linux.git/drivers/nvme/target/admin-cmd.c, branch v4.12

Merge branch 'for-linus' into for-4.12/block

2017-04-07T18:45:20+00:00

We've added a considerable amount of fixes for stalls and issues
with the blk-mq scheduling in the 4.11 series since forking
off the for-4.12/block branch. We need to do improvements on
top of that for 4.12, so pull in the previous fixes to make
our lives easier going forward.

Signed-off-by: Jens Axboe

nvmet: use symbolic constants for log identifiers

2017-04-04T15:48:23+00:00

Signed-off-by: Max Gurtovoy 
Reviewed-by: Parav Pandit 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvmet: Introduced helper routine for controller status check.

2017-04-04T15:48:23+00:00

This patch introduces helper function for checking controller
status during admin and io command processing which returns u16
status. As to bring consistency on returning status, other
friend functions also now return u16 status instead of int
to match the spec.

As part of the theseerror log prints in also prints qid on
which command error occured.

Signed-off-by: Parav Pandit 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvmet: Fixed avoided printing nvmet: twice in error logs.

2017-04-04T15:48:23+00:00

This patch avoids printing "nvmet:" twice in error logs as its already
coming through pr_fmt macro.

Reviewed-by: Max Gurtovoy 
Signed-off-by: Parav Pandit 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvmet: add missing byte swap in nvmet_get_smart_log

2017-04-02T07:24:15+00:00

In this case entirely harmless as it's all-ones, but still nice to
shut up sparse.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Sagi Grimberg

sched/headers: Prepare to use instead of in

2017-03-02T07:42:38+00:00

We don't actually need the full rculist.h header in sched.h anymore,
we will be able to include the smaller rcupdate.h header instead.

But first update code that relied on the implicit header inclusion.

Acked-by: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

nvme: Use CNS as 8-bit field and avoid endianness conversion

2017-02-22T20:34:00+00:00

This patch defines CNS field as 8-bit field and avoids cpu_to/from_le
conversions.
Also initialize nvme_command cns value explicitly to NVME_ID_CNS_NS
for readability (don't rely on the fact that NVME_ID_CNS_NS = 0).

Reviewed-by: Max Gurtovoy 
Signed-off-by: Parav Pandit 
Reviewed-by: Keith Busch 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvme: admin-cmd: fix spelling mistake: "Counld" -> "Could"

2017-02-22T20:34:00+00:00

trivial fix to spelling mistake in pr_err message

Signed-off-by: Colin Ian King 
Signed-off-by: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvmet: fix KATO offset in Set Features

2016-12-21T10:34:27+00:00

The Set Features implementation for Keep Alive Timer was using the wrong
structure when retrieving the KATO value; it was treating the Set
Features command as a Property Set command.

The NVMe spec defines the Keep Alive Timer feature as having one input
in CDW11 (4 bytes at offset 44 in the command) whereas the code was
reading 8 bytes at offset 48.

Since the Linux NVMe over Fabrics host never sets this feature, this
code has presumably never been tested.

Signed-off-by: Daniel Verkamp 
Signed-off-by: Christoph Hellwig

Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block

2016-12-13T18:19:16+00:00

Pull block layer updates from Jens Axboe:
 "This is the main block pull request this series. Contrary to previous
  release, I've kept the core and driver changes in the same branch. We
  always ended up having dependencies between the two for obvious
  reasons, so makes more sense to keep them together. That said, I'll
  probably try and keep more topical branches going forward, especially
  for cycles that end up being as busy as this one.

  The major parts of this pull request is:

   - Improved support for O_DIRECT on block devices, with a small
     private implementation instead of using the pig that is
     fs/direct-io.c. From Christoph.

   - Request completion tracking in a scalable fashion. This is utilized
     by two components in this pull, the new hybrid polling and the
     writeback queue throttling code.

   - Improved support for polling with O_DIRECT, adding a hybrid mode
     that combines pure polling with an initial sleep. From me.

   - Support for automatic throttling of writeback queues on the block
     side. This uses feedback from the device completion latencies to
     scale the queue on the block side up or down. From me.

   - Support from SMR drives in the block layer and for SD. From Hannes
     and Shaun.

   - Multi-connection support for nbd. From Josef.

   - Cleanup of request and bio flags, so we have a clear split between
     which are bio (or rq) private, and which ones are shared. From
     Christoph.

   - A set of patches from Bart, that improve how we handle queue
     stopping and starting in blk-mq.

   - Support for WRITE_ZEROES from Chaitanya.

   - Lightnvm updates from Javier/Matias.

   - Supoort for FC for the nvme-over-fabrics code. From James Smart.

   - A bunch of fixes from a whole slew of people, too many to name
     here"

* 'for-4.10/block' of git://git.kernel.dk/linux-block: (182 commits)
  blk-stat: fix a few cases of missing batch flushing
  blk-flush: run the queue when inserting blk-mq flush
  elevator: make the rqhash helpers exported
  blk-mq: abstract out blk_mq_dispatch_rq_list() helper
  blk-mq: add blk_mq_start_stopped_hw_queue()
  block: improve handling of the magic discard payload
  blk-wbt: don't throttle discard or write zeroes
  nbd: use dev_err_ratelimited in io path
  nbd: reset the setup task for NBD_CLEAR_SOCK
  nvme-fabrics: Add FC LLDD loopback driver to test FC-NVME
  nvme-fabrics: Add target support for FC transport
  nvme-fabrics: Add host support for FC transport
  nvme-fabrics: Add FC transport LLDD api definitions
  nvme-fabrics: Add FC transport FC-NVME definitions
  nvme-fabrics: Add FC transport error codes to nvme.h
  Add type 0x28 NVME type code to scsi fc headers
  nvme-fabrics: patch target code in prep for FC transport support
  nvme-fabrics: set sqe.command_id in core not transports
  parser: add u64 number parser
  nvme-rdma: align to generic ib_event logging helper
  ...