From patchwork Thu Jun 9 10:29:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 12875200 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 E72F4CCA47F for ; Thu, 9 Jun 2022 10:37:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243260AbiFIKh3 (ORCPT ); Thu, 9 Jun 2022 06:37:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243105AbiFIKg6 (ORCPT ); Thu, 9 Jun 2022 06:36:58 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1111215E6A; Thu, 9 Jun 2022 03:36:34 -0700 (PDT) Received: from fraeml709-chm.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4LJgPX5R5Bz689NW; Thu, 9 Jun 2022 18:31:44 +0800 (CST) Received: from lhreml724-chm.china.huawei.com (10.201.108.75) by fraeml709-chm.china.huawei.com (10.206.15.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 9 Jun 2022 12:36:32 +0200 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 15.1.2375.24; Thu, 9 Jun 2022 11:36:29 +0100 From: John Garry To: , , , , , , CC: , , , , , John Garry Subject: [PATCH RFC v2 11/18] scsi: libsas: Don't attempt to find scsi host rphy in slave alloc Date: Thu, 9 Jun 2022 18:29:12 +0800 Message-ID: <1654770559-101375-12-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1654770559-101375-1-git-send-email-john.garry@huawei.com> References: <1654770559-101375-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org It doesn't have one. Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas_main.c | 12 ++++++++++-- drivers/scsi/libsas/sas_scsi_host.c | 17 +++++++++++++++-- 2 files changed, 25 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 764e859d0106..0219ccac9062 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -756,14 +756,22 @@ static int hisi_sas_init_device(struct domain_device *device) int hisi_sas_slave_alloc(struct scsi_device *sdev) { - struct domain_device *ddev = sdev_to_domain_dev(sdev); - struct hisi_sas_device *sas_dev = ddev->lldd_dev; + struct scsi_target *starget = sdev->sdev_target; + struct device *parent = starget->dev.parent; + struct hisi_sas_device *sas_dev; + struct domain_device *ddev; int rc; + if (scsi_is_host_device(parent)) + return 0; + rc = sas_slave_alloc(sdev); if (rc) return rc; + ddev = sdev_to_domain_dev(sdev); + sas_dev = ddev->lldd_dev; + rc = hisi_sas_init_device(ddev); if (rc) return rc; diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 42279a6d6b06..532e734c1fb6 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -847,8 +847,15 @@ struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy) int sas_target_alloc(struct scsi_target *starget) { - struct sas_rphy *rphy = dev_to_rphy(starget->dev.parent); - struct domain_device *found_dev = sas_find_dev_by_rphy(rphy); + struct device *parent = starget->dev.parent; + struct sas_rphy *rphy; + struct domain_device *found_dev; + + if (scsi_is_host_device(parent)) + return 0; + + rphy = dev_to_rphy(parent); + found_dev = sas_find_dev_by_rphy(rphy); if (!found_dev) return -ENODEV; @@ -1252,6 +1259,12 @@ EXPORT_SYMBOL_GPL(sas_task_abort); int sas_slave_alloc(struct scsi_device *sdev) { + struct scsi_target *starget = sdev->sdev_target; + struct device *parent = starget->dev.parent; + + if (scsi_is_host_device(parent)) + return 0; + if (dev_is_sata(sdev_to_domain_dev(sdev)) && sdev->lun) return -ENXIO;