linux-kernel - Re: [RFC Optimizing veth xsk performance 03/10] veth: add support for send queue

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Message-ID: <ZM1jS2ndLNS+AjIv@vergenet.net>
Date:   Fri, 4 Aug 2023 22:44:59 +0200
From:   Simon Horman <horms@...nel.org>
To:     "huangjie.albert" <huangjie.albert@...edance.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Björn Töpel <bjorn@...nel.org>,
        Magnus Karlsson <magnus.karlsson@...el.com>,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Pavel Begunkov <asml.silence@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Richard Gobert <richardbgobert@...il.com>,
        Yunsheng Lin <linyunsheng@...wei.com>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:XDP (eXpress Data Path)" <bpf@...r.kernel.org>
Subject: Re: [RFC Optimizing veth xsk performance 03/10] veth: add support
 for send queue

On Thu, Aug 03, 2023 at 10:04:29PM +0800, huangjie.albert wrote:

...

> @@ -69,11 +74,25 @@ struct veth_rq {
>  	struct page_pool	*page_pool;
>  };
>  
> +struct veth_sq {
> +	struct napi_struct	xdp_napi;
> +	struct net_device	*dev;
> +	struct xdp_mem_info	xdp_mem;
> +	struct veth_sq_stats	stats;
> +	u32 queue_index;
> +	/* this is for xsk */
> +	struct {
> +		struct xsk_buff_pool __rcu *pool;
> +		u32 last_cpu;
> +	}xsk;

nit: '}xsk;' -> '} xsk;'

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