On 1/7/07, Benjamin Close <[EMAIL PROTECTED]> wrote:
Massimo Lusetti wrote:
> On 1/5/07, Max Laier <[EMAIL PROTECTED]> wrote:
>> Thoughts? Volunteers?
> I can say that the first attempt still running fine here on my laptop
> on a -STABLE as of yesterday. I use it on a daily basis without any
> glitch. I must say i don't do or tried to do nothing special or
> network intensive job, but for reading emails, doing a lot of ssh and
> http/https the drivers is working smoothly.
>
> I will try to compile this new one on my stable during the week end
> and will see on Monday how it will perform on my office wi-lan.
>
> For the records: my wpi doesn't still work on OpenBSD-current cause
> it's integrated and the switch used to turn it on seems an acpi one
> which OpenBSD doesn't attach very well yet.
Hi Folks,
I did the port as my searching led me to believe that progress on a
driver had stagnated.
Port 1: was done by Damien himself
(http://lists.freebsd.org/pipermail/freebsd-mobile/2006-July/008768.html)
Port 2: was an updated version by Daminen:
http://osdir.com/ml/freebsd-hackers@freebsd.org/msg58154.html
which seems to be duplicated here:
http://people.freebsd.org/~flz/local/wpi/
(http://www.mail-archive.com/freebsd-net@freebsd.org/msg20710.html)
With version 2 being minor bug fixes to version 1 to try and get it
working. Since then the driver has come a long way in netbsd with the
FreeBSD version just getting older.
To others working on a wpi driver, please post something indicating what
you've done and even a sample of what your up to so we can one build one
driver that just works. I also did the driver port as everything I found
failed to work on a 64bit kernel, most the time wouldn't even compile.
I'm happy to try and maintain this driver. I have the hardware.
The main bugs I know about in this driver port are:
* The use of the iee80211_amrr code
The files exist in -current in /usr/src/sys/net80211 but the required
symbols are not in a GENERIC kernel build. There is a wlan_amrr module
which uses this code, though I'm not sure how to make use of this, it
appears a simple dependency on the module is not enough. The use of the
80211_amrr code also means that use under -stable requires quite a bit
more work as Rink pointed out.
* Bus resource allocation issues
Mainly related to: "bus_dmamem_alloc failed to align memory properly."
I'm hoping Mike
(http://lists.freebsd.org/pipermail/freebsd-stable/2006-June/026262.html)
might be able to help resolve these.
These allocation issues are caused while allocating of the rx & tx ring
buffers - which if they are broken explain why things don't work.
I'm still coming to grips to how the whole bus_dma_tag_create works. The
Netbsd bus_dma_map_alloc seems much more intuitive.
I've found if the module failed the first time, unloading it, then
reloading it would often make the allocation issues disappear and the
driver just work.
Though I've also found sometimes that even though the allocation issues
are reported, things still work, I'm guessing the alignment is pulled
into line by higher levels of bus_dma.
* ifconfig down causes timeouts reseting the tx ring
I'm still chasing the cause of this. It seems non critical as the driver
still works with an ifconfig up
* Watch dog timer uses an obsolete interface
I'm looking into the correct way to do watchdog timing
* A lock order reversal in wpi_intr
lock order reversal:
1st 0xffffffff812d9e20 wpi0 (network driver) @ if_wpi.c:1554
2nd 0xffffff003cee32f0 radix node head (radix node head) @ net/route.c:147
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x3a
witness_checkorder() at witness_checkorder+0x4f9
_mtx_lock_flags() at _mtx_lock_flags+0x75
rtalloc1() at rtalloc1+0x7a
arplookup() at arplookup+0x5c
arpintr() at arpintr+0x255
ether_demux() at ether_demux+0x2d3
ether_input() at ether_input+0x1e9
ieee80211_input() at ieee80211_input+0xd05
wpi_intr() at wpi_intr+0x9d7
ithread_loop() at ithread_loop+0xfe
fork_exit() at fork_exit+0xaa
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffffffa0698d40, rbp = 0 ---
For those wishing to help debug the driver and get it working, I've
posted a new version
http://www.clearchain.com/~benjsc/download/20070107-wpi-freebsd.tar.gz
To help debug:
kldload wpi_ucode
kldload if_wpi
wlandebug -i wpi0 0xffffff (I've included a copy of the -current
tool to save having to checkout the tree)
sysctl debug.wpi=10 (Debug levels are explained in if_wpi.c)
ifconfig wpi0 up
... wait 30 seconds then...
ifconfig wpi0 down
Then put /var/log/messages somewhere on the web & let me know
This will dump lots of debug info to syslog but should help me work out
whats happening. If the driver works for you, stick to debug level 5
max, else you'll be bombarded with logs. I'll try to install FBSD 32
-current & -stable (32/64) on the laptop in the next week to see what
might be different. ANY feedback is helpful.
Finally, for those who see "rx tail flags error xxx" this is caused by a
802.11 frame with an invalid CRC. Hence seeing the occasional one (with
debug level 4 or higher) is quiet normal. If you see floods of them then
chances are the rx ring is really out of alignment and things will just
be busted.
Cheers,
Benjamin
Here it's
FreeBSD DELL 6.2-STABLE FreeBSD 6.2-STABLE #1: Fri Jan 19 20:32:20 UTC
2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/BDO i386
DELL# tail /var/log/messages
Jan 20 18:34:48 DELL kernel: rx intr: idx=63 len=128 stat len=89
rssi=61 rate=a chan=11
tstamp=134327399314interrupt reg 80000008
Jan 20 18:34:48 DELL kernel: rx notification qid=d5 idx=124 flags=0
type=157 len =244
Jan 20 18:34:48 DELL kernel: interrupt reg 80000008
Jan 20 18:34:48 DELL kernel: rx notification qid=d5 idx=125 flags=2
type=27 len= 128
Jan 20 18:34:48 DELL kernel: rx intr: idx=1 len=128 stat len=89
rssi=63 rate=a c han=11
tstamp=134327501715interrupt reg 80000008
Jan 20 18:34:48 DELL kernel: rx notification qid=d5 idx=126 flags=0
type=157 len =244
Jan 20 18:34:48 DELL kernel: sending data: qid=0 idx=118 len=2 nsegs=1
Jan 20 18:34:48 DELL kernel: wpi0: link state changed to DOWN
Jan 20 18:34:48 DELL dhclient[263]: connection closed
Jan 20 18:34:48 DELL dhclient[263]: exiting.
Also in dmesg
rx intr: idx=39 len=1232 stat len=1193 rssi=4 rate=5 chan=11
tstamp=134441615293rx tail flags error 702
interrupt reg 80000008
rx notification qid=84 idx=238 flags=2 type=27 len=128
rx intr: idx=40 len=128 stat len=89 rssi=63 rate=a chan=11
tstamp=134441677716interrupt reg 80000008
rx notification qid=84 idx=239 flags=0 type=157 len=244
interrupt reg 80000008
rx notification qid=85 idx=12 flags=0 type=157 len=244
interrupt reg 80000008
rx notification qid=85 idx=13 flags=2 type=27 len=128
rx intr: idx=7 len=128 stat len=89 rssi=63 rate=a chan=11
tstamp=134443213720interrupt reg 80000000
rx notification qid=85 idx=14 flags=0 type=157 len=244
interrupt reg 80000008
rx notification qid=85 idx=15 flags=2 type=27 len=128
rx intr: idx=9 len=128 stat len=89 rssi=62 rate=a chan=11
tstamp=134443316118interrupt reg 80000008
rx notification qid=85 idx=16 flags=0 type=157 len=244
interrupt reg 80000008
rx notification qid=85 idx=17 flags=2 type=27 len=128
rx intr: idx=11 len=128 stat len=89 rssi=63 rate=a chan=11
tstamp=134443418515interrupt reg 80000008
rx notification qid=85 idx=18 flags=0 type=157 len=244
interrupt reg 80000008
rx notification qid=85 idx=19 flags=2 type=27 len=128
rx intr: idx=13 len=128 stat len=89 rssi=62 rate=a chan=11
tstamp=134443520918interrupt reg 80000000
rx notification qid=85 idx=20 flags=0 type=157 len=244
--
Regards,
-Abdullah Ibn Hamad Al-Marri
Arab Portal
http://www.WeArab.Net/
_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "[EMAIL PROTECTED]"