drivers/net/ethernet/huawei/hinic/hinic_hw_mgmt.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Huawei HiNIC PCI Express Linux driver
   4  * Copyright(c) 2017 Huawei Technologies Co., Ltd
   5  */
   6
   7 #ifndef HINIC_HW_MGMT_H
   8 #define HINIC_HW_MGMT_H
   9
  10 #include <linux/types.h>
  11 #include <linux/semaphore.h>
  12 #include <linux/completion.h>
  13 #include <linux/bitops.h>
  14
  15 #include "hinic_hw_if.h"
  16 #include "hinic_hw_api_cmd.h"
  17
  18 #define HINIC_MSG_HEADER_MSG_LEN_SHIFT                          0
  19 #define HINIC_MSG_HEADER_MODULE_SHIFT                           11
  20 #define HINIC_MSG_HEADER_SEG_LEN_SHIFT                          16
  21 #define HINIC_MSG_HEADER_NO_ACK_SHIFT                           22
  22 #define HINIC_MSG_HEADER_ASYNC_MGMT_TO_PF_SHIFT                 23
  23 #define HINIC_MSG_HEADER_SEQID_SHIFT                            24
  24 #define HINIC_MSG_HEADER_LAST_SHIFT                             30
  25 #define HINIC_MSG_HEADER_DIRECTION_SHIFT                        31
  26 #define HINIC_MSG_HEADER_CMD_SHIFT                              32
  27 #define HINIC_MSG_HEADER_ZEROS_SHIFT                            40
  28 #define HINIC_MSG_HEADER_PCI_INTF_SHIFT                         48
  29 #define HINIC_MSG_HEADER_PF_IDX_SHIFT                           50
  30 #define HINIC_MSG_HEADER_MSG_ID_SHIFT                           54
  31
  32 #define HINIC_MSG_HEADER_MSG_LEN_MASK                           0x7FF
  33 #define HINIC_MSG_HEADER_MODULE_MASK                            0x1F
  34 #define HINIC_MSG_HEADER_SEG_LEN_MASK                           0x3F
  35 #define HINIC_MSG_HEADER_NO_ACK_MASK                            0x1
  36 #define HINIC_MSG_HEADER_ASYNC_MGMT_TO_PF_MASK                  0x1
  37 #define HINIC_MSG_HEADER_SEQID_MASK                             0x3F
  38 #define HINIC_MSG_HEADER_LAST_MASK                              0x1
  39 #define HINIC_MSG_HEADER_DIRECTION_MASK                         0x1
  40 #define HINIC_MSG_HEADER_CMD_MASK                               0xFF
  41 #define HINIC_MSG_HEADER_ZEROS_MASK                             0xFF
  42 #define HINIC_MSG_HEADER_PCI_INTF_MASK                          0x3
  43 #define HINIC_MSG_HEADER_PF_IDX_MASK                            0xF
  44 #define HINIC_MSG_HEADER_MSG_ID_MASK                            0x3FF
  45
  46 #define HINIC_MSG_HEADER_SET(val, member)                       \
  47                 ((u64)((val) & HINIC_MSG_HEADER_##member##_MASK) << \
  48                  HINIC_MSG_HEADER_##member##_SHIFT)
  49
  50 #define HINIC_MSG_HEADER_GET(val, member)                       \
  51                 (((val) >> HINIC_MSG_HEADER_##member##_SHIFT) & \
  52                  HINIC_MSG_HEADER_##member##_MASK)
  53
  54 enum hinic_mgmt_msg_type {
  55         HINIC_MGMT_MSG_SYNC = 1,
  56 };
  57
  58 enum hinic_cfg_cmd {
  59         HINIC_CFG_NIC_CAP = 0,
  60 };
  61
  62 enum hinic_comm_cmd {
  63         HINIC_COMM_CMD_IO_STATUS_GET    = 0x3,
  64
  65         HINIC_COMM_CMD_CMDQ_CTXT_SET    = 0x10,
  66         HINIC_COMM_CMD_CMDQ_CTXT_GET    = 0x11,
  67
  68         HINIC_COMM_CMD_HWCTXT_SET       = 0x12,
  69         HINIC_COMM_CMD_HWCTXT_GET       = 0x13,
  70
  71         HINIC_COMM_CMD_SQ_HI_CI_SET     = 0x14,
  72
  73         HINIC_COMM_CMD_RES_STATE_SET    = 0x24,
  74
  75         HINIC_COMM_CMD_IO_RES_CLEAR     = 0x29,
  76
  77         HINIC_COMM_CMD_MAX              = 0x32,
  78 };
  79
  80 enum hinic_mgmt_cb_state {
  81         HINIC_MGMT_CB_ENABLED = BIT(0),
  82         HINIC_MGMT_CB_RUNNING = BIT(1),
  83 };
  84
  85 struct hinic_recv_msg {
  86         u8                      *msg;
  87         u8                      *buf_out;
  88
  89         struct completion       recv_done;
  90
  91         u16                     cmd;
  92         enum hinic_mod_type     mod;
  93         int                     async_mgmt_to_pf;
  94
  95         u16                     msg_len;
  96         u16                     msg_id;
  97 };
  98
  99 struct hinic_mgmt_cb {
 100         void    (*cb)(void *handle, u8 cmd,
 101                       void *buf_in, u16 in_size,
 102                       void *buf_out, u16 *out_size);
 103
 104         void            *handle;
 105         unsigned long   state;
 106 };
 107
 108 struct hinic_pf_to_mgmt {
 109         struct hinic_hwif               *hwif;
 110
 111         struct semaphore                sync_msg_lock;
 112         u16                             sync_msg_id;
 113         u8                              *sync_msg_buf;
 114
 115         struct hinic_recv_msg           recv_resp_msg_from_mgmt;
 116         struct hinic_recv_msg           recv_msg_from_mgmt;
 117
 118         struct hinic_api_cmd_chain      *cmd_chain[HINIC_API_CMD_MAX];
 119
 120         struct hinic_mgmt_cb            mgmt_cb[HINIC_MOD_MAX];
 121 };
 122
 123 void hinic_register_mgmt_msg_cb(struct hinic_pf_to_mgmt *pf_to_mgmt,
 124                                 enum hinic_mod_type mod,
 125                                 void *handle,
 126                                 void (*callback)(void *handle,
 127                                                  u8 cmd, void *buf_in,
 128                                                  u16 in_size, void *buf_out,
 129                                                  u16 *out_size));
 130
 131 void hinic_unregister_mgmt_msg_cb(struct hinic_pf_to_mgmt *pf_to_mgmt,
 132                                   enum hinic_mod_type mod);
 133
 134 int hinic_msg_to_mgmt(struct hinic_pf_to_mgmt *pf_to_mgmt,
 135                       enum hinic_mod_type mod, u8 cmd,
 136                       void *buf_in, u16 in_size, void *buf_out, u16 *out_size,
 137                       enum hinic_mgmt_msg_type sync);
 138
 139 int hinic_pf_to_mgmt_init(struct hinic_pf_to_mgmt *pf_to_mgmt,
 140                           struct hinic_hwif *hwif);
 141
 142 void hinic_pf_to_mgmt_free(struct hinic_pf_to_mgmt *pf_to_mgmt);
 143
 144 #endif