netdev - Re: [PATCH net-next v8 5/9] eth: bnxt: store rx buffer size per queue

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Message-ID: <017b07c8-ed86-4ed1-9793-c150ded68097@redhat.com>
Date: Tue, 13 Jan 2026 11:19:59 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Pavel Begunkov <asml.silence@...il.com>, netdev@...r.kernel.org
Cc: "David S . Miller" <davem@...emloft.net>,
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Subject: Re: [PATCH net-next v8 5/9] eth: bnxt: store rx buffer size per queue

On 1/9/26 12:28 PM, Pavel Begunkov wrote:
> @@ -4478,7 +4485,7 @@ static void bnxt_init_one_rx_agg_ring_rxbd(struct bnxt *bp,
>  	ring = &rxr->rx_agg_ring_struct;
>  	ring->fw_ring_id = INVALID_HW_RING_ID;
>  	if ((bp->flags & BNXT_FLAG_AGG_RINGS)) {
> -		type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) |
> +		type = ((u32)(u32)rxr->rx_page_size << RX_BD_LEN_SHIFT) |

Minor nit: duplicate cast above.

> diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
> index f5f07a7e6b29..4c880a9fba92 100644
> --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
> +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
> @@ -1107,6 +1107,7 @@ struct bnxt_rx_ring_info {
>  
>  	unsigned long		*rx_agg_bmap;
>  	u16			rx_agg_bmap_size;
> +	u16			rx_page_size;

Any special reason for using u16 above? AFAICS using u32 will not change
the struct size on 64 bit arches, and using u32 will likely yield better
code.

/P