diff options
author | Robert Elliott <elliott@hp.com> | 2015-04-23 14:35:09 (GMT) |
---|---|---|
committer | James Bottomley <JBottomley@Odin.com> | 2015-05-31 23:34:01 (GMT) |
commit | 2946e82bdd76568dd6a3ebb49fe977ac222c0a19 (patch) | |
tree | 708719f25e84dc200228547cab58361b0f263a54 /drivers | |
parent | 73153fe533bc6209802521fc62d3e3648581a121 (diff) | |
download | linux-2946e82bdd76568dd6a3ebb49fe977ac222c0a19.tar.xz |
hpsa: use scsi host_no as hpsa controller number
Rather than numbering the hpsa controllers with an
incrementing 0..n value (e.g., that shows up in
/proc/interrupts), use the scsi midlayer
host_no (e.g. matching /sys/class/scsi_host/hostNN).
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Hannes Reinecke <hare@Suse.de>
Signed-off-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/scsi/hpsa.c | 134 |
1 files changed, 74 insertions, 60 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 6fed6d8..c88cb1b 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -324,32 +324,35 @@ static int check_for_unit_attention(struct ctlr_info *h, switch (asc) { case STATE_CHANGED: dev_warn(&h->pdev->dev, - HPSA "%d: a state change detected, command retried\n", - h->ctlr); + "%s: a state change detected, command retried\n", + h->devname); break; case LUN_FAILED: dev_warn(&h->pdev->dev, - HPSA "%d: LUN failure detected\n", h->ctlr); + "%s: LUN failure detected\n", h->devname); break; case REPORT_LUNS_CHANGED: dev_warn(&h->pdev->dev, - HPSA "%d: report LUN data changed\n", h->ctlr); + "%s: report LUN data changed\n", h->devname); /* * Note: this REPORT_LUNS_CHANGED condition only occurs on the external * target (array) devices. */ break; case POWER_OR_RESET: - dev_warn(&h->pdev->dev, HPSA "%d: a power on " - "or device reset detected\n", h->ctlr); + dev_warn(&h->pdev->dev, + "%s: a power on or device reset detected\n", + h->devname); break; case UNIT_ATTENTION_CLEARED: - dev_warn(&h->pdev->dev, HPSA "%d: unit attention " - "cleared by another initiator\n", h->ctlr); + dev_warn(&h->pdev->dev, + "%s: unit attention cleared by another initiator\n", + h->devname); break; default: - dev_warn(&h->pdev->dev, HPSA "%d: unknown " - "unit attention detected\n", h->ctlr); + dev_warn(&h->pdev->dev, + "%s: unknown unit attention detected\n", + h->devname); break; } return 1; @@ -4764,22 +4767,16 @@ static int hpsa_scan_finished(struct Scsi_Host *sh, return finished; } -static void hpsa_unregister_scsi(struct ctlr_info *h) -{ - /* we are being forcibly unloaded, and may not refuse. */ - scsi_remove_host(h->scsi_host); - scsi_host_put(h->scsi_host); - h->scsi_host = NULL; -} - -static int hpsa_register_scsi(struct ctlr_info *h) +static int hpsa_scsi_host_alloc(struct ctlr_info *h) { struct Scsi_Host *sh; int error; sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h)); - if (sh == NULL) - goto fail; + if (sh == NULL) { + dev_err(&h->pdev->dev, "scsi_host_alloc failed\n"); + return -ENOMEM; + } sh->io_port = 0; sh->n_io_port = 0; @@ -4791,7 +4788,6 @@ static int hpsa_register_scsi(struct ctlr_info *h) sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS; sh->cmd_per_lun = sh->can_queue; sh->sg_tablesize = h->maxsgentries; - h->scsi_host = sh; sh->hostdata[0] = (unsigned long) h; sh->irq = h->intr[h->intr_mode]; sh->unique_id = sh->irq; @@ -4800,24 +4796,24 @@ static int hpsa_register_scsi(struct ctlr_info *h) dev_err(&h->pdev->dev, "%s: scsi_init_shared_tag_map failed for controller %d\n", __func__, h->ctlr); - goto fail_host_put; - } - error = scsi_add_host(sh, &h->pdev->dev); - if (error) { - dev_err(&h->pdev->dev, "%s: scsi_add_host failed for controller %d\n", - __func__, h->ctlr); - goto fail_host_put; + scsi_host_put(sh); + return error; } - scsi_scan_host(sh); + h->scsi_host = sh; return 0; +} - fail_host_put: - scsi_host_put(sh); - return error; - fail: - dev_err(&h->pdev->dev, "%s: scsi_host_alloc" - " failed for controller %d\n", __func__, h->ctlr); - return -ENOMEM; +static int hpsa_scsi_add_host(struct ctlr_info *h) +{ + int rv; + + rv = scsi_add_host(h->scsi_host, &h->pdev->dev); + if (rv) { + dev_err(&h->pdev->dev, "scsi_add_host failed\n"); + return rv; + } + scsi_scan_host(h->scsi_host); + return 0; } /* @@ -7483,7 +7479,9 @@ static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h) hpsa_free_sg_chain_blocks(h); /* init_one 6 */ hpsa_free_cmd_pool(h); /* init_one 5 */ hpsa_free_irqs(h); /* init_one 4 */ - hpsa_free_pci_init(h); /* init_one 3 */ + scsi_host_put(h->scsi_host); /* init_one 3 */ + h->scsi_host = NULL; /* init_one 3 */ + hpsa_free_pci_init(h); /* init_one 2_5 */ free_percpu(h->lockup_detected); /* init_one 2 */ h->lockup_detected = NULL; /* init_one 2 */ if (h->resubmit_wq) { @@ -7793,9 +7791,15 @@ reinit_after_soft_reset: rc = hpsa_pci_init(h); if (rc) - goto clean2; /* lockup, aer/h */ + goto clean2; /* lu, aer/h */ + + /* relies on h-> settings made by hpsa_pci_init, including + * interrupt_mode h->intr */ + rc = hpsa_scsi_host_alloc(h); + if (rc) + goto clean2_5; /* pci, lu, aer/h */ - sprintf(h->devname, HPSA "%d", number_of_controllers); + sprintf(h->devname, HPSA "%d", h->scsi_host->host_no); h->ctlr = number_of_controllers; number_of_controllers++; @@ -7809,7 +7813,7 @@ reinit_after_soft_reset: dac = 0; } else { dev_err(&pdev->dev, "no suitable DMA available\n"); - goto clean3; /* pci, lockup, aer/h */ + goto clean3; /* shost, pci, lu, aer/h */ } } @@ -7818,13 +7822,13 @@ reinit_after_soft_reset: rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx); if (rc) - goto clean3; /* pci, lockup, aer/h */ + goto clean3; /* shost, pci, lu, aer/h */ rc = hpsa_alloc_cmd_pool(h); if (rc) - goto clean4; /* irq, pci, lockup, aer/h */ + goto clean4; /* irq, shost, pci, lu, aer/h */ rc = hpsa_alloc_sg_chain_blocks(h); if (rc) - goto clean5; /* cmd, irq, pci, lockup, aer/h */ + goto clean5; /* cmd, irq, shost, pci, lu, aer/h */ init_waitqueue_head(&h->scan_wait_queue); init_waitqueue_head(&h->abort_cmd_wait_queue); init_waitqueue_head(&h->abort_sync_wait_queue); @@ -7833,11 +7837,16 @@ reinit_after_soft_reset: pci_set_drvdata(pdev, h); h->ndevices = 0; h->hba_mode_enabled = 0; - h->scsi_host = NULL; + spin_lock_init(&h->devlock); rc = hpsa_put_ctlr_into_performant_mode(h); if (rc) - goto clean6; /* sg, cmd, irq, pci, lockup, aer/h */ + goto clean6; /* sg, cmd, irq, shost, pci, lu, aer/h */ + + /* hook into SCSI subsystem */ + rc = hpsa_scsi_add_host(h); + if (rc) + goto clean7; /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ /* create the resubmit workqueue */ h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan"); @@ -7892,7 +7901,7 @@ reinit_after_soft_reset: rc = hpsa_kdump_soft_reset(h); if (rc) /* Neither hard nor soft reset worked, we're hosed. */ - goto clean8; + goto clean9; dev_info(&h->pdev->dev, "Board READY.\n"); dev_info(&h->pdev->dev, @@ -7927,9 +7936,6 @@ reinit_after_soft_reset: h->access.set_intr_mask(h, HPSA_INTR_ON); hpsa_hba_inquiry(h); - rc = hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */ - if (rc) - goto clean8; /* wq, perf, sg, cmd, irq, pci, lockup, aer/h */ /* Monitor the controller for firmware lockups */ h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; @@ -7941,20 +7947,23 @@ reinit_after_soft_reset: h->heartbeat_sample_interval); return 0; -clean8: /* perf, sg, cmd, irq, pci, lockup, aer/h */ +clean9: /* wq, sh, perf, sg, cmd, irq, shost, pci, lu, aer/h */ kfree(h->hba_inquiry_data); -clean7: /* perf, sg, cmd, irq, pci, lockup, aer/h */ +clean7: /* perf, sg, cmd, irq, shost, pci, lu, aer/h */ hpsa_free_performant_mode(h); h->access.set_intr_mask(h, HPSA_INTR_OFF); clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */ hpsa_free_sg_chain_blocks(h); -clean5: /* cmd, irq, pci, lockup, aer/h */ +clean5: /* cmd, irq, shost, pci, lu, aer/h */ hpsa_free_cmd_pool(h); -clean4: /* irq, pci, lockup, aer/h */ +clean4: /* irq, shost, pci, lu, aer/h */ hpsa_free_irqs(h); -clean3: /* pci, lockup, aer/h */ +clean3: /* shost, pci, lu, aer/h */ + scsi_host_put(h->scsi_host); + h->scsi_host = NULL; +clean2_5: /* pci, lu, aer/h */ hpsa_free_pci_init(h); -clean2: /* lockup, aer/h */ +clean2: /* lu, aer/h */ if (h->lockup_detected) { free_percpu(h->lockup_detected); h->lockup_detected = NULL; @@ -8053,17 +8062,22 @@ static void hpsa_remove_one(struct pci_dev *pdev) hpsa_free_device_info(h); /* scan */ - hpsa_unregister_scsi(h); /* init_one 9 */ - kfree(h->hba_inquiry_data); /* init_one 9 */ - h->hba_inquiry_data = NULL; /* init_one 9 */ + kfree(h->hba_inquiry_data); /* init_one 10 */ + h->hba_inquiry_data = NULL; /* init_one 10 */ + if (h->scsi_host) + scsi_remove_host(h->scsi_host); /* init_one 8 */ + hpsa_free_ioaccel2_sg_chain_blocks(h); hpsa_free_performant_mode(h); /* init_one 7 */ hpsa_free_sg_chain_blocks(h); /* init_one 6 */ hpsa_free_cmd_pool(h); /* init_one 5 */ /* hpsa_free_irqs already called via hpsa_shutdown init_one 4 */ + scsi_host_put(h->scsi_host); /* init_one 3 */ + h->scsi_host = NULL; /* init_one 3 */ + /* includes hpsa_disable_interrupt_mode - pci_init 2 */ - hpsa_free_pci_init(h); /* init_one 3 */ + hpsa_free_pci_init(h); /* init_one 2.5 */ free_percpu(h->lockup_detected); /* init_one 2 */ h->lockup_detected = NULL; /* init_one 2 */ |