/* SPDX-License-Identifier: GPL-2.0-only */
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/* Huawei HiNIC PCI Express Linux driver
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* Copyright(c) 2017 Huawei Technologies Co., Ltd
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*/
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#ifndef HINIC_MBOX_H_
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#define HINIC_MBOX_H_
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#define HINIC_MBOX_PF_SEND_ERR 0x1
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#define HINIC_MBOX_PF_BUSY_ACTIVE_FW 0x2
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#define HINIC_MBOX_VF_CMD_ERROR 0x3
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#define HINIC_MAX_FUNCTIONS 512
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#define HINIC_MAX_PF_FUNCS 16
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#define HINIC_MBOX_WQ_NAME "hinic_mbox"
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#define HINIC_FUNC_CSR_MAILBOX_DATA_OFF 0x80
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#define HINIC_FUNC_CSR_MAILBOX_CONTROL_OFF 0x0100
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#define HINIC_FUNC_CSR_MAILBOX_INT_OFFSET_OFF 0x0104
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#define HINIC_FUNC_CSR_MAILBOX_RESULT_H_OFF 0x0108
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#define HINIC_FUNC_CSR_MAILBOX_RESULT_L_OFF 0x010C
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#define MAX_FUNCTION_NUM 512
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struct vf_cmd_check_handle {
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u8 cmd;
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bool (*check_cmd)(struct hinic_hwdev *hwdev, u16 src_func_idx,
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void *buf_in, u16 in_size);
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};
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enum hinic_mbox_ack_type {
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MBOX_ACK,
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MBOX_NO_ACK,
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};
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struct mbox_msg_info {
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u8 msg_id;
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u8 status;
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};
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struct hinic_recv_mbox {
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struct completion recv_done;
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void *mbox;
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u8 cmd;
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enum hinic_mod_type mod;
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u16 mbox_len;
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void *buf_out;
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enum hinic_mbox_ack_type ack_type;
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struct mbox_msg_info msg_info;
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u8 seq_id;
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atomic_t msg_cnt;
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};
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struct hinic_send_mbox {
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struct completion send_done;
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u8 *data;
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u64 *wb_status;
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void *wb_vaddr;
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dma_addr_t wb_paddr;
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};
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typedef void (*hinic_vf_mbox_cb)(void *handle, u8 cmd, void *buf_in,
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u16 in_size, void *buf_out, u16 *out_size);
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typedef int (*hinic_pf_mbox_cb)(void *handle, u16 vf_id, u8 cmd, void *buf_in,
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u16 in_size, void *buf_out, u16 *out_size);
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enum mbox_event_state {
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EVENT_START = 0,
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EVENT_FAIL,
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EVENT_TIMEOUT,
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EVENT_END,
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};
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enum hinic_mbox_cb_state {
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HINIC_VF_MBOX_CB_REG = 0,
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HINIC_VF_MBOX_CB_RUNNING,
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HINIC_PF_MBOX_CB_REG,
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HINIC_PF_MBOX_CB_RUNNING,
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HINIC_PPF_MBOX_CB_REG,
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HINIC_PPF_MBOX_CB_RUNNING,
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HINIC_PPF_TO_PF_MBOX_CB_REG,
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HINIC_PPF_TO_PF_MBOX_CB_RUNNIG,
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};
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struct hinic_mbox_func_to_func {
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struct hinic_hwdev *hwdev;
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struct hinic_hwif *hwif;
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struct semaphore mbox_send_sem;
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struct semaphore msg_send_sem;
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struct hinic_send_mbox send_mbox;
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struct workqueue_struct *workq;
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struct hinic_recv_mbox mbox_resp[HINIC_MAX_FUNCTIONS];
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struct hinic_recv_mbox mbox_send[HINIC_MAX_FUNCTIONS];
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hinic_vf_mbox_cb vf_mbox_cb[HINIC_MOD_MAX];
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hinic_pf_mbox_cb pf_mbox_cb[HINIC_MOD_MAX];
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unsigned long pf_mbox_cb_state[HINIC_MOD_MAX];
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unsigned long vf_mbox_cb_state[HINIC_MOD_MAX];
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u8 send_msg_id;
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enum mbox_event_state event_flag;
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/* lock for mbox event flag */
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spinlock_t mbox_lock;
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u32 vf_mbx_old_rand_id[MAX_FUNCTION_NUM];
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u32 vf_mbx_rand_id[MAX_FUNCTION_NUM];
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bool support_vf_random;
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};
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struct hinic_mbox_work {
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struct work_struct work;
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u16 src_func_idx;
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struct hinic_mbox_func_to_func *func_to_func;
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struct hinic_recv_mbox *recv_mbox;
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};
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struct vf_cmd_msg_handle {
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u8 cmd;
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int (*cmd_msg_handler)(void *hwdev, u16 vf_id,
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void *buf_in, u16 in_size,
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void *buf_out, u16 *out_size);
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};
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bool hinic_mbox_check_func_id_8B(struct hinic_hwdev *hwdev, u16 func_idx,
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void *buf_in, u16 in_size);
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bool hinic_mbox_check_cmd_valid(struct hinic_hwdev *hwdev,
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struct vf_cmd_check_handle *cmd_handle,
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u16 vf_id, u8 cmd, void *buf_in,
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u16 in_size, u8 size);
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int hinic_register_pf_mbox_cb(struct hinic_hwdev *hwdev,
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enum hinic_mod_type mod,
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hinic_pf_mbox_cb callback);
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int hinic_register_vf_mbox_cb(struct hinic_hwdev *hwdev,
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enum hinic_mod_type mod,
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hinic_vf_mbox_cb callback);
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void hinic_unregister_pf_mbox_cb(struct hinic_hwdev *hwdev,
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enum hinic_mod_type mod);
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void hinic_unregister_vf_mbox_cb(struct hinic_hwdev *hwdev,
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enum hinic_mod_type mod);
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void hinic_mbox_func_aeqe_handler(void *handle, void *header, u8 size);
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void hinic_mbox_self_aeqe_handler(void *handle, void *header, u8 size);
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int hinic_func_to_func_init(struct hinic_hwdev *hwdev);
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void hinic_func_to_func_free(struct hinic_hwdev *hwdev);
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int hinic_mbox_to_pf(struct hinic_hwdev *hwdev, enum hinic_mod_type mod,
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u8 cmd, void *buf_in, u16 in_size, void *buf_out,
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u16 *out_size, u32 timeout);
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int hinic_mbox_to_func(struct hinic_mbox_func_to_func *func_to_func,
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enum hinic_mod_type mod, u16 cmd, u16 dst_func,
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void *buf_in, u16 in_size, void *buf_out,
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u16 *out_size, u32 timeout);
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int hinic_mbox_to_vf(struct hinic_hwdev *hwdev,
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enum hinic_mod_type mod, u16 vf_id, u8 cmd, void *buf_in,
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u16 in_size, void *buf_out, u16 *out_size, u32 timeout);
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int hinic_vf_mbox_random_id_init(struct hinic_hwdev *hwdev);
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#endif
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