[PATCH net-next v3 00/15] gve: AdminQ mode related refactors

[Harshitha Ramamurthy <hramamurthy@google.com>]

This series is preparing the driver for the addition of a new control
plane mode(MailboxQ) by commonizing and reusing as much code as possible.
MailboxQ is a new control plane infrastructure which uses mailbox queues.
This is a new control plane to communicate with the device when the driver
is running on bare-metal instances as well as newer versions of the device.

This series contains 2 main changes to the gve driver's existing control
plane(AdminQ):
1) refactor some initialization/teardown path methods to make it work for
   both control planes.
2) add gve_ctrl_ops structure to the driver for various control plane
   operations

The refactors are mainly around the init, reset and recover paths so that
functionalities could be moved into the control ops like 'set_num_queues',
'set_num_ntfy_blks' etc.

This patch series only sets the control ops for AdminQ mode. This is
intended as a preparation for adding MailboxQ mode in upcoming series
which will add the new control plane infrastructure and then introduce
the corresponding control ops for MailboxQ mode.

The entire list of future patches can be found here for reference:
https://github.com/hramamurthy12/linux/commits/gve-mailbox-queues/

Changes in v3:
- Fix driver compatibility verification in the reset and recovery paths (patches 2, 8).
- Mark gve_adminq_get_device_properties() with __maybe_unused ahead of its usage (patch 7).
- Refine error handling and resource cleanup in reset, probe, and queue creation paths (patches 8, 9, 11, 14).
- Keep IRQ doorbell allocation/release in control plane resource helpers (patch 12).
- Minor fixes: fix TOCTOU issue for link speed, correct kdoc comments, and remove redundant teardown calls (patches 4, 11, 15). 
- v2: https://lore.kernel.org/netdev/20260602235900.3050782-1-hramamurthy@google.com/

Changes in v2:
- Rebased against latest net-next to resolve apply failure for patch 5
- Fixed a few typos in commit messages of patch 9 and 14
- Fixed a kdoc warning in patch 9
- v1: https://lore.kernel.org/netdev/20260601175437.3767283-1-hramamurthy@google.com/

Harshitha Ramamurthy (9):
  gve: don't pass in unused parameter to gve_adminq_free
  gve: refactor initialization with helper functions
  gve: add a few helper functions to set device properties
  gve: add struct gve_device_info to hold device properties
  gve: introduce control plane operations structure
  gve: introduce ctrl ops to set vectors and Qs
  gve: introduce gve_adminq_get_device_properties()
  gve: refactor gve_init_priv for reset path
  gve: add ctrl ops to for queue operations

Joshua Washington (6):
  gve: simplify reset logic
  gve: add gve_ctrl_ops for gve initialization/teardown sequences
  gve: split up notify block allocation and setup paths
  gve: introduce new methods to handle IRQ doorbells
  gve: setup and teardown management interrupts
  gve: add link status/speed ctrl ops

 drivers/net/ethernet/google/gve/gve.h         |  88 +-
 drivers/net/ethernet/google/gve/gve_adminq.c  | 432 ++++++--
 drivers/net/ethernet/google/gve/gve_adminq.h  |  25 +-
 drivers/net/ethernet/google/gve/gve_dqo.h     |   2 +-
 drivers/net/ethernet/google/gve/gve_ethtool.c |   5 +-
 .../net/ethernet/google/gve/gve_flow_rule.c   |  15 +-
 drivers/net/ethernet/google/gve/gve_main.c    | 936 +++++++++---------
 7 files changed, 947 insertions(+), 556 deletions(-)

-- 
2.55.0.571.g244d577d93-goog