1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2 /* Copyright (C) 2015-2018 Netronome Systems, Inc. */ 3 4 /* 5 * nfp_main.c 6 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com> 7 * Alejandro Lucero <alejandro.lucero@netronome.com> 8 * Jason McMullan <jason.mcmullan@netronome.com> 9 * Rolf Neugebauer <rolf.neugebauer@netronome.com> 10 */ 11 12 #include <linux/kernel.h> 13 #include <linux/module.h> 14 #include <linux/mutex.h> 15 #include <linux/pci.h> 16 #include <linux/firmware.h> 17 #include <linux/vermagic.h> 18 #include <linux/vmalloc.h> 19 #include <net/devlink.h> 20 21 #include "nfpcore/nfp.h" 22 #include "nfpcore/nfp_cpp.h" 23 #include "nfpcore/nfp_nffw.h" 24 #include "nfpcore/nfp_nsp.h" 25 26 #include "nfpcore/nfp6000_pcie.h" 27 28 #include "nfp_abi.h" 29 #include "nfp_app.h" 30 #include "nfp_main.h" 31 #include "nfp_net.h" 32 33 static const char nfp_driver_name[] = "nfp"; 34 const char nfp_driver_version[] = VERMAGIC_STRING; 35 36 static const struct pci_device_id nfp_pci_device_ids[] = { 37 { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000, 38 PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID, 39 PCI_ANY_ID, 0, 40 }, 41 { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP5000, 42 PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID, 43 PCI_ANY_ID, 0, 44 }, 45 { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000, 46 PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID, 47 PCI_ANY_ID, 0, 48 }, 49 { 0, } /* Required last entry. */ 50 }; 51 MODULE_DEVICE_TABLE(pci, nfp_pci_device_ids); 52 53 int nfp_pf_rtsym_read_optional(struct nfp_pf *pf, const char *format, 54 unsigned int default_val) 55 { 56 char name[256]; 57 int err = 0; 58 u64 val; 59 60 snprintf(name, sizeof(name), format, nfp_cppcore_pcie_unit(pf->cpp)); 61 62 val = nfp_rtsym_read_le(pf->rtbl, name, &err); 63 if (err) { 64 if (err == -ENOENT) 65 return default_val; 66 nfp_err(pf->cpp, "Unable to read symbol %s\n", name); 67 return err; 68 } 69 70 return val; 71 } 72 73 u8 __iomem * 74 nfp_pf_map_rtsym(struct nfp_pf *pf, const char *name, const char *sym_fmt, 75 unsigned int min_size, struct nfp_cpp_area **area) 76 { 77 char pf_symbol[256]; 78 79 snprintf(pf_symbol, sizeof(pf_symbol), sym_fmt, 80 nfp_cppcore_pcie_unit(pf->cpp)); 81 82 return nfp_rtsym_map(pf->rtbl, pf_symbol, name, min_size, area); 83 } 84 85 /* Callers should hold the devlink instance lock */ 86 int nfp_mbox_cmd(struct nfp_pf *pf, u32 cmd, void *in_data, u64 in_length, 87 void *out_data, u64 out_length) 88 { 89 unsigned long err_at; 90 u64 max_data_sz; 91 u32 val = 0; 92 int n, err; 93 94 if (!pf->mbox) 95 return -EOPNOTSUPP; 96 97 max_data_sz = nfp_rtsym_size(pf->mbox) - NFP_MBOX_SYM_MIN_SIZE; 98 99 /* Check if cmd field is clear */ 100 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_CMD, &val); 101 if (err || val) { 102 nfp_warn(pf->cpp, "failed to issue command (%u): %u, err: %d\n", 103 cmd, val, err); 104 return err ?: -EBUSY; 105 } 106 107 in_length = min(in_length, max_data_sz); 108 n = nfp_rtsym_write(pf->cpp, pf->mbox, NFP_MBOX_DATA, in_data, 109 in_length); 110 if (n != in_length) 111 return -EIO; 112 /* Write data_len and wipe reserved */ 113 err = nfp_rtsym_writeq(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, in_length); 114 if (err) 115 return err; 116 117 /* Read back for ordering */ 118 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, &val); 119 if (err) 120 return err; 121 122 /* Write cmd and wipe return value */ 123 err = nfp_rtsym_writeq(pf->cpp, pf->mbox, NFP_MBOX_CMD, cmd); 124 if (err) 125 return err; 126 127 err_at = jiffies + 5 * HZ; 128 while (true) { 129 /* Wait for command to go to 0 (NFP_MBOX_NO_CMD) */ 130 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_CMD, &val); 131 if (err) 132 return err; 133 if (!val) 134 break; 135 136 if (time_is_before_eq_jiffies(err_at)) 137 return -ETIMEDOUT; 138 139 msleep(5); 140 } 141 142 /* Copy output if any (could be error info, do it before reading ret) */ 143 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, &val); 144 if (err) 145 return err; 146 147 out_length = min_t(u32, val, min(out_length, max_data_sz)); 148 n = nfp_rtsym_read(pf->cpp, pf->mbox, NFP_MBOX_DATA, 149 out_data, out_length); 150 if (n != out_length) 151 return -EIO; 152 153 /* Check if there is an error */ 154 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_RET, &val); 155 if (err) 156 return err; 157 if (val) 158 return -val; 159 160 return out_length; 161 } 162 163 static bool nfp_board_ready(struct nfp_pf *pf) 164 { 165 const char *cp; 166 long state; 167 int err; 168 169 cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state"); 170 if (!cp) 171 return false; 172 173 err = kstrtol(cp, 0, &state); 174 if (err < 0) 175 return false; 176 177 return state == 15; 178 } 179 180 static int nfp_pf_board_state_wait(struct nfp_pf *pf) 181 { 182 const unsigned long wait_until = jiffies + 10 * HZ; 183 184 while (!nfp_board_ready(pf)) { 185 if (time_is_before_eq_jiffies(wait_until)) { 186 nfp_err(pf->cpp, "NFP board initialization timeout\n"); 187 return -EINVAL; 188 } 189 190 nfp_info(pf->cpp, "waiting for board initialization\n"); 191 if (msleep_interruptible(500)) 192 return -ERESTARTSYS; 193 194 /* Refresh cached information */ 195 kfree(pf->hwinfo); 196 pf->hwinfo = nfp_hwinfo_read(pf->cpp); 197 } 198 199 return 0; 200 } 201 202 static int nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf) 203 { 204 int err; 205 206 pf->limit_vfs = nfp_rtsym_read_le(pf->rtbl, "nfd_vf_cfg_max_vfs", &err); 207 if (err) { 208 /* For backwards compatibility if symbol not found allow all */ 209 pf->limit_vfs = ~0; 210 if (err == -ENOENT) 211 return 0; 212 213 nfp_warn(pf->cpp, "Warning: VF limit read failed: %d\n", err); 214 return err; 215 } 216 217 err = pci_sriov_set_totalvfs(pf->pdev, pf->limit_vfs); 218 if (err) 219 nfp_warn(pf->cpp, "Failed to set VF count in sysfs: %d\n", err); 220 return 0; 221 } 222 223 static int nfp_pcie_sriov_enable(struct pci_dev *pdev, int num_vfs) 224 { 225 #ifdef CONFIG_PCI_IOV 226 struct nfp_pf *pf = pci_get_drvdata(pdev); 227 int err; 228 229 if (num_vfs > pf->limit_vfs) { 230 nfp_info(pf->cpp, "Firmware limits number of VFs to %u\n", 231 pf->limit_vfs); 232 return -EINVAL; 233 } 234 235 err = pci_enable_sriov(pdev, num_vfs); 236 if (err) { 237 dev_warn(&pdev->dev, "Failed to enable PCI SR-IOV: %d\n", err); 238 return err; 239 } 240 241 mutex_lock(&pf->lock); 242 243 err = nfp_app_sriov_enable(pf->app, num_vfs); 244 if (err) { 245 dev_warn(&pdev->dev, 246 "App specific PCI SR-IOV configuration failed: %d\n", 247 err); 248 goto err_sriov_disable; 249 } 250 251 pf->num_vfs = num_vfs; 252 253 dev_dbg(&pdev->dev, "Created %d VFs.\n", pf->num_vfs); 254 255 mutex_unlock(&pf->lock); 256 return num_vfs; 257 258 err_sriov_disable: 259 mutex_unlock(&pf->lock); 260 pci_disable_sriov(pdev); 261 return err; 262 #endif 263 return 0; 264 } 265 266 static int nfp_pcie_sriov_disable(struct pci_dev *pdev) 267 { 268 #ifdef CONFIG_PCI_IOV 269 struct nfp_pf *pf = pci_get_drvdata(pdev); 270 271 mutex_lock(&pf->lock); 272 273 /* If the VFs are assigned we cannot shut down SR-IOV without 274 * causing issues, so just leave the hardware available but 275 * disabled 276 */ 277 if (pci_vfs_assigned(pdev)) { 278 dev_warn(&pdev->dev, "Disabling while VFs assigned - VFs will not be deallocated\n"); 279 mutex_unlock(&pf->lock); 280 return -EPERM; 281 } 282 283 nfp_app_sriov_disable(pf->app); 284 285 pf->num_vfs = 0; 286 287 mutex_unlock(&pf->lock); 288 289 pci_disable_sriov(pdev); 290 dev_dbg(&pdev->dev, "Removed VFs.\n"); 291 #endif 292 return 0; 293 } 294 295 static int nfp_pcie_sriov_configure(struct pci_dev *pdev, int num_vfs) 296 { 297 if (!pci_get_drvdata(pdev)) 298 return -ENOENT; 299 300 if (num_vfs == 0) 301 return nfp_pcie_sriov_disable(pdev); 302 else 303 return nfp_pcie_sriov_enable(pdev, num_vfs); 304 } 305 306 int nfp_flash_update_common(struct nfp_pf *pf, const char *path, 307 struct netlink_ext_ack *extack) 308 { 309 struct device *dev = &pf->pdev->dev; 310 const struct firmware *fw; 311 struct nfp_nsp *nsp; 312 int err; 313 314 nsp = nfp_nsp_open(pf->cpp); 315 if (IS_ERR(nsp)) { 316 err = PTR_ERR(nsp); 317 if (extack) 318 NL_SET_ERR_MSG_MOD(extack, "can't access NSP"); 319 else 320 dev_err(dev, "Failed to access the NSP: %d\n", err); 321 return err; 322 } 323 324 err = request_firmware_direct(&fw, path, dev); 325 if (err) { 326 NL_SET_ERR_MSG_MOD(extack, 327 "unable to read flash file from disk"); 328 goto exit_close_nsp; 329 } 330 331 dev_info(dev, "Please be patient while writing flash image: %s\n", 332 path); 333 334 err = nfp_nsp_write_flash(nsp, fw); 335 if (err < 0) 336 goto exit_release_fw; 337 dev_info(dev, "Finished writing flash image\n"); 338 err = 0; 339 340 exit_release_fw: 341 release_firmware(fw); 342 exit_close_nsp: 343 nfp_nsp_close(nsp); 344 return err; 345 } 346 347 static const struct firmware * 348 nfp_net_fw_request(struct pci_dev *pdev, struct nfp_pf *pf, const char *name) 349 { 350 const struct firmware *fw = NULL; 351 int err; 352 353 err = request_firmware_direct(&fw, name, &pdev->dev); 354 nfp_info(pf->cpp, " %s: %s\n", 355 name, err ? "not found" : "found, loading..."); 356 if (err) 357 return NULL; 358 359 return fw; 360 } 361 362 /** 363 * nfp_net_fw_find() - Find the correct firmware image for netdev mode 364 * @pdev: PCI Device structure 365 * @pf: NFP PF Device structure 366 * 367 * Return: firmware if found and requested successfully. 368 */ 369 static const struct firmware * 370 nfp_net_fw_find(struct pci_dev *pdev, struct nfp_pf *pf) 371 { 372 struct nfp_eth_table_port *port; 373 const struct firmware *fw; 374 const char *fw_model; 375 char fw_name[256]; 376 const u8 *serial; 377 u16 interface; 378 int spc, i, j; 379 380 nfp_info(pf->cpp, "Looking for firmware file in order of priority:\n"); 381 382 /* First try to find a firmware image specific for this device */ 383 interface = nfp_cpp_interface(pf->cpp); 384 nfp_cpp_serial(pf->cpp, &serial); 385 sprintf(fw_name, "netronome/serial-%pMF-%02hhx-%02hhx.nffw", 386 serial, interface >> 8, interface & 0xff); 387 fw = nfp_net_fw_request(pdev, pf, fw_name); 388 if (fw) 389 return fw; 390 391 /* Then try the PCI name */ 392 sprintf(fw_name, "netronome/pci-%s.nffw", pci_name(pdev)); 393 fw = nfp_net_fw_request(pdev, pf, fw_name); 394 if (fw) 395 return fw; 396 397 /* Finally try the card type and media */ 398 if (!pf->eth_tbl) { 399 dev_err(&pdev->dev, "Error: can't identify media config\n"); 400 return NULL; 401 } 402 403 fw_model = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno"); 404 if (!fw_model) { 405 dev_err(&pdev->dev, "Error: can't read part number\n"); 406 return NULL; 407 } 408 409 spc = ARRAY_SIZE(fw_name); 410 spc -= snprintf(fw_name, spc, "netronome/nic_%s", fw_model); 411 412 for (i = 0; spc > 0 && i < pf->eth_tbl->count; i += j) { 413 port = &pf->eth_tbl->ports[i]; 414 j = 1; 415 while (i + j < pf->eth_tbl->count && 416 port->speed == port[j].speed) 417 j++; 418 419 spc -= snprintf(&fw_name[ARRAY_SIZE(fw_name) - spc], spc, 420 "_%dx%d", j, port->speed / 1000); 421 } 422 423 if (spc <= 0) 424 return NULL; 425 426 spc -= snprintf(&fw_name[ARRAY_SIZE(fw_name) - spc], spc, ".nffw"); 427 if (spc <= 0) 428 return NULL; 429 430 return nfp_net_fw_request(pdev, pf, fw_name); 431 } 432 433 /** 434 * nfp_net_fw_load() - Load the firmware image 435 * @pdev: PCI Device structure 436 * @pf: NFP PF Device structure 437 * @nsp: NFP SP handle 438 * 439 * Return: -ERRNO, 0 for no firmware loaded, 1 for firmware loaded 440 */ 441 static int 442 nfp_fw_load(struct pci_dev *pdev, struct nfp_pf *pf, struct nfp_nsp *nsp) 443 { 444 const struct firmware *fw; 445 u16 interface; 446 int err; 447 448 interface = nfp_cpp_interface(pf->cpp); 449 if (NFP_CPP_INTERFACE_UNIT_of(interface) != 0) { 450 /* Only Unit 0 should reset or load firmware */ 451 dev_info(&pdev->dev, "Firmware will be loaded by partner\n"); 452 return 0; 453 } 454 455 fw = nfp_net_fw_find(pdev, pf); 456 if (!fw) { 457 if (nfp_nsp_has_stored_fw_load(nsp)) 458 nfp_nsp_load_stored_fw(nsp); 459 return 0; 460 } 461 462 dev_info(&pdev->dev, "Soft-reset, loading FW image\n"); 463 err = nfp_nsp_device_soft_reset(nsp); 464 if (err < 0) { 465 dev_err(&pdev->dev, "Failed to soft reset the NFP: %d\n", 466 err); 467 goto exit_release_fw; 468 } 469 470 err = nfp_nsp_load_fw(nsp, fw); 471 if (err < 0) { 472 dev_err(&pdev->dev, "FW loading failed: %d\n", err); 473 goto exit_release_fw; 474 } 475 476 dev_info(&pdev->dev, "Finished loading FW image\n"); 477 478 exit_release_fw: 479 release_firmware(fw); 480 481 return err < 0 ? err : 1; 482 } 483 484 static void 485 nfp_nsp_init_ports(struct pci_dev *pdev, struct nfp_pf *pf, 486 struct nfp_nsp *nsp) 487 { 488 bool needs_reinit = false; 489 int i; 490 491 pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp); 492 if (!pf->eth_tbl) 493 return; 494 495 if (!nfp_nsp_has_mac_reinit(nsp)) 496 return; 497 498 for (i = 0; i < pf->eth_tbl->count; i++) 499 needs_reinit |= pf->eth_tbl->ports[i].override_changed; 500 if (!needs_reinit) 501 return; 502 503 kfree(pf->eth_tbl); 504 if (nfp_nsp_mac_reinit(nsp)) 505 dev_warn(&pdev->dev, "MAC reinit failed\n"); 506 507 pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp); 508 } 509 510 static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf) 511 { 512 struct nfp_nsp *nsp; 513 int err; 514 515 err = nfp_resource_wait(pf->cpp, NFP_RESOURCE_NSP, 30); 516 if (err) 517 return err; 518 519 nsp = nfp_nsp_open(pf->cpp); 520 if (IS_ERR(nsp)) { 521 err = PTR_ERR(nsp); 522 dev_err(&pdev->dev, "Failed to access the NSP: %d\n", err); 523 return err; 524 } 525 526 err = nfp_nsp_wait(nsp); 527 if (err < 0) 528 goto exit_close_nsp; 529 530 nfp_nsp_init_ports(pdev, pf, nsp); 531 532 pf->nspi = __nfp_nsp_identify(nsp); 533 if (pf->nspi) 534 dev_info(&pdev->dev, "BSP: %s\n", pf->nspi->version); 535 536 err = nfp_fw_load(pdev, pf, nsp); 537 if (err < 0) { 538 kfree(pf->nspi); 539 kfree(pf->eth_tbl); 540 dev_err(&pdev->dev, "Failed to load FW\n"); 541 goto exit_close_nsp; 542 } 543 544 pf->fw_loaded = !!err; 545 err = 0; 546 547 exit_close_nsp: 548 nfp_nsp_close(nsp); 549 550 return err; 551 } 552 553 static void nfp_fw_unload(struct nfp_pf *pf) 554 { 555 struct nfp_nsp *nsp; 556 int err; 557 558 nsp = nfp_nsp_open(pf->cpp); 559 if (IS_ERR(nsp)) { 560 nfp_err(pf->cpp, "Reset failed, can't open NSP\n"); 561 return; 562 } 563 564 err = nfp_nsp_device_soft_reset(nsp); 565 if (err < 0) 566 dev_warn(&pf->pdev->dev, "Couldn't unload firmware: %d\n", err); 567 else 568 dev_info(&pf->pdev->dev, "Firmware safely unloaded\n"); 569 570 nfp_nsp_close(nsp); 571 } 572 573 static int nfp_pf_find_rtsyms(struct nfp_pf *pf) 574 { 575 char pf_symbol[256]; 576 unsigned int pf_id; 577 578 pf_id = nfp_cppcore_pcie_unit(pf->cpp); 579 580 /* Optional per-PCI PF mailbox */ 581 snprintf(pf_symbol, sizeof(pf_symbol), NFP_MBOX_SYM_NAME, pf_id); 582 pf->mbox = nfp_rtsym_lookup(pf->rtbl, pf_symbol); 583 if (pf->mbox && nfp_rtsym_size(pf->mbox) < NFP_MBOX_SYM_MIN_SIZE) { 584 nfp_err(pf->cpp, "PF mailbox symbol too small: %llu < %d\n", 585 nfp_rtsym_size(pf->mbox), NFP_MBOX_SYM_MIN_SIZE); 586 return -EINVAL; 587 } 588 589 return 0; 590 } 591 592 static int nfp_pci_probe(struct pci_dev *pdev, 593 const struct pci_device_id *pci_id) 594 { 595 struct devlink *devlink; 596 struct nfp_pf *pf; 597 int err; 598 599 err = pci_enable_device(pdev); 600 if (err < 0) 601 return err; 602 603 pci_set_master(pdev); 604 605 err = dma_set_mask_and_coherent(&pdev->dev, 606 DMA_BIT_MASK(NFP_NET_MAX_DMA_BITS)); 607 if (err) 608 goto err_pci_disable; 609 610 err = pci_request_regions(pdev, nfp_driver_name); 611 if (err < 0) { 612 dev_err(&pdev->dev, "Unable to reserve pci resources.\n"); 613 goto err_pci_disable; 614 } 615 616 devlink = devlink_alloc(&nfp_devlink_ops, sizeof(*pf)); 617 if (!devlink) { 618 err = -ENOMEM; 619 goto err_rel_regions; 620 } 621 pf = devlink_priv(devlink); 622 INIT_LIST_HEAD(&pf->vnics); 623 INIT_LIST_HEAD(&pf->ports); 624 mutex_init(&pf->lock); 625 pci_set_drvdata(pdev, pf); 626 pf->pdev = pdev; 627 628 pf->wq = alloc_workqueue("nfp-%s", 0, 2, pci_name(pdev)); 629 if (!pf->wq) { 630 err = -ENOMEM; 631 goto err_pci_priv_unset; 632 } 633 634 pf->cpp = nfp_cpp_from_nfp6000_pcie(pdev); 635 if (IS_ERR_OR_NULL(pf->cpp)) { 636 err = PTR_ERR(pf->cpp); 637 if (err >= 0) 638 err = -ENOMEM; 639 goto err_disable_msix; 640 } 641 642 err = nfp_resource_table_init(pf->cpp); 643 if (err) 644 goto err_cpp_free; 645 646 pf->hwinfo = nfp_hwinfo_read(pf->cpp); 647 648 dev_info(&pdev->dev, "Assembly: %s%s%s-%s CPLD: %s\n", 649 nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor"), 650 nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno"), 651 nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial"), 652 nfp_hwinfo_lookup(pf->hwinfo, "assembly.revision"), 653 nfp_hwinfo_lookup(pf->hwinfo, "cpld.version")); 654 655 err = nfp_pf_board_state_wait(pf); 656 if (err) 657 goto err_hwinfo_free; 658 659 err = nfp_nsp_init(pdev, pf); 660 if (err) 661 goto err_hwinfo_free; 662 663 pf->mip = nfp_mip_open(pf->cpp); 664 pf->rtbl = __nfp_rtsym_table_read(pf->cpp, pf->mip); 665 666 err = nfp_pf_find_rtsyms(pf); 667 if (err) 668 goto err_fw_unload; 669 670 pf->dump_flag = NFP_DUMP_NSP_DIAG; 671 pf->dumpspec = nfp_net_dump_load_dumpspec(pf->cpp, pf->rtbl); 672 673 err = nfp_pcie_sriov_read_nfd_limit(pf); 674 if (err) 675 goto err_fw_unload; 676 677 pf->num_vfs = pci_num_vf(pdev); 678 if (pf->num_vfs > pf->limit_vfs) { 679 dev_err(&pdev->dev, 680 "Error: %d VFs already enabled, but loaded FW can only support %d\n", 681 pf->num_vfs, pf->limit_vfs); 682 err = -EINVAL; 683 goto err_fw_unload; 684 } 685 686 err = nfp_net_pci_probe(pf); 687 if (err) 688 goto err_fw_unload; 689 690 err = nfp_hwmon_register(pf); 691 if (err) { 692 dev_err(&pdev->dev, "Failed to register hwmon info\n"); 693 goto err_net_remove; 694 } 695 696 return 0; 697 698 err_net_remove: 699 nfp_net_pci_remove(pf); 700 err_fw_unload: 701 kfree(pf->rtbl); 702 nfp_mip_close(pf->mip); 703 if (pf->fw_loaded) 704 nfp_fw_unload(pf); 705 kfree(pf->eth_tbl); 706 kfree(pf->nspi); 707 vfree(pf->dumpspec); 708 err_hwinfo_free: 709 kfree(pf->hwinfo); 710 err_cpp_free: 711 nfp_cpp_free(pf->cpp); 712 err_disable_msix: 713 destroy_workqueue(pf->wq); 714 err_pci_priv_unset: 715 pci_set_drvdata(pdev, NULL); 716 mutex_destroy(&pf->lock); 717 devlink_free(devlink); 718 err_rel_regions: 719 pci_release_regions(pdev); 720 err_pci_disable: 721 pci_disable_device(pdev); 722 723 return err; 724 } 725 726 static void __nfp_pci_shutdown(struct pci_dev *pdev, bool unload_fw) 727 { 728 struct nfp_pf *pf; 729 730 pf = pci_get_drvdata(pdev); 731 if (!pf) 732 return; 733 734 nfp_hwmon_unregister(pf); 735 736 nfp_pcie_sriov_disable(pdev); 737 738 nfp_net_pci_remove(pf); 739 740 vfree(pf->dumpspec); 741 kfree(pf->rtbl); 742 nfp_mip_close(pf->mip); 743 if (unload_fw && pf->fw_loaded) 744 nfp_fw_unload(pf); 745 746 destroy_workqueue(pf->wq); 747 pci_set_drvdata(pdev, NULL); 748 kfree(pf->hwinfo); 749 nfp_cpp_free(pf->cpp); 750 751 kfree(pf->eth_tbl); 752 kfree(pf->nspi); 753 mutex_destroy(&pf->lock); 754 devlink_free(priv_to_devlink(pf)); 755 pci_release_regions(pdev); 756 pci_disable_device(pdev); 757 } 758 759 static void nfp_pci_remove(struct pci_dev *pdev) 760 { 761 __nfp_pci_shutdown(pdev, true); 762 } 763 764 static void nfp_pci_shutdown(struct pci_dev *pdev) 765 { 766 __nfp_pci_shutdown(pdev, false); 767 } 768 769 static struct pci_driver nfp_pci_driver = { 770 .name = nfp_driver_name, 771 .id_table = nfp_pci_device_ids, 772 .probe = nfp_pci_probe, 773 .remove = nfp_pci_remove, 774 .shutdown = nfp_pci_shutdown, 775 .sriov_configure = nfp_pcie_sriov_configure, 776 }; 777 778 static int __init nfp_main_init(void) 779 { 780 int err; 781 782 pr_info("%s: NFP PCIe Driver, Copyright (C) 2014-2017 Netronome Systems\n", 783 nfp_driver_name); 784 785 nfp_net_debugfs_create(); 786 787 err = pci_register_driver(&nfp_pci_driver); 788 if (err < 0) 789 goto err_destroy_debugfs; 790 791 err = pci_register_driver(&nfp_netvf_pci_driver); 792 if (err) 793 goto err_unreg_pf; 794 795 return err; 796 797 err_unreg_pf: 798 pci_unregister_driver(&nfp_pci_driver); 799 err_destroy_debugfs: 800 nfp_net_debugfs_destroy(); 801 return err; 802 } 803 804 static void __exit nfp_main_exit(void) 805 { 806 pci_unregister_driver(&nfp_netvf_pci_driver); 807 pci_unregister_driver(&nfp_pci_driver); 808 nfp_net_debugfs_destroy(); 809 } 810 811 module_init(nfp_main_init); 812 module_exit(nfp_main_exit); 813 814 MODULE_FIRMWARE("netronome/nic_AMDA0081-0001_1x40.nffw"); 815 MODULE_FIRMWARE("netronome/nic_AMDA0081-0001_4x10.nffw"); 816 MODULE_FIRMWARE("netronome/nic_AMDA0096-0001_2x10.nffw"); 817 MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_2x40.nffw"); 818 MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_4x10_1x40.nffw"); 819 MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_8x10.nffw"); 820 MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_2x10.nffw"); 821 MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_2x25.nffw"); 822 MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_1x10_1x25.nffw"); 823 824 MODULE_AUTHOR("Netronome Systems <oss-drivers@netronome.com>"); 825 MODULE_LICENSE("GPL"); 826 MODULE_DESCRIPTION("The Netronome Flow Processor (NFP) driver."); 827 MODULE_VERSION(UTS_RELEASE); 828