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I/OAT: fail self-test if callback test reaches timeout

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If we miss interrupts in the self test then fail registration of this
channel as it is unsuitable for use as a public channel.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-03-02 13:31:35 -07:00
parent 211a22ce08
commit 0c33e1ca3d
1 changed files with 4 additions and 2 deletions
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6
drivers/dma/ioat_dma.c
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@ -1363,6 +1363,7 @@ static int ioat_dma_self_test(struct ioatdma_device *device)
dma_cookie_t cookie;
int err = 0;
struct completion cmp;
unsigned long tmo;
src = kzalloc(sizeof(u8) * IOAT_TEST_SIZE, GFP_KERNEL);
if (!src)
@ -1414,9 +1415,10 @@ static int ioat_dma_self_test(struct ioatdma_device *device)
}
device->common.device_issue_pending(dma_chan);
wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
if (device->common.device_is_tx_complete(dma_chan, cookie, NULL, NULL)
if (tmo == 0 ||
device->common.device_is_tx_complete(dma_chan, cookie, NULL, NULL)
!= DMA_SUCCESS) {
dev_err(&device->pdev->dev,
"Self-test copy timed out, disabling\n");