net/ice: enable flow redirect on switch

Enable flow redirect on switch, currently only
support VSI redirect.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/ice/ice_switch_filter.c b/drivers/net/ice/ice_switch_filter.c
index 686f9c3..55a5618 100644 (file)
--- a/drivers/net/ice/ice_switch_filter.c
+++ b/drivers/net/ice/ice_switch_filter.c
@@ -1420,6 +1420,78 @@ ice_switch_query(struct ice_adapter *ad __rte_unused,
        return -rte_errno;
 }
 
+static int
+ice_switch_redirect(struct ice_adapter *ad,
+                   struct rte_flow *flow,
+                   struct ice_flow_redirect *rd)
+{
+       struct ice_rule_query_data *rdata = flow->rule;
+       struct ice_adv_fltr_mgmt_list_entry *list_itr;
+       struct ice_adv_lkup_elem *lkups_dp = NULL;
+       struct LIST_HEAD_TYPE *list_head;
+       struct ice_adv_rule_info rinfo;
+       struct ice_hw *hw = &ad->hw;
+       struct ice_switch_info *sw;
+       uint16_t lkups_cnt;
+       int ret;
+
+       sw = hw->switch_info;
+       if (!sw->recp_list[rdata->rid].recp_created)
+               return -EINVAL;
+
+       if (rd->type != ICE_FLOW_REDIRECT_VSI)
+               return -ENOTSUP;
+
+       list_head = &sw->recp_list[rdata->rid].filt_rules;
+       LIST_FOR_EACH_ENTRY(list_itr, list_head, ice_adv_fltr_mgmt_list_entry,
+                           list_entry) {
+               rinfo = list_itr->rule_info;
+               if (rinfo.fltr_rule_id == rdata->rule_id &&
+                   rinfo.sw_act.fltr_act == ICE_FWD_TO_VSI &&
+                   rinfo.sw_act.vsi_handle == rd->vsi_handle) {
+                       lkups_cnt = list_itr->lkups_cnt;
+                       lkups_dp = (struct ice_adv_lkup_elem *)
+                               ice_memdup(hw, list_itr->lkups,
+                                          sizeof(*list_itr->lkups) *
+                                          lkups_cnt, ICE_NONDMA_TO_NONDMA);
+                       if (!lkups_dp) {
+                               PMD_DRV_LOG(ERR, "Failed to allocate memory.");
+                               return -EINVAL;
+                       }
+
+                       break;
+               }
+       }
+
+       if (!lkups_dp)
+               return 0;
+
+       /* Remove the old rule */
+       ret = ice_rem_adv_rule(hw, list_itr->lkups,
+                              lkups_cnt, &rinfo);
+       if (ret) {
+               PMD_DRV_LOG(ERR, "Failed to delete the old rule %d",
+                           rdata->rule_id);
+               ret = -EINVAL;
+               goto out;
+       }
+
+       /* Update VSI context */
+       hw->vsi_ctx[rd->vsi_handle]->vsi_num = rd->new_vsi_num;
+
+       /* Replay the rule */
+       ret = ice_add_adv_rule(hw, lkups_dp, lkups_cnt,
+                              &rinfo, rdata);
+       if (ret) {
+               PMD_DRV_LOG(ERR, "Failed to replay the rule");
+               ret = -EINVAL;
+       }
+
+out:
+       ice_free(hw, lkups_dp);
+       return ret;
+}
+
 static int
 ice_switch_init(struct ice_adapter *ad)
 {
@@ -1465,6 +1537,7 @@ ice_flow_engine ice_switch_engine = {
        .create = ice_switch_create,
        .destroy = ice_switch_destroy,
        .query_count = ice_switch_query,
+       .redirect = ice_switch_redirect,
        .free = ice_switch_filter_rule_free,
        .type = ICE_FLOW_ENGINE_SWITCH,
 };