net/ixgbe: create consistent filter
[dpdk.git] / drivers / net / ixgbe / ixgbe_flow.c
index 257cd6f..16b43d9 100644 (file)
@@ -157,10 +157,15 @@ ixgbe_flow_validate(__rte_unused struct rte_eth_dev *dev,
                const struct rte_flow_item pattern[],
                const struct rte_flow_action actions[],
                struct rte_flow_error *error);
+static struct rte_flow *ixgbe_flow_create(struct rte_eth_dev *dev,
+               const struct rte_flow_attr *attr,
+               const struct rte_flow_item pattern[],
+               const struct rte_flow_action actions[],
+               struct rte_flow_error *error);
 
 const struct rte_flow_ops ixgbe_flow_ops = {
        ixgbe_flow_validate,
-       NULL,
+       ixgbe_flow_create,
        NULL,
        ixgbe_flow_flush,
        NULL,
@@ -2436,6 +2441,193 @@ ixgbe_parse_fdir_filter(const struct rte_flow_attr *attr,
        return ret;
 }
 
+/**
+ * Create or destroy a flow rule.
+ * Theorically one rule can match more than one filters.
+ * We will let it use the filter which it hitt first.
+ * So, the sequence matters.
+ */
+static struct rte_flow *
+ixgbe_flow_create(struct rte_eth_dev *dev,
+                 const struct rte_flow_attr *attr,
+                 const struct rte_flow_item pattern[],
+                 const struct rte_flow_action actions[],
+                 struct rte_flow_error *error)
+{
+       int ret;
+       struct rte_eth_ntuple_filter ntuple_filter;
+       struct rte_eth_ethertype_filter ethertype_filter;
+       struct rte_eth_syn_filter syn_filter;
+       struct ixgbe_fdir_rule fdir_rule;
+       struct rte_eth_l2_tunnel_conf l2_tn_filter;
+       struct ixgbe_hw_fdir_info *fdir_info =
+               IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
+       struct rte_flow *flow = NULL;
+       struct ixgbe_ntuple_filter_ele *ntuple_filter_ptr;
+       struct ixgbe_ethertype_filter_ele *ethertype_filter_ptr;
+       struct ixgbe_eth_syn_filter_ele *syn_filter_ptr;
+       struct ixgbe_eth_l2_tunnel_conf_ele *l2_tn_filter_ptr;
+       struct ixgbe_fdir_rule_ele *fdir_rule_ptr;
+       struct ixgbe_flow_mem *ixgbe_flow_mem_ptr;
+
+       flow = rte_zmalloc("ixgbe_rte_flow", sizeof(struct rte_flow), 0);
+       if (!flow) {
+               PMD_DRV_LOG(ERR, "failed to allocate memory");
+               return (struct rte_flow *)flow;
+       }
+       ixgbe_flow_mem_ptr = rte_zmalloc("ixgbe_flow_mem",
+                       sizeof(struct ixgbe_flow_mem), 0);
+       if (!ixgbe_flow_mem_ptr) {
+               PMD_DRV_LOG(ERR, "failed to allocate memory");
+               rte_free(flow);
+               return NULL;
+       }
+       ixgbe_flow_mem_ptr->flow = flow;
+       TAILQ_INSERT_TAIL(&ixgbe_flow_list,
+                               ixgbe_flow_mem_ptr, entries);
+
+       memset(&ntuple_filter, 0, sizeof(struct rte_eth_ntuple_filter));
+       ret = ixgbe_parse_ntuple_filter(attr, pattern,
+                       actions, &ntuple_filter, error);
+       if (!ret) {
+               ret = ixgbe_add_del_ntuple_filter(dev, &ntuple_filter, TRUE);
+               if (!ret) {
+                       ntuple_filter_ptr = rte_zmalloc("ixgbe_ntuple_filter",
+                               sizeof(struct ixgbe_ntuple_filter_ele), 0);
+                       (void)rte_memcpy(&ntuple_filter_ptr->filter_info,
+                               &ntuple_filter,
+                               sizeof(struct rte_eth_ntuple_filter));
+                       TAILQ_INSERT_TAIL(&filter_ntuple_list,
+                               ntuple_filter_ptr, entries);
+                       flow->rule = ntuple_filter_ptr;
+                       flow->filter_type = RTE_ETH_FILTER_NTUPLE;
+                       return flow;
+               }
+               goto out;
+       }
+
+       memset(&ethertype_filter, 0, sizeof(struct rte_eth_ethertype_filter));
+       ret = ixgbe_parse_ethertype_filter(attr, pattern,
+                               actions, &ethertype_filter, error);
+       if (!ret) {
+               ret = ixgbe_add_del_ethertype_filter(dev,
+                               &ethertype_filter, TRUE);
+               if (!ret) {
+                       ethertype_filter_ptr = rte_zmalloc(
+                               "ixgbe_ethertype_filter",
+                               sizeof(struct ixgbe_ethertype_filter_ele), 0);
+                       (void)rte_memcpy(&ethertype_filter_ptr->filter_info,
+                               &ethertype_filter,
+                               sizeof(struct rte_eth_ethertype_filter));
+                       TAILQ_INSERT_TAIL(&filter_ethertype_list,
+                               ethertype_filter_ptr, entries);
+                       flow->rule = ethertype_filter_ptr;
+                       flow->filter_type = RTE_ETH_FILTER_ETHERTYPE;
+                       return flow;
+               }
+               goto out;
+       }
+
+       memset(&syn_filter, 0, sizeof(struct rte_eth_syn_filter));
+       ret = cons_parse_syn_filter(attr, pattern, actions, &syn_filter, error);
+       if (!ret) {
+               ret = ixgbe_syn_filter_set(dev, &syn_filter, TRUE);
+               if (!ret) {
+                       syn_filter_ptr = rte_zmalloc("ixgbe_syn_filter",
+                               sizeof(struct ixgbe_eth_syn_filter_ele), 0);
+                       (void)rte_memcpy(&syn_filter_ptr->filter_info,
+                               &syn_filter,
+                               sizeof(struct rte_eth_syn_filter));
+                       TAILQ_INSERT_TAIL(&filter_syn_list,
+                               syn_filter_ptr,
+                               entries);
+                       flow->rule = syn_filter_ptr;
+                       flow->filter_type = RTE_ETH_FILTER_SYN;
+                       return flow;
+               }
+               goto out;
+       }
+
+       memset(&fdir_rule, 0, sizeof(struct ixgbe_fdir_rule));
+       ret = ixgbe_parse_fdir_filter(attr, pattern,
+                               actions, &fdir_rule, error);
+       if (!ret) {
+               /* A mask cannot be deleted. */
+               if (fdir_rule.b_mask) {
+                       if (!fdir_info->mask_added) {
+                               /* It's the first time the mask is set. */
+                               rte_memcpy(&fdir_info->mask,
+                                       &fdir_rule.mask,
+                                       sizeof(struct ixgbe_hw_fdir_mask));
+                               ret = ixgbe_fdir_set_input_mask(dev);
+                               if (ret)
+                                       goto out;
+
+                               fdir_info->mask_added = TRUE;
+                       } else {
+                               /**
+                                * Only support one global mask,
+                                * all the masks should be the same.
+                                */
+                               ret = memcmp(&fdir_info->mask,
+                                       &fdir_rule.mask,
+                                       sizeof(struct ixgbe_hw_fdir_mask));
+                               if (ret)
+                                       goto out;
+                       }
+               }
+
+               if (fdir_rule.b_spec) {
+                       ret = ixgbe_fdir_filter_program(dev, &fdir_rule,
+                                       FALSE, FALSE);
+                       if (!ret) {
+                               fdir_rule_ptr = rte_zmalloc("ixgbe_fdir_filter",
+                                       sizeof(struct ixgbe_fdir_rule_ele), 0);
+                               (void)rte_memcpy(&fdir_rule_ptr->filter_info,
+                                       &fdir_rule,
+                                       sizeof(struct ixgbe_fdir_rule));
+                               TAILQ_INSERT_TAIL(&filter_fdir_list,
+                                       fdir_rule_ptr, entries);
+                               flow->rule = fdir_rule_ptr;
+                               flow->filter_type = RTE_ETH_FILTER_FDIR;
+
+                               return flow;
+                       }
+
+                       if (ret)
+                               goto out;
+               }
+
+               goto out;
+       }
+
+       memset(&l2_tn_filter, 0, sizeof(struct rte_eth_l2_tunnel_conf));
+       ret = cons_parse_l2_tn_filter(attr, pattern,
+                                       actions, &l2_tn_filter, error);
+       if (!ret) {
+               ret = ixgbe_dev_l2_tunnel_filter_add(dev, &l2_tn_filter, FALSE);
+               if (!ret) {
+                       l2_tn_filter_ptr = rte_zmalloc("ixgbe_l2_tn_filter",
+                               sizeof(struct ixgbe_eth_l2_tunnel_conf_ele), 0);
+                       (void)rte_memcpy(&l2_tn_filter_ptr->filter_info,
+                               &l2_tn_filter,
+                               sizeof(struct rte_eth_l2_tunnel_conf));
+                       TAILQ_INSERT_TAIL(&filter_l2_tunnel_list,
+                               l2_tn_filter_ptr, entries);
+                       flow->rule = l2_tn_filter_ptr;
+                       flow->filter_type = RTE_ETH_FILTER_L2_TUNNEL;
+                       return flow;
+               }
+       }
+
+out:
+       TAILQ_REMOVE(&ixgbe_flow_list,
+               ixgbe_flow_mem_ptr, entries);
+       rte_free(ixgbe_flow_mem_ptr);
+       rte_free(flow);
+       return NULL;
+}
+
 /**
  * Check if the flow rule is supported by ixgbe.
  * It only checkes the format. Don't guarantee the rule can be programmed into