diff options
| author |   Shachar Raindel <raindel@mellanox.com> | 2014-12-11 17:04:17 +0200 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2014-12-15 18:13:36 -0800 |
| commit | 8ada2c1c0c1d75a60723cd2ca7d49c594a146af6 (patch) | |
| tree | a80d10bb8cf4888a7f6313698a40980de5724b51 /drivers/infiniband/core/Makefile | |
| parent | IB/core: Add flags for on demand paging support (diff) | |
| download | linux-dev-8ada2c1c0c1d75a60723cd2ca7d49c594a146af6.tar.xz linux-dev-8ada2c1c0c1d75a60723cd2ca7d49c594a146af6.zip | |
IB/core: Add support for on demand paging regions
* Extend the umem struct to keep the ODP related data.
* Allocate and initialize the ODP related information in the umem
(page_list, dma_list) and freeing as needed in the end of the run.
* Store a reference to the process PID struct in the ucontext. Used to
safely obtain the task_struct and the mm during fault handling,
without preventing the task destruction if needed.
* Add 2 helper functions: ib_umem_odp_map_dma_pages and
ib_umem_odp_unmap_dma_pages. These functions get the DMA addresses
of specific pages of the umem (and, currently, pin them).
* Support for page faults only - IB core will keep the reference on
the pages used and call put_page when freeing an ODP umem
area. Invalidations support will be added in a later patch.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core/Makefile')
| -rw-r--r-- | drivers/infiniband/core/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile index ffd0af6734af..c58f7913c560 100644 --- a/drivers/infiniband/core/Makefile +++ b/drivers/infiniband/core/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o \ ib_core-y := packer.o ud_header.o verbs.o sysfs.o \ device.o fmr_pool.o cache.o netlink.o ib_core-$(CONFIG_INFINIBAND_USER_MEM) += umem.o +ib_core-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += umem_odp.o ib_mad-y := mad.o smi.o agent.o mad_rmpp.o |