Add actions:
- INC_TCP_SEQ - Increase sequence number in the outermost TCP header.
- DEC_TCP_SEQ - Decrease sequence number in the outermost TCP header.
- INC_TCP_ACK - Increase acknowledgment number in the outermost TCP
                header.
- DEC_TCP_ACK - Decrease acknowledgment number in the outermost TCP
                header.

Original work by Xiaoyu Min.

Signed-off-by: Dekel Peled <dek...@mellanox.com>
---
 app/test-pmd/cmdline_flow.c                 | 100 ++++++++++++++++++++++++++++
 doc/guides/testpmd_app_ug/testpmd_funcs.rst |  16 +++++
 2 files changed, 116 insertions(+)

diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 36659a6..4b2c378 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -271,6 +271,14 @@ enum index {
        ACTION_SET_MAC_SRC_MAC_SRC,
        ACTION_SET_MAC_DST,
        ACTION_SET_MAC_DST_MAC_DST,
+       ACTION_INC_TCP_SEQ,
+       ACTION_INC_TCP_SEQ_VALUE,
+       ACTION_DEC_TCP_SEQ,
+       ACTION_DEC_TCP_SEQ_VALUE,
+       ACTION_INC_TCP_ACK,
+       ACTION_INC_TCP_ACK_VALUE,
+       ACTION_DEC_TCP_ACK,
+       ACTION_DEC_TCP_ACK_VALUE,
 };
 
 /** Maximum size for pattern in struct rte_flow_item_raw. */
@@ -884,6 +892,10 @@ struct parse_action_priv {
        ACTION_SET_TTL,
        ACTION_SET_MAC_SRC,
        ACTION_SET_MAC_DST,
+       ACTION_INC_TCP_SEQ,
+       ACTION_DEC_TCP_SEQ,
+       ACTION_INC_TCP_ACK,
+       ACTION_DEC_TCP_ACK,
        ZERO,
 };
 
@@ -1046,6 +1058,30 @@ struct parse_action_priv {
        ZERO,
 };
 
+static const enum index action_inc_tcp_seq[] = {
+       ACTION_INC_TCP_SEQ_VALUE,
+       ACTION_NEXT,
+       ZERO,
+};
+
+static const enum index action_dec_tcp_seq[] = {
+       ACTION_DEC_TCP_SEQ_VALUE,
+       ACTION_NEXT,
+       ZERO,
+};
+
+static const enum index action_inc_tcp_ack[] = {
+       ACTION_INC_TCP_ACK_VALUE,
+       ACTION_NEXT,
+       ZERO,
+};
+
+static const enum index action_dec_tcp_ack[] = {
+       ACTION_DEC_TCP_ACK_VALUE,
+       ACTION_NEXT,
+       ZERO,
+};
+
 static int parse_init(struct context *, const struct token *,
                      const char *, unsigned int,
                      void *, unsigned int);
@@ -2843,6 +2879,70 @@ static int comp_vc_action_rss_queue(struct context *, 
const struct token *,
                             (struct rte_flow_action_set_mac, mac_addr)),
                .call = parse_vc_conf,
        },
+       [ACTION_INC_TCP_SEQ] = {
+               .name = "inc_tcp_seq",
+               .help = "increase TCP sequence number",
+               .priv = PRIV_ACTION(INC_TCP_SEQ,
+                       sizeof(struct rte_flow_general_action)),
+               .next = NEXT(action_inc_tcp_seq),
+               .call = parse_vc,
+       },
+       [ACTION_INC_TCP_SEQ_VALUE] = {
+               .name = "value",
+               .help = "the value to increase TCP sequence number by",
+               .next = NEXT(action_inc_tcp_seq, NEXT_ENTRY(UNSIGNED)),
+               .args = ARGS(ARGS_ENTRY_HTON
+                       (struct rte_flow_general_action, integer)),
+               .call = parse_vc_conf,
+       },
+       [ACTION_DEC_TCP_SEQ] = {
+               .name = "dec_tcp_seq",
+               .help = "decrease TCP sequence number",
+               .priv = PRIV_ACTION(DEC_TCP_SEQ,
+                       sizeof(struct rte_flow_general_action)),
+               .next = NEXT(action_dec_tcp_seq),
+               .call = parse_vc,
+       },
+       [ACTION_DEC_TCP_SEQ_VALUE] = {
+               .name = "value",
+               .help = "the value to decrease TCP sequence number by",
+               .next = NEXT(action_dec_tcp_seq, NEXT_ENTRY(UNSIGNED)),
+               .args = ARGS(ARGS_ENTRY_HTON
+                       (struct rte_flow_general_action, integer)),
+               .call = parse_vc_conf,
+       },
+       [ACTION_INC_TCP_ACK] = {
+               .name = "inc_tcp_ack",
+               .help = "increase TCP acknowledgment number",
+               .priv = PRIV_ACTION(INC_TCP_ACK,
+                       sizeof(struct rte_flow_general_action)),
+               .next = NEXT(action_inc_tcp_ack),
+               .call = parse_vc,
+       },
+       [ACTION_INC_TCP_ACK_VALUE] = {
+               .name = "value",
+               .help = "the value to increase TCP acknowledgment number by",
+               .next = NEXT(action_inc_tcp_ack, NEXT_ENTRY(UNSIGNED)),
+               .args = ARGS(ARGS_ENTRY_HTON
+                       (struct rte_flow_general_action, integer)),
+               .call = parse_vc_conf,
+       },
+       [ACTION_DEC_TCP_ACK] = {
+               .name = "dec_tcp_ack",
+               .help = "decrease TCP acknowledgment number",
+               .priv = PRIV_ACTION(DEC_TCP_ACK,
+                       sizeof(struct rte_flow_general_action)),
+               .next = NEXT(action_dec_tcp_ack),
+               .call = parse_vc,
+       },
+       [ACTION_DEC_TCP_ACK_VALUE] = {
+               .name = "value",
+               .help = "the value to decrease TCP acknowledgment number by",
+               .next = NEXT(action_dec_tcp_ack, NEXT_ENTRY(UNSIGNED)),
+               .args = ARGS(ARGS_ENTRY_HTON
+                       (struct rte_flow_general_action, integer)),
+               .call = parse_vc_conf,
+       },
 };
 
 /** Remove and return last entry from argument stack. */
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst 
b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 06c8b2a..318f017 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -3997,6 +3997,22 @@ This section lists supported actions and their 
attributes, if any.
 
   - ``mac_addr {MAC-48}``: new destination MAC address
 
+- ``inc_tcp_seq``: Increase sequence number in the outermost TCP header.
+
+  - ``value {unsigned}``: Value to increase TCP sequence number by.
+
+- ``dec_tcp_seq``: Decrease sequence number in the outermost TCP header.
+
+  - ``value {unsigned}``: Value to decrease TCP sequence number by.
+
+- ``inc_tcp_ack``: Increase acknowledgment number in the outermost TCP header.
+
+  - ``value {unsigned}``: Value to increase TCP acknowledgment number by.
+
+- ``dec_tcp_ack``: Decrease acknowledgment number in the outermost TCP header.
+
+  - ``value {unsigned}``: Value to decrease TCP acknowledgment number by.
+
 Destroying flow rules
 ~~~~~~~~~~~~~~~~~~~~~
 
-- 
1.8.3.1

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