[iwl-next,v4,0/8] ice: support devlink subfunction

Message

Michal Swiatkowski April 17, 2024, 2:20 p.m. UTC

Hi,

This is second patchset split from subfunction patchset [1].
Important changes from previous version:
 * remove unnecessary checks for devlink port type
 * link correct devlink port to subfunction netdev

Follow up patchset with subfunction port representor will be the last
patchset for subfunction implementation in ice. It is a little
unpleasant to split it like that, because devlink port should be linked
with port representor netdev. In this patchset use devlink port without
linking it. It will be done correctly in the follow up when subfunction
port representor is available.

Currently ice driver does not allow creating more than one networking
device per physical function. The only way to have more hardware backed
netdev is to use SR-IOV.

Following patchset adds support for devlink port API. For each new
pcisf type port, driver allocates new VSI, configures all resources
needed, including dynamically MSIX vectors, program rules and registers
new netdev.

This series supports only one Tx/Rx queue pair per subfunction.

Example commands:
devlink port add pci/0000:31:00.1 flavour pcisf pfnum 1 sfnum 1000
devlink port function set pci/0000:31:00.1/1 hw_addr 00:00:00:00:03:14
devlink port function set pci/0000:31:00.1/1 state active
devlink port function del pci/0000:31:00.1/1

v3 --> v4: [4]
 * get rid of unnecessary checks
 * fix cosmetic issues (whitespaces, wording)
 * move unrelated chunks to separate patch
 * move implementing activation/deactivation to last patch

v2 --> v3: [3]
 * fix building issue between the patches; allocating devlink for
 subfunction need to include base subfunction header
 * fix kdoc issues

v1 --> v2: [2]
 * use correct parameters in ice_devlink_alloc() thanks to Mateusz

[1] https://lore.kernel.org/netdev/[e-mail]/
[2] https://lore.kernel.org/netdev/[e-mail]/
[3] https://lore.kernel.org/netdev/[e-mail]/
[4] https://lore.kernel.org/netdev/[e-mail]/

Michal Swiatkowski (1):
  ice: treat subfunction VSI the same as PF VSI

Piotr Raczynski (7):
  ice: add new VSI type for subfunctions
  ice: export ice ndo_ops functions
  ice: add basic devlink subfunctions support
  ice: allocate devlink for subfunction
  ice: base subfunction aux driver
  ice: implement netdev for subfunction
  ice: allow to activate and deactivate subfunction

 drivers/net/ethernet/intel/ice/Makefile       |   1 +
 .../net/ethernet/intel/ice/devlink/devlink.c  |  50 +-
 .../net/ethernet/intel/ice/devlink/devlink.h  |   1 +
 .../ethernet/intel/ice/devlink/devlink_port.c | 503 ++++++++++++++++++
 .../ethernet/intel/ice/devlink/devlink_port.h |  38 ++
 drivers/net/ethernet/intel/ice/ice.h          |  12 +
 drivers/net/ethernet/intel/ice/ice_base.c     |   5 +-
 drivers/net/ethernet/intel/ice/ice_dcb_lib.c  |   1 +
 drivers/net/ethernet/intel/ice/ice_lib.c      |  52 +-
 drivers/net/ethernet/intel/ice/ice_lib.h      |   3 +
 drivers/net/ethernet/intel/ice/ice_main.c     |  66 ++-
 drivers/net/ethernet/intel/ice/ice_sf_eth.c   | 327 ++++++++++++
 drivers/net/ethernet/intel/ice/ice_sf_eth.h   |  33 ++
 drivers/net/ethernet/intel/ice/ice_type.h     |   1 +
 drivers/net/ethernet/intel/ice/ice_xsk.c      |   2 +-
 15 files changed, 1048 insertions(+), 47 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/ice/ice_sf_eth.c
 create mode 100644 drivers/net/ethernet/intel/ice/ice_sf_eth.h