diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2013-03-27 02:43:15 +0400 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-04-15 08:21:20 +0400 |
| commit | eceec44ecd7f3285468a684e7216df2316b178f3 (patch) | |
| tree | 9607c250ac6d2a9415877f768fc427c40de8f453 /drivers/dma/ioat | |
| parent | 3f09ede4237fe4691ac687c6c43cb4c1a530777b (diff) | |
| download | linux-eceec44ecd7f3285468a684e7216df2316b178f3.tar.xz | |
ioatdma: skip silicon bug workaround for pq_align for cb3.3
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>
Diffstat (limited to 'drivers/dma/ioat')
| -rw-r--r-- | drivers/dma/ioat/dma_v3.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index 9628ba2ff70c..cf97e3f16924 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -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); - dma->pq_align = 6; + 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; - dma->xor_align = 6; + 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; |