Date: Mon, 09 Nov 2009 20:14:18 +0200 From: Serge Semenenko <serge@a-1.com.ua> To: John Baldwin <jhb@freebsd.org>, freebsd-acpi@freebsd.org Subject: Re: general issue with suspend/resume with iwn(4)/bge(4) Message-ID: <4AF85BFA.6090107@a-1.com.ua> In-Reply-To: <200911090743.48565.jhb@freebsd.org> References: <200911081219.09397.bschmidt@techwires.net> <200911090743.48565.jhb@freebsd.org>
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John Baldwin wrote:
On Sunday 08 November 2009 6:19:09 am Bernhard Schmidt wrote:
Hi,
I hope this is the correct list for an issue like that, if not, a pointer
would be appreciated.
I've been in contact with Mykola Dzham quite some time now and we are trying
to figure out a resume issue on his iwn(4) device. It does seem that this
device does not come up correctly after suspend. The interesting part is, that
even pciconf -l -bcv ist not able to get all information.
Before suspend:
iwn0@pci0:6:0:0: class=0x028000 card=0x13018086 chip=0x42328086
rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = 'Carte Intel WiFi Link 5100 AGN (Intel WiFi Link 5100)'
class = network
bar [10] = type Memory, range 64, base 0xec800000, size 8192, enabled
cap 01[c8] = powerspec 3 supports D0 D3 current D0
cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
cap 10[e0] = PCI-Express 1 endpoint max data 128(128) link x1(x1)
After resume:
iwn0@pci0:6:0:0: class=0x028000 card=0x13018086 chip=0x42328086
rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = 'Carte Intel WiFi Link 5100 AGN (Intel WiFi Link 5100)'
class = network
Are you sure you didn't forget the extra options to pciconf here? The bar
should definitely not disappear since we save that state in software, not
in hardware. Also, the capability pointer register is set by the hardware,
software never changes it.
It looks similar to PR
[1]http://www.freebsd.org/cgi/query-pr.cgi?pr=135070 for me. And if I
understood right you're already working on the solution...
References
1. http://www.freebsd.org/cgi/query-pr.cgi?pr=135070
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