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

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (c) 2016 - 2018 Cavium Inc.
   3  * All rights reserved.
   4  * www.cavium.com
   5  */
   6
   7 #ifndef __ECORE_MCP_H__
   8 #define __ECORE_MCP_H__
   9
  10 #include "bcm_osal.h"
  11 #include "mcp_public.h"
  12 #include "ecore.h"
  13 #include "ecore_mcp_api.h"
  14 #include "ecore_dev_api.h"
  15
  16 /* Using hwfn number (and not pf_num) is required since in CMT mode,
  17  * same pf_num may be used by two different hwfn
  18  * TODO - this shouldn't really be in .h file, but until all fields
  19  * required during hw-init will be placed in their correct place in shmem
  20  * we need it in ecore_dev.c [for readin the nvram reflection in shmem].
  21  */
  22 #define MCP_PF_ID_BY_REL(p_hwfn, rel_pfid) (ECORE_IS_BB((p_hwfn)->p_dev) ? \
  23                                             ((rel_pfid) | \
  24                                              ((p_hwfn)->abs_pf_id & 1) << 3) : \
  25                                              rel_pfid)
  26 #define MCP_PF_ID(p_hwfn)       MCP_PF_ID_BY_REL(p_hwfn, (p_hwfn)->rel_pf_id)
  27
  28 struct ecore_mcp_info {
  29         /* List for mailbox commands which were sent and wait for a response */
  30         osal_list_t cmd_list;
  31
  32         /* Spinlock used for protecting the access to the mailbox commands list
  33          * and the sending of the commands.
  34          */
  35         osal_spinlock_t cmd_lock;
  36
  37         /* Flag to indicate whether sending a MFW mailbox command is blocked */
  38         bool b_block_cmd;
  39
  40         /* Spinlock used for syncing SW link-changes and link-changes
  41          * originating from attention context.
  42          */
  43         osal_spinlock_t link_lock;
  44
  45         /* Address of the MCP public area */
  46         u32 public_base;
  47         /* Address of the driver mailbox */
  48         u32 drv_mb_addr;
  49         /* Address of the MFW mailbox */
  50         u32 mfw_mb_addr;
  51         /* Address of the port configuration (link) */
  52         u32 port_addr;
  53
  54         /* Current driver mailbox sequence */
  55         u16 drv_mb_seq;
  56         /* Current driver pulse sequence */
  57         u16 drv_pulse_seq;
  58
  59         struct ecore_mcp_link_params       link_input;
  60         struct ecore_mcp_link_state        link_output;
  61         struct ecore_mcp_link_capabilities link_capabilities;
  62
  63         struct ecore_mcp_function_info     func_info;
  64
  65         u8 *mfw_mb_cur;
  66         u8 *mfw_mb_shadow;
  67         u16 mfw_mb_length;
  68         u32 mcp_hist;
  69
  70         /* Capabilties negotiated with the MFW */
  71         u32 capabilities;
  72 };
  73
  74 struct ecore_mcp_mb_params {
  75         u32 cmd;
  76         u32 param;
  77         void *p_data_src;
  78         void *p_data_dst;
  79         u32 mcp_resp;
  80         u32 mcp_param;
  81         u8 data_src_size;
  82         u8 data_dst_size;
  83         u32 flags;
  84 #define ECORE_MB_FLAG_CAN_SLEEP         (0x1 << 0)
  85 #define ECORE_MB_FLAG_AVOID_BLOCK       (0x1 << 1)
  86 #define ECORE_MB_FLAGS_IS_SET(params, flag) \
  87         ((params) != OSAL_NULL && ((params)->flags & ECORE_MB_FLAG_##flag))
  88 };
  89
  90 struct ecore_drv_tlv_hdr {
  91         u8 tlv_type;    /* According to the enum below */
  92         u8 tlv_length;  /* In dwords - not including this header */
  93         u8 tlv_reserved;
  94 #define ECORE_DRV_TLV_FLAGS_CHANGED 0x01
  95         u8 tlv_flags;
  96 };
  97
  98 /**
  99  * @brief Initialize the interface with the MCP
 100  *
 101  * @param p_hwfn - HW func
 102  * @param p_ptt - PTT required for register access
 103  *
 104  * @return enum _ecore_status_t
 105  */
 106 enum _ecore_status_t ecore_mcp_cmd_init(struct ecore_hwfn *p_hwfn,
 107                                         struct ecore_ptt *p_ptt);
 108
 109 /**
 110  * @brief Initialize the port interface with the MCP
 111  *
 112  * @param p_hwfn
 113  * @param p_ptt
 114  * Can only be called after `num_ports_in_engine' is set
 115  */
 116 void ecore_mcp_cmd_port_init(struct ecore_hwfn *p_hwfn,
 117                              struct ecore_ptt *p_ptt);
 118 /**
 119  * @brief Releases resources allocated during the init process.
 120  *
 121  * @param p_hwfn - HW func
 122  * @param p_ptt - PTT required for register access
 123  *
 124  * @return enum _ecore_status_t
 125  */
 126
 127 enum _ecore_status_t ecore_mcp_free(struct ecore_hwfn *p_hwfn);
 128
 129 /**
 130  * @brief This function is called from the DPC context. After
 131  * pointing PTT to the mfw mb, check for events sent by the MCP
 132  * to the driver and ack them. In case a critical event
 133  * detected, it will be handled here, otherwise the work will be
 134  * queued to a sleepable work-queue.
 135  *
 136  * @param p_hwfn - HW function
 137  * @param p_ptt - PTT required for register access
 138  * @return enum _ecore_status_t - ECORE_SUCCESS - operation
 139  * was successul.
 140  */
 141 enum _ecore_status_t ecore_mcp_handle_events(struct ecore_hwfn *p_hwfn,
 142                                              struct ecore_ptt *p_ptt);
 143
 144 /**
 145  * @brief When MFW doesn't get driver pulse for couple of seconds, at some
 146  * threshold before timeout expires, it will generate interrupt
 147  * through a dedicated status block (DPSB - Driver Pulse Status
 148  * Block), which the driver should respond immediately, by
 149  * providing keepalive indication after setting the PTT to the
 150  * driver-MFW mailbox. This function is called directly from the
 151  * DPC upon receiving the DPSB attention.
 152  *
 153  * @param p_hwfn - hw function
 154  * @param p_ptt - PTT required for register access
 155  * @return enum _ecore_status_t - ECORE_SUCCESS - operation
 156  * was successful.
 157  */
 158 enum _ecore_status_t ecore_issue_pulse(struct ecore_hwfn *p_hwfn,
 159                                        struct ecore_ptt *p_ptt);
 160
 161 enum ecore_drv_role {
 162         ECORE_DRV_ROLE_OS,
 163         ECORE_DRV_ROLE_KDUMP,
 164 };
 165
 166 struct ecore_load_req_params {
 167         /* Input params */
 168         enum ecore_drv_role drv_role;
 169         u8 timeout_val; /* 1..254, '0' - default value, '255' - no timeout */
 170         bool avoid_eng_reset;
 171         enum ecore_override_force_load override_force_load;
 172
 173         /* Output params */
 174         u32 load_code;
 175 };
 176
 177 /**
 178  * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
 179  *        returns whether this PF is the first on the engine/port or function.
 180  *
 181  * @param p_hwfn
 182  * @param p_ptt
 183  * @param p_params
 184  *
 185  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 186  */
 187 enum _ecore_status_t ecore_mcp_load_req(struct ecore_hwfn *p_hwfn,
 188                                         struct ecore_ptt *p_ptt,
 189                                         struct ecore_load_req_params *p_params);
 190
 191 /**
 192  * @brief Sends a LOAD_DONE message to the MFW
 193  *
 194  * @param p_hwfn
 195  * @param p_ptt
 196  *
 197  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 198  */
 199 enum _ecore_status_t ecore_mcp_load_done(struct ecore_hwfn *p_hwfn,
 200                                          struct ecore_ptt *p_ptt);
 201
 202 /**
 203  * @brief Sends a UNLOAD_REQ message to the MFW
 204  *
 205  * @param p_hwfn
 206  * @param p_ptt
 207  *
 208  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 209  */
 210 enum _ecore_status_t ecore_mcp_unload_req(struct ecore_hwfn *p_hwfn,
 211                                           struct ecore_ptt *p_ptt);
 212
 213 /**
 214  * @brief Sends a UNLOAD_DONE message to the MFW
 215  *
 216  * @param p_hwfn
 217  * @param p_ptt
 218  *
 219  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 220  */
 221 enum _ecore_status_t ecore_mcp_unload_done(struct ecore_hwfn *p_hwfn,
 222                                            struct ecore_ptt *p_ptt);
 223
 224 /**
 225  * @brief Read the MFW mailbox into Current buffer.
 226  *
 227  * @param p_hwfn
 228  * @param p_ptt
 229  */
 230 void ecore_mcp_read_mb(struct ecore_hwfn *p_hwfn,
 231                        struct ecore_ptt *p_ptt);
 232
 233 /**
 234  * @brief Ack to mfw that driver finished FLR process for VFs
 235  *
 236  * @param p_hwfn
 237  * @param p_ptt
 238  * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
 239  *
 240  * @param return enum _ecore_status_t - ECORE_SUCCESS upon success.
 241  */
 242 enum _ecore_status_t ecore_mcp_ack_vf_flr(struct ecore_hwfn *p_hwfn,
 243                                           struct ecore_ptt *p_ptt,
 244                                           u32 *vfs_to_ack);
 245
 246 /**
 247  * @brief - calls during init to read shmem of all function-related info.
 248  *
 249  * @param p_hwfn
 250  *
 251  * @param return ECORE_SUCCESS upon success.
 252  */
 253 enum _ecore_status_t ecore_mcp_fill_shmem_func_info(struct ecore_hwfn *p_hwfn,
 254                                                     struct ecore_ptt *p_ptt);
 255
 256 /**
 257  * @brief - Reset the MCP using mailbox command.
 258  *
 259  * @param p_hwfn
 260  * @param p_ptt
 261  *
 262  * @param return ECORE_SUCCESS upon success.
 263  */
 264 enum _ecore_status_t ecore_mcp_reset(struct ecore_hwfn *p_hwfn,
 265                                      struct ecore_ptt *p_ptt);
 266
 267 /**
 268  * @brief indicates whether the MFW objects [under mcp_info] are accessible
 269  *
 270  * @param p_hwfn
 271  *
 272  * @return true iff MFW is running and mcp_info is initialized
 273  */
 274 bool ecore_mcp_is_init(struct ecore_hwfn *p_hwfn);
 275
 276 /**
 277  * @brief request MFW to configure MSI-X for a VF
 278  *
 279  * @param p_hwfn
 280  * @param p_ptt
 281  * @param vf_id - absolute inside engine
 282  * @param num_sbs - number of entries to request
 283  *
 284  * @return enum _ecore_status_t
 285  */
 286 enum _ecore_status_t ecore_mcp_config_vf_msix(struct ecore_hwfn *p_hwfn,
 287                                               struct ecore_ptt *p_ptt,
 288                                               u8 vf_id, u8 num);
 289
 290 /**
 291  * @brief - Halt the MCP.
 292  *
 293  * @param p_hwfn
 294  * @param p_ptt
 295  *
 296  * @param return ECORE_SUCCESS upon success.
 297  */
 298 enum _ecore_status_t ecore_mcp_halt(struct ecore_hwfn *p_hwfn,
 299                                     struct ecore_ptt *p_ptt);
 300
 301 /**
 302  * @brief - Wake up the MCP.
 303  *
 304  * @param p_hwfn
 305  * @param p_ptt
 306  *
 307  * @param return ECORE_SUCCESS upon success.
 308  */
 309 enum _ecore_status_t ecore_mcp_resume(struct ecore_hwfn *p_hwfn,
 310                                       struct ecore_ptt *p_ptt);
 311 int __ecore_configure_pf_max_bandwidth(struct ecore_hwfn *p_hwfn,
 312                                        struct ecore_ptt *p_ptt,
 313                                        struct ecore_mcp_link_state *p_link,
 314                                        u8 max_bw);
 315 int __ecore_configure_pf_min_bandwidth(struct ecore_hwfn *p_hwfn,
 316                                        struct ecore_ptt *p_ptt,
 317                                        struct ecore_mcp_link_state *p_link,
 318                                        u8 min_bw);
 319 enum _ecore_status_t ecore_mcp_mask_parities(struct ecore_hwfn *p_hwfn,
 320                                              struct ecore_ptt *p_ptt,
 321                                              u32 mask_parities);
 322 /**
 323  * @brief - Sends crash mdump related info to the MFW.
 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_mdump_set_values(struct ecore_hwfn *p_hwfn,
 331                                                 struct ecore_ptt *p_ptt,
 332                                                 u32 epoch);
 333
 334 /**
 335  * @brief - Triggers a MFW crash dump procedure.
 336  *
 337  * @param p_hwfn
 338  * @param p_ptt
 339  * @param epoch
 340  *
 341  * @param return ECORE_SUCCESS upon success.
 342  */
 343 enum _ecore_status_t ecore_mcp_mdump_trigger(struct ecore_hwfn *p_hwfn,
 344                                              struct ecore_ptt *p_ptt);
 345
 346 struct ecore_mdump_retain_data {
 347         u32 valid;
 348         u32 epoch;
 349         u32 pf;
 350         u32 status;
 351 };
 352
 353 /**
 354  * @brief - Gets the mdump retained data from the MFW.
 355  *
 356  * @param p_hwfn
 357  * @param p_ptt
 358  * @param p_mdump_retain
 359  *
 360  * @param return ECORE_SUCCESS upon success.
 361  */
 362 enum _ecore_status_t
 363 ecore_mcp_mdump_get_retain(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 364                            struct ecore_mdump_retain_data *p_mdump_retain);
 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         /* A dummy value to be used for auxiliary functions in need of
 421          * returning an 'error' value.
 422          */
 423         ECORE_RESC_LOCK_RESC_INVALID,
 424 };
 425
 426 struct ecore_resc_lock_params {
 427         /* Resource number [valid values are 0..31] */
 428         u8 resource;
 429
 430         /* Lock timeout value in seconds [default, none or 1..254] */
 431         u8 timeout;
 432 #define ECORE_MCP_RESC_LOCK_TO_DEFAULT  0
 433 #define ECORE_MCP_RESC_LOCK_TO_NONE     255
 434
 435         /* Number of times to retry locking */
 436         u8 retry_num;
 437 #define ECORE_MCP_RESC_LOCK_RETRY_CNT_DFLT      10
 438
 439         /* The interval in usec between retries */
 440         u16 retry_interval;
 441 #define ECORE_MCP_RESC_LOCK_RETRY_VAL_DFLT      10000
 442
 443         /* Use sleep or delay between retries */
 444         bool sleep_b4_retry;
 445
 446         /* Will be set as true if the resource is free and granted */
 447         bool b_granted;
 448
 449         /* Will be filled with the resource owner.
 450          * [0..15 = PF0-15, 16 = MFW, 17 = diag over serial]
 451          */
 452         u8 owner;
 453 };
 454
 455 /**
 456  * @brief Acquires MFW generic resource lock
 457  *
 458  *  @param p_hwfn
 459  *  @param p_ptt
 460  *  @param p_params
 461  *
 462  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 463  */
 464 enum _ecore_status_t
 465 ecore_mcp_resc_lock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 466                     struct ecore_resc_lock_params *p_params);
 467
 468 struct ecore_resc_unlock_params {
 469         /* Resource number [valid values are 0..31] */
 470         u8 resource;
 471
 472         /* Allow to release a resource even if belongs to another PF */
 473         bool b_force;
 474
 475         /* Will be set as true if the resource is released */
 476         bool b_released;
 477 };
 478
 479 /**
 480  * @brief Releases MFW generic resource lock
 481  *
 482  *  @param p_hwfn
 483  *  @param p_ptt
 484  *  @param p_params
 485  *
 486  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 487  */
 488 enum _ecore_status_t
 489 ecore_mcp_resc_unlock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 490                       struct ecore_resc_unlock_params *p_params);
 491
 492 /**
 493  * @brief - default initialization for lock/unlock resource structs
 494  *
 495  * @param p_lock - lock params struct to be initialized; Can be OSAL_NULL
 496  * @param p_unlock - unlock params struct to be initialized; Can be OSAL_NULL
 497  * @param resource - the requested resource
 498  * @paral b_is_permanent - disable retries & aging when set
 499  */
 500 void ecore_mcp_resc_lock_default_init(struct ecore_resc_lock_params *p_lock,
 501                                       struct ecore_resc_unlock_params *p_unlock,
 502                                       enum ecore_resc_lock resource,
 503                                       bool b_is_permanent);
 504
 505 /**
 506  * @brief Learn of supported MFW features; To be done during early init
 507  *
 508  * @param p_hwfn
 509  * @param p_ptt
 510  */
 511 enum _ecore_status_t ecore_mcp_get_capabilities(struct ecore_hwfn *p_hwfn,
 512                                                 struct ecore_ptt *p_ptt);
 513
 514 /**
 515  * @brief Inform MFW of set of features supported by driver. Should be done
 516  * inside the contet of the LOAD_REQ.
 517  *
 518  * @param p_hwfn
 519  * @param p_ptt
 520  */
 521 enum _ecore_status_t ecore_mcp_set_capabilities(struct ecore_hwfn *p_hwfn,
 522                                                 struct ecore_ptt *p_ptt);
 523
 524 enum ecore_mcp_drv_attr_cmd {
 525         ECORE_MCP_DRV_ATTR_CMD_READ,
 526         ECORE_MCP_DRV_ATTR_CMD_WRITE,
 527         ECORE_MCP_DRV_ATTR_CMD_READ_CLEAR,
 528         ECORE_MCP_DRV_ATTR_CMD_CLEAR,
 529 };
 530
 531 struct ecore_mcp_drv_attr {
 532         enum ecore_mcp_drv_attr_cmd attr_cmd;
 533         u32 attr_num;
 534
 535         /* R/RC - will be set with the read value
 536          * W - should hold the required value to be written
 537          * C - DC
 538          */
 539         u32 val;
 540
 541         /* W - mask/offset to be applied on the given value
 542          * R/RC/C - DC
 543          */
 544         u32 mask;
 545         u32 offset;
 546 };
 547
 548 /**
 549  * @brief Handle the drivers' attributes that are kept by the MFW.
 550  *
 551  * @param p_hwfn
 552  * @param p_ptt
 553  * @param p_drv_attr
 554  */
 555 enum _ecore_status_t
 556 ecore_mcp_drv_attribute(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 557                         struct ecore_mcp_drv_attr *p_drv_attr);
 558
 559 /**
 560  * @brief Read ufp config from the shared memory.
 561  *
 562  * @param p_hwfn
 563  * @param p_ptt
 564  */
 565 void
 566 ecore_mcp_read_ufp_config(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
 567
 568 void ecore_mcp_wol_wr(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 569                       u32 offset, u32 val);
 570
 571 /**
 572  * @brief Get the engine affinity configuration.
 573  *
 574  * @param p_hwfn
 575  * @param p_ptt
 576  */
 577 enum _ecore_status_t ecore_mcp_get_engine_config(struct ecore_hwfn *p_hwfn,
 578                                                  struct ecore_ptt *p_ptt);
 579
 580 /**
 581  * @brief Get the PPFID bitmap.
 582  *
 583  * @param p_hwfn
 584  * @param p_ptt
 585  */
 586 enum _ecore_status_t ecore_mcp_get_ppfid_bitmap(struct ecore_hwfn *p_hwfn,
 587                                                 struct ecore_ptt *p_ptt);
 588
 589 #endif /* __ECORE_MCP_H__ */