forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

RDMA/core: Add local DMA L_Key support

Browse source 
- 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
Download patch file Download diff file Expand all files Collapse all files

3
include/rdma/ib_verbs.h
View file

@ -91,7 +91,7 @@ enum ib_device_cap_flags {
IB_DEVICE_RC_RNR_NAK_GEN = (1<<12),
IB_DEVICE_SRQ_RESIZE = (1<<13),
IB_DEVICE_N_NOTIFY_CQ = (1<<14),
IB_DEVICE_ZERO_STAG = (1<<15),
IB_DEVICE_LOCAL_DMA_LKEY = (1<<15),
IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */
IB_DEVICE_MEM_WINDOW = (1<<17),
/*
@ -1149,6 +1149,7 @@ struct ib_device {
char node_desc[64];
__be64 node_guid;
u32 local_dma_lkey;
u8 node_type;
u8 phys_port_cnt;
};