netdev - Re: [PATCH net-next v9 02/10] selftests: forwarding: ethtool_mm: fall back to aggregate if device does not report pMAC stats

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Date: Mon, 18 Dec 2023 14:39:03 +0200
From: Roger Quadros <rogerq@...nel.org>
To: Vladimir Oltean <vladimir.oltean@....com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, shuah@...nel.org, s-vadapalli@...com,
 r-gunasekaran@...com, vigneshr@...com, srk@...com, horms@...nel.org,
 p-varis@...com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-kselftest@...r.kernel.org
Subject: Re: [PATCH net-next v9 02/10] selftests: forwarding: ethtool_mm: fall
 back to aggregate if device does not report pMAC stats



On 15/12/2023 19:27, Vladimir Oltean wrote:
> On Fri, Dec 15, 2023 at 03:20:40PM +0200, Roger Quadros wrote:
>> diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
>> index 8f6ca458af9a..763c262a3453 100755
>> --- a/tools/testing/selftests/net/forwarding/lib.sh
>> +++ b/tools/testing/selftests/net/forwarding/lib.sh
>> @@ -146,6 +146,15 @@ check_ethtool_mm_support()
>>  	fi
>>  }
>>  
>> +check_ethtool_pmac_std_stats_support()
>> +{
>> +	local dev=$1; shift
>> +	local grp=$1; shift
>> +
>> +	[ 0 -ne $(ethtool --json -S $dev --all-groups --src pmac 2>/dev/null \
>> +		| jq '.[]."$grp" | length') ]
> 
> This is broken. $grp inside single quotes will search for the plain-text
> "$grp" string, not for the $grp bash variable. Use ".[].\"$grp\" | length".
> 

Thanks for catching this. Will fix in next spin.

> $ ./ethtool_mm.sh eno0 swp0
> eno0 does not report pMAC statistics, falling back to aggregate
> swp0 does not report pMAC statistics, falling back to aggregate
> $ ethtool -S swp0 --all-groups --src pmac
> Standard stats for swp0:
> eth-phy-SymbolErrorDuringCarrier: 0
> eth-mac-FramesTransmittedOK: 90017
> eth-mac-FramesReceivedOK: 90033
> eth-mac-FrameCheckSequenceErrors: 0
> eth-mac-AlignmentErrors: 0
> eth-mac-OctetsTransmittedOK: 9181138
> eth-mac-OctetsReceivedOK: 9182112
> eth-mac-MulticastFramesXmittedOK: 17
> eth-mac-BroadcastFramesXmittedOK: 90000
> eth-mac-MulticastFramesReceivedOK: 33
> eth-mac-BroadcastFramesReceivedOK: 90000
> eth-mac-FrameTooLongErrors: 0
> eth-ctrl-MACControlFramesReceived: 0
> rmon-etherStatsUndersizePkts: 0
> rmon-etherStatsOversizePkts: 0
> rmon-etherStatsFragments: 0
> rmon-etherStatsJabbers: 0
> rx-rmon-etherStatsPkts64to64Octets: 33
> rx-rmon-etherStatsPkts65to127Octets: 90000
> rx-rmon-etherStatsPkts128to255Octets: 0
> rx-rmon-etherStatsPkts256to511Octets: 0
> rx-rmon-etherStatsPkts512to1023Octets: 0
> rx-rmon-etherStatsPkts1024to1526Octets: 0
> rx-rmon-etherStatsPkts1527to65535Octets: 0
> tx-rmon-etherStatsPkts64to64Octets: 12
> tx-rmon-etherStatsPkts65to127Octets: 90005
> tx-rmon-etherStatsPkts128to255Octets: 0
> tx-rmon-etherStatsPkts256to511Octets: 0
> tx-rmon-etherStatsPkts512to1023Octets: 0
> tx-rmon-etherStatsPkts1024to1526Octets: 0
> tx-rmon-etherStatsPkts1527to65535Octets: 0
> 
>> +}
>> +
>>  check_locked_port_support()
>>  {
>>  	if ! bridge -d link show | grep -q " locked"; then
>> -- 
>> 2.34.1
>>

-- 
cheers,
-roger