tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 ##############################################################################
   5 # Defines
   6
   7 if [[ ! -v MLXSW_CHIP ]]; then
   8         MLXSW_CHIP=$(devlink -j dev info $DEVLINK_DEV | jq -r '.[][]["driver"]')
   9         if [ -z "$MLXSW_CHIP" ]; then
  10                 echo "SKIP: Device $DEVLINK_DEV doesn't support devlink info command"
  11                 exit 1
  12         fi
  13 fi
  14
  15 MLXSW_SPECTRUM_REV=$(case $MLXSW_CHIP in
  16                              mlxsw_spectrum)
  17                                      echo 1 ;;
  18                              mlxsw_spectrum*)
  19                                      echo ${MLXSW_CHIP#mlxsw_spectrum} ;;
  20                              *)
  21                                      echo "Couldn't determine Spectrum chip revision." \
  22                                           > /dev/stderr ;;
  23                      esac)
  24
  25 mlxsw_on_spectrum()
  26 {
  27         local rev=$1; shift
  28         local op="=="
  29         local rev2=${rev%+}
  30
  31         if [[ $rev2 != $rev ]]; then
  32                 op=">="
  33         fi
  34
  35         ((MLXSW_SPECTRUM_REV $op rev2))
  36 }
  37
  38 __mlxsw_only_on_spectrum()
  39 {
  40         local rev=$1; shift
  41         local caller=$1; shift
  42         local src=$1; shift
  43
  44         if ! mlxsw_on_spectrum "$rev"; then
  45                 log_test_skip $src:$caller "(Spectrum-$rev only)"
  46                 return 1
  47         fi
  48 }
  49
  50 mlxsw_only_on_spectrum()
  51 {
  52         local caller=${FUNCNAME[1]}
  53         local src=${BASH_SOURCE[1]}
  54         local rev
  55
  56         for rev in "$@"; do
  57                 if __mlxsw_only_on_spectrum "$rev" "$caller" "$src"; then
  58                         return 0
  59                 fi
  60         done
  61
  62         return 1
  63 }
  64
  65 mlxsw_max_descriptors_get()
  66 {
  67         local spectrum_rev=$MLXSW_SPECTRUM_REV
  68
  69         case $spectrum_rev in
  70         1) echo 81920 ;;
  71         2) echo 136960 ;;
  72         3) echo 204800 ;;
  73         4) echo 220000 ;;
  74         *) echo "Unknown max descriptors for chip revision." > /dev/stderr
  75            return 1 ;;
  76         esac
  77 }