From patchwork Mon Apr 19 11:01:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kashyap Desai X-Patchwork-Id: 12211515 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=-18.6 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,URIBL_BLOCKED,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 5A882C433ED for ; Mon, 19 Apr 2021 11:03:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DFF461279 for ; Mon, 19 Apr 2021 11:03:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238568AbhDSLD3 (ORCPT ); Mon, 19 Apr 2021 07:03:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238588AbhDSLD0 (ORCPT ); Mon, 19 Apr 2021 07:03:26 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60343C061760 for ; Mon, 19 Apr 2021 04:02:56 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id u7so15666443plr.6 for ; Mon, 19 Apr 2021 04:02:56 -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=blDnLX6D1Iw33K6D5HvrZugm60HpHCunzcDgXveyY4s=; b=SfUNq4WYqVfwMGi0InAiKNlw57PUL/fWLP+RbnOqEWrtQSGWx8fsxNDzicQBkpbQw6 b/Yak7Yq6Pv6MHxXay1AbFAEmmdhnrObuwZw0G1EQXfgTuBB75x2awtBMd5JtkeKXXVf QtDtAkXzfvzsonpKehqAB33SKqdk+3fQxXsQI= 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=blDnLX6D1Iw33K6D5HvrZugm60HpHCunzcDgXveyY4s=; b=lNC6XKgOekvPg8tWtIdjz+vIBD3krHIMPkU67HjtT3GVxUi0HmmDp9rRml6KWU/3mj wuP02c52YGajRNxjQfx5A7Gh3GHi8PSnToAnZJbxHZFI519WUtJV+Wh4N2/aBvF5Xc3f 4+blCPJ3ovhIH6S/24Gs3Sd55Kz/Vam+/al4ol9NI4GdVS0NeUXgBIWdzeVcdeTLLVgo P9+J3ff5lvKKAHx/lXJyEo/5zXvu3h9EtV3fgIOFLR9K37zVqbIjJxAWZtxdS2jgdLOH fOPtUOu11uyj6GDuEbK3HIby/sMs5kNdpCghUqQ5OBucHQ6nstuFhYfGTKPxRHqtAap+ L4eQ== X-Gm-Message-State: AOAM531RL4gysndGDk+iCnsIGawrvHXkiKM+KWHtLdKfuxT1baoZ/XPR tDrUo5tkCH5ub20wGmhLt74i02EStEkuEWWVMbVK2qewJZ+qGgogmF4h+r+2jiub0fDWg1Nb4V5 3+Vu0M1g7xsqjAKgCSLx4uTlGE+q3y79En3AUdQy6HmMT90xI97PzxBCW7wK+4e1eHiDkPls1SN Z9do8M0Edn X-Google-Smtp-Source: ABdhPJwCp7w1svvZFP7YNSUHde+kenATEMkjgSYwoQVSB4Xf49VY7t1LU+anbxdJh5fnDhxN27b20g== X-Received: by 2002:a17:902:9a84:b029:ea:e627:f7c2 with SMTP id w4-20020a1709029a84b02900eae627f7c2mr22249494plp.57.1618830175476; Mon, 19 Apr 2021 04:02:55 -0700 (PDT) Received: from drv-bst-rhel8.dhcp.broadcom.net ([192.19.234.250]) by smtp.gmail.com with ESMTPSA id k13sm11825736pfc.50.2021.04.19.04.02.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Apr 2021 04:02:54 -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 v3 19/24] mpi3mr: print pending host ios for debug Date: Mon, 19 Apr 2021 16:31:51 +0530 Message-Id: <20210419110156.1786882-20-kashyap.desai@broadcom.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20210419110156.1786882-1-kashyap.desai@broadcom.com> References: <20210419110156.1786882-1-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 Cc: sathya.prakash@broadcom.com Reviewed-by: Himanshu Madhani --- 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 01b82bd2e8df..56f1e59e86cc 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -334,6 +334,37 @@ 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 @@ -2367,6 +2398,43 @@ 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 @@ -2384,6 +2452,7 @@ static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) int retval = FAILED, ret; + mpi3mr_print_pending_host_io(mrioc); ret = mpi3mr_soft_reset_handler(mrioc, MPI3MR_RESET_FROM_EH_HOS, 1); if (ret)