1 /* bnx2x_cmn.h: QLogic Everest network driver. 2 * 3 * Copyright (c) 2007-2013 Broadcom Corporation 4 * Copyright (c) 2014 QLogic Corporation 5 * All rights reserved 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation. 10 * 11 * Maintained by: Ariel Elior <ariel.elior@qlogic.com> 12 * Written by: Eliezer Tamir 13 * Based on code from Michael Chan's bnx2 driver 14 * UDP CSUM errata workaround by Arik Gendelman 15 * Slowpath and fastpath rework by Vladislav Zolotarov 16 * Statistics and Link management by Yitchak Gertner 17 * 18 */ 19 #ifndef BNX2X_CMN_H 20 #define BNX2X_CMN_H 21 22 #include <linux/types.h> 23 #include <linux/pci.h> 24 #include <linux/netdevice.h> 25 #include <linux/etherdevice.h> 26 #include <linux/irq.h> 27 28 #include "bnx2x.h" 29 #include "bnx2x_sriov.h" 30 31 /* This is used as a replacement for an MCP if it's not present */ 32 extern int bnx2x_load_count[2][3]; /* per-path: 0-common, 1-port0, 2-port1 */ 33 extern int bnx2x_num_queues; 34 35 /************************ Macros ********************************/ 36 #define BNX2X_PCI_FREE(x, y, size) \ 37 do { \ 38 if (x) { \ 39 dma_free_coherent(&bp->pdev->dev, size, (void *)x, y); \ 40 x = NULL; \ 41 y = 0; \ 42 } \ 43 } while (0) 44 45 #define BNX2X_FREE(x) \ 46 do { \ 47 if (x) { \ 48 kfree((void *)x); \ 49 x = NULL; \ 50 } \ 51 } while (0) 52 53 #define BNX2X_PCI_ALLOC(y, size) \ 54 ({ \ 55 void *x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \ 56 if (x) \ 57 DP(NETIF_MSG_HW, \ 58 "BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n", \ 59 (unsigned long long)(*y), x); \ 60 x; \ 61 }) 62 #define BNX2X_PCI_FALLOC(y, size) \ 63 ({ \ 64 void *x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \ 65 if (x) { \ 66 memset(x, 0xff, size); \ 67 DP(NETIF_MSG_HW, \ 68 "BNX2X_PCI_FALLOC: Physical %Lx Virtual %p\n", \ 69 (unsigned long long)(*y), x); \ 70 } \ 71 x; \ 72 }) 73 74 /*********************** Interfaces **************************** 75 * Functions that need to be implemented by each driver version 76 */ 77 /* Init */ 78 79 /** 80 * bnx2x_send_unload_req - request unload mode from the MCP. 81 * 82 * @bp: driver handle 83 * @unload_mode: requested function's unload mode 84 * 85 * Return unload mode returned by the MCP: COMMON, PORT or FUNC. 86 */ 87 u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode); 88 89 /** 90 * bnx2x_send_unload_done - send UNLOAD_DONE command to the MCP. 91 * 92 * @bp: driver handle 93 * @keep_link: true iff link should be kept up 94 */ 95 void bnx2x_send_unload_done(struct bnx2x *bp, bool keep_link); 96 97 /** 98 * bnx2x_config_rss_pf - configure RSS parameters in a PF. 99 * 100 * @bp: driver handle 101 * @rss_obj: RSS object to use 102 * @ind_table: indirection table to configure 103 * @config_hash: re-configure RSS hash keys configuration 104 * @enable: enabled or disabled configuration 105 */ 106 int bnx2x_rss(struct bnx2x *bp, struct bnx2x_rss_config_obj *rss_obj, 107 bool config_hash, bool enable); 108 109 /** 110 * bnx2x__init_func_obj - init function object 111 * 112 * @bp: driver handle 113 * 114 * Initializes the Function Object with the appropriate 115 * parameters which include a function slow path driver 116 * interface. 117 */ 118 void bnx2x__init_func_obj(struct bnx2x *bp); 119 120 /** 121 * bnx2x_setup_queue - setup eth queue. 122 * 123 * @bp: driver handle 124 * @fp: pointer to the fastpath structure 125 * @leading: boolean 126 * 127 */ 128 int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp, 129 bool leading); 130 131 /** 132 * bnx2x_setup_leading - bring up a leading eth queue. 133 * 134 * @bp: driver handle 135 */ 136 int bnx2x_setup_leading(struct bnx2x *bp); 137 138 /** 139 * bnx2x_fw_command - send the MCP a request 140 * 141 * @bp: driver handle 142 * @command: request 143 * @param: request's parameter 144 * 145 * block until there is a reply 146 */ 147 u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param); 148 149 /** 150 * bnx2x_initial_phy_init - initialize link parameters structure variables. 151 * 152 * @bp: driver handle 153 * @load_mode: current mode 154 */ 155 int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode); 156 157 /** 158 * bnx2x_link_set - configure hw according to link parameters structure. 159 * 160 * @bp: driver handle 161 */ 162 void bnx2x_link_set(struct bnx2x *bp); 163 164 /** 165 * bnx2x_force_link_reset - Forces link reset, and put the PHY 166 * in reset as well. 167 * 168 * @bp: driver handle 169 */ 170 void bnx2x_force_link_reset(struct bnx2x *bp); 171 172 /** 173 * bnx2x_link_test - query link status. 174 * 175 * @bp: driver handle 176 * @is_serdes: bool 177 * 178 * Returns 0 if link is UP. 179 */ 180 u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes); 181 182 /** 183 * bnx2x_drv_pulse - write driver pulse to shmem 184 * 185 * @bp: driver handle 186 * 187 * writes the value in bp->fw_drv_pulse_wr_seq to drv_pulse mbox 188 * in the shmem. 189 */ 190 void bnx2x_drv_pulse(struct bnx2x *bp); 191 192 /** 193 * bnx2x_igu_ack_sb - update IGU with current SB value 194 * 195 * @bp: driver handle 196 * @igu_sb_id: SB id 197 * @segment: SB segment 198 * @index: SB index 199 * @op: SB operation 200 * @update: is HW update required 201 */ 202 void bnx2x_igu_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 segment, 203 u16 index, u8 op, u8 update); 204 205 /* Disable transactions from chip to host */ 206 void bnx2x_pf_disable(struct bnx2x *bp); 207 int bnx2x_pretend_func(struct bnx2x *bp, u16 pretend_func_val); 208 209 /** 210 * bnx2x__link_status_update - handles link status change. 211 * 212 * @bp: driver handle 213 */ 214 void bnx2x__link_status_update(struct bnx2x *bp); 215 216 /** 217 * bnx2x_link_report - report link status to upper layer. 218 * 219 * @bp: driver handle 220 */ 221 void bnx2x_link_report(struct bnx2x *bp); 222 223 /* None-atomic version of bnx2x_link_report() */ 224 void __bnx2x_link_report(struct bnx2x *bp); 225 226 /** 227 * bnx2x_get_mf_speed - calculate MF speed. 228 * 229 * @bp: driver handle 230 * 231 * Takes into account current linespeed and MF configuration. 232 */ 233 u16 bnx2x_get_mf_speed(struct bnx2x *bp); 234 235 /** 236 * bnx2x_msix_sp_int - MSI-X slowpath interrupt handler 237 * 238 * @irq: irq number 239 * @dev_instance: private instance 240 */ 241 irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance); 242 243 /** 244 * bnx2x_interrupt - non MSI-X interrupt handler 245 * 246 * @irq: irq number 247 * @dev_instance: private instance 248 */ 249 irqreturn_t bnx2x_interrupt(int irq, void *dev_instance); 250 251 /** 252 * bnx2x_cnic_notify - send command to cnic driver 253 * 254 * @bp: driver handle 255 * @cmd: command 256 */ 257 int bnx2x_cnic_notify(struct bnx2x *bp, int cmd); 258 259 /** 260 * bnx2x_setup_cnic_irq_info - provides cnic with IRQ information 261 * 262 * @bp: driver handle 263 */ 264 void bnx2x_setup_cnic_irq_info(struct bnx2x *bp); 265 266 /** 267 * bnx2x_setup_cnic_info - provides cnic with updated info 268 * 269 * @bp: driver handle 270 */ 271 void bnx2x_setup_cnic_info(struct bnx2x *bp); 272 273 /** 274 * bnx2x_int_enable - enable HW interrupts. 275 * 276 * @bp: driver handle 277 */ 278 void bnx2x_int_enable(struct bnx2x *bp); 279 280 /** 281 * bnx2x_int_disable_sync - disable interrupts. 282 * 283 * @bp: driver handle 284 * @disable_hw: true, disable HW interrupts. 285 * 286 * This function ensures that there are no 287 * ISRs or SP DPCs (sp_task) are running after it returns. 288 */ 289 void bnx2x_int_disable_sync(struct bnx2x *bp, int disable_hw); 290 291 /** 292 * bnx2x_nic_init_cnic - init driver internals for cnic. 293 * 294 * @bp: driver handle 295 * @load_code: COMMON, PORT or FUNCTION 296 * 297 * Initializes: 298 * - rings 299 * - status blocks 300 * - etc. 301 */ 302 void bnx2x_nic_init_cnic(struct bnx2x *bp); 303 304 /** 305 * bnx2x_preirq_nic_init - init driver internals. 306 * 307 * @bp: driver handle 308 * 309 * Initializes: 310 * - fastpath object 311 * - fastpath rings 312 * etc. 313 */ 314 void bnx2x_pre_irq_nic_init(struct bnx2x *bp); 315 316 /** 317 * bnx2x_postirq_nic_init - init driver internals. 318 * 319 * @bp: driver handle 320 * @load_code: COMMON, PORT or FUNCTION 321 * 322 * Initializes: 323 * - status blocks 324 * - slowpath rings 325 * - etc. 326 */ 327 void bnx2x_post_irq_nic_init(struct bnx2x *bp, u32 load_code); 328 /** 329 * bnx2x_alloc_mem_cnic - allocate driver's memory for cnic. 330 * 331 * @bp: driver handle 332 */ 333 int bnx2x_alloc_mem_cnic(struct bnx2x *bp); 334 /** 335 * bnx2x_alloc_mem - allocate driver's memory. 336 * 337 * @bp: driver handle 338 */ 339 int bnx2x_alloc_mem(struct bnx2x *bp); 340 341 /** 342 * bnx2x_free_mem_cnic - release driver's memory for cnic. 343 * 344 * @bp: driver handle 345 */ 346 void bnx2x_free_mem_cnic(struct bnx2x *bp); 347 /** 348 * bnx2x_free_mem - release driver's memory. 349 * 350 * @bp: driver handle 351 */ 352 void bnx2x_free_mem(struct bnx2x *bp); 353 354 /** 355 * bnx2x_set_num_queues - set number of queues according to mode. 356 * 357 * @bp: driver handle 358 */ 359 void bnx2x_set_num_queues(struct bnx2x *bp); 360 361 /** 362 * bnx2x_chip_cleanup - cleanup chip internals. 363 * 364 * @bp: driver handle 365 * @unload_mode: COMMON, PORT, FUNCTION 366 * @keep_link: true iff link should be kept up. 367 * 368 * - Cleanup MAC configuration. 369 * - Closes clients. 370 * - etc. 371 */ 372 void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link); 373 374 /** 375 * bnx2x_acquire_hw_lock - acquire HW lock. 376 * 377 * @bp: driver handle 378 * @resource: resource bit which was locked 379 */ 380 int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource); 381 382 /** 383 * bnx2x_release_hw_lock - release HW lock. 384 * 385 * @bp: driver handle 386 * @resource: resource bit which was locked 387 */ 388 int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource); 389 390 /** 391 * bnx2x_release_leader_lock - release recovery leader lock 392 * 393 * @bp: driver handle 394 */ 395 int bnx2x_release_leader_lock(struct bnx2x *bp); 396 397 /** 398 * bnx2x_set_eth_mac - configure eth MAC address in the HW 399 * 400 * @bp: driver handle 401 * @set: set or clear 402 * 403 * Configures according to the value in netdev->dev_addr. 404 */ 405 int bnx2x_set_eth_mac(struct bnx2x *bp, bool set); 406 407 /** 408 * bnx2x_set_rx_mode - set MAC filtering configurations. 409 * 410 * @dev: netdevice 411 * 412 * called with netif_tx_lock from dev_mcast.c 413 * If bp->state is OPEN, should be called with 414 * netif_addr_lock_bh() 415 */ 416 void bnx2x_set_rx_mode_inner(struct bnx2x *bp); 417 418 /* Parity errors related */ 419 void bnx2x_set_pf_load(struct bnx2x *bp); 420 bool bnx2x_clear_pf_load(struct bnx2x *bp); 421 bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print); 422 bool bnx2x_reset_is_done(struct bnx2x *bp, int engine); 423 void bnx2x_set_reset_in_progress(struct bnx2x *bp); 424 void bnx2x_set_reset_global(struct bnx2x *bp); 425 void bnx2x_disable_close_the_gate(struct bnx2x *bp); 426 int bnx2x_init_hw_func_cnic(struct bnx2x *bp); 427 428 /** 429 * bnx2x_sp_event - handle ramrods completion. 430 * 431 * @fp: fastpath handle for the event 432 * @rr_cqe: eth_rx_cqe 433 */ 434 void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe); 435 436 /** 437 * bnx2x_ilt_set_info - prepare ILT configurations. 438 * 439 * @bp: driver handle 440 */ 441 void bnx2x_ilt_set_info(struct bnx2x *bp); 442 443 /** 444 * bnx2x_ilt_set_cnic_info - prepare ILT configurations for SRC 445 * and TM. 446 * 447 * @bp: driver handle 448 */ 449 void bnx2x_ilt_set_info_cnic(struct bnx2x *bp); 450 451 /** 452 * bnx2x_dcbx_init - initialize dcbx protocol. 453 * 454 * @bp: driver handle 455 */ 456 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem); 457 458 /** 459 * bnx2x_set_power_state - set power state to the requested value. 460 * 461 * @bp: driver handle 462 * @state: required state D0 or D3hot 463 * 464 * Currently only D0 and D3hot are supported. 465 */ 466 int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state); 467 468 /** 469 * bnx2x_update_max_mf_config - update MAX part of MF configuration in HW. 470 * 471 * @bp: driver handle 472 * @value: new value 473 */ 474 void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value); 475 /* Error handling */ 476 void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl); 477 478 /* dev_close main block */ 479 int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link); 480 481 /* dev_open main block */ 482 int bnx2x_nic_load(struct bnx2x *bp, int load_mode); 483 484 /* hard_xmit callback */ 485 netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev); 486 487 /* setup_tc callback */ 488 int bnx2x_setup_tc(struct net_device *dev, u8 num_tc); 489 int __bnx2x_setup_tc(struct net_device *dev, enum tc_setup_type type, 490 void *type_data); 491 492 int bnx2x_get_vf_config(struct net_device *dev, int vf, 493 struct ifla_vf_info *ivi); 494 int bnx2x_set_vf_mac(struct net_device *dev, int queue, u8 *mac); 495 int bnx2x_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos, 496 __be16 vlan_proto); 497 int bnx2x_set_vf_spoofchk(struct net_device *dev, int idx, bool val); 498 499 /* select_queue callback */ 500 u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb, 501 struct net_device *sb_dev, 502 select_queue_fallback_t fallback); 503 504 static inline void bnx2x_update_rx_prod(struct bnx2x *bp, 505 struct bnx2x_fastpath *fp, 506 u16 bd_prod, u16 rx_comp_prod, 507 u16 rx_sge_prod) 508 { 509 struct ustorm_eth_rx_producers rx_prods = {0}; 510 u32 i; 511 512 /* Update producers */ 513 rx_prods.bd_prod = bd_prod; 514 rx_prods.cqe_prod = rx_comp_prod; 515 rx_prods.sge_prod = rx_sge_prod; 516 517 /* Make sure that the BD and SGE data is updated before updating the 518 * producers since FW might read the BD/SGE right after the producer 519 * is updated. 520 * This is only applicable for weak-ordered memory model archs such 521 * as IA-64. The following barrier is also mandatory since FW will 522 * assumes BDs must have buffers. 523 */ 524 wmb(); 525 526 for (i = 0; i < sizeof(rx_prods)/4; i++) 527 REG_WR_RELAXED(bp, fp->ustorm_rx_prods_offset + i * 4, 528 ((u32 *)&rx_prods)[i]); 529 530 mmiowb(); /* keep prod updates ordered */ 531 532 DP(NETIF_MSG_RX_STATUS, 533 "queue[%d]: wrote bd_prod %u cqe_prod %u sge_prod %u\n", 534 fp->index, bd_prod, rx_comp_prod, rx_sge_prod); 535 } 536 537 /* reload helper */ 538 int bnx2x_reload_if_running(struct net_device *dev); 539 540 int bnx2x_change_mac_addr(struct net_device *dev, void *p); 541 542 /* NAPI poll Tx part */ 543 int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata); 544 545 /* suspend/resume callbacks */ 546 int bnx2x_suspend(struct pci_dev *pdev, pm_message_t state); 547 int bnx2x_resume(struct pci_dev *pdev); 548 549 /* Release IRQ vectors */ 550 void bnx2x_free_irq(struct bnx2x *bp); 551 552 void bnx2x_free_fp_mem(struct bnx2x *bp); 553 void bnx2x_init_rx_rings(struct bnx2x *bp); 554 void bnx2x_init_rx_rings_cnic(struct bnx2x *bp); 555 void bnx2x_free_skbs(struct bnx2x *bp); 556 void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw); 557 void bnx2x_netif_start(struct bnx2x *bp); 558 int bnx2x_load_cnic(struct bnx2x *bp); 559 560 /** 561 * bnx2x_enable_msix - set msix configuration. 562 * 563 * @bp: driver handle 564 * 565 * fills msix_table, requests vectors, updates num_queues 566 * according to number of available vectors. 567 */ 568 int bnx2x_enable_msix(struct bnx2x *bp); 569 570 /** 571 * bnx2x_enable_msi - request msi mode from OS, updated internals accordingly 572 * 573 * @bp: driver handle 574 */ 575 int bnx2x_enable_msi(struct bnx2x *bp); 576 577 /** 578 * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure 579 * 580 * @bp: driver handle 581 */ 582 int bnx2x_alloc_mem_bp(struct bnx2x *bp); 583 584 /** 585 * bnx2x_free_mem_bp - release memories outsize main driver structure 586 * 587 * @bp: driver handle 588 */ 589 void bnx2x_free_mem_bp(struct bnx2x *bp); 590 591 /** 592 * bnx2x_change_mtu - change mtu netdev callback 593 * 594 * @dev: net device 595 * @new_mtu: requested mtu 596 * 597 */ 598 int bnx2x_change_mtu(struct net_device *dev, int new_mtu); 599 600 #ifdef NETDEV_FCOE_WWNN 601 /** 602 * bnx2x_fcoe_get_wwn - return the requested WWN value for this port 603 * 604 * @dev: net_device 605 * @wwn: output buffer 606 * @type: WWN type: NETDEV_FCOE_WWNN (node) or NETDEV_FCOE_WWPN (port) 607 * 608 */ 609 int bnx2x_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type); 610 #endif 611 612 netdev_features_t bnx2x_fix_features(struct net_device *dev, 613 netdev_features_t features); 614 int bnx2x_set_features(struct net_device *dev, netdev_features_t features); 615 616 /** 617 * bnx2x_tx_timeout - tx timeout netdev callback 618 * 619 * @dev: net device 620 */ 621 void bnx2x_tx_timeout(struct net_device *dev); 622 623 /** bnx2x_get_c2s_mapping - read inner-to-outer vlan configuration 624 * c2s_map should have BNX2X_MAX_PRIORITY entries. 625 * @bp: driver handle 626 * @c2s_map: should have BNX2X_MAX_PRIORITY entries for mapping 627 * @c2s_default: entry for non-tagged configuration 628 */ 629 void bnx2x_get_c2s_mapping(struct bnx2x *bp, u8 *c2s_map, u8 *c2s_default); 630 631 /*********************** Inlines **********************************/ 632 /*********************** Fast path ********************************/ 633 static inline void bnx2x_update_fpsb_idx(struct bnx2x_fastpath *fp) 634 { 635 barrier(); /* status block is written to by the chip */ 636 fp->fp_hc_idx = fp->sb_running_index[SM_RX_ID]; 637 } 638 639 static inline void bnx2x_igu_ack_sb_gen(struct bnx2x *bp, u8 igu_sb_id, 640 u8 segment, u16 index, u8 op, 641 u8 update, u32 igu_addr) 642 { 643 struct igu_regular cmd_data = {0}; 644 645 cmd_data.sb_id_and_flags = 646 ((index << IGU_REGULAR_SB_INDEX_SHIFT) | 647 (segment << IGU_REGULAR_SEGMENT_ACCESS_SHIFT) | 648 (update << IGU_REGULAR_BUPDATE_SHIFT) | 649 (op << IGU_REGULAR_ENABLE_INT_SHIFT)); 650 651 DP(NETIF_MSG_INTR, "write 0x%08x to IGU addr 0x%x\n", 652 cmd_data.sb_id_and_flags, igu_addr); 653 REG_WR(bp, igu_addr, cmd_data.sb_id_and_flags); 654 655 /* Make sure that ACK is written */ 656 mmiowb(); 657 barrier(); 658 } 659 660 static inline void bnx2x_hc_ack_sb(struct bnx2x *bp, u8 sb_id, 661 u8 storm, u16 index, u8 op, u8 update) 662 { 663 u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + 664 COMMAND_REG_INT_ACK); 665 struct igu_ack_register igu_ack; 666 667 igu_ack.status_block_index = index; 668 igu_ack.sb_id_and_flags = 669 ((sb_id << IGU_ACK_REGISTER_STATUS_BLOCK_ID_SHIFT) | 670 (storm << IGU_ACK_REGISTER_STORM_ID_SHIFT) | 671 (update << IGU_ACK_REGISTER_UPDATE_INDEX_SHIFT) | 672 (op << IGU_ACK_REGISTER_INTERRUPT_MODE_SHIFT)); 673 674 REG_WR(bp, hc_addr, (*(u32 *)&igu_ack)); 675 676 /* Make sure that ACK is written */ 677 mmiowb(); 678 barrier(); 679 } 680 681 static inline void bnx2x_ack_sb(struct bnx2x *bp, u8 igu_sb_id, u8 storm, 682 u16 index, u8 op, u8 update) 683 { 684 if (bp->common.int_block == INT_BLOCK_HC) 685 bnx2x_hc_ack_sb(bp, igu_sb_id, storm, index, op, update); 686 else { 687 u8 segment; 688 689 if (CHIP_INT_MODE_IS_BC(bp)) 690 segment = storm; 691 else if (igu_sb_id != bp->igu_dsb_id) 692 segment = IGU_SEG_ACCESS_DEF; 693 else if (storm == ATTENTION_ID) 694 segment = IGU_SEG_ACCESS_ATTN; 695 else 696 segment = IGU_SEG_ACCESS_DEF; 697 bnx2x_igu_ack_sb(bp, igu_sb_id, segment, index, op, update); 698 } 699 } 700 701 static inline u16 bnx2x_hc_ack_int(struct bnx2x *bp) 702 { 703 u32 hc_addr = (HC_REG_COMMAND_REG + BP_PORT(bp)*32 + 704 COMMAND_REG_SIMD_MASK); 705 u32 result = REG_RD(bp, hc_addr); 706 707 barrier(); 708 return result; 709 } 710 711 static inline u16 bnx2x_igu_ack_int(struct bnx2x *bp) 712 { 713 u32 igu_addr = (BAR_IGU_INTMEM + IGU_REG_SISR_MDPC_WMASK_LSB_UPPER*8); 714 u32 result = REG_RD(bp, igu_addr); 715 716 DP(NETIF_MSG_INTR, "read 0x%08x from IGU addr 0x%x\n", 717 result, igu_addr); 718 719 barrier(); 720 return result; 721 } 722 723 static inline u16 bnx2x_ack_int(struct bnx2x *bp) 724 { 725 barrier(); 726 if (bp->common.int_block == INT_BLOCK_HC) 727 return bnx2x_hc_ack_int(bp); 728 else 729 return bnx2x_igu_ack_int(bp); 730 } 731 732 static inline int bnx2x_has_tx_work_unload(struct bnx2x_fp_txdata *txdata) 733 { 734 /* Tell compiler that consumer and producer can change */ 735 barrier(); 736 return txdata->tx_pkt_prod != txdata->tx_pkt_cons; 737 } 738 739 static inline u16 bnx2x_tx_avail(struct bnx2x *bp, 740 struct bnx2x_fp_txdata *txdata) 741 { 742 s16 used; 743 u16 prod; 744 u16 cons; 745 746 prod = txdata->tx_bd_prod; 747 cons = txdata->tx_bd_cons; 748 749 used = SUB_S16(prod, cons); 750 751 #ifdef BNX2X_STOP_ON_ERROR 752 WARN_ON(used < 0); 753 WARN_ON(used > txdata->tx_ring_size); 754 WARN_ON((txdata->tx_ring_size - used) > MAX_TX_AVAIL); 755 #endif 756 757 return (s16)(txdata->tx_ring_size) - used; 758 } 759 760 static inline int bnx2x_tx_queue_has_work(struct bnx2x_fp_txdata *txdata) 761 { 762 u16 hw_cons; 763 764 /* Tell compiler that status block fields can change */ 765 barrier(); 766 hw_cons = le16_to_cpu(*txdata->tx_cons_sb); 767 return hw_cons != txdata->tx_pkt_cons; 768 } 769 770 static inline bool bnx2x_has_tx_work(struct bnx2x_fastpath *fp) 771 { 772 u8 cos; 773 for_each_cos_in_tx_queue(fp, cos) 774 if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos])) 775 return true; 776 return false; 777 } 778 779 #define BNX2X_IS_CQE_COMPLETED(cqe_fp) (cqe_fp->marker == 0x0) 780 #define BNX2X_SEED_CQE(cqe_fp) (cqe_fp->marker = 0xFFFFFFFF) 781 static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp) 782 { 783 u16 cons; 784 union eth_rx_cqe *cqe; 785 struct eth_fast_path_rx_cqe *cqe_fp; 786 787 cons = RCQ_BD(fp->rx_comp_cons); 788 cqe = &fp->rx_comp_ring[cons]; 789 cqe_fp = &cqe->fast_path_cqe; 790 return BNX2X_IS_CQE_COMPLETED(cqe_fp); 791 } 792 793 /** 794 * bnx2x_tx_disable - disables tx from stack point of view 795 * 796 * @bp: driver handle 797 */ 798 static inline void bnx2x_tx_disable(struct bnx2x *bp) 799 { 800 netif_tx_disable(bp->dev); 801 netif_carrier_off(bp->dev); 802 } 803 804 static inline void bnx2x_free_rx_sge(struct bnx2x *bp, 805 struct bnx2x_fastpath *fp, u16 index) 806 { 807 struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; 808 struct page *page = sw_buf->page; 809 struct eth_rx_sge *sge = &fp->rx_sge_ring[index]; 810 811 /* Skip "next page" elements */ 812 if (!page) 813 return; 814 815 /* Since many fragments can share the same page, make sure to 816 * only unmap and free the page once. 817 */ 818 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(sw_buf, mapping), 819 SGE_PAGE_SIZE, DMA_FROM_DEVICE); 820 821 put_page(page); 822 823 sw_buf->page = NULL; 824 sge->addr_hi = 0; 825 sge->addr_lo = 0; 826 } 827 828 static inline void bnx2x_del_all_napi_cnic(struct bnx2x *bp) 829 { 830 int i; 831 832 for_each_rx_queue_cnic(bp, i) { 833 napi_hash_del(&bnx2x_fp(bp, i, napi)); 834 netif_napi_del(&bnx2x_fp(bp, i, napi)); 835 } 836 } 837 838 static inline void bnx2x_del_all_napi(struct bnx2x *bp) 839 { 840 int i; 841 842 for_each_eth_queue(bp, i) { 843 napi_hash_del(&bnx2x_fp(bp, i, napi)); 844 netif_napi_del(&bnx2x_fp(bp, i, napi)); 845 } 846 } 847 848 int bnx2x_set_int_mode(struct bnx2x *bp); 849 850 static inline void bnx2x_disable_msi(struct bnx2x *bp) 851 { 852 if (bp->flags & USING_MSIX_FLAG) { 853 pci_disable_msix(bp->pdev); 854 bp->flags &= ~(USING_MSIX_FLAG | USING_SINGLE_MSIX_FLAG); 855 } else if (bp->flags & USING_MSI_FLAG) { 856 pci_disable_msi(bp->pdev); 857 bp->flags &= ~USING_MSI_FLAG; 858 } 859 } 860 861 static inline void bnx2x_clear_sge_mask_next_elems(struct bnx2x_fastpath *fp) 862 { 863 int i, j; 864 865 for (i = 1; i <= NUM_RX_SGE_PAGES; i++) { 866 int idx = RX_SGE_CNT * i - 1; 867 868 for (j = 0; j < 2; j++) { 869 BIT_VEC64_CLEAR_BIT(fp->sge_mask, idx); 870 idx--; 871 } 872 } 873 } 874 875 static inline void bnx2x_init_sge_ring_bit_mask(struct bnx2x_fastpath *fp) 876 { 877 /* Set the mask to all 1-s: it's faster to compare to 0 than to 0xf-s */ 878 memset(fp->sge_mask, 0xff, sizeof(fp->sge_mask)); 879 880 /* Clear the two last indices in the page to 1: 881 these are the indices that correspond to the "next" element, 882 hence will never be indicated and should be removed from 883 the calculations. */ 884 bnx2x_clear_sge_mask_next_elems(fp); 885 } 886 887 /* note that we are not allocating a new buffer, 888 * we are just moving one from cons to prod 889 * we are not creating a new mapping, 890 * so there is no need to check for dma_mapping_error(). 891 */ 892 static inline void bnx2x_reuse_rx_data(struct bnx2x_fastpath *fp, 893 u16 cons, u16 prod) 894 { 895 struct sw_rx_bd *cons_rx_buf = &fp->rx_buf_ring[cons]; 896 struct sw_rx_bd *prod_rx_buf = &fp->rx_buf_ring[prod]; 897 struct eth_rx_bd *cons_bd = &fp->rx_desc_ring[cons]; 898 struct eth_rx_bd *prod_bd = &fp->rx_desc_ring[prod]; 899 900 dma_unmap_addr_set(prod_rx_buf, mapping, 901 dma_unmap_addr(cons_rx_buf, mapping)); 902 prod_rx_buf->data = cons_rx_buf->data; 903 *prod_bd = *cons_bd; 904 } 905 906 /************************* Init ******************************************/ 907 908 /* returns func by VN for current port */ 909 static inline int func_by_vn(struct bnx2x *bp, int vn) 910 { 911 return 2 * vn + BP_PORT(bp); 912 } 913 914 static inline int bnx2x_config_rss_eth(struct bnx2x *bp, bool config_hash) 915 { 916 return bnx2x_rss(bp, &bp->rss_conf_obj, config_hash, true); 917 } 918 919 /** 920 * bnx2x_func_start - init function 921 * 922 * @bp: driver handle 923 * 924 * Must be called before sending CLIENT_SETUP for the first client. 925 */ 926 static inline int bnx2x_func_start(struct bnx2x *bp) 927 { 928 struct bnx2x_func_state_params func_params = {NULL}; 929 struct bnx2x_func_start_params *start_params = 930 &func_params.params.start; 931 u16 port; 932 933 /* Prepare parameters for function state transitions */ 934 __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags); 935 936 func_params.f_obj = &bp->func_obj; 937 func_params.cmd = BNX2X_F_CMD_START; 938 939 /* Function parameters */ 940 start_params->mf_mode = bp->mf_mode; 941 start_params->sd_vlan_tag = bp->mf_ov; 942 943 /* Configure Ethertype for BD mode */ 944 if (IS_MF_BD(bp)) { 945 DP(NETIF_MSG_IFUP, "Configuring ethertype 0x88a8 for BD\n"); 946 start_params->sd_vlan_eth_type = ETH_P_8021AD; 947 REG_WR(bp, PRS_REG_VLAN_TYPE_0, ETH_P_8021AD); 948 REG_WR(bp, PBF_REG_VLAN_TYPE_0, ETH_P_8021AD); 949 REG_WR(bp, NIG_REG_LLH_E1HOV_TYPE_1, ETH_P_8021AD); 950 951 bnx2x_get_c2s_mapping(bp, start_params->c2s_pri, 952 &start_params->c2s_pri_default); 953 start_params->c2s_pri_valid = 1; 954 955 DP(NETIF_MSG_IFUP, 956 "Inner-to-Outer priority: %02x %02x %02x %02x %02x %02x %02x %02x [Default %02x]\n", 957 start_params->c2s_pri[0], start_params->c2s_pri[1], 958 start_params->c2s_pri[2], start_params->c2s_pri[3], 959 start_params->c2s_pri[4], start_params->c2s_pri[5], 960 start_params->c2s_pri[6], start_params->c2s_pri[7], 961 start_params->c2s_pri_default); 962 } 963 964 if (CHIP_IS_E2(bp) || CHIP_IS_E3(bp)) 965 start_params->network_cos_mode = STATIC_COS; 966 else /* CHIP_IS_E1X */ 967 start_params->network_cos_mode = FW_WRR; 968 if (bp->udp_tunnel_ports[BNX2X_UDP_PORT_VXLAN].count) { 969 port = bp->udp_tunnel_ports[BNX2X_UDP_PORT_VXLAN].dst_port; 970 start_params->vxlan_dst_port = port; 971 } 972 if (bp->udp_tunnel_ports[BNX2X_UDP_PORT_GENEVE].count) { 973 port = bp->udp_tunnel_ports[BNX2X_UDP_PORT_GENEVE].dst_port; 974 start_params->geneve_dst_port = port; 975 } 976 977 start_params->inner_rss = 1; 978 979 if (IS_MF_UFP(bp) && BNX2X_IS_MF_SD_PROTOCOL_FCOE(bp)) { 980 start_params->class_fail_ethtype = ETH_P_FIP; 981 start_params->class_fail = 1; 982 start_params->no_added_tags = 1; 983 } 984 985 return bnx2x_func_state_change(bp, &func_params); 986 } 987 988 /** 989 * bnx2x_set_fw_mac_addr - fill in a MAC address in FW format 990 * 991 * @fw_hi: pointer to upper part 992 * @fw_mid: pointer to middle part 993 * @fw_lo: pointer to lower part 994 * @mac: pointer to MAC address 995 */ 996 static inline void bnx2x_set_fw_mac_addr(__le16 *fw_hi, __le16 *fw_mid, 997 __le16 *fw_lo, u8 *mac) 998 { 999 ((u8 *)fw_hi)[0] = mac[1]; 1000 ((u8 *)fw_hi)[1] = mac[0]; 1001 ((u8 *)fw_mid)[0] = mac[3]; 1002 ((u8 *)fw_mid)[1] = mac[2]; 1003 ((u8 *)fw_lo)[0] = mac[5]; 1004 ((u8 *)fw_lo)[1] = mac[4]; 1005 } 1006 1007 static inline void bnx2x_free_rx_mem_pool(struct bnx2x *bp, 1008 struct bnx2x_alloc_pool *pool) 1009 { 1010 if (!pool->page) 1011 return; 1012 1013 put_page(pool->page); 1014 1015 pool->page = NULL; 1016 } 1017 1018 static inline void bnx2x_free_rx_sge_range(struct bnx2x *bp, 1019 struct bnx2x_fastpath *fp, int last) 1020 { 1021 int i; 1022 1023 if (fp->mode == TPA_MODE_DISABLED) 1024 return; 1025 1026 for (i = 0; i < last; i++) 1027 bnx2x_free_rx_sge(bp, fp, i); 1028 1029 bnx2x_free_rx_mem_pool(bp, &fp->page_pool); 1030 } 1031 1032 static inline void bnx2x_set_next_page_rx_bd(struct bnx2x_fastpath *fp) 1033 { 1034 int i; 1035 1036 for (i = 1; i <= NUM_RX_RINGS; i++) { 1037 struct eth_rx_bd *rx_bd; 1038 1039 rx_bd = &fp->rx_desc_ring[RX_DESC_CNT * i - 2]; 1040 rx_bd->addr_hi = 1041 cpu_to_le32(U64_HI(fp->rx_desc_mapping + 1042 BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); 1043 rx_bd->addr_lo = 1044 cpu_to_le32(U64_LO(fp->rx_desc_mapping + 1045 BCM_PAGE_SIZE*(i % NUM_RX_RINGS))); 1046 } 1047 } 1048 1049 /* Statistics ID are global per chip/path, while Client IDs for E1x are per 1050 * port. 1051 */ 1052 static inline u8 bnx2x_stats_id(struct bnx2x_fastpath *fp) 1053 { 1054 struct bnx2x *bp = fp->bp; 1055 if (!CHIP_IS_E1x(bp)) { 1056 /* there are special statistics counters for FCoE 136..140 */ 1057 if (IS_FCOE_FP(fp)) 1058 return bp->cnic_base_cl_id + (bp->pf_num >> 1); 1059 return fp->cl_id; 1060 } 1061 return fp->cl_id + BP_PORT(bp) * FP_SB_MAX_E1x; 1062 } 1063 1064 static inline void bnx2x_init_vlan_mac_fp_objs(struct bnx2x_fastpath *fp, 1065 bnx2x_obj_type obj_type) 1066 { 1067 struct bnx2x *bp = fp->bp; 1068 1069 /* Configure classification DBs */ 1070 bnx2x_init_mac_obj(bp, &bnx2x_sp_obj(bp, fp).mac_obj, fp->cl_id, 1071 fp->cid, BP_FUNC(bp), bnx2x_sp(bp, mac_rdata), 1072 bnx2x_sp_mapping(bp, mac_rdata), 1073 BNX2X_FILTER_MAC_PENDING, 1074 &bp->sp_state, obj_type, 1075 &bp->macs_pool); 1076 1077 if (!CHIP_IS_E1x(bp)) 1078 bnx2x_init_vlan_obj(bp, &bnx2x_sp_obj(bp, fp).vlan_obj, 1079 fp->cl_id, fp->cid, BP_FUNC(bp), 1080 bnx2x_sp(bp, vlan_rdata), 1081 bnx2x_sp_mapping(bp, vlan_rdata), 1082 BNX2X_FILTER_VLAN_PENDING, 1083 &bp->sp_state, obj_type, 1084 &bp->vlans_pool); 1085 } 1086 1087 /** 1088 * bnx2x_get_path_func_num - get number of active functions 1089 * 1090 * @bp: driver handle 1091 * 1092 * Calculates the number of active (not hidden) functions on the 1093 * current path. 1094 */ 1095 static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp) 1096 { 1097 u8 func_num = 0, i; 1098 1099 /* 57710 has only one function per-port */ 1100 if (CHIP_IS_E1(bp)) 1101 return 1; 1102 1103 /* Calculate a number of functions enabled on the current 1104 * PATH/PORT. 1105 */ 1106 if (CHIP_REV_IS_SLOW(bp)) { 1107 if (IS_MF(bp)) 1108 func_num = 4; 1109 else 1110 func_num = 2; 1111 } else { 1112 for (i = 0; i < E1H_FUNC_MAX / 2; i++) { 1113 u32 func_config = 1114 MF_CFG_RD(bp, 1115 func_mf_config[BP_PORT(bp) + 2 * i]. 1116 config); 1117 func_num += 1118 ((func_config & FUNC_MF_CFG_FUNC_HIDE) ? 0 : 1); 1119 } 1120 } 1121 1122 WARN_ON(!func_num); 1123 1124 return func_num; 1125 } 1126 1127 static inline void bnx2x_init_bp_objs(struct bnx2x *bp) 1128 { 1129 /* RX_MODE controlling object */ 1130 bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj); 1131 1132 /* multicast configuration controlling object */ 1133 bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid, 1134 BP_FUNC(bp), BP_FUNC(bp), 1135 bnx2x_sp(bp, mcast_rdata), 1136 bnx2x_sp_mapping(bp, mcast_rdata), 1137 BNX2X_FILTER_MCAST_PENDING, &bp->sp_state, 1138 BNX2X_OBJ_TYPE_RX); 1139 1140 /* Setup CAM credit pools */ 1141 bnx2x_init_mac_credit_pool(bp, &bp->macs_pool, BP_FUNC(bp), 1142 bnx2x_get_path_func_num(bp)); 1143 1144 bnx2x_init_vlan_credit_pool(bp, &bp->vlans_pool, BP_FUNC(bp), 1145 bnx2x_get_path_func_num(bp)); 1146 1147 /* RSS configuration object */ 1148 bnx2x_init_rss_config_obj(bp, &bp->rss_conf_obj, bp->fp->cl_id, 1149 bp->fp->cid, BP_FUNC(bp), BP_FUNC(bp), 1150 bnx2x_sp(bp, rss_rdata), 1151 bnx2x_sp_mapping(bp, rss_rdata), 1152 BNX2X_FILTER_RSS_CONF_PENDING, &bp->sp_state, 1153 BNX2X_OBJ_TYPE_RX); 1154 1155 bp->vlan_credit = PF_VLAN_CREDIT_E2(bp, bnx2x_get_path_func_num(bp)); 1156 } 1157 1158 static inline u8 bnx2x_fp_qzone_id(struct bnx2x_fastpath *fp) 1159 { 1160 if (CHIP_IS_E1x(fp->bp)) 1161 return fp->cl_id + BP_PORT(fp->bp) * ETH_MAX_RX_CLIENTS_E1H; 1162 else 1163 return fp->cl_id; 1164 } 1165 1166 static inline void bnx2x_init_txdata(struct bnx2x *bp, 1167 struct bnx2x_fp_txdata *txdata, u32 cid, 1168 int txq_index, __le16 *tx_cons_sb, 1169 struct bnx2x_fastpath *fp) 1170 { 1171 txdata->cid = cid; 1172 txdata->txq_index = txq_index; 1173 txdata->tx_cons_sb = tx_cons_sb; 1174 txdata->parent_fp = fp; 1175 txdata->tx_ring_size = IS_FCOE_FP(fp) ? MAX_TX_AVAIL : bp->tx_ring_size; 1176 1177 DP(NETIF_MSG_IFUP, "created tx data cid %d, txq %d\n", 1178 txdata->cid, txdata->txq_index); 1179 } 1180 1181 static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx) 1182 { 1183 return bp->cnic_base_cl_id + cl_idx + 1184 (bp->pf_num >> 1) * BNX2X_MAX_CNIC_ETH_CL_ID_IDX; 1185 } 1186 1187 static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp) 1188 { 1189 /* the 'first' id is allocated for the cnic */ 1190 return bp->base_fw_ndsb; 1191 } 1192 1193 static inline u8 bnx2x_cnic_igu_sb_id(struct bnx2x *bp) 1194 { 1195 return bp->igu_base_sb; 1196 } 1197 1198 static inline int bnx2x_clean_tx_queue(struct bnx2x *bp, 1199 struct bnx2x_fp_txdata *txdata) 1200 { 1201 int cnt = 1000; 1202 1203 while (bnx2x_has_tx_work_unload(txdata)) { 1204 if (!cnt) { 1205 BNX2X_ERR("timeout waiting for queue[%d]: txdata->tx_pkt_prod(%d) != txdata->tx_pkt_cons(%d)\n", 1206 txdata->txq_index, txdata->tx_pkt_prod, 1207 txdata->tx_pkt_cons); 1208 #ifdef BNX2X_STOP_ON_ERROR 1209 bnx2x_panic(); 1210 return -EBUSY; 1211 #else 1212 break; 1213 #endif 1214 } 1215 cnt--; 1216 usleep_range(1000, 2000); 1217 } 1218 1219 return 0; 1220 } 1221 1222 int bnx2x_get_link_cfg_idx(struct bnx2x *bp); 1223 1224 static inline void __storm_memset_struct(struct bnx2x *bp, 1225 u32 addr, size_t size, u32 *data) 1226 { 1227 int i; 1228 for (i = 0; i < size/4; i++) 1229 REG_WR(bp, addr + (i * 4), data[i]); 1230 } 1231 1232 /** 1233 * bnx2x_wait_sp_comp - wait for the outstanding SP commands. 1234 * 1235 * @bp: driver handle 1236 * @mask: bits that need to be cleared 1237 */ 1238 static inline bool bnx2x_wait_sp_comp(struct bnx2x *bp, unsigned long mask) 1239 { 1240 int tout = 5000; /* Wait for 5 secs tops */ 1241 1242 while (tout--) { 1243 smp_mb(); 1244 netif_addr_lock_bh(bp->dev); 1245 if (!(bp->sp_state & mask)) { 1246 netif_addr_unlock_bh(bp->dev); 1247 return true; 1248 } 1249 netif_addr_unlock_bh(bp->dev); 1250 1251 usleep_range(1000, 2000); 1252 } 1253 1254 smp_mb(); 1255 1256 netif_addr_lock_bh(bp->dev); 1257 if (bp->sp_state & mask) { 1258 BNX2X_ERR("Filtering completion timed out. sp_state 0x%lx, mask 0x%lx\n", 1259 bp->sp_state, mask); 1260 netif_addr_unlock_bh(bp->dev); 1261 return false; 1262 } 1263 netif_addr_unlock_bh(bp->dev); 1264 1265 return true; 1266 } 1267 1268 /** 1269 * bnx2x_set_ctx_validation - set CDU context validation values 1270 * 1271 * @bp: driver handle 1272 * @cxt: context of the connection on the host memory 1273 * @cid: SW CID of the connection to be configured 1274 */ 1275 void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt, 1276 u32 cid); 1277 1278 void bnx2x_update_coalesce_sb_index(struct bnx2x *bp, u8 fw_sb_id, 1279 u8 sb_index, u8 disable, u16 usec); 1280 void bnx2x_acquire_phy_lock(struct bnx2x *bp); 1281 void bnx2x_release_phy_lock(struct bnx2x *bp); 1282 1283 /** 1284 * bnx2x_extract_max_cfg - extract MAX BW part from MF configuration. 1285 * 1286 * @bp: driver handle 1287 * @mf_cfg: MF configuration 1288 * 1289 */ 1290 static inline u16 bnx2x_extract_max_cfg(struct bnx2x *bp, u32 mf_cfg) 1291 { 1292 u16 max_cfg = (mf_cfg & FUNC_MF_CFG_MAX_BW_MASK) >> 1293 FUNC_MF_CFG_MAX_BW_SHIFT; 1294 if (!max_cfg) { 1295 DP(NETIF_MSG_IFUP | BNX2X_MSG_ETHTOOL, 1296 "Max BW configured to 0 - using 100 instead\n"); 1297 max_cfg = 100; 1298 } 1299 return max_cfg; 1300 } 1301 1302 /* checks if HW supports GRO for given MTU */ 1303 static inline bool bnx2x_mtu_allows_gro(int mtu) 1304 { 1305 /* gro frags per page */ 1306 int fpp = SGE_PAGE_SIZE / (mtu - ETH_MAX_TPA_HEADER_SIZE); 1307 1308 /* 1309 * 1. Number of frags should not grow above MAX_SKB_FRAGS 1310 * 2. Frag must fit the page 1311 */ 1312 return mtu <= SGE_PAGE_SIZE && (U_ETH_SGL_SIZE * fpp) <= MAX_SKB_FRAGS; 1313 } 1314 1315 /** 1316 * bnx2x_get_iscsi_info - update iSCSI params according to licensing info. 1317 * 1318 * @bp: driver handle 1319 * 1320 */ 1321 void bnx2x_get_iscsi_info(struct bnx2x *bp); 1322 1323 /** 1324 * bnx2x_link_sync_notify - send notification to other functions. 1325 * 1326 * @bp: driver handle 1327 * 1328 */ 1329 static inline void bnx2x_link_sync_notify(struct bnx2x *bp) 1330 { 1331 int func; 1332 int vn; 1333 1334 /* Set the attention towards other drivers on the same port */ 1335 for (vn = VN_0; vn < BP_MAX_VN_NUM(bp); vn++) { 1336 if (vn == BP_VN(bp)) 1337 continue; 1338 1339 func = func_by_vn(bp, vn); 1340 REG_WR(bp, MISC_REG_AEU_GENERAL_ATTN_0 + 1341 (LINK_SYNC_ATTENTION_BIT_FUNC_0 + func)*4, 1); 1342 } 1343 } 1344 1345 /** 1346 * bnx2x_update_drv_flags - update flags in shmem 1347 * 1348 * @bp: driver handle 1349 * @flags: flags to update 1350 * @set: set or clear 1351 * 1352 */ 1353 static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set) 1354 { 1355 if (SHMEM2_HAS(bp, drv_flags)) { 1356 u32 drv_flags; 1357 bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS); 1358 drv_flags = SHMEM2_RD(bp, drv_flags); 1359 1360 if (set) 1361 SET_FLAGS(drv_flags, flags); 1362 else 1363 RESET_FLAGS(drv_flags, flags); 1364 1365 SHMEM2_WR(bp, drv_flags, drv_flags); 1366 DP(NETIF_MSG_IFUP, "drv_flags 0x%08x\n", drv_flags); 1367 bnx2x_release_hw_lock(bp, HW_LOCK_RESOURCE_DRV_FLAGS); 1368 } 1369 } 1370 1371 1372 1373 /** 1374 * bnx2x_fill_fw_str - Fill buffer with FW version string 1375 * 1376 * @bp: driver handle 1377 * @buf: character buffer to fill with the fw name 1378 * @buf_len: length of the above buffer 1379 * 1380 */ 1381 void bnx2x_fill_fw_str(struct bnx2x *bp, char *buf, size_t buf_len); 1382 1383 int bnx2x_drain_tx_queues(struct bnx2x *bp); 1384 void bnx2x_squeeze_objects(struct bnx2x *bp); 1385 1386 void bnx2x_schedule_sp_rtnl(struct bnx2x*, enum sp_rtnl_flag, 1387 u32 verbose); 1388 1389 /** 1390 * bnx2x_set_os_driver_state - write driver state for management FW usage 1391 * 1392 * @bp: driver handle 1393 * @state: OS_DRIVER_STATE_* value reflecting current driver state 1394 */ 1395 void bnx2x_set_os_driver_state(struct bnx2x *bp, u32 state); 1396 1397 /** 1398 * bnx2x_nvram_read - reads data from nvram [might sleep] 1399 * 1400 * @bp: driver handle 1401 * @offset: byte offset in nvram 1402 * @ret_buf: pointer to buffer where data is to be stored 1403 * @buf_size: Length of 'ret_buf' in bytes 1404 */ 1405 int bnx2x_nvram_read(struct bnx2x *bp, u32 offset, u8 *ret_buf, 1406 int buf_size); 1407 1408 #endif /* BNX2X_CMN_H */ 1409