From patchwork Wed Nov 30 08:39:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13059575 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 63E46C47088 for ; Wed, 30 Nov 2022 08:39:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235563AbiK3Ije (ORCPT ); Wed, 30 Nov 2022 03:39:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235577AbiK3Ijd (ORCPT ); Wed, 30 Nov 2022 03:39:33 -0500 Received: from esa1.hgst.iphmx.com (esa1.hgst.iphmx.com [68.232.141.245]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE1A3264AE for ; Wed, 30 Nov 2022 00:39:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1669797571; x=1701333571; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=zja+LbzYcnF6BQtQTskwMRlkiXgPBiT+s3IzI+yyHjg=; b=TK86O57dohGHos96vMoek+7yJKb0Uwufog9lar0MeaRDSpbsctNqBFVc d2ggiFNztz3Eq5E+ZQjMBC9iLJU19WsRpA8nsE5mUOEB8vS/4+oyZEX+6 KbPiGAES+Rrdm/Pp6Fwh2uKMpmnkKbbeohXuQpZ8F3BKNW35DXycRzso8 uRtPSSkEb7q2L8hfuc7MuqFKrR4pFp56x+qWFQBT2MyAKMgIanF35PkGy VCOyFCo9xnacyhfqTreooSt9evGMu9xXOaM4FkYBfWMUAFfohhMtyF7aM U0XoqjrkvMGzrkhDsv7yNGmxH3975CyHLXmq1gHdKgNo+1gocFODbBNRn Q==; X-IronPort-AV: E=Sophos;i="5.96,205,1665417600"; d="scan'208";a="329635178" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 30 Nov 2022 16:39:31 +0800 IronPort-SDR: s9ENqsMyGQOQOMjAJaDI91vKK+MpnLuJG5jZBP8qwuNo7ATi2bEbaYmcZvXK32LUc8KlxkpJab Us6YDQ+gCZncuLpKbJvS1JLTDc4KYFwCHQeNPBXxHFch67g6dsiX7K6BbkMXQVAoJioOOJY+rC v31yYhAKpetMnX1f3LT8Oer87UPfffpB0EtDAMaW9Qt+9xPpmZBESeUsyWQRaqa2xxkdXzEtaG aXms4qybYEh0Zpil0ylC28HeWzSZuBI+0jkXCqlkNR665A35cJDGo2oW8seylyywwR5duN+qXX SlY= Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 29 Nov 2022 23:58:10 -0800 IronPort-SDR: 0Q9kjnvtSik4yIsjv1DDmb2AhjekZElK3QORtkAU5tLSTfV2fNo5CBT/L4hmizVIwPO4nercnd AVfZOJMG1AZ9iK8poUHnml/PIryrMgnxSaeQoQ5M0MHh/EvgJu2Kzk93e9eSs2jhu/fPc/C16l wpMEyzlPv17ZYRRV1jOUEpZLb6VkpjN8gtjbiWIgzVWKfAtEbFpm10wusJtlFUmsCMm7Gkn3Yd g7e/jxDjSjLPdb1Mk+HgGmsypNq6f81XD6dLl+tYMoyzXQwdZ3o/OqFcCTVxRjL4ozjmrhfDSP K3k= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.72]) by uls-op-cesaip01.wdc.com with ESMTP; 30 Nov 2022 00:39:31 -0800 From: Johannes Thumshirn To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Damien Le Moal , Hannes Reinecke , Johannes Thumshirn Subject: [PATCH v4] scsi: sd_zbc: trace zone append emulation Date: Wed, 30 Nov 2022 00:39:21 -0800 Message-Id: <39540065afb936255236311fc6c93f67a7805bf6.1669797508.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Add tracepoints to the SCSI zone append emulation, in order to trace the zone start to write-pointer aligned LBA translation and the corresponding completion. Signed-off-by: Johannes Thumshirn --- Changes to v3: - Move tracepoints into own sd trace events header Changes to v2: - Fix linking when SCSI is a module Changes to v1: - Fix style issues pointed out by Damien --- drivers/scsi/scsi_trace.c | 1 + drivers/scsi/sd_zbc.c | 6 +++ include/trace/events/sd.h | 81 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+) create mode 100644 include/trace/events/sd.h diff --git a/drivers/scsi/scsi_trace.c b/drivers/scsi/scsi_trace.c index 41a950075913..224b38c0fb0f 100644 --- a/drivers/scsi/scsi_trace.c +++ b/drivers/scsi/scsi_trace.c @@ -389,3 +389,4 @@ scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len) return scsi_trace_misc(p, cdb, len); } } +EXPORT_SYMBOL(scsi_trace_parse_cdb); diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index bd15624c6322..8985681cffbd 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -18,6 +18,9 @@ #include #include +#define CREATE_TRACE_POINTS +#include + #include "sd.h" /** @@ -450,6 +453,7 @@ blk_status_t sd_zbc_prepare_zone_append(struct scsi_cmnd *cmd, sector_t *lba, break; } + trace_scsi_prepare_zone_append(cmd, *lba, wp_offset); *lba += wp_offset; } spin_unlock_irqrestore(&sdkp->zones_wp_offset_lock, flags); @@ -558,6 +562,8 @@ static unsigned int sd_zbc_zone_wp_update(struct scsi_cmnd *cmd, switch (op) { case REQ_OP_ZONE_APPEND: + trace_scsi_zone_wp_update(cmd, rq->__sector, + sdkp->zones_wp_offset[zno], good_bytes); rq->__sector += sdkp->zones_wp_offset[zno]; fallthrough; case REQ_OP_WRITE_ZEROES: diff --git a/include/trace/events/sd.h b/include/trace/events/sd.h new file mode 100644 index 000000000000..0b11fed8327b --- /dev/null +++ b/include/trace/events/sd.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2022 Western Digital Corporation or its affiliates. + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM sd + +#if !defined(_SD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#include +#include +#include +#include + +TRACE_EVENT(scsi_prepare_zone_append, + + TP_PROTO(struct scsi_cmnd *cmnd, sector_t lba, + unsigned int wp_offset), + + TP_ARGS(cmnd, lba, wp_offset), + + TP_STRUCT__entry( + __field( unsigned int, host_no ) + __field( unsigned int, channel ) + __field( unsigned int, id ) + __field( unsigned int, lun ) + __field( sector_t, lba ) + __field( unsigned int, wp_offset ) + ), + + TP_fast_assign( + __entry->host_no = cmnd->device->host->host_no; + __entry->channel = cmnd->device->channel; + __entry->id = cmnd->device->id; + __entry->lun = cmnd->device->lun; + __entry->lba = lba; + __entry->wp_offset = wp_offset; + ), + + TP_printk("host_no=%u, channel=%u id=%u lun=%u lba=%llu wp_offset=%u", + __entry->host_no, __entry->channel, __entry->id, + __entry->lun, __entry->lba, __entry->wp_offset) +); + +TRACE_EVENT(scsi_zone_wp_update, + + TP_PROTO(struct scsi_cmnd *cmnd, sector_t rq_sector, + unsigned int wp_offset, unsigned int good_bytes), + + TP_ARGS(cmnd, rq_sector, wp_offset, good_bytes), + + TP_STRUCT__entry( + __field( unsigned int, host_no ) + __field( unsigned int, channel ) + __field( unsigned int, id ) + __field( unsigned int, lun ) + __field( sector_t, rq_sector ) + __field( unsigned int, wp_offset ) + __field( unsigned int, good_bytes ) + ), + + TP_fast_assign( + __entry->host_no = cmnd->device->host->host_no; + __entry->channel = cmnd->device->channel; + __entry->id = cmnd->device->id; + __entry->lun = cmnd->device->lun; + __entry->rq_sector = rq_sector; + __entry->wp_offset = wp_offset; + __entry->good_bytes = good_bytes; + ), + + TP_printk("host_no=%u, channel=%u id=%u lun=%u rq_sector=%llu" \ + " wp_offset=%u good_bytes=%u", + __entry->host_no, __entry->channel, __entry->id, + __entry->lun, __entry->rq_sector, __entry->wp_offset, + __entry->good_bytes) +); +#endif /* _SD_TRACE_H */ + +/* This part must be outside protection */ +#include +