Function mana_mp_mr_create

dpdk/drivers/net/mana/mp.c:18–62

* Process MR request from secondary process. */

 * Process MR request from secondary process.
 */
static int
mana_mp_mr_create(struct mana_priv *priv, uintptr_t addr, uint32_t len)
{
	struct ibv_mr *ibv_mr;
	int ret;
	struct mana_mr_cache *mr;

	ibv_mr = ibv_reg_mr(priv->ib_pd, (void *)addr, len,
			    IBV_ACCESS_LOCAL_WRITE);

	if (!ibv_mr)
		return -errno;

	DP_LOG(DEBUG, "MR (2nd) lkey %u addr %p len %zu",
	       ibv_mr->lkey, ibv_mr->addr, ibv_mr->length);

	mr = rte_calloc("MANA MR", 1, sizeof(*mr), 0);
	if (!mr) {
		DRV_LOG(ERR, "(2nd) Failed to allocate MR");
		ret = -ENOMEM;
		goto fail_alloc;
	}
	mr->lkey = ibv_mr->lkey;
	mr->addr = (uintptr_t)ibv_mr->addr;
	mr->len = ibv_mr->length;
	mr->verb_obj = ibv_mr;

	rte_spinlock_lock(&priv->mr_btree_lock);
	ret = mana_mr_btree_insert(&priv->mr_btree, mr);
	rte_spinlock_unlock(&priv->mr_btree_lock);
	if (ret) {
		DRV_LOG(ERR, "(2nd) Failed to add to global MR btree");
		goto fail_btree;
	}

	return 0;

fail_btree:
	rte_free(mr);

fail_alloc:
	ibv_dereg_mr(ibv_mr);

	return ret;
}

static void
mp_init_msg(struct rte_mp_msg *msg, enum mana_mp_req_type type, int port_id)