[ofa-general] [RFC v2 PATCH 0/5] rdma/cma: RDMA_ALIGN_WITH_NETDEVICE ha mode

Or Gerlitz ogerlitz at voltaire.com
Thu May 15 07:21:25 PDT 2008


main changes from v1:

- added new event RDMA_CM_EVENT_NETDEV_CHANGE
- took the approach of notifying the user vs disconnecting the ID
- this change bought us support also for the datagram (unconnected) services!

I prefer to to go with affiliated event approach, from the following reasons:

1) the rdma-cm consumer ULP is not actually exposed to neighbours/routes and netdevices,
i.e it knows the destination IP address and the rdma-cm does all the interaction with the
network stack needed for the local (device/gid|mac/port/pkey) and remote (gid|mac) address
resolutions, so in that respect this change follows this scheme.

2) its much harder for user space ULPs to get network events, but they can easily get rdma-cm events.


Or



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