From: "Daniel Zahka" <daniel.zahka@gmail.com>
To: "Harshitha Ramamurthy" <hramamurthy@google.com>,
"Daniel Zahka" <daniel.zahka@gmail.com>
Cc: "Alexander Duyck" <alexanderduyck@fb.com>,
"Jakub Kicinski" <kuba@kernel.org>, <kernel-team@meta.com>,
"Andrew Lunn" <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next 3/4] eth: mpnic: set Rx buffer minimums using page size and mtu
Date: Mon, 05 Oct 2026 07:15:49 -0400 [thread overview]
Message-ID: <DLWV19JLLG9C.17IJGD2C6XDK4@gmail.com> (raw)
In-Reply-To: <CAEAWyHfRqE5wJTi7jq6LAK4-+i0bTFGzVU_HByEGUJJ7sGcGbA@mail.gmail.com>
On Fri Oct 2, 2026 at 8:50 PM EDT, Harshitha Ramamurthy wrote:
> On Thu, Oct 1, 2026 at 9:46 AM Daniel Zahka <daniel.zahka@gmail.com> wrote:
>>
>> Set buffer based drop thresholds in the Rx path based on page size and
>> the max MTU supported. The device will drop packets if it does not have
>> at least the minimum number of completely unused buffer descriptors
>> available.
>>
>> These thresholds are currently set to 17 BDs for both HPQ and PPQ. These
>
> nit: if there is a v2, it would be helpful for review if terms like
> PPQ/HPQ were expanded here.
>
Thanks for taking a look. The acronyms are:
HPQ: header page queue
PPQ: payload page queue
next prev parent reply other threads:[~2026-10-05 11:15 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 16:38 [PATCH net-next 0/4] mpnic: add NAPI buffer depletion check Daniel Zahka
2026-10-01 16:38 ` [PATCH net-next 1/4] eth: mpnic: use WRITE_ONCE() for BDQ head and tail updates Daniel Zahka
2026-10-01 16:38 ` [PATCH net-next 2/4] eth: mpnic: add a service task Daniel Zahka
2026-10-01 16:39 ` [PATCH net-next 3/4] eth: mpnic: set Rx buffer minimums using page size and mtu Daniel Zahka
2026-10-03 0:50 ` Harshitha Ramamurthy
2026-10-05 11:15 ` Daniel Zahka [this message]
2026-10-01 16:39 ` [PATCH net-next 4/4] eth: mpnic: add a NAPI depletion check Daniel Zahka
2026-10-03 0:53 ` Harshitha Ramamurthy
2026-10-05 11:42 ` Daniel Zahka
2026-10-01 16:45 ` [PATCH net-next 0/4] mpnic: add NAPI buffer " netdev-bot+sinfo
2026-10-01 18:26 ` Daniel Zahka
2026-10-03 0:54 ` Harshitha Ramamurthy
2026-10-06 0:00 ` patchwork-bot+netdevbpf
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