netdev - Re: [PATCH iwl-net] ice: recycle/free all of the fragments from multi-buffer packet

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Message-ID: <ZF5d22ib3IYUMHK9@nimitz>
Date: Fri, 12 May 2023 17:40:11 +0200
From: Piotr Raczynski <piotr.raczynski@...el.com>
To: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
CC: <intel-wired-lan@...ts.osuosl.org>, <netdev@...r.kernel.org>,
	<bpf@...r.kernel.org>, <anthony.l.nguyen@...el.com>,
	<magnus.karlsson@...el.com>
Subject: Re: [PATCH iwl-net] ice: recycle/free all of the fragments from
 multi-buffer packet

> @@ -1162,6 +1162,9 @@ int ice_clean_rx_irq(struct ice_rx_ring *rx_ring, int budget)
>  	bool failure;
>  	u32 first;
>  
> +	if (ntc != rx_ring->first_desc)
> +		cached_ntc = rx_ring->first_desc;
> +
Would it make sense to apply likely/unlikely here since  we check it per
packet?

Piotr
>  	/* Frame size depend on rx_ring setup when PAGE_SIZE=4K */
>  #if (PAGE_SIZE < 8192)

>