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authorMoni Shoua <monis@voltaire.com>2009-09-15 02:37:40 -0700
committerDavid S. Miller <davem@davemloft.net>2009-09-15 02:37:40 -0700
commit75c78500ddad74b229cd0691496b8549490496a2 (patch)
tree5249219d68627421e4717c4e8f03f8b4bbad2e92 /include/net
parent481a8199142c050b72bff8a1956a49fd0a75bbe0 (diff)
downloadop-kernel-dev-75c78500ddad74b229cd0691496b8549490496a2.zip
op-kernel-dev-75c78500ddad74b229cd0691496b8549490496a2.tar.gz
bonding: remap muticast addresses without using dev_close() and dev_open()
This patch fixes commit e36b9d16c6a6d0f59803b3ef04ff3c22c3844c10. The approach there is to call dev_close()/dev_open() whenever the device type is changed in order to remap the device IP multicast addresses to HW multicast addresses. This approach suffers from 2 drawbacks: *. It assumes tha the device is UP when calling dev_close(), or otherwise dev_close() has no affect. It is worth to mention that initscripts (Redhat) and sysconfig (Suse) doesn't act the same in this matter. *. dev_close() has other side affects, like deleting entries from the routing table, which might be unnecessary. The fix here is to directly remap the IP multicast addresses to HW multicast addresses for a bonding device that changes its type, and nothing else. Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Moni Shoua <monis@voltaire.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/addrconf.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 7b55ab2..0f7c378 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -143,6 +143,8 @@ extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr
extern int ipv6_dev_mc_dec(struct net_device *dev, const struct in6_addr *addr);
extern void ipv6_mc_up(struct inet6_dev *idev);
extern void ipv6_mc_down(struct inet6_dev *idev);
+extern void ipv6_mc_unmap(struct inet6_dev *idev);
+extern void ipv6_mc_remap(struct inet6_dev *idev);
extern void ipv6_mc_init_dev(struct inet6_dev *idev);
extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
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