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 #define MFW_PORT(_p_hwfn)       ((_p_hwfn)->abs_pf_id % \
  29                                  ecore_device_num_ports((_p_hwfn)->p_dev))
  30
  31 struct ecore_mcp_info {
  32         /* List for mailbox commands which were sent and wait for a response */
  33         osal_list_t cmd_list;
  34
  35         /* Spinlock used for protecting the access to the mailbox commands list
  36          * and the sending of the commands.
  37          */
  38         osal_spinlock_t cmd_lock;
  39
  40         /* Flag to indicate whether sending a MFW mailbox command is blocked */
  41         bool b_block_cmd;
  42
  43         /* Spinlock used for syncing SW link-changes and link-changes
  44          * originating from attention context.
  45          */
  46         osal_spinlock_t link_lock;
  47
  48         /* Address of the MCP public area */
  49         u32 public_base;
  50         /* Address of the driver mailbox */
  51         u32 drv_mb_addr;
  52         /* Address of the MFW mailbox */
  53         u32 mfw_mb_addr;
  54         /* Address of the port configuration (link) */
  55         u32 port_addr;
  56
  57         /* Current driver mailbox sequence */
  58         u16 drv_mb_seq;
  59         /* Current driver pulse sequence */
  60         u16 drv_pulse_seq;
  61
  62         struct ecore_mcp_link_params       link_input;
  63         struct ecore_mcp_link_state        link_output;
  64         struct ecore_mcp_link_capabilities link_capabilities;
  65
  66         struct ecore_mcp_function_info     func_info;
  67
  68         u8 *mfw_mb_cur;
  69         u8 *mfw_mb_shadow;
  70         u16 mfw_mb_length;
  71         u32 mcp_hist;
  72
  73         /* Capabilties negotiated with the MFW */
  74         u32 capabilities;
  75 };
  76
  77 struct ecore_mcp_mb_params {
  78         u32 cmd;
  79         u32 param;
  80         void *p_data_src;
  81         u8 data_src_size;
  82         void *p_data_dst;
  83         u8 data_dst_size;
  84         u32 mcp_resp;
  85         u32 mcp_param;
  86 };
  87
  88 struct ecore_drv_tlv_hdr {
  89         u8 tlv_type;    /* According to the enum below */
  90         u8 tlv_length;  /* In dwords - not including this header */
  91         u8 tlv_reserved;
  92 #define ECORE_DRV_TLV_FLAGS_CHANGED 0x01
  93         u8 tlv_flags;
  94 };
  95
  96 /**
  97  * @brief Initialize the interface with the MCP
  98  *
  99  * @param p_hwfn - HW func
 100  * @param p_ptt - PTT required for register access
 101  *
 102  * @return enum _ecore_status_t
 103  */
 104 enum _ecore_status_t ecore_mcp_cmd_init(struct ecore_hwfn *p_hwfn,
 105                                         struct ecore_ptt *p_ptt);
 106
 107 /**
 108  * @brief Initialize the port interface with the MCP
 109  *
 110  * @param p_hwfn
 111  * @param p_ptt
 112  * Can only be called after `num_ports_in_engine' is set
 113  */
 114 void ecore_mcp_cmd_port_init(struct ecore_hwfn *p_hwfn,
 115                              struct ecore_ptt *p_ptt);
 116 /**
 117  * @brief Releases resources allocated during the init process.
 118  *
 119  * @param p_hwfn - HW func
 120  * @param p_ptt - PTT required for register access
 121  *
 122  * @return enum _ecore_status_t
 123  */
 124
 125 enum _ecore_status_t ecore_mcp_free(struct ecore_hwfn *p_hwfn);
 126
 127 /**
 128  * @brief This function is called from the DPC context. After
 129  * pointing PTT to the mfw mb, check for events sent by the MCP
 130  * to the driver and ack them. In case a critical event
 131  * detected, it will be handled here, otherwise the work will be
 132  * queued to a sleepable work-queue.
 133  *
 134  * @param p_hwfn - HW function
 135  * @param p_ptt - PTT required for register access
 136  * @return enum _ecore_status_t - ECORE_SUCCESS - operation
 137  * was successul.
 138  */
 139 enum _ecore_status_t ecore_mcp_handle_events(struct ecore_hwfn *p_hwfn,
 140                                              struct ecore_ptt *p_ptt);
 141
 142 /**
 143  * @brief When MFW doesn't get driver pulse for couple of seconds, at some
 144  * threshold before timeout expires, it will generate interrupt
 145  * through a dedicated status block (DPSB - Driver Pulse Status
 146  * Block), which the driver should respond immediately, by
 147  * providing keepalive indication after setting the PTT to the
 148  * driver-MFW mailbox. This function is called directly from the
 149  * DPC upon receiving the DPSB attention.
 150  *
 151  * @param p_hwfn - hw function
 152  * @param p_ptt - PTT required for register access
 153  * @return enum _ecore_status_t - ECORE_SUCCESS - operation
 154  * was successful.
 155  */
 156 enum _ecore_status_t ecore_issue_pulse(struct ecore_hwfn *p_hwfn,
 157                                        struct ecore_ptt *p_ptt);
 158
 159 enum ecore_drv_role {
 160         ECORE_DRV_ROLE_OS,
 161         ECORE_DRV_ROLE_KDUMP,
 162 };
 163
 164 struct ecore_load_req_params {
 165         /* Input params */
 166         enum ecore_drv_role drv_role;
 167         u8 timeout_val; /* 1..254, '0' - default value, '255' - no timeout */
 168         bool avoid_eng_reset;
 169         enum ecore_override_force_load override_force_load;
 170
 171         /* Output params */
 172         u32 load_code;
 173 };
 174
 175 /**
 176  * @brief Sends a LOAD_REQ to the MFW, and in case the operation succeeds,
 177  *        returns whether this PF is the first on the engine/port or function.
 178  *
 179  * @param p_hwfn
 180  * @param p_ptt
 181  * @param p_params
 182  *
 183  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 184  */
 185 enum _ecore_status_t ecore_mcp_load_req(struct ecore_hwfn *p_hwfn,
 186                                         struct ecore_ptt *p_ptt,
 187                                         struct ecore_load_req_params *p_params);
 188
 189 /**
 190  * @brief Sends a LOAD_DONE message to the MFW
 191  *
 192  * @param p_hwfn
 193  * @param p_ptt
 194  *
 195  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 196  */
 197 enum _ecore_status_t ecore_mcp_load_done(struct ecore_hwfn *p_hwfn,
 198                                          struct ecore_ptt *p_ptt);
 199
 200 /**
 201  * @brief Sends a UNLOAD_REQ message to the MFW
 202  *
 203  * @param p_hwfn
 204  * @param p_ptt
 205  *
 206  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 207  */
 208 enum _ecore_status_t ecore_mcp_unload_req(struct ecore_hwfn *p_hwfn,
 209                                           struct ecore_ptt *p_ptt);
 210
 211 /**
 212  * @brief Sends a UNLOAD_DONE message to the MFW
 213  *
 214  * @param p_hwfn
 215  * @param p_ptt
 216  *
 217  * @return enum _ecore_status_t - ECORE_SUCCESS - Operation was successful.
 218  */
 219 enum _ecore_status_t ecore_mcp_unload_done(struct ecore_hwfn *p_hwfn,
 220                                            struct ecore_ptt *p_ptt);
 221
 222 /**
 223  * @brief Read the MFW mailbox into Current buffer.
 224  *
 225  * @param p_hwfn
 226  * @param p_ptt
 227  */
 228 void ecore_mcp_read_mb(struct ecore_hwfn *p_hwfn,
 229                        struct ecore_ptt *p_ptt);
 230
 231 /**
 232  * @brief Ack to mfw that driver finished FLR process for VFs
 233  *
 234  * @param p_hwfn
 235  * @param p_ptt
 236  * @param vfs_to_ack - bit mask of all engine VFs for which the PF acks.
 237  *
 238  * @param return enum _ecore_status_t - ECORE_SUCCESS upon success.
 239  */
 240 enum _ecore_status_t ecore_mcp_ack_vf_flr(struct ecore_hwfn *p_hwfn,
 241                                           struct ecore_ptt *p_ptt,
 242                                           u32 *vfs_to_ack);
 243
 244 /**
 245  * @brief - calls during init to read shmem of all function-related info.
 246  *
 247  * @param p_hwfn
 248  *
 249  * @param return ECORE_SUCCESS upon success.
 250  */
 251 enum _ecore_status_t ecore_mcp_fill_shmem_func_info(struct ecore_hwfn *p_hwfn,
 252                                                     struct ecore_ptt *p_ptt);
 253
 254 /**
 255  * @brief - Reset the MCP using mailbox command.
 256  *
 257  * @param p_hwfn
 258  * @param p_ptt
 259  *
 260  * @param return ECORE_SUCCESS upon success.
 261  */
 262 enum _ecore_status_t ecore_mcp_reset(struct ecore_hwfn *p_hwfn,
 263                                      struct ecore_ptt *p_ptt);
 264
 265 /**
 266  * @brief indicates whether the MFW objects [under mcp_info] are accessible
 267  *
 268  * @param p_hwfn
 269  *
 270  * @return true iff MFW is running and mcp_info is initialized
 271  */
 272 bool ecore_mcp_is_init(struct ecore_hwfn *p_hwfn);
 273
 274 /**
 275  * @brief request MFW to configure MSI-X for a VF
 276  *
 277  * @param p_hwfn
 278  * @param p_ptt
 279  * @param vf_id - absolute inside engine
 280  * @param num_sbs - number of entries to request
 281  *
 282  * @return enum _ecore_status_t
 283  */
 284 enum _ecore_status_t ecore_mcp_config_vf_msix(struct ecore_hwfn *p_hwfn,
 285                                               struct ecore_ptt *p_ptt,
 286                                               u8 vf_id, u8 num);
 287
 288 /**
 289  * @brief - Halt the MCP.
 290  *
 291  * @param p_hwfn
 292  * @param p_ptt
 293  *
 294  * @param return ECORE_SUCCESS upon success.
 295  */
 296 enum _ecore_status_t ecore_mcp_halt(struct ecore_hwfn *p_hwfn,
 297                                     struct ecore_ptt *p_ptt);
 298
 299 /**
 300  * @brief - Wake up the MCP.
 301  *
 302  * @param p_hwfn
 303  * @param p_ptt
 304  *
 305  * @param return ECORE_SUCCESS upon success.
 306  */
 307 enum _ecore_status_t ecore_mcp_resume(struct ecore_hwfn *p_hwfn,
 308                                       struct ecore_ptt *p_ptt);
 309 int __ecore_configure_pf_max_bandwidth(struct ecore_hwfn *p_hwfn,
 310                                        struct ecore_ptt *p_ptt,
 311                                        struct ecore_mcp_link_state *p_link,
 312                                        u8 max_bw);
 313 int __ecore_configure_pf_min_bandwidth(struct ecore_hwfn *p_hwfn,
 314                                        struct ecore_ptt *p_ptt,
 315                                        struct ecore_mcp_link_state *p_link,
 316                                        u8 min_bw);
 317 enum _ecore_status_t ecore_mcp_mask_parities(struct ecore_hwfn *p_hwfn,
 318                                              struct ecore_ptt *p_ptt,
 319                                              u32 mask_parities);
 320 /**
 321  * @brief - Sends crash mdump related info to the MFW.
 322  *
 323  * @param p_hwfn
 324  * @param p_ptt
 325  *
 326  * @param return ECORE_SUCCESS upon success.
 327  */
 328 enum _ecore_status_t ecore_mcp_mdump_set_values(struct ecore_hwfn *p_hwfn,
 329                                                 struct ecore_ptt *p_ptt,
 330                                                 u32 epoch);
 331
 332 /**
 333  * @brief - Triggers a MFW crash dump procedure.
 334  *
 335  * @param p_hwfn
 336  * @param p_ptt
 337  * @param epoch
 338  *
 339  * @param return ECORE_SUCCESS upon success.
 340  */
 341 enum _ecore_status_t ecore_mcp_mdump_trigger(struct ecore_hwfn *p_hwfn,
 342                                              struct ecore_ptt *p_ptt);
 343
 344 struct ecore_mdump_retain_data {
 345         u32 valid;
 346         u32 epoch;
 347         u32 pf;
 348         u32 status;
 349 };
 350
 351 /**
 352  * @brief - Gets the mdump retained data from the MFW.
 353  *
 354  * @param p_hwfn
 355  * @param p_ptt
 356  * @param p_mdump_retain
 357  *
 358  * @param return ECORE_SUCCESS upon success.
 359  */
 360 enum _ecore_status_t
 361 ecore_mcp_mdump_get_retain(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 362                            struct ecore_mdump_retain_data *p_mdump_retain);
 363
 364 /**
 365  * @brief - Sets the MFW's max value for the given resource
 366  *
 367  *  @param p_hwfn
 368  *  @param p_ptt
 369  *  @param res_id
 370  *  @param resc_max_val
 371  *  @param p_mcp_resp
 372  *
 373  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 374  */
 375 enum _ecore_status_t
 376 ecore_mcp_set_resc_max_val(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 377                            enum ecore_resources res_id, u32 resc_max_val,
 378                            u32 *p_mcp_resp);
 379
 380 /**
 381  * @brief - Gets the MFW allocation info for the given resource
 382  *
 383  *  @param p_hwfn
 384  *  @param p_ptt
 385  *  @param res_id
 386  *  @param p_mcp_resp
 387  *  @param p_resc_num
 388  *  @param p_resc_start
 389  *
 390  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 391  */
 392 enum _ecore_status_t
 393 ecore_mcp_get_resc_info(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 394                         enum ecore_resources res_id, u32 *p_mcp_resp,
 395                         u32 *p_resc_num, u32 *p_resc_start);
 396
 397 /**
 398  * @brief - Initiates PF FLR
 399  *
 400  * @param p_hwfn
 401  * @param p_ptt
 402  *
 403  * @param return ECORE_SUCCESS upon success.
 404  */
 405 enum _ecore_status_t ecore_mcp_initiate_pf_flr(struct ecore_hwfn *p_hwfn,
 406                                                struct ecore_ptt *p_ptt);
 407
 408 #define ECORE_MCP_RESC_LOCK_MIN_VAL     RESOURCE_DUMP /* 0 */
 409 #define ECORE_MCP_RESC_LOCK_MAX_VAL     31
 410
 411 enum ecore_resc_lock {
 412         ECORE_RESC_LOCK_DBG_DUMP = ECORE_MCP_RESC_LOCK_MIN_VAL,
 413         /* Locks that the MFW is aware of should be added here downwards */
 414
 415         /* Ecore only locks should be added here upwards */
 416         ECORE_RESC_LOCK_RESC_ALLOC = ECORE_MCP_RESC_LOCK_MAX_VAL,
 417
 418         /* A dummy value to be used for auxiliary functions in need of
 419          * returning an 'error' value.
 420          */
 421         ECORE_RESC_LOCK_RESC_INVALID,
 422 };
 423
 424 struct ecore_resc_lock_params {
 425         /* Resource number [valid values are 0..31] */
 426         u8 resource;
 427
 428         /* Lock timeout value in seconds [default, none or 1..254] */
 429         u8 timeout;
 430 #define ECORE_MCP_RESC_LOCK_TO_DEFAULT  0
 431 #define ECORE_MCP_RESC_LOCK_TO_NONE     255
 432
 433         /* Number of times to retry locking */
 434         u8 retry_num;
 435 #define ECORE_MCP_RESC_LOCK_RETRY_CNT_DFLT      10
 436
 437         /* The interval in usec between retries */
 438         u16 retry_interval;
 439 #define ECORE_MCP_RESC_LOCK_RETRY_VAL_DFLT      10000
 440
 441         /* Use sleep or delay between retries */
 442         bool sleep_b4_retry;
 443
 444         /* Will be set as true if the resource is free and granted */
 445         bool b_granted;
 446
 447         /* Will be filled with the resource owner.
 448          * [0..15 = PF0-15, 16 = MFW, 17 = diag over serial]
 449          */
 450         u8 owner;
 451 };
 452
 453 /**
 454  * @brief Acquires MFW generic resource lock
 455  *
 456  *  @param p_hwfn
 457  *  @param p_ptt
 458  *  @param p_params
 459  *
 460  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 461  */
 462 enum _ecore_status_t
 463 ecore_mcp_resc_lock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 464                     struct ecore_resc_lock_params *p_params);
 465
 466 struct ecore_resc_unlock_params {
 467         /* Resource number [valid values are 0..31] */
 468         u8 resource;
 469
 470         /* Allow to release a resource even if belongs to another PF */
 471         bool b_force;
 472
 473         /* Will be set as true if the resource is released */
 474         bool b_released;
 475 };
 476
 477 /**
 478  * @brief Releases MFW generic resource lock
 479  *
 480  *  @param p_hwfn
 481  *  @param p_ptt
 482  *  @param p_params
 483  *
 484  * @return enum _ecore_status_t - ECORE_SUCCESS - operation was successful.
 485  */
 486 enum _ecore_status_t
 487 ecore_mcp_resc_unlock(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 488                       struct ecore_resc_unlock_params *p_params);
 489
 490 /**
 491  * @brief - default initialization for lock/unlock resource structs
 492  *
 493  * @param p_lock - lock params struct to be initialized; Can be OSAL_NULL
 494  * @param p_unlock - unlock params struct to be initialized; Can be OSAL_NULL
 495  * @param resource - the requested resource
 496  * @paral b_is_permanent - disable retries & aging when set
 497  */
 498 void ecore_mcp_resc_lock_default_init(struct ecore_resc_lock_params *p_lock,
 499                                       struct ecore_resc_unlock_params *p_unlock,
 500                                       enum ecore_resc_lock resource,
 501                                       bool b_is_permanent);
 502
 503 /**
 504  * @brief Learn of supported MFW features; To be done during early init
 505  *
 506  * @param p_hwfn
 507  * @param p_ptt
 508  */
 509 enum _ecore_status_t ecore_mcp_get_capabilities(struct ecore_hwfn *p_hwfn,
 510                                                 struct ecore_ptt *p_ptt);
 511
 512 /**
 513  * @brief Inform MFW of set of features supported by driver. Should be done
 514  * inside the contet of the LOAD_REQ.
 515  *
 516  * @param p_hwfn
 517  * @param p_ptt
 518  */
 519 enum _ecore_status_t ecore_mcp_set_capabilities(struct ecore_hwfn *p_hwfn,
 520                                                 struct ecore_ptt *p_ptt);
 521
 522 enum ecore_mcp_drv_attr_cmd {
 523         ECORE_MCP_DRV_ATTR_CMD_READ,
 524         ECORE_MCP_DRV_ATTR_CMD_WRITE,
 525         ECORE_MCP_DRV_ATTR_CMD_READ_CLEAR,
 526         ECORE_MCP_DRV_ATTR_CMD_CLEAR,
 527 };
 528
 529 struct ecore_mcp_drv_attr {
 530         enum ecore_mcp_drv_attr_cmd attr_cmd;
 531         u32 attr_num;
 532
 533         /* R/RC - will be set with the read value
 534          * W - should hold the required value to be written
 535          * C - DC
 536          */
 537         u32 val;
 538
 539         /* W - mask/offset to be applied on the given value
 540          * R/RC/C - DC
 541          */
 542         u32 mask;
 543         u32 offset;
 544 };
 545
 546 /**
 547  * @brief Handle the drivers' attributes that are kept by the MFW.
 548  *
 549  * @param p_hwfn
 550  * @param p_ptt
 551  * @param p_drv_attr
 552  */
 553 enum _ecore_status_t
 554 ecore_mcp_drv_attribute(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 555                         struct ecore_mcp_drv_attr *p_drv_attr);
 556
 557 /**
 558  * @brief Read ufp config from the shared memory.
 559  *
 560  * @param p_hwfn
 561  * @param p_ptt
 562  */
 563 void
 564 ecore_mcp_read_ufp_config(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt);
 565
 566 void ecore_mcp_wol_wr(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 567                       u32 offset, u32 val);
 568
 569 #endif /* __ECORE_MCP_H__ */