Dma-buf based memory region requires one extra parameter and is processed
quite differently. Adding a separate method allows clean separation from
regular memory regions.

Signed-off-by: Jianxin Xiong <jianxin.xi...@intel.com>
Reviewed-by: Sean Hefty <sean.he...@intel.com>
Acked-by: Michael J. Ruhl <michael.j.r...@intel.com>
Acked-by: Christian Koenig <christian.koe...@amd.com>
---
 drivers/infiniband/core/device.c | 1 +
 include/rdma/ib_verbs.h          | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index feaec8d..d6cd0ac 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -2653,6 +2653,7 @@ void ib_set_device_ops(struct ib_device *dev, const 
struct ib_device_ops *ops)
        SET_DEVICE_OP(dev_ops, read_counters);
        SET_DEVICE_OP(dev_ops, reg_dm_mr);
        SET_DEVICE_OP(dev_ops, reg_user_mr);
+       SET_DEVICE_OP(dev_ops, reg_user_mr_dmabuf);
        SET_DEVICE_OP(dev_ops, req_ncomp_notif);
        SET_DEVICE_OP(dev_ops, req_notify_cq);
        SET_DEVICE_OP(dev_ops, rereg_user_mr);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 9bf6c31..48bab74 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2,7 +2,7 @@
 /*
  * Copyright (c) 2004 Mellanox Technologies Ltd.  All rights reserved.
  * Copyright (c) 2004 Infinicon Corporation.  All rights reserved.
- * Copyright (c) 2004 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2004, 2020 Intel Corporation.  All rights reserved.
  * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
  * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
@@ -2429,6 +2429,10 @@ struct ib_device_ops {
        struct ib_mr *(*reg_user_mr)(struct ib_pd *pd, u64 start, u64 length,
                                     u64 virt_addr, int mr_access_flags,
                                     struct ib_udata *udata);
+       struct ib_mr *(*reg_user_mr_dmabuf)(struct ib_pd *pd, u64 start,
+                                    u64 length, u64 virt_addr, int dmabuf_fd,
+                                    int mr_access_flags,
+                                    struct ib_udata *udata);
        int (*rereg_user_mr)(struct ib_mr *mr, int flags, u64 start, u64 length,
                             u64 virt_addr, int mr_access_flags,
                             struct ib_pd *pd, struct ib_udata *udata);
-- 
1.8.3.1

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