--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+
+#include <rte_branch_prediction.h>
+#include <rte_log.h>
+#include <rte_crypto.h>
+#include <rte_cryptodev.h>
+#include <rte_mbuf.h>
+#include <rte_hash.h>
+
+#include "ipsec.h"
+
+static inline int
+create_session(struct ipsec_ctx *ipsec_ctx __rte_unused, struct ipsec_sa *sa)
+{
+ uint32_t cdev_id_qp = 0;
+ int32_t ret;
+ struct cdev_key key = { 0 };
+
+ key.lcore_id = (uint8_t)rte_lcore_id();
+
+ key.cipher_algo = (uint8_t)sa->cipher_algo;
+ key.auth_algo = (uint8_t)sa->auth_algo;
+
+ ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
+ (void **)&cdev_id_qp);
+ if (ret < 0) {
+ IPSEC_LOG(ERR, IPSEC, "No cryptodev: core %u, cipher_algo %u, "
+ "auth_algo %u\n", key.lcore_id, key.cipher_algo,
+ key.auth_algo);
+ return -1;
+ }
+
+ IPSEC_LOG(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
+ "%u qp %u\n", sa->spi, ipsec_ctx->tbl[cdev_id_qp].id,
+ ipsec_ctx->tbl[cdev_id_qp].qp);
+
+ sa->crypto_session = rte_cryptodev_sym_session_create(
+ ipsec_ctx->tbl[cdev_id_qp].id, sa->xforms);
+
+ sa->cdev_id_qp = cdev_id_qp;
+
+ return 0;
+}
+
+static inline void
+enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
+{
+ int ret, i;
+
+ cqp->buf[cqp->len++] = cop;
+
+ if (cqp->len == MAX_PKT_BURST) {
+ ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp,
+ cqp->buf, cqp->len);
+ if (ret < cqp->len) {
+ IPSEC_LOG(DEBUG, IPSEC, "Cryptodev %u queue %u:"
+ " enqueued %u crypto ops out of %u\n",
+ cqp->id, cqp->qp,
+ ret, cqp->len);
+ for (i = ret; i < cqp->len; i++)
+ rte_pktmbuf_free(cqp->buf[i]->sym->m_src);
+ }
+ cqp->in_flight += ret;
+ cqp->len = 0;
+ }
+}
+
+static inline uint16_t
+ipsec_processing(struct ipsec_ctx *ipsec_ctx, struct rte_mbuf *pkts[],
+ struct ipsec_sa *sas[], uint16_t nb_pkts, uint16_t max_pkts)
+{
+ int ret = 0, i, j, nb_cops;
+ struct ipsec_mbuf_metadata *priv;
+ struct rte_crypto_op *cops[max_pkts];
+ struct ipsec_sa *sa;
+ struct rte_mbuf *pkt;
+
+ for (i = 0; i < nb_pkts; i++) {
+ rte_prefetch0(sas[i]);
+ rte_prefetch0(pkts[i]);
+
+ priv = get_priv(pkts[i]);
+ sa = sas[i];
+ priv->sa = sa;
+
+ IPSEC_ASSERT(sa != NULL);
+
+ priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
+
+ rte_prefetch0(&priv->sym_cop);
+ priv->cop.sym = &priv->sym_cop;
+
+ if ((unlikely(sa->crypto_session == NULL)) &&
+ create_session(ipsec_ctx, sa)) {
+ rte_pktmbuf_free(pkts[i]);
+ continue;
+ }
+
+ rte_crypto_op_attach_sym_session(&priv->cop,
+ sa->crypto_session);
+
+ ret = sa->pre_crypto(pkts[i], sa, &priv->cop);
+ if (unlikely(ret)) {
+ rte_pktmbuf_free(pkts[i]);
+ continue;
+ }
+
+ IPSEC_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
+ enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
+ }
+
+ nb_pkts = 0;
+ for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
+ struct cdev_qp *cqp;
+
+ cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
+ if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
+ ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
+
+ if (cqp->in_flight == 0)
+ continue;
+
+ nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
+ cops, max_pkts - nb_pkts);
+
+ cqp->in_flight -= nb_cops;
+
+ for (j = 0; j < nb_cops; j++) {
+ pkt = cops[j]->sym->m_src;
+ rte_prefetch0(pkt);
+
+ priv = get_priv(pkt);
+ sa = priv->sa;
+
+ IPSEC_ASSERT(sa != NULL);
+
+ ret = sa->post_crypto(pkt, sa, cops[j]);
+ if (unlikely(ret))
+ rte_pktmbuf_free(pkt);
+ else
+ pkts[nb_pkts++] = pkt;
+ }
+ }
+
+ /* return packets */
+ return nb_pkts;
+}
+
+uint16_t
+ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
+ uint16_t nb_pkts, uint16_t len)
+{
+ struct ipsec_sa *sas[nb_pkts];
+
+ inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
+
+ return ipsec_processing(ctx, pkts, sas, nb_pkts, len);
+}
+
+uint16_t
+ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
+ uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
+{
+ struct ipsec_sa *sas[nb_pkts];
+
+ outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
+
+ return ipsec_processing(ctx, pkts, sas, nb_pkts, len);
+}
Code Review / deb_dpdk.git / blobdiff