* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-mlx5_hairpin_bind(struct rte_eth_dev *dev)
+mlx5_hairpin_auto_bind(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_devx_modify_sq_attr sq_attr = { 0 };
return -rte_errno;
}
+/*
+ * Fetch the peer queue's SW & HW information.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param peer_queue
+ * Index of the queue to fetch the information.
+ * @param current_info
+ * Pointer to the input peer information, not used currently.
+ * @param peer_info
+ * Pointer to the structure to store the information, output.
+ * @param direction
+ * Positive to get the RxQ information, zero to get the TxQ information.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_hairpin_queue_peer_update(struct rte_eth_dev *dev, uint16_t peer_queue,
+ struct rte_hairpin_peer_info *current_info,
+ struct rte_hairpin_peer_info *peer_info,
+ uint32_t direction)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ RTE_SET_USED(current_info);
+
+ if (dev->data->dev_started == 0) {
+ rte_errno = EBUSY;
+ DRV_LOG(ERR, "peer port %u is not started",
+ dev->data->port_id);
+ return -rte_errno;
+ }
+ /*
+ * Peer port used as egress. In the current design, hairpin Tx queue
+ * will be bound to the peer Rx queue. Indeed, only the information of
+ * peer Rx queue needs to be fetched.
+ */
+ if (direction == 0) {
+ struct mlx5_txq_ctrl *txq_ctrl;
+
+ txq_ctrl = mlx5_txq_get(dev, peer_queue);
+ if (txq_ctrl == NULL) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "Failed to get port %u Tx queue %d",
+ dev->data->port_id, peer_queue);
+ return -rte_errno;
+ }
+ if (txq_ctrl->type != MLX5_TXQ_TYPE_HAIRPIN) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d is not a hairpin Txq",
+ dev->data->port_id, peer_queue);
+ mlx5_txq_release(dev, peer_queue);
+ return -rte_errno;
+ }
+ if (txq_ctrl->obj == NULL || txq_ctrl->obj->sq == NULL) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "port %u no Txq object found: %d",
+ dev->data->port_id, peer_queue);
+ mlx5_txq_release(dev, peer_queue);
+ return -rte_errno;
+ }
+ peer_info->qp_id = txq_ctrl->obj->sq->id;
+ peer_info->vhca_id = priv->config.hca_attr.vhca_id;
+ /* 1-to-1 mapping, only the first one is used. */
+ peer_info->peer_q = txq_ctrl->hairpin_conf.peers[0].queue;
+ peer_info->tx_explicit = txq_ctrl->hairpin_conf.tx_explicit;
+ peer_info->manual_bind = txq_ctrl->hairpin_conf.manual_bind;
+ mlx5_txq_release(dev, peer_queue);
+ } else { /* Peer port used as ingress. */
+ struct mlx5_rxq_ctrl *rxq_ctrl;
+
+ rxq_ctrl = mlx5_rxq_get(dev, peer_queue);
+ if (rxq_ctrl == NULL) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "Failed to get port %u Rx queue %d",
+ dev->data->port_id, peer_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->type != MLX5_RXQ_TYPE_HAIRPIN) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d is not a hairpin Rxq",
+ dev->data->port_id, peer_queue);
+ mlx5_rxq_release(dev, peer_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->obj == NULL || rxq_ctrl->obj->rq == NULL) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "port %u no Rxq object found: %d",
+ dev->data->port_id, peer_queue);
+ mlx5_rxq_release(dev, peer_queue);
+ return -rte_errno;
+ }
+ peer_info->qp_id = rxq_ctrl->obj->rq->id;
+ peer_info->vhca_id = priv->config.hca_attr.vhca_id;
+ peer_info->peer_q = rxq_ctrl->hairpin_conf.peers[0].queue;
+ peer_info->tx_explicit = rxq_ctrl->hairpin_conf.tx_explicit;
+ peer_info->manual_bind = rxq_ctrl->hairpin_conf.manual_bind;
+ mlx5_rxq_release(dev, peer_queue);
+ }
+ return 0;
+}
+
+/*
+ * Bind the hairpin queue with the peer HW information.
+ * This needs to be called twice both for Tx and Rx queues of a pair.
+ * If the queue is already bound, it is considered successful.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param cur_queue
+ * Index of the queue to change the HW configuration to bind.
+ * @param peer_info
+ * Pointer to information of the peer queue.
+ * @param direction
+ * Positive to configure the TxQ, zero to configure the RxQ.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_hairpin_queue_peer_bind(struct rte_eth_dev *dev, uint16_t cur_queue,
+ struct rte_hairpin_peer_info *peer_info,
+ uint32_t direction)
+{
+ int ret = 0;
+
+ /*
+ * Consistency checking of the peer queue: opposite direction is used
+ * to get the peer queue info with ethdev port ID, no need to check.
+ */
+ if (peer_info->peer_q != cur_queue) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d and peer queue %d mismatch",
+ dev->data->port_id, cur_queue, peer_info->peer_q);
+ return -rte_errno;
+ }
+ if (direction != 0) {
+ struct mlx5_txq_ctrl *txq_ctrl;
+ struct mlx5_devx_modify_sq_attr sq_attr = { 0 };
+
+ txq_ctrl = mlx5_txq_get(dev, cur_queue);
+ if (txq_ctrl == NULL) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "Failed to get port %u Tx queue %d",
+ dev->data->port_id, cur_queue);
+ return -rte_errno;
+ }
+ if (txq_ctrl->type != MLX5_TXQ_TYPE_HAIRPIN) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d not a hairpin Txq",
+ dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (txq_ctrl->obj == NULL || txq_ctrl->obj->sq == NULL) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "port %u no Txq object found: %d",
+ dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (txq_ctrl->hairpin_status != 0) {
+ DRV_LOG(DEBUG, "port %u Tx queue %d is already bound",
+ dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return 0;
+ }
+ /*
+ * All queues' of one port consistency checking is done in the
+ * bind() function, and that is optional.
+ */
+ if (peer_info->tx_explicit !=
+ txq_ctrl->hairpin_conf.tx_explicit) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u Tx queue %d and peer Tx rule mode"
+ " mismatch", dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (peer_info->manual_bind !=
+ txq_ctrl->hairpin_conf.manual_bind) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u Tx queue %d and peer binding mode"
+ " mismatch", dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ sq_attr.state = MLX5_SQC_STATE_RDY;
+ sq_attr.sq_state = MLX5_SQC_STATE_RST;
+ sq_attr.hairpin_peer_rq = peer_info->qp_id;
+ sq_attr.hairpin_peer_vhca = peer_info->vhca_id;
+ ret = mlx5_devx_cmd_modify_sq(txq_ctrl->obj->sq, &sq_attr);
+ if (ret == 0)
+ txq_ctrl->hairpin_status = 1;
+ mlx5_txq_release(dev, cur_queue);
+ } else {
+ struct mlx5_rxq_ctrl *rxq_ctrl;
+ struct mlx5_devx_modify_rq_attr rq_attr = { 0 };
+
+ rxq_ctrl = mlx5_rxq_get(dev, cur_queue);
+ if (rxq_ctrl == NULL) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "Failed to get port %u Rx queue %d",
+ dev->data->port_id, cur_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->type != MLX5_RXQ_TYPE_HAIRPIN) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d not a hairpin Rxq",
+ dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->obj == NULL || rxq_ctrl->obj->rq == NULL) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "port %u no Rxq object found: %d",
+ dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->hairpin_status != 0) {
+ DRV_LOG(DEBUG, "port %u Rx queue %d is already bound",
+ dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return 0;
+ }
+ if (peer_info->tx_explicit !=
+ rxq_ctrl->hairpin_conf.tx_explicit) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u Rx queue %d and peer Tx rule mode"
+ " mismatch", dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (peer_info->manual_bind !=
+ rxq_ctrl->hairpin_conf.manual_bind) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u Rx queue %d and peer binding mode"
+ " mismatch", dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ rq_attr.state = MLX5_SQC_STATE_RDY;
+ rq_attr.rq_state = MLX5_SQC_STATE_RST;
+ rq_attr.hairpin_peer_sq = peer_info->qp_id;
+ rq_attr.hairpin_peer_vhca = peer_info->vhca_id;
+ ret = mlx5_devx_cmd_modify_rq(rxq_ctrl->obj->rq, &rq_attr);
+ if (ret == 0)
+ rxq_ctrl->hairpin_status = 1;
+ mlx5_rxq_release(dev, cur_queue);
+ }
+ return ret;
+}
+
+/*
+ * Unbind the hairpin queue and reset its HW configuration.
+ * This needs to be called twice both for Tx and Rx queues of a pair.
+ * If the queue is already unbound, it is considered successful.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param cur_queue
+ * Index of the queue to change the HW configuration to unbind.
+ * @param direction
+ * Positive to reset the TxQ, zero to reset the RxQ.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_hairpin_queue_peer_unbind(struct rte_eth_dev *dev, uint16_t cur_queue,
+ uint32_t direction)
+{
+ int ret = 0;
+
+ if (direction != 0) {
+ struct mlx5_txq_ctrl *txq_ctrl;
+ struct mlx5_devx_modify_sq_attr sq_attr = { 0 };
+
+ txq_ctrl = mlx5_txq_get(dev, cur_queue);
+ if (txq_ctrl == NULL) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "Failed to get port %u Tx queue %d",
+ dev->data->port_id, cur_queue);
+ return -rte_errno;
+ }
+ if (txq_ctrl->type != MLX5_TXQ_TYPE_HAIRPIN) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d not a hairpin Txq",
+ dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ /* Already unbound, return success before obj checking. */
+ if (txq_ctrl->hairpin_status == 0) {
+ DRV_LOG(DEBUG, "port %u Tx queue %d is already unbound",
+ dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return 0;
+ }
+ if (!txq_ctrl->obj || !txq_ctrl->obj->sq) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "port %u no Txq object found: %d",
+ dev->data->port_id, cur_queue);
+ mlx5_txq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ sq_attr.state = MLX5_SQC_STATE_RST;
+ sq_attr.sq_state = MLX5_SQC_STATE_RST;
+ ret = mlx5_devx_cmd_modify_sq(txq_ctrl->obj->sq, &sq_attr);
+ if (ret == 0)
+ txq_ctrl->hairpin_status = 0;
+ mlx5_txq_release(dev, cur_queue);
+ } else {
+ struct mlx5_rxq_ctrl *rxq_ctrl;
+ struct mlx5_devx_modify_rq_attr rq_attr = { 0 };
+
+ rxq_ctrl = mlx5_rxq_get(dev, cur_queue);
+ if (rxq_ctrl == NULL) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "Failed to get port %u Rx queue %d",
+ dev->data->port_id, cur_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->type != MLX5_RXQ_TYPE_HAIRPIN) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d not a hairpin Rxq",
+ dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ if (rxq_ctrl->hairpin_status == 0) {
+ DRV_LOG(DEBUG, "port %u Rx queue %d is already unbound",
+ dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return 0;
+ }
+ if (rxq_ctrl->obj == NULL || rxq_ctrl->obj->rq == NULL) {
+ rte_errno = ENOMEM;
+ DRV_LOG(ERR, "port %u no Rxq object found: %d",
+ dev->data->port_id, cur_queue);
+ mlx5_rxq_release(dev, cur_queue);
+ return -rte_errno;
+ }
+ rq_attr.state = MLX5_SQC_STATE_RST;
+ rq_attr.rq_state = MLX5_SQC_STATE_RST;
+ ret = mlx5_devx_cmd_modify_rq(rxq_ctrl->obj->rq, &rq_attr);
+ if (ret == 0)
+ rxq_ctrl->hairpin_status = 0;
+ mlx5_rxq_release(dev, cur_queue);
+ }
+ return ret;
+}
+
+/*
+ * Bind the hairpin port pairs, from the Tx to the peer Rx.
+ * This function only supports to bind the Tx to one Rx.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param rx_port
+ * Port identifier of the Rx port.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_hairpin_bind_single_port(struct rte_eth_dev *dev, uint16_t rx_port)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ int ret = 0;
+ struct mlx5_txq_ctrl *txq_ctrl;
+ uint32_t i;
+ struct rte_hairpin_peer_info peer = {0xffffff};
+ struct rte_hairpin_peer_info cur;
+ const struct rte_eth_hairpin_conf *conf;
+ uint16_t num_q = 0;
+ uint16_t local_port = priv->dev_data->port_id;
+ uint32_t manual;
+ uint32_t explicit;
+ uint16_t rx_queue;
+
+ if (mlx5_eth_find_next(rx_port, priv->pci_dev) != rx_port) {
+ rte_errno = ENODEV;
+ DRV_LOG(ERR, "Rx port %u does not belong to mlx5", rx_port);
+ return -rte_errno;
+ }
+ /*
+ * Before binding TxQ to peer RxQ, first round loop will be used for
+ * checking the queues' configuration consistency. This would be a
+ * little time consuming but better than doing the rollback.
+ */
+ for (i = 0; i != priv->txqs_n; i++) {
+ txq_ctrl = mlx5_txq_get(dev, i);
+ if (txq_ctrl == NULL)
+ continue;
+ if (txq_ctrl->type != MLX5_TXQ_TYPE_HAIRPIN) {
+ mlx5_txq_release(dev, i);
+ continue;
+ }
+ /*
+ * All hairpin Tx queues of a single port that connected to the
+ * same peer Rx port should have the same "auto binding" and
+ * "implicit Tx flow" modes.
+ * Peer consistency checking will be done in per queue binding.
+ */
+ conf = &txq_ctrl->hairpin_conf;
+ if (conf->peers[0].port == rx_port) {
+ if (num_q == 0) {
+ manual = conf->manual_bind;
+ explicit = conf->tx_explicit;
+ } else {
+ if (manual != conf->manual_bind ||
+ explicit != conf->tx_explicit) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u queue %d mode"
+ " mismatch: %u %u, %u %u",
+ local_port, i, manual,
+ conf->manual_bind, explicit,
+ conf->tx_explicit);
+ mlx5_txq_release(dev, i);
+ return -rte_errno;
+ }
+ }
+ num_q++;
+ }
+ mlx5_txq_release(dev, i);
+ }
+ /* Once no queue is configured, success is returned directly. */
+ if (num_q == 0)
+ return ret;
+ /* All the hairpin TX queues need to be traversed again. */
+ for (i = 0; i != priv->txqs_n; i++) {
+ txq_ctrl = mlx5_txq_get(dev, i);
+ if (txq_ctrl == NULL)
+ continue;
+ if (txq_ctrl->type != MLX5_TXQ_TYPE_HAIRPIN) {
+ mlx5_txq_release(dev, i);
+ continue;
+ }
+ if (txq_ctrl->hairpin_conf.peers[0].port != rx_port) {
+ mlx5_txq_release(dev, i);
+ continue;
+ }
+ rx_queue = txq_ctrl->hairpin_conf.peers[0].queue;
+ /*
+ * Fetch peer RxQ's information.
+ * No need to pass the information of the current queue.
+ */
+ ret = rte_eth_hairpin_queue_peer_update(rx_port, rx_queue,
+ NULL, &peer, 1);
+ if (ret != 0) {
+ mlx5_txq_release(dev, i);
+ goto error;
+ }
+ /* Accessing its own device, inside mlx5 PMD. */
+ ret = mlx5_hairpin_queue_peer_bind(dev, i, &peer, 1);
+ if (ret != 0) {
+ mlx5_txq_release(dev, i);
+ goto error;
+ }
+ /* Pass TxQ's information to peer RxQ and try binding. */
+ cur.peer_q = rx_queue;
+ cur.qp_id = txq_ctrl->obj->sq->id;
+ cur.vhca_id = priv->config.hca_attr.vhca_id;
+ cur.tx_explicit = txq_ctrl->hairpin_conf.tx_explicit;
+ cur.manual_bind = txq_ctrl->hairpin_conf.manual_bind;
+ /*
+ * In order to access another device in a proper way, RTE level
+ * private function is needed.
+ */
+ ret = rte_eth_hairpin_queue_peer_bind(rx_port, rx_queue,
+ &cur, 0);
+ if (ret != 0) {
+ mlx5_txq_release(dev, i);
+ goto error;
+ }
+ mlx5_txq_release(dev, i);
+ }
+ return 0;
+error:
+ /*
+ * Do roll-back process for the queues already bound.
+ * No need to check the return value of the queue unbind function.
+ */
+ do {
+ /* No validation is needed here. */
+ txq_ctrl = mlx5_txq_get(dev, i);
+ if (txq_ctrl == NULL)
+ continue;
+ rx_queue = txq_ctrl->hairpin_conf.peers[0].queue;
+ rte_eth_hairpin_queue_peer_unbind(rx_port, rx_queue, 0);
+ mlx5_hairpin_queue_peer_unbind(dev, i, 1);
+ mlx5_txq_release(dev, i);
+ } while (i--);
+ return ret;
+}
+
+/*
+ * Unbind the hairpin port pair, HW configuration of both devices will be clear
+ * and status will be reset for all the queues used between the them.
+ * This function only supports to unbind the Tx from one Rx.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ * @param rx_port
+ * Port identifier of the Rx port.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_hairpin_unbind_single_port(struct rte_eth_dev *dev, uint16_t rx_port)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_txq_ctrl *txq_ctrl;
+ uint32_t i;
+ int ret;
+ uint16_t cur_port = priv->dev_data->port_id;
+
+ if (mlx5_eth_find_next(rx_port, priv->pci_dev) != rx_port) {
+ rte_errno = ENODEV;
+ DRV_LOG(ERR, "Rx port %u does not belong to mlx5", rx_port);
+ return -rte_errno;
+ }
+ for (i = 0; i != priv->txqs_n; i++) {
+ uint16_t rx_queue;
+
+ txq_ctrl = mlx5_txq_get(dev, i);
+ if (txq_ctrl == NULL)
+ continue;
+ if (txq_ctrl->type != MLX5_TXQ_TYPE_HAIRPIN) {
+ mlx5_txq_release(dev, i);
+ continue;
+ }
+ if (txq_ctrl->hairpin_conf.peers[0].port != rx_port) {
+ mlx5_txq_release(dev, i);
+ continue;
+ }
+ /* Indeed, only the first used queue needs to be checked. */
+ if (txq_ctrl->hairpin_conf.manual_bind == 0) {
+ if (cur_port != rx_port) {
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u and port %u are in"
+ " auto-bind mode", cur_port, rx_port);
+ mlx5_txq_release(dev, i);
+ return -rte_errno;
+ } else {
+ return 0;
+ }
+ }
+ rx_queue = txq_ctrl->hairpin_conf.peers[0].queue;
+ mlx5_txq_release(dev, i);
+ ret = rte_eth_hairpin_queue_peer_unbind(rx_port, rx_queue, 0);
+ if (ret) {
+ DRV_LOG(ERR, "port %u Rx queue %d unbind - failure",
+ rx_port, rx_queue);
+ return ret;
+ }
+ ret = mlx5_hairpin_queue_peer_unbind(dev, i, 1);
+ if (ret) {
+ DRV_LOG(ERR, "port %u Tx queue %d unbind - failure",
+ cur_port, i);
+ return ret;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Bind hairpin ports, Rx could be all ports when using RTE_MAX_ETHPORTS.
+ * @see mlx5_hairpin_bind_single_port()
+ */
+int
+mlx5_hairpin_bind(struct rte_eth_dev *dev, uint16_t rx_port)
+{
+ int ret = 0;
+ uint16_t p, pp;
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ /*
+ * If the Rx port has no hairpin configuration with the current port,
+ * the binding will be skipped in the called function of single port.
+ * Device started status will be checked only before the queue
+ * information updating.
+ */
+ if (rx_port == RTE_MAX_ETHPORTS) {
+ MLX5_ETH_FOREACH_DEV(p, priv->pci_dev) {
+ ret = mlx5_hairpin_bind_single_port(dev, p);
+ if (ret != 0)
+ goto unbind;
+ }
+ return ret;
+ } else {
+ return mlx5_hairpin_bind_single_port(dev, rx_port);
+ }
+unbind:
+ MLX5_ETH_FOREACH_DEV(pp, priv->pci_dev)
+ if (pp < p)
+ mlx5_hairpin_unbind_single_port(dev, pp);
+ return ret;
+}
+
+/*
+ * Unbind hairpin ports, Rx could be all ports when using RTE_MAX_ETHPORTS.
+ * @see mlx5_hairpin_unbind_single_port()
+ */
+int
+mlx5_hairpin_unbind(struct rte_eth_dev *dev, uint16_t rx_port)
+{
+ int ret = 0;
+ uint16_t p;
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ if (rx_port == RTE_MAX_ETHPORTS)
+ MLX5_ETH_FOREACH_DEV(p, priv->pci_dev) {
+ ret = mlx5_hairpin_unbind_single_port(dev, p);
+ if (ret != 0)
+ return ret;
+ }
+ else
+ ret = mlx5_hairpin_bind_single_port(dev, rx_port);
+ return ret;
+}
+
/**
* DPDK callback to start the device.
*
dev->data->port_id, strerror(rte_errno));
goto error;
}
- ret = mlx5_hairpin_bind(dev);
+ ret = mlx5_hairpin_auto_bind(dev);
if (ret) {
DRV_LOG(ERR, "port %u hairpin binding failed: %s",
dev->data->port_id, strerror(rte_errno));
git.droids-corp.org / dpdk.git / commitdiff