Use the common attr and action parsing infrastructure in flow director
filters (both tunnel and normal). As a result, some checks have become
more stringent, in particular group attribute is now explicitly rejected
instead of being ignored.

Signed-off-by: Anatoly Burakov <[email protected]>
---
 drivers/net/intel/ixgbe/ixgbe_flow.c | 290 ++++++++++++---------------
 1 file changed, 128 insertions(+), 162 deletions(-)

diff --git a/drivers/net/intel/ixgbe/ixgbe_flow.c 
b/drivers/net/intel/ixgbe/ixgbe_flow.c
index 38a8002611..c857eb0227 100644
--- a/drivers/net/intel/ixgbe/ixgbe_flow.c
+++ b/drivers/net/intel/ixgbe/ixgbe_flow.c
@@ -1182,111 +1182,6 @@ ixgbe_parse_l2_tn_filter(struct rte_eth_dev *dev,
        return ret;
 }
 
-/* Parse to get the attr and action info of flow director rule. */
-static int
-ixgbe_parse_fdir_act_attr(const struct rte_flow_attr *attr,
-                         const struct rte_flow_action actions[],
-                         struct ixgbe_fdir_rule *rule,
-                         struct rte_flow_error *error)
-{
-       const struct rte_flow_action *act;
-       const struct rte_flow_action_queue *act_q;
-       const struct rte_flow_action_mark *mark;
-
-       /* parse attr */
-       /* must be input direction */
-       if (!attr->ingress) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
-                       attr, "Only support ingress.");
-               return -rte_errno;
-       }
-
-       /* not supported */
-       if (attr->egress) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
-                       attr, "Not support egress.");
-               return -rte_errno;
-       }
-
-       /* not supported */
-       if (attr->transfer) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
-                       attr, "No support for transfer.");
-               return -rte_errno;
-       }
-
-       /* not supported */
-       if (attr->priority) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
-                       attr, "Not support priority.");
-               return -rte_errno;
-       }
-
-       /* check if the first not void action is QUEUE or DROP. */
-       act = next_no_void_action(actions, NULL);
-       if (act->type != RTE_FLOW_ACTION_TYPE_QUEUE &&
-           act->type != RTE_FLOW_ACTION_TYPE_DROP) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ACTION,
-                       act, "Not supported action.");
-               return -rte_errno;
-       }
-
-       if (act->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
-               act_q = (const struct rte_flow_action_queue *)act->conf;
-               rule->queue = act_q->index;
-       } else { /* drop */
-               /* signature mode does not support drop action. */
-               if (rule->mode == RTE_FDIR_MODE_SIGNATURE) {
-                       memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-                       rte_flow_error_set(error, EINVAL,
-                               RTE_FLOW_ERROR_TYPE_ACTION,
-                               act, "Not supported action.");
-                       return -rte_errno;
-               }
-               rule->fdirflags = IXGBE_FDIRCMD_DROP;
-       }
-
-       /* check if the next not void item is MARK */
-       act = next_no_void_action(actions, act);
-       if ((act->type != RTE_FLOW_ACTION_TYPE_MARK) &&
-               (act->type != RTE_FLOW_ACTION_TYPE_END)) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ACTION,
-                       act, "Not supported action.");
-               return -rte_errno;
-       }
-
-       rule->soft_id = 0;
-
-       if (act->type == RTE_FLOW_ACTION_TYPE_MARK) {
-               mark = (const struct rte_flow_action_mark *)act->conf;
-               rule->soft_id = mark->id;
-               act = next_no_void_action(actions, act);
-       }
-
-       /* check if the next not void item is END */
-       if (act->type != RTE_FLOW_ACTION_TYPE_END) {
-               memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ACTION,
-                       act, "Not supported action.");
-               return -rte_errno;
-       }
-
-       return 0;
-}
-
 /* search next no void pattern and skip fuzzy */
 static inline
 const struct rte_flow_item *next_no_fuzzy_pattern(
@@ -1393,9 +1288,8 @@ static inline uint8_t signature_match(const struct 
rte_flow_item pattern[])
  */
 static int
 ixgbe_parse_fdir_filter_normal(struct rte_eth_dev *dev,
-                              const struct rte_flow_attr *attr,
                               const struct rte_flow_item pattern[],
-                              const struct rte_flow_action actions[],
+                              const struct ci_flow_actions *parsed_actions,
                               struct ixgbe_fdir_rule *rule,
                               struct rte_flow_error *error)
 {
@@ -1416,29 +1310,39 @@ ixgbe_parse_fdir_filter_normal(struct rte_eth_dev *dev,
        const struct rte_flow_item_vlan *vlan_mask;
        const struct rte_flow_item_raw *raw_mask;
        const struct rte_flow_item_raw *raw_spec;
+       const struct rte_flow_action *fwd_action, *aux_action;
+       struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        uint8_t j;
 
-       struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       fwd_action = parsed_actions->actions[0];
+       /* can be NULL */
+       aux_action = parsed_actions->actions[1];
 
-       if (!pattern) {
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ITEM_NUM,
-                       NULL, "NULL pattern.");
-               return -rte_errno;
-       }
+       /* check if this is a signature match */
+       if (signature_match(pattern))
+               rule->mode = RTE_FDIR_MODE_SIGNATURE;
+       else
+               rule->mode = RTE_FDIR_MODE_PERFECT;
 
-       if (!actions) {
-               rte_flow_error_set(error, EINVAL,
-                                  RTE_FLOW_ERROR_TYPE_ACTION_NUM,
-                                  NULL, "NULL action.");
-               return -rte_errno;
+       /* set up action */
+       if (fwd_action->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
+               const struct rte_flow_action_queue *q_act = fwd_action->conf;
+               rule->queue = q_act->index;
+       } else {
+               /* signature mode does not support drop action. */
+               if (rule->mode == RTE_FDIR_MODE_SIGNATURE) {
+                       rte_flow_error_set(error, EINVAL,
+                               RTE_FLOW_ERROR_TYPE_ACTION, fwd_action,
+                               "Signature mode does not support drop action.");
+                       return -rte_errno;
+               }
+               rule->fdirflags = IXGBE_FDIRCMD_DROP;
        }
 
-       if (!attr) {
-               rte_flow_error_set(error, EINVAL,
-                                  RTE_FLOW_ERROR_TYPE_ATTR,
-                                  NULL, "NULL attribute.");
-               return -rte_errno;
+       /* set up mark action */
+       if (aux_action != NULL && aux_action->type == 
RTE_FLOW_ACTION_TYPE_MARK) {
+               const struct rte_flow_action_mark *m_act = aux_action->conf;
+               rule->soft_id = m_act->id;
        }
 
        /**
@@ -1470,11 +1374,6 @@ ixgbe_parse_fdir_filter_normal(struct rte_eth_dev *dev,
                return -rte_errno;
        }
 
-       if (signature_match(pattern))
-               rule->mode = RTE_FDIR_MODE_SIGNATURE;
-       else
-               rule->mode = RTE_FDIR_MODE_PERFECT;
-
        /*Not supported last point for range*/
        if (item->last) {
                rte_flow_error_set(error, EINVAL,
@@ -2063,7 +1962,7 @@ ixgbe_parse_fdir_filter_normal(struct rte_eth_dev *dev,
                }
        }
 
-       return ixgbe_parse_fdir_act_attr(attr, actions, rule, error);
+       return 0;
 }
 
 #define NVGRE_PROTOCOL 0x6558
@@ -2106,9 +2005,8 @@ ixgbe_parse_fdir_filter_normal(struct rte_eth_dev *dev,
  * item->last should be NULL.
  */
 static int
-ixgbe_parse_fdir_filter_tunnel(const struct rte_flow_attr *attr,
-                              const struct rte_flow_item pattern[],
-                              const struct rte_flow_action actions[],
+ixgbe_parse_fdir_filter_tunnel(const struct rte_flow_item pattern[],
+                              const struct ci_flow_actions *parsed_actions,
                               struct ixgbe_fdir_rule *rule,
                               struct rte_flow_error *error)
 {
@@ -2121,27 +2019,25 @@ ixgbe_parse_fdir_filter_tunnel(const struct 
rte_flow_attr *attr,
        const struct rte_flow_item_eth *eth_mask;
        const struct rte_flow_item_vlan *vlan_spec;
        const struct rte_flow_item_vlan *vlan_mask;
+       const struct rte_flow_action *fwd_action, *aux_action;
        uint32_t j;
 
-       if (!pattern) {
-               rte_flow_error_set(error, EINVAL,
-                       RTE_FLOW_ERROR_TYPE_ITEM_NUM,
-                                  NULL, "NULL pattern.");
-               return -rte_errno;
-       }
+       fwd_action = parsed_actions->actions[0];
+       /* can be NULL */
+       aux_action = parsed_actions->actions[1];
 
-       if (!actions) {
-               rte_flow_error_set(error, EINVAL,
-                                  RTE_FLOW_ERROR_TYPE_ACTION_NUM,
-                                  NULL, "NULL action.");
-               return -rte_errno;
+       /* set up queue/drop action */
+       if (fwd_action->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
+               const struct rte_flow_action_queue *q_act = fwd_action->conf;
+               rule->queue = q_act->index;
+       } else {
+               rule->fdirflags = IXGBE_FDIRCMD_DROP;
        }
 
-       if (!attr) {
-               rte_flow_error_set(error, EINVAL,
-                                  RTE_FLOW_ERROR_TYPE_ATTR,
-                                  NULL, "NULL attribute.");
-               return -rte_errno;
+       /* set up mark action */
+       if (aux_action != NULL && aux_action->type == 
RTE_FLOW_ACTION_TYPE_MARK) {
+               const struct rte_flow_action_mark *mark = aux_action->conf;
+               rule->soft_id = mark->id;
        }
 
        /**
@@ -2552,7 +2448,56 @@ ixgbe_parse_fdir_filter_tunnel(const struct 
rte_flow_attr *attr,
         * Do nothing.
         */
 
-       return ixgbe_parse_fdir_act_attr(attr, actions, rule, error);
+       return 0;
+}
+
+/*
+ * Check flow director actions
+ */
+static int
+ixgbe_fdir_actions_check(const struct ci_flow_actions *parsed_actions,
+       const struct ci_flow_actions_check_param *param __rte_unused,
+       struct rte_flow_error *error)
+{
+       const enum rte_flow_action_type fwd_actions[] = {
+               RTE_FLOW_ACTION_TYPE_QUEUE,
+               RTE_FLOW_ACTION_TYPE_DROP,
+               RTE_FLOW_ACTION_TYPE_END
+       };
+       const struct rte_flow_action *action, *drop_action = NULL;
+
+       /* do the generic checks first */
+       int ret = ixgbe_flow_actions_check(parsed_actions, param, error);
+       if (ret)
+               return ret;
+
+       /* first action must be a forwarding action */
+       action = parsed_actions->actions[0];
+       if (!ci_flow_action_type_in_list(action->type, fwd_actions)) {
+               return rte_flow_error_set(error, EINVAL, 
RTE_FLOW_ERROR_TYPE_ACTION,
+                                         action, "First action must be QUEUE 
or DROP");
+       }
+       /* remember if we have a drop action */
+       if (action->type == RTE_FLOW_ACTION_TYPE_DROP) {
+               drop_action = action;
+       }
+
+       /* second action, if specified, must not be a forwarding action */
+       action = parsed_actions->actions[1];
+       if (action != NULL && ci_flow_action_type_in_list(action->type, 
fwd_actions)) {
+               return rte_flow_error_set(error, EINVAL, 
RTE_FLOW_ERROR_TYPE_ACTION,
+                                         action, "Conflicting actions");
+       }
+       /* if we didn't have a drop action before but now we do, remember that 
*/
+       if (drop_action == NULL && action != NULL && action->type == 
RTE_FLOW_ACTION_TYPE_DROP) {
+               drop_action = action;
+       }
+       /* drop must be the only action */
+       if (drop_action != NULL && action != NULL) {
+               return rte_flow_error_set(error, EINVAL, 
RTE_FLOW_ERROR_TYPE_ACTION,
+                                         action, "Conflicting actions");
+       }
+       return 0;
 }
 
 static int
@@ -2566,24 +2511,45 @@ ixgbe_parse_fdir_filter(struct rte_eth_dev *dev,
        int ret;
        struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
        struct rte_eth_fdir_conf *fdir_conf = IXGBE_DEV_FDIR_CONF(dev);
+       struct ci_flow_actions parsed_actions;
+       struct ci_flow_actions_check_param ap_param = {
+               .allowed_types = (const enum rte_flow_action_type[]){
+                       /* queue/mark/drop allowed here */
+                       RTE_FLOW_ACTION_TYPE_QUEUE,
+                       RTE_FLOW_ACTION_TYPE_DROP,
+                       RTE_FLOW_ACTION_TYPE_MARK,
+                       RTE_FLOW_ACTION_TYPE_END
+               },
+               .driver_ctx = dev,
+               .check = ixgbe_fdir_actions_check
+       };
+
+       if (hw->mac.type != ixgbe_mac_82599EB &&
+                       hw->mac.type != ixgbe_mac_X540 &&
+                       hw->mac.type != ixgbe_mac_X550 &&
+                       hw->mac.type != ixgbe_mac_X550EM_x &&
+                       hw->mac.type != ixgbe_mac_X550EM_a &&
+                       hw->mac.type != ixgbe_mac_E610)
+               return -ENOTSUP;
+
+       /* validate attributes */
+       ret = ci_flow_check_attr(attr, NULL, error);
+       if (ret)
+               return ret;
+
+       /* parse requested actions */
+       ret = ci_flow_check_actions(actions, &ap_param, &parsed_actions, error);
+       if (ret)
+               return ret;
+
        fdir_conf->drop_queue = IXGBE_FDIR_DROP_QUEUE;
 
-       if (hw->mac.type != ixgbe_mac_82599EB &&
-               hw->mac.type != ixgbe_mac_X540 &&
-               hw->mac.type != ixgbe_mac_X550 &&
-               hw->mac.type != ixgbe_mac_X550EM_x &&
-               hw->mac.type != ixgbe_mac_X550EM_a &&
-               hw->mac.type != ixgbe_mac_E610)
-               return -ENOTSUP;
-
-       ret = ixgbe_parse_fdir_filter_normal(dev, attr, pattern,
-                                       actions, rule, error);
+       ret = ixgbe_parse_fdir_filter_normal(dev, pattern, &parsed_actions, 
rule, error);
 
        if (!ret)
                goto step_next;
 
-       ret = ixgbe_parse_fdir_filter_tunnel(attr, pattern,
-                                       actions, rule, error);
+       ret = ixgbe_parse_fdir_filter_tunnel(pattern, &parsed_actions, rule, 
error);
 
        if (ret)
                return ret;
-- 
2.47.3

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