From: Laurent Vivier <lvivier@redhat.com>
To: passt-dev@passt.top
Cc: Laurent Vivier <lvivier@redhat.com>
Subject: [PATCH] udp_vu: update segment size
Date: Wed, 4 Dec 2024 16:33:21 +0100 [thread overview]
Message-ID: <20241204153321.87117-1-lvivier@redhat.com> (raw)
In udp_vu_sock_recv(), collect a segment with a size defined to
IP_MAX_MTU + ETH_HLEN + sizeof(struct virtio_net_hdr_mrg_rxbuf)
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
udp_vu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/udp_vu.c b/udp_vu.c
index 9c697f3be247..41235101b69e 100644
--- a/udp_vu.c
+++ b/udp_vu.c
@@ -104,7 +104,8 @@ static int udp_vu_sock_recv(const struct ctx *c, int s, uint32_t events,
vu_init_elem(elem, iov_vu, VIRTQUEUE_MAX_SIZE);
iov_cnt = vu_collect(vdev, vq, elem, VIRTQUEUE_MAX_SIZE,
- IP_MAX_MTU - sizeof(struct udphdr) + hdrlen,
+ IP_MAX_MTU + ETH_HLEN +
+ sizeof(struct virtio_net_hdr_mrg_rxbuf),
NULL);
if (iov_cnt == 0)
return 0;
--
@@ -104,7 +104,8 @@ static int udp_vu_sock_recv(const struct ctx *c, int s, uint32_t events,
vu_init_elem(elem, iov_vu, VIRTQUEUE_MAX_SIZE);
iov_cnt = vu_collect(vdev, vq, elem, VIRTQUEUE_MAX_SIZE,
- IP_MAX_MTU - sizeof(struct udphdr) + hdrlen,
+ IP_MAX_MTU + ETH_HLEN +
+ sizeof(struct virtio_net_hdr_mrg_rxbuf),
NULL);
if (iov_cnt == 0)
return 0;
--
2.47.0
next reply other threads:[~2024-12-04 15:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-04 15:33 Laurent Vivier [this message]
2024-12-04 16:58 ` [PATCH] udp_vu: update segment size Stefano Brivio
2024-12-05 1:36 ` David Gibson
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