From patchwork Fri Aug 16 14:44:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13766455 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 004BE1BE255; Fri, 16 Aug 2024 14:45:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723819528; cv=none; b=HrZy3RiYtxkMArIdoy6+Cm1MEOgxGEkbfHUgIbGRCsFCW1+NzONlaPXirijvxcpzLZDw2K7zhq6ke3wAFMGna3X4nzk0mPc4qbwmg4wtWea1U2rFa6mVK/KcoMF5UGdzponsab/EygoI3SIggmqjo/oIzqIEPA4SYQRzG6d09c4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723819528; c=relaxed/simple; bh=7+IVoP18cbLtn1yIQ1YhwztstupGvmHQKjStLeJdicw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=CA/iOL/o96du118UgiaaHOoDjdYbQe4cHzLIw9wqQNflzhWKfnG4ApF/Ul1KrFvrEGS8QPEtPfZrcS/gF4nfVw9shpSvkRc1h4cIUATWxhqMecTwDnbHFzQdz4a3SVYiWICQt2SyLAH5QD3XvvdU533djFIxHYnOY3SeNKEvFCM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=iTp73ixg; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="iTp73ixg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1723819527; x=1755355527; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=7+IVoP18cbLtn1yIQ1YhwztstupGvmHQKjStLeJdicw=; b=iTp73ixgUEtScFASNy2Fx7Fap9FUKsyq4LkZCR53dyqcfVNRrENNq/4G H4jchL5wHwU0x1+aIvnu4AMdy5z1Tu3EafoWNvIlWN7lEZpSlr+vmI8fR oZApmYWA1LwcnZ3su070MjFMUjgdT1GWUugkNQNEaVp6WTian8gOKLkUY Ys37ydq98ZjudzbVwUJ7uevkVk+oGJlyXJxofx0cbEGaaI1py7iKalDyT c9P/PdLkvZQvUX09K12AUajtvXCe98KnmCKGeQuIxtCEenOZoWTUpmyN3 eixohNcWECzysj5i1sA71vaDpT7+E2qkKbeWmjGjYw9wxbf5C4izyZq00 A==; X-CSE-ConnectionGUID: G0RQKAs1TbyEUm5OUsn33w== X-CSE-MsgGUID: f5GxaL8QTH6DXa5xPf9buA== X-IronPort-AV: E=McAfee;i="6700,10204,11166"; a="21973132" X-IronPort-AV: E=Sophos;i="6.10,152,1719903600"; d="scan'208";a="21973132" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2024 07:45:26 -0700 X-CSE-ConnectionGUID: 5y9QDzEVT/SbNWcuos5ppQ== X-CSE-MsgGUID: VGRPxxvgRmWvVkD9uoCxXA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,152,1719903600"; d="scan'208";a="97205603" Received: from iweiny-mobl.amr.corp.intel.com (HELO localhost) ([10.125.111.52]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2024 07:45:24 -0700 From: ira.weiny@intel.com Date: Fri, 16 Aug 2024 09:44:31 -0500 Subject: [PATCH v3 23/25] cxl/mem: Trace Dynamic capacity Event Record Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240816-dcd-type2-upstream-v3-23-7c9b96cba6d7@intel.com> References: <20240816-dcd-type2-upstream-v3-0-7c9b96cba6d7@intel.com> In-Reply-To: <20240816-dcd-type2-upstream-v3-0-7c9b96cba6d7@intel.com> To: Dave Jiang , Fan Ni , Jonathan Cameron , Navneet Singh , Chris Mason , Josef Bacik , David Sterba , Petr Mladek , Steven Rostedt , Andy Shevchenko , Rasmus Villemoes , Sergey Senozhatsky , Jonathan Corbet , Andrew Morton Cc: Dan Williams , Davidlohr Bueso , Alison Schofield , Vishal Verma , Ira Weiny , linux-btrfs@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, nvdimm@lists.linux.dev X-Mailer: b4 0.15-dev-37811 X-Developer-Signature: v=1; a=ed25519-sha256; t=1723819456; l=3360; i=ira.weiny@intel.com; s=20221211; h=from:subject:message-id; bh=bCOaobk4vT2sukzM16/KG8RhUJrBwVCBo0mVzFxKSN4=; b=c+1vnFhC7hLEiMf9+y6nXW/oQKg7t0cG7hvTo04KSPcsCu/SAg8+uU9VcZaLNVhSXfT/ZJ4sA wmMaL0ZGp7QBcUAV9cKORAjvNvZoZmDwQM0eOmv2GiU25jeh0L6N6Qq X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=noldbkG+Wp1qXRrrkfY1QJpDf7QsOEthbOT7vm0PqsE= From: Navneet Singh CXL rev 3.1 section 8.2.9.2.1 adds the Dynamic Capacity Event Records. User space can use trace events for debugging of DC capacity changes. Add DC trace points to the trace log. Signed-off-by: Navneet Singh Signed-off-by: Ira Weiny Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Reviewed-by: Fan Ni --- Changes: [Alison: Update commit message] --- drivers/cxl/core/mbox.c | 4 +++ drivers/cxl/core/trace.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 69 insertions(+) diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index d43ac8eabf56..8202fc6c111d 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -977,6 +977,10 @@ static void __cxl_event_trace_record(const struct cxl_memdev *cxlmd, ev_type = CXL_CPER_EVENT_DRAM; else if (uuid_equal(uuid, &CXL_EVENT_MEM_MODULE_UUID)) ev_type = CXL_CPER_EVENT_MEM_MODULE; + else if (uuid_equal(uuid, &CXL_EVENT_DC_EVENT_UUID)) { + trace_cxl_dynamic_capacity(cxlmd, type, &record->event.dcd); + return; + } cxl_event_trace_record(cxlmd, type, ev_type, uuid, &record->event); } diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h index 9167cfba7f59..a3a5269311ee 100644 --- a/drivers/cxl/core/trace.h +++ b/drivers/cxl/core/trace.h @@ -731,6 +731,71 @@ TRACE_EVENT(cxl_poison, ) ); +/* + * DYNAMIC CAPACITY Event Record - DER + * + * CXL rev 3.0 section 8.2.9.2.1.5 Table 8-47 + */ + +#define CXL_DC_ADD_CAPACITY 0x00 +#define CXL_DC_REL_CAPACITY 0x01 +#define CXL_DC_FORCED_REL_CAPACITY 0x02 +#define CXL_DC_REG_CONF_UPDATED 0x03 +#define show_dc_evt_type(type) __print_symbolic(type, \ + { CXL_DC_ADD_CAPACITY, "Add capacity"}, \ + { CXL_DC_REL_CAPACITY, "Release capacity"}, \ + { CXL_DC_FORCED_REL_CAPACITY, "Forced capacity release"}, \ + { CXL_DC_REG_CONF_UPDATED, "Region Configuration Updated" } \ +) + +TRACE_EVENT(cxl_dynamic_capacity, + + TP_PROTO(const struct cxl_memdev *cxlmd, enum cxl_event_log_type log, + struct cxl_event_dcd *rec), + + TP_ARGS(cxlmd, log, rec), + + TP_STRUCT__entry( + CXL_EVT_TP_entry + + /* Dynamic capacity Event */ + __field(u8, event_type) + __field(u16, hostid) + __field(u8, region_id) + __field(u64, dpa_start) + __field(u64, length) + __array(u8, tag, CXL_EXTENT_TAG_LEN) + __field(u16, sh_extent_seq) + ), + + TP_fast_assign( + CXL_EVT_TP_fast_assign(cxlmd, log, rec->hdr); + + /* Dynamic_capacity Event */ + __entry->event_type = rec->event_type; + + /* DCD event record data */ + __entry->hostid = le16_to_cpu(rec->host_id); + __entry->region_id = rec->region_index; + __entry->dpa_start = le64_to_cpu(rec->extent.start_dpa); + __entry->length = le64_to_cpu(rec->extent.length); + memcpy(__entry->tag, &rec->extent.tag, CXL_EXTENT_TAG_LEN); + __entry->sh_extent_seq = le16_to_cpu(rec->extent.shared_extn_seq); + ), + + CXL_EVT_TP_printk("event_type='%s' host_id='%d' region_id='%d' " \ + "starting_dpa=%llx length=%llx tag=%s " \ + "shared_extent_sequence=%d", + show_dc_evt_type(__entry->event_type), + __entry->hostid, + __entry->region_id, + __entry->dpa_start, + __entry->length, + __print_hex(__entry->tag, CXL_EXTENT_TAG_LEN), + __entry->sh_extent_seq + ) +); + #endif /* _CXL_EVENTS_H */ #define TRACE_INCLUDE_FILE trace