* Copyright 2019 Mellanox Technologies, Ltd
*/
-#include <assert.h>
#include <stdio.h>
#include <time.h>
#include <rte_ethdev_driver.h>
#include <rte_string_fns.h>
+#include <mlx5_common_mp.h>
+#include <mlx5_common_mr.h>
+
#include "mlx5.h"
+#include "mlx5_rxtx.h"
#include "mlx5_utils.h"
-/**
- * Initialize IPC message.
- *
- * @param[in] dev
- * Pointer to Ethernet structure.
- * @param[out] msg
- * Pointer to message to fill in.
- * @param[in] type
- * Message type.
- */
-static inline void
-mp_init_msg(struct rte_eth_dev *dev, struct rte_mp_msg *msg,
- enum mlx5_mp_req_type type)
+int
+mlx5_mp_primary_handle(const struct rte_mp_msg *mp_msg, const void *peer)
{
- struct mlx5_mp_param *param = (struct mlx5_mp_param *)msg->param;
+ struct rte_mp_msg mp_res;
+ struct mlx5_mp_param *res = (struct mlx5_mp_param *)mp_res.param;
+ const struct mlx5_mp_param *param =
+ (const struct mlx5_mp_param *)mp_msg->param;
+ struct rte_eth_dev *dev;
+ struct mlx5_priv *priv;
+ struct mr_cache_entry entry;
+ uint32_t lkey;
+ int ret;
- memset(msg, 0, sizeof(*msg));
- strlcpy(msg->name, MLX5_MP_NAME, sizeof(msg->name));
- msg->len_param = sizeof(*param);
- param->type = type;
- param->port_id = dev->data->port_id;
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ if (!rte_eth_dev_is_valid_port(param->port_id)) {
+ rte_errno = ENODEV;
+ DRV_LOG(ERR, "port %u invalid port ID", param->port_id);
+ return -rte_errno;
+ }
+ dev = &rte_eth_devices[param->port_id];
+ priv = dev->data->dev_private;
+ switch (param->type) {
+ case MLX5_MP_REQ_CREATE_MR:
+ mp_init_msg(&priv->mp_id, &mp_res, param->type);
+ lkey = mlx5_mr_create_primary(priv->sh->pd,
+ &priv->sh->share_cache,
+ &entry, param->args.addr,
+ priv->config.mr_ext_memseg_en);
+ if (lkey == UINT32_MAX)
+ res->result = -rte_errno;
+ ret = rte_mp_reply(&mp_res, peer);
+ break;
+ case MLX5_MP_REQ_VERBS_CMD_FD:
+ mp_init_msg(&priv->mp_id, &mp_res, param->type);
+ mp_res.num_fds = 1;
+ mp_res.fds[0] = ((struct ibv_context *)priv->sh->ctx)->cmd_fd;
+ res->result = 0;
+ ret = rte_mp_reply(&mp_res, peer);
+ break;
+ case MLX5_MP_REQ_QUEUE_STATE_MODIFY:
+ mp_init_msg(&priv->mp_id, &mp_res, param->type);
+ res->result = mlx5_queue_state_modify_primary
+ (dev, ¶m->args.state_modify);
+ ret = rte_mp_reply(&mp_res, peer);
+ break;
+ default:
+ rte_errno = EINVAL;
+ DRV_LOG(ERR, "port %u invalid mp request type",
+ dev->data->port_id);
+ return -rte_errno;
+ }
+ return ret;
}
/**
- * IPC message handler of primary process.
+ * IPC message handler of a secondary process.
*
* @param[in] dev
* Pointer to Ethernet structure.
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
-static int
-mp_primary_handle(const struct rte_mp_msg *mp_msg, const void *peer)
+int
+mlx5_mp_secondary_handle(const struct rte_mp_msg *mp_msg, const void *peer)
{
struct rte_mp_msg mp_res;
struct mlx5_mp_param *res = (struct mlx5_mp_param *)mp_res.param;
struct mlx5_priv *priv;
int ret;
- assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_SECONDARY);
if (!rte_eth_dev_is_valid_port(param->port_id)) {
rte_errno = ENODEV;
DRV_LOG(ERR, "port %u invalid port ID", param->port_id);
dev = &rte_eth_devices[param->port_id];
priv = dev->data->dev_private;
switch (param->type) {
- case MLX5_MP_REQ_VERBS_CMD_FD:
- mp_init_msg(dev, &mp_res, param->type);
- mp_res.num_fds = 1;
- mp_res.fds[0] = priv->sh->ctx->cmd_fd;
+ case MLX5_MP_REQ_START_RXTX:
+ DRV_LOG(INFO, "port %u starting datapath", dev->data->port_id);
+ rte_mb();
+ dev->rx_pkt_burst = mlx5_select_rx_function(dev);
+ dev->tx_pkt_burst = mlx5_select_tx_function(dev);
+ mp_init_msg(&priv->mp_id, &mp_res, param->type);
+ res->result = 0;
+ ret = rte_mp_reply(&mp_res, peer);
+ break;
+ case MLX5_MP_REQ_STOP_RXTX:
+ DRV_LOG(INFO, "port %u stopping datapath", dev->data->port_id);
+ dev->rx_pkt_burst = removed_rx_burst;
+ dev->tx_pkt_burst = removed_tx_burst;
+ rte_mb();
+ mp_init_msg(&priv->mp_id, &mp_res, param->type);
res->result = 0;
ret = rte_mp_reply(&mp_res, peer);
break;
}
/**
- * Request Verbs command file descriptor for mmap to the primary process.
+ * Broadcast request of stopping/starting data-path to secondary processes.
*
* @param[in] dev
* Pointer to Ethernet structure.
- *
- * @return
- * fd on success, a negative errno value otherwise and rte_errno is set.
+ * @param[in] type
+ * Request type.
*/
-int
-mlx5_mp_req_verbs_cmd_fd(struct rte_eth_dev *dev)
+static void
+mp_req_on_rxtx(struct rte_eth_dev *dev, enum mlx5_mp_req_type type)
{
struct rte_mp_msg mp_req;
struct rte_mp_msg *mp_res;
struct rte_mp_reply mp_rep;
struct mlx5_mp_param *res;
struct timespec ts = {.tv_sec = MLX5_MP_REQ_TIMEOUT_SEC, .tv_nsec = 0};
+ struct mlx5_priv *priv = dev->data->dev_private;
int ret;
+ int i;
- assert(rte_eal_process_type() == RTE_PROC_SECONDARY);
- mp_init_msg(dev, &mp_req, MLX5_MP_REQ_VERBS_CMD_FD);
+ MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
+ if (!mlx5_shared_data->secondary_cnt)
+ return;
+ if (type != MLX5_MP_REQ_START_RXTX && type != MLX5_MP_REQ_STOP_RXTX) {
+ DRV_LOG(ERR, "port %u unknown request (req_type %d)",
+ dev->data->port_id, type);
+ return;
+ }
+ mp_init_msg(&priv->mp_id, &mp_req, type);
ret = rte_mp_request_sync(&mp_req, &mp_rep, &ts);
if (ret) {
- DRV_LOG(ERR, "port %u request to primary process failed",
- dev->data->port_id);
- return -rte_errno;
+ if (rte_errno != ENOTSUP)
+ DRV_LOG(ERR, "port %u failed to request stop/start Rx/Tx (%d)",
+ dev->data->port_id, type);
+ goto exit;
}
- assert(mp_rep.nb_received == 1);
- mp_res = &mp_rep.msgs[0];
- res = (struct mlx5_mp_param *)mp_res->param;
- if (res->result) {
- rte_errno = -res->result;
+ if (mp_rep.nb_sent != mp_rep.nb_received) {
DRV_LOG(ERR,
- "port %u failed to get command FD from primary process",
- dev->data->port_id);
- ret = -rte_errno;
+ "port %u not all secondaries responded (req_type %d)",
+ dev->data->port_id, type);
goto exit;
}
- assert(mp_res->num_fds == 1);
- ret = mp_res->fds[0];
- DRV_LOG(DEBUG, "port %u command FD from primary is %d",
- dev->data->port_id, ret);
+ for (i = 0; i < mp_rep.nb_received; i++) {
+ mp_res = &mp_rep.msgs[i];
+ res = (struct mlx5_mp_param *)mp_res->param;
+ if (res->result) {
+ DRV_LOG(ERR, "port %u request failed on secondary #%d",
+ dev->data->port_id, i);
+ goto exit;
+ }
+ }
exit:
free(mp_rep.msgs);
- return ret;
}
/**
- * Initialize by primary process.
+ * Broadcast request of starting data-path to secondary processes. The request
+ * is synchronous.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
*/
void
-mlx5_mp_init_primary(void)
+mlx5_mp_req_start_rxtx(struct rte_eth_dev *dev)
{
- assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
- rte_mp_action_register(MLX5_MP_NAME, mp_primary_handle);
+ mp_req_on_rxtx(dev, MLX5_MP_REQ_START_RXTX);
}
/**
- * Un-initialize by primary process.
+ * Broadcast request of stopping data-path to secondary processes. The request
+ * is synchronous.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
*/
void
-mlx5_mp_uninit_primary(void)
+mlx5_mp_req_stop_rxtx(struct rte_eth_dev *dev)
{
- assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
- rte_mp_action_unregister(MLX5_MP_NAME);
+ mp_req_on_rxtx(dev, MLX5_MP_REQ_STOP_RXTX);
}
git.droids-corp.org / dpdk.git / blobdiff