On Thursday 02 August 2007 10:05:44 Joachim Deguara wrote:
> On Wednesday 01 August 2007 23:00:23 Michael Chan wrote:
> > On Wed, 2007-08-01 at 10:47 -0700, Michael Chan wrote:
> > The problem is that memory enable and bus master were not set in PCI
> > register 4 after resume. This also explains the register access
> > failures.
Found it! I did the instrumentation and found pci_restore was not being
called. Why, because this code failed:
printk(KERN_INFO "tg3_resume: entered\n");
if (!netif_running(dev))
return 0;
printk(KERN_INFO "tg3_resume: before restore\n");
Bad dmesg:
[ 0.581236] PM: Writing back config space on device 0000:07:00.0 at offset
4
(was 4, writing d0200004)
[ 0.581259] tg3_resume: entered
[ 0.581276] PM: Writing back config space on device 0000:08:09.0 at offset
f
(was c001ff, writing 1c0010b)
why is this, oh damn it is because I was calling openSUSE's "powersave -u" and
not s2ram directly. powersave is disabling the network and the tg3 will not
restore the pci device like this! right?
here is a good dmesg with by calling s2ram:
[ 0.577085] PM: Writing back config space on device 0000:07:00.0 at offset
4
(was 4, writing d0200004)
[ 0.577108] tg3_resume: entered
[ 0.577109] tg3_resume: before restore
[ 0.577140] PM: Writing back config space on device 0000:08:04.0 at offset
c
(was 0, writing ffff0000)
[ 0.577171] PM: Writing back config space on device 0000:08:04.0 at offset
1
(was 2b00000, writing 2b00006)
[ 0.577304] tg3_resume: after set_power_state
[ 0.579119] tg3: eth0: Link is down.
[ 0.786266] ata2: SATA link down (SStatus 0 SControl 310)
[ 0.848176] tg3_resume: after tg3_restart_hw
[ 0.848265] PM: Writing back config space on device 0000:08:09.0 at offset
f
(was c001ff, writing 1c0010b)
Seams like even if powersave shuts down the network that the device should
still work after a suspend to ram, so who is at fault here?
-Joachim
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