| From: |
| Julien Panis <jpanis-AT-baylibre.com> |
| To: |
| "David S. Miller" <davem-AT-davemloft.net>, Eric Dumazet <edumazet-AT-google.com>, Jakub Kicinski <kuba-AT-kernel.org>, Paolo Abeni <pabeni-AT-redhat.com>, Russell King <linux-AT-armlinux.org.uk>, Alexei Starovoitov <ast-AT-kernel.org>, Daniel Borkmann <daniel-AT-iogearbox.net>, Jesper Dangaard Brouer <hawk-AT-kernel.org>, John Fastabend <john.fastabend-AT-gmail.com>, Sumit Semwal <sumit.semwal-AT-linaro.org>, Christian König <christian.koenig-AT-amd.com>, Simon Horman <horms-AT-kernel.org>, Andrew Lunn <andrew-AT-lunn.ch> |
| Subject: |
| [PATCH v4 0/3] Add minimal XDP support to TI AM65 CPSW Ethernet driver |
| Date: |
| Tue, 12 Mar 2024 14:22:39 +0100 |
| Message-ID: |
| <20240223-am65-cpsw-xdp-basic-v4-0-38361a63a48b@baylibre.com> |
| Cc: |
| netdev-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, bpf-AT-vger.kernel.org, linux-media-AT-vger.kernel.org, dri-devel-AT-lists.freedesktop.org, linaro-mm-sig-AT-lists.linaro.org, Julien Panis <jpanis-AT-baylibre.com> |
| Archive-link: |
| Article |
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@baylibre.com>
---
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...
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...
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...
---
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 | 536 +++++++++++++++++++++++++---
drivers/net/ethernet/ti/am65-cpsw-nuss.h | 13 +
drivers/net/ethernet/ti/k3-cppi-desc-pool.c | 36 ++
drivers/net/ethernet/ti/k3-cppi-desc-pool.h | 4 +
4 files changed, 539 insertions(+), 50 deletions(-)
---
base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
change-id: 20240223-am65-cpsw-xdp-basic-4db828508b48
Best regards,
--
Julien Panis <jpanis@baylibre.com>
