New upstream version 18.11-rc1
[deb_dpdk.git] / drivers / net / enic / enic_flow.c
index 0cf04ae..bb9ed03 100644 (file)
@@ -289,6 +289,15 @@ static const enum rte_flow_action_type enic_supported_actions_v2_drop[] = {
        RTE_FLOW_ACTION_TYPE_END,
 };
 
+static const enum rte_flow_action_type enic_supported_actions_v2_count[] = {
+       RTE_FLOW_ACTION_TYPE_QUEUE,
+       RTE_FLOW_ACTION_TYPE_MARK,
+       RTE_FLOW_ACTION_TYPE_FLAG,
+       RTE_FLOW_ACTION_TYPE_DROP,
+       RTE_FLOW_ACTION_TYPE_COUNT,
+       RTE_FLOW_ACTION_TYPE_END,
+};
+
 /** Action capabilities indexed by NIC version information */
 static const struct enic_action_cap enic_action_cap[] = {
        [FILTER_ACTION_RQ_STEERING_FLAG] = {
@@ -303,6 +312,10 @@ static const struct enic_action_cap enic_action_cap[] = {
                .actions = enic_supported_actions_v2_drop,
                .copy_fn = enic_copy_action_v2,
        },
+       [FILTER_ACTION_COUNTER_FLAG] = {
+               .actions = enic_supported_actions_v2_count,
+               .copy_fn = enic_copy_action_v2,
+       },
 };
 
 static int
@@ -1068,6 +1081,10 @@ enic_copy_action_v2(const struct rte_flow_action actions[],
                        enic_action->flags |= FILTER_ACTION_DROP_FLAG;
                        break;
                }
+               case RTE_FLOW_ACTION_TYPE_COUNT: {
+                       enic_action->flags |= FILTER_ACTION_COUNTER_FLAG;
+                       break;
+               }
                case RTE_FLOW_ACTION_TYPE_VOID:
                        continue;
                default:
@@ -1112,7 +1129,9 @@ enic_get_action_cap(struct enic *enic)
        uint8_t actions;
 
        actions = enic->filter_actions;
-       if (actions & FILTER_ACTION_DROP_FLAG)
+       if (actions & FILTER_ACTION_COUNTER_FLAG)
+               ea = &enic_action_cap[FILTER_ACTION_COUNTER_FLAG];
+       else if (actions & FILTER_ACTION_DROP_FLAG)
                ea = &enic_action_cap[FILTER_ACTION_DROP_FLAG];
        else if (actions & FILTER_ACTION_FILTER_ID_FLAG)
                ea = &enic_action_cap[FILTER_ACTION_FILTER_ID_FLAG];
@@ -1395,8 +1414,10 @@ enic_flow_add_filter(struct enic *enic, struct filter_v2 *enic_filter,
                   struct rte_flow_error *error)
 {
        struct rte_flow *flow;
-       int ret;
-       u16 entry;
+       int err;
+       uint16_t entry;
+       int ctr_idx;
+       int last_max_flow_ctr;
 
        FLOW_TRACE();
 
@@ -1407,20 +1428,64 @@ enic_flow_add_filter(struct enic *enic, struct filter_v2 *enic_filter,
                return NULL;
        }
 
+       flow->counter_idx = -1;
+       last_max_flow_ctr = -1;
+       if (enic_action->flags & FILTER_ACTION_COUNTER_FLAG) {
+               if (!vnic_dev_counter_alloc(enic->vdev, (uint32_t *)&ctr_idx)) {
+                       rte_flow_error_set(error, ENOMEM,
+                                          RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+                                          NULL, "cannot allocate counter");
+                       goto unwind_flow_alloc;
+               }
+               flow->counter_idx = ctr_idx;
+               enic_action->counter_index = ctr_idx;
+
+               /* If index is the largest, increase the counter DMA size */
+               if (ctr_idx > enic->max_flow_counter) {
+                       err = vnic_dev_counter_dma_cfg(enic->vdev,
+                                                VNIC_FLOW_COUNTER_UPDATE_MSECS,
+                                                ctr_idx + 1);
+                       if (err) {
+                               rte_flow_error_set(error, -err,
+                                          RTE_FLOW_ERROR_TYPE_ACTION_CONF,
+                                          NULL, "counter DMA config failed");
+                               goto unwind_ctr_alloc;
+                       }
+                       last_max_flow_ctr = enic->max_flow_counter;
+                       enic->max_flow_counter = ctr_idx;
+               }
+       }
+
        /* entry[in] is the queue id, entry[out] is the filter Id for delete */
        entry = enic_action->rq_idx;
-       ret = vnic_dev_classifier(enic->vdev, CLSF_ADD, &entry, enic_filter,
+       err = vnic_dev_classifier(enic->vdev, CLSF_ADD, &entry, enic_filter,
                                  enic_action);
-       if (!ret) {
-               flow->enic_filter_id = entry;
-               flow->enic_filter = *enic_filter;
-       } else {
-               rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
+       if (err) {
+               rte_flow_error_set(error, -err, RTE_FLOW_ERROR_TYPE_HANDLE,
                                   NULL, "vnic_dev_classifier error");
-               rte_free(flow);
-               return NULL;
+               goto unwind_ctr_dma_cfg;
        }
+
+       flow->enic_filter_id = entry;
+       flow->enic_filter = *enic_filter;
+
        return flow;
+
+/* unwind if there are errors */
+unwind_ctr_dma_cfg:
+       if (last_max_flow_ctr != -1) {
+               /* reduce counter DMA size */
+               vnic_dev_counter_dma_cfg(enic->vdev,
+                                        VNIC_FLOW_COUNTER_UPDATE_MSECS,
+                                        last_max_flow_ctr + 1);
+               enic->max_flow_counter = last_max_flow_ctr;
+       }
+unwind_ctr_alloc:
+       if (flow->counter_idx != -1)
+               vnic_dev_counter_free(enic->vdev, ctr_idx);
+unwind_flow_alloc:
+       rte_free(flow);
+       return NULL;
 }
 
 /**
@@ -1435,18 +1500,29 @@ enic_flow_add_filter(struct enic *enic, struct filter_v2 *enic_filter,
  * @param error[out]
  */
 static int
-enic_flow_del_filter(struct enic *enic, u16 filter_id,
+enic_flow_del_filter(struct enic *enic, struct rte_flow *flow,
                   struct rte_flow_error *error)
 {
-       int ret;
+       u16 filter_id;
+       int err;
 
        FLOW_TRACE();
 
-       ret = vnic_dev_classifier(enic->vdev, CLSF_DEL, &filter_id, NULL, NULL);
-       if (!ret)
-               rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
+       filter_id = flow->enic_filter_id;
+       err = vnic_dev_classifier(enic->vdev, CLSF_DEL, &filter_id, NULL, NULL);
+       if (err) {
+               rte_flow_error_set(error, -err, RTE_FLOW_ERROR_TYPE_HANDLE,
                                   NULL, "vnic_dev_classifier failed");
-       return ret;
+               return -err;
+       }
+
+       if (flow->counter_idx != -1) {
+               if (!vnic_dev_counter_free(enic->vdev, flow->counter_idx))
+                       dev_err(enic, "counter free failed, idx: %d\n",
+                               flow->counter_idx);
+               flow->counter_idx = -1;
+       }
+       return 0;
 }
 
 /*
@@ -1529,9 +1605,10 @@ enic_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
        FLOW_TRACE();
 
        rte_spinlock_lock(&enic->flows_lock);
-       enic_flow_del_filter(enic, flow->enic_filter_id, error);
+       enic_flow_del_filter(enic, flow, error);
        LIST_REMOVE(flow, next);
        rte_spinlock_unlock(&enic->flows_lock);
+       rte_free(flow);
        return 0;
 }
 
@@ -1553,13 +1630,77 @@ enic_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
 
        while (!LIST_EMPTY(&enic->flows)) {
                flow = LIST_FIRST(&enic->flows);
-               enic_flow_del_filter(enic, flow->enic_filter_id, error);
+               enic_flow_del_filter(enic, flow, error);
                LIST_REMOVE(flow, next);
+               rte_free(flow);
        }
        rte_spinlock_unlock(&enic->flows_lock);
        return 0;
 }
 
+static int
+enic_flow_query_count(struct rte_eth_dev *dev,
+                     struct rte_flow *flow, void *data,
+                     struct rte_flow_error *error)
+{
+       struct enic *enic = pmd_priv(dev);
+       struct rte_flow_query_count *query;
+       uint64_t packets, bytes;
+
+       FLOW_TRACE();
+
+       if (flow->counter_idx == -1) {
+               return rte_flow_error_set(error, ENOTSUP,
+                                         RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+                                         NULL,
+                                         "flow does not have counter");
+       }
+       query = (struct rte_flow_query_count *)data;
+       if (!vnic_dev_counter_query(enic->vdev, flow->counter_idx,
+                                   !!query->reset, &packets, &bytes)) {
+               return rte_flow_error_set
+                       (error, EINVAL,
+                        RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+                        NULL,
+                        "cannot read counter");
+       }
+       query->hits_set = 1;
+       query->bytes_set = 1;
+       query->hits = packets;
+       query->bytes = bytes;
+       return 0;
+}
+
+static int
+enic_flow_query(struct rte_eth_dev *dev,
+               struct rte_flow *flow,
+               const struct rte_flow_action *actions,
+               void *data,
+               struct rte_flow_error *error)
+{
+       int ret = 0;
+
+       FLOW_TRACE();
+
+       for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+               switch (actions->type) {
+               case RTE_FLOW_ACTION_TYPE_VOID:
+                       break;
+               case RTE_FLOW_ACTION_TYPE_COUNT:
+                       ret = enic_flow_query_count(dev, flow, data, error);
+                       break;
+               default:
+                       return rte_flow_error_set(error, ENOTSUP,
+                                                 RTE_FLOW_ERROR_TYPE_ACTION,
+                                                 actions,
+                                                 "action not supported");
+               }
+               if (ret < 0)
+                       return ret;
+       }
+       return 0;
+}
+
 /**
  * Flow callback registration.
  *
@@ -1570,4 +1711,5 @@ const struct rte_flow_ops enic_flow_ops = {
        .create = enic_flow_create,
        .destroy = enic_flow_destroy,
        .flush = enic_flow_flush,
+       .query = enic_flow_query,
 };