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, 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 pkey appropriately, and fixes up the call sites. The
next step will be to add a way to configure the scope for an ipoib device.
projects / ~shefty / rdma-dev.git / commit