linux-kernel - RE: [EXTERNAL] Re: [net-next PATCH v4 09/10] octeontx2-pf: Add representors for sdp MAC

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Date: Mon, 13 May 2024 10:32:52 +0000
From: Geethasowjanya Akula <gakula@...vell.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.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 v4 09/10] octeontx2-pf: Add
 representors for sdp MAC



> -----Original Message-----
> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Friday, May 10, 2024 9:03 AM
> To: Geethasowjanya Akula <gakula@...vell.com>
> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.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 v4 09/10] octeontx2-pf: Add
> representors for sdp MAC
> 
> ----------------------------------------------------------------------
> On Tue, 7 May 2024 22:09:20 +0530 Geetha sowjanya wrote:
> > RPM and SDP MACs support
> > ingress/egress pkt IO on interfaces with different set of capabilities
> > like interface modes.
> 
> This doesn't explain much, what's "interface modes"?
Our hardware has multiple MACs RPM, SDP and LBK.
Also, hardware doesn't have an internal switch.
LBK is a loopback mac which punts egress pkts back to ingress pipeline.
RPM and SDP MACs are the ones which does IO to outside of system each supporting different modes ranging from 10/100/1000BaseX to 100Gbps KR modes.