diff options
| -rw-r--r-- | drivers/scsi/arcmsr/arcmsr_hba.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 60227d56bd39..b338a3b05549 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -89,11 +89,15 @@ static int arcmsr_bios_param(struct scsi_device *sdev, static int arcmsr_queue_command(struct Scsi_Host *h, struct scsi_cmnd *cmd); static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id); +static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state); +static int arcmsr_resume(struct pci_dev *pdev); static void arcmsr_remove(struct pci_dev *pdev); static void arcmsr_shutdown(struct pci_dev *pdev); static void arcmsr_iop_init(struct AdapterControlBlock *acb); static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb); static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb); +static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, + u32 intmask_org); static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb); static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb); static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb); @@ -167,6 +171,8 @@ static struct pci_driver arcmsr_pci_driver = { .id_table = arcmsr_device_id_table, .probe = arcmsr_probe, .remove = arcmsr_remove, + .suspend = arcmsr_suspend, + .resume = arcmsr_resume, .shutdown = arcmsr_shutdown, }; /* @@ -773,6 +779,76 @@ static void arcmsr_free_irq(struct pci_dev *pdev, free_irq(pdev->irq, acb); } +static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state) +{ + uint32_t intmask_org; + struct Scsi_Host *host = pci_get_drvdata(pdev); + struct AdapterControlBlock *acb = + (struct AdapterControlBlock *)host->hostdata; + + intmask_org = arcmsr_disable_outbound_ints(acb); + arcmsr_free_irq(pdev, acb); + del_timer_sync(&acb->eternal_timer); + flush_work(&acb->arcmsr_do_message_isr_bh); + arcmsr_stop_adapter_bgrb(acb); + arcmsr_flush_adapter_cache(acb); + pci_set_drvdata(pdev, host); + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, pci_choose_state(pdev, state)); + return 0; +} + +static int arcmsr_resume(struct pci_dev *pdev) +{ + int error; + struct Scsi_Host *host = pci_get_drvdata(pdev); + struct AdapterControlBlock *acb = + (struct AdapterControlBlock *)host->hostdata; + + pci_set_power_state(pdev, PCI_D0); + pci_enable_wake(pdev, PCI_D0, 0); + pci_restore_state(pdev); + if (pci_enable_device(pdev)) { + pr_warn("%s: pci_enable_device error\n", __func__); + return -ENODEV; + } + error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + if (error) { + error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + if (error) { + pr_warn("scsi%d: No suitable DMA mask available\n", + host->host_no); + goto controller_unregister; + } + } + pci_set_master(pdev); + if (arcmsr_request_irq(pdev, acb) == FAILED) + goto controller_stop; + arcmsr_iop_init(acb); + INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn); + atomic_set(&acb->rq_map_token, 16); + atomic_set(&acb->ante_token_value, 16); + acb->fw_flag = FW_NORMAL; + init_timer(&acb->eternal_timer); + acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ); + acb->eternal_timer.data = (unsigned long) acb; + acb->eternal_timer.function = &arcmsr_request_device_map; + add_timer(&acb->eternal_timer); + return 0; +controller_stop: + arcmsr_stop_adapter_bgrb(acb); + arcmsr_flush_adapter_cache(acb); +controller_unregister: + scsi_remove_host(host); + arcmsr_free_ccb_pool(acb); + arcmsr_unmap_pciregion(acb); + pci_release_regions(pdev); + scsi_host_put(host); + pci_disable_device(pdev); + return -ENODEV; +} + static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb) { struct MessageUnit_A __iomem *reg = acb->pmuA; |