diff options
author | Dan Williams <dan.j.williams@intel.com> | 2013-11-14 00:30:43 (GMT) |
---|---|---|
committer | Dan Williams <dan.j.williams@intel.com> | 2013-11-14 19:04:42 (GMT) |
commit | 779e561ae2627727ea3d797a7db2496e8bae3430 (patch) | |
tree | ab650d0d60381c7b5b06e34eb7ed9f6e867968cf /drivers/dma | |
parent | 4c5d9619e06b960d14f5640341f40e71f78801c2 (diff) | |
download | linux-779e561ae2627727ea3d797a7db2496e8bae3430.tar.xz |
ioat: fix ioat3_irq_reinit
The implementation of ioat3_irq_reinit has two bugs:
1/ The mode is incorrectly set to MSIX for the MSI case
2/ The 'dev_id' parameter to free_irq is the ioatdma_device not the channel in
the msi and intx case
Include a small cleanup to clarify that ioat3_irq_reinit is only for bwd
hardware
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r-- | drivers/dma/ioat/dma.c | 2 | ||||
-rw-r--r-- | drivers/dma/ioat/dma_v3.c | 39 |
2 files changed, 15 insertions, 26 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index fb879d9..4f67473 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -934,7 +934,7 @@ msi: pci_disable_msi(pdev); goto intx; } - device->irq_mode = IOAT_MSIX; + device->irq_mode = IOAT_MSI; goto done; intx: diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index 3861663..915b1f6 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -1449,45 +1449,36 @@ static int ioat3_dma_self_test(struct ioatdma_device *device) static int ioat3_irq_reinit(struct ioatdma_device *device) { - int msixcnt = device->common.chancnt; struct pci_dev *pdev = device->pdev; - int i; - struct msix_entry *msix; - struct ioat_chan_common *chan; - int err = 0; + int irq = pdev->irq, i; + + if (!is_bwd_ioat(pdev)) + return 0; switch (device->irq_mode) { case IOAT_MSIX: + for (i = 0; i < device->common.chancnt; i++) { + struct msix_entry *msix = &device->msix_entries[i]; + struct ioat_chan_common *chan; - for (i = 0; i < msixcnt; i++) { - msix = &device->msix_entries[i]; chan = ioat_chan_by_index(device, i); devm_free_irq(&pdev->dev, msix->vector, chan); } pci_disable_msix(pdev); break; - case IOAT_MSI: - chan = ioat_chan_by_index(device, 0); - devm_free_irq(&pdev->dev, pdev->irq, chan); pci_disable_msi(pdev); - break; - + /* fall through */ case IOAT_INTX: - chan = ioat_chan_by_index(device, 0); - devm_free_irq(&pdev->dev, pdev->irq, chan); + devm_free_irq(&pdev->dev, irq, device); break; - default: return 0; } - device->irq_mode = IOAT_NOIRQ; - err = ioat_dma_setup_interrupts(device); - - return err; + return ioat_dma_setup_interrupts(device); } static int ioat3_reset_hw(struct ioat_chan_common *chan) @@ -1530,14 +1521,12 @@ static int ioat3_reset_hw(struct ioat_chan_common *chan) } err = ioat2_reset_sync(chan, msecs_to_jiffies(200)); - if (err) { - dev_err(&pdev->dev, "Failed to reset!\n"); - return err; - } - - if (device->irq_mode != IOAT_NOIRQ && is_bwd_ioat(pdev)) + if (!err) err = ioat3_irq_reinit(device); + if (err) + dev_err(&pdev->dev, "Failed to reset: %d\n", err); + return err; } |