linux-toradex.git/include/uapi/linux/nvme.h, branch v3.19-rc5

NVMe: Updates for 1.1 spec

2014-11-04T20:17:10+00:00

Updating commands and structures for NVMe 1.1 updates, mostly for nvme
reservations. There are no additional in-kernel uses, but this is for
the uapi.

While doing this, I noticed that the software progress features was
using the wrong value, so updating that value as well.

Signed-off-by: Keith Busch 
Signed-off-by: Matthew Wilcox 
Signed-off-by: Jens Axboe

NVMe: Passthrough IOCTL for IO commands

2014-11-04T20:17:09+00:00

The NVME_IOCTL_SUBMIT_IO only works for IO commands with block data
transfers and isn't usable for other NVMe commands like flush,
data set management, or any sort of vendor unique command. The
NVME_IOCTL_ADMIN_CMD, however, can easily be modified to accept arbitrary
IO commands in addition to arbitrary admin commands without breaking
backward compatibility. This patch just adds a new IOCTL to distinguish
if the driver should submit the command on an IO or Admin queue.

Signed-off-by: Keith Busch 
Signed-off-by: Matthew Wilcox 
Signed-off-by: Jens Axboe

NVMe: Update list of status codes

2014-11-04T20:17:07+00:00

Taken from the draft NVMe 1.1b specification.

Signed-off-by: Matthew Wilcox 
Signed-off-by: Jens Axboe

NVMe: Define Log Page constants

2014-06-13T14:53:49+00:00

Taken from the 1.1a version of the spec

Signed-off-by: Matthew Wilcox

NVMe: Update data structures for NVMe 1.2

2014-06-03T15:29:31+00:00

Include changes from the current set of ratified Technical Proposals
for NVMe 1.2.

Signed-off-by: Matthew Wilcox

NVMe: Update namespace and controller identify structures to the 1.1a spec

2014-05-09T22:50:53+00:00

Controller: add CNTLID, AVSCC, APSTA, NVSCC, ACWU, SGLS fields.

Namespace: add NMIC, RESCAP, EUI64 fields. EUI64 is specifically
interesting, since it can be used to construct an UEFI NVMe device
path for a boot entry.

As per NVM Express 1.1a spec:
http://www.nvmexpress.org/wp-content/uploads/NVM-Express-1_1a.pdf

Signed-off-by: Dimitri John Ledkov 
Signed-off-by: Matthew Wilcox

NVMe: Configure support for block flush

2014-05-05T14:53:53+00:00

This configures an nvme request_queue as flush capable if the device
has a volatile write cache present.

Signed-off-by: Keith Busch 
Signed-off-by: Matthew Wilcox

NVMe: Update copyright headers

2014-05-05T14:41:25+00:00

Make the copyright dates accurate and remove the final paragraph that
includes the address of the FSF.

Signed-off-by: Matthew Wilcox

NVMe: Retry failed commands with non-fatal errors

2014-04-10T21:11:59+00:00

For commands returned with failed status, queue these for resubmission
and continue retrying them until success or for a limited amount of
time. The final timeout was arbitrarily chosen so requests can't be
retried indefinitely.

Since these are requeued on the nvmeq that submitted the command, the
callbacks have to take an nvmeq instead of an nvme_dev as a parameter
so that we can use the locked queue to append the iod to retry later.

The nvme_iod conviently can be used to track how long we've been trying
to successfully complete an iod request. The nvme_iod also provides the
nvme prp dma mappings, so I had to move a few things around so we can
keep those mappings.

Signed-off-by: Keith Busch 
[fixed checkpatch issue with long line]
Signed-off-by: Matthew Wilcox

NVMe: Abort timed out commands

2014-01-28T00:27:53+00:00

Send nvme abort command to io requests that have timed out on an
initialized device. If the command is not returned after another timeout,
schedule the controller for reset.

Signed-off-by: Keith Busch 
[fix endianness issues]
Signed-off-by: Matthew Wilcox