From patchwork Thu Dec 1 00:27:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13060857 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 D6AD0C4321E for ; Thu, 1 Dec 2022 00:28:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230000AbiLAA2E (ORCPT ); Wed, 30 Nov 2022 19:28:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229800AbiLAA14 (ORCPT ); Wed, 30 Nov 2022 19:27:56 -0500 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4CC5F12D28; Wed, 30 Nov 2022 16:27:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669854459; x=1701390459; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=nJK5EYVQsbsVhEkfDMZIpLJP3ACrgI2e3ZyBYEWndGU=; b=R9cYtbFtU7B3IIKkqT1zZbay+jdMrQYOeK52h8/unGlk21upSyq6Hfl3 BkHEI090Qw9LOT7Seg7LqoLzl+1va7BXqOq0aSW2EXdqpYEiIghQ+oCmn m4NVnzwdWf24TIF3oUx1GTYCjLFWMTJIU2qxN46+xWQL4G5Bat7izbdqx 5K7ss4k7usp5OqjADMRtaJxvCSyiD87tJ6WLbuNj7Ep70HaVcTXGqKCNX sC3BPLYSX8x17Czv1n21jfFKJ5lPJTuE4ur2X6nLn5WdUsUeOp2wOuBe4 UgkNIotbw+pW1Gv7YKr8fh62ZVApm9pP8cAatTcRgLBCReelVv8RU+A98 A==; X-IronPort-AV: E=McAfee;i="6500,9779,10547"; a="317400898" X-IronPort-AV: E=Sophos;i="5.96,207,1665471600"; d="scan'208";a="317400898" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2022 16:27:36 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10547"; a="622085255" X-IronPort-AV: E=Sophos;i="5.96,207,1665471600"; d="scan'208";a="622085255" Received: from iweiny-mobl.amr.corp.intel.com (HELO localhost) ([10.251.1.240]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Nov 2022 16:27:36 -0800 From: ira.weiny@intel.com To: Dan Williams Cc: Ira Weiny , Jonathan Cameron , Alison Schofield , Vishal Verma , Ben Widawsky , Steven Rostedt , Davidlohr Bueso , Dave Jiang , linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org Subject: [PATCH V2 11/11] cxl/test: Simulate event log overflow Date: Wed, 30 Nov 2022 16:27:19 -0800 Message-Id: <20221201002719.2596558-12-ira.weiny@intel.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20221201002719.2596558-1-ira.weiny@intel.com> References: <20221201002719.2596558-1-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. Reviewed-by: Jonathan Cameron Signed-off-by: Ira Weiny Reviewed-by: Dave Jiang --- Changes from RFC Adjust for new struct changes --- tools/testing/cxl/test/events.c | 49 ++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) diff --git a/tools/testing/cxl/test/events.c b/tools/testing/cxl/test/events.c index 0bcc485e07da..ceabefb526c2 100644 --- a/tools/testing/cxl/test/events.c +++ b/tools/testing/cxl/test/events.c @@ -15,6 +15,8 @@ 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]; }; @@ -45,6 +47,7 @@ void reset_event_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 */ @@ -76,8 +79,12 @@ static void event_store_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++; @@ -87,6 +94,7 @@ 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; + u16 nr_overflow; u8 log_type; int i; @@ -118,6 +126,21 @@ int mock_get_event(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) if (!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); + + log->nr_overflow = 0; + } + return 0; } EXPORT_SYMBOL_GPL(mock_get_event); @@ -297,6 +320,30 @@ u32 cxl_mock_add_event_logs(struct cxl_dev_state *cxlds) (struct cxl_event_record_raw *)&mem_module); mes->ev_status |= CXLDEV_EVENT_STATUS_INFO; + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &maint_needed); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&gen_media); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&mem_module); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram); + /* Overflow this log */ + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes->ev_status |= CXLDEV_EVENT_STATUS_FAIL; + event_store_add_event(mes, CXL_EVENT_TYPE_FATAL, &hardware_replace); event_store_add_event(mes, CXL_EVENT_TYPE_FATAL, (struct cxl_event_record_raw *)&dram);