From: Daniel Smith <viscous.liquid@gmail.com>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] Unrealistic RSSI values being reported
Date: Fri, 04 Nov 2011 13:50:35 -0400 [thread overview]
Message-ID: <j918lb$uq9$1@dough.gmane.org> (raw)
In-Reply-To: <CAD2nsn0U0_YT+=7sdz7t-vhfx71zXQGM_E9vFZi6HbPvYJMAjw@mail.gmail.com>
On 11/3/2011 7:10 PM, Mohammed Shafi wrote:
> Hi Daniel,
>
> i tried with the AR9382 card in 3.1.0-wl with the attached debug
> patch, can you please give a sample log with the patch applied and
> putting the interface in monitor mode. did you print/check rs_rssi
> somewhere else?
> did you also try with the latest package
> http://linuxwireless.org/download/compat-wireless-2.6/
>
Alright, so I built compat-wireless-2011-11-03 (the latest when I looked
this morning), although in klog it reported as
compat-wireless-2011-10-14. Below are snippets from the logs. Some
things I noticed is that for beacons and probes I am get acceptable
values, but traffic(data) frames are the ones that have the unrealistic
values,. Although if the AR9832 really had a RX sensitivity of -198dB,
as it claims on one of the frames, we could set some serious distance
records (^_^).
Configuration commands,
iw wlan9 set type monitor
iw wlan9 set channel 4 HT40+
Version info:
Nov 4 12:37:23 dpsmith-dev-system kernel: [83160.841129]
Compat-wireless backport release: compat-wireless-2011-10-14
Nov 4 12:37:23 dpsmith-dev-system kernel: [83160.841138] Backport based
on linux-next.git next-20111025
The AR9382 card:
Nov 4 12:37:24 dpsmith-dev-system kernel: [83160.930301] ieee80211
phy0: Atheros AR9300 Rev:3 mem=0xfd7c0000, irq=16
Nov 4 12:37:24 dpsmith-dev-system kernel: [83160.930337] ath9k
0000:0c:08.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
The AR9160 card:
Nov 4 12:37:25 dpsmith-dev-system kernel: [83162.531047] ieee80211
phy1: Atheros AR9160 MAC/BB Rev:1 AR5133 RF Rev:b0 mem=0xfd800000, irq=18
Nov 4 12:37:25 dpsmith-dev-system kernel: [83162.531072] ath9k
0000:0c:09.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
AR9160 beacons and probes,
Nov 4 12:38:09 dpsmith-dev-system kernel: [83205.921245] noise = -88,
rs_rssi = 43, signal =-45
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.023657] noise = -88,
rs_rssi = 40, signal =-48
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.126067] noise = -88,
rs_rssi = 40, signal =-48
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.161743] noise = -88,
rs_rssi = 39, signal =-49
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.224044] noise = -88,
rs_rssi = 41, signal =-47
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.224052] noise = -88,
rs_rssi = 6, signal =-82
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.228482] noise = -88,
rs_rssi = 39, signal =-49
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.330891] noise = -88,
rs_rssi = 41, signal =-47
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.433304] noise = -88,
rs_rssi = 41, signal =-47
Nov 4 12:38:09 dpsmith-dev-system kernel: [83206.535713] noise = -88,
rs_rssi = 42, signal =-46
AR9160 large values (obtained with: cat kern.log-wlan9-11-03 |grep
'noise' | grep -v '=-'),
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.704886] noise = -88,
rs_rssi = 99, signal =11
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.707048] noise = -88,
rs_rssi = 114, signal =26
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.707061] noise = -88,
rs_rssi = 107, signal =19
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.713837] noise = -88,
rs_rssi = 121, signal =33
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.800813] noise = -88,
rs_rssi = 114, signal =26
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.800849] noise = -88,
rs_rssi = 114, signal =26
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.803943] noise = -88,
rs_rssi = 114, signal =26
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.812570] noise = -88,
rs_rssi = 91, signal =3
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.833527] noise = -88,
rs_rssi = 91, signal =3
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.852020] noise = -88,
rs_rssi = 122, signal =34
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.867188] noise = -88,
rs_rssi = 97, signal =9
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.883733] noise = -88,
rs_rssi = 124, signal =36
Nov 4 12:48:44 dpsmith-dev-system kernel: [83841.887835] noise = -88,
rs_rssi = 124, signal =36
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.222768] noise = -88,
rs_rssi = -70, signal =-158
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.225734] noise = -88,
rs_rssi = -57, signal =-145
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.225744] noise = -88,
rs_rssi = -100, signal =-188
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.228756] noise = -88,
rs_rssi = -41, signal =-129
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.228766] noise = -88,
rs_rssi = -50, signal =-138
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.238307] noise = -88,
rs_rssi = -59, signal =-147
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.238317] noise = -88,
rs_rssi = -41, signal =-129
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.239728] noise = -88,
rs_rssi = -80, signal =-168
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.349986] noise = -88,
rs_rssi = -92, signal =-180
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.349999] noise = -88,
rs_rssi = -92, signal =-180
Nov 4 12:48:45 dpsmith-dev-system kernel: [83842.350009] noise = -88,
rs_rssi = -18, signal =-106
AR9382 beacons and probes,
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.575367] noise = -95,
rs_rssi = 28, signal =-67
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.577432] noise = -95,
rs_rssi = 44, signal =-51
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.577445] noise = -95,
rs_rssi = 48, signal =-47
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.578581] noise = -95,
rs_rssi = 44, signal =-51
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.580742] noise = -95,
rs_rssi = 45, signal =-50
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.580753] noise = -95,
rs_rssi = 45, signal =-50
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.581369] noise = -95,
rs_rssi = 47, signal =-48
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.582133] noise = -95,
rs_rssi = 48, signal =-47
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.582771] noise = -95,
rs_rssi = 48, signal =-47
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.582780] noise = -95,
rs_rssi = 28, signal =-67
Nov 4 13:02:48 dpsmith-dev-system kernel: [84685.582788] noise = -95,
rs_rssi = 49, signal =-46
AR9382 large values,
Nov 4 13:02:49 dpsmith-dev-system kernel: [84686.866417] noise = -95,
rs_rssi = 117, signal =22
Nov 4 13:02:49 dpsmith-dev-system kernel: [84686.867481] noise = -95,
rs_rssi = 100, signal =5
Nov 4 13:02:50 dpsmith-dev-system kernel: [84687.056185] noise = -95,
rs_rssi = 108, signal =13
Nov 4 13:02:51 dpsmith-dev-system kernel: [84688.101812] noise = -95,
rs_rssi = 121, signal =26
Nov 4 13:02:51 dpsmith-dev-system kernel: [84688.184731] noise = -95,
rs_rssi = 118, signal =23
Nov 4 13:02:53 dpsmith-dev-system kernel: [84690.676674] noise = -95,
rs_rssi = 116, signal =21
Nov 4 13:02:58 dpsmith-dev-system kernel: [84695.616568] noise = -95,
rs_rssi = 120, signal =25
Nov 4 13:02:58 dpsmith-dev-system kernel: [84695.616578] noise = -95,
rs_rssi = 102, signal =7
Nov 4 13:02:58 dpsmith-dev-system kernel: [84695.737242] noise = -95,
rs_rssi = 106, signal =11
Nov 4 13:02:58 dpsmith-dev-system kernel: [84695.741015] noise = -95,
rs_rssi = 109, signal =14
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.016861] noise = -95,
rs_rssi = -103, signal =-198
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.017702] noise = -95,
rs_rssi = -6, signal =-101
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.437538] noise = -95,
rs_rssi = -91, signal =-186
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.443453] noise = -95,
rs_rssi = -47, signal =-142
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.444890] noise = -95,
rs_rssi = -59, signal =-154
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.446049] noise = -95,
rs_rssi = -94, signal =-189
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.447909] noise = -95,
rs_rssi = -22, signal =-117
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.452528] noise = -95,
rs_rssi = -55, signal =-150
Nov 4 13:06:39 dpsmith-dev-system kernel: [84916.813274] noise = -95,
rs_rssi = -43, signal =-138
v/r,
dps
next prev parent reply other threads:[~2011-11-04 17:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-03 19:28 [ath9k-devel] Unrealistic RSSI values being reported Daniel Smith
2011-11-03 23:10 ` Mohammed Shafi
2011-11-04 11:27 ` Daniel Smith
2011-11-04 12:44 ` Mohammed Shafi
2011-11-23 6:06 ` Mohammed Shafi
2011-11-23 14:08 ` Daniel Smith
2011-11-04 17:50 ` Daniel Smith [this message]
2011-11-08 15:04 ` Mohammed Shafi
2011-11-21 17:35 ` Daniel Smith
2011-11-21 20:09 ` Adrian Chadd
2011-11-22 17:42 ` Daniel Smith
2011-11-22 23:05 ` Adrian Chadd
2011-11-23 13:44 ` Daniel Smith
2011-11-23 14:14 ` Adrian Chadd
2011-11-23 14:24 ` Felix Fietkau
2011-11-23 15:18 ` Daniel Smith
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