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From: Jakub Kicinski <kuba@kernel.org>
To: "Dragos Tatulea" <dtatulea@nvidia.com>
Cc: <davem@davemloft.net>, <netdev@vger.kernel.org>,
	<edumazet@google.com>, <pabeni@redhat.com>,
	<andrew+netdev@lunn.ch>, <horms@kernel.org>,
	<almasrymina@google.com>, <michael.chan@broadcom.com>,
	<tariqt@nvidia.com>, <hawk@kernel.org>,
	<ilias.apalodimas@linaro.org>, <alexanderduyck@fb.com>,
	<sdf@fomichev.me>
Subject: Re: [PATCH net-next 11/15] net: page_pool: add helper to pre-check if PP will be unreadable
Date: Wed, 20 Aug 2025 07:52:47 -0700	[thread overview]
Message-ID: <20250820075247.153b392b@kernel.org> (raw)
In-Reply-To: <DC77YRDDLDV2.2RNW77Q8HPLTH@nvidia.com>

On Wed, 20 Aug 2025 11:30:42 +0000 Dragos Tatulea wrote:
> > +bool __page_pool_rxq_wants_unreadable(struct net_device *dev, unsigned int qid);
> > +
> > +static inline bool
> > +page_pool_rxq_wants_unreadable(const struct page_pool_params *pp_params)
> > +{
> > +	return __page_pool_rxq_wants_unreadable(pp_params->netdev,
> > +						pp_params->queue_idx);
> > +}
> > +  
> Why not do this in the caller and have just a
> page_pool_rxq_wants_unreadable() instead? It does make the code more
> succint in the next patch but it looks weird as a generic function.
> Subjective opinion though.

Do you mean remove the version of the helper which takes pp_params?
Yeah, dunno. I wrote the version that takes pp_params first.
I wanted the helper to live next to page_pool_is_unreadable().

If we remove the version that takes the pp_params, this helper makes
more sense as an rxq helper, in netdev_queues.h / netdev_rx_queue.c :

bool netif_rxq_has_unreadable_mp(dev, rxq_idx)

right?

  reply	other threads:[~2025-08-20 14:52 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-20  2:56 [PATCH net-next 00/15] eth: fbnic: support queue API and zero-copy Rx Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 01/15] net: page_pool: add page_pool_get() Jakub Kicinski
2025-08-20 10:35   ` Jesper Dangaard Brouer
2025-08-20 10:58   ` Dragos Tatulea
2025-08-20 23:11   ` Mina Almasry
2025-08-20  2:56 ` [PATCH net-next 02/15] eth: fbnic: move page pool pointer from NAPI to the ring struct Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 03/15] eth: fbnic: move xdp_rxq_info_reg() to resource alloc Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 04/15] eth: fbnic: move page pool alloc to fbnic_alloc_rx_qt_resources() Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 05/15] eth: fbnic: use netmem_ref where applicable Jakub Kicinski
2025-08-20 23:22   ` Mina Almasry
2025-08-20  2:56 ` [PATCH net-next 06/15] eth: fbnic: request ops lock Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 07/15] eth: fbnic: split fbnic_disable() Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 08/15] eth: fbnic: split fbnic_flush() Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 09/15] eth: fbnic: split fbnic_enable() Jakub Kicinski
2025-08-20  2:56 ` [PATCH net-next 10/15] eth: fbnic: split fbnic_fill() Jakub Kicinski
2025-08-20  2:57 ` [PATCH net-next 11/15] net: page_pool: add helper to pre-check if PP will be unreadable Jakub Kicinski
2025-08-20 11:30   ` Dragos Tatulea
2025-08-20 14:52     ` Jakub Kicinski [this message]
2025-08-20 17:45       ` Dragos Tatulea
2025-08-20  2:57 ` [PATCH net-next 12/15] eth: fbnic: allocate unreadable page pool for the payloads Jakub Kicinski
2025-08-20 23:33   ` Mina Almasry
2025-08-21  0:45     ` Jakub Kicinski
2025-08-20  2:57 ` [PATCH net-next 13/15] eth: fbnic: defer page pool recycling activation to queue start Jakub Kicinski
2025-08-20  2:57 ` [PATCH net-next 14/15] eth: fbnic: don't pass NAPI into pp alloc Jakub Kicinski
2025-08-20  2:57 ` [PATCH net-next 15/15] eth: fbnic: support queue ops / zero-copy Rx Jakub Kicinski
2025-08-21  7:51 ` [PATCH net-next 00/15] eth: fbnic: support queue API and " Paolo Abeni
2025-08-21 14:28   ` Jakub Kicinski
2025-08-21 14:53     ` Taehee Yoo
2025-08-21 15:03       ` Jakub Kicinski
2025-08-21 15:22         ` Mina Almasry
2025-08-21 15:42           ` Jakub Kicinski
2025-08-21 15:02     ` Paolo Abeni
2025-08-21 15:20 ` patchwork-bot+netdevbpf

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