From patchwork Mon Apr 25 16:03:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shaik Sajida Bhanu X-Patchwork-Id: 565942 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 329B6C433F5 for ; Mon, 25 Apr 2022 16:04:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239038AbiDYQHD (ORCPT ); Mon, 25 Apr 2022 12:07:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237228AbiDYQHC (ORCPT ); Mon, 25 Apr 2022 12:07:02 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51ADA2AC66; Mon, 25 Apr 2022 09:03:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1650902637; x=1682438637; h=from:to:cc:subject:date:message-id; bh=hrOoewtJhmgZVFNviaA6Slr7SEW6ryGKzcMbCayfMvQ=; b=GJiaGkaM8dAn0LCedjg76oynHLGAspzQVQz4GPYf5ZClSMJKrhlsNqjd zoi+PPkA2GbhD0x50cvfIFhrmVLAromMjvpSayNIf8/vGrkLsOFwiU4Ur fAM1cghFIXPu2DPJvyf+x3svd14aGzb9/HCK5+CbWdMJuKu3vsQLUGGJx Q=; Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 25 Apr 2022 09:03:57 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 25 Apr 2022 09:03:55 -0700 X-QCInternal: smtphost Received: from c-sbhanu-linux.qualcomm.com ([10.242.50.201]) by ironmsg02-blr.qualcomm.com with ESMTP; 25 Apr 2022 21:33:53 +0530 Received: by c-sbhanu-linux.qualcomm.com (Postfix, from userid 2344807) id 58808BD1; Mon, 25 Apr 2022 21:33:52 +0530 (IST) From: Shaik Sajida Bhanu To: adrian.hunter@intel.com, ulf.hansson@linaro.org, wsa+renesas@sang-engineering.com, yoshihiro.shimoda.uh@renesas.com, linus.walleij@linaro.org, digetx@gmail.com, briannorris@chromium.org, quic_riteshh@quicinc.com Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, quic_asutoshd@quicinc.com, quic_rampraka@quicinc.com, quic_pragalla@quicinc.com, quic_sartgarg@quicinc.com, quic_nitirawa@quicinc.com, quic_sayalil@quicinc.com, Shaik Sajida Bhanu , Liangliang Lu , "Bao D . Nguyen" Subject: [PATCH V5 1/5] mmc: core: Capture eMMC and SD card errors Date: Mon, 25 Apr 2022 21:33:46 +0530 Message-Id: <1650902626-4870-1-git-send-email-quic_c_sbhanu@quicinc.com> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Add changes to capture eMMC and SD card errors. This is useful for debug and testing. Signed-off-by: Liangliang Lu Signed-off-by: Sayali Lokhande Signed-off-by: Bao D. Nguyen Signed-off-by: Ram Prakash Gupta Signed-off-by: Shaik Sajida Bhanu --- drivers/mmc/core/core.c | 6 ++++++ include/linux/mmc/host.h | 26 ++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 8cc2b74..6d086e9 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2247,6 +2247,12 @@ void mmc_rescan(struct work_struct *work) if (freqs[i] <= host->f_min) break; } + + /* + * Ignore the command timeout errors observed during + * the card init as those are excepted. + */ + host->err_stats[MMC_ERR_CMD_TIMEOUT] = 0; mmc_release_host(host); out: diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index c193c50..eb8bc5b 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -93,6 +93,25 @@ struct mmc_clk_phase_map { struct mmc_host; +enum mmc_err_stat { + MMC_ERR_CMD_TIMEOUT, + MMC_ERR_CMD_CRC, + MMC_ERR_DAT_TIMEOUT, + MMC_ERR_DAT_CRC, + MMC_ERR_AUTO_CMD, + MMC_ERR_ADMA, + MMC_ERR_TUNING, + MMC_ERR_CMDQ_RED, + MMC_ERR_CMDQ_GCE, + MMC_ERR_CMDQ_ICCE, + MMC_ERR_REQ_TIMEOUT, + MMC_ERR_CMDQ_REQ_TIMEOUT, + MMC_ERR_ICE_CFG, + MMC_ERR_CTRL_TIMEOUT, + MMC_ERR_UNEXPECTED_IRQ, + MMC_ERR_MAX, +}; + struct mmc_host_ops { /* * It is optional for the host to implement pre_req and post_req in @@ -501,6 +520,7 @@ struct mmc_host { /* Host Software Queue support */ bool hsq_enabled; + u32 err_stats[MMC_ERR_MAX]; unsigned long private[] ____cacheline_aligned; }; @@ -635,6 +655,12 @@ static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data) return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE; } +static inline void mmc_debugfs_err_stats_inc(struct mmc_host *host, + enum mmc_err_stat stat) +{ + host->err_stats[stat] += 1; +} + int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd);