From patchwork Wed Aug 18 09:08:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 12443677 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 2ECD4C4338F for ; Wed, 18 Aug 2021 09:09:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0202461058 for ; Wed, 18 Aug 2021 09:09:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231285AbhHRJKQ (ORCPT ); Wed, 18 Aug 2021 05:10:16 -0400 Received: from smtp-out2.suse.de ([195.135.220.29]:54734 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231685AbhHRJJK (ORCPT ); Wed, 18 Aug 2021 05:09:10 -0400 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 9F2D31FF8F; Wed, 18 Aug 2021 09:08:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1629277711; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jasCYoTQSante0B03rZR5hnYIqUY+XQmJp9qACF5208=; b=RqW+VsdnZvgWtGfYkfc6JJQ1r6LAMurveraQj1t+NuCGx02/8yaFNUNV1g2fwUT5im1yLm uIk4dZL03UFnGgEYzB4pqszfnWU17yqrrvP3ugf3ztVEvvyTKFwfcd7+UnzI1ULPV3wrkH 0UvOBCNCvQJuGlAoGimseaq44nELcHU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1629277711; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jasCYoTQSante0B03rZR5hnYIqUY+XQmJp9qACF5208=; b=GUYfj1r+8QqSaX+QdhxwnBHL5+0NQuD0B9yZimnGJ9HPTc3w2jcKVLxy4D0pQtLi7ypk0B YQS8IxDoNQ8ZlmCw== Received: from adalid.arch.suse.de (adalid.arch.suse.de [10.161.8.13]) by relay2.suse.de (Postfix) with ESMTP id 93F7CA3B93; Wed, 18 Aug 2021 09:08:31 +0000 (UTC) Received: by adalid.arch.suse.de (Postfix, from userid 16045) id 8478E518CF56; Wed, 18 Aug 2021 11:08:31 +0200 (CEST) From: Hannes Reinecke To: "Martin K. Petersen" Cc: Christoph Hellwig , James Bottomley , linux-scsi@vger.kernel.org, Hannes Reinecke , James Smart Subject: [PATCH 1/5] lpfc: kill lpfc_bus_reset_handler Date: Wed, 18 Aug 2021 11:08:23 +0200 Message-Id: <20210818090827.134342-2-hare@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210818090827.134342-1-hare@suse.de> References: <20210818090827.134342-1-hare@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org lpfc_bus_reset_handler is really just a loop calling lpfc_target_reset_handler() over all targets, which is what the error handler will be doing anyway. Signed-off-by: Hannes Reinecke Cc: James Smart --- drivers/scsi/lpfc/lpfc_scsi.c | 91 ----------------------------------- 1 file changed, 91 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index ee4ff4855866..56ccc66d3d5f 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -6367,95 +6367,6 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd) return status; } -/** - * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point - * @cmnd: Pointer to scsi_cmnd data structure. - * - * This routine does target reset to all targets on @cmnd->device->host. - * This emulates Parallel SCSI Bus Reset Semantics. - * - * Return code : - * 0x2003 - Error - * 0x2002 - Success - **/ -static int -lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) -{ - struct Scsi_Host *shost = cmnd->device->host; - struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; - struct lpfc_nodelist *ndlp = NULL; - struct lpfc_scsi_event_header scsi_event; - int match; - int ret = SUCCESS, status, i; - u32 logit = LOG_FCP; - - scsi_event.event_type = FC_REG_SCSI_EVENT; - scsi_event.subcategory = LPFC_EVENT_BUSRESET; - scsi_event.lun = 0; - memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); - memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); - - fc_host_post_vendor_event(shost, fc_get_event_number(), - sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); - - status = fc_block_scsi_eh(cmnd); - if (status != 0 && status != SUCCESS) - return status; - - /* - * Since the driver manages a single bus device, reset all - * targets known to the driver. Should any target reset - * fail, this routine returns failure to the midlayer. - */ - for (i = 0; i < LPFC_MAX_TARGET; i++) { - /* Search for mapped node by target ID */ - match = 0; - spin_lock_irq(shost->host_lock); - list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { - - if (vport->phba->cfg_fcp2_no_tgt_reset && - (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) - continue; - if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && - ndlp->nlp_sid == i && - ndlp->rport && - ndlp->nlp_type & NLP_FCP_TARGET) { - match = 1; - break; - } - } - spin_unlock_irq(shost->host_lock); - if (!match) - continue; - - status = lpfc_send_taskmgmt(vport, cmnd, - i, 0, FCP_TARGET_RESET); - - if (status != SUCCESS) { - lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, - "0700 Bus Reset on target %d failed\n", - i); - ret = FAILED; - } - } - /* - * We have to clean up i/o as : they may be orphaned by the TMFs - * above; or if any of the TMFs failed, they may be in an - * indeterminate state. - * We will report success if all the i/o aborts successfully. - */ - - status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); - if (status != SUCCESS) - ret = FAILED; - if (ret == FAILED) - logit = LOG_TRACE_EVENT; - - lpfc_printf_vlog(vport, KERN_ERR, logit, - "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); - return ret; -} - /** * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt * @cmnd: Pointer to scsi_cmnd data structure. @@ -7035,7 +6946,6 @@ struct scsi_host_template lpfc_template_nvme = { .eh_abort_handler = lpfc_no_handler, .eh_device_reset_handler = lpfc_no_handler, .eh_target_reset_handler = lpfc_no_handler, - .eh_bus_reset_handler = lpfc_no_handler, .eh_host_reset_handler = lpfc_no_handler, .slave_alloc = lpfc_no_slave, .slave_configure = lpfc_no_slave, @@ -7060,7 +6970,6 @@ struct scsi_host_template lpfc_template = { .eh_abort_handler = lpfc_abort_handler, .eh_device_reset_handler = lpfc_device_reset_handler, .eh_target_reset_handler = lpfc_target_reset_handler, - .eh_bus_reset_handler = lpfc_bus_reset_handler, .eh_host_reset_handler = lpfc_host_reset_handler, .slave_alloc = lpfc_slave_alloc, .slave_configure = lpfc_slave_configure,