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Commit eceec44e authored by Dave Jiang's avatar Dave Jiang Committed by Vinod Koul
Browse files

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: default avatarDave Jiang <dave.jiang@intel.com>
Acked-by: default avatarDan Williams <djbw@fb.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 3f09ede4

drivers/dma/ioat/dma_v3.c

+10 −2
Original line number Diff line number Diff line
@@ -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;