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| author |   Steve Wise <swise@opengridcomputing.com> | 2010-09-13 11:23:57 -0500 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2010-09-28 10:46:35 -0700 |
| commit | c6d7b26791a2aefdf97f2af1e93161ed05acd631 (patch) | |
| tree | 61b9b3af001fe5983aa84034d20e44eb43c039a8 /drivers/infiniband/hw/cxgb4/user.h | |
| parent | RDMA/cxgb4: Centralize the wait logic (diff) | |
| download | linux-dev-c6d7b26791a2aefdf97f2af1e93161ed05acd631.tar.xz linux-dev-c6d7b26791a2aefdf97f2af1e93161ed05acd631.zip | |
RDMA/cxgb4: Support on-chip SQs
T4 support on-chip SQs to reduce latency. This patch adds support for
this in iw_cxgb4:
- Manage ocqp memory like other adapter mem resources.
- Allocate user mode SQs from ocqp mem if available.
- Map ocqp mem to user process using write combining.
- Map PCIE_MA_SYNC reg to user process.
Bump uverbs ABI.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/user.h')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/user.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/user.h b/drivers/infiniband/hw/cxgb4/user.h index ed6414abde02..e6669d54770e 100644 --- a/drivers/infiniband/hw/cxgb4/user.h +++ b/drivers/infiniband/hw/cxgb4/user.h @@ -50,7 +50,13 @@ struct c4iw_create_cq_resp { __u32 qid_mask; }; + +enum { + C4IW_QPF_ONCHIP = (1<<0) +}; + struct c4iw_create_qp_resp { + __u64 ma_sync_key; __u64 sq_key; __u64 rq_key; __u64 sq_db_gts_key; @@ -62,5 +68,6 @@ struct c4iw_create_qp_resp { __u32 sq_size; __u32 rq_size; __u32 qid_mask; + __u32 flags; }; #endif |