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 DEFINE_SPINLOCK(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 } 567 568 static void *__retrieve_octeon_config_info(struct octeon_device *oct, 569 u16 card_type) 570 { 571 u32 oct_id = oct->octeon_id; 572 void *ret = NULL; 573 574 switch (oct_conf_info[oct_id].conf_type) { 575 case OCTEON_CONFIG_TYPE_DEFAULT: 576 if (oct->chip_id == OCTEON_CN66XX) { 577 ret = &default_cn66xx_conf; 578 } else if ((oct->chip_id == OCTEON_CN68XX) && 579 (card_type == LIO_210NV)) { 580 ret = &default_cn68xx_210nv_conf; 581 } else if ((oct->chip_id == OCTEON_CN68XX) && 582 (card_type == LIO_410NV)) { 583 ret = &default_cn68xx_conf; 584 } else if (oct->chip_id == OCTEON_CN23XX_PF_VID) { 585 ret = &default_cn23xx_conf; 586 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) { 587 ret = &default_cn23xx_conf; 588 } 589 break; 590 default: 591 break; 592 } 593 return ret; 594 } 595 596 static int __verify_octeon_config_info(struct octeon_device *oct, void *conf) 597 { 598 switch (oct->chip_id) { 599 case OCTEON_CN66XX: 600 case OCTEON_CN68XX: 601 return lio_validate_cn6xxx_config_info(oct, conf); 602 case OCTEON_CN23XX_PF_VID: 603 case OCTEON_CN23XX_VF_VID: 604 return 0; 605 default: 606 break; 607 } 608 609 return 1; 610 } 611 612 void *oct_get_config_info(struct octeon_device *oct, u16 card_type) 613 { 614 void *conf = NULL; 615 616 conf = __retrieve_octeon_config_info(oct, card_type); 617 if (!conf) 618 return NULL; 619 620 if (__verify_octeon_config_info(oct, conf)) { 621 dev_err(&oct->pci_dev->dev, "Configuration verification failed\n"); 622 return NULL; 623 } 624 625 return conf; 626 } 627 628 char *lio_get_state_string(atomic_t *state_ptr) 629 { 630 s32 istate = (s32)atomic_read(state_ptr); 631 632 if (istate > OCT_DEV_STATES || istate < 0) 633 return oct_dev_state_str[OCT_DEV_STATE_INVALID]; 634 return oct_dev_state_str[istate]; 635 } 636 637 static char *get_oct_app_string(u32 app_mode) 638 { 639 if (app_mode <= CVM_DRV_APP_END) 640 return oct_dev_app_str[app_mode - CVM_DRV_APP_START]; 641 return oct_dev_app_str[CVM_DRV_INVALID_APP - CVM_DRV_APP_START]; 642 } 643 644 void octeon_free_device_mem(struct octeon_device *oct) 645 { 646 int i; 647 648 for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) { 649 if (oct->io_qmask.oq & BIT_ULL(i)) 650 vfree(oct->droq[i]); 651 } 652 653 for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) { 654 if (oct->io_qmask.iq & BIT_ULL(i)) 655 vfree(oct->instr_queue[i]); 656 } 657 658 i = oct->octeon_id; 659 vfree(oct); 660 661 octeon_device[i] = NULL; 662 octeon_device_count--; 663 } 664 665 static struct octeon_device *octeon_allocate_device_mem(u32 pci_id, 666 u32 priv_size) 667 { 668 struct octeon_device *oct; 669 u8 *buf = NULL; 670 u32 octdevsize = 0, configsize = 0, size; 671 672 switch (pci_id) { 673 case OCTEON_CN68XX: 674 case OCTEON_CN66XX: 675 configsize = sizeof(struct octeon_cn6xxx); 676 break; 677 678 case OCTEON_CN23XX_PF_VID: 679 configsize = sizeof(struct octeon_cn23xx_pf); 680 break; 681 case OCTEON_CN23XX_VF_VID: 682 configsize = sizeof(struct octeon_cn23xx_vf); 683 break; 684 default: 685 pr_err("%s: Unknown PCI Device: 0x%x\n", 686 __func__, 687 pci_id); 688 return NULL; 689 } 690 691 if (configsize & 0x7) 692 configsize += (8 - (configsize & 0x7)); 693 694 octdevsize = sizeof(struct octeon_device); 695 if (octdevsize & 0x7) 696 octdevsize += (8 - (octdevsize & 0x7)); 697 698 if (priv_size & 0x7) 699 priv_size += (8 - (priv_size & 0x7)); 700 701 size = octdevsize + priv_size + configsize + 702 (sizeof(struct octeon_dispatch) * DISPATCH_LIST_SIZE); 703 704 buf = vzalloc(size); 705 if (!buf) 706 return NULL; 707 708 oct = (struct octeon_device *)buf; 709 oct->priv = (void *)(buf + octdevsize); 710 oct->chip = (void *)(buf + octdevsize + priv_size); 711 oct->dispatch.dlist = (struct octeon_dispatch *) 712 (buf + octdevsize + priv_size + configsize); 713 714 return oct; 715 } 716 717 struct octeon_device *octeon_allocate_device(u32 pci_id, 718 u32 priv_size) 719 { 720 u32 oct_idx = 0; 721 struct octeon_device *oct = NULL; 722 723 spin_lock(&octeon_devices_lock); 724 725 for (oct_idx = 0; oct_idx < MAX_OCTEON_DEVICES; oct_idx++) 726 if (!octeon_device[oct_idx]) 727 break; 728 729 if (oct_idx < MAX_OCTEON_DEVICES) { 730 oct = octeon_allocate_device_mem(pci_id, priv_size); 731 if (oct) { 732 octeon_device_count++; 733 octeon_device[oct_idx] = oct; 734 } 735 } 736 737 spin_unlock(&octeon_devices_lock); 738 if (!oct) 739 return NULL; 740 741 spin_lock_init(&oct->pci_win_lock); 742 spin_lock_init(&oct->mem_access_lock); 743 744 oct->octeon_id = oct_idx; 745 snprintf(oct->device_name, sizeof(oct->device_name), 746 "LiquidIO%d", (oct->octeon_id)); 747 748 return oct; 749 } 750 751 /** Register a device's bus location at initialization time. 752 * @param octeon_dev - pointer to the octeon device structure. 753 * @param bus - PCIe bus # 754 * @param dev - PCIe device # 755 * @param func - PCIe function # 756 * @param is_pf - TRUE for PF, FALSE for VF 757 * @return reference count of device's adapter 758 */ 759 int octeon_register_device(struct octeon_device *oct, 760 int bus, int dev, int func, int is_pf) 761 { 762 int idx, refcount; 763 764 oct->loc.bus = bus; 765 oct->loc.dev = dev; 766 oct->loc.func = func; 767 768 oct->adapter_refcount = &adapter_refcounts[oct->octeon_id]; 769 atomic_set(oct->adapter_refcount, 0); 770 771 /* Like the reference count, the f/w state is shared 'per-adapter' */ 772 oct->adapter_fw_state = &adapter_fw_states[oct->octeon_id]; 773 atomic_set(oct->adapter_fw_state, FW_NEEDS_TO_BE_LOADED); 774 775 spin_lock(&octeon_devices_lock); 776 for (idx = (int)oct->octeon_id - 1; idx >= 0; idx--) { 777 if (!octeon_device[idx]) { 778 dev_err(&oct->pci_dev->dev, 779 "%s: Internal driver error, missing dev", 780 __func__); 781 spin_unlock(&octeon_devices_lock); 782 atomic_inc(oct->adapter_refcount); 783 return 1; /* here, refcount is guaranteed to be 1 */ 784 } 785 /* If another device is at same bus/dev, use its refcounter 786 * (and f/w state variable). 787 */ 788 if ((octeon_device[idx]->loc.bus == bus) && 789 (octeon_device[idx]->loc.dev == dev)) { 790 oct->adapter_refcount = 791 octeon_device[idx]->adapter_refcount; 792 oct->adapter_fw_state = 793 octeon_device[idx]->adapter_fw_state; 794 break; 795 } 796 } 797 spin_unlock(&octeon_devices_lock); 798 799 atomic_inc(oct->adapter_refcount); 800 refcount = atomic_read(oct->adapter_refcount); 801 802 dev_dbg(&oct->pci_dev->dev, "%s: %02x:%02x:%d refcount %u", __func__, 803 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount); 804 805 return refcount; 806 } 807 808 /** Deregister a device at de-initialization time. 809 * @param octeon_dev - pointer to the octeon device structure. 810 * @return reference count of device's adapter 811 */ 812 int octeon_deregister_device(struct octeon_device *oct) 813 { 814 int refcount; 815 816 atomic_dec(oct->adapter_refcount); 817 refcount = atomic_read(oct->adapter_refcount); 818 819 dev_dbg(&oct->pci_dev->dev, "%s: %04d:%02d:%d refcount %u", __func__, 820 oct->loc.bus, oct->loc.dev, oct->loc.func, refcount); 821 822 return refcount; 823 } 824 825 int 826 octeon_allocate_ioq_vector(struct octeon_device *oct, u32 num_ioqs) 827 { 828 struct octeon_ioq_vector *ioq_vector; 829 int cpu_num; 830 int size; 831 int i; 832 833 size = sizeof(struct octeon_ioq_vector) * num_ioqs; 834 835 oct->ioq_vector = vzalloc(size); 836 if (!oct->ioq_vector) 837 return -1; 838 for (i = 0; i < num_ioqs; i++) { 839 ioq_vector = &oct->ioq_vector[i]; 840 ioq_vector->oct_dev = oct; 841 ioq_vector->iq_index = i; 842 ioq_vector->droq_index = i; 843 ioq_vector->mbox = oct->mbox[i]; 844 845 cpu_num = i % num_online_cpus(); 846 cpumask_set_cpu(cpu_num, &ioq_vector->affinity_mask); 847 848 if (oct->chip_id == OCTEON_CN23XX_PF_VID) 849 ioq_vector->ioq_num = i + oct->sriov_info.pf_srn; 850 else 851 ioq_vector->ioq_num = i; 852 } 853 854 return 0; 855 } 856 857 void 858 octeon_free_ioq_vector(struct octeon_device *oct) 859 { 860 vfree(oct->ioq_vector); 861 } 862 863 /* this function is only for setting up the first queue */ 864 int octeon_setup_instr_queues(struct octeon_device *oct) 865 { 866 u32 num_descs = 0; 867 u32 iq_no = 0; 868 union oct_txpciq txpciq; 869 int numa_node = dev_to_node(&oct->pci_dev->dev); 870 871 if (OCTEON_CN6XXX(oct)) 872 num_descs = 873 CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn6xxx)); 874 else if (OCTEON_CN23XX_PF(oct)) 875 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_pf)); 876 else if (OCTEON_CN23XX_VF(oct)) 877 num_descs = CFG_GET_NUM_DEF_TX_DESCS(CHIP_CONF(oct, cn23xx_vf)); 878 879 oct->num_iqs = 0; 880 881 oct->instr_queue[0] = vzalloc_node(sizeof(*oct->instr_queue[0]), 882 numa_node); 883 if (!oct->instr_queue[0]) 884 oct->instr_queue[0] = 885 vzalloc(sizeof(struct octeon_instr_queue)); 886 if (!oct->instr_queue[0]) 887 return 1; 888 memset(oct->instr_queue[0], 0, sizeof(struct octeon_instr_queue)); 889 oct->instr_queue[0]->q_index = 0; 890 oct->instr_queue[0]->app_ctx = (void *)(size_t)0; 891 oct->instr_queue[0]->ifidx = 0; 892 txpciq.u64 = 0; 893 txpciq.s.q_no = iq_no; 894 txpciq.s.pkind = oct->pfvf_hsword.pkind; 895 txpciq.s.use_qpg = 0; 896 txpciq.s.qpg = 0; 897 if (octeon_init_instr_queue(oct, txpciq, num_descs)) { 898 /* prevent memory leak */ 899 vfree(oct->instr_queue[0]); 900 oct->instr_queue[0] = NULL; 901 return 1; 902 } 903 904 oct->num_iqs++; 905 return 0; 906 } 907 908 int octeon_setup_output_queues(struct octeon_device *oct) 909 { 910 u32 num_descs = 0; 911 u32 desc_size = 0; 912 u32 oq_no = 0; 913 int numa_node = dev_to_node(&oct->pci_dev->dev); 914 915 if (OCTEON_CN6XXX(oct)) { 916 num_descs = 917 CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn6xxx)); 918 desc_size = 919 CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn6xxx)); 920 } else if (OCTEON_CN23XX_PF(oct)) { 921 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_pf)); 922 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_pf)); 923 } else if (OCTEON_CN23XX_VF(oct)) { 924 num_descs = CFG_GET_NUM_DEF_RX_DESCS(CHIP_CONF(oct, cn23xx_vf)); 925 desc_size = CFG_GET_DEF_RX_BUF_SIZE(CHIP_CONF(oct, cn23xx_vf)); 926 } 927 oct->num_oqs = 0; 928 oct->droq[0] = vzalloc_node(sizeof(*oct->droq[0]), numa_node); 929 if (!oct->droq[0]) 930 oct->droq[0] = vzalloc(sizeof(*oct->droq[0])); 931 if (!oct->droq[0]) 932 return 1; 933 934 if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) { 935 vfree(oct->droq[oq_no]); 936 oct->droq[oq_no] = NULL; 937 return 1; 938 } 939 oct->num_oqs++; 940 941 return 0; 942 } 943 944 int octeon_set_io_queues_off(struct octeon_device *oct) 945 { 946 int loop = BUSY_READING_REG_VF_LOOP_COUNT; 947 948 if (OCTEON_CN6XXX(oct)) { 949 octeon_write_csr(oct, CN6XXX_SLI_PKT_INSTR_ENB, 0); 950 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, 0); 951 } else if (oct->chip_id == OCTEON_CN23XX_VF_VID) { 952 u32 q_no; 953 954 /* IOQs will already be in reset. 955 * If RST bit is set, wait for quiet bit to be set. 956 * Once quiet bit is set, clear the RST bit. 957 */ 958 for (q_no = 0; q_no < oct->sriov_info.rings_per_vf; q_no++) { 959 u64 reg_val = octeon_read_csr64( 960 oct, CN23XX_VF_SLI_IQ_PKT_CONTROL64(q_no)); 961 962 while ((reg_val & CN23XX_PKT_INPUT_CTL_RST) && 963 !(reg_val & CN23XX_PKT_INPUT_CTL_QUIET) && 964 loop) { 965 reg_val = octeon_read_csr64( 966 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no)); 967 loop--; 968 } 969 if (!loop) { 970 dev_err(&oct->pci_dev->dev, 971 "clearing the reset reg failed or setting the quiet reg failed for qno: %u\n", 972 q_no); 973 return -1; 974 } 975 976 reg_val = reg_val & ~CN23XX_PKT_INPUT_CTL_RST; 977 octeon_write_csr64(oct, 978 CN23XX_SLI_IQ_PKT_CONTROL64(q_no), 979 reg_val); 980 981 reg_val = octeon_read_csr64( 982 oct, CN23XX_SLI_IQ_PKT_CONTROL64(q_no)); 983 if (reg_val & CN23XX_PKT_INPUT_CTL_RST) { 984 dev_err(&oct->pci_dev->dev, 985 "unable to reset qno %u\n", q_no); 986 return -1; 987 } 988 } 989 } 990 return 0; 991 } 992 993 void octeon_set_droq_pkt_op(struct octeon_device *oct, 994 u32 q_no, 995 u32 enable) 996 { 997 u32 reg_val = 0; 998 999 /* Disable the i/p and o/p queues for this Octeon. */ 1000 if (OCTEON_CN6XXX(oct)) { 1001 reg_val = octeon_read_csr(oct, CN6XXX_SLI_PKT_OUT_ENB); 1002 1003 if (enable) 1004 reg_val = reg_val | (1 << q_no); 1005 else 1006 reg_val = reg_val & (~(1 << q_no)); 1007 1008 octeon_write_csr(oct, CN6XXX_SLI_PKT_OUT_ENB, reg_val); 1009 } 1010 } 1011 1012 int octeon_init_dispatch_list(struct octeon_device *oct) 1013 { 1014 u32 i; 1015 1016 oct->dispatch.count = 0; 1017 1018 for (i = 0; i < DISPATCH_LIST_SIZE; i++) { 1019 oct->dispatch.dlist[i].opcode = 0; 1020 INIT_LIST_HEAD(&oct->dispatch.dlist[i].list); 1021 } 1022 1023 for (i = 0; i <= REQTYPE_LAST; i++) 1024 octeon_register_reqtype_free_fn(oct, i, NULL); 1025 1026 spin_lock_init(&oct->dispatch.lock); 1027 1028 return 0; 1029 } 1030 1031 void octeon_delete_dispatch_list(struct octeon_device *oct) 1032 { 1033 u32 i; 1034 struct list_head freelist, *temp, *tmp2; 1035 1036 INIT_LIST_HEAD(&freelist); 1037 1038 spin_lock_bh(&oct->dispatch.lock); 1039 1040 for (i = 0; i < DISPATCH_LIST_SIZE; i++) { 1041 struct list_head *dispatch; 1042 1043 dispatch = &oct->dispatch.dlist[i].list; 1044 while (dispatch->next != dispatch) { 1045 temp = dispatch->next; 1046 list_move_tail(temp, &freelist); 1047 } 1048 1049 oct->dispatch.dlist[i].opcode = 0; 1050 } 1051 1052 oct->dispatch.count = 0; 1053 1054 spin_unlock_bh(&oct->dispatch.lock); 1055 1056 list_for_each_safe(temp, tmp2, &freelist) { 1057 list_del(temp); 1058 kfree(temp); 1059 } 1060 } 1061 1062 octeon_dispatch_fn_t 1063 octeon_get_dispatch(struct octeon_device *octeon_dev, u16 opcode, 1064 u16 subcode) 1065 { 1066 u32 idx; 1067 struct list_head *dispatch; 1068 octeon_dispatch_fn_t fn = NULL; 1069 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode); 1070 1071 idx = combined_opcode & OCTEON_OPCODE_MASK; 1072 1073 spin_lock_bh(&octeon_dev->dispatch.lock); 1074 1075 if (octeon_dev->dispatch.count == 0) { 1076 spin_unlock_bh(&octeon_dev->dispatch.lock); 1077 return NULL; 1078 } 1079 1080 if (!(octeon_dev->dispatch.dlist[idx].opcode)) { 1081 spin_unlock_bh(&octeon_dev->dispatch.lock); 1082 return NULL; 1083 } 1084 1085 if (octeon_dev->dispatch.dlist[idx].opcode == combined_opcode) { 1086 fn = octeon_dev->dispatch.dlist[idx].dispatch_fn; 1087 } else { 1088 list_for_each(dispatch, 1089 &octeon_dev->dispatch.dlist[idx].list) { 1090 if (((struct octeon_dispatch *)dispatch)->opcode == 1091 combined_opcode) { 1092 fn = ((struct octeon_dispatch *) 1093 dispatch)->dispatch_fn; 1094 break; 1095 } 1096 } 1097 } 1098 1099 spin_unlock_bh(&octeon_dev->dispatch.lock); 1100 return fn; 1101 } 1102 1103 /* octeon_register_dispatch_fn 1104 * Parameters: 1105 * octeon_id - id of the octeon device. 1106 * opcode - opcode for which driver should call the registered function 1107 * subcode - subcode for which driver should call the registered function 1108 * fn - The function to call when a packet with "opcode" arrives in 1109 * octeon output queues. 1110 * fn_arg - The argument to be passed when calling function "fn". 1111 * Description: 1112 * Registers a function and its argument to be called when a packet 1113 * arrives in Octeon output queues with "opcode". 1114 * Returns: 1115 * Success: 0 1116 * Failure: 1 1117 * Locks: 1118 * No locks are held. 1119 */ 1120 int 1121 octeon_register_dispatch_fn(struct octeon_device *oct, 1122 u16 opcode, 1123 u16 subcode, 1124 octeon_dispatch_fn_t fn, void *fn_arg) 1125 { 1126 u32 idx; 1127 octeon_dispatch_fn_t pfn; 1128 u16 combined_opcode = OPCODE_SUBCODE(opcode, subcode); 1129 1130 idx = combined_opcode & OCTEON_OPCODE_MASK; 1131 1132 spin_lock_bh(&oct->dispatch.lock); 1133 /* Add dispatch function to first level of lookup table */ 1134 if (oct->dispatch.dlist[idx].opcode == 0) { 1135 oct->dispatch.dlist[idx].opcode = combined_opcode; 1136 oct->dispatch.dlist[idx].dispatch_fn = fn; 1137 oct->dispatch.dlist[idx].arg = fn_arg; 1138 oct->dispatch.count++; 1139 spin_unlock_bh(&oct->dispatch.lock); 1140 return 0; 1141 } 1142 1143 spin_unlock_bh(&oct->dispatch.lock); 1144 1145 /* Check if there was a function already registered for this 1146 * opcode/subcode. 1147 */ 1148 pfn = octeon_get_dispatch(oct, opcode, subcode); 1149 if (!pfn) { 1150 struct octeon_dispatch *dispatch; 1151 1152 dev_dbg(&oct->pci_dev->dev, 1153 "Adding opcode to dispatch list linked list\n"); 1154 dispatch = kmalloc(sizeof(*dispatch), GFP_KERNEL); 1155 if (!dispatch) 1156 return 1; 1157 1158 dispatch->opcode = combined_opcode; 1159 dispatch->dispatch_fn = fn; 1160 dispatch->arg = fn_arg; 1161 1162 /* Add dispatch function to linked list of fn ptrs 1163 * at the hashed index. 1164 */ 1165 spin_lock_bh(&oct->dispatch.lock); 1166 list_add(&dispatch->list, &oct->dispatch.dlist[idx].list); 1167 oct->dispatch.count++; 1168 spin_unlock_bh(&oct->dispatch.lock); 1169 1170 } else { 1171 if (pfn == fn && 1172 octeon_get_dispatch_arg(oct, opcode, subcode) == fn_arg) 1173 return 0; 1174 1175 dev_err(&oct->pci_dev->dev, 1176 "Found previously registered dispatch fn for opcode/subcode: %x/%x\n", 1177 opcode, subcode); 1178 return 1; 1179 } 1180 1181 return 0; 1182 } 1183 1184 int octeon_core_drv_init(struct octeon_recv_info *recv_info, void *buf) 1185 { 1186 u32 i; 1187 char app_name[16]; 1188 struct octeon_device *oct = (struct octeon_device *)buf; 1189 struct octeon_recv_pkt *recv_pkt = recv_info->recv_pkt; 1190 struct octeon_core_setup *cs = NULL; 1191 u32 num_nic_ports = 0; 1192 1193 if (OCTEON_CN6XXX(oct)) 1194 num_nic_ports = 1195 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn6xxx)); 1196 else if (OCTEON_CN23XX_PF(oct)) 1197 num_nic_ports = 1198 CFG_GET_NUM_NIC_PORTS(CHIP_CONF(oct, cn23xx_pf)); 1199 1200 if (atomic_read(&oct->status) >= OCT_DEV_RUNNING) { 1201 dev_err(&oct->pci_dev->dev, "Received CORE OK when device state is 0x%x\n", 1202 atomic_read(&oct->status)); 1203 goto core_drv_init_err; 1204 } 1205 1206 strncpy(app_name, 1207 get_oct_app_string( 1208 (u32)recv_pkt->rh.r_core_drv_init.app_mode), 1209 sizeof(app_name) - 1); 1210 oct->app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1211 if (recv_pkt->rh.r_core_drv_init.app_mode == CVM_DRV_NIC_APP) { 1212 oct->fw_info.max_nic_ports = 1213 (u32)recv_pkt->rh.r_core_drv_init.max_nic_ports; 1214 oct->fw_info.num_gmx_ports = 1215 (u32)recv_pkt->rh.r_core_drv_init.num_gmx_ports; 1216 } 1217 1218 if (oct->fw_info.max_nic_ports < num_nic_ports) { 1219 dev_err(&oct->pci_dev->dev, 1220 "Config has more ports than firmware allows (%d > %d).\n", 1221 num_nic_ports, oct->fw_info.max_nic_ports); 1222 goto core_drv_init_err; 1223 } 1224 oct->fw_info.app_cap_flags = recv_pkt->rh.r_core_drv_init.app_cap_flags; 1225 oct->fw_info.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1226 oct->pfvf_hsword.app_mode = (u32)recv_pkt->rh.r_core_drv_init.app_mode; 1227 1228 oct->pfvf_hsword.pkind = recv_pkt->rh.r_core_drv_init.pkind; 1229 1230 for (i = 0; i < oct->num_iqs; i++) 1231 oct->instr_queue[i]->txpciq.s.pkind = oct->pfvf_hsword.pkind; 1232 1233 atomic_set(&oct->status, OCT_DEV_CORE_OK); 1234 1235 cs = &core_setup[oct->octeon_id]; 1236 1237 if (recv_pkt->buffer_size[0] != (sizeof(*cs) + OCT_DROQ_INFO_SIZE)) { 1238 dev_dbg(&oct->pci_dev->dev, "Core setup bytes expected %u found %d\n", 1239 (u32)sizeof(*cs), 1240 recv_pkt->buffer_size[0]); 1241 } 1242 1243 memcpy(cs, get_rbd( 1244 recv_pkt->buffer_ptr[0]) + OCT_DROQ_INFO_SIZE, sizeof(*cs)); 1245 1246 strncpy(oct->boardinfo.name, cs->boardname, OCT_BOARD_NAME); 1247 strncpy(oct->boardinfo.serial_number, cs->board_serial_number, 1248 OCT_SERIAL_LEN); 1249 1250 octeon_swap_8B_data((u64 *)cs, (sizeof(*cs) >> 3)); 1251 1252 oct->boardinfo.major = cs->board_rev_major; 1253 oct->boardinfo.minor = cs->board_rev_minor; 1254 1255 dev_info(&oct->pci_dev->dev, 1256 "Running %s (%llu Hz)\n", 1257 app_name, CVM_CAST64(cs->corefreq)); 1258 1259 core_drv_init_err: 1260 for (i = 0; i < recv_pkt->buffer_count; i++) 1261 recv_buffer_free(recv_pkt->buffer_ptr[i]); 1262 octeon_free_recv_info(recv_info); 1263 return 0; 1264 } 1265 1266 int octeon_get_tx_qsize(struct octeon_device *oct, u32 q_no) 1267 1268 { 1269 if (oct && (q_no < MAX_OCTEON_INSTR_QUEUES(oct)) && 1270 (oct->io_qmask.iq & BIT_ULL(q_no))) 1271 return oct->instr_queue[q_no]->max_count; 1272 1273 return -1; 1274 } 1275 1276 int octeon_get_rx_qsize(struct octeon_device *oct, u32 q_no) 1277 { 1278 if (oct && (q_no < MAX_OCTEON_OUTPUT_QUEUES(oct)) && 1279 (oct->io_qmask.oq & BIT_ULL(q_no))) 1280 return oct->droq[q_no]->max_count; 1281 return -1; 1282 } 1283 1284 /* Retruns the host firmware handshake OCTEON specific configuration */ 1285 struct octeon_config *octeon_get_conf(struct octeon_device *oct) 1286 { 1287 struct octeon_config *default_oct_conf = NULL; 1288 1289 /* check the OCTEON Device model & return the corresponding octeon 1290 * configuration 1291 */ 1292 1293 if (OCTEON_CN6XXX(oct)) { 1294 default_oct_conf = 1295 (struct octeon_config *)(CHIP_CONF(oct, cn6xxx)); 1296 } else if (OCTEON_CN23XX_PF(oct)) { 1297 default_oct_conf = (struct octeon_config *) 1298 (CHIP_CONF(oct, cn23xx_pf)); 1299 } else if (OCTEON_CN23XX_VF(oct)) { 1300 default_oct_conf = (struct octeon_config *) 1301 (CHIP_CONF(oct, cn23xx_vf)); 1302 } 1303 return default_oct_conf; 1304 } 1305 1306 /* scratch register address is same in all the OCT-II and CN70XX models */ 1307 #define CNXX_SLI_SCRATCH1 0x3C0 1308 1309 /* Get the octeon device pointer. 1310 * @param octeon_id - The id for which the octeon device pointer is required. 1311 * @return Success: Octeon device pointer. 1312 * @return Failure: NULL. 1313 */ 1314 struct octeon_device *lio_get_device(u32 octeon_id) 1315 { 1316 if (octeon_id >= MAX_OCTEON_DEVICES) 1317 return NULL; 1318 else 1319 return octeon_device[octeon_id]; 1320 } 1321 1322 u64 lio_pci_readq(struct octeon_device *oct, u64 addr) 1323 { 1324 u64 val64; 1325 unsigned long flags; 1326 u32 addrhi; 1327 1328 spin_lock_irqsave(&oct->pci_win_lock, flags); 1329 1330 /* The windowed read happens when the LSB of the addr is written. 1331 * So write MSB first 1332 */ 1333 addrhi = (addr >> 32); 1334 if ((oct->chip_id == OCTEON_CN66XX) || 1335 (oct->chip_id == OCTEON_CN68XX) || 1336 (oct->chip_id == OCTEON_CN23XX_PF_VID)) 1337 addrhi |= 0x00060000; 1338 writel(addrhi, oct->reg_list.pci_win_rd_addr_hi); 1339 1340 /* Read back to preserve ordering of writes */ 1341 readl(oct->reg_list.pci_win_rd_addr_hi); 1342 1343 writel(addr & 0xffffffff, oct->reg_list.pci_win_rd_addr_lo); 1344 readl(oct->reg_list.pci_win_rd_addr_lo); 1345 1346 val64 = readq(oct->reg_list.pci_win_rd_data); 1347 1348 spin_unlock_irqrestore(&oct->pci_win_lock, flags); 1349 1350 return val64; 1351 } 1352 1353 void lio_pci_writeq(struct octeon_device *oct, 1354 u64 val, 1355 u64 addr) 1356 { 1357 unsigned long flags; 1358 1359 spin_lock_irqsave(&oct->pci_win_lock, flags); 1360 1361 writeq(addr, oct->reg_list.pci_win_wr_addr); 1362 1363 /* The write happens when the LSB is written. So write MSB first. */ 1364 writel(val >> 32, oct->reg_list.pci_win_wr_data_hi); 1365 /* Read the MSB to ensure ordering of writes. */ 1366 readl(oct->reg_list.pci_win_wr_data_hi); 1367 1368 writel(val & 0xffffffff, oct->reg_list.pci_win_wr_data_lo); 1369 1370 spin_unlock_irqrestore(&oct->pci_win_lock, flags); 1371 } 1372 1373 int octeon_mem_access_ok(struct octeon_device *oct) 1374 { 1375 u64 access_okay = 0; 1376 u64 lmc0_reset_ctl; 1377 1378 /* Check to make sure a DDR interface is enabled */ 1379 if (OCTEON_CN23XX_PF(oct)) { 1380 lmc0_reset_ctl = lio_pci_readq(oct, CN23XX_LMC0_RESET_CTL); 1381 access_okay = 1382 (lmc0_reset_ctl & CN23XX_LMC0_RESET_CTL_DDR3RST_MASK); 1383 } else { 1384 lmc0_reset_ctl = lio_pci_readq(oct, CN6XXX_LMC0_RESET_CTL); 1385 access_okay = 1386 (lmc0_reset_ctl & CN6XXX_LMC0_RESET_CTL_DDR3RST_MASK); 1387 } 1388 1389 return access_okay ? 0 : 1; 1390 } 1391 1392 int octeon_wait_for_ddr_init(struct octeon_device *oct, u32 *timeout) 1393 { 1394 int ret = 1; 1395 u32 ms; 1396 1397 if (!timeout) 1398 return ret; 1399 1400 for (ms = 0; (ret != 0) && ((*timeout == 0) || (ms <= *timeout)); 1401 ms += HZ / 10) { 1402 ret = octeon_mem_access_ok(oct); 1403 1404 /* wait 100 ms */ 1405 if (ret) 1406 schedule_timeout_uninterruptible(HZ / 10); 1407 } 1408 1409 return ret; 1410 } 1411 1412 /* Get the octeon id assigned to the octeon device passed as argument. 1413 * This function is exported to other modules. 1414 * @param dev - octeon device pointer passed as a void *. 1415 * @return octeon device id 1416 */ 1417 int lio_get_device_id(void *dev) 1418 { 1419 struct octeon_device *octeon_dev = (struct octeon_device *)dev; 1420 u32 i; 1421 1422 for (i = 0; i < MAX_OCTEON_DEVICES; i++) 1423 if (octeon_device[i] == octeon_dev) 1424 return octeon_dev->octeon_id; 1425 return -1; 1426 } 1427 1428 void lio_enable_irq(struct octeon_droq *droq, struct octeon_instr_queue *iq) 1429 { 1430 u64 instr_cnt; 1431 u32 pkts_pend; 1432 struct octeon_device *oct = NULL; 1433 1434 /* the whole thing needs to be atomic, ideally */ 1435 if (droq) { 1436 pkts_pend = (u32)atomic_read(&droq->pkts_pending); 1437 writel(droq->pkt_count - pkts_pend, droq->pkts_sent_reg); 1438 droq->pkt_count = pkts_pend; 1439 oct = droq->oct_dev; 1440 } 1441 if (iq) { 1442 spin_lock_bh(&iq->lock); 1443 writel(iq->pkts_processed, iq->inst_cnt_reg); 1444 iq->pkt_in_done -= iq->pkts_processed; 1445 iq->pkts_processed = 0; 1446 /* this write needs to be flushed before we release the lock */ 1447 spin_unlock_bh(&iq->lock); 1448 oct = iq->oct_dev; 1449 } 1450 /*write resend. Writing RESEND in SLI_PKTX_CNTS should be enough 1451 *to trigger tx interrupts as well, if they are pending. 1452 */ 1453 if (oct && (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct))) { 1454 if (droq) 1455 writeq(CN23XX_INTR_RESEND, droq->pkts_sent_reg); 1456 /*we race with firmrware here. read and write the IN_DONE_CNTS*/ 1457 else if (iq) { 1458 instr_cnt = readq(iq->inst_cnt_reg); 1459 writeq(((instr_cnt & 0xFFFFFFFF00000000ULL) | 1460 CN23XX_INTR_RESEND), 1461 iq->inst_cnt_reg); 1462 } 1463 } 1464 } 1465