From 6faa0f572518fd7fa1946ac477975e5d8e2f6ead Mon Sep 17 00:00:00 2001 From: Harsh Jain Date: Thu, 24 May 2018 17:26:37 +0530 Subject: [PATCH] crypto: chelsio - Return -ENOSPC for transient busy indication. Change the return type based on following patch https://www.mail-archive.com/linux-crypto@vger.kernel.org/msg28552.html Signed-off-by: Harsh Jain Signed-off-by: Herbert Xu --- drivers/crypto/chelsio/chcr_algo.c | 56 ++++++++++++++++++-------------------- 1 file changed, 26 insertions(+), 30 deletions(-) diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index 59fe6631e73e..db15a9fafe0d 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -688,6 +688,7 @@ static int chcr_cipher_fallback(struct crypto_skcipher *cipher, int err; SKCIPHER_REQUEST_ON_STACK(subreq, cipher); + skcipher_request_set_tfm(subreq, cipher); skcipher_request_set_callback(subreq, flags, NULL, NULL); skcipher_request_set_crypt(subreq, src, dst, @@ -1113,14 +1114,6 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req, goto complete; } - if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], - c_ctx(tfm)->tx_qidx))) { - if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { - err = -EBUSY; - goto unmap; - } - - } if (!reqctx->imm) { bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 1, CIP_SPACE_LEFT(ablkctx->enckey_len), @@ -1293,13 +1286,14 @@ static int chcr_aes_encrypt(struct ablkcipher_request *req) { struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); struct sk_buff *skb = NULL; - int err; + int err, isfull = 0; struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], c_ctx(tfm)->tx_qidx))) { + isfull = 1; if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EBUSY; + return -ENOSPC; } err = process_cipher(req, u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx], @@ -1309,7 +1303,7 @@ static int chcr_aes_encrypt(struct ablkcipher_request *req) skb->dev = u_ctx->lldi.ports[0]; set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx); chcr_send_wr(skb); - return -EINPROGRESS; + return isfull ? -EBUSY : -EINPROGRESS; } static int chcr_aes_decrypt(struct ablkcipher_request *req) @@ -1317,12 +1311,13 @@ static int chcr_aes_decrypt(struct ablkcipher_request *req) struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); struct sk_buff *skb = NULL; - int err; + int err, isfull = 0; if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], c_ctx(tfm)->tx_qidx))) { + isfull = 1; if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EBUSY; + return -ENOSPC; } err = process_cipher(req, u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx], @@ -1332,7 +1327,7 @@ static int chcr_aes_decrypt(struct ablkcipher_request *req) skb->dev = u_ctx->lldi.ports[0]; set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx); chcr_send_wr(skb); - return -EINPROGRESS; + return isfull ? -EBUSY : -EINPROGRESS; } static int chcr_device_init(struct chcr_context *ctx) @@ -1574,14 +1569,15 @@ static int chcr_ahash_update(struct ahash_request *req) u8 remainder = 0, bs; unsigned int nbytes = req->nbytes; struct hash_wr_param params; - int error; + int error, isfull = 0; 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))) { + isfull = 1; if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EBUSY; + return -ENOSPC; } if (nbytes + req_ctx->reqlen >= bs) { @@ -1633,7 +1629,7 @@ static int chcr_ahash_update(struct ahash_request *req) set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx); chcr_send_wr(skb); - return -EINPROGRESS; + return isfull ? -EBUSY : -EINPROGRESS; unmap: chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); return error; @@ -1710,15 +1706,16 @@ static int chcr_ahash_finup(struct ahash_request *req) struct sk_buff *skb; struct hash_wr_param params; u8 bs; - int error; + int error, isfull = 0; 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))) { + isfull = 1; if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EBUSY; + return -ENOSPC; } chcr_init_hctx_per_wr(req_ctx); error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req); @@ -1777,7 +1774,7 @@ static int chcr_ahash_finup(struct ahash_request *req) set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx); chcr_send_wr(skb); - return -EINPROGRESS; + return isfull ? -EBUSY : -EINPROGRESS; unmap: chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); return error; @@ -1791,7 +1788,7 @@ static int chcr_ahash_digest(struct ahash_request *req) struct sk_buff *skb; struct hash_wr_param params; u8 bs; - int error; + int error, isfull = 0; rtfm->init(req); bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm)); @@ -1799,8 +1796,9 @@ static int chcr_ahash_digest(struct ahash_request *req) u_ctx = ULD_CTX(h_ctx(rtfm)); if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], h_ctx(rtfm)->tx_qidx))) { + isfull = 1; if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EBUSY; + return -ENOSPC; } chcr_init_hctx_per_wr(req_ctx); @@ -1856,7 +1854,7 @@ static int chcr_ahash_digest(struct ahash_request *req) 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; + return isfull ? -EBUSY : -EINPROGRESS; unmap: chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req); return error; @@ -1875,11 +1873,6 @@ static int chcr_ahash_continue(struct ahash_request *req) 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))) { @@ -3461,6 +3454,7 @@ static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key, } { SHASH_DESC_ON_STACK(shash, base_hash); + shash->tfm = base_hash; shash->flags = crypto_shash_get_flags(base_hash); bs = crypto_shash_blocksize(base_hash); @@ -3592,6 +3586,7 @@ static int chcr_aead_op(struct aead_request *req, struct crypto_aead *tfm = crypto_aead_reqtfm(req); struct uld_ctx *u_ctx; struct sk_buff *skb; + int isfull = 0; if (!a_ctx(tfm)->dev) { pr_err("chcr : %s : No crypto device.\n", __func__); @@ -3600,8 +3595,9 @@ static int chcr_aead_op(struct aead_request *req, u_ctx = ULD_CTX(a_ctx(tfm)); if (cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0], a_ctx(tfm)->tx_qidx)) { + isfull = 1; if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) - return -EBUSY; + return -ENOSPC; } /* Form a WR from req */ @@ -3614,7 +3610,7 @@ static int chcr_aead_op(struct aead_request *req, skb->dev = u_ctx->lldi.ports[0]; set_wr_txq(skb, CPL_PRIORITY_DATA, a_ctx(tfm)->tx_qidx); chcr_send_wr(skb); - return -EINPROGRESS; + return isfull ? -EBUSY : -EINPROGRESS; } static int chcr_aead_encrypt(struct aead_request *req) -- 2.11.0