Function ipsec_satbl_init

dpdk/examples/ipsec-secgw/sa.c:1611–1656

* Allocate space and init rte_ipsec_sa structures, * one per session. */

 * one per session.
 */
static int
ipsec_satbl_init(struct sa_ctx *ctx, uint32_t nb_ent, int32_t socket,
		struct socket_ctx *skt_ctx, struct ipsec_ctx *ips_ctx[],
		const struct eventmode_conf *em_conf)
{
	int32_t rc, sz;
	uint32_t i, idx;
	size_t tsz;
	struct rte_ipsec_sa *sa;
	struct ipsec_sa *lsa;
	struct rte_ipsec_sa_prm prm;

	/* determine SA size */
	idx = 0;
	fill_ipsec_sa_prm(&prm, ctx->sa + idx, NULL, NULL);
	sz = rte_ipsec_sa_size(&prm);
	if (sz < 0) {
		RTE_LOG(ERR, IPSEC, "%s(%p, %u, %d): "
			"failed to determine SA size, error code: %d\n",
			__func__, ctx, nb_ent, socket, sz);
		return sz;
	}

	tsz = sz * nb_ent;

	ctx->satbl = rte_zmalloc_socket(NULL, tsz, RTE_CACHE_LINE_SIZE, socket);
	if (ctx->satbl == NULL) {
		RTE_LOG(ERR, IPSEC,
			"%s(%p, %u, %d): failed to allocate %zu bytes\n",
			__func__,  ctx, nb_ent, socket, tsz);
		return -ENOMEM;
	}

	rc = 0;
	for (i = 0; i != nb_ent && rc == 0; i++) {

		idx = i;

		sa = (struct rte_ipsec_sa *)((uintptr_t)ctx->satbl + sz * i);
		lsa = ctx->sa + idx;

		rc = ipsec_sa_init(lsa, sa, sz, skt_ctx, ips_ctx, em_conf);
	}

	return rc;
}

static int
sa_cmp(const void *p, const void *q)