Set module/kernel options from CLI
Closed, WontfixPublicENHANCEMENT
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	mrjester
	Aug 9 2016, 12:04 AM

Description

Need ability to set module and kernel options from the CLI. Hopefully, just need to set GRUB_CMDLINE_LINUX variable when running the vyatta-grub-setup script.

Details

Difficulty level: Normal (likely a few hours)
Version: 1.2.0
Why the issue appeared?: Will be filled on close

Related Objects

Mentioned In: T962: Intel 520 card requires modprobe option when using non-Intel SFP
T925: Debug image
T529: Create op command to set regulatory domain
Mentioned Here: T419: Support setting dstport for VXLAN interfaces

Event Timeline

mrjester created this task.Aug 9 2016, 12:04 AM

Reference for why and examples of how to add kernel flags.
http://people.binf.ku.dk/~hanne/b2evolution/blogs/index.php/2015/03/04/ixgbe-failed-to-load-because

syncer assigned this task to dmbaturin.Aug 21 2016, 5:03 PM

syncer triaged this task as Wishlist priority.

syncer edited projects, added VyOS 1.1.x (1.1.8); removed VyOS 1.1.x.

syncer added subscribers: VyOS 1.1.x, VyOS 2.0.x.

syncer edited projects, added VyOS 1.2 Crux; removed VyOS 1.1.x (1.1.8).Dec 14 2016, 1:42 PM

syncer edited subscribers, added: VyOS 1.2 Crux; removed: VyOS 2.0.x, VyOS 1.1.x.

T419 also needs this capability.

@dmbaturin what you think about:

set system kernel module <modulename> option <parameter> <value>
set system kernel boot <parameter> <value>

Example:

set system kernel module vxlan option udp_port 1337
set system kernel boot ixgbe.allow_unsupported_sfp 1

c-po mentioned this in T529: Create op command to set regulatory domain.Jan 29 2018, 7:35 AM

Another idea would be to wrap the system options in the python configuration script with e.g. a dictionary.

Example: set system kernel vxlan-port 1337
When using a configuration dictionary vxlan-port would be the key and the value would be a list consisting of the configuration file and options, e.g. ['/etc/modprobe.d/vyos_vxlan.conf', 'options vxlan vxlan_port=']

This results in a clean API which is applied to the appropriate filed sunder the hood as VyOS is used to do.

Another example:
set system kernel ixgbe-unsupported-sfp enable with an ixgbedictionary key has the value ['/etc/modprobe.d/vyos_ixgbe.conf', 'options ixgbe allow_unsupported_sfp=']