From patchwork Thu May 20 15:25:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kashyap Desai X-Patchwork-Id: 12270903 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,MIME_HEADER_CTYPE_ONLY, SPF_HELO_NONE,SPF_PASS,T_TVD_MIME_NO_HEADERS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D49CEC433ED for ; Thu, 20 May 2021 15:23:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B45006121E for ; Thu, 20 May 2021 15:23:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232377AbhETPYU (ORCPT ); Thu, 20 May 2021 11:24:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39642 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235367AbhETPXl (ORCPT ); Thu, 20 May 2021 11:23:41 -0400 Received: from mail-pf1-x435.google.com (mail-pf1-x435.google.com [IPv6:2607:f8b0:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D486C061761 for ; Thu, 20 May 2021 08:22:19 -0700 (PDT) Received: by mail-pf1-x435.google.com with SMTP id x18so8313060pfi.9 for ; Thu, 20 May 2021 08:22:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8gZsfxOjdhpEQw6hPdK38WOZt4Vs5bzklfSXOEmOrVg=; b=gwWqw2fdUZaYj3FKTB60V96JZpAMxezIKAJvVON169hoAAQAXxmT1QeGLL+tAPnTFG obfvmzNhMNgbZ2I/SBHeCxUmjVKexMjratH9NIGBNDzGQkmAQ86MN7DzRxyfl39mRTeB AutiAp7PZBWqI8eS4VyyaHMjt/KvU6n+GHUKw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8gZsfxOjdhpEQw6hPdK38WOZt4Vs5bzklfSXOEmOrVg=; b=YFu+o+ijRX4piPxbA/Nn0mivPwCpb5/3dE+tuiXnR5rGhfJcivthFL2yNrngdHLR0J qWHw5A6l8D+AXn8ie301I2WSaBggcSWqTfin2QPwTMsziytH0hoRBvr8/VKrdpYytYcC wdFQk6kI8FZKzxoC7jThP9+k6bXrqwwNCcIgtasf7TW+XtDeJ2UAsOVDlMbaAQ2zu7K7 xZqmlkyRNO1BpowSJJD/DoeTaGn/5+eOJq7zDepQUiZNr8Ilzuw9hUNUrlNj0j9N0xD1 8ja7h+cU/YyrFBIS0oYspexSkzlSYSVFM3NUwP/lGgQKxR6yLF/UvwwhSdrDcQyItd4e dc1Q== X-Gm-Message-State: AOAM533cKK7m/5AIMNQ/bB0n43Tl1Zc527JetJ2c57gXMlT2PMtqIgpT 9Ty4TC4C0UHFFhDJAC5+Vy/UooLLJ9d8DAQl55RFzxK2/C/e/oCwkibSRVqHcNM+Eph1u2LtITL 7UnHP54By1/D4WWUE0av0NXS5ZmJcl/KXPk3XHo2J1L/sfxwpmdJnQ1G2f67COPs6A2xyaYJFv2 JMdYxT3A== X-Google-Smtp-Source: ABdhPJy/S9qeP4CMK+KMbSc1gAdJvA+OPe/NLiffIjf4bkPR0dnhhx9v8nxIZ/uH9wfL3TX7E0wKSQ== X-Received: by 2002:a62:81c5:0:b029:2d9:367b:b84a with SMTP id t188-20020a6281c50000b02902d9367bb84amr5294064pfd.32.1621524138380; Thu, 20 May 2021 08:22:18 -0700 (PDT) Received: from drv-bst-rhel8.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id s8sm2250557pfe.112.2021.05.20.08.22.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 May 2021 08:22:17 -0700 (PDT) From: Kashyap Desai To: linux-scsi@vger.kernel.org Cc: jejb@linux.ibm.com, martin.petersen@oracle.com, steve.hagan@broadcom.com, peter.rivera@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, Kashyap Desai , sathya.prakash@broadcom.com Subject: [PATCH v6 19/24] mpi3mr: print pending host ios for debug Date: Thu, 20 May 2021 20:55:40 +0530 Message-Id: <20210520152545.2710479-20-kashyap.desai@broadcom.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20210520152545.2710479-1-kashyap.desai@broadcom.com> References: <20210520152545.2710479-1-kashyap.desai@broadcom.com> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Signed-off-by: Kashyap Desai Reviewed-by: Tomas Henzl Reviewed-by: Hannes Reinecke Reviewed-by: Himanshu Madhani Cc: sathya.prakash@broadcom.com --- drivers/scsi/mpi3mr/mpi3mr_os.c | 69 +++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 8dd8fb7..e36a502 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -333,6 +333,37 @@ void mpi3mr_invalidate_devhandles(struct mpi3mr_ioc *mrioc) } } +/** + * mpi3mr_print_scmd - print individual SCSI command + * @rq: Block request + * @data: Adapter instance reference + * @reserved: N/A. Currently not used + * + * Print the SCSI command details if it is in LLD scope. + * + * Return: true always. + */ +static bool mpi3mr_print_scmd(struct request *rq, + void *data, bool reserved) +{ + struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; + struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); + struct scmd_priv *priv = NULL; + + if (scmd) { + priv = scsi_cmd_priv(scmd); + if (!priv->in_lld_scope) + goto out; + + ioc_info(mrioc, "%s :Host Tag = %d, qid = %d\n", + __func__, priv->host_tag, priv->req_q_idx + 1); + scsi_print_command(scmd); + } + +out: + return(true); +} + /** * mpi3mr_flush_scmd - Flush individual SCSI command * @rq: Block request @@ -2341,6 +2372,43 @@ static int mpi3mr_map_queues(struct Scsi_Host *shost) mrioc->pdev, mrioc->op_reply_q_offset); } +/** + * mpi3mr_get_fw_pending_ios - Calculate pending I/O count + * @mrioc: Adapter instance reference + * + * Calculate the pending I/Os for the controller and return. + * + * Return: Number of pending I/Os + */ +static inline int mpi3mr_get_fw_pending_ios(struct mpi3mr_ioc *mrioc) +{ + u16 i; + uint pend_ios = 0; + + for (i = 0; i < mrioc->num_op_reply_q; i++) + pend_ios += atomic_read(&mrioc->op_reply_qinfo[i].pend_ios); + return pend_ios; +} + +/** + * mpi3mr_print_pending_host_io - print pending I/Os + * @mrioc: Adapter instance reference + * + * Print number of pending I/Os and each I/O details prior to + * reset for debug purpose. + * + * Return: Nothing + */ +static void mpi3mr_print_pending_host_io(struct mpi3mr_ioc *mrioc) +{ + struct Scsi_Host *shost = mrioc->shost; + + ioc_info(mrioc, "%s :Pending commands prior to reset: %d\n", + __func__, mpi3mr_get_fw_pending_ios(mrioc)); + blk_mq_tagset_busy_iter(&shost->tag_set, + mpi3mr_print_scmd, (void *)mrioc); +} + /** * mpi3mr_eh_host_reset - Host reset error handling callback * @scmd: SCSI command reference @@ -2357,6 +2425,7 @@ static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) struct mpi3mr_ioc *mrioc = shost_priv(scmd->device->host); int retval = FAILED, ret; + mpi3mr_print_pending_host_io(mrioc); ret = mpi3mr_soft_reset_handler(mrioc, MPI3MR_RESET_FROM_EH_HOS, 1); if (ret)