net/softnic: support flow flush

Add rte flow flush api for flushing
all the flows of the port.

Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>

diff --git a/drivers/net/softnic/rte_eth_softnic_flow.c b/drivers/net/softnic/rte_eth_softnic_flow.c
index 03d41bc..30aa6af 100644 (file)
--- a/drivers/net/softnic/rte_eth_softnic_flow.c
+++ b/drivers/net/softnic/rte_eth_softnic_flow.c
@@ -11,6 +11,7 @@
 #include <rte_string_fns.h>
 #include <rte_flow.h>
 #include <rte_flow_driver.h>
+#include <rte_tailq.h>
 
 #include "rte_eth_softnic_internals.h"
 #include "rte_eth_softnic.h"
@@ -1915,6 +1916,53 @@ pmd_flow_destroy(struct rte_eth_dev *dev,
        return 0;
 }
 
+static int
+pmd_flow_flush(struct rte_eth_dev *dev,
+       struct rte_flow_error *error)
+{
+       struct pmd_internals *softnic = dev->data->dev_private;
+       struct pipeline *pipeline;
+       int fail_to_del_rule = 0;
+       uint32_t i;
+
+       TAILQ_FOREACH(pipeline, &softnic->pipeline_list, node) {
+               /* Remove all the flows added to the tables. */
+               for (i = 0; i < pipeline->n_tables; i++) {
+                       struct softnic_table *table = &pipeline->table[i];
+                       struct rte_flow *flow;
+                       void *temp;
+                       int status;
+
+                       TAILQ_FOREACH_SAFE(flow, &table->flows, node, temp) {
+                               /* Rule delete. */
+                               status = softnic_pipeline_table_rule_delete
+                                               (softnic,
+                                               pipeline->name,
+                                               i,
+                                               &flow->match);
+                               if (status)
+                                       fail_to_del_rule = 1;
+                               /* Update dependencies */
+                               if (is_meter_action_enable(softnic, table))
+                                       flow_meter_owner_reset(softnic, flow);
+
+                               /* Flow delete. */
+                               TAILQ_REMOVE(&table->flows, flow, node);
+                               free(flow);
+                       }
+               }
+       }
+
+       if (fail_to_del_rule)
+               return rte_flow_error_set(error,
+                       EINVAL,
+                       RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+                       NULL,
+                       "Some of the rules could not be deleted");
+
+       return 0;
+}
+
 static int
 pmd_flow_query(struct rte_eth_dev *dev __rte_unused,
        struct rte_flow *flow,
@@ -1971,7 +2019,7 @@ const struct rte_flow_ops pmd_flow_ops = {
        .validate = pmd_flow_validate,
        .create = pmd_flow_create,
        .destroy = pmd_flow_destroy,
-       .flush = NULL,
+       .flush = pmd_flow_flush,
        .query = pmd_flow_query,
        .isolate = NULL,
 };