From: Xueming Li <xuemi...@nvidia.com>
To support multi-thread flow insertion, this patch removes shared data
lock since all resources should support concurrent protection.
Signed-off-by: Xueming Li <xuemi...@nvidia.com>
---
drivers/net/mlx5/linux/mlx5_os.c | 2 -
drivers/net/mlx5/mlx5.h | 1 -
drivers/net/mlx5/mlx5_flow_dv.c | 140 ++++-----------------------------------
3 files changed, 14 insertions(+), 129 deletions(-)
diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index c3dda27..776b6a3 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -310,7 +310,6 @@
err = errno;
goto error;
}
- pthread_mutex_init(&sh->dv_mutex, NULL);
sh->tx_domain = domain;
#ifdef HAVE_MLX5DV_DR_ESWITCH
if (priv->config.dv_esw_en) {
@@ -417,7 +416,6 @@
mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
sh->pop_vlan_action = NULL;
}
- pthread_mutex_destroy(&sh->dv_mutex);
#endif /* HAVE_MLX5DV_DR */
if (sh->encaps_decaps) {
mlx5_hlist_destroy(sh->encaps_decaps);
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 944db8d..29ff194 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -620,7 +620,6 @@ struct mlx5_dev_ctx_shared {
/* Packet pacing related structure. */
struct mlx5_dev_txpp txpp;
/* Shared DV/DR flow data section. */
- pthread_mutex_t dv_mutex; /* DV context mutex. */
uint32_t dv_meta_mask; /* flow META metadata supported mask. */
uint32_t dv_mark_mask; /* flow MARK metadata supported mask. */
uint32_t dv_regc0_mask; /* available bits of metatada reg_c[0]. */
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index ff91c8b..25d43ca 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -267,45 +267,6 @@ struct field_modify_info modify_tcp[] = {
}
}
-/**
- * Acquire the synchronizing object to protect multithreaded access
- * to shared dv context. Lock occurs only if context is actually
- * shared, i.e. we have multiport IB device and representors are
- * created.
- *
- * @param[in] dev
- * Pointer to the rte_eth_dev structure.
- */
-static void
-flow_dv_shared_lock(struct rte_eth_dev *dev)
-{
- struct mlx5_priv *priv = dev->data->dev_private;
- struct mlx5_dev_ctx_shared *sh = priv->sh;
-
- if (sh->dv_refcnt > 1) {
- int ret;
-
- ret = pthread_mutex_lock(&sh->dv_mutex);
- MLX5_ASSERT(!ret);
- (void)ret;
- }
-}
-
-static void
-flow_dv_shared_unlock(struct rte_eth_dev *dev)
-{
- struct mlx5_priv *priv = dev->data->dev_private;
- struct mlx5_dev_ctx_shared *sh = priv->sh;
-
- if (sh->dv_refcnt > 1) {
- int ret;
-
- ret = pthread_mutex_unlock(&sh->dv_mutex);
- MLX5_ASSERT(!ret);
- (void)ret;
- }
-}
-
/* Update VLAN's VID/PCP based on input rte_flow_action.
*
* @param[in] action
@@ -4880,7 +4841,7 @@ struct mlx5_hlist_entry *
* Index to the counter handler.
*/
static void
-flow_dv_counter_release(struct rte_eth_dev *dev, uint32_t counter)
+flow_dv_counter_free(struct rte_eth_dev *dev, uint32_t counter)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_counter_pool *pool = NULL;
@@ -8151,12 +8112,12 @@ struct mlx5_hlist_entry *
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-__flow_dv_translate(struct rte_eth_dev *dev,
- struct mlx5_flow *dev_flow,
- const struct rte_flow_attr *attr,
- const struct rte_flow_item items[],
- const struct rte_flow_action actions[],
- struct rte_flow_error *error)
+flow_dv_translate(struct rte_eth_dev *dev,
+ struct mlx5_flow *dev_flow,
+ const struct rte_flow_attr *attr,
+ const struct rte_flow_item items[],
+ const struct rte_flow_action actions[],
+ struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_dev_config *dev_conf = &priv->config;
@@ -8926,8 +8887,8 @@ struct mlx5_hlist_entry *
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-__flow_dv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
- struct rte_flow_error *error)
+flow_dv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
+ struct rte_flow_error *error)
{
struct mlx5_flow_dv_workspace *dv;
struct mlx5_flow_handle *dh;
@@ -9293,7 +9254,7 @@ struct mlx5_hlist_entry *
* Pointer to flow structure.
*/
static void
-__flow_dv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
+flow_dv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_flow_handle *dh;
uint32_t handle_idx;
@@ -9329,16 +9290,16 @@ struct mlx5_hlist_entry *
* Pointer to flow structure.
*/
static void
-__flow_dv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
+flow_dv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
{
struct mlx5_flow_handle *dev_handle;
struct mlx5_priv *priv = dev->data->dev_private;
if (!flow)
return;
- __flow_dv_remove(dev, flow);
+ flow_dv_remove(dev, flow);
if (flow->counter) {
- flow_dv_counter_release(dev, flow->counter);
+ flow_dv_counter_free(dev, flow->counter);
flow->counter = 0;
}
if (flow->meter) {
@@ -9975,85 +9936,12 @@ struct mlx5_hlist_entry *
}
/*
- * Mutex-protected thunk to lock-free __flow_dv_translate().
- */
-static int
-flow_dv_translate(struct rte_eth_dev *dev,
- struct mlx5_flow *dev_flow,
- const struct rte_flow_attr *attr,
- const struct rte_flow_item items[],
- const struct rte_flow_action actions[],
- struct rte_flow_error *error)
-{
- int ret;
-
- flow_dv_shared_lock(dev);
- ret = __flow_dv_translate(dev, dev_flow, attr, items, actions, error);
- flow_dv_shared_unlock(dev);
- return ret;
-}
-
-/*
- * Mutex-protected thunk to lock-free __flow_dv_apply().
- */
-static int
-flow_dv_apply(struct rte_eth_dev *dev,
- struct rte_flow *flow,
- struct rte_flow_error *error)
-{
- int ret;
-
- flow_dv_shared_lock(dev);
- ret = __flow_dv_apply(dev, flow, error);
- flow_dv_shared_unlock(dev);
- return ret;
-}
-
-/*
- * Mutex-protected thunk to lock-free __flow_dv_remove().
- */
-static void
-flow_dv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
-{
- flow_dv_shared_lock(dev);
- __flow_dv_remove(dev, flow);
- flow_dv_shared_unlock(dev);
-}
-
-/*
- * Mutex-protected thunk to lock-free __flow_dv_destroy().
- */
-static void
-flow_dv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
-{
- flow_dv_shared_lock(dev);
- __flow_dv_destroy(dev, flow);
- flow_dv_shared_unlock(dev);
-}
-
-/*
* Mutex-protected thunk to lock-free flow_dv_counter_alloc().
*/
static uint32_t
flow_dv_counter_allocate(struct rte_eth_dev *dev)
{
- uint32_t cnt;
-
- flow_dv_shared_lock(dev);
- cnt = flow_dv_counter_alloc(dev, 0, 0, 1, 0);
- flow_dv_shared_unlock(dev);
- return cnt;
-}
-
-/*
- * Mutex-protected thunk to lock-free flow_dv_counter_release().
- */
-static void
-flow_dv_counter_free(struct rte_eth_dev *dev, uint32_t cnt)
-{
- flow_dv_shared_lock(dev);
- flow_dv_counter_release(dev, cnt);
- flow_dv_shared_unlock(dev);
+ return flow_dv_counter_alloc(dev, 0, 0, 1, 0);
}
const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops = {
--
1.8.3.1
