From patchwork Thu Feb 17 15:42:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 544233 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 892A7C4332F for ; Thu, 17 Feb 2022 15:48:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242765AbiBQPtI (ORCPT ); Thu, 17 Feb 2022 10:49:08 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:59936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242762AbiBQPtG (ORCPT ); Thu, 17 Feb 2022 10:49:06 -0500 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8875415D38C; Thu, 17 Feb 2022 07:48:49 -0800 (PST) Received: from fraeml705-chm.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Jzzk06LM4z67yc0; Thu, 17 Feb 2022 23:47:52 +0800 (CST) Received: from lhreml724-chm.china.huawei.com (10.201.108.75) by fraeml705-chm.china.huawei.com (10.206.15.54) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.21; Thu, 17 Feb 2022 16:48:47 +0100 Received: from localhost.localdomain (10.69.192.58) by lhreml724-chm.china.huawei.com (10.201.108.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 17 Feb 2022 15:48:43 +0000 From: John Garry To: , , , , , , CC: , , , , , , , , John Garry Subject: [PATCH v2 06/18] scsi: libsas: Move SMP task handlers to core Date: Thu, 17 Feb 2022 23:42:34 +0800 Message-ID: <1645112566-115804-7-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1645112566-115804-1-git-send-email-john.garry@huawei.com> References: <1645112566-115804-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Move the SMP task handlers to the core host code as they will be re-used for executing internal abort and TMF tasks. Signed-off-by: John Garry Reviewed-by: Christoph Hellwig Tested-by: Yihang Li --- drivers/scsi/libsas/sas_expander.c | 24 ++---------------------- drivers/scsi/libsas/sas_internal.h | 3 +++ drivers/scsi/libsas/sas_scsi_host.c | 24 ++++++++++++++++++++++++ 3 files changed, 29 insertions(+), 22 deletions(-) diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 6abce9dfc17b..260e735d06fa 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -28,26 +28,6 @@ static int sas_disable_routing(struct domain_device *dev, u8 *sas_addr); /* ---------- SMP task management ---------- */ -static void smp_task_timedout(struct timer_list *t) -{ - struct sas_task_slow *slow = from_timer(slow, t, timer); - struct sas_task *task = slow->task; - unsigned long flags; - - spin_lock_irqsave(&task->task_state_lock, flags); - if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { - task->task_state_flags |= SAS_TASK_STATE_ABORTED; - complete(&task->slow_task->completion); - } - spin_unlock_irqrestore(&task->task_state_lock, flags); -} - -static void smp_task_done(struct sas_task *task) -{ - del_timer(&task->slow_task->timer); - complete(&task->slow_task->completion); -} - /* Give it some long enough timeout. In seconds. */ #define SMP_TIMEOUT 10 @@ -78,9 +58,9 @@ static int smp_execute_task_sg(struct domain_device *dev, task->smp_task.smp_req = *req; task->smp_task.smp_resp = *resp; - task->task_done = smp_task_done; + task->task_done = sas_task_internal_done; - task->slow_task->timer.function = smp_task_timedout; + task->slow_task->timer.function = sas_task_internal_timedout; task->slow_task->timer.expires = jiffies + SMP_TIMEOUT*HZ; add_timer(&task->slow_task->timer); diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h index acd515c01861..cd6aa723c3e1 100644 --- a/drivers/scsi/libsas/sas_internal.h +++ b/drivers/scsi/libsas/sas_internal.h @@ -95,6 +95,9 @@ void sas_destruct_devices(struct asd_sas_port *port); extern const work_func_t sas_phy_event_fns[PHY_NUM_EVENTS]; extern const work_func_t sas_port_event_fns[PORT_NUM_EVENTS]; +void sas_task_internal_done(struct sas_task *task); +void sas_task_internal_timedout(struct timer_list *t); + #ifdef CONFIG_SCSI_SAS_HOST_SMP extern void sas_smp_host_handler(struct bsg_job *job, struct Scsi_Host *shost); #else diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 387083a16a79..40dcb4e8a747 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -893,6 +893,30 @@ int sas_bios_param(struct scsi_device *scsi_dev, } EXPORT_SYMBOL_GPL(sas_bios_param); +void sas_task_internal_done(struct sas_task *task) +{ + del_timer(&task->slow_task->timer); + complete(&task->slow_task->completion); +} + +void sas_task_internal_timedout(struct timer_list *t) +{ + struct sas_task_slow *slow = from_timer(slow, t, timer); + struct sas_task *task = slow->task; + bool is_completed = true; + unsigned long flags; + + spin_lock_irqsave(&task->task_state_lock, flags); + if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { + task->task_state_flags |= SAS_TASK_STATE_ABORTED; + is_completed = false; + } + spin_unlock_irqrestore(&task->task_state_lock, flags); + + if (!is_completed) + complete(&task->slow_task->completion); +} + /* * Tell an upper layer that it needs to initiate an abort for a given task. * This should only ever be called by an LLDD.