diff options
Diffstat (limited to 'package/madwifi/patches-testing/321-bgscan_rssi_thresh.patch')
| -rw-r--r-- | package/madwifi/patches-testing/321-bgscan_rssi_thresh.patch | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/package/madwifi/patches-testing/321-bgscan_rssi_thresh.patch b/package/madwifi/patches-testing/321-bgscan_rssi_thresh.patch deleted file mode 100644 index 7020305ea8..0000000000 --- a/package/madwifi/patches-testing/321-bgscan_rssi_thresh.patch +++ /dev/null @@ -1,127 +0,0 @@ -Add an optional background scanning threshold triggered by low rssi -(useful for passing updated scan results to the supplicant ahead of -time, before losing connectivity entirely) - -Signed-off-by: Felix Fietkau <nbd@openwrt.org> - ---- a/net80211/ieee80211_ioctl.h -+++ b/net80211/ieee80211_ioctl.h -@@ -655,6 +655,7 @@ - IEEE80211_PARAM_MINRATE = 84, /* Minimum rate (by table index) */ - IEEE80211_PARAM_PROTMODE_RSSI = 85, /* RSSI Threshold for enabling protection mode */ - IEEE80211_PARAM_PROTMODE_TIMEOUT = 86, /* Timeout for expiring protection mode */ -+ IEEE80211_PARAM_BGSCAN_THRESH = 87, /* bg scan rssi threshold */ - }; - - #define SIOCG80211STATS (SIOCDEVPRIVATE+2) ---- a/net80211/ieee80211_var.h -+++ b/net80211/ieee80211_var.h -@@ -92,6 +92,8 @@ - #define IEEE80211_BGSCAN_IDLE_MIN 100 /* min idle time (ms) */ - #define IEEE80211_BGSCAN_IDLE_DEFAULT 250 /* default idle time (ms) */ - -+#define IEEE80211_BGSCAN_TRIGGER_INTVL 20 /* min trigger interval for thresh based bgscan (secs) */ -+ - #define IEEE80211_COVERAGE_CLASS_MAX 31 /* max coverage class */ - #define IEEE80211_REGCLASSIDS_MAX 10 /* max regclass id list */ - -@@ -229,6 +231,9 @@ - u_int8_t iv_nickname[IEEE80211_NWID_LEN]; - u_int iv_bgscanidle; /* bg scan idle threshold */ - u_int iv_bgscanintvl; /* bg scan min interval */ -+ u_int iv_bgscanthr; /* bg scan rssi threshold */ -+ u_int iv_bgscantrintvl; /* bg scan trigger interval */ -+ unsigned long iv_bgscanthr_next; /* last trigger for bgscan */ - u_int iv_scanvalid; /* scan cache valid threshold */ - struct ieee80211_roam iv_roam; /* sta-mode roaming state */ - -@@ -612,6 +617,7 @@ - #define IEEE80211_FEXT_SWBMISS 0x00000400 /* CONF: use software beacon timer */ - #define IEEE80211_FEXT_DROPUNENC_EAPOL 0x00000800 /* CONF: drop unencrypted eapol frames */ - #define IEEE80211_FEXT_APPIE_UPDATE 0x00001000 /* STATE: beacon APP IE updated */ -+#define IEEE80211_FEXT_BGSCAN_THR 0x00002000 /* bgscan due to low rssi */ - - #define IEEE80211_COM_UAPSD_ENABLE(_ic) ((_ic)->ic_flags_ext |= IEEE80211_FEXT_UAPSD) - #define IEEE80211_COM_UAPSD_DISABLE(_ic) ((_ic)->ic_flags_ext &= ~IEEE80211_FEXT_UAPSD) ---- a/net80211/ieee80211_wireless.c -+++ b/net80211/ieee80211_wireless.c -@@ -2778,6 +2778,9 @@ - else - retv = EINVAL; - break; -+ case IEEE80211_PARAM_BGSCAN_THRESH: -+ vap->iv_bgscanthr = value; -+ break; - case IEEE80211_PARAM_MCAST_RATE: - /* units are in KILObits per second */ - if (value >= 256 && value <= 54000) -@@ -3181,6 +3184,9 @@ - case IEEE80211_PARAM_BGSCAN_INTERVAL: - param[0] = vap->iv_bgscanintvl / HZ; /* seconds */ - break; -+ case IEEE80211_PARAM_BGSCAN_THRESH: -+ param[0] = vap->iv_bgscanthr; /* rssi */ -+ break; - case IEEE80211_PARAM_MCAST_RATE: - param[0] = vap->iv_mcast_rate; /* seconds */ - break; -@@ -5704,6 +5710,10 @@ - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bgscanintvl" }, - { IEEE80211_PARAM_BGSCAN_INTERVAL, - 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_bgscanintvl" }, -+ { IEEE80211_PARAM_BGSCAN_THRESH, -+ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bgscanthr" }, -+ { IEEE80211_PARAM_BGSCAN_THRESH, -+ 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_bgscanthr" }, - { IEEE80211_PARAM_MCAST_RATE, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "mcast_rate" }, - { IEEE80211_PARAM_MCAST_RATE, ---- a/net80211/ieee80211_input.c -+++ b/net80211/ieee80211_input.c -@@ -2984,8 +2984,10 @@ - { - struct ieee80211com *ic = vap->iv_ic; - -+ vap->iv_bgscantrintvl = (vap->iv_bgscantrintvl + 1) % 4; - return ((ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) && -- time_after(jiffies, ic->ic_lastdata + vap->iv_bgscanidle)); -+ (((ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN_THR) && !vap->iv_bgscantrintvl) || -+ time_after(jiffies, ic->ic_lastdata + vap->iv_bgscanidle))); - } - - static __inline int -@@ -3229,6 +3231,23 @@ - /* record tsf of last beacon */ - memcpy(ni->ni_tstamp.data, scan.tstamp, - sizeof(ni->ni_tstamp)); -+ -+ /* When rssi is low, start doing bgscans more frequently to allow -+ * the supplicant to make a better switching decision */ -+ if ((rssi < vap->iv_bgscanthr) && -+ (!vap->iv_bgscanthr_next || -+ !time_before(jiffies, vap->iv_bgscanthr_next)) && -+ !(ic->ic_flags & IEEE80211_F_SCAN)) { -+ int ret; -+ -+ ic->ic_lastdata = 0; -+ ic->ic_lastscan = 0; -+ ic->ic_flags_ext |= IEEE80211_FEXT_BGSCAN_THR; -+ ret = ieee80211_bg_scan(vap); -+ if (ret) -+ vap->iv_bgscanthr_next = jiffies + msecs_to_jiffies(IEEE80211_BGSCAN_TRIGGER_INTVL * 1000); -+ } -+ - if (ni->ni_intval != scan.bintval) { - IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC, ni, - "beacon interval divergence: " ---- a/net80211/ieee80211_scan.c -+++ b/net80211/ieee80211_scan.c -@@ -793,7 +793,7 @@ - ieee80211_sta_pwrsave(vap, 0); - if (ss->ss_next >= ss->ss_last) { - ieee80211_notify_scan_done(vap); -- ic->ic_flags_ext &= ~IEEE80211_FEXT_BGSCAN; -+ ic->ic_flags_ext &= ~(IEEE80211_FEXT_BGSCAN|IEEE80211_FEXT_BGSCAN_THR); - } - } - SCAN_PRIVATE(ss)->ss_iflags &= ~ISCAN_CANCEL; |