[PATCH rfc v2 00/10] nvme-cli: nvmf auto-connect scripts

[jsmart2021@gmail.com (James Smart)]

This posting is a combination of the nvme-fc auto-connect scripts
posted by Hannes, the RFC from Sagi to allow auto-connect for
persistent discovery controllers that send AENs, and the RFC that
I posted addressing comments. It does not contain the code that
handles the persistent discovery controller AEN and generates the
event.

The auto-connect scripts are now commonized with the exception
of the nvme-fc boot connections service.  It's expected that both
the persistent discovery controllers and nvme-fc can post the same
udev event. Whenever the discovery aen generates an event, the
new --device=<name> argument will be used to identify the persistent
discovery controller. When --device is used, the other connect
attributes will be specified, set to the values of the discovery
controller, and will be used by the cli to validate the device is
who it should be or a new discovery controller will be created.
When nvme-fc generates it's events, it will specify --device=none
and specify the discovery controller addressing arguments.  If a
persistent discovery controller exists on nvme-fc, will do nothing
special and AEN's from it will follow the --device=<name> syntax.

The udev event handler supports both the new event to be used
by discovery controllers as well as the existing nvme-fc transport
event. The nvme-fc transport will be migrated to issue the new
event syntax. The udev script will continue to support the older
style nvme-fc event info in case the cli is running against an
older kernel.

v2:
 Addressed a couple of comments from Minwoo Im
 Break device arg extension into multiple patches
 Slight tweaks to parse routine
 Add reviewed-by's

James Smart (8):
  nvme-cli: ignore arguments that pass in "none"
  nvme-cli: allow discover to address discovery controller by persistent
    name
  nvme-cli: Refactor to create a get_nvme_ctrl_info routine
  nvme-cli: extend ctrl_list_item for connect attributes
  nvme-cli: Add routine to compare ctrl_list_item to connect args
  nvme-cli: Add routine to search for controller with specific
    attributes
  nvme-cli: Expand --device argument processing
  nvme-cli: nvmf auto-connect scripts

Sagi Grimberg (2):
  nvme-cli: support persistent connections to a discovery controller
  nvme-cli: add --quiet option

 Makefile                                         |  16 +-
 fabrics.c                                        | 117 +++++++++---
 fabrics.h                                        |   2 +
 nvme.c                                           | 228 +++++++++++++++++++----
 nvme.h                                           |  22 +++
 nvme.spec.in                                     |   9 +
 nvmf-autoconnect/70-nvmf-autoconnect.conf        |   1 +
 nvmf-autoconnect/70-nvmf-autoconnect.rules       |  18 ++
 nvmf-autoconnect/nvmefc-boot-connections.service |   9 +
 nvmf-autoconnect/nvmf-connect.target             |   2 +
 nvmf-autoconnect/nvmf-connect at .service           |  14 ++
 11 files changed, 381 insertions(+), 57 deletions(-)
 create mode 100644 nvmf-autoconnect/70-nvmf-autoconnect.conf
 create mode 100644 nvmf-autoconnect/70-nvmf-autoconnect.rules
 create mode 100644 nvmf-autoconnect/nvmefc-boot-connections.service
 create mode 100644 nvmf-autoconnect/nvmf-connect.target
 create mode 100644 nvmf-autoconnect/nvmf-connect at .service

-- 
2.13.7