Introduce UCAP API and usage in mlx5
Status from this message: Applied, thanks!
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Changes in v1 from the cover letter
* Used kref primitives instead of open-coded variant
* Check return value from dev_set_name()
* Added extra brackets around type in UCAP_ENABLED macro
v0: https://lore.kernel.org/all/[email protected]
Patches in v1 Applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/6 | RDMA/uverbs: Introduce UCAP (User CAPabilities) APIdrivers/ drivers/ drivers/ +1 more | +296 | 2 replies | |
| 2/6 | RDMA/mlx5: Create UCAP char devices for supported device capabilitiesdrivers/ | +47 | 0 replies | |
| 3/6 | RDMA/uverbs: Add support for UCAPs in context creationdrivers/ drivers/ include/ +1 more | +25 | 0 replies | |
| 4/6 | RDMA/mlx5: Check enabled UCAPs when creating ucontextdrivers/ drivers/ drivers/ | +58 | 0 replies | |
| 5/6 | RDMA/mlx5: Expose RDMA TRANSPORT flow table types to userspacedrivers/ drivers/ drivers/ +2 more | +149 | 0 replies | |
| 6/6 | docs: infiniband: document the UCAP APIDocumentation/ Documentation/ | +72 | 0 replies |
Reviews trailers per patch
All 6 patches have a Reviewed-by or Acked-by.
| Patch | Yishai Hadas | Mark Bloch | Zhu Yanjun |
|---|---|---|---|
| 1/6 | R-b | R-b | |
| 2/6 | R-b | ||
| 3/6 | R-b | ||
| 4/6 | R-b | ||
| 5/6 | R-b | ||
| 6/6 | R-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 3 reviewers.
Cover letter [PATCH rdma-next v1 0/6] Introduce UCAP API and usage in mlx5
Changelog:
v1:
* Used kref primitives instead of open-coded variant
* Check return value from dev_set_name()
* Added extra brackets around type in UCAP_ENABLED macro
v0: https://lore.kernel.org/all/[email protected]
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This series introduces the User CAPability (UCAP) API that allows creating user contexts with various firmware privileges.
The UCAP API provides fine-grained control over specific firmware features by representing each capability as a character device with root read-write access. Root processes can grant users special privileges by allowing access to these character devices. User contexts created using a file descriptor of a UCAP will have specific UCAP privileges.
Two UCAP character devices are created for mlx5, and user contexts opened with at least one of these UCAPs are considered privileged. To ensure that privileged commands can always proceed, non-privileged commands are limited when a privileged user is present on the device.
Thanks
Chiara Meiohas (5):
RDMA/uverbs: Introduce UCAP (User CAPabilities) API RDMA/mlx5: Create UCAP char devices for supported device capabilities RDMA/uverbs: Add support for UCAPs in context creation RDMA/mlx5: Check enabled UCAPs when creating ucontext
docs: infiniband: document the UCAP API
Patrisious Haddad (1):
RDMA/mlx5: Expose RDMA TRANSPORT flow table types to userspace
Documentation/infiniband/index.rst | 1 + Documentation/infiniband/ucaps.rst | 71 +++++ drivers/infiniband/core/Makefile | 3 +- drivers/infiniband/core/ucaps.c | 267 ++++++++++++++++++ drivers/infiniband/core/uverbs_cmd.c | 19 ++ drivers/infiniband/core/uverbs_main.c | 2 + .../infiniband/core/uverbs_std_types_device.c | 4 + drivers/infiniband/hw/mlx5/devx.c | 31 +- drivers/infiniband/hw/mlx5/devx.h | 5 +- drivers/infiniband/hw/mlx5/fs.c | 154 +++++++++- drivers/infiniband/hw/mlx5/fs.h | 2 + drivers/infiniband/hw/mlx5/main.c | 77 ++++- drivers/infiniband/hw/mlx5/mlx5_ib.h | 3 + include/rdma/ib_ucaps.h | 25 ++ include/rdma/ib_verbs.h | 1 + include/uapi/rdma/ib_user_ioctl_cmds.h | 1 + include/uapi/rdma/mlx5_user_ioctl_cmds.h | 1 + include/uapi/rdma/mlx5_user_ioctl_verbs.h | 2 + 18 files changed, 647 insertions(+), 22 deletions(-) create mode 100644 Documentation/infiniband/ucaps.rst create mode 100644 drivers/infiniband/core/ucaps.c create mode 100644 include/rdma/ib_ucaps.h
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