| /******************************************************************************* |
| |
| Intel 10 Gigabit PCI Express Linux driver |
| Copyright(c) 1999 - 2012 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: |
| e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| |
| *******************************************************************************/ |
| |
| #include <linux/types.h> |
| #include <linux/module.h> |
| #include <linux/pci.h> |
| #include <linux/netdevice.h> |
| #include <linux/vmalloc.h> |
| #include <linux/string.h> |
| #include <linux/in.h> |
| #include <linux/ip.h> |
| #include <linux/tcp.h> |
| #include <linux/ipv6.h> |
| #ifdef NETIF_F_HW_VLAN_TX |
| #include <linux/if_vlan.h> |
| #endif |
| |
| #include "ixgbe.h" |
| #include "ixgbe_type.h" |
| #include "ixgbe_sriov.h" |
| |
| #ifdef CONFIG_PCI_IOV |
| void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, |
| const struct ixgbe_info *ii) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| int num_vf_macvlans, i; |
| struct vf_macvlans *mv_list; |
| 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 because they were not deleted the last |
| * time someone removed the PF driver. That would have |
| * been because they were allocated to guest VMs and can't |
| * be removed. Go ahead and just re-enable the old amount. |
| * If the user wants to change the number of VFs they can |
| * use ethtool while making sure no VFs are allocated to |
| * guest VMs... i.e. the right way. |
| */ |
| 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 thn |
| * 63 VFs then it is an error - reset to default of zero. |
| */ |
| adapter->num_vfs = min_t(unsigned int, adapter->num_vfs, 63); |
| |
| 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; |
| } |
| } |
| |
| 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; |
| mv_list->rar_entry = hw->mac.num_rar_entries - |
| (i + adapter->num_vfs + 1); |
| list_add(&mv_list->l, &adapter->vf_mvs.l); |
| mv_list++; |
| } |
| } |
| |
| /* 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) { |
| /* Now that we're sure SR-IOV is enabled |
| * and memory allocated set up the mailbox parameters |
| */ |
| ixgbe_init_mbx_params_pf(hw); |
| memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); |
| |
| /* 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; |
| } |
| |
| /* We do not support RSS w/ SR-IOV */ |
| adapter->ring_feature[RING_F_RSS].limit = 1; |
| |
| /* Disable RSC when in SR-IOV mode */ |
| adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | |
| IXGBE_FLAG2_RSC_ENABLED); |
| |
| #ifdef IXGBE_FCOE |
| /* |
| * When SR-IOV is enabled 82599 cannot support jumbo frames |
| * so we must disable FCoE because we cannot support FCoE MTU. |
| */ |
| if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
| adapter->flags &= ~(IXGBE_FLAG_FCOE_ENABLED | |
| IXGBE_FLAG_FCOE_CAPABLE); |
| #endif |
| |
| /* enable spoof checking for all VFs */ |
| for (i = 0; i < adapter->num_vfs; i++) |
| adapter->vfinfo[i].spoofchk_enabled = true; |
| return; |
| } |
| |
| /* Oh oh */ |
| e_err(probe, "Unable to allocate memory for VF Data Storage - " |
| "SRIOV disabled\n"); |
| ixgbe_disable_sriov(adapter); |
| } |
| |
| static bool ixgbe_vfs_are_assigned(struct ixgbe_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| struct pci_dev *vfdev; |
| int dev_id; |
| |
| switch (adapter->hw.mac.type) { |
| case ixgbe_mac_82599EB: |
| dev_id = IXGBE_DEV_ID_82599_VF; |
| break; |
| case ixgbe_mac_X540: |
| dev_id = IXGBE_DEV_ID_X540_VF; |
| break; |
| default: |
| return false; |
| } |
| |
| /* loop through all the VFs to see if we own any that are assigned */ |
| vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL); |
| while (vfdev) { |
| /* if we don't own it we don't care */ |
| if (vfdev->is_virtfn && vfdev->physfn == pdev) { |
| /* if it is assigned we cannot release it */ |
| if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) |
| return true; |
| } |
| |
| vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, vfdev); |
| } |
| |
| return false; |
| } |
| |
| #endif /* #ifdef CONFIG_PCI_IOV */ |
| void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| u32 gpie; |
| u32 vmdctl; |
| |
| /* 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; |
| |
| #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 (ixgbe_vfs_are_assigned(adapter)) { |
| e_dev_warn("Unloading driver while VFs are assigned - VFs will not be deallocated\n"); |
| return; |
| } |
| /* 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->ring_feature[RING_F_VMDQ].offset = 0; |
| |
| /* take a breather then clean up driver data */ |
| msleep(100); |
| |
| adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; |
| } |
| |
| static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter, |
| int entries, u16 *hash_list, u32 vf) |
| { |
| 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; |
| |
| /* 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); |
| } |
| |
| return 0; |
| } |
| |
| static void ixgbe_restore_vf_macvlans(struct ixgbe_adapter *adapter) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| struct list_head *pos; |
| struct vf_macvlans *entry; |
| |
| list_for_each(pos, &adapter->vf_mvs.l) { |
| entry = list_entry(pos, struct vf_macvlans, l); |
| if (!entry->free) |
| hw->mac.ops.set_rar(hw, entry->rar_entry, |
| entry->vf_macvlan, |
| entry->vf, IXGBE_RAH_AV); |
| } |
| } |
| |
| 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++) { |
| 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); |
| } |
| } |
| |
| /* Restore any VF macvlans */ |
| ixgbe_restore_vf_macvlans(adapter); |
| } |
| |
| 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 void ixgbe_set_vf_lpe(struct ixgbe_adapter *adapter, u32 *msgbuf) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| int new_mtu = msgbuf[1]; |
| u32 max_frs; |
| int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; |
| |
| /* Only X540 supports jumbo frames in IOV mode */ |
| if (adapter->hw.mac.type != ixgbe_mac_X540) |
| return; |
| |
| /* MTU < 68 is an error and causes problems on some kernels */ |
| if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) { |
| e_err(drv, "VF mtu %d out of range\n", new_mtu); |
| return; |
| } |
| |
| max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) & |
| IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT; |
| if (max_frs < new_mtu) { |
| max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT; |
| IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs); |
| } |
| |
| e_info(hw, "VF requests change max MTU to %d\n", new_mtu); |
| } |
| |
| 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_ROMPE | |
| 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_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| |
| if (vid) |
| IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), |
| (vid | IXGBE_VMVIR_VLANA_DEFAULT)); |
| else |
| 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; |
| int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
| |
| /* reset offloads to defaults */ |
| if (adapter->vfinfo[vf].pf_vlan) { |
| ixgbe_set_vf_vlan(adapter, true, |
| adapter->vfinfo[vf].pf_vlan, vf); |
| ixgbe_set_vmvir(adapter, |
| (adapter->vfinfo[vf].pf_vlan | |
| (adapter->vfinfo[vf].pf_qos << |
| VLAN_PRIO_SHIFT)), vf); |
| ixgbe_set_vmolr(hw, vf, false); |
| } else { |
| ixgbe_set_vf_vlan(adapter, true, 0, vf); |
| ixgbe_set_vmvir(adapter, 0, vf); |
| ixgbe_set_vmolr(hw, vf, true); |
| } |
| |
| /* 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); |
| |
| hw->mac.ops.clear_rar(hw, rar_entry); |
| } |
| |
| static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter, |
| int vf, unsigned char *mac_addr) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| int rar_entry = hw->mac.num_rar_entries - (vf + 1); |
| |
| memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6); |
| hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
| |
| return 0; |
| } |
| |
| static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter, |
| int vf, int index, unsigned char *mac_addr) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| 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; |
| hw->mac.ops.clear_rar(hw, entry->rar_entry); |
| } |
| } |
| } |
| |
| /* |
| * 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); |
| |
| hw->mac.ops.set_rar(hw, entry->rar_entry, mac_addr, vf, IXGBE_RAH_AV); |
| |
| return 0; |
| } |
| |
| int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask) |
| { |
| unsigned char vf_mac_addr[6]; |
| struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
| unsigned int vfn = (event_mask & 0x3f); |
| |
| bool enable = ((event_mask & 0x10000000U) != 0); |
| |
| if (enable) { |
| eth_random_addr(vf_mac_addr); |
| e_info(probe, "IOV: VF %d is enabled MAC %pM\n", |
| vfn, vf_mac_addr); |
| /* |
| * Store away the VF "permananet" MAC address, it will ask |
| * for it later. |
| */ |
| memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6); |
| } |
| |
| return 0; |
| } |
| |
| static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf) |
| { |
| struct ixgbe_hw *hw = &adapter->hw; |
| u32 reg; |
| u32 reg_offset, vf_shift; |
| |
| vf_shift = vf % 32; |
| reg_offset = vf / 32; |
| |
| /* enable transmit and receive for vf */ |
| reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset)); |
| reg |= (reg | (1 << vf_shift)); |
| IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg); |
| |
| reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset)); |
| reg |= (reg | (1 << vf_shift)); |
| IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg); |
| |
| /* 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); |
| |
| ixgbe_vf_reset_event(adapter, vf); |
| } |
| |
| 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; |
| int entries; |
| u16 *hash_list; |
| int add, vid, index; |
| u8 *new_mac; |
| |
| 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 retval; |
| |
| /* flush the ack before we write any messages back */ |
| IXGBE_WRITE_FLUSH(hw); |
| |
| /* |
| * until the vf completes a virtual function reset it should not be |
| * allowed to start any configuration. |
| */ |
| |
| if (msgbuf[0] == IXGBE_VF_RESET) { |
| unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses; |
| new_mac = (u8 *)(&msgbuf[1]); |
| e_info(probe, "VF Reset msg received from vf %d\n", vf); |
| adapter->vfinfo[vf].clear_to_send = false; |
| ixgbe_vf_reset_msg(adapter, vf); |
| adapter->vfinfo[vf].clear_to_send = true; |
| |
| if (is_valid_ether_addr(new_mac) && |
| !adapter->vfinfo[vf].pf_set_mac) |
| ixgbe_set_vf_mac(adapter, vf, vf_mac); |
| else |
| ixgbe_set_vf_mac(adapter, |
| vf, adapter->vfinfo[vf].vf_mac_addresses); |
| |
| /* reply to reset with ack and vf mac address */ |
| msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK; |
| memcpy(new_mac, vf_mac, ETH_ALEN); |
| /* |
| * 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 retval; |
| } |
| |
| if (!adapter->vfinfo[vf].clear_to_send) { |
| msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK; |
| ixgbe_write_mbx(hw, msgbuf, 1, vf); |
| return retval; |
| } |
| |
| switch ((msgbuf[0] & 0xFFFF)) { |
| case IXGBE_VF_SET_MAC_ADDR: |
| new_mac = ((u8 *)(&msgbuf[1])); |
| if (is_valid_ether_addr(new_mac) && |
| !adapter->vfinfo[vf].pf_set_mac) { |
| ixgbe_set_vf_mac(adapter, vf, new_mac); |
| } else if (memcmp(adapter->vfinfo[vf].vf_mac_addresses, |
| new_mac, ETH_ALEN)) { |
| e_warn(drv, "VF %d attempted to override " |
| "administratively set MAC address\nReload " |
| "the VF driver to resume operations\n", vf); |
| retval = -1; |
| } |
| break; |
| case IXGBE_VF_SET_MULTICAST: |
| entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) |
| >> IXGBE_VT_MSGINFO_SHIFT; |
| hash_list = (u16 *)&msgbuf[1]; |
| retval = ixgbe_set_vf_multicasts(adapter, entries, |
| hash_list, vf); |
| break; |
| case IXGBE_VF_SET_LPE: |
| ixgbe_set_vf_lpe(adapter, msgbuf); |
| break; |
| case IXGBE_VF_SET_VLAN: |
| add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) |
| >> IXGBE_VT_MSGINFO_SHIFT; |
| vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); |
| if (adapter->vfinfo[vf].pf_vlan) { |
| e_warn(drv, "VF %d attempted to override " |
| "administratively set VLAN configuration\n" |
| "Reload the VF driver to resume operations\n", |
| vf); |
| retval = -1; |
| } else { |
| if (add) |
| adapter->vfinfo[vf].vlan_count++; |
| else if (adapter->vfinfo[vf].vlan_count) |
| adapter->vfinfo[vf].vlan_count--; |
| retval = ixgbe_set_vf_vlan(adapter, add, vid, vf); |
| if (!retval && adapter->vfinfo[vf].spoofchk_enabled) |
| hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); |
| } |
| break; |
| case IXGBE_VF_SET_MACVLAN: |
| index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> |
| IXGBE_VT_MSGINFO_SHIFT; |
| if (adapter->vfinfo[vf].pf_set_mac && index > 0) { |
| e_warn(drv, "VF %d requested MACVLAN filter but is " |
| "administratively denied\n", vf); |
| retval = -1; |
| break; |
| } |
| /* |
| * If the VF is allowed to set MAC filters then turn off |
| * anti-spoofing to avoid false positives. An index |
| * greater than 0 will indicate the VF is setting a |
| * macvlan MAC filter. |
| */ |
| if (index > 0 && adapter->vfinfo[vf].spoofchk_enabled) |
| ixgbe_ndo_set_vf_spoofchk(adapter->netdev, vf, false); |
| retval = ixgbe_set_vf_macvlan(adapter, vf, index, |
| (unsigned char *)(&msgbuf[1])); |
| if (retval == -ENOSPC) |
| e_warn(drv, "VF %d has requested a MACVLAN filter " |
| "but there is no space for it\n", 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, 1, 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); |
| } |
| |
| 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); |
| struct ixgbe_hw *hw = &adapter->hw; |
| |
| if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7)) |
| return -EINVAL; |
| if (vlan || qos) { |
| err = ixgbe_set_vf_vlan(adapter, true, vlan, vf); |
| if (err) |
| goto out; |
| ixgbe_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), 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++; |
| 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"); |
| } |
| } else { |
| err = ixgbe_set_vf_vlan(adapter, false, |
| adapter->vfinfo[vf].pf_vlan, vf); |
| ixgbe_set_vmvir(adapter, vlan, 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--; |
| adapter->vfinfo[vf].pf_vlan = 0; |
| adapter->vfinfo[vf].pf_qos = 0; |
| } |
| 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 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; |
| |
| /* rate limit cannot be less than 10Mbs or greater than link speed */ |
| if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed))) |
| return -EINVAL; |
| |
| /* store values */ |
| adapter->vf_rate_link_speed = link_speed; |
| adapter->vfinfo[vf].tx_rate = 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; |
| |
| 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_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->tx_rate = adapter->vfinfo[vf].tx_rate; |
| ivi->vlan = adapter->vfinfo[vf].pf_vlan; |
| ivi->qos = adapter->vfinfo[vf].pf_qos; |
| ivi->spoofchk = adapter->vfinfo[vf].spoofchk_enabled; |
| return 0; |
| } |