linux.git/drivers/message, branch v2.6.26-rc7

[SCSI] fusion mpt: fix target missing after resetting external raid

2008-05-27T15:58:09+00:00

Following a hard reset of a SAS raid, one of the raid targets is occasionally
missing.  I tracked this down to a pretty obscure little bug.

The LSI fusion drivers for SAS and Fibre Channel both use their respective
transport layers.  Those transport layers increment the target number
assigned to new targets.

The routine __scsi_scan_target uses the "this_id" element of the Scsi_Host
structure to avoid scanning the scsi host adapter.  Both fusion drivers set
"this_id" from a value returned in a firmware PortFacts response.  For my
particular test case (SAS) the firmware id assigned to the initiator was
173.  After enough raid resets to cause the raid targets to go and come a
sufficient number of times, the id assigned by the transport to a raid
target would match the id assigned by the host adapter to the "this_id"
field, resulting in that target not being scanned.

Fix by not assigning this_id and not checking it in slave_configure. 

Signed-off-by: Michael Reed 
Acked-by: "Moore, Eric" 
Signed-off-by: James Bottomley

Remove duplicated unlikely() in IS_ERR()

2008-04-29T15:06:25+00:00

Some drivers have duplicated unlikely() macros.  IS_ERR() already has
unlikely() in itself.

This patch cleans up such pointless code.

Signed-off-by: Hirofumi Nakagawa 
Acked-by: David S. Miller 
Acked-by: Jeff Garzik 
Cc: Paul Clements 
Cc: Richard Purdie 
Cc: Alessandro Zummo 
Cc: David Brownell 
Cc: James Bottomley 
Cc: Michael Halcrow 
Cc: Anton Altaparmakov 
Cc: Al Viro 
Cc: Carsten Otte 
Cc: Patrick McHardy 
Cc: Paul Mundt 
Cc: Jaroslav Kysela 
Cc: Takashi Iwai 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers: use non-racy method for proc entries creation (2)

2008-04-29T15:06:22+00:00

Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev 
Cc: Greg Kroah-Hartman 
Cc: Alexey Dobriyan 
Cc: "Eric W. Biederman" 
Cc: Peter Osterlund 
Cc: Bartlomiej Zolnierkiewicz 
Cc: Dmitry Torokhov 
Cc: Neil Brown 
Cc: Mauro Carvalho Chehab 
Cc: Bjorn Helgaas 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

SCSI: convert struct class_device to struct device

2008-04-20T02:10:33+00:00

It's big, but there doesn't seem to be a way to split it up smaller...

Signed-off-by: Tony Jones 
Signed-off-by: Kay Sievers 
Cc: Roland Dreier 
Cc: Sean Hefty 
Cc: Hal Rosenstock 
Cc: James Bottomley 
Signed-off-by: Greg Kroah-Hartman

[SCSI] mpt fusion: fix up msi_enable in mpt_suspend

2008-04-07T17:19:02+00:00

There's a problem with the combination of the upstream power
management fixes and the enabling of MSI by default in that the
suspend path still uses the global variable.  Convert it to check
ioc->msi_enable.

Cc: "Moore, Eric" 
Cc: "Prakash, Sathya" 
Signed-off-by: James Bottomley

[SCSI] mptsas: do not use ioc->handle to locate hba portinfo structure

2008-04-07T17:19:00+00:00

While performing hardware raid reset testing via the raid's client, I
noticed that sometimes, following the reset, that there would be more
raid targets in the lsscsi output than there actually were raid
targets.  I tracked this down to the following issue.

Fusion cannot always find the mptsas_portinfo structure for the hba
because it uses the handle stored in ioc->handle to locate it.  The
problem is that the firmware can change the handle associated with the
hba when h/w raid is reset (via the raid client).  When this happens,
the driver will allocate another mptsas_portinfo structure and link it
into the chain of said structures.  This ultimately causes confusion
within the driver resulting in targets not being removed when they
should be.

Eric Moore pointed out that the hba's portinfo structure is always the
first structure on the sas_topology list.  This patch modifies
mptsas.c to access the hba's portinfo structure by taking the first
structure on said list.

Signed-off-by: Michael Reed 
Acked-by: "Moore, Eric" 
Signed-off-by: James Bottomley

[SCSI] mpt fusion: convert inactive_list_mutex to a mutex

2008-04-07T17:15:44+00:00

the semaphore inactive_list_mutex is used as a mutex, convert it to
the mutex API

Signed-off-by: Matthias Kaehlcke 
Acked-by: "Moore, Eric" 
Signed-off-by: James Bottomley

[SCSI] mpt fusion: Enable MSI by default for SAS controllers

2008-04-07T17:15:43+00:00

This patch modifies the driver to enable MSI by default for all SAS chips.

Signed-off-by: Sathya Prakash 
Signed-off-by: James Bottomley

[SCSI] mpt fusion: Power Management fixes for MPT SAS PCI-E controllers

2008-03-18T20:13:40+00:00

The system power state changes like hibernation and standby are not happening
properly with 106XE controllers, this patch modifies the driver to free
resources and allocate resources in power management entry points

[jejb: compile fixes for upstream]

Signed-off-by: Sathya Prakash 
Signed-off-by: James Bottomley

[SCSI] mpt fusion: don't oops if NumPhys==0

2008-03-05T20:57:57+00:00

Don't oops if NumPhys==0, instead return -ENODEV.
This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=9909

Signed-off-by: Krzysztof Piotr Oledzki 
Acked-by: Eric Moore 
Signed-off-by: Andrew Morton 
Signed-off-by: James Bottomley