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Re: I lost ath0 support on current sometime between Sept 20 and Sept 26.



Johann Hugo wrote:
On Sunday 12 October 2008, Edwin L. Culp W. wrote:
On Fri, Oct 10, 2008 at 8:58 AM, Edwin L. Culp W. <edwinlculp_(_at_)_gmail_(_dot_)_com>
wrote:
On Thu, Oct 9, 2008 at 9:21 PM, Sam Leffler <sam_(_at_)_freebsd_(_dot_)_org> wrote:
Edwin L. Culp W. wrote:
I started this thread on current but I lost it to Ashish Shukla so I'm
going to try here and see if I can explain it better and solve this
strange issue.

I was happily using Sam's ath_hal-20080528 patch and IIRC the
committed ath_hal fixes until Sept 20.  I didn't build another new
kernel until Sept 26.  From that date on I have been unable to get it
working.  The sept 20 kernel still works great. I'm using it to send
this email.  I don't have to change anything I just start kernel.old
and run it rather than today's kernel that has no problems other than
bringing up ath0/wlan0.

Some general info for both kernels that I can find no important
differences and now really doubt that the problem is hal_ath but
something else that has changed and is causing the problem. I have
thought of dhcp, ifconfig, ???  The general information for both
follows:


FreeBSD 8.0-CURRENT #50: Thu Oct  9 05:27:41 CDT 2008
   root_(_at_)_ed_(_dot_)_local_(_dot_)_net_(_dot_)_mx:/usr/obj/usr/src/sys/ENCONTACTO

rc.conf that doesn't change and works for sept 20 kernel but not
todays:

    wlans_ath0=wlan0
    ifconfig_wlan0="DHCP ssid virus wepmode on wepkey 1:0x2373FE9515
weptxkey 1"

ifconfig with todays kernel for ath0 and wlan0:


ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
2290 ether 00:1d:d9:27:5c:e5
       media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
       status: associated
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
       ether 00:1d:d9:27:5c:e5
       media: IEEE 802.11 Wireless Ethernet OFDM/48Mbps mode 11g
       status: associated
       ssid virus channel 6 (2437 Mhz 11g) bssid 00:1d:7e:51:e1:4d
       regdomain 101 indoor ecm authmode OPEN privacy ON deftxkey 1
       wepkey 1:40-bit txpower 16 bmiss 7 scanvalid 450 bgscan
       bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 5 protmode
CTS wme burst roaming MANUAL

The part of the dmesg that show ath0 and wlan0 with hal

ath_hal: 0.10.5.10 (AR5210, AR5211, AR5212, AR5416, RF5111, RF5112,
RF2413, RF5413, RF2133, RF2425, RF2417)

ath0: <Atheros 5424/2424> mem 0xd0400000-0xd040ffff irq 19 at device
0.0 on pci5
ath0: [ITHREAD]
ath0: WARNING: using obsoleted if_watchdog interface
ath0: mac 14.2 phy 7.0 radio 10.2


-----------------------------------------------------------------------
-------------------------

The same information for the Sept 20 kernel.

FreeBSD ed.local.net.mx 8.0-CURRENT FreeBSD 8.0-CURRENT #34: Sat Sep
20 05:37:05 CDT 2008
root_(_at_)_ed_(_dot_)_local_(_dot_)_net_(_dot_)_mx:/usr/obj/usr/src/sys/ENCONTACTO  i386

rc.conf is the same.

If config for Sept 20 kernel:

ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
2290 ether 00:1d:d9:27:5c:e5
       media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
       status: associated
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
       ether 00:1d:d9:27:5c:e5
       inet 172.16.0.7 netmask 0xffffff00 broadcast 172.16.0.255
       media: IEEE 802.11 Wireless Ethernet DS/5.5Mbps mode 11g
       status: associated
       ssid virus channel 6 (2437 Mhz 11g) bssid 00:1d:7e:51:e1:4d
       regdomain 101 indoor ecm authmode OPEN privacy ON deftxkey 1
       wepkey 1:40-bit txpower 16 bmiss 7 scanvalid 60 bgscan
bgscanintvl 300
       bgscanidle 250 roam:rssi 7 roam:rate 5 protmode CTS wme burst

Same parts of the dmesg form Sept 20 kernel.

ath_hal: 0.10.5.10 (AR5210, AR5211, AR5212, AR5416, RF5111, RF5112,
RF2413, RF5413, RF2133, RF2425, RF2417)

ath0: <Atheros 5424/2424> mem 0xd0400000-0xd040ffff irq 19 at device
0.0 on pci5
ath0: [ITHREAD]
ath0: WARNING: using obsoleted if_watchdog interface
ath0: mac 14.2 phy 7.0 radio 10.2
Does it work w/o WEP?  Do you any crypto errors show up in wlanstats
and/or athstats output?

  Sam
I haven't tried it and I should have since I'm pretty sure that it is
something external.  I've got travel in a few minutes but I'll do it
tomorrow on my AP at home to not interrupt anyone.
Good morning, Sam.  I just disabled encryption on my router and
changed my rc.conf to
ifconfig_wlan0="DHCP ssid virus2"
and as you probably knew, it works flawlessly.

Now I have to ask, what I can do about wep that works on my Sept 20
and earlier kernels and doesn't work on my recent kernels?

Thanks,

ed

I don't know it this is related, but something changed with the WEP-key index. On my EeePC I had to change my wpa_supplicant.conf file to use wep_tx_keyidx=0 and wep_key0=mywepkey before I could get it to work. I the past it always worked with wep_tx_keyidx=1 and wep_key1=xxxxx.

The funny thing is that ifconfig reports it as deftxkey 1 and wepkey 1 if I use index 0 in wpa_supplicant and ifconfig will report deftxkey 2 and wepkey 2 if I use index 1 in wpa_supplicant.conf

I believe it has always been true that key indices reported by ifconfig are in the rage [1..4] while wpa_supplicant key indices specified in the config file are [0..3]. I don't recall anything changing in that area for a long time but I did make changes to the net80211 crypto code around that time.

   Sam

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