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 */ 36 static 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 */ 144 145 static 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 */ 310 static 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 }; 414 415 static 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 }; 515 516 static 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 }; 529 530 static 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 }; 538 539 static char oct_dev_app_str[CVM_DRV_APP_COUNT + 1][32] = { 540 "BASE", "NIC", "UNKNOWN"}; 541 542 static struct octeon_device *octeon_device[MAX_OCTEON_DEVICES]; 543 static atomic_t adapter_refcounts[MAX_OCTEON_DEVICES]; 544 static atomic_t adapter_fw_states[MAX_OCTEON_DEVICES]; 545 546 static u32 octeon_device_count; 547 /* locks device array (i.e. octeon_device[]) */ 548 static spinlock_t octeon_devices_lock; 549 550 static struct octeon_core_setup core_setup[MAX_OCTEON_DEVICES]; 551 552 static 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 } 558 559 void 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 spin_lock_init(&octeon_devices_lock); 567 } 568 569 static 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 } 596 597 static 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 } 612 613 void *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 } 628 629 char *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 } 637 638 static char *get_oct_app_string(u32 app_mode) 639 { 640 if (app_mode <= CVM_DRV_APP_END) 641 return oct_dev_app_str[app_mode - CVM_DRV_APP_START]; 642 return oct_dev_app_str[CVM_DRV_INVALID_APP - CVM_DRV_APP_START]; 643 } 644 645 void octeon_free_device_mem(struct octeon_device *oct) 646 { 647 int i; 648 649 for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) { 650 if (oct->io_qmask.oq & BIT_ULL(i)) 651 vfree(oct->droq[i]); 652 } 653 654 for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) { 655 if (oct->io_qmask.iq & BIT_ULL(i)) 656 vfree(oct->instr_queue[i]); 657 } 658 659 i = oct->octeon_id; 660 vfree(oct); 661 662 octeon_device[i] = NULL; 663 octeon_device_count--; 664 } 665 666 static struct octeon_device *octeon_allocate_device_mem(u32 pci_id, 667 u32 priv_size) 668 { 669 struct octeon_device *oct; 670 u8 *buf = NULL; 671 u32 octdevsize = 0, configsize = 0, size; 672 673 switch (pci_id) { 674 case OCTEON_CN68XX: 675 case OCTEON_CN66XX: 676 configsize = sizeof(struct octeon_cn6xxx); 677 break; 678 679 case OCTEON_CN23XX_PF_VID: 680 configsize = sizeof(struct octeon_cn23xx_pf); 681 break; 682 case OCTEON_CN23XX_VF_VID: 683 configsize = sizeof(struct octeon_cn23xx_vf); 684 break; 685 default: 686 pr_err("%s: Unknown PCI Device: 0x%x\n", 687 __func__, 688 pci_id); 689 return NULL; 690 } 691 692 if (configsize & 0x7) 693 configsize += (8 - (configsize & 0x7)); 694 695 octdevsize = sizeof(struct octeon_device); 696 if (octdevsize & 0x7) 697 octdevsize += (8 - (octdevsize & 0x7)); 698 699 if (priv_size & 0x7) 700 priv_size += (8 - (priv_size & 0x7)); 701 702 size = octdevsize + priv_size + configsize + 703 (sizeof(struct octeon_dispatch) * DISPATCH_LIST_SIZE); 704 705 buf = vzalloc(size); 706 if (!buf) 707 return NULL; 708 709 oct = (struct octeon_device *)buf; 710 oct->priv = (void *)(buf + octdevsize); 711 oct->chip = (void *)(buf + octdevsize + priv_size); 712 oct->dispatch.dlist = (struct octeon_dispatch *) 713 (buf + octdevsize + priv_size + configsize); 714 715 return oct; 716 } 717 718 struct octeon_device *octeon_allocate_device(u32 pci_id, 719 u32 priv_size) 720 { 721 u32 oct_idx = 0; 722 struct octeon_device *oct = NULL; 723 724 spin_lock(&octeon_devices_lock); 725 726 for (oct_idx = 0; oct_idx < MAX_OCTEON_DEVICES; oct_idx++) 727 if (!octeon_device[oct_idx]) 728 break; 729 730 if (oct_idx < MAX_OCTEON_DEVICES) { 731 oct = octeon_allocate_device_mem(pci_id, priv_size); 732 if (oct) { 733 octeon_device_count++; 734 octeon_device[oct_idx] = oct; 735 } 736 } 737 738 spin_unlock(&octeon_devices_lock); 739 if (!oct) 740 return NULL; 741 742 spin_lock_init(&oct->pci_win_lock); 743 spin_lock_init(&oct->mem_access_lock); 744 745 oct->octeon_id = oct_idx; 746 snprintf(oct->device_name, sizeof(oct->device_name), 747 "LiquidIO%d", (oct->octeon_id)); 748 749 return oct; 750 } 751 752 /** Register a device's bus location at initialization time. 753 * @param octeon_dev - pointer to the octeon device structure. 754 * @param bus - PCIe bus # 755 * @param dev - PCIe device # 756 * @param func - PCIe function # 757 * @param is_pf - TRUE for PF, FALSE for VF 758 * @return reference count of device's adapter 759 */ 760 int octeon_register_device(struct octeon_device *oct, 761 int bus, int dev, int func, int is_pf) 762 { 763 int idx, refcount; 764 765 oct->loc.bus = bus; 766 oct->loc.dev = dev; 767 oct->loc.func = func; 768 769 oct->adapter_refcount = &adapter_refcounts[oct->octeon_id]; 770 atomic_set(oct->adapter_refcount, 0); 771 772 /* Like the reference count, the f/w state is shared 'per-adapter' */ 773 oct->adapter_fw_state = &adapter_fw_states[oct->octeon_id]; 774 atomic_set(oct->adapter_fw_state, FW_NEEDS_TO_BE_LOADED); 775 776 spin_lock(&octeon_devices_lock); 777 for (idx = (int)oct->octeon_id - 1; idx >= 0; idx--) { 778 if (!octeon_device[idx]) { 779 dev_err(&oct->pci_dev->dev, 780 "%s: Internal driver error, missing dev", 781 __func__); 782 spin_unlock(&octeon_devices_lock); 783 atomic_inc(oct->adapter_refcount); 784 return 1; /* here, refcount is guaranteed to be 1 */ 785 } 786 /* If another device is at same bus/dev, use its refcounter 787 * (and f/w state variable). 788 */ 789 if ((octeon_device[idx]->loc.bus == bus) && 790 (octeon_device[idx]->loc.dev == dev)) { 791 oct->adapter_refcount = 792 octeon_device[idx]->adapter_refcount; 793 oct->adapter_fw_state = 794 octeon_device[idx]->adapter_fw_state; 795 break; 796 } 797 } 798 spin_unlock(&octeon_devices_lock); 799 800 atomic_inc(oct->adapter_refcount); 801 refcount = atomic_read(oct->adapter_refcount); 802 803 dev_dbg(&oct->pci_dev->dev, "%s: %02x:%02x:%d refcount %u", __func__, 804 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount); 805 806 return refcount; 807 } 808 809 /** Deregister a device at de-initialization time. 810 * @param octeon_dev - pointer to the octeon device structure. 811 * @return reference count of device's adapter 812 */ 813 int octeon_deregister_device(struct octeon_device *oct) 814 { 815 int refcount; 816 817 atomic_dec(oct->adapter_refcount); 818 refcount = atomic_read(oct->adapter_refcount); 819 820 dev_dbg(&oct->pci_dev->dev, "%s: %04d:%02d:%d refcount %u", __func__, 821 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount); 822 823 return refcount; 824 } 825 826 int 827 octeon_allocate_ioq_vector(struct octeon_device *oct) 828 { 829 int i, num_ioqs = 0; 830 struct octeon_ioq_vector *ioq_vector; 831 int cpu_num; 832 int size; 833 834 if (OCTEON_CN23XX_PF(oct)) 835 num_ioqs = oct->sriov_info.num_pf_rings; 836 else if (OCTEON_CN23XX_VF(oct)) 837 num_ioqs = oct->sriov_info.rings_per_vf; 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 return 0; 860 } 861 862 void 863 octeon_free_ioq_vector(struct octeon_device *oct) 864 { 865 vfree(oct->ioq_vector); 866 } 867 868 /* this function is only for setting up the first queue */ 869 int octeon_setup_instr_queues(struct octeon_device *oct) 870 { 871 u32 num_descs = 0; 872 u32 iq_no = 0; 873 union oct_txpciq txpciq; 874 int numa_node = dev_to_node(&oct->pci_dev->dev); 875 876 if (OCTEON_CN6XXX(oct)) 877 num_descs = 878 CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn6xxx)); 879 else if (OCTEON_CN23XX_PF(oct)) 880 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_pf)); 881 else if (OCTEON_CN23XX_VF(oct)) 882 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_vf)); 883 884 oct->num_iqs = 0; 885 886 oct->instr_queue[0] = vzalloc_node(sizeof(*oct->instr_queue[0]), 887 numa_node); 888 if (!oct->instr_queue[0]) 889 oct->instr_queue[0] = 890 vzalloc(sizeof(struct octeon_instr_queue)); 891 if (!oct->instr_queue[0]) 892 return 1; 893 memset(oct->instr_queue[0], 0, sizeof(struct octeon_instr_queue)); 894 oct->instr_queue[0]->q_index = 0; 895 oct->instr_queue[0]->app_ctx = (void *)(size_t)0; 896 oct->instr_queue[0]->ifidx = 0; 897 txpciq.u64 = 0; 898 txpciq.s.q_no = iq_no; 899 txpciq.s.pkind = oct->pfvf_hsword.pkind; 900 txpciq.s.use_qpg = 0; 901 txpciq.s.qpg = 0; 902 if (octeon_init_instr_queue(oct, txpciq, num_descs)) { 903 /* prevent memory leak */ 904 vfree(oct->instr_queue[0]); 905 oct->instr_queue[0] = NULL; 906 return 1; 907 } 908 909 oct->num_iqs++; 910 return 0; 911 } 912 913 int octeon_setup_output_queues(struct octeon_device *oct) 914 { 915 u32 num_descs = 0; 916 u32 desc_size = 0; 917 u32 oq_no = 0; 918 int numa_node = dev_to_node(&oct->pci_dev->dev); 919 920 if (OCTEON_CN6XXX(oct)) { 921 num_descs = 922 CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn6xxx)); 923 desc_size = 924 CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn6xxx)); 925 } else if (OCTEON_CN23XX_PF(oct)) { 926 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_pf)); 927 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_pf)); 928 } else if (OCTEON_CN23XX_VF(oct)) { 929 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_vf)); 930 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_vf)); 931 } 932 oct->num_oqs = 0; 933 oct->droq[0] = vzalloc_node(sizeof(*oct->droq[0]), numa_node); 934 if (!oct->droq[0]) 935 oct->droq[0] = vzalloc(sizeof(*oct->droq[0])); 936 if (!oct->droq[0]) 937 return 1; 938 939 if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) { 940 vfree(oct->droq[oq_no]); 941 oct->droq[oq_no] = NULL; 942 return 1; 943 } 944 oct->num_oqs++; 945 946 return 0; 947 } 948 949 int octeon_set_io_queues_off(struct octeon_device *oct) 950 { 951 int loop = BUSY_READING_REG_VF_LOOP_COUNT; 952 953 if (OCTEON_CN6XXX(oct)) { 954 octeon_write_csr(oct, CN6XXX_SLI_PKT_INSTR_ENB, 0); 955 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, 0); 956 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) { 957 u32 q_no; 958 959 /* IOQs will already be in reset. 960 * If RST bit is set, wait for quiet bit to be set. 961 * Once quiet bit is set, clear the RST bit. 962 */ 963 for (q_no = 0; q_no < oct->sriov_info.rings_per_vf; q_no++) { 964 u64 reg_val = octeon_read_csr64( 965 oct, CN23XX_VF_SLI_IQ_PKT_CONTROL64(q_no)); 966 967 while ((reg_val & CN23XX_PKT_INPUT_CTL_RST) && 968 !(reg_val & CN23XX_PKT_INPUT_CTL_QUIET) && 969 loop) { 970 reg_val = octeon_read_csr64( 971 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no)); 972 loop--; 973 } 974 if (!loop) { 975 dev_err(&oct->pci_dev->dev, 976 "clearing the reset reg failed or setting the quiet reg failed for qno: %u\n", 977 q_no); 978 return -1; 979 } 980 981 reg_val = reg_val & ~CN23XX_PKT_INPUT_CTL_RST; 982 octeon_write_csr64(oct, 983 CN23XX_SLI_IQ_PKT_CONTROL64(q_no), 984 reg_val); 985 986 reg_val = octeon_read_csr64( 987 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no)); 988 if (reg_val & CN23XX_PKT_INPUT_CTL_RST) { 989 dev_err(&oct->pci_dev->dev, 990 "unable to reset qno %u\n", q_no); 991 return -1; 992 } 993 } 994 } 995 return 0; 996 } 997 998 void octeon_set_droq_pkt_op(struct octeon_device *oct, 999 u32 q_no, 1000 u32 enable) 1001 { 1002 u32 reg_val = 0; 1003 1004 /* Disable the i/p and o/p queues for this Octeon. */ 1005 if (OCTEON_CN6XXX(oct)) { 1006 reg_val = octeon_read_csr(oct, CN6XXX_SLI_PKT_OUT_ENB); 1007 1008 if (enable) 1009 reg_val = reg_val | (1 << q_no); 1010 else 1011 reg_val = reg_val & (~(1 << q_no)); 1012 1013 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, reg_val); 1014 } 1015 } 1016 1017 int octeon_init_dispatch_list(struct octeon_device *oct) 1018 { 1019 u32 i; 1020 1021 oct->dispatch.count = 0; 1022 1023 for (i = 0; i < DISPATCH_LIST_SIZE; i++) { 1024 oct->dispatch.dlist[i].opcode = 0; 1025 INIT_LIST_HEAD(&oct->dispatch.dlist[i].list); 1026 } 1027 1028 for (i = 0; i <= REQTYPE_LAST; i++) 1029 octeon_register_reqtype_free_fn(oct, i, NULL); 1030 1031 spin_lock_init(&oct->dispatch.lock); 1032 1033 return 0; 1034 } 1035 1036 void octeon_delete_dispatch_list(struct octeon_device *oct) 1037 { 1038 u32 i; 1039 struct list_head freelist, *temp, *tmp2; 1040 1041 INIT_LIST_HEAD(&freelist); 1042 1043 spin_lock_bh(&oct->dispatch.lock); 1044 1045 for (i = 0; i < DISPATCH_LIST_SIZE; i++) { 1046 struct list_head *dispatch; 1047 1048 dispatch = &oct->dispatch.dlist[i].list; 1049 while (dispatch->next != dispatch) { 1050 temp = dispatch->next; 1051 list_del(temp); 1052 list_add_tail(temp, &freelist); 1053 } 1054 1055 oct->dispatch.dlist[i].opcode = 0; 1056 } 1057 1058 oct->dispatch.count = 0; 1059 1060 spin_unlock_bh(&oct->dispatch.lock); 1061 1062 list_for_each_safe(temp, tmp2, &freelist) { 1063 list_del(temp); 1064 vfree(temp); 1065 } 1066 } 1067 1068 octeon_dispatch_fn_t 1069 octeon_get_dispatch(struct octeon_device *octeon_dev, u16 opcode, 1070 u16 subcode) 1071 { 1072 u32 idx; 1073 struct list_head *dispatch; 1074 octeon_dispatch_fn_t fn = NULL; 1075 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode); 1076 1077 idx = combined_opcode & OCTEON_OPCODE_MASK; 1078 1079 spin_lock_bh(&octeon_dev->dispatch.lock); 1080 1081 if (octeon_dev->dispatch.count == 0) { 1082 spin_unlock_bh(&octeon_dev->dispatch.lock); 1083 return NULL; 1084 } 1085 1086 if (!(octeon_dev->dispatch.dlist[idx].opcode)) { 1087 spin_unlock_bh(&octeon_dev->dispatch.lock); 1088 return NULL; 1089 } 1090 1091 if (octeon_dev->dispatch.dlist[idx].opcode == combined_opcode) { 1092 fn = octeon_dev->dispatch.dlist[idx].dispatch_fn; 1093 } else { 1094 list_for_each(dispatch, 1095 &octeon_dev->dispatch.dlist[idx].list) { 1096 if (((struct octeon_dispatch *)dispatch)->opcode == 1097 combined_opcode) { 1098 fn = ((struct octeon_dispatch *) 1099 dispatch)->dispatch_fn; 1100 break; 1101 } 1102 } 1103 } 1104 1105 spin_unlock_bh(&octeon_dev->dispatch.lock); 1106 return fn; 1107 } 1108 1109 /* octeon_register_dispatch_fn 1110 * Parameters: 1111 * octeon_id - id of the octeon device. 1112 * opcode - opcode for which driver should call the registered function 1113 * subcode - subcode for which driver should call the registered function 1114 * fn - The function to call when a packet with "opcode" arrives in 1115 * octeon output queues. 1116 * fn_arg - The argument to be passed when calling function "fn". 1117 * Description: 1118 * Registers a function and its argument to be called when a packet 1119 * arrives in Octeon output queues with "opcode". 1120 * Returns: 1121 * Success: 0 1122 * Failure: 1 1123 * Locks: 1124 * No locks are held. 1125 */ 1126 int 1127 octeon_register_dispatch_fn(struct octeon_device *oct, 1128 u16 opcode, 1129 u16 subcode, 1130 octeon_dispatch_fn_t fn, void *fn_arg) 1131 { 1132 u32 idx; 1133 octeon_dispatch_fn_t pfn; 1134 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode); 1135 1136 idx = combined_opcode & OCTEON_OPCODE_MASK; 1137 1138 spin_lock_bh(&oct->dispatch.lock); 1139 /* Add dispatch function to first level of lookup table */ 1140 if (oct->dispatch.dlist[idx].opcode == 0) { 1141 oct->dispatch.dlist[idx].opcode = combined_opcode; 1142 oct->dispatch.dlist[idx].dispatch_fn = fn; 1143 oct->dispatch.dlist[idx].arg = fn_arg; 1144 oct->dispatch.count++; 1145 spin_unlock_bh(&oct->dispatch.lock); 1146 return 0; 1147 } 1148 1149 spin_unlock_bh(&oct->dispatch.lock); 1150 1151 /* Check if there was a function already registered for this 1152 * opcode/subcode. 1153 */ 1154 pfn = octeon_get_dispatch(oct, opcode, subcode); 1155 if (!pfn) { 1156 struct octeon_dispatch *dispatch; 1157 1158 dev_dbg(&oct->pci_dev->dev, 1159 "Adding opcode to dispatch list linked list\n"); 1160 dispatch = (struct octeon_dispatch *) 1161 vmalloc(sizeof(struct octeon_dispatch)); 1162 if (!dispatch) { 1163 dev_err(&oct->pci_dev->dev, 1164 "No memory to add dispatch function\n"); 1165 return 1; 1166 } 1167 dispatch->opcode = combined_opcode; 1168 dispatch->dispatch_fn = fn; 1169 dispatch->arg = fn_arg; 1170 1171 /* Add dispatch function to linked list of fn ptrs 1172 * at the hashed index. 1173 */ 1174 spin_lock_bh(&oct->dispatch.lock); 1175 list_add(&dispatch->list, &oct->dispatch.dlist[idx].list); 1176 oct->dispatch.count++; 1177 spin_unlock_bh(&oct->dispatch.lock); 1178 1179 } else { 1180 if (pfn == fn && 1181 octeon_get_dispatch_arg(oct, opcode, subcode) == fn_arg) 1182 return 0; 1183 1184 dev_err(&oct->pci_dev->dev, 1185 "Found previously registered dispatch fn for opcode/subcode: %x/%x\n", 1186 opcode, subcode); 1187 return 1; 1188 } 1189 1190 return 0; 1191 } 1192 1193 int octeon_core_drv_init(struct octeon_recv_info *recv_info, void *buf) 1194 { 1195 u32 i; 1196 char app_name[16]; 1197 struct octeon_device *oct = (struct octeon_device *)buf; 1198 struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt; 1199 struct octeon_core_setup *cs = NULL; 1200 u32 num_nic_ports = 0; 1201 1202 if (OCTEON_CN6XXX(oct)) 1203 num_nic_ports = 1204 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn6xxx)); 1205 else if (OCTEON_CN23XX_PF(oct)) 1206 num_nic_ports = 1207 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn23xx_pf)); 1208 1209 if (atomic_read(&oct->status) >= OCT_DEV_RUNNING) { 1210 dev_err(&oct->pci_dev->dev, "Received CORE OK when device state is 0x%x\n", 1211 atomic_read(&oct->status)); 1212 goto core_drv_init_err; 1213 } 1214 1215 strncpy(app_name, 1216 get_oct_app_string( 1217 (u32)recv_pkt->rh.r_core_drv_init.app_mode), 1218 sizeof(app_name) - 1); 1219 oct->app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1220 if (recv_pkt->rh.r_core_drv_init.app_mode == CVM_DRV_NIC_APP) { 1221 oct->fw_info.max_nic_ports = 1222 (u32)recv_pkt->rh.r_core_drv_init.max_nic_ports; 1223 oct->fw_info.num_gmx_ports = 1224 (u32)recv_pkt->rh.r_core_drv_init.num_gmx_ports; 1225 } 1226 1227 if (oct->fw_info.max_nic_ports < num_nic_ports) { 1228 dev_err(&oct->pci_dev->dev, 1229 "Config has more ports than firmware allows (%d > %d).\n", 1230 num_nic_ports, oct->fw_info.max_nic_ports); 1231 goto core_drv_init_err; 1232 } 1233 oct->fw_info.app_cap_flags = recv_pkt->rh.r_core_drv_init.app_cap_flags; 1234 oct->fw_info.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1235 oct->pfvf_hsword.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1236 1237 oct->pfvf_hsword.pkind = recv_pkt->rh.r_core_drv_init.pkind; 1238 1239 for (i = 0; i < oct->num_iqs; i++) 1240 oct->instr_queue[i]->txpciq.s.pkind = oct->pfvf_hsword.pkind; 1241 1242 atomic_set(&oct->status, OCT_DEV_CORE_OK); 1243 1244 cs = &core_setup[oct->octeon_id]; 1245 1246 if (recv_pkt->buffer_size[0] != (sizeof(*cs) + OCT_DROQ_INFO_SIZE)) { 1247 dev_dbg(&oct->pci_dev->dev, "Core setup bytes expected %u found %d\n", 1248 (u32)sizeof(*cs), 1249 recv_pkt->buffer_size[0]); 1250 } 1251 1252 memcpy(cs, get_rbd( 1253 recv_pkt->buffer_ptr[0]) + OCT_DROQ_INFO_SIZE, sizeof(*cs)); 1254 1255 strncpy(oct->boardinfo.name, cs->boardname, OCT_BOARD_NAME); 1256 strncpy(oct->boardinfo.serial_number, cs->board_serial_number, 1257 OCT_SERIAL_LEN); 1258 1259 octeon_swap_8B_data((u64 *)cs, (sizeof(*cs) >> 3)); 1260 1261 oct->boardinfo.major = cs->board_rev_major; 1262 oct->boardinfo.minor = cs->board_rev_minor; 1263 1264 dev_info(&oct->pci_dev->dev, 1265 "Running %s (%llu Hz)\n", 1266 app_name, CVM_CAST64(cs->corefreq)); 1267 1268 core_drv_init_err: 1269 for (i = 0; i < recv_pkt->buffer_count; i++) 1270 recv_buffer_free(recv_pkt->buffer_ptr[i]); 1271 octeon_free_recv_info(recv_info); 1272 return 0; 1273 } 1274 1275 int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no) 1276 1277 { 1278 if (oct && (q_no < MAX_OCTEON_INSTR_QUEUES(oct)) && 1279 (oct->io_qmask.iq & BIT_ULL(q_no))) 1280 return oct->instr_queue[q_no]->max_count; 1281 1282 return -1; 1283 } 1284 1285 int octeon_get_rx_qsize(struct octeon_device *oct, u32 q_no) 1286 { 1287 if (oct && (q_no < MAX_OCTEON_OUTPUT_QUEUES(oct)) && 1288 (oct->io_qmask.oq & BIT_ULL(q_no))) 1289 return oct->droq[q_no]->max_count; 1290 return -1; 1291 } 1292 1293 /* Retruns the host firmware handshake OCTEON specific configuration */ 1294 struct octeon_config *octeon_get_conf(struct octeon_device *oct) 1295 { 1296 struct octeon_config *default_oct_conf = NULL; 1297 1298 /* check the OCTEON Device model & return the corresponding octeon 1299 * configuration 1300 */ 1301 1302 if (OCTEON_CN6XXX(oct)) { 1303 default_oct_conf = 1304 (struct octeon_config *)(CHIP_CONF(oct, cn6xxx)); 1305 } else if (OCTEON_CN23XX_PF(oct)) { 1306 default_oct_conf = (struct octeon_config *) 1307 (CHIP_CONF(oct, cn23xx_pf)); 1308 } else if (OCTEON_CN23XX_VF(oct)) { 1309 default_oct_conf = (struct octeon_config *) 1310 (CHIP_CONF(oct, cn23xx_vf)); 1311 } 1312 return default_oct_conf; 1313 } 1314 1315 /* scratch register address is same in all the OCT-II and CN70XX models */ 1316 #define CNXX_SLI_SCRATCH1 0x3C0 1317 1318 /** Get the octeon device pointer. 1319 * @param octeon_id - The id for which the octeon device pointer is required. 1320 * @return Success: Octeon device pointer. 1321 * @return Failure: NULL. 1322 */ 1323 struct octeon_device *lio_get_device(u32 octeon_id) 1324 { 1325 if (octeon_id >= MAX_OCTEON_DEVICES) 1326 return NULL; 1327 else 1328 return octeon_device[octeon_id]; 1329 } 1330 1331 u64 lio_pci_readq(struct octeon_device *oct, u64 addr) 1332 { 1333 u64 val64; 1334 unsigned long flags; 1335 u32 val32, addrhi; 1336 1337 spin_lock_irqsave(&oct->pci_win_lock, flags); 1338 1339 /* The windowed read happens when the LSB of the addr is written. 1340 * So write MSB first 1341 */ 1342 addrhi = (addr >> 32); 1343 if ((oct->chip_id == OCTEON_CN66XX) || 1344 (oct->chip_id == OCTEON_CN68XX) || 1345 (oct->chip_id == OCTEON_CN23XX_PF_VID)) 1346 addrhi |= 0x00060000; 1347 writel(addrhi, oct->reg_list.pci_win_rd_addr_hi); 1348 1349 /* Read back to preserve ordering of writes */ 1350 val32 = readl(oct->reg_list.pci_win_rd_addr_hi); 1351 1352 writel(addr & 0xffffffff, oct->reg_list.pci_win_rd_addr_lo); 1353 val32 = readl(oct->reg_list.pci_win_rd_addr_lo); 1354 1355 val64 = readq(oct->reg_list.pci_win_rd_data); 1356 1357 spin_unlock_irqrestore(&oct->pci_win_lock, flags); 1358 1359 return val64; 1360 } 1361 1362 void lio_pci_writeq(struct octeon_device *oct, 1363 u64 val, 1364 u64 addr) 1365 { 1366 u32 val32; 1367 unsigned long flags; 1368 1369 spin_lock_irqsave(&oct->pci_win_lock, flags); 1370 1371 writeq(addr, oct->reg_list.pci_win_wr_addr); 1372 1373 /* The write happens when the LSB is written. So write MSB first. */ 1374 writel(val >> 32, oct->reg_list.pci_win_wr_data_hi); 1375 /* Read the MSB to ensure ordering of writes. */ 1376 val32 = readl(oct->reg_list.pci_win_wr_data_hi); 1377 1378 writel(val & 0xffffffff, oct->reg_list.pci_win_wr_data_lo); 1379 1380 spin_unlock_irqrestore(&oct->pci_win_lock, flags); 1381 } 1382 1383 int octeon_mem_access_ok(struct octeon_device *oct) 1384 { 1385 u64 access_okay = 0; 1386 u64 lmc0_reset_ctl; 1387 1388 /* Check to make sure a DDR interface is enabled */ 1389 if (OCTEON_CN23XX_PF(oct)) { 1390 lmc0_reset_ctl = lio_pci_readq(oct, CN23XX_LMC0_RESET_CTL); 1391 access_okay = 1392 (lmc0_reset_ctl & CN23XX_LMC0_RESET_CTL_DDR3RST_MASK); 1393 } else { 1394 lmc0_reset_ctl = lio_pci_readq(oct, CN6XXX_LMC0_RESET_CTL); 1395 access_okay = 1396 (lmc0_reset_ctl & CN6XXX_LMC0_RESET_CTL_DDR3RST_MASK); 1397 } 1398 1399 return access_okay ? 0 : 1; 1400 } 1401 1402 int octeon_wait_for_ddr_init(struct octeon_device *oct, u32 *timeout) 1403 { 1404 int ret = 1; 1405 u32 ms; 1406 1407 if (!timeout) 1408 return ret; 1409 1410 for (ms = 0; (ret != 0) && ((*timeout == 0) || (ms <= *timeout)); 1411 ms += HZ / 10) { 1412 ret = octeon_mem_access_ok(oct); 1413 1414 /* wait 100 ms */ 1415 if (ret) 1416 schedule_timeout_uninterruptible(HZ / 10); 1417 } 1418 1419 return ret; 1420 } 1421 1422 /** Get the octeon id assigned to the octeon device passed as argument. 1423 * This function is exported to other modules. 1424 * @param dev - octeon device pointer passed as a void *. 1425 * @return octeon device id 1426 */ 1427 int lio_get_device_id(void *dev) 1428 { 1429 struct octeon_device *octeon_dev = (struct octeon_device *)dev; 1430 u32 i; 1431 1432 for (i = 0; i < MAX_OCTEON_DEVICES; i++) 1433 if (octeon_device[i] == octeon_dev) 1434 return octeon_dev->octeon_id; 1435 return -1; 1436 } 1437 1438 void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq) 1439 { 1440 u64 instr_cnt; 1441 u32 pkts_pend; 1442 struct octeon_device *oct = NULL; 1443 1444 /* the whole thing needs to be atomic, ideally */ 1445 if (droq) { 1446 pkts_pend = (u32)atomic_read(&droq->pkts_pending); 1447 spin_lock_bh(&droq->lock); 1448 writel(droq->pkt_count - pkts_pend, droq->pkts_sent_reg); 1449 droq->pkt_count = pkts_pend; 1450 /* this write needs to be flushed before we release the lock */ 1451 mmiowb(); 1452 spin_unlock_bh(&droq->lock); 1453 oct = droq->oct_dev; 1454 } 1455 if (iq) { 1456 spin_lock_bh(&iq->lock); 1457 writel(iq->pkt_in_done, iq->inst_cnt_reg); 1458 iq->pkt_in_done = 0; 1459 /* this write needs to be flushed before we release the lock */ 1460 mmiowb(); 1461 spin_unlock_bh(&iq->lock); 1462 oct = iq->oct_dev; 1463 } 1464 /*write resend. Writing RESEND in SLI_PKTX_CNTS should be enough 1465 *to trigger tx interrupts as well, if they are pending. 1466 */ 1467 if (oct && (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))) { 1468 if (droq) 1469 writeq(CN23XX_INTR_RESEND, droq->pkts_sent_reg); 1470 /*we race with firmrware here. read and write the IN_DONE_CNTS*/ 1471 else if (iq) { 1472 instr_cnt = readq(iq->inst_cnt_reg); 1473 writeq(((instr_cnt & 0xFFFFFFFF00000000ULL) | 1474 CN23XX_INTR_RESEND), 1475 iq->inst_cnt_reg); 1476 } 1477 } 1478 } 1479