linux-kernel - Re: [PATCHv4 net-next] octeontx2-pf: Add RSS multi group support

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Message-ID: <20201216095924.278777df@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Wed, 16 Dec 2020 09:59:24 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Geetha sowjanya <gakula@...vell.com>
Cc:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <sgoutham@...vell.com>, <davem@...emloft.net>
Subject: Re: [PATCHv4 net-next] octeontx2-pf: Add RSS multi group support

On Tue, 15 Dec 2020 09:41:56 +0530 Geetha sowjanya wrote:
> Hardware supports 8 RSS groups per interface. Currently we are using
> only group '0'. This patch allows user to create new RSS groups/contexts
> and use the same as destination for flow steering rules.
> 
> usage:
> To steer the traffic to RQ 2,3
> 
> ethtool -X eth0 weight 0 0 1 1 context new
> (It will print the allocated context id number)
> New RSS context is 1
> 
> ethtool -N eth0 flow-type tcp4 dst-port 80 context 1 loc 1
> 
> To delete the context
> ethtool -X eth0 context 1 delete
> 
> When an RSS context is removed, the active classification
> rules using this context are also removed.

This came in right as we were sending the PR for 5.11 to Linus, 
and it didn't make it to the current release. Please repost in 
two weeks when the merge window is over. Thanks!