diff options
Diffstat (limited to 'drivers/nvme/host')
| -rw-r--r-- | drivers/nvme/host/core.c | 11 | ||||
| -rw-r--r-- | drivers/nvme/host/pci.c | 42 |
2 files changed, 25 insertions, 28 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 7ff2e82..2feacc7 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -81,10 +81,12 @@ EXPORT_SYMBOL_GPL(nvme_cancel_request); bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl, enum nvme_ctrl_state new_state) { - enum nvme_ctrl_state old_state = ctrl->state; + enum nvme_ctrl_state old_state; bool changed = false; spin_lock_irq(&ctrl->lock); + + old_state = ctrl->state; switch (new_state) { case NVME_CTRL_LIVE: switch (old_state) { @@ -140,11 +142,12 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl, default: break; } - spin_unlock_irq(&ctrl->lock); if (changed) ctrl->state = new_state; + spin_unlock_irq(&ctrl->lock); + return changed; } EXPORT_SYMBOL_GPL(nvme_change_ctrl_state); @@ -608,7 +611,7 @@ int nvme_get_features(struct nvme_ctrl *dev, unsigned fid, unsigned nsid, ret = __nvme_submit_sync_cmd(dev->admin_q, &c, &cqe, NULL, 0, 0, NVME_QID_ANY, 0, 0); - if (ret >= 0) + if (ret >= 0 && result) *result = le32_to_cpu(cqe.result); return ret; } @@ -628,7 +631,7 @@ int nvme_set_features(struct nvme_ctrl *dev, unsigned fid, unsigned dword11, ret = __nvme_submit_sync_cmd(dev->admin_q, &c, &cqe, NULL, 0, 0, NVME_QID_ANY, 0, 0); - if (ret >= 0) + if (ret >= 0 && result) *result = le32_to_cpu(cqe.result); return ret; } diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 4cb9b15..60f7eab 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1543,15 +1543,10 @@ static void nvme_disable_io_queues(struct nvme_dev *dev) reinit_completion(&dev->ioq_wait); retry: timeout = ADMIN_TIMEOUT; - for (; i > 0; i--) { - struct nvme_queue *nvmeq = dev->queues[i]; - - if (!pass) - nvme_suspend_queue(nvmeq); - if (nvme_delete_queue(nvmeq, opcode)) + for (; i > 0; i--, sent++) + if (nvme_delete_queue(dev->queues[i], opcode)) break; - ++sent; - } + while (sent--) { timeout = wait_for_completion_io_timeout(&dev->ioq_wait, timeout); if (timeout == 0) @@ -1661,14 +1656,9 @@ static int nvme_pci_enable(struct nvme_dev *dev) static void nvme_dev_unmap(struct nvme_dev *dev) { - struct pci_dev *pdev = to_pci_dev(dev->dev); - int bars; - if (dev->bar) iounmap(dev->bar); - - bars = pci_select_bars(pdev, IORESOURCE_MEM); - pci_release_selected_regions(pdev, bars); + pci_release_mem_regions(to_pci_dev(dev->dev)); } static void nvme_pci_disable(struct nvme_dev *dev) @@ -1698,11 +1688,17 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown) nvme_stop_queues(&dev->ctrl); csts = readl(dev->bar + NVME_REG_CSTS); } + + for (i = dev->queue_count - 1; i > 0; i--) + nvme_suspend_queue(dev->queues[i]); + if (csts & NVME_CSTS_CFS || !(csts & NVME_CSTS_RDY)) { - for (i = dev->queue_count - 1; i >= 0; i--) { - struct nvme_queue *nvmeq = dev->queues[i]; - nvme_suspend_queue(nvmeq); - } + /* A device might become IO incapable very soon during + * probe, before the admin queue is configured. Thus, + * queue_count can be 0 here. + */ + if (dev->queue_count) + nvme_suspend_queue(dev->queues[0]); } else { nvme_disable_io_queues(dev); nvme_disable_admin_queue(dev, shutdown); @@ -1897,13 +1893,9 @@ static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = { static int nvme_dev_map(struct nvme_dev *dev) { - int bars; struct pci_dev *pdev = to_pci_dev(dev->dev); - bars = pci_select_bars(pdev, IORESOURCE_MEM); - if (!bars) - return -ENODEV; - if (pci_request_selected_regions(pdev, bars, "nvme")) + if (pci_request_mem_regions(pdev, "nvme")) return -ENODEV; dev->bar = ioremap(pci_resource_start(pdev, 0), 8192); @@ -1912,7 +1904,7 @@ static int nvme_dev_map(struct nvme_dev *dev) return 0; release: - pci_release_selected_regions(pdev, bars); + pci_release_mem_regions(pdev); return -ENODEV; } @@ -2125,6 +2117,8 @@ static const struct pci_device_id nvme_id_table[] = { .driver_data = NVME_QUIRK_IDENTIFY_CNS, }, { PCI_DEVICE(0x1c58, 0x0003), /* HGST adapter */ .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, }, + { PCI_DEVICE(0x1c5f, 0x0540), /* Memblaze Pblaze4 adapter */ + .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, }, { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) }, { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001) }, { 0, } |