1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 1999 - 2018 Intel Corporation. */
3
4 #include <linux/types.h>
5 #include <linux/module.h>
6 #include <linux/pci.h>
7 #include <linux/netdevice.h>
8 #include <linux/vmalloc.h>
9 #include <linux/string.h>
10 #include <linux/in.h>
11 #include <linux/ip.h>
12 #include <linux/tcp.h>
13 #include <linux/ipv6.h>
14 #include <linux/if_bridge.h>
15 #ifdef NETIF_F_HW_VLAN_CTAG_TX
16 #include <linux/if_vlan.h>
17 #endif
18
19 #include "ixgbe.h"
20 #include "ixgbe_type.h"
21 #include "ixgbe_sriov.h"
22
23 #ifdef CONFIG_PCI_IOV
ixgbe_alloc_vf_macvlans(struct ixgbe_adapter * adapter,unsigned int num_vfs)24 static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
25 unsigned int num_vfs)
26 {
27 struct ixgbe_hw *hw = &adapter->hw;
28 struct vf_macvlans *mv_list;
29 int num_vf_macvlans, i;
30
31 /* Initialize list of VF macvlans */
32 INIT_LIST_HEAD(&adapter->vf_mvs.l);
33
34 num_vf_macvlans = hw->mac.num_rar_entries -
35 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
36 if (!num_vf_macvlans)
37 return;
38
39 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
40 GFP_KERNEL);
41 if (mv_list) {
42 for (i = 0; i < num_vf_macvlans; i++) {
43 mv_list[i].vf = -1;
44 mv_list[i].free = true;
45 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
46 }
47 adapter->mv_list = mv_list;
48 }
49 }
50
__ixgbe_enable_sriov(struct ixgbe_adapter * adapter,unsigned int num_vfs)51 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
52 unsigned int num_vfs)
53 {
54 struct ixgbe_hw *hw = &adapter->hw;
55 int i;
56
57 if (adapter->xdp_prog) {
58 e_warn(probe, "SRIOV is not supported with XDP\n");
59 return -EINVAL;
60 }
61
62 /* Enable VMDq flag so device will be set in VM mode */
63 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
64 IXGBE_FLAG_VMDQ_ENABLED;
65
66 /* Allocate memory for per VF control structures */
67 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
68 GFP_KERNEL);
69 if (!adapter->vfinfo)
70 return -ENOMEM;
71
72 adapter->num_vfs = num_vfs;
73
74 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
75 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
76
77 /* Initialize default switching mode VEB */
78 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
79 adapter->bridge_mode = BRIDGE_MODE_VEB;
80
81 /* limit traffic classes based on VFs enabled */
82 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
83 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
84 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
85 } else if (num_vfs < 32) {
86 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
87 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
88 } else {
89 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
90 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
91 }
92
93 /* Disable RSC when in SR-IOV mode */
94 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
95 IXGBE_FLAG2_RSC_ENABLED);
96
97 for (i = 0; i < num_vfs; i++) {
98 /* enable spoof checking for all VFs */
99 adapter->vfinfo[i].spoofchk_enabled = true;
100 adapter->vfinfo[i].link_enable = true;
101
102 /* We support VF RSS querying only for 82599 and x540
103 * devices at the moment. These devices share RSS
104 * indirection table and RSS hash key with PF therefore
105 * we want to disable the querying by default.
106 */
107 adapter->vfinfo[i].rss_query_enabled = false;
108
109 /* Untrust all VFs */
110 adapter->vfinfo[i].trusted = false;
111
112 /* set the default xcast mode */
113 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
114 }
115
116 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
117 return 0;
118 }
119
120 /**
121 * ixgbe_get_vfs - Find and take references to all vf devices
122 * @adapter: Pointer to adapter struct
123 */
ixgbe_get_vfs(struct ixgbe_adapter * adapter)124 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
125 {
126 struct pci_dev *pdev = adapter->pdev;
127 u16 vendor = pdev->vendor;
128 struct pci_dev *vfdev;
129 int vf = 0;
130 u16 vf_id;
131 int pos;
132
133 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
134 if (!pos)
135 return;
136 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
137
138 vfdev = pci_get_device(vendor, vf_id, NULL);
139 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
140 if (!vfdev->is_virtfn)
141 continue;
142 if (vfdev->physfn != pdev)
143 continue;
144 if (vf >= adapter->num_vfs)
145 continue;
146 pci_dev_get(vfdev);
147 adapter->vfinfo[vf].vfdev = vfdev;
148 ++vf;
149 }
150 }
151
152 /* Note this function is called when the user wants to enable SR-IOV
153 * VFs using the now deprecated module parameter
154 */
ixgbe_enable_sriov(struct ixgbe_adapter * adapter,unsigned int max_vfs)155 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
156 {
157 int pre_existing_vfs = 0;
158 unsigned int num_vfs;
159
160 pre_existing_vfs = pci_num_vf(adapter->pdev);
161 if (!pre_existing_vfs && !max_vfs)
162 return;
163
164 /* If there are pre-existing VFs then we have to force
165 * use of that many - over ride any module parameter value.
166 * This may result from the user unloading the PF driver
167 * while VFs were assigned to guest VMs or because the VFs
168 * have been created via the new PCI SR-IOV sysfs interface.
169 */
170 if (pre_existing_vfs) {
171 num_vfs = pre_existing_vfs;
172 dev_warn(&adapter->pdev->dev,
173 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
174 } else {
175 int err;
176 /*
177 * The 82599 supports up to 64 VFs per physical function
178 * but this implementation limits allocation to 63 so that
179 * basic networking resources are still available to the
180 * physical function. If the user requests greater than
181 * 63 VFs then it is an error - reset to default of zero.
182 */
183 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
184
185 err = pci_enable_sriov(adapter->pdev, num_vfs);
186 if (err) {
187 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
188 return;
189 }
190 }
191
192 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
193 ixgbe_get_vfs(adapter);
194 return;
195 }
196
197 /* If we have gotten to this point then there is no memory available
198 * to manage the VF devices - print message and bail.
199 */
200 e_err(probe, "Unable to allocate memory for VF Data Storage - "
201 "SRIOV disabled\n");
202 ixgbe_disable_sriov(adapter);
203 }
204
205 #endif /* #ifdef CONFIG_PCI_IOV */
ixgbe_disable_sriov(struct ixgbe_adapter * adapter)206 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
207 {
208 unsigned int num_vfs = adapter->num_vfs, vf;
209 unsigned long flags;
210 int rss;
211
212 spin_lock_irqsave(&adapter->vfs_lock, flags);
213 /* set num VFs to 0 to prevent access to vfinfo */
214 adapter->num_vfs = 0;
215 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
216
217 /* put the reference to all of the vf devices */
218 for (vf = 0; vf < num_vfs; ++vf) {
219 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
220
221 if (!vfdev)
222 continue;
223 adapter->vfinfo[vf].vfdev = NULL;
224 pci_dev_put(vfdev);
225 }
226
227 /* free VF control structures */
228 kfree(adapter->vfinfo);
229 adapter->vfinfo = NULL;
230
231 /* free macvlan list */
232 kfree(adapter->mv_list);
233 adapter->mv_list = NULL;
234
235 /* if SR-IOV is already disabled then there is nothing to do */
236 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
237 return 0;
238
239 #ifdef CONFIG_PCI_IOV
240 /*
241 * If our VFs are assigned we cannot shut down SR-IOV
242 * without causing issues, so just leave the hardware
243 * available but disabled
244 */
245 if (pci_vfs_assigned(adapter->pdev)) {
246 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
247 return -EPERM;
248 }
249 /* disable iov and allow time for transactions to clear */
250 pci_disable_sriov(adapter->pdev);
251 #endif
252
253 /* Disable VMDq flag so device will be set in VM mode */
254 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
255 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
256 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
257 rss = min_t(int, ixgbe_max_rss_indices(adapter),
258 num_online_cpus());
259 } else {
260 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
261 }
262
263 adapter->ring_feature[RING_F_VMDQ].offset = 0;
264 adapter->ring_feature[RING_F_RSS].limit = rss;
265
266 /* take a breather then clean up driver data */
267 msleep(100);
268 return 0;
269 }
270
ixgbe_pci_sriov_enable(struct pci_dev * dev,int num_vfs)271 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
272 {
273 #ifdef CONFIG_PCI_IOV
274 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
275 int pre_existing_vfs = pci_num_vf(dev);
276 int err = 0, num_rx_pools, i, limit;
277 u8 num_tc;
278
279 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
280 err = ixgbe_disable_sriov(adapter);
281 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
282 return num_vfs;
283
284 if (err)
285 return err;
286
287 /* While the SR-IOV capability structure reports total VFs to be 64,
288 * we limit the actual number allocated as below based on two factors.
289 * Num_TCs MAX_VFs
290 * 1 63
291 * <=4 31
292 * >4 15
293 * First, we reserve some transmit/receive resources for the PF.
294 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
295 * account for this, so that we don't accidentally allocate more VFs
296 * than we have available pools. The PCI bus driver already checks for
297 * other values out of range.
298 */
299 num_tc = adapter->hw_tcs;
300 num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
301 adapter->num_rx_pools);
302 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
303 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
304
305 if (num_vfs > (limit - num_rx_pools)) {
306 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
307 num_tc, num_rx_pools - 1, limit - num_rx_pools);
308 return -EPERM;
309 }
310
311 err = __ixgbe_enable_sriov(adapter, num_vfs);
312 if (err)
313 return err;
314
315 for (i = 0; i < num_vfs; i++)
316 ixgbe_vf_configuration(dev, (i | 0x10000000));
317
318 /* reset before enabling SRIOV to avoid mailbox issues */
319 ixgbe_sriov_reinit(adapter);
320
321 err = pci_enable_sriov(dev, num_vfs);
322 if (err) {
323 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
324 return err;
325 }
326 ixgbe_get_vfs(adapter);
327
328 return num_vfs;
329 #else
330 return 0;
331 #endif
332 }
333
ixgbe_pci_sriov_disable(struct pci_dev * dev)334 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
335 {
336 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
337 int err;
338 #ifdef CONFIG_PCI_IOV
339 u32 current_flags = adapter->flags;
340 int prev_num_vf = pci_num_vf(dev);
341 #endif
342
343 err = ixgbe_disable_sriov(adapter);
344
345 /* Only reinit if no error and state changed */
346 #ifdef CONFIG_PCI_IOV
347 if (!err && (current_flags != adapter->flags ||
348 prev_num_vf != pci_num_vf(dev)))
349 ixgbe_sriov_reinit(adapter);
350 #endif
351
352 return err;
353 }
354
ixgbe_pci_sriov_configure(struct pci_dev * dev,int num_vfs)355 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
356 {
357 if (num_vfs == 0)
358 return ixgbe_pci_sriov_disable(dev);
359 else
360 return ixgbe_pci_sriov_enable(dev, num_vfs);
361 }
362
ixgbe_set_vf_multicasts(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)363 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
364 u32 *msgbuf, u32 vf)
365 {
366 int entries = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
367 u16 *hash_list = (u16 *)&msgbuf[1];
368 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
369 struct ixgbe_hw *hw = &adapter->hw;
370 int i;
371 u32 vector_bit;
372 u32 vector_reg;
373 u32 mta_reg;
374 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
375
376 /* only so many hash values supported */
377 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
378
379 /*
380 * salt away the number of multi cast addresses assigned
381 * to this VF for later use to restore when the PF multi cast
382 * list changes
383 */
384 vfinfo->num_vf_mc_hashes = entries;
385
386 /*
387 * VFs are limited to using the MTA hash table for their multicast
388 * addresses
389 */
390 for (i = 0; i < entries; i++) {
391 vfinfo->vf_mc_hashes[i] = hash_list[i];
392 }
393
394 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
395 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
396 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
397 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
398 mta_reg |= BIT(vector_bit);
399 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
400 }
401 vmolr |= IXGBE_VMOLR_ROMPE;
402 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
403
404 return 0;
405 }
406
407 #ifdef CONFIG_PCI_IOV
ixgbe_restore_vf_multicasts(struct ixgbe_adapter * adapter)408 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
409 {
410 struct ixgbe_hw *hw = &adapter->hw;
411 struct vf_data_storage *vfinfo;
412 int i, j;
413 u32 vector_bit;
414 u32 vector_reg;
415 u32 mta_reg;
416
417 for (i = 0; i < adapter->num_vfs; i++) {
418 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
419 vfinfo = &adapter->vfinfo[i];
420 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
421 hw->addr_ctrl.mta_in_use++;
422 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
423 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
424 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
425 mta_reg |= BIT(vector_bit);
426 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
427 }
428
429 if (vfinfo->num_vf_mc_hashes)
430 vmolr |= IXGBE_VMOLR_ROMPE;
431 else
432 vmolr &= ~IXGBE_VMOLR_ROMPE;
433 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
434 }
435
436 /* Restore any VF macvlans */
437 ixgbe_full_sync_mac_table(adapter);
438 }
439 #endif
440
ixgbe_set_vf_vlan(struct ixgbe_adapter * adapter,int add,int vid,u32 vf)441 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
442 u32 vf)
443 {
444 struct ixgbe_hw *hw = &adapter->hw;
445 int err;
446
447 /* If VLAN overlaps with one the PF is currently monitoring make
448 * sure that we are able to allocate a VLVF entry. This may be
449 * redundant but it guarantees PF will maintain visibility to
450 * the VLAN.
451 */
452 if (add && test_bit(vid, adapter->active_vlans)) {
453 err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
454 if (err)
455 return err;
456 }
457
458 err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
459
460 if (add && !err)
461 return err;
462
463 /* If we failed to add the VF VLAN or we are removing the VF VLAN
464 * we may need to drop the PF pool bit in order to allow us to free
465 * up the VLVF resources.
466 */
467 if (test_bit(vid, adapter->active_vlans) ||
468 (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
469 ixgbe_update_pf_promisc_vlvf(adapter, vid);
470
471 return err;
472 }
473
ixgbe_set_vf_lpe(struct ixgbe_adapter * adapter,u32 max_frame,u32 vf)474 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
475 {
476 struct ixgbe_hw *hw = &adapter->hw;
477 u32 max_frs;
478
479 if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
480 e_err(drv, "VF max_frame %d out of range\n", max_frame);
481 return -EINVAL;
482 }
483
484 /*
485 * For 82599EB we have to keep all PFs and VFs operating with
486 * the same max_frame value in order to avoid sending an oversize
487 * frame to a VF. In order to guarantee this is handled correctly
488 * for all cases we have several special exceptions to take into
489 * account before we can enable the VF for receive
490 */
491 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
492 struct net_device *dev = adapter->netdev;
493 int pf_max_frame = dev->mtu + ETH_HLEN;
494 u32 reg_offset, vf_shift, vfre;
495 s32 err = 0;
496
497 #ifdef CONFIG_FCOE
498 if (dev->features & NETIF_F_FCOE_MTU)
499 pf_max_frame = max_t(int, pf_max_frame,
500 IXGBE_FCOE_JUMBO_FRAME_SIZE);
501
502 #endif /* CONFIG_FCOE */
503 switch (adapter->vfinfo[vf].vf_api) {
504 case ixgbe_mbox_api_11:
505 case ixgbe_mbox_api_12:
506 case ixgbe_mbox_api_13:
507 case ixgbe_mbox_api_14:
508 /* Version 1.1 supports jumbo frames on VFs if PF has
509 * jumbo frames enabled which means legacy VFs are
510 * disabled
511 */
512 if (pf_max_frame > ETH_FRAME_LEN)
513 break;
514 fallthrough;
515 default:
516 /* If the PF or VF are running w/ jumbo frames enabled
517 * we need to shut down the VF Rx path as we cannot
518 * support jumbo frames on legacy VFs
519 */
520 if ((pf_max_frame > ETH_FRAME_LEN) ||
521 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
522 err = -EINVAL;
523 break;
524 }
525
526 /* determine VF receive enable location */
527 vf_shift = vf % 32;
528 reg_offset = vf / 32;
529
530 /* enable or disable receive depending on error */
531 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
532 if (err)
533 vfre &= ~BIT(vf_shift);
534 else
535 vfre |= BIT(vf_shift);
536 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
537
538 if (err) {
539 e_err(drv, "VF max_frame %d out of range\n", max_frame);
540 return err;
541 }
542 }
543
544 /* pull current max frame size from hardware */
545 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
546 max_frs &= IXGBE_MHADD_MFS_MASK;
547 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
548
549 if (max_frs < max_frame) {
550 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
551 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
552 }
553
554 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
555
556 return 0;
557 }
558
ixgbe_set_vmolr(struct ixgbe_hw * hw,u32 vf,bool aupe)559 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
560 {
561 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
562 vmolr |= IXGBE_VMOLR_BAM;
563 if (aupe)
564 vmolr |= IXGBE_VMOLR_AUPE;
565 else
566 vmolr &= ~IXGBE_VMOLR_AUPE;
567 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
568 }
569
ixgbe_clear_vmvir(struct ixgbe_adapter * adapter,u32 vf)570 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
571 {
572 struct ixgbe_hw *hw = &adapter->hw;
573
574 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
575 }
576
ixgbe_clear_vf_vlans(struct ixgbe_adapter * adapter,u32 vf)577 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
578 {
579 struct ixgbe_hw *hw = &adapter->hw;
580 u32 vlvfb_mask, pool_mask, i;
581
582 /* create mask for VF and other pools */
583 pool_mask = ~BIT(VMDQ_P(0) % 32);
584 vlvfb_mask = BIT(vf % 32);
585
586 /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
587 for (i = IXGBE_VLVF_ENTRIES; i--;) {
588 u32 bits[2], vlvfb, vid, vfta, vlvf;
589 u32 word = i * 2 + vf / 32;
590 u32 mask;
591
592 vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
593
594 /* if our bit isn't set we can skip it */
595 if (!(vlvfb & vlvfb_mask))
596 continue;
597
598 /* clear our bit from vlvfb */
599 vlvfb ^= vlvfb_mask;
600
601 /* create 64b mask to chedk to see if we should clear VLVF */
602 bits[word % 2] = vlvfb;
603 bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
604
605 /* if other pools are present, just remove ourselves */
606 if (bits[(VMDQ_P(0) / 32) ^ 1] ||
607 (bits[VMDQ_P(0) / 32] & pool_mask))
608 goto update_vlvfb;
609
610 /* if PF is present, leave VFTA */
611 if (bits[0] || bits[1])
612 goto update_vlvf;
613
614 /* if we cannot determine VLAN just remove ourselves */
615 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
616 if (!vlvf)
617 goto update_vlvfb;
618
619 vid = vlvf & VLAN_VID_MASK;
620 mask = BIT(vid % 32);
621
622 /* clear bit from VFTA */
623 vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
624 if (vfta & mask)
625 IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
626 update_vlvf:
627 /* clear POOL selection enable */
628 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
629
630 if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
631 vlvfb = 0;
632 update_vlvfb:
633 /* clear pool bits */
634 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
635 }
636 }
637
ixgbe_set_vf_macvlan(struct ixgbe_adapter * adapter,int vf,int index,unsigned char * mac_addr)638 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
639 int vf, int index, unsigned char *mac_addr)
640 {
641 struct vf_macvlans *entry;
642 struct list_head *pos;
643 int retval = 0;
644
645 if (index <= 1) {
646 list_for_each(pos, &adapter->vf_mvs.l) {
647 entry = list_entry(pos, struct vf_macvlans, l);
648 if (entry->vf == vf) {
649 entry->vf = -1;
650 entry->free = true;
651 entry->is_macvlan = false;
652 ixgbe_del_mac_filter(adapter,
653 entry->vf_macvlan, vf);
654 }
655 }
656 }
657
658 /*
659 * If index was zero then we were asked to clear the uc list
660 * for the VF. We're done.
661 */
662 if (!index)
663 return 0;
664
665 entry = NULL;
666
667 list_for_each(pos, &adapter->vf_mvs.l) {
668 entry = list_entry(pos, struct vf_macvlans, l);
669 if (entry->free)
670 break;
671 }
672
673 /*
674 * If we traversed the entire list and didn't find a free entry
675 * then we're out of space on the RAR table. Also entry may
676 * be NULL because the original memory allocation for the list
677 * failed, which is not fatal but does mean we can't support
678 * VF requests for MACVLAN because we couldn't allocate
679 * memory for the list management required.
680 */
681 if (!entry || !entry->free)
682 return -ENOSPC;
683
684 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
685 if (retval < 0)
686 return retval;
687
688 entry->free = false;
689 entry->is_macvlan = true;
690 entry->vf = vf;
691 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
692
693 return 0;
694 }
695
ixgbe_vf_reset_event(struct ixgbe_adapter * adapter,u32 vf)696 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
697 {
698 struct ixgbe_hw *hw = &adapter->hw;
699 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
700 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
701 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
702 u8 num_tcs = adapter->hw_tcs;
703 u32 reg_val;
704 u32 queue;
705
706 /* remove VLAN filters beloning to this VF */
707 ixgbe_clear_vf_vlans(adapter, vf);
708
709 /* add back PF assigned VLAN or VLAN 0 */
710 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
711
712 /* reset offloads to defaults */
713 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
714
715 /* set outgoing tags for VFs */
716 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
717 ixgbe_clear_vmvir(adapter, vf);
718 } else {
719 if (vfinfo->pf_qos || !num_tcs)
720 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
721 vfinfo->pf_qos, vf);
722 else
723 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
724 adapter->default_up, vf);
725
726 if (vfinfo->spoofchk_enabled) {
727 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
728 hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
729 }
730 }
731
732 /* reset multicast table array for vf */
733 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
734
735 /* clear any ipsec table info */
736 ixgbe_ipsec_vf_clear(adapter, vf);
737
738 /* Flush and reset the mta with the new values */
739 ixgbe_set_rx_mode(adapter->netdev);
740
741 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
742 ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
743
744 /* reset VF api back to unknown */
745 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
746
747 /* Restart each queue for given VF */
748 for (queue = 0; queue < q_per_pool; queue++) {
749 unsigned int reg_idx = (vf * q_per_pool) + queue;
750
751 reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
752
753 /* Re-enabling only configured queues */
754 if (reg_val) {
755 reg_val |= IXGBE_TXDCTL_ENABLE;
756 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
757 reg_val &= ~IXGBE_TXDCTL_ENABLE;
758 IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
759 }
760 }
761
762 IXGBE_WRITE_FLUSH(hw);
763 }
764
ixgbe_vf_clear_mbx(struct ixgbe_adapter * adapter,u32 vf)765 static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
766 {
767 struct ixgbe_hw *hw = &adapter->hw;
768 u32 word;
769
770 /* Clear VF's mailbox memory */
771 for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
772 IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
773
774 IXGBE_WRITE_FLUSH(hw);
775 }
776
ixgbe_set_vf_mac(struct ixgbe_adapter * adapter,int vf,unsigned char * mac_addr)777 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
778 int vf, unsigned char *mac_addr)
779 {
780 s32 retval;
781
782 ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
783 retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
784 if (retval >= 0)
785 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
786 ETH_ALEN);
787 else
788 eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
789
790 return retval;
791 }
792
ixgbe_vf_configuration(struct pci_dev * pdev,unsigned int event_mask)793 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
794 {
795 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
796 unsigned int vfn = (event_mask & 0x3f);
797
798 bool enable = ((event_mask & 0x10000000U) != 0);
799
800 if (enable)
801 eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
802
803 return 0;
804 }
805
ixgbe_write_qde(struct ixgbe_adapter * adapter,u32 vf,u32 qde)806 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
807 u32 qde)
808 {
809 struct ixgbe_hw *hw = &adapter->hw;
810 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
811 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
812 int i;
813
814 for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
815 u32 reg;
816
817 /* flush previous write */
818 IXGBE_WRITE_FLUSH(hw);
819
820 /* indicate to hardware that we want to set drop enable */
821 reg = IXGBE_QDE_WRITE | qde;
822 reg |= i << IXGBE_QDE_IDX_SHIFT;
823 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
824 }
825 }
826
827 /**
828 * ixgbe_set_vf_rx_tx - Set VF rx tx
829 * @adapter: Pointer to adapter struct
830 * @vf: VF identifier
831 *
832 * Set or reset correct transmit and receive for vf
833 **/
ixgbe_set_vf_rx_tx(struct ixgbe_adapter * adapter,int vf)834 static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf)
835 {
836 u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
837 struct ixgbe_hw *hw = &adapter->hw;
838 u32 reg_offset, vf_shift;
839
840 vf_shift = vf % 32;
841 reg_offset = vf / 32;
842
843 reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
844 reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
845
846 if (adapter->vfinfo[vf].link_enable) {
847 reg_req_tx = reg_cur_tx | 1 << vf_shift;
848 reg_req_rx = reg_cur_rx | 1 << vf_shift;
849 } else {
850 reg_req_tx = reg_cur_tx & ~(1 << vf_shift);
851 reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
852 }
853
854 /* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
855 * For more info take a look at ixgbe_set_vf_lpe
856 */
857 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
858 struct net_device *dev = adapter->netdev;
859 int pf_max_frame = dev->mtu + ETH_HLEN;
860
861 #if IS_ENABLED(CONFIG_FCOE)
862 if (dev->features & NETIF_F_FCOE_MTU)
863 pf_max_frame = max_t(int, pf_max_frame,
864 IXGBE_FCOE_JUMBO_FRAME_SIZE);
865 #endif /* CONFIG_FCOE */
866
867 if (pf_max_frame > ETH_FRAME_LEN)
868 reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
869 }
870
871 /* Enable/Disable particular VF */
872 if (reg_cur_tx != reg_req_tx)
873 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx);
874 if (reg_cur_rx != reg_req_rx)
875 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx);
876 }
877
ixgbe_vf_reset_msg(struct ixgbe_adapter * adapter,u32 vf)878 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
879 {
880 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
881 struct ixgbe_hw *hw = &adapter->hw;
882 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
883 u32 reg, reg_offset, vf_shift;
884 u32 msgbuf[4] = {0, 0, 0, 0};
885 u8 *addr = (u8 *)(&msgbuf[1]);
886 u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
887 int i;
888
889 e_info(probe, "VF Reset msg received from vf %d\n", vf);
890
891 /* reset the filters for the device */
892 ixgbe_vf_reset_event(adapter, vf);
893
894 ixgbe_vf_clear_mbx(adapter, vf);
895
896 /* set vf mac address */
897 if (!is_zero_ether_addr(vf_mac))
898 ixgbe_set_vf_mac(adapter, vf, vf_mac);
899
900 vf_shift = vf % 32;
901 reg_offset = vf / 32;
902
903 /* force drop enable for all VF Rx queues */
904 reg = IXGBE_QDE_ENABLE;
905 if (adapter->vfinfo[vf].pf_vlan)
906 reg |= IXGBE_QDE_HIDE_VLAN;
907
908 ixgbe_write_qde(adapter, vf, reg);
909
910 ixgbe_set_vf_rx_tx(adapter, vf);
911
912 /* enable VF mailbox for further messages */
913 adapter->vfinfo[vf].clear_to_send = true;
914
915 /* Enable counting of spoofed packets in the SSVPC register */
916 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
917 reg |= BIT(vf_shift);
918 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
919
920 /*
921 * Reset the VFs TDWBAL and TDWBAH registers
922 * which are not cleared by an FLR
923 */
924 for (i = 0; i < q_per_pool; i++) {
925 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
926 IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
927 }
928
929 /* reply to reset with ack and vf mac address */
930 msgbuf[0] = IXGBE_VF_RESET;
931 if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
932 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
933 memcpy(addr, vf_mac, ETH_ALEN);
934 } else {
935 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
936 }
937
938 /*
939 * Piggyback the multicast filter type so VF can compute the
940 * correct vectors
941 */
942 msgbuf[3] = hw->mac.mc_filter_type;
943 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
944
945 return 0;
946 }
947
ixgbe_set_vf_mac_addr(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)948 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
949 u32 *msgbuf, u32 vf)
950 {
951 u8 *new_mac = ((u8 *)(&msgbuf[1]));
952
953 if (!is_valid_ether_addr(new_mac)) {
954 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
955 return -1;
956 }
957
958 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
959 !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
960 e_warn(drv,
961 "VF %d attempted to override administratively set MAC address\n"
962 "Reload the VF driver to resume operations\n",
963 vf);
964 return -1;
965 }
966
967 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
968 }
969
ixgbe_set_vf_vlan_msg(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)970 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
971 u32 *msgbuf, u32 vf)
972 {
973 u32 add = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
974 u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
975 u8 tcs = adapter->hw_tcs;
976
977 if (adapter->vfinfo[vf].pf_vlan || tcs) {
978 e_warn(drv,
979 "VF %d attempted to override administratively set VLAN configuration\n"
980 "Reload the VF driver to resume operations\n",
981 vf);
982 return -1;
983 }
984
985 /* VLAN 0 is a special case, don't allow it to be removed */
986 if (!vid && !add)
987 return 0;
988
989 return ixgbe_set_vf_vlan(adapter, add, vid, vf);
990 }
991
ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)992 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
993 u32 *msgbuf, u32 vf)
994 {
995 u8 *new_mac = ((u8 *)(&msgbuf[1]));
996 int index = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
997 int err;
998
999 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
1000 index > 0) {
1001 e_warn(drv,
1002 "VF %d requested MACVLAN filter but is administratively denied\n",
1003 vf);
1004 return -1;
1005 }
1006
1007 /* An non-zero index indicates the VF is setting a filter */
1008 if (index) {
1009 if (!is_valid_ether_addr(new_mac)) {
1010 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
1011 return -1;
1012 }
1013
1014 /*
1015 * If the VF is allowed to set MAC filters then turn off
1016 * anti-spoofing to avoid false positives.
1017 */
1018 if (adapter->vfinfo[vf].spoofchk_enabled) {
1019 struct ixgbe_hw *hw = &adapter->hw;
1020
1021 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
1022 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1023 }
1024 }
1025
1026 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1027 if (err == -ENOSPC)
1028 e_warn(drv,
1029 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1030 vf);
1031
1032 return err < 0;
1033 }
1034
ixgbe_negotiate_vf_api(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1035 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1036 u32 *msgbuf, u32 vf)
1037 {
1038 int api = msgbuf[1];
1039
1040 switch (api) {
1041 case ixgbe_mbox_api_10:
1042 case ixgbe_mbox_api_11:
1043 case ixgbe_mbox_api_12:
1044 case ixgbe_mbox_api_13:
1045 case ixgbe_mbox_api_14:
1046 adapter->vfinfo[vf].vf_api = api;
1047 return 0;
1048 default:
1049 break;
1050 }
1051
1052 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1053
1054 return -1;
1055 }
1056
ixgbe_get_vf_queues(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1057 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1058 u32 *msgbuf, u32 vf)
1059 {
1060 struct net_device *dev = adapter->netdev;
1061 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1062 unsigned int default_tc = 0;
1063 u8 num_tcs = adapter->hw_tcs;
1064
1065 /* verify the PF is supporting the correct APIs */
1066 switch (adapter->vfinfo[vf].vf_api) {
1067 case ixgbe_mbox_api_20:
1068 case ixgbe_mbox_api_11:
1069 case ixgbe_mbox_api_12:
1070 case ixgbe_mbox_api_13:
1071 case ixgbe_mbox_api_14:
1072 break;
1073 default:
1074 return -1;
1075 }
1076
1077 /* only allow 1 Tx queue for bandwidth limiting */
1078 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1079 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1080
1081 /* if TCs > 1 determine which TC belongs to default user priority */
1082 if (num_tcs > 1)
1083 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1084
1085 /* notify VF of need for VLAN tag stripping, and correct queue */
1086 if (num_tcs)
1087 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1088 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1089 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1090 else
1091 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1092
1093 /* notify VF of default queue */
1094 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1095
1096 return 0;
1097 }
1098
ixgbe_get_vf_reta(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1099 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1100 {
1101 u32 i, j;
1102 u32 *out_buf = &msgbuf[1];
1103 const u8 *reta = adapter->rss_indir_tbl;
1104 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1105
1106 /* Check if operation is permitted */
1107 if (!adapter->vfinfo[vf].rss_query_enabled)
1108 return -EPERM;
1109
1110 /* verify the PF is supporting the correct API */
1111 switch (adapter->vfinfo[vf].vf_api) {
1112 case ixgbe_mbox_api_14:
1113 case ixgbe_mbox_api_13:
1114 case ixgbe_mbox_api_12:
1115 break;
1116 default:
1117 return -EOPNOTSUPP;
1118 }
1119
1120 /* This mailbox command is supported (required) only for 82599 and x540
1121 * VFs which support up to 4 RSS queues. Therefore we will compress the
1122 * RETA by saving only 2 bits from each entry. This way we will be able
1123 * to transfer the whole RETA in a single mailbox operation.
1124 */
1125 for (i = 0; i < reta_size / 16; i++) {
1126 out_buf[i] = 0;
1127 for (j = 0; j < 16; j++)
1128 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1129 }
1130
1131 return 0;
1132 }
1133
ixgbe_get_vf_rss_key(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1134 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1135 u32 *msgbuf, u32 vf)
1136 {
1137 u32 *rss_key = &msgbuf[1];
1138
1139 /* Check if the operation is permitted */
1140 if (!adapter->vfinfo[vf].rss_query_enabled)
1141 return -EPERM;
1142
1143 /* verify the PF is supporting the correct API */
1144 switch (adapter->vfinfo[vf].vf_api) {
1145 case ixgbe_mbox_api_14:
1146 case ixgbe_mbox_api_13:
1147 case ixgbe_mbox_api_12:
1148 break;
1149 default:
1150 return -EOPNOTSUPP;
1151 }
1152
1153 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1154
1155 return 0;
1156 }
1157
ixgbe_update_vf_xcast_mode(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1158 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1159 u32 *msgbuf, u32 vf)
1160 {
1161 struct ixgbe_hw *hw = &adapter->hw;
1162 int xcast_mode = msgbuf[1];
1163 u32 vmolr, fctrl, disable, enable;
1164
1165 /* verify the PF is supporting the correct APIs */
1166 switch (adapter->vfinfo[vf].vf_api) {
1167 case ixgbe_mbox_api_12:
1168 /* promisc introduced in 1.3 version */
1169 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1170 return -EOPNOTSUPP;
1171 fallthrough;
1172 case ixgbe_mbox_api_13:
1173 case ixgbe_mbox_api_14:
1174 break;
1175 default:
1176 return -EOPNOTSUPP;
1177 }
1178
1179 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1180 !adapter->vfinfo[vf].trusted) {
1181 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1182 }
1183
1184 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1185 goto out;
1186
1187 switch (xcast_mode) {
1188 case IXGBEVF_XCAST_MODE_NONE:
1189 disable = IXGBE_VMOLR_ROMPE |
1190 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1191 enable = IXGBE_VMOLR_BAM;
1192 break;
1193 case IXGBEVF_XCAST_MODE_MULTI:
1194 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1195 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1196 break;
1197 case IXGBEVF_XCAST_MODE_ALLMULTI:
1198 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1199 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1200 break;
1201 case IXGBEVF_XCAST_MODE_PROMISC:
1202 if (hw->mac.type <= ixgbe_mac_82599EB)
1203 return -EOPNOTSUPP;
1204
1205 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1206 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1207 /* VF promisc requires PF in promisc */
1208 e_warn(drv,
1209 "Enabling VF promisc requires PF in promisc\n");
1210 return -EPERM;
1211 }
1212
1213 disable = IXGBE_VMOLR_VPE;
1214 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1215 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1216 break;
1217 default:
1218 return -EOPNOTSUPP;
1219 }
1220
1221 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1222 vmolr &= ~disable;
1223 vmolr |= enable;
1224 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1225
1226 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1227
1228 out:
1229 msgbuf[1] = xcast_mode;
1230
1231 return 0;
1232 }
1233
ixgbe_get_vf_link_state(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1234 static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
1235 u32 *msgbuf, u32 vf)
1236 {
1237 u32 *link_state = &msgbuf[1];
1238
1239 /* verify the PF is supporting the correct API */
1240 switch (adapter->vfinfo[vf].vf_api) {
1241 case ixgbe_mbox_api_12:
1242 case ixgbe_mbox_api_13:
1243 case ixgbe_mbox_api_14:
1244 break;
1245 default:
1246 return -EOPNOTSUPP;
1247 }
1248
1249 *link_state = adapter->vfinfo[vf].link_enable;
1250
1251 return 0;
1252 }
1253
ixgbe_rcv_msg_from_vf(struct ixgbe_adapter * adapter,u32 vf)1254 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1255 {
1256 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1257 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1258 struct ixgbe_hw *hw = &adapter->hw;
1259 s32 retval;
1260
1261 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1262
1263 if (retval) {
1264 pr_err("Error receiving message from VF\n");
1265 return retval;
1266 }
1267
1268 /* this is a message we already processed, do nothing */
1269 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1270 return 0;
1271
1272 /* flush the ack before we write any messages back */
1273 IXGBE_WRITE_FLUSH(hw);
1274
1275 if (msgbuf[0] == IXGBE_VF_RESET)
1276 return ixgbe_vf_reset_msg(adapter, vf);
1277
1278 /*
1279 * until the vf completes a virtual function reset it should not be
1280 * allowed to start any configuration.
1281 */
1282 if (!adapter->vfinfo[vf].clear_to_send) {
1283 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1284 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1285 return 0;
1286 }
1287
1288 switch ((msgbuf[0] & 0xFFFF)) {
1289 case IXGBE_VF_SET_MAC_ADDR:
1290 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1291 break;
1292 case IXGBE_VF_SET_MULTICAST:
1293 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1294 break;
1295 case IXGBE_VF_SET_VLAN:
1296 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1297 break;
1298 case IXGBE_VF_SET_LPE:
1299 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1300 break;
1301 case IXGBE_VF_SET_MACVLAN:
1302 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1303 break;
1304 case IXGBE_VF_API_NEGOTIATE:
1305 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1306 break;
1307 case IXGBE_VF_GET_QUEUES:
1308 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1309 break;
1310 case IXGBE_VF_GET_RETA:
1311 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1312 break;
1313 case IXGBE_VF_GET_RSS_KEY:
1314 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1315 break;
1316 case IXGBE_VF_UPDATE_XCAST_MODE:
1317 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1318 break;
1319 case IXGBE_VF_GET_LINK_STATE:
1320 retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf);
1321 break;
1322 case IXGBE_VF_IPSEC_ADD:
1323 retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1324 break;
1325 case IXGBE_VF_IPSEC_DEL:
1326 retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1327 break;
1328 default:
1329 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1330 retval = -EIO;
1331 break;
1332 }
1333
1334 /* notify the VF of the results of what it sent us */
1335 if (retval)
1336 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1337 else
1338 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1339
1340 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1341
1342 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1343
1344 return retval;
1345 }
1346
ixgbe_rcv_ack_from_vf(struct ixgbe_adapter * adapter,u32 vf)1347 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1348 {
1349 struct ixgbe_hw *hw = &adapter->hw;
1350 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1351
1352 /* if device isn't clear to send it shouldn't be reading either */
1353 if (!adapter->vfinfo[vf].clear_to_send)
1354 ixgbe_write_mbx(hw, &msg, 1, vf);
1355 }
1356
ixgbe_msg_task(struct ixgbe_adapter * adapter)1357 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1358 {
1359 struct ixgbe_hw *hw = &adapter->hw;
1360 unsigned long flags;
1361 u32 vf;
1362
1363 spin_lock_irqsave(&adapter->vfs_lock, flags);
1364 for (vf = 0; vf < adapter->num_vfs; vf++) {
1365 /* process any reset requests */
1366 if (!ixgbe_check_for_rst(hw, vf))
1367 ixgbe_vf_reset_event(adapter, vf);
1368
1369 /* process any messages pending */
1370 if (!ixgbe_check_for_msg(hw, vf))
1371 ixgbe_rcv_msg_from_vf(adapter, vf);
1372
1373 /* process any acks */
1374 if (!ixgbe_check_for_ack(hw, vf))
1375 ixgbe_rcv_ack_from_vf(adapter, vf);
1376 }
1377 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1378 }
1379
ixgbe_ping_vf(struct ixgbe_adapter * adapter,int vf)1380 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1381 {
1382 struct ixgbe_hw *hw = &adapter->hw;
1383 u32 ping;
1384
1385 ping = IXGBE_PF_CONTROL_MSG;
1386 if (adapter->vfinfo[vf].clear_to_send)
1387 ping |= IXGBE_VT_MSGTYPE_CTS;
1388 ixgbe_write_mbx(hw, &ping, 1, vf);
1389 }
1390
ixgbe_ping_all_vfs(struct ixgbe_adapter * adapter)1391 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1392 {
1393 struct ixgbe_hw *hw = &adapter->hw;
1394 u32 ping;
1395 int i;
1396
1397 for (i = 0 ; i < adapter->num_vfs; i++) {
1398 ping = IXGBE_PF_CONTROL_MSG;
1399 if (adapter->vfinfo[i].clear_to_send)
1400 ping |= IXGBE_VT_MSGTYPE_CTS;
1401 ixgbe_write_mbx(hw, &ping, 1, i);
1402 }
1403 }
1404
1405 /**
1406 * ixgbe_set_all_vfs - update vfs queues
1407 * @adapter: Pointer to adapter struct
1408 *
1409 * Update setting transmit and receive queues for all vfs
1410 **/
ixgbe_set_all_vfs(struct ixgbe_adapter * adapter)1411 void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1412 {
1413 int i;
1414
1415 for (i = 0 ; i < adapter->num_vfs; i++)
1416 ixgbe_set_vf_link_state(adapter, i,
1417 adapter->vfinfo[i].link_state);
1418 }
1419
ixgbe_ndo_set_vf_mac(struct net_device * netdev,int vf,u8 * mac)1420 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1421 {
1422 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1423 s32 retval;
1424
1425 if (vf >= adapter->num_vfs)
1426 return -EINVAL;
1427
1428 if (is_valid_ether_addr(mac)) {
1429 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1430 mac, vf);
1431 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1432
1433 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1434 if (retval >= 0) {
1435 adapter->vfinfo[vf].pf_set_mac = true;
1436
1437 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1438 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1439 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1440 }
1441 } else {
1442 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1443 }
1444 } else if (is_zero_ether_addr(mac)) {
1445 unsigned char *vf_mac_addr =
1446 adapter->vfinfo[vf].vf_mac_addresses;
1447
1448 /* nothing to do */
1449 if (is_zero_ether_addr(vf_mac_addr))
1450 return 0;
1451
1452 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1453
1454 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1455 if (retval >= 0) {
1456 adapter->vfinfo[vf].pf_set_mac = false;
1457 memcpy(vf_mac_addr, mac, ETH_ALEN);
1458 } else {
1459 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1460 }
1461 } else {
1462 retval = -EINVAL;
1463 }
1464
1465 return retval;
1466 }
1467
ixgbe_enable_port_vlan(struct ixgbe_adapter * adapter,int vf,u16 vlan,u8 qos)1468 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1469 u16 vlan, u8 qos)
1470 {
1471 struct ixgbe_hw *hw = &adapter->hw;
1472 int err;
1473
1474 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1475 if (err)
1476 goto out;
1477
1478 /* Revoke tagless access via VLAN 0 */
1479 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1480
1481 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1482 ixgbe_set_vmolr(hw, vf, false);
1483
1484 /* enable hide vlan on X550 */
1485 if (hw->mac.type >= ixgbe_mac_X550)
1486 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1487 IXGBE_QDE_HIDE_VLAN);
1488
1489 adapter->vfinfo[vf].pf_vlan = vlan;
1490 adapter->vfinfo[vf].pf_qos = qos;
1491 dev_info(&adapter->pdev->dev,
1492 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1493 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1494 dev_warn(&adapter->pdev->dev,
1495 "The VF VLAN has been set, but the PF device is not up.\n");
1496 dev_warn(&adapter->pdev->dev,
1497 "Bring the PF device up before attempting to use the VF device.\n");
1498 }
1499
1500 out:
1501 return err;
1502 }
1503
ixgbe_disable_port_vlan(struct ixgbe_adapter * adapter,int vf)1504 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1505 {
1506 struct ixgbe_hw *hw = &adapter->hw;
1507 int err;
1508
1509 err = ixgbe_set_vf_vlan(adapter, false,
1510 adapter->vfinfo[vf].pf_vlan, vf);
1511 /* Restore tagless access via VLAN 0 */
1512 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1513 ixgbe_clear_vmvir(adapter, vf);
1514 ixgbe_set_vmolr(hw, vf, true);
1515
1516 /* disable hide VLAN on X550 */
1517 if (hw->mac.type >= ixgbe_mac_X550)
1518 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1519
1520 adapter->vfinfo[vf].pf_vlan = 0;
1521 adapter->vfinfo[vf].pf_qos = 0;
1522
1523 return err;
1524 }
1525
ixgbe_ndo_set_vf_vlan(struct net_device * netdev,int vf,u16 vlan,u8 qos,__be16 vlan_proto)1526 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1527 u8 qos, __be16 vlan_proto)
1528 {
1529 int err = 0;
1530 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1531
1532 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1533 return -EINVAL;
1534 if (vlan_proto != htons(ETH_P_8021Q))
1535 return -EPROTONOSUPPORT;
1536 if (vlan || qos) {
1537 /* Check if there is already a port VLAN set, if so
1538 * we have to delete the old one first before we
1539 * can set the new one. The usage model had
1540 * previously assumed the user would delete the
1541 * old port VLAN before setting a new one but this
1542 * is not necessarily the case.
1543 */
1544 if (adapter->vfinfo[vf].pf_vlan)
1545 err = ixgbe_disable_port_vlan(adapter, vf);
1546 if (err)
1547 goto out;
1548 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1549 } else {
1550 err = ixgbe_disable_port_vlan(adapter, vf);
1551 }
1552
1553 out:
1554 return err;
1555 }
1556
ixgbe_link_mbps(struct ixgbe_adapter * adapter)1557 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1558 {
1559 switch (adapter->link_speed) {
1560 case IXGBE_LINK_SPEED_100_FULL:
1561 return 100;
1562 case IXGBE_LINK_SPEED_1GB_FULL:
1563 return 1000;
1564 case IXGBE_LINK_SPEED_10GB_FULL:
1565 return 10000;
1566 default:
1567 return 0;
1568 }
1569 }
1570
ixgbe_set_vf_rate_limit(struct ixgbe_adapter * adapter,int vf)1571 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1572 {
1573 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1574 struct ixgbe_hw *hw = &adapter->hw;
1575 u32 bcnrc_val = 0;
1576 u16 queue, queues_per_pool;
1577 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1578
1579 if (tx_rate) {
1580 /* start with base link speed value */
1581 bcnrc_val = adapter->vf_rate_link_speed;
1582
1583 /* Calculate the rate factor values to set */
1584 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1585 bcnrc_val /= tx_rate;
1586
1587 /* clear everything but the rate factor */
1588 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1589 IXGBE_RTTBCNRC_RF_DEC_MASK;
1590
1591 /* enable the rate scheduler */
1592 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1593 }
1594
1595 /*
1596 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1597 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1598 * and 0x004 otherwise.
1599 */
1600 switch (hw->mac.type) {
1601 case ixgbe_mac_82599EB:
1602 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1603 break;
1604 case ixgbe_mac_X540:
1605 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1606 break;
1607 default:
1608 break;
1609 }
1610
1611 /* determine how many queues per pool based on VMDq mask */
1612 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1613
1614 /* write value for all Tx queues belonging to VF */
1615 for (queue = 0; queue < queues_per_pool; queue++) {
1616 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1617
1618 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1619 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1620 }
1621 }
1622
ixgbe_check_vf_rate_limit(struct ixgbe_adapter * adapter)1623 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1624 {
1625 int i;
1626
1627 /* VF Tx rate limit was not set */
1628 if (!adapter->vf_rate_link_speed)
1629 return;
1630
1631 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1632 adapter->vf_rate_link_speed = 0;
1633 dev_info(&adapter->pdev->dev,
1634 "Link speed has been changed. VF Transmit rate is disabled\n");
1635 }
1636
1637 for (i = 0; i < adapter->num_vfs; i++) {
1638 if (!adapter->vf_rate_link_speed)
1639 adapter->vfinfo[i].tx_rate = 0;
1640
1641 ixgbe_set_vf_rate_limit(adapter, i);
1642 }
1643 }
1644
ixgbe_ndo_set_vf_bw(struct net_device * netdev,int vf,int min_tx_rate,int max_tx_rate)1645 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1646 int max_tx_rate)
1647 {
1648 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1649 int link_speed;
1650
1651 /* verify VF is active */
1652 if (vf >= adapter->num_vfs)
1653 return -EINVAL;
1654
1655 /* verify link is up */
1656 if (!adapter->link_up)
1657 return -EINVAL;
1658
1659 /* verify we are linked at 10Gbps */
1660 link_speed = ixgbe_link_mbps(adapter);
1661 if (link_speed != 10000)
1662 return -EINVAL;
1663
1664 if (min_tx_rate)
1665 return -EINVAL;
1666
1667 /* rate limit cannot be less than 10Mbs or greater than link speed */
1668 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1669 return -EINVAL;
1670
1671 /* store values */
1672 adapter->vf_rate_link_speed = link_speed;
1673 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1674
1675 /* update hardware configuration */
1676 ixgbe_set_vf_rate_limit(adapter, vf);
1677
1678 return 0;
1679 }
1680
ixgbe_ndo_set_vf_spoofchk(struct net_device * netdev,int vf,bool setting)1681 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1682 {
1683 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1684 struct ixgbe_hw *hw = &adapter->hw;
1685
1686 if (vf >= adapter->num_vfs)
1687 return -EINVAL;
1688
1689 adapter->vfinfo[vf].spoofchk_enabled = setting;
1690
1691 /* configure MAC spoofing */
1692 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1693
1694 /* configure VLAN spoofing */
1695 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1696
1697 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1698 * calling set_ethertype_anti_spoofing for each VF in loop below
1699 */
1700 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1701 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1702 (IXGBE_ETQF_FILTER_EN |
1703 IXGBE_ETQF_TX_ANTISPOOF |
1704 ETH_P_LLDP));
1705
1706 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1707 (IXGBE_ETQF_FILTER_EN |
1708 IXGBE_ETQF_TX_ANTISPOOF |
1709 ETH_P_PAUSE));
1710
1711 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1712 }
1713
1714 return 0;
1715 }
1716
1717 /**
1718 * ixgbe_set_vf_link_state - Set link state
1719 * @adapter: Pointer to adapter struct
1720 * @vf: VF identifier
1721 * @state: required link state
1722 *
1723 * Set a link force state on/off a single vf
1724 **/
ixgbe_set_vf_link_state(struct ixgbe_adapter * adapter,int vf,int state)1725 void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1726 {
1727 adapter->vfinfo[vf].link_state = state;
1728
1729 switch (state) {
1730 case IFLA_VF_LINK_STATE_AUTO:
1731 if (test_bit(__IXGBE_DOWN, &adapter->state))
1732 adapter->vfinfo[vf].link_enable = false;
1733 else
1734 adapter->vfinfo[vf].link_enable = true;
1735 break;
1736 case IFLA_VF_LINK_STATE_ENABLE:
1737 adapter->vfinfo[vf].link_enable = true;
1738 break;
1739 case IFLA_VF_LINK_STATE_DISABLE:
1740 adapter->vfinfo[vf].link_enable = false;
1741 break;
1742 }
1743
1744 ixgbe_set_vf_rx_tx(adapter, vf);
1745
1746 /* restart the VF */
1747 adapter->vfinfo[vf].clear_to_send = false;
1748 ixgbe_ping_vf(adapter, vf);
1749 }
1750
1751 /**
1752 * ixgbe_ndo_set_vf_link_state - Set link state
1753 * @netdev: network interface device structure
1754 * @vf: VF identifier
1755 * @state: required link state
1756 *
1757 * Set the link state of a specified VF, regardless of physical link state
1758 **/
ixgbe_ndo_set_vf_link_state(struct net_device * netdev,int vf,int state)1759 int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1760 {
1761 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1762 int ret = 0;
1763
1764 if (vf < 0 || vf >= adapter->num_vfs) {
1765 dev_err(&adapter->pdev->dev,
1766 "NDO set VF link - invalid VF identifier %d\n", vf);
1767 return -EINVAL;
1768 }
1769
1770 switch (state) {
1771 case IFLA_VF_LINK_STATE_ENABLE:
1772 dev_info(&adapter->pdev->dev,
1773 "NDO set VF %d link state %d - not supported\n",
1774 vf, state);
1775 break;
1776 case IFLA_VF_LINK_STATE_DISABLE:
1777 dev_info(&adapter->pdev->dev,
1778 "NDO set VF %d link state disable\n", vf);
1779 ixgbe_set_vf_link_state(adapter, vf, state);
1780 break;
1781 case IFLA_VF_LINK_STATE_AUTO:
1782 dev_info(&adapter->pdev->dev,
1783 "NDO set VF %d link state auto\n", vf);
1784 ixgbe_set_vf_link_state(adapter, vf, state);
1785 break;
1786 default:
1787 dev_err(&adapter->pdev->dev,
1788 "NDO set VF %d - invalid link state %d\n", vf, state);
1789 ret = -EINVAL;
1790 }
1791
1792 return ret;
1793 }
1794
ixgbe_ndo_set_vf_rss_query_en(struct net_device * netdev,int vf,bool setting)1795 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1796 bool setting)
1797 {
1798 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1799
1800 /* This operation is currently supported only for 82599 and x540
1801 * devices.
1802 */
1803 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1804 adapter->hw.mac.type >= ixgbe_mac_X550)
1805 return -EOPNOTSUPP;
1806
1807 if (vf >= adapter->num_vfs)
1808 return -EINVAL;
1809
1810 adapter->vfinfo[vf].rss_query_enabled = setting;
1811
1812 return 0;
1813 }
1814
ixgbe_ndo_set_vf_trust(struct net_device * netdev,int vf,bool setting)1815 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1816 {
1817 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1818
1819 if (vf >= adapter->num_vfs)
1820 return -EINVAL;
1821
1822 /* nothing to do */
1823 if (adapter->vfinfo[vf].trusted == setting)
1824 return 0;
1825
1826 adapter->vfinfo[vf].trusted = setting;
1827
1828 /* reset VF to reconfigure features */
1829 adapter->vfinfo[vf].clear_to_send = false;
1830 ixgbe_ping_vf(adapter, vf);
1831
1832 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1833
1834 return 0;
1835 }
1836
ixgbe_ndo_get_vf_config(struct net_device * netdev,int vf,struct ifla_vf_info * ivi)1837 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1838 int vf, struct ifla_vf_info *ivi)
1839 {
1840 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1841 if (vf >= adapter->num_vfs)
1842 return -EINVAL;
1843 ivi->vf = vf;
1844 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1845 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1846 ivi->min_tx_rate = 0;
1847 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1848 ivi->qos = adapter->vfinfo[vf].pf_qos;
1849 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1850 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1851 ivi->trusted = adapter->vfinfo[vf].trusted;
1852 return 0;
1853 }
1854