kernel_optimize_test/drivers/dma/ioat
Dimitri Sivanich 19d78a61be 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 <sivanich@sgi.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-05-26 17:11:24 -07:00
..
dca.c ioat3: dca and raid operations are incompatible 2009-11-19 17:07:10 -07:00
dma_v2.c x86: poll waiting for I/OAT DMA channel status 2011-05-26 17:11:24 -07:00
dma_v2.h ioat2,3: convert to producer/consumer locking 2010-05-01 15:22:55 -07:00
dma_v3.c ioat2: catch and recover from broken vtd configurations v6 2010-08-04 14:18:17 -07:00
dma.c Merge branch 'ioat' into dmaengine 2010-05-17 16:30:58 -07:00
dma.h ioat2: catch and recover from broken vtd configurations v6 2010-08-04 14:18:17 -07:00
hw.h ioat3: dca and raid operations are incompatible 2009-11-19 17:07:10 -07:00
Makefile drivers/dma/ioat: Use the ccflag-y instead of EXTRA_CFLAGS 2010-12-04 15:03:06 -08:00
pci.c ioat: Remove duplicated devm_kzalloc() calls for ioatdma_device 2010-05-02 12:52:35 -07:00
registers.h ioat3: interrupt coalescing 2010-03-03 21:21:13 -07:00