diff options
| author | Horatiu Vultur <horatiu.vultur@microchip.com> | 2022-11-23 21:31:38 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-11-25 10:38:10 +0000 |
| commit | 19c6f534f63608fbf966897b2c64fefcb916dc08 (patch) | |
| tree | 70ba61a591ba70f1d29ac42f101d4de0cbb907cc /drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c | |
| parent | 560c7223d6e48171d5a34ca07f6c886d364bcbdf (diff) | |
net: lan966x: Add support for XDP_TX
Extend lan966x XDP support with the action XDP_TX. In this case when the
received buffer needs to execute XDP_TX, the buffer will be moved to the
TX buffers. So a new RX buffer will be allocated.
When the TX finish with the frame, it would give back the buffer to the
page pool.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c b/drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c index ba7aa6df9d0e..8996110a0846 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c @@ -54,6 +54,7 @@ int lan966x_xdp_run(struct lan966x_port *port, struct page *page, u32 data_len) { struct bpf_prog *xdp_prog = port->xdp_prog; struct lan966x *lan966x = port->lan966x; + struct xdp_frame *xdpf; struct xdp_buff xdp; u32 act; @@ -66,6 +67,13 @@ int lan966x_xdp_run(struct lan966x_port *port, struct page *page, u32 data_len) switch (act) { case XDP_PASS: return FDMA_PASS; + case XDP_TX: + xdpf = xdp_convert_buff_to_frame(&xdp); + if (!xdpf) + return FDMA_DROP; + + return lan966x_fdma_xmit_xdpf(port, xdpf, page) ? + FDMA_DROP : FDMA_TX; default: bpf_warn_invalid_xdp_action(port->dev, xdp_prog, act); fallthrough; |