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/* SPDX-License-Identifier: GPL-2.0-only */
/* Huawei HiNIC PCI Express Linux driver
* Copyright(c) 2017 Huawei Technologies Co., Ltd
*/
#ifndef HINIC_MBOX_H_
#define HINIC_MBOX_H_
#define HINIC_MBOX_PF_SEND_ERR 0x1
#define HINIC_MBOX_PF_BUSY_ACTIVE_FW 0x2
#define HINIC_MBOX_VF_CMD_ERROR 0x3
#define HINIC_MAX_FUNCTIONS 512
#define HINIC_MAX_PF_FUNCS 16
#define HINIC_MBOX_WQ_NAME "hinic_mbox"
#define HINIC_FUNC_CSR_MAILBOX_DATA_OFF 0x80
#define HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF 0x0100
#define HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF 0x0104
#define HINIC_FUNC_CSR_MAILBOX_RESULT_H_OFF 0x0108
#define HINIC_FUNC_CSR_MAILBOX_RESULT_L_OFF 0x010C
enum hinic_mbox_ack_type {
MBOX_ACK,
MBOX_NO_ACK,
};
struct mbox_msg_info {
u8 msg_id;
u8 status;
};
struct hinic_recv_mbox {
struct completion recv_done;
void *mbox;
u8 cmd;
enum hinic_mod_type mod;
u16 mbox_len;
void *buf_out;
enum hinic_mbox_ack_type ack_type;
struct mbox_msg_info msg_info;
u8 seq_id;
atomic_t msg_cnt;
};
struct hinic_send_mbox {
struct completion send_done;
u8 *data;
u64 *wb_status;
void *wb_vaddr;
dma_addr_t wb_paddr;
};
typedef void (*hinic_vf_mbox_cb)(void *handle, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size);
typedef int (*hinic_pf_mbox_cb)(void *handle, u16 vf_id, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size);
enum mbox_event_state {
EVENT_START = 0,
EVENT_FAIL,
EVENT_TIMEOUT,
EVENT_END,
};
enum hinic_mbox_cb_state {
HINIC_VF_MBOX_CB_REG = 0,
HINIC_VF_MBOX_CB_RUNNING,
HINIC_PF_MBOX_CB_REG,
HINIC_PF_MBOX_CB_RUNNING,
HINIC_PPF_MBOX_CB_REG,
HINIC_PPF_MBOX_CB_RUNNING,
HINIC_PPF_TO_PF_MBOX_CB_REG,
HINIC_PPF_TO_PF_MBOX_CB_RUNNIG,
};
struct hinic_mbox_func_to_func {
struct hinic_hwdev *hwdev;
struct hinic_hwif *hwif;
struct semaphore mbox_send_sem;
struct semaphore msg_send_sem;
struct hinic_send_mbox send_mbox;
struct workqueue_struct *workq;
struct hinic_recv_mbox mbox_resp[HINIC_MAX_FUNCTIONS];
struct hinic_recv_mbox mbox_send[HINIC_MAX_FUNCTIONS];
hinic_vf_mbox_cb vf_mbox_cb[HINIC_MOD_MAX];
hinic_pf_mbox_cb pf_mbox_cb[HINIC_MOD_MAX];
unsigned long pf_mbox_cb_state[HINIC_MOD_MAX];
unsigned long vf_mbox_cb_state[HINIC_MOD_MAX];
u8 send_msg_id;
enum mbox_event_state event_flag;
/* lock for mbox event flag */
spinlock_t mbox_lock;
};
struct hinic_mbox_work {
struct work_struct work;
u16 src_func_idx;
struct hinic_mbox_func_to_func *func_to_func;
struct hinic_recv_mbox *recv_mbox;
};
struct vf_cmd_msg_handle {
u8 cmd;
int (*cmd_msg_handler)(void *hwdev, u16 vf_id,
void *buf_in, u16 in_size,
void *buf_out, u16 *out_size);
};
int hinic_register_pf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod,
hinic_pf_mbox_cb callback);
int hinic_register_vf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod,
hinic_vf_mbox_cb callback);
void hinic_unregister_pf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod);
void hinic_unregister_vf_mbox_cb(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod);
void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size);
void hinic_mbox_self_aeqe_handler(void *handle, void *header, u8 size);
int hinic_func_to_func_init(struct hinic_hwdev *hwdev);
void hinic_func_to_func_free(struct hinic_hwdev *hwdev);
int hinic_mbox_to_pf(struct hinic_hwdev *hwdev, enum hinic_mod_type mod,
u8 cmd, void *buf_in, u16 in_size, void *buf_out,
u16 *out_size, u32 timeout);
int hinic_mbox_to_func(struct hinic_mbox_func_to_func *func_to_func,
enum hinic_mod_type mod, u16 cmd, u16 dst_func,
void *buf_in, u16 in_size, void *buf_out,
u16 *out_size, u32 timeout);
int hinic_mbox_to_vf(struct hinic_hwdev *hwdev,
enum hinic_mod_type mod, u16 vf_id, u8 cmd, void *buf_in,
u16 in_size, void *buf_out, u16 *out_size, u32 timeout);
#endif
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