linux-stable/drivers/nvme/host/Kconfig
Linus Torvalds 440462198d for-5.14/drivers-2021-06-29
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Merge tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "Pretty calm round, mostly just NVMe and a bit of MD:

   - NVMe updates (via Christoph)
        - improve the APST configuration algorithm (Alexey Bogoslavsky)
        - look for StorageD3Enable on companion ACPI device
          (Mario Limonciello)
        - allow selecting the network interface for TCP connections
          (Martin Belanger)
        - misc cleanups (Amit Engel, Chaitanya Kulkarni, Colin Ian King,
          Christoph)
        - move the ACPI StorageD3 code to drivers/acpi/ and add quirks
          for certain AMD CPUs (Mario Limonciello)
        - zoned device support for nvmet (Chaitanya Kulkarni)
        - fix the rules for changing the serial number in nvmet
          (Noam Gottlieb)
        - various small fixes and cleanups (Dan Carpenter, JK Kim,
          Chaitanya Kulkarni, Hannes Reinecke, Wesley Sheng, Geert
          Uytterhoeven, Daniel Wagner)

   - MD updates (Via Song)
        - iostats rewrite (Guoqing Jiang)
        - raid5 lock contention optimization (Gal Ofri)

   - Fall through warning fix (Gustavo)

   - Misc fixes (Gustavo, Jiapeng)"

* tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block: (78 commits)
  nvmet: use NVMET_MAX_NAMESPACES to set nn value
  loop: Fix missing discard support when using LOOP_CONFIGURE
  nvme.h: add missing nvme_lba_range_type endianness annotations
  nvme: remove zeroout memset call for struct
  nvme-pci: remove zeroout memset call for struct
  nvmet: remove zeroout memset call for struct
  nvmet: add ZBD over ZNS backend support
  nvmet: add Command Set Identifier support
  nvmet: add nvmet_req_bio put helper for backends
  nvmet: add req cns error complete helper
  block: export blk_next_bio()
  nvmet: remove local variable
  nvmet: use nvme status value directly
  nvmet: use u32 type for the local variable nsid
  nvmet: use u32 for nvmet_subsys max_nsid
  nvmet: use req->cmd directly in file-ns fast path
  nvmet: use req->cmd directly in bdev-ns fast path
  nvmet: make ver stable once connection established
  nvmet: allow mn change if subsys not discovered
  nvmet: make sn stable once connection was established
  ...
2021-06-30 12:21:16 -07:00

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# SPDX-License-Identifier: GPL-2.0-only
config NVME_CORE
tristate
select BLK_DEV_INTEGRITY_T10 if BLK_DEV_INTEGRITY
config BLK_DEV_NVME
tristate "NVM Express block device"
depends on PCI && BLOCK
select NVME_CORE
help
The NVM Express driver is for solid state drives directly
connected to the PCI or PCI Express bus. If you know you
don't have one of these, it is safe to answer N.
To compile this driver as a module, choose M here: the
module will be called nvme.
config NVME_MULTIPATH
bool "NVMe multipath support"
depends on NVME_CORE
help
This option enables support for multipath access to NVMe
subsystems. If this option is enabled only a single
/dev/nvmeXnY device will show up for each NVMe namespace,
even if it is accessible through multiple controllers.
config NVME_HWMON
bool "NVMe hardware monitoring"
depends on (NVME_CORE=y && HWMON=y) || (NVME_CORE=m && HWMON)
help
This provides support for NVMe hardware monitoring. If enabled,
a hardware monitoring device will be created for each NVMe drive
in the system.
config NVME_FABRICS
tristate
config NVME_RDMA
tristate "NVM Express over Fabrics RDMA host driver"
depends on INFINIBAND && INFINIBAND_ADDR_TRANS && BLOCK
select NVME_CORE
select NVME_FABRICS
select SG_POOL
help
This provides support for the NVMe over Fabrics protocol using
the RDMA (Infiniband, RoCE, iWarp) transport. This allows you
to use remote block devices exported using the NVMe protocol set.
To configure a NVMe over Fabrics controller use the nvme-cli tool
from https://github.com/linux-nvme/nvme-cli.
If unsure, say N.
config NVME_FC
tristate "NVM Express over Fabrics FC host driver"
depends on BLOCK
depends on HAS_DMA
select NVME_CORE
select NVME_FABRICS
select SG_POOL
help
This provides support for the NVMe over Fabrics protocol using
the FC transport. This allows you to use remote block devices
exported using the NVMe protocol set.
To configure a NVMe over Fabrics controller use the nvme-cli tool
from https://github.com/linux-nvme/nvme-cli.
If unsure, say N.
config NVME_TCP
tristate "NVM Express over Fabrics TCP host driver"
depends on INET
depends on BLOCK
select NVME_CORE
select NVME_FABRICS
select CRYPTO
select CRYPTO_CRC32C
help
This provides support for the NVMe over Fabrics protocol using
the TCP transport. This allows you to use remote block devices
exported using the NVMe protocol set.
To configure a NVMe over Fabrics controller use the nvme-cli tool
from https://github.com/linux-nvme/nvme-cli.
If unsure, say N.