From: Matteo Croce <mcr...@linux.microsoft.com> Date: Mon, 22 Mar 2021 18:02:55 +0100
> From: Matteo Croce <mcr...@microsoft.com> > > This series enables recycling of the buffers allocated with the page_pool API. > The first two patches are just prerequisite to save space in a struct and > avoid recycling pages allocated with other API. > Patch 2 was based on a previous idea from Jonathan Lemon. > > The third one is the real recycling, 4 fixes the compilation of > __skb_frag_unref > users, and 5,6 enable the recycling on two drivers. > > In the last two patches I reported the improvement I have with the series. > > The recycling as is can't be used with drivers like mlx5 which do page split, > but this is documented in a comment. > In the future, a refcount can be used so to support mlx5 with no changes. > > Ilias Apalodimas (2): > page_pool: DMA handling and allow to recycles frames via SKB > net: change users of __skb_frag_unref() and add an extra argument > > Jesper Dangaard Brouer (1): > xdp: reduce size of struct xdp_mem_info > > Matteo Croce (3): > mm: add a signature in struct page > mvpp2: recycle buffers > mvneta: recycle buffers > > .../chelsio/inline_crypto/ch_ktls/chcr_ktls.c | 2 +- > drivers/net/ethernet/marvell/mvneta.c | 4 +- > .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 17 +++---- > drivers/net/ethernet/marvell/sky2.c | 2 +- > drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 +- > include/linux/mm_types.h | 1 + > include/linux/skbuff.h | 33 +++++++++++-- > include/net/page_pool.h | 15 ++++++ > include/net/xdp.h | 5 +- > net/core/page_pool.c | 47 +++++++++++++++++++ > net/core/skbuff.c | 20 +++++++- > net/core/xdp.c | 14 ++++-- > net/tls/tls_device.c | 2 +- > 13 files changed, 138 insertions(+), 26 deletions(-) Just for the reference, I've performed some tests on 1G SoC NIC with this patchset on, here's direct link: [0] > -- > 2.30.2 [0] https://lore.kernel.org/netdev/20210323153550.130385-1-aloba...@pm.me Thanks, Al
