diff options
Diffstat (limited to 'drivers/dma/ioat_dma.c')
| -rw-r--r-- | drivers/dma/ioat_dma.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index 725f83f..c44f551 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -267,7 +267,7 @@ static int ioat_dma_alloc_chan_resources(struct dma_chan *chan) chanerr = readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET); if (chanerr) { dev_err(&ioat_chan->device->pdev->dev, - "ioatdma: CHANERR = %x, clearing\n", chanerr); + "CHANERR = %x, clearing\n", chanerr); writel(chanerr, ioat_chan->reg_base + IOAT_CHANERR_OFFSET); } @@ -276,7 +276,7 @@ static int ioat_dma_alloc_chan_resources(struct dma_chan *chan) desc = ioat_dma_alloc_descriptor(ioat_chan, GFP_KERNEL); if (!desc) { dev_err(&ioat_chan->device->pdev->dev, - "ioatdma: Only %d initial descriptors\n", i); + "Only %d initial descriptors\n", i); break; } list_add_tail(&desc->node, &tmp_list); @@ -342,7 +342,7 @@ static void ioat_dma_free_chan_resources(struct dma_chan *chan) /* one is ok since we left it on there on purpose */ if (in_use_descs > 1) dev_err(&ioat_chan->device->pdev->dev, - "ioatdma: Freeing %d in use descriptors!\n", + "Freeing %d in use descriptors!\n", in_use_descs - 1); ioat_chan->last_completion = ioat_chan->completion_addr = 0; @@ -482,7 +482,7 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan) if ((ioat_chan->completion_virt->full & IOAT_CHANSTS_DMA_TRANSFER_STATUS) == IOAT_CHANSTS_DMA_TRANSFER_STATUS_HALTED) { dev_err(&ioat_chan->device->pdev->dev, - "ioatdma: Channel halted, chanerr = %x\n", + "Channel halted, chanerr = %x\n", readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET)); /* TODO do something to salvage the situation */ @@ -643,7 +643,7 @@ static int ioat_dma_self_test(struct ioatdma_device *device) u8 *src; u8 *dest; struct dma_chan *dma_chan; - struct dma_async_tx_descriptor *tx; + struct dma_async_tx_descriptor *tx = NULL; dma_addr_t addr; dma_cookie_t cookie; int err = 0; @@ -673,6 +673,13 @@ static int ioat_dma_self_test(struct ioatdma_device *device) } tx = ioat_dma_prep_memcpy(dma_chan, IOAT_TEST_SIZE, 0); + if (!tx) { + dev_err(&device->pdev->dev, + "Self-test prep failed, disabling\n"); + err = -ENODEV; + goto free_resources; + } + async_tx_ack(tx); addr = dma_map_single(dma_chan->device->dev, src, IOAT_TEST_SIZE, DMA_TO_DEVICE); @@ -686,13 +693,13 @@ static int ioat_dma_self_test(struct ioatdma_device *device) if (ioat_dma_is_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) { dev_err(&device->pdev->dev, - "ioatdma: Self-test copy timed out, disabling\n"); + "Self-test copy timed out, disabling\n"); err = -ENODEV; goto free_resources; } if (memcmp(src, dest, IOAT_TEST_SIZE)) { dev_err(&device->pdev->dev, - "ioatdma: Self-test copy failed compare, disabling\n"); + "Self-test copy failed compare, disabling\n"); err = -ENODEV; goto free_resources; } @@ -730,6 +737,9 @@ static int ioat_dma_setup_interrupts(struct ioatdma_device *device) goto msi; if (!strcmp(ioat_interrupt_style, "intx")) goto intx; + dev_err(&device->pdev->dev, "invalid ioat_interrupt_style %s\n", + ioat_interrupt_style); + goto err_no_irq; msix: /* The number of MSI-X vectors should equal the number of channels */ @@ -906,9 +916,9 @@ struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev, device->common.device_dependency_added = ioat_dma_dependency_added; device->common.dev = &pdev->dev; dev_err(&device->pdev->dev, - "ioatdma: Intel(R) I/OAT DMA Engine found," - " %d channels, device version 0x%02x\n", - device->common.chancnt, device->version); + "Intel(R) I/OAT DMA Engine found," + " %d channels, device version 0x%02x, driver version %s\n", + device->common.chancnt, device->version, IOAT_DMA_VERSION); err = ioat_dma_setup_interrupts(device); if (err) @@ -932,7 +942,7 @@ err_dma_pool: kfree(device); err_kzalloc: dev_err(&device->pdev->dev, - "ioatdma: Intel(R) I/OAT DMA Engine initialization failed\n"); + "Intel(R) I/OAT DMA Engine initialization failed\n"); return NULL; } |