From fb5c100a14db85f205c37b08fb135153f75ca34f Mon Sep 17 00:00:00 2001 From: Akhil Goyal Date: Mon, 30 Sep 2019 20:10:48 +0530 Subject: [PATCH] crypto/dpaa_sec: support scatter gather for PDCP This patch add support for chained input or output mbufs for PDCP operations. Signed-off-by: Akhil Goyal --- drivers/crypto/dpaa_sec/dpaa_sec.c | 122 +++++++++++++++++++++++++++-- 1 file changed, 116 insertions(+), 6 deletions(-) diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c index 24ec7a3783..6578d8ef51 100644 --- a/drivers/crypto/dpaa_sec/dpaa_sec.c +++ b/drivers/crypto/dpaa_sec/dpaa_sec.c @@ -191,12 +191,18 @@ dqrr_out_fq_cb_rx(struct qman_portal *qm __always_unused, if (ctx->op->sess_type == RTE_CRYPTO_OP_SECURITY_SESSION) { struct qm_sg_entry *sg_out; uint32_t len; + struct rte_mbuf *mbuf = (ctx->op->sym->m_dst == NULL) ? + ctx->op->sym->m_src : ctx->op->sym->m_dst; sg_out = &job->sg[0]; hw_sg_to_cpu(sg_out); len = sg_out->length; - ctx->op->sym->m_src->pkt_len = len; - ctx->op->sym->m_src->data_len = len; + mbuf->pkt_len = len; + while (mbuf->next != NULL) { + len -= mbuf->data_len; + mbuf = mbuf->next; + } + mbuf->data_len = len; } dpaa_sec_ops[dpaa_sec_op_nb++] = ctx->op; dpaa_sec_op_ending(ctx); @@ -262,6 +268,7 @@ static inline int is_auth_cipher(dpaa_sec_session *ses) { return ((ses->cipher_alg != RTE_CRYPTO_CIPHER_NULL) && (ses->auth_alg != RTE_CRYPTO_AUTH_NULL) && + (ses->proto_alg != RTE_SECURITY_PROTOCOL_PDCP) && (ses->proto_alg != RTE_SECURITY_PROTOCOL_IPSEC)); } @@ -804,12 +811,18 @@ dpaa_sec_deq(struct dpaa_sec_qp *qp, struct rte_crypto_op **ops, int nb_ops) if (op->sess_type == RTE_CRYPTO_OP_SECURITY_SESSION) { struct qm_sg_entry *sg_out; uint32_t len; + struct rte_mbuf *mbuf = (op->sym->m_dst == NULL) ? + op->sym->m_src : op->sym->m_dst; sg_out = &job->sg[0]; hw_sg_to_cpu(sg_out); len = sg_out->length; - op->sym->m_src->pkt_len = len; - op->sym->m_src->data_len = len; + mbuf->pkt_len = len; + while (mbuf->next != NULL) { + len -= mbuf->data_len; + mbuf = mbuf->next; + } + mbuf->data_len = len; } if (!ctx->fd_status) { op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; @@ -1638,6 +1651,99 @@ build_proto(struct rte_crypto_op *op, dpaa_sec_session *ses) return cf; } +static inline struct dpaa_sec_job * +build_proto_sg(struct rte_crypto_op *op, dpaa_sec_session *ses) +{ + struct rte_crypto_sym_op *sym = op->sym; + struct dpaa_sec_job *cf; + struct dpaa_sec_op_ctx *ctx; + struct qm_sg_entry *sg, *out_sg, *in_sg; + struct rte_mbuf *mbuf; + uint8_t req_segs; + uint32_t in_len = 0, out_len = 0; + + if (sym->m_dst) + mbuf = sym->m_dst; + else + mbuf = sym->m_src; + + req_segs = mbuf->nb_segs + sym->m_src->nb_segs + 2; + if (req_segs > MAX_SG_ENTRIES) { + DPAA_SEC_DP_ERR("Proto: Max sec segs supported is %d", + MAX_SG_ENTRIES); + return NULL; + } + + ctx = dpaa_sec_alloc_ctx(ses); + if (!ctx) + return NULL; + cf = &ctx->job; + ctx->op = op; + /* output */ + out_sg = &cf->sg[0]; + out_sg->extension = 1; + qm_sg_entry_set64(out_sg, dpaa_mem_vtop(&cf->sg[2])); + + /* 1st seg */ + sg = &cf->sg[2]; + qm_sg_entry_set64(sg, rte_pktmbuf_mtophys(mbuf)); + sg->offset = 0; + + /* Successive segs */ + while (mbuf->next) { + sg->length = mbuf->data_len; + out_len += sg->length; + mbuf = mbuf->next; + cpu_to_hw_sg(sg); + sg++; + qm_sg_entry_set64(sg, rte_pktmbuf_mtophys(mbuf)); + sg->offset = 0; + } + sg->length = mbuf->buf_len - mbuf->data_off; + out_len += sg->length; + sg->final = 1; + cpu_to_hw_sg(sg); + + out_sg->length = out_len; + cpu_to_hw_sg(out_sg); + + /* input */ + mbuf = sym->m_src; + in_sg = &cf->sg[1]; + in_sg->extension = 1; + in_sg->final = 1; + in_len = mbuf->data_len; + + sg++; + qm_sg_entry_set64(in_sg, dpaa_mem_vtop(sg)); + + /* 1st seg */ + qm_sg_entry_set64(sg, rte_pktmbuf_mtophys(mbuf)); + sg->length = mbuf->data_len; + sg->offset = 0; + + /* Successive segs */ + mbuf = mbuf->next; + while (mbuf) { + cpu_to_hw_sg(sg); + sg++; + qm_sg_entry_set64(sg, rte_pktmbuf_mtophys(mbuf)); + sg->length = mbuf->data_len; + sg->offset = 0; + in_len += sg->length; + mbuf = mbuf->next; + } + sg->final = 1; + cpu_to_hw_sg(sg); + + in_sg->length = in_len; + cpu_to_hw_sg(in_sg); + + sym->m_src->packet_type &= ~RTE_PTYPE_L4_MASK; + + return cf; +} + static uint16_t dpaa_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops, uint16_t nb_ops) @@ -1697,7 +1803,9 @@ dpaa_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops, auth_only_len = op->sym->auth.data.length - op->sym->cipher.data.length; - if (rte_pktmbuf_is_contiguous(op->sym->m_src)) { + if (rte_pktmbuf_is_contiguous(op->sym->m_src) && + ((op->sym->m_dst == NULL) || + rte_pktmbuf_is_contiguous(op->sym->m_dst))) { if (is_proto_ipsec(ses)) { cf = build_proto(op, ses); } else if (is_proto_pdcp(ses)) { @@ -1718,7 +1826,9 @@ dpaa_sec_enqueue_burst(void *qp, struct rte_crypto_op **ops, goto send_pkts; } } else { - if (is_auth_only(ses)) { + if (is_proto_pdcp(ses) || is_proto_ipsec(ses)) { + cf = build_proto_sg(op, ses); + } else if (is_auth_only(ses)) { cf = build_auth_only_sg(op, ses); } else if (is_cipher_only(ses)) { cf = build_cipher_only_sg(op, ses); -- 2.20.1