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RDMA/core: Add local DMA L_Key support

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- 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>
This commit is contained in:
Steve Wise
2008-07-14 23:48:53 -07:00
committed by Roland Dreier
parent aed012279d
commit 96f15c0353
4 changed files with 8 additions and 5 deletions
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2
drivers/infiniband/hw/nes/nes_hw.c
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@@ -398,7 +398,7 @@ struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
nesadapter->base_pd = 1;
nesadapter->device_cap_flags =
IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW;
IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
nesadapter->allocated_qps = (unsigned long *)&(((unsigned char *)nesadapter)
[(sizeof(struct nes_adapter)+(sizeof(unsigned long)-1))&(~(sizeof(unsigned long)-1))]);