Re: Sky2 driver dies some time after resume

[Stephen Hemminger <shemminger@linux-foundation.org>]

On Mon, 21 May 2007 18:29:17 -0300
Mauro Carvalho Chehab <mchehab@infradead.org> wrote:

> Hi Stephen,
> 
> I've noticing a weird behavior on sky2 driver after returning from
> suspend. 
> 
> After returning, the driver works as expected. However, after some usage
> at the interface, it behaves like if the network were down.
> 
> The workaround I'm currently using is manually removing sky2 driver and
> reinserting.
> 
> This bug is present on all kernel versions I tested on this machine,
> since when I bought it, on Feb, 2007. I'm currently running 2.6.20.7 on
> this notebook.
> 
> The SKY2 hardware is:
> 
> 02:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8038 PCI-E Fast Ethernet Controller [11ab:4352] (rev 14)
>         Subsystem: Gateway 2000 Unknown device [107b:0367]
>         Flags: bus master, fast devsel, latency 0, IRQ 318
>         Memory at c0200000 (64-bit, non-prefetchable) [size=16K]
>         I/O ports at a000 [size=256]
>         Capabilities: [48] Power Management version 2
>         Capabilities: [50] Vital Product Data
>         Capabilities: [5c] Message Signalled Interrupts: Mask- 64bit+ Queue=0/1 Enable+
>         Capabilities: [e0] Express Legacy Endpoint IRQ 0
>         Capabilities: [100] Advanced Error Reporting
> 

Which distro? some scripts are different.

Also, check if MSI is being restore properly on resume. There are some BIOS's
that muck with MSI when ACPI calls them during resume. On Sony VAIO laptop,
I needed to disable MSI or it resume wouldn't work.

Linus also reported some oddness where the driver couldn't send big packets.
Could you try:
	ethtool -r eth0
That causes a phy renegotiation .

-- 
Stephen Hemminger <shemminger@linux-foundation.org>