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WIP FPC-III support
[linux/fpc-iii.git] / drivers / net / ethernet / netronome / nfp / nfp_main.c
blob742a420152b364b723e47fa96c72a472d1a97c10
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/vmalloc.h>
18 #include <net/devlink.h>
19
20 #include "nfpcore/nfp.h"
21 #include "nfpcore/nfp_cpp.h"
22 #include "nfpcore/nfp_nffw.h"
23 #include "nfpcore/nfp_nsp.h"
24
25 #include "nfpcore/nfp6000_pcie.h"
26
27 #include "nfp_abi.h"
28 #include "nfp_app.h"
29 #include "nfp_main.h"
30 #include "nfp_net.h"
31
32 static const char nfp_driver_name[] = "nfp";
33
34 static const struct pci_device_id nfp_pci_device_ids[] = {
35 { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000,
36 PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
37 PCI_ANY_ID, 0,
38 },
39 { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP5000,
40 PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
41 PCI_ANY_ID, 0,
42 },
43 { PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000,
44 PCI_VENDOR_ID_NETRONOME, PCI_ANY_ID,
45 PCI_ANY_ID, 0,
46 },
47 { 0, } /* Required last entry. */
48 };
49 MODULE_DEVICE_TABLE(pci, nfp_pci_device_ids);
50
51 int nfp_pf_rtsym_read_optional(struct nfp_pf *pf, const char *format,
52 unsigned int default_val)
53 {
54 char name[256];
55 int err = 0;
56 u64 val;
57
58 snprintf(name, sizeof(name), format, nfp_cppcore_pcie_unit(pf->cpp));
59
60 val = nfp_rtsym_read_le(pf->rtbl, name, &err);
61 if (err) {
62 if (err == -ENOENT)
63 return default_val;
64 nfp_err(pf->cpp, "Unable to read symbol %s\n", name);
65 return err;
66 }
67
68 return val;
69 }
70
71 u8 __iomem *
72 nfp_pf_map_rtsym(struct nfp_pf *pf, const char *name, const char *sym_fmt,
73 unsigned int min_size, struct nfp_cpp_area **area)
74 {
75 char pf_symbol[256];
76
77 snprintf(pf_symbol, sizeof(pf_symbol), sym_fmt,
78 nfp_cppcore_pcie_unit(pf->cpp));
79
80 return nfp_rtsym_map(pf->rtbl, pf_symbol, name, min_size, area);
81 }
82
83 /* Callers should hold the devlink instance lock */
84 int nfp_mbox_cmd(struct nfp_pf *pf, u32 cmd, void *in_data, u64 in_length,
85 void *out_data, u64 out_length)
86 {
87 unsigned long err_at;
88 u64 max_data_sz;
89 u32 val = 0;
90 int n, err;
91
92 if (!pf->mbox)
93 return -EOPNOTSUPP;
94
95 max_data_sz = nfp_rtsym_size(pf->mbox) - NFP_MBOX_SYM_MIN_SIZE;
96
97 /* Check if cmd field is clear */
98 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_CMD, &val);
99 if (err || val) {
100 nfp_warn(pf->cpp, "failed to issue command (%u): %u, err: %d\n",
101 cmd, val, err);
102 return err ?: -EBUSY;
103 }
104
105 in_length = min(in_length, max_data_sz);
106 n = nfp_rtsym_write(pf->cpp, pf->mbox, NFP_MBOX_DATA, in_data,
107 in_length);
108 if (n != in_length)
109 return -EIO;
110 /* Write data_len and wipe reserved */
111 err = nfp_rtsym_writeq(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, in_length);
112 if (err)
113 return err;
114
115 /* Read back for ordering */
116 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, &val);
117 if (err)
118 return err;
119
120 /* Write cmd and wipe return value */
121 err = nfp_rtsym_writeq(pf->cpp, pf->mbox, NFP_MBOX_CMD, cmd);
122 if (err)
123 return err;
124
125 err_at = jiffies + 5 * HZ;
126 while (true) {
127 /* Wait for command to go to 0 (NFP_MBOX_NO_CMD) */
128 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_CMD, &val);
129 if (err)
130 return err;
131 if (!val)
132 break;
133
134 if (time_is_before_eq_jiffies(err_at))
135 return -ETIMEDOUT;
136
137 msleep(5);
138 }
139
140 /* Copy output if any (could be error info, do it before reading ret) */
141 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_DATA_LEN, &val);
142 if (err)
143 return err;
144
145 out_length = min_t(u32, val, min(out_length, max_data_sz));
146 n = nfp_rtsym_read(pf->cpp, pf->mbox, NFP_MBOX_DATA,
147 out_data, out_length);
148 if (n != out_length)
149 return -EIO;
150
151 /* Check if there is an error */
152 err = nfp_rtsym_readl(pf->cpp, pf->mbox, NFP_MBOX_RET, &val);
153 if (err)
154 return err;
155 if (val)
156 return -val;
157
158 return out_length;
159 }
160
161 static bool nfp_board_ready(struct nfp_pf *pf)
162 {
163 const char *cp;
164 long state;
165 int err;
166
167 cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
168 if (!cp)
169 return false;
170
171 err = kstrtol(cp, 0, &state);
172 if (err < 0)
173 return false;
174
175 return state == 15;
176 }
177
178 static int nfp_pf_board_state_wait(struct nfp_pf *pf)
179 {
180 const unsigned long wait_until = jiffies + 10 * HZ;
181
182 while (!nfp_board_ready(pf)) {
183 if (time_is_before_eq_jiffies(wait_until)) {
184 nfp_err(pf->cpp, "NFP board initialization timeout\n");
185 return -EINVAL;
186 }
187
188 nfp_info(pf->cpp, "waiting for board initialization\n");
189 if (msleep_interruptible(500))
190 return -ERESTARTSYS;
191
192 /* Refresh cached information */
193 kfree(pf->hwinfo);
194 pf->hwinfo = nfp_hwinfo_read(pf->cpp);
195 }
196
197 return 0;
198 }
199
200 static int nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf)
201 {
202 int err;
203
204 pf->limit_vfs = nfp_rtsym_read_le(pf->rtbl, "nfd_vf_cfg_max_vfs", &err);
205 if (err) {
206 /* For backwards compatibility if symbol not found allow all */
207 pf->limit_vfs = ~0;
208 if (err == -ENOENT)
209 return 0;
210
211 nfp_warn(pf->cpp, "Warning: VF limit read failed: %d\n", err);
212 return err;
213 }
214
215 err = pci_sriov_set_totalvfs(pf->pdev, pf->limit_vfs);
216 if (err)
217 nfp_warn(pf->cpp, "Failed to set VF count in sysfs: %d\n", err);
218 return 0;
219 }
220
221 static int nfp_pcie_sriov_enable(struct pci_dev *pdev, int num_vfs)
222 {
223 #ifdef CONFIG_PCI_IOV
224 struct nfp_pf *pf = pci_get_drvdata(pdev);
225 int err;
226
227 if (num_vfs > pf->limit_vfs) {
228 nfp_info(pf->cpp, "Firmware limits number of VFs to %u\n",
229 pf->limit_vfs);
230 return -EINVAL;
231 }
232
233 err = pci_enable_sriov(pdev, num_vfs);
234 if (err) {
235 dev_warn(&pdev->dev, "Failed to enable PCI SR-IOV: %d\n", err);
236 return err;
237 }
238
239 mutex_lock(&pf->lock);
240
241 err = nfp_app_sriov_enable(pf->app, num_vfs);
242 if (err) {
243 dev_warn(&pdev->dev,
244 "App specific PCI SR-IOV configuration failed: %d\n",
245 err);
246 goto err_sriov_disable;
247 }
248
249 pf->num_vfs = num_vfs;
250
251 dev_dbg(&pdev->dev, "Created %d VFs.\n", pf->num_vfs);
252
253 mutex_unlock(&pf->lock);
254 return num_vfs;
255
256 err_sriov_disable:
257 mutex_unlock(&pf->lock);
258 pci_disable_sriov(pdev);
259 return err;
260 #endif
261 return 0;
262 }
263
264 static int nfp_pcie_sriov_disable(struct pci_dev *pdev)
265 {
266 #ifdef CONFIG_PCI_IOV
267 struct nfp_pf *pf = pci_get_drvdata(pdev);
268
269 mutex_lock(&pf->lock);
270
271 /* If the VFs are assigned we cannot shut down SR-IOV without
272 * causing issues, so just leave the hardware available but
273 * disabled
274 */
275 if (pci_vfs_assigned(pdev)) {
276 dev_warn(&pdev->dev, "Disabling while VFs assigned - VFs will not be deallocated\n");
277 mutex_unlock(&pf->lock);
278 return -EPERM;
279 }
280
281 nfp_app_sriov_disable(pf->app);
282
283 pf->num_vfs = 0;
284
285 mutex_unlock(&pf->lock);
286
287 pci_disable_sriov(pdev);
288 dev_dbg(&pdev->dev, "Removed VFs.\n");
289 #endif
290 return 0;
291 }
292
293 static int nfp_pcie_sriov_configure(struct pci_dev *pdev, int num_vfs)
294 {
295 if (!pci_get_drvdata(pdev))
296 return -ENOENT;
297
298 if (num_vfs == 0)
299 return nfp_pcie_sriov_disable(pdev);
300 else
301 return nfp_pcie_sriov_enable(pdev, num_vfs);
302 }
303
304 int nfp_flash_update_common(struct nfp_pf *pf, const struct firmware *fw,
305 struct netlink_ext_ack *extack)
306 {
307 struct device *dev = &pf->pdev->dev;
308 struct nfp_nsp *nsp;
309 int err;
310
311 nsp = nfp_nsp_open(pf->cpp);
312 if (IS_ERR(nsp)) {
313 err = PTR_ERR(nsp);
314 if (extack)
315 NL_SET_ERR_MSG_MOD(extack, "can't access NSP");
316 else
317 dev_err(dev, "Failed to access the NSP: %d\n", err);
318 return err;
319 }
320
321 err = nfp_nsp_write_flash(nsp, fw);
322 if (err < 0)
323 goto exit_close_nsp;
324 dev_info(dev, "Finished writing flash image\n");
325 err = 0;
326
327 exit_close_nsp:
328 nfp_nsp_close(nsp);
329 return err;
330 }
331
332 static const struct firmware *
333 nfp_net_fw_request(struct pci_dev *pdev, struct nfp_pf *pf, const char *name)
334 {
335 const struct firmware *fw = NULL;
336 int err;
337
338 err = request_firmware_direct(&fw, name, &pdev->dev);
339 nfp_info(pf->cpp, " %s: %s\n",
340 name, err ? "not found" : "found");
341 if (err)
342 return NULL;
343
344 return fw;
345 }
346
347 /**
348 * nfp_net_fw_find() - Find the correct firmware image for netdev mode
349 * @pdev: PCI Device structure
350 * @pf: NFP PF Device structure
351 *
352 * Return: firmware if found and requested successfully.
353 */
354 static const struct firmware *
355 nfp_net_fw_find(struct pci_dev *pdev, struct nfp_pf *pf)
356 {
357 struct nfp_eth_table_port *port;
358 const struct firmware *fw;
359 const char *fw_model;
360 char fw_name[256];
361 const u8 *serial;
362 u16 interface;
363 int spc, i, j;
364
365 nfp_info(pf->cpp, "Looking for firmware file in order of priority:\n");
366
367 /* First try to find a firmware image specific for this device */
368 interface = nfp_cpp_interface(pf->cpp);
369 nfp_cpp_serial(pf->cpp, &serial);
370 sprintf(fw_name, "netronome/serial-%pMF-%02hhx-%02hhx.nffw",
371 serial, interface >> 8, interface & 0xff);
372 fw = nfp_net_fw_request(pdev, pf, fw_name);
373 if (fw)
374 return fw;
375
376 /* Then try the PCI name */
377 sprintf(fw_name, "netronome/pci-%s.nffw", pci_name(pdev));
378 fw = nfp_net_fw_request(pdev, pf, fw_name);
379 if (fw)
380 return fw;
381
382 /* Finally try the card type and media */
383 if (!pf->eth_tbl) {
384 dev_err(&pdev->dev, "Error: can't identify media config\n");
385 return NULL;
386 }
387
388 fw_model = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno");
389 if (!fw_model) {
390 dev_err(&pdev->dev, "Error: can't read part number\n");
391 return NULL;
392 }
393
394 spc = ARRAY_SIZE(fw_name);
395 spc -= snprintf(fw_name, spc, "netronome/nic_%s", fw_model);
396
397 for (i = 0; spc > 0 && i < pf->eth_tbl->count; i += j) {
398 port = &pf->eth_tbl->ports[i];
399 j = 1;
400 while (i + j < pf->eth_tbl->count &&
401 port->speed == port[j].speed)
402 j++;
403
404 spc -= snprintf(&fw_name[ARRAY_SIZE(fw_name) - spc], spc,
405 "_%dx%d", j, port->speed / 1000);
406 }
407
408 if (spc <= 0)
409 return NULL;
410
411 spc -= snprintf(&fw_name[ARRAY_SIZE(fw_name) - spc], spc, ".nffw");
412 if (spc <= 0)
413 return NULL;
414
415 return nfp_net_fw_request(pdev, pf, fw_name);
416 }
417
418 static int
419 nfp_get_fw_policy_value(struct pci_dev *pdev, struct nfp_nsp *nsp,
420 const char *key, const char *default_val, int max_val,
421 int *value)
422 {
423 char hwinfo[64];
424 long hi_val;
425 int err;
426
427 snprintf(hwinfo, sizeof(hwinfo), key);
428 err = nfp_nsp_hwinfo_lookup_optional(nsp, hwinfo, sizeof(hwinfo),
429 default_val);
430 if (err)
431 return err;
432
433 err = kstrtol(hwinfo, 0, &hi_val);
434 if (err || hi_val < 0 || hi_val > max_val) {
435 dev_warn(&pdev->dev,
436 "Invalid value '%s' from '%s', ignoring\n",
437 hwinfo, key);
438 err = kstrtol(default_val, 0, &hi_val);
439 }
440
441 *value = hi_val;
442 return err;
443 }
444
445 /**
446 * nfp_fw_load() - Load the firmware image
447 * @pdev: PCI Device structure
448 * @pf: NFP PF Device structure
449 * @nsp: NFP SP handle
450 *
451 * Return: -ERRNO, 0 for no firmware loaded, 1 for firmware loaded
452 */
453 static int
454 nfp_fw_load(struct pci_dev *pdev, struct nfp_pf *pf, struct nfp_nsp *nsp)
455 {
456 bool do_reset, fw_loaded = false;
457 const struct firmware *fw = NULL;
458 int err, reset, policy, ifcs = 0;
459 char *token, *ptr;
460 char hwinfo[64];
461 u16 interface;
462
463 snprintf(hwinfo, sizeof(hwinfo), "abi_drv_load_ifc");
464 err = nfp_nsp_hwinfo_lookup_optional(nsp, hwinfo, sizeof(hwinfo),
465 NFP_NSP_DRV_LOAD_IFC_DEFAULT);
466 if (err)
467 return err;
468
469 interface = nfp_cpp_interface(pf->cpp);
470 ptr = hwinfo;
471 while ((token = strsep(&ptr, ","))) {
472 unsigned long interface_hi;
473
474 err = kstrtoul(token, 0, &interface_hi);
475 if (err) {
476 dev_err(&pdev->dev,
477 "Failed to parse interface '%s': %d\n",
478 token, err);
479 return err;
480 }
481
482 ifcs++;
483 if (interface == interface_hi)
484 break;
485 }
486
487 if (!token) {
488 dev_info(&pdev->dev, "Firmware will be loaded by partner\n");
489 return 0;
490 }
491
492 err = nfp_get_fw_policy_value(pdev, nsp, "abi_drv_reset",
493 NFP_NSP_DRV_RESET_DEFAULT,
494 NFP_NSP_DRV_RESET_NEVER, &reset);
495 if (err)
496 return err;
497
498 err = nfp_get_fw_policy_value(pdev, nsp, "app_fw_from_flash",
499 NFP_NSP_APP_FW_LOAD_DEFAULT,
500 NFP_NSP_APP_FW_LOAD_PREF, &policy);
501 if (err)
502 return err;
503
504 fw = nfp_net_fw_find(pdev, pf);
505 do_reset = reset == NFP_NSP_DRV_RESET_ALWAYS ||
506 (fw && reset == NFP_NSP_DRV_RESET_DISK);
507
508 if (do_reset) {
509 dev_info(&pdev->dev, "Soft-resetting the NFP\n");
510 err = nfp_nsp_device_soft_reset(nsp);
511 if (err < 0) {
512 dev_err(&pdev->dev,
513 "Failed to soft reset the NFP: %d\n", err);
514 goto exit_release_fw;
515 }
516 }
517
518 if (fw && policy != NFP_NSP_APP_FW_LOAD_FLASH) {
519 if (nfp_nsp_has_fw_loaded(nsp) && nfp_nsp_fw_loaded(nsp))
520 goto exit_release_fw;
521
522 err = nfp_nsp_load_fw(nsp, fw);
523 if (err < 0) {
524 dev_err(&pdev->dev, "FW loading failed: %d\n",
525 err);
526 goto exit_release_fw;
527 }
528 dev_info(&pdev->dev, "Finished loading FW image\n");
529 fw_loaded = true;
530 } else if (policy != NFP_NSP_APP_FW_LOAD_DISK &&
531 nfp_nsp_has_stored_fw_load(nsp)) {
532
533 /* Don't propagate this error to stick with legacy driver
534 * behavior, failure will be detected later during init.
535 */
536 if (!nfp_nsp_load_stored_fw(nsp))
537 dev_info(&pdev->dev, "Finished loading stored FW image\n");
538
539 /* Don't flag the fw_loaded in this case since other devices
540 * may reuse the firmware when configured this way
541 */
542 } else {
543 dev_warn(&pdev->dev, "Didn't load firmware, please update flash or reconfigure card\n");
544 }
545
546 exit_release_fw:
547 release_firmware(fw);
548
549 /* We don't want to unload firmware when other devices may still be
550 * dependent on it, which could be the case if there are multiple
551 * devices that could load firmware.
552 */
553 if (fw_loaded && ifcs == 1)
554 pf->unload_fw_on_remove = true;
555
556 return err < 0 ? err : fw_loaded;
557 }
558
559 static void
560 nfp_nsp_init_ports(struct pci_dev *pdev, struct nfp_pf *pf,
561 struct nfp_nsp *nsp)
562 {
563 bool needs_reinit = false;
564 int i;
565
566 pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
567 if (!pf->eth_tbl)
568 return;
569
570 if (!nfp_nsp_has_mac_reinit(nsp))
571 return;
572
573 for (i = 0; i < pf->eth_tbl->count; i++)
574 needs_reinit |= pf->eth_tbl->ports[i].override_changed;
575 if (!needs_reinit)
576 return;
577
578 kfree(pf->eth_tbl);
579 if (nfp_nsp_mac_reinit(nsp))
580 dev_warn(&pdev->dev, "MAC reinit failed\n");
581
582 pf->eth_tbl = __nfp_eth_read_ports(pf->cpp, nsp);
583 }
584
585 static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
586 {
587 struct nfp_nsp *nsp;
588 int err;
589
590 err = nfp_resource_wait(pf->cpp, NFP_RESOURCE_NSP, 30);
591 if (err)
592 return err;
593
594 nsp = nfp_nsp_open(pf->cpp);
595 if (IS_ERR(nsp)) {
596 err = PTR_ERR(nsp);
597 dev_err(&pdev->dev, "Failed to access the NSP: %d\n", err);
598 return err;
599 }
600
601 err = nfp_nsp_wait(nsp);
602 if (err < 0)
603 goto exit_close_nsp;
604
605 nfp_nsp_init_ports(pdev, pf, nsp);
606
607 pf->nspi = __nfp_nsp_identify(nsp);
608 if (pf->nspi)
609 dev_info(&pdev->dev, "BSP: %s\n", pf->nspi->version);
610
611 err = nfp_fw_load(pdev, pf, nsp);
612 if (err < 0) {
613 kfree(pf->nspi);
614 kfree(pf->eth_tbl);
615 dev_err(&pdev->dev, "Failed to load FW\n");
616 goto exit_close_nsp;
617 }
618
619 pf->fw_loaded = !!err;
620 err = 0;
621
622 exit_close_nsp:
623 nfp_nsp_close(nsp);
624
625 return err;
626 }
627
628 static void nfp_fw_unload(struct nfp_pf *pf)
629 {
630 struct nfp_nsp *nsp;
631 int err;
632
633 nsp = nfp_nsp_open(pf->cpp);
634 if (IS_ERR(nsp)) {
635 nfp_err(pf->cpp, "Reset failed, can't open NSP\n");
636 return;
637 }
638
639 err = nfp_nsp_device_soft_reset(nsp);
640 if (err < 0)
641 dev_warn(&pf->pdev->dev, "Couldn't unload firmware: %d\n", err);
642 else
643 dev_info(&pf->pdev->dev, "Firmware safely unloaded\n");
644
645 nfp_nsp_close(nsp);
646 }
647
648 static int nfp_pf_find_rtsyms(struct nfp_pf *pf)
649 {
650 char pf_symbol[256];
651 unsigned int pf_id;
652
653 pf_id = nfp_cppcore_pcie_unit(pf->cpp);
654
655 /* Optional per-PCI PF mailbox */
656 snprintf(pf_symbol, sizeof(pf_symbol), NFP_MBOX_SYM_NAME, pf_id);
657 pf->mbox = nfp_rtsym_lookup(pf->rtbl, pf_symbol);
658 if (pf->mbox && nfp_rtsym_size(pf->mbox) < NFP_MBOX_SYM_MIN_SIZE) {
659 nfp_err(pf->cpp, "PF mailbox symbol too small: %llu < %d\n",
660 nfp_rtsym_size(pf->mbox), NFP_MBOX_SYM_MIN_SIZE);
661 return -EINVAL;
662 }
663
664 return 0;
665 }
666
667 static int nfp_pci_probe(struct pci_dev *pdev,
668 const struct pci_device_id *pci_id)
669 {
670 struct devlink *devlink;
671 struct nfp_pf *pf;
672 int err;
673
674 if (pdev->vendor == PCI_VENDOR_ID_NETRONOME &&
675 pdev->device == PCI_DEVICE_ID_NETRONOME_NFP6000_VF)
676 dev_warn(&pdev->dev, "Binding NFP VF device to the NFP PF driver, the VF driver is called 'nfp_netvf'\n");
677
678 err = pci_enable_device(pdev);
679 if (err < 0)
680 return err;
681
682 pci_set_master(pdev);
683
684 err = dma_set_mask_and_coherent(&pdev->dev,
685 DMA_BIT_MASK(NFP_NET_MAX_DMA_BITS));
686 if (err)
687 goto err_pci_disable;
688
689 err = pci_request_regions(pdev, nfp_driver_name);
690 if (err < 0) {
691 dev_err(&pdev->dev, "Unable to reserve pci resources.\n");
692 goto err_pci_disable;
693 }
694
695 devlink = devlink_alloc(&nfp_devlink_ops, sizeof(*pf));
696 if (!devlink) {
697 err = -ENOMEM;
698 goto err_rel_regions;
699 }
700 pf = devlink_priv(devlink);
701 INIT_LIST_HEAD(&pf->vnics);
702 INIT_LIST_HEAD(&pf->ports);
703 mutex_init(&pf->lock);
704 pci_set_drvdata(pdev, pf);
705 pf->pdev = pdev;
706
707 pf->wq = alloc_workqueue("nfp-%s", 0, 2, pci_name(pdev));
708 if (!pf->wq) {
709 err = -ENOMEM;
710 goto err_pci_priv_unset;
711 }
712
713 pf->cpp = nfp_cpp_from_nfp6000_pcie(pdev);
714 if (IS_ERR(pf->cpp)) {
715 err = PTR_ERR(pf->cpp);
716 goto err_disable_msix;
717 }
718
719 err = nfp_resource_table_init(pf->cpp);
720 if (err)
721 goto err_cpp_free;
722
723 pf->hwinfo = nfp_hwinfo_read(pf->cpp);
724
725 dev_info(&pdev->dev, "Assembly: %s%s%s-%s CPLD: %s\n",
726 nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor"),
727 nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno"),
728 nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial"),
729 nfp_hwinfo_lookup(pf->hwinfo, "assembly.revision"),
730 nfp_hwinfo_lookup(pf->hwinfo, "cpld.version"));
731
732 err = nfp_pf_board_state_wait(pf);
733 if (err)
734 goto err_hwinfo_free;
735
736 err = nfp_nsp_init(pdev, pf);
737 if (err)
738 goto err_hwinfo_free;
739
740 pf->mip = nfp_mip_open(pf->cpp);
741 pf->rtbl = __nfp_rtsym_table_read(pf->cpp, pf->mip);
742
743 err = nfp_pf_find_rtsyms(pf);
744 if (err)
745 goto err_fw_unload;
746
747 pf->dump_flag = NFP_DUMP_NSP_DIAG;
748 pf->dumpspec = nfp_net_dump_load_dumpspec(pf->cpp, pf->rtbl);
749
750 err = nfp_pcie_sriov_read_nfd_limit(pf);
751 if (err)
752 goto err_fw_unload;
753
754 pf->num_vfs = pci_num_vf(pdev);
755 if (pf->num_vfs > pf->limit_vfs) {
756 dev_err(&pdev->dev,
757 "Error: %d VFs already enabled, but loaded FW can only support %d\n",
758 pf->num_vfs, pf->limit_vfs);
759 err = -EINVAL;
760 goto err_fw_unload;
761 }
762
763 err = nfp_net_pci_probe(pf);
764 if (err)
765 goto err_fw_unload;
766
767 err = nfp_hwmon_register(pf);
768 if (err) {
769 dev_err(&pdev->dev, "Failed to register hwmon info\n");
770 goto err_net_remove;
771 }
772
773 return 0;
774
775 err_net_remove:
776 nfp_net_pci_remove(pf);
777 err_fw_unload:
778 kfree(pf->rtbl);
779 nfp_mip_close(pf->mip);
780 if (pf->unload_fw_on_remove)
781 nfp_fw_unload(pf);
782 kfree(pf->eth_tbl);
783 kfree(pf->nspi);
784 vfree(pf->dumpspec);
785 err_hwinfo_free:
786 kfree(pf->hwinfo);
787 err_cpp_free:
788 nfp_cpp_free(pf->cpp);
789 err_disable_msix:
790 destroy_workqueue(pf->wq);
791 err_pci_priv_unset:
792 pci_set_drvdata(pdev, NULL);
793 mutex_destroy(&pf->lock);
794 devlink_free(devlink);
795 err_rel_regions:
796 pci_release_regions(pdev);
797 err_pci_disable:
798 pci_disable_device(pdev);
799
800 return err;
801 }
802
803 static void __nfp_pci_shutdown(struct pci_dev *pdev, bool unload_fw)
804 {
805 struct nfp_pf *pf;
806
807 pf = pci_get_drvdata(pdev);
808 if (!pf)
809 return;
810
811 nfp_hwmon_unregister(pf);
812
813 nfp_pcie_sriov_disable(pdev);
814
815 nfp_net_pci_remove(pf);
816
817 vfree(pf->dumpspec);
818 kfree(pf->rtbl);
819 nfp_mip_close(pf->mip);
820 if (unload_fw && pf->unload_fw_on_remove)
821 nfp_fw_unload(pf);
822
823 destroy_workqueue(pf->wq);
824 pci_set_drvdata(pdev, NULL);
825 kfree(pf->hwinfo);
826 nfp_cpp_free(pf->cpp);
827
828 kfree(pf->eth_tbl);
829 kfree(pf->nspi);
830 mutex_destroy(&pf->lock);
831 devlink_free(priv_to_devlink(pf));
832 pci_release_regions(pdev);
833 pci_disable_device(pdev);
834 }
835
836 static void nfp_pci_remove(struct pci_dev *pdev)
837 {
838 __nfp_pci_shutdown(pdev, true);
839 }
840
841 static void nfp_pci_shutdown(struct pci_dev *pdev)
842 {
843 __nfp_pci_shutdown(pdev, false);
844 }
845
846 static struct pci_driver nfp_pci_driver = {
847 .name = nfp_driver_name,
848 .id_table = nfp_pci_device_ids,
849 .probe = nfp_pci_probe,
850 .remove = nfp_pci_remove,
851 .shutdown = nfp_pci_shutdown,
852 .sriov_configure = nfp_pcie_sriov_configure,
853 };
854
855 static int __init nfp_main_init(void)
856 {
857 int err;
858
859 pr_info("%s: NFP PCIe Driver, Copyright (C) 2014-2017 Netronome Systems\n",
860 nfp_driver_name);
861
862 nfp_net_debugfs_create();
863
864 err = pci_register_driver(&nfp_pci_driver);
865 if (err < 0)
866 goto err_destroy_debugfs;
867
868 err = pci_register_driver(&nfp_netvf_pci_driver);
869 if (err)
870 goto err_unreg_pf;
871
872 return err;
873
874 err_unreg_pf:
875 pci_unregister_driver(&nfp_pci_driver);
876 err_destroy_debugfs:
877 nfp_net_debugfs_destroy();
878 return err;
879 }
880
881 static void __exit nfp_main_exit(void)
882 {
883 pci_unregister_driver(&nfp_netvf_pci_driver);
884 pci_unregister_driver(&nfp_pci_driver);
885 nfp_net_debugfs_destroy();
886 }
887
888 module_init(nfp_main_init);
889 module_exit(nfp_main_exit);
890
891 MODULE_FIRMWARE("netronome/nic_AMDA0058-0011_2x40.nffw");
892 MODULE_FIRMWARE("netronome/nic_AMDA0058-0012_2x40.nffw");
893 MODULE_FIRMWARE("netronome/nic_AMDA0081-0001_1x40.nffw");
894 MODULE_FIRMWARE("netronome/nic_AMDA0081-0001_4x10.nffw");
895 MODULE_FIRMWARE("netronome/nic_AMDA0096-0001_2x10.nffw");
896 MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_2x40.nffw");
897 MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_4x10_1x40.nffw");
898 MODULE_FIRMWARE("netronome/nic_AMDA0097-0001_8x10.nffw");
899 MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_2x10.nffw");
900 MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_2x25.nffw");
901 MODULE_FIRMWARE("netronome/nic_AMDA0099-0001_1x10_1x25.nffw");
902
903 MODULE_AUTHOR("Netronome Systems <oss-drivers@netronome.com>");
904 MODULE_LICENSE("GPL");
905 MODULE_DESCRIPTION("The Netronome Flow Processor (NFP) driver.");
Linux with added FPC-III support