linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
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   1/* bnx2x_cmn.h: Broadcom Everest network driver.
   2 *
   3 * Copyright (c) 2007-2013 Broadcom Corporation
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License as published by
   7 * the Free Software Foundation.
   8 *
   9 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  10 * Written by: Eliezer Tamir
  11 * Based on code from Michael Chan's bnx2 driver
  12 * UDP CSUM errata workaround by Arik Gendelman
  13 * Slowpath and fastpath rework by Vladislav Zolotarov
  14 * Statistics and Link management by Yitchak Gertner
  15 *
  16 */
  17#ifndef BNX2X_CMN_H
  18#define BNX2X_CMN_H
  19
  20#include <linux/types.h>
  21#include <linux/pci.h>
  22#include <linux/netdevice.h>
  23#include <linux/etherdevice.h>
  24
  25#include "bnx2x.h"
  26#include "bnx2x_sriov.h"
  27
  28/* This is used as a replacement for an MCP if it's not present */
  29extern int load_count[2][3]; /* per-path: 0-common, 1-port0, 2-port1 */
  30
  31extern int num_queues;
  32extern int int_mode;
  33
  34/************************ Macros ********************************/
  35#define BNX2X_PCI_FREE(x, y, size) \
  36        do { \
  37                if (x) { \
  38                        dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \
  39                        x = NULL; \
  40                        y = 0; \
  41                } \
  42        } while (0)
  43
  44#define BNX2X_FREE(x) \
  45        do { \
  46                if (x) { \
  47                        kfree((void *)x); \
  48                        x = NULL; \
  49                } \
  50        } while (0)
  51
  52#define BNX2X_PCI_ALLOC(x, y, size) \
  53        do { \
  54                x = dma_alloc_coherent(&bp->pdev->dev, size, y, \
  55                                       GFP_KERNEL | __GFP_ZERO); \
  56                if (x == NULL) \
  57                        goto alloc_mem_err; \
  58                DP(NETIF_MSG_HW, "BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n", \
  59                   (unsigned long long)(*y), x); \
  60        } while (0)
  61
  62#define BNX2X_PCI_FALLOC(x, y, size) \
  63        do { \
  64                x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
  65                if (x == NULL) \
  66                        goto alloc_mem_err; \
  67                memset((void *)x, 0xFFFFFFFF, size); \
  68                DP(NETIF_MSG_HW, "BNX2X_PCI_FALLOC: Physical %Lx Virtual %p\n",\
  69                   (unsigned long long)(*y), x); \
  70        } while (0)
  71
  72#define BNX2X_ALLOC(x, size) \
  73        do { \
  74                x = kzalloc(size, GFP_KERNEL); \
  75                if (x == NULL) \
  76                        goto alloc_mem_err; \
  77        } while (0)
  78
  79/*********************** Interfaces ****************************
  80 *  Functions that need to be implemented by each driver version
  81 */
  82/* Init */
  83
  84/**
  85 * bnx2x_send_unload_req - request unload mode from the MCP.
  86 *
  87 * @bp:                 driver handle
  88 * @unload_mode:        requested function's unload mode
  89 *
  90 * Return unload mode returned by the MCP: COMMON, PORT or FUNC.
  91 */
  92u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode);
  93
  94/**
  95 * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP.
  96 *
  97 * @bp:         driver handle
  98 * @keep_link:          true iff link should be kept up
  99 */
 100void bnx2x_send_unload_done(struct bnx2x *bp, bool keep_link);
 101
 102/**
 103 * bnx2x_config_rss_pf - configure RSS parameters in a PF.
 104 *
 105 * @bp:                 driver handle
 106 * @rss_obj:            RSS object to use
 107 * @ind_table:          indirection table to configure
 108 * @config_hash:        re-configure RSS hash keys configuration
 109 */
 110int bnx2x_config_rss_pf(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj,
 111                        bool config_hash);
 112
 113/**
 114 * bnx2x__init_func_obj - init function object
 115 *
 116 * @bp:                 driver handle
 117 *
 118 * Initializes the Function Object with the appropriate
 119 * parameters which include a function slow path driver
 120 * interface.
 121 */
 122void bnx2x__init_func_obj(struct bnx2x *bp);
 123
 124/**
 125 * bnx2x_setup_queue - setup eth queue.
 126 *
 127 * @bp:         driver handle
 128 * @fp:         pointer to the fastpath structure
 129 * @leading:    boolean
 130 *
 131 */
 132int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 133                       bool leading);
 134
 135/**
 136 * bnx2x_setup_leading - bring up a leading eth queue.
 137 *
 138 * @bp:         driver handle
 139 */
 140int bnx2x_setup_leading(struct bnx2x *bp);
 141
 142/**
 143 * bnx2x_fw_command - send the MCP a request
 144 *
 145 * @bp:         driver handle
 146 * @command:    request
 147 * @param:      request's parameter
 148 *
 149 * block until there is a reply
 150 */
 151u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param);
 152
 153/**
 154 * bnx2x_initial_phy_init - initialize link parameters structure variables.
 155 *
 156 * @bp:         driver handle
 157 * @load_mode:  current mode
 158 */
 159int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode);
 160
 161/**
 162 * bnx2x_link_set - configure hw according to link parameters structure.
 163 *
 164 * @bp:         driver handle
 165 */
 166void bnx2x_link_set(struct bnx2x *bp);
 167
 168/**
 169 * bnx2x_force_link_reset - Forces link reset, and put the PHY
 170 * in reset as well.
 171 *
 172 * @bp:         driver handle
 173 */
 174void bnx2x_force_link_reset(struct bnx2x *bp);
 175
 176/**
 177 * bnx2x_link_test - query link status.
 178 *
 179 * @bp:         driver handle
 180 * @is_serdes:  bool
 181 *
 182 * Returns 0 if link is UP.
 183 */
 184u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes);
 185
 186/**
 187 * bnx2x_drv_pulse - write driver pulse to shmem
 188 *
 189 * @bp:         driver handle
 190 *
 191 * writes the value in bp->fw_drv_pulse_wr_seq to drv_pulse mbox
 192 * in the shmem.
 193 */
 194void bnx2x_drv_pulse(struct bnx2x *bp);
 195
 196/**
 197 * bnx2x_igu_ack_sb - update IGU with current SB value
 198 *
 199 * @bp:         driver handle
 200 * @igu_sb_id:  SB id
 201 * @segment:    SB segment
 202 * @index:      SB index
 203 * @op:         SB operation
 204 * @update:     is HW update required
 205 */
 206void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment,
 207                      u16 index, u8 op, u8 update);
 208
 209/* Disable transactions from chip to host */
 210void bnx2x_pf_disable(struct bnx2x *bp);
 211int bnx2x_pretend_func(struct bnx2x *bp, u16 pretend_func_val);
 212
 213/**
 214 * bnx2x__link_status_update - handles link status change.
 215 *
 216 * @bp:         driver handle
 217 */
 218void bnx2x__link_status_update(struct bnx2x *bp);
 219
 220/**
 221 * bnx2x_link_report - report link status to upper layer.
 222 *
 223 * @bp:         driver handle
 224 */
 225void bnx2x_link_report(struct bnx2x *bp);
 226
 227/* None-atomic version of bnx2x_link_report() */
 228void __bnx2x_link_report(struct bnx2x *bp);
 229
 230/**
 231 * bnx2x_get_mf_speed - calculate MF speed.
 232 *
 233 * @bp:         driver handle
 234 *
 235 * Takes into account current linespeed and MF configuration.
 236 */
 237u16 bnx2x_get_mf_speed(struct bnx2x *bp);
 238
 239/**
 240 * bnx2x_msix_sp_int - MSI-X slowpath interrupt handler
 241 *
 242 * @irq:                irq number
 243 * @dev_instance:       private instance
 244 */
 245irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance);
 246
 247/**
 248 * bnx2x_interrupt - non MSI-X interrupt handler
 249 *
 250 * @irq:                irq number
 251 * @dev_instance:       private instance
 252 */
 253irqreturn_t bnx2x_interrupt(int irq, void *dev_instance);
 254
 255/**
 256 * bnx2x_cnic_notify - send command to cnic driver
 257 *
 258 * @bp:         driver handle
 259 * @cmd:        command
 260 */
 261int bnx2x_cnic_notify(struct bnx2x *bp, int cmd);
 262
 263/**
 264 * bnx2x_setup_cnic_irq_info - provides cnic with IRQ information
 265 *
 266 * @bp:         driver handle
 267 */
 268void bnx2x_setup_cnic_irq_info(struct bnx2x *bp);
 269
 270/**
 271 * bnx2x_setup_cnic_info - provides cnic with updated info
 272 *
 273 * @bp:         driver handle
 274 */
 275void bnx2x_setup_cnic_info(struct bnx2x *bp);
 276
 277/**
 278 * bnx2x_int_enable - enable HW interrupts.
 279 *
 280 * @bp:         driver handle
 281 */
 282void bnx2x_int_enable(struct bnx2x *bp);
 283
 284/**
 285 * bnx2x_int_disable_sync - disable interrupts.
 286 *
 287 * @bp:         driver handle
 288 * @disable_hw: true, disable HW interrupts.
 289 *
 290 * This function ensures that there are no
 291 * ISRs or SP DPCs (sp_task) are running after it returns.
 292 */
 293void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw);
 294
 295/**
 296 * bnx2x_nic_init_cnic - init driver internals for cnic.
 297 *
 298 * @bp:         driver handle
 299 * @load_code:  COMMON, PORT or FUNCTION
 300 *
 301 * Initializes:
 302 *  - rings
 303 *  - status blocks
 304 *  - etc.
 305 */
 306void bnx2x_nic_init_cnic(struct bnx2x *bp);
 307
 308/**
 309 * bnx2x_preirq_nic_init - init driver internals.
 310 *
 311 * @bp:         driver handle
 312 *
 313 * Initializes:
 314 *  - fastpath object
 315 *  - fastpath rings
 316 *  etc.
 317 */
 318void bnx2x_pre_irq_nic_init(struct bnx2x *bp);
 319
 320/**
 321 * bnx2x_postirq_nic_init - init driver internals.
 322 *
 323 * @bp:         driver handle
 324 * @load_code:  COMMON, PORT or FUNCTION
 325 *
 326 * Initializes:
 327 *  - status blocks
 328 *  - slowpath rings
 329 *  - etc.
 330 */
 331void bnx2x_post_irq_nic_init(struct bnx2x *bp, u32 load_code);
 332/**
 333 * bnx2x_alloc_mem_cnic - allocate driver's memory for cnic.
 334 *
 335 * @bp:         driver handle
 336 */
 337int bnx2x_alloc_mem_cnic(struct bnx2x *bp);
 338/**
 339 * bnx2x_alloc_mem - allocate driver's memory.
 340 *
 341 * @bp:         driver handle
 342 */
 343int bnx2x_alloc_mem(struct bnx2x *bp);
 344
 345/**
 346 * bnx2x_free_mem_cnic - release driver's memory for cnic.
 347 *
 348 * @bp:         driver handle
 349 */
 350void bnx2x_free_mem_cnic(struct bnx2x *bp);
 351/**
 352 * bnx2x_free_mem - release driver's memory.
 353 *
 354 * @bp:         driver handle
 355 */
 356void bnx2x_free_mem(struct bnx2x *bp);
 357
 358/**
 359 * bnx2x_set_num_queues - set number of queues according to mode.
 360 *
 361 * @bp:         driver handle
 362 */
 363void bnx2x_set_num_queues(struct bnx2x *bp);
 364
 365/**
 366 * bnx2x_chip_cleanup - cleanup chip internals.
 367 *
 368 * @bp:                 driver handle
 369 * @unload_mode:        COMMON, PORT, FUNCTION
 370 * @keep_link:          true iff link should be kept up.
 371 *
 372 * - Cleanup MAC configuration.
 373 * - Closes clients.
 374 * - etc.
 375 */
 376void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link);
 377
 378/**
 379 * bnx2x_acquire_hw_lock - acquire HW lock.
 380 *
 381 * @bp:         driver handle
 382 * @resource:   resource bit which was locked
 383 */
 384int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource);
 385
 386/**
 387 * bnx2x_release_hw_lock - release HW lock.
 388 *
 389 * @bp:         driver handle
 390 * @resource:   resource bit which was locked
 391 */
 392int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource);
 393
 394/**
 395 * bnx2x_release_leader_lock - release recovery leader lock
 396 *
 397 * @bp:         driver handle
 398 */
 399int bnx2x_release_leader_lock(struct bnx2x *bp);
 400
 401/**
 402 * bnx2x_set_eth_mac - configure eth MAC address in the HW
 403 *
 404 * @bp:         driver handle
 405 * @set:        set or clear
 406 *
 407 * Configures according to the value in netdev->dev_addr.
 408 */
 409int bnx2x_set_eth_mac(struct bnx2x *bp, bool set);
 410
 411/**
 412 * bnx2x_set_rx_mode - set MAC filtering configurations.
 413 *
 414 * @dev:        netdevice
 415 *
 416 * called with netif_tx_lock from dev_mcast.c
 417 * If bp->state is OPEN, should be called with
 418 * netif_addr_lock_bh()
 419 */
 420void bnx2x_set_rx_mode(struct net_device *dev);
 421
 422/**
 423 * bnx2x_set_storm_rx_mode - configure MAC filtering rules in a FW.
 424 *
 425 * @bp:         driver handle
 426 *
 427 * If bp->state is OPEN, should be called with
 428 * netif_addr_lock_bh().
 429 */
 430int bnx2x_set_storm_rx_mode(struct bnx2x *bp);
 431
 432/**
 433 * bnx2x_set_q_rx_mode - configures rx_mode for a single queue.
 434 *
 435 * @bp:                 driver handle
 436 * @cl_id:              client id
 437 * @rx_mode_flags:      rx mode configuration
 438 * @rx_accept_flags:    rx accept configuration
 439 * @tx_accept_flags:    tx accept configuration (tx switch)
 440 * @ramrod_flags:       ramrod configuration
 441 */
 442int bnx2x_set_q_rx_mode(struct bnx2x *bp, u8 cl_id,
 443                        unsigned long rx_mode_flags,
 444                        unsigned long rx_accept_flags,
 445                        unsigned long tx_accept_flags,
 446                        unsigned long ramrod_flags);
 447
 448/* Parity errors related */
 449void bnx2x_set_pf_load(struct bnx2x *bp);
 450bool bnx2x_clear_pf_load(struct bnx2x *bp);
 451bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print);
 452bool bnx2x_reset_is_done(struct bnx2x *bp, int engine);
 453void bnx2x_set_reset_in_progress(struct bnx2x *bp);
 454void bnx2x_set_reset_global(struct bnx2x *bp);
 455void bnx2x_disable_close_the_gate(struct bnx2x *bp);
 456int bnx2x_init_hw_func_cnic(struct bnx2x *bp);
 457
 458/**
 459 * bnx2x_sp_event - handle ramrods completion.
 460 *
 461 * @fp:         fastpath handle for the event
 462 * @rr_cqe:     eth_rx_cqe
 463 */
 464void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe);
 465
 466/**
 467 * bnx2x_ilt_set_info - prepare ILT configurations.
 468 *
 469 * @bp:         driver handle
 470 */
 471void bnx2x_ilt_set_info(struct bnx2x *bp);
 472
 473/**
 474 * bnx2x_ilt_set_cnic_info - prepare ILT configurations for SRC
 475 * and TM.
 476 *
 477 * @bp:         driver handle
 478 */
 479void bnx2x_ilt_set_info_cnic(struct bnx2x *bp);
 480
 481/**
 482 * bnx2x_dcbx_init - initialize dcbx protocol.
 483 *
 484 * @bp:         driver handle
 485 */
 486void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem);
 487
 488/**
 489 * bnx2x_set_power_state - set power state to the requested value.
 490 *
 491 * @bp:         driver handle
 492 * @state:      required state D0 or D3hot
 493 *
 494 * Currently only D0 and D3hot are supported.
 495 */
 496int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state);
 497
 498/**
 499 * bnx2x_update_max_mf_config - update MAX part of MF configuration in HW.
 500 *
 501 * @bp:         driver handle
 502 * @value:      new value
 503 */
 504void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
 505/* Error handling */
 506void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
 507
 508/* dev_close main block */
 509int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link);
 510
 511/* dev_open main block */
 512int bnx2x_nic_load(struct bnx2x *bp, int load_mode);
 513
 514/* hard_xmit callback */
 515netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev);
 516
 517/* setup_tc callback */
 518int bnx2x_setup_tc(struct net_device *dev, u8 num_tc);
 519
 520int bnx2x_get_vf_config(struct net_device *dev, int vf,
 521                        struct ifla_vf_info *ivi);
 522int bnx2x_set_vf_mac(struct net_device *dev, int queue, u8 *mac);
 523int bnx2x_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos);
 524
 525/* select_queue callback */
 526u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb);
 527
 528static inline void bnx2x_update_rx_prod(struct bnx2x *bp,
 529                                        struct bnx2x_fastpath *fp,
 530                                        u16 bd_prod, u16 rx_comp_prod,
 531                                        u16 rx_sge_prod)
 532{
 533        struct ustorm_eth_rx_producers rx_prods = {0};
 534        u32 i;
 535
 536        /* Update producers */
 537        rx_prods.bd_prod = bd_prod;
 538        rx_prods.cqe_prod = rx_comp_prod;
 539        rx_prods.sge_prod = rx_sge_prod;
 540
 541        /* Make sure that the BD and SGE data is updated before updating the
 542         * producers since FW might read the BD/SGE right after the producer
 543         * is updated.
 544         * This is only applicable for weak-ordered memory model archs such
 545         * as IA-64. The following barrier is also mandatory since FW will
 546         * assumes BDs must have buffers.
 547         */
 548        wmb();
 549
 550        for (i = 0; i < sizeof(rx_prods)/4; i++)
 551                REG_WR(bp, fp->ustorm_rx_prods_offset + i*4,
 552                       ((u32 *)&rx_prods)[i]);
 553
 554        mmiowb(); /* keep prod updates ordered */
 555
 556        DP(NETIF_MSG_RX_STATUS,
 557           "queue[%d]:  wrote  bd_prod %u  cqe_prod %u  sge_prod %u\n",
 558           fp->index, bd_prod, rx_comp_prod, rx_sge_prod);
 559}
 560
 561/* reload helper */
 562int bnx2x_reload_if_running(struct net_device *dev);
 563
 564int bnx2x_change_mac_addr(struct net_device *dev, void *p);
 565
 566/* NAPI poll Rx part */
 567int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget);
 568
 569/* NAPI poll Tx part */
 570int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata);
 571
 572/* suspend/resume callbacks */
 573int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state);
 574int bnx2x_resume(struct pci_dev *pdev);
 575
 576/* Release IRQ vectors */
 577void bnx2x_free_irq(struct bnx2x *bp);
 578
 579void bnx2x_free_fp_mem_cnic(struct bnx2x *bp);
 580void bnx2x_free_fp_mem(struct bnx2x *bp);
 581int bnx2x_alloc_fp_mem_cnic(struct bnx2x *bp);
 582int bnx2x_alloc_fp_mem(struct bnx2x *bp);
 583void bnx2x_init_rx_rings(struct bnx2x *bp);
 584void bnx2x_init_rx_rings_cnic(struct bnx2x *bp);
 585void bnx2x_free_skbs_cnic(struct bnx2x *bp);
 586void bnx2x_free_skbs(struct bnx2x *bp);
 587void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw);
 588void bnx2x_netif_start(struct bnx2x *bp);
 589int bnx2x_load_cnic(struct bnx2x *bp);
 590
 591/**
 592 * bnx2x_enable_msix - set msix configuration.
 593 *
 594 * @bp:         driver handle
 595 *
 596 * fills msix_table, requests vectors, updates num_queues
 597 * according to number of available vectors.
 598 */
 599int bnx2x_enable_msix(struct bnx2x *bp);
 600
 601/**
 602 * bnx2x_enable_msi - request msi mode from OS, updated internals accordingly
 603 *
 604 * @bp:         driver handle
 605 */
 606int bnx2x_enable_msi(struct bnx2x *bp);
 607
 608/**
 609 * bnx2x_poll - NAPI callback
 610 *
 611 * @napi:       napi structure
 612 * @budget:
 613 *
 614 */
 615int bnx2x_poll(struct napi_struct *napi, int budget);
 616
 617/**
 618 * bnx2x_low_latency_recv - LL callback
 619 *
 620 * @napi:       napi structure
 621 */
 622int bnx2x_low_latency_recv(struct napi_struct *napi);
 623
 624/**
 625 * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure
 626 *
 627 * @bp:         driver handle
 628 */
 629int bnx2x_alloc_mem_bp(struct bnx2x *bp);
 630
 631/**
 632 * bnx2x_free_mem_bp - release memories outsize main driver structure
 633 *
 634 * @bp:         driver handle
 635 */
 636void bnx2x_free_mem_bp(struct bnx2x *bp);
 637
 638/**
 639 * bnx2x_change_mtu - change mtu netdev callback
 640 *
 641 * @dev:        net device
 642 * @new_mtu:    requested mtu
 643 *
 644 */
 645int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
 646
 647#ifdef NETDEV_FCOE_WWNN
 648/**
 649 * bnx2x_fcoe_get_wwn - return the requested WWN value for this port
 650 *
 651 * @dev:        net_device
 652 * @wwn:        output buffer
 653 * @type:       WWN type: NETDEV_FCOE_WWNN (node) or NETDEV_FCOE_WWPN (port)
 654 *
 655 */
 656int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type);
 657#endif
 658
 659netdev_features_t bnx2x_fix_features(struct net_device *dev,
 660                                     netdev_features_t features);
 661int bnx2x_set_features(struct net_device *dev, netdev_features_t features);
 662
 663/**
 664 * bnx2x_tx_timeout - tx timeout netdev callback
 665 *
 666 * @dev:        net device
 667 */
 668void bnx2x_tx_timeout(struct net_device *dev);
 669
 670/*********************** Inlines **********************************/
 671/*********************** Fast path ********************************/
 672static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp)
 673{
 674        barrier(); /* status block is written to by the chip */
 675        fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID];
 676}
 677
 678static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id,
 679                                        u8 segment, u16 index, u8 op,
 680                                        u8 update, u32 igu_addr)
 681{
 682        struct igu_regular cmd_data = {0};
 683
 684        cmd_data.sb_id_and_flags =
 685                        ((index << IGU_REGULAR_SB_INDEX_SHIFT) |
 686                         (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) |
 687                         (update << IGU_REGULAR_BUPDATE_SHIFT) |
 688                         (op << IGU_REGULAR_ENABLE_INT_SHIFT));
 689
 690        DP(NETIF_MSG_INTR, "write 0x%08x to IGU addr 0x%x\n",
 691           cmd_data.sb_id_and_flags, igu_addr);
 692        REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags);
 693
 694        /* Make sure that ACK is written */
 695        mmiowb();
 696        barrier();
 697}
 698
 699static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id,
 700                                   u8 storm, u16 index, u8 op, u8 update)
 701{
 702        u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
 703                       COMMAND_REG_INT_ACK);
 704        struct igu_ack_register igu_ack;
 705
 706        igu_ack.status_block_index = index;
 707        igu_ack.sb_id_and_flags =
 708                        ((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) |
 709                         (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) |
 710                         (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) |
 711                         (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT));
 712
 713        REG_WR(bp, hc_addr, (*(u32 *)&igu_ack));
 714
 715        /* Make sure that ACK is written */
 716        mmiowb();
 717        barrier();
 718}
 719
 720static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm,
 721                                u16 index, u8 op, u8 update)
 722{
 723        if (bp->common.int_block == INT_BLOCK_HC)
 724                bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update);
 725        else {
 726                u8 segment;
 727
 728                if (CHIP_INT_MODE_IS_BC(bp))
 729                        segment = storm;
 730                else if (igu_sb_id != bp->igu_dsb_id)
 731                        segment = IGU_SEG_ACCESS_DEF;
 732                else if (storm == ATTENTION_ID)
 733                        segment = IGU_SEG_ACCESS_ATTN;
 734                else
 735                        segment = IGU_SEG_ACCESS_DEF;
 736                bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update);
 737        }
 738}
 739
 740static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp)
 741{
 742        u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 +
 743                       COMMAND_REG_SIMD_MASK);
 744        u32 result = REG_RD(bp, hc_addr);
 745
 746        barrier();
 747        return result;
 748}
 749
 750static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp)
 751{
 752        u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8);
 753        u32 result = REG_RD(bp, igu_addr);
 754
 755        DP(NETIF_MSG_INTR, "read 0x%08x from IGU addr 0x%x\n",
 756           result, igu_addr);
 757
 758        barrier();
 759        return result;
 760}
 761
 762static inline u16 bnx2x_ack_int(struct bnx2x *bp)
 763{
 764        barrier();
 765        if (bp->common.int_block == INT_BLOCK_HC)
 766                return bnx2x_hc_ack_int(bp);
 767        else
 768                return bnx2x_igu_ack_int(bp);
 769}
 770
 771static inline int bnx2x_has_tx_work_unload(struct bnx2x_fp_txdata *txdata)
 772{
 773        /* Tell compiler that consumer and producer can change */
 774        barrier();
 775        return txdata->tx_pkt_prod != txdata->tx_pkt_cons;
 776}
 777
 778static inline u16 bnx2x_tx_avail(struct bnx2x *bp,
 779                                 struct bnx2x_fp_txdata *txdata)
 780{
 781        s16 used;
 782        u16 prod;
 783        u16 cons;
 784
 785        prod = txdata->tx_bd_prod;
 786        cons = txdata->tx_bd_cons;
 787
 788        used = SUB_S16(prod, cons);
 789
 790#ifdef BNX2X_STOP_ON_ERROR
 791        WARN_ON(used < 0);
 792        WARN_ON(used > txdata->tx_ring_size);
 793        WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL);
 794#endif
 795
 796        return (s16)(txdata->tx_ring_size) - used;
 797}
 798
 799static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata)
 800{
 801        u16 hw_cons;
 802
 803        /* Tell compiler that status block fields can change */
 804        barrier();
 805        hw_cons = le16_to_cpu(*txdata->tx_cons_sb);
 806        return hw_cons != txdata->tx_pkt_cons;
 807}
 808
 809static inline bool bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
 810{
 811        u8 cos;
 812        for_each_cos_in_tx_queue(fp, cos)
 813                if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos]))
 814                        return true;
 815        return false;
 816}
 817
 818#define BNX2X_IS_CQE_COMPLETED(cqe_fp) (cqe_fp->marker == 0x0)
 819#define BNX2X_SEED_CQE(cqe_fp) (cqe_fp->marker = 0xFFFFFFFF)
 820static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp)
 821{
 822        u16 cons;
 823        union eth_rx_cqe *cqe;
 824        struct eth_fast_path_rx_cqe *cqe_fp;
 825
 826        cons = RCQ_BD(fp->rx_comp_cons);
 827        cqe = &fp->rx_comp_ring[cons];
 828        cqe_fp = &cqe->fast_path_cqe;
 829        return BNX2X_IS_CQE_COMPLETED(cqe_fp);
 830}
 831
 832/**
 833 * bnx2x_tx_disable - disables tx from stack point of view
 834 *
 835 * @bp:         driver handle
 836 */
 837static inline void bnx2x_tx_disable(struct bnx2x *bp)
 838{
 839        netif_tx_disable(bp->dev);
 840        netif_carrier_off(bp->dev);
 841}
 842
 843static inline void bnx2x_free_rx_sge(struct bnx2x *bp,
 844                                     struct bnx2x_fastpath *fp, u16 index)
 845{
 846        struct sw_rx_page *sw_buf = &fp->rx_page_ring[index];
 847        struct page *page = sw_buf->page;
 848        struct eth_rx_sge *sge = &fp->rx_sge_ring[index];
 849
 850        /* Skip "next page" elements */
 851        if (!page)
 852                return;
 853
 854        dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping),
 855                       SGE_PAGES, DMA_FROM_DEVICE);
 856        __free_pages(page, PAGES_PER_SGE_SHIFT);
 857
 858        sw_buf->page = NULL;
 859        sge->addr_hi = 0;
 860        sge->addr_lo = 0;
 861}
 862
 863static inline void bnx2x_add_all_napi_cnic(struct bnx2x *bp)
 864{
 865        int i;
 866
 867        /* Add NAPI objects */
 868        for_each_rx_queue_cnic(bp, i) {
 869                netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
 870                               bnx2x_poll, NAPI_POLL_WEIGHT);
 871                napi_hash_add(&bnx2x_fp(bp, i, napi));
 872        }
 873}
 874
 875static inline void bnx2x_add_all_napi(struct bnx2x *bp)
 876{
 877        int i;
 878
 879        /* Add NAPI objects */
 880        for_each_eth_queue(bp, i) {
 881                netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
 882                               bnx2x_poll, NAPI_POLL_WEIGHT);
 883                napi_hash_add(&bnx2x_fp(bp, i, napi));
 884        }
 885}
 886
 887static inline void bnx2x_del_all_napi_cnic(struct bnx2x *bp)
 888{
 889        int i;
 890
 891        for_each_rx_queue_cnic(bp, i) {
 892                napi_hash_del(&bnx2x_fp(bp, i, napi));
 893                netif_napi_del(&bnx2x_fp(bp, i, napi));
 894        }
 895}
 896
 897static inline void bnx2x_del_all_napi(struct bnx2x *bp)
 898{
 899        int i;
 900
 901        for_each_eth_queue(bp, i) {
 902                napi_hash_del(&bnx2x_fp(bp, i, napi));
 903                netif_napi_del(&bnx2x_fp(bp, i, napi));
 904        }
 905}
 906
 907int bnx2x_set_int_mode(struct bnx2x *bp);
 908
 909static inline void bnx2x_disable_msi(struct bnx2x *bp)
 910{
 911        if (bp->flags & USING_MSIX_FLAG) {
 912                pci_disable_msix(bp->pdev);
 913                bp->flags &= ~(USING_MSIX_FLAG | USING_SINGLE_MSIX_FLAG);
 914        } else if (bp->flags & USING_MSI_FLAG) {
 915                pci_disable_msi(bp->pdev);
 916                bp->flags &= ~USING_MSI_FLAG;
 917        }
 918}
 919
 920static inline int bnx2x_calc_num_queues(struct bnx2x *bp)
 921{
 922        return  num_queues ?
 923                 min_t(int, num_queues, BNX2X_MAX_QUEUES(bp)) :
 924                 min_t(int, netif_get_num_default_rss_queues(),
 925                       BNX2X_MAX_QUEUES(bp));
 926}
 927
 928static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp)
 929{
 930        int i, j;
 931
 932        for (i = 1; i <= NUM_RX_SGE_PAGES; i++) {
 933                int idx = RX_SGE_CNT * i - 1;
 934
 935                for (j = 0; j < 2; j++) {
 936                        BIT_VEC64_CLEAR_BIT(fp->sge_mask, idx);
 937                        idx--;
 938                }
 939        }
 940}
 941
 942static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp)
 943{
 944        /* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */
 945        memset(fp->sge_mask, 0xff, sizeof(fp->sge_mask));
 946
 947        /* Clear the two last indices in the page to 1:
 948           these are the indices that correspond to the "next" element,
 949           hence will never be indicated and should be removed from
 950           the calculations. */
 951        bnx2x_clear_sge_mask_next_elems(fp);
 952}
 953
 954/* note that we are not allocating a new buffer,
 955 * we are just moving one from cons to prod
 956 * we are not creating a new mapping,
 957 * so there is no need to check for dma_mapping_error().
 958 */
 959static inline void bnx2x_reuse_rx_data(struct bnx2x_fastpath *fp,
 960                                      u16 cons, u16 prod)
 961{
 962        struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons];
 963        struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod];
 964        struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons];
 965        struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod];
 966
 967        dma_unmap_addr_set(prod_rx_buf, mapping,
 968                           dma_unmap_addr(cons_rx_buf, mapping));
 969        prod_rx_buf->data = cons_rx_buf->data;
 970        *prod_bd = *cons_bd;
 971}
 972
 973/************************* Init ******************************************/
 974
 975/* returns func by VN for current port */
 976static inline int func_by_vn(struct bnx2x *bp, int vn)
 977{
 978        return 2 * vn + BP_PORT(bp);
 979}
 980
 981static inline int bnx2x_config_rss_eth(struct bnx2x *bp, bool config_hash)
 982{
 983        return bnx2x_config_rss_pf(bp, &bp->rss_conf_obj, config_hash);
 984}
 985
 986/**
 987 * bnx2x_func_start - init function
 988 *
 989 * @bp:         driver handle
 990 *
 991 * Must be called before sending CLIENT_SETUP for the first client.
 992 */
 993static inline int bnx2x_func_start(struct bnx2x *bp)
 994{
 995        struct bnx2x_func_state_params func_params = {NULL};
 996        struct bnx2x_func_start_params *start_params =
 997                &func_params.params.start;
 998
 999        /* Prepare parameters for function state transitions */
1000        __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
1001
1002        func_params.f_obj = &bp->func_obj;
1003        func_params.cmd = BNX2X_F_CMD_START;
1004
1005        /* Function parameters */
1006        start_params->mf_mode = bp->mf_mode;
1007        start_params->sd_vlan_tag = bp->mf_ov;
1008
1009        if (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
1010                start_params->network_cos_mode = STATIC_COS;
1011        else /* CHIP_IS_E1X */
1012                start_params->network_cos_mode = FW_WRR;
1013
1014        start_params->gre_tunnel_mode = IPGRE_TUNNEL;
1015        start_params->gre_tunnel_rss = GRE_INNER_HEADERS_RSS;
1016
1017        return bnx2x_func_state_change(bp, &func_params);
1018}
1019
1020/**
1021 * bnx2x_set_fw_mac_addr - fill in a MAC address in FW format
1022 *
1023 * @fw_hi:      pointer to upper part
1024 * @fw_mid:     pointer to middle part
1025 * @fw_lo:      pointer to lower part
1026 * @mac:        pointer to MAC address
1027 */
1028static inline void bnx2x_set_fw_mac_addr(__le16 *fw_hi, __le16 *fw_mid,
1029                                         __le16 *fw_lo, u8 *mac)
1030{
1031        ((u8 *)fw_hi)[0]  = mac[1];
1032        ((u8 *)fw_hi)[1]  = mac[0];
1033        ((u8 *)fw_mid)[0] = mac[3];
1034        ((u8 *)fw_mid)[1] = mac[2];
1035        ((u8 *)fw_lo)[0]  = mac[5];
1036        ((u8 *)fw_lo)[1]  = mac[4];
1037}
1038
1039static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp,
1040                                           struct bnx2x_fastpath *fp, int last)
1041{
1042        int i;
1043
1044        if (fp->disable_tpa)
1045                return;
1046
1047        for (i = 0; i < last; i++)
1048                bnx2x_free_rx_sge(bp, fp, i);
1049}
1050
1051static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp)
1052{
1053        int i;
1054
1055        for (i = 1; i <= NUM_RX_RINGS; i++) {
1056                struct eth_rx_bd *rx_bd;
1057
1058                rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2];
1059                rx_bd->addr_hi =
1060                        cpu_to_le32(U64_HI(fp->rx_desc_mapping +
1061                                    BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
1062                rx_bd->addr_lo =
1063                        cpu_to_le32(U64_LO(fp->rx_desc_mapping +
1064                                    BCM_PAGE_SIZE*(i % NUM_RX_RINGS)));
1065        }
1066}
1067
1068/* Statistics ID are global per chip/path, while Client IDs for E1x are per
1069 * port.
1070 */
1071static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp)
1072{
1073        struct bnx2x *bp = fp->bp;
1074        if (!CHIP_IS_E1x(bp)) {
1075                /* there are special statistics counters for FCoE 136..140 */
1076                if (IS_FCOE_FP(fp))
1077                        return bp->cnic_base_cl_id + (bp->pf_num >> 1);
1078                return fp->cl_id;
1079        }
1080        return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x;
1081}
1082
1083static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp,
1084                                               bnx2x_obj_type obj_type)
1085{
1086        struct bnx2x *bp = fp->bp;
1087
1088        /* Configure classification DBs */
1089        bnx2x_init_mac_obj(bp, &bnx2x_sp_obj(bp, fp).mac_obj, fp->cl_id,
1090                           fp->cid, BP_FUNC(bp), bnx2x_sp(bp, mac_rdata),
1091                           bnx2x_sp_mapping(bp, mac_rdata),
1092                           BNX2X_FILTER_MAC_PENDING,
1093                           &bp->sp_state, obj_type,
1094                           &bp->macs_pool);
1095}
1096
1097/**
1098 * bnx2x_get_path_func_num - get number of active functions
1099 *
1100 * @bp:         driver handle
1101 *
1102 * Calculates the number of active (not hidden) functions on the
1103 * current path.
1104 */
1105static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
1106{
1107        u8 func_num = 0, i;
1108
1109        /* 57710 has only one function per-port */
1110        if (CHIP_IS_E1(bp))
1111                return 1;
1112
1113        /* Calculate a number of functions enabled on the current
1114         * PATH/PORT.
1115         */
1116        if (CHIP_REV_IS_SLOW(bp)) {
1117                if (IS_MF(bp))
1118                        func_num = 4;
1119                else
1120                        func_num = 2;
1121        } else {
1122                for (i = 0; i < E1H_FUNC_MAX / 2; i++) {
1123                        u32 func_config =
1124                                MF_CFG_RD(bp,
1125                                          func_mf_config[BP_PORT(bp) + 2 * i].
1126                                          config);
1127                        func_num +=
1128                                ((func_config & FUNC_MF_CFG_FUNC_HIDE) ? 0 : 1);
1129                }
1130        }
1131
1132        WARN_ON(!func_num);
1133
1134        return func_num;
1135}
1136
1137static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
1138{
1139        /* RX_MODE controlling object */
1140        bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
1141
1142        /* multicast configuration controlling object */
1143        bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
1144                             BP_FUNC(bp), BP_FUNC(bp),
1145                             bnx2x_sp(bp, mcast_rdata),
1146                             bnx2x_sp_mapping(bp, mcast_rdata),
1147                             BNX2X_FILTER_MCAST_PENDING, &bp->sp_state,
1148                             BNX2X_OBJ_TYPE_RX);
1149
1150        /* Setup CAM credit pools */
1151        bnx2x_init_mac_credit_pool(bp, &bp->macs_pool, BP_FUNC(bp),
1152                                   bnx2x_get_path_func_num(bp));
1153
1154        bnx2x_init_vlan_credit_pool(bp, &bp->vlans_pool, BP_ABS_FUNC(bp)>>1,
1155                                    bnx2x_get_path_func_num(bp));
1156
1157        /* RSS configuration object */
1158        bnx2x_init_rss_config_obj(bp, &bp->rss_conf_obj, bp->fp->cl_id,
1159                                  bp->fp->cid, BP_FUNC(bp), BP_FUNC(bp),
1160                                  bnx2x_sp(bp, rss_rdata),
1161                                  bnx2x_sp_mapping(bp, rss_rdata),
1162                                  BNX2X_FILTER_RSS_CONF_PENDING, &bp->sp_state,
1163                                  BNX2X_OBJ_TYPE_RX);
1164}
1165
1166static inline u8 bnx2x_fp_qzone_id(struct bnx2x_fastpath *fp)
1167{
1168        if (CHIP_IS_E1x(fp->bp))
1169                return fp->cl_id + BP_PORT(fp->bp) * ETH_MAX_RX_CLIENTS_E1H;
1170        else
1171                return fp->cl_id;
1172}
1173
1174u32 bnx2x_rx_ustorm_prods_offset(struct bnx2x_fastpath *fp);
1175
1176static inline void bnx2x_init_txdata(struct bnx2x *bp,
1177                                     struct bnx2x_fp_txdata *txdata, u32 cid,
1178                                     int txq_index, __le16 *tx_cons_sb,
1179                                     struct bnx2x_fastpath *fp)
1180{
1181        txdata->cid = cid;
1182        txdata->txq_index = txq_index;
1183        txdata->tx_cons_sb = tx_cons_sb;
1184        txdata->parent_fp = fp;
1185        txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size;
1186
1187        DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n",
1188           txdata->cid, txdata->txq_index);
1189}
1190
1191static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx)
1192{
1193        return bp->cnic_base_cl_id + cl_idx +
1194                (bp->pf_num >> 1) * BNX2X_MAX_CNIC_ETH_CL_ID_IDX;
1195}
1196
1197static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp)
1198{
1199        /* the 'first' id is allocated for the cnic */
1200        return bp->base_fw_ndsb;
1201}
1202
1203static inline u8 bnx2x_cnic_igu_sb_id(struct bnx2x *bp)
1204{
1205        return bp->igu_base_sb;
1206}
1207
1208static inline void bnx2x_init_fcoe_fp(struct bnx2x *bp)
1209{
1210        struct bnx2x_fastpath *fp = bnx2x_fcoe_fp(bp);
1211        unsigned long q_type = 0;
1212
1213        bnx2x_fcoe(bp, rx_queue) = BNX2X_NUM_ETH_QUEUES(bp);
1214        bnx2x_fcoe(bp, cl_id) = bnx2x_cnic_eth_cl_id(bp,
1215                                                     BNX2X_FCOE_ETH_CL_ID_IDX);
1216        bnx2x_fcoe(bp, cid) = BNX2X_FCOE_ETH_CID(bp);
1217        bnx2x_fcoe(bp, fw_sb_id) = DEF_SB_ID;
1218        bnx2x_fcoe(bp, igu_sb_id) = bp->igu_dsb_id;
1219        bnx2x_fcoe(bp, rx_cons_sb) = BNX2X_FCOE_L2_RX_INDEX;
1220        bnx2x_init_txdata(bp, bnx2x_fcoe(bp, txdata_ptr[0]),
1221                          fp->cid, FCOE_TXQ_IDX(bp), BNX2X_FCOE_L2_TX_INDEX,
1222                          fp);
1223
1224        DP(NETIF_MSG_IFUP, "created fcoe tx data (fp index %d)\n", fp->index);
1225
1226        /* qZone id equals to FW (per path) client id */
1227        bnx2x_fcoe(bp, cl_qzone_id) = bnx2x_fp_qzone_id(fp);
1228        /* init shortcut */
1229        bnx2x_fcoe(bp, ustorm_rx_prods_offset) =
1230                bnx2x_rx_ustorm_prods_offset(fp);
1231
1232        /* Configure Queue State object */
1233        __set_bit(BNX2X_Q_TYPE_HAS_RX, &q_type);
1234        __set_bit(BNX2X_Q_TYPE_HAS_TX, &q_type);
1235
1236        /* No multi-CoS for FCoE L2 client */
1237        BUG_ON(fp->max_cos != 1);
1238
1239        bnx2x_init_queue_obj(bp, &bnx2x_sp_obj(bp, fp).q_obj, fp->cl_id,
1240                             &fp->cid, 1, BP_FUNC(bp), bnx2x_sp(bp, q_rdata),
1241                             bnx2x_sp_mapping(bp, q_rdata), q_type);
1242
1243        DP(NETIF_MSG_IFUP,
1244           "queue[%d]: bnx2x_init_sb(%p,%p) cl_id %d fw_sb %d igu_sb %d\n",
1245           fp->index, bp, fp->status_blk.e2_sb, fp->cl_id, fp->fw_sb_id,
1246           fp->igu_sb_id);
1247}
1248
1249static inline int bnx2x_clean_tx_queue(struct bnx2x *bp,
1250                                       struct bnx2x_fp_txdata *txdata)
1251{
1252        int cnt = 1000;
1253
1254        while (bnx2x_has_tx_work_unload(txdata)) {
1255                if (!cnt) {
1256                        BNX2X_ERR("timeout waiting for queue[%d]: txdata->tx_pkt_prod(%d) != txdata->tx_pkt_cons(%d)\n",
1257                                  txdata->txq_index, txdata->tx_pkt_prod,
1258                                  txdata->tx_pkt_cons);
1259#ifdef BNX2X_STOP_ON_ERROR
1260                        bnx2x_panic();
1261                        return -EBUSY;
1262#else
1263                        break;
1264#endif
1265                }
1266                cnt--;
1267                usleep_range(1000, 2000);
1268        }
1269
1270        return 0;
1271}
1272
1273int bnx2x_get_link_cfg_idx(struct bnx2x *bp);
1274
1275static inline void __storm_memset_struct(struct bnx2x *bp,
1276                                         u32 addr, size_t size, u32 *data)
1277{
1278        int i;
1279        for (i = 0; i < size/4; i++)
1280                REG_WR(bp, addr + (i * 4), data[i]);
1281}
1282
1283/**
1284 * bnx2x_wait_sp_comp - wait for the outstanding SP commands.
1285 *
1286 * @bp:         driver handle
1287 * @mask:       bits that need to be cleared
1288 */
1289static inline bool bnx2x_wait_sp_comp(struct bnx2x *bp, unsigned long mask)
1290{
1291        int tout = 5000; /* Wait for 5 secs tops */
1292
1293        while (tout--) {
1294                smp_mb();
1295                netif_addr_lock_bh(bp->dev);
1296                if (!(bp->sp_state & mask)) {
1297                        netif_addr_unlock_bh(bp->dev);
1298                        return true;
1299                }
1300                netif_addr_unlock_bh(bp->dev);
1301
1302                usleep_range(1000, 2000);
1303        }
1304
1305        smp_mb();
1306
1307        netif_addr_lock_bh(bp->dev);
1308        if (bp->sp_state & mask) {
1309                BNX2X_ERR("Filtering completion timed out. sp_state 0x%lx, mask 0x%lx\n",
1310                          bp->sp_state, mask);
1311                netif_addr_unlock_bh(bp->dev);
1312                return false;
1313        }
1314        netif_addr_unlock_bh(bp->dev);
1315
1316        return true;
1317}
1318
1319/**
1320 * bnx2x_set_ctx_validation - set CDU context validation values
1321 *
1322 * @bp:         driver handle
1323 * @cxt:        context of the connection on the host memory
1324 * @cid:        SW CID of the connection to be configured
1325 */
1326void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt,
1327                              u32 cid);
1328
1329void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id,
1330                                    u8 sb_index, u8 disable, u16 usec);
1331void bnx2x_acquire_phy_lock(struct bnx2x *bp);
1332void bnx2x_release_phy_lock(struct bnx2x *bp);
1333
1334/**
1335 * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration.
1336 *
1337 * @bp:         driver handle
1338 * @mf_cfg:     MF configuration
1339 *
1340 */
1341static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg)
1342{
1343        u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >>
1344                              FUNC_MF_CFG_MAX_BW_SHIFT;
1345        if (!max_cfg) {
1346                DP(NETIF_MSG_IFUP | BNX2X_MSG_ETHTOOL,
1347                   "Max BW configured to 0 - using 100 instead\n");
1348                max_cfg = 100;
1349        }
1350        return max_cfg;
1351}
1352
1353/* checks if HW supports GRO for given MTU */
1354static inline bool bnx2x_mtu_allows_gro(int mtu)
1355{
1356        /* gro frags per page */
1357        int fpp = SGE_PAGE_SIZE / (mtu - ETH_MAX_TPA_HEADER_SIZE);
1358
1359        /*
1360         * 1. Number of frags should not grow above MAX_SKB_FRAGS
1361         * 2. Frag must fit the page
1362         */
1363        return mtu <= SGE_PAGE_SIZE && (U_ETH_SGL_SIZE * fpp) <= MAX_SKB_FRAGS;
1364}
1365
1366/**
1367 * bnx2x_get_iscsi_info - update iSCSI params according to licensing info.
1368 *
1369 * @bp:         driver handle
1370 *
1371 */
1372void bnx2x_get_iscsi_info(struct bnx2x *bp);
1373
1374/**
1375 * bnx2x_link_sync_notify - send notification to other functions.
1376 *
1377 * @bp:         driver handle
1378 *
1379 */
1380static inline void bnx2x_link_sync_notify(struct bnx2x *bp)
1381{
1382        int func;
1383        int vn;
1384
1385        /* Set the attention towards other drivers on the same port */
1386        for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) {
1387                if (vn == BP_VN(bp))
1388                        continue;
1389
1390                func = func_by_vn(bp, vn);
1391                REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 +
1392                       (LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1);
1393        }
1394}
1395
1396/**
1397 * bnx2x_update_drv_flags - update flags in shmem
1398 *
1399 * @bp:         driver handle
1400 * @flags:      flags to update
1401 * @set:        set or clear
1402 *
1403 */
1404static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set)
1405{
1406        if (SHMEM2_HAS(bp, drv_flags)) {
1407                u32 drv_flags;
1408                bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
1409                drv_flags = SHMEM2_RD(bp, drv_flags);
1410
1411                if (set)
1412                        SET_FLAGS(drv_flags, flags);
1413                else
1414                        RESET_FLAGS(drv_flags, flags);
1415
1416                SHMEM2_WR(bp, drv_flags, drv_flags);
1417                DP(NETIF_MSG_IFUP, "drv_flags 0x%08x\n", drv_flags);
1418                bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS);
1419        }
1420}
1421
1422static inline bool bnx2x_is_valid_ether_addr(struct bnx2x *bp, u8 *addr)
1423{
1424        if (is_valid_ether_addr(addr) ||
1425            (is_zero_ether_addr(addr) &&
1426             (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))))
1427                return true;
1428
1429        return false;
1430}
1431
1432/**
1433 * bnx2x_fill_fw_str - Fill buffer with FW version string
1434 *
1435 * @bp:        driver handle
1436 * @buf:       character buffer to fill with the fw name
1437 * @buf_len:   length of the above buffer
1438 *
1439 */
1440void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len);
1441
1442int bnx2x_drain_tx_queues(struct bnx2x *bp);
1443void bnx2x_squeeze_objects(struct bnx2x *bp);
1444
1445#endif /* BNX2X_CMN_H */
1446