From patchwork Fri Apr 22 20:02:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Luck, Tony" X-Patchwork-Id: 12824106 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 526F9C43217 for ; Fri, 22 Apr 2022 22:08:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231991AbiDVWLE (ORCPT ); Fri, 22 Apr 2022 18:11:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231981AbiDVWJf (ORCPT ); Fri, 22 Apr 2022 18:09:35 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFE932D823C; Fri, 22 Apr 2022 13:56:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650660986; x=1682196986; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cwJd5e6aeRwgU9xPsGnRNV1wC06YL4Fz8JBExprqrBA=; b=MzL1M7mrxG9O455ycAVFH0PzUG2znA0DkXqw9Wgm3CdpcZsN9QJq/ma7 cp2mIJuZGHVgCuclLckCx0PpqFLQlLNHY4YFNZoz3SEoIfbtDFvMoszUb mH8zdtBxQspUqbCr8wUbhbBqRsy30JjXpJ5A0r7zPN7wUGHO0sVMM2avP lMVfHcdhGXJODsQqWTjVz3o1/R3hw3KfEOeA04Cj1MyV1XojLQqhT5Jiv n5p6rQ97Sh03sMCOc1Lo1AU6hY37B7ZkS/gvsSZXgy9scpKxzvIGyGrCZ VdAftODcfUtZahnwW1I6CcESz8rVd/+XS/cVzcaoXS2Azkit7BP/pnpfL A==; X-IronPort-AV: E=McAfee;i="6400,9594,10324"; a="289897476" X-IronPort-AV: E=Sophos;i="5.90,282,1643702400"; d="scan'208";a="289897476" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2022 13:02:29 -0700 X-IronPort-AV: E=Sophos;i="5.90,282,1643702400"; d="scan'208";a="511719367" Received: from agluck-desk3.sc.intel.com ([172.25.222.78]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2022 13:02:29 -0700 From: Tony Luck To: hdegoede@redhat.com, markgross@kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, corbet@lwn.net, gregkh@linuxfoundation.org, andriy.shevchenko@linux.intel.com, jithu.joseph@intel.com, ashok.raj@intel.com, tony.luck@intel.com, rostedt@goodmis.org, dan.j.williams@intel.com, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, platform-driver-x86@vger.kernel.org, patches@lists.linux.dev, ravi.v.shankar@intel.com Subject: [PATCH v4 10/10] platform/x86/intel/ifs: add ABI documentation for IFS Date: Fri, 22 Apr 2022 13:02:19 -0700 Message-Id: <20220422200219.2843823-11-tony.luck@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220422200219.2843823-1-tony.luck@intel.com> References: <20220419163859.2228874-1-tony.luck@intel.com> <20220422200219.2843823-1-tony.luck@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org From: Jithu Joseph Add the sysfs attributes in ABI/testing for In-Field Scan. Reviewed-by: Dan Williams Signed-off-by: Jithu Joseph Co-developed-by: Tony Luck Signed-off-by: Tony Luck --- .../ABI/testing/sysfs-platform-intel-ifs | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-platform-intel-ifs diff --git a/Documentation/ABI/testing/sysfs-platform-intel-ifs b/Documentation/ABI/testing/sysfs-platform-intel-ifs new file mode 100644 index 000000000000..486d6d2ff8a0 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-intel-ifs @@ -0,0 +1,39 @@ +What: /sys/devices/virtual/misc/intel_ifs_/run_test +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" +Description: Write to trigger IFS test for one online core. + Note that the test is per core. The cpu# can be + for any thread on the core. Running on one thread + completes the test for the core containing that thread. + Example: to test the core containing cpu5: echo 5 > + /sys/devices/platform/intel_ifs./run_test + +What: /sys/devices/virtual/misc/intel_ifs_/status +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" +Description: The status of the last test. It can be one of "pass", "fail" + or "untested". + +What: /sys/devices/virtual/misc/intel_ifs_/details +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" +Description: Additional information regarding the last test. The details file reports + the hex value of the SCAN_STATUS MSR. Note that the error_code field + may contain driver defined software code not defined in the Intel SDM. + +What: /sys/devices/virtual/misc/intel_ifs_/image_version +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" +Description: Version (hexadecimal) of loaded IFS binary image. If no scan image + is loaded reports "none". + +What: /sys/devices/virtual/misc/intel_ifs_/reload +Date: April 21 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" +Description: Write "1" (or "y" or "Y") to reload the IFS image from + /lib/firmware/intel/ifs/ff-mm-ss.scan.