From: David Gibson <david@gibson.dropbear.id.au>
To: Stefano Brivio <sbrivio@redhat.com>
Cc: passt-dev@passt.top, Laurent Vivier <lvivier@redhat.com>
Subject: Re: [PATCH 7/7] tcp: Update tap specific header too in tcp_fill_headers[46]()
Date: Wed, 1 May 2024 10:10:22 +1000 [thread overview]
Message-ID: <ZjGIbjxcZteRk7BJ@zatzit> (raw)
In-Reply-To: <20240430204809.52711861@elisabeth>
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On Tue, Apr 30, 2024 at 08:48:40PM +0200, Stefano Brivio wrote:
> On Mon, 29 Apr 2024 17:09:33 +1000
> David Gibson <david@gibson.dropbear.id.au> wrote:
>
> > tcp_fill_headers[46]() fill most of the headers, but the tap specific
> > header (the frame length for qemu sockets) is filled in afterwards.
> > Filling this as well:
> > * Removes a little redundancy between the tcp_send_flag() and
> > tcp_data_to_tap() path
> > * Makes calculation of the correct length a little easier
> > * Removes the now misleadingly named 'vnet_len' variable in
> > tcp_send_flag()
> >
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> > ---
> > tcp.c | 28 ++++++++++++++--------------
> > 1 file changed, 14 insertions(+), 14 deletions(-)
> >
> > diff --git a/tcp.c b/tcp.c
> > index 27c06958..01987c04 100644
> > --- a/tcp.c
> > +++ b/tcp.c
> > @@ -1321,6 +1321,7 @@ static void tcp_fill_header(struct tcphdr *th,
> > * tcp_fill_headers4() - Fill 802.3, IPv4, TCP headers in pre-cooked buffers
> > * @c: Execution context
> > * @conn: Connection pointer
> > + * @taph: TAP backend specific header
>
> Here and below: s/TAP/tap/. Other than the minor comments I shared the
Adjusted, thanks.
> series looks good to me (and looks like a big improvement in terms of
> possible sources of confusion).
--
David Gibson | 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:[~2024-05-01 0:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 7:09 [PATCH 0/7] Small improvements to IOV handling David Gibson
2024-04-29 7:09 ` [PATCH 1/7] checksum: Use proto_ipv6_header_psum() for ICMPv6 as well David Gibson
2024-04-29 7:09 ` [PATCH 2/7] tap: Split tap specific and L2 (ethernet) headers David Gibson
2024-04-30 18:46 ` Stefano Brivio
2024-04-30 23:53 ` David Gibson
2024-04-29 7:09 ` [PATCH 3/7] treewide: Standardise variable names for various packet lengths David Gibson
2024-04-30 18:46 ` Stefano Brivio
2024-05-01 0:05 ` David Gibson
2024-04-29 7:09 ` [PATCH 4/7] tcp: Simplify packet length calculation when preparing headers David Gibson
2024-04-29 7:09 ` [PATCH 5/7] tap, tcp: (Re-)abstract TAP specific header handling David Gibson
2024-04-30 18:47 ` Stefano Brivio
2024-05-01 0:06 ` David Gibson
2024-04-29 7:09 ` [PATCH 6/7] iov: Helper macro to construct iovs covering existing variables or fields David Gibson
2024-04-30 18:47 ` Stefano Brivio
2024-05-01 0:09 ` David Gibson
2024-04-29 7:09 ` [PATCH 7/7] tcp: Update tap specific header too in tcp_fill_headers[46]() David Gibson
2024-04-30 18:48 ` Stefano Brivio
2024-05-01 0:10 ` David Gibson [this message]
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