drivers/net/ethernet/qlogic/qed/qed_hw.h

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015 QLogic Corporation
   3  *
   4  * This software is available under the terms of the GNU General Public License
   5  * (GPL) Version 2, available from the file COPYING in the main directory of
   6  * this source tree.
   7  */
   8
   9 #ifndef _QED_HW_H
  10 #define _QED_HW_H
  11
  12 #include <linux/types.h>
  13 #include <linux/bitops.h>
  14 #include <linux/slab.h>
  15 #include <linux/string.h>
  16 #include "qed.h"
  17 #include "qed_dev_api.h"
  18
  19 /* Forward decleration */
  20 struct qed_ptt;
  21
  22 enum reserved_ptts {
  23         RESERVED_PTT_EDIAG,
  24         RESERVED_PTT_USER_SPACE,
  25         RESERVED_PTT_MAIN,
  26         RESERVED_PTT_DPC,
  27         RESERVED_PTT_MAX
  28 };
  29
  30 enum _dmae_cmd_dst_mask {
  31         DMAE_CMD_DST_MASK_NONE  = 0,
  32         DMAE_CMD_DST_MASK_PCIE  = 1,
  33         DMAE_CMD_DST_MASK_GRC   = 2
  34 };
  35
  36 enum _dmae_cmd_src_mask {
  37         DMAE_CMD_SRC_MASK_PCIE  = 0,
  38         DMAE_CMD_SRC_MASK_GRC   = 1
  39 };
  40
  41 enum _dmae_cmd_crc_mask {
  42         DMAE_CMD_COMP_CRC_EN_MASK_NONE  = 0,
  43         DMAE_CMD_COMP_CRC_EN_MASK_SET   = 1
  44 };
  45
  46 /* definitions for DMA constants */
  47 #define DMAE_GO_VALUE   0x1
  48
  49 #define DMAE_COMPLETION_VAL     0xD1AE
  50 #define DMAE_CMD_ENDIANITY      0x2
  51
  52 #define DMAE_CMD_SIZE   14
  53 #define DMAE_CMD_SIZE_TO_FILL   (DMAE_CMD_SIZE - 5)
  54 #define DMAE_MIN_WAIT_TIME      0x2
  55 #define DMAE_MAX_CLIENTS        32
  56
  57 /**
  58  * @brief qed_gtt_init - Initialize GTT windows
  59  *
  60  * @param p_hwfn
  61  */
  62 void qed_gtt_init(struct qed_hwfn *p_hwfn);
  63
  64 /**
  65  * @brief qed_ptt_invalidate - Forces all ptt entries to be re-configured
  66  *
  67  * @param p_hwfn
  68  */
  69 void qed_ptt_invalidate(struct qed_hwfn *p_hwfn);
  70
  71 /**
  72  * @brief qed_ptt_pool_alloc - Allocate and initialize PTT pool
  73  *
  74  * @param p_hwfn
  75  *
  76  * @return struct _qed_status - success (0), negative - error.
  77  */
  78 int qed_ptt_pool_alloc(struct qed_hwfn *p_hwfn);
  79
  80 /**
  81  * @brief qed_ptt_pool_free -
  82  *
  83  * @param p_hwfn
  84  */
  85 void qed_ptt_pool_free(struct qed_hwfn *p_hwfn);
  86
  87 /**
  88  * @brief qed_ptt_get_hw_addr - Get PTT's GRC/HW address
  89  *
  90  * @param p_hwfn
  91  * @param p_ptt
  92  *
  93  * @return u32
  94  */
  95 u32 qed_ptt_get_hw_addr(struct qed_hwfn *p_hwfn,
  96                         struct qed_ptt *p_ptt);
  97
  98 /**
  99  * @brief qed_ptt_get_bar_addr - Get PPT's external BAR address
 100  *
 101  * @param p_hwfn
 102  * @param p_ptt
 103  *
 104  * @return u32
 105  */
 106 u32 qed_ptt_get_bar_addr(struct qed_ptt *p_ptt);
 107
 108 /**
 109  * @brief qed_ptt_set_win - Set PTT Window's GRC BAR address
 110  *
 111  * @param p_hwfn
 112  * @param new_hw_addr
 113  * @param p_ptt
 114  */
 115 void qed_ptt_set_win(struct qed_hwfn *p_hwfn,
 116                      struct qed_ptt *p_ptt,
 117                      u32 new_hw_addr);
 118
 119 /**
 120  * @brief qed_get_reserved_ptt - Get a specific reserved PTT
 121  *
 122  * @param p_hwfn
 123  * @param ptt_idx
 124  *
 125  * @return struct qed_ptt *
 126  */
 127 struct qed_ptt *qed_get_reserved_ptt(struct qed_hwfn *p_hwfn,
 128                                      enum reserved_ptts ptt_idx);
 129
 130 /**
 131  * @brief qed_wr - Write value to BAR using the given ptt
 132  *
 133  * @param p_hwfn
 134  * @param p_ptt
 135  * @param val
 136  * @param hw_addr
 137  */
 138 void qed_wr(struct qed_hwfn *p_hwfn,
 139             struct qed_ptt *p_ptt,
 140             u32 hw_addr,
 141             u32 val);
 142
 143 /**
 144  * @brief qed_rd - Read value from BAR using the given ptt
 145  *
 146  * @param p_hwfn
 147  * @param p_ptt
 148  * @param val
 149  * @param hw_addr
 150  */
 151 u32 qed_rd(struct qed_hwfn *p_hwfn,
 152            struct qed_ptt *p_ptt,
 153            u32 hw_addr);
 154
 155 /**
 156  * @brief qed_memcpy_from - copy n bytes from BAR using the given
 157  *        ptt
 158  *
 159  * @param p_hwfn
 160  * @param p_ptt
 161  * @param dest
 162  * @param hw_addr
 163  * @param n
 164  */
 165 void qed_memcpy_from(struct qed_hwfn *p_hwfn,
 166                      struct qed_ptt *p_ptt,
 167                      void *dest,
 168                      u32 hw_addr,
 169                      size_t n);
 170
 171 /**
 172  * @brief qed_memcpy_to - copy n bytes to BAR using the given
 173  *        ptt
 174  *
 175  * @param p_hwfn
 176  * @param p_ptt
 177  * @param hw_addr
 178  * @param src
 179  * @param n
 180  */
 181 void qed_memcpy_to(struct qed_hwfn *p_hwfn,
 182                    struct qed_ptt *p_ptt,
 183                    u32 hw_addr,
 184                    void *src,
 185                    size_t n);
 186 /**
 187  * @brief qed_fid_pretend - pretend to another function when
 188  *        accessing the ptt window. There is no way to unpretend
 189  *        a function. The only way to cancel a pretend is to
 190  *        pretend back to the original function.
 191  *
 192  * @param p_hwfn
 193  * @param p_ptt
 194  * @param fid - fid field of pxp_pretend structure. Can contain
 195  *            either pf / vf, port/path fields are don't care.
 196  */
 197 void qed_fid_pretend(struct qed_hwfn *p_hwfn,
 198                      struct qed_ptt *p_ptt,
 199                      u16 fid);
 200
 201 /**
 202  * @brief qed_port_pretend - pretend to another port when
 203  *        accessing the ptt window
 204  *
 205  * @param p_hwfn
 206  * @param p_ptt
 207  * @param port_id - the port to pretend to
 208  */
 209 void qed_port_pretend(struct qed_hwfn *p_hwfn,
 210                       struct qed_ptt *p_ptt,
 211                       u8 port_id);
 212
 213 /**
 214  * @brief qed_port_unpretend - cancel any previously set port
 215  *        pretend
 216  *
 217  * @param p_hwfn
 218  * @param p_ptt
 219  */
 220 void qed_port_unpretend(struct qed_hwfn *p_hwfn,
 221                         struct qed_ptt *p_ptt);
 222
 223 /**
 224  * @brief qed_dmae_idx_to_go_cmd - map the idx to dmae cmd
 225  * this is declared here since other files will require it.
 226  * @param idx
 227  */
 228 u32 qed_dmae_idx_to_go_cmd(u8 idx);
 229
 230 /**
 231  * @brief qed_dmae_info_alloc - Init the dmae_info structure
 232  * which is part of p_hwfn.
 233  * @param p_hwfn
 234  */
 235 int qed_dmae_info_alloc(struct qed_hwfn *p_hwfn);
 236
 237 /**
 238  * @brief qed_dmae_info_free - Free the dmae_info structure
 239  * which is part of p_hwfn
 240  *
 241  * @param p_hwfn
 242  */
 243 void qed_dmae_info_free(struct qed_hwfn *p_hwfn);
 244
 245 union qed_qm_pq_params {
 246         struct {
 247                 u8 tc;
 248         }       core;
 249
 250         struct {
 251                 u8      is_vf;
 252                 u8      vf_id;
 253                 u8      tc;
 254         }       eth;
 255 };
 256
 257 u16 qed_get_qm_pq(struct qed_hwfn *p_hwfn,
 258                   enum protocol_type proto,
 259                   union qed_qm_pq_params *params);
 260
 261 int qed_init_fw_data(struct qed_dev *cdev,
 262                      const u8 *fw_data);
 263 #endif