diff options
author | Harsh Jain <harsh@chelsio.com> | 2018-03-06 10:37:52 +0530 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-03-16 23:35:47 +0800 |
commit | 5110e65536f35e854f5d520b913505dbdbe22787 (patch) | |
tree | cea75b421f19e1b8cf1593cd77e782e8b30341a8 | |
parent | 7ffb911882a34a0d1f05ba64d78bf9b61d1e4179 (diff) | |
download | linux-5110e65536f35e854f5d520b913505dbdbe22787.tar.bz2 |
crypto: chelsio -Split Hash requests for large scatter gather list
Send multiple WRs to H/W when No. of entries received in scatter list
cannot be sent in single request.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r-- | drivers/crypto/chelsio/chcr_algo.c | 358 | ||||
-rw-r--r-- | drivers/crypto/chelsio/chcr_algo.h | 10 | ||||
-rw-r--r-- | drivers/crypto/chelsio/chcr_core.h | 6 | ||||
-rw-r--r-- | drivers/crypto/chelsio/chcr_crypto.h | 32 |
4 files changed, 298 insertions, 108 deletions
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index 85070760333d..4617c7acf4da 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -131,6 +131,11 @@ static inline int is_ofld_imm(const struct sk_buff *skb) return (skb->len <= SGE_MAX_WR_LEN); } +static inline void chcr_init_hctx_per_wr(struct chcr_ahash_req_ctx *reqctx) +{ + memset(&reqctx->hctx_wr, 0, sizeof(struct chcr_hctx_per_wr)); +} + static int sg_nents_xlen(struct scatterlist *sg, unsigned int reqlen, unsigned int entlen, unsigned int skip) @@ -165,6 +170,7 @@ static inline void chcr_handle_ahash_resp(struct ahash_request *req, int err) { struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req); + struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr; int digestsize, updated_digestsize; struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm)); @@ -172,25 +178,43 @@ static inline void chcr_handle_ahash_resp(struct ahash_request *req, if (input == NULL) goto out; digestsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(req)); - if (reqctx->is_sg_map) - chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); - if (reqctx->dma_addr) - dma_unmap_single(&u_ctx->lldi.pdev->dev, reqctx->dma_addr, - reqctx->dma_len, DMA_TO_DEVICE); - reqctx->dma_addr = 0; updated_digestsize = digestsize; if (digestsize == SHA224_DIGEST_SIZE) updated_digestsize = SHA256_DIGEST_SIZE; else if (digestsize == SHA384_DIGEST_SIZE) updated_digestsize = SHA512_DIGEST_SIZE; - if (reqctx->result == 1) { - reqctx->result = 0; - memcpy(req->result, input + sizeof(struct cpl_fw6_pld), - digestsize); - } else { - memcpy(reqctx->partial_hash, input + sizeof(struct cpl_fw6_pld), - updated_digestsize); + + if (hctx_wr->dma_addr) { + dma_unmap_single(&u_ctx->lldi.pdev->dev, hctx_wr->dma_addr, + hctx_wr->dma_len, DMA_TO_DEVICE); + hctx_wr->dma_addr = 0; + } + if (hctx_wr->isfinal || ((hctx_wr->processed + reqctx->reqlen) == + req->nbytes)) { + if (hctx_wr->result == 1) { + hctx_wr->result = 0; + memcpy(req->result, input + sizeof(struct cpl_fw6_pld), + digestsize); + } else { + memcpy(reqctx->partial_hash, + input + sizeof(struct cpl_fw6_pld), + updated_digestsize); + + } + goto unmap; } + memcpy(reqctx->partial_hash, input + sizeof(struct cpl_fw6_pld), + updated_digestsize); + + err = chcr_ahash_continue(req); + if (err) + goto unmap; + return; +unmap: + if (hctx_wr->is_sg_map) + chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); + + out: req->base.complete(&req->base, err); } @@ -563,7 +587,6 @@ static void ulptx_walk_add_sg(struct ulptx_walk *walk, if (!len) return; - while (sg && skip) { if (sg_dma_len(sg) <= skip) { skip -= sg_dma_len(sg); @@ -653,6 +676,35 @@ static int generate_copy_rrkey(struct ablk_ctx *ablkctx, } return 0; } + +static int chcr_hash_ent_in_wr(struct scatterlist *src, + unsigned int minsg, + unsigned int space, + unsigned int srcskip) +{ + int srclen = 0; + int srcsg = minsg; + int soffset = 0, sless; + + if (sg_dma_len(src) == srcskip) { + src = sg_next(src); + srcskip = 0; + } + while (src && space > (sgl_ent_len[srcsg + 1])) { + sless = min_t(unsigned int, sg_dma_len(src) - soffset - srcskip, + CHCR_SRC_SG_SIZE); + srclen += sless; + soffset += sless; + srcsg++; + if (sg_dma_len(src) == (soffset + srcskip)) { + src = sg_next(src); + soffset = 0; + srcskip = 0; + } + } + return srclen; +} + static int chcr_sg_ent_in_wr(struct scatterlist *src, struct scatterlist *dst, unsigned int minsg, @@ -1153,7 +1205,7 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req, } if (!reqctx->imm) { bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 1, - SPACE_LEFT(ablkctx->enckey_len), + CIP_SPACE_LEFT(ablkctx->enckey_len), reqctx->src_ofst, reqctx->dst_ofst); if ((bytes + reqctx->processed) >= req->nbytes) bytes = req->nbytes - reqctx->processed; @@ -1257,7 +1309,7 @@ static int process_cipher(struct ablkcipher_request *req, if (!reqctx->imm) { bytes = chcr_sg_ent_in_wr(req->src, req->dst, MIN_CIPHER_SG, - SPACE_LEFT(ablkctx->enckey_len), + CIP_SPACE_LEFT(ablkctx->enckey_len), 0, 0); if ((bytes + reqctx->processed) >= req->nbytes) bytes = req->nbytes - reqctx->processed; @@ -1513,35 +1565,24 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req, struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm)); struct chcr_wr *chcr_req; struct ulptx_sgl *ulptx; - unsigned int nents = 0, transhdr_len, iopad_alignment = 0; - unsigned int digestsize = crypto_ahash_digestsize(tfm); - unsigned int kctx_len = 0, temp = 0; - u8 hash_size_in_response = 0; + unsigned int nents = 0, transhdr_len; + unsigned int temp = 0; gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC; struct adapter *adap = padap(h_ctx(tfm)->dev); int error = 0; - iopad_alignment = KEYCTX_ALIGN_PAD(digestsize); - kctx_len = param->alg_prm.result_size + iopad_alignment; - if (param->opad_needed) - kctx_len += param->alg_prm.result_size + iopad_alignment; - - if (req_ctx->result) - hash_size_in_response = digestsize; - else - hash_size_in_response = param->alg_prm.result_size; - transhdr_len = HASH_TRANSHDR_SIZE(kctx_len); - req_ctx->imm = (transhdr_len + param->bfr_len + param->sg_len) <= - SGE_MAX_WR_LEN; - nents = sg_nents_xlen(req->src, param->sg_len, CHCR_SRC_SG_SIZE, 0); + transhdr_len = HASH_TRANSHDR_SIZE(param->kctx_len); + req_ctx->hctx_wr.imm = (transhdr_len + param->bfr_len + + param->sg_len) <= SGE_MAX_WR_LEN; + nents = sg_nents_xlen(req_ctx->hctx_wr.srcsg, param->sg_len, + CHCR_SRC_SG_SIZE, req_ctx->hctx_wr.src_ofst); nents += param->bfr_len ? 1 : 0; - transhdr_len += req_ctx->imm ? roundup((param->bfr_len + - param->sg_len), 16) : - (sgl_len(nents) * 8); + transhdr_len += req_ctx->hctx_wr.imm ? roundup(param->bfr_len + + param->sg_len, 16) : (sgl_len(nents) * 8); transhdr_len = roundup(transhdr_len, 16); - skb = alloc_skb(SGE_MAX_WR_LEN, flags); + skb = alloc_skb(transhdr_len, flags); if (!skb) return ERR_PTR(-ENOMEM); chcr_req = __skb_put_zero(skb, transhdr_len); @@ -1573,33 +1614,33 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req, chcr_req->key_ctx.ctx_hdr = FILL_KEY_CTX_HDR(CHCR_KEYCTX_NO_KEY, param->alg_prm.mk_size, 0, param->opad_needed, - ((kctx_len + + ((param->kctx_len + sizeof(chcr_req->key_ctx)) >> 4)); chcr_req->sec_cpl.scmd1 = cpu_to_be64((u64)param->scmd1); - ulptx = (struct ulptx_sgl *)((u8 *)(chcr_req + 1) + kctx_len + + ulptx = (struct ulptx_sgl *)((u8 *)(chcr_req + 1) + param->kctx_len + DUMMY_BYTES); if (param->bfr_len != 0) { - req_ctx->dma_addr = dma_map_single(&u_ctx->lldi.pdev->dev, - req_ctx->reqbfr, param->bfr_len, - DMA_TO_DEVICE); + req_ctx->hctx_wr.dma_addr = + dma_map_single(&u_ctx->lldi.pdev->dev, req_ctx->reqbfr, + param->bfr_len, DMA_TO_DEVICE); if (dma_mapping_error(&u_ctx->lldi.pdev->dev, - req_ctx->dma_addr)) { + req_ctx->hctx_wr. dma_addr)) { error = -ENOMEM; goto err; } - req_ctx->dma_len = param->bfr_len; + req_ctx->hctx_wr.dma_len = param->bfr_len; } else { - req_ctx->dma_addr = 0; + req_ctx->hctx_wr.dma_addr = 0; } chcr_add_hash_src_ent(req, ulptx, param); /* Request upto max wr size */ - temp = kctx_len + DUMMY_BYTES + (req_ctx->imm ? (param->sg_len - + param->bfr_len) : 0); + temp = param->kctx_len + DUMMY_BYTES + (req_ctx->hctx_wr.imm ? + (param->sg_len + param->bfr_len) : 0); atomic_inc(&adap->chcr_stats.digest_rqst); - create_wreq(h_ctx(tfm), chcr_req, &req->base, req_ctx->imm, - hash_size_in_response, transhdr_len, + create_wreq(h_ctx(tfm), chcr_req, &req->base, req_ctx->hctx_wr.imm, + param->hash_size, transhdr_len, temp, 0); - req_ctx->skb = skb; + req_ctx->hctx_wr.skb = skb; return skb; err: kfree_skb(skb); @@ -1618,7 +1659,6 @@ static int chcr_ahash_update(struct ahash_request *req) int error; bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); - u_ctx = ULD_CTX(h_ctx(rtfm)); if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], h_ctx(rtfm)->tx_qidx))) { @@ -1635,17 +1675,26 @@ static int chcr_ahash_update(struct ahash_request *req) req_ctx->reqlen += nbytes; return 0; } + chcr_init_hctx_per_wr(req_ctx); error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); if (error) return -ENOMEM; + get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); + params.kctx_len = roundup(params.alg_prm.result_size, 16); + params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen, + HASH_SPACE_LEFT(params.kctx_len), 0); + if (params.sg_len > req->nbytes) + params.sg_len = req->nbytes; + params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs) - + req_ctx->reqlen; params.opad_needed = 0; params.more = 1; params.last = 0; - params.sg_len = nbytes - req_ctx->reqlen; params.bfr_len = req_ctx->reqlen; params.scmd1 = 0; - get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); - req_ctx->result = 0; + req_ctx->hctx_wr.srcsg = req->src; + + params.hash_size = params.alg_prm.result_size; req_ctx->data_len += params.sg_len + params.bfr_len; skb = create_hash_wr(req, ¶ms); if (IS_ERR(skb)) { @@ -1653,6 +1702,7 @@ static int chcr_ahash_update(struct ahash_request *req) goto unmap; } + req_ctx->hctx_wr.processed += params.sg_len; if (remainder) { /* Swap buffers */ swap(req_ctx->reqbfr, req_ctx->skbfr); @@ -1690,16 +1740,27 @@ static int chcr_ahash_final(struct ahash_request *req) struct uld_ctx *u_ctx = NULL; u8 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); + chcr_init_hctx_per_wr(req_ctx); u_ctx = ULD_CTX(h_ctx(rtfm)); if (is_hmac(crypto_ahash_tfm(rtfm))) params.opad_needed = 1; else params.opad_needed = 0; params.sg_len = 0; + req_ctx->hctx_wr.isfinal = 1; get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); - req_ctx->result = 1; + params.kctx_len = roundup(params.alg_prm.result_size, 16); + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.opad_needed = 1; + params.kctx_len *= 2; + } else { + params.opad_needed = 0; + } + + req_ctx->hctx_wr.result = 1; params.bfr_len = req_ctx->reqlen; req_ctx->data_len += params.bfr_len + params.sg_len; + req_ctx->hctx_wr.srcsg = req->src; if (req_ctx->reqlen == 0) { create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len); params.last = 0; @@ -1712,16 +1773,81 @@ static int chcr_ahash_final(struct ahash_request *req) params.last = 1; params.more = 0; } + params.hash_size = crypto_ahash_digestsize(rtfm); skb = create_hash_wr(req, ¶ms); if (IS_ERR(skb)) return PTR_ERR(skb); - + req_ctx->reqlen = 0; skb->dev = u_ctx->lldi.ports[0]; set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx); chcr_send_wr(skb); return -EINPROGRESS; } +static int chcr_ahash_continue(struct ahash_request *req) +{ + struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req); + struct chcr_hctx_per_wr *hctx_wr = &reqctx->hctx_wr; + struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req); + struct uld_ctx *u_ctx = NULL; + struct sk_buff *skb; + struct hash_wr_param params; + u8 bs; + int error; + + bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); + u_ctx = ULD_CTX(h_ctx(rtfm)); + if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], + h_ctx(rtfm)->tx_qidx))) { + if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + return -EBUSY; + } + get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); + params.kctx_len = roundup(params.alg_prm.result_size, 16); + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.kctx_len *= 2; + params.opad_needed = 1; + } else { + params.opad_needed = 0; + } + params.sg_len = chcr_hash_ent_in_wr(hctx_wr->srcsg, 0, + HASH_SPACE_LEFT(params.kctx_len), + hctx_wr->src_ofst); + if ((params.sg_len + hctx_wr->processed) > req->nbytes) + params.sg_len = req->nbytes - hctx_wr->processed; + if (!hctx_wr->result || + ((params.sg_len + hctx_wr->processed) < req->nbytes)) { + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.kctx_len /= 2; + params.opad_needed = 0; + } + params.last = 0; + params.more = 1; + params.sg_len = rounddown(params.sg_len, bs); + params.hash_size = params.alg_prm.result_size; + params.scmd1 = 0; + } else { + params.last = 1; + params.more = 0; + params.hash_size = crypto_ahash_digestsize(rtfm); + params.scmd1 = reqctx->data_len + params.sg_len; + } + params.bfr_len = 0; + reqctx->data_len += params.sg_len; + skb = create_hash_wr(req, ¶ms); + if (IS_ERR(skb)) { + error = PTR_ERR(skb); + goto err; + } + hctx_wr->processed += params.sg_len; + skb->dev = u_ctx->lldi.ports[0]; + set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx); + chcr_send_wr(skb); + return 0; +err: + return error; +} + static int chcr_ahash_finup(struct ahash_request *req) { struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req); @@ -1740,37 +1866,59 @@ static int chcr_ahash_finup(struct ahash_request *req) if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) return -EBUSY; } + chcr_init_hctx_per_wr(req_ctx); + error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); + if (error) + return -ENOMEM; - if (is_hmac(crypto_ahash_tfm(rtfm))) + get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); + params.kctx_len = roundup(params.alg_prm.result_size, 16); + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.kctx_len *= 2; params.opad_needed = 1; - else + } else { params.opad_needed = 0; + } - params.sg_len = req->nbytes; + params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen, + HASH_SPACE_LEFT(params.kctx_len), 0); + if (params.sg_len < req->nbytes) { + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.kctx_len /= 2; + params.opad_needed = 0; + } + params.last = 0; + params.more = 1; + params.sg_len = rounddown(params.sg_len + req_ctx->reqlen, bs) + - req_ctx->reqlen; + params.hash_size = params.alg_prm.result_size; + params.scmd1 = 0; + } else { + params.last = 1; + params.more = 0; + params.sg_len = req->nbytes; + params.hash_size = crypto_ahash_digestsize(rtfm); + params.scmd1 = req_ctx->data_len + req_ctx->reqlen + + params.sg_len; + } params.bfr_len = req_ctx->reqlen; - get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); req_ctx->data_len += params.bfr_len + params.sg_len; - req_ctx->result = 1; + req_ctx->hctx_wr.result = 1; + req_ctx->hctx_wr.srcsg = req->src; if ((req_ctx->reqlen + req->nbytes) == 0) { create_last_hash_block(req_ctx->reqbfr, bs, req_ctx->data_len); params.last = 0; params.more = 1; params.scmd1 = 0; params.bfr_len = bs; - } else { - params.scmd1 = req_ctx->data_len; - params.last = 1; - params.more = 0; } - error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); - if (error) - return -ENOMEM; - skb = create_hash_wr(req, ¶ms); if (IS_ERR(skb)) { error = PTR_ERR(skb); goto unmap; } + req_ctx->reqlen = 0; + req_ctx->hctx_wr.processed += params.sg_len; skb->dev = u_ctx->lldi.ports[0]; set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx); chcr_send_wr(skb); @@ -1801,21 +1949,42 @@ static int chcr_ahash_digest(struct ahash_request *req) return -EBUSY; } - if (is_hmac(crypto_ahash_tfm(rtfm))) - params.opad_needed = 1; - else - params.opad_needed = 0; + chcr_init_hctx_per_wr(req_ctx); error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); if (error) return -ENOMEM; - params.last = 0; - params.more = 0; - params.sg_len = req->nbytes; - params.bfr_len = 0; - params.scmd1 = 0; get_alg_config(¶ms.alg_prm, crypto_ahash_digestsize(rtfm)); - req_ctx->result = 1; + params.kctx_len = roundup(params.alg_prm.result_size, 16); + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.kctx_len *= 2; + params.opad_needed = 1; + } else { + params.opad_needed = 0; + } + params.sg_len = chcr_hash_ent_in_wr(req->src, !!req_ctx->reqlen, + HASH_SPACE_LEFT(params.kctx_len), 0); + if (params.sg_len < req->nbytes) { + if (is_hmac(crypto_ahash_tfm(rtfm))) { + params.kctx_len /= 2; + params.opad_needed = 0; + } + params.last = 0; + params.more = 1; + params.scmd1 = 0; + params.sg_len = rounddown(params.sg_len, bs); + params.hash_size = params.alg_prm.result_size; + } else { + params.sg_len = req->nbytes; + params.hash_size = crypto_ahash_digestsize(rtfm); + params.last = 1; + params.more = 0; + params.scmd1 = req->nbytes + req_ctx->data_len; + + } + params.bfr_len = 0; + req_ctx->hctx_wr.result = 1; + req_ctx->hctx_wr.srcsg = req->src; req_ctx->data_len += params.bfr_len + params.sg_len; if (req->nbytes == 0) { @@ -1829,6 +1998,7 @@ static int chcr_ahash_digest(struct ahash_request *req) error = PTR_ERR(skb); goto unmap; } + req_ctx->hctx_wr.processed += params.sg_len; skb->dev = u_ctx->lldi.ports[0]; set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx); chcr_send_wr(skb); @@ -1845,11 +2015,10 @@ static int chcr_ahash_export(struct ahash_request *areq, void *out) state->reqlen = req_ctx->reqlen; state->data_len = req_ctx->data_len; - state->is_sg_map = 0; - state->result = 0; memcpy(state->bfr1, req_ctx->reqbfr, req_ctx->reqlen); memcpy(state->partial_hash, req_ctx->partial_hash, CHCR_HASH_MAX_DIGEST_SIZE); + chcr_init_hctx_per_wr(state); return 0; } @@ -1862,11 +2031,10 @@ static int chcr_ahash_import(struct ahash_request *areq, const void *in) req_ctx->data_len = state->data_len; req_ctx->reqbfr = req_ctx->bfr1; req_ctx->skbfr = req_ctx->bfr2; - req_ctx->is_sg_map = 0; - req_ctx->result = 0; memcpy(req_ctx->bfr1, state->bfr1, CHCR_HASH_MAX_BLOCK_SIZE_128); memcpy(req_ctx->partial_hash, state->partial_hash, CHCR_HASH_MAX_DIGEST_SIZE); + chcr_init_hctx_per_wr(req_ctx); return 0; } @@ -1963,10 +2131,8 @@ static int chcr_sha_init(struct ahash_request *areq) req_ctx->reqlen = 0; req_ctx->reqbfr = req_ctx->bfr1; req_ctx->skbfr = req_ctx->bfr2; - req_ctx->skb = NULL; - req_ctx->result = 0; - req_ctx->is_sg_map = 0; copy_hash_init_values(req_ctx->partial_hash, digestsize); + return 0; } @@ -2407,22 +2573,26 @@ void chcr_add_hash_src_ent(struct ahash_request *req, struct ulptx_walk ulp_walk; struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req); - if (reqctx->imm) { + if (reqctx->hctx_wr.imm) { u8 *buf = (u8 *)ulptx; if (param->bfr_len) { memcpy(buf, reqctx->reqbfr, param->bfr_len); buf += param->bfr_len; } - sg_pcopy_to_buffer(req->src, sg_nents(req->src), - buf, param->sg_len, 0); + + sg_pcopy_to_buffer(reqctx->hctx_wr.srcsg, + sg_nents(reqctx->hctx_wr.srcsg), buf, + param->sg_len, 0); } else { ulptx_walk_init(&ulp_walk, ulptx); if (param->bfr_len) ulptx_walk_add_page(&ulp_walk, param->bfr_len, - &reqctx->dma_addr); - ulptx_walk_add_sg(&ulp_walk, req->src, param->sg_len, - 0); + &reqctx->hctx_wr.dma_addr); + ulptx_walk_add_sg(&ulp_walk, reqctx->hctx_wr.srcsg, + param->sg_len, reqctx->hctx_wr.src_ofst); + reqctx->hctx_wr.srcsg = ulp_walk.last_sg; + reqctx->hctx_wr.src_ofst = ulp_walk.last_sg_len; ulptx_walk_end(&ulp_walk); } } @@ -2439,7 +2609,7 @@ int chcr_hash_dma_map(struct device *dev, DMA_TO_DEVICE); if (!error) return -ENOMEM; - req_ctx->is_sg_map = 1; + req_ctx->hctx_wr.is_sg_map = 1; return 0; } @@ -2453,7 +2623,7 @@ void chcr_hash_dma_unmap(struct device *dev, dma_unmap_sg(dev, req->src, sg_nents(req->src), DMA_TO_DEVICE); - req_ctx->is_sg_map = 0; + req_ctx->hctx_wr.is_sg_map = 0; } diff --git a/drivers/crypto/chelsio/chcr_algo.h b/drivers/crypto/chelsio/chcr_algo.h index 7742b65a9ac5..6748c293ccd4 100644 --- a/drivers/crypto/chelsio/chcr_algo.h +++ b/drivers/crypto/chelsio/chcr_algo.h @@ -222,8 +222,10 @@ #define MIN_GCM_SG 1 /* IV */ #define MIN_DIGEST_SG 1 /*Partial Buffer*/ #define MIN_CCM_SG 2 /*IV+B0*/ -#define SPACE_LEFT(len) \ - ((SGE_MAX_WR_LEN - WR_MIN_LEN - (len))) +#define CIP_SPACE_LEFT(len) \ + ((SGE_MAX_WR_LEN - CIP_WR_MIN_LEN - (len))) +#define HASH_SPACE_LEFT(len) \ + ((SGE_MAX_WR_LEN - HASH_WR_MIN_LEN - (len))) struct algo_param { unsigned int auth_mode; @@ -232,12 +234,14 @@ struct algo_param { }; struct hash_wr_param { + struct algo_param alg_prm; unsigned int opad_needed; unsigned int more; unsigned int last; - struct algo_param alg_prm; + unsigned int kctx_len; unsigned int sg_len; unsigned int bfr_len; + unsigned int hash_size; u64 scmd1; }; diff --git a/drivers/crypto/chelsio/chcr_core.h b/drivers/crypto/chelsio/chcr_core.h index 3c29ee09b8b5..90fbc985da0c 100644 --- a/drivers/crypto/chelsio/chcr_core.h +++ b/drivers/crypto/chelsio/chcr_core.h @@ -54,10 +54,14 @@ #define MAC_ERROR_BIT 0 #define CHK_MAC_ERR_BIT(x) (((x) >> MAC_ERROR_BIT) & 1) #define MAX_SALT 4 -#define WR_MIN_LEN (sizeof(struct chcr_wr) + \ +#define CIP_WR_MIN_LEN (sizeof(struct chcr_wr) + \ sizeof(struct cpl_rx_phys_dsgl) + \ sizeof(struct ulptx_sgl)) +#define HASH_WR_MIN_LEN (sizeof(struct chcr_wr) + \ + DUMMY_BYTES + \ + sizeof(struct ulptx_sgl)) + #define padap(dev) pci_get_drvdata(dev->u_ctx->lldi.pdev) struct uld_ctx; diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h index 7daf0a17a7d2..71025ea9c3db 100644 --- a/drivers/crypto/chelsio/chcr_crypto.h +++ b/drivers/crypto/chelsio/chcr_crypto.h @@ -258,21 +258,32 @@ struct chcr_context { struct __crypto_ctx crypto_ctx[0]; }; -struct chcr_ahash_req_ctx { +struct chcr_hctx_per_wr { + struct scatterlist *srcsg; + struct sk_buff *skb; + dma_addr_t dma_addr; + u32 dma_len; + unsigned int src_ofst; + unsigned int processed; u32 result; - u8 bfr1[CHCR_HASH_MAX_BLOCK_SIZE_128]; - u8 bfr2[CHCR_HASH_MAX_BLOCK_SIZE_128]; + u8 is_sg_map; + u8 imm; + /*Final callback called. Driver cannot rely on nbytes to decide + * final call + */ + u8 isfinal; +}; + +struct chcr_ahash_req_ctx { + struct chcr_hctx_per_wr hctx_wr; u8 *reqbfr; u8 *skbfr; - dma_addr_t dma_addr; - u32 dma_len; + /* SKB which is being sent to the hardware for processing */ + u64 data_len; /* Data len till time */ u8 reqlen; - u8 imm; - u8 is_sg_map; u8 partial_hash[CHCR_HASH_MAX_DIGEST_SIZE]; - u64 data_len; /* Data len till time */ - /* SKB which is being sent to the hardware for processing */ - struct sk_buff *skb; + u8 bfr1[CHCR_HASH_MAX_BLOCK_SIZE_128]; + u8 bfr2[CHCR_HASH_MAX_BLOCK_SIZE_128]; }; struct chcr_blkcipher_req_ctx { @@ -329,4 +340,5 @@ void chcr_add_hash_src_ent(struct ahash_request *req, struct ulptx_sgl *ulptx, struct hash_wr_param *param); int chcr_hash_dma_map(struct device *dev, struct ahash_request *req); void chcr_hash_dma_unmap(struct device *dev, struct ahash_request *req); +static int chcr_ahash_continue(struct ahash_request *req); #endif /* __CHCR_CRYPTO_H__ */ |