From: David Gibson <david@gibson.dropbear.id.au>
To: Laurent Vivier <lvivier@redhat.com>
Cc: passt-dev@passt.top
Subject: Re: [PATCH 0/7] vhost-user,tcp: Handle multiple iovec entries per virtqueue element
Date: Wed, 25 Mar 2026 16:07:08 +1100 [thread overview]
Message-ID: <acNtfC53XqXQb10p@zatzit> (raw)
In-Reply-To: <20260323165259.1253482-1-lvivier@redhat.com>
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On Mon, Mar 23, 2026 at 05:52:52PM +0100, Laurent Vivier wrote:
> This is the TCP counterpart to the UDP multi-iov series. It converts
> the TCP vhost-user receive path from direct pointer arithmetic (via
> vu_eth(), vu_ip(), etc.) to the iov_tail abstraction, removing the
> assumption that all headers reside in a single contiguous buffer.
>
> With this series applied, the TCP path correctly handles virtio-net
> drivers that provide multiple buffers per virtqueue element (e.g. iPXE
> provides the vnet header in the first buffer and the frame payload in a
> second one), matching the support already present in the UDP path.
>
> Based-on: 20260323143151.538673-1-lvivier@redhat.com
I didn't finish reviewing this series. However, I'm going to stop
here and wait for the spin based on only truncating the iovs when
they're flushed.
--
David Gibson (he or they) | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you, not the other way
| around.
http://www.ozlabs.org/~dgibson
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prev parent reply other threads:[~2026-03-25 5:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-23 16:52 Laurent Vivier
2026-03-23 16:52 ` [PATCH 1/7] tcp: pass ipv4h checksum, not a pointer to the checksum Laurent Vivier
2026-03-24 3:53 ` David Gibson
2026-03-24 7:56 ` Laurent Vivier
2026-03-24 23:49 ` David Gibson
2026-03-23 16:52 ` [PATCH 2/7] tcp: use iov_tail to access headers in tcp_fill_headers() Laurent Vivier
2026-03-24 3:58 ` David Gibson
2026-03-23 16:52 ` [PATCH 3/7] tcp_vu: Use iov_tail helpers to build headers in tcp_vu_prepare() Laurent Vivier
2026-03-25 4:46 ` David Gibson
2026-03-23 16:52 ` [PATCH 4/7] tcp_vu: Support multibuffer frames in tcp_vu_sock_recv() Laurent Vivier
2026-03-25 5:06 ` David Gibson
2026-03-23 16:52 ` [PATCH 5/7] tcp: Use iov_tail to access headers in tcp_prepare_flags() Laurent Vivier
2026-03-23 16:52 ` [PATCH 6/7] iov: introduce iov_memcopy() Laurent Vivier
2026-03-23 16:52 ` [PATCH 7/7] tcp_vu: Use iov_tail helpers to build headers in tcp_vu_send_flag() Laurent Vivier
2026-03-25 5:07 ` David Gibson [this message]
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