linux-zen-desktop/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
##############################################################################
# Defines
if [[ ! -v MLXSW_CHIP ]]; then
MLXSW_CHIP=$(devlink -j dev info $DEVLINK_DEV | jq -r '.[][]["driver"]')
if [ -z "$MLXSW_CHIP" ]; then
echo "SKIP: Device $DEVLINK_DEV doesn't support devlink info command"
exit 1
fi
fi
MLXSW_SPECTRUM_REV=$(case $MLXSW_CHIP in
mlxsw_spectrum)
echo 1 ;;
mlxsw_spectrum*)
echo ${MLXSW_CHIP#mlxsw_spectrum} ;;
*)
echo "Couldn't determine Spectrum chip revision." \
> /dev/stderr ;;
esac)
mlxsw_on_spectrum()
{
local rev=$1; shift
local op="=="
local rev2=${rev%+}
if [[ $rev2 != $rev ]]; then
op=">="
fi
((MLXSW_SPECTRUM_REV $op rev2))
}
__mlxsw_only_on_spectrum()
{
local rev=$1; shift
local caller=$1; shift
local src=$1; shift
if ! mlxsw_on_spectrum "$rev"; then
log_test_skip $src:$caller "(Spectrum-$rev only)"
return 1
fi
}
mlxsw_only_on_spectrum()
{
local caller=${FUNCNAME[1]}
local src=${BASH_SOURCE[1]}
local rev
for rev in "$@"; do
if __mlxsw_only_on_spectrum "$rev" "$caller" "$src"; then
return 0
fi
done
return 1
}
mlxsw_max_descriptors_get()
{
local spectrum_rev=$MLXSW_SPECTRUM_REV
case $spectrum_rev in
1) echo 81920 ;;
2) echo 136960 ;;
3) echo 204800 ;;
4) echo 220000 ;;
*) echo "Unknown max descriptors for chip revision." > /dev/stderr
return 1 ;;
esac
}