From patchwork Thu Mar 31 15:36:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 555669 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 27583C433EF for ; Thu, 31 Mar 2022 15:40:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233616AbiCaPmm (ORCPT ); Thu, 31 Mar 2022 11:42:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47392 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239009AbiCaPm1 (ORCPT ); Thu, 31 Mar 2022 11:42:27 -0400 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A528C58E4A; Thu, 31 Mar 2022 08:37:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648741040; x=1680277040; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Tq5FH2el9YQ0UIBVsCe8lCMGwtLVfNqgfWD1f+AvdIE=; b=jDxP60IOsd4Ugz+h0ipVSjFfJTWJFwE1A6kU+73CzYTOnBV88Oo48ypQ n1ESAaUuTkfgGwubvJwxGfG0MOWu7HFr08jRuz49KkZBJy9tiSKjAE1a2 c/2KC3ktqOUmiS+ecUF/UhUUlq9Z20ou74gLUa6nhZRyErCzRrt2CyXxZ BiL5tY+yjQ1F9lBK4H1VjCMszhGcLssQb9Dlk25bbGM8F2Op4Vy1DNp+M itcUx+/XQc+gwed+oNK0OdPwuN/BwJB24YPViQnCC3fEPhA7AjkqtDI6o N/mY/hKuooiMC/3UI3f6xDhgH6aUEHluEUACWjkavkMmIaEf5yGai+FMw A==; X-IronPort-AV: E=McAfee;i="6200,9189,10302"; a="242022740" X-IronPort-AV: E=Sophos;i="5.90,225,1643702400"; d="scan'208";a="242022740" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Mar 2022 08:36:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,225,1643702400"; d="scan'208";a="555124770" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.76]) by fmsmga007.fm.intel.com with ESMTP; 31 Mar 2022 08:36:58 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, marco.chiappero@intel.com, Giovanni Cabiddu , stable@vger.kernel.org Subject: [PATCH v2 2/4] crypto: qat - refactor submission logic Date: Thu, 31 Mar 2022 16:36:50 +0100 Message-Id: <20220331153652.37020-3-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220331153652.37020-1-giovanni.cabiddu@intel.com> References: <20220331153652.37020-1-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 Move the submission loop to a new function, qat_alg_send_message(), and share it between the symmetric and the asymmetric algorithms. If the HW queues are full return -ENOSPC instead of -EBUSY. 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 b9228f3a26de..f93218dd6de3 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;