From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 1434 ++++++++++++++++++++++++ 1 file changed, 1434 insertions(+) create mode 100644 drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c') diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c new file mode 100644 index 000000000..1d17b5872 --- /dev/null +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -0,0 +1,1434 @@ +/******************************************************************************* + + Intel 10 Gigabit PCI Express Linux driver + Copyright(c) 1999 - 2014 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + + Contact Information: + Linux NICS + e1000-devel Mailing List + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef NETIF_F_HW_VLAN_CTAG_TX +#include +#endif + +#include "ixgbe.h" +#include "ixgbe_type.h" +#include "ixgbe_sriov.h" + +#ifdef CONFIG_PCI_IOV +static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + int num_vf_macvlans, i; + struct vf_macvlans *mv_list; + + adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; + e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs); + + /* Enable VMDq flag so device will be set in VM mode */ + adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED; + if (!adapter->ring_feature[RING_F_VMDQ].limit) + adapter->ring_feature[RING_F_VMDQ].limit = 1; + adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs; + + num_vf_macvlans = hw->mac.num_rar_entries - + (IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs); + + adapter->mv_list = mv_list = kcalloc(num_vf_macvlans, + sizeof(struct vf_macvlans), + GFP_KERNEL); + if (mv_list) { + /* Initialize list of VF macvlans */ + INIT_LIST_HEAD(&adapter->vf_mvs.l); + for (i = 0; i < num_vf_macvlans; i++) { + mv_list->vf = -1; + mv_list->free = true; + list_add(&mv_list->l, &adapter->vf_mvs.l); + mv_list++; + } + } + + /* Initialize default switching mode VEB */ + IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); + adapter->bridge_mode = BRIDGE_MODE_VEB; + + /* If call to enable VFs succeeded then allocate memory + * for per VF control structures. + */ + adapter->vfinfo = + kcalloc(adapter->num_vfs, + sizeof(struct vf_data_storage), GFP_KERNEL); + if (adapter->vfinfo) { + /* limit trafffic classes based on VFs enabled */ + if ((adapter->hw.mac.type == ixgbe_mac_82599EB) && + (adapter->num_vfs < 16)) { + adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; + adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; + } else if (adapter->num_vfs < 32) { + adapter->dcb_cfg.num_tcs.pg_tcs = 4; + adapter->dcb_cfg.num_tcs.pfc_tcs = 4; + } else { + adapter->dcb_cfg.num_tcs.pg_tcs = 1; + adapter->dcb_cfg.num_tcs.pfc_tcs = 1; + } + + /* Disable RSC when in SR-IOV mode */ + adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | + IXGBE_FLAG2_RSC_ENABLED); + + for (i = 0; i < adapter->num_vfs; i++) { + /* enable spoof checking for all VFs */ + adapter->vfinfo[i].spoofchk_enabled = true; + + /* We support VF RSS querying only for 82599 and x540 + * devices at the moment. These devices share RSS + * indirection table and RSS hash key with PF therefore + * we want to disable the querying by default. + */ + adapter->vfinfo[i].rss_query_enabled = 0; + } + + return 0; + } + + return -ENOMEM; +} + +/* Note this function is called when the user wants to enable SR-IOV + * VFs using the now deprecated module parameter + */ +void ixgbe_enable_sriov(struct ixgbe_adapter *adapter) +{ + int pre_existing_vfs = 0; + + pre_existing_vfs = pci_num_vf(adapter->pdev); + if (!pre_existing_vfs && !adapter->num_vfs) + return; + + /* If there are pre-existing VFs then we have to force + * use of that many - over ride any module parameter value. + * This may result from the user unloading the PF driver + * while VFs were assigned to guest VMs or because the VFs + * have been created via the new PCI SR-IOV sysfs interface. + */ + if (pre_existing_vfs) { + adapter->num_vfs = pre_existing_vfs; + dev_warn(&adapter->pdev->dev, + "Virtual Functions already enabled for this device - Please reload all VF drivers to avoid spoofed packet errors\n"); + } else { + int err; + /* + * The 82599 supports up to 64 VFs per physical function + * but this implementation limits allocation to 63 so that + * basic networking resources are still available to the + * physical function. If the user requests greater than + * 63 VFs then it is an error - reset to default of zero. + */ + adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, IXGBE_MAX_VFS_DRV_LIMIT); + + err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); + if (err) { + e_err(probe, "Failed to enable PCI sriov: %d\n", err); + adapter->num_vfs = 0; + return; + } + } + + if (!__ixgbe_enable_sriov(adapter)) + return; + + /* If we have gotten to this point then there is no memory available + * to manage the VF devices - print message and bail. + */ + e_err(probe, "Unable to allocate memory for VF Data Storage - " + "SRIOV disabled\n"); + ixgbe_disable_sriov(adapter); +} + +#endif /* #ifdef CONFIG_PCI_IOV */ +int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + u32 gpie; + u32 vmdctl; + int rss; + + /* set num VFs to 0 to prevent access to vfinfo */ + adapter->num_vfs = 0; + + /* free VF control structures */ + kfree(adapter->vfinfo); + adapter->vfinfo = NULL; + + /* free macvlan list */ + kfree(adapter->mv_list); + adapter->mv_list = NULL; + + /* if SR-IOV is already disabled then there is nothing to do */ + if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) + return 0; + +#ifdef CONFIG_PCI_IOV + /* + * If our VFs are assigned we cannot shut down SR-IOV + * without causing issues, so just leave the hardware + * available but disabled + */ + if (pci_vfs_assigned(adapter->pdev)) { + e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); + return -EPERM; + } + /* disable iov and allow time for transactions to clear */ + pci_disable_sriov(adapter->pdev); +#endif + + /* turn off device IOV mode */ + IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, 0); + gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); + gpie &= ~IXGBE_GPIE_VTMODE_MASK; + IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); + + /* set default pool back to 0 */ + vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); + vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; + IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); + IXGBE_WRITE_FLUSH(hw); + + /* Disable VMDq flag so device will be set in VM mode */ + if (adapter->ring_feature[RING_F_VMDQ].limit == 1) { + adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED; + adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; + rss = min_t(int, ixgbe_max_rss_indices(adapter), + num_online_cpus()); + } else { + rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus()); + } + + adapter->ring_feature[RING_F_VMDQ].offset = 0; + adapter->ring_feature[RING_F_RSS].limit = rss; + + /* take a breather then clean up driver data */ + msleep(100); + return 0; +} + +static int ixgbe_pci_sriov_enable(struct pci_dev *dev, int num_vfs) +{ +#ifdef CONFIG_PCI_IOV + struct ixgbe_adapter *adapter = pci_get_drvdata(dev); + int err = 0; + int i; + int pre_existing_vfs = pci_num_vf(dev); + + if (pre_existing_vfs && pre_existing_vfs != num_vfs) + err = ixgbe_disable_sriov(adapter); + else if (pre_existing_vfs && pre_existing_vfs == num_vfs) + return num_vfs; + + if (err) + return err; + + /* While the SR-IOV capability structure reports total VFs to be 64, + * we have to limit the actual number allocated based on two factors. + * First, we reserve some transmit/receive resources for the PF. + * Second, VMDQ also uses the same pools that SR-IOV does. We need to + * account for this, so that we don't accidentally allocate more VFs + * than we have available pools. The PCI bus driver already checks for + * other values out of range. + */ + if ((num_vfs + adapter->num_rx_pools) > IXGBE_MAX_VF_FUNCTIONS) + return -EPERM; + + adapter->num_vfs = num_vfs; + + err = __ixgbe_enable_sriov(adapter); + if (err) + return err; + + for (i = 0; i < adapter->num_vfs; i++) + ixgbe_vf_configuration(dev, (i | 0x10000000)); + + err = pci_enable_sriov(dev, num_vfs); + if (err) { + e_dev_warn("Failed to enable PCI sriov: %d\n", err); + return err; + } + ixgbe_sriov_reinit(adapter); + + return num_vfs; +#else + return 0; +#endif +} + +static int ixgbe_pci_sriov_disable(struct pci_dev *dev) +{ + struct ixgbe_adapter *adapter = pci_get_drvdata(dev); + int err; +#ifdef CONFIG_PCI_IOV + u32 current_flags = adapter->flags; +#endif + + err = ixgbe_disable_sriov(adapter); + + /* Only reinit if no error and state changed */ +#ifdef CONFIG_PCI_IOV + if (!err && current_flags != adapter->flags) + ixgbe_sriov_reinit(adapter); +#endif + + return err; +} + +int ixgbe_pci_sriov_configure(struct pci_dev *dev, int num_vfs) +{ + if (num_vfs == 0) + return ixgbe_pci_sriov_disable(dev); + else + return ixgbe_pci_sriov_enable(dev, num_vfs); +} + +static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + int entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) + >> IXGBE_VT_MSGINFO_SHIFT; + u16 *hash_list = (u16 *)&msgbuf[1]; + struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; + struct ixgbe_hw *hw = &adapter->hw; + int i; + u32 vector_bit; + u32 vector_reg; + u32 mta_reg; + u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); + + /* only so many hash values supported */ + entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES); + + /* + * salt away the number of multi cast addresses assigned + * to this VF for later use to restore when the PF multi cast + * list changes + */ + vfinfo->num_vf_mc_hashes = entries; + + /* + * VFs are limited to using the MTA hash table for their multicast + * addresses + */ + for (i = 0; i < entries; i++) { + vfinfo->vf_mc_hashes[i] = hash_list[i]; + } + + for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) { + vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F; + vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F; + mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); + mta_reg |= (1 << vector_bit); + IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); + } + vmolr |= IXGBE_VMOLR_ROMPE; + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); + + return 0; +} + +#ifdef CONFIG_PCI_IOV +void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + struct vf_data_storage *vfinfo; + int i, j; + u32 vector_bit; + u32 vector_reg; + u32 mta_reg; + + for (i = 0; i < adapter->num_vfs; i++) { + u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(i)); + vfinfo = &adapter->vfinfo[i]; + for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) { + hw->addr_ctrl.mta_in_use++; + vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F; + vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F; + mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg)); + mta_reg |= (1 << vector_bit); + IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg); + } + + if (vfinfo->num_vf_mc_hashes) + vmolr |= IXGBE_VMOLR_ROMPE; + else + vmolr &= ~IXGBE_VMOLR_ROMPE; + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr); + } + + /* Restore any VF macvlans */ + ixgbe_full_sync_mac_table(adapter); +} +#endif + +static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, + u32 vf) +{ + /* VLAN 0 is a special case, don't allow it to be removed */ + if (!vid && !add) + return 0; + + return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); +} + +static s32 ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + int max_frame = msgbuf[1]; + u32 max_frs; + + /* + * For 82599EB we have to keep all PFs and VFs operating with + * the same max_frame value in order to avoid sending an oversize + * frame to a VF. In order to guarantee this is handled correctly + * for all cases we have several special exceptions to take into + * account before we can enable the VF for receive + */ + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + struct net_device *dev = adapter->netdev; + int pf_max_frame = dev->mtu + ETH_HLEN; + u32 reg_offset, vf_shift, vfre; + s32 err = 0; + +#ifdef CONFIG_FCOE + if (dev->features & NETIF_F_FCOE_MTU) + pf_max_frame = max_t(int, pf_max_frame, + IXGBE_FCOE_JUMBO_FRAME_SIZE); + +#endif /* CONFIG_FCOE */ + switch (adapter->vfinfo[vf].vf_api) { + case ixgbe_mbox_api_11: + case ixgbe_mbox_api_12: + /* + * Version 1.1 supports jumbo frames on VFs if PF has + * jumbo frames enabled which means legacy VFs are + * disabled + */ + if (pf_max_frame > ETH_FRAME_LEN) + break; + default: + /* + * If the PF or VF are running w/ jumbo frames enabled + * we need to shut down the VF Rx path as we cannot + * support jumbo frames on legacy VFs + */ + if ((pf_max_frame > ETH_FRAME_LEN) || + (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) + err = -EINVAL; + break; + } + + /* determine VF receive enable location */ + vf_shift = vf % 32; + reg_offset = vf / 32; + + /* enable or disable receive depending on error */ + vfre = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); + if (err) + vfre &= ~(1 << vf_shift); + else + vfre |= 1 << vf_shift; + IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), vfre); + + if (err) { + e_err(drv, "VF max_frame %d out of range\n", max_frame); + return err; + } + } + + /* MTU < 68 is an error and causes problems on some kernels */ + if (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE) { + e_err(drv, "VF max_frame %d out of range\n", max_frame); + return -EINVAL; + } + + /* pull current max frame size from hardware */ + max_frs = IXGBE_READ_REG(hw, IXGBE_MAXFRS); + max_frs &= IXGBE_MHADD_MFS_MASK; + max_frs >>= IXGBE_MHADD_MFS_SHIFT; + + if (max_frs < max_frame) { + max_frs = max_frame << IXGBE_MHADD_MFS_SHIFT; + IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); + } + + e_info(hw, "VF requests change max MTU to %d\n", max_frame); + + return 0; +} + +static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe) +{ + u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf)); + vmolr |= IXGBE_VMOLR_BAM; + if (aupe) + vmolr |= IXGBE_VMOLR_AUPE; + else + vmolr &= ~IXGBE_VMOLR_AUPE; + IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr); +} + +static void ixgbe_clear_vmvir(struct ixgbe_adapter *adapter, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + + IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0); +} +static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + struct vf_data_storage *vfinfo = &adapter->vfinfo[vf]; + u8 num_tcs = netdev_get_num_tc(adapter->netdev); + + /* add PF assigned VLAN or VLAN 0 */ + ixgbe_set_vf_vlan(adapter, true, vfinfo->pf_vlan, vf); + + /* reset offloads to defaults */ + ixgbe_set_vmolr(hw, vf, !vfinfo->pf_vlan); + + /* set outgoing tags for VFs */ + if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) { + ixgbe_clear_vmvir(adapter, vf); + } else { + if (vfinfo->pf_qos || !num_tcs) + ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, + vfinfo->pf_qos, vf); + else + ixgbe_set_vmvir(adapter, vfinfo->pf_vlan, + adapter->default_up, vf); + + if (vfinfo->spoofchk_enabled) + hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); + } + + /* reset multicast table array for vf */ + adapter->vfinfo[vf].num_vf_mc_hashes = 0; + + /* Flush and reset the mta with the new values */ + ixgbe_set_rx_mode(adapter->netdev); + + ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); + + /* reset VF api back to unknown */ + adapter->vfinfo[vf].vf_api = ixgbe_mbox_api_10; +} + +static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, + int vf, unsigned char *mac_addr) +{ + ixgbe_del_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); + memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN); + ixgbe_add_mac_filter(adapter, adapter->vfinfo[vf].vf_mac_addresses, vf); + + return 0; +} + +static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, + int vf, int index, unsigned char *mac_addr) +{ + struct list_head *pos; + struct vf_macvlans *entry; + + if (index <= 1) { + list_for_each(pos, &adapter->vf_mvs.l) { + entry = list_entry(pos, struct vf_macvlans, l); + if (entry->vf == vf) { + entry->vf = -1; + entry->free = true; + entry->is_macvlan = false; + ixgbe_del_mac_filter(adapter, + entry->vf_macvlan, vf); + } + } + } + + /* + * If index was zero then we were asked to clear the uc list + * for the VF. We're done. + */ + if (!index) + return 0; + + entry = NULL; + + list_for_each(pos, &adapter->vf_mvs.l) { + entry = list_entry(pos, struct vf_macvlans, l); + if (entry->free) + break; + } + + /* + * If we traversed the entire list and didn't find a free entry + * then we're out of space on the RAR table. Also entry may + * be NULL because the original memory allocation for the list + * failed, which is not fatal but does mean we can't support + * VF requests for MACVLAN because we couldn't allocate + * memory for the list management required. + */ + if (!entry || !entry->free) + return -ENOSPC; + + entry->free = false; + entry->is_macvlan = true; + entry->vf = vf; + memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN); + + ixgbe_add_mac_filter(adapter, mac_addr, vf); + + return 0; +} + +int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) +{ + struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); + unsigned int vfn = (event_mask & 0x3f); + + bool enable = ((event_mask & 0x10000000U) != 0); + + if (enable) + eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses); + + return 0; +} + +static inline void ixgbe_write_qde(struct ixgbe_adapter *adapter, u32 vf, + u32 qde) +{ + struct ixgbe_hw *hw = &adapter->hw; + struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); + int i; + + for (i = vf * q_per_pool; i < ((vf + 1) * q_per_pool); i++) { + u32 reg; + + /* flush previous write */ + IXGBE_WRITE_FLUSH(hw); + + /* indicate to hardware that we want to set drop enable */ + reg = IXGBE_QDE_WRITE | IXGBE_QDE_ENABLE; + reg |= i << IXGBE_QDE_IDX_SHIFT; + IXGBE_WRITE_REG(hw, IXGBE_QDE, reg); + } +} + +static int ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) +{ + struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + struct ixgbe_hw *hw = &adapter->hw; + unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; + u32 reg, reg_offset, vf_shift; + u32 msgbuf[4] = {0, 0, 0, 0}; + u8 *addr = (u8 *)(&msgbuf[1]); + u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); + int i; + + e_info(probe, "VF Reset msg received from vf %d\n", vf); + + /* reset the filters for the device */ + ixgbe_vf_reset_event(adapter, vf); + + /* set vf mac address */ + if (!is_zero_ether_addr(vf_mac)) + ixgbe_set_vf_mac(adapter, vf, vf_mac); + + vf_shift = vf % 32; + reg_offset = vf / 32; + + /* enable transmit for vf */ + reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); + reg |= 1 << vf_shift; + IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); + + /* force drop enable for all VF Rx queues */ + ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE); + + /* enable receive for vf */ + reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); + reg |= 1 << vf_shift; + /* + * The 82599 cannot support a mix of jumbo and non-jumbo PF/VFs. + * For more info take a look at ixgbe_set_vf_lpe + */ + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + struct net_device *dev = adapter->netdev; + int pf_max_frame = dev->mtu + ETH_HLEN; + +#ifdef CONFIG_FCOE + if (dev->features & NETIF_F_FCOE_MTU) + pf_max_frame = max_t(int, pf_max_frame, + IXGBE_FCOE_JUMBO_FRAME_SIZE); + +#endif /* CONFIG_FCOE */ + if (pf_max_frame > ETH_FRAME_LEN) + reg &= ~(1 << vf_shift); + } + IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); + + /* enable VF mailbox for further messages */ + adapter->vfinfo[vf].clear_to_send = true; + + /* Enable counting of spoofed packets in the SSVPC register */ + reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset)); + reg |= (1 << vf_shift); + IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg); + + /* + * Reset the VFs TDWBAL and TDWBAH registers + * which are not cleared by an FLR + */ + for (i = 0; i < q_per_pool; i++) { + IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBAHn(q_per_pool, vf, i), 0); + IXGBE_WRITE_REG(hw, IXGBE_PVFTDWBALn(q_per_pool, vf, i), 0); + } + + /* reply to reset with ack and vf mac address */ + msgbuf[0] = IXGBE_VF_RESET; + if (!is_zero_ether_addr(vf_mac)) { + msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; + memcpy(addr, vf_mac, ETH_ALEN); + } else { + msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; + dev_warn(&adapter->pdev->dev, + "VF %d has no MAC address assigned, you may have to assign one manually\n", + vf); + } + + /* + * Piggyback the multicast filter type so VF can compute the + * correct vectors + */ + msgbuf[3] = hw->mac.mc_filter_type; + ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf); + + return 0; +} + +static int ixgbe_set_vf_mac_addr(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + u8 *new_mac = ((u8 *)(&msgbuf[1])); + + if (!is_valid_ether_addr(new_mac)) { + e_warn(drv, "VF %d attempted to set invalid mac\n", vf); + return -1; + } + + if (adapter->vfinfo[vf].pf_set_mac && + !ether_addr_equal(adapter->vfinfo[vf].vf_mac_addresses, new_mac)) { + e_warn(drv, + "VF %d attempted to override administratively set MAC address\n" + "Reload the VF driver to resume operations\n", + vf); + return -1; + } + + return ixgbe_set_vf_mac(adapter, vf, new_mac) < 0; +} + +static int ixgbe_find_vlvf_entry(struct ixgbe_hw *hw, u32 vlan) +{ + u32 vlvf; + s32 regindex; + + /* short cut the special case */ + if (vlan == 0) + return 0; + + /* Search for the vlan id in the VLVF entries */ + for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { + vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); + if ((vlvf & VLAN_VID_MASK) == vlan) + break; + } + + /* Return a negative value if not found */ + if (regindex >= IXGBE_VLVF_ENTRIES) + regindex = -1; + + return regindex; +} + +static int ixgbe_set_vf_vlan_msg(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + int add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> IXGBE_VT_MSGINFO_SHIFT; + int vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); + int err; + s32 reg_ndx; + u32 vlvf; + u32 bits; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + if (adapter->vfinfo[vf].pf_vlan || tcs) { + e_warn(drv, + "VF %d attempted to override administratively set VLAN configuration\n" + "Reload the VF driver to resume operations\n", + vf); + return -1; + } + + if (add) + adapter->vfinfo[vf].vlan_count++; + else if (adapter->vfinfo[vf].vlan_count) + adapter->vfinfo[vf].vlan_count--; + + /* in case of promiscuous mode any VLAN filter set for a VF must + * also have the PF pool added to it. + */ + if (add && adapter->netdev->flags & IFF_PROMISC) + err = ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); + + err = ixgbe_set_vf_vlan(adapter, add, vid, vf); + if (!err && adapter->vfinfo[vf].spoofchk_enabled) + hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); + + /* Go through all the checks to see if the VLAN filter should + * be wiped completely. + */ + if (!add && adapter->netdev->flags & IFF_PROMISC) { + reg_ndx = ixgbe_find_vlvf_entry(hw, vid); + if (reg_ndx < 0) + return err; + vlvf = IXGBE_READ_REG(hw, IXGBE_VLVF(reg_ndx)); + /* See if any other pools are set for this VLAN filter + * entry other than the PF. + */ + if (VMDQ_P(0) < 32) { + bits = IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); + bits &= ~(1 << VMDQ_P(0)); + bits |= IXGBE_READ_REG(hw, + IXGBE_VLVFB(reg_ndx * 2) + 1); + } else { + bits = IXGBE_READ_REG(hw, + IXGBE_VLVFB(reg_ndx * 2) + 1); + bits &= ~(1 << (VMDQ_P(0) - 32)); + bits |= IXGBE_READ_REG(hw, IXGBE_VLVFB(reg_ndx * 2)); + } + + /* If the filter was removed then ensure PF pool bit + * is cleared if the PF only added itself to the pool + * because the PF is in promiscuous mode. + */ + if ((vlvf & VLAN_VID_MASK) == vid && + !test_bit(vid, adapter->active_vlans) && !bits) + ixgbe_set_vf_vlan(adapter, add, vid, VMDQ_P(0)); + } + + return err; +} + +static int ixgbe_set_vf_macvlan_msg(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + u8 *new_mac = ((u8 *)(&msgbuf[1])); + int index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> + IXGBE_VT_MSGINFO_SHIFT; + int err; + + if (adapter->vfinfo[vf].pf_set_mac && index > 0) { + e_warn(drv, + "VF %d requested MACVLAN filter but is administratively denied\n", + vf); + return -1; + } + + /* An non-zero index indicates the VF is setting a filter */ + if (index) { + if (!is_valid_ether_addr(new_mac)) { + e_warn(drv, "VF %d attempted to set invalid mac\n", vf); + return -1; + } + + /* + * If the VF is allowed to set MAC filters then turn off + * anti-spoofing to avoid false positives. + */ + if (adapter->vfinfo[vf].spoofchk_enabled) + ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); + } + + err = ixgbe_set_vf_macvlan(adapter, vf, index, new_mac); + if (err == -ENOSPC) + e_warn(drv, + "VF %d has requested a MACVLAN filter but there is no space for it\n", + vf); + + return err < 0; +} + +static int ixgbe_negotiate_vf_api(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + int api = msgbuf[1]; + + switch (api) { + case ixgbe_mbox_api_10: + case ixgbe_mbox_api_11: + case ixgbe_mbox_api_12: + adapter->vfinfo[vf].vf_api = api; + return 0; + default: + break; + } + + e_info(drv, "VF %d requested invalid api version %u\n", vf, api); + + return -1; +} + +static int ixgbe_get_vf_queues(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + struct net_device *dev = adapter->netdev; + struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + unsigned int default_tc = 0; + u8 num_tcs = netdev_get_num_tc(dev); + + /* verify the PF is supporting the correct APIs */ + switch (adapter->vfinfo[vf].vf_api) { + case ixgbe_mbox_api_20: + case ixgbe_mbox_api_11: + case ixgbe_mbox_api_12: + break; + default: + return -1; + } + + /* only allow 1 Tx queue for bandwidth limiting */ + msgbuf[IXGBE_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); + msgbuf[IXGBE_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask); + + /* if TCs > 1 determine which TC belongs to default user priority */ + if (num_tcs > 1) + default_tc = netdev_get_prio_tc_map(dev, adapter->default_up); + + /* notify VF of need for VLAN tag stripping, and correct queue */ + if (num_tcs) + msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs; + else if (adapter->vfinfo[vf].pf_vlan || adapter->vfinfo[vf].pf_qos) + msgbuf[IXGBE_VF_TRANS_VLAN] = 1; + else + msgbuf[IXGBE_VF_TRANS_VLAN] = 0; + + /* notify VF of default queue */ + msgbuf[IXGBE_VF_DEF_QUEUE] = default_tc; + + return 0; +} + +static int ixgbe_get_vf_reta(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) +{ + u32 i, j; + u32 *out_buf = &msgbuf[1]; + const u8 *reta = adapter->rss_indir_tbl; + u32 reta_size = ixgbe_rss_indir_tbl_entries(adapter); + + /* Check if operation is permitted */ + if (!adapter->vfinfo[vf].rss_query_enabled) + return -EPERM; + + /* verify the PF is supporting the correct API */ + if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12) + return -EOPNOTSUPP; + + /* This mailbox command is supported (required) only for 82599 and x540 + * VFs which support up to 4 RSS queues. Therefore we will compress the + * RETA by saving only 2 bits from each entry. This way we will be able + * to transfer the whole RETA in a single mailbox operation. + */ + for (i = 0; i < reta_size / 16; i++) { + out_buf[i] = 0; + for (j = 0; j < 16; j++) + out_buf[i] |= (u32)(reta[16 * i + j] & 0x3) << (2 * j); + } + + return 0; +} + +static int ixgbe_get_vf_rss_key(struct ixgbe_adapter *adapter, + u32 *msgbuf, u32 vf) +{ + u32 *rss_key = &msgbuf[1]; + + /* Check if the operation is permitted */ + if (!adapter->vfinfo[vf].rss_query_enabled) + return -EPERM; + + /* verify the PF is supporting the correct API */ + if (adapter->vfinfo[vf].vf_api != ixgbe_mbox_api_12) + return -EOPNOTSUPP; + + memcpy(rss_key, adapter->rss_key, sizeof(adapter->rss_key)); + + return 0; +} + +static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf) +{ + u32 mbx_size = IXGBE_VFMAILBOX_SIZE; + u32 msgbuf[IXGBE_VFMAILBOX_SIZE]; + struct ixgbe_hw *hw = &adapter->hw; + s32 retval; + + retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); + + if (retval) { + pr_err("Error receiving message from VF\n"); + return retval; + } + + /* this is a message we already processed, do nothing */ + if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) + return 0; + + /* flush the ack before we write any messages back */ + IXGBE_WRITE_FLUSH(hw); + + if (msgbuf[0] == IXGBE_VF_RESET) + return ixgbe_vf_reset_msg(adapter, vf); + + /* + * until the vf completes a virtual function reset it should not be + * allowed to start any configuration. + */ + if (!adapter->vfinfo[vf].clear_to_send) { + msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; + ixgbe_write_mbx(hw, msgbuf, 1, vf); + return 0; + } + + switch ((msgbuf[0] & 0xFFFF)) { + case IXGBE_VF_SET_MAC_ADDR: + retval = ixgbe_set_vf_mac_addr(adapter, msgbuf, vf); + break; + case IXGBE_VF_SET_MULTICAST: + retval = ixgbe_set_vf_multicasts(adapter, msgbuf, vf); + break; + case IXGBE_VF_SET_VLAN: + retval = ixgbe_set_vf_vlan_msg(adapter, msgbuf, vf); + break; + case IXGBE_VF_SET_LPE: + retval = ixgbe_set_vf_lpe(adapter, msgbuf, vf); + break; + case IXGBE_VF_SET_MACVLAN: + retval = ixgbe_set_vf_macvlan_msg(adapter, msgbuf, vf); + break; + case IXGBE_VF_API_NEGOTIATE: + retval = ixgbe_negotiate_vf_api(adapter, msgbuf, vf); + break; + case IXGBE_VF_GET_QUEUES: + retval = ixgbe_get_vf_queues(adapter, msgbuf, vf); + break; + case IXGBE_VF_GET_RETA: + retval = ixgbe_get_vf_reta(adapter, msgbuf, vf); + break; + case IXGBE_VF_GET_RSS_KEY: + retval = ixgbe_get_vf_rss_key(adapter, msgbuf, vf); + break; + default: + e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]); + retval = IXGBE_ERR_MBX; + break; + } + + /* notify the VF of the results of what it sent us */ + if (retval) + msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; + else + msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK; + + msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS; + + ixgbe_write_mbx(hw, msgbuf, mbx_size, vf); + + return retval; +} + +static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + u32 msg = IXGBE_VT_MSGTYPE_NACK; + + /* if device isn't clear to send it shouldn't be reading either */ + if (!adapter->vfinfo[vf].clear_to_send) + ixgbe_write_mbx(hw, &msg, 1, vf); +} + +void ixgbe_msg_task(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + u32 vf; + + for (vf = 0; vf < adapter->num_vfs; vf++) { + /* process any reset requests */ + if (!ixgbe_check_for_rst(hw, vf)) + ixgbe_vf_reset_event(adapter, vf); + + /* process any messages pending */ + if (!ixgbe_check_for_msg(hw, vf)) + ixgbe_rcv_msg_from_vf(adapter, vf); + + /* process any acks */ + if (!ixgbe_check_for_ack(hw, vf)) + ixgbe_rcv_ack_from_vf(adapter, vf); + } +} + +void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + + /* disable transmit and receive for all vfs */ + IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); + IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); + + IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); + IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); +} + +void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + u32 ping; + int i; + + for (i = 0 ; i < adapter->num_vfs; i++) { + ping = IXGBE_PF_CONTROL_MSG; + if (adapter->vfinfo[i].clear_to_send) + ping |= IXGBE_VT_MSGTYPE_CTS; + ixgbe_write_mbx(hw, &ping, 1, i); + } +} + +int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) +{ + struct ixgbe_adapter *adapter = netdev_priv(netdev); + if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs)) + return -EINVAL; + adapter->vfinfo[vf].pf_set_mac = true; + dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); + dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" + " change effective."); + if (test_bit(__IXGBE_DOWN, &adapter->state)) { + dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," + " but the PF device is not up.\n"); + dev_warn(&adapter->pdev->dev, "Bring the PF device up before" + " attempting to use the VF device.\n"); + } + return ixgbe_set_vf_mac(adapter, vf, mac); +} + +static int ixgbe_enable_port_vlan(struct ixgbe_adapter *adapter, int vf, + u16 vlan, u8 qos) +{ + struct ixgbe_hw *hw = &adapter->hw; + int err; + + err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); + if (err) + goto out; + + ixgbe_set_vmvir(adapter, vlan, qos, vf); + ixgbe_set_vmolr(hw, vf, false); + if (adapter->vfinfo[vf].spoofchk_enabled) + hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); + adapter->vfinfo[vf].vlan_count++; + + /* enable hide vlan on X550 */ + if (hw->mac.type >= ixgbe_mac_X550) + ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE | + IXGBE_QDE_HIDE_VLAN); + + adapter->vfinfo[vf].pf_vlan = vlan; + adapter->vfinfo[vf].pf_qos = qos; + dev_info(&adapter->pdev->dev, + "Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf); + if (test_bit(__IXGBE_DOWN, &adapter->state)) { + dev_warn(&adapter->pdev->dev, + "The VF VLAN has been set, but the PF device is not up.\n"); + dev_warn(&adapter->pdev->dev, + "Bring the PF device up before attempting to use the VF device.\n"); + } + +out: + return err; +} + +static int ixgbe_disable_port_vlan(struct ixgbe_adapter *adapter, int vf) +{ + struct ixgbe_hw *hw = &adapter->hw; + int err; + + err = ixgbe_set_vf_vlan(adapter, false, + adapter->vfinfo[vf].pf_vlan, vf); + ixgbe_clear_vmvir(adapter, vf); + ixgbe_set_vmolr(hw, vf, true); + hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); + if (adapter->vfinfo[vf].vlan_count) + adapter->vfinfo[vf].vlan_count--; + + /* disable hide VLAN on X550 */ + if (hw->mac.type >= ixgbe_mac_X550) + ixgbe_write_qde(adapter, vf, IXGBE_QDE_ENABLE); + + adapter->vfinfo[vf].pf_vlan = 0; + adapter->vfinfo[vf].pf_qos = 0; + + return err; +} + +int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos) +{ + int err = 0; + struct ixgbe_adapter *adapter = netdev_priv(netdev); + + if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) + return -EINVAL; + if (vlan || qos) { + /* Check if there is already a port VLAN set, if so + * we have to delete the old one first before we + * can set the new one. The usage model had + * previously assumed the user would delete the + * old port VLAN before setting a new one but this + * is not necessarily the case. + */ + if (adapter->vfinfo[vf].pf_vlan) + err = ixgbe_disable_port_vlan(adapter, vf); + if (err) + goto out; + err = ixgbe_enable_port_vlan(adapter, vf, vlan, qos); + } else { + err = ixgbe_disable_port_vlan(adapter, vf); + } + +out: + return err; +} + +static int ixgbe_link_mbps(struct ixgbe_adapter *adapter) +{ + switch (adapter->link_speed) { + case IXGBE_LINK_SPEED_100_FULL: + return 100; + case IXGBE_LINK_SPEED_1GB_FULL: + return 1000; + case IXGBE_LINK_SPEED_10GB_FULL: + return 10000; + default: + return 0; + } +} + +static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf) +{ + struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; + struct ixgbe_hw *hw = &adapter->hw; + u32 bcnrc_val = 0; + u16 queue, queues_per_pool; + u16 tx_rate = adapter->vfinfo[vf].tx_rate; + + if (tx_rate) { + /* start with base link speed value */ + bcnrc_val = adapter->vf_rate_link_speed; + + /* Calculate the rate factor values to set */ + bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT; + bcnrc_val /= tx_rate; + + /* clear everything but the rate factor */ + bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK | + IXGBE_RTTBCNRC_RF_DEC_MASK; + + /* enable the rate scheduler */ + bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA; + } + + /* + * Set global transmit compensation time to the MMW_SIZE in RTTBCNRM + * register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported + * and 0x004 otherwise. + */ + switch (hw->mac.type) { + case ixgbe_mac_82599EB: + IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x4); + break; + case ixgbe_mac_X540: + IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRM, 0x14); + break; + default: + break; + } + + /* determine how many queues per pool based on VMDq mask */ + queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask); + + /* write value for all Tx queues belonging to VF */ + for (queue = 0; queue < queues_per_pool; queue++) { + unsigned int reg_idx = (vf * queues_per_pool) + queue; + + IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx); + IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); + } +} + +void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) +{ + int i; + + /* VF Tx rate limit was not set */ + if (!adapter->vf_rate_link_speed) + return; + + if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) { + adapter->vf_rate_link_speed = 0; + dev_info(&adapter->pdev->dev, + "Link speed has been changed. VF Transmit rate is disabled\n"); + } + + for (i = 0; i < adapter->num_vfs; i++) { + if (!adapter->vf_rate_link_speed) + adapter->vfinfo[i].tx_rate = 0; + + ixgbe_set_vf_rate_limit(adapter, i); + } +} + +int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int min_tx_rate, + int max_tx_rate) +{ + struct ixgbe_adapter *adapter = netdev_priv(netdev); + int link_speed; + + /* verify VF is active */ + if (vf >= adapter->num_vfs) + return -EINVAL; + + /* verify link is up */ + if (!adapter->link_up) + return -EINVAL; + + /* verify we are linked at 10Gbps */ + link_speed = ixgbe_link_mbps(adapter); + if (link_speed != 10000) + return -EINVAL; + + if (min_tx_rate) + return -EINVAL; + + /* rate limit cannot be less than 10Mbs or greater than link speed */ + if (max_tx_rate && ((max_tx_rate <= 10) || (max_tx_rate > link_speed))) + return -EINVAL; + + /* store values */ + adapter->vf_rate_link_speed = link_speed; + adapter->vfinfo[vf].tx_rate = max_tx_rate; + + /* update hardware configuration */ + ixgbe_set_vf_rate_limit(adapter, vf); + + return 0; +} + +int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting) +{ + struct ixgbe_adapter *adapter = netdev_priv(netdev); + int vf_target_reg = vf >> 3; + int vf_target_shift = vf % 8; + struct ixgbe_hw *hw = &adapter->hw; + u32 regval; + + if (vf >= adapter->num_vfs) + return -EINVAL; + + adapter->vfinfo[vf].spoofchk_enabled = setting; + + regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); + regval &= ~(1 << vf_target_shift); + regval |= (setting << vf_target_shift); + IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); + + if (adapter->vfinfo[vf].vlan_count) { + vf_target_shift += IXGBE_SPOOF_VLANAS_SHIFT; + regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); + regval &= ~(1 << vf_target_shift); + regval |= (setting << vf_target_shift); + IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), regval); + } + + return 0; +} + +int ixgbe_ndo_set_vf_rss_query_en(struct net_device *netdev, int vf, + bool setting) +{ + struct ixgbe_adapter *adapter = netdev_priv(netdev); + + /* This operation is currently supported only for 82599 and x540 + * devices. + */ + if (adapter->hw.mac.type < ixgbe_mac_82599EB || + adapter->hw.mac.type >= ixgbe_mac_X550) + return -EOPNOTSUPP; + + if (vf >= adapter->num_vfs) + return -EINVAL; + + adapter->vfinfo[vf].rss_query_enabled = setting; + + return 0; +} + +int ixgbe_ndo_get_vf_config(struct net_device *netdev, + int vf, struct ifla_vf_info *ivi) +{ + struct ixgbe_adapter *adapter = netdev_priv(netdev); + if (vf >= adapter->num_vfs) + return -EINVAL; + ivi->vf = vf; + memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN); + ivi->max_tx_rate = adapter->vfinfo[vf].tx_rate; + ivi->min_tx_rate = 0; + ivi->vlan = adapter->vfinfo[vf].pf_vlan; + ivi->qos = adapter->vfinfo[vf].pf_qos; + ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; + ivi->rss_query_en = adapter->vfinfo[vf].rss_query_enabled; + return 0; +} -- cgit v1.2.3-54-g00ecf