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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 112
The dma-buf API have been used under the assumption that the sg lists
returned from dma_buf_map_attachment() are fully page aligned. Lots of
stuff can break otherwise all over the place. Clarify this in the
documentation and add a check when DMA API debug is enabled.
Signed-off-by: Jianxin Xiong
. Patch 4 adds dma-buf support to the mlx5 driver. Patch 5 adds
clarification to the dma-buf API documentation that dma-buf sg lists
are page aligned.
Related user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (5):
RDMA/umem: Support importing dma-buf as user
Add uverbs command for registering user memory region associated
with a dma-buf file descriptor.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
---
drivers/infiniband/core/uverbs_std_types_mr.c | 115 ++
include/uapi/rdma
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
---
drivers
a new uverbs command for registering dma-buf based memory region.
Related user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA: Expand driver memory registration methods to support dma
-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
---
drivers/infiniband/core/uverbs_cmd.c| 25 +---
drivers/infiniband/core/verbs.c | 15 ++--
drivers/infiniband/hw/bnxt_re/ib_verbs.c| 23 +--
drivers/infiniband/hw/bnxt_re
the difference.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
---
drivers/infiniband/hw/mlx5/mr.c | 50 +---
drivers/infiniband/hw/mlx5/odp.c | 22 --
2 files changed, 67 insertions(+), 5 deletions(-)
diff
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
---
drivers
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
---
drivers/infiniband/core/uverbs_std_types_mr.c | 112
that dma-buf sg lists
are page aligned.
Related user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (5):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf base memory
region
RDMA/uverbs: Add
The dma-buf API have been used under the assumption that the sg lists
returned from dma_buf_map_attachment() are fully page aligned. Lots of
stuff can break otherwise all over the place. Clarify this in the
documentation and add a check when DMA API debug is enabled.
Signed-off-by: Jianxin Xiong
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
aligned.
Related user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf base memory
region
RDMA/uverbs: Add uverbs command for dma-buf based
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 112
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
Add new API function and new provider method for registering dma-buf
based memory region. Update the man page and bump the API version.
Signed-off-by: Jianxin Xiong
---
debian/libibverbs1.symbols | 2 ++
libibverbs/CMakeLists.txt| 2 +-
libibverbs/cmd_mr.c | 38
Implement the new provider method for registering dma-buf based memory
regions.
Signed-off-by: Jianxin Xiong
---
providers/mlx5/mlx5.c | 2 ++
providers/mlx5/mlx5.h | 3 +++
providers/mlx5/verbs.c | 22 ++
3 files changed, 27 insertions(+)
diff --git a/providers/mlx5
-core/pull/895
Jianxin Xiong (6):
Update kernel headers
verbs: Support dma-buf based memory region
mlx5: Support dma-buf based memory region
pyverbs: Add dma-buf based MR support
tests: Add tests for dma-buf based memory regions
tests: Bug fix for get_access_flags()
buildlib
Define a new sub-class of 'MR' that uses dma-buf object for the memory
region. Define a new class 'DmaBuf' as a wrapper for dma-buf allocation
mechanism implemented in C.
Add a method to buildlib for building modules with mixed Cython and C
source.
Signed-off-by: Jianxin Xiong
---
buildlib
Define a set of unit tests similar to regular MR tests and a set of
tests for send/recv and rdma traffic using dma-buf MRs. Add a utility
function to generate access flags for dma-buf based MRs because the
set of supported flags is smaller.
Signed-off-by: Jianxin Xiong
---
tests/test_mr.py
The filter definition is wrong and causes get_access_flags() always
returning empty list. As the result the MR tests using this function
are effectively skipped (but report success).
Signed-off-by: Jianxin Xiong
---
tests/utils.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff
To commit 2eef437c4669 ("RDMA/uverbs: Add uverbs command for dma-buf based
MR registration").
Signed-off-by: Jianxin Xiong
---
kernel-headers/rdma/ib_user_ioctl_cmds.h | 14 ++
kernel-headers/rdma/ib_user_verbs.h | 14 --
2 files changed, 14 inserti
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
reg_user_mr_dmabuf().
Patch 3 adds a new uverbs command for registering dma-buf based memory
region. Patch 4 adds dma-buf support to the mlx5 driver.
Related user space RDMA library changes are provided as a separate
patch series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 117
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf based memory
region
RDMA/uverbs: Add uverbs command for dma-buf based MR registration
RDMA/mlx5: Support dma-buf based userspace memory region
drivers/infiniband
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
Reviewed-by: Leon Romanovsky
---
drivers/infiniband/core
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
a new uverbs command for registering dma-buf based memory
region. Patch 4 adds dma-buf support to the mlx5 driver.
Related user space RDMA library changes are provided as a separate
patch series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 114
Add new API function and new provider method for registering dma-buf
based memory region. Update the man page and bump the API version.
Signed-off-by: Jianxin Xiong
---
debian/libibverbs1.symbols | 2 ++
libibverbs/CMakeLists.txt| 2 +-
libibverbs/cmd_mr.c | 38
for the new API.
Patch 4 adds a set of new tests for the new API. Patch 5 fixes bug in
the utility code of the tests.
Pull request at github: https://github.com/linux-rdma/rdma-core/pull/895
Jianxin Xiong (6):
Update kernel headers
verbs: Support dma-buf based memory region
mlx5: Support dma-buf
Define a new sub-class of 'MR' that uses dma-buf object for the memory
region. Define a new class 'DmaBuf' for dma-buf object allocation.
Signed-off-by: Jianxin Xiong
---
pyverbs/CMakeLists.txt | 2 ++
pyverbs/dmabuf.pxd | 13
pyverbs/dmabuf.pyx | 85
To commit 2eef437c4669 ("RDMA/uverbs: Add uverbs command for dma-buf based
MR registration").
Signed-off-by: Jianxin Xiong
---
kernel-headers/rdma/ib_user_ioctl_cmds.h | 14 ++
kernel-headers/rdma/ib_user_verbs.h | 14 --
2 files changed, 14 inserti
Implement the new provider method for registering dma-buf based memory
regions.
Signed-off-by: Jianxin Xiong
---
providers/mlx5/mlx5.c | 2 ++
providers/mlx5/mlx5.h | 3 +++
providers/mlx5/verbs.c | 22 ++
3 files changed, 27 insertions(+)
diff --git a/providers/mlx5
Define a full set of tests similar to regular MR tests. Add a utility
function to generate access flags for dma-buf based MRs because the
set of supported flags is smaller.
Signed-off-by: Jianxin Xiong
---
tests/test_mr.py | 130 ++-
tests
The filter definition is wrong and causes get_access_flags() always
returning empty list. As the result the MR tests using this function
are effectively skipped (but report success).
Signed-off-by: Jianxin Xiong
---
tests/utils.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 114
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf based memory
region
RDMA/uverbs: Add uverbs command for dma-buf based MR registration
RDMA/mlx5: Support dma-buf based userspace memory region
adds the new API
function and updates the man pages. Patch 2 implements the new API in
the mlx5 provider. Patch 3 adds new class definitions to pyverbs for
the new API. Patch 4 adds new tests for the new API. Patch 5 fixes bug
in the utility code of the tests.
Jianxin Xiong (5):
verbs: Support
Add new API function and new provider method for registering dma-buf
based memory region. Update the man page and bump the API version.
Signed-off-by: Jianxin Xiong
---
kernel-headers/rdma/ib_user_ioctl_cmds.h | 14
libibverbs/cmd_mr.c | 38
Define a new sub-class of 'MR' that uses dma-buf object for the memory
region. Define a new class 'DmaBuf' for dma-buf object allocation.
Signed-off-by: Jianxin Xiong
---
pyverbs/CMakeLists.txt | 2 ++
pyverbs/dmabuf.pxd | 13 +
pyverbs/dmabuf.pyx | 58
Implement the new provider method for registering dma-buf based memory
regions.
Signed-off-by: Jianxin Xiong
---
providers/mlx5/mlx5.c | 2 ++
providers/mlx5/mlx5.h | 3 +++
providers/mlx5/verbs.c | 23 +++
3 files changed, 28 insertions(+)
diff --git a/providers/mlx5
Define a full set of tests similar to regular MR tests. Add a utility
function to generate access flags for dma-buf based MRs because the
set of supported flags is smaller.
Signed-off-by: Jianxin Xiong
---
tests/test_mr.py | 130 ++-
tests
The filter defintion is wrong and causes get_access_flags() always
returning empty list. As the result the MR tests using this function
are effectively skipped (but report success).
Also fix a typo in the comments.
Signed-off-by: Jianxin Xiong
---
tests/utils.py | 6 +++---
1 file changed, 3
Define a set of unit tests similar to regular MR tests and a set of
tests for send/recv and rdma traffic using dma-buf MRs. Add a utility
function to generate access flags for dma-buf based MRs because the
set of supported flags is smaller.
Signed-off-by: Jianxin Xiong
---
tests/args_parser.py
To commit 2eef437c4669 ("RDMA/uverbs: Add uverbs command for dma-buf based
MR registration").
Signed-off-by: Jianxin Xiong
---
kernel-headers/rdma/ib_user_ioctl_cmds.h | 14 ++
kernel-headers/rdma/ib_user_verbs.h | 14 --
2 files changed, 14 inserti
-by: Jianxin Xiong
---
buildlib/pyverbs_functions.cmake | 78 +++
pyverbs/CMakeLists.txt | 11 +-
pyverbs/dmabuf.pxd | 15 +++
pyverbs/dmabuf.pyx | 73 ++
pyverbs/dmabuf_alloc.c | 278 +++
pyverbs
Add new API function and new provider method for registering dma-buf
based memory region. Update the man page and bump the API version.
Signed-off-by: Jianxin Xiong
---
debian/libibverbs1.symbols | 2 ++
libibverbs/CMakeLists.txt| 2 +-
libibverbs/cmd_mr.c | 38
Implement the new provider method for registering dma-buf based memory
regions.
Signed-off-by: Jianxin Xiong
---
providers/mlx5/mlx5.c | 2 ++
providers/mlx5/mlx5.h | 3 +++
providers/mlx5/verbs.c | 22 ++
3 files changed, 27 insertions(+)
diff --git a/providers/mlx5
://github.com/linux-rdma/rdma-core/pull/895
Jianxin Xiong (6):
Update kernel headers
verbs: Support dma-buf based memory region
mlx5: Support dma-buf based memory region
pyverbs: Add dma-buf based MR support
tests: Add tests for dma-buf based memory regions
tests: Bug fix for get_access_flags
The filter definition is wrong and causes get_access_flags() always
returning empty list. As the result the MR tests using this function
are effectively skipped (but report success).
Signed-off-by: Jianxin Xiong
---
tests/utils.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
Reviewed-by: Leon Romanovsky
---
drivers/infiniband/core
dma-buf based memory
region. Patch 4 adds dma-buf support to the mlx5 driver.
Related user space RDMA library changes are provided as a separate
patch series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
Reviewed-by: Leon Romanovsky
---
drivers/infiniband/core
space RDMA library changes are provided as a separate
patch series.
Jianxin Xiong (4):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf based memory
region
RDMA/uverbs: Add uverbs command for dma-buf based MR registration
RDMA/mlx
user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (5):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf based memory
region
RDMA/uverbs: Add uverbs command for dma-buf based MR
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
-by: Jianxin Xiong
---
drivers/dma-buf/dma-buf.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 9a054fb5..ba2b877 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -686,6 +686,11 @@ struct dma_buf_attachment
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 122
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
The fact that the size of dma-buf is invariant over the lifetime of the
buffer is mentioned in the comment of 'dma_buf_ops.mmap', but is not
documented at where the info is defined. Add the missing documentation.
Signed-off-by: Jianxin Xiong
---
include/linux/dma-buf.h | 4 ++--
1 file changed
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 122
of the buffer.
Related user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (6):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf based memory
region
RDMA/uverbs: Add uverbs command for dma-buf
-by: Jianxin Xiong
---
drivers/dma-buf/dma-buf.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 9a054fb5..ba2b877 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -686,6 +686,11 @@ struct dma_buf_attachment
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
igned")
Reported-by: Dan Carpenter
Signed-off-by: Jianxin Xiong
---
drivers/dma-buf/dma-buf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 556f62e..0eb80c1 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/d
and reject the request if so.
Related user space RDMA library changes will be provided as a separate
patch series.
Jianxin Xiong (5):
RDMA/umem: Support importing dma-buf as user memory region
RDMA/core: Add device method for registering dma-buf based memory
region
RDMA/uverbs: Add uverbs
the buffer is registered as a memory region,
the file descriptor is passed to the RDMA driver along with other
parameters.
Implement the common code for importing dma-buf object and mapping
dma-buf pages.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked
Implement a new uverbs ioctl method for memory registration with file
descriptor as an extra parameter.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel Vetter
---
drivers/infiniband/core/uverbs_std_types_mr.c | 112
-by: Jianxin Xiong
---
drivers/dma-buf/dma-buf.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 9a054fb5..ba2b877 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -686,6 +686,11 @@ struct dma_buf_attachment
Implement the new driver method 'reg_user_mr_dmabuf'. Utilize the core
functions to import dma-buf based memory region and update the mappings.
Add code to handle dma-buf related page fault.
Signed-off-by: Jianxin Xiong
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
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
Reviewed-by: Sean Hefty
Acked-by: Michael J. Ruhl
Acked-by: Christian Koenig
Acked-by: Daniel
1 - 100 of 138 matches
Mail list logo
