[net-next,v6,0/6] Add af_xdp support for cn10k

Message

Suman Ghosh Feb. 12, 2025, 7:24 p.m. UTC

This patchset includes changes to support AF_XDP for cn10k chipsets. Both
non-zero copy and zero copy will be supported after these changes. Also,
the RSS will be reconfigured once a particular receive queue is
added/removed to/from AF_XDP support.

Patch #1: octeontx2-pf: use xdp_return_frame() to free xdp buffers

Patch #2: octeontx2-pf: Add AF_XDP non-zero copy support

Patch #3: octeontx2-pf: AF_XDP zero copy receive support

Patch #4: octeontx2-pf: Reconfigure RSS table after enabling AF_XDP
zerocopy on rx queue

Patch #5: octeontx2-pf: Prepare for AF_XDP transmit

Patch #6: octeontx2-pf: AF_XDP zero copy transmit support

Geetha sowjanya (1):
  octeontx2-pf: use xdp_return_frame() to free xdp buffers

Hariprasad Kelam (2):
  octeontx2-pf: Prepare for AF_XDP
  octeontx2-pf: AF_XDP zero copy transmit support

Suman Ghosh (3):
  octeontx2-pf: Add AF_XDP non-zero copy support
  octeontx2-pf: AF_XDP zero copy receive support
  octeontx2-pf: Reconfigure RSS table after enabling AF_XDP zerocopy on
    rx queue

v6 changes:
- Updated patch #1,#3,#5 and #6 to address review comments
  from Simon for some code re-arrangement

v5 changes:
- Updated patch #1 to use xdp_return_frame 
- Updated patch #6 to use xdp_return_frame

v4 changes:
- Addressed minor comments from Paolo regarding adding fixes tag in patch#2
  and removed one unnecessary NULL check from patch#3

v3 changes:
- Rearrenged patch ordering to fix individual patch compilation issue
- Fixed un-initialized variable declaration and reverse x-mas tree issue
  pointed by Simon

v2 changes:
- Addressed minor review comments from Simon regrading smatch warnings

 .../ethernet/marvell/octeontx2/nic/Makefile   |   2 +-
 .../ethernet/marvell/octeontx2/nic/cn10k.c    |   7 +-
 .../marvell/octeontx2/nic/otx2_common.c       | 122 +++++++---
 .../marvell/octeontx2/nic/otx2_common.h       |  17 +-
 .../marvell/octeontx2/nic/otx2_ethtool.c      |   6 +-
 .../ethernet/marvell/octeontx2/nic/otx2_pf.c  |  32 +--
 .../marvell/octeontx2/nic/otx2_txrx.c         | 188 +++++++++++----
 .../marvell/octeontx2/nic/otx2_txrx.h         |   9 +
 .../ethernet/marvell/octeontx2/nic/otx2_vf.c  |  12 +-
 .../ethernet/marvell/octeontx2/nic/otx2_xsk.c | 225 ++++++++++++++++++
 .../ethernet/marvell/octeontx2/nic/otx2_xsk.h |  24 ++
 .../ethernet/marvell/octeontx2/nic/qos_sq.c   |   2 +-
 12 files changed, 554 insertions(+), 92 deletions(-)
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c
 create mode 100644 drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.h