From patchwork Wed Feb 5 05:18:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ayush Sawal X-Patchwork-Id: 11365781 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9D6B4138D for ; Wed, 5 Feb 2020 05:19:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 86227217F4 for ; Wed, 5 Feb 2020 05:19:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725906AbgBEFT3 (ORCPT ); Wed, 5 Feb 2020 00:19:29 -0500 Received: from stargate.chelsio.com ([12.32.117.8]:40162 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725385AbgBEFT3 (ORCPT ); Wed, 5 Feb 2020 00:19:29 -0500 Received: from chumthang.blr.asicdesigners.com (chumthang.blr.asicdesigners.com [10.193.186.96]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id 0155J7iS019895; Tue, 4 Feb 2020 21:19:23 -0800 From: Ayush Sawal To: herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org Cc: manojmalviya@chelsio.com, Ayush Sawal Subject: [PATCH crypto/chcr 1/2] This fixes the libkcapi's cbc(aes) aio fail test cases Date: Wed, 5 Feb 2020 10:48:41 +0530 Message-Id: <20200205051842.29324-2-ayush.sawal@chelsio.com> X-Mailer: git-send-email 2.25.0.114.g5b0ca87 In-Reply-To: <20200205051842.29324-1-ayush.sawal@chelsio.com> References: <20200205051842.29324-1-ayush.sawal@chelsio.com> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The libkcapi "cbc(aes)" failed tests are symmetric asynchronous cipher one shot multiple test, symmetric asynchronous cipher stream multiple test, Symmetric asynchronous cipher vmsplice multiple test In this patch a wait_for_completion is added in the chcr_aes_encrypt function, which completes when the response of comes from the hardware. This adds serialization for encryption in cbc(aes) aio case. Signed-off-by: Ayush Sawal --- drivers/crypto/chelsio/chcr_algo.c | 20 +++++++++++++++++++- drivers/crypto/chelsio/chcr_crypto.h | 1 + 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index b4b9b22125d1..699e3053895a 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -1102,6 +1102,7 @@ static int chcr_handle_cipher_resp(struct skcipher_request *req, unsigned char *input, int err) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct chcr_context *ctx = c_ctx(tfm); struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm)); struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm)); struct sk_buff *skb; @@ -1166,10 +1167,20 @@ static int chcr_handle_cipher_resp(struct skcipher_request *req, chcr_send_wr(skb); reqctx->last_req_len = bytes; reqctx->processed += bytes; + if (get_cryptoalg_subtype(tfm) == + CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags == + CRYPTO_TFM_REQ_MAY_SLEEP ) { + complete(&ctx->cbc_aes_aio_done); + } return 0; unmap: chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req); complete: + if (get_cryptoalg_subtype(tfm) == + CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags == + CRYPTO_TFM_REQ_MAY_SLEEP ) { + complete(&ctx->cbc_aes_aio_done); + } chcr_dec_wrcount(dev); req->base.complete(&req->base, err); return err; @@ -1289,6 +1300,7 @@ static int process_cipher(struct skcipher_request *req, static int chcr_aes_encrypt(struct skcipher_request *req) { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct chcr_context *ctx; struct chcr_dev *dev = c_ctx(tfm)->dev; struct sk_buff *skb = NULL; int err, isfull = 0; @@ -1313,6 +1325,12 @@ static int chcr_aes_encrypt(struct skcipher_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); + if (get_cryptoalg_subtype(tfm) == + CRYPTO_ALG_SUB_TYPE_CBC && req->base.flags == + CRYPTO_TFM_REQ_MAY_SLEEP ) { + ctx=c_ctx(tfm); + wait_for_completion(&ctx->cbc_aes_aio_done); + } return isfull ? -EBUSY : -EINPROGRESS; error: chcr_dec_wrcount(dev); @@ -1401,7 +1419,7 @@ static int chcr_init_tfm(struct crypto_skcipher *tfm) pr_err("failed to allocate fallback for %s\n", alg->base.cra_name); return PTR_ERR(ablkctx->sw_cipher); } - + init_completion(&ctx->cbc_aes_aio_done); crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx)); return chcr_device_init(ctx); diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h index 6db2df8c8a05..9207d88c5538 100644 --- a/drivers/crypto/chelsio/chcr_crypto.h +++ b/drivers/crypto/chelsio/chcr_crypto.h @@ -254,6 +254,7 @@ struct chcr_context { unsigned char rx_qidx; unsigned char tx_chan_id; unsigned char pci_chan_id; + struct completion cbc_aes_aio_done; struct __crypto_ctx crypto_ctx[0]; }; From patchwork Wed Feb 5 05:18:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ayush Sawal X-Patchwork-Id: 11365783 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3781E138D for ; Wed, 5 Feb 2020 05:19:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 20097217BA for ; Wed, 5 Feb 2020 05:19:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725913AbgBEFTk (ORCPT ); Wed, 5 Feb 2020 00:19:40 -0500 Received: from stargate.chelsio.com ([12.32.117.8]:19113 "EHLO stargate.chelsio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725385AbgBEFTk (ORCPT ); Wed, 5 Feb 2020 00:19:40 -0500 Received: from chumthang.blr.asicdesigners.com (chumthang.blr.asicdesigners.com [10.193.186.96]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id 0155J7iT019895; Tue, 4 Feb 2020 21:19:34 -0800 From: Ayush Sawal To: herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org Cc: manojmalviya@chelsio.com, Ayush Sawal Subject: [PATCH crypto/chcr 2/2] This fixes the kernel panic which occurs during a libkcapi test Date: Wed, 5 Feb 2020 10:48:42 +0530 Message-Id: <20200205051842.29324-3-ayush.sawal@chelsio.com> X-Mailer: git-send-email 2.25.0.114.g5b0ca87 In-Reply-To: <20200205051842.29324-1-ayush.sawal@chelsio.com> References: <20200205051842.29324-1-ayush.sawal@chelsio.com> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The libkcapi test which causes kernel panic is aead asynchronous vmsplice multiple test. ./bin/kcapi -v -d 4 -x 10 -c "ccm(aes)" -q 4edb58e8d5eb6bc711c43a6f3693daebde2e5524f1b55297abb29f003236e43d -t a7877c99 -n 674742abd0f5ba -k 2861fd0253705d7875c95ba8a53171b4 -a fb7bc304a3909e66e2e0c5ef952712dd884ce3e7324171369f2c5db1adc48c7d This patch avoids dma_mapping of a zero length sg which causes the panic, by using sg_nents_for_len which maps only upto a specific length Signed-off-by: Ayush Sawal --- drivers/crypto/chelsio/chcr_algo.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c index 699e3053895a..02b0ddb785a4 100644 --- a/drivers/crypto/chelsio/chcr_algo.c +++ b/drivers/crypto/chelsio/chcr_algo.c @@ -2489,8 +2489,9 @@ int chcr_aead_dma_map(struct device *dev, else reqctx->b0_dma = 0; if (req->src == req->dst) { - error = dma_map_sg(dev, req->src, sg_nents(req->src), - DMA_BIDIRECTIONAL); + error = dma_map_sg(dev, req->src, + sg_nents_for_len(req->src, dst_size), + DMA_BIDIRECTIONAL); if (!error) goto err; } else {