1/********************************************************************** 2 * Author: Cavium, Inc. 3 * 4 * Contact: support@cavium.com 5 * Please include "LiquidIO" in the subject. 6 * 7 * Copyright (c) 2003-2016 Cavium, Inc. 8 * 9 * This file is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License, Version 2, as 11 * published by the Free Software Foundation. 12 * 13 * This file is distributed in the hope that it will be useful, but 14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 16 * NONINFRINGEMENT. See the GNU General Public License for more details. 17 ***********************************************************************/ 18#include <linux/pci.h> 19#include <linux/netdevice.h> 20#include <linux/vmalloc.h> 21#include "liquidio_common.h" 22#include "octeon_droq.h" 23#include "octeon_iq.h" 24#include "response_manager.h" 25#include "octeon_device.h" 26#include "octeon_main.h" 27#include "octeon_network.h" 28#include "cn66xx_regs.h" 29#include "cn66xx_device.h" 30#include "cn23xx_pf_device.h" 31#include "cn23xx_vf_device.h" 32 33/** Default configuration 34 * for CN66XX OCTEON Models. 35 */ 36static struct octeon_config default_cn66xx_conf = { 37 .card_type = LIO_210SV, 38 .card_name = LIO_210SV_NAME, 39 40 /** IQ attributes */ 41 .iq = { 42 .max_iqs = CN6XXX_CFG_IO_QUEUES, 43 .pending_list_size = 44 (CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES), 45 .instr_type = OCTEON_64BYTE_INSTR, 46 .db_min = CN6XXX_DB_MIN, 47 .db_timeout = CN6XXX_DB_TIMEOUT, 48 } 49 , 50 51 /** OQ attributes */ 52 .oq = { 53 .max_oqs = CN6XXX_CFG_IO_QUEUES, 54 .refill_threshold = CN6XXX_OQ_REFIL_THRESHOLD, 55 .oq_intr_pkt = CN6XXX_OQ_INTR_PKT, 56 .oq_intr_time = CN6XXX_OQ_INTR_TIME, 57 .pkts_per_intr = CN6XXX_OQ_PKTSPER_INTR, 58 } 59 , 60 61 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_66XX, 62 .num_def_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 63 .num_def_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 64 .def_rx_buf_size = CN6XXX_OQ_BUF_SIZE, 65 66 /* For ethernet interface 0: Port cfg Attributes */ 67 .nic_if_cfg[0] = { 68 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 69 .max_txqs = MAX_TXQS_PER_INTF, 70 71 /* Actual configured value. Range could be: 1...max_txqs */ 72 .num_txqs = DEF_TXQS_PER_INTF, 73 74 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 75 .max_rxqs = MAX_RXQS_PER_INTF, 76 77 /* Actual configured value. Range could be: 1...max_rxqs */ 78 .num_rxqs = DEF_RXQS_PER_INTF, 79 80 /* Num of desc for rx rings */ 81 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 82 83 /* Num of desc for tx rings */ 84 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 85 86 /* SKB size, We need not change buf size even for Jumbo frames. 87 * Octeon can send jumbo frames in 4 consecutive descriptors, 88 */ 89 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 90 91 .base_queue = BASE_QUEUE_NOT_REQUESTED, 92 93 .gmx_port_id = 0, 94 }, 95 96 .nic_if_cfg[1] = { 97 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 98 .max_txqs = MAX_TXQS_PER_INTF, 99 100 /* Actual configured value. Range could be: 1...max_txqs */ 101 .num_txqs = DEF_TXQS_PER_INTF, 102 103 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 104 .max_rxqs = MAX_RXQS_PER_INTF, 105 106 /* Actual configured value. Range could be: 1...max_rxqs */ 107 .num_rxqs = DEF_RXQS_PER_INTF, 108 109 /* Num of desc for rx rings */ 110 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 111 112 /* Num of desc for tx rings */ 113 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 114 115 /* SKB size, We need not change buf size even for Jumbo frames. 116 * Octeon can send jumbo frames in 4 consecutive descriptors, 117 */ 118 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 119 120 .base_queue = BASE_QUEUE_NOT_REQUESTED, 121 122 .gmx_port_id = 1, 123 }, 124 125 /** Miscellaneous attributes */ 126 .misc = { 127 /* Host driver link query interval */ 128 .oct_link_query_interval = 100, 129 130 /* Octeon link query interval */ 131 .host_link_query_interval = 500, 132 133 .enable_sli_oq_bp = 0, 134 135 /* Control queue group */ 136 .ctrlq_grp = 1, 137 } 138 , 139}; 140 141/** Default configuration 142 * for CN68XX OCTEON Model. 143 */ 144 145static struct octeon_config default_cn68xx_conf = { 146 .card_type = LIO_410NV, 147 .card_name = LIO_410NV_NAME, 148 149 /** IQ attributes */ 150 .iq = { 151 .max_iqs = CN6XXX_CFG_IO_QUEUES, 152 .pending_list_size = 153 (CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES), 154 .instr_type = OCTEON_64BYTE_INSTR, 155 .db_min = CN6XXX_DB_MIN, 156 .db_timeout = CN6XXX_DB_TIMEOUT, 157 } 158 , 159 160 /** OQ attributes */ 161 .oq = { 162 .max_oqs = CN6XXX_CFG_IO_QUEUES, 163 .refill_threshold = CN6XXX_OQ_REFIL_THRESHOLD, 164 .oq_intr_pkt = CN6XXX_OQ_INTR_PKT, 165 .oq_intr_time = CN6XXX_OQ_INTR_TIME, 166 .pkts_per_intr = CN6XXX_OQ_PKTSPER_INTR, 167 } 168 , 169 170 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_68XX, 171 .num_def_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 172 .num_def_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 173 .def_rx_buf_size = CN6XXX_OQ_BUF_SIZE, 174 175 .nic_if_cfg[0] = { 176 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 177 .max_txqs = MAX_TXQS_PER_INTF, 178 179 /* Actual configured value. Range could be: 1...max_txqs */ 180 .num_txqs = DEF_TXQS_PER_INTF, 181 182 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 183 .max_rxqs = MAX_RXQS_PER_INTF, 184 185 /* Actual configured value. Range could be: 1...max_rxqs */ 186 .num_rxqs = DEF_RXQS_PER_INTF, 187 188 /* Num of desc for rx rings */ 189 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 190 191 /* Num of desc for tx rings */ 192 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 193 194 /* SKB size, We need not change buf size even for Jumbo frames. 195 * Octeon can send jumbo frames in 4 consecutive descriptors, 196 */ 197 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 198 199 .base_queue = BASE_QUEUE_NOT_REQUESTED, 200 201 .gmx_port_id = 0, 202 }, 203 204 .nic_if_cfg[1] = { 205 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 206 .max_txqs = MAX_TXQS_PER_INTF, 207 208 /* Actual configured value. Range could be: 1...max_txqs */ 209 .num_txqs = DEF_TXQS_PER_INTF, 210 211 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 212 .max_rxqs = MAX_RXQS_PER_INTF, 213 214 /* Actual configured value. Range could be: 1...max_rxqs */ 215 .num_rxqs = DEF_RXQS_PER_INTF, 216 217 /* Num of desc for rx rings */ 218 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 219 220 /* Num of desc for tx rings */ 221 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 222 223 /* SKB size, We need not change buf size even for Jumbo frames. 224 * Octeon can send jumbo frames in 4 consecutive descriptors, 225 */ 226 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 227 228 .base_queue = BASE_QUEUE_NOT_REQUESTED, 229 230 .gmx_port_id = 1, 231 }, 232 233 .nic_if_cfg[2] = { 234 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 235 .max_txqs = MAX_TXQS_PER_INTF, 236 237 /* Actual configured value. Range could be: 1...max_txqs */ 238 .num_txqs = DEF_TXQS_PER_INTF, 239 240 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 241 .max_rxqs = MAX_RXQS_PER_INTF, 242 243 /* Actual configured value. Range could be: 1...max_rxqs */ 244 .num_rxqs = DEF_RXQS_PER_INTF, 245 246 /* Num of desc for rx rings */ 247 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 248 249 /* Num of desc for tx rings */ 250 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 251 252 /* SKB size, We need not change buf size even for Jumbo frames. 253 * Octeon can send jumbo frames in 4 consecutive descriptors, 254 */ 255 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 256 257 .base_queue = BASE_QUEUE_NOT_REQUESTED, 258 259 .gmx_port_id = 2, 260 }, 261 262 .nic_if_cfg[3] = { 263 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 264 .max_txqs = MAX_TXQS_PER_INTF, 265 266 /* Actual configured value. Range could be: 1...max_txqs */ 267 .num_txqs = DEF_TXQS_PER_INTF, 268 269 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 270 .max_rxqs = MAX_RXQS_PER_INTF, 271 272 /* Actual configured value. Range could be: 1...max_rxqs */ 273 .num_rxqs = DEF_RXQS_PER_INTF, 274 275 /* Num of desc for rx rings */ 276 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 277 278 /* Num of desc for tx rings */ 279 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 280 281 /* SKB size, We need not change buf size even for Jumbo frames. 282 * Octeon can send jumbo frames in 4 consecutive descriptors, 283 */ 284 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 285 286 .base_queue = BASE_QUEUE_NOT_REQUESTED, 287 288 .gmx_port_id = 3, 289 }, 290 291 /** Miscellaneous attributes */ 292 .misc = { 293 /* Host driver link query interval */ 294 .oct_link_query_interval = 100, 295 296 /* Octeon link query interval */ 297 .host_link_query_interval = 500, 298 299 .enable_sli_oq_bp = 0, 300 301 /* Control queue group */ 302 .ctrlq_grp = 1, 303 } 304 , 305}; 306 307/** Default configuration 308 * for CN68XX OCTEON Model. 309 */ 310static struct octeon_config default_cn68xx_210nv_conf = { 311 .card_type = LIO_210NV, 312 .card_name = LIO_210NV_NAME, 313 314 /** IQ attributes */ 315 316 .iq = { 317 .max_iqs = CN6XXX_CFG_IO_QUEUES, 318 .pending_list_size = 319 (CN6XXX_MAX_IQ_DESCRIPTORS * CN6XXX_CFG_IO_QUEUES), 320 .instr_type = OCTEON_64BYTE_INSTR, 321 .db_min = CN6XXX_DB_MIN, 322 .db_timeout = CN6XXX_DB_TIMEOUT, 323 } 324 , 325 326 /** OQ attributes */ 327 .oq = { 328 .max_oqs = CN6XXX_CFG_IO_QUEUES, 329 .refill_threshold = CN6XXX_OQ_REFIL_THRESHOLD, 330 .oq_intr_pkt = CN6XXX_OQ_INTR_PKT, 331 .oq_intr_time = CN6XXX_OQ_INTR_TIME, 332 .pkts_per_intr = CN6XXX_OQ_PKTSPER_INTR, 333 } 334 , 335 336 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_68XX_210NV, 337 .num_def_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 338 .num_def_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 339 .def_rx_buf_size = CN6XXX_OQ_BUF_SIZE, 340 341 .nic_if_cfg[0] = { 342 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 343 .max_txqs = MAX_TXQS_PER_INTF, 344 345 /* Actual configured value. Range could be: 1...max_txqs */ 346 .num_txqs = DEF_TXQS_PER_INTF, 347 348 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 349 .max_rxqs = MAX_RXQS_PER_INTF, 350 351 /* Actual configured value. Range could be: 1...max_rxqs */ 352 .num_rxqs = DEF_RXQS_PER_INTF, 353 354 /* Num of desc for rx rings */ 355 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 356 357 /* Num of desc for tx rings */ 358 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 359 360 /* SKB size, We need not change buf size even for Jumbo frames. 361 * Octeon can send jumbo frames in 4 consecutive descriptors, 362 */ 363 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 364 365 .base_queue = BASE_QUEUE_NOT_REQUESTED, 366 367 .gmx_port_id = 0, 368 }, 369 370 .nic_if_cfg[1] = { 371 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 372 .max_txqs = MAX_TXQS_PER_INTF, 373 374 /* Actual configured value. Range could be: 1...max_txqs */ 375 .num_txqs = DEF_TXQS_PER_INTF, 376 377 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 378 .max_rxqs = MAX_RXQS_PER_INTF, 379 380 /* Actual configured value. Range could be: 1...max_rxqs */ 381 .num_rxqs = DEF_RXQS_PER_INTF, 382 383 /* Num of desc for rx rings */ 384 .num_rx_descs = CN6XXX_MAX_OQ_DESCRIPTORS, 385 386 /* Num of desc for tx rings */ 387 .num_tx_descs = CN6XXX_MAX_IQ_DESCRIPTORS, 388 389 /* SKB size, We need not change buf size even for Jumbo frames. 390 * Octeon can send jumbo frames in 4 consecutive descriptors, 391 */ 392 .rx_buf_size = CN6XXX_OQ_BUF_SIZE, 393 394 .base_queue = BASE_QUEUE_NOT_REQUESTED, 395 396 .gmx_port_id = 1, 397 }, 398 399 /** Miscellaneous attributes */ 400 .misc = { 401 /* Host driver link query interval */ 402 .oct_link_query_interval = 100, 403 404 /* Octeon link query interval */ 405 .host_link_query_interval = 500, 406 407 .enable_sli_oq_bp = 0, 408 409 /* Control queue group */ 410 .ctrlq_grp = 1, 411 } 412 , 413}; 414 415static struct octeon_config default_cn23xx_conf = { 416 .card_type = LIO_23XX, 417 .card_name = LIO_23XX_NAME, 418 /** IQ attributes */ 419 .iq = { 420 .max_iqs = CN23XX_CFG_IO_QUEUES, 421 .pending_list_size = (CN23XX_DEFAULT_IQ_DESCRIPTORS * 422 CN23XX_CFG_IO_QUEUES), 423 .instr_type = OCTEON_64BYTE_INSTR, 424 .db_min = CN23XX_DB_MIN, 425 .db_timeout = CN23XX_DB_TIMEOUT, 426 .iq_intr_pkt = CN23XX_DEF_IQ_INTR_THRESHOLD, 427 }, 428 429 /** OQ attributes */ 430 .oq = { 431 .max_oqs = CN23XX_CFG_IO_QUEUES, 432 .pkts_per_intr = CN23XX_OQ_PKTSPER_INTR, 433 .refill_threshold = CN23XX_OQ_REFIL_THRESHOLD, 434 .oq_intr_pkt = CN23XX_OQ_INTR_PKT, 435 .oq_intr_time = CN23XX_OQ_INTR_TIME, 436 }, 437 438 .num_nic_ports = DEFAULT_NUM_NIC_PORTS_23XX, 439 .num_def_rx_descs = CN23XX_DEFAULT_OQ_DESCRIPTORS, 440 .num_def_tx_descs = CN23XX_DEFAULT_IQ_DESCRIPTORS, 441 .def_rx_buf_size = CN23XX_OQ_BUF_SIZE, 442 443 /* For ethernet interface 0: Port cfg Attributes */ 444 .nic_if_cfg[0] = { 445 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 446 .max_txqs = MAX_TXQS_PER_INTF, 447 448 /* Actual configured value. Range could be: 1...max_txqs */ 449 .num_txqs = DEF_TXQS_PER_INTF, 450 451 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 452 .max_rxqs = MAX_RXQS_PER_INTF, 453 454 /* Actual configured value. Range could be: 1...max_rxqs */ 455 .num_rxqs = DEF_RXQS_PER_INTF, 456 457 /* Num of desc for rx rings */ 458 .num_rx_descs = CN23XX_DEFAULT_OQ_DESCRIPTORS, 459 460 /* Num of desc for tx rings */ 461 .num_tx_descs = CN23XX_DEFAULT_IQ_DESCRIPTORS, 462 463 /* SKB size, We need not change buf size even for Jumbo frames. 464 * Octeon can send jumbo frames in 4 consecutive descriptors, 465 */ 466 .rx_buf_size = CN23XX_OQ_BUF_SIZE, 467 468 .base_queue = BASE_QUEUE_NOT_REQUESTED, 469 470 .gmx_port_id = 0, 471 }, 472 473 .nic_if_cfg[1] = { 474 /* Max Txqs: Half for each of the two ports :max_iq/2 */ 475 .max_txqs = MAX_TXQS_PER_INTF, 476 477 /* Actual configured value. Range could be: 1...max_txqs */ 478 .num_txqs = DEF_TXQS_PER_INTF, 479 480 /* Max Rxqs: Half for each of the two ports :max_oq/2 */ 481 .max_rxqs = MAX_RXQS_PER_INTF, 482 483 /* Actual configured value. Range could be: 1...max_rxqs */ 484 .num_rxqs = DEF_RXQS_PER_INTF, 485 486 /* Num of desc for rx rings */ 487 .num_rx_descs = CN23XX_DEFAULT_OQ_DESCRIPTORS, 488 489 /* Num of desc for tx rings */ 490 .num_tx_descs = CN23XX_DEFAULT_IQ_DESCRIPTORS, 491 492 /* SKB size, We need not change buf size even for Jumbo frames. 493 * Octeon can send jumbo frames in 4 consecutive descriptors, 494 */ 495 .rx_buf_size = CN23XX_OQ_BUF_SIZE, 496 497 .base_queue = BASE_QUEUE_NOT_REQUESTED, 498 499 .gmx_port_id = 1, 500 }, 501 502 .misc = { 503 /* Host driver link query interval */ 504 .oct_link_query_interval = 100, 505 506 /* Octeon link query interval */ 507 .host_link_query_interval = 500, 508 509 .enable_sli_oq_bp = 0, 510 511 /* Control queue group */ 512 .ctrlq_grp = 1, 513 } 514}; 515 516static struct octeon_config_ptr { 517 u32 conf_type; 518} oct_conf_info[MAX_OCTEON_DEVICES] = { 519 { 520 OCTEON_CONFIG_TYPE_DEFAULT, 521 }, { 522 OCTEON_CONFIG_TYPE_DEFAULT, 523 }, { 524 OCTEON_CONFIG_TYPE_DEFAULT, 525 }, { 526 OCTEON_CONFIG_TYPE_DEFAULT, 527 }, 528}; 529 530static char oct_dev_state_str[OCT_DEV_STATES + 1][32] = { 531 "BEGIN", "PCI-ENABLE-DONE", "PCI-MAP-DONE", "DISPATCH-INIT-DONE", 532 "IQ-INIT-DONE", "SCBUFF-POOL-INIT-DONE", "RESPLIST-INIT-DONE", 533 "DROQ-INIT-DONE", "MBOX-SETUP-DONE", "MSIX-ALLOC-VECTOR-DONE", 534 "INTR-SET-DONE", "IO-QUEUES-INIT-DONE", "CONSOLE-INIT-DONE", 535 "HOST-READY", "CORE-READY", "RUNNING", "IN-RESET", 536 "INVALID" 537}; 538 539static char oct_dev_app_str[CVM_DRV_APP_COUNT + 1][32] = { 540 "BASE", "NIC", "UNKNOWN"}; 541 542static struct octeon_device *octeon_device[MAX_OCTEON_DEVICES]; 543static atomic_t adapter_refcounts[MAX_OCTEON_DEVICES]; 544static atomic_t adapter_fw_states[MAX_OCTEON_DEVICES]; 545 546static u32 octeon_device_count; 547/* locks device array (i.e. octeon_device[]) */ 548static DEFINE_SPINLOCK(octeon_devices_lock); 549 550static struct octeon_core_setup core_setup[MAX_OCTEON_DEVICES]; 551 552static void oct_set_config_info(int oct_id, int conf_type) 553{ 554 if (conf_type < 0 || conf_type > (NUM_OCTEON_CONFS - 1)) 555 conf_type = OCTEON_CONFIG_TYPE_DEFAULT; 556 oct_conf_info[oct_id].conf_type = conf_type; 557} 558 559void octeon_init_device_list(int conf_type) 560{ 561 int i; 562 563 memset(octeon_device, 0, (sizeof(void *) * MAX_OCTEON_DEVICES)); 564 for (i = 0; i < MAX_OCTEON_DEVICES; i++) 565 oct_set_config_info(i, conf_type); 566} 567EXPORT_SYMBOL_GPL(octeon_init_device_list); 568 569static void *__retrieve_octeon_config_info(struct octeon_device *oct, 570 u16 card_type) 571{ 572 u32 oct_id = oct->octeon_id; 573 void *ret = NULL; 574 575 switch (oct_conf_info[oct_id].conf_type) { 576 case OCTEON_CONFIG_TYPE_DEFAULT: 577 if (oct->chip_id == OCTEON_CN66XX) { 578 ret = &default_cn66xx_conf; 579 } else if ((oct->chip_id == OCTEON_CN68XX) && 580 (card_type == LIO_210NV)) { 581 ret = &default_cn68xx_210nv_conf; 582 } else if ((oct->chip_id == OCTEON_CN68XX) && 583 (card_type == LIO_410NV)) { 584 ret = &default_cn68xx_conf; 585 } else if (oct->chip_id == OCTEON_CN23XX_PF_VID) { 586 ret = &default_cn23xx_conf; 587 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) { 588 ret = &default_cn23xx_conf; 589 } 590 break; 591 default: 592 break; 593 } 594 return ret; 595} 596 597static int __verify_octeon_config_info(struct octeon_device *oct, void *conf) 598{ 599 switch (oct->chip_id) { 600 case OCTEON_CN66XX: 601 case OCTEON_CN68XX: 602 return lio_validate_cn6xxx_config_info(oct, conf); 603 case OCTEON_CN23XX_PF_VID: 604 case OCTEON_CN23XX_VF_VID: 605 return 0; 606 default: 607 break; 608 } 609 610 return 1; 611} 612 613void *oct_get_config_info(struct octeon_device *oct, u16 card_type) 614{ 615 void *conf = NULL; 616 617 conf = __retrieve_octeon_config_info(oct, card_type); 618 if (!conf) 619 return NULL; 620 621 if (__verify_octeon_config_info(oct, conf)) { 622 dev_err(&oct->pci_dev->dev, "Configuration verification failed\n"); 623 return NULL; 624 } 625 626 return conf; 627} 628 629char *lio_get_state_string(atomic_t *state_ptr) 630{ 631 s32 istate = (s32)atomic_read(state_ptr); 632 633 if (istate > OCT_DEV_STATES || istate < 0) 634 return oct_dev_state_str[OCT_DEV_STATE_INVALID]; 635 return oct_dev_state_str[istate]; 636} 637EXPORT_SYMBOL_GPL(lio_get_state_string); 638 639static char *get_oct_app_string(u32 app_mode) 640{ 641 if (app_mode <= CVM_DRV_APP_END) 642 return oct_dev_app_str[app_mode - CVM_DRV_APP_START]; 643 return oct_dev_app_str[CVM_DRV_INVALID_APP - CVM_DRV_APP_START]; 644} 645 646void octeon_free_device_mem(struct octeon_device *oct) 647{ 648 int i; 649 650 for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) { 651 if (oct->io_qmask.oq & BIT_ULL(i)) 652 vfree(oct->droq[i]); 653 } 654 655 for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) { 656 if (oct->io_qmask.iq & BIT_ULL(i)) 657 vfree(oct->instr_queue[i]); 658 } 659 660 i = oct->octeon_id; 661 vfree(oct); 662 663 octeon_device[i] = NULL; 664 octeon_device_count--; 665} 666EXPORT_SYMBOL_GPL(octeon_free_device_mem); 667 668static struct octeon_device *octeon_allocate_device_mem(u32 pci_id, 669 u32 priv_size) 670{ 671 struct octeon_device *oct; 672 u8 *buf = NULL; 673 u32 octdevsize = 0, configsize = 0, size; 674 675 switch (pci_id) { 676 case OCTEON_CN68XX: 677 case OCTEON_CN66XX: 678 configsize = sizeof(struct octeon_cn6xxx); 679 break; 680 681 case OCTEON_CN23XX_PF_VID: 682 configsize = sizeof(struct octeon_cn23xx_pf); 683 break; 684 case OCTEON_CN23XX_VF_VID: 685 configsize = sizeof(struct octeon_cn23xx_vf); 686 break; 687 default: 688 pr_err("%s: Unknown PCI Device: 0x%x\n", 689 __func__, 690 pci_id); 691 return NULL; 692 } 693 694 if (configsize & 0x7) 695 configsize += (8 - (configsize & 0x7)); 696 697 octdevsize = sizeof(struct octeon_device); 698 if (octdevsize & 0x7) 699 octdevsize += (8 - (octdevsize & 0x7)); 700 701 if (priv_size & 0x7) 702 priv_size += (8 - (priv_size & 0x7)); 703 704 size = octdevsize + priv_size + configsize + 705 (sizeof(struct octeon_dispatch) * DISPATCH_LIST_SIZE); 706 707 buf = vzalloc(size); 708 if (!buf) 709 return NULL; 710 711 oct = (struct octeon_device *)buf; 712 oct->priv = (void *)(buf + octdevsize); 713 oct->chip = (void *)(buf + octdevsize + priv_size); 714 oct->dispatch.dlist = (struct octeon_dispatch *) 715 (buf + octdevsize + priv_size + configsize); 716 717 return oct; 718} 719 720struct octeon_device *octeon_allocate_device(u32 pci_id, 721 u32 priv_size) 722{ 723 u32 oct_idx = 0; 724 struct octeon_device *oct = NULL; 725 726 spin_lock(&octeon_devices_lock); 727 728 for (oct_idx = 0; oct_idx < MAX_OCTEON_DEVICES; oct_idx++) 729 if (!octeon_device[oct_idx]) 730 break; 731 732 if (oct_idx < MAX_OCTEON_DEVICES) { 733 oct = octeon_allocate_device_mem(pci_id, priv_size); 734 if (oct) { 735 octeon_device_count++; 736 octeon_device[oct_idx] = oct; 737 } 738 } 739 740 spin_unlock(&octeon_devices_lock); 741 if (!oct) 742 return NULL; 743 744 spin_lock_init(&oct->pci_win_lock); 745 spin_lock_init(&oct->mem_access_lock); 746 747 oct->octeon_id = oct_idx; 748 snprintf(oct->device_name, sizeof(oct->device_name), 749 "LiquidIO%d", (oct->octeon_id)); 750 751 return oct; 752} 753EXPORT_SYMBOL_GPL(octeon_allocate_device); 754 755/** Register a device's bus location at initialization time. 756 * @param octeon_dev - pointer to the octeon device structure. 757 * @param bus - PCIe bus # 758 * @param dev - PCIe device # 759 * @param func - PCIe function # 760 * @param is_pf - TRUE for PF, FALSE for VF 761 * @return reference count of device's adapter 762 */ 763int octeon_register_device(struct octeon_device *oct, 764 int bus, int dev, int func, int is_pf) 765{ 766 int idx, refcount; 767 768 oct->loc.bus = bus; 769 oct->loc.dev = dev; 770 oct->loc.func = func; 771 772 oct->adapter_refcount = &adapter_refcounts[oct->octeon_id]; 773 atomic_set(oct->adapter_refcount, 0); 774 775 /* Like the reference count, the f/w state is shared 'per-adapter' */ 776 oct->adapter_fw_state = &adapter_fw_states[oct->octeon_id]; 777 atomic_set(oct->adapter_fw_state, FW_NEEDS_TO_BE_LOADED); 778 779 spin_lock(&octeon_devices_lock); 780 for (idx = (int)oct->octeon_id - 1; idx >= 0; idx--) { 781 if (!octeon_device[idx]) { 782 dev_err(&oct->pci_dev->dev, 783 "%s: Internal driver error, missing dev", 784 __func__); 785 spin_unlock(&octeon_devices_lock); 786 atomic_inc(oct->adapter_refcount); 787 return 1; /* here, refcount is guaranteed to be 1 */ 788 } 789 /* If another device is at same bus/dev, use its refcounter 790 * (and f/w state variable). 791 */ 792 if ((octeon_device[idx]->loc.bus == bus) && 793 (octeon_device[idx]->loc.dev == dev)) { 794 oct->adapter_refcount = 795 octeon_device[idx]->adapter_refcount; 796 oct->adapter_fw_state = 797 octeon_device[idx]->adapter_fw_state; 798 break; 799 } 800 } 801 spin_unlock(&octeon_devices_lock); 802 803 atomic_inc(oct->adapter_refcount); 804 refcount = atomic_read(oct->adapter_refcount); 805 806 dev_dbg(&oct->pci_dev->dev, "%s: %02x:%02x:%d refcount %u", __func__, 807 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount); 808 809 return refcount; 810} 811EXPORT_SYMBOL_GPL(octeon_register_device); 812 813/** Deregister a device at de-initialization time. 814 * @param octeon_dev - pointer to the octeon device structure. 815 * @return reference count of device's adapter 816 */ 817int octeon_deregister_device(struct octeon_device *oct) 818{ 819 int refcount; 820 821 atomic_dec(oct->adapter_refcount); 822 refcount = atomic_read(oct->adapter_refcount); 823 824 dev_dbg(&oct->pci_dev->dev, "%s: %04d:%02d:%d refcount %u", __func__, 825 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount); 826 827 return refcount; 828} 829EXPORT_SYMBOL_GPL(octeon_deregister_device); 830 831int 832octeon_allocate_ioq_vector(struct octeon_device *oct, u32 num_ioqs) 833{ 834 struct octeon_ioq_vector *ioq_vector; 835 int cpu_num; 836 int size; 837 int i; 838 839 size = sizeof(struct octeon_ioq_vector) * num_ioqs; 840 841 oct->ioq_vector = vzalloc(size); 842 if (!oct->ioq_vector) 843 return -1; 844 for (i = 0; i < num_ioqs; i++) { 845 ioq_vector = &oct->ioq_vector[i]; 846 ioq_vector->oct_dev = oct; 847 ioq_vector->iq_index = i; 848 ioq_vector->droq_index = i; 849 ioq_vector->mbox = oct->mbox[i]; 850 851 cpu_num = i % num_online_cpus(); 852 cpumask_set_cpu(cpu_num, &ioq_vector->affinity_mask); 853 854 if (oct->chip_id == OCTEON_CN23XX_PF_VID) 855 ioq_vector->ioq_num = i + oct->sriov_info.pf_srn; 856 else 857 ioq_vector->ioq_num = i; 858 } 859 860 return 0; 861} 862EXPORT_SYMBOL_GPL(octeon_allocate_ioq_vector); 863 864void 865octeon_free_ioq_vector(struct octeon_device *oct) 866{ 867 vfree(oct->ioq_vector); 868} 869EXPORT_SYMBOL_GPL(octeon_free_ioq_vector); 870 871/* this function is only for setting up the first queue */ 872int octeon_setup_instr_queues(struct octeon_device *oct) 873{ 874 u32 num_descs = 0; 875 u32 iq_no = 0; 876 union oct_txpciq txpciq; 877 int numa_node = dev_to_node(&oct->pci_dev->dev); 878 879 if (OCTEON_CN6XXX(oct)) 880 num_descs = 881 CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn6xxx)); 882 else if (OCTEON_CN23XX_PF(oct)) 883 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_pf)); 884 else if (OCTEON_CN23XX_VF(oct)) 885 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_vf)); 886 887 oct->num_iqs = 0; 888 889 oct->instr_queue[0] = vzalloc_node(sizeof(*oct->instr_queue[0]), 890 numa_node); 891 if (!oct->instr_queue[0]) 892 oct->instr_queue[0] = 893 vzalloc(sizeof(struct octeon_instr_queue)); 894 if (!oct->instr_queue[0]) 895 return 1; 896 memset(oct->instr_queue[0], 0, sizeof(struct octeon_instr_queue)); 897 oct->instr_queue[0]->q_index = 0; 898 oct->instr_queue[0]->app_ctx = (void *)(size_t)0; 899 oct->instr_queue[0]->ifidx = 0; 900 txpciq.u64 = 0; 901 txpciq.s.q_no = iq_no; 902 txpciq.s.pkind = oct->pfvf_hsword.pkind; 903 txpciq.s.use_qpg = 0; 904 txpciq.s.qpg = 0; 905 if (octeon_init_instr_queue(oct, txpciq, num_descs)) { 906 /* prevent memory leak */ 907 vfree(oct->instr_queue[0]); 908 oct->instr_queue[0] = NULL; 909 return 1; 910 } 911 912 oct->num_iqs++; 913 return 0; 914} 915EXPORT_SYMBOL_GPL(octeon_setup_instr_queues); 916 917int octeon_setup_output_queues(struct octeon_device *oct) 918{ 919 u32 num_descs = 0; 920 u32 desc_size = 0; 921 u32 oq_no = 0; 922 int numa_node = dev_to_node(&oct->pci_dev->dev); 923 924 if (OCTEON_CN6XXX(oct)) { 925 num_descs = 926 CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn6xxx)); 927 desc_size = 928 CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn6xxx)); 929 } else if (OCTEON_CN23XX_PF(oct)) { 930 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_pf)); 931 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_pf)); 932 } else if (OCTEON_CN23XX_VF(oct)) { 933 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_vf)); 934 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_vf)); 935 } 936 oct->num_oqs = 0; 937 oct->droq[0] = vzalloc_node(sizeof(*oct->droq[0]), numa_node); 938 if (!oct->droq[0]) 939 oct->droq[0] = vzalloc(sizeof(*oct->droq[0])); 940 if (!oct->droq[0]) 941 return 1; 942 943 if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) { 944 vfree(oct->droq[oq_no]); 945 oct->droq[oq_no] = NULL; 946 return 1; 947 } 948 oct->num_oqs++; 949 950 return 0; 951} 952EXPORT_SYMBOL_GPL(octeon_setup_output_queues); 953 954int octeon_set_io_queues_off(struct octeon_device *oct) 955{ 956 int loop = BUSY_READING_REG_VF_LOOP_COUNT; 957 958 if (OCTEON_CN6XXX(oct)) { 959 octeon_write_csr(oct, CN6XXX_SLI_PKT_INSTR_ENB, 0); 960 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, 0); 961 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) { 962 u32 q_no; 963 964 /* IOQs will already be in reset. 965 * If RST bit is set, wait for quiet bit to be set. 966 * Once quiet bit is set, clear the RST bit. 967 */ 968 for (q_no = 0; q_no < oct->sriov_info.rings_per_vf; q_no++) { 969 u64 reg_val = octeon_read_csr64( 970 oct, CN23XX_VF_SLI_IQ_PKT_CONTROL64(q_no)); 971 972 while ((reg_val & CN23XX_PKT_INPUT_CTL_RST) && 973 !(reg_val & CN23XX_PKT_INPUT_CTL_QUIET) && 974 loop) { 975 reg_val = octeon_read_csr64( 976 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no)); 977 loop--; 978 } 979 if (!loop) { 980 dev_err(&oct->pci_dev->dev, 981 "clearing the reset reg failed or setting the quiet reg failed for qno: %u\n", 982 q_no); 983 return -1; 984 } 985 986 reg_val = reg_val & ~CN23XX_PKT_INPUT_CTL_RST; 987 octeon_write_csr64(oct, 988 CN23XX_SLI_IQ_PKT_CONTROL64(q_no), 989 reg_val); 990 991 reg_val = octeon_read_csr64( 992 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no)); 993 if (reg_val & CN23XX_PKT_INPUT_CTL_RST) { 994 dev_err(&oct->pci_dev->dev, 995 "unable to reset qno %u\n", q_no); 996 return -1; 997 } 998 } 999 } 1000 return 0; 1001} 1002EXPORT_SYMBOL_GPL(octeon_set_io_queues_off); 1003 1004void octeon_set_droq_pkt_op(struct octeon_device *oct, 1005 u32 q_no, 1006 u32 enable) 1007{ 1008 u32 reg_val = 0; 1009 1010 /* Disable the i/p and o/p queues for this Octeon. */ 1011 if (OCTEON_CN6XXX(oct)) { 1012 reg_val = octeon_read_csr(oct, CN6XXX_SLI_PKT_OUT_ENB); 1013 1014 if (enable) 1015 reg_val = reg_val | (1 << q_no); 1016 else 1017 reg_val = reg_val & (~(1 << q_no)); 1018 1019 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, reg_val); 1020 } 1021} 1022 1023int octeon_init_dispatch_list(struct octeon_device *oct) 1024{ 1025 u32 i; 1026 1027 oct->dispatch.count = 0; 1028 1029 for (i = 0; i < DISPATCH_LIST_SIZE; i++) { 1030 oct->dispatch.dlist[i].opcode = 0; 1031 INIT_LIST_HEAD(&oct->dispatch.dlist[i].list); 1032 } 1033 1034 for (i = 0; i <= REQTYPE_LAST; i++) 1035 octeon_register_reqtype_free_fn(oct, i, NULL); 1036 1037 spin_lock_init(&oct->dispatch.lock); 1038 1039 return 0; 1040} 1041EXPORT_SYMBOL_GPL(octeon_init_dispatch_list); 1042 1043void octeon_delete_dispatch_list(struct octeon_device *oct) 1044{ 1045 u32 i; 1046 struct list_head freelist, *temp, *tmp2; 1047 1048 INIT_LIST_HEAD(&freelist); 1049 1050 spin_lock_bh(&oct->dispatch.lock); 1051 1052 for (i = 0; i < DISPATCH_LIST_SIZE; i++) { 1053 struct list_head *dispatch; 1054 1055 dispatch = &oct->dispatch.dlist[i].list; 1056 while (dispatch->next != dispatch) { 1057 temp = dispatch->next; 1058 list_move_tail(temp, &freelist); 1059 } 1060 1061 oct->dispatch.dlist[i].opcode = 0; 1062 } 1063 1064 oct->dispatch.count = 0; 1065 1066 spin_unlock_bh(&oct->dispatch.lock); 1067 1068 list_for_each_safe(temp, tmp2, &freelist) { 1069 list_del(temp); 1070 kfree(temp); 1071 } 1072} 1073EXPORT_SYMBOL_GPL(octeon_delete_dispatch_list); 1074 1075octeon_dispatch_fn_t 1076octeon_get_dispatch(struct octeon_device *octeon_dev, u16 opcode, 1077 u16 subcode) 1078{ 1079 u32 idx; 1080 struct list_head *dispatch; 1081 octeon_dispatch_fn_t fn = NULL; 1082 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode); 1083 1084 idx = combined_opcode & OCTEON_OPCODE_MASK; 1085 1086 spin_lock_bh(&octeon_dev->dispatch.lock); 1087 1088 if (octeon_dev->dispatch.count == 0) { 1089 spin_unlock_bh(&octeon_dev->dispatch.lock); 1090 return NULL; 1091 } 1092 1093 if (!(octeon_dev->dispatch.dlist[idx].opcode)) { 1094 spin_unlock_bh(&octeon_dev->dispatch.lock); 1095 return NULL; 1096 } 1097 1098 if (octeon_dev->dispatch.dlist[idx].opcode == combined_opcode) { 1099 fn = octeon_dev->dispatch.dlist[idx].dispatch_fn; 1100 } else { 1101 list_for_each(dispatch, 1102 &octeon_dev->dispatch.dlist[idx].list) { 1103 if (((struct octeon_dispatch *)dispatch)->opcode == 1104 combined_opcode) { 1105 fn = ((struct octeon_dispatch *) 1106 dispatch)->dispatch_fn; 1107 break; 1108 } 1109 } 1110 } 1111 1112 spin_unlock_bh(&octeon_dev->dispatch.lock); 1113 return fn; 1114} 1115 1116/* octeon_register_dispatch_fn 1117 * Parameters: 1118 * octeon_id - id of the octeon device. 1119 * opcode - opcode for which driver should call the registered function 1120 * subcode - subcode for which driver should call the registered function 1121 * fn - The function to call when a packet with "opcode" arrives in 1122 * octeon output queues. 1123 * fn_arg - The argument to be passed when calling function "fn". 1124 * Description: 1125 * Registers a function and its argument to be called when a packet 1126 * arrives in Octeon output queues with "opcode". 1127 * Returns: 1128 * Success: 0 1129 * Failure: 1 1130 * Locks: 1131 * No locks are held. 1132 */ 1133int 1134octeon_register_dispatch_fn(struct octeon_device *oct, 1135 u16 opcode, 1136 u16 subcode, 1137 octeon_dispatch_fn_t fn, void *fn_arg) 1138{ 1139 u32 idx; 1140 octeon_dispatch_fn_t pfn; 1141 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode); 1142 1143 idx = combined_opcode & OCTEON_OPCODE_MASK; 1144 1145 spin_lock_bh(&oct->dispatch.lock); 1146 /* Add dispatch function to first level of lookup table */ 1147 if (oct->dispatch.dlist[idx].opcode == 0) { 1148 oct->dispatch.dlist[idx].opcode = combined_opcode; 1149 oct->dispatch.dlist[idx].dispatch_fn = fn; 1150 oct->dispatch.dlist[idx].arg = fn_arg; 1151 oct->dispatch.count++; 1152 spin_unlock_bh(&oct->dispatch.lock); 1153 return 0; 1154 } 1155 1156 spin_unlock_bh(&oct->dispatch.lock); 1157 1158 /* Check if there was a function already registered for this 1159 * opcode/subcode. 1160 */ 1161 pfn = octeon_get_dispatch(oct, opcode, subcode); 1162 if (!pfn) { 1163 struct octeon_dispatch *dispatch; 1164 1165 dev_dbg(&oct->pci_dev->dev, 1166 "Adding opcode to dispatch list linked list\n"); 1167 dispatch = kmalloc(sizeof(*dispatch), GFP_KERNEL); 1168 if (!dispatch) 1169 return 1; 1170 1171 dispatch->opcode = combined_opcode; 1172 dispatch->dispatch_fn = fn; 1173 dispatch->arg = fn_arg; 1174 1175 /* Add dispatch function to linked list of fn ptrs 1176 * at the hashed index. 1177 */ 1178 spin_lock_bh(&oct->dispatch.lock); 1179 list_add(&dispatch->list, &oct->dispatch.dlist[idx].list); 1180 oct->dispatch.count++; 1181 spin_unlock_bh(&oct->dispatch.lock); 1182 1183 } else { 1184 if (pfn == fn && 1185 octeon_get_dispatch_arg(oct, opcode, subcode) == fn_arg) 1186 return 0; 1187 1188 dev_err(&oct->pci_dev->dev, 1189 "Found previously registered dispatch fn for opcode/subcode: %x/%x\n", 1190 opcode, subcode); 1191 return 1; 1192 } 1193 1194 return 0; 1195} 1196EXPORT_SYMBOL_GPL(octeon_register_dispatch_fn); 1197 1198int octeon_core_drv_init(struct octeon_recv_info *recv_info, void *buf) 1199{ 1200 u32 i; 1201 char app_name[16]; 1202 struct octeon_device *oct = (struct octeon_device *)buf; 1203 struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt; 1204 struct octeon_core_setup *cs = NULL; 1205 u32 num_nic_ports = 0; 1206 1207 if (OCTEON_CN6XXX(oct)) 1208 num_nic_ports = 1209 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn6xxx)); 1210 else if (OCTEON_CN23XX_PF(oct)) 1211 num_nic_ports = 1212 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn23xx_pf)); 1213 1214 if (atomic_read(&oct->status) >= OCT_DEV_RUNNING) { 1215 dev_err(&oct->pci_dev->dev, "Received CORE OK when device state is 0x%x\n", 1216 atomic_read(&oct->status)); 1217 goto core_drv_init_err; 1218 } 1219 1220 strscpy(app_name, 1221 get_oct_app_string( 1222 (u32)recv_pkt->rh.r_core_drv_init.app_mode), 1223 sizeof(app_name)); 1224 oct->app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1225 if (recv_pkt->rh.r_core_drv_init.app_mode == CVM_DRV_NIC_APP) { 1226 oct->fw_info.max_nic_ports = 1227 (u32)recv_pkt->rh.r_core_drv_init.max_nic_ports; 1228 oct->fw_info.num_gmx_ports = 1229 (u32)recv_pkt->rh.r_core_drv_init.num_gmx_ports; 1230 } 1231 1232 if (oct->fw_info.max_nic_ports < num_nic_ports) { 1233 dev_err(&oct->pci_dev->dev, 1234 "Config has more ports than firmware allows (%d > %d).\n", 1235 num_nic_ports, oct->fw_info.max_nic_ports); 1236 goto core_drv_init_err; 1237 } 1238 oct->fw_info.app_cap_flags = recv_pkt->rh.r_core_drv_init.app_cap_flags; 1239 oct->fw_info.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1240 oct->pfvf_hsword.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1241 1242 oct->pfvf_hsword.pkind = recv_pkt->rh.r_core_drv_init.pkind; 1243 1244 for (i = 0; i < oct->num_iqs; i++) 1245 oct->instr_queue[i]->txpciq.s.pkind = oct->pfvf_hsword.pkind; 1246 1247 atomic_set(&oct->status, OCT_DEV_CORE_OK); 1248 1249 cs = &core_setup[oct->octeon_id]; 1250 1251 if (recv_pkt->buffer_size[0] != (sizeof(*cs) + OCT_DROQ_INFO_SIZE)) { 1252 dev_dbg(&oct->pci_dev->dev, "Core setup bytes expected %u found %d\n", 1253 (u32)sizeof(*cs), 1254 recv_pkt->buffer_size[0]); 1255 } 1256 1257 memcpy(cs, get_rbd( 1258 recv_pkt->buffer_ptr[0]) + OCT_DROQ_INFO_SIZE, sizeof(*cs)); 1259 1260 strscpy(oct->boardinfo.name, cs->boardname, 1261 sizeof(oct->boardinfo.name)); 1262 strscpy(oct->boardinfo.serial_number, cs->board_serial_number, 1263 sizeof(oct->boardinfo.serial_number)); 1264 1265 octeon_swap_8B_data((u64 *)cs, (sizeof(*cs) >> 3)); 1266 1267 oct->boardinfo.major = cs->board_rev_major; 1268 oct->boardinfo.minor = cs->board_rev_minor; 1269 1270 dev_info(&oct->pci_dev->dev, 1271 "Running %s (%llu Hz)\n", 1272 app_name, CVM_CAST64(cs->corefreq)); 1273 1274core_drv_init_err: 1275 for (i = 0; i < recv_pkt->buffer_count; i++) 1276 recv_buffer_free(recv_pkt->buffer_ptr[i]); 1277 octeon_free_recv_info(recv_info); 1278 return 0; 1279} 1280EXPORT_SYMBOL_GPL(octeon_core_drv_init); 1281 1282int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no) 1283 1284{ 1285 if (oct && (q_no < MAX_OCTEON_INSTR_QUEUES(oct)) && 1286 (oct->io_qmask.iq & BIT_ULL(q_no))) 1287 return oct->instr_queue[q_no]->max_count; 1288 1289 return -1; 1290} 1291EXPORT_SYMBOL_GPL(octeon_get_tx_qsize); 1292 1293int octeon_get_rx_qsize(struct octeon_device *oct, u32 q_no) 1294{ 1295 if (oct && (q_no < MAX_OCTEON_OUTPUT_QUEUES(oct)) && 1296 (oct->io_qmask.oq & BIT_ULL(q_no))) 1297 return oct->droq[q_no]->max_count; 1298 return -1; 1299} 1300EXPORT_SYMBOL_GPL(octeon_get_rx_qsize); 1301 1302/* Retruns the host firmware handshake OCTEON specific configuration */ 1303struct octeon_config *octeon_get_conf(struct octeon_device *oct) 1304{ 1305 struct octeon_config *default_oct_conf = NULL; 1306 1307 /* check the OCTEON Device model & return the corresponding octeon 1308 * configuration 1309 */ 1310 1311 if (OCTEON_CN6XXX(oct)) { 1312 default_oct_conf = 1313 (struct octeon_config *)(CHIP_CONF(oct, cn6xxx)); 1314 } else if (OCTEON_CN23XX_PF(oct)) { 1315 default_oct_conf = (struct octeon_config *) 1316 (CHIP_CONF(oct, cn23xx_pf)); 1317 } else if (OCTEON_CN23XX_VF(oct)) { 1318 default_oct_conf = (struct octeon_config *) 1319 (CHIP_CONF(oct, cn23xx_vf)); 1320 } 1321 return default_oct_conf; 1322} 1323EXPORT_SYMBOL_GPL(octeon_get_conf); 1324 1325/* scratch register address is same in all the OCT-II and CN70XX models */ 1326#define CNXX_SLI_SCRATCH1 0x3C0 1327 1328/* Get the octeon device pointer. 1329 * @param octeon_id - The id for which the octeon device pointer is required. 1330 * @return Success: Octeon device pointer. 1331 * @return Failure: NULL. 1332 */ 1333struct octeon_device *lio_get_device(u32 octeon_id) 1334{ 1335 if (octeon_id >= MAX_OCTEON_DEVICES) 1336 return NULL; 1337 else 1338 return octeon_device[octeon_id]; 1339} 1340EXPORT_SYMBOL_GPL(lio_get_device); 1341 1342u64 lio_pci_readq(struct octeon_device *oct, u64 addr) 1343{ 1344 u64 val64; 1345 unsigned long flags; 1346 u32 addrhi; 1347 1348 spin_lock_irqsave(&oct->pci_win_lock, flags); 1349 1350 /* The windowed read happens when the LSB of the addr is written. 1351 * So write MSB first 1352 */ 1353 addrhi = (addr >> 32); 1354 if ((oct->chip_id == OCTEON_CN66XX) || 1355 (oct->chip_id == OCTEON_CN68XX) || 1356 (oct->chip_id == OCTEON_CN23XX_PF_VID)) 1357 addrhi |= 0x00060000; 1358 writel(addrhi, oct->reg_list.pci_win_rd_addr_hi); 1359 1360 /* Read back to preserve ordering of writes */ 1361 readl(oct->reg_list.pci_win_rd_addr_hi); 1362 1363 writel(addr & 0xffffffff, oct->reg_list.pci_win_rd_addr_lo); 1364 readl(oct->reg_list.pci_win_rd_addr_lo); 1365 1366 val64 = readq(oct->reg_list.pci_win_rd_data); 1367 1368 spin_unlock_irqrestore(&oct->pci_win_lock, flags); 1369 1370 return val64; 1371} 1372EXPORT_SYMBOL_GPL(lio_pci_readq); 1373 1374void lio_pci_writeq(struct octeon_device *oct, 1375 u64 val, 1376 u64 addr) 1377{ 1378 unsigned long flags; 1379 1380 spin_lock_irqsave(&oct->pci_win_lock, flags); 1381 1382 writeq(addr, oct->reg_list.pci_win_wr_addr); 1383 1384 /* The write happens when the LSB is written. So write MSB first. */ 1385 writel(val >> 32, oct->reg_list.pci_win_wr_data_hi); 1386 /* Read the MSB to ensure ordering of writes. */ 1387 readl(oct->reg_list.pci_win_wr_data_hi); 1388 1389 writel(val & 0xffffffff, oct->reg_list.pci_win_wr_data_lo); 1390 1391 spin_unlock_irqrestore(&oct->pci_win_lock, flags); 1392} 1393EXPORT_SYMBOL_GPL(lio_pci_writeq); 1394 1395int octeon_mem_access_ok(struct octeon_device *oct) 1396{ 1397 u64 access_okay = 0; 1398 u64 lmc0_reset_ctl; 1399 1400 /* Check to make sure a DDR interface is enabled */ 1401 if (OCTEON_CN23XX_PF(oct)) { 1402 lmc0_reset_ctl = lio_pci_readq(oct, CN23XX_LMC0_RESET_CTL); 1403 access_okay = 1404 (lmc0_reset_ctl & CN23XX_LMC0_RESET_CTL_DDR3RST_MASK); 1405 } else { 1406 lmc0_reset_ctl = lio_pci_readq(oct, CN6XXX_LMC0_RESET_CTL); 1407 access_okay = 1408 (lmc0_reset_ctl & CN6XXX_LMC0_RESET_CTL_DDR3RST_MASK); 1409 } 1410 1411 return access_okay ? 0 : 1; 1412} 1413EXPORT_SYMBOL_GPL(octeon_mem_access_ok); 1414 1415int octeon_wait_for_ddr_init(struct octeon_device *oct, u32 *timeout) 1416{ 1417 int ret = 1; 1418 u32 ms; 1419 1420 if (!timeout) 1421 return ret; 1422 1423 for (ms = 0; (ret != 0) && ((*timeout == 0) || (ms <= *timeout)); 1424 ms += HZ / 10) { 1425 ret = octeon_mem_access_ok(oct); 1426 1427 /* wait 100 ms */ 1428 if (ret) 1429 schedule_timeout_uninterruptible(HZ / 10); 1430 } 1431 1432 return ret; 1433} 1434EXPORT_SYMBOL_GPL(octeon_wait_for_ddr_init); 1435 1436/* Get the octeon id assigned to the octeon device passed as argument. 1437 * This function is exported to other modules. 1438 * @param dev - octeon device pointer passed as a void *. 1439 * @return octeon device id 1440 */ 1441int lio_get_device_id(void *dev) 1442{ 1443 struct octeon_device *octeon_dev = (struct octeon_device *)dev; 1444 u32 i; 1445 1446 for (i = 0; i < MAX_OCTEON_DEVICES; i++) 1447 if (octeon_device[i] == octeon_dev) 1448 return octeon_dev->octeon_id; 1449 return -1; 1450} 1451 1452void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq) 1453{ 1454 u64 instr_cnt; 1455 u32 pkts_pend; 1456 struct octeon_device *oct = NULL; 1457 1458 /* the whole thing needs to be atomic, ideally */ 1459 if (droq) { 1460 pkts_pend = (u32)atomic_read(&droq->pkts_pending); 1461 writel(droq->pkt_count - pkts_pend, droq->pkts_sent_reg); 1462 droq->pkt_count = pkts_pend; 1463 oct = droq->oct_dev; 1464 } 1465 if (iq) { 1466 spin_lock_bh(&iq->lock); 1467 writel(iq->pkts_processed, iq->inst_cnt_reg); 1468 iq->pkt_in_done -= iq->pkts_processed; 1469 iq->pkts_processed = 0; 1470 /* this write needs to be flushed before we release the lock */ 1471 spin_unlock_bh(&iq->lock); 1472 oct = iq->oct_dev; 1473 } 1474 /*write resend. Writing RESEND in SLI_PKTX_CNTS should be enough 1475 *to trigger tx interrupts as well, if they are pending. 1476 */ 1477 if (oct && (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))) { 1478 if (droq) 1479 writeq(CN23XX_INTR_RESEND, droq->pkts_sent_reg); 1480 /*we race with firmrware here. read and write the IN_DONE_CNTS*/ 1481 else if (iq) { 1482 instr_cnt = readq(iq->inst_cnt_reg); 1483 writeq(((instr_cnt & 0xFFFFFFFF00000000ULL) | 1484 CN23XX_INTR_RESEND), 1485 iq->inst_cnt_reg); 1486 } 1487 } 1488} 1489EXPORT_SYMBOL_GPL(lio_enable_irq); 1490