[PATCH 0/5] [Yakkety] Enable NVMe APST

[Kai-Heng Feng]

BugLink: //bugs.launchpad.net/bugs/1664602

Impact:
NVME APST feature is not enabled, so the power consumption is higher.

Fix:
Enable NVME APST to converve energy.

Test:
Use 'nvme get-feature -f 0x0c -H /dev/nvme0' from nvme-cli to query the feature.

Before APST enabled:
get-feature:0xc (Autonomous Power State Transition), Current value:00000000
Autonomous Power State Transition Enable (APSTE): Disabled

After APST enabled:
get-feature:0xc (Autonomous Power State Transition), Current value:0x000001
Autonomous Power State Transition Enable (APSTE): Enabled

'bd4da3abaabf nvme: Add a quirk mechanism that uses identify_ctrl'
'c5552fde102f nvme: Enable autonomous power state transitions'
cannot be cleanly cherry-picked, it's contextually depends on another commit.
There's no functional dependency though, hence it's safe to backport the commit.

Andy Lutomirski (4):
  nvme/scsi: Remove power management support
  nvme: Pass pointers, not dma addresses, to nvme_get/set_features()
  nvme: Add a quirk mechanism that uses identify_ctrl
  nvme: Enable autonomous power state transitions

Christoph Hellwig (1):
  nvme: introduce struct nvme_request

 drivers/nvme/host/core.c          | 256 ++++++++++++++++++++++++++++++++++----
 drivers/nvme/host/fabrics.c       |  26 ++--
 drivers/nvme/host/lightnvm.c      |  31 ++---
 drivers/nvme/host/nvme.h          |  32 ++++-
 drivers/nvme/host/pci.c           |   4 +-
 drivers/nvme/host/rdma.c          |  11 +-
 drivers/nvme/host/scsi.c          |  80 +-----------
 drivers/nvme/target/core.c        |   8 +-
 drivers/nvme/target/fabrics-cmd.c |  14 +--
 drivers/nvme/target/loop.c        |  12 +-
 drivers/nvme/target/nvmet.h       |   2 +-
 include/linux/nvme.h              |  16 ++-
 12 files changed, 324 insertions(+), 168 deletions(-)

-- 
2.12.1