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

IPoIB: improve IPv4/IPv6 to IB mcast mapping functions

Browse Source 
An IPoIB subnet on an IB fabric that spans multiple IB subnets can't
use link-local scope in multicast GIDs.  The existing routines that
map IP/IPv6 multicast addresses into IB link-level addresses hard-code
the scope to link-local, and they also leave the partition key field
uninitialised.  This patch adds a parameter (the link-level broadcast
address) to the mapping routines, allowing them to initialise both the
scope and the P_Key appropriately, and fixes up the call sites.

The next step will be to add a way to configure the scope for an IPoIB
interface.

Signed-off-by: Rolf Manderscheid <rvm@obsidianresearch.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Rolf Manderscheid
2007-12-10 13:38:41 -07:00
committed by Roland Dreier
parent 755807a296
commit a9e527e3f9
6 changed files with 16 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -788,10 +788,6 @@ void ipoib_mcast_restart_task(struct work_struct *work)
memcpy(mgid.raw, mclist->dmi_addr + 4, sizeof mgid);
/* Add in the P_Key */
mgid.raw[4] = (priv->pkey >> 8) & 0xff;
mgid.raw[5] = priv->pkey & 0xff;
mcast = __ipoib_mcast_find(dev, &mgid);
if (!mcast || test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
struct ipoib_mcast *nmcast;