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From: Thomas Monjalon <thomas@monjalon.net>
To: Robin Jarry <rjarry@redhat.com>
Cc: dev@dpdk.org, Gregory Etelson <getelson@nvidia.com>, stable@dpdk.org
Subject: Re: [PATCH dpdk v2] net: fix L2 ptype assignment in VLAN loop
Date: Wed, 22 Apr 2026 15:16:54 +0200	[thread overview]
Message-ID: <1924482.atdPhlSkOF@thomas> (raw)
In-Reply-To: <20260422103838.649578-2-rjarry@redhat.com>

22/04/2026 12:38, Robin Jarry:
> Since commit 1f250674085a ("net: fix packet type for stacked VLAN"),
> rte_net_get_ptype() uses |= to set the L2 ptype inside the VLAN
> parsing loop. Since pkt_type is already initialized with
> RTE_PTYPE_L2_ETHER (0x1), or-ing it with RTE_PTYPE_L2_ETHER_VLAN
> (0x6) results in RTE_PTYPE_L2_ETHER_QINQ (0x7). This causes single
> VLAN frames to be misidentified as QinQ.

Thanks for finding this major regression.

Minor nit about the title (for whoever will merge it):
we don't really care the problem is in a loop.
I think this title is easier to read:
	net: fix VLAN packet type



  reply	other threads:[~2026-04-22 13:16 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-22 10:28 [PATCH dpdk] net: fix L2 ptype assignment in VLAN loop Robin Jarry
2026-04-22 10:35 ` Robin Jarry
2026-04-22 10:38 ` [PATCH dpdk v2] " Robin Jarry
2026-04-22 13:16   ` Thomas Monjalon [this message]
2026-04-22 13:18     ` Robin Jarry
2026-04-22 13:23   ` David Marchand
2026-04-22 13:32 ` [PATCH dpdk v3] net: fix VLAN packet type Robin Jarry
2026-04-23  9:19   ` Kevin Traynor
2026-04-23  9:49     ` Robin Jarry
2026-04-23 10:59       ` Kevin Traynor
2026-04-23 11:11         ` Robin Jarry
2026-04-23 11:24 ` [PATCH dpdk v4] " Robin Jarry
2026-04-24 16:18   ` Kevin Traynor
2026-04-25  8:40   ` David Marchand
2026-04-27 10:47     ` Robin Jarry
2026-04-27 15:53       ` Thomas Monjalon
2026-04-30 10:12         ` David Marchand
2026-04-30 11:06           ` Morten Brørup
2026-05-15 11:17     ` Kevin Traynor

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