From patchwork Sat May 9 09:43:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shukun Tan X-Patchwork-Id: 11538179 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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 956941862 for ; Sat, 9 May 2020 09:45:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 882FE218AC for ; Sat, 9 May 2020 09:45:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728154AbgEIJp1 (ORCPT ); Sat, 9 May 2020 05:45:27 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:58148 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728198AbgEIJp0 (ORCPT ); Sat, 9 May 2020 05:45:26 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 50C8ABCCAA5E9A9C804F; Sat, 9 May 2020 17:45:19 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.487.0; Sat, 9 May 2020 17:45:11 +0800 From: Shukun Tan To: , CC: , , Subject: [PATCH v2 06/12] crypto: hisilicon - add FLR support Date: Sat, 9 May 2020 17:43:59 +0800 Message-ID: <1589017445-15514-7-git-send-email-tanshukun1@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1589017445-15514-1-git-send-email-tanshukun1@huawei.com> References: <1589017445-15514-1-git-send-email-tanshukun1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Add callback reset_prepare and reset_done in QM, The callback reset_prepare will uninit device error configuration and stop the QM, the callback reset_done will init the device error configuration and restart the QM. Uninit the error configuration will disable device block master OOO when Multi-bit ECC error occurs to avoid the request of FLR will not return. Signed-off-by: Shukun Tan Reviewed-by: Zhou Wang --- drivers/crypto/hisilicon/hpre/hpre_main.c | 16 ++++ drivers/crypto/hisilicon/qm.c | 133 +++++++++++++++++++++++++++++- drivers/crypto/hisilicon/qm.h | 2 + drivers/crypto/hisilicon/sec2/sec_main.c | 2 + drivers/crypto/hisilicon/zip/zip_main.c | 16 ++++ 5 files changed, 165 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index f1bb626..1948fd3 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -310,12 +310,21 @@ static void hpre_cnt_regs_clear(struct hisi_qm *qm) static void hpre_hw_error_disable(struct hisi_qm *qm) { + u32 val; + /* disable hpre hw error interrupts */ writel(HPRE_CORE_INT_DISABLE, qm->io_base + HPRE_INT_MASK); + + /* disable HPRE block master OOO when m-bit error occur */ + val = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); + val &= ~HPRE_AM_OOO_SHUTDOWN_ENABLE; + writel(val, qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); } static void hpre_hw_error_enable(struct hisi_qm *qm) { + u32 val; + /* clear HPRE hw error source if having */ writel(HPRE_CORE_INT_DISABLE, qm->io_base + HPRE_HAC_SOURCE_INT); @@ -324,6 +333,11 @@ static void hpre_hw_error_enable(struct hisi_qm *qm) writel(HPRE_HAC_RAS_CE_ENABLE, qm->io_base + HPRE_RAS_CE_ENB); writel(HPRE_HAC_RAS_NFE_ENABLE, qm->io_base + HPRE_RAS_NFE_ENB); writel(HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_RAS_FE_ENB); + + /* enable HPRE block master OOO when m-bit error occur */ + val = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); + val |= HPRE_AM_OOO_SHUTDOWN_ENABLE; + writel(val, qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); } static inline struct hisi_qm *hpre_file_to_qm(struct hpre_debugfs_file *file) @@ -851,6 +865,8 @@ static void hpre_remove(struct pci_dev *pdev) static const struct pci_error_handlers hpre_err_handler = { .error_detected = hisi_qm_dev_err_detected, .slot_reset = hisi_qm_dev_slot_reset, + .reset_prepare = hisi_qm_reset_prepare, + .reset_done = hisi_qm_reset_done, }; static struct pci_driver hpre_pci_driver = { diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index e42097e..c30df08 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -175,6 +175,7 @@ #define QMC_ALIGN(sz) ALIGN(sz, 32) #define QM_DBG_TMP_BUF_LEN 22 +#define QM_PCI_COMMAND_INVALID ~0 #define QM_MK_CQC_DW3_V1(hop_num, pg_sz, buf_sz, cqe_sz) \ (((hop_num) << QM_CQ_HOP_NUM_SHIFT) | \ @@ -2874,6 +2875,11 @@ pci_ers_result_t hisi_qm_dev_err_detected(struct pci_dev *pdev, } EXPORT_SYMBOL_GPL(hisi_qm_dev_err_detected); +static int qm_get_hw_error_status(struct hisi_qm *qm) +{ + return readl(qm->io_base + QM_ABNORMAL_INT_STATUS); +} + static int qm_check_req_recv(struct hisi_qm *qm) { struct pci_dev *pdev = qm->pdev; @@ -3166,9 +3172,7 @@ static int qm_vf_reset_done(struct hisi_qm *qm) static int qm_get_dev_err_status(struct hisi_qm *qm) { - - return(qm->err_ini->get_dev_hw_err_status(qm) & - qm->err_ini->err_info.ecc_2bits_mask); + return qm->err_ini->get_dev_hw_err_status(qm); } static int qm_dev_hw_init(struct hisi_qm *qm) @@ -3190,7 +3194,8 @@ static void qm_restart_prepare(struct hisi_qm *qm) qm->io_base + ACC_AM_CFG_PORT_WR_EN); /* clear dev ecc 2bit error source if having */ - value = qm_get_dev_err_status(qm); + value = qm_get_dev_err_status(qm) & + qm->err_ini->err_info.ecc_2bits_mask; if (value && qm->err_ini->clear_dev_hw_err_status) qm->err_ini->clear_dev_hw_err_status(qm, value); @@ -3336,6 +3341,126 @@ pci_ers_result_t hisi_qm_dev_slot_reset(struct pci_dev *pdev) } EXPORT_SYMBOL_GPL(hisi_qm_dev_slot_reset); +/* check the interrupt is ecc-mbit error or not */ +static int qm_check_dev_error(struct hisi_qm *qm) +{ + int ret; + + if (qm->fun_type == QM_HW_VF) + return 0; + + ret = qm_get_hw_error_status(qm) & QM_ECC_MBIT; + if (ret) + return ret; + + return (qm_get_dev_err_status(qm) & + qm->err_ini->err_info.ecc_2bits_mask); +} + +void hisi_qm_reset_prepare(struct pci_dev *pdev) +{ + struct hisi_qm *pf_qm = pci_get_drvdata(pci_physfn(pdev)); + struct hisi_qm *qm = pci_get_drvdata(pdev); + u32 delay = 0; + int ret; + + hisi_qm_dev_err_uninit(pf_qm); + + /* + * Check whether there is an ECC mbit error, If it occurs, need to + * wait for soft reset to fix it. + */ + while (qm_check_dev_error(pf_qm)) { + msleep(++delay); + if (delay > QM_RESET_WAIT_TIMEOUT) + return; + } + + ret = qm_reset_prepare_ready(qm); + if (ret) { + pci_err(pdev, "FLR not ready!\n"); + return; + } + + if (qm->vfs_num) { + ret = qm_vf_reset_prepare(qm); + if (ret) { + pci_err(pdev, "Failed to prepare reset, ret = %d.\n", + ret); + return; + } + } + + ret = hisi_qm_stop(qm); + if (ret) { + pci_err(pdev, "Failed to stop QM, ret = %d.\n", ret); + return; + } + + pci_info(pdev, "FLR resetting...\n"); +} +EXPORT_SYMBOL_GPL(hisi_qm_reset_prepare); + +static bool qm_flr_reset_complete(struct pci_dev *pdev) +{ + struct pci_dev *pf_pdev = pci_physfn(pdev); + struct hisi_qm *qm = pci_get_drvdata(pf_pdev); + u32 id; + + pci_read_config_dword(qm->pdev, PCI_COMMAND, &id); + if (id == QM_PCI_COMMAND_INVALID) { + pci_err(pdev, "Device can not be used!\n"); + return false; + } + + clear_bit(QM_DEV_RESET_FLAG, &qm->reset_flag); + + return true; +} + +void hisi_qm_reset_done(struct pci_dev *pdev) +{ + struct hisi_qm *pf_qm = pci_get_drvdata(pci_physfn(pdev)); + struct hisi_qm *qm = pci_get_drvdata(pdev); + int ret; + + hisi_qm_dev_err_init(pf_qm); + + ret = qm_restart(qm); + if (ret) { + pci_err(pdev, "Failed to start QM, ret = %d.\n", ret); + goto flr_done; + } + + if (qm->fun_type == QM_HW_PF) { + ret = qm_dev_hw_init(qm); + if (ret) { + pci_err(pdev, "Failed to init PF, ret = %d.\n", ret); + goto flr_done; + } + + if (!qm->vfs_num) + goto flr_done; + + ret = qm_vf_q_assign(qm, qm->vfs_num); + if (ret) { + pci_err(pdev, "Failed to assign VFs, ret = %d.\n", ret); + goto flr_done; + } + + ret = qm_vf_reset_done(qm); + if (ret) { + pci_err(pdev, "Failed to start VFs, ret = %d.\n", ret); + goto flr_done; + } + } + +flr_done: + if (qm_flr_reset_complete(pdev)) + pci_info(pdev, "FLR reset complete\n"); +} +EXPORT_SYMBOL_GPL(hisi_qm_reset_done); + MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Zhou Wang "); MODULE_DESCRIPTION("HiSilicon Accelerator queue manager driver"); diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h index eff156a..25934e3 100644 --- a/drivers/crypto/hisilicon/qm.h +++ b/drivers/crypto/hisilicon/qm.h @@ -371,6 +371,8 @@ void hisi_qm_dev_err_uninit(struct hisi_qm *qm); pci_ers_result_t hisi_qm_dev_err_detected(struct pci_dev *pdev, pci_channel_state_t state); pci_ers_result_t hisi_qm_dev_slot_reset(struct pci_dev *pdev); +void hisi_qm_reset_prepare(struct pci_dev *pdev); +void hisi_qm_reset_done(struct pci_dev *pdev); struct hisi_acc_sgl_pool; struct hisi_acc_hw_sgl *hisi_acc_sg_buf_map_to_hw_sgl(struct device *dev, diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c index 5aba775..437e8788 100644 --- a/drivers/crypto/hisilicon/sec2/sec_main.c +++ b/drivers/crypto/hisilicon/sec2/sec_main.c @@ -914,6 +914,8 @@ static void sec_remove(struct pci_dev *pdev) static const struct pci_error_handlers sec_err_handler = { .error_detected = hisi_qm_dev_err_detected, .slot_reset = hisi_qm_dev_slot_reset, + .reset_prepare = hisi_qm_reset_prepare, + .reset_done = hisi_qm_reset_done, }; static struct pci_driver sec_pci_driver = { diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index 3c838e2..a7f0c6a 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -278,6 +278,8 @@ static int hisi_zip_set_user_domain_and_cache(struct hisi_qm *qm) static void hisi_zip_hw_error_enable(struct hisi_qm *qm) { + u32 val; + if (qm->ver == QM_HW_V1) { writel(HZIP_CORE_INT_MASK_ALL, qm->io_base + HZIP_CORE_INT_MASK_REG); @@ -296,12 +298,24 @@ static void hisi_zip_hw_error_enable(struct hisi_qm *qm) /* enable ZIP hw error interrupts */ writel(0, qm->io_base + HZIP_CORE_INT_MASK_REG); + + /* enable ZIP block master OOO when m-bit error occur */ + val = readl(qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); + val = val | HZIP_AXI_SHUTDOWN_ENABLE; + writel(val, qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); } static void hisi_zip_hw_error_disable(struct hisi_qm *qm) { + u32 val; + /* disable ZIP hw error interrupts */ writel(HZIP_CORE_INT_MASK_ALL, qm->io_base + HZIP_CORE_INT_MASK_REG); + + /* disable ZIP block master OOO when m-bit error occur */ + val = readl(qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); + val = val & ~HZIP_AXI_SHUTDOWN_ENABLE; + writel(val, qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); } static inline struct hisi_qm *file_to_qm(struct ctrl_debug_file *file) @@ -802,6 +816,8 @@ static void hisi_zip_remove(struct pci_dev *pdev) static const struct pci_error_handlers hisi_zip_err_handler = { .error_detected = hisi_qm_dev_err_detected, .slot_reset = hisi_qm_dev_slot_reset, + .reset_prepare = hisi_qm_reset_prepare, + .reset_done = hisi_qm_reset_done, }; static struct pci_driver hisi_zip_pci_driver = {