From: "Nikita V. Shirokov" <tehnerd@tehnerd.com>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: netdev@vger.kernel.org, "Nikita V. Shirokov" <tehnerd@tehnerd.com>
Subject: [PATCH bpf-next 08/10] [bpf]: make netronome nfp compatible w/ bpf_xdp_adjust_tail
Date: Mon, 16 Apr 2018 23:51:29 -0700 [thread overview]
Message-ID: <20180417065131.3632-9-tehnerd@tehnerd.com> (raw)
In-Reply-To: <20180417065131.3632-1-tehnerd@tehnerd.com>
w/ bpf_xdp_adjust_tail helper xdp's data_end pointer could be changed as
well (only "decrease" of pointer's location is going to be supported).
changing of this pointer will change packet's size.
for nfp driver we will just calculate packet's length unconditionally
Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
---
drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 1eb6549f2a54..d9111c077699 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -1722,7 +1722,7 @@ static int nfp_net_rx(struct nfp_net_rx_ring *rx_ring, int budget)
act = bpf_prog_run_xdp(xdp_prog, &xdp);
- pkt_len -= xdp.data - orig_data;
+ pkt_len = xdp.data_end - xdp.data;
pkt_off += xdp.data - orig_data;
switch (act) {
--
2.15.1
next prev parent reply other threads:[~2018-04-17 6:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 6:51 [PATCH bpf-next 00/10] introduction of bpf_xdp_adjust_tail Nikita V. Shirokov
2018-04-17 6:51 ` [PATCH bpf-next 01/10] [bpf]: adding bpf_xdp_adjust_tail helper Nikita V. Shirokov
2018-04-17 14:14 ` kbuild test robot
2018-04-17 22:58 ` Alexei Starovoitov
2018-04-17 6:51 ` [PATCH bpf-next 02/10] [bpf]: adding tests for bpf_xdp_adjust_tail Nikita V. Shirokov
2018-04-17 23:04 ` Alexei Starovoitov
2018-04-17 6:51 ` [PATCH bpf-next 03/10] [bpf]: add bpf_xdp_adjust_tail sample prog Nikita V. Shirokov
2018-04-17 6:51 ` [PATCH bpf-next 04/10] [bpf]: make generic xdp compatible w/ bpf_xdp_adjust_tail Nikita V. Shirokov
2018-04-17 23:06 ` Alexei Starovoitov
2018-04-17 6:51 ` [PATCH bpf-next 05/10] [bpf]: make mlx4 " Nikita V. Shirokov
2018-04-17 23:06 ` Alexei Starovoitov
2018-04-17 6:51 ` [PATCH bpf-next 06/10] [bpf]: make bnxt " Nikita V. Shirokov
2018-04-17 23:07 ` Alexei Starovoitov
2018-04-17 6:51 ` [PATCH bpf-next 07/10] [bpf]: make cavium thunder " Nikita V. Shirokov
2018-04-17 23:07 ` Alexei Starovoitov
2018-04-17 6:51 ` Nikita V. Shirokov [this message]
2018-04-17 23:08 ` [PATCH bpf-next 08/10] [bpf]: make netronome nfp " Alexei Starovoitov
2018-04-18 0:40 ` Jakub Kicinski
2018-04-17 6:51 ` [PATCH bpf-next 09/10] [bpf]: make tun " Nikita V. Shirokov
2018-04-18 2:16 ` Jason Wang
2018-04-17 6:51 ` [PATCH bpf-next 10/10] [bpf]: make virtio " Nikita V. Shirokov
2018-04-18 2:16 ` Jason Wang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180417065131.3632-9-tehnerd@tehnerd.com \
--to=tehnerd@tehnerd.com \
--cc=ast@kernel.org \
--cc=daniel@iogearbox.net \
--cc=jakub.kicinski@netronome.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.