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834e23dd SS |
1 | /**************************************************************************** |
2 | * Driver for Solarflare network controllers and boards | |
3 | * Copyright 2015 Solarflare Communications Inc. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published | |
7 | * by the Free Software Foundation, incorporated herein by reference. | |
8 | */ | |
9 | #include <linux/pci.h> | |
10 | #include <linux/module.h> | |
11 | #include "net_driver.h" | |
12 | #include "ef10_sriov.h" | |
13 | #include "efx.h" | |
14 | #include "nic.h" | |
15 | #include "mcdi_pcol.h" | |
16 | ||
3c5eb876 SS |
17 | static int efx_ef10_evb_port_assign(struct efx_nic *efx, unsigned int port_id, |
18 | unsigned int vf_fn) | |
834e23dd | 19 | { |
3c5eb876 SS |
20 | MCDI_DECLARE_BUF(inbuf, MC_CMD_EVB_PORT_ASSIGN_IN_LEN); |
21 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
834e23dd | 22 | |
3c5eb876 SS |
23 | MCDI_SET_DWORD(inbuf, EVB_PORT_ASSIGN_IN_PORT_ID, port_id); |
24 | MCDI_POPULATE_DWORD_2(inbuf, EVB_PORT_ASSIGN_IN_FUNCTION, | |
25 | EVB_PORT_ASSIGN_IN_PF, nic_data->pf_index, | |
26 | EVB_PORT_ASSIGN_IN_VF, vf_fn); | |
27 | ||
28 | return efx_mcdi_rpc(efx, MC_CMD_EVB_PORT_ASSIGN, inbuf, sizeof(inbuf), | |
29 | NULL, 0, NULL); | |
834e23dd SS |
30 | } |
31 | ||
6d8aaaf6 DP |
32 | static int efx_ef10_vswitch_alloc(struct efx_nic *efx, unsigned int port_id, |
33 | unsigned int vswitch_type) | |
34 | { | |
35 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_ALLOC_IN_LEN); | |
2d432f20 | 36 | int rc; |
6d8aaaf6 DP |
37 | |
38 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_UPSTREAM_PORT_ID, port_id); | |
39 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_TYPE, vswitch_type); | |
2d432f20 | 40 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 2); |
6d8aaaf6 DP |
41 | MCDI_POPULATE_DWORD_1(inbuf, VSWITCH_ALLOC_IN_FLAGS, |
42 | VSWITCH_ALLOC_IN_FLAG_AUTO_PORT, 0); | |
43 | ||
2d432f20 SS |
44 | /* Quietly try to allocate 2 VLAN tags */ |
45 | rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VSWITCH_ALLOC, inbuf, sizeof(inbuf), | |
46 | NULL, 0, NULL); | |
47 | ||
48 | /* If 2 VLAN tags is too many, revert to trying with 1 VLAN tags */ | |
49 | if (rc == -EPROTO) { | |
50 | MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 1); | |
51 | rc = efx_mcdi_rpc(efx, MC_CMD_VSWITCH_ALLOC, inbuf, | |
52 | sizeof(inbuf), NULL, 0, NULL); | |
53 | } else if (rc) { | |
54 | efx_mcdi_display_error(efx, MC_CMD_VSWITCH_ALLOC, | |
55 | MC_CMD_VSWITCH_ALLOC_IN_LEN, | |
56 | NULL, 0, rc); | |
57 | } | |
58 | return rc; | |
6d8aaaf6 DP |
59 | } |
60 | ||
61 | static int efx_ef10_vswitch_free(struct efx_nic *efx, unsigned int port_id) | |
62 | { | |
63 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_FREE_IN_LEN); | |
64 | ||
65 | MCDI_SET_DWORD(inbuf, VSWITCH_FREE_IN_UPSTREAM_PORT_ID, port_id); | |
66 | ||
67 | return efx_mcdi_rpc(efx, MC_CMD_VSWITCH_FREE, inbuf, sizeof(inbuf), | |
68 | NULL, 0, NULL); | |
69 | } | |
70 | ||
71 | static int efx_ef10_vport_alloc(struct efx_nic *efx, | |
72 | unsigned int port_id_in, | |
73 | unsigned int vport_type, | |
2d432f20 | 74 | u16 vlan, |
6d8aaaf6 DP |
75 | unsigned int *port_id_out) |
76 | { | |
77 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ALLOC_IN_LEN); | |
78 | MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_ALLOC_OUT_LEN); | |
79 | size_t outlen; | |
80 | int rc; | |
81 | ||
82 | EFX_WARN_ON_PARANOID(!port_id_out); | |
83 | ||
84 | MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_UPSTREAM_PORT_ID, port_id_in); | |
85 | MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_TYPE, vport_type); | |
2d432f20 SS |
86 | MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_NUM_VLAN_TAGS, |
87 | (vlan != EFX_EF10_NO_VLAN)); | |
6d8aaaf6 DP |
88 | MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_FLAGS, |
89 | VPORT_ALLOC_IN_FLAG_AUTO_PORT, 0); | |
2d432f20 SS |
90 | if (vlan != EFX_EF10_NO_VLAN) |
91 | MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_VLAN_TAGS, | |
92 | VPORT_ALLOC_IN_VLAN_TAG_0, vlan); | |
6d8aaaf6 DP |
93 | |
94 | rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_ALLOC, inbuf, sizeof(inbuf), | |
95 | outbuf, sizeof(outbuf), &outlen); | |
96 | if (rc) | |
97 | return rc; | |
98 | if (outlen < MC_CMD_VPORT_ALLOC_OUT_LEN) | |
99 | return -EIO; | |
100 | ||
101 | *port_id_out = MCDI_DWORD(outbuf, VPORT_ALLOC_OUT_VPORT_ID); | |
102 | return 0; | |
103 | } | |
104 | ||
105 | static int efx_ef10_vport_free(struct efx_nic *efx, unsigned int port_id) | |
106 | { | |
107 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_FREE_IN_LEN); | |
108 | ||
109 | MCDI_SET_DWORD(inbuf, VPORT_FREE_IN_VPORT_ID, port_id); | |
110 | ||
111 | return efx_mcdi_rpc(efx, MC_CMD_VPORT_FREE, inbuf, sizeof(inbuf), | |
112 | NULL, 0, NULL); | |
113 | } | |
114 | ||
3c5eb876 SS |
115 | static void efx_ef10_sriov_free_vf_vports(struct efx_nic *efx) |
116 | { | |
117 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
118 | int i; | |
119 | ||
120 | if (!nic_data->vf) | |
121 | return; | |
122 | ||
123 | for (i = 0; i < efx->vf_count; i++) { | |
124 | struct ef10_vf *vf = nic_data->vf + i; | |
125 | ||
6598dad2 DP |
126 | /* If VF is assigned, do not free the vport */ |
127 | if (vf->pci_dev && | |
128 | vf->pci_dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) | |
129 | continue; | |
130 | ||
3c5eb876 SS |
131 | if (vf->vport_assigned) { |
132 | efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, i); | |
133 | vf->vport_assigned = 0; | |
134 | } | |
135 | ||
136 | if (!is_zero_ether_addr(vf->mac)) { | |
137 | efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); | |
138 | eth_zero_addr(vf->mac); | |
139 | } | |
140 | ||
141 | if (vf->vport_id) { | |
142 | efx_ef10_vport_free(efx, vf->vport_id); | |
143 | vf->vport_id = 0; | |
144 | } | |
f1122a34 SS |
145 | |
146 | vf->efx = NULL; | |
3c5eb876 SS |
147 | } |
148 | } | |
149 | ||
150 | static void efx_ef10_sriov_free_vf_vswitching(struct efx_nic *efx) | |
151 | { | |
152 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
153 | ||
154 | efx_ef10_sriov_free_vf_vports(efx); | |
155 | kfree(nic_data->vf); | |
156 | nic_data->vf = NULL; | |
157 | } | |
158 | ||
159 | static int efx_ef10_sriov_assign_vf_vport(struct efx_nic *efx, | |
160 | unsigned int vf_i) | |
161 | { | |
162 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
163 | struct ef10_vf *vf = nic_data->vf + vf_i; | |
164 | int rc; | |
165 | ||
166 | if (WARN_ON_ONCE(!nic_data->vf)) | |
167 | return -EOPNOTSUPP; | |
168 | ||
169 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
170 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, | |
2d432f20 | 171 | vf->vlan, &vf->vport_id); |
3c5eb876 SS |
172 | if (rc) |
173 | return rc; | |
174 | ||
175 | rc = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); | |
176 | if (rc) { | |
177 | eth_zero_addr(vf->mac); | |
178 | return rc; | |
179 | } | |
180 | ||
181 | rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); | |
182 | if (rc) | |
183 | return rc; | |
184 | ||
185 | vf->vport_assigned = 1; | |
186 | return 0; | |
187 | } | |
188 | ||
189 | static int efx_ef10_sriov_alloc_vf_vswitching(struct efx_nic *efx) | |
190 | { | |
191 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
192 | unsigned int i; | |
193 | int rc; | |
194 | ||
195 | nic_data->vf = kcalloc(efx->vf_count, sizeof(struct ef10_vf), | |
196 | GFP_KERNEL); | |
197 | if (!nic_data->vf) | |
198 | return -ENOMEM; | |
199 | ||
200 | for (i = 0; i < efx->vf_count; i++) { | |
201 | random_ether_addr(nic_data->vf[i].mac); | |
f1122a34 | 202 | nic_data->vf[i].efx = NULL; |
2d432f20 | 203 | nic_data->vf[i].vlan = EFX_EF10_NO_VLAN; |
3c5eb876 SS |
204 | |
205 | rc = efx_ef10_sriov_assign_vf_vport(efx, i); | |
206 | if (rc) | |
207 | goto fail; | |
208 | } | |
209 | ||
210 | return 0; | |
211 | fail: | |
212 | efx_ef10_sriov_free_vf_vports(efx); | |
213 | kfree(nic_data->vf); | |
214 | nic_data->vf = NULL; | |
215 | return rc; | |
216 | } | |
217 | ||
218 | static int efx_ef10_sriov_restore_vf_vswitching(struct efx_nic *efx) | |
219 | { | |
220 | unsigned int i; | |
221 | int rc; | |
222 | ||
223 | for (i = 0; i < efx->vf_count; i++) { | |
224 | rc = efx_ef10_sriov_assign_vf_vport(efx, i); | |
225 | if (rc) | |
226 | goto fail; | |
227 | } | |
228 | ||
229 | return 0; | |
230 | fail: | |
231 | efx_ef10_sriov_free_vf_vswitching(efx); | |
232 | return rc; | |
233 | } | |
234 | ||
6d8aaaf6 DP |
235 | /* On top of the default firmware vswitch setup, create a VEB vswitch and |
236 | * expansion vport for use by this function. | |
237 | */ | |
7b8c7b54 | 238 | int efx_ef10_vswitching_probe_pf(struct efx_nic *efx) |
6d8aaaf6 DP |
239 | { |
240 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
3c5eb876 | 241 | struct net_device *net_dev = efx->net_dev; |
6d8aaaf6 DP |
242 | int rc; |
243 | ||
7b8c7b54 SS |
244 | if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) { |
245 | /* vswitch not needed as we have no VFs */ | |
246 | efx_ef10_vadaptor_alloc(efx, nic_data->vport_id); | |
247 | return 0; | |
248 | } | |
6d8aaaf6 DP |
249 | |
250 | rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
251 | MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB); | |
252 | if (rc) | |
253 | goto fail1; | |
254 | ||
255 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
256 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, | |
2d432f20 | 257 | EFX_EF10_NO_VLAN, &nic_data->vport_id); |
6d8aaaf6 DP |
258 | if (rc) |
259 | goto fail2; | |
260 | ||
3c5eb876 SS |
261 | rc = efx_ef10_vport_add_mac(efx, nic_data->vport_id, net_dev->dev_addr); |
262 | if (rc) | |
263 | goto fail3; | |
3c5eb876 SS |
264 | ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr); |
265 | ||
7b8c7b54 SS |
266 | rc = efx_ef10_vadaptor_alloc(efx, nic_data->vport_id); |
267 | if (rc) | |
268 | goto fail4; | |
269 | ||
6d8aaaf6 | 270 | return 0; |
7b8c7b54 SS |
271 | fail4: |
272 | efx_ef10_vport_del_mac(efx, nic_data->vport_id, nic_data->vport_mac); | |
273 | eth_zero_addr(nic_data->vport_mac); | |
3c5eb876 SS |
274 | fail3: |
275 | efx_ef10_vport_free(efx, nic_data->vport_id); | |
276 | nic_data->vport_id = EVB_PORT_ID_ASSIGNED; | |
6d8aaaf6 DP |
277 | fail2: |
278 | efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED); | |
279 | fail1: | |
280 | return rc; | |
281 | } | |
282 | ||
7b8c7b54 SS |
283 | int efx_ef10_vswitching_probe_vf(struct efx_nic *efx) |
284 | { | |
285 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
286 | ||
287 | return efx_ef10_vadaptor_alloc(efx, nic_data->vport_id); | |
288 | } | |
289 | ||
290 | int efx_ef10_vswitching_restore_pf(struct efx_nic *efx) | |
6d8aaaf6 DP |
291 | { |
292 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
293 | int rc; | |
294 | ||
295 | if (!nic_data->must_probe_vswitching) | |
296 | return 0; | |
297 | ||
7b8c7b54 | 298 | rc = efx_ef10_vswitching_probe_pf(efx); |
3c5eb876 SS |
299 | if (rc) |
300 | goto fail; | |
301 | ||
302 | rc = efx_ef10_sriov_restore_vf_vswitching(efx); | |
303 | if (rc) | |
304 | goto fail; | |
6d8aaaf6 | 305 | |
3c5eb876 SS |
306 | nic_data->must_probe_vswitching = false; |
307 | fail: | |
6d8aaaf6 DP |
308 | return rc; |
309 | } | |
310 | ||
7b8c7b54 SS |
311 | int efx_ef10_vswitching_restore_vf(struct efx_nic *efx) |
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 | ||
319 | rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); | |
320 | if (rc) | |
321 | return rc; | |
322 | ||
323 | nic_data->must_probe_vswitching = false; | |
324 | return 0; | |
325 | } | |
326 | ||
327 | void efx_ef10_vswitching_remove_pf(struct efx_nic *efx) | |
6d8aaaf6 DP |
328 | { |
329 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
330 | ||
3c5eb876 SS |
331 | efx_ef10_sriov_free_vf_vswitching(efx); |
332 | ||
7b8c7b54 SS |
333 | efx_ef10_vadaptor_free(efx, nic_data->vport_id); |
334 | ||
6d8aaaf6 DP |
335 | if (nic_data->vport_id == EVB_PORT_ID_ASSIGNED) |
336 | return; /* No vswitch was ever created */ | |
337 | ||
3c5eb876 SS |
338 | if (!is_zero_ether_addr(nic_data->vport_mac)) { |
339 | efx_ef10_vport_del_mac(efx, nic_data->vport_id, | |
340 | efx->net_dev->dev_addr); | |
341 | eth_zero_addr(nic_data->vport_mac); | |
342 | } | |
6d8aaaf6 DP |
343 | efx_ef10_vport_free(efx, nic_data->vport_id); |
344 | nic_data->vport_id = EVB_PORT_ID_ASSIGNED; | |
345 | ||
6598dad2 DP |
346 | /* Only free the vswitch if no VFs are assigned */ |
347 | if (!pci_vfs_assigned(efx->pci_dev)) | |
348 | efx_ef10_vswitch_free(efx, nic_data->vport_id); | |
6d8aaaf6 | 349 | } |
3c5eb876 | 350 | |
7b8c7b54 SS |
351 | void efx_ef10_vswitching_remove_vf(struct efx_nic *efx) |
352 | { | |
353 | efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED); | |
354 | } | |
355 | ||
3c5eb876 SS |
356 | static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs) |
357 | { | |
358 | int rc = 0; | |
359 | struct pci_dev *dev = efx->pci_dev; | |
360 | ||
361 | efx->vf_count = num_vfs; | |
362 | ||
363 | rc = efx_ef10_sriov_alloc_vf_vswitching(efx); | |
364 | if (rc) | |
365 | goto fail1; | |
366 | ||
367 | rc = pci_enable_sriov(dev, num_vfs); | |
368 | if (rc) | |
369 | goto fail2; | |
370 | ||
371 | return 0; | |
372 | fail2: | |
373 | efx_ef10_sriov_free_vf_vswitching(efx); | |
374 | fail1: | |
375 | efx->vf_count = 0; | |
376 | netif_err(efx, probe, efx->net_dev, | |
377 | "Failed to enable SRIOV VFs\n"); | |
378 | return rc; | |
379 | } | |
380 | ||
6598dad2 | 381 | static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force) |
3c5eb876 SS |
382 | { |
383 | struct pci_dev *dev = efx->pci_dev; | |
6598dad2 | 384 | unsigned int vfs_assigned = 0; |
3c5eb876 | 385 | |
6598dad2 | 386 | vfs_assigned = pci_vfs_assigned(dev); |
71158bf2 | 387 | |
6598dad2 DP |
388 | if (vfs_assigned && !force) { |
389 | netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; " | |
390 | "please detach them before disabling SR-IOV\n"); | |
71158bf2 DP |
391 | return -EBUSY; |
392 | } | |
393 | ||
6598dad2 DP |
394 | if (!vfs_assigned) |
395 | pci_disable_sriov(dev); | |
396 | ||
3c5eb876 SS |
397 | efx_ef10_sriov_free_vf_vswitching(efx); |
398 | efx->vf_count = 0; | |
399 | return 0; | |
400 | } | |
401 | ||
402 | int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs) | |
403 | { | |
404 | if (num_vfs == 0) | |
6598dad2 | 405 | return efx_ef10_pci_sriov_disable(efx, false); |
3c5eb876 SS |
406 | else |
407 | return efx_ef10_pci_sriov_enable(efx, num_vfs); | |
408 | } | |
409 | ||
410 | int efx_ef10_sriov_init(struct efx_nic *efx) | |
411 | { | |
412 | return 0; | |
413 | } | |
414 | ||
415 | void efx_ef10_sriov_fini(struct efx_nic *efx) | |
416 | { | |
417 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
2a3fc311 | 418 | unsigned int i; |
3c5eb876 SS |
419 | int rc; |
420 | ||
6598dad2 DP |
421 | if (!nic_data->vf) { |
422 | /* Remove any un-assigned orphaned VFs */ | |
423 | if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev)) | |
424 | pci_disable_sriov(efx->pci_dev); | |
3c5eb876 | 425 | return; |
6598dad2 | 426 | } |
3c5eb876 | 427 | |
2a3fc311 DP |
428 | /* Remove any VFs in the host */ |
429 | for (i = 0; i < efx->vf_count; ++i) { | |
430 | struct efx_nic *vf_efx = nic_data->vf[i].efx; | |
431 | ||
432 | if (vf_efx) | |
433 | vf_efx->pci_dev->driver->remove(vf_efx->pci_dev); | |
434 | } | |
435 | ||
6598dad2 | 436 | rc = efx_ef10_pci_sriov_disable(efx, true); |
3c5eb876 SS |
437 | if (rc) |
438 | netif_dbg(efx, drv, efx->net_dev, | |
439 | "Disabling SRIOV was not successful rc=%d\n", rc); | |
440 | else | |
441 | netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n"); | |
442 | } | |
e340be92 SS |
443 | |
444 | static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id, | |
445 | u8 *mac) | |
446 | { | |
447 | MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN); | |
448 | MCDI_DECLARE_BUF_ERR(outbuf); | |
449 | size_t outlen; | |
450 | int rc; | |
451 | ||
452 | MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id); | |
453 | ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac); | |
454 | ||
455 | rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf, | |
456 | sizeof(inbuf), outbuf, sizeof(outbuf), &outlen); | |
457 | ||
458 | return rc; | |
459 | } | |
460 | ||
461 | int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac) | |
462 | { | |
463 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
464 | struct ef10_vf *vf; | |
465 | int rc; | |
466 | ||
467 | if (!nic_data->vf) | |
468 | return -EOPNOTSUPP; | |
469 | ||
470 | if (vf_i >= efx->vf_count) | |
471 | return -EINVAL; | |
472 | vf = nic_data->vf + vf_i; | |
473 | ||
474 | if (vf->efx) { | |
475 | efx_device_detach_sync(vf->efx); | |
476 | efx_net_stop(vf->efx->net_dev); | |
477 | ||
478 | down_write(&vf->efx->filter_sem); | |
479 | vf->efx->type->filter_table_remove(vf->efx); | |
480 | ||
481 | rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); | |
482 | if (rc) { | |
483 | up_write(&vf->efx->filter_sem); | |
484 | return rc; | |
485 | } | |
486 | } | |
487 | ||
488 | rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); | |
489 | if (rc) | |
490 | return rc; | |
491 | ||
492 | if (!is_zero_ether_addr(vf->mac)) { | |
493 | rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac); | |
494 | if (rc) | |
495 | return rc; | |
496 | } | |
497 | ||
498 | if (!is_zero_ether_addr(mac)) { | |
499 | rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac); | |
500 | if (rc) { | |
501 | eth_zero_addr(vf->mac); | |
502 | goto fail; | |
503 | } | |
504 | if (vf->efx) | |
505 | ether_addr_copy(vf->efx->net_dev->dev_addr, mac); | |
506 | } | |
507 | ||
508 | ether_addr_copy(vf->mac, mac); | |
509 | ||
510 | rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); | |
511 | if (rc) | |
512 | goto fail; | |
513 | ||
514 | if (vf->efx) { | |
515 | /* VF cannot use the vport_id that the PF created */ | |
516 | rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); | |
517 | if (rc) { | |
518 | up_write(&vf->efx->filter_sem); | |
519 | return rc; | |
520 | } | |
521 | vf->efx->type->filter_table_probe(vf->efx); | |
522 | up_write(&vf->efx->filter_sem); | |
523 | efx_net_open(vf->efx->net_dev); | |
524 | netif_device_attach(vf->efx->net_dev); | |
525 | } | |
526 | ||
527 | return 0; | |
528 | ||
529 | fail: | |
530 | memset(vf->mac, 0, ETH_ALEN); | |
531 | return rc; | |
532 | } | |
b9af9049 | 533 | |
2d432f20 SS |
534 | int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan, |
535 | u8 qos) | |
536 | { | |
537 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
538 | struct ef10_vf *vf; | |
539 | u16 old_vlan, new_vlan; | |
540 | int rc = 0, rc2 = 0; | |
541 | ||
542 | if (vf_i >= efx->vf_count) | |
543 | return -EINVAL; | |
544 | if (qos != 0) | |
545 | return -EINVAL; | |
546 | ||
547 | vf = nic_data->vf + vf_i; | |
548 | ||
549 | new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan; | |
550 | if (new_vlan == vf->vlan) | |
551 | return 0; | |
552 | ||
553 | if (vf->efx) { | |
554 | efx_device_detach_sync(vf->efx); | |
555 | efx_net_stop(vf->efx->net_dev); | |
556 | ||
557 | down_write(&vf->efx->filter_sem); | |
558 | vf->efx->type->filter_table_remove(vf->efx); | |
559 | ||
560 | rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED); | |
561 | if (rc) | |
562 | goto restore_filters; | |
563 | } | |
564 | ||
565 | if (vf->vport_assigned) { | |
566 | rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i); | |
567 | if (rc) { | |
568 | netif_warn(efx, drv, efx->net_dev, | |
569 | "Failed to change vlan on VF %d.\n", vf_i); | |
570 | netif_warn(efx, drv, efx->net_dev, | |
571 | "This is likely because the VF is bound to a driver in a VM.\n"); | |
572 | netif_warn(efx, drv, efx->net_dev, | |
573 | "Please unload the driver in the VM.\n"); | |
574 | goto restore_vadaptor; | |
575 | } | |
576 | vf->vport_assigned = 0; | |
577 | } | |
578 | ||
579 | if (!is_zero_ether_addr(vf->mac)) { | |
580 | rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac); | |
581 | if (rc) | |
582 | goto restore_evb_port; | |
583 | } | |
584 | ||
585 | if (vf->vport_id) { | |
586 | rc = efx_ef10_vport_free(efx, vf->vport_id); | |
587 | if (rc) | |
588 | goto restore_mac; | |
589 | vf->vport_id = 0; | |
590 | } | |
591 | ||
592 | /* Do the actual vlan change */ | |
593 | old_vlan = vf->vlan; | |
594 | vf->vlan = new_vlan; | |
595 | ||
596 | /* Restore everything in reverse order */ | |
597 | rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED, | |
598 | MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL, | |
599 | vf->vlan, &vf->vport_id); | |
600 | if (rc) | |
671b53ee | 601 | goto reset_nic_up_write; |
2d432f20 SS |
602 | |
603 | restore_mac: | |
604 | if (!is_zero_ether_addr(vf->mac)) { | |
605 | rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac); | |
606 | if (rc2) { | |
607 | eth_zero_addr(vf->mac); | |
671b53ee | 608 | goto reset_nic_up_write; |
2d432f20 SS |
609 | } |
610 | } | |
611 | ||
612 | restore_evb_port: | |
613 | rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i); | |
614 | if (rc2) | |
671b53ee | 615 | goto reset_nic_up_write; |
2d432f20 SS |
616 | else |
617 | vf->vport_assigned = 1; | |
618 | ||
619 | restore_vadaptor: | |
620 | if (vf->efx) { | |
621 | rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED); | |
622 | if (rc2) | |
671b53ee | 623 | goto reset_nic_up_write; |
2d432f20 SS |
624 | } |
625 | ||
626 | restore_filters: | |
627 | if (vf->efx) { | |
628 | rc2 = vf->efx->type->filter_table_probe(vf->efx); | |
629 | if (rc2) | |
671b53ee SS |
630 | goto reset_nic_up_write; |
631 | ||
632 | up_write(&vf->efx->filter_sem); | |
2d432f20 SS |
633 | |
634 | up_write(&vf->efx->filter_sem); | |
635 | ||
636 | rc2 = efx_net_open(vf->efx->net_dev); | |
637 | if (rc2) | |
638 | goto reset_nic; | |
639 | ||
640 | netif_device_attach(vf->efx->net_dev); | |
641 | } | |
642 | return rc; | |
643 | ||
671b53ee SS |
644 | reset_nic_up_write: |
645 | if (vf->efx) | |
646 | up_write(&vf->efx->filter_sem); | |
647 | ||
2d432f20 SS |
648 | reset_nic: |
649 | if (vf->efx) { | |
2d432f20 SS |
650 | netif_err(efx, drv, efx->net_dev, |
651 | "Failed to restore VF - scheduling reset.\n"); | |
652 | efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH); | |
653 | } else { | |
654 | netif_err(efx, drv, efx->net_dev, | |
655 | "Failed to restore the VF and cannot reset the VF " | |
656 | "- VF is not functional.\n"); | |
657 | netif_err(efx, drv, efx->net_dev, | |
658 | "Please reload the driver attached to the VF.\n"); | |
659 | } | |
660 | ||
661 | return rc ? rc : rc2; | |
662 | } | |
663 | ||
860d2ffa SS |
664 | int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, |
665 | bool spoofchk) | |
666 | { | |
667 | return spoofchk ? -EOPNOTSUPP : 0; | |
668 | } | |
669 | ||
4392dc69 EC |
670 | int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i, |
671 | int link_state) | |
672 | { | |
673 | MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); | |
674 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
675 | ||
676 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO != | |
677 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO); | |
678 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE != | |
679 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP); | |
680 | BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE != | |
681 | MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN); | |
682 | MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, | |
683 | LINK_STATE_MODE_IN_FUNCTION_PF, | |
684 | nic_data->pf_index, | |
685 | LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); | |
686 | MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state); | |
687 | return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), | |
688 | NULL, 0, NULL); /* don't care what old mode was */ | |
689 | } | |
690 | ||
b9af9049 SS |
691 | int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i, |
692 | struct ifla_vf_info *ivf) | |
693 | { | |
4392dc69 EC |
694 | MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN); |
695 | MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN); | |
696 | ||
b9af9049 SS |
697 | struct efx_ef10_nic_data *nic_data = efx->nic_data; |
698 | struct ef10_vf *vf; | |
4392dc69 EC |
699 | size_t outlen; |
700 | int rc; | |
b9af9049 SS |
701 | |
702 | if (vf_i >= efx->vf_count) | |
703 | return -EINVAL; | |
704 | ||
705 | if (!nic_data->vf) | |
706 | return -EOPNOTSUPP; | |
707 | ||
708 | vf = nic_data->vf + vf_i; | |
709 | ||
710 | ivf->vf = vf_i; | |
711 | ivf->min_tx_rate = 0; | |
712 | ivf->max_tx_rate = 0; | |
713 | ether_addr_copy(ivf->mac, vf->mac); | |
2d432f20 | 714 | ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan; |
b9af9049 SS |
715 | ivf->qos = 0; |
716 | ||
4392dc69 EC |
717 | MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION, |
718 | LINK_STATE_MODE_IN_FUNCTION_PF, | |
719 | nic_data->pf_index, | |
720 | LINK_STATE_MODE_IN_FUNCTION_VF, vf_i); | |
721 | MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, | |
722 | MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE); | |
723 | rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf), | |
724 | outbuf, sizeof(outbuf), &outlen); | |
725 | if (rc) | |
726 | return rc; | |
727 | if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN) | |
728 | return -EIO; | |
729 | ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE); | |
730 | ||
b9af9049 SS |
731 | return 0; |
732 | } | |
1d051e00 SS |
733 | |
734 | int efx_ef10_sriov_get_phys_port_id(struct efx_nic *efx, | |
735 | struct netdev_phys_item_id *ppid) | |
736 | { | |
737 | struct efx_ef10_nic_data *nic_data = efx->nic_data; | |
738 | ||
739 | if (!is_valid_ether_addr(nic_data->port_id)) | |
740 | return -EOPNOTSUPP; | |
741 | ||
742 | ppid->id_len = ETH_ALEN; | |
743 | memcpy(ppid->id, nic_data->port_id, ppid->id_len); | |
744 | ||
745 | return 0; | |
746 | } |