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   1 /*
   2  * Copyright (c) 2006 Cisco Systems, Inc.  All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #ifndef MLX4_CMD_H
  34 #define MLX4_CMD_H
  35
  36 #include <linux/dma-mapping.h>
  37
  38 enum {
  39         /* initialization and general commands */
  40         MLX4_CMD_SYS_EN          = 0x1,
  41         MLX4_CMD_SYS_DIS         = 0x2,
  42         MLX4_CMD_MAP_FA          = 0xfff,
  43         MLX4_CMD_UNMAP_FA        = 0xffe,
  44         MLX4_CMD_RUN_FW          = 0xff6,
  45         MLX4_CMD_MOD_STAT_CFG    = 0x34,
  46         MLX4_CMD_QUERY_DEV_CAP   = 0x3,
  47         MLX4_CMD_QUERY_FW        = 0x4,
  48         MLX4_CMD_ENABLE_LAM      = 0xff8,
  49         MLX4_CMD_DISABLE_LAM     = 0xff7,
  50         MLX4_CMD_QUERY_DDR       = 0x5,
  51         MLX4_CMD_QUERY_ADAPTER   = 0x6,
  52         MLX4_CMD_INIT_HCA        = 0x7,
  53         MLX4_CMD_CLOSE_HCA       = 0x8,
  54         MLX4_CMD_INIT_PORT       = 0x9,
  55         MLX4_CMD_CLOSE_PORT      = 0xa,
  56         MLX4_CMD_QUERY_HCA       = 0xb,
  57         MLX4_CMD_QUERY_PORT      = 0x43,
  58         MLX4_CMD_SET_PORT        = 0xc,
  59         MLX4_CMD_ACCESS_DDR      = 0x2e,
  60         MLX4_CMD_MAP_ICM         = 0xffa,
  61         MLX4_CMD_UNMAP_ICM       = 0xff9,
  62         MLX4_CMD_MAP_ICM_AUX     = 0xffc,
  63         MLX4_CMD_UNMAP_ICM_AUX   = 0xffb,
  64         MLX4_CMD_SET_ICM_SIZE    = 0xffd,
  65
  66         /* TPT commands */
  67         MLX4_CMD_SW2HW_MPT       = 0xd,
  68         MLX4_CMD_QUERY_MPT       = 0xe,
  69         MLX4_CMD_HW2SW_MPT       = 0xf,
  70         MLX4_CMD_READ_MTT        = 0x10,
  71         MLX4_CMD_WRITE_MTT       = 0x11,
  72         MLX4_CMD_SYNC_TPT        = 0x2f,
  73
  74         /* EQ commands */
  75         MLX4_CMD_MAP_EQ          = 0x12,
  76         MLX4_CMD_SW2HW_EQ        = 0x13,
  77         MLX4_CMD_HW2SW_EQ        = 0x14,
  78         MLX4_CMD_QUERY_EQ        = 0x15,
  79
  80         /* CQ commands */
  81         MLX4_CMD_SW2HW_CQ        = 0x16,
  82         MLX4_CMD_HW2SW_CQ        = 0x17,
  83         MLX4_CMD_QUERY_CQ        = 0x18,
  84         MLX4_CMD_RESIZE_CQ       = 0x2c,
  85
  86         /* SRQ commands */
  87         MLX4_CMD_SW2HW_SRQ       = 0x35,
  88         MLX4_CMD_HW2SW_SRQ       = 0x36,
  89         MLX4_CMD_QUERY_SRQ       = 0x37,
  90         MLX4_CMD_ARM_SRQ         = 0x40,
  91
  92         /* QP/EE commands */
  93         MLX4_CMD_RST2INIT_QP     = 0x19,
  94         MLX4_CMD_INIT2RTR_QP     = 0x1a,
  95         MLX4_CMD_RTR2RTS_QP      = 0x1b,
  96         MLX4_CMD_RTS2RTS_QP      = 0x1c,
  97         MLX4_CMD_SQERR2RTS_QP    = 0x1d,
  98         MLX4_CMD_2ERR_QP         = 0x1e,
  99         MLX4_CMD_RTS2SQD_QP      = 0x1f,
 100         MLX4_CMD_SQD2SQD_QP      = 0x38,
 101         MLX4_CMD_SQD2RTS_QP      = 0x20,
 102         MLX4_CMD_2RST_QP         = 0x21,
 103         MLX4_CMD_QUERY_QP        = 0x22,
 104         MLX4_CMD_INIT2INIT_QP    = 0x2d,
 105         MLX4_CMD_SUSPEND_QP      = 0x32,
 106         MLX4_CMD_UNSUSPEND_QP    = 0x33,
 107         /* special QP and management commands */
 108         MLX4_CMD_CONF_SPECIAL_QP = 0x23,
 109         MLX4_CMD_MAD_IFC         = 0x24,
 110
 111         /* multicast commands */
 112         MLX4_CMD_READ_MCG        = 0x25,
 113         MLX4_CMD_WRITE_MCG       = 0x26,
 114         MLX4_CMD_MGID_HASH       = 0x27,
 115
 116         /* miscellaneous commands */
 117         MLX4_CMD_DIAG_RPRT       = 0x30,
 118         MLX4_CMD_NOP             = 0x31,
 119
 120         /* debug commands */
 121         MLX4_CMD_QUERY_DEBUG_MSG = 0x2a,
 122         MLX4_CMD_SET_DEBUG_MSG   = 0x2b,
 123 };
 124
 125 enum {
 126         MLX4_CMD_TIME_CLASS_A   = 10000,
 127         MLX4_CMD_TIME_CLASS_B   = 10000,
 128         MLX4_CMD_TIME_CLASS_C   = 10000,
 129 };
 130
 131 enum {
 132         MLX4_MAILBOX_SIZE       =  4096
 133 };
 134
 135 struct mlx4_dev;
 136
 137 struct mlx4_cmd_mailbox {
 138         void                   *buf;
 139         dma_addr_t              dma;
 140 };
 141
 142 int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 143                int out_is_imm, u32 in_modifier, u8 op_modifier,
 144                u16 op, unsigned long timeout);
 145
 146 /* Invoke a command with no output parameter */
 147 static inline int mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u32 in_modifier,
 148                            u8 op_modifier, u16 op, unsigned long timeout)
 149 {
 150         return __mlx4_cmd(dev, in_param, NULL, 0, in_modifier,
 151                           op_modifier, op, timeout);
 152 }
 153
 154 /* Invoke a command with an output mailbox */
 155 static inline int mlx4_cmd_box(struct mlx4_dev *dev, u64 in_param, u64 out_param,
 156                                u32 in_modifier, u8 op_modifier, u16 op,
 157                                unsigned long timeout)
 158 {
 159         return __mlx4_cmd(dev, in_param, &out_param, 0, in_modifier,
 160                           op_modifier, op, timeout);
 161 }
 162
 163 /*
 164  * Invoke a command with an immediate output parameter (and copy the
 165  * output into the caller's out_param pointer after the command
 166  * executes).
 167  */
 168 static inline int mlx4_cmd_imm(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 169                                u32 in_modifier, u8 op_modifier, u16 op,
 170                                unsigned long timeout)
 171 {
 172         return __mlx4_cmd(dev, in_param, out_param, 1, in_modifier,
 173                           op_modifier, op, timeout);
 174 }
 175
 176 struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev);
 177 void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox);
 178
 179 #endif /* MLX4_CMD_H */