}  __packed * sol;
 	u32 fcoe_size;
 
 	skb = dev_alloc_skb(sizeof(*sol));
@@ -456,7 +430,7 @@ static void fcoe_ctlr_send_keep_alive(struct fcoe_ctlr *fip,
 		struct ethhdr eth;
 		struct fip_header fip;
 		struct fip_mac_desc mac;
-	} __attribute__((packed)) *kal;
+	} __packed * kal;
 	struct fip_vn_desc *vn;
 	u32 len;
 	struct fc_lport *lp;
@@ -527,7 +501,7 @@ static int fcoe_ctlr_encaps(struct fcoe_ctlr *fip, struct fc_lport *lport,
 		struct ethhdr eth;
 		struct fip_header fip;
 		struct fip_encaps encaps;
-	} __attribute__((packed)) *cap;
+	} __packed * cap;
 	struct fc_frame_header *fh;
 	struct fip_mac_desc *mac;
 	struct fcoe_fcf *fcf;
@@ -1819,7 +1793,7 @@ static void fcoe_ctlr_vn_send(struct fcoe_ctlr *fip,
 		struct fip_mac_desc mac;
 		struct fip_wwn_desc wwnn;
 		struct fip_vn_desc vn;
-	} __attribute__((packed)) *frame;
+	} __packed * frame;
 	struct fip_fc4_feat *ff;
 	struct fip_size_desc *size;
 	u32 fcp_feat;

drivers/scsi/fcoe/fcoe_transport.c

@@ -0,0 +1,770 @@
+/*
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Maintained at www.Open-FCoE.org
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/errno.h>
+#include <linux/crc32.h>
+#include <scsi/libfcoe.h>
+
+#include "libfcoe.h"
+
+MODULE_AUTHOR("Open-FCoE.org");
+MODULE_DESCRIPTION("FIP discovery protocol and FCoE transport for FCoE HBAs");
+MODULE_LICENSE("GPL v2");
+
+static int fcoe_transport_create(const char *, struct kernel_param *);
+static int fcoe_transport_destroy(const char *, struct kernel_param *);
+static int fcoe_transport_show(char *buffer, const struct kernel_param *kp);
+static struct fcoe_transport *fcoe_transport_lookup(struct net_device *device);
+static struct fcoe_transport *fcoe_netdev_map_lookup(struct net_device *device);
+static int fcoe_transport_enable(const char *, struct kernel_param *);
+static int fcoe_transport_disable(const char *, struct kernel_param *);
+static int libfcoe_device_notification(struct notifier_block *notifier,
+				    ulong event, void *ptr);
+
+static LIST_HEAD(fcoe_transports);
+static DEFINE_MUTEX(ft_mutex);
+static LIST_HEAD(fcoe_netdevs);
+static DEFINE_MUTEX(fn_mutex);
+
+unsigned int libfcoe_debug_logging;
+module_param_named(debug_logging, libfcoe_debug_logging, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
+
+module_param_call(show, NULL, fcoe_transport_show, NULL, S_IRUSR);
+__MODULE_PARM_TYPE(show, "string");
+MODULE_PARM_DESC(show, " Show attached FCoE transports");
+
+module_param_call(create, fcoe_transport_create, NULL,
+		  (void *)FIP_MODE_FABRIC, S_IWUSR);
+__MODULE_PARM_TYPE(create, "string");
+MODULE_PARM_DESC(create, " Creates fcoe instance on a ethernet interface");
+
+module_param_call(create_vn2vn, fcoe_transport_create, NULL,
+		  (void *)FIP_MODE_VN2VN, S_IWUSR);
+__MODULE_PARM_TYPE(create_vn2vn, "string");
+MODULE_PARM_DESC(create_vn2vn, " Creates a VN_node to VN_node FCoE instance "
+		 "on an Ethernet interface");
+
+module_param_call(destroy, fcoe_transport_destroy, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(destroy, "string");
+MODULE_PARM_DESC(destroy, " Destroys fcoe instance on a ethernet interface");
+
+module_param_call(enable, fcoe_transport_enable, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(enable, "string");
+MODULE_PARM_DESC(enable, " Enables fcoe on a ethernet interface.");
+
+module_param_call(disable, fcoe_transport_disable, NULL, NULL, S_IWUSR);
+__MODULE_PARM_TYPE(disable, "string");
+MODULE_PARM_DESC(disable, " Disables fcoe on a ethernet interface.");
+
+/* notification function for packets from net device */
+static struct notifier_block libfcoe_notifier = {
+	.notifier_call = libfcoe_device_notification,
+};
+
+/**
+ * fcoe_fc_crc() - Calculates the CRC for a given frame
+ * @fp: The frame to be checksumed
+ *
+ * This uses crc32() routine to calculate the CRC for a frame
+ *
+ * Return: The 32 bit CRC value
+ */
+u32 fcoe_fc_crc(struct fc_frame *fp)
+{
+	struct sk_buff *skb = fp_skb(fp);
+	struct skb_frag_struct *frag;
+	unsigned char *data;
+	unsigned long off, len, clen;
+	u32 crc;
+	unsigned i;
+
+	crc = crc32(~0, skb->data, skb_headlen(skb));
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		frag = &skb_shinfo(skb)->frags[i];
+		off = frag->page_offset;
+		len = frag->size;
+		while (len > 0) {
+			clen = min(len, PAGE_SIZE - (off & ~PAGE_MASK));
+			data = kmap_atomic(frag->page + (off >> PAGE_SHIFT),
+					   KM_SKB_DATA_SOFTIRQ);
+			crc = crc32(crc, data + (off & ~PAGE_MASK), clen);
+			kunmap_atomic(data, KM_SKB_DATA_SOFTIRQ);
+			off += clen;
+			len -= clen;
+		}
+	}
+	return crc;
+}
+EXPORT_SYMBOL_GPL(fcoe_fc_crc);
+
+/**
+ * fcoe_start_io() - Start FCoE I/O
+ * @skb: The packet to be transmitted
+ *
+ * This routine is called from the net device to start transmitting
+ * FCoE packets.
+ *
+ * Returns: 0 for success
+ */
+int fcoe_start_io(struct sk_buff *skb)
+{
+	struct sk_buff *nskb;
+	int rc;
+
+	nskb = skb_clone(skb, GFP_ATOMIC);
+	if (!nskb)
+		return -ENOMEM;
+	rc = dev_queue_xmit(nskb);
+	if (rc != 0)
+		return rc;
+	kfree_skb(skb);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(fcoe_start_io);
+
+
+/**
+ * fcoe_clean_pending_queue() - Dequeue a skb and free it
+ * @lport: The local port to dequeue a skb on
+ */
+void fcoe_clean_pending_queue(struct fc_lport *lport)
+{
+	struct fcoe_port  *port = lport_priv(lport);
+	struct sk_buff *skb;
+
+	spin_lock_bh(&port->fcoe_pending_queue.lock);
+	while ((skb = __skb_dequeue(&port->fcoe_pending_queue)) != NULL) {
+		spin_unlock_bh(&port->fcoe_pending_queue.lock);
+		kfree_skb(skb);
+		spin_lock_bh(&port->fcoe_pending_queue.lock);
+	}
+	spin_unlock_bh(&port->fcoe_pending_queue.lock);
+}
+EXPORT_SYMBOL_GPL(fcoe_clean_pending_queue);
+
+/**
+ * fcoe_check_wait_queue() - Attempt to clear the transmit backlog
+ * @lport: The local port whose backlog is to be cleared
+ *
+ * This empties the wait_queue, dequeues the head of the wait_queue queue
+ * and calls fcoe_start_io() for each packet. If all skb have been
+ * transmitted it returns the qlen. If an error occurs it restores
+ * wait_queue (to try again later) and returns -1.
+ *
+ * The wait_queue is used when the skb transmit fails. The failed skb
+ * will go in the wait_queue which will be emptied by the timer function or
+ * by the next skb transmit.
+ */
+void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb)
+{
+	struct fcoe_port *port = lport_priv(lport);
+	int rc;
+
+	spin_lock_bh(&port->fcoe_pending_queue.lock);
+
+	if (skb)
+		__skb_queue_tail(&port->fcoe_pending_queue, skb);
+
+	if (port->fcoe_pending_queue_active)
+		goto out;
+	port->fcoe_pending_queue_active = 1;
+
+	while (port->fcoe_pending_queue.qlen) {
+		/* keep qlen > 0 until fcoe_start_io succeeds */
+		port->fcoe_pending_queue.qlen++;
+		skb = __skb_dequeue(&port->fcoe_pending_queue);
+
+		spin_unlock_bh(&port->fcoe_pending_queue.lock);
+		rc = fcoe_start_io(skb);
+		spin_lock_bh(&port->fcoe_pending_queue.lock);
+
+		if (rc) {
+			__skb_queue_head(&port->fcoe_pending_queue, skb);
+			/* undo temporary increment above */
+			port->fcoe_pending_queue.qlen--;
+			break;
+		}
+		/* undo temporary increment above */
+		port->fcoe_pending_queue.qlen--;
+	}
+
+	if (port->fcoe_pending_queue.qlen < port->min_queue_depth)
+		lport->qfull = 0;
+	if (port->fcoe_pending_queue.qlen && !timer_pending(&port->timer))
+		mod_timer(&port->timer, jiffies + 2);
+	port->fcoe_pending_queue_active = 0;
+out:
+	if (port->fcoe_pending_queue.qlen > port->max_queue_depth)
+		lport->qfull = 1;
+	spin_unlock_bh(&port->fcoe_pending_queue.lock);
+}
+EXPORT_SYMBOL_GPL(fcoe_check_wait_queue);
+
+/**
+ * fcoe_queue_timer() - The fcoe queue timer
+ * @lport: The local port
+ *
+ * Calls fcoe_check_wait_queue on timeout
+ */
+void fcoe_queue_timer(ulong lport)
+{
+	fcoe_check_wait_queue((struct fc_lport *)lport, NULL);
+}
+EXPORT_SYMBOL_GPL(fcoe_queue_timer);
+
+/**
+ * fcoe_get_paged_crc_eof() - Allocate a page to be used for the trailer CRC
+ * @skb:  The packet to be transmitted
+ * @tlen: The total length of the trailer
+ * @fps:  The fcoe context
+ *
+ * This routine allocates a page for frame trailers. The page is re-used if
+ * there is enough room left on it for the current trailer. If there isn't
+ * enough buffer left a new page is allocated for the trailer. Reference to
+ * the page from this function as well as the skbs using the page fragments
+ * ensure that the page is freed at the appropriate time.
+ *
+ * Returns: 0 for success
+ */
+int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
+			   struct fcoe_percpu_s *fps)
+{
+	struct page *page;
+
+	page = fps->crc_eof_page;
+	if (!page) {
+		page = alloc_page(GFP_ATOMIC);
+		if (!page)
+			return -ENOMEM;
+
+		fps->crc_eof_page = page;
+		fps->crc_eof_offset = 0;
+	}
+
+	get_page(page);
+	skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, page,
+			   fps->crc_eof_offset, tlen);
+	skb->len += tlen;
+	skb->data_len += tlen;
+	skb->truesize += tlen;
+	fps->crc_eof_offset += sizeof(struct fcoe_crc_eof);
+
+	if (fps->crc_eof_offset >= PAGE_SIZE) {
+		fps->crc_eof_page = NULL;
+		fps->crc_eof_offset = 0;
+		put_page(page);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(fcoe_get_paged_crc_eof);
+
+/**
+ * fcoe_transport_lookup - find an fcoe transport that matches a netdev
+ * @netdev: The netdev to look for from all attached transports
+ *
+ * Returns : ptr to the fcoe transport that supports this netdev or NULL
+ * if not found.
+ *
+ * The ft_mutex should be held when this is called
+ */
+static struct fcoe_transport *fcoe_transport_lookup(struct net_device *netdev)
+{
+	struct fcoe_transport *ft = NULL;
+
+	list_for_each_entry(ft, &fcoe_transports, list)
+		if (ft->match && ft->match(netdev))
+			return ft;
+	return NULL;
+}
+
+/**
+ * fcoe_transport_attach - Attaches an FCoE transport
+ * @ft: The fcoe transport to be attached
+ *
+ * Returns : 0 for success
+ */
+int fcoe_transport_attach(struct fcoe_transport *ft)
+{
+	int rc = 0;
+
+	mutex_lock(&ft_mutex);
+	if (ft->attached) {
+		LIBFCOE_TRANSPORT_DBG("transport %s already attached\n",
+				       ft->name);
+		rc = -EEXIST;
+		goto out_attach;
+	}
+
+	/* Add default transport to the tail */
+	if (strcmp(ft->name, FCOE_TRANSPORT_DEFAULT))
+		list_add(&ft->list, &fcoe_transports);
+	else
+		list_add_tail(&ft->list, &fcoe_transports);
+
+	ft->attached = true;
+	LIBFCOE_TRANSPORT_DBG("attaching transport %s\n", ft->name);
+
+out_attach:
+	mutex_unlock(&ft_mutex);
+	return rc;
+}
+EXPORT_SYMBOL(fcoe_transport_attach);
+
+/**
+ * fcoe_transport_attach - Detaches an FCoE transport
+ * @ft: The fcoe transport to be attached
+ *
+ * Returns : 0 for success
+ */
+int fcoe_transport_detach(struct fcoe_transport *ft)
+{
+	int rc = 0;
+
+	mutex_lock(&ft_mutex);
+	if (!ft->attached) {
+		LIBFCOE_TRANSPORT_DBG("transport %s already detached\n",
+			ft->name);
+		rc = -ENODEV;
+		goto out_attach;
+	}
+
+	list_del(&ft->list);
+	ft->attached = false;
+	LIBFCOE_TRANSPORT_DBG("detaching transport %s\n", ft->name);
+
+out_attach:
+	mutex_unlock(&ft_mutex);
+	return rc;
+
+}
+EXPORT_SYMBOL(fcoe_transport_detach);
+
+static int fcoe_transport_show(char *buffer, const struct kernel_param *kp)
+{
+	int i, j;
+	struct fcoe_transport *ft = NULL;
+
+	i = j = sprintf(buffer, "Attached FCoE transports:");
+	mutex_lock(&ft_mutex);
+	list_for_each_entry(ft, &fcoe_transports, list) {
+		i += snprintf(&buffer[i], IFNAMSIZ, "%s ", ft->name);
+		if (i >= PAGE_SIZE)
+			break;
+	}
+	mutex_unlock(&ft_mutex);
+	if (i == j)
+		i += snprintf(&buffer[i], IFNAMSIZ, "none");
+	return i;
+}
+
+static int __init fcoe_transport_init(void)
+{
+	register_netdevice_notifier(&libfcoe_notifier);
+	return 0;
+}
+
+static int __exit fcoe_transport_exit(void)
+{
+	struct fcoe_transport *ft;
+
+	unregister_netdevice_notifier(&libfcoe_notifier);
+	mutex_lock(&ft_mutex);
+	list_for_each_entry(ft, &fcoe_transports, list)
+		printk(KERN_ERR "FCoE transport %s is still attached!\n",
+		      ft->name);
+	mutex_unlock(&ft_mutex);
+	return 0;
+}
+
+
+static int fcoe_add_netdev_mapping(struct net_device *netdev,
+					struct fcoe_transport *ft)
+{
+	struct fcoe_netdev_mapping *nm;
+
+	nm = kmalloc(sizeof(*nm), GFP_KERNEL);
+	if (!nm) {
+		printk(KERN_ERR "Unable to allocate netdev_mapping");
+		return -ENOMEM;
+	}
+
+	nm->netdev = netdev;
+	nm->ft = ft;
+
+	mutex_lock(&fn_mutex);
+	list_add(&nm->list, &fcoe_netdevs);
+	mutex_unlock(&fn_mutex);
+	return 0;
+}
+
+
+static void fcoe_del_netdev_mapping(struct net_device *netdev)
+{
+	struct fcoe_netdev_mapping *nm = NULL, *tmp;
+
+	mutex_lock(&fn_mutex);
+	list_for_each_entry_safe(nm, tmp, &fcoe_netdevs, list) {
+		if (nm->netdev == netdev) {
+			list_del(&nm->list);
+			kfree(nm);
+			mutex_unlock(&fn_mutex);
+			return;
+		}
+	}
+	mutex_unlock(&fn_mutex);
+}
+
+
+/**
+ * fcoe_netdev_map_lookup - find the fcoe transport that matches the netdev on which
+ * it was created
+ *
+ * Returns : ptr to the fcoe transport that supports this netdev or NULL
+ * if not found.
+ *
+ * The ft_mutex should be held when this is called
+ */
+static struct fcoe_transport *fcoe_netdev_map_lookup(struct net_device *netdev)
+{
+	struct fcoe_transport *ft = NULL;
+	struct fcoe_netdev_mapping *nm;
+
+	mutex_lock(&fn_mutex);
+	list_for_each_entry(nm, &fcoe_netdevs, list) {
+		if (netdev == nm->netdev) {
+			ft = nm->ft;
+			mutex_unlock(&fn_mutex);
+			return ft;
+		}
+	}
+
+	mutex_unlock(&fn_mutex);
+	return NULL;
+}
+
+/**
+ * fcoe_if_to_netdev() - Parse a name buffer to get a net device
+ * @buffer: The name of the net device
+ *
+ * Returns: NULL or a ptr to net_device
+ */
+static struct net_device *fcoe_if_to_netdev(const char *buffer)
+{
+	char *cp;
+	char ifname[IFNAMSIZ + 2];
+
+	if (buffer) {
+		strlcpy(ifname, buffer, IFNAMSIZ);
+		cp = ifname + strlen(ifname);
+		while (--cp >= ifname && *cp == '\n')
+			*cp = '\0';
+		return dev_get_by_name(&init_net, ifname);
+	}
+	return NULL;
+}
+
+/**
+ * libfcoe_device_notification() - Handler for net device events
+ * @notifier: The context of the notification
+ * @event:    The type of event
+ * @ptr:      The net device that the event was on
+ *
+ * This function is called by the Ethernet driver in case of link change event.
+ *
+ * Returns: 0 for success
+ */
+static int libfcoe_device_notification(struct notifier_block *notifier,
+				    ulong event, void *ptr)
+{
+	struct net_device *netdev = ptr;
+
+	switch (event) {
+	case NETDEV_UNREGISTER:
+		printk(KERN_ERR "libfcoe_device_notification: NETDEV_UNREGISTER %s\n",
+				netdev->name);
+		fcoe_del_netdev_mapping(netdev);
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+
+/**
+ * fcoe_transport_create() - Create a fcoe interface
+ * @buffer: The name of the Ethernet interface to create on
+ * @kp:	    The associated kernel param
+ *
+ * Called from sysfs. This holds the ft_mutex while calling the
+ * registered fcoe transport's create function.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_create(const char *buffer, struct kernel_param *kp)
+{
+	int rc = -ENODEV;
+	struct net_device *netdev = NULL;
+	struct fcoe_transport *ft = NULL;
+	enum fip_state fip_mode = (enum fip_state)(long)kp->arg;
+
+	if (!mutex_trylock(&ft_mutex))
+		return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+	/*
+	 * Make sure the module has been initialized, and is not about to be
+	 * removed.  Module parameter sysfs files are writable before the
+	 * module_init function is called and after module_exit.
+	 */
+	if (THIS_MODULE->state != MODULE_STATE_LIVE)
+		goto out_nodev;
+#endif
+
+	netdev = fcoe_if_to_netdev(buffer);
+	if (!netdev) {
+		LIBFCOE_TRANSPORT_DBG("Invalid device %s.\n", buffer);
+		goto out_nodev;
+	}
+
+	ft = fcoe_netdev_map_lookup(netdev);
+	if (ft) {
+		LIBFCOE_TRANSPORT_DBG("transport %s already has existing "
+				      "FCoE instance on %s.\n",
+				      ft->name, netdev->name);
+		rc = -EEXIST;
+		goto out_putdev;
+	}
+
+	ft = fcoe_transport_lookup(netdev);
+	if (!ft) {
+		LIBFCOE_TRANSPORT_DBG("no FCoE transport found for %s.\n",
+				      netdev->name);
+		goto out_putdev;
+	}
+
+	rc = fcoe_add_netdev_mapping(netdev, ft);
+	if (rc) {
+		LIBFCOE_TRANSPORT_DBG("failed to add new netdev mapping "
+				      "for FCoE transport %s for %s.\n",
+				      ft->name, netdev->name);
+		goto out_putdev;
+	}
+
+	/* pass to transport create */
+	rc = ft->create ? ft->create(netdev, fip_mode) : -ENODEV;
+	if (rc)
+		fcoe_del_netdev_mapping(netdev);
+
+	LIBFCOE_TRANSPORT_DBG("transport %s %s to create fcoe on %s.\n",
+			      ft->name, (rc) ? "failed" : "succeeded",
+			      netdev->name);
+
+out_putdev:
+	dev_put(netdev);
+out_nodev:
+	mutex_unlock(&ft_mutex);
+	if (rc == -ERESTARTSYS)
+		return restart_syscall();
+	else
+		return rc;
+}
+
+/**
+ * fcoe_transport_destroy() - Destroy a FCoE interface
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp:	    The associated kernel parameter
+ *
+ * Called from sysfs. This holds the ft_mutex while calling the
+ * registered fcoe transport's destroy function.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_destroy(const char *buffer, struct kernel_param *kp)
+{
+	int rc = -ENODEV;
+	struct net_device *netdev = NULL;
+	struct fcoe_transport *ft = NULL;
+
+	if (!mutex_trylock(&ft_mutex))
+		return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+	/*
+	 * Make sure the module has been initialized, and is not about to be
+	 * removed.  Module parameter sysfs files are writable before the
+	 * module_init function is called and after module_exit.
+	 */
+	if (THIS_MODULE->state != MODULE_STATE_LIVE)
+		goto out_nodev;
+#endif
+
+	netdev = fcoe_if_to_netdev(buffer);
+	if (!netdev) {
+		LIBFCOE_TRANSPORT_DBG("invalid device %s.\n", buffer);
+		goto out_nodev;
+	}
+
+	ft = fcoe_netdev_map_lookup(netdev);
+	if (!ft) {
+		LIBFCOE_TRANSPORT_DBG("no FCoE transport found for %s.\n",
+				      netdev->name);
+		goto out_putdev;
+	}
+
+	/* pass to transport destroy */
+	rc = ft->destroy ? ft->destroy(netdev) : -ENODEV;
+	fcoe_del_netdev_mapping(netdev);
+	LIBFCOE_TRANSPORT_DBG("transport %s %s to destroy fcoe on %s.\n",
+			      ft->name, (rc) ? "failed" : "succeeded",
+			      netdev->name);
+
+out_putdev:
+	dev_put(netdev);
+out_nodev:
+	mutex_unlock(&ft_mutex);
+
+	if (rc == -ERESTARTSYS)
+		return restart_syscall();
+	else
+		return rc;
+}
+
+/**
+ * fcoe_transport_disable() - Disables a FCoE interface
+ * @buffer: The name of the Ethernet interface to be disabled
+ * @kp:	    The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_disable(const char *buffer, struct kernel_param *kp)
+{
+	int rc = -ENODEV;
+	struct net_device *netdev = NULL;
+	struct fcoe_transport *ft = NULL;
+
+	if (!mutex_trylock(&ft_mutex))
+		return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+	/*
+	 * Make sure the module has been initialized, and is not about to be
+	 * removed.  Module parameter sysfs files are writable before the
+	 * module_init function is called and after module_exit.
+	 */
+	if (THIS_MODULE->state != MODULE_STATE_LIVE)
+		goto out_nodev;
+#endif
+
+	netdev = fcoe_if_to_netdev(buffer);
+	if (!netdev)
+		goto out_nodev;
+
+	ft = fcoe_netdev_map_lookup(netdev);
+	if (!ft)
+		goto out_putdev;
+
+	rc = ft->disable ? ft->disable(netdev) : -ENODEV;
+
+out_putdev:
+	dev_put(netdev);
+out_nodev:
+	mutex_unlock(&ft_mutex);
+
+	if (rc == -ERESTARTSYS)
+		return restart_syscall();
+	else
+		return rc;
+}
+
+/**
+ * fcoe_transport_enable() - Enables a FCoE interface
+ * @buffer: The name of the Ethernet interface to be enabled
+ * @kp:     The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int fcoe_transport_enable(const char *buffer, struct kernel_param *kp)
+{
+	int rc = -ENODEV;
+	struct net_device *netdev = NULL;
+	struct fcoe_transport *ft = NULL;
+
+	if (!mutex_trylock(&ft_mutex))
+		return restart_syscall();
+
+#ifdef CONFIG_LIBFCOE_MODULE
+	/*
+	 * Make sure the module has been initialized, and is not about to be
+	 * removed.  Module parameter sysfs files are writable before the
+	 * module_init function is called and after module_exit.
+	 */
+	if (THIS_MODULE->state != MODULE_STATE_LIVE)
+		goto out_nodev;
+#endif
+
+	netdev = fcoe_if_to_netdev(buffer);
+	if (!netdev)
+		goto out_nodev;
+
+	ft = fcoe_netdev_map_lookup(netdev);
+	if (!ft)
+		goto out_putdev;
+
+	rc = ft->enable ? ft->enable(netdev) : -ENODEV;
+
+out_putdev:
+	dev_put(netdev);
+out_nodev:
+	mutex_unlock(&ft_mutex);
+	if (rc == -ERESTARTSYS)
+		return restart_syscall();
+	else
+		return rc;
+}
+
+/**
+ * libfcoe_init() - Initialization routine for libfcoe.ko
+ */
+static int __init libfcoe_init(void)
+{
+	fcoe_transport_init();
+
+	return 0;
+}
+module_init(libfcoe_init);
+
+/**
+ * libfcoe_exit() - Tear down libfcoe.ko
+ */
+static void __exit libfcoe_exit(void)
+{
+	fcoe_transport_exit();
+}
+module_exit(libfcoe_exit);

drivers/scsi/fcoe/libfcoe.h

@@ -0,0 +1,31 @@
+#ifndef _FCOE_LIBFCOE_H_
+#define _FCOE_LIBFCOE_H_
+
+extern unsigned int libfcoe_debug_logging;
+#define LIBFCOE_LOGGING	    0x01 /* General logging, not categorized */
+#define LIBFCOE_FIP_LOGGING 0x02 /* FIP logging */
+#define LIBFCOE_TRANSPORT_LOGGING	0x04 /* FCoE transport logging */
+
+#define LIBFCOE_CHECK_LOGGING(LEVEL, CMD)		\
+do {							\
+	if (unlikely(libfcoe_debug_logging & LEVEL))	\
+		do {					\
+			CMD;				\
+		} while (0);				\
+} while (0)
+
+#define LIBFCOE_DBG(fmt, args...)					\
+	LIBFCOE_CHECK_LOGGING(LIBFCOE_LOGGING,				\
+			      printk(KERN_INFO "libfcoe: " fmt, ##args);)
+
+#define LIBFCOE_FIP_DBG(fip, fmt, args...)				\
+	LIBFCOE_CHECK_LOGGING(LIBFCOE_FIP_LOGGING,			\
+			      printk(KERN_INFO "host%d: fip: " fmt,	\
+				     (fip)->lp->host->host_no, ##args);)
+
+#define LIBFCOE_TRANSPORT_DBG(fmt, args...)				\
+	LIBFCOE_CHECK_LOGGING(LIBFCOE_TRANSPORT_LOGGING,		\
+			      printk(KERN_INFO "%s: " fmt,		\
+				     __func__, ##args);)
+
+#endif /* _FCOE_LIBFCOE_H_ */

drivers/scsi/fnic/fnic.h

@@ -37,7 +37,7 @@
 
 #define DRV_NAME		"fnic"
 #define DRV_DESCRIPTION		"Cisco FCoE HBA Driver"
-#define DRV_VERSION		"1.4.0.145"
+#define DRV_VERSION		"1.5.0.1"
 #define PFX			DRV_NAME ": "
 #define DFX                     DRV_NAME "%d: "
 

drivers/scsi/fnic/vnic_dev.c

@@ -654,7 +654,7 @@ void vnic_dev_unregister(struct vnic_dev *vdev)
 				vdev->linkstatus_pa);
 		if (vdev->stats)
 			pci_free_consistent(vdev->pdev,
-				sizeof(struct vnic_dev),
+				sizeof(struct vnic_stats),
 				vdev->stats, vdev->stats_pa);
 		if (vdev->fw_info)
 			pci_free_consistent(vdev->pdev,

drivers/scsi/hpsa.c

@@ -74,6 +74,10 @@ static int hpsa_allow_any;
 module_param(hpsa_allow_any, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(hpsa_allow_any,
 		"Allow hpsa driver to access unknown HP Smart Array hardware");
+static int hpsa_simple_mode;
+module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(hpsa_simple_mode,
+	"Use 'simple mode' rather than 'performant mode'");
 
 /* define the PCI info for the cards we can control */
 static const struct pci_device_id hpsa_pci_device_id[] = {
@@ -85,11 +89,13 @@ static const struct pci_device_id hpsa_pci_device_id[] = {
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x324a},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x324b},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x3233},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x3250},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x3251},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x3252},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x3253},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSE,     0x103C, 0x3254},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3350},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3351},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3352},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3353},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3354},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3355},
+	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3356},
 	{PCI_VENDOR_ID_HP,     PCI_ANY_ID,	PCI_ANY_ID, PCI_ANY_ID,
 		PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
 	{0,}
@@ -109,11 +115,13 @@ static struct board_type products[] = {
 	{0x3249103C, "Smart Array P812", &SA5_access},
 	{0x324a103C, "Smart Array P712m", &SA5_access},
 	{0x324b103C, "Smart Array P711m", &SA5_access},
-	{0x3250103C, "Smart Array", &SA5_access},
-	{0x3250113C, "Smart Array", &SA5_access},
-	{0x3250123C, "Smart Array", &SA5_access},
-	{0x3250133C, "Smart Array", &SA5_access},
-	{0x3250143C, "Smart Array", &SA5_access},
+	{0x3350103C, "Smart Array", &SA5_access},
+	{0x3351103C, "Smart Array", &SA5_access},
+	{0x3352103C, "Smart Array", &SA5_access},
+	{0x3353103C, "Smart Array", &SA5_access},
+	{0x3354103C, "Smart Array", &SA5_access},
+	{0x3355103C, "Smart Array", &SA5_access},
+	{0x3356103C, "Smart Array", &SA5_access},
 	{0xFFFF103C, "Unknown Smart Array", &SA5_access},
 };
 
@@ -147,17 +155,7 @@ static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd);
 static int hpsa_slave_alloc(struct scsi_device *sdev);
 static void hpsa_slave_destroy(struct scsi_device *sdev);
 
-static ssize_t raid_level_show(struct device *dev,
-	struct device_attribute *attr, char *buf);
-static ssize_t lunid_show(struct device *dev,
-	struct device_attribute *attr, char *buf);
-static ssize_t unique_id_show(struct device *dev,
-	struct device_attribute *attr, char *buf);
-static ssize_t host_show_firmware_revision(struct device *dev,
-	     struct device_attribute *attr, char *buf);
 static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
-static ssize_t host_store_rescan(struct device *dev,
-	 struct device_attribute *attr, const char *buf, size_t count);
 static int check_for_unit_attention(struct ctlr_info *h,
 	struct CommandList *c);
 static void check_ioctl_unit_attention(struct ctlr_info *h,
@@ -173,47 +171,10 @@ static int __devinit hpsa_find_cfg_addrs(struct pci_dev *pdev,
 static int __devinit hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
 	unsigned long *memory_bar);
 static int __devinit hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id);
-
-static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
-static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
-static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
-static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
-static DEVICE_ATTR(firmware_revision, S_IRUGO,
-	host_show_firmware_revision, NULL);
-
-static struct device_attribute *hpsa_sdev_attrs[] = {
-	&dev_attr_raid_level,
-	&dev_attr_lunid,
-	&dev_attr_unique_id,
-	NULL,
-};
-
-static struct device_attribute *hpsa_shost_attrs[] = {
-	&dev_attr_rescan,
-	&dev_attr_firmware_revision,
-	NULL,
-};
-
-static struct scsi_host_template hpsa_driver_template = {
-	.module			= THIS_MODULE,
-	.name			= "hpsa",
-	.proc_name		= "hpsa",
-	.queuecommand		= hpsa_scsi_queue_command,
-	.scan_start		= hpsa_scan_start,
-	.scan_finished		= hpsa_scan_finished,
-	.change_queue_depth	= hpsa_change_queue_depth,
-	.this_id		= -1,
-	.use_clustering		= ENABLE_CLUSTERING,
-	.eh_device_reset_handler = hpsa_eh_device_reset_handler,
-	.ioctl			= hpsa_ioctl,
-	.slave_alloc		= hpsa_slave_alloc,
-	.slave_destroy		= hpsa_slave_destroy,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl		= hpsa_compat_ioctl,
-#endif
-	.sdev_attrs = hpsa_sdev_attrs,
-	.shost_attrs = hpsa_shost_attrs,
-};
+static int __devinit hpsa_wait_for_board_state(struct pci_dev *pdev,
+	void __iomem *vaddr, int wait_for_ready);
+#define BOARD_NOT_READY 0
+#define BOARD_READY 1
 
 static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
 {
@@ -291,67 +252,63 @@ static ssize_t host_show_firmware_revision(struct device *dev,
 		fwrev[0], fwrev[1], fwrev[2], fwrev[3]);
 }
 
-/* Enqueuing and dequeuing functions for cmdlists. */
-static inline void addQ(struct hlist_head *list, struct CommandList *c)
+static ssize_t host_show_commands_outstanding(struct device *dev,
+	     struct device_attribute *attr, char *buf)
 {
-	hlist_add_head(&c->list, list);
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct ctlr_info *h = shost_to_hba(shost);
+
+	return snprintf(buf, 20, "%d\n", h->commands_outstanding);
 }
 
-static inline u32 next_command(struct ctlr_info *h)
+static ssize_t host_show_transport_mode(struct device *dev,
+	struct device_attribute *attr, char *buf)
 {
-	u32 a;
-
-	if (unlikely(h->transMethod != CFGTBL_Trans_Performant))
-		return h->access.command_completed(h);
+	struct ctlr_info *h;
+	struct Scsi_Host *shost = class_to_shost(dev);
 
-	if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
-		a = *(h->reply_pool_head); /* Next cmd in ring buffer */
-		(h->reply_pool_head)++;
-		h->commands_outstanding--;
-	} else {
-		a = FIFO_EMPTY;
-	}
-	/* Check for wraparound */
-	if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
-		h->reply_pool_head = h->reply_pool;
-		h->reply_pool_wraparound ^= 1;
-	}
-	return a;
+	h = shost_to_hba(shost);
+	return snprintf(buf, 20, "%s\n",
+		h->transMethod & CFGTBL_Trans_Performant ?
+			"performant" : "simple");
 }
 
-/* set_performant_mode: Modify the tag for cciss performant
- * set bit 0 for pull model, bits 3-1 for block fetch
- * register number
- */
-static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
-{
-	if (likely(h->transMethod == CFGTBL_Trans_Performant))
-		c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
-}
+/* List of controllers which cannot be reset on kexec with reset_devices */
+static u32 unresettable_controller[] = {
+	0x324a103C, /* Smart Array P712m */
+	0x324b103C, /* SmartArray P711m */
+	0x3223103C, /* Smart Array P800 */
+	0x3234103C, /* Smart Array P400 */
+	0x3235103C, /* Smart Array P400i */
+	0x3211103C, /* Smart Array E200i */
+	0x3212103C, /* Smart Array E200 */
+	0x3213103C, /* Smart Array E200i */
+	0x3214103C, /* Smart Array E200i */
+	0x3215103C, /* Smart Array E200i */
+	0x3237103C, /* Smart Array E500 */
+	0x323D103C, /* Smart Array P700m */
+	0x409C0E11, /* Smart Array 6400 */
+	0x409D0E11, /* Smart Array 6400 EM */
+};
 
-static void enqueue_cmd_and_start_io(struct ctlr_info *h,
-	struct CommandList *c)
+static int ctlr_is_resettable(struct ctlr_info *h)
 {
-	unsigned long flags;
+	int i;
 
-	set_performant_mode(h, c);
-	spin_lock_irqsave(&h->lock, flags);
-	addQ(&h->reqQ, c);
-	h->Qdepth++;
-	start_io(h);
-	spin_unlock_irqrestore(&h->lock, flags);
+	for (i = 0; i < ARRAY_SIZE(unresettable_controller); i++)
+		if (unresettable_controller[i] == h->board_id)
+			return 0;
+	return 1;
 }
 
-static inline void removeQ(struct CommandList *c)
+static ssize_t host_show_resettable(struct device *dev,
+	struct device_attribute *attr, char *buf)
 {
-	if (WARN_ON(hlist_unhashed(&c->list)))
-		return;
-	hlist_del_init(&c->list);
-}
+	struct ctlr_info *h;
+	struct Scsi_Host *shost = class_to_shost(dev);
 
-static inline int is_hba_lunid(unsigned char scsi3addr[])
-{
-	return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
+	h = shost_to_hba(shost);
+	return snprintf(buf, 20, "%d\n", ctlr_is_resettable(h));
 }
 
 static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[])
@@ -359,15 +316,6 @@ static inline int is_logical_dev_addr_mode(unsigned char scsi3addr[])
 	return (scsi3addr[3] & 0xC0) == 0x40;
 }
 
-static inline int is_scsi_rev_5(struct ctlr_info *h)
-{
-	if (!h->hba_inquiry_data)
-		return 0;
-	if ((h->hba_inquiry_data[2] & 0x07) == 5)
-		return 1;
-	return 0;
-}
-
 static const char *raid_label[] = { "0", "4", "1(1+0)", "5", "5+1", "ADG",
 	"UNKNOWN"
 };
@@ -459,6 +407,129 @@ static ssize_t unique_id_show(struct device *dev,
 			sn[12], sn[13], sn[14], sn[15]);
 }
 
+static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
+static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
+static DEVICE_ATTR(unique_id, S_IRUGO, unique_id_show, NULL);
+static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
+static DEVICE_ATTR(firmware_revision, S_IRUGO,
+	host_show_firmware_revision, NULL);
+static DEVICE_ATTR(commands_outstanding, S_IRUGO,
+	host_show_commands_outstanding, NULL);
+static DEVICE_ATTR(transport_mode, S_IRUGO,
+	host_show_transport_mode, NULL);
+static DEVICE_ATTR(resettable, S_IRUGO,
+	host_show_resettable, NULL);
+
+static struct device_attribute *hpsa_sdev_attrs[] = {
+	&dev_attr_raid_level,
+	&dev_attr_lunid,
+	&dev_attr_unique_id,
+	NULL,
+};
+
+static struct device_attribute *hpsa_shost_attrs[] = {
+	&dev_attr_rescan,
+	&dev_attr_firmware_revision,
+	&dev_attr_commands_outstanding,
+	&dev_attr_transport_mode,
+	&dev_attr_resettable,
+	NULL,
+};
+
+static struct scsi_host_template hpsa_driver_template = {
+	.module			= THIS_MODULE,
+	.name			= "hpsa",
+	.proc_name		= "hpsa",
+	.queuecommand		= hpsa_scsi_queue_command,
+	.scan_start		= hpsa_scan_start,
+	.scan_finished		= hpsa_scan_finished,
+	.change_queue_depth	= hpsa_change_queue_depth,
+	.this_id		= -1,
+	.use_clustering		= ENABLE_CLUSTERING,
+	.eh_device_reset_handler = hpsa_eh_device_reset_handler,
+	.ioctl			= hpsa_ioctl,
+	.slave_alloc		= hpsa_slave_alloc,
+	.slave_destroy		= hpsa_slave_destroy,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl		= hpsa_compat_ioctl,
+#endif
+	.sdev_attrs = hpsa_sdev_attrs,
+	.shost_attrs = hpsa_shost_attrs,
+};
+
+
+/* Enqueuing and dequeuing functions for cmdlists. */
+static inline void addQ(struct list_head *list, struct CommandList *c)
+{
+	list_add_tail(&c->list, list);
+}
+
+static inline u32 next_command(struct ctlr_info *h)
+{
+	u32 a;
+
+	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
+		return h->access.command_completed(h);
+
+	if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
+		a = *(h->reply_pool_head); /* Next cmd in ring buffer */
+		(h->reply_pool_head)++;
+		h->commands_outstanding--;
+	} else {
+		a = FIFO_EMPTY;
+	}
+	/* Check for wraparound */
+	if (h->reply_pool_head == (h->reply_pool + h->max_commands)) {
+		h->reply_pool_head = h->reply_pool;
+		h->reply_pool_wraparound ^= 1;
+	}
+	return a;
+}
+
+/* set_performant_mode: Modify the tag for cciss performant
+ * set bit 0 for pull model, bits 3-1 for block fetch
+ * register number
+ */
+static void set_performant_mode(struct ctlr_info *h, struct CommandList *c)
+{
+	if (likely(h->transMethod & CFGTBL_Trans_Performant))
+		c->busaddr |= 1 | (h->blockFetchTable[c->Header.SGList] << 1);
+}
+
+static void enqueue_cmd_and_start_io(struct ctlr_info *h,
+	struct CommandList *c)
+{
+	unsigned long flags;
+
+	set_performant_mode(h, c);
+	spin_lock_irqsave(&h->lock, flags);
+	addQ(&h->reqQ, c);
+	h->Qdepth++;
+	start_io(h);
+	spin_unlock_irqrestore(&h->lock, flags);
+}
+
+static inline void removeQ(struct CommandList *c)
+{
+	if (WARN_ON(list_empty(&c->list)))
+		return;
+	list_del_init(&c->list);
+}
+
+static inline int is_hba_lunid(unsigned char scsi3addr[])
+{
+	return memcmp(scsi3addr, RAID_CTLR_LUNID, 8) == 0;
+}
+
+static inline int is_scsi_rev_5(struct ctlr_info *h)
+{
+	if (!h->hba_inquiry_data)
+		return 0;
+	if ((h->hba_inquiry_data[2] & 0x07) == 5)
+		return 1;
+	return 0;
+}
+
 static int hpsa_find_target_lun(struct ctlr_info *h,
 	unsigned char scsi3addr[], int bus, int *target, int *lun)
 {
@@ -1130,6 +1201,10 @@ static void complete_scsi_command(struct CommandList *cp,
 		cmd->result = DID_TIME_OUT << 16;
 		dev_warn(&h->pdev->dev, "cp %p timedout\n", cp);
 		break;
+	case CMD_UNABORTABLE:
+		cmd->result = DID_ERROR << 16;
+		dev_warn(&h->pdev->dev, "Command unabortable\n");
+		break;
 	default:
 		cmd->result = DID_ERROR << 16;
 		dev_warn(&h->pdev->dev, "cp %p returned unknown status %x\n",
@@ -1160,7 +1235,7 @@ static int hpsa_scsi_detect(struct ctlr_info *h)
 	sh->sg_tablesize = h->maxsgentries;
 	h->scsi_host = sh;
 	sh->hostdata[0] = (unsigned long) h;
-	sh->irq = h->intr[PERF_MODE_INT];
+	sh->irq = h->intr[h->intr_mode];
 	sh->unique_id = sh->irq;
 	error = scsi_add_host(sh, &h->pdev->dev);
 	if (error)
@@ -1295,6 +1370,9 @@ static void hpsa_scsi_interpret_error(struct CommandList *cp)
 	case CMD_TIMEOUT:
 		dev_warn(d, "cp %p timed out\n", cp);
 		break;
+	case CMD_UNABORTABLE:
+		dev_warn(d, "Command unabortable\n");
+		break;
 	default:
 		dev_warn(d, "cp %p returned unknown status %x\n", cp,
 				ei->CommandStatus);
@@ -1595,6 +1673,8 @@ static int add_msa2xxx_enclosure_device(struct ctlr_info *h,
 	if (lun == 0) /* if lun is 0, then obviously we have a lun 0. */
 		return 0;
 
+	memset(scsi3addr, 0, 8);
+	scsi3addr[3] = target;
 	if (is_hba_lunid(scsi3addr))
 		return 0; /* Don't add the RAID controller here. */
 
@@ -1609,8 +1689,6 @@ static int add_msa2xxx_enclosure_device(struct ctlr_info *h,
 		return 0;
 	}
 
-	memset(scsi3addr, 0, 8);
-	scsi3addr[3] = target;
 	if (hpsa_update_device_info(h, scsi3addr, this_device))
 		return 0;
 	(*nmsa2xxx_enclosures)++;
@@ -2199,7 +2277,7 @@ static struct CommandList *cmd_alloc(struct ctlr_info *h)
 
 	c->cmdindex = i;
 
-	INIT_HLIST_NODE(&c->list);
+	INIT_LIST_HEAD(&c->list);
 	c->busaddr = (u32) cmd_dma_handle;
 	temp64.val = (u64) err_dma_handle;
 	c->ErrDesc.Addr.lower = temp64.val32.lower;
@@ -2237,7 +2315,7 @@ static struct CommandList *cmd_special_alloc(struct ctlr_info *h)
 	}
 	memset(c->err_info, 0, sizeof(*c->err_info));
 
-	INIT_HLIST_NODE(&c->list);
+	INIT_LIST_HEAD(&c->list);
 	c->busaddr = (u32) cmd_dma_handle;
 	temp64.val = (u64) err_dma_handle;
 	c->ErrDesc.Addr.lower = temp64.val32.lower;
@@ -2267,7 +2345,7 @@ static void cmd_special_free(struct ctlr_info *h, struct CommandList *c)
 	pci_free_consistent(h->pdev, sizeof(*c->err_info),
 			    c->err_info, (dma_addr_t) temp64.val);
 	pci_free_consistent(h->pdev, sizeof(*c),
-			    c, (dma_addr_t) c->busaddr);
+			    c, (dma_addr_t) (c->busaddr & DIRECT_LOOKUP_MASK));
 }
 
 #ifdef CONFIG_COMPAT
@@ -2281,6 +2359,7 @@ static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg)
 	int err;
 	u32 cp;
 
+	memset(&arg64, 0, sizeof(arg64));
 	err = 0;
 	err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
 			   sizeof(arg64.LUN_info));
@@ -2317,6 +2396,7 @@ static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
 	int err;
 	u32 cp;
 
+	memset(&arg64, 0, sizeof(arg64));
 	err = 0;
 	err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
 			   sizeof(arg64.LUN_info));
@@ -2433,15 +2513,17 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 		buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
 		if (buff == NULL)
 			return -EFAULT;
-	}
-	if (iocommand.Request.Type.Direction == XFER_WRITE) {
-		/* Copy the data into the buffer we created */
-		if (copy_from_user(buff, iocommand.buf, iocommand.buf_size)) {
-			kfree(buff);
-			return -EFAULT;
+		if (iocommand.Request.Type.Direction == XFER_WRITE) {
+			/* Copy the data into the buffer we created */
+			if (copy_from_user(buff, iocommand.buf,
+				iocommand.buf_size)) {
+				kfree(buff);
+				return -EFAULT;
+			}
+		} else {
+			memset(buff, 0, iocommand.buf_size);
 		}
-	} else
-		memset(buff, 0, iocommand.buf_size);
+	}
 	c = cmd_special_alloc(h);
 	if (c == NULL) {
 		kfree(buff);
@@ -2487,8 +2569,8 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 		cmd_special_free(h, c);
 		return -EFAULT;
 	}
-
-	if (iocommand.Request.Type.Direction == XFER_READ) {
+	if (iocommand.Request.Type.Direction == XFER_READ &&
+		iocommand.buf_size > 0) {
 		/* Copy the data out of the buffer we created */
 		if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
 			kfree(buff);
@@ -2581,14 +2663,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 	}
 	c->cmd_type = CMD_IOCTL_PEND;
 	c->Header.ReplyQueue = 0;
-
-	if (ioc->buf_size > 0) {
-		c->Header.SGList = sg_used;
-		c->Header.SGTotal = sg_used;
-	} else {
-		c->Header.SGList = 0;
-		c->Header.SGTotal = 0;
-	}
+	c->Header.SGList = c->Header.SGTotal = sg_used;
 	memcpy(&c->Header.LUN, &ioc->LUN_info, sizeof(c->Header.LUN));
 	c->Header.Tag.lower = c->busaddr;
 	memcpy(&c->Request, &ioc->Request, sizeof(c->Request));
@@ -2605,7 +2680,8 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 		}
 	}
 	hpsa_scsi_do_simple_cmd_core(h, c);
-	hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
+	if (sg_used)
+		hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
 	check_ioctl_unit_attention(h, c);
 	/* Copy the error information out */
 	memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
@@ -2614,7 +2690,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 		status = -EFAULT;
 		goto cleanup1;
 	}
-	if (ioc->Request.Type.Direction == XFER_READ) {
+	if (ioc->Request.Type.Direction == XFER_READ && ioc->buf_size > 0) {
 		/* Copy the data out of the buffer we created */
 		BYTE __user *ptr = ioc->buf;
 		for (i = 0; i < sg_used; i++) {
@@ -2810,8 +2886,8 @@ static void start_io(struct ctlr_info *h)
 {
 	struct CommandList *c;
 
-	while (!hlist_empty(&h->reqQ)) {
-		c = hlist_entry(h->reqQ.first, struct CommandList, list);
+	while (!list_empty(&h->reqQ)) {
+		c = list_entry(h->reqQ.next, struct CommandList, list);
 		/* can't do anything if fifo is full */
 		if ((h->access.fifo_full(h))) {
 			dev_warn(&h->pdev->dev, "fifo full\n");
@@ -2867,20 +2943,22 @@ static inline void finish_cmd(struct CommandList *c, u32 raw_tag)
 
 static inline u32 hpsa_tag_contains_index(u32 tag)
 {
-#define DIRECT_LOOKUP_BIT 0x10
 	return tag & DIRECT_LOOKUP_BIT;
 }
 
 static inline u32 hpsa_tag_to_index(u32 tag)
 {
-#define DIRECT_LOOKUP_SHIFT 5
 	return tag >> DIRECT_LOOKUP_SHIFT;
 }
 
-static inline u32 hpsa_tag_discard_error_bits(u32 tag)
+
+static inline u32 hpsa_tag_discard_error_bits(struct ctlr_info *h, u32 tag)
 {
-#define HPSA_ERROR_BITS 0x03
-	return tag & ~HPSA_ERROR_BITS;
+#define HPSA_PERF_ERROR_BITS ((1 << DIRECT_LOOKUP_SHIFT) - 1)
+#define HPSA_SIMPLE_ERROR_BITS 0x03
+	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
+		return tag & ~HPSA_SIMPLE_ERROR_BITS;
+	return tag & ~HPSA_PERF_ERROR_BITS;
 }
 
 /* process completion of an indexed ("direct lookup") command */
@@ -2904,10 +2982,9 @@ static inline u32 process_nonindexed_cmd(struct ctlr_info *h,
 {
 	u32 tag;
 	struct CommandList *c = NULL;
-	struct hlist_node *tmp;
 
-	tag = hpsa_tag_discard_error_bits(raw_tag);
-	hlist_for_each_entry(c, tmp, &h->cmpQ, list) {
+	tag = hpsa_tag_discard_error_bits(h, raw_tag);
+	list_for_each_entry(c, &h->cmpQ, list) {
 		if ((c->busaddr & 0xFFFFFFE0) == (tag & 0xFFFFFFE0)) {
 			finish_cmd(c, raw_tag);
 			return next_command(h);
@@ -2957,7 +3034,10 @@ static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-/* Send a message CDB to the firmware. */
+/* Send a message CDB to the firmware. Careful, this only works
+ * in simple mode, not performant mode due to the tag lookup.
+ * We only ever use this immediately after a controller reset.
+ */
 static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
 						unsigned char type)
 {
@@ -3023,7 +3103,7 @@ static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
 
 	for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) {
 		tag = readl(vaddr + SA5_REPLY_PORT_OFFSET);
-		if (hpsa_tag_discard_error_bits(tag) == paddr32)
+		if ((tag & ~HPSA_SIMPLE_ERROR_BITS) == paddr32)
 			break;
 		msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS);
 	}
@@ -3055,38 +3135,6 @@ static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode,
 #define hpsa_soft_reset_controller(p) hpsa_message(p, 1, 0)
 #define hpsa_noop(p) hpsa_message(p, 3, 0)
 
-static __devinit int hpsa_reset_msi(struct pci_dev *pdev)
-{
-/* the #defines are stolen from drivers/pci/msi.h. */
-#define msi_control_reg(base)		(base + PCI_MSI_FLAGS)
-#define PCI_MSIX_FLAGS_ENABLE		(1 << 15)
-
-	int pos;
-	u16 control = 0;
-
-	pos = pci_find_capability(pdev, PCI_CAP_ID_MSI);
-	if (pos) {
-		pci_read_config_word(pdev, msi_control_reg(pos), &control);
-		if (control & PCI_MSI_FLAGS_ENABLE) {
-			dev_info(&pdev->dev, "resetting MSI\n");
-			pci_write_config_word(pdev, msi_control_reg(pos),
-					control & ~PCI_MSI_FLAGS_ENABLE);
-		}
-	}
-
-	pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
-	if (pos) {
-		pci_read_config_word(pdev, msi_control_reg(pos), &control);
-		if (control & PCI_MSIX_FLAGS_ENABLE) {
-			dev_info(&pdev->dev, "resetting MSI-X\n");
-			pci_write_config_word(pdev, msi_control_reg(pos),
-					control & ~PCI_MSIX_FLAGS_ENABLE);
-		}
-	}
-
-	return 0;
-}
-
 static int hpsa_controller_hard_reset(struct pci_dev *pdev,
 	void * __iomem vaddr, bool use_doorbell)
 {
@@ -3142,17 +3190,17 @@ static int hpsa_controller_hard_reset(struct pci_dev *pdev,
  */
 static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
 {
-	u16 saved_config_space[32];
 	u64 cfg_offset;
 	u32 cfg_base_addr;
 	u64 cfg_base_addr_index;
 	void __iomem *vaddr;
 	unsigned long paddr;
 	u32 misc_fw_support, active_transport;
-	int rc, i;
+	int rc;
 	struct CfgTable __iomem *cfgtable;
 	bool use_doorbell;
 	u32 board_id;
+	u16 command_register;
 
 	/* For controllers as old as the P600, this is very nearly
 	 * the same thing as
@@ -3162,14 +3210,6 @@ static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
 	 * pci_set_power_state(pci_dev, PCI_D0);
 	 * pci_restore_state(pci_dev);
 	 *
-	 * but we can't use these nice canned kernel routines on
-	 * kexec, because they also check the MSI/MSI-X state in PCI
-	 * configuration space and do the wrong thing when it is
-	 * set/cleared.  Also, the pci_save/restore_state functions
-	 * violate the ordering requirements for restoring the
-	 * configuration space from the CCISS document (see the
-	 * comment below).  So we roll our own ....
-	 *
 	 * For controllers newer than the P600, the pci power state
 	 * method of resetting doesn't work so we have another way
 	 * using the doorbell register.
@@ -3182,13 +3222,21 @@ static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
 	 * likely not be happy.  Just forbid resetting this conjoined mess.
 	 * The 640x isn't really supported by hpsa anyway.
 	 */
-	hpsa_lookup_board_id(pdev, &board_id);
+	rc = hpsa_lookup_board_id(pdev, &board_id);
+	if (rc < 0) {
+		dev_warn(&pdev->dev, "Not resetting device.\n");
+		return -ENODEV;
+	}
 	if (board_id == 0x409C0E11 || board_id == 0x409D0E11)
 		return -ENOTSUPP;
 
-	for (i = 0; i < 32; i++)
-		pci_read_config_word(pdev, 2*i, &saved_config_space[i]);
-
+	/* Save the PCI command register */
+	pci_read_config_word(pdev, 4, &command_register);
+	/* Turn the board off.  This is so that later pci_restore_state()
+	 * won't turn the board on before the rest of config space is ready.
+	 */
+	pci_disable_device(pdev);
+	pci_save_state(pdev);
 
 	/* find the first memory BAR, so we can find the cfg table */
 	rc = hpsa_pci_find_memory_BAR(pdev, &paddr);
@@ -3214,46 +3262,47 @@ static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
 	misc_fw_support = readl(&cfgtable->misc_fw_support);
 	use_doorbell = misc_fw_support & MISC_FW_DOORBELL_RESET;
 
-	/* The doorbell reset seems to cause lockups on some Smart
-	 * Arrays (e.g. P410, P410i, maybe others).  Until this is
-	 * fixed or at least isolated, avoid the doorbell reset.
-	 */
-	use_doorbell = 0;
-
 	rc = hpsa_controller_hard_reset(pdev, vaddr, use_doorbell);
 	if (rc)
 		goto unmap_cfgtable;
 
-	/* Restore the PCI configuration space.  The Open CISS
-	 * Specification says, "Restore the PCI Configuration
-	 * Registers, offsets 00h through 60h. It is important to
-	 * restore the command register, 16-bits at offset 04h,
-	 * last. Do not restore the configuration status register,
-	 * 16-bits at offset 06h."  Note that the offset is 2*i.
-	 */
-	for (i = 0; i < 32; i++) {
-		if (i == 2 || i == 3)
-			continue;
-		pci_write_config_word(pdev, 2*i, saved_config_space[i]);
+	pci_restore_state(pdev);
+	rc = pci_enable_device(pdev);
+	if (rc) {
+		dev_warn(&pdev->dev, "failed to enable device.\n");
+		goto unmap_cfgtable;
 	}
-	wmb();
-	pci_write_config_word(pdev, 4, saved_config_space[2]);
+	pci_write_config_word(pdev, 4, command_register);
 
 	/* Some devices (notably the HP Smart Array 5i Controller)
 	   need a little pause here */
 	msleep(HPSA_POST_RESET_PAUSE_MSECS);
 
+	/* Wait for board to become not ready, then ready. */
+	dev_info(&pdev->dev, "Waiting for board to become ready.\n");
+	rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_NOT_READY);
+	if (rc)
+		dev_warn(&pdev->dev,
+			"failed waiting for board to become not ready\n");
+	rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY);
+	if (rc) {
+		dev_warn(&pdev->dev,
+			"failed waiting for board to become ready\n");
+		goto unmap_cfgtable;
+	}
+	dev_info(&pdev->dev, "board ready.\n");
+
 	/* Controller should be in simple mode at this point.  If it's not,
 	 * It means we're on one of those controllers which doesn't support
 	 * the doorbell reset method and on which the PCI power management reset
 	 * method doesn't work (P800, for example.)
-	 * In those cases, pretend the reset worked and hope for the best.
+	 * In those cases, don't try to proceed, as it generally doesn't work.
 	 */
 	active_transport = readl(&cfgtable->TransportActive);
 	if (active_transport & PERFORMANT_MODE) {
 		dev_warn(&pdev->dev, "Unable to successfully reset controller,"
-			" proceeding anyway.\n");
-		rc = -ENOTSUPP;
+			" Ignoring controller.\n");
+		rc = -ENODEV;
 	}
 
 unmap_cfgtable:
@@ -3386,7 +3435,7 @@ static void __devinit hpsa_interrupt_mode(struct ctlr_info *h)
 default_int_mode:
 #endif				/* CONFIG_PCI_MSI */
 	/* if we get here we're going to use the default interrupt mode */
-	h->intr[PERF_MODE_INT] = h->pdev->irq;
+	h->intr[h->intr_mode] = h->pdev->irq;
 }
 
 static int __devinit hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id)
@@ -3438,18 +3487,28 @@ static int __devinit hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
 	return -ENODEV;
 }
 
-static int __devinit hpsa_wait_for_board_ready(struct ctlr_info *h)
+static int __devinit hpsa_wait_for_board_state(struct pci_dev *pdev,
+	void __iomem *vaddr, int wait_for_ready)
 {
-	int i;
+	int i, iterations;
 	u32 scratchpad;
+	if (wait_for_ready)
+		iterations = HPSA_BOARD_READY_ITERATIONS;
+	else
+		iterations = HPSA_BOARD_NOT_READY_ITERATIONS;
 
-	for (i = 0; i < HPSA_BOARD_READY_ITERATIONS; i++) {
-		scratchpad = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
-		if (scratchpad == HPSA_FIRMWARE_READY)
-			return 0;
+	for (i = 0; i < iterations; i++) {
+		scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
+		if (wait_for_ready) {
+			if (scratchpad == HPSA_FIRMWARE_READY)
+				return 0;
+		} else {
+			if (scratchpad != HPSA_FIRMWARE_READY)
+				return 0;
+		}
 		msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS);
 	}
-	dev_warn(&h->pdev->dev, "board not ready, timed out.\n");
+	dev_warn(&pdev->dev, "board not ready, timed out.\n");
 	return -ENODEV;
 }
 
@@ -3497,6 +3556,11 @@ static int __devinit hpsa_find_cfgtables(struct ctlr_info *h)
 static void __devinit hpsa_get_max_perf_mode_cmds(struct ctlr_info *h)
 {
 	h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
+
+	/* Limit commands in memory limited kdump scenario. */
+	if (reset_devices && h->max_commands > 32)
+		h->max_commands = 32;
+
 	if (h->max_commands < 16) {
 		dev_warn(&h->pdev->dev, "Controller reports "
 			"max supported commands of %d, an obvious lie. "
@@ -3571,16 +3635,21 @@ static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h)
 static void __devinit hpsa_wait_for_mode_change_ack(struct ctlr_info *h)
 {
 	int i;
+	u32 doorbell_value;
+	unsigned long flags;
 
 	/* under certain very rare conditions, this can take awhile.
 	 * (e.g.: hot replace a failed 144GB drive in a RAID 5 set right
 	 * as we enter this code.)
 	 */
 	for (i = 0; i < MAX_CONFIG_WAIT; i++) {
-		if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+		spin_lock_irqsave(&h->lock, flags);
+		doorbell_value = readl(h->vaddr + SA5_DOORBELL);
+		spin_unlock_irqrestore(&h->lock, flags);
+		if (!(doorbell_value & CFGTBL_ChangeReq))
 			break;
 		/* delay and try again */
-		msleep(10);
+		usleep_range(10000, 20000);
 	}
 }
 
@@ -3603,6 +3672,7 @@ static int __devinit hpsa_enter_simple_mode(struct ctlr_info *h)
 			"unable to get board into simple mode\n");
 		return -ENODEV;
 	}
+	h->transMethod = CFGTBL_Trans_Simple;
 	return 0;
 }
 
@@ -3641,7 +3711,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
 		err = -ENOMEM;
 		goto err_out_free_res;
 	}
-	err = hpsa_wait_for_board_ready(h);
+	err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
 	if (err)
 		goto err_out_free_res;
 	err = hpsa_find_cfgtables(h);
@@ -3710,8 +3780,6 @@ static __devinit int hpsa_init_reset_devices(struct pci_dev *pdev)
 		return 0; /* just try to do the kdump anyhow. */
 	if (rc)
 		return -ENODEV;
-	if (hpsa_reset_msi(pdev))
-		return -ENODEV;
 
 	/* Now try to get the controller to respond to a no-op */
 	for (i = 0; i < HPSA_POST_RESET_NOOP_RETRIES; i++) {
@@ -3749,8 +3817,11 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
 
 	h->pdev = pdev;
 	h->busy_initializing = 1;
-	INIT_HLIST_HEAD(&h->cmpQ);
-	INIT_HLIST_HEAD(&h->reqQ);
+	h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT;
+	INIT_LIST_HEAD(&h->cmpQ);
+	INIT_LIST_HEAD(&h->reqQ);
+	spin_lock_init(&h->lock);
+	spin_lock_init(&h->scan_lock);
 	rc = hpsa_pci_init(h);
 	if (rc != 0)
 		goto clean1;
@@ -3777,20 +3848,20 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
 	h->access.set_intr_mask(h, HPSA_INTR_OFF);
 
 	if (h->msix_vector || h->msi_vector)
-		rc = request_irq(h->intr[PERF_MODE_INT], do_hpsa_intr_msi,
+		rc = request_irq(h->intr[h->intr_mode], do_hpsa_intr_msi,
 				IRQF_DISABLED, h->devname, h);
 	else
-		rc = request_irq(h->intr[PERF_MODE_INT], do_hpsa_intr_intx,
+		rc = request_irq(h->intr[h->intr_mode], do_hpsa_intr_intx,
 				IRQF_DISABLED, h->devname, h);
 	if (rc) {
 		dev_err(&pdev->dev, "unable to get irq %d for %s\n",
-		       h->intr[PERF_MODE_INT], h->devname);
+		       h->intr[h->intr_mode], h->devname);
 		goto clean2;
 	}
 
 	dev_info(&pdev->dev, "%s: <0x%x> at IRQ %d%s using DAC\n",
 	       h->devname, pdev->device,
-	       h->intr[PERF_MODE_INT], dac ? "" : " not");
+	       h->intr[h->intr_mode], dac ? "" : " not");
 
 	h->cmd_pool_bits =
 	    kmalloc(((h->nr_cmds + BITS_PER_LONG -
@@ -3810,8 +3881,6 @@ static int __devinit hpsa_init_one(struct pci_dev *pdev,
 	}
 	if (hpsa_allocate_sg_chain_blocks(h))
 		goto clean4;
-	spin_lock_init(&h->lock);
-	spin_lock_init(&h->scan_lock);
 	init_waitqueue_head(&h->scan_wait_queue);
 	h->scan_finished = 1; /* no scan currently in progress */
 
@@ -3843,7 +3912,7 @@ clean4:
 			    h->nr_cmds * sizeof(struct ErrorInfo),
 			    h->errinfo_pool,
 			    h->errinfo_pool_dhandle);
-	free_irq(h->intr[PERF_MODE_INT], h);
+	free_irq(h->intr[h->intr_mode], h);
 clean2:
 clean1:
 	h->busy_initializing = 0;
@@ -3887,7 +3956,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
 	 */
 	hpsa_flush_cache(h);
 	h->access.set_intr_mask(h, HPSA_INTR_OFF);
-	free_irq(h->intr[PERF_MODE_INT], h);
+	free_irq(h->intr[h->intr_mode], h);
 #ifdef CONFIG_PCI_MSI
 	if (h->msix_vector)
 		pci_disable_msix(h->pdev);
@@ -3989,7 +4058,8 @@ static void  calc_bucket_map(int bucket[], int num_buckets,
 	}
 }
 
-static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h)
+static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h,
+	u32 use_short_tags)
 {
 	int i;
 	unsigned long register_value;
@@ -4037,7 +4107,7 @@ static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h)
 	writel(0, &h->transtable->RepQCtrAddrHigh32);
 	writel(h->reply_pool_dhandle, &h->transtable->RepQAddr0Low32);
 	writel(0, &h->transtable->RepQAddr0High32);
-	writel(CFGTBL_Trans_Performant,
+	writel(CFGTBL_Trans_Performant | use_short_tags,
 		&(h->cfgtable->HostWrite.TransportRequest));
 	writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
 	hpsa_wait_for_mode_change_ack(h);
@@ -4047,12 +4117,18 @@ static __devinit void hpsa_enter_performant_mode(struct ctlr_info *h)
 					" performant mode\n");
 		return;
 	}
+	/* Change the access methods to the performant access methods */
+	h->access = SA5_performant_access;
+	h->transMethod = CFGTBL_Trans_Performant;
 }
 
 static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
 {
 	u32 trans_support;
 
+	if (hpsa_simple_mode)
+		return;
+
 	trans_support = readl(&(h->cfgtable->TransportSupport));
 	if (!(trans_support & PERFORMANT_MODE))
 		return;
@@ -4072,11 +4148,8 @@ static __devinit void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h)
 		|| (h->blockFetchTable == NULL))
 		goto clean_up;
 
-	hpsa_enter_performant_mode(h);
-
-	/* Change the access methods to the performant access methods */
-	h->access = SA5_performant_access;
-	h->transMethod = CFGTBL_Trans_Performant;
+	hpsa_enter_performant_mode(h,
+		trans_support & CFGTBL_Trans_use_short_tags);
 
 	return;
 

drivers/scsi/hpsa.h

@@ -72,11 +72,12 @@ struct ctlr_info {
 	unsigned int intr[4];
 	unsigned int msix_vector;
 	unsigned int msi_vector;
+	int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
 	struct access_method access;
 
 	/* queue and queue Info */
-	struct hlist_head reqQ;
-	struct hlist_head cmpQ;
+	struct list_head reqQ;
+	struct list_head cmpQ;
 	unsigned int Qdepth;
 	unsigned int maxQsinceinit;
 	unsigned int maxSG;
@@ -154,12 +155,16 @@ struct ctlr_info {
  * HPSA_BOARD_READY_ITERATIONS are derived from those.
  */
 #define HPSA_BOARD_READY_WAIT_SECS (120)
+#define HPSA_BOARD_NOT_READY_WAIT_SECS (10)
 #define HPSA_BOARD_READY_POLL_INTERVAL_MSECS (100)
 #define HPSA_BOARD_READY_POLL_INTERVAL \
 	((HPSA_BOARD_READY_POLL_INTERVAL_MSECS * HZ) / 1000)
 #define HPSA_BOARD_READY_ITERATIONS \
 	((HPSA_BOARD_READY_WAIT_SECS * 1000) / \
 		HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
+#define HPSA_BOARD_NOT_READY_ITERATIONS \
+	((HPSA_BOARD_NOT_READY_WAIT_SECS * 1000) / \
+		HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
 #define HPSA_POST_RESET_PAUSE_MSECS (3000)
 #define HPSA_POST_RESET_NOOP_RETRIES (12)
 

drivers/scsi/hpsa_cmd.h

@@ -104,6 +104,7 @@
 
 #define CFGTBL_Trans_Simple     0x00000002l
 #define CFGTBL_Trans_Performant 0x00000004l
+#define CFGTBL_Trans_use_short_tags 0x20000000l
 
 #define CFGTBL_BusType_Ultra2   0x00000001l
 #define CFGTBL_BusType_Ultra3   0x00000002l
@@ -265,6 +266,7 @@ struct ErrorInfo {
 
 #define DIRECT_LOOKUP_SHIFT 5
 #define DIRECT_LOOKUP_BIT 0x10
+#define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
 
 #define HPSA_ERROR_BIT          0x02
 struct ctlr_info; /* defined in hpsa.h */
@@ -291,7 +293,7 @@ struct CommandList {
 	struct ctlr_info	   *h;
 	int			   cmd_type;
 	long			   cmdindex;
-	struct hlist_node list;
+	struct list_head list;
 	struct request *rq;
 	struct completion *waiting;
 	void   *scsi_cmd;

drivers/scsi/ipr.c

@@ -1301,7 +1301,7 @@ static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
 			ipr_clear_res_target(res);
 			list_move_tail(&res->queue, &ioa_cfg->free_res_q);
 		}
-	} else if (!res->sdev) {
+	} else if (!res->sdev || res->del_from_ml) {
 		res->add_to_ml = 1;
 		if (ioa_cfg->allow_ml_add_del)
 			schedule_work(&ioa_cfg->work_q);
@@ -3104,7 +3104,10 @@ restart:
 				did_work = 1;
 				sdev = res->sdev;
 				if (!scsi_device_get(sdev)) {
-					list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+					if (!res->add_to_ml)
+						list_move_tail(&res->queue, &ioa_cfg->free_res_q);
+					else
+						res->del_from_ml = 0;
 					spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 					scsi_remove_device(sdev);
 					scsi_device_put(sdev);
@@ -8864,7 +8867,7 @@ static void __ipr_remove(struct pci_dev *pdev)
 
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
 	wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
-	flush_scheduled_work();
+	flush_work_sync(&ioa_cfg->work_q);
 	spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
 
 	spin_lock(&ipr_driver_lock);

drivers/scsi/iscsi_tcp.c

@@ -608,54 +608,12 @@ static void iscsi_sw_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
 	iscsi_sw_tcp_release_conn(conn);
 }
 
-static int iscsi_sw_tcp_get_addr(struct iscsi_conn *conn, struct socket *sock,
-				 char *buf, int *port,
-				 int (*getname)(struct socket *,
-						struct sockaddr *,
-						int *addrlen))
-{
-	struct sockaddr_storage *addr;
-	struct sockaddr_in6 *sin6;
-	struct sockaddr_in *sin;
-	int rc = 0, len;
-
-	addr = kmalloc(sizeof(*addr), GFP_KERNEL);
-	if (!addr)
-		return -ENOMEM;
-
-	if (getname(sock, (struct sockaddr *) addr, &len)) {
-		rc = -ENODEV;
-		goto free_addr;
-	}
-
-	switch (addr->ss_family) {
-	case AF_INET:
-		sin = (struct sockaddr_in *)addr;
-		spin_lock_bh(&conn->session->lock);
-		sprintf(buf, "%pI4", &sin->sin_addr.s_addr);
-		*port = be16_to_cpu(sin->sin_port);
-		spin_unlock_bh(&conn->session->lock);
-		break;
-	case AF_INET6:
-		sin6 = (struct sockaddr_in6 *)addr;
-		spin_lock_bh(&conn->session->lock);
-		sprintf(buf, "%pI6", &sin6->sin6_addr);
-		*port = be16_to_cpu(sin6->sin6_port);
-		spin_unlock_bh(&conn->session->lock);
-		break;
-	}
-free_addr:
-	kfree(addr);
-	return rc;
-}
-
 static int
 iscsi_sw_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 		       struct iscsi_cls_conn *cls_conn, uint64_t transport_eph,
 		       int is_leading)
 {
-	struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
-	struct iscsi_host *ihost = shost_priv(shost);
+	struct iscsi_session *session = cls_session->dd_data;
 	struct iscsi_conn *conn = cls_conn->dd_data;
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
@@ -670,27 +628,15 @@ iscsi_sw_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 				  "sockfd_lookup failed %d\n", err);
 		return -EEXIST;
 	}
-	/*
-	 * copy these values now because if we drop the session
-	 * userspace may still want to query the values since we will
-	 * be using them for the reconnect
-	 */
-	err = iscsi_sw_tcp_get_addr(conn, sock, conn->portal_address,
-				    &conn->portal_port, kernel_getpeername);
-	if (err)
-		goto free_socket;
-
-	err = iscsi_sw_tcp_get_addr(conn, sock, ihost->local_address,
-				    &ihost->local_port, kernel_getsockname);
-	if (err)
-		goto free_socket;
 
 	err = iscsi_conn_bind(cls_session, cls_conn, is_leading);
 	if (err)
 		goto free_socket;
 
+	spin_lock_bh(&session->lock);
 	/* bind iSCSI connection and socket */
 	tcp_sw_conn->sock = sock;
+	spin_unlock_bh(&session->lock);
 
 	/* setup Socket parameters */
 	sk = sock->sk;
@@ -752,24 +698,74 @@ static int iscsi_sw_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn,
 				       enum iscsi_param param, char *buf)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
-	int len;
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+	struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
+	struct sockaddr_in6 addr;
+	int rc, len;
 
 	switch(param) {
 	case ISCSI_PARAM_CONN_PORT:
-		spin_lock_bh(&conn->session->lock);
-		len = sprintf(buf, "%hu\n", conn->portal_port);
-		spin_unlock_bh(&conn->session->lock);
-		break;
 	case ISCSI_PARAM_CONN_ADDRESS:
 		spin_lock_bh(&conn->session->lock);
-		len = sprintf(buf, "%s\n", conn->portal_address);
+		if (!tcp_sw_conn || !tcp_sw_conn->sock) {
+			spin_unlock_bh(&conn->session->lock);
+			return -ENOTCONN;
+		}
+		rc = kernel_getpeername(tcp_sw_conn->sock,
+					(struct sockaddr *)&addr, &len);
 		spin_unlock_bh(&conn->session->lock);
-		break;
+		if (rc)
+			return rc;
+
+		return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+						 &addr, param, buf);
 	default:
 		return iscsi_conn_get_param(cls_conn, param, buf);
 	}
 
-	return len;
+	return 0;
+}
+
+static int iscsi_sw_tcp_host_get_param(struct Scsi_Host *shost,
+				       enum iscsi_host_param param, char *buf)
+{
+	struct iscsi_sw_tcp_host *tcp_sw_host = iscsi_host_priv(shost);
+	struct iscsi_session *session = tcp_sw_host->session;
+	struct iscsi_conn *conn;
+	struct iscsi_tcp_conn *tcp_conn;
+	struct iscsi_sw_tcp_conn *tcp_sw_conn;
+	struct sockaddr_in6 addr;
+	int rc, len;
+
+	switch (param) {
+	case ISCSI_HOST_PARAM_IPADDRESS:
+		spin_lock_bh(&session->lock);
+		conn = session->leadconn;
+		if (!conn) {
+			spin_unlock_bh(&session->lock);
+			return -ENOTCONN;
+		}
+		tcp_conn = conn->dd_data;
+
+		tcp_sw_conn = tcp_conn->dd_data;
+		if (!tcp_sw_conn->sock) {
+			spin_unlock_bh(&session->lock);
+			return -ENOTCONN;
+		}
+
+		rc = kernel_getsockname(tcp_sw_conn->sock,
+					(struct sockaddr *)&addr, &len);
+		spin_unlock_bh(&session->lock);
+		if (rc)
+			return rc;
+
+		return iscsi_conn_get_addr_param((struct sockaddr_storage *)
+						 &addr, param, buf);
+	default:
+		return iscsi_host_get_param(shost, param, buf);
+	}
+
+	return 0;
 }
 
 static void
@@ -797,6 +793,7 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
 {
 	struct iscsi_cls_session *cls_session;
 	struct iscsi_session *session;
+	struct iscsi_sw_tcp_host *tcp_sw_host;
 	struct Scsi_Host *shost;
 
 	if (ep) {
@@ -804,7 +801,8 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
 		return NULL;
 	}
 
-	shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, 1);
+	shost = iscsi_host_alloc(&iscsi_sw_tcp_sht,
+				 sizeof(struct iscsi_sw_tcp_host), 1);
 	if (!shost)
 		return NULL;
 	shost->transportt = iscsi_sw_tcp_scsi_transport;
@@ -825,6 +823,8 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
 	if (!cls_session)
 		goto remove_host;
 	session = cls_session->dd_data;
+	tcp_sw_host = iscsi_host_priv(shost);
+	tcp_sw_host->session = session;
 
 	shost->can_queue = session->scsi_cmds_max;
 	if (iscsi_tcp_r2tpool_alloc(session))
@@ -929,7 +929,7 @@ static struct iscsi_transport iscsi_sw_tcp_transport = {
 	.start_conn		= iscsi_conn_start,
 	.stop_conn		= iscsi_sw_tcp_conn_stop,
 	/* iscsi host params */
-	.get_host_param		= iscsi_host_get_param,
+	.get_host_param		= iscsi_sw_tcp_host_get_param,
 	.set_host_param		= iscsi_host_set_param,
 	/* IO */
 	.send_pdu		= iscsi_conn_send_pdu,

drivers/scsi/iscsi_tcp.h

@@ -55,6 +55,10 @@ struct iscsi_sw_tcp_conn {
 	ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
 };
 
+struct iscsi_sw_tcp_host {
+	struct iscsi_session	*session;
+};
+
 struct iscsi_sw_tcp_hdrbuf {
 	struct iscsi_hdr	hdrbuf;
 	char			hdrextbuf[ISCSI_MAX_AHS_SIZE +

drivers/scsi/libfc/fc_exch.c

@@ -38,7 +38,7 @@ u16	fc_cpu_mask;		/* cpu mask for possible cpus */
 EXPORT_SYMBOL(fc_cpu_mask);
 static u16	fc_cpu_order;	/* 2's power to represent total possible cpus */
 static struct kmem_cache *fc_em_cachep;	       /* cache for exchanges */
-struct workqueue_struct *fc_exch_workqueue;
+static struct workqueue_struct *fc_exch_workqueue;
 
 /*
  * Structure and function definitions for managing Fibre Channel Exchanges
@@ -558,6 +558,22 @@ static struct fc_seq *fc_seq_start_next(struct fc_seq *sp)
 	return sp;
 }
 
+/*
+ * Set the response handler for the exchange associated with a sequence.
+ */
+static void fc_seq_set_resp(struct fc_seq *sp,
+			    void (*resp)(struct fc_seq *, struct fc_frame *,
+					 void *),
+			    void *arg)
+{
+	struct fc_exch *ep = fc_seq_exch(sp);
+
+	spin_lock_bh(&ep->ex_lock);
+	ep->resp = resp;
+	ep->arg = arg;
+	spin_unlock_bh(&ep->ex_lock);
+}
+
 /**
  * fc_seq_exch_abort() - Abort an exchange and sequence
  * @req_sp:	The sequence to be aborted
@@ -650,13 +666,10 @@ static void fc_exch_timeout(struct work_struct *work)
 		if (e_stat & ESB_ST_ABNORMAL)
 			rc = fc_exch_done_locked(ep);
 		spin_unlock_bh(&ep->ex_lock);
+		if (!rc)
+			fc_exch_delete(ep);
 		if (resp)
 			resp(sp, ERR_PTR(-FC_EX_TIMEOUT), arg);
-		if (!rc) {
-			/* delete the exchange if it's already being aborted */
-			fc_exch_delete(ep);
-			return;
-		}
 		fc_seq_exch_abort(sp, 2 * ep->r_a_tov);
 		goto done;
 	}
@@ -1266,6 +1279,8 @@ free:
  * @fp:    The request frame
  *
  * On success, the sequence pointer will be returned and also in fr_seq(@fp).
+ * A reference will be held on the exchange/sequence for the caller, which
+ * must call fc_seq_release().
  */
 static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)
 {
@@ -1282,6 +1297,15 @@ static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)
 	return fr_seq(fp);
 }
 
+/**
+ * fc_seq_release() - Release the hold
+ * @sp:    The sequence.
+ */
+static void fc_seq_release(struct fc_seq *sp)
+{
+	fc_exch_release(fc_seq_exch(sp));
+}
+
 /**
  * fc_exch_recv_req() - Handler for an incoming request
  * @lport: The local port that received the request
@@ -2151,6 +2175,7 @@ err:
 		fc_exch_mgr_del(ema);
 	return -ENOMEM;
 }
+EXPORT_SYMBOL(fc_exch_mgr_list_clone);
 
 /**
  * fc_exch_mgr_alloc() - Allocate an exchange manager
@@ -2253,17 +2278,46 @@ void fc_exch_mgr_free(struct fc_lport *lport)
 }
 EXPORT_SYMBOL(fc_exch_mgr_free);
 
+/**
+ * fc_find_ema() - Lookup and return appropriate Exchange Manager Anchor depending
+ * upon 'xid'.
+ * @f_ctl: f_ctl
+ * @lport: The local port the frame was received on
+ * @fh: The received frame header
+ */
+static struct fc_exch_mgr_anchor *fc_find_ema(u32 f_ctl,
+					      struct fc_lport *lport,
+					      struct fc_frame_header *fh)
+{
+	struct fc_exch_mgr_anchor *ema;
+	u16 xid;
+
+	if (f_ctl & FC_FC_EX_CTX)
+		xid = ntohs(fh->fh_ox_id);
+	else {
+		xid = ntohs(fh->fh_rx_id);
+		if (xid == FC_XID_UNKNOWN)
+			return list_entry(lport->ema_list.prev,
+					  typeof(*ema), ema_list);
+	}
+
+	list_for_each_entry(ema, &lport->ema_list, ema_list) {
+		if ((xid >= ema->mp->min_xid) &&
+		    (xid <= ema->mp->max_xid))
+			return ema;
+	}
+	return NULL;
+}
 /**
  * fc_exch_recv() - Handler for received frames
  * @lport: The local port the frame was received on
- * @fp:	   The received frame
+ * @fp:	The received frame
  */
 void fc_exch_recv(struct fc_lport *lport, struct fc_frame *fp)
 {
 	struct fc_frame_header *fh = fc_frame_header_get(fp);
 	struct fc_exch_mgr_anchor *ema;
-	u32 f_ctl, found = 0;
-	u16 oxid;
+	u32 f_ctl;
 
 	/* lport lock ? */
 	if (!lport || lport->state == LPORT_ST_DISABLED) {
@@ -2274,24 +2328,17 @@ void fc_exch_recv(struct fc_lport *lport, struct fc_frame *fp)
 	}
 
 	f_ctl = ntoh24(fh->fh_f_ctl);
-	oxid = ntohs(fh->fh_ox_id);
-	if (f_ctl & FC_FC_EX_CTX) {
-		list_for_each_entry(ema, &lport->ema_list, ema_list) {
-			if ((oxid >= ema->mp->min_xid) &&
-			    (oxid <= ema->mp->max_xid)) {
-				found = 1;
-				break;
-			}
-		}
-
-		if (!found) {
-			FC_LPORT_DBG(lport, "Received response for out "
-				     "of range oxid:%hx\n", oxid);
-			fc_frame_free(fp);
-			return;
-		}
-	} else
-		ema = list_entry(lport->ema_list.prev, typeof(*ema), ema_list);
+	ema = fc_find_ema(f_ctl, lport, fh);
+	if (!ema) {
+		FC_LPORT_DBG(lport, "Unable to find Exchange Manager Anchor,"
+				    "fc_ctl <0x%x>, xid <0x%x>\n",
+				     f_ctl,
+				     (f_ctl & FC_FC_EX_CTX) ?
+				     ntohs(fh->fh_ox_id) :
+				     ntohs(fh->fh_rx_id));
+		fc_frame_free(fp);
+		return;
+	}
 
 	/*
 	 * If frame is marked invalid, just drop it.
@@ -2329,6 +2376,9 @@ int fc_exch_init(struct fc_lport *lport)
 	if (!lport->tt.seq_start_next)
 		lport->tt.seq_start_next = fc_seq_start_next;
 
+	if (!lport->tt.seq_set_resp)
+		lport->tt.seq_set_resp = fc_seq_set_resp;
+
 	if (!lport->tt.exch_seq_send)
 		lport->tt.exch_seq_send = fc_exch_seq_send;
 
@@ -2350,6 +2400,9 @@ int fc_exch_init(struct fc_lport *lport)
 	if (!lport->tt.seq_assign)
 		lport->tt.seq_assign = fc_seq_assign;
 
+	if (!lport->tt.seq_release)
+		lport->tt.seq_release = fc_seq_release;
+
 	return 0;
 }
 EXPORT_SYMBOL(fc_exch_init);
@@ -2357,7 +2410,7 @@ EXPORT_SYMBOL(fc_exch_init);
 /**
  * fc_setup_exch_mgr() - Setup an exchange manager
  */
-int fc_setup_exch_mgr()
+int fc_setup_exch_mgr(void)
 {
 	fc_em_cachep = kmem_cache_create("libfc_em", sizeof(struct fc_exch),
 					 0, SLAB_HWCACHE_ALIGN, NULL);
@@ -2395,7 +2448,7 @@ int fc_setup_exch_mgr()
 /**
  * fc_destroy_exch_mgr() - Destroy an exchange manager
  */
-void fc_destroy_exch_mgr()
+void fc_destroy_exch_mgr(void)
 {
 	destroy_workqueue(fc_exch_workqueue);
 	kmem_cache_destroy(fc_em_cachep);

drivers/scsi/libfc/fc_fcp.c

@@ -42,7 +42,7 @@
 
 #include "fc_libfc.h"
 
-struct kmem_cache *scsi_pkt_cachep;
+static struct kmem_cache *scsi_pkt_cachep;
 
 /* SRB state definitions */
 #define FC_SRB_FREE		0		/* cmd is free */
@@ -155,6 +155,7 @@ static struct fc_fcp_pkt *fc_fcp_pkt_alloc(struct fc_lport *lport, gfp_t gfp)
 	if (fsp) {
 		memset(fsp, 0, sizeof(*fsp));
 		fsp->lp = lport;
+		fsp->xfer_ddp = FC_XID_UNKNOWN;
 		atomic_set(&fsp->ref_cnt, 1);
 		init_timer(&fsp->timer);
 		INIT_LIST_HEAD(&fsp->list);
@@ -1201,6 +1202,7 @@ unlock:
 static int fc_fcp_pkt_abort(struct fc_fcp_pkt *fsp)
 {
 	int rc = FAILED;
+	unsigned long ticks_left;
 
 	if (fc_fcp_send_abort(fsp))
 		return FAILED;
@@ -1209,13 +1211,13 @@ static int fc_fcp_pkt_abort(struct fc_fcp_pkt *fsp)
 	fsp->wait_for_comp = 1;
 
 	spin_unlock_bh(&fsp->scsi_pkt_lock);
-	rc = wait_for_completion_timeout(&fsp->tm_done, FC_SCSI_TM_TOV);
+	ticks_left = wait_for_completion_timeout(&fsp->tm_done,
+							FC_SCSI_TM_TOV);
 	spin_lock_bh(&fsp->scsi_pkt_lock);
 	fsp->wait_for_comp = 0;
 
-	if (!rc) {
+	if (!ticks_left) {
 		FC_FCP_DBG(fsp, "target abort cmd  failed\n");
-		rc = FAILED;
 	} else if (fsp->state & FC_SRB_ABORTED) {
 		FC_FCP_DBG(fsp, "target abort cmd  passed\n");
 		rc = SUCCESS;
@@ -1321,7 +1323,7 @@ static void fc_tm_done(struct fc_seq *seq, struct fc_frame *fp, void *arg)
 		 *
 		 * scsi-eh will escalate for when either happens.
 		 */
-		goto out;
+		return;
 	}
 
 	if (fc_fcp_lock_pkt(fsp))
@@ -1787,15 +1789,14 @@ static inline int fc_fcp_lport_queue_ready(struct fc_lport *lport)
 
 /**
  * fc_queuecommand() - The queuecommand function of the SCSI template
+ * @shost: The Scsi_Host that the command was issued to
  * @cmd:   The scsi_cmnd to be executed
- * @done:  The callback function to be called when the scsi_cmnd is complete
  *
- * This is the i/o strategy routine, called by the SCSI layer. This routine
- * is called with the host_lock held.
+ * This is the i/o strategy routine, called by the SCSI layer.
  */
-static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scsi_cmnd *))
+int fc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc_cmd)
 {
-	struct fc_lport *lport;
+	struct fc_lport *lport = shost_priv(shost);
 	struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
 	struct fc_fcp_pkt *fsp;
 	struct fc_rport_libfc_priv *rpriv;
@@ -1803,15 +1804,12 @@ static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scs
 	int rc = 0;
 	struct fcoe_dev_stats *stats;
 
-	lport = shost_priv(sc_cmd->device->host);
-
 	rval = fc_remote_port_chkready(rport);
 	if (rval) {
 		sc_cmd->result = rval;
-		done(sc_cmd);
+		sc_cmd->scsi_done(sc_cmd);
 		return 0;
 	}
-	spin_unlock_irq(lport->host->host_lock);
 
 	if (!*(struct fc_remote_port **)rport->dd_data) {
 		/*
@@ -1819,7 +1817,7 @@ static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scs
 		 * online
 		 */
 		sc_cmd->result = DID_IMM_RETRY << 16;
-		done(sc_cmd);
+		sc_cmd->scsi_done(sc_cmd);
 		goto out;
 	}
 
@@ -1842,10 +1840,7 @@ static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scs
 	 * build the libfc request pkt
 	 */
 	fsp->cmd = sc_cmd;	/* save the cmd */
-	fsp->lp = lport;	/* save the softc ptr */
 	fsp->rport = rport;	/* set the remote port ptr */
-	fsp->xfer_ddp = FC_XID_UNKNOWN;
-	sc_cmd->scsi_done = done;
 
 	/*
 	 * set up the transfer length
@@ -1886,11 +1881,8 @@ static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scs
 		rc = SCSI_MLQUEUE_HOST_BUSY;
 	}
 out:
-	spin_lock_irq(lport->host->host_lock);
 	return rc;
 }
-
-DEF_SCSI_QCMD(fc_queuecommand)
 EXPORT_SYMBOL(fc_queuecommand);
 
 /**
@@ -2112,7 +2104,6 @@ int fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
 	 * the sc passed in is not setup for execution like when sent
 	 * through the queuecommand callout.
 	 */
-	fsp->lp = lport;	/* save the softc ptr */
 	fsp->rport = rport;	/* set the remote port ptr */
 
 	/*
@@ -2245,7 +2236,7 @@ void fc_fcp_destroy(struct fc_lport *lport)
 }
 EXPORT_SYMBOL(fc_fcp_destroy);
 
-int fc_setup_fcp()
+int fc_setup_fcp(void)
 {
 	int rc = 0;
 
@@ -2261,7 +2252,7 @@ int fc_setup_fcp()
 	return rc;
 }
 
-void fc_destroy_fcp()
+void fc_destroy_fcp(void)
 {
 	if (scsi_pkt_cachep)
 		kmem_cache_destroy(scsi_pkt_cachep);

drivers/scsi/libfc/fc_libfc.c

@@ -35,6 +35,27 @@ unsigned int fc_debug_logging;
 module_param_named(debug_logging, fc_debug_logging, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
 
+DEFINE_MUTEX(fc_prov_mutex);
+static LIST_HEAD(fc_local_ports);
+struct blocking_notifier_head fc_lport_notifier_head =
+		BLOCKING_NOTIFIER_INIT(fc_lport_notifier_head);
+EXPORT_SYMBOL(fc_lport_notifier_head);
+
+/*
+ * Providers which primarily send requests and PRLIs.
+ */
+struct fc4_prov *fc_active_prov[FC_FC4_PROV_SIZE] = {
+	[0] = &fc_rport_t0_prov,
+	[FC_TYPE_FCP] = &fc_rport_fcp_init,
+};
+
+/*
+ * Providers which receive requests.
+ */
+struct fc4_prov *fc_passive_prov[FC_FC4_PROV_SIZE] = {
+	[FC_TYPE_ELS] = &fc_lport_els_prov,
+};
+
 /**
  * libfc_init() - Initialize libfc.ko
  */
@@ -210,3 +231,102 @@ void fc_fill_reply_hdr(struct fc_frame *fp, const struct fc_frame *in_fp,
 	fc_fill_hdr(fp, in_fp, r_ctl, FC_FCTL_RESP, 0, parm_offset);
 }
 EXPORT_SYMBOL(fc_fill_reply_hdr);
+
+/**
+ * fc_fc4_conf_lport_params() - Modify "service_params" of specified lport
+ * if there is service provider (target provider) registered with libfc
+ * for specified "fc_ft_type"
+ * @lport: Local port which service_params needs to be modified
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ */
+void fc_fc4_conf_lport_params(struct fc_lport *lport, enum fc_fh_type type)
+{
+	struct fc4_prov *prov_entry;
+	BUG_ON(type >= FC_FC4_PROV_SIZE);
+	BUG_ON(!lport);
+	prov_entry = fc_passive_prov[type];
+	if (type == FC_TYPE_FCP) {
+		if (prov_entry && prov_entry->recv)
+			lport->service_params |= FCP_SPPF_TARG_FCN;
+	}
+}
+
+void fc_lport_iterate(void (*notify)(struct fc_lport *, void *), void *arg)
+{
+	struct fc_lport *lport;
+
+	mutex_lock(&fc_prov_mutex);
+	list_for_each_entry(lport, &fc_local_ports, lport_list)
+		notify(lport, arg);
+	mutex_unlock(&fc_prov_mutex);
+}
+EXPORT_SYMBOL(fc_lport_iterate);
+
+/**
+ * fc_fc4_register_provider() - register FC-4 upper-level provider.
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ * @prov: structure describing provider including ops vector.
+ *
+ * Returns 0 on success, negative error otherwise.
+ */
+int fc_fc4_register_provider(enum fc_fh_type type, struct fc4_prov *prov)
+{
+	struct fc4_prov **prov_entry;
+	int ret = 0;
+
+	if (type >= FC_FC4_PROV_SIZE)
+		return -EINVAL;
+	mutex_lock(&fc_prov_mutex);
+	prov_entry = (prov->recv ? fc_passive_prov : fc_active_prov) + type;
+	if (*prov_entry)
+		ret = -EBUSY;
+	else
+		*prov_entry = prov;
+	mutex_unlock(&fc_prov_mutex);
+	return ret;
+}
+EXPORT_SYMBOL(fc_fc4_register_provider);
+
+/**
+ * fc_fc4_deregister_provider() - deregister FC-4 upper-level provider.
+ * @type: FC-4 type, such as FC_TYPE_FCP
+ * @prov: structure describing provider including ops vector.
+ */
+void fc_fc4_deregister_provider(enum fc_fh_type type, struct fc4_prov *prov)
+{
+	BUG_ON(type >= FC_FC4_PROV_SIZE);
+	mutex_lock(&fc_prov_mutex);
+	if (prov->recv)
+		rcu_assign_pointer(fc_passive_prov[type], NULL);
+	else
+		rcu_assign_pointer(fc_active_prov[type], NULL);
+	mutex_unlock(&fc_prov_mutex);
+	synchronize_rcu();
+}
+EXPORT_SYMBOL(fc_fc4_deregister_provider);
+
+/**
+ * fc_fc4_add_lport() - add new local port to list and run notifiers.
+ * @lport:  The new local port.
+ */
+void fc_fc4_add_lport(struct fc_lport *lport)
+{
+	mutex_lock(&fc_prov_mutex);
+	list_add_tail(&lport->lport_list, &fc_local_ports);
+	blocking_notifier_call_chain(&fc_lport_notifier_head,
+				     FC_LPORT_EV_ADD, lport);
+	mutex_unlock(&fc_prov_mutex);
+}
+
+/**
+ * fc_fc4_del_lport() - remove local port from list and run notifiers.
+ * @lport:  The new local port.
+ */
+void fc_fc4_del_lport(struct fc_lport *lport)
+{
+	mutex_lock(&fc_prov_mutex);
+	list_del(&lport->lport_list);
+	blocking_notifier_call_chain(&fc_lport_notifier_head,
+				     FC_LPORT_EV_DEL, lport);
+	mutex_unlock(&fc_prov_mutex);
+}

drivers/scsi/libfc/fc_libfc.h

@@ -93,6 +93,17 @@ extern unsigned int fc_debug_logging;
 			 printk(KERN_INFO "host%u: scsi: " fmt,		\
 				(lport)->host->host_no,	##args))
 
+/*
+ * FC-4 Providers.
+ */
+extern struct fc4_prov *fc_active_prov[];	/* providers without recv */
+extern struct fc4_prov *fc_passive_prov[];	/* providers with recv */
+extern struct mutex fc_prov_mutex;		/* lock over table changes */
+
+extern struct fc4_prov fc_rport_t0_prov;	/* type 0 provider */
+extern struct fc4_prov fc_lport_els_prov;	/* ELS provider */
+extern struct fc4_prov fc_rport_fcp_init;	/* FCP initiator provider */
+
 /*
  * Set up direct-data placement for this I/O request
  */
@@ -112,6 +123,9 @@ void fc_destroy_fcp(void);
  * Internal libfc functions
  */
 const char *fc_els_resp_type(struct fc_frame *);
+extern void fc_fc4_add_lport(struct fc_lport *);
+extern void fc_fc4_del_lport(struct fc_lport *);
+extern void fc_fc4_conf_lport_params(struct fc_lport *, enum fc_fh_type);
 
 /*
  * Copies a buffer into an sg list

drivers/scsi/libfc/fc_lport.c

@@ -633,6 +633,7 @@ int fc_lport_destroy(struct fc_lport *lport)
 	lport->tt.fcp_abort_io(lport);
 	lport->tt.disc_stop_final(lport);
 	lport->tt.exch_mgr_reset(lport, 0, 0);
+	fc_fc4_del_lport(lport);
 	return 0;
 }
 EXPORT_SYMBOL(fc_lport_destroy);
@@ -849,7 +850,7 @@ out:
 }
 
 /**
- * fc_lport_recv_req() - The generic lport request handler
+ * fc_lport_recv_els_req() - The generic lport ELS request handler
  * @lport: The local port that received the request
  * @fp:	   The request frame
  *
@@ -859,9 +860,9 @@ out:
  * Locking Note: This function should not be called with the lport
  *		 lock held becuase it will grab the lock.
  */
-static void fc_lport_recv_req(struct fc_lport *lport, struct fc_frame *fp)
+static void fc_lport_recv_els_req(struct fc_lport *lport,
+				  struct fc_frame *fp)
 {
-	struct fc_frame_header *fh = fc_frame_header_get(fp);
 	void (*recv)(struct fc_lport *, struct fc_frame *);
 
 	mutex_lock(&lport->lp_mutex);
@@ -873,8 +874,7 @@ static void fc_lport_recv_req(struct fc_lport *lport, struct fc_frame *fp)
 	 */
 	if (!lport->link_up)
 		fc_frame_free(fp);
-	else if (fh->fh_type == FC_TYPE_ELS &&
-		 fh->fh_r_ctl == FC_RCTL_ELS_REQ) {
+	else {
 		/*
 		 * Check opcode.
 		 */
@@ -903,14 +903,62 @@ static void fc_lport_recv_req(struct fc_lport *lport, struct fc_frame *fp)
 		}
 
 		recv(lport, fp);
-	} else {
-		FC_LPORT_DBG(lport, "dropping invalid frame (eof %x)\n",
-			     fr_eof(fp));
-		fc_frame_free(fp);
 	}
 	mutex_unlock(&lport->lp_mutex);
 }
 
+static int fc_lport_els_prli(struct fc_rport_priv *rdata, u32 spp_len,
+			     const struct fc_els_spp *spp_in,
+			     struct fc_els_spp *spp_out)
+{
+	return FC_SPP_RESP_INVL;
+}
+
+struct fc4_prov fc_lport_els_prov = {
+	.prli = fc_lport_els_prli,
+	.recv = fc_lport_recv_els_req,
+};
+
+/**
+ * fc_lport_recv_req() - The generic lport request handler
+ * @lport: The lport that received the request
+ * @fp: The frame the request is in
+ *
+ * Locking Note: This function should not be called with the lport
+ *		 lock held becuase it may grab the lock.
+ */
+static void fc_lport_recv_req(struct fc_lport *lport,
+			      struct fc_frame *fp)
+{
+	struct fc_frame_header *fh = fc_frame_header_get(fp);
+	struct fc_seq *sp = fr_seq(fp);
+	struct fc4_prov *prov;
+
+	/*
+	 * Use RCU read lock and module_lock to be sure module doesn't
+	 * deregister and get unloaded while we're calling it.
+	 * try_module_get() is inlined and accepts a NULL parameter.
+	 * Only ELSes and FCP target ops should come through here.
+	 * The locking is unfortunate, and a better scheme is being sought.
+	 */
+
+	rcu_read_lock();
+	if (fh->fh_type >= FC_FC4_PROV_SIZE)
+		goto drop;
+	prov = rcu_dereference(fc_passive_prov[fh->fh_type]);
+	if (!prov || !try_module_get(prov->module))
+		goto drop;
+	rcu_read_unlock();
+	prov->recv(lport, fp);
+	module_put(prov->module);
+	return;
+drop:
+	rcu_read_unlock();
+	FC_LPORT_DBG(lport, "dropping unexpected frame type %x\n", fh->fh_type);
+	fc_frame_free(fp);
+	lport->tt.exch_done(sp);
+}
+
 /**
  * fc_lport_reset() - Reset a local port
  * @lport: The local port which should be reset
@@ -1542,6 +1590,7 @@ void fc_lport_enter_flogi(struct fc_lport *lport)
  */
 int fc_lport_config(struct fc_lport *lport)
 {
+	INIT_LIST_HEAD(&lport->ema_list);
 	INIT_DELAYED_WORK(&lport->retry_work, fc_lport_timeout);
 	mutex_init(&lport->lp_mutex);
 
@@ -1549,6 +1598,7 @@ int fc_lport_config(struct fc_lport *lport)
 
 	fc_lport_add_fc4_type(lport, FC_TYPE_FCP);
 	fc_lport_add_fc4_type(lport, FC_TYPE_CT);
+	fc_fc4_conf_lport_params(lport, FC_TYPE_FCP);
 
 	return 0;
 }
@@ -1586,6 +1636,7 @@ int fc_lport_init(struct fc_lport *lport)
 		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_1GBIT;
 	if (lport->link_supported_speeds & FC_PORTSPEED_10GBIT)
 		fc_host_supported_speeds(lport->host) |= FC_PORTSPEED_10GBIT;
+	fc_fc4_add_lport(lport);
 
 	return 0;
 }

drivers/scsi/libfc/fc_npiv.c

@@ -37,9 +37,7 @@ struct fc_lport *libfc_vport_create(struct fc_vport *vport, int privsize)
 
 	vn_port = libfc_host_alloc(shost->hostt, privsize);
 	if (!vn_port)
-		goto err_out;
-	if (fc_exch_mgr_list_clone(n_port, vn_port))
-		goto err_put;
+		return vn_port;
 
 	vn_port->vport = vport;
 	vport->dd_data = vn_port;
@@ -49,11 +47,6 @@ struct fc_lport *libfc_vport_create(struct fc_vport *vport, int privsize)
 	mutex_unlock(&n_port->lp_mutex);
 
 	return vn_port;
-
-err_put:
-	scsi_host_put(vn_port->host);
-err_out:
-	return NULL;
 }
 EXPORT_SYMBOL(libfc_vport_create);
 
@@ -86,6 +79,7 @@ struct fc_lport *fc_vport_id_lookup(struct fc_lport *n_port, u32 port_id)
 
 	return lport;
 }
+EXPORT_SYMBOL(fc_vport_id_lookup);
 
 /*
  * When setting the link state of vports during an lport state change, it's

drivers/scsi/libfc/fc_rport.c

@@ -58,7 +58,7 @@
 
 #include "fc_libfc.h"
 
-struct workqueue_struct *rport_event_queue;
+static struct workqueue_struct *rport_event_queue;
 
 static void fc_rport_enter_flogi(struct fc_rport_priv *);
 static void fc_rport_enter_plogi(struct fc_rport_priv *);
@@ -145,8 +145,10 @@ static struct fc_rport_priv *fc_rport_create(struct fc_lport *lport,
 	rdata->maxframe_size = FC_MIN_MAX_PAYLOAD;
 	INIT_DELAYED_WORK(&rdata->retry_work, fc_rport_timeout);
 	INIT_WORK(&rdata->event_work, fc_rport_work);
-	if (port_id != FC_FID_DIR_SERV)
+	if (port_id != FC_FID_DIR_SERV) {
+		rdata->lld_event_callback = lport->tt.rport_event_callback;
 		list_add_rcu(&rdata->peers, &lport->disc.rports);
+	}
 	return rdata;
 }
 
@@ -257,6 +259,8 @@ static void fc_rport_work(struct work_struct *work)
 	struct fc_rport_operations *rport_ops;
 	struct fc_rport_identifiers ids;
 	struct fc_rport *rport;
+	struct fc4_prov *prov;
+	u8 type;
 
 	mutex_lock(&rdata->rp_mutex);
 	event = rdata->event;
@@ -300,12 +304,25 @@ static void fc_rport_work(struct work_struct *work)
 			FC_RPORT_DBG(rdata, "callback ev %d\n", event);
 			rport_ops->event_callback(lport, rdata, event);
 		}
+		if (rdata->lld_event_callback) {
+			FC_RPORT_DBG(rdata, "lld callback ev %d\n", event);
+			rdata->lld_event_callback(lport, rdata, event);
+		}
 		kref_put(&rdata->kref, lport->tt.rport_destroy);
 		break;
 
 	case RPORT_EV_FAILED:
 	case RPORT_EV_LOGO:
 	case RPORT_EV_STOP:
+		if (rdata->prli_count) {
+			mutex_lock(&fc_prov_mutex);
+			for (type = 1; type < FC_FC4_PROV_SIZE; type++) {
+				prov = fc_passive_prov[type];
+				if (prov && prov->prlo)
+					prov->prlo(rdata);
+			}
+			mutex_unlock(&fc_prov_mutex);
+		}
 		port_id = rdata->ids.port_id;
 		mutex_unlock(&rdata->rp_mutex);
 
@@ -313,6 +330,10 @@ static void fc_rport_work(struct work_struct *work)
 			FC_RPORT_DBG(rdata, "callback ev %d\n", event);
 			rport_ops->event_callback(lport, rdata, event);
 		}
+		if (rdata->lld_event_callback) {
+			FC_RPORT_DBG(rdata, "lld callback ev %d\n", event);
+			rdata->lld_event_callback(lport, rdata, event);
+		}
 		cancel_delayed_work_sync(&rdata->retry_work);
 
 		/*
@@ -336,6 +357,7 @@ static void fc_rport_work(struct work_struct *work)
 			if (port_id == FC_FID_DIR_SERV) {
 				rdata->event = RPORT_EV_NONE;
 				mutex_unlock(&rdata->rp_mutex);
+				kref_put(&rdata->kref, lport->tt.rport_destroy);
 			} else if ((rdata->flags & FC_RP_STARTED) &&
 				   rdata->major_retries <
 				   lport->max_rport_retry_count) {
@@ -575,7 +597,7 @@ static void fc_rport_error_retry(struct fc_rport_priv *rdata,
 
 	/* make sure this isn't an FC_EX_CLOSED error, never retry those */
 	if (PTR_ERR(fp) == -FC_EX_CLOSED)
-		return fc_rport_error(rdata, fp);
+		goto out;
 
 	if (rdata->retries < rdata->local_port->max_rport_retry_count) {
 		FC_RPORT_DBG(rdata, "Error %ld in state %s, retrying\n",
@@ -588,7 +610,8 @@ static void fc_rport_error_retry(struct fc_rport_priv *rdata,
 		return;
 	}
 
-	return fc_rport_error(rdata, fp);
+out:
+	fc_rport_error(rdata, fp);
 }
 
 /**
@@ -878,6 +901,9 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp,
 		rdata->ids.port_name = get_unaligned_be64(&plp->fl_wwpn);
 		rdata->ids.node_name = get_unaligned_be64(&plp->fl_wwnn);
 
+		/* save plogi response sp_features for further reference */
+		rdata->sp_features = ntohs(plp->fl_csp.sp_features);
+
 		if (lport->point_to_multipoint)
 			fc_rport_login_complete(rdata, fp);
 		csp_seq = ntohs(plp->fl_csp.sp_tot_seq);
@@ -949,6 +975,8 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
 		struct fc_els_prli prli;
 		struct fc_els_spp spp;
 	} *pp;
+	struct fc_els_spp temp_spp;
+	struct fc4_prov *prov;
 	u32 roles = FC_RPORT_ROLE_UNKNOWN;
 	u32 fcp_parm = 0;
 	u8 op;
@@ -983,6 +1011,7 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
 		resp_code = (pp->spp.spp_flags & FC_SPP_RESP_MASK);
 		FC_RPORT_DBG(rdata, "PRLI spp_flags = 0x%x\n",
 			     pp->spp.spp_flags);
+		rdata->spp_type = pp->spp.spp_type;
 		if (resp_code != FC_SPP_RESP_ACK) {
 			if (resp_code == FC_SPP_RESP_CONF)
 				fc_rport_error(rdata, fp);
@@ -996,6 +1025,15 @@ static void fc_rport_prli_resp(struct fc_seq *sp, struct fc_frame *fp,
 		fcp_parm = ntohl(pp->spp.spp_params);
 		if (fcp_parm & FCP_SPPF_RETRY)
 			rdata->flags |= FC_RP_FLAGS_RETRY;
+		if (fcp_parm & FCP_SPPF_CONF_COMPL)
+			rdata->flags |= FC_RP_FLAGS_CONF_REQ;
+
+		prov = fc_passive_prov[FC_TYPE_FCP];
+		if (prov) {
+			memset(&temp_spp, 0, sizeof(temp_spp));
+			prov->prli(rdata, pp->prli.prli_spp_len,
+				   &pp->spp, &temp_spp);
+		}
 
 		rdata->supported_classes = FC_COS_CLASS3;
 		if (fcp_parm & FCP_SPPF_INIT_FCN)
@@ -1033,6 +1071,7 @@ static void fc_rport_enter_prli(struct fc_rport_priv *rdata)
 		struct fc_els_spp spp;
 	} *pp;
 	struct fc_frame *fp;
+	struct fc4_prov *prov;
 
 	/*
 	 * If the rport is one of the well known addresses
@@ -1054,9 +1093,20 @@ static void fc_rport_enter_prli(struct fc_rport_priv *rdata)
 		return;
 	}
 
-	if (!lport->tt.elsct_send(lport, rdata->ids.port_id, fp, ELS_PRLI,
-				  fc_rport_prli_resp, rdata,
-				  2 * lport->r_a_tov))
+	fc_prli_fill(lport, fp);
+
+	prov = fc_passive_prov[FC_TYPE_FCP];
+	if (prov) {
+		pp = fc_frame_payload_get(fp, sizeof(*pp));
+		prov->prli(rdata, sizeof(pp->spp), NULL, &pp->spp);
+	}
+
+	fc_fill_fc_hdr(fp, FC_RCTL_ELS_REQ, rdata->ids.port_id,
+		       fc_host_port_id(lport->host), FC_TYPE_ELS,
+		       FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
+
+	if (!lport->tt.exch_seq_send(lport, fp, fc_rport_prli_resp,
+				    NULL, rdata, 2 * lport->r_a_tov))
 		fc_rport_error_retry(rdata, NULL);
 	else
 		kref_get(&rdata->kref);
@@ -1642,9 +1692,9 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata,
 	unsigned int len;
 	unsigned int plen;
 	enum fc_els_spp_resp resp;
+	enum fc_els_spp_resp passive;
 	struct fc_seq_els_data rjt_data;
-	u32 fcp_parm;
-	u32 roles = FC_RPORT_ROLE_UNKNOWN;
+	struct fc4_prov *prov;
 
 	FC_RPORT_DBG(rdata, "Received PRLI request while in state %s\n",
 		     fc_rport_state(rdata));
@@ -1678,46 +1728,42 @@ static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata,
 	pp->prli.prli_len = htons(len);
 	len -= sizeof(struct fc_els_prli);
 
-	/* reinitialize remote port roles */
-	rdata->ids.roles = FC_RPORT_ROLE_UNKNOWN;
-
 	/*
 	 * Go through all the service parameter pages and build
 	 * response.  If plen indicates longer SPP than standard,
 	 * use that.  The entire response has been pre-cleared above.
 	 */
 	spp = &pp->spp;
+	mutex_lock(&fc_prov_mutex);
 	while (len >= plen) {
+		rdata->spp_type = rspp->spp_type;
 		spp->spp_type = rspp->spp_type;
 		spp->spp_type_ext = rspp->spp_type_ext;
-		spp->spp_flags = rspp->spp_flags & FC_SPP_EST_IMG_PAIR;
-		resp = FC_SPP_RESP_ACK;
-
-		switch (rspp->spp_type) {
-		case 0:	/* common to all FC-4 types */
-			break;
-		case FC_TYPE_FCP:
-			fcp_parm = ntohl(rspp->spp_params);
-			if (fcp_parm & FCP_SPPF_RETRY)
-				rdata->flags |= FC_RP_FLAGS_RETRY;
-			rdata->supported_classes = FC_COS_CLASS3;
-			if (fcp_parm & FCP_SPPF_INIT_FCN)
-				roles |= FC_RPORT_ROLE_FCP_INITIATOR;
-			if (fcp_parm & FCP_SPPF_TARG_FCN)
-				roles |= FC_RPORT_ROLE_FCP_TARGET;
-			rdata->ids.roles = roles;
-
-			spp->spp_params = htonl(lport->service_params);
-			break;
-		default:
-			resp = FC_SPP_RESP_INVL;
-			break;
+		resp = 0;
+
+		if (rspp->spp_type < FC_FC4_PROV_SIZE) {
+			prov = fc_active_prov[rspp->spp_type];
+			if (prov)
+				resp = prov->prli(rdata, plen, rspp, spp);
+			prov = fc_passive_prov[rspp->spp_type];
+			if (prov) {
+				passive = prov->prli(rdata, plen, rspp, spp);
+				if (!resp || passive == FC_SPP_RESP_ACK)
+					resp = passive;
+			}
+		}
+		if (!resp) {
+			if (spp->spp_flags & FC_SPP_EST_IMG_PAIR)
+				resp |= FC_SPP_RESP_CONF;
+			else
+				resp |= FC_SPP_RESP_INVL;
 		}
 		spp->spp_flags |= resp;
 		len -= plen;
 		rspp = (struct fc_els_spp *)((char *)rspp + plen);
 		spp = (struct fc_els_spp *)((char *)spp + plen);
 	}
+	mutex_unlock(&fc_prov_mutex);
 
 	/*
 	 * Send LS_ACC.	 If this fails, the originator should retry.
@@ -1886,10 +1932,83 @@ int fc_rport_init(struct fc_lport *lport)
 }
 EXPORT_SYMBOL(fc_rport_init);
 
+/**
+ * fc_rport_fcp_prli() - Handle incoming PRLI for the FCP initiator.
+ * @rdata: remote port private
+ * @spp_len: service parameter page length
+ * @rspp: received service parameter page
+ * @spp: response service parameter page
+ *
+ * Returns the value for the response code to be placed in spp_flags;
+ * Returns 0 if not an initiator.
+ */
+static int fc_rport_fcp_prli(struct fc_rport_priv *rdata, u32 spp_len,
+			     const struct fc_els_spp *rspp,
+			     struct fc_els_spp *spp)
+{
+	struct fc_lport *lport = rdata->local_port;
+	u32 fcp_parm;
+
+	fcp_parm = ntohl(rspp->spp_params);
+	rdata->ids.roles = FC_RPORT_ROLE_UNKNOWN;
+	if (fcp_parm & FCP_SPPF_INIT_FCN)
+		rdata->ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
+	if (fcp_parm & FCP_SPPF_TARG_FCN)
+		rdata->ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
+	if (fcp_parm & FCP_SPPF_RETRY)
+		rdata->flags |= FC_RP_FLAGS_RETRY;
+	rdata->supported_classes = FC_COS_CLASS3;
+
+	if (!(lport->service_params & FC_RPORT_ROLE_FCP_INITIATOR))
+		return 0;
+
+	spp->spp_flags |= rspp->spp_flags & FC_SPP_EST_IMG_PAIR;
+
+	/*
+	 * OR in our service parameters with other providers (target), if any.
+	 */
+	fcp_parm = ntohl(spp->spp_params);
+	spp->spp_params = htonl(fcp_parm | lport->service_params);
+	return FC_SPP_RESP_ACK;
+}
+
+/*
+ * FC-4 provider ops for FCP initiator.
+ */
+struct fc4_prov fc_rport_fcp_init = {
+	.prli = fc_rport_fcp_prli,
+};
+
+/**
+ * fc_rport_t0_prli() - Handle incoming PRLI parameters for type 0
+ * @rdata: remote port private
+ * @spp_len: service parameter page length
+ * @rspp: received service parameter page
+ * @spp: response service parameter page
+ */
+static int fc_rport_t0_prli(struct fc_rport_priv *rdata, u32 spp_len,
+			    const struct fc_els_spp *rspp,
+			    struct fc_els_spp *spp)
+{
+	if (rspp->spp_flags & FC_SPP_EST_IMG_PAIR)
+		return FC_SPP_RESP_INVL;
+	return FC_SPP_RESP_ACK;
+}
+
+/*
+ * FC-4 provider ops for type 0 service parameters.
+ *
+ * This handles the special case of type 0 which is always successful
+ * but doesn't do anything otherwise.
+ */
+struct fc4_prov fc_rport_t0_prov = {
+	.prli = fc_rport_t0_prli,
+};
+
 /**
  * fc_setup_rport() - Initialize the rport_event_queue
  */
-int fc_setup_rport()
+int fc_setup_rport(void)
 {
 	rport_event_queue = create_singlethread_workqueue("fc_rport_eq");
 	if (!rport_event_queue)
@@ -1900,7 +2019,7 @@ int fc_setup_rport()
 /**
  * fc_destroy_rport() - Destroy the rport_event_queue
  */
-void fc_destroy_rport()
+void fc_destroy_rport(void)
 {
 	destroy_workqueue(rport_event_queue);
 }

drivers/scsi/libiscsi.c

@@ -3352,6 +3352,47 @@ int iscsi_session_get_param(struct iscsi_cls_session *cls_session,
 }
 EXPORT_SYMBOL_GPL(iscsi_session_get_param);
 
+int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,
+			      enum iscsi_param param, char *buf)
+{
+	struct sockaddr_in6 *sin6 = NULL;
+	struct sockaddr_in *sin = NULL;
+	int len;
+
+	switch (addr->ss_family) {
+	case AF_INET:
+		sin = (struct sockaddr_in *)addr;
+		break;
+	case AF_INET6:
+		sin6 = (struct sockaddr_in6 *)addr;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (param) {
+	case ISCSI_PARAM_CONN_ADDRESS:
+	case ISCSI_HOST_PARAM_IPADDRESS:
+		if (sin)
+			len = sprintf(buf, "%pI4\n", &sin->sin_addr.s_addr);
+		else
+			len = sprintf(buf, "%pI6\n", &sin6->sin6_addr);
+		break;
+	case ISCSI_PARAM_CONN_PORT:
+		if (sin)
+			len = sprintf(buf, "%hu\n", be16_to_cpu(sin->sin_port));
+		else
+			len = sprintf(buf, "%hu\n",
+				      be16_to_cpu(sin6->sin6_port));
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return len;
+}
+EXPORT_SYMBOL_GPL(iscsi_conn_get_addr_param);
+
 int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
 			 enum iscsi_param param, char *buf)
 {
@@ -3416,9 +3457,6 @@ int iscsi_host_get_param(struct Scsi_Host *shost, enum iscsi_host_param param,
 	case ISCSI_HOST_PARAM_INITIATOR_NAME:
 		len = sprintf(buf, "%s\n", ihost->initiatorname);
 		break;
-	case ISCSI_HOST_PARAM_IPADDRESS:
-		len = sprintf(buf, "%s\n", ihost->local_address);
-		break;
 	default:
 		return -ENOSYS;
 	}

drivers/scsi/libsas/Kconfig

@@ -46,11 +46,3 @@ config SCSI_SAS_HOST_SMP
 		Allows sas hosts to receive SMP frames.  Selecting this
 		option builds an SMP interpreter into libsas.  Say
 		N here if you want to save the few kb this consumes.
-
-config SCSI_SAS_LIBSAS_DEBUG
-	bool "Compile the SAS Domain Transport Attributes in debug mode"
-	default y
-	depends on SCSI_SAS_LIBSAS
-	help
-		Compiles the SAS Layer in debug mode.  In debug mode, the
-		SAS Layer prints diagnostic and debug messages.

drivers/scsi/libsas/Makefile

@@ -21,10 +21,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 # USA
 
-ifeq ($(CONFIG_SCSI_SAS_LIBSAS_DEBUG),y)
-	EXTRA_CFLAGS += -DSAS_DEBUG
-endif
-
 obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas.o
 libsas-y +=  sas_init.o     \
 		sas_phy.o      \

drivers/scsi/libsas/sas_ata.c

@@ -71,13 +71,13 @@ static enum ata_completion_errors sas_to_ata_err(struct task_status_struct *ts)
 		case SAS_SG_ERR:
 			return AC_ERR_INVALID;
 
-		case SAM_STAT_CHECK_CONDITION:
 		case SAS_OPEN_TO:
 		case SAS_OPEN_REJECT:
 			SAS_DPRINTK("%s: Saw error %d.  What to do?\n",
 				    __func__, ts->stat);
 			return AC_ERR_OTHER;
 
+		case SAM_STAT_CHECK_CONDITION:
 		case SAS_ABORTED_TASK:
 			return AC_ERR_DEV;
 
@@ -107,13 +107,15 @@ static void sas_ata_task_done(struct sas_task *task)
 	sas_ha = dev->port->ha;
 
 	spin_lock_irqsave(dev->sata_dev.ap->lock, flags);
-	if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD) {
+	if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD ||
+	    ((stat->stat == SAM_STAT_CHECK_CONDITION &&
+	      dev->sata_dev.command_set == ATAPI_COMMAND_SET))) {
 		ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
 		qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
 		dev->sata_dev.sstatus = resp->sstatus;
 		dev->sata_dev.serror = resp->serror;
 		dev->sata_dev.scontrol = resp->scontrol;
-	} else if (stat->stat != SAM_STAT_GOOD) {
+	} else {
 		ac = sas_to_ata_err(stat);
 		if (ac) {
 			SAS_DPRINTK("%s: SAS error %x\n", __func__,
@@ -305,55 +307,6 @@ static void sas_ata_post_internal(struct ata_queued_cmd *qc)
 	}
 }
 
-static int sas_ata_scr_write(struct ata_link *link, unsigned int sc_reg_in,
-			      u32 val)
-{
-	struct domain_device *dev = link->ap->private_data;
-
-	SAS_DPRINTK("STUB %s\n", __func__);
-	switch (sc_reg_in) {
-		case SCR_STATUS:
-			dev->sata_dev.sstatus = val;
-			break;
-		case SCR_CONTROL:
-			dev->sata_dev.scontrol = val;
-			break;
-		case SCR_ERROR:
-			dev->sata_dev.serror = val;
-			break;
-		case SCR_ACTIVE:
-			dev->sata_dev.ap->link.sactive = val;
-			break;
-		default:
-			return -EINVAL;
-	}
-	return 0;
-}
-
-static int sas_ata_scr_read(struct ata_link *link, unsigned int sc_reg_in,
-			    u32 *val)
-{
-	struct domain_device *dev = link->ap->private_data;
-
-	SAS_DPRINTK("STUB %s\n", __func__);
-	switch (sc_reg_in) {
-		case SCR_STATUS:
-			*val = dev->sata_dev.sstatus;
-			return 0;
-		case SCR_CONTROL:
-			*val = dev->sata_dev.scontrol;
-			return 0;
-		case SCR_ERROR:
-			*val = dev->sata_dev.serror;
-			return 0;
-		case SCR_ACTIVE:
-			*val = dev->sata_dev.ap->link.sactive;
-			return 0;
-		default:
-			return -EINVAL;
-	}
-}
-
 static struct ata_port_operations sas_sata_ops = {
 	.prereset		= ata_std_prereset,
 	.softreset		= NULL,
@@ -367,8 +320,6 @@ static struct ata_port_operations sas_sata_ops = {
 	.qc_fill_rtf		= sas_ata_qc_fill_rtf,
 	.port_start		= ata_sas_port_start,
 	.port_stop		= ata_sas_port_stop,
-	.scr_read		= sas_ata_scr_read,
-	.scr_write		= sas_ata_scr_write
 };
 
 static struct ata_port_info sata_port_info = {
@@ -801,7 +752,7 @@ void sas_ata_strategy_handler(struct Scsi_Host *shost)
 
 		if (!dev_is_sata(ddev))
 			continue;
-		
+
 		ata_port_printk(ap, KERN_DEBUG, "sas eh calling libata port error handler");
 		ata_scsi_port_error_handler(shost, ap);
 	}
@@ -834,13 +785,13 @@ int sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
 		LIST_HEAD(sata_q);
 
 		ap = NULL;
-		
+
 		list_for_each_entry_safe(cmd, n, work_q, eh_entry) {
 			struct domain_device *ddev = cmd_to_domain_dev(cmd);
 
 			if (!dev_is_sata(ddev) || TO_SAS_TASK(cmd))
 				continue;
-			if(ap && ap != ddev->sata_dev.ap)
+			if (ap && ap != ddev->sata_dev.ap)
 				continue;
 			ap = ddev->sata_dev.ap;
 			rtn = 1;
@@ -848,8 +799,21 @@ int sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
 		}
 
 		if (!list_empty(&sata_q)) {
-			ata_port_printk(ap, KERN_DEBUG,"sas eh calling libata cmd error handler\n");
+			ata_port_printk(ap, KERN_DEBUG, "sas eh calling libata cmd error handler\n");
 			ata_scsi_cmd_error_handler(shost, ap, &sata_q);
+			/*
+			 * ata's error handler may leave the cmd on the list
+			 * so make sure they don't remain on a stack list
+			 * about to go out of scope.
+			 *
+			 * This looks strange, since the commands are
+			 * now part of no list, but the next error
+			 * action will be ata_port_error_handler()
+			 * which takes no list and sweeps them up
+			 * anyway from the ata tag array.
+			 */
+			while (!list_empty(&sata_q))
+				list_del_init(sata_q.next);
 		}
 	} while (ap);
 

drivers/scsi/libsas/sas_dump.c

@@ -24,8 +24,6 @@
 
 #include "sas_dump.h"
 
-#ifdef SAS_DEBUG
-
 static const char *sas_hae_str[] = {
 	[0] = "HAE_RESET",
 };
@@ -72,5 +70,3 @@ void sas_dump_port(struct asd_sas_port *port)
 	SAS_DPRINTK("port%d: oob_mode:0x%x\n", port->id, port->oob_mode);
 	SAS_DPRINTK("port%d: num_phys:%d\n", port->id, port->num_phys);
 }
-
-#endif /* SAS_DEBUG */

drivers/scsi/libsas/sas_dump.h

@@ -24,19 +24,7 @@
 
 #include "sas_internal.h"
 
-#ifdef SAS_DEBUG
-
 void sas_dprint_porte(int phyid, enum port_event pe);
 void sas_dprint_phye(int phyid, enum phy_event pe);
 void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he);
 void sas_dump_port(struct asd_sas_port *port);
-
-#else /* SAS_DEBUG */
-
-static inline void sas_dprint_porte(int phyid, enum port_event pe) { }
-static inline void sas_dprint_phye(int phyid, enum phy_event pe) { }
-static inline void sas_dprint_hae(struct sas_ha_struct *sas_ha,
-				  enum ha_event he) { }
-static inline void sas_dump_port(struct asd_sas_port *port) { }
-
-#endif /* SAS_DEBUG */

drivers/scsi/libsas/sas_expander.c

@@ -244,6 +244,11 @@ static int sas_ex_phy_discover_helper(struct domain_device *dev, u8 *disc_req,
 		 * dev to host FIS as described in section G.5 of
 		 * sas-2 r 04b */
 		dr = &((struct smp_resp *)disc_resp)->disc;
+		if (memcmp(dev->sas_addr, dr->attached_sas_addr,
+			  SAS_ADDR_SIZE) == 0) {
+			sas_printk("Found loopback topology, just ignore it!\n");
+			return 0;
+		}
 		if (!(dr->attached_dev_type == 0 &&
 		      dr->attached_sata_dev))
 			break;

drivers/scsi/libsas/sas_internal.h

@@ -33,11 +33,7 @@
 
 #define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
 
-#ifdef SAS_DEBUG
-#define SAS_DPRINTK(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
-#else
-#define SAS_DPRINTK(fmt, ...)
-#endif
+#define SAS_DPRINTK(fmt, ...) printk(KERN_DEBUG "sas: " fmt, ## __VA_ARGS__)
 
 #define TO_SAS_TASK(_scsi_cmd)  ((void *)(_scsi_cmd)->host_scribble)
 #define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)

drivers/scsi/libsas/sas_scsi_host.c

@@ -681,11 +681,10 @@ enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd)
 {
 	struct sas_task *task = TO_SAS_TASK(cmd);
 	unsigned long flags;
-	enum blk_eh_timer_return rtn; 
+	enum blk_eh_timer_return rtn;
 
 	if (sas_ata_timed_out(cmd, task, &rtn))
 		return rtn;
-	
 
 	if (!task) {
 		cmd->request->timeout /= 2;

drivers/scsi/lpfc/lpfc.h

@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -325,6 +325,7 @@ struct lpfc_vport {
 #define FC_VPORT_CVL_RCVD	0x400000 /* VLink failed due to CVL	 */
 #define FC_VFI_REGISTERED	0x800000 /* VFI is registered */
 #define FC_FDISC_COMPLETED	0x1000000/* FDISC completed */
+#define FC_DISC_DELAYED		0x2000000/* Delay NPort discovery */
 
 	uint32_t ct_flags;
 #define FC_CT_RFF_ID		0x1	 /* RFF_ID accepted by switch */
@@ -348,6 +349,8 @@ struct lpfc_vport {
 
 	uint32_t fc_myDID;	/* fibre channel S_ID */
 	uint32_t fc_prevDID;	/* previous fibre channel S_ID */
+	struct lpfc_name fabric_portname;
+	struct lpfc_name fabric_nodename;
 
 	int32_t stopped;   /* HBA has not been restarted since last ERATT */
 	uint8_t fc_linkspeed;	/* Link speed after last READ_LA */
@@ -372,6 +375,7 @@ struct lpfc_vport {
 #define WORKER_DISC_TMO                0x1	/* vport: Discovery timeout */
 #define WORKER_ELS_TMO                 0x2	/* vport: ELS timeout */
 #define WORKER_FDMI_TMO                0x4	/* vport: FDMI timeout */
+#define WORKER_DELAYED_DISC_TMO        0x8	/* vport: delayed discovery */
 
 #define WORKER_MBOX_TMO                0x100	/* hba: MBOX timeout */
 #define WORKER_HB_TMO                  0x200	/* hba: Heart beat timeout */
@@ -382,6 +386,7 @@ struct lpfc_vport {
 
 	struct timer_list fc_fdmitmo;
 	struct timer_list els_tmofunc;
+	struct timer_list delayed_disc_tmo;
 
 	int unreg_vpi_cmpl;
 
@@ -548,6 +553,8 @@ struct lpfc_hba {
 #define LPFC_SLI3_CRP_ENABLED		0x08
 #define LPFC_SLI3_BG_ENABLED		0x20
 #define LPFC_SLI3_DSS_ENABLED		0x40
+#define LPFC_SLI4_PERFH_ENABLED		0x80
+#define LPFC_SLI4_PHWQ_ENABLED		0x100
 	uint32_t iocb_cmd_size;
 	uint32_t iocb_rsp_size;
 
@@ -655,7 +662,7 @@ struct lpfc_hba {
 #define LPFC_INITIALIZE_LINK              0	/* do normal init_link mbox */
 #define LPFC_DELAY_INIT_LINK              1	/* layered driver hold off */
 #define LPFC_DELAY_INIT_LINK_INDEFINITELY 2	/* wait, manual intervention */
-
+	uint32_t cfg_enable_dss;
 	lpfc_vpd_t vpd;		/* vital product data */
 
 	struct pci_dev *pcidev;
@@ -792,6 +799,10 @@ struct lpfc_hba {
 	struct dentry *debug_slow_ring_trc;
 	struct lpfc_debugfs_trc *slow_ring_trc;
 	atomic_t slow_ring_trc_cnt;
+	/* iDiag debugfs sub-directory */
+	struct dentry *idiag_root;
+	struct dentry *idiag_pci_cfg;
+	struct dentry *idiag_que_info;
 #endif
 
 	/* Used for deferred freeing of ELS data buffers */

drivers/scsi/lpfc/lpfc_attr.c

@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -623,10 +623,14 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 	int status = 0;
 	int cnt = 0;
 	int i;
+	int rc;
 
 	init_completion(&online_compl);
-	lpfc_workq_post_event(phba, &status, &online_compl,
+	rc = lpfc_workq_post_event(phba, &status, &online_compl,
 			      LPFC_EVT_OFFLINE_PREP);
+	if (rc == 0)
+		return -ENOMEM;
+
 	wait_for_completion(&online_compl);
 
 	if (status != 0)
@@ -652,7 +656,10 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
 	}
 
 	init_completion(&online_compl);
-	lpfc_workq_post_event(phba, &status, &online_compl, type);
+	rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
+	if (rc == 0)
+		return -ENOMEM;
+
 	wait_for_completion(&online_compl);
 
 	if (status != 0)
@@ -671,6 +678,7 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
  *
  * Notes:
  * Assumes any error from lpfc_do_offline() will be negative.
+ * Do not make this function static.
  *
  * Returns:
  * lpfc_do_offline() return code if not zero
@@ -682,6 +690,7 @@ lpfc_selective_reset(struct lpfc_hba *phba)
 {
 	struct completion online_compl;
 	int status = 0;
+	int rc;
 
 	if (!phba->cfg_enable_hba_reset)
 		return -EIO;
@@ -692,8 +701,11 @@ lpfc_selective_reset(struct lpfc_hba *phba)
 		return status;
 
 	init_completion(&online_compl);
-	lpfc_workq_post_event(phba, &status, &online_compl,
+	rc = lpfc_workq_post_event(phba, &status, &online_compl,
 			      LPFC_EVT_ONLINE);
+	if (rc == 0)
+		return -ENOMEM;
+
 	wait_for_completion(&online_compl);
 
 	if (status != 0)
@@ -812,14 +824,17 @@ lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
 	struct lpfc_hba   *phba = vport->phba;
 	struct completion online_compl;
 	int status=0;
+	int rc;
 
 	if (!phba->cfg_enable_hba_reset)
 		return -EACCES;
 	init_completion(&online_compl);
 
 	if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
-		lpfc_workq_post_event(phba, &status, &online_compl,
+		rc = lpfc_workq_post_event(phba, &status, &online_compl,
 				      LPFC_EVT_ONLINE);
+		if (rc == 0)
+			return -ENOMEM;
 		wait_for_completion(&online_compl);
 	} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 		status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
@@ -1278,6 +1293,28 @@ lpfc_fips_rev_show(struct device *dev,  struct device_attribute *attr,
 	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
 }
 
+/**
+ * lpfc_dss_show - Return the current state of dss and the configured state
+ * @dev: class converted to a Scsi_host structure.
+ * @attr: device attribute, not used.
+ * @buf: on return contains the formatted text.
+ *
+ * Returns: size of formatted string.
+ **/
+static ssize_t
+lpfc_dss_show(struct device *dev, struct device_attribute *attr,
+	      char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+	struct lpfc_hba   *phba = vport->phba;
+
+	return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
+			(phba->cfg_enable_dss) ? "Enabled" : "Disabled",
+			(phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
+				"" : "Not ");
+}
+
 /**
  * lpfc_param_show - Return a cfg attribute value in decimal
  *
@@ -1597,13 +1634,13 @@ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
 
 #define LPFC_ATTR(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_param_init(name, defval, minval, maxval)
 
 #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_param_show(name)\
 lpfc_param_init(name, defval, minval, maxval)\
@@ -1611,7 +1648,7 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 
 #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_param_show(name)\
 lpfc_param_init(name, defval, minval, maxval)\
@@ -1622,7 +1659,7 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 
 #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_param_hex_show(name)\
 lpfc_param_init(name, defval, minval, maxval)\
@@ -1630,7 +1667,7 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 
 #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_param_hex_show(name)\
 lpfc_param_init(name, defval, minval, maxval)\
@@ -1641,13 +1678,13 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 
 #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_vport_param_init(name, defval, minval, maxval)
 
 #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_vport_param_show(name)\
 lpfc_vport_param_init(name, defval, minval, maxval)\
@@ -1655,7 +1692,7 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 
 #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_vport_param_show(name)\
 lpfc_vport_param_init(name, defval, minval, maxval)\
@@ -1666,7 +1703,7 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
 
 #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_vport_param_hex_show(name)\
 lpfc_vport_param_init(name, defval, minval, maxval)\
@@ -1674,7 +1711,7 @@ static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
 
 #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
 static uint lpfc_##name = defval;\
-module_param(lpfc_##name, uint, 0);\
+module_param(lpfc_##name, uint, S_IRUGO);\
 MODULE_PARM_DESC(lpfc_##name, desc);\
 lpfc_vport_param_hex_show(name)\
 lpfc_vport_param_init(name, defval, minval, maxval)\
@@ -1718,7 +1755,7 @@ static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
-
+static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
 
 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 
@@ -1813,6 +1850,7 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
 	int stat1=0, stat2=0;
 	unsigned int i, j, cnt=count;
 	u8 wwpn[8];
+	int rc;
 
 	if (!phba->cfg_enable_hba_reset)
 		return -EACCES;
@@ -1863,7 +1901,11 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
 				"0463 lpfc_soft_wwpn attribute set failed to "
 				"reinit adapter - %d\n", stat1);
 	init_completion(&online_compl);
-	lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
+	rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
+				   LPFC_EVT_ONLINE);
+	if (rc == 0)
+		return -ENOMEM;
+
 	wait_for_completion(&online_compl);
 	if (stat2)
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -1954,7 +1996,7 @@ static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
 
 
 static int lpfc_poll = 0;
-module_param(lpfc_poll, int, 0);
+module_param(lpfc_poll, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 		 " 0 - none,"
 		 " 1 - poll with interrupts enabled"
@@ -1964,21 +2006,21 @@ static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
 		   lpfc_poll_show, lpfc_poll_store);
 
 int  lpfc_sli_mode = 0;
-module_param(lpfc_sli_mode, int, 0);
+module_param(lpfc_sli_mode, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
 		 " 0 - auto (SLI-3 if supported),"
 		 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
 		 " 3 - select SLI-3");
 
 int lpfc_enable_npiv = 1;
-module_param(lpfc_enable_npiv, int, 0);
+module_param(lpfc_enable_npiv, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
 lpfc_param_show(enable_npiv);
 lpfc_param_init(enable_npiv, 1, 0, 1);
 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
 
 int lpfc_enable_rrq;
-module_param(lpfc_enable_rrq, int, 0);
+module_param(lpfc_enable_rrq, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
 lpfc_param_show(enable_rrq);
 lpfc_param_init(enable_rrq, 0, 0, 1);
@@ -2040,7 +2082,7 @@ static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
 			 lpfc_txcmplq_hw_show, NULL);
 
 int lpfc_iocb_cnt = 2;
-module_param(lpfc_iocb_cnt, int, 1);
+module_param(lpfc_iocb_cnt, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_iocb_cnt,
 	"Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
 lpfc_param_show(iocb_cnt);
@@ -2192,7 +2234,7 @@ static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
 # disappear until the timer expires. Value range is [0,255]. Default
 # value is 30.
 */
-module_param(lpfc_devloss_tmo, int, 0);
+module_param(lpfc_devloss_tmo, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_devloss_tmo,
 		 "Seconds driver will hold I/O waiting "
 		 "for a device to come back");
@@ -2302,7 +2344,7 @@ LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
 # Default value of this parameter is 1.
 */
 static int lpfc_restrict_login = 1;
-module_param(lpfc_restrict_login, int, 0);
+module_param(lpfc_restrict_login, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_restrict_login,
 		 "Restrict virtual ports login to remote initiators.");
 lpfc_vport_param_show(restrict_login);
@@ -2473,7 +2515,7 @@ lpfc_topology_store(struct device *dev, struct device_attribute *attr,
 	return -EINVAL;
 }
 static int lpfc_topology = 0;
-module_param(lpfc_topology, int, 0);
+module_param(lpfc_topology, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
 lpfc_param_show(topology)
 lpfc_param_init(topology, 0, 0, 6)
@@ -2915,7 +2957,7 @@ lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
 }
 
 static int lpfc_link_speed = 0;
-module_param(lpfc_link_speed, int, 0);
+module_param(lpfc_link_speed, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
 lpfc_param_show(link_speed)
 
@@ -3043,7 +3085,7 @@ lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
 }
 
 static int lpfc_aer_support = 1;
-module_param(lpfc_aer_support, int, 1);
+module_param(lpfc_aer_support, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
 lpfc_param_show(aer_support)
 
@@ -3155,7 +3197,7 @@ LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
 # The value is set in milliseconds.
 */
 static int lpfc_max_scsicmpl_time;
-module_param(lpfc_max_scsicmpl_time, int, 0);
+module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
 MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
 	"Use command completion time to control queue depth");
 lpfc_vport_param_show(max_scsicmpl_time);
@@ -3331,7 +3373,7 @@ LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
 */
 unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION;
 
-module_param(lpfc_prot_mask, uint, 0);
+module_param(lpfc_prot_mask, uint, S_IRUGO);
 MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
 
 /*
@@ -3343,9 +3385,28 @@ MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
 #
 */
 unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
-module_param(lpfc_prot_guard, byte, 0);
+module_param(lpfc_prot_guard, byte, S_IRUGO);
 MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
 
+/*
+ * Delay initial NPort discovery when Clean Address bit is cleared in
+ * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
+ * This parameter can have value 0 or 1.
+ * When this parameter is set to 0, no delay is added to the initial
+ * discovery.
+ * When this parameter is set to non-zero value, initial Nport discovery is
+ * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
+ * accept and FCID/Fabric name/Fabric portname is changed.
+ * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
+ * when Clean Address bit is cleared in FLOGI/FDISC
+ * accept and FCID/Fabric name/Fabric portname is changed.
+ * Default value is 0.
+ */
+int lpfc_delay_discovery;
+module_param(lpfc_delay_discovery, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_delay_discovery,
+	"Delay NPort discovery when Clean Address bit is cleared. "
+	"Allowed values: 0,1.");
 
 /*
  * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
@@ -3437,6 +3498,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_txcmplq_hw,
 	&dev_attr_lpfc_fips_level,
 	&dev_attr_lpfc_fips_rev,
+	&dev_attr_lpfc_dss,
 	NULL,
 };
 
@@ -4639,6 +4701,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_aer_support_init(phba, lpfc_aer_support);
 	lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
 	lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
+	phba->cfg_enable_dss = 1;
 	return;
 }
 

drivers/scsi/lpfc/lpfc_crtn.h

@@ -53,9 +53,9 @@ void lpfc_unreg_vpi(struct lpfc_hba *, uint16_t, LPFC_MBOXQ_t *);
 void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
 void lpfc_request_features(struct lpfc_hba *, struct lpfcMboxq *);
 void lpfc_supported_pages(struct lpfcMboxq *);
-void lpfc_sli4_params(struct lpfcMboxq *);
+void lpfc_pc_sli4_params(struct lpfcMboxq *);
 int lpfc_pc_sli4_params_get(struct lpfc_hba *, LPFC_MBOXQ_t *);
-
+int lpfc_get_sli4_parameters(struct lpfc_hba *, LPFC_MBOXQ_t *);
 struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t);
 void lpfc_cleanup_rcv_buffers(struct lpfc_vport *);
 void lpfc_rcv_seq_check_edtov(struct lpfc_vport *);
@@ -167,6 +167,8 @@ int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
 int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int);
 void lpfc_fdmi_tmo(unsigned long);
 void lpfc_fdmi_timeout_handler(struct lpfc_vport *);
+void lpfc_delayed_disc_tmo(unsigned long);
+void lpfc_delayed_disc_timeout_handler(struct lpfc_vport *);
 
 int lpfc_config_port_prep(struct lpfc_hba *);
 int lpfc_config_port_post(struct lpfc_hba *);
@@ -341,6 +343,7 @@ extern struct fc_function_template lpfc_transport_functions;
 extern struct fc_function_template lpfc_vport_transport_functions;
 extern int lpfc_sli_mode;
 extern int lpfc_enable_npiv;
+extern int lpfc_delay_discovery;
 
 int  lpfc_vport_symbolic_node_name(struct lpfc_vport *, char *, size_t);
 int  lpfc_vport_symbolic_port_name(struct lpfc_vport *, char *,	size_t);
@@ -423,6 +426,6 @@ int lpfc_send_rrq(struct lpfc_hba *, struct lpfc_node_rrq *);
 int lpfc_set_rrq_active(struct lpfc_hba *, struct lpfc_nodelist *,
 	uint16_t, uint16_t, uint16_t);
 void lpfc_cleanup_wt_rrqs(struct lpfc_hba *);
-void lpfc_cleanup_vports_rrqs(struct lpfc_vport *);
+void lpfc_cleanup_vports_rrqs(struct lpfc_vport *, struct lpfc_nodelist *);
 struct lpfc_node_rrq *lpfc_get_active_rrq(struct lpfc_vport *, uint16_t,
 	uint32_t);

drivers/scsi/lpfc/lpfc_ct.c

@@ -1738,6 +1738,55 @@ fdmi_cmd_exit:
 	return 1;
 }
 
+/**
+ * lpfc_delayed_disc_tmo - Timeout handler for delayed discovery timer.
+ * @ptr - Context object of the timer.
+ *
+ * This function set the WORKER_DELAYED_DISC_TMO flag and wake up
+ * the worker thread.
+ **/
+void
+lpfc_delayed_disc_tmo(unsigned long ptr)
+{
+	struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
+	struct lpfc_hba   *phba = vport->phba;
+	uint32_t tmo_posted;
+	unsigned long iflag;
+
+	spin_lock_irqsave(&vport->work_port_lock, iflag);
+	tmo_posted = vport->work_port_events & WORKER_DELAYED_DISC_TMO;
+	if (!tmo_posted)
+		vport->work_port_events |= WORKER_DELAYED_DISC_TMO;
+	spin_unlock_irqrestore(&vport->work_port_lock, iflag);
+
+	if (!tmo_posted)
+		lpfc_worker_wake_up(phba);
+	return;
+}
+
+/**
+ * lpfc_delayed_disc_timeout_handler - Function called by worker thread to
+ *      handle delayed discovery.
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This function start nport discovery of the vport.
+ **/
+void
+lpfc_delayed_disc_timeout_handler(struct lpfc_vport *vport)
+{
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+	spin_lock_irq(shost->host_lock);
+	if (!(vport->fc_flag & FC_DISC_DELAYED)) {
+		spin_unlock_irq(shost->host_lock);
+		return;
+	}
+	vport->fc_flag &= ~FC_DISC_DELAYED;
+	spin_unlock_irq(shost->host_lock);
+
+	lpfc_do_scr_ns_plogi(vport->phba, vport);
+}
+
 void
 lpfc_fdmi_tmo(unsigned long ptr)
 {

drivers/scsi/lpfc/lpfc_debugfs.h

@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2007 Emulex.  All rights reserved.                *
+ * Copyright (C) 2007-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
@@ -22,6 +22,44 @@
 #define _H_LPFC_DEBUG_FS
 
 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+
+/* size of output line, for discovery_trace and slow_ring_trace */
+#define LPFC_DEBUG_TRC_ENTRY_SIZE 100
+
+/* nodelist output buffer size */
+#define LPFC_NODELIST_SIZE 8192
+#define LPFC_NODELIST_ENTRY_SIZE 120
+
+/* dumpHBASlim output buffer size */
+#define LPFC_DUMPHBASLIM_SIZE 4096
+
+/* dumpHostSlim output buffer size */
+#define LPFC_DUMPHOSTSLIM_SIZE 4096
+
+/* hbqinfo output buffer size */
+#define LPFC_HBQINFO_SIZE 8192
+
+/* rdPciConf output buffer size */
+#define LPFC_PCI_CFG_SIZE 4096
+#define LPFC_PCI_CFG_RD_BUF_SIZE (LPFC_PCI_CFG_SIZE/2)
+#define LPFC_PCI_CFG_RD_SIZE (LPFC_PCI_CFG_SIZE/4)
+
+/* queue info output buffer size */
+#define LPFC_QUE_INFO_GET_BUF_SIZE 2048
+
+#define SIZE_U8  sizeof(uint8_t)
+#define SIZE_U16 sizeof(uint16_t)
+#define SIZE_U32 sizeof(uint32_t)
+
+struct lpfc_debug {
+	char *i_private;
+	char op;
+#define LPFC_IDIAG_OP_RD 1
+#define LPFC_IDIAG_OP_WR 2
+	char *buffer;
+	int  len;
+};
+
 struct lpfc_debugfs_trc {
 	char *fmt;
 	uint32_t data1;
@@ -30,6 +68,26 @@ struct lpfc_debugfs_trc {
 	uint32_t seq_cnt;
 	unsigned long jif;
 };
+
+struct lpfc_idiag_offset {
+	uint32_t last_rd;
+};
+
+#define LPFC_IDIAG_CMD_DATA_SIZE 4
+struct lpfc_idiag_cmd {
+	uint32_t opcode;
+#define LPFC_IDIAG_CMD_PCICFG_RD 0x00000001
+#define LPFC_IDIAG_CMD_PCICFG_WR 0x00000002
+#define LPFC_IDIAG_CMD_PCICFG_ST 0x00000003
+#define LPFC_IDIAG_CMD_PCICFG_CL 0x00000004
+	uint32_t data[LPFC_IDIAG_CMD_DATA_SIZE];
+};
+
+struct lpfc_idiag {
+	uint32_t active;
+	struct lpfc_idiag_cmd cmd;
+	struct lpfc_idiag_offset offset;
+};
 #endif
 
 /* Mask for discovery_trace */

drivers/scsi/lpfc/lpfc_els.c

@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2009 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
@@ -484,6 +484,59 @@ fail:
 	return rc;
 }
 
+/**
+ * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @sp: pointer to service parameter data structure.
+ *
+ * This routine is called from FLOGI/FDISC completion handler functions.
+ * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
+ * node nodename is changed in the completion service parameter else return
+ * 0. This function also set flag in the vport data structure to delay
+ * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
+ * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
+ * node nodename is changed in the completion service parameter.
+ *
+ * Return code
+ *   0 - FCID and Fabric Nodename and Fabric portname is not changed.
+ *   1 - FCID or Fabric Nodename or Fabric portname is changed.
+ *
+ **/
+static uint8_t
+lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
+		struct serv_parm *sp)
+{
+	uint8_t fabric_param_changed = 0;
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+	if ((vport->fc_prevDID != vport->fc_myDID) ||
+		memcmp(&vport->fabric_portname, &sp->portName,
+			sizeof(struct lpfc_name)) ||
+		memcmp(&vport->fabric_nodename, &sp->nodeName,
+			sizeof(struct lpfc_name)))
+		fabric_param_changed = 1;
+
+	/*
+	 * Word 1 Bit 31 in common service parameter is overloaded.
+	 * Word 1 Bit 31 in FLOGI request is multiple NPort request
+	 * Word 1 Bit 31 in FLOGI response is clean address bit
+	 *
+	 * If fabric parameter is changed and clean address bit is
+	 * cleared delay nport discovery if
+	 * - vport->fc_prevDID != 0 (not initial discovery) OR
+	 * - lpfc_delay_discovery module parameter is set.
+	 */
+	if (fabric_param_changed && !sp->cmn.clean_address_bit &&
+	    (vport->fc_prevDID || lpfc_delay_discovery)) {
+		spin_lock_irq(shost->host_lock);
+		vport->fc_flag |= FC_DISC_DELAYED;
+		spin_unlock_irq(shost->host_lock);
+	}
+
+	return fabric_param_changed;
+}
+
+
 /**
  * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
  * @vport: pointer to a host virtual N_Port data structure.
@@ -512,6 +565,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	struct lpfc_hba  *phba = vport->phba;
 	struct lpfc_nodelist *np;
 	struct lpfc_nodelist *next_np;
+	uint8_t fabric_param_changed;
 
 	spin_lock_irq(shost->host_lock);
 	vport->fc_flag |= FC_FABRIC;
@@ -544,6 +598,12 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		ndlp->nlp_class_sup |= FC_COS_CLASS4;
 	ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
 				sp->cmn.bbRcvSizeLsb;
+
+	fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+	memcpy(&vport->fabric_portname, &sp->portName,
+			sizeof(struct lpfc_name));
+	memcpy(&vport->fabric_nodename, &sp->nodeName,
+			sizeof(struct lpfc_name));
 	memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
 
 	if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
@@ -565,7 +625,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		}
 	}
 
-	if ((vport->fc_prevDID != vport->fc_myDID) &&
+	if (fabric_param_changed &&
 		!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
 
 		/* If our NportID changed, we need to ensure all
@@ -2203,6 +2263,7 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
 	IOCB_t *irsp;
 	struct lpfc_sli *psli;
+	struct lpfcMboxq *mbox;
 
 	psli = &phba->sli;
 	/* we pass cmdiocb to state machine which needs rspiocb as well */
@@ -2260,6 +2321,21 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 					NLP_EVT_CMPL_LOGO);
 out:
 	lpfc_els_free_iocb(phba, cmdiocb);
+	/* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
+	if ((vport->fc_flag & FC_PT2PT) &&
+		!(vport->fc_flag & FC_PT2PT_PLOGI)) {
+		phba->pport->fc_myDID = 0;
+		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+		if (mbox) {
+			lpfc_config_link(phba, mbox);
+			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			mbox->vport = vport;
+			if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
+				MBX_NOT_FINISHED) {
+				mempool_free(mbox, phba->mbox_mem_pool);
+			}
+		}
+	}
 	return;
 }
 
@@ -2745,7 +2821,8 @@ lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
 		}
 		break;
 	case ELS_CMD_FDISC:
-		lpfc_issue_els_fdisc(vport, ndlp, retry);
+		if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
+			lpfc_issue_els_fdisc(vport, ndlp, retry);
 		break;
 	}
 	return;
@@ -2815,9 +2892,17 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 	switch (irsp->ulpStatus) {
 	case IOSTAT_FCP_RSP_ERROR:
+		break;
 	case IOSTAT_REMOTE_STOP:
+		if (phba->sli_rev == LPFC_SLI_REV4) {
+			/* This IO was aborted by the target, we don't
+			 * know the rxid and because we did not send the
+			 * ABTS we cannot generate and RRQ.
+			 */
+			lpfc_set_rrq_active(phba, ndlp,
+					 cmdiocb->sli4_xritag, 0, 0);
+		}
 		break;
-
 	case IOSTAT_LOCAL_REJECT:
 		switch ((irsp->un.ulpWord[4] & 0xff)) {
 		case IOERR_LOOP_OPEN_FAILURE:
@@ -4013,28 +4098,34 @@ lpfc_els_clear_rrq(struct lpfc_vport *vport,
 	uint8_t *pcmd;
 	struct RRQ *rrq;
 	uint16_t rxid;
+	uint16_t xri;
 	struct lpfc_node_rrq *prrq;
 
 
 	pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
 	pcmd += sizeof(uint32_t);
 	rrq = (struct RRQ *)pcmd;
-	rxid = bf_get(rrq_oxid, rrq);
+	rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
+	rxid = be16_to_cpu(bf_get(rrq_rxid, rrq));
 
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
 			"2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
 			" x%x x%x\n",
-			bf_get(rrq_did, rrq),
-			bf_get(rrq_oxid, rrq),
+			be32_to_cpu(bf_get(rrq_did, rrq)),
+			be16_to_cpu(bf_get(rrq_oxid, rrq)),
 			rxid,
 			iocb->iotag, iocb->iocb.ulpContext);
 
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
 		"Clear RRQ:  did:x%x flg:x%x exchg:x%.08x",
 		ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
-	prrq = lpfc_get_active_rrq(vport, rxid, ndlp->nlp_DID);
+	if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
+		xri = be16_to_cpu(bf_get(rrq_oxid, rrq));
+	else
+		xri = rxid;
+	prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
 	if (prrq)
-		lpfc_clr_rrq_active(phba, rxid, prrq);
+		lpfc_clr_rrq_active(phba, xri, prrq);
 	return;
 }
 
@@ -6166,6 +6257,11 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	if (vport->load_flag & FC_UNLOADING)
 		goto dropit;
 
+	/* If NPort discovery is delayed drop incoming ELS */
+	if ((vport->fc_flag & FC_DISC_DELAYED) &&
+			(cmd != ELS_CMD_PLOGI))
+		goto dropit;
+
 	ndlp = lpfc_findnode_did(vport, did);
 	if (!ndlp) {
 		/* Cannot find existing Fabric ndlp, so allocate a new one */
@@ -6218,6 +6314,12 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 		ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
 
 		lpfc_send_els_event(vport, ndlp, payload);
+
+		/* If Nport discovery is delayed, reject PLOGIs */
+		if (vport->fc_flag & FC_DISC_DELAYED) {
+			rjt_err = LSRJT_UNABLE_TPC;
+			break;
+		}
 		if (vport->port_state < LPFC_DISC_AUTH) {
 			if (!(phba->pport->fc_flag & FC_PT2PT) ||
 				(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -6596,6 +6698,21 @@ void
 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
 {
 	struct lpfc_nodelist *ndlp, *ndlp_fdmi;
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+	/*
+	 * If lpfc_delay_discovery parameter is set and the clean address
+	 * bit is cleared and fc fabric parameters chenged, delay FC NPort
+	 * discovery.
+	 */
+	spin_lock_irq(shost->host_lock);
+	if (vport->fc_flag & FC_DISC_DELAYED) {
+		spin_unlock_irq(shost->host_lock);
+		mod_timer(&vport->delayed_disc_tmo,
+			jiffies + HZ * phba->fc_ratov);
+		return;
+	}
+	spin_unlock_irq(shost->host_lock);
 
 	ndlp = lpfc_findnode_did(vport, NameServer_DID);
 	if (!ndlp) {
@@ -6938,6 +7055,9 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	struct lpfc_nodelist *next_np;
 	IOCB_t *irsp = &rspiocb->iocb;
 	struct lpfc_iocbq *piocb;
+	struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
+	struct serv_parm *sp;
+	uint8_t fabric_param_changed;
 
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
 			 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
@@ -6981,7 +7101,14 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 	vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
 	lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
-	if ((vport->fc_prevDID != vport->fc_myDID) &&
+	prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
+	sp = prsp->virt + sizeof(uint32_t);
+	fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
+	memcpy(&vport->fabric_portname, &sp->portName,
+		sizeof(struct lpfc_name));
+	memcpy(&vport->fabric_nodename, &sp->nodeName,
+		sizeof(struct lpfc_name));
+	if (fabric_param_changed &&
 		!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
 		/* If our NportID changed, we need to ensure all
 		 * remaining NPORTs get unreg_login'ed so we can
@@ -7581,6 +7708,32 @@ void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
 			      IOERR_SLI_ABORTED);
 }
 
+/**
+ * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
+ * @vport: pointer to lpfc vport data structure.
+ *
+ * This routine is invoked by the vport cleanup for deletions and the cleanup
+ * for an ndlp on removal.
+ **/
+void
+lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
+	unsigned long iflag = 0;
+
+	spin_lock_irqsave(&phba->hbalock, iflag);
+	spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
+	list_for_each_entry_safe(sglq_entry, sglq_next,
+			&phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
+		if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
+			sglq_entry->ndlp = NULL;
+	}
+	spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
+	spin_unlock_irqrestore(&phba->hbalock, iflag);
+	return;
+}
+
 /**
  * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
  * @phba: pointer to lpfc hba data structure.

drivers/scsi/lpfc/lpfc_hbadisc.c

@@ -658,6 +658,8 @@ lpfc_work_done(struct lpfc_hba *phba)
 				lpfc_ramp_down_queue_handler(phba);
 			if (work_port_events & WORKER_RAMP_UP_QUEUE)
 				lpfc_ramp_up_queue_handler(phba);
+			if (work_port_events & WORKER_DELAYED_DISC_TMO)
+				lpfc_delayed_disc_timeout_handler(vport);
 		}
 	lpfc_destroy_vport_work_array(phba, vports);
 
@@ -838,6 +840,11 @@ lpfc_linkdown_port(struct lpfc_vport *vport)
 
 	lpfc_port_link_failure(vport);
 
+	/* Stop delayed Nport discovery */
+	spin_lock_irq(shost->host_lock);
+	vport->fc_flag &= ~FC_DISC_DELAYED;
+	spin_unlock_irq(shost->host_lock);
+	del_timer_sync(&vport->delayed_disc_tmo);
 }
 
 int
@@ -3160,7 +3167,7 @@ lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	spin_unlock_irq(shost->host_lock);
 	vport->unreg_vpi_cmpl = VPORT_OK;
 	mempool_free(pmb, phba->mbox_mem_pool);
-	lpfc_cleanup_vports_rrqs(vport);
+	lpfc_cleanup_vports_rrqs(vport, NULL);
 	/*
 	 * This shost reference might have been taken at the beginning of
 	 * lpfc_vport_delete()
@@ -3900,6 +3907,8 @@ lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 	if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
 		return;
 	lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
+	if (vport->phba->sli_rev == LPFC_SLI_REV4)
+		lpfc_cleanup_vports_rrqs(vport, ndlp);
 	lpfc_nlp_put(ndlp);
 	return;
 }
@@ -4289,7 +4298,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
 	list_del_init(&ndlp->els_retry_evt.evt_listp);
 	list_del_init(&ndlp->dev_loss_evt.evt_listp);
-
+	lpfc_cleanup_vports_rrqs(vport, ndlp);
 	lpfc_unreg_rpi(vport, ndlp);
 
 	return 0;
@@ -4426,10 +4435,11 @@ lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
 {
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 	struct lpfc_nodelist *ndlp;
+	unsigned long iflags;
 
-	spin_lock_irq(shost->host_lock);
+	spin_lock_irqsave(shost->host_lock, iflags);
 	ndlp = __lpfc_findnode_did(vport, did);
-	spin_unlock_irq(shost->host_lock);
+	spin_unlock_irqrestore(shost->host_lock, iflags);
 	return ndlp;
 }
 

drivers/scsi/lpfc/lpfc_hw.h

@@ -341,6 +341,12 @@ struct csp {
 	uint8_t bbCreditMsb;
 	uint8_t bbCreditlsb;	/* FC Word 0, byte 3 */
 
+/*
+ * Word 1 Bit 31 in common service parameter is overloaded.
+ * Word 1 Bit 31 in FLOGI request is multiple NPort request
+ * Word 1 Bit 31 in FLOGI response is clean address bit
+ */
+#define clean_address_bit request_multiple_Nport /* Word 1, bit 31 */
 #ifdef __BIG_ENDIAN_BITFIELD
 	uint16_t request_multiple_Nport:1;	/* FC Word 1, bit 31 */
 	uint16_t randomOffset:1;	/* FC Word 1, bit 30 */
@@ -3198,7 +3204,10 @@ typedef struct {
 #define IOERR_SLER_RRQ_RJT_ERR        0x4C
 #define IOERR_SLER_RRQ_RETRY_ERR      0x4D
 #define IOERR_SLER_ABTS_ERR           0x4E
-
+#define IOERR_ELXSEC_KEY_UNWRAP_ERROR		0xF0
+#define IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR	0xF1
+#define IOERR_ELXSEC_CRYPTO_ERROR		0xF2
+#define IOERR_ELXSEC_CRYPTO_COMPARE_ERROR	0xF3
 #define IOERR_DRVR_MASK               0x100
 #define IOERR_SLI_DOWN                0x101  /* ulpStatus  - Driver defined */
 #define IOERR_SLI_BRESET              0x102

drivers/scsi/lpfc/lpfc_hw4.h

@@ -778,6 +778,7 @@ struct mbox_header {
 #define LPFC_MBOX_OPCODE_QUERY_FW_CFG		0x3A
 #define LPFC_MBOX_OPCODE_FUNCTION_RESET		0x3D
 #define LPFC_MBOX_OPCODE_MQ_CREATE_EXT		0x5A
+#define LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS	0xB5
 
 /* FCoE Opcodes */
 #define LPFC_MBOX_OPCODE_FCOE_WQ_CREATE			0x01
@@ -1852,6 +1853,9 @@ struct lpfc_mbx_request_features {
 #define lpfc_mbx_rq_ftr_rq_ifip_SHIFT		7
 #define lpfc_mbx_rq_ftr_rq_ifip_MASK		0x00000001
 #define lpfc_mbx_rq_ftr_rq_ifip_WORD		word2
+#define lpfc_mbx_rq_ftr_rq_perfh_SHIFT		11
+#define lpfc_mbx_rq_ftr_rq_perfh_MASK		0x00000001
+#define lpfc_mbx_rq_ftr_rq_perfh_WORD		word2
 	uint32_t word3;
 #define lpfc_mbx_rq_ftr_rsp_iaab_SHIFT		0
 #define lpfc_mbx_rq_ftr_rsp_iaab_MASK		0x00000001
@@ -1877,6 +1881,9 @@ struct lpfc_mbx_request_features {
 #define lpfc_mbx_rq_ftr_rsp_ifip_SHIFT		7
 #define lpfc_mbx_rq_ftr_rsp_ifip_MASK		0x00000001
 #define lpfc_mbx_rq_ftr_rsp_ifip_WORD		word3
+#define lpfc_mbx_rq_ftr_rsp_perfh_SHIFT		11
+#define lpfc_mbx_rq_ftr_rsp_perfh_MASK		0x00000001
+#define lpfc_mbx_rq_ftr_rsp_perfh_WORD		word3
 };
 
 struct lpfc_mbx_supp_pages {
@@ -1935,7 +1942,7 @@ struct lpfc_mbx_supp_pages {
 #define LPFC_SLI4_PARAMETERS		2
 };
 
-struct lpfc_mbx_sli4_params {
+struct lpfc_mbx_pc_sli4_params {
 	uint32_t word1;
 #define qs_SHIFT				0
 #define qs_MASK					0x00000001
@@ -2051,6 +2058,88 @@ struct lpfc_mbx_sli4_params {
 	uint32_t rsvd_13_63[51];
 };
 
+struct lpfc_sli4_parameters {
+	uint32_t word0;
+#define cfg_prot_type_SHIFT			0
+#define cfg_prot_type_MASK			0x000000FF
+#define cfg_prot_type_WORD			word0
+	uint32_t word1;
+#define cfg_ft_SHIFT				0
+#define cfg_ft_MASK				0x00000001
+#define cfg_ft_WORD				word1
+#define cfg_sli_rev_SHIFT			4
+#define cfg_sli_rev_MASK			0x0000000f
+#define cfg_sli_rev_WORD			word1
+#define cfg_sli_family_SHIFT			8
+#define cfg_sli_family_MASK			0x0000000f
+#define cfg_sli_family_WORD			word1
+#define cfg_if_type_SHIFT			12
+#define cfg_if_type_MASK			0x0000000f
+#define cfg_if_type_WORD			word1
+#define cfg_sli_hint_1_SHIFT			16
+#define cfg_sli_hint_1_MASK			0x000000ff
+#define cfg_sli_hint_1_WORD			word1
+#define cfg_sli_hint_2_SHIFT			24
+#define cfg_sli_hint_2_MASK			0x0000001f
+#define cfg_sli_hint_2_WORD			word1
+	uint32_t word2;
+	uint32_t word3;
+	uint32_t word4;
+#define cfg_cqv_SHIFT				14
+#define cfg_cqv_MASK				0x00000003
+#define cfg_cqv_WORD				word4
+	uint32_t word5;
+	uint32_t word6;
+#define cfg_mqv_SHIFT				14
+#define cfg_mqv_MASK				0x00000003
+#define cfg_mqv_WORD				word6
+	uint32_t word7;
+	uint32_t word8;
+#define cfg_wqv_SHIFT				14
+#define cfg_wqv_MASK				0x00000003
+#define cfg_wqv_WORD				word8
+	uint32_t word9;
+	uint32_t word10;
+#define cfg_rqv_SHIFT				14
+#define cfg_rqv_MASK				0x00000003
+#define cfg_rqv_WORD				word10
+	uint32_t word11;
+#define cfg_rq_db_window_SHIFT			28
+#define cfg_rq_db_window_MASK			0x0000000f
+#define cfg_rq_db_window_WORD			word11
+	uint32_t word12;
+#define cfg_fcoe_SHIFT				0
+#define cfg_fcoe_MASK				0x00000001
+#define cfg_fcoe_WORD				word12
+#define cfg_phwq_SHIFT				15
+#define cfg_phwq_MASK				0x00000001
+#define cfg_phwq_WORD				word12
+#define cfg_loopbk_scope_SHIFT			28
+#define cfg_loopbk_scope_MASK			0x0000000f
+#define cfg_loopbk_scope_WORD			word12
+	uint32_t sge_supp_len;
+	uint32_t word14;
+#define cfg_sgl_page_cnt_SHIFT			0
+#define cfg_sgl_page_cnt_MASK			0x0000000f
+#define cfg_sgl_page_cnt_WORD			word14
+#define cfg_sgl_page_size_SHIFT			8
+#define cfg_sgl_page_size_MASK			0x000000ff
+#define cfg_sgl_page_size_WORD			word14
+#define cfg_sgl_pp_align_SHIFT			16
+#define cfg_sgl_pp_align_MASK			0x000000ff
+#define cfg_sgl_pp_align_WORD			word14
+	uint32_t word15;
+	uint32_t word16;
+	uint32_t word17;
+	uint32_t word18;
+	uint32_t word19;
+};
+
+struct lpfc_mbx_get_sli4_parameters {
+	struct mbox_header header;
+	struct lpfc_sli4_parameters sli4_parameters;
+};
+
 /* Mailbox Completion Queue Error Messages */
 #define MB_CQE_STATUS_SUCCESS 			0x0
 #define MB_CQE_STATUS_INSUFFICIENT_PRIVILEGES	0x1
@@ -2103,7 +2192,8 @@ struct lpfc_mqe {
 		struct lpfc_mbx_post_hdr_tmpl hdr_tmpl;
 		struct lpfc_mbx_query_fw_cfg query_fw_cfg;
 		struct lpfc_mbx_supp_pages supp_pages;
-		struct lpfc_mbx_sli4_params sli4_params;
+		struct lpfc_mbx_pc_sli4_params sli4_params;
+		struct lpfc_mbx_get_sli4_parameters get_sli4_parameters;
 		struct lpfc_mbx_nop nop;
 	} un;
 };
@@ -2381,6 +2471,10 @@ struct wqe_common {
 #define wqe_wqes_SHIFT        15
 #define wqe_wqes_MASK         0x00000001
 #define wqe_wqes_WORD         word10
+/* Note that this field overlaps above fields */
+#define wqe_wqid_SHIFT        1
+#define wqe_wqid_MASK         0x0000007f
+#define wqe_wqid_WORD         word10
 #define wqe_pri_SHIFT         16
 #define wqe_pri_MASK          0x00000007
 #define wqe_pri_WORD          word10
@@ -2599,7 +2693,8 @@ struct fcp_iwrite64_wqe {
 	uint32_t total_xfer_len;
 	uint32_t initial_xfer_len;
 	struct wqe_common wqe_com;     /* words 6-11 */
-	uint32_t rsvd_12_15[4];         /* word 12-15 */
+	uint32_t rsrvd12;
+	struct ulp_bde64 ph_bde;       /* words 13-15 */
 };
 
 struct fcp_iread64_wqe {
@@ -2608,7 +2703,8 @@ struct fcp_iread64_wqe {
 	uint32_t total_xfer_len;       /* word 4 */
 	uint32_t rsrvd5;               /* word 5 */
 	struct wqe_common wqe_com;     /* words 6-11 */
-	uint32_t rsvd_12_15[4];         /* word 12-15 */
+	uint32_t rsrvd12;
+	struct ulp_bde64 ph_bde;       /* words 13-15 */
 };
 
 struct fcp_icmnd64_wqe {

drivers/scsi/lpfc/lpfc_init.c

@@ -460,7 +460,7 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
 		&& !(phba->lmt & LMT_16Gb))) {
 		/* Reset link speed to auto */
-		lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
+		lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 			"1302 Invalid speed for this board: "
 			"Reset link speed to auto: x%x\n",
 			phba->cfg_link_speed);
@@ -945,17 +945,13 @@ static void
 lpfc_rrq_timeout(unsigned long ptr)
 {
 	struct lpfc_hba *phba;
-	uint32_t tmo_posted;
 	unsigned long iflag;
 
 	phba = (struct lpfc_hba *)ptr;
 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
-	tmo_posted = phba->hba_flag & HBA_RRQ_ACTIVE;
-	if (!tmo_posted)
-		phba->hba_flag |= HBA_RRQ_ACTIVE;
+	phba->hba_flag |= HBA_RRQ_ACTIVE;
 	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
-	if (!tmo_posted)
-		lpfc_worker_wake_up(phba);
+	lpfc_worker_wake_up(phba);
 }
 
 /**
@@ -2280,6 +2276,7 @@ lpfc_cleanup(struct lpfc_vport *vport)
 		/* Wait for any activity on ndlps to settle */
 		msleep(10);
 	}
+	lpfc_cleanup_vports_rrqs(vport, NULL);
 }
 
 /**
@@ -2295,6 +2292,7 @@ lpfc_stop_vport_timers(struct lpfc_vport *vport)
 {
 	del_timer_sync(&vport->els_tmofunc);
 	del_timer_sync(&vport->fc_fdmitmo);
+	del_timer_sync(&vport->delayed_disc_tmo);
 	lpfc_can_disctmo(vport);
 	return;
 }
@@ -2355,6 +2353,10 @@ lpfc_stop_hba_timers(struct lpfc_hba *phba)
 	del_timer_sync(&phba->fabric_block_timer);
 	del_timer_sync(&phba->eratt_poll);
 	del_timer_sync(&phba->hb_tmofunc);
+	if (phba->sli_rev == LPFC_SLI_REV4) {
+		del_timer_sync(&phba->rrq_tmr);
+		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
+	}
 	phba->hb_outstanding = 0;
 
 	switch (phba->pci_dev_grp) {
@@ -2732,6 +2734,11 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 	init_timer(&vport->els_tmofunc);
 	vport->els_tmofunc.function = lpfc_els_timeout;
 	vport->els_tmofunc.data = (unsigned long)vport;
+
+	init_timer(&vport->delayed_disc_tmo);
+	vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
+	vport->delayed_disc_tmo.data = (unsigned long)vport;
+
 	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
 	if (error)
 		goto out_put_shost;
@@ -4283,36 +4290,37 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 		goto out_free_bsmbx;
 	}
 
-	/* Get the Supported Pages. It is always available. */
+	/* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
 	lpfc_supported_pages(mboxq);
 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
-	if (unlikely(rc)) {
-		rc = -EIO;
-		mempool_free(mboxq, phba->mbox_mem_pool);
-		goto out_free_bsmbx;
-	}
-
-	mqe = &mboxq->u.mqe;
-	memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
-	       LPFC_MAX_SUPPORTED_PAGES);
-	for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
-		switch (pn_page[i]) {
-		case LPFC_SLI4_PARAMETERS:
-			phba->sli4_hba.pc_sli4_params.supported = 1;
-			break;
-		default:
-			break;
+	if (!rc) {
+		mqe = &mboxq->u.mqe;
+		memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
+		       LPFC_MAX_SUPPORTED_PAGES);
+		for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
+			switch (pn_page[i]) {
+			case LPFC_SLI4_PARAMETERS:
+				phba->sli4_hba.pc_sli4_params.supported = 1;
+				break;
+			default:
+				break;
+			}
+		}
+		/* Read the port's SLI4 Parameters capabilities if supported. */
+		if (phba->sli4_hba.pc_sli4_params.supported)
+			rc = lpfc_pc_sli4_params_get(phba, mboxq);
+		if (rc) {
+			mempool_free(mboxq, phba->mbox_mem_pool);
+			rc = -EIO;
+			goto out_free_bsmbx;
 		}
 	}
-
-	/* Read the port's SLI4 Parameters capabilities if supported. */
-	if (phba->sli4_hba.pc_sli4_params.supported)
-		rc = lpfc_pc_sli4_params_get(phba, mboxq);
+	/*
+	 * Get sli4 parameters that override parameters from Port capabilities.
+	 * If this call fails it is not a critical error so continue loading.
+	 */
+	lpfc_get_sli4_parameters(phba, mboxq);
 	mempool_free(mboxq, phba->mbox_mem_pool);
-	if (rc) {
-		rc = -EIO;
-		goto out_free_bsmbx;
-	}
 	/* Create all the SLI4 queues */
 	rc = lpfc_sli4_queue_create(phba);
 	if (rc)
@@ -7810,7 +7818,7 @@ lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 	mqe = &mboxq->u.mqe;
 
 	/* Read the port's SLI4 Parameters port capabilities */
-	lpfc_sli4_params(mboxq);
+	lpfc_pc_sli4_params(mboxq);
 	if (!phba->sli4_hba.intr_enable)
 		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 	else {
@@ -7853,6 +7861,66 @@ lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 	return rc;
 }
 
+/**
+ * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
+ * @phba: Pointer to HBA context object.
+ * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
+ *
+ * This function is called in the SLI4 code path to read the port's
+ * sli4 capabilities.
+ *
+ * This function may be be called from any context that can block-wait
+ * for the completion.  The expectation is that this routine is called
+ * typically from probe_one or from the online routine.
+ **/
+int
+lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+	int rc;
+	struct lpfc_mqe *mqe = &mboxq->u.mqe;
+	struct lpfc_pc_sli4_params *sli4_params;
+	int length;
+	struct lpfc_sli4_parameters *mbx_sli4_parameters;
+
+	/* Read the port's SLI4 Config Parameters */
+	length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
+		  sizeof(struct lpfc_sli4_cfg_mhdr));
+	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+			 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
+			 length, LPFC_SLI4_MBX_EMBED);
+	if (!phba->sli4_hba.intr_enable)
+		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+	else
+		rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
+			lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
+	if (unlikely(rc))
+		return rc;
+	sli4_params = &phba->sli4_hba.pc_sli4_params;
+	mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
+	sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
+	sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
+	sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
+	sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
+					     mbx_sli4_parameters);
+	sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
+					     mbx_sli4_parameters);
+	if (bf_get(cfg_phwq, mbx_sli4_parameters))
+		phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
+	else
+		phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
+	sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
+	sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
+	sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
+	sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
+	sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
+	sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
+	sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
+					    mbx_sli4_parameters);
+	sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
+					   mbx_sli4_parameters);
+	return 0;
+}
+
 /**
  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
  * @pdev: pointer to PCI device

drivers/scsi/lpfc/lpfc_mbox.c

@@ -1263,7 +1263,8 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
 		if (phba->cfg_enable_bg)
 			mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
-		mb->un.varCfgPort.cdss = 1; /* Configure Security */
+		if (phba->cfg_enable_dss)
+			mb->un.varCfgPort.cdss = 1; /* Configure Security */
 		mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
 		mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
 		mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
@@ -1692,7 +1693,7 @@ lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
  * @mbox: pointer to lpfc mbox command.
  * @subsystem: The sli4 config sub mailbox subsystem.
  * @opcode: The sli4 config sub mailbox command opcode.
- * @length: Length of the sli4 config mailbox command.
+ * @length: Length of the sli4 config mailbox command (including sub-header).
  *
  * This routine sets up the header fields of SLI4 specific mailbox command
  * for sending IOCTL command.
@@ -1723,14 +1724,14 @@ lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
 	if (emb) {
 		/* Set up main header fields */
 		bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
-		sli4_config->header.cfg_mhdr.payload_length =
-					LPFC_MBX_CMD_HDR_LENGTH + length;
+		sli4_config->header.cfg_mhdr.payload_length = length;
 		/* Set up sub-header fields following main header */
 		bf_set(lpfc_mbox_hdr_opcode,
 			&sli4_config->header.cfg_shdr.request, opcode);
 		bf_set(lpfc_mbox_hdr_subsystem,
 			&sli4_config->header.cfg_shdr.request, subsystem);
-		sli4_config->header.cfg_shdr.request.request_length = length;
+		sli4_config->header.cfg_shdr.request.request_length =
+			length - LPFC_MBX_CMD_HDR_LENGTH;
 		return length;
 	}
 
@@ -1902,6 +1903,7 @@ lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
 
 	/* Set up host requested features. */
 	bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
+	bf_set(lpfc_mbx_rq_ftr_rq_perfh, &mboxq->u.mqe.un.req_ftrs, 1);
 
 	/* Enable DIF (block guard) only if configured to do so. */
 	if (phba->cfg_enable_bg)
@@ -2159,17 +2161,16 @@ lpfc_supported_pages(struct lpfcMboxq *mbox)
 }
 
 /**
- * lpfc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params
- *                    mailbox command.
+ * lpfc_pc_sli4_params - Initialize the PORT_CAPABILITIES SLI4 Params mbox cmd.
  * @mbox: pointer to lpfc mbox command to initialize.
  *
  * The PORT_CAPABILITIES SLI4 parameters mailbox command is issued to
  * retrieve the particular SLI4 features supported by the port.
  **/
 void
-lpfc_sli4_params(struct lpfcMboxq *mbox)
+lpfc_pc_sli4_params(struct lpfcMboxq *mbox)
 {
-	struct lpfc_mbx_sli4_params *sli4_params;
+	struct lpfc_mbx_pc_sli4_params *sli4_params;
 
 	memset(mbox, 0, sizeof(*mbox));
 	sli4_params = &mbox->u.mqe.un.sli4_params;

drivers/scsi/lpfc/lpfc_nportdisc.c

@@ -350,7 +350,11 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	ndlp->nlp_maxframe =
 		((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) | sp->cmn.bbRcvSizeLsb;
 
-	/* no need to reg_login if we are already in one of these states */
+	/*
+	 * Need to unreg_login if we are already in one of these states and
+	 * change to NPR state. This will block the port until after the ACC
+	 * completes and the reg_login is issued and completed.
+	 */
 	switch (ndlp->nlp_state) {
 	case  NLP_STE_NPR_NODE:
 		if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
@@ -359,8 +363,9 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	case  NLP_STE_PRLI_ISSUE:
 	case  NLP_STE_UNMAPPED_NODE:
 	case  NLP_STE_MAPPED_NODE:
-		lpfc_els_rsp_acc(vport, ELS_CMD_PLOGI, cmdiocb, ndlp, NULL);
-		return 1;
+		lpfc_unreg_rpi(vport, ndlp);
+		ndlp->nlp_prev_state = ndlp->nlp_state;
+		lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
 	}
 
 	if ((vport->fc_flag & FC_PT2PT) &&

drivers/scsi/lpfc/lpfc_scsi.c

@@ -608,6 +608,32 @@ lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc)
 	return bcnt;
 }
 
+/**
+ * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport
+ * @vport: pointer to lpfc vport data structure.
+ *
+ * This routine is invoked by the vport cleanup for deletions and the cleanup
+ * for an ndlp on removal.
+ **/
+void
+lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_scsi_buf *psb, *next_psb;
+	unsigned long iflag = 0;
+
+	spin_lock_irqsave(&phba->hbalock, iflag);
+	spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
+	list_for_each_entry_safe(psb, next_psb,
+				&phba->sli4_hba.lpfc_abts_scsi_buf_list, list) {
+		if (psb->rdata && psb->rdata->pnode
+			&& psb->rdata->pnode->vport == vport)
+			psb->rdata = NULL;
+	}
+	spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
+	spin_unlock_irqrestore(&phba->hbalock, iflag);
+}
+
 /**
  * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort
  * @phba: pointer to lpfc hba data structure.
@@ -640,7 +666,11 @@ lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba,
 			psb->status = IOSTAT_SUCCESS;
 			spin_unlock(
 				&phba->sli4_hba.abts_scsi_buf_list_lock);
-			ndlp = psb->rdata->pnode;
+			if (psb->rdata && psb->rdata->pnode)
+				ndlp = psb->rdata->pnode;
+			else
+				ndlp = NULL;
+
 			rrq_empty = list_empty(&phba->active_rrq_list);
 			spin_unlock_irqrestore(&phba->hbalock, iflag);
 			if (ndlp)
@@ -964,36 +994,29 @@ lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 static struct lpfc_scsi_buf*
 lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 {
-	struct  lpfc_scsi_buf *lpfc_cmd = NULL;
-	struct  lpfc_scsi_buf *start_lpfc_cmd = NULL;
-	struct list_head *scsi_buf_list = &phba->lpfc_scsi_buf_list;
+	struct lpfc_scsi_buf *lpfc_cmd ;
 	unsigned long iflag = 0;
 	int found = 0;
 
 	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
-	list_remove_head(scsi_buf_list, lpfc_cmd, struct lpfc_scsi_buf, list);
-	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
-	while (!found && lpfc_cmd) {
+	list_for_each_entry(lpfc_cmd, &phba->lpfc_scsi_buf_list,
+							list) {
 		if (lpfc_test_rrq_active(phba, ndlp,
-					 lpfc_cmd->cur_iocbq.sli4_xritag)) {
-			lpfc_release_scsi_buf_s4(phba, lpfc_cmd);
-			spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
-			list_remove_head(scsi_buf_list, lpfc_cmd,
-					 struct lpfc_scsi_buf, list);
-			spin_unlock_irqrestore(&phba->scsi_buf_list_lock,
-						 iflag);
-			if (lpfc_cmd == start_lpfc_cmd) {
-				lpfc_cmd = NULL;
-				break;
-			} else
-				continue;
-		}
+					 lpfc_cmd->cur_iocbq.sli4_xritag))
+			continue;
+		list_del(&lpfc_cmd->list);
 		found = 1;
 		lpfc_cmd->seg_cnt = 0;
 		lpfc_cmd->nonsg_phys = 0;
 		lpfc_cmd->prot_seg_cnt = 0;
+		break;
 	}
-	return  lpfc_cmd;
+	spin_unlock_irqrestore(&phba->scsi_buf_list_lock,
+						 iflag);
+	if (!found)
+		return NULL;
+	else
+		return  lpfc_cmd;
 }
 /**
  * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA
@@ -1981,12 +2004,14 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
 	struct scatterlist *sgel = NULL;
 	struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
 	struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
+	struct sli4_sge *first_data_sgl;
 	IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
 	dma_addr_t physaddr;
 	uint32_t num_bde = 0;
 	uint32_t dma_len;
 	uint32_t dma_offset = 0;
 	int nseg;
+	struct ulp_bde64 *bde;
 
 	/*
 	 * There are three possibilities here - use scatter-gather segment, use
@@ -2011,7 +2036,7 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
 		bf_set(lpfc_sli4_sge_last, sgl, 0);
 		sgl->word2 = cpu_to_le32(sgl->word2);
 		sgl += 1;
-
+		first_data_sgl = sgl;
 		lpfc_cmd->seg_cnt = nseg;
 		if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:"
@@ -2047,6 +2072,17 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
 			dma_offset += dma_len;
 			sgl++;
 		}
+		/* setup the performance hint (first data BDE) if enabled */
+		if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) {
+			bde = (struct ulp_bde64 *)
+					&(iocb_cmd->unsli3.sli3Words[5]);
+			bde->addrLow = first_data_sgl->addr_lo;
+			bde->addrHigh = first_data_sgl->addr_hi;
+			bde->tus.f.bdeSize =
+					le32_to_cpu(first_data_sgl->sge_len);
+			bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+			bde->tus.w = cpu_to_le32(bde->tus.w);
+		}
 	} else {
 		sgl += 1;
 		/* clear the last flag in the fcp_rsp map entry */
@@ -2471,6 +2507,16 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 			lpfc_worker_wake_up(phba);
 			break;
 		case IOSTAT_LOCAL_REJECT:
+		case IOSTAT_REMOTE_STOP:
+			if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR ||
+			    lpfc_cmd->result ==
+					IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR ||
+			    lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR ||
+			    lpfc_cmd->result ==
+					IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) {
+				cmd->result = ScsiResult(DID_NO_CONNECT, 0);
+				break;
+			}
 			if (lpfc_cmd->result == IOERR_INVALID_RPI ||
 			    lpfc_cmd->result == IOERR_NO_RESOURCES ||
 			    lpfc_cmd->result == IOERR_ABORT_REQUESTED ||
@@ -2478,7 +2524,6 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 				cmd->result = ScsiResult(DID_REQUEUE, 0);
 				break;
 			}
-
 			if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED ||
 			     lpfc_cmd->result == IOERR_TX_DMA_FAILED) &&
 			     pIocbOut->iocb.unsli3.sli3_bg.bgstat) {
@@ -2497,7 +2542,17 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 							"on unprotected cmd\n");
 				}
 			}
-
+			if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP)
+				&& (phba->sli_rev == LPFC_SLI_REV4)
+				&& (pnode && NLP_CHK_NODE_ACT(pnode))) {
+				/* This IO was aborted by the target, we don't
+				 * know the rxid and because we did not send the
+				 * ABTS we cannot generate and RRQ.
+				 */
+				lpfc_set_rrq_active(phba, pnode,
+						lpfc_cmd->cur_iocbq.sli4_xritag,
+						0, 0);
+			}
 		/* else: fall through */
 		default:
 			cmd->result = ScsiResult(DID_ERROR, 0);
@@ -2508,9 +2563,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 		    || (pnode->nlp_state != NLP_STE_MAPPED_NODE))
 			cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED,
 						 SAM_STAT_BUSY);
-	} else {
+	} else
 		cmd->result = ScsiResult(DID_OK, 0);
-	}
 
 	if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) {
 		uint32_t *lp = (uint32_t *)cmd->sense_buffer;
@@ -3004,11 +3058,11 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 	 * transport is still transitioning.
 	 */
 	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
-		cmnd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0);
+		cmnd->result = ScsiResult(DID_IMM_RETRY, 0);
 		goto out_fail_command;
 	}
 	if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth)
-		goto out_host_busy;
+		goto out_tgt_busy;
 
 	lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp);
 	if (lpfc_cmd == NULL) {
@@ -3125,6 +3179,9 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
  out_host_busy:
 	return SCSI_MLQUEUE_HOST_BUSY;
 
+ out_tgt_busy:
+	return SCSI_MLQUEUE_TARGET_BUSY;
+
  out_fail_command:
 	done(cmnd);
 	return 0;

drivers/scsi/lpfc/lpfc_sli.c

@@ -96,7 +96,8 @@ lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
 	/* set consumption flag every once in a while */
 	if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
 		bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
-
+	if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
+		bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
 	lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
 
 	/* Update the host index before invoking device */
@@ -534,15 +535,35 @@ __lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 	uint16_t adj_xri;
 	struct lpfc_node_rrq *rrq;
 	int empty;
+	uint32_t did = 0;
+
+
+	if (!ndlp)
+		return -EINVAL;
+
+	if (!phba->cfg_enable_rrq)
+		return -EINVAL;
+
+	if (phba->pport->load_flag & FC_UNLOADING) {
+		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
+		goto out;
+	}
+	did = ndlp->nlp_DID;
 
 	/*
 	 * set the active bit even if there is no mem available.
 	 */
 	adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
-	if (!ndlp)
-		return -EINVAL;
+
+	if (NLP_CHK_FREE_REQ(ndlp))
+		goto out;
+
+	if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
+		goto out;
+
 	if (test_and_set_bit(adj_xri, ndlp->active_rrqs.xri_bitmap))
-		return -EINVAL;
+		goto out;
+
 	rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
 	if (rrq) {
 		rrq->send_rrq = send_rrq;
@@ -553,14 +574,7 @@ __lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 		rrq->vport = ndlp->vport;
 		rrq->rxid = rxid;
 		empty = list_empty(&phba->active_rrq_list);
-		if (phba->cfg_enable_rrq && send_rrq)
-			/*
-			 * We need the xri before we can add this to the
-			 * phba active rrq list.
-			 */
-			rrq->send_rrq = send_rrq;
-		else
-			rrq->send_rrq = 0;
+		rrq->send_rrq = send_rrq;
 		list_add_tail(&rrq->list, &phba->active_rrq_list);
 		if (!(phba->hba_flag & HBA_RRQ_ACTIVE)) {
 			phba->hba_flag |= HBA_RRQ_ACTIVE;
@@ -569,40 +583,49 @@ __lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 		}
 		return 0;
 	}
-	return -ENOMEM;
+out:
+	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+			"2921 Can't set rrq active xri:0x%x rxid:0x%x"
+			" DID:0x%x Send:%d\n",
+			xritag, rxid, did, send_rrq);
+	return -EINVAL;
 }
 
 /**
- * __lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
+ * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
  * @phba: Pointer to HBA context object.
  * @xritag: xri used in this exchange.
  * @rrq: The RRQ to be cleared.
  *
- * This function is called with hbalock held. This function
  **/
-static void
-__lpfc_clr_rrq_active(struct lpfc_hba *phba,
-			uint16_t xritag,
-			struct lpfc_node_rrq *rrq)
+void
+lpfc_clr_rrq_active(struct lpfc_hba *phba,
+		    uint16_t xritag,
+		    struct lpfc_node_rrq *rrq)
 {
 	uint16_t adj_xri;
-	struct lpfc_nodelist *ndlp;
+	struct lpfc_nodelist *ndlp = NULL;
 
-	ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
+	if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
+		ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
 
 	/* The target DID could have been swapped (cable swap)
 	 * we should use the ndlp from the findnode if it is
 	 * available.
 	 */
-	if (!ndlp)
+	if ((!ndlp) && rrq->ndlp)
 		ndlp = rrq->ndlp;
 
+	if (!ndlp)
+		goto out;
+
 	adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
 	if (test_and_clear_bit(adj_xri, ndlp->active_rrqs.xri_bitmap)) {
 		rrq->send_rrq = 0;
 		rrq->xritag = 0;
 		rrq->rrq_stop_time = 0;
 	}
+out:
 	mempool_free(rrq, phba->rrq_pool);
 }
 
@@ -627,34 +650,34 @@ lpfc_handle_rrq_active(struct lpfc_hba *phba)
 	struct lpfc_node_rrq *nextrrq;
 	unsigned long next_time;
 	unsigned long iflags;
+	LIST_HEAD(send_rrq);
 
 	spin_lock_irqsave(&phba->hbalock, iflags);
 	phba->hba_flag &= ~HBA_RRQ_ACTIVE;
 	next_time = jiffies + HZ * (phba->fc_ratov + 1);
 	list_for_each_entry_safe(rrq, nextrrq,
-			&phba->active_rrq_list, list) {
-		if (time_after(jiffies, rrq->rrq_stop_time)) {
-			list_del(&rrq->list);
-			if (!rrq->send_rrq)
-				/* this call will free the rrq */
-				__lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
-			else {
-			/* if we send the rrq then the completion handler
-			 *  will clear the bit in the xribitmap.
-			 */
-				spin_unlock_irqrestore(&phba->hbalock, iflags);
-				if (lpfc_send_rrq(phba, rrq)) {
-					lpfc_clr_rrq_active(phba, rrq->xritag,
-								 rrq);
-				}
-				spin_lock_irqsave(&phba->hbalock, iflags);
-			}
-		} else if  (time_before(rrq->rrq_stop_time, next_time))
+				 &phba->active_rrq_list, list) {
+		if (time_after(jiffies, rrq->rrq_stop_time))
+			list_move(&rrq->list, &send_rrq);
+		else if (time_before(rrq->rrq_stop_time, next_time))
 			next_time = rrq->rrq_stop_time;
 	}
 	spin_unlock_irqrestore(&phba->hbalock, iflags);
 	if (!list_empty(&phba->active_rrq_list))
 		mod_timer(&phba->rrq_tmr, next_time);
+	list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
+		list_del(&rrq->list);
+		if (!rrq->send_rrq)
+			/* this call will free the rrq */
+		lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
+		else if (lpfc_send_rrq(phba, rrq)) {
+			/* if we send the rrq then the completion handler
+			*  will clear the bit in the xribitmap.
+			*/
+			lpfc_clr_rrq_active(phba, rrq->xritag,
+					    rrq);
+		}
+	}
 }
 
 /**
@@ -692,29 +715,37 @@ lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
 /**
  * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
  * @vport: Pointer to vport context object.
- *
- * Remove all active RRQs for this vport from the phba->active_rrq_list and
- * clear the rrq.
+ * @ndlp: Pointer to the lpfc_node_list structure.
+ * If ndlp is NULL Remove all active RRQs for this vport from the
+ * phba->active_rrq_list and clear the rrq.
+ * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
  **/
 void
-lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport)
+lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
 {
 	struct lpfc_hba *phba = vport->phba;
 	struct lpfc_node_rrq *rrq;
 	struct lpfc_node_rrq *nextrrq;
 	unsigned long iflags;
+	LIST_HEAD(rrq_list);
 
 	if (phba->sli_rev != LPFC_SLI_REV4)
 		return;
-	spin_lock_irqsave(&phba->hbalock, iflags);
-	list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
-		if (rrq->vport == vport) {
-			list_del(&rrq->list);
-			__lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
-		}
+	if (!ndlp) {
+		lpfc_sli4_vport_delete_els_xri_aborted(vport);
+		lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
 	}
+	spin_lock_irqsave(&phba->hbalock, iflags);
+	list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
+		if ((rrq->vport == vport) && (!ndlp  || rrq->ndlp == ndlp))
+			list_move(&rrq->list, &rrq_list);
 	spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+	list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
+		list_del(&rrq->list);
+		lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
+	}
 }
 
 /**
@@ -732,24 +763,27 @@ lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
 	struct lpfc_node_rrq *nextrrq;
 	unsigned long next_time;
 	unsigned long iflags;
+	LIST_HEAD(rrq_list);
 
 	if (phba->sli_rev != LPFC_SLI_REV4)
 		return;
 	spin_lock_irqsave(&phba->hbalock, iflags);
 	phba->hba_flag &= ~HBA_RRQ_ACTIVE;
 	next_time = jiffies + HZ * (phba->fc_ratov * 2);
-	list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
+	list_splice_init(&phba->active_rrq_list, &rrq_list);
+	spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+	list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
 		list_del(&rrq->list);
-		__lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
+		lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
 	}
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
 	if (!list_empty(&phba->active_rrq_list))
 		mod_timer(&phba->rrq_tmr, next_time);
 }
 
 
 /**
- * __lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
+ * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
  * @phba: Pointer to HBA context object.
  * @ndlp: Targets nodelist pointer for this exchange.
  * @xritag the xri in the bitmap to test.
@@ -758,8 +792,8 @@ lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
  * returns 0 = rrq not active for this xri
  *         1 = rrq is valid for this xri.
  **/
-static int
-__lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
+int
+lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 			uint16_t  xritag)
 {
 	uint16_t adj_xri;
@@ -801,52 +835,6 @@ lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
 	return ret;
 }
 
-/**
- * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
- * @phba: Pointer to HBA context object.
- * @xritag: xri used in this exchange.
- * @rrq: The RRQ to be cleared.
- *
- * This function is takes the hbalock.
- **/
-void
-lpfc_clr_rrq_active(struct lpfc_hba *phba,
-			uint16_t xritag,
-			struct lpfc_node_rrq *rrq)
-{
-	unsigned long iflags;
-
-	spin_lock_irqsave(&phba->hbalock, iflags);
-	__lpfc_clr_rrq_active(phba, xritag, rrq);
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
-	return;
-}
-
-
-
-/**
- * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
- * @phba: Pointer to HBA context object.
- * @ndlp: Targets nodelist pointer for this exchange.
- * @xritag the xri in the bitmap to test.
- *
- * This function takes the hbalock.
- * returns 0 = rrq not active for this xri
- *         1 = rrq is valid for this xri.
- **/
-int
-lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
-			uint16_t  xritag)
-{
-	int ret;
-	unsigned long iflags;
-
-	spin_lock_irqsave(&phba->hbalock, iflags);
-	ret = __lpfc_test_rrq_active(phba, ndlp, xritag);
-	spin_unlock_irqrestore(&phba->hbalock, iflags);
-	return ret;
-}
-
 /**
  * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
  * @phba: Pointer to HBA context object.
@@ -884,7 +872,7 @@ __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
 			return NULL;
 		adj_xri = sglq->sli4_xritag -
 				phba->sli4_hba.max_cfg_param.xri_base;
-		if (__lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
+		if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
 			/* This xri has an rrq outstanding for this DID.
 			 * put it back in the list and get another xri.
 			 */
@@ -969,7 +957,8 @@ __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
 		} else {
 			sglq->state = SGL_FREED;
 			sglq->ndlp = NULL;
-			list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
+			list_add_tail(&sglq->list,
+				&phba->sli4_hba.lpfc_sgl_list);
 
 			/* Check if TXQ queue needs to be serviced */
 			if (pring->txq_cnt)
@@ -4817,7 +4806,10 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 				"0378 No support for fcpi mode.\n");
 		ftr_rsp++;
 	}
-
+	if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
+		phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
+	else
+		phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
 	/*
 	 * If the port cannot support the host's requested features
 	 * then turn off the global config parameters to disable the
@@ -5004,7 +4996,8 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 	spin_lock_irq(&phba->hbalock);
 	phba->link_state = LPFC_LINK_DOWN;
 	spin_unlock_irq(&phba->hbalock);
-	rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
+	if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK)
+		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 out_unset_queue:
 	/* Unset all the queues set up in this routine when error out */
 	if (rc)
@@ -10478,6 +10471,7 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	cq->type = type;
 	cq->subtype = subtype;
 	cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
+	cq->assoc_qid = eq->queue_id;
 	cq->host_index = 0;
 	cq->hba_index = 0;
 
@@ -10672,6 +10666,7 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
 		goto out;
 	}
 	mq->type = LPFC_MQ;
+	mq->assoc_qid = cq->queue_id;
 	mq->subtype = subtype;
 	mq->host_index = 0;
 	mq->hba_index = 0;
@@ -10759,6 +10754,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 		goto out;
 	}
 	wq->type = LPFC_WQ;
+	wq->assoc_qid = cq->queue_id;
 	wq->subtype = subtype;
 	wq->host_index = 0;
 	wq->hba_index = 0;
@@ -10876,6 +10872,7 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 		goto out;
 	}
 	hrq->type = LPFC_HRQ;
+	hrq->assoc_qid = cq->queue_id;
 	hrq->subtype = subtype;
 	hrq->host_index = 0;
 	hrq->hba_index = 0;
@@ -10936,6 +10933,7 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 		goto out;
 	}
 	drq->type = LPFC_DRQ;
+	drq->assoc_qid = cq->queue_id;
 	drq->subtype = subtype;
 	drq->host_index = 0;
 	drq->hba_index = 0;
@@ -11189,7 +11187,7 @@ lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 	if (!mbox)
 		return -ENOMEM;
 	length = (sizeof(struct lpfc_mbx_rq_destroy) -
-		  sizeof(struct mbox_header));
+		  sizeof(struct lpfc_sli4_cfg_mhdr));
 	lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
 			 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
 			 length, LPFC_SLI4_MBX_EMBED);
@@ -11279,7 +11277,7 @@ lpfc_sli4_post_sgl(struct lpfc_hba *phba,
 	lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
 			LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
 			sizeof(struct lpfc_mbx_post_sgl_pages) -
-			sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
+			sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
 
 	post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
 				&mbox->u.mqe.un.post_sgl_pages;
@@ -12402,7 +12400,8 @@ lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
 	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
 			 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
 			 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
-			 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
+			 sizeof(struct lpfc_sli4_cfg_mhdr),
+			 LPFC_SLI4_MBX_EMBED);
 	bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
 	       hdr_tmpl, rpi_page->page_count);
 	bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,

drivers/scsi/lpfc/lpfc_sli4.h

@@ -125,9 +125,9 @@ struct lpfc_queue {
 	uint32_t entry_count;	/* Number of entries to support on the queue */
 	uint32_t entry_size;	/* Size of each queue entry. */
 	uint32_t queue_id;	/* Queue ID assigned by the hardware */
+	uint32_t assoc_qid;     /* Queue ID associated with, for CQ/WQ/MQ */
 	struct list_head page_list;
 	uint32_t page_count;	/* Number of pages allocated for this queue */
-
 	uint32_t host_index;	/* The host's index for putting or getting */
 	uint32_t hba_index;	/* The last known hba index for get or put */
 	union sli4_qe qe[1];	/* array to index entries (must be last) */
@@ -359,6 +359,10 @@ struct lpfc_pc_sli4_params {
 	uint32_t hdr_pp_align;
 	uint32_t sgl_pages_max;
 	uint32_t sgl_pp_align;
+	uint8_t cqv;
+	uint8_t mqv;
+	uint8_t wqv;
+	uint8_t rqv;
 };
 
 /* SLI4 HBA data structure entries */
@@ -562,6 +566,8 @@ void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
 			       struct sli4_wcqe_xri_aborted *);
 void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
 			       struct sli4_wcqe_xri_aborted *);
+void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *);
+void lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *);
 int lpfc_sli4_brdreset(struct lpfc_hba *);
 int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
 void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);

drivers/scsi/lpfc/lpfc_version.h

@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2010 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.3.20"
+#define LPFC_DRIVER_VERSION "8.3.21"
 #define LPFC_DRIVER_NAME		"lpfc"
 #define LPFC_SP_DRIVER_HANDLER_NAME	"lpfc:sp"
 #define LPFC_FP_DRIVER_HANDLER_NAME	"lpfc:fp"