linux-kernel - Re: sk98lin for 2.6.23-rc1

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Date:	Sun, 9 Sep 2007 05:54:45 -0700 (PDT)
From:	Chris Stromsoe <cbs@....ucla.edu>
To:	Adrian Bunk <bunk@...nel.org>
cc:	Bill Davidsen <davidsen@....com>,
	James Corey <ploversegg@...oo.com>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Rob Sims <lkml-z@...sims.com>, Kyle Rose <krose@...mai.com>,
	linux-kernel@...r.kernel.org
Subject: Re: sk98lin for 2.6.23-rc1

On Sat, 8 Sep 2007, Adrian Bunk wrote:
> On Sat, Sep 08, 2007 at 01:44:20PM -0400, Bill Davidsen wrote:
>
>> Haven't tried later kernels, don't intend to, while no network is 
>> really secure, it not really useful.
>
> You are a regular reader of linux-kernel, and therefore the sk98lin 
> removal can hardly be a surprise for you. If you prefer whining over 
> helping to improve the kernel that's your choice...

I've been trying to migrate off sk98lin to skge since earlier this year, 
without success, starting with 2.6.18 or .19.

I have several of these cards in production using the sk98lin driver:

fresno:~# lspci -vv -s 02:01
02:01.0 Ethernet controller: SysKonnect SK-9872 Gigabit Ethernet Server Adapter (SK-NET GE-ZX dual link) (rev 11)
         Subsystem: SysKonnect SK-9844 Gigabit Ethernet Server Adapter (SK-NET GE-SX dual link)
         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
         Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
         Latency: 64 (5750ns min, 7750ns max), Cache Line Size: 32 bytes
         Interrupt: pin A routed to IRQ 22
         Region 0: Memory at febfc000 (32-bit, non-prefetchable) [size=16K]
         Region 1: I/O ports at e800 [size=256]
         Expansion ROM at febc0000 [disabled] [size=128K]
         Capabilities: [48] Power Management version 1
                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 PME-Enable- DSel=0 DScale=1 PME-
         Capabilities: [50] Vital Product Data

They are dual port SX fiber.  Both ports are connected.  If I do this:

fresno:~# modprobe skge
fresno:~# ip li set eth2 up
fresno:~# ip li set eth2 down
fresno:~# ip li set eth3 up

the system locks up and I have to power cycle it.  The order doesn't 
matter (if I do eth3 up/down, then eth2 up kills it).

I don't have any problems with sk98lin.  This works fine:

fresno:~# modprobe sk98lin RlmtMode=DualNet
fresno:~# ip li set eth2 up
fresno:~# ip li set eth2 down
fresno:~# ip li set eth3 up
fresno:~# ip li set eth3 down


I am more than happy to test various driver changes, and have tried a few 
suggested patches but nothing has worked so far.  I would like to be using 
skge instead of sk98lin, but so far haven't had any success.




-Chris
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