This patch implements the NVGRE decap action in DV flow for MLX5 PMD.

Signed-off-by: Dekel Peled <dek...@mellanox.com>
---
 drivers/net/mlx5/mlx5_flow.h    |  4 ++++
 drivers/net/mlx5/mlx5_flow_dv.c | 19 +++++++++++++------
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index c03a3af..104a1e6 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -95,6 +95,7 @@
 #define MLX5_FLOW_ACTION_VXLAN_ENCAP (1u << 22)
 #define MLX5_FLOW_ACTION_VXLAN_DECAP (1u << 23)
 #define MLX5_FLOW_ACTION_NVGRE_ENCAP (1u << 24)
+#define MLX5_FLOW_ACTION_NVGRE_DECAP (1u << 25)
 
 #define MLX5_FLOW_FATE_ACTIONS \
        (MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)
@@ -102,6 +103,9 @@
 #define MLX5_FLOW_ENCAP_ACTIONS        \
        (MLX5_FLOW_ACTION_VXLAN_ENCAP | MLX5_FLOW_ACTION_NVGRE_ENCAP)
 
+#define MLX5_FLOW_DECAP_ACTIONS        \
+       (MLX5_FLOW_ACTION_VXLAN_DECAP | MLX5_FLOW_ACTION_NVGRE_DECAP)
+
 #ifndef IPPROTO_MPLS
 #define IPPROTO_MPLS 137
 #endif
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 7078397..b3ee237 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -126,8 +126,7 @@
                return rte_flow_error_set(error, EINVAL,
                                          RTE_FLOW_ERROR_TYPE_ACTION, NULL,
                                          "can't drop and encap in same flow");
-       if (action_flags & (MLX5_FLOW_ENCAP_ACTIONS |
-                           MLX5_FLOW_ACTION_VXLAN_DECAP))
+       if (action_flags & (MLX5_FLOW_ENCAP_ACTIONS | MLX5_FLOW_DECAP_ACTIONS))
                return rte_flow_error_set(error, EINVAL,
                                          RTE_FLOW_ERROR_TYPE_ACTION, NULL,
                                          "can only have a single encap or"
@@ -163,8 +162,7 @@
                return rte_flow_error_set(error, EINVAL,
                                          RTE_FLOW_ERROR_TYPE_ACTION, NULL,
                                          "can't drop and decap in same flow");
-       if (action_flags & (MLX5_FLOW_ENCAP_ACTIONS |
-                           MLX5_FLOW_ACTION_VXLAN_DECAP))
+       if (action_flags & (MLX5_FLOW_ENCAP_ACTIONS | MLX5_FLOW_DECAP_ACTIONS))
                return rte_flow_error_set(error, EINVAL,
                                          RTE_FLOW_ERROR_TYPE_ACTION, NULL,
                                          "can only have a single encap or"
@@ -737,11 +735,16 @@
                        ++actions_n;
                        break;
                case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
+               case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
                        ret = flow_dv_validate_action_l2_decap(action_flags,
                                                               attr, error);
                        if (ret < 0)
                                return ret;
-                       action_flags |= MLX5_FLOW_ACTION_VXLAN_DECAP;
+                       action_flags |= actions->type ==
+                                       RTE_FLOW_ACTION_TYPE_VXLAN_DECAP ?
+                                       MLX5_FLOW_ACTION_VXLAN_DECAP :
+                                       MLX5_FLOW_ACTION_NVGRE_DECAP;
+
                        ++actions_n;
                        break;
                default:
@@ -1532,6 +1535,7 @@
                actions_n++;
                break;
        case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
+       case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
                dev_flow->dv.actions[actions_n].type =
                        MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
                dev_flow->dv.actions[actions_n].action =
@@ -1540,7 +1544,10 @@
                        return -rte_errno;
                dev_flow->dv.encap_decap_verbs_action =
                        dev_flow->dv.actions[actions_n].action;
-               flow->actions |= MLX5_FLOW_ACTION_VXLAN_DECAP;
+               flow->actions |= action->type ==
+                                RTE_FLOW_ACTION_TYPE_VXLAN_DECAP ?
+                                MLX5_FLOW_ACTION_VXLAN_DECAP :
+                                MLX5_FLOW_ACTION_NVGRE_DECAP;
                actions_n++;
                break;
        default:
-- 
1.8.3.1

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