From: David Gibson <david@gibson.dropbear.id.au>
To: Laurent Vivier <lvivier@redhat.com>
Cc: passt-dev@passt.top
Subject: Re: [PATCH v11 30/30] packet: Add support for multi-vector packets
Date: Wed, 3 Sep 2025 11:11:46 +1000 [thread overview]
Message-ID: <aLeV0msmD4s0SPkY@zatzit> (raw)
In-Reply-To: <20250902075253.990038-31-lvivier@redhat.com>
[-- Attachment #1: Type: text/plain, Size: 1170 bytes --]
On Tue, Sep 02, 2025 at 09:52:53AM +0200, Laurent Vivier wrote:
> The packet pool was previously limited to handling packets contained
> within a single buffer.
>
> This patch extends the packet pool to support iovec array,
> allowing a single logical packet to be composed of multiple iovec.
>
> To accommodate this, the storage format within the pool is modified.
> For a multi-vector packet, a header entry is now stored first with
> iov_base = NULL and iov_len holding the number of subsequent
> vectors. The actual data vectors are then stored in the following
> pool slots.
>
> The packet_add_do() and packet_get_do() functions are updated to
> manage this new format for storing and retrieving packets. The
> pool_full() check is also adjusted to ensure there is enough
> space for all vectors of a new packet before adding it.
>
> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
--
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
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2025-09-03 1:11 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 7:52 [PATCH v11 00/30] Introduce discontiguous frames management Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 01/30] arp: Don't mix incoming and outgoing buffers Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 02/30] iov: Introduce iov_tail_clone() and iov_drop_header() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 03/30] iov: Update IOV_REMOVE_HEADER() and IOV_PEEK_HEADER() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 04/30] tap: Use iov_tail with tap_add_packet() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 05/30] packet: Use iov_tail with packet_add() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 06/30] packet: Add packet_data() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 07/30] arp: Convert to iov_tail Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 08/30] ndp: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 09/30] icmp: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 10/30] udp: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 11/30] tcp: Convert tcp_tap_handler() to use iov_tail Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 12/30] tcp: Convert tcp_data_from_tap() " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 13/30] dhcpv6: move offset initialization out of dhcpv6_opt() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 14/30] dhcpv6: Extract sending of NotOnLink status Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 15/30] dhcpv6: Convert to iov_tail Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 16/30] dhcpv6: Use iov_tail in dhcpv6_opt() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 17/30] dhcp: Convert to iov_tail Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 18/30] ip: Use iov_tail in ipv6_l4hdr() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 19/30] tap: Convert tap4_handler() to iov_tail Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 20/30] tap: Convert tap6_handler() " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 21/30] packet: rename packet_data() to packet_get() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 22/30] arp: use iov_tail rather than pool Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 23/30] dhcp: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 24/30] dhcpv6: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 25/30] icmp: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 26/30] ndp: " Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 27/30] packet: remove PACKET_POOL() and PACKET_POOL_P() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 28/30] packet: remove unused parameter from PACKET_POOL_DECL() Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 29/30] packet: Refactor vhost-user memory region handling Laurent Vivier
2025-09-02 7:52 ` [PATCH v11 30/30] packet: Add support for multi-vector packets Laurent Vivier
2025-09-03 1:11 ` David Gibson [this message]
2025-09-03 19:13 ` [PATCH v11 00/30] Introduce discontiguous frames management Stefano Brivio
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=aLeV0msmD4s0SPkY@zatzit \
--to=david@gibson.dropbear.id.au \
--cc=lvivier@redhat.com \
--cc=passt-dev@passt.top \
/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.
Code repositories for project(s) associated with this public inbox
https://passt.top/passt
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for IMAP folder(s).