lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

bridge: add support for user mode STP

Browse Source 
This patchset based on work by Aji_Srinivas@emc.com provides allows
spanning tree to be controled from userspace.  Like hotplug, it
uses call_usermodehelper when spanning tree is enabled so there
is no visible API change. If call to start usermode STP fails
it falls back to existing kernel STP.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
This commit is contained in:
Stephen Hemminger
2007-03-21 14:22:44 -07:00
committed by David S. Miller
parent 9cf637473c
commit 9cde070874
8 changed files with 96 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
net/bridge/br_stp.c
View File

@ -370,11 +370,11 @@ static void br_make_blocking(struct net_bridge_port *p)
static void br_make_forwarding(struct net_bridge_port *p)
{
if (p->state == BR_STATE_BLOCKING) {
if (p->br->stp_enabled) {
if (p->br->stp_enabled == BR_KERNEL_STP)
p->state = BR_STATE_LISTENING;
} else {
else
p->state = BR_STATE_LEARNING;
}
br_log_state(p);
mod_timer(&p->forward_delay_timer, jiffies + p->br->forward_delay); }
}
@ -384,6 +384,10 @@ void br_port_state_selection(struct net_bridge *br)
{
struct net_bridge_port *p;
/* Don't change port states if userspace is handling STP */
if (br->stp_enabled == BR_USER_STP)
return;
list_for_each_entry(p, &br->port_list, list) {
if (p->state != BR_STATE_DISABLED) {
if (p->port_no == br->root_port) {