Re: [Qemu-devel] [PATCH] Megasas HBA emulation and SCSI update v.2

[Hannes Reinecke <hare@suse.de>]

Hey Nic,

On 11/24/2010 10:41 AM, Nicholas A. Bellinger wrote:
> On Mon, 2010-11-22 at 11:34 +0100, Hannes Reinecke wrote:
[ .. ]
> 
> Hey Hannes,
> 
> Just a heads up, I noticed that the latest v2 megasas w/ scsi-generic ->
> TCM_loop appears to be broken on a Windows7 (Build 7600) guest, which
> hangs during boot -> LUN scan with the following:
> 
> truelife:/usr/src/qemu-kvm.git# ./x86_64-softmmu/qemu-system-x86_64 -m 512 -boot c ~/windows7.img \
> 		-drive if=none,id=mydisk1,file=/dev/sg4 -device megasas,id=raid
> 		-device scsi-generic,bus=raid.0,scsi-id=1,drive=mydisk1
> 
> megasas: Using 80 sges, 1000 cmds, raid mode
> megasas: Reset
> megasas: Mapping MMIO region 0 at f2040000
> megasas: Mapping IO region 2 at 0000c200
> megasas: Mapping QUEUE region 3 at f2080000
> megasas: Mapping MMIO region 0 at f2040000
> megasas: Mapping IO region 2 at 0000c200
> megasas: Mapping QUEUE region 3 at f2080000
> megasas: Mapping MMIO region 0 at f2040000
> megasas: Mapping IO region 2 at 0000c200
> megasas: Mapping QUEUE region 3 at f2080000
> megasas: readl mmio 0xb0
> megasas: writel mmio 20: 7
> megasas: Reset
> megasas: readl mmio 0x20
> megasas: writel mmio 40: 1ff9c041
> megasas: Received frame addr 1ff9c000 count 32
> megasas: MFI cmd 0 context 0 count 32
> megasas: Return new frame 0 cmd 0x7f7711654330
> megasas: Enqueue frame 0 count 32 context 0 tail 0 busy 1
> megasas: MFI init firmware: xfer len 0 pa 0
> megasas: MFI init firmware: queue at f000ff53f000e2c3 len -268370093 head f000ff53f000ff53 tail f000ff53f000ff53
> megasas: Complete frame context 0
> 
Okay, it looks as if I've fixed it up.
Win7 32bit works now with my megasas.v3 tree.
Curiously, Win7 64bit fails; it crashes at relative address
28F4, wherever that's supposed to be.
And, of course, Windows Vista with newest driver from LSI fails, too
:-(.
Guess I need to do some more debugging here.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
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