[RFC,0/2] xdp: introduce bulking for page_pool tx return path

Message

Lorenzo Bianconi Oct. 20, 2020, 9:33 a.m. UTC

xdp_return_frame/xdp_return_frame_napi and page_pool_put_page are usually
run inside the driver NAPI tx completion loop so it is possible batch them.
Introduce bulking capability in xdp tx return path (XDP_TX and XDP_REDIRECT).
Convert mvneta driver to xdp_return_frame_bulk APIs.

mvneta upstream code:
XDP_TX:		~296Kpps
XDP_REDIRECT:	~273Kpps

mvneta + xdp_return_frame_bulk APIs:
XDP_TX:		~303Kpps
XDP_REDIRECT:	~287Kpps

Lorenzo Bianconi (2):
  net: xdp: introduce bulking for xdp tx return path
  net: page_pool: add bulk support for ptr_ring

 drivers/net/ethernet/marvell/mvneta.c |  8 ++---
 include/net/page_pool.h               | 21 ++++++++++++
 include/net/xdp.h                     | 11 ++++++
 net/core/page_pool.c                  | 37 ++++++++++++++++++++
 net/core/xdp.c                        | 49 +++++++++++++++++++++++++++
 5 files changed, 122 insertions(+), 4 deletions(-)