[dpdk-dev] [PATCH] librte_net: define TCP flags in rte_tcp.h instead of in rte_eth_ctrl.h

["Morten Brørup" <mb@smartsharesystems.com>]

TCP flags were moved to the TCP header file from the Ethernet control
header file, keeping their names intact.

Missing TCP ECN flags were added.

The ALL mask did not include TCP ECN flags, so it was renamed to
reflect that it applies to N-tuple filtering only.

A driver using the ALL mask was updated accordingly.

Signed-off-by: Morten Brørup <mb@smartsharesystems.com>
---
 app/test-pmd/cmdline.c           |    4 ++--
 drivers/net/e1000/igb_ethdev.c   |    8 ++++----
 lib/librte_ethdev/rte_eth_ctrl.h |    8 +-------
 lib/librte_net/rte_tcp.h         |   13 +++++++++++++
 4 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index ee50e45..59a45c1 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -9983,7 +9983,7 @@ cmd_2tuple_filter_parsed(void *parsed_result,
 			" when protocol is TCP.\n");
 		return;
 	}
-	if (res->tcp_flags_value > TCP_FLAG_ALL) {
+	if (res->tcp_flags_value > RTE_NTUPLE_TCP_FLAGS_MASK) {
 		printf("invalid TCP flags.\n");
 		return;
 	}
@@ -10141,7 +10141,7 @@ cmd_5tuple_filter_parsed(void *parsed_result,
 			" when protocol is TCP.\n");
 		return;
 	}
-	if (res->tcp_flags_value > TCP_FLAG_ALL) {
+	if (res->tcp_flags_value > RTE_NTUPLE_TCP_FLAGS_MASK) {
 		printf("invalid TCP flags.\n");
 		return;
 	}
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index b897e8a..c2fe19a 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3702,7 +3702,7 @@ ntuple_filter_to_2tuple(struct rte_eth_ntuple_filter *filter,
 		return -EINVAL;
 	if (filter->priority > E1000_2TUPLE_MAX_PRI)
 		return -EINVAL;  /* filter index is out of range. */
-	if (filter->tcp_flags > TCP_FLAG_ALL)
+	if (filter->tcp_flags > RTE_NTUPLE_TCP_FLAGS_MASK)
 		return -EINVAL;  /* flags is invalid. */
 
 	switch (filter->dst_port_mask) {
@@ -3782,7 +3782,7 @@ igb_inject_2uple_filter(struct rte_eth_dev *dev,
 		ttqf &= ~E1000_TTQF_MASK_ENABLE;
 
 	/* tcp flags bits setting. */
-	if (filter->filter_info.tcp_flags & TCP_FLAG_ALL) {
+	if (filter->filter_info.tcp_flags & RTE_NTUPLE_TCP_FLAGS_MASK) {
 		if (filter->filter_info.tcp_flags & TCP_URG_FLAG)
 			imir_ext |= E1000_IMIREXT_CTRL_URG;
 		if (filter->filter_info.tcp_flags & TCP_ACK_FLAG)
@@ -4188,7 +4188,7 @@ ntuple_filter_to_5tuple_82576(struct rte_eth_ntuple_filter *filter,
 		return -EINVAL;
 	if (filter->priority > E1000_2TUPLE_MAX_PRI)
 		return -EINVAL;  /* filter index is out of range. */
-	if (filter->tcp_flags > TCP_FLAG_ALL)
+	if (filter->tcp_flags > RTE_NTUPLE_TCP_FLAGS_MASK)
 		return -EINVAL;  /* flags is invalid. */
 
 	switch (filter->dst_ip_mask) {
@@ -4318,7 +4318,7 @@ igb_inject_5tuple_filter_82576(struct rte_eth_dev *dev,
 	imir |= filter->filter_info.priority << E1000_IMIR_PRIORITY_SHIFT;
 
 	/* tcp flags bits setting. */
-	if (filter->filter_info.tcp_flags & TCP_FLAG_ALL) {
+	if (filter->filter_info.tcp_flags & RTE_NTUPLE_TCP_FLAGS_MASK) {
 		if (filter->filter_info.tcp_flags & TCP_URG_FLAG)
 			imir_ext |= E1000_IMIREXT_CTRL_URG;
 		if (filter->filter_info.tcp_flags & TCP_ACK_FLAG)
diff --git a/lib/librte_ethdev/rte_eth_ctrl.h b/lib/librte_ethdev/rte_eth_ctrl.h
index 5ea8ae2..f21e84b 100644
--- a/lib/librte_ethdev/rte_eth_ctrl.h
+++ b/lib/librte_ethdev/rte_eth_ctrl.h
@@ -184,13 +184,7 @@ struct rte_eth_syn_filter {
 		RTE_NTUPLE_FLAGS_DST_PORT | \
 		RTE_NTUPLE_FLAGS_PROTO)
 
-#define TCP_URG_FLAG 0x20
-#define TCP_ACK_FLAG 0x10
-#define TCP_PSH_FLAG 0x08
-#define TCP_RST_FLAG 0x04
-#define TCP_SYN_FLAG 0x02
-#define TCP_FIN_FLAG 0x01
-#define TCP_FLAG_ALL 0x3F
+#define RTE_NTUPLE_TCP_FLAGS_MASK 0x3F /**< TCP flags filter can match. */
 
 /**
  * A structure used to define the ntuple filter entry
diff --git a/lib/librte_net/rte_tcp.h b/lib/librte_net/rte_tcp.h
index 91f5898..2e89b5e 100644
--- a/lib/librte_net/rte_tcp.h
+++ b/lib/librte_net/rte_tcp.h
@@ -2,6 +2,7 @@
  * Copyright(c) 1982, 1986, 1990, 1993
  *      The Regents of the University of California.
  * Copyright(c) 2010-2014 Intel Corporation.
+ * Copyright(c) 2019 SmartShare Systems.
  * All rights reserved.
  */
 
@@ -35,6 +36,18 @@ struct tcp_hdr {
 	uint16_t tcp_urp;   /**< TCP urgent pointer, if any. */
 } __attribute__((__packed__));
 
+/**
+ * TCP Flags
+ */
+#define TCP_CWR_FLAG 0x80 /**< Congestion Window Reduced */
+#define TCP_ECE_FLAG 0x40 /**< ECN-Echo */
+#define TCP_URG_FLAG 0x20 /**< Urgent Pointer field significant */
+#define TCP_ACK_FLAG 0x10 /**< Acknowledgment field significant */
+#define TCP_PSH_FLAG 0x08 /**< Push Function */
+#define TCP_RST_FLAG 0x04 /**< Reset the connection */
+#define TCP_SYN_FLAG 0x02 /**< Synchronize sequence numbers */
+#define TCP_FIN_FLAG 0x01 /**< No more data from sender */
+
 #ifdef __cplusplus
 }
 #endif
-- 
1.5.6