From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-f65.google.com (mail-lf1-f65.google.com [209.85.167.65]) by dpdk.org (Postfix) with ESMTP id 55FB358FA for ; Mon, 27 Aug 2018 14:23:04 +0200 (CEST) Received: by mail-lf1-f65.google.com with SMTP id j201-v6so11773201lfg.6 for ; Mon, 27 Aug 2018 05:23:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=ZQmJyEzWJpCnB0Srrlzqs873BnKB92BaiGa3MKI7CqM=; b=wqAy3fMm2sDH69OsHgNDfC6lClCju0M4/izS279aaS9Q1gk73SfokV47bBu4BSEufI /gC6HdQX1gwu/4mA0N1Pqqox8syB9rzJT4+k91TRpXUTB1alSL2yF51pRI6TDUArrmfG b+FyVxSBZUMim97xroL5D2UgV7/BxwkGkqaR0K7p5sGjLHK5FiniVSKySIgIFSUFHU9M 5H28un/fLI1lnQXlLnfSjnc1tp9ITia8eo25S1f9Ikxa1hFULWxUqZVeGN1G2DtFfcD6 hhjfJ+z5bdpPaG445YgwxTFHahc0gnVlXf2GGme4K8aMstuDk0XNlquA3lBsTGhc/Q4R WSTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ZQmJyEzWJpCnB0Srrlzqs873BnKB92BaiGa3MKI7CqM=; b=WBLoI5SHud4b1Oubmx/gkIEw3LiSQNe8oGzFXWCFk8g9iTVS5Ng3gAoC5Kk0eXsFRA rGphMdkgWAbMIHSIWB0Gw8vUOGtwQchViMzYhdLfzqa9BeTbO1S24S2SW8dFPM1grBAi WrbYSsZIptFSEySKMF37QCAjzLAPGcjpxErQpxXFG1nnazbsg4fEFdTg10wgroyh2PsC 34rhmx0wHSTRqY6r6CVPih/Q5ix2xRN99p1Q031IJYqE7GLgosV6CkQkAPplwwkcyCUJ miR4rHlzmv3GAJyPpizXiyCSX6+CxIXQkYX+VX732DKhtqZhavhPQ0EbgJU2t34gbKIF dYFQ== X-Gm-Message-State: APzg51B2WVI723V/oG6u0NNEl3A0gECdcoCLvcnYwkEJGVrv9UZM3Yxo BNKStvbADSk+MediKNX7tKl9RMRE3pE= X-Google-Smtp-Source: ANB0VdYPwxcyEjMlEb8IYfAw4RQjPF4H7i0aDR7AmFqKGJj/drjnVzZoA9EoXFAjjptqm6FRFYhqDA== X-Received: by 2002:a19:4803:: with SMTP id v3-v6mr7914849lfa.46.1535372583747; Mon, 27 Aug 2018 05:23:03 -0700 (PDT) Received: from sh.semihalf.local (31-172-191-173.noc.fibertech.net.pl. [31.172.191.173]) by smtp.gmail.com with ESMTPSA id t14-v6sm2454756ljg.17.2018.08.27.05.23.02 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 27 Aug 2018 05:23:03 -0700 (PDT) From: Tomasz Duszynski To: dev@dpdk.org Cc: nsamsono@marvell.com, mw@semihalf.com, Zyta Szpak Date: Mon, 27 Aug 2018 14:22:52 +0200 Message-Id: <1535372574-18950-2-git-send-email-tdu@semihalf.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1535372574-18950-1-git-send-email-tdu@semihalf.com> References: <1535372574-18950-1-git-send-email-tdu@semihalf.com> Subject: [dpdk-dev] [PATCH 1/3] crypto/mvsam: add S/G support to crypto dirver X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Aug 2018 12:23:04 -0000 From: Zyta Szpak The patch adds support for chained source mbufs given to crypto operations. The crypto engine accepts source buffer containing a number of segments. The destination buffer stays the same - always one segment. On decryption, EIP engine will look for digest at 'auth_icv_offset' offset in SRC buffer.It must be placed in the last segment and the offset must be set to reach digest in the last segment. If application doesn't placed digest in source mbuf, driver try to copy it to a last segment. Signed-off-by: Zyta Szpak Signed-off-by: Natalie Samsonov Reviewed-by: Dmitri Epshtein --- drivers/crypto/mvsam/rte_mrvl_pmd.c | 96 +++++++++++++++++++++-------- drivers/crypto/mvsam/rte_mrvl_pmd_private.h | 7 +++ 2 files changed, 76 insertions(+), 27 deletions(-) diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c b/drivers/crypto/mvsam/rte_mrvl_pmd.c index 961802e..001aa28 100644 --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c @@ -452,8 +452,10 @@ mrvl_request_prepare(struct sam_cio_op_params *request, struct rte_crypto_op *op) { struct mrvl_crypto_session *sess; - struct rte_mbuf *dst_mbuf; + struct rte_mbuf *src_mbuf, *dst_mbuf; + uint16_t segments_nb; uint8_t *digest; + int i; if (unlikely(op->sess_type == RTE_CRYPTO_OP_SESSIONLESS)) { MRVL_CRYPTO_LOG_ERR("MRVL CRYPTO PMD only supports session " @@ -469,29 +471,47 @@ mrvl_request_prepare(struct sam_cio_op_params *request, return -EINVAL; } - /* + request->sa = sess->sam_sess; + request->cookie = op; + + src_mbuf = op->sym->m_src; + segments_nb = src_mbuf->nb_segs; + /* The following conditions must be met: + * - Destination buffer is required when segmented source buffer + * - Segmented destination buffer is not supported + */ + if ((segments_nb > 1) && (!op->sym->m_dst)) { + MRVL_CRYPTO_LOG_ERR("op->sym->m_dst = NULL!\n"); + return -1; + } + /* For non SG case: * If application delivered us null dst buffer, it means it expects * us to deliver the result in src buffer. */ dst_mbuf = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src; - request->sa = sess->sam_sess; - request->cookie = op; - - /* Single buffers only, sorry. */ - request->num_bufs = 1; - request->src = src_bd; - src_bd->vaddr = rte_pktmbuf_mtod(op->sym->m_src, void *); - src_bd->paddr = rte_pktmbuf_iova(op->sym->m_src); - src_bd->len = rte_pktmbuf_data_len(op->sym->m_src); - - /* Empty source. */ - if (rte_pktmbuf_data_len(op->sym->m_src) == 0) { - /* EIP does not support 0 length buffers. */ - MRVL_CRYPTO_LOG_ERR("Buffer length == 0 not supported!"); + if (!rte_pktmbuf_is_contiguous(dst_mbuf)) { + MRVL_CRYPTO_LOG_ERR("Segmented destination buffer " + "not supported.\n"); return -1; } + request->num_bufs = segments_nb; + for (i = 0; i < segments_nb; i++) { + /* Empty source. */ + if (rte_pktmbuf_data_len(src_mbuf) == 0) { + /* EIP does not support 0 length buffers. */ + MRVL_CRYPTO_LOG_ERR("Buffer length == 0 not supported!"); + return -1; + } + src_bd[i].vaddr = rte_pktmbuf_mtod(src_mbuf, void *); + src_bd[i].paddr = rte_pktmbuf_iova(src_mbuf); + src_bd[i].len = rte_pktmbuf_data_len(src_mbuf); + + src_mbuf = src_mbuf->next; + } + request->src = src_bd; + /* Empty destination. */ if (rte_pktmbuf_data_len(dst_mbuf) == 0) { /* Make dst buffer fit at least source data. */ @@ -542,7 +562,7 @@ mrvl_request_prepare(struct sam_cio_op_params *request, /* * EIP supports only scenarios where ICV(digest buffer) is placed at - * auth_icv_offset. Any other placement means risking errors. + * auth_icv_offset. */ if (sess->sam_sess_params.dir == SAM_DIR_ENCRYPT) { /* @@ -551,17 +571,36 @@ mrvl_request_prepare(struct sam_cio_op_params *request, */ if (rte_pktmbuf_mtod_offset( dst_mbuf, uint8_t *, - request->auth_icv_offset) == digest) { + request->auth_icv_offset) == digest) return 0; - } } else {/* sess->sam_sess_params.dir == SAM_DIR_DECRYPT */ /* * EIP will look for digest at auth_icv_offset - * offset in SRC buffer. + * offset in SRC buffer. It must be placed in the last + * segment and the offset must be set to reach digest + * in the last segment */ - if (rte_pktmbuf_mtod_offset( - op->sym->m_src, uint8_t *, - request->auth_icv_offset) == digest) { + struct rte_mbuf *last_seg = op->sym->m_src; + uint32_t d_offset = request->auth_icv_offset; + u32 d_size = sess->sam_sess_params.u.basic.auth_icv_len; + unsigned char *d_ptr; + + /* Find the last segment and the offset for the last segment */ + while ((last_seg->next != NULL) && + (d_offset >= last_seg->data_len)) { + d_offset -= last_seg->data_len; + last_seg = last_seg->next; + } + + if (rte_pktmbuf_mtod_offset(last_seg, uint8_t *, + d_offset) == digest) + return 0; + + /* copy digest to last segment */ + if (last_seg->buf_len >= (d_size + d_offset)) { + d_ptr = (unsigned char *)last_seg->buf_addr + + d_offset; + rte_memcpy(d_ptr, digest, d_size); return 0; } } @@ -597,11 +636,10 @@ mrvl_crypto_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, int ret; struct sam_cio_op_params requests[nb_ops]; /* - * DPDK uses single fragment buffers, so we can KISS descriptors. * SAM does not store bd pointers, so on-stack scope will be enough. */ - struct sam_buf_info src_bd[nb_ops]; - struct sam_buf_info dst_bd[nb_ops]; + struct mrvl_crypto_src_table src_bd[nb_ops]; + struct sam_buf_info dst_bd[nb_ops]; struct mrvl_crypto_qp *qp = (struct mrvl_crypto_qp *)queue_pair; if (nb_ops == 0) @@ -609,11 +647,14 @@ mrvl_crypto_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, /* Prepare the burst. */ memset(&requests, 0, sizeof(requests)); + memset(&src_bd, 0, sizeof(src_bd)); /* Iterate through */ for (; iter_ops < nb_ops; ++iter_ops) { + /* store the op id for debug */ + src_bd[iter_ops].iter_ops = iter_ops; if (mrvl_request_prepare(&requests[iter_ops], - &src_bd[iter_ops], + src_bd[iter_ops].src_bd, &dst_bd[iter_ops], ops[iter_ops]) < 0) { MRVL_CRYPTO_LOG_ERR( @@ -767,6 +808,7 @@ cryptodev_mrvl_crypto_create(const char *name, sam_params.max_num_sessions = internals->max_nb_sessions; + /* sam_set_debug_flags(3); */ return sam_init(&sam_params); init_error: diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd_private.h b/drivers/crypto/mvsam/rte_mrvl_pmd_private.h index c16d95b..0689fc3 100644 --- a/drivers/crypto/mvsam/rte_mrvl_pmd_private.h +++ b/drivers/crypto/mvsam/rte_mrvl_pmd_private.h @@ -38,6 +38,8 @@ */ #define BITS2BYTES(x) ((x) >> 3) +#define MRVL_MAX_SEGMENTS 16 + /** The operation order mode enumerator. */ enum mrvl_crypto_chain_order { MRVL_CRYPTO_CHAIN_CIPHER_ONLY, @@ -84,6 +86,11 @@ struct mrvl_crypto_session { uint16_t cipher_iv_offset; } __rte_cache_aligned; +struct mrvl_crypto_src_table { + uint16_t iter_ops; + struct sam_buf_info src_bd[MRVL_MAX_SEGMENTS]; +} __rte_cache_aligned; + /** Set and validate MRVL crypto session parameters */ extern int mrvl_crypto_set_session_parameters(struct mrvl_crypto_session *sess, -- 2.7.4