@@ -12,3 +12,7 @@ config CRYPTO_DEV_HISI_SEC
To compile this as a module, choose M here: the module
will be called hisi_sec.
+
+config CRYPTO_DEV_HISI_QM
+ tristate
+ depends on ARM64 && PCI && PCI_MSI
@@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_CRYPTO_DEV_HISI_SEC) += sec/
+obj-$(CONFIG_CRYPTO_DEV_HISI_QM) += qm.o
new file mode 100644
@@ -0,0 +1,1823 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 Hisilicon Limited. */
+#include <asm/page.h>
+#include <linux/bitmap.h>
+#include <linux/debugfs.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/irqreturn.h>
+#include <linux/log2.h>
+#include <linux/seq_file.h>
+#include "qm.h"
+
+/* eq/aeq irq enable */
+#define QM_VF_EQ_INT_SOURCE 0x8
+#define QM_VF_EQ_INT_MASK 0xc
+
+/* mailbox */
+#define QM_MB_CMD_SQC 0x0
+#define QM_MB_CMD_CQC 0x1
+#define QM_MB_CMD_EQC 0x2
+#define QM_MB_CMD_AEQC 0x3
+#define QM_MB_CMD_SQC_BT 0x4
+#define QM_MB_CMD_CQC_BT 0x5
+#define QM_MB_CMD_SQC_VFT_V2 0x6
+
+#define QM_MB_CMD_SEND_BASE 0x300
+#define QM_MB_EVENT_SHIFT 8
+#define QM_MB_BUSY_SHIFT 13
+#define QM_MB_OP_SHIFT 14
+#define QM_MB_CMD_DATA_ADDR_L 0x304
+#define QM_MB_CMD_DATA_ADDR_H 0x308
+
+/* sqc shift */
+#define QM_SQ_HOP_NUM_SHIFT 0
+#define QM_SQ_PAGE_SIZE_SHIFT 4
+#define QM_SQ_BUF_SIZE_SHIFT 8
+#define QM_SQ_SQE_SIZE_SHIFT 12
+#define QM_SQ_PRIORITY_SHIFT 0
+#define QM_SQ_ORDERS_SHIFT 4
+#define QM_SQ_TYPE_SHIFT 8
+
+#define QM_SQ_TYPE_MASK 0xf
+
+/* cqc shift */
+#define QM_CQ_HOP_NUM_SHIFT 0
+#define QM_CQ_PAGE_SIZE_SHIFT 4
+#define QM_CQ_BUF_SIZE_SHIFT 8
+#define QM_CQ_SQE_SIZE_SHIFT 12
+#define QM_CQ_PHASE_SHIFT 0
+#define QM_CQ_FLAG_SHIFT 1
+
+#define QM_CQC_PHASE_BIT 0x1
+#define QM_CQE_PHASE(cqe) ((cqe)->w7 & 0x1)
+
+/* eqc shift */
+#define QM_EQC_EQE_SHIFT 12
+#define QM_EQC_PHASE_SHIFT 16
+#define QM_EQC_PHASE(eqc) ((((eqc)->dw6) >> 16) & 0x1)
+#define QM_EQC_PHASE_BIT 0x00010000
+
+#define QM_EQE_PHASE(eqe) (((eqe)->dw0 >> 16) & 0x1)
+#define QM_EQE_CQN_MASK 0xffff
+
+#define QM_AEQC_PHASE(aeqc) ((((aeqc)->dw6) >> 16) & 0x1)
+#define QM_AEQC_PHASE_BIT 0x00010000
+#define QM_AEQE_PHASE(aeqe) (((aeqe)->dw0 >> 16) & 0x1)
+
+#define QM_DOORBELL_CMD_SQ 0
+#define QM_DOORBELL_CMD_CQ 1
+#define QM_DOORBELL_CMD_EQ 2
+#define QM_DOORBELL_CMD_AEQ 3
+
+#define QM_DOORBELL_BASE_V1 0x340
+#define QM_DOORBELL_SQ_CQ_BASE_V2 0x1000
+#define QM_DOORBELL_EQ_AEQ_BASE_V2 0x2000
+
+#define QM_MEM_START_INIT 0x100040
+#define QM_MEM_INIT_DONE 0x100044
+#define QM_VFT_CFG_RDY 0x10006c
+#define QM_VFT_CFG_OP_WR 0x100058
+#define QM_VFT_CFG_TYPE 0x10005c
+#define QM_SQC_VFT 0x0
+#define QM_CQC_VFT 0x1
+#define QM_VFT_CFG_ADDRESS 0x100060
+#define QM_VFT_CFG_OP_ENABLE 0x100054
+
+#define QM_VFT_CFG_DATA_L 0x100064
+#define QM_VFT_CFG_DATA_H 0x100068
+#define QM_SQC_VFT_BUF_SIZE (7ULL << 8)
+#define QM_SQC_VFT_SQC_SIZE (5ULL << 12)
+#define QM_SQC_VFT_INDEX_NUMBER (1ULL << 16)
+#define QM_SQC_VFT_START_SQN_SHIFT 28
+#define QM_SQC_VFT_VALID (1ULL << 44)
+#define QM_SQC_VFT_SQN_SHIFT 45
+#define QM_CQC_VFT_BUF_SIZE (7ULL << 8)
+#define QM_CQC_VFT_SQC_SIZE (5ULL << 12)
+#define QM_CQC_VFT_INDEX_NUMBER (1ULL << 16)
+#define QM_CQC_VFT_VALID (1ULL << 28)
+
+#define QM_SQC_VFT_BASE_SHIFT_V2 28
+#define QM_SQC_VFT_BASE_MASK_V2 0x3f
+#define QM_SQC_VFT_NUM_SHIFT_V2 45
+#define QM_SQC_VFT_NUM_MASK_v2 0x3ff
+
+#define QM_DFX_SQE_CNT_VF_SQN 0x104030
+#define QM_DFX_CQE_CNT_VF_CQN 0x104040
+#define QM_DFX_CNT_CLR_CE 0x100118
+
+#define QM_ABNORMAL_INT_SOURCE 0x100000
+#define QM_ABNORMAL_INT_MASK 0x100004
+#define QM_ABNORMAL_INT_STATUS 0x100008
+#define QM_ABNORMAL_INF00 0x100010
+#define QM_FIFO_OVERFLOW_TYPE 0xc0
+#define QM_FIFO_OVERFLOW_VF 0x3f
+#define QM_ABNORMAL_INF01 0x100014
+#define QM_DB_TIMEOUT_TYPE 0xc0
+#define QM_DB_TIMEOUT_VF 0x3f
+#define QM_RAS_CE_ENABLE 0x1000ec
+#define QM_RAS_FE_ENABLE 0x1000f0
+#define QM_RAS_NFE_ENABLE 0x1000f4
+#define QM_RAS_CE_THRESHOLD 0x1000f8
+#define QM_RAS_MSI_INT_SEL 0x1040f4
+
+struct qm_cqe {
+ __le32 rsvd0;
+ __le16 cmd_id;
+ __le16 rsvd1;
+ __le16 sq_head;
+ __le16 sq_num;
+ __le16 rsvd2;
+ __le16 w7;
+};
+
+struct qm_eqe {
+ __le32 dw0;
+};
+
+struct qm_aeqe {
+ __le32 dw0;
+};
+
+struct qm_sqc {
+ __le16 head;
+ __le16 tail;
+ __le32 base_l;
+ __le32 base_h;
+ __le32 dw3;
+ __le16 w8;
+ __le16 rsvd0;
+ __le16 pasid;
+ __le16 w11;
+ __le16 cq_num;
+ __le16 w13;
+ __le32 rsvd1;
+};
+
+struct qm_cqc {
+ __le16 head;
+ __le16 tail;
+ __le32 base_l;
+ __le32 base_h;
+ __le32 dw3;
+ __le16 w8;
+ __le16 rsvd0;
+ __le16 pasid;
+ __le16 w11;
+ __le32 dw6;
+ __le32 rsvd1;
+};
+
+#define INIT_QC_COMMON(qc, base) do { \
+ (qc)->head = 0; \
+ (qc)->tail = 0; \
+ (qc)->base_l = lower_32_bits(base); \
+ (qc)->base_h = upper_32_bits(base); \
+ (qc)->pasid = 0; \
+ (qc)->w11 = 0; \
+ (qc)->rsvd1 = 0; \
+} while (0)
+
+struct qm_eqc {
+ __le16 head;
+ __le16 tail;
+ __le32 base_l;
+ __le32 base_h;
+ __le32 dw3;
+ __le32 rsvd[2];
+ __le32 dw6;
+};
+
+struct qm_aeqc {
+ __le16 head;
+ __le16 tail;
+ __le32 base_l;
+ __le32 base_h;
+ __le32 dw3;
+ __le32 rsvd[2];
+ __le32 dw6;
+};
+
+struct qm_mailbox {
+ __le16 w0;
+ __le16 queue_num;
+ __le32 base_l;
+ __le32 base_h;
+ __le32 rsvd;
+};
+
+struct qm_doorbell {
+ __le16 queue_num;
+ __le16 cmd;
+ __le16 index;
+ __le16 priority;
+};
+
+enum vft_type {
+ SQC_VFT = 0,
+ CQC_VFT,
+};
+
+struct hisi_qm_hw_ops {
+ int (*set_vft)(struct hisi_qm *qm, u32 fun_num, u32 base, u32 number);
+ int (*get_vft)(struct hisi_qm *qm, u32 *base, u32 *number);
+ int (*qm_start_qp)(struct hisi_qp *qp, unsigned long arg);
+ void (*qm_db)(struct hisi_qm *qm, u16 qn,
+ u8 cmd, u16 index, u8 priority);
+ u32 (*get_irq_num)(struct hisi_qm *qm);
+ int (*debug_init)(struct hisi_qm *qm);
+ void (*hw_error_init)(struct hisi_qm *qm, u32 ce, u32 nfe, u32 fe,
+ u32 msi);
+ pci_ers_result_t (*hw_error_handle)(struct hisi_qm *qm);
+};
+
+static const char * const qm_debug_file_name[] = {
+ [CURRENT_Q] = "current_q",
+ [CLEAR_ENABLE] = "clear_enable",
+};
+
+struct hisi_qm_hw_error {
+ u32 int_msk;
+ const char *msg;
+};
+
+static const struct hisi_qm_hw_error qm_hw_error[] = {
+ { .int_msk = BIT(0), .msg = "qm_axi_rresp" },
+ { .int_msk = BIT(1), .msg = "qm_axi_bresp" },
+ { .int_msk = BIT(2), .msg = "qm_ecc_mbit" },
+ { .int_msk = BIT(3), .msg = "qm_ecc_1bit" },
+ { .int_msk = BIT(4), .msg = "qm_acc_get_task_timeout" },
+ { .int_msk = BIT(5), .msg = "qm_acc_do_task_timeout" },
+ { .int_msk = BIT(6), .msg = "qm_acc_wb_not_ready_timeout" },
+ { .int_msk = BIT(7), .msg = "qm_sq_cq_vf_invalid" },
+ { .int_msk = BIT(8), .msg = "qm_cq_vf_invalid" },
+ { .int_msk = BIT(9), .msg = "qm_sq_vf_invalid" },
+ { .int_msk = BIT(10), .msg = "qm_db_timeout" },
+ { .int_msk = BIT(11), .msg = "qm_of_fifo_of" },
+ { .int_msk = BIT(12), .msg = "qm_db_random_invalid" },
+ { /* sentinel */ }
+};
+
+static const char * const qm_db_timeout[] = {
+ "sq", "cq", "eq", "aeq",
+};
+
+static const char * const qm_fifo_overflow[] = {
+ "cq", "eq", "aeq",
+};
+
+/* return 0 mailbox ready, -ETIMEDOUT hardware timeout */
+static int qm_wait_mb_ready(struct hisi_qm *qm)
+{
+ u32 val;
+
+ return readl_relaxed_poll_timeout(qm->io_base + QM_MB_CMD_SEND_BASE,
+ val, !((val >> QM_MB_BUSY_SHIFT) & 0x1), 10, 1000);
+}
+
+/* 128 bit should be wrote to hardware at one time to trigger a mailbox */
+static void qm_mb_write(struct hisi_qm *qm, void *src)
+{
+ void __iomem *fun_base = qm->io_base + QM_MB_CMD_SEND_BASE;
+ unsigned long tmp0 = 0, tmp1 = 0;
+
+ asm volatile("ldp %0, %1, %3\n"
+ "stp %0, %1, %2\n"
+ "dsb sy\n"
+ : "=&r" (tmp0),
+ "=&r" (tmp1),
+ "+Q" (*((char *)fun_base))
+ : "Q" (*((char *)src))
+ : "memory");
+}
+
+static int qm_mb(struct hisi_qm *qm, u8 cmd, dma_addr_t dma_addr, u16 queue,
+ bool op, bool event)
+{
+ struct qm_mailbox mailbox;
+ int ret = 0;
+
+ dev_dbg(&qm->pdev->dev, "QM mailbox request to q%u: %u-%llx\n", queue,
+ cmd, dma_addr);
+
+ mailbox.w0 = cmd |
+ (event ? 0x1 << QM_MB_EVENT_SHIFT : 0) |
+ (op ? 0x1 << QM_MB_OP_SHIFT : 0) |
+ (0x1 << QM_MB_BUSY_SHIFT);
+ mailbox.queue_num = queue;
+ mailbox.base_l = lower_32_bits(dma_addr);
+ mailbox.base_h = upper_32_bits(dma_addr);
+ mailbox.rsvd = 0;
+
+ mutex_lock(&qm->mailbox_lock);
+
+ if (unlikely(qm_wait_mb_ready(qm))) {
+ ret = -EBUSY;
+ dev_err(&qm->pdev->dev, "QM mailbox is busy to start!\n");
+ goto busy_unlock;
+ }
+
+ qm_mb_write(qm, &mailbox);
+
+ if (unlikely(qm_wait_mb_ready(qm))) {
+ ret = -EBUSY;
+ dev_err(&qm->pdev->dev, "QM mailbox operation timeout!\n");
+ goto busy_unlock;
+ }
+
+busy_unlock:
+ mutex_unlock(&qm->mailbox_lock);
+
+ return ret;
+}
+
+static void qm_db_v1(struct hisi_qm *qm, u16 qn, u8 cmd, u16 index, u8 priority)
+{
+ u64 doorbell = 0;
+
+ doorbell = qn | ((u64)cmd << 16) | ((u64)index << 32) |
+ ((u64)priority << 48);
+
+ writeq(doorbell, qm->io_base + QM_DOORBELL_BASE_V1);
+}
+
+static void qm_db_v2(struct hisi_qm *qm, u16 qn, u8 cmd, u16 index, u8 priority)
+{
+ u64 doorbell = 0;
+ u16 randate = 0;
+ u64 dbase;
+
+ if (cmd == QM_DOORBELL_CMD_SQ || cmd == QM_DOORBELL_CMD_CQ)
+ dbase = QM_DOORBELL_SQ_CQ_BASE_V2;
+ else
+ dbase = QM_DOORBELL_EQ_AEQ_BASE_V2;
+
+ doorbell = qn | ((u64)cmd << 12) | ((u64)randate << 16) |
+ ((u64)index << 32) | ((u64)priority << 48);
+
+ writeq(doorbell, qm->io_base + dbase);
+}
+
+static void qm_db(struct hisi_qm *qm, u16 qn, u8 cmd, u16 index, u8 priority)
+{
+ dev_dbg(&qm->pdev->dev, "QM doorbell request: qn=%u, cmd=%u, index=%u\n",
+ qn, cmd, index);
+
+ qm->ops->qm_db(qm, qn, cmd, index, priority);
+}
+
+static u32 qm_get_irq_num_v1(struct hisi_qm *qm)
+{
+ return 1;
+}
+
+static u32 qm_get_irq_num_v2(struct hisi_qm *qm)
+{
+ if (qm->fun_type == QM_HW_PF)
+ return 4;
+ else
+ return 2;
+}
+
+static struct hisi_qp *qm_to_hisi_qp(struct hisi_qm *qm, struct qm_eqe *eqe)
+{
+ u16 cqn = eqe->dw0 & QM_EQE_CQN_MASK;
+ struct hisi_qp *qp;
+
+ read_lock(&qm->qps_lock);
+ qp = qm->qp_array[cqn];
+ read_unlock(&qm->qps_lock);
+
+ return qp;
+}
+
+static void qm_cq_head_update(struct hisi_qp *qp)
+{
+ struct qm_cqc *cqc = qp->cqc.addr;
+
+ if (qp->qp_status.cq_head == QM_Q_DEPTH - 1) {
+ cqc->dw6 = cqc->dw6 ^ QM_CQC_PHASE_BIT;
+ qp->qp_status.cq_head = 0;
+ } else {
+ qp->qp_status.cq_head++;
+ }
+}
+
+static void qm_poll_qp(struct hisi_qp *qp, struct hisi_qm *qm)
+{
+ struct qm_cqe *cq_base = qp->scqe.addr + qp->qm->sqe_size * QM_Q_DEPTH;
+ struct qm_cqc *cqc = qp->cqc.addr;
+ struct qm_cqe *cqe;
+
+ cqe = cq_base + qp->qp_status.cq_head;
+
+ if (qp->req_cb) {
+ while (QM_CQE_PHASE(cqe) == (cqc->dw6 & 0x1)) {
+ dma_rmb();
+ qp->req_cb(qp, qp->scqe.addr + qm->sqe_size *
+ cqe->sq_head);
+ qm_cq_head_update(qp);
+ cqe = cq_base + qp->qp_status.cq_head;
+ atomic_dec(&qp->qp_status.used);
+ }
+ } else {
+ dma_rmb();
+ complete(&qp->completion);
+ qm_cq_head_update(qp);
+ cqe = cq_base + qp->qp_status.cq_head;
+ atomic_dec(&qp->qp_status.used);
+ }
+
+ qm_db(qm, qp->qp_id, QM_DOORBELL_CMD_CQ, qp->qp_status.cq_head, 0);
+
+ /* set c_flag */
+ qm_db(qm, qp->qp_id, QM_DOORBELL_CMD_CQ, qp->qp_status.cq_head, 1);
+}
+
+static irqreturn_t qm_irq_thread(int irq, void *data)
+{
+ struct hisi_qm *qm = data;
+ struct qm_eqe *eqe = qm->eqe.addr + qm->eq_head * sizeof(struct qm_eqe);
+ struct qm_eqc *eqc = qm->eqc.addr;
+ struct hisi_qp *qp;
+
+ while (QM_EQE_PHASE(eqe) == QM_EQC_PHASE(eqc)) {
+ qp = qm_to_hisi_qp(qm, eqe);
+ if (qp)
+ qm_poll_qp(qp, qm);
+
+ if (qm->eq_head == QM_Q_DEPTH - 1) {
+ eqc->dw6 = eqc->dw6 ^ QM_EQC_PHASE_BIT;
+ eqe = qm->eqe.addr;
+ qm->eq_head = 0;
+ } else {
+ eqe++;
+ qm->eq_head++;
+ }
+
+ qm_db(qm, 0, QM_DOORBELL_CMD_EQ, qm->eq_head, 0);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t qm_irq(int irq, void *data)
+{
+ struct hisi_qm *qm = data;
+
+ if (readl(qm->io_base + QM_VF_EQ_INT_SOURCE))
+ return IRQ_WAKE_THREAD;
+
+ dev_err(&qm->pdev->dev, "invalid int source\n");
+
+ return IRQ_NONE;
+}
+
+static irqreturn_t qm_aeq_irq(int irq, void *data)
+{
+ struct hisi_qm *qm = data;
+ struct qm_aeqe *aeqe = qm->aeqe.addr +
+ qm->aeq_head * sizeof(struct qm_aeqe);
+ struct qm_aeqc *aeqc = qm->aeqc.addr;
+ u32 type;
+
+ while (QM_AEQE_PHASE(aeqe) == QM_AEQC_PHASE(aeqc)) {
+ type = aeqe->dw0 >> 16;
+ if (type < ARRAY_SIZE(qm_fifo_overflow))
+ dev_err(&qm->pdev->dev, "%s overflow\n",
+ qm_fifo_overflow[type]);
+ else
+ dev_err(&qm->pdev->dev, "unknown error type\n");
+
+ if (qm->aeq_head == QM_Q_DEPTH - 1) {
+ aeqc->dw6 = aeqc->dw6 ^ QM_AEQC_PHASE_BIT;
+ aeqe = qm->aeqe.addr;
+ qm->aeq_head = 0;
+ } else {
+ aeqe++;
+ qm->aeq_head++;
+ }
+
+ qm_db(qm, 0, QM_DOORBELL_CMD_AEQ, qm->aeq_head, 0);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t qm_abnormal_irq(int irq, void *data)
+{
+ const struct hisi_qm_hw_error *err = qm_hw_error;
+ struct hisi_qm *qm = data;
+ struct device *dev = &qm->pdev->dev;
+ u32 error_status, tmp;
+
+ /* read err sts */
+ tmp = readl(qm->io_base + QM_ABNORMAL_INT_STATUS);
+ error_status = qm->msi_mask & tmp;
+
+ while (err->msg) {
+ if (err->int_msk & error_status)
+ dev_warn(dev, "%s [error status=0x%x] found\n",
+ err->msg, err->int_msk);
+
+ err++;
+ }
+
+ /* clear err sts */
+ writel(error_status, qm->io_base + QM_ABNORMAL_INT_SOURCE);
+
+ return IRQ_HANDLED;
+}
+
+static int qm_irq_register(struct hisi_qm *qm)
+{
+ struct pci_dev *pdev = qm->pdev;
+ int ret;
+
+ ret = request_threaded_irq(pci_irq_vector(pdev, 0), qm_irq,
+ qm_irq_thread, IRQF_SHARED, qm->dev_name,
+ qm);
+ if (ret)
+ return ret;
+
+ if (qm->ver == QM_HW_V2) {
+ ret = request_irq(pci_irq_vector(pdev, 1), qm_aeq_irq,
+ IRQF_SHARED, qm->dev_name, qm);
+ if (ret)
+ goto err_aeq_irq;
+
+ if (qm->fun_type == QM_HW_PF) {
+ ret = request_irq(pci_irq_vector(pdev, 3),
+ qm_abnormal_irq, IRQF_SHARED,
+ qm->dev_name, qm);
+ if (ret)
+ goto err_abonormal_irq;
+ }
+ }
+
+ return 0;
+
+err_abonormal_irq:
+ free_irq(pci_irq_vector(pdev, 1), qm);
+err_aeq_irq:
+ free_irq(pci_irq_vector(pdev, 0), qm);
+ return ret;
+}
+
+static void qm_irq_unregister(struct hisi_qm *qm)
+{
+ struct pci_dev *pdev = qm->pdev;
+
+ free_irq(pci_irq_vector(pdev, 0), qm);
+
+ if (qm->ver == QM_HW_V2) {
+ free_irq(pci_irq_vector(pdev, 1), qm);
+
+ if (qm->fun_type == QM_HW_PF)
+ free_irq(pci_irq_vector(pdev, 3), qm);
+ }
+}
+
+static void qm_init_qp_status(struct hisi_qp *qp)
+{
+ struct hisi_qp_status *qp_status = &qp->qp_status;
+
+ qp_status->sq_tail = 0;
+ qp_status->sq_head = 0;
+ qp_status->cq_head = 0;
+ qp_status->cqc_phase = 1;
+ qp_status->flags = 0;
+}
+
+/*
+ * Allocate sq,cq,eq,aeq,sqc,cqc,eqc,aeqc buffer.
+ *
+ * Note: sq should 128 bypte alignment, 32 byte alignment for other queues and
+ * queue contexts.
+ */
+static int qm_init_q_buffer(struct device *dev, size_t size,
+ struct qm_dma_buffer *db)
+{
+ db->addr = dma_zalloc_coherent(dev, size, &db->dma, GFP_KERNEL);
+ if (!db->addr)
+ return -ENOMEM;
+
+ db->size = size;
+
+ return 0;
+}
+
+static void qm_uninit_q_buffer(struct device *dev, struct qm_dma_buffer *db)
+{
+ dma_free_coherent(dev, db->size, db->addr, db->dma);
+
+ db->size = 0;
+ db->addr = NULL;
+ db->dma = 0;
+}
+
+static void qm_vft_data_cfg(struct hisi_qm *qm, enum vft_type type, u32 base,
+ u32 number)
+{
+ u64 tmp = 0;
+
+ switch (type) {
+ case SQC_VFT:
+ switch (qm->ver) {
+ case QM_HW_V1:
+ tmp = QM_SQC_VFT_BUF_SIZE |
+ QM_SQC_VFT_SQC_SIZE |
+ QM_SQC_VFT_INDEX_NUMBER |
+ QM_SQC_VFT_VALID |
+ (u64)base << QM_SQC_VFT_START_SQN_SHIFT;
+ break;
+ case QM_HW_V2:
+ tmp = (u64)number << QM_SQC_VFT_SQN_SHIFT |
+ QM_SQC_VFT_VALID |
+ (u64)base << QM_SQC_VFT_START_SQN_SHIFT;
+ break;
+ case QM_HW_UNKNOWN:
+ break;
+ }
+ break;
+ case CQC_VFT:
+ switch (qm->ver) {
+ case QM_HW_V1:
+ tmp = QM_CQC_VFT_BUF_SIZE |
+ QM_CQC_VFT_SQC_SIZE |
+ QM_CQC_VFT_INDEX_NUMBER |
+ QM_CQC_VFT_VALID;
+ break;
+ case QM_HW_V2:
+ tmp = QM_CQC_VFT_VALID;
+ break;
+ case QM_HW_UNKNOWN:
+ break;
+ }
+ break;
+ }
+
+ writel(lower_32_bits(tmp), qm->io_base + QM_VFT_CFG_DATA_L);
+ writel(upper_32_bits(tmp), qm->io_base + QM_VFT_CFG_DATA_H);
+}
+
+static int qm_set_vft_common(struct hisi_qm *qm, enum vft_type type,
+ u32 fun_num, u32 base, u32 number)
+{
+ int val, ret;
+
+ ret = readl_relaxed_poll_timeout(qm->io_base + QM_VFT_CFG_RDY, val,
+ val & BIT(0), 10, 1000);
+ if (ret)
+ return ret;
+
+ writel(0x0, qm->io_base + QM_VFT_CFG_OP_WR);
+ writel(type, qm->io_base + QM_VFT_CFG_TYPE);
+ writel(fun_num, qm->io_base + QM_VFT_CFG_ADDRESS);
+
+ qm_vft_data_cfg(qm, type, base, number);
+
+ writel(0x0, qm->io_base + QM_VFT_CFG_RDY);
+ writel(0x1, qm->io_base + QM_VFT_CFG_OP_ENABLE);
+
+ return readl_relaxed_poll_timeout(qm->io_base + QM_VFT_CFG_RDY, val,
+ val & BIT(0), 10, 1000);
+}
+
+/* The config should be conducted after hisi_qm_mem_start() */
+static int qm_set_sqc_cqc_vft(struct hisi_qm *qm, u32 fun_num, u32 base,
+ u32 number)
+{
+ int ret, i;
+
+ for (i = SQC_VFT; i <= CQC_VFT; i++) {
+ ret = qm_set_vft_common(qm, i, fun_num, base, number);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int qm_get_vft_v2(struct hisi_qm *qm, u32 *base, u32 *number)
+{
+ u64 sqc_vft;
+ int ret;
+
+ ret = qm_mb(qm, QM_MB_CMD_SQC_VFT_V2, 0, 0, 1, 0);
+ if (ret)
+ return ret;
+
+ sqc_vft = readl(qm->io_base + QM_MB_CMD_DATA_ADDR_L) |
+ ((u64)readl(qm->io_base + QM_MB_CMD_DATA_ADDR_H) << 32);
+ *base = QM_SQC_VFT_BASE_MASK_V2 & (sqc_vft >> QM_SQC_VFT_BASE_SHIFT_V2);
+ *number = QM_SQC_VFT_NUM_MASK_v2 & (sqc_vft >> QM_SQC_VFT_NUM_SHIFT_V2);
+
+ return 0;
+}
+
+static int qm_init_qp_mem(struct hisi_qp *qp)
+{
+ struct hisi_qm *qm = qp->qm;
+ struct device *dev = &qm->pdev->dev;
+
+ /* allocate sq and cq */
+ return qm_init_q_buffer(dev, (qm->sqe_size + sizeof(struct qm_cqe)) *
+ QM_Q_DEPTH, &qp->scqe);
+}
+
+static void qm_init_qp_sqc_cqc_mem(struct hisi_qp *qp)
+{
+ struct hisi_qm *qm = qp->qm;
+ int qp_id = qp->qp_id;
+
+ qp->sqc.addr = qm->sqc.addr + qp_id * sizeof(struct qm_sqc);
+ qp->sqc.dma = qm->sqc.dma + qp_id * sizeof(struct qm_sqc);
+ qp->cqc.addr = qm->cqc.addr + qp_id * sizeof(struct qm_cqc);
+ qp->cqc.dma = qm->cqc.dma + qp_id * sizeof(struct qm_cqc);
+}
+
+static void qm_uninit_qp_mem(struct hisi_qp *qp)
+{
+ struct device *dev = &qp->qm->pdev->dev;
+
+ qm_uninit_q_buffer(dev, &qp->scqe);
+}
+
+static void qm_uninit_qp_sqc_cqc_mem(struct hisi_qp *qp)
+{
+ qp->sqc.addr = NULL;
+ qp->sqc.dma = 0;
+ qp->cqc.addr = NULL;
+ qp->cqc.dma = 0;
+}
+
+static int qm_start_qp(struct hisi_qp *qp, unsigned long arg)
+{
+ struct hisi_qm *qm = qp->qm;
+ int qp_id = qp->qp_id;
+ struct device *dev = &qm->pdev->dev;
+ enum qm_hw_ver ver = qm->ver;
+ struct qm_sqc *sqc;
+ struct qm_cqc *cqc;
+ int pasid = arg;
+ int ret;
+
+ sqc = qp->sqc.addr;
+ INIT_QC_COMMON(sqc, qp->scqe.dma);
+ sqc->pasid = pasid;
+ if (ver == QM_HW_V1) {
+ sqc->dw3 = (0 << QM_SQ_HOP_NUM_SHIFT) |
+ (0 << QM_SQ_PAGE_SIZE_SHIFT) |
+ (0 << QM_SQ_BUF_SIZE_SHIFT) |
+ (ilog2(qm->sqe_size) << QM_SQ_SQE_SIZE_SHIFT);
+ sqc->w8 = QM_Q_DEPTH - 1;
+ } else if (ver == QM_HW_V2) {
+ sqc->dw3 = (QM_Q_DEPTH - 1) |
+ (ilog2(qm->sqe_size) << QM_SQ_SQE_SIZE_SHIFT);
+ sqc->w8 = 0; /* rand_qc */
+ }
+ sqc->cq_num = qp_id;
+ sqc->w13 = 0 << QM_SQ_PRIORITY_SHIFT |
+ 1 << QM_SQ_ORDERS_SHIFT |
+ (qp->alg_type & QM_SQ_TYPE_MASK) << QM_SQ_TYPE_SHIFT;
+
+ ret = qm_mb(qm, QM_MB_CMD_SQC, qp->sqc.dma, qp_id, 0, 0);
+ if (ret)
+ return ret;
+
+ cqc = qp->cqc.addr;
+ INIT_QC_COMMON(cqc, qp->scqe.dma + qm->sqe_size * QM_Q_DEPTH);
+ if (ver == QM_HW_V1) {
+ cqc->dw3 = (0 << QM_CQ_HOP_NUM_SHIFT) |
+ (0 << QM_CQ_PAGE_SIZE_SHIFT) |
+ (0 << QM_CQ_BUF_SIZE_SHIFT) |
+ (4 << QM_CQ_SQE_SIZE_SHIFT);
+ cqc->w8 = QM_Q_DEPTH - 1;
+ } else if (ver == QM_HW_V2) {
+ cqc->pasid = pasid;
+ cqc->dw3 = (QM_Q_DEPTH - 1) |
+ (4 << QM_CQ_SQE_SIZE_SHIFT);
+ cqc->w8 = 0; /* rand_qc */
+ }
+ cqc->dw6 = 1 << QM_CQ_PHASE_SHIFT | 1 << QM_CQ_FLAG_SHIFT;
+
+ ret = qm_mb(qm, QM_MB_CMD_CQC, qp->cqc.dma, qp_id, 0, 0);
+ if (ret)
+ return ret;
+
+ dev_dbg(dev, "QM qn=%u, sq_va=%p, sq_dma=%pad, sq_size=%lx, cq_va=%p, cq_dma=%pad, cq_size=%lx\n",
+ qp_id, qp->sqc.addr, &qp->sqc.dma, qm->sqe_size * QM_Q_DEPTH,
+ qp->cqc.addr, &qp->cqc.dma, sizeof(struct qm_cqe) * QM_Q_DEPTH);
+
+ return qp_id;
+}
+
+static struct hisi_qm *file_to_qm(struct debugfs_file *file)
+{
+ struct qm_debug *debug = file->debug;
+
+ return container_of(debug, struct hisi_qm, debug);
+}
+
+static u32 current_q_read(struct debugfs_file *file)
+{
+ struct hisi_qm *qm = file_to_qm(file);
+
+ return readl(qm->io_base + QM_DFX_SQE_CNT_VF_SQN);
+}
+
+static int current_q_write(struct debugfs_file *file, u32 val)
+{
+ struct hisi_qm *qm = file_to_qm(file);
+
+ if (val >= qm->qp_num)
+ return -EINVAL;
+
+ writel(val, qm->io_base + QM_DFX_SQE_CNT_VF_SQN);
+ writel(val, qm->io_base + QM_DFX_CQE_CNT_VF_CQN);
+
+ return 0;
+}
+
+static u32 clear_enable_read(struct debugfs_file *file)
+{
+ struct hisi_qm *qm = file_to_qm(file);
+
+ return readl(qm->io_base + QM_DFX_CNT_CLR_CE);
+}
+
+/* rd_clr_ctrl 1 enable read clear, otherwise 0 disable it */
+static int clear_enable_write(struct debugfs_file *file, u32 rd_clr_ctrl)
+{
+ struct hisi_qm *qm = file_to_qm(file);
+
+ if (rd_clr_ctrl > 1)
+ return -EINVAL;
+
+ writel(rd_clr_ctrl, qm->io_base + QM_DFX_CNT_CLR_CE);
+
+ return 0;
+}
+
+static ssize_t qm_debug_read(struct file *filp, char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct debugfs_file *file = filp->private_data;
+ enum qm_debug_file index = file->index;
+ char tbuf[20];
+ u32 val;
+ int ret;
+
+ mutex_lock(&file->lock);
+ switch (index) {
+ case CURRENT_Q:
+ val = current_q_read(file);
+ break;
+ case CLEAR_ENABLE:
+ val = clear_enable_read(file);
+ break;
+ default:
+ mutex_unlock(&file->lock);
+ return -EINVAL;
+ }
+ mutex_unlock(&file->lock);
+ ret = sprintf(tbuf, "%u\n", val);
+ return simple_read_from_buffer(buf, count, pos, tbuf, ret);
+}
+
+static ssize_t qm_debug_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct debugfs_file *file = filp->private_data;
+ enum qm_debug_file index = file->index;
+ unsigned long val;
+ char tbuf[20];
+ int len, ret;
+
+ if (*pos != 0)
+ return 0;
+
+ if (count >= 20)
+ return -ENOSPC;
+
+ len = simple_write_to_buffer(tbuf, 20 - 1, pos, buf, count);
+ if (len < 0)
+ return len;
+
+ tbuf[len] = '\0';
+ if (kstrtoul(tbuf, 0, &val))
+ return -EFAULT;
+
+ mutex_lock(&file->lock);
+ switch (index) {
+ case CURRENT_Q:
+ ret = current_q_write(file, val);
+ if (ret)
+ goto err_input;
+ break;
+ case CLEAR_ENABLE:
+ ret = clear_enable_write(file, val);
+ if (ret)
+ goto err_input;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err_input;
+ }
+ mutex_unlock(&file->lock);
+
+ return count;
+
+err_input:
+ mutex_unlock(&file->lock);
+ return ret;
+}
+
+static const struct file_operations qm_debug_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .read = qm_debug_read,
+ .write = qm_debug_write,
+};
+
+struct qm_dfx_registers {
+ char *reg_name;
+ u64 reg_offset;
+};
+
+static struct qm_dfx_registers qm_dfx_regs[] = {
+ {"QM_DFX_FUNS_ACTIVE_ST ", 0x200ull},
+ {"QM_ECC_1BIT_CNT ", 0x104000ull},
+ {"QM_ECC_1BIT_INF ", 0x104004ull},
+ {"QM_ECC_MBIT_CNT ", 0x104008ull},
+ {"QM_ECC_MBIT_INF ", 0x10400cull},
+ {"QM_DFX_MB_CNT ", 0x104018ull},
+ {"QM_DFX_DB_CNT ", 0x104028ull},
+ {"QM_DFX_SQE_CNT ", 0x104038ull},
+ {"QM_DFX_CQE_CNT ", 0x104048ull},
+ {"QM_DFX_SEND_SQE_TO_ACC_CNT ", 0x104050ull},
+ {"QM_DFX_WB_SQE_FROM_ACC_CNT ", 0x104058ull},
+ {"QM_DFX_ACC_FINISH_CNT ", 0x104060ull},
+ {"QM_DFX_ACC_RDY_VLD0 ", 0x1040a0ull},
+ {"QM_DFX_ACC_RDY_VLD1 ", 0x1040a4ull},
+ {"QM_DFX_AXI_RDY_VLD ", 0x1040a8ull},
+ {"QM_DFX_CQE_ERR_CNT ", 0x1040b4ull},
+ {"QM_DFX_FF_ST0 ", 0x1040c8ull},
+ {"QM_DFX_FF_ST1 ", 0x1040ccull},
+ {"QM_DFX_FF_ST2 ", 0x1040d0ull},
+ {"QM_DFX_FF_ST3 ", 0x1040d4ull},
+ {"QM_DFX_FF_ST4 ", 0x1040d8ull},
+ {"QM_DFX_FF_ST5 ", 0x1040dcull},
+ {"QM_DFX_FF_ST6 ", 0x1040e0ull},
+ {"QM_IN_IDLE_ST ", 0x1040e4ull},
+ { NULL, 0}
+};
+
+static struct qm_dfx_registers qm_vf_dfx_regs[] = {
+ {"QM_DFX_FUNS_ACTIVE_ST ", 0x200ull},
+ { NULL, 0}
+};
+
+static int qm_regs_show(struct seq_file *s, void *unused)
+{
+ struct hisi_qm *qm = s->private;
+ struct qm_dfx_registers *regs;
+ u32 val;
+
+ if (qm->fun_type == QM_HW_PF)
+ regs = qm_dfx_regs;
+ else
+ regs = qm_vf_dfx_regs;
+
+ while (regs->reg_name) {
+ val = readl(qm->io_base + regs->reg_offset);
+ seq_printf(s, "%s: %16x\n", regs->reg_name, val);
+ regs++;
+ }
+
+ return 0;
+}
+
+static int qm_regs_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, qm_regs_show, inode->i_private);
+}
+
+static const struct file_operations qm_regs_fops = {
+ .owner = THIS_MODULE,
+ .open = qm_regs_open,
+ .read = seq_read,
+};
+
+static int qm_create_debugfs_file(struct hisi_qm *qm, enum qm_debug_file index)
+{
+ struct dentry *qm_d = qm->debug.qm_d, *tmp;
+ struct debugfs_file *file = qm->debug.files + index;
+
+ tmp = debugfs_create_file(qm_debug_file_name[index], 0600, qm_d, file,
+ &qm_debug_fops);
+ if (!tmp)
+ return -ENOENT;
+
+ file->index = index;
+ mutex_init(&file->lock);
+ file->debug = &qm->debug;
+
+ return 0;
+}
+
+static void qm_hw_error_init_v1(struct hisi_qm *qm, u32 ce, u32 nfe, u32 fe,
+ u32 msi)
+{
+ dev_info(&qm->pdev->dev,
+ "QM v%d does not support hw error handle\n", qm->ver);
+
+ writel(0x1fff, qm->io_base + QM_ABNORMAL_INT_MASK);
+}
+
+static void qm_hw_error_init_v2(struct hisi_qm *qm, u32 ce, u32 nfe, u32 fe,
+ u32 msi)
+{
+ u32 irq_enable = ce | nfe | fe | msi;
+ u32 irq_unmask = ~irq_enable;
+
+ qm->error_mask = ce | nfe | fe;
+ qm->msi_mask = msi;
+
+ /* configure error type */
+ writel(ce, qm->io_base + QM_RAS_CE_ENABLE);
+ writel(0x1, qm->io_base + QM_RAS_CE_THRESHOLD);
+ writel(nfe, qm->io_base + QM_RAS_NFE_ENABLE);
+ writel(fe, qm->io_base + QM_RAS_FE_ENABLE);
+
+ /* use RAS irq default, so only set QM_RAS_MSI_INT_SEL for MSI */
+ writel(msi, qm->io_base + QM_RAS_MSI_INT_SEL);
+
+ irq_unmask &= readl(qm->io_base + QM_ABNORMAL_INT_MASK);
+ writel(irq_unmask, qm->io_base + QM_ABNORMAL_INT_MASK);
+}
+
+static void qm_log_hw_error(struct hisi_qm *qm, u32 error_status)
+{
+ const struct hisi_qm_hw_error *err = qm_hw_error;
+ struct device *dev = &qm->pdev->dev;
+ u32 reg_val, type, vf_num;
+
+ while (err->msg) {
+ if (err->int_msk & error_status)
+ dev_warn(dev, "%s [error status=0x%x] found\n",
+ err->msg, err->int_msk);
+
+ if (error_status & QM_DB_TIMEOUT) {
+ reg_val = readl(qm->io_base + QM_ABNORMAL_INF01);
+ type = (reg_val & QM_DB_TIMEOUT_TYPE) >> 6;
+ vf_num = reg_val & QM_DB_TIMEOUT_VF;
+ dev_warn(dev, "qm %s doorbell timeout in function %u\n",
+ qm_db_timeout[type], vf_num);
+ }
+
+ if (error_status & QM_OF_FIFO_OF) {
+ reg_val = readl(qm->io_base + QM_ABNORMAL_INF00);
+ type = (reg_val & QM_FIFO_OVERFLOW_TYPE) >> 6;
+ vf_num = reg_val & QM_FIFO_OVERFLOW_VF;
+
+ if (type < ARRAY_SIZE(qm_fifo_overflow))
+ dev_warn(dev, "qm %s fifo overflow in function %u\n",
+ qm_fifo_overflow[type], vf_num);
+ else
+ dev_err(dev, "unknown error type\n");
+ }
+
+ err++;
+ }
+}
+
+static pci_ers_result_t qm_hw_error_handle_v2(struct hisi_qm *qm)
+{
+ u32 error_status, tmp;
+
+ /* read err sts */
+ tmp = readl(qm->io_base + QM_ABNORMAL_INT_STATUS);
+ error_status = qm->error_mask & tmp;
+
+ if (error_status) {
+ qm_log_hw_error(qm, error_status);
+
+ /* clear err sts */
+ writel(error_status, qm->io_base + QM_ABNORMAL_INT_SOURCE);
+
+ return PCI_ERS_RESULT_NEED_RESET;
+ }
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+static const struct hisi_qm_hw_ops qm_hw_ops_v1 = {
+ .set_vft = qm_set_sqc_cqc_vft,
+ .qm_start_qp = qm_start_qp,
+ .qm_db = qm_db_v1,
+ .get_irq_num = qm_get_irq_num_v1,
+ .hw_error_init = qm_hw_error_init_v1,
+};
+
+static const struct hisi_qm_hw_ops qm_hw_ops_v2 = {
+ .set_vft = qm_set_sqc_cqc_vft,
+ .get_vft = qm_get_vft_v2,
+ .qm_start_qp = qm_start_qp,
+ .qm_db = qm_db_v2,
+ .get_irq_num = qm_get_irq_num_v2,
+ .hw_error_init = qm_hw_error_init_v2,
+ .hw_error_handle = qm_hw_error_handle_v2,
+};
+
+static void *qm_get_avail_sqe(struct hisi_qp *qp)
+{
+ struct hisi_qp_status *qp_status = &qp->qp_status;
+ void *sq_base = qp->scqe.addr;
+ u16 sq_tail = qp_status->sq_tail;
+
+ if (unlikely(test_bit(QP_FULL, &qp->qp_status.flags)))
+ return NULL;
+
+ return sq_base + sq_tail * qp->qm->sqe_size;
+}
+
+/**
+ * hisi_qm_create_qp() - Create a queue pair from qm.
+ * @qm: The qm we create a qp from.
+ * @alg_type: Accelerator specific algorithm type in sqc.
+ *
+ * return created qp, -EBUSY if all qps in qm allocated, -ENOMEM if allocating
+ * qp memory fails.
+ */
+struct hisi_qp *hisi_qm_create_qp(struct hisi_qm *qm, u8 alg_type)
+{
+ struct hisi_qp *qp;
+ struct hisi_qp *ret;
+ int qp_id, r_qp_mem;
+
+ qp = kzalloc(sizeof(*qp), GFP_KERNEL);
+ if (!qp)
+ return ERR_PTR(-ENOMEM);
+
+ write_lock(&qm->qps_lock);
+
+ qp_id = find_first_zero_bit(qm->qp_bitmap, qm->qp_num);
+ if (qp_id >= qm->qp_num) {
+ write_unlock(&qm->qps_lock);
+ dev_info(&qm->pdev->dev, "QM all queues are busy!\n");
+ ret = ERR_PTR(-EBUSY);
+ goto err_free_qp;
+ }
+ set_bit(qp_id, qm->qp_bitmap);
+ qm->qp_array[qp_id] = qp;
+
+ write_unlock(&qm->qps_lock);
+
+ qp->qm = qm;
+ r_qp_mem = qm_init_qp_mem(qp);
+ if (r_qp_mem) {
+ ret = ERR_PTR(r_qp_mem);
+ goto err_clear_bit;
+ }
+
+ qp->qp_id = qp_id;
+ qp->alg_type = alg_type;
+ qm_init_qp_status(qp);
+ qm_init_qp_sqc_cqc_mem(qp);
+ init_completion(&qp->completion);
+
+ return qp;
+
+err_clear_bit:
+ write_lock(&qm->qps_lock);
+ qm->qp_array[qp_id] = NULL;
+ clear_bit(qp_id, qm->qp_bitmap);
+ write_unlock(&qm->qps_lock);
+err_free_qp:
+ kfree(qp);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_create_qp);
+
+/**
+ * hisi_qm_release_qp() - Release a qp back to its qm.
+ * @qp: The qp we want to release.
+ *
+ * This function releases the resource of a qp.
+ */
+void hisi_qm_release_qp(struct hisi_qp *qp)
+{
+ struct hisi_qm *qm = qp->qm;
+
+ qm_uninit_qp_sqc_cqc_mem(qp);
+ qm_uninit_qp_mem(qp);
+
+ write_lock(&qm->qps_lock);
+ qm->qp_array[qp->qp_id] = NULL;
+ clear_bit(qp->qp_id, qm->qp_bitmap);
+ write_unlock(&qm->qps_lock);
+
+ kfree(qp);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_release_qp);
+
+/**
+ * hisi_qm_start_qp() - Start a qp into running.
+ * @qp: The qp we want to start to run.
+ * @arg: Accelerator specific argument.
+ *
+ * After this function, qp can receive request from user. Return qp_id if
+ * successful, Return -EBUSY if failed.
+ */
+int hisi_qm_start_qp(struct hisi_qp *qp, unsigned long arg)
+{
+ struct hisi_qm *qm = qp->qm;
+
+ return qm->ops->qm_start_qp(qp, arg);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_start_qp);
+
+/**
+ * hisi_qm_stop_qp() - Stop a qp in qm.
+ * @qp: The qp we want to stop.
+ *
+ * This function is reverse of hisi_qm_start_qp. Return 0 if successful,
+ * return -EBUSY if stopping failed as there are tasks remaining in hardware.
+ */
+int hisi_qm_stop_qp(struct hisi_qp *qp)
+{
+ struct device *dev = &qp->qm->pdev->dev;
+ int i = 0;
+
+ while (atomic_read(&qp->qp_status.used)) {
+ i++;
+ msleep(5);
+ if (i == 10) {
+ dev_err(dev, "Hardware unknown error!\n");
+ return -EBUSY;
+ }
+ }
+
+ if (test_and_set_bit(QP_STOP, &qp->qp_status.flags)) {
+ dev_warn(dev, "Failed to stop qp%u!", qp->qp_id);
+ return -EPERM;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_stop_qp);
+
+/**
+ * hisi_qp_send() - Queue up a task in the hardware queue.
+ * @qp: The qp in which to put the message.
+ * @msg: The message.
+ *
+ * This function will return -EBUSY if qp is currently full, and -EAGAIN
+ * if qp related qm is resetting.
+ */
+int hisi_qp_send(struct hisi_qp *qp, void *msg)
+{
+ struct hisi_qp_status *qp_status = &qp->qp_status;
+ u16 sq_tail = qp_status->sq_tail;
+ u16 sq_tail_next = (sq_tail + 1) % QM_Q_DEPTH;
+ void *sqe = qm_get_avail_sqe(qp);
+
+ if (unlikely(test_bit(QP_STOP, &qp->qp_status.flags) ||
+ test_bit(QM_RESET, &qp->qm->flags))) {
+ dev_info(&qp->qm->pdev->dev, "QM resetting...\n");
+ return -EAGAIN;
+ }
+
+ if (!sqe)
+ return -EBUSY;
+
+ memcpy(sqe, msg, qp->qm->sqe_size);
+
+ qm_db(qp->qm, qp->qp_id, QM_DOORBELL_CMD_SQ, sq_tail_next, 0);
+ atomic_inc(&qp->qp_status.used);
+
+ qp_status->sq_tail = sq_tail_next;
+ if (qp_status->sq_tail == qp_status->sq_head)
+ set_bit(QP_FULL, &qp->qp_status.flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qp_send);
+
+/**
+ * hisi_qp_wait() - Wait a task in qp to finish.
+ * @qp: The qp which will wait.
+ *
+ * This function will block and wait task finish in qp, or return -ETIME for
+ * timeout.
+ *
+ * This function should be called after hisi_qp_send.
+ */
+int hisi_qp_wait(struct hisi_qp *qp)
+{
+ if (wait_for_completion_timeout(&qp->completion,
+ msecs_to_jiffies(10)) == 0) {
+ atomic_dec(&qp->qp_status.used);
+ dev_err(&qp->qm->pdev->dev, "QM task timeout\n");
+ return -ETIME;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qp_wait);
+
+/**
+ * hisi_qm_mem_init() - Allocate qm related memory.
+ * @qm: The qm which we allocate memory for.
+ *
+ * Return 0 if successful, return -ENOMEM if allocating failed.
+ */
+int hisi_qm_mem_init(struct hisi_qm *qm)
+{
+ struct device *dev = &qm->pdev->dev;
+ int ret;
+
+ ret = qm_init_q_buffer(dev, sizeof(struct qm_eqc), &qm->eqc);
+ if (ret)
+ return ret;
+
+ ret = qm_init_q_buffer(dev, sizeof(struct qm_eqe) * QM_Q_DEPTH,
+ &qm->eqe);
+ if (ret)
+ goto err_free_eqc;
+
+ ret = qm_init_q_buffer(dev, sizeof(struct qm_aeqc), &qm->aeqc);
+ if (ret)
+ goto err_free_eqe;
+
+ ret = qm_init_q_buffer(dev, sizeof(struct qm_aeqe) * QM_Q_DEPTH,
+ &qm->aeqe);
+ if (ret)
+ goto err_free_aeqc;
+
+ qm->qp_bitmap = bitmap_zalloc(qm->qp_num, GFP_KERNEL);
+ if (!qm->qp_bitmap) {
+ ret = -ENOMEM;
+ goto err_free_aeqe;
+ }
+
+ qm->qp_array = kcalloc(qm->qp_num, sizeof(struct hisi_qp *),
+ GFP_KERNEL);
+ if (!qm->qp_array) {
+ ret = -ENOMEM;
+ goto err_free_bitmap;
+ }
+
+ ret = qm_init_q_buffer(dev, sizeof(struct qm_sqc) * qm->qp_num,
+ &qm->sqc);
+ if (ret)
+ goto err_free_qp_array;
+
+ ret = qm_init_q_buffer(dev, sizeof(struct qm_cqc) * qm->qp_num,
+ &qm->cqc);
+ if (ret)
+ goto err_free_sqc;
+
+ return 0;
+
+err_free_sqc:
+ qm_uninit_q_buffer(dev, &qm->sqc);
+err_free_qp_array:
+ kfree(qm->qp_array);
+err_free_bitmap:
+ bitmap_free(qm->qp_bitmap);
+err_free_aeqe:
+ qm_uninit_q_buffer(dev, &qm->aeqe);
+err_free_aeqc:
+ qm_uninit_q_buffer(dev, &qm->aeqc);
+err_free_eqe:
+ qm_uninit_q_buffer(dev, &qm->eqe);
+err_free_eqc:
+ qm_uninit_q_buffer(dev, &qm->eqc);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_mem_init);
+
+/**
+ * hisi_qm_mem_uninit() - Uninit qm related memory.
+ * @qm: The qm which we uninit memory for.
+ *
+ * This function is reverse of hisi_qm_mem_init.
+ */
+void hisi_qm_mem_uninit(struct hisi_qm *qm)
+{
+ struct device *dev = &qm->pdev->dev;
+
+ qm_uninit_q_buffer(dev, &qm->cqc);
+ qm_uninit_q_buffer(dev, &qm->sqc);
+ kfree(qm->qp_array);
+ bitmap_free(qm->qp_bitmap);
+ qm_uninit_q_buffer(dev, &qm->aeqe);
+ qm_uninit_q_buffer(dev, &qm->aeqc);
+ qm_uninit_q_buffer(dev, &qm->eqe);
+ qm_uninit_q_buffer(dev, &qm->eqc);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_mem_uninit);
+
+/**
+ * hisi_qm_init() - Initialize configures about qm.
+ * @qm: The qm needed init.
+ *
+ * This function init qm, then we can call hisi_qm_mem_init and hisi_qm_start
+ * to put qm into work.
+ */
+int hisi_qm_init(struct hisi_qm *qm)
+{
+ struct pci_dev *pdev = qm->pdev;
+ struct device *dev = &pdev->dev;
+ unsigned int num_vec = 0;
+ int ret;
+
+ switch (qm->ver) {
+ case QM_HW_V1:
+ qm->ops = &qm_hw_ops_v1;
+ break;
+ case QM_HW_V2:
+ qm->ops = &qm_hw_ops_v2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = pci_enable_device_mem(pdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to enable device mem!\n");
+ return ret;
+ }
+
+ ret = pci_request_mem_regions(pdev, qm->dev_name);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to request mem regions!\n");
+ goto err_disable_pcidev;
+ }
+
+ qm->io_base = ioremap(pci_resource_start(pdev, 2),
+ pci_resource_len(qm->pdev, 2));
+ if (!qm->io_base) {
+ ret = -EIO;
+ goto err_release_mem_regions;
+ }
+
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ if (ret < 0)
+ goto err_iounmap;
+ pci_set_master(pdev);
+
+ num_vec = qm->ops->get_irq_num(qm);
+ ret = pci_alloc_irq_vectors(pdev, num_vec, num_vec, PCI_IRQ_MSI);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable MSI vectors!\n");
+ goto err_iounmap;
+ }
+
+ ret = qm_irq_register(qm);
+ if (ret)
+ goto err_free_irq_vectors;
+
+ qm->eq_head = 0;
+ mutex_init(&qm->mailbox_lock);
+ rwlock_init(&qm->qps_lock);
+
+ return 0;
+
+err_free_irq_vectors:
+ pci_free_irq_vectors(pdev);
+err_iounmap:
+ iounmap(qm->io_base);
+err_release_mem_regions:
+ pci_release_mem_regions(pdev);
+err_disable_pcidev:
+ pci_disable_device(pdev);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_init);
+
+/**
+ * hisi_qm_uninit() - Uninitialize qm.
+ * @qm: The qm needed uninit.
+ *
+ * This function uninits qm related device resources.
+ */
+void hisi_qm_uninit(struct hisi_qm *qm)
+{
+ struct pci_dev *pdev = qm->pdev;
+
+ qm_irq_unregister(qm);
+ pci_free_irq_vectors(pdev);
+ iounmap(qm->io_base);
+ pci_release_mem_regions(pdev);
+ pci_disable_device(pdev);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_uninit);
+
+/**
+ * hisi_qm_start() - Let qm start to work.
+ * @qm: The qm which will be started.
+ *
+ * This function starts a qm, then we can allocate qp from this qm.
+ */
+int hisi_qm_start(struct hisi_qm *qm)
+{
+ struct pci_dev *pdev = qm->pdev;
+ struct device *dev = &pdev->dev;
+ struct qm_eqc *eqc;
+ struct qm_aeqc *aeqc;
+ int ret;
+
+ if (qm->qp_num == 0) {
+ dev_info(dev, "Allocated zero qp for this qm!\n");
+ return 0;
+ }
+
+ if (qm->fun_type == QM_HW_PF) {
+ ret = qm->ops->set_vft(qm, 0, qm->qp_base, qm->qp_num);
+ if (ret)
+ return ret;
+ }
+
+ eqc = qm->eqc.addr;
+ eqc->base_l = lower_32_bits(qm->eqe.dma);
+ eqc->base_h = upper_32_bits(qm->eqe.dma);
+ eqc->dw3 = 2 << QM_EQC_EQE_SHIFT;
+ eqc->dw6 = (QM_Q_DEPTH - 1) | (1 << QM_EQC_PHASE_SHIFT);
+ ret = qm_mb(qm, QM_MB_CMD_EQC, qm->eqc.dma, 0, 0, 0);
+ if (ret)
+ return ret;
+
+ aeqc = qm->aeqc.addr;
+ aeqc->base_l = lower_32_bits(qm->aeqe.dma);
+ aeqc->base_h = upper_32_bits(qm->aeqe.dma);
+ aeqc->dw3 = 2 << QM_EQC_EQE_SHIFT;
+ aeqc->dw6 = (QM_Q_DEPTH - 1) | (1 << QM_EQC_PHASE_SHIFT);
+ ret = qm_mb(qm, QM_MB_CMD_AEQC, qm->aeqc.dma, 0, 0, 0);
+ if (ret)
+ return ret;
+
+ ret = qm_mb(qm, QM_MB_CMD_SQC_BT, qm->sqc.dma, 0, 0, 0);
+ if (ret)
+ return ret;
+
+ ret = qm_mb(qm, QM_MB_CMD_CQC_BT, qm->cqc.dma, 0, 0, 0);
+ if (ret)
+ return ret;
+
+ /* Unmask eq irq */
+ writel(0x0, qm->io_base + QM_VF_EQ_INT_MASK);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_start);
+
+/**
+ * hisi_qm_stop() - Stop a qm.
+ * @qm: The qm which will be stopped.
+ *
+ * This function stops qm and its qps, then qm can not accept request.
+ * Related resources are not released at this state, we can use hisi_qm_start
+ * to let qm start again.
+ */
+int hisi_qm_stop(struct hisi_qm *qm)
+{
+ struct device *dev = &qm->pdev->dev;
+ struct hisi_qp *qp;
+ int ret, i;
+
+ /* Mask eq irq */
+ writel(0x1, qm->io_base + QM_VF_EQ_INT_MASK);
+
+ /* Stop all qps belong to this qm */
+ for (i = 0; i < qm->qp_num; i++) {
+ qp = qm->qp_array[i];
+ if (qp) {
+ ret = hisi_qm_stop_qp(qp);
+ if (ret < 0) {
+ dev_err(dev, "Failed to stop qp%d!\n", i);
+ return -EBUSY;
+ }
+ }
+ }
+
+ if (qm->fun_type == QM_HW_PF) {
+ ret = qm->ops->set_vft(qm, 0, 0, 0);
+ if (ret) {
+ dev_err(dev, "Failed to set vft!\n");
+ return -EBUSY;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_stop);
+
+/**
+ * hisi_qm_mem_start() - Start qm's internal memory.
+ * @qm: The qm which memory will be started.
+ *
+ * Put qm memory into active, so that other configs become available
+ */
+int hisi_qm_mem_start(struct hisi_qm *qm)
+{
+ u32 val;
+
+ writel(0x1, qm->io_base + QM_MEM_START_INIT);
+ return readl_relaxed_poll_timeout(qm->io_base + QM_MEM_INIT_DONE, val,
+ val & BIT(0), 10, 1000);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_mem_start);
+
+/**
+ * hisi_qm_get_vft() - Get vft from a qm.
+ * @qm: The qm we want to get its vft.
+ * @base: The base number of queue in vft.
+ * @number: The number of queues in vft.
+ *
+ * We can allocate multiple queues to a qm by configuring virtual function
+ * table. We get related configures by this function. Normally, we call this
+ * function in VF driver to get the queue information.
+ *
+ * qm hw v1 does not support this interface.
+ */
+int hisi_qm_get_vft(struct hisi_qm *qm, u32 *base, u32 *number)
+{
+ if (!base || !number)
+ return -EINVAL;
+
+ if (!qm->ops->get_vft) {
+ dev_err(&qm->pdev->dev, "Don't support vft read!\n");
+ return -EINVAL;
+ }
+
+ return qm->ops->get_vft(qm, base, number);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_get_vft);
+
+/**
+ * hisi_qm_set_vft() - Set "virtual function table" for a qm.
+ * @fun_num: Number of operated function.
+ * @qm: The qm in which to set vft, alway in a PF.
+ * @base: The base number of queue in vft.
+ * @number: The number of queues in vft.
+ *
+ * This function is alway called in PF driver, it is used to assign queues
+ * among PF and VFs.
+ *
+ * Assign queues A~B to PF: hisi_qm_set_vft(qm, 0, A, B - A + 1)
+ * Assign queues A~B to VF: hisi_qm_set_vft(qm, 2, A, B - A + 1)
+ * (VF function number 0x2)
+ */
+int hisi_qm_set_vft(struct hisi_qm *qm, u32 fun_num, u32 base,
+ u32 number)
+{
+ return qm->ops->set_vft(qm, fun_num, base, number);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_set_vft);
+
+/**
+ * hisi_qm_debug_init() - Initialize qm related debugfs files.
+ * @qm: The qm for which we want to add debugfs files.
+ *
+ * Create qm related debugfs files.
+ */
+int hisi_qm_debug_init(struct hisi_qm *qm)
+{
+ struct dentry *qm_d, *qm_regs;
+ int i, ret;
+
+ qm_d = debugfs_create_dir("qm", qm->debug.debug_root);
+ if (!qm_d)
+ return -ENOENT;
+ qm->debug.qm_d = qm_d;
+
+ /* only show this in PF */
+ if (qm->fun_type == QM_HW_PF)
+ for (i = CURRENT_Q; i < DEBUG_FILE_NUM; i++)
+ if (qm_create_debugfs_file(qm, i)) {
+ ret = -ENOENT;
+ goto failed_to_create;
+ }
+
+ qm_regs = debugfs_create_file("qm_regs", 0444, qm->debug.qm_d, qm,
+ &qm_regs_fops);
+ if (!qm_regs) {
+ ret = -ENOENT;
+ goto failed_to_create;
+ }
+
+ return 0;
+
+failed_to_create:
+ debugfs_remove_recursive(qm_d);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_debug_init);
+
+/**
+ * hisi_qm_hw_error_init() - Configure qm hardware error report method.
+ * @qm: The qm which we want to configure.
+ * @ce: Correctable error configure.
+ * @nfe: Non-fatal error configure.
+ * @fe: Fatal error configure.
+ * @msi: Error reported by message signal interrupt.
+ *
+ * Hardware errors of qm can be reported either by RAS interrupts which will
+ * be handled by UEFI and then PCIe AER or by device MSI. User can configure
+ * each error to use either of above two methods. For RAS interrupts, we can
+ * configure an error as one of correctable error, non-fatal error or
+ * fatal error.
+ *
+ * Bits indicating errors can be configured to ce, nfe, fe and msi to enable
+ * related report methods. Error report will be masked if related error bit
+ * does not configure.
+ */
+void hisi_qm_hw_error_init(struct hisi_qm *qm, u32 ce, u32 nfe, u32 fe,
+ u32 msi)
+{
+ if (!qm->ops->hw_error_init) {
+ dev_err(&qm->pdev->dev, "QM version %d doesn't support hw error handling!\n",
+ qm->ver);
+ return;
+ }
+
+ return qm->ops->hw_error_init(qm, ce, nfe, fe, msi);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_hw_error_init);
+
+/**
+ * hisi_qm_hw_error_handle() - Handle qm non-fatal hardware errors.
+ * @qm: The qm which has non-fatal hardware errors.
+ *
+ * Accelerators use this function to handle qm non-fatal hardware errors.
+ */
+int hisi_qm_hw_error_handle(struct hisi_qm *qm)
+{
+ if (!qm->ops->hw_error_handle) {
+ dev_err(&qm->pdev->dev, "QM version %d doesn't support hw error report!\n",
+ qm->ver);
+ return PCI_ERS_RESULT_NONE;
+ }
+
+ return qm->ops->hw_error_handle(qm);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_hw_error_handle);
+
+/**
+ * hisi_qm_clear_queues() - Clear memory of queues in a qm.
+ * @qm: The qm which memory needs clear.
+ *
+ * This function clears all queues memory in a qm. Reset of accelerator can
+ * use this to clear queues.
+ */
+void hisi_qm_clear_queues(struct hisi_qm *qm)
+{
+ struct hisi_qp **qp = qm->qp_array;
+ struct hisi_qp *tmp;
+ int i;
+
+ for (i = 0; i < qm->qp_num; i++, qp++) {
+ tmp = *qp;
+ if (!tmp)
+ continue;
+
+ memset(tmp->scqe.addr, 0, tmp->scqe.size);
+ memset(&tmp->qp_status, 0, sizeof(tmp->qp_status));
+ }
+ memset(qm->eqe.addr, 0, qm->eqe.size);
+ memset(qm->aeqe.addr, 0, qm->aeqe.size);
+
+ qm->flags = 0;
+ qm->eq_head = 0;
+ qm->aeq_head = 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qm_clear_queues);
+
+/**
+ * hisi_qm_get_hw_version() - Get hardware version of a qm.
+ * @pdev: The device which hardware version we want to get.
+ *
+ * This function gets the hardware version of a qm. Return QM_HW_UNKNOWN
+ * if the hardware version is not supported.
+ */
+enum qm_hw_ver hisi_qm_get_hw_version(struct pci_dev *pdev)
+{
+ switch (pdev->revision) {
+ case 0x20:
+ return QM_HW_V1;
+ case 0x21:
+ return QM_HW_V2;
+ default:
+ return QM_HW_UNKNOWN;
+ }
+}
+EXPORT_SYMBOL_GPL(hisi_qm_get_hw_version);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Zhou Wang <wangzhou1@hisilicon.com>");
+MODULE_DESCRIPTION("HiSilicon Accelerator queue manager driver");
new file mode 100644
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 Hisilicon Limited. */
+#ifndef HISI_ACC_QM_H
+#define HISI_ACC_QM_H
+
+#include <linux/dmapool.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+
+/* default queue depth for sq/cq/eq */
+#define QM_Q_DEPTH 1024UL
+
+/* qm user domain */
+#define QM_ARUSER_M_CFG_1 0x100088
+#define QM_ARUSER_M_CFG_ENABLE 0x100090
+#define QM_AWUSER_M_CFG_1 0x100098
+#define QM_AWUSER_M_CFG_ENABLE 0x1000a0
+#define QM_WUSER_M_CFG_ENABLE 0x1000a8
+
+/* qm cache */
+#define QM_CACHE_CTL 0x100050
+#define QM_AXI_M_CFG 0x1000ac
+#define QM_AXI_M_CFG_ENABLE 0x1000b0
+#define QM_PEH_AXUSER_CFG 0x1000cc
+#define QM_PEH_AXUSER_CFG_ENABLE 0x1000d0
+
+#define QM_DFX_MB_CNT_VF 0x104010
+#define QM_DFX_DB_CNT_VF 0x104020
+
+#define QM_AXI_RRESP BIT(0)
+#define QM_AXI_BRESP BIT(1)
+#define QM_ECC_MBIT BIT(2)
+#define QM_ECC_1BIT BIT(3)
+#define QM_ACC_GET_TASK_TIMEOUT BIT(4)
+#define QM_ACC_DO_TASK_TIMEOUT BIT(5)
+#define QM_ACC_WB_NOT_READY_TIMEOUT BIT(6)
+#define QM_SQ_CQ_VF_INVALID BIT(7)
+#define QM_CQ_VF_INVALID BIT(8)
+#define QM_SQ_VF_INVALID BIT(9)
+#define QM_DB_TIMEOUT BIT(10)
+#define QM_OF_FIFO_OF BIT(11)
+#define QM_DB_RANDOM_INVALID BIT(12)
+
+#define QM_BASE_NFE (QM_AXI_RRESP | QM_AXI_BRESP | QM_ECC_MBIT | \
+ QM_ACC_GET_TASK_TIMEOUT | QM_ACC_DO_TASK_TIMEOUT | \
+ QM_DB_TIMEOUT | QM_OF_FIFO_OF)
+#define QM_BASE_CE QM_ECC_1BIT
+
+enum qm_state {
+ QM_RESET,
+};
+
+enum qp_state {
+ QP_STOP,
+ QP_FULL,
+};
+
+enum qm_hw_ver {
+ QM_HW_UNKNOWN = -1,
+ QM_HW_V1 = 1,
+ QM_HW_V2,
+};
+
+enum qm_fun_type {
+ QM_HW_PF,
+ QM_HW_VF,
+};
+
+enum qm_debug_file {
+ CURRENT_Q,
+ CLEAR_ENABLE,
+ DEBUG_FILE_NUM,
+};
+
+struct qm_dma_buffer {
+ int size;
+ void *addr;
+ dma_addr_t dma;
+};
+
+struct debugfs_file {
+ enum qm_debug_file index;
+ struct mutex lock;
+ struct qm_debug *debug;
+};
+
+struct qm_debug {
+ struct dentry *debug_root;
+ struct dentry *qm_d;
+ struct debugfs_file files[DEBUG_FILE_NUM];
+};
+
+struct hisi_qm {
+ enum qm_hw_ver ver;
+ enum qm_fun_type fun_type;
+ const char *dev_name;
+ struct pci_dev *pdev;
+ void __iomem *io_base;
+ u32 sqe_size;
+ u32 qp_base;
+ u32 qp_num;
+ unsigned long flags;
+
+ struct qm_dma_buffer sqc, cqc, eqc, eqe, aeqc, aeqe;
+
+ u32 eq_head;
+ u32 aeq_head;
+
+ rwlock_t qps_lock;
+ unsigned long *qp_bitmap;
+ struct hisi_qp **qp_array;
+
+ struct mutex mailbox_lock;
+
+ const struct hisi_qm_hw_ops *ops;
+
+ struct qm_debug debug;
+
+ u32 error_mask;
+ u32 msi_mask;
+};
+
+struct hisi_qp_status {
+ atomic_t used;
+ u16 sq_tail;
+ u16 sq_head;
+ u16 cq_head;
+ bool cqc_phase;
+ unsigned long flags;
+};
+
+struct hisi_qp_ops {
+ int (*fill_sqe)(void *sqe, void *q_parm, void *d_parm);
+};
+
+struct hisi_qp {
+ u32 qp_id;
+ u8 alg_type;
+ u8 req_type;
+
+ struct qm_dma_buffer sqc;
+ struct qm_dma_buffer cqc;
+ struct qm_dma_buffer scqe;
+
+ struct hisi_qp_status qp_status;
+ struct completion completion;
+ struct hisi_qp_ops *hw_ops;
+ void *qp_ctx;
+ void (*req_cb)(struct hisi_qp *qp, void *data);
+
+ struct hisi_qm *qm;
+};
+
+int hisi_qm_init(struct hisi_qm *qm);
+void hisi_qm_uninit(struct hisi_qm *qm);
+int hisi_qm_mem_init(struct hisi_qm *qm);
+void hisi_qm_mem_uninit(struct hisi_qm *qm);
+int hisi_qm_start(struct hisi_qm *qm);
+int hisi_qm_stop(struct hisi_qm *qm);
+int hisi_qm_mem_start(struct hisi_qm *qm);
+struct hisi_qp *hisi_qm_create_qp(struct hisi_qm *qm, u8 alg_type);
+int hisi_qm_start_qp(struct hisi_qp *qp, unsigned long arg);
+int hisi_qm_stop_qp(struct hisi_qp *qp);
+void hisi_qm_release_qp(struct hisi_qp *qp);
+int hisi_qp_send(struct hisi_qp *qp, void *msg);
+int hisi_qp_wait(struct hisi_qp *qp);
+int hisi_qm_get_vft(struct hisi_qm *qm, u32 *base, u32 *number);
+int hisi_qm_set_vft(struct hisi_qm *qm, u32 fun_num, u32 base, u32 number);
+int hisi_qm_debug_init(struct hisi_qm *qm);
+void hisi_qm_hw_error_init(struct hisi_qm *qm, u32 ce, u32 nfe, u32 fe,
+ u32 msi);
+int hisi_qm_hw_error_handle(struct hisi_qm *qm);
+void hisi_qm_clear_queues(struct hisi_qm *qm);
+enum qm_hw_ver hisi_qm_get_hw_version(struct pci_dev *pdev);
+#endif