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Message-ID: <20230807093354.184bc18b@kernel.org>
Date:   Mon, 7 Aug 2023 09:33:54 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Wei Fang <wei.fang@....com>
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); ?

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