On 4/8/2024 2:38 AM, Julien Panis wrote: > This patch adds XDP support to TI AM65 CPSW Ethernet driver. > > The following features are implemented: NETDEV_XDP_ACT_BASIC, > NETDEV_XDP_ACT_REDIRECT, and NETDEV_XDP_ACT_NDO_XMIT. > > Zero-copy and non-linear XDP buffer supports are NOT implemented. > > Besides, the page pool memory model is used to get better performance. > > Signed-off-by: Julien Panis <jpanis@xxxxxxxxxxxx> > --- Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx> > Changes in v8: > - Fix some warnings reported by patchwork. > - Link to v7: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v7-0-c3857c82dadb@xxxxxxxxxxxx > > Changes in v7: > - Move xdp_do_flush() function call in am65_cpsw_nuss_rx_poll(). > - Link to v6: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v6-0-212eeff5bd5f@xxxxxxxxxxxx > > Changes in v6: > - In k3_cppi_*() functions, use const qualifier when the content of > pool is not modified. > - Add allow_direct bool parameter to am65_cpsw_alloc_skb() function > for direct use by page_pool_put_full_page(). > - Link to v5: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v5-0-bc1739170bc6@xxxxxxxxxxxx > > Changes in v5: > - In k3_cppi_desc_pool_destroy(), free memory allocated for desc_infos. > - Link to v4: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v4-0-2e45e5dec048@xxxxxxxxxxxx > > Changes in v4: > - Add skb_mark_for_recycle() in am65_cpsw_nuss_rx_packets() function. > - Specify napi page pool parameter in am65_cpsw_create_xdp_rxqs() function. > - Add benchmark numbers (with VS without page pool) in the commit description. > - Add xdp_do_flush() in am65_cpsw_run_xdp() function for XDP_REDIRECT case. > - Link to v3: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v3-0-5d944a9d84a0@xxxxxxxxxxxx > > Changes in v3: > - Fix a potential issue with TX buffer type, which is now set for each buffer. > - Link to v2: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v2-0-01c6caacabb6@xxxxxxxxxxxx > > Changes in v2: > - Use page pool memory model instead of MEM_TYPE_PAGE_ORDER0. > - In am65_cpsw_alloc_skb(), release reference on the page pool page > in case of error returned by build_skb(). > - [nit] Cleanup am65_cpsw_nuss_common_open/stop() functions. > - [nit] Arrange local variables in reverse xmas tree order. > - Link to v1: https://lore.kernel.org/r/20240223-am65-cpsw-xdp-basic-v1-1-9f0b6cbda310@xxxxxxxxxxxx > > --- > Julien Panis (3): > net: ethernet: ti: Add accessors for struct k3_cppi_desc_pool members > net: ethernet: ti: Add desc_infos member to struct k3_cppi_desc_pool > net: ethernet: ti: am65-cpsw: Add minimal XDP support > > drivers/net/ethernet/ti/am65-cpsw-nuss.c | 569 +++++++++++++++++++++++++--- > drivers/net/ethernet/ti/am65-cpsw-nuss.h | 13 + > drivers/net/ethernet/ti/k3-cppi-desc-pool.c | 41 ++ > drivers/net/ethernet/ti/k3-cppi-desc-pool.h | 6 + > 4 files changed, 578 insertions(+), 51 deletions(-) > --- > base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d > change-id: 20240223-am65-cpsw-xdp-basic-4db828508b48 > > Best regards,
