Function create_lookaside_session

dpdk/examples/ipsec-secgw/ipsec.c:238–416

}

int
create_lookaside_session(struct ipsec_ctx *ipsec_ctx_lcore[],
	struct socket_ctx *skt_ctx, const struct eventmode_conf *em_conf,
	struct ipsec_sa *sa, struct rte_ipsec_session *ips)
{
	uint16_t cdev_id = RTE_CRYPTO_MAX_DEVS;
	enum rte_crypto_op_sess_type sess_type;
	struct rte_cryptodev_info cdev_info;
	enum rte_crypto_op_type op_type;
	unsigned long cdev_id_qp = 0;
	struct ipsec_ctx *ipsec_ctx;
	struct cdev_key key = { 0 };
	void *sess = NULL;
	uint32_t lcore_id;
	int32_t ret = 0;

	RTE_LCORE_FOREACH(lcore_id) {
		ipsec_ctx = ipsec_ctx_lcore[lcore_id];

		/* Core is not bound to any cryptodev, skip it */
		if (ipsec_ctx->cdev_map == NULL)
			continue;

		/* Looking for cryptodev, which can handle this SA */
		key.lcore_id = lcore_id;
		key.cipher_algo = (uint8_t)sa->cipher_algo;
		key.auth_algo = (uint8_t)sa->auth_algo;
		key.aead_algo = (uint8_t)sa->aead_algo;

		ret = rte_hash_lookup_data(ipsec_ctx->cdev_map, &key,
				(void **)&cdev_id_qp);
		if (ret == -ENOENT)
			continue;
		if (ret < 0) {
			RTE_LOG(ERR, IPSEC,
					"No cryptodev: core %u, cipher_algo %u, "
					"auth_algo %u, aead_algo %u\n",
					key.lcore_id,
					key.cipher_algo,
					key.auth_algo,
					key.aead_algo);
			return ret;
		}

		/* Verify that all cores are using same cryptodev for current
		 * algorithm combination, required by SA.
		 * Current cryptodev mapping process will map SA to the first
		 * cryptodev that matches requirements, so it's a double check,
		 * not an additional restriction.
		 */
		if (cdev_id == RTE_CRYPTO_MAX_DEVS)
			cdev_id = ipsec_ctx->tbl[cdev_id_qp].id;
		else if (cdev_id != ipsec_ctx->tbl[cdev_id_qp].id) {
			struct rte_cryptodev_info dev_info_1, dev_info_2;
			rte_cryptodev_info_get(cdev_id, &dev_info_1);
			rte_cryptodev_info_get(ipsec_ctx->tbl[cdev_id_qp].id,
					&dev_info_2);
			if (dev_info_1.driver_id == dev_info_2.driver_id) {