diff options
| author | Jianxin Xiong <jianxin.xiong@intel.com> | 2016-07-25 13:38:19 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-08-02 16:00:58 -0400 |
| commit | e8f8b098a44a66d3da81e460aed465f26693e120 (patch) | |
| tree | 4465cffdd5aab0d5fc0fd443b3454ec0e5c497d7 /include/rdma | |
| parent | a41081aa59363760ae8bc20929617f57bcf025b8 (diff) | |
| download | linux-e8f8b098a44a66d3da81e460aed465f26693e120.tar.bz2 | |
IB/rdmavt: Add mechanism to invalidate MR keys
In order to support extended memory management, add the mechanism to
invalidate MR keys. This includes a flag "lkey_invalid" in the MR data
structure that is to be checked when validating access to the MR via
the associated key, and two utility functions to perform fast memory
registration and memory key invalidate operations.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/rdma_vt.h | 3 | ||||
| -rw-r--r-- | include/rdma/rdmavt_mr.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h index 3a70dc047314..7fdba92d4c05 100644 --- a/include/rdma/rdma_vt.h +++ b/include/rdma/rdma_vt.h @@ -487,6 +487,9 @@ void rvt_unregister_device(struct rvt_dev_info *rvd); int rvt_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr); int rvt_init_port(struct rvt_dev_info *rdi, struct rvt_ibport *port, int port_index, u16 *pkey_table); +int rvt_fast_reg_mr(struct rvt_qp *qp, struct ib_mr *ibmr, u32 key, + int access); +int rvt_invalidate_rkey(struct rvt_qp *qp, u32 rkey); int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge, u32 len, u64 vaddr, u32 rkey, int acc); int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd, diff --git a/include/rdma/rdmavt_mr.h b/include/rdma/rdmavt_mr.h index 5edffdca8c53..6b3c6c8b6b77 100644 --- a/include/rdma/rdmavt_mr.h +++ b/include/rdma/rdmavt_mr.h @@ -81,6 +81,7 @@ struct rvt_mregion { u32 mapsz; /* size of the map array */ u8 page_shift; /* 0 - non unform/non powerof2 sizes */ u8 lkey_published; /* in global table */ + atomic_t lkey_invalid; /* true if current lkey is invalid */ struct completion comp; /* complete when refcount goes to zero */ atomic_t refcount; struct rvt_segarray *map[0]; /* the segments */ |