common/mlx5: introduce common library
[dpdk.git] / drivers / net / mlx5 / mlx5_flow_verbs.c
index 55aa805..9231451 100644 (file)
 #include <rte_malloc.h>
 #include <rte_ip.h>
 
-#include "mlx5.h"
+#include <mlx5_glue.h>
+#include <mlx5_prm.h>
+
 #include "mlx5_defs.h"
+#include "mlx5.h"
 #include "mlx5_flow.h"
-#include "mlx5_glue.h"
-#include "mlx5_prm.h"
 #include "mlx5_rxtx.h"
 
 #define VERBS_SPEC_INNER(item_flags) \
@@ -124,7 +125,7 @@ flow_verbs_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id)
        int ret;
 
        if (shared) {
-               LIST_FOREACH(cnt, &priv->flow_counters, next) {
+               TAILQ_FOREACH(cnt, &priv->sh->cmng.flow_counters, next) {
                        if (cnt->shared && cnt->id == id) {
                                cnt->ref_cnt++;
                                return cnt;
@@ -144,7 +145,7 @@ flow_verbs_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id)
        /* Create counter with Verbs. */
        ret = flow_verbs_counter_create(dev, cnt);
        if (!ret) {
-               LIST_INSERT_HEAD(&priv->flow_counters, cnt, next);
+               TAILQ_INSERT_HEAD(&priv->sh->cmng.flow_counters, cnt, next);
                return cnt;
        }
        /* Some error occurred in Verbs library. */
@@ -156,19 +157,24 @@ flow_verbs_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id)
 /**
  * Release a flow counter.
  *
+ * @param[in] dev
+ *   Pointer to the Ethernet device structure.
  * @param[in] counter
  *   Pointer to the counter handler.
  */
 static void
-flow_verbs_counter_release(struct mlx5_flow_counter *counter)
+flow_verbs_counter_release(struct rte_eth_dev *dev,
+                          struct mlx5_flow_counter *counter)
 {
+       struct mlx5_priv *priv = dev->data->dev_private;
+
        if (--counter->ref_cnt == 0) {
 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
                claim_zero(mlx5_glue->destroy_counter_set(counter->cs));
 #elif defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
                claim_zero(mlx5_glue->destroy_counters(counter->cs));
 #endif
-               LIST_REMOVE(counter, next);
+               TAILQ_REMOVE(&priv->sh->cmng.flow_counters, counter, next);
                rte_free(counter);
        }
 }
@@ -186,7 +192,7 @@ flow_verbs_counter_query(struct rte_eth_dev *dev __rte_unused,
 {
 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) || \
        defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
-       if (flow->actions & MLX5_FLOW_ACTION_COUNT) {
+       if (flow->counter && flow->counter->cs) {
                struct rte_flow_query_count *qc = data;
                uint64_t counters[2] = {0, 0};
 #if defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42)
@@ -386,6 +392,9 @@ flow_verbs_translate_item_vlan(struct mlx5_flow *dev_flow,
                flow_verbs_spec_add(&dev_flow->verbs, &eth, size);
        else
                flow_verbs_item_vlan_update(dev_flow->verbs.attr, &eth);
+       if (!tunnel)
+               dev_flow->verbs.vf_vlan.tag =
+                       rte_be_to_cpu_16(spec->tci) & 0x0fff;
 }
 
 /**
@@ -480,17 +489,17 @@ flow_verbs_translate_item_ipv6(struct mlx5_flow *dev_flow,
                vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow);
                vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow);
                ipv6.val.flow_label =
-                       rte_cpu_to_be_32((vtc_flow_val & IPV6_HDR_FL_MASK) >>
-                                        IPV6_HDR_FL_SHIFT);
-               ipv6.val.traffic_class = (vtc_flow_val & IPV6_HDR_TC_MASK) >>
-                                        IPV6_HDR_TC_SHIFT;
+                       rte_cpu_to_be_32((vtc_flow_val & RTE_IPV6_HDR_FL_MASK) >>
+                                        RTE_IPV6_HDR_FL_SHIFT);
+               ipv6.val.traffic_class = (vtc_flow_val & RTE_IPV6_HDR_TC_MASK) >>
+                                        RTE_IPV6_HDR_TC_SHIFT;
                ipv6.val.next_hdr = spec->hdr.proto;
                ipv6.val.hop_limit = spec->hdr.hop_limits;
                ipv6.mask.flow_label =
-                       rte_cpu_to_be_32((vtc_flow_mask & IPV6_HDR_FL_MASK) >>
-                                        IPV6_HDR_FL_SHIFT);
-               ipv6.mask.traffic_class = (vtc_flow_mask & IPV6_HDR_TC_MASK) >>
-                                         IPV6_HDR_TC_SHIFT;
+                       rte_cpu_to_be_32((vtc_flow_mask & RTE_IPV6_HDR_FL_MASK) >>
+                                        RTE_IPV6_HDR_FL_SHIFT);
+               ipv6.mask.traffic_class = (vtc_flow_mask & RTE_IPV6_HDR_TC_MASK) >>
+                                         RTE_IPV6_HDR_TC_SHIFT;
                ipv6.mask.next_hdr = mask->hdr.proto;
                ipv6.mask.hop_limit = mask->hdr.hop_limits;
                /* Remove unwanted bits from values. */
@@ -856,8 +865,8 @@ flow_verbs_translate_action_queue(struct mlx5_flow *dev_flow,
        const struct rte_flow_action_queue *queue = action->conf;
        struct rte_flow *flow = dev_flow->flow;
 
-       if (flow->queue)
-               (*flow->queue)[0] = queue->index;
+       if (flow->rss.queue)
+               (*flow->rss.queue)[0] = queue->index;
        flow->rss.queue_num = 1;
 }
 
@@ -881,16 +890,17 @@ flow_verbs_translate_action_rss(struct mlx5_flow *dev_flow,
        const uint8_t *rss_key;
        struct rte_flow *flow = dev_flow->flow;
 
-       if (flow->queue)
-               memcpy((*flow->queue), rss->queue,
+       if (flow->rss.queue)
+               memcpy((*flow->rss.queue), rss->queue,
                       rss->queue_num * sizeof(uint16_t));
        flow->rss.queue_num = rss->queue_num;
        /* NULL RSS key indicates default RSS key. */
        rss_key = !rss->key ? rss_hash_default_key : rss->key;
-       memcpy(flow->key, rss_key, MLX5_RSS_HASH_KEY_LEN);
-       /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
-       flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types;
-       flow->rss.level = rss->level;
+       memcpy(flow->rss.key, rss_key, MLX5_RSS_HASH_KEY_LEN);
+       /*
+        * rss->level and rss.types should be set in advance when expanding
+        * items for RSS.
+        */
 }
 
 /**
@@ -1008,6 +1018,8 @@ flow_verbs_translate_action_count(struct mlx5_flow *dev_flow,
  *   Pointer to the list of items.
  * @param[in] actions
  *   Pointer to the list of actions.
+ * @param[in] external
+ *   This flow rule is created by request external to PMD.
  * @param[out] error
  *   Pointer to the error structure.
  *
@@ -1019,6 +1031,7 @@ flow_verbs_validate(struct rte_eth_dev *dev,
                    const struct rte_flow_attr *attr,
                    const struct rte_flow_item items[],
                    const struct rte_flow_action actions[],
+                   bool external __rte_unused,
                    struct rte_flow_error *error)
 {
        int ret;
@@ -1026,6 +1039,7 @@ flow_verbs_validate(struct rte_eth_dev *dev,
        uint64_t item_flags = 0;
        uint64_t last_item = 0;
        uint8_t next_protocol = 0xff;
+       uint16_t ether_type = 0;
 
        if (items == NULL)
                return -1;
@@ -1046,20 +1060,44 @@ flow_verbs_validate(struct rte_eth_dev *dev,
                                return ret;
                        last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
                                             MLX5_FLOW_LAYER_OUTER_L2;
+                       if (items->mask != NULL && items->spec != NULL) {
+                               ether_type =
+                                       ((const struct rte_flow_item_eth *)
+                                        items->spec)->type;
+                               ether_type &=
+                                       ((const struct rte_flow_item_eth *)
+                                        items->mask)->type;
+                               ether_type = rte_be_to_cpu_16(ether_type);
+                       } else {
+                               ether_type = 0;
+                       }
                        break;
                case RTE_FLOW_ITEM_TYPE_VLAN:
                        ret = mlx5_flow_validate_item_vlan(items, item_flags,
-                                                          error);
+                                                          dev, error);
                        if (ret < 0)
                                return ret;
                        last_item = tunnel ? (MLX5_FLOW_LAYER_INNER_L2 |
                                              MLX5_FLOW_LAYER_INNER_VLAN) :
                                             (MLX5_FLOW_LAYER_OUTER_L2 |
                                              MLX5_FLOW_LAYER_OUTER_VLAN);
+                       if (items->mask != NULL && items->spec != NULL) {
+                               ether_type =
+                                       ((const struct rte_flow_item_vlan *)
+                                        items->spec)->inner_type;
+                               ether_type &=
+                                       ((const struct rte_flow_item_vlan *)
+                                        items->mask)->inner_type;
+                               ether_type = rte_be_to_cpu_16(ether_type);
+                       } else {
+                               ether_type = 0;
+                       }
                        break;
                case RTE_FLOW_ITEM_TYPE_IPV4:
                        ret = mlx5_flow_validate_item_ipv4(items, item_flags,
-                                                          NULL, error);
+                                                          last_item,
+                                                          ether_type, NULL,
+                                                          error);
                        if (ret < 0)
                                return ret;
                        last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
@@ -1080,7 +1118,9 @@ flow_verbs_validate(struct rte_eth_dev *dev,
                        break;
                case RTE_FLOW_ITEM_TYPE_IPV6:
                        ret = mlx5_flow_validate_item_ipv6(items, item_flags,
-                                                          NULL, error);
+                                                          last_item,
+                                                          ether_type, NULL,
+                                                          error);
                        if (ret < 0)
                                return ret;
                        last_item = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
@@ -1216,6 +1256,18 @@ flow_verbs_validate(struct rte_eth_dev *dev,
                                                  "action not supported");
                }
        }
+       /*
+        * Validate the drop action mutual exclusion with other actions.
+        * Drop action is mutually-exclusive with any other action, except for
+        * Count action.
+        */
+       if ((action_flags & MLX5_FLOW_ACTION_DROP) &&
+           (action_flags & ~(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_COUNT)))
+               return rte_flow_error_set(error, EINVAL,
+                                         RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+                                         "Drop action is mutually-exclusive "
+                                         "with any other action, except for "
+                                         "Count action");
        if (!(action_flags & MLX5_FLOW_FATE_ACTIONS))
                return rte_flow_error_set(error, EINVAL,
                                          RTE_FLOW_ERROR_TYPE_ACTION, actions,
@@ -1354,22 +1406,23 @@ flow_verbs_prepare(const struct rte_flow_attr *attr __rte_unused,
                   const struct rte_flow_action actions[],
                   struct rte_flow_error *error)
 {
-       uint32_t size = sizeof(struct mlx5_flow) + sizeof(struct ibv_flow_attr);
-       struct mlx5_flow *flow;
+       size_t size = sizeof(struct mlx5_flow) + sizeof(struct ibv_flow_attr);
+       struct mlx5_flow *dev_flow;
 
        size += flow_verbs_get_actions_size(actions);
        size += flow_verbs_get_items_size(items);
-       flow = rte_calloc(__func__, 1, size, 0);
-       if (!flow) {
+       dev_flow = rte_calloc(__func__, 1, size, 0);
+       if (!dev_flow) {
                rte_flow_error_set(error, ENOMEM,
                                   RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
                                   "not enough memory to create flow");
                return NULL;
        }
-       flow->verbs.attr = (void *)(flow + 1);
-       flow->verbs.specs =
-               (uint8_t *)(flow + 1) + sizeof(struct ibv_flow_attr);
-       return flow;
+       dev_flow->verbs.attr = (void *)(dev_flow + 1);
+       dev_flow->verbs.specs = (void *)(dev_flow->verbs.attr + 1);
+       dev_flow->ingress = attr->ingress;
+       dev_flow->transfer = attr->transfer;
+       return dev_flow;
 }
 
 /**
@@ -1399,7 +1452,6 @@ flow_verbs_translate(struct rte_eth_dev *dev,
                     const struct rte_flow_action actions[],
                     struct rte_flow_error *error)
 {
-       struct rte_flow *flow = dev_flow->flow;
        uint64_t item_flags = 0;
        uint64_t action_flags = 0;
        uint64_t priority = attr->priority;
@@ -1449,7 +1501,7 @@ flow_verbs_translate(struct rte_eth_dev *dev,
                                                  "action not supported");
                }
        }
-       flow->actions = action_flags;
+       dev_flow->actions = action_flags;
        for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
                int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
 
@@ -1476,7 +1528,7 @@ flow_verbs_translate(struct rte_eth_dev *dev,
                        flow_verbs_translate_item_ipv4(dev_flow, items,
                                                       item_flags);
                        subpriority = MLX5_PRIORITY_MAP_L3;
-                       dev_flow->verbs.hash_fields |=
+                       dev_flow->hash_fields |=
                                mlx5_flow_hashfields_adjust
                                        (dev_flow, tunnel,
                                         MLX5_IPV4_LAYER_TYPES,
@@ -1488,7 +1540,7 @@ flow_verbs_translate(struct rte_eth_dev *dev,
                        flow_verbs_translate_item_ipv6(dev_flow, items,
                                                       item_flags);
                        subpriority = MLX5_PRIORITY_MAP_L3;
-                       dev_flow->verbs.hash_fields |=
+                       dev_flow->hash_fields |=
                                mlx5_flow_hashfields_adjust
                                        (dev_flow, tunnel,
                                         MLX5_IPV6_LAYER_TYPES,
@@ -1500,7 +1552,7 @@ flow_verbs_translate(struct rte_eth_dev *dev,
                        flow_verbs_translate_item_tcp(dev_flow, items,
                                                      item_flags);
                        subpriority = MLX5_PRIORITY_MAP_L4;
-                       dev_flow->verbs.hash_fields |=
+                       dev_flow->hash_fields |=
                                mlx5_flow_hashfields_adjust
                                        (dev_flow, tunnel, ETH_RSS_TCP,
                                         (IBV_RX_HASH_SRC_PORT_TCP |
@@ -1512,7 +1564,7 @@ flow_verbs_translate(struct rte_eth_dev *dev,
                        flow_verbs_translate_item_udp(dev_flow, items,
                                                      item_flags);
                        subpriority = MLX5_PRIORITY_MAP_L4;
-                       dev_flow->verbs.hash_fields |=
+                       dev_flow->hash_fields |=
                                mlx5_flow_hashfields_adjust
                                        (dev_flow, tunnel, ETH_RSS_UDP,
                                         (IBV_RX_HASH_SRC_PORT_UDP |
@@ -1581,12 +1633,16 @@ flow_verbs_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
                        verbs->flow = NULL;
                }
                if (verbs->hrxq) {
-                       if (flow->actions & MLX5_FLOW_ACTION_DROP)
+                       if (dev_flow->actions & MLX5_FLOW_ACTION_DROP)
                                mlx5_hrxq_drop_release(dev);
                        else
                                mlx5_hrxq_release(dev, verbs->hrxq);
                        verbs->hrxq = NULL;
                }
+               if (dev_flow->verbs.vf_vlan.tag &&
+                   dev_flow->verbs.vf_vlan.created) {
+                       mlx5_vlan_vmwa_release(dev, &dev_flow->verbs.vf_vlan);
+               }
        }
 }
 
@@ -1612,7 +1668,7 @@ flow_verbs_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
                rte_free(dev_flow);
        }
        if (flow->counter) {
-               flow_verbs_counter_release(flow->counter);
+               flow_verbs_counter_release(dev, flow->counter);
                flow->counter = NULL;
        }
 }
@@ -1634,13 +1690,14 @@ static int
 flow_verbs_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
                 struct rte_flow_error *error)
 {
+       struct mlx5_priv *priv = dev->data->dev_private;
        struct mlx5_flow_verbs *verbs;
        struct mlx5_flow *dev_flow;
        int err;
 
        LIST_FOREACH(dev_flow, &flow->dev_flows, next) {
                verbs = &dev_flow->verbs;
-               if (flow->actions & MLX5_FLOW_ACTION_DROP) {
+               if (dev_flow->actions & MLX5_FLOW_ACTION_DROP) {
                        verbs->hrxq = mlx5_hrxq_drop_new(dev);
                        if (!verbs->hrxq) {
                                rte_flow_error_set
@@ -1652,19 +1709,20 @@ flow_verbs_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
                } else {
                        struct mlx5_hrxq *hrxq;
 
-                       hrxq = mlx5_hrxq_get(dev, flow->key,
+                       assert(flow->rss.queue);
+                       hrxq = mlx5_hrxq_get(dev, flow->rss.key,
                                             MLX5_RSS_HASH_KEY_LEN,
-                                            verbs->hash_fields,
-                                            (*flow->queue),
+                                            dev_flow->hash_fields,
+                                            (*flow->rss.queue),
                                             flow->rss.queue_num);
                        if (!hrxq)
-                               hrxq = mlx5_hrxq_new(dev, flow->key,
+                               hrxq = mlx5_hrxq_new(dev, flow->rss.key,
                                                     MLX5_RSS_HASH_KEY_LEN,
-                                                    verbs->hash_fields,
-                                                    (*flow->queue),
+                                                    dev_flow->hash_fields,
+                                                    (*flow->rss.queue),
                                                     flow->rss.queue_num,
                                                     !!(dev_flow->layers &
-                                                     MLX5_FLOW_LAYER_TUNNEL));
+                                                      MLX5_FLOW_LAYER_TUNNEL));
                        if (!hrxq) {
                                rte_flow_error_set
                                        (error, rte_errno,
@@ -1683,6 +1741,17 @@ flow_verbs_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
                                           "hardware refuses to create flow");
                        goto error;
                }
+               if (priv->vmwa_context &&
+                   dev_flow->verbs.vf_vlan.tag &&
+                   !dev_flow->verbs.vf_vlan.created) {
+                       /*
+                        * The rule contains the VLAN pattern.
+                        * For VF we are going to create VLAN
+                        * interface to make hypervisor set correct
+                        * e-Switch vport context.
+                        */
+                       mlx5_vlan_vmwa_acquire(dev, &dev_flow->verbs.vf_vlan);
+               }
        }
        return 0;
 error:
@@ -1690,12 +1759,16 @@ error:
        LIST_FOREACH(dev_flow, &flow->dev_flows, next) {
                verbs = &dev_flow->verbs;
                if (verbs->hrxq) {
-                       if (flow->actions & MLX5_FLOW_ACTION_DROP)
+                       if (dev_flow->actions & MLX5_FLOW_ACTION_DROP)
                                mlx5_hrxq_drop_release(dev);
                        else
                                mlx5_hrxq_release(dev, verbs->hrxq);
                        verbs->hrxq = NULL;
                }
+               if (dev_flow->verbs.vf_vlan.tag &&
+                   dev_flow->verbs.vf_vlan.created) {
+                       mlx5_vlan_vmwa_release(dev, &dev_flow->verbs.vf_vlan);
+               }
        }
        rte_errno = err; /* Restore rte_errno. */
        return -rte_errno;