From: Jakub Kicinski <kuba@kernel.org>
To: Luke Howard <lukeh@padl.com>
Cc: "Cedric Jehasse via B4 Relay"
<devnull+cedric.jehasse.luminex.be@kernel.org>,
cedric.jehasse@luminex.be, "Andrew Lunn" <andrew@lunn.ch>,
"Vladimir Oltean" <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>,
"Simon Horman" <horms@kernel.org>,
"Russell King" <linux@armlinux.org.uk>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Marek Behún" <kabel@kernel.org>,
"Cedric Jehasse" <cedric.jehasse@gmail.com>
Subject: Re: [PATCH net-next v7 2/2] net: dsa: mv88e6xxx: add support for credit based shaper
Date: Mon, 15 Jun 2026 09:51:12 -0700 [thread overview]
Message-ID: <20260615095112.1dca0977@kernel.org> (raw)
In-Reply-To: <9E7B1B5A-ACE1-4488-A600-96FAD88D070E@padl.com>
On Sat, 13 Jun 2026 13:37:08 +1000 Luke Howard wrote:
> On egress, one can use the switch chips’ AVB support, but this limits
> the number of TCs to three (corresponding to SR class A, B, and
> ‘legacy’ traffic). I have a submitted MQPRIO offload patch that does
> this. This matches how MQPRIO and CBS are used on end station NICs,
> but is not flexible enough to support an arbitrary number of TCs.
> Because of this, offloading PRIO may be cleaner.
Yes, it's been a while since I worked on qdisc offload, but the NIC /
host-centric offloads operate quite differently than the switch-centric
ones. Offloading MQPRIO to a switch is likely to lead to technical debt.
next prev parent reply other threads:[~2026-06-15 16:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-09 12:10 [PATCH net-next v7 0/2] net: dsa: mv88e6xxx: add support for credit based shaper Cedric Jehasse via B4 Relay
2026-06-09 12:10 ` [PATCH net-next v7 1/2] net: dsa: mv88e6xxx: use the hw tx queues Cedric Jehasse via B4 Relay
2026-06-09 12:10 ` [PATCH net-next v7 2/2] net: dsa: mv88e6xxx: add support for credit based shaper Cedric Jehasse via B4 Relay
2026-06-12 22:36 ` Jakub Kicinski
2026-06-13 3:37 ` Luke Howard
2026-06-15 16:51 ` Jakub Kicinski [this message]
2026-06-15 14:29 ` Cedric Jehasse
2026-06-15 16:54 ` Jakub Kicinski
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