[for-next,v2,0/4] ib_pd should not have ib_uobject

Message

Shamir Rabinovitch May 20, 2019, 7:53 a.m. UTC

This patch set complete the cleanup done in the driver/verbs/uverbs
where the dependency of the code in the ib_x uobject pointer was
removed.

The uobject pointer is removed from the ib_pd as last step 
before I can start adding the pd sharing code.

The rdma/netlink code now don't have dependency in the ib_pd
uobject pointer and can report multiple context id that point
to same ib_pd. 

Using iproute2 I can test the modified rdma/netlink:
[root@qemu-fc29 iproute2]# ./rdma/rdma res show pd 
dev mlx4_0 pdn 0 local_dma_lkey 0x8000 users 4 comm [ib_core] 
dev mlx4_0 pdn 1 local_dma_lkey 0x8000 users 4 comm [ib_core] 
dev mlx4_0 pdn 2 local_dma_lkey 0x8000 users 5 comm [ib_ipoib] 
dev mlx4_0 pdn 3 local_dma_lkey 0x8000 users 5 comm [ib_ipoib] 
dev mlx4_0 pdn 4 local_dma_lkey 0x8000 users 0 comm [ib_srp] 
dev mlx4_0 pdn 5 local_dma_lkey 0x8000 users 0 comm [ib_srpt] 
dev mlx4_0 pdn 14 local_dma_lkey 0x0 users 2 ctxn 8 pid 11786 comm ib_write_bw 
dev mlx4_0 pdn 15 local_dma_lkey 0x0 users 2 ctxn 9 pid 11787 comm ib_write_bw

Changelog:

v1->v2
* 1 patch from v1 applied (Jason)
* Fix uobj_get_obj_read macro (Jason)
* Do not allocate memory when fixing uobj_get_obj_read (Jason)
* Fix uobj_get_obj_read macro (Jason)
* rdma/netlink can now work as before (Leon)

Shamir Rabinovitch (4):
  RDMA/uverbs: uobj_get_obj_read should return the ib_uobject
  RDMA/uverbs: uobj_put_obj_read macro should be removed
  RDMA/nldev: ib_pd can be pointed by multiple ib_ucontext
  IB/{core,hw}: ib_pd should not have ib_uobject pointer

 drivers/infiniband/core/nldev.c            |  93 ++++++++-
 drivers/infiniband/core/uverbs_cmd.c       | 218 +++++++++++++--------
 drivers/infiniband/core/verbs.c            |   1 -
 drivers/infiniband/hw/hns/hns_roce_hw_v1.c |   1 -
 drivers/infiniband/hw/mlx5/main.c          |   1 -
 drivers/infiniband/hw/mthca/mthca_qp.c     |   3 +-
 include/rdma/ib_verbs.h                    |   1 -
 include/rdma/uverbs_std_types.h            |  11 +-
 8 files changed, 234 insertions(+), 95 deletions(-)