[ofw] post send in kernel mode

[Tzachi Dar]

What exactly are you loooking for?

If the only thing is given an ip adreses gate the remote mac (GID) and
the interface to work on, than I guess this can be done.

Thanks
Tzachi 

-----Original Message-----
From: Sean Hefty [mailto:sean.hefty at intel.com] 
Sent: Tuesday, August 25, 2009 1:44 AM
To: Tzachi Dar; Richard Frank
Cc: ofw at lists.openfabrics.org
Subject: RE: [ofw] post send in kernel mode

>But if I understand your logic than what you realy have is a process in

>user mode. This process wants to send data. I think that what you want 
>to do is 1) move from user to kernel. 2) register the data with the hca
>(fmr?) or copy it to an already registered buffer. 3) send the data.
>What advantage does this have over sending directly from the user?

The real problem is that there are not sufficient kernel interfaces to
support the rdma cm pre-2008.  Prasanna was suggesting to establish the
connection from userspace, where there is support, but do everything
else in the kernel.  (If I finally understood it correctly.)

Maybe ipoib can provide the necessary kernel interfaces for rdma-cm
support?

- Sean