diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 99dade7..af94dbe 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -326,6 +326,10 @@ enum index {
 	ACTION_SET_META,
 	ACTION_SET_META_DATA,
 	ACTION_SET_META_MASK,
+	ACTION_SET_IPV4_DSCP,
+	ACTION_SET_IPV4_DSCP_VALUE,
+	ACTION_SET_IPV6_DSCP,
+	ACTION_SET_IPV6_DSCP_VALUE,
 };
 
 /** Maximum size for pattern in struct rte_flow_item_raw. */
@@ -1087,6 +1091,8 @@ struct parse_action_priv {
 	ACTION_RAW_DECAP,
 	ACTION_SET_TAG,
 	ACTION_SET_META,
+	ACTION_SET_IPV4_DSCP,
+	ACTION_SET_IPV6_DSCP,
 	ZERO,
 };
 
@@ -1300,6 +1306,18 @@ struct parse_action_priv {
 	ZERO,
 };
 
+static const enum index action_set_ipv4_dscp[] = {
+	ACTION_SET_IPV4_DSCP_VALUE,
+	ACTION_NEXT,
+	ZERO,
+};
+
+static const enum index action_set_ipv6_dscp[] = {
+	ACTION_SET_IPV6_DSCP_VALUE,
+	ACTION_NEXT,
+	ZERO,
+};
+
 static int parse_set_raw_encap_decap(struct context *, const struct token *,
 				     const char *, unsigned int,
 				     void *, unsigned int);
@@ -3493,6 +3511,38 @@ static int comp_set_raw_index(struct context *, const struct token *,
 			     (struct rte_flow_action_set_meta, mask)),
 		.call = parse_vc_conf,
 	},
+	[ACTION_SET_IPV4_DSCP] = {
+		.name = "set_ipv4_dscp",
+		.help = "set dscp value",
+		.priv = PRIV_ACTION(SET_IPV4_DSCP,
+			sizeof(struct rte_flow_action_set_dscp)),
+		.next = NEXT(action_set_ipv4_dscp),
+		.call = parse_vc,
+	},
+	[ACTION_SET_IPV4_DSCP_VALUE] = {
+		.name = "dscp_value",
+		.help = "new IPv4 DSCP value to set",
+		.next = NEXT(action_set_ipv4_dscp, NEXT_ENTRY(UNSIGNED)),
+		.args = ARGS(ARGS_ENTRY
+			     (struct rte_flow_action_set_dscp, dscp)),
+		.call = parse_vc_conf,
+	},
+	[ACTION_SET_IPV6_DSCP] = {
+		.name = "set_ipv6_dscp",
+		.help = "set DSCP value",
+		.priv = PRIV_ACTION(SET_IPV6_DSCP,
+			sizeof(struct rte_flow_action_set_dscp)),
+		.next = NEXT(action_set_ipv6_dscp),
+		.call = parse_vc,
+	},
+	[ACTION_SET_IPV6_DSCP_VALUE] = {
+		.name = "dscp_value",
+		.help = "new IPv6 DSCP value to set",
+		.next = NEXT(action_set_ipv6_dscp, NEXT_ENTRY(UNSIGNED)),
+		.args = ARGS(ARGS_ENTRY
+			     (struct rte_flow_action_set_dscp, dscp)),
+		.call = parse_vc_conf,
+	},
 };
 
 /** Remove and return last entry from argument stack. */
diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index a254c81..2f21309 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -2558,6 +2558,46 @@ the other path depending on HW capability.
    | ``mask`` | bit-mask applies to "data" |
    +----------+----------------------------+
 
+Action: ``SET_IPV4_DSCP``
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Set IPv4 DSCP.
+
+Modify DSCP in IPv4 header.
+
+It must be used with RTE_FLOW_ITEM_TYPE_IPV4 in pattern.
+Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
+
+.. _table_rte_flow_action_set_ipv4_dscp:
+
+.. table:: SET_IPV4_DSCP
+
+   +-----------+---------------------------------+
+   | Field     | Value                           |
+   +===========+=================================+
+   | ``dscp``  | DSCP in low 6 bits, rest ignore |
+   +-----------+---------------------------------+
+
+Action: ``SET_IPV6_DSCP``
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Set IPv6 DSCP.
+
+Modify DSCP in IPv6 header.
+
+It must be used with RTE_FLOW_ITEM_TYPE_IPV6 in pattern.
+Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
+
+.. _table_rte_flow_action_set_ipv6_dscp:
+
+.. table:: SET_IPV6_DSCP
+
+   +-----------+---------------------------------+
+   | Field     | Value                           |
+   +===========+=================================+
+   | ``dscp``  | DSCP in low 6 bits, rest ignore |
+   +-----------+---------------------------------+
+
 Negative types
 ~~~~~~~~~~~~~~
 
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 10aabf5..3baaacb 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -4228,6 +4228,14 @@ This section lists supported actions and their attributes, if any.
 
   - ``value {unsigned}``: Value to decrease TCP acknowledgment number by.
 
+- ``set_ipv4_dscp``: Set IPv4 DSCP value with specified value
+
+  - ``dscp_value {unsigned}``: The new DSCP value to be set
+
+- ``set_ipv6_dscp``: Set IPv6 DSCP value with specified value
+
+  - ``dscp_value {unsigned}``: The new DSCP value to be set
+
 Destroying flow rules
 ~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c
index 87a3e8c..b86aee3 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -168,6 +168,8 @@ struct rte_flow_desc_data {
 	MK_FLOW_ACTION(DEC_TCP_ACK, sizeof(rte_be32_t)),
 	MK_FLOW_ACTION(SET_TAG, sizeof(struct rte_flow_action_set_tag)),
 	MK_FLOW_ACTION(SET_META, sizeof(struct rte_flow_action_set_meta)),
+	MK_FLOW_ACTION(SET_IPV4_DSCP, sizeof(struct rte_flow_action_set_dscp)),
+	MK_FLOW_ACTION(SET_IPV6_DSCP, sizeof(struct rte_flow_action_set_dscp)),
 };
 
 int
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index 452d359..76bf080 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -2004,6 +2004,26 @@ enum rte_flow_action_type {
 	 * See struct rte_flow_action_set_meta.
 	 */
 	RTE_FLOW_ACTION_TYPE_SET_META,
+
+	/**
+	 * Modify IPv4 DSCP in the outermost IP header.
+	 *
+	 * If flow pattern does not define a valid RTE_FLOW_ITEM_TYPE_IPV4,
+	 * then the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
+	 *
+	 * See struct rte_flow_action_set_dscp.
+	 */
+	RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP,
+
+	/**
+	 * Modify IPv6 DSCP in the outermost IP header.
+	 *
+	 * If flow pattern does not define a valid RTE_FLOW_ITEM_TYPE_IPV6,
+	 * then the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
+	 *
+	 * See struct rte_flow_action_set_dscp.
+	 */
+	RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP,
 };
 
 /**
@@ -2530,6 +2550,17 @@ struct rte_flow_action_set_meta {
 	uint32_t mask;
 };
 
+/**
+ * RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP
+ * RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP
+ *
+ * Set the DSCP value for IPv4/IPv6 header.
+ * DSCP in low 6 bits, rest ignored.
+ */
+struct rte_flow_action_set_dscp {
+	uint8_t dscp;
+};
+
 /* Mbuf dynamic field offset for metadata. */
 extern int rte_flow_dynf_metadata_offs;
 
