From: Alexander Lobakin <alobakin@pm.me>
To: "Magnus Karlsson" <magnus.karlsson@intel.com>,
"Björn Töpel" <bjorn@kernel.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Jonathan Lemon <jonathan.lemon@gmail.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>, KP Singh <kpsingh@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <eric.dumazet@gmail.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
Dust Li <dust.li@linux.alibaba.com>,
Alexander Lobakin <alobakin@pm.me>,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org
Subject: [PATCH v5 bpf-next 4/6] virtio-net: support IFF_TX_SKB_NO_LINEAR
Date: Tue, 16 Feb 2021 14:34:39 +0000 [thread overview]
Message-ID: <20210216143333.5861-5-alobakin@pm.me> (raw)
In-Reply-To: <20210216143333.5861-1-alobakin@pm.me>
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Virtio net supports the case where the skb linear space is empty, so add
priv_flags.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
---
drivers/net/virtio_net.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ba8e63792549..f2ff6c3906c1 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2972,7 +2972,8 @@ static int virtnet_probe(struct virtio_device *vdev)
return -ENOMEM;
/* Set up network device as normal. */
- dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
+ dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE |
+ IFF_TX_SKB_NO_LINEAR;
dev->netdev_ops = &virtnet_netdev;
dev->features = NETIF_F_HIGHDMA;
--
2.30.1
next prev parent reply other threads:[~2021-02-16 14:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-16 14:33 [PATCH v5 bpf-next 0/6] xsk: build skb by page (aka generic zerocopy xmit) Alexander Lobakin
2021-02-16 14:34 ` [PATCH v5 bpf-next 1/6] netdev_priv_flags: add missing IFF_PHONY_HEADROOM self-definition Alexander Lobakin
2021-02-16 14:34 ` [PATCH v5 bpf-next 2/6] netdevice: check for net_device::priv_flags bitfield overflow Alexander Lobakin
2021-02-16 14:34 ` [PATCH v5 bpf-next 3/6] net: add priv_flags for allow tx skb without linear Alexander Lobakin
2021-02-16 14:34 ` Alexander Lobakin [this message]
2021-02-16 14:34 ` [PATCH v5 bpf-next 5/6] xsk: respect device's headroom and tailroom on generic xmit path Alexander Lobakin
2021-02-16 14:35 ` [PATCH v5 bpf-next 6/6] xsk: build skb by page (aka generic zerocopy xmit) Alexander Lobakin
2021-02-16 17:10 ` Alexander Lobakin
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=20210216143333.5861-5-alobakin@pm.me \
--to=alobakin@pm.me \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bjorn@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=dust.li@linux.alibaba.com \
--cc=eric.dumazet@gmail.com \
--cc=hawk@kernel.org \
--cc=jasowang@redhat.com \
--cc=john.fastabend@gmail.com \
--cc=jonathan.lemon@gmail.com \
--cc=kafai@fb.com \
--cc=kpsingh@kernel.org \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=magnus.karlsson@intel.com \
--cc=mst@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=songliubraving@fb.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=xuanzhuo@linux.alibaba.com \
--cc=yhs@fb.com \
/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.