| Message ID | 20210701201005.3065299-1-vishal.l.verma@intel.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Initial CXL support | expand |
On Thu, 2021-07-01 at 14:09 -0600, Vishal Verma wrote: > Changes since v2[1]: > > - Some minor cleanups and formatting (Ben) > - Update cxl_mem.h to the latest kernel version (Ben) > - Add .clang-format (Ben) > - Add label commands to cxl-clu - {read,write,zero}-labels > - Add libcxl and cxl-cli to the RPM spec > - Add bash-completion for cxl-cli > - > > [1]: https://lore.kernel.org/linux-cxl/20210219020331.725687-1-vishal.l.verma@intel.com/ > > --- > > These patches add a new utility and library to support CXL devices. > This comprehends the kernel's sysfs layout for CXL devices, and > implements a command submission harness for CXL mailbox commands via > ioctl()s definied by the cxl_mem driver. > > These patches include: > - libcxl representation of cxl_mem devices > - A command submission harness through libcxl > - A 'cxl-list' command which displays information about a device > - cxl-{read,write,zero}-labels commands for Label Storage Area > manipulation > - Unit tests to exercise several libcxl APIs and perform mailbox > commands. > > Patch 15 is an RFC - maybe this should just be dropped entirely for now > until there is a concept of active/disabled memdevs. It is useful as a > placeholder as it allows for a way to pre-insert checks in places > we expect the device to be active or disabled. > > An ndctl branch with these patches is also available at [2] > > [2]: https://github.com/pmem/ndctl/tree/cxl-2.0v2 Sorry, this should be: https://github.com/pmem/ndctl/tree/cxl-2.0v3 > > Ira Weiny (1): > ndctl: Add CXL packages to the RPM spec > > Vishal Verma (20): > ndctl: add .clang-format > cxl: add a cxl utility and libcxl library > cxl: add a local copy of the cxl_mem UAPI header > libcxl: add support for command query and submission > libcxl: add support for the 'Identify Device' command > test: rename 'ndctl_test' to 'test_ctx' > test: rename 'ndctl_test_*' helpers to 'test_*' > test: introduce a libcxl unit test > libcxl: add GET_HEALTH_INFO mailbox command and accessors > libcxl: add support for the 'GET_LSA' command > util/hexdump: Add a util helper to print a buffer in hex > test/libcxl: add a test for {set, get}_lsa commands > test/libcxl: introduce a command size fuzzing test > libcxl: add lsa_size to cxl_memdev, and an API to retrieve it > libcxl: PLACEHOLDER: add an interface to determine whether a memdev is > active > libcxl: add interfaces for label operations > test/libcxl: add a test for cxl_memdev_{get,set}_lsa > cxl: add commands to read, write, and zero labels > Documentation/cxl: add library API documentation > cxl-cli: add bash completion > > Documentation/cxl/cxl-list.txt | 64 ++ > Documentation/cxl/cxl-read-labels.txt | 33 + > Documentation/cxl/cxl-write-labels.txt | 32 + > Documentation/cxl/cxl-zero-labels.txt | 29 + > Documentation/cxl/cxl.txt | 34 + > Documentation/cxl/human-option.txt | 8 + > Documentation/cxl/labels-description.txt | 8 + > Documentation/cxl/labels-options.txt | 17 + > Documentation/cxl/lib/cxl_new.txt | 43 + > Documentation/cxl/lib/libcxl.txt | 56 ++ > Documentation/cxl/memdev-option.txt | 4 + > Documentation/cxl/verbose-option.txt | 5 + > configure.ac | 4 + > Makefile.am | 14 +- > Makefile.am.in | 5 + > cxl/lib/private.h | 104 +++ > cxl/lib/libcxl.c | 1026 ++++++++++++++++++++++ > cxl/builtin.h | 13 + > cxl/cxl_mem.h | 189 ++++ > cxl/libcxl.h | 91 ++ > test.h | 40 +- > test/libcxl-expect.h | 13 + > util/filter.h | 2 + > util/hexdump.h | 8 + > util/json.h | 3 + > util/main.h | 3 + > cxl/cxl.c | 99 +++ > cxl/list.c | 113 +++ > cxl/memdev.c | 314 +++++++ > ndctl/bat.c | 8 +- > ndctl/test.c | 8 +- > test/ack-shutdown-count-set.c | 16 +- > test/blk_namespaces.c | 14 +- > test/core.c | 32 +- > test/dax-dev.c | 10 +- > test/dax-pmd.c | 13 +- > test/dax-poison.c | 6 +- > test/daxdev-errors.c | 2 +- > test/device-dax.c | 26 +- > test/dpa-alloc.c | 14 +- > test/dsm-fail.c | 14 +- > test/libcxl.c | 553 ++++++++++++ > test/libndctl.c | 84 +- > test/multi-pmem.c | 23 +- > test/parent-uuid.c | 13 +- > test/pmem_namespaces.c | 14 +- > test/revoke-devmem.c | 12 +- > util/filter.c | 20 + > util/hexdump.c | 53 ++ > util/json.c | 26 + > .clang-format | 162 ++++ > .gitignore | 7 +- > Documentation/cxl/Makefile.am | 61 ++ > Documentation/cxl/lib/Makefile.am | 58 ++ > README.md | 2 +- > contrib/ndctl | 109 +++ > cxl/Makefile.am | 22 + > cxl/lib/Makefile.am | 32 + > cxl/lib/libcxl.pc.in | 11 + > cxl/lib/libcxl.sym | 67 ++ > ndctl.spec.in | 49 ++ > test/Makefile.am | 15 +- > 62 files changed, 3749 insertions(+), 181 deletions(-) > create mode 100644 Documentation/cxl/cxl-list.txt > create mode 100644 Documentation/cxl/cxl-read-labels.txt > create mode 100644 Documentation/cxl/cxl-write-labels.txt > create mode 100644 Documentation/cxl/cxl-zero-labels.txt > create mode 100644 Documentation/cxl/cxl.txt > create mode 100644 Documentation/cxl/human-option.txt > create mode 100644 Documentation/cxl/labels-description.txt > create mode 100644 Documentation/cxl/labels-options.txt > create mode 100644 Documentation/cxl/lib/cxl_new.txt > create mode 100644 Documentation/cxl/lib/libcxl.txt > create mode 100644 Documentation/cxl/memdev-option.txt > create mode 100644 Documentation/cxl/verbose-option.txt > create mode 100644 cxl/lib/private.h > create mode 100644 cxl/lib/libcxl.c > create mode 100644 cxl/builtin.h > create mode 100644 cxl/cxl_mem.h > create mode 100644 cxl/libcxl.h > create mode 100644 test/libcxl-expect.h > create mode 100644 util/hexdump.h > create mode 100644 cxl/cxl.c > create mode 100644 cxl/list.c > create mode 100644 cxl/memdev.c > create mode 100644 test/libcxl.c > create mode 100644 util/hexdump.c > create mode 100644 .clang-format > create mode 100644 Documentation/cxl/Makefile.am > create mode 100644 Documentation/cxl/lib/Makefile.am > create mode 100644 cxl/Makefile.am > create mode 100644 cxl/lib/Makefile.am > create mode 100644 cxl/lib/libcxl.pc.in > create mode 100644 cxl/lib/libcxl.sym > > > base-commit: 4e646fa490ba4b782afa188dd8818b94c419924e
Changes since v2[1]: - Some minor cleanups and formatting (Ben) - Update cxl_mem.h to the latest kernel version (Ben) - Add .clang-format (Ben) - Add label commands to cxl-clu - {read,write,zero}-labels - Add libcxl and cxl-cli to the RPM spec - Add bash-completion for cxl-cli - [1]: https://lore.kernel.org/linux-cxl/20210219020331.725687-1-vishal.l.verma@intel.com/ --- These patches add a new utility and library to support CXL devices. This comprehends the kernel's sysfs layout for CXL devices, and implements a command submission harness for CXL mailbox commands via ioctl()s definied by the cxl_mem driver. These patches include: - libcxl representation of cxl_mem devices - A command submission harness through libcxl - A 'cxl-list' command which displays information about a device - cxl-{read,write,zero}-labels commands for Label Storage Area manipulation - Unit tests to exercise several libcxl APIs and perform mailbox commands. Patch 15 is an RFC - maybe this should just be dropped entirely for now until there is a concept of active/disabled memdevs. It is useful as a placeholder as it allows for a way to pre-insert checks in places we expect the device to be active or disabled. An ndctl branch with these patches is also available at [2] [2]: https://github.com/pmem/ndctl/tree/cxl-2.0v2 Ira Weiny (1): ndctl: Add CXL packages to the RPM spec Vishal Verma (20): ndctl: add .clang-format cxl: add a cxl utility and libcxl library cxl: add a local copy of the cxl_mem UAPI header libcxl: add support for command query and submission libcxl: add support for the 'Identify Device' command test: rename 'ndctl_test' to 'test_ctx' test: rename 'ndctl_test_*' helpers to 'test_*' test: introduce a libcxl unit test libcxl: add GET_HEALTH_INFO mailbox command and accessors libcxl: add support for the 'GET_LSA' command util/hexdump: Add a util helper to print a buffer in hex test/libcxl: add a test for {set, get}_lsa commands test/libcxl: introduce a command size fuzzing test libcxl: add lsa_size to cxl_memdev, and an API to retrieve it libcxl: PLACEHOLDER: add an interface to determine whether a memdev is active libcxl: add interfaces for label operations test/libcxl: add a test for cxl_memdev_{get,set}_lsa cxl: add commands to read, write, and zero labels Documentation/cxl: add library API documentation cxl-cli: add bash completion Documentation/cxl/cxl-list.txt | 64 ++ Documentation/cxl/cxl-read-labels.txt | 33 + Documentation/cxl/cxl-write-labels.txt | 32 + Documentation/cxl/cxl-zero-labels.txt | 29 + Documentation/cxl/cxl.txt | 34 + Documentation/cxl/human-option.txt | 8 + Documentation/cxl/labels-description.txt | 8 + Documentation/cxl/labels-options.txt | 17 + Documentation/cxl/lib/cxl_new.txt | 43 + Documentation/cxl/lib/libcxl.txt | 56 ++ Documentation/cxl/memdev-option.txt | 4 + Documentation/cxl/verbose-option.txt | 5 + configure.ac | 4 + Makefile.am | 14 +- Makefile.am.in | 5 + cxl/lib/private.h | 104 +++ cxl/lib/libcxl.c | 1026 ++++++++++++++++++++++ cxl/builtin.h | 13 + cxl/cxl_mem.h | 189 ++++ cxl/libcxl.h | 91 ++ test.h | 40 +- test/libcxl-expect.h | 13 + util/filter.h | 2 + util/hexdump.h | 8 + util/json.h | 3 + util/main.h | 3 + cxl/cxl.c | 99 +++ cxl/list.c | 113 +++ cxl/memdev.c | 314 +++++++ ndctl/bat.c | 8 +- ndctl/test.c | 8 +- test/ack-shutdown-count-set.c | 16 +- test/blk_namespaces.c | 14 +- test/core.c | 32 +- test/dax-dev.c | 10 +- test/dax-pmd.c | 13 +- test/dax-poison.c | 6 +- test/daxdev-errors.c | 2 +- test/device-dax.c | 26 +- test/dpa-alloc.c | 14 +- test/dsm-fail.c | 14 +- test/libcxl.c | 553 ++++++++++++ test/libndctl.c | 84 +- test/multi-pmem.c | 23 +- test/parent-uuid.c | 13 +- test/pmem_namespaces.c | 14 +- test/revoke-devmem.c | 12 +- util/filter.c | 20 + util/hexdump.c | 53 ++ util/json.c | 26 + .clang-format | 162 ++++ .gitignore | 7 +- Documentation/cxl/Makefile.am | 61 ++ Documentation/cxl/lib/Makefile.am | 58 ++ README.md | 2 +- contrib/ndctl | 109 +++ cxl/Makefile.am | 22 + cxl/lib/Makefile.am | 32 + cxl/lib/libcxl.pc.in | 11 + cxl/lib/libcxl.sym | 67 ++ ndctl.spec.in | 49 ++ test/Makefile.am | 15 +- 62 files changed, 3749 insertions(+), 181 deletions(-) create mode 100644 Documentation/cxl/cxl-list.txt create mode 100644 Documentation/cxl/cxl-read-labels.txt create mode 100644 Documentation/cxl/cxl-write-labels.txt create mode 100644 Documentation/cxl/cxl-zero-labels.txt create mode 100644 Documentation/cxl/cxl.txt create mode 100644 Documentation/cxl/human-option.txt create mode 100644 Documentation/cxl/labels-description.txt create mode 100644 Documentation/cxl/labels-options.txt create mode 100644 Documentation/cxl/lib/cxl_new.txt create mode 100644 Documentation/cxl/lib/libcxl.txt create mode 100644 Documentation/cxl/memdev-option.txt create mode 100644 Documentation/cxl/verbose-option.txt create mode 100644 cxl/lib/private.h create mode 100644 cxl/lib/libcxl.c create mode 100644 cxl/builtin.h create mode 100644 cxl/cxl_mem.h create mode 100644 cxl/libcxl.h create mode 100644 test/libcxl-expect.h create mode 100644 util/hexdump.h create mode 100644 cxl/cxl.c create mode 100644 cxl/list.c create mode 100644 cxl/memdev.c create mode 100644 test/libcxl.c create mode 100644 util/hexdump.c create mode 100644 .clang-format create mode 100644 Documentation/cxl/Makefile.am create mode 100644 Documentation/cxl/lib/Makefile.am create mode 100644 cxl/Makefile.am create mode 100644 cxl/lib/Makefile.am create mode 100644 cxl/lib/libcxl.pc.in create mode 100644 cxl/lib/libcxl.sym base-commit: 4e646fa490ba4b782afa188dd8818b94c419924e