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| author | Dimitri Sivanich <[email protected]> | 2011-05-06 15:33:44 +0000 |
|---|---|---|
| committer | Dan Williams <[email protected]> | 2011-05-27 00:11:24 +0000 |
| commit | 19d78a61be6dd707dcec298c486303d4ba2c840a (patch) | |
| tree | 57c0bc50540ec0f49b7b972f14cee51bc4f22e60 /net/lapb/lapb_iface.c | |
| parent | maintainers: add dma engine tree details (diff) | |
| download | kernel-19d78a61be6dd707dcec298c486303d4ba2c840a.tar.gz kernel-19d78a61be6dd707dcec298c486303d4ba2c840a.zip | |
x86: poll waiting for I/OAT DMA channel status
For certain system configurations a 5 usec udelay before checking I/OAT DMA
channel status is sometimes not sufficient, resulting in a false failure
status and unnecessary freeing of channel resources. Conversely, for many
configurations 5 usec is longer than necessary.
Loop for up to 20 usec waiting for successful status before failing.
Signed-off-by: Dimitri Sivanich <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
Diffstat (limited to 'net/lapb/lapb_iface.c')
0 files changed, 0 insertions, 0 deletions