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0001 // SPDX-License-Identifier: GPL-2.0
0002 /* Copyright(c) 1999 - 2018 Intel Corporation. */
0003 
0004 #include <linux/types.h>
0005 #include <linux/module.h>
0006 #include <linux/pci.h>
0007 #include <linux/netdevice.h>
0008 #include <linux/vmalloc.h>
0009 #include <linux/string.h>
0010 #include <linux/in.h>
0011 #include <linux/ip.h>
0012 #include <linux/tcp.h>
0013 #include <linux/ipv6.h>
0014 #include <linux/if_bridge.h>
0015 #ifdef NETIF_F_HW_VLAN_CTAG_TX
0016 #include <linux/if_vlan.h>
0017 #endif
0018 
0019 #include "ixgbe.h"
0020 #include "ixgbe_type.h"
0021 #include "ixgbe_sriov.h"
0022 
0023 #ifdef CONFIG_PCI_IOV
0024 static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter,
0025                        unsigned int num_vfs)
0026 {
0027     struct ixgbe_hw *hw = &adapter->hw;
0028     struct vf_macvlans *mv_list;
0029     int num_vf_macvlans, i;
0030 
0031     num_vf_macvlans = hw->mac.num_rar_entries -
0032               (IXGBE_MAX_PF_MACVLANS + 1 + num_vfs);
0033     if (!num_vf_macvlans)
0034         return;
0035 
0036     mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
0037               GFP_KERNEL);
0038     if (mv_list) {
0039         /* Initialize list of VF macvlans */
0040         INIT_LIST_HEAD(&adapter->vf_mvs.l);
0041         for (i = 0; i < num_vf_macvlans; i++) {
0042             mv_list[i].vf = -1;
0043             mv_list[i].free = true;
0044             list_add(&mv_list[i].l, &adapter->vf_mvs.l);
0045         }
0046         adapter->mv_list = mv_list;
0047     }
0048 }
0049 
0050 static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
0051                 unsigned int num_vfs)
0052 {
0053     struct ixgbe_hw *hw = &adapter->hw;
0054     int i;
0055 
0056     if (adapter->xdp_prog) {
0057         e_warn(probe, "SRIOV is not supported with XDP\n");
0058         return -EINVAL;
0059     }
0060 
0061     /* Enable VMDq flag so device will be set in VM mode */
0062     adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
0063               IXGBE_FLAG_VMDQ_ENABLED;
0064 
0065     /* Allocate memory for per VF control structures */
0066     adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
0067                   GFP_KERNEL);
0068     if (!adapter->vfinfo)
0069         return -ENOMEM;
0070 
0071     adapter->num_vfs = num_vfs;
0072 
0073     ixgbe_alloc_vf_macvlans(adapter, num_vfs);
0074     adapter->ring_feature[RING_F_VMDQ].offset = num_vfs;
0075 
0076     /* Initialize default switching mode VEB */
0077     IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
0078     adapter->bridge_mode = BRIDGE_MODE_VEB;
0079 
0080     /* limit traffic classes based on VFs enabled */
0081     if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && (num_vfs < 16)) {
0082         adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS;
0083         adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS;
0084     } else if (num_vfs < 32) {
0085         adapter->dcb_cfg.num_tcs.pg_tcs = 4;
0086         adapter->dcb_cfg.num_tcs.pfc_tcs = 4;
0087     } else {
0088         adapter->dcb_cfg.num_tcs.pg_tcs = 1;
0089         adapter->dcb_cfg.num_tcs.pfc_tcs = 1;
0090     }
0091 
0092     /* Disable RSC when in SR-IOV mode */
0093     adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE |
0094                  IXGBE_FLAG2_RSC_ENABLED);
0095 
0096     for (i = 0; i < num_vfs; i++) {
0097         /* enable spoof checking for all VFs */
0098         adapter->vfinfo[i].spoofchk_enabled = true;
0099         adapter->vfinfo[i].link_enable = true;
0100 
0101         /* We support VF RSS querying only for 82599 and x540
0102          * devices at the moment. These devices share RSS
0103          * indirection table and RSS hash key with PF therefore
0104          * we want to disable the querying by default.
0105          */
0106         adapter->vfinfo[i].rss_query_enabled = false;
0107 
0108         /* Untrust all VFs */
0109         adapter->vfinfo[i].trusted = false;
0110 
0111         /* set the default xcast mode */
0112         adapter->vfinfo[i].xcast_mode = IXGBEVF_XCAST_MODE_NONE;
0113     }
0114 
0115     e_info(probe, "SR-IOV enabled with %d VFs\n", num_vfs);
0116     return 0;
0117 }
0118 
0119 /**
0120  * ixgbe_get_vfs - Find and take references to all vf devices
0121  * @adapter: Pointer to adapter struct
0122  */
0123 static void ixgbe_get_vfs(struct ixgbe_adapter *adapter)
0124 {
0125     struct pci_dev *pdev = adapter->pdev;
0126     u16 vendor = pdev->vendor;
0127     struct pci_dev *vfdev;
0128     int vf = 0;
0129     u16 vf_id;
0130     int pos;
0131 
0132     pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
0133     if (!pos)
0134         return;
0135     pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
0136 
0137     vfdev = pci_get_device(vendor, vf_id, NULL);
0138     for (; vfdev; vfdev = pci_get_device(vendor, vf_id, vfdev)) {
0139         if (!vfdev->is_virtfn)
0140             continue;
0141         if (vfdev->physfn != pdev)
0142             continue;
0143         if (vf >= adapter->num_vfs)
0144             continue;
0145         pci_dev_get(vfdev);
0146         adapter->vfinfo[vf].vfdev = vfdev;
0147         ++vf;
0148     }
0149 }
0150 
0151 /* Note this function is called when the user wants to enable SR-IOV
0152  * VFs using the now deprecated module parameter
0153  */
0154 void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs)
0155 {
0156     int pre_existing_vfs = 0;
0157     unsigned int num_vfs;
0158 
0159     pre_existing_vfs = pci_num_vf(adapter->pdev);
0160     if (!pre_existing_vfs && !max_vfs)
0161         return;
0162 
0163     /* If there are pre-existing VFs then we have to force
0164      * use of that many - over ride any module parameter value.
0165      * This may result from the user unloading the PF driver
0166      * while VFs were assigned to guest VMs or because the VFs
0167      * have been created via the new PCI SR-IOV sysfs interface.
0168      */
0169     if (pre_existing_vfs) {
0170         num_vfs = pre_existing_vfs;
0171         dev_warn(&adapter->pdev->dev,
0172              "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n");
0173     } else {
0174         int err;
0175         /*
0176          * The 82599 supports up to 64 VFs per physical function
0177          * but this implementation limits allocation to 63 so that
0178          * basic networking resources are still available to the
0179          * physical function.  If the user requests greater than
0180          * 63 VFs then it is an error - reset to default of zero.
0181          */
0182         num_vfs = min_t(unsigned int, max_vfs, IXGBE_MAX_VFS_DRV_LIMIT);
0183 
0184         err = pci_enable_sriov(adapter->pdev, num_vfs);
0185         if (err) {
0186             e_err(probe, "Failed to enable PCI sriov: %d\n", err);
0187             return;
0188         }
0189     }
0190 
0191     if (!__ixgbe_enable_sriov(adapter, num_vfs)) {
0192         ixgbe_get_vfs(adapter);
0193         return;
0194     }
0195 
0196     /* If we have gotten to this point then there is no memory available
0197      * to manage the VF devices - print message and bail.
0198      */
0199     e_err(probe, "Unable to allocate memory for VF Data Storage - "
0200           "SRIOV disabled\n");
0201     ixgbe_disable_sriov(adapter);
0202 }
0203 
0204 #endif /* #ifdef CONFIG_PCI_IOV */
0205 int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
0206 {
0207     unsigned int num_vfs = adapter->num_vfs, vf;
0208     unsigned long flags;
0209     int rss;
0210 
0211     spin_lock_irqsave(&adapter->vfs_lock, flags);
0212     /* set num VFs to 0 to prevent access to vfinfo */
0213     adapter->num_vfs = 0;
0214     spin_unlock_irqrestore(&adapter->vfs_lock, flags);
0215 
0216     /* put the reference to all of the vf devices */
0217     for (vf = 0; vf < num_vfs; ++vf) {
0218         struct pci_dev *vfdev = adapter->vfinfo[vf].vfdev;
0219 
0220         if (!vfdev)
0221             continue;
0222         adapter->vfinfo[vf].vfdev = NULL;
0223         pci_dev_put(vfdev);
0224     }
0225 
0226     /* free VF control structures */
0227     kfree(adapter->vfinfo);
0228     adapter->vfinfo = NULL;
0229 
0230     /* free macvlan list */
0231     kfree(adapter->mv_list);
0232     adapter->mv_list = NULL;
0233 
0234     /* if SR-IOV is already disabled then there is nothing to do */
0235     if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
0236         return 0;
0237 
0238 #ifdef CONFIG_PCI_IOV
0239     /*
0240      * If our VFs are assigned we cannot shut down SR-IOV
0241      * without causing issues, so just leave the hardware
0242      * available but disabled
0243      */
0244     if (pci_vfs_assigned(adapter->pdev)) {
0245         e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n");
0246         return -EPERM;
0247     }
0248     /* disable iov and allow time for transactions to clear */
0249     pci_disable_sriov(adapter->pdev);
0250 #endif
0251 
0252     /* Disable VMDq flag so device will be set in VM mode */
0253     if (bitmap_weight(adapter->fwd_bitmask, adapter->num_rx_pools) == 1) {
0254         adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
0255         adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
0256         rss = min_t(int, ixgbe_max_rss_indices(adapter),
0257                 num_online_cpus());
0258     } else {
0259         rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
0260     }
0261 
0262     adapter->ring_feature[RING_F_VMDQ].offset = 0;
0263     adapter->ring_feature[RING_F_RSS].limit = rss;
0264 
0265     /* take a breather then clean up driver data */
0266     msleep(100);
0267     return 0;
0268 }
0269 
0270 static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs)
0271 {
0272 #ifdef CONFIG_PCI_IOV
0273     struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
0274     int pre_existing_vfs = pci_num_vf(dev);
0275     int err = 0, num_rx_pools, i, limit;
0276     u8 num_tc;
0277 
0278     if (pre_existing_vfs && pre_existing_vfs != num_vfs)
0279         err = ixgbe_disable_sriov(adapter);
0280     else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
0281         return num_vfs;
0282 
0283     if (err)
0284         return err;
0285 
0286     /* While the SR-IOV capability structure reports total VFs to be 64,
0287      * we limit the actual number allocated as below based on two factors.
0288      *    Num_TCs   MAX_VFs
0289      *  1     63
0290      *  <=4   31
0291      *  >4    15
0292      * First, we reserve some transmit/receive resources for the PF.
0293      * Second, VMDQ also uses the same pools that SR-IOV does. We need to
0294      * account for this, so that we don't accidentally allocate more VFs
0295      * than we have available pools. The PCI bus driver already checks for
0296      * other values out of range.
0297      */
0298     num_tc = adapter->hw_tcs;
0299     num_rx_pools = bitmap_weight(adapter->fwd_bitmask,
0300                      adapter->num_rx_pools);
0301     limit = (num_tc > 4) ? IXGBE_MAX_VFS_8TC :
0302         (num_tc > 1) ? IXGBE_MAX_VFS_4TC : IXGBE_MAX_VFS_1TC;
0303 
0304     if (num_vfs > (limit - num_rx_pools)) {
0305         e_dev_err("Currently configured with %d TCs, and %d offloaded macvlans. Creating more than %d VFs is not allowed\n",
0306               num_tc, num_rx_pools - 1, limit - num_rx_pools);
0307         return -EPERM;
0308     }
0309 
0310     err = __ixgbe_enable_sriov(adapter, num_vfs);
0311     if (err)
0312         return  err;
0313 
0314     for (i = 0; i < num_vfs; i++)
0315         ixgbe_vf_configuration(dev, (i | 0x10000000));
0316 
0317     /* reset before enabling SRIOV to avoid mailbox issues */
0318     ixgbe_sriov_reinit(adapter);
0319 
0320     err = pci_enable_sriov(dev, num_vfs);
0321     if (err) {
0322         e_dev_warn("Failed to enable PCI sriov: %d\n", err);
0323         return err;
0324     }
0325     ixgbe_get_vfs(adapter);
0326 
0327     return num_vfs;
0328 #else
0329     return 0;
0330 #endif
0331 }
0332 
0333 static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
0334 {
0335     struct ixgbe_adapter *adapter = pci_get_drvdata(dev);
0336     int err;
0337 #ifdef CONFIG_PCI_IOV
0338     u32 current_flags = adapter->flags;
0339     int prev_num_vf = pci_num_vf(dev);
0340 #endif
0341 
0342     err = ixgbe_disable_sriov(adapter);
0343 
0344     /* Only reinit if no error and state changed */
0345 #ifdef CONFIG_PCI_IOV
0346     if (!err && (current_flags != adapter->flags ||
0347              prev_num_vf != pci_num_vf(dev)))
0348         ixgbe_sriov_reinit(adapter);
0349 #endif
0350 
0351     return err;
0352 }
0353 
0354 int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
0355 {
0356     if (num_vfs == 0)
0357         return ixgbe_pci_sriov_disable(dev);
0358     else
0359         return ixgbe_pci_sriov_enable(dev, num_vfs);
0360 }
0361 
0362 static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
0363                    u32 *msgbuf, u32 vf)
0364 {
0365     int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
0366                >> IXGBE_VT_MSGINFO_SHIFT;
0367     u16 *hash_list = (u16 *)&msgbuf[1];
0368     struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
0369     struct ixgbe_hw *hw = &adapter->hw;
0370     int i;
0371     u32 vector_bit;
0372     u32 vector_reg;
0373     u32 mta_reg;
0374     u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
0375 
0376     /* only so many hash values supported */
0377     entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
0378 
0379     /*
0380      * salt away the number of multi cast addresses assigned
0381      * to this VF for later use to restore when the PF multi cast
0382      * list changes
0383      */
0384     vfinfo->num_vf_mc_hashes = entries;
0385 
0386     /*
0387      * VFs are limited to using the MTA hash table for their multicast
0388      * addresses
0389      */
0390     for (i = 0; i < entries; i++) {
0391         vfinfo->vf_mc_hashes[i] = hash_list[i];
0392     }
0393 
0394     for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
0395         vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
0396         vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
0397         mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
0398         mta_reg |= BIT(vector_bit);
0399         IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
0400     }
0401     vmolr |= IXGBE_VMOLR_ROMPE;
0402     IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
0403 
0404     return 0;
0405 }
0406 
0407 #ifdef CONFIG_PCI_IOV
0408 void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
0409 {
0410     struct ixgbe_hw *hw = &adapter->hw;
0411     struct vf_data_storage *vfinfo;
0412     int i, j;
0413     u32 vector_bit;
0414     u32 vector_reg;
0415     u32 mta_reg;
0416 
0417     for (i = 0; i < adapter->num_vfs; i++) {
0418         u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i));
0419         vfinfo = &adapter->vfinfo[i];
0420         for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
0421             hw->addr_ctrl.mta_in_use++;
0422             vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
0423             vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
0424             mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
0425             mta_reg |= BIT(vector_bit);
0426             IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
0427         }
0428 
0429         if (vfinfo->num_vf_mc_hashes)
0430             vmolr |= IXGBE_VMOLR_ROMPE;
0431         else
0432             vmolr &= ~IXGBE_VMOLR_ROMPE;
0433         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
0434     }
0435 
0436     /* Restore any VF macvlans */
0437     ixgbe_full_sync_mac_table(adapter);
0438 }
0439 #endif
0440 
0441 static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
0442                  u32 vf)
0443 {
0444     struct ixgbe_hw *hw = &adapter->hw;
0445     int err;
0446 
0447     /* If VLAN overlaps with one the PF is currently monitoring make
0448      * sure that we are able to allocate a VLVF entry.  This may be
0449      * redundant but it guarantees PF will maintain visibility to
0450      * the VLAN.
0451      */
0452     if (add && test_bit(vid, adapter->active_vlans)) {
0453         err = hw->mac.ops.set_vfta(hw, vid, VMDQ_P(0), true, false);
0454         if (err)
0455             return err;
0456     }
0457 
0458     err = hw->mac.ops.set_vfta(hw, vid, vf, !!add, false);
0459 
0460     if (add && !err)
0461         return err;
0462 
0463     /* If we failed to add the VF VLAN or we are removing the VF VLAN
0464      * we may need to drop the PF pool bit in order to allow us to free
0465      * up the VLVF resources.
0466      */
0467     if (test_bit(vid, adapter->active_vlans) ||
0468         (adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
0469         ixgbe_update_pf_promisc_vlvf(adapter, vid);
0470 
0471     return err;
0472 }
0473 
0474 static int ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 max_frame, u32 vf)
0475 {
0476     struct ixgbe_hw *hw = &adapter->hw;
0477     u32 max_frs;
0478 
0479     if (max_frame < ETH_MIN_MTU || max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) {
0480         e_err(drv, "VF max_frame %d out of range\n", max_frame);
0481         return -EINVAL;
0482     }
0483 
0484     /*
0485      * For 82599EB we have to keep all PFs and VFs operating with
0486      * the same max_frame value in order to avoid sending an oversize
0487      * frame to a VF.  In order to guarantee this is handled correctly
0488      * for all cases we have several special exceptions to take into
0489      * account before we can enable the VF for receive
0490      */
0491     if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
0492         struct net_device *dev = adapter->netdev;
0493         int pf_max_frame = dev->mtu + ETH_HLEN;
0494         u32 reg_offset, vf_shift, vfre;
0495         s32 err = 0;
0496 
0497 #ifdef CONFIG_FCOE
0498         if (dev->features & NETIF_F_FCOE_MTU)
0499             pf_max_frame = max_t(int, pf_max_frame,
0500                          IXGBE_FCOE_JUMBO_FRAME_SIZE);
0501 
0502 #endif /* CONFIG_FCOE */
0503         switch (adapter->vfinfo[vf].vf_api) {
0504         case ixgbe_mbox_api_11:
0505         case ixgbe_mbox_api_12:
0506         case ixgbe_mbox_api_13:
0507         case ixgbe_mbox_api_14:
0508             /* Version 1.1 supports jumbo frames on VFs if PF has
0509              * jumbo frames enabled which means legacy VFs are
0510              * disabled
0511              */
0512             if (pf_max_frame > ETH_FRAME_LEN)
0513                 break;
0514             fallthrough;
0515         default:
0516             /* If the PF or VF are running w/ jumbo frames enabled
0517              * we need to shut down the VF Rx path as we cannot
0518              * support jumbo frames on legacy VFs
0519              */
0520             if ((pf_max_frame > ETH_FRAME_LEN) ||
0521                 (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
0522                 err = -EINVAL;
0523             break;
0524         }
0525 
0526         /* determine VF receive enable location */
0527         vf_shift = vf % 32;
0528         reg_offset = vf / 32;
0529 
0530         /* enable or disable receive depending on error */
0531         vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
0532         if (err)
0533             vfre &= ~BIT(vf_shift);
0534         else
0535             vfre |= BIT(vf_shift);
0536         IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre);
0537 
0538         if (err) {
0539             e_err(drv, "VF max_frame %d out of range\n", max_frame);
0540             return err;
0541         }
0542     }
0543 
0544     /* pull current max frame size from hardware */
0545     max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
0546     max_frs &= IXGBE_MHADD_MFS_MASK;
0547     max_frs >>= IXGBE_MHADD_MFS_SHIFT;
0548 
0549     if (max_frs < max_frame) {
0550         max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT;
0551         IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
0552     }
0553 
0554     e_info(hw, "VF requests change max MTU to %d\n", max_frame);
0555 
0556     return 0;
0557 }
0558 
0559 static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
0560 {
0561     u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
0562     vmolr |= IXGBE_VMOLR_BAM;
0563     if (aupe)
0564         vmolr |= IXGBE_VMOLR_AUPE;
0565     else
0566         vmolr &= ~IXGBE_VMOLR_AUPE;
0567     IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
0568 }
0569 
0570 static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf)
0571 {
0572     struct ixgbe_hw *hw = &adapter->hw;
0573 
0574     IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
0575 }
0576 
0577 static void ixgbe_clear_vf_vlans(struct ixgbe_adapter *adapter, u32 vf)
0578 {
0579     struct ixgbe_hw *hw = &adapter->hw;
0580     u32 vlvfb_mask, pool_mask, i;
0581 
0582     /* create mask for VF and other pools */
0583     pool_mask = ~BIT(VMDQ_P(0) % 32);
0584     vlvfb_mask = BIT(vf % 32);
0585 
0586     /* post increment loop, covers VLVF_ENTRIES - 1 to 0 */
0587     for (i = IXGBE_VLVF_ENTRIES; i--;) {
0588         u32 bits[2], vlvfb, vid, vfta, vlvf;
0589         u32 word = i * 2 + vf / 32;
0590         u32 mask;
0591 
0592         vlvfb = IXGBE_READ_REG(hw, IXGBE_VLVFB(word));
0593 
0594         /* if our bit isn't set we can skip it */
0595         if (!(vlvfb & vlvfb_mask))
0596             continue;
0597 
0598         /* clear our bit from vlvfb */
0599         vlvfb ^= vlvfb_mask;
0600 
0601         /* create 64b mask to chedk to see if we should clear VLVF */
0602         bits[word % 2] = vlvfb;
0603         bits[~word % 2] = IXGBE_READ_REG(hw, IXGBE_VLVFB(word ^ 1));
0604 
0605         /* if other pools are present, just remove ourselves */
0606         if (bits[(VMDQ_P(0) / 32) ^ 1] ||
0607             (bits[VMDQ_P(0) / 32] & pool_mask))
0608             goto update_vlvfb;
0609 
0610         /* if PF is present, leave VFTA */
0611         if (bits[0] || bits[1])
0612             goto update_vlvf;
0613 
0614         /* if we cannot determine VLAN just remove ourselves */
0615         vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(i));
0616         if (!vlvf)
0617             goto update_vlvfb;
0618 
0619         vid = vlvf & VLAN_VID_MASK;
0620         mask = BIT(vid % 32);
0621 
0622         /* clear bit from VFTA */
0623         vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(vid / 32));
0624         if (vfta & mask)
0625             IXGBE_WRITE_REG(hw, IXGBE_VFTA(vid / 32), vfta ^ mask);
0626 update_vlvf:
0627         /* clear POOL selection enable */
0628         IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), 0);
0629 
0630         if (!(adapter->flags2 & IXGBE_FLAG2_VLAN_PROMISC))
0631             vlvfb = 0;
0632 update_vlvfb:
0633         /* clear pool bits */
0634         IXGBE_WRITE_REG(hw, IXGBE_VLVFB(word), vlvfb);
0635     }
0636 }
0637 
0638 static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
0639                 int vf, int index, unsigned char *mac_addr)
0640 {
0641     struct vf_macvlans *entry;
0642     struct list_head *pos;
0643     int retval = 0;
0644 
0645     if (index <= 1) {
0646         list_for_each(pos, &adapter->vf_mvs.l) {
0647             entry = list_entry(pos, struct vf_macvlans, l);
0648             if (entry->vf == vf) {
0649                 entry->vf = -1;
0650                 entry->free = true;
0651                 entry->is_macvlan = false;
0652                 ixgbe_del_mac_filter(adapter,
0653                              entry->vf_macvlan, vf);
0654             }
0655         }
0656     }
0657 
0658     /*
0659      * If index was zero then we were asked to clear the uc list
0660      * for the VF.  We're done.
0661      */
0662     if (!index)
0663         return 0;
0664 
0665     entry = NULL;
0666 
0667     list_for_each(pos, &adapter->vf_mvs.l) {
0668         entry = list_entry(pos, struct vf_macvlans, l);
0669         if (entry->free)
0670             break;
0671     }
0672 
0673     /*
0674      * If we traversed the entire list and didn't find a free entry
0675      * then we're out of space on the RAR table.  Also entry may
0676      * be NULL because the original memory allocation for the list
0677      * failed, which is not fatal but does mean we can't support
0678      * VF requests for MACVLAN because we couldn't allocate
0679      * memory for the list management required.
0680      */
0681     if (!entry || !entry->free)
0682         return -ENOSPC;
0683 
0684     retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
0685     if (retval < 0)
0686         return retval;
0687 
0688     entry->free = false;
0689     entry->is_macvlan = true;
0690     entry->vf = vf;
0691     memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
0692 
0693     return 0;
0694 }
0695 
0696 static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
0697 {
0698     struct ixgbe_hw *hw = &adapter->hw;
0699     struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
0700     struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
0701     u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
0702     u8 num_tcs = adapter->hw_tcs;
0703     u32 reg_val;
0704     u32 queue;
0705 
0706     /* remove VLAN filters beloning to this VF */
0707     ixgbe_clear_vf_vlans(adapter, vf);
0708 
0709     /* add back PF assigned VLAN or VLAN 0 */
0710     ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf);
0711 
0712     /* reset offloads to defaults */
0713     ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan);
0714 
0715     /* set outgoing tags for VFs */
0716     if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
0717         ixgbe_clear_vmvir(adapter, vf);
0718     } else {
0719         if (vfinfo->pf_qos || !num_tcs)
0720             ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
0721                     vfinfo->pf_qos, vf);
0722         else
0723             ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
0724                     adapter->default_up, vf);
0725 
0726         if (vfinfo->spoofchk_enabled) {
0727             hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
0728             hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
0729         }
0730     }
0731 
0732     /* reset multicast table array for vf */
0733     adapter->vfinfo[vf].num_vf_mc_hashes = 0;
0734 
0735     /* clear any ipsec table info */
0736     ixgbe_ipsec_vf_clear(adapter, vf);
0737 
0738     /* Flush and reset the mta with the new values */
0739     ixgbe_set_rx_mode(adapter->netdev);
0740 
0741     ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
0742     ixgbe_set_vf_macvlan(adapter, vf, 0, NULL);
0743 
0744     /* reset VF api back to unknown */
0745     adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10;
0746 
0747     /* Restart each queue for given VF */
0748     for (queue = 0; queue < q_per_pool; queue++) {
0749         unsigned int reg_idx = (vf * q_per_pool) + queue;
0750 
0751         reg_val = IXGBE_READ_REG(hw, IXGBE_PVFTXDCTL(reg_idx));
0752 
0753         /* Re-enabling only configured queues */
0754         if (reg_val) {
0755             reg_val |= IXGBE_TXDCTL_ENABLE;
0756             IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
0757             reg_val &= ~IXGBE_TXDCTL_ENABLE;
0758             IXGBE_WRITE_REG(hw, IXGBE_PVFTXDCTL(reg_idx), reg_val);
0759         }
0760     }
0761 
0762     IXGBE_WRITE_FLUSH(hw);
0763 }
0764 
0765 static void ixgbe_vf_clear_mbx(struct ixgbe_adapter *adapter, u32 vf)
0766 {
0767     struct ixgbe_hw *hw = &adapter->hw;
0768     u32 word;
0769 
0770     /* Clear VF's mailbox memory */
0771     for (word = 0; word < IXGBE_VFMAILBOX_SIZE; word++)
0772         IXGBE_WRITE_REG_ARRAY(hw, IXGBE_PFMBMEM(vf), word, 0);
0773 
0774     IXGBE_WRITE_FLUSH(hw);
0775 }
0776 
0777 static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
0778                 int vf, unsigned char *mac_addr)
0779 {
0780     s32 retval;
0781 
0782     ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf);
0783     retval = ixgbe_add_mac_filter(adapter, mac_addr, vf);
0784     if (retval >= 0)
0785         memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr,
0786                ETH_ALEN);
0787     else
0788         eth_zero_addr(adapter->vfinfo[vf].vf_mac_addresses);
0789 
0790     return retval;
0791 }
0792 
0793 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
0794 {
0795     struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
0796     unsigned int vfn = (event_mask & 0x3f);
0797 
0798     bool enable = ((event_mask & 0x10000000U) != 0);
0799 
0800     if (enable)
0801         eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
0802 
0803     return 0;
0804 }
0805 
0806 static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf,
0807                    u32 qde)
0808 {
0809     struct ixgbe_hw *hw = &adapter->hw;
0810     struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
0811     u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
0812     int i;
0813 
0814     for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) {
0815         u32 reg;
0816 
0817         /* flush previous write */
0818         IXGBE_WRITE_FLUSH(hw);
0819 
0820         /* indicate to hardware that we want to set drop enable */
0821         reg = IXGBE_QDE_WRITE | qde;
0822         reg |= i <<  IXGBE_QDE_IDX_SHIFT;
0823         IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
0824     }
0825 }
0826 
0827 /**
0828  * ixgbe_set_vf_rx_tx - Set VF rx tx
0829  * @adapter: Pointer to adapter struct
0830  * @vf: VF identifier
0831  *
0832  * Set or reset correct transmit and receive for vf
0833  **/
0834 static void ixgbe_set_vf_rx_tx(struct ixgbe_adapter *adapter, int vf)
0835 {
0836     u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
0837     struct ixgbe_hw *hw = &adapter->hw;
0838     u32 reg_offset, vf_shift;
0839 
0840     vf_shift = vf % 32;
0841     reg_offset = vf / 32;
0842 
0843     reg_cur_tx = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
0844     reg_cur_rx = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
0845 
0846     if (adapter->vfinfo[vf].link_enable) {
0847         reg_req_tx = reg_cur_tx | 1 << vf_shift;
0848         reg_req_rx = reg_cur_rx | 1 << vf_shift;
0849     } else {
0850         reg_req_tx = reg_cur_tx & ~(1 << vf_shift);
0851         reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
0852     }
0853 
0854     /* The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs.
0855      * For more info take a look at ixgbe_set_vf_lpe
0856      */
0857     if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
0858         struct net_device *dev = adapter->netdev;
0859         int pf_max_frame = dev->mtu + ETH_HLEN;
0860 
0861 #if IS_ENABLED(CONFIG_FCOE)
0862         if (dev->features & NETIF_F_FCOE_MTU)
0863             pf_max_frame = max_t(int, pf_max_frame,
0864                          IXGBE_FCOE_JUMBO_FRAME_SIZE);
0865 #endif /* CONFIG_FCOE */
0866 
0867         if (pf_max_frame > ETH_FRAME_LEN)
0868             reg_req_rx = reg_cur_rx & ~(1 << vf_shift);
0869     }
0870 
0871     /* Enable/Disable particular VF */
0872     if (reg_cur_tx != reg_req_tx)
0873         IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg_req_tx);
0874     if (reg_cur_rx != reg_req_rx)
0875         IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg_req_rx);
0876 }
0877 
0878 static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
0879 {
0880     struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
0881     struct ixgbe_hw *hw = &adapter->hw;
0882     unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
0883     u32 reg, reg_offset, vf_shift;
0884     u32 msgbuf[4] = {0, 0, 0, 0};
0885     u8 *addr = (u8 *)(&msgbuf[1]);
0886     u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
0887     int i;
0888 
0889     e_info(probe, "VF Reset msg received from vf %d\n", vf);
0890 
0891     /* reset the filters for the device */
0892     ixgbe_vf_reset_event(adapter, vf);
0893 
0894     ixgbe_vf_clear_mbx(adapter, vf);
0895 
0896     /* set vf mac address */
0897     if (!is_zero_ether_addr(vf_mac))
0898         ixgbe_set_vf_mac(adapter, vf, vf_mac);
0899 
0900     vf_shift = vf % 32;
0901     reg_offset = vf / 32;
0902 
0903     /* force drop enable for all VF Rx queues */
0904     reg = IXGBE_QDE_ENABLE;
0905     if (adapter->vfinfo[vf].pf_vlan)
0906         reg |= IXGBE_QDE_HIDE_VLAN;
0907 
0908     ixgbe_write_qde(adapter, vf, reg);
0909 
0910     ixgbe_set_vf_rx_tx(adapter, vf);
0911 
0912     /* enable VF mailbox for further messages */
0913     adapter->vfinfo[vf].clear_to_send = true;
0914 
0915     /* Enable counting of spoofed packets in the SSVPC register */
0916     reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
0917     reg |= BIT(vf_shift);
0918     IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
0919 
0920     /*
0921      * Reset the VFs TDWBAL and TDWBAH registers
0922      * which are not cleared by an FLR
0923      */
0924     for (i = 0; i < q_per_pool; i++) {
0925         IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0);
0926         IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0);
0927     }
0928 
0929     /* reply to reset with ack and vf mac address */
0930     msgbuf[0] = IXGBE_VF_RESET;
0931     if (!is_zero_ether_addr(vf_mac) && adapter->vfinfo[vf].pf_set_mac) {
0932         msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
0933         memcpy(addr, vf_mac, ETH_ALEN);
0934     } else {
0935         msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
0936     }
0937 
0938     /*
0939      * Piggyback the multicast filter type so VF can compute the
0940      * correct vectors
0941      */
0942     msgbuf[3] = hw->mac.mc_filter_type;
0943     ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
0944 
0945     return 0;
0946 }
0947 
0948 static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter,
0949                  u32 *msgbuf, u32 vf)
0950 {
0951     u8 *new_mac = ((u8 *)(&msgbuf[1]));
0952 
0953     if (!is_valid_ether_addr(new_mac)) {
0954         e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
0955         return -1;
0956     }
0957 
0958     if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
0959         !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) {
0960         e_warn(drv,
0961                "VF %d attempted to override administratively set MAC address\n"
0962                "Reload the VF driver to resume operations\n",
0963                vf);
0964         return -1;
0965     }
0966 
0967     return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0;
0968 }
0969 
0970 static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter,
0971                  u32 *msgbuf, u32 vf)
0972 {
0973     u32 add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT;
0974     u32 vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
0975     u8 tcs = adapter->hw_tcs;
0976 
0977     if (adapter->vfinfo[vf].pf_vlan || tcs) {
0978         e_warn(drv,
0979                "VF %d attempted to override administratively set VLAN configuration\n"
0980                "Reload the VF driver to resume operations\n",
0981                vf);
0982         return -1;
0983     }
0984 
0985     /* VLAN 0 is a special case, don't allow it to be removed */
0986     if (!vid && !add)
0987         return 0;
0988 
0989     return ixgbe_set_vf_vlan(adapter, add, vid, vf);
0990 }
0991 
0992 static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter,
0993                     u32 *msgbuf, u32 vf)
0994 {
0995     u8 *new_mac = ((u8 *)(&msgbuf[1]));
0996     int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
0997             IXGBE_VT_MSGINFO_SHIFT;
0998     int err;
0999 
1000     if (adapter->vfinfo[vf].pf_set_mac && !adapter->vfinfo[vf].trusted &&
1001         index > 0) {
1002         e_warn(drv,
1003                "VF %d requested MACVLAN filter but is administratively denied\n",
1004                vf);
1005         return -1;
1006     }
1007 
1008     /* An non-zero index indicates the VF is setting a filter */
1009     if (index) {
1010         if (!is_valid_ether_addr(new_mac)) {
1011             e_warn(drv, "VF %d attempted to set invalid mac\n", vf);
1012             return -1;
1013         }
1014 
1015         /*
1016          * If the VF is allowed to set MAC filters then turn off
1017          * anti-spoofing to avoid false positives.
1018          */
1019         if (adapter->vfinfo[vf].spoofchk_enabled) {
1020             struct ixgbe_hw *hw = &adapter->hw;
1021 
1022             hw->mac.ops.set_mac_anti_spoofing(hw, false, vf);
1023             hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
1024         }
1025     }
1026 
1027     err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac);
1028     if (err == -ENOSPC)
1029         e_warn(drv,
1030                "VF %d has requested a MACVLAN filter but there is no space for it\n",
1031                vf);
1032 
1033     return err < 0;
1034 }
1035 
1036 static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter,
1037                   u32 *msgbuf, u32 vf)
1038 {
1039     int api = msgbuf[1];
1040 
1041     switch (api) {
1042     case ixgbe_mbox_api_10:
1043     case ixgbe_mbox_api_11:
1044     case ixgbe_mbox_api_12:
1045     case ixgbe_mbox_api_13:
1046     case ixgbe_mbox_api_14:
1047         adapter->vfinfo[vf].vf_api = api;
1048         return 0;
1049     default:
1050         break;
1051     }
1052 
1053     e_info(drv, "VF %d requested invalid api version %u\n", vf, api);
1054 
1055     return -1;
1056 }
1057 
1058 static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter,
1059                    u32 *msgbuf, u32 vf)
1060 {
1061     struct net_device *dev = adapter->netdev;
1062     struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1063     unsigned int default_tc = 0;
1064     u8 num_tcs = adapter->hw_tcs;
1065 
1066     /* verify the PF is supporting the correct APIs */
1067     switch (adapter->vfinfo[vf].vf_api) {
1068     case ixgbe_mbox_api_20:
1069     case ixgbe_mbox_api_11:
1070     case ixgbe_mbox_api_12:
1071     case ixgbe_mbox_api_13:
1072     case ixgbe_mbox_api_14:
1073         break;
1074     default:
1075         return -1;
1076     }
1077 
1078     /* only allow 1 Tx queue for bandwidth limiting */
1079     msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1080     msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
1081 
1082     /* if TCs > 1 determine which TC belongs to default user priority */
1083     if (num_tcs > 1)
1084         default_tc = netdev_get_prio_tc_map(dev, adapter->default_up);
1085 
1086     /* notify VF of need for VLAN tag stripping, and correct queue */
1087     if (num_tcs)
1088         msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
1089     else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos)
1090         msgbuf[IXGBE_VF_TRANS_VLAN] = 1;
1091     else
1092         msgbuf[IXGBE_VF_TRANS_VLAN] = 0;
1093 
1094     /* notify VF of default queue */
1095     msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc;
1096 
1097     return 0;
1098 }
1099 
1100 static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf)
1101 {
1102     u32 i, j;
1103     u32 *out_buf = &msgbuf[1];
1104     const u8 *reta = adapter->rss_indir_tbl;
1105     u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter);
1106 
1107     /* Check if operation is permitted */
1108     if (!adapter->vfinfo[vf].rss_query_enabled)
1109         return -EPERM;
1110 
1111     /* verify the PF is supporting the correct API */
1112     switch (adapter->vfinfo[vf].vf_api) {
1113     case ixgbe_mbox_api_14:
1114     case ixgbe_mbox_api_13:
1115     case ixgbe_mbox_api_12:
1116         break;
1117     default:
1118         return -EOPNOTSUPP;
1119     }
1120 
1121     /* This mailbox command is supported (required) only for 82599 and x540
1122      * VFs which support up to 4 RSS queues. Therefore we will compress the
1123      * RETA by saving only 2 bits from each entry. This way we will be able
1124      * to transfer the whole RETA in a single mailbox operation.
1125      */
1126     for (i = 0; i < reta_size / 16; i++) {
1127         out_buf[i] = 0;
1128         for (j = 0; j < 16; j++)
1129             out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j);
1130     }
1131 
1132     return 0;
1133 }
1134 
1135 static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter,
1136                 u32 *msgbuf, u32 vf)
1137 {
1138     u32 *rss_key = &msgbuf[1];
1139 
1140     /* Check if the operation is permitted */
1141     if (!adapter->vfinfo[vf].rss_query_enabled)
1142         return -EPERM;
1143 
1144     /* verify the PF is supporting the correct API */
1145     switch (adapter->vfinfo[vf].vf_api) {
1146     case ixgbe_mbox_api_14:
1147     case ixgbe_mbox_api_13:
1148     case ixgbe_mbox_api_12:
1149         break;
1150     default:
1151         return -EOPNOTSUPP;
1152     }
1153 
1154     memcpy(rss_key, adapter->rss_key, IXGBE_RSS_KEY_SIZE);
1155 
1156     return 0;
1157 }
1158 
1159 static int ixgbe_update_vf_xcast_mode(struct ixgbe_adapter *adapter,
1160                       u32 *msgbuf, u32 vf)
1161 {
1162     struct ixgbe_hw *hw = &adapter->hw;
1163     int xcast_mode = msgbuf[1];
1164     u32 vmolr, fctrl, disable, enable;
1165 
1166     /* verify the PF is supporting the correct APIs */
1167     switch (adapter->vfinfo[vf].vf_api) {
1168     case ixgbe_mbox_api_12:
1169         /* promisc introduced in 1.3 version */
1170         if (xcast_mode == IXGBEVF_XCAST_MODE_PROMISC)
1171             return -EOPNOTSUPP;
1172         fallthrough;
1173     case ixgbe_mbox_api_13:
1174     case ixgbe_mbox_api_14:
1175         break;
1176     default:
1177         return -EOPNOTSUPP;
1178     }
1179 
1180     if (xcast_mode > IXGBEVF_XCAST_MODE_MULTI &&
1181         !adapter->vfinfo[vf].trusted) {
1182         xcast_mode = IXGBEVF_XCAST_MODE_MULTI;
1183     }
1184 
1185     if (adapter->vfinfo[vf].xcast_mode == xcast_mode)
1186         goto out;
1187 
1188     switch (xcast_mode) {
1189     case IXGBEVF_XCAST_MODE_NONE:
1190         disable = IXGBE_VMOLR_ROMPE |
1191               IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1192         enable = IXGBE_VMOLR_BAM;
1193         break;
1194     case IXGBEVF_XCAST_MODE_MULTI:
1195         disable = IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1196         enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE;
1197         break;
1198     case IXGBEVF_XCAST_MODE_ALLMULTI:
1199         disable = IXGBE_VMOLR_UPE | IXGBE_VMOLR_VPE;
1200         enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_MPE;
1201         break;
1202     case IXGBEVF_XCAST_MODE_PROMISC:
1203         if (hw->mac.type <= ixgbe_mac_82599EB)
1204             return -EOPNOTSUPP;
1205 
1206         fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
1207         if (!(fctrl & IXGBE_FCTRL_UPE)) {
1208             /* VF promisc requires PF in promisc */
1209             e_warn(drv,
1210                    "Enabling VF promisc requires PF in promisc\n");
1211             return -EPERM;
1212         }
1213 
1214         disable = IXGBE_VMOLR_VPE;
1215         enable = IXGBE_VMOLR_BAM | IXGBE_VMOLR_ROMPE |
1216              IXGBE_VMOLR_MPE | IXGBE_VMOLR_UPE;
1217         break;
1218     default:
1219         return -EOPNOTSUPP;
1220     }
1221 
1222     vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
1223     vmolr &= ~disable;
1224     vmolr |= enable;
1225     IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
1226 
1227     adapter->vfinfo[vf].xcast_mode = xcast_mode;
1228 
1229 out:
1230     msgbuf[1] = xcast_mode;
1231 
1232     return 0;
1233 }
1234 
1235 static int ixgbe_get_vf_link_state(struct ixgbe_adapter *adapter,
1236                    u32 *msgbuf, u32 vf)
1237 {
1238     u32 *link_state = &msgbuf[1];
1239 
1240     /* verify the PF is supporting the correct API */
1241     switch (adapter->vfinfo[vf].vf_api) {
1242     case ixgbe_mbox_api_12:
1243     case ixgbe_mbox_api_13:
1244     case ixgbe_mbox_api_14:
1245         break;
1246     default:
1247         return -EOPNOTSUPP;
1248     }
1249 
1250     *link_state = adapter->vfinfo[vf].link_enable;
1251 
1252     return 0;
1253 }
1254 
1255 static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1256 {
1257     u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
1258     u32 msgbuf[IXGBE_VFMAILBOX_SIZE];
1259     struct ixgbe_hw *hw = &adapter->hw;
1260     s32 retval;
1261 
1262     retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
1263 
1264     if (retval) {
1265         pr_err("Error receiving message from VF\n");
1266         return retval;
1267     }
1268 
1269     /* this is a message we already processed, do nothing */
1270     if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
1271         return 0;
1272 
1273     /* flush the ack before we write any messages back */
1274     IXGBE_WRITE_FLUSH(hw);
1275 
1276     if (msgbuf[0] == IXGBE_VF_RESET)
1277         return ixgbe_vf_reset_msg(adapter, vf);
1278 
1279     /*
1280      * until the vf completes a virtual function reset it should not be
1281      * allowed to start any configuration.
1282      */
1283     if (!adapter->vfinfo[vf].clear_to_send) {
1284         msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1285         ixgbe_write_mbx(hw, msgbuf, 1, vf);
1286         return 0;
1287     }
1288 
1289     switch ((msgbuf[0] & 0xFFFF)) {
1290     case IXGBE_VF_SET_MAC_ADDR:
1291         retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf);
1292         break;
1293     case IXGBE_VF_SET_MULTICAST:
1294         retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf);
1295         break;
1296     case IXGBE_VF_SET_VLAN:
1297         retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf);
1298         break;
1299     case IXGBE_VF_SET_LPE:
1300         retval = ixgbe_set_vf_lpe(adapter, msgbuf[1], vf);
1301         break;
1302     case IXGBE_VF_SET_MACVLAN:
1303         retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf);
1304         break;
1305     case IXGBE_VF_API_NEGOTIATE:
1306         retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf);
1307         break;
1308     case IXGBE_VF_GET_QUEUES:
1309         retval = ixgbe_get_vf_queues(adapter, msgbuf, vf);
1310         break;
1311     case IXGBE_VF_GET_RETA:
1312         retval = ixgbe_get_vf_reta(adapter, msgbuf, vf);
1313         break;
1314     case IXGBE_VF_GET_RSS_KEY:
1315         retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf);
1316         break;
1317     case IXGBE_VF_UPDATE_XCAST_MODE:
1318         retval = ixgbe_update_vf_xcast_mode(adapter, msgbuf, vf);
1319         break;
1320     case IXGBE_VF_GET_LINK_STATE:
1321         retval = ixgbe_get_vf_link_state(adapter, msgbuf, vf);
1322         break;
1323     case IXGBE_VF_IPSEC_ADD:
1324         retval = ixgbe_ipsec_vf_add_sa(adapter, msgbuf, vf);
1325         break;
1326     case IXGBE_VF_IPSEC_DEL:
1327         retval = ixgbe_ipsec_vf_del_sa(adapter, msgbuf, vf);
1328         break;
1329     default:
1330         e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
1331         retval = IXGBE_ERR_MBX;
1332         break;
1333     }
1334 
1335     /* notify the VF of the results of what it sent us */
1336     if (retval)
1337         msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
1338     else
1339         msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
1340 
1341     msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
1342 
1343     ixgbe_write_mbx(hw, msgbuf, mbx_size, vf);
1344 
1345     return retval;
1346 }
1347 
1348 static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
1349 {
1350     struct ixgbe_hw *hw = &adapter->hw;
1351     u32 msg = IXGBE_VT_MSGTYPE_NACK;
1352 
1353     /* if device isn't clear to send it shouldn't be reading either */
1354     if (!adapter->vfinfo[vf].clear_to_send)
1355         ixgbe_write_mbx(hw, &msg, 1, vf);
1356 }
1357 
1358 void ixgbe_msg_task(struct ixgbe_adapter *adapter)
1359 {
1360     struct ixgbe_hw *hw = &adapter->hw;
1361     unsigned long flags;
1362     u32 vf;
1363 
1364     spin_lock_irqsave(&adapter->vfs_lock, flags);
1365     for (vf = 0; vf < adapter->num_vfs; vf++) {
1366         /* process any reset requests */
1367         if (!ixgbe_check_for_rst(hw, vf))
1368             ixgbe_vf_reset_event(adapter, vf);
1369 
1370         /* process any messages pending */
1371         if (!ixgbe_check_for_msg(hw, vf))
1372             ixgbe_rcv_msg_from_vf(adapter, vf);
1373 
1374         /* process any acks */
1375         if (!ixgbe_check_for_ack(hw, vf))
1376             ixgbe_rcv_ack_from_vf(adapter, vf);
1377     }
1378     spin_unlock_irqrestore(&adapter->vfs_lock, flags);
1379 }
1380 
1381 static inline void ixgbe_ping_vf(struct ixgbe_adapter *adapter, int vf)
1382 {
1383     struct ixgbe_hw *hw = &adapter->hw;
1384     u32 ping;
1385 
1386     ping = IXGBE_PF_CONTROL_MSG;
1387     if (adapter->vfinfo[vf].clear_to_send)
1388         ping |= IXGBE_VT_MSGTYPE_CTS;
1389     ixgbe_write_mbx(hw, &ping, 1, vf);
1390 }
1391 
1392 void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
1393 {
1394     struct ixgbe_hw *hw = &adapter->hw;
1395     u32 ping;
1396     int i;
1397 
1398     for (i = 0 ; i < adapter->num_vfs; i++) {
1399         ping = IXGBE_PF_CONTROL_MSG;
1400         if (adapter->vfinfo[i].clear_to_send)
1401             ping |= IXGBE_VT_MSGTYPE_CTS;
1402         ixgbe_write_mbx(hw, &ping, 1, i);
1403     }
1404 }
1405 
1406 /**
1407  * ixgbe_set_all_vfs - update vfs queues
1408  * @adapter: Pointer to adapter struct
1409  *
1410  * Update setting transmit and receive queues for all vfs
1411  **/
1412 void ixgbe_set_all_vfs(struct ixgbe_adapter *adapter)
1413 {
1414     int i;
1415 
1416     for (i = 0 ; i < adapter->num_vfs; i++)
1417         ixgbe_set_vf_link_state(adapter, i,
1418                     adapter->vfinfo[i].link_state);
1419 }
1420 
1421 int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1422 {
1423     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1424     s32 retval;
1425 
1426     if (vf >= adapter->num_vfs)
1427         return -EINVAL;
1428 
1429     if (is_valid_ether_addr(mac)) {
1430         dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
1431              mac, vf);
1432         dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
1433 
1434         retval = ixgbe_set_vf_mac(adapter, vf, mac);
1435         if (retval >= 0) {
1436             adapter->vfinfo[vf].pf_set_mac = true;
1437 
1438             if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1439                 dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
1440                 dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
1441             }
1442         } else {
1443             dev_warn(&adapter->pdev->dev, "The VF MAC address was NOT set due to invalid or duplicate MAC address.\n");
1444         }
1445     } else if (is_zero_ether_addr(mac)) {
1446         unsigned char *vf_mac_addr =
1447                        adapter->vfinfo[vf].vf_mac_addresses;
1448 
1449         /* nothing to do */
1450         if (is_zero_ether_addr(vf_mac_addr))
1451             return 0;
1452 
1453         dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
1454 
1455         retval = ixgbe_del_mac_filter(adapter, vf_mac_addr, vf);
1456         if (retval >= 0) {
1457             adapter->vfinfo[vf].pf_set_mac = false;
1458             memcpy(vf_mac_addr, mac, ETH_ALEN);
1459         } else {
1460             dev_warn(&adapter->pdev->dev, "Could NOT remove the VF MAC address.\n");
1461         }
1462     } else {
1463         retval = -EINVAL;
1464     }
1465 
1466     return retval;
1467 }
1468 
1469 static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf,
1470                   u16 vlan, u8 qos)
1471 {
1472     struct ixgbe_hw *hw = &adapter->hw;
1473     int err;
1474 
1475     err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
1476     if (err)
1477         goto out;
1478 
1479     /* Revoke tagless access via VLAN 0 */
1480     ixgbe_set_vf_vlan(adapter, false, 0, vf);
1481 
1482     ixgbe_set_vmvir(adapter, vlan, qos, vf);
1483     ixgbe_set_vmolr(hw, vf, false);
1484 
1485     /* enable hide vlan on X550 */
1486     if (hw->mac.type >= ixgbe_mac_X550)
1487         ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE |
1488                 IXGBE_QDE_HIDE_VLAN);
1489 
1490     adapter->vfinfo[vf].pf_vlan = vlan;
1491     adapter->vfinfo[vf].pf_qos = qos;
1492     dev_info(&adapter->pdev->dev,
1493          "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
1494     if (test_bit(__IXGBE_DOWN, &adapter->state)) {
1495         dev_warn(&adapter->pdev->dev,
1496              "The VF VLAN has been set, but the PF device is not up.\n");
1497         dev_warn(&adapter->pdev->dev,
1498              "Bring the PF device up before attempting to use the VF device.\n");
1499     }
1500 
1501 out:
1502     return err;
1503 }
1504 
1505 static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf)
1506 {
1507     struct ixgbe_hw *hw = &adapter->hw;
1508     int err;
1509 
1510     err = ixgbe_set_vf_vlan(adapter, false,
1511                 adapter->vfinfo[vf].pf_vlan, vf);
1512     /* Restore tagless access via VLAN 0 */
1513     ixgbe_set_vf_vlan(adapter, true, 0, vf);
1514     ixgbe_clear_vmvir(adapter, vf);
1515     ixgbe_set_vmolr(hw, vf, true);
1516 
1517     /* disable hide VLAN on X550 */
1518     if (hw->mac.type >= ixgbe_mac_X550)
1519         ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE);
1520 
1521     adapter->vfinfo[vf].pf_vlan = 0;
1522     adapter->vfinfo[vf].pf_qos = 0;
1523 
1524     return err;
1525 }
1526 
1527 int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1528               u8 qos, __be16 vlan_proto)
1529 {
1530     int err = 0;
1531     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1532 
1533     if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
1534         return -EINVAL;
1535     if (vlan_proto != htons(ETH_P_8021Q))
1536         return -EPROTONOSUPPORT;
1537     if (vlan || qos) {
1538         /* Check if there is already a port VLAN set, if so
1539          * we have to delete the old one first before we
1540          * can set the new one.  The usage model had
1541          * previously assumed the user would delete the
1542          * old port VLAN before setting a new one but this
1543          * is not necessarily the case.
1544          */
1545         if (adapter->vfinfo[vf].pf_vlan)
1546             err = ixgbe_disable_port_vlan(adapter, vf);
1547         if (err)
1548             goto out;
1549         err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos);
1550     } else {
1551         err = ixgbe_disable_port_vlan(adapter, vf);
1552     }
1553 
1554 out:
1555     return err;
1556 }
1557 
1558 int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
1559 {
1560     switch (adapter->link_speed) {
1561     case IXGBE_LINK_SPEED_100_FULL:
1562         return 100;
1563     case IXGBE_LINK_SPEED_1GB_FULL:
1564         return 1000;
1565     case IXGBE_LINK_SPEED_10GB_FULL:
1566         return 10000;
1567     default:
1568         return 0;
1569     }
1570 }
1571 
1572 static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
1573 {
1574     struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
1575     struct ixgbe_hw *hw = &adapter->hw;
1576     u32 bcnrc_val = 0;
1577     u16 queue, queues_per_pool;
1578     u16 tx_rate = adapter->vfinfo[vf].tx_rate;
1579 
1580     if (tx_rate) {
1581         /* start with base link speed value */
1582         bcnrc_val = adapter->vf_rate_link_speed;
1583 
1584         /* Calculate the rate factor values to set */
1585         bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
1586         bcnrc_val /= tx_rate;
1587 
1588         /* clear everything but the rate factor */
1589         bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
1590                  IXGBE_RTTBCNRC_RF_DEC_MASK;
1591 
1592         /* enable the rate scheduler */
1593         bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
1594     }
1595 
1596     /*
1597      * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
1598      * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
1599      * and 0x004 otherwise.
1600      */
1601     switch (hw->mac.type) {
1602     case ixgbe_mac_82599EB:
1603         IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4);
1604         break;
1605     case ixgbe_mac_X540:
1606         IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14);
1607         break;
1608     default:
1609         break;
1610     }
1611 
1612     /* determine how many queues per pool based on VMDq mask */
1613     queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
1614 
1615     /* write value for all Tx queues belonging to VF */
1616     for (queue = 0; queue < queues_per_pool; queue++) {
1617         unsigned int reg_idx = (vf * queues_per_pool) + queue;
1618 
1619         IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
1620         IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
1621     }
1622 }
1623 
1624 void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
1625 {
1626     int i;
1627 
1628     /* VF Tx rate limit was not set */
1629     if (!adapter->vf_rate_link_speed)
1630         return;
1631 
1632     if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
1633         adapter->vf_rate_link_speed = 0;
1634         dev_info(&adapter->pdev->dev,
1635              "Link speed has been changed. VF Transmit rate is disabled\n");
1636     }
1637 
1638     for (i = 0; i < adapter->num_vfs; i++) {
1639         if (!adapter->vf_rate_link_speed)
1640             adapter->vfinfo[i].tx_rate = 0;
1641 
1642         ixgbe_set_vf_rate_limit(adapter, i);
1643     }
1644 }
1645 
1646 int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate,
1647             int max_tx_rate)
1648 {
1649     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1650     int link_speed;
1651 
1652     /* verify VF is active */
1653     if (vf >= adapter->num_vfs)
1654         return -EINVAL;
1655 
1656     /* verify link is up */
1657     if (!adapter->link_up)
1658         return -EINVAL;
1659 
1660     /* verify we are linked at 10Gbps */
1661     link_speed = ixgbe_link_mbps(adapter);
1662     if (link_speed != 10000)
1663         return -EINVAL;
1664 
1665     if (min_tx_rate)
1666         return -EINVAL;
1667 
1668     /* rate limit cannot be less than 10Mbs or greater than link speed */
1669     if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed)))
1670         return -EINVAL;
1671 
1672     /* store values */
1673     adapter->vf_rate_link_speed = link_speed;
1674     adapter->vfinfo[vf].tx_rate = max_tx_rate;
1675 
1676     /* update hardware configuration */
1677     ixgbe_set_vf_rate_limit(adapter, vf);
1678 
1679     return 0;
1680 }
1681 
1682 int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
1683 {
1684     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1685     struct ixgbe_hw *hw = &adapter->hw;
1686 
1687     if (vf >= adapter->num_vfs)
1688         return -EINVAL;
1689 
1690     adapter->vfinfo[vf].spoofchk_enabled = setting;
1691 
1692     /* configure MAC spoofing */
1693     hw->mac.ops.set_mac_anti_spoofing(hw, setting, vf);
1694 
1695     /* configure VLAN spoofing */
1696     hw->mac.ops.set_vlan_anti_spoofing(hw, setting, vf);
1697 
1698     /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
1699      * calling set_ethertype_anti_spoofing for each VF in loop below
1700      */
1701     if (hw->mac.ops.set_ethertype_anti_spoofing) {
1702         IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP),
1703                 (IXGBE_ETQF_FILTER_EN    |
1704                  IXGBE_ETQF_TX_ANTISPOOF |
1705                  ETH_P_LLDP));
1706 
1707         IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC),
1708                 (IXGBE_ETQF_FILTER_EN |
1709                  IXGBE_ETQF_TX_ANTISPOOF |
1710                  ETH_P_PAUSE));
1711 
1712         hw->mac.ops.set_ethertype_anti_spoofing(hw, setting, vf);
1713     }
1714 
1715     return 0;
1716 }
1717 
1718 /**
1719  * ixgbe_set_vf_link_state - Set link state
1720  * @adapter: Pointer to adapter struct
1721  * @vf: VF identifier
1722  * @state: required link state
1723  *
1724  * Set a link force state on/off a single vf
1725  **/
1726 void ixgbe_set_vf_link_state(struct ixgbe_adapter *adapter, int vf, int state)
1727 {
1728     adapter->vfinfo[vf].link_state = state;
1729 
1730     switch (state) {
1731     case IFLA_VF_LINK_STATE_AUTO:
1732         if (test_bit(__IXGBE_DOWN, &adapter->state))
1733             adapter->vfinfo[vf].link_enable = false;
1734         else
1735             adapter->vfinfo[vf].link_enable = true;
1736         break;
1737     case IFLA_VF_LINK_STATE_ENABLE:
1738         adapter->vfinfo[vf].link_enable = true;
1739         break;
1740     case IFLA_VF_LINK_STATE_DISABLE:
1741         adapter->vfinfo[vf].link_enable = false;
1742         break;
1743     }
1744 
1745     ixgbe_set_vf_rx_tx(adapter, vf);
1746 
1747     /* restart the VF */
1748     adapter->vfinfo[vf].clear_to_send = false;
1749     ixgbe_ping_vf(adapter, vf);
1750 }
1751 
1752 /**
1753  * ixgbe_ndo_set_vf_link_state - Set link state
1754  * @netdev: network interface device structure
1755  * @vf: VF identifier
1756  * @state: required link state
1757  *
1758  * Set the link state of a specified VF, regardless of physical link state
1759  **/
1760 int ixgbe_ndo_set_vf_link_state(struct net_device *netdev, int vf, int state)
1761 {
1762     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1763     int ret = 0;
1764 
1765     if (vf < 0 || vf >= adapter->num_vfs) {
1766         dev_err(&adapter->pdev->dev,
1767             "NDO set VF link - invalid VF identifier %d\n", vf);
1768         return -EINVAL;
1769     }
1770 
1771     switch (state) {
1772     case IFLA_VF_LINK_STATE_ENABLE:
1773         dev_info(&adapter->pdev->dev,
1774              "NDO set VF %d link state %d - not supported\n",
1775             vf, state);
1776         break;
1777     case IFLA_VF_LINK_STATE_DISABLE:
1778         dev_info(&adapter->pdev->dev,
1779              "NDO set VF %d link state disable\n", vf);
1780         ixgbe_set_vf_link_state(adapter, vf, state);
1781         break;
1782     case IFLA_VF_LINK_STATE_AUTO:
1783         dev_info(&adapter->pdev->dev,
1784              "NDO set VF %d link state auto\n", vf);
1785         ixgbe_set_vf_link_state(adapter, vf, state);
1786         break;
1787     default:
1788         dev_err(&adapter->pdev->dev,
1789             "NDO set VF %d - invalid link state %d\n", vf, state);
1790         ret = -EINVAL;
1791     }
1792 
1793     return ret;
1794 }
1795 
1796 int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf,
1797                   bool setting)
1798 {
1799     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1800 
1801     /* This operation is currently supported only for 82599 and x540
1802      * devices.
1803      */
1804     if (adapter->hw.mac.type < ixgbe_mac_82599EB ||
1805         adapter->hw.mac.type >= ixgbe_mac_X550)
1806         return -EOPNOTSUPP;
1807 
1808     if (vf >= adapter->num_vfs)
1809         return -EINVAL;
1810 
1811     adapter->vfinfo[vf].rss_query_enabled = setting;
1812 
1813     return 0;
1814 }
1815 
1816 int ixgbe_ndo_set_vf_trust(struct net_device *netdev, int vf, bool setting)
1817 {
1818     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1819 
1820     if (vf >= adapter->num_vfs)
1821         return -EINVAL;
1822 
1823     /* nothing to do */
1824     if (adapter->vfinfo[vf].trusted == setting)
1825         return 0;
1826 
1827     adapter->vfinfo[vf].trusted = setting;
1828 
1829     /* reset VF to reconfigure features */
1830     adapter->vfinfo[vf].clear_to_send = false;
1831     ixgbe_ping_vf(adapter, vf);
1832 
1833     e_info(drv, "VF %u is %strusted\n", vf, setting ? "" : "not ");
1834 
1835     return 0;
1836 }
1837 
1838 int ixgbe_ndo_get_vf_config(struct net_device *netdev,
1839                 int vf, struct ifla_vf_info *ivi)
1840 {
1841     struct ixgbe_adapter *adapter = netdev_priv(netdev);
1842     if (vf >= adapter->num_vfs)
1843         return -EINVAL;
1844     ivi->vf = vf;
1845     memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
1846     ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate;
1847     ivi->min_tx_rate = 0;
1848     ivi->vlan = adapter->vfinfo[vf].pf_vlan;
1849     ivi->qos = adapter->vfinfo[vf].pf_qos;
1850     ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled;
1851     ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled;
1852     ivi->trusted = adapter->vfinfo[vf].trusted;
1853     return 0;
1854 }
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