talos-obmc-linux/include/linux/nvme.h, branch dev-4.13-fsi

nvme: fix the definition of the doorbell buffer config support bit

2017-08-30T12:46:32+00:00

NVMe 1.3 specification defines the Optional Admin Command Support feature flags, bit 8 set to '1' then the controller supports the Doorbell Buffer Config command. Bit 7 is used for Virtualization Mangement command. Signed-off-by: Changpeng Liu Reviewed-by: Sagi Grimberg Reviewed-by: Max Gurtovoy Reviewed-by: Johannes Thumshirn Signed-off-by: Christoph Hellwig Fixes: f9f38e33 ("nvme: improve performance for virtual NVMe devices") Cc: stable@vger.kernel.org

nvme: fabrics commands should use the fctype field for data direction

2017-07-25T15:58:32+00:00

Fabrics commands with opcode 0x7F use the fctype field to indicate data direction. Signed-off-by: Jon Derrick Reviewed-by: Sagi Grimberg Signed-off-by: Christoph Hellwig Fixes: eb793e2c ("nvme.h: add NVMe over Fabrics definitions")

nvme: fix byte swapping in the streams code

2017-07-20T14:41:56+00:00

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

nvme: use a single NVME_AQ_DEPTH and relax it to 32

2017-06-28T14:14:13+00:00

No need to differentiate fabrics from pci/loop, also lower it to 32 as we don't really need 256 inflight admin commands. Signed-off-by: Sagi Grimberg Reviewed-by: Martin K. Petersen Reviewed-by: Christoph Hellwig Reviewed-by: Max Gurtovoy Signed-off-by: Keith Busch Signed-off-by: Jens Axboe

nvme: add support for streams and directives

2017-06-27T18:05:56+00:00

This adds support for Directives in NVMe, particular for the Streams directive. Support for Directives is a new feature in NVMe 1.3. It allows a user to pass in information about where to store the data, so that it the device can do so most effiently. If an application is managing and writing data with different life times, mixing differently retentioned data onto the same locations on flash can cause write amplification to grow. This, in turn, will reduce performance and life time of the device. Reviewed-by: Martin K. Petersen Signed-off-by: Jens Axboe

nvme: implement NS Optimal IO Boundary from 1.3 Spec

2017-06-16T06:25:54+00:00

The NVMe 1.3 spec introduces Namespace Optimal IO Boundaries (NOIOB), which standardizes the stripe mechanism we currently have quirks for. This patch implements the necessary logic to handle this new feature. Signed-off-by: Scott Bauer Signed-off-by: Christoph Hellwig

nvme: add fields into identify controller data structure

2017-06-15T12:30:26+00:00

Add the new to NVMe 1.3 fields EDSTT, DSTO, FWUG, HCTMA, MNTMT, MXTMT, and SANICAP into the idenfity controller data structure. Signed-off-by: Guan Junxiong Reviewed-by: Sagi Grimberg Signed-off-by: Christoph Hellwig

nvmet: allow overriding the NVMe VS via configfs

2017-06-15T12:30:23+00:00

Allow overriding the announced NVMe Version of a via configfs. This is particularly helpful when debugging new features for the host or target side without bumping the hard coded version (as the target might not be fully compliant to the announced version yet). Signed-off-by: Johannes Thumshirn Reviewed-by: Hannes Reinecke Reviewed-by: Guan Junxiong Signed-off-by: Christoph Hellwig

nvme: introduce NVMe Namespace Identification Descriptor structures

2017-06-15T12:30:16+00:00

Signed-off-by: Johannes Thumshirn Reviewed-by: Max Gurtovoy Reviewed-by: Sagi Grimberg Reviewed-by: Hannes Reinecke Signed-off-by: Christoph Hellwig

nvmet: use NVME_IDENTIFY_DATA_SIZE

2017-06-15T12:30:15+00:00

Use NVME_IDENTIFY_DATA_SIZE define instead of hard coding the magic 4096 value. Signed-off-by: Johannes Thumshirn Reviewed-by: Max Gurtovoy Reviewed-by: Sagi Grimberg Reviewed-by: Hannes Reinecke [hch: converted three more users] Signed-off-by: Christoph Hellwig