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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 |
15 | static 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 |
30 | static 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 | ||
59 | static 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 | ||
69 | static 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 | ||
103 | static 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 |
113 | static 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 DP |
124 | /* If VF is assigned, do not free the vport */ |
125 | if (vf->pci_dev && | |
126 | vf->pci_dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) | |
127 | continue; | |
128 | ||
3c5eb876 SS |
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 | } | |
f1122a34 SS |
143 | |
144 | vf->efx = NULL; | |
3c5eb876 SS |
145 | } |
146 | } | |
147 | ||
148 | static 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 | ||
157 | static 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, | |
2d432f20 | 169 | vf->vlan, &vf->vport_id); |
3c5eb876 SS |
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 | ||
187 | static 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++) { | |
6c1f0a1f | 199 | eth_random_addr(nic_data->vf[i].mac); |
f1122a34 | 200 | nic_data->vf[i].efx = NULL; |
2d432f20 | 201 | nic_data->vf[i].vlan = EFX_EF10_NO_VLAN; |
3c5eb876 SS |
202 | |
203 | rc = efx_ef10_sriov_assign_vf_vport(efx, i); | |
204 | if (rc) | |
205 | goto fail; | |
206 | } | |
207 | ||
208 | return 0; | |
209 | fail: | |
210 | efx_ef10_sriov_free_vf_vports(efx); | |
211 | kfree(nic_data->vf); | |
212 | nic_data->vf = NULL; | |
213 | return rc; | |
214 | } | |
215 | ||
216 | static 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; | |
228 | fail: | |
229 | efx_ef10_sriov_free_vf_vswitching(efx); | |
230 | return rc; | |
231 | } | |
232 | ||
38d27f38 AR |
233 | static int efx_ef10_vadaptor_alloc_set_features(struct efx_nic *efx) |
234 | { | |
235 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
236 | u32 port_flags; | |
237 | int rc; | |
238 | ||
239 | rc = efx_ef10_vadaptor_alloc(efx, nic_data->vport_id); | |
240 | if (rc) | |
241 | goto fail_vadaptor_alloc; | |
242 | ||
243 | rc = efx_ef10_vadaptor_query(efx, nic_data->vport_id, | |
244 | &port_flags, NULL, NULL); | |
245 | if (rc) | |
246 | goto fail_vadaptor_query; | |
247 | ||
248 | if (port_flags & | |
249 | (1 << MC_CMD_VPORT_ALLOC_IN_FLAG_VLAN_RESTRICT_LBN)) | |
250 | efx->fixed_features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
251 | else | |
252 | efx->fixed_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; | |
253 | ||
254 | return 0; | |
255 | ||
256 | fail_vadaptor_query: | |
257 | efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); | |
258 | fail_vadaptor_alloc: | |
259 | return rc; | |
260 | } | |
261 | ||
6d8aaaf6 DP |
262 | /* On top of the default firmware vswitch setup, create a VEB vswitch and |
263 | * expansion vport for use by this function. | |
264 | */ | |
7b8c7b54 | 265 | int efx_ef10_vswitching_probe_pf(struct efx_nic *efx) |
6d8aaaf6 DP |
266 | { |
267 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
3c5eb876 | 268 | struct net_device *net_dev = efx->net_dev; |
6d8aaaf6 DP |
269 | int rc; |
270 | ||
7b8c7b54 SS |
271 | if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) { |
272 | /* vswitch not needed as we have no VFs */ | |
38d27f38 | 273 | efx_ef10_vadaptor_alloc_set_features(efx); |
7b8c7b54 SS |
274 | return 0; |
275 | } | |
6d8aaaf6 DP |
276 | |
277 | rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
278 | MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB); | |
279 | if (rc) | |
280 | goto fail1; | |
281 | ||
282 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
283 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, | |
2d432f20 | 284 | EFX_EF10_NO_VLAN, &nic_data->vport_id); |
6d8aaaf6 DP |
285 | if (rc) |
286 | goto fail2; | |
287 | ||
3c5eb876 SS |
288 | rc = efx_ef10_vport_add_mac(efx, nic_data->vport_id, net_dev->dev_addr); |
289 | if (rc) | |
290 | goto fail3; | |
3c5eb876 SS |
291 | ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr); |
292 | ||
38d27f38 | 293 | rc = efx_ef10_vadaptor_alloc_set_features(efx); |
7b8c7b54 SS |
294 | if (rc) |
295 | goto fail4; | |
296 | ||
6d8aaaf6 | 297 | return 0; |
7b8c7b54 SS |
298 | fail4: |
299 | efx_ef10_vport_del_mac(efx, nic_data->vport_id, nic_data->vport_mac); | |
300 | eth_zero_addr(nic_data->vport_mac); | |
3c5eb876 SS |
301 | fail3: |
302 | efx_ef10_vport_free(efx, nic_data->vport_id); | |
303 | nic_data->vport_id = EVB_PORT_ID_ASSIGNED; | |
6d8aaaf6 DP |
304 | fail2: |
305 | efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED); | |
306 | fail1: | |
307 | return rc; | |
308 | } | |
309 | ||
7b8c7b54 SS |
310 | int efx_ef10_vswitching_probe_vf(struct efx_nic *efx) |
311 | { | |
38d27f38 | 312 | return efx_ef10_vadaptor_alloc_set_features(efx); |
7b8c7b54 SS |
313 | } |
314 | ||
315 | int efx_ef10_vswitching_restore_pf(struct efx_nic *efx) | |
6d8aaaf6 DP |
316 | { |
317 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
318 | int rc; | |
319 | ||
320 | if (!nic_data->must_probe_vswitching) | |
321 | return 0; | |
322 | ||
7b8c7b54 | 323 | rc = efx_ef10_vswitching_probe_pf(efx); |
3c5eb876 SS |
324 | if (rc) |
325 | goto fail; | |
326 | ||
327 | rc = efx_ef10_sriov_restore_vf_vswitching(efx); | |
328 | if (rc) | |
329 | goto fail; | |
6d8aaaf6 | 330 | |
3c5eb876 SS |
331 | nic_data->must_probe_vswitching = false; |
332 | fail: | |
6d8aaaf6 DP |
333 | return rc; |
334 | } | |
335 | ||
7b8c7b54 SS |
336 | int efx_ef10_vswitching_restore_vf(struct efx_nic *efx) |
337 | { | |
338 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
339 | int rc; | |
340 | ||
341 | if (!nic_data->must_probe_vswitching) | |
342 | return 0; | |
343 | ||
344 | rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); | |
345 | if (rc) | |
346 | return rc; | |
347 | ||
348 | nic_data->must_probe_vswitching = false; | |
349 | return 0; | |
350 | } | |
351 | ||
352 | void efx_ef10_vswitching_remove_pf(struct efx_nic *efx) | |
6d8aaaf6 DP |
353 | { |
354 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
355 | ||
3c5eb876 SS |
356 | efx_ef10_sriov_free_vf_vswitching(efx); |
357 | ||
7b8c7b54 SS |
358 | efx_ef10_vadaptor_free(efx, nic_data->vport_id); |
359 | ||
6d8aaaf6 DP |
360 | if (nic_data->vport_id == EVB_PORT_ID_ASSIGNED) |
361 | return; /* No vswitch was ever created */ | |
362 | ||
3c5eb876 SS |
363 | if (!is_zero_ether_addr(nic_data->vport_mac)) { |
364 | efx_ef10_vport_del_mac(efx, nic_data->vport_id, | |
365 | efx->net_dev->dev_addr); | |
366 | eth_zero_addr(nic_data->vport_mac); | |
367 | } | |
6d8aaaf6 DP |
368 | efx_ef10_vport_free(efx, nic_data->vport_id); |
369 | nic_data->vport_id = EVB_PORT_ID_ASSIGNED; | |
370 | ||
6598dad2 DP |
371 | /* Only free the vswitch if no VFs are assigned */ |
372 | if (!pci_vfs_assigned(efx->pci_dev)) | |
373 | efx_ef10_vswitch_free(efx, nic_data->vport_id); | |
6d8aaaf6 | 374 | } |
3c5eb876 | 375 | |
7b8c7b54 SS |
376 | void efx_ef10_vswitching_remove_vf(struct efx_nic *efx) |
377 | { | |
378 | efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); | |
379 | } | |
380 | ||
3c5eb876 SS |
381 | static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs) |
382 | { | |
383 | int rc = 0; | |
384 | struct pci_dev *dev = efx->pci_dev; | |
385 | ||
386 | efx->vf_count = num_vfs; | |
387 | ||
388 | rc = efx_ef10_sriov_alloc_vf_vswitching(efx); | |
389 | if (rc) | |
390 | goto fail1; | |
391 | ||
392 | rc = pci_enable_sriov(dev, num_vfs); | |
393 | if (rc) | |
394 | goto fail2; | |
395 | ||
396 | return 0; | |
397 | fail2: | |
398 | efx_ef10_sriov_free_vf_vswitching(efx); | |
399 | fail1: | |
400 | efx->vf_count = 0; | |
401 | netif_err(efx, probe, efx->net_dev, | |
402 | "Failed to enable SRIOV VFs\n"); | |
403 | return rc; | |
404 | } | |
405 | ||
6598dad2 | 406 | static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force) |
3c5eb876 SS |
407 | { |
408 | struct pci_dev *dev = efx->pci_dev; | |
6598dad2 | 409 | unsigned int vfs_assigned = 0; |
3c5eb876 | 410 | |
6598dad2 | 411 | vfs_assigned = pci_vfs_assigned(dev); |
71158bf2 | 412 | |
6598dad2 DP |
413 | if (vfs_assigned && !force) { |
414 | netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; " | |
415 | "please detach them before disabling SR-IOV\n"); | |
71158bf2 DP |
416 | return -EBUSY; |
417 | } | |
418 | ||
6598dad2 DP |
419 | if (!vfs_assigned) |
420 | pci_disable_sriov(dev); | |
421 | ||
3c5eb876 SS |
422 | efx_ef10_sriov_free_vf_vswitching(efx); |
423 | efx->vf_count = 0; | |
424 | return 0; | |
425 | } | |
426 | ||
427 | int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs) | |
428 | { | |
429 | if (num_vfs == 0) | |
6598dad2 | 430 | return efx_ef10_pci_sriov_disable(efx, false); |
3c5eb876 SS |
431 | else |
432 | return efx_ef10_pci_sriov_enable(efx, num_vfs); | |
433 | } | |
434 | ||
435 | int efx_ef10_sriov_init(struct efx_nic *efx) | |
436 | { | |
437 | return 0; | |
438 | } | |
439 | ||
440 | void efx_ef10_sriov_fini(struct efx_nic *efx) | |
441 | { | |
442 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
2a3fc311 | 443 | unsigned int i; |
3c5eb876 SS |
444 | int rc; |
445 | ||
6598dad2 DP |
446 | if (!nic_data->vf) { |
447 | /* Remove any un-assigned orphaned VFs */ | |
448 | if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev)) | |
449 | pci_disable_sriov(efx->pci_dev); | |
3c5eb876 | 450 | return; |
6598dad2 | 451 | } |
3c5eb876 | 452 | |
2a3fc311 DP |
453 | /* Remove any VFs in the host */ |
454 | for (i = 0; i < efx->vf_count; ++i) { | |
455 | struct efx_nic *vf_efx = nic_data->vf[i].efx; | |
456 | ||
457 | if (vf_efx) | |
458 | vf_efx->pci_dev->driver->remove(vf_efx->pci_dev); | |
459 | } | |
460 | ||
6598dad2 | 461 | rc = efx_ef10_pci_sriov_disable(efx, true); |
3c5eb876 SS |
462 | if (rc) |
463 | netif_dbg(efx, drv, efx->net_dev, | |
464 | "Disabling SRIOV was not successful rc=%d\n", rc); | |
465 | else | |
466 | netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n"); | |
467 | } | |
e340be92 SS |
468 | |
469 | static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id, | |
470 | u8 *mac) | |
471 | { | |
472 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN); | |
473 | MCDI_DECLARE_BUF_ERR(outbuf); | |
474 | size_t outlen; | |
475 | int rc; | |
476 | ||
477 | MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id); | |
478 | ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac); | |
479 | ||
480 | rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf, | |
481 | sizeof(inbuf), outbuf, sizeof(outbuf), &outlen); | |
482 | ||
483 | return rc; | |
484 | } | |
485 | ||
486 | int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac) | |
487 | { | |
488 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
489 | struct ef10_vf *vf; | |
490 | int rc; | |
491 | ||
492 | if (!nic_data->vf) | |
493 | return -EOPNOTSUPP; | |
494 | ||
495 | if (vf_i >= efx->vf_count) | |
496 | return -EINVAL; | |
497 | vf = nic_data->vf + vf_i; | |
498 | ||
499 | if (vf->efx) { | |
500 | efx_device_detach_sync(vf->efx); | |
501 | efx_net_stop(vf->efx->net_dev); | |
502 | ||
503 | down_write(&vf->efx->filter_sem); | |
504 | vf->efx->type->filter_table_remove(vf->efx); | |
505 | ||
506 | rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); | |
507 | if (rc) { | |
508 | up_write(&vf->efx->filter_sem); | |
509 | return rc; | |
510 | } | |
511 | } | |
512 | ||
513 | rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); | |
514 | if (rc) | |
515 | return rc; | |
516 | ||
517 | if (!is_zero_ether_addr(vf->mac)) { | |
518 | rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac); | |
519 | if (rc) | |
520 | return rc; | |
521 | } | |
522 | ||
523 | if (!is_zero_ether_addr(mac)) { | |
524 | rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac); | |
525 | if (rc) { | |
526 | eth_zero_addr(vf->mac); | |
527 | goto fail; | |
528 | } | |
529 | if (vf->efx) | |
530 | ether_addr_copy(vf->efx->net_dev->dev_addr, mac); | |
531 | } | |
532 | ||
533 | ether_addr_copy(vf->mac, mac); | |
534 | ||
535 | rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); | |
536 | if (rc) | |
537 | goto fail; | |
538 | ||
539 | if (vf->efx) { | |
540 | /* VF cannot use the vport_id that the PF created */ | |
541 | rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); | |
542 | if (rc) { | |
543 | up_write(&vf->efx->filter_sem); | |
544 | return rc; | |
545 | } | |
546 | vf->efx->type->filter_table_probe(vf->efx); | |
547 | up_write(&vf->efx->filter_sem); | |
548 | efx_net_open(vf->efx->net_dev); | |
9c568fd8 | 549 | efx_device_attach_if_not_resetting(vf->efx); |
e340be92 SS |
550 | } |
551 | ||
552 | return 0; | |
553 | ||
554 | fail: | |
4b5b1ac5 | 555 | eth_zero_addr(vf->mac); |
e340be92 SS |
556 | return rc; |
557 | } | |
b9af9049 | 558 | |
2d432f20 SS |
559 | int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan, |
560 | u8 qos) | |
561 | { | |
562 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
563 | struct ef10_vf *vf; | |
2e6dde5c | 564 | u16 new_vlan; |
2d432f20 SS |
565 | int rc = 0, rc2 = 0; |
566 | ||
567 | if (vf_i >= efx->vf_count) | |
568 | return -EINVAL; | |
569 | if (qos != 0) | |
570 | return -EINVAL; | |
571 | ||
572 | vf = nic_data->vf + vf_i; | |
573 | ||
574 | new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan; | |
575 | if (new_vlan == vf->vlan) | |
576 | return 0; | |
577 | ||
578 | if (vf->efx) { | |
579 | efx_device_detach_sync(vf->efx); | |
580 | efx_net_stop(vf->efx->net_dev); | |
581 | ||
d248953a | 582 | mutex_lock(&vf->efx->mac_lock); |
2d432f20 SS |
583 | down_write(&vf->efx->filter_sem); |
584 | vf->efx->type->filter_table_remove(vf->efx); | |
585 | ||
586 | rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); | |
587 | if (rc) | |
588 | goto restore_filters; | |
589 | } | |
590 | ||
591 | if (vf->vport_assigned) { | |
592 | rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); | |
593 | if (rc) { | |
594 | netif_warn(efx, drv, efx->net_dev, | |
595 | "Failed to change vlan on VF %d.\n", vf_i); | |
596 | netif_warn(efx, drv, efx->net_dev, | |
597 | "This is likely because the VF is bound to a driver in a VM.\n"); | |
598 | netif_warn(efx, drv, efx->net_dev, | |
599 | "Please unload the driver in the VM.\n"); | |
600 | goto restore_vadaptor; | |
601 | } | |
602 | vf->vport_assigned = 0; | |
603 | } | |
604 | ||
605 | if (!is_zero_ether_addr(vf->mac)) { | |
606 | rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); | |
607 | if (rc) | |
608 | goto restore_evb_port; | |
609 | } | |
610 | ||
611 | if (vf->vport_id) { | |
612 | rc = efx_ef10_vport_free(efx, vf->vport_id); | |
613 | if (rc) | |
614 | goto restore_mac; | |
615 | vf->vport_id = 0; | |
616 | } | |
617 | ||
618 | /* Do the actual vlan change */ | |
2d432f20 SS |
619 | vf->vlan = new_vlan; |
620 | ||
621 | /* Restore everything in reverse order */ | |
622 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
623 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, | |
624 | vf->vlan, &vf->vport_id); | |
625 | if (rc) | |
671b53ee | 626 | goto reset_nic_up_write; |
2d432f20 SS |
627 | |
628 | restore_mac: | |
629 | if (!is_zero_ether_addr(vf->mac)) { | |
630 | rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); | |
631 | if (rc2) { | |
632 | eth_zero_addr(vf->mac); | |
671b53ee | 633 | goto reset_nic_up_write; |
2d432f20 SS |
634 | } |
635 | } | |
636 | ||
637 | restore_evb_port: | |
638 | rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); | |
639 | if (rc2) | |
671b53ee | 640 | goto reset_nic_up_write; |
2d432f20 SS |
641 | else |
642 | vf->vport_assigned = 1; | |
643 | ||
644 | restore_vadaptor: | |
645 | if (vf->efx) { | |
646 | rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); | |
647 | if (rc2) | |
671b53ee | 648 | goto reset_nic_up_write; |
2d432f20 SS |
649 | } |
650 | ||
651 | restore_filters: | |
652 | if (vf->efx) { | |
653 | rc2 = vf->efx->type->filter_table_probe(vf->efx); | |
654 | if (rc2) | |
671b53ee SS |
655 | goto reset_nic_up_write; |
656 | ||
657 | up_write(&vf->efx->filter_sem); | |
d248953a | 658 | mutex_unlock(&vf->efx->mac_lock); |
2d432f20 | 659 | |
2d432f20 SS |
660 | rc2 = efx_net_open(vf->efx->net_dev); |
661 | if (rc2) | |
662 | goto reset_nic; | |
663 | ||
9c568fd8 | 664 | efx_device_attach_if_not_resetting(vf->efx); |
2d432f20 SS |
665 | } |
666 | return rc; | |
667 | ||
671b53ee | 668 | reset_nic_up_write: |
d248953a | 669 | if (vf->efx) { |
671b53ee | 670 | up_write(&vf->efx->filter_sem); |
d248953a MH |
671 | mutex_unlock(&vf->efx->mac_lock); |
672 | } | |
2d432f20 SS |
673 | reset_nic: |
674 | if (vf->efx) { | |
2d432f20 SS |
675 | netif_err(efx, drv, efx->net_dev, |
676 | "Failed to restore VF - scheduling reset.\n"); | |
677 | efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH); | |
678 | } else { | |
679 | netif_err(efx, drv, efx->net_dev, | |
680 | "Failed to restore the VF and cannot reset the VF " | |
681 | "- VF is not functional.\n"); | |
682 | netif_err(efx, drv, efx->net_dev, | |
683 | "Please reload the driver attached to the VF.\n"); | |
684 | } | |
685 | ||
686 | return rc ? rc : rc2; | |
687 | } | |
688 | ||
860d2ffa SS |
689 | int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, |
690 | bool spoofchk) | |
691 | { | |
692 | return spoofchk ? -EOPNOTSUPP : 0; | |
693 | } | |
694 | ||
4392dc69 EC |
695 | int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i, |
696 | int link_state) | |
697 | { | |
698 | MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); | |
699 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
700 | ||
701 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO != | |
702 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO); | |
703 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE != | |
704 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP); | |
705 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE != | |
706 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN); | |
707 | MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, | |
708 | LINK_STATE_MODE_IN_FUNCTION_PF, | |
709 | nic_data->pf_index, | |
710 | LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); | |
711 | MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state); | |
712 | return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), | |
713 | NULL, 0, NULL); /* don't care what old mode was */ | |
714 | } | |
715 | ||
b9af9049 SS |
716 | int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i, |
717 | struct ifla_vf_info *ivf) | |
718 | { | |
4392dc69 EC |
719 | MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); |
720 | MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN); | |
721 | ||
b9af9049 SS |
722 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
723 | struct ef10_vf *vf; | |
4392dc69 EC |
724 | size_t outlen; |
725 | int rc; | |
b9af9049 SS |
726 | |
727 | if (vf_i >= efx->vf_count) | |
728 | return -EINVAL; | |
729 | ||
730 | if (!nic_data->vf) | |
731 | return -EOPNOTSUPP; | |
732 | ||
733 | vf = nic_data->vf + vf_i; | |
734 | ||
735 | ivf->vf = vf_i; | |
736 | ivf->min_tx_rate = 0; | |
737 | ivf->max_tx_rate = 0; | |
738 | ether_addr_copy(ivf->mac, vf->mac); | |
2d432f20 | 739 | ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan; |
b9af9049 SS |
740 | ivf->qos = 0; |
741 | ||
4392dc69 EC |
742 | MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, |
743 | LINK_STATE_MODE_IN_FUNCTION_PF, | |
744 | nic_data->pf_index, | |
745 | LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); | |
746 | MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, | |
747 | MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE); | |
748 | rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), | |
749 | outbuf, sizeof(outbuf), &outlen); | |
750 | if (rc) | |
751 | return rc; | |
752 | if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN) | |
753 | return -EIO; | |
754 | ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE); | |
755 | ||
b9af9049 SS |
756 | return 0; |
757 | } |