[dpdk-dev] [PATCH] examples/ipsec-secgw: fix usage print

[Anoob Joseph <anoob.joseph@caviumnetworks.com>]

The usage print was not updated when jumbo frames & crypto_dev mask
support was added. Fixing that. Also, the optional arguments were not
properly highlighted in the usage header. This is also fixed.

General cleanup of the usage print was also done to make it look more
cleaner and similar to what is existing in other applications like
l3fwd.

Fixes: bbabfe6e4ee4 ("examples/ipsec_secgw: support jumbo frames")
Fixes: 2c68fe791538 ("examples/ipsec-secgw: add cryptodev mask option")
Fixes: d299106e8e31 ("examples/ipsec-secgw: add IPsec sample application")

Signed-off-by: Anoob Joseph <anoob.joseph@caviumnetworks.com>
---
 examples/ipsec-secgw/ipsec-secgw.c | 36 ++++++++++++++++++++++--------------
 1 file changed, 22 insertions(+), 14 deletions(-)

diff --git a/examples/ipsec-secgw/ipsec-secgw.c b/examples/ipsec-secgw/ipsec-secgw.c
index 18330fe..1494b02 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -945,20 +945,28 @@ init_lcore_rx_queues(void)
 static void
 print_usage(const char *prgname)
 {
-	printf("%s [EAL options] -- -p PORTMASK -P -u PORTMASK"
-		"  --"CMD_LINE_OPT_CONFIG" (port,queue,lcore)[,(port,queue,lcore]"
-		" --single-sa SAIDX -f CONFIG_FILE\n"
-		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
-		"  -P : enable promiscuous mode\n"
-		"  -u PORTMASK: hexadecimal bitmask of unprotected ports\n"
-		"  -j FRAMESIZE: jumbo frame maximum size\n"
-		"  --"CMD_LINE_OPT_CONFIG": (port,queue,lcore): "
-		"rx queues configuration\n"
-		"  --single-sa SAIDX: use single SA index for outbound, "
-		"bypassing the SP\n"
-		"  --cryptodev_mask MASK: hexadecimal bitmask of the "
-		"crypto devices to configure\n"
-		"  -f CONFIG_FILE: Configuration file path\n",
+	fprintf(stderr, "%s [EAL options] --"
+		" -p PORTMASK"
+		" [-P]"
+		" [-u PORTMASK]"
+		" [-j FRAMESIZE]"
+		" -f CONFIG_FILE"
+		" --config (port,queue,lcore)[,(port,queue,lcore)]"
+		" [--single-sa SAIDX]"
+		" [--cryptodev_mask MASK]"
+		"\n\n"
+		"  -p PORTMASK: Hexadecimal bitmask of ports to configure\n"
+		"  -P : Enable promiscuous mode\n"
+		"  -u PORTMASK: Hexadecimal bitmask of unprotected ports\n"
+		"  -j FRAMESIZE: Enable jumbo frame with 'FRAMESIZE' as maximum\n"
+		"                packet size\n"
+		"  -f CONFIG_FILE: Configuration file\n"
+		"  --config (port,queue,lcore): Rx queue configuration\n"
+		"  --single-sa SAIDX: Use single SA index for outbound traffic,\n"
+		"                     bypassing the SP\n"
+		"  --cryptodev_mask MASK: Hexadecimal bitmask of the crypto\n"
+		"                         devices to configure\n"
+		"\n",
 		prgname);
 }
 
-- 
2.7.4