-/*-
- * BSD LICENSE
- *
- * Copyright 2015 6WIND S.A.
- * Copyright 2015 Mellanox.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of 6WIND S.A. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2015 6WIND S.A.
+ * Copyright 2015 Mellanox.
*/
-/* DPDK headers don't like -pedantic. */
-#ifdef PEDANTIC
-#pragma GCC diagnostic ignored "-pedantic"
-#endif
+#include <unistd.h>
+
#include <rte_ether.h>
-#include <rte_ethdev.h>
-#ifdef PEDANTIC
-#pragma GCC diagnostic error "-pedantic"
-#endif
+#include <rte_ethdev_driver.h>
+#include <rte_interrupts.h>
+#include <rte_alarm.h>
#include "mlx5.h"
#include "mlx5_rxtx.h"
#include "mlx5_utils.h"
+/**
+ * Stop traffic on Tx queues.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+static void
+mlx5_txq_stop(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+ unsigned int i;
+
+ for (i = 0; i != priv->txqs_n; ++i)
+ mlx5_txq_release(dev, i);
+}
+
+/**
+ * Start traffic on Tx queues.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_txq_start(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+ unsigned int i;
+ int ret;
+
+ /* Add memory regions to Tx queues. */
+ for (i = 0; i != priv->txqs_n; ++i) {
+ unsigned int idx = 0;
+ struct mlx5_mr *mr;
+ struct mlx5_txq_ctrl *txq_ctrl = mlx5_txq_get(dev, i);
+
+ if (!txq_ctrl)
+ continue;
+ LIST_FOREACH(mr, &priv->mr, next) {
+ mlx5_txq_mp2mr_reg(&txq_ctrl->txq, mr->mp, idx++);
+ if (idx == MLX5_PMD_TX_MP_CACHE)
+ break;
+ }
+ txq_alloc_elts(txq_ctrl);
+ txq_ctrl->ibv = mlx5_txq_ibv_new(dev, i);
+ if (!txq_ctrl->ibv) {
+ rte_errno = ENOMEM;
+ goto error;
+ }
+ }
+ ret = mlx5_tx_uar_remap(dev, priv->ctx->cmd_fd);
+ if (ret)
+ goto error;
+ return 0;
+error:
+ ret = rte_errno; /* Save rte_errno before cleanup. */
+ mlx5_txq_stop(dev);
+ rte_errno = ret; /* Restore rte_errno. */
+ return -rte_errno;
+}
+
+/**
+ * Stop traffic on Rx queues.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ */
+static void
+mlx5_rxq_stop(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+ unsigned int i;
+
+ for (i = 0; i != priv->rxqs_n; ++i)
+ mlx5_rxq_release(dev, i);
+}
+
+/**
+ * Start traffic on Rx queues.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_rxq_start(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+ unsigned int i;
+ int ret = 0;
+
+ for (i = 0; i != priv->rxqs_n; ++i) {
+ struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
+
+ if (!rxq_ctrl)
+ continue;
+ ret = rxq_alloc_elts(rxq_ctrl);
+ if (ret)
+ goto error;
+ rxq_ctrl->ibv = mlx5_rxq_ibv_new(dev, i);
+ if (!rxq_ctrl->ibv)
+ goto error;
+ }
+ return 0;
+error:
+ ret = rte_errno; /* Save rte_errno before cleanup. */
+ mlx5_rxq_stop(dev);
+ rte_errno = ret; /* Restore rte_errno. */
+ return -rte_errno;
+}
+
/**
* DPDK callback to start the device.
*
* Pointer to Ethernet device structure.
*
* @return
- * 0 on success, negative errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_start(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
- int err;
+ struct mlx5_mr *mr = NULL;
+ int ret;
- priv_lock(priv);
- if (priv->started) {
- priv_unlock(priv);
- return 0;
+ dev->data->dev_started = 1;
+ ret = mlx5_flow_create_drop_queue(dev);
+ if (ret) {
+ DRV_LOG(ERR, "port %u drop queue allocation failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ goto error;
}
- DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
- err = priv_create_hash_rxqs(priv);
- if (!err)
- err = priv_mac_addrs_enable(priv);
- if (!err && priv->promisc_req)
- err = priv_promiscuous_enable(priv);
- if (!err && priv->allmulti_req)
- err = priv_allmulticast_enable(priv);
- if (!err)
- priv->started = 1;
- else {
- ERROR("%p: an error occurred while configuring hash RX queues:"
- " %s",
- (void *)priv, strerror(err));
- /* Rollback. */
- priv_allmulticast_disable(priv);
- priv_promiscuous_disable(priv);
- priv_mac_addrs_disable(priv);
- priv_destroy_hash_rxqs(priv);
+ DRV_LOG(DEBUG, "port %u allocating and configuring hash Rx queues",
+ dev->data->port_id);
+ rte_mempool_walk(mlx5_mp2mr_iter, priv);
+ ret = mlx5_txq_start(dev);
+ if (ret) {
+ DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ goto error;
}
- priv_unlock(priv);
- return -err;
+ ret = mlx5_rxq_start(dev);
+ if (ret) {
+ DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ goto error;
+ }
+ ret = mlx5_rx_intr_vec_enable(dev);
+ if (ret) {
+ DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
+ dev->data->port_id);
+ goto error;
+ }
+ mlx5_xstats_init(dev);
+ ret = mlx5_traffic_enable(dev);
+ if (ret) {
+ DRV_LOG(DEBUG, "port %u failed to set defaults flows",
+ dev->data->port_id);
+ goto error;
+ }
+ ret = mlx5_flow_start(dev, &priv->flows);
+ if (ret) {
+ DRV_LOG(DEBUG, "port %u failed to set flows",
+ dev->data->port_id);
+ goto error;
+ }
+ dev->tx_pkt_burst = mlx5_select_tx_function(dev);
+ dev->rx_pkt_burst = mlx5_select_rx_function(dev);
+ mlx5_dev_interrupt_handler_install(dev);
+ return 0;
+error:
+ ret = rte_errno; /* Save rte_errno before cleanup. */
+ /* Rollback. */
+ dev->data->dev_started = 0;
+ for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
+ mlx5_mr_release(mr);
+ mlx5_flow_stop(dev, &priv->flows);
+ mlx5_traffic_disable(dev);
+ mlx5_txq_stop(dev);
+ mlx5_rxq_stop(dev);
+ mlx5_flow_delete_drop_queue(dev);
+ rte_errno = ret; /* Restore rte_errno. */
+ return -rte_errno;
}
/**
mlx5_dev_stop(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
+ struct mlx5_mr *mr;
+
+ dev->data->dev_started = 0;
+ /* Prevent crashes when queues are still in use. */
+ dev->rx_pkt_burst = removed_rx_burst;
+ dev->tx_pkt_burst = removed_tx_burst;
+ rte_wmb();
+ usleep(1000 * priv->rxqs_n);
+ DRV_LOG(DEBUG, "port %u cleaning up and destroying hash Rx queues",
+ dev->data->port_id);
+ mlx5_flow_stop(dev, &priv->flows);
+ mlx5_traffic_disable(dev);
+ mlx5_rx_intr_vec_disable(dev);
+ mlx5_dev_interrupt_handler_uninstall(dev);
+ mlx5_txq_stop(dev);
+ mlx5_rxq_stop(dev);
+ for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
+ mlx5_mr_release(mr);
+ mlx5_flow_delete_drop_queue(dev);
+}
+
+/**
+ * Enable traffic flows configured by control plane
+ *
+ * @param dev
+ * Pointer to Ethernet device private data.
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_traffic_enable(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+ struct rte_flow_item_eth bcast = {
+ .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
+ };
+ struct rte_flow_item_eth ipv6_multi_spec = {
+ .dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
+ };
+ struct rte_flow_item_eth ipv6_multi_mask = {
+ .dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
+ };
+ struct rte_flow_item_eth unicast = {
+ .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
+ };
+ struct rte_flow_item_eth unicast_mask = {
+ .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
+ };
+ const unsigned int vlan_filter_n = priv->vlan_filter_n;
+ const struct ether_addr cmp = {
+ .addr_bytes = "\x00\x00\x00\x00\x00\x00",
+ };
+ unsigned int i;
+ unsigned int j;
+ int ret;
+
+ if (priv->isolated)
+ return 0;
+ if (dev->data->promiscuous) {
+ struct rte_flow_item_eth promisc = {
+ .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
+ .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
+ .type = 0,
+ };
+
+ ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
+ if (ret)
+ goto error;
+ }
+ if (dev->data->all_multicast) {
+ struct rte_flow_item_eth multicast = {
+ .dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
+ .src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
+ .type = 0,
+ };
+
+ ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
+ if (ret)
+ goto error;
+ } else {
+ /* Add broadcast/multicast flows. */
+ for (i = 0; i != vlan_filter_n; ++i) {
+ uint16_t vlan = priv->vlan_filter[i];
+
+ struct rte_flow_item_vlan vlan_spec = {
+ .tci = rte_cpu_to_be_16(vlan),
+ };
+ struct rte_flow_item_vlan vlan_mask = {
+ .tci = 0xffff,
+ };
+
+ ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
+ &vlan_spec, &vlan_mask);
+ if (ret)
+ goto error;
+ ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
+ &ipv6_multi_mask,
+ &vlan_spec, &vlan_mask);
+ if (ret)
+ goto error;
+ }
+ if (!vlan_filter_n) {
+ ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
+ if (ret)
+ goto error;
+ ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
+ &ipv6_multi_mask);
+ if (ret)
+ goto error;
+ }
+ }
+ /* Add MAC address flows. */
+ for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
+ struct ether_addr *mac = &dev->data->mac_addrs[i];
+
+ if (!memcmp(mac, &cmp, sizeof(*mac)))
+ continue;
+ memcpy(&unicast.dst.addr_bytes,
+ mac->addr_bytes,
+ ETHER_ADDR_LEN);
+ for (j = 0; j != vlan_filter_n; ++j) {
+ uint16_t vlan = priv->vlan_filter[j];
+
+ struct rte_flow_item_vlan vlan_spec = {
+ .tci = rte_cpu_to_be_16(vlan),
+ };
+ struct rte_flow_item_vlan vlan_mask = {
+ .tci = 0xffff,
+ };
+
+ ret = mlx5_ctrl_flow_vlan(dev, &unicast,
+ &unicast_mask,
+ &vlan_spec,
+ &vlan_mask);
+ if (ret)
+ goto error;
+ }
+ if (!vlan_filter_n) {
+ ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
+ if (ret)
+ goto error;
+ }
+ }
+ return 0;
+error:
+ ret = rte_errno; /* Save rte_errno before cleanup. */
+ mlx5_flow_list_flush(dev, &priv->ctrl_flows);
+ rte_errno = ret; /* Restore rte_errno. */
+ return -rte_errno;
+}
+
+
+/**
+ * Disable traffic flows configured by control plane
+ *
+ * @param dev
+ * Pointer to Ethernet device private data.
+ */
+void
+mlx5_traffic_disable(struct rte_eth_dev *dev)
+{
+ struct priv *priv = dev->data->dev_private;
+
+ mlx5_flow_list_flush(dev, &priv->ctrl_flows);
+}
- priv_lock(priv);
- if (!priv->started) {
- priv_unlock(priv);
- return;
+/**
+ * Restart traffic flows configured by control plane
+ *
+ * @param dev
+ * Pointer to Ethernet device private data.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_traffic_restart(struct rte_eth_dev *dev)
+{
+ if (dev->data->dev_started) {
+ mlx5_traffic_disable(dev);
+ return mlx5_traffic_enable(dev);
}
- DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
- priv_allmulticast_disable(priv);
- priv_promiscuous_disable(priv);
- priv_mac_addrs_disable(priv);
- priv_destroy_hash_rxqs(priv);
- priv->started = 0;
- priv_unlock(priv);
+ return 0;
}
git.droids-corp.org / dpdk.git / blobdiff