From patchwork Mon Jul 8 04:37:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11034575 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5A290138B for ; Mon, 8 Jul 2019 04:38:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4980627CEA for ; Mon, 8 Jul 2019 04:38:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3DC9B2838B; Mon, 8 Jul 2019 04:38:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA9FE27CEA for ; 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Mon, 8 Jul 2019 12:37:59 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 1/3] scsi: ufs: Change names related to error history Date: Mon, 8 Jul 2019 12:37:55 +0800 Message-ID: <1562560677-3985-2-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com> References: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: D70DB57EF5D2351AF6400939A43B3A57844265E566CA439315780100DD7A15742000:8 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Remove "uic" term in below error history functions and structures for more general usages, struct ufs_uic_err_reg_hist; void ufshcd_update_uic_reg_hist(struct ufs_uic_err_reg_hist *reg_hist, u32 reg); void ufshcd_print_uic_err_hist(struct ufs_hba *hba, struct ufs_uic)err_reg_hist *err_hist, char *err_name); Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 39 ++++++++++++++++++++------------------- drivers/scsi/ufs/ufshcd.h | 20 ++++++++++---------- 2 files changed, 30 insertions(+), 29 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index a208589426b1..eb062aba0d21 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -390,14 +390,15 @@ static void ufshcd_print_clk_freqs(struct ufs_hba *hba) } } -static void ufshcd_print_uic_err_hist(struct ufs_hba *hba, - struct ufs_uic_err_reg_hist *err_hist, char *err_name) +static void ufshcd_print_err_hist(struct ufs_hba *hba, + struct ufs_err_reg_hist *err_hist, + char *err_name) { int i; bool found = false; - for (i = 0; i < UIC_ERR_REG_HIST_LENGTH; i++) { - int p = (i + err_hist->pos) % UIC_ERR_REG_HIST_LENGTH; + for (i = 0; i < UFS_ERR_REG_HIST_LENGTH; i++) { + int p = (i + err_hist->pos) % UFS_ERR_REG_HIST_LENGTH; if (err_hist->reg[p] == 0) continue; @@ -407,7 +408,7 @@ static void ufshcd_print_uic_err_hist(struct ufs_hba *hba, } if (!found) - dev_err(hba->dev, "No record of %s uic errors\n", err_name); + dev_err(hba->dev, "No record of %s errors\n", err_name); } static void ufshcd_print_host_regs(struct ufs_hba *hba) @@ -423,11 +424,11 @@ static void ufshcd_print_host_regs(struct ufs_hba *hba) ktime_to_us(hba->ufs_stats.last_hibern8_exit_tstamp), hba->ufs_stats.hibern8_exit_cnt); - ufshcd_print_uic_err_hist(hba, &hba->ufs_stats.pa_err, "pa_err"); - ufshcd_print_uic_err_hist(hba, &hba->ufs_stats.dl_err, "dl_err"); - ufshcd_print_uic_err_hist(hba, &hba->ufs_stats.nl_err, "nl_err"); - ufshcd_print_uic_err_hist(hba, &hba->ufs_stats.tl_err, "tl_err"); - ufshcd_print_uic_err_hist(hba, &hba->ufs_stats.dme_err, "dme_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.pa_err, "pa_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.dl_err, "dl_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.nl_err, "nl_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.tl_err, "tl_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.dme_err, "dme_err"); ufshcd_print_clk_freqs(hba); @@ -5346,12 +5347,12 @@ static void ufshcd_err_handler(struct work_struct *work) pm_runtime_put_sync(hba->dev); } -static void ufshcd_update_uic_reg_hist(struct ufs_uic_err_reg_hist *reg_hist, - u32 reg) +static 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) % UIC_ERR_REG_HIST_LENGTH; + reg_hist->pos = (reg_hist->pos + 1) % UFS_ERR_REG_HIST_LENGTH; } /** @@ -5372,13 +5373,13 @@ static void ufshcd_update_uic_error(struct ufs_hba *hba) * must be checked but this error is handled separately. */ dev_dbg(hba->dev, "%s: UIC Lane error reported\n", __func__); - ufshcd_update_uic_reg_hist(&hba->ufs_stats.pa_err, reg); + ufshcd_update_reg_hist(&hba->ufs_stats.pa_err, reg); } /* PA_INIT_ERROR is fatal and needs UIC reset */ reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_DATA_LINK_LAYER); if (reg) - ufshcd_update_uic_reg_hist(&hba->ufs_stats.dl_err, reg); + ufshcd_update_reg_hist(&hba->ufs_stats.dl_err, reg); if (reg & UIC_DATA_LINK_LAYER_ERROR_PA_INIT) hba->uic_error |= UFSHCD_UIC_DL_PA_INIT_ERROR; @@ -5394,19 +5395,19 @@ static void ufshcd_update_uic_error(struct ufs_hba *hba) /* UIC NL/TL/DME errors needs software retry */ reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_NETWORK_LAYER); if (reg) { - ufshcd_update_uic_reg_hist(&hba->ufs_stats.nl_err, reg); + ufshcd_update_reg_hist(&hba->ufs_stats.nl_err, reg); hba->uic_error |= UFSHCD_UIC_NL_ERROR; } reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_TRANSPORT_LAYER); if (reg) { - ufshcd_update_uic_reg_hist(&hba->ufs_stats.tl_err, reg); + ufshcd_update_reg_hist(&hba->ufs_stats.tl_err, reg); hba->uic_error |= UFSHCD_UIC_TL_ERROR; } reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_DME); if (reg) { - ufshcd_update_uic_reg_hist(&hba->ufs_stats.dme_err, reg); + ufshcd_update_reg_hist(&hba->ufs_stats.dme_err, reg); hba->uic_error |= UFSHCD_UIC_DME_ERROR; } @@ -6682,7 +6683,7 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba) static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba) { - int err_reg_hist_size = sizeof(struct ufs_uic_err_reg_hist); + int err_reg_hist_size = sizeof(struct ufs_err_reg_hist); hba->ufs_stats.hibern8_exit_cnt = 0; hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 994d73d03207..dcc61f857c38 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -412,17 +412,17 @@ struct ufs_init_prefetch { u32 icc_level; }; -#define UIC_ERR_REG_HIST_LENGTH 8 +#define UFS_ERR_REG_HIST_LENGTH 8 /** - * struct ufs_uic_err_reg_hist - keeps history of uic errors + * struct ufs_err_reg_hist - keeps history of uic errors * @pos: index to indicate cyclic buffer position * @reg: cyclic buffer for registers value * @tstamp: cyclic buffer for time stamp */ -struct ufs_uic_err_reg_hist { +struct ufs_err_reg_hist { int pos; - u32 reg[UIC_ERR_REG_HIST_LENGTH]; - ktime_t tstamp[UIC_ERR_REG_HIST_LENGTH]; + u32 reg[UFS_ERR_REG_HIST_LENGTH]; + ktime_t tstamp[UFS_ERR_REG_HIST_LENGTH]; }; /** @@ -440,11 +440,11 @@ struct ufs_uic_err_reg_hist { struct ufs_stats { u32 hibern8_exit_cnt; ktime_t last_hibern8_exit_tstamp; - struct ufs_uic_err_reg_hist pa_err; - struct ufs_uic_err_reg_hist dl_err; - struct ufs_uic_err_reg_hist nl_err; - struct ufs_uic_err_reg_hist tl_err; - struct ufs_uic_err_reg_hist dme_err; + struct ufs_err_reg_hist pa_err; + struct ufs_err_reg_hist dl_err; + struct ufs_err_reg_hist nl_err; + struct ufs_err_reg_hist tl_err; + struct ufs_err_reg_hist dme_err; }; /** From patchwork Mon Jul 8 04:37:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11034583 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D86414C0 for ; Mon, 8 Jul 2019 04:38:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4DA7D27CEA for ; Mon, 8 Jul 2019 04:38:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 412AA2838B; Mon, 8 Jul 2019 04:38:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D20CB27CEA for ; Mon, 8 Jul 2019 04:38:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727553AbfGHEih (ORCPT ); Mon, 8 Jul 2019 00:38:37 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:20654 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727341AbfGHEih (ORCPT ); Mon, 8 Jul 2019 00:38:37 -0400 X-UUID: 3a26765debfb42c39f7994d546b512e5-20190708 X-UUID: 3a26765debfb42c39f7994d546b512e5-20190708 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1076541052; Mon, 08 Jul 2019 12:38:05 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Jul 2019 12:37:59 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 8 Jul 2019 12:37:59 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 2/3] scsi: ufs: Add fatal and auto-hibern8 error history Date: Mon, 8 Jul 2019 12:37:56 +0800 Message-ID: <1562560677-3985-3-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com> References: <1562560677-3985-1-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 X-Virus-Scanned: ClamAV using ClamSMTP Provide more information of fatal errros and auto-hibern8 errors to improve debugging by extending existed UFS error history framework. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 11 ++++++++++- drivers/scsi/ufs/ufshcd.h | 6 ++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index eb062aba0d21..b8b874311509 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -429,6 +429,9 @@ static void ufshcd_print_host_regs(struct ufs_hba *hba) ufshcd_print_err_hist(hba, &hba->ufs_stats.nl_err, "nl_err"); ufshcd_print_err_hist(hba, &hba->ufs_stats.tl_err, "tl_err"); ufshcd_print_err_hist(hba, &hba->ufs_stats.dme_err, "dme_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.fatal_err, "fatal_err"); + ufshcd_print_err_hist(hba, &hba->ufs_stats.auto_hibern8_err, + "auto_hibern8_err"); ufshcd_print_clk_freqs(hba); @@ -5440,8 +5443,10 @@ static void ufshcd_check_errors(struct ufs_hba *hba) { bool queue_eh_work = false; - if (hba->errors & INT_FATAL_ERRORS) + if (hba->errors & INT_FATAL_ERRORS) { + ufshcd_update_reg_hist(&hba->ufs_stats.fatal_err, hba->errors); queue_eh_work = true; + } if (hba->errors & UIC_ERROR) { hba->uic_error = 0; @@ -5456,6 +5461,8 @@ static void ufshcd_check_errors(struct ufs_hba *hba) __func__, (hba->errors & UIC_HIBERNATE_ENTER) ? "Enter" : "Exit", hba->errors, ufshcd_get_upmcrs(hba)); + ufshcd_update_reg_hist(&hba->ufs_stats.auto_hibern8_err, + hba->errors); queue_eh_work = true; } @@ -6693,6 +6700,8 @@ static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba) memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size); memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size); memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size); + memset(&hba->ufs_stats.fatal_err, 0, err_reg_hist_size); + memset(&hba->ufs_stats.auto_hibern8_err, 0, err_reg_hist_size); hba->req_abort_count = 0; } diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index dcc61f857c38..edd9a6f9cc3b 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -440,11 +440,17 @@ struct ufs_err_reg_hist { struct ufs_stats { u32 hibern8_exit_cnt; ktime_t last_hibern8_exit_tstamp; + + /* uic specific errors */ struct ufs_err_reg_hist pa_err; struct ufs_err_reg_hist dl_err; struct ufs_err_reg_hist nl_err; struct ufs_err_reg_hist tl_err; struct ufs_err_reg_hist dme_err; + + /* fatal errors */ + struct ufs_err_reg_hist fatal_err; + struct ufs_err_reg_hist auto_hibern8_err; }; /** From patchwork Mon Jul 8 04:37:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11034571 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2FF3D14C0 for ; Mon, 8 Jul 2019 04:38:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 10EE32838B for ; Mon, 8 Jul 2019 04:38:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F2E2E28385; Mon, 8 Jul 2019 04:38:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 69D8928385 for ; Mon, 8 Jul 2019 04:38:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727518AbfGHEiQ (ORCPT ); Mon, 8 Jul 2019 00:38:16 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:47439 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727434AbfGHEiP (ORCPT ); Mon, 8 Jul 2019 00:38:15 -0400 X-UUID: 0439ed65322c48718f153102bd87e18b-20190708 X-UUID: 0439ed65322c48718f153102bd87e18b-20190708 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 347739192; Mon, 08 Jul 2019 12:38:03 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 8 Jul 2019 12:37:59 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 8 Jul 2019 12:37:59 +0800 From: Stanley Chu To: , , , , CC: , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 3/3] scsi: ufs: Do not reset error history during host reset Date: Mon, 8 Jul 2019 12:37:57 +0800 Message-ID: <1562560677-3985-4-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com> References: <1562560677-3985-1-git-send-email-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: E6439C50B647F94D2A57FB5A31BC59C04D1BA7504CA56B85EAEF93D6A1032FFF2000:8 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently UFS error history will be reset and lost during host reset flow by ufschd_probe_hba(). We shall not reset it and then error history can be kept as completed as possible to improve debugging. In addition, fix a minor display error in ufshcd_print_err_hist(). Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index b8b874311509..a46c3d2b2ea3 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -402,7 +402,7 @@ static void ufshcd_print_err_hist(struct ufs_hba *hba, if (err_hist->reg[p] == 0) continue; - dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, i, + dev_err(hba->dev, "%s[%d] = 0x%x at %lld us\n", err_name, p, err_hist->reg[p], ktime_to_us(err_hist->tstamp[p])); found = true; } @@ -6690,19 +6690,8 @@ static void ufshcd_tune_unipro_params(struct ufs_hba *hba) static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba) { - int err_reg_hist_size = sizeof(struct ufs_err_reg_hist); - hba->ufs_stats.hibern8_exit_cnt = 0; hba->ufs_stats.last_hibern8_exit_tstamp = ktime_set(0, 0); - - memset(&hba->ufs_stats.pa_err, 0, err_reg_hist_size); - memset(&hba->ufs_stats.dl_err, 0, err_reg_hist_size); - memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size); - memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size); - memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size); - memset(&hba->ufs_stats.fatal_err, 0, err_reg_hist_size); - memset(&hba->ufs_stats.auto_hibern8_err, 0, err_reg_hist_size); - hba->req_abort_count = 0; }