From: Steve Wise <swise@opengridcomputing.com>
Date: Tue, 15 Jul 2008 06:48:53 +0000 (-0700)
Subject: RDMA/core: Add local DMA L_Key support
X-Git-Tag: v2.6.27-rc1~1090^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=96f15c03532282366364ecfd20f04e49b5d96f3a;p=pandora-kernel.git

RDMA/core: Add local DMA L_Key support

- Change the IB_DEVICE_ZERO_STAG flag to the transport-neutral name
  IB_DEVICE_LOCAL_DMA_LKEY, which is used by iWARP RNICs to indicate 0
  STag support and IB HCAs to indicate reserved L_Key support.

- Add a u32 local_dma_lkey member to struct ib_device.  Drivers fill
  this in with the appropriate local DMA L_Key (if they support it).

- Fix up the drivers using this flag.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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