From patchwork Fri May 8 17:15:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11537227 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8D9FC1668 for ; Fri, 8 May 2020 17:15:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7583521775 for ; Fri, 8 May 2020 17:15:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="Y1qhyoVE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728111AbgEHRPX (ORCPT ); Fri, 8 May 2020 13:15:23 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:60272 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726767AbgEHRPV (ORCPT ); Fri, 8 May 2020 13:15:21 -0400 X-UUID: 397b0eb00bb74c089db15ed5db229c38-20200509 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=0ORkRYecHIDtUF3MhVdta5cgJ+2Y5vlSsyDAf2BQW40=; b=Y1qhyoVEz/VSfnYZJQwI1EyMLo9iGjCYtCa7Oo4eaZk886ImFUMnH6kJolCf5vQknmc5GeSelLTaZrc3PtsOT7OUFMxqcYes9T2N386vehKZ0KQnY2UXnfZh5aJPrC0/cWlECIQPDk9+IJMg0l5ii4mPCl0+K11OcbklR0l4ecY=; X-UUID: 397b0eb00bb74c089db15ed5db229c38-20200509 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1700407730; Sat, 09 May 2020 01:15:18 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 9 May 2020 01:15:10 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 9 May 2020 01:15:12 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 3/5] scsi: ufs: customize flush threshold for WriteBooster Date: Sat, 9 May 2020 01:15:11 +0800 Message-ID: <20200508171513.14665-4-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200508171513.14665-1-stanley.chu@mediatek.com> References: <20200508171513.14665-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: D97692ED15460159C4AFB5BA8F463C69AA861F79961DE9ADFD1E9F8C1A6BF2862000:8 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Allow flush threshold for WriteBooster to be customizable by vendors. To achieve this, make the value as a variable in struct ufs_hba first. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 6 ++++-- drivers/scsi/ufs/ufshcd.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index cdacbe6378a1..9a0ce6550c2f 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5301,8 +5301,8 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba, cur_buf); return false; } - /* Let it continue to flush when >60% full */ - if (avail_buf < UFS_WB_40_PERCENT_BUF_REMAIN) + /* Let it continue to flush when available buffer exceeds threshold */ + if (avail_buf < hba->vps->wb_flush_threshold) return true; return false; @@ -6839,6 +6839,7 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf) if (!d_lu_wb_buf_alloc) goto wb_disabled; } + return; wb_disabled: @@ -7462,6 +7463,7 @@ static const struct attribute_group *ufshcd_driver_groups[] = { static struct ufs_hba_variant_params ufs_hba_vps = { .hba_enable_delay_us = 1000, + .wb_flush_threshold = UFS_WB_40_PERCENT_BUF_REMAIN, .devfreq_profile.polling_ms = 100, .devfreq_profile.target = ufshcd_devfreq_target, .devfreq_profile.get_dev_status = ufshcd_devfreq_get_dev_status, diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index f7bdf52ba8b0..e3dfb48e669e 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -570,6 +570,7 @@ struct ufs_hba_variant_params { struct devfreq_dev_profile devfreq_profile; struct devfreq_simple_ondemand_data ondemand_data; u16 hba_enable_delay_us; + u32 wb_flush_threshold; }; /**