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[23.128.96.18]) by mx.google.com with ESMTP id se23si834566ejb.247.2020.05.15.02.16.25; Fri, 15 May 2020 02:16:50 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727861AbgEOJPX (ORCPT + 99 others); Fri, 15 May 2020 05:15:23 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:58104 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727882AbgEOJPX (ORCPT ); Fri, 15 May 2020 05:15:23 -0400 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id B877FC5E5C58780133AB; Fri, 15 May 2020 17:15:18 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.487.0; Fri, 15 May 2020 17:15:09 +0800 From: Shukun Tan To: , CC: , , Subject: [PATCH 6/7] crypto: hisilicon/qm - add DebugFS for xQC and xQE dump Date: Fri, 15 May 2020 17:13:59 +0800 Message-ID: <1589534040-50725-7-git-send-email-tanshukun1@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1589534040-50725-1-git-send-email-tanshukun1@huawei.com> References: <1589534040-50725-1-git-send-email-tanshukun1@huawei.com> MIME-Version: 1.0 Content-Type: text/plain 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 dump information of SQC/CQC/EQC/AEQC/SQE/CQE/EQE/AEQE. Signed-off-by: Shukun Tan Reviewed-by: Zhou Wang --- drivers/crypto/hisilicon/hpre/hpre_main.c | 4 + drivers/crypto/hisilicon/qm.c | 511 +++++++++++++++++++++++++++--- drivers/crypto/hisilicon/qm.h | 2 + drivers/crypto/hisilicon/sec2/sec_main.c | 6 + drivers/crypto/hisilicon/zip/zip_main.c | 4 + 5 files changed, 488 insertions(+), 39 deletions(-) diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index fb3988f..38405b5 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -84,6 +84,8 @@ #define HPRE_OOO_ECC_2BIT_ERR BIT(5) #define HPRE_VIA_MSI_DSM 1 +#define HPRE_SQE_MASK_OFFSET 8 +#define HPRE_SQE_MASK_LEN 24 static struct hisi_qm_list hpre_devices; static const char hpre_name[] = "hisi_hpre"; @@ -683,6 +685,8 @@ static int hpre_debugfs_init(struct hpre *hpre) dir = debugfs_create_dir(dev_name(dev), hpre_debugfs_root); qm->debug.debug_root = dir; + qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET; + qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN; ret = hisi_qm_debug_init(qm); if (ret) diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index 7c1982f..57ad131 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -176,9 +176,12 @@ #define QMC_ALIGN(sz) ALIGN(sz, 32) #define QM_DBG_READ_LEN 256 +#define QM_DBG_WRITE_LEN 1024 #define QM_DBG_TMP_BUF_LEN 22 #define QM_PCI_COMMAND_INVALID ~0 +#define QM_SQE_ADDR_MASK GENMASK(7, 0) + #define QM_MK_CQC_DW3_V1(hop_num, pg_sz, buf_sz, cqe_sz) \ (((hop_num) << QM_CQ_HOP_NUM_SHIFT) | \ ((pg_sz) << QM_CQ_PAGE_SIZE_SHIFT) | \ @@ -1064,6 +1067,473 @@ static const struct file_operations qm_regs_fops = { .release = single_release, }; +static ssize_t qm_cmd_read(struct file *filp, char __user *buffer, + size_t count, loff_t *pos) +{ + char buf[QM_DBG_READ_LEN]; + int len; + + if (*pos) + return 0; + + if (count < QM_DBG_READ_LEN) + return -ENOSPC; + + len = snprintf(buf, QM_DBG_READ_LEN, "%s\n", + "Please echo help to cmd to get help information"); + + if (copy_to_user(buffer, buf, len)) + return -EFAULT; + + return (*pos = len); +} + +static void *qm_ctx_alloc(struct hisi_qm *qm, size_t ctx_size, + dma_addr_t *dma_addr) +{ + struct device *dev = &qm->pdev->dev; + void *ctx_addr; + + ctx_addr = kzalloc(ctx_size, GFP_KERNEL); + if (!ctx_addr) + return ERR_PTR(-ENOMEM); + + *dma_addr = dma_map_single(dev, ctx_addr, ctx_size, DMA_FROM_DEVICE); + if (dma_mapping_error(dev, *dma_addr)) { + dev_err(dev, "DMA mapping error!\n"); + kfree(ctx_addr); + return ERR_PTR(-ENOMEM); + } + + return ctx_addr; +} + +static void qm_ctx_free(struct hisi_qm *qm, size_t ctx_size, + const void *ctx_addr, dma_addr_t *dma_addr) +{ + struct device *dev = &qm->pdev->dev; + + dma_unmap_single(dev, *dma_addr, ctx_size, DMA_FROM_DEVICE); + kfree(ctx_addr); +} + +static int dump_show(struct hisi_qm *qm, void *info, + unsigned int info_size, char *info_name) +{ + struct device *dev = &qm->pdev->dev; + u8 *info_buf, *info_curr = info; + u32 i; +#define BYTE_PER_DW 4 + + info_buf = kzalloc(info_size, GFP_KERNEL); + if (!info_buf) + return -ENOMEM; + + for (i = 0; i < info_size; i++, info_curr++) { + if (i % BYTE_PER_DW == 0) + info_buf[i + 3UL] = *info_curr; + else if (i % BYTE_PER_DW == 1) + info_buf[i + 1UL] = *info_curr; + else if (i % BYTE_PER_DW == 2) + info_buf[i - 1] = *info_curr; + else if (i % BYTE_PER_DW == 3) + info_buf[i - 3] = *info_curr; + } + + dev_info(dev, "%s DUMP\n", info_name); + for (i = 0; i < info_size; i += BYTE_PER_DW) { + pr_info("DW%d: %02X%02X %02X%02X\n", i / BYTE_PER_DW, + info_buf[i], info_buf[i + 1UL], + info_buf[i + 2UL], info_buf[i + 3UL]); + } + + kfree(info_buf); + + return 0; +} + +static int qm_dump_sqc_raw(struct hisi_qm *qm, dma_addr_t dma_addr, u16 qp_id) +{ + return qm_mb(qm, QM_MB_CMD_SQC, dma_addr, qp_id, 1); +} + +static int qm_dump_cqc_raw(struct hisi_qm *qm, dma_addr_t dma_addr, u16 qp_id) +{ + return qm_mb(qm, QM_MB_CMD_CQC, dma_addr, qp_id, 1); +} + +static int qm_sqc_dump(struct hisi_qm *qm, const char *s) +{ + struct device *dev = &qm->pdev->dev; + struct qm_sqc *sqc, *sqc_curr; + dma_addr_t sqc_dma; + u32 qp_id; + int ret; + + if (!s) + return -EINVAL; + + ret = kstrtou32(s, 0, &qp_id); + if (ret || qp_id >= qm->qp_num) { + dev_err(dev, "Please input qp num (0-%d)", qm->qp_num - 1); + return -EINVAL; + } + + sqc = qm_ctx_alloc(qm, sizeof(*sqc), &sqc_dma); + if (IS_ERR(sqc)) + return PTR_ERR(sqc); + + ret = qm_dump_sqc_raw(qm, sqc_dma, qp_id); + if (ret) { + down_read(&qm->qps_lock); + if (qm->sqc) { + sqc_curr = qm->sqc + qp_id; + + ret = dump_show(qm, sqc_curr, sizeof(*sqc), + "SOFT SQC"); + if (ret) + dev_info(dev, "Show soft sqc failed!\n"); + } + up_read(&qm->qps_lock); + + goto err_free_ctx; + } + + ret = dump_show(qm, sqc, sizeof(*sqc), "SQC"); + if (ret) + dev_info(dev, "Show hw sqc failed!\n"); + +err_free_ctx: + qm_ctx_free(qm, sizeof(*sqc), sqc, &sqc_dma); + return ret; +} + +static int qm_cqc_dump(struct hisi_qm *qm, const char *s) +{ + struct device *dev = &qm->pdev->dev; + struct qm_cqc *cqc, *cqc_curr; + dma_addr_t cqc_dma; + u32 qp_id; + int ret; + + if (!s) + return -EINVAL; + + ret = kstrtou32(s, 0, &qp_id); + if (ret || qp_id >= qm->qp_num) { + dev_err(dev, "Please input qp num (0-%d)", qm->qp_num - 1); + return -EINVAL; + } + + cqc = qm_ctx_alloc(qm, sizeof(*cqc), &cqc_dma); + if (IS_ERR(cqc)) + return PTR_ERR(cqc); + + ret = qm_dump_cqc_raw(qm, cqc_dma, qp_id); + if (ret) { + down_read(&qm->qps_lock); + if (qm->cqc) { + cqc_curr = qm->cqc + qp_id; + + ret = dump_show(qm, cqc_curr, sizeof(*cqc), + "SOFT CQC"); + if (ret) + dev_info(dev, "Show soft cqc failed!\n"); + } + up_read(&qm->qps_lock); + + goto err_free_ctx; + } + + ret = dump_show(qm, cqc, sizeof(*cqc), "CQC"); + if (ret) + dev_info(dev, "Show hw cqc failed!\n"); + +err_free_ctx: + qm_ctx_free(qm, sizeof(*cqc), cqc, &cqc_dma); + return ret; +} + +static int qm_eqc_aeqc_dump(struct hisi_qm *qm, char *s, size_t size, + int cmd, char *name) +{ + struct device *dev = &qm->pdev->dev; + dma_addr_t xeqc_dma; + void *xeqc; + int ret; + + if (strsep(&s, " ")) { + dev_err(dev, "Please do not input extra characters!\n"); + return -EINVAL; + } + + xeqc = qm_ctx_alloc(qm, size, &xeqc_dma); + if (IS_ERR(xeqc)) + return PTR_ERR(xeqc); + + ret = qm_mb(qm, cmd, xeqc_dma, 0, 1); + if (ret) + goto err_free_ctx; + + ret = dump_show(qm, xeqc, size, name); + if (ret) + dev_info(dev, "Show hw %s failed!\n", name); + +err_free_ctx: + qm_ctx_free(qm, size, xeqc, &xeqc_dma); + return ret; +} + +static int q_dump_param_parse(struct hisi_qm *qm, char *s, + u32 *e_id, u32 *q_id) +{ + struct device *dev = &qm->pdev->dev; + unsigned int qp_num = qm->qp_num; + char *presult; + int ret; + + presult = strsep(&s, " "); + if (!presult) { + dev_err(dev, "Please input qp number!\n"); + return -EINVAL; + } + + ret = kstrtou32(presult, 0, q_id); + if (ret || *q_id >= qp_num) { + dev_err(dev, "Please input qp num (0-%d)", qp_num - 1); + return -EINVAL; + } + + presult = strsep(&s, " "); + if (!presult) { + dev_err(dev, "Please input sqe number!\n"); + return -EINVAL; + } + + ret = kstrtou32(presult, 0, e_id); + if (ret || *e_id >= QM_Q_DEPTH) { + dev_err(dev, "Please input sqe num (0-%d)", QM_Q_DEPTH - 1); + return -EINVAL; + } + + if (strsep(&s, " ")) { + dev_err(dev, "Please do not input extra characters!\n"); + return -EINVAL; + } + + return 0; +} + +static int qm_sq_dump(struct hisi_qm *qm, char *s) +{ + struct device *dev = &qm->pdev->dev; + void *sqe, *sqe_curr; + struct hisi_qp *qp; + u32 qp_id, sqe_id; + int ret; + + ret = q_dump_param_parse(qm, s, &sqe_id, &qp_id); + if (ret) + return ret; + + sqe = kzalloc(qm->sqe_size * QM_Q_DEPTH, GFP_KERNEL); + if (!sqe) + return -ENOMEM; + + qp = &qm->qp_array[qp_id]; + memcpy(sqe, qp->sqe, qm->sqe_size * QM_Q_DEPTH); + sqe_curr = sqe + (u32)(sqe_id * qm->sqe_size); + memset(sqe_curr + qm->debug.sqe_mask_offset, QM_SQE_ADDR_MASK, + qm->debug.sqe_mask_len); + + ret = dump_show(qm, sqe_curr, qm->sqe_size, "SQE"); + if (ret) + dev_info(dev, "Show sqe failed!\n"); + + kfree(sqe); + + return ret; +} + +static int qm_cq_dump(struct hisi_qm *qm, char *s) +{ + struct device *dev = &qm->pdev->dev; + struct qm_cqe *cqe_curr; + struct hisi_qp *qp; + u32 qp_id, cqe_id; + int ret; + + ret = q_dump_param_parse(qm, s, &cqe_id, &qp_id); + if (ret) + return ret; + + qp = &qm->qp_array[qp_id]; + cqe_curr = qp->cqe + cqe_id; + ret = dump_show(qm, cqe_curr, sizeof(struct qm_cqe), "CQE"); + if (ret) + dev_info(dev, "Show cqe failed!\n"); + + return ret; +} + +static int qm_eq_aeq_dump(struct hisi_qm *qm, const char *s, + size_t size, char *name) +{ + struct device *dev = &qm->pdev->dev; + void *xeqe; + u32 xeqe_id; + int ret; + + if (!s) + return -EINVAL; + + ret = kstrtou32(s, 0, &xeqe_id); + if (ret || xeqe_id >= QM_Q_DEPTH) { + dev_err(dev, "Please input aeqe num (0-%d)", QM_Q_DEPTH - 1); + return -EINVAL; + } + + down_read(&qm->qps_lock); + + if (qm->eqe && !strcmp(name, "EQE")) { + xeqe = qm->eqe + xeqe_id; + } else if (qm->aeqe && !strcmp(name, "AEQE")) { + xeqe = qm->aeqe + xeqe_id; + } else { + ret = -EINVAL; + goto err_unlock; + } + + ret = dump_show(qm, xeqe, size, name); + if (ret) + dev_info(dev, "Show %s failed!\n", name); + +err_unlock: + up_read(&qm->qps_lock); + return ret; +} + +static int qm_dbg_help(struct hisi_qm *qm, char *s) +{ + struct device *dev = &qm->pdev->dev; + + if (strsep(&s, " ")) { + dev_err(dev, "Please do not input extra characters!\n"); + return -EINVAL; + } + + dev_info(dev, "available commands:\n"); + dev_info(dev, "sqc \n"); + dev_info(dev, "cqc \n"); + dev_info(dev, "eqc\n"); + dev_info(dev, "aeqc\n"); + dev_info(dev, "sq \n"); + dev_info(dev, "cq \n"); + dev_info(dev, "eq \n"); + dev_info(dev, "aeq \n"); + + return 0; +} + +static int qm_cmd_write_dump(struct hisi_qm *qm, const char *cmd_buf) +{ + struct device *dev = &qm->pdev->dev; + char *presult, *s; + int ret; + + s = kstrdup(cmd_buf, GFP_KERNEL); + if (!s) + return -ENOMEM; + + presult = strsep(&s, " "); + if (!presult) { + kfree(s); + return -EINVAL; + } + + if (!strcmp(presult, "sqc")) + ret = qm_sqc_dump(qm, s); + else if (!strcmp(presult, "cqc")) + ret = qm_cqc_dump(qm, s); + else if (!strcmp(presult, "eqc")) + ret = qm_eqc_aeqc_dump(qm, s, sizeof(struct qm_eqc), + QM_MB_CMD_EQC, "EQC"); + else if (!strcmp(presult, "aeqc")) + ret = qm_eqc_aeqc_dump(qm, s, sizeof(struct qm_aeqc), + QM_MB_CMD_AEQC, "AEQC"); + else if (!strcmp(presult, "sq")) + ret = qm_sq_dump(qm, s); + else if (!strcmp(presult, "cq")) + ret = qm_cq_dump(qm, s); + else if (!strcmp(presult, "eq")) + ret = qm_eq_aeq_dump(qm, s, sizeof(struct qm_eqe), "EQE"); + else if (!strcmp(presult, "aeq")) + ret = qm_eq_aeq_dump(qm, s, sizeof(struct qm_aeqe), "AEQE"); + else if (!strcmp(presult, "help")) + ret = qm_dbg_help(qm, s); + else + ret = -EINVAL; + + if (ret) + dev_info(dev, "Please echo help\n"); + + kfree(s); + + return ret; +} + +static ssize_t qm_cmd_write(struct file *filp, const char __user *buffer, + size_t count, loff_t *pos) +{ + struct hisi_qm *qm = filp->private_data; + char *cmd_buf, *cmd_buf_tmp; + int ret; + + if (*pos) + return 0; + + /* Judge if the instance is being reset. */ + if (unlikely(atomic_read(&qm->status.flags) == QM_STOP)) + return 0; + + if (count > QM_DBG_WRITE_LEN) + return -ENOSPC; + + cmd_buf = kzalloc(count + 1, GFP_KERNEL); + if (!cmd_buf) + return -ENOMEM; + + if (copy_from_user(cmd_buf, buffer, count)) { + kfree(cmd_buf); + return -EFAULT; + } + + cmd_buf[count] = '\0'; + + cmd_buf_tmp = strchr(cmd_buf, '\n'); + if (cmd_buf_tmp) { + *cmd_buf_tmp = '\0'; + count = cmd_buf_tmp - cmd_buf + 1; + } + + ret = qm_cmd_write_dump(qm, cmd_buf); + if (ret) { + kfree(cmd_buf); + return ret; + } + + kfree(cmd_buf); + + return count; +} + +static const struct file_operations qm_cmd_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = qm_cmd_read, + .write = qm_cmd_write, +}; + static int qm_create_debugfs_file(struct hisi_qm *qm, enum qm_debug_file index) { struct dentry *qm_d = qm->debug.qm_d; @@ -1389,45 +1859,6 @@ int hisi_qm_start_qp(struct hisi_qp *qp, unsigned long arg) } EXPORT_SYMBOL_GPL(hisi_qm_start_qp); -static void *qm_ctx_alloc(struct hisi_qm *qm, size_t ctx_size, - dma_addr_t *dma_addr) -{ - struct device *dev = &qm->pdev->dev; - void *ctx_addr; - - ctx_addr = kzalloc(ctx_size, GFP_KERNEL); - if (!ctx_addr) - return ERR_PTR(-ENOMEM); - - *dma_addr = dma_map_single(dev, ctx_addr, ctx_size, DMA_FROM_DEVICE); - if (dma_mapping_error(dev, *dma_addr)) { - dev_err(dev, "DMA mapping error!\n"); - kfree(ctx_addr); - return ERR_PTR(-ENOMEM); - } - - return ctx_addr; -} - -static void qm_ctx_free(struct hisi_qm *qm, size_t ctx_size, - const void *ctx_addr, dma_addr_t *dma_addr) -{ - struct device *dev = &qm->pdev->dev; - - dma_unmap_single(dev, *dma_addr, ctx_size, DMA_FROM_DEVICE); - kfree(ctx_addr); -} - -static int qm_dump_sqc_raw(struct hisi_qm *qm, dma_addr_t dma_addr, u16 qp_id) -{ - return qm_mb(qm, QM_MB_CMD_SQC, dma_addr, qp_id, 1); -} - -static int qm_dump_cqc_raw(struct hisi_qm *qm, dma_addr_t dma_addr, u16 qp_id) -{ - return qm_mb(qm, QM_MB_CMD_CQC, dma_addr, qp_id, 1); -} - /** * Determine whether the queue is cleared by judging the tail pointers of * sq and cq. @@ -2346,6 +2777,8 @@ int hisi_qm_debug_init(struct hisi_qm *qm) debugfs_create_file("qm_regs", 0444, qm->debug.qm_d, qm, &qm_regs_fops); + debugfs_create_file("cmd", 0444, qm->debug.qm_d, qm, &qm_cmd_fops); + debugfs_create_file("status", 0444, qm->debug.qm_d, qm, &qm_status_fops); for (i = 0; i < ARRAY_SIZE(qm_dfx_files); i++) { diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h index e4b46a7..6326744 100644 --- a/drivers/crypto/hisilicon/qm.h +++ b/drivers/crypto/hisilicon/qm.h @@ -137,6 +137,8 @@ struct debugfs_file { struct qm_debug { u32 curr_qm_qp_num; + u32 sqe_mask_offset; + u32 sqe_mask_len; struct qm_dfx dfx; struct dentry *debug_root; struct dentry *qm_d; diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c index 5ea44ad..829959b 100644 --- a/drivers/crypto/hisilicon/sec2/sec_main.c +++ b/drivers/crypto/hisilicon/sec2/sec_main.c @@ -80,6 +80,9 @@ #define SEC_VF_CNT_MASK 0xffffffc0 #define SEC_DBGFS_VAL_MAX_LEN 20 +#define SEC_SQE_MASK_OFFSET 64 +#define SEC_SQE_MASK_LEN 48 + #define SEC_ADDR(qm, offset) ((qm)->io_base + (offset) + \ SEC_ENGINE_PF_CFG_OFF + SEC_ACC_COMMON_REG_OFF) @@ -632,6 +635,9 @@ static int sec_debugfs_init(struct sec_dev *sec) qm->debug.debug_root = debugfs_create_dir(dev_name(dev), sec_debugfs_root); + + qm->debug.sqe_mask_offset = SEC_SQE_MASK_OFFSET; + qm->debug.sqe_mask_len = SEC_SQE_MASK_LEN; ret = hisi_qm_debug_init(qm); if (ret) goto failed_to_create; diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index cb3ed6b..87db2e1 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -89,6 +89,8 @@ #define HZIP_WR_PORT BIT(11) #define HZIP_BUF_SIZE 22 +#define HZIP_SQE_MASK_OFFSET 64 +#define HZIP_SQE_MASK_LEN 48 static const char hisi_zip_name[] = "hisi_zip"; static struct dentry *hzip_debugfs_root; @@ -578,6 +580,8 @@ static int hisi_zip_debugfs_init(struct hisi_zip *hisi_zip) dev_d = debugfs_create_dir(dev_name(dev), hzip_debugfs_root); + qm->debug.sqe_mask_offset = HZIP_SQE_MASK_OFFSET; + qm->debug.sqe_mask_len = HZIP_SQE_MASK_LEN; qm->debug.debug_root = dev_d; ret = hisi_qm_debug_init(qm); if (ret) -- 2.7.4