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2
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4
5
6#include <linux/etherdevice.h>
7#include <linux/pci.h>
8#include <linux/module.h>
9#include "net_driver.h"
10#include "ef10_sriov.h"
11#include "efx.h"
12#include "nic.h"
13#include "mcdi_pcol.h"
14
15static int efx_ef10_evb_port_assign(struct efx_nic *efx, unsigned int port_id,
16 unsigned int vf_fn)
17{
18 MCDI_DECLARE_BUF(inbuf, MC_CMD_EVB_PORT_ASSIGN_IN_LEN);
19 struct efx_ef10_nic_data *nic_data = efx->nic_data;
20
21 MCDI_SET_DWORD(inbuf, EVB_PORT_ASSIGN_IN_PORT_ID, port_id);
22 MCDI_POPULATE_DWORD_2(inbuf, EVB_PORT_ASSIGN_IN_FUNCTION,
23 EVB_PORT_ASSIGN_IN_PF, nic_data->pf_index,
24 EVB_PORT_ASSIGN_IN_VF, vf_fn);
25
26 return efx_mcdi_rpc(efx, MC_CMD_EVB_PORT_ASSIGN, inbuf, sizeof(inbuf),
27 NULL, 0, NULL);
28}
29
30static int efx_ef10_vswitch_alloc(struct efx_nic *efx, unsigned int port_id,
31 unsigned int vswitch_type)
32{
33 MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_ALLOC_IN_LEN);
34 int rc;
35
36 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_UPSTREAM_PORT_ID, port_id);
37 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_TYPE, vswitch_type);
38 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 2);
39 MCDI_POPULATE_DWORD_1(inbuf, VSWITCH_ALLOC_IN_FLAGS,
40 VSWITCH_ALLOC_IN_FLAG_AUTO_PORT, 0);
41
42
43 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VSWITCH_ALLOC, inbuf, sizeof(inbuf),
44 NULL, 0, NULL);
45
46
47 if (rc == -EPROTO) {
48 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 1);
49 rc = efx_mcdi_rpc(efx, MC_CMD_VSWITCH_ALLOC, inbuf,
50 sizeof(inbuf), NULL, 0, NULL);
51 } else if (rc) {
52 efx_mcdi_display_error(efx, MC_CMD_VSWITCH_ALLOC,
53 MC_CMD_VSWITCH_ALLOC_IN_LEN,
54 NULL, 0, rc);
55 }
56 return rc;
57}
58
59static int efx_ef10_vswitch_free(struct efx_nic *efx, unsigned int port_id)
60{
61 MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_FREE_IN_LEN);
62
63 MCDI_SET_DWORD(inbuf, VSWITCH_FREE_IN_UPSTREAM_PORT_ID, port_id);
64
65 return efx_mcdi_rpc(efx, MC_CMD_VSWITCH_FREE, inbuf, sizeof(inbuf),
66 NULL, 0, NULL);
67}
68
69static int efx_ef10_vport_alloc(struct efx_nic *efx,
70 unsigned int port_id_in,
71 unsigned int vport_type,
72 u16 vlan,
73 unsigned int *port_id_out)
74{
75 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ALLOC_IN_LEN);
76 MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_ALLOC_OUT_LEN);
77 size_t outlen;
78 int rc;
79
80 EFX_WARN_ON_PARANOID(!port_id_out);
81
82 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_UPSTREAM_PORT_ID, port_id_in);
83 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_TYPE, vport_type);
84 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_NUM_VLAN_TAGS,
85 (vlan != EFX_EF10_NO_VLAN));
86 MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_FLAGS,
87 VPORT_ALLOC_IN_FLAG_AUTO_PORT, 0);
88 if (vlan != EFX_EF10_NO_VLAN)
89 MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_VLAN_TAGS,
90 VPORT_ALLOC_IN_VLAN_TAG_0, vlan);
91
92 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_ALLOC, inbuf, sizeof(inbuf),
93 outbuf, sizeof(outbuf), &outlen);
94 if (rc)
95 return rc;
96 if (outlen < MC_CMD_VPORT_ALLOC_OUT_LEN)
97 return -EIO;
98
99 *port_id_out = MCDI_DWORD(outbuf, VPORT_ALLOC_OUT_VPORT_ID);
100 return 0;
101}
102
103static int efx_ef10_vport_free(struct efx_nic *efx, unsigned int port_id)
104{
105 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_FREE_IN_LEN);
106
107 MCDI_SET_DWORD(inbuf, VPORT_FREE_IN_VPORT_ID, port_id);
108
109 return efx_mcdi_rpc(efx, MC_CMD_VPORT_FREE, inbuf, sizeof(inbuf),
110 NULL, 0, NULL);
111}
112
113static void efx_ef10_sriov_free_vf_vports(struct efx_nic *efx)
114{
115 struct efx_ef10_nic_data *nic_data = efx->nic_data;
116 int i;
117
118 if (!nic_data->vf)
119 return;
120
121 for (i = 0; i < efx->vf_count; i++) {
122 struct ef10_vf *vf = nic_data->vf + i;
123
124
125 if (vf->pci_dev &&
126 vf->pci_dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
127 continue;
128
129 if (vf->vport_assigned) {
130 efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, i);
131 vf->vport_assigned = 0;
132 }
133
134 if (!is_zero_ether_addr(vf->mac)) {
135 efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac);
136 eth_zero_addr(vf->mac);
137 }
138
139 if (vf->vport_id) {
140 efx_ef10_vport_free(efx, vf->vport_id);
141 vf->vport_id = 0;
142 }
143
144 vf->efx = NULL;
145 }
146}
147
148static void efx_ef10_sriov_free_vf_vswitching(struct efx_nic *efx)
149{
150 struct efx_ef10_nic_data *nic_data = efx->nic_data;
151
152 efx_ef10_sriov_free_vf_vports(efx);
153 kfree(nic_data->vf);
154 nic_data->vf = NULL;
155}
156
157static int efx_ef10_sriov_assign_vf_vport(struct efx_nic *efx,
158 unsigned int vf_i)
159{
160 struct efx_ef10_nic_data *nic_data = efx->nic_data;
161 struct ef10_vf *vf = nic_data->vf + vf_i;
162 int rc;
163
164 if (WARN_ON_ONCE(!nic_data->vf))
165 return -EOPNOTSUPP;
166
167 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
168 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
169 vf->vlan, &vf->vport_id);
170 if (rc)
171 return rc;
172
173 rc = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac);
174 if (rc) {
175 eth_zero_addr(vf->mac);
176 return rc;
177 }
178
179 rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
180 if (rc)
181 return rc;
182
183 vf->vport_assigned = 1;
184 return 0;
185}
186
187static int efx_ef10_sriov_alloc_vf_vswitching(struct efx_nic *efx)
188{
189 struct efx_ef10_nic_data *nic_data = efx->nic_data;
190 unsigned int i;
191 int rc;
192
193 nic_data->vf = kcalloc(efx->vf_count, sizeof(struct ef10_vf),
194 GFP_KERNEL);
195 if (!nic_data->vf)
196 return -ENOMEM;
197
198 for (i = 0; i < efx->vf_count; i++) {
199 eth_random_addr(nic_data->vf[i].mac);
200 nic_data->vf[i].efx = NULL;
201 nic_data->vf[i].vlan = EFX_EF10_NO_VLAN;
202
203 rc = efx_ef10_sriov_assign_vf_vport(efx, i);
204 if (rc)
205 goto fail;
206 }
207
208 return 0;
209fail:
210 efx_ef10_sriov_free_vf_vports(efx);
211 kfree(nic_data->vf);
212 nic_data->vf = NULL;
213 return rc;
214}
215
216static int efx_ef10_sriov_restore_vf_vswitching(struct efx_nic *efx)
217{
218 unsigned int i;
219 int rc;
220
221 for (i = 0; i < efx->vf_count; i++) {
222 rc = efx_ef10_sriov_assign_vf_vport(efx, i);
223 if (rc)
224 goto fail;
225 }
226
227 return 0;
228fail:
229 efx_ef10_sriov_free_vf_vswitching(efx);
230 return rc;
231}
232
233static int efx_ef10_vadaptor_alloc_set_features(struct efx_nic *efx)
234{
235 u32 port_flags;
236 int rc;
237
238 rc = efx_ef10_vadaptor_alloc(efx, efx->vport_id);
239 if (rc)
240 goto fail_vadaptor_alloc;
241
242 rc = efx_ef10_vadaptor_query(efx, efx->vport_id,
243 &port_flags, NULL, NULL);
244 if (rc)
245 goto fail_vadaptor_query;
246
247 if (port_flags &
248 (1 << MC_CMD_VPORT_ALLOC_IN_FLAG_VLAN_RESTRICT_LBN))
249 efx->fixed_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
250 else
251 efx->fixed_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
252
253 return 0;
254
255fail_vadaptor_query:
256 efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
257fail_vadaptor_alloc:
258 return rc;
259}
260
261
262
263
264int efx_ef10_vswitching_probe_pf(struct efx_nic *efx)
265{
266 struct efx_ef10_nic_data *nic_data = efx->nic_data;
267 struct net_device *net_dev = efx->net_dev;
268 int rc;
269
270 if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) {
271
272 efx_ef10_vadaptor_alloc_set_features(efx);
273 return 0;
274 }
275
276 rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED,
277 MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB);
278 if (rc)
279 goto fail1;
280
281 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
282 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
283 EFX_EF10_NO_VLAN, &efx->vport_id);
284 if (rc)
285 goto fail2;
286
287 rc = efx_ef10_vport_add_mac(efx, efx->vport_id, net_dev->dev_addr);
288 if (rc)
289 goto fail3;
290 ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr);
291
292 rc = efx_ef10_vadaptor_alloc_set_features(efx);
293 if (rc)
294 goto fail4;
295
296 return 0;
297fail4:
298 efx_ef10_vport_del_mac(efx, efx->vport_id, nic_data->vport_mac);
299 eth_zero_addr(nic_data->vport_mac);
300fail3:
301 efx_ef10_vport_free(efx, efx->vport_id);
302 efx->vport_id = EVB_PORT_ID_ASSIGNED;
303fail2:
304 efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED);
305fail1:
306 return rc;
307}
308
309int efx_ef10_vswitching_probe_vf(struct efx_nic *efx)
310{
311 return efx_ef10_vadaptor_alloc_set_features(efx);
312}
313
314int efx_ef10_vswitching_restore_pf(struct efx_nic *efx)
315{
316 struct efx_ef10_nic_data *nic_data = efx->nic_data;
317 int rc;
318
319 if (!nic_data->must_probe_vswitching)
320 return 0;
321
322 rc = efx_ef10_vswitching_probe_pf(efx);
323 if (rc)
324 goto fail;
325
326 rc = efx_ef10_sriov_restore_vf_vswitching(efx);
327 if (rc)
328 goto fail;
329
330 nic_data->must_probe_vswitching = false;
331fail:
332 return rc;
333}
334
335int efx_ef10_vswitching_restore_vf(struct efx_nic *efx)
336{
337 struct efx_ef10_nic_data *nic_data = efx->nic_data;
338 int rc;
339
340 if (!nic_data->must_probe_vswitching)
341 return 0;
342
343 rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
344 if (rc)
345 return rc;
346
347 nic_data->must_probe_vswitching = false;
348 return 0;
349}
350
351void efx_ef10_vswitching_remove_pf(struct efx_nic *efx)
352{
353 struct efx_ef10_nic_data *nic_data = efx->nic_data;
354
355 efx_ef10_sriov_free_vf_vswitching(efx);
356
357 efx_ef10_vadaptor_free(efx, efx->vport_id);
358
359 if (efx->vport_id == EVB_PORT_ID_ASSIGNED)
360 return;
361
362 if (!is_zero_ether_addr(nic_data->vport_mac)) {
363 efx_ef10_vport_del_mac(efx, efx->vport_id,
364 efx->net_dev->dev_addr);
365 eth_zero_addr(nic_data->vport_mac);
366 }
367 efx_ef10_vport_free(efx, efx->vport_id);
368 efx->vport_id = EVB_PORT_ID_ASSIGNED;
369
370
371 if (!pci_vfs_assigned(efx->pci_dev))
372 efx_ef10_vswitch_free(efx, efx->vport_id);
373}
374
375void efx_ef10_vswitching_remove_vf(struct efx_nic *efx)
376{
377 efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
378}
379
380static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs)
381{
382 int rc = 0;
383 struct pci_dev *dev = efx->pci_dev;
384
385 efx->vf_count = num_vfs;
386
387 rc = efx_ef10_sriov_alloc_vf_vswitching(efx);
388 if (rc)
389 goto fail1;
390
391 rc = pci_enable_sriov(dev, num_vfs);
392 if (rc)
393 goto fail2;
394
395 return 0;
396fail2:
397 efx_ef10_sriov_free_vf_vswitching(efx);
398fail1:
399 efx->vf_count = 0;
400 netif_err(efx, probe, efx->net_dev,
401 "Failed to enable SRIOV VFs\n");
402 return rc;
403}
404
405
406
407
408
409
410
411static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force)
412{
413 struct pci_dev *dev = efx->pci_dev;
414 unsigned int vfs_assigned = pci_vfs_assigned(dev);
415 int rc = 0;
416
417 if (vfs_assigned && !force) {
418 netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; "
419 "please detach them before disabling SR-IOV\n");
420 return -EBUSY;
421 }
422
423 if (!vfs_assigned)
424 pci_disable_sriov(dev);
425 else
426 rc = -EBUSY;
427
428 efx_ef10_sriov_free_vf_vswitching(efx);
429 efx->vf_count = 0;
430 return rc;
431}
432
433int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs)
434{
435 if (num_vfs == 0)
436 return efx_ef10_pci_sriov_disable(efx, false);
437 else
438 return efx_ef10_pci_sriov_enable(efx, num_vfs);
439}
440
441int efx_ef10_sriov_init(struct efx_nic *efx)
442{
443 return 0;
444}
445
446void efx_ef10_sriov_fini(struct efx_nic *efx)
447{
448 struct efx_ef10_nic_data *nic_data = efx->nic_data;
449 int rc;
450
451 if (!nic_data->vf) {
452
453 if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev))
454 pci_disable_sriov(efx->pci_dev);
455 return;
456 }
457
458
459 rc = efx_ef10_pci_sriov_disable(efx, true);
460 if (rc)
461 netif_dbg(efx, drv, efx->net_dev,
462 "Disabling SRIOV was not successful rc=%d\n", rc);
463 else
464 netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n");
465}
466
467static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id,
468 u8 *mac)
469{
470 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN);
471 MCDI_DECLARE_BUF_ERR(outbuf);
472 size_t outlen;
473 int rc;
474
475 MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id);
476 ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac);
477
478 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf,
479 sizeof(inbuf), outbuf, sizeof(outbuf), &outlen);
480
481 return rc;
482}
483
484int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
485{
486 struct efx_ef10_nic_data *nic_data = efx->nic_data;
487 struct ef10_vf *vf;
488 int rc;
489
490 if (!nic_data->vf)
491 return -EOPNOTSUPP;
492
493 if (vf_i >= efx->vf_count)
494 return -EINVAL;
495 vf = nic_data->vf + vf_i;
496
497 if (vf->efx) {
498 efx_device_detach_sync(vf->efx);
499 efx_net_stop(vf->efx->net_dev);
500
501 down_write(&vf->efx->filter_sem);
502 vf->efx->type->filter_table_remove(vf->efx);
503
504 rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED);
505 if (rc) {
506 up_write(&vf->efx->filter_sem);
507 return rc;
508 }
509 }
510
511 rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i);
512 if (rc)
513 return rc;
514
515 if (!is_zero_ether_addr(vf->mac)) {
516 rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac);
517 if (rc)
518 return rc;
519 }
520
521 if (!is_zero_ether_addr(mac)) {
522 rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac);
523 if (rc)
524 goto fail;
525
526 if (vf->efx)
527 ether_addr_copy(vf->efx->net_dev->dev_addr, mac);
528 }
529
530 ether_addr_copy(vf->mac, mac);
531
532 rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
533 if (rc)
534 goto fail;
535
536 if (vf->efx) {
537
538 rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED);
539 if (rc) {
540 up_write(&vf->efx->filter_sem);
541 return rc;
542 }
543 vf->efx->type->filter_table_probe(vf->efx);
544 up_write(&vf->efx->filter_sem);
545 efx_net_open(vf->efx->net_dev);
546 efx_device_attach_if_not_resetting(vf->efx);
547 }
548
549 return 0;
550
551fail:
552 eth_zero_addr(vf->mac);
553 return rc;
554}
555
556int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan,
557 u8 qos)
558{
559 struct efx_ef10_nic_data *nic_data = efx->nic_data;
560 struct ef10_vf *vf;
561 u16 new_vlan;
562 int rc = 0, rc2 = 0;
563
564 if (vf_i >= efx->vf_count)
565 return -EINVAL;
566 if (qos != 0)
567 return -EINVAL;
568
569 vf = nic_data->vf + vf_i;
570
571 new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan;
572 if (new_vlan == vf->vlan)
573 return 0;
574
575 if (vf->efx) {
576 efx_device_detach_sync(vf->efx);
577 efx_net_stop(vf->efx->net_dev);
578
579 mutex_lock(&vf->efx->mac_lock);
580 down_write(&vf->efx->filter_sem);
581 vf->efx->type->filter_table_remove(vf->efx);
582
583 rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED);
584 if (rc)
585 goto restore_filters;
586 }
587
588 if (vf->vport_assigned) {
589 rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i);
590 if (rc) {
591 netif_warn(efx, drv, efx->net_dev,
592 "Failed to change vlan on VF %d.\n", vf_i);
593 netif_warn(efx, drv, efx->net_dev,
594 "This is likely because the VF is bound to a driver in a VM.\n");
595 netif_warn(efx, drv, efx->net_dev,
596 "Please unload the driver in the VM.\n");
597 goto restore_vadaptor;
598 }
599 vf->vport_assigned = 0;
600 }
601
602 if (!is_zero_ether_addr(vf->mac)) {
603 rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac);
604 if (rc)
605 goto restore_evb_port;
606 }
607
608 if (vf->vport_id) {
609 rc = efx_ef10_vport_free(efx, vf->vport_id);
610 if (rc)
611 goto restore_mac;
612 vf->vport_id = 0;
613 }
614
615
616 vf->vlan = new_vlan;
617
618
619 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
620 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
621 vf->vlan, &vf->vport_id);
622 if (rc)
623 goto reset_nic_up_write;
624
625restore_mac:
626 if (!is_zero_ether_addr(vf->mac)) {
627 rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac);
628 if (rc2) {
629 eth_zero_addr(vf->mac);
630 goto reset_nic_up_write;
631 }
632 }
633
634restore_evb_port:
635 rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
636 if (rc2)
637 goto reset_nic_up_write;
638 else
639 vf->vport_assigned = 1;
640
641restore_vadaptor:
642 if (vf->efx) {
643 rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED);
644 if (rc2)
645 goto reset_nic_up_write;
646 }
647
648restore_filters:
649 if (vf->efx) {
650 rc2 = vf->efx->type->filter_table_probe(vf->efx);
651 if (rc2)
652 goto reset_nic_up_write;
653
654 up_write(&vf->efx->filter_sem);
655 mutex_unlock(&vf->efx->mac_lock);
656
657 rc2 = efx_net_open(vf->efx->net_dev);
658 if (rc2)
659 goto reset_nic;
660
661 efx_device_attach_if_not_resetting(vf->efx);
662 }
663 return rc;
664
665reset_nic_up_write:
666 if (vf->efx) {
667 up_write(&vf->efx->filter_sem);
668 mutex_unlock(&vf->efx->mac_lock);
669 }
670reset_nic:
671 if (vf->efx) {
672 netif_err(efx, drv, efx->net_dev,
673 "Failed to restore VF - scheduling reset.\n");
674 efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH);
675 } else {
676 netif_err(efx, drv, efx->net_dev,
677 "Failed to restore the VF and cannot reset the VF "
678 "- VF is not functional.\n");
679 netif_err(efx, drv, efx->net_dev,
680 "Please reload the driver attached to the VF.\n");
681 }
682
683 return rc ? rc : rc2;
684}
685
686static int efx_ef10_sriov_set_privilege_mask(struct efx_nic *efx, int vf_i,
687 u32 mask, u32 value)
688{
689 MCDI_DECLARE_BUF(pm_outbuf, MC_CMD_PRIVILEGE_MASK_OUT_LEN);
690 MCDI_DECLARE_BUF(pm_inbuf, MC_CMD_PRIVILEGE_MASK_IN_LEN);
691 struct efx_ef10_nic_data *nic_data = efx->nic_data;
692 u32 old_mask, new_mask;
693 size_t outlen;
694 int rc;
695
696 EFX_WARN_ON_PARANOID((value & ~mask) != 0);
697
698
699 MCDI_POPULATE_DWORD_2(pm_inbuf, PRIVILEGE_MASK_IN_FUNCTION,
700 PRIVILEGE_MASK_IN_FUNCTION_PF, nic_data->pf_index,
701 PRIVILEGE_MASK_IN_FUNCTION_VF, vf_i);
702
703 rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK,
704 pm_inbuf, sizeof(pm_inbuf),
705 pm_outbuf, sizeof(pm_outbuf), &outlen);
706
707 if (rc != 0)
708 return rc;
709 if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN)
710 return -EIO;
711
712 old_mask = MCDI_DWORD(pm_outbuf, PRIVILEGE_MASK_OUT_OLD_MASK);
713
714 new_mask = old_mask & ~mask;
715 new_mask |= value;
716
717 if (new_mask == old_mask)
718 return 0;
719
720 new_mask |= MC_CMD_PRIVILEGE_MASK_IN_DO_CHANGE;
721
722
723 MCDI_SET_DWORD(pm_inbuf, PRIVILEGE_MASK_IN_NEW_MASK, new_mask);
724
725 rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK,
726 pm_inbuf, sizeof(pm_inbuf),
727 pm_outbuf, sizeof(pm_outbuf), &outlen);
728
729 if (rc != 0)
730 return rc;
731 if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN)
732 return -EIO;
733
734 return 0;
735}
736
737int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, bool spoofchk)
738{
739 struct efx_ef10_nic_data *nic_data = efx->nic_data;
740
741
742 if (!(nic_data->datapath_caps &
743 BIT(MC_CMD_GET_CAPABILITIES_OUT_TX_MAC_SECURITY_FILTERING_LBN)) &&
744 spoofchk)
745 return -EOPNOTSUPP;
746
747 return efx_ef10_sriov_set_privilege_mask(efx, vf_i,
748 MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX,
749 spoofchk ? 0 : MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX);
750}
751
752int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i,
753 int link_state)
754{
755 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
756 struct efx_ef10_nic_data *nic_data = efx->nic_data;
757
758 BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO !=
759 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO);
760 BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE !=
761 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP);
762 BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE !=
763 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN);
764 MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
765 LINK_STATE_MODE_IN_FUNCTION_PF,
766 nic_data->pf_index,
767 LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
768 MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state);
769 return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
770 NULL, 0, NULL);
771}
772
773int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i,
774 struct ifla_vf_info *ivf)
775{
776 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
777 MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN);
778
779 struct efx_ef10_nic_data *nic_data = efx->nic_data;
780 struct ef10_vf *vf;
781 size_t outlen;
782 int rc;
783
784 if (vf_i >= efx->vf_count)
785 return -EINVAL;
786
787 if (!nic_data->vf)
788 return -EOPNOTSUPP;
789
790 vf = nic_data->vf + vf_i;
791
792 ivf->vf = vf_i;
793 ivf->min_tx_rate = 0;
794 ivf->max_tx_rate = 0;
795 ether_addr_copy(ivf->mac, vf->mac);
796 ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan;
797 ivf->qos = 0;
798
799 MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
800 LINK_STATE_MODE_IN_FUNCTION_PF,
801 nic_data->pf_index,
802 LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
803 MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE,
804 MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE);
805 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
806 outbuf, sizeof(outbuf), &outlen);
807 if (rc)
808 return rc;
809 if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN)
810 return -EIO;
811 ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE);
812
813 return 0;
814}
815
