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[platform]: Disable interrupt for intel i2c-i801 driver (#16309)

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On S6100 we are seeing almost 100K interrupts per second on intels i801 SMBUS controller which affects systems performance.

We now disable the i801 driver interrupt and instead enable polling

Microsoft ADO (number only): 24910530

How I did it
Disable the interrupt by passing the interrupt disable feature argument to i2c-i801 driver

How to verify it
This fix is NOT applicable for ARM based platforms. Applicable only for intel based platforms:-

- On SN2700 its already disabled in Mellanox hw-mgmt
- Celestica DX010 and E1031
- Dell S6100 verified the interrupts are no longer incrementing.
- Arista 7260CX3

Signed-off-by: Prince George <prgeor@microsoft.com>
This commit is contained in:
Prince George 2023-09-05 10:23:57 -07:00 committed by mssonicbld
parent f57a3e64d0
commit d5a96f69f1
4 changed files with 4 additions and 3 deletions
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2
device/celestica/x86_64-cel_e1031-r0/installer.conf
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@ -1,4 +1,4 @@
CONSOLE_PORT=0x2f8 CONSOLE_PORT=0x2f8
CONSOLE_DEV=1 CONSOLE_DEV=1
CONSOLE_SPEED=9600 CONSOLE_SPEED=9600
ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="module_blacklist=gpio_ich processor.max_cstate=1 intel_idle.max_cstate=0" ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="module_blacklist=gpio_ich processor.max_cstate=1 intel_idle.max_cstate=0 i2c-i801.disable_features=0x10"

2
device/celestica/x86_64-cel_seastone-r0/installer.conf
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@ -1,3 +1,3 @@
CONSOLE_PORT=0x3f8 CONSOLE_PORT=0x3f8
CONSOLE_DEV=0 CONSOLE_DEV=0
ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="module_blacklist=gpio_ich" ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="module_blacklist=gpio_ich i2c-i801.disable_features=0x10"

2
device/dell/x86_64-dell_s6100_c2538-r0/installer.conf
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@ -1,3 +1,3 @@
CONSOLE_PORT=0x2f8 CONSOLE_PORT=0x2f8
CONSOLE_DEV=1 CONSOLE_DEV=1
ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="module_blacklist=gpio_ich,wdat_wdt acpi_no_watchdog=1 nos-config-part=/dev/sda12 logs_inram=on" ONIE_PLATFORM_EXTRA_CMDLINE_LINUX="module_blacklist=gpio_ich,wdat_wdt acpi_no_watchdog=1 nos-config-part=/dev/sda12 logs_inram=on i2c-i801.disable_features=0x10"

1
files/Aboot/boot0.j2
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@ -503,6 +503,7 @@ write_platform_specific_cmdline() {
aboot_machine=arista_7260cx3_64 aboot_machine=arista_7260cx3_64
flash_size=28000 flash_size=28000
cmdline_add logs_inram=on cmdline_add logs_inram=on
cmdline_add i2c-i801.disable_features=0x10
fi fi
if [ "$sid" = "Alhambra" ]; then if [ "$sid" = "Alhambra" ]; then
aboot_machine=arista_7170_64c aboot_machine=arista_7170_64c