linux.git/drivers/nvme/host, branch v4.11

nvme: Quirk APST off on "THNSF5256GPUK TOSHIBA"

2017-04-20T20:42:10+00:00

There's a report that it malfunctions with APST on.

See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184

Cc: Kai-Heng Feng 
Signed-off-by: Andy Lutomirski 
Signed-off-by: Jens Axboe

nvme: Adjust the Samsung APST quirk

2017-04-20T20:42:09+00:00

I got a couple more reports: the Samsung APST issues appears to
affect multiple 950-series devices in Dell XPS 15 9550 and Precision
5510 laptops.  Change the quirk: rather than blacklisting the
firmware on the first problematic SSD that was reported, disable
APST on all 144d:a802 devices if they're installed in the two
affected Dell models.  While we're at it, disable only the deepest
sleep state instead of all of them -- the reporters say that this is
sufficient to fix the problem.

(I have a device that appears to be entirely identical to one of the
affected devices, but I have a different Dell laptop, so it's not
the case that all Samsung devices with firmware BXW75D0Q are broken
under all circumstances.)

Samsung engineers have an affected system, and hopefully they'll
give us a better workaround some time soon.  In the mean time, this
should minimize regressions.

See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184

Cc: Kai-Heng Feng 
Signed-off-by: Andy Lutomirski 
Signed-off-by: Jens Axboe

nvme-fc: Fix sqsize wrong assignment based on ctrl MQES capability

2017-04-09T19:58:11+00:00

both our sqsize and the controller MQES cap are a 0 based value,
so making it 1 based is wrong.

Reported-by: Trapp, Darren 
Reported-by: Daniel Verkamp 
Signed-off-by: Sagi Grimberg 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvme-rdma: Fix sqsize wrong assignment based on ctrl MQES capability

2017-04-09T19:58:09+00:00

both our sqsize and the controller MQES cap are a 0 based value,
so making it 1 based is wrong.

Reported-by: Trapp, Darren 
Reported-by: Daniel Verkamp 
Signed-off-by: Sagi Grimberg 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

nvme: add missing byte swap in nvme_setup_discard

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

Fixes: b35ba01e ("nvme: support ranged discard requests")
Signed-off-by: Christoph Hellwig 
Signed-off-by: Sagi Grimberg

nvme-rdma: handle cpu unplug when re-establishing the controller

2017-03-21T16:38:41+00:00

If a cpu unplug event has occured, we need to take the minimum
of the provided nr_io_queues and the number of online cpus,
otherwise we won't be able to connect them as blk-mq mapping
won't dispatch to those queues.

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

nvme: Complete all stuck requests

2017-03-02T15:56:59+00:00

If the nvme driver is shutting down its controller, the drievr will not
start the queues up again, preventing blk-mq's hot CPU notifier from
making forward progress.

To fix that, this patch starts a request_queue freeze when the driver
resets a controller so no new requests may enter. The driver will wait
for frozen after IO queues are restarted to ensure the queue reference
can be reinitialized when nvme requests to unfreeze the queues.

If the driver is doing a safe shutdown, the driver will wait for the
controller to successfully complete all inflight requests so that we
don't unnecessarily fail them. Once the controller has been disabled,
the queues will be restarted to force remaining entered requests to end
in failure so that blk-mq's hot cpu notifier may progress.

Signed-off-by: Keith Busch 
Reviewed-by: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvme: allocate nvme_queue in correct node

2017-03-02T15:56:04+00:00

nvme_queue is per-cpu queue (mostly). Allocating it in node where blk-mq
will use it.

Signed-off-by: Shaohua Li 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

scripts/spelling.txt: add "embeded" pattern and fix typo instances

2017-02-28T02:43:47+00:00

Fix typos and add the following to the scripts/spelling.txt:

  embeded||embedded

Link: http://lkml.kernel.org/r/1481573103-11329-12-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

2017-02-25T21:45:43+00:00

Pull rdma DMA mapping updates from Doug Ledford:
 "Drop IB DMA mapping code and use core DMA code instead.

  Bart Van Assche noted that the ib DMA mapping code was significantly
  similar enough to the core DMA mapping code that with a few changes it
  was possible to remove the IB DMA mapping code entirely and switch the
  RDMA stack to use the core DMA mapping code.

  This resulted in a nice set of cleanups, but touched the entire tree
  and has been kept separate for that reason."

* tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
  IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
  IB/core: Remove ib_device.dma_device
  nvme-rdma: Switch from dma_device to dev.parent
  RDS: net: Switch from dma_device to dev.parent
  IB/srpt: Modify a debug statement
  IB/srp: Switch from dma_device to dev.parent
  IB/iser: Switch from dma_device to dev.parent
  IB/IPoIB: Switch from dma_device to dev.parent
  IB/rxe: Switch from dma_device to dev.parent
  IB/vmw_pvrdma: Switch from dma_device to dev.parent
  IB/usnic: Switch from dma_device to dev.parent
  IB/qib: Switch from dma_device to dev.parent
  IB/qedr: Switch from dma_device to dev.parent
  IB/ocrdma: Switch from dma_device to dev.parent
  IB/nes: Remove a superfluous assignment statement
  IB/mthca: Switch from dma_device to dev.parent
  IB/mlx5: Switch from dma_device to dev.parent
  IB/mlx4: Switch from dma_device to dev.parent
  IB/i40iw: Remove a superfluous assignment statement
  IB/hns: Switch from dma_device to dev.parent
  ...