linux-kernel - Re: [EXTERNAL] Re: [net-next PATCH v2 7/9] octeontx2-pf: Add support to sync link state between representor and VFs

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Message-ID: <ZikaJcqEqwhN-RSE@nanopsycho>
Date: Wed, 24 Apr 2024 16:41:41 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: Geethasowjanya Akula <gakula@...vell.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kuba@...nel.org" <kuba@...nel.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"pabeni@...hat.com" <pabeni@...hat.com>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	Sunil Kovvuri Goutham <sgoutham@...vell.com>,
	Subbaraya Sundeep Bhatta <sbhatta@...vell.com>,
	Hariprasad Kelam <hkelam@...vell.com>
Subject: Re: [EXTERNAL] Re: [net-next PATCH v2 7/9] octeontx2-pf: Add support
 to sync link state between representor and VFs

Tue, Apr 23, 2024 at 06:09:02PM CEST, gakula@...vell.com wrote:
>
>
>> -----Original Message-----
>> From: Jiri Pirko <jiri@...nulli.us>
>> Sent: Tuesday, April 23, 2024 6:37 PM
>> To: Geethasowjanya Akula <gakula@...vell.com>
>> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org; kuba@...nel.org;
>> davem@...emloft.net; pabeni@...hat.com; edumazet@...gle.com; Sunil
>> Kovvuri Goutham <sgoutham@...vell.com>; Subbaraya Sundeep Bhatta
>> <sbhatta@...vell.com>; Hariprasad Kelam <hkelam@...vell.com>
>> Subject: [EXTERNAL] Re: [net-next PATCH v2 7/9] octeontx2-pf: Add support to
>> sync link state between representor and VFs
>> 
>> Prioritize security for external emails: Confirm sender and content safety
>> before clicking links or opening attachments
>> 
>> ----------------------------------------------------------------------
>> Mon, Apr 22, 2024 at 11:53:59AM CEST, gakula@...vell.com wrote:
>> >Implements mbox function to sync the link state between VFs and its
>> >representors. Same mbox is use to notify other updates like mtu etc.
>> >
>> >This patch enables
>> >- Reflecting the link state of representor based on the VF state and
>> >link state of VF based on representor.
>> 
>> Could you please elaborate a bit more how exactly this behaves? Examples
>> would help.
>> 
>We patch implement the below requirement mentioned the representors documentation.
>Eg: ip link set r0p1 up/down  will disable carrier on/off of the corresponding representee(eth0) interface.
>
>
>"
>The representee's link state is controlled through the representor. Setting the representor administratively UP or DOWN should cause carrier ON or OFF at the representee.

Put these into patch description please.

>"
>
>> 
>> >- On VF interface up/down a notification is sent via mbox to
>> >representor
>> >  to update the link state.
>> >- On representor interafce up/down will cause the link state update of VF.
>> >