net/softnic: add meter profile

[dpdk.git] / drivers / net / softnic / rte_eth_softnic_meter.c

diff --git a/drivers/net/softnic/rte_eth_softnic_meter.c b/drivers/net/softnic/rte_eth_softnic_meter.c
index 0a5409b..1222866 100644 (file)
--- a/drivers/net/softnic/rte_eth_softnic_meter.c
+++ b/drivers/net/softnic/rte_eth_softnic_meter.c
@@ -11,10 +11,130 @@
 
 #include "rte_eth_softnic_internals.h"
 
+int
+softnic_mtr_init(struct pmd_internals *p)
+{
+       /* Initialize meter profiles list */
+       TAILQ_INIT(&p->mtr.meter_profiles);
+
+       return 0;
+}
+
+void
+softnic_mtr_free(struct pmd_internals *p)
+{
+       /* Remove meter profiles */
+       for ( ; ; ) {
+               struct softnic_mtr_meter_profile *mp;
+
+               mp = TAILQ_FIRST(&p->mtr.meter_profiles);
+               if (mp == NULL)
+                       break;
+
+               TAILQ_REMOVE(&p->mtr.meter_profiles, mp, node);
+               free(mp);
+       }
+}
+
+struct softnic_mtr_meter_profile *
+softnic_mtr_meter_profile_find(struct pmd_internals *p,
+       uint32_t meter_profile_id)
+{
+       struct softnic_mtr_meter_profile_list *mpl = &p->mtr.meter_profiles;
+       struct softnic_mtr_meter_profile *mp;
+
+       TAILQ_FOREACH(mp, mpl, node)
+               if (meter_profile_id == mp->meter_profile_id)
+                       return mp;
+
+       return NULL;
+}
+
+static int
+meter_profile_check(struct rte_eth_dev *dev,
+       uint32_t meter_profile_id,
+       struct rte_mtr_meter_profile *profile,
+       struct rte_mtr_error *error)
+{
+       struct pmd_internals *p = dev->data->dev_private;
+       struct softnic_mtr_meter_profile *mp;
+
+       /* Meter profile ID must be valid. */
+       if (meter_profile_id == UINT32_MAX)
+               return -rte_mtr_error_set(error,
+                       EINVAL,
+                       RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+                       NULL,
+                       "Meter profile id not valid");
+
+       /* Meter profile must not exist. */
+       mp = softnic_mtr_meter_profile_find(p, meter_profile_id);
+       if (mp)
+               return -rte_mtr_error_set(error,
+                       EEXIST,
+                       RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
+                       NULL,
+                       "Meter prfile already exists");
+
+       /* Profile must not be NULL. */
+       if (profile == NULL)
+               return -rte_mtr_error_set(error,
+                       EINVAL,
+                       RTE_MTR_ERROR_TYPE_METER_PROFILE,
+                       NULL,
+                       "profile null");
+
+       /* Traffic metering algorithm : TRTCM_RFC2698 */
+       if (profile->alg != RTE_MTR_TRTCM_RFC2698)
+               return -rte_mtr_error_set(error,
+                       EINVAL,
+                       RTE_MTR_ERROR_TYPE_METER_PROFILE,
+                       NULL,
+                       "Metering alg not supported");
+
+       return 0;
+}
+
+/* MTR meter profile add */
+static int
+pmd_mtr_meter_profile_add(struct rte_eth_dev *dev,
+       uint32_t meter_profile_id,
+       struct rte_mtr_meter_profile *profile,
+       struct rte_mtr_error *error)
+{
+       struct pmd_internals *p = dev->data->dev_private;
+       struct softnic_mtr_meter_profile_list *mpl = &p->mtr.meter_profiles;
+       struct softnic_mtr_meter_profile *mp;
+       int status;
+
+       /* Check input params */
+       status = meter_profile_check(dev, meter_profile_id, profile, error);
+       if (status)
+               return status;
+
+       /* Memory allocation */
+       mp = calloc(1, sizeof(struct softnic_mtr_meter_profile));
+       if (mp == NULL)
+               return -rte_mtr_error_set(error,
+                       ENOMEM,
+                       RTE_MTR_ERROR_TYPE_UNSPECIFIED,
+                       NULL,
+                       "Memory alloc failed");
+
+       /* Fill in */
+       mp->meter_profile_id = meter_profile_id;
+       memcpy(&mp->params, profile, sizeof(mp->params));
+
+       /* Add to list */
+       TAILQ_INSERT_TAIL(mpl, mp, node);
+
+       return 0;
+}
+
 const struct rte_mtr_ops pmd_mtr_ops = {
        .capabilities_get = NULL,
 
-       .meter_profile_add = NULL,
+       .meter_profile_add = pmd_mtr_meter_profile_add,
        .meter_profile_delete = NULL,
 
        .create = NULL,