litmus-rt.git/drivers/message/fusion, branch master

scsi: drop reason argument from ->change_queue_depth

2014-11-24T13:45:27+00:00

Drop the now unused reason argument from the ->change_queue_depth method.
Also add a return value to scsi_adjust_queue_depth, and rename it to
scsi_change_queue_depth now that it can be used as the default
->change_queue_depth implementation.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Christie 
Reviewed-by: Hannes Reinecke

scsi: don't set tagging state from scsi_adjust_queue_depth

2014-11-12T10:19:43+00:00

Remove the tagged argument from scsi_adjust_queue_depth, and just let it
handle the queue depth.  For most drivers those two are fairly separate,
given that most modern drivers don't care about the SCSI "tagged" status
of a command at all, and many old drivers allow queuing of multiple
untagged commands in the driver.

Instead we start out with the ->simple_tags flag set before calling
->slave_configure, which is how all drivers actually looking at
->simple_tags except for one worke anyway.  The one other case looks
broken, but I've kept the behavior as-is for now.

Except for that we only change ->simple_tags from the ->change_queue_type,
and when rejecting a tag message in a single driver, so keeping this
churn out of scsi_adjust_queue_depth is a clear win.

Now that the usage of scsi_adjust_queue_depth is more obvious we can
also remove all the trivial instances in ->slave_alloc or ->slave_configure
that just set it to the cmd_per_lun default.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Christie 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Martin K. Petersen

scsi: always assign block layer tags if enabled

2014-11-12T10:19:43+00:00

Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq.  This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Christie 
Reviewed-by: Martin K. Petersen 
Reviewed-by: Hannes Reinecke

mptfusion: don't change queue type in ->change_queue_depth

2014-11-12T10:19:42+00:00

This function shouldn't change the queue type, just the depth.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Christie 
Reviewed-by: Martin K. Petersen 
Reviewed-by: Hannes Reinecke

scsi: remove ordered_tags scsi_device field

2014-11-12T10:19:40+00:00

Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Christie 
Reviewed-by: Bart Van Assche 
Reviewed-by: Martin K. Petersen

Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2014-10-08T01:29:18+00:00

Pull SCSI updates from James Bottomley:
 "This patch set consists of the usual driver updates (megaraid_sas,
  arcmsr, be2iscsi, lpfc, mpt2sas, mpt3sas, qla2xxx, ufs) plus several
  assorted fixes and miscellaneous updates (including the
  pci_msix_enable_range() changes that have been pending for a while)"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (202 commits)
  scsi: add a CONFIG_SCSI_MQ_DEFAULT option
  ufs: definitions for phy interface
  ufs: tune bkops while power managment events
  ufs: Add support for clock scaling using devfreq framework
  ufs: Add freq-table-hz property for UFS device
  ufs: Add support for clock gating
  ufs: refactor configuring power mode
  ufs: add UFS power management support
  ufs: introduce well known logical unit in ufs
  ufs: manually add well known logical units
  ufs: Active Power Mode - configuring bActiveICCLevel
  ufs: improve init sequence
  ufs: refactor query descriptor API support
  ufs: add voting support for host controller power
  ufs: Add clock initialization support
  ufs: Add regulator enable support
  ufs: Allow vendor specific initialization
  scsi: don't add scsi_device if its already visible
  scsi: fix the type for well known LUs
  scsi: fix comment in struct Scsi_Host definition
  ...

mptfusion: enable no_write_same for vmware scsi disks

2014-09-25T12:24:48+00:00

When using a virtual SCSI disk in a VMWare VM if blkdev_issue_zeroout is used
data can be improperly zeroed out using the mptfusion driver. This patch
disables write_same for this driver and the vmware subsystem_vendor which
ensures that manual zeroing out is used instead.

Cc: stable@vger.kernel.org
BugLink: http://bugs.launchpad.net/bugs/1371591
Reported-by: Bruce Lucas 
Tested-by: Chris J Arges 
Signed-off-by: Chris J Arges 
Reviewed-by: Martin K. Petersen 
Signed-off-by: Christoph Hellwig

scsi: use 'depends' instead of 'select' for SCSI_FC_ATTRS

2014-09-16T20:55:55+00:00

There are other kconfig symbols which use SCSI_FC_ATTRS.
In order to maintain sanity and prevent kconfig warnings, change
all of these from using 'select' to using 'depends on' so that
proper symbol dependencies will be honored and circular depends
problems will be avoided.
This fixes kconfig warnings and build errors:

warning: (LIBFC && SCSI_IBMVFC && SCSI_QLA_FC && SCSI_LPFC && ZFCP && SCSI_BFA_FC && SCSI_CHELSIO_FCOE && FUSION_FC) selects SCSI_FC_ATTRS which has unmet direct dependencies (SCSI && NET)
drivers/scsi/scsi_transport_fc.c: In function 'fc_host_post_event':
drivers/scsi/scsi_transport_fc.c:543:7: error: 'scsi_nl_sock' undeclared (first use in this function)
drivers/scsi/scsi_transport_fc.c: In function 'fc_host_post_vendor_event':
drivers/scsi/scsi_transport_fc.c:611:7: error: 'scsi_nl_sock' undeclared (first use in this function)

Reported-by: Fengguang Wu  [0-day test robot]
Signed-off-by: Randy Dunlap 
Signed-off-by: David S. Miller

fusion: fix excess parameter kernel-doc warning

2014-09-16T16:09:49+00:00

Fix kernel-doc excess parameter warning:

Warning(..//drivers/message/fusion/mptbase.c:1411): Excess function parameter 'prod_name' description in 'mpt_get_product_name'

Signed-off-by: Randy Dunlap 
Reviewed-by: Ewan D. Milne 
Signed-off-by: Christoph Hellwig

mptfusion: simplify rounding

2014-09-16T16:09:43+00:00

Rounding up to a multiple of 4 should be done using the ALIGN
macro. As a bonus, this also makes the generated code smaller.

In GetIocFacts(), sz is assigned to a few lines below without being
read in the meantime, so it is ok that it doesn't end up with the same
value as facts->FWImageSize.

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Joe Lawrence 
Signed-off-by: Christoph Hellwig