[0/4] igb: Add support for AF_XDP zero-copy

Message

Sriram Yagnaraman July 4, 2023, 10 a.m. UTC

Disclaimer: My first patches to Intel drivers, implemented AF_XDP
zero-copy feature which seemed to be missing for igb. Not sure if it was
a conscious choice to not spend time implementing this for older
devices, nevertheless I send them to the list for review.

The first couple of patches adds helper funcctions to prepare for AF_XDP
zero-copy support which comes in the last couple of patches, one each
for Rx and TX paths.

Sriram Yagnaraman (4):
  igb: prepare for AF_XDP zero-copy support
  igb: Introduce txrx ring enable/disable functions
  igb: add AF_XDP zero-copy Rx support
  igb: add AF_XDP zero-copy Tx support

 drivers/net/ethernet/intel/igb/Makefile   |   2 +-
 drivers/net/ethernet/intel/igb/igb.h      |  52 ++-
 drivers/net/ethernet/intel/igb/igb_main.c | 178 +++++++--
 drivers/net/ethernet/intel/igb/igb_xsk.c  | 434 ++++++++++++++++++++++
 4 files changed, 633 insertions(+), 33 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/igb/igb_xsk.c