diff mbox series

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

Message ID 20231215132048.43727-3-rogerq@kernel.org (mailing list archive)
State New
Headers show
Series net: ethernet: am65-cpsw: Add mqprio, frame pre-emption & coalescing | expand

Commit Message

Roger Quadros Dec. 15, 2023, 1:20 p.m. UTC 
From: Vladimir Oltean <vladimir.oltean@nxp.com>

Some devices do not support individual 'pmac' and 'emac' stats.
For such devices, resort to 'aggregate' stats.

Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 tools/testing/selftests/net/forwarding/ethtool_mm.sh | 11 +++++++++++
 tools/testing/selftests/net/forwarding/lib.sh        |  9 +++++++++
 2 files changed, 20 insertions(+)

Changelog:

v9: no code change. Added Kselftest maintainer in Cc.
v8: initial commit

Comments

Vladimir Oltean Dec. 15, 2023, 5:27 p.m. UTC | #1 
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".

$ ./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
>
Roger Quadros Dec. 18, 2023, 12:39 p.m. UTC | #2 
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
>>
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/forwarding/ethtool_mm.sh b/tools/testing/selftests/net/forwarding/ethtool_mm.sh
index 6212913f4ad1..50d5bfb17ef1 100755
--- a/tools/testing/selftests/net/forwarding/ethtool_mm.sh
+++ b/tools/testing/selftests/net/forwarding/ethtool_mm.sh
@@ -25,6 +25,10 @@  traffic_test()
 	local after=
 	local delta=
 
+	if [ ${has_pmac_stats[$if]} = false ]; then
+		src="aggregate"
+	fi
+
 	before=$(ethtool_std_stats_get $if "eth-mac" "FramesTransmittedOK" $src)
 
 	$MZ $if -q -c $num_pkts -p 64 -b bcast -t ip -R $PREEMPTIBLE_PRIO
@@ -317,6 +321,13 @@  for netif in ${NETIFS[@]}; do
 		echo "SKIP: $netif does not support MAC Merge"
 		exit $ksft_skip
 	fi
+
+	if check_ethtool_pmac_std_stats_support $netif eth-mac; then
+		has_pmac_stats[$netif]=true
+	else
+		has_pmac_stats[$netif]=false
+		echo "$netif does not report pMAC statistics, falling back to aggregate"
+	fi
 done
 
 trap cleanup EXIT
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') ]
+}
+
 check_locked_port_support()
 {
 	if ! bridge -d link show | grep -q " locked"; then