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96cc637235
This change fixes VM pool allocation issues based on MAC address filtering, as well as limits the scope of VF access to promiscuous mode. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
472 lines
13 KiB
C
472 lines
13 KiB
C
/*******************************************************************************
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Intel 10 Gigabit PCI Express Linux driver
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Copyright(c) 1999 - 2010 Intel Corporation.
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information:
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e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*******************************************************************************/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/netdevice.h>
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#include <linux/vmalloc.h>
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#include <linux/string.h>
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#include <linux/in.h>
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#include <linux/ip.h>
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#include <linux/tcp.h>
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#include <linux/ipv6.h>
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#ifdef NETIF_F_HW_VLAN_TX
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#include <linux/if_vlan.h>
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#endif
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#include "ixgbe.h"
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#include "ixgbe_sriov.h"
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static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
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int entries, u16 *hash_list, u32 vf)
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{
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struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
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struct ixgbe_hw *hw = &adapter->hw;
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int i;
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u32 vector_bit;
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u32 vector_reg;
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u32 mta_reg;
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/* only so many hash values supported */
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entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
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/*
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* salt away the number of multi cast addresses assigned
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* to this VF for later use to restore when the PF multi cast
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* list changes
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*/
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vfinfo->num_vf_mc_hashes = entries;
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/*
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* VFs are limited to using the MTA hash table for their multicast
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* addresses
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*/
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for (i = 0; i < entries; i++) {
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vfinfo->vf_mc_hashes[i] = hash_list[i];
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}
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for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
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vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
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vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
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mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
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mta_reg |= (1 << vector_bit);
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IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
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}
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return 0;
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}
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void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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struct vf_data_storage *vfinfo;
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int i, j;
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u32 vector_bit;
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u32 vector_reg;
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u32 mta_reg;
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for (i = 0; i < adapter->num_vfs; i++) {
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vfinfo = &adapter->vfinfo[i];
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for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
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hw->addr_ctrl.mta_in_use++;
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vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
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vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
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mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
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mta_reg |= (1 << vector_bit);
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IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
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}
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}
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}
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static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
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u32 vf)
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{
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return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
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}
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static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
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{
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u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
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vmolr |= (IXGBE_VMOLR_ROMPE |
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IXGBE_VMOLR_BAM);
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if (aupe)
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vmolr |= IXGBE_VMOLR_AUPE;
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else
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vmolr &= ~IXGBE_VMOLR_AUPE;
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IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
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}
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static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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if (vid)
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IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf),
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(vid | IXGBE_VMVIR_VLANA_DEFAULT));
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else
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IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
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}
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static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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int rar_entry = hw->mac.num_rar_entries - (vf + 1);
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/* reset offloads to defaults */
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if (adapter->vfinfo[vf].pf_vlan) {
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ixgbe_set_vf_vlan(adapter, true,
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adapter->vfinfo[vf].pf_vlan, vf);
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ixgbe_set_vmvir(adapter,
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(adapter->vfinfo[vf].pf_vlan |
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(adapter->vfinfo[vf].pf_qos <<
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VLAN_PRIO_SHIFT)), vf);
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ixgbe_set_vmolr(hw, vf, false);
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} else {
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ixgbe_set_vmvir(adapter, 0, vf);
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ixgbe_set_vmolr(hw, vf, true);
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}
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/* reset multicast table array for vf */
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adapter->vfinfo[vf].num_vf_mc_hashes = 0;
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/* Flush and reset the mta with the new values */
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ixgbe_set_rx_mode(adapter->netdev);
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hw->mac.ops.clear_rar(hw, rar_entry);
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}
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static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
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int vf, unsigned char *mac_addr)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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int rar_entry = hw->mac.num_rar_entries - (vf + 1);
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memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
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hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
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return 0;
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}
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int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
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{
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unsigned char vf_mac_addr[6];
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struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
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unsigned int vfn = (event_mask & 0x3f);
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bool enable = ((event_mask & 0x10000000U) != 0);
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if (enable) {
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random_ether_addr(vf_mac_addr);
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e_info(probe, "IOV: VF %d is enabled MAC %pM\n",
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vfn, vf_mac_addr);
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/*
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* Store away the VF "permananet" MAC address, it will ask
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* for it later.
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*/
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memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
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}
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return 0;
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}
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static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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u32 reg;
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u32 reg_offset, vf_shift;
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vf_shift = vf % 32;
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reg_offset = vf / 32;
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/* enable transmit and receive for vf */
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reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
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reg |= (reg | (1 << vf_shift));
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IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
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reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
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reg |= (reg | (1 << vf_shift));
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IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
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/* Enable counting of spoofed packets in the SSVPC register */
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reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
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reg |= (1 << vf_shift);
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IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
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ixgbe_vf_reset_event(adapter, vf);
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}
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static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
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{
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u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
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u32 msgbuf[mbx_size];
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struct ixgbe_hw *hw = &adapter->hw;
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s32 retval;
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int entries;
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u16 *hash_list;
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int add, vid;
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u8 *new_mac;
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retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
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if (retval)
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pr_err("Error receiving message from VF\n");
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/* this is a message we already processed, do nothing */
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if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
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return retval;
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/*
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* until the vf completes a virtual function reset it should not be
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* allowed to start any configuration.
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*/
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if (msgbuf[0] == IXGBE_VF_RESET) {
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unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
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new_mac = (u8 *)(&msgbuf[1]);
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e_info(probe, "VF Reset msg received from vf %d\n", vf);
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adapter->vfinfo[vf].clear_to_send = false;
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ixgbe_vf_reset_msg(adapter, vf);
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adapter->vfinfo[vf].clear_to_send = true;
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if (is_valid_ether_addr(new_mac) &&
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!adapter->vfinfo[vf].pf_set_mac)
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ixgbe_set_vf_mac(adapter, vf, vf_mac);
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else
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ixgbe_set_vf_mac(adapter,
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vf, adapter->vfinfo[vf].vf_mac_addresses);
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/* reply to reset with ack and vf mac address */
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msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
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memcpy(new_mac, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS);
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/*
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* Piggyback the multicast filter type so VF can compute the
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* correct vectors
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*/
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msgbuf[3] = hw->mac.mc_filter_type;
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ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
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return retval;
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}
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if (!adapter->vfinfo[vf].clear_to_send) {
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msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
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ixgbe_write_mbx(hw, msgbuf, 1, vf);
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return retval;
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}
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switch ((msgbuf[0] & 0xFFFF)) {
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case IXGBE_VF_SET_MAC_ADDR:
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new_mac = ((u8 *)(&msgbuf[1]));
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if (is_valid_ether_addr(new_mac) &&
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!adapter->vfinfo[vf].pf_set_mac) {
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ixgbe_set_vf_mac(adapter, vf, new_mac);
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} else if (memcmp(adapter->vfinfo[vf].vf_mac_addresses,
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new_mac, ETH_ALEN)) {
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e_warn(drv, "VF %d attempted to override "
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"administratively set MAC address\nReload "
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"the VF driver to resume operations\n", vf);
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retval = -1;
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}
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break;
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case IXGBE_VF_SET_MULTICAST:
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entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
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>> IXGBE_VT_MSGINFO_SHIFT;
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hash_list = (u16 *)&msgbuf[1];
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retval = ixgbe_set_vf_multicasts(adapter, entries,
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hash_list, vf);
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break;
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case IXGBE_VF_SET_LPE:
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WARN_ON((msgbuf[0] & 0xFFFF) == IXGBE_VF_SET_LPE);
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break;
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case IXGBE_VF_SET_VLAN:
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add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
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>> IXGBE_VT_MSGINFO_SHIFT;
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vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
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if (adapter->vfinfo[vf].pf_vlan) {
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e_warn(drv, "VF %d attempted to override "
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"administratively set VLAN configuration\n"
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"Reload the VF driver to resume operations\n",
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vf);
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retval = -1;
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} else {
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retval = ixgbe_set_vf_vlan(adapter, add, vid, vf);
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}
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break;
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default:
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e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
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retval = IXGBE_ERR_MBX;
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break;
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}
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/* notify the VF of the results of what it sent us */
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if (retval)
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msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
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else
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msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
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msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
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ixgbe_write_mbx(hw, msgbuf, 1, vf);
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return retval;
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}
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static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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u32 msg = IXGBE_VT_MSGTYPE_NACK;
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/* if device isn't clear to send it shouldn't be reading either */
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if (!adapter->vfinfo[vf].clear_to_send)
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ixgbe_write_mbx(hw, &msg, 1, vf);
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}
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void ixgbe_msg_task(struct ixgbe_adapter *adapter)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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u32 vf;
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for (vf = 0; vf < adapter->num_vfs; vf++) {
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/* process any reset requests */
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if (!ixgbe_check_for_rst(hw, vf))
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ixgbe_vf_reset_event(adapter, vf);
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/* process any messages pending */
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if (!ixgbe_check_for_msg(hw, vf))
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ixgbe_rcv_msg_from_vf(adapter, vf);
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/* process any acks */
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if (!ixgbe_check_for_ack(hw, vf))
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ixgbe_rcv_ack_from_vf(adapter, vf);
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}
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}
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void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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/* disable transmit and receive for all vfs */
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IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
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IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
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IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
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IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
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}
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void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
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{
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struct ixgbe_hw *hw = &adapter->hw;
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u32 ping;
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int i;
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for (i = 0 ; i < adapter->num_vfs; i++) {
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ping = IXGBE_PF_CONTROL_MSG;
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if (adapter->vfinfo[i].clear_to_send)
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ping |= IXGBE_VT_MSGTYPE_CTS;
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ixgbe_write_mbx(hw, &ping, 1, i);
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}
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}
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int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
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{
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
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return -EINVAL;
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adapter->vfinfo[vf].pf_set_mac = true;
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dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
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dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
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" change effective.");
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if (test_bit(__IXGBE_DOWN, &adapter->state)) {
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dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
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" but the PF device is not up.\n");
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dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
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" attempting to use the VF device.\n");
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}
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return ixgbe_set_vf_mac(adapter, vf, mac);
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}
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int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
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{
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int err = 0;
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struct ixgbe_adapter *adapter = netdev_priv(netdev);
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struct ixgbe_hw *hw = &adapter->hw;
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if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
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return -EINVAL;
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if (vlan || qos) {
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err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
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if (err)
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goto out;
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ixgbe_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf);
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ixgbe_set_vmolr(hw, vf, false);
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hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
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adapter->vfinfo[vf].pf_vlan = vlan;
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adapter->vfinfo[vf].pf_qos = qos;
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dev_info(&adapter->pdev->dev,
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"Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
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if (test_bit(__IXGBE_DOWN, &adapter->state)) {
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dev_warn(&adapter->pdev->dev,
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"The VF VLAN has been set,"
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" but the PF device is not up.\n");
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dev_warn(&adapter->pdev->dev,
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"Bring the PF device up before"
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" attempting to use the VF device.\n");
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}
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} else {
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err = ixgbe_set_vf_vlan(adapter, false,
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adapter->vfinfo[vf].pf_vlan, vf);
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ixgbe_set_vmvir(adapter, vlan, vf);
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ixgbe_set_vmolr(hw, vf, true);
|
|
hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf);
|
|
adapter->vfinfo[vf].pf_vlan = 0;
|
|
adapter->vfinfo[vf].pf_qos = 0;
|
|
}
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
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 = 0;
|
|
ivi->vlan = adapter->vfinfo[vf].pf_vlan;
|
|
ivi->qos = adapter->vfinfo[vf].pf_qos;
|
|
return 0;
|
|
}
|