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  * qed_init_dp(): Initialize the debug level.
  19  *
  20  * @cdev: Qed dev pointer.
  21  * @dp_module: Module debug parameter.
  22  * @dp_level: Module debug level.
  23  *
  24  * Return: Void.
  25  */
  26 void qed_init_dp(struct qed_dev *cdev,
  27                  u32 dp_module,
  28                  u8 dp_level);
  29
  30 /**
  31  * qed_init_struct(): Initialize the device structure to
  32  *                    its defaults.
  33  *
  34  * @cdev: Qed dev pointer.
  35  *
  36  * Return: Void.
  37  */
  38 void qed_init_struct(struct qed_dev *cdev);
  39
  40 /**
  41  * qed_resc_free: Free device resources.
  42  *
  43  * @cdev: Qed dev pointer.
  44  *
  45  * Return: Void.
  46  */
  47 void qed_resc_free(struct qed_dev *cdev);
  48
  49 /**
  50  * qed_resc_alloc(): Alloc device resources.
  51  *
  52  * @cdev: Qed dev pointer.
  53  *
  54  * Return: Int.
  55  */
  56 int qed_resc_alloc(struct qed_dev *cdev);
  57
  58 /**
  59  * qed_resc_setup(): Setup device resources.
  60  *
  61  * @cdev: Qed dev pointer.
  62  *
  63  * Return: Void.
  64  */
  65 void qed_resc_setup(struct qed_dev *cdev);
  66
  67 enum qed_override_force_load {
  68         QED_OVERRIDE_FORCE_LOAD_NONE,
  69         QED_OVERRIDE_FORCE_LOAD_ALWAYS,
  70         QED_OVERRIDE_FORCE_LOAD_NEVER,
  71 };
  72
  73 struct qed_drv_load_params {
  74         /* Indicates whether the driver is running over a crash kernel.
  75          * As part of the load request, this will be used for providing the
  76          * driver role to the MFW.
  77          * In case of a crash kernel over PDA - this should be set to false.
  78          */
  79         bool is_crash_kernel;
  80
  81         /* The timeout value that the MFW should use when locking the engine for
  82          * the driver load process.
  83          * A value of '0' means the default value, and '255' means no timeout.
  84          */
  85         u8 mfw_timeout_val;
  86 #define QED_LOAD_REQ_LOCK_TO_DEFAULT    0
  87 #define QED_LOAD_REQ_LOCK_TO_NONE       255
  88
  89         /* Avoid engine reset when first PF loads on it */
  90         bool avoid_eng_reset;
  91
  92         /* Allow overriding the default force load behavior */
  93         enum qed_override_force_load override_force_load;
  94 };
  95
  96 struct qed_hw_init_params {
  97         /* Tunneling parameters */
  98         struct qed_tunnel_info *p_tunn;
  99
 100         bool b_hw_start;
 101
 102         /* Interrupt mode [msix, inta, etc.] to use */
 103         enum qed_int_mode int_mode;
 104
 105         /* NPAR tx switching to be used for vports for tx-switching */
 106         bool allow_npar_tx_switch;
 107
 108         /* Binary fw data pointer in binary fw file */
 109         const u8 *bin_fw_data;
 110
 111         /* Driver load parameters */
 112         struct qed_drv_load_params *p_drv_load_params;
 113 };
 114
 115 /**
 116  * qed_hw_init(): Init Qed hardware.
 117  *
 118  * @cdev: Qed dev pointer.
 119  * @p_params: Pointers to params.
 120  *
 121  * Return: Int.
 122  */
 123 int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params);
 124
 125 /**
 126  * qed_hw_timers_stop_all(): Stop the timers HW block.
 127  *
 128  * @cdev: Qed dev pointer.
 129  *
 130  * Return: void.
 131  */
 132 void qed_hw_timers_stop_all(struct qed_dev *cdev);
 133
 134 /**
 135  * qed_hw_stop(): Stop Qed hardware.
 136  *
 137  * @cdev: Qed dev pointer.
 138  *
 139  * Return: int.
 140  */
 141 int qed_hw_stop(struct qed_dev *cdev);
 142
 143 /**
 144  * qed_hw_stop_fastpath(): Should be called incase
 145  *                         slowpath is still required for the device,
 146  *                         but fastpath is not.
 147  *
 148  * @cdev: Qed dev pointer.
 149  *
 150  * Return: Int.
 151  */
 152 int qed_hw_stop_fastpath(struct qed_dev *cdev);
 153
 154 /**
 155  * qed_hw_start_fastpath(): Restart fastpath traffic,
 156  *                          only if hw_stop_fastpath was called.
 157  *
 158  * @p_hwfn: HW device data.
 159  *
 160  * Return: Int.
 161  */
 162 int qed_hw_start_fastpath(struct qed_hwfn *p_hwfn);
 163
 164 /**
 165  * qed_hw_prepare(): Prepare Qed hardware.
 166  *
 167  * @cdev: Qed dev pointer.
 168  * @personality: Personality to initialize.
 169  *
 170  * Return: Int.
 171  */
 172 int qed_hw_prepare(struct qed_dev *cdev,
 173                    int personality);
 174
 175 /**
 176  * qed_hw_remove(): Remove Qed hardware.
 177  *
 178  * @cdev: Qed dev pointer.
 179  *
 180  * Return: Void.
 181  */
 182 void qed_hw_remove(struct qed_dev *cdev);
 183
 184 /**
 185  * qed_ptt_acquire(): Allocate a PTT window.
 186  *
 187  * @p_hwfn: HW device data.
 188  *
 189  * Return: struct qed_ptt.
 190  *
 191  * Should be called at the entry point to the driver (at the beginning of an
 192  * exported function).
 193  */
 194 struct qed_ptt *qed_ptt_acquire(struct qed_hwfn *p_hwfn);
 195
 196 /**
 197  * qed_ptt_acquire_context(): Allocate a PTT window honoring the context
 198  *                            atomicy.
 199  *
 200  * @p_hwfn: HW device data.
 201  * @is_atomic: Hint from the caller - if the func can sleep or not.
 202  *
 203  * Context: The function should not sleep in case is_atomic == true.
 204  * Return: struct qed_ptt.
 205  *
 206  * Should be called at the entry point to the driver
 207  * (at the beginning of an exported function).
 208  */
 209 struct qed_ptt *qed_ptt_acquire_context(struct qed_hwfn *p_hwfn,
 210                                         bool is_atomic);
 211
 212 /**
 213  * qed_ptt_release(): Release PTT Window.
 214  *
 215  * @p_hwfn: HW device data.
 216  * @p_ptt: P_ptt.
 217  *
 218  * Return: Void.
 219  *
 220  * Should be called at the end of a flow - at the end of the function that
 221  * acquired the PTT.
 222  */
 223 void qed_ptt_release(struct qed_hwfn *p_hwfn,
 224                      struct qed_ptt *p_ptt);
 225 void qed_reset_vport_stats(struct qed_dev *cdev);
 226
 227 enum qed_dmae_address_type_t {
 228         QED_DMAE_ADDRESS_HOST_VIRT,
 229         QED_DMAE_ADDRESS_HOST_PHYS,
 230         QED_DMAE_ADDRESS_GRC
 231 };
 232
 233 /**
 234  * qed_dmae_host2grc(): Copy data from source addr to
 235  *                      dmae registers using the given ptt.
 236  *
 237  * @p_hwfn: HW device data.
 238  * @p_ptt: P_ptt.
 239  * @source_addr: Source address.
 240  * @grc_addr: GRC address (dmae_data_offset).
 241  * @size_in_dwords: Size.
 242  * @p_params: (default parameters will be used in case of NULL).
 243  *
 244  * Return: Int.
 245  */
 246 int
 247 qed_dmae_host2grc(struct qed_hwfn *p_hwfn,
 248                   struct qed_ptt *p_ptt,
 249                   u64 source_addr,
 250                   u32 grc_addr,
 251                   u32 size_in_dwords,
 252                   struct qed_dmae_params *p_params);
 253
 254  /**
 255  * qed_dmae_grc2host(): Read data from dmae data offset
 256  *                      to source address using the given ptt.
 257  *
 258  * @p_ptt: P_ptt.
 259  * @grc_addr: GRC address (dmae_data_offset).
 260  * @dest_addr: Destination Address.
 261  * @size_in_dwords: Size.
 262  * @p_params: (default parameters will be used in case of NULL).
 263  *
 264  * Return: Int.
 265  */
 266 int qed_dmae_grc2host(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 267                       u32 grc_addr, dma_addr_t dest_addr, u32 size_in_dwords,
 268                       struct qed_dmae_params *p_params);
 269
 270 /**
 271  * qed_dmae_host2host(): Copy data from to source address
 272  *                       to a destination adrress (for SRIOV) using the given
 273  *                       ptt.
 274  *
 275  * @p_hwfn: HW device data.
 276  * @p_ptt: P_ptt.
 277  * @source_addr: Source address.
 278  * @dest_addr: Destination address.
 279  * @size_in_dwords: size.
 280  * @p_params: (default parameters will be used in case of NULL).
 281  *
 282  * Return: Int.
 283  */
 284 int qed_dmae_host2host(struct qed_hwfn *p_hwfn,
 285                        struct qed_ptt *p_ptt,
 286                        dma_addr_t source_addr,
 287                        dma_addr_t dest_addr,
 288                        u32 size_in_dwords, struct qed_dmae_params *p_params);
 289
 290 int qed_chain_alloc(struct qed_dev *cdev, struct qed_chain *chain,
 291                     struct qed_chain_init_params *params);
 292 void qed_chain_free(struct qed_dev *cdev, struct qed_chain *chain);
 293
 294 /**
 295  * qed_fw_l2_queue(): Get absolute L2 queue ID.
 296  *
 297  * @p_hwfn: HW device data.
 298  * @src_id: Relative to p_hwfn.
 299  * @dst_id: Absolute per engine.
 300  *
 301  * Return: Int.
 302  */
 303 int qed_fw_l2_queue(struct qed_hwfn *p_hwfn,
 304                     u16 src_id,
 305                     u16 *dst_id);
 306
 307 /**
 308  * qed_fw_vport(): Get absolute vport ID.
 309  *
 310  * @p_hwfn: HW device data.
 311  * @src_id: Relative to p_hwfn.
 312  * @dst_id: Absolute per engine.
 313  *
 314  * Return: Int.
 315  */
 316 int qed_fw_vport(struct qed_hwfn *p_hwfn,
 317                  u8 src_id,
 318                  u8 *dst_id);
 319
 320 /**
 321  * qed_fw_rss_eng(): Get absolute RSS engine ID.
 322  *
 323  * @p_hwfn: HW device data.
 324  * @src_id: Relative to p_hwfn.
 325  * @dst_id: Absolute per engine.
 326  *
 327  * Return: Int.
 328  */
 329 int qed_fw_rss_eng(struct qed_hwfn *p_hwfn,
 330                    u8 src_id,
 331                    u8 *dst_id);
 332
 333 /**
 334  * qed_llh_get_num_ppfid(): Return the allocated number of LLH filter
 335  *                          banks that are allocated to the PF.
 336  *
 337  * @cdev: Qed dev pointer.
 338  *
 339  * Return: u8 Number of LLH filter banks.
 340  */
 341 u8 qed_llh_get_num_ppfid(struct qed_dev *cdev);
 342
 343 enum qed_eng {
 344         QED_ENG0,
 345         QED_ENG1,
 346         QED_BOTH_ENG,
 347 };
 348
 349 /**
 350  * qed_llh_set_ppfid_affinity(): Set the engine affinity for the given
 351  *                               LLH filter bank.
 352  *
 353  * @cdev: Qed dev pointer.
 354  * @ppfid: Relative within the allocated ppfids ('0' is the default one).
 355  * @eng: Engine.
 356  *
 357  * Return: Int.
 358  */
 359 int qed_llh_set_ppfid_affinity(struct qed_dev *cdev,
 360                                u8 ppfid, enum qed_eng eng);
 361
 362 /**
 363  * qed_llh_set_roce_affinity(): Set the RoCE engine affinity.
 364  *
 365  * @cdev: Qed dev pointer.
 366  * @eng: Engine.
 367  *
 368  * Return: Int.
 369  */
 370 int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng);
 371
 372 /**
 373  * qed_llh_add_mac_filter(): Add a LLH MAC filter into the given filter
 374  *                           bank.
 375  *
 376  * @cdev: Qed dev pointer.
 377  * @ppfid: Relative within the allocated ppfids ('0' is the default one).
 378  * @mac_addr: MAC to add.
 379  *
 380  * Return: Int.
 381  */
 382 int qed_llh_add_mac_filter(struct qed_dev *cdev,
 383                            u8 ppfid, const u8 mac_addr[ETH_ALEN]);
 384
 385 /**
 386  * qed_llh_remove_mac_filter(): Remove a LLH MAC filter from the given
 387  *                              filter bank.
 388  *
 389  * @cdev: Qed dev pointer.
 390  * @ppfid: Ppfid.
 391  * @mac_addr: MAC to remove
 392  *
 393  * Return: Void.
 394  */
 395 void qed_llh_remove_mac_filter(struct qed_dev *cdev,
 396                                u8 ppfid, u8 mac_addr[ETH_ALEN]);
 397
 398 enum qed_llh_prot_filter_type_t {
 399         QED_LLH_FILTER_ETHERTYPE,
 400         QED_LLH_FILTER_TCP_SRC_PORT,
 401         QED_LLH_FILTER_TCP_DEST_PORT,
 402         QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
 403         QED_LLH_FILTER_UDP_SRC_PORT,
 404         QED_LLH_FILTER_UDP_DEST_PORT,
 405         QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
 406 };
 407
 408 /**
 409  * qed_llh_add_protocol_filter(): Add a LLH protocol filter into the
 410  *                                given filter bank.
 411  *
 412  * @cdev: Qed dev pointer.
 413  * @ppfid: Relative within the allocated ppfids ('0' is the default one).
 414  * @type: Type of filters and comparing.
 415  * @source_port_or_eth_type: Source port or ethertype to add.
 416  * @dest_port: Destination port to add.
 417  *
 418  * Return: Int.
 419  */
 420 int
 421 qed_llh_add_protocol_filter(struct qed_dev *cdev,
 422                             u8 ppfid,
 423                             enum qed_llh_prot_filter_type_t type,
 424                             u16 source_port_or_eth_type, u16 dest_port);
 425
 426 /**
 427  * qed_llh_remove_protocol_filter(): Remove a LLH protocol filter from
 428  *                                   the given filter bank.
 429  *
 430  * @cdev: Qed dev pointer.
 431  * @ppfid: Relative within the allocated ppfids ('0' is the default one).
 432  * @type: Type of filters and comparing.
 433  * @source_port_or_eth_type: Source port or ethertype to add.
 434  * @dest_port: Destination port to add.
 435  */
 436 void
 437 qed_llh_remove_protocol_filter(struct qed_dev *cdev,
 438                                u8 ppfid,
 439                                enum qed_llh_prot_filter_type_t type,
 440                                u16 source_port_or_eth_type, u16 dest_port);
 441
 442 /**
 443  * qed_final_cleanup(): Cleanup of previous driver remains prior to load.
 444  *
 445  * @p_hwfn: HW device data.
 446  * @p_ptt: P_ptt.
 447  * @id: For PF, engine-relative. For VF, PF-relative.
 448  * @is_vf: True iff cleanup is made for a VF.
 449  *
 450  * Return: Int.
 451  */
 452 int qed_final_cleanup(struct qed_hwfn *p_hwfn,
 453                       struct qed_ptt *p_ptt, u16 id, bool is_vf);
 454
 455 /**
 456  * qed_get_queue_coalesce(): Retrieve coalesce value for a given queue.
 457  *
 458  * @p_hwfn: HW device data.
 459  * @coal: Store coalesce value read from the hardware.
 460  * @handle: P_handle.
 461  *
 462  * Return: Int.
 463  **/
 464 int qed_get_queue_coalesce(struct qed_hwfn *p_hwfn, u16 *coal, void *handle);
 465
 466 /**
 467  * qed_set_queue_coalesce(): Configure coalesce parameters for Rx and
 468  *    Tx queue. The fact that we can configure coalescing to up to 511, but on
 469  *    varying accuracy [the bigger the value the less accurate] up to a mistake
 470  *    of 3usec for the highest values.
 471  *    While the API allows setting coalescing per-qid, all queues sharing a SB
 472  *    should be in same range [i.e., either 0-0x7f, 0x80-0xff or 0x100-0x1ff]
 473  *    otherwise configuration would break.
 474  *
 475  * @rx_coal: Rx Coalesce value in micro seconds.
 476  * @tx_coal: TX Coalesce value in micro seconds.
 477  * @p_handle: P_handle.
 478  *
 479  * Return: Int.
 480  **/
 481 int
 482 qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle);
 483
 484 /**
 485  * qed_pglueb_set_pfid_enable(): Enable or disable PCI BUS MASTER.
 486  *
 487  * @p_hwfn: HW device data.
 488  * @p_ptt: P_ptt.
 489  * @b_enable: True/False.
 490  *
 491  * Return: Int.
 492  */
 493 int qed_pglueb_set_pfid_enable(struct qed_hwfn *p_hwfn,
 494                                struct qed_ptt *p_ptt, bool b_enable);
 495
 496 /**
 497  * qed_db_recovery_add(): add doorbell information to the doorbell
 498  *                    recovery mechanism.
 499  *
 500  * @cdev: Qed dev pointer.
 501  * @db_addr: Doorbell address.
 502  * @db_data: Address of where db_data is stored.
 503  * @db_width: Doorbell is 32b pr 64b.
 504  * @db_space: Doorbell recovery addresses are user or kernel space.
 505  *
 506  * Return: Int.
 507  */
 508 int qed_db_recovery_add(struct qed_dev *cdev,
 509                         void __iomem *db_addr,
 510                         void *db_data,
 511                         enum qed_db_rec_width db_width,
 512                         enum qed_db_rec_space db_space);
 513
 514 /**
 515  * qed_db_recovery_del() - remove doorbell information from the doorbell
 516  * recovery mechanism. db_data serves as key (db_addr is not unique).
 517  *
 518  * @cdev: Qed dev pointer.
 519  * @db_addr: doorbell address.
 520  * @db_data: address where db_data is stored. Serves as key for the
 521  *                  entry to delete.
 522  *
 523  * Return: Int.
 524  */
 525 int qed_db_recovery_del(struct qed_dev *cdev,
 526                         void __iomem *db_addr, void *db_data);
 527
 528 const char *qed_hw_get_resc_name(enum qed_resources res_id);
 529 #endif