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authorSteve Wise <swise@opengridcomputing.com>2008-07-14 23:48:53 -0700
committerRoland Dreier <rolandd@cisco.com>2008-07-14 23:48:53 -0700
commit96f15c03532282366364ecfd20f04e49b5d96f3a (patch)
treecf3cdbd22a112c43807175045d4e02286b729de0 /include/rdma
parentaed012279d35e88e29fd55737d8821604433f50a (diff)
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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>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 07b41e05565..90b529f7a15 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -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;
};