ceph/src/seastar/dpdk/drivers/net/qede/base/ecore_mcp.h

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #ifndef __ECORE_MCP_H__
  10 #define __ECORE_MCP_H__
  11
  12 #include "bcm_osal.h"
  13 #include "mcp_public.h"
  14 #include "ecore.h"
  15 #include "ecore_mcp_api.h"
  16
  17 /* Using hwfn number (and not pf_num) is required since in CMT mode,
  18  * same pf_num may be used by two different hwfn
  19  * TODO - this shouldn't really be in .h file, but until all fields
  20  * required during hw-init will be placed in their correct place in shmem
  21  * we need it in ecore_dev.c [for readin the nvram reflection in shmem].
  22  */
  23 #define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (ECORE_IS_BB((p_hwfn)->p_dev) ? \
  24                                             ((rel_pfid) | \
  25                                              ((p_hwfn)->abs_pf_id & 1) << 3) : \
  26                                              rel_pfid)
  27 #define MCP_PF_ID(p_hwfn) MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
  28
  29 #define MFW_PORT(_p_hwfn)       ((_p_hwfn)->abs_pf_id % \
  30                                  ((_p_hwfn)->p_dev->num_ports_in_engines * \
  31                                   ecore_device_num_engines((_p_hwfn)->p_dev)))
  32
  33 struct ecore_mcp_info {
  34         /* Spinlock used for protecting the access to the MFW mailbox */
  35         osal_spinlock_t lock;
  36         /* Flag to indicate whether sending a MFW mailbox is forbidden */
  37         bool block_mb_sending;
  38
  39         /* Address of the MCP public area */
  40         u32 public_base;
  41         /* Address of the driver mailbox */
  42         u32 drv_mb_addr;
  43         /* Address of the MFW mailbox */
  44         u32 mfw_mb_addr;
  45         /* Address of the port configuration (link) */
  46         u32 port_addr;
  47
  48         /* Current driver mailbox sequence */
  49         u16 drv_mb_seq;
  50         /* Current driver pulse sequence */
  51         u16 drv_pulse_seq;
  52
  53         struct ecore_mcp_link_params       link_input;
  54         struct ecore_mcp_link_state        link_output;
  55         struct ecore_mcp_link_capabilities link_capabilities;
  56
  57         struct ecore_mcp_function_info     func_info;
  58
  59         u8 *mfw_mb_cur;
  60         u8 *mfw_mb_shadow;
  61         u16 mfw_mb_length;
  62         u16 mcp_hist;
  63 };
  64
  65 struct ecore_mcp_mb_params {
  66         u32 cmd;
  67         u32 param;
  68         void *p_data_src;
  69         u8 data_src_size;
  70         void *p_data_dst;
  71         u8 data_dst_size;
  72         u32 mcp_resp;
  73         u32 mcp_param;
  74 };
  75
  76 struct ecore_drv_tlv_hdr {
  77         u8 tlv_type;    /* According to the enum below */
  78         u8 tlv_length;  /* In dwords - not including this header */
  79         u8 tlv_reserved;
  80 #define ECORE_DRV_TLV_FLAGS_CHANGED 0x01
  81         u8 tlv_flags;
  82 };
  83
  84 /**
  85  * @brief Initialize the interface with the MCP
  86  *
  87  * @param p_hwfn - HW func
  88  * @param p_ptt - PTT required for register access
  89  *
  90  * @return enum _ecore_status_t
  91  */
  92 enum _ecore_status_t ecore_mcp_cmd_init(struct ecore_hwfn *p_hwfn,
  93                                         struct ecore_ptt *p_ptt);
  94
  95 /**
  96  * @brief Initialize the port interface with the MCP
  97  *
  98  * @param p_hwfn
  99  * @param p_ptt
 100  * Can only be called after `num_ports_in_engines' is set
 101  */
 102 void ecore_mcp_cmd_port_init(struct ecore_hwfn *p_hwfn,
 103                              struct ecore_ptt *p_ptt);
 104 /**
 105  * @brief Releases resources allocated during the init process.
 106  *
 107  * @param p_hwfn - HW func
 108  * @param p_ptt - PTT required for register access
 109  *
 110  * @return enum _ecore_status_t
 111  */
 112
 113 enum _ecore_status_t ecore_mcp_free(struct ecore_hwfn *p_hwfn);
 114
 115 /**
 116  * @brief This function is called from the DPC context. After
 117  * pointing PTT to the mfw mb, check for events sent by the MCP
 118  * to the driver and ack them. In case a critical event
 119  * detected, it will be handled here, otherwise the work will be
 120  * queued to a sleepable work-queue.
 121  *
 122  * @param p_hwfn - HW function
 123  * @param p_ptt - PTT required for register access
 124  * @return enum _ecore_status_t - ECORE_SUCCESS - operation
 125  * was successul.
 126  */
 127 enum _ecore_status_t ecore_mcp_handle_events(struct ecore_hwfn *p_hwfn,
 128                                              struct ecore_ptt *p_ptt);
 129
 130 /**
 131  * @brief When MFW doesn't get driver pulse for couple of seconds, at some
 132  * threshold before timeout expires, it will generate interrupt
 133  * through a dedicated status block (DPSB - Driver Pulse Status
 134  * Block), which the driver should respond immediately, by
 135  * providing keepalive indication after setting the PTT to the
 136  * driver-MFW mailbox. This function is called directly from the
 137  * DPC upon receiving the DPSB attention.
 138  *
 139  * @param p_hwfn - hw function
 140  * @param p_ptt - PTT required for register access
 141  * @return enum _ecore_status_t - ECORE_SUCCESS - operation
 142  * was successful.
 143  */
 144 enum _ecore_status_t ecore_issue_pulse(struct ecore_hwfn *p_hwfn,
 145                                        struct ecore_ptt *p_ptt);
 146
 147 enum ecore_drv_role {
 148         ECORE_DRV_ROLE_OS,
 149         ECORE_DRV_ROLE_KDUMP,
 150 };
 151
 152 struct ecore_load_req_params {
 153         enum ecore_drv_role drv_role;
 154         u8 timeout_val; /* 1..254, '0' - default value, '255' - no timeout */
 155         bool avoid_eng_reset;
 156         u32 load_code;
 157 };
 158
 159 /**
 160  * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
 161  *        returns whether this PF is the first on the engine/port or function.
 162  *
 163  * @param p_hwfn
 164  * @param p_ptt
 165  * @param p_params
 166  *
 167  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 168  */
 169 enum _ecore_status_t ecore_mcp_load_req(struct ecore_hwfn *p_hwfn,
 170                                         struct ecore_ptt *p_ptt,
 171                                         struct ecore_load_req_params *p_params);
 172
 173 /**
 174  * @brief Sends a UNLOAD_REQ message to the MFW
 175  *
 176  * @param p_hwfn
 177  * @param p_ptt
 178  *
 179  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 180  */
 181 enum _ecore_status_t ecore_mcp_unload_req(struct ecore_hwfn *p_hwfn,
 182                                           struct ecore_ptt *p_ptt);
 183
 184 /**
 185  * @brief Sends a UNLOAD_DONE message to the MFW
 186  *
 187  * @param p_hwfn
 188  * @param p_ptt
 189  *
 190  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 191  */
 192 enum _ecore_status_t ecore_mcp_unload_done(struct ecore_hwfn *p_hwfn,
 193                                            struct ecore_ptt *p_ptt);
 194
 195 /**
 196  * @brief Read the MFW mailbox into Current buffer.
 197  *
 198  * @param p_hwfn
 199  * @param p_ptt
 200  */
 201 void ecore_mcp_read_mb(struct ecore_hwfn *p_hwfn,
 202                        struct ecore_ptt *p_ptt);
 203
 204 /**
 205  * @brief Ack to mfw that driver finished FLR process for VFs
 206  *
 207  * @param p_hwfn
 208  * @param p_ptt
 209  * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
 210  *
 211  * @param return enum _ecore_status_t - ECORE_SUCCESS upon success.
 212  */
 213 enum _ecore_status_t ecore_mcp_ack_vf_flr(struct ecore_hwfn *p_hwfn,
 214                                           struct ecore_ptt *p_ptt,
 215                                           u32 *vfs_to_ack);
 216
 217 /**
 218  * @brief - calls during init to read shmem of all function-related info.
 219  *
 220  * @param p_hwfn
 221  *
 222  * @param return ECORE_SUCCESS upon success.
 223  */
 224 enum _ecore_status_t ecore_mcp_fill_shmem_func_info(struct ecore_hwfn *p_hwfn,
 225                                                     struct ecore_ptt *p_ptt);
 226
 227 /**
 228  * @brief - Reset the MCP using mailbox command.
 229  *
 230  * @param p_hwfn
 231  * @param p_ptt
 232  *
 233  * @param return ECORE_SUCCESS upon success.
 234  */
 235 enum _ecore_status_t ecore_mcp_reset(struct ecore_hwfn *p_hwfn,
 236                                      struct ecore_ptt *p_ptt);
 237
 238 /**
 239  * @brief - Sends an NVM write command request to the MFW with
 240  *          payload.
 241  *
 242  * @param p_hwfn
 243  * @param p_ptt
 244  * @param cmd - Command: Either DRV_MSG_CODE_NVM_WRITE_NVRAM or
 245  *            DRV_MSG_CODE_NVM_PUT_FILE_DATA
 246  * @param param - [0:23] - Offset [24:31] - Size
 247  * @param o_mcp_resp - MCP response
 248  * @param o_mcp_param - MCP response param
 249  * @param i_txn_size -  Buffer size
 250  * @param i_buf - Pointer to the buffer
 251  *
 252  * @param return ECORE_SUCCESS upon success.
 253  */
 254 enum _ecore_status_t ecore_mcp_nvm_wr_cmd(struct ecore_hwfn *p_hwfn,
 255                                           struct ecore_ptt *p_ptt,
 256                                           u32 cmd,
 257                                           u32 param,
 258                                           u32 *o_mcp_resp,
 259                                           u32 *o_mcp_param,
 260                                           u32 i_txn_size,
 261                                           u32 *i_buf);
 262
 263 /**
 264  * @brief - Sends an NVM read command request to the MFW to get
 265  *        a buffer.
 266  *
 267  * @param p_hwfn
 268  * @param p_ptt
 269  * @param cmd - Command: DRV_MSG_CODE_NVM_GET_FILE_DATA or
 270  *            DRV_MSG_CODE_NVM_READ_NVRAM commands
 271  * @param param - [0:23] - Offset [24:31] - Size
 272  * @param o_mcp_resp - MCP response
 273  * @param o_mcp_param - MCP response param
 274  * @param o_txn_size -  Buffer size output
 275  * @param o_buf - Pointer to the buffer returned by the MFW.
 276  *
 277  * @param return ECORE_SUCCESS upon success.
 278  */
 279 enum _ecore_status_t ecore_mcp_nvm_rd_cmd(struct ecore_hwfn *p_hwfn,
 280                                           struct ecore_ptt *p_ptt,
 281                                           u32 cmd,
 282                                           u32 param,
 283                                           u32 *o_mcp_resp,
 284                                           u32 *o_mcp_param,
 285                                           u32 *o_txn_size,
 286                                           u32 *o_buf);
 287
 288 /**
 289  * @brief indicates whether the MFW objects [under mcp_info] are accessible
 290  *
 291  * @param p_hwfn
 292  *
 293  * @return true iff MFW is running and mcp_info is initialized
 294  */
 295 bool ecore_mcp_is_init(struct ecore_hwfn *p_hwfn);
 296
 297 /**
 298  * @brief request MFW to configure MSI-X for a VF
 299  *
 300  * @param p_hwfn
 301  * @param p_ptt
 302  * @param vf_id - absolute inside engine
 303  * @param num_sbs - number of entries to request
 304  *
 305  * @return enum _ecore_status_t
 306  */
 307 enum _ecore_status_t ecore_mcp_config_vf_msix(struct ecore_hwfn *p_hwfn,
 308                                               struct ecore_ptt *p_ptt,
 309                                               u8 vf_id, u8 num);
 310
 311 /**
 312  * @brief - Halt the MCP.
 313  *
 314  * @param p_hwfn
 315  * @param p_ptt
 316  *
 317  * @param return ECORE_SUCCESS upon success.
 318  */
 319 enum _ecore_status_t ecore_mcp_halt(struct ecore_hwfn *p_hwfn,
 320                                     struct ecore_ptt *p_ptt);
 321
 322 /**
 323  * @brief - Wake up the MCP.
 324  *
 325  * @param p_hwfn
 326  * @param p_ptt
 327  *
 328  * @param return ECORE_SUCCESS upon success.
 329  */
 330 enum _ecore_status_t ecore_mcp_resume(struct ecore_hwfn *p_hwfn,
 331                                       struct ecore_ptt *p_ptt);
 332 int __ecore_configure_pf_max_bandwidth(struct ecore_hwfn *p_hwfn,
 333                                        struct ecore_ptt *p_ptt,
 334                                        struct ecore_mcp_link_state *p_link,
 335                                        u8 max_bw);
 336 int __ecore_configure_pf_min_bandwidth(struct ecore_hwfn *p_hwfn,
 337                                        struct ecore_ptt *p_ptt,
 338                                        struct ecore_mcp_link_state *p_link,
 339                                        u8 min_bw);
 340 enum _ecore_status_t ecore_mcp_mask_parities(struct ecore_hwfn *p_hwfn,
 341                                              struct ecore_ptt *p_ptt,
 342                                              u32 mask_parities);
 343 /**
 344  * @brief - Sends crash mdump related info to the MFW.
 345  *
 346  * @param p_hwfn
 347  * @param p_ptt
 348  *
 349  * @param return ECORE_SUCCESS upon success.
 350  */
 351 enum _ecore_status_t ecore_mcp_mdump_set_values(struct ecore_hwfn *p_hwfn,
 352                                                 struct ecore_ptt *p_ptt,
 353                                                 u32 epoch);
 354
 355 /**
 356  * @brief - Triggers a MFW crash dump procedure.
 357  *
 358  * @param p_hwfn
 359  * @param p_ptt
 360  *
 361  * @param return ECORE_SUCCESS upon success.
 362  */
 363 enum _ecore_status_t ecore_mcp_mdump_trigger(struct ecore_hwfn *p_hwfn,
 364                                              struct ecore_ptt *p_ptt);
 365
 366 /**
 367  * @brief - Sets the MFW's max value for the given resource
 368  *
 369  *  @param p_hwfn
 370  *  @param p_ptt
 371  *  @param res_id
 372  *  @param resc_max_val
 373  *  @param p_mcp_resp
 374  *
 375  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 376  */
 377 enum _ecore_status_t
 378 ecore_mcp_set_resc_max_val(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 379                            enum ecore_resources res_id, u32 resc_max_val,
 380                            u32 *p_mcp_resp);
 381
 382 /**
 383  * @brief - Gets the MFW allocation info for the given resource
 384  *
 385  *  @param p_hwfn
 386  *  @param p_ptt
 387  *  @param res_id
 388  *  @param p_mcp_resp
 389  *  @param p_resc_num
 390  *  @param p_resc_start
 391  *
 392  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 393  */
 394 enum _ecore_status_t
 395 ecore_mcp_get_resc_info(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 396                         enum ecore_resources res_id, u32 *p_mcp_resp,
 397                         u32 *p_resc_num, u32 *p_resc_start);
 398
 399 /**
 400  * @brief - Initiates PF FLR
 401  *
 402  * @param p_hwfn
 403  * @param p_ptt
 404  *
 405  * @param return ECORE_SUCCESS upon success.
 406  */
 407 enum _ecore_status_t ecore_mcp_initiate_pf_flr(struct ecore_hwfn *p_hwfn,
 408                                                struct ecore_ptt *p_ptt);
 409
 410 #define ECORE_MCP_RESC_LOCK_MIN_VAL     RESOURCE_DUMP /* 0 */
 411 #define ECORE_MCP_RESC_LOCK_MAX_VAL     31
 412
 413 enum ecore_resc_lock {
 414         ECORE_RESC_LOCK_DBG_DUMP = ECORE_MCP_RESC_LOCK_MIN_VAL,
 415         /* Locks that the MFW is aware of should be added here downwards */
 416
 417         /* Ecore only locks should be added here upwards */
 418         ECORE_RESC_LOCK_RESC_ALLOC = ECORE_MCP_RESC_LOCK_MAX_VAL
 419 };
 420
 421 struct ecore_resc_lock_params {
 422         /* Resource number [valid values are 0..31] */
 423         u8 resource;
 424
 425         /* Lock timeout value in seconds [default, none or 1..254] */
 426         u8 timeout;
 427 #define ECORE_MCP_RESC_LOCK_TO_DEFAULT  0
 428 #define ECORE_MCP_RESC_LOCK_TO_NONE     255
 429
 430         /* Number of times to retry locking */
 431         u8 retry_num;
 432
 433         /* The interval in usec between retries */
 434         u16 retry_interval;
 435
 436         /* Use sleep or delay between retries */
 437         bool sleep_b4_retry;
 438
 439         /* Will be set as true if the resource is free and granted */
 440         bool b_granted;
 441
 442         /* Will be filled with the resource owner.
 443          * [0..15 = PF0-15, 16 = MFW, 17 = diag over serial]
 444          */
 445         u8 owner;
 446 };
 447
 448 /**
 449  * @brief Acquires MFW generic resource lock
 450  *
 451  *  @param p_hwfn
 452  *  @param p_ptt
 453  *  @param p_params
 454  *
 455  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 456  */
 457 enum _ecore_status_t
 458 ecore_mcp_resc_lock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 459                     struct ecore_resc_lock_params *p_params);
 460
 461 struct ecore_resc_unlock_params {
 462         /* Resource number [valid values are 0..31] */
 463         u8 resource;
 464
 465         /* Allow to release a resource even if belongs to another PF */
 466         bool b_force;
 467
 468         /* Will be set as true if the resource is released */
 469         bool b_released;
 470 };
 471
 472 /**
 473  * @brief Releases MFW generic resource lock
 474  *
 475  *  @param p_hwfn
 476  *  @param p_ptt
 477  *  @param p_params
 478  *
 479  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 480  */
 481 enum _ecore_status_t
 482 ecore_mcp_resc_unlock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 483                       struct ecore_resc_unlock_params *p_params);
 484
 485 #endif /* __ECORE_MCP_H__ */