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[deliverable/linux.git] / drivers / net / ethernet / intel / ixgbe / ixgbe_sriov.c
1 /*******************************************************************************
2
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2013 Intel Corporation.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25
26 *******************************************************************************/
27
28 #include <linux/types.h>
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/netdevice.h>
32 #include <linux/vmalloc.h>
33 #include <linux/string.h>
34 #include <linux/in.h>
35 #include <linux/ip.h>
36 #include <linux/tcp.h>
37 #include <linux/ipv6.h>
38 #ifdef NETIF_F_HW_VLAN_CTAG_TX
39 #include <linux/if_vlan.h>
40 #endif
41
42 #include "ixgbe.h"
43 #include "ixgbe_type.h"
44 #include "ixgbe_sriov.h"
45
46 #ifdef CONFIG_PCI_IOV
47 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
48 {
49 struct ixgbe_hw *hw = &adapter->hw;
50 int num_vf_macvlans, i;
51 struct vf_macvlans *mv_list;
52
53 adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
54 e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
55
56 /* Enable VMDq flag so device will be set in VM mode */
57 adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
58 if (!adapter->ring_feature[RING_F_VMDQ].limit)
59 adapter->ring_feature[RING_F_VMDQ].limit = 1;
60 adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs;
61
62 num_vf_macvlans = hw->mac.num_rar_entries -
63 (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
64
65 adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
66 sizeof(struct vf_macvlans),
67 GFP_KERNEL);
68 if (mv_list) {
69 /* Initialize list of VF macvlans */
70 INIT_LIST_HEAD(&adapter->vf_mvs.l);
71 for (i = 0; i < num_vf_macvlans; i++) {
72 mv_list->vf = -1;
73 mv_list->free = true;
74 mv_list->rar_entry = hw->mac.num_rar_entries -
75 (i + adapter->num_vfs + 1);
76 list_add(&mv_list->l, &adapter->vf_mvs.l);
77 mv_list++;
78 }
79 }
80
81 /* Initialize default switching mode VEB */
82 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
83 adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB;
84
85 /* If call to enable VFs succeeded then allocate memory
86 * for per VF control structures.
87 */
88 adapter->vfinfo =
89 kcalloc(adapter->num_vfs,
90 sizeof(struct vf_data_storage), GFP_KERNEL);
91 if (adapter->vfinfo) {
92 /* limit trafffic classes based on VFs enabled */
93 if ((adapter->hw.mac.type == ixgbe_mac_82599EB) &&
94 (adapter->num_vfs < 16)) {
95 adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
96 adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
97 } else if (adapter->num_vfs < 32) {
98 adapter->dcb_cfg.num_tcs.pg_tcs = 4;
99 adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
100 } else {
101 adapter->dcb_cfg.num_tcs.pg_tcs = 1;
102 adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
103 }
104
105 /* We do not support RSS w/ SR-IOV */
106 adapter->ring_feature[RING_F_RSS].limit = 1;
107
108 /* Disable RSC when in SR-IOV mode */
109 adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
110 IXGBE_FLAG2_RSC_ENABLED);
111
112 /* enable spoof checking for all VFs */
113 for (i = 0; i < adapter->num_vfs; i++)
114 adapter->vfinfo[i].spoofchk_enabled = true;
115 return 0;
116 }
117
118 return -ENOMEM;
119 }
120
121 /* Note this function is called when the user wants to enable SR-IOV
122 * VFs using the now deprecated module parameter
123 */
124 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
125 {
126 int pre_existing_vfs = 0;
127
128 pre_existing_vfs = pci_num_vf(adapter->pdev);
129 if (!pre_existing_vfs && !adapter->num_vfs)
130 return;
131
132 if (!pre_existing_vfs)
133 dev_warn(&adapter->pdev->dev,
134 "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n");
135
136 /* If there are pre-existing VFs then we have to force
137 * use of that many - over ride any module parameter value.
138 * This may result from the user unloading the PF driver
139 * while VFs were assigned to guest VMs or because the VFs
140 * have been created via the new PCI SR-IOV sysfs interface.
141 */
142 if (pre_existing_vfs) {
143 adapter->num_vfs = pre_existing_vfs;
144 dev_warn(&adapter->pdev->dev,
145 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
146 } else {
147 int err;
148 /*
149 * The 82599 supports up to 64 VFs per physical function
150 * but this implementation limits allocation to 63 so that
151 * basic networking resources are still available to the
152 * physical function. If the user requests greater thn
153 * 63 VFs then it is an error - reset to default of zero.
154 */
155 adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63);
156
157 err = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
158 if (err) {
159 e_err(probe, "Failed to enable PCI sriov: %d\n", err);
160 adapter->num_vfs = 0;
161 return;
162 }
163 }
164
165 if (!__ixgbe_enable_sriov(adapter))
166 return;
167
168 /* If we have gotten to this point then there is no memory available
169 * to manage the VF devices - print message and bail.
170 */
171 e_err(probe, "Unable to allocate memory for VF Data Storage - "
172 "SRIOV disabled\n");
173 ixgbe_disable_sriov(adapter);
174 }
175
176 #endif /* #ifdef CONFIG_PCI_IOV */
177 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
178 {
179 struct ixgbe_hw *hw = &adapter->hw;
180 u32 gpie;
181 u32 vmdctl;
182 int rss;
183
184 /* set num VFs to 0 to prevent access to vfinfo */
185 adapter->num_vfs = 0;
186
187 /* free VF control structures */
188 kfree(adapter->vfinfo);
189 adapter->vfinfo = NULL;
190
191 /* free macvlan list */
192 kfree(adapter->mv_list);
193 adapter->mv_list = NULL;
194
195 /* if SR-IOV is already disabled then there is nothing to do */
196 if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
197 return 0;
198
199 #ifdef CONFIG_PCI_IOV
200 /*
201 * If our VFs are assigned we cannot shut down SR-IOV
202 * without causing issues, so just leave the hardware
203 * available but disabled
204 */
205 if (pci_vfs_assigned(adapter->pdev)) {
206 e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
207 return -EPERM;
208 }
209 /* disable iov and allow time for transactions to clear */
210 pci_disable_sriov(adapter->pdev);
211 #endif
212
213 /* turn off device IOV mode */
214 IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0);
215 gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
216 gpie &= ~IXGBE_GPIE_VTMODE_MASK;
217 IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
218
219 /* set default pool back to 0 */
220 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
221 vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
222 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
223 IXGBE_WRITE_FLUSH(hw);
224
225 /* Disable VMDq flag so device will be set in VM mode */
226 if (adapter->ring_feature[RING_F_VMDQ].limit == 1)
227 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
228 adapter->ring_feature[RING_F_VMDQ].offset = 0;
229
230 rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus());
231 adapter->ring_feature[RING_F_RSS].limit = rss;
232
233 /* take a breather then clean up driver data */
234 msleep(100);
235
236 adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
237 return 0;
238 }
239
240 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
241 {
242 #ifdef CONFIG_PCI_IOV
243 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
244 int err = 0;
245 int i;
246 int pre_existing_vfs = pci_num_vf(dev);
247
248 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
249 err = ixgbe_disable_sriov(adapter);
250 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
251 goto out;
252
253 if (err)
254 goto err_out;
255
256 /* While the SR-IOV capability structure reports total VFs to be
257 * 64 we limit the actual number that can be allocated to 63 so
258 * that some transmit/receive resources can be reserved to the
259 * PF. The PCI bus driver already checks for other values out of
260 * range.
261 */
262 if (num_vfs > 63) {
263 err = -EPERM;
264 goto err_out;
265 }
266
267 adapter->num_vfs = num_vfs;
268
269 err = __ixgbe_enable_sriov(adapter);
270 if (err)
271 goto err_out;
272
273 for (i = 0; i < adapter->num_vfs; i++)
274 ixgbe_vf_configuration(dev, (i | 0x10000000));
275
276 err = pci_enable_sriov(dev, num_vfs);
277 if (err) {
278 e_dev_warn("Failed to enable PCI sriov: %d\n", err);
279 goto err_out;
280 }
281 ixgbe_sriov_reinit(adapter);
282
283 out:
284 return num_vfs;
285
286 err_out:
287 return err;
288 #endif
289 return 0;
290 }
291
292 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
293 {
294 struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
295 int err;
296 u32 current_flags = adapter->flags;
297
298 err = ixgbe_disable_sriov(adapter);
299
300 /* Only reinit if no error and state changed */
301 if (!err && current_flags != adapter->flags) {
302 /* ixgbe_disable_sriov() doesn't clear VMDQ flag */
303 adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
304 #ifdef CONFIG_PCI_IOV
305 ixgbe_sriov_reinit(adapter);
306 #endif
307 }
308
309 return err;
310 }
311
312 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
313 {
314 if (num_vfs == 0)
315 return ixgbe_pci_sriov_disable(dev);
316 else
317 return ixgbe_pci_sriov_enable(dev, num_vfs);
318 }
319
320 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
321 u32 *msgbuf, u32 vf)
322 {
323 int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
324 >> IXGBE_VT_MSGINFO_SHIFT;
325 u16 *hash_list = (u16 *)&msgbuf[1];
326 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
327 struct ixgbe_hw *hw = &adapter->hw;
328 int i;
329 u32 vector_bit;
330 u32 vector_reg;
331 u32 mta_reg;
332
333 /* only so many hash values supported */
334 entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
335
336 /*
337 * salt away the number of multi cast addresses assigned
338 * to this VF for later use to restore when the PF multi cast
339 * list changes
340 */
341 vfinfo->num_vf_mc_hashes = entries;
342
343 /*
344 * VFs are limited to using the MTA hash table for their multicast
345 * addresses
346 */
347 for (i = 0; i < entries; i++) {
348 vfinfo->vf_mc_hashes[i] = hash_list[i];
349 }
350
351 for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
352 vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
353 vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
354 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
355 mta_reg |= (1 << vector_bit);
356 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
357 }
358
359 return 0;
360 }
361
362 static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter)
363 {
364 struct ixgbe_hw *hw = &adapter->hw;
365 struct list_head *pos;
366 struct vf_macvlans *entry;
367
368 list_for_each(pos, &adapter->vf_mvs.l) {
369 entry = list_entry(pos, struct vf_macvlans, l);
370 if (!entry->free)
371 hw->mac.ops.set_rar(hw, entry->rar_entry,
372 entry->vf_macvlan,
373 entry->vf, IXGBE_RAH_AV);
374 }
375 }
376
377 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
378 {
379 struct ixgbe_hw *hw = &adapter->hw;
380 struct vf_data_storage *vfinfo;
381 int i, j;
382 u32 vector_bit;
383 u32 vector_reg;
384 u32 mta_reg;
385
386 for (i = 0; i < adapter->num_vfs; i++) {
387 vfinfo = &adapter->vfinfo[i];
388 for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
389 hw->addr_ctrl.mta_in_use++;
390 vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
391 vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
392 mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
393 mta_reg |= (1 << vector_bit);
394 IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
395 }
396 }
397
398 /* Restore any VF macvlans */
399 ixgbe_restore_vf_macvlans(adapter);
400 }
401
402 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
403 u32 vf)
404 {
405 /* VLAN 0 is a special case, don't allow it to be removed */
406 if (!vid && !add)
407 return 0;
408
409 return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
410 }
411
412 static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
413 {
414 struct ixgbe_hw *hw = &adapter->hw;
415 int max_frame = msgbuf[1];
416 u32 max_frs;
417
418 /*
419 * For 82599EB we have to keep all PFs and VFs operating with
420 * the same max_frame value in order to avoid sending an oversize
421 * frame to a VF. In order to guarantee this is handled correctly
422 * for all cases we have several special exceptions to take into
423 * account before we can enable the VF for receive
424 */
425 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
426 struct net_device *dev = adapter->netdev;
427 int pf_max_frame = dev->mtu + ETH_HLEN;
428 u32 reg_offset, vf_shift, vfre;
429 s32 err = 0;
430
431 #ifdef CONFIG_FCOE
432 if (dev->features & NETIF_F_FCOE_MTU)
433 pf_max_frame = max_t(int, pf_max_frame,
434 IXGBE_FCOE_JUMBO_FRAME_SIZE);
435
436 #endif /* CONFIG_FCOE */
437 switch (adapter->vfinfo[vf].vf_api) {
438 case ixgbe_mbox_api_11:
439 /*
440 * Version 1.1 supports jumbo frames on VFs if PF has
441 * jumbo frames enabled which means legacy VFs are
442 * disabled
443 */
444 if (pf_max_frame > ETH_FRAME_LEN)
445 break;
446 default:
447 /*
448 * If the PF or VF are running w/ jumbo frames enabled
449 * we need to shut down the VF Rx path as we cannot
450 * support jumbo frames on legacy VFs
451 */
452 if ((pf_max_frame > ETH_FRAME_LEN) ||
453 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
454 err = -EINVAL;
455 break;
456 }
457
458 /* determine VF receive enable location */
459 vf_shift = vf % 32;
460 reg_offset = vf / 32;
461
462 /* enable or disable receive depending on error */
463 vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
464 if (err)
465 vfre &= ~(1 << vf_shift);
466 else
467 vfre |= 1 << vf_shift;
468 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
469
470 if (err) {
471 e_err(drv, "VF max_frame %d out of range\n", max_frame);
472 return err;
473 }
474 }
475
476 /* MTU < 68 is an error and causes problems on some kernels */
477 if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
478 e_err(drv, "VF max_frame %d out of range\n", max_frame);
479 return -EINVAL;
480 }
481
482 /* pull current max frame size from hardware */
483 max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
484 max_frs &= IXGBE_MHADD_MFS_MASK;
485 max_frs >>= IXGBE_MHADD_MFS_SHIFT;
486
487 if (max_frs < max_frame) {
488 max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
489 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
490 }
491
492 e_info(hw, "VF requests change max MTU to %d\n", max_frame);
493
494 return 0;
495 }
496
497 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
498 {
499 u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
500 vmolr |= (IXGBE_VMOLR_ROMPE |
501 IXGBE_VMOLR_BAM);
502 if (aupe)
503 vmolr |= IXGBE_VMOLR_AUPE;
504 else
505 vmolr &= ~IXGBE_VMOLR_AUPE;
506 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
507 }
508
509 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
510 {
511 struct ixgbe_hw *hw = &adapter->hw;
512
513 IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
514 }
515 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
516 {
517 struct ixgbe_hw *hw = &adapter->hw;
518 struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
519 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
520 u8 num_tcs = netdev_get_num_tc(adapter->netdev);
521
522 /* add PF assigned VLAN or VLAN 0 */
523 ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
524
525 /* reset offloads to defaults */
526 ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
527
528 /* set outgoing tags for VFs */
529 if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
530 ixgbe_clear_vmvir(adapter, vf);
531 } else {
532 if (vfinfo->pf_qos || !num_tcs)
533 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
534 vfinfo->pf_qos, vf);
535 else
536 ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
537 adapter->default_up, vf);
538
539 if (vfinfo->spoofchk_enabled)
540 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
541 }
542
543 /* reset multicast table array for vf */
544 adapter->vfinfo[vf].num_vf_mc_hashes = 0;
545
546 /* Flush and reset the mta with the new values */
547 ixgbe_set_rx_mode(adapter->netdev);
548
549 hw->mac.ops.clear_rar(hw, rar_entry);
550
551 /* reset VF api back to unknown */
552 adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
553 }
554
555 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
556 int vf, unsigned char *mac_addr)
557 {
558 struct ixgbe_hw *hw = &adapter->hw;
559 int rar_entry = hw->mac.num_rar_entries - (vf + 1);
560
561 memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
562 hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
563
564 return 0;
565 }
566
567 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
568 int vf, int index, unsigned char *mac_addr)
569 {
570 struct ixgbe_hw *hw = &adapter->hw;
571 struct list_head *pos;
572 struct vf_macvlans *entry;
573
574 if (index <= 1) {
575 list_for_each(pos, &adapter->vf_mvs.l) {
576 entry = list_entry(pos, struct vf_macvlans, l);
577 if (entry->vf == vf) {
578 entry->vf = -1;
579 entry->free = true;
580 entry->is_macvlan = false;
581 hw->mac.ops.clear_rar(hw, entry->rar_entry);
582 }
583 }
584 }
585
586 /*
587 * If index was zero then we were asked to clear the uc list
588 * for the VF. We're done.
589 */
590 if (!index)
591 return 0;
592
593 entry = NULL;
594
595 list_for_each(pos, &adapter->vf_mvs.l) {
596 entry = list_entry(pos, struct vf_macvlans, l);
597 if (entry->free)
598 break;
599 }
600
601 /*
602 * If we traversed the entire list and didn't find a free entry
603 * then we're out of space on the RAR table. Also entry may
604 * be NULL because the original memory allocation for the list
605 * failed, which is not fatal but does mean we can't support
606 * VF requests for MACVLAN because we couldn't allocate
607 * memory for the list management required.
608 */
609 if (!entry || !entry->free)
610 return -ENOSPC;
611
612 entry->free = false;
613 entry->is_macvlan = true;
614 entry->vf = vf;
615 memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
616
617 hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV);
618
619 return 0;
620 }
621
622 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
623 {
624 unsigned char vf_mac_addr[6];
625 struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
626 unsigned int vfn = (event_mask & 0x3f);
627
628 bool enable = ((event_mask & 0x10000000U) != 0);
629
630 if (enable) {
631 eth_zero_addr(vf_mac_addr);
632 memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
633 }
634
635 return 0;
636 }
637
638 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
639 {
640 struct ixgbe_hw *hw = &adapter->hw;
641 unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
642 u32 reg, msgbuf[4];
643 u32 reg_offset, vf_shift;
644 u8 *addr = (u8 *)(&msgbuf[1]);
645
646 e_info(probe, "VF Reset msg received from vf %d\n", vf);
647
648 /* reset the filters for the device */
649 ixgbe_vf_reset_event(adapter, vf);
650
651 /* set vf mac address */
652 if (!is_zero_ether_addr(vf_mac))
653 ixgbe_set_vf_mac(adapter, vf, vf_mac);
654
655 vf_shift = vf % 32;
656 reg_offset = vf / 32;
657
658 /* enable transmit for vf */
659 reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
660 reg |= 1 << vf_shift;
661 IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
662
663 /* enable receive for vf */
664 reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
665 reg |= 1 << vf_shift;
666 /*
667 * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
668 * For more info take a look at ixgbe_set_vf_lpe
669 */
670 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
671 struct net_device *dev = adapter->netdev;
672 int pf_max_frame = dev->mtu + ETH_HLEN;
673
674 #ifdef CONFIG_FCOE
675 if (dev->features & NETIF_F_FCOE_MTU)
676 pf_max_frame = max_t(int, pf_max_frame,
677 IXGBE_FCOE_JUMBO_FRAME_SIZE);
678
679 #endif /* CONFIG_FCOE */
680 if (pf_max_frame > ETH_FRAME_LEN)
681 reg &= ~(1 << vf_shift);
682 }
683 IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
684
685 /* enable VF mailbox for further messages */
686 adapter->vfinfo[vf].clear_to_send = true;
687
688 /* Enable counting of spoofed packets in the SSVPC register */
689 reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
690 reg |= (1 << vf_shift);
691 IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
692
693 /* reply to reset with ack and vf mac address */
694 msgbuf[0] = IXGBE_VF_RESET;
695 if (!is_zero_ether_addr(vf_mac)) {
696 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
697 memcpy(addr, vf_mac, ETH_ALEN);
698 } else {
699 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
700 dev_warn(&adapter->pdev->dev,
701 "VF %d has no MAC address assigned, you may have to assign one manually\n",
702 vf);
703 }
704
705 /*
706 * Piggyback the multicast filter type so VF can compute the
707 * correct vectors
708 */
709 msgbuf[3] = hw->mac.mc_filter_type;
710 ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
711
712 return 0;
713 }
714
715 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
716 u32 *msgbuf, u32 vf)
717 {
718 u8 *new_mac = ((u8 *)(&msgbuf[1]));
719
720 if (!is_valid_ether_addr(new_mac)) {
721 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
722 return -1;
723 }
724
725 if (adapter->vfinfo[vf].pf_set_mac &&
726 memcmp(adapter->vfinfo[vf].vf_mac_addresses, new_mac,
727 ETH_ALEN)) {
728 e_warn(drv,
729 "VF %d attempted to override administratively set MAC address\n"
730 "Reload the VF driver to resume operations\n",
731 vf);
732 return -1;
733 }
734
735 return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
736 }
737
738 static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan)
739 {
740 u32 vlvf;
741 s32 regindex;
742
743 /* short cut the special case */
744 if (vlan == 0)
745 return 0;
746
747 /* Search for the vlan id in the VLVF entries */
748 for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) {
749 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex));
750 if ((vlvf & VLAN_VID_MASK) == vlan)
751 break;
752 }
753
754 /* Return a negative value if not found */
755 if (regindex >= IXGBE_VLVF_ENTRIES)
756 regindex = -1;
757
758 return regindex;
759 }
760
761 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
762 u32 *msgbuf, u32 vf)
763 {
764 struct ixgbe_hw *hw = &adapter->hw;
765 int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
766 int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
767 int err;
768 s32 reg_ndx;
769 u32 vlvf;
770 u32 bits;
771 u8 tcs = netdev_get_num_tc(adapter->netdev);
772
773 if (adapter->vfinfo[vf].pf_vlan || tcs) {
774 e_warn(drv,
775 "VF %d attempted to override administratively set VLAN configuration\n"
776 "Reload the VF driver to resume operations\n",
777 vf);
778 return -1;
779 }
780
781 if (add)
782 adapter->vfinfo[vf].vlan_count++;
783 else if (adapter->vfinfo[vf].vlan_count)
784 adapter->vfinfo[vf].vlan_count--;
785
786 /* in case of promiscuous mode any VLAN filter set for a VF must
787 * also have the PF pool added to it.
788 */
789 if (add && adapter->netdev->flags & IFF_PROMISC)
790 err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0));
791
792 err = ixgbe_set_vf_vlan(adapter, add, vid, vf);
793 if (!err && adapter->vfinfo[vf].spoofchk_enabled)
794 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
795
796 /* Go through all the checks to see if the VLAN filter should
797 * be wiped completely.
798 */
799 if (!add && adapter->netdev->flags & IFF_PROMISC) {
800 reg_ndx = ixgbe_find_vlvf_entry(hw, vid);
801 if (reg_ndx < 0)
802 goto out;
803 vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx));
804 /* See if any other pools are set for this VLAN filter
805 * entry other than the PF.
806 */
807 if (VMDQ_P(0) < 32) {
808 bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2));
809 bits &= ~(1 << VMDQ_P(0));
810 bits |= IXGBE_READ_REG(hw,
811 IXGBE_VLVFB(reg_ndx * 2) + 1);
812 } else {
813 bits = IXGBE_READ_REG(hw,
814 IXGBE_VLVFB(reg_ndx * 2) + 1);
815 bits &= ~(1 << (VMDQ_P(0) - 32));
816 bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2));
817 }
818
819 /* If the filter was removed then ensure PF pool bit
820 * is cleared if the PF only added itself to the pool
821 * because the PF is in promiscuous mode.
822 */
823 if ((vlvf & VLAN_VID_MASK) == vid &&
824 !test_bit(vid, adapter->active_vlans) && !bits)
825 ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0));
826 }
827
828 out:
829
830 return err;
831 }
832
833 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
834 u32 *msgbuf, u32 vf)
835 {
836 u8 *new_mac = ((u8 *)(&msgbuf[1]));
837 int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
838 IXGBE_VT_MSGINFO_SHIFT;
839 int err;
840
841 if (adapter->vfinfo[vf].pf_set_mac && index > 0) {
842 e_warn(drv,
843 "VF %d requested MACVLAN filter but is administratively denied\n",
844 vf);
845 return -1;
846 }
847
848 /* An non-zero index indicates the VF is setting a filter */
849 if (index) {
850 if (!is_valid_ether_addr(new_mac)) {
851 e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
852 return -1;
853 }
854
855 /*
856 * If the VF is allowed to set MAC filters then turn off
857 * anti-spoofing to avoid false positives.
858 */
859 if (adapter->vfinfo[vf].spoofchk_enabled)
860 ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false);
861 }
862
863 err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
864 if (err == -ENOSPC)
865 e_warn(drv,
866 "VF %d has requested a MACVLAN filter but there is no space for it\n",
867 vf);
868
869 return err < 0;
870 }
871
872 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
873 u32 *msgbuf, u32 vf)
874 {
875 int api = msgbuf[1];
876
877 switch (api) {
878 case ixgbe_mbox_api_10:
879 case ixgbe_mbox_api_11:
880 adapter->vfinfo[vf].vf_api = api;
881 return 0;
882 default:
883 break;
884 }
885
886 e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
887
888 return -1;
889 }
890
891 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
892 u32 *msgbuf, u32 vf)
893 {
894 struct net_device *dev = adapter->netdev;
895 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
896 unsigned int default_tc = 0;
897 u8 num_tcs = netdev_get_num_tc(dev);
898
899 /* verify the PF is supporting the correct APIs */
900 switch (adapter->vfinfo[vf].vf_api) {
901 case ixgbe_mbox_api_20:
902 case ixgbe_mbox_api_11:
903 break;
904 default:
905 return -1;
906 }
907
908 /* only allow 1 Tx queue for bandwidth limiting */
909 msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
910 msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
911
912 /* if TCs > 1 determine which TC belongs to default user priority */
913 if (num_tcs > 1)
914 default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
915
916 /* notify VF of need for VLAN tag stripping, and correct queue */
917 if (num_tcs)
918 msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
919 else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
920 msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
921 else
922 msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
923
924 /* notify VF of default queue */
925 msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
926
927 return 0;
928 }
929
930 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
931 {
932 u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
933 u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
934 struct ixgbe_hw *hw = &adapter->hw;
935 s32 retval;
936
937 retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
938
939 if (retval) {
940 pr_err("Error receiving message from VF\n");
941 return retval;
942 }
943
944 /* this is a message we already processed, do nothing */
945 if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
946 return retval;
947
948 /* flush the ack before we write any messages back */
949 IXGBE_WRITE_FLUSH(hw);
950
951 if (msgbuf[0] == IXGBE_VF_RESET)
952 return ixgbe_vf_reset_msg(adapter, vf);
953
954 /*
955 * until the vf completes a virtual function reset it should not be
956 * allowed to start any configuration.
957 */
958 if (!adapter->vfinfo[vf].clear_to_send) {
959 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
960 ixgbe_write_mbx(hw, msgbuf, 1, vf);
961 return retval;
962 }
963
964 switch ((msgbuf[0] & 0xFFFF)) {
965 case IXGBE_VF_SET_MAC_ADDR:
966 retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
967 break;
968 case IXGBE_VF_SET_MULTICAST:
969 retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
970 break;
971 case IXGBE_VF_SET_VLAN:
972 retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
973 break;
974 case IXGBE_VF_SET_LPE:
975 retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf);
976 break;
977 case IXGBE_VF_SET_MACVLAN:
978 retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
979 break;
980 case IXGBE_VF_API_NEGOTIATE:
981 retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
982 break;
983 case IXGBE_VF_GET_QUEUES:
984 retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
985 break;
986 default:
987 e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
988 retval = IXGBE_ERR_MBX;
989 break;
990 }
991
992 /* notify the VF of the results of what it sent us */
993 if (retval)
994 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
995 else
996 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
997
998 msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
999
1000 ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1001
1002 return retval;
1003 }
1004
1005 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1006 {
1007 struct ixgbe_hw *hw = &adapter->hw;
1008 u32 msg = IXGBE_VT_MSGTYPE_NACK;
1009
1010 /* if device isn't clear to send it shouldn't be reading either */
1011 if (!adapter->vfinfo[vf].clear_to_send)
1012 ixgbe_write_mbx(hw, &msg, 1, vf);
1013 }
1014
1015 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1016 {
1017 struct ixgbe_hw *hw = &adapter->hw;
1018 u32 vf;
1019
1020 for (vf = 0; vf < adapter->num_vfs; vf++) {
1021 /* process any reset requests */
1022 if (!ixgbe_check_for_rst(hw, vf))
1023 ixgbe_vf_reset_event(adapter, vf);
1024
1025 /* process any messages pending */
1026 if (!ixgbe_check_for_msg(hw, vf))
1027 ixgbe_rcv_msg_from_vf(adapter, vf);
1028
1029 /* process any acks */
1030 if (!ixgbe_check_for_ack(hw, vf))
1031 ixgbe_rcv_ack_from_vf(adapter, vf);
1032 }
1033 }
1034
1035 void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
1036 {
1037 struct ixgbe_hw *hw = &adapter->hw;
1038
1039 /* disable transmit and receive for all vfs */
1040 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
1041 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
1042
1043 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
1044 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
1045 }
1046
1047 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1048 {
1049 struct ixgbe_hw *hw = &adapter->hw;
1050 u32 ping;
1051 int i;
1052
1053 for (i = 0 ; i < adapter->num_vfs; i++) {
1054 ping = IXGBE_PF_CONTROL_MSG;
1055 if (adapter->vfinfo[i].clear_to_send)
1056 ping |= IXGBE_VT_MSGTYPE_CTS;
1057 ixgbe_write_mbx(hw, &ping, 1, i);
1058 }
1059 }
1060
1061 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1062 {
1063 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1064 if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
1065 return -EINVAL;
1066 adapter->vfinfo[vf].pf_set_mac = true;
1067 dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
1068 dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
1069 " change effective.");
1070 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1071 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
1072 " but the PF device is not up.\n");
1073 dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
1074 " attempting to use the VF device.\n");
1075 }
1076 return ixgbe_set_vf_mac(adapter, vf, mac);
1077 }
1078
1079 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
1080 {
1081 int err = 0;
1082 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1083 struct ixgbe_hw *hw = &adapter->hw;
1084
1085 if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1086 return -EINVAL;
1087 if (vlan || qos) {
1088 if (adapter->vfinfo[vf].pf_vlan)
1089 err = ixgbe_set_vf_vlan(adapter, false,
1090 adapter->vfinfo[vf].pf_vlan,
1091 vf);
1092 if (err)
1093 goto out;
1094 err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1095 if (err)
1096 goto out;
1097 ixgbe_set_vmvir(adapter, vlan, qos, vf);
1098 ixgbe_set_vmolr(hw, vf, false);
1099 if (adapter->vfinfo[vf].spoofchk_enabled)
1100 hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
1101 adapter->vfinfo[vf].vlan_count++;
1102 adapter->vfinfo[vf].pf_vlan = vlan;
1103 adapter->vfinfo[vf].pf_qos = qos;
1104 dev_info(&adapter->pdev->dev,
1105 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1106 if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1107 dev_warn(&adapter->pdev->dev,
1108 "The VF VLAN has been set,"
1109 " but the PF device is not up.\n");
1110 dev_warn(&adapter->pdev->dev,
1111 "Bring the PF device up before"
1112 " attempting to use the VF device.\n");
1113 }
1114 } else {
1115 err = ixgbe_set_vf_vlan(adapter, false,
1116 adapter->vfinfo[vf].pf_vlan, vf);
1117 ixgbe_clear_vmvir(adapter, vf);
1118 ixgbe_set_vmolr(hw, vf, true);
1119 hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1120 if (adapter->vfinfo[vf].vlan_count)
1121 adapter->vfinfo[vf].vlan_count--;
1122 adapter->vfinfo[vf].pf_vlan = 0;
1123 adapter->vfinfo[vf].pf_qos = 0;
1124 }
1125 out:
1126 return err;
1127 }
1128
1129 static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1130 {
1131 switch (adapter->link_speed) {
1132 case IXGBE_LINK_SPEED_100_FULL:
1133 return 100;
1134 case IXGBE_LINK_SPEED_1GB_FULL:
1135 return 1000;
1136 case IXGBE_LINK_SPEED_10GB_FULL:
1137 return 10000;
1138 default:
1139 return 0;
1140 }
1141 }
1142
1143 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1144 {
1145 struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1146 struct ixgbe_hw *hw = &adapter->hw;
1147 u32 bcnrc_val = 0;
1148 u16 queue, queues_per_pool;
1149 u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1150
1151 if (tx_rate) {
1152 /* start with base link speed value */
1153 bcnrc_val = adapter->vf_rate_link_speed;
1154
1155 /* Calculate the rate factor values to set */
1156 bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1157 bcnrc_val /= tx_rate;
1158
1159 /* clear everything but the rate factor */
1160 bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1161 IXGBE_RTTBCNRC_RF_DEC_MASK;
1162
1163 /* enable the rate scheduler */
1164 bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1165 }
1166
1167 /*
1168 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1169 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1170 * and 0x004 otherwise.
1171 */
1172 switch (hw->mac.type) {
1173 case ixgbe_mac_82599EB:
1174 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1175 break;
1176 case ixgbe_mac_X540:
1177 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1178 break;
1179 default:
1180 break;
1181 }
1182
1183 /* determine how many queues per pool based on VMDq mask */
1184 queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1185
1186 /* write value for all Tx queues belonging to VF */
1187 for (queue = 0; queue < queues_per_pool; queue++) {
1188 unsigned int reg_idx = (vf * queues_per_pool) + queue;
1189
1190 IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1191 IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1192 }
1193 }
1194
1195 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1196 {
1197 int i;
1198
1199 /* VF Tx rate limit was not set */
1200 if (!adapter->vf_rate_link_speed)
1201 return;
1202
1203 if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1204 adapter->vf_rate_link_speed = 0;
1205 dev_info(&adapter->pdev->dev,
1206 "Link speed has been changed. VF Transmit rate is disabled\n");
1207 }
1208
1209 for (i = 0; i < adapter->num_vfs; i++) {
1210 if (!adapter->vf_rate_link_speed)
1211 adapter->vfinfo[i].tx_rate = 0;
1212
1213 ixgbe_set_vf_rate_limit(adapter, i);
1214 }
1215 }
1216
1217 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
1218 {
1219 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1220 int link_speed;
1221
1222 /* verify VF is active */
1223 if (vf >= adapter->num_vfs)
1224 return -EINVAL;
1225
1226 /* verify link is up */
1227 if (!adapter->link_up)
1228 return -EINVAL;
1229
1230 /* verify we are linked at 10Gbps */
1231 link_speed = ixgbe_link_mbps(adapter);
1232 if (link_speed != 10000)
1233 return -EINVAL;
1234
1235 /* rate limit cannot be less than 10Mbs or greater than link speed */
1236 if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed)))
1237 return -EINVAL;
1238
1239 /* store values */
1240 adapter->vf_rate_link_speed = link_speed;
1241 adapter->vfinfo[vf].tx_rate = tx_rate;
1242
1243 /* update hardware configuration */
1244 ixgbe_set_vf_rate_limit(adapter, vf);
1245
1246 return 0;
1247 }
1248
1249 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1250 {
1251 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1252 int vf_target_reg = vf >> 3;
1253 int vf_target_shift = vf % 8;
1254 struct ixgbe_hw *hw = &adapter->hw;
1255 u32 regval;
1256
1257 adapter->vfinfo[vf].spoofchk_enabled = setting;
1258
1259 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1260 regval &= ~(1 << vf_target_shift);
1261 regval |= (setting << vf_target_shift);
1262 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1263
1264 if (adapter->vfinfo[vf].vlan_count) {
1265 vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT;
1266 regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
1267 regval &= ~(1 << vf_target_shift);
1268 regval |= (setting << vf_target_shift);
1269 IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval);
1270 }
1271
1272 return 0;
1273 }
1274
1275 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1276 int vf, struct ifla_vf_info *ivi)
1277 {
1278 struct ixgbe_adapter *adapter = netdev_priv(netdev);
1279 if (vf >= adapter->num_vfs)
1280 return -EINVAL;
1281 ivi->vf = vf;
1282 memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1283 ivi->tx_rate = adapter->vfinfo[vf].tx_rate;
1284 ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1285 ivi->qos = adapter->vfinfo[vf].pf_qos;
1286 ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1287 return 0;
1288 }
Linux kernel - Deliverables
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