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 	/* Initialize list of VF macvlans */
32 	INIT_LIST_HEAD(&adapter->vf_mvs.l);
33 
34 	num_vf_macvlans = hw->mac.num_rar_entries -
35 			  (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
36 	if (!num_vf_macvlans)
37 		return;
38 
39 	mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
40 			  GFP_KERNEL);
41 	if (mv_list) {
42 		for (i = 0; i < num_vf_macvlans; i++) {
43 			mv_list[i].vf = -1;
44 			mv_list[i].free = true;
45 			list_add(&mv_list[i].l, &adapter->vf_mvs.l);
46 		}
47 		adapter->mv_list = mv_list;
48 	}
49 }
50 
51 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
52 				unsigned int num_vfs)
53 {
54 	struct ixgbe_hw *hw = &adapter->hw;
55 	int i;
56 
57 	if (adapter->xdp_prog) {
58 		e_warn(probe, "SRIOV is not supported with XDP\n");
59 		return -EINVAL;
60 	}
61 
62 	/* Enable VMDq flag so device will be set in VM mode */
63 	adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
64 			  IXGBE_FLAG_VMDQ_ENABLED;
65 
66 	/* Allocate memory for per VF control structures */
67 	adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
68 				  GFP_KERNEL);
69 	if (!adapter->vfinfo)
70 		return -ENOMEM;
71 
72 	adapter->num_vfs = num_vfs;
73 
74 	ixgbe_alloc_vf_macvlans(adapter, num_vfs);
75 	adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
76 
77 	/* Initialize default switching mode VEB */
78 	IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
79 	adapter->bridge_mode = BRIDGE_MODE_VEB;
80 
81 	/* limit traffic classes based on VFs enabled */
82 	if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
83 		adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
84 		adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
85 	} else if (num_vfs < 32) {
86 		adapter->dcb_cfg.num_tcs.pg_tcs = 4;
87 		adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
88 	} else {
89 		adapter->dcb_cfg.num_tcs.pg_tcs = 1;
90 		adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
91 	}
92 
93 	/* Disable RSC when in SR-IOV mode */
94 	adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
95 			     IXGBE_FLAG2_RSC_ENABLED);
96 
97 	for (i = 0; i < num_vfs; i++) {
98 		/* enable spoof checking for all VFs */
99 		adapter->vfinfo[i].spoofchk_enabled = true;
100 		adapter->vfinfo[i].link_enable = true;
101 
102 		/* We support VF RSS querying only for 82599 and x540
103 		 * devices at the moment. These devices share RSS
104 		 * indirection table and RSS hash key with PF therefore
105 		 * we want to disable the querying by default.
106 		 */
107 		adapter->vfinfo[i].rss_query_enabled = false;
108 
109 		/* Untrust all VFs */
110 		adapter->vfinfo[i].trusted = false;
111 
112 		/* set the default xcast mode */
113 		adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
114 	}
115 
116 	e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
117 	return 0;
118 }
119 
120 /**
121  * ixgbe_get_vfs - Find and take references to all vf devices
122  * @adapter: Pointer to adapter struct
123  */
124 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
125 {
126 	struct pci_dev *pdev = adapter->pdev;
127 	u16 vendor = pdev->vendor;
128 	struct pci_dev *vfdev;
129 	int vf = 0;
130 	u16 vf_id;
131 	int pos;
132 
133 	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
134 	if (!pos)
135 		return;
136 	pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
137 
138 	vfdev = pci_get_device(vendor, vf_id, NULL);
139 	for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
140 		if (!vfdev->is_virtfn)
141 			continue;
142 		if (vfdev->physfn != pdev)
143 			continue;
144 		if (vf >= adapter->num_vfs)
145 			continue;
146 		pci_dev_get(vfdev);
147 		adapter->vfinfo[vf].vfdev = vfdev;
148 		++vf;
149 	}
150 }
151 
152 /* Note this function is called when the user wants to enable SR-IOV
153  * VFs using the now deprecated module parameter
154  */
155 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
156 {
157 	int pre_existing_vfs = 0;
158 	unsigned int num_vfs;
159 
160 	pre_existing_vfs = pci_num_vf(adapter->pdev);
161 	if (!pre_existing_vfs && !max_vfs)
162 		return;
163 
164 	/* If there are pre-existing VFs then we have to force
165 	 * use of that many - over ride any module parameter value.
166 	 * This may result from the user unloading the PF driver
167 	 * while VFs were assigned to guest VMs or because the VFs
168 	 * have been created via the new PCI SR-IOV sysfs interface.
169 	 */
170 	if (pre_existing_vfs) {
171 		num_vfs = pre_existing_vfs;
172 		dev_warn(&adapter->pdev->dev,
173 			 "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
174 	} else {
175 		int err;
176 		/*
177 		 * The 82599 supports up to 64 VFs per physical function
178 		 * but this implementation limits allocation to 63 so that
179 		 * basic networking resources are still available to the
180 		 * physical function.  If the user requests greater than
181 		 * 63 VFs then it is an error - reset to default of zero.
182 		 */
183 		num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
184 
185 		err = pci_enable_sriov(adapter->pdev, num_vfs);
186 		if (err) {
187 			e_err(probe, "Failed to enable PCI sriov: %d\n", err);
188 			return;
189 		}
190 	}
191 
192 	if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
193 		ixgbe_get_vfs(adapter);
194 		return;
195 	}
196 
197 	/* If we have gotten to this point then there is no memory available
198 	 * to manage the VF devices - print message and bail.
199 	 */
200 	e_err(probe, "Unable to allocate memory for VF Data Storage - "
201 	      "SRIOV disabled\n");
202 	ixgbe_disable_sriov(adapter);
203 }
204 
205 #endif /* #ifdef CONFIG_PCI_IOV */
206 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
207 {
208 	unsigned int num_vfs = adapter->num_vfs, vf;
209 	unsigned long flags;
210 	int rss;
211 
212 	spin_lock_irqsave(&adapter->vfs_lock, flags);
213 	/* set num VFs to 0 to prevent access to vfinfo */
214 	adapter->num_vfs = 0;
215 	spin_unlock_irqrestore(&adapter->vfs_lock, flags);
216 
217 	/* put the reference to all of the vf devices */
218 	for (vf = 0; vf < num_vfs; ++vf) {
219 		struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
220 
221 		if (!vfdev)
222 			continue;
223 		adapter->vfinfo[vf].vfdev = NULL;
224 		pci_dev_put(vfdev);
225 	}
226 
227 	/* free VF control structures */
228 	kfree(adapter->vfinfo);
229 	adapter->vfinfo = NULL;
230 
231 	/* free macvlan list */
232 	kfree(adapter->mv_list);
233 	adapter->mv_list = NULL;
234 
235 	/* if SR-IOV is already disabled then there is nothing to do */
236 	if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
237 		return 0;
238 
239 #ifdef CONFIG_PCI_IOV
240 	/*
241 	 * If our VFs are assigned we cannot shut down SR-IOV
242 	 * without causing issues, so just leave the hardware
243 	 * available but disabled
244 	 */
245 	if (pci_vfs_assigned(adapter->pdev)) {
246 		e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
247 		return -EPERM;
248 	}
249 	/* disable iov and allow time for transactions to clear */
250 	pci_disable_sriov(adapter->pdev);
251 #endif
252 
253 	/* Disable VMDq flag so device will be set in VM mode */
254 	if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
255 		adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
256 		adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
257 		rss = min_t(int, ixgbe_max_rss_indices(adapter),
258 			    num_online_cpus());
259 	} else {
260 		rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
261 	}
262 
263 	adapter->ring_feature[RING_F_VMDQ].offset = 0;
264 	adapter->ring_feature[RING_F_RSS].limit = rss;
265 
266 	/* take a breather then clean up driver data */
267 	msleep(100);
268 	return 0;
269 }
270 
271 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
272 {
273 #ifdef CONFIG_PCI_IOV
274 	struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
275 	int pre_existing_vfs = pci_num_vf(dev);
276 	int err = 0, num_rx_pools, i, limit;
277 	u8 num_tc;
278 
279 	if (pre_existing_vfs && pre_existing_vfs != num_vfs)
280 		err = ixgbe_disable_sriov(adapter);
281 	else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
282 		return num_vfs;
283 
284 	if (err)
285 		return err;
286 
287 	/* While the SR-IOV capability structure reports total VFs to be 64,
288 	 * we limit the actual number allocated as below based on two factors.
289 	 *    Num_TCs	MAX_VFs
290 	 *	1	  63
291 	 *	<=4	  31
292 	 *	>4	  15
293 	 * First, we reserve some transmit/receive resources for the PF.
294 	 * Second, VMDQ also uses the same pools that SR-IOV does. We need to
295 	 * account for this, so that we don't accidentally allocate more VFs
296 	 * than we have available pools. The PCI bus driver already checks for
297 	 * other values out of range.
298 	 */
299 	num_tc = adapter->hw_tcs;
300 	num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
301 				     adapter->num_rx_pools);
302 	limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
303 		(num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
304 
305 	if (num_vfs > (limit - num_rx_pools)) {
306 		e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
307 			  num_tc, num_rx_pools - 1, limit - num_rx_pools);
308 		return -EPERM;
309 	}
310 
311 	err = __ixgbe_enable_sriov(adapter, num_vfs);
312 	if (err)
313 		return  err;
314 
315 	for (i = 0; i < num_vfs; i++)
316 		ixgbe_vf_configuration(dev, (i | 0x10000000));
317 
318 	/* reset before enabling SRIOV to avoid mailbox issues */
319 	ixgbe_sriov_reinit(adapter);
320 
321 	err = pci_enable_sriov(dev, num_vfs);
322 	if (err) {
323 		e_dev_warn("Failed to enable PCI sriov: %d\n", err);
324 		return err;
325 	}
326 	ixgbe_get_vfs(adapter);
327 
328 	return num_vfs;
329 #else
330 	return 0;
331 #endif
332 }
333 
334 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
335 {
336 	struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
337 	int err;
338 #ifdef CONFIG_PCI_IOV
339 	u32 current_flags = adapter->flags;
340 	int prev_num_vf = pci_num_vf(dev);
341 #endif
342 
343 	err = ixgbe_disable_sriov(adapter);
344 
345 	/* Only reinit if no error and state changed */
346 #ifdef CONFIG_PCI_IOV
347 	if (!err && (current_flags != adapter->flags ||
348 		     prev_num_vf != pci_num_vf(dev)))
349 		ixgbe_sriov_reinit(adapter);
350 #endif
351 
352 	return err;
353 }
354 
355 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
356 {
357 	if (num_vfs == 0)
358 		return ixgbe_pci_sriov_disable(dev);
359 	else
360 		return ixgbe_pci_sriov_enable(dev, num_vfs);
361 }
362 
363 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
364 				   u32 *msgbuf, u32 vf)
365 {
366 	int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
367 		       >> IXGBE_VT_MSGINFO_SHIFT;
368 	u16 *hash_list = (u16 *)&msgbuf[1];
369 	struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
370 	struct ixgbe_hw *hw = &adapter->hw;
371 	int i;
372 	u32 vector_bit;
373 	u32 vector_reg;
374 	u32 mta_reg;
375 	u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
376 
377 	/* only so many hash values supported */
378 	entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
379 
380 	/*
381 	 * salt away the number of multi cast addresses assigned
382 	 * to this VF for later use to restore when the PF multi cast
383 	 * list changes
384 	 */
385 	vfinfo->num_vf_mc_hashes = entries;
386 
387 	/*
388 	 * VFs are limited to using the MTA hash table for their multicast
389 	 * addresses
390 	 */
391 	for (i = 0; i < entries; i++) {
392 		vfinfo->vf_mc_hashes[i] = hash_list[i];
393 	}
394 
395 	for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
396 		vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
397 		vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
398 		mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
399 		mta_reg |= BIT(vector_bit);
400 		IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
401 	}
402 	vmolr |= IXGBE_VMOLR_ROMPE;
403 	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
404 
405 	return 0;
406 }
407 
408 #ifdef CONFIG_PCI_IOV
409 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
410 {
411 	struct ixgbe_hw *hw = &adapter->hw;
412 	struct vf_data_storage *vfinfo;
413 	int i, j;
414 	u32 vector_bit;
415 	u32 vector_reg;
416 	u32 mta_reg;
417 
418 	for (i = 0; i < adapter->num_vfs; i++) {
419 		u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
420 		vfinfo = &adapter->vfinfo[i];
421 		for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
422 			hw->addr_ctrl.mta_in_use++;
423 			vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
424 			vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
425 			mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
426 			mta_reg |= BIT(vector_bit);
427 			IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
428 		}
429 
430 		if (vfinfo->num_vf_mc_hashes)
431 			vmolr |= IXGBE_VMOLR_ROMPE;
432 		else
433 			vmolr &= ~IXGBE_VMOLR_ROMPE;
434 		IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
435 	}
436 
437 	/* Restore any VF macvlans */
438 	ixgbe_full_sync_mac_table(adapter);
439 }
440 #endif
441 
442 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
443 			     u32 vf)
444 {
445 	struct ixgbe_hw *hw = &adapter->hw;
446 	int err;
447 
448 	/* If VLAN overlaps with one the PF is currently monitoring make
449 	 * sure that we are able to allocate a VLVF entry.  This may be
450 	 * redundant but it guarantees PF will maintain visibility to
451 	 * the VLAN.
452 	 */
453 	if (add && test_bit(vid, adapter->active_vlans)) {
454 		err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
455 		if (err)
456 			return err;
457 	}
458 
459 	err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
460 
461 	if (add && !err)
462 		return err;
463 
464 	/* If we failed to add the VF VLAN or we are removing the VF VLAN
465 	 * we may need to drop the PF pool bit in order to allow us to free
466 	 * up the VLVF resources.
467 	 */
468 	if (test_bit(vid, adapter->active_vlans) ||
469 	    (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
470 		ixgbe_update_pf_promisc_vlvf(adapter, vid);
471 
472 	return err;
473 }
474 
475 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
476 {
477 	struct ixgbe_hw *hw = &adapter->hw;
478 	u32 max_frs;
479 
480 	if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
481 		e_err(drv, "VF max_frame %d out of range\n", max_frame);
482 		return -EINVAL;
483 	}
484 
485 	/*
486 	 * For 82599EB we have to keep all PFs and VFs operating with
487 	 * the same max_frame value in order to avoid sending an oversize
488 	 * frame to a VF.  In order to guarantee this is handled correctly
489 	 * for all cases we have several special exceptions to take into
490 	 * account before we can enable the VF for receive
491 	 */
492 	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
493 		struct net_device *dev = adapter->netdev;
494 		int pf_max_frame = dev->mtu + ETH_HLEN;
495 		u32 reg_offset, vf_shift, vfre;
496 		s32 err = 0;
497 
498 #ifdef CONFIG_FCOE
499 		if (dev->features & NETIF_F_FCOE_MTU)
500 			pf_max_frame = max_t(int, pf_max_frame,
501 					     IXGBE_FCOE_JUMBO_FRAME_SIZE);
502 
503 #endif /* CONFIG_FCOE */
504 		switch (adapter->vfinfo[vf].vf_api) {
505 		case ixgbe_mbox_api_11:
506 		case ixgbe_mbox_api_12:
507 		case ixgbe_mbox_api_13:
508 		case ixgbe_mbox_api_14:
509 			/* Version 1.1 supports jumbo frames on VFs if PF has
510 			 * jumbo frames enabled which means legacy VFs are
511 			 * disabled
512 			 */
513 			if (pf_max_frame > ETH_FRAME_LEN)
514 				break;
515 			fallthrough;
516 		default:
517 			/* If the PF or VF are running w/ jumbo frames enabled
518 			 * we need to shut down the VF Rx path as we cannot
519 			 * support jumbo frames on legacy VFs
520 			 */
521 			if ((pf_max_frame > ETH_FRAME_LEN) ||
522 			    (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
523 				err = -EINVAL;
524 			break;
525 		}
526 
527 		/* determine VF receive enable location */
528 		vf_shift = vf % 32;
529 		reg_offset = vf / 32;
530 
531 		/* enable or disable receive depending on error */
532 		vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
533 		if (err)
534 			vfre &= ~BIT(vf_shift);
535 		else
536 			vfre |= BIT(vf_shift);
537 		IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
538 
539 		if (err) {
540 			e_err(drv, "VF max_frame %d out of range\n", max_frame);
541 			return err;
542 		}
543 	}
544 
545 	/* pull current max frame size from hardware */
546 	max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
547 	max_frs &= IXGBE_MHADD_MFS_MASK;
548 	max_frs >>= IXGBE_MHADD_MFS_SHIFT;
549 
550 	if (max_frs < max_frame) {
551 		max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
552 		IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
553 	}
554 
555 	e_info(hw, "VF requests change max MTU to %d\n", max_frame);
556 
557 	return 0;
558 }
559 
560 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
561 {
562 	u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
563 	vmolr |= IXGBE_VMOLR_BAM;
564 	if (aupe)
565 		vmolr |= IXGBE_VMOLR_AUPE;
566 	else
567 		vmolr &= ~IXGBE_VMOLR_AUPE;
568 	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
569 }
570 
571 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
572 {
573 	struct ixgbe_hw *hw = &adapter->hw;
574 
575 	IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
576 }
577 
578 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
579 {
580 	struct ixgbe_hw *hw = &adapter->hw;
581 	u32 vlvfb_mask, pool_mask, i;
582 
583 	/* create mask for VF and other pools */
584 	pool_mask = ~BIT(VMDQ_P(0) % 32);
585 	vlvfb_mask = BIT(vf % 32);
586 
587 	/* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
588 	for (i = IXGBE_VLVF_ENTRIES; i--;) {
589 		u32 bits[2], vlvfb, vid, vfta, vlvf;
590 		u32 word = i * 2 + vf / 32;
591 		u32 mask;
592 
593 		vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
594 
595 		/* if our bit isn't set we can skip it */
596 		if (!(vlvfb & vlvfb_mask))
597 			continue;
598 
599 		/* clear our bit from vlvfb */
600 		vlvfb ^= vlvfb_mask;
601 
602 		/* create 64b mask to chedk to see if we should clear VLVF */
603 		bits[word % 2] = vlvfb;
604 		bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
605 
606 		/* if other pools are present, just remove ourselves */
607 		if (bits[(VMDQ_P(0) / 32) ^ 1] ||
608 		    (bits[VMDQ_P(0) / 32] & pool_mask))
609 			goto update_vlvfb;
610 
611 		/* if PF is present, leave VFTA */
612 		if (bits[0] || bits[1])
613 			goto update_vlvf;
614 
615 		/* if we cannot determine VLAN just remove ourselves */
616 		vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
617 		if (!vlvf)
618 			goto update_vlvfb;
619 
620 		vid = vlvf & VLAN_VID_MASK;
621 		mask = BIT(vid % 32);
622 
623 		/* clear bit from VFTA */
624 		vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
625 		if (vfta & mask)
626 			IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
627 update_vlvf:
628 		/* clear POOL selection enable */
629 		IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
630 
631 		if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
632 			vlvfb = 0;
633 update_vlvfb:
634 		/* clear pool bits */
635 		IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
636 	}
637 }
638 
639 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
640 				int vf, int index, unsigned char *mac_addr)
641 {
642 	struct vf_macvlans *entry;
643 	struct list_head *pos;
644 	int retval = 0;
645 
646 	if (index <= 1) {
647 		list_for_each(pos, &adapter->vf_mvs.l) {
648 			entry = list_entry(pos, struct vf_macvlans, l);
649 			if (entry->vf == vf) {
650 				entry->vf = -1;
651 				entry->free = true;
652 				entry->is_macvlan = false;
653 				ixgbe_del_mac_filter(adapter,
654 						     entry->vf_macvlan, vf);
655 			}
656 		}
657 	}
658 
659 	/*
660 	 * If index was zero then we were asked to clear the uc list
661 	 * for the VF.  We're done.
662 	 */
663 	if (!index)
664 		return 0;
665 
666 	entry = NULL;
667 
668 	list_for_each(pos, &adapter->vf_mvs.l) {
669 		entry = list_entry(pos, struct vf_macvlans, l);
670 		if (entry->free)
671 			break;
672 	}
673 
674 	/*
675 	 * If we traversed the entire list and didn't find a free entry
676 	 * then we're out of space on the RAR table.  Also entry may
677 	 * be NULL because the original memory allocation for the list
678 	 * failed, which is not fatal but does mean we can't support
679 	 * VF requests for MACVLAN because we couldn't allocate
680 	 * memory for the list management required.
681 	 */
682 	if (!entry || !entry->free)
683 		return -ENOSPC;
684 
685 	retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
686 	if (retval < 0)
687 		return retval;
688 
689 	entry->free = false;
690 	entry->is_macvlan = true;
691 	entry->vf = vf;
692 	memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
693 
694 	return 0;
695 }
696 
697 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
698 {
699 	struct ixgbe_hw *hw = &adapter->hw;
700 	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
701 	struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
702 	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
703 	u8 num_tcs = adapter->hw_tcs;
704 	u32 reg_val;
705 	u32 queue;
706 
707 	/* remove VLAN filters beloning to this VF */
708 	ixgbe_clear_vf_vlans(adapter, vf);
709 
710 	/* add back PF assigned VLAN or VLAN 0 */
711 	ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
712 
713 	/* reset offloads to defaults */
714 	ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
715 
716 	/* set outgoing tags for VFs */
717 	if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
718 		ixgbe_clear_vmvir(adapter, vf);
719 	} else {
720 		if (vfinfo->pf_qos || !num_tcs)
721 			ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
722 					vfinfo->pf_qos, vf);
723 		else
724 			ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
725 					adapter->default_up, vf);
726 
727 		if (vfinfo->spoofchk_enabled) {
728 			hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
729 			hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
730 		}
731 	}
732 
733 	/* reset multicast table array for vf */
734 	adapter->vfinfo[vf].num_vf_mc_hashes = 0;
735 
736 	/* clear any ipsec table info */
737 	ixgbe_ipsec_vf_clear(adapter, vf);
738 
739 	/* Flush and reset the mta with the new values */
740 	ixgbe_set_rx_mode(adapter->netdev);
741 
742 	ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
743 	ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
744 
745 	/* reset VF api back to unknown */
746 	adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
747 
748 	/* Restart each queue for given VF */
749 	for (queue = 0; queue < q_per_pool; queue++) {
750 		unsigned int reg_idx = (vf * q_per_pool) + queue;
751 
752 		reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
753 
754 		/* Re-enabling only configured queues */
755 		if (reg_val) {
756 			reg_val |= IXGBE_TXDCTL_ENABLE;
757 			IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
758 			reg_val &= ~IXGBE_TXDCTL_ENABLE;
759 			IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
760 		}
761 	}
762 
763 	IXGBE_WRITE_FLUSH(hw);
764 }
765 
766 static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
767 {
768 	struct ixgbe_hw *hw = &adapter->hw;
769 	u32 word;
770 
771 	/* Clear VF's mailbox memory */
772 	for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
773 		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
774 
775 	IXGBE_WRITE_FLUSH(hw);
776 }
777 
778 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
779 			    int vf, unsigned char *mac_addr)
780 {
781 	s32 retval;
782 
783 	ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
784 	retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
785 	if (retval >= 0)
786 		memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
787 		       ETH_ALEN);
788 	else
789 		eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
790 
791 	return retval;
792 }
793 
794 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
795 {
796 	struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
797 	unsigned int vfn = (event_mask & 0x3f);
798 
799 	bool enable = ((event_mask & 0x10000000U) != 0);
800 
801 	if (enable)
802 		eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
803 
804 	return 0;
805 }
806 
807 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
808 				   u32 qde)
809 {
810 	struct ixgbe_hw *hw = &adapter->hw;
811 	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
812 	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
813 	int i;
814 
815 	for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
816 		u32 reg;
817 
818 		/* flush previous write */
819 		IXGBE_WRITE_FLUSH(hw);
820 
821 		/* indicate to hardware that we want to set drop enable */
822 		reg = IXGBE_QDE_WRITE | qde;
823 		reg |= i <<  IXGBE_QDE_IDX_SHIFT;
824 		IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
825 	}
826 }
827 
828 /**
829  * ixgbe_set_vf_rx_tx - Set VF rx tx
830  * @adapter: Pointer to adapter struct
831  * @vf: VF identifier
832  *
833  * Set or reset correct transmit and receive for vf
834  **/
835 static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf)
836 {
837 	u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
838 	struct ixgbe_hw *hw = &adapter->hw;
839 	u32 reg_offset, vf_shift;
840 
841 	vf_shift = vf % 32;
842 	reg_offset = vf / 32;
843 
844 	reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
845 	reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
846 
847 	if (adapter->vfinfo[vf].link_enable) {
848 		reg_req_tx = reg_cur_tx | 1 << vf_shift;
849 		reg_req_rx = reg_cur_rx | 1 << vf_shift;
850 	} else {
851 		reg_req_tx = reg_cur_tx & ~(1 << vf_shift);
852 		reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
853 	}
854 
855 	/* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
856 	 * For more info take a look at ixgbe_set_vf_lpe
857 	 */
858 	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
859 		struct net_device *dev = adapter->netdev;
860 		int pf_max_frame = dev->mtu + ETH_HLEN;
861 
862 #if IS_ENABLED(CONFIG_FCOE)
863 		if (dev->features & NETIF_F_FCOE_MTU)
864 			pf_max_frame = max_t(int, pf_max_frame,
865 					     IXGBE_FCOE_JUMBO_FRAME_SIZE);
866 #endif /* CONFIG_FCOE */
867 
868 		if (pf_max_frame > ETH_FRAME_LEN)
869 			reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
870 	}
871 
872 	/* Enable/Disable particular VF */
873 	if (reg_cur_tx != reg_req_tx)
874 		IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx);
875 	if (reg_cur_rx != reg_req_rx)
876 		IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx);
877 }
878 
879 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
880 {
881 	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
882 	struct ixgbe_hw *hw = &adapter->hw;
883 	unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
884 	u32 reg, reg_offset, vf_shift;
885 	u32 msgbuf[4] = {0, 0, 0, 0};
886 	u8 *addr = (u8 *)(&msgbuf[1]);
887 	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
888 	int i;
889 
890 	e_info(probe, "VF Reset msg received from vf %d\n", vf);
891 
892 	/* reset the filters for the device */
893 	ixgbe_vf_reset_event(adapter, vf);
894 
895 	ixgbe_vf_clear_mbx(adapter, vf);
896 
897 	/* set vf mac address */
898 	if (!is_zero_ether_addr(vf_mac))
899 		ixgbe_set_vf_mac(adapter, vf, vf_mac);
900 
901 	vf_shift = vf % 32;
902 	reg_offset = vf / 32;
903 
904 	/* force drop enable for all VF Rx queues */
905 	reg = IXGBE_QDE_ENABLE;
906 	if (adapter->vfinfo[vf].pf_vlan)
907 		reg |= IXGBE_QDE_HIDE_VLAN;
908 
909 	ixgbe_write_qde(adapter, vf, reg);
910 
911 	ixgbe_set_vf_rx_tx(adapter, vf);
912 
913 	/* enable VF mailbox for further messages */
914 	adapter->vfinfo[vf].clear_to_send = true;
915 
916 	/* Enable counting of spoofed packets in the SSVPC register */
917 	reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
918 	reg |= BIT(vf_shift);
919 	IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
920 
921 	/*
922 	 * Reset the VFs TDWBAL and TDWBAH registers
923 	 * which are not cleared by an FLR
924 	 */
925 	for (i = 0; i < q_per_pool; i++) {
926 		IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
927 		IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
928 	}
929 
930 	/* reply to reset with ack and vf mac address */
931 	msgbuf[0] = IXGBE_VF_RESET;
932 	if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
933 		msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
934 		memcpy(addr, vf_mac, ETH_ALEN);
935 	} else {
936 		msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
937 	}
938 
939 	/*
940 	 * Piggyback the multicast filter type so VF can compute the
941 	 * correct vectors
942 	 */
943 	msgbuf[3] = hw->mac.mc_filter_type;
944 	ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
945 
946 	return 0;
947 }
948 
949 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
950 				 u32 *msgbuf, u32 vf)
951 {
952 	u8 *new_mac = ((u8 *)(&msgbuf[1]));
953 
954 	if (!is_valid_ether_addr(new_mac)) {
955 		e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
956 		return -1;
957 	}
958 
959 	if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
960 	    !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
961 		e_warn(drv,
962 		       "VF %d attempted to override administratively set MAC address\n"
963 		       "Reload the VF driver to resume operations\n",
964 		       vf);
965 		return -1;
966 	}
967 
968 	return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
969 }
970 
971 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
972 				 u32 *msgbuf, u32 vf)
973 {
974 	u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
975 	u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
976 	u8 tcs = adapter->hw_tcs;
977 
978 	if (adapter->vfinfo[vf].pf_vlan || tcs) {
979 		e_warn(drv,
980 		       "VF %d attempted to override administratively set VLAN configuration\n"
981 		       "Reload the VF driver to resume operations\n",
982 		       vf);
983 		return -1;
984 	}
985 
986 	/* VLAN 0 is a special case, don't allow it to be removed */
987 	if (!vid && !add)
988 		return 0;
989 
990 	return ixgbe_set_vf_vlan(adapter, add, vid, vf);
991 }
992 
993 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
994 				    u32 *msgbuf, u32 vf)
995 {
996 	u8 *new_mac = ((u8 *)(&msgbuf[1]));
997 	int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
998 		    IXGBE_VT_MSGINFO_SHIFT;
999 	int err;
1000 
1001 	if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
1002 	    index > 0) {
1003 		e_warn(drv,
1004 		       "VF %d requested MACVLAN filter but is administratively denied\n",
1005 		       vf);
1006 		return -1;
1007 	}
1008 
1009 	/* An non-zero index indicates the VF is setting a filter */
1010 	if (index) {
1011 		if (!is_valid_ether_addr(new_mac)) {
1012 			e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
1013 			return -1;
1014 		}
1015 
1016 		/*
1017 		 * If the VF is allowed to set MAC filters then turn off
1018 		 * anti-spoofing to avoid false positives.
1019 		 */
1020 		if (adapter->vfinfo[vf].spoofchk_enabled) {
1021 			struct ixgbe_hw *hw = &adapter->hw;
1022 
1023 			hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
1024 			hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1025 		}
1026 	}
1027 
1028 	err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1029 	if (err == -ENOSPC)
1030 		e_warn(drv,
1031 		       "VF %d has requested a MACVLAN filter but there is no space for it\n",
1032 		       vf);
1033 
1034 	return err < 0;
1035 }
1036 
1037 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1038 				  u32 *msgbuf, u32 vf)
1039 {
1040 	int api = msgbuf[1];
1041 
1042 	switch (api) {
1043 	case ixgbe_mbox_api_10:
1044 	case ixgbe_mbox_api_11:
1045 	case ixgbe_mbox_api_12:
1046 	case ixgbe_mbox_api_13:
1047 	case ixgbe_mbox_api_14:
1048 		adapter->vfinfo[vf].vf_api = api;
1049 		return 0;
1050 	default:
1051 		break;
1052 	}
1053 
1054 	e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1055 
1056 	return -1;
1057 }
1058 
1059 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1060 			       u32 *msgbuf, u32 vf)
1061 {
1062 	struct net_device *dev = adapter->netdev;
1063 	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1064 	unsigned int default_tc = 0;
1065 	u8 num_tcs = adapter->hw_tcs;
1066 
1067 	/* verify the PF is supporting the correct APIs */
1068 	switch (adapter->vfinfo[vf].vf_api) {
1069 	case ixgbe_mbox_api_20:
1070 	case ixgbe_mbox_api_11:
1071 	case ixgbe_mbox_api_12:
1072 	case ixgbe_mbox_api_13:
1073 	case ixgbe_mbox_api_14:
1074 		break;
1075 	default:
1076 		return -1;
1077 	}
1078 
1079 	/* only allow 1 Tx queue for bandwidth limiting */
1080 	msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1081 	msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1082 
1083 	/* if TCs > 1 determine which TC belongs to default user priority */
1084 	if (num_tcs > 1)
1085 		default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1086 
1087 	/* notify VF of need for VLAN tag stripping, and correct queue */
1088 	if (num_tcs)
1089 		msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1090 	else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1091 		msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1092 	else
1093 		msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1094 
1095 	/* notify VF of default queue */
1096 	msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1097 
1098 	return 0;
1099 }
1100 
1101 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1102 {
1103 	u32 i, j;
1104 	u32 *out_buf = &msgbuf[1];
1105 	const u8 *reta = adapter->rss_indir_tbl;
1106 	u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1107 
1108 	/* Check if operation is permitted */
1109 	if (!adapter->vfinfo[vf].rss_query_enabled)
1110 		return -EPERM;
1111 
1112 	/* verify the PF is supporting the correct API */
1113 	switch (adapter->vfinfo[vf].vf_api) {
1114 	case ixgbe_mbox_api_14:
1115 	case ixgbe_mbox_api_13:
1116 	case ixgbe_mbox_api_12:
1117 		break;
1118 	default:
1119 		return -EOPNOTSUPP;
1120 	}
1121 
1122 	/* This mailbox command is supported (required) only for 82599 and x540
1123 	 * VFs which support up to 4 RSS queues. Therefore we will compress the
1124 	 * RETA by saving only 2 bits from each entry. This way we will be able
1125 	 * to transfer the whole RETA in a single mailbox operation.
1126 	 */
1127 	for (i = 0; i < reta_size / 16; i++) {
1128 		out_buf[i] = 0;
1129 		for (j = 0; j < 16; j++)
1130 			out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1131 	}
1132 
1133 	return 0;
1134 }
1135 
1136 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1137 				u32 *msgbuf, u32 vf)
1138 {
1139 	u32 *rss_key = &msgbuf[1];
1140 
1141 	/* Check if the operation is permitted */
1142 	if (!adapter->vfinfo[vf].rss_query_enabled)
1143 		return -EPERM;
1144 
1145 	/* verify the PF is supporting the correct API */
1146 	switch (adapter->vfinfo[vf].vf_api) {
1147 	case ixgbe_mbox_api_14:
1148 	case ixgbe_mbox_api_13:
1149 	case ixgbe_mbox_api_12:
1150 		break;
1151 	default:
1152 		return -EOPNOTSUPP;
1153 	}
1154 
1155 	memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1156 
1157 	return 0;
1158 }
1159 
1160 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1161 				      u32 *msgbuf, u32 vf)
1162 {
1163 	struct ixgbe_hw *hw = &adapter->hw;
1164 	int xcast_mode = msgbuf[1];
1165 	u32 vmolr, fctrl, disable, enable;
1166 
1167 	/* verify the PF is supporting the correct APIs */
1168 	switch (adapter->vfinfo[vf].vf_api) {
1169 	case ixgbe_mbox_api_12:
1170 		/* promisc introduced in 1.3 version */
1171 		if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1172 			return -EOPNOTSUPP;
1173 		fallthrough;
1174 	case ixgbe_mbox_api_13:
1175 	case ixgbe_mbox_api_14:
1176 		break;
1177 	default:
1178 		return -EOPNOTSUPP;
1179 	}
1180 
1181 	if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1182 	    !adapter->vfinfo[vf].trusted) {
1183 		xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1184 	}
1185 
1186 	if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1187 		goto out;
1188 
1189 	switch (xcast_mode) {
1190 	case IXGBEVF_XCAST_MODE_NONE:
1191 		disable = IXGBE_VMOLR_ROMPE |
1192 			  IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1193 		enable = IXGBE_VMOLR_BAM;
1194 		break;
1195 	case IXGBEVF_XCAST_MODE_MULTI:
1196 		disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1197 		enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1198 		break;
1199 	case IXGBEVF_XCAST_MODE_ALLMULTI:
1200 		disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1201 		enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1202 		break;
1203 	case IXGBEVF_XCAST_MODE_PROMISC:
1204 		if (hw->mac.type <= ixgbe_mac_82599EB)
1205 			return -EOPNOTSUPP;
1206 
1207 		fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1208 		if (!(fctrl & IXGBE_FCTRL_UPE)) {
1209 			/* VF promisc requires PF in promisc */
1210 			e_warn(drv,
1211 			       "Enabling VF promisc requires PF in promisc\n");
1212 			return -EPERM;
1213 		}
1214 
1215 		disable = IXGBE_VMOLR_VPE;
1216 		enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1217 			 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1218 		break;
1219 	default:
1220 		return -EOPNOTSUPP;
1221 	}
1222 
1223 	vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1224 	vmolr &= ~disable;
1225 	vmolr |= enable;
1226 	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1227 
1228 	adapter->vfinfo[vf].xcast_mode = xcast_mode;
1229 
1230 out:
1231 	msgbuf[1] = xcast_mode;
1232 
1233 	return 0;
1234 }
1235 
1236 static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
1237 				   u32 *msgbuf, u32 vf)
1238 {
1239 	u32 *link_state = &msgbuf[1];
1240 
1241 	/* verify the PF is supporting the correct API */
1242 	switch (adapter->vfinfo[vf].vf_api) {
1243 	case ixgbe_mbox_api_12:
1244 	case ixgbe_mbox_api_13:
1245 	case ixgbe_mbox_api_14:
1246 		break;
1247 	default:
1248 		return -EOPNOTSUPP;
1249 	}
1250 
1251 	*link_state = adapter->vfinfo[vf].link_enable;
1252 
1253 	return 0;
1254 }
1255 
1256 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1257 {
1258 	u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1259 	u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1260 	struct ixgbe_hw *hw = &adapter->hw;
1261 	s32 retval;
1262 
1263 	retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1264 
1265 	if (retval) {
1266 		pr_err("Error receiving message from VF\n");
1267 		return retval;
1268 	}
1269 
1270 	/* this is a message we already processed, do nothing */
1271 	if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1272 		return 0;
1273 
1274 	/* flush the ack before we write any messages back */
1275 	IXGBE_WRITE_FLUSH(hw);
1276 
1277 	if (msgbuf[0] == IXGBE_VF_RESET)
1278 		return ixgbe_vf_reset_msg(adapter, vf);
1279 
1280 	/*
1281 	 * until the vf completes a virtual function reset it should not be
1282 	 * allowed to start any configuration.
1283 	 */
1284 	if (!adapter->vfinfo[vf].clear_to_send) {
1285 		msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1286 		ixgbe_write_mbx(hw, msgbuf, 1, vf);
1287 		return 0;
1288 	}
1289 
1290 	switch ((msgbuf[0] & 0xFFFF)) {
1291 	case IXGBE_VF_SET_MAC_ADDR:
1292 		retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1293 		break;
1294 	case IXGBE_VF_SET_MULTICAST:
1295 		retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1296 		break;
1297 	case IXGBE_VF_SET_VLAN:
1298 		retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1299 		break;
1300 	case IXGBE_VF_SET_LPE:
1301 		retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1302 		break;
1303 	case IXGBE_VF_SET_MACVLAN:
1304 		retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1305 		break;
1306 	case IXGBE_VF_API_NEGOTIATE:
1307 		retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1308 		break;
1309 	case IXGBE_VF_GET_QUEUES:
1310 		retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1311 		break;
1312 	case IXGBE_VF_GET_RETA:
1313 		retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1314 		break;
1315 	case IXGBE_VF_GET_RSS_KEY:
1316 		retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1317 		break;
1318 	case IXGBE_VF_UPDATE_XCAST_MODE:
1319 		retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1320 		break;
1321 	case IXGBE_VF_GET_LINK_STATE:
1322 		retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf);
1323 		break;
1324 	case IXGBE_VF_IPSEC_ADD:
1325 		retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1326 		break;
1327 	case IXGBE_VF_IPSEC_DEL:
1328 		retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1329 		break;
1330 	default:
1331 		e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1332 		retval = IXGBE_ERR_MBX;
1333 		break;
1334 	}
1335 
1336 	/* notify the VF of the results of what it sent us */
1337 	if (retval)
1338 		msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1339 	else
1340 		msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1341 
1342 	msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1343 
1344 	ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1345 
1346 	return retval;
1347 }
1348 
1349 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1350 {
1351 	struct ixgbe_hw *hw = &adapter->hw;
1352 	u32 msg = IXGBE_VT_MSGTYPE_NACK;
1353 
1354 	/* if device isn't clear to send it shouldn't be reading either */
1355 	if (!adapter->vfinfo[vf].clear_to_send)
1356 		ixgbe_write_mbx(hw, &msg, 1, vf);
1357 }
1358 
1359 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1360 {
1361 	struct ixgbe_hw *hw = &adapter->hw;
1362 	unsigned long flags;
1363 	u32 vf;
1364 
1365 	spin_lock_irqsave(&adapter->vfs_lock, flags);
1366 	for (vf = 0; vf < adapter->num_vfs; vf++) {
1367 		/* process any reset requests */
1368 		if (!ixgbe_check_for_rst(hw, vf))
1369 			ixgbe_vf_reset_event(adapter, vf);
1370 
1371 		/* process any messages pending */
1372 		if (!ixgbe_check_for_msg(hw, vf))
1373 			ixgbe_rcv_msg_from_vf(adapter, vf);
1374 
1375 		/* process any acks */
1376 		if (!ixgbe_check_for_ack(hw, vf))
1377 			ixgbe_rcv_ack_from_vf(adapter, vf);
1378 	}
1379 	spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1380 }
1381 
1382 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1383 {
1384 	struct ixgbe_hw *hw = &adapter->hw;
1385 	u32 ping;
1386 
1387 	ping = IXGBE_PF_CONTROL_MSG;
1388 	if (adapter->vfinfo[vf].clear_to_send)
1389 		ping |= IXGBE_VT_MSGTYPE_CTS;
1390 	ixgbe_write_mbx(hw, &ping, 1, vf);
1391 }
1392 
1393 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1394 {
1395 	struct ixgbe_hw *hw = &adapter->hw;
1396 	u32 ping;
1397 	int i;
1398 
1399 	for (i = 0 ; i < adapter->num_vfs; i++) {
1400 		ping = IXGBE_PF_CONTROL_MSG;
1401 		if (adapter->vfinfo[i].clear_to_send)
1402 			ping |= IXGBE_VT_MSGTYPE_CTS;
1403 		ixgbe_write_mbx(hw, &ping, 1, i);
1404 	}
1405 }
1406 
1407 /**
1408  * ixgbe_set_all_vfs - update vfs queues
1409  * @adapter: Pointer to adapter struct
1410  *
1411  * Update setting transmit and receive queues for all vfs
1412  **/
1413 void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1414 {
1415 	int i;
1416 
1417 	for (i = 0 ; i < adapter->num_vfs; i++)
1418 		ixgbe_set_vf_link_state(adapter, i,
1419 					adapter->vfinfo[i].link_state);
1420 }
1421 
1422 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1423 {
1424 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1425 	s32 retval;
1426 
1427 	if (vf >= adapter->num_vfs)
1428 		return -EINVAL;
1429 
1430 	if (is_valid_ether_addr(mac)) {
1431 		dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1432 			 mac, vf);
1433 		dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1434 
1435 		retval = ixgbe_set_vf_mac(adapter, vf, mac);
1436 		if (retval >= 0) {
1437 			adapter->vfinfo[vf].pf_set_mac = true;
1438 
1439 			if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1440 				dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1441 				dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1442 			}
1443 		} else {
1444 			dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1445 		}
1446 	} else if (is_zero_ether_addr(mac)) {
1447 		unsigned char *vf_mac_addr =
1448 					   adapter->vfinfo[vf].vf_mac_addresses;
1449 
1450 		/* nothing to do */
1451 		if (is_zero_ether_addr(vf_mac_addr))
1452 			return 0;
1453 
1454 		dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1455 
1456 		retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1457 		if (retval >= 0) {
1458 			adapter->vfinfo[vf].pf_set_mac = false;
1459 			memcpy(vf_mac_addr, mac, ETH_ALEN);
1460 		} else {
1461 			dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1462 		}
1463 	} else {
1464 		retval = -EINVAL;
1465 	}
1466 
1467 	return retval;
1468 }
1469 
1470 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1471 				  u16 vlan, u8 qos)
1472 {
1473 	struct ixgbe_hw *hw = &adapter->hw;
1474 	int err;
1475 
1476 	err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1477 	if (err)
1478 		goto out;
1479 
1480 	/* Revoke tagless access via VLAN 0 */
1481 	ixgbe_set_vf_vlan(adapter, false, 0, vf);
1482 
1483 	ixgbe_set_vmvir(adapter, vlan, qos, vf);
1484 	ixgbe_set_vmolr(hw, vf, false);
1485 
1486 	/* enable hide vlan on X550 */
1487 	if (hw->mac.type >= ixgbe_mac_X550)
1488 		ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1489 				IXGBE_QDE_HIDE_VLAN);
1490 
1491 	adapter->vfinfo[vf].pf_vlan = vlan;
1492 	adapter->vfinfo[vf].pf_qos = qos;
1493 	dev_info(&adapter->pdev->dev,
1494 		 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1495 	if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1496 		dev_warn(&adapter->pdev->dev,
1497 			 "The VF VLAN has been set, but the PF device is not up.\n");
1498 		dev_warn(&adapter->pdev->dev,
1499 			 "Bring the PF device up before attempting to use the VF device.\n");
1500 	}
1501 
1502 out:
1503 	return err;
1504 }
1505 
1506 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1507 {
1508 	struct ixgbe_hw *hw = &adapter->hw;
1509 	int err;
1510 
1511 	err = ixgbe_set_vf_vlan(adapter, false,
1512 				adapter->vfinfo[vf].pf_vlan, vf);
1513 	/* Restore tagless access via VLAN 0 */
1514 	ixgbe_set_vf_vlan(adapter, true, 0, vf);
1515 	ixgbe_clear_vmvir(adapter, vf);
1516 	ixgbe_set_vmolr(hw, vf, true);
1517 
1518 	/* disable hide VLAN on X550 */
1519 	if (hw->mac.type >= ixgbe_mac_X550)
1520 		ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1521 
1522 	adapter->vfinfo[vf].pf_vlan = 0;
1523 	adapter->vfinfo[vf].pf_qos = 0;
1524 
1525 	return err;
1526 }
1527 
1528 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1529 			  u8 qos, __be16 vlan_proto)
1530 {
1531 	int err = 0;
1532 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1533 
1534 	if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1535 		return -EINVAL;
1536 	if (vlan_proto != htons(ETH_P_8021Q))
1537 		return -EPROTONOSUPPORT;
1538 	if (vlan || qos) {
1539 		/* Check if there is already a port VLAN set, if so
1540 		 * we have to delete the old one first before we
1541 		 * can set the new one.  The usage model had
1542 		 * previously assumed the user would delete the
1543 		 * old port VLAN before setting a new one but this
1544 		 * is not necessarily the case.
1545 		 */
1546 		if (adapter->vfinfo[vf].pf_vlan)
1547 			err = ixgbe_disable_port_vlan(adapter, vf);
1548 		if (err)
1549 			goto out;
1550 		err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1551 	} else {
1552 		err = ixgbe_disable_port_vlan(adapter, vf);
1553 	}
1554 
1555 out:
1556 	return err;
1557 }
1558 
1559 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1560 {
1561 	switch (adapter->link_speed) {
1562 	case IXGBE_LINK_SPEED_100_FULL:
1563 		return 100;
1564 	case IXGBE_LINK_SPEED_1GB_FULL:
1565 		return 1000;
1566 	case IXGBE_LINK_SPEED_10GB_FULL:
1567 		return 10000;
1568 	default:
1569 		return 0;
1570 	}
1571 }
1572 
1573 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1574 {
1575 	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1576 	struct ixgbe_hw *hw = &adapter->hw;
1577 	u32 bcnrc_val = 0;
1578 	u16 queue, queues_per_pool;
1579 	u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1580 
1581 	if (tx_rate) {
1582 		/* start with base link speed value */
1583 		bcnrc_val = adapter->vf_rate_link_speed;
1584 
1585 		/* Calculate the rate factor values to set */
1586 		bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1587 		bcnrc_val /= tx_rate;
1588 
1589 		/* clear everything but the rate factor */
1590 		bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1591 			     IXGBE_RTTBCNRC_RF_DEC_MASK;
1592 
1593 		/* enable the rate scheduler */
1594 		bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1595 	}
1596 
1597 	/*
1598 	 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1599 	 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1600 	 * and 0x004 otherwise.
1601 	 */
1602 	switch (hw->mac.type) {
1603 	case ixgbe_mac_82599EB:
1604 		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1605 		break;
1606 	case ixgbe_mac_X540:
1607 		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1608 		break;
1609 	default:
1610 		break;
1611 	}
1612 
1613 	/* determine how many queues per pool based on VMDq mask */
1614 	queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1615 
1616 	/* write value for all Tx queues belonging to VF */
1617 	for (queue = 0; queue < queues_per_pool; queue++) {
1618 		unsigned int reg_idx = (vf * queues_per_pool) + queue;
1619 
1620 		IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1621 		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1622 	}
1623 }
1624 
1625 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1626 {
1627 	int i;
1628 
1629 	/* VF Tx rate limit was not set */
1630 	if (!adapter->vf_rate_link_speed)
1631 		return;
1632 
1633 	if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1634 		adapter->vf_rate_link_speed = 0;
1635 		dev_info(&adapter->pdev->dev,
1636 			 "Link speed has been changed. VF Transmit rate is disabled\n");
1637 	}
1638 
1639 	for (i = 0; i < adapter->num_vfs; i++) {
1640 		if (!adapter->vf_rate_link_speed)
1641 			adapter->vfinfo[i].tx_rate = 0;
1642 
1643 		ixgbe_set_vf_rate_limit(adapter, i);
1644 	}
1645 }
1646 
1647 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1648 			int max_tx_rate)
1649 {
1650 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1651 	int link_speed;
1652 
1653 	/* verify VF is active */
1654 	if (vf >= adapter->num_vfs)
1655 		return -EINVAL;
1656 
1657 	/* verify link is up */
1658 	if (!adapter->link_up)
1659 		return -EINVAL;
1660 
1661 	/* verify we are linked at 10Gbps */
1662 	link_speed = ixgbe_link_mbps(adapter);
1663 	if (link_speed != 10000)
1664 		return -EINVAL;
1665 
1666 	if (min_tx_rate)
1667 		return -EINVAL;
1668 
1669 	/* rate limit cannot be less than 10Mbs or greater than link speed */
1670 	if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1671 		return -EINVAL;
1672 
1673 	/* store values */
1674 	adapter->vf_rate_link_speed = link_speed;
1675 	adapter->vfinfo[vf].tx_rate = max_tx_rate;
1676 
1677 	/* update hardware configuration */
1678 	ixgbe_set_vf_rate_limit(adapter, vf);
1679 
1680 	return 0;
1681 }
1682 
1683 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1684 {
1685 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1686 	struct ixgbe_hw *hw = &adapter->hw;
1687 
1688 	if (vf >= adapter->num_vfs)
1689 		return -EINVAL;
1690 
1691 	adapter->vfinfo[vf].spoofchk_enabled = setting;
1692 
1693 	/* configure MAC spoofing */
1694 	hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1695 
1696 	/* configure VLAN spoofing */
1697 	hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1698 
1699 	/* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1700 	 * calling set_ethertype_anti_spoofing for each VF in loop below
1701 	 */
1702 	if (hw->mac.ops.set_ethertype_anti_spoofing) {
1703 		IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1704 				(IXGBE_ETQF_FILTER_EN    |
1705 				 IXGBE_ETQF_TX_ANTISPOOF |
1706 				 ETH_P_LLDP));
1707 
1708 		IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1709 				(IXGBE_ETQF_FILTER_EN |
1710 				 IXGBE_ETQF_TX_ANTISPOOF |
1711 				 ETH_P_PAUSE));
1712 
1713 		hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1714 	}
1715 
1716 	return 0;
1717 }
1718 
1719 /**
1720  * ixgbe_set_vf_link_state - Set link state
1721  * @adapter: Pointer to adapter struct
1722  * @vf: VF identifier
1723  * @state: required link state
1724  *
1725  * Set a link force state on/off a single vf
1726  **/
1727 void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1728 {
1729 	adapter->vfinfo[vf].link_state = state;
1730 
1731 	switch (state) {
1732 	case IFLA_VF_LINK_STATE_AUTO:
1733 		if (test_bit(__IXGBE_DOWN, &adapter->state))
1734 			adapter->vfinfo[vf].link_enable = false;
1735 		else
1736 			adapter->vfinfo[vf].link_enable = true;
1737 		break;
1738 	case IFLA_VF_LINK_STATE_ENABLE:
1739 		adapter->vfinfo[vf].link_enable = true;
1740 		break;
1741 	case IFLA_VF_LINK_STATE_DISABLE:
1742 		adapter->vfinfo[vf].link_enable = false;
1743 		break;
1744 	}
1745 
1746 	ixgbe_set_vf_rx_tx(adapter, vf);
1747 
1748 	/* restart the VF */
1749 	adapter->vfinfo[vf].clear_to_send = false;
1750 	ixgbe_ping_vf(adapter, vf);
1751 }
1752 
1753 /**
1754  * ixgbe_ndo_set_vf_link_state - Set link state
1755  * @netdev: network interface device structure
1756  * @vf: VF identifier
1757  * @state: required link state
1758  *
1759  * Set the link state of a specified VF, regardless of physical link state
1760  **/
1761 int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1762 {
1763 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1764 	int ret = 0;
1765 
1766 	if (vf < 0 || vf >= adapter->num_vfs) {
1767 		dev_err(&adapter->pdev->dev,
1768 			"NDO set VF link - invalid VF identifier %d\n", vf);
1769 		return -EINVAL;
1770 	}
1771 
1772 	switch (state) {
1773 	case IFLA_VF_LINK_STATE_ENABLE:
1774 		dev_info(&adapter->pdev->dev,
1775 			 "NDO set VF %d link state %d - not supported\n",
1776 			vf, state);
1777 		break;
1778 	case IFLA_VF_LINK_STATE_DISABLE:
1779 		dev_info(&adapter->pdev->dev,
1780 			 "NDO set VF %d link state disable\n", vf);
1781 		ixgbe_set_vf_link_state(adapter, vf, state);
1782 		break;
1783 	case IFLA_VF_LINK_STATE_AUTO:
1784 		dev_info(&adapter->pdev->dev,
1785 			 "NDO set VF %d link state auto\n", vf);
1786 		ixgbe_set_vf_link_state(adapter, vf, state);
1787 		break;
1788 	default:
1789 		dev_err(&adapter->pdev->dev,
1790 			"NDO set VF %d - invalid link state %d\n", vf, state);
1791 		ret = -EINVAL;
1792 	}
1793 
1794 	return ret;
1795 }
1796 
1797 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1798 				  bool setting)
1799 {
1800 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1801 
1802 	/* This operation is currently supported only for 82599 and x540
1803 	 * devices.
1804 	 */
1805 	if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1806 	    adapter->hw.mac.type >= ixgbe_mac_X550)
1807 		return -EOPNOTSUPP;
1808 
1809 	if (vf >= adapter->num_vfs)
1810 		return -EINVAL;
1811 
1812 	adapter->vfinfo[vf].rss_query_enabled = setting;
1813 
1814 	return 0;
1815 }
1816 
1817 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1818 {
1819 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1820 
1821 	if (vf >= adapter->num_vfs)
1822 		return -EINVAL;
1823 
1824 	/* nothing to do */
1825 	if (adapter->vfinfo[vf].trusted == setting)
1826 		return 0;
1827 
1828 	adapter->vfinfo[vf].trusted = setting;
1829 
1830 	/* reset VF to reconfigure features */
1831 	adapter->vfinfo[vf].clear_to_send = false;
1832 	ixgbe_ping_vf(adapter, vf);
1833 
1834 	e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1835 
1836 	return 0;
1837 }
1838 
1839 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1840 			    int vf, struct ifla_vf_info *ivi)
1841 {
1842 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1843 	if (vf >= adapter->num_vfs)
1844 		return -EINVAL;
1845 	ivi->vf = vf;
1846 	memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1847 	ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1848 	ivi->min_tx_rate = 0;
1849 	ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1850 	ivi->qos = adapter->vfinfo[vf].pf_qos;
1851 	ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1852 	ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1853 	ivi->trusted = adapter->vfinfo[vf].trusted;
1854 	return 0;
1855 }
1856