diff options
Diffstat (limited to 'crypto/async_tx/async_raid6_recov.c')
| -rw-r--r-- | crypto/async_tx/async_raid6_recov.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/crypto/async_tx/async_raid6_recov.c b/crypto/async_tx/async_raid6_recov.c index 0c14d48..822a42d 100644 --- a/crypto/async_tx/async_raid6_recov.c +++ b/crypto/async_tx/async_raid6_recov.c @@ -44,6 +44,8 @@ async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef, struct dma_async_tx_descriptor *tx; enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P; + if (submit->flags & ASYNC_TX_FENCE) + dma_flags |= DMA_PREP_FENCE; dma_dest[1] = dma_map_page(dev, dest, 0, len, DMA_BIDIRECTIONAL); dma_src[0] = dma_map_page(dev, srcs[0], 0, len, DMA_TO_DEVICE); dma_src[1] = dma_map_page(dev, srcs[1], 0, len, DMA_TO_DEVICE); @@ -89,6 +91,8 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len, struct dma_async_tx_descriptor *tx; enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P; + if (submit->flags & ASYNC_TX_FENCE) + dma_flags |= DMA_PREP_FENCE; dma_dest[1] = dma_map_page(dev, dest, 0, len, DMA_BIDIRECTIONAL); dma_src[0] = dma_map_page(dev, src, 0, len, DMA_TO_DEVICE); tx = dma->device_prep_dma_pq(chan, dma_dest, dma_src, 1, &coef, @@ -138,7 +142,7 @@ __2data_recov_4(size_t bytes, int faila, int failb, struct page **blocks, srcs[1] = q; coef[0] = raid6_gfexi[failb-faila]; coef[1] = raid6_gfinv[raid6_gfexp[faila]^raid6_gfexp[failb]]; - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_sum_product(b, srcs, coef, bytes, submit); /* Dy = P+Pxy+Dx */ @@ -188,23 +192,23 @@ __2data_recov_5(size_t bytes, int faila, int failb, struct page **blocks, dp = blocks[faila]; dq = blocks[failb]; - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_memcpy(dp, g, 0, 0, bytes, submit); - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_mult(dq, g, raid6_gfexp[good], bytes, submit); /* compute P + Pxy */ srcs[0] = dp; srcs[1] = p; - init_async_submit(submit, ASYNC_TX_XOR_DROP_DST, tx, NULL, NULL, - scribble); + init_async_submit(submit, ASYNC_TX_FENCE|ASYNC_TX_XOR_DROP_DST, tx, + NULL, NULL, scribble); tx = async_xor(dp, srcs, 0, 2, bytes, submit); /* compute Q + Qxy */ srcs[0] = dq; srcs[1] = q; - init_async_submit(submit, ASYNC_TX_XOR_DROP_DST, tx, NULL, NULL, - scribble); + init_async_submit(submit, ASYNC_TX_FENCE|ASYNC_TX_XOR_DROP_DST, tx, + NULL, NULL, scribble); tx = async_xor(dq, srcs, 0, 2, bytes, submit); /* Dx = A*(P+Pxy) + B*(Q+Qxy) */ @@ -212,7 +216,7 @@ __2data_recov_5(size_t bytes, int faila, int failb, struct page **blocks, srcs[1] = dq; coef[0] = raid6_gfexi[failb-faila]; coef[1] = raid6_gfinv[raid6_gfexp[faila]^raid6_gfexp[failb]]; - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_sum_product(dq, srcs, coef, bytes, submit); /* Dy = P+Pxy+Dx */ @@ -252,7 +256,7 @@ __2data_recov_n(int disks, size_t bytes, int faila, int failb, blocks[failb] = (void *)raid6_empty_zero_page; blocks[disks-1] = dq; - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_gen_syndrome(blocks, 0, disks, bytes, submit); /* Restore pointer table */ @@ -264,15 +268,15 @@ __2data_recov_n(int disks, size_t bytes, int faila, int failb, /* compute P + Pxy */ srcs[0] = dp; srcs[1] = p; - init_async_submit(submit, ASYNC_TX_XOR_DROP_DST, tx, NULL, NULL, - scribble); + init_async_submit(submit, ASYNC_TX_FENCE|ASYNC_TX_XOR_DROP_DST, tx, + NULL, NULL, scribble); tx = async_xor(dp, srcs, 0, 2, bytes, submit); /* compute Q + Qxy */ srcs[0] = dq; srcs[1] = q; - init_async_submit(submit, ASYNC_TX_XOR_DROP_DST, tx, NULL, NULL, - scribble); + init_async_submit(submit, ASYNC_TX_FENCE|ASYNC_TX_XOR_DROP_DST, tx, + NULL, NULL, scribble); tx = async_xor(dq, srcs, 0, 2, bytes, submit); /* Dx = A*(P+Pxy) + B*(Q+Qxy) */ @@ -280,7 +284,7 @@ __2data_recov_n(int disks, size_t bytes, int faila, int failb, srcs[1] = dq; coef[0] = raid6_gfexi[failb-faila]; coef[1] = raid6_gfinv[raid6_gfexp[faila]^raid6_gfexp[failb]]; - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_sum_product(dq, srcs, coef, bytes, submit); /* Dy = P+Pxy+Dx */ @@ -407,13 +411,16 @@ async_raid6_datap_recov(int disks, size_t bytes, int faila, int good = faila == 0 ? 1 : 0; struct page *g = blocks[good]; - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, + scribble); tx = async_memcpy(p, g, 0, 0, bytes, submit); - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, + scribble); tx = async_mult(dq, g, raid6_gfexp[good], bytes, submit); } else { - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, + scribble); tx = async_gen_syndrome(blocks, 0, disks, bytes, submit); } @@ -426,11 +433,11 @@ async_raid6_datap_recov(int disks, size_t bytes, int faila, srcs[0] = dq; srcs[1] = q; - init_async_submit(submit, ASYNC_TX_XOR_DROP_DST, tx, NULL, NULL, - scribble); + init_async_submit(submit, ASYNC_TX_FENCE|ASYNC_TX_XOR_DROP_DST, tx, + NULL, NULL, scribble); tx = async_xor(dq, srcs, 0, 2, bytes, submit); - init_async_submit(submit, 0, tx, NULL, NULL, scribble); + init_async_submit(submit, ASYNC_TX_FENCE, tx, NULL, NULL, scribble); tx = async_mult(dq, dq, coef, bytes, submit); srcs[0] = p; |
