#include <rte_string_fns.h>
#include "mlx5.h"
+#include "mlx5_rxtx.h"
#include "mlx5_utils.h"
/**
(const struct mlx5_mp_param *)mp_msg->param;
struct rte_eth_dev *dev;
struct mlx5_priv *priv;
+ struct mlx5_mr_cache entry;
+ uint32_t lkey;
int ret;
assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
dev = &rte_eth_devices[param->port_id];
priv = dev->data->dev_private;
switch (param->type) {
+ case MLX5_MP_REQ_CREATE_MR:
+ mp_init_msg(dev, &mp_res, param->type);
+ lkey = mlx5_mr_create_primary(dev, &entry, param->args.addr);
+ 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(dev, &mp_res, param->type);
mp_res.num_fds = 1;
res->result = 0;
ret = rte_mp_reply(&mp_res, peer);
break;
+ case MLX5_MP_REQ_QUEUE_STATE_MODIFY:
+ mp_init_msg(dev, &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",
return ret;
}
+/**
+ * IPC message handler of a secondary process.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
+ * @param[in] peer
+ * Pointer to the peer socket path.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+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;
+ const struct mlx5_mp_param *param =
+ (const struct mlx5_mp_param *)mp_msg->param;
+ struct rte_eth_dev *dev;
+ int ret;
+
+ 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);
+ return -rte_errno;
+ }
+ dev = &rte_eth_devices[param->port_id];
+ switch (param->type) {
+ 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(dev, &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(dev, &mp_res, param->type);
+ res->result = 0;
+ 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;
+}
+
+/**
+ * Broadcast request of stopping/starting data-path to secondary processes.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
+ * @param[in] type
+ * Request type.
+ */
+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};
+ int ret;
+ int i;
+
+ 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(dev, &mp_req, type);
+ ret = rte_mp_request_sync(&mp_req, &mp_rep, &ts);
+ if (ret) {
+ if (rte_errno != ENOTSUP)
+ DRV_LOG(ERR, "port %u failed to request stop/start Rx/Tx (%d)",
+ dev->data->port_id, type);
+ goto exit;
+ }
+ if (mp_rep.nb_sent != mp_rep.nb_received) {
+ DRV_LOG(ERR,
+ "port %u not all secondaries responded (req_type %d)",
+ dev->data->port_id, type);
+ goto exit;
+ }
+ 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);
+}
+
+/**
+ * Broadcast request of starting data-path to secondary processes. The request
+ * is synchronous.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
+ */
+void
+mlx5_mp_req_start_rxtx(struct rte_eth_dev *dev)
+{
+ mp_req_on_rxtx(dev, MLX5_MP_REQ_START_RXTX);
+}
+
+/**
+ * Broadcast request of stopping data-path to secondary processes. The request
+ * is synchronous.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
+ */
+void
+mlx5_mp_req_stop_rxtx(struct rte_eth_dev *dev)
+{
+ mp_req_on_rxtx(dev, MLX5_MP_REQ_STOP_RXTX);
+}
+
+/**
+ * Request Memory Region creation to the primary process.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
+ * @param addr
+ * Target virtual address to register.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_mp_req_mr_create(struct rte_eth_dev *dev, uintptr_t addr)
+{
+ struct rte_mp_msg mp_req;
+ struct rte_mp_msg *mp_res;
+ struct rte_mp_reply mp_rep;
+ struct mlx5_mp_param *req = (struct mlx5_mp_param *)mp_req.param;
+ struct mlx5_mp_param *res;
+ struct timespec ts = {.tv_sec = MLX5_MP_REQ_TIMEOUT_SEC, .tv_nsec = 0};
+ int ret;
+
+ assert(rte_eal_process_type() == RTE_PROC_SECONDARY);
+ mp_init_msg(dev, &mp_req, MLX5_MP_REQ_CREATE_MR);
+ req->args.addr = addr;
+ 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;
+ }
+ assert(mp_rep.nb_received == 1);
+ mp_res = &mp_rep.msgs[0];
+ res = (struct mlx5_mp_param *)mp_res->param;
+ ret = res->result;
+ if (ret)
+ rte_errno = -ret;
+ free(mp_rep.msgs);
+ return ret;
+}
+
+/**
+ * Request Verbs queue state modification to the primary process.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet structure.
+ * @param sm
+ * State modify parameters.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_mp_req_queue_state_modify(struct rte_eth_dev *dev,
+ struct mlx5_mp_arg_queue_state_modify *sm)
+{
+ struct rte_mp_msg mp_req;
+ struct rte_mp_msg *mp_res;
+ struct rte_mp_reply mp_rep;
+ struct mlx5_mp_param *req = (struct mlx5_mp_param *)mp_req.param;
+ struct mlx5_mp_param *res;
+ struct timespec ts = {.tv_sec = MLX5_MP_REQ_TIMEOUT_SEC, .tv_nsec = 0};
+ int ret;
+
+ assert(rte_eal_process_type() == RTE_PROC_SECONDARY);
+ mp_init_msg(dev, &mp_req, MLX5_MP_REQ_QUEUE_STATE_MODIFY);
+ req->args.state_modify = *sm;
+ 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;
+ }
+ assert(mp_rep.nb_received == 1);
+ mp_res = &mp_rep.msgs[0];
+ res = (struct mlx5_mp_param *)mp_res->param;
+ ret = res->result;
+ free(mp_rep.msgs);
+ return ret;
+}
+
/**
* Request Verbs command file descriptor for mmap to the primary process.
*
/**
* Initialize by primary process.
*/
-void
+int
mlx5_mp_init_primary(void)
{
+ int ret;
+
assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
- rte_mp_action_register(MLX5_MP_NAME, mp_primary_handle);
+
+ /* primary is allowed to not support IPC */
+ ret = rte_mp_action_register(MLX5_MP_NAME, mp_primary_handle);
+ if (ret && rte_errno != ENOTSUP)
+ return -1;
+ return 0;
}
/**
assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
rte_mp_action_unregister(MLX5_MP_NAME);
}
+
+/**
+ * Initialize by secondary process.
+ */
+int
+mlx5_mp_init_secondary(void)
+{
+ assert(rte_eal_process_type() == RTE_PROC_SECONDARY);
+ return rte_mp_action_register(MLX5_MP_NAME, mp_secondary_handle);
+}
+
+/**
+ * Un-initialize by secondary process.
+ */
+void
+mlx5_mp_uninit_secondary(void)
+{
+ assert(rte_eal_process_type() == RTE_PROC_SECONDARY);
+ rte_mp_action_unregister(MLX5_MP_NAME);
+}
git.droids-corp.org / dpdk.git / blobdiff