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[PATCH v3 05/11] tap: Shrink zeroed virtio-net header
From: |
Akihiko Odaki |
Subject: |
[PATCH v3 05/11] tap: Shrink zeroed virtio-net header |
Date: |
Thu, 12 Oct 2023 00:39:36 +0900 |
tap prepends a zeroed virtio-net header when writing a packet to a
tap with virtio-net header enabled but not in use. This only happens
when s->host_vnet_hdr_len == sizeof(struct virtio_net_hdr).
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
net/tap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/tap.c b/net/tap.c
index 668d69c0de..4c1eb92076 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -118,7 +118,7 @@ static ssize_t tap_receive_iov(NetClientState *nc, const
struct iovec *iov,
TAPState *s = DO_UPCAST(TAPState, nc, nc);
const struct iovec *iovp = iov;
struct iovec iov_copy[iovcnt + 1];
- struct virtio_net_hdr_mrg_rxbuf hdr = { };
+ struct virtio_net_hdr hdr = { };
if (s->host_vnet_hdr_len && !s->using_vnet_hdr) {
iov_copy[0].iov_base = &hdr;
--
2.42.0
- [PATCH v3 00/11] virtio-net RSS/hash report fixes, Akihiko Odaki, 2023/10/11
- [PATCH v3 01/11] tap: Remove tap_probe_vnet_hdr_len(), Akihiko Odaki, 2023/10/11
- [PATCH v3 02/11] tap: Remove qemu_using_vnet_hdr(), Akihiko Odaki, 2023/10/11
- [PATCH v3 05/11] tap: Shrink zeroed virtio-net header,
Akihiko Odaki <=
- [PATCH v3 06/11] virtio-net: Copy header only when necessary, Akihiko Odaki, 2023/10/11
- [PATCH v3 09/11] virtio-net: Return an error when vhost cannot enable RSS, Akihiko Odaki, 2023/10/11
- [PATCH v3 10/11] virtio-net: Do not clear VIRTIO_NET_F_RSS, Akihiko Odaki, 2023/10/11
- [PATCH v3 03/11] net: Move virtio-net header length assertion, Akihiko Odaki, 2023/10/11
- [PATCH v3 04/11] net: Remove receive_raw(), Akihiko Odaki, 2023/10/11
- [PATCH v3 07/11] virtio-net: Disable RSS on reset, Akihiko Odaki, 2023/10/11
- [PATCH v3 08/11] virtio-net: Unify the logic to update NIC state for RSS, Akihiko Odaki, 2023/10/11
- [PATCH v3 11/11] ebpf: Fix RSS error handling, Akihiko Odaki, 2023/10/11