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