From patchwork Thu Jul 1 20:09:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Verma, Vishal L" X-Patchwork-Id: 12354773 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9851229CA for ; Thu, 1 Jul 2021 20:10:15 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10032"; a="205606870" X-IronPort-AV: E=Sophos;i="5.83,315,1616482800"; d="scan'208";a="205606870" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jul 2021 13:10:13 -0700 X-IronPort-AV: E=Sophos;i="5.83,315,1616482800"; d="scan'208";a="409271277" Received: from anandvig-mobl.amr.corp.intel.com (HELO vverma7-desk.amr.corp.intel.com) ([10.254.38.85]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jul 2021 13:10:12 -0700 From: Vishal Verma To: , Cc: Dan Williams , Ben Widawsky , Alison Schofield , Ira Weiny , Vishal Verma Subject: [ndctl PATCH v3 00/21] Initial CXL support Date: Thu, 1 Jul 2021 14:09:44 -0600 Message-Id: <20210701201005.3065299-1-vishal.l.verma@intel.com> X-Mailer: git-send-email 2.31.1 Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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