Add the corresponding logics to support the offload of
set IPv4 DSCP action.

Signed-off-by: Chaoyong He <chaoyong...@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderl...@corigine.com>
---
 doc/guides/nics/features/nfp.ini       |  1 +
 doc/guides/rel_notes/release_22_11.rst |  1 +
 drivers/net/nfp/nfp_flow.c             | 39 ++++++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+)

diff --git a/doc/guides/nics/features/nfp.ini b/doc/guides/nics/features/nfp.ini
index 2706fd2..7cb68b5 100644
--- a/doc/guides/nics/features/nfp.ini
+++ b/doc/guides/nics/features/nfp.ini
@@ -46,6 +46,7 @@ of_push_vlan         = Y
 of_set_vlan_pcp      = Y
 of_set_vlan_vid      = Y
 port_id              = Y
+set_ipv4_dscp        = Y
 set_ipv4_dst         = Y
 set_ipv4_src         = Y
 set_ipv6_dst         = Y
diff --git a/doc/guides/rel_notes/release_22_11.rst 
b/doc/guides/rel_notes/release_22_11.rst
index 2c8e38d..f06c5a1 100644
--- a/doc/guides/rel_notes/release_22_11.rst
+++ b/doc/guides/rel_notes/release_22_11.rst
@@ -183,6 +183,7 @@ New Features
     * Set the IP address of IPv4 and IPv6
     * Set the port number
     * Set the TTL
+    * Set the DSCP of IPv4
 
 * **Updated NXP dpaa2 driver.**
 
diff --git a/drivers/net/nfp/nfp_flow.c b/drivers/net/nfp/nfp_flow.c
index 61315b1..32076c6 100644
--- a/drivers/net/nfp/nfp_flow.c
+++ b/drivers/net/nfp/nfp_flow.c
@@ -690,6 +690,14 @@ struct nfp_mask_id_entry {
                                }
                        }
                        break;
+               case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
+                       PMD_DRV_LOG(DEBUG, "RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP 
detected");
+                       if (!ttl_tos_flag) {
+                               key_ls->act_size +=
+                                       sizeof(struct 
nfp_fl_act_set_ip4_ttl_tos);
+                               ttl_tos_flag = true;
+                       }
+                       break;
                default:
                        PMD_DRV_LOG(ERR, "Action type %d not supported.", 
action->type);
                        return -ENOTSUP;
@@ -1513,6 +1521,29 @@ struct nfp_mask_id_entry {
        tc_hl->reserved = 0;
 }
 
+static void
+nfp_flow_action_set_tos(char *act_data,
+               const struct rte_flow_action *action,
+               bool ttl_tos_flag)
+{
+       size_t act_size;
+       struct nfp_fl_act_set_ip4_ttl_tos *ttl_tos;
+       const struct rte_flow_action_set_dscp *tos_conf;
+
+       if (ttl_tos_flag)
+               ttl_tos = (struct nfp_fl_act_set_ip4_ttl_tos *)act_data - 1;
+       else
+               ttl_tos = (struct nfp_fl_act_set_ip4_ttl_tos *)act_data;
+
+       act_size = sizeof(struct nfp_fl_act_set_ip4_ttl_tos);
+       ttl_tos->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_TTL_TOS;
+       ttl_tos->head.len_lw = act_size >> NFP_FL_LW_SIZ;
+
+       tos_conf = (const struct rte_flow_action_set_dscp *)action->conf;
+       ttl_tos->ipv4_tos = tos_conf->dscp;
+       ttl_tos->reserved = 0;
+}
+
 static int
 nfp_flow_compile_action(__rte_unused struct nfp_flower_representor 
*representor,
                const struct rte_flow_action actions[],
@@ -1661,6 +1692,14 @@ struct nfp_mask_id_entry {
                                }
                        }
                        break;
+               case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
+                       PMD_DRV_LOG(DEBUG, "Process 
RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP");
+                       nfp_flow_action_set_tos(position, action, ttl_tos_flag);
+                       if (!ttl_tos_flag) {
+                               position += sizeof(struct 
nfp_fl_act_set_ip4_ttl_tos);
+                               ttl_tos_flag = true;
+                       }
+                       break;
                default:
                        PMD_DRV_LOG(ERR, "Unsupported action type: %d", 
action->type);
                        return -ENOTSUP;
-- 
1.8.3.1

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