I'm puzzled...

I'm puzzled...

Posted Jan 10, 2013 16:01 UTC (Thu) by cladisch (✭ supporter ✭, #50193)
In reply to: I'm puzzled... by cruff
Parent article: Attacking full-disk encryption with Inception

Even RDMA capable interfaces require the host to set things up before the remote side can initiate a transfer.

The protocol used for FireWire disks (SBP-2) does use remote DMA (but calls it “physical DMA”).

The FireWire code has to explicitly enable RDMA for each device it trusts. However, handling SBP-2 transfers in software is not implemented (yet), so RDMA is enabled for any device that is a mass storage device, or just claims to be one.

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