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 num_vf_macvlans = hw->mac.num_rar_entries -
32 (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
33 if (!num_vf_macvlans)
34 return;
35
36 mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
37 GFP_KERNEL);
38 if (mv_list) {
39 /* Initialize list of VF macvlans */
40 INIT_LIST_HEAD(&adapter->vf_mvs.l);
41 for (i = 0; i < num_vf_macvlans; i++) {
42 mv_list[i].vf = -1;
43 mv_list[i].free = true;
44 list_add(&mv_list[i].l, &adapter->vf_mvs.l);
45 }
46 adapter->mv_list = mv_list;
47 }
48 }
49
__ixgbe_enable_sriov(struct ixgbe_adapter * adapter,unsigned int num_vfs)50 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
51 unsigned int num_vfs)
52 {
53 struct ixgbe_hw *hw = &adapter->hw;
54 int i;
55
56 if (adapter->xdp_prog) {
57 e_warn(probe, "SRIOV is not supported with XDP\n");
58 return -EINVAL;
59 }
60
61 /* Enable VMDq flag so device will be set in VM mode */
62 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
63 IXGBE_FLAG_VMDQ_ENABLED;
64
65 /* Allocate memory for per VF control structures */
66 adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
67 GFP_KERNEL);
68 if (!adapter->vfinfo)
69 return -ENOMEM;
70
71 adapter->num_vfs = num_vfs;
72
73 ixgbe_alloc_vf_macvlans(adapter, num_vfs);
74 adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
75
76 /* Initialize default switching mode VEB */
77 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
78 adapter->bridge_mode = BRIDGE_MODE_VEB;
79
80 /* limit trafffic classes based on VFs enabled */
81 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
82 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
83 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
84 } else if (num_vfs < 32) {
85 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
86 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
87 } else {
88 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
89 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
90 }
91
92 /* Disable RSC when in SR-IOV mode */
93 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
94 IXGBE_FLAG2_RSC_ENABLED);
95
96 for (i = 0; i < num_vfs; i++) {
97 /* enable spoof checking for all VFs */
98 adapter->vfinfo[i].spoofchk_enabled = true;
99 adapter->vfinfo[i].link_enable = true;
100
101 /* We support VF RSS querying only for 82599 and x540
102 * devices at the moment. These devices share RSS
103 * indirection table and RSS hash key with PF therefore
104 * we want to disable the querying by default.
105 */
106 adapter->vfinfo[i].rss_query_enabled = false;
107
108 /* Untrust all VFs */
109 adapter->vfinfo[i].trusted = false;
110
111 /* set the default xcast mode */
112 adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
113 }
114
115 e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
116 return 0;
117 }
118
119 /**
120 * ixgbe_get_vfs - Find and take references to all vf devices
121 * @adapter: Pointer to adapter struct
122 */
ixgbe_get_vfs(struct ixgbe_adapter * adapter)123 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
124 {
125 struct pci_dev *pdev = adapter->pdev;
126 u16 vendor = pdev->vendor;
127 struct pci_dev *vfdev;
128 int vf = 0;
129 u16 vf_id;
130 int pos;
131
132 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
133 if (!pos)
134 return;
135 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
136
137 vfdev = pci_get_device(vendor, vf_id, NULL);
138 for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
139 if (!vfdev->is_virtfn)
140 continue;
141 if (vfdev->physfn != pdev)
142 continue;
143 if (vf >= adapter->num_vfs)
144 continue;
145 pci_dev_get(vfdev);
146 adapter->vfinfo[vf].vfdev = vfdev;
147 ++vf;
148 }
149 }
150
151 /* Note this function is called when the user wants to enable SR-IOV
152 * VFs using the now deprecated module parameter
153 */
ixgbe_enable_sriov(struct ixgbe_adapter * adapter,unsigned int max_vfs)154 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
155 {
156 int pre_existing_vfs = 0;
157 unsigned int num_vfs;
158
159 pre_existing_vfs = pci_num_vf(adapter->pdev);
160 if (!pre_existing_vfs && !max_vfs)
161 return;
162
163 /* If there are pre-existing VFs then we have to force
164 * use of that many - over ride any module parameter value.
165 * This may result from the user unloading the PF driver
166 * while VFs were assigned to guest VMs or because the VFs
167 * have been created via the new PCI SR-IOV sysfs interface.
168 */
169 if (pre_existing_vfs) {
170 num_vfs = pre_existing_vfs;
171 dev_warn(&adapter->pdev->dev,
172 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
173 } else {
174 int err;
175 /*
176 * The 82599 supports up to 64 VFs per physical function
177 * but this implementation limits allocation to 63 so that
178 * basic networking resources are still available to the
179 * physical function. If the user requests greater than
180 * 63 VFs then it is an error - reset to default of zero.
181 */
182 num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
183
184 err = pci_enable_sriov(adapter->pdev, num_vfs);
185 if (err) {
186 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
187 return;
188 }
189 }
190
191 if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
192 ixgbe_get_vfs(adapter);
193 return;
194 }
195
196 /* If we have gotten to this point then there is no memory available
197 * to manage the VF devices - print message and bail.
198 */
199 e_err(probe, "Unable to allocate memory for VF Data Storage - "
200 "SRIOV disabled\n");
201 ixgbe_disable_sriov(adapter);
202 }
203
204 #endif /* #ifdef CONFIG_PCI_IOV */
ixgbe_disable_sriov(struct ixgbe_adapter * adapter)205 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
206 {
207 unsigned int num_vfs = adapter->num_vfs, vf;
208 unsigned long flags;
209 int rss;
210
211 spin_lock_irqsave(&adapter->vfs_lock, flags);
212 /* set num VFs to 0 to prevent access to vfinfo */
213 adapter->num_vfs = 0;
214 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
215
216 /* put the reference to all of the vf devices */
217 for (vf = 0; vf < num_vfs; ++vf) {
218 struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
219
220 if (!vfdev)
221 continue;
222 adapter->vfinfo[vf].vfdev = NULL;
223 pci_dev_put(vfdev);
224 }
225
226 /* free VF control structures */
227 kfree(adapter->vfinfo);
228 adapter->vfinfo = NULL;
229
230 /* free macvlan list */
231 kfree(adapter->mv_list);
232 adapter->mv_list = NULL;
233
234 /* if SR-IOV is already disabled then there is nothing to do */
235 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
236 return 0;
237
238 #ifdef CONFIG_PCI_IOV
239 /*
240 * If our VFs are assigned we cannot shut down SR-IOV
241 * without causing issues, so just leave the hardware
242 * available but disabled
243 */
244 if (pci_vfs_assigned(adapter->pdev)) {
245 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
246 return -EPERM;
247 }
248 /* disable iov and allow time for transactions to clear */
249 pci_disable_sriov(adapter->pdev);
250 #endif
251
252 /* Disable VMDq flag so device will be set in VM mode */
253 if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
254 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
255 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
256 rss = min_t(int, ixgbe_max_rss_indices(adapter),
257 num_online_cpus());
258 } else {
259 rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
260 }
261
262 adapter->ring_feature[RING_F_VMDQ].offset = 0;
263 adapter->ring_feature[RING_F_RSS].limit = rss;
264
265 /* take a breather then clean up driver data */
266 msleep(100);
267 return 0;
268 }
269
ixgbe_pci_sriov_enable(struct pci_dev * dev,int num_vfs)270 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
271 {
272 #ifdef CONFIG_PCI_IOV
273 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
274 int pre_existing_vfs = pci_num_vf(dev);
275 int err = 0, num_rx_pools, i, limit;
276 u8 num_tc;
277
278 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
279 err = ixgbe_disable_sriov(adapter);
280 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
281 return num_vfs;
282
283 if (err)
284 return err;
285
286 /* While the SR-IOV capability structure reports total VFs to be 64,
287 * we limit the actual number allocated as below based on two factors.
288 * Num_TCs MAX_VFs
289 * 1 63
290 * <=4 31
291 * >4 15
292 * First, we reserve some transmit/receive resources for the PF.
293 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
294 * account for this, so that we don't accidentally allocate more VFs
295 * than we have available pools. The PCI bus driver already checks for
296 * other values out of range.
297 */
298 num_tc = adapter->hw_tcs;
299 num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
300 adapter->num_rx_pools);
301 limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
302 (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
303
304 if (num_vfs > (limit - num_rx_pools)) {
305 e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
306 num_tc, num_rx_pools - 1, limit - num_rx_pools);
307 return -EPERM;
308 }
309
310 err = __ixgbe_enable_sriov(adapter, num_vfs);
311 if (err)
312 return err;
313
314 for (i = 0; i < num_vfs; i++)
315 ixgbe_vf_configuration(dev, (i | 0x10000000));
316
317 /* reset before enabling SRIOV to avoid mailbox issues */
318 ixgbe_sriov_reinit(adapter);
319
320 err = pci_enable_sriov(dev, num_vfs);
321 if (err) {
322 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
323 return err;
324 }
325 ixgbe_get_vfs(adapter);
326
327 return num_vfs;
328 #else
329 return 0;
330 #endif
331 }
332
ixgbe_pci_sriov_disable(struct pci_dev * dev)333 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
334 {
335 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
336 int err;
337 #ifdef CONFIG_PCI_IOV
338 u32 current_flags = adapter->flags;
339 int prev_num_vf = pci_num_vf(dev);
340 #endif
341
342 err = ixgbe_disable_sriov(adapter);
343
344 /* Only reinit if no error and state changed */
345 #ifdef CONFIG_PCI_IOV
346 if (!err && (current_flags != adapter->flags ||
347 prev_num_vf != pci_num_vf(dev)))
348 ixgbe_sriov_reinit(adapter);
349 #endif
350
351 return err;
352 }
353
ixgbe_pci_sriov_configure(struct pci_dev * dev,int num_vfs)354 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
355 {
356 if (num_vfs == 0)
357 return ixgbe_pci_sriov_disable(dev);
358 else
359 return ixgbe_pci_sriov_enable(dev, num_vfs);
360 }
361
ixgbe_set_vf_multicasts(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)362 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
363 u32 *msgbuf, u32 vf)
364 {
365 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
366 >> IXGBE_VT_MSGINFO_SHIFT;
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 = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
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 = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
997 IXGBE_VT_MSGINFO_SHIFT;
998 int err;
999
1000 if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
1001 index > 0) {
1002 e_warn(drv,
1003 "VF %d requested MACVLAN filter but is administratively denied\n",
1004 vf);
1005 return -1;
1006 }
1007
1008 /* An non-zero index indicates the VF is setting a filter */
1009 if (index) {
1010 if (!is_valid_ether_addr(new_mac)) {
1011 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
1012 return -1;
1013 }
1014
1015 /*
1016 * If the VF is allowed to set MAC filters then turn off
1017 * anti-spoofing to avoid false positives.
1018 */
1019 if (adapter->vfinfo[vf].spoofchk_enabled) {
1020 struct ixgbe_hw *hw = &adapter->hw;
1021
1022 hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
1023 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1024 }
1025 }
1026
1027 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1028 if (err == -ENOSPC)
1029 e_warn(drv,
1030 "VF %d has requested a MACVLAN filter but there is no space for it\n",
1031 vf);
1032
1033 return err < 0;
1034 }
1035
ixgbe_negotiate_vf_api(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1036 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1037 u32 *msgbuf, u32 vf)
1038 {
1039 int api = msgbuf[1];
1040
1041 switch (api) {
1042 case ixgbe_mbox_api_10:
1043 case ixgbe_mbox_api_11:
1044 case ixgbe_mbox_api_12:
1045 case ixgbe_mbox_api_13:
1046 case ixgbe_mbox_api_14:
1047 adapter->vfinfo[vf].vf_api = api;
1048 return 0;
1049 default:
1050 break;
1051 }
1052
1053 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1054
1055 return -1;
1056 }
1057
ixgbe_get_vf_queues(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1058 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1059 u32 *msgbuf, u32 vf)
1060 {
1061 struct net_device *dev = adapter->netdev;
1062 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1063 unsigned int default_tc = 0;
1064 u8 num_tcs = adapter->hw_tcs;
1065
1066 /* verify the PF is supporting the correct APIs */
1067 switch (adapter->vfinfo[vf].vf_api) {
1068 case ixgbe_mbox_api_20:
1069 case ixgbe_mbox_api_11:
1070 case ixgbe_mbox_api_12:
1071 case ixgbe_mbox_api_13:
1072 case ixgbe_mbox_api_14:
1073 break;
1074 default:
1075 return -1;
1076 }
1077
1078 /* only allow 1 Tx queue for bandwidth limiting */
1079 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1080 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1081
1082 /* if TCs > 1 determine which TC belongs to default user priority */
1083 if (num_tcs > 1)
1084 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1085
1086 /* notify VF of need for VLAN tag stripping, and correct queue */
1087 if (num_tcs)
1088 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1089 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1090 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1091 else
1092 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1093
1094 /* notify VF of default queue */
1095 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1096
1097 return 0;
1098 }
1099
ixgbe_get_vf_reta(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1100 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1101 {
1102 u32 i, j;
1103 u32 *out_buf = &msgbuf[1];
1104 const u8 *reta = adapter->rss_indir_tbl;
1105 u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1106
1107 /* Check if operation is permitted */
1108 if (!adapter->vfinfo[vf].rss_query_enabled)
1109 return -EPERM;
1110
1111 /* verify the PF is supporting the correct API */
1112 switch (adapter->vfinfo[vf].vf_api) {
1113 case ixgbe_mbox_api_14:
1114 case ixgbe_mbox_api_13:
1115 case ixgbe_mbox_api_12:
1116 break;
1117 default:
1118 return -EOPNOTSUPP;
1119 }
1120
1121 /* This mailbox command is supported (required) only for 82599 and x540
1122 * VFs which support up to 4 RSS queues. Therefore we will compress the
1123 * RETA by saving only 2 bits from each entry. This way we will be able
1124 * to transfer the whole RETA in a single mailbox operation.
1125 */
1126 for (i = 0; i < reta_size / 16; i++) {
1127 out_buf[i] = 0;
1128 for (j = 0; j < 16; j++)
1129 out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1130 }
1131
1132 return 0;
1133 }
1134
ixgbe_get_vf_rss_key(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1135 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1136 u32 *msgbuf, u32 vf)
1137 {
1138 u32 *rss_key = &msgbuf[1];
1139
1140 /* Check if the operation is permitted */
1141 if (!adapter->vfinfo[vf].rss_query_enabled)
1142 return -EPERM;
1143
1144 /* verify the PF is supporting the correct API */
1145 switch (adapter->vfinfo[vf].vf_api) {
1146 case ixgbe_mbox_api_14:
1147 case ixgbe_mbox_api_13:
1148 case ixgbe_mbox_api_12:
1149 break;
1150 default:
1151 return -EOPNOTSUPP;
1152 }
1153
1154 memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1155
1156 return 0;
1157 }
1158
ixgbe_update_vf_xcast_mode(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1159 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1160 u32 *msgbuf, u32 vf)
1161 {
1162 struct ixgbe_hw *hw = &adapter->hw;
1163 int xcast_mode = msgbuf[1];
1164 u32 vmolr, fctrl, disable, enable;
1165
1166 /* verify the PF is supporting the correct APIs */
1167 switch (adapter->vfinfo[vf].vf_api) {
1168 case ixgbe_mbox_api_12:
1169 /* promisc introduced in 1.3 version */
1170 if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1171 return -EOPNOTSUPP;
1172 fallthrough;
1173 case ixgbe_mbox_api_13:
1174 case ixgbe_mbox_api_14:
1175 break;
1176 default:
1177 return -EOPNOTSUPP;
1178 }
1179
1180 if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1181 !adapter->vfinfo[vf].trusted) {
1182 xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1183 }
1184
1185 if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1186 goto out;
1187
1188 switch (xcast_mode) {
1189 case IXGBEVF_XCAST_MODE_NONE:
1190 disable = IXGBE_VMOLR_ROMPE |
1191 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1192 enable = IXGBE_VMOLR_BAM;
1193 break;
1194 case IXGBEVF_XCAST_MODE_MULTI:
1195 disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1196 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1197 break;
1198 case IXGBEVF_XCAST_MODE_ALLMULTI:
1199 disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1200 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1201 break;
1202 case IXGBEVF_XCAST_MODE_PROMISC:
1203 if (hw->mac.type <= ixgbe_mac_82599EB)
1204 return -EOPNOTSUPP;
1205
1206 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1207 if (!(fctrl & IXGBE_FCTRL_UPE)) {
1208 /* VF promisc requires PF in promisc */
1209 e_warn(drv,
1210 "Enabling VF promisc requires PF in promisc\n");
1211 return -EPERM;
1212 }
1213
1214 disable = IXGBE_VMOLR_VPE;
1215 enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1216 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1217 break;
1218 default:
1219 return -EOPNOTSUPP;
1220 }
1221
1222 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1223 vmolr &= ~disable;
1224 vmolr |= enable;
1225 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1226
1227 adapter->vfinfo[vf].xcast_mode = xcast_mode;
1228
1229 out:
1230 msgbuf[1] = xcast_mode;
1231
1232 return 0;
1233 }
1234
ixgbe_get_vf_link_state(struct ixgbe_adapter * adapter,u32 * msgbuf,u32 vf)1235 static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
1236 u32 *msgbuf, u32 vf)
1237 {
1238 u32 *link_state = &msgbuf[1];
1239
1240 /* verify the PF is supporting the correct API */
1241 switch (adapter->vfinfo[vf].vf_api) {
1242 case ixgbe_mbox_api_12:
1243 case ixgbe_mbox_api_13:
1244 case ixgbe_mbox_api_14:
1245 break;
1246 default:
1247 return -EOPNOTSUPP;
1248 }
1249
1250 *link_state = adapter->vfinfo[vf].link_enable;
1251
1252 return 0;
1253 }
1254
ixgbe_rcv_msg_from_vf(struct ixgbe_adapter * adapter,u32 vf)1255 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1256 {
1257 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1258 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1259 struct ixgbe_hw *hw = &adapter->hw;
1260 s32 retval;
1261
1262 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1263
1264 if (retval) {
1265 pr_err("Error receiving message from VF\n");
1266 return retval;
1267 }
1268
1269 /* this is a message we already processed, do nothing */
1270 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1271 return 0;
1272
1273 /* flush the ack before we write any messages back */
1274 IXGBE_WRITE_FLUSH(hw);
1275
1276 if (msgbuf[0] == IXGBE_VF_RESET)
1277 return ixgbe_vf_reset_msg(adapter, vf);
1278
1279 /*
1280 * until the vf completes a virtual function reset it should not be
1281 * allowed to start any configuration.
1282 */
1283 if (!adapter->vfinfo[vf].clear_to_send) {
1284 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1285 ixgbe_write_mbx(hw, msgbuf, 1, vf);
1286 return 0;
1287 }
1288
1289 switch ((msgbuf[0] & 0xFFFF)) {
1290 case IXGBE_VF_SET_MAC_ADDR:
1291 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1292 break;
1293 case IXGBE_VF_SET_MULTICAST:
1294 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1295 break;
1296 case IXGBE_VF_SET_VLAN:
1297 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1298 break;
1299 case IXGBE_VF_SET_LPE:
1300 retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1301 break;
1302 case IXGBE_VF_SET_MACVLAN:
1303 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1304 break;
1305 case IXGBE_VF_API_NEGOTIATE:
1306 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1307 break;
1308 case IXGBE_VF_GET_QUEUES:
1309 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1310 break;
1311 case IXGBE_VF_GET_RETA:
1312 retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1313 break;
1314 case IXGBE_VF_GET_RSS_KEY:
1315 retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1316 break;
1317 case IXGBE_VF_UPDATE_XCAST_MODE:
1318 retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1319 break;
1320 case IXGBE_VF_GET_LINK_STATE:
1321 retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf);
1322 break;
1323 case IXGBE_VF_IPSEC_ADD:
1324 retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1325 break;
1326 case IXGBE_VF_IPSEC_DEL:
1327 retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1328 break;
1329 default:
1330 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1331 retval = IXGBE_ERR_MBX;
1332 break;
1333 }
1334
1335 /* notify the VF of the results of what it sent us */
1336 if (retval)
1337 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1338 else
1339 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1340
1341 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1342
1343 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1344
1345 return retval;
1346 }
1347
ixgbe_rcv_ack_from_vf(struct ixgbe_adapter * adapter,u32 vf)1348 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1349 {
1350 struct ixgbe_hw *hw = &adapter->hw;
1351 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1352
1353 /* if device isn't clear to send it shouldn't be reading either */
1354 if (!adapter->vfinfo[vf].clear_to_send)
1355 ixgbe_write_mbx(hw, &msg, 1, vf);
1356 }
1357
ixgbe_msg_task(struct ixgbe_adapter * adapter)1358 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1359 {
1360 struct ixgbe_hw *hw = &adapter->hw;
1361 unsigned long flags;
1362 u32 vf;
1363
1364 spin_lock_irqsave(&adapter->vfs_lock, flags);
1365 for (vf = 0; vf < adapter->num_vfs; vf++) {
1366 /* process any reset requests */
1367 if (!ixgbe_check_for_rst(hw, vf))
1368 ixgbe_vf_reset_event(adapter, vf);
1369
1370 /* process any messages pending */
1371 if (!ixgbe_check_for_msg(hw, vf))
1372 ixgbe_rcv_msg_from_vf(adapter, vf);
1373
1374 /* process any acks */
1375 if (!ixgbe_check_for_ack(hw, vf))
1376 ixgbe_rcv_ack_from_vf(adapter, vf);
1377 }
1378 spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1379 }
1380
ixgbe_ping_vf(struct ixgbe_adapter * adapter,int vf)1381 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1382 {
1383 struct ixgbe_hw *hw = &adapter->hw;
1384 u32 ping;
1385
1386 ping = IXGBE_PF_CONTROL_MSG;
1387 if (adapter->vfinfo[vf].clear_to_send)
1388 ping |= IXGBE_VT_MSGTYPE_CTS;
1389 ixgbe_write_mbx(hw, &ping, 1, vf);
1390 }
1391
ixgbe_ping_all_vfs(struct ixgbe_adapter * adapter)1392 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1393 {
1394 struct ixgbe_hw *hw = &adapter->hw;
1395 u32 ping;
1396 int i;
1397
1398 for (i = 0 ; i < adapter->num_vfs; i++) {
1399 ping = IXGBE_PF_CONTROL_MSG;
1400 if (adapter->vfinfo[i].clear_to_send)
1401 ping |= IXGBE_VT_MSGTYPE_CTS;
1402 ixgbe_write_mbx(hw, &ping, 1, i);
1403 }
1404 }
1405
1406 /**
1407 * ixgbe_set_all_vfs - update vfs queues
1408 * @adapter: Pointer to adapter struct
1409 *
1410 * Update setting transmit and receive queues for all vfs
1411 **/
ixgbe_set_all_vfs(struct ixgbe_adapter * adapter)1412 void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1413 {
1414 int i;
1415
1416 for (i = 0 ; i < adapter->num_vfs; i++)
1417 ixgbe_set_vf_link_state(adapter, i,
1418 adapter->vfinfo[i].link_state);
1419 }
1420
ixgbe_ndo_set_vf_mac(struct net_device * netdev,int vf,u8 * mac)1421 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1422 {
1423 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1424 s32 retval;
1425
1426 if (vf >= adapter->num_vfs)
1427 return -EINVAL;
1428
1429 if (is_valid_ether_addr(mac)) {
1430 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1431 mac, vf);
1432 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1433
1434 retval = ixgbe_set_vf_mac(adapter, vf, mac);
1435 if (retval >= 0) {
1436 adapter->vfinfo[vf].pf_set_mac = true;
1437
1438 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1439 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1440 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1441 }
1442 } else {
1443 dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1444 }
1445 } else if (is_zero_ether_addr(mac)) {
1446 unsigned char *vf_mac_addr =
1447 adapter->vfinfo[vf].vf_mac_addresses;
1448
1449 /* nothing to do */
1450 if (is_zero_ether_addr(vf_mac_addr))
1451 return 0;
1452
1453 dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1454
1455 retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1456 if (retval >= 0) {
1457 adapter->vfinfo[vf].pf_set_mac = false;
1458 memcpy(vf_mac_addr, mac, ETH_ALEN);
1459 } else {
1460 dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1461 }
1462 } else {
1463 retval = -EINVAL;
1464 }
1465
1466 return retval;
1467 }
1468
ixgbe_enable_port_vlan(struct ixgbe_adapter * adapter,int vf,u16 vlan,u8 qos)1469 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1470 u16 vlan, u8 qos)
1471 {
1472 struct ixgbe_hw *hw = &adapter->hw;
1473 int err;
1474
1475 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1476 if (err)
1477 goto out;
1478
1479 /* Revoke tagless access via VLAN 0 */
1480 ixgbe_set_vf_vlan(adapter, false, 0, vf);
1481
1482 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1483 ixgbe_set_vmolr(hw, vf, false);
1484
1485 /* enable hide vlan on X550 */
1486 if (hw->mac.type >= ixgbe_mac_X550)
1487 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1488 IXGBE_QDE_HIDE_VLAN);
1489
1490 adapter->vfinfo[vf].pf_vlan = vlan;
1491 adapter->vfinfo[vf].pf_qos = qos;
1492 dev_info(&adapter->pdev->dev,
1493 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1494 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1495 dev_warn(&adapter->pdev->dev,
1496 "The VF VLAN has been set, but the PF device is not up.\n");
1497 dev_warn(&adapter->pdev->dev,
1498 "Bring the PF device up before attempting to use the VF device.\n");
1499 }
1500
1501 out:
1502 return err;
1503 }
1504
ixgbe_disable_port_vlan(struct ixgbe_adapter * adapter,int vf)1505 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1506 {
1507 struct ixgbe_hw *hw = &adapter->hw;
1508 int err;
1509
1510 err = ixgbe_set_vf_vlan(adapter, false,
1511 adapter->vfinfo[vf].pf_vlan, vf);
1512 /* Restore tagless access via VLAN 0 */
1513 ixgbe_set_vf_vlan(adapter, true, 0, vf);
1514 ixgbe_clear_vmvir(adapter, vf);
1515 ixgbe_set_vmolr(hw, vf, true);
1516
1517 /* disable hide VLAN on X550 */
1518 if (hw->mac.type >= ixgbe_mac_X550)
1519 ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1520
1521 adapter->vfinfo[vf].pf_vlan = 0;
1522 adapter->vfinfo[vf].pf_qos = 0;
1523
1524 return err;
1525 }
1526
ixgbe_ndo_set_vf_vlan(struct net_device * netdev,int vf,u16 vlan,u8 qos,__be16 vlan_proto)1527 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1528 u8 qos, __be16 vlan_proto)
1529 {
1530 int err = 0;
1531 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1532
1533 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1534 return -EINVAL;
1535 if (vlan_proto != htons(ETH_P_8021Q))
1536 return -EPROTONOSUPPORT;
1537 if (vlan || qos) {
1538 /* Check if there is already a port VLAN set, if so
1539 * we have to delete the old one first before we
1540 * can set the new one. The usage model had
1541 * previously assumed the user would delete the
1542 * old port VLAN before setting a new one but this
1543 * is not necessarily the case.
1544 */
1545 if (adapter->vfinfo[vf].pf_vlan)
1546 err = ixgbe_disable_port_vlan(adapter, vf);
1547 if (err)
1548 goto out;
1549 err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1550 } else {
1551 err = ixgbe_disable_port_vlan(adapter, vf);
1552 }
1553
1554 out:
1555 return err;
1556 }
1557
ixgbe_link_mbps(struct ixgbe_adapter * adapter)1558 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1559 {
1560 switch (adapter->link_speed) {
1561 case IXGBE_LINK_SPEED_100_FULL:
1562 return 100;
1563 case IXGBE_LINK_SPEED_1GB_FULL:
1564 return 1000;
1565 case IXGBE_LINK_SPEED_10GB_FULL:
1566 return 10000;
1567 default:
1568 return 0;
1569 }
1570 }
1571
ixgbe_set_vf_rate_limit(struct ixgbe_adapter * adapter,int vf)1572 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1573 {
1574 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1575 struct ixgbe_hw *hw = &adapter->hw;
1576 u32 bcnrc_val = 0;
1577 u16 queue, queues_per_pool;
1578 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1579
1580 if (tx_rate) {
1581 /* start with base link speed value */
1582 bcnrc_val = adapter->vf_rate_link_speed;
1583
1584 /* Calculate the rate factor values to set */
1585 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1586 bcnrc_val /= tx_rate;
1587
1588 /* clear everything but the rate factor */
1589 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1590 IXGBE_RTTBCNRC_RF_DEC_MASK;
1591
1592 /* enable the rate scheduler */
1593 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1594 }
1595
1596 /*
1597 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1598 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1599 * and 0x004 otherwise.
1600 */
1601 switch (hw->mac.type) {
1602 case ixgbe_mac_82599EB:
1603 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1604 break;
1605 case ixgbe_mac_X540:
1606 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1607 break;
1608 default:
1609 break;
1610 }
1611
1612 /* determine how many queues per pool based on VMDq mask */
1613 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1614
1615 /* write value for all Tx queues belonging to VF */
1616 for (queue = 0; queue < queues_per_pool; queue++) {
1617 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1618
1619 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1620 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1621 }
1622 }
1623
ixgbe_check_vf_rate_limit(struct ixgbe_adapter * adapter)1624 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1625 {
1626 int i;
1627
1628 /* VF Tx rate limit was not set */
1629 if (!adapter->vf_rate_link_speed)
1630 return;
1631
1632 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1633 adapter->vf_rate_link_speed = 0;
1634 dev_info(&adapter->pdev->dev,
1635 "Link speed has been changed. VF Transmit rate is disabled\n");
1636 }
1637
1638 for (i = 0; i < adapter->num_vfs; i++) {
1639 if (!adapter->vf_rate_link_speed)
1640 adapter->vfinfo[i].tx_rate = 0;
1641
1642 ixgbe_set_vf_rate_limit(adapter, i);
1643 }
1644 }
1645
ixgbe_ndo_set_vf_bw(struct net_device * netdev,int vf,int min_tx_rate,int max_tx_rate)1646 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1647 int max_tx_rate)
1648 {
1649 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1650 int link_speed;
1651
1652 /* verify VF is active */
1653 if (vf >= adapter->num_vfs)
1654 return -EINVAL;
1655
1656 /* verify link is up */
1657 if (!adapter->link_up)
1658 return -EINVAL;
1659
1660 /* verify we are linked at 10Gbps */
1661 link_speed = ixgbe_link_mbps(adapter);
1662 if (link_speed != 10000)
1663 return -EINVAL;
1664
1665 if (min_tx_rate)
1666 return -EINVAL;
1667
1668 /* rate limit cannot be less than 10Mbs or greater than link speed */
1669 if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1670 return -EINVAL;
1671
1672 /* store values */
1673 adapter->vf_rate_link_speed = link_speed;
1674 adapter->vfinfo[vf].tx_rate = max_tx_rate;
1675
1676 /* update hardware configuration */
1677 ixgbe_set_vf_rate_limit(adapter, vf);
1678
1679 return 0;
1680 }
1681
ixgbe_ndo_set_vf_spoofchk(struct net_device * netdev,int vf,bool setting)1682 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1683 {
1684 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1685 struct ixgbe_hw *hw = &adapter->hw;
1686
1687 if (vf >= adapter->num_vfs)
1688 return -EINVAL;
1689
1690 adapter->vfinfo[vf].spoofchk_enabled = setting;
1691
1692 /* configure MAC spoofing */
1693 hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1694
1695 /* configure VLAN spoofing */
1696 hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1697
1698 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1699 * calling set_ethertype_anti_spoofing for each VF in loop below
1700 */
1701 if (hw->mac.ops.set_ethertype_anti_spoofing) {
1702 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1703 (IXGBE_ETQF_FILTER_EN |
1704 IXGBE_ETQF_TX_ANTISPOOF |
1705 ETH_P_LLDP));
1706
1707 IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1708 (IXGBE_ETQF_FILTER_EN |
1709 IXGBE_ETQF_TX_ANTISPOOF |
1710 ETH_P_PAUSE));
1711
1712 hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1713 }
1714
1715 return 0;
1716 }
1717
1718 /**
1719 * ixgbe_set_vf_link_state - Set link state
1720 * @adapter: Pointer to adapter struct
1721 * @vf: VF identifier
1722 * @state: required link state
1723 *
1724 * Set a link force state on/off a single vf
1725 **/
ixgbe_set_vf_link_state(struct ixgbe_adapter * adapter,int vf,int state)1726 void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1727 {
1728 adapter->vfinfo[vf].link_state = state;
1729
1730 switch (state) {
1731 case IFLA_VF_LINK_STATE_AUTO:
1732 if (test_bit(__IXGBE_DOWN, &adapter->state))
1733 adapter->vfinfo[vf].link_enable = false;
1734 else
1735 adapter->vfinfo[vf].link_enable = true;
1736 break;
1737 case IFLA_VF_LINK_STATE_ENABLE:
1738 adapter->vfinfo[vf].link_enable = true;
1739 break;
1740 case IFLA_VF_LINK_STATE_DISABLE:
1741 adapter->vfinfo[vf].link_enable = false;
1742 break;
1743 }
1744
1745 ixgbe_set_vf_rx_tx(adapter, vf);
1746
1747 /* restart the VF */
1748 adapter->vfinfo[vf].clear_to_send = false;
1749 ixgbe_ping_vf(adapter, vf);
1750 }
1751
1752 /**
1753 * ixgbe_ndo_set_vf_link_state - Set link state
1754 * @netdev: network interface device structure
1755 * @vf: VF identifier
1756 * @state: required link state
1757 *
1758 * Set the link state of a specified VF, regardless of physical link state
1759 **/
ixgbe_ndo_set_vf_link_state(struct net_device * netdev,int vf,int state)1760 int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1761 {
1762 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1763 int ret = 0;
1764
1765 if (vf < 0 || vf >= adapter->num_vfs) {
1766 dev_err(&adapter->pdev->dev,
1767 "NDO set VF link - invalid VF identifier %d\n", vf);
1768 return -EINVAL;
1769 }
1770
1771 switch (state) {
1772 case IFLA_VF_LINK_STATE_ENABLE:
1773 dev_info(&adapter->pdev->dev,
1774 "NDO set VF %d link state %d - not supported\n",
1775 vf, state);
1776 break;
1777 case IFLA_VF_LINK_STATE_DISABLE:
1778 dev_info(&adapter->pdev->dev,
1779 "NDO set VF %d link state disable\n", vf);
1780 ixgbe_set_vf_link_state(adapter, vf, state);
1781 break;
1782 case IFLA_VF_LINK_STATE_AUTO:
1783 dev_info(&adapter->pdev->dev,
1784 "NDO set VF %d link state auto\n", vf);
1785 ixgbe_set_vf_link_state(adapter, vf, state);
1786 break;
1787 default:
1788 dev_err(&adapter->pdev->dev,
1789 "NDO set VF %d - invalid link state %d\n", vf, state);
1790 ret = -EINVAL;
1791 }
1792
1793 return ret;
1794 }
1795
ixgbe_ndo_set_vf_rss_query_en(struct net_device * netdev,int vf,bool setting)1796 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1797 bool setting)
1798 {
1799 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1800
1801 /* This operation is currently supported only for 82599 and x540
1802 * devices.
1803 */
1804 if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1805 adapter->hw.mac.type >= ixgbe_mac_X550)
1806 return -EOPNOTSUPP;
1807
1808 if (vf >= adapter->num_vfs)
1809 return -EINVAL;
1810
1811 adapter->vfinfo[vf].rss_query_enabled = setting;
1812
1813 return 0;
1814 }
1815
ixgbe_ndo_set_vf_trust(struct net_device * netdev,int vf,bool setting)1816 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1817 {
1818 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1819
1820 if (vf >= adapter->num_vfs)
1821 return -EINVAL;
1822
1823 /* nothing to do */
1824 if (adapter->vfinfo[vf].trusted == setting)
1825 return 0;
1826
1827 adapter->vfinfo[vf].trusted = setting;
1828
1829 /* reset VF to reconfigure features */
1830 adapter->vfinfo[vf].clear_to_send = false;
1831 ixgbe_ping_vf(adapter, vf);
1832
1833 e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1834
1835 return 0;
1836 }
1837
ixgbe_ndo_get_vf_config(struct net_device * netdev,int vf,struct ifla_vf_info * ivi)1838 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1839 int vf, struct ifla_vf_info *ivi)
1840 {
1841 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1842 if (vf >= adapter->num_vfs)
1843 return -EINVAL;
1844 ivi->vf = vf;
1845 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1846 ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1847 ivi->min_tx_rate = 0;
1848 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1849 ivi->qos = adapter->vfinfo[vf].pf_qos;
1850 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1851 ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1852 ivi->trusted = adapter->vfinfo[vf].trusted;
1853 return 0;
1854 }
1855