netdev - Re: [PATCH 0/3] igb: XDP/ZC follow up

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Message-ID: <87ikpgr173.fsf@kurt.kurt.home>
Date: Tue, 11 Feb 2025 15:44:00 +0100
From: Kurt Kanzenbach <kurt@...utronix.de>
To: Joe Damato <jdamato@...tly.com>
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>, Przemek Kitszel
 <przemyslaw.kitszel@...el.com>, Andrew Lunn <andrew+netdev@...n.ch>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org
Subject: Re: [PATCH 0/3] igb: XDP/ZC follow up

On Mon Feb 10 2025, Joe Damato wrote:
> On Mon, Feb 10, 2025 at 10:19:34AM +0100, Kurt Kanzenbach wrote:
>> This is a follow up for the igb XDP/ZC implementation. The first two 
>> patches link the IRQs and queues to NAPI instances. This is required to 
>> bring back the XDP/ZC busy polling support. The last patch removes 
>> undesired IRQs (injected via igb watchdog) while busy polling with 
>> napi_defer_hard_irqs and gro_flush_timeout set.
>
> You may want to use netif_napi_add_config to enable persistent NAPI
> config, btw. This makes writing userland programs based on
> SO_INCOMING_NAPI_ID much easier.

Thanks, that looks useful too. I'll add another patch to this series to
use netif_napi_add_config().

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