From patchwork Mon Jun 15 14:48:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 213755 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, MIME_BASE64_TEXT, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4331C433E0 for ; Mon, 15 Jun 2020 14:48:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AD918207DA for ; Mon, 15 Jun 2020 14:48:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="nxflQnvc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730719AbgFOOsL (ORCPT ); Mon, 15 Jun 2020 10:48:11 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:40923 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1730353AbgFOOsL (ORCPT ); Mon, 15 Jun 2020 10:48:11 -0400 X-UUID: cfc08263fbaa4c539610d9c6f2bdec35-20200615 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=K9jHs+9H91saKQrMUULPDpgsjmfGksPsDZmJk9xUKNo=; b=nxflQnvciSd75PZ6THLHoH0qJQQZ8wiNp3cMhoq6qDfMmb1yyVZMavRUA0RGPH3KnF8L+NSMoAYpJMxU8cXtxkzni6dF4bgc3ShZDFh8zQlmrzjwP62A86YZ3P8JL4Tse4dXRM5o9LO0djgYFVUC3UvD46WHi5B5j51Jn1xlp94=; X-UUID: cfc08263fbaa4c539610d9c6f2bdec35-20200615 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 223377459; Mon, 15 Jun 2020 22:48:07 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 15 Jun 2020 22:48:03 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 15 Jun 2020 22:48:03 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v2 1/3] scsi: ufs: Remove redundant label "out" in ufshcd_make_hba_operational() Date: Mon, 15 Jun 2020 22:48:03 +0800 Message-ID: <20200615144805.6921-2-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200615144805.6921-1-stanley.chu@mediatek.com> References: <20200615144805.6921-1-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 Label "out" is redundant in ufshcd_make_hba_operational() and can be removed. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 2 -- 1 file changed, 2 deletions(-) -- 2.18.0 diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 1e1316ba7082..152ae7f5ae86 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4258,10 +4258,8 @@ int ufshcd_make_hba_operational(struct ufs_hba *hba) dev_err(hba->dev, "Host controller not ready to process requests"); err = -EIO; - goto out; } -out: return err; } EXPORT_SYMBOL_GPL(ufshcd_make_hba_operational); From patchwork Mon Jun 15 14:48:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 213756 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, MIME_BASE64_TEXT, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0BC1EC433E0 for ; Mon, 15 Jun 2020 14:48:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF9312078E for ; Mon, 15 Jun 2020 14:48:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="kzf1P9Zu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730665AbgFOOsP (ORCPT ); Mon, 15 Jun 2020 10:48:15 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:54973 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1730598AbgFOOsM (ORCPT ); Mon, 15 Jun 2020 10:48:12 -0400 X-UUID: 3fd17b8370f4405086f136b249f1611d-20200615 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=omTxP510z3SeJM3158srmfQljfQpeJ6GXR7o8i88WeQ=; b=kzf1P9ZuIYgprokM8jWU8qEWiL8zEx1ROosCU3gLlj3E2Hd/eSqgWu6bDAeJBMswRSo0PapkmPYlYkq6d5Luf5IqajA2IOXpY00CCXGQm7D0j8JAPpp0IKXOAT2A6NuhtzsjlmKT49cFBh31e5UdqUKo0rZsNHy4+UoY397IoJU=; X-UUID: 3fd17b8370f4405086f136b249f1611d-20200615 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 359722045; Mon, 15 Jun 2020 22:48:07 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 15 Jun 2020 22:48:04 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 15 Jun 2020 22:48:03 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , , , Stanley Chu Subject: [PATCH v2 2/3] scsi: ufs: Manage and export UFS debugging information dump Date: Mon, 15 Jun 2020 22:48:04 +0800 Message-ID: <20200615144805.6921-3-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200615144805.6921-1-stanley.chu@mediatek.com> References: <20200615144805.6921-1-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 UFS has many functions to print different types of debugging information. Some information is helpful for vendor drivers and can be dumped if something wrong in vendor-specific flows. To have minimum and most simple exported interface for vendor drivers, create a single and unified entrance to most debugging functions, and then export the entry function. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 49 +++++++++++++++++++++++---------------- drivers/scsi/ufs/ufshcd.h | 8 +++++++ 2 files changed, 37 insertions(+), 20 deletions(-) -- 2.18.0 diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 152ae7f5ae86..5158c496cf95 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -573,6 +573,19 @@ static void ufshcd_print_pwr_info(struct ufs_hba *hba) hba->pwr_info.hs_rate); } +void ufshcd_print_info(struct ufs_hba *hba, enum ufs_info_item flags) +{ + if (flags & UFS_INFO_HOST_STATE) + ufshcd_print_host_state(hba); + if (flags & UFS_INFO_HOST_REGS) + ufshcd_print_host_regs(hba); + if (flags & UFS_INFO_PWR) + ufshcd_print_pwr_info(hba); + if (flags & UFS_INFO_TMRS) + ufshcd_print_tmrs(hba, hba->outstanding_tasks); +} +EXPORT_SYMBOL_GPL(ufshcd_print_info); + void ufshcd_delay_us(unsigned long us, unsigned long tolerance) { if (!us) @@ -3783,11 +3796,9 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd) ret = (status != PWR_OK) ? status : -1; } out: - if (ret) { - ufshcd_print_host_state(hba); - ufshcd_print_pwr_info(hba); - ufshcd_print_host_regs(hba); - } + if (ret) + ufshcd_print_info(hba, UFS_INFO_HOST_STATE | + UFS_INFO_HOST_REGS | UFS_INFO_PWR); spin_lock_irqsave(hba->host->host_lock, flags); hba->active_uic_cmd = NULL; @@ -4454,7 +4465,7 @@ static int ufshcd_link_startup(struct ufs_hba *hba) /* Mark that link is up in PWM-G1, 1-lane, SLOW-AUTO mode */ ufshcd_init_pwr_info(hba); - ufshcd_print_pwr_info(hba); + ufshcd_print_info(hba, UFS_INFO_PWR); if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) { ret = ufshcd_disable_device_tx_lcc(hba); @@ -4471,9 +4482,8 @@ static int ufshcd_link_startup(struct ufs_hba *hba) out: if (ret) { dev_err(hba->dev, "link startup failed %d\n", ret); - ufshcd_print_host_state(hba); - ufshcd_print_pwr_info(hba); - ufshcd_print_host_regs(hba); + ufshcd_print_info(hba, UFS_INFO_HOST_STATE | + UFS_INFO_HOST_REGS | UFS_INFO_PWR); } return ret; } @@ -4817,8 +4827,8 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) dev_err(hba->dev, "OCS error from controller = %x for tag %d\n", ocs, lrbp->task_tag); - ufshcd_print_host_regs(hba); - ufshcd_print_host_state(hba); + ufshcd_print_info(hba, UFS_INFO_HOST_STATE | + UFS_INFO_HOST_REGS); break; } /* end of switch */ @@ -5801,9 +5811,9 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba) __func__, hba->saved_err, hba->saved_uic_err); - ufshcd_print_host_regs(hba); - ufshcd_print_pwr_info(hba); - ufshcd_print_tmrs(hba, hba->outstanding_tasks); + ufshcd_print_info(hba, UFS_INFO_HOST_REGS | + UFS_INFO_PWR | + UFS_INFO_TMRS); ufshcd_print_trs(hba, hba->outstanding_reqs, pr_prdt); } @@ -6416,9 +6426,8 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) scsi_print_command(hba->lrb[tag].cmd); if (!hba->req_abort_count) { ufshcd_update_reg_hist(&hba->ufs_stats.task_abort, 0); - ufshcd_print_host_regs(hba); - ufshcd_print_host_state(hba); - ufshcd_print_pwr_info(hba); + ufshcd_print_info(hba, UFS_INFO_HOST_STATE | + UFS_INFO_HOST_REGS | UFS_INFO_PWR); ufshcd_print_trs(hba, 1 << tag, true); } else { ufshcd_print_trs(hba, 1 << tag, false); @@ -7444,7 +7453,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async) __func__, ret); goto out; } - ufshcd_print_pwr_info(hba); + ufshcd_print_info(hba, UFS_INFO_PWR); } /* @@ -8897,8 +8906,8 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) err = ufshcd_hba_enable(hba); if (err) { dev_err(hba->dev, "Host controller enable failed\n"); - ufshcd_print_host_regs(hba); - ufshcd_print_host_state(hba); + ufshcd_print_info(hba, UFS_INFO_HOST_STATE | + UFS_INFO_HOST_REGS); goto free_tmf_queue; } diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 7fa35c78342b..3450d9589602 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -817,6 +817,13 @@ static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg) ufshcd_writel(hba, tmp, reg); } +enum ufs_info_item { + UFS_INFO_HOST_STATE = (1 << 0), + UFS_INFO_HOST_REGS = (1 << 1), + UFS_INFO_PWR = (1 << 2), + UFS_INFO_TMRS = (1 << 3) +}; + int ufshcd_alloc_host(struct device *, struct ufs_hba **); void ufshcd_dealloc_host(struct ufs_hba *); int ufshcd_hba_enable(struct ufs_hba *hba); @@ -826,6 +833,7 @@ int ufshcd_make_hba_operational(struct ufs_hba *hba); void ufshcd_remove(struct ufs_hba *); int ufshcd_uic_hibern8_exit(struct ufs_hba *hba); void ufshcd_delay_us(unsigned long us, unsigned long tolerance); +void ufshcd_print_info(struct ufs_hba *hba, enum ufs_info_item flags); int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask, u32 val, unsigned long interval_us, unsigned long timeout_ms);