netdev - HSR/PRP LRE Stats - What is the right user space interface?

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Date:   Mon, 10 Aug 2020 15:55:35 -0400
From:   Murali Karicheri <m-karicheri2@...com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: HSR/PRP LRE Stats - What is the right user space interface?

Hi Netdev experts,

IEC-62439 defines following LRE stats:-

	"lreTxA",
	"lreTxB",
	"lreTxC",
	"lreErrWrongLanA",
	"lreErrWrongLanB",
	"lreErrWrongLanC",
	"lreRxA",
	"lreRxB",
	"lreRxC",
	"lreErrorsA",
	"lreErrorsB",
	"lreErrorsC",
	"lreNodes",
	"lreProxyNodes",
	"lreUniqueRxA",
	"lreUniqueRxB",
	"lreUniqueRxC",
	"lreDuplicateRxA",
	"lreDuplicateRxB",
	"lreDuplicateRxC",
	"lreMultiRxA",
	"lreMultiRxB",
	"lreMultiRxC",
	"lreOwnRxA",
	"lreOwnRxB",

These stats are defined also in the IEC-62439 MIB definition. So
this MIB support is required in Net-SNMP and that requires a proper
kernel interface to pull the values from the HSR or PRP
LRE (Link Redundancy Entity). What is the right interface for this?
Internally TI uses /proc interface for this. But want to check with
community before sending a patch for this. One choice is ethtool for
this. Or something else? Would appreciate if someone can clarify so
that I can work towards a patch for the same.

-- 
Murali Karicheri
Texas Instruments