From patchwork Tue Apr 19 16:38:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Luck, Tony" X-Patchwork-Id: 12818804 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 0F297C4707E for ; Tue, 19 Apr 2022 16:39:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354812AbiDSQmC (ORCPT ); Tue, 19 Apr 2022 12:42:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354764AbiDSQlz (ORCPT ); Tue, 19 Apr 2022 12:41:55 -0400 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5EBE5167E1; Tue, 19 Apr 2022 09:39:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650386351; x=1681922351; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=utZCRiqF7ikdREFmewY7FaeGHvf/w59lzGJRIW68qQI=; b=awxZO2s1YKnY5c3GQdJQ3hzxVlLziQDMhYKV6DC2iT9nni4rBQvbR+g+ Pa2v+LlY8j2OyBz87Yc+UEmq2H7nV+Etp4dM3lfuqm+tn0RQYPl/Q44K3 QxkdQeDMsGiG5UK+oSaPVm9Ad4w1SH+AFnJfCH/dVlBY6+cTwXD9iBfcv x0UeFGqkRVAZ38l1EY2Kel2KzEurTAEXmd5+smkvUBgKyYK9QGbp+ITMX x7AsBvyvg+jwu8bL7VNttlcUZmGCJBi0RmYD4lhPi6XOQIpH1N7mNqI1M cMUvfc/C8BJEkJk2gSL2+1l2LZ7fBRxfvOHTgCcWCYPypzs7x9wrFYjXK w==; X-IronPort-AV: E=McAfee;i="6400,9594,10322"; a="245702559" X-IronPort-AV: E=Sophos;i="5.90,273,1643702400"; d="scan'208";a="245702559" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2022 09:39:10 -0700 X-IronPort-AV: E=Sophos;i="5.90,273,1643702400"; d="scan'208";a="554802177" Received: from agluck-desk3.sc.intel.com ([172.25.222.78]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2022 09:39:10 -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 v3 11/11] platform/x86/intel/ifs: add ABI documentation for IFS Date: Tue, 19 Apr 2022 09:38:59 -0700 Message-Id: <20220419163859.2228874-12-tony.luck@intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220419163859.2228874-1-tony.luck@intel.com> References: <20220407191347.9681-1-jithu.joseph@intel.com> <20220419163859.2228874-1-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..7a753c9f2dd7 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-intel-ifs @@ -0,0 +1,39 @@ +What: /sys/devices/platform/intel_ifs./run_test +Date: April 13, 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/platform/intel_ifs./status +Date: April 13, 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/system/cpu/cpu#/ifs./details +Date: April 13, 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/platform/intel_ifs./image_version +Date: April 13, 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/bus/platform/drivers/intel_ifs./reload +Date: April 13, 2022 +KernelVersion: 5.19 +Contact: "Jithu Joseph" +Description: Write "1" > reload to reload IFS image from + /lib/firmware/intel/ifs/ff-mm-ss.scan.