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

   1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
   2 /* QLogic qed NIC Driver
   3  * Copyright (c) 2015-2017  QLogic Corporation
   4  * Copyright (c) 2019-2020 Marvell International Ltd.
   5  */
   6
   7 #ifndef _QED_DEV_API_H
   8 #define _QED_DEV_API_H
   9
  10 #include <linux/types.h>
  11 #include <linux/kernel.h>
  12 #include <linux/slab.h>
  13 #include <linux/qed/qed_chain.h>
  14 #include <linux/qed/qed_if.h>
  15 #include "qed_int.h"
  16
  17 /**
  18  * @brief qed_init_dp - initialize the debug level
  19  *
  20  * @param cdev
  21  * @param dp_module
  22  * @param dp_level
  23  */
  24 void qed_init_dp(struct qed_dev *cdev,
  25                  u32 dp_module,
  26                  u8 dp_level);
  27
  28 /**
  29  * @brief qed_init_struct - initialize the device structure to
  30  *        its defaults
  31  *
  32  * @param cdev
  33  */
  34 void qed_init_struct(struct qed_dev *cdev);
  35
  36 /**
  37  * @brief qed_resc_free -
  38  *
  39  * @param cdev
  40  */
  41 void qed_resc_free(struct qed_dev *cdev);
  42
  43 /**
  44  * @brief qed_resc_alloc -
  45  *
  46  * @param cdev
  47  *
  48  * @return int
  49  */
  50 int qed_resc_alloc(struct qed_dev *cdev);
  51
  52 /**
  53  * @brief qed_resc_setup -
  54  *
  55  * @param cdev
  56  */
  57 void qed_resc_setup(struct qed_dev *cdev);
  58
  59 enum qed_override_force_load {
  60         QED_OVERRIDE_FORCE_LOAD_NONE,
  61         QED_OVERRIDE_FORCE_LOAD_ALWAYS,
  62         QED_OVERRIDE_FORCE_LOAD_NEVER,
  63 };
  64
  65 struct qed_drv_load_params {
  66         /* Indicates whether the driver is running over a crash kernel.
  67          * As part of the load request, this will be used for providing the
  68          * driver role to the MFW.
  69          * In case of a crash kernel over PDA - this should be set to false.
  70          */
  71         bool is_crash_kernel;
  72
  73         /* The timeout value that the MFW should use when locking the engine for
  74          * the driver load process.
  75          * A value of '0' means the default value, and '255' means no timeout.
  76          */
  77         u8 mfw_timeout_val;
  78 #define QED_LOAD_REQ_LOCK_TO_DEFAULT    0
  79 #define QED_LOAD_REQ_LOCK_TO_NONE       255
  80
  81         /* Avoid engine reset when first PF loads on it */
  82         bool avoid_eng_reset;
  83
  84         /* Allow overriding the default force load behavior */
  85         enum qed_override_force_load override_force_load;
  86 };
  87
  88 struct qed_hw_init_params {
  89         /* Tunneling parameters */
  90         struct qed_tunnel_info *p_tunn;
  91
  92         bool b_hw_start;
  93
  94         /* Interrupt mode [msix, inta, etc.] to use */
  95         enum qed_int_mode int_mode;
  96
  97         /* NPAR tx switching to be used for vports for tx-switching */
  98         bool allow_npar_tx_switch;
  99
 100         /* Binary fw data pointer in binary fw file */
 101         const u8 *bin_fw_data;
 102
 103         /* Driver load parameters */
 104         struct qed_drv_load_params *p_drv_load_params;
 105 };
 106
 107 /**
 108  * @brief qed_hw_init -
 109  *
 110  * @param cdev
 111  * @param p_params
 112  *
 113  * @return int
 114  */
 115 int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params);
 116
 117 /**
 118  * @brief qed_hw_timers_stop_all - stop the timers HW block
 119  *
 120  * @param cdev
 121  *
 122  * @return void
 123  */
 124 void qed_hw_timers_stop_all(struct qed_dev *cdev);
 125
 126 /**
 127  * @brief qed_hw_stop -
 128  *
 129  * @param cdev
 130  *
 131  * @return int
 132  */
 133 int qed_hw_stop(struct qed_dev *cdev);
 134
 135 /**
 136  * @brief qed_hw_stop_fastpath -should be called incase
 137  *              slowpath is still required for the device,
 138  *              but fastpath is not.
 139  *
 140  * @param cdev
 141  *
 142  * @return int
 143  */
 144 int qed_hw_stop_fastpath(struct qed_dev *cdev);
 145
 146 /**
 147  * @brief qed_hw_start_fastpath -restart fastpath traffic,
 148  *              only if hw_stop_fastpath was called
 149  *
 150  * @param p_hwfn
 151  *
 152  * @return int
 153  */
 154 int qed_hw_start_fastpath(struct qed_hwfn *p_hwfn);
 155
 156
 157 /**
 158  * @brief qed_hw_prepare -
 159  *
 160  * @param cdev
 161  * @param personality - personality to initialize
 162  *
 163  * @return int
 164  */
 165 int qed_hw_prepare(struct qed_dev *cdev,
 166                    int personality);
 167
 168 /**
 169  * @brief qed_hw_remove -
 170  *
 171  * @param cdev
 172  */
 173 void qed_hw_remove(struct qed_dev *cdev);
 174
 175 /**
 176  * @brief qed_ptt_acquire - Allocate a PTT window
 177  *
 178  * Should be called at the entry point to the driver (at the beginning of an
 179  * exported function)
 180  *
 181  * @param p_hwfn
 182  *
 183  * @return struct qed_ptt
 184  */
 185 struct qed_ptt *qed_ptt_acquire(struct qed_hwfn *p_hwfn);
 186
 187 /**
 188  * @brief qed_ptt_release - Release PTT Window
 189  *
 190  * Should be called at the end of a flow - at the end of the function that
 191  * acquired the PTT.
 192  *
 193  *
 194  * @param p_hwfn
 195  * @param p_ptt
 196  */
 197 void qed_ptt_release(struct qed_hwfn *p_hwfn,
 198                      struct qed_ptt *p_ptt);
 199 void qed_reset_vport_stats(struct qed_dev *cdev);
 200
 201 enum qed_dmae_address_type_t {
 202         QED_DMAE_ADDRESS_HOST_VIRT,
 203         QED_DMAE_ADDRESS_HOST_PHYS,
 204         QED_DMAE_ADDRESS_GRC
 205 };
 206
 207 /**
 208  * @brief qed_dmae_host2grc - copy data from source addr to
 209  * dmae registers using the given ptt
 210  *
 211  * @param p_hwfn
 212  * @param p_ptt
 213  * @param source_addr
 214  * @param grc_addr (dmae_data_offset)
 215  * @param size_in_dwords
 216  * @param p_params (default parameters will be used in case of NULL)
 217  */
 218 int
 219 qed_dmae_host2grc(struct qed_hwfn *p_hwfn,
 220                   struct qed_ptt *p_ptt,
 221                   u64 source_addr,
 222                   u32 grc_addr,
 223                   u32 size_in_dwords,
 224                   struct qed_dmae_params *p_params);
 225
 226  /**
 227  * @brief qed_dmae_grc2host - Read data from dmae data offset
 228  * to source address using the given ptt
 229  *
 230  * @param p_ptt
 231  * @param grc_addr (dmae_data_offset)
 232  * @param dest_addr
 233  * @param size_in_dwords
 234  * @param p_params (default parameters will be used in case of NULL)
 235  */
 236 int qed_dmae_grc2host(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 237                       u32 grc_addr, dma_addr_t dest_addr, u32 size_in_dwords,
 238                       struct qed_dmae_params *p_params);
 239
 240 /**
 241  * @brief qed_dmae_host2host - copy data from to source address
 242  * to a destination adress (for SRIOV) using the given ptt
 243  *
 244  * @param p_hwfn
 245  * @param p_ptt
 246  * @param source_addr
 247  * @param dest_addr
 248  * @param size_in_dwords
 249  * @param p_params (default parameters will be used in case of NULL)
 250  */
 251 int qed_dmae_host2host(struct qed_hwfn *p_hwfn,
 252                        struct qed_ptt *p_ptt,
 253                        dma_addr_t source_addr,
 254                        dma_addr_t dest_addr,
 255                        u32 size_in_dwords, struct qed_dmae_params *p_params);
 256
 257 int qed_chain_alloc(struct qed_dev *cdev, struct qed_chain *chain,
 258                     struct qed_chain_init_params *params);
 259 void qed_chain_free(struct qed_dev *cdev, struct qed_chain *chain);
 260
 261 /**
 262  * @@brief qed_fw_l2_queue - Get absolute L2 queue ID
 263  *
 264  *  @param p_hwfn
 265  *  @param src_id - relative to p_hwfn
 266  *  @param dst_id - absolute per engine
 267  *
 268  *  @return int
 269  */
 270 int qed_fw_l2_queue(struct qed_hwfn *p_hwfn,
 271                     u16 src_id,
 272                     u16 *dst_id);
 273
 274 /**
 275  * @@brief qed_fw_vport - Get absolute vport ID
 276  *
 277  *  @param p_hwfn
 278  *  @param src_id - relative to p_hwfn
 279  *  @param dst_id - absolute per engine
 280  *
 281  *  @return int
 282  */
 283 int qed_fw_vport(struct qed_hwfn *p_hwfn,
 284                  u8 src_id,
 285                  u8 *dst_id);
 286
 287 /**
 288  * @@brief qed_fw_rss_eng - Get absolute RSS engine ID
 289  *
 290  *  @param p_hwfn
 291  *  @param src_id - relative to p_hwfn
 292  *  @param dst_id - absolute per engine
 293  *
 294  *  @return int
 295  */
 296 int qed_fw_rss_eng(struct qed_hwfn *p_hwfn,
 297                    u8 src_id,
 298                    u8 *dst_id);
 299
 300 /**
 301  * @brief qed_llh_get_num_ppfid - Return the allocated number of LLH filter
 302  *      banks that are allocated to the PF.
 303  *
 304  * @param cdev
 305  *
 306  * @return u8 - Number of LLH filter banks
 307  */
 308 u8 qed_llh_get_num_ppfid(struct qed_dev *cdev);
 309
 310 enum qed_eng {
 311         QED_ENG0,
 312         QED_ENG1,
 313         QED_BOTH_ENG,
 314 };
 315
 316 /**
 317  * @brief qed_llh_set_ppfid_affinity - Set the engine affinity for the given
 318  *      LLH filter bank.
 319  *
 320  * @param cdev
 321  * @param ppfid - relative within the allocated ppfids ('0' is the default one).
 322  * @param eng
 323  *
 324  * @return int
 325  */
 326 int qed_llh_set_ppfid_affinity(struct qed_dev *cdev,
 327                                u8 ppfid, enum qed_eng eng);
 328
 329 /**
 330  * @brief qed_llh_set_roce_affinity - Set the RoCE engine affinity
 331  *
 332  * @param cdev
 333  * @param eng
 334  *
 335  * @return int
 336  */
 337 int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng);
 338
 339 /**
 340  * @brief qed_llh_add_mac_filter - Add a LLH MAC filter into the given filter
 341  *      bank.
 342  *
 343  * @param cdev
 344  * @param ppfid - relative within the allocated ppfids ('0' is the default one).
 345  * @param mac_addr - MAC to add
 346  */
 347 int qed_llh_add_mac_filter(struct qed_dev *cdev,
 348                            u8 ppfid, u8 mac_addr[ETH_ALEN]);
 349
 350 /**
 351  * @brief qed_llh_remove_mac_filter - Remove a LLH MAC filter from the given
 352  *      filter bank.
 353  *
 354  * @param p_ptt
 355  * @param p_filter - MAC to remove
 356  */
 357 void qed_llh_remove_mac_filter(struct qed_dev *cdev,
 358                                u8 ppfid, u8 mac_addr[ETH_ALEN]);
 359
 360 enum qed_llh_prot_filter_type_t {
 361         QED_LLH_FILTER_ETHERTYPE,
 362         QED_LLH_FILTER_TCP_SRC_PORT,
 363         QED_LLH_FILTER_TCP_DEST_PORT,
 364         QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
 365         QED_LLH_FILTER_UDP_SRC_PORT,
 366         QED_LLH_FILTER_UDP_DEST_PORT,
 367         QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
 368 };
 369
 370 /**
 371  * @brief qed_llh_add_protocol_filter - Add a LLH protocol filter into the
 372  *      given filter bank.
 373  *
 374  * @param cdev
 375  * @param ppfid - relative within the allocated ppfids ('0' is the default one).
 376  * @param type - type of filters and comparing
 377  * @param source_port_or_eth_type - source port or ethertype to add
 378  * @param dest_port - destination port to add
 379  * @param type - type of filters and comparing
 380  */
 381 int
 382 qed_llh_add_protocol_filter(struct qed_dev *cdev,
 383                             u8 ppfid,
 384                             enum qed_llh_prot_filter_type_t type,
 385                             u16 source_port_or_eth_type, u16 dest_port);
 386
 387 /**
 388  * @brief qed_llh_remove_protocol_filter - Remove a LLH protocol filter from
 389  *      the given filter bank.
 390  *
 391  * @param cdev
 392  * @param ppfid - relative within the allocated ppfids ('0' is the default one).
 393  * @param type - type of filters and comparing
 394  * @param source_port_or_eth_type - source port or ethertype to add
 395  * @param dest_port - destination port to add
 396  */
 397 void
 398 qed_llh_remove_protocol_filter(struct qed_dev *cdev,
 399                                u8 ppfid,
 400                                enum qed_llh_prot_filter_type_t type,
 401                                u16 source_port_or_eth_type, u16 dest_port);
 402
 403 /**
 404  * *@brief Cleanup of previous driver remains prior to load
 405  *
 406  * @param p_hwfn
 407  * @param p_ptt
 408  * @param id - For PF, engine-relative. For VF, PF-relative.
 409  * @param is_vf - true iff cleanup is made for a VF.
 410  *
 411  * @return int
 412  */
 413 int qed_final_cleanup(struct qed_hwfn *p_hwfn,
 414                       struct qed_ptt *p_ptt, u16 id, bool is_vf);
 415
 416 /**
 417  * @brief qed_get_queue_coalesce - Retrieve coalesce value for a given queue.
 418  *
 419  * @param p_hwfn
 420  * @param p_coal - store coalesce value read from the hardware.
 421  * @param p_handle
 422  *
 423  * @return int
 424  **/
 425 int qed_get_queue_coalesce(struct qed_hwfn *p_hwfn, u16 *coal, void *handle);
 426
 427 /**
 428  * @brief qed_set_queue_coalesce - Configure coalesce parameters for Rx and
 429  *    Tx queue. The fact that we can configure coalescing to up to 511, but on
 430  *    varying accuracy [the bigger the value the less accurate] up to a mistake
 431  *    of 3usec for the highest values.
 432  *    While the API allows setting coalescing per-qid, all queues sharing a SB
 433  *    should be in same range [i.e., either 0-0x7f, 0x80-0xff or 0x100-0x1ff]
 434  *    otherwise configuration would break.
 435  *
 436  *
 437  * @param rx_coal - Rx Coalesce value in micro seconds.
 438  * @param tx_coal - TX Coalesce value in micro seconds.
 439  * @param p_handle
 440  *
 441  * @return int
 442  **/
 443 int
 444 qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle);
 445
 446 /**
 447  * @brief qed_pglueb_set_pfid_enable - Enable or disable PCI BUS MASTER
 448  *
 449  * @param p_hwfn
 450  * @param p_ptt
 451  * @param b_enable - true/false
 452  *
 453  * @return int
 454  */
 455 int qed_pglueb_set_pfid_enable(struct qed_hwfn *p_hwfn,
 456                                struct qed_ptt *p_ptt, bool b_enable);
 457
 458 /**
 459  * @brief db_recovery_add - add doorbell information to the doorbell
 460  * recovery mechanism.
 461  *
 462  * @param cdev
 463  * @param db_addr - doorbell address
 464  * @param db_data - address of where db_data is stored
 465  * @param db_width - doorbell is 32b pr 64b
 466  * @param db_space - doorbell recovery addresses are user or kernel space
 467  */
 468 int qed_db_recovery_add(struct qed_dev *cdev,
 469                         void __iomem *db_addr,
 470                         void *db_data,
 471                         enum qed_db_rec_width db_width,
 472                         enum qed_db_rec_space db_space);
 473
 474 /**
 475  * @brief db_recovery_del - remove doorbell information from the doorbell
 476  * recovery mechanism. db_data serves as key (db_addr is not unique).
 477  *
 478  * @param cdev
 479  * @param db_addr - doorbell address
 480  * @param db_data - address where db_data is stored. Serves as key for the
 481  *                  entry to delete.
 482  */
 483 int qed_db_recovery_del(struct qed_dev *cdev,
 484                         void __iomem *db_addr, void *db_data);
 485
 486
 487 const char *qed_hw_get_resc_name(enum qed_resources res_id);
 488 #endif