net/sfc: support MARK and FLAG actions in flow API

Signed-off-by: Roman Zhukov <roman.zhukov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>

diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 6b6b5e0..63939ec 100644 (file)
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -201,6 +201,10 @@ Supported actions:
 
 - DROP
 
+- FLAG (supported only with ef10_essb Rx datapath)
+
+- MARK (supported only with ef10_essb Rx datapath)
+
 Validating flow rules depends on the firmware variant.
 
 Ethernet destinaton individual/group match

diff --git a/drivers/net/sfc/sfc_flow.c b/drivers/net/sfc/sfc_flow.c
index 2b5b831..e6b2ecf 100644 (file)
--- a/drivers/net/sfc/sfc_flow.c
+++ b/drivers/net/sfc/sfc_flow.c
@@ -23,6 +23,7 @@
 #include "sfc_filter.h"
 #include "sfc_flow.h"
 #include "sfc_log.h"
+#include "sfc_dp_rx.h"
 
 /*
  * At now flow API is implemented in such a manner that each
@@ -1500,6 +1501,22 @@ sfc_flow_filter_remove(struct sfc_adapter *sa,
        return rc;
 }
 
+static int
+sfc_flow_parse_mark(struct sfc_adapter *sa,
+                   const struct rte_flow_action_mark *mark,
+                   struct rte_flow *flow)
+{
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
+
+       if (mark == NULL || mark->id > encp->enc_filter_action_mark_max)
+               return EINVAL;
+
+       flow->spec.template.efs_flags |= EFX_FILTER_FLAG_ACTION_MARK;
+       flow->spec.template.efs_mark = mark->id;
+
+       return 0;
+}
+
 static int
 sfc_flow_parse_actions(struct sfc_adapter *sa,
                       const struct rte_flow_action actions[],
@@ -1507,10 +1524,13 @@ sfc_flow_parse_actions(struct sfc_adapter *sa,
                       struct rte_flow_error *error)
 {
        int rc;
+       const unsigned int dp_rx_features = sa->dp_rx->features;
        uint32_t actions_set = 0;
        const uint32_t fate_actions_mask = (1UL << RTE_FLOW_ACTION_TYPE_QUEUE) |
                                           (1UL << RTE_FLOW_ACTION_TYPE_RSS) |
                                           (1UL << RTE_FLOW_ACTION_TYPE_DROP);
+       const uint32_t mark_actions_mask = (1UL << RTE_FLOW_ACTION_TYPE_MARK) |
+                                          (1UL << RTE_FLOW_ACTION_TYPE_FLAG);
 
        if (actions == NULL) {
                rte_flow_error_set(error, EINVAL,
@@ -1569,6 +1589,45 @@ sfc_flow_parse_actions(struct sfc_adapter *sa,
                                EFX_FILTER_SPEC_RX_DMAQ_ID_DROP;
                        break;
 
+               case RTE_FLOW_ACTION_TYPE_FLAG:
+                       SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_FLAG,
+                                              actions_set);
+                       if ((actions_set & mark_actions_mask) != 0)
+                               goto fail_actions_overlap;
+
+                       if ((dp_rx_features & SFC_DP_RX_FEAT_FLOW_FLAG) == 0) {
+                               rte_flow_error_set(error, ENOTSUP,
+                                       RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+                                       "FLAG action is not supported on the current Rx datapath");
+                               return -rte_errno;
+                       }
+
+                       flow->spec.template.efs_flags |=
+                               EFX_FILTER_FLAG_ACTION_FLAG;
+                       break;
+
+               case RTE_FLOW_ACTION_TYPE_MARK:
+                       SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_MARK,
+                                              actions_set);
+                       if ((actions_set & mark_actions_mask) != 0)
+                               goto fail_actions_overlap;
+
+                       if ((dp_rx_features & SFC_DP_RX_FEAT_FLOW_MARK) == 0) {
+                               rte_flow_error_set(error, ENOTSUP,
+                                       RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+                                       "MARK action is not supported on the current Rx datapath");
+                               return -rte_errno;
+                       }
+
+                       rc = sfc_flow_parse_mark(sa, actions->conf, flow);
+                       if (rc != 0) {
+                               rte_flow_error_set(error, rc,
+                                       RTE_FLOW_ERROR_TYPE_ACTION, actions,
+                                       "Bad MARK action");
+                               return -rte_errno;
+                       }
+                       break;
+
                default:
                        rte_flow_error_set(error, ENOTSUP,
                                           RTE_FLOW_ERROR_TYPE_ACTION, actions,
@@ -1593,6 +1652,11 @@ fail_fate_actions:
                           "Cannot combine several fate-deciding actions, "
                           "choose between QUEUE, RSS or DROP");
        return -rte_errno;
+
+fail_actions_overlap:
+       rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions,
+                          "Overlapping actions are not supported");
+       return -rte_errno;
 }
 
 /**