linux-kernel - Re: [PATCH 3/4] arm64: dts: rockchip: Add HINLINK H68K

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Message-ID: <20250901062437.780cc71a.xunil@tahomasoft.com>
Date: Mon, 1 Sep 2025 06:24:37 -0400
From: Erik Beck <xunil@...omasoft.com>
To: Chukun Pan <amadeus@....edu.cn>
Cc: conor+dt@...nel.org, devicetree@...r.kernel.org, heiko@...ech.de,
 krzk+dt@...nel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org, Andrew
 Lunn <andrew@...n.ch>
Subject: Re: [PATCH 3/4] arm64: dts: rockchip: Add HINLINK H68K

On Mon,  1 Sep 2025 15:00:08 +0800
Chukun Pan <amadeus@....edu.cn> wrote:

> Hi,
> 
> > Please change phy-mode here to "rgmii". This change will yield an
> > ethernet speed throughput change of a factor of 100+.   
> 
> > Same as above: Please change phy-mode here to "rgmii". This change
> > will yield an ethernet speed throughput change of a factor of 100+.   
> 
> This doesn't make sense. When I first submitted it to coolsnowwolf/lede
> in 2022, I used "rgmii-id" as the phy-mode, and it worked:
> https://github.com/coolsnowwolf/lede/blob/master/target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568-opc-h68k.dts#L24
> 
> Are you experiencing issues with both eth0 and eth1 or just one of them?
> Are you using the generic-rk3568 target for U-Boot?
> 

Hi Chukun, thanks for your response. 

At Andrew Lunn's suggestion, I'm doing
more granular and rigorous testing, now using iperf3. I'll post more details
of results here after I retest a couple of scenarios. 

However, I will report now that so far, I'm getting better (faster) and more
consistent results using iperf3.

~Erik

> I can't reproduce your problem in my test.
> 
> eth0/gmac1 (as lan):
> root@...nWrt:~# iperf3 -c 192.168.1.100
> Connecting to host 192.168.1.100, port 5201
> [ ID] Interval           Transfer     Bitrate         Retr
> [  5]   0.00-10.00  sec  1.10 GBytes   942 Mbits/sec   29            sender
> [  5]   0.00-10.04  sec  1.10 GBytes   936 Mbits/sec
> receiver
> 
> root@...nWrt:~# iperf3 -c 192.168.1.100 -R
> Connecting to host 192.168.1.100, port 5201
> Reverse mode, remote host 192.168.1.100 is sending
> [ ID] Interval           Transfer     Bitrate         Retr
> [  5]   0.00-10.04  sec  1.10 GBytes   939 Mbits/sec    1            sender
> [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec
> receiver
> 
> eth1/gmac0 (as wan):
> root@...nWrt:~# iperf3 -c 192.168.0.2 -P 4
> Connecting to host 192.168.0.2, port 5201
> [ ID] Interval           Transfer     Bitrate         Retr
> [SUM]   0.00-10.00  sec  1.10 GBytes   945 Mbits/sec  1191
> sender [SUM]   0.00-10.05  sec  1.09 GBytes   935 Mbits/sec
>  receiver
> 
> root@...nWrt:~# iperf3 -c 192.168.0.2 -R
> Connecting to host 192.168.0.2, port 5201
> Reverse mode, remote host 192.168.0.2 is sending
> [ ID] Interval           Transfer     Bitrate         Retr
> [  5]   0.00-10.06  sec  1.10 GBytes   939 Mbits/sec    6            sender
> [  5]   0.00-10.00  sec  1.10 GBytes   941 Mbits/sec
> receiver
> 
> --
> 2.25.1
> 
> 
> 
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

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