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Dell S6000: PCIe Gen1 settings #8663

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Oct 5, 2021
Merged

Dell S6000: PCIe Gen1 settings #8663

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56 changes: 54 additions & 2 deletions platform/broadcom/sonic-platform-modules-dell/s6000/scripts/s6000_platform.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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() {
Expand All @@ -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
Expand Down