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
  24static 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
  51static 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 */
 124static 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 */
 155void 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 */
 206int 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
 271static 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
 334static 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
 355int 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
 363static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
 364				   u32 *msgbuf, u32 vf)
 365{
 366	int entries = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
 
 367	u16 *hash_list = (u16 *)&msgbuf[1];
 368	struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
 369	struct ixgbe_hw *hw = &adapter->hw;
 370	int i;
 371	u32 vector_bit;
 372	u32 vector_reg;
 373	u32 mta_reg;
 374	u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
 375
 376	/* only so many hash values supported */
 377	entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
 378
 379	/*
 380	 * salt away the number of multi cast addresses assigned
 381	 * to this VF for later use to restore when the PF multi cast
 382	 * list changes
 383	 */
 384	vfinfo->num_vf_mc_hashes = entries;
 385
 386	/*
 387	 * VFs are limited to using the MTA hash table for their multicast
 388	 * addresses
 389	 */
 390	for (i = 0; i < entries; i++) {
 391		vfinfo->vf_mc_hashes[i] = hash_list[i];
 392	}
 393
 394	for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
 395		vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
 396		vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
 397		mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
 398		mta_reg |= BIT(vector_bit);
 399		IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
 400	}
 401	vmolr |= IXGBE_VMOLR_ROMPE;
 402	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
 403
 404	return 0;
 405}
 406
 407#ifdef CONFIG_PCI_IOV
 408void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
 409{
 410	struct ixgbe_hw *hw = &adapter->hw;
 411	struct vf_data_storage *vfinfo;
 412	int i, j;
 413	u32 vector_bit;
 414	u32 vector_reg;
 415	u32 mta_reg;
 416
 417	for (i = 0; i < adapter->num_vfs; i++) {
 418		u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
 419		vfinfo = &adapter->vfinfo[i];
 420		for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
 421			hw->addr_ctrl.mta_in_use++;
 422			vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
 423			vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
 424			mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
 425			mta_reg |= BIT(vector_bit);
 426			IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
 427		}
 428
 429		if (vfinfo->num_vf_mc_hashes)
 430			vmolr |= IXGBE_VMOLR_ROMPE;
 431		else
 432			vmolr &= ~IXGBE_VMOLR_ROMPE;
 433		IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
 434	}
 435
 436	/* Restore any VF macvlans */
 437	ixgbe_full_sync_mac_table(adapter);
 438}
 439#endif
 440
 441static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
 442			     u32 vf)
 443{
 444	struct ixgbe_hw *hw = &adapter->hw;
 445	int err;
 446
 447	/* If VLAN overlaps with one the PF is currently monitoring make
 448	 * sure that we are able to allocate a VLVF entry.  This may be
 449	 * redundant but it guarantees PF will maintain visibility to
 450	 * the VLAN.
 451	 */
 452	if (add && test_bit(vid, adapter->active_vlans)) {
 453		err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
 454		if (err)
 455			return err;
 456	}
 457
 458	err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
 459
 460	if (add && !err)
 461		return err;
 462
 463	/* If we failed to add the VF VLAN or we are removing the VF VLAN
 464	 * we may need to drop the PF pool bit in order to allow us to free
 465	 * up the VLVF resources.
 466	 */
 467	if (test_bit(vid, adapter->active_vlans) ||
 468	    (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
 469		ixgbe_update_pf_promisc_vlvf(adapter, vid);
 470
 471	return err;
 472}
 473
 474static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
 475{
 476	struct ixgbe_hw *hw = &adapter->hw;
 477	u32 max_frs;
 478
 479	if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
 480		e_err(drv, "VF max_frame %d out of range\n", max_frame);
 481		return -EINVAL;
 482	}
 483
 484	/*
 485	 * For 82599EB we have to keep all PFs and VFs operating with
 486	 * the same max_frame value in order to avoid sending an oversize
 487	 * frame to a VF.  In order to guarantee this is handled correctly
 488	 * for all cases we have several special exceptions to take into
 489	 * account before we can enable the VF for receive
 490	 */
 491	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
 492		struct net_device *dev = adapter->netdev;
 493		int pf_max_frame = dev->mtu + ETH_HLEN;
 494		u32 reg_offset, vf_shift, vfre;
 495		s32 err = 0;
 496
 497#ifdef CONFIG_FCOE
 498		if (dev->features & NETIF_F_FCOE_MTU)
 499			pf_max_frame = max_t(int, pf_max_frame,
 500					     IXGBE_FCOE_JUMBO_FRAME_SIZE);
 501
 502#endif /* CONFIG_FCOE */
 503		switch (adapter->vfinfo[vf].vf_api) {
 504		case ixgbe_mbox_api_11:
 505		case ixgbe_mbox_api_12:
 506		case ixgbe_mbox_api_13:
 507		case ixgbe_mbox_api_14:
 508			/* Version 1.1 supports jumbo frames on VFs if PF has
 509			 * jumbo frames enabled which means legacy VFs are
 510			 * disabled
 511			 */
 512			if (pf_max_frame > ETH_FRAME_LEN)
 513				break;
 514			fallthrough;
 515		default:
 516			/* If the PF or VF are running w/ jumbo frames enabled
 517			 * we need to shut down the VF Rx path as we cannot
 518			 * support jumbo frames on legacy VFs
 519			 */
 520			if ((pf_max_frame > ETH_FRAME_LEN) ||
 521			    (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
 522				err = -EINVAL;
 523			break;
 524		}
 525
 526		/* determine VF receive enable location */
 527		vf_shift = vf % 32;
 528		reg_offset = vf / 32;
 529
 530		/* enable or disable receive depending on error */
 531		vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
 532		if (err)
 533			vfre &= ~BIT(vf_shift);
 534		else
 535			vfre |= BIT(vf_shift);
 536		IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
 537
 538		if (err) {
 539			e_err(drv, "VF max_frame %d out of range\n", max_frame);
 540			return err;
 541		}
 542	}
 543
 544	/* pull current max frame size from hardware */
 545	max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
 546	max_frs &= IXGBE_MHADD_MFS_MASK;
 547	max_frs >>= IXGBE_MHADD_MFS_SHIFT;
 548
 549	if (max_frs < max_frame) {
 550		max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
 551		IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
 552	}
 553
 554	e_info(hw, "VF requests change max MTU to %d\n", max_frame);
 555
 556	return 0;
 557}
 558
 559static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
 560{
 561	u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
 562	vmolr |= IXGBE_VMOLR_BAM;
 563	if (aupe)
 564		vmolr |= IXGBE_VMOLR_AUPE;
 565	else
 566		vmolr &= ~IXGBE_VMOLR_AUPE;
 567	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
 568}
 569
 570static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
 571{
 572	struct ixgbe_hw *hw = &adapter->hw;
 573
 574	IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
 575}
 576
 577static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
 578{
 579	struct ixgbe_hw *hw = &adapter->hw;
 580	u32 vlvfb_mask, pool_mask, i;
 581
 582	/* create mask for VF and other pools */
 583	pool_mask = ~BIT(VMDQ_P(0) % 32);
 584	vlvfb_mask = BIT(vf % 32);
 585
 586	/* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
 587	for (i = IXGBE_VLVF_ENTRIES; i--;) {
 588		u32 bits[2], vlvfb, vid, vfta, vlvf;
 589		u32 word = i * 2 + vf / 32;
 590		u32 mask;
 591
 592		vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
 593
 594		/* if our bit isn't set we can skip it */
 595		if (!(vlvfb & vlvfb_mask))
 596			continue;
 597
 598		/* clear our bit from vlvfb */
 599		vlvfb ^= vlvfb_mask;
 600
 601		/* create 64b mask to chedk to see if we should clear VLVF */
 602		bits[word % 2] = vlvfb;
 603		bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
 604
 605		/* if other pools are present, just remove ourselves */
 606		if (bits[(VMDQ_P(0) / 32) ^ 1] ||
 607		    (bits[VMDQ_P(0) / 32] & pool_mask))
 608			goto update_vlvfb;
 609
 610		/* if PF is present, leave VFTA */
 611		if (bits[0] || bits[1])
 612			goto update_vlvf;
 613
 614		/* if we cannot determine VLAN just remove ourselves */
 615		vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
 616		if (!vlvf)
 617			goto update_vlvfb;
 618
 619		vid = vlvf & VLAN_VID_MASK;
 620		mask = BIT(vid % 32);
 621
 622		/* clear bit from VFTA */
 623		vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
 624		if (vfta & mask)
 625			IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
 626update_vlvf:
 627		/* clear POOL selection enable */
 628		IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
 629
 630		if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
 631			vlvfb = 0;
 632update_vlvfb:
 633		/* clear pool bits */
 634		IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
 635	}
 636}
 637
 638static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
 639				int vf, int index, unsigned char *mac_addr)
 640{
 641	struct vf_macvlans *entry;
 642	bool found = false;
 643	int retval = 0;
 644
 645	if (index <= 1) {
 646		list_for_each_entry(entry, &adapter->vf_mvs.l, l) {
 
 647			if (entry->vf == vf) {
 648				entry->vf = -1;
 649				entry->free = true;
 650				entry->is_macvlan = false;
 651				ixgbe_del_mac_filter(adapter,
 652						     entry->vf_macvlan, vf);
 653			}
 654		}
 655	}
 656
 657	/*
 658	 * If index was zero then we were asked to clear the uc list
 659	 * for the VF.  We're done.
 660	 */
 661	if (!index)
 662		return 0;
 663
 664	list_for_each_entry(entry, &adapter->vf_mvs.l, l) {
 665		if (entry->free) {
 666			found = true;
 
 
 667			break;
 668		}
 669	}
 670
 671	/*
 672	 * If we traversed the entire list and didn't find a free entry
 673	 * then we're out of space on the RAR table.  It's also possible
 674	 * for the &adapter->vf_mvs.l list to be empty because the original
 675	 * memory allocation for the list failed, which is not fatal but does
 676	 * mean we can't support VF requests for MACVLAN because we couldn't
 677	 * allocate memory for the list management required.
 678	 */
 679	if (!found)
 680		return -ENOSPC;
 681
 682	retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
 683	if (retval < 0)
 684		return retval;
 685
 686	entry->free = false;
 687	entry->is_macvlan = true;
 688	entry->vf = vf;
 689	memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
 690
 691	return 0;
 692}
 693
 694static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
 695{
 696	struct ixgbe_hw *hw = &adapter->hw;
 697	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
 698	struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
 699	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
 700	u8 num_tcs = adapter->hw_tcs;
 701	u32 reg_val;
 702	u32 queue;
 703
 704	/* remove VLAN filters beloning to this VF */
 705	ixgbe_clear_vf_vlans(adapter, vf);
 706
 707	/* add back PF assigned VLAN or VLAN 0 */
 708	ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
 709
 710	/* reset offloads to defaults */
 711	ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
 712
 713	/* set outgoing tags for VFs */
 714	if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
 715		ixgbe_clear_vmvir(adapter, vf);
 716	} else {
 717		if (vfinfo->pf_qos || !num_tcs)
 718			ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
 719					vfinfo->pf_qos, vf);
 720		else
 721			ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
 722					adapter->default_up, vf);
 723
 724		if (vfinfo->spoofchk_enabled) {
 725			hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
 726			hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
 727		}
 728	}
 729
 730	/* reset multicast table array for vf */
 731	adapter->vfinfo[vf].num_vf_mc_hashes = 0;
 732
 733	/* clear any ipsec table info */
 734	ixgbe_ipsec_vf_clear(adapter, vf);
 735
 736	/* Flush and reset the mta with the new values */
 737	ixgbe_set_rx_mode(adapter->netdev);
 738
 739	ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
 740	ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
 741
 742	/* reset VF api back to unknown */
 743	adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
 744
 745	/* Restart each queue for given VF */
 746	for (queue = 0; queue < q_per_pool; queue++) {
 747		unsigned int reg_idx = (vf * q_per_pool) + queue;
 748
 749		reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
 750
 751		/* Re-enabling only configured queues */
 752		if (reg_val) {
 753			reg_val |= IXGBE_TXDCTL_ENABLE;
 754			IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
 755			reg_val &= ~IXGBE_TXDCTL_ENABLE;
 756			IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
 757		}
 758	}
 759
 760	IXGBE_WRITE_FLUSH(hw);
 761}
 762
 763static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
 764{
 765	struct ixgbe_hw *hw = &adapter->hw;
 766	u32 word;
 767
 768	/* Clear VF's mailbox memory */
 769	for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
 770		IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
 771
 772	IXGBE_WRITE_FLUSH(hw);
 773}
 774
 775static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
 776			    int vf, unsigned char *mac_addr)
 777{
 778	s32 retval;
 779
 780	ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
 781	retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
 782	if (retval >= 0)
 783		memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
 784		       ETH_ALEN);
 785	else
 786		eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
 787
 788	return retval;
 789}
 790
 791int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
 792{
 793	struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
 794	unsigned int vfn = (event_mask & 0x3f);
 795
 796	bool enable = ((event_mask & 0x10000000U) != 0);
 797
 798	if (enable)
 799		eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
 800
 801	return 0;
 802}
 803
 804static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
 805				   u32 qde)
 806{
 807	struct ixgbe_hw *hw = &adapter->hw;
 808	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
 809	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
 810	int i;
 811
 812	for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
 813		u32 reg;
 814
 815		/* flush previous write */
 816		IXGBE_WRITE_FLUSH(hw);
 817
 818		/* indicate to hardware that we want to set drop enable */
 819		reg = IXGBE_QDE_WRITE | qde;
 820		reg |= i <<  IXGBE_QDE_IDX_SHIFT;
 821		IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
 822	}
 823}
 824
 825/**
 826 * ixgbe_set_vf_rx_tx - Set VF rx tx
 827 * @adapter: Pointer to adapter struct
 828 * @vf: VF identifier
 829 *
 830 * Set or reset correct transmit and receive for vf
 831 **/
 832static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf)
 833{
 834	u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
 835	struct ixgbe_hw *hw = &adapter->hw;
 836	u32 reg_offset, vf_shift;
 837
 838	vf_shift = vf % 32;
 839	reg_offset = vf / 32;
 840
 841	reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
 842	reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
 843
 844	if (adapter->vfinfo[vf].link_enable) {
 845		reg_req_tx = reg_cur_tx | 1 << vf_shift;
 846		reg_req_rx = reg_cur_rx | 1 << vf_shift;
 847	} else {
 848		reg_req_tx = reg_cur_tx & ~(1 << vf_shift);
 849		reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
 850	}
 851
 852	/* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
 853	 * For more info take a look at ixgbe_set_vf_lpe
 854	 */
 855	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
 856		struct net_device *dev = adapter->netdev;
 857		int pf_max_frame = dev->mtu + ETH_HLEN;
 858
 859#if IS_ENABLED(CONFIG_FCOE)
 860		if (dev->features & NETIF_F_FCOE_MTU)
 861			pf_max_frame = max_t(int, pf_max_frame,
 862					     IXGBE_FCOE_JUMBO_FRAME_SIZE);
 863#endif /* CONFIG_FCOE */
 864
 865		if (pf_max_frame > ETH_FRAME_LEN)
 866			reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
 867	}
 868
 869	/* Enable/Disable particular VF */
 870	if (reg_cur_tx != reg_req_tx)
 871		IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx);
 872	if (reg_cur_rx != reg_req_rx)
 873		IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx);
 874}
 875
 876static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
 877{
 878	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
 879	struct ixgbe_hw *hw = &adapter->hw;
 880	unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
 881	u32 reg, reg_offset, vf_shift;
 882	u32 msgbuf[4] = {0, 0, 0, 0};
 883	u8 *addr = (u8 *)(&msgbuf[1]);
 884	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
 885	int i;
 886
 887	e_info(probe, "VF Reset msg received from vf %d\n", vf);
 888
 889	/* reset the filters for the device */
 890	ixgbe_vf_reset_event(adapter, vf);
 891
 892	ixgbe_vf_clear_mbx(adapter, vf);
 893
 894	/* set vf mac address */
 895	if (!is_zero_ether_addr(vf_mac))
 896		ixgbe_set_vf_mac(adapter, vf, vf_mac);
 897
 898	vf_shift = vf % 32;
 899	reg_offset = vf / 32;
 900
 901	/* force drop enable for all VF Rx queues */
 902	reg = IXGBE_QDE_ENABLE;
 903	if (adapter->vfinfo[vf].pf_vlan)
 904		reg |= IXGBE_QDE_HIDE_VLAN;
 905
 906	ixgbe_write_qde(adapter, vf, reg);
 907
 908	ixgbe_set_vf_rx_tx(adapter, vf);
 909
 910	/* enable VF mailbox for further messages */
 911	adapter->vfinfo[vf].clear_to_send = true;
 912
 913	/* Enable counting of spoofed packets in the SSVPC register */
 914	reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
 915	reg |= BIT(vf_shift);
 916	IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
 917
 918	/*
 919	 * Reset the VFs TDWBAL and TDWBAH registers
 920	 * which are not cleared by an FLR
 921	 */
 922	for (i = 0; i < q_per_pool; i++) {
 923		IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
 924		IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
 925	}
 926
 927	/* reply to reset with ack and vf mac address */
 928	msgbuf[0] = IXGBE_VF_RESET;
 929	if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
 930		msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
 931		memcpy(addr, vf_mac, ETH_ALEN);
 932	} else {
 933		msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
 934	}
 935
 936	/*
 937	 * Piggyback the multicast filter type so VF can compute the
 938	 * correct vectors
 939	 */
 940	msgbuf[3] = hw->mac.mc_filter_type;
 941	ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
 942
 943	return 0;
 944}
 945
 946static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
 947				 u32 *msgbuf, u32 vf)
 948{
 949	u8 *new_mac = ((u8 *)(&msgbuf[1]));
 950
 951	if (!is_valid_ether_addr(new_mac)) {
 952		e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
 953		return -1;
 954	}
 955
 956	if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
 957	    !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
 958		e_warn(drv,
 959		       "VF %d attempted to override administratively set MAC address\n"
 960		       "Reload the VF driver to resume operations\n",
 961		       vf);
 962		return -1;
 963	}
 964
 965	return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
 966}
 967
 968static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
 969				 u32 *msgbuf, u32 vf)
 970{
 971	u32 add = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
 972	u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
 973	u8 tcs = adapter->hw_tcs;
 974
 975	if (adapter->vfinfo[vf].pf_vlan || tcs) {
 976		e_warn(drv,
 977		       "VF %d attempted to override administratively set VLAN configuration\n"
 978		       "Reload the VF driver to resume operations\n",
 979		       vf);
 980		return -1;
 981	}
 982
 983	/* VLAN 0 is a special case, don't allow it to be removed */
 984	if (!vid && !add)
 985		return 0;
 986
 987	return ixgbe_set_vf_vlan(adapter, add, vid, vf);
 988}
 989
 990static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
 991				    u32 *msgbuf, u32 vf)
 992{
 993	u8 *new_mac = ((u8 *)(&msgbuf[1]));
 994	int index = FIELD_GET(IXGBE_VT_MSGINFO_MASK, msgbuf[0]);
 
 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
1033static 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
1055static 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
1097static 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
1132static 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
1156static 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_ROMPE |
1188			  IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1189		enable = IXGBE_VMOLR_BAM;
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 = IXGBE_VMOLR_VPE;
1212		enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1213			 IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
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
1226out:
1227	msgbuf[1] = xcast_mode;
1228
1229	return 0;
1230}
1231
1232static 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
1252static 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 = -EIO;
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
1345static 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
1355void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1356{
1357	struct ixgbe_hw *hw = &adapter->hw;
1358	unsigned long flags;
1359	u32 vf;
1360
1361	spin_lock_irqsave(&adapter->vfs_lock, flags);
1362	for (vf = 0; vf < adapter->num_vfs; vf++) {
1363		/* process any reset requests */
1364		if (!ixgbe_check_for_rst(hw, vf))
1365			ixgbe_vf_reset_event(adapter, vf);
1366
1367		/* process any messages pending */
1368		if (!ixgbe_check_for_msg(hw, vf))
1369			ixgbe_rcv_msg_from_vf(adapter, vf);
1370
1371		/* process any acks */
1372		if (!ixgbe_check_for_ack(hw, vf))
1373			ixgbe_rcv_ack_from_vf(adapter, vf);
1374	}
1375	spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1376}
1377
1378static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1379{
1380	struct ixgbe_hw *hw = &adapter->hw;
1381	u32 ping;
1382
1383	ping = IXGBE_PF_CONTROL_MSG;
1384	if (adapter->vfinfo[vf].clear_to_send)
1385		ping |= IXGBE_VT_MSGTYPE_CTS;
1386	ixgbe_write_mbx(hw, &ping, 1, vf);
1387}
1388
1389void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1390{
1391	struct ixgbe_hw *hw = &adapter->hw;
1392	u32 ping;
1393	int i;
1394
1395	for (i = 0 ; i < adapter->num_vfs; i++) {
1396		ping = IXGBE_PF_CONTROL_MSG;
1397		if (adapter->vfinfo[i].clear_to_send)
1398			ping |= IXGBE_VT_MSGTYPE_CTS;
1399		ixgbe_write_mbx(hw, &ping, 1, i);
1400	}
1401}
1402
1403/**
1404 * ixgbe_set_all_vfs - update vfs queues
1405 * @adapter: Pointer to adapter struct
1406 *
1407 * Update setting transmit and receive queues for all vfs
1408 **/
1409void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1410{
1411	int i;
1412
1413	for (i = 0 ; i < adapter->num_vfs; i++)
1414		ixgbe_set_vf_link_state(adapter, i,
1415					adapter->vfinfo[i].link_state);
1416}
1417
1418int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1419{
1420	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1421	s32 retval;
1422
1423	if (vf >= adapter->num_vfs)
1424		return -EINVAL;
1425
1426	if (is_valid_ether_addr(mac)) {
1427		dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1428			 mac, vf);
1429		dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1430
1431		retval = ixgbe_set_vf_mac(adapter, vf, mac);
1432		if (retval >= 0) {
1433			adapter->vfinfo[vf].pf_set_mac = true;
1434
1435			if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1436				dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1437				dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1438			}
1439		} else {
1440			dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1441		}
1442	} else if (is_zero_ether_addr(mac)) {
1443		unsigned char *vf_mac_addr =
1444					   adapter->vfinfo[vf].vf_mac_addresses;
1445
1446		/* nothing to do */
1447		if (is_zero_ether_addr(vf_mac_addr))
1448			return 0;
1449
1450		dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1451
1452		retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1453		if (retval >= 0) {
1454			adapter->vfinfo[vf].pf_set_mac = false;
1455			memcpy(vf_mac_addr, mac, ETH_ALEN);
1456		} else {
1457			dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1458		}
1459	} else {
1460		retval = -EINVAL;
1461	}
1462
1463	return retval;
1464}
1465
1466static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1467				  u16 vlan, u8 qos)
1468{
1469	struct ixgbe_hw *hw = &adapter->hw;
1470	int err;
1471
1472	err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1473	if (err)
1474		goto out;
1475
1476	/* Revoke tagless access via VLAN 0 */
1477	ixgbe_set_vf_vlan(adapter, false, 0, vf);
1478
1479	ixgbe_set_vmvir(adapter, vlan, qos, vf);
1480	ixgbe_set_vmolr(hw, vf, false);
1481
1482	/* enable hide vlan on X550 */
1483	if (hw->mac.type >= ixgbe_mac_X550)
1484		ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1485				IXGBE_QDE_HIDE_VLAN);
1486
1487	adapter->vfinfo[vf].pf_vlan = vlan;
1488	adapter->vfinfo[vf].pf_qos = qos;
1489	dev_info(&adapter->pdev->dev,
1490		 "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1491	if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1492		dev_warn(&adapter->pdev->dev,
1493			 "The VF VLAN has been set, but the PF device is not up.\n");
1494		dev_warn(&adapter->pdev->dev,
1495			 "Bring the PF device up before attempting to use the VF device.\n");
1496	}
1497
1498out:
1499	return err;
1500}
1501
1502static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1503{
1504	struct ixgbe_hw *hw = &adapter->hw;
1505	int err;
1506
1507	err = ixgbe_set_vf_vlan(adapter, false,
1508				adapter->vfinfo[vf].pf_vlan, vf);
1509	/* Restore tagless access via VLAN 0 */
1510	ixgbe_set_vf_vlan(adapter, true, 0, vf);
1511	ixgbe_clear_vmvir(adapter, vf);
1512	ixgbe_set_vmolr(hw, vf, true);
1513
1514	/* disable hide VLAN on X550 */
1515	if (hw->mac.type >= ixgbe_mac_X550)
1516		ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1517
1518	adapter->vfinfo[vf].pf_vlan = 0;
1519	adapter->vfinfo[vf].pf_qos = 0;
1520
1521	return err;
1522}
1523
1524int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1525			  u8 qos, __be16 vlan_proto)
1526{
1527	int err = 0;
1528	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1529
1530	if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1531		return -EINVAL;
1532	if (vlan_proto != htons(ETH_P_8021Q))
1533		return -EPROTONOSUPPORT;
1534	if (vlan || qos) {
1535		/* Check if there is already a port VLAN set, if so
1536		 * we have to delete the old one first before we
1537		 * can set the new one.  The usage model had
1538		 * previously assumed the user would delete the
1539		 * old port VLAN before setting a new one but this
1540		 * is not necessarily the case.
1541		 */
1542		if (adapter->vfinfo[vf].pf_vlan)
1543			err = ixgbe_disable_port_vlan(adapter, vf);
1544		if (err)
1545			goto out;
1546		err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1547	} else {
1548		err = ixgbe_disable_port_vlan(adapter, vf);
1549	}
1550
1551out:
1552	return err;
1553}
1554
1555int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1556{
1557	switch (adapter->link_speed) {
1558	case IXGBE_LINK_SPEED_100_FULL:
1559		return 100;
1560	case IXGBE_LINK_SPEED_1GB_FULL:
1561		return 1000;
1562	case IXGBE_LINK_SPEED_10GB_FULL:
1563		return 10000;
1564	default:
1565		return 0;
1566	}
1567}
1568
1569static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1570{
1571	struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1572	struct ixgbe_hw *hw = &adapter->hw;
1573	u32 bcnrc_val = 0;
1574	u16 queue, queues_per_pool;
1575	u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1576
1577	if (tx_rate) {
1578		/* start with base link speed value */
1579		bcnrc_val = adapter->vf_rate_link_speed;
1580
1581		/* Calculate the rate factor values to set */
1582		bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1583		bcnrc_val /= tx_rate;
1584
1585		/* clear everything but the rate factor */
1586		bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1587			     IXGBE_RTTBCNRC_RF_DEC_MASK;
1588
1589		/* enable the rate scheduler */
1590		bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1591	}
1592
1593	/*
1594	 * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1595	 * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1596	 * and 0x004 otherwise.
1597	 */
1598	switch (hw->mac.type) {
1599	case ixgbe_mac_82599EB:
1600		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1601		break;
1602	case ixgbe_mac_X540:
1603		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1604		break;
1605	default:
1606		break;
1607	}
1608
1609	/* determine how many queues per pool based on VMDq mask */
1610	queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1611
1612	/* write value for all Tx queues belonging to VF */
1613	for (queue = 0; queue < queues_per_pool; queue++) {
1614		unsigned int reg_idx = (vf * queues_per_pool) + queue;
1615
1616		IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1617		IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1618	}
1619}
1620
1621void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1622{
1623	int i;
1624
1625	/* VF Tx rate limit was not set */
1626	if (!adapter->vf_rate_link_speed)
1627		return;
1628
1629	if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1630		adapter->vf_rate_link_speed = 0;
1631		dev_info(&adapter->pdev->dev,
1632			 "Link speed has been changed. VF Transmit rate is disabled\n");
1633	}
1634
1635	for (i = 0; i < adapter->num_vfs; i++) {
1636		if (!adapter->vf_rate_link_speed)
1637			adapter->vfinfo[i].tx_rate = 0;
1638
1639		ixgbe_set_vf_rate_limit(adapter, i);
1640	}
1641}
1642
1643int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1644			int max_tx_rate)
1645{
1646	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1647	int link_speed;
1648
1649	/* verify VF is active */
1650	if (vf >= adapter->num_vfs)
1651		return -EINVAL;
1652
1653	/* verify link is up */
1654	if (!adapter->link_up)
1655		return -EINVAL;
1656
1657	/* verify we are linked at 10Gbps */
1658	link_speed = ixgbe_link_mbps(adapter);
1659	if (link_speed != 10000)
1660		return -EINVAL;
1661
1662	if (min_tx_rate)
1663		return -EINVAL;
1664
1665	/* rate limit cannot be less than 10Mbs or greater than link speed */
1666	if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1667		return -EINVAL;
1668
1669	/* store values */
1670	adapter->vf_rate_link_speed = link_speed;
1671	adapter->vfinfo[vf].tx_rate = max_tx_rate;
1672
1673	/* update hardware configuration */
1674	ixgbe_set_vf_rate_limit(adapter, vf);
1675
1676	return 0;
1677}
1678
1679int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1680{
1681	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1682	struct ixgbe_hw *hw = &adapter->hw;
1683
1684	if (vf >= adapter->num_vfs)
1685		return -EINVAL;
1686
1687	adapter->vfinfo[vf].spoofchk_enabled = setting;
1688
1689	/* configure MAC spoofing */
1690	hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1691
1692	/* configure VLAN spoofing */
1693	hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1694
1695	/* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1696	 * calling set_ethertype_anti_spoofing for each VF in loop below
1697	 */
1698	if (hw->mac.ops.set_ethertype_anti_spoofing) {
1699		IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1700				(IXGBE_ETQF_FILTER_EN    |
1701				 IXGBE_ETQF_TX_ANTISPOOF |
1702				 ETH_P_LLDP));
1703
1704		IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1705				(IXGBE_ETQF_FILTER_EN |
1706				 IXGBE_ETQF_TX_ANTISPOOF |
1707				 ETH_P_PAUSE));
1708
1709		hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1710	}
1711
1712	return 0;
1713}
1714
1715/**
1716 * ixgbe_set_vf_link_state - Set link state
1717 * @adapter: Pointer to adapter struct
1718 * @vf: VF identifier
1719 * @state: required link state
1720 *
1721 * Set a link force state on/off a single vf
1722 **/
1723void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1724{
1725	adapter->vfinfo[vf].link_state = state;
1726
1727	switch (state) {
1728	case IFLA_VF_LINK_STATE_AUTO:
1729		if (test_bit(__IXGBE_DOWN, &adapter->state))
1730			adapter->vfinfo[vf].link_enable = false;
1731		else
1732			adapter->vfinfo[vf].link_enable = true;
1733		break;
1734	case IFLA_VF_LINK_STATE_ENABLE:
1735		adapter->vfinfo[vf].link_enable = true;
1736		break;
1737	case IFLA_VF_LINK_STATE_DISABLE:
1738		adapter->vfinfo[vf].link_enable = false;
1739		break;
1740	}
1741
1742	ixgbe_set_vf_rx_tx(adapter, vf);
1743
1744	/* restart the VF */
1745	adapter->vfinfo[vf].clear_to_send = false;
1746	ixgbe_ping_vf(adapter, vf);
1747}
1748
1749/**
1750 * ixgbe_ndo_set_vf_link_state - Set link state
1751 * @netdev: network interface device structure
1752 * @vf: VF identifier
1753 * @state: required link state
1754 *
1755 * Set the link state of a specified VF, regardless of physical link state
1756 **/
1757int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1758{
1759	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1760	int ret = 0;
1761
1762	if (vf < 0 || vf >= adapter->num_vfs) {
1763		dev_err(&adapter->pdev->dev,
1764			"NDO set VF link - invalid VF identifier %d\n", vf);
1765		return -EINVAL;
1766	}
1767
1768	switch (state) {
1769	case IFLA_VF_LINK_STATE_ENABLE:
1770		dev_info(&adapter->pdev->dev,
1771			 "NDO set VF %d link state %d - not supported\n",
1772			vf, state);
1773		break;
1774	case IFLA_VF_LINK_STATE_DISABLE:
1775		dev_info(&adapter->pdev->dev,
1776			 "NDO set VF %d link state disable\n", vf);
1777		ixgbe_set_vf_link_state(adapter, vf, state);
1778		break;
1779	case IFLA_VF_LINK_STATE_AUTO:
1780		dev_info(&adapter->pdev->dev,
1781			 "NDO set VF %d link state auto\n", vf);
1782		ixgbe_set_vf_link_state(adapter, vf, state);
1783		break;
1784	default:
1785		dev_err(&adapter->pdev->dev,
1786			"NDO set VF %d - invalid link state %d\n", vf, state);
1787		ret = -EINVAL;
1788	}
1789
1790	return ret;
1791}
1792
1793int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1794				  bool setting)
1795{
1796	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1797
1798	/* This operation is currently supported only for 82599 and x540
1799	 * devices.
1800	 */
1801	if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1802	    adapter->hw.mac.type >= ixgbe_mac_X550)
1803		return -EOPNOTSUPP;
1804
1805	if (vf >= adapter->num_vfs)
1806		return -EINVAL;
1807
1808	adapter->vfinfo[vf].rss_query_enabled = setting;
1809
1810	return 0;
1811}
1812
1813int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1814{
1815	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1816
1817	if (vf >= adapter->num_vfs)
1818		return -EINVAL;
1819
1820	/* nothing to do */
1821	if (adapter->vfinfo[vf].trusted == setting)
1822		return 0;
1823
1824	adapter->vfinfo[vf].trusted = setting;
1825
1826	/* reset VF to reconfigure features */
1827	adapter->vfinfo[vf].clear_to_send = false;
1828	ixgbe_ping_vf(adapter, vf);
1829
1830	e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1831
1832	return 0;
1833}
1834
1835int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1836			    int vf, struct ifla_vf_info *ivi)
1837{
1838	struct ixgbe_adapter *adapter = netdev_priv(netdev);
1839	if (vf >= adapter->num_vfs)
1840		return -EINVAL;
1841	ivi->vf = vf;
1842	memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1843	ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1844	ivi->min_tx_rate = 0;
1845	ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1846	ivi->qos = adapter->vfinfo[vf].pf_qos;
1847	ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1848	ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1849	ivi->trusted = adapter->vfinfo[vf].trusted;
1850	ivi->linkstate = adapter->vfinfo[vf].link_state;
1851	return 0;
1852}