I'm submitting this on behalf of Sowmini Varadhan. Timer set to 3/11/2008.
Template Version: @(#)sac_nextcase 1.64 07/13/07 SMI
This information is Copyright 2008 Sun Microsystems
1. Introduction
1.1. Project/Component Working Name:
Brussels framework enhancements to get/set defaults
1.2. Name of Document Author/Supplier:
Author: Sowmini Varadhan
1.3 Date of This Document:
05 March, 2008
4. Technical Description
Brussels framework enhancements to get/set defaults.
----------------------------------------------------
1. Summary
----------
This case proposes enhancements to the driver administration framework
introduced by PSARC 2007/429 to get/set default values for properties
from/to the driver from the user-space libdladm library.
Release binding: minor
2. Description
--------------
The default values of some properties may not be known a priori
to dladm. For example, the default MTU of ethernet links is
1500 bytes, whereas that for InfiniBand is 2044, and the value can
vary for tunnel links. In these cases, dladm will have to send
a system call to the driver to obtain the default value of the property.
Also, the "reset-linkprop" command will have to notify the driver
that the value of the property must be reset to the default value for
that driver.
This feature is achieved by sending a DLDIOC{SET, GET}PROP ioctl
to the driver with the pr_flags set to DLD_DEFAULT. The driver
may then recognize the DLD_DEFAULT flag and return the default value
for the property (in the case of a GETPROP), or reset the property
to the default value (for SETPROP).
Interface Classification Comments
-----------------------------------------------------------------------------
DLD_DEFAULT Committed <sys/dld.h>
6. Resources and Schedule
6.4. Steering Committee requested information
6.4.1. Consolidation C-team Name:
ON
6.5. ARC review type: FastTrack
6.6. ARC Exposure: open
