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path: root/drivers/nvme/host/pci.c
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Diffstat (limited to 'drivers/nvme/host/pci.c')
-rw-r--r--drivers/nvme/host/pci.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 24ccda303efb..4fd733ff72b1 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1478,8 +1478,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
if (result > 0) {
dev_err(dev->ctrl.device,
"Could not set queue count (%d)\n", result);
- nr_io_queues = 0;
- result = 0;
+ return 0;
}
if (dev->cmb && NVME_CMB_SQS(dev->cmbsz)) {
@@ -1513,7 +1512,9 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
* If we enable msix early due to not intx, disable it again before
* setting up the full range we need.
*/
- if (!pdev->irq)
+ if (pdev->msi_enabled)
+ pci_disable_msi(pdev);
+ else if (pdev->msix_enabled)
pci_disable_msix(pdev);
for (i = 0; i < nr_io_queues; i++)
@@ -1696,7 +1697,6 @@ static int nvme_pci_enable(struct nvme_dev *dev)
if (pci_enable_device_mem(pdev))
return result;
- dev->entry[0].vector = pdev->irq;
pci_set_master(pdev);
if (dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64)) &&
@@ -1709,13 +1709,18 @@ static int nvme_pci_enable(struct nvme_dev *dev)
}
/*
- * Some devices don't advertse INTx interrupts, pre-enable a single
- * MSIX vec for setup. We'll adjust this later.
+ * Some devices and/or platforms don't advertise or work with INTx
+ * interrupts. Pre-enable a single MSIX or MSI vec for setup. We'll
+ * adjust this later.
*/
- if (!pdev->irq) {
- result = pci_enable_msix(pdev, dev->entry, 1);
- if (result < 0)
- goto disable;
+ if (pci_enable_msix(pdev, dev->entry, 1)) {
+ pci_enable_msi(pdev);
+ dev->entry[0].vector = pdev->irq;
+ }
+
+ if (!dev->entry[0].vector) {
+ result = -ENODEV;
+ goto disable;
}
cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
@@ -1859,6 +1864,9 @@ static void nvme_reset_work(struct work_struct *work)
if (dev->ctrl.ctrl_config & NVME_CC_ENABLE)
nvme_dev_disable(dev, false);
+ if (test_bit(NVME_CTRL_REMOVING, &dev->flags))
+ goto out;
+
set_bit(NVME_CTRL_RESETTING, &dev->flags);
result = nvme_pci_enable(dev);
@@ -2078,11 +2086,10 @@ static void nvme_remove(struct pci_dev *pdev)
{
struct nvme_dev *dev = pci_get_drvdata(pdev);
- del_timer_sync(&dev->watchdog_timer);
-
set_bit(NVME_CTRL_REMOVING, &dev->flags);
pci_set_drvdata(pdev, NULL);
flush_work(&dev->async_work);
+ flush_work(&dev->reset_work);
flush_work(&dev->scan_work);
nvme_remove_namespaces(&dev->ctrl);
nvme_uninit_ctrl(&dev->ctrl);