mac80211: debugfs: add file to disallow TDLS wider-bw
Sometimes we are interested in testing TDLS performance in a specific
width setting. Add the ability to disable the wider-band feature, thereby
allowing the TDLS channel width to be controlled by the BSS width.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 1021e87..f1580e9 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -455,6 +455,34 @@
}
IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
+static ssize_t ieee80211_if_fmt_tdls_wider_bw(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ bool tdls_wider_bw;
+
+ tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
+ !ifmgd->tdls_wider_bw_prohibited;
+
+ return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
+}
+
+static ssize_t ieee80211_if_parse_tdls_wider_bw(
+ struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
+{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ u8 val;
+ int ret;
+
+ ret = kstrtou8(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ ifmgd->tdls_wider_bw_prohibited = !val;
+ return buflen;
+}
+IEEE80211_IF_FILE_RW(tdls_wider_bw);
+
/* AP attributes */
IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
@@ -614,6 +642,7 @@
DEBUGFS_ADD_MODE(beacon_loss, 0200);
DEBUGFS_ADD_MODE(uapsd_queues, 0600);
DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
+ DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
}
static void add_ap_files(struct ieee80211_sub_if_data *sdata)