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path: root/drivers/dma/ioat/dma_v3.c
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Diffstat (limited to 'drivers/dma/ioat/dma_v3.c')
-rw-r--r--drivers/dma/ioat/dma_v3.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 32eae38291e5..77a6dcf25b98 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -214,6 +214,11 @@ static bool is_bwd_ioat(struct pci_dev *pdev)
case PCI_DEVICE_ID_INTEL_IOAT_BWD1:
case PCI_DEVICE_ID_INTEL_IOAT_BWD2:
case PCI_DEVICE_ID_INTEL_IOAT_BWD3:
+ /* even though not Atom, BDX-DE has same DMA silicon */
+ case PCI_DEVICE_ID_INTEL_IOAT_BDXDE0:
+ case PCI_DEVICE_ID_INTEL_IOAT_BDXDE1:
+ case PCI_DEVICE_ID_INTEL_IOAT_BDXDE2:
+ case PCI_DEVICE_ID_INTEL_IOAT_BDXDE3:
return true;
default:
return false;
@@ -489,6 +494,7 @@ static void ioat3_eh(struct ioat2_dma_chan *ioat)
struct ioat_chan_common *chan = &ioat->base;
struct pci_dev *pdev = to_pdev(chan);
struct ioat_dma_descriptor *hw;
+ struct dma_async_tx_descriptor *tx;
u64 phys_complete;
struct ioat_ring_ent *desc;
u32 err_handled = 0;
@@ -534,6 +540,16 @@ static void ioat3_eh(struct ioat2_dma_chan *ioat)
dev_err(to_dev(chan), "%s: fatal error (%x:%x)\n",
__func__, chanerr, err_handled);
BUG();
+ } else { /* cleanup the faulty descriptor */
+ tx = &desc->txd;
+ if (tx->cookie) {
+ dma_cookie_complete(tx);
+ dma_descriptor_unmap(tx);
+ if (tx->callback) {
+ tx->callback(tx->callback_param);
+ tx->callback = NULL;
+ }
+ }
}
writel(chanerr, chan->reg_base + IOAT_CHANERR_OFFSET);
@@ -1300,7 +1316,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
- if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
+ if (tmo == 0 ||
+ dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
dev_err(dev, "Self-test xor timed out\n");
err = -ENODEV;
goto dma_unmap;
@@ -1366,7 +1383,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
- if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
+ if (tmo == 0 ||
+ dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
dev_err(dev, "Self-test validate timed out\n");
err = -ENODEV;
goto dma_unmap;
@@ -1418,7 +1436,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
- if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
+ if (tmo == 0 ||
+ dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
dev_err(dev, "Self-test 2nd validate timed out\n");
err = -ENODEV;
goto dma_unmap;