From mboxrd@z Thu Jan 1 00:00:00 1970 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 E8A96C433F5 for ; Thu, 14 Apr 2022 22:01:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245596AbiDNWES (ORCPT ); Thu, 14 Apr 2022 18:04:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48508 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244930AbiDNWEG (ORCPT ); Thu, 14 Apr 2022 18:04:06 -0400 Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32201A1472; Thu, 14 Apr 2022 15:01:39 -0700 (PDT) Received: by mail-ed1-x535.google.com with SMTP id b24so7977812edu.10; Thu, 14 Apr 2022 15:01:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=IGPv67XD0S+UexNg1MndYpUIv/Udyr5RFRP/aJXCovE=; b=bI24UjLJzZzCmYaLHi0up6ApwHcMZAGRaQFWBw9xT+k8lezWFqpX3uBZyFl5yLfx1r j7fyxsvC07UZKJzfsknVLaC2ku2U4nEl+oc0uLCj9bKieaoVSWI7dtju3CUMSHzfX4x+ UQaTf1gskvgo/VCOIn7aa2MLG7QP4RygVcGHsm0sMwXyynLU4mjvdQGHdyzs/RhrvYLM swjsEgGfezFCFgG/cFabKA9MgLIFEngZcJcn1p/DTiQqNglCmCYEunfMzfJ0JY2B733Z TTVf1hqc5GS1GnghJ/DL+UZcBjdx+zSKCRoPe0FE4IMLB64DcEG+s96oDdkSGnOF4vJG kpag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=IGPv67XD0S+UexNg1MndYpUIv/Udyr5RFRP/aJXCovE=; b=u6mKZyxzheXQ6cuhvkjAxHgigYwEQtJPETHxC3n1xzJCxWWkvDYK+6XJcC2hjG207V DZDsnuAfClOB+E0cbZRZBC/WmtA6zFdOcr5xZm57e9aKtdOK8ZI6Uwywp84GDQ4HeehB gR8rCJiUJ8xxPpY/I3TU/NCsGxXl2B+SXW5pXXY2z307/HLMbHGoWq+1iaIJEv5b9wJj 88TSw0OH3kbOuyje3m0d1mADtve3ajLLjD0LNBlCESlp146+fW7eqi2R/MnHkpBRZezF VzwgmjC5NQm99QOP6s206lsZfINXJikWnRO+MWe2NPQAuS9HKuk6CNvFdYs0/eextx1H s7Wg== X-Gm-Message-State: AOAM5321Zrn8AhTXg5kmlo/zdhGdAeD7DnwtubV2v+0PgC1wB+Gc16zs KgOmQ3KFp0aud4Bzxeei6L8= X-Google-Smtp-Source: ABdhPJyBo0dLY5PT89TrcCm/E+WmO1KFRDiGtRg1Uo31auDxnDTIel51F6IDjajU0S5kuhrK9mxUHw== X-Received: by 2002:a05:6402:34d4:b0:421:16c7:f474 with SMTP id w20-20020a05640234d400b0042116c7f474mr4680908edc.356.1649973697755; Thu, 14 Apr 2022 15:01:37 -0700 (PDT) Received: from linux.. (p5dd1ed70.dip0.t-ipconnect.de. [93.209.237.112]) by smtp.gmail.com with ESMTPSA id e15-20020a170906044f00b006e897e110fcsm1060948eja.48.2022.04.14.15.01.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Apr 2022 15:01:37 -0700 (PDT) From: Bean Huo To: alim.akhtar@samsung.com, avri.altman@wdc.com, asutoshd@codeaurora.org, jejb@linux.ibm.com, martin.petersen@oracle.com, stanley.chu@mediatek.com, beanhuo@micron.com, bvanassche@acm.org, tomas.winkler@intel.com, daejun7.park@samsung.com, powen.kao@mediatek.com Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 1/4] scsi: ufshpb: Merge ufshpb_reset() and ufshpb_reset_host() Date: Fri, 15 Apr 2022 00:01:24 +0200 Message-Id: <20220414220127.587917-2-huobean@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220414220127.587917-1-huobean@gmail.com> References: <20220414220127.587917-1-huobean@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bean Huo There is no functional change in this patch, just merge ufshpb_reset() and ufshpb_reset_host() into one function ufshpb_toggle(). Signed-off-by: Bean Huo --- drivers/scsi/ufs/ufshcd.c | 4 ++-- drivers/scsi/ufs/ufshpb.c | 36 +++++++++++++----------------------- drivers/scsi/ufs/ufshpb.h | 6 ++---- 3 files changed, 17 insertions(+), 29 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 0899d5b8cdad..de0bc53e3ac6 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -7223,7 +7223,7 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba) * Stop the host controller and complete the requests * cleared by h/w */ - ufshpb_reset_host(hba); + ufshpb_toggle(hba, HPB_PRESENT, HPB_RESET); ufshcd_hba_stop(hba); hba->silence_err_logs = true; ufshcd_complete_requests(hba); @@ -8184,7 +8184,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params) /* Enable Auto-Hibernate if configured */ ufshcd_auto_hibern8_enable(hba); - ufshpb_reset(hba); + ufshpb_toggle(hba, HPB_RESET, HPB_PRESENT); out: spin_lock_irqsave(hba->host->host_lock, flags); if (ret) diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c index 3ca745ad616c..4463a0fc619f 100644 --- a/drivers/scsi/ufs/ufshpb.c +++ b/drivers/scsi/ufs/ufshpb.c @@ -2278,38 +2278,28 @@ static bool ufshpb_check_hpb_reset_query(struct ufs_hba *hba) return flag_res; } -void ufshpb_reset(struct ufs_hba *hba) +/** + * ufshpb_toggle - switch HPB state of all LUs + * @hba: per-adapter instance + * @src: expected current HPB state + * @dest: expected target HPB state + */ +void ufshpb_toggle(struct ufs_hba *hba, enum UFSHPB_STATE src, enum UFSHPB_STATE dest) { struct ufshpb_lu *hpb; struct scsi_device *sdev; shost_for_each_device(sdev, hba->host) { hpb = ufshpb_get_hpb_data(sdev); - if (!hpb) - continue; - - if (ufshpb_get_state(hpb) != HPB_RESET) - continue; - - ufshpb_set_state(hpb, HPB_PRESENT); - } -} - -void ufshpb_reset_host(struct ufs_hba *hba) -{ - struct ufshpb_lu *hpb; - struct scsi_device *sdev; - shost_for_each_device(sdev, hba->host) { - hpb = ufshpb_get_hpb_data(sdev); - if (!hpb) + if (!hpb || ufshpb_get_state(hpb) != src) continue; + ufshpb_set_state(hpb, dest); - if (ufshpb_get_state(hpb) != HPB_PRESENT) - continue; - ufshpb_set_state(hpb, HPB_RESET); - ufshpb_cancel_jobs(hpb); - ufshpb_discard_rsp_lists(hpb); + if (dest == HPB_RESET) { + ufshpb_cancel_jobs(hpb); + ufshpb_discard_rsp_lists(hpb); + } } } diff --git a/drivers/scsi/ufs/ufshpb.h b/drivers/scsi/ufs/ufshpb.h index b475dbd78988..2825ec69a6a6 100644 --- a/drivers/scsi/ufs/ufshpb.h +++ b/drivers/scsi/ufs/ufshpb.h @@ -288,8 +288,7 @@ static int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) { return 0; static void ufshpb_rsp_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) {} static void ufshpb_resume(struct ufs_hba *hba) {} static void ufshpb_suspend(struct ufs_hba *hba) {} -static void ufshpb_reset(struct ufs_hba *hba) {} -static void ufshpb_reset_host(struct ufs_hba *hba) {} +static void ufshpb_toggle(struct ufs_hba *hba, enum UFSHPB_STATE src, enum UFSHPB_STATE dest) {} static void ufshpb_init(struct ufs_hba *hba) {} static void ufshpb_init_hpb_lu(struct ufs_hba *hba, struct scsi_device *sdev) {} static void ufshpb_destroy_lu(struct ufs_hba *hba, struct scsi_device *sdev) {} @@ -303,8 +302,7 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp); void ufshpb_rsp_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp); void ufshpb_resume(struct ufs_hba *hba); void ufshpb_suspend(struct ufs_hba *hba); -void ufshpb_reset(struct ufs_hba *hba); -void ufshpb_reset_host(struct ufs_hba *hba); +void ufshpb_toggle(struct ufs_hba *hba, enum UFSHPB_STATE src, enum UFSHPB_STATE dest); void ufshpb_init(struct ufs_hba *hba); void ufshpb_init_hpb_lu(struct ufs_hba *hba, struct scsi_device *sdev); void ufshpb_destroy_lu(struct ufs_hba *hba, struct scsi_device *sdev); -- 2.34.1