From patchwork Fri May 6 14:38:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841262 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 453F6C4332F for ; Fri, 6 May 2022 14:39:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442287AbiEFOmy (ORCPT ); Fri, 6 May 2022 10:42:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442288AbiEFOmx (ORCPT ); Fri, 6 May 2022 10:42:53 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B59C6A427; Fri, 6 May 2022 07:39:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651847949; x=1683383949; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PHirnwRewAXRkYbi7irfJOicze95UPl0UU4GfkNeB54=; b=YDWs6jIi7eaJ0QYAgR8CVH0DHRcqvM7avwYSnC7sXPW9dIT5m/31Y8Z4 M6H/MwhiEGfI+ynlnSrQDj9XQlpbzkeImLRhJrV3PoeEIVk3hN4P328yV wqsf9skPp7X4pBIdMVQZeAqBvY5evZJljugyuIsR+wl87Jlya7wxNGol+ voyUDyfRtN6cxLJnJdqaiUkJI6/PqttN1AtLwzo8TvN5dLbsmxbU4dSgw DvkeSV2g9uASGfRDlf88E2Q2hiWMmHW7mYkUDGhYPZl1C2SokGLdVOiz+ uFO0JLIBNNH0cs28kMKxJUmWjoKvPO+cwysHcLppaC2tT3lhMe7iE19vc w==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387454" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387454" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914799" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:06 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Mikulas Patocka , Marco Chiappero , Wojciech Ziemba Subject: [PATCH v2 01/11] crypto: qat - use pre-allocated buffers in datapath Date: Fri, 6 May 2022 15:38:53 +0100 Message-Id: <20220506143903.31776-2-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org In order to do DMAs, the QAT device requires that the scatterlist structures are mapped and translated into a format that the firmware can understand. This is defined as the composition of a scatter gather list (SGL) descriptor header, the struct qat_alg_buf_list, plus a variable number of flat buffer descriptors, the struct qat_alg_buf. The allocation and mapping of these data structures is done each time a request is received from the skcipher and aead APIs. In an OOM situation, this behaviour might lead to a dead-lock if an allocation fails. Based on the conversation in [1], increase the size of the aead and skcipher request contexts to include an SGL descriptor that can handle a maximum of 4 flat buffers. If requests exceed 4 entries buffers, memory is allocated dynamically. [1] https://lore.kernel.org/linux-crypto/20200722072932.GA27544@gondor.apana.org.au/ Cc: stable@vger.kernel.org Fixes: d370cec32194 ("crypto: qat - Intel(R) QAT crypto interface") Reported-by: Mikulas Patocka Signed-off-by: Giovanni Cabiddu Reviewed-by: Marco Chiappero Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_algs.c | 64 +++++++++++++--------- drivers/crypto/qat/qat_common/qat_crypto.h | 24 ++++++++ 2 files changed, 61 insertions(+), 27 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index f998ed58457c..ec635fe44c1f 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -46,19 +46,6 @@ static DEFINE_MUTEX(algs_lock); static unsigned int active_devs; -struct qat_alg_buf { - u32 len; - u32 resrvd; - u64 addr; -} __packed; - -struct qat_alg_buf_list { - u64 resrvd; - u32 num_bufs; - u32 num_mapped_bufs; - struct qat_alg_buf bufers[]; -} __packed __aligned(64); - /* Common content descriptor */ struct qat_alg_cd { union { @@ -693,7 +680,10 @@ static void qat_alg_free_bufl(struct qat_crypto_instance *inst, bl->bufers[i].len, DMA_BIDIRECTIONAL); dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE); - kfree(bl); + + if (!qat_req->buf.sgl_src_valid) + kfree(bl); + if (blp != blpout) { /* If out of place operation dma unmap only data */ int bufless = blout->num_bufs - blout->num_mapped_bufs; @@ -704,7 +694,9 @@ static void qat_alg_free_bufl(struct qat_crypto_instance *inst, DMA_BIDIRECTIONAL); } dma_unmap_single(dev, blpout, sz_out, DMA_TO_DEVICE); - kfree(blout); + + if (!qat_req->buf.sgl_dst_valid) + kfree(blout); } } @@ -721,15 +713,24 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, dma_addr_t blp = DMA_MAPPING_ERROR; dma_addr_t bloutp = DMA_MAPPING_ERROR; struct scatterlist *sg; - size_t sz_out, sz = struct_size(bufl, bufers, n + 1); + size_t sz_out, sz = struct_size(bufl, bufers, n); + int node = dev_to_node(&GET_DEV(inst->accel_dev)); if (unlikely(!n)) return -EINVAL; - bufl = kzalloc_node(sz, GFP_ATOMIC, - dev_to_node(&GET_DEV(inst->accel_dev))); - if (unlikely(!bufl)) - return -ENOMEM; + qat_req->buf.sgl_src_valid = false; + qat_req->buf.sgl_dst_valid = false; + + if (n > QAT_MAX_BUFF_DESC) { + bufl = kzalloc_node(sz, GFP_ATOMIC, node); + if (unlikely(!bufl)) + return -ENOMEM; + } else { + bufl = &qat_req->buf.sgl_src.sgl_hdr; + memset(bufl, 0, sizeof(struct qat_alg_buf_list)); + qat_req->buf.sgl_src_valid = true; + } for_each_sg(sgl, sg, n, i) bufl->bufers[i].addr = DMA_MAPPING_ERROR; @@ -760,12 +761,18 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, struct qat_alg_buf *bufers; n = sg_nents(sglout); - sz_out = struct_size(buflout, bufers, n + 1); + sz_out = struct_size(buflout, bufers, n); sg_nctr = 0; - buflout = kzalloc_node(sz_out, GFP_ATOMIC, - dev_to_node(&GET_DEV(inst->accel_dev))); - if (unlikely(!buflout)) - goto err_in; + + if (n > QAT_MAX_BUFF_DESC) { + buflout = kzalloc_node(sz_out, GFP_ATOMIC, node); + if (unlikely(!buflout)) + goto err_in; + } else { + buflout = &qat_req->buf.sgl_dst.sgl_hdr; + memset(buflout, 0, sizeof(struct qat_alg_buf_list)); + qat_req->buf.sgl_dst_valid = true; + } bufers = buflout->bufers; for_each_sg(sglout, sg, n, i) @@ -810,7 +817,9 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, dma_unmap_single(dev, buflout->bufers[i].addr, buflout->bufers[i].len, DMA_BIDIRECTIONAL); - kfree(buflout); + + if (!qat_req->buf.sgl_dst_valid) + kfree(buflout); err_in: if (!dma_mapping_error(dev, blp)) @@ -823,7 +832,8 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, bufl->bufers[i].len, DMA_BIDIRECTIONAL); - kfree(bufl); + if (!qat_req->buf.sgl_src_valid) + kfree(bufl); dev_err(dev, "Failed to map buf for dma\n"); return -ENOMEM; diff --git a/drivers/crypto/qat/qat_common/qat_crypto.h b/drivers/crypto/qat/qat_common/qat_crypto.h index b6a4c95ae003..0928f159ea99 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.h +++ b/drivers/crypto/qat/qat_common/qat_crypto.h @@ -21,6 +21,26 @@ struct qat_crypto_instance { atomic_t refctr; }; +#define QAT_MAX_BUFF_DESC 4 + +struct qat_alg_buf { + u32 len; + u32 resrvd; + u64 addr; +} __packed; + +struct qat_alg_buf_list { + u64 resrvd; + u32 num_bufs; + u32 num_mapped_bufs; + struct qat_alg_buf bufers[]; +} __packed; + +struct qat_alg_fixed_buf_list { + struct qat_alg_buf_list sgl_hdr; + struct qat_alg_buf descriptors[QAT_MAX_BUFF_DESC]; +} __packed __aligned(64); + struct qat_crypto_request_buffs { struct qat_alg_buf_list *bl; dma_addr_t blp; @@ -28,6 +48,10 @@ struct qat_crypto_request_buffs { dma_addr_t bloutp; size_t sz; size_t sz_out; + bool sgl_src_valid; + bool sgl_dst_valid; + struct qat_alg_fixed_buf_list sgl_src; + struct qat_alg_fixed_buf_list sgl_dst; }; struct qat_crypto_request; From patchwork Fri May 6 14:38:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841263 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECDF7C433EF for ; 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X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387459" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387459" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914804" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:09 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Marco Chiappero Subject: [PATCH v2 02/11] crypto: qat - refactor submission logic Date: Fri, 6 May 2022 15:38:54 +0100 Message-Id: <20220506143903.31776-3-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org All the algorithms in qat_algs.c and qat_asym_algs.c use the same pattern to submit messages to the HW queues. Move the submission loop to a new function, qat_alg_send_message(), and share it between the symmetric and the asymmetric algorithms. As part of this rework, since the number of retries before returning an error is inconsistent between the symmetric and asymmetric implementations, set it to a value that works for both (i.e. 20, was 10 in qat_algs.c and 100 in qat_asym_algs.c) In addition fix the return code reported when the HW queues are full. In that case return -ENOSPC instead of -EBUSY. Including stable in CC since (1) the error code returned if the HW queues are full is incorrect and (2) to facilitate the backport of the next fix "crypto: qat - add backlog mechanism". Cc: stable@vger.kernel.org Signed-off-by: Giovanni Cabiddu Reviewed-by: Marco Chiappero --- drivers/crypto/qat/qat_common/Makefile | 1 + drivers/crypto/qat/qat_common/qat_algs.c | 68 +++++++++---------- drivers/crypto/qat/qat_common/qat_algs_send.c | 21 ++++++ drivers/crypto/qat/qat_common/qat_algs_send.h | 10 +++ drivers/crypto/qat/qat_common/qat_asym_algs.c | 50 +++++++++----- drivers/crypto/qat/qat_common/qat_crypto.h | 5 ++ 6 files changed, 101 insertions(+), 54 deletions(-) create mode 100644 drivers/crypto/qat/qat_common/qat_algs_send.c create mode 100644 drivers/crypto/qat/qat_common/qat_algs_send.h diff --git a/drivers/crypto/qat/qat_common/Makefile b/drivers/crypto/qat/qat_common/Makefile index f25a6c8edfc7..04f058acc4d3 100644 --- a/drivers/crypto/qat/qat_common/Makefile +++ b/drivers/crypto/qat/qat_common/Makefile @@ -16,6 +16,7 @@ intel_qat-objs := adf_cfg.o \ qat_crypto.o \ qat_algs.o \ qat_asym_algs.o \ + qat_algs_send.o \ qat_uclo.o \ qat_hal.o diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index ec635fe44c1f..6017ae82c713 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -17,7 +17,7 @@ #include #include #include "adf_accel_devices.h" -#include "adf_transport.h" +#include "qat_algs_send.h" #include "adf_common_drv.h" #include "qat_crypto.h" #include "icp_qat_hw.h" @@ -939,6 +939,17 @@ void qat_alg_callback(void *resp) qat_req->cb(qat_resp, qat_req); } +static int qat_alg_send_sym_message(struct qat_crypto_request *qat_req, + struct qat_crypto_instance *inst) +{ + struct qat_alg_req req; + + req.fw_req = (u32 *)&qat_req->req; + req.tx_ring = inst->sym_tx; + + return qat_alg_send_message(&req); +} + static int qat_alg_aead_dec(struct aead_request *areq) { struct crypto_aead *aead_tfm = crypto_aead_reqtfm(areq); @@ -949,7 +960,7 @@ static int qat_alg_aead_dec(struct aead_request *areq) struct icp_qat_fw_la_auth_req_params *auth_param; struct icp_qat_fw_la_bulk_req *msg; int digst_size = crypto_aead_authsize(aead_tfm); - int ret, ctr = 0; + int ret; u32 cipher_len; cipher_len = areq->cryptlen - digst_size; @@ -975,15 +986,12 @@ static int qat_alg_aead_dec(struct aead_request *areq) auth_param = (void *)((u8 *)cipher_param + sizeof(*cipher_param)); auth_param->auth_off = 0; auth_param->auth_len = areq->assoclen + cipher_param->cipher_length; - do { - ret = adf_send_message(ctx->inst->sym_tx, (u32 *)msg); - } while (ret == -EAGAIN && ctr++ < 10); - if (ret == -EAGAIN) { + ret = qat_alg_send_sym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); - return -EBUSY; - } - return -EINPROGRESS; + + return ret; } static int qat_alg_aead_enc(struct aead_request *areq) @@ -996,7 +1004,7 @@ static int qat_alg_aead_enc(struct aead_request *areq) struct icp_qat_fw_la_auth_req_params *auth_param; struct icp_qat_fw_la_bulk_req *msg; u8 *iv = areq->iv; - int ret, ctr = 0; + int ret; if (areq->cryptlen % AES_BLOCK_SIZE != 0) return -EINVAL; @@ -1023,15 +1031,11 @@ static int qat_alg_aead_enc(struct aead_request *areq) auth_param->auth_off = 0; auth_param->auth_len = areq->assoclen + areq->cryptlen; - do { - ret = adf_send_message(ctx->inst->sym_tx, (u32 *)msg); - } while (ret == -EAGAIN && ctr++ < 10); - - if (ret == -EAGAIN) { + ret = qat_alg_send_sym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); - return -EBUSY; - } - return -EINPROGRESS; + + return ret; } static int qat_alg_skcipher_rekey(struct qat_alg_skcipher_ctx *ctx, @@ -1184,7 +1188,7 @@ static int qat_alg_skcipher_encrypt(struct skcipher_request *req) struct qat_crypto_request *qat_req = skcipher_request_ctx(req); struct icp_qat_fw_la_cipher_req_params *cipher_param; struct icp_qat_fw_la_bulk_req *msg; - int ret, ctr = 0; + int ret; if (req->cryptlen == 0) return 0; @@ -1208,15 +1212,11 @@ static int qat_alg_skcipher_encrypt(struct skcipher_request *req) qat_alg_set_req_iv(qat_req); - do { - ret = adf_send_message(ctx->inst->sym_tx, (u32 *)msg); - } while (ret == -EAGAIN && ctr++ < 10); - - if (ret == -EAGAIN) { + ret = qat_alg_send_sym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); - return -EBUSY; - } - return -EINPROGRESS; + + return ret; } static int qat_alg_skcipher_blk_encrypt(struct skcipher_request *req) @@ -1253,7 +1253,7 @@ static int qat_alg_skcipher_decrypt(struct skcipher_request *req) struct qat_crypto_request *qat_req = skcipher_request_ctx(req); struct icp_qat_fw_la_cipher_req_params *cipher_param; struct icp_qat_fw_la_bulk_req *msg; - int ret, ctr = 0; + int ret; if (req->cryptlen == 0) return 0; @@ -1278,15 +1278,11 @@ static int qat_alg_skcipher_decrypt(struct skcipher_request *req) qat_alg_set_req_iv(qat_req); qat_alg_update_iv(qat_req); - do { - ret = adf_send_message(ctx->inst->sym_tx, (u32 *)msg); - } while (ret == -EAGAIN && ctr++ < 10); - - if (ret == -EAGAIN) { + ret = qat_alg_send_sym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); - return -EBUSY; - } - return -EINPROGRESS; + + return ret; } static int qat_alg_skcipher_blk_decrypt(struct skcipher_request *req) diff --git a/drivers/crypto/qat/qat_common/qat_algs_send.c b/drivers/crypto/qat/qat_common/qat_algs_send.c new file mode 100644 index 000000000000..78f1bb8c26c0 --- /dev/null +++ b/drivers/crypto/qat/qat_common/qat_algs_send.c @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) +/* Copyright(c) 2022 Intel Corporation */ +#include "adf_transport.h" +#include "qat_algs_send.h" +#include "qat_crypto.h" + +#define ADF_MAX_RETRIES 20 + +int qat_alg_send_message(struct qat_alg_req *req) +{ + int ret = 0, ctr = 0; + + do { + ret = adf_send_message(req->tx_ring, req->fw_req); + } while (ret == -EAGAIN && ctr++ < ADF_MAX_RETRIES); + + if (ret == -EAGAIN) + return -ENOSPC; + + return -EINPROGRESS; +} diff --git a/drivers/crypto/qat/qat_common/qat_algs_send.h b/drivers/crypto/qat/qat_common/qat_algs_send.h new file mode 100644 index 000000000000..3fa685d0c293 --- /dev/null +++ b/drivers/crypto/qat/qat_common/qat_algs_send.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */ +/* Copyright(c) 2022 Intel Corporation */ +#ifndef QAT_ALGS_SEND_H +#define QAT_ALGS_SEND_H + +#include "qat_crypto.h" + +int qat_alg_send_message(struct qat_alg_req *req); + +#endif diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index b0b78445418b..a3fdbcc08772 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -12,6 +12,7 @@ #include #include "icp_qat_fw_pke.h" #include "adf_accel_devices.h" +#include "qat_algs_send.h" #include "adf_transport.h" #include "adf_common_drv.h" #include "qat_crypto.h" @@ -137,6 +138,17 @@ struct qat_asym_request { void (*cb)(struct icp_qat_fw_pke_resp *resp); } __aligned(64); +static int qat_alg_send_asym_message(struct qat_asym_request *qat_req, + struct qat_crypto_instance *inst) +{ + struct qat_alg_req req; + + req.fw_req = (u32 *)&qat_req->req; + req.tx_ring = inst->pke_tx; + + return qat_alg_send_message(&req); +} + static void qat_dh_cb(struct icp_qat_fw_pke_resp *resp) { struct qat_asym_request *req = (void *)(__force long)resp->opaque; @@ -213,7 +225,7 @@ static int qat_dh_compute_value(struct kpp_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(kpp_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; - int ret, ctr = 0; + int ret; int n_input_params = 0; if (unlikely(!ctx->xa)) @@ -338,13 +350,13 @@ static int qat_dh_compute_value(struct kpp_request *req) msg->input_param_count = n_input_params; msg->output_param_count = 1; - do { - ret = adf_send_message(ctx->inst->pke_tx, (u32 *)msg); - } while (ret == -EBUSY && ctr++ < 100); + ret = qat_alg_send_asym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) + goto unmap_all; - if (!ret) - return -EINPROGRESS; + return ret; +unmap_all: if (!dma_mapping_error(dev, qat_req->phy_out)) dma_unmap_single(dev, qat_req->phy_out, sizeof(struct qat_dh_output_params), @@ -642,7 +654,7 @@ static int qat_rsa_enc(struct akcipher_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(akcipher_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; - int ret, ctr = 0; + int ret; if (unlikely(!ctx->n || !ctx->e)) return -EINVAL; @@ -732,13 +744,14 @@ static int qat_rsa_enc(struct akcipher_request *req) msg->pke_mid.opaque = (u64)(__force long)qat_req; msg->input_param_count = 3; msg->output_param_count = 1; - do { - ret = adf_send_message(ctx->inst->pke_tx, (u32 *)msg); - } while (ret == -EBUSY && ctr++ < 100); - if (!ret) - return -EINPROGRESS; + ret = qat_alg_send_asym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) + goto unmap_all; + + return ret; +unmap_all: if (!dma_mapping_error(dev, qat_req->phy_out)) dma_unmap_single(dev, qat_req->phy_out, sizeof(struct qat_rsa_output_params), @@ -776,7 +789,7 @@ static int qat_rsa_dec(struct akcipher_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(akcipher_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; - int ret, ctr = 0; + int ret; if (unlikely(!ctx->n || !ctx->d)) return -EINVAL; @@ -884,13 +897,14 @@ static int qat_rsa_dec(struct akcipher_request *req) msg->input_param_count = 3; msg->output_param_count = 1; - do { - ret = adf_send_message(ctx->inst->pke_tx, (u32 *)msg); - } while (ret == -EBUSY && ctr++ < 100); - if (!ret) - return -EINPROGRESS; + ret = qat_alg_send_asym_message(qat_req, ctx->inst); + if (ret == -ENOSPC) + goto unmap_all; + + return ret; +unmap_all: if (!dma_mapping_error(dev, qat_req->phy_out)) dma_unmap_single(dev, qat_req->phy_out, sizeof(struct qat_rsa_output_params), diff --git a/drivers/crypto/qat/qat_common/qat_crypto.h b/drivers/crypto/qat/qat_common/qat_crypto.h index 0928f159ea99..0dcba6fc358c 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.h +++ b/drivers/crypto/qat/qat_common/qat_crypto.h @@ -9,6 +9,11 @@ #include "adf_accel_devices.h" #include "icp_qat_fw_la.h" +struct qat_alg_req { + u32 *fw_req; + struct adf_etr_ring_data *tx_ring; +}; + struct qat_crypto_instance { struct adf_etr_ring_data *sym_tx; struct adf_etr_ring_data *sym_rx; From patchwork Fri May 6 14:38:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841264 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91E13C433EF for ; Fri, 6 May 2022 14:39:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442285AbiEFOnE (ORCPT ); Fri, 6 May 2022 10:43:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442305AbiEFOm6 (ORCPT ); Fri, 6 May 2022 10:42:58 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3851F6A421; 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d="scan'208";a="537914816" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:11 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Mikulas Patocka , Kyle Sanderson , Marco Chiappero Subject: [PATCH v2 03/11] crypto: qat - add backlog mechanism Date: Fri, 6 May 2022 15:38:55 +0100 Message-Id: <20220506143903.31776-4-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The implementations of the crypto algorithms (aead, skcipher, etc) in the QAT driver do not properly support requests with the CRYPTO_TFM_REQ_MAY_BACKLOG flag set. If the HW queue is full, the driver returns -EBUSY but does not enqueue the request. This can result in applications like dm-crypt waiting indefinitely for the completion of a request that was never submitted to the hardware. Fix this by adding a software backlog queue: if the ring buffer is more than eighty percent full, then the request is enqueued to a backlog list and the error code -EBUSY is returned back to the caller. Requests in the backlog queue are resubmitted at a later time, in the context of the callback of a previously submitted request. The request for which -EBUSY is returned is then marked as -EINPROGRESS once submitted to the HW queues. The submission loop inside the function qat_alg_send_message() has been modified to decide which submission policy to use based on the request flags. If the request does not have the CRYPTO_TFM_REQ_MAY_BACKLOG set, the previous behaviour has been preserved. Based on a patch by Vishnu Das Ramachandran Cc: stable@vger.kernel.org Fixes: d370cec32194 ("crypto: qat - Intel(R) QAT crypto interface") Reported-by: Mikulas Patocka Reported-by: Kyle Sanderson Signed-off-by: Giovanni Cabiddu Reviewed-by: Marco Chiappero --- drivers/crypto/qat/qat_common/adf_transport.c | 11 +++ drivers/crypto/qat/qat_common/adf_transport.h | 1 + .../qat/qat_common/adf_transport_internal.h | 1 + drivers/crypto/qat/qat_common/qat_algs.c | 24 ++++--- drivers/crypto/qat/qat_common/qat_algs_send.c | 67 ++++++++++++++++++- drivers/crypto/qat/qat_common/qat_algs_send.h | 1 + drivers/crypto/qat/qat_common/qat_asym_algs.c | 23 ++++--- drivers/crypto/qat/qat_common/qat_crypto.c | 3 + drivers/crypto/qat/qat_common/qat_crypto.h | 10 +++ 9 files changed, 123 insertions(+), 18 deletions(-) diff --git a/drivers/crypto/qat/qat_common/adf_transport.c b/drivers/crypto/qat/qat_common/adf_transport.c index 8ba28409fb74..630d0483c4e0 100644 --- a/drivers/crypto/qat/qat_common/adf_transport.c +++ b/drivers/crypto/qat/qat_common/adf_transport.c @@ -8,6 +8,9 @@ #include "adf_cfg.h" #include "adf_common_drv.h" +#define ADF_MAX_RING_THRESHOLD 80 +#define ADF_PERCENT(tot, percent) (((tot) * (percent)) / 100) + static inline u32 adf_modulo(u32 data, u32 shift) { u32 div = data >> shift; @@ -77,6 +80,11 @@ static void adf_disable_ring_irq(struct adf_etr_bank_data *bank, u32 ring) bank->irq_mask); } +bool adf_ring_nearly_full(struct adf_etr_ring_data *ring) +{ + return atomic_read(ring->inflights) > ring->threshold; +} + int adf_send_message(struct adf_etr_ring_data *ring, u32 *msg) { struct adf_hw_csr_ops *csr_ops = GET_CSR_OPS(ring->bank->accel_dev); @@ -217,6 +225,7 @@ int adf_create_ring(struct adf_accel_dev *accel_dev, const char *section, struct adf_etr_bank_data *bank; struct adf_etr_ring_data *ring; char val[ADF_CFG_MAX_VAL_LEN_IN_BYTES]; + int max_inflights; u32 ring_num; int ret; @@ -263,6 +272,8 @@ int adf_create_ring(struct adf_accel_dev *accel_dev, const char *section, ring->ring_size = adf_verify_ring_size(msg_size, num_msgs); ring->head = 0; ring->tail = 0; + max_inflights = ADF_MAX_INFLIGHTS(ring->ring_size, ring->msg_size); + ring->threshold = ADF_PERCENT(max_inflights, ADF_MAX_RING_THRESHOLD); atomic_set(ring->inflights, 0); ret = adf_init_ring(ring); if (ret) diff --git a/drivers/crypto/qat/qat_common/adf_transport.h b/drivers/crypto/qat/qat_common/adf_transport.h index 2c95f1697c76..e6ef6f9b7691 100644 --- a/drivers/crypto/qat/qat_common/adf_transport.h +++ b/drivers/crypto/qat/qat_common/adf_transport.h @@ -14,6 +14,7 @@ int adf_create_ring(struct adf_accel_dev *accel_dev, const char *section, const char *ring_name, adf_callback_fn callback, int poll_mode, struct adf_etr_ring_data **ring_ptr); +bool adf_ring_nearly_full(struct adf_etr_ring_data *ring); int adf_send_message(struct adf_etr_ring_data *ring, u32 *msg); void adf_remove_ring(struct adf_etr_ring_data *ring); #endif diff --git a/drivers/crypto/qat/qat_common/adf_transport_internal.h b/drivers/crypto/qat/qat_common/adf_transport_internal.h index 501bcf0f1809..8b2c92ba7ca1 100644 --- a/drivers/crypto/qat/qat_common/adf_transport_internal.h +++ b/drivers/crypto/qat/qat_common/adf_transport_internal.h @@ -22,6 +22,7 @@ struct adf_etr_ring_data { spinlock_t lock; /* protects ring data struct */ u16 head; u16 tail; + u32 threshold; u8 ring_number; u8 ring_size; u8 msg_size; diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index 6017ae82c713..873533dc43a7 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -935,19 +935,25 @@ void qat_alg_callback(void *resp) struct icp_qat_fw_la_resp *qat_resp = resp; struct qat_crypto_request *qat_req = (void *)(__force long)qat_resp->opaque_data; + struct qat_instance_backlog *backlog = qat_req->alg_req.backlog; qat_req->cb(qat_resp, qat_req); + + qat_alg_send_backlog(backlog); } static int qat_alg_send_sym_message(struct qat_crypto_request *qat_req, - struct qat_crypto_instance *inst) + struct qat_crypto_instance *inst, + struct crypto_async_request *base) { - struct qat_alg_req req; + struct qat_alg_req *alg_req = &qat_req->alg_req; - req.fw_req = (u32 *)&qat_req->req; - req.tx_ring = inst->sym_tx; + alg_req->fw_req = (u32 *)&qat_req->req; + alg_req->tx_ring = inst->sym_tx; + alg_req->base = base; + alg_req->backlog = &inst->backlog; - return qat_alg_send_message(&req); + return qat_alg_send_message(alg_req); } static int qat_alg_aead_dec(struct aead_request *areq) @@ -987,7 +993,7 @@ static int qat_alg_aead_dec(struct aead_request *areq) auth_param->auth_off = 0; auth_param->auth_len = areq->assoclen + cipher_param->cipher_length; - ret = qat_alg_send_sym_message(qat_req, ctx->inst); + ret = qat_alg_send_sym_message(qat_req, ctx->inst, &areq->base); if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); @@ -1031,7 +1037,7 @@ static int qat_alg_aead_enc(struct aead_request *areq) auth_param->auth_off = 0; auth_param->auth_len = areq->assoclen + areq->cryptlen; - ret = qat_alg_send_sym_message(qat_req, ctx->inst); + ret = qat_alg_send_sym_message(qat_req, ctx->inst, &areq->base); if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); @@ -1212,7 +1218,7 @@ static int qat_alg_skcipher_encrypt(struct skcipher_request *req) qat_alg_set_req_iv(qat_req); - ret = qat_alg_send_sym_message(qat_req, ctx->inst); + ret = qat_alg_send_sym_message(qat_req, ctx->inst, &req->base); if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); @@ -1278,7 +1284,7 @@ static int qat_alg_skcipher_decrypt(struct skcipher_request *req) qat_alg_set_req_iv(qat_req); qat_alg_update_iv(qat_req); - ret = qat_alg_send_sym_message(qat_req, ctx->inst); + ret = qat_alg_send_sym_message(qat_req, ctx->inst, &req->base); if (ret == -ENOSPC) qat_alg_free_bufl(ctx->inst, qat_req); diff --git a/drivers/crypto/qat/qat_common/qat_algs_send.c b/drivers/crypto/qat/qat_common/qat_algs_send.c index 78f1bb8c26c0..ff5b4347f783 100644 --- a/drivers/crypto/qat/qat_common/qat_algs_send.c +++ b/drivers/crypto/qat/qat_common/qat_algs_send.c @@ -6,7 +6,7 @@ #define ADF_MAX_RETRIES 20 -int qat_alg_send_message(struct qat_alg_req *req) +static int qat_alg_send_message_retry(struct qat_alg_req *req) { int ret = 0, ctr = 0; @@ -19,3 +19,68 @@ int qat_alg_send_message(struct qat_alg_req *req) return -EINPROGRESS; } + +void qat_alg_send_backlog(struct qat_instance_backlog *backlog) +{ + struct qat_alg_req *req, *tmp; + + spin_lock_bh(&backlog->lock); + list_for_each_entry_safe(req, tmp, &backlog->list, list) { + if (adf_send_message(req->tx_ring, req->fw_req)) { + /* The HW ring is full. Do nothing. + * qat_alg_send_backlog() will be invoked again by + * another callback. + */ + break; + } + list_del(&req->list); + req->base->complete(req->base, -EINPROGRESS); + } + spin_unlock_bh(&backlog->lock); +} + +static void qat_alg_backlog_req(struct qat_alg_req *req, + struct qat_instance_backlog *backlog) +{ + INIT_LIST_HEAD(&req->list); + + spin_lock_bh(&backlog->lock); + list_add_tail(&req->list, &backlog->list); + spin_unlock_bh(&backlog->lock); +} + +static int qat_alg_send_message_maybacklog(struct qat_alg_req *req) +{ + struct qat_instance_backlog *backlog = req->backlog; + struct adf_etr_ring_data *tx_ring = req->tx_ring; + u32 *fw_req = req->fw_req; + + /* If any request is already backlogged, then add to backlog list */ + if (!list_empty(&backlog->list)) + goto enqueue; + + /* If ring is nearly full, then add to backlog list */ + if (adf_ring_nearly_full(tx_ring)) + goto enqueue; + + /* If adding request to HW ring fails, then add to backlog list */ + if (adf_send_message(tx_ring, fw_req)) + goto enqueue; + + return -EINPROGRESS; + +enqueue: + qat_alg_backlog_req(req, backlog); + + return -EBUSY; +} + +int qat_alg_send_message(struct qat_alg_req *req) +{ + u32 flags = req->base->flags; + + if (flags & CRYPTO_TFM_REQ_MAY_BACKLOG) + return qat_alg_send_message_maybacklog(req); + else + return qat_alg_send_message_retry(req); +} diff --git a/drivers/crypto/qat/qat_common/qat_algs_send.h b/drivers/crypto/qat/qat_common/qat_algs_send.h index 3fa685d0c293..5ce9f4f69d8f 100644 --- a/drivers/crypto/qat/qat_common/qat_algs_send.h +++ b/drivers/crypto/qat/qat_common/qat_algs_send.h @@ -6,5 +6,6 @@ #include "qat_crypto.h" int qat_alg_send_message(struct qat_alg_req *req); +void qat_alg_send_backlog(struct qat_instance_backlog *backlog); #endif diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index a3fdbcc08772..306219a4b00e 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -136,17 +136,21 @@ struct qat_asym_request { } areq; int err; void (*cb)(struct icp_qat_fw_pke_resp *resp); + struct qat_alg_req alg_req; } __aligned(64); static int qat_alg_send_asym_message(struct qat_asym_request *qat_req, - struct qat_crypto_instance *inst) + struct qat_crypto_instance *inst, + struct crypto_async_request *base) { - struct qat_alg_req req; + struct qat_alg_req *alg_req = &qat_req->alg_req; - req.fw_req = (u32 *)&qat_req->req; - req.tx_ring = inst->pke_tx; + alg_req->fw_req = (u32 *)&qat_req->req; + alg_req->tx_ring = inst->pke_tx; + alg_req->base = base; + alg_req->backlog = &inst->backlog; - return qat_alg_send_message(&req); + return qat_alg_send_message(alg_req); } static void qat_dh_cb(struct icp_qat_fw_pke_resp *resp) @@ -350,7 +354,7 @@ static int qat_dh_compute_value(struct kpp_request *req) msg->input_param_count = n_input_params; msg->output_param_count = 1; - ret = qat_alg_send_asym_message(qat_req, ctx->inst); + ret = qat_alg_send_asym_message(qat_req, inst, &req->base); if (ret == -ENOSPC) goto unmap_all; @@ -554,8 +558,11 @@ void qat_alg_asym_callback(void *_resp) { struct icp_qat_fw_pke_resp *resp = _resp; struct qat_asym_request *areq = (void *)(__force long)resp->opaque; + struct qat_instance_backlog *backlog = areq->alg_req.backlog; areq->cb(resp); + + qat_alg_send_backlog(backlog); } #define PKE_RSA_EP_512 0x1c161b21 @@ -745,7 +752,7 @@ static int qat_rsa_enc(struct akcipher_request *req) msg->input_param_count = 3; msg->output_param_count = 1; - ret = qat_alg_send_asym_message(qat_req, ctx->inst); + ret = qat_alg_send_asym_message(qat_req, inst, &req->base); if (ret == -ENOSPC) goto unmap_all; @@ -898,7 +905,7 @@ static int qat_rsa_dec(struct akcipher_request *req) msg->output_param_count = 1; - ret = qat_alg_send_asym_message(qat_req, ctx->inst); + ret = qat_alg_send_asym_message(qat_req, inst, &req->base); if (ret == -ENOSPC) goto unmap_all; diff --git a/drivers/crypto/qat/qat_common/qat_crypto.c b/drivers/crypto/qat/qat_common/qat_crypto.c index 67c9588e89df..80d905ed102e 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.c +++ b/drivers/crypto/qat/qat_common/qat_crypto.c @@ -353,6 +353,9 @@ static int qat_crypto_create_instances(struct adf_accel_dev *accel_dev) &inst->pke_rx); if (ret) goto err; + + INIT_LIST_HEAD(&inst->backlog.list); + spin_lock_init(&inst->backlog.lock); } return 0; err: diff --git a/drivers/crypto/qat/qat_common/qat_crypto.h b/drivers/crypto/qat/qat_common/qat_crypto.h index 0dcba6fc358c..245b6d9a3650 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.h +++ b/drivers/crypto/qat/qat_common/qat_crypto.h @@ -9,9 +9,17 @@ #include "adf_accel_devices.h" #include "icp_qat_fw_la.h" +struct qat_instance_backlog { + struct list_head list; + spinlock_t lock; /* protects backlog list */ +}; + struct qat_alg_req { u32 *fw_req; struct adf_etr_ring_data *tx_ring; + struct crypto_async_request *base; + struct list_head list; + struct qat_instance_backlog *backlog; }; struct qat_crypto_instance { @@ -24,6 +32,7 @@ struct qat_crypto_instance { unsigned long state; int id; atomic_t refctr; + struct qat_instance_backlog backlog; }; #define QAT_MAX_BUFF_DESC 4 @@ -82,6 +91,7 @@ struct qat_crypto_request { u8 iv[AES_BLOCK_SIZE]; }; bool encryption; + struct qat_alg_req alg_req; }; static inline bool adf_hw_dev_has_crypto(struct adf_accel_dev *accel_dev) From patchwork Fri May 6 14:38:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841265 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67401C4332F for ; Fri, 6 May 2022 14:39:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442290AbiEFOnF (ORCPT ); Fri, 6 May 2022 10:43:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442296AbiEFOm7 (ORCPT ); Fri, 6 May 2022 10:42:59 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C9046A42B; 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d="scan'208";a="537914825" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:13 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 04/11] crypto: qat - fix memory leak in RSA Date: Fri, 6 May 2022 15:38:56 +0100 Message-Id: <20220506143903.31776-5-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org When an RSA key represented in form 2 (as defined in PKCS #1 V2.1) is used, some components of the private key persist even after the TFM is released. Replace the explicit calls to free the buffers in qat_rsa_exit_tfm() with a call to qat_rsa_clear_ctx() which frees all buffers referenced in the TFM context. Cc: stable@vger.kernel.org Fixes: 879f77e9071f ("crypto: qat - Add RSA CRT mode") Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 306219a4b00e..9be972430f11 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -1254,18 +1254,8 @@ static void qat_rsa_exit_tfm(struct crypto_akcipher *tfm) struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm); struct device *dev = &GET_DEV(ctx->inst->accel_dev); - if (ctx->n) - dma_free_coherent(dev, ctx->key_sz, ctx->n, ctx->dma_n); - if (ctx->e) - dma_free_coherent(dev, ctx->key_sz, ctx->e, ctx->dma_e); - if (ctx->d) { - memset(ctx->d, '\0', ctx->key_sz); - dma_free_coherent(dev, ctx->key_sz, ctx->d, ctx->dma_d); - } + qat_rsa_clear_ctx(dev, ctx); qat_crypto_put_instance(ctx->inst); - ctx->n = NULL; - ctx->e = NULL; - ctx->d = NULL; } static struct akcipher_alg rsa = { From patchwork Fri May 6 14:38:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841266 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12976C433EF for ; Fri, 6 May 2022 14:39:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442288AbiEFOnP (ORCPT ); Fri, 6 May 2022 10:43:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35372 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442309AbiEFOnE (ORCPT ); Fri, 6 May 2022 10:43:04 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 934D66AA57; Fri, 6 May 2022 07:39:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651847958; x=1683383958; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mujSkUPHrLebgIK/zlCc2BUoPC4hMv/CGqODJfcr1Hg=; b=A8hwHZUpJ6guCPuqTVHEqwzXM9u+4G7U7Xbo/+BE0r12Xhx/5kbixa9I 13QxAqj4A0zHfZIQWyYtDg26/rmZj2pOX53fnwSfCM+eiFI0SNtAUOPSF PMlax7+sTNjNEYqoPUBfx3BStZ0smiJwHW3rGgwsPSeKyDg/F5tgAn7HA aez60NG/ZbNsQdhRguPUPlgGYMw+aO23URXC63xz+sorV+k08nvoYIecf ddVkJXIMIFO5fvA0aBlZV4I467DPU2tL6cI2QQsp8QmRbzw2OrJ8/ZOFq BGoIkzQyUKLQnMOZ+kjFDO0AY4t9IMyi6r9XybFuJFwjLLxxA7EHZSZTJ w==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387479" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387479" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914836" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:16 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 05/11] crypto: qat - remove dma_free_coherent() for RSA Date: Fri, 6 May 2022 15:38:57 +0100 Message-Id: <20220506143903.31776-6-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP"), if the algorithms are enabled, the driver crashes with a BUG_ON while executing vunmap() in the context of a tasklet. This is due to the fact that the function dma_free_coherent() cannot be called in an interrupt context (see Documentation/core-api/dma-api-howto.rst). The functions qat_rsa_enc() and qat_rsa_dec() allocate memory with dma_alloc_coherent() if the source or the destination buffers are made of multiple flat buffers or of a size that is not compatible with the hardware. This memory is then freed with dma_free_coherent() in the context of a tasklet invoked to handle the response for the corresponding request. Replace allocations with dma_alloc_coherent() in the functions qat_rsa_enc() and qat_rsa_dec() with kmalloc() + dma_map_single(). Cc: stable@vger.kernel.org Fixes: a990532023b9 ("crypto: qat - Add support for RSA algorithm") Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 137 ++++++++---------- 1 file changed, 60 insertions(+), 77 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 9be972430f11..bba4b4d99e94 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -526,25 +526,22 @@ static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp) err = (err == ICP_QAT_FW_COMN_STATUS_FLAG_OK) ? 0 : -EINVAL; - if (req->src_align) - dma_free_coherent(dev, req->ctx.rsa->key_sz, req->src_align, - req->in.rsa.enc.m); - else - dma_unmap_single(dev, req->in.rsa.enc.m, req->ctx.rsa->key_sz, - DMA_TO_DEVICE); + kfree_sensitive(req->src_align); + + dma_unmap_single(dev, req->in.rsa.enc.m, req->ctx.rsa->key_sz, + DMA_TO_DEVICE); areq->dst_len = req->ctx.rsa->key_sz; if (req->dst_align) { scatterwalk_map_and_copy(req->dst_align, areq->dst, 0, areq->dst_len, 1); - dma_free_coherent(dev, req->ctx.rsa->key_sz, req->dst_align, - req->out.rsa.enc.c); - } else { - dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz, - DMA_FROM_DEVICE); + kfree_sensitive(req->dst_align); } + dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz, + DMA_FROM_DEVICE); + dma_unmap_single(dev, req->phy_in, sizeof(struct qat_rsa_input_params), DMA_TO_DEVICE); dma_unmap_single(dev, req->phy_out, @@ -661,6 +658,7 @@ static int qat_rsa_enc(struct akcipher_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(akcipher_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; + u8 *vaddr; int ret; if (unlikely(!ctx->n || !ctx->e)) @@ -698,40 +696,39 @@ static int qat_rsa_enc(struct akcipher_request *req) */ if (sg_is_last(req->src) && req->src_len == ctx->key_sz) { qat_req->src_align = NULL; - qat_req->in.rsa.enc.m = dma_map_single(dev, sg_virt(req->src), - req->src_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, qat_req->in.rsa.enc.m))) - return ret; - + vaddr = sg_virt(req->src); } else { int shift = ctx->key_sz - req->src_len; - qat_req->src_align = dma_alloc_coherent(dev, ctx->key_sz, - &qat_req->in.rsa.enc.m, - GFP_KERNEL); + qat_req->src_align = kzalloc(ctx->key_sz, GFP_KERNEL); if (unlikely(!qat_req->src_align)) return ret; scatterwalk_map_and_copy(qat_req->src_align + shift, req->src, 0, req->src_len, 0); + vaddr = qat_req->src_align; } - if (sg_is_last(req->dst) && req->dst_len == ctx->key_sz) { - qat_req->dst_align = NULL; - qat_req->out.rsa.enc.c = dma_map_single(dev, sg_virt(req->dst), - req->dst_len, - DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(dev, qat_req->out.rsa.enc.c))) - goto unmap_src; + qat_req->in.rsa.enc.m = dma_map_single(dev, vaddr, ctx->key_sz, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, qat_req->in.rsa.enc.m))) + goto unmap_src; + if (sg_is_last(req->dst) && req->dst_len == ctx->key_sz) { + qat_req->dst_align = NULL; + vaddr = sg_virt(req->dst); } else { - qat_req->dst_align = dma_alloc_coherent(dev, ctx->key_sz, - &qat_req->out.rsa.enc.c, - GFP_KERNEL); + qat_req->dst_align = kzalloc(ctx->key_sz, GFP_KERNEL); if (unlikely(!qat_req->dst_align)) goto unmap_src; - + vaddr = qat_req->dst_align; } + + qat_req->out.rsa.enc.c = dma_map_single(dev, vaddr, ctx->key_sz, + DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(dev, qat_req->out.rsa.enc.c))) + goto unmap_dst; + qat_req->in.rsa.in_tab[3] = 0; qat_req->out.rsa.out_tab[1] = 0; qat_req->phy_in = dma_map_single(dev, &qat_req->in.rsa.enc.m, @@ -769,21 +766,15 @@ static int qat_rsa_enc(struct akcipher_request *req) sizeof(struct qat_rsa_input_params), DMA_TO_DEVICE); unmap_dst: - if (qat_req->dst_align) - dma_free_coherent(dev, ctx->key_sz, qat_req->dst_align, - qat_req->out.rsa.enc.c); - else - if (!dma_mapping_error(dev, qat_req->out.rsa.enc.c)) - dma_unmap_single(dev, qat_req->out.rsa.enc.c, - ctx->key_sz, DMA_FROM_DEVICE); + if (!dma_mapping_error(dev, qat_req->out.rsa.enc.c)) + dma_unmap_single(dev, qat_req->out.rsa.enc.c, + ctx->key_sz, DMA_FROM_DEVICE); + kfree_sensitive(qat_req->dst_align); unmap_src: - if (qat_req->src_align) - dma_free_coherent(dev, ctx->key_sz, qat_req->src_align, - qat_req->in.rsa.enc.m); - else - if (!dma_mapping_error(dev, qat_req->in.rsa.enc.m)) - dma_unmap_single(dev, qat_req->in.rsa.enc.m, - ctx->key_sz, DMA_TO_DEVICE); + if (!dma_mapping_error(dev, qat_req->in.rsa.enc.m)) + dma_unmap_single(dev, qat_req->in.rsa.enc.m, ctx->key_sz, + DMA_TO_DEVICE); + kfree_sensitive(qat_req->src_align); return ret; } @@ -796,6 +787,7 @@ static int qat_rsa_dec(struct akcipher_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(akcipher_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; + u8 *vaddr; int ret; if (unlikely(!ctx->n || !ctx->d)) @@ -843,40 +835,37 @@ static int qat_rsa_dec(struct akcipher_request *req) */ if (sg_is_last(req->src) && req->src_len == ctx->key_sz) { qat_req->src_align = NULL; - qat_req->in.rsa.dec.c = dma_map_single(dev, sg_virt(req->src), - req->dst_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, qat_req->in.rsa.dec.c))) - return ret; - + vaddr = sg_virt(req->src); } else { int shift = ctx->key_sz - req->src_len; - qat_req->src_align = dma_alloc_coherent(dev, ctx->key_sz, - &qat_req->in.rsa.dec.c, - GFP_KERNEL); + qat_req->src_align = kzalloc(ctx->key_sz, GFP_KERNEL); if (unlikely(!qat_req->src_align)) return ret; scatterwalk_map_and_copy(qat_req->src_align + shift, req->src, 0, req->src_len, 0); + vaddr = qat_req->src_align; } - if (sg_is_last(req->dst) && req->dst_len == ctx->key_sz) { - qat_req->dst_align = NULL; - qat_req->out.rsa.dec.m = dma_map_single(dev, sg_virt(req->dst), - req->dst_len, - DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(dev, qat_req->out.rsa.dec.m))) - goto unmap_src; + qat_req->in.rsa.dec.c = dma_map_single(dev, vaddr, ctx->key_sz, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, qat_req->in.rsa.dec.c))) + goto unmap_src; + if (sg_is_last(req->dst) && req->dst_len == ctx->key_sz) { + qat_req->dst_align = NULL; + vaddr = sg_virt(req->dst); } else { - qat_req->dst_align = dma_alloc_coherent(dev, ctx->key_sz, - &qat_req->out.rsa.dec.m, - GFP_KERNEL); + qat_req->dst_align = kzalloc(ctx->key_sz, GFP_KERNEL); if (unlikely(!qat_req->dst_align)) goto unmap_src; - + vaddr = qat_req->dst_align; } + qat_req->out.rsa.dec.m = dma_map_single(dev, vaddr, ctx->key_sz, + DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(dev, qat_req->out.rsa.dec.m))) + goto unmap_dst; if (ctx->crt_mode) qat_req->in.rsa.in_tab[6] = 0; @@ -922,21 +911,15 @@ static int qat_rsa_dec(struct akcipher_request *req) sizeof(struct qat_rsa_input_params), DMA_TO_DEVICE); unmap_dst: - if (qat_req->dst_align) - dma_free_coherent(dev, ctx->key_sz, qat_req->dst_align, - qat_req->out.rsa.dec.m); - else - if (!dma_mapping_error(dev, qat_req->out.rsa.dec.m)) - dma_unmap_single(dev, qat_req->out.rsa.dec.m, - ctx->key_sz, DMA_FROM_DEVICE); + if (!dma_mapping_error(dev, qat_req->out.rsa.dec.m)) + dma_unmap_single(dev, qat_req->out.rsa.dec.m, + ctx->key_sz, DMA_FROM_DEVICE); + kfree_sensitive(qat_req->dst_align); unmap_src: - if (qat_req->src_align) - dma_free_coherent(dev, ctx->key_sz, qat_req->src_align, - qat_req->in.rsa.dec.c); - else - if (!dma_mapping_error(dev, qat_req->in.rsa.dec.c)) - dma_unmap_single(dev, qat_req->in.rsa.dec.c, - ctx->key_sz, DMA_TO_DEVICE); + if (!dma_mapping_error(dev, qat_req->in.rsa.dec.c)) + dma_unmap_single(dev, qat_req->in.rsa.dec.c, ctx->key_sz, + DMA_TO_DEVICE); + kfree_sensitive(qat_req->src_align); return ret; } From patchwork Fri May 6 14:38:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841267 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0A3AC4332F for ; Fri, 6 May 2022 14:39:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442293AbiEFOnR (ORCPT ); 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X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387484" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387484" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914851" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:18 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 06/11] crypto: qat - remove dma_free_coherent() for DH Date: Fri, 6 May 2022 15:38:58 +0100 Message-Id: <20220506143903.31776-7-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org The functions qat_dh_compute_value() allocates memory with dma_alloc_coherent() if the source or the destination buffers are made of multiple flat buffers or of a size that is not compatible with the hardware. This memory is then freed with dma_free_coherent() in the context of a tasklet invoked to handle the response for the corresponding request. According to Documentation/core-api/dma-api-howto.rst, the function dma_free_coherent() cannot be called in an interrupt context. Replace allocations with dma_alloc_coherent() in the function qat_dh_compute_value() with kmalloc() + dma_map_single(). Cc: stable@vger.kernel.org Fixes: c9839143ebbf ("crypto: qat - Add DH support") Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 83 ++++++++----------- 1 file changed, 34 insertions(+), 49 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index bba4b4d99e94..d75eb77c9fb9 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -164,26 +164,21 @@ static void qat_dh_cb(struct icp_qat_fw_pke_resp *resp) err = (err == ICP_QAT_FW_COMN_STATUS_FLAG_OK) ? 0 : -EINVAL; if (areq->src) { - if (req->src_align) - dma_free_coherent(dev, req->ctx.dh->p_size, - req->src_align, req->in.dh.in.b); - else - dma_unmap_single(dev, req->in.dh.in.b, - req->ctx.dh->p_size, DMA_TO_DEVICE); + dma_unmap_single(dev, req->in.dh.in.b, req->ctx.dh->p_size, + DMA_TO_DEVICE); + kfree_sensitive(req->src_align); } areq->dst_len = req->ctx.dh->p_size; if (req->dst_align) { scatterwalk_map_and_copy(req->dst_align, areq->dst, 0, areq->dst_len, 1); - - dma_free_coherent(dev, req->ctx.dh->p_size, req->dst_align, - req->out.dh.r); - } else { - dma_unmap_single(dev, req->out.dh.r, req->ctx.dh->p_size, - DMA_FROM_DEVICE); + kfree_sensitive(req->dst_align); } + dma_unmap_single(dev, req->out.dh.r, req->ctx.dh->p_size, + DMA_FROM_DEVICE); + dma_unmap_single(dev, req->phy_in, sizeof(struct qat_dh_input_params), DMA_TO_DEVICE); dma_unmap_single(dev, req->phy_out, @@ -231,6 +226,7 @@ static int qat_dh_compute_value(struct kpp_request *req) struct icp_qat_fw_pke_request *msg = &qat_req->req; int ret; int n_input_params = 0; + u8 *vaddr; if (unlikely(!ctx->xa)) return -EINVAL; @@ -287,27 +283,24 @@ static int qat_dh_compute_value(struct kpp_request *req) */ if (sg_is_last(req->src) && req->src_len == ctx->p_size) { qat_req->src_align = NULL; - qat_req->in.dh.in.b = dma_map_single(dev, - sg_virt(req->src), - req->src_len, - DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, - qat_req->in.dh.in.b))) - return ret; - + vaddr = sg_virt(req->src); } else { int shift = ctx->p_size - req->src_len; - qat_req->src_align = dma_alloc_coherent(dev, - ctx->p_size, - &qat_req->in.dh.in.b, - GFP_KERNEL); + qat_req->src_align = kzalloc(ctx->p_size, GFP_KERNEL); if (unlikely(!qat_req->src_align)) return ret; scatterwalk_map_and_copy(qat_req->src_align + shift, req->src, 0, req->src_len, 0); + + vaddr = qat_req->src_align; } + + qat_req->in.dh.in.b = dma_map_single(dev, vaddr, ctx->p_size, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, qat_req->in.dh.in.b))) + goto unmap_src; } /* * dst can be of any size in valid range, but HW expects it to be the @@ -318,20 +311,18 @@ static int qat_dh_compute_value(struct kpp_request *req) */ if (sg_is_last(req->dst) && req->dst_len == ctx->p_size) { qat_req->dst_align = NULL; - qat_req->out.dh.r = dma_map_single(dev, sg_virt(req->dst), - req->dst_len, - DMA_FROM_DEVICE); - - if (unlikely(dma_mapping_error(dev, qat_req->out.dh.r))) - goto unmap_src; - + vaddr = sg_virt(req->dst); } else { - qat_req->dst_align = dma_alloc_coherent(dev, ctx->p_size, - &qat_req->out.dh.r, - GFP_KERNEL); + qat_req->dst_align = kzalloc(ctx->p_size, GFP_KERNEL); if (unlikely(!qat_req->dst_align)) goto unmap_src; + + vaddr = qat_req->dst_align; } + qat_req->out.dh.r = dma_map_single(dev, vaddr, ctx->p_size, + DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(dev, qat_req->out.dh.r))) + goto unmap_dst; qat_req->in.dh.in_tab[n_input_params] = 0; qat_req->out.dh.out_tab[1] = 0; @@ -371,23 +362,17 @@ static int qat_dh_compute_value(struct kpp_request *req) sizeof(struct qat_dh_input_params), DMA_TO_DEVICE); unmap_dst: - if (qat_req->dst_align) - dma_free_coherent(dev, ctx->p_size, qat_req->dst_align, - qat_req->out.dh.r); - else - if (!dma_mapping_error(dev, qat_req->out.dh.r)) - dma_unmap_single(dev, qat_req->out.dh.r, ctx->p_size, - DMA_FROM_DEVICE); + if (!dma_mapping_error(dev, qat_req->out.dh.r)) + dma_unmap_single(dev, qat_req->out.dh.r, ctx->p_size, + DMA_FROM_DEVICE); + kfree_sensitive(qat_req->dst_align); unmap_src: if (req->src) { - if (qat_req->src_align) - dma_free_coherent(dev, ctx->p_size, qat_req->src_align, - qat_req->in.dh.in.b); - else - if (!dma_mapping_error(dev, qat_req->in.dh.in.b)) - dma_unmap_single(dev, qat_req->in.dh.in.b, - ctx->p_size, - DMA_TO_DEVICE); + if (!dma_mapping_error(dev, qat_req->in.dh.in.b)) + dma_unmap_single(dev, qat_req->in.dh.in.b, + ctx->p_size, + DMA_TO_DEVICE); + kfree_sensitive(qat_req->src_align); } return ret; } From patchwork Fri May 6 14:38:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841269 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E31E7C43219 for ; Fri, 6 May 2022 14:39:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442299AbiEFOnf (ORCPT ); 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X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387489" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387489" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914859" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:20 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 07/11] crypto: qat - set to zero DH parameters before free Date: Fri, 6 May 2022 15:38:59 +0100 Message-Id: <20220506143903.31776-8-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Set to zero the DH context buffers containing the DH key before they are freed. This is to make sure keys are not leaked out by a subsequent memory allocation. Cc: stable@vger.kernel.org Fixes: c9839143ebbf ("crypto: qat - Add DH support") Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index d75eb77c9fb9..25bbd22085c3 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -421,14 +421,17 @@ static int qat_dh_set_params(struct qat_dh_ctx *ctx, struct dh *params) static void qat_dh_clear_ctx(struct device *dev, struct qat_dh_ctx *ctx) { if (ctx->g) { + memset(ctx->g, 0, ctx->p_size); dma_free_coherent(dev, ctx->p_size, ctx->g, ctx->dma_g); ctx->g = NULL; } if (ctx->xa) { + memset(ctx->xa, 0, ctx->p_size); dma_free_coherent(dev, ctx->p_size, ctx->xa, ctx->dma_xa); ctx->xa = NULL; } if (ctx->p) { + memset(ctx->p, 0, ctx->p_size); dma_free_coherent(dev, ctx->p_size, ctx->p, ctx->dma_p); ctx->p = NULL; } From patchwork Fri May 6 14:39:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841268 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4067C433FE for ; Fri, 6 May 2022 14:39:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356066AbiEFOng (ORCPT ); Fri, 6 May 2022 10:43:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35978 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442327AbiEFOnY (ORCPT ); Fri, 6 May 2022 10:43:24 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 396F96A431; Fri, 6 May 2022 07:39:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651847980; x=1683383980; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=zXMlILne4A4fwaUPs2f+4VEHygrt8sJ7UUlZwZIFyWs=; b=LG7EmlmYCWdoV2A70pIWw4S6FjdQqEPs95sC+8qkr5ZI5361rvej7k1y jn0PYKuA6fPpWcJl1+ooJiTiFwm8H9lJUJiEzIl/2xymyydOUuguixysb gKR4lKSSdSH8C+S2Y0LlW21KTDI6HmqPXgzZ08jLU2itj9pwp+4YUXJ6k 1FCyxc8CJBcYHsozP7AgWGhnxv2JiiP/9PEvr+H7zL3coVBRS4RezDtQv VdGPvX32H88qNErUPlPfji73gq47l7/MynPf1HsNZmgUi8cthwbXAUWJ6 fcy7qIlMBRvRK9qIK2RmbUCaze36Oe7x8vvy07Szj6R+ZiFEiRnVy8IyN Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387495" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387495" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914875" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:22 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 08/11] crypto: qat - add param check for RSA Date: Fri, 6 May 2022 15:39:00 +0100 Message-Id: <20220506143903.31776-9-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Reject requests with a source buffer that is bigger than the size of the key. This is to prevent a possible integer underflow that might happen when copying the source scatterlist into a linear buffer. Cc: stable@vger.kernel.org Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 25bbd22085c3..947eeff181b4 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -656,6 +656,10 @@ static int qat_rsa_enc(struct akcipher_request *req) req->dst_len = ctx->key_sz; return -EOVERFLOW; } + + if (req->src_len > ctx->key_sz) + return -EINVAL; + memset(msg, '\0', sizeof(*msg)); ICP_QAT_FW_PKE_HDR_VALID_FLAG_SET(msg->pke_hdr, ICP_QAT_FW_COMN_REQ_FLAG_SET); @@ -785,6 +789,10 @@ static int qat_rsa_dec(struct akcipher_request *req) req->dst_len = ctx->key_sz; return -EOVERFLOW; } + + if (req->src_len > ctx->key_sz) + return -EINVAL; + memset(msg, '\0', sizeof(*msg)); ICP_QAT_FW_PKE_HDR_VALID_FLAG_SET(msg->pke_hdr, ICP_QAT_FW_COMN_REQ_FLAG_SET); From patchwork Fri May 6 14:39:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841271 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B3FE4C41535 for ; Fri, 6 May 2022 14:39:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442325AbiEFOnh (ORCPT ); Fri, 6 May 2022 10:43:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442330AbiEFOnY (ORCPT ); Fri, 6 May 2022 10:43:24 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5BF106AA6A; Fri, 6 May 2022 07:39:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651847981; x=1683383981; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=aC5KEN8QilAdacBpV4C3PKOAnFQSXsFdFkr96IIN3b0=; b=HCqvIidS3meWSv57JZp+tpPG+qGa8Z2V+2SuUcJtuc1KM9nC/GdgyaEQ im7vfRM+OoQa06X3A1SMFVV6CGal4cnkLGJeVoPwfLQTRUnyjNnHfdjKY xoZvKr/Wd7WMvFaNKHbjVSZ5++Lp0TpS/8k0jFKQKYaXGnUmmBTYjFL8O gNhc0qAKvNBYLViY9wQCYjYz/qa7mniTjIMZoMiw3xLbXBzdKsbTO6TJ0 41RZ5wIDm897d6LhcT93tr1M6R31LhntryppuZtkRnqFyNPcEbg74QrKh PDbK6dGzbUWw4hiFvqwaVYWScTJTsTfu7xOVIiWbuHjGRZSDfurQOTTyO Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387509" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387509" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914892" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:24 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 09/11] crypto: qat - add param check for DH Date: Fri, 6 May 2022 15:39:01 +0100 Message-Id: <20220506143903.31776-10-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Reject requests with a source buffer that is bigger than the size of the key. This is to prevent a possible integer underflow that might happen when copying the source scatterlist into a linear buffer. Cc: stable@vger.kernel.org Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_asym_algs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 947eeff181b4..7173a2a0a484 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -235,6 +235,10 @@ static int qat_dh_compute_value(struct kpp_request *req) req->dst_len = ctx->p_size; return -EOVERFLOW; } + + if (req->src_len > ctx->p_size) + return -EINVAL; + memset(msg, '\0', sizeof(*msg)); ICP_QAT_FW_PKE_HDR_VALID_FLAG_SET(msg->pke_hdr, ICP_QAT_FW_COMN_REQ_FLAG_SET); From patchwork Fri May 6 14:39:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841270 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A54BDC4167D for ; Fri, 6 May 2022 14:39:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1387623AbiEFOng (ORCPT ); Fri, 6 May 2022 10:43:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36010 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1442331AbiEFOnZ (ORCPT ); Fri, 6 May 2022 10:43:25 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E13206AA54; Fri, 6 May 2022 07:39:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651847982; x=1683383982; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LN40Utv6fBacuHLGcMEi9qKwhr/WVROAgUkXtQyys1k=; b=liW3KHE+VdK7k2kPVhB7DZrRLQ8NZxyf5qpyVyFM1t75tCcjG3OaqBfo KAkOVXEVNekFIG+08KYBUSEkXRfVk0X2ngJs+IfLkStAVD4c9QNBV8rpl D+8TBhdcPG++GBMOAr53QGNYk4mwbYBl3/MH01zYkITx2nF6L7xZBlPK0 KvDbB4qhHdZvNiUz7Xcw2lxJN8vegExK76BnJkOk2SHIBxwJ0zpjVlzQb 6NYH3otjwjZn4/gK54nMA7bNS/X1ksKph4suN/rwcMRuwd9ZHU4ZZT61W ZNmHID5G2z2fKUyrxLsJvJIaiwaiWB/98rWA1ko9HokPtLgO8QcnDPXhC w==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387516" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387516" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914899" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:26 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 10/11] crypto: qat - honor CRYPTO_TFM_REQ_MAY_SLEEP flag Date: Fri, 6 May 2022 15:39:02 +0100 Message-Id: <20220506143903.31776-11-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org If a request has the flag CRYPTO_TFM_REQ_MAY_SLEEP set, allocate memory using the flag GFP_KERNEL otherwise use GFP_ATOMIC. Cc: stable@vger.kernel.org Signed-off-by: Giovanni Cabiddu Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_common/qat_algs.c | 19 ++++++++++++------- drivers/crypto/qat/qat_common/qat_asym_algs.c | 17 ++++++++++------- drivers/crypto/qat/qat_common/qat_crypto.h | 5 +++++ 3 files changed, 27 insertions(+), 14 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index 873533dc43a7..148edbe379e3 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -703,7 +703,8 @@ static void qat_alg_free_bufl(struct qat_crypto_instance *inst, static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, struct scatterlist *sgl, struct scatterlist *sglout, - struct qat_crypto_request *qat_req) + struct qat_crypto_request *qat_req, + gfp_t flags) { struct device *dev = &GET_DEV(inst->accel_dev); int i, sg_nctr = 0; @@ -723,7 +724,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, qat_req->buf.sgl_dst_valid = false; if (n > QAT_MAX_BUFF_DESC) { - bufl = kzalloc_node(sz, GFP_ATOMIC, node); + bufl = kzalloc_node(sz, flags, node); if (unlikely(!bufl)) return -ENOMEM; } else { @@ -765,7 +766,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, sg_nctr = 0; if (n > QAT_MAX_BUFF_DESC) { - buflout = kzalloc_node(sz_out, GFP_ATOMIC, node); + buflout = kzalloc_node(sz_out, flags, node); if (unlikely(!buflout)) goto err_in; } else { @@ -966,6 +967,7 @@ static int qat_alg_aead_dec(struct aead_request *areq) struct icp_qat_fw_la_auth_req_params *auth_param; struct icp_qat_fw_la_bulk_req *msg; int digst_size = crypto_aead_authsize(aead_tfm); + gfp_t f = qat_algs_alloc_flags(&areq->base); int ret; u32 cipher_len; @@ -973,7 +975,7 @@ static int qat_alg_aead_dec(struct aead_request *areq) if (cipher_len % AES_BLOCK_SIZE != 0) return -EINVAL; - ret = qat_alg_sgl_to_bufl(ctx->inst, areq->src, areq->dst, qat_req); + ret = qat_alg_sgl_to_bufl(ctx->inst, areq->src, areq->dst, qat_req, f); if (unlikely(ret)) return ret; @@ -1008,6 +1010,7 @@ static int qat_alg_aead_enc(struct aead_request *areq) struct qat_crypto_request *qat_req = aead_request_ctx(areq); struct icp_qat_fw_la_cipher_req_params *cipher_param; struct icp_qat_fw_la_auth_req_params *auth_param; + gfp_t f = qat_algs_alloc_flags(&areq->base); struct icp_qat_fw_la_bulk_req *msg; u8 *iv = areq->iv; int ret; @@ -1015,7 +1018,7 @@ static int qat_alg_aead_enc(struct aead_request *areq) if (areq->cryptlen % AES_BLOCK_SIZE != 0) return -EINVAL; - ret = qat_alg_sgl_to_bufl(ctx->inst, areq->src, areq->dst, qat_req); + ret = qat_alg_sgl_to_bufl(ctx->inst, areq->src, areq->dst, qat_req, f); if (unlikely(ret)) return ret; @@ -1193,13 +1196,14 @@ static int qat_alg_skcipher_encrypt(struct skcipher_request *req) struct qat_alg_skcipher_ctx *ctx = crypto_tfm_ctx(tfm); struct qat_crypto_request *qat_req = skcipher_request_ctx(req); struct icp_qat_fw_la_cipher_req_params *cipher_param; + gfp_t f = qat_algs_alloc_flags(&req->base); struct icp_qat_fw_la_bulk_req *msg; int ret; if (req->cryptlen == 0) return 0; - ret = qat_alg_sgl_to_bufl(ctx->inst, req->src, req->dst, qat_req); + ret = qat_alg_sgl_to_bufl(ctx->inst, req->src, req->dst, qat_req, f); if (unlikely(ret)) return ret; @@ -1258,13 +1262,14 @@ static int qat_alg_skcipher_decrypt(struct skcipher_request *req) struct qat_alg_skcipher_ctx *ctx = crypto_tfm_ctx(tfm); struct qat_crypto_request *qat_req = skcipher_request_ctx(req); struct icp_qat_fw_la_cipher_req_params *cipher_param; + gfp_t f = qat_algs_alloc_flags(&req->base); struct icp_qat_fw_la_bulk_req *msg; int ret; if (req->cryptlen == 0) return 0; - ret = qat_alg_sgl_to_bufl(ctx->inst, req->src, req->dst, qat_req); + ret = qat_alg_sgl_to_bufl(ctx->inst, req->src, req->dst, qat_req, f); if (unlikely(ret)) return ret; diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c index 7173a2a0a484..16d97db9ea15 100644 --- a/drivers/crypto/qat/qat_common/qat_asym_algs.c +++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c @@ -224,9 +224,10 @@ static int qat_dh_compute_value(struct kpp_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(kpp_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; - int ret; + gfp_t flags = qat_algs_alloc_flags(&req->base); int n_input_params = 0; u8 *vaddr; + int ret; if (unlikely(!ctx->xa)) return -EINVAL; @@ -291,7 +292,7 @@ static int qat_dh_compute_value(struct kpp_request *req) } else { int shift = ctx->p_size - req->src_len; - qat_req->src_align = kzalloc(ctx->p_size, GFP_KERNEL); + qat_req->src_align = kzalloc(ctx->p_size, flags); if (unlikely(!qat_req->src_align)) return ret; @@ -317,7 +318,7 @@ static int qat_dh_compute_value(struct kpp_request *req) qat_req->dst_align = NULL; vaddr = sg_virt(req->dst); } else { - qat_req->dst_align = kzalloc(ctx->p_size, GFP_KERNEL); + qat_req->dst_align = kzalloc(ctx->p_size, flags); if (unlikely(!qat_req->dst_align)) goto unmap_src; @@ -650,6 +651,7 @@ static int qat_rsa_enc(struct akcipher_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(akcipher_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; + gfp_t flags = qat_algs_alloc_flags(&req->base); u8 *vaddr; int ret; @@ -696,7 +698,7 @@ static int qat_rsa_enc(struct akcipher_request *req) } else { int shift = ctx->key_sz - req->src_len; - qat_req->src_align = kzalloc(ctx->key_sz, GFP_KERNEL); + qat_req->src_align = kzalloc(ctx->key_sz, flags); if (unlikely(!qat_req->src_align)) return ret; @@ -714,7 +716,7 @@ static int qat_rsa_enc(struct akcipher_request *req) qat_req->dst_align = NULL; vaddr = sg_virt(req->dst); } else { - qat_req->dst_align = kzalloc(ctx->key_sz, GFP_KERNEL); + qat_req->dst_align = kzalloc(ctx->key_sz, flags); if (unlikely(!qat_req->dst_align)) goto unmap_src; vaddr = qat_req->dst_align; @@ -783,6 +785,7 @@ static int qat_rsa_dec(struct akcipher_request *req) struct qat_asym_request *qat_req = PTR_ALIGN(akcipher_request_ctx(req), 64); struct icp_qat_fw_pke_request *msg = &qat_req->req; + gfp_t flags = qat_algs_alloc_flags(&req->base); u8 *vaddr; int ret; @@ -839,7 +842,7 @@ static int qat_rsa_dec(struct akcipher_request *req) } else { int shift = ctx->key_sz - req->src_len; - qat_req->src_align = kzalloc(ctx->key_sz, GFP_KERNEL); + qat_req->src_align = kzalloc(ctx->key_sz, flags); if (unlikely(!qat_req->src_align)) return ret; @@ -857,7 +860,7 @@ static int qat_rsa_dec(struct akcipher_request *req) qat_req->dst_align = NULL; vaddr = sg_virt(req->dst); } else { - qat_req->dst_align = kzalloc(ctx->key_sz, GFP_KERNEL); + qat_req->dst_align = kzalloc(ctx->key_sz, flags); if (unlikely(!qat_req->dst_align)) goto unmap_src; vaddr = qat_req->dst_align; diff --git a/drivers/crypto/qat/qat_common/qat_crypto.h b/drivers/crypto/qat/qat_common/qat_crypto.h index 245b6d9a3650..df3c738ce323 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.h +++ b/drivers/crypto/qat/qat_common/qat_crypto.h @@ -109,4 +109,9 @@ static inline bool adf_hw_dev_has_crypto(struct adf_accel_dev *accel_dev) return true; } +static inline gfp_t qat_algs_alloc_flags(struct crypto_async_request *req) +{ + return req->flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC; +} + #endif From patchwork Fri May 6 14:39:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 12841272 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16B66C4332F for ; Fri, 6 May 2022 14:39:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1442326AbiEFOnh (ORCPT ); Fri, 6 May 2022 10:43:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346735AbiEFOnd (ORCPT ); Fri, 6 May 2022 10:43:33 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A7506AA6C; Fri, 6 May 2022 07:39:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1651847982; x=1683383982; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=DzSK5EtvSUu+rARESr34ozWVmZBIJIRsYnefuQZeksk=; b=YD3AlCGInBXcbEJfyn0aUm/e6ykSlAEoeFhqhIZDuU3OKXhUsGiuYNRw pjqnfdSjazspW6jz7kqvWakcMF5/b8kGfvyPSeqf7IkDUTjqkPLNu9qpP 76QQeMPm77XG4LALM/FnxYiAep3YJBCVShCmNXu0iQtHV6uBLV5lOhPhJ zX190H9fZGyjE2iL805q3CWEaU0faCJeSQDyDR8qCl2A1xhlJ//JN92+f nln9MtPQF3+teYXOzOWzuEefoWP83+Q9Yhbua7oQFqXfi0QUvfuWZAOp8 Chxhux72xiTSDCNb/H6TcTKntOEbAqpAucJNEeJocU0XS/n56R51s6NvU g==; X-IronPort-AV: E=McAfee;i="6400,9594,10339"; a="248387524" X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="248387524" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2022 07:39:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,203,1647327600"; d="scan'208";a="537914912" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by orsmga006.jf.intel.com with ESMTP; 06 May 2022 07:39:29 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, vdronov@redhat.com, Giovanni Cabiddu , stable@vger.kernel.org, Marco Chiappero , Adam Guerin , Wojciech Ziemba Subject: [PATCH v2 11/11] crypto: qat - re-enable registration of algorithms Date: Fri, 6 May 2022 15:39:03 +0100 Message-Id: <20220506143903.31776-12-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220506143903.31776-1-giovanni.cabiddu@intel.com> References: <20220506143903.31776-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Organization: Intel Research and Development Ireland Ltd - Co. Reg. #308263 - Collinstown Industrial Park, Leixlip, County Kildare - Ireland Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Re-enable the registration of algorithms after fixes to (1) use pre-allocated buffers in the datapath and (2) support the CRYPTO_TFM_REQ_MAY_BACKLOG flag. This reverts commit 8893d27ffcaf6ec6267038a177cb87bcde4dd3de. Cc: stable@vger.kernel.org Signed-off-by: Giovanni Cabiddu Reviewed-by: Marco Chiappero Reviewed-by: Adam Guerin Reviewed-by: Wojciech Ziemba --- drivers/crypto/qat/qat_4xxx/adf_drv.c | 7 ------- drivers/crypto/qat/qat_common/qat_crypto.c | 7 ------- 2 files changed, 14 deletions(-) diff --git a/drivers/crypto/qat/qat_4xxx/adf_drv.c b/drivers/crypto/qat/qat_4xxx/adf_drv.c index fa4c350c1bf9..a6c78b9c730b 100644 --- a/drivers/crypto/qat/qat_4xxx/adf_drv.c +++ b/drivers/crypto/qat/qat_4xxx/adf_drv.c @@ -75,13 +75,6 @@ static int adf_crypto_dev_config(struct adf_accel_dev *accel_dev) if (ret) goto err; - /* Temporarily set the number of crypto instances to zero to avoid - * registering the crypto algorithms. - * This will be removed when the algorithms will support the - * CRYPTO_TFM_REQ_MAY_BACKLOG flag - */ - instances = 0; - for (i = 0; i < instances; i++) { val = i; bank = i * 2; diff --git a/drivers/crypto/qat/qat_common/qat_crypto.c b/drivers/crypto/qat/qat_common/qat_crypto.c index 80d905ed102e..9341d892533a 100644 --- a/drivers/crypto/qat/qat_common/qat_crypto.c +++ b/drivers/crypto/qat/qat_common/qat_crypto.c @@ -161,13 +161,6 @@ int qat_crypto_dev_config(struct adf_accel_dev *accel_dev) if (ret) goto err; - /* Temporarily set the number of crypto instances to zero to avoid - * registering the crypto algorithms. - * This will be removed when the algorithms will support the - * CRYPTO_TFM_REQ_MAY_BACKLOG flag - */ - instances = 0; - for (i = 0; i < instances; i++) { val = i; snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i);