[net-next,v8,0/6] add sriov support for wangxun NICs

Message

[e-mail] March 9, 2025, 3:42 p.m. UTC

Add sriov_configure for ngbe and txgbe drivers.
Reallocate queue and irq resources when sriov is enabled.
Add wx_msg_task in interrupts handler, which is used to process the
configuration sent by vfs.
Add ping_vf for wx_pf to tell vfs about pf link change.
Do not add uAPIs for in these patches, since the legacy APIs ndo_set_vf_*
callbacks are considered frozen. And new apis are being replanned.

v8:
- Request a separate processing function when ngbe num_vfs is equal to 7.
- Add the comment explains why pf needs to reuse interrupt 0 when the ngbe
  num_vfs equals 7.
- Remove some useless api version checks because vf will not send commands
  higher than its own api version. 
- Fix some code syntax and logic errors.
v7: https://lore.kernel.org/netdev/[e-mail]/
- Use pci_sriov_set_totalvfs instead of checking the limit manually.
v6: https://lore.kernel.org/netdev/[e-mail]/
- Remove devlink allocation and PF/VF devlink port creation in these patches.
v5: https://lore.kernel.org/netdev/[e-mail]/
- Add devlink allocation which will be used to add uAPI.
- Remove unused EXPORT_SYMBOL.
- Unify some functions return styles in patch 1/4.
- Make the code line less than 80 columns.
v4: https://lore.kernel.org/netdev/[e-mail]/
- Move wx_ping_vf to patch 6.
- Modify return section format in Kernel docs.
v3: https://lore.kernel.org/netdev/[e-mail]/
- Do not accept any new implementations of the old SR-IOV API.
- So remove ndo_vf_xxx in these patches. Switch mode ops will be added
- in vf driver which will be submitted later.
v2: https://lore.kernel.org/netdev/[e-mail]/
- Fix some used uninitialised.
- Use poll + yield with delay instead of busy poll of 10 times in mbx_lock obtain.
- Split msg_task and flow into separate patches.
v1: https://lore.kernel.org/netdev/[e-mail]/

Mengyuan Lou (6):
  net: libwx: Add mailbox api for wangxun pf drivers
  net: libwx: Add sriov api for wangxun nics
  net: libwx: Redesign flow when sriov is enabled
  net: libwx: Add msg task func
  net: ngbe: add sriov function support
  net: txgbe: add sriov function support

 drivers/net/ethernet/wangxun/libwx/Makefile   |   2 +-
 drivers/net/ethernet/wangxun/libwx/wx_hw.c    | 300 +++++-
 drivers/net/ethernet/wangxun/libwx/wx_hw.h    |   4 +
 drivers/net/ethernet/wangxun/libwx/wx_lib.c   | 128 ++-
 drivers/net/ethernet/wangxun/libwx/wx_mbx.c   | 176 ++++
 drivers/net/ethernet/wangxun/libwx/wx_mbx.h   |  77 ++
 drivers/net/ethernet/wangxun/libwx/wx_sriov.c | 910 ++++++++++++++++++
 drivers/net/ethernet/wangxun/libwx/wx_sriov.h |  14 +
 drivers/net/ethernet/wangxun/libwx/wx_type.h  |  93 +-
 drivers/net/ethernet/wangxun/ngbe/ngbe_main.c |  93 +-
 drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c |   5 +
 drivers/net/ethernet/wangxun/ngbe/ngbe_type.h |   3 +
 .../net/ethernet/wangxun/txgbe/txgbe_irq.c    |  21 +-
 .../net/ethernet/wangxun/txgbe/txgbe_main.c   |  27 +
 .../net/ethernet/wangxun/txgbe/txgbe_phy.c    |   6 +
 .../net/ethernet/wangxun/txgbe/txgbe_type.h   |   7 +-
 16 files changed, 1832 insertions(+), 34 deletions(-)
 create mode 100644 drivers/net/ethernet/wangxun/libwx/wx_mbx.c
 create mode 100644 drivers/net/ethernet/wangxun/libwx/wx_mbx.h
 create mode 100644 drivers/net/ethernet/wangxun/libwx/wx_sriov.c
 create mode 100644 drivers/net/ethernet/wangxun/libwx/wx_sriov.h