8fd92a66c6
Signed-off-by: Olivier Matz <olivier.matz@6wind.com> Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Thomas Monjalon <thomas@monjalon.net>
390 lines
8.5 KiB
C
390 lines
8.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2015 6WIND S.A.
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* Copyright 2015 Mellanox.
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*/
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#include <unistd.h>
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#include <rte_ether.h>
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#include <rte_ethdev_driver.h>
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#include <rte_interrupts.h>
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#include <rte_alarm.h>
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#include "mlx5.h"
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#include "mlx5_rxtx.h"
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#include "mlx5_utils.h"
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static void
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priv_txq_stop(struct priv *priv)
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{
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unsigned int i;
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for (i = 0; i != priv->txqs_n; ++i)
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mlx5_priv_txq_release(priv, i);
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}
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static int
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priv_txq_start(struct priv *priv)
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{
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unsigned int i;
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int ret = 0;
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/* Add memory regions to Tx queues. */
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for (i = 0; i != priv->txqs_n; ++i) {
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unsigned int idx = 0;
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struct mlx5_mr *mr;
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struct mlx5_txq_ctrl *txq_ctrl = mlx5_priv_txq_get(priv, i);
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if (!txq_ctrl)
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continue;
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LIST_FOREACH(mr, &priv->mr, next) {
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priv_txq_mp2mr_reg(priv, &txq_ctrl->txq, mr->mp, idx++);
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if (idx == MLX5_PMD_TX_MP_CACHE)
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break;
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}
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txq_alloc_elts(txq_ctrl);
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txq_ctrl->ibv = mlx5_priv_txq_ibv_new(priv, i);
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if (!txq_ctrl->ibv) {
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ret = ENOMEM;
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goto error;
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}
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}
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ret = priv_tx_uar_remap(priv, priv->ctx->cmd_fd);
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if (ret)
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goto error;
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return ret;
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error:
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priv_txq_stop(priv);
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return ret;
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}
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static void
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priv_rxq_stop(struct priv *priv)
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{
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unsigned int i;
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for (i = 0; i != priv->rxqs_n; ++i)
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mlx5_priv_rxq_release(priv, i);
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}
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static int
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priv_rxq_start(struct priv *priv)
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{
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unsigned int i;
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int ret = 0;
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for (i = 0; i != priv->rxqs_n; ++i) {
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struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_priv_rxq_get(priv, i);
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if (!rxq_ctrl)
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continue;
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ret = rxq_alloc_elts(rxq_ctrl);
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if (ret)
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goto error;
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rxq_ctrl->ibv = mlx5_priv_rxq_ibv_new(priv, i);
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if (!rxq_ctrl->ibv) {
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ret = ENOMEM;
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goto error;
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}
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}
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return -ret;
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error:
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priv_rxq_stop(priv);
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return -ret;
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}
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/**
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* DPDK callback to start the device.
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*
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* Simulate device start by attaching all configured flows.
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*
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* @param dev
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* Pointer to Ethernet device structure.
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*
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* @return
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* 0 on success, negative errno value on failure.
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*/
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int
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mlx5_dev_start(struct rte_eth_dev *dev)
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{
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struct priv *priv = dev->data->dev_private;
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struct mlx5_mr *mr = NULL;
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int err;
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dev->data->dev_started = 1;
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priv_lock(priv);
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err = priv_flow_create_drop_queue(priv);
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if (err) {
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ERROR("%p: Drop queue allocation failed: %s",
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(void *)dev, strerror(err));
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goto error;
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}
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DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
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rte_mempool_walk(mlx5_mp2mr_iter, priv);
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err = priv_txq_start(priv);
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if (err) {
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ERROR("%p: TXQ allocation failed: %s",
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(void *)dev, strerror(err));
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goto error;
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}
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err = priv_rxq_start(priv);
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if (err) {
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ERROR("%p: RXQ allocation failed: %s",
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(void *)dev, strerror(err));
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goto error;
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}
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err = priv_rx_intr_vec_enable(priv);
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if (err) {
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ERROR("%p: RX interrupt vector creation failed",
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(void *)priv);
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goto error;
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}
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priv_xstats_init(priv);
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/* Update link status and Tx/Rx callbacks for the first time. */
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memset(&dev->data->dev_link, 0, sizeof(struct rte_eth_link));
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INFO("Forcing port %u link to be up", dev->data->port_id);
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err = priv_force_link_status_change(priv, ETH_LINK_UP);
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if (err) {
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DEBUG("Failed to set port %u link to be up",
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dev->data->port_id);
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goto error;
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}
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priv_dev_interrupt_handler_install(priv, dev);
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priv_unlock(priv);
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return 0;
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error:
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/* Rollback. */
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dev->data->dev_started = 0;
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for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
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priv_mr_release(priv, mr);
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priv_flow_stop(priv, &priv->flows);
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priv_dev_traffic_disable(priv, dev);
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priv_txq_stop(priv);
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priv_rxq_stop(priv);
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priv_flow_delete_drop_queue(priv);
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priv_unlock(priv);
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return err;
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}
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/**
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* DPDK callback to stop the device.
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*
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* Simulate device stop by detaching all configured flows.
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*
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* @param dev
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* Pointer to Ethernet device structure.
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*/
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void
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mlx5_dev_stop(struct rte_eth_dev *dev)
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{
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struct priv *priv = dev->data->dev_private;
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struct mlx5_mr *mr;
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priv_lock(priv);
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dev->data->dev_started = 0;
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/* Prevent crashes when queues are still in use. */
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dev->rx_pkt_burst = removed_rx_burst;
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dev->tx_pkt_burst = removed_tx_burst;
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rte_wmb();
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usleep(1000 * priv->rxqs_n);
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DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
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priv_flow_stop(priv, &priv->flows);
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priv_dev_traffic_disable(priv, dev);
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priv_rx_intr_vec_disable(priv);
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priv_dev_interrupt_handler_uninstall(priv, dev);
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priv_txq_stop(priv);
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priv_rxq_stop(priv);
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for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
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priv_mr_release(priv, mr);
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priv_flow_delete_drop_queue(priv);
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priv_unlock(priv);
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}
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/**
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* Enable traffic flows configured by control plane
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*
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* @param priv
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* Pointer to Ethernet device private data.
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* @param dev
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* Pointer to Ethernet device structure.
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*
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* @return
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* 0 on success.
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*/
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int
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priv_dev_traffic_enable(struct priv *priv, struct rte_eth_dev *dev)
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{
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struct rte_flow_item_eth bcast = {
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.dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
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};
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struct rte_flow_item_eth ipv6_multi_spec = {
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.dst.addr_bytes = "\x33\x33\x00\x00\x00\x00",
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};
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struct rte_flow_item_eth ipv6_multi_mask = {
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.dst.addr_bytes = "\xff\xff\x00\x00\x00\x00",
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};
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struct rte_flow_item_eth unicast = {
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.src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
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};
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struct rte_flow_item_eth unicast_mask = {
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.dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
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};
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const unsigned int vlan_filter_n = priv->vlan_filter_n;
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const struct ether_addr cmp = {
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.addr_bytes = "\x00\x00\x00\x00\x00\x00",
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};
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unsigned int i;
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unsigned int j;
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int ret;
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if (priv->isolated)
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return 0;
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if (dev->data->promiscuous) {
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struct rte_flow_item_eth promisc = {
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.dst.addr_bytes = "\x00\x00\x00\x00\x00\x00",
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.src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
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.type = 0,
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};
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claim_zero(mlx5_ctrl_flow(dev, &promisc, &promisc));
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return 0;
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}
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if (dev->data->all_multicast) {
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struct rte_flow_item_eth multicast = {
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.dst.addr_bytes = "\x01\x00\x00\x00\x00\x00",
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.src.addr_bytes = "\x00\x00\x00\x00\x00\x00",
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.type = 0,
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};
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claim_zero(mlx5_ctrl_flow(dev, &multicast, &multicast));
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} else {
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/* Add broadcast/multicast flows. */
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for (i = 0; i != vlan_filter_n; ++i) {
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uint16_t vlan = priv->vlan_filter[i];
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struct rte_flow_item_vlan vlan_spec = {
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.tci = rte_cpu_to_be_16(vlan),
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};
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struct rte_flow_item_vlan vlan_mask = {
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.tci = 0xffff,
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};
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ret = mlx5_ctrl_flow_vlan(dev, &bcast, &bcast,
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&vlan_spec, &vlan_mask);
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if (ret)
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goto error;
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ret = mlx5_ctrl_flow_vlan(dev, &ipv6_multi_spec,
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&ipv6_multi_mask,
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&vlan_spec, &vlan_mask);
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if (ret)
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goto error;
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}
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if (!vlan_filter_n) {
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ret = mlx5_ctrl_flow(dev, &bcast, &bcast);
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if (ret)
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goto error;
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ret = mlx5_ctrl_flow(dev, &ipv6_multi_spec,
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&ipv6_multi_mask);
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if (ret)
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goto error;
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}
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}
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/* Add MAC address flows. */
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for (i = 0; i != MLX5_MAX_MAC_ADDRESSES; ++i) {
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struct ether_addr *mac = &dev->data->mac_addrs[i];
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if (!memcmp(mac, &cmp, sizeof(*mac)))
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continue;
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memcpy(&unicast.dst.addr_bytes,
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mac->addr_bytes,
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ETHER_ADDR_LEN);
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for (j = 0; j != vlan_filter_n; ++j) {
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uint16_t vlan = priv->vlan_filter[j];
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struct rte_flow_item_vlan vlan_spec = {
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.tci = rte_cpu_to_be_16(vlan),
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};
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struct rte_flow_item_vlan vlan_mask = {
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.tci = 0xffff,
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};
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ret = mlx5_ctrl_flow_vlan(dev, &unicast,
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&unicast_mask,
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&vlan_spec,
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&vlan_mask);
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if (ret)
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goto error;
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}
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if (!vlan_filter_n) {
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ret = mlx5_ctrl_flow(dev, &unicast,
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&unicast_mask);
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if (ret)
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goto error;
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}
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}
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return 0;
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error:
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return rte_errno;
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}
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/**
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* Disable traffic flows configured by control plane
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*
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* @param priv
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* Pointer to Ethernet device private data.
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* @param dev
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* Pointer to Ethernet device structure.
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*
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* @return
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* 0 on success.
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*/
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int
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priv_dev_traffic_disable(struct priv *priv, struct rte_eth_dev *dev)
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{
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(void)dev;
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priv_flow_flush(priv, &priv->ctrl_flows);
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return 0;
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}
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/**
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* Restart traffic flows configured by control plane
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*
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* @param priv
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* Pointer to Ethernet device private data.
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* @param dev
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* Pointer to Ethernet device structure.
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*
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* @return
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* 0 on success.
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*/
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int
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priv_dev_traffic_restart(struct priv *priv, struct rte_eth_dev *dev)
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{
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if (dev->data->dev_started) {
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priv_dev_traffic_disable(priv, dev);
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priv_dev_traffic_enable(priv, dev);
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}
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return 0;
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}
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/**
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* Restart traffic flows configured by control plane
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*
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* @param dev
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* Pointer to Ethernet device structure.
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*
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* @return
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* 0 on success.
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*/
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int
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mlx5_traffic_restart(struct rte_eth_dev *dev)
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{
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struct priv *priv = dev->data->dev_private;
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priv_lock(priv);
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priv_dev_traffic_restart(priv, dev);
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priv_unlock(priv);
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return 0;
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}
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