Function memif_socket_init

dpdk/drivers/net/memif/memif_socket.c:1002–1058

}

int
memif_socket_init(struct rte_eth_dev *dev, const char *socket_filename)
{
	struct pmd_internals *pmd = dev->data->dev_private;
	struct memif_socket *socket = NULL;
	struct memif_socket_dev_list_elt *elt;
	struct pmd_internals *tmp_pmd;
	struct rte_hash *hash;
	int ret;
	char key[MEMIF_SOCKET_UN_SIZE];

	hash = rte_hash_find_existing(MEMIF_SOCKET_HASH_NAME);
	if (hash == NULL) {
		hash = memif_create_socket_hash();
		if (hash == NULL) {
			MIF_LOG(ERR, "Failed to create memif socket hash.");
			return -1;
		}
	}

	memset(key, 0, MEMIF_SOCKET_UN_SIZE);
	strlcpy(key, socket_filename, MEMIF_SOCKET_UN_SIZE);
	ret = rte_hash_lookup_data(hash, key, (void **)&socket);
	if (ret < 0) {
		socket = memif_socket_create(key,
			(pmd->role == MEMIF_ROLE_CLIENT) ? 0 : 1,
			pmd->flags & ETH_MEMIF_FLAG_SOCKET_ABSTRACT,
			pmd->owner_uid, pmd->owner_gid);
		if (socket == NULL)
			return -1;
		ret = rte_hash_add_key_data(hash, key, socket);
		if (ret < 0) {
			MIF_LOG(ERR, "Failed to add socket to socket hash.");
			return ret;
		}
	}
	pmd->socket_filename = socket->filename;

	TAILQ_FOREACH(elt, &socket->dev_queue, next) {
		tmp_pmd = elt->dev->data->dev_private;
		if (tmp_pmd->id == pmd->id && tmp_pmd->role == pmd->role) {
			MIF_LOG(ERR, "Two interfaces with the same id (%d) can "
				"not have the same role.", pmd->id);
			return -1;
		}
	}

	elt = rte_malloc("pmd-queue", sizeof(struct memif_socket_dev_list_elt), 0);
	if (elt == NULL) {
		MIF_LOG(ERR, "Failed to add device to socket device list.");
		return -1;
	}
	elt->dev = dev;
	TAILQ_INSERT_TAIL(&socket->dev_queue, elt, next);

	return 0;
}