From: Joel Nider <joeln@il.ibm.com>
To: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>,
Doug Ledford <dledford@redhat.com>,
Mike Rapoport <rppt@linux.ibm.com>, Joel Nider <joeln@il.ibm.com>,
linux-mm@kvack.org, linux-rdma@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/5] RDMA: reg_remote_mr
Date: Tue, 29 Jan 2019 15:26:21 +0200 [thread overview]
Message-ID: <1548768386-28289-1-git-send-email-joeln@il.ibm.com> (raw)
As discussed at LPC'18, there is a need to be able to register a memory
region (MR) on behalf of another process. One example is the case of
post-copy container migration, in which CRIU is responsible for setting
up the migration, but the contents of the memory are from the migrating
process. In this case, we want all RDMA READ requests to be served by
the address space of the migration process directly (not by CRIU). This
patchset implements a new uverbs command which allows an application to
register a memory region in the address space of another process.
Joel Nider (5):
mm: add get_user_pages_remote_longterm function
RDMA/uverbs: add owner parameter to reg_user_mr
RDMA/uverbs: add owner parameter to ib_umem_get
RDMA/uverbs: add owner parameter to ib_umem_odp_get
RDMA/uverbs: add UVERBS_METHOD_REG_REMOTE_MR
drivers/infiniband/core/umem.c | 26 ++++--
drivers/infiniband/core/umem_odp.c | 50 +++++-----
drivers/infiniband/core/uverbs_cmd.c | 2 +-
drivers/infiniband/core/uverbs_std_types_mr.c | 129 +++++++++++++++++++++++++-
drivers/infiniband/hw/bnxt_re/ib_verbs.c | 11 ++-
drivers/infiniband/hw/bnxt_re/ib_verbs.h | 1 +
drivers/infiniband/hw/cxgb3/iwch_provider.c | 6 +-
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 1 +
drivers/infiniband/hw/cxgb4/mem.c | 6 +-
drivers/infiniband/hw/hns/hns_roce_cq.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_db.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_mr.c | 4 +-
drivers/infiniband/hw/hns/hns_roce_qp.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_srq.c | 2 +-
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 3 +-
drivers/infiniband/hw/mlx4/cq.c | 2 +-
drivers/infiniband/hw/mlx4/doorbell.c | 2 +-
drivers/infiniband/hw/mlx4/mlx4_ib.h | 1 +
drivers/infiniband/hw/mlx4/mr.c | 3 +-
drivers/infiniband/hw/mlx4/qp.c | 2 +-
drivers/infiniband/hw/mlx4/srq.c | 2 +-
drivers/infiniband/hw/mlx5/cq.c | 4 +-
drivers/infiniband/hw/mlx5/devx.c | 2 +-
drivers/infiniband/hw/mlx5/doorbell.c | 2 +-
drivers/infiniband/hw/mlx5/mlx5_ib.h | 4 +-
drivers/infiniband/hw/mlx5/mr.c | 17 ++--
drivers/infiniband/hw/mlx5/odp.c | 11 ++-
drivers/infiniband/hw/mlx5/qp.c | 4 +-
drivers/infiniband/hw/mlx5/srq.c | 2 +-
drivers/infiniband/hw/mthca/mthca_provider.c | 5 +-
drivers/infiniband/hw/nes/nes_verbs.c | 5 +-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 6 +-
drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 3 +-
drivers/infiniband/hw/qedr/verbs.c | 8 +-
drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 1 +
drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 1 +
drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c | 2 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_mr.c | 2 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 5 +-
drivers/infiniband/hw/vmw_pvrdma/pvrdma_srq.c | 2 +-
drivers/infiniband/sw/rdmavt/mr.c | 3 +-
drivers/infiniband/sw/rdmavt/mr.h | 1 +
drivers/infiniband/sw/rxe/rxe_mr.c | 3 +-
drivers/infiniband/sw/rxe/rxe_verbs.c | 4 +-
include/linux/mm.h | 28 +++++-
include/rdma/ib_umem.h | 3 +-
include/rdma/ib_umem_odp.h | 6 +-
include/rdma/ib_verbs.h | 9 ++
include/uapi/rdma/ib_user_ioctl_cmds.h | 13 +++
mm/gup.c | 15 ++-
50 files changed, 327 insertions(+), 103 deletions(-)
--
2.7.4
next reply other threads:[~2019-01-29 13:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-29 13:26 Joel Nider [this message]
2019-01-29 13:26 ` [PATCH 1/5] mm: add get_user_pages_remote_longterm function Joel Nider
2019-01-29 13:26 ` [PATCH 2/5] RDMA/uverbs: add owner parameter to reg_user_mr Joel Nider
2019-01-29 13:26 ` [PATCH 3/5] RDMA/uverbs: add owner parameter to ib_umem_get Joel Nider
2019-01-29 16:56 ` Jason Gunthorpe
2019-01-29 18:29 ` Ira Weiny
2019-01-29 13:26 ` [PATCH 4/5] RDMA/uverbs: add owner parameter to ib_umem_odp_get Joel Nider
2019-01-29 13:26 ` [PATCH 5/5] RDMA/uverbs: add UVERBS_METHOD_REG_REMOTE_MR Joel Nider
2019-01-29 17:04 ` Jason Gunthorpe
2019-01-30 8:34 ` Joel Nider
2019-01-30 21:23 ` Jason Gunthorpe
2019-01-29 16:44 ` [PATCH 0/5] RDMA: reg_remote_mr Steve Wise
2019-01-29 18:34 ` Ira Weiny
2019-01-30 8:22 ` Joel Nider
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