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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2016-03-22 22:27:02 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-22 23:36:02 +0100 |
| commit | e680b672a2b47748ee548229242b543a23b902c1 (patch) | |
| tree | b4280e3880b2d130f3b134515d69f6d43e1edc35 /.gitignore | |
| parent | rapidio/tsi721_dma: update error reporting from prep_sg callback (diff) | |
| download | linux-e680b672a2b47748ee548229242b543a23b902c1.tar.xz linux-e680b672a2b47748ee548229242b543a23b902c1.zip | |
rapidio/tsi721_dma: fix synchronization issues
Fix synchronization issues found during testing using multiple DMA
transfer requests to the same channel:
- lost MSI-X interrupt notifications
- non-synchronized attempts to start DMA channel HW resulting in error
message from the driver
- cookie tracking/update race conditions resulting in incorrect DMA
transfer status report
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Reported-by: Barry Wood <barry.wood@idt.com>
Tested-by: Barry Wood <barry.wood@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Barry Wood <barry.wood@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions