Steve Wise wrote:
if_index is constant once the device is created until it is
destroyed. Renames do not affect if_index. I suppose it is possible
that with enough device creation/destruction if_index will wrap, and
then it won't have port1 < port2 anymore..
Jason
Perhaps the best way is to add a new sysfs entry that makes it explicit
which if_index maps to which rdma device port. Or maybe add if_index to
the ibv_port_attr structure...
So we could add a net:if_name link in
/sys/class/infiniband/<device_name>/ports/<port_num>/
Just like the net:if_name link that's currently in:
/sys/class/infiniband_verbs/uverbs_<device_index>/device/
Steve.
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