netdev - Re: [PATCH] mwl8k: Add 0x2a02 PCI device-id (Marvell 88W8361)

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Date:	Sat, 28 Apr 2012 17:11:06 -0600
From:	Jim Cromie <jim.cromie@...il.com>
To:	sedat.dilek@...il.com
Cc:	Lennert Buytenhek <buytenh@...tstofly.org>,
	"John W. Linville" <linville@...driver.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	lautriv <admin@...dplug.net>
Subject: Re: [PATCH] mwl8k: Add 0x2a02 PCI device-id (Marvell 88W8361)

On Sat, Apr 28, 2012 at 4:49 PM, Sedat Dilek <sedat.dilek@...glemail.com> wrote:
> On Sun, Apr 29, 2012 at 12:36 AM, Jim Cromie <jim.cromie@...il.com> wrote:

>>>> As already pointed out, no Marwell WLAN hardware here. Marvell comics
>>>> of course :-).

(I had to leave that one..:-)



>>>
>>> A new tarball from lautriv with same outputs as before, but now tested
>>> with Linux-3.4-rc4.
>>>
>>> - Sedat -
>>
>>
>> heres my logs, using firmware extracted by Sedat's script,
>> and the patch on mwl8k.c
>>
>> bottom-line, it appears to be working.
>>
>> its contents are a bit more pedantic, and includes data for
>> another wifi card (rtl8180 based) also in the box.
>> It was obtained by this script:
>>
>> #!/bin/bash
>>
>> # dmesg (Linux-3.3.3)
>> # e_n_a (/etc/network/interfaces)
>> # ifconfig output
>> # iwconfig output
>> # iw_phy output
>> # ps_axu (WPA) output
>>
>> devs="wlan0 wlan1"
>> apmac=00:14:d1:e8:65:0a
>>
>> loudly () {
>>    echo "# $@"
>>    fname=`echo $@ | sed -e 's/ /-/g'`
>>    $@ 2> $fname-err | tee $fname
>>    [ $? != 0 ] && echo non-zero exit on $fname: $?
>>    [ -s $fname-err ] || rm $fname-err
>> }
>>
>> ( iw --debug event -f > iw-event-f )&
>> pid_event=$!
>>
>> for N in 0 1 ; do
>>    loudly iw dev wlan$N interface add fish$N type monitor # flags none
>>    loudly iw dev fish$N set channel 8
>>    loudly ifconfig fish$N up
>>    ( tcpdump -i fish$N -s 65000 -p -U -w  fish$N.dump )&
>>    pid_dump_fish$N=$!
>> done
>>
>> loudly iw list
>>
>> #loudly iwspy
>> # gives: Interface doesn't support wireless statistic collection
>>
>> for dev in $devs ; do
>>    loudly ifconfig $dev
>>    loudly iwconfig $dev
>>    loudly iwlist $dev scan
>>    loudly iw dev $dev info
>>    loudly iw dev $dev link
>>    loudly iw dev $dev scan
>>    loudly iw dev $dev survey dump
>> done
>>
>> for phy in $phys ; do
>>    loudly iw phy $phy info
>> done
>>
>> # these are unsupported on wlan0
>> loudly iw dev wlan1 survey dump
>> loudly iw dev wlan1 station dump
>> loudly iw dev wlan1 station get $apmac
>>
>>
>> for N in 0 1 ; do
>>    loudly iw dev fish$N del
>> done
>>
>> kill $pid_dump_fish0 $pid_dump_fish0
>> kill $pid_event
>>
>> dmesg > dmesg
>>
>> grep -vE '^#|key' /etc/network/interfaces > e_n_a
>>
>> exit
>
> Hi Jim,
>
> thanks for your testing and the nice testcase-script!
>
> lautriv you wanna run some more tests with Jim's script?
>
> Jim, how stable/fast/reliable is your WLAN connection?
> Suspend/resume tested?

I havent tested reliability in any way.
in fact, I havent tested any data-xfer per se,
will do an iperf test soon.

That said, bitrate is quite low, I havent looked at why.

jimc@...mly:~/projects/lx/wifi/mwl8k-8361p-logs$ grep -i MBit *
iw-dev-wlan0-link:	tx bitrate: 11.0 MBit/s
iw-dev-wlan1-link:	tx bitrate: 1.0 MBit/s
iw-dev-wlan1-station-dump:	tx bitrate:	1.0 MBit/s
iw-dev-wlan1-station-get-00:14:d1:e8:65:0a:	tx bitrate:	1.0 MBit/s

my laptop is much faster than both cards in the soekris box, to same AP

Connected to 00:14:d1:e8:65:0a (on wlan0)
	SSID: yoduh
	freq: 2447
	RX: 191134302 bytes (2120068 packets)
	TX: 17440426 bytes (120666 packets)
	signal: -45 dBm
	tx bitrate: 54.0 MBit/s

	bss flags:	
	dtim period:	0
	beacon int:	100


If you all have some suggestions on this, Id like to hear them.
And of course, any other testing you'd like too.


>
> Hope this helps to get native Linux support for 8361p.

hear hear.
FWIW,  I pulled this card out of a dead Netgear WNR854T,
which is linux based (and GPL compliant)

> Regards,
> - Sedat -
>
> P.S.: BTW, only to clarify it should be "e_n_i" as short-form for
> /etc/network/interfaces file, but e_n_a sounds more female and nicer
> :-).

I caught that, but it wasnt worth "correcting" ;-)

thanks
Jim
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