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34 #include <netinet/in.h>
35 #include <netinet/ip.h>
37 #include <rte_branch_prediction.h>
39 #include <rte_crypto.h>
40 #include <rte_cryptodev.h>
47 create_session(struct ipsec_ctx *ipsec_ctx __rte_unused, struct ipsec_sa *sa)
49 uint32_t cdev_id_qp = 0;
51 struct cdev_key key = { 0 };
53 key.lcore_id = (uint8_t)rte_lcore_id();
55 key.cipher_algo = (uint8_t)sa->cipher_algo;
56 key.auth_algo = (uint8_t)sa->auth_algo;
58 ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
59 (void **)&cdev_id_qp);
61 IPSEC_LOG(ERR, IPSEC, "No cryptodev: core %u, cipher_algo %u, "
62 "auth_algo %u\n", key.lcore_id, key.cipher_algo,
67 IPSEC_LOG(DEBUG, IPSEC, "Create session for SA spi %u on cryptodev "
68 "%u qp %u\n", sa->spi, ipsec_ctx->tbl[cdev_id_qp].id,
69 ipsec_ctx->tbl[cdev_id_qp].qp);
71 sa->crypto_session = rte_cryptodev_sym_session_create(
72 ipsec_ctx->tbl[cdev_id_qp].id, sa->xforms);
74 sa->cdev_id_qp = cdev_id_qp;
80 enqueue_cop(struct cdev_qp *cqp, struct rte_crypto_op *cop)
84 cqp->buf[cqp->len++] = cop;
86 if (cqp->len == MAX_PKT_BURST) {
87 ret = rte_cryptodev_enqueue_burst(cqp->id, cqp->qp,
90 IPSEC_LOG(DEBUG, IPSEC, "Cryptodev %u queue %u:"
91 " enqueued %u crypto ops out of %u\n",
94 for (i = ret; i < cqp->len; i++)
95 rte_pktmbuf_free(cqp->buf[i]->sym->m_src);
97 cqp->in_flight += ret;
102 static inline uint16_t
103 ipsec_processing(struct ipsec_ctx *ipsec_ctx, struct rte_mbuf *pkts[],
104 struct ipsec_sa *sas[], uint16_t nb_pkts, uint16_t max_pkts)
106 int ret = 0, i, j, nb_cops;
107 struct ipsec_mbuf_metadata *priv;
108 struct rte_crypto_op *cops[max_pkts];
110 struct rte_mbuf *pkt;
112 for (i = 0; i < nb_pkts; i++) {
113 rte_prefetch0(sas[i]);
114 rte_prefetch0(pkts[i]);
116 priv = get_priv(pkts[i]);
120 IPSEC_ASSERT(sa != NULL);
122 priv->cop.type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
124 rte_prefetch0(&priv->sym_cop);
125 priv->cop.sym = &priv->sym_cop;
127 if ((unlikely(sa->crypto_session == NULL)) &&
128 create_session(ipsec_ctx, sa)) {
129 rte_pktmbuf_free(pkts[i]);
133 rte_crypto_op_attach_sym_session(&priv->cop,
136 ret = sa->pre_crypto(pkts[i], sa, &priv->cop);
138 rte_pktmbuf_free(pkts[i]);
142 IPSEC_ASSERT(sa->cdev_id_qp < ipsec_ctx->nb_qps);
143 enqueue_cop(&ipsec_ctx->tbl[sa->cdev_id_qp], &priv->cop);
147 for (i = 0; i < ipsec_ctx->nb_qps && nb_pkts < max_pkts; i++) {
150 cqp = &ipsec_ctx->tbl[ipsec_ctx->last_qp++];
151 if (ipsec_ctx->last_qp == ipsec_ctx->nb_qps)
152 ipsec_ctx->last_qp %= ipsec_ctx->nb_qps;
154 if (cqp->in_flight == 0)
157 nb_cops = rte_cryptodev_dequeue_burst(cqp->id, cqp->qp,
158 cops, max_pkts - nb_pkts);
160 cqp->in_flight -= nb_cops;
162 for (j = 0; j < nb_cops; j++) {
163 pkt = cops[j]->sym->m_src;
166 priv = get_priv(pkt);
169 IPSEC_ASSERT(sa != NULL);
171 ret = sa->post_crypto(pkt, sa, cops[j]);
173 rte_pktmbuf_free(pkt);
175 pkts[nb_pkts++] = pkt;
184 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
185 uint16_t nb_pkts, uint16_t len)
187 struct ipsec_sa *sas[nb_pkts];
189 inbound_sa_lookup(ctx->sa_ctx, pkts, sas, nb_pkts);
191 return ipsec_processing(ctx, pkts, sas, nb_pkts, len);
195 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
196 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len)
198 struct ipsec_sa *sas[nb_pkts];
200 outbound_sa_lookup(ctx->sa_ctx, sa_idx, sas, nb_pkts);
202 return ipsec_processing(ctx, pkts, sas, nb_pkts, len);