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Message-ID: <ZM1joMiYtbrXVLv6@vergenet.net>
Date: Fri, 4 Aug 2023 22:46:24 +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>,
Yunsheng Lin <linyunsheng@...wei.com>,
Menglong Dong <imagedong@...cent.com>,
Richard Gobert <richardbgobert@...il.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 04/10] xsk: add
xsk_tx_completed_addr function
On Thu, Aug 03, 2023 at 10:04:30PM +0800, huangjie.albert wrote:
...
> index 13354a1e4280..a494d1dcb1c3 100644
> --- a/net/xdp/xsk_queue.h
> +++ b/net/xdp/xsk_queue.h
> @@ -428,6 +428,17 @@ static inline void __xskq_prod_submit(struct xsk_queue *q, u32 idx)
> smp_store_release(&q->ring->producer, idx); /* B, matches C */
> }
>
> +
nit: one blank line is enough
> +static inline void xskq_prod_submit_addr(struct xsk_queue *q, u64 addr)
> +{
> + struct xdp_umem_ring *ring = (struct xdp_umem_ring *)q->ring;
> + u32 idx = q->ring->producer;
> +
> + ring->desc[idx++ & q->ring_mask] = addr;
> +
> + __xskq_prod_submit(q, idx);
> +}
> +
> static inline void xskq_prod_submit(struct xsk_queue *q)
> {
> __xskq_prod_submit(q, q->cached_prod);
> --
> 2.20.1
>
>
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