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net/mlx5: fix internal root table flow priority

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When creating internal transfer flow on root table with lowest
priority, the flow was created with max UINT32_MAX priority. It is wrong
since the flow is created in kernel and  max priority supported is 16.

This patch fixes this by adding internal flow check.

Fixes: 5f8ae44dd4 ("net/mlx5: enlarge maximal flow priority")
Cc: stable@dpdk.org

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
This commit is contained in:
Xueming Li 2021-10-19 18:34:59 +08:00 committed by Raslan Darawsheh
parent d9020f2577
commit ebe9afedc7
3 changed files with 10 additions and 4 deletions
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7
drivers/net/mlx5/mlx5_flow.c
View File

@ -1003,13 +1003,15 @@ mlx5_get_lowest_priority(struct rte_eth_dev *dev,
* Pointer to device flow rule attributes.
* @param[in] subpriority
* The priority based on the items.
* @param[in] external
* Flow is user flow.
* @return
* The matcher priority of the flow.
*/
uint16_t
mlx5_get_matcher_priority(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
uint32_t subpriority)
uint32_t subpriority, bool external)
{
uint16_t priority = (uint16_t)attr->priority;
struct mlx5_priv *priv = dev->data->dev_private;
@ -1018,6 +1020,9 @@ mlx5_get_matcher_priority(struct rte_eth_dev *dev,
if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
priority = priv->config.flow_prio - 1;
return mlx5_os_flow_adjust_priority(dev, priority, subpriority);
} else if (!external && attr->transfer && attr->group == 0 &&
attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR) {
return (priv->config.flow_prio - 1) * 3;
}
if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
priority = MLX5_NON_ROOT_FLOW_MAX_PRIO;

2
drivers/net/mlx5/mlx5_flow.h
View File

@ -1432,7 +1432,7 @@ uint32_t mlx5_get_lowest_priority(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr);
uint16_t mlx5_get_matcher_priority(struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
uint32_t subpriority);
uint32_t subpriority, bool external);
int mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
enum mlx5_feature_name feature,
uint32_t id,

3
drivers/net/mlx5/mlx5_flow_dv.c
View File

@ -13556,7 +13556,8 @@ flow_dv_translate(struct rte_eth_dev *dev,
matcher.crc = rte_raw_cksum((const void *)matcher.mask.buf,
matcher.mask.size);
matcher.priority = mlx5_get_matcher_priority(dev, attr,
matcher.priority);
matcher.priority,
dev_flow->external);
/**
* When creating meter drop flow in drop table, using original
* 5-tuple match, the matcher priority should be lower than