DellEMC S6100 I2C Enumeration Segregation (#4312)
This commit is contained in:
Santhosh Kumar T
GitHub
parent
e45d07baa3
commit
12291b276b
@ -1,5 +1,6 @@
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s6100/scripts/iom_power_*.sh usr/local/bin
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s6100/scripts/s6100_platform.sh usr/local/bin
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s6100/scripts/s6100_i2c_enumeration.sh usr/local/bin
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common/dell_i2c_utils.sh usr/local/bin
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common/io_rd_wr.py usr/local/bin
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common/nvram_rd_wr.py usr/local/bin
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@ -17,6 +18,7 @@ s6100/scripts/sensors usr/bin
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s6100/systemd/platform-modules-s6100.service etc/systemd/system
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s6100/systemd/s6100-lpc-monitor.service etc/systemd/system
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s6100/systemd/s6100-reboot-cause.service etc/systemd/system
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s6100/systemd/s6100-i2c-enumerate.service etc/systemd/system
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tools/flashrom/flashrom usr/local/bin/
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common/fw-updater usr/local/bin
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common/onie_mode_set usr/local/bin
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@ -0,0 +1,263 @@
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#!/bin/bash
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### DellEMC S6100 I2C MUX Enumeration script
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source dell_i2c_utils.sh
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init_devnum() {
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found=0
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for devnum in 0 1; do
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devname=`cat /sys/bus/i2c/devices/i2c-${devnum}/name`
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# iSMT adapter can be at either dffd0000 or dfff0000
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if [[ $devname == 'SMBus iSMT adapter at '* ]]; then
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found=1
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break
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fi
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done
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[[ $found -eq 0 ]] && echo "cannot find iSMT" && exit 1
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}
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# Attach/Detach CPU board mux @ 0x70
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cpu_board_mux() {
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case $1 in
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"new_device") i2c_mux_create pca9547 0x70 $devnum 2
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;;
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"delete_device") i2c_mux_delete 0x70 $devnum
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;;
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*) echo "s6100_platform: cpu_board_mux: invalid command !"
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;;
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esac
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}
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# Attach/Detach Switchboard MUX @ 0x71
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switch_board_mux() {
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case $1 in
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"new_device") i2c_mux_create pca9548 0x71 4 10
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;;
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"delete_device") i2c_mux_delete 0x71 4
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;;
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*) echo "s6100_platform: switch_board_mux : invalid command !"
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;;
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esac
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}
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# Attach/Detach syseeprom on CPU board
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sys_eeprom() {
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case $1 in
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"new_device") i2c_config "echo 24c02 0x50 > /sys/bus/i2c/devices/i2c-2/$1"
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;;
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"delete_device") i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-2/$1"
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;;
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*) echo "s6100_platform: sys_eeprom : invalid command !"
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;;
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esac
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}
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#Attach/Detach eeprom on each IOM
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switch_board_eeprom() {
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case $1 in
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"new_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo 24c02 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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"delete_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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*) echo "s6100_platform: switch_board_eeprom : invalid command !"
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;;
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esac
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}
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#Attach/Detach CPLD devices to drivers for each IOM
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switch_board_cpld() {
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case $1 in
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"new_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo dell_s6100_iom_cpld 0x3e > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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"delete_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo 0x3e > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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*) echo "s6100_platform: switch_board_cpld : invalid command !"
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;;
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esac
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}
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#Attach/Detach the MUX connecting all QSFPs on each IOM @0x71 and 0x72
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switch_board_qsfp_mux() {
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case $1 in
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"new_device")
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# The mux for the QSFPs spawn {18..25}, {26..33}... {74..81}
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# starting at chennel 18 and 16 channels per IOM.
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channel_first=18
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for ((i=9;i>=6;i--));
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do
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# 0x71 mux on the IOM 1
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mux_index=$(expr $i - 5)
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echo "Attaching PCA9548 $mux_index"
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i2c_mux_create pca9548 0x71 $i $channel_first
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i2c_mux_create pca9548 0x72 $i $(expr $channel_first + 8)
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channel_first=$(expr $channel_first + 16)
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done
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;;
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"delete_device")
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for ((i=9;i>=6;i--));
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do
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# 0x71 mux on the IOM 1
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mux_index=$(expr $i - 5)
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echo "Detaching PCA9548 $mux_index"
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i2c_mux_delete 0x71 $i
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i2c_mux_delete 0x72 $i
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done
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;;
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*) echo "s6100_platform: switch_board_qsfp_mux: invalid command !"
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;;
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esac
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}
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#Attach/Detach the SFP modules on PCA9548_2
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switch_board_sfp() {
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case $1 in
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"new_device") i2c_config "echo optoe2 0x50 > /sys/bus/i2c/devices/i2c-11/$1"
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i2c_config "echo optoe2 0x50 > /sys/bus/i2c/devices/i2c-12/$1"
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;;
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"delete_device") i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-11/$1"
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i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-12/$1"
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;;
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*) echo "s6100_platform: switch_board_sfp: invalid command !"
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;;
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esac
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}
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#Add/Delete ($1) a range ($2..$3) of QSFPs
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qsfp_device_mod() {
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case $1 in
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"new_device") for ((i=$2;i<=$3;i++));
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do
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i2c_config "echo optoe1 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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"delete_device") for ((i=$2;i<=$3;i++));
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do
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i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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*) echo "s6100_platform: qsfp_device_mod: invalid command $1:$2,$3!"
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;;
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esac
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}
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# Attach/Detach 16 instances of QSFP ports on each IO modules
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# eeprom can dump data using below command
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switch_board_qsfp() {
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if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-18"; then
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qsfp_device_mod $1 18 33
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fi
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if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-34"; then
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qsfp_device_mod $1 34 49
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fi
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if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-50"; then
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qsfp_device_mod $1 50 65
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fi
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if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-66"; then
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qsfp_device_mod $1 66 81
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fi
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}
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# Enable/Disable low power mode on all QSFP ports
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switch_board_qsfp_lpmode() {
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case $1 in
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"enable") value=0xffff
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;;
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"disable") value=0x0
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;;
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*) echo "s6100_platform: switch_board_qsfp_lpmode: invalid command $1!"
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return
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;;
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esac
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echo $value > /sys/class/i2c-adapter/i2c-14/14-003e/qsfp_lpmode
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echo $value > /sys/class/i2c-adapter/i2c-15/15-003e/qsfp_lpmode
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echo $value > /sys/class/i2c-adapter/i2c-16/16-003e/qsfp_lpmode
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echo $value > /sys/class/i2c-adapter/i2c-17/17-003e/qsfp_lpmode
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}
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# Enable/Disable xcvr presence interrupts
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xcvr_presence_interrupts() {
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case $1 in
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"enable")
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for ((i=14;i<=17;i++));
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do
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echo 0x0 > /sys/class/i2c-adapter/i2c-$i/$i-003e/qsfp_abs_mask
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done
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;;
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"disable")
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for ((i=14;i<=17;i++));
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do
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echo 0xffff > /sys/class/i2c-adapter/i2c-$i/$i-003e/qsfp_abs_mask
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done
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;;
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*) echo "s6100_platform: xcvr_presence_interrupts: invalid command !"
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;;
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esac
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}
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# Reset the mux tree
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reset_muxes() {
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local i
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# Reset the IOM muxes (if they have been already instantiated)
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for ((i=14;i<=17;i++));
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do
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if [[ -e /sys/class/i2c-adapter/i2c-$i/$i-003e ]]; then
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echo 0xfc > /sys/class/i2c-adapter/i2c-$i/$i-003e/sep_reset
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echo 0xff > /sys/class/i2c-adapter/i2c-$i/$i-003e/sep_reset
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fi
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done
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# Reset the switch card PCA9548A
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io_rd_wr.py --set --val 0xef --offset 0x110
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io_rd_wr.py --set --val 0xff --offset 0x110
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# Reset the CPU Card PCA9547
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io_rd_wr.py --set --val 0xfd --offset 0x20b
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io_rd_wr.py --set --val 0xff --offset 0x20b
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}
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init_devnum
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if [[ "$1" == "init" ]]; then
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cpu_board_mux "new_device"
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switch_board_mux "new_device"
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sys_eeprom "new_device"
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switch_board_eeprom "new_device"
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switch_board_cpld "new_device"
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switch_board_qsfp_mux "new_device"
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switch_board_sfp "new_device"
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switch_board_qsfp "new_device"
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switch_board_qsfp_lpmode "disable"
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xcvr_presence_interrupts "enable"
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elif [[ "$1" == "deinit" ]]; then
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xcvr_presence_interrupts "disable"
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switch_board_sfp "delete_device"
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switch_board_cpld "delete_device"
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switch_board_eeprom "delete_device"
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switch_board_mux "delete_device"
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sys_eeprom "delete_device"
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switch_board_qsfp "delete_device"
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switch_board_qsfp_mux "delete_device"
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cpu_board_mux "delete_device"
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fi
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@ -2,241 +2,6 @@
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#platform init script for Dell S6100
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source dell_i2c_utils.sh
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init_devnum() {
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found=0
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for devnum in 0 1; do
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devname=`cat /sys/bus/i2c/devices/i2c-${devnum}/name`
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# iSMT adapter can be at either dffd0000 or dfff0000
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if [[ $devname == 'SMBus iSMT adapter at '* ]]; then
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found=1
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break
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fi
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done
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[[ $found -eq 0 ]] && echo "cannot find iSMT" && exit 1
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}
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# Attach/Detach CPU board mux @ 0x70
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cpu_board_mux() {
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case $1 in
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"new_device") i2c_mux_create pca9547 0x70 $devnum 2
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;;
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"delete_device") i2c_mux_delete 0x70 $devnum
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;;
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*) echo "s6100_platform: cpu_board_mux: invalid command !"
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;;
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esac
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}
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# Attach/Detach Switchboard MUX @ 0x71
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switch_board_mux() {
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case $1 in
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"new_device") i2c_mux_create pca9548 0x71 4 10
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;;
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"delete_device") i2c_mux_delete 0x71 4
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;;
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*) echo "s6100_platform: switch_board_mux : invalid command !"
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;;
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esac
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}
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# Attach/Detach syseeprom on CPU board
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sys_eeprom() {
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case $1 in
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"new_device") i2c_config "echo 24c02 0x50 > /sys/bus/i2c/devices/i2c-2/$1"
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;;
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"delete_device") i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-2/$1"
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;;
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*) echo "s6100_platform: sys_eeprom : invalid command !"
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;;
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esac
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}
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#Attach/Detach eeprom on each IOM
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switch_board_eeprom() {
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case $1 in
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"new_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo 24c02 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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"delete_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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*) echo "s6100_platform: switch_board_eeprom : invalid command !"
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;;
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esac
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}
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#Attach/Detach CPLD devices to drivers for each IOM
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switch_board_cpld() {
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case $1 in
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"new_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo dell_s6100_iom_cpld 0x3e > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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"delete_device")
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for ((i=14;i<=17;i++));
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do
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i2c_config "echo 0x3e > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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*) echo "s6100_platform: switch_board_cpld : invalid command !"
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;;
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esac
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}
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#Attach/Detach the MUX connecting all QSFPs on each IOM @0x71 and 0x72
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switch_board_qsfp_mux() {
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case $1 in
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"new_device")
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# The mux for the QSFPs spawn {18..25}, {26..33}... {74..81}
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# starting at chennel 18 and 16 channels per IOM.
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channel_first=18
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for ((i=9;i>=6;i--));
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do
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# 0x71 mux on the IOM 1
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mux_index=$(expr $i - 5)
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echo "Attaching PCA9548 $mux_index"
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i2c_mux_create pca9548 0x71 $i $channel_first
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i2c_mux_create pca9548 0x72 $i $(expr $channel_first + 8)
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channel_first=$(expr $channel_first + 16)
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done
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;;
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"delete_device")
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for ((i=9;i>=6;i--));
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do
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# 0x71 mux on the IOM 1
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mux_index=$(expr $i - 5)
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echo "Detaching PCA9548 $mux_index"
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i2c_mux_delete 0x71 $i
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i2c_mux_delete 0x72 $i
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done
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;;
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*) echo "s6100_platform: switch_board_qsfp_mux: invalid command !"
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;;
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esac
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}
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#Attach/Detach the SFP modules on PCA9548_2
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switch_board_sfp() {
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case $1 in
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"new_device") i2c_config "echo optoe2 0x50 > /sys/bus/i2c/devices/i2c-11/$1"
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i2c_config "echo optoe2 0x50 > /sys/bus/i2c/devices/i2c-12/$1"
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;;
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"delete_device") i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-11/$1"
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i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-12/$1"
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;;
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*) echo "s6100_platform: switch_board_sfp: invalid command !"
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;;
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esac
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}
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#Add/Delete ($1) a range ($2..$3) of QSFPs
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qsfp_device_mod() {
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case $1 in
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"new_device") for ((i=$2;i<=$3;i++));
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do
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i2c_config "echo optoe1 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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"delete_device") for ((i=$2;i<=$3;i++));
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do
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i2c_config "echo 0x50 > /sys/bus/i2c/devices/i2c-$i/$1"
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done
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;;
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*) echo "s6100_platform: qsfp_device_mod: invalid command $1:$2,$3!"
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;;
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esac
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}
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# Attach/Detach 16 instances of QSFP ports on each IO modules
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# eeprom can dump data using below command
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switch_board_qsfp() {
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if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-18"; then
|
||||
qsfp_device_mod $1 18 33
|
||||
fi
|
||||
|
||||
if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-34"; then
|
||||
qsfp_device_mod $1 34 49
|
||||
fi
|
||||
|
||||
if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-50"; then
|
||||
qsfp_device_mod $1 50 65
|
||||
fi
|
||||
|
||||
if i2c_poll_bus_exists "/sys/bus/i2c/devices/i2c-66"; then
|
||||
qsfp_device_mod $1 66 81
|
||||
fi
|
||||
}
|
||||
|
||||
# Enable/Disable low power mode on all QSFP ports
|
||||
switch_board_qsfp_lpmode() {
|
||||
case $1 in
|
||||
"enable") value=0xffff
|
||||
;;
|
||||
"disable") value=0x0
|
||||
;;
|
||||
*) echo "s6100_platform: switch_board_qsfp_lpmode: invalid command $1!"
|
||||
return
|
||||
;;
|
||||
esac
|
||||
echo $value > /sys/class/i2c-adapter/i2c-14/14-003e/qsfp_lpmode
|
||||
echo $value > /sys/class/i2c-adapter/i2c-15/15-003e/qsfp_lpmode
|
||||
echo $value > /sys/class/i2c-adapter/i2c-16/16-003e/qsfp_lpmode
|
||||
echo $value > /sys/class/i2c-adapter/i2c-17/17-003e/qsfp_lpmode
|
||||
}
|
||||
|
||||
# Enable/Disable xcvr presence interrupts
|
||||
xcvr_presence_interrupts() {
|
||||
case $1 in
|
||||
"enable")
|
||||
for ((i=14;i<=17;i++));
|
||||
do
|
||||
echo 0x0 > /sys/class/i2c-adapter/i2c-$i/$i-003e/qsfp_abs_mask
|
||||
done
|
||||
;;
|
||||
"disable")
|
||||
for ((i=14;i<=17;i++));
|
||||
do
|
||||
echo 0xffff > /sys/class/i2c-adapter/i2c-$i/$i-003e/qsfp_abs_mask
|
||||
done
|
||||
;;
|
||||
*) echo "s6100_platform: xcvr_presence_interrupts: invalid command !"
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
# Reset the mux tree
|
||||
reset_muxes() {
|
||||
local i
|
||||
|
||||
# Reset the IOM muxes (if they have been already instantiated)
|
||||
for ((i=14;i<=17;i++));
|
||||
do
|
||||
if [[ -e /sys/class/i2c-adapter/i2c-$i/$i-003e ]]; then
|
||||
echo 0xfc > /sys/class/i2c-adapter/i2c-$i/$i-003e/sep_reset
|
||||
echo 0xff > /sys/class/i2c-adapter/i2c-$i/$i-003e/sep_reset
|
||||
fi
|
||||
done
|
||||
|
||||
# Reset the switch card PCA9548A
|
||||
io_rd_wr.py --set --val 0xef --offset 0x110
|
||||
io_rd_wr.py --set --val 0xff --offset 0x110
|
||||
|
||||
# Reset the CPU Card PCA9547
|
||||
io_rd_wr.py --set --val 0xfd --offset 0x20b
|
||||
io_rd_wr.py --set --val 0xff --offset 0x20b
|
||||
}
|
||||
|
||||
install_python_api_package() {
|
||||
device="/usr/share/sonic/device"
|
||||
platform=$(/usr/local/bin/sonic-cfggen -H -v DEVICE_METADATA.localhost.platform)
|
||||
@ -251,7 +16,6 @@ remove_python_api_package() {
|
||||
fi
|
||||
}
|
||||
|
||||
init_devnum
|
||||
|
||||
if [[ "$1" == "init" ]]; then
|
||||
modprobe i2c-dev
|
||||
@ -267,29 +31,18 @@ if [[ "$1" == "init" ]]; then
|
||||
/usr/local/bin/platform_watchdog_disable.sh
|
||||
fi
|
||||
|
||||
cpu_board_mux "new_device"
|
||||
switch_board_mux "new_device"
|
||||
sys_eeprom "new_device"
|
||||
switch_board_eeprom "new_device"
|
||||
switch_board_cpld "new_device"
|
||||
switch_board_qsfp_mux "new_device"
|
||||
switch_board_sfp "new_device"
|
||||
switch_board_qsfp "new_device"
|
||||
switch_board_qsfp_lpmode "disable"
|
||||
xcvr_presence_interrupts "enable"
|
||||
is_fast_warm=$(cat /proc/cmdline | grep SONIC_BOOT_TYPE | wc -l)
|
||||
|
||||
if [[ "$is_fast_warm" == "1" ]]; then
|
||||
systemctl start --no-block s6100-i2c-enumerate.service
|
||||
else
|
||||
systemctl start s6100-i2c-enumerate.service
|
||||
fi
|
||||
|
||||
install_python_api_package
|
||||
|
||||
elif [[ "$1" == "deinit" ]]; then
|
||||
xcvr_presence_interrupts "disable"
|
||||
switch_board_sfp "delete_device"
|
||||
switch_board_cpld "delete_device"
|
||||
switch_board_eeprom "delete_device"
|
||||
switch_board_mux "delete_device"
|
||||
sys_eeprom "delete_device"
|
||||
switch_board_qsfp "delete_device"
|
||||
switch_board_qsfp_mux "delete_device"
|
||||
cpu_board_mux "delete_device"
|
||||
/usr/local/bin/s6100_i2c_enumeration.sh deinit
|
||||
|
||||
modprobe -r dell_s6100_lpc
|
||||
modprobe -r dell_s6100_iom_cpld
|
||||
|
||||
@ -0,0 +1,12 @@
|
||||
[Unit]
|
||||
Description=Dell S6100 I2C MUX Enumeration
|
||||
Before=pmon.service
|
||||
DefaultDependencies=no
|
||||
|
||||
[Service]
|
||||
Type=oneshot
|
||||
ExecStart=/usr/local/bin/s6100_i2c_enumeration.sh init
|
||||
RemainAfterExit=no
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
Loading…
Reference in New Issue
Block a user