Date: Fri, 24 Feb 2006 15:39:57 +1100 From: Norberto Meijome <freebsd@meijome.net> To: Nathan Lay <nslay@comcast.net> Cc: freebsd-questions@freebsd.org Subject: Re: if_iwi on FreeBSD 6.0 on a Thinkpad T43 Message-ID: <43FE8E1D.2010506@meijome.net> In-Reply-To: <43FE042F.1050300@comcast.net> References: <43FE042F.1050300@comcast.net>
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Nathan Lay wrote: > Hi all, > I've encountered a peculiar quirk in either this laptop or FreeBSD > with IPW2915ABG. For some reason or another, either the Thinkpad > turns the card on at bootup, or FreeBSD's if_iwi driver and acpi_ibm > mistakenly think the card is turned on. > > My loaded modules: > Id Refs Address Size Name > 1 14 0xc0400000 4033b4 kernel > 2 1 0xc0804000 5e28 snd_ich.ko > 3 2 0xc080a000 20448 sound.ko > 4 1 0xc082b000 3f44 acpi_ibm.ko > 5 17 0xc082f000 6057c acpi.ko > 6 1 0xc0890000 41c4 wlan_tkip.ko > 7 1 0xc0895000 6fe4 wlan_ccmp.ko > 8 1 0xc1d7c000 18000 linux.ko > > Notice that if_iwi is NOT loaded. > > Let's have a look at dev.acpi_ibm.0.wlan > dev.acpi_ibm.0.wlan: 1 > > Well thats odd, why would acpi think the wireless chip is turned on > with no driver loaded? > > Let's load if_iwi for kicks > > iwi0: <Intel(R) PRO/Wireless 2915ABG> mem 0xa8401000-0xa8401fff irq 11 > at device 2.0 on pci4 > iwi0: Ethernet address: 00:13:ce:b7:ea:8 > > That works just fine it seems. > But then: > > %iwicontrol iwi0 -r > Radio is ON > > > So, now that the driver is loaded, both if_iwi and acpi_ibm think the > card is turned on, but there is no firmware loaded. > Loading a firmware and then using either `ifconfig iwi0 up' or > `dhclient iwi0' does absolutely nothing. > > I've tried various things with the kernel and BIOS but with no luck. > > here is my uname: > FreeBSD LIGHTBULB.LOCAL 6.0-RELEASE-p4 FreeBSD 6.0-RELEASE-p4 #19: Mon > Feb 20 15:06:16 EST 2006 > root@LIGHTBULB.LOCAL:/usr/obj/usr/src/sys/LIGHTBULB i386 > > Keep in mind, this also happens on GENERIC. > > So, is this a bug in FreeBSD or a quirk in the laptop? I've pondered > whether to submit a PR but I'm not sure what exactly is going on > here. Even disabling the card in the BIOS, acpi_ibm will still > indicate that wlan is turned on. > If anyone can clue me in here, please please do so. Until then I'm > surfing with an atheros card :) Hi there, iwi0 works fine here on a Toshiba Tecra laptop, both with if_iwi.ko or built into the kernel. Since 6.0 Release, now on 6.1 Pre#2. Beto
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