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net/mlx5: support Direct Rules action template API

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This patch adapts mlx5 PMD to changes in mlx5dr API regarding the action
templates. It changes the following:

1. Actions template creation:

    - Flow actions types are translated to mlx5dr action types in order
      to create mlx5dr_action_template object.
    - An offset is assigned to each flow action. This offset is used to
      predetermine the action's location in the rule_acts array passed
      on the rule creation.

2. Template table creation:

    - Fixed actions are created and put in the rule_acts cache using
      predetermined offsets
    - mlx5dr matcher is parametrized by action templates bound to
      template table.
    - mlx5dr matcher is configured to optimize rule creation based on
      passed rule indices.

3. Flow rule creation:

    - mlx5dr rule is parametrized by the action template on which these
      rule's actions are based.
    - Rule index hint is provided to mlx5dr.

Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
This commit is contained in:
Dariusz Sosnowski 2022-10-20 18:41:43 +03:00 committed by Raslan Darawsheh
parent 4d368e1da3
commit f1fecffa88
6 changed files with 543 additions and 123 deletions
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1
drivers/net/mlx5/linux/mlx5_os.c
View File

@ -1578,6 +1578,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
}
/* Only HWS requires this information. */
flow_hw_init_tags_set(eth_dev);
flow_hw_init_flow_metadata_config(eth_dev);
if (priv->sh->config.dv_esw_en &&
flow_hw_create_vport_action(eth_dev)) {
DRV_LOG(ERR, "port %u failed to create vport action",

4
drivers/net/mlx5/mlx5.c
View File

@ -1969,8 +1969,10 @@ mlx5_dev_close(struct rte_eth_dev *dev)
flow_hw_destroy_vport_action(dev);
flow_hw_resource_release(dev);
flow_hw_clear_port_info(dev);
if (priv->sh->config.dv_flow_en == 2)
if (priv->sh->config.dv_flow_en == 2) {
flow_hw_clear_flow_metadata_config();
flow_hw_clear_tags_set(dev);
}
#endif
if (priv->rxq_privs != NULL) {
/* XXX race condition if mlx5_rx_burst() is still running. */

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

@ -1657,6 +1657,8 @@ struct mlx5_priv {
struct mlx5dr_action *hw_drop[2];
/* HW steering global tag action. */
struct mlx5dr_action *hw_tag[2];
/* HW steering create ongoing rte flow table list header. */
LIST_HEAD(flow_hw_tbl_ongo, rte_flow_template_table) flow_hw_tbl_ongo;
struct mlx5_indexed_pool *acts_ipool; /* Action data indexed pool. */
#endif
};

30
drivers/net/mlx5/mlx5_flow.h
View File

@ -1189,6 +1189,11 @@ struct rte_flow_actions_template {
struct rte_flow_actions_template_attr attr;
struct rte_flow_action *actions; /* Cached flow actions. */
struct rte_flow_action *masks; /* Cached action masks.*/
struct mlx5dr_action_template *tmpl; /* mlx5dr action template. */
uint16_t dr_actions_num; /* Amount of DR rules actions. */
uint16_t actions_num; /* Amount of flow actions */
uint16_t *actions_off; /* DR action offset for given rte action offset. */
uint16_t reformat_off; /* Offset of DR reformat action. */
uint16_t mhdr_off; /* Offset of DR modify header action. */
uint32_t refcnt; /* Reference counter. */
uint16_t rx_cpy_pos; /* Action position of Rx metadata to be copied. */
@ -1240,7 +1245,6 @@ struct mlx5_hw_actions {
/* Encap/Decap action. */
struct mlx5_hw_encap_decap_action *encap_decap;
uint16_t encap_decap_pos; /* Encap/Decap action position. */
uint32_t acts_num:4; /* Total action number. */
uint32_t mark:1; /* Indicate the mark action. */
uint32_t cnt_id; /* Counter id. */
/* Translated DR action array from action template. */
@ -1496,6 +1500,13 @@ flow_hw_get_wire_port(struct ibv_context *ibctx)
}
#endif
extern uint32_t mlx5_flow_hw_flow_metadata_config_refcnt;
extern uint8_t mlx5_flow_hw_flow_metadata_esw_en;
extern uint8_t mlx5_flow_hw_flow_metadata_xmeta_en;
void flow_hw_init_flow_metadata_config(struct rte_eth_dev *dev);
void flow_hw_clear_flow_metadata_config(void);
/*
* Convert metadata or tag to the actual register.
* META: Can only be used to match in the FDB in this stage, fixed C_1.
@ -1507,7 +1518,22 @@ flow_hw_get_reg_id(enum rte_flow_item_type type, uint32_t id)
{
switch (type) {
case RTE_FLOW_ITEM_TYPE_META:
#ifdef HAVE_MLX5_HWS_SUPPORT
if (mlx5_flow_hw_flow_metadata_esw_en &&
mlx5_flow_hw_flow_metadata_xmeta_en == MLX5_XMETA_MODE_META32_HWS) {
return REG_C_1;
}
#endif
/*
* On root table - PMD allows only egress META matching, thus
* REG_A matching is sufficient.
*
* On non-root tables - REG_A corresponds to general_purpose_lookup_field,
* which translates to REG_A in NIC TX and to REG_B in NIC RX.
* However, current FW does not implement REG_B case right now, so
* REG_B case should be rejected on pattern template validation.
*/
return REG_A;
case RTE_FLOW_ITEM_TYPE_TAG:
MLX5_ASSERT(id < MLX5_FLOW_HW_TAGS_MAX);
return mlx5_flow_hw_avl_tags[id];
@ -2421,4 +2447,6 @@ int mlx5_flow_pattern_validate(struct rte_eth_dev *dev,
const struct rte_flow_pattern_template_attr *attr,
const struct rte_flow_item items[],
struct rte_flow_error *error);
int flow_hw_table_update(struct rte_eth_dev *dev,
struct rte_flow_error *error);
#endif /* RTE_PMD_MLX5_FLOW_H_ */

601
drivers/net/mlx5/mlx5_flow_hw.c
View File

File diff suppressed because it is too large Load Diff

10
drivers/net/mlx5/mlx5_trigger.c
View File

@ -1170,6 +1170,16 @@ mlx5_dev_start(struct rte_eth_dev *dev)
dev->data->port_id, rte_strerror(rte_errno));
goto error;
}
#ifdef HAVE_MLX5_HWS_SUPPORT
if (priv->sh->config.dv_flow_en == 2) {
ret = flow_hw_table_update(dev, NULL);
if (ret) {
DRV_LOG(ERR, "port %u failed to update HWS tables",
dev->data->port_id);
goto error;
}
}
#endif
ret = mlx5_traffic_enable(dev);
if (ret) {
DRV_LOG(ERR, "port %u failed to set defaults flows",