netdev - RE: [PATCH V3 net-next] net: fec: add XDP

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Date: Tue, 8 Aug 2023 00:19:53 +0000
From: Wei Fang <wei.fang@....com>
To: Jakub Kicinski <kuba@...nel.org>
CC: Jesper Dangaard Brouer <hawk@...nel.org>, Jesper Dangaard Brouer
	<jbrouer@...hat.com>, "brouer@...hat.com" <brouer@...hat.com>,
	"davem@...emloft.net" <davem@...emloft.net>, "edumazet@...gle.com"
	<edumazet@...gle.com>, "pabeni@...hat.com" <pabeni@...hat.com>, Shenwei Wang
	<shenwei.wang@....com>, Clark Wang <xiaoning.wang@....com>, "ast@...nel.org"
	<ast@...nel.org>, "daniel@...earbox.net" <daniel@...earbox.net>,
	"john.fastabend@...il.com" <john.fastabend@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, dl-linux-imx
	<linux-imx@....com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
	Andrew Lunn <andrew@...n.ch>
Subject: RE: [PATCH V3 net-next] net: fec: add XDP_TX feature support

> On Mon, 7 Aug 2023 10:30:34 +0000 Wei Fang wrote:
> > ./xdp_rxq_info --dev eth0 --action XDP_TX Running XDP on dev:eth0
> > (ifindex:2) action:XDP_TX options:swapmac
> > XDP stats       CPU     pps         issue-pps
> > XDP-RX CPU      0       259,102     0
> > XDP-RX CPU      total   259,102
> 
> > Result 2: dma_sync_len method
> > Running XDP on dev:eth0 (ifindex:2) action:XDP_TX options:swapmac
> > XDP stats       CPU     pps         issue-pps
> > XDP-RX CPU      0       258,254     0
> > XDP-RX CPU      total   258,254
> 
> Just to be clear are these number with xdp_return_frame() replaced with
> page_pool_put_page(pool, page, 0, true); ?
Yes, I used the page_pool_put_page() to instead of xdp_return_frame() when
I tried the "dma_sync_len" method.