#18297: ath9k / longshot / minstrel shows G-rates, but phy send N-rates
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Reporter: bittorf@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Trunk
Resolution: | Keywords:
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Comment (by bittorf@…):
maybe related. it's the same longshot which has issues sometimes, thats
the reason i collect stuff here: mostly i have a link-speed if 2500
kilobyte/s TCP in both directions with HT20. sometimes i can see that no
packet can be transmitted for a long time (no matter at which rate,
minstrel hangs at 6mbit which endless retransmits. today i could see the
situation on both ends:
{{{
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0:
Starting IQ Cal and Correction for Chain 0
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0:
Original: Chn 0 iq_corr_meas = 0xffbfe53c
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: Chn
0 pwr_meas_i = 0x0ec86968
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: Chn
0 pwr_meas_q = 0x10b0dc1c
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0:
iqCorrNeg is 0x00000001
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: Chn
0 iCoff = 0x00000002
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: Chn
0 qCoff = 0xfffffff8
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: New:
Chn 0 iCoff = 0x00000002
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: Chn
0 : iCoff = 0x2 qCoff = 0xfffffff8
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: IQ
Cal and Correction done for Chain 0
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0: NF
calibrated [ctl] [chain 0] is -92
Tue Nov 11 16:01:42 2014 kern.debug kernel: [ 1005.500000] ath: phy0:
NF[0] (-92) > MAX (-102), correcting to MAX
}}}
whats interesting: normally the calibration is ~ each 30 sec with ~114 -
see here:
{{{
Tue Nov 11 18:54:11 2014 kern.debug kernel: [11354.340000] ath: phy0: NF
calibrated [ctl] [chain 0] is -114
Tue Nov 11 18:54:41 2014 kern.debug kernel: [11384.340000] ath: phy0: NF
calibrated [ctl] [chain 0] is -114
Tue Nov 11 18:55:11 2014 kern.debug kernel: [11414.340000] ath: phy0: NF
calibrated [ctl] [chain 0] is -114
Tue Nov 11 18:55:41 2014 kern.debug kernel: [11444.340000] ath: phy0: NF
calibrated [ctl] [chain 0] is -114
Tue Nov 11 18:56:11 2014 kern.debug kernel: [11474.340000] ath: phy0: NF
calibrated [ctl] [chain 0] is -114
}}}
during the hang there was'nt any calibration for some minutes...
radio is on both ends: phy0: Atheros AR9280 Rev:2
--
Ticket URL: <https://dev.openwrt.org/ticket/18297#comment:5>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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