netdev - Re: [RFC net-next 17/22] netdev: add support for setting rx-buf-len per queue

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Message-ID: <20250425164136.03b38e7c@kernel.org>
Date: Fri, 25 Apr 2025 16:41:36 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Stanislav Fomichev <stfomichev@...il.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
 pabeni@...hat.com, andrew+netdev@...n.ch, horms@...nel.org,
 donald.hunter@...il.com, sdf@...ichev.me, almasrymina@...gle.com,
 dw@...idwei.uk, asml.silence@...il.com, ap420073@...il.com,
 jdamato@...tly.com, dtatulea@...dia.com, michael.chan@...adcom.com
Subject: Re: [RFC net-next 17/22] netdev: add support for setting rx-buf-len
 per queue

On Tue, 22 Apr 2025 09:15:59 -0700 Stanislav Fomichev wrote:
> > +    -
> > +      name: queue-set
> > +      doc: Set per-queue configurable options.
> > +      attribute-set: queue
> > +      do:
> > +        request:
> > +          attributes:
> > +            - ifindex
> > +            - type
> > +            - id
> > +            - rx-buf-len  
> 
> Do we want some guidance going forward on what belongs to queue-set
> vs napi-set? (mostly) HW settings for the queue-set and (mostly) SW
> settings for (serving the queues) in napi-set?

One NAPI can have multiple queues hanging off, so all HW settings
with the exception of IRQ coalescing should probably be on the queue?