From nobody Mon Nov 25 07:44:33 2024 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (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 11B1120EA3A; Tue, 29 Oct 2024 20:36:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730234181; cv=none; b=sUa8JmpAs+u8IFv5jd50RMzu3i0kIfBZOJH1VESPAFC3m0AJg4jjphebkT+Y5AmSgD2SLHOkbeWoLD2XMGFw8iqRJeu/gAPSFsUaUYVKyLIUJRiS9/MDINC6OPA9dF3m/BHynlLBjX6jGEGplkqfaEe1j/YnYxnpaeY//W/c9J8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730234181; c=relaxed/simple; bh=ryKKJcPTIqNhXRJn5oaYSJccpjOrLPV1ntassCvEvZo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=thwQCPXlsWMA+srWR6+rAT0/Y2OuKPNxwPpKUYCaO42w4ipWN3B/1JatdImePtZx7ZDnjTmaXyPH9kD9gphCxPE8r5cQ04GWXzRip/nFpRtCqOHBapEAPfvI+MMKmn8gdBwpISB5gGreA5QHb/XNqLWU73xExTZxNYOR8hiK598= 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=S1akx0CX; arc=none smtp.client-ip=198.175.65.9 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="S1akx0CX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730234179; x=1761770179; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=ryKKJcPTIqNhXRJn5oaYSJccpjOrLPV1ntassCvEvZo=; b=S1akx0CXcqbNRhPqAJ9d6bbtDp0iw45nEAZflkpYRV0BBQtC5jdJxZY6 GzXj29oBvdcEusGLPSgfVYLyWh+gSNJG3wwI5IllNPg3zGpMp4E+dADGF 8laZLGTRdoO3BDhPEnKEMPfvNM8IgWvfpi4IcNUbBKFcqb2CqhI02CCUZ goAb2VCg6suqdPVop3YE7FUCMQL4G4RbUmCTtqPQ/ZuHwssG+fzGsWLlT E3kDfPkWnoouswSxZ+BmpPWA2M2ClhiB22JZjK9UiZzwnb7IkcSJhDBKp D0Ck042AC0XQ55/EWggWRWj4W2cDCjLzSlhbPHC8OSekR17Yk64GpRd3o g==; X-CSE-ConnectionGUID: mNhwmyogTWCtAvKNXgiepQ== X-CSE-MsgGUID: cN45HtW8SyaRk7uOYjw64g== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="52457681" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="52457681" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2024 13:36:18 -0700 X-CSE-ConnectionGUID: eLc4KMtcTBOOi4A6DfULgg== X-CSE-MsgGUID: 51fiLA1zRUmwnUGX3JbdiA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,243,1725346800"; d="scan'208";a="119561346" Received: from ldmartin-desk2.corp.intel.com (HELO localhost) ([10.125.108.77]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2024 13:36:17 -0700 From: ira.weiny@intel.com Date: Tue, 29 Oct 2024 15:35:00 -0500 Subject: [PATCH v5 25/27] cxl/mem: Trace Dynamic capacity Event Record Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241029-dcd-type2-upstream-v5-25-8739cb67c374@intel.com> References: <20241029-dcd-type2-upstream-v5-0-8739cb67c374@intel.com> In-Reply-To: <20241029-dcd-type2-upstream-v5-0-8739cb67c374@intel.com> To: Dave Jiang , Fan Ni , Jonathan Cameron , Navneet Singh , Jonathan Corbet , Andrew Morton Cc: Dan Williams , Davidlohr Bueso , Alison Schofield , Vishal Verma , Ira Weiny , linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org X-Mailer: b4 0.15-dev-2a633 X-Developer-Signature: v=1; a=ed25519-sha256; t=1730234086; l=3635; i=ira.weiny@intel.com; s=20221211; h=from:subject:message-id; bh=xpnq087mIDPtTbUC6b/M7wTZVMYGc6/vP1dhcs8GdXQ=; b=H5E1OjfKHr5DCPFX61UbY3oAGOj2g/IbFzZYVZNfgEta9HmR1nIzGrOZdj3+wjvA8mUjzJlDn X2CNbM5Zrk1DhlnA92+YPtfQczewWwf6igrjqgFJyArL4QeHxWAdqLW 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 Reviewed-by: Jonathan Cameron Reviewed-by: Dave Jiang Reviewed-by: Fan Ni Co-developed-by: Ira Weiny Signed-off-by: Ira Weiny --- Changes: [Jonathan: use %pU for tag] --- 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 5cfa5e34e679b5665650d8b2ada47018e5facb1c..e1cfe4b16d5967d27ee6e38059d= c7441c5d3341c 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -995,6 +995,10 @@ static void __cxl_event_trace_record(const struct cxl_= memdev *cxlmd, ev_type =3D CXL_CPER_EVENT_DRAM; else if (uuid_equal(uuid, &CXL_EVENT_MEM_MODULE_UUID)) ev_type =3D 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; + } =20 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 8672b42ee4d1b376063b09d29922fcce83a70168..d4526f06cf2a2d0a4b4bc5f9e00= 238aa43a16e35 100644 --- a/drivers/cxl/core/trace.h +++ b/drivers/cxl/core/trace.h @@ -731,6 +731,71 @@ TRACE_EVENT(cxl_poison, ) ); =20 +/* + * Dynamic Capacity Event Record - DER + * + * CXL rev 3.1 section 8.2.9.2.1.6 Table 8-50 + */ + +#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 =3D rec->event_type; + + /* DCD event record data */ + __entry->hostid =3D le16_to_cpu(rec->host_id); + __entry->region_id =3D rec->region_index; + __entry->dpa_start =3D le64_to_cpu(rec->extent.start_dpa); + __entry->length =3D le64_to_cpu(rec->extent.length); + memcpy(__entry->tag, &rec->extent.tag, CXL_EXTENT_TAG_LEN); + __entry->sh_extent_seq =3D le16_to_cpu(rec->extent.shared_extn_seq); + ), + + CXL_EVT_TP_printk("event_type=3D'%s' host_id=3D'%d' region_id=3D'%d' " \ + "starting_dpa=3D%llx length=3D%llx tag=3D%pU " \ + "shared_extent_sequence=3D%d", + show_dc_evt_type(__entry->event_type), + __entry->hostid, + __entry->region_id, + __entry->dpa_start, + __entry->length, + __entry->tag, + __entry->sh_extent_seq + ) +); + #endif /* _CXL_EVENTS_H */ =20 #define TRACE_INCLUDE_FILE trace --=20 2.47.0