Merge branch 'for-linus-core' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

* 'for-linus-core' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (38 commits)
  target: Bump version to v4.1.0-rc1-ml
  target: remove custom hex2bin() implementation
  target: fix typo Assoication -> Association
  target: Update QUEUE ALGORITHM MODIFIER control page default
  target: ->map_task_SG conversion to ->map_control_SG and ->map_data_SG
  target: Follow up core updates from AGrover and HCH (round 4)
  target: Eliminate usage of struct se_mem
  target: Pass 2nd param of transport_split_cdb by value
  target: Enforce 1 page max for control cdb buffer sizes
  target: Make all control CDBs scatter-gather
  target: Implement Block Device Characteristics VPD page
  target: Fix reporting of supported VPD pages
  target: Allow for built-in target modules
  tcm_fc: Convert to wake_up_process and schedule_timeout_interruptible
  tcm_fc: Makefile cleanups
  loopback: Fix memory leak in tcm_loop_make_scsi_hba()
  loopback: Remove duplicate scsi/scsi_tcq.h include
  loopback: off by one in tcm_loop_make_naa_tpg()
  target/iblock: Remove unused iblock_dev members
  target/iblock: Use request_queue->nr_request for se_device defaults
  ...

drivers/target/loopback/Kconfig

@@ -3,9 +3,3 @@ config LOOPBACK_TARGET
 	help
 	  Say Y here to enable the TCM Virtual SAS target and Linux/SCSI LLD
 	  fabric loopback module.
-
-config LOOPBACK_TARGET_CDB_DEBUG
-	bool "TCM loopback fabric module CDB debug code"
-	depends on LOOPBACK_TARGET
-	help
-	  Say Y here to enable the TCM loopback fabric module CDB debug code

drivers/target/loopback/tcm_loop.c

@@ -31,7 +31,6 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_tcq.h>
 
 #include <target/target_core_base.h>
 #include <target/target_core_transport.h>
@@ -80,7 +79,7 @@ static struct se_cmd *tcm_loop_allocate_core_cmd(
 
 	tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_ATOMIC);
 	if (!tl_cmd) {
-		printk(KERN_ERR "Unable to allocate struct tcm_loop_cmd\n");
+		pr_err("Unable to allocate struct tcm_loop_cmd\n");
 		set_host_byte(sc, DID_ERROR);
 		return NULL;
 	}
@@ -118,17 +117,16 @@ static struct se_cmd *tcm_loop_allocate_core_cmd(
 	 * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
 	 */
 	if (scsi_bidi_cmnd(sc))
-		T_TASK(se_cmd)->t_tasks_bidi = 1;
+		se_cmd->t_tasks_bidi = 1;
 	/*
 	 * Locate the struct se_lun pointer and attach it to struct se_cmd
 	 */
-	if (transport_get_lun_for_cmd(se_cmd, NULL, tl_cmd->sc->device->lun) < 0) {
+	if (transport_lookup_cmd_lun(se_cmd, tl_cmd->sc->device->lun) < 0) {
 		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
 		set_host_byte(sc, DID_NO_CONNECT);
 		return NULL;
 	}
 
-	transport_device_setup_cmd(se_cmd);
 	return se_cmd;
 }
 
@@ -143,17 +141,17 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
 	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
 				struct tcm_loop_cmd, tl_se_cmd);
 	struct scsi_cmnd *sc = tl_cmd->sc;
-	void *mem_ptr, *mem_bidi_ptr = NULL;
-	u32 sg_no_bidi = 0;
+	struct scatterlist *sgl_bidi = NULL;
+	u32 sgl_bidi_count = 0;
 	int ret;
 	/*
 	 * Allocate the necessary tasks to complete the received CDB+data
 	 */
-	ret = transport_generic_allocate_tasks(se_cmd, tl_cmd->sc->cmnd);
-	if (ret == -1) {
+	ret = transport_generic_allocate_tasks(se_cmd, sc->cmnd);
+	if (ret == -ENOMEM) {
 		/* Out of Resources */
 		return PYX_TRANSPORT_LU_COMM_FAILURE;
-	} else if (ret == -2) {
+	} else if (ret == -EINVAL) {
 		/*
 		 * Handle case for SAM_STAT_RESERVATION_CONFLICT
 		 */
@@ -165,35 +163,21 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
 		 */
 		return PYX_TRANSPORT_USE_SENSE_REASON;
 	}
+
 	/*
-	 * Setup the struct scatterlist memory from the received
-	 * struct scsi_cmnd.
+	 * For BIDI commands, pass in the extra READ buffer
+	 * to transport_generic_map_mem_to_cmd() below..
 	 */
-	if (scsi_sg_count(sc)) {
-		se_cmd->se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM;
-		mem_ptr = (void *)scsi_sglist(sc);
-		/*
-		 * For BIDI commands, pass in the extra READ buffer
-		 * to transport_generic_map_mem_to_cmd() below..
-		 */
-		if (T_TASK(se_cmd)->t_tasks_bidi) {
-			struct scsi_data_buffer *sdb = scsi_in(sc);
+	if (se_cmd->t_tasks_bidi) {
+		struct scsi_data_buffer *sdb = scsi_in(sc);
 
-			mem_bidi_ptr = (void *)sdb->table.sgl;
-			sg_no_bidi = sdb->table.nents;
-		}
-	} else {
-		/*
-		 * Used for DMA_NONE
-		 */
-		mem_ptr = NULL;
+		sgl_bidi = sdb->table.sgl;
+		sgl_bidi_count = sdb->table.nents;
 	}
-	/*
-	 * Map the SG memory into struct se_mem->page linked list using the same
-	 * physical memory at sg->page_link.
-	 */
-	ret = transport_generic_map_mem_to_cmd(se_cmd, mem_ptr,
-			scsi_sg_count(sc), mem_bidi_ptr, sg_no_bidi);
+
+	/* Tell the core about our preallocated memory */
+	ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc),
+			scsi_sg_count(sc), sgl_bidi, sgl_bidi_count);
 	if (ret < 0)
 		return PYX_TRANSPORT_LU_COMM_FAILURE;
 
@@ -216,13 +200,10 @@ static void tcm_loop_check_stop_free(struct se_cmd *se_cmd)
 	 * Release the struct se_cmd, which will make a callback to release
 	 * struct tcm_loop_cmd * in tcm_loop_deallocate_core_cmd()
 	 */
-	transport_generic_free_cmd(se_cmd, 0, 1, 0);
+	transport_generic_free_cmd(se_cmd, 0, 0);
 }
 
-/*
- * Called from struct target_core_fabric_ops->release_cmd_to_pool()
- */
-static void tcm_loop_deallocate_core_cmd(struct se_cmd *se_cmd)
+static void tcm_loop_release_cmd(struct se_cmd *se_cmd)
 {
 	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
 				struct tcm_loop_cmd, tl_se_cmd);
@@ -300,7 +281,7 @@ static int tcm_loop_queuecommand(
 	struct tcm_loop_hba *tl_hba;
 	struct tcm_loop_tpg *tl_tpg;
 
-	TL_CDB_DEBUG("tcm_loop_queuecommand() %d:%d:%d:%d got CDB: 0x%02x"
+	pr_debug("tcm_loop_queuecommand() %d:%d:%d:%d got CDB: 0x%02x"
 		" scsi_buf_len: %u\n", sc->device->host->host_no,
 		sc->device->id, sc->device->channel, sc->device->lun,
 		sc->cmnd[0], scsi_bufflen(sc));
@@ -350,7 +331,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 	 */
 	tl_nexus = tl_hba->tl_nexus;
 	if (!tl_nexus) {
-		printk(KERN_ERR "Unable to perform device reset without"
+		pr_err("Unable to perform device reset without"
 				" active I_T Nexus\n");
 		return FAILED;
 	}
@@ -363,13 +344,13 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 
 	tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL);
 	if (!tl_cmd) {
-		printk(KERN_ERR "Unable to allocate memory for tl_cmd\n");
+		pr_err("Unable to allocate memory for tl_cmd\n");
 		return FAILED;
 	}
 
 	tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL);
 	if (!tl_tmr) {
-		printk(KERN_ERR "Unable to allocate memory for tl_tmr\n");
+		pr_err("Unable to allocate memory for tl_tmr\n");
 		goto release;
 	}
 	init_waitqueue_head(&tl_tmr->tl_tmr_wait);
@@ -384,14 +365,14 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 	/*
 	 * Allocate the LUN_RESET TMR
 	 */
-	se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, (void *)tl_tmr,
+	se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, tl_tmr,
 				TMR_LUN_RESET);
 	if (IS_ERR(se_cmd->se_tmr_req))
 		goto release;
 	/*
 	 * Locate the underlying TCM struct se_lun from sc->device->lun
 	 */
-	if (transport_get_lun_for_tmr(se_cmd, sc->device->lun) < 0)
+	if (transport_lookup_tmr_lun(se_cmd, sc->device->lun) < 0)
 		goto release;
 	/*
 	 * Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp()
@@ -407,7 +388,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 		SUCCESS : FAILED;
 release:
 	if (se_cmd)
-		transport_generic_free_cmd(se_cmd, 1, 1, 0);
+		transport_generic_free_cmd(se_cmd, 1, 0);
 	else
 		kmem_cache_free(tcm_loop_cmd_cache, tl_cmd);
 	kfree(tl_tmr);
@@ -454,7 +435,7 @@ static int tcm_loop_driver_probe(struct device *dev)
 	sh = scsi_host_alloc(&tcm_loop_driver_template,
 			sizeof(struct tcm_loop_hba));
 	if (!sh) {
-		printk(KERN_ERR "Unable to allocate struct scsi_host\n");
+		pr_err("Unable to allocate struct scsi_host\n");
 		return -ENODEV;
 	}
 	tl_hba->sh = sh;
@@ -473,7 +454,7 @@ static int tcm_loop_driver_probe(struct device *dev)
 
 	error = scsi_add_host(sh, &tl_hba->dev);
 	if (error) {
-		printk(KERN_ERR "%s: scsi_add_host failed\n", __func__);
+		pr_err("%s: scsi_add_host failed\n", __func__);
 		scsi_host_put(sh);
 		return -ENODEV;
 	}
@@ -514,7 +495,7 @@ static int tcm_loop_setup_hba_bus(struct tcm_loop_hba *tl_hba, int tcm_loop_host
 
 	ret = device_register(&tl_hba->dev);
 	if (ret) {
-		printk(KERN_ERR "device_register() failed for"
+		pr_err("device_register() failed for"
 				" tl_hba->dev: %d\n", ret);
 		return -ENODEV;
 	}
@@ -532,24 +513,24 @@ static int tcm_loop_alloc_core_bus(void)
 
 	tcm_loop_primary = root_device_register("tcm_loop_0");
 	if (IS_ERR(tcm_loop_primary)) {
-		printk(KERN_ERR "Unable to allocate tcm_loop_primary\n");
+		pr_err("Unable to allocate tcm_loop_primary\n");
 		return PTR_ERR(tcm_loop_primary);
 	}
 
 	ret = bus_register(&tcm_loop_lld_bus);
 	if (ret) {
-		printk(KERN_ERR "bus_register() failed for tcm_loop_lld_bus\n");
+		pr_err("bus_register() failed for tcm_loop_lld_bus\n");
 		goto dev_unreg;
 	}
 
 	ret = driver_register(&tcm_loop_driverfs);
 	if (ret) {
-		printk(KERN_ERR "driver_register() failed for"
+		pr_err("driver_register() failed for"
 				"tcm_loop_driverfs\n");
 		goto bus_unreg;
 	}
 
-	printk(KERN_INFO "Initialized TCM Loop Core Bus\n");
+	pr_debug("Initialized TCM Loop Core Bus\n");
 	return ret;
 
 bus_unreg:
@@ -565,7 +546,7 @@ static void tcm_loop_release_core_bus(void)
 	bus_unregister(&tcm_loop_lld_bus);
 	root_device_unregister(tcm_loop_primary);
 
-	printk(KERN_INFO "Releasing TCM Loop Core BUS\n");
+	pr_debug("Releasing TCM Loop Core BUS\n");
 }
 
 static char *tcm_loop_get_fabric_name(void)
@@ -593,7 +574,7 @@ static u8 tcm_loop_get_fabric_proto_ident(struct se_portal_group *se_tpg)
 	case SCSI_PROTOCOL_ISCSI:
 		return iscsi_get_fabric_proto_ident(se_tpg);
 	default:
-		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+		pr_err("Unknown tl_proto_id: 0x%02x, using"
 			" SAS emulation\n", tl_hba->tl_proto_id);
 		break;
 	}
@@ -649,7 +630,7 @@ static u32 tcm_loop_get_pr_transport_id(
 		return iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,
 					format_code, buf);
 	default:
-		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+		pr_err("Unknown tl_proto_id: 0x%02x, using"
 			" SAS emulation\n", tl_hba->tl_proto_id);
 		break;
 	}
@@ -679,7 +660,7 @@ static u32 tcm_loop_get_pr_transport_id_len(
 		return iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,
 					format_code);
 	default:
-		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+		pr_err("Unknown tl_proto_id: 0x%02x, using"
 			" SAS emulation\n", tl_hba->tl_proto_id);
 		break;
 	}
@@ -713,7 +694,7 @@ static char *tcm_loop_parse_pr_out_transport_id(
 		return iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,
 					port_nexus_ptr);
 	default:
-		printk(KERN_ERR "Unknown tl_proto_id: 0x%02x, using"
+		pr_err("Unknown tl_proto_id: 0x%02x, using"
 			" SAS emulation\n", tl_hba->tl_proto_id);
 		break;
 	}
@@ -762,7 +743,7 @@ static struct se_node_acl *tcm_loop_tpg_alloc_fabric_acl(
 
 	tl_nacl = kzalloc(sizeof(struct tcm_loop_nacl), GFP_KERNEL);
 	if (!tl_nacl) {
-		printk(KERN_ERR "Unable to allocate struct tcm_loop_nacl\n");
+		pr_err("Unable to allocate struct tcm_loop_nacl\n");
 		return NULL;
 	}
 
@@ -784,16 +765,6 @@ static u32 tcm_loop_get_inst_index(struct se_portal_group *se_tpg)
 	return 1;
 }
 
-static void tcm_loop_new_cmd_failure(struct se_cmd *se_cmd)
-{
-	/*
-	 * Since TCM_loop is already passing struct scatterlist data from
-	 * struct scsi_cmnd, no more Linux/SCSI failure dependent state need
-	 * to be handled here.
-	 */
-	return;
-}
-
 static int tcm_loop_is_state_remove(struct se_cmd *se_cmd)
 {
 	/*
@@ -882,7 +853,7 @@ static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
 				struct tcm_loop_cmd, tl_se_cmd);
 	struct scsi_cmnd *sc = tl_cmd->sc;
 
-	TL_CDB_DEBUG("tcm_loop_queue_data_in() called for scsi_cmnd: %p"
+	pr_debug("tcm_loop_queue_data_in() called for scsi_cmnd: %p"
 		     " cdb: 0x%02x\n", sc, sc->cmnd[0]);
 
 	sc->result = SAM_STAT_GOOD;
@@ -897,14 +868,14 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
 				struct tcm_loop_cmd, tl_se_cmd);
 	struct scsi_cmnd *sc = tl_cmd->sc;
 
-	TL_CDB_DEBUG("tcm_loop_queue_status() called for scsi_cmnd: %p"
+	pr_debug("tcm_loop_queue_status() called for scsi_cmnd: %p"
 			" cdb: 0x%02x\n", sc, sc->cmnd[0]);
 
 	if (se_cmd->sense_buffer &&
 	   ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
 	    (se_cmd->se_cmd_flags & SCF_EMULATED_TASK_SENSE))) {
 
-		memcpy((void *)sc->sense_buffer, (void *)se_cmd->sense_buffer,
+		memcpy(sc->sense_buffer, se_cmd->sense_buffer,
 				SCSI_SENSE_BUFFERSIZE);
 		sc->result = SAM_STAT_CHECK_CONDITION;
 		set_driver_byte(sc, DRIVER_SENSE);
@@ -972,7 +943,7 @@ static int tcm_loop_port_link(
 	 */
 	scsi_add_device(tl_hba->sh, 0, tl_tpg->tl_tpgt, lun->unpacked_lun);
 
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Port Link Successful\n");
+	pr_debug("TCM_Loop_ConfigFS: Port Link Successful\n");
 	return 0;
 }
 
@@ -990,7 +961,7 @@ static void tcm_loop_port_unlink(
 	sd = scsi_device_lookup(tl_hba->sh, 0, tl_tpg->tl_tpgt,
 				se_lun->unpacked_lun);
 	if (!sd) {
-		printk(KERN_ERR "Unable to locate struct scsi_device for %d:%d:"
+		pr_err("Unable to locate struct scsi_device for %d:%d:"
 			"%d\n", 0, tl_tpg->tl_tpgt, se_lun->unpacked_lun);
 		return;
 	}
@@ -1003,7 +974,7 @@ static void tcm_loop_port_unlink(
 	atomic_dec(&tl_tpg->tl_tpg_port_count);
 	smp_mb__after_atomic_dec();
 
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Port Unlink Successful\n");
+	pr_debug("TCM_Loop_ConfigFS: Port Unlink Successful\n");
 }
 
 /* End items for tcm_loop_port_cit */
@@ -1020,14 +991,14 @@ static int tcm_loop_make_nexus(
 	int ret = -ENOMEM;
 
 	if (tl_tpg->tl_hba->tl_nexus) {
-		printk(KERN_INFO "tl_tpg->tl_hba->tl_nexus already exists\n");
+		pr_debug("tl_tpg->tl_hba->tl_nexus already exists\n");
 		return -EEXIST;
 	}
 	se_tpg = &tl_tpg->tl_se_tpg;
 
 	tl_nexus = kzalloc(sizeof(struct tcm_loop_nexus), GFP_KERNEL);
 	if (!tl_nexus) {
-		printk(KERN_ERR "Unable to allocate struct tcm_loop_nexus\n");
+		pr_err("Unable to allocate struct tcm_loop_nexus\n");
 		return -ENOMEM;
 	}
 	/*
@@ -1054,9 +1025,9 @@ static int tcm_loop_make_nexus(
 	 * transport_register_session()
 	 */
 	__transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl,
-			tl_nexus->se_sess, (void *)tl_nexus);
+			tl_nexus->se_sess, tl_nexus);
 	tl_tpg->tl_hba->tl_nexus = tl_nexus;
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
+	pr_debug("TCM_Loop_ConfigFS: Established I_T Nexus to emulated"
 		" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
 		name);
 	return 0;
@@ -1082,13 +1053,13 @@ static int tcm_loop_drop_nexus(
 		return -ENODEV;
 
 	if (atomic_read(&tpg->tl_tpg_port_count)) {
-		printk(KERN_ERR "Unable to remove TCM_Loop I_T Nexus with"
+		pr_err("Unable to remove TCM_Loop I_T Nexus with"
 			" active TPG port count: %d\n",
 			atomic_read(&tpg->tl_tpg_port_count));
 		return -EPERM;
 	}
 
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Removing I_T Nexus to emulated"
+	pr_debug("TCM_Loop_ConfigFS: Removing I_T Nexus to emulated"
 		" %s Initiator Port: %s\n", tcm_loop_dump_proto_id(tl_hba),
 		tl_nexus->se_sess->se_node_acl->initiatorname);
 	/*
@@ -1144,7 +1115,7 @@ static ssize_t tcm_loop_tpg_store_nexus(
 	 * tcm_loop_make_nexus()
 	 */
 	if (strlen(page) >= TL_WWN_ADDR_LEN) {
-		printk(KERN_ERR "Emulated NAA Sas Address: %s, exceeds"
+		pr_err("Emulated NAA Sas Address: %s, exceeds"
 				" max: %d\n", page, TL_WWN_ADDR_LEN);
 		return -EINVAL;
 	}
@@ -1153,7 +1124,7 @@ static ssize_t tcm_loop_tpg_store_nexus(
 	ptr = strstr(i_port, "naa.");
 	if (ptr) {
 		if (tl_hba->tl_proto_id != SCSI_PROTOCOL_SAS) {
-			printk(KERN_ERR "Passed SAS Initiator Port %s does not"
+			pr_err("Passed SAS Initiator Port %s does not"
 				" match target port protoid: %s\n", i_port,
 				tcm_loop_dump_proto_id(tl_hba));
 			return -EINVAL;
@@ -1164,7 +1135,7 @@ static ssize_t tcm_loop_tpg_store_nexus(
 	ptr = strstr(i_port, "fc.");
 	if (ptr) {
 		if (tl_hba->tl_proto_id != SCSI_PROTOCOL_FCP) {
-			printk(KERN_ERR "Passed FCP Initiator Port %s does not"
+			pr_err("Passed FCP Initiator Port %s does not"
 				" match target port protoid: %s\n", i_port,
 				tcm_loop_dump_proto_id(tl_hba));
 			return -EINVAL;
@@ -1175,7 +1146,7 @@ static ssize_t tcm_loop_tpg_store_nexus(
 	ptr = strstr(i_port, "iqn.");
 	if (ptr) {
 		if (tl_hba->tl_proto_id != SCSI_PROTOCOL_ISCSI) {
-			printk(KERN_ERR "Passed iSCSI Initiator Port %s does not"
+			pr_err("Passed iSCSI Initiator Port %s does not"
 				" match target port protoid: %s\n", i_port,
 				tcm_loop_dump_proto_id(tl_hba));
 			return -EINVAL;
@@ -1183,7 +1154,7 @@ static ssize_t tcm_loop_tpg_store_nexus(
 		port_ptr = &i_port[0];
 		goto check_newline;
 	}
-	printk(KERN_ERR "Unable to locate prefix for emulated Initiator Port:"
+	pr_err("Unable to locate prefix for emulated Initiator Port:"
 			" %s\n", i_port);
 	return -EINVAL;
 	/*
@@ -1223,15 +1194,15 @@ struct se_portal_group *tcm_loop_make_naa_tpg(
 
 	tpgt_str = strstr(name, "tpgt_");
 	if (!tpgt_str) {
-		printk(KERN_ERR "Unable to locate \"tpgt_#\" directory"
+		pr_err("Unable to locate \"tpgt_#\" directory"
 				" group\n");
 		return ERR_PTR(-EINVAL);
 	}
 	tpgt_str += 5; /* Skip ahead of "tpgt_" */
 	tpgt = (unsigned short int) simple_strtoul(tpgt_str, &end_ptr, 0);
 
-	if (tpgt > TL_TPGS_PER_HBA) {
-		printk(KERN_ERR "Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:"
+	if (tpgt >= TL_TPGS_PER_HBA) {
+		pr_err("Passed tpgt: %hu exceeds TL_TPGS_PER_HBA:"
 				" %u\n", tpgt, TL_TPGS_PER_HBA);
 		return ERR_PTR(-EINVAL);
 	}
@@ -1242,12 +1213,12 @@ struct se_portal_group *tcm_loop_make_naa_tpg(
 	 * Register the tl_tpg as a emulated SAS TCM Target Endpoint
 	 */
 	ret = core_tpg_register(&tcm_loop_fabric_configfs->tf_ops,
-			wwn, &tl_tpg->tl_se_tpg, (void *)tl_tpg,
+			wwn, &tl_tpg->tl_se_tpg, tl_tpg,
 			TRANSPORT_TPG_TYPE_NORMAL);
 	if (ret < 0)
 		return ERR_PTR(-ENOMEM);
 
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated Emulated %s"
+	pr_debug("TCM_Loop_ConfigFS: Allocated Emulated %s"
 		" Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba),
 		config_item_name(&wwn->wwn_group.cg_item), tpgt);
 
@@ -1274,7 +1245,7 @@ void tcm_loop_drop_naa_tpg(
 	 */
 	core_tpg_deregister(se_tpg);
 
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated Emulated %s"
+	pr_debug("TCM_Loop_ConfigFS: Deallocated Emulated %s"
 		" Target Port %s,t,0x%04x\n", tcm_loop_dump_proto_id(tl_hba),
 		config_item_name(&wwn->wwn_group.cg_item), tpgt);
 }
@@ -1295,7 +1266,7 @@ struct se_wwn *tcm_loop_make_scsi_hba(
 
 	tl_hba = kzalloc(sizeof(struct tcm_loop_hba), GFP_KERNEL);
 	if (!tl_hba) {
-		printk(KERN_ERR "Unable to allocate struct tcm_loop_hba\n");
+		pr_err("Unable to allocate struct tcm_loop_hba\n");
 		return ERR_PTR(-ENOMEM);
 	}
 	/*
@@ -1314,22 +1285,21 @@ struct se_wwn *tcm_loop_make_scsi_hba(
 		goto check_len;
 	}
 	ptr = strstr(name, "iqn.");
-	if (ptr) {
-		tl_hba->tl_proto_id = SCSI_PROTOCOL_ISCSI;
-		goto check_len;
+	if (!ptr) {
+		pr_err("Unable to locate prefix for emulated Target "
+				"Port: %s\n", name);
+		ret = -EINVAL;
+		goto out;
 	}
-
-	printk(KERN_ERR "Unable to locate prefix for emulated Target Port:"
-			" %s\n", name);
-	return ERR_PTR(-EINVAL);
+	tl_hba->tl_proto_id = SCSI_PROTOCOL_ISCSI;
 
 check_len:
 	if (strlen(name) >= TL_WWN_ADDR_LEN) {
-		printk(KERN_ERR "Emulated NAA %s Address: %s, exceeds"
+		pr_err("Emulated NAA %s Address: %s, exceeds"
 			" max: %d\n", name, tcm_loop_dump_proto_id(tl_hba),
 			TL_WWN_ADDR_LEN);
-		kfree(tl_hba);
-		return ERR_PTR(-EINVAL);
+		ret = -EINVAL;
+		goto out;
 	}
 	snprintf(&tl_hba->tl_wwn_address[0], TL_WWN_ADDR_LEN, "%s", &name[off]);
 
@@ -1344,7 +1314,7 @@ check_len:
 
 	sh = tl_hba->sh;
 	tcm_loop_hba_no_cnt++;
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Allocated emulated Target"
+	pr_debug("TCM_Loop_ConfigFS: Allocated emulated Target"
 		" %s Address: %s at Linux/SCSI Host ID: %d\n",
 		tcm_loop_dump_proto_id(tl_hba), name, sh->host_no);
 
@@ -1367,7 +1337,7 @@ void tcm_loop_drop_scsi_hba(
 	 */
 	device_unregister(&tl_hba->dev);
 
-	printk(KERN_INFO "TCM_Loop_ConfigFS: Deallocated emulated Target"
+	pr_debug("TCM_Loop_ConfigFS: Deallocated emulated Target"
 		" SAS Address: %s at Linux/SCSI Host ID: %d\n",
 		config_item_name(&wwn->wwn_group.cg_item), host_no);
 }
@@ -1402,9 +1372,9 @@ static int tcm_loop_register_configfs(void)
 	 * Register the top level struct config_item_type with TCM core
 	 */
 	fabric = target_fabric_configfs_init(THIS_MODULE, "loopback");
-	if (!fabric) {
-		printk(KERN_ERR "tcm_loop_register_configfs() failed!\n");
-		return -1;
+	if (IS_ERR(fabric)) {
+		pr_err("tcm_loop_register_configfs() failed!\n");
+		return PTR_ERR(fabric);
 	}
 	/*
 	 * Setup the fabric API of function pointers used by target_core_mod
@@ -1435,20 +1405,12 @@ static int tcm_loop_register_configfs(void)
 	fabric->tf_ops.tpg_release_fabric_acl =
 					&tcm_loop_tpg_release_fabric_acl;
 	fabric->tf_ops.tpg_get_inst_index = &tcm_loop_get_inst_index;
-	/*
-	 * Since tcm_loop is mapping physical memory from Linux/SCSI
-	 * struct scatterlist arrays for each struct scsi_cmnd I/O,
-	 * we do not need TCM to allocate a iovec array for
-	 * virtual memory address mappings
-	 */
-	fabric->tf_ops.alloc_cmd_iovecs = NULL;
 	/*
 	 * Used for setting up remaining TCM resources in process context
 	 */
 	fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map;
 	fabric->tf_ops.check_stop_free = &tcm_loop_check_stop_free;
-	fabric->tf_ops.release_cmd_to_pool = &tcm_loop_deallocate_core_cmd;
-	fabric->tf_ops.release_cmd_direct = &tcm_loop_deallocate_core_cmd;
+	fabric->tf_ops.release_cmd = &tcm_loop_release_cmd;
 	fabric->tf_ops.shutdown_session = &tcm_loop_shutdown_session;
 	fabric->tf_ops.close_session = &tcm_loop_close_session;
 	fabric->tf_ops.stop_session = &tcm_loop_stop_session;
@@ -1465,7 +1427,6 @@ static int tcm_loop_register_configfs(void)
 					&tcm_loop_set_default_node_attributes;
 	fabric->tf_ops.get_task_tag = &tcm_loop_get_task_tag;
 	fabric->tf_ops.get_cmd_state = &tcm_loop_get_cmd_state;
-	fabric->tf_ops.new_cmd_failure = &tcm_loop_new_cmd_failure;
 	fabric->tf_ops.queue_data_in = &tcm_loop_queue_data_in;
 	fabric->tf_ops.queue_status = &tcm_loop_queue_status;
 	fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp;
@@ -1503,7 +1464,7 @@ static int tcm_loop_register_configfs(void)
 	 */
 	ret = target_fabric_configfs_register(fabric);
 	if (ret < 0) {
-		printk(KERN_ERR "target_fabric_configfs_register() for"
+		pr_err("target_fabric_configfs_register() for"
 				" TCM_Loop failed!\n");
 		target_fabric_configfs_free(fabric);
 		return -1;
@@ -1512,7 +1473,7 @@ static int tcm_loop_register_configfs(void)
 	 * Setup our local pointer to *fabric.
 	 */
 	tcm_loop_fabric_configfs = fabric;
-	printk(KERN_INFO "TCM_LOOP[0] - Set fabric ->"
+	pr_debug("TCM_LOOP[0] - Set fabric ->"
 			" tcm_loop_fabric_configfs\n");
 	return 0;
 }
@@ -1524,7 +1485,7 @@ static void tcm_loop_deregister_configfs(void)
 
 	target_fabric_configfs_deregister(tcm_loop_fabric_configfs);
 	tcm_loop_fabric_configfs = NULL;
-	printk(KERN_INFO "TCM_LOOP[0] - Cleared"
+	pr_debug("TCM_LOOP[0] - Cleared"
 				" tcm_loop_fabric_configfs\n");
 }
 
@@ -1537,7 +1498,7 @@ static int __init tcm_loop_fabric_init(void)
 				__alignof__(struct tcm_loop_cmd),
 				0, NULL);
 	if (!tcm_loop_cmd_cache) {
-		printk(KERN_ERR "kmem_cache_create() for"
+		pr_debug("kmem_cache_create() for"
 			" tcm_loop_cmd_cache failed\n");
 		return -ENOMEM;
 	}

drivers/target/loopback/tcm_loop.h

@@ -16,12 +16,6 @@
  */
 #define TL_SCSI_MAX_CMD_LEN		32
 
-#ifdef CONFIG_LOOPBACK_TARGET_CDB_DEBUG
-# define TL_CDB_DEBUG(x...)		printk(KERN_INFO x)
-#else
-# define TL_CDB_DEBUG(x...)
-#endif
-
 struct tcm_loop_cmd {
 	/* State of Linux/SCSI CDB+Data descriptor */
 	u32 sc_cmd_state;

drivers/target/target_core_fabric_configfs.c

@@ -60,7 +60,7 @@ static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf)
 	cit->ct_group_ops = _group_ops;					\
 	cit->ct_attrs = _attrs;						\
 	cit->ct_owner = tf->tf_module;					\
-	printk("Setup generic %s\n", __stringify(_name));		\
+	pr_debug("Setup generic %s\n", __stringify(_name));		\
 }
 
 /* Start of tfc_tpg_mappedlun_cit */
@@ -80,8 +80,8 @@ static int target_fabric_mappedlun_link(
 	/*
 	 * Ensure that the source port exists
 	 */
-	if (!(lun->lun_sep) || !(lun->lun_sep->sep_tpg)) {
-		printk(KERN_ERR "Source se_lun->lun_sep or lun->lun_sep->sep"
+	if (!lun->lun_sep || !lun->lun_sep->sep_tpg) {
+		pr_err("Source se_lun->lun_sep or lun->lun_sep->sep"
 				"_tpg does not exist\n");
 		return -EINVAL;
 	}
@@ -96,12 +96,12 @@ static int target_fabric_mappedlun_link(
 	 * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT
 	 */
 	if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) {
-		printk(KERN_ERR "Illegal Initiator ACL SymLink outside of %s\n",
+		pr_err("Illegal Initiator ACL SymLink outside of %s\n",
 			config_item_name(wwn_ci));
 		return -EINVAL;
 	}
 	if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) {
-		printk(KERN_ERR "Illegal Initiator ACL Symlink outside of %s"
+		pr_err("Illegal Initiator ACL Symlink outside of %s"
 			" TPGT: %s\n", config_item_name(wwn_ci),
 			config_item_name(tpg_ci));
 		return -EINVAL;
@@ -118,7 +118,7 @@ static int target_fabric_mappedlun_link(
 		lun_access = deve->lun_flags;
 	else
 		lun_access =
-			(TPG_TFO(se_tpg)->tpg_check_prod_mode_write_protect(
+			(se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect(
 				se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY :
 					   TRANSPORT_LUNFLAGS_READ_WRITE;
 	spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock);
@@ -147,7 +147,7 @@ static int target_fabric_mappedlun_unlink(
 	/*
 	 * Determine if the underlying MappedLUN has already been released..
 	 */
-	if (!(deve->se_lun))
+	if (!deve->se_lun)
 		return 0;
 
 	lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group);
@@ -202,9 +202,9 @@ static ssize_t target_fabric_mappedlun_store_write_protect(
 			TRANSPORT_LUNFLAGS_READ_WRITE,
 			lacl->se_lun_nacl);
 
-	printk(KERN_INFO "%s_ConfigFS: Changed Initiator ACL: %s"
+	pr_debug("%s_ConfigFS: Changed Initiator ACL: %s"
 		" Mapped LUN: %u Write Protect bit to %s\n",
-		TPG_TFO(se_tpg)->get_fabric_name(),
+		se_tpg->se_tpg_tfo->get_fabric_name(),
 		lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF");
 
 	return count;
@@ -327,14 +327,14 @@ static struct config_group *target_fabric_make_mappedlun(
 	int ret = 0;
 
 	acl_ci = &group->cg_item;
-	if (!(acl_ci)) {
-		printk(KERN_ERR "Unable to locatel acl_ci\n");
+	if (!acl_ci) {
+		pr_err("Unable to locatel acl_ci\n");
 		return NULL;
 	}
 
 	buf = kzalloc(strlen(name) + 1, GFP_KERNEL);
-	if (!(buf)) {
-		printk(KERN_ERR "Unable to allocate memory for name buf\n");
+	if (!buf) {
+		pr_err("Unable to allocate memory for name buf\n");
 		return ERR_PTR(-ENOMEM);
 	}
 	snprintf(buf, strlen(name) + 1, "%s", name);
@@ -342,7 +342,7 @@ static struct config_group *target_fabric_make_mappedlun(
 	 * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID.
 	 */
 	if (strstr(buf, "lun_") != buf) {
-		printk(KERN_ERR "Unable to locate \"lun_\" from buf: %s"
+		pr_err("Unable to locate \"lun_\" from buf: %s"
 			" name: %s\n", buf, name);
 		ret = -EINVAL;
 		goto out;
@@ -358,7 +358,7 @@ static struct config_group *target_fabric_make_mappedlun(
 
 	lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun,
 			config_item_name(acl_ci), &ret);
-	if (!(lacl)) {
+	if (!lacl) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -367,7 +367,7 @@ static struct config_group *target_fabric_make_mappedlun(
 	lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
 				GFP_KERNEL);
 	if (!lacl_cg->default_groups) {
-		printk(KERN_ERR "Unable to allocate lacl_cg->default_groups\n");
+		pr_err("Unable to allocate lacl_cg->default_groups\n");
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -379,11 +379,11 @@ static struct config_group *target_fabric_make_mappedlun(
 	lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
 	lacl_cg->default_groups[1] = NULL;
 
-	ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	ml_stat_grp = &lacl->ml_stat_grps.stat_group;
 	ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3,
 				GFP_KERNEL);
 	if (!ml_stat_grp->default_groups) {
-		printk(KERN_ERR "Unable to allocate ml_stat_grp->default_groups\n");
+		pr_err("Unable to allocate ml_stat_grp->default_groups\n");
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -408,7 +408,7 @@ static void target_fabric_drop_mappedlun(
 	struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL;
 	int i;
 
-	ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	ml_stat_grp = &lacl->ml_stat_grps.stat_group;
 	for (i = 0; ml_stat_grp->default_groups[i]; i++) {
 		df_item = &ml_stat_grp->default_groups[i]->cg_item;
 		ml_stat_grp->default_groups[i] = NULL;
@@ -474,8 +474,8 @@ static struct config_group *target_fabric_make_nodeacl(
 	struct se_node_acl *se_nacl;
 	struct config_group *nacl_cg;
 
-	if (!(tf->tf_ops.fabric_make_nodeacl)) {
-		printk(KERN_ERR "tf->tf_ops.fabric_make_nodeacl is NULL\n");
+	if (!tf->tf_ops.fabric_make_nodeacl) {
+		pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n");
 		return ERR_PTR(-ENOSYS);
 	}
 
@@ -572,13 +572,13 @@ static struct config_group *target_fabric_make_np(
 	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
 	struct se_tpg_np *se_tpg_np;
 
-	if (!(tf->tf_ops.fabric_make_np)) {
-		printk(KERN_ERR "tf->tf_ops.fabric_make_np is NULL\n");
+	if (!tf->tf_ops.fabric_make_np) {
+		pr_err("tf->tf_ops.fabric_make_np is NULL\n");
 		return ERR_PTR(-ENOSYS);
 	}
 
 	se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name);
-	if (!(se_tpg_np) || IS_ERR(se_tpg_np))
+	if (!se_tpg_np || IS_ERR(se_tpg_np))
 		return ERR_PTR(-EINVAL);
 
 	se_tpg_np->tpg_np_parent = se_tpg;
@@ -627,10 +627,7 @@ static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp(
 	struct se_lun *lun,
 	char *page)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_show_tg_pt_gp_info(lun->lun_sep, page);
@@ -641,10 +638,7 @@ static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp(
 	const char *page,
 	size_t count)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count);
@@ -659,10 +653,7 @@ static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline(
 	struct se_lun *lun,
 	char *page)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_show_offline_bit(lun, page);
@@ -673,10 +664,7 @@ static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline(
 	const char *page,
 	size_t count)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_store_offline_bit(lun, page, count);
@@ -691,10 +679,7 @@ static ssize_t target_fabric_port_show_attr_alua_tg_pt_status(
 	struct se_lun *lun,
 	char *page)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_show_secondary_status(lun, page);
@@ -705,10 +690,7 @@ static ssize_t target_fabric_port_store_attr_alua_tg_pt_status(
 	const char *page,
 	size_t count)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_store_secondary_status(lun, page, count);
@@ -723,10 +705,7 @@ static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md(
 	struct se_lun *lun,
 	char *page)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_show_secondary_write_metadata(lun, page);
@@ -737,10 +716,7 @@ static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md(
 	const char *page,
 	size_t count)
 {
-	if (!(lun))
-		return -ENODEV;
-
-	if (!(lun->lun_sep))
+	if (!lun || !lun->lun_sep)
 		return -ENODEV;
 
 	return core_alua_store_secondary_write_metadata(lun, page, count);
@@ -781,13 +757,13 @@ static int target_fabric_port_link(
 	tf = se_tpg->se_tpg_wwn->wwn_tf;
 
 	if (lun->lun_se_dev !=  NULL) {
-		printk(KERN_ERR "Port Symlink already exists\n");
+		pr_err("Port Symlink already exists\n");
 		return -EEXIST;
 	}
 
 	dev = se_dev->se_dev_ptr;
-	if (!(dev)) {
-		printk(KERN_ERR "Unable to locate struct se_device pointer from"
+	if (!dev) {
+		pr_err("Unable to locate struct se_device pointer from"
 			" %s\n", config_item_name(se_dev_ci));
 		ret = -ENODEV;
 		goto out;
@@ -795,8 +771,8 @@ static int target_fabric_port_link(
 
 	lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev,
 				lun->unpacked_lun);
-	if ((IS_ERR(lun_p)) || !(lun_p)) {
-		printk(KERN_ERR "core_dev_add_lun() failed\n");
+	if (IS_ERR(lun_p) || !lun_p) {
+		pr_err("core_dev_add_lun() failed\n");
 		ret = -EINVAL;
 		goto out;
 	}
@@ -888,7 +864,7 @@ static struct config_group *target_fabric_make_lun(
 	int errno;
 
 	if (strstr(name, "lun_") != name) {
-		printk(KERN_ERR "Unable to locate \'_\" in"
+		pr_err("Unable to locate \'_\" in"
 				" \"lun_$LUN_NUMBER\"\n");
 		return ERR_PTR(-EINVAL);
 	}
@@ -896,14 +872,14 @@ static struct config_group *target_fabric_make_lun(
 		return ERR_PTR(-EINVAL);
 
 	lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
-	if (!(lun))
+	if (!lun)
 		return ERR_PTR(-EINVAL);
 
 	lun_cg = &lun->lun_group;
 	lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
 				GFP_KERNEL);
 	if (!lun_cg->default_groups) {
-		printk(KERN_ERR "Unable to allocate lun_cg->default_groups\n");
+		pr_err("Unable to allocate lun_cg->default_groups\n");
 		return ERR_PTR(-ENOMEM);
 	}
 
@@ -914,11 +890,11 @@ static struct config_group *target_fabric_make_lun(
 	lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
 	lun_cg->default_groups[1] = NULL;
 
-	port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	port_stat_grp = &lun->port_stat_grps.stat_group;
 	port_stat_grp->default_groups =  kzalloc(sizeof(struct config_group) * 3,
 				GFP_KERNEL);
 	if (!port_stat_grp->default_groups) {
-		printk(KERN_ERR "Unable to allocate port_stat_grp->default_groups\n");
+		pr_err("Unable to allocate port_stat_grp->default_groups\n");
 		errno = -ENOMEM;
 		goto out;
 	}
@@ -941,7 +917,7 @@ static void target_fabric_drop_lun(
 	struct config_group *lun_cg, *port_stat_grp;
 	int i;
 
-	port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	port_stat_grp = &lun->port_stat_grps.stat_group;
 	for (i = 0; port_stat_grp->default_groups[i]; i++) {
 		df_item = &port_stat_grp->default_groups[i]->cg_item;
 		port_stat_grp->default_groups[i] = NULL;
@@ -1031,13 +1007,13 @@ static struct config_group *target_fabric_make_tpg(
 	struct target_fabric_configfs *tf = wwn->wwn_tf;
 	struct se_portal_group *se_tpg;
 
-	if (!(tf->tf_ops.fabric_make_tpg)) {
-		printk(KERN_ERR "tf->tf_ops.fabric_make_tpg is NULL\n");
+	if (!tf->tf_ops.fabric_make_tpg) {
+		pr_err("tf->tf_ops.fabric_make_tpg is NULL\n");
 		return ERR_PTR(-ENOSYS);
 	}
 
 	se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name);
-	if (!(se_tpg) || IS_ERR(se_tpg))
+	if (!se_tpg || IS_ERR(se_tpg))
 		return ERR_PTR(-EINVAL);
 	/*
 	 * Setup default groups from pre-allocated se_tpg->tpg_default_groups
@@ -1130,13 +1106,13 @@ static struct config_group *target_fabric_make_wwn(
 				struct target_fabric_configfs, tf_group);
 	struct se_wwn *wwn;
 
-	if (!(tf->tf_ops.fabric_make_wwn)) {
-		printk(KERN_ERR "tf->tf_ops.fabric_make_wwn is NULL\n");
+	if (!tf->tf_ops.fabric_make_wwn) {
+		pr_err("tf->tf_ops.fabric_make_wwn is NULL\n");
 		return ERR_PTR(-ENOSYS);
 	}
 
 	wwn = tf->tf_ops.fabric_make_wwn(tf, group, name);
-	if (!(wwn) || IS_ERR(wwn))
+	if (!wwn || IS_ERR(wwn))
 		return ERR_PTR(-EINVAL);
 
 	wwn->wwn_tf = tf;

drivers/target/target_core_fabric_lib.c

@@ -25,6 +25,7 @@
  *
  ******************************************************************************/
 
+#include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/ctype.h>
 #include <linux/spinlock.h>
@@ -61,9 +62,8 @@ u32 sas_get_pr_transport_id(
 	int *format_code,
 	unsigned char *buf)
 {
-	unsigned char binary, *ptr;
-	int i;
-	u32 off = 4;
+	unsigned char *ptr;
+
 	/*
 	 * Set PROTOCOL IDENTIFIER to 6h for SAS
 	 */
@@ -74,10 +74,8 @@ u32 sas_get_pr_transport_id(
 	 */
 	ptr = &se_nacl->initiatorname[4]; /* Skip over 'naa. prefix */
 
-	for (i = 0; i < 16; i += 2) {
-		binary = transport_asciihex_to_binaryhex(&ptr[i]);
-		buf[off++] = binary;
-	}
+	hex2bin(&buf[4], ptr, 8);
+
 	/*
 	 * The SAS Transport ID is a hardcoded 24-byte length
 	 */
@@ -157,7 +155,7 @@ u32 fc_get_pr_transport_id(
 	int *format_code,
 	unsigned char *buf)
 {
-	unsigned char binary, *ptr;
+	unsigned char *ptr;
 	int i;
 	u32 off = 8;
 	/*
@@ -172,12 +170,11 @@ u32 fc_get_pr_transport_id(
 	ptr = &se_nacl->initiatorname[0];
 
 	for (i = 0; i < 24; ) {
-		if (!(strncmp(&ptr[i], ":", 1))) {
+		if (!strncmp(&ptr[i], ":", 1)) {
 			i++;
 			continue;
 		}
-		binary = transport_asciihex_to_binaryhex(&ptr[i]);
-		buf[off++] = binary;
+		hex2bin(&buf[off++], &ptr[i], 1);
 		i += 2;
 	}
 	/*
@@ -386,7 +383,7 @@ char *iscsi_parse_pr_out_transport_id(
 	 *            Reserved
 	 */
 	if ((format_code != 0x00) && (format_code != 0x40)) {
-		printk(KERN_ERR "Illegal format code: 0x%02x for iSCSI"
+		pr_err("Illegal format code: 0x%02x for iSCSI"
 			" Initiator Transport ID\n", format_code);
 		return NULL;
 	}
@@ -406,7 +403,7 @@ char *iscsi_parse_pr_out_transport_id(
 			tid_len += padding;
 
 		if ((add_len + 4) != tid_len) {
-			printk(KERN_INFO "LIO-Target Extracted add_len: %hu "
+			pr_debug("LIO-Target Extracted add_len: %hu "
 				"does not match calculated tid_len: %u,"
 				" using tid_len instead\n", add_len+4, tid_len);
 			*out_tid_len = tid_len;
@@ -420,8 +417,8 @@ char *iscsi_parse_pr_out_transport_id(
 	 */
 	if (format_code == 0x40) {
 		p = strstr((char *)&buf[4], ",i,0x");
-		if (!(p)) {
-			printk(KERN_ERR "Unable to locate \",i,0x\" seperator"
+		if (!p) {
+			pr_err("Unable to locate \",i,0x\" seperator"
 				" for Initiator port identifier: %s\n",
 				(char *)&buf[4]);
 			return NULL;

drivers/target/target_core_file.c

@@ -42,18 +42,6 @@
 
 #include "target_core_file.h"
 
-#if 1
-#define DEBUG_FD_CACHE(x...) printk(x)
-#else
-#define DEBUG_FD_CACHE(x...)
-#endif
-
-#if 1
-#define DEBUG_FD_FUA(x...) printk(x)
-#else
-#define DEBUG_FD_FUA(x...)
-#endif
-
 static struct se_subsystem_api fileio_template;
 
 /*	fd_attach_hba(): (Part of se_subsystem_api_t template)
@@ -65,24 +53,21 @@ static int fd_attach_hba(struct se_hba *hba, u32 host_id)
 	struct fd_host *fd_host;
 
 	fd_host = kzalloc(sizeof(struct fd_host), GFP_KERNEL);
-	if (!(fd_host)) {
-		printk(KERN_ERR "Unable to allocate memory for struct fd_host\n");
-		return -1;
+	if (!fd_host) {
+		pr_err("Unable to allocate memory for struct fd_host\n");
+		return -ENOMEM;
 	}
 
 	fd_host->fd_host_id = host_id;
 
-	atomic_set(&hba->left_queue_depth, FD_HBA_QUEUE_DEPTH);
-	atomic_set(&hba->max_queue_depth, FD_HBA_QUEUE_DEPTH);
-	hba->hba_ptr = (void *) fd_host;
+	hba->hba_ptr = fd_host;
 
-	printk(KERN_INFO "CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic"
+	pr_debug("CORE_HBA[%d] - TCM FILEIO HBA Driver %s on Generic"
 		" Target Core Stack %s\n", hba->hba_id, FD_VERSION,
 		TARGET_CORE_MOD_VERSION);
-	printk(KERN_INFO "CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic"
-		" Target Core with TCQ Depth: %d MaxSectors: %u\n",
-		hba->hba_id, fd_host->fd_host_id,
-		atomic_read(&hba->max_queue_depth), FD_MAX_SECTORS);
+	pr_debug("CORE_HBA[%d] - Attached FILEIO HBA: %u to Generic"
+		" MaxSectors: %u\n",
+		hba->hba_id, fd_host->fd_host_id, FD_MAX_SECTORS);
 
 	return 0;
 }
@@ -91,7 +76,7 @@ static void fd_detach_hba(struct se_hba *hba)
 {
 	struct fd_host *fd_host = hba->hba_ptr;
 
-	printk(KERN_INFO "CORE_HBA[%d] - Detached FILEIO HBA: %u from Generic"
+	pr_debug("CORE_HBA[%d] - Detached FILEIO HBA: %u from Generic"
 		" Target Core\n", hba->hba_id, fd_host->fd_host_id);
 
 	kfree(fd_host);
@@ -104,14 +89,14 @@ static void *fd_allocate_virtdevice(struct se_hba *hba, const char *name)
 	struct fd_host *fd_host = (struct fd_host *) hba->hba_ptr;
 
 	fd_dev = kzalloc(sizeof(struct fd_dev), GFP_KERNEL);
-	if (!(fd_dev)) {
-		printk(KERN_ERR "Unable to allocate memory for struct fd_dev\n");
+	if (!fd_dev) {
+		pr_err("Unable to allocate memory for struct fd_dev\n");
 		return NULL;
 	}
 
 	fd_dev->fd_host = fd_host;
 
-	printk(KERN_INFO "FILEIO: Allocated fd_dev for %p\n", name);
+	pr_debug("FILEIO: Allocated fd_dev for %p\n", name);
 
 	return fd_dev;
 }
@@ -144,7 +129,7 @@ static struct se_device *fd_create_virtdevice(
 	set_fs(old_fs);
 
 	if (IS_ERR(dev_p)) {
-		printk(KERN_ERR "getname(%s) failed: %lu\n",
+		pr_err("getname(%s) failed: %lu\n",
 			fd_dev->fd_dev_name, IS_ERR(dev_p));
 		ret = PTR_ERR(dev_p);
 		goto fail;
@@ -167,12 +152,12 @@ static struct se_device *fd_create_virtdevice(
 
 	file = filp_open(dev_p, flags, 0600);
 	if (IS_ERR(file)) {
-		printk(KERN_ERR "filp_open(%s) failed\n", dev_p);
+		pr_err("filp_open(%s) failed\n", dev_p);
 		ret = PTR_ERR(file);
 		goto fail;
 	}
 	if (!file || !file->f_dentry) {
-		printk(KERN_ERR "filp_open(%s) failed\n", dev_p);
+		pr_err("filp_open(%s) failed\n", dev_p);
 		goto fail;
 	}
 	fd_dev->fd_file = file;
@@ -202,14 +187,14 @@ static struct se_device *fd_create_virtdevice(
 		fd_dev->fd_dev_size = (i_size_read(file->f_mapping->host) -
 				       fd_dev->fd_block_size);
 
-		printk(KERN_INFO "FILEIO: Using size: %llu bytes from struct"
+		pr_debug("FILEIO: Using size: %llu bytes from struct"
 			" block_device blocks: %llu logical_block_size: %d\n",
 			fd_dev->fd_dev_size,
 			div_u64(fd_dev->fd_dev_size, fd_dev->fd_block_size),
 			fd_dev->fd_block_size);
 	} else {
 		if (!(fd_dev->fbd_flags & FBDF_HAS_SIZE)) {
-			printk(KERN_ERR "FILEIO: Missing fd_dev_size="
+			pr_err("FILEIO: Missing fd_dev_size="
 				" parameter, and no backing struct"
 				" block_device\n");
 			goto fail;
@@ -226,15 +211,15 @@ static struct se_device *fd_create_virtdevice(
 	dev_limits.queue_depth = FD_DEVICE_QUEUE_DEPTH;
 
 	dev = transport_add_device_to_core_hba(hba, &fileio_template,
-				se_dev, dev_flags, (void *)fd_dev,
+				se_dev, dev_flags, fd_dev,
 				&dev_limits, "FILEIO", FD_VERSION);
-	if (!(dev))
+	if (!dev)
 		goto fail;
 
 	fd_dev->fd_dev_id = fd_host->fd_host_dev_id_count++;
 	fd_dev->fd_queue_depth = dev->queue_depth;
 
-	printk(KERN_INFO "CORE_FILE[%u] - Added TCM FILEIO Device ID: %u at %s,"
+	pr_debug("CORE_FILE[%u] - Added TCM FILEIO Device ID: %u at %s,"
 		" %llu total bytes\n", fd_host->fd_host_id, fd_dev->fd_dev_id,
 			fd_dev->fd_dev_name, fd_dev->fd_dev_size);
 
@@ -272,45 +257,45 @@ static inline struct fd_request *FILE_REQ(struct se_task *task)
 
 
 static struct se_task *
-fd_alloc_task(struct se_cmd *cmd)
+fd_alloc_task(unsigned char *cdb)
 {
 	struct fd_request *fd_req;
 
 	fd_req = kzalloc(sizeof(struct fd_request), GFP_KERNEL);
-	if (!(fd_req)) {
-		printk(KERN_ERR "Unable to allocate struct fd_request\n");
+	if (!fd_req) {
+		pr_err("Unable to allocate struct fd_request\n");
 		return NULL;
 	}
 
-	fd_req->fd_dev = SE_DEV(cmd)->dev_ptr;
-
 	return &fd_req->fd_task;
 }
 
 static int fd_do_readv(struct se_task *task)
 {
 	struct fd_request *req = FILE_REQ(task);
-	struct file *fd = req->fd_dev->fd_file;
+	struct fd_dev *dev = req->fd_task.se_dev->dev_ptr;
+	struct file *fd = dev->fd_file;
 	struct scatterlist *sg = task->task_sg;
 	struct iovec *iov;
 	mm_segment_t old_fs;
-	loff_t pos = (task->task_lba * DEV_ATTRIB(task->se_dev)->block_size);
+	loff_t pos = (task->task_lba *
+		      task->se_dev->se_sub_dev->se_dev_attrib.block_size);
 	int ret = 0, i;
 
-	iov = kzalloc(sizeof(struct iovec) * task->task_sg_num, GFP_KERNEL);
-	if (!(iov)) {
-		printk(KERN_ERR "Unable to allocate fd_do_readv iov[]\n");
-		return -1;
+	iov = kzalloc(sizeof(struct iovec) * task->task_sg_nents, GFP_KERNEL);
+	if (!iov) {
+		pr_err("Unable to allocate fd_do_readv iov[]\n");
+		return -ENOMEM;
 	}
 
-	for (i = 0; i < task->task_sg_num; i++) {
+	for (i = 0; i < task->task_sg_nents; i++) {
 		iov[i].iov_len = sg[i].length;
 		iov[i].iov_base = sg_virt(&sg[i]);
 	}
 
 	old_fs = get_fs();
 	set_fs(get_ds());
-	ret = vfs_readv(fd, &iov[0], task->task_sg_num, &pos);
+	ret = vfs_readv(fd, &iov[0], task->task_sg_nents, &pos);
 	set_fs(old_fs);
 
 	kfree(iov);
@@ -321,16 +306,16 @@ static int fd_do_readv(struct se_task *task)
 	 */
 	if (S_ISBLK(fd->f_dentry->d_inode->i_mode)) {
 		if (ret < 0 || ret != task->task_size) {
-			printk(KERN_ERR "vfs_readv() returned %d,"
+			pr_err("vfs_readv() returned %d,"
 				" expecting %d for S_ISBLK\n", ret,
 				(int)task->task_size);
-			return -1;
+			return (ret < 0 ? ret : -EINVAL);
 		}
 	} else {
 		if (ret < 0) {
-			printk(KERN_ERR "vfs_readv() returned %d for non"
+			pr_err("vfs_readv() returned %d for non"
 				" S_ISBLK\n", ret);
-			return -1;
+			return ret;
 		}
 	}
 
@@ -340,34 +325,36 @@ static int fd_do_readv(struct se_task *task)
 static int fd_do_writev(struct se_task *task)
 {
 	struct fd_request *req = FILE_REQ(task);
-	struct file *fd = req->fd_dev->fd_file;
+	struct fd_dev *dev = req->fd_task.se_dev->dev_ptr;
+	struct file *fd = dev->fd_file;
 	struct scatterlist *sg = task->task_sg;
 	struct iovec *iov;
 	mm_segment_t old_fs;
-	loff_t pos = (task->task_lba * DEV_ATTRIB(task->se_dev)->block_size);
+	loff_t pos = (task->task_lba *
+		      task->se_dev->se_sub_dev->se_dev_attrib.block_size);
 	int ret, i = 0;
 
-	iov = kzalloc(sizeof(struct iovec) * task->task_sg_num, GFP_KERNEL);
-	if (!(iov)) {
-		printk(KERN_ERR "Unable to allocate fd_do_writev iov[]\n");
-		return -1;
+	iov = kzalloc(sizeof(struct iovec) * task->task_sg_nents, GFP_KERNEL);
+	if (!iov) {
+		pr_err("Unable to allocate fd_do_writev iov[]\n");
+		return -ENOMEM;
 	}
 
-	for (i = 0; i < task->task_sg_num; i++) {
+	for (i = 0; i < task->task_sg_nents; i++) {
 		iov[i].iov_len = sg[i].length;
 		iov[i].iov_base = sg_virt(&sg[i]);
 	}
 
 	old_fs = get_fs();
 	set_fs(get_ds());
-	ret = vfs_writev(fd, &iov[0], task->task_sg_num, &pos);
+	ret = vfs_writev(fd, &iov[0], task->task_sg_nents, &pos);
 	set_fs(old_fs);
 
 	kfree(iov);
 
 	if (ret < 0 || ret != task->task_size) {
-		printk(KERN_ERR "vfs_writev() returned %d\n", ret);
-		return -1;
+		pr_err("vfs_writev() returned %d\n", ret);
+		return (ret < 0 ? ret : -EINVAL);
 	}
 
 	return 1;
@@ -375,10 +362,10 @@ static int fd_do_writev(struct se_task *task)
 
 static void fd_emulate_sync_cache(struct se_task *task)
 {
-	struct se_cmd *cmd = TASK_CMD(task);
+	struct se_cmd *cmd = task->task_se_cmd;
 	struct se_device *dev = cmd->se_dev;
 	struct fd_dev *fd_dev = dev->dev_ptr;
-	int immed = (cmd->t_task->t_task_cdb[1] & 0x2);
+	int immed = (cmd->t_task_cdb[1] & 0x2);
 	loff_t start, end;
 	int ret;
 
@@ -392,11 +379,11 @@ static void fd_emulate_sync_cache(struct se_task *task)
 	/*
 	 * Determine if we will be flushing the entire device.
 	 */
-	if (cmd->t_task->t_task_lba == 0 && cmd->data_length == 0) {
+	if (cmd->t_task_lba == 0 && cmd->data_length == 0) {
 		start = 0;
 		end = LLONG_MAX;
 	} else {
-		start = cmd->t_task->t_task_lba * DEV_ATTRIB(dev)->block_size;
+		start = cmd->t_task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
 		if (cmd->data_length)
 			end = start + cmd->data_length;
 		else
@@ -405,7 +392,7 @@ static void fd_emulate_sync_cache(struct se_task *task)
 
 	ret = vfs_fsync_range(fd_dev->fd_file, start, end, 1);
 	if (ret != 0)
-		printk(KERN_ERR "FILEIO: vfs_fsync_range() failed: %d\n", ret);
+		pr_err("FILEIO: vfs_fsync_range() failed: %d\n", ret);
 
 	if (!immed)
 		transport_complete_sync_cache(cmd, ret == 0);
@@ -446,16 +433,16 @@ static void fd_emulate_write_fua(struct se_cmd *cmd, struct se_task *task)
 {
 	struct se_device *dev = cmd->se_dev;
 	struct fd_dev *fd_dev = dev->dev_ptr;
-	loff_t start = task->task_lba * DEV_ATTRIB(dev)->block_size;
+	loff_t start = task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size;
 	loff_t end = start + task->task_size;
 	int ret;
 
-	DEBUG_FD_CACHE("FILEIO: FUA WRITE LBA: %llu, bytes: %u\n",
+	pr_debug("FILEIO: FUA WRITE LBA: %llu, bytes: %u\n",
 			task->task_lba, task->task_size);
 
 	ret = vfs_fsync_range(fd_dev->fd_file, start, end, 1);
 	if (ret != 0)
-		printk(KERN_ERR "FILEIO: vfs_fsync_range() failed: %d\n", ret);
+		pr_err("FILEIO: vfs_fsync_range() failed: %d\n", ret);
 }
 
 static int fd_do_task(struct se_task *task)
@@ -474,9 +461,9 @@ static int fd_do_task(struct se_task *task)
 		ret = fd_do_writev(task);
 
 		if (ret > 0 &&
-		    DEV_ATTRIB(dev)->emulate_write_cache > 0 &&
-		    DEV_ATTRIB(dev)->emulate_fua_write > 0 &&
-		    T_TASK(cmd)->t_tasks_fua) {
+		    dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0 &&
+		    dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
+		    cmd->t_tasks_fua) {
 			/*
 			 * We might need to be a bit smarter here
 			 * and return some sense data to let the initiator
@@ -549,7 +536,7 @@ static ssize_t fd_set_configfs_dev_params(
 			snprintf(fd_dev->fd_dev_name, FD_MAX_DEV_NAME,
 					"%s", arg_p);
 			kfree(arg_p);
-			printk(KERN_INFO "FILEIO: Referencing Path: %s\n",
+			pr_debug("FILEIO: Referencing Path: %s\n",
 					fd_dev->fd_dev_name);
 			fd_dev->fbd_flags |= FBDF_HAS_PATH;
 			break;
@@ -562,23 +549,23 @@ static ssize_t fd_set_configfs_dev_params(
 			ret = strict_strtoull(arg_p, 0, &fd_dev->fd_dev_size);
 			kfree(arg_p);
 			if (ret < 0) {
-				printk(KERN_ERR "strict_strtoull() failed for"
+				pr_err("strict_strtoull() failed for"
 						" fd_dev_size=\n");
 				goto out;
 			}
-			printk(KERN_INFO "FILEIO: Referencing Size: %llu"
+			pr_debug("FILEIO: Referencing Size: %llu"
 					" bytes\n", fd_dev->fd_dev_size);
 			fd_dev->fbd_flags |= FBDF_HAS_SIZE;
 			break;
 		case Opt_fd_buffered_io:
 			match_int(args, &arg);
 			if (arg != 1) {
-				printk(KERN_ERR "bogus fd_buffered_io=%d value\n", arg);
+				pr_err("bogus fd_buffered_io=%d value\n", arg);
 				ret = -EINVAL;
 				goto out;
 			}
 
-			printk(KERN_INFO "FILEIO: Using buffered I/O"
+			pr_debug("FILEIO: Using buffered I/O"
 				" operations for struct fd_dev\n");
 
 			fd_dev->fbd_flags |= FDBD_USE_BUFFERED_IO;
@@ -598,8 +585,8 @@ static ssize_t fd_check_configfs_dev_params(struct se_hba *hba, struct se_subsys
 	struct fd_dev *fd_dev = (struct fd_dev *) se_dev->se_dev_su_ptr;
 
 	if (!(fd_dev->fbd_flags & FBDF_HAS_PATH)) {
-		printk(KERN_ERR "Missing fd_dev_name=\n");
-		return -1;
+		pr_err("Missing fd_dev_name=\n");
+		return -EINVAL;
 	}
 
 	return 0;
@@ -654,7 +641,7 @@ static sector_t fd_get_blocks(struct se_device *dev)
 {
 	struct fd_dev *fd_dev = dev->dev_ptr;
 	unsigned long long blocks_long = div_u64(fd_dev->fd_dev_size,
-			DEV_ATTRIB(dev)->block_size);
+			dev->se_sub_dev->se_dev_attrib.block_size);
 
 	return blocks_long;
 }

drivers/target/target_core_file.h

@@ -4,8 +4,6 @@
 #define FD_VERSION		"4.0"
 
 #define FD_MAX_DEV_NAME		256
-/* Maximum queuedepth for the FILEIO HBA */
-#define FD_HBA_QUEUE_DEPTH	256
 #define FD_DEVICE_QUEUE_DEPTH	32
 #define FD_MAX_DEVICE_QUEUE_DEPTH 128
 #define FD_BLOCKSIZE		512
@@ -18,8 +16,6 @@ struct fd_request {
 	struct se_task	fd_task;
 	/* SCSI CDB from iSCSI Command PDU */
 	unsigned char	fd_scsi_cdb[TCM_MAX_COMMAND_SIZE];
-	/* FILEIO device */
-	struct fd_dev	*fd_dev;
 } ____cacheline_aligned;
 
 #define FBDF_HAS_PATH		0x01

drivers/target/target_core_hba.c

@@ -1,7 +1,7 @@
 /*******************************************************************************
  * Filename:  target_core_hba.c
  *
- * This file copntains the iSCSI HBA Transport related functions.
+ * This file contains the TCM HBA Transport related functions.
  *
  * Copyright (c) 2003, 2004, 2005 PyX Technologies, Inc.
  * Copyright (c) 2005, 2006, 2007 SBE, Inc.
@@ -45,6 +45,11 @@
 static LIST_HEAD(subsystem_list);
 static DEFINE_MUTEX(subsystem_mutex);
 
+static u32 hba_id_counter;
+
+static DEFINE_SPINLOCK(hba_lock);
+static LIST_HEAD(hba_list);
+
 int transport_subsystem_register(struct se_subsystem_api *sub_api)
 {
 	struct se_subsystem_api *s;
@@ -53,8 +58,8 @@ int transport_subsystem_register(struct se_subsystem_api *sub_api)
 
 	mutex_lock(&subsystem_mutex);
 	list_for_each_entry(s, &subsystem_list, sub_api_list) {
-		if (!(strcmp(s->name, sub_api->name))) {
-			printk(KERN_ERR "%p is already registered with"
+		if (!strcmp(s->name, sub_api->name)) {
+			pr_err("%p is already registered with"
 				" duplicate name %s, unable to process"
 				" request\n", s, s->name);
 			mutex_unlock(&subsystem_mutex);
@@ -64,7 +69,7 @@ int transport_subsystem_register(struct se_subsystem_api *sub_api)
 	list_add_tail(&sub_api->sub_api_list, &subsystem_list);
 	mutex_unlock(&subsystem_mutex);
 
-	printk(KERN_INFO "TCM: Registered subsystem plugin: %s struct module:"
+	pr_debug("TCM: Registered subsystem plugin: %s struct module:"
 			" %p\n", sub_api->name, sub_api->owner);
 	return 0;
 }
@@ -104,21 +109,17 @@ core_alloc_hba(const char *plugin_name, u32 plugin_dep_id, u32 hba_flags)
 
 	hba = kzalloc(sizeof(*hba), GFP_KERNEL);
 	if (!hba) {
-		printk(KERN_ERR "Unable to allocate struct se_hba\n");
+		pr_err("Unable to allocate struct se_hba\n");
 		return ERR_PTR(-ENOMEM);
 	}
 
 	INIT_LIST_HEAD(&hba->hba_dev_list);
 	spin_lock_init(&hba->device_lock);
-	spin_lock_init(&hba->hba_queue_lock);
 	mutex_init(&hba->hba_access_mutex);
 
 	hba->hba_index = scsi_get_new_index(SCSI_INST_INDEX);
 	hba->hba_flags |= hba_flags;
 
-	atomic_set(&hba->max_queue_depth, 0);
-	atomic_set(&hba->left_queue_depth, 0);
-
 	hba->transport = core_get_backend(plugin_name);
 	if (!hba->transport) {
 		ret = -EINVAL;
@@ -129,12 +130,12 @@ core_alloc_hba(const char *plugin_name, u32 plugin_dep_id, u32 hba_flags)
 	if (ret < 0)
 		goto out_module_put;
 
-	spin_lock(&se_global->hba_lock);
-	hba->hba_id = se_global->g_hba_id_counter++;
-	list_add_tail(&hba->hba_list, &se_global->g_hba_list);
-	spin_unlock(&se_global->hba_lock);
+	spin_lock(&hba_lock);
+	hba->hba_id = hba_id_counter++;
+	list_add_tail(&hba->hba_node, &hba_list);
+	spin_unlock(&hba_lock);
 
-	printk(KERN_INFO "CORE_HBA[%d] - Attached HBA to Generic Target"
+	pr_debug("CORE_HBA[%d] - Attached HBA to Generic Target"
 			" Core\n", hba->hba_id);
 
 	return hba;
@@ -156,11 +157,11 @@ core_delete_hba(struct se_hba *hba)
 
 	hba->transport->detach_hba(hba);
 
-	spin_lock(&se_global->hba_lock);
-	list_del(&hba->hba_list);
-	spin_unlock(&se_global->hba_lock);
+	spin_lock(&hba_lock);
+	list_del(&hba->hba_node);
+	spin_unlock(&hba_lock);
 
-	printk(KERN_INFO "CORE_HBA[%d] - Detached HBA from Generic Target"
+	pr_debug("CORE_HBA[%d] - Detached HBA from Generic Target"
 			" Core\n", hba->hba_id);
 
 	if (hba->transport->owner)

drivers/target/target_core_iblock.c

@@ -47,12 +47,6 @@
 
 #include "target_core_iblock.h"
 
-#if 0
-#define DEBUG_IBLOCK(x...) printk(x)
-#else
-#define DEBUG_IBLOCK(x...)
-#endif
-
 static struct se_subsystem_api iblock_template;
 
 static void iblock_bio_done(struct bio *, int);
@@ -66,25 +60,22 @@ static int iblock_attach_hba(struct se_hba *hba, u32 host_id)
 	struct iblock_hba *ib_host;
 
 	ib_host = kzalloc(sizeof(struct iblock_hba), GFP_KERNEL);
-	if (!(ib_host)) {
-		printk(KERN_ERR "Unable to allocate memory for"
+	if (!ib_host) {
+		pr_err("Unable to allocate memory for"
 				" struct iblock_hba\n");
 		return -ENOMEM;
 	}
 
 	ib_host->iblock_host_id = host_id;
 
-	atomic_set(&hba->left_queue_depth, IBLOCK_HBA_QUEUE_DEPTH);
-	atomic_set(&hba->max_queue_depth, IBLOCK_HBA_QUEUE_DEPTH);
-	hba->hba_ptr = (void *) ib_host;
+	hba->hba_ptr = ib_host;
 
-	printk(KERN_INFO "CORE_HBA[%d] - TCM iBlock HBA Driver %s on"
+	pr_debug("CORE_HBA[%d] - TCM iBlock HBA Driver %s on"
 		" Generic Target Core Stack %s\n", hba->hba_id,
 		IBLOCK_VERSION, TARGET_CORE_MOD_VERSION);
 
-	printk(KERN_INFO "CORE_HBA[%d] - Attached iBlock HBA: %u to Generic"
-		" Target Core TCQ Depth: %d\n", hba->hba_id,
-		ib_host->iblock_host_id, atomic_read(&hba->max_queue_depth));
+	pr_debug("CORE_HBA[%d] - Attached iBlock HBA: %u to Generic\n",
+		hba->hba_id, ib_host->iblock_host_id);
 
 	return 0;
 }
@@ -93,7 +84,7 @@ static void iblock_detach_hba(struct se_hba *hba)
 {
 	struct iblock_hba *ib_host = hba->hba_ptr;
 
-	printk(KERN_INFO "CORE_HBA[%d] - Detached iBlock HBA: %u from Generic"
+	pr_debug("CORE_HBA[%d] - Detached iBlock HBA: %u from Generic"
 		" Target Core\n", hba->hba_id, ib_host->iblock_host_id);
 
 	kfree(ib_host);
@@ -106,13 +97,13 @@ static void *iblock_allocate_virtdevice(struct se_hba *hba, const char *name)
 	struct iblock_hba *ib_host = hba->hba_ptr;
 
 	ib_dev = kzalloc(sizeof(struct iblock_dev), GFP_KERNEL);
-	if (!(ib_dev)) {
-		printk(KERN_ERR "Unable to allocate struct iblock_dev\n");
+	if (!ib_dev) {
+		pr_err("Unable to allocate struct iblock_dev\n");
 		return NULL;
 	}
 	ib_dev->ibd_host = ib_host;
 
-	printk(KERN_INFO  "IBLOCK: Allocated ib_dev for %s\n", name);
+	pr_debug( "IBLOCK: Allocated ib_dev for %s\n", name);
 
 	return ib_dev;
 }
@@ -131,8 +122,8 @@ static struct se_device *iblock_create_virtdevice(
 	u32 dev_flags = 0;
 	int ret = -EINVAL;
 
-	if (!(ib_dev)) {
-		printk(KERN_ERR "Unable to locate struct iblock_dev parameter\n");
+	if (!ib_dev) {
+		pr_err("Unable to locate struct iblock_dev parameter\n");
 		return ERR_PTR(ret);
 	}
 	memset(&dev_limits, 0, sizeof(struct se_dev_limits));
@@ -140,16 +131,16 @@ static struct se_device *iblock_create_virtdevice(
 	 * These settings need to be made tunable..
 	 */
 	ib_dev->ibd_bio_set = bioset_create(32, 64);
-	if (!(ib_dev->ibd_bio_set)) {
-		printk(KERN_ERR "IBLOCK: Unable to create bioset()\n");
+	if (!ib_dev->ibd_bio_set) {
+		pr_err("IBLOCK: Unable to create bioset()\n");
 		return ERR_PTR(-ENOMEM);
 	}
-	printk(KERN_INFO "IBLOCK: Created bio_set()\n");
+	pr_debug("IBLOCK: Created bio_set()\n");
 	/*
 	 * iblock_check_configfs_dev_params() ensures that ib_dev->ibd_udev_path
 	 * must already have been set in order for echo 1 > $HBA/$DEV/enable to run.
 	 */
-	printk(KERN_INFO  "IBLOCK: Claiming struct block_device: %s\n",
+	pr_debug( "IBLOCK: Claiming struct block_device: %s\n",
 			ib_dev->ibd_udev_path);
 
 	bd = blkdev_get_by_path(ib_dev->ibd_udev_path,
@@ -167,42 +158,41 @@ static struct se_device *iblock_create_virtdevice(
 	limits->logical_block_size = bdev_logical_block_size(bd);
 	limits->max_hw_sectors = queue_max_hw_sectors(q);
 	limits->max_sectors = queue_max_sectors(q);
-	dev_limits.hw_queue_depth = IBLOCK_MAX_DEVICE_QUEUE_DEPTH;
-	dev_limits.queue_depth = IBLOCK_DEVICE_QUEUE_DEPTH;
+	dev_limits.hw_queue_depth = q->nr_requests;
+	dev_limits.queue_depth = q->nr_requests;
 
-	ib_dev->ibd_major = MAJOR(bd->bd_dev);
-	ib_dev->ibd_minor = MINOR(bd->bd_dev);
 	ib_dev->ibd_bd = bd;
 
 	dev = transport_add_device_to_core_hba(hba,
-			&iblock_template, se_dev, dev_flags, (void *)ib_dev,
+			&iblock_template, se_dev, dev_flags, ib_dev,
 			&dev_limits, "IBLOCK", IBLOCK_VERSION);
-	if (!(dev))
+	if (!dev)
 		goto failed;
 
-	ib_dev->ibd_depth = dev->queue_depth;
-
 	/*
 	 * Check if the underlying struct block_device request_queue supports
 	 * the QUEUE_FLAG_DISCARD bit for UNMAP/WRITE_SAME in SCSI + TRIM
 	 * in ATA and we need to set TPE=1
 	 */
 	if (blk_queue_discard(q)) {
-		DEV_ATTRIB(dev)->max_unmap_lba_count =
+		dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count =
 				q->limits.max_discard_sectors;
 		/*
 		 * Currently hardcoded to 1 in Linux/SCSI code..
 		 */
-		DEV_ATTRIB(dev)->max_unmap_block_desc_count = 1;
-		DEV_ATTRIB(dev)->unmap_granularity =
+		dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count = 1;
+		dev->se_sub_dev->se_dev_attrib.unmap_granularity =
 				q->limits.discard_granularity;
-		DEV_ATTRIB(dev)->unmap_granularity_alignment =
+		dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment =
 				q->limits.discard_alignment;
 
-		printk(KERN_INFO "IBLOCK: BLOCK Discard support available,"
+		pr_debug("IBLOCK: BLOCK Discard support available,"
 				" disabled by default\n");
 	}
 
+	if (blk_queue_nonrot(q))
+		dev->se_sub_dev->se_dev_attrib.is_nonrot = 1;
+
 	return dev;
 
 failed:
@@ -211,8 +201,6 @@ failed:
 		ib_dev->ibd_bio_set = NULL;
 	}
 	ib_dev->ibd_bd = NULL;
-	ib_dev->ibd_major = 0;
-	ib_dev->ibd_minor = 0;
 	return ERR_PTR(ret);
 }
 
@@ -233,17 +221,16 @@ static inline struct iblock_req *IBLOCK_REQ(struct se_task *task)
 }
 
 static struct se_task *
-iblock_alloc_task(struct se_cmd *cmd)
+iblock_alloc_task(unsigned char *cdb)
 {
 	struct iblock_req *ib_req;
 
 	ib_req = kzalloc(sizeof(struct iblock_req), GFP_KERNEL);
-	if (!(ib_req)) {
-		printk(KERN_ERR "Unable to allocate memory for struct iblock_req\n");
+	if (!ib_req) {
+		pr_err("Unable to allocate memory for struct iblock_req\n");
 		return NULL;
 	}
 
-	ib_req->ib_dev = SE_DEV(cmd)->dev_ptr;
 	atomic_set(&ib_req->ib_bio_cnt, 0);
 	return &ib_req->ib_task;
 }
@@ -257,12 +244,12 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 					bdev_logical_block_size(bd)) - 1);
 	u32 block_size = bdev_logical_block_size(bd);
 
-	if (block_size == DEV_ATTRIB(dev)->block_size)
+	if (block_size == dev->se_sub_dev->se_dev_attrib.block_size)
 		return blocks_long;
 
 	switch (block_size) {
 	case 4096:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 2048:
 			blocks_long <<= 1;
 			break;
@@ -276,7 +263,7 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 		}
 		break;
 	case 2048:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 4096:
 			blocks_long >>= 1;
 			break;
@@ -291,7 +278,7 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 		}
 		break;
 	case 1024:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 4096:
 			blocks_long >>= 2;
 			break;
@@ -306,7 +293,7 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
 		}
 		break;
 	case 512:
-		switch (DEV_ATTRIB(dev)->block_size) {
+		switch (dev->se_sub_dev->se_dev_attrib.block_size) {
 		case 4096:
 			blocks_long >>= 3;
 			break;
@@ -332,9 +319,9 @@ static unsigned long long iblock_emulate_read_cap_with_block_size(
  */
 static void iblock_emulate_sync_cache(struct se_task *task)
 {
-	struct se_cmd *cmd = TASK_CMD(task);
+	struct se_cmd *cmd = task->task_se_cmd;
 	struct iblock_dev *ib_dev = cmd->se_dev->dev_ptr;
-	int immed = (T_TASK(cmd)->t_task_cdb[1] & 0x2);
+	int immed = (cmd->t_task_cdb[1] & 0x2);
 	sector_t error_sector;
 	int ret;
 
@@ -351,7 +338,7 @@ static void iblock_emulate_sync_cache(struct se_task *task)
 	 */
 	ret = blkdev_issue_flush(ib_dev->ibd_bd, GFP_KERNEL, &error_sector);
 	if (ret != 0) {
-		printk(KERN_ERR "IBLOCK: block_issue_flush() failed: %d "
+		pr_err("IBLOCK: block_issue_flush() failed: %d "
 			" error_sector: %llu\n", ret,
 			(unsigned long long)error_sector);
 	}
@@ -401,9 +388,9 @@ static int iblock_do_task(struct se_task *task)
 		 * Force data to disk if we pretend to not have a volatile
 		 * write cache, or the initiator set the Force Unit Access bit.
 		 */
-		if (DEV_ATTRIB(dev)->emulate_write_cache == 0 ||
-		    (DEV_ATTRIB(dev)->emulate_fua_write > 0 &&
-		     T_TASK(task->task_se_cmd)->t_tasks_fua))
+		if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache == 0 ||
+		    (dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0 &&
+		     task->task_se_cmd->t_tasks_fua))
 			rw = WRITE_FUA;
 		else
 			rw = WRITE;
@@ -415,8 +402,9 @@ static int iblock_do_task(struct se_task *task)
 	while (bio) {
 		nbio = bio->bi_next;
 		bio->bi_next = NULL;
-		DEBUG_IBLOCK("Calling submit_bio() task: %p bio: %p"
-			" bio->bi_sector: %llu\n", task, bio, bio->bi_sector);
+		pr_debug("Calling submit_bio() task: %p bio: %p"
+			" bio->bi_sector: %llu\n", task, bio,
+			 (unsigned long long)bio->bi_sector);
 
 		submit_bio(rw, bio);
 		bio = nbio;
@@ -470,7 +458,7 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
 	struct iblock_dev *ib_dev = se_dev->se_dev_su_ptr;
 	char *orig, *ptr, *arg_p, *opts;
 	substring_t args[MAX_OPT_ARGS];
-	int ret = 0, arg, token;
+	int ret = 0, token;
 
 	opts = kstrdup(page, GFP_KERNEL);
 	if (!opts)
@@ -486,7 +474,7 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
 		switch (token) {
 		case Opt_udev_path:
 			if (ib_dev->ibd_bd) {
-				printk(KERN_ERR "Unable to set udev_path= while"
+				pr_err("Unable to set udev_path= while"
 					" ib_dev->ibd_bd exists\n");
 				ret = -EEXIST;
 				goto out;
@@ -499,15 +487,11 @@ static ssize_t iblock_set_configfs_dev_params(struct se_hba *hba,
 			snprintf(ib_dev->ibd_udev_path, SE_UDEV_PATH_LEN,
 					"%s", arg_p);
 			kfree(arg_p);
-			printk(KERN_INFO "IBLOCK: Referencing UDEV path: %s\n",
+			pr_debug("IBLOCK: Referencing UDEV path: %s\n",
 					ib_dev->ibd_udev_path);
 			ib_dev->ibd_flags |= IBDF_HAS_UDEV_PATH;
 			break;
 		case Opt_force:
-			match_int(args, &arg);
-			ib_dev->ibd_force = arg;
-			printk(KERN_INFO "IBLOCK: Set force=%d\n",
-				ib_dev->ibd_force);
 			break;
 		default:
 			break;
@@ -526,8 +510,8 @@ static ssize_t iblock_check_configfs_dev_params(
 	struct iblock_dev *ibd = se_dev->se_dev_su_ptr;
 
 	if (!(ibd->ibd_flags & IBDF_HAS_UDEV_PATH)) {
-		printk(KERN_ERR "Missing udev_path= parameters for IBLOCK\n");
-		return -1;
+		pr_err("Missing udev_path= parameters for IBLOCK\n");
+		return -EINVAL;
 	}
 
 	return 0;
@@ -555,12 +539,11 @@ static ssize_t iblock_show_configfs_dev_params(
 	bl += sprintf(b + bl, "        ");
 	if (bd) {
 		bl += sprintf(b + bl, "Major: %d Minor: %d  %s\n",
-			ibd->ibd_major, ibd->ibd_minor, (!bd->bd_contains) ?
+			MAJOR(bd->bd_dev), MINOR(bd->bd_dev), (!bd->bd_contains) ?
 			"" : (bd->bd_holder == (struct iblock_dev *)ibd) ?
 			"CLAIMED: IBLOCK" : "CLAIMED: OS");
 	} else {
-		bl += sprintf(b + bl, "Major: %d Minor: %d\n",
-			ibd->ibd_major, ibd->ibd_minor);
+		bl += sprintf(b + bl, "Major: 0 Minor: 0\n");
 	}
 
 	return bl;
@@ -585,103 +568,103 @@ static struct bio *iblock_get_bio(
 	struct bio *bio;
 
 	bio = bio_alloc_bioset(GFP_NOIO, sg_num, ib_dev->ibd_bio_set);
-	if (!(bio)) {
-		printk(KERN_ERR "Unable to allocate memory for bio\n");
+	if (!bio) {
+		pr_err("Unable to allocate memory for bio\n");
 		*ret = PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES;
 		return NULL;
 	}
 
-	DEBUG_IBLOCK("Allocated bio: %p task_sg_num: %u using ibd_bio_set:"
-		" %p\n", bio, task->task_sg_num, ib_dev->ibd_bio_set);
-	DEBUG_IBLOCK("Allocated bio: %p task_size: %u\n", bio, task->task_size);
+	pr_debug("Allocated bio: %p task_sg_nents: %u using ibd_bio_set:"
+		" %p\n", bio, task->task_sg_nents, ib_dev->ibd_bio_set);
+	pr_debug("Allocated bio: %p task_size: %u\n", bio, task->task_size);
 
 	bio->bi_bdev = ib_dev->ibd_bd;
-	bio->bi_private = (void *) task;
+	bio->bi_private = task;
 	bio->bi_destructor = iblock_bio_destructor;
 	bio->bi_end_io = &iblock_bio_done;
 	bio->bi_sector = lba;
 	atomic_inc(&ib_req->ib_bio_cnt);
 
-	DEBUG_IBLOCK("Set bio->bi_sector: %llu\n", bio->bi_sector);
-	DEBUG_IBLOCK("Set ib_req->ib_bio_cnt: %d\n",
+	pr_debug("Set bio->bi_sector: %llu\n", (unsigned long long)bio->bi_sector);
+	pr_debug("Set ib_req->ib_bio_cnt: %d\n",
 			atomic_read(&ib_req->ib_bio_cnt));
 	return bio;
 }
 
-static int iblock_map_task_SG(struct se_task *task)
+static int iblock_map_data_SG(struct se_task *task)
 {
 	struct se_cmd *cmd = task->task_se_cmd;
-	struct se_device *dev = SE_DEV(cmd);
+	struct se_device *dev = cmd->se_dev;
 	struct iblock_dev *ib_dev = task->se_dev->dev_ptr;
 	struct iblock_req *ib_req = IBLOCK_REQ(task);
 	struct bio *bio = NULL, *hbio = NULL, *tbio = NULL;
 	struct scatterlist *sg;
 	int ret = 0;
-	u32 i, sg_num = task->task_sg_num;
+	u32 i, sg_num = task->task_sg_nents;
 	sector_t block_lba;
 	/*
 	 * Do starting conversion up from non 512-byte blocksize with
 	 * struct se_task SCSI blocksize into Linux/Block 512 units for BIO.
 	 */
-	if (DEV_ATTRIB(dev)->block_size == 4096)
+	if (dev->se_sub_dev->se_dev_attrib.block_size == 4096)
 		block_lba = (task->task_lba << 3);
-	else if (DEV_ATTRIB(dev)->block_size == 2048)
+	else if (dev->se_sub_dev->se_dev_attrib.block_size == 2048)
 		block_lba = (task->task_lba << 2);
-	else if (DEV_ATTRIB(dev)->block_size == 1024)
+	else if (dev->se_sub_dev->se_dev_attrib.block_size == 1024)
 		block_lba = (task->task_lba << 1);
-	else if (DEV_ATTRIB(dev)->block_size == 512)
+	else if (dev->se_sub_dev->se_dev_attrib.block_size == 512)
 		block_lba = task->task_lba;
 	else {
-		printk(KERN_ERR "Unsupported SCSI -> BLOCK LBA conversion:"
-				" %u\n", DEV_ATTRIB(dev)->block_size);
+		pr_err("Unsupported SCSI -> BLOCK LBA conversion:"
+				" %u\n", dev->se_sub_dev->se_dev_attrib.block_size);
 		return PYX_TRANSPORT_LU_COMM_FAILURE;
 	}
 
 	bio = iblock_get_bio(task, ib_req, ib_dev, &ret, block_lba, sg_num);
-	if (!(bio))
+	if (!bio)
 		return ret;
 
 	ib_req->ib_bio = bio;
 	hbio = tbio = bio;
 	/*
 	 * Use fs/bio.c:bio_add_pages() to setup the bio_vec maplist
-	 * from TCM struct se_mem -> task->task_sg -> struct scatterlist memory.
+	 * from task->task_sg -> struct scatterlist memory.
 	 */
-	for_each_sg(task->task_sg, sg, task->task_sg_num, i) {
-		DEBUG_IBLOCK("task: %p bio: %p Calling bio_add_page(): page:"
+	for_each_sg(task->task_sg, sg, task->task_sg_nents, i) {
+		pr_debug("task: %p bio: %p Calling bio_add_page(): page:"
 			" %p len: %u offset: %u\n", task, bio, sg_page(sg),
 				sg->length, sg->offset);
 again:
 		ret = bio_add_page(bio, sg_page(sg), sg->length, sg->offset);
 		if (ret != sg->length) {
 
-			DEBUG_IBLOCK("*** Set bio->bi_sector: %llu\n",
-					bio->bi_sector);
-			DEBUG_IBLOCK("** task->task_size: %u\n",
+			pr_debug("*** Set bio->bi_sector: %llu\n",
+				 (unsigned long long)bio->bi_sector);
+			pr_debug("** task->task_size: %u\n",
 					task->task_size);
-			DEBUG_IBLOCK("*** bio->bi_max_vecs: %u\n",
+			pr_debug("*** bio->bi_max_vecs: %u\n",
 					bio->bi_max_vecs);
-			DEBUG_IBLOCK("*** bio->bi_vcnt: %u\n",
+			pr_debug("*** bio->bi_vcnt: %u\n",
 					bio->bi_vcnt);
 
 			bio = iblock_get_bio(task, ib_req, ib_dev, &ret,
 						block_lba, sg_num);
-			if (!(bio))
+			if (!bio)
 				goto fail;
 
 			tbio = tbio->bi_next = bio;
-			DEBUG_IBLOCK("-----------------> Added +1 bio: %p to"
+			pr_debug("-----------------> Added +1 bio: %p to"
 				" list, Going to again\n", bio);
 			goto again;
 		}
 		/* Always in 512 byte units for Linux/Block */
 		block_lba += sg->length >> IBLOCK_LBA_SHIFT;
 		sg_num--;
-		DEBUG_IBLOCK("task: %p bio-add_page() passed!, decremented"
+		pr_debug("task: %p bio-add_page() passed!, decremented"
 			" sg_num to %u\n", task, sg_num);
-		DEBUG_IBLOCK("task: %p bio_add_page() passed!, increased lba"
-				" to %llu\n", task, block_lba);
-		DEBUG_IBLOCK("task: %p bio_add_page() passed!, bio->bi_vcnt:"
+		pr_debug("task: %p bio_add_page() passed!, increased lba"
+			 " to %llu\n", task, (unsigned long long)block_lba);
+		pr_debug("task: %p bio_add_page() passed!, bio->bi_vcnt:"
 				" %u\n", task, bio->bi_vcnt);
 	}
 
@@ -727,11 +710,11 @@ static void iblock_bio_done(struct bio *bio, int err)
 	/*
 	 * Set -EIO if !BIO_UPTODATE and the passed is still err=0
 	 */
-	if (!(test_bit(BIO_UPTODATE, &bio->bi_flags)) && !(err))
+	if (!test_bit(BIO_UPTODATE, &bio->bi_flags) && !err)
 		err = -EIO;
 
 	if (err != 0) {
-		printk(KERN_ERR "test_bit(BIO_UPTODATE) failed for bio: %p,"
+		pr_err("test_bit(BIO_UPTODATE) failed for bio: %p,"
 			" err: %d\n", bio, err);
 		/*
 		 * Bump the ib_bio_err_cnt and release bio.
@@ -742,15 +725,15 @@ static void iblock_bio_done(struct bio *bio, int err)
 		/*
 		 * Wait to complete the task until the last bio as completed.
 		 */
-		if (!(atomic_dec_and_test(&ibr->ib_bio_cnt)))
+		if (!atomic_dec_and_test(&ibr->ib_bio_cnt))
 			return;
 
 		ibr->ib_bio = NULL;
 		transport_complete_task(task, 0);
 		return;
 	}
-	DEBUG_IBLOCK("done[%p] bio: %p task_lba: %llu bio_lba: %llu err=%d\n",
-		task, bio, task->task_lba, bio->bi_sector, err);
+	pr_debug("done[%p] bio: %p task_lba: %llu bio_lba: %llu err=%d\n",
+		 task, bio, task->task_lba, (unsigned long long)bio->bi_sector, err);
 	/*
 	 * bio_put() will call iblock_bio_destructor() to release the bio back
 	 * to ibr->ib_bio_set.
@@ -759,7 +742,7 @@ static void iblock_bio_done(struct bio *bio, int err)
 	/*
 	 * Wait to complete the task until the last bio as completed.
 	 */
-	if (!(atomic_dec_and_test(&ibr->ib_bio_cnt)))
+	if (!atomic_dec_and_test(&ibr->ib_bio_cnt))
 		return;
 	/*
 	 * Return GOOD status for task if zero ib_bio_err_cnt exists.
@@ -772,7 +755,7 @@ static struct se_subsystem_api iblock_template = {
 	.name			= "iblock",
 	.owner			= THIS_MODULE,
 	.transport_type		= TRANSPORT_PLUGIN_VHBA_PDEV,
-	.map_task_SG		= iblock_map_task_SG,
+	.map_data_SG		= iblock_map_data_SG,
 	.attach_hba		= iblock_attach_hba,
 	.detach_hba		= iblock_detach_hba,
 	.allocate_virtdevice	= iblock_allocate_virtdevice,

drivers/target/target_core_iblock.h

@@ -3,9 +3,6 @@
 
 #define IBLOCK_VERSION		"4.0"
 
-#define IBLOCK_HBA_QUEUE_DEPTH	512
-#define IBLOCK_DEVICE_QUEUE_DEPTH	32
-#define IBLOCK_MAX_DEVICE_QUEUE_DEPTH	128
 #define IBLOCK_MAX_CDBS		16
 #define IBLOCK_LBA_SHIFT	9
 
@@ -15,18 +12,12 @@ struct iblock_req {
 	atomic_t ib_bio_cnt;
 	atomic_t ib_bio_err_cnt;
 	struct bio *ib_bio;
-	struct iblock_dev *ib_dev;
 } ____cacheline_aligned;
 
 #define IBDF_HAS_UDEV_PATH		0x01
-#define IBDF_HAS_FORCE			0x02
 
 struct iblock_dev {
 	unsigned char ibd_udev_path[SE_UDEV_PATH_LEN];
-	int	ibd_force;
-	int	ibd_major;
-	int	ibd_minor;
-	u32	ibd_depth;
 	u32	ibd_flags;
 	struct bio_set	*ibd_bio_set;
 	struct block_device *ibd_bd;

drivers/target/target_core_pr.h

@@ -49,7 +49,7 @@ extern int core_pr_dump_initiator_port(struct t10_pr_registration *,
 			char *, u32);
 extern int core_scsi2_emulate_crh(struct se_cmd *);
 extern int core_scsi3_alloc_aptpl_registration(
-			struct t10_reservation_template *, u64,
+			struct t10_reservation *, u64,
 			unsigned char *, unsigned char *, u32,
 			unsigned char *, u16, u32, int, int, u8);
 extern int core_scsi3_check_aptpl_registration(struct se_device *,

drivers/target/target_core_pscsi.c

@@ -55,24 +55,6 @@ static struct se_subsystem_api pscsi_template;
 
 static void pscsi_req_done(struct request *, int);
 
-/*	pscsi_get_sh():
- *
- *
- */
-static struct Scsi_Host *pscsi_get_sh(u32 host_no)
-{
-	struct Scsi_Host *sh = NULL;
-
-	sh = scsi_host_lookup(host_no);
-	if (IS_ERR(sh)) {
-		printk(KERN_ERR "Unable to locate SCSI HBA with Host ID:"
-				" %u\n", host_no);
-		return NULL;
-	}
-
-	return sh;
-}
-
 /*	pscsi_attach_hba():
  *
  * 	pscsi_get_sh() used scsi_host_lookup() to locate struct Scsi_Host.
@@ -80,28 +62,23 @@ static struct Scsi_Host *pscsi_get_sh(u32 host_no)
  */
 static int pscsi_attach_hba(struct se_hba *hba, u32 host_id)
 {
-	int hba_depth;
 	struct pscsi_hba_virt *phv;
 
 	phv = kzalloc(sizeof(struct pscsi_hba_virt), GFP_KERNEL);
-	if (!(phv)) {
-		printk(KERN_ERR "Unable to allocate struct pscsi_hba_virt\n");
-		return -1;
+	if (!phv) {
+		pr_err("Unable to allocate struct pscsi_hba_virt\n");
+		return -ENOMEM;
 	}
 	phv->phv_host_id = host_id;
 	phv->phv_mode = PHV_VIRUTAL_HOST_ID;
-	hba_depth = PSCSI_VIRTUAL_HBA_DEPTH;
-	atomic_set(&hba->left_queue_depth, hba_depth);
-	atomic_set(&hba->max_queue_depth, hba_depth);
 
-	hba->hba_ptr = (void *)phv;
+	hba->hba_ptr = phv;
 
-	printk(KERN_INFO "CORE_HBA[%d] - TCM SCSI HBA Driver %s on"
+	pr_debug("CORE_HBA[%d] - TCM SCSI HBA Driver %s on"
 		" Generic Target Core Stack %s\n", hba->hba_id,
 		PSCSI_VERSION, TARGET_CORE_MOD_VERSION);
-	printk(KERN_INFO "CORE_HBA[%d] - Attached SCSI HBA to Generic"
-		" Target Core with TCQ Depth: %d\n", hba->hba_id,
-		atomic_read(&hba->max_queue_depth));
+	pr_debug("CORE_HBA[%d] - Attached SCSI HBA to Generic\n",
+	       hba->hba_id);
 
 	return 0;
 }
@@ -114,12 +91,12 @@ static void pscsi_detach_hba(struct se_hba *hba)
 	if (scsi_host) {
 		scsi_host_put(scsi_host);
 
-		printk(KERN_INFO "CORE_HBA[%d] - Detached SCSI HBA: %s from"
+		pr_debug("CORE_HBA[%d] - Detached SCSI HBA: %s from"
 			" Generic Target Core\n", hba->hba_id,
 			(scsi_host->hostt->name) ? (scsi_host->hostt->name) :
 			"Unknown");
 	} else
-		printk(KERN_INFO "CORE_HBA[%d] - Detached Virtual SCSI HBA"
+		pr_debug("CORE_HBA[%d] - Detached Virtual SCSI HBA"
 			" from Generic Target Core\n", hba->hba_id);
 
 	kfree(phv);
@@ -130,20 +107,17 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag)
 {
 	struct pscsi_hba_virt *phv = (struct pscsi_hba_virt *)hba->hba_ptr;
 	struct Scsi_Host *sh = phv->phv_lld_host;
-	int hba_depth = PSCSI_VIRTUAL_HBA_DEPTH;
 	/*
 	 * Release the struct Scsi_Host
 	 */
-	if (!(mode_flag)) {
-		if (!(sh))
+	if (!mode_flag) {
+		if (!sh)
 			return 0;
 
 		phv->phv_lld_host = NULL;
 		phv->phv_mode = PHV_VIRUTAL_HOST_ID;
-		atomic_set(&hba->left_queue_depth, hba_depth);
-		atomic_set(&hba->max_queue_depth, hba_depth);
 
-		printk(KERN_INFO "CORE_HBA[%d] - Disabled pSCSI HBA Passthrough"
+		pr_debug("CORE_HBA[%d] - Disabled pSCSI HBA Passthrough"
 			" %s\n", hba->hba_id, (sh->hostt->name) ?
 			(sh->hostt->name) : "Unknown");
 
@@ -154,27 +128,17 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag)
 	 * Otherwise, locate struct Scsi_Host from the original passed
 	 * pSCSI Host ID and enable for phba mode
 	 */
-	sh = pscsi_get_sh(phv->phv_host_id);
-	if (!(sh)) {
-		printk(KERN_ERR "pSCSI: Unable to locate SCSI Host for"
+	sh = scsi_host_lookup(phv->phv_host_id);
+	if (IS_ERR(sh)) {
+		pr_err("pSCSI: Unable to locate SCSI Host for"
 			" phv_host_id: %d\n", phv->phv_host_id);
-		return -1;
+		return PTR_ERR(sh);
 	}
-	/*
-	 * Usually the SCSI LLD will use the hostt->can_queue value to define
-	 * its HBA TCQ depth.  Some other drivers (like 2.6 megaraid) don't set
-	 * this at all and set sh->can_queue at runtime.
-	 */
-	hba_depth = (sh->hostt->can_queue > sh->can_queue) ?
-		sh->hostt->can_queue : sh->can_queue;
-
-	atomic_set(&hba->left_queue_depth, hba_depth);
-	atomic_set(&hba->max_queue_depth, hba_depth);
 
 	phv->phv_lld_host = sh;
 	phv->phv_mode = PHV_LLD_SCSI_HOST_NO;
 
-	printk(KERN_INFO "CORE_HBA[%d] - Enabled pSCSI HBA Passthrough %s\n",
+	pr_debug("CORE_HBA[%d] - Enabled pSCSI HBA Passthrough %s\n",
 		hba->hba_id, (sh->hostt->name) ? (sh->hostt->name) : "Unknown");
 
 	return 1;
@@ -236,7 +200,7 @@ pscsi_get_inquiry_vpd_serial(struct scsi_device *sdev, struct t10_wwn *wwn)
 
 	buf = kzalloc(INQUIRY_VPD_SERIAL_LEN, GFP_KERNEL);
 	if (!buf)
-		return -1;
+		return -ENOMEM;
 
 	memset(cdb, 0, MAX_COMMAND_SIZE);
 	cdb[0] = INQUIRY;
@@ -259,7 +223,7 @@ pscsi_get_inquiry_vpd_serial(struct scsi_device *sdev, struct t10_wwn *wwn)
 
 out_free:
 	kfree(buf);
-	return -1;
+	return -EPERM;
 }
 
 static void
@@ -293,15 +257,15 @@ pscsi_get_inquiry_vpd_device_ident(struct scsi_device *sdev,
 		page_83 = &buf[off];
 		ident_len = page_83[3];
 		if (!ident_len) {
-			printk(KERN_ERR "page_83[3]: identifier"
+			pr_err("page_83[3]: identifier"
 					" length zero!\n");
 			break;
 		}
-		printk(KERN_INFO "T10 VPD Identifer Length: %d\n", ident_len);
+		pr_debug("T10 VPD Identifer Length: %d\n", ident_len);
 
 		vpd = kzalloc(sizeof(struct t10_vpd), GFP_KERNEL);
 		if (!vpd) {
-			printk(KERN_ERR "Unable to allocate memory for"
+			pr_err("Unable to allocate memory for"
 					" struct t10_vpd\n");
 			goto out;
 		}
@@ -353,7 +317,7 @@ static struct se_device *pscsi_add_device_to_list(
 	if (!sd->queue_depth) {
 		sd->queue_depth = PSCSI_DEFAULT_QUEUEDEPTH;
 
-		printk(KERN_ERR "Set broken SCSI Device %d:%d:%d"
+		pr_err("Set broken SCSI Device %d:%d:%d"
 			" queue_depth to %d\n", sd->channel, sd->id,
 				sd->lun, sd->queue_depth);
 	}
@@ -364,10 +328,8 @@ static struct se_device *pscsi_add_device_to_list(
 	q = sd->request_queue;
 	limits = &dev_limits.limits;
 	limits->logical_block_size = sd->sector_size;
-	limits->max_hw_sectors = (sd->host->max_sectors > queue_max_hw_sectors(q)) ?
-				  queue_max_hw_sectors(q) : sd->host->max_sectors;
-	limits->max_sectors = (sd->host->max_sectors > queue_max_sectors(q)) ?
-				  queue_max_sectors(q) : sd->host->max_sectors;
+	limits->max_hw_sectors = min_t(int, sd->host->max_sectors, queue_max_hw_sectors(q));
+	limits->max_sectors = min_t(int, sd->host->max_sectors, queue_max_sectors(q));
 	dev_limits.hw_queue_depth = sd->queue_depth;
 	dev_limits.queue_depth = sd->queue_depth;
 	/*
@@ -391,9 +353,9 @@ static struct se_device *pscsi_add_device_to_list(
 	pdv->pdv_sd = sd;
 
 	dev = transport_add_device_to_core_hba(hba, &pscsi_template,
-				se_dev, dev_flags, (void *)pdv,
+				se_dev, dev_flags, pdv,
 				&dev_limits, NULL, NULL);
-	if (!(dev)) {
+	if (!dev) {
 		pdv->pdv_sd = NULL;
 		return NULL;
 	}
@@ -423,14 +385,14 @@ static void *pscsi_allocate_virtdevice(struct se_hba *hba, const char *name)
 	struct pscsi_dev_virt *pdv;
 
 	pdv = kzalloc(sizeof(struct pscsi_dev_virt), GFP_KERNEL);
-	if (!(pdv)) {
-		printk(KERN_ERR "Unable to allocate memory for struct pscsi_dev_virt\n");
+	if (!pdv) {
+		pr_err("Unable to allocate memory for struct pscsi_dev_virt\n");
 		return NULL;
 	}
 	pdv->pdv_se_hba = hba;
 
-	printk(KERN_INFO "PSCSI: Allocated pdv: %p for %s\n", pdv, name);
-	return (void *)pdv;
+	pr_debug("PSCSI: Allocated pdv: %p for %s\n", pdv, name);
+	return pdv;
 }
 
 /*
@@ -450,7 +412,7 @@ static struct se_device *pscsi_create_type_disk(
 	u32 dev_flags = 0;
 
 	if (scsi_device_get(sd)) {
-		printk(KERN_ERR "scsi_device_get() failed for %d:%d:%d:%d\n",
+		pr_err("scsi_device_get() failed for %d:%d:%d:%d\n",
 			sh->host_no, sd->channel, sd->id, sd->lun);
 		spin_unlock_irq(sh->host_lock);
 		return NULL;
@@ -463,19 +425,19 @@ static struct se_device *pscsi_create_type_disk(
 	bd = blkdev_get_by_path(se_dev->se_dev_udev_path,
 				FMODE_WRITE|FMODE_READ|FMODE_EXCL, pdv);
 	if (IS_ERR(bd)) {
-		printk(KERN_ERR "pSCSI: blkdev_get_by_path() failed\n");
+		pr_err("pSCSI: blkdev_get_by_path() failed\n");
 		scsi_device_put(sd);
 		return NULL;
 	}
 	pdv->pdv_bd = bd;
 
 	dev = pscsi_add_device_to_list(hba, se_dev, pdv, sd, dev_flags);
-	if (!(dev)) {
+	if (!dev) {
 		blkdev_put(pdv->pdv_bd, FMODE_WRITE|FMODE_READ|FMODE_EXCL);
 		scsi_device_put(sd);
 		return NULL;
 	}
-	printk(KERN_INFO "CORE_PSCSI[%d] - Added TYPE_DISK for %d:%d:%d:%d\n",
+	pr_debug("CORE_PSCSI[%d] - Added TYPE_DISK for %d:%d:%d:%d\n",
 		phv->phv_host_id, sh->host_no, sd->channel, sd->id, sd->lun);
 
 	return dev;
@@ -497,7 +459,7 @@ static struct se_device *pscsi_create_type_rom(
 	u32 dev_flags = 0;
 
 	if (scsi_device_get(sd)) {
-		printk(KERN_ERR "scsi_device_get() failed for %d:%d:%d:%d\n",
+		pr_err("scsi_device_get() failed for %d:%d:%d:%d\n",
 			sh->host_no, sd->channel, sd->id, sd->lun);
 		spin_unlock_irq(sh->host_lock);
 		return NULL;
@@ -505,11 +467,11 @@ static struct se_device *pscsi_create_type_rom(
 	spin_unlock_irq(sh->host_lock);
 
 	dev = pscsi_add_device_to_list(hba, se_dev, pdv, sd, dev_flags);
-	if (!(dev)) {
+	if (!dev) {
 		scsi_device_put(sd);
 		return NULL;
 	}
-	printk(KERN_INFO "CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%d\n",
+	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%d\n",
 		phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
 		sd->channel, sd->id, sd->lun);
 
@@ -533,10 +495,10 @@ static struct se_device *pscsi_create_type_other(
 
 	spin_unlock_irq(sh->host_lock);
 	dev = pscsi_add_device_to_list(hba, se_dev, pdv, sd, dev_flags);
-	if (!(dev))
+	if (!dev)
 		return NULL;
 
-	printk(KERN_INFO "CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%d\n",
+	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%d\n",
 		phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
 		sd->channel, sd->id, sd->lun);
 
@@ -555,8 +517,8 @@ static struct se_device *pscsi_create_virtdevice(
 	struct Scsi_Host *sh = phv->phv_lld_host;
 	int legacy_mode_enable = 0;
 
-	if (!(pdv)) {
-		printk(KERN_ERR "Unable to locate struct pscsi_dev_virt"
+	if (!pdv) {
+		pr_err("Unable to locate struct pscsi_dev_virt"
 				" parameter\n");
 		return ERR_PTR(-EINVAL);
 	}
@@ -564,9 +526,9 @@ static struct se_device *pscsi_create_virtdevice(
 	 * If not running in PHV_LLD_SCSI_HOST_NO mode, locate the
 	 * struct Scsi_Host we will need to bring the TCM/pSCSI object online
 	 */
-	if (!(sh)) {
+	if (!sh) {
 		if (phv->phv_mode == PHV_LLD_SCSI_HOST_NO) {
-			printk(KERN_ERR "pSCSI: Unable to locate struct"
+			pr_err("pSCSI: Unable to locate struct"
 				" Scsi_Host for PHV_LLD_SCSI_HOST_NO\n");
 			return ERR_PTR(-ENODEV);
 		}
@@ -575,7 +537,7 @@ static struct se_device *pscsi_create_virtdevice(
 		 * reference, we enforce that udev_path has been set
 		 */
 		if (!(se_dev->su_dev_flags & SDF_USING_UDEV_PATH)) {
-			printk(KERN_ERR "pSCSI: udev_path attribute has not"
+			pr_err("pSCSI: udev_path attribute has not"
 				" been set before ENABLE=1\n");
 			return ERR_PTR(-EINVAL);
 		}
@@ -586,8 +548,8 @@ static struct se_device *pscsi_create_virtdevice(
 		 */
 		if (!(pdv->pdv_flags & PDF_HAS_VIRT_HOST_ID)) {
 			spin_lock(&hba->device_lock);
-			if (!(list_empty(&hba->hba_dev_list))) {
-				printk(KERN_ERR "pSCSI: Unable to set hba_mode"
+			if (!list_empty(&hba->hba_dev_list)) {
+				pr_err("pSCSI: Unable to set hba_mode"
 					" with active devices\n");
 				spin_unlock(&hba->device_lock);
 				return ERR_PTR(-EEXIST);
@@ -601,16 +563,16 @@ static struct se_device *pscsi_create_virtdevice(
 			hba->hba_flags |= HBA_FLAGS_PSCSI_MODE;
 			sh = phv->phv_lld_host;
 		} else {
-			sh = pscsi_get_sh(pdv->pdv_host_id);
-			if (!(sh)) {
-				printk(KERN_ERR "pSCSI: Unable to locate"
+			sh = scsi_host_lookup(pdv->pdv_host_id);
+			if (IS_ERR(sh)) {
+				pr_err("pSCSI: Unable to locate"
 					" pdv_host_id: %d\n", pdv->pdv_host_id);
-				return ERR_PTR(-ENODEV);
+				return (struct se_device *) sh;
 			}
 		}
 	} else {
 		if (phv->phv_mode == PHV_VIRUTAL_HOST_ID) {
-			printk(KERN_ERR "pSCSI: PHV_VIRUTAL_HOST_ID set while"
+			pr_err("pSCSI: PHV_VIRUTAL_HOST_ID set while"
 				" struct Scsi_Host exists\n");
 			return ERR_PTR(-EEXIST);
 		}
@@ -639,7 +601,7 @@ static struct se_device *pscsi_create_virtdevice(
 			break;
 		}
 
-		if (!(dev)) {
+		if (!dev) {
 			if (phv->phv_mode == PHV_VIRUTAL_HOST_ID)
 				scsi_host_put(sh);
 			else if (legacy_mode_enable) {
@@ -653,7 +615,7 @@ static struct se_device *pscsi_create_virtdevice(
 	}
 	spin_unlock_irq(sh->host_lock);
 
-	printk(KERN_ERR "pSCSI: Unable to locate %d:%d:%d:%d\n", sh->host_no,
+	pr_err("pSCSI: Unable to locate %d:%d:%d:%d\n", sh->host_no,
 		pdv->pdv_channel_id,  pdv->pdv_target_id, pdv->pdv_lun_id);
 
 	if (phv->phv_mode == PHV_VIRUTAL_HOST_ID)
@@ -728,13 +690,12 @@ static int pscsi_transport_complete(struct se_task *task)
 	 */
 	if (((cdb[0] == MODE_SENSE) || (cdb[0] == MODE_SENSE_10)) &&
 	     (status_byte(result) << 1) == SAM_STAT_GOOD) {
-		if (!TASK_CMD(task)->se_deve)
+		if (!task->task_se_cmd->se_deve)
 			goto after_mode_sense;
 
-		if (TASK_CMD(task)->se_deve->lun_flags &
+		if (task->task_se_cmd->se_deve->lun_flags &
 				TRANSPORT_LUNFLAGS_READ_ONLY) {
-			unsigned char *buf = (unsigned char *)
-				T_TASK(task->task_se_cmd)->t_task_buf;
+			unsigned char *buf = transport_kmap_first_data_page(task->task_se_cmd);
 
 			if (cdb[0] == MODE_SENSE_10) {
 				if (!(buf[3] & 0x80))
@@ -743,6 +704,8 @@ static int pscsi_transport_complete(struct se_task *task)
 				if (!(buf[2] & 0x80))
 					buf[2] |= 0x80;
 			}
+
+			transport_kunmap_first_data_page(task->task_se_cmd);
 		}
 	}
 after_mode_sense:
@@ -766,8 +729,8 @@ after_mode_sense:
 		u32 blocksize;
 
 		buf = sg_virt(&sg[0]);
-		if (!(buf)) {
-			printk(KERN_ERR "Unable to get buf for scatterlist\n");
+		if (!buf) {
+			pr_err("Unable to get buf for scatterlist\n");
 			goto after_mode_select;
 		}
 
@@ -797,34 +760,20 @@ after_mode_select:
 }
 
 static struct se_task *
-pscsi_alloc_task(struct se_cmd *cmd)
+pscsi_alloc_task(unsigned char *cdb)
 {
 	struct pscsi_plugin_task *pt;
-	unsigned char *cdb = T_TASK(cmd)->t_task_cdb;
 
-	pt = kzalloc(sizeof(struct pscsi_plugin_task), GFP_KERNEL);
+	/*
+	 * Dynamically alloc cdb space, since it may be larger than
+	 * TCM_MAX_COMMAND_SIZE
+	 */
+	pt = kzalloc(sizeof(*pt) + scsi_command_size(cdb), GFP_KERNEL);
 	if (!pt) {
-		printk(KERN_ERR "Unable to allocate struct pscsi_plugin_task\n");
+		pr_err("Unable to allocate struct pscsi_plugin_task\n");
 		return NULL;
 	}
 
-	/*
-	 * If TCM Core is signaling a > TCM_MAX_COMMAND_SIZE allocation,
-	 * allocate the extended CDB buffer for per struct se_task context
-	 * pt->pscsi_cdb now.
-	 */
-	if (T_TASK(cmd)->t_task_cdb != T_TASK(cmd)->__t_task_cdb) {
-
-		pt->pscsi_cdb = kzalloc(scsi_command_size(cdb), GFP_KERNEL);
-		if (!(pt->pscsi_cdb)) {
-			printk(KERN_ERR "pSCSI: Unable to allocate extended"
-					" pt->pscsi_cdb\n");
-			kfree(pt);
-			return NULL;
-		}
-	} else
-		pt->pscsi_cdb = &pt->__pscsi_cdb[0];
-
 	return &pt->pscsi_task;
 }
 
@@ -849,7 +798,7 @@ static inline void pscsi_blk_init_request(
 	 * also set the end_io_data pointer.to struct se_task.
 	 */
 	req->end_io = pscsi_req_done;
-	req->end_io_data = (void *)task;
+	req->end_io_data = task;
 	/*
 	 * Load the referenced struct se_task's SCSI CDB into
 	 * include/linux/blkdev.h:struct request->cmd
@@ -859,7 +808,7 @@ static inline void pscsi_blk_init_request(
 	/*
 	 * Setup pointer for outgoing sense data.
 	 */
-	req->sense = (void *)&pt->pscsi_sense[0];
+	req->sense = &pt->pscsi_sense[0];
 	req->sense_len = 0;
 }
 
@@ -874,8 +823,8 @@ static int pscsi_blk_get_request(struct se_task *task)
 	pt->pscsi_req = blk_get_request(pdv->pdv_sd->request_queue,
 			(task->task_data_direction == DMA_TO_DEVICE),
 			GFP_KERNEL);
-	if (!(pt->pscsi_req) || IS_ERR(pt->pscsi_req)) {
-		printk(KERN_ERR "PSCSI: blk_get_request() failed: %ld\n",
+	if (!pt->pscsi_req || IS_ERR(pt->pscsi_req)) {
+		pr_err("PSCSI: blk_get_request() failed: %ld\n",
 				IS_ERR(pt->pscsi_req));
 		return PYX_TRANSPORT_LU_COMM_FAILURE;
 	}
@@ -920,14 +869,7 @@ static int pscsi_do_task(struct se_task *task)
 static void pscsi_free_task(struct se_task *task)
 {
 	struct pscsi_plugin_task *pt = PSCSI_TASK(task);
-	struct se_cmd *cmd = task->task_se_cmd;
 
-	/*
-	 * Release the extended CDB allocation from pscsi_alloc_task()
-	 * if one exists.
-	 */
-	if (T_TASK(cmd)->t_task_cdb != T_TASK(cmd)->__t_task_cdb)
-		kfree(pt->pscsi_cdb);
 	/*
 	 * We do not release the bio(s) here associated with this task, as
 	 * this is handled by bio_put() and pscsi_bi_endio().
@@ -973,7 +915,7 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_hba *hba,
 		switch (token) {
 		case Opt_scsi_host_id:
 			if (phv->phv_mode == PHV_LLD_SCSI_HOST_NO) {
-				printk(KERN_ERR "PSCSI[%d]: Unable to accept"
+				pr_err("PSCSI[%d]: Unable to accept"
 					" scsi_host_id while phv_mode =="
 					" PHV_LLD_SCSI_HOST_NO\n",
 					phv->phv_host_id);
@@ -982,14 +924,14 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_hba *hba,
 			}
 			match_int(args, &arg);
 			pdv->pdv_host_id = arg;
-			printk(KERN_INFO "PSCSI[%d]: Referencing SCSI Host ID:"
+			pr_debug("PSCSI[%d]: Referencing SCSI Host ID:"
 				" %d\n", phv->phv_host_id, pdv->pdv_host_id);
 			pdv->pdv_flags |= PDF_HAS_VIRT_HOST_ID;
 			break;
 		case Opt_scsi_channel_id:
 			match_int(args, &arg);
 			pdv->pdv_channel_id = arg;
-			printk(KERN_INFO "PSCSI[%d]: Referencing SCSI Channel"
+			pr_debug("PSCSI[%d]: Referencing SCSI Channel"
 				" ID: %d\n",  phv->phv_host_id,
 				pdv->pdv_channel_id);
 			pdv->pdv_flags |= PDF_HAS_CHANNEL_ID;
@@ -997,7 +939,7 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_hba *hba,
 		case Opt_scsi_target_id:
 			match_int(args, &arg);
 			pdv->pdv_target_id = arg;
-			printk(KERN_INFO "PSCSI[%d]: Referencing SCSI Target"
+			pr_debug("PSCSI[%d]: Referencing SCSI Target"
 				" ID: %d\n", phv->phv_host_id,
 				pdv->pdv_target_id);
 			pdv->pdv_flags |= PDF_HAS_TARGET_ID;
@@ -1005,7 +947,7 @@ static ssize_t pscsi_set_configfs_dev_params(struct se_hba *hba,
 		case Opt_scsi_lun_id:
 			match_int(args, &arg);
 			pdv->pdv_lun_id = arg;
-			printk(KERN_INFO "PSCSI[%d]: Referencing SCSI LUN ID:"
+			pr_debug("PSCSI[%d]: Referencing SCSI LUN ID:"
 				" %d\n", phv->phv_host_id, pdv->pdv_lun_id);
 			pdv->pdv_flags |= PDF_HAS_LUN_ID;
 			break;
@@ -1028,9 +970,9 @@ static ssize_t pscsi_check_configfs_dev_params(
 	if (!(pdv->pdv_flags & PDF_HAS_CHANNEL_ID) ||
 	    !(pdv->pdv_flags & PDF_HAS_TARGET_ID) ||
 	    !(pdv->pdv_flags & PDF_HAS_LUN_ID)) {
-		printk(KERN_ERR "Missing scsi_channel_id=, scsi_target_id= and"
+		pr_err("Missing scsi_channel_id=, scsi_target_id= and"
 			" scsi_lun_id= parameters\n");
-		return -1;
+		return -EINVAL;
 	}
 
 	return 0;
@@ -1090,7 +1032,7 @@ static void pscsi_bi_endio(struct bio *bio, int error)
 	bio_put(bio);
 }
 
-static inline struct bio *pscsi_get_bio(struct pscsi_dev_virt *pdv, int sg_num)
+static inline struct bio *pscsi_get_bio(int sg_num)
 {
 	struct bio *bio;
 	/*
@@ -1098,8 +1040,8 @@ static inline struct bio *pscsi_get_bio(struct pscsi_dev_virt *pdv, int sg_num)
 	 * in block/blk-core.c:blk_make_request()
 	 */
 	bio = bio_kmalloc(GFP_KERNEL, sg_num);
-	if (!(bio)) {
-		printk(KERN_ERR "PSCSI: bio_kmalloc() failed\n");
+	if (!bio) {
+		pr_err("PSCSI: bio_kmalloc() failed\n");
 		return NULL;
 	}
 	bio->bi_end_io = pscsi_bi_endio;
@@ -1107,13 +1049,7 @@ static inline struct bio *pscsi_get_bio(struct pscsi_dev_virt *pdv, int sg_num)
 	return bio;
 }
 
-#if 0
-#define DEBUG_PSCSI(x...) printk(x)
-#else
-#define DEBUG_PSCSI(x...)
-#endif
-
-static int __pscsi_map_task_SG(
+static int __pscsi_map_SG(
 	struct se_task *task,
 	struct scatterlist *task_sg,
 	u32 task_sg_num,
@@ -1134,7 +1070,7 @@ static int __pscsi_map_task_SG(
 		return 0;
 	/*
 	 * For SCF_SCSI_DATA_SG_IO_CDB, Use fs/bio.c:bio_add_page() to setup
-	 * the bio_vec maplist from TC< struct se_mem -> task->task_sg ->
+	 * the bio_vec maplist from task->task_sg ->
 	 * struct scatterlist memory.  The struct se_task->task_sg[] currently needs
 	 * to be attached to struct bios for submission to Linux/SCSI using
 	 * struct request to struct scsi_device->request_queue.
@@ -1143,34 +1079,34 @@ static int __pscsi_map_task_SG(
 	 * is ported to upstream SCSI passthrough functionality that accepts
 	 * struct scatterlist->page_link or struct page as a paraemeter.
 	 */
-	DEBUG_PSCSI("PSCSI: nr_pages: %d\n", nr_pages);
+	pr_debug("PSCSI: nr_pages: %d\n", nr_pages);
 
 	for_each_sg(task_sg, sg, task_sg_num, i) {
 		page = sg_page(sg);
 		off = sg->offset;
 		len = sg->length;
 
-		DEBUG_PSCSI("PSCSI: i: %d page: %p len: %d off: %d\n", i,
+		pr_debug("PSCSI: i: %d page: %p len: %d off: %d\n", i,
 			page, len, off);
 
 		while (len > 0 && data_len > 0) {
 			bytes = min_t(unsigned int, len, PAGE_SIZE - off);
 			bytes = min(bytes, data_len);
 
-			if (!(bio)) {
+			if (!bio) {
 				nr_vecs = min_t(int, BIO_MAX_PAGES, nr_pages);
 				nr_pages -= nr_vecs;
 				/*
 				 * Calls bio_kmalloc() and sets bio->bi_end_io()
 				 */
-				bio = pscsi_get_bio(pdv, nr_vecs);
-				if (!(bio))
+				bio = pscsi_get_bio(nr_vecs);
+				if (!bio)
 					goto fail;
 
 				if (rw)
 					bio->bi_rw |= REQ_WRITE;
 
-				DEBUG_PSCSI("PSCSI: Allocated bio: %p,"
+				pr_debug("PSCSI: Allocated bio: %p,"
 					" dir: %s nr_vecs: %d\n", bio,
 					(rw) ? "rw" : "r", nr_vecs);
 				/*
@@ -1185,7 +1121,7 @@ static int __pscsi_map_task_SG(
 					tbio = tbio->bi_next = bio;
 			}
 
-			DEBUG_PSCSI("PSCSI: Calling bio_add_pc_page() i: %d"
+			pr_debug("PSCSI: Calling bio_add_pc_page() i: %d"
 				" bio: %p page: %p len: %d off: %d\n", i, bio,
 				page, len, off);
 
@@ -1194,11 +1130,11 @@ static int __pscsi_map_task_SG(
 			if (rc != bytes)
 				goto fail;
 
-			DEBUG_PSCSI("PSCSI: bio->bi_vcnt: %d nr_vecs: %d\n",
+			pr_debug("PSCSI: bio->bi_vcnt: %d nr_vecs: %d\n",
 				bio->bi_vcnt, nr_vecs);
 
 			if (bio->bi_vcnt > nr_vecs) {
-				DEBUG_PSCSI("PSCSI: Reached bio->bi_vcnt max:"
+				pr_debug("PSCSI: Reached bio->bi_vcnt max:"
 					" %d i: %d bio: %p, allocating another"
 					" bio\n", bio->bi_vcnt, i, bio);
 				/*
@@ -1220,15 +1156,15 @@ static int __pscsi_map_task_SG(
 	 * Setup the primary pt->pscsi_req used for non BIDI and BIDI-COMMAND
 	 * primary SCSI WRITE poayload mapped for struct se_task->task_sg[]
 	 */
-	if (!(bidi_read)) {
+	if (!bidi_read) {
 		/*
 		 * Starting with v2.6.31, call blk_make_request() passing in *hbio to
 		 * allocate the pSCSI task a struct request.
 		 */
 		pt->pscsi_req = blk_make_request(pdv->pdv_sd->request_queue,
 					hbio, GFP_KERNEL);
-		if (!(pt->pscsi_req)) {
-			printk(KERN_ERR "pSCSI: blk_make_request() failed\n");
+		if (!pt->pscsi_req) {
+			pr_err("pSCSI: blk_make_request() failed\n");
 			goto fail;
 		}
 		/*
@@ -1237,7 +1173,7 @@ static int __pscsi_map_task_SG(
 		 */
 		pscsi_blk_init_request(task, pt, pt->pscsi_req, 0);
 
-		return task->task_sg_num;
+		return task->task_sg_nents;
 	}
 	/*
 	 * Setup the secondary pt->pscsi_req->next_rq used for the extra BIDI-COMMAND
@@ -1245,13 +1181,13 @@ static int __pscsi_map_task_SG(
 	 */
 	pt->pscsi_req->next_rq = blk_make_request(pdv->pdv_sd->request_queue,
 					hbio, GFP_KERNEL);
-	if (!(pt->pscsi_req->next_rq)) {
-		printk(KERN_ERR "pSCSI: blk_make_request() failed for BIDI\n");
+	if (!pt->pscsi_req->next_rq) {
+		pr_err("pSCSI: blk_make_request() failed for BIDI\n");
 		goto fail;
 	}
 	pscsi_blk_init_request(task, pt, pt->pscsi_req->next_rq, 1);
 
-	return task->task_sg_num;
+	return task->task_sg_nents;
 fail:
 	while (hbio) {
 		bio = hbio;
@@ -1262,7 +1198,10 @@ fail:
 	return ret;
 }
 
-static int pscsi_map_task_SG(struct se_task *task)
+/*
+ * pSCSI maps both ->map_control_SG() and ->map_data_SG() to a single call.
+ */
+static int pscsi_map_SG(struct se_task *task)
 {
 	int ret;
 
@@ -1270,14 +1209,14 @@ static int pscsi_map_task_SG(struct se_task *task)
 	 * Setup the main struct request for the task->task_sg[] payload
 	 */
 
-	ret = __pscsi_map_task_SG(task, task->task_sg, task->task_sg_num, 0);
+	ret = __pscsi_map_SG(task, task->task_sg, task->task_sg_nents, 0);
 	if (ret >= 0 && task->task_sg_bidi) {
 		/*
 		 * If present, set up the extra BIDI-COMMAND SCSI READ
 		 * struct request and payload.
 		 */
-		ret = __pscsi_map_task_SG(task, task->task_sg_bidi,
-					task->task_sg_num, 1);
+		ret = __pscsi_map_SG(task, task->task_sg_bidi,
+					task->task_sg_nents, 1);
 	}
 
 	if (ret < 0)
@@ -1285,33 +1224,6 @@ static int pscsi_map_task_SG(struct se_task *task)
 	return 0;
 }
 
-/*	pscsi_map_task_non_SG():
- *
- *
- */
-static int pscsi_map_task_non_SG(struct se_task *task)
-{
-	struct se_cmd *cmd = TASK_CMD(task);
-	struct pscsi_plugin_task *pt = PSCSI_TASK(task);
-	struct pscsi_dev_virt *pdv = task->se_dev->dev_ptr;
-	int ret = 0;
-
-	if (pscsi_blk_get_request(task) < 0)
-		return PYX_TRANSPORT_LU_COMM_FAILURE;
-
-	if (!task->task_size)
-		return 0;
-
-	ret = blk_rq_map_kern(pdv->pdv_sd->request_queue,
-			pt->pscsi_req, T_TASK(cmd)->t_task_buf,
-			task->task_size, GFP_KERNEL);
-	if (ret < 0) {
-		printk(KERN_ERR "PSCSI: blk_rq_map_kern() failed: %d\n", ret);
-		return PYX_TRANSPORT_LU_COMM_FAILURE;
-	}
-	return 0;
-}
-
 static int pscsi_CDB_none(struct se_task *task)
 {
 	return pscsi_blk_get_request(task);
@@ -1383,9 +1295,9 @@ static inline void pscsi_process_SAM_status(
 	struct pscsi_plugin_task *pt)
 {
 	task->task_scsi_status = status_byte(pt->pscsi_result);
-	if ((task->task_scsi_status)) {
+	if (task->task_scsi_status) {
 		task->task_scsi_status <<= 1;
-		printk(KERN_INFO "PSCSI Status Byte exception at task: %p CDB:"
+		pr_debug("PSCSI Status Byte exception at task: %p CDB:"
 			" 0x%02x Result: 0x%08x\n", task, pt->pscsi_cdb[0],
 			pt->pscsi_result);
 	}
@@ -1395,18 +1307,16 @@ static inline void pscsi_process_SAM_status(
 		transport_complete_task(task, (!task->task_scsi_status));
 		break;
 	default:
-		printk(KERN_INFO "PSCSI Host Byte exception at task: %p CDB:"
+		pr_debug("PSCSI Host Byte exception at task: %p CDB:"
 			" 0x%02x Result: 0x%08x\n", task, pt->pscsi_cdb[0],
 			pt->pscsi_result);
 		task->task_scsi_status = SAM_STAT_CHECK_CONDITION;
 		task->task_error_status = PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
-		TASK_CMD(task)->transport_error_status =
+		task->task_se_cmd->transport_error_status =
 					PYX_TRANSPORT_UNKNOWN_SAM_OPCODE;
 		transport_complete_task(task, 0);
 		break;
 	}
-
-	return;
 }
 
 static void pscsi_req_done(struct request *req, int uptodate)
@@ -1433,8 +1343,8 @@ static struct se_subsystem_api pscsi_template = {
 	.owner			= THIS_MODULE,
 	.transport_type		= TRANSPORT_PLUGIN_PHBA_PDEV,
 	.cdb_none		= pscsi_CDB_none,
-	.map_task_non_SG	= pscsi_map_task_non_SG,
-	.map_task_SG		= pscsi_map_task_SG,
+	.map_control_SG		= pscsi_map_SG,
+	.map_data_SG		= pscsi_map_SG,
 	.attach_hba		= pscsi_attach_hba,
 	.detach_hba		= pscsi_detach_hba,
 	.pmode_enable_hba	= pscsi_pmode_enable_hba,

drivers/target/target_core_pscsi.h

@@ -2,7 +2,6 @@
 #define TARGET_CORE_PSCSI_H
 
 #define PSCSI_VERSION		"v4.0"
-#define PSCSI_VIRTUAL_HBA_DEPTH	2048
 
 /* used in pscsi_find_alloc_len() */
 #ifndef INQUIRY_DATA_SIZE
@@ -24,13 +23,12 @@
 
 struct pscsi_plugin_task {
 	struct se_task pscsi_task;
-	unsigned char *pscsi_cdb;
-	unsigned char __pscsi_cdb[TCM_MAX_COMMAND_SIZE];
 	unsigned char pscsi_sense[SCSI_SENSE_BUFFERSIZE];
 	int	pscsi_direction;
 	int	pscsi_result;
 	u32	pscsi_resid;
 	struct request *pscsi_req;
+	unsigned char pscsi_cdb[0];
 } ____cacheline_aligned;
 
 #define PDF_HAS_CHANNEL_ID	0x01

drivers/target/target_core_rd.c

@@ -44,12 +44,8 @@
 
 #include "target_core_rd.h"
 
-static struct se_subsystem_api rd_dr_template;
 static struct se_subsystem_api rd_mcp_template;
 
-/* #define DEBUG_RAMDISK_MCP */
-/* #define DEBUG_RAMDISK_DR */
-
 /*	rd_attach_hba(): (Part of se_subsystem_api_t template)
  *
  *
@@ -59,24 +55,21 @@ static int rd_attach_hba(struct se_hba *hba, u32 host_id)
 	struct rd_host *rd_host;
 
 	rd_host = kzalloc(sizeof(struct rd_host), GFP_KERNEL);
-	if (!(rd_host)) {
-		printk(KERN_ERR "Unable to allocate memory for struct rd_host\n");
+	if (!rd_host) {
+		pr_err("Unable to allocate memory for struct rd_host\n");
 		return -ENOMEM;
 	}
 
 	rd_host->rd_host_id = host_id;
 
-	atomic_set(&hba->left_queue_depth, RD_HBA_QUEUE_DEPTH);
-	atomic_set(&hba->max_queue_depth, RD_HBA_QUEUE_DEPTH);
-	hba->hba_ptr = (void *) rd_host;
+	hba->hba_ptr = rd_host;
 
-	printk(KERN_INFO "CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on"
+	pr_debug("CORE_HBA[%d] - TCM Ramdisk HBA Driver %s on"
 		" Generic Target Core Stack %s\n", hba->hba_id,
 		RD_HBA_VERSION, TARGET_CORE_MOD_VERSION);
-	printk(KERN_INFO "CORE_HBA[%d] - Attached Ramdisk HBA: %u to Generic"
-		" Target Core TCQ Depth: %d MaxSectors: %u\n", hba->hba_id,
-		rd_host->rd_host_id, atomic_read(&hba->max_queue_depth),
-		RD_MAX_SECTORS);
+	pr_debug("CORE_HBA[%d] - Attached Ramdisk HBA: %u to Generic"
+		" MaxSectors: %u\n", hba->hba_id,
+		rd_host->rd_host_id, RD_MAX_SECTORS);
 
 	return 0;
 }
@@ -85,7 +78,7 @@ static void rd_detach_hba(struct se_hba *hba)
 {
 	struct rd_host *rd_host = hba->hba_ptr;
 
-	printk(KERN_INFO "CORE_HBA[%d] - Detached Ramdisk HBA: %u from"
+	pr_debug("CORE_HBA[%d] - Detached Ramdisk HBA: %u from"
 		" Generic Target Core\n", hba->hba_id, rd_host->rd_host_id);
 
 	kfree(rd_host);
@@ -114,7 +107,7 @@ static void rd_release_device_space(struct rd_dev *rd_dev)
 
 		for (j = 0; j < sg_per_table; j++) {
 			pg = sg_page(&sg[j]);
-			if ((pg)) {
+			if (pg) {
 				__free_page(pg);
 				page_count++;
 			}
@@ -123,7 +116,7 @@ static void rd_release_device_space(struct rd_dev *rd_dev)
 		kfree(sg);
 	}
 
-	printk(KERN_INFO "CORE_RD[%u] - Released device space for Ramdisk"
+	pr_debug("CORE_RD[%u] - Released device space for Ramdisk"
 		" Device ID: %u, pages %u in %u tables total bytes %lu\n",
 		rd_dev->rd_host->rd_host_id, rd_dev->rd_dev_id, page_count,
 		rd_dev->sg_table_count, (unsigned long)page_count * PAGE_SIZE);
@@ -148,7 +141,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 	struct scatterlist *sg;
 
 	if (rd_dev->rd_page_count <= 0) {
-		printk(KERN_ERR "Illegal page count: %u for Ramdisk device\n",
+		pr_err("Illegal page count: %u for Ramdisk device\n",
 			rd_dev->rd_page_count);
 		return -EINVAL;
 	}
@@ -157,8 +150,8 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 	sg_tables = (total_sg_needed / max_sg_per_table) + 1;
 
 	sg_table = kzalloc(sg_tables * sizeof(struct rd_dev_sg_table), GFP_KERNEL);
-	if (!(sg_table)) {
-		printk(KERN_ERR "Unable to allocate memory for Ramdisk"
+	if (!sg_table) {
+		pr_err("Unable to allocate memory for Ramdisk"
 			" scatterlist tables\n");
 		return -ENOMEM;
 	}
@@ -172,13 +165,13 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 
 		sg = kzalloc(sg_per_table * sizeof(struct scatterlist),
 				GFP_KERNEL);
-		if (!(sg)) {
-			printk(KERN_ERR "Unable to allocate scatterlist array"
+		if (!sg) {
+			pr_err("Unable to allocate scatterlist array"
 				" for struct rd_dev\n");
 			return -ENOMEM;
 		}
 
-		sg_init_table((struct scatterlist *)&sg[0], sg_per_table);
+		sg_init_table(sg, sg_per_table);
 
 		sg_table[i].sg_table = sg;
 		sg_table[i].rd_sg_count = sg_per_table;
@@ -188,8 +181,8 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 
 		for (j = 0; j < sg_per_table; j++) {
 			pg = alloc_pages(GFP_KERNEL, 0);
-			if (!(pg)) {
-				printk(KERN_ERR "Unable to allocate scatterlist"
+			if (!pg) {
+				pr_err("Unable to allocate scatterlist"
 					" pages for struct rd_dev_sg_table\n");
 				return -ENOMEM;
 			}
@@ -201,7 +194,7 @@ static int rd_build_device_space(struct rd_dev *rd_dev)
 		total_sg_needed -= sg_per_table;
 	}
 
-	printk(KERN_INFO "CORE_RD[%u] - Built Ramdisk Device ID: %u space of"
+	pr_debug("CORE_RD[%u] - Built Ramdisk Device ID: %u space of"
 		" %u pages in %u tables\n", rd_dev->rd_host->rd_host_id,
 		rd_dev->rd_dev_id, rd_dev->rd_page_count,
 		rd_dev->sg_table_count);
@@ -218,8 +211,8 @@ static void *rd_allocate_virtdevice(
 	struct rd_host *rd_host = hba->hba_ptr;
 
 	rd_dev = kzalloc(sizeof(struct rd_dev), GFP_KERNEL);
-	if (!(rd_dev)) {
-		printk(KERN_ERR "Unable to allocate memory for struct rd_dev\n");
+	if (!rd_dev) {
+		pr_err("Unable to allocate memory for struct rd_dev\n");
 		return NULL;
 	}
 
@@ -229,11 +222,6 @@ static void *rd_allocate_virtdevice(
 	return rd_dev;
 }
 
-static void *rd_DIRECT_allocate_virtdevice(struct se_hba *hba, const char *name)
-{
-	return rd_allocate_virtdevice(hba, name, 1);
-}
-
 static void *rd_MEMCPY_allocate_virtdevice(struct se_hba *hba, const char *name)
 {
 	return rd_allocate_virtdevice(hba, name, 0);
@@ -273,16 +261,15 @@ static struct se_device *rd_create_virtdevice(
 	dev_limits.queue_depth = RD_DEVICE_QUEUE_DEPTH;
 
 	dev = transport_add_device_to_core_hba(hba,
-			(rd_dev->rd_direct) ? &rd_dr_template :
-			&rd_mcp_template, se_dev, dev_flags, (void *)rd_dev,
+			&rd_mcp_template, se_dev, dev_flags, rd_dev,
 			&dev_limits, prod, rev);
-	if (!(dev))
+	if (!dev)
 		goto fail;
 
 	rd_dev->rd_dev_id = rd_host->rd_host_dev_id_count++;
 	rd_dev->rd_queue_depth = dev->queue_depth;
 
-	printk(KERN_INFO "CORE_RD[%u] - Added TCM %s Ramdisk Device ID: %u of"
+	pr_debug("CORE_RD[%u] - Added TCM %s Ramdisk Device ID: %u of"
 		" %u pages in %u tables, %lu total bytes\n",
 		rd_host->rd_host_id, (!rd_dev->rd_direct) ? "MEMCPY" :
 		"DIRECT", rd_dev->rd_dev_id, rd_dev->rd_page_count,
@@ -296,14 +283,6 @@ fail:
 	return ERR_PTR(ret);
 }
 
-static struct se_device *rd_DIRECT_create_virtdevice(
-	struct se_hba *hba,
-	struct se_subsystem_dev *se_dev,
-	void *p)
-{
-	return rd_create_virtdevice(hba, se_dev, p, 1);
-}
-
 static struct se_device *rd_MEMCPY_create_virtdevice(
 	struct se_hba *hba,
 	struct se_subsystem_dev *se_dev,
@@ -330,16 +309,15 @@ static inline struct rd_request *RD_REQ(struct se_task *task)
 }
 
 static struct se_task *
-rd_alloc_task(struct se_cmd *cmd)
+rd_alloc_task(unsigned char *cdb)
 {
 	struct rd_request *rd_req;
 
 	rd_req = kzalloc(sizeof(struct rd_request), GFP_KERNEL);
 	if (!rd_req) {
-		printk(KERN_ERR "Unable to allocate struct rd_request\n");
+		pr_err("Unable to allocate struct rd_request\n");
 		return NULL;
 	}
-	rd_req->rd_dev = SE_DEV(cmd)->dev_ptr;
 
 	return &rd_req->rd_task;
 }
@@ -360,7 +338,7 @@ static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page)
 			return sg_table;
 	}
 
-	printk(KERN_ERR "Unable to locate struct rd_dev_sg_table for page: %u\n",
+	pr_err("Unable to locate struct rd_dev_sg_table for page: %u\n",
 			page);
 
 	return NULL;
@@ -373,7 +351,7 @@ static struct rd_dev_sg_table *rd_get_sg_table(struct rd_dev *rd_dev, u32 page)
 static int rd_MEMCPY_read(struct rd_request *req)
 {
 	struct se_task *task = &req->rd_task;
-	struct rd_dev *dev = req->rd_dev;
+	struct rd_dev *dev = req->rd_task.se_dev->dev_ptr;
 	struct rd_dev_sg_table *table;
 	struct scatterlist *sg_d, *sg_s;
 	void *dst, *src;
@@ -382,32 +360,32 @@ static int rd_MEMCPY_read(struct rd_request *req)
 	u32 rd_offset = req->rd_offset;
 
 	table = rd_get_sg_table(dev, req->rd_page);
-	if (!(table))
-		return -1;
+	if (!table)
+		return -EINVAL;
 
 	table_sg_end = (table->page_end_offset - req->rd_page);
 	sg_d = task->task_sg;
 	sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
-#ifdef DEBUG_RAMDISK_MCP
-	printk(KERN_INFO "RD[%u]: Read LBA: %llu, Size: %u Page: %u, Offset:"
+
+	pr_debug("RD[%u]: Read LBA: %llu, Size: %u Page: %u, Offset:"
 		" %u\n", dev->rd_dev_id, task->task_lba, req->rd_size,
 		req->rd_page, req->rd_offset);
-#endif
+
 	src_offset = rd_offset;
 
 	while (req->rd_size) {
 		if ((sg_d[i].length - dst_offset) <
 		    (sg_s[j].length - src_offset)) {
 			length = (sg_d[i].length - dst_offset);
-#ifdef DEBUG_RAMDISK_MCP
-			printk(KERN_INFO "Step 1 - sg_d[%d]: %p length: %d"
+
+			pr_debug("Step 1 - sg_d[%d]: %p length: %d"
 				" offset: %u sg_s[%d].length: %u\n", i,
 				&sg_d[i], sg_d[i].length, sg_d[i].offset, j,
 				sg_s[j].length);
-			printk(KERN_INFO "Step 1 - length: %u dst_offset: %u"
+			pr_debug("Step 1 - length: %u dst_offset: %u"
 				" src_offset: %u\n", length, dst_offset,
 				src_offset);
-#endif
+
 			if (length > req->rd_size)
 				length = req->rd_size;
 
@@ -424,15 +402,15 @@ static int rd_MEMCPY_read(struct rd_request *req)
 			page_end = 0;
 		} else {
 			length = (sg_s[j].length - src_offset);
-#ifdef DEBUG_RAMDISK_MCP
-			printk(KERN_INFO "Step 2 - sg_d[%d]: %p length: %d"
+
+			pr_debug("Step 2 - sg_d[%d]: %p length: %d"
 				" offset: %u sg_s[%d].length: %u\n", i,
 				&sg_d[i], sg_d[i].length, sg_d[i].offset,
 				j, sg_s[j].length);
-			printk(KERN_INFO "Step 2 - length: %u dst_offset: %u"
+			pr_debug("Step 2 - length: %u dst_offset: %u"
 				" src_offset: %u\n", length, dst_offset,
 				src_offset);
-#endif
+
 			if (length > req->rd_size)
 				length = req->rd_size;
 
@@ -456,32 +434,29 @@ static int rd_MEMCPY_read(struct rd_request *req)
 
 		memcpy(dst, src, length);
 
-#ifdef DEBUG_RAMDISK_MCP
-		printk(KERN_INFO "page: %u, remaining size: %u, length: %u,"
+		pr_debug("page: %u, remaining size: %u, length: %u,"
 			" i: %u, j: %u\n", req->rd_page,
 			(req->rd_size - length), length, i, j);
-#endif
+
 		req->rd_size -= length;
-		if (!(req->rd_size))
+		if (!req->rd_size)
 			return 0;
 
 		if (!page_end)
 			continue;
 
 		if (++req->rd_page <= table->page_end_offset) {
-#ifdef DEBUG_RAMDISK_MCP
-			printk(KERN_INFO "page: %u in same page table\n",
+			pr_debug("page: %u in same page table\n",
 				req->rd_page);
-#endif
 			continue;
 		}
-#ifdef DEBUG_RAMDISK_MCP
-		printk(KERN_INFO "getting new page table for page: %u\n",
+
+		pr_debug("getting new page table for page: %u\n",
 				req->rd_page);
-#endif
+
 		table = rd_get_sg_table(dev, req->rd_page);
-		if (!(table))
-			return -1;
+		if (!table)
+			return -EINVAL;
 
 		sg_s = &table->sg_table[j = 0];
 	}
@@ -496,7 +471,7 @@ static int rd_MEMCPY_read(struct rd_request *req)
 static int rd_MEMCPY_write(struct rd_request *req)
 {
 	struct se_task *task = &req->rd_task;
-	struct rd_dev *dev = req->rd_dev;
+	struct rd_dev *dev = req->rd_task.se_dev->dev_ptr;
 	struct rd_dev_sg_table *table;
 	struct scatterlist *sg_d, *sg_s;
 	void *dst, *src;
@@ -505,32 +480,32 @@ static int rd_MEMCPY_write(struct rd_request *req)
 	u32 rd_offset = req->rd_offset;
 
 	table = rd_get_sg_table(dev, req->rd_page);
-	if (!(table))
-		return -1;
+	if (!table)
+		return -EINVAL;
 
 	table_sg_end = (table->page_end_offset - req->rd_page);
 	sg_d = &table->sg_table[req->rd_page - table->page_start_offset];
 	sg_s = task->task_sg;
-#ifdef DEBUG_RAMDISK_MCP
-	printk(KERN_INFO "RD[%d] Write LBA: %llu, Size: %u, Page: %u,"
+
+	pr_debug("RD[%d] Write LBA: %llu, Size: %u, Page: %u,"
 		" Offset: %u\n", dev->rd_dev_id, task->task_lba, req->rd_size,
 		req->rd_page, req->rd_offset);
-#endif
+
 	dst_offset = rd_offset;
 
 	while (req->rd_size) {
 		if ((sg_s[i].length - src_offset) <
 		    (sg_d[j].length - dst_offset)) {
 			length = (sg_s[i].length - src_offset);
-#ifdef DEBUG_RAMDISK_MCP
-			printk(KERN_INFO "Step 1 - sg_s[%d]: %p length: %d"
+
+			pr_debug("Step 1 - sg_s[%d]: %p length: %d"
 				" offset: %d sg_d[%d].length: %u\n", i,
 				&sg_s[i], sg_s[i].length, sg_s[i].offset,
 				j, sg_d[j].length);
-			printk(KERN_INFO "Step 1 - length: %u src_offset: %u"
+			pr_debug("Step 1 - length: %u src_offset: %u"
 				" dst_offset: %u\n", length, src_offset,
 				dst_offset);
-#endif
+
 			if (length > req->rd_size)
 				length = req->rd_size;
 
@@ -547,15 +522,15 @@ static int rd_MEMCPY_write(struct rd_request *req)
 			page_end = 0;
 		} else {
 			length = (sg_d[j].length - dst_offset);
-#ifdef DEBUG_RAMDISK_MCP
-			printk(KERN_INFO "Step 2 - sg_s[%d]: %p length: %d"
+
+			pr_debug("Step 2 - sg_s[%d]: %p length: %d"
 				" offset: %d sg_d[%d].length: %u\n", i,
 				&sg_s[i], sg_s[i].length, sg_s[i].offset,
 				j, sg_d[j].length);
-			printk(KERN_INFO "Step 2 - length: %u src_offset: %u"
+			pr_debug("Step 2 - length: %u src_offset: %u"
 				" dst_offset: %u\n", length, src_offset,
 				dst_offset);
-#endif
+
 			if (length > req->rd_size)
 				length = req->rd_size;
 
@@ -579,32 +554,29 @@ static int rd_MEMCPY_write(struct rd_request *req)
 
 		memcpy(dst, src, length);
 
-#ifdef DEBUG_RAMDISK_MCP
-		printk(KERN_INFO "page: %u, remaining size: %u, length: %u,"
+		pr_debug("page: %u, remaining size: %u, length: %u,"
 			" i: %u, j: %u\n", req->rd_page,
 			(req->rd_size - length), length, i, j);
-#endif
+
 		req->rd_size -= length;
-		if (!(req->rd_size))
+		if (!req->rd_size)
 			return 0;
 
 		if (!page_end)
 			continue;
 
 		if (++req->rd_page <= table->page_end_offset) {
-#ifdef DEBUG_RAMDISK_MCP
-			printk(KERN_INFO "page: %u in same page table\n",
+			pr_debug("page: %u in same page table\n",
 				req->rd_page);
-#endif
 			continue;
 		}
-#ifdef DEBUG_RAMDISK_MCP
-		printk(KERN_INFO "getting new page table for page: %u\n",
+
+		pr_debug("getting new page table for page: %u\n",
 				req->rd_page);
-#endif
+
 		table = rd_get_sg_table(dev, req->rd_page);
-		if (!(table))
-			return -1;
+		if (!table)
+			return -EINVAL;
 
 		sg_d = &table->sg_table[j = 0];
 	}
@@ -623,11 +595,11 @@ static int rd_MEMCPY_do_task(struct se_task *task)
 	unsigned long long lba;
 	int ret;
 
-	req->rd_page = (task->task_lba * DEV_ATTRIB(dev)->block_size) / PAGE_SIZE;
+	req->rd_page = (task->task_lba * dev->se_sub_dev->se_dev_attrib.block_size) / PAGE_SIZE;
 	lba = task->task_lba;
 	req->rd_offset = (do_div(lba,
-			  (PAGE_SIZE / DEV_ATTRIB(dev)->block_size))) *
-			   DEV_ATTRIB(dev)->block_size;
+			  (PAGE_SIZE / dev->se_sub_dev->se_dev_attrib.block_size))) *
+			   dev->se_sub_dev->se_dev_attrib.block_size;
 	req->rd_size = task->task_size;
 
 	if (task->task_data_direction == DMA_FROM_DEVICE)
@@ -644,274 +616,6 @@ static int rd_MEMCPY_do_task(struct se_task *task)
 	return PYX_TRANSPORT_SENT_TO_TRANSPORT;
 }
 
-/*	rd_DIRECT_with_offset():
- *
- *
- */
-static int rd_DIRECT_with_offset(
-	struct se_task *task,
-	struct list_head *se_mem_list,
-	u32 *se_mem_cnt,
-	u32 *task_offset)
-{
-	struct rd_request *req = RD_REQ(task);
-	struct rd_dev *dev = req->rd_dev;
-	struct rd_dev_sg_table *table;
-	struct se_mem *se_mem;
-	struct scatterlist *sg_s;
-	u32 j = 0, set_offset = 1;
-	u32 get_next_table = 0, offset_length, table_sg_end;
-
-	table = rd_get_sg_table(dev, req->rd_page);
-	if (!(table))
-		return -1;
-
-	table_sg_end = (table->page_end_offset - req->rd_page);
-	sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
-#ifdef DEBUG_RAMDISK_DR
-	printk(KERN_INFO "%s DIRECT LBA: %llu, Size: %u Page: %u, Offset: %u\n",
-		(task->task_data_direction == DMA_TO_DEVICE) ?
-			"Write" : "Read",
-		task->task_lba, req->rd_size, req->rd_page, req->rd_offset);
-#endif
-	while (req->rd_size) {
-		se_mem = kmem_cache_zalloc(se_mem_cache, GFP_KERNEL);
-		if (!(se_mem)) {
-			printk(KERN_ERR "Unable to allocate struct se_mem\n");
-			return -1;
-		}
-		INIT_LIST_HEAD(&se_mem->se_list);
-
-		if (set_offset) {
-			offset_length = sg_s[j].length - req->rd_offset;
-			if (offset_length > req->rd_size)
-				offset_length = req->rd_size;
-
-			se_mem->se_page = sg_page(&sg_s[j++]);
-			se_mem->se_off = req->rd_offset;
-			se_mem->se_len = offset_length;
-
-			set_offset = 0;
-			get_next_table = (j > table_sg_end);
-			goto check_eot;
-		}
-
-		offset_length = (req->rd_size < req->rd_offset) ?
-			req->rd_size : req->rd_offset;
-
-		se_mem->se_page = sg_page(&sg_s[j]);
-		se_mem->se_len = offset_length;
-
-		set_offset = 1;
-
-check_eot:
-#ifdef DEBUG_RAMDISK_DR
-		printk(KERN_INFO "page: %u, size: %u, offset_length: %u, j: %u"
-			" se_mem: %p, se_page: %p se_off: %u se_len: %u\n",
-			req->rd_page, req->rd_size, offset_length, j, se_mem,
-			se_mem->se_page, se_mem->se_off, se_mem->se_len);
-#endif
-		list_add_tail(&se_mem->se_list, se_mem_list);
-		(*se_mem_cnt)++;
-
-		req->rd_size -= offset_length;
-		if (!(req->rd_size))
-			goto out;
-
-		if (!set_offset && !get_next_table)
-			continue;
-
-		if (++req->rd_page <= table->page_end_offset) {
-#ifdef DEBUG_RAMDISK_DR
-			printk(KERN_INFO "page: %u in same page table\n",
-					req->rd_page);
-#endif
-			continue;
-		}
-#ifdef DEBUG_RAMDISK_DR
-		printk(KERN_INFO "getting new page table for page: %u\n",
-				req->rd_page);
-#endif
-		table = rd_get_sg_table(dev, req->rd_page);
-		if (!(table))
-			return -1;
-
-		sg_s = &table->sg_table[j = 0];
-	}
-
-out:
-	T_TASK(task->task_se_cmd)->t_tasks_se_num += *se_mem_cnt;
-#ifdef DEBUG_RAMDISK_DR
-	printk(KERN_INFO "RD_DR - Allocated %u struct se_mem segments for task\n",
-			*se_mem_cnt);
-#endif
-	return 0;
-}
-
-/*	rd_DIRECT_without_offset():
- *
- *
- */
-static int rd_DIRECT_without_offset(
-	struct se_task *task,
-	struct list_head *se_mem_list,
-	u32 *se_mem_cnt,
-	u32 *task_offset)
-{
-	struct rd_request *req = RD_REQ(task);
-	struct rd_dev *dev = req->rd_dev;
-	struct rd_dev_sg_table *table;
-	struct se_mem *se_mem;
-	struct scatterlist *sg_s;
-	u32 length, j = 0;
-
-	table = rd_get_sg_table(dev, req->rd_page);
-	if (!(table))
-		return -1;
-
-	sg_s = &table->sg_table[req->rd_page - table->page_start_offset];
-#ifdef DEBUG_RAMDISK_DR
-	printk(KERN_INFO "%s DIRECT LBA: %llu, Size: %u, Page: %u\n",
-		(task->task_data_direction == DMA_TO_DEVICE) ?
-			"Write" : "Read",
-		task->task_lba, req->rd_size, req->rd_page);
-#endif
-	while (req->rd_size) {
-		se_mem = kmem_cache_zalloc(se_mem_cache, GFP_KERNEL);
-		if (!(se_mem)) {
-			printk(KERN_ERR "Unable to allocate struct se_mem\n");
-			return -1;
-		}
-		INIT_LIST_HEAD(&se_mem->se_list);
-
-		length = (req->rd_size < sg_s[j].length) ?
-			req->rd_size : sg_s[j].length;
-
-		se_mem->se_page = sg_page(&sg_s[j++]);
-		se_mem->se_len = length;
-
-#ifdef DEBUG_RAMDISK_DR
-		printk(KERN_INFO "page: %u, size: %u, j: %u se_mem: %p,"
-			" se_page: %p se_off: %u se_len: %u\n", req->rd_page,
-			req->rd_size, j, se_mem, se_mem->se_page,
-			se_mem->se_off, se_mem->se_len);
-#endif
-		list_add_tail(&se_mem->se_list, se_mem_list);
-		(*se_mem_cnt)++;
-
-		req->rd_size -= length;
-		if (!(req->rd_size))
-			goto out;
-
-		if (++req->rd_page <= table->page_end_offset) {
-#ifdef DEBUG_RAMDISK_DR
-			printk("page: %u in same page table\n",
-				req->rd_page);
-#endif
-			continue;
-		}
-#ifdef DEBUG_RAMDISK_DR
-		printk(KERN_INFO "getting new page table for page: %u\n",
-				req->rd_page);
-#endif
-		table = rd_get_sg_table(dev, req->rd_page);
-		if (!(table))
-			return -1;
-
-		sg_s = &table->sg_table[j = 0];
-	}
-
-out:
-	T_TASK(task->task_se_cmd)->t_tasks_se_num += *se_mem_cnt;
-#ifdef DEBUG_RAMDISK_DR
-	printk(KERN_INFO "RD_DR - Allocated %u struct se_mem segments for task\n",
-			*se_mem_cnt);
-#endif
-	return 0;
-}
-
-/*	rd_DIRECT_do_se_mem_map():
- *
- *
- */
-static int rd_DIRECT_do_se_mem_map(
-	struct se_task *task,
-	struct list_head *se_mem_list,
-	void *in_mem,
-	struct se_mem *in_se_mem,
-	struct se_mem **out_se_mem,
-	u32 *se_mem_cnt,
-	u32 *task_offset_in)
-{
-	struct se_cmd *cmd = task->task_se_cmd;
-	struct rd_request *req = RD_REQ(task);
-	u32 task_offset = *task_offset_in;
-	unsigned long long lba;
-	int ret;
-
-	req->rd_page = ((task->task_lba * DEV_ATTRIB(task->se_dev)->block_size) /
-			PAGE_SIZE);
-	lba = task->task_lba;
-	req->rd_offset = (do_div(lba,
-			  (PAGE_SIZE / DEV_ATTRIB(task->se_dev)->block_size))) *
-			   DEV_ATTRIB(task->se_dev)->block_size;
-	req->rd_size = task->task_size;
-
-	if (req->rd_offset)
-		ret = rd_DIRECT_with_offset(task, se_mem_list, se_mem_cnt,
-				task_offset_in);
-	else
-		ret = rd_DIRECT_without_offset(task, se_mem_list, se_mem_cnt,
-				task_offset_in);
-
-	if (ret < 0)
-		return ret;
-
-	if (CMD_TFO(cmd)->task_sg_chaining == 0)
-		return 0;
-	/*
-	 * Currently prevent writers from multiple HW fabrics doing
-	 * pci_map_sg() to RD_DR's internal scatterlist memory.
-	 */
-	if (cmd->data_direction == DMA_TO_DEVICE) {
-		printk(KERN_ERR "DMA_TO_DEVICE not supported for"
-				" RAMDISK_DR with task_sg_chaining=1\n");
-		return -1;
-	}
-	/*
-	 * Special case for if task_sg_chaining is enabled, then
-	 * we setup struct se_task->task_sg[], as it will be used by
-	 * transport_do_task_sg_chain() for creating chainged SGLs
-	 * across multiple struct se_task->task_sg[].
-	 */
-	if (!(transport_calc_sg_num(task,
-			list_entry(T_TASK(cmd)->t_mem_list->next,
-				   struct se_mem, se_list),
-			task_offset)))
-		return -1;
-
-	return transport_map_mem_to_sg(task, se_mem_list, task->task_sg,
-			list_entry(T_TASK(cmd)->t_mem_list->next,
-				   struct se_mem, se_list),
-			out_se_mem, se_mem_cnt, task_offset_in);
-}
-
-/*	rd_DIRECT_do_task(): (Part of se_subsystem_api_t template)
- *
- *
- */
-static int rd_DIRECT_do_task(struct se_task *task)
-{
-	/*
-	 * At this point the locally allocated RD tables have been mapped
-	 * to struct se_mem elements in rd_DIRECT_do_se_mem_map().
-	 */
-	task->task_scsi_status = GOOD;
-	transport_complete_task(task, 1);
-
-	return PYX_TRANSPORT_SENT_TO_TRANSPORT;
-}
-
 /*	rd_free_task(): (Part of se_subsystem_api_t template)
  *
  *
@@ -956,7 +660,7 @@ static ssize_t rd_set_configfs_dev_params(
 		case Opt_rd_pages:
 			match_int(args, &arg);
 			rd_dev->rd_page_count = arg;
-			printk(KERN_INFO "RAMDISK: Referencing Page"
+			pr_debug("RAMDISK: Referencing Page"
 				" Count: %u\n", rd_dev->rd_page_count);
 			rd_dev->rd_flags |= RDF_HAS_PAGE_COUNT;
 			break;
@@ -974,8 +678,8 @@ static ssize_t rd_check_configfs_dev_params(struct se_hba *hba, struct se_subsys
 	struct rd_dev *rd_dev = se_dev->se_dev_su_ptr;
 
 	if (!(rd_dev->rd_flags & RDF_HAS_PAGE_COUNT)) {
-		printk(KERN_INFO "Missing rd_pages= parameter\n");
-		return -1;
+		pr_debug("Missing rd_pages= parameter\n");
+		return -EINVAL;
 	}
 
 	return 0;
@@ -1021,32 +725,11 @@ static sector_t rd_get_blocks(struct se_device *dev)
 {
 	struct rd_dev *rd_dev = dev->dev_ptr;
 	unsigned long long blocks_long = ((rd_dev->rd_page_count * PAGE_SIZE) /
-			DEV_ATTRIB(dev)->block_size) - 1;
+			dev->se_sub_dev->se_dev_attrib.block_size) - 1;
 
 	return blocks_long;
 }
 
-static struct se_subsystem_api rd_dr_template = {
-	.name			= "rd_dr",
-	.transport_type		= TRANSPORT_PLUGIN_VHBA_VDEV,
-	.attach_hba		= rd_attach_hba,
-	.detach_hba		= rd_detach_hba,
-	.allocate_virtdevice	= rd_DIRECT_allocate_virtdevice,
-	.create_virtdevice	= rd_DIRECT_create_virtdevice,
-	.free_device		= rd_free_device,
-	.alloc_task		= rd_alloc_task,
-	.do_task		= rd_DIRECT_do_task,
-	.free_task		= rd_free_task,
-	.check_configfs_dev_params = rd_check_configfs_dev_params,
-	.set_configfs_dev_params = rd_set_configfs_dev_params,
-	.show_configfs_dev_params = rd_show_configfs_dev_params,
-	.get_cdb		= rd_get_cdb,
-	.get_device_rev		= rd_get_device_rev,
-	.get_device_type	= rd_get_device_type,
-	.get_blocks		= rd_get_blocks,
-	.do_se_mem_map		= rd_DIRECT_do_se_mem_map,
-};
-
 static struct se_subsystem_api rd_mcp_template = {
 	.name			= "rd_mcp",
 	.transport_type		= TRANSPORT_PLUGIN_VHBA_VDEV,
@@ -1071,13 +754,8 @@ int __init rd_module_init(void)
 {
 	int ret;
 
-	ret = transport_subsystem_register(&rd_dr_template);
-	if (ret < 0)
-		return ret;
-
 	ret = transport_subsystem_register(&rd_mcp_template);
 	if (ret < 0) {
-		transport_subsystem_release(&rd_dr_template);
 		return ret;
 	}
 
@@ -1086,6 +764,5 @@ int __init rd_module_init(void)
 
 void rd_module_exit(void)
 {
-	transport_subsystem_release(&rd_dr_template);
 	transport_subsystem_release(&rd_mcp_template);
 }

drivers/target/target_core_rd.h

@@ -7,8 +7,6 @@
 
 /* Largest piece of memory kmalloc can allocate */
 #define RD_MAX_ALLOCATION_SIZE	65536
-/* Maximum queuedepth for the Ramdisk HBA */
-#define RD_HBA_QUEUE_DEPTH	256
 #define RD_DEVICE_QUEUE_DEPTH	32
 #define RD_MAX_DEVICE_QUEUE_DEPTH 128
 #define RD_BLOCKSIZE		512
@@ -34,8 +32,6 @@ struct rd_request {
 	u32		rd_page_count;
 	/* Scatterlist count */
 	u32		rd_size;
-	/* Ramdisk device */
-	struct rd_dev	*rd_dev;
 } ____cacheline_aligned;
 
 struct rd_dev_sg_table {

drivers/target/target_core_scdb.c

@@ -42,13 +42,13 @@
  */
 void split_cdb_XX_6(
 	unsigned long long lba,
-	u32 *sectors,
+	u32 sectors,
 	unsigned char *cdb)
 {
 	cdb[1] = (lba >> 16) & 0x1f;
 	cdb[2] = (lba >> 8) & 0xff;
 	cdb[3] = lba & 0xff;
-	cdb[4] = *sectors & 0xff;
+	cdb[4] = sectors & 0xff;
 }
 
 /*	split_cdb_XX_10():
@@ -57,11 +57,11 @@ void split_cdb_XX_6(
  */
 void split_cdb_XX_10(
 	unsigned long long lba,
-	u32 *sectors,
+	u32 sectors,
 	unsigned char *cdb)
 {
 	put_unaligned_be32(lba, &cdb[2]);
-	put_unaligned_be16(*sectors, &cdb[7]);
+	put_unaligned_be16(sectors, &cdb[7]);
 }
 
 /*	split_cdb_XX_12():
@@ -70,11 +70,11 @@ void split_cdb_XX_10(
  */
 void split_cdb_XX_12(
 	unsigned long long lba,
-	u32 *sectors,
+	u32 sectors,
 	unsigned char *cdb)
 {
 	put_unaligned_be32(lba, &cdb[2]);
-	put_unaligned_be32(*sectors, &cdb[6]);
+	put_unaligned_be32(sectors, &cdb[6]);
 }
 
 /*	split_cdb_XX_16():
@@ -83,11 +83,11 @@ void split_cdb_XX_12(
  */
 void split_cdb_XX_16(
 	unsigned long long lba,
-	u32 *sectors,
+	u32 sectors,
 	unsigned char *cdb)
 {
 	put_unaligned_be64(lba, &cdb[2]);
-	put_unaligned_be32(*sectors, &cdb[10]);
+	put_unaligned_be32(sectors, &cdb[10]);
 }
 
 /*
@@ -97,9 +97,9 @@ void split_cdb_XX_16(
  */
 void split_cdb_XX_32(
 	unsigned long long lba,
-	u32 *sectors,
+	u32 sectors,
 	unsigned char *cdb)
 {
 	put_unaligned_be64(lba, &cdb[12]);
-	put_unaligned_be32(*sectors, &cdb[28]);
+	put_unaligned_be32(sectors, &cdb[28]);
 }

drivers/target/target_core_scdb.h

@@ -1,10 +1,10 @@
 #ifndef TARGET_CORE_SCDB_H
 #define TARGET_CORE_SCDB_H
 
-extern void split_cdb_XX_6(unsigned long long, u32 *, unsigned char *);
-extern void split_cdb_XX_10(unsigned long long, u32 *, unsigned char *);
-extern void split_cdb_XX_12(unsigned long long, u32 *, unsigned char *);
-extern void split_cdb_XX_16(unsigned long long, u32 *, unsigned char *);
-extern void split_cdb_XX_32(unsigned long long, u32 *, unsigned char *);
+extern void split_cdb_XX_6(unsigned long long, u32, unsigned char *);
+extern void split_cdb_XX_10(unsigned long long, u32, unsigned char *);
+extern void split_cdb_XX_12(unsigned long long, u32, unsigned char *);
+extern void split_cdb_XX_16(unsigned long long, u32, unsigned char *);
+extern void split_cdb_XX_32(unsigned long long, u32, unsigned char *);
 
 #endif /* TARGET_CORE_SCDB_H */

drivers/target/target_core_stat.c

@@ -402,8 +402,8 @@ static ssize_t target_stat_scsi_lu_show_attr_lu_name(
 		return -ENODEV;
 	/* scsiLuWwnName */
 	return snprintf(page, PAGE_SIZE, "%s\n",
-			(strlen(DEV_T10_WWN(dev)->unit_serial)) ?
-			(char *)&DEV_T10_WWN(dev)->unit_serial[0] : "None");
+			(strlen(dev->se_sub_dev->t10_wwn.unit_serial)) ?
+			dev->se_sub_dev->t10_wwn.unit_serial : "None");
 }
 DEV_STAT_SCSI_LU_ATTR_RO(lu_name);
 
@@ -413,17 +413,17 @@ static ssize_t target_stat_scsi_lu_show_attr_vend(
 	struct se_subsystem_dev *se_subdev = container_of(sgrps,
 			struct se_subsystem_dev, dev_stat_grps);
 	struct se_device *dev = se_subdev->se_dev_ptr;
-	int j;
-	char str[28];
+	int i;
+	char str[sizeof(dev->se_sub_dev->t10_wwn.vendor)+1];
 
 	if (!dev)
 		return -ENODEV;
+
 	/* scsiLuVendorId */
-	memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28);
-	for (j = 0; j < 8; j++)
-		str[j] = ISPRINT(DEV_T10_WWN(dev)->vendor[j]) ?
-				DEV_T10_WWN(dev)->vendor[j] : 0x20;
-	str[8] = 0;
+	for (i = 0; i < sizeof(dev->se_sub_dev->t10_wwn.vendor); i++)
+		str[i] = ISPRINT(dev->se_sub_dev->t10_wwn.vendor[i]) ?
+			dev->se_sub_dev->t10_wwn.vendor[i] : ' ';
+	str[i] = '\0';
 	return snprintf(page, PAGE_SIZE, "%s\n", str);
 }
 DEV_STAT_SCSI_LU_ATTR_RO(vend);
@@ -434,18 +434,17 @@ static ssize_t target_stat_scsi_lu_show_attr_prod(
 	struct se_subsystem_dev *se_subdev = container_of(sgrps,
 			struct se_subsystem_dev, dev_stat_grps);
 	struct se_device *dev = se_subdev->se_dev_ptr;
-	int j;
-	char str[28];
+	int i;
+	char str[sizeof(dev->se_sub_dev->t10_wwn.model)+1];
 
 	if (!dev)
 		return -ENODEV;
 
 	/* scsiLuProductId */
-	memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28);
-	for (j = 0; j < 16; j++)
-		str[j] = ISPRINT(DEV_T10_WWN(dev)->model[j]) ?
-				DEV_T10_WWN(dev)->model[j] : 0x20;
-	str[16] = 0;
+	for (i = 0; i < sizeof(dev->se_sub_dev->t10_wwn.vendor); i++)
+		str[i] = ISPRINT(dev->se_sub_dev->t10_wwn.model[i]) ?
+			dev->se_sub_dev->t10_wwn.model[i] : ' ';
+	str[i] = '\0';
 	return snprintf(page, PAGE_SIZE, "%s\n", str);
 }
 DEV_STAT_SCSI_LU_ATTR_RO(prod);
@@ -456,18 +455,17 @@ static ssize_t target_stat_scsi_lu_show_attr_rev(
 	struct se_subsystem_dev *se_subdev = container_of(sgrps,
 			struct se_subsystem_dev, dev_stat_grps);
 	struct se_device *dev = se_subdev->se_dev_ptr;
-	int j;
-	char str[28];
+	int i;
+	char str[sizeof(dev->se_sub_dev->t10_wwn.revision)+1];
 
 	if (!dev)
 		return -ENODEV;
 
 	/* scsiLuRevisionId */
-	memcpy(&str[0], (void *)DEV_T10_WWN(dev), 28);
-	for (j = 0; j < 4; j++)
-		str[j] = ISPRINT(DEV_T10_WWN(dev)->revision[j]) ?
-				DEV_T10_WWN(dev)->revision[j] : 0x20;
-	str[4] = 0;
+	for (i = 0; i < sizeof(dev->se_sub_dev->t10_wwn.revision); i++)
+		str[i] = ISPRINT(dev->se_sub_dev->t10_wwn.revision[i]) ?
+			dev->se_sub_dev->t10_wwn.revision[i] : ' ';
+	str[i] = '\0';
 	return snprintf(page, PAGE_SIZE, "%s\n", str);
 }
 DEV_STAT_SCSI_LU_ATTR_RO(rev);
@@ -484,7 +482,7 @@ static ssize_t target_stat_scsi_lu_show_attr_dev_type(
 
 	/* scsiLuPeripheralType */
 	return snprintf(page, PAGE_SIZE, "%u\n",
-			TRANSPORT(dev)->get_device_type(dev));
+			dev->transport->get_device_type(dev));
 }
 DEV_STAT_SCSI_LU_ATTR_RO(dev_type);
 
@@ -668,18 +666,18 @@ static struct config_item_type target_stat_scsi_lu_cit = {
  */
 void target_stat_setup_dev_default_groups(struct se_subsystem_dev *se_subdev)
 {
-	struct config_group *dev_stat_grp = &DEV_STAT_GRP(se_subdev)->stat_group;
+	struct config_group *dev_stat_grp = &se_subdev->dev_stat_grps.stat_group;
 
-	config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_dev_group,
+	config_group_init_type_name(&se_subdev->dev_stat_grps.scsi_dev_group,
 			"scsi_dev", &target_stat_scsi_dev_cit);
-	config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group,
+	config_group_init_type_name(&se_subdev->dev_stat_grps.scsi_tgt_dev_group,
 			"scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit);
-	config_group_init_type_name(&DEV_STAT_GRP(se_subdev)->scsi_lu_group,
+	config_group_init_type_name(&se_subdev->dev_stat_grps.scsi_lu_group,
 			"scsi_lu", &target_stat_scsi_lu_cit);
 
-	dev_stat_grp->default_groups[0] = &DEV_STAT_GRP(se_subdev)->scsi_dev_group;
-	dev_stat_grp->default_groups[1] = &DEV_STAT_GRP(se_subdev)->scsi_tgt_dev_group;
-	dev_stat_grp->default_groups[2] = &DEV_STAT_GRP(se_subdev)->scsi_lu_group;
+	dev_stat_grp->default_groups[0] = &se_subdev->dev_stat_grps.scsi_dev_group;
+	dev_stat_grp->default_groups[1] = &se_subdev->dev_stat_grps.scsi_tgt_dev_group;
+	dev_stat_grp->default_groups[2] = &se_subdev->dev_stat_grps.scsi_lu_group;
 	dev_stat_grp->default_groups[3] = NULL;
 }
 
@@ -922,7 +920,7 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_name(
 	tpg = sep->sep_tpg;
 
 	ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
-		TPG_TFO(tpg)->get_fabric_name(), sep->sep_index);
+		tpg->se_tpg_tfo->get_fabric_name(), sep->sep_index);
 	spin_unlock(&lun->lun_sep_lock);
 	return ret;
 }
@@ -945,8 +943,8 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_port_index(
 	tpg = sep->sep_tpg;
 
 	ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
-		TPG_TFO(tpg)->tpg_get_wwn(tpg), "+t+",
-		TPG_TFO(tpg)->tpg_get_tag(tpg));
+		tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+",
+		tpg->se_tpg_tfo->tpg_get_tag(tpg));
 	spin_unlock(&lun->lun_sep_lock);
 	return ret;
 }
@@ -1128,7 +1126,7 @@ static ssize_t target_stat_scsi_transport_show_attr_device(
 	tpg = sep->sep_tpg;
 	/* scsiTransportType */
 	ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
-			TPG_TFO(tpg)->get_fabric_name());
+			tpg->se_tpg_tfo->get_fabric_name());
 	spin_unlock(&lun->lun_sep_lock);
 	return ret;
 }
@@ -1150,7 +1148,7 @@ static ssize_t target_stat_scsi_transport_show_attr_indx(
 	}
 	tpg = sep->sep_tpg;
 	ret = snprintf(page, PAGE_SIZE, "%u\n",
-			TPG_TFO(tpg)->tpg_get_inst_index(tpg));
+			tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
 	spin_unlock(&lun->lun_sep_lock);
 	return ret;
 }
@@ -1173,10 +1171,10 @@ static ssize_t target_stat_scsi_transport_show_attr_dev_name(
 		return -ENODEV;
 	}
 	tpg = sep->sep_tpg;
-	wwn = DEV_T10_WWN(dev);
+	wwn = &dev->se_sub_dev->t10_wwn;
 	/* scsiTransportDevName */
 	ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
-			TPG_TFO(tpg)->tpg_get_wwn(tpg),
+			tpg->se_tpg_tfo->tpg_get_wwn(tpg),
 			(strlen(wwn->unit_serial)) ? wwn->unit_serial :
 			wwn->vendor);
 	spin_unlock(&lun->lun_sep_lock);
@@ -1212,18 +1210,18 @@ static struct config_item_type target_stat_scsi_transport_cit = {
  */
 void target_stat_setup_port_default_groups(struct se_lun *lun)
 {
-	struct config_group *port_stat_grp = &PORT_STAT_GRP(lun)->stat_group;
+	struct config_group *port_stat_grp = &lun->port_stat_grps.stat_group;
 
-	config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_port_group,
+	config_group_init_type_name(&lun->port_stat_grps.scsi_port_group,
 			"scsi_port", &target_stat_scsi_port_cit);
-	config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_tgt_port_group,
+	config_group_init_type_name(&lun->port_stat_grps.scsi_tgt_port_group,
 			"scsi_tgt_port", &target_stat_scsi_tgt_port_cit);
-	config_group_init_type_name(&PORT_STAT_GRP(lun)->scsi_transport_group,
+	config_group_init_type_name(&lun->port_stat_grps.scsi_transport_group,
 			"scsi_transport", &target_stat_scsi_transport_cit);
 
-	port_stat_grp->default_groups[0] = &PORT_STAT_GRP(lun)->scsi_port_group;
-	port_stat_grp->default_groups[1] = &PORT_STAT_GRP(lun)->scsi_tgt_port_group;
-	port_stat_grp->default_groups[2] = &PORT_STAT_GRP(lun)->scsi_transport_group;
+	port_stat_grp->default_groups[0] = &lun->port_stat_grps.scsi_port_group;
+	port_stat_grp->default_groups[1] = &lun->port_stat_grps.scsi_tgt_port_group;
+	port_stat_grp->default_groups[2] = &lun->port_stat_grps.scsi_transport_group;
 	port_stat_grp->default_groups[3] = NULL;
 }
 
@@ -1264,7 +1262,7 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_inst(
 	tpg = nacl->se_tpg;
 	/* scsiInstIndex */
 	ret = snprintf(page, PAGE_SIZE, "%u\n",
-			TPG_TFO(tpg)->tpg_get_inst_index(tpg));
+			tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
 	spin_unlock_irq(&nacl->device_list_lock);
 	return ret;
 }
@@ -1314,7 +1312,7 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_port(
 	}
 	tpg = nacl->se_tpg;
 	/* scsiAuthIntrTgtPortIndex */
-	ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg));
+	ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
 	spin_unlock_irq(&nacl->device_list_lock);
 	return ret;
 }
@@ -1632,7 +1630,7 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_inst(
 	tpg = nacl->se_tpg;
 	/* scsiInstIndex */
 	ret = snprintf(page, PAGE_SIZE, "%u\n",
-			TPG_TFO(tpg)->tpg_get_inst_index(tpg));
+			tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
 	spin_unlock_irq(&nacl->device_list_lock);
 	return ret;
 }
@@ -1682,7 +1680,7 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_port(
 	}
 	tpg = nacl->se_tpg;
 	/* scsiPortIndex */
-	ret = snprintf(page, PAGE_SIZE, "%u\n", TPG_TFO(tpg)->tpg_get_tag(tpg));
+	ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
 	spin_unlock_irq(&nacl->device_list_lock);
 	return ret;
 }
@@ -1708,7 +1706,7 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_indx(
 	tpg = nacl->se_tpg;
 	/* scsiAttIntrPortIndex */
 	ret = snprintf(page, PAGE_SIZE, "%u\n",
-			TPG_TFO(tpg)->sess_get_index(se_sess));
+			tpg->se_tpg_tfo->sess_get_index(se_sess));
 	spin_unlock_irq(&nacl->nacl_sess_lock);
 	return ret;
 }
@@ -1757,8 +1755,8 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident(
 	tpg = nacl->se_tpg;
 	/* scsiAttIntrPortName+scsiAttIntrPortIdentifier */
 	memset(buf, 0, 64);
-	if (TPG_TFO(tpg)->sess_get_initiator_sid != NULL)
-		TPG_TFO(tpg)->sess_get_initiator_sid(se_sess,
+	if (tpg->se_tpg_tfo->sess_get_initiator_sid != NULL)
+		tpg->se_tpg_tfo->sess_get_initiator_sid(se_sess,
 				(unsigned char *)&buf[0], 64);
 
 	ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf);
@@ -1797,14 +1795,14 @@ static struct config_item_type target_stat_scsi_att_intr_port_cit = {
  */
 void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl)
 {
-	struct config_group *ml_stat_grp = &ML_STAT_GRPS(lacl)->stat_group;
+	struct config_group *ml_stat_grp = &lacl->ml_stat_grps.stat_group;
 
-	config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_auth_intr_group,
+	config_group_init_type_name(&lacl->ml_stat_grps.scsi_auth_intr_group,
 			"scsi_auth_intr", &target_stat_scsi_auth_intr_cit);
-	config_group_init_type_name(&ML_STAT_GRPS(lacl)->scsi_att_intr_port_group,
+	config_group_init_type_name(&lacl->ml_stat_grps.scsi_att_intr_port_group,
 			"scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit);
 
-	ml_stat_grp->default_groups[0] = &ML_STAT_GRPS(lacl)->scsi_auth_intr_group;
-	ml_stat_grp->default_groups[1] = &ML_STAT_GRPS(lacl)->scsi_att_intr_port_group;
+	ml_stat_grp->default_groups[0] = &lacl->ml_stat_grps.scsi_auth_intr_group;
+	ml_stat_grp->default_groups[1] = &lacl->ml_stat_grps.scsi_att_intr_port_group;
 	ml_stat_grp->default_groups[2] = NULL;
 }

drivers/target/target_core_tmr.c

@@ -41,13 +41,6 @@
 #include "target_core_alua.h"
 #include "target_core_pr.h"
 
-#define DEBUG_LUN_RESET
-#ifdef DEBUG_LUN_RESET
-#define DEBUG_LR(x...) printk(KERN_INFO x)
-#else
-#define DEBUG_LR(x...)
-#endif
-
 struct se_tmr_req *core_tmr_alloc_req(
 	struct se_cmd *se_cmd,
 	void *fabric_tmr_ptr,
@@ -57,8 +50,8 @@ struct se_tmr_req *core_tmr_alloc_req(
 
 	tmr = kmem_cache_zalloc(se_tmr_req_cache, (in_interrupt()) ?
 					GFP_ATOMIC : GFP_KERNEL);
-	if (!(tmr)) {
-		printk(KERN_ERR "Unable to allocate struct se_tmr_req\n");
+	if (!tmr) {
+		pr_err("Unable to allocate struct se_tmr_req\n");
 		return ERR_PTR(-ENOMEM);
 	}
 	tmr->task_cmd = se_cmd;
@@ -80,9 +73,9 @@ void core_tmr_release_req(
 		return;
 	}
 
-	spin_lock(&dev->se_tmr_lock);
+	spin_lock_irq(&dev->se_tmr_lock);
 	list_del(&tmr->tmr_list);
-	spin_unlock(&dev->se_tmr_lock);
+	spin_unlock_irq(&dev->se_tmr_lock);
 
 	kmem_cache_free(se_tmr_req_cache, tmr);
 }
@@ -93,14 +86,14 @@ static void core_tmr_handle_tas_abort(
 	int tas,
 	int fe_count)
 {
-	if (!(fe_count)) {
+	if (!fe_count) {
 		transport_cmd_finish_abort(cmd, 1);
 		return;
 	}
 	/*
 	 * TASK ABORTED status (TAS) bit support
 	*/
-	if (((tmr_nacl != NULL) &&
+	if ((tmr_nacl &&
 	     (tmr_nacl == cmd->se_sess->se_node_acl)) || tas)
 		transport_send_task_abort(cmd);
 
@@ -113,15 +106,14 @@ int core_tmr_lun_reset(
 	struct list_head *preempt_and_abort_list,
 	struct se_cmd *prout_cmd)
 {
-	struct se_cmd *cmd;
-	struct se_queue_req *qr, *qr_tmp;
+	struct se_cmd *cmd, *tcmd;
 	struct se_node_acl *tmr_nacl = NULL;
 	struct se_portal_group *tmr_tpg = NULL;
-	struct se_queue_obj *qobj = dev->dev_queue_obj;
+	struct se_queue_obj *qobj = &dev->dev_queue_obj;
 	struct se_tmr_req *tmr_p, *tmr_pp;
 	struct se_task *task, *task_tmp;
 	unsigned long flags;
-	int fe_count, state, tas;
+	int fe_count, tas;
 	/*
 	 * TASK_ABORTED status bit, this is configurable via ConfigFS
 	 * struct se_device attributes.  spc4r17 section 7.4.6 Control mode page
@@ -133,7 +125,7 @@ int core_tmr_lun_reset(
 	 * which the command was received shall be completed with TASK ABORTED
 	 * status (see SAM-4).
 	 */
-	tas = DEV_ATTRIB(dev)->emulate_tas;
+	tas = dev->se_sub_dev->se_dev_attrib.emulate_tas;
 	/*
 	 * Determine if this se_tmr is coming from a $FABRIC_MOD
 	 * or struct se_device passthrough..
@@ -142,20 +134,20 @@ int core_tmr_lun_reset(
 		tmr_nacl = tmr->task_cmd->se_sess->se_node_acl;
 		tmr_tpg = tmr->task_cmd->se_sess->se_tpg;
 		if (tmr_nacl && tmr_tpg) {
-			DEBUG_LR("LUN_RESET: TMR caller fabric: %s"
+			pr_debug("LUN_RESET: TMR caller fabric: %s"
 				" initiator port %s\n",
-				TPG_TFO(tmr_tpg)->get_fabric_name(),
+				tmr_tpg->se_tpg_tfo->get_fabric_name(),
 				tmr_nacl->initiatorname);
 		}
 	}
-	DEBUG_LR("LUN_RESET: %s starting for [%s], tas: %d\n",
+	pr_debug("LUN_RESET: %s starting for [%s], tas: %d\n",
 		(preempt_and_abort_list) ? "Preempt" : "TMR",
-		TRANSPORT(dev)->name, tas);
+		dev->transport->name, tas);
 	/*
 	 * Release all pending and outgoing TMRs aside from the received
 	 * LUN_RESET tmr..
 	 */
-	spin_lock(&dev->se_tmr_lock);
+	spin_lock_irq(&dev->se_tmr_lock);
 	list_for_each_entry_safe(tmr_p, tmr_pp, &dev->dev_tmr_list, tmr_list) {
 		/*
 		 * Allow the received TMR to return with FUNCTION_COMPLETE.
@@ -164,8 +156,8 @@ int core_tmr_lun_reset(
 			continue;
 
 		cmd = tmr_p->task_cmd;
-		if (!(cmd)) {
-			printk(KERN_ERR "Unable to locate struct se_cmd for TMR\n");
+		if (!cmd) {
+			pr_err("Unable to locate struct se_cmd for TMR\n");
 			continue;
 		}
 		/*
@@ -173,33 +165,33 @@ int core_tmr_lun_reset(
 		 * parameter (eg: for PROUT PREEMPT_AND_ABORT service action
 		 * skip non regisration key matching TMRs.
 		 */
-		if ((preempt_and_abort_list != NULL) &&
+		if (preempt_and_abort_list &&
 		    (core_scsi3_check_cdb_abort_and_preempt(
 					preempt_and_abort_list, cmd) != 0))
 			continue;
-		spin_unlock(&dev->se_tmr_lock);
+		spin_unlock_irq(&dev->se_tmr_lock);
 
-		spin_lock_irqsave(&T_TASK(cmd)->t_state_lock, flags);
-		if (!(atomic_read(&T_TASK(cmd)->t_transport_active))) {
-			spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, flags);
-			spin_lock(&dev->se_tmr_lock);
+		spin_lock_irqsave(&cmd->t_state_lock, flags);
+		if (!atomic_read(&cmd->t_transport_active)) {
+			spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+			spin_lock_irq(&dev->se_tmr_lock);
 			continue;
 		}
 		if (cmd->t_state == TRANSPORT_ISTATE_PROCESSING) {
-			spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, flags);
-			spin_lock(&dev->se_tmr_lock);
+			spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+			spin_lock_irq(&dev->se_tmr_lock);
 			continue;
 		}
-		DEBUG_LR("LUN_RESET: %s releasing TMR %p Function: 0x%02x,"
+		pr_debug("LUN_RESET: %s releasing TMR %p Function: 0x%02x,"
 			" Response: 0x%02x, t_state: %d\n",
 			(preempt_and_abort_list) ? "Preempt" : "", tmr_p,
 			tmr_p->function, tmr_p->response, cmd->t_state);
-		spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, flags);
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
 		transport_cmd_finish_abort_tmr(cmd);
-		spin_lock(&dev->se_tmr_lock);
+		spin_lock_irq(&dev->se_tmr_lock);
 	}
-	spin_unlock(&dev->se_tmr_lock);
+	spin_unlock_irq(&dev->se_tmr_lock);
 	/*
 	 * Complete outstanding struct se_task CDBs with TASK_ABORTED SAM status.
 	 * This is following sam4r17, section 5.6 Aborting commands, Table 38
@@ -224,23 +216,17 @@ int core_tmr_lun_reset(
 	spin_lock_irqsave(&dev->execute_task_lock, flags);
 	list_for_each_entry_safe(task, task_tmp, &dev->state_task_list,
 				t_state_list) {
-		if (!(TASK_CMD(task))) {
-			printk(KERN_ERR "TASK_CMD(task) is NULL!\n");
+		if (!task->task_se_cmd) {
+			pr_err("task->task_se_cmd is NULL!\n");
 			continue;
 		}
-		cmd = TASK_CMD(task);
+		cmd = task->task_se_cmd;
 
-		if (!T_TASK(cmd)) {
-			printk(KERN_ERR "T_TASK(cmd) is NULL for task: %p cmd:"
-				" %p ITT: 0x%08x\n", task, cmd,
-				CMD_TFO(cmd)->get_task_tag(cmd));
-			continue;
-		}
 		/*
 		 * For PREEMPT_AND_ABORT usage, only process commands
 		 * with a matching reservation key.
 		 */
-		if ((preempt_and_abort_list != NULL) &&
+		if (preempt_and_abort_list &&
 		    (core_scsi3_check_cdb_abort_and_preempt(
 					preempt_and_abort_list, cmd) != 0))
 			continue;
@@ -254,38 +240,38 @@ int core_tmr_lun_reset(
 		atomic_set(&task->task_state_active, 0);
 		spin_unlock_irqrestore(&dev->execute_task_lock, flags);
 
-		spin_lock_irqsave(&T_TASK(cmd)->t_state_lock, flags);
-		DEBUG_LR("LUN_RESET: %s cmd: %p task: %p"
+		spin_lock_irqsave(&cmd->t_state_lock, flags);
+		pr_debug("LUN_RESET: %s cmd: %p task: %p"
 			" ITT/CmdSN: 0x%08x/0x%08x, i_state: %d, t_state/"
 			"def_t_state: %d/%d cdb: 0x%02x\n",
 			(preempt_and_abort_list) ? "Preempt" : "", cmd, task,
-			CMD_TFO(cmd)->get_task_tag(cmd), 0,
-			CMD_TFO(cmd)->get_cmd_state(cmd), cmd->t_state,
-			cmd->deferred_t_state, T_TASK(cmd)->t_task_cdb[0]);
-		DEBUG_LR("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
+			cmd->se_tfo->get_task_tag(cmd), 0,
+			cmd->se_tfo->get_cmd_state(cmd), cmd->t_state,
+			cmd->deferred_t_state, cmd->t_task_cdb[0]);
+		pr_debug("LUN_RESET: ITT[0x%08x] - pr_res_key: 0x%016Lx"
 			" t_task_cdbs: %d t_task_cdbs_left: %d"
 			" t_task_cdbs_sent: %d -- t_transport_active: %d"
 			" t_transport_stop: %d t_transport_sent: %d\n",
-			CMD_TFO(cmd)->get_task_tag(cmd), cmd->pr_res_key,
-			T_TASK(cmd)->t_task_cdbs,
-			atomic_read(&T_TASK(cmd)->t_task_cdbs_left),
-			atomic_read(&T_TASK(cmd)->t_task_cdbs_sent),
-			atomic_read(&T_TASK(cmd)->t_transport_active),
-			atomic_read(&T_TASK(cmd)->t_transport_stop),
-			atomic_read(&T_TASK(cmd)->t_transport_sent));
+			cmd->se_tfo->get_task_tag(cmd), cmd->pr_res_key,
+			cmd->t_task_list_num,
+			atomic_read(&cmd->t_task_cdbs_left),
+			atomic_read(&cmd->t_task_cdbs_sent),
+			atomic_read(&cmd->t_transport_active),
+			atomic_read(&cmd->t_transport_stop),
+			atomic_read(&cmd->t_transport_sent));
 
 		if (atomic_read(&task->task_active)) {
 			atomic_set(&task->task_stop, 1);
 			spin_unlock_irqrestore(
-				&T_TASK(cmd)->t_state_lock, flags);
+				&cmd->t_state_lock, flags);
 
-			DEBUG_LR("LUN_RESET: Waiting for task: %p to shutdown"
+			pr_debug("LUN_RESET: Waiting for task: %p to shutdown"
 				" for dev: %p\n", task, dev);
 			wait_for_completion(&task->task_stop_comp);
-			DEBUG_LR("LUN_RESET Completed task: %p shutdown for"
+			pr_debug("LUN_RESET Completed task: %p shutdown for"
 				" dev: %p\n", task, dev);
-			spin_lock_irqsave(&T_TASK(cmd)->t_state_lock, flags);
-			atomic_dec(&T_TASK(cmd)->t_task_cdbs_left);
+			spin_lock_irqsave(&cmd->t_state_lock, flags);
+			atomic_dec(&cmd->t_task_cdbs_left);
 
 			atomic_set(&task->task_active, 0);
 			atomic_set(&task->task_stop, 0);
@@ -295,34 +281,34 @@ int core_tmr_lun_reset(
 		}
 		__transport_stop_task_timer(task, &flags);
 
-		if (!(atomic_dec_and_test(&T_TASK(cmd)->t_task_cdbs_ex_left))) {
+		if (!atomic_dec_and_test(&cmd->t_task_cdbs_ex_left)) {
 			spin_unlock_irqrestore(
-					&T_TASK(cmd)->t_state_lock, flags);
-			DEBUG_LR("LUN_RESET: Skipping task: %p, dev: %p for"
+					&cmd->t_state_lock, flags);
+			pr_debug("LUN_RESET: Skipping task: %p, dev: %p for"
 				" t_task_cdbs_ex_left: %d\n", task, dev,
-				atomic_read(&T_TASK(cmd)->t_task_cdbs_ex_left));
+				atomic_read(&cmd->t_task_cdbs_ex_left));
 
 			spin_lock_irqsave(&dev->execute_task_lock, flags);
 			continue;
 		}
-		fe_count = atomic_read(&T_TASK(cmd)->t_fe_count);
+		fe_count = atomic_read(&cmd->t_fe_count);
 
-		if (atomic_read(&T_TASK(cmd)->t_transport_active)) {
-			DEBUG_LR("LUN_RESET: got t_transport_active = 1 for"
+		if (atomic_read(&cmd->t_transport_active)) {
+			pr_debug("LUN_RESET: got t_transport_active = 1 for"
 				" task: %p, t_fe_count: %d dev: %p\n", task,
 				fe_count, dev);
-			atomic_set(&T_TASK(cmd)->t_transport_aborted, 1);
-			spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock,
+			atomic_set(&cmd->t_transport_aborted, 1);
+			spin_unlock_irqrestore(&cmd->t_state_lock,
 						flags);
 			core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
 
 			spin_lock_irqsave(&dev->execute_task_lock, flags);
 			continue;
 		}
-		DEBUG_LR("LUN_RESET: Got t_transport_active = 0 for task: %p,"
+		pr_debug("LUN_RESET: Got t_transport_active = 0 for task: %p,"
 			" t_fe_count: %d dev: %p\n", task, fe_count, dev);
-		atomic_set(&T_TASK(cmd)->t_transport_aborted, 1);
-		spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, flags);
+		atomic_set(&cmd->t_transport_aborted, 1);
+		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 		core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count);
 
 		spin_lock_irqsave(&dev->execute_task_lock, flags);
@@ -337,25 +323,12 @@ int core_tmr_lun_reset(
 	 * reference, otherwise the struct se_cmd is released.
 	 */
 	spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
-	list_for_each_entry_safe(qr, qr_tmp, &qobj->qobj_list, qr_list) {
-		cmd = (struct se_cmd *)qr->cmd;
-		if (!(cmd)) {
-			/*
-			 * Skip these for non PREEMPT_AND_ABORT usage..
-			 */
-			if (preempt_and_abort_list != NULL)
-				continue;
-
-			atomic_dec(&qobj->queue_cnt);
-			list_del(&qr->qr_list);
-			kfree(qr);
-			continue;
-		}
+	list_for_each_entry_safe(cmd, tcmd, &qobj->qobj_list, se_queue_node) {
 		/*
 		 * For PREEMPT_AND_ABORT usage, only process commands
 		 * with a matching reservation key.
 		 */
-		if ((preempt_and_abort_list != NULL) &&
+		if (preempt_and_abort_list &&
 		    (core_scsi3_check_cdb_abort_and_preempt(
 					preempt_and_abort_list, cmd) != 0))
 			continue;
@@ -365,30 +338,22 @@ int core_tmr_lun_reset(
 		if (prout_cmd == cmd)
 			continue;
 
-		atomic_dec(&T_TASK(cmd)->t_transport_queue_active);
+		atomic_dec(&cmd->t_transport_queue_active);
 		atomic_dec(&qobj->queue_cnt);
-		list_del(&qr->qr_list);
+		list_del(&cmd->se_queue_node);
 		spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
 
-		state = qr->state;
-		kfree(qr);
-
-		DEBUG_LR("LUN_RESET: %s from Device Queue: cmd: %p t_state:"
+		pr_debug("LUN_RESET: %s from Device Queue: cmd: %p t_state:"
 			" %d t_fe_count: %d\n", (preempt_and_abort_list) ?
-			"Preempt" : "", cmd, state,
-			atomic_read(&T_TASK(cmd)->t_fe_count));
+			"Preempt" : "", cmd, cmd->t_state,
+			atomic_read(&cmd->t_fe_count));
 		/*
 		 * Signal that the command has failed via cmd->se_cmd_flags,
-		 * and call TFO->new_cmd_failure() to wakeup any fabric
-		 * dependent code used to wait for unsolicited data out
-		 * allocation to complete.  The fabric module is expected
-		 * to dump any remaining unsolicited data out for the aborted
-		 * command at this point.
 		 */
 		transport_new_cmd_failure(cmd);
 
 		core_tmr_handle_tas_abort(tmr_nacl, cmd, tas,
-				atomic_read(&T_TASK(cmd)->t_fe_count));
+				atomic_read(&cmd->t_fe_count));
 		spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
 	}
 	spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
@@ -396,21 +361,21 @@ int core_tmr_lun_reset(
 	 * Clear any legacy SPC-2 reservation when called during
 	 * LOGICAL UNIT RESET
 	 */
-	if (!(preempt_and_abort_list) &&
+	if (!preempt_and_abort_list &&
 	     (dev->dev_flags & DF_SPC2_RESERVATIONS)) {
 		spin_lock(&dev->dev_reservation_lock);
 		dev->dev_reserved_node_acl = NULL;
 		dev->dev_flags &= ~DF_SPC2_RESERVATIONS;
 		spin_unlock(&dev->dev_reservation_lock);
-		printk(KERN_INFO "LUN_RESET: SCSI-2 Released reservation\n");
+		pr_debug("LUN_RESET: SCSI-2 Released reservation\n");
 	}
 
 	spin_lock_irq(&dev->stats_lock);
 	dev->num_resets++;
 	spin_unlock_irq(&dev->stats_lock);
 
-	DEBUG_LR("LUN_RESET: %s for [%s] Complete\n",
+	pr_debug("LUN_RESET: %s for [%s] Complete\n",
 			(preempt_and_abort_list) ? "Preempt" : "TMR",
-			TRANSPORT(dev)->name);
+			dev->transport->name);
 	return 0;
 }

drivers/target/target_core_tpg.c

@@ -44,6 +44,12 @@
 #include <target/target_core_fabric_ops.h>
 
 #include "target_core_hba.h"
+#include "target_core_stat.h"
+
+extern struct se_device *g_lun0_dev;
+
+static DEFINE_SPINLOCK(tpg_lock);
+static LIST_HEAD(tpg_list);
 
 /*	core_clear_initiator_node_from_tpg():
  *
@@ -66,9 +72,9 @@ static void core_clear_initiator_node_from_tpg(
 			continue;
 
 		if (!deve->se_lun) {
-			printk(KERN_ERR "%s device entries device pointer is"
+			pr_err("%s device entries device pointer is"
 				" NULL, but Initiator has access.\n",
-				TPG_TFO(tpg)->get_fabric_name());
+				tpg->se_tpg_tfo->get_fabric_name());
 			continue;
 		}
 
@@ -80,14 +86,13 @@ static void core_clear_initiator_node_from_tpg(
 		spin_lock(&lun->lun_acl_lock);
 		list_for_each_entry_safe(acl, acl_tmp,
 					&lun->lun_acl_list, lacl_list) {
-			if (!(strcmp(acl->initiatorname,
-					nacl->initiatorname)) &&
-			     (acl->mapped_lun == deve->mapped_lun))
+			if (!strcmp(acl->initiatorname, nacl->initiatorname) &&
+			    (acl->mapped_lun == deve->mapped_lun))
 				break;
 		}
 
 		if (!acl) {
-			printk(KERN_ERR "Unable to locate struct se_lun_acl for %s,"
+			pr_err("Unable to locate struct se_lun_acl for %s,"
 				" mapped_lun: %u\n", nacl->initiatorname,
 				deve->mapped_lun);
 			spin_unlock(&lun->lun_acl_lock);
@@ -115,7 +120,7 @@ struct se_node_acl *__core_tpg_get_initiator_node_acl(
 	struct se_node_acl *acl;
 
 	list_for_each_entry(acl, &tpg->acl_node_list, acl_list) {
-		if (!(strcmp(acl->initiatorname, initiatorname)))
+		if (!strcmp(acl->initiatorname, initiatorname))
 			return acl;
 	}
 
@@ -134,8 +139,8 @@ struct se_node_acl *core_tpg_get_initiator_node_acl(
 
 	spin_lock_bh(&tpg->acl_node_lock);
 	list_for_each_entry(acl, &tpg->acl_node_list, acl_list) {
-		if (!(strcmp(acl->initiatorname, initiatorname)) &&
-		   (!(acl->dynamic_node_acl))) {
+		if (!strcmp(acl->initiatorname, initiatorname) &&
+		    !acl->dynamic_node_acl) {
 			spin_unlock_bh(&tpg->acl_node_lock);
 			return acl;
 		}
@@ -171,7 +176,7 @@ void core_tpg_add_node_to_devs(
 		 * By default in LIO-Target $FABRIC_MOD,
 		 * demo_mode_write_protect is ON, or READ_ONLY;
 		 */
-		if (!(TPG_TFO(tpg)->tpg_check_demo_mode_write_protect(tpg))) {
+		if (!tpg->se_tpg_tfo->tpg_check_demo_mode_write_protect(tpg)) {
 			if (dev->dev_flags & DF_READ_ONLY)
 				lun_access = TRANSPORT_LUNFLAGS_READ_ONLY;
 			else
@@ -181,16 +186,16 @@ void core_tpg_add_node_to_devs(
 			 * Allow only optical drives to issue R/W in default RO
 			 * demo mode.
 			 */
-			if (TRANSPORT(dev)->get_device_type(dev) == TYPE_DISK)
+			if (dev->transport->get_device_type(dev) == TYPE_DISK)
 				lun_access = TRANSPORT_LUNFLAGS_READ_ONLY;
 			else
 				lun_access = TRANSPORT_LUNFLAGS_READ_WRITE;
 		}
 
-		printk(KERN_INFO "TARGET_CORE[%s]->TPG[%u]_LUN[%u] - Adding %s"
+		pr_debug("TARGET_CORE[%s]->TPG[%u]_LUN[%u] - Adding %s"
 			" access for LUN in Demo Mode\n",
-			TPG_TFO(tpg)->get_fabric_name(),
-			TPG_TFO(tpg)->tpg_get_tag(tpg), lun->unpacked_lun,
+			tpg->se_tpg_tfo->get_fabric_name(),
+			tpg->se_tpg_tfo->tpg_get_tag(tpg), lun->unpacked_lun,
 			(lun_access == TRANSPORT_LUNFLAGS_READ_WRITE) ?
 			"READ-WRITE" : "READ-ONLY");
 
@@ -210,8 +215,8 @@ static int core_set_queue_depth_for_node(
 	struct se_node_acl *acl)
 {
 	if (!acl->queue_depth) {
-		printk(KERN_ERR "Queue depth for %s Initiator Node: %s is 0,"
-			"defaulting to 1.\n", TPG_TFO(tpg)->get_fabric_name(),
+		pr_err("Queue depth for %s Initiator Node: %s is 0,"
+			"defaulting to 1.\n", tpg->se_tpg_tfo->get_fabric_name(),
 			acl->initiatorname);
 		acl->queue_depth = 1;
 	}
@@ -230,10 +235,10 @@ static int core_create_device_list_for_node(struct se_node_acl *nacl)
 
 	nacl->device_list = kzalloc(sizeof(struct se_dev_entry) *
 				TRANSPORT_MAX_LUNS_PER_TPG, GFP_KERNEL);
-	if (!(nacl->device_list)) {
-		printk(KERN_ERR "Unable to allocate memory for"
+	if (!nacl->device_list) {
+		pr_err("Unable to allocate memory for"
 			" struct se_node_acl->device_list\n");
-		return -1;
+		return -ENOMEM;
 	}
 	for (i = 0; i < TRANSPORT_MAX_LUNS_PER_TPG; i++) {
 		deve = &nacl->device_list[i];
@@ -259,14 +264,14 @@ struct se_node_acl *core_tpg_check_initiator_node_acl(
 	struct se_node_acl *acl;
 
 	acl = core_tpg_get_initiator_node_acl(tpg, initiatorname);
-	if ((acl))
+	if (acl)
 		return acl;
 
-	if (!(TPG_TFO(tpg)->tpg_check_demo_mode(tpg)))
+	if (!tpg->se_tpg_tfo->tpg_check_demo_mode(tpg))
 		return NULL;
 
-	acl =  TPG_TFO(tpg)->tpg_alloc_fabric_acl(tpg);
-	if (!(acl))
+	acl =  tpg->se_tpg_tfo->tpg_alloc_fabric_acl(tpg);
+	if (!acl)
 		return NULL;
 
 	INIT_LIST_HEAD(&acl->acl_list);
@@ -274,23 +279,23 @@ struct se_node_acl *core_tpg_check_initiator_node_acl(
 	spin_lock_init(&acl->device_list_lock);
 	spin_lock_init(&acl->nacl_sess_lock);
 	atomic_set(&acl->acl_pr_ref_count, 0);
-	acl->queue_depth = TPG_TFO(tpg)->tpg_get_default_depth(tpg);
+	acl->queue_depth = tpg->se_tpg_tfo->tpg_get_default_depth(tpg);
 	snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname);
 	acl->se_tpg = tpg;
 	acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
 	spin_lock_init(&acl->stats_lock);
 	acl->dynamic_node_acl = 1;
 
-	TPG_TFO(tpg)->set_default_node_attributes(acl);
+	tpg->se_tpg_tfo->set_default_node_attributes(acl);
 
 	if (core_create_device_list_for_node(acl) < 0) {
-		TPG_TFO(tpg)->tpg_release_fabric_acl(tpg, acl);
+		tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
 		return NULL;
 	}
 
 	if (core_set_queue_depth_for_node(tpg, acl) < 0) {
 		core_free_device_list_for_node(acl, tpg);
-		TPG_TFO(tpg)->tpg_release_fabric_acl(tpg, acl);
+		tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
 		return NULL;
 	}
 
@@ -301,10 +306,10 @@ struct se_node_acl *core_tpg_check_initiator_node_acl(
 	tpg->num_node_acls++;
 	spin_unlock_bh(&tpg->acl_node_lock);
 
-	printk("%s_TPG[%u] - Added DYNAMIC ACL with TCQ Depth: %d for %s"
-		" Initiator Node: %s\n", TPG_TFO(tpg)->get_fabric_name(),
-		TPG_TFO(tpg)->tpg_get_tag(tpg), acl->queue_depth,
-		TPG_TFO(tpg)->get_fabric_name(), initiatorname);
+	pr_debug("%s_TPG[%u] - Added DYNAMIC ACL with TCQ Depth: %d for %s"
+		" Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
+		tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
+		tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
 
 	return acl;
 }
@@ -351,12 +356,12 @@ struct se_node_acl *core_tpg_add_initiator_node_acl(
 
 	spin_lock_bh(&tpg->acl_node_lock);
 	acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
-	if ((acl)) {
+	if (acl) {
 		if (acl->dynamic_node_acl) {
 			acl->dynamic_node_acl = 0;
-			printk(KERN_INFO "%s_TPG[%u] - Replacing dynamic ACL"
-				" for %s\n", TPG_TFO(tpg)->get_fabric_name(),
-				TPG_TFO(tpg)->tpg_get_tag(tpg), initiatorname);
+			pr_debug("%s_TPG[%u] - Replacing dynamic ACL"
+				" for %s\n", tpg->se_tpg_tfo->get_fabric_name(),
+				tpg->se_tpg_tfo->tpg_get_tag(tpg), initiatorname);
 			spin_unlock_bh(&tpg->acl_node_lock);
 			/*
 			 * Release the locally allocated struct se_node_acl
@@ -364,22 +369,22 @@ struct se_node_acl *core_tpg_add_initiator_node_acl(
 			 * a pointer to an existing demo mode node ACL.
 			 */
 			if (se_nacl)
-				TPG_TFO(tpg)->tpg_release_fabric_acl(tpg,
+				tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg,
 							se_nacl);
 			goto done;
 		}
 
-		printk(KERN_ERR "ACL entry for %s Initiator"
+		pr_err("ACL entry for %s Initiator"
 			" Node %s already exists for TPG %u, ignoring"
-			" request.\n",  TPG_TFO(tpg)->get_fabric_name(),
-			initiatorname, TPG_TFO(tpg)->tpg_get_tag(tpg));
+			" request.\n",  tpg->se_tpg_tfo->get_fabric_name(),
+			initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
 		spin_unlock_bh(&tpg->acl_node_lock);
 		return ERR_PTR(-EEXIST);
 	}
 	spin_unlock_bh(&tpg->acl_node_lock);
 
-	if (!(se_nacl)) {
-		printk("struct se_node_acl pointer is NULL\n");
+	if (!se_nacl) {
+		pr_err("struct se_node_acl pointer is NULL\n");
 		return ERR_PTR(-EINVAL);
 	}
 	/*
@@ -400,16 +405,16 @@ struct se_node_acl *core_tpg_add_initiator_node_acl(
 	acl->acl_index = scsi_get_new_index(SCSI_AUTH_INTR_INDEX);
 	spin_lock_init(&acl->stats_lock);
 
-	TPG_TFO(tpg)->set_default_node_attributes(acl);
+	tpg->se_tpg_tfo->set_default_node_attributes(acl);
 
 	if (core_create_device_list_for_node(acl) < 0) {
-		TPG_TFO(tpg)->tpg_release_fabric_acl(tpg, acl);
+		tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
 		return ERR_PTR(-ENOMEM);
 	}
 
 	if (core_set_queue_depth_for_node(tpg, acl) < 0) {
 		core_free_device_list_for_node(acl, tpg);
-		TPG_TFO(tpg)->tpg_release_fabric_acl(tpg, acl);
+		tpg->se_tpg_tfo->tpg_release_fabric_acl(tpg, acl);
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -419,10 +424,10 @@ struct se_node_acl *core_tpg_add_initiator_node_acl(
 	spin_unlock_bh(&tpg->acl_node_lock);
 
 done:
-	printk(KERN_INFO "%s_TPG[%hu] - Added ACL with TCQ Depth: %d for %s"
-		" Initiator Node: %s\n", TPG_TFO(tpg)->get_fabric_name(),
-		TPG_TFO(tpg)->tpg_get_tag(tpg), acl->queue_depth,
-		TPG_TFO(tpg)->get_fabric_name(), initiatorname);
+	pr_debug("%s_TPG[%hu] - Added ACL with TCQ Depth: %d for %s"
+		" Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
+		tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
+		tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
 
 	return acl;
 }
@@ -457,7 +462,7 @@ int core_tpg_del_initiator_node_acl(
 		/*
 		 * Determine if the session needs to be closed by our context.
 		 */
-		if (!(TPG_TFO(tpg)->shutdown_session(sess)))
+		if (!tpg->se_tpg_tfo->shutdown_session(sess))
 			continue;
 
 		spin_unlock_bh(&tpg->session_lock);
@@ -465,7 +470,7 @@ int core_tpg_del_initiator_node_acl(
 		 * If the $FABRIC_MOD session for the Initiator Node ACL exists,
 		 * forcefully shutdown the $FABRIC_MOD session/nexus.
 		 */
-		TPG_TFO(tpg)->close_session(sess);
+		tpg->se_tpg_tfo->close_session(sess);
 
 		spin_lock_bh(&tpg->session_lock);
 	}
@@ -475,10 +480,10 @@ int core_tpg_del_initiator_node_acl(
 	core_clear_initiator_node_from_tpg(acl, tpg);
 	core_free_device_list_for_node(acl, tpg);
 
-	printk(KERN_INFO "%s_TPG[%hu] - Deleted ACL with TCQ Depth: %d for %s"
-		" Initiator Node: %s\n", TPG_TFO(tpg)->get_fabric_name(),
-		TPG_TFO(tpg)->tpg_get_tag(tpg), acl->queue_depth,
-		TPG_TFO(tpg)->get_fabric_name(), acl->initiatorname);
+	pr_debug("%s_TPG[%hu] - Deleted ACL with TCQ Depth: %d for %s"
+		" Initiator Node: %s\n", tpg->se_tpg_tfo->get_fabric_name(),
+		tpg->se_tpg_tfo->tpg_get_tag(tpg), acl->queue_depth,
+		tpg->se_tpg_tfo->get_fabric_name(), acl->initiatorname);
 
 	return 0;
 }
@@ -500,11 +505,11 @@ int core_tpg_set_initiator_node_queue_depth(
 
 	spin_lock_bh(&tpg->acl_node_lock);
 	acl = __core_tpg_get_initiator_node_acl(tpg, initiatorname);
-	if (!(acl)) {
-		printk(KERN_ERR "Access Control List entry for %s Initiator"
+	if (!acl) {
+		pr_err("Access Control List entry for %s Initiator"
 			" Node %s does not exists for TPG %hu, ignoring"
-			" request.\n", TPG_TFO(tpg)->get_fabric_name(),
-			initiatorname, TPG_TFO(tpg)->tpg_get_tag(tpg));
+			" request.\n", tpg->se_tpg_tfo->get_fabric_name(),
+			initiatorname, tpg->se_tpg_tfo->tpg_get_tag(tpg));
 		spin_unlock_bh(&tpg->acl_node_lock);
 		return -ENODEV;
 	}
@@ -520,12 +525,12 @@ int core_tpg_set_initiator_node_queue_depth(
 			continue;
 
 		if (!force) {
-			printk(KERN_ERR "Unable to change queue depth for %s"
+			pr_err("Unable to change queue depth for %s"
 				" Initiator Node: %s while session is"
 				" operational.  To forcefully change the queue"
 				" depth and force session reinstatement"
 				" use the \"force=1\" parameter.\n",
-				TPG_TFO(tpg)->get_fabric_name(), initiatorname);
+				tpg->se_tpg_tfo->get_fabric_name(), initiatorname);
 			spin_unlock_bh(&tpg->session_lock);
 
 			spin_lock_bh(&tpg->acl_node_lock);
@@ -537,7 +542,7 @@ int core_tpg_set_initiator_node_queue_depth(
 		/*
 		 * Determine if the session needs to be closed by our context.
 		 */
-		if (!(TPG_TFO(tpg)->shutdown_session(sess)))
+		if (!tpg->se_tpg_tfo->shutdown_session(sess))
 			continue;
 
 		init_sess = sess;
@@ -549,7 +554,7 @@ int core_tpg_set_initiator_node_queue_depth(
 	 * Change the value in the Node's struct se_node_acl, and call
 	 * core_set_queue_depth_for_node() to add the requested queue depth.
 	 *
-	 * Finally call  TPG_TFO(tpg)->close_session() to force session
+	 * Finally call  tpg->se_tpg_tfo->close_session() to force session
 	 * reinstatement to occur if there is an active session for the
 	 * $FABRIC_MOD Initiator Node in question.
 	 */
@@ -561,10 +566,10 @@ int core_tpg_set_initiator_node_queue_depth(
 		 * Force session reinstatement if
 		 * core_set_queue_depth_for_node() failed, because we assume
 		 * the $FABRIC_MOD has already the set session reinstatement
-		 * bit from TPG_TFO(tpg)->shutdown_session() called above.
+		 * bit from tpg->se_tpg_tfo->shutdown_session() called above.
 		 */
 		if (init_sess)
-			TPG_TFO(tpg)->close_session(init_sess);
+			tpg->se_tpg_tfo->close_session(init_sess);
 
 		spin_lock_bh(&tpg->acl_node_lock);
 		if (dynamic_acl)
@@ -578,12 +583,12 @@ int core_tpg_set_initiator_node_queue_depth(
 	 * forcefully shutdown the $FABRIC_MOD session/nexus.
 	 */
 	if (init_sess)
-		TPG_TFO(tpg)->close_session(init_sess);
+		tpg->se_tpg_tfo->close_session(init_sess);
 
-	printk(KERN_INFO "Successfuly changed queue depth to: %d for Initiator"
+	pr_debug("Successfuly changed queue depth to: %d for Initiator"
 		" Node: %s on %s Target Portal Group: %u\n", queue_depth,
-		initiatorname, TPG_TFO(tpg)->get_fabric_name(),
-		TPG_TFO(tpg)->tpg_get_tag(tpg));
+		initiatorname, tpg->se_tpg_tfo->get_fabric_name(),
+		tpg->se_tpg_tfo->tpg_get_tag(tpg));
 
 	spin_lock_bh(&tpg->acl_node_lock);
 	if (dynamic_acl)
@@ -597,7 +602,7 @@ EXPORT_SYMBOL(core_tpg_set_initiator_node_queue_depth);
 static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
 {
 	/* Set in core_dev_setup_virtual_lun0() */
-	struct se_device *dev = se_global->g_lun0_dev;
+	struct se_device *dev = g_lun0_dev;
 	struct se_lun *lun = &se_tpg->tpg_virt_lun0;
 	u32 lun_access = TRANSPORT_LUNFLAGS_READ_ONLY;
 	int ret;
@@ -614,7 +619,7 @@ static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
 
 	ret = core_tpg_post_addlun(se_tpg, lun, lun_access, dev);
 	if (ret < 0)
-		return -1;
+		return ret;
 
 	return 0;
 }
@@ -638,8 +643,8 @@ int core_tpg_register(
 
 	se_tpg->tpg_lun_list = kzalloc((sizeof(struct se_lun) *
 				TRANSPORT_MAX_LUNS_PER_TPG), GFP_KERNEL);
-	if (!(se_tpg->tpg_lun_list)) {
-		printk(KERN_ERR "Unable to allocate struct se_portal_group->"
+	if (!se_tpg->tpg_lun_list) {
+		pr_err("Unable to allocate struct se_portal_group->"
 				"tpg_lun_list\n");
 		return -ENOMEM;
 	}
@@ -663,7 +668,7 @@ int core_tpg_register(
 	se_tpg->se_tpg_wwn = se_wwn;
 	atomic_set(&se_tpg->tpg_pr_ref_count, 0);
 	INIT_LIST_HEAD(&se_tpg->acl_node_list);
-	INIT_LIST_HEAD(&se_tpg->se_tpg_list);
+	INIT_LIST_HEAD(&se_tpg->se_tpg_node);
 	INIT_LIST_HEAD(&se_tpg->tpg_sess_list);
 	spin_lock_init(&se_tpg->acl_node_lock);
 	spin_lock_init(&se_tpg->session_lock);
@@ -676,11 +681,11 @@ int core_tpg_register(
 		}
 	}
 
-	spin_lock_bh(&se_global->se_tpg_lock);
-	list_add_tail(&se_tpg->se_tpg_list, &se_global->g_se_tpg_list);
-	spin_unlock_bh(&se_global->se_tpg_lock);
+	spin_lock_bh(&tpg_lock);
+	list_add_tail(&se_tpg->se_tpg_node, &tpg_list);
+	spin_unlock_bh(&tpg_lock);
 
-	printk(KERN_INFO "TARGET_CORE[%s]: Allocated %s struct se_portal_group for"
+	pr_debug("TARGET_CORE[%s]: Allocated %s struct se_portal_group for"
 		" endpoint: %s, Portal Tag: %u\n", tfo->get_fabric_name(),
 		(se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ?
 		"Normal" : "Discovery", (tfo->tpg_get_wwn(se_tpg) == NULL) ?
@@ -694,16 +699,16 @@ int core_tpg_deregister(struct se_portal_group *se_tpg)
 {
 	struct se_node_acl *nacl, *nacl_tmp;
 
-	printk(KERN_INFO "TARGET_CORE[%s]: Deallocating %s struct se_portal_group"
+	pr_debug("TARGET_CORE[%s]: Deallocating %s struct se_portal_group"
 		" for endpoint: %s Portal Tag %u\n",
 		(se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ?
-		"Normal" : "Discovery", TPG_TFO(se_tpg)->get_fabric_name(),
-		TPG_TFO(se_tpg)->tpg_get_wwn(se_tpg),
-		TPG_TFO(se_tpg)->tpg_get_tag(se_tpg));
+		"Normal" : "Discovery", se_tpg->se_tpg_tfo->get_fabric_name(),
+		se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg),
+		se_tpg->se_tpg_tfo->tpg_get_tag(se_tpg));
 
-	spin_lock_bh(&se_global->se_tpg_lock);
-	list_del(&se_tpg->se_tpg_list);
-	spin_unlock_bh(&se_global->se_tpg_lock);
+	spin_lock_bh(&tpg_lock);
+	list_del(&se_tpg->se_tpg_node);
+	spin_unlock_bh(&tpg_lock);
 
 	while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0)
 		cpu_relax();
@@ -721,7 +726,7 @@ int core_tpg_deregister(struct se_portal_group *se_tpg)
 
 		core_tpg_wait_for_nacl_pr_ref(nacl);
 		core_free_device_list_for_node(nacl, se_tpg);
-		TPG_TFO(se_tpg)->tpg_release_fabric_acl(se_tpg, nacl);
+		se_tpg->se_tpg_tfo->tpg_release_fabric_acl(se_tpg, nacl);
 
 		spin_lock_bh(&se_tpg->acl_node_lock);
 	}
@@ -743,21 +748,21 @@ struct se_lun *core_tpg_pre_addlun(
 	struct se_lun *lun;
 
 	if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
-		printk(KERN_ERR "%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG"
+		pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG"
 			"-1: %u for Target Portal Group: %u\n",
-			TPG_TFO(tpg)->get_fabric_name(),
+			tpg->se_tpg_tfo->get_fabric_name(),
 			unpacked_lun, TRANSPORT_MAX_LUNS_PER_TPG-1,
-			TPG_TFO(tpg)->tpg_get_tag(tpg));
+			tpg->se_tpg_tfo->tpg_get_tag(tpg));
 		return ERR_PTR(-EOVERFLOW);
 	}
 
 	spin_lock(&tpg->tpg_lun_lock);
 	lun = &tpg->tpg_lun_list[unpacked_lun];
 	if (lun->lun_status == TRANSPORT_LUN_STATUS_ACTIVE) {
-		printk(KERN_ERR "TPG Logical Unit Number: %u is already active"
+		pr_err("TPG Logical Unit Number: %u is already active"
 			" on %s Target Portal Group: %u, ignoring request.\n",
-			unpacked_lun, TPG_TFO(tpg)->get_fabric_name(),
-			TPG_TFO(tpg)->tpg_get_tag(tpg));
+			unpacked_lun, tpg->se_tpg_tfo->get_fabric_name(),
+			tpg->se_tpg_tfo->tpg_get_tag(tpg));
 		spin_unlock(&tpg->tpg_lun_lock);
 		return ERR_PTR(-EINVAL);
 	}
@@ -772,8 +777,11 @@ int core_tpg_post_addlun(
 	u32 lun_access,
 	void *lun_ptr)
 {
-	if (core_dev_export(lun_ptr, tpg, lun) < 0)
-		return -1;
+	int ret;
+
+	ret = core_dev_export(lun_ptr, tpg, lun);
+	if (ret < 0)
+		return ret;
 
 	spin_lock(&tpg->tpg_lun_lock);
 	lun->lun_access = lun_access;
@@ -799,21 +807,21 @@ struct se_lun *core_tpg_pre_dellun(
 	struct se_lun *lun;
 
 	if (unpacked_lun > (TRANSPORT_MAX_LUNS_PER_TPG-1)) {
-		printk(KERN_ERR "%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG"
+		pr_err("%s LUN: %u exceeds TRANSPORT_MAX_LUNS_PER_TPG"
 			"-1: %u for Target Portal Group: %u\n",
-			TPG_TFO(tpg)->get_fabric_name(), unpacked_lun,
+			tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
 			TRANSPORT_MAX_LUNS_PER_TPG-1,
-			TPG_TFO(tpg)->tpg_get_tag(tpg));
+			tpg->se_tpg_tfo->tpg_get_tag(tpg));
 		return ERR_PTR(-EOVERFLOW);
 	}
 
 	spin_lock(&tpg->tpg_lun_lock);
 	lun = &tpg->tpg_lun_list[unpacked_lun];
 	if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) {
-		printk(KERN_ERR "%s Logical Unit Number: %u is not active on"
+		pr_err("%s Logical Unit Number: %u is not active on"
 			" Target Portal Group: %u, ignoring request.\n",
-			TPG_TFO(tpg)->get_fabric_name(), unpacked_lun,
-			TPG_TFO(tpg)->tpg_get_tag(tpg));
+			tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
+			tpg->se_tpg_tfo->tpg_get_tag(tpg));
 		spin_unlock(&tpg->tpg_lun_lock);
 		return ERR_PTR(-ENODEV);
 	}

drivers/target/target_core_ua.c

@@ -49,15 +49,15 @@ int core_scsi3_ua_check(
 	struct se_session *sess = cmd->se_sess;
 	struct se_node_acl *nacl;
 
-	if (!(sess))
+	if (!sess)
 		return 0;
 
 	nacl = sess->se_node_acl;
-	if (!(nacl))
+	if (!nacl)
 		return 0;
 
 	deve = &nacl->device_list[cmd->orig_fe_lun];
-	if (!(atomic_read(&deve->ua_count)))
+	if (!atomic_read(&deve->ua_count))
 		return 0;
 	/*
 	 * From sam4r14, section 5.14 Unit attention condition:
@@ -80,10 +80,10 @@ int core_scsi3_ua_check(
 	case REQUEST_SENSE:
 		return 0;
 	default:
-		return -1;
+		return -EINVAL;
 	}
 
-	return -1;
+	return -EINVAL;
 }
 
 int core_scsi3_ua_allocate(
@@ -97,13 +97,13 @@ int core_scsi3_ua_allocate(
 	/*
 	 * PASSTHROUGH OPS
 	 */
-	if (!(nacl))
-		return -1;
+	if (!nacl)
+		return -EINVAL;
 
 	ua = kmem_cache_zalloc(se_ua_cache, GFP_ATOMIC);
-	if (!(ua)) {
-		printk(KERN_ERR "Unable to allocate struct se_ua\n");
-		return -1;
+	if (!ua) {
+		pr_err("Unable to allocate struct se_ua\n");
+		return -ENOMEM;
 	}
 	INIT_LIST_HEAD(&ua->ua_dev_list);
 	INIT_LIST_HEAD(&ua->ua_nacl_list);
@@ -177,9 +177,9 @@ int core_scsi3_ua_allocate(
 	spin_unlock(&deve->ua_lock);
 	spin_unlock_irq(&nacl->device_list_lock);
 
-	printk(KERN_INFO "[%s]: Allocated UNIT ATTENTION, mapped LUN: %u, ASC:"
+	pr_debug("[%s]: Allocated UNIT ATTENTION, mapped LUN: %u, ASC:"
 		" 0x%02x, ASCQ: 0x%02x\n",
-		TPG_TFO(nacl->se_tpg)->get_fabric_name(), unpacked_lun,
+		nacl->se_tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun,
 		asc, ascq);
 
 	atomic_inc(&deve->ua_count);
@@ -208,23 +208,23 @@ void core_scsi3_ua_for_check_condition(
 	u8 *asc,
 	u8 *ascq)
 {
-	struct se_device *dev = SE_DEV(cmd);
+	struct se_device *dev = cmd->se_dev;
 	struct se_dev_entry *deve;
 	struct se_session *sess = cmd->se_sess;
 	struct se_node_acl *nacl;
 	struct se_ua *ua = NULL, *ua_p;
 	int head = 1;
 
-	if (!(sess))
+	if (!sess)
 		return;
 
 	nacl = sess->se_node_acl;
-	if (!(nacl))
+	if (!nacl)
 		return;
 
 	spin_lock_irq(&nacl->device_list_lock);
 	deve = &nacl->device_list[cmd->orig_fe_lun];
-	if (!(atomic_read(&deve->ua_count))) {
+	if (!atomic_read(&deve->ua_count)) {
 		spin_unlock_irq(&nacl->device_list_lock);
 		return;
 	}
@@ -240,7 +240,7 @@ void core_scsi3_ua_for_check_condition(
 		 * highest priority UNIT_ATTENTION and ASC/ASCQ without
 		 * clearing it.
 		 */
-		if (DEV_ATTRIB(dev)->emulate_ua_intlck_ctrl != 0) {
+		if (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl != 0) {
 			*asc = ua->ua_asc;
 			*ascq = ua->ua_ascq;
 			break;
@@ -264,13 +264,13 @@ void core_scsi3_ua_for_check_condition(
 	spin_unlock(&deve->ua_lock);
 	spin_unlock_irq(&nacl->device_list_lock);
 
-	printk(KERN_INFO "[%s]: %s UNIT ATTENTION condition with"
+	pr_debug("[%s]: %s UNIT ATTENTION condition with"
 		" INTLCK_CTRL: %d, mapped LUN: %u, got CDB: 0x%02x"
 		" reported ASC: 0x%02x, ASCQ: 0x%02x\n",
-		TPG_TFO(nacl->se_tpg)->get_fabric_name(),
-		(DEV_ATTRIB(dev)->emulate_ua_intlck_ctrl != 0) ? "Reporting" :
-		"Releasing", DEV_ATTRIB(dev)->emulate_ua_intlck_ctrl,
-		cmd->orig_fe_lun, T_TASK(cmd)->t_task_cdb[0], *asc, *ascq);
+		nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
+		(dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl != 0) ? "Reporting" :
+		"Releasing", dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl,
+		cmd->orig_fe_lun, cmd->t_task_cdb[0], *asc, *ascq);
 }
 
 int core_scsi3_ua_clear_for_request_sense(
@@ -284,18 +284,18 @@ int core_scsi3_ua_clear_for_request_sense(
 	struct se_ua *ua = NULL, *ua_p;
 	int head = 1;
 
-	if (!(sess))
-		return -1;
+	if (!sess)
+		return -EINVAL;
 
 	nacl = sess->se_node_acl;
-	if (!(nacl))
-		return -1;
+	if (!nacl)
+		return -EINVAL;
 
 	spin_lock_irq(&nacl->device_list_lock);
 	deve = &nacl->device_list[cmd->orig_fe_lun];
-	if (!(atomic_read(&deve->ua_count))) {
+	if (!atomic_read(&deve->ua_count)) {
 		spin_unlock_irq(&nacl->device_list_lock);
-		return -1;
+		return -EPERM;
 	}
 	/*
 	 * The highest priority Unit Attentions are placed at the head of the
@@ -323,10 +323,10 @@ int core_scsi3_ua_clear_for_request_sense(
 	spin_unlock(&deve->ua_lock);
 	spin_unlock_irq(&nacl->device_list_lock);
 
-	printk(KERN_INFO "[%s]: Released UNIT ATTENTION condition, mapped"
+	pr_debug("[%s]: Released UNIT ATTENTION condition, mapped"
 		" LUN: %u, got REQUEST_SENSE reported ASC: 0x%02x,"
-		" ASCQ: 0x%02x\n", TPG_TFO(nacl->se_tpg)->get_fabric_name(),
+		" ASCQ: 0x%02x\n", nacl->se_tpg->se_tpg_tfo->get_fabric_name(),
 		cmd->orig_fe_lun, *asc, *ascq);
 
-	return (head) ? -1 : 0;
+	return (head) ? -EPERM : 0;
 }

drivers/target/tcm_fc/Makefile

@@ -1,15 +1,6 @@
-EXTRA_CFLAGS += -I$(srctree)/drivers/target/ \
-		-I$(srctree)/drivers/scsi/ \
-		-I$(srctree)/include/scsi/ \
-		-I$(srctree)/drivers/target/tcm_fc/
-
-tcm_fc-y +=	tfc_cmd.o \
-		tfc_conf.o \
-		tfc_io.o \
-		tfc_sess.o
+tcm_fc-y +=		tfc_cmd.o \
+			tfc_conf.o \
+			tfc_io.o \
+			tfc_sess.o
 
 obj-$(CONFIG_TCM_FC)	+= tcm_fc.o
-
-ifdef CONFIGFS_TCM_FC_DEBUG
-EXTRA_CFLAGS	+= -DTCM_FC_DEBUG
-endif

drivers/target/tcm_fc/tcm_fc.h

@@ -23,30 +23,6 @@
 #define FT_TPG_NAMELEN 32	/* max length of TPG name */
 #define FT_LUN_NAMELEN 32	/* max length of LUN name */
 
-/*
- * Debug options.
- */
-#define FT_DEBUG_CONF	0x01	/* configuration messages */
-#define	FT_DEBUG_SESS	0x02	/* session messages */
-#define	FT_DEBUG_TM	0x04	/* TM operations */
-#define	FT_DEBUG_IO	0x08	/* I/O commands */
-#define	FT_DEBUG_DATA	0x10	/* Data transfer */
-
-extern unsigned int ft_debug_logging;	/* debug options */
-
-#define FT_DEBUG(mask, fmt, args...)					\
-	do {								\
-		if (ft_debug_logging & (mask))				\
-			printk(KERN_INFO "tcm_fc: %s: " fmt,		\
-				__func__, ##args);			\
-	} while (0)
-
-#define	FT_CONF_DBG(fmt, args...)	FT_DEBUG(FT_DEBUG_CONF, fmt, ##args)
-#define	FT_SESS_DBG(fmt, args...)	FT_DEBUG(FT_DEBUG_SESS, fmt, ##args)
-#define	FT_TM_DBG(fmt, args...)		FT_DEBUG(FT_DEBUG_TM, fmt, ##args)
-#define	FT_IO_DBG(fmt, args...)		FT_DEBUG(FT_DEBUG_IO, fmt, ##args)
-#define	FT_DATA_DBG(fmt, args...)	FT_DEBUG(FT_DEBUG_DATA, fmt, ##args)
-
 struct ft_transport_id {
 	__u8	format;
 	__u8	__resvd1[7];
@@ -195,7 +171,6 @@ int ft_write_pending(struct se_cmd *);
 int ft_write_pending_status(struct se_cmd *);
 u32 ft_get_task_tag(struct se_cmd *);
 int ft_get_cmd_state(struct se_cmd *);
-void ft_new_cmd_failure(struct se_cmd *);
 int ft_queue_tm_resp(struct se_cmd *);
 int ft_is_state_remove(struct se_cmd *);
 

drivers/target/tcm_fc/tfc_cmd.c

@@ -59,33 +59,30 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
 	struct fc_exch *ep;
 	struct fc_seq *sp;
 	struct se_cmd *se_cmd;
-	struct se_mem *mem;
-	struct se_transport_task *task;
-
-	if (!(ft_debug_logging & FT_DEBUG_IO))
-		return;
+	struct scatterlist *sg;
+	int count;
 
 	se_cmd = &cmd->se_cmd;
-	printk(KERN_INFO "%s: cmd %p state %d sess %p seq %p se_cmd %p\n",
+	pr_debug("%s: cmd %p state %d sess %p seq %p se_cmd %p\n",
 		caller, cmd, cmd->state, cmd->sess, cmd->seq, se_cmd);
-	printk(KERN_INFO "%s: cmd %p cdb %p\n",
+	pr_debug("%s: cmd %p cdb %p\n",
 		caller, cmd, cmd->cdb);
-	printk(KERN_INFO "%s: cmd %p lun %d\n", caller, cmd, cmd->lun);
-
-	task = T_TASK(se_cmd);
-	printk(KERN_INFO "%s: cmd %p task %p se_num %u buf %p len %u se_cmd_flags <0x%x>\n",
-	       caller, cmd, task, task->t_tasks_se_num,
-	       task->t_task_buf, se_cmd->data_length, se_cmd->se_cmd_flags);
-	if (task->t_mem_list)
-		list_for_each_entry(mem, task->t_mem_list, se_list)
-			printk(KERN_INFO "%s: cmd %p mem %p page %p "
-			       "len 0x%x off 0x%x\n",
-			       caller, cmd, mem,
-			       mem->se_page, mem->se_len, mem->se_off);
+	pr_debug("%s: cmd %p lun %d\n", caller, cmd, cmd->lun);
+
+	pr_debug("%s: cmd %p data_nents %u len %u se_cmd_flags <0x%x>\n",
+		caller, cmd, se_cmd->t_data_nents,
+	       se_cmd->data_length, se_cmd->se_cmd_flags);
+
+	for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, count)
+		pr_debug("%s: cmd %p sg %p page %p "
+			"len 0x%x off 0x%x\n",
+			caller, cmd, sg,
+			sg_page(sg), sg->length, sg->offset);
+
 	sp = cmd->seq;
 	if (sp) {
 		ep = fc_seq_exch(sp);
-		printk(KERN_INFO "%s: cmd %p sid %x did %x "
+		pr_debug("%s: cmd %p sid %x did %x "
 			"ox_id %x rx_id %x seq_id %x e_stat %x\n",
 			caller, cmd, ep->sid, ep->did, ep->oxid, ep->rxid,
 			sp->id, ep->esb_stat);
@@ -96,15 +93,17 @@ void ft_dump_cmd(struct ft_cmd *cmd, const char *caller)
 
 static void ft_queue_cmd(struct ft_sess *sess, struct ft_cmd *cmd)
 {
-	struct se_queue_obj *qobj;
+	struct ft_tpg *tpg = sess->tport->tpg;
+	struct se_queue_obj *qobj = &tpg->qobj;
 	unsigned long flags;
 
 	qobj = &sess->tport->tpg->qobj;
 	spin_lock_irqsave(&qobj->cmd_queue_lock, flags);
 	list_add_tail(&cmd->se_req.qr_list, &qobj->qobj_list);
-	spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
 	atomic_inc(&qobj->queue_cnt);
-	wake_up_interruptible(&qobj->thread_wq);
+	spin_unlock_irqrestore(&qobj->cmd_queue_lock, flags);
+
+	wake_up_process(tpg->thread);
 }
 
 static struct ft_cmd *ft_dequeue_cmd(struct se_queue_obj *qobj)
@@ -149,7 +148,7 @@ void ft_release_cmd(struct se_cmd *se_cmd)
 
 void ft_check_stop_free(struct se_cmd *se_cmd)
 {
-	transport_generic_free_cmd(se_cmd, 0, 1, 0);
+	transport_generic_free_cmd(se_cmd, 0, 0);
 }
 
 /*
@@ -256,15 +255,14 @@ int ft_write_pending(struct se_cmd *se_cmd)
 		    (fh->fh_r_ctl == FC_RCTL_DD_DATA_DESC)) {
 			if (se_cmd->se_cmd_flags & SCF_SCSI_DATA_SG_IO_CDB) {
 				/*
-				 * Map se_mem list to scatterlist, so that
-				 * DDP can be setup. DDP setup function require
-				 * scatterlist. se_mem_list is internal to
-				 * TCM/LIO target
+				 * cmd may have been broken up into multiple
+				 * tasks. Link their sgs together so we can
+				 * operate on them all at once.
 				 */
 				transport_do_task_sg_chain(se_cmd);
-				cmd->sg = T_TASK(se_cmd)->t_tasks_sg_chained;
+				cmd->sg = se_cmd->t_tasks_sg_chained;
 				cmd->sg_cnt =
-					T_TASK(se_cmd)->t_tasks_sg_chained_no;
+					se_cmd->t_tasks_sg_chained_no;
 			}
 			if (cmd->sg && lport->tt.ddp_setup(lport, ep->xid,
 						    cmd->sg, cmd->sg_cnt))
@@ -294,12 +292,6 @@ int ft_is_state_remove(struct se_cmd *se_cmd)
 	return 0;	/* XXX TBD */
 }
 
-void ft_new_cmd_failure(struct se_cmd *se_cmd)
-{
-	/* XXX TBD */
-	printk(KERN_INFO "%s: se_cmd %p\n", __func__, se_cmd);
-}
-
 /*
  * FC sequence response handler for follow-on sequences (data) and aborts.
  */
@@ -312,7 +304,7 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg)
 		/* XXX need to find cmd if queued */
 		cmd->se_cmd.t_state = TRANSPORT_REMOVE;
 		cmd->seq = NULL;
-		transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
+		transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
 		return;
 	}
 
@@ -326,10 +318,10 @@ static void ft_recv_seq(struct fc_seq *sp, struct fc_frame *fp, void *arg)
 	case FC_RCTL_DD_SOL_CTL:	/* transfer ready */
 	case FC_RCTL_DD_DATA_DESC:	/* transfer ready */
 	default:
-		printk(KERN_INFO "%s: unhandled frame r_ctl %x\n",
+		pr_debug("%s: unhandled frame r_ctl %x\n",
 		       __func__, fh->fh_r_ctl);
 		fc_frame_free(fp);
-		transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
+		transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
 		break;
 	}
 }
@@ -351,7 +343,7 @@ static void ft_send_resp_status(struct fc_lport *lport,
 	struct fcp_resp_rsp_info *info;
 
 	fh = fc_frame_header_get(rx_fp);
-	FT_IO_DBG("FCP error response: did %x oxid %x status %x code %x\n",
+	pr_debug("FCP error response: did %x oxid %x status %x code %x\n",
 		  ntoh24(fh->fh_s_id), ntohs(fh->fh_ox_id), status, code);
 	len = sizeof(*fcp);
 	if (status == SAM_STAT_GOOD)
@@ -421,15 +413,15 @@ static void ft_send_tm(struct ft_cmd *cmd)
 		 * FCP4r01 indicates having a combination of
 		 * tm_flags set is invalid.
 		 */
-		FT_TM_DBG("invalid FCP tm_flags %x\n", fcp->fc_tm_flags);
+		pr_debug("invalid FCP tm_flags %x\n", fcp->fc_tm_flags);
 		ft_send_resp_code(cmd, FCP_CMND_FIELDS_INVALID);
 		return;
 	}
 
-	FT_TM_DBG("alloc tm cmd fn %d\n", tm_func);
+	pr_debug("alloc tm cmd fn %d\n", tm_func);
 	tmr = core_tmr_alloc_req(&cmd->se_cmd, cmd, tm_func);
 	if (!tmr) {
-		FT_TM_DBG("alloc failed\n");
+		pr_debug("alloc failed\n");
 		ft_send_resp_code(cmd, FCP_TMF_FAILED);
 		return;
 	}
@@ -438,20 +430,20 @@ static void ft_send_tm(struct ft_cmd *cmd)
 	switch (fcp->fc_tm_flags) {
 	case FCP_TMF_LUN_RESET:
 		cmd->lun = scsilun_to_int((struct scsi_lun *)fcp->fc_lun);
-		if (transport_get_lun_for_tmr(&cmd->se_cmd, cmd->lun) < 0) {
+		if (transport_lookup_tmr_lun(&cmd->se_cmd, cmd->lun) < 0) {
 			/*
 			 * Make sure to clean up newly allocated TMR request
 			 * since "unable to  handle TMR request because failed
 			 * to get to LUN"
 			 */
-			FT_TM_DBG("Failed to get LUN for TMR func %d, "
+			pr_debug("Failed to get LUN for TMR func %d, "
 				  "se_cmd %p, unpacked_lun %d\n",
 				  tm_func, &cmd->se_cmd, cmd->lun);
 			ft_dump_cmd(cmd, __func__);
 			sess = cmd->sess;
 			transport_send_check_condition_and_sense(&cmd->se_cmd,
 				cmd->se_cmd.scsi_sense_reason, 0);
-			transport_generic_free_cmd(&cmd->se_cmd, 0, 1, 0);
+			transport_generic_free_cmd(&cmd->se_cmd, 0, 0);
 			ft_sess_put(sess);
 			return;
 		}
@@ -495,7 +487,7 @@ int ft_queue_tm_resp(struct se_cmd *se_cmd)
 		code = FCP_TMF_FAILED;
 		break;
 	}
-	FT_TM_DBG("tmr fn %d resp %d fcp code %d\n",
+	pr_debug("tmr fn %d resp %d fcp code %d\n",
 		  tmr->function, tmr->response, code);
 	ft_send_resp_code(cmd, code);
 	return 0;
@@ -523,7 +515,7 @@ static void ft_recv_cmd(struct ft_sess *sess, struct fc_frame *fp)
 	return;
 
 busy:
-	FT_IO_DBG("cmd or seq allocation failure - sending BUSY\n");
+	pr_debug("cmd or seq allocation failure - sending BUSY\n");
 	ft_send_resp_status(lport, fp, SAM_STAT_BUSY, 0);
 	fc_frame_free(fp);
 	ft_sess_put(sess);		/* undo get from lookup */
@@ -548,7 +540,7 @@ void ft_recv_req(struct ft_sess *sess, struct fc_frame *fp)
 	case FC_RCTL_DD_DATA_DESC:	/* transfer ready */
 	case FC_RCTL_ELS4_REQ:		/* SRR, perhaps */
 	default:
-		printk(KERN_INFO "%s: unhandled frame r_ctl %x\n",
+		pr_debug("%s: unhandled frame r_ctl %x\n",
 		       __func__, fh->fh_r_ctl);
 		fc_frame_free(fp);
 		ft_sess_put(sess);	/* undo get from lookup */
@@ -637,7 +629,7 @@ static void ft_send_cmd(struct ft_cmd *cmd)
 	fc_seq_exch(cmd->seq)->lp->tt.seq_set_resp(cmd->seq, ft_recv_seq, cmd);
 
 	cmd->lun = scsilun_to_int((struct scsi_lun *)fcp->fc_lun);
-	ret = transport_get_lun_for_cmd(&cmd->se_cmd, NULL, cmd->lun);
+	ret = transport_lookup_cmd_lun(&cmd->se_cmd, cmd->lun);
 	if (ret < 0) {
 		ft_dump_cmd(cmd, __func__);
 		transport_send_check_condition_and_sense(&cmd->se_cmd,
@@ -647,22 +639,22 @@ static void ft_send_cmd(struct ft_cmd *cmd)
 
 	ret = transport_generic_allocate_tasks(se_cmd, cmd->cdb);
 
-	FT_IO_DBG("r_ctl %x alloc task ret %d\n", fh->fh_r_ctl, ret);
+	pr_debug("r_ctl %x alloc task ret %d\n", fh->fh_r_ctl, ret);
 	ft_dump_cmd(cmd, __func__);
 
-	if (ret == -1) {
+	if (ret == -ENOMEM) {
 		transport_send_check_condition_and_sense(se_cmd,
 				TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0);
-		transport_generic_free_cmd(se_cmd, 0, 1, 0);
+		transport_generic_free_cmd(se_cmd, 0, 0);
 		return;
 	}
-	if (ret == -2) {
+	if (ret == -EINVAL) {
 		if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT)
 			ft_queue_status(se_cmd);
 		else
 			transport_send_check_condition_and_sense(se_cmd,
 					se_cmd->scsi_sense_reason, 0);
-		transport_generic_free_cmd(se_cmd, 0, 1, 0);
+		transport_generic_free_cmd(se_cmd, 0, 0);
 		return;
 	}
 	transport_generic_handle_cdb(se_cmd);
@@ -670,7 +662,6 @@ static void ft_send_cmd(struct ft_cmd *cmd)
 
 err:
 	ft_send_resp_code(cmd, FCP_CMND_FIELDS_INVALID);
-	return;
 }
 
 /*
@@ -678,7 +669,7 @@ err:
  */
 static void ft_exec_req(struct ft_cmd *cmd)
 {
-	FT_IO_DBG("cmd state %x\n", cmd->state);
+	pr_debug("cmd state %x\n", cmd->state);
 	switch (cmd->state) {
 	case FC_CMD_ST_NEW:
 		ft_send_cmd(cmd);
@@ -697,15 +688,12 @@ int ft_thread(void *arg)
 	struct ft_tpg *tpg = arg;
 	struct se_queue_obj *qobj = &tpg->qobj;
 	struct ft_cmd *cmd;
-	int ret;
-
-	set_user_nice(current, -20);
 
 	while (!kthread_should_stop()) {
-		ret = wait_event_interruptible(qobj->thread_wq,
-			atomic_read(&qobj->queue_cnt) || kthread_should_stop());
-		if (ret < 0 || kthread_should_stop())
+		schedule_timeout_interruptible(MAX_SCHEDULE_TIMEOUT);
+		if (kthread_should_stop())
 			goto out;
+
 		cmd = ft_dequeue_cmd(qobj);
 		if (cmd)
 			ft_exec_req(cmd);

drivers/target/tcm_fc/tfc_conf.c

@@ -106,7 +106,7 @@ static ssize_t ft_parse_wwn(const char *name, u64 *wwn, int strict)
 	}
 	err = 4;
 fail:
-	FT_CONF_DBG("err %u len %zu pos %u byte %u\n",
+	pr_debug("err %u len %zu pos %u byte %u\n",
 		    err, cp - name, pos, byte);
 	return -1;
 }
@@ -216,14 +216,14 @@ static struct se_node_acl *ft_add_acl(
 	u64 wwpn;
 	u32 q_depth;
 
-	FT_CONF_DBG("add acl %s\n", name);
+	pr_debug("add acl %s\n", name);
 	tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
 
 	if (ft_parse_wwn(name, &wwpn, 1) < 0)
 		return ERR_PTR(-EINVAL);
 
 	acl = kzalloc(sizeof(struct ft_node_acl), GFP_KERNEL);
-	if (!(acl))
+	if (!acl)
 		return ERR_PTR(-ENOMEM);
 	acl->node_auth.port_name = wwpn;
 
@@ -239,11 +239,11 @@ static void ft_del_acl(struct se_node_acl *se_acl)
 	struct ft_node_acl *acl = container_of(se_acl,
 				struct ft_node_acl, se_node_acl);
 
-	FT_CONF_DBG("del acl %s\n",
+	pr_debug("del acl %s\n",
 		config_item_name(&se_acl->acl_group.cg_item));
 
 	tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
-	FT_CONF_DBG("del acl %p se_acl %p tpg %p se_tpg %p\n",
+	pr_debug("del acl %p se_acl %p tpg %p se_tpg %p\n",
 		    acl, se_acl, tpg, &tpg->se_tpg);
 
 	core_tpg_del_initiator_node_acl(&tpg->se_tpg, se_acl, 1);
@@ -260,11 +260,11 @@ struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata)
 	spin_lock_bh(&se_tpg->acl_node_lock);
 	list_for_each_entry(se_acl, &se_tpg->acl_node_list, acl_list) {
 		acl = container_of(se_acl, struct ft_node_acl, se_node_acl);
-		FT_CONF_DBG("acl %p port_name %llx\n",
+		pr_debug("acl %p port_name %llx\n",
 			acl, (unsigned long long)acl->node_auth.port_name);
 		if (acl->node_auth.port_name == rdata->ids.port_name ||
 		    acl->node_auth.node_name == rdata->ids.node_name) {
-			FT_CONF_DBG("acl %p port_name %llx matched\n", acl,
+			pr_debug("acl %p port_name %llx matched\n", acl,
 				    (unsigned long long)rdata->ids.port_name);
 			found = acl;
 			/* XXX need to hold onto ACL */
@@ -280,11 +280,11 @@ struct se_node_acl *ft_tpg_alloc_fabric_acl(struct se_portal_group *se_tpg)
 	struct ft_node_acl *acl;
 
 	acl = kzalloc(sizeof(*acl), GFP_KERNEL);
-	if (!(acl)) {
-		printk(KERN_ERR "Unable to allocate struct ft_node_acl\n");
+	if (!acl) {
+		pr_err("Unable to allocate struct ft_node_acl\n");
 		return NULL;
 	}
-	FT_CONF_DBG("acl %p\n", acl);
+	pr_debug("acl %p\n", acl);
 	return &acl->se_node_acl;
 }
 
@@ -294,7 +294,7 @@ static void ft_tpg_release_fabric_acl(struct se_portal_group *se_tpg,
 	struct ft_node_acl *acl = container_of(se_acl,
 				struct ft_node_acl, se_node_acl);
 
-	FT_CONF_DBG(KERN_INFO "acl %p\n", acl);
+	pr_debug("acl %p\n", acl);
 	kfree(acl);
 }
 
@@ -311,7 +311,7 @@ static struct se_portal_group *ft_add_tpg(
 	unsigned long index;
 	int ret;
 
-	FT_CONF_DBG("tcm_fc: add tpg %s\n", name);
+	pr_debug("tcm_fc: add tpg %s\n", name);
 
 	/*
 	 * Name must be "tpgt_" followed by the index.
@@ -331,7 +331,7 @@ static struct se_portal_group *ft_add_tpg(
 	transport_init_queue_obj(&tpg->qobj);
 
 	ret = core_tpg_register(&ft_configfs->tf_ops, wwn, &tpg->se_tpg,
-				(void *)tpg, TRANSPORT_TPG_TYPE_NORMAL);
+				tpg, TRANSPORT_TPG_TYPE_NORMAL);
 	if (ret < 0) {
 		kfree(tpg);
 		return NULL;
@@ -354,7 +354,7 @@ static void ft_del_tpg(struct se_portal_group *se_tpg)
 {
 	struct ft_tpg *tpg = container_of(se_tpg, struct ft_tpg, se_tpg);
 
-	FT_CONF_DBG("del tpg %s\n",
+	pr_debug("del tpg %s\n",
 		    config_item_name(&tpg->se_tpg.tpg_group.cg_item));
 
 	kthread_stop(tpg->thread);
@@ -412,7 +412,7 @@ static struct se_wwn *ft_add_lport(
 	struct ft_lport_acl *old_lacl;
 	u64 wwpn;
 
-	FT_CONF_DBG("add lport %s\n", name);
+	pr_debug("add lport %s\n", name);
 	if (ft_parse_wwn(name, &wwpn, 1) < 0)
 		return NULL;
 	lacl = kzalloc(sizeof(*lacl), GFP_KERNEL);
@@ -441,7 +441,7 @@ static void ft_del_lport(struct se_wwn *wwn)
 	struct ft_lport_acl *lacl = container_of(wwn,
 				struct ft_lport_acl, fc_lport_wwn);
 
-	FT_CONF_DBG("del lport %s\n",
+	pr_debug("del lport %s\n",
 			config_item_name(&wwn->wwn_group.cg_item));
 	mutex_lock(&ft_lport_lock);
 	list_del(&lacl->list);
@@ -536,8 +536,7 @@ static struct target_core_fabric_ops ft_fabric_ops = {
 	.tpg_release_fabric_acl =	ft_tpg_release_fabric_acl,
 	.tpg_get_inst_index =		ft_tpg_get_inst_index,
 	.check_stop_free =		ft_check_stop_free,
-	.release_cmd_to_pool =		ft_release_cmd,
-	.release_cmd_direct =		ft_release_cmd,
+	.release_cmd =			ft_release_cmd,
 	.shutdown_session =		ft_sess_shutdown,
 	.close_session =		ft_sess_close,
 	.stop_session =			ft_sess_stop,
@@ -550,7 +549,6 @@ static struct target_core_fabric_ops ft_fabric_ops = {
 	.set_default_node_attributes =	ft_set_default_node_attr,
 	.get_task_tag =			ft_get_task_tag,
 	.get_cmd_state =		ft_get_cmd_state,
-	.new_cmd_failure =		ft_new_cmd_failure,
 	.queue_data_in =		ft_queue_data_in,
 	.queue_status =			ft_queue_status,
 	.queue_tm_rsp =			ft_queue_tm_resp,
@@ -582,10 +580,10 @@ int ft_register_configfs(void)
 	 * Register the top level struct config_item_type with TCM core
 	 */
 	fabric = target_fabric_configfs_init(THIS_MODULE, "fc");
-	if (!fabric) {
-		printk(KERN_INFO "%s: target_fabric_configfs_init() failed!\n",
+	if (IS_ERR(fabric)) {
+		pr_err("%s: target_fabric_configfs_init() failed!\n",
 		       __func__);
-		return -1;
+		return PTR_ERR(fabric);
 	}
 	fabric->tf_ops = ft_fabric_ops;
 
@@ -610,11 +608,8 @@ int ft_register_configfs(void)
 	 */
 	ret = target_fabric_configfs_register(fabric);
 	if (ret < 0) {
-		FT_CONF_DBG("target_fabric_configfs_register() for"
+		pr_debug("target_fabric_configfs_register() for"
 			    " FC Target failed!\n");
-		printk(KERN_INFO
-		       "%s: target_fabric_configfs_register() failed!\n",
-		       __func__);
 		target_fabric_configfs_free(fabric);
 		return -1;
 	}

drivers/target/tcm_fc/tfc_io.c

@@ -39,6 +39,7 @@
 #include <linux/configfs.h>
 #include <linux/ctype.h>
 #include <linux/hash.h>
+#include <linux/ratelimit.h>
 #include <asm/unaligned.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
@@ -65,21 +66,20 @@
 int ft_queue_data_in(struct se_cmd *se_cmd)
 {
 	struct ft_cmd *cmd = container_of(se_cmd, struct ft_cmd, se_cmd);
-	struct se_transport_task *task;
 	struct fc_frame *fp = NULL;
 	struct fc_exch *ep;
 	struct fc_lport *lport;
-	struct se_mem *mem;
+	struct scatterlist *sg = NULL;
 	size_t remaining;
 	u32 f_ctl = FC_FC_EX_CTX | FC_FC_REL_OFF;
-	u32 mem_off;
+	u32 mem_off = 0;
 	u32 fh_off = 0;
 	u32 frame_off = 0;
 	size_t frame_len = 0;
-	size_t mem_len;
+	size_t mem_len = 0;
 	size_t tlen;
 	size_t off_in_page;
-	struct page *page;
+	struct page *page = NULL;
 	int use_sg;
 	int error;
 	void *page_addr;
@@ -90,24 +90,17 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 	lport = ep->lp;
 	cmd->seq = lport->tt.seq_start_next(cmd->seq);
 
-	task = T_TASK(se_cmd);
-	BUG_ON(!task);
 	remaining = se_cmd->data_length;
 
 	/*
-	 * Setup to use first mem list entry if any.
+	 * Setup to use first mem list entry, unless no data.
 	 */
-	if (task->t_tasks_se_num) {
-		mem = list_first_entry(task->t_mem_list,
-			 struct se_mem, se_list);
-		mem_len = mem->se_len;
-		mem_off = mem->se_off;
-		page = mem->se_page;
-	} else {
-		mem = NULL;
-		mem_len = remaining;
-		mem_off = 0;
-		page = NULL;
+	BUG_ON(remaining && !se_cmd->t_data_sg);
+	if (remaining) {
+		sg = se_cmd->t_data_sg;
+		mem_len = sg->length;
+		mem_off = sg->offset;
+		page = sg_page(sg);
 	}
 
 	/* no scatter/gather in skb for odd word length due to fc_seq_send() */
@@ -115,12 +108,10 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 
 	while (remaining) {
 		if (!mem_len) {
-			BUG_ON(!mem);
-			mem = list_entry(mem->se_list.next,
-				struct se_mem, se_list);
-			mem_len = min((size_t)mem->se_len, remaining);
-			mem_off = mem->se_off;
-			page = mem->se_page;
+			sg = sg_next(sg);
+			mem_len = min((size_t)sg->length, remaining);
+			mem_off = sg->offset;
+			page = sg_page(sg);
 		}
 		if (!frame_len) {
 			/*
@@ -148,18 +139,7 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 		tlen = min(mem_len, frame_len);
 
 		if (use_sg) {
-			if (!mem) {
-				BUG_ON(!task->t_task_buf);
-				page_addr = task->t_task_buf + mem_off;
-				/*
-				 * In this case, offset is 'offset_in_page' of
-				 * (t_task_buf + mem_off) instead of 'mem_off'.
-				 */
-				off_in_page = offset_in_page(page_addr);
-				page = virt_to_page(page_addr);
-				tlen = min(tlen, PAGE_SIZE - off_in_page);
-			} else
-				off_in_page = mem_off;
+			off_in_page = mem_off;
 			BUG_ON(!page);
 			get_page(page);
 			skb_fill_page_desc(fp_skb(fp),
@@ -169,7 +149,7 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 			fp_skb(fp)->data_len += tlen;
 			fp_skb(fp)->truesize +=
 					PAGE_SIZE << compound_order(page);
-		} else if (mem) {
+		} else {
 			BUG_ON(!page);
 			from = kmap_atomic(page + (mem_off >> PAGE_SHIFT),
 					   KM_SOFTIRQ0);
@@ -180,10 +160,6 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 			memcpy(to, from, tlen);
 			kunmap_atomic(page_addr, KM_SOFTIRQ0);
 			to += tlen;
-		} else {
-			from = task->t_task_buf + mem_off;
-			memcpy(to, from, tlen);
-			to += tlen;
 		}
 
 		mem_off += tlen;
@@ -201,8 +177,7 @@ int ft_queue_data_in(struct se_cmd *se_cmd)
 		error = lport->tt.seq_send(lport, cmd->seq, fp);
 		if (error) {
 			/* XXX For now, initiator will retry */
-			if (printk_ratelimit())
-				printk(KERN_ERR "%s: Failed to send frame %p, "
+			pr_err_ratelimited("%s: Failed to send frame %p, "
 						"xid <0x%x>, remaining %zu, "
 						"lso_max <0x%x>\n",
 						__func__, fp, ep->xid,
@@ -221,24 +196,20 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
 	struct fc_seq *seq = cmd->seq;
 	struct fc_exch *ep;
 	struct fc_lport *lport;
-	struct se_transport_task *task;
 	struct fc_frame_header *fh;
-	struct se_mem *mem;
-	u32 mem_off;
+	struct scatterlist *sg = NULL;
+	u32 mem_off = 0;
 	u32 rel_off;
 	size_t frame_len;
-	size_t mem_len;
+	size_t mem_len = 0;
 	size_t tlen;
-	struct page *page;
+	struct page *page = NULL;
 	void *page_addr;
 	void *from;
 	void *to;
 	u32 f_ctl;
 	void *buf;
 
-	task = T_TASK(se_cmd);
-	BUG_ON(!task);
-
 	fh = fc_frame_header_get(fp);
 	if (!(ntoh24(fh->fh_f_ctl) & FC_FC_REL_OFF))
 		goto drop;
@@ -251,7 +222,7 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
 	 */
 	buf = fc_frame_payload_get(fp, 1);
 	if (cmd->was_ddp_setup && buf) {
-		printk(KERN_INFO "%s: When DDP was setup, not expected to"
+		pr_debug("%s: When DDP was setup, not expected to"
 				 "receive frame with payload, Payload shall be"
 				 "copied directly to buffer instead of coming "
 				 "via. legacy receive queues\n", __func__);
@@ -289,7 +260,7 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
 			 * this point, but just in case if required in future
 			 * for debugging or any other purpose
 			 */
-			printk(KERN_ERR "%s: Received frame with TSI bit not"
+			pr_err("%s: Received frame with TSI bit not"
 					" being SET, dropping the frame, "
 					"cmd->sg <%p>, cmd->sg_cnt <0x%x>\n",
 					__func__, cmd->sg, cmd->sg_cnt);
@@ -312,29 +283,22 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
 		frame_len = se_cmd->data_length - rel_off;
 
 	/*
-	 * Setup to use first mem list entry if any.
+	 * Setup to use first mem list entry, unless no data.
 	 */
-	if (task->t_tasks_se_num) {
-		mem = list_first_entry(task->t_mem_list,
-				       struct se_mem, se_list);
-		mem_len = mem->se_len;
-		mem_off = mem->se_off;
-		page = mem->se_page;
-	} else {
-		mem = NULL;
-		page = NULL;
-		mem_off = 0;
-		mem_len = frame_len;
+	BUG_ON(frame_len && !se_cmd->t_data_sg);
+	if (frame_len) {
+		sg = se_cmd->t_data_sg;
+		mem_len = sg->length;
+		mem_off = sg->offset;
+		page = sg_page(sg);
 	}
 
 	while (frame_len) {
 		if (!mem_len) {
-			BUG_ON(!mem);
-			mem = list_entry(mem->se_list.next,
-					 struct se_mem, se_list);
-			mem_len = mem->se_len;
-			mem_off = mem->se_off;
-			page = mem->se_page;
+			sg = sg_next(sg);
+			mem_len = sg->length;
+			mem_off = sg->offset;
+			page = sg_page(sg);
 		}
 		if (rel_off >= mem_len) {
 			rel_off -= mem_len;
@@ -347,19 +311,15 @@ void ft_recv_write_data(struct ft_cmd *cmd, struct fc_frame *fp)
 
 		tlen = min(mem_len, frame_len);
 
-		if (mem) {
-			to = kmap_atomic(page + (mem_off >> PAGE_SHIFT),
-					 KM_SOFTIRQ0);
-			page_addr = to;
-			to += mem_off & ~PAGE_MASK;
-			tlen = min(tlen, (size_t)(PAGE_SIZE -
-						(mem_off & ~PAGE_MASK)));
-			memcpy(to, from, tlen);
-			kunmap_atomic(page_addr, KM_SOFTIRQ0);
-		} else {
-			to = task->t_task_buf + mem_off;
-			memcpy(to, from, tlen);
-		}
+		to = kmap_atomic(page + (mem_off >> PAGE_SHIFT),
+				 KM_SOFTIRQ0);
+		page_addr = to;
+		to += mem_off & ~PAGE_MASK;
+		tlen = min(tlen, (size_t)(PAGE_SIZE -
+					  (mem_off & ~PAGE_MASK)));
+		memcpy(to, from, tlen);
+		kunmap_atomic(page_addr, KM_SOFTIRQ0);
+
 		from += tlen;
 		frame_len -= tlen;
 		mem_off += tlen;

drivers/target/tcm_fc/tfc_sess.c

@@ -198,13 +198,13 @@ static struct ft_sess *ft_sess_get(struct fc_lport *lport, u32 port_id)
 		if (sess->port_id == port_id) {
 			kref_get(&sess->kref);
 			rcu_read_unlock();
-			FT_SESS_DBG("port_id %x found %p\n", port_id, sess);
+			pr_debug("port_id %x found %p\n", port_id, sess);
 			return sess;
 		}
 	}
 out:
 	rcu_read_unlock();
-	FT_SESS_DBG("port_id %x not found\n", port_id);
+	pr_debug("port_id %x not found\n", port_id);
 	return NULL;
 }
 
@@ -240,7 +240,7 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id,
 	hlist_add_head_rcu(&sess->hash, head);
 	tport->sess_count++;
 
-	FT_SESS_DBG("port_id %x sess %p\n", port_id, sess);
+	pr_debug("port_id %x sess %p\n", port_id, sess);
 
 	transport_register_session(&tport->tpg->se_tpg, &acl->se_node_acl,
 				   sess->se_sess, sess);
@@ -314,7 +314,7 @@ int ft_sess_shutdown(struct se_session *se_sess)
 {
 	struct ft_sess *sess = se_sess->fabric_sess_ptr;
 
-	FT_SESS_DBG("port_id %x\n", sess->port_id);
+	pr_debug("port_id %x\n", sess->port_id);
 	return 1;
 }
 
@@ -335,7 +335,7 @@ void ft_sess_close(struct se_session *se_sess)
 		mutex_unlock(&ft_lport_lock);
 		return;
 	}
-	FT_SESS_DBG("port_id %x\n", port_id);
+	pr_debug("port_id %x\n", port_id);
 	ft_sess_unhash(sess);
 	mutex_unlock(&ft_lport_lock);
 	transport_deregister_session_configfs(se_sess);
@@ -348,7 +348,7 @@ void ft_sess_stop(struct se_session *se_sess, int sess_sleep, int conn_sleep)
 {
 	struct ft_sess *sess = se_sess->fabric_sess_ptr;
 
-	FT_SESS_DBG("port_id %x\n", sess->port_id);
+	pr_debug("port_id %x\n", sess->port_id);
 }
 
 int ft_sess_logged_in(struct se_session *se_sess)
@@ -458,7 +458,7 @@ static int ft_prli(struct fc_rport_priv *rdata, u32 spp_len,
 	mutex_lock(&ft_lport_lock);
 	ret = ft_prli_locked(rdata, spp_len, rspp, spp);
 	mutex_unlock(&ft_lport_lock);
-	FT_SESS_DBG("port_id %x flags %x ret %x\n",
+	pr_debug("port_id %x flags %x ret %x\n",
 	       rdata->ids.port_id, rspp ? rspp->spp_flags : 0, ret);
 	return ret;
 }
@@ -518,11 +518,11 @@ static void ft_recv(struct fc_lport *lport, struct fc_frame *fp)
 	struct ft_sess *sess;
 	u32 sid = fc_frame_sid(fp);
 
-	FT_SESS_DBG("sid %x\n", sid);
+	pr_debug("sid %x\n", sid);
 
 	sess = ft_sess_get(lport, sid);
 	if (!sess) {
-		FT_SESS_DBG("sid %x sess lookup failed\n", sid);
+		pr_debug("sid %x sess lookup failed\n", sid);
 		/* TBD XXX - if FCP_CMND, send PRLO */
 		fc_frame_free(fp);
 		return;

include/target/target_core_base.h

@@ -9,12 +9,13 @@
 #include <net/sock.h>
 #include <net/tcp.h>
 
-#define TARGET_CORE_MOD_VERSION		"v4.0.0-rc7-ml"
+#define TARGET_CORE_MOD_VERSION		"v4.1.0-rc1-ml"
 #define SHUTDOWN_SIGS	(sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT))
 
 /* Used by transport_generic_allocate_iovecs() */
 #define TRANSPORT_IOV_DATA_BUFFER		5
 /* Maximum Number of LUNs per Target Portal Group */
+/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
 #define TRANSPORT_MAX_LUNS_PER_TPG		256
 /*
  * By default we use 32-byte CDBs in TCM Core and subsystem plugin code.
@@ -99,6 +100,7 @@ enum transport_state_table {
 	TRANSPORT_FREE		= 15,
 	TRANSPORT_NEW_CMD_MAP	= 16,
 	TRANSPORT_FREE_CMD_INTR = 17,
+	TRANSPORT_COMPLETE_QF_WP = 18,
 };
 
 /* Used for struct se_cmd->se_cmd_flags */
@@ -108,27 +110,22 @@ enum se_cmd_flags_table {
 	SCF_EMULATED_TASK_SENSE		= 0x00000004,
 	SCF_SCSI_DATA_SG_IO_CDB		= 0x00000008,
 	SCF_SCSI_CONTROL_SG_IO_CDB	= 0x00000010,
-	SCF_SCSI_CONTROL_NONSG_IO_CDB	= 0x00000020,
 	SCF_SCSI_NON_DATA_CDB		= 0x00000040,
 	SCF_SCSI_CDB_EXCEPTION		= 0x00000080,
 	SCF_SCSI_RESERVATION_CONFLICT	= 0x00000100,
-	SCF_CMD_PASSTHROUGH_NOALLOC	= 0x00000200,
 	SCF_SE_CMD_FAILED		= 0x00000400,
 	SCF_SE_LUN_CMD			= 0x00000800,
 	SCF_SE_ALLOW_EOO		= 0x00001000,
-	SCF_SE_DISABLE_ONLINE_CHECK	= 0x00002000,
 	SCF_SENT_CHECK_CONDITION	= 0x00004000,
 	SCF_OVERFLOW_BIT		= 0x00008000,
 	SCF_UNDERFLOW_BIT		= 0x00010000,
 	SCF_SENT_DELAYED_TAS		= 0x00020000,
 	SCF_ALUA_NON_OPTIMIZED		= 0x00040000,
 	SCF_DELAYED_CMD_FROM_SAM_ATTR	= 0x00080000,
-	SCF_PASSTHROUGH_SG_TO_MEM	= 0x00100000,
-	SCF_PASSTHROUGH_CONTIG_TO_SG	= 0x00200000,
+	SCF_UNUSED			= 0x00100000,
 	SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
-	SCF_EMULATE_SYNC_CACHE		= 0x00800000,
 	SCF_EMULATE_CDB_ASYNC		= 0x01000000,
-	SCF_EMULATE_SYNC_UNMAP		= 0x02000000
+	SCF_EMULATE_QUEUE_FULL		= 0x02000000,
 };
 
 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
@@ -205,11 +202,6 @@ typedef enum {
 	SCSI_INDEX_TYPE_MAX
 } scsi_index_t;
 
-struct scsi_index_table {
-	spinlock_t	lock;
-	u32		scsi_mib_index[SCSI_INDEX_TYPE_MAX];
-} ____cacheline_aligned;
-
 struct se_cmd;
 
 struct t10_alua {
@@ -235,7 +227,7 @@ struct t10_alua_lu_gp {
 	atomic_t lu_gp_ref_cnt;
 	spinlock_t lu_gp_lock;
 	struct config_group lu_gp_group;
-	struct list_head lu_gp_list;
+	struct list_head lu_gp_node;
 	struct list_head lu_gp_mem_list;
 } ____cacheline_aligned;
 
@@ -291,10 +283,10 @@ struct t10_vpd {
 } ____cacheline_aligned;
 
 struct t10_wwn {
-	unsigned char vendor[8];
-	unsigned char model[16];
-	unsigned char revision[4];
-	unsigned char unit_serial[INQUIRY_VPD_SERIAL_LEN];
+	char vendor[8];
+	char model[16];
+	char revision[4];
+	char unit_serial[INQUIRY_VPD_SERIAL_LEN];
 	spinlock_t t10_vpd_lock;
 	struct se_subsystem_dev *t10_sub_dev;
 	struct config_group t10_wwn_group;
@@ -366,13 +358,13 @@ struct t10_reservation_ops {
 	int (*t10_pr_clear)(struct se_cmd *);
 };
 
-struct t10_reservation_template {
+struct t10_reservation {
 	/* Reservation effects all target ports */
 	int pr_all_tg_pt;
 	/* Activate Persistence across Target Power Loss enabled
 	 * for SCSI device */
 	int pr_aptpl_active;
-	/* Used by struct t10_reservation_template->pr_aptpl_buf_len */
+	/* Used by struct t10_reservation->pr_aptpl_buf_len */
 #define PR_APTPL_BUF_LEN			8192
 	u32 pr_aptpl_buf_len;
 	u32 pr_generation;
@@ -397,7 +389,7 @@ struct t10_reservation_template {
 
 struct se_queue_req {
 	int			state;
-	void			*cmd;
+	struct se_cmd		*cmd;
 	struct list_head	qr_list;
 } ____cacheline_aligned;
 
@@ -408,64 +400,10 @@ struct se_queue_obj {
 	wait_queue_head_t	thread_wq;
 } ____cacheline_aligned;
 
-/*
- * Used one per struct se_cmd to hold all extra struct se_task
- * metadata.  This structure is setup and allocated in
- * drivers/target/target_core_transport.c:__transport_alloc_se_cmd()
- */
-struct se_transport_task {
-	unsigned char		*t_task_cdb;
-	unsigned char		__t_task_cdb[TCM_MAX_COMMAND_SIZE];
-	unsigned long long	t_task_lba;
-	int			t_tasks_failed;
-	int			t_tasks_fua;
-	bool			t_tasks_bidi;
-	u32			t_task_cdbs;
-	u32			t_tasks_check;
-	u32			t_tasks_no;
-	u32			t_tasks_sectors;
-	u32			t_tasks_se_num;
-	u32			t_tasks_se_bidi_num;
-	u32			t_tasks_sg_chained_no;
-	atomic_t		t_fe_count;
-	atomic_t		t_se_count;
-	atomic_t		t_task_cdbs_left;
-	atomic_t		t_task_cdbs_ex_left;
-	atomic_t		t_task_cdbs_timeout_left;
-	atomic_t		t_task_cdbs_sent;
-	atomic_t		t_transport_aborted;
-	atomic_t		t_transport_active;
-	atomic_t		t_transport_complete;
-	atomic_t		t_transport_queue_active;
-	atomic_t		t_transport_sent;
-	atomic_t		t_transport_stop;
-	atomic_t		t_transport_timeout;
-	atomic_t		transport_dev_active;
-	atomic_t		transport_lun_active;
-	atomic_t		transport_lun_fe_stop;
-	atomic_t		transport_lun_stop;
-	spinlock_t		t_state_lock;
-	struct completion	t_transport_stop_comp;
-	struct completion	transport_lun_fe_stop_comp;
-	struct completion	transport_lun_stop_comp;
-	struct scatterlist	*t_tasks_sg_chained;
-	struct scatterlist	t_tasks_sg_bounce;
-	void			*t_task_buf;
-	/*
-	 * Used for pre-registered fabric SGL passthrough WRITE and READ
-	 * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
-	 * and other HW target mode fabric modules.
-	 */
-	struct scatterlist	*t_task_pt_sgl;
-	struct list_head	*t_mem_list;
-	/* Used for BIDI READ */
-	struct list_head	*t_mem_bidi_list;
-	struct list_head	t_task_list;
-} ____cacheline_aligned;
-
 struct se_task {
 	unsigned char	task_sense;
 	struct scatterlist *task_sg;
+	u32		task_sg_nents;
 	struct scatterlist *task_sg_bidi;
 	u8		task_scsi_status;
 	u8		task_flags;
@@ -476,8 +414,6 @@ struct se_task {
 	u32		task_no;
 	u32		task_sectors;
 	u32		task_size;
-	u32		task_sg_num;
-	u32		task_sg_offset;
 	enum dma_data_direction	task_data_direction;
 	struct se_cmd *task_se_cmd;
 	struct se_device	*se_dev;
@@ -495,9 +431,6 @@ struct se_task {
 	struct list_head t_state_list;
 } ____cacheline_aligned;
 
-#define TASK_CMD(task)	((task)->task_se_cmd)
-#define TASK_DEV(task)	((task)->se_dev)
-
 struct se_cmd {
 	/* SAM response code being sent to initiator */
 	u8			scsi_status;
@@ -531,9 +464,10 @@ struct se_cmd {
 	atomic_t                transport_sent;
 	/* Used for sense data */
 	void			*sense_buffer;
-	struct list_head	se_delayed_list;
-	struct list_head	se_ordered_list;
-	struct list_head	se_lun_list;
+	struct list_head	se_delayed_node;
+	struct list_head	se_ordered_node;
+	struct list_head	se_lun_node;
+	struct list_head	se_qf_node;
 	struct se_device      *se_dev;
 	struct se_dev_entry   *se_deve;
 	struct se_device	*se_obj_ptr;
@@ -542,18 +476,62 @@ struct se_cmd {
 	/* Only used for internal passthrough and legacy TCM fabric modules */
 	struct se_session	*se_sess;
 	struct se_tmr_req	*se_tmr_req;
-	/* t_task is setup to t_task_backstore in transport_init_se_cmd() */
-	struct se_transport_task *t_task;
-	struct se_transport_task t_task_backstore;
+	struct list_head	se_queue_node;
 	struct target_core_fabric_ops *se_tfo;
 	int (*transport_emulate_cdb)(struct se_cmd *);
-	void (*transport_split_cdb)(unsigned long long, u32 *, unsigned char *);
+	void (*transport_split_cdb)(unsigned long long, u32, unsigned char *);
 	void (*transport_wait_for_tasks)(struct se_cmd *, int, int);
 	void (*transport_complete_callback)(struct se_cmd *);
-} ____cacheline_aligned;
+	int (*transport_qf_callback)(struct se_cmd *);
 
-#define T_TASK(cmd)     ((cmd)->t_task)
-#define CMD_TFO(cmd)	((cmd)->se_tfo)
+	unsigned char		*t_task_cdb;
+	unsigned char		__t_task_cdb[TCM_MAX_COMMAND_SIZE];
+	unsigned long long	t_task_lba;
+	int			t_tasks_failed;
+	int			t_tasks_fua;
+	bool			t_tasks_bidi;
+	u32			t_tasks_sg_chained_no;
+	atomic_t		t_fe_count;
+	atomic_t		t_se_count;
+	atomic_t		t_task_cdbs_left;
+	atomic_t		t_task_cdbs_ex_left;
+	atomic_t		t_task_cdbs_timeout_left;
+	atomic_t		t_task_cdbs_sent;
+	atomic_t		t_transport_aborted;
+	atomic_t		t_transport_active;
+	atomic_t		t_transport_complete;
+	atomic_t		t_transport_queue_active;
+	atomic_t		t_transport_sent;
+	atomic_t		t_transport_stop;
+	atomic_t		t_transport_timeout;
+	atomic_t		transport_dev_active;
+	atomic_t		transport_lun_active;
+	atomic_t		transport_lun_fe_stop;
+	atomic_t		transport_lun_stop;
+	spinlock_t		t_state_lock;
+	struct completion	t_transport_stop_comp;
+	struct completion	transport_lun_fe_stop_comp;
+	struct completion	transport_lun_stop_comp;
+	struct scatterlist	*t_tasks_sg_chained;
+
+	/*
+	 * Used for pre-registered fabric SGL passthrough WRITE and READ
+	 * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
+	 * and other HW target mode fabric modules.
+	 */
+	struct scatterlist	*t_task_pt_sgl;
+	u32			t_task_pt_sgl_num;
+
+	struct scatterlist	*t_data_sg;
+	unsigned int		t_data_nents;
+	struct scatterlist	*t_bidi_data_sg;
+	unsigned int		t_bidi_data_nents;
+
+	/* Used for BIDI READ */
+	struct list_head	t_task_list;
+	u32			t_task_list_num;
+
+} ____cacheline_aligned;
 
 struct se_tmr_req {
 	/* Task Management function to be preformed */
@@ -617,9 +595,6 @@ struct se_session {
 	struct list_head	sess_acl_list;
 } ____cacheline_aligned;
 
-#define SE_SESS(cmd)		((cmd)->se_sess)
-#define SE_NODE_ACL(sess)	((sess)->se_node_acl)
-
 struct se_device;
 struct se_transform_info;
 struct scatterlist;
@@ -640,8 +615,6 @@ struct se_lun_acl {
 	struct se_ml_stat_grps	ml_stat_grps;
 }  ____cacheline_aligned;
 
-#define ML_STAT_GRPS(lacl)	(&(lacl)->ml_stat_grps)
-
 struct se_dev_entry {
 	bool			def_pr_registered;
 	/* See transport_lunflags_table */
@@ -688,6 +661,8 @@ struct se_dev_attrib {
 	int		emulate_reservations;
 	int		emulate_alua;
 	int		enforce_pr_isids;
+	int		is_nonrot;
+	int		emulate_rest_reord;
 	u32		hw_block_size;
 	u32		block_size;
 	u32		hw_max_sectors;
@@ -727,10 +702,10 @@ struct se_subsystem_dev {
 	/* T10 Inquiry and VPD WWN Information */
 	struct t10_wwn	t10_wwn;
 	/* T10 SPC-2 + SPC-3 Reservations */
-	struct t10_reservation_template t10_reservation;
+	struct t10_reservation t10_pr;
 	spinlock_t      se_dev_lock;
 	void            *se_dev_su_ptr;
-	struct list_head g_se_dev_list;
+	struct list_head se_dev_node;
 	struct config_group se_dev_group;
 	/* For T10 Reservations */
 	struct config_group se_dev_pr_group;
@@ -738,11 +713,6 @@ struct se_subsystem_dev {
 	struct se_dev_stat_grps dev_stat_grps;
 } ____cacheline_aligned;
 
-#define T10_ALUA(su_dev)	(&(su_dev)->t10_alua)
-#define T10_RES(su_dev)		(&(su_dev)->t10_reservation)
-#define T10_PR_OPS(su_dev)	(&(su_dev)->t10_reservation.pr_ops)
-#define DEV_STAT_GRP(dev)	(&(dev)->dev_stat_grps)
-
 struct se_device {
 	/* Set to 1 if thread is NOT sleeping on thread_sem */
 	u8			thread_active;
@@ -780,11 +750,11 @@ struct se_device {
 	atomic_t		dev_status_thr_count;
 	atomic_t		dev_hoq_count;
 	atomic_t		dev_ordered_sync;
+	atomic_t		dev_qf_count;
 	struct se_obj		dev_obj;
 	struct se_obj		dev_access_obj;
 	struct se_obj		dev_export_obj;
-	struct se_queue_obj	*dev_queue_obj;
-	struct se_queue_obj	*dev_status_queue_obj;
+	struct se_queue_obj	dev_queue_obj;
 	spinlock_t		delayed_cmd_lock;
 	spinlock_t		ordered_cmd_lock;
 	spinlock_t		execute_task_lock;
@@ -796,6 +766,7 @@ struct se_device {
 	spinlock_t		dev_status_thr_lock;
 	spinlock_t		se_port_lock;
 	spinlock_t		se_tmr_lock;
+	spinlock_t		qf_cmd_lock;
 	/* Used for legacy SPC-2 reservationsa */
 	struct se_node_acl	*dev_reserved_node_acl;
 	/* Used for ALUA Logical Unit Group membership */
@@ -809,10 +780,12 @@ struct se_device {
 	struct task_struct	*process_thread;
 	pid_t			process_thread_pid;
 	struct task_struct		*dev_mgmt_thread;
+	struct work_struct	qf_work_queue;
 	struct list_head	delayed_cmd_list;
 	struct list_head	ordered_cmd_list;
 	struct list_head	execute_task_list;
 	struct list_head	state_task_list;
+	struct list_head	qf_cmd_list;
 	/* Pointer to associated SE HBA */
 	struct se_hba		*se_hba;
 	struct se_subsystem_dev *se_sub_dev;
@@ -824,11 +797,6 @@ struct se_device {
 	struct list_head	g_se_dev_list;
 }  ____cacheline_aligned;
 
-#define SE_DEV(cmd)		((cmd)->se_lun->lun_se_dev)
-#define SU_DEV(dev)		((dev)->se_sub_dev)
-#define DEV_ATTRIB(dev)		(&(dev)->se_sub_dev->se_dev_attrib)
-#define DEV_T10_WWN(dev)	(&(dev)->se_sub_dev->t10_wwn)
-
 struct se_hba {
 	u16			hba_tpgt;
 	u32			hba_id;
@@ -837,24 +805,17 @@ struct se_hba {
 	/* Virtual iSCSI devices attached. */
 	u32			dev_count;
 	u32			hba_index;
-	atomic_t		load_balance_queue;
-	atomic_t		left_queue_depth;
-	/* Maximum queue depth the HBA can handle. */
-	atomic_t		max_queue_depth;
 	/* Pointer to transport specific host structure. */
 	void			*hba_ptr;
 	/* Linked list for struct se_device */
 	struct list_head	hba_dev_list;
-	struct list_head	hba_list;
+	struct list_head	hba_node;
 	spinlock_t		device_lock;
-	spinlock_t		hba_queue_lock;
 	struct config_group	hba_group;
 	struct mutex		hba_access_mutex;
 	struct se_subsystem_api *transport;
 }  ____cacheline_aligned;
 
-#define SE_HBA(dev)		((dev)->se_hba)
-
 struct se_port_stat_grps {
 	struct config_group stat_group;
 	struct config_group scsi_port_group;
@@ -881,9 +842,6 @@ struct se_lun {
 	struct se_port_stat_grps port_stat_grps;
 } ____cacheline_aligned;
 
-#define SE_LUN(cmd)		((cmd)->se_lun)
-#define PORT_STAT_GRP(lun)	(&(lun)->port_stat_grps)
-
 struct scsi_port_stats {
        u64     cmd_pdus;
        u64     tx_data_octets;
@@ -930,7 +888,7 @@ struct se_portal_group {
 	spinlock_t		tpg_lun_lock;
 	/* Pointer to $FABRIC_MOD portal group */
 	void			*se_tpg_fabric_ptr;
-	struct list_head	se_tpg_list;
+	struct list_head	se_tpg_node;
 	/* linked list for initiator ACL list */
 	struct list_head	acl_node_list;
 	struct se_lun		*tpg_lun_list;
@@ -949,8 +907,6 @@ struct se_portal_group {
 	struct config_group	tpg_param_group;
 } ____cacheline_aligned;
 
-#define TPG_TFO(se_tpg)	((se_tpg)->se_tpg_tfo)
-
 struct se_wwn {
 	struct target_fabric_configfs *wwn_tf;
 	struct config_group	wwn_group;
@@ -958,28 +914,4 @@ struct se_wwn {
 	struct config_group	fabric_stat_group;
 } ____cacheline_aligned;
 
-struct se_global {
-	u16			alua_lu_gps_counter;
-	int			g_sub_api_initialized;
-	u32			in_shutdown;
-	u32			alua_lu_gps_count;
-	u32			g_hba_id_counter;
-	struct config_group	target_core_hbagroup;
-	struct config_group	alua_group;
-	struct config_group	alua_lu_gps_group;
-	struct list_head	g_lu_gps_list;
-	struct list_head	g_se_tpg_list;
-	struct list_head	g_hba_list;
-	struct list_head	g_se_dev_list;
-	struct se_hba		*g_lun0_hba;
-	struct se_subsystem_dev *g_lun0_su_dev;
-	struct se_device	*g_lun0_dev;
-	struct t10_alua_lu_gp	*default_lu_gp;
-	spinlock_t		g_device_lock;
-	spinlock_t		hba_lock;
-	spinlock_t		se_tpg_lock;
-	spinlock_t		lu_gps_lock;
-	spinlock_t		plugin_class_lock;
-} ____cacheline_aligned;
-
 #endif /* TARGET_CORE_BASE_H */

include/target/target_core_device.h

@@ -1,8 +1,8 @@
 #ifndef TARGET_CORE_DEVICE_H
 #define TARGET_CORE_DEVICE_H
 
-extern int transport_get_lun_for_cmd(struct se_cmd *, unsigned char *, u32);
-extern int transport_get_lun_for_tmr(struct se_cmd *, u32);
+extern int transport_lookup_cmd_lun(struct se_cmd *, u32);
+extern int transport_lookup_tmr_lun(struct se_cmd *, u32);
 extern struct se_dev_entry *core_get_se_deve_from_rtpi(
 					struct se_node_acl *, u16);
 extern int core_free_device_list_for_node(struct se_node_acl *,
@@ -39,6 +39,8 @@ extern int se_dev_set_emulate_tas(struct se_device *, int);
 extern int se_dev_set_emulate_tpu(struct se_device *, int);
 extern int se_dev_set_emulate_tpws(struct se_device *, int);
 extern int se_dev_set_enforce_pr_isids(struct se_device *, int);
+extern int se_dev_set_is_nonrot(struct se_device *, int);
+extern int se_dev_set_emulate_rest_reord(struct se_device *dev, int);
 extern int se_dev_set_queue_depth(struct se_device *, u32);
 extern int se_dev_set_max_sectors(struct se_device *, u32);
 extern int se_dev_set_optimal_sectors(struct se_device *, u32);

include/target/target_core_fabric_ops.h

@@ -38,18 +38,12 @@ struct target_core_fabric_ops {
 	 * initially allocated in interrupt context.
 	 */
 	int (*new_cmd_map)(struct se_cmd *);
-	/*
-	 * Optional function pointer for TCM fabric modules that use
-	 * Linux/NET sockets to allocate struct iovec array to struct se_cmd
-	 */
-	int (*alloc_cmd_iovecs)(struct se_cmd *);
 	/*
 	 * Optional to release struct se_cmd and fabric dependent allocated
 	 * I/O descriptor in transport_cmd_check_stop()
 	 */
 	void (*check_stop_free)(struct se_cmd *);
-	void (*release_cmd_to_pool)(struct se_cmd *);
-	void (*release_cmd_direct)(struct se_cmd *);
+	void (*release_cmd)(struct se_cmd *);
 	/*
 	 * Called with spin_lock_bh(struct se_portal_group->session_lock held.
 	 */
@@ -70,7 +64,6 @@ struct target_core_fabric_ops {
 	void (*set_default_node_attributes)(struct se_node_acl *);
 	u32 (*get_task_tag)(struct se_cmd *);
 	int (*get_cmd_state)(struct se_cmd *);
-	void (*new_cmd_failure)(struct se_cmd *);
 	int (*queue_data_in)(struct se_cmd *);
 	int (*queue_status)(struct se_cmd *);
 	int (*queue_tm_rsp)(struct se_cmd *);

include/target/target_core_transport.h

@@ -101,6 +101,10 @@
 #define DA_ENFORCE_PR_ISIDS			1
 #define DA_STATUS_MAX_SECTORS_MIN		16
 #define DA_STATUS_MAX_SECTORS_MAX		8192
+/* By default don't report non-rotating (solid state) medium */
+#define DA_IS_NONROT				0
+/* Queue Algorithm Modifier default for restricted reordering in control mode page */
+#define DA_EMULATE_REST_REORD			0
 
 #define SE_MODE_PAGE_BUF			512
 
@@ -111,9 +115,8 @@ struct se_subsystem_api;
 
 extern struct kmem_cache *se_mem_cache;
 
-extern int init_se_global(void);
-extern void release_se_global(void);
-extern void init_scsi_index_table(void);
+extern int init_se_kmem_caches(void);
+extern void release_se_kmem_caches(void);
 extern u32 scsi_get_new_index(scsi_index_t);
 extern void transport_init_queue_obj(struct se_queue_obj *);
 extern int transport_subsystem_check_init(void);
@@ -160,36 +163,38 @@ extern struct se_device *transport_add_device_to_core_hba(struct se_hba *,
 					struct se_subsystem_dev *, u32,
 					void *, struct se_dev_limits *,
 					const char *, const char *);
-extern void transport_device_setup_cmd(struct se_cmd *);
 extern void transport_init_se_cmd(struct se_cmd *,
 					struct target_core_fabric_ops *,
 					struct se_session *, u32, int, int,
 					unsigned char *);
+void *transport_kmap_first_data_page(struct se_cmd *cmd);
+void transport_kunmap_first_data_page(struct se_cmd *cmd);
 extern void transport_free_se_cmd(struct se_cmd *);
 extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *);
 extern int transport_generic_handle_cdb(struct se_cmd *);
+extern int transport_handle_cdb_direct(struct se_cmd *);
 extern int transport_generic_handle_cdb_map(struct se_cmd *);
 extern int transport_generic_handle_data(struct se_cmd *);
 extern void transport_new_cmd_failure(struct se_cmd *);
 extern int transport_generic_handle_tmr(struct se_cmd *);
 extern void transport_generic_free_cmd_intr(struct se_cmd *);
 extern void __transport_stop_task_timer(struct se_task *, unsigned long *);
-extern unsigned char transport_asciihex_to_binaryhex(unsigned char val[2]);
 extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32,
 				struct scatterlist *, u32);
 extern int transport_clear_lun_from_sessions(struct se_lun *);
 extern int transport_check_aborted_status(struct se_cmd *, int);
 extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int);
 extern void transport_send_task_abort(struct se_cmd *);
-extern void transport_release_cmd_to_pool(struct se_cmd *);
-extern void transport_generic_free_cmd(struct se_cmd *, int, int, int);
+extern void transport_release_cmd(struct se_cmd *);
+extern void transport_generic_free_cmd(struct se_cmd *, int, int);
 extern void transport_generic_wait_for_cmds(struct se_cmd *, int);
-extern u32 transport_calc_sg_num(struct se_task *, struct se_mem *, u32);
+extern int transport_init_task_sg(struct se_task *, struct se_mem *, u32);
 extern int transport_map_mem_to_sg(struct se_task *, struct list_head *,
-					void *, struct se_mem *,
+					struct scatterlist *, struct se_mem *,
 					struct se_mem **, u32 *, u32 *);
 extern void transport_do_task_sg_chain(struct se_cmd *);
 extern void transport_generic_process_write(struct se_cmd *);
+extern int transport_generic_new_cmd(struct se_cmd *);
 extern int transport_generic_do_tmr(struct se_cmd *);
 /* From target_core_alua.c */
 extern int core_alua_check_nonop_delay(struct se_cmd *);
@@ -235,13 +240,13 @@ struct se_subsystem_api {
 	 */
 	int (*cdb_none)(struct se_task *);
 	/*
-	 * For SCF_SCSI_CONTROL_NONSG_IO_CDB
+	 * For SCF_SCSI_DATA_SG_IO_CDB
 	 */
-	int (*map_task_non_SG)(struct se_task *);
+	int (*map_data_SG)(struct se_task *);
 	/*
-	 * For SCF_SCSI_DATA_SG_IO_CDB and SCF_SCSI_CONTROL_SG_IO_CDB
+	 * For SCF_SCSI_CONTROL_SG_IO_CDB
 	 */
-	int (*map_task_SG)(struct se_task *);
+	int (*map_control_SG)(struct se_task *);
 	/*
 	 * attach_hba():
 	 */
@@ -292,7 +297,7 @@ struct se_subsystem_api {
 	 * drivers.  Provided out of convenience.
 	 */
 	int (*transport_complete)(struct se_task *task);
-	struct se_task *(*alloc_task)(struct se_cmd *);
+	struct se_task *(*alloc_task)(unsigned char *cdb);
 	/*
 	 * do_task():
 	 */
@@ -341,20 +346,10 @@ struct se_subsystem_api {
 	 * Get the sector_t from a subsystem backstore..
 	 */
 	sector_t (*get_blocks)(struct se_device *);
-	/*
-	 * do_se_mem_map():
-	 */
-	int (*do_se_mem_map)(struct se_task *, struct list_head *, void *,
-				struct se_mem *, struct se_mem **, u32 *, u32 *);
 	/*
 	 * get_sense_buffer():
 	 */
 	unsigned char *(*get_sense_buffer)(struct se_task *);
 } ____cacheline_aligned;
 
-#define TRANSPORT(dev)		((dev)->transport)
-#define HBA_TRANSPORT(hba)	((hba)->transport)
-
-extern struct se_global *se_global;
-
 #endif /* TARGET_CORE_TRANSPORT_H */