You might want to document what happens when extended_error_logging is
set to value other than 1.
Another _source_ optimization is to rearrange the file so that funcs
in the file don't need a decl for other funcs in the same file. Place
the definition of the func in the file before the use of the func.
In qla4xxx_eh_abort(), neither branch returns success. Is this
intentional? If so, you could delete the if(..) and always return
failed.
There is no need to cast when the source pointer is void*, e.g.,
struct ddb_entry *ddb_entry = (structddb_entry*)cmd->device->hostdata;
The cast will silently break the code if the source pointer type is
changed. Without the cast there will (should?) be no doubt the
assignment is incorrect at compile time.
hmm. after checking on struct Scsi_Host, hostdata there is of type
unsigned long, so in this case, the cast _is_ needed.
++doug
--
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
new file mode 100644
index 0000000..0e87a0f
--- /dev/null
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -0,0 +1,1963 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c) 2003-2006 QLogic Corporation
+ *
+ * See LICENSE.qla4xxx for copyright and licensing details.
+ */
+
+#include "ql4_def.h"
+
+#include <linux/moduleparam.h>
+
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsicam.h>
+
+/*
+ * Driver version
+ */
+char qla4xxx_version_str[40];
+
+/*
+ * SRB allocation cache
+ */
+kmem_cache_t *srb_cachep;
+
+/*
+ * Module parameter information and variables
+ */
+int ql4xdiscoverywait = 60;
+module_param(ql4xdiscoverywait, int, S_IRUGO | S_IRUSR);
+MODULE_PARM_DESC(ql4xdiscoverywait, "Discovery wait time");
+int ql4xdontresethba = 0;
+module_param(ql4xdontresethba, int, S_IRUGO | S_IRUSR);
+MODULE_PARM_DESC(ql4xdontresethba,
+ "Dont reset the HBA when the driver gets 0x8002 AEN "
+ " default it will reset hba :0"
+ " set to 1 to avoid resetting HBA");
+
+int extended_error_logging = 0; /* 0 = off, 1 = log errors */
+module_param(extended_error_logging, int, S_IRUGO | S_IRUSR);
+MODULE_PARM_DESC(extended_error_logging,
+ "Option to enable extended error logging, "
+ "Default is 0 - no logging, 1 - debug " "logging");
+
+/*
+ * SCSI host template entry points
+ */
+
+static int qla4xxx_mem_alloc(scsi_qla_host_t * ha);
+static void qla4xxx_mem_free(scsi_qla_host_t * ha);
+static void qla4xxx_timer(scsi_qla_host_t *ha);
+static int qla4xxx_do_dpc(void *data);
+static void qla4xxx_flush_active_srbs(scsi_qla_host_t * ha);
+int qla4xxx_reset_target(scsi_qla_host_t * ha, ddb_entry_t * ddb_entry);
+int qla4xxx_recover_adapter(scsi_qla_host_t * ha, uint8_t renew_ddb_list);
+void qla4xxx_config_dma_addressing(scsi_qla_host_t * ha);
+
+static int qla4xxx_iospace_config(scsi_qla_host_t * ha);
+static void qla4xxx_free_adapter(scsi_qla_host_t * ha);
+static int
+qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, uint32_t *value);
+static int
+qla4xxx_session_get_param(struct iscsi_cls_session *cls_session,
+ enum iscsi_param param, uint32_t *value);
+
+/*
+ * SCSI host template entry points
+ */
+static int qla4xxx_queuecommand(struct scsi_cmnd *cmd,
+ void (*done) (struct scsi_cmnd *));
+static int qla4xxx_eh_abort(struct scsi_cmnd *cmd);
+static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd);
+static int qla4xxx_eh_bus_reset(struct scsi_cmnd *cmd);
+static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd);
+static int qla4xxx_slave_alloc(struct scsi_device *device);
+static int qla4xxx_slave_configure(struct scsi_device *device);
+static void qla4xxx_slave_destroy(struct scsi_device *device);
+
+static struct scsi_host_template qla4xxx_driver_template = {
+ .module = THIS_MODULE,
+ .name = "qla4xxx",
+ .queuecommand = qla4xxx_queuecommand,
+
+ .eh_abort_handler = qla4xxx_eh_abort,
+ .eh_device_reset_handler = qla4xxx_eh_device_reset,
+ .eh_bus_reset_handler = qla4xxx_eh_bus_reset,
+ .eh_host_reset_handler = qla4xxx_eh_host_reset,
+
+ .slave_configure = qla4xxx_slave_configure,
+ .slave_alloc = qla4xxx_slave_alloc,
+ .slave_destroy = qla4xxx_slave_destroy,
+
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .use_clustering = ENABLE_CLUSTERING,
+ .sg_tablesize = SG_ALL,
+
+ .max_sectors = 0xFFFF,
+};
+
+static struct iscsi_transport qla4xxx_iscsi_transport_functions = {
+ .owner = THIS_MODULE,
+ .name = "qla4xxx",
+ .caps = 0,
+ .host_template = &qla4xxx_driver_template,
+ .hostdata_size = 0,
+ .conndata_size = 0,
+ .max_conn = 1,
+ .max_cmd_len = IOCB_MAX_CDB_LEN,
+ .get_conn_param = qla4xxx_conn_get_param,
+ .get_session_param = qla4xxx_session_get_param,
+};
+
+static struct scsi_transport_template *qla4xxx_transport_template = NULL;
+
+static int
+qla4xxx_conn_get_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, uint32_t *value)
+{
+ *value = 0;
+ return ISCSI_ERR_PARAM_NOT_FOUND;
+}
+
+static int
+qla4xxx_session_get_param(struct iscsi_cls_session *cls_session,
+ enum iscsi_param param, uint32_t *value)
+{
+ *value = 0;
+ return ISCSI_ERR_PARAM_NOT_FOUND;
+}
+
+/*
+ * Timer routines
+ */
+
+static void
+qla4xxx_start_timer(scsi_qla_host_t * ha, void *func, unsigned long interval)
+{
+ DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
+ __func__, ha->instance));
-EPRINTKMISSINGLEVEL
+ init_timer(&ha->timer);
+ ha->timer.expires = jiffies + interval * HZ;
+ ha->timer.data = (unsigned long)ha;
+ ha->timer.function = (void (*)(unsigned long))func;
+ add_timer(&ha->timer);
+ ha->timer_active = 1;
+}
+
+static void
+qla4xxx_stop_timer(scsi_qla_host_t * ha)
+{
+ del_timer_sync(&ha->timer);
+ ha->timer_active = 0;
+}
+
+/**************************************************************************
+ * qla4xxx_mark_device_missing
+ * This routine marks a device missing and resets the relogin retry count.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ * ddb_entry - Pointer to device database entry
+ *
+ * Returns:
+ * None
+ *
+ **************************************************************************/
-ENEEDSKERNELDOC
+void
+qla4xxx_mark_device_missing(scsi_qla_host_t * ha, ddb_entry_t * ddb_entry)
+{
+ atomic_set(&ddb_entry->state, DDB_STATE_MISSING);
+ DEBUG3(printk("scsi%d:%d:%d: index [%d] marked MISSING\n",
+ ha->host_no, ddb_entry->bus, ddb_entry->target,
+ ddb_entry->fw_ddb_index));
-EPRINTKMISSINGLEVEL
+}
+
+static inline srb_t *
+qla4xxx_get_new_srb(scsi_qla_host_t *ha, struct ddb_entry *ddb_entry,
+ struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+{
+ srb_t *srb;
+
+ srb = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
+ if (!srb)
+ return srb;
+
+ atomic_set(&srb->ref_count, 1);
+ srb->ha = ha;
+ srb->ddb = ddb_entry;
+ srb->cmd = cmd;
+ srb->flags = 0;
+ CMD_SP(cmd) = (void *)srb;
+ cmd->scsi_done = done;
+
+ return srb;
+}
+
+static void
+qla4xxx_srb_free_dma(scsi_qla_host_t *ha, srb_t *srb)
+{
+ struct scsi_cmnd *cmd = srb->cmd;
+
+ if (srb->flags & SRB_DMA_VALID) {
+ if (cmd->use_sg) {
+ dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
+ cmd->use_sg, cmd->sc_data_direction);
+ } else if (cmd->request_bufflen) {
+ dma_unmap_single(&ha->pdev->dev, srb->dma_handle,
+ cmd->request_bufflen, cmd->sc_data_direction);
+ }
+ srb->flags &= ~SRB_DMA_VALID;
+ }
+ CMD_SP(cmd) = NULL;
+}
+
+void
+qla4xxx_srb_compl(scsi_qla_host_t *ha, srb_t *srb)
+{
+ struct scsi_cmnd *cmd = srb->cmd;
+
+ qla4xxx_srb_free_dma(ha, srb);
+
+ mempool_free(srb, ha->srb_mempool);
+
+ cmd->scsi_done(cmd);
+}
+
+/**************************************************************************
+ * qla4xxx_queuecommand
+ * This routine is invoked by Linux to send a SCSI command to the driver.
+ *
+ * Input:
+ * cmd - Pointer to Linux's SCSI command structure
+ * done_fn - Function that the driver calls to notify the SCSI mid-layer
+ * that the command has been processed.
+ *
+ * Remarks:
+ * The mid-level driver tries to ensure that queuecommand never gets
+ * invoked concurrently with itself or the interrupt handler (although
+ * the interrupt handler may call this routine as part of request-
+ * completion handling). Unfortunely, it sometimes calls the scheduler
+ * in interrupt context which is a big NO! NO!.
+ *
+ * Returns:
+ * None
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
+{
+ scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
+ struct ddb_entry *ddb_entry = (struct ddb_entry *)cmd->device->hostdata;
-ECASTNOTNEEDED
+ srb_t *srb;
+ int rval;
+
+ if (!ddb_entry) {
+ cmd->result = DID_NO_CONNECT << 16;
+ goto qc_fail_command;
+ }
+
+ if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
+ if (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD) {
+ cmd->result = DID_NO_CONNECT << 16;
+ goto qc_fail_command;
+ }
+ goto qc_host_busy;
+ }
+
+ spin_unlock_irq(ha->host->host_lock);
+
+ srb = qla4xxx_get_new_srb(ha, ddb_entry, cmd, done);
+ if (!srb)
+ goto qc_host_busy_lock;
+
+ rval = qla4xxx_send_command_to_isp(ha, srb);
+ if (rval != QLA_SUCCESS)
+ goto qc_host_busy_free_sp;
+
+ spin_lock_irq(ha->host->host_lock);
+ return 0;
+
+qc_host_busy_free_sp:
+ qla4xxx_srb_free_dma(ha, srb);
+ mempool_free(srb, ha->srb_mempool);
+
+qc_host_busy_lock:
+ spin_lock_irq(ha->host->host_lock);
+
+qc_host_busy:
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+qc_fail_command:
+ done(cmd);
+
+ return 0;
+}
+
+/**************************************************************************
+ * qla4xxx_probe_adapter
+ * This routine will probe for Qlogic 4010 iSCSI host adapters.
+ * It returns the number of host adapters of a particular
+ * type that were found. It also initializes all data necessary for
+ * the driver. It is passed-in the host number, so that it
+ * knows where its first entry is in the scsi_hosts[] array.
+ *
+ * Input:
+ *
+ * Returns:
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int __devinit
+qla4xxx_probe_adapter(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int ret = -ENODEV, status;
+ struct Scsi_Host *host;
+ scsi_qla_host_t *ha;
+ uint8_t init_retry_count = 0;
+ struct ddb_entry *ddb_entry, *ddbtemp;
+
+ if (pci_enable_device(pdev))
+ return -1;
+
+ host = scsi_host_alloc(&qla4xxx_driver_template,
+ sizeof(scsi_qla_host_t));
+ if (host == NULL) {
+ printk(KERN_WARNING
+ "qla4xxx: Couldn't allocate host from scsi layer!\n");
+ goto probe_disable_device;
+ }
+
+ /* Clear our data area */
+ ha = (scsi_qla_host_t *) host->hostdata;
+ memset(ha, 0, sizeof(scsi_qla_host_t));
+
+ /* Save the information from PCI BIOS. */
+ ha->pdev = pdev;
+ ha->host = host;
+ ha->host_no = host->host_no;
+
+ /* Configure PCI I/O space. */
+ ret = qla4xxx_iospace_config(ha);
+ if (ret)
+ goto probe_failed;
+
+ ql4_printk(KERN_INFO, ha,
+ "Found an ISP%04x, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
+ ha->reg);
+
+ qla4xxx_config_dma_addressing(ha);
+
+ /* Initialize lists and spinlocks. */
+ INIT_LIST_HEAD(&ha->ddb_list);
+ INIT_LIST_HEAD(&ha->free_srb_q);
+
+ mutex_init(&ha->mbox_sem);
+ init_waitqueue_head(&ha->mailbox_wait_queue);
+
+ spin_lock_init(&ha->hardware_lock);
+ spin_lock_init(&ha->list_lock);
+
+ /* Allocate dma buffers */
+ if (qla4xxx_mem_alloc(ha)) {
+ ql4_printk(KERN_WARNING, ha,
+ "[ERROR] Failed to allocate memory for adapter\n");
+
+ ret = -ENOMEM;
+ goto probe_disable_device;
+ }
+
+ /*
+ * Initialize the Host adapter request/response queues and
+ * firmware
+ * NOTE: interrupts enabled upon successful completion
+ */
+ status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST);
+ while (status == QLA_ERROR && init_retry_count++ < MAX_INIT_RETRIES) {
+ DEBUG2(printk("scsi: %s: retrying adapter initialization "
+ "(%d)\n", __func__, init_retry_count));
-EPRINTKMISSINGLEVEL
+ qla4xxx_soft_reset(ha);
+ status = qla4xxx_initialize_adapter(ha, REBUILD_DDB_LIST);
+ }
+ if (status == QLA_ERROR) {
+ ql4_printk(KERN_WARNING, ha, "Failed to initialize adapter\n");
+
+ ret = -ENODEV;
+ goto probe_failed;
+ }
+
+ host->cmd_per_lun = 3;
+ host->max_channel = 0;
+ host->max_lun = MAX_LUNS - 1;
+ host->max_id = MAX_TARGETS;
+ host->unique_id = ha->instance;
+ host->max_cmd_len = IOCB_MAX_CDB_LEN;
+ host->can_queue = REQUEST_QUEUE_DEPTH + 128;
+ host->transportt = qla4xxx_transport_template;
+
+ /* Startup the kernel thread for this host adapter. */
+ DEBUG2(printk("scsi: %s: Starting kernel thread for "
+ "qla4xxx_dpc\n", __func__));
-EPRINTKMISSINGLEVEL
+ ha->dpc_thread = kthread_create(qla4xxx_do_dpc, ha, "qla4xxx_%d_dpc",
+ ha->host_no);
+ if (IS_ERR(ha->dpc_thread)) {
+ ql4_printk(KERN_WARNING, ha, "Unable to start DPC thread!\n");
+
+ ret = PTR_ERR(ha->dpc_thread);
+ goto probe_failed;
+ }
+
+ ret = request_irq(pdev->irq, qla4xxx_intr_handler,
+ SA_INTERRUPT|SA_SHIRQ, "qla4xxx", ha);
+ if (ret) {
+ ql4_printk(KERN_WARNING, ha,
+ "Failed to reserve interrupt %d already in use.\n",
+ pdev->irq);
+ goto probe_failed;
+ }
+ set_bit(AF_IRQ_ATTACHED, &ha->flags);
+ host->irq = pdev->irq;
+ DEBUG(printk("scsi%d: irq %d attached\n", ha->host_no, ha->pdev->irq));
-EPRINTKMISSINGLEVEL
+
+ qla4xxx_enable_intrs(ha);
+
+ /* Start timer thread. */
+ qla4xxx_start_timer(ha, qla4xxx_timer, 1);
+
+ set_bit(AF_INIT_DONE, &ha->flags);
+
+ pci_set_drvdata(pdev, ha);
+
+ ret = scsi_add_host(host, &pdev->dev);
+ if (ret)
+ goto probe_failed;
+
+/*FIXME*/
+/* qla4x00_alloc_sysfs_attr(ha); */
-EREMOVE_DEAD_CODE
+
+ printk(KERN_INFO
+ " QLogic iSCSI HBA Driver version: %s\n"
+ " QLogic ISP%04x @ %s, host#=%ld, fw=%02d.%02d.%02d.%02d\n",
+ qla4xxx_version_str, ha->pdev->device, pci_name(ha->pdev),
+ ha->host_no, ha->firmware_version[0], ha->firmware_version[1],
+ ha->patch_number, ha->build_number);
+
+ /* Update transport device information for all devices. */
+ list_for_each_entry_safe(ddb_entry, ddbtemp, &ha->ddb_list, list) {
+ if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
+ if( (ddb_entry->session = iscsi_create_session(host,
+ &qla4xxx_iscsi_transport_functions)) != NULL ) {
+ ddb_entry->session->dd_data = ddb_entry;
+ iscsi_create_conn(ddb_entry->session, 0);
+ }
+ }
+ }
+
+ scsi_scan_host(host);
+
+ return 0;
+
+probe_failed:
+ qla4xxx_free_adapter(ha);
+
+probe_disable_device:
+ pci_disable_device(pdev);
+
+ return ret;
+}
+
+/**************************************************************************
+ * qla4xxx_remove_adapter
+ *
+ * Input:
+ * pci_dev - PCI device pointer
+ *
+ * Returns:
+ **************************************************************************/
-ENEEDSKERNELDOC
+static void __devexit
+qla4xxx_remove_adapter(struct pci_dev *pdev)
+{
+ scsi_qla_host_t *ha;
+
+ ha = pci_get_drvdata(pdev);
+
+ scsi_remove_host(ha->host);
+
+ qla4xxx_free_adapter(ha);
+
+ scsi_host_put(ha->host);
+
+ pci_set_drvdata(pdev, NULL);
+}
+
+/**************************************************************************
+ * qla4xxx_free_adapter
+ *
+ * Input:
+ * pci_dev - PCI device pointer
+ *
+ * Returns:
+ **************************************************************************/
-ENEEDSKERNELDOC
+static void
+qla4xxx_free_adapter(scsi_qla_host_t * ha)
+{
+
+ if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) {
+ /* Turn-off interrupts on the card. */
+ qla4xxx_disable_intrs(ha);
+ }
+
+ /* Kill the kernel thread for this host */
+ if (ha->dpc_thread) {
+ struct task_struct *t = ha->dpc_thread;
+
+ /*
+ * qla4xxx_wake_dpc checks for ->dpc_thread so we need to zero
+ * it out.
+ */
+ ha->dpc_thread = NULL;
+ kthread_stop(t);
+ }
+
+ /* Issue Soft Reset to put firmware in unknown state */
+ qla4xxx_soft_reset(ha);
+
+ /* Remove timer thread, if present */
+ if (ha->timer_active)
+ qla4xxx_stop_timer(ha);
+
+ /* free extra memory */
+ qla4xxx_mem_free(ha);
+
+ /* Detach interrupts */
+ if (test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags))
+ free_irq(ha->pdev->irq, ha);
+
+ pci_disable_device(ha->pdev);
+
+}
+
+/**************************************************************************
+ * qla4xxx_iospace_config
+ * This routine
+ *
+ * Input:
+ *
+ * Returns:
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_iospace_config(scsi_qla_host_t * ha)
+{
+ unsigned long pio, pio_len, pio_flags;
+ unsigned long mmio, mmio_len, mmio_flags;
+
+ pio = pci_resource_start(ha->pdev, 0);
+ pio_len = pci_resource_len(ha->pdev, 0);
+ pio_flags = pci_resource_flags(ha->pdev, 0);
+ if (pio_flags & IORESOURCE_IO) {
+ if (pio_len < MIN_IOBASE_LEN) {
+ ql4_printk(KERN_WARNING, ha,
+ "Invalid PCI I/O region size (%s)...\n",
+ pci_name(ha->pdev));
+ pio = 0;
+ }
+ } else {
+ ql4_printk(KERN_WARNING, ha,
+ "region #0 not a PIO resource (%s)...\n",
+ pci_name(ha->pdev));
+ pio = 0;
+ }
+
+ /* Use MMIO operations for all accesses. */
+ mmio = pci_resource_start(ha->pdev, 1);
+ mmio_len = pci_resource_len(ha->pdev, 1);
+ mmio_flags = pci_resource_flags(ha->pdev, 1);
+
+ if (!(mmio_flags & IORESOURCE_MEM)) {
+ ql4_printk(KERN_ERR, ha,
+ "region #0 not an MMIO resource (%s), aborting\n",
+ pci_name(ha->pdev));
+ goto iospace_error_exit;
+ }
+ if (mmio_len < MIN_IOBASE_LEN) {
+ ql4_printk(KERN_ERR, ha,
+ "Invalid PCI mem region size (%s), aborting\n",
+ pci_name(ha->pdev));
+ goto iospace_error_exit;
+ }
+
+ if (pci_request_regions(ha->pdev, DRIVER_NAME)) {
+ ql4_printk(KERN_WARNING, ha,
+ "Failed to reserve PIO/MMIO regions (%s)\n",
+ pci_name(ha->pdev));
+
+ goto iospace_error_exit;
+ }
+
+ ha->pio_address = pio;
+ ha->pio_length = pio_len;
+ ha->reg = ioremap(mmio, MIN_IOBASE_LEN);
+ if (!ha->reg) {
+ ql4_printk(KERN_ERR, ha,
+ "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
+
+ goto iospace_error_exit;
+ }
+
+ return 0;
+
+iospace_error_exit:
+ return -ENOMEM;
+}
+
+/**
+ * qla4xxx_config_dma_addressing() - Configure OS DMA addressing method.
+ * @ha: HA context
+ *
+ * At exit, the @ha's flags.enable_64bit_addressing set to indicated
+ * supported addressing method.
+ */
-ENEEDSKERNELDOC
+void
+qla4xxx_config_dma_addressing(scsi_qla_host_t * ha)
+{
+ int retval;
+
+ /* Update our PCI device dma_mask for full 64 bit mask */
+ if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK) == 0) {
+ if (pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
+ ql4_printk(KERN_DEBUG, ha,
+ "Failed to set 64 bit PCI consistent mask; "
+ "using 32 bit.\n");
+ retval = pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
+ }
+ } else
+ retval = pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK);
+}
+
+/**************************************************************************
+ * qla4xxx_mem_alloc
+ * This routine allocates memory use by the adapter.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully allocated adapter memory
+ * QLA_ERROR - Failed to allocate adapter memory
+ *
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_mem_alloc(scsi_qla_host_t * ha)
+{
+ unsigned long align;
+
+ /* Allocate contiguous block of DMA memory for queues. */
+ ha->queues_len = ((REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
+ (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE) + sizeof(shadow_regs_t) +
+ MEM_ALIGN_VALUE + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
+ ha->queues = dma_alloc_coherent(&ha->pdev->dev, ha->queues_len,
+ &ha->queues_dma, GFP_KERNEL);
+ if (ha->queues == NULL) {
+ ql4_printk(KERN_WARNING, ha,
+ "Memory Allocation failed - queues.\n");
+
+ goto mem_alloc_error_exit;
+ }
+ memset(ha->queues, 0, ha->queues_len);
+
+ /*
+ * As per RISC alignment requirements -- the bus-address must be a
+ * multiple of the request-ring size (in bytes).
+ */
+ align = 0;
+ if ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1))
+ align = MEM_ALIGN_VALUE -
+ ((unsigned long)ha->queues_dma & (MEM_ALIGN_VALUE - 1));
+
+ /* Update request and response queue pointers. */
+ ha->request_dma = ha->queues_dma + align;
+ ha->request_ring = (QUEUE_ENTRY *) (ha->queues + align);
+ ha->response_dma = ha->queues_dma + align +
+ (REQUEST_QUEUE_DEPTH * QUEUE_SIZE);
+ ha->response_ring = (QUEUE_ENTRY *) (ha->queues + align +
+ (REQUEST_QUEUE_DEPTH * QUEUE_SIZE));
+ ha->shadow_regs_dma = ha->queues_dma + align +
+ (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
+ (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE);
+ ha->shadow_regs = (shadow_regs_t *) (ha->queues + align +
+ (REQUEST_QUEUE_DEPTH * QUEUE_SIZE) +
+ (RESPONSE_QUEUE_DEPTH * QUEUE_SIZE));
+
+ /* Allocate memory for srb pool. */
+ ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
+ mempool_free_slab, srb_cachep);
+ if (ha->srb_mempool == NULL) {
+ ql4_printk(KERN_WARNING, ha,
+ "Memory Allocation failed - SRB Pool.\n");
+
+ goto mem_alloc_error_exit;
+ }
+
+ return QLA_SUCCESS;
+
+mem_alloc_error_exit:
+ qla4xxx_mem_free(ha);
+ return QLA_ERROR;
+}
+
+/**************************************************************************
+ * qla4xxx_mem_free
+ * This routine frees adapter allocated memory
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ * None
+ **************************************************************************/
-ENEEDSKERNELDOC
+static void
+qla4xxx_mem_free(scsi_qla_host_t * ha)
+{
+ if (ha->queues)
+ dma_free_coherent(&ha->pdev->dev, ha->queues_len, ha->queues,
+ ha->queues_dma);
+
+ ha->queues_len = 0;
+ ha->queues = NULL;
+ ha->queues_dma = 0;
+ ha->request_ring = NULL;
+ ha->request_dma = 0;
+ ha->response_ring = NULL;
+ ha->response_dma = 0;
+ ha->shadow_regs = NULL;
+ ha->shadow_regs_dma = 0;
+
+ /* Free srb pool. */
+ if (ha->srb_mempool)
+ mempool_destroy(ha->srb_mempool);
+
+ ha->srb_mempool = NULL;
+
+ /* Free ddb list. */
+ if (!list_empty(&ha->ddb_list))
+ qla4xxx_free_ddb_list(ha);
+
+ /* release io space registers */
+ if (ha->reg)
+ iounmap(ha->reg);
+ pci_release_regions(ha->pdev);
+}
+
+static int
+qla4xxx_slave_alloc(struct scsi_device *sdev)
+{
+ struct ddb_entry *ddb;
+ scsi_qla_host_t *ha = to_qla_host(sdev->host);
+
+ ddb = qla4xxx_lookup_ddb_by_fw_index(ha, sdev->id);
+ if (!ddb)
+ return -ENXIO;
+
+ sdev->hostdata = ddb;
+ return 0;
+}
+
+static void
+qla4xxx_slave_destroy(struct scsi_device *sdev)
+{
+ sdev->hostdata = NULL;
+}
+
+static int
+qla4xxx_slave_configure(struct scsi_device *sdev)
+{
+ if (sdev->tagged_supported)
+ scsi_activate_tcq(sdev, 32);
+ else
+ scsi_deactivate_tcq(sdev, 32);
+
+ //iscsi_port
+
+ return 0;
+}
+
+/**************************************************************************
+ * del_from_active_array
+ * This routine removes and returns the srb at the specified index
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ * index - index into to the active_array
+ *
+ * Returns:
+ * Pointer to corresponding SCSI Request Block
+ **************************************************************************/
-ENEEDSKERNELDOC
+srb_t *
+del_from_active_array(scsi_qla_host_t * ha, uint32_t index)
+{
+ srb_t *srb = NULL;
+
+ /* validate handle and remove from active array */
+ if (index >= MAX_SRBS)
+ return srb;
+
+ srb = ha->active_srb_array[index];
+ ha->active_srb_array[index] = 0;
+ if (!srb)
+ return srb;
+
+ /* update counters */
+ if (srb->flags & SRB_DMA_VALID) {
+ ha->req_q_count += srb->iocb_cnt;
+ ha->iocb_cnt -= srb->iocb_cnt;
+ if (srb->cmd)
+ srb->cmd->host_scribble = NULL;
+ }
+ return srb;
+}
+
+/**************************************************************************
+ * qla4xxx_timer
+ * This routine is scheduled to be invoked every second to search for
+ * work to do.
+ *
+ * Input:
+ * p - Pointer to host adapter structure.
+ *
+ * Returns:
+ * None
+ **************************************************************************/
-ENEEDSKERNELDOC
+void
+qla4xxx_timer(scsi_qla_host_t *ha)
+{
+ ddb_entry_t *ddb_entry, *dtemp;
+ int start_dpc = 0;
+
+ /* Search for relogin's to time-out and port down retry. */
+ list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) {
+ /*
+ * First check to see if the device has exhausted the port
+ * down retry count.
+ */
+ if (atomic_read(&ddb_entry->state) == DDB_STATE_MISSING) {
+ if (atomic_read(&ddb_entry->port_down_timer) == 0)
+ continue;
+
+ if (atomic_dec_and_test(&ddb_entry->port_down_timer)) {
+ DEBUG2(printk("scsi%ld: %s: index [%d] port "
+ "down retry count of (%d) secs exhausted, "
+ "marking device DEAD.\n", ha->host_no,
+ __func__, ddb_entry->fw_ddb_index,
+ ha->port_down_retry_count));
-EPRINTKMISSINGLEVEL
+
+ atomic_set(&ddb_entry->state,
+ DDB_STATE_DEAD);
+
+ DEBUG2(printk("scsi%ld: %s: index [%d] marked "
+ "DEAD\n", ha->host_no, __func__,
+ ddb_entry->fw_ddb_index));
-EPRINTKMISSINGLEVEL
+ start_dpc++;
+ }
+ }
+
+ /* Count down time between sending relogins */
+ if (ADAPTER_UP(ha) &&
+ !test_bit(DF_RELOGIN, &ddb_entry->flags) &&
+ atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
+ if (atomic_read(&ddb_entry->retry_relogin_timer) !=
+ INVALID_ENTRY) {
+ if (atomic_read(&ddb_entry->retry_relogin_timer)
-ELINETOOLONG
+ == 0) {
+ atomic_set(
+ &ddb_entry->retry_relogin_timer,
+ INVALID_ENTRY);
+ set_bit(DPC_RELOGIN_DEVICE,
+ &ha->dpc_flags);
+ set_bit(DF_RELOGIN, &ddb_entry->flags);
+ DEBUG2(printk("scsi%ld: %s: index [%d] "
-ELINETOOLONG
+ "login device\n", ha->host_no,
+ __func__, ddb_entry->fw_ddb_index));
-ELINETOOLONG
+ } else
+ atomic_dec(
+ &ddb_entry->retry_relogin_timer);
+ }
+ }
+
+ /* Wait for relogin to timeout */
+ if (atomic_read(&ddb_entry->relogin_timer) &&
+ (atomic_dec_and_test(&ddb_entry->relogin_timer) != 0)) {
+ /*
+ * If the relogin times out and the device is
+ * still NOT ONLINE then try and relogin again.
+ */
+ if (atomic_read(&ddb_entry->state) !=
+ DDB_STATE_ONLINE &&
+ ddb_entry->fw_ddb_device_state ==
+ DDB_DS_SESSION_FAILED) {
+ /* Reset retry relogin timer */
+ atomic_inc(&ddb_entry->relogin_retry_count);
+ DEBUG2(printk("scsi%ld: index[%d] relogin "
+ "timed out-retrying relogin (%d)\n",
+ ha->host_no, ddb_entry->fw_ddb_index,
-EPRINTKMISSINGLEVEL
+ atomic_read(
+ &ddb_entry->relogin_retry_count)));
+ start_dpc++;
+ DEBUG(printk("scsi%ld:%d:%d: index [%d] "
+ "initate relogin after %d seconds\n",
+ ha->host_no, ddb_entry->bus,
+ ddb_entry->target, ddb_entry->fw_ddb_index,
+ ddb_entry->default_time2wait + 4));
-EPRINTKMISSINGLEVEL
+
+ atomic_set(&ddb_entry->retry_relogin_timer,
+ ddb_entry->default_time2wait + 4);
+ }
+ }
+ }
+
+ /* Check for heartbeat interval. */
+ if (ha->firmware_options & FWOPT_HEARTBEAT_ENABLE &&
+ ha->heartbeat_interval != 0) {
+ ha->seconds_since_last_heartbeat++;
+ if (ha->seconds_since_last_heartbeat >
+ ha->heartbeat_interval + 2)
+ set_bit(DPC_RESET_HA, &ha->dpc_flags);
+ }
+
+
+ /* Wakeup the dpc routine for this adapter, if needed. */
+ if ((start_dpc ||
+ test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
+ test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
+ test_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags) ||
+ test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags) ||
+ test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
+ test_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags) ||
+ test_bit(DPC_AEN, &ha->dpc_flags)) &&
+ !test_bit(AF_DPC_SCHEDULED, &ha->flags) &&
+ ha->dpc_thread) {
+ DEBUG2(printk("scsi%ld: %s: scheduling dpc routine - dpc flags "
+ "= 0x%lx\n", ha->host_no, __func__, ha->dpc_flags));
-EPRINTKMISSINGLEVEL
+ set_bit(AF_DPC_SCHEDULED, &ha->flags);
+ wake_up_process(ha->dpc_thread);
+ }
+
+ /* Reschedule timer thread to call us back in one second */
+ mod_timer(&ha->timer, jiffies + HZ);
+
+ DEBUG2(ha->seconds_since_last_intr++;)
+}
+
+
+/**************************************************************************
+ * qla4xxx_do_dpc
+ * This routine is a task that is schedule by the interrupt handler
+ * to perform the background processing for interrupts. We put it
+ * on a task queue that is consumed whenever the scheduler runs; that's
+ * so you can do anything (i.e. put the process to sleep etc). In fact,
+ * the mid-level tries to sleep when it reaches the driver threshold
+ * "host->can_queue". This can cause a panic if we were in our interrupt
+ * code.
+ *
+ * Input:
+ * p - Pointer to host adapter structure.
+ *
+ * Returns:
+ * None
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int qla4xxx_do_dpc(void *data)
+{
+ scsi_qla_host_t *ha = (scsi_qla_host_t *) data;
+ ddb_entry_t *ddb_entry, *dtemp;
+
+ set_user_nice(current, -20);
+
+ while (!kthread_should_stop()) {
+ DEBUG2(printk("scsi%ld: %s: DPC handler sleeping.\n",
+ ha->host_no, __func__));
-EPRINTKMISSINGLEVEL
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule();
+ __set_current_state(TASK_RUNNING);
+
+ DEBUG2(printk("scsi%ld: %s: DPC handler waking up.\n",
+ ha->host_no, __func__));
-EPRINTKMISSINGLEVEL
+
+ DEBUG2(printk("scsi%ld: %s: ha->flags = 0x%08lx\n", ha->host_no,
+ __func__, ha->flags));
-ELINETOOLONG
-EPRINTKMISSINGLEVEL
+ DEBUG2(printk("scsi%ld: %s: ha->dpc_flags = 0x%08lx\n",
+ ha->host_no, __func__, ha->dpc_flags));
-EPRINTKMISSINGLEVEL
+
+ /* Initialization not yet finished. Don't do anything yet. */
+ if (!test_bit(AF_INIT_DONE, &ha->flags))
+ continue;
+
+ ha->dpc_active = 1;
+ clear_bit(AF_DPC_SCHEDULED, &ha->flags);
+
+ if (ADAPTER_UP(ha) ||
+ test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
+ test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
+ test_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags)) {
+ if (test_bit(DPC_RESET_HA_DESTROY_DDB_LIST,
+ &ha->dpc_flags))
+ /*
+ * dg 09/23 Never initialize ddb list
+ * once we up and running
+ * qla4xxx_recover_adapter(ha,
+ * REBUILD_DDB_LIST);
+ */
+ qla4xxx_recover_adapter(ha,
+ PRESERVE_DDB_LIST);
+
+ if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
+ qla4xxx_recover_adapter(ha,
+ PRESERVE_DDB_LIST);
+
+ if (test_and_clear_bit(DPC_RESET_HA_INTR,
+ &ha->dpc_flags)) {
+ uint8_t wait_time = RESET_INTR_TOV;
+ unsigned long flags = 0;
+
+ qla4xxx_flush_active_srbs(ha);
+
+ spin_lock_irqsave(&ha->hardware_lock,
+ flags);
+ while ((RD_REG_DWORD(
+ &ha->reg->ctrl_status) &
+ (CSR_SOFT_RESET|
+ CSR_FORCE_SOFT_RESET)) != 0) {
+ if (--wait_time == 0)
+ break;
+
+ spin_unlock_irqrestore(
+ &ha->hardware_lock, flags);
+
+ msleep(1000);
+
+ spin_lock_irqsave(
+ &ha->hardware_lock, flags);
+ }
+ spin_unlock_irqrestore(
+ &ha->hardware_lock, flags);
+
+ if (wait_time == 0)
+ DEBUG2(printk(
+ "scsi%ld: %s: SR|FSR bit "
+ "not cleared-- resetting\n",
+ ha->host_no, __func__));
-EPRINTKMISSINGLEVEL
+ }
+ }
+
+ /* ---- process AEN? --- */
+ if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
+ qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
+
+ /* ---- Get DHCP IP Address? --- */
+ if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
+ qla4xxx_get_dhcp_ip_address(ha);
+
+ /* ---- relogin device? --- */
+ if (ADAPTER_UP(ha) &&
+ test_and_clear_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags)) {
+ list_for_each_entry_safe(ddb_entry, dtemp,
+ &ha->ddb_list, list) {
+ if (test_and_clear_bit(DF_RELOGIN,
+ &ddb_entry->flags) &&
+ atomic_read(&ddb_entry->state) !=
+ DDB_STATE_ONLINE) {
+ qla4xxx_relogin_device(ha, ddb_entry);
+ }
+ /* If mbx cmd times out there is no point
+ * in continuing further.
+ * With large no of targets this can hang
+ * the system.
+ */
+ if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
+ printk(KERN_WARNING "scsi%ld: %s: "
+ "need to reset hba\n",
+ ha->host_no, __func__);
+ break;
+ }
+ }
+ }
+
+ ha->dpc_active = 0;
+ }
+
+ /* Make sure that nobody tries to wake us up again. */
+ ha->dpc_active = 0;
+
+ return 0;
+}
+
+/**************************************************************************
+ * qla4010_soft_reset
+ * This routine performs a SOFT RESET.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully reset the firmware
+ * QLA_ERROR - Failed to reset the firmware
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4010_soft_reset(scsi_qla_host_t * ha)
+{
+ uint32_t max_wait_time;
+ unsigned long flags = 0;
+ int status = QLA_ERROR;
+ uint32_t ctrl_status;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+
+ /*
+ * If the SCSI Reset Interrupt bit is set, clear it.
+ * Otherwise, the Soft Reset won't work.
+ */
+ ctrl_status = RD_REG_DWORD(&ha->reg->ctrl_status);
+ if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0)
+ WRT_REG_DWORD(&ha->reg->ctrl_status,
+ SET_RMASK(CSR_SCSI_RESET_INTR));
+
+ /* Issue Soft Reset */
+ WRT_REG_DWORD(&ha->reg->ctrl_status, SET_RMASK(CSR_SOFT_RESET));
+ PCI_POSTING(&ha->reg->ctrl_status);
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ /* Wait until the Network Reset Intr bit is cleared */
+ max_wait_time = RESET_INTR_TOV;
+ do {
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ ctrl_status = RD_REG_DWORD(&ha->reg->ctrl_status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ if ((ctrl_status & CSR_NET_RESET_INTR) == 0)
+ break;
+
+ msleep(1000);
+ } while ((--max_wait_time));
+
+ if ((ctrl_status & CSR_NET_RESET_INTR) != 0) {
+ DEBUG2(printk(KERN_WARNING
+ "scsi%ld: Network Reset Intr not cleared by Network "
+ "function, clearing it now!\n", ha->host_no));
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ WRT_REG_DWORD(&ha->reg->ctrl_status,
+ SET_RMASK(CSR_NET_RESET_INTR));
+ PCI_POSTING(&ha->reg->ctrl_status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ }
+
+ /* Wait until the firmware tells us the Soft Reset is done */
+ max_wait_time = SOFT_RESET_TOV;
+ do {
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ ctrl_status = RD_REG_DWORD(&ha->reg->ctrl_status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ if ((ctrl_status & CSR_SOFT_RESET) == 0) {
+ status = QLA_SUCCESS;
+ break;
+ }
+
+ msleep(1000);
+ } while ((--max_wait_time));
+
+ /*
+ * Also, make sure that the SCSI Reset Interrupt bit has been cleared
+ * after the soft reset has taken place.
+ */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ ctrl_status = RD_REG_DWORD(&ha->reg->ctrl_status);
+ if ((ctrl_status & CSR_SCSI_RESET_INTR) != 0) {
+ WRT_REG_DWORD(&ha->reg->ctrl_status,
+ SET_RMASK(CSR_SCSI_RESET_INTR));
+ PCI_POSTING(&ha->reg->ctrl_status);
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ /* If soft reset fails then most probably the bios on other
+ * function is also enabled.
+ * Since the initialization is sequential the other fn
+ * wont be able to acknowledge the soft reset.
+ * Issue a force soft reset to workaround this scenario.
+ */
+ if (max_wait_time == 0) {
+ /* Issue Force Soft Reset */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ WRT_REG_DWORD(&ha->reg->ctrl_status,
+ SET_RMASK(CSR_FORCE_SOFT_RESET));
+ PCI_POSTING(&ha->reg->ctrl_status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ /* Wait until the firmware tells us the Soft Reset is done */
+ max_wait_time = SOFT_RESET_TOV;
+ do {
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ ctrl_status = RD_REG_DWORD(&ha->reg->ctrl_status);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ if ((ctrl_status & CSR_FORCE_SOFT_RESET) == 0) {
+ status = QLA_SUCCESS;
+ break;
+ }
+
+ msleep(1000);
+ } while ((--max_wait_time));
+ }
+
+ return (status);
+}
+
+/**************************************************************************
+ * qla4xxx_topcat_reset
+ * This routine performs a HARD RESET of the TopCat chip.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully reset the firmware
+ * QLA_ERROR - Failed to reset the firmware
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4xxx_topcat_reset(scsi_qla_host_t * ha)
+{
+ unsigned long flags;
+
+ QL4XXX_LOCK_NVRAM(ha);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ WRT_REG_DWORD(ISP_GP_OUT(ha), SET_RMASK(GPOR_TOPCAT_RESET));
+ PCI_POSTING(ISP_GP_OUT(ha));
+ do {
+ mdelay(1);
+ } while (0);
+ WRT_REG_DWORD(ISP_GP_OUT(ha), CLR_RMASK(GPOR_TOPCAT_RESET));
+ PCI_POSTING(ISP_GP_OUT(ha));
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ do {
+ mdelay(2523);
+ } while (0);
+ QL4XXX_UNLOCK_NVRAM(ha);
+ return (QLA_SUCCESS);
-ERETURNISNOTFUNC
+}
+
+/**************************************************************************
+ * qla4xxx_soft_reset
+ * This routine performs a SOFT RESET.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully reset the firmware
+ * QLA_ERROR - Failed to reset the firmware
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4xxx_soft_reset(scsi_qla_host_t * ha)
+{
+
+ DEBUG2(printk(KERN_WARNING "scsi%ld: %s: chip reset!\n", ha->host_no,
+ __func__));
-EPRINTKMISSINGLEVEL
+ if (test_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags)) {
+ int status = QLA_ERROR;
+
+ if (qla4010_soft_reset(ha) == QLA_SUCCESS) {
+ if (qla4xxx_topcat_reset(ha) == QLA_SUCCESS) {
+ if (qla4010_soft_reset(ha) == QLA_SUCCESS) {
+ status = QLA_SUCCESS;
+ }
+ }
+ }
+ return (status);
-ERETURNISNOTFUNC
+ } else
+ return qla4010_soft_reset(ha);
+}
+
+/**************************************************************************
+ * qla4xxx_hard_reset
+ * This routine performs a HARD RESET.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully reset the firmware
+ * QLA_ERROR - Failed to reset the firmware
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4xxx_hard_reset(scsi_qla_host_t * ha)
+{
+ /* The QLA4010 really doesn't have an equivalent to a hard reset */
+ qla4xxx_flush_active_srbs(ha);
+ if (test_bit(AF_TOPCAT_CHIP_PRESENT, &ha->flags)) {
+ int status = QLA_ERROR;
+
+ if (qla4010_soft_reset(ha) == QLA_SUCCESS) {
+ if (qla4xxx_topcat_reset(ha) == QLA_SUCCESS) {
+ if (qla4010_soft_reset(ha) == QLA_SUCCESS) {
+ status = QLA_SUCCESS;
+ }
+ }
+ }
+ return status;
+ } else
+ return qla4010_soft_reset(ha);
+}
+
+/**************************************************************************
+ * qla4xxx_cmd_wait
+ * This routine stalls the driver until all outstanding commands are
+ * returned.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Remarks:
+ * Caller must release the Hardware Lock prior to calling this routine.
+ *
+ * Returns:
+ * QLA_SUCCESS - All outstanding commands completed
+ * QLA_ERROR - All outstanding commands did not complete
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_cmd_wait(scsi_qla_host_t * ha)
+{
+ uint32_t index = 0;
+ int stat = QLA_SUCCESS;
+ unsigned long flags;
+ int wait_cnt = WAIT_CMD_TOV; /*
+ * Initialized for 30 seconds as we
+ * expect all commands to retuned
+ * ASAP.
+ */
+
+ while (wait_cnt) {
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ /* Find a command that hasn't completed. */
+ for (index = 1; index < MAX_SRBS; index++) {
+ if (ha->active_srb_array[index] != NULL)
+ break;
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+ /* If No Commands are pending, wait is complete */
+ if (index == MAX_SRBS) {
+ break;
+ }
+
+ /* If we timed out on waiting for commands to come back
+ * return ERROR.
+ */
+ wait_cnt--;
+ if (wait_cnt == 0)
+ stat = QLA_ERROR;
+ else {
+ msleep(1000);
+ }
+ } /* End of While (wait_cnt) */
+
+ return (stat);
-ERETURNISNOTFUNC
+}
+
+/**************************************************************************
+ * qla4xxx_recover_adapter
+ * This routine recovers that adapter from a fatal state.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ * renew_ddb_list - Indicates what to do with the adapter's ddb list
+ * after adapter recovery has completed.
+ * 0=preserve ddb list, 1=destroy and rebuild ddb list
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully recovered adapter
+ * QLA_ERROR - Failed to recover adapter
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4xxx_recover_adapter(scsi_qla_host_t * ha, uint8_t renew_ddb_list)
+{
+ int status = QLA_SUCCESS;
+
+ /* Stall incoming I/O until we are done */
+ clear_bit(AF_ONLINE, &ha->flags);
+ DEBUG2(printk("scsi%ld: %s calling qla4xxx_cmd_wait\n", ha->host_no,
+ __func__));
-EPRINTKMISSINGLEVEL
+
+ /* Wait for outstanding commands to complete.
+ * Stalls the driver for max 30 secs
+ */
+ status = qla4xxx_cmd_wait(ha);
+
+ qla4xxx_disable_intrs(ha);
+
+ /* Flush any pending ddb changed AENs */
+ qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
+
+ /* Reset the firmware. If successful, function
+ * returns with ISP interrupts enabled.
+ */
+ if (status == QLA_SUCCESS) {
+ DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
+ ha->host_no, __func__));
-EPRINTKMISSINGLEVEL
+ status = qla4xxx_soft_reset(ha);
+ }
+ /* FIXMEkaren: Do we want to keep interrupts enabled and process
+ AENs after soft reset */
+
+ /* If firmware (SOFT) reset failed, or if all outstanding
+ * commands have not returned, then do a HARD reset.
+ */
+ if (status == QLA_ERROR) {
+ DEBUG2(printk("scsi%ld: %s - Performing hard reset..\n",
+ ha->host_no, __func__));
+ status = qla4xxx_hard_reset(ha);
+ }
+
+ /* Flush any pending ddb changed AENs */
+ qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
+
+ /* Re-initialize firmware. If successful, function returns
+ * with ISP interrupts enabled */
+ if (status == QLA_SUCCESS) {
+ DEBUG2(printk("scsi%ld: %s - Initializing adapter..\n",
+ ha->host_no, __func__));
+
+ /* If successful, AF_ONLINE flag set in
+ * qla4xxx_initialize_adapter */
+ status = qla4xxx_initialize_adapter(ha, renew_ddb_list);
+ }
+
+ /* Failed adapter initialization?
+ * Retry reset_ha only if invoked via DPC (DPC_RESET_HA) */
+ if ((test_bit(AF_ONLINE, &ha->flags) == 0) &&
+ (test_bit(DPC_RESET_HA, &ha->dpc_flags))) {
+ /* Adapter initialization failed, see if we can retry
+ * resetting the ha */
+ if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
+ ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
+ DEBUG2(printk("scsi%ld: recover adapter - retrying "
+ "(%d) more times\n", ha->host_no,
+ ha->retry_reset_ha_cnt));
+ set_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
+ status = QLA_ERROR;
+ } else {
+ if (ha->retry_reset_ha_cnt > 0) {
+ /* Schedule another Reset HA--DPC will retry */
+ ha->retry_reset_ha_cnt--;
+ DEBUG2(printk("scsi%ld: recover adapter - "
+ "retry remaining %d\n", ha->host_no,
+ ha->retry_reset_ha_cnt));
+ status = QLA_ERROR;
+ }
+
+ if (ha->retry_reset_ha_cnt == 0) {
+ /* Recover adapter retries have been exhausted.
+ * Adapter DEAD */
+ DEBUG2(printk("scsi%ld: recover adapter "
+ "failed - board disabled\n", ha->host_no));
+ qla4xxx_flush_active_srbs(ha);
+ clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
+ clear_bit(DPC_RESET_HA, &ha->dpc_flags);
+ clear_bit(DPC_RESET_HA_DESTROY_DDB_LIST,
+ &ha->dpc_flags);
+ status = QLA_ERROR;
+ }
+ }
+ } else {
+ clear_bit(DPC_RESET_HA, &ha->dpc_flags);
+ clear_bit(DPC_RESET_HA_DESTROY_DDB_LIST, &ha->dpc_flags);
+ clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
+ }
+
+ ha->adapter_error_count++;
+
+ if (status == QLA_SUCCESS)
+ qla4xxx_enable_intrs(ha);
+
+ DEBUG2(printk("scsi%ld: recover adapter .. DONE\n", ha->host_no));
-EPRINTKMISSINGLEVEL
+ return (status);
-ERETURNISNOTFUNC
+}
+
+
+/**************************************************************************
+ * qla4xxx_eh_wait_on_command
+ * This routine waits for the command to be returned by the Firmware
+ * for some max time.
+ *
+ * Input:
+ * ha = actual ha whose done queue will contain the command
+ * returned by firmware.
+ * cmd = Scsi Command to wait on.
+ *
+ * Returns:
+ * Not Found : 0
+ * Found : 1
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_eh_wait_on_command(scsi_qla_host_t * ha, struct scsi_cmnd *cmd)
+{
+ int done = 0;
+ srb_t *rp;
+ uint32_t max_wait_time = EH_WAIT_CMD_TOV;
+
+ do {
+ /* Checking to see if its returned to OS */
+ rp = (srb_t *) CMD_SP(cmd);
+ if (rp == NULL) {
+ done++;
+ break;
+ }
+
+ msleep(2000);
+ } while (max_wait_time--);
+
+ return done;
+}
+
+/**************************************************************************
+ * qla4xxx_wait_for_hba_online
+ * This routine
+ *
+ * Input:
+ * ha - Pointer to host adapter structure
+ *
+ * Remarks:
+ *
+ * Returns:
+ * SUCCESS - Adapter is ONLINE
+ * FAILED - Adapter is DEAD
+ **************************************************************************/
-ENEEDSKERNELDOC
+int qla4xxx_wait_for_hba_online(scsi_qla_host_t * ha)
+{
+ unsigned long wait_online;
+
+ wait_online = jiffies + (30 * HZ);
+ while (time_before(jiffies, wait_online)) {
+ if (ADAPTER_UP(ha))
+ return QLA_SUCCESS;
+
+ if (!ADAPTER_UP(ha) && (ha->retry_reset_ha_cnt == 0)) {
+ return QLA_ERROR;
+ }
+ msleep(2000);
+ }
+
+ return QLA_ERROR;
+}
+
+/**************************************************************************
+ * qla4xxx_eh_abort
+ * This routine aborts commands that currently held in the adapter's
+ * internal queues. Commands that are active are NOT aborted.
+ *
+ * Input:
+ * cmd - Pointer to Linux's SCSI command structure
+ *
+ * Remarks:
+ * Aborts get translated to "device resets" by the scsi switch
+ * which will return a RESET status and not ABORT. Since the
+ * mid-level is expecting an ABORT status during an abort(),
+ * we always elevate to device reset.
+ *
+ * Returns:
+ * SUCCESS - Successfully aborted non-active command
+ * FAILED - Command not found, or command currently active
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_eh_abort(struct scsi_cmnd *cmd)
+{
Is there ever a successful outcome for this func?
+ if (!CMD_SP(cmd))
+ return FAILED;
+
+ /*
+ * Aborts get translated to "device resets" by some scsi switches which
+ * will return a RESET status and not ABORT. Since the mid-level is
+ * expecting an ABORT status during an abort(), we always elevate to
+ * device reset.
+ */
+ return FAILED;
+}
+
+/**************************************************************************
+ * qla4xxx_eh_wait_for_active_target_commands
+ * This routine
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ * target - SCSI target ID
+ *
+ * Returns:
+ * 0 - All pending commands returned
+ * non-zero - All pending commands did not return
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4xxx_eh_wait_for_active_target_commands(scsi_qla_host_t * ha, int t, int l)
+{
+ int cnt;
+ int status;
+ srb_t *sp;
+ struct scsi_cmnd *cmd;
+
+ /*
+ * Waiting for all commands for the designated target in the active
+ * array
+ */
+ status = 0;
+ for (cnt = 1; cnt < MAX_SRBS; cnt++) {
+ spin_lock(&ha->hardware_lock);
+ sp = ha->active_srb_array[cnt];
+ if (sp) {
+ cmd = sp->cmd;
+ spin_unlock(&ha->hardware_lock);
+ if (cmd->device->id == t && cmd->device->lun == l) {
+ if (!qla4xxx_eh_wait_on_command(ha, cmd)) {
+ status++;
+ break;
+ }
+ }
+ } else {
+ spin_unlock(&ha->hardware_lock);
+ }
+ }
+ return status;
+}
+
+/**************************************************************************
+ * qla4xxx_eh_device_reset
+ * This routine is called by the Linux OS to reset all luns on the
+ * specified target.
+ *
+ * Input:
+ * cmd - Pointer to Linux's SCSI command structure
+ *
+ * Output:
+ * None
+ *
+ * Remarks:
+ * None
+ *
+ * Returns:
+ * SUCCESS - Successfully reset target/lun
+ * FAILED - Failed to reset target/lun
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
+{
+ scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
+ struct ddb_entry *ddb_entry = (struct ddb_entry *)cmd->device->hostdata;
-ECASTNOTNEEDED
-ELINETOOLONG
+ srb_t *sp;
+ int ret = FAILED, stat;
+
+ sp = (srb_t *) CMD_SP(cmd);
+ if (!sp || !ddb_entry)
+ return ret;
+
+ ql4_printk(KERN_INFO, ha,
+ "scsi%ld:%d:%d:%d: DEVICE RESET ISSUED.\n", ha->host_no,
+ cmd->device->channel, cmd->device->id, cmd->device->lun);
+
+ DEBUG2(printk(KERN_INFO
+ "scsi%ld: DEVICE_RESET cmd=%p jiffies = 0x%lx, timeout=%x, "
+ "dpc_flags=%lx, status=%x allowed=%d\n", ha->host_no,
+ cmd, jiffies, cmd->timeout_per_command / HZ, ha->dpc_flags,
+ cmd->result, cmd->allowed));
+
+ /* FIXme: wait for hba to go online */
+ stat = qla4xxx_reset_lun(ha, ddb_entry, cmd->device->lun);
+ if (stat != QLA_SUCCESS) {
+ ql4_printk(KERN_INFO, ha, "DEVICE RESET FAILED. %d\n", stat);
+
+ goto eh_dev_reset_done;
+ }
+
+ /* Send marker. */
+ ha->marker_needed = 1;
+
+ /*
+ * If we are coming down the EH path, wait for all commands to complete
+ * for the device.
+ */
+ if (cmd->device->host->shost_state == SHOST_RECOVERY) {
+ if (qla4xxx_eh_wait_for_active_target_commands(ha,
+ cmd->device->id, cmd->device->lun)) {
+ ql4_printk(KERN_INFO, ha,
+ "DEVICE RESET FAILED - waiting for commands.\n");
+ goto eh_dev_reset_done;
+ }
+ }
+
+ ql4_printk(KERN_INFO, ha,
+ "scsi(%ld:%d:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
+ cmd->device->channel, cmd->device->id, cmd->device->lun);
+
+ ret = SUCCESS;
+
+eh_dev_reset_done:
+
+ return ret;
+}
+
+/**************************************************************************
+ * qla4xxx_eh_bus_reset
+ * This routine is called by the Linux OS to reset the specified
+ * adapter/bus.
+ *
+ * Input:
+ * cmd - Pointer to Linux's SCSI command structure
+ *
+ * Returns:
+ * SUCCESS - Successfully reset adapter/bus
+ * FAILED - Failed to reset adapter/bus
+ *
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_eh_bus_reset(struct scsi_cmnd *cmd)
+{
+ int status = QLA_SUCCESS;
+ int return_status = FAILED;
+ scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
+ struct ddb_entry *ddb_entry = (struct ddb_entry *)cmd->device->hostdata;
-ECASTNOTNEEDED
+ ddb_entry_t *dtemp;
+
+ ha = (scsi_qla_host_t *) cmd->device->host->hostdata;
+
+ ql4_printk(KERN_INFO, ha,
+ "scsi(%ld:%d:%d:%d): BUS RESET ISSUED.\n", ha->host_no,
+ cmd->device->channel, cmd->device->id, cmd->device->lun);
+
+ if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
+ DEBUG2(printk("scsi%ld:%d: %s: Unable to reset bus. Adapter "
+ "DEAD.\n", ha->host_no, cmd->device->channel, __func__));
-EPRINTKMISSINGLEVEL
+
+ return FAILED;
+ }
+
+ /* Attempt to reset all valid targets with outstanding commands */
+ list_for_each_entry_safe(ddb_entry, dtemp, &ha->ddb_list, list) {
+ /* Issue a reset */
+ status |= qla4xxx_reset_target(ha, ddb_entry);
+ }
+
+ /*
+ * Status is QLA_SUCCESS if target resets for ALL devices completed
+ * successfully. Otherwise the status is QLA_ERROR.
+ */
+ if (status == QLA_SUCCESS)
+ return_status = SUCCESS;
+
+ ql4_printk(KERN_INFO, ha, "BUS RESET %s.\n",
+ return_status == FAILED ? "FAILED" : "SUCCEDED");
+
+ return return_status;
+}
+
+/**************************************************************************
+ * qla4xxx_reset_target
+ * This routine issues either a warm or cold target reset to the
+ * specified device.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ * ddb_entry - Pointer to device database entry
+ *
+ * Remarks:
+ * The caller must ensure that the ddb_entry pointer is valid before
+ * calling this routine.
+ *
+ * Returns:
+ * QLA_SUCCESS - Successfully reset target
+ * QLA_ERROR - Failed to reset target
+ **************************************************************************/
-ENEEDSKERNELDOC
+int
+qla4xxx_reset_target(scsi_qla_host_t * ha, ddb_entry_t * ddb_entry)
+{
+ int status = QLA_SUCCESS;
+#if 0
-EREMOVE_DEAD_CODE
+ uint8_t stat;
+
+ /* Reset all LUNs on this target */
+ list_for_each_entry(fclun, &fcport->fcluns, list) {
+ stat = qla4xxx_reset_lun(ha, ddb_entry, fclun);
+ if (stat == QLA_SUCCESS) {
+ /* Send marker. */
+ ha->marker_needed = 1;
+
+ /*
+ * Waiting for all active commands to complete for the
+ * device.
+ */
+ status |=
+ qla4xxx_eh_wait_for_active_target_commands(ha,
+ ddb_entry->
+ target,
+ fclun->
+ lun);
+ } else {
+ status |= QLA_ERROR;
+ }
+ }
+#endif
+
+ if (status == QLA_SUCCESS) {
+ DEBUG2(printk("scsi%ld:%d: device reset SUCCEEDED.\n",
+ ha->host_no, ddb_entry->os_target_id));
-EPRINTKMISSINGLEVEL
+ } else {
+ DEBUG2(printk("scsi%ld:%d: device reset FAILED.\n",
+ ha->host_no, ddb_entry->os_target_id));
-EPRINTKMISSINGLEVEL
+
+ status = QLA_ERROR;
+ }
+
+ return status;
+}
+
+/**************************************************************************
+ * qla4xxx_flush_active_srbs
+ * This routine is called just prior to a HARD RESET to return all
+ * outstanding commands back to the Operating System.
+ *
+ * Input:
+ * ha - Pointer to host adapter structure.
+ *
+ * Remarks:
+ * Caller should make sure that the following locks are released
+ * before this calling routine:
+ * Hardware lock, and io_request_lock.
+ *
+ * Returns:
+ * None
+ **************************************************************************/
-ENEEDSKERNELDOC
+static void
+qla4xxx_flush_active_srbs(scsi_qla_host_t * ha)
+{
+ srb_t *srb;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ for (i = 1; i < MAX_SRBS; i++) {
+ if ((srb = ha->active_srb_array[i]) != NULL) {
+ del_from_active_array(ha, i);
+ srb->cmd->result = DID_RESET << 16;
+ qla4xxx_srb_compl(ha, srb);
+ }
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+}
+
+/**************************************************************************
+ * qla4xxx_eh_host_reset
+ * This routine is invoked by the Linux kernel to perform fatal error
+ * recovery on the specified adapter.
+ *
+ * Input:
+ * cmd - Pointer to Linux's SCSI command structure
+ *
+ * Returns:
+ * SUCCESS - Successfully recovered host adapter
+ * FAILED - Failed to recover host adapter
+ **************************************************************************/
-ENEEDSKERNELDOC
+static int
+qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
+{
+ int return_status = FAILED;
+ scsi_qla_host_t *ha;
+
+ ha = (scsi_qla_host_t *) cmd->device->host->hostdata;
+
+ ql4_printk(KERN_INFO, ha,
+ "scsi(%ld:%d:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no,
+ cmd->device->channel, cmd->device->id, cmd->device->lun);
+
+ if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {
+ DEBUG2(printk("scsi%ld:%d: %s: Unable to reset host. Adapter "
+ "DEAD.\n", ha->host_no, cmd->device->channel, __func__));
-EPRINTKMISSINGLEVEL
+
+ return FAILED;
+ }
+
+ if (qla4xxx_recover_adapter(ha, PRESERVE_DDB_LIST) == QLA_SUCCESS) {
+ return_status = SUCCESS;
+ }
+
+ ql4_printk(KERN_INFO, ha, "HOST RESET %s.\n",
+ return_status == FAILED ? "FAILED" : "SUCCEDED");
+
+ return return_status;
+}
+
+
+static struct pci_device_id qla4xxx_pci_tbl[] = {
+ {
+ .vendor = PCI_VENDOR_ID_QLOGIC,
+ .device = PCI_DEVICE_ID_QLOGIC_ISP4010,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_QLOGIC,
+ .device = PCI_DEVICE_ID_QLOGIC_ISP4022,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ },
+ {0, 0},
+};
+MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
+
+struct pci_driver qla4xxx_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = qla4xxx_pci_tbl,
+ .probe = qla4xxx_probe_adapter,
+ .remove = qla4xxx_remove_adapter,
+};
+
+static int __init
+qla4xxx_module_init(void)
+{
+ int ret;
+
+ /* Allocate cache for SRBs. */
+ srb_cachep = kmem_cache_create("qla4xxx_srbs", sizeof(srb_t), 0,
+ SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (srb_cachep == NULL) {
+ printk(KERN_ERR
+ "qla4xxx: Unable to allocate SRB cache...Failing load!\n");
+ return -ENOMEM;
+ }
+
+ /* Derive version string. */
+ strcpy(qla4xxx_version_str, QLA4XXX_DRIVER_VERSION);
+ if (extended_error_logging)
+ strcat(qla4xxx_version_str, "-debug");
+
+ qla4xxx_transport_template =
+ iscsi_register_transport(&qla4xxx_iscsi_transport_functions);
+ if (!qla4xxx_transport_template)
+ return -ENODEV;
+
+ printk(KERN_INFO "QLogic iSCSI HBA Driver\n");
+ ret = pci_module_init(&qla4xxx_pci_driver);
+ if (ret) {
+ kmem_cache_destroy(srb_cachep);
+ iscsi_unregister_transport(&qla4xxx_iscsi_transport_functions);
+ }
+
+ return ret;
+}
+
+static void __exit
+qla4xxx_module_exit(void)
+{
+ pci_unregister_driver(&qla4xxx_pci_driver);
+ kmem_cache_destroy(srb_cachep);
+ iscsi_unregister_transport(&qla4xxx_iscsi_transport_functions);
+}
+
+module_init(qla4xxx_module_init);
+module_exit(qla4xxx_module_exit);
+
+MODULE_AUTHOR("QLogic Corporation");
+MODULE_DESCRIPTION("QLogic iSCSI HBA Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(QLA4XXX_DRIVER_VERSION);
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