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