|
@@ -0,0 +1,3390 @@
|
|
|
+/**
|
|
|
+ * Copyright (C) 2005 - 2009 ServerEngines
|
|
|
+ * All rights reserved.
|
|
|
+ *
|
|
|
+ * This program is free software; you can redistribute it and/or
|
|
|
+ * modify it under the terms of the GNU General Public License version 2
|
|
|
+ * as published by the Free Software Foundation. The full GNU General
|
|
|
+ * Public License is included in this distribution in the file called COPYING.
|
|
|
+ *
|
|
|
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
|
|
|
+ *
|
|
|
+ * Contact Information:
|
|
|
+ * linux-drivers@serverengines.com
|
|
|
+ *
|
|
|
+ * ServerEngines
|
|
|
+ * 209 N. Fair Oaks Ave
|
|
|
+ * Sunnyvale, CA 94085
|
|
|
+ *
|
|
|
+ */
|
|
|
+#include <linux/reboot.h>
|
|
|
+#include <linux/delay.h>
|
|
|
+#include <linux/interrupt.h>
|
|
|
+#include <linux/blkdev.h>
|
|
|
+#include <linux/pci.h>
|
|
|
+#include <linux/string.h>
|
|
|
+#include <linux/kernel.h>
|
|
|
+#include <linux/semaphore.h>
|
|
|
+
|
|
|
+#include <scsi/libiscsi.h>
|
|
|
+#include <scsi/scsi_transport_iscsi.h>
|
|
|
+#include <scsi/scsi_transport.h>
|
|
|
+#include <scsi/scsi_cmnd.h>
|
|
|
+#include <scsi/scsi_device.h>
|
|
|
+#include <scsi/scsi_host.h>
|
|
|
+#include <scsi/scsi.h>
|
|
|
+#include "be_main.h"
|
|
|
+#include "be_iscsi.h"
|
|
|
+#include "be_mgmt.h"
|
|
|
+
|
|
|
+static unsigned int be_iopoll_budget = 10;
|
|
|
+static unsigned int be_max_phys_size = 64;
|
|
|
+static unsigned int enable_msix;
|
|
|
+
|
|
|
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
|
|
|
+MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
|
|
|
+MODULE_AUTHOR("ServerEngines Corporation");
|
|
|
+MODULE_LICENSE("GPL");
|
|
|
+module_param(be_iopoll_budget, int, 0);
|
|
|
+module_param(enable_msix, int, 0);
|
|
|
+module_param(be_max_phys_size, uint, S_IRUGO);
|
|
|
+MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically"
|
|
|
+ "contiguous memory that can be allocated."
|
|
|
+ "Range is 16 - 128");
|
|
|
+
|
|
|
+static int beiscsi_slave_configure(struct scsi_device *sdev)
|
|
|
+{
|
|
|
+ blk_queue_max_segment_size(sdev->request_queue, 65536);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static struct scsi_host_template beiscsi_sht = {
|
|
|
+ .module = THIS_MODULE,
|
|
|
+ .name = "ServerEngines 10Gbe open-iscsi Initiator Driver",
|
|
|
+ .proc_name = DRV_NAME,
|
|
|
+ .queuecommand = iscsi_queuecommand,
|
|
|
+ .eh_abort_handler = iscsi_eh_abort,
|
|
|
+ .change_queue_depth = iscsi_change_queue_depth,
|
|
|
+ .slave_configure = beiscsi_slave_configure,
|
|
|
+ .target_alloc = iscsi_target_alloc,
|
|
|
+ .eh_device_reset_handler = iscsi_eh_device_reset,
|
|
|
+ .eh_target_reset_handler = iscsi_eh_target_reset,
|
|
|
+ .sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
|
|
|
+ .can_queue = BE2_IO_DEPTH,
|
|
|
+ .this_id = -1,
|
|
|
+ .max_sectors = BEISCSI_MAX_SECTORS,
|
|
|
+ .cmd_per_lun = BEISCSI_CMD_PER_LUN,
|
|
|
+ .use_clustering = ENABLE_CLUSTERING,
|
|
|
+};
|
|
|
+static struct scsi_transport_template *beiscsi_scsi_transport;
|
|
|
+
|
|
|
+/*------------------- PCI Driver operations and data ----------------- */
|
|
|
+static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
|
|
|
+ { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
|
|
|
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
|
|
|
+ { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
|
|
|
+ { 0 }
|
|
|
+};
|
|
|
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
|
|
|
+
|
|
|
+static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
|
|
|
+{
|
|
|
+ struct beiscsi_hba *phba;
|
|
|
+ struct Scsi_Host *shost;
|
|
|
+
|
|
|
+ shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
|
|
|
+ if (!shost) {
|
|
|
+ dev_err(&pcidev->dev, "beiscsi_hba_alloc -"
|
|
|
+ "iscsi_host_alloc failed \n");
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+ shost->dma_boundary = pcidev->dma_mask;
|
|
|
+ shost->max_id = BE2_MAX_SESSIONS;
|
|
|
+ shost->max_channel = 0;
|
|
|
+ shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
|
|
|
+ shost->max_lun = BEISCSI_NUM_MAX_LUN;
|
|
|
+ shost->transportt = beiscsi_scsi_transport;
|
|
|
+
|
|
|
+ phba = iscsi_host_priv(shost);
|
|
|
+ memset(phba, 0, sizeof(*phba));
|
|
|
+ phba->shost = shost;
|
|
|
+ phba->pcidev = pci_dev_get(pcidev);
|
|
|
+
|
|
|
+ if (iscsi_host_add(shost, &phba->pcidev->dev))
|
|
|
+ goto free_devices;
|
|
|
+ return phba;
|
|
|
+
|
|
|
+free_devices:
|
|
|
+ pci_dev_put(phba->pcidev);
|
|
|
+ iscsi_host_free(phba->shost);
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ if (phba->csr_va) {
|
|
|
+ iounmap(phba->csr_va);
|
|
|
+ phba->csr_va = NULL;
|
|
|
+ }
|
|
|
+ if (phba->db_va) {
|
|
|
+ iounmap(phba->db_va);
|
|
|
+ phba->db_va = NULL;
|
|
|
+ }
|
|
|
+ if (phba->pci_va) {
|
|
|
+ iounmap(phba->pci_va);
|
|
|
+ phba->pci_va = NULL;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_map_pci_bars(struct beiscsi_hba *phba,
|
|
|
+ struct pci_dev *pcidev)
|
|
|
+{
|
|
|
+ u8 __iomem *addr;
|
|
|
+
|
|
|
+ addr = ioremap_nocache(pci_resource_start(pcidev, 2),
|
|
|
+ pci_resource_len(pcidev, 2));
|
|
|
+ if (addr == NULL)
|
|
|
+ return -ENOMEM;
|
|
|
+ phba->ctrl.csr = addr;
|
|
|
+ phba->csr_va = addr;
|
|
|
+ phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2);
|
|
|
+
|
|
|
+ addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024);
|
|
|
+ if (addr == NULL)
|
|
|
+ goto pci_map_err;
|
|
|
+ phba->ctrl.db = addr;
|
|
|
+ phba->db_va = addr;
|
|
|
+ phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4);
|
|
|
+
|
|
|
+ addr = ioremap_nocache(pci_resource_start(pcidev, 1),
|
|
|
+ pci_resource_len(pcidev, 1));
|
|
|
+ if (addr == NULL)
|
|
|
+ goto pci_map_err;
|
|
|
+ phba->ctrl.pcicfg = addr;
|
|
|
+ phba->pci_va = addr;
|
|
|
+ phba->pci_pa.u.a64.address = pci_resource_start(pcidev, 1);
|
|
|
+ return 0;
|
|
|
+
|
|
|
+pci_map_err:
|
|
|
+ beiscsi_unmap_pci_function(phba);
|
|
|
+ return -ENOMEM;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_enable_pci(struct pci_dev *pcidev)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret = pci_enable_device(pcidev);
|
|
|
+ if (ret) {
|
|
|
+ dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device "
|
|
|
+ "failed. Returning -ENODEV\n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
|
|
|
+ ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
|
|
|
+ if (ret) {
|
|
|
+ dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
|
|
|
+ pci_disable_device(pcidev);
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
|
|
|
+{
|
|
|
+ struct be_ctrl_info *ctrl = &phba->ctrl;
|
|
|
+ struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
|
|
|
+ struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
|
|
|
+ int status = 0;
|
|
|
+
|
|
|
+ ctrl->pdev = pdev;
|
|
|
+ status = beiscsi_map_pci_bars(phba, pdev);
|
|
|
+ if (status)
|
|
|
+ return status;
|
|
|
+
|
|
|
+ mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
|
|
|
+ mbox_mem_alloc->va = pci_alloc_consistent(pdev,
|
|
|
+ mbox_mem_alloc->size,
|
|
|
+ &mbox_mem_alloc->dma);
|
|
|
+ if (!mbox_mem_alloc->va) {
|
|
|
+ beiscsi_unmap_pci_function(phba);
|
|
|
+ status = -ENOMEM;
|
|
|
+ return status;
|
|
|
+ }
|
|
|
+
|
|
|
+ mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
|
|
|
+ mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
|
|
|
+ mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
|
|
|
+ memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
|
|
|
+ spin_lock_init(&ctrl->mbox_lock);
|
|
|
+ return status;
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_get_params(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ phba->params.ios_per_ctrl = BE2_IO_DEPTH;
|
|
|
+ phba->params.cxns_per_ctrl = BE2_MAX_SESSIONS;
|
|
|
+ phba->params.asyncpdus_per_ctrl = BE2_ASYNCPDUS;
|
|
|
+ phba->params.icds_per_ctrl = BE2_MAX_ICDS / 2;
|
|
|
+ phba->params.num_sge_per_io = BE2_SGE;
|
|
|
+ phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
|
|
|
+ phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
|
|
|
+ phba->params.eq_timer = 64;
|
|
|
+ phba->params.num_eq_entries =
|
|
|
+ (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) /
|
|
|
+ 512) + 1) * 512;
|
|
|
+ phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024)
|
|
|
+ ? 1024 : phba->params.num_eq_entries;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d \n",
|
|
|
+ phba->params.num_eq_entries);
|
|
|
+ phba->params.num_cq_entries =
|
|
|
+ (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) /
|
|
|
+ 512) + 1) * 512;
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "phba->params.num_cq_entries=%d BE2_CMDS_PER_CXN=%d"
|
|
|
+ "BE2_LOGOUTS=%d BE2_TMFS=%d BE2_ASYNCPDUS=%d \n",
|
|
|
+ phba->params.num_cq_entries, BE2_CMDS_PER_CXN,
|
|
|
+ BE2_LOGOUTS, BE2_TMFS, BE2_ASYNCPDUS);
|
|
|
+ phba->params.wrbs_per_cxn = 256;
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_ring_eq_db(struct beiscsi_hba *phba,
|
|
|
+ unsigned int id, unsigned int clr_interrupt,
|
|
|
+ unsigned int num_processed,
|
|
|
+ unsigned char rearm, unsigned char event)
|
|
|
+{
|
|
|
+ u32 val = 0;
|
|
|
+ val |= id & DB_EQ_RING_ID_MASK;
|
|
|
+ if (rearm)
|
|
|
+ val |= 1 << DB_EQ_REARM_SHIFT;
|
|
|
+ if (clr_interrupt)
|
|
|
+ val |= 1 << DB_EQ_CLR_SHIFT;
|
|
|
+ if (event)
|
|
|
+ val |= 1 << DB_EQ_EVNT_SHIFT;
|
|
|
+ val |= num_processed << DB_EQ_NUM_POPPED_SHIFT;
|
|
|
+ iowrite32(val, phba->db_va + DB_EQ_OFFSET);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * be_isr - The isr routine of the driver.
|
|
|
+ * @irq: Not used
|
|
|
+ * @dev_id: Pointer to host adapter structure
|
|
|
+ */
|
|
|
+static irqreturn_t be_isr(int irq, void *dev_id)
|
|
|
+{
|
|
|
+ struct beiscsi_hba *phba;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+ struct be_eq_entry *eqe = NULL;
|
|
|
+ struct be_queue_info *eq;
|
|
|
+ struct be_queue_info *cq;
|
|
|
+ unsigned long flags, index;
|
|
|
+ unsigned int num_eq_processed;
|
|
|
+ struct be_ctrl_info *ctrl;
|
|
|
+ int isr;
|
|
|
+
|
|
|
+ phba = dev_id;
|
|
|
+ if (!enable_msix) {
|
|
|
+ ctrl = &phba->ctrl;;
|
|
|
+ isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
|
|
|
+ (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
|
|
|
+ if (!isr)
|
|
|
+ return IRQ_NONE;
|
|
|
+ }
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+ eq = &phwi_context->be_eq.q;
|
|
|
+ cq = &phwi_context->be_cq;
|
|
|
+ index = 0;
|
|
|
+ eqe = queue_tail_node(eq);
|
|
|
+ if (!eqe)
|
|
|
+ SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
|
|
|
+
|
|
|
+ num_eq_processed = 0;
|
|
|
+ if (blk_iopoll_enabled) {
|
|
|
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
|
|
|
+ & EQE_VALID_MASK) {
|
|
|
+ if (!blk_iopoll_sched_prep(&phba->iopoll))
|
|
|
+ blk_iopoll_sched(&phba->iopoll);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
|
|
|
+ queue_tail_inc(eq);
|
|
|
+ eqe = queue_tail_node(eq);
|
|
|
+ num_eq_processed++;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "Valid EQE\n");
|
|
|
+ }
|
|
|
+ if (num_eq_processed) {
|
|
|
+ hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 0, 1);
|
|
|
+ return IRQ_HANDLED;
|
|
|
+ } else
|
|
|
+ return IRQ_NONE;
|
|
|
+ } else {
|
|
|
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
|
|
|
+ & EQE_VALID_MASK) {
|
|
|
+
|
|
|
+ if (((eqe->dw[offsetof(struct amap_eq_entry,
|
|
|
+ resource_id) / 32] &
|
|
|
+ EQE_RESID_MASK) >> 16) != cq->id) {
|
|
|
+ spin_lock_irqsave(&phba->isr_lock, flags);
|
|
|
+ phba->todo_mcc_cq = 1;
|
|
|
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
|
|
|
+ } else {
|
|
|
+ spin_lock_irqsave(&phba->isr_lock, flags);
|
|
|
+ phba->todo_cq = 1;
|
|
|
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
|
|
|
+ }
|
|
|
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
|
|
|
+ queue_tail_inc(eq);
|
|
|
+ eqe = queue_tail_node(eq);
|
|
|
+ num_eq_processed++;
|
|
|
+ }
|
|
|
+ if (phba->todo_cq || phba->todo_mcc_cq)
|
|
|
+ queue_work(phba->wq, &phba->work_cqs);
|
|
|
+
|
|
|
+ if (num_eq_processed) {
|
|
|
+ hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 1, 1);
|
|
|
+ return IRQ_HANDLED;
|
|
|
+ } else
|
|
|
+ return IRQ_NONE;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_init_irqs(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct pci_dev *pcidev = phba->pcidev;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, "beiscsi", phba);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
|
|
|
+ "Failed to register irq\\n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_ring_cq_db(struct beiscsi_hba *phba,
|
|
|
+ unsigned int id, unsigned int num_processed,
|
|
|
+ unsigned char rearm, unsigned char event)
|
|
|
+{
|
|
|
+ u32 val = 0;
|
|
|
+ val |= id & DB_CQ_RING_ID_MASK;
|
|
|
+ if (rearm)
|
|
|
+ val |= 1 << DB_CQ_REARM_SHIFT;
|
|
|
+ val |= num_processed << DB_CQ_NUM_POPPED_SHIFT;
|
|
|
+ iowrite32(val, phba->db_va + DB_CQ_OFFSET);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * async pdus include
|
|
|
+ * a. unsolicited NOP-In (target initiated NOP-In)
|
|
|
+ * b. Async Messages
|
|
|
+ * c. Reject PDU
|
|
|
+ * d. Login response
|
|
|
+ * These headers arrive unprocessed by the EP firmware and iSCSI layer
|
|
|
+ * process them
|
|
|
+ */
|
|
|
+static unsigned int
|
|
|
+beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_hba *phba,
|
|
|
+ unsigned short cid,
|
|
|
+ struct pdu_base *ppdu,
|
|
|
+ unsigned long pdu_len,
|
|
|
+ void *pbuffer, unsigned long buf_len)
|
|
|
+{
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+ struct iscsi_session *session = conn->session;
|
|
|
+
|
|
|
+ switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
|
|
|
+ PDUBASE_OPCODE_MASK) {
|
|
|
+ case ISCSI_OP_NOOP_IN:
|
|
|
+ pbuffer = NULL;
|
|
|
+ buf_len = 0;
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_ASYNC_EVENT:
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_REJECT:
|
|
|
+ WARN_ON(!pbuffer);
|
|
|
+ WARN_ON(!(buf_len == 48));
|
|
|
+ SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n");
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_LOGIN_RSP:
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "Unrecognized opcode 0x%x in async msg \n",
|
|
|
+ (ppdu->
|
|
|
+ dw[offsetof(struct amap_pdu_base, opcode) / 32]
|
|
|
+ & PDUBASE_OPCODE_MASK));
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ spin_lock_bh(&session->lock);
|
|
|
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len);
|
|
|
+ spin_unlock_bh(&session->lock);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct sgl_handle *psgl_handle;
|
|
|
+
|
|
|
+ if (phba->io_sgl_hndl_avbl) {
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "In alloc_io_sgl_handle,io_sgl_alloc_index=%d \n",
|
|
|
+ phba->io_sgl_alloc_index);
|
|
|
+ psgl_handle = phba->io_sgl_hndl_base[phba->
|
|
|
+ io_sgl_alloc_index];
|
|
|
+ phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
|
|
|
+ phba->io_sgl_hndl_avbl--;
|
|
|
+ if (phba->io_sgl_alloc_index == (phba->params.ios_per_ctrl - 1))
|
|
|
+ phba->io_sgl_alloc_index = 0;
|
|
|
+ else
|
|
|
+ phba->io_sgl_alloc_index++;
|
|
|
+ } else
|
|
|
+ psgl_handle = NULL;
|
|
|
+ return psgl_handle;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
|
|
|
+{
|
|
|
+ SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d \n",
|
|
|
+ phba->io_sgl_free_index);
|
|
|
+ if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
|
|
|
+ /*
|
|
|
+ * this can happen if clean_task is called on a task that
|
|
|
+ * failed in xmit_task or alloc_pdu.
|
|
|
+ */
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "Double Free in IO SGL io_sgl_free_index=%d,"
|
|
|
+ "value there=%p \n", phba->io_sgl_free_index,
|
|
|
+ phba->io_sgl_hndl_base[phba->io_sgl_free_index]);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
|
|
|
+ phba->io_sgl_hndl_avbl++;
|
|
|
+ if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1))
|
|
|
+ phba->io_sgl_free_index = 0;
|
|
|
+ else
|
|
|
+ phba->io_sgl_free_index++;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * alloc_wrb_handle - To allocate a wrb handle
|
|
|
+ * @phba: The hba pointer
|
|
|
+ * @cid: The cid to use for allocation
|
|
|
+ * @index: index allocation and wrb index
|
|
|
+ *
|
|
|
+ * This happens under session_lock until submission to chip
|
|
|
+ */
|
|
|
+struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
|
|
|
+ int index)
|
|
|
+{
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct wrb_handle *pwrb_handle;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[cid];
|
|
|
+ pwrb_handle = pwrb_context->pwrb_handle_base[index];
|
|
|
+ pwrb_handle->wrb_index = index;
|
|
|
+ pwrb_handle->nxt_wrb_index = index;
|
|
|
+ return pwrb_handle;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * free_wrb_handle - To free the wrb handle back to pool
|
|
|
+ * @phba: The hba pointer
|
|
|
+ * @pwrb_context: The context to free from
|
|
|
+ * @pwrb_handle: The wrb_handle to free
|
|
|
+ *
|
|
|
+ * This happens under session_lock until submission to chip
|
|
|
+ */
|
|
|
+static void
|
|
|
+free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
|
|
|
+ struct wrb_handle *pwrb_handle)
|
|
|
+{
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "FREE WRB: pwrb_handle=%p free_index=%d=0x%x"
|
|
|
+ "wrb_handles_available=%d \n",
|
|
|
+ pwrb_handle, pwrb_context->free_index,
|
|
|
+ pwrb_context->free_index, pwrb_context->wrb_handles_available);
|
|
|
+}
|
|
|
+
|
|
|
+static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct sgl_handle *psgl_handle;
|
|
|
+
|
|
|
+ if (phba->eh_sgl_hndl_avbl) {
|
|
|
+ psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
|
|
|
+ phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x \n",
|
|
|
+ phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index);
|
|
|
+ phba->eh_sgl_hndl_avbl--;
|
|
|
+ if (phba->eh_sgl_alloc_index ==
|
|
|
+ (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
|
|
|
+ 1))
|
|
|
+ phba->eh_sgl_alloc_index = 0;
|
|
|
+ else
|
|
|
+ phba->eh_sgl_alloc_index++;
|
|
|
+ } else
|
|
|
+ psgl_handle = NULL;
|
|
|
+ return psgl_handle;
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
|
|
|
+{
|
|
|
+
|
|
|
+ if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
|
|
|
+ /*
|
|
|
+ * this can happen if clean_task is called on a task that
|
|
|
+ * failed in xmit_task or alloc_pdu.
|
|
|
+ */
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "Double Free in eh SGL ,eh_sgl_free_index=%d \n",
|
|
|
+ phba->eh_sgl_free_index);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
|
|
|
+ phba->eh_sgl_hndl_avbl++;
|
|
|
+ if (phba->eh_sgl_free_index ==
|
|
|
+ (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1))
|
|
|
+ phba->eh_sgl_free_index = 0;
|
|
|
+ else
|
|
|
+ phba->eh_sgl_free_index++;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+be_complete_io(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct iscsi_task *task, struct sol_cqe *psol)
|
|
|
+{
|
|
|
+ struct beiscsi_io_task *io_task = task->dd_data;
|
|
|
+ struct be_status_bhs *sts_bhs =
|
|
|
+ (struct be_status_bhs *)io_task->cmd_bhs;
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+ unsigned int sense_len;
|
|
|
+ unsigned char *sense;
|
|
|
+ u32 resid = 0, exp_cmdsn, max_cmdsn;
|
|
|
+ u8 rsp, status, flags;
|
|
|
+
|
|
|
+ exp_cmdsn = be32_to_cpu(psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
|
|
|
+ & SOL_EXP_CMD_SN_MASK);
|
|
|
+ max_cmdsn = be32_to_cpu((psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
|
|
|
+ & SOL_EXP_CMD_SN_MASK) +
|
|
|
+ ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
|
|
|
+ / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
|
|
|
+ rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32]
|
|
|
+ & SOL_RESP_MASK) >> 16);
|
|
|
+ status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32]
|
|
|
+ & SOL_STS_MASK) >> 8);
|
|
|
+ flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
|
|
|
+ & SOL_FLAGS_MASK) >> 24) | 0x80;
|
|
|
+
|
|
|
+ task->sc->result = (DID_OK << 16) | status;
|
|
|
+ if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
|
|
|
+ task->sc->result = DID_ERROR << 16;
|
|
|
+ goto unmap;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* bidi not initially supported */
|
|
|
+ if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) {
|
|
|
+ resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) /
|
|
|
+ 32] & SOL_RES_CNT_MASK);
|
|
|
+
|
|
|
+ if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW))
|
|
|
+ task->sc->result = DID_ERROR << 16;
|
|
|
+
|
|
|
+ if (flags & ISCSI_FLAG_CMD_UNDERFLOW) {
|
|
|
+ scsi_set_resid(task->sc, resid);
|
|
|
+ if (!status && (scsi_bufflen(task->sc) - resid <
|
|
|
+ task->sc->underflow))
|
|
|
+ task->sc->result = DID_ERROR << 16;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (status == SAM_STAT_CHECK_CONDITION) {
|
|
|
+ sense = sts_bhs->sense_info + sizeof(unsigned short);
|
|
|
+ sense_len =
|
|
|
+ cpu_to_be16((unsigned short)(sts_bhs->sense_info[0]));
|
|
|
+ memcpy(task->sc->sense_buffer, sense,
|
|
|
+ min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
|
|
|
+ }
|
|
|
+ if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) {
|
|
|
+ if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
|
|
|
+ & SOL_RES_CNT_MASK)
|
|
|
+ conn->rxdata_octets += (psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
|
|
|
+ & SOL_RES_CNT_MASK);
|
|
|
+ }
|
|
|
+unmap:
|
|
|
+ scsi_dma_unmap(io_task->scsi_cmnd);
|
|
|
+ iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn);
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+be_complete_logout(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct iscsi_task *task, struct sol_cqe *psol)
|
|
|
+{
|
|
|
+ struct iscsi_logout_rsp *hdr;
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+
|
|
|
+ hdr = (struct iscsi_logout_rsp *)task->hdr;
|
|
|
+ hdr->t2wait = 5;
|
|
|
+ hdr->t2retain = 0;
|
|
|
+ hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
|
|
|
+ & SOL_FLAGS_MASK) >> 24) | 0x80;
|
|
|
+ hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
|
|
|
+ 32] & SOL_RESP_MASK);
|
|
|
+ hdr->exp_cmdsn = cpu_to_be32(psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
|
|
|
+ & SOL_EXP_CMD_SN_MASK);
|
|
|
+ hdr->max_cmdsn = be32_to_cpu((psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
|
|
|
+ & SOL_EXP_CMD_SN_MASK) +
|
|
|
+ ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
|
|
|
+ / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
|
|
|
+ hdr->hlength = 0;
|
|
|
+
|
|
|
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct iscsi_task *task, struct sol_cqe *psol)
|
|
|
+{
|
|
|
+ struct iscsi_tm_rsp *hdr;
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+
|
|
|
+ hdr = (struct iscsi_tm_rsp *)task->hdr;
|
|
|
+ hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
|
|
|
+ & SOL_FLAGS_MASK) >> 24) | 0x80;
|
|
|
+ hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
|
|
|
+ 32] & SOL_RESP_MASK);
|
|
|
+ hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
|
|
|
+ i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
|
|
|
+ hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
|
|
|
+ i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
|
|
|
+ ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
|
|
|
+ / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
|
|
|
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_hba *phba, struct sol_cqe *psol)
|
|
|
+{
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+ struct wrb_handle *pwrb_handle;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+ struct iscsi_session *session = conn->session;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[((psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, cid) / 32] &
|
|
|
+ SOL_CID_MASK) >> 6)];
|
|
|
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, wrb_index) /
|
|
|
+ 32] & SOL_WRB_INDEX_MASK) >> 16)];
|
|
|
+ spin_lock_bh(&session->lock);
|
|
|
+ free_wrb_handle(phba, pwrb_context, pwrb_handle);
|
|
|
+ spin_unlock_bh(&session->lock);
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct iscsi_task *task, struct sol_cqe *psol)
|
|
|
+{
|
|
|
+ struct iscsi_nopin *hdr;
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+
|
|
|
+ hdr = (struct iscsi_nopin *)task->hdr;
|
|
|
+ hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
|
|
|
+ & SOL_FLAGS_MASK) >> 24) | 0x80;
|
|
|
+ hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
|
|
|
+ i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
|
|
|
+ hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
|
|
|
+ i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
|
|
|
+ ((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
|
|
|
+ / 32] & SOL_CMD_WND_MASK) >> 24) - 1);
|
|
|
+ hdr->opcode = ISCSI_OP_NOOP_IN;
|
|
|
+ __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_hba *phba, struct sol_cqe *psol)
|
|
|
+{
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+ struct wrb_handle *pwrb_handle;
|
|
|
+ struct iscsi_wrb *pwrb = NULL;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct iscsi_task *task;
|
|
|
+ struct beiscsi_io_task *io_task;
|
|
|
+ struct iscsi_conn *conn = beiscsi_conn->conn;
|
|
|
+ struct iscsi_session *session = conn->session;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+
|
|
|
+ pwrb_context = &phwi_ctrlr->
|
|
|
+ wrb_context[((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
|
|
|
+ & SOL_CID_MASK) >> 6)];
|
|
|
+ pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, wrb_index) /
|
|
|
+ 32] & SOL_WRB_INDEX_MASK) >> 16)];
|
|
|
+
|
|
|
+ task = pwrb_handle->pio_handle;
|
|
|
+ io_task = task->dd_data;
|
|
|
+ spin_lock_bh(&session->lock);
|
|
|
+ pwrb = pwrb_handle->pwrb;
|
|
|
+ switch ((pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] &
|
|
|
+ WRB_TYPE_MASK) >> 28) {
|
|
|
+ case HWH_TYPE_IO:
|
|
|
+ case HWH_TYPE_IO_RD:
|
|
|
+ if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
|
|
|
+ ISCSI_OP_NOOP_OUT) {
|
|
|
+ be_complete_nopin_resp(beiscsi_conn, task, psol);
|
|
|
+ } else
|
|
|
+ be_complete_io(beiscsi_conn, task, psol);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HWH_TYPE_LOGOUT:
|
|
|
+ be_complete_logout(beiscsi_conn, task, psol);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HWH_TYPE_LOGIN:
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd"
|
|
|
+ "- Solicited path \n");
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HWH_TYPE_TMF:
|
|
|
+ be_complete_tmf(beiscsi_conn, task, psol);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case HWH_TYPE_NOP:
|
|
|
+ be_complete_nopin_resp(beiscsi_conn, task, psol);
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "wrb_index 0x%x CID 0x%x\n",
|
|
|
+ ((psol->dw[offsetof(struct amap_iscsi_wrb, type) /
|
|
|
+ 32] & SOL_WRB_INDEX_MASK) >> 16),
|
|
|
+ ((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
|
|
|
+ & SOL_CID_MASK) >> 6));
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ spin_unlock_bh(&session->lock);
|
|
|
+}
|
|
|
+
|
|
|
+static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context
|
|
|
+ *pasync_ctx, unsigned int is_header,
|
|
|
+ unsigned int host_write_ptr)
|
|
|
+{
|
|
|
+ if (is_header)
|
|
|
+ return &pasync_ctx->async_entry[host_write_ptr].
|
|
|
+ header_busy_list;
|
|
|
+ else
|
|
|
+ return &pasync_ctx->async_entry[host_write_ptr].data_busy_list;
|
|
|
+}
|
|
|
+
|
|
|
+static struct async_pdu_handle *
|
|
|
+hwi_get_async_handle(struct beiscsi_hba *phba,
|
|
|
+ struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx,
|
|
|
+ struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index)
|
|
|
+{
|
|
|
+ struct be_bus_address phys_addr;
|
|
|
+ struct list_head *pbusy_list;
|
|
|
+ struct async_pdu_handle *pasync_handle = NULL;
|
|
|
+ int buffer_len = 0;
|
|
|
+ unsigned char buffer_index = -1;
|
|
|
+ unsigned char is_header = 0;
|
|
|
+
|
|
|
+ phys_addr.u.a32.address_lo =
|
|
|
+ pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] -
|
|
|
+ ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32]
|
|
|
+ & PDUCQE_DPL_MASK) >> 16);
|
|
|
+ phys_addr.u.a32.address_hi =
|
|
|
+ pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32];
|
|
|
+
|
|
|
+ phys_addr.u.a64.address =
|
|
|
+ *((unsigned long long *)(&phys_addr.u.a64.address));
|
|
|
+
|
|
|
+ switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32]
|
|
|
+ & PDUCQE_CODE_MASK) {
|
|
|
+ case UNSOL_HDR_NOTIFY:
|
|
|
+ is_header = 1;
|
|
|
+
|
|
|
+ pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1,
|
|
|
+ (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
|
|
|
+ index) / 32] & PDUCQE_INDEX_MASK));
|
|
|
+
|
|
|
+ buffer_len = (unsigned int)(phys_addr.u.a64.address -
|
|
|
+ pasync_ctx->async_header.pa_base.u.a64.address);
|
|
|
+
|
|
|
+ buffer_index = buffer_len /
|
|
|
+ pasync_ctx->async_header.buffer_size;
|
|
|
+
|
|
|
+ break;
|
|
|
+ case UNSOL_DATA_NOTIFY:
|
|
|
+ pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe->
|
|
|
+ dw[offsetof(struct amap_i_t_dpdu_cqe,
|
|
|
+ index) / 32] & PDUCQE_INDEX_MASK));
|
|
|
+ buffer_len = (unsigned long)(phys_addr.u.a64.address -
|
|
|
+ pasync_ctx->async_data.pa_base.u.
|
|
|
+ a64.address);
|
|
|
+ buffer_index = buffer_len / pasync_ctx->async_data.buffer_size;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ pbusy_list = NULL;
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "Unexpected code=%d \n",
|
|
|
+ pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
|
|
|
+ code) / 32] & PDUCQE_CODE_MASK);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries));
|
|
|
+ WARN_ON(list_empty(pbusy_list));
|
|
|
+ list_for_each_entry(pasync_handle, pbusy_list, link) {
|
|
|
+ WARN_ON(pasync_handle->consumed);
|
|
|
+ if (pasync_handle->index == buffer_index)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ WARN_ON(!pasync_handle);
|
|
|
+
|
|
|
+ pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid;
|
|
|
+ pasync_handle->is_header = is_header;
|
|
|
+ pasync_handle->buffer_len = ((pdpdu_cqe->
|
|
|
+ dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32]
|
|
|
+ & PDUCQE_DPL_MASK) >> 16);
|
|
|
+
|
|
|
+ *pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
|
|
|
+ index) / 32] & PDUCQE_INDEX_MASK);
|
|
|
+ return pasync_handle;
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned int
|
|
|
+hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx,
|
|
|
+ unsigned int is_header, unsigned int cq_index)
|
|
|
+{
|
|
|
+ struct list_head *pbusy_list;
|
|
|
+ struct async_pdu_handle *pasync_handle;
|
|
|
+ unsigned int num_entries, writables = 0;
|
|
|
+ unsigned int *pep_read_ptr, *pwritables;
|
|
|
+
|
|
|
+
|
|
|
+ if (is_header) {
|
|
|
+ pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
|
|
|
+ pwritables = &pasync_ctx->async_header.writables;
|
|
|
+ num_entries = pasync_ctx->async_header.num_entries;
|
|
|
+ } else {
|
|
|
+ pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
|
|
|
+ pwritables = &pasync_ctx->async_data.writables;
|
|
|
+ num_entries = pasync_ctx->async_data.num_entries;
|
|
|
+ }
|
|
|
+
|
|
|
+ while ((*pep_read_ptr) != cq_index) {
|
|
|
+ (*pep_read_ptr)++;
|
|
|
+ *pep_read_ptr = (*pep_read_ptr) % num_entries;
|
|
|
+
|
|
|
+ pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header,
|
|
|
+ *pep_read_ptr);
|
|
|
+ if (writables == 0)
|
|
|
+ WARN_ON(list_empty(pbusy_list));
|
|
|
+
|
|
|
+ if (!list_empty(pbusy_list)) {
|
|
|
+ pasync_handle = list_entry(pbusy_list->next,
|
|
|
+ struct async_pdu_handle,
|
|
|
+ link);
|
|
|
+ WARN_ON(!pasync_handle);
|
|
|
+ pasync_handle->consumed = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ writables++;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!writables) {
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "Duplicate notification received - index 0x%x!!\n",
|
|
|
+ cq_index);
|
|
|
+ WARN_ON(1);
|
|
|
+ }
|
|
|
+
|
|
|
+ *pwritables = *pwritables + writables;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba,
|
|
|
+ unsigned int cri)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx;
|
|
|
+ struct async_pdu_handle *pasync_handle, *tmp_handle;
|
|
|
+ struct list_head *plist;
|
|
|
+ unsigned int i = 0;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
|
|
|
+
|
|
|
+ plist = &pasync_ctx->async_entry[cri].wait_queue.list;
|
|
|
+
|
|
|
+ list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
|
|
|
+ list_del(&pasync_handle->link);
|
|
|
+
|
|
|
+ if (i == 0) {
|
|
|
+ list_add_tail(&pasync_handle->link,
|
|
|
+ &pasync_ctx->async_header.free_list);
|
|
|
+ pasync_ctx->async_header.free_entries++;
|
|
|
+ i++;
|
|
|
+ } else {
|
|
|
+ list_add_tail(&pasync_handle->link,
|
|
|
+ &pasync_ctx->async_data.free_list);
|
|
|
+ pasync_ctx->async_data.free_entries++;
|
|
|
+ i++;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list);
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0;
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static struct phys_addr *
|
|
|
+hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
|
|
|
+ unsigned int is_header, unsigned int host_write_ptr)
|
|
|
+{
|
|
|
+ struct phys_addr *pasync_sge = NULL;
|
|
|
+
|
|
|
+ if (is_header)
|
|
|
+ pasync_sge = pasync_ctx->async_header.ring_base;
|
|
|
+ else
|
|
|
+ pasync_sge = pasync_ctx->async_data.ring_base;
|
|
|
+
|
|
|
+ return pasync_sge + host_write_ptr;
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_post_async_buffers(struct beiscsi_hba *phba,
|
|
|
+ unsigned int is_header)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx;
|
|
|
+ struct async_pdu_handle *pasync_handle;
|
|
|
+ struct list_head *pfree_link, *pbusy_list;
|
|
|
+ struct phys_addr *pasync_sge;
|
|
|
+ unsigned int ring_id, num_entries;
|
|
|
+ unsigned int host_write_num;
|
|
|
+ unsigned int writables;
|
|
|
+ unsigned int i = 0;
|
|
|
+ u32 doorbell = 0;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
|
|
|
+
|
|
|
+ if (is_header) {
|
|
|
+ num_entries = pasync_ctx->async_header.num_entries;
|
|
|
+ writables = min(pasync_ctx->async_header.writables,
|
|
|
+ pasync_ctx->async_header.free_entries);
|
|
|
+ pfree_link = pasync_ctx->async_header.free_list.next;
|
|
|
+ host_write_num = pasync_ctx->async_header.host_write_ptr;
|
|
|
+ ring_id = phwi_ctrlr->default_pdu_hdr.id;
|
|
|
+ } else {
|
|
|
+ num_entries = pasync_ctx->async_data.num_entries;
|
|
|
+ writables = min(pasync_ctx->async_data.writables,
|
|
|
+ pasync_ctx->async_data.free_entries);
|
|
|
+ pfree_link = pasync_ctx->async_data.free_list.next;
|
|
|
+ host_write_num = pasync_ctx->async_data.host_write_ptr;
|
|
|
+ ring_id = phwi_ctrlr->default_pdu_data.id;
|
|
|
+ }
|
|
|
+
|
|
|
+ writables = (writables / 8) * 8;
|
|
|
+ if (writables) {
|
|
|
+ for (i = 0; i < writables; i++) {
|
|
|
+ pbusy_list =
|
|
|
+ hwi_get_async_busy_list(pasync_ctx, is_header,
|
|
|
+ host_write_num);
|
|
|
+ pasync_handle =
|
|
|
+ list_entry(pfree_link, struct async_pdu_handle,
|
|
|
+ link);
|
|
|
+ WARN_ON(!pasync_handle);
|
|
|
+ pasync_handle->consumed = 0;
|
|
|
+
|
|
|
+ pfree_link = pfree_link->next;
|
|
|
+
|
|
|
+ pasync_sge = hwi_get_ring_address(pasync_ctx,
|
|
|
+ is_header, host_write_num);
|
|
|
+
|
|
|
+ pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
|
|
|
+ pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
|
|
|
+
|
|
|
+ list_move(&pasync_handle->link, pbusy_list);
|
|
|
+
|
|
|
+ host_write_num++;
|
|
|
+ host_write_num = host_write_num % num_entries;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (is_header) {
|
|
|
+ pasync_ctx->async_header.host_write_ptr =
|
|
|
+ host_write_num;
|
|
|
+ pasync_ctx->async_header.free_entries -= writables;
|
|
|
+ pasync_ctx->async_header.writables -= writables;
|
|
|
+ pasync_ctx->async_header.busy_entries += writables;
|
|
|
+ } else {
|
|
|
+ pasync_ctx->async_data.host_write_ptr = host_write_num;
|
|
|
+ pasync_ctx->async_data.free_entries -= writables;
|
|
|
+ pasync_ctx->async_data.writables -= writables;
|
|
|
+ pasync_ctx->async_data.busy_entries += writables;
|
|
|
+ }
|
|
|
+
|
|
|
+ doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
|
|
|
+ doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
|
|
|
+ doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
|
|
|
+ doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
|
|
|
+ << DB_DEF_PDU_CQPROC_SHIFT;
|
|
|
+
|
|
|
+ iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
|
|
|
+ struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct i_t_dpdu_cqe *pdpdu_cqe)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx;
|
|
|
+ struct async_pdu_handle *pasync_handle = NULL;
|
|
|
+ unsigned int cq_index = -1;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
|
|
|
+
|
|
|
+ pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
|
|
|
+ pdpdu_cqe, &cq_index);
|
|
|
+ BUG_ON(pasync_handle->is_header != 0);
|
|
|
+ if (pasync_handle->consumed == 0)
|
|
|
+ hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
|
|
|
+ cq_index);
|
|
|
+
|
|
|
+ hwi_free_async_msg(phba, pasync_handle->cri);
|
|
|
+ hwi_post_async_buffers(phba, pasync_handle->is_header);
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned int
|
|
|
+hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_hba *phba,
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx, unsigned short cri)
|
|
|
+{
|
|
|
+ struct list_head *plist;
|
|
|
+ struct async_pdu_handle *pasync_handle;
|
|
|
+ void *phdr = NULL;
|
|
|
+ unsigned int hdr_len = 0, buf_len = 0;
|
|
|
+ unsigned int status, index = 0, offset = 0;
|
|
|
+ void *pfirst_buffer = NULL;
|
|
|
+ unsigned int num_buf = 0;
|
|
|
+
|
|
|
+ plist = &pasync_ctx->async_entry[cri].wait_queue.list;
|
|
|
+
|
|
|
+ list_for_each_entry(pasync_handle, plist, link) {
|
|
|
+ if (index == 0) {
|
|
|
+ phdr = pasync_handle->pbuffer;
|
|
|
+ hdr_len = pasync_handle->buffer_len;
|
|
|
+ } else {
|
|
|
+ buf_len = pasync_handle->buffer_len;
|
|
|
+ if (!num_buf) {
|
|
|
+ pfirst_buffer = pasync_handle->pbuffer;
|
|
|
+ num_buf++;
|
|
|
+ }
|
|
|
+ memcpy(pfirst_buffer + offset,
|
|
|
+ pasync_handle->pbuffer, buf_len);
|
|
|
+ offset = buf_len;
|
|
|
+ }
|
|
|
+ index++;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = beiscsi_process_async_pdu(beiscsi_conn, phba,
|
|
|
+ beiscsi_conn->beiscsi_conn_cid,
|
|
|
+ phdr, hdr_len, pfirst_buffer,
|
|
|
+ buf_len);
|
|
|
+
|
|
|
+ if (status == 0)
|
|
|
+ hwi_free_async_msg(phba, cri);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned int
|
|
|
+hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_hba *phba,
|
|
|
+ struct async_pdu_handle *pasync_handle)
|
|
|
+{
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ unsigned int bytes_needed = 0, status = 0;
|
|
|
+ unsigned short cri = pasync_handle->cri;
|
|
|
+ struct pdu_base *ppdu;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
|
|
|
+
|
|
|
+ list_del(&pasync_handle->link);
|
|
|
+ if (pasync_handle->is_header) {
|
|
|
+ pasync_ctx->async_header.busy_entries--;
|
|
|
+ if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
|
|
|
+ hwi_free_async_msg(phba, cri);
|
|
|
+ BUG();
|
|
|
+ }
|
|
|
+
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1;
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.hdr_len =
|
|
|
+ (unsigned short)pasync_handle->buffer_len;
|
|
|
+ list_add_tail(&pasync_handle->link,
|
|
|
+ &pasync_ctx->async_entry[cri].wait_queue.list);
|
|
|
+
|
|
|
+ ppdu = pasync_handle->pbuffer;
|
|
|
+ bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base,
|
|
|
+ data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) &
|
|
|
+ 0xFFFF0000) | ((be16_to_cpu((ppdu->
|
|
|
+ dw[offsetof(struct amap_pdu_base, data_len_lo) / 32]
|
|
|
+ & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF));
|
|
|
+
|
|
|
+ if (status == 0) {
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.bytes_needed =
|
|
|
+ bytes_needed;
|
|
|
+
|
|
|
+ if (bytes_needed == 0)
|
|
|
+ status = hwi_fwd_async_msg(beiscsi_conn, phba,
|
|
|
+ pasync_ctx, cri);
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ pasync_ctx->async_data.busy_entries--;
|
|
|
+ if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
|
|
|
+ list_add_tail(&pasync_handle->link,
|
|
|
+ &pasync_ctx->async_entry[cri].wait_queue.
|
|
|
+ list);
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.
|
|
|
+ bytes_received +=
|
|
|
+ (unsigned short)pasync_handle->buffer_len;
|
|
|
+
|
|
|
+ if (pasync_ctx->async_entry[cri].wait_queue.
|
|
|
+ bytes_received >=
|
|
|
+ pasync_ctx->async_entry[cri].wait_queue.
|
|
|
+ bytes_needed)
|
|
|
+ status = hwi_fwd_async_msg(beiscsi_conn, phba,
|
|
|
+ pasync_ctx, cri);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return status;
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_hba *phba,
|
|
|
+ struct i_t_dpdu_cqe *pdpdu_cqe)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx;
|
|
|
+ struct async_pdu_handle *pasync_handle = NULL;
|
|
|
+ unsigned int cq_index = -1;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
|
|
|
+ pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
|
|
|
+ pdpdu_cqe, &cq_index);
|
|
|
+
|
|
|
+ if (pasync_handle->consumed == 0)
|
|
|
+ hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
|
|
|
+ cq_index);
|
|
|
+ hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
|
|
|
+ hwi_post_async_buffers(phba, pasync_handle->is_header);
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+ struct be_queue_info *cq;
|
|
|
+ struct sol_cqe *sol;
|
|
|
+ struct dmsg_cqe *dmsg;
|
|
|
+ unsigned int num_processed = 0;
|
|
|
+ unsigned int tot_nump = 0;
|
|
|
+ struct beiscsi_conn *beiscsi_conn;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+ cq = &phwi_context->be_cq;
|
|
|
+ sol = queue_tail_node(cq);
|
|
|
+
|
|
|
+ while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
|
|
|
+ CQE_VALID_MASK) {
|
|
|
+ be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
|
|
|
+
|
|
|
+ beiscsi_conn = phba->conn_table[(u32) (sol->
|
|
|
+ dw[offsetof(struct amap_sol_cqe, cid) / 32] &
|
|
|
+ SOL_CID_MASK) >> 6];
|
|
|
+
|
|
|
+ if (!beiscsi_conn || !beiscsi_conn->ep) {
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "Connection table empty for cid = %d\n",
|
|
|
+ (u32)(sol->dw[offsetof(struct amap_sol_cqe,
|
|
|
+ cid) / 32] & SOL_CID_MASK) >> 6);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (num_processed >= 32) {
|
|
|
+ hwi_ring_cq_db(phba, phwi_context->be_cq.id,
|
|
|
+ num_processed, 0, 0);
|
|
|
+ tot_nump += num_processed;
|
|
|
+ num_processed = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) /
|
|
|
+ 32] & CQE_CODE_MASK) {
|
|
|
+ case SOL_CMD_COMPLETE:
|
|
|
+ hwi_complete_cmd(beiscsi_conn, phba, sol);
|
|
|
+ break;
|
|
|
+ case DRIVERMSG_NOTIFY:
|
|
|
+ SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY \n");
|
|
|
+ dmsg = (struct dmsg_cqe *)sol;
|
|
|
+ hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
|
|
|
+ break;
|
|
|
+ case UNSOL_HDR_NOTIFY:
|
|
|
+ case UNSOL_DATA_NOTIFY:
|
|
|
+ SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR/DATA_NOTIFY\n");
|
|
|
+ hwi_process_default_pdu_ring(beiscsi_conn, phba,
|
|
|
+ (struct i_t_dpdu_cqe *)sol);
|
|
|
+ break;
|
|
|
+ case CXN_INVALIDATE_INDEX_NOTIFY:
|
|
|
+ case CMD_INVALIDATED_NOTIFY:
|
|
|
+ case CXN_INVALIDATE_NOTIFY:
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "Ignoring CQ Error notification for cmd/cxn"
|
|
|
+ "invalidate\n");
|
|
|
+ break;
|
|
|
+ case SOL_CMD_KILLED_DATA_DIGEST_ERR:
|
|
|
+ case CMD_KILLED_INVALID_STATSN_RCVD:
|
|
|
+ case CMD_KILLED_INVALID_R2T_RCVD:
|
|
|
+ case CMD_CXN_KILLED_LUN_INVALID:
|
|
|
+ case CMD_CXN_KILLED_ICD_INVALID:
|
|
|
+ case CMD_CXN_KILLED_ITT_INVALID:
|
|
|
+ case CMD_CXN_KILLED_SEQ_OUTOFORDER:
|
|
|
+ case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "CQ Error notification for cmd.. "
|
|
|
+ "code %d cid 0x%x\n",
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
|
|
|
+ 32] & CQE_CODE_MASK,
|
|
|
+ (sol->dw[offsetof(struct amap_sol_cqe, cid) /
|
|
|
+ 32] & SOL_CID_MASK));
|
|
|
+ break;
|
|
|
+ case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "Digest error on def pdu ring, dropping..\n");
|
|
|
+ hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
|
|
|
+ (struct i_t_dpdu_cqe *) sol);
|
|
|
+ break;
|
|
|
+ case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
|
|
|
+ case CXN_KILLED_BURST_LEN_MISMATCH:
|
|
|
+ case CXN_KILLED_AHS_RCVD:
|
|
|
+ case CXN_KILLED_HDR_DIGEST_ERR:
|
|
|
+ case CXN_KILLED_UNKNOWN_HDR:
|
|
|
+ case CXN_KILLED_STALE_ITT_TTT_RCVD:
|
|
|
+ case CXN_KILLED_INVALID_ITT_TTT_RCVD:
|
|
|
+ case CXN_KILLED_TIMED_OUT:
|
|
|
+ case CXN_KILLED_FIN_RCVD:
|
|
|
+ case CXN_KILLED_BAD_UNSOL_PDU_RCVD:
|
|
|
+ case CXN_KILLED_BAD_WRB_INDEX_ERROR:
|
|
|
+ case CXN_KILLED_OVER_RUN_RESIDUAL:
|
|
|
+ case CXN_KILLED_UNDER_RUN_RESIDUAL:
|
|
|
+ case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
|
|
|
+ SE_DEBUG(DBG_LVL_1, "CQ Error %d, resetting CID "
|
|
|
+ "0x%x...\n",
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
|
|
|
+ 32] & CQE_CODE_MASK,
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, cid) /
|
|
|
+ 32] & CQE_CID_MASK);
|
|
|
+ iscsi_conn_failure(beiscsi_conn->conn,
|
|
|
+ ISCSI_ERR_CONN_FAILED);
|
|
|
+ break;
|
|
|
+ case CXN_KILLED_RST_SENT:
|
|
|
+ case CXN_KILLED_RST_RCVD:
|
|
|
+ SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset received/sent "
|
|
|
+ "on CID 0x%x...\n",
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
|
|
|
+ 32] & CQE_CODE_MASK,
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, cid) /
|
|
|
+ 32] & CQE_CID_MASK);
|
|
|
+ iscsi_conn_failure(beiscsi_conn->conn,
|
|
|
+ ISCSI_ERR_CONN_FAILED);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d "
|
|
|
+ "received on CID 0x%x...\n",
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, code) /
|
|
|
+ 32] & CQE_CODE_MASK,
|
|
|
+ sol->dw[offsetof(struct amap_sol_cqe, cid) /
|
|
|
+ 32] & CQE_CID_MASK);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0);
|
|
|
+ queue_tail_inc(cq);
|
|
|
+ sol = queue_tail_node(cq);
|
|
|
+ num_processed++;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (num_processed > 0) {
|
|
|
+ tot_nump += num_processed;
|
|
|
+ hwi_ring_cq_db(phba, phwi_context->be_cq.id, num_processed,
|
|
|
+ 1, 0);
|
|
|
+ }
|
|
|
+ return tot_nump;
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_process_all_cqs(struct work_struct *work)
|
|
|
+{
|
|
|
+ unsigned long flags;
|
|
|
+ struct beiscsi_hba *phba =
|
|
|
+ container_of(work, struct beiscsi_hba, work_cqs);
|
|
|
+
|
|
|
+ if (phba->todo_mcc_cq) {
|
|
|
+ spin_lock_irqsave(&phba->isr_lock, flags);
|
|
|
+ phba->todo_mcc_cq = 0;
|
|
|
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
|
|
|
+ SE_DEBUG(DBG_LVL_1, "MCC Interrupt Not expected \n");
|
|
|
+ }
|
|
|
+
|
|
|
+ if (phba->todo_cq) {
|
|
|
+ spin_lock_irqsave(&phba->isr_lock, flags);
|
|
|
+ phba->todo_cq = 0;
|
|
|
+ spin_unlock_irqrestore(&phba->isr_lock, flags);
|
|
|
+ beiscsi_process_cq(phba);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int be_iopoll(struct blk_iopoll *iop, int budget)
|
|
|
+{
|
|
|
+ static unsigned int ret;
|
|
|
+ struct beiscsi_hba *phba;
|
|
|
+
|
|
|
+ phba = container_of(iop, struct beiscsi_hba, iopoll);
|
|
|
+
|
|
|
+ ret = beiscsi_process_cq(phba);
|
|
|
+ if (ret < budget) {
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+ blk_iopoll_complete(iop);
|
|
|
+ hwi_ring_eq_db(phba, phwi_context->be_eq.q.id, 0,
|
|
|
+ 0, 1, 1);
|
|
|
+ }
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg,
|
|
|
+ unsigned int num_sg, struct beiscsi_io_task *io_task)
|
|
|
+{
|
|
|
+ struct iscsi_sge *psgl;
|
|
|
+ unsigned short sg_len, index;
|
|
|
+ unsigned int sge_len = 0;
|
|
|
+ unsigned long long addr;
|
|
|
+ struct scatterlist *l_sg;
|
|
|
+ unsigned int offset;
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
|
|
|
+ io_task->bhs_pa.u.a32.address_lo);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
|
|
|
+ io_task->bhs_pa.u.a32.address_hi);
|
|
|
+
|
|
|
+ l_sg = sg;
|
|
|
+ for (index = 0; (index < num_sg) && (index < 2); index++, sg_next(sg)) {
|
|
|
+ if (index == 0) {
|
|
|
+ sg_len = sg_dma_len(sg);
|
|
|
+ addr = (u64) sg_dma_address(sg);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
|
|
|
+ (addr & 0xFFFFFFFF));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
|
|
|
+ (addr >> 32));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
|
|
|
+ sg_len);
|
|
|
+ sge_len = sg_len;
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
|
|
|
+ 1);
|
|
|
+ } else {
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
|
|
|
+ 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset,
|
|
|
+ pwrb, sge_len);
|
|
|
+ sg_len = sg_dma_len(sg);
|
|
|
+ addr = (u64) sg_dma_address(sg);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb,
|
|
|
+ (addr & 0xFFFFFFFF));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb,
|
|
|
+ (addr >> 32));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb,
|
|
|
+ sg_len);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
|
|
|
+ memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
|
|
|
+ io_task->bhs_pa.u.a32.address_hi);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
|
|
|
+ io_task->bhs_pa.u.a32.address_lo);
|
|
|
+
|
|
|
+ if (num_sg == 2)
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1);
|
|
|
+ sg = l_sg;
|
|
|
+ psgl++;
|
|
|
+ psgl++;
|
|
|
+ offset = 0;
|
|
|
+ for (index = 0; index < num_sg; index++, sg_next(sg), psgl++) {
|
|
|
+ sg_len = sg_dma_len(sg);
|
|
|
+ addr = (u64) sg_dma_address(sg);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
|
|
|
+ (addr & 0xFFFFFFFF));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
|
|
|
+ (addr >> 32));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
|
|
|
+ offset += sg_len;
|
|
|
+ }
|
|
|
+ psgl--;
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
|
|
|
+{
|
|
|
+ struct iscsi_sge *psgl;
|
|
|
+ unsigned long long addr;
|
|
|
+ struct beiscsi_io_task *io_task = task->dd_data;
|
|
|
+ struct beiscsi_conn *beiscsi_conn = io_task->conn;
|
|
|
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
|
|
|
+
|
|
|
+ io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2;
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
|
|
|
+ io_task->bhs_pa.u.a32.address_lo);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
|
|
|
+ io_task->bhs_pa.u.a32.address_hi);
|
|
|
+
|
|
|
+ if (task->data) {
|
|
|
+ if (task->data_count) {
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
|
|
|
+ addr = (u64) pci_map_single(phba->pcidev,
|
|
|
+ task->data,
|
|
|
+ task->data_count, 1);
|
|
|
+ } else {
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
|
|
|
+ addr = 0;
|
|
|
+ }
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
|
|
|
+ (addr & 0xFFFFFFFF));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
|
|
|
+ (addr >> 32));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
|
|
|
+ task->data_count);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1);
|
|
|
+ } else {
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
|
|
|
+ addr = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
|
|
|
+ io_task->bhs_pa.u.a32.address_hi);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
|
|
|
+ io_task->bhs_pa.u.a32.address_lo);
|
|
|
+ if (task->data) {
|
|
|
+ psgl++;
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
|
|
|
+
|
|
|
+ psgl++;
|
|
|
+ if (task->data) {
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
|
|
|
+ (addr & 0xFFFFFFFF));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
|
|
|
+ (addr >> 32));
|
|
|
+ }
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106);
|
|
|
+ }
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ unsigned int num_cq_pages, num_eq_pages, num_async_pdu_buf_pages;
|
|
|
+ unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
|
|
|
+ unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
|
|
|
+
|
|
|
+ num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
|
|
|
+ sizeof(struct sol_cqe));
|
|
|
+ num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
|
|
|
+ sizeof(struct be_eq_entry));
|
|
|
+ num_async_pdu_buf_pages =
|
|
|
+ PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
|
|
|
+ phba->params.defpdu_hdr_sz);
|
|
|
+ num_async_pdu_buf_sgl_pages =
|
|
|
+ PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
|
|
|
+ sizeof(struct phys_addr));
|
|
|
+ num_async_pdu_data_pages =
|
|
|
+ PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
|
|
|
+ phba->params.defpdu_data_sz);
|
|
|
+ num_async_pdu_data_sgl_pages =
|
|
|
+ PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
|
|
|
+ sizeof(struct phys_addr));
|
|
|
+
|
|
|
+ phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
|
|
|
+
|
|
|
+ phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 *
|
|
|
+ BE_ISCSI_PDU_HEADER_SIZE;
|
|
|
+ phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
|
|
|
+ sizeof(struct hwi_context_memory);
|
|
|
+
|
|
|
+ phba->mem_req[HWI_MEM_CQ] = num_cq_pages * PAGE_SIZE;
|
|
|
+ phba->mem_req[HWI_MEM_EQ] = num_eq_pages * PAGE_SIZE;
|
|
|
+
|
|
|
+ phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
|
|
|
+ * (phba->params.wrbs_per_cxn)
|
|
|
+ * phba->params.cxns_per_ctrl;
|
|
|
+ wrb_sz_per_cxn = sizeof(struct wrb_handle) *
|
|
|
+ (phba->params.wrbs_per_cxn);
|
|
|
+ phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) *
|
|
|
+ phba->params.cxns_per_ctrl);
|
|
|
+
|
|
|
+ phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) *
|
|
|
+ phba->params.icds_per_ctrl;
|
|
|
+ phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
|
|
|
+ phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
|
|
|
+
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] =
|
|
|
+ num_async_pdu_buf_pages * PAGE_SIZE;
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] =
|
|
|
+ num_async_pdu_data_pages * PAGE_SIZE;
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] =
|
|
|
+ num_async_pdu_buf_sgl_pages * PAGE_SIZE;
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_DATA_RING] =
|
|
|
+ num_async_pdu_data_sgl_pages * PAGE_SIZE;
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] =
|
|
|
+ phba->params.asyncpdus_per_ctrl *
|
|
|
+ sizeof(struct async_pdu_handle);
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] =
|
|
|
+ phba->params.asyncpdus_per_ctrl *
|
|
|
+ sizeof(struct async_pdu_handle);
|
|
|
+ phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] =
|
|
|
+ sizeof(struct hwi_async_pdu_context) +
|
|
|
+ (phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry));
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ dma_addr_t bus_add;
|
|
|
+ struct mem_array *mem_arr, *mem_arr_orig;
|
|
|
+ unsigned int i, j, alloc_size, curr_alloc_size;
|
|
|
+
|
|
|
+ phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL);
|
|
|
+ if (!phba->phwi_ctrlr)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr),
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!phba->init_mem) {
|
|
|
+ kfree(phba->phwi_ctrlr);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!mem_arr_orig) {
|
|
|
+ kfree(phba->init_mem);
|
|
|
+ kfree(phba->phwi_ctrlr);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ for (i = 0; i < SE_MEM_MAX; i++) {
|
|
|
+ j = 0;
|
|
|
+ mem_arr = mem_arr_orig;
|
|
|
+ alloc_size = phba->mem_req[i];
|
|
|
+ memset(mem_arr, 0, sizeof(struct mem_array) *
|
|
|
+ BEISCSI_MAX_FRAGS_INIT);
|
|
|
+ curr_alloc_size = min(be_max_phys_size * 1024, alloc_size);
|
|
|
+ do {
|
|
|
+ mem_arr->virtual_address = pci_alloc_consistent(
|
|
|
+ phba->pcidev,
|
|
|
+ curr_alloc_size,
|
|
|
+ &bus_add);
|
|
|
+ if (!mem_arr->virtual_address) {
|
|
|
+ if (curr_alloc_size <= BE_MIN_MEM_SIZE)
|
|
|
+ goto free_mem;
|
|
|
+ if (curr_alloc_size -
|
|
|
+ rounddown_pow_of_two(curr_alloc_size))
|
|
|
+ curr_alloc_size = rounddown_pow_of_two
|
|
|
+ (curr_alloc_size);
|
|
|
+ else
|
|
|
+ curr_alloc_size = curr_alloc_size / 2;
|
|
|
+ } else {
|
|
|
+ mem_arr->bus_address.u.
|
|
|
+ a64.address = (__u64) bus_add;
|
|
|
+ mem_arr->size = curr_alloc_size;
|
|
|
+ alloc_size -= curr_alloc_size;
|
|
|
+ curr_alloc_size = min(be_max_phys_size *
|
|
|
+ 1024, alloc_size);
|
|
|
+ j++;
|
|
|
+ mem_arr++;
|
|
|
+ }
|
|
|
+ } while (alloc_size);
|
|
|
+ mem_descr->num_elements = j;
|
|
|
+ mem_descr->size_in_bytes = phba->mem_req[i];
|
|
|
+ mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!mem_descr->mem_array)
|
|
|
+ goto free_mem;
|
|
|
+
|
|
|
+ memcpy(mem_descr->mem_array, mem_arr_orig,
|
|
|
+ sizeof(struct mem_array) * j);
|
|
|
+ mem_descr++;
|
|
|
+ }
|
|
|
+ kfree(mem_arr_orig);
|
|
|
+ return 0;
|
|
|
+free_mem:
|
|
|
+ mem_descr->num_elements = j;
|
|
|
+ while ((i) || (j)) {
|
|
|
+ for (j = mem_descr->num_elements; j > 0; j--) {
|
|
|
+ pci_free_consistent(phba->pcidev,
|
|
|
+ mem_descr->mem_array[j - 1].size,
|
|
|
+ mem_descr->mem_array[j - 1].
|
|
|
+ virtual_address,
|
|
|
+ mem_descr->mem_array[j - 1].
|
|
|
+ bus_address.u.a64.address);
|
|
|
+ }
|
|
|
+ if (i) {
|
|
|
+ i--;
|
|
|
+ kfree(mem_descr->mem_array);
|
|
|
+ mem_descr--;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ kfree(mem_arr_orig);
|
|
|
+ kfree(phba->init_mem);
|
|
|
+ kfree(phba->phwi_ctrlr);
|
|
|
+ return -ENOMEM;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_get_memory(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ beiscsi_find_mem_req(phba);
|
|
|
+ return beiscsi_alloc_mem(phba);
|
|
|
+}
|
|
|
+
|
|
|
+static void iscsi_init_global_templates(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct pdu_data_out *pdata_out;
|
|
|
+ struct pdu_nop_out *pnop_out;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += ISCSI_MEM_GLOBAL_HEADER;
|
|
|
+ pdata_out =
|
|
|
+ (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address;
|
|
|
+ memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out,
|
|
|
+ IIOC_SCSI_DATA);
|
|
|
+
|
|
|
+ pnop_out =
|
|
|
+ (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0].
|
|
|
+ virtual_address + BE_ISCSI_PDU_HEADER_SIZE);
|
|
|
+
|
|
|
+ memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF);
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1);
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0);
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb;
|
|
|
+ struct wrb_handle *pwrb_handle;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+ struct iscsi_wrb *pwrb;
|
|
|
+ unsigned int num_cxn_wrbh;
|
|
|
+ unsigned int num_cxn_wrb, j, idx, index;
|
|
|
+
|
|
|
+ mem_descr_wrbh = phba->init_mem;
|
|
|
+ mem_descr_wrbh += HWI_MEM_WRBH;
|
|
|
+
|
|
|
+ mem_descr_wrb = phba->init_mem;
|
|
|
+ mem_descr_wrb += HWI_MEM_WRB;
|
|
|
+
|
|
|
+ idx = 0;
|
|
|
+ pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address;
|
|
|
+ num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) /
|
|
|
+ ((sizeof(struct wrb_handle)) *
|
|
|
+ phba->params.wrbs_per_cxn));
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+
|
|
|
+ for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[index];
|
|
|
+ SE_DEBUG(DBG_LVL_8, "cid=%d pwrb_context=%p \n", index,
|
|
|
+ pwrb_context);
|
|
|
+ pwrb_context->pwrb_handle_base =
|
|
|
+ kzalloc(sizeof(struct wrb_handle *) *
|
|
|
+ phba->params.wrbs_per_cxn, GFP_KERNEL);
|
|
|
+ pwrb_context->pwrb_handle_basestd =
|
|
|
+ kzalloc(sizeof(struct wrb_handle *) *
|
|
|
+ phba->params.wrbs_per_cxn, GFP_KERNEL);
|
|
|
+ if (num_cxn_wrbh) {
|
|
|
+ pwrb_context->alloc_index = 0;
|
|
|
+ pwrb_context->wrb_handles_available = 0;
|
|
|
+ for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
|
|
|
+ pwrb_context->pwrb_handle_base[j] = pwrb_handle;
|
|
|
+ pwrb_context->pwrb_handle_basestd[j] =
|
|
|
+ pwrb_handle;
|
|
|
+ pwrb_context->wrb_handles_available++;
|
|
|
+ pwrb_handle++;
|
|
|
+ }
|
|
|
+ pwrb_context->free_index = 0;
|
|
|
+ num_cxn_wrbh--;
|
|
|
+ } else {
|
|
|
+ idx++;
|
|
|
+ pwrb_handle =
|
|
|
+ mem_descr_wrbh->mem_array[idx].virtual_address;
|
|
|
+ num_cxn_wrbh =
|
|
|
+ ((mem_descr_wrbh->mem_array[idx].size) /
|
|
|
+ ((sizeof(struct wrb_handle)) *
|
|
|
+ phba->params.wrbs_per_cxn));
|
|
|
+ pwrb_context->alloc_index = 0;
|
|
|
+ for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
|
|
|
+ pwrb_context->pwrb_handle_base[j] = pwrb_handle;
|
|
|
+ pwrb_context->pwrb_handle_basestd[j] =
|
|
|
+ pwrb_handle;
|
|
|
+ pwrb_context->wrb_handles_available++;
|
|
|
+ pwrb_handle++;
|
|
|
+ }
|
|
|
+ pwrb_context->free_index = 0;
|
|
|
+ num_cxn_wrbh--;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ idx = 0;
|
|
|
+ pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
|
|
|
+ num_cxn_wrb =
|
|
|
+ ((mem_descr_wrb->mem_array[idx].size) / (sizeof(struct iscsi_wrb)) *
|
|
|
+ phba->params.wrbs_per_cxn);
|
|
|
+
|
|
|
+ for (index = 0; index < phba->params.cxns_per_ctrl; index += 2) {
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[index];
|
|
|
+ if (num_cxn_wrb) {
|
|
|
+ for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
|
|
|
+ pwrb_handle = pwrb_context->pwrb_handle_base[j];
|
|
|
+ pwrb_handle->pwrb = pwrb;
|
|
|
+ pwrb++;
|
|
|
+ }
|
|
|
+ num_cxn_wrb--;
|
|
|
+ } else {
|
|
|
+ idx++;
|
|
|
+ pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
|
|
|
+ num_cxn_wrb = ((mem_descr_wrb->mem_array[idx].size) /
|
|
|
+ (sizeof(struct iscsi_wrb)) *
|
|
|
+ phba->params.wrbs_per_cxn);
|
|
|
+ for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
|
|
|
+ pwrb_handle = pwrb_context->pwrb_handle_base[j];
|
|
|
+ pwrb_handle->pwrb = pwrb;
|
|
|
+ pwrb++;
|
|
|
+ }
|
|
|
+ num_cxn_wrb--;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hba_parameters *p = &phba->params;
|
|
|
+ struct hwi_async_pdu_context *pasync_ctx;
|
|
|
+ struct async_pdu_handle *pasync_header_h, *pasync_data_h;
|
|
|
+ unsigned int index;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *)
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+ pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx;
|
|
|
+ memset(pasync_ctx, 0, sizeof(*pasync_ctx));
|
|
|
+
|
|
|
+ pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl;
|
|
|
+ pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz;
|
|
|
+ pasync_ctx->async_data.buffer_size = p->defpdu_data_sz;
|
|
|
+ pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl;
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_HEADER_BUF;
|
|
|
+ if (mem_descr->mem_array[0].virtual_address) {
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF"
|
|
|
+ "va=%p \n", mem_descr->mem_array[0].virtual_address);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "No Virtual address \n");
|
|
|
+
|
|
|
+ pasync_ctx->async_header.va_base =
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+
|
|
|
+ pasync_ctx->async_header.pa_base.u.a64.address =
|
|
|
+ mem_descr->mem_array[0].bus_address.u.a64.address;
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_HEADER_RING;
|
|
|
+ if (mem_descr->mem_array[0].virtual_address) {
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING"
|
|
|
+ "va=%p \n", mem_descr->mem_array[0].virtual_address);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "No Virtual address \n");
|
|
|
+ pasync_ctx->async_header.ring_base =
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE;
|
|
|
+ if (mem_descr->mem_array[0].virtual_address) {
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE"
|
|
|
+ "va=%p \n", mem_descr->mem_array[0].virtual_address);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "No Virtual address \n");
|
|
|
+
|
|
|
+ pasync_ctx->async_header.handle_base =
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+ pasync_ctx->async_header.writables = 0;
|
|
|
+ INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_DATA_BUF;
|
|
|
+ if (mem_descr->mem_array[0].virtual_address) {
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF"
|
|
|
+ "va=%p \n", mem_descr->mem_array[0].virtual_address);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "No Virtual address \n");
|
|
|
+ pasync_ctx->async_data.va_base =
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+ pasync_ctx->async_data.pa_base.u.a64.address =
|
|
|
+ mem_descr->mem_array[0].bus_address.u.a64.address;
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_DATA_RING;
|
|
|
+ if (mem_descr->mem_array[0].virtual_address) {
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING"
|
|
|
+ "va=%p \n", mem_descr->mem_array[0].virtual_address);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "No Virtual address \n");
|
|
|
+
|
|
|
+ pasync_ctx->async_data.ring_base =
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+
|
|
|
+ mem_descr = (struct be_mem_descriptor *)phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_DATA_HANDLE;
|
|
|
+ if (!mem_descr->mem_array[0].virtual_address)
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "No Virtual address \n");
|
|
|
+
|
|
|
+ pasync_ctx->async_data.handle_base =
|
|
|
+ mem_descr->mem_array[0].virtual_address;
|
|
|
+ pasync_ctx->async_data.writables = 0;
|
|
|
+ INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
|
|
|
+
|
|
|
+ pasync_header_h =
|
|
|
+ (struct async_pdu_handle *)pasync_ctx->async_header.handle_base;
|
|
|
+ pasync_data_h =
|
|
|
+ (struct async_pdu_handle *)pasync_ctx->async_data.handle_base;
|
|
|
+
|
|
|
+ for (index = 0; index < p->asyncpdus_per_ctrl; index++) {
|
|
|
+ pasync_header_h->cri = -1;
|
|
|
+ pasync_header_h->index = (char)index;
|
|
|
+ INIT_LIST_HEAD(&pasync_header_h->link);
|
|
|
+ pasync_header_h->pbuffer =
|
|
|
+ (void *)((unsigned long)
|
|
|
+ (pasync_ctx->async_header.va_base) +
|
|
|
+ (p->defpdu_hdr_sz * index));
|
|
|
+
|
|
|
+ pasync_header_h->pa.u.a64.address =
|
|
|
+ pasync_ctx->async_header.pa_base.u.a64.address +
|
|
|
+ (p->defpdu_hdr_sz * index);
|
|
|
+
|
|
|
+ list_add_tail(&pasync_header_h->link,
|
|
|
+ &pasync_ctx->async_header.free_list);
|
|
|
+ pasync_header_h++;
|
|
|
+ pasync_ctx->async_header.free_entries++;
|
|
|
+ pasync_ctx->async_header.writables++;
|
|
|
+
|
|
|
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list);
|
|
|
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
|
|
|
+ header_busy_list);
|
|
|
+ pasync_data_h->cri = -1;
|
|
|
+ pasync_data_h->index = (char)index;
|
|
|
+ INIT_LIST_HEAD(&pasync_data_h->link);
|
|
|
+ pasync_data_h->pbuffer =
|
|
|
+ (void *)((unsigned long)
|
|
|
+ (pasync_ctx->async_data.va_base) +
|
|
|
+ (p->defpdu_data_sz * index));
|
|
|
+
|
|
|
+ pasync_data_h->pa.u.a64.address =
|
|
|
+ pasync_ctx->async_data.pa_base.u.a64.address +
|
|
|
+ (p->defpdu_data_sz * index);
|
|
|
+
|
|
|
+ list_add_tail(&pasync_data_h->link,
|
|
|
+ &pasync_ctx->async_data.free_list);
|
|
|
+ pasync_data_h++;
|
|
|
+ pasync_ctx->async_data.free_entries++;
|
|
|
+ pasync_ctx->async_data.writables++;
|
|
|
+
|
|
|
+ INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list);
|
|
|
+ }
|
|
|
+
|
|
|
+ pasync_ctx->async_header.host_write_ptr = 0;
|
|
|
+ pasync_ctx->async_header.ep_read_ptr = -1;
|
|
|
+ pasync_ctx->async_data.host_write_ptr = 0;
|
|
|
+ pasync_ctx->async_data.ep_read_ptr = -1;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+be_sgl_create_contiguous(void *virtual_address,
|
|
|
+ u64 physical_address, u32 length,
|
|
|
+ struct be_dma_mem *sgl)
|
|
|
+{
|
|
|
+ WARN_ON(!virtual_address);
|
|
|
+ WARN_ON(!physical_address);
|
|
|
+ WARN_ON(!length > 0);
|
|
|
+ WARN_ON(!sgl);
|
|
|
+
|
|
|
+ sgl->va = virtual_address;
|
|
|
+ sgl->dma = physical_address;
|
|
|
+ sgl->size = length;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl)
|
|
|
+{
|
|
|
+ memset(sgl, 0, sizeof(*sgl));
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+hwi_build_be_sgl_arr(struct beiscsi_hba *phba,
|
|
|
+ struct mem_array *pmem, struct be_dma_mem *sgl)
|
|
|
+{
|
|
|
+ if (sgl->va)
|
|
|
+ be_sgl_destroy_contiguous(sgl);
|
|
|
+
|
|
|
+ be_sgl_create_contiguous(pmem->virtual_address,
|
|
|
+ pmem->bus_address.u.a64.address,
|
|
|
+ pmem->size, sgl);
|
|
|
+}
|
|
|
+
|
|
|
+static void
|
|
|
+hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba,
|
|
|
+ struct mem_array *pmem, struct be_dma_mem *sgl)
|
|
|
+{
|
|
|
+ if (sgl->va)
|
|
|
+ be_sgl_destroy_contiguous(sgl);
|
|
|
+
|
|
|
+ be_sgl_create_contiguous((unsigned char *)pmem->virtual_address,
|
|
|
+ pmem->bus_address.u.a64.address,
|
|
|
+ pmem->size, sgl);
|
|
|
+}
|
|
|
+
|
|
|
+static int be_fill_queue(struct be_queue_info *q,
|
|
|
+ u16 len, u16 entry_size, void *vaddress)
|
|
|
+{
|
|
|
+ struct be_dma_mem *mem = &q->dma_mem;
|
|
|
+
|
|
|
+ memset(q, 0, sizeof(*q));
|
|
|
+ q->len = len;
|
|
|
+ q->entry_size = entry_size;
|
|
|
+ mem->size = len * entry_size;
|
|
|
+ mem->va = vaddress;
|
|
|
+ if (!mem->va)
|
|
|
+ return -ENOMEM;
|
|
|
+ memset(mem->va, 0, mem->size);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_create_eq(struct beiscsi_hba *phba,
|
|
|
+ struct hwi_context_memory *phwi_context)
|
|
|
+{
|
|
|
+ unsigned int idx;
|
|
|
+ int ret;
|
|
|
+ struct be_queue_info *eq;
|
|
|
+ struct be_dma_mem *mem;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ void *eq_vaddress;
|
|
|
+
|
|
|
+ idx = 0;
|
|
|
+ eq = &phwi_context->be_eq.q;
|
|
|
+ mem = &eq->dma_mem;
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_EQ;
|
|
|
+ eq_vaddress = mem_descr->mem_array[idx].virtual_address;
|
|
|
+
|
|
|
+ ret = be_fill_queue(eq, phba->params.num_eq_entries,
|
|
|
+ sizeof(struct be_eq_entry), eq_vaddress);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "be_fill_queue Failed for EQ \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+
|
|
|
+ mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
|
|
|
+
|
|
|
+ ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
|
|
|
+ phwi_context->be_eq.cur_eqd);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_cmd_eq_create"
|
|
|
+ "Failedfor EQ \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ SE_DEBUG(DBG_LVL_8, "eq id is %d\n", phwi_context->be_eq.q.id);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_create_cq(struct beiscsi_hba *phba,
|
|
|
+ struct hwi_context_memory *phwi_context)
|
|
|
+{
|
|
|
+ unsigned int idx;
|
|
|
+ int ret;
|
|
|
+ struct be_queue_info *cq, *eq;
|
|
|
+ struct be_dma_mem *mem;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ void *cq_vaddress;
|
|
|
+
|
|
|
+ idx = 0;
|
|
|
+ cq = &phwi_context->be_cq;
|
|
|
+ eq = &phwi_context->be_eq.q;
|
|
|
+ mem = &cq->dma_mem;
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_CQ;
|
|
|
+ cq_vaddress = mem_descr->mem_array[idx].virtual_address;
|
|
|
+ ret = be_fill_queue(cq, phba->params.icds_per_ctrl / 2,
|
|
|
+ sizeof(struct sol_cqe), cq_vaddress);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "be_fill_queue Failed for ISCSI CQ \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+
|
|
|
+ mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
|
|
|
+ ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, false, 0);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "beiscsi_cmd_eq_create Failed for ISCSI CQ \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ SE_DEBUG(DBG_LVL_8, "iscsi cq id is %d\n", phwi_context->be_cq.id);
|
|
|
+ SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n");
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+beiscsi_create_def_hdr(struct beiscsi_hba *phba,
|
|
|
+ struct hwi_context_memory *phwi_context,
|
|
|
+ struct hwi_controller *phwi_ctrlr,
|
|
|
+ unsigned int def_pdu_ring_sz)
|
|
|
+{
|
|
|
+ unsigned int idx;
|
|
|
+ int ret;
|
|
|
+ struct be_queue_info *dq, *cq;
|
|
|
+ struct be_dma_mem *mem;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ void *dq_vaddress;
|
|
|
+
|
|
|
+ idx = 0;
|
|
|
+ dq = &phwi_context->be_def_hdrq;
|
|
|
+ cq = &phwi_context->be_cq;
|
|
|
+ mem = &dq->dma_mem;
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_HEADER_RING;
|
|
|
+ dq_vaddress = mem_descr->mem_array[idx].virtual_address;
|
|
|
+ ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
|
|
|
+ sizeof(struct phys_addr),
|
|
|
+ sizeof(struct phys_addr), dq_vaddress);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "be_fill_queue Failed for DEF PDU HDR\n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
|
|
|
+ ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
|
|
|
+ def_pdu_ring_sz,
|
|
|
+ phba->params.defpdu_hdr_sz);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "be_cmd_create_default_pdu_queue Failed DEFHDR\n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n",
|
|
|
+ phwi_context->be_def_hdrq.id);
|
|
|
+ hwi_post_async_buffers(phba, 1);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+beiscsi_create_def_data(struct beiscsi_hba *phba,
|
|
|
+ struct hwi_context_memory *phwi_context,
|
|
|
+ struct hwi_controller *phwi_ctrlr,
|
|
|
+ unsigned int def_pdu_ring_sz)
|
|
|
+{
|
|
|
+ unsigned int idx;
|
|
|
+ int ret;
|
|
|
+ struct be_queue_info *dataq, *cq;
|
|
|
+ struct be_dma_mem *mem;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ void *dq_vaddress;
|
|
|
+
|
|
|
+ idx = 0;
|
|
|
+ dataq = &phwi_context->be_def_dataq;
|
|
|
+ cq = &phwi_context->be_cq;
|
|
|
+ mem = &dataq->dma_mem;
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_ASYNC_DATA_RING;
|
|
|
+ dq_vaddress = mem_descr->mem_array[idx].virtual_address;
|
|
|
+ ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
|
|
|
+ sizeof(struct phys_addr),
|
|
|
+ sizeof(struct phys_addr), dq_vaddress);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "be_fill_queue Failed for DEF PDU DATA\n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
|
|
|
+ ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
|
|
|
+ def_pdu_ring_sz,
|
|
|
+ phba->params.defpdu_data_sz);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "be_cmd_create_default_pdu_queue Failed"
|
|
|
+ " for DEF PDU DATA\n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n",
|
|
|
+ phwi_context->be_def_dataq.id);
|
|
|
+ hwi_post_async_buffers(phba, 0);
|
|
|
+ SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED \n");
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+beiscsi_post_pages(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ struct mem_array *pm_arr;
|
|
|
+ unsigned int page_offset, i;
|
|
|
+ struct be_dma_mem sgl;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_SGE;
|
|
|
+ pm_arr = mem_descr->mem_array;
|
|
|
+
|
|
|
+ page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
|
|
|
+ phba->fw_config.iscsi_icd_start) / PAGE_SIZE;
|
|
|
+ for (i = 0; i < mem_descr->num_elements; i++) {
|
|
|
+ hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
|
|
|
+ status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
|
|
|
+ page_offset,
|
|
|
+ (pm_arr->size / PAGE_SIZE));
|
|
|
+ page_offset += pm_arr->size / PAGE_SIZE;
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "post sgl failed.\n");
|
|
|
+ return status;
|
|
|
+ }
|
|
|
+ pm_arr++;
|
|
|
+ }
|
|
|
+ SE_DEBUG(DBG_LVL_8, "POSTED PAGES \n");
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int
|
|
|
+beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
|
|
|
+ struct hwi_context_memory *phwi_context,
|
|
|
+ struct hwi_controller *phwi_ctrlr)
|
|
|
+{
|
|
|
+ unsigned int wrb_mem_index, offset, size, num_wrb_rings;
|
|
|
+ u64 pa_addr_lo;
|
|
|
+ unsigned int idx, num, i;
|
|
|
+ struct mem_array *pwrb_arr;
|
|
|
+ void *wrb_vaddr;
|
|
|
+ struct be_dma_mem sgl;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ idx = 0;
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += HWI_MEM_WRB;
|
|
|
+ pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!pwrb_arr) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Memory alloc failed in create wrb ring.\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
|
|
|
+ pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address;
|
|
|
+ num_wrb_rings = mem_descr->mem_array[idx].size /
|
|
|
+ (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb));
|
|
|
+
|
|
|
+ for (num = 0; num < phba->params.cxns_per_ctrl; num++) {
|
|
|
+ if (num_wrb_rings) {
|
|
|
+ pwrb_arr[num].virtual_address = wrb_vaddr;
|
|
|
+ pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo;
|
|
|
+ pwrb_arr[num].size = phba->params.wrbs_per_cxn *
|
|
|
+ sizeof(struct iscsi_wrb);
|
|
|
+ wrb_vaddr += pwrb_arr[num].size;
|
|
|
+ pa_addr_lo += pwrb_arr[num].size;
|
|
|
+ num_wrb_rings--;
|
|
|
+ } else {
|
|
|
+ idx++;
|
|
|
+ wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
|
|
|
+ pa_addr_lo = mem_descr->mem_array[idx].\
|
|
|
+ bus_address.u.a64.address;
|
|
|
+ num_wrb_rings = mem_descr->mem_array[idx].size /
|
|
|
+ (phba->params.wrbs_per_cxn *
|
|
|
+ sizeof(struct iscsi_wrb));
|
|
|
+ pwrb_arr[num].virtual_address = wrb_vaddr;
|
|
|
+ pwrb_arr[num].bus_address.u.a64.address\
|
|
|
+ = pa_addr_lo;
|
|
|
+ pwrb_arr[num].size = phba->params.wrbs_per_cxn *
|
|
|
+ sizeof(struct iscsi_wrb);
|
|
|
+ wrb_vaddr += pwrb_arr[num].size;
|
|
|
+ pa_addr_lo += pwrb_arr[num].size;
|
|
|
+ num_wrb_rings--;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
|
|
|
+ wrb_mem_index = 0;
|
|
|
+ offset = 0;
|
|
|
+ size = 0;
|
|
|
+
|
|
|
+ hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
|
|
|
+ status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
|
|
|
+ &phwi_context->be_wrbq[i]);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "wrbq create failed.");
|
|
|
+ return status;
|
|
|
+ }
|
|
|
+ phwi_ctrlr->wrb_context[i].cid = phwi_context->be_wrbq[i].id;
|
|
|
+ }
|
|
|
+ kfree(pwrb_arr);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void free_wrb_handles(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ unsigned int index;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[index];
|
|
|
+ kfree(pwrb_context->pwrb_handle_base);
|
|
|
+ kfree(pwrb_context->pwrb_handle_basestd);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_cleanup(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_queue_info *q;
|
|
|
+ struct be_ctrl_info *ctrl = &phba->ctrl;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
|
|
|
+ q = &phwi_context->be_wrbq[i];
|
|
|
+ if (q->created)
|
|
|
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
|
|
|
+ }
|
|
|
+
|
|
|
+ free_wrb_handles(phba);
|
|
|
+
|
|
|
+ q = &phwi_context->be_def_hdrq;
|
|
|
+ if (q->created)
|
|
|
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
|
|
|
+
|
|
|
+ q = &phwi_context->be_def_dataq;
|
|
|
+ if (q->created)
|
|
|
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
|
|
|
+
|
|
|
+ beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
|
|
|
+
|
|
|
+ q = &phwi_context->be_cq;
|
|
|
+ if (q->created)
|
|
|
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
|
|
|
+
|
|
|
+ q = &phwi_context->be_eq.q;
|
|
|
+ if (q->created)
|
|
|
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
|
|
|
+}
|
|
|
+
|
|
|
+static int hwi_init_port(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+ unsigned int def_pdu_ring_sz;
|
|
|
+ struct be_ctrl_info *ctrl = &phba->ctrl;
|
|
|
+ int status;
|
|
|
+
|
|
|
+ def_pdu_ring_sz =
|
|
|
+ phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr);
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+ phwi_context->be_eq.max_eqd = 0;
|
|
|
+ phwi_context->be_eq.min_eqd = 0;
|
|
|
+ phwi_context->be_eq.cur_eqd = 64;
|
|
|
+ phwi_context->be_eq.enable_aic = false;
|
|
|
+ be_cmd_fw_initialize(&phba->ctrl);
|
|
|
+ status = beiscsi_create_eq(phba, phwi_context);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "EQ not created \n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = mgmt_check_supported_fw(ctrl);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Unsupported fw version \n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = mgmt_get_fw_config(ctrl, phba);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Error getting fw config\n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = beiscsi_create_cq(phba, phwi_context);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "CQ not created\n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr,
|
|
|
+ def_pdu_ring_sz);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Default Header not created\n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = beiscsi_create_def_data(phba, phwi_context,
|
|
|
+ phwi_ctrlr, def_pdu_ring_sz);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Default Data not created\n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = beiscsi_post_pages(phba);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr);
|
|
|
+ if (status != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "WRB Rings not created\n");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n");
|
|
|
+ return 0;
|
|
|
+
|
|
|
+error:
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed");
|
|
|
+ hwi_cleanup(phba);
|
|
|
+ return -ENOMEM;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+static int hwi_init_controller(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
|
|
|
+ phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
|
|
|
+ init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
|
|
|
+ SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p \n",
|
|
|
+ phwi_ctrlr->phwi_ctxt);
|
|
|
+ } else {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "HWI_MEM_ADDN_CONTEXT is more than one element."
|
|
|
+ "Failing to load\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ iscsi_init_global_templates(phba);
|
|
|
+ beiscsi_init_wrb_handle(phba);
|
|
|
+ hwi_init_async_pdu_ctx(phba);
|
|
|
+ if (hwi_init_port(phba) != 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "hwi_init_controller failed\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_free_mem(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ int i, j;
|
|
|
+
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ i = 0;
|
|
|
+ j = 0;
|
|
|
+ for (i = 0; i < SE_MEM_MAX; i++) {
|
|
|
+ for (j = mem_descr->num_elements; j > 0; j--) {
|
|
|
+ pci_free_consistent(phba->pcidev,
|
|
|
+ mem_descr->mem_array[j - 1].size,
|
|
|
+ mem_descr->mem_array[j - 1].virtual_address,
|
|
|
+ mem_descr->mem_array[j - 1].bus_address.
|
|
|
+ u.a64.address);
|
|
|
+ }
|
|
|
+ kfree(mem_descr->mem_array);
|
|
|
+ mem_descr++;
|
|
|
+ }
|
|
|
+ kfree(phba->init_mem);
|
|
|
+ kfree(phba->phwi_ctrlr);
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_init_controller(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ int ret = -ENOMEM;
|
|
|
+
|
|
|
+ ret = beiscsi_get_memory(phba);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -"
|
|
|
+ "Failed in beiscsi_alloc_memory \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = hwi_init_controller(phba);
|
|
|
+ if (ret)
|
|
|
+ goto free_init;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller");
|
|
|
+ return 0;
|
|
|
+
|
|
|
+free_init:
|
|
|
+ beiscsi_free_mem(phba);
|
|
|
+ return -ENOMEM;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
|
|
|
+ struct sgl_handle *psgl_handle;
|
|
|
+ struct iscsi_sge *pfrag;
|
|
|
+ unsigned int arr_index, i, idx;
|
|
|
+
|
|
|
+ phba->io_sgl_hndl_avbl = 0;
|
|
|
+ phba->eh_sgl_hndl_avbl = 0;
|
|
|
+ mem_descr_sglh = phba->init_mem;
|
|
|
+ mem_descr_sglh += HWI_MEM_SGLH;
|
|
|
+ if (1 == mem_descr_sglh->num_elements) {
|
|
|
+ phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
|
|
|
+ phba->params.ios_per_ctrl,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!phba->io_sgl_hndl_base) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Mem Alloc Failed. Failing to load\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
|
|
|
+ (phba->params.icds_per_ctrl -
|
|
|
+ phba->params.ios_per_ctrl),
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!phba->eh_sgl_hndl_base) {
|
|
|
+ kfree(phba->io_sgl_hndl_base);
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Mem Alloc Failed. Failing to load\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "HWI_MEM_SGLH is more than one element."
|
|
|
+ "Failing to load\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ arr_index = 0;
|
|
|
+ idx = 0;
|
|
|
+ while (idx < mem_descr_sglh->num_elements) {
|
|
|
+ psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address;
|
|
|
+
|
|
|
+ for (i = 0; i < (mem_descr_sglh->mem_array[idx].size /
|
|
|
+ sizeof(struct sgl_handle)); i++) {
|
|
|
+ if (arr_index < phba->params.ios_per_ctrl) {
|
|
|
+ phba->io_sgl_hndl_base[arr_index] = psgl_handle;
|
|
|
+ phba->io_sgl_hndl_avbl++;
|
|
|
+ arr_index++;
|
|
|
+ } else {
|
|
|
+ phba->eh_sgl_hndl_base[arr_index -
|
|
|
+ phba->params.ios_per_ctrl] =
|
|
|
+ psgl_handle;
|
|
|
+ arr_index++;
|
|
|
+ phba->eh_sgl_hndl_avbl++;
|
|
|
+ }
|
|
|
+ psgl_handle++;
|
|
|
+ }
|
|
|
+ idx++;
|
|
|
+ }
|
|
|
+ SE_DEBUG(DBG_LVL_8,
|
|
|
+ "phba->io_sgl_hndl_avbl=%d"
|
|
|
+ "phba->eh_sgl_hndl_avbl=%d \n",
|
|
|
+ phba->io_sgl_hndl_avbl,
|
|
|
+ phba->eh_sgl_hndl_avbl);
|
|
|
+ mem_descr_sg = phba->init_mem;
|
|
|
+ mem_descr_sg += HWI_MEM_SGE;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d \n",
|
|
|
+ mem_descr_sg->num_elements);
|
|
|
+ arr_index = 0;
|
|
|
+ idx = 0;
|
|
|
+ while (idx < mem_descr_sg->num_elements) {
|
|
|
+ pfrag = mem_descr_sg->mem_array[idx].virtual_address;
|
|
|
+
|
|
|
+ for (i = 0;
|
|
|
+ i < (mem_descr_sg->mem_array[idx].size) /
|
|
|
+ (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io);
|
|
|
+ i++) {
|
|
|
+ if (arr_index < phba->params.ios_per_ctrl)
|
|
|
+ psgl_handle = phba->io_sgl_hndl_base[arr_index];
|
|
|
+ else
|
|
|
+ psgl_handle = phba->eh_sgl_hndl_base[arr_index -
|
|
|
+ phba->params.ios_per_ctrl];
|
|
|
+ psgl_handle->pfrag = pfrag;
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
|
|
|
+ pfrag += phba->params.num_sge_per_io;
|
|
|
+ psgl_handle->sgl_index =
|
|
|
+ phba->fw_config.iscsi_cid_start + arr_index++;
|
|
|
+ }
|
|
|
+ idx++;
|
|
|
+ }
|
|
|
+ phba->io_sgl_free_index = 0;
|
|
|
+ phba->io_sgl_alloc_index = 0;
|
|
|
+ phba->eh_sgl_free_index = 0;
|
|
|
+ phba->eh_sgl_alloc_index = 0;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ int i, new_cid;
|
|
|
+
|
|
|
+ phba->cid_array = kmalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!phba->cid_array) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Failed to allocate memory in "
|
|
|
+ "hba_setup_cid_tbls\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ phba->ep_array = kmalloc(sizeof(struct iscsi_endpoint *) *
|
|
|
+ phba->params.cxns_per_ctrl * 2, GFP_KERNEL);
|
|
|
+ if (!phba->ep_array) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Failed to allocate memory in "
|
|
|
+ "hba_setup_cid_tbls \n");
|
|
|
+ kfree(phba->cid_array);
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ new_cid = phba->fw_config.iscsi_icd_start;
|
|
|
+ for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
|
|
|
+ phba->cid_array[i] = new_cid;
|
|
|
+ new_cid += 2;
|
|
|
+ }
|
|
|
+ phba->avlbl_cids = phba->params.cxns_per_ctrl;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static unsigned char hwi_enable_intr(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_ctrl_info *ctrl = &phba->ctrl;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+ struct be_queue_info *eq;
|
|
|
+ u8 __iomem *addr;
|
|
|
+ u32 reg;
|
|
|
+ u32 enabled;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+
|
|
|
+ eq = &phwi_context->be_eq.q;
|
|
|
+ addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
|
|
|
+ PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
|
|
|
+ reg = ioread32(addr);
|
|
|
+ SE_DEBUG(DBG_LVL_8, "reg =x%08x \n", reg);
|
|
|
+
|
|
|
+ enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
|
|
|
+ if (!enabled) {
|
|
|
+ reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
|
|
|
+ SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr);
|
|
|
+ iowrite32(reg, addr);
|
|
|
+ SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id);
|
|
|
+
|
|
|
+ hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "In hwi_enable_intr, Not Enabled \n");
|
|
|
+ return true;
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_disable_intr(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct be_ctrl_info *ctrl = &phba->ctrl;
|
|
|
+
|
|
|
+ u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
|
|
|
+ u32 reg = ioread32(addr);
|
|
|
+
|
|
|
+ u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
|
|
|
+ if (enabled) {
|
|
|
+ reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
|
|
|
+ iowrite32(reg, addr);
|
|
|
+ } else
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "In hwi_disable_intr, Already Disabled \n");
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_init_port(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret = beiscsi_init_controller(phba);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "beiscsi_dev_probe - Failed in"
|
|
|
+ "beiscsi_init_controller \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+ ret = beiscsi_init_sgl_handle(phba);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "beiscsi_dev_probe - Failed in"
|
|
|
+ "beiscsi_init_sgl_handle \n");
|
|
|
+ goto do_cleanup_ctrlr;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (hba_setup_cid_tbls(phba)) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost,
|
|
|
+ "Failed in hba_setup_cid_tbls\n");
|
|
|
+ kfree(phba->io_sgl_hndl_base);
|
|
|
+ kfree(phba->eh_sgl_hndl_base);
|
|
|
+ goto do_cleanup_ctrlr;
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret;
|
|
|
+
|
|
|
+do_cleanup_ctrlr:
|
|
|
+ hwi_cleanup(phba);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void hwi_purge_eq(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ struct hwi_context_memory *phwi_context;
|
|
|
+ struct be_queue_info *eq;
|
|
|
+ struct be_eq_entry *eqe = NULL;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ phwi_context = phwi_ctrlr->phwi_ctxt;
|
|
|
+ eq = &phwi_context->be_eq.q;
|
|
|
+ eqe = queue_tail_node(eq);
|
|
|
+
|
|
|
+ while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
|
|
|
+ & EQE_VALID_MASK) {
|
|
|
+ AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
|
|
|
+ queue_tail_inc(eq);
|
|
|
+ eqe = queue_tail_node(eq);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_clean_port(struct beiscsi_hba *phba)
|
|
|
+{
|
|
|
+ unsigned char mgmt_status;
|
|
|
+
|
|
|
+ mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0);
|
|
|
+ if (mgmt_status)
|
|
|
+ shost_printk(KERN_WARNING, phba->shost,
|
|
|
+ "mgmt_epfw_cleanup FAILED \n");
|
|
|
+ hwi_cleanup(phba);
|
|
|
+ hwi_purge_eq(phba);
|
|
|
+ kfree(phba->io_sgl_hndl_base);
|
|
|
+ kfree(phba->eh_sgl_hndl_base);
|
|
|
+ kfree(phba->cid_array);
|
|
|
+ kfree(phba->ep_array);
|
|
|
+}
|
|
|
+
|
|
|
+void
|
|
|
+beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
|
|
|
+ struct beiscsi_offload_params *params)
|
|
|
+{
|
|
|
+ struct wrb_handle *pwrb_handle;
|
|
|
+ struct iscsi_target_context_update_wrb *pwrb = NULL;
|
|
|
+ struct be_mem_descriptor *mem_descr;
|
|
|
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
|
|
|
+ u32 doorbell = 0;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * We can always use 0 here because it is reserved by libiscsi for
|
|
|
+ * login/startup related tasks.
|
|
|
+ */
|
|
|
+ pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid, 0);
|
|
|
+ pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb;
|
|
|
+ memset(pwrb, 0, sizeof(*pwrb));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
|
|
|
+ max_burst_length, pwrb, params->dw[offsetof
|
|
|
+ (struct amap_beiscsi_offload_params,
|
|
|
+ max_burst_length) / 32]);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
|
|
|
+ max_send_data_segment_length, pwrb,
|
|
|
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ max_send_data_segment_length) / 32]);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
|
|
|
+ first_burst_length,
|
|
|
+ pwrb,
|
|
|
+ params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ first_burst_length) / 32]);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
|
|
|
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ erl) / 32] & OFFLD_PARAMS_ERL));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
|
|
|
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
|
|
|
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
|
|
|
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
|
|
|
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
|
|
|
+ pwrb,
|
|
|
+ (params->dw[offsetof(struct amap_beiscsi_offload_params,
|
|
|
+ exp_statsn) / 32] + 1));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
|
|
|
+ 0x7);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
|
|
|
+ pwrb, pwrb_handle->wrb_index);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
|
|
|
+ pwrb, pwrb_handle->nxt_wrb_index);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
|
|
|
+ session_state, pwrb, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
|
|
|
+ pwrb, 1);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
|
|
|
+ pwrb, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
|
|
|
+ 0);
|
|
|
+
|
|
|
+ mem_descr = phba->init_mem;
|
|
|
+ mem_descr += ISCSI_MEM_GLOBAL_HEADER;
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
|
|
|
+ pad_buffer_addr_hi, pwrb,
|
|
|
+ mem_descr->mem_array[0].bus_address.u.a32.address_hi);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
|
|
|
+ pad_buffer_addr_lo, pwrb,
|
|
|
+ mem_descr->mem_array[0].bus_address.u.a32.address_lo);
|
|
|
+
|
|
|
+ be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb));
|
|
|
+
|
|
|
+ doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
|
|
|
+ doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) <<
|
|
|
+ DB_DEF_PDU_WRB_INDEX_SHIFT;
|
|
|
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
|
|
|
+
|
|
|
+ iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
|
|
|
+ int *index, int *age)
|
|
|
+{
|
|
|
+ *index = be32_to_cpu(itt) >> 16;
|
|
|
+ if (age)
|
|
|
+ *age = conn->session->age;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * beiscsi_alloc_pdu - allocates pdu and related resources
|
|
|
+ * @task: libiscsi task
|
|
|
+ * @opcode: opcode of pdu for task
|
|
|
+ *
|
|
|
+ * This is called with the session lock held. It will allocate
|
|
|
+ * the wrb and sgl if needed for the command. And it will prep
|
|
|
+ * the pdu's itt. beiscsi_parse_pdu will later translate
|
|
|
+ * the pdu itt to the libiscsi task itt.
|
|
|
+ */
|
|
|
+static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
|
|
|
+{
|
|
|
+ struct beiscsi_io_task *io_task = task->dd_data;
|
|
|
+ struct iscsi_conn *conn = task->conn;
|
|
|
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
|
|
|
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+ itt_t itt;
|
|
|
+ struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
|
|
|
+ dma_addr_t paddr;
|
|
|
+
|
|
|
+ io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool,
|
|
|
+ GFP_KERNEL, &paddr);
|
|
|
+
|
|
|
+ if (!io_task->cmd_bhs)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ io_task->bhs_pa.u.a64.address = paddr;
|
|
|
+ io_task->pwrb_handle = alloc_wrb_handle(phba,
|
|
|
+ beiscsi_conn->beiscsi_conn_cid,
|
|
|
+ task->itt);
|
|
|
+ io_task->pwrb_handle->pio_handle = task;
|
|
|
+ io_task->conn = beiscsi_conn;
|
|
|
+
|
|
|
+ task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
|
|
|
+ task->hdr_max = sizeof(struct be_cmd_bhs);
|
|
|
+
|
|
|
+ if (task->sc) {
|
|
|
+ spin_lock(&phba->io_sgl_lock);
|
|
|
+ io_task->psgl_handle = alloc_io_sgl_handle(phba);
|
|
|
+ spin_unlock(&phba->io_sgl_lock);
|
|
|
+ if (!io_task->psgl_handle)
|
|
|
+ goto free_hndls;
|
|
|
+
|
|
|
+ } else {
|
|
|
+ io_task->scsi_cmnd = NULL;
|
|
|
+ if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
|
|
|
+ if (!beiscsi_conn->login_in_progress) {
|
|
|
+ spin_lock(&phba->mgmt_sgl_lock);
|
|
|
+ io_task->psgl_handle = (struct sgl_handle *)
|
|
|
+ alloc_mgmt_sgl_handle(phba);
|
|
|
+ spin_unlock(&phba->mgmt_sgl_lock);
|
|
|
+ if (!io_task->psgl_handle)
|
|
|
+ goto free_hndls;
|
|
|
+
|
|
|
+ beiscsi_conn->login_in_progress = 1;
|
|
|
+ beiscsi_conn->plogin_sgl_handle =
|
|
|
+ io_task->psgl_handle;
|
|
|
+ } else {
|
|
|
+ io_task->psgl_handle =
|
|
|
+ beiscsi_conn->plogin_sgl_handle;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ spin_lock(&phba->mgmt_sgl_lock);
|
|
|
+ io_task->psgl_handle = alloc_mgmt_sgl_handle(phba);
|
|
|
+ spin_unlock(&phba->mgmt_sgl_lock);
|
|
|
+ if (!io_task->psgl_handle)
|
|
|
+ goto free_hndls;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ itt = (itt_t) cpu_to_be32(((unsigned int)task->itt << 16) |
|
|
|
+ (unsigned int)(io_task->psgl_handle->sgl_index));
|
|
|
+ io_task->cmd_bhs->iscsi_hdr.itt = itt;
|
|
|
+ return 0;
|
|
|
+
|
|
|
+free_hndls:
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid];
|
|
|
+ free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
|
|
|
+ io_task->pwrb_handle = NULL;
|
|
|
+ pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
|
|
|
+ io_task->bhs_pa.u.a64.address);
|
|
|
+ SE_DEBUG(DBG_LVL_1, "Alloc of SGL_ICD Failed \n");
|
|
|
+ return -ENOMEM;
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_cleanup_task(struct iscsi_task *task)
|
|
|
+{
|
|
|
+ struct beiscsi_io_task *io_task = task->dd_data;
|
|
|
+ struct iscsi_conn *conn = task->conn;
|
|
|
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
|
|
|
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
|
|
|
+ struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
|
|
|
+ struct hwi_wrb_context *pwrb_context;
|
|
|
+ struct hwi_controller *phwi_ctrlr;
|
|
|
+
|
|
|
+ phwi_ctrlr = phba->phwi_ctrlr;
|
|
|
+ pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid];
|
|
|
+ if (io_task->pwrb_handle) {
|
|
|
+ free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
|
|
|
+ io_task->pwrb_handle = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (io_task->cmd_bhs) {
|
|
|
+ pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
|
|
|
+ io_task->bhs_pa.u.a64.address);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (task->sc) {
|
|
|
+ if (io_task->psgl_handle) {
|
|
|
+ spin_lock(&phba->io_sgl_lock);
|
|
|
+ free_io_sgl_handle(phba, io_task->psgl_handle);
|
|
|
+ spin_unlock(&phba->io_sgl_lock);
|
|
|
+ io_task->psgl_handle = NULL;
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN)
|
|
|
+ return;
|
|
|
+ if (io_task->psgl_handle) {
|
|
|
+ spin_lock(&phba->mgmt_sgl_lock);
|
|
|
+ free_mgmt_sgl_handle(phba, io_task->psgl_handle);
|
|
|
+ spin_unlock(&phba->mgmt_sgl_lock);
|
|
|
+ io_task->psgl_handle = NULL;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
|
|
|
+ unsigned int num_sg, unsigned int xferlen,
|
|
|
+ unsigned int writedir)
|
|
|
+{
|
|
|
+
|
|
|
+ struct beiscsi_io_task *io_task = task->dd_data;
|
|
|
+ struct iscsi_conn *conn = task->conn;
|
|
|
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
|
|
|
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
|
|
|
+ struct iscsi_wrb *pwrb = NULL;
|
|
|
+ unsigned int doorbell = 0;
|
|
|
+
|
|
|
+ pwrb = io_task->pwrb_handle->pwrb;
|
|
|
+ io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
|
|
|
+ io_task->bhs_len = sizeof(struct be_cmd_bhs);
|
|
|
+
|
|
|
+ if (writedir) {
|
|
|
+ SE_DEBUG(DBG_LVL_4, " WRITE Command \t");
|
|
|
+ memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48);
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_data_out, itt,
|
|
|
+ &io_task->cmd_bhs->iscsi_data_pdu,
|
|
|
+ (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt);
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_data_out, opcode,
|
|
|
+ &io_task->cmd_bhs->iscsi_data_pdu,
|
|
|
+ ISCSI_OPCODE_SCSI_DATA_OUT);
|
|
|
+ AMAP_SET_BITS(struct amap_pdu_data_out, final_bit,
|
|
|
+ &io_task->cmd_bhs->iscsi_data_pdu, 1);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
|
|
|
+ } else {
|
|
|
+ SE_DEBUG(DBG_LVL_4, "READ Command \t");
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
|
|
|
+ }
|
|
|
+ memcpy(&io_task->cmd_bhs->iscsi_data_pdu.
|
|
|
+ dw[offsetof(struct amap_pdu_data_out, lun) / 32],
|
|
|
+ io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun));
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
|
|
|
+ cpu_to_be16((unsigned short)io_task->cmd_bhs->iscsi_hdr.
|
|
|
+ lun[0]));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
|
|
|
+ io_task->pwrb_handle->wrb_index);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
|
|
|
+ be32_to_cpu(task->cmdsn));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
|
|
|
+ io_task->psgl_handle->sgl_index);
|
|
|
+
|
|
|
+ hwi_write_sgl(pwrb, sg, num_sg, io_task);
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
|
|
|
+ io_task->pwrb_handle->nxt_wrb_index);
|
|
|
+ be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
|
|
|
+
|
|
|
+ doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
|
|
|
+ doorbell |= (io_task->pwrb_handle->wrb_index &
|
|
|
+ DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
|
|
|
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
|
|
|
+
|
|
|
+ iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_mtask(struct iscsi_task *task)
|
|
|
+{
|
|
|
+ struct beiscsi_io_task *aborted_io_task, *io_task = task->dd_data;
|
|
|
+ struct iscsi_conn *conn = task->conn;
|
|
|
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
|
|
|
+ struct beiscsi_hba *phba = beiscsi_conn->phba;
|
|
|
+ struct iscsi_wrb *pwrb = NULL;
|
|
|
+ unsigned int doorbell = 0;
|
|
|
+ struct iscsi_task *aborted_task;
|
|
|
+
|
|
|
+ pwrb = io_task->pwrb_handle->pwrb;
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
|
|
|
+ be32_to_cpu(task->cmdsn));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
|
|
|
+ io_task->pwrb_handle->wrb_index);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
|
|
|
+ io_task->psgl_handle->sgl_index);
|
|
|
+
|
|
|
+ switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
|
|
|
+ case ISCSI_OP_LOGIN:
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, TGT_DM_CMD);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
|
|
|
+ hwi_write_buffer(pwrb, task);
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_NOOP_OUT:
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
|
|
|
+ hwi_write_buffer(pwrb, task);
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_TEXT:
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
|
|
|
+ hwi_write_buffer(pwrb, task);
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_SCSI_TMFUNC:
|
|
|
+ aborted_task = iscsi_itt_to_task(conn,
|
|
|
+ ((struct iscsi_tm *)task->hdr)->rtt);
|
|
|
+ if (!aborted_task)
|
|
|
+ return 0;
|
|
|
+ aborted_io_task = aborted_task->dd_data;
|
|
|
+ if (!aborted_io_task->scsi_cmnd)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ mgmt_invalidate_icds(phba,
|
|
|
+ aborted_io_task->psgl_handle->sgl_index,
|
|
|
+ beiscsi_conn->beiscsi_conn_cid);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_TMF_CMD);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
|
|
|
+ hwi_write_buffer(pwrb, task);
|
|
|
+ break;
|
|
|
+ case ISCSI_OP_LOGOUT:
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
|
|
|
+ HWH_TYPE_LOGOUT);
|
|
|
+ hwi_write_buffer(pwrb, task);
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported \n",
|
|
|
+ task->hdr->opcode & ISCSI_OPCODE_MASK);
|
|
|
+ return -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb,
|
|
|
+ be32_to_cpu(task->data_count));
|
|
|
+ AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
|
|
|
+ io_task->pwrb_handle->nxt_wrb_index);
|
|
|
+ be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
|
|
|
+
|
|
|
+ doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
|
|
|
+ doorbell |= (io_task->pwrb_handle->wrb_index &
|
|
|
+ DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
|
|
|
+ doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
|
|
|
+ iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int beiscsi_task_xmit(struct iscsi_task *task)
|
|
|
+{
|
|
|
+ struct iscsi_conn *conn = task->conn;
|
|
|
+ struct beiscsi_io_task *io_task = task->dd_data;
|
|
|
+ struct scsi_cmnd *sc = task->sc;
|
|
|
+ struct beiscsi_conn *beiscsi_conn = conn->dd_data;
|
|
|
+ struct scatterlist *sg;
|
|
|
+ int num_sg;
|
|
|
+ unsigned int writedir = 0, xferlen = 0;
|
|
|
+
|
|
|
+ SE_DEBUG(DBG_LVL_4, "\n cid=%d In beiscsi_task_xmit task=%p conn=%p \t"
|
|
|
+ "beiscsi_conn=%p \n", beiscsi_conn->beiscsi_conn_cid,
|
|
|
+ task, conn, beiscsi_conn);
|
|
|
+ if (!sc)
|
|
|
+ return beiscsi_mtask(task);
|
|
|
+
|
|
|
+ io_task->scsi_cmnd = sc;
|
|
|
+ num_sg = scsi_dma_map(sc);
|
|
|
+ if (num_sg < 0) {
|
|
|
+ SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n")
|
|
|
+ return num_sg;
|
|
|
+ }
|
|
|
+ SE_DEBUG(DBG_LVL_4, "xferlen=0x%08x scmd=%p num_sg=%d sernum=%lu\n",
|
|
|
+ (scsi_bufflen(sc)), sc, num_sg, sc->serial_number);
|
|
|
+ xferlen = scsi_bufflen(sc);
|
|
|
+ sg = scsi_sglist(sc);
|
|
|
+ if (sc->sc_data_direction == DMA_TO_DEVICE) {
|
|
|
+ writedir = 1;
|
|
|
+ SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x \n",
|
|
|
+ task->imm_count);
|
|
|
+ } else
|
|
|
+ writedir = 0;
|
|
|
+ return beiscsi_iotask(task, sg, num_sg, xferlen, writedir);
|
|
|
+}
|
|
|
+
|
|
|
+static void beiscsi_remove(struct pci_dev *pcidev)
|
|
|
+{
|
|
|
+ struct beiscsi_hba *phba = NULL;
|
|
|
+
|
|
|
+ phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
|
|
|
+ if (!phba) {
|
|
|
+ dev_err(&pcidev->dev, "beiscsi_remove called with no phba \n");
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ hwi_disable_intr(phba);
|
|
|
+ if (phba->pcidev->irq)
|
|
|
+ free_irq(phba->pcidev->irq, phba);
|
|
|
+ destroy_workqueue(phba->wq);
|
|
|
+ if (blk_iopoll_enabled)
|
|
|
+ blk_iopoll_disable(&phba->iopoll);
|
|
|
+
|
|
|
+ beiscsi_clean_port(phba);
|
|
|
+ beiscsi_free_mem(phba);
|
|
|
+ beiscsi_unmap_pci_function(phba);
|
|
|
+ pci_free_consistent(phba->pcidev,
|
|
|
+ phba->ctrl.mbox_mem_alloced.size,
|
|
|
+ phba->ctrl.mbox_mem_alloced.va,
|
|
|
+ phba->ctrl.mbox_mem_alloced.dma);
|
|
|
+ iscsi_host_remove(phba->shost);
|
|
|
+ pci_dev_put(phba->pcidev);
|
|
|
+ iscsi_host_free(phba->shost);
|
|
|
+}
|
|
|
+
|
|
|
+static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
|
|
|
+ const struct pci_device_id *id)
|
|
|
+{
|
|
|
+ struct beiscsi_hba *phba = NULL;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret = beiscsi_enable_pci(pcidev);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
|
|
|
+ "Failed to enable pci device \n");
|
|
|
+ return ret;
|
|
|
+ }
|
|
|
+
|
|
|
+ phba = beiscsi_hba_alloc(pcidev);
|
|
|
+ if (!phba) {
|
|
|
+ dev_err(&pcidev->dev, "beiscsi_dev_probe-"
|
|
|
+ " Failed in beiscsi_hba_alloc \n");
|
|
|
+ goto disable_pci;
|
|
|
+ }
|
|
|
+
|
|
|
+ pci_set_drvdata(pcidev, phba);
|
|
|
+ ret = be_ctrl_init(phba, pcidev);
|
|
|
+ if (ret) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
|
|
|
+ "Failed in be_ctrl_init\n");
|
|
|
+ goto hba_free;
|
|
|
+ }
|
|
|
+
|
|
|
+ spin_lock_init(&phba->io_sgl_lock);
|
|
|
+ spin_lock_init(&phba->mgmt_sgl_lock);
|
|
|
+ spin_lock_init(&phba->isr_lock);
|
|
|
+ beiscsi_get_params(phba);
|
|
|
+ ret = beiscsi_init_port(phba);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
|
|
|
+ "Failed in beiscsi_init_port\n");
|
|
|
+ goto free_port;
|
|
|
+ }
|
|
|
+
|
|
|
+ snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u",
|
|
|
+ phba->shost->host_no);
|
|
|
+ phba->wq = create_singlethread_workqueue(phba->wq_name);
|
|
|
+ if (!phba->wq) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
|
|
|
+ "Failed to allocate work queue\n");
|
|
|
+ goto free_twq;
|
|
|
+ }
|
|
|
+
|
|
|
+ INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs);
|
|
|
+
|
|
|
+ if (blk_iopoll_enabled) {
|
|
|
+ blk_iopoll_init(&phba->iopoll, be_iopoll_budget, be_iopoll);
|
|
|
+ blk_iopoll_enable(&phba->iopoll);
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = beiscsi_init_irqs(phba);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
|
|
|
+ "Failed to beiscsi_init_irqs\n");
|
|
|
+ goto free_blkenbld;
|
|
|
+ }
|
|
|
+ ret = hwi_enable_intr(phba);
|
|
|
+ if (ret < 0) {
|
|
|
+ shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
|
|
|
+ "Failed to hwi_enable_intr\n");
|
|
|
+ goto free_ctrlr;
|
|
|
+ }
|
|
|
+
|
|
|
+ SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED \n\n\n");
|
|
|
+ return 0;
|
|
|
+
|
|
|
+free_ctrlr:
|
|
|
+ if (phba->pcidev->irq)
|
|
|
+ free_irq(phba->pcidev->irq, phba);
|
|
|
+free_blkenbld:
|
|
|
+ destroy_workqueue(phba->wq);
|
|
|
+ if (blk_iopoll_enabled)
|
|
|
+ blk_iopoll_disable(&phba->iopoll);
|
|
|
+free_twq:
|
|
|
+ beiscsi_clean_port(phba);
|
|
|
+ beiscsi_free_mem(phba);
|
|
|
+free_port:
|
|
|
+ pci_free_consistent(phba->pcidev,
|
|
|
+ phba->ctrl.mbox_mem_alloced.size,
|
|
|
+ phba->ctrl.mbox_mem_alloced.va,
|
|
|
+ phba->ctrl.mbox_mem_alloced.dma);
|
|
|
+ beiscsi_unmap_pci_function(phba);
|
|
|
+hba_free:
|
|
|
+ iscsi_host_remove(phba->shost);
|
|
|
+ pci_dev_put(phba->pcidev);
|
|
|
+ iscsi_host_free(phba->shost);
|
|
|
+disable_pci:
|
|
|
+ pci_disable_device(pcidev);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+struct iscsi_transport beiscsi_iscsi_transport = {
|
|
|
+ .owner = THIS_MODULE,
|
|
|
+ .name = DRV_NAME,
|
|
|
+ .caps = CAP_RECOVERY_L0 | CAP_HDRDGST |
|
|
|
+ CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD,
|
|
|
+ .param_mask = ISCSI_MAX_RECV_DLENGTH |
|
|
|
+ ISCSI_MAX_XMIT_DLENGTH |
|
|
|
+ ISCSI_HDRDGST_EN |
|
|
|
+ ISCSI_DATADGST_EN |
|
|
|
+ ISCSI_INITIAL_R2T_EN |
|
|
|
+ ISCSI_MAX_R2T |
|
|
|
+ ISCSI_IMM_DATA_EN |
|
|
|
+ ISCSI_FIRST_BURST |
|
|
|
+ ISCSI_MAX_BURST |
|
|
|
+ ISCSI_PDU_INORDER_EN |
|
|
|
+ ISCSI_DATASEQ_INORDER_EN |
|
|
|
+ ISCSI_ERL |
|
|
|
+ ISCSI_CONN_PORT |
|
|
|
+ ISCSI_CONN_ADDRESS |
|
|
|
+ ISCSI_EXP_STATSN |
|
|
|
+ ISCSI_PERSISTENT_PORT |
|
|
|
+ ISCSI_PERSISTENT_ADDRESS |
|
|
|
+ ISCSI_TARGET_NAME | ISCSI_TPGT |
|
|
|
+ ISCSI_USERNAME | ISCSI_PASSWORD |
|
|
|
+ ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
|
|
|
+ ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
|
|
|
+ ISCSI_LU_RESET_TMO |
|
|
|
+ ISCSI_PING_TMO | ISCSI_RECV_TMO |
|
|
|
+ ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
|
|
|
+ .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS |
|
|
|
+ ISCSI_HOST_INITIATOR_NAME,
|
|
|
+ .create_session = beiscsi_session_create,
|
|
|
+ .destroy_session = beiscsi_session_destroy,
|
|
|
+ .create_conn = beiscsi_conn_create,
|
|
|
+ .bind_conn = beiscsi_conn_bind,
|
|
|
+ .destroy_conn = iscsi_conn_teardown,
|
|
|
+ .set_param = beiscsi_set_param,
|
|
|
+ .get_conn_param = beiscsi_conn_get_param,
|
|
|
+ .get_session_param = iscsi_session_get_param,
|
|
|
+ .get_host_param = beiscsi_get_host_param,
|
|
|
+ .start_conn = beiscsi_conn_start,
|
|
|
+ .stop_conn = beiscsi_conn_stop,
|
|
|
+ .send_pdu = iscsi_conn_send_pdu,
|
|
|
+ .xmit_task = beiscsi_task_xmit,
|
|
|
+ .cleanup_task = beiscsi_cleanup_task,
|
|
|
+ .alloc_pdu = beiscsi_alloc_pdu,
|
|
|
+ .parse_pdu_itt = beiscsi_parse_pdu,
|
|
|
+ .get_stats = beiscsi_conn_get_stats,
|
|
|
+ .ep_connect = beiscsi_ep_connect,
|
|
|
+ .ep_poll = beiscsi_ep_poll,
|
|
|
+ .ep_disconnect = beiscsi_ep_disconnect,
|
|
|
+ .session_recovery_timedout = iscsi_session_recovery_timedout,
|
|
|
+};
|
|
|
+
|
|
|
+static struct pci_driver beiscsi_pci_driver = {
|
|
|
+ .name = DRV_NAME,
|
|
|
+ .probe = beiscsi_dev_probe,
|
|
|
+ .remove = beiscsi_remove,
|
|
|
+ .id_table = beiscsi_pci_id_table
|
|
|
+};
|
|
|
+
|
|
|
+static int __init beiscsi_module_init(void)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ beiscsi_scsi_transport =
|
|
|
+ iscsi_register_transport(&beiscsi_iscsi_transport);
|
|
|
+ if (!beiscsi_scsi_transport) {
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "beiscsi_module_init - Unable to register beiscsi"
|
|
|
+ "transport.\n");
|
|
|
+ ret = -ENOMEM;
|
|
|
+ }
|
|
|
+ SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p \n",
|
|
|
+ &beiscsi_iscsi_transport);
|
|
|
+
|
|
|
+ ret = pci_register_driver(&beiscsi_pci_driver);
|
|
|
+ if (ret) {
|
|
|
+ SE_DEBUG(DBG_LVL_1,
|
|
|
+ "beiscsi_module_init - Unable to register"
|
|
|
+ "beiscsi pci driver.\n");
|
|
|
+ goto unregister_iscsi_transport;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+
|
|
|
+unregister_iscsi_transport:
|
|
|
+ iscsi_unregister_transport(&beiscsi_iscsi_transport);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit beiscsi_module_exit(void)
|
|
|
+{
|
|
|
+ pci_unregister_driver(&beiscsi_pci_driver);
|
|
|
+ iscsi_unregister_transport(&beiscsi_iscsi_transport);
|
|
|
+}
|
|
|
+
|
|
|
+module_init(beiscsi_module_init);
|
|
|
+module_exit(beiscsi_module_exit);
|