From patchwork Thu Jan 5 23:37:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13090697 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 06A80C54EF0 for ; Thu, 5 Jan 2023 23:38:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236386AbjAEXiV (ORCPT ); Thu, 5 Jan 2023 18:38:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236301AbjAEXiK (ORCPT ); Thu, 5 Jan 2023 18:38:10 -0500 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D9E04F108; Thu, 5 Jan 2023 15:38:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1672961888; x=1704497888; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=QvhtlK4SYmJQvhKAlXbD4WLjYDIsGYSH3KPw5DihPkE=; b=nVLw8tMz2wmSm2dqCjRJR/1Og0yeZncMGMdnBxtZcEM+Pv1s20knjrPn UORhq6BS5YEN+kvtOApT7teFFuJLi7qr9eg9Ao9AfNpLozwnzLpr32l+J R0+XkZ7Fh2as/4V6fmVX+OkyaMdv7qPYdViF/bXELG2hdHVNOwb30lG3V J7ABgVGbxBzLqQTwlAB6Httstm7yy/MfbysBK4a/I13lc3LDfyVQF3i9L uICmxpV7Vj4/Dvet73xjhB+F8PMzZ7c2zau2/lPbn6PrrhgIpm5u1FW34 J9Nvsfy+hGl0XCyghrd1+P+Wyqeu5CZ9D9mZc+V70QSaWMQ32XNV2dAHb w==; X-IronPort-AV: E=McAfee;i="6500,9779,10581"; a="305872027" X-IronPort-AV: E=Sophos;i="5.96,303,1665471600"; d="scan'208";a="305872027" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2023 15:38:08 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10581"; a="798093088" X-IronPort-AV: E=Sophos;i="5.96,303,1665471600"; d="scan'208";a="798093088" Received: from iweiny-mobl.amr.corp.intel.com (HELO localhost) ([10.212.87.74]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2023 15:38:07 -0800 From: Ira Weiny Date: Thu, 05 Jan 2023 15:37:58 -0800 Subject: [PATCH v5 8/8] cxl/test: Simulate event log overflow MIME-Version: 1.0 Message-Id: <20221216-cxl-ev-log-v5-8-180c618ed5d1@intel.com> References: <20221216-cxl-ev-log-v5-0-180c618ed5d1@intel.com> In-Reply-To: <20221216-cxl-ev-log-v5-0-180c618ed5d1@intel.com> To: Dan Williams Cc: Bjorn Helgaas , Alison Schofield , Vishal Verma , Ira Weiny , Davidlohr Bueso , Jonathan Cameron , Dave Jiang , Ben Widawsky , Steven Rostedt , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org X-Mailer: b4 0.12-dev-cc11a X-Developer-Signature: v=1; a=ed25519-sha256; t=1672961882; l=4119; i=ira.weiny@intel.com; s=20221211; h=from:subject:message-id; bh=QvhtlK4SYmJQvhKAlXbD4WLjYDIsGYSH3KPw5DihPkE=; b=KuAJ5anv2nw8kxqSaDoiuiqUXVBaVm6no2luHReVvIml1W9p9VjwjYybW2WdZJEsxaOvR8LWqT7r 2TAZ0PQGBKAAMZCKjadCBfJy5qGqe/Aap/tLhgdXeL5WkkUUGDao X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=noldbkG+Wp1qXRrrkfY1QJpDf7QsOEthbOT7vm0PqsE= Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org Log overflow is marked by a separate trace message. Simulate a log with lots of messages and flag overflow until space is cleared. Reviewed-by: Dan Williams Reviewed-by: Jonathan Cameron Signed-off-by: Ira Weiny --- Changes from V4: Pick up tag --- tools/testing/cxl/test/mem.c | 50 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 49 insertions(+), 1 deletion(-) diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 73db722a8879..b2327a8de4a6 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -78,6 +78,8 @@ struct mock_event_log { u16 clear_idx; u16 cur_idx; u16 nr_events; + u16 nr_overflow; + u16 overflow_reset; struct cxl_event_record_raw *events[CXL_TEST_EVENT_CNT_MAX]; }; @@ -116,6 +118,7 @@ static void event_reset_log(struct mock_event_log *log) { log->cur_idx = 0; log->clear_idx = 0; + log->nr_overflow = log->overflow_reset; } /* Handle can never be 0 use 1 based indexing for handle */ @@ -147,8 +150,12 @@ static void mes_add_event(struct mock_event_store *mes, return; log = &mes->mock_logs[log_type]; - if (WARN_ON(log->nr_events >= CXL_TEST_EVENT_CNT_MAX)) + + if ((log->nr_events + 1) > CXL_TEST_EVENT_CNT_MAX) { + log->nr_overflow++; + log->overflow_reset = log->nr_overflow; return; + } log->events[log->nr_events] = event; log->nr_events++; @@ -159,6 +166,7 @@ static int mock_get_event(struct cxl_dev_state *cxlds, { struct cxl_get_event_payload *pl; struct mock_event_log *log; + u16 nr_overflow; u8 log_type; int i; @@ -191,6 +199,19 @@ static int mock_get_event(struct cxl_dev_state *cxlds, if (!event_log_empty(log)) pl->flags |= CXL_GET_EVENT_FLAG_MORE_RECORDS; + if (log->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); + } + return 0; } @@ -231,6 +252,9 @@ static int mock_clear_event(struct cxl_dev_state *cxlds, } } + if (log->nr_overflow) + log->nr_overflow = 0; + /* Clear events */ log->clear_idx += pl->nr_recs; return 0; @@ -353,6 +377,30 @@ static void cxl_mock_add_event_logs(struct mock_event_store *mes) (struct cxl_event_record_raw *)&mem_module); mes->ev_status |= CXLDEV_EVENT_STATUS_INFO; + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &maint_needed); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&gen_media); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&mem_module); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram); + /* Overflow this log */ + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes->ev_status |= CXLDEV_EVENT_STATUS_FAIL; + mes_add_event(mes, CXL_EVENT_TYPE_FATAL, &hardware_replace); mes_add_event(mes, CXL_EVENT_TYPE_FATAL, (struct cxl_event_record_raw *)&dram);