netdev - [PATCH iproute2 3/3] ifstat: Add "sw only" extended statistics to ifstat

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Message-Id: <1479996760-61271-4-git-send-email-nogahf@mellanox.com>
Date:   Thu, 24 Nov 2016 16:12:40 +0200
From:   Nogah Frankel <nogahf@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     eladr@...lanox.com, yotamg@...lanox.com, jiri@...lanox.com,
        idosch@...lanox.com, ogerlitz@...lanox.com,
        Nogah Frankel <nogahf@...lanox.com>
Subject: [PATCH iproute2 3/3] ifstat: Add "sw only" extended statistics to ifstat

Add support for extended statistics of SW only type, for counting only the
packets that went via the cpu. (useful for systems with forward
offloading). It reads it from filter type IFLA_STATS_LINK_OFFLOAD_XSTATS
and sub type IFLA_OFFLOAD_XSTATS_CPU_HIT.

It is under the name 'software'
(or any shorten of it as 'soft' or simply 's').

For example:
ifstat -x s

Signed-off-by: Nogah Frankel <nogahf@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
---
 misc/ifstat.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/misc/ifstat.c b/misc/ifstat.c
index 90aeeaa..7825a3a 100644
--- a/misc/ifstat.c
+++ b/misc/ifstat.c
@@ -675,7 +675,8 @@ static int verify_forging(int fd)
 static void xstat_usage(void)
 {
 	fprintf(stderr,
-"Usage: ifstat supported xstats:\n");
+"Usage: ifstat supported xstats:\n"
+"	software	SW stats. Counts only packets that went via the CPU\n");
 
 }
 
@@ -691,6 +692,7 @@ struct extended_stats_options_t {
  */
 static const struct extended_stats_options_t extended_stats_options[] = {
 	{"", IFLA_STATS_LINK_64, NO_SUB_TYPE},
+	{"software",  IFLA_STATS_LINK_OFFLOAD_XSTATS, IFLA_OFFLOAD_XSTATS_CPU_HIT},
 };
 
 static bool get_filter_type(char *name)
-- 
2.4.3