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selftests: Move two functions from mlxsw's qos_lib to lib

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The function humanize() is used for converting value in bits/s to a
human-friendly approximate value in Kbps, Mbps or Gbps. There is nothing
hardware-specific in that, so move the function to lib.sh.

Similarly for the rate() function, which just does a bit of math to
calculate a rate, given two counter values and a time interval.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2020-01-24 15:23:15 +02:00 committed by David S. Miller
parent a44f58c41b
commit adc6c7ec11
2 changed files with 24 additions and 24 deletions
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24
tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh
View file

@ -1,29 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
humanize()
{
local speed=$1; shift
for unit in bps Kbps Mbps Gbps; do
if (($(echo "$speed < 1024" | bc))); then
break
fi
speed=$(echo "scale=1; $speed / 1024" | bc)
done
echo "$speed${unit}"
}
rate()
{
local t0=$1; shift
local t1=$1; shift
local interval=$1; shift
echo $((8 * (t1 - t0) / interval))
}
check_rate()
{
local rate=$1; shift

24
tools/testing/selftests/net/forwarding/lib.sh
View file

@ -588,6 +588,30 @@ ethtool_stats_get()
ethtool -S $dev | grep "^ *$stat:" | head -n 1 | cut -d: -f2
}
humanize()
{
local speed=$1; shift
for unit in bps Kbps Mbps Gbps; do
if (($(echo "$speed < 1024" | bc))); then
break
fi
speed=$(echo "scale=1; $speed / 1024" | bc)
done
echo "$speed${unit}"
}
rate()
{
local t0=$1; shift
local t1=$1; shift
local interval=$1; shift
echo $((8 * (t1 - t0) / interval))
}
mac_get()
{
local if_name=$1