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From: Michael Baum <michaelba@nvidia.com>
To: dev@dpdk.org
Cc: Matan Azrad <matan@nvidia.com>, Raslan Darawsheh <rasland@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Date: Thu, 3 Sep 2020 10:13:41 +0000
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Subject: [dpdk-dev] [PATCH v1 10/18] net/mlx5: separate Rx queue object
modification
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Separate Rx object modification to the Verbs and DevX modules.
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
drivers/net/mlx5/linux/mlx5_verbs.c | 22 ++++++++++++++++++++++
drivers/net/mlx5/mlx5.h | 1 +
drivers/net/mlx5/mlx5_devx.c | 27 +++++++++++++++++++++++++++
drivers/net/mlx5/mlx5_rxq.c | 32 ++------------------------------
4 files changed, 52 insertions(+), 30 deletions(-)
diff --git a/drivers/net/mlx5/linux/mlx5_verbs.c b/drivers/net/mlx5/linux/mlx5_verbs.c
index d9cf911..7d623c8 100644
--- a/drivers/net/mlx5/linux/mlx5_verbs.c
+++ b/drivers/net/mlx5/linux/mlx5_verbs.c
@@ -4,6 +4,7 @@
#include <stddef.h>
#include <errno.h>
+#include <stdbool.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h>
@@ -423,9 +424,30 @@
return -rte_errno;
}
+/**
+ * Modifies the attributes for the specified WQ.
+ *
+ * @param rxq_obj
+ * Verbs Rx queue object.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_ibv_modify_wq(struct mlx5_rxq_obj *rxq_obj, bool is_start)
+{
+ struct ibv_wq_attr mod = {
+ .attr_mask = IBV_WQ_ATTR_STATE,
+ .wq_state = is_start ? IBV_WQS_RDY : IBV_WQS_RESET,
+ };
+
+ return mlx5_glue->modify_wq(rxq_obj->wq, &mod);
+}
+
struct mlx5_obj_ops ibv_obj_ops = {
.rxq_obj_modify_vlan_strip = mlx5_rxq_obj_modify_wq_vlan_strip,
.rxq_obj_new = mlx5_rxq_ibv_obj_new,
.rxq_event_get = mlx5_rx_ibv_get_event,
+ .rxq_obj_modify = mlx5_ibv_modify_wq,
.rxq_obj_release = mlx5_rxq_ibv_obj_release,
};
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 5131a47..a51c88f 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -709,6 +709,7 @@ struct mlx5_obj_ops {
int (*rxq_obj_modify_vlan_strip)(struct mlx5_rxq_obj *rxq_obj, int on);
int (*rxq_obj_new)(struct rte_eth_dev *dev, uint16_t idx);
int (*rxq_event_get)(struct mlx5_rxq_obj *rxq_obj);
+ int (*rxq_obj_modify)(struct mlx5_rxq_obj *rxq_obj, bool is_start);
void (*rxq_obj_release)(struct mlx5_rxq_obj *rxq_obj);
};
diff --git a/drivers/net/mlx5/mlx5_devx.c b/drivers/net/mlx5/mlx5_devx.c
index 8bbc664..e577e38 100644
--- a/drivers/net/mlx5/mlx5_devx.c
+++ b/drivers/net/mlx5/mlx5_devx.c
@@ -4,6 +4,7 @@
#include <stddef.h>
#include <errno.h>
+#include <stdbool.h>
#include <string.h>
#include <stdint.h>
#include <sys/queue.h>
@@ -143,6 +144,31 @@
}
/**
+ * Modify RQ using DevX API.
+ *
+ * @param rxq_obj
+ * DevX Rx queue object.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_devx_modify_rq(struct mlx5_rxq_obj *rxq_obj, bool is_start)
+{
+ struct mlx5_devx_modify_rq_attr rq_attr;
+
+ memset(&rq_attr, 0, sizeof(rq_attr));
+ if (is_start) {
+ rq_attr.rq_state = MLX5_RQC_STATE_RST;
+ rq_attr.state = MLX5_RQC_STATE_RDY;
+ } else {
+ rq_attr.rq_state = MLX5_RQC_STATE_RDY;
+ rq_attr.state = MLX5_RQC_STATE_RST;
+ }
+ return mlx5_devx_cmd_modify_rq(rxq_obj->rq, &rq_attr);
+}
+
+/**
* Get event for an Rx DevX queue object.
*
* @param rxq_obj
@@ -605,5 +631,6 @@ struct mlx5_obj_ops devx_obj_ops = {
.rxq_obj_modify_vlan_strip = mlx5_rxq_obj_modify_rq_vlan_strip,
.rxq_obj_new = mlx5_rxq_devx_obj_new,
.rxq_event_get = mlx5_rx_devx_get_event,
+ .rxq_obj_modify = mlx5_devx_modify_rq,
.rxq_obj_release = mlx5_rxq_devx_obj_release,
};
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 3115f5a..c18610d 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -516,21 +516,7 @@
int ret;
MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
- if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_IBV) {
- struct ibv_wq_attr mod = {
- .attr_mask = IBV_WQ_ATTR_STATE,
- .wq_state = IBV_WQS_RESET,
- };
-
- ret = mlx5_glue->modify_wq(rxq_ctrl->obj->wq, &mod);
- } else { /* rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ. */
- struct mlx5_devx_modify_rq_attr rq_attr;
-
- memset(&rq_attr, 0, sizeof(rq_attr));
- rq_attr.rq_state = MLX5_RQC_STATE_RDY;
- rq_attr.state = MLX5_RQC_STATE_RST;
- ret = mlx5_devx_cmd_modify_rq(rxq_ctrl->obj->rq, &rq_attr);
- }
+ ret = priv->obj_ops->rxq_obj_modify(rxq_ctrl->obj, false);
if (ret) {
DRV_LOG(ERR, "Cannot change Rx WQ state to RESET: %s",
strerror(errno));
@@ -629,21 +615,7 @@
/* Reset RQ consumer before moving queue to READY state. */
*rxq->rq_db = rte_cpu_to_be_32(0);
rte_cio_wmb();
- if (rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_IBV) {
- struct ibv_wq_attr mod = {
- .attr_mask = IBV_WQ_ATTR_STATE,
- .wq_state = IBV_WQS_RDY,
- };
-
- ret = mlx5_glue->modify_wq(rxq_ctrl->obj->wq, &mod);
- } else { /* rxq_ctrl->obj->type == MLX5_RXQ_OBJ_TYPE_DEVX_RQ. */
- struct mlx5_devx_modify_rq_attr rq_attr;
-
- memset(&rq_attr, 0, sizeof(rq_attr));
- rq_attr.rq_state = MLX5_RQC_STATE_RST;
- rq_attr.state = MLX5_RQC_STATE_RDY;
- ret = mlx5_devx_cmd_modify_rq(rxq_ctrl->obj->rq, &rq_attr);
- }
+ ret = priv->obj_ops->rxq_obj_modify(rxq_ctrl->obj, true);
if (ret) {
DRV_LOG(ERR, "Cannot change Rx WQ state to READY: %s",
strerror(errno));
--
1.8.3.1