QM is a general IP used by HiSilicon accelerators. It provides a general
PCIe interface for the CPU and the accelerator to share a group of queues.
A QM integrated in an accelerator provides queue management service.
Queues can be assigned to PF and VFs, and queues can be controlled by
unified mailboxes and doorbells. Specific task request are descripted by
specific description buffer, which will be controlled and pass to related
accelerator IP by QM.
This patch adds a QM driver used by the accelerator driver to access
the QM hardware.
Signed-off-by: Zhou Wang <wangzhou1@xxxxxxxxxxxxx>
Signed-off-by: Kenneth Lee <liguozhu@xxxxxxxxxxxxx>
Signed-off-by: Shiju Jose <shiju.jose@xxxxxxxxxx>
Signed-off-by: Hao Fang <fanghao11@xxxxxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Reviewed-by: John Garry <john.garry@xxxxxxxxxx>
---
drivers/crypto/hisilicon/Kconfig | 4 +
drivers/crypto/hisilicon/Makefile | 1 +
drivers/crypto/hisilicon/qm.c | 1736 +++++++++++++++++++++++++++++++++++++
drivers/crypto/hisilicon/qm.h | 276 ++++++
4 files changed, 2017 insertions(+)
create mode 100644 drivers/crypto/hisilicon/qm.c
create mode 100644 drivers/crypto/hisilicon/qm.h
diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig
index 8ca9c50..993a98d 100644
--- a/drivers/crypto/hisilicon/Kconfig
+++ b/drivers/crypto/hisilicon/Kconfig
@@ -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
diff --git a/drivers/crypto/hisilicon/Makefile b/drivers/crypto/hisilicon/Makefile
index 463f46a..05e9052 100644
--- a/drivers/crypto/hisilicon/Makefile
+++ b/drivers/crypto/hisilicon/Makefile
@@ -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
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
new file mode 100644
index 0000000..3414cc7
--- /dev/null
+++ b/drivers/crypto/hisilicon/qm.c
@@ -0,0 +1,1736 @@
+// 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
+#define QM_IRQ_NUM_V1 1
+#define QM_IRQ_NUM_PF_V2 4
+#define QM_IRQ_NUM_VF_V2 2
+
+/* 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
+
+#define QM_CACHE_WB_START 0x204
+#define QM_CACHE_WB_DONE 0x208
+
+#define QMC_ALIGN(sz) ALIGN(sz, 32)
+
+#define QM_MK_CQC_DW3_V1(hop_num, pg_sz, buf_sz, sqe_sz) \
+ (((hop_num) << QM_CQ_HOP_NUM_SHIFT) | \
+ ((pg_sz) << QM_CQ_PAGE_SIZE_SHIFT) | \
+ ((buf_sz) << QM_CQ_BUF_SIZE_SHIFT) | \
+ ((sqe_sz) << QM_CQ_SQE_SIZE_SHIFT))
+#define QM_MK_CQC_DW3_V2(sqe_sz) \
+ ((QM_Q_DEPTH - 1) | ((sqe_sz) << QM_CQ_SQE_SIZE_SHIFT))
+#define QM_MK_SQC_W13(priority, orders, alg_type) \
+ (((priority) << QM_SQ_PRIORITY_SHIFT) | \
+ ((orders) << QM_SQ_ORDERS_SHIFT) | \
+ (((alg_type) & QM_SQ_TYPE_MASK) << QM_SQ_TYPE_SHIFT))
+#define QM_MK_SQC_DW3_V1(hop_num, pg_sz, buf_sz, sqe_sz) \
+ (((hop_num) << QM_SQ_HOP_NUM_SHIFT) | \
+ ((pg_sz) << QM_SQ_PAGE_SIZE_SHIFT) | \
+ ((buf_sz) << QM_SQ_BUF_SIZE_SHIFT) | \
+ (ilog2(sqe_sz) << QM_SQ_SQE_SIZE_SHIFT))
+#define QM_MK_SQC_DW3_V2(sqe_sz) \
+ ((QM_Q_DEPTH - 1) | (ilog2(sqe_sz) << QM_SQ_SQE_SIZE_SHIFT))
+
+#define INIT_QC_COMMON(qc, base, pasid) do { \
+ (qc)->head = 0; \
+ (qc)->tail = 0; \
+ (qc)->base_l = lower_32_bits(base); \
+ (qc)->base_h = upper_32_bits(base); \
+ (qc)->dw3 = 0; \
+ (qc)->w8 = 0; \
+ (qc)->rsvd0 = 0; \
+ (qc)->pasid = pasid; \
+ (qc)->w11 = 0; \
+ (qc)->rsvd1 = 0; \
+} while (0)
+
+enum vft_type {
+ SQC_VFT = 0,
+ CQC_VFT,
+};
+
+struct hisi_qm_hw_ops {
+ int (*get_vft)(struct hisi_qm *qm, u32 *base, u32 *number);
+ 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;
+
+ 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;
+ u64 dbase;
+ u16 randata = 0;
+
+ 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)randata << 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 int qm_dev_mem_reset(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);
+}
+
+static u32 qm_get_irq_num_v1(struct hisi_qm *qm)
+{
+ return QM_IRQ_NUM_V1;
+}
+
+static u32 qm_get_irq_num_v2(struct hisi_qm *qm)
+{
+ if (qm->fun_type == QM_HW_PF)
+ return QM_IRQ_NUM_PF_V2;
+ else
+ return QM_IRQ_NUM_VF_V2;
+}
+
+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)
+{
+ if (qp->qp_status.cq_head == QM_Q_DEPTH - 1) {
+ qp->cqc->dw6 = qp->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 *cqe = qp->cqe + qp->qp_status.cq_head;
+
+ if (qp->req_cb) {
+ while (QM_CQE_PHASE(cqe) == (qp->cqc->dw6 & 0x1)) {
+ dma_rmb();
+ qp->req_cb(qp, qp->sqe + qm->sqe_size * cqe->sq_head);
+ qm_cq_head_update(qp);
+ cqe = qp->cqe + 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 + qm->eq_head;
+ struct qm_eqc *eqc = qm->eqc;
+ 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;
+ 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 + qm->aeq_head;
+ struct qm_aeqc *aeqc = qm->aeqc;
+ 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 %d\n",
+ type);
+
+ if (qm->aeq_head == QM_Q_DEPTH - 1) {
+ aeqc->dw6 = aeqc->dw6 ^ QM_AEQC_PHASE_BIT;
+ aeqe = qm->aeqe;
+ 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;
+}
+
+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 qm_dev_mem_reset() */
+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 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 = {
+ .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 = {
+ .get_vft = qm_get_vft_v2,
+ .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;
+ u16 sq_tail = qp_status->sq_tail;
+
+ if (unlikely(test_bit(QP_FULL, &qp->qp_status.flags)))
+ return NULL;
+
+ return qp->sqe + 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 device *dev = &qm->pdev->dev;
+ struct hisi_qp *qp;
+ struct hisi_qp *ret;
+ int qp_id;
+
+ 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;
+
+ if (qm->use_dma_api) {
+ qp->qdma.size = qm->sqe_size * QM_Q_DEPTH +
+ sizeof(struct qm_cqe) * QM_Q_DEPTH,
+ qp->qdma.va = dma_alloc_coherent(dev, qp->qdma.size,
+ &qp->qdma.dma, GFP_KERNEL);
+ if (!qp->qdma.va) {
+ ret = ERR_PTR(-ENOMEM);
+ goto err_clear_bit;
+ }
+
+ dev_dbg(dev, "allocate qp dma buf(va=%p, dma=%pad, size=%lx)\n",
+ qp->qdma.va, &qp->qdma.dma, qp->qdma.size);
+ }
+
+ qp->qp_id = qp_id;
+ qp->alg_type = alg_type;
+ qm_init_qp_status(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;
+ struct qm_dma *qdma = &qp->qdma;
+ struct device *dev = &qm->pdev->dev;
+
+ if (qm->use_dma_api && qdma->va)
+ dma_free_coherent(dev, qdma->size, qdma->va, qdma->dma);
+
+ 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;
+ 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;
+ size_t off = 0;
+
+#define QP_INIT_BUF(qp, type, size) do { \
+ (qp)->type = ((qp)->qdma.va + (off)); \
+ (qp)->type##_dma = (qp)->qdma.dma + (off); \
+ off += (size); \
+} while (0)
+
+ if (!qp->qdma.dma) {
+ dev_err(dev, "cannot get qm dma buffer\n");
+ return -EINVAL;
+ }
+
+ /* sq need 128 bytes alignment */
+ if (qp->qdma.dma & 0x7F) {
+ dev_err(dev, "qm sq is not aligned to 128 byte\n");
+ return -EINVAL;
+ }
+
+ WARN_ON(!qm->sqc);
+ WARN_ON(!qm->cqc);
+
+ sqc = qp->sqc = qm->sqc + qp_id;
+ cqc = qp->cqc = qm->cqc + qp_id;
+ qp->sqc_dma = qm->sqc_dma + qp_id * sizeof(struct qm_sqc);
+ qp->cqc_dma = qm->cqc_dma + qp_id * sizeof(struct qm_cqc);
+
+ QP_INIT_BUF(qp, sqe, qm->sqe_size * QM_Q_DEPTH);
+ QP_INIT_BUF(qp, cqe, sizeof(struct qm_cqe) * QM_Q_DEPTH);
+
+ dev_dbg(dev, "init qp buffer(v%d):\n"
+ " sqc (%lx, %lx)\n"
+ " cqc (%lx, %lx)\n"
+ " sqe (%lx, %lx)\n"
+ " cqe (%lx, %lx)\n",
+ ver,
+ (unsigned long)qp->sqc, (unsigned long)qp->sqc_dma,
+ (unsigned long)qp->cqc, (unsigned long)qp->cqc_dma,
+ (unsigned long)qp->sqe, (unsigned long)qp->sqe_dma,
+ (unsigned long)qp->cqe, (unsigned long)qp->cqe_dma);
+
+ INIT_QC_COMMON(sqc, qp->sqe_dma, pasid);
+ if (ver == QM_HW_V1) {
+ sqc->dw3 = QM_MK_SQC_DW3_V1(0, 0, 0, qm->sqe_size);
+ sqc->w8 = QM_Q_DEPTH - 1;
+ } else if (ver == QM_HW_V2) {
+ sqc->dw3 = QM_MK_SQC_DW3_V2(qm->sqe_size);
+ sqc->w8 = 0;
+ }
+ sqc->cq_num = qp_id;
+ sqc->w13 = QM_MK_SQC_W13(0, 1, qp->alg_type);
+
+ ret = qm_mb(qm, QM_MB_CMD_SQC, qp->sqc_dma, qp_id, 0, 0);
+ if (ret)
+ return ret;
+
+ INIT_QC_COMMON(cqc, qp->cqe_dma, pasid);
+ if (ver == QM_HW_V1) {
+ cqc->dw3 = QM_MK_CQC_DW3_V1(0, 0, 0, 4);
+ cqc->w8 = QM_Q_DEPTH - 1;
+ } else if (ver == QM_HW_V2) {
+ cqc->dw3 = QM_MK_CQC_DW3_V2(4);
+ cqc->w8 = 0;
+ }
+ 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, "queue %d started\n", qp_id);
+
+ return qp_id;
+}
+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;
+
+ /* it is stopped */
+ if (test_bit(QP_STOP, &qp->qp_status.flags))
+ return 0;
+
+ while (atomic_read(&qp->qp_status.used)) {
+ i++;
+ msleep(5);
+ if (i == 10) {
+ dev_err(dev, "Cannot drain out data for stopping, Force to stop!\n");
+ return -EBUSY;
+ }
+ }
+
+ set_bit(QP_STOP, &qp->qp_status.flags);
+
+ dev_dbg(dev, "stop queue %u!", qp->qp_id);
+
+ 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, "QP is stopped or 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);
+
+static void hisi_qm_cache_wb(struct hisi_qm *qm)
+{
+ int val;
+
+ if (qm->ver == QM_HW_V2) {
+ writel(0x1, qm->io_base + QM_CACHE_WB_START);
+ if (readl_relaxed_poll_timeout(qm->io_base + QM_CACHE_WB_DONE,
+ val, val & BIT(0), 10, 1000))
+ dev_err(&qm->pdev->dev, "QM writeback sqc cache fail!\n");
+ }
+}
+
+/**
+ * hisi_qm_init() - Initialize configures about qm.
+ * @qm: The qm needed init.
+ *
+ * This function init qm, then we can call 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;
+ 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);
+
+ if (!qm->ops->get_irq_num) {
+ ret = -EOPNOTSUPP;
+ goto err_iounmap;
+ }
+ 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);
+
+ dev_dbg(dev, "init qm %s with %s\n", pdev->is_physfn ? "pf" : "vf",
+ qm->use_dma_api ? "dma api" : "iommu api");
+
+ 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;
+ struct device *dev = &pdev->dev;
+
+ if (qm->use_dma_api && qm->qdma.va) {
+ hisi_qm_cache_wb(qm);
+ dma_free_coherent(dev, qm->qdma.size,
+ qm->qdma.va, qm->qdma.dma);
+ memset(&qm->qdma, 0, sizeof(qm->qdma));
+ }
+
+ 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_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_set_sqc_cqc_vft(qm, fun_num, base, number);
+}
+EXPORT_SYMBOL_GPL(hisi_qm_set_vft);
+
+static 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;
+ size_t off = 0;
+
+#define QM_INIT_BUF(qm, type, num) do { \
+ (qm)->type = ((qm)->qdma.va + (off)); \
+ (qm)->type##_dma = (qm)->qdma.dma + (off); \
+ off += QMC_ALIGN(sizeof(struct qm_##type) * (num)); \
+} while (0)
+
+ WARN_ON(!qm->qdma.dma);
+
+ if (qm->qp_num == 0)
+ return -EINVAL;
+
+ if (qm->fun_type == QM_HW_PF) {
+ ret = qm_dev_mem_reset(qm);
+ if (ret)
+ return ret;
+
+ ret = hisi_qm_set_vft(qm, 0, qm->qp_base, qm->qp_num);
+ if (ret)
+ return ret;
+ }
+
+ QM_INIT_BUF(qm, eqe, QM_Q_DEPTH);
+ QM_INIT_BUF(qm, aeqe, QM_Q_DEPTH);
+ QM_INIT_BUF(qm, sqc, qm->qp_num);
+ QM_INIT_BUF(qm, cqc, qm->qp_num);
+ QM_INIT_BUF(qm, eqc, 1);
+ QM_INIT_BUF(qm, aeqc, 1);
+
+ dev_dbg(dev, "init qm buffer:\n"
+ " eqe (%lx, %lx)\n"
+ " aeqe (%lx, %lx)\n"
+ " sqc (%lx, %lx)\n"
+ " cqc (%lx, %lx)\n"
+ " eqc (%lx, %lx)\n"
+ " aeqc (%lx, %lx)\n",
+ (unsigned long)qm->eqe, (unsigned long)qm->eqe_dma,
+ (unsigned long)qm->aeqe, (unsigned long)qm->aeqe_dma,
+ (unsigned long)qm->sqc, (unsigned long)qm->sqc_dma,
+ (unsigned long)qm->cqc, (unsigned long)qm->cqc_dma,
+ (unsigned long)qm->eqc, (unsigned long)qm->eqc_dma,
+ (unsigned long)qm->aeqc, (unsigned long)qm->aeqc_dma);
+
+ eqc = qm->eqc;
+ 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;
+ 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;
+
+ writel(0x0, qm->io_base + QM_VF_EQ_INT_MASK);
+
+ return 0;
+}
+
+/**
+ * hisi_qm_start() - start qm
+ * @qm: The qm to be started.
+ *
+ * This function starts a qm, then we can allocate qp from this qm.
+ */
+int hisi_qm_start(struct hisi_qm *qm)
+{
+ struct device *dev = &qm->pdev->dev;
+
+ dev_dbg(dev, "qm start with %d queue pairs\n", qm->qp_num);
+
+ if (!qm->qp_num)
+ return -EINVAL;
+
+ if (!qm->qp_bitmap) {
+ qm->qp_bitmap = devm_kcalloc(dev, BITS_TO_LONGS(qm->qp_num),
+ sizeof(long), GFP_KERNEL);
+ qm->qp_array = devm_kcalloc(dev, qm->qp_num,
+ sizeof(struct hisi_qp *),
+ GFP_KERNEL);
+ if (!qm->qp_bitmap || !qm->qp_array)
+ return -ENOMEM;
+ }
+
+ if (!qm->use_dma_api) {
+ dev_dbg(&qm->pdev->dev, "qm delay start\n");
+ return 0;
+ } else if (!qm->qdma.va) {
+ qm->qdma.size = QMC_ALIGN(sizeof(struct qm_eqe) * QM_Q_DEPTH) +
+ QMC_ALIGN(sizeof(struct qm_aeqe) * QM_Q_DEPTH) +
+ QMC_ALIGN(sizeof(struct qm_sqc) * qm->qp_num) +
+ QMC_ALIGN(sizeof(struct qm_cqc) * qm->qp_num) +
+ QMC_ALIGN(sizeof(struct qm_eqc)) +
+ QMC_ALIGN(sizeof(struct qm_aeqc));
+ qm->qdma.va = dma_alloc_coherent(dev, qm->qdma.size,
+ &qm->qdma.dma, GFP_KERNEL);
+ dev_dbg(dev, "allocate qm dma buf(va=%p, dma=%pad, size=%lx)\n",
+ qm->qdma.va, &qm->qdma.dma, qm->qdma.size);
+ if (!qm->qdma.va)
+ return -ENOMEM;
+ }
+
+ return __hisi_qm_start(qm);
+}
+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;
+ struct hisi_qp *qp;
+ int ret, i;
+
+ pr_debug("hisi_qm stop\n");
+
+ if (!qm || !qm->pdev) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ dev = &qm->pdev->dev;
+
+ /* 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 = hisi_qm_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_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;
+ int i;
+
+ for (i = 0; i < qm->qp_num; i++, qp++) {
+ qp = qm->qp_array[i];
+ if (qp) {
+ memset(qp->qdma.va, 0, qp->qdma.size);
+ memset(&qp->qp_status, 0, sizeof(qp->qp_status));
+ }
+ }
+ memset(qm->qdma.va, 0, qm->qdma.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);
+
+/**
+ * hisi_qp_poll() - Poll current cqe to see if a task is finished.
+ * @qp: The qp which will poll.
+ *
+ * This function polls current cqe for a give qp to see if a task is finished.
+ * Return -ETIME if timeout.
+ */
+int hisi_qp_poll(struct hisi_qp *qp)
+{
+ struct qm_cqe *cqe = qp->cqe + qp->qp_status.cq_head;
+ struct qm_cqc *cqc = qp->cqc;
+ int retries = 1000;
+
+ while (!(QM_CQE_PHASE(cqe) == (cqc->dw6 & 0x1))) {
+ dma_rmb();
+ if (!--retries) {
+ dev_err(&qp->qm->pdev->dev, "Poll cqe failed!\n");
+ return -ETIME;
+ }
+ udelay(10);
+ }
+
+ qm_cq_head_update(qp);
+ atomic_dec(&qp->qp_status.used);
+
+ qm_db(qp->qm, qp->qp_id, QM_DOORBELL_CMD_CQ, qp->qp_status.cq_head, 0);
+ /* set c_flag */
+ qm_db(qp->qm, qp->qp_id, QM_DOORBELL_CMD_CQ, qp->qp_status.cq_head, 1);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_qp_poll);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Zhou Wang <wangzhou1@xxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("HiSilicon Accelerator queue manager driver");
diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h
new file mode 100644
index 0000000..447c553
--- /dev/null
+++ b/drivers/crypto/hisilicon/qm.h
@@ -0,0 +1,276 @@
+// 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>
+
+/* 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
+
+#define QM_Q_DEPTH 1024
+
+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 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 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;
+};
+
+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;
+};
+
+struct qm_dma {
+ void *va;
+ dma_addr_t dma;
+ size_t size;
+};
+
+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 qdma;
+ struct qm_sqc *sqc;
+ struct qm_cqc *cqc;
+ struct qm_eqc *eqc;
+ struct qm_eqe *eqe;
+ struct qm_aeqc *aeqc;
+ struct qm_aeqe *aeqe;
+ dma_addr_t sqc_dma;
+ dma_addr_t cqc_dma;
+ dma_addr_t eqc_dma;
+ dma_addr_t eqe_dma;
+ dma_addr_t aeqc_dma;
+ dma_addr_t aeqe_dma;
+
+ 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;
+
+ bool use_dma_api;
+ bool use_uacce;
+};
+
+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 qdma;
+ struct qm_sqc *sqc;
+ struct qm_cqc *cqc;
+ void *sqe;
+ struct qm_cqe *cqe;
+ dma_addr_t sqc_dma;
+ dma_addr_t cqc_dma;
+ dma_addr_t sqe_dma;
+ dma_addr_t cqe_dma;
+
+ 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_start(struct hisi_qm *qm);
+int hisi_qm_stop(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_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);
+int hisi_qp_poll(struct hisi_qp *qp);
+#endif
--
2.8.1
