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UBUNTU: Ubuntu-5.15.0-39.42
[mirror_ubuntu-jammy-kernel.git] / drivers / net / ethernet / sfc / ef10_sriov.c
CommitLineData
d2912cb1 1// SPDX-License-Identifier: GPL-2.0-only
834e23dd
SS		 2/****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2015 Solarflare Communications Inc.
834e23dd 5 */
4b5b1ac5 6#include <linux/etherdevice.h>
834e23dd
SS		 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
3c5eb876
SS		 15static int efx_ef10_evb_port_assign(struct efx_nic *efx, unsigned int port_id,
16 unsigned int vf_fn)
834e23dd 17{
3c5eb876
SS		 18 MCDI_DECLARE_BUF(inbuf, MC_CMD_EVB_PORT_ASSIGN_IN_LEN);
19 struct efx_ef10_nic_data *nic_data = efx->nic_data;
834e23dd 20
3c5eb876
SS		 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);
834e23dd
SS		 28}
29
6d8aaaf6
DP		 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);
2d432f20 34 int rc;
6d8aaaf6
DP		 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);
2d432f20 38 MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 2);
6d8aaaf6
DP		 39 MCDI_POPULATE_DWORD_1(inbuf, VSWITCH_ALLOC_IN_FLAGS,
40 VSWITCH_ALLOC_IN_FLAG_AUTO_PORT, 0);
41
2d432f20
SS		 42 /* Quietly try to allocate 2 VLAN tags */
43 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VSWITCH_ALLOC, inbuf, sizeof(inbuf),
44 NULL, 0, NULL);
45
46 /* If 2 VLAN tags is too many, revert to trying with 1 VLAN tags */
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;
6d8aaaf6
DP		 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,
2d432f20 72 u16 vlan,
6d8aaaf6
DP		 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);
2d432f20
SS		 84 MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_NUM_VLAN_TAGS,
85 (vlan != EFX_EF10_NO_VLAN));
6d8aaaf6
DP		 86 MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_FLAGS,
87 VPORT_ALLOC_IN_FLAG_AUTO_PORT, 0);
2d432f20
SS		 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);
6d8aaaf6
DP		 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
3c5eb876
SS		 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
6598dad2 124 /* If VF is assigned, do not free the vport */
9a022e76 125 if (vf->pci_dev && pci_is_dev_assigned(vf->pci_dev))
6598dad2
DP		 126 continue;
127
3c5eb876
SS		 128 if (vf->vport_assigned) {
129 efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, i);
130 vf->vport_assigned = 0;
131 }
132
133 if (!is_zero_ether_addr(vf->mac)) {
134 efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac);
135 eth_zero_addr(vf->mac);
136 }
137
138 if (vf->vport_id) {
139 efx_ef10_vport_free(efx, vf->vport_id);
140 vf->vport_id = 0;
141 }
f1122a34
SS		 142
143 vf->efx = NULL;
3c5eb876
SS		 144 }
145}
146
147static void efx_ef10_sriov_free_vf_vswitching(struct efx_nic *efx)
148{
149 struct efx_ef10_nic_data *nic_data = efx->nic_data;
150
151 efx_ef10_sriov_free_vf_vports(efx);
152 kfree(nic_data->vf);
153 nic_data->vf = NULL;
154}
155
156static int efx_ef10_sriov_assign_vf_vport(struct efx_nic *efx,
157 unsigned int vf_i)
158{
159 struct efx_ef10_nic_data *nic_data = efx->nic_data;
160 struct ef10_vf *vf = nic_data->vf + vf_i;
161 int rc;
162
163 if (WARN_ON_ONCE(!nic_data->vf))
164 return -EOPNOTSUPP;
165
166 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
167 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
2d432f20 168 vf->vlan, &vf->vport_id);
3c5eb876
SS		 169 if (rc)
170 return rc;
171
172 rc = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac);
173 if (rc) {
174 eth_zero_addr(vf->mac);
175 return rc;
176 }
177
178 rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
179 if (rc)
180 return rc;
181
182 vf->vport_assigned = 1;
183 return 0;
184}
185
186static int efx_ef10_sriov_alloc_vf_vswitching(struct efx_nic *efx)
187{
188 struct efx_ef10_nic_data *nic_data = efx->nic_data;
189 unsigned int i;
190 int rc;
191
192 nic_data->vf = kcalloc(efx->vf_count, sizeof(struct ef10_vf),
193 GFP_KERNEL);
194 if (!nic_data->vf)
195 return -ENOMEM;
196
197 for (i = 0; i < efx->vf_count; i++) {
6c1f0a1f 198 eth_random_addr(nic_data->vf[i].mac);
f1122a34 199 nic_data->vf[i].efx = NULL;
2d432f20 200 nic_data->vf[i].vlan = EFX_EF10_NO_VLAN;
3c5eb876
SS		 201
202 rc = efx_ef10_sriov_assign_vf_vport(efx, i);
203 if (rc)
204 goto fail;
205 }
206
207 return 0;
208fail:
3ddd6e2f 209 efx_ef10_sriov_free_vf_vswitching(efx);
3c5eb876
SS		 210 return rc;
211}
212
213static int efx_ef10_sriov_restore_vf_vswitching(struct efx_nic *efx)
214{
215 unsigned int i;
216 int rc;
217
218 for (i = 0; i < efx->vf_count; i++) {
219 rc = efx_ef10_sriov_assign_vf_vport(efx, i);
220 if (rc)
221 goto fail;
222 }
223
224 return 0;
225fail:
226 efx_ef10_sriov_free_vf_vswitching(efx);
227 return rc;
228}
229
38d27f38
AR		 230static int efx_ef10_vadaptor_alloc_set_features(struct efx_nic *efx)
231{
38d27f38
AR		 232 u32 port_flags;
233 int rc;
234
dfcabb07 235 rc = efx_ef10_vadaptor_alloc(efx, efx->vport_id);
38d27f38
AR		 236 if (rc)
237 goto fail_vadaptor_alloc;
238
dfcabb07 239 rc = efx_ef10_vadaptor_query(efx, efx->vport_id,
38d27f38
AR		 240 &port_flags, NULL, NULL);
241 if (rc)
242 goto fail_vadaptor_query;
243
244 if (port_flags &
245 (1 << MC_CMD_VPORT_ALLOC_IN_FLAG_VLAN_RESTRICT_LBN))
246 efx->fixed_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
247 else
248 efx->fixed_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
249
250 return 0;
251
252fail_vadaptor_query:
253 efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
254fail_vadaptor_alloc:
255 return rc;
256}
257
6d8aaaf6
DP		 258/* On top of the default firmware vswitch setup, create a VEB vswitch and
259 * expansion vport for use by this function.
260 */
7b8c7b54 261int efx_ef10_vswitching_probe_pf(struct efx_nic *efx)
6d8aaaf6
DP		 262{
263 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3c5eb876 264 struct net_device *net_dev = efx->net_dev;
6d8aaaf6
DP		 265 int rc;
266
7b8c7b54
SS		 267 if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) {
268 /* vswitch not needed as we have no VFs */
38d27f38 269 efx_ef10_vadaptor_alloc_set_features(efx);
7b8c7b54
SS		 270 return 0;
271 }
6d8aaaf6
DP		 272
273 rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED,
274 MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB);
275 if (rc)
276 goto fail1;
277
278 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
279 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
dfcabb07 280 EFX_EF10_NO_VLAN, &efx->vport_id);
6d8aaaf6
DP		 281 if (rc)
282 goto fail2;
283
dfcabb07 284 rc = efx_ef10_vport_add_mac(efx, efx->vport_id, net_dev->dev_addr);
3c5eb876
SS		 285 if (rc)
286 goto fail3;
3c5eb876
SS		 287 ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr);
288
38d27f38 289 rc = efx_ef10_vadaptor_alloc_set_features(efx);
7b8c7b54
SS		 290 if (rc)
291 goto fail4;
292
6d8aaaf6 293 return 0;
7b8c7b54 294fail4:
dfcabb07 295 efx_ef10_vport_del_mac(efx, efx->vport_id, nic_data->vport_mac);
7b8c7b54 296 eth_zero_addr(nic_data->vport_mac);
3c5eb876 297fail3:
dfcabb07
EC		 298 efx_ef10_vport_free(efx, efx->vport_id);
299 efx->vport_id = EVB_PORT_ID_ASSIGNED;
6d8aaaf6
DP		 300fail2:
301 efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED);
302fail1:
303 return rc;
304}
305
7b8c7b54
SS		 306int efx_ef10_vswitching_probe_vf(struct efx_nic *efx)
307{
38d27f38 308 return efx_ef10_vadaptor_alloc_set_features(efx);
7b8c7b54
SS		 309}
310
311int efx_ef10_vswitching_restore_pf(struct efx_nic *efx)
6d8aaaf6
DP		 312{
313 struct efx_ef10_nic_data *nic_data = efx->nic_data;
314 int rc;
315
316 if (!nic_data->must_probe_vswitching)
317 return 0;
318
7b8c7b54 319 rc = efx_ef10_vswitching_probe_pf(efx);
3c5eb876
SS		 320 if (rc)
321 goto fail;
322
323 rc = efx_ef10_sriov_restore_vf_vswitching(efx);
324 if (rc)
325 goto fail;
6d8aaaf6 326
3c5eb876
SS		 327 nic_data->must_probe_vswitching = false;
328fail:
6d8aaaf6
DP		 329 return rc;
330}
331
7b8c7b54
SS		 332int efx_ef10_vswitching_restore_vf(struct efx_nic *efx)
333{
334 struct efx_ef10_nic_data *nic_data = efx->nic_data;
335 int rc;
336
337 if (!nic_data->must_probe_vswitching)
338 return 0;
339
340 rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
341 if (rc)
342 return rc;
343
344 nic_data->must_probe_vswitching = false;
345 return 0;
346}
347
348void efx_ef10_vswitching_remove_pf(struct efx_nic *efx)
6d8aaaf6
DP		 349{
350 struct efx_ef10_nic_data *nic_data = efx->nic_data;
351
3c5eb876
SS		 352 efx_ef10_sriov_free_vf_vswitching(efx);
353
dfcabb07 354 efx_ef10_vadaptor_free(efx, efx->vport_id);
7b8c7b54 355
dfcabb07 356 if (efx->vport_id == EVB_PORT_ID_ASSIGNED)
6d8aaaf6
DP		 357 return; /* No vswitch was ever created */
358
3c5eb876 359 if (!is_zero_ether_addr(nic_data->vport_mac)) {
dfcabb07 360 efx_ef10_vport_del_mac(efx, efx->vport_id,
3c5eb876
SS		 361 efx->net_dev->dev_addr);
362 eth_zero_addr(nic_data->vport_mac);
363 }
dfcabb07
EC		 364 efx_ef10_vport_free(efx, efx->vport_id);
365 efx->vport_id = EVB_PORT_ID_ASSIGNED;
6d8aaaf6 366
6598dad2
DP		 367 /* Only free the vswitch if no VFs are assigned */
368 if (!pci_vfs_assigned(efx->pci_dev))
dfcabb07 369 efx_ef10_vswitch_free(efx, efx->vport_id);
6d8aaaf6 370}
3c5eb876 371
7b8c7b54
SS		 372void efx_ef10_vswitching_remove_vf(struct efx_nic *efx)
373{
374 efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
375}
376
3c5eb876
SS		 377static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs)
378{
379 int rc = 0;
380 struct pci_dev *dev = efx->pci_dev;
381
382 efx->vf_count = num_vfs;
383
384 rc = efx_ef10_sriov_alloc_vf_vswitching(efx);
385 if (rc)
386 goto fail1;
387
388 rc = pci_enable_sriov(dev, num_vfs);
389 if (rc)
390 goto fail2;
391
392 return 0;
393fail2:
394 efx_ef10_sriov_free_vf_vswitching(efx);
395fail1:
396 efx->vf_count = 0;
397 netif_err(efx, probe, efx->net_dev,
398 "Failed to enable SRIOV VFs\n");
399 return rc;
400}
401
1ebe4feb
ÍH		 402/* Disable SRIOV and remove VFs
403 * If some VFs are attached to a guest (using Xen, only) nothing is
404 * done if force=false, and vports are freed if force=true (for the non
405 * attachedc ones, only) but SRIOV is not disabled and VFs are not
406 * removed in either case.
407 */
6598dad2 408static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force)
3c5eb876
SS		 409{
410 struct pci_dev *dev = efx->pci_dev;
1ebe4feb
ÍH		 411 unsigned int vfs_assigned = pci_vfs_assigned(dev);
412 int rc = 0;
71158bf2 413
6598dad2
DP		 414 if (vfs_assigned && !force) {
415 netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; "
416 "please detach them before disabling SR-IOV\n");
71158bf2
DP		 417 return -EBUSY;
418 }
419
6598dad2
DP		 420 if (!vfs_assigned)
421 pci_disable_sriov(dev);
1ebe4feb
ÍH		 422 else
423 rc = -EBUSY;
6598dad2 424
3c5eb876
SS		 425 efx_ef10_sriov_free_vf_vswitching(efx);
426 efx->vf_count = 0;
1ebe4feb 427 return rc;
3c5eb876
SS		 428}
429
430int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs)
431{
432 if (num_vfs == 0)
6598dad2 433 return efx_ef10_pci_sriov_disable(efx, false);
3c5eb876
SS		 434 else
435 return efx_ef10_pci_sriov_enable(efx, num_vfs);
436}
437
438int efx_ef10_sriov_init(struct efx_nic *efx)
439{
440 return 0;
441}
442
443void efx_ef10_sriov_fini(struct efx_nic *efx)
444{
445 struct efx_ef10_nic_data *nic_data = efx->nic_data;
446 int rc;
447
6598dad2 448 if (!nic_data->vf) {
9a022e76
ÍH		 449 /* Remove any un-assigned orphaned VFs. This can happen if the PF driver
450 * was unloaded while any VF was assigned to a guest (using Xen, only).
451 */
6598dad2
DP		 452 if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev))
453 pci_disable_sriov(efx->pci_dev);
3c5eb876 454 return;
6598dad2 455 }
3c5eb876 456
45423cff 457 /* Disable SRIOV and remove any VFs in the host */
6598dad2 458 rc = efx_ef10_pci_sriov_disable(efx, true);
3c5eb876
SS		 459 if (rc)
460 netif_dbg(efx, drv, efx->net_dev,
461 "Disabling SRIOV was not successful rc=%d\n", rc);
462 else
463 netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n");
464}
e340be92
SS		 465
466static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id,
467 u8 *mac)
468{
469 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN);
470 MCDI_DECLARE_BUF_ERR(outbuf);
471 size_t outlen;
472 int rc;
473
474 MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id);
475 ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac);
476
477 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf,
478 sizeof(inbuf), outbuf, sizeof(outbuf), &outlen);
479
480 return rc;
481}
482
483int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
484{
485 struct efx_ef10_nic_data *nic_data = efx->nic_data;
486 struct ef10_vf *vf;
487 int rc;
488
489 if (!nic_data->vf)
490 return -EOPNOTSUPP;
491
492 if (vf_i >= efx->vf_count)
493 return -EINVAL;
494 vf = nic_data->vf + vf_i;
495
496 if (vf->efx) {
497 efx_device_detach_sync(vf->efx);
498 efx_net_stop(vf->efx->net_dev);
499
500 down_write(&vf->efx->filter_sem);
501 vf->efx->type->filter_table_remove(vf->efx);
502
503 rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED);
504 if (rc) {
505 up_write(&vf->efx->filter_sem);
506 return rc;
507 }
508 }
509
510 rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i);
511 if (rc)
512 return rc;
513
514 if (!is_zero_ether_addr(vf->mac)) {
515 rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac);
516 if (rc)
517 return rc;
518 }
519
520 if (!is_zero_ether_addr(mac)) {
521 rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac);
db99d512 522 if (rc)
e340be92 523 goto fail;
db99d512 524
e340be92
SS		 525 if (vf->efx)
526 ether_addr_copy(vf->efx->net_dev->dev_addr, mac);
527 }
528
529 ether_addr_copy(vf->mac, mac);
530
531 rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
532 if (rc)
533 goto fail;
534
535 if (vf->efx) {
536 /* VF cannot use the vport_id that the PF created */
537 rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED);
538 if (rc) {
539 up_write(&vf->efx->filter_sem);
540 return rc;
541 }
542 vf->efx->type->filter_table_probe(vf->efx);
543 up_write(&vf->efx->filter_sem);
544 efx_net_open(vf->efx->net_dev);
9c568fd8 545 efx_device_attach_if_not_resetting(vf->efx);
e340be92
SS		 546 }
547
548 return 0;
549
550fail:
4b5b1ac5 551 eth_zero_addr(vf->mac);
e340be92
SS		 552 return rc;
553}
b9af9049 554
2d432f20
SS		 555int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan,
556 u8 qos)
557{
558 struct efx_ef10_nic_data *nic_data = efx->nic_data;
559 struct ef10_vf *vf;
2e6dde5c 560 u16 new_vlan;
2d432f20
SS		 561 int rc = 0, rc2 = 0;
562
563 if (vf_i >= efx->vf_count)
564 return -EINVAL;
565 if (qos != 0)
566 return -EINVAL;
567
568 vf = nic_data->vf + vf_i;
569
570 new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan;
571 if (new_vlan == vf->vlan)
572 return 0;
573
574 if (vf->efx) {
575 efx_device_detach_sync(vf->efx);
576 efx_net_stop(vf->efx->net_dev);
577
d248953a 578 mutex_lock(&vf->efx->mac_lock);
2d432f20
SS		 579 down_write(&vf->efx->filter_sem);
580 vf->efx->type->filter_table_remove(vf->efx);
581
582 rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED);
583 if (rc)
584 goto restore_filters;
585 }
586
587 if (vf->vport_assigned) {
588 rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i);
589 if (rc) {
590 netif_warn(efx, drv, efx->net_dev,
591 "Failed to change vlan on VF %d.\n", vf_i);
592 netif_warn(efx, drv, efx->net_dev,
593 "This is likely because the VF is bound to a driver in a VM.\n");
594 netif_warn(efx, drv, efx->net_dev,
595 "Please unload the driver in the VM.\n");
596 goto restore_vadaptor;
597 }
598 vf->vport_assigned = 0;
599 }
600
601 if (!is_zero_ether_addr(vf->mac)) {
602 rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac);
603 if (rc)
604 goto restore_evb_port;
605 }
606
607 if (vf->vport_id) {
608 rc = efx_ef10_vport_free(efx, vf->vport_id);
609 if (rc)
610 goto restore_mac;
611 vf->vport_id = 0;
612 }
613
614 /* Do the actual vlan change */
2d432f20
SS		 615 vf->vlan = new_vlan;
616
617 /* Restore everything in reverse order */
618 rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
619 MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
620 vf->vlan, &vf->vport_id);
621 if (rc)
671b53ee 622 goto reset_nic_up_write;
2d432f20
SS		 623
624restore_mac:
625 if (!is_zero_ether_addr(vf->mac)) {
626 rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac);
627 if (rc2) {
628 eth_zero_addr(vf->mac);
671b53ee 629 goto reset_nic_up_write;
2d432f20
SS		 630 }
631 }
632
633restore_evb_port:
634 rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
635 if (rc2)
671b53ee 636 goto reset_nic_up_write;
2d432f20
SS		 637 else
638 vf->vport_assigned = 1;
639
640restore_vadaptor:
641 if (vf->efx) {
642 rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED);
643 if (rc2)
671b53ee 644 goto reset_nic_up_write;
2d432f20
SS		 645 }
646
647restore_filters:
648 if (vf->efx) {
649 rc2 = vf->efx->type->filter_table_probe(vf->efx);
650 if (rc2)
671b53ee
SS		 651 goto reset_nic_up_write;
652
653 up_write(&vf->efx->filter_sem);
d248953a 654 mutex_unlock(&vf->efx->mac_lock);
2d432f20 655
2d432f20
SS		 656 rc2 = efx_net_open(vf->efx->net_dev);
657 if (rc2)
658 goto reset_nic;
659
9c568fd8 660 efx_device_attach_if_not_resetting(vf->efx);
2d432f20
SS		 661 }
662 return rc;
663
671b53ee 664reset_nic_up_write:
d248953a 665 if (vf->efx) {
671b53ee 666 up_write(&vf->efx->filter_sem);
d248953a
MH		 667 mutex_unlock(&vf->efx->mac_lock);
668 }
2d432f20
SS		 669reset_nic:
670 if (vf->efx) {
2d432f20
SS		 671 netif_err(efx, drv, efx->net_dev,
672 "Failed to restore VF - scheduling reset.\n");
673 efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH);
674 } else {
675 netif_err(efx, drv, efx->net_dev,
676 "Failed to restore the VF and cannot reset the VF "
677 "- VF is not functional.\n");
678 netif_err(efx, drv, efx->net_dev,
679 "Please reload the driver attached to the VF.\n");
680 }
681
682 return rc ? rc : rc2;
683}
684
085793f0
EC		 685static int efx_ef10_sriov_set_privilege_mask(struct efx_nic *efx, int vf_i,
686 u32 mask, u32 value)
860d2ffa 687{
085793f0
EC		 688 MCDI_DECLARE_BUF(pm_outbuf, MC_CMD_PRIVILEGE_MASK_OUT_LEN);
689 MCDI_DECLARE_BUF(pm_inbuf, MC_CMD_PRIVILEGE_MASK_IN_LEN);
690 struct efx_ef10_nic_data *nic_data = efx->nic_data;
691 u32 old_mask, new_mask;
692 size_t outlen;
693 int rc;
694
695 EFX_WARN_ON_PARANOID((value & ~mask) != 0);
696
697 /* Get privilege mask */
698 MCDI_POPULATE_DWORD_2(pm_inbuf, PRIVILEGE_MASK_IN_FUNCTION,
699 PRIVILEGE_MASK_IN_FUNCTION_PF, nic_data->pf_index,
700 PRIVILEGE_MASK_IN_FUNCTION_VF, vf_i);
701
702 rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK,
703 pm_inbuf, sizeof(pm_inbuf),
704 pm_outbuf, sizeof(pm_outbuf), &outlen);
705
706 if (rc != 0)
707 return rc;
708 if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN)
709 return -EIO;
710
711 old_mask = MCDI_DWORD(pm_outbuf, PRIVILEGE_MASK_OUT_OLD_MASK);
712
713 new_mask = old_mask & ~mask;
714 new_mask |= value;
715
716 if (new_mask == old_mask)
717 return 0;
718
719 new_mask |= MC_CMD_PRIVILEGE_MASK_IN_DO_CHANGE;
720
721 /* Set privilege mask */
722 MCDI_SET_DWORD(pm_inbuf, PRIVILEGE_MASK_IN_NEW_MASK, new_mask);
723
724 rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK,
725 pm_inbuf, sizeof(pm_inbuf),
726 pm_outbuf, sizeof(pm_outbuf), &outlen);
727
728 if (rc != 0)
729 return rc;
730 if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN)
731 return -EIO;
732
733 return 0;
734}
735
736int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, bool spoofchk)
737{
738 struct efx_ef10_nic_data *nic_data = efx->nic_data;
739
740 /* Can't enable spoofchk if firmware doesn't support it. */
741 if (!(nic_data->datapath_caps &
742 BIT(MC_CMD_GET_CAPABILITIES_OUT_TX_MAC_SECURITY_FILTERING_LBN)) &&
743 spoofchk)
744 return -EOPNOTSUPP;
745
746 return efx_ef10_sriov_set_privilege_mask(efx, vf_i,
747 MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX,
748 spoofchk ? 0 : MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX);
860d2ffa
SS		 749}
750
4392dc69
EC		 751int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i,
752 int link_state)
753{
754 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
755 struct efx_ef10_nic_data *nic_data = efx->nic_data;
756
757 BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO !=
758 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO);
759 BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE !=
760 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP);
761 BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE !=
762 MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN);
763 MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
764 LINK_STATE_MODE_IN_FUNCTION_PF,
765 nic_data->pf_index,
766 LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
767 MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state);
768 return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
769 NULL, 0, NULL); /* don't care what old mode was */
770}
771
b9af9049
SS		 772int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i,
773 struct ifla_vf_info *ivf)
774{
4392dc69
EC		 775 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
776 MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN);
777
b9af9049
SS		 778 struct efx_ef10_nic_data *nic_data = efx->nic_data;
779 struct ef10_vf *vf;
4392dc69
EC		 780 size_t outlen;
781 int rc;
b9af9049
SS		 782
783 if (vf_i >= efx->vf_count)
784 return -EINVAL;
785
786 if (!nic_data->vf)
787 return -EOPNOTSUPP;
788
789 vf = nic_data->vf + vf_i;
790
791 ivf->vf = vf_i;
792 ivf->min_tx_rate = 0;
793 ivf->max_tx_rate = 0;
794 ether_addr_copy(ivf->mac, vf->mac);
2d432f20 795 ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan;
b9af9049
SS		 796 ivf->qos = 0;
797
4392dc69
EC		 798 MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
799 LINK_STATE_MODE_IN_FUNCTION_PF,
800 nic_data->pf_index,
801 LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
802 MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE,
803 MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE);
804 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
805 outbuf, sizeof(outbuf), &outlen);
806 if (rc)
807 return rc;
808 if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN)
809 return -EIO;
810 ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE);
811
b9af9049
SS		 812 return 0;
813}
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