linux-toradex.git/drivers/block/cciss.c, branch v3.6.1

block: add and use scsi_blk_cmd_ioctl

2012-01-14T23:07:24+00:00

Introduce a wrapper around scsi_cmd_ioctl that takes a block device.

The function will then be enhanced to detect partition block devices
and, in that case, subject the ioctls to whitelisting.

Cc: linux-scsi@vger.kernel.org
Cc: Jens Axboe 
Cc: James Bottomley 
Signed-off-by: Paolo Bonzini 
Signed-off-by: Linus Torvalds

cciss: fix flush cache transfer length

2011-11-28T19:12:05+00:00

We weren't filling in the transfer length of the
flush cache command (it transfers 4 bytes of zeroes).
Firmware didn't seem to be bothered by this, but it
should be fixed.

Signed-off-by: Stephen M. Cameron 
Signed-off-by: Jens Axboe

cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler

2011-11-28T19:12:05+00:00

IRQF_SHARED is required for older controllers that don't support MSI(X)
and which may end up sharing an interrupt.

Also remove deprecated IRQF_DISABLED.

Signed-off-by: Stephen M. Cameron 
Signed-off-by: Jens Axboe

cciss: auto engage SCSI mid layer at driver load time

2011-11-16T08:21:49+00:00

A long time ago, probably in 2002, one of the distros, or maybe more than
one, loaded block drivers prior to loading the SCSI mid layer.  This meant
that the cciss driver, being a block driver, could not engage the SCSI mid
layer at init time without panicking, and relied on being poked by a
userland program after the system was up (and the SCSI mid layer was
therefore present) to engage the SCSI mid layer.

This is no longer the case, and cciss can safely rely on the SCSI mid
layer being present at init time and engage the SCSI mid layer straight
away.  This means that users will see their tape drives and medium
changers at driver load time without need for a script in /etc/rc.d that
does this:

for x in /proc/driver/cciss/cciss*
do
	echo "engage scsi" > $x
done

However, if no tape drives or medium changers are detected, the SCSI mid
layer will not be engaged.  If a tape drive or medium change is later
hot-added to the system it will then be necessary to use the above script
or similar for the device(s) to be acceesible.

Signed-off-by: Stephen M. Cameron 
Signed-off-by: Andrew Morton 
Signed-off-by: Jens Axboe

The Windows driver .inf disables ASPM on all cciss devices. Do the same.

2011-11-11T21:05:54+00:00

Signed-off-by: Matthew Garrett 
Cc: iss_storagedev@hp.com
Acked-by: Mike Miller 
Signed-off-by: Jens Axboe

cciss: add small delay when using PCI Power Management to reset for kump

2011-10-20T20:21:52+00:00

The P600 requires a small delay when changing states. Otherwise we may think
the board did not reset and we bail. This for kdump only and is particular
to the P600.

Cc: stable@kernel.org
Signed-off-by: Jens Axboe

cciss: add transport mode attribute to sys

2011-08-08T09:40:17+00:00

Signed-off-by: Joseph Handzik 
Acked-by: Stephen M. Cameron 
Signed-off-by: Jens Axboe

cciss: Adds simple mode functionality

2011-08-08T09:40:15+00:00

Signed-off-by: Joseph Handzik 
Acked-by: Stephen M. Cameron 
Signed-off-by: Jens Axboe

cciss: fix compile issue

2011-05-06T14:27:00+00:00

drivers/block/cciss.c: In function ‘cciss_send_reset’:
drivers/block/cciss.c:2515:2: error: implicit declaration of function ‘fill_cmd’
drivers/block/cciss.c: At top level:
drivers/block/cciss.c:2531:12: error: conflicting types for ‘fill_cmd’
drivers/block/cciss.c:2534:1: note: an argument type that has a default promotion can’t match an empty parameter name list declaration
drivers/block/cciss.c:2515:18: note: previous implicit declaration of ‘fill_cmd’ was here
make[1]: *** [drivers/block/cciss.o] Error 1
make: *** [drivers/block/cciss.o] Error 2

Move fill_cmd() to above where it is first used.

Signed-off-by: Jens Axboe

cciss: add cciss_tape_cmds module paramter

2011-05-06T14:23:59+00:00

This is to allow number of commands reserved for use by SCSI tape drives
and medium changers to be adjusted at driver load time via the kernel
parameter cciss_tape_cmds, with a default value of 6, and a range
of 2 - 16 inclusive.  Previously, the driver limited the number of
commands which could be queued to the SCSI half of the the driver
to only 2.  This is to fix the problem that if you had more than
two tape drives, you couldn't, for example, erase or rewind them all
at the same time.

Signed-off-by: Stephen M. Cameron 
Signed-off-by: Jens Axboe