Multicast joins failing on 1.5-rc1? (OFED BACKPORT BUG)

Commit Message

Jason Gunthorpe Oct. 21, 2009, 10:08 p.m. UTC

None

Patch

--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -814,6 +814,13 @@  void ipoib_mcast_restart_task(struct work_struct *work)
        for (mclist = dev->mc_list; mclist; mclist = mclist->next) {
                union ib_gid mgid;
 
+               /* Work around broken ip_ib_mc_map */
+               if (mclist->dmi_addrlen == INFINIBAND_ALEN) {
+                       mclist->dmi_addr[5] = 0x10 | (dev->broadcast[5] & 0xF);
+                       mclist->dmi_addr[8] = dev->broadcast[8];
+                       mclist->dmi_addr[9] = dev->broadcast[9];
+               }
+
                if (!ipoib_mcast_addr_is_valid(mclist->dmi_addr,
                                               mclist->dmi_addrlen,
                                               dev->broadcast))