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Dell S6000: PCIe Gen1 settings (#8663)

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Why I did it
PCIe Gen1 settings was needed for Dell S6000 device.

How I did it
Modified from Gen2 to Gen 1 speed for Dell S6000 PCIe devices

How to verify it
Check lspci output, verify the syslogs
This commit is contained in:
Aravind Mani 2021-10-05 10:17:26 -07:00 committed by GitHub
parent 677f31dac3
commit b7d49b0a0c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 54 additions and 2 deletions
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56
platform/broadcom/sonic-platform-modules-dell/s6000/scripts/s6000_platform.sh
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@ -11,6 +11,57 @@
# Short-Description: Setup S6000 board.
### END INIT INFO
check_speed()
{
if [ $1 == 1 ];
then
echo "2.5GT/s"
else
echo "5GT/s"
fi
}
change_pcie_speed()
{
echo "---------Change Dell S6000 PCIe link speed-------"
dev_array=(00\:01.0 01\:00.0
00\:02.0 02\:00.0)
speed=$1
for dev in "${dev_array[@]}"
do
if [ ! -e "/sys/bus/pci/devices/$dev" ]; then
dev="0000:$dev"
fi
if [ ! -e "/sys/bus/pci/devices/$dev" ]; then
echo "Error: device $dev not found"
return
fi
lc=$(setpci -s $dev CAP_EXP+0c.L)
ls=$(setpci -s $dev CAP_EXP+12.W)
cur_speed=$(("0x$ls" & 0xF))
echo "Device:" $dev "Current link speed:" $(check_speed "$cur_speed")
lc2=$(setpci -s $dev CAP_EXP+30.L)
lc2n=$(printf "%08x" $((("0x$lc2" & 0xFFFFFFF0) | $speed)))
setpci -s $dev CAP_EXP+30.L=$lc2n
lc=$(setpci -s $dev CAP_EXP+10.L)
lcn=$(printf "%08x" $(("0x$lc" | 0x20)))
setpci -s $dev CAP_EXP+10.L=$lcn
sleep 0.1
ls=$(setpci -s $dev CAP_EXP+12.W)
link_sp=$(("0x$ls" & 0xF))
echo "New link speed:" $(check_speed "$link_sp")
done
}
add_i2c_devices() {
echo 24c02 0x50 > /sys/class/i2c-adapter/i2c-1/new_device
@ -77,9 +128,9 @@ switch_board_qsfp_lpmode() {
install_python_api_package() {
device="/usr/share/sonic/device"
platform=$(/usr/local/bin/sonic-cfggen -H -v DEVICE_METADATA.localhost.platform)
rv=$(pip install $device/$platform/sonic_platform-1.0-py2-none-any.whl)
rv=$(pip3 install $device/$platform/sonic_platform-1.0-py3-none-any.whl)
}
remove_python_api_package() {
@ -103,7 +154,8 @@ if [[ "$1" == "init" ]]; then
modprobe i2c_mux_gpio
modprobe dell_s6000_platform
install_python_api_package
#Use 1 for PCIe Gen1, 2 for PCIe Gen2
change_pcie_speed 1
add_i2c_devices
/usr/local/bin/set-fan-speed 15000