[PATCH net-next v3 0/7] net: lan966x: Extend xdp support

Horatiu Vultur
2022-11-21T21:25:01Z

Extend the current support of XDP in lan966x with the action XDP_TX and
XDP_REDIRECT.
The first patches just prepare the things such that it would be easier
to add XDP_TX and XDP_REDIRECT actions. Like adding XDP_PACKET_HEADROOM,
introduce helper functions, use the correct dma_dir for the page pool
The last 2 patches introduce the XDP actions XDP_TX and XDP_REDIRECT.

v2->v3:
- make sure to update rxq memory model
- update the page pool direction if there is any xdp program
- in case of action XDP_TX give back to reuse the page
- in case of action XDP_REDIRECT, remap the frame and make sure to
unmap it when is transmitted.

v1->v2:
- use skb_reserve of using skb_put and skb_pull
- make sure that data_len doesn't include XDP_PACKET_HEADROOM

Horatiu Vultur (7):
net: lan966x: Add XDP_PACKET_HEADROOM
net: lan966x: Introduce helper functions
net: lan966x: Add len field to lan966x_tx_dcb_buf
net: lan966x: Update rxq memory model
net: lan966x: Update dma_dir of page_pool_params
net: lan966x: Add support for XDP_TX
net: lan966x: Add support for XDP_REDIRECT

.../ethernet/microchip/lan966x/lan966x_fdma.c | 266 +++++++++++++++---
.../ethernet/microchip/lan966x/lan966x_main.c | 5 +-
.../ethernet/microchip/lan966x/lan966x_main.h | 19 ++
.../ethernet/microchip/lan966x/lan966x_xdp.c | 70 ++++-
4 files changed, 312 insertions(+), 48 deletions(-)

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2.38.0