leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net, xdp: Introduce xdp_prepare_buff utility routine

Browse Source 
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>
This commit is contained in:
Lorenzo Bianconi
2020-12-22 22:09:29 +01:00
committed by Alexei Starovoitov
parent 43b5169d83
commit be9df4aff6
28 changed files with 105 additions and 152 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/xen-netfront.c
View File

@@ -866,10 +866,8 @@ static u32 xennet_run_xdp(struct netfront_queue *queue, struct page *pdata,
xdp_init_buff(xdp, XEN_PAGE_SIZE - XDP_PACKET_HEADROOM,
&queue->xdp_rxq);
xdp->data_hard_start = page_address(pdata);
xdp->data = xdp->data_hard_start + XDP_PACKET_HEADROOM;
xdp_set_data_meta_invalid(xdp);
xdp->data_end = xdp->data + len;
xdp_prepare_buff(xdp, page_address(pdata), XDP_PACKET_HEADROOM,
len, false);
act = bpf_prog_run_xdp(prog, xdp);
switch (act) {