netdev - Re: [PATCH net-next v13 1/1] hinic3: module initialization and tx/rx logic

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Message-ID: <20250507195920.5227ee66@kernel.org>
Date: Wed, 7 May 2025 19:59:20 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Gur Stavi <gur.stavi@...wei.com>
Cc: Fan Gong <gongfan1@...wei.com>, <netdev@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Simon
 Horman <horms@...nel.org>, Andrew Lunn <andrew+netdev@...n.ch>,
 <linux-doc@...r.kernel.org>, Jonathan Corbet <corbet@....net>, Bjorn
 Helgaas <helgaas@...nel.org>, luosifu <luosifu@...wei.com>, Xin Guo
 <guoxin09@...wei.com>, Shen Chenyang <shenchenyang1@...ilicon.com>, Zhou
 Shuai <zhoushuai28@...wei.com>, Wu Like <wulike1@...wei.com>, Shi Jing
 <shijing34@...wei.com>, Meny Yossefi <meny.yossefi@...wei.com>, Lee Trager
 <lee@...ger.us>, Michael Ellerman <mpe@...erman.id.au>, Suman Ghosh
 <sumang@...vell.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>, Joe
 Damato <jdamato@...tly.com>, Christophe JAILLET
 <christophe.jaillet@...adoo.fr>
Subject: Re: [PATCH net-next v13 1/1] hinic3: module initialization and
 tx/rx logic

On Tue, 6 May 2025 11:35:28 +0300 Gur Stavi wrote:
> +	page = page_pool_alloc_frag(page_pool, &page_offset, buf_len,
> +				    GFP_ATOMIC |  __GFP_COMP);

No need for __GFP_COMP. page pool will add it if order > 0

> +static struct sk_buff *hinic3_fetch_rx_buffer(struct hinic3_rxq *rxq,
> +					      u32 pkt_len)
> +{
> +	struct net_device *netdev = rxq->netdev;
> +	struct sk_buff *skb;
> +	u32 sge_num;
> +
> +	skb = netdev_alloc_skb_ip_align(netdev, HINIC3_RX_HDR_SIZE);

Looks like this is only called from NAPI so you can use napi_alloc_skb()
it has an object cache so it is measurably faster