staging: lustre: Dynamic LNet Configuration (DLC) dynamic routing
This is the second patch of a set of patches that enables DLC.
This patch adds the following features to LNET. Currently these
features are not driven by user space.
- Enabling Routing on Demand. The default number of router
buffers are allocated.
- Disable Routing on demand. Unused router buffers are freed and
used router buffers are freed when they are no longer in use.
The following time routing is enabled the default router buffer
values are used. It has been decided that remembering the
user set router buffer values should be remembered and re-set
by user space scripts.
- Increase the number of router buffers on demand, by allocating
new ones.
- Decrease the number of router buffers. Exccess buffers are freed
if they are not in use. Otherwise they are freed once they are
no longer in use.
Signed-off-by: Amir Shehata <amir.shehata@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2456
Change-Id: Id07d4ad424d8f5ba72475d4149380afe2ac54e77
Reviewed-on: http://review.whamcloud.com/9831
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5 files changed