AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

ioatdma: skip silicon bug workaround for pq_align for cb3.3

Browse Source 
The alignment workaround is only necessary for cb3.2 or earlier platforms.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dan Williams <djbw@fb.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Dave Jiang 2013-03-26 15:43:15 -07:00 committed by Vinod Koul
parent 3f09ede423
commit eceec44ecd
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/dma/ioat/dma_v3.c
View File

@ -1521,10 +1521,14 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca)
dma_cap_set(DMA_XOR_VAL, dma->cap_mask);
dma->device_prep_dma_xor_val = ioat3_prep_xor_val;
}
if (cap & IOAT_CAP_PQ) {
is_raid_device = true;
dma_set_maxpq(dma, 8, 0);
if (is_xeon_cb32(pdev))
dma->pq_align = 6;
else
dma->pq_align = 0;
dma_cap_set(DMA_PQ, dma->cap_mask);
dma->device_prep_dma_pq = ioat3_prep_pq;
@ -1534,7 +1538,10 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca)
if (!(cap & IOAT_CAP_XOR)) {
dma->max_xor = 8;
if (is_xeon_cb32(pdev))
dma->xor_align = 6;
else
dma->xor_align = 0;
dma_cap_set(DMA_XOR, dma->cap_mask);
dma->device_prep_dma_xor = ioat3_prep_pqxor;
@ -1543,6 +1550,7 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca)
dma->device_prep_dma_xor_val = ioat3_prep_pqxor_val;
}
}
if (is_raid_device && (cap & IOAT_CAP_FILL_BLOCK)) {
dma_cap_set(DMA_MEMSET, dma->cap_mask);
dma->device_prep_dma_memset = ioat3_prep_memset_lock;