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authorLorenzo Bianconi <lorenzo@kernel.org>2020-12-23 00:09:29 +0300
committerAlexei Starovoitov <ast@kernel.org>2021-01-09 00:39:24 +0300
commitbe9df4aff65f18caa79b35f88f42c3d5a43af14f (patch)
tree557249b78a79a93ec751c8bb8d56152641a1f874 /drivers/net/ethernet/sfc
parent43b5169d8355ccf26d726fbc75f083b2429113e4 (diff)
downloadlinux-be9df4aff65f18caa79b35f88f42c3d5a43af14f.tar.xz
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/sfc')
-rw-r--r--drivers/net/ethernet/sfc/rx.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index eaa6650955d1..89c5c75f479f 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -294,12 +294,9 @@ static bool efx_do_xdp(struct efx_nic *efx, struct efx_channel *channel,
efx->rx_prefix_size);
xdp_init_buff(&xdp, efx->rx_page_buf_step, &rx_queue->xdp_rxq_info);
- xdp.data = *ehp;
- xdp.data_hard_start = xdp.data - EFX_XDP_HEADROOM;
-
/* No support yet for XDP metadata */
- xdp_set_data_meta_invalid(&xdp);
- xdp.data_end = xdp.data + rx_buf->len;
+ xdp_prepare_buff(&xdp, *ehp - EFX_XDP_HEADROOM, EFX_XDP_HEADROOM,
+ rx_buf->len, false);
xdp_act = bpf_prog_run_xdp(xdp_prog, &xdp);
rcu_read_unlock();