static void be_mcc_queues_destroy(struct beiscsi_hba *phba)
{
- struct be_queue_info *q;
struct be_ctrl_info *ctrl = &phba->ctrl;
+ struct be_dma_mem *ptag_mem;
+ struct be_queue_info *q;
+ int i, tag;
q = &phba->ctrl.mcc_obj.q;
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ tag = i + 1;
+ if (!test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state))
+ continue;
+
+ if (test_bit(MCC_TAG_STATE_TIMEOUT,
+ &ctrl->ptag_state[tag].tag_state)) {
+ ptag_mem = &ctrl->ptag_state[tag].tag_mem_state;
+ if (ptag_mem->size) {
+ pci_free_consistent(ctrl->pdev,
+ ptag_mem->size,
+ ptag_mem->va,
+ ptag_mem->dma);
+ ptag_mem->size = 0;
+ }
+ continue;
+ }
+ /**
+ * If MCC is still active and waiting then wake up the process.
+ * We are here only because port is going offline. The process
+ * sees that (BEISCSI_HBA_ONLINE is cleared) and EIO error is
+ * returned for the operation and allocated memory cleaned up.
+ */
+ if (waitqueue_active(&ctrl->mcc_wait[tag])) {
+ ctrl->mcc_tag_status[tag] = MCC_STATUS_FAILED;
+ ctrl->mcc_tag_status[tag] |= CQE_VALID_MASK;
+ wake_up_interruptible(&ctrl->mcc_wait[tag]);
+ /*
+ * Control tag info gets reinitialized in enable
+ * so wait for the process to clear running state.
+ */
+ while (test_bit(MCC_TAG_STATE_RUNNING,
+ &ctrl->ptag_state[tag].tag_state))
+ schedule_timeout_uninterruptible(HZ);
+ }
+ /**
+ * For MCC with tag_states MCC_TAG_STATE_ASYNC and
+ * MCC_TAG_STATE_IGNORE nothing needs to done.
+ */
+ }
if (q->created) {
beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ);
be_queue_free(phba, q);
}
}
-static void hwi_cleanup_port(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;
- struct hwi_async_pdu_context *pasync_ctx;
- int i, eq_for_mcc, ulp_num;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
-
- be_cmd_iscsi_remove_template_hdr(ctrl);
-
- 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);
- }
- kfree(phwi_context->be_wrbq);
- free_wrb_handles(phba);
-
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
-
- q = &phwi_context->be_def_hdrq[ulp_num];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
-
- q = &phwi_context->be_def_dataq[ulp_num];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
-
- pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
- }
- }
-
- beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
-
- for (i = 0; i < (phba->num_cpus); i++) {
- q = &phwi_context->be_cq[i];
- if (q->created) {
- be_queue_free(phba, q);
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
- }
- }
-
- be_mcc_queues_destroy(phba);
- if (phba->msix_enabled)
- eq_for_mcc = 1;
- else
- eq_for_mcc = 0;
- for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
- q = &phwi_context->be_eq[i].q;
- if (q->created) {
- be_queue_free(phba, q);
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
- }
- }
- /* last communication, indicate driver is unloading */
- beiscsi_cmd_special_wrb(&phba->ctrl, 0);
-}
-
static int be_mcc_queues_create(struct beiscsi_hba *phba,
struct hwi_context_memory *phwi_context)
{
}
}
+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;
+ int i, eq_msix;
+ unsigned int num_processed;
+
+ if (beiscsi_hba_in_error(phba))
+ return;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ if (phba->msix_enabled)
+ eq_msix = 1;
+ else
+ eq_msix = 0;
+
+ for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
+ eq = &phwi_context->be_eq[i].q;
+ eqe = queue_tail_node(eq);
+ num_processed = 0;
+ 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);
+ num_processed++;
+ }
+
+ if (num_processed)
+ hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
+ }
+}
+
+static void hwi_cleanup_port(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;
+ struct hwi_async_pdu_context *pasync_ctx;
+ int i, eq_for_mcc, ulp_num;
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+ beiscsi_cmd_iscsi_cleanup(phba, ulp_num);
+
+ /**
+ * Purge all EQ entries that may have been left out. This is to
+ * workaround a problem we've seen occasionally where driver gets an
+ * interrupt with EQ entry bit set after stopping the controller.
+ */
+ hwi_purge_eq(phba);
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+
+ be_cmd_iscsi_remove_template_hdr(ctrl);
+
+ 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);
+ }
+ kfree(phwi_context->be_wrbq);
+ free_wrb_handles(phba);
+
+ for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+ if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+
+ q = &phwi_context->be_def_hdrq[ulp_num];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+ q = &phwi_context->be_def_dataq[ulp_num];
+ if (q->created)
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+ pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
+ }
+ }
+
+ beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+
+ for (i = 0; i < (phba->num_cpus); i++) {
+ q = &phwi_context->be_cq[i];
+ if (q->created) {
+ be_queue_free(phba, q);
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+ }
+ }
+
+ be_mcc_queues_destroy(phba);
+ if (phba->msix_enabled)
+ eq_for_mcc = 1;
+ else
+ eq_for_mcc = 0;
+ for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
+ q = &phwi_context->be_eq[i].q;
+ if (q->created) {
+ be_queue_free(phba, q);
+ beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+ }
+ }
+ /* last communication, indicate driver is unloading */
+ beiscsi_cmd_special_wrb(&phba->ctrl, 0);
+}
static int hwi_init_port(struct beiscsi_hba *phba)
{
struct hwi_controller *phwi_ctrlr;
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;
- int i, eq_msix;
- unsigned int num_processed;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- if (phba->msix_enabled)
- eq_msix = 1;
- else
- eq_msix = 0;
-
- for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
- eq = &phwi_context->be_eq[i].q;
- eqe = queue_tail_node(eq);
- num_processed = 0;
- 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);
- num_processed++;
- }
-
- if (num_processed)
- hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
- }
-}
-
static void beiscsi_cleanup_port(struct beiscsi_hba *phba)
{
struct ulp_cid_info *ptr_cid_info = NULL;
int ulp_num;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
- beiscsi_cmd_iscsi_cleanup(phba, ulp_num);
-
- hwi_purge_eq(phba);
- hwi_cleanup_port(phba);
kfree(phba->io_sgl_hndl_base);
kfree(phba->eh_sgl_hndl_base);
kfree(phba->ep_array);
}
}
}
-
}
/**
* operational if FW still gets heartbeat from EP FW. Is management
* path really needed to continue further?
*/
- if (beiscsi_hba_in_error(phba))
+ if (!beiscsi_hba_is_online(phba))
return -EIO;
if (!io_task->conn->login_in_progress)
shost = iscsi_job_to_shost(job);
phba = iscsi_host_priv(shost);
- if (beiscsi_hba_in_error(phba)) {
+ if (!beiscsi_hba_is_online(phba)) {
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
"BM_%d : HBA in error 0x%lx\n", phba->state);
return -ENXIO;
phba->ctrl.mcc_tag_status[tag],
msecs_to_jiffies(
BEISCSI_HOST_MBX_TIMEOUT));
+
+ if (!test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ clear_bit(MCC_TAG_STATE_RUNNING,
+ &phba->ctrl.ptag_state[tag].tag_state);
+ pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+ nonemb_cmd.va, nonemb_cmd.dma);
+ return -EIO;
+ }
extd_status = (phba->ctrl.mcc_tag_status[tag] &
CQE_STATUS_ADDL_MASK) >> CQE_STATUS_ADDL_SHIFT;
status = phba->ctrl.mcc_tag_status[tag] & CQE_STATUS_MASK;
beiscsi_log_enable_init(phba, beiscsi_log_enable);
}
-/*
- * beiscsi_quiesce()- Cleanup Driver resources
- * @phba: Instance Priv structure
- *
- * Free the OS and HW resources held by the driver
- **/
-static void beiscsi_quiesce(struct beiscsi_hba *phba)
+void beiscsi_start_boot_work(struct beiscsi_hba *phba, unsigned int s_handle)
{
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_eq_obj *pbe_eq;
- unsigned int i, msix_vec;
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- hwi_disable_intr(phba);
- if (phba->msix_enabled) {
- for (i = 0; i <= phba->num_cpus; i++) {
- msix_vec = phba->msix_entries[i].vector;
- free_irq(msix_vec, &phwi_context->be_eq[i]);
- kfree(phba->msi_name[i]);
- }
- } else
- if (phba->pcidev->irq)
- free_irq(phba->pcidev->irq, phba);
- pci_disable_msix(phba->pcidev);
- cancel_delayed_work_sync(&phba->eqd_update);
- cancel_work_sync(&phba->boot_work);
- del_timer_sync(&phba->hw_check);
-
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- irq_poll_disable(&pbe_eq->iopoll);
- }
-
- /* PCI_ERR is set then check if driver is not unloading */
- if (test_bit(BEISCSI_HBA_RUNNING, &phba->state) &&
- test_bit(BEISCSI_HBA_PCI_ERR, &phba->state)) {
- hwi_cleanup_port(phba);
- return;
- }
-
- destroy_workqueue(phba->wq);
- beiscsi_cleanup_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);
-}
-
-static void beiscsi_remove(struct pci_dev *pcidev)
-{
- struct beiscsi_hba *phba = NULL;
-
- phba = pci_get_drvdata(pcidev);
- if (!phba) {
- dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
- return;
- }
-
- clear_bit(BEISCSI_HBA_RUNNING, &phba->state);
- beiscsi_iface_destroy_default(phba);
- iscsi_host_remove(phba->shost);
- beiscsi_quiesce(phba);
- /* after cancelling boot_work */
- iscsi_boot_destroy_kset(phba->boot_struct.boot_kset);
- pci_dev_put(phba->pcidev);
- iscsi_host_free(phba->shost);
- pci_disable_pcie_error_reporting(pcidev);
- pci_set_drvdata(pcidev, NULL);
- pci_release_regions(pcidev);
- pci_disable_device(pcidev);
-}
-
-static void beiscsi_msix_enable(struct beiscsi_hba *phba)
-{
- int i, status;
-
- for (i = 0; i <= phba->num_cpus; i++)
- phba->msix_entries[i].entry = i;
-
- status = pci_enable_msix_range(phba->pcidev, phba->msix_entries,
- phba->num_cpus + 1, phba->num_cpus + 1);
- if (status > 0)
- phba->msix_enabled = true;
-
- return;
-}
-
-void beiscsi_start_boot_work(struct beiscsi_hba *phba, unsigned int s_handle)
-{
- if (phba->boot_struct.boot_kset)
- return;
+ if (phba->boot_struct.boot_kset)
+ return;
/* skip if boot work is already in progress */
if (test_and_set_bit(BEISCSI_HBA_BOOT_WORK, &phba->state))
return rc;
}
-
static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
{
umode_t rc = 0;
return rc;
}
-
static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
{
umode_t rc = 0;
struct boot_struct *bs = &phba->boot_struct;
unsigned int tag = 0;
- if (beiscsi_hba_in_error(phba))
+ if (!beiscsi_hba_is_online(phba))
return;
beiscsi_log(phba, KERN_INFO,
}
}
-static void beiscsi_hw_health_check(unsigned long ptr)
-{
- struct beiscsi_hba *phba;
-
- phba = (struct beiscsi_hba *)ptr;
- beiscsi_ue_detect(phba);
- if (test_bit(BEISCSI_HBA_IN_UE, &phba->state))
- return;
-
- mod_timer(&phba->hw_check,
- jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
-}
-
static void beiscsi_eqd_update_work(struct work_struct *work)
{
struct hwi_context_memory *phwi_context;
unsigned long now;
phba = container_of(work, struct beiscsi_hba, eqd_update.work);
- if (beiscsi_hba_in_error(phba))
+ if (!beiscsi_hba_is_online(phba))
return;
phwi_ctrlr = phba->phwi_ctrlr;
msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
}
+static void beiscsi_msix_enable(struct beiscsi_hba *phba)
+{
+ int i, status;
+
+ for (i = 0; i <= phba->num_cpus; i++)
+ phba->msix_entries[i].entry = i;
+
+ status = pci_enable_msix_range(phba->pcidev, phba->msix_entries,
+ phba->num_cpus + 1, phba->num_cpus + 1);
+ if (status > 0)
+ phba->msix_enabled = true;
+}
+
+static void beiscsi_hw_tpe_check(unsigned long ptr)
+{
+ struct beiscsi_hba *phba;
+ u32 wait;
+
+ phba = (struct beiscsi_hba *)ptr;
+ /* if not TPE, do nothing */
+ if (!beiscsi_detect_tpe(phba))
+ return;
+
+ /* wait default 4000ms before recovering */
+ wait = 4000;
+ if (phba->ue2rp > BEISCSI_UE_DETECT_INTERVAL)
+ wait = phba->ue2rp - BEISCSI_UE_DETECT_INTERVAL;
+ queue_delayed_work(phba->wq, &phba->recover_port,
+ msecs_to_jiffies(wait));
+}
+
+static void beiscsi_hw_health_check(unsigned long ptr)
+{
+ struct beiscsi_hba *phba;
+
+ phba = (struct beiscsi_hba *)ptr;
+ beiscsi_detect_ue(phba);
+ if (beiscsi_detect_ue(phba)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : port in error: %lx\n", phba->state);
+ /* detect TPE if UER supported */
+ if (!test_bit(BEISCSI_HBA_UER_SUPP, &phba->state))
+ return;
+ /* modify this timer to check TPE */
+ phba->hw_check.function = beiscsi_hw_tpe_check;
+ }
+
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
+}
+
+/*
+ * beiscsi_enable_port()- Enables the disabled port.
+ * Only port resources freed in disable function are reallocated.
+ * This is called in HBA error handling path.
+ *
+ * @phba: Instance of driver private structure
+ *
+ **/
+static int beiscsi_enable_port(struct beiscsi_hba *phba)
+{
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ int ret, i;
+
+ if (test_bit(BEISCSI_HBA_ONLINE, &phba->state)) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : %s : port is online %lx\n",
+ __func__, phba->state);
+ return 0;
+ }
+
+ ret = beiscsi_init_sliport(phba);
+ if (ret)
+ return ret;
+
+ if (enable_msix)
+ find_num_cpus(phba);
+ else
+ phba->num_cpus = 1;
+ if (enable_msix) {
+ beiscsi_msix_enable(phba);
+ if (!phba->msix_enabled)
+ phba->num_cpus = 1;
+ }
+
+ beiscsi_get_params(phba);
+ /* Re-enable UER. If different TPE occurs then it is recoverable. */
+ beiscsi_set_uer_feature(phba);
+
+ phba->shost->max_id = phba->params.cxns_per_ctrl;
+ phba->shost->can_queue = phba->params.ios_per_ctrl;
+ ret = hwi_init_controller(phba);
+ if (ret) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : init controller failed %d\n", ret);
+ goto disable_msix;
+ }
+
+ for (i = 0; i < MAX_MCC_CMD; i++) {
+ init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
+ phba->ctrl.mcc_tag[i] = i + 1;
+ phba->ctrl.mcc_tag_status[i + 1] = 0;
+ phba->ctrl.mcc_tag_available++;
+ }
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, be_iopoll);
+ }
+
+ i = (phba->msix_enabled) ? i : 0;
+ /* Work item for MCC handling */
+ pbe_eq = &phwi_context->be_eq[i];
+ INIT_WORK(&pbe_eq->mcc_work, beiscsi_mcc_work);
+
+ ret = beiscsi_init_irqs(phba);
+ if (ret < 0) {
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : setup IRQs failed %d\n", ret);
+ goto cleanup_port;
+ }
+ hwi_enable_intr(phba);
+ /* port operational: clear all error bits */
+ set_bit(BEISCSI_HBA_ONLINE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BM_%d : port online: 0x%lx\n", phba->state);
+
+ /* start hw_check timer and eqd_update work */
+ schedule_delayed_work(&phba->eqd_update,
+ msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+
+ /**
+ * Timer function gets modified for TPE detection.
+ * Always reinit to do health check first.
+ */
+ phba->hw_check.function = beiscsi_hw_health_check;
+ mod_timer(&phba->hw_check,
+ jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
+ return 0;
+
+cleanup_port:
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ hwi_cleanup_port(phba);
+
+disable_msix:
+ if (phba->msix_enabled)
+ pci_disable_msix(phba->pcidev);
+
+ return ret;
+}
+
+/*
+ * beiscsi_disable_port()- Disable port and cleanup driver resources.
+ * This is called in HBA error handling and driver removal.
+ * @phba: Instance Priv structure
+ * @unload: indicate driver is unloading
+ *
+ * Free the OS and HW resources held by the driver
+ **/
+static void beiscsi_disable_port(struct beiscsi_hba *phba, int unload)
+{
+ struct hwi_context_memory *phwi_context;
+ struct hwi_controller *phwi_ctrlr;
+ struct be_eq_obj *pbe_eq;
+ unsigned int i, msix_vec;
+
+ if (!test_and_clear_bit(BEISCSI_HBA_ONLINE, &phba->state))
+ return;
+
+ phwi_ctrlr = phba->phwi_ctrlr;
+ phwi_context = phwi_ctrlr->phwi_ctxt;
+ hwi_disable_intr(phba);
+ if (phba->msix_enabled) {
+ for (i = 0; i <= phba->num_cpus; i++) {
+ msix_vec = phba->msix_entries[i].vector;
+ free_irq(msix_vec, &phwi_context->be_eq[i]);
+ kfree(phba->msi_name[i]);
+ }
+ } else
+ if (phba->pcidev->irq)
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msix(phba->pcidev);
+
+ for (i = 0; i < phba->num_cpus; i++) {
+ pbe_eq = &phwi_context->be_eq[i];
+ irq_poll_disable(&pbe_eq->iopoll);
+ }
+ cancel_delayed_work_sync(&phba->eqd_update);
+ cancel_work_sync(&phba->boot_work);
+ /* WQ might be running cancel queued mcc_work if we are not exiting */
+ if (!unload && beiscsi_hba_in_error(phba)) {
+ pbe_eq = &phwi_context->be_eq[i];
+ cancel_work_sync(&pbe_eq->mcc_work);
+ }
+ hwi_cleanup_port(phba);
+}
+
+static void beiscsi_recover_port(struct work_struct *work)
+{
+ struct beiscsi_hba *phba;
+
+ phba = container_of(work, struct beiscsi_hba, recover_port.work);
+ iscsi_host_for_each_session(phba->shost, beiscsi_session_fail);
+ beiscsi_disable_port(phba, 0);
+ beiscsi_enable_port(phba);
+}
static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
pci_channel_state_t state)
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : EEH error detected\n");
- beiscsi_quiesce(phba);
+ /* first stop UE detection when PCI error detected */
+ del_timer_sync(&phba->hw_check);
+ cancel_delayed_work_sync(&phba->recover_port);
+
+ beiscsi_disable_port(phba, 0);
if (state == pci_channel_io_perm_failure) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
static void beiscsi_eeh_resume(struct pci_dev *pdev)
{
- int ret, i;
- struct be_eq_obj *pbe_eq;
- struct beiscsi_hba *phba = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
+ struct beiscsi_hba *phba;
+ int ret;
phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
pci_save_state(pdev);
- if (enable_msix)
- find_num_cpus(phba);
- else
- phba->num_cpus = 1;
-
- if (enable_msix) {
- beiscsi_msix_enable(phba);
- if (!phba->msix_enabled)
- phba->num_cpus = 1;
- }
-
- ret = beiscsi_init_sliport(phba);
+ ret = beiscsi_enable_port(phba);
if (ret)
- goto ret_err;
-
- beiscsi_get_params(phba);
- phba->shost->max_id = phba->params.cxns_per_ctrl;
- phba->shost->can_queue = phba->params.ios_per_ctrl;
- ret = hwi_init_controller(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_eeh_resume -"
- "Failed to initialize beiscsi_hba.\n");
- goto ret_err;
- }
-
- for (i = 0; i < MAX_MCC_CMD; i++) {
- init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
- phba->ctrl.mcc_tag[i] = i + 1;
- phba->ctrl.mcc_tag_status[i + 1] = 0;
- phba->ctrl.mcc_tag_available++;
- }
-
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
-
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget,
- be_iopoll);
- }
-
- i = (phba->msix_enabled) ? i : 0;
- /* Work item for MCC handling */
- pbe_eq = &phwi_context->be_eq[i];
- INIT_WORK(&pbe_eq->mcc_work, beiscsi_mcc_work);
-
- ret = beiscsi_init_irqs(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_eeh_resume - "
- "Failed to beiscsi_init_irqs\n");
- goto ret_err;
- }
-
- hwi_enable_intr(phba);
- clear_bit(BEISCSI_HBA_PCI_ERR, &phba->state);
-
- /* start hw_check timer and eqd_update work */
- schedule_delayed_work(&phba->eqd_update,
- msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
- mod_timer(&phba->hw_check,
- jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
- return;
-ret_err:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : AER EEH Resume Failed\n");
+ __beiscsi_log(phba, KERN_ERR,
+ "BM_%d : AER EEH resume failed\n");
}
static int beiscsi_dev_probe(struct pci_dev *pcidev,
if (ret)
goto hba_free;
- set_bit(BEISCSI_HBA_RUNNING, &phba->state);
spin_lock_init(&phba->io_sgl_lock);
spin_lock_init(&phba->mgmt_sgl_lock);
spin_lock_init(&phba->async_pdu_lock);
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
- irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget,
- be_iopoll);
+ irq_poll_init(&pbe_eq->iopoll, be_iopoll_budget, be_iopoll);
}
i = (phba->msix_enabled) ? i : 0;
}
hwi_enable_intr(phba);
- if (iscsi_host_add(phba->shost, &phba->pcidev->dev))
+ ret = iscsi_host_add(phba->shost, &phba->pcidev->dev);
+ if (ret)
goto free_blkenbld;
+ /* set online bit after port is operational */
+ set_bit(BEISCSI_HBA_ONLINE, &phba->state);
+ __beiscsi_log(phba, KERN_INFO,
+ "BM_%d : port online: 0x%lx\n", phba->state);
+
INIT_WORK(&phba->boot_work, beiscsi_boot_work);
ret = beiscsi_boot_get_shandle(phba, &s_handle);
if (ret > 0) {
beiscsi_iface_create_default(phba);
schedule_delayed_work(&phba->eqd_update,
msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
+
+ INIT_DELAYED_WORK(&phba->recover_port, beiscsi_recover_port);
/**
* Start UE detection here. UE before this will cause stall in probe
* and eventually fail the probe.
irq_poll_disable(&pbe_eq->iopoll);
}
free_twq:
+ hwi_cleanup_port(phba);
beiscsi_cleanup_port(phba);
beiscsi_free_mem(phba);
free_port:
return ret;
}
+static void beiscsi_remove(struct pci_dev *pcidev)
+{
+ struct beiscsi_hba *phba = NULL;
+
+ phba = pci_get_drvdata(pcidev);
+ if (!phba) {
+ dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
+ return;
+ }
+
+ /* first stop UE detection before unloading */
+ del_timer_sync(&phba->hw_check);
+ cancel_delayed_work_sync(&phba->recover_port);
+
+ beiscsi_iface_destroy_default(phba);
+ iscsi_host_remove(phba->shost);
+ beiscsi_disable_port(phba, 1);
+
+ /* after cancelling boot_work */
+ iscsi_boot_destroy_kset(phba->boot_struct.boot_kset);
+
+ /* free all resources */
+ destroy_workqueue(phba->wq);
+ beiscsi_cleanup_port(phba);
+ beiscsi_free_mem(phba);
+
+ /* ctrl uninit */
+ 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);
+
+ pci_dev_put(phba->pcidev);
+ iscsi_host_free(phba->shost);
+ pci_disable_pcie_error_reporting(pcidev);
+ pci_set_drvdata(pcidev, NULL);
+ pci_release_regions(pcidev);
+ pci_disable_device(pcidev);
+}
+
+
static struct pci_error_handlers beiscsi_eeh_handlers = {
.error_detected = beiscsi_eeh_err_detected,
.slot_reset = beiscsi_eeh_reset,
.err_handler = &beiscsi_eeh_handlers
};
-
static int __init beiscsi_module_init(void)
{
int ret;
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff