netdev - Re: [PATCH v6 net-next 0/5] net: dsa: hsr: Enable HSR HW offloading for KSZ9477

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Date: Wed, 27 Sep 2023 01:54:01 +0300
From: Vladimir Oltean <olteanv@...il.com>
To: Lukasz Majewski <lukma@...x.de>
Cc: Tristram.Ha@...rochip.com, Eric Dumazet <edumazet@...gle.com>,
	Andrew Lunn <andrew@...n.ch>, davem@...emloft.net,
	Woojung Huh <woojung.huh@...rochip.com>,
	Oleksij Rempel <o.rempel@...gutronix.de>,
	Florian Fainelli <f.fainelli@...il.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	UNGLinuxDriver@...rochip.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 net-next 0/5] net: dsa: hsr: Enable HSR HW offloading
 for KSZ9477

On Fri, Sep 22, 2023 at 03:31:03PM +0200, Lukasz Majewski wrote:
> This patch series provides support for HSR HW offloading in KSZ9477
> switch IC.
> 
> To test this feature:
> ip link add name hsr0 type hsr slave1 lan1 slave2 lan2 supervision 45 version 1
> ip link set dev lan1 up
> ip link set dev lan2 up
> ip a add 192.168.0.1/24 dev hsr0
> ip link set dev hsr0 up
> 
> To remove HSR network device:
> ip link del hsr0
> 
> To test if one can adjust MAC address:
> ip link set lan2 address 00:01:02:AA:BB:CC
> 
> It is also possible to create another HSR interface, but it will
> only support HSR is software - e.g.
> ip link add name hsr1 type hsr slave1 lan3 slave2 lan4 supervision 45 version 1
> 
> Test HW:
> Two KSZ9477-EVB boards with HSR ports set to "Port1" and "Port2".
> 
> Performance SW used:
> nuttcp -S --nofork
> nuttcp -vv -T 60 -r 192.168.0.2
> nuttcp -vv -T 60 -t 192.168.0.2
> 
> Code: v6.6.0-rc2+ Linux net-next repository
> SHA1: 5a1b322cb0b7d0d33a2d13462294dc0f46911172
> 
> Tested HSR v0 and v1
> Results:
> With KSZ9477 offloading support added: RX: 100 Mbps TX: 98 Mbps
> With no offloading 		       RX: 63 Mbps  TX: 63 Mbps

Reviewed-by: Vladimir Oltean <vladimir.oltean@....com>

Thanks!