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| author | Dave Jiang <dave.jiang@intel.com> | 2012-04-05 01:10:41 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2012-04-06 00:24:35 +0200 |
| commit | f26df1a1a9452573af7b6cea9a4723593e838568 (patch) | |
| tree | 5f45acfa1010edb9a1a481a9ad40e82322a75837 /drivers/dma/iop-adma.c | |
| parent | ioat: ring size variables need to be 32bit to avoid overflow (diff) | |
| download | linux-f26df1a1a9452573af7b6cea9a4723593e838568.tar.xz linux-f26df1a1a9452573af7b6cea9a4723593e838568.zip | |
ioatdma: DMA copy alignment needed to address IOAT DMA silicon errata
Silicon errata where when RAID and legacy descriptors are mixed, the legacy
(memcpy and friends) operation must have alignment of 64 bytes to avoid
hanging. This effects Intel Xeon C55xx, C35xx, E5-2600.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/iop-adma.c')
0 files changed, 0 insertions, 0 deletions