iw: Add support to print station retry counters

Patch from: kentarou matsuyama <matsuyama@thinktube.com>

SVN-Revision: 25108

package/iw/patches/302-sta-retries.patch

@@ -0,0 +1,35 @@
+iw: print station retry counters
+
+From: Bruno Randolf <br1@einfach.org>
+
+Signed-off-by: Bruno Randolf <br1@einfach.org>
+---
+ station.c |    8 ++++++++
+ 1 files changed, 8 insertions(+), 0 deletions(-)
+
+diff --git a/station.c b/station.c
+index 8cf038d..7639553 100644
+--- a/station.c
++++ b/station.c
+@@ -48,6 +48,8 @@ static int print_sta_handler(struct nl_msg *msg, void *arg)
+ 		[NL80211_STA_INFO_LLID] = { .type = NLA_U16 },
+ 		[NL80211_STA_INFO_PLID] = { .type = NLA_U16 },
+ 		[NL80211_STA_INFO_PLINK_STATE] = { .type = NLA_U8 },
++		[NL80211_STA_INFO_TX_RETRIES] = { .type = NLA_U32 },
++		[NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
+ 	};
+ 
+ 	static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
+@@ -96,6 +98,12 @@ static int print_sta_handler(struct nl_msg *msg, void *arg)
+ 	if (sinfo[NL80211_STA_INFO_TX_PACKETS])
+ 		printf("\n\ttx packets:\t%u",
+ 			nla_get_u32(sinfo[NL80211_STA_INFO_TX_PACKETS]));
++	if (sinfo[NL80211_STA_INFO_TX_RETRIES])
++		printf("\n\ttx retries:\t%u",
++			nla_get_u32(sinfo[NL80211_STA_INFO_TX_RETRIES]));
++	if (sinfo[NL80211_STA_INFO_TX_FAILED])
++		printf("\n\ttx failed:\t%u",
++			nla_get_u32(sinfo[NL80211_STA_INFO_TX_FAILED]));
+ 	if (sinfo[NL80211_STA_INFO_SIGNAL])
+ 		printf("\n\tsignal:  \t%d dBm",
+ 			(int8_t)nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]));