From patchwork Sat Jan 4 14:26:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11317711 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 23CD717F0 for ; Sat, 4 Jan 2020 14:26:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 03D692465B for ; Sat, 4 Jan 2020 14:26:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="Z1lhBqcg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726005AbgADO0Q (ORCPT ); Sat, 4 Jan 2020 09:26:16 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:56511 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725943AbgADO0Q (ORCPT ); Sat, 4 Jan 2020 09:26:16 -0500 X-UUID: dacf1503b5e746aa9c0433ffe543e4a1-20200104 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=Lcy3+KlfMb7jLpiBkhLUoc+fZ0Xd/X066UNWWwKFUng=; b=Z1lhBqcgEO/h+MWEeifc2Pkj+Ix4L8mD/gm333vaE/5EVABiB9qqN3HJQEE7vbZS8y+jpApuEOTdudiLUPpKwJDnD9Tlm8j8i37VNGNpyjzYH56A3TUY2xsrurpJa5DYr1GFmb/6I0kbWRpKbaG4xU+6J6zss7LgnJI4mfvqntY=; X-UUID: dacf1503b5e746aa9c0433ffe543e4a1-20200104 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1918082156; Sat, 04 Jan 2020 22:26:11 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 4 Jan 2020 22:25:38 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sat, 4 Jan 2020 22:26:40 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 2/3] scsi: ufs: add device reset history for vendor implementations Date: Sat, 4 Jan 2020 22:26:07 +0800 Message-ID: <1578147968-30938-3-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1578147968-30938-1-git-send-email-stanley.chu@mediatek.com> References: <1578147968-30938-1-git-send-email-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Device reset history shall be also added for vendor's device reset variant operation implementation. Cc: Alim Akhtar Cc: Asutosh Das Cc: Avri Altman Cc: Bart Van Assche Cc: Bean Huo Cc: Can Guo Cc: Matthias Brugger Signed-off-by: Stanley Chu Reviewed-by: Bean Huo Reviewed-by: Asutosh Das --- drivers/scsi/ufs/ufshcd.c | 5 +++-- drivers/scsi/ufs/ufshcd.h | 6 +++++- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index bae43da00bb6..29e3d50aabfb 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4346,13 +4346,14 @@ static inline int ufshcd_disable_device_tx_lcc(struct ufs_hba *hba) return ufshcd_disable_tx_lcc(hba, true); } -static void ufshcd_update_reg_hist(struct ufs_err_reg_hist *reg_hist, - u32 reg) +void ufshcd_update_reg_hist(struct ufs_err_reg_hist *reg_hist, + u32 reg) { reg_hist->reg[reg_hist->pos] = reg; reg_hist->tstamp[reg_hist->pos] = ktime_get(); reg_hist->pos = (reg_hist->pos + 1) % UFS_ERR_REG_HIST_LENGTH; } +EXPORT_SYMBOL_GPL(ufshcd_update_reg_hist); /** * ufshcd_link_startup - Initialize unipro link startup diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index e05cafddc87b..de1be6a862b0 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -805,6 +805,8 @@ int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask, u32 val, unsigned long interval_us, unsigned long timeout_ms, bool can_sleep); void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk); +void ufshcd_update_reg_hist(struct ufs_err_reg_hist *reg_hist, + u32 reg); static inline void check_upiu_size(void) { @@ -1083,8 +1085,10 @@ static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba) static inline void ufshcd_vops_device_reset(struct ufs_hba *hba) { - if (hba->vops && hba->vops->device_reset) + if (hba->vops && hba->vops->device_reset) { hba->vops->device_reset(hba); + ufshcd_update_reg_hist(&hba->ufs_stats.dev_reset, 0); + } } extern struct ufs_pm_lvl_states ufs_pm_lvl_states[];