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| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-03-21 14:22:44 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:28:48 -0700 |
| commit | 9cde070874b822d4677f4f01fe146991785813b1 (patch) | |
| tree | 2e3a444ad82e026237ce99a4f8cad201f6ca807d /net/bridge/br_stp.c | |
| parent | 9cf637473c8535b5abe27fee79254c2d552e042a (diff) | |
| download | linux-9cde070874b822d4677f4f01fe146991785813b1.tar.gz linux-9cde070874b822d4677f4f01fe146991785813b1.tar.bz2 linux-9cde070874b822d4677f4f01fe146991785813b1.zip | |
bridge: add support for user mode STP
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>
Diffstat (limited to 'net/bridge/br_stp.c')
| -rw-r--r-- | net/bridge/br_stp.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index f9ff4d57b0d7..ebb0861e9bd5 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -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) { |