diff options
Diffstat (limited to 'drivers/scsi/be2iscsi/be_main.c')
| -rw-r--r-- | drivers/scsi/be2iscsi/be_main.c | 97 |
1 files changed, 67 insertions, 30 deletions
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 6179c4e512a6..22fcbea6894d 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -2017,6 +2017,9 @@ void beiscsi_process_mcc_cq(struct beiscsi_hba *phba) mcc_compl = queue_tail_node(mcc_cq); mcc_compl->flags = le32_to_cpu(mcc_compl->flags); while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) { + if (beiscsi_hba_in_error(phba)) + return; + if (num_processed >= 32) { hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 0); @@ -2048,7 +2051,8 @@ static void beiscsi_mcc_work(struct work_struct *work) phba = pbe_eq->phba; beiscsi_process_mcc_cq(phba); /* rearm EQ for further interrupts */ - hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); + if (!beiscsi_hba_in_error(phba)) + hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); } /** @@ -2079,6 +2083,9 @@ unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq, int budget) while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] & CQE_VALID_MASK) { + if (beiscsi_hba_in_error(phba)) + return 0; + be_dws_le_to_cpu(sol, sizeof(struct sol_cqe)); code = (sol->dw[offsetof(struct amap_sol_cqe, code) / @@ -2248,12 +2255,16 @@ static int be_iopoll(struct irq_poll *iop, int budget) struct be_eq_entry *eqe = NULL; struct be_queue_info *eq; - io_events = 0; pbe_eq = container_of(iop, struct be_eq_obj, iopoll); phba = pbe_eq->phba; + if (beiscsi_hba_in_error(phba)) { + irq_poll_complete(iop); + return 0; + } + + io_events = 0; eq = &pbe_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); @@ -2261,7 +2272,6 @@ static int be_iopoll(struct irq_poll *iop, int budget) eqe = queue_tail_node(eq); io_events++; } - hwi_ring_eq_db(phba, eq->id, 1, io_events, 0, 1); ret = beiscsi_process_cq(pbe_eq, budget); @@ -2272,7 +2282,8 @@ static int be_iopoll(struct irq_poll *iop, int budget) BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO, "BM_%d : rearm pbe_eq->q.id =%d ret %d\n", pbe_eq->q.id, ret); - hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); + if (!beiscsi_hba_in_error(phba)) + hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1); } return ret; } @@ -4633,7 +4644,8 @@ static void beiscsi_cleanup_task(struct iscsi_task *task) } if (io_task->scsi_cmnd) { - scsi_dma_unmap(io_task->scsi_cmnd); + if (io_task->num_sg) + scsi_dma_unmap(io_task->scsi_cmnd); io_task->scsi_cmnd = NULL; } } else { @@ -5112,6 +5124,15 @@ static int beiscsi_task_xmit(struct iscsi_task *task) int num_sg; unsigned int writedir = 0, xferlen = 0; + phba = io_task->conn->phba; + /** + * HBA in error includes BEISCSI_HBA_FW_TIMEOUT. IO path might be + * operational if FW still gets heartbeat from EP FW. Is management + * path really needed to continue further? + */ + if (beiscsi_hba_in_error(phba)) + return -EIO; + if (!io_task->conn->login_in_progress) task->hdr->exp_statsn = 0; @@ -5119,8 +5140,8 @@ static int beiscsi_task_xmit(struct iscsi_task *task) return beiscsi_mtask(task); io_task->scsi_cmnd = sc; + io_task->num_sg = 0; num_sg = scsi_dma_map(sc); - phba = io_task->conn->phba; if (num_sg < 0) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI, @@ -5131,6 +5152,11 @@ static int beiscsi_task_xmit(struct iscsi_task *task) return num_sg; } + /** + * For scsi cmd task, check num_sg before unmapping in cleanup_task. + * For management task, cleanup_task checks mtask_addr before unmapping. + */ + io_task->num_sg = num_sg; xferlen = scsi_bufflen(sc); sg = scsi_sglist(sc); if (sc->sc_data_direction == DMA_TO_DEVICE) @@ -5160,6 +5186,12 @@ static int beiscsi_bsg_request(struct bsg_job *job) shost = iscsi_job_to_shost(job); phba = iscsi_host_priv(shost); + if (beiscsi_hba_in_error(phba)) { + beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG, + "BM_%d : HBA in error 0x%lx\n", phba->state); + return -ENXIO; + } + switch (bsg_req->msgcode) { case ISCSI_BSG_HST_VENDOR: nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev, @@ -5233,12 +5265,10 @@ void beiscsi_hba_attrs_init(struct beiscsi_hba *phba) /* * beiscsi_quiesce()- Cleanup Driver resources * @phba: Instance Priv structure - * @unload_state:i Clean or EEH unload state * * Free the OS and HW resources held by the driver **/ -static void beiscsi_quiesce(struct beiscsi_hba *phba, - uint32_t unload_state) +static void beiscsi_quiesce(struct beiscsi_hba *phba) { struct hwi_controller *phwi_ctrlr; struct hwi_context_memory *phwi_context; @@ -5265,21 +5295,22 @@ static void beiscsi_quiesce(struct beiscsi_hba *phba, irq_poll_disable(&pbe_eq->iopoll); } - if (unload_state == BEISCSI_CLEAN_UNLOAD) { - destroy_workqueue(phba->wq); - 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); - } else { - hwi_purge_eq(phba); + /* 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(phba); + return; } + destroy_workqueue(phba->wq); + 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); } static void beiscsi_remove(struct pci_dev *pcidev) @@ -5292,10 +5323,11 @@ static void beiscsi_remove(struct pci_dev *pcidev) return; } + clear_bit(BEISCSI_HBA_RUNNING, &phba->state); beiscsi_iface_destroy_default(phba); iscsi_boot_destroy_kset(phba->boot_kset); iscsi_host_remove(phba->shost); - beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD); + beiscsi_quiesce(phba); pci_dev_put(phba->pcidev); iscsi_host_free(phba->shost); pci_disable_pcie_error_reporting(pcidev); @@ -5331,6 +5363,9 @@ static void be_eqd_update(struct beiscsi_hba *phba) u32 pps, delta; unsigned int tag; + if (beiscsi_hba_in_error(phba)) + return; + phwi_ctrlr = phba->phwi_ctrlr; phwi_context = phwi_ctrlr->phwi_ctxt; @@ -5372,6 +5407,9 @@ static void be_eqd_update(struct beiscsi_hba *phba) static void be_check_boot_session(struct beiscsi_hba *phba) { + if (beiscsi_hba_in_error(phba)) + return; + if (beiscsi_setup_boot_info(phba)) beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BM_%d : Could not set up " @@ -5393,13 +5431,13 @@ beiscsi_hw_health_check(struct work_struct *work) be_eqd_update(phba); - if (phba->state & BE_ADAPTER_CHECK_BOOT) { + if (test_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state)) { if ((phba->get_boot > 0) && (!phba->boot_kset)) { phba->get_boot--; if (!(phba->get_boot % BE_GET_BOOT_TO)) be_check_boot_session(phba); } else { - phba->state &= ~BE_ADAPTER_CHECK_BOOT; + clear_bit(BEISCSI_HBA_BOOT_FOUND, &phba->state); phba->get_boot = 0; } } @@ -5417,12 +5455,12 @@ static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev, struct beiscsi_hba *phba = NULL; phba = (struct beiscsi_hba *)pci_get_drvdata(pdev); - phba->state |= BE_ADAPTER_PCI_ERR; + set_bit(BEISCSI_HBA_PCI_ERR, &phba->state); beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, "BM_%d : EEH error detected\n"); - beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD); + beiscsi_quiesce(phba); if (state == pci_channel_io_perm_failure) { beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, @@ -5554,7 +5592,7 @@ static void beiscsi_eeh_resume(struct pci_dev *pdev) } hwi_enable_intr(phba); - phba->state &= ~BE_ADAPTER_PCI_ERR; + clear_bit(BEISCSI_HBA_PCI_ERR, &phba->state); return; ret_err: @@ -5597,10 +5635,8 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev, /* Initialize Driver configuration Paramters */ beiscsi_hba_attrs_init(phba); - phba->fw_timeout = false; phba->mac_addr_set = false; - switch (pcidev->device) { case BE_DEVICE_ID1: case OC_DEVICE_ID1: @@ -5629,6 +5665,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev, goto hba_free; } + set_bit(BEISCSI_HBA_RUNNING, &phba->state); /* * FUNCTION_RESET should clean up any stale info in FW for this fn */ |