diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2020-12-22 22:09:29 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-01-08 13:39:24 -0800 |
| commit | be9df4aff65f18caa79b35f88f42c3d5a43af14f (patch) | |
| tree | 557249b78a79a93ec751c8bb8d56152641a1f874 /drivers/net/ethernet/ti/cpsw.c | |
| parent | 43b5169d8355ccf26d726fbc75f083b2429113e4 (diff) | |
| download | linux-be9df4aff65f18caa79b35f88f42c3d5a43af14f.tar.bz2 | |
net, xdp: Introduce xdp_prepare_buff utility routine
Introduce xdp_prepare_buff utility routine to initialize per-descriptor
xdp_buff fields (e.g. xdp_buff pointers). Rely on xdp_prepare_buff() in
all XDP capable drivers.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Acked-by: Marcin Wojtas <mw@semihalf.com>
Link: https://lore.kernel.org/bpf/45f46f12295972a97da8ca01990b3e71501e9d89.1608670965.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw.c')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 78a923391828..5239318e9686 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -392,21 +392,15 @@ static void cpsw_rx_handler(void *token, int len, int status) } if (priv->xdp_prog) { - xdp_init_buff(&xdp, PAGE_SIZE, &priv->xdp_rxq[ch]); + int headroom = CPSW_HEADROOM, size = len; + xdp_init_buff(&xdp, PAGE_SIZE, &priv->xdp_rxq[ch]); if (status & CPDMA_RX_VLAN_ENCAP) { - xdp.data = pa + CPSW_HEADROOM + - CPSW_RX_VLAN_ENCAP_HDR_SIZE; - xdp.data_end = xdp.data + len - - CPSW_RX_VLAN_ENCAP_HDR_SIZE; - } else { - xdp.data = pa + CPSW_HEADROOM; - xdp.data_end = xdp.data + len; + headroom += CPSW_RX_VLAN_ENCAP_HDR_SIZE; + size -= CPSW_RX_VLAN_ENCAP_HDR_SIZE; } - xdp_set_data_meta_invalid(&xdp); - - xdp.data_hard_start = pa; + xdp_prepare_buff(&xdp, pa, headroom, size, false); port = priv->emac_port + cpsw->data.dual_emac; ret = cpsw_run_xdp(priv, ch, &xdp, page, port); |