From patchwork Sat Aug 13 05:32:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 12942689 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 13D02C2BB41 for ; Sat, 13 Aug 2022 05:32:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229719AbiHMFc4 (ORCPT ); Sat, 13 Aug 2022 01:32:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230147AbiHMFcy (ORCPT ); Sat, 13 Aug 2022 01:32:54 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A87815FF6; Fri, 12 Aug 2022 22:32:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660368773; x=1691904773; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tWwKqwlwjZMGb4gFh11czex8oobZlhqsXrYY+JH8bzQ=; b=k2SeLI8BW4s66qIdMeTUiac8ca7zsVjL06Kq1wlKObVflXzdLmWXiD/3 aW+bW7H9vSzb5y422cjIu5wB8Lr85JXj/ACCBM6HMkiAMUekejNCCsChG 6e4jndccIfnQUGpC/NceurTmgVxVhjqsiPiMzlkuMJZEAHcJqqD03Imwe JU4wmmmHJM0yFclIPgEOPmHPw3RALJt//YSKcx3ChRIn3IEuiOoGR4BE6 nE2HYyoKDA+GV5LY9wOpDDJ771bbpeeSNngNhNkjpslF+LL1ysnpNAAXf vX2ld4HHSQmDGWruYpgBOSB6ibTu6vSqpzKnLsmjWyI2v1DZGMvNi4qur w==; X-IronPort-AV: E=McAfee;i="6400,9594,10437"; a="278684328" X-IronPort-AV: E=Sophos;i="5.93,233,1654585200"; d="scan'208";a="278684328" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 22:32:52 -0700 X-IronPort-AV: E=Sophos;i="5.93,233,1654585200"; d="scan'208";a="582320729" Received: from jchen8-mobl.amr.corp.intel.com (HELO localhost) ([10.212.10.85]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 22:32:52 -0700 From: ira.weiny@intel.com To: Dan Williams Cc: Ira Weiny , Alison Schofield , Vishal Verma , Ben Widawsky , Steven Rostedt , Jonathan Cameron , Davidlohr Bueso , linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org Subject: [RFC PATCH 9/9] cxl/test: Simulate event log overflow Date: Fri, 12 Aug 2022 22:32:43 -0700 Message-Id: <20220813053243.757363-10-ira.weiny@intel.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220813053243.757363-1-ira.weiny@intel.com> References: <20220813053243.757363-1-ira.weiny@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org From: Ira Weiny Log overflow is marked by a separate trace message. Simulate a log with lots of messages and flag overflow until it is drained a bit. Signed-off-by: Ira Weiny --- tools/testing/cxl/test/mem.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index c5d7857ae2e5..87e6b10896c9 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -244,6 +244,15 @@ static void event_store_add_event(struct mock_event_store *es, log->nr_events++; } +static u16 log_overflow(struct mock_event_log *log) +{ + int cnt = log_rec_left(log) - 5; + + if (cnt < 0) + return 0; + return cnt; +} + /* * Get and clear event only handle 1 record at a time as this is what is * currently implemented in the main code. @@ -253,6 +262,7 @@ static int mock_get_event(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) struct cxl_get_event_payload *pl; struct mock_event_log *log; u8 log_type; + u16 nr_overflow; /* Valid request? */ if (cmd->size_in != 1) @@ -278,6 +288,20 @@ static int mock_get_event(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) if (log_rec_left(log) > 1) pl->flags |= CXL_GET_EVENT_FLAG_MORE_RECORDS; + nr_overflow = log_overflow(log); + if (nr_overflow) { + u64 ns; + + pl->flags |= CXL_GET_EVENT_FLAG_OVERFLOW; + pl->overflow_err_count = cpu_to_le16(nr_overflow); + ns = ktime_get_real_ns(); + ns -= 5000000000; /* 5s ago */ + pl->first_overflow_timestamp = cpu_to_le64(ns); + ns = ktime_get_real_ns(); + ns -= 1000000000; /* 1s ago */ + pl->last_overflow_timestamp = cpu_to_le64(ns); + } + memcpy(&pl->record, get_cur_event(log), sizeof(pl->record)); pl->record.hdr.handle = get_cur_event_handle(log); return 0; @@ -483,6 +507,18 @@ static void devm_cxl_mock_event_logs(struct cxl_memdev *cxlmd) event_store_add_event(es, CXL_EVENT_TYPE_INFO, (struct cxl_event_record_raw *)&mem_mod_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, &maint_needed); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&gen_media); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&mem_mod_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FATAL, &hardware_replace); event_store_add_event(es, CXL_EVENT_TYPE_FATAL, (struct cxl_event_record_raw *)&dram_rec);