Date: Thu, 17 Apr 2008 09:14:23 -0400 From: Dan Langille <dan@langille.org> To: Takashi Inoue <takash-i@sophia.ac.jp> Cc: freebsd-mobile@FreeBSD.org Subject: Re: pciconf -w Message-ID: <48074D2F.4050602@langille.org> In-Reply-To: <4806FD1D.9030706@sophia.ac.jp> References: <4805E5A2.1070705@sophia.ac.jp> <200804161037.26572.jhb@freebsd.org> <1208358909.10448.1.camel@RabbitsDen> <20080416.183606.-772296126.imp@bsdimp.com> <4806FD1D.9030706@sophia.ac.jp>
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Takashi Inoue wrote: > M. Warner Losh wrote: > >> In message: <1208358909.10448.1.camel@RabbitsDen> >> "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com> writes: >> : On Wed, 2008-04-16 at 10:37 -0400, John Baldwin wrote: >> : > On Wednesday 16 April 2008 07:40:18 am Takashi Inoue wrote: >> : > > Hi friends, >> : > > >> : > > Does anyone know how to trun off a pci device using pciconf -w ? >> : > > >> : > > Becase my MiniPCI Express wireless card is realy hot, >> : > > I want to turn off when I don't need it. >> : > > >> : > > >> : > > ath0@pci0:3:0:0: class=0x020000 card=0x058a1014 >> chip=0x1014168c >> : > > rev=0x01 hdr=0x00 >> : > > vendor = 'Atheros Communications Inc.' >> : > > device = 'AR5212 Atheros AR5212 802.11abg wireless' >> : > > class = network >> : > > subclass = ethernet >> : > > cap 01[40] = powerspec 2 supports D0 D3 current D0 >> : > > cap 05[50] = MSI supports 1 message >> : > > cap 10[60] = PCI-Express 1 legacy endpoint >> : > > cap 11[90] = MSI-X supports 1 message in map 0x10 >> : > : > Bug warner (imp@FreeBSD.org) for his devctl patch and use that >> to turn it off. >> : > : Just out of curiosity... would setting >> hw.pci.do_power_nodriver="3" and >> : unloading if_ath.ko do the trick? >> >> Yes. > > No. > > none1@pci0:3:0:0: class=0x020000 card=0x058a1014 chip=0x1014168c > rev=0x01 hdr=0x00 > vendor = 'Atheros Communications Inc.' > device = 'AR5212 Atheros AR5212 802.11abg wireless' > class = network > subclass = ethernet > cap 01[40] = powerspec 2 supports D0 D3 current D0 > cap 05[50] = MSI supports 1 message > cap 10[60] = PCI-Express 1 legacy endpoint > cap 11[90] = MSI-X supports 1 message in map 0x10 > > As you see, even in case without driver, > it's power status is D0 and the device is hot. > Setting hw.....nodriver=3 has no effect. > I think I need to write D3 by hand. I have a ThinkPad X61s. Here is what I see when ath0 is up: ath0@pci0:3:0:0: class=0x020000 card=0x058a1014 chip=0x1014168c rev=0x01 hdr=0x00 vendor = 'Atheros Communications Inc.' device = 'AR5212 Atheros AR5212 802.11abg wireless' class = network subclass = ethernet cap 01[40] = powerspec 2 supports D0 D3 current D0 cap 05[50] = MSI supports 1 message cap 10[60] = PCI-Express 1 legacy endpoint cap 11[90] = MSI-X supports 1 message in map 0x10 After an ifconfig ath0 down: ath0@pci0:3:0:0: class=0x020000 card=0x058a1014 chip=0x1014168c rev=0x01 hdr=0x00 vendor = 'Atheros Communications Inc.' device = 'AR5212 Atheros AR5212 802.11abg wireless' class = network subclass = ethernet cap 01[40] = powerspec 2 supports D0 D3 current D0 cap 05[50] = MSI supports 1 message cap 10[60] = PCI-Express 1 legacy endpoint cap 11[90] = MSI-X supports 1 message in map 0x10 after hw.pci.do_power_nodriver="3" ath0@pci0:3:0:0: class=0x020000 card=0x058a1014 chip=0x1014168c rev=0x01 hdr=0x00 vendor = 'Atheros Communications Inc.' device = 'AR5212 Atheros AR5212 802.11abg wireless' class = network subclass = ethernet cap 01[40] = powerspec 2 supports D0 D3 current D0 cap 05[50] = MSI supports 1 message cap 10[60] = PCI-Express 1 legacy endpoint cap 11[90] = MSI-X supports 1 message in map 0x10 As for loaded modules: [root@laptop ~]# kldstat | grep ath [root@laptop ~]# HTH
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