#include <rte_common.h>
#include <rte_ether.h>
-#include <rte_ethdev_driver.h>
+#include <ethdev_driver.h>
#include <rte_eal_paging.h>
#include <rte_flow.h>
#include <rte_cycles.h>
return config->flow_mreg_c[2] != REG_NON;
}
+/**
+ * Get the lowest priority.
+ *
+ * @param[in] dev
+ * Pointer to the Ethernet device structure.
+ * @param[in] attributes
+ * Pointer to device flow rule attributes.
+ *
+ * @return
+ * The value of lowest priority of flow.
+ */
+uint32_t
+mlx5_get_lowest_priority(struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attr)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ if (!attr->group && !attr->transfer)
+ return priv->config.flow_prio - 2;
+ return MLX5_NON_ROOT_FLOW_MAX_PRIO - 1;
+}
+
+/**
+ * Calculate matcher priority of the flow.
+ *
+ * @param[in] dev
+ * Pointer to the Ethernet device structure.
+ * @param[in] attr
+ * Pointer to device flow rule attributes.
+ * @param[in] subpriority
+ * The priority based on the items.
+ * @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)
+{
+ uint16_t priority = (uint16_t)attr->priority;
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ if (!attr->group && !attr->transfer) {
+ if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
+ priority = priv->config.flow_prio - 1;
+ return mlx5_os_flow_adjust_priority(dev, priority, subpriority);
+ }
+ if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
+ priority = MLX5_NON_ROOT_FLOW_MAX_PRIO;
+ return priority * 3 + subpriority;
+}
+
/**
* Verify the @p item specifications (spec, last, mask) are compatible with the
* NIC capabilities.
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
NULL, "groups is not supported");
- if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
+ if (attributes->priority != MLX5_FLOW_LOWEST_PRIO_INDICATOR &&
attributes->priority >= priority_max)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
static const struct rte_flow_action_rss*
flow_get_rss_action(const struct rte_flow_action actions[])
{
+ const struct rte_flow_action_rss *rss = NULL;
+
for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
switch (actions->type) {
case RTE_FLOW_ACTION_TYPE_RSS:
- return (const struct rte_flow_action_rss *)
- actions->conf;
+ rss = actions->conf;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SAMPLE:
+ {
+ const struct rte_flow_action_sample *sample =
+ actions->conf;
+ const struct rte_flow_action *act = sample->actions;
+ for (; act->type != RTE_FLOW_ACTION_TYPE_END; act++)
+ if (act->type == RTE_FLOW_ACTION_TYPE_RSS)
+ rss = act->conf;
+ break;
+ }
default:
break;
}
}
- return NULL;
+ return rss;
}
/**
};
} else {
/* Default rule, wildcard match. */
- attr.priority = MLX5_FLOW_PRIO_RSVD;
+ attr.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR;
items[0] = (struct rte_flow_item){
.type = RTE_FLOW_ITEM_TYPE_END,
};
* Pointer to the position of the matched action if exists, otherwise is -1.
* @param[out] qrss_action_pos
* Pointer to the position of the Queue/RSS action if exists, otherwise is -1.
+ * @param[out] modify_after_mirror
+ * Pointer to the flag of modify action after FDB mirroring.
*
* @return
* > 0 the total number of actions.
flow_check_match_action(const struct rte_flow_action actions[],
const struct rte_flow_attr *attr,
enum rte_flow_action_type action,
- int *match_action_pos, int *qrss_action_pos)
+ int *match_action_pos, int *qrss_action_pos,
+ int *modify_after_mirror)
{
const struct rte_flow_action_sample *sample;
int actions_n = 0;
- int jump_flag = 0;
uint32_t ratio = 0;
int sub_type = 0;
int flag = 0;
+ int fdb_mirror = 0;
*match_action_pos = -1;
*qrss_action_pos = -1;
flag = 1;
*match_action_pos = actions_n;
}
- if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE ||
- actions->type == RTE_FLOW_ACTION_TYPE_RSS)
+ switch (actions->type) {
+ case RTE_FLOW_ACTION_TYPE_QUEUE:
+ case RTE_FLOW_ACTION_TYPE_RSS:
*qrss_action_pos = actions_n;
- if (actions->type == RTE_FLOW_ACTION_TYPE_JUMP)
- jump_flag = 1;
- if (actions->type == RTE_FLOW_ACTION_TYPE_SAMPLE) {
+ break;
+ case RTE_FLOW_ACTION_TYPE_SAMPLE:
sample = actions->conf;
ratio = sample->ratio;
sub_type = ((const struct rte_flow_action *)
(sample->actions))->type;
+ if (ratio == 1 && attr->transfer)
+ fdb_mirror = 1;
+ break;
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
+ case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
+ case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
+ case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
+ case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
+ case RTE_FLOW_ACTION_TYPE_DEC_TTL:
+ case RTE_FLOW_ACTION_TYPE_SET_TTL:
+ case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
+ case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
+ case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
+ case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
+ case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
+ case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
+ case RTE_FLOW_ACTION_TYPE_FLAG:
+ case RTE_FLOW_ACTION_TYPE_MARK:
+ case RTE_FLOW_ACTION_TYPE_SET_META:
+ case RTE_FLOW_ACTION_TYPE_SET_TAG:
+ if (fdb_mirror)
+ *modify_after_mirror = 1;
+ break;
+ default:
+ break;
}
actions_n++;
}
- if (flag && action == RTE_FLOW_ACTION_TYPE_SAMPLE && attr->transfer) {
- if (ratio == 1) {
- /* JUMP Action not support for Mirroring;
- * Mirroring support multi-destination;
- */
- if (!jump_flag && sub_type != RTE_FLOW_ACTION_TYPE_END)
- flag = 0;
- }
+ if (flag && fdb_mirror && !*modify_after_mirror) {
+ /* FDB mirroring uses the destination array to implement
+ * instead of FLOW_SAMPLER object.
+ */
+ if (sub_type != RTE_FLOW_ACTION_TYPE_END)
+ flag = 0;
}
/* Count RTE_FLOW_ACTION_TYPE_END. */
return flag ? actions_n + 1 : 0;
*
* @param dev
* Pointer to Ethernet device.
- * @param[in] fdb_tx
- * FDB egress flow flag.
+ * @param[in] add_tag
+ * Add extra tag action flag.
* @param[out] sfx_items
* Suffix flow match items (list terminated by the END pattern item).
* @param[in] actions
* The sample action position.
* @param[in] qrss_action_pos
* The Queue/RSS action position.
+ * @param[in] jump_table
+ * Add extra jump action flag.
* @param[out] error
* Perform verbose error reporting if not NULL.
*
*/
static int
flow_sample_split_prep(struct rte_eth_dev *dev,
- uint32_t fdb_tx,
+ int add_tag,
struct rte_flow_item sfx_items[],
const struct rte_flow_action actions[],
struct rte_flow_action actions_sfx[],
int actions_n,
int sample_action_pos,
int qrss_action_pos,
+ int jump_table,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_rte_flow_action_set_tag *set_tag;
struct mlx5_rte_flow_item_tag *tag_spec;
struct mlx5_rte_flow_item_tag *tag_mask;
+ struct rte_flow_action_jump *jump_action;
uint32_t tag_id = 0;
int index;
+ int append_index = 0;
int ret;
if (sample_action_pos < 0)
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "invalid position of sample "
"action in list");
- if (!fdb_tx) {
+ /* Prepare the actions for prefix and suffix flow. */
+ if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) {
+ index = qrss_action_pos;
+ /* Put the preceding the Queue/RSS action into prefix flow. */
+ if (index != 0)
+ memcpy(actions_pre, actions,
+ sizeof(struct rte_flow_action) * index);
+ /* Put others preceding the sample action into prefix flow. */
+ if (sample_action_pos > index + 1)
+ memcpy(actions_pre + index, actions + index + 1,
+ sizeof(struct rte_flow_action) *
+ (sample_action_pos - index - 1));
+ index = sample_action_pos - 1;
+ /* Put Queue/RSS action into Suffix flow. */
+ memcpy(actions_sfx, actions + qrss_action_pos,
+ sizeof(struct rte_flow_action));
+ actions_sfx++;
+ } else {
+ index = sample_action_pos;
+ if (index != 0)
+ memcpy(actions_pre, actions,
+ sizeof(struct rte_flow_action) * index);
+ }
+ /* For CX5, add an extra tag action for NIC-RX and E-Switch ingress.
+ * For CX6DX and above, metadata registers Cx preserve their value,
+ * add an extra tag action for NIC-RX and E-Switch Domain.
+ */
+ if (add_tag) {
/* Prepare the prefix tag action. */
- set_tag = (void *)(actions_pre + actions_n + 1);
+ append_index++;
+ set_tag = (void *)(actions_pre + actions_n + append_index);
ret = mlx5_flow_get_reg_id(dev, MLX5_APP_TAG, 0, error);
if (ret < 0)
return ret;
.type = (enum rte_flow_item_type)
RTE_FLOW_ITEM_TYPE_END,
};
- }
- /* Prepare the actions for prefix and suffix flow. */
- if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) {
- index = qrss_action_pos;
- /* Put the preceding the Queue/RSS action into prefix flow. */
- if (index != 0)
- memcpy(actions_pre, actions,
- sizeof(struct rte_flow_action) * index);
- /* Put others preceding the sample action into prefix flow. */
- if (sample_action_pos > index + 1)
- memcpy(actions_pre + index, actions + index + 1,
- sizeof(struct rte_flow_action) *
- (sample_action_pos - index - 1));
- index = sample_action_pos - 1;
- /* Put Queue/RSS action into Suffix flow. */
- memcpy(actions_sfx, actions + qrss_action_pos,
- sizeof(struct rte_flow_action));
- actions_sfx++;
- } else {
- index = sample_action_pos;
- if (index != 0)
- memcpy(actions_pre, actions,
- sizeof(struct rte_flow_action) * index);
- }
- /* Add the extra tag action for NIC-RX and E-Switch ingress. */
- if (!fdb_tx) {
+ /* Prepare the tag action in prefix subflow. */
actions_pre[index++] =
(struct rte_flow_action){
.type = (enum rte_flow_action_type)
memcpy(actions_pre + index, actions + sample_action_pos,
sizeof(struct rte_flow_action));
index += 1;
+ /* For the modify action after the sample action in E-Switch mirroring,
+ * Add the extra jump action in prefix subflow and jump into the next
+ * table, then do the modify action in the new table.
+ */
+ if (jump_table) {
+ /* Prepare the prefix jump action. */
+ append_index++;
+ jump_action = (void *)(actions_pre + actions_n + append_index);
+ jump_action->group = jump_table;
+ actions_pre[index++] =
+ (struct rte_flow_action){
+ .type = (enum rte_flow_action_type)
+ RTE_FLOW_ACTION_TYPE_JUMP,
+ .conf = jump_action,
+ };
+ }
actions_pre[index] = (struct rte_flow_action){
.type = (enum rte_flow_action_type)
RTE_FLOW_ACTION_TYPE_END,
int actions_n = 0;
int sample_action_pos;
int qrss_action_pos;
+ int add_tag = 0;
+ int modify_after_mirror = 0;
+ uint16_t jump_table = 0;
+ const uint32_t next_ft_step = 1;
int ret = 0;
if (priv->sampler_en)
actions_n = flow_check_match_action(actions, attr,
RTE_FLOW_ACTION_TYPE_SAMPLE,
- &sample_action_pos, &qrss_action_pos);
+ &sample_action_pos, &qrss_action_pos,
+ &modify_after_mirror);
if (actions_n) {
/* The prefix actions must includes sample, tag, end. */
act_size = sizeof(struct rte_flow_action) * (actions_n * 2 + 1)
"sample flow");
/* The representor_id is -1 for uplink. */
fdb_tx = (attr->transfer && priv->representor_id != -1);
- if (!fdb_tx)
+ /*
+ * When reg_c_preserve is set, metadata registers Cx preserve
+ * their value even through packet duplication.
+ */
+ add_tag = (!fdb_tx || priv->config.hca_attr.reg_c_preserve);
+ if (add_tag)
sfx_items = (struct rte_flow_item *)((char *)sfx_actions
+ act_size);
+ if (modify_after_mirror)
+ jump_table = attr->group * MLX5_FLOW_TABLE_FACTOR +
+ next_ft_step;
pre_actions = sfx_actions + actions_n;
- tag_id = flow_sample_split_prep(dev, fdb_tx, sfx_items,
+ tag_id = flow_sample_split_prep(dev, add_tag, sfx_items,
actions, sfx_actions,
pre_actions, actions_n,
sample_action_pos,
- qrss_action_pos, error);
- if (tag_id < 0 || (!fdb_tx && !tag_id)) {
+ qrss_action_pos, jump_table,
+ error);
+ if (tag_id < 0 || (add_tag && !tag_id)) {
ret = -rte_errno;
goto exit;
}
+ if (modify_after_mirror)
+ flow_split_info->skip_scale =
+ 1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
/* Add the prefix subflow. */
ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
items, pre_actions,
}
dev_flow->handle->split_flow_id = tag_id;
#ifdef HAVE_IBV_FLOW_DV_SUPPORT
- /* Set the sfx group attr. */
- sample_res = (struct mlx5_flow_dv_sample_resource *)
- dev_flow->dv.sample_res;
- sfx_tbl = (struct mlx5_flow_tbl_resource *)
- sample_res->normal_path_tbl;
- sfx_tbl_data = container_of(sfx_tbl,
- struct mlx5_flow_tbl_data_entry, tbl);
- sfx_attr.group = sfx_attr.transfer ?
- (sfx_tbl_data->table_id - 1) :
- sfx_tbl_data->table_id;
+ if (!modify_after_mirror) {
+ /* Set the sfx group attr. */
+ sample_res = (struct mlx5_flow_dv_sample_resource *)
+ dev_flow->dv.sample_res;
+ sfx_tbl = (struct mlx5_flow_tbl_resource *)
+ sample_res->normal_path_tbl;
+ sfx_tbl_data = container_of(sfx_tbl,
+ struct mlx5_flow_tbl_data_entry,
+ tbl);
+ sfx_attr.group = sfx_attr.transfer ?
+ (sfx_tbl_data->table_id - 1) :
+ sfx_tbl_data->table_id;
+ } else {
+ MLX5_ASSERT(attr->transfer);
+ sfx_attr.group = jump_table;
+ }
flow_split_info->prefix_layers =
flow_get_prefix_layer_flags(dev_flow);
flow_split_info->prefix_mark = dev_flow->handle->mark;
/* Suffix group level already be scaled with factor, set
- * skip_scale to 1 to avoid scale again in translation.
+ * MLX5_SCALE_FLOW_GROUP_BIT of skip_scale to 1 to avoid scale
+ * again in translation.
*/
- flow_split_info->skip_scale = 1;
+ flow_split_info->skip_scale = 1 << MLX5_SCALE_FLOW_GROUP_BIT;
#endif
}
/* Add the suffix subflow. */
*/
if (external || dev->data->dev_started ||
(attr->group == MLX5_FLOW_MREG_CP_TABLE_GROUP &&
- attr->priority == MLX5_FLOW_PRIO_RSVD)) {
+ attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)) {
ret = flow_drv_apply(dev, flow, error);
if (ret < 0)
goto error;
struct mlx5_priv *priv = dev->data->dev_private;
const struct rte_flow_attr attr = {
.ingress = 1,
- .priority = MLX5_FLOW_PRIO_RSVD,
+ .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
};
struct rte_flow_item items[] = {
{
for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
struct rte_flow_attr attr = {
.group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
- .priority = MLX5_FLOW_PRIO_RSVD,
+ .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
.ingress = 1,
};
struct rte_flow_item items[] = {
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