diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_sriov.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_sriov.c | 447 |
1 files changed, 0 insertions, 447 deletions
diff --git a/drivers/net/ixgbe/ixgbe_sriov.c b/drivers/net/ixgbe/ixgbe_sriov.c deleted file mode 100644 index 6e3e94b5a5f..00000000000 --- a/drivers/net/ixgbe/ixgbe_sriov.c +++ /dev/null @@ -1,447 +0,0 @@ -/******************************************************************************* - - Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2010 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_sriov.h" - -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; -} - -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); - } - } -} - -static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid, - u32 vf) -{ - return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add); -} - - -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_ROPE | - 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_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; -} - -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) { - random_ether_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); - - 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[mbx_size]; - struct ixgbe_hw *hw = &adapter->hw; - s32 retval; - int entries; - u16 *hash_list; - int add, vid; - - retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf); - - if (retval) - pr_err("Error receiving message from VF\n"); - - /* this is a message we already processed, do nothing */ - if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK)) - return retval; - - /* - * 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; - u8 *addr = (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; - - /* reply to reset with ack and vf mac address */ - msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK; - memcpy(addr, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS); - /* - * 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: - { - u8 *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 - ixgbe_set_vf_mac(adapter, - vf, adapter->vfinfo[vf].vf_mac_addresses); - } - 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: - WARN_ON((msgbuf[0] & 0xFFFF) == IXGBE_VF_SET_LPE); - break; - case IXGBE_VF_SET_VLAN: - add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) - >> IXGBE_VT_MSGINFO_SHIFT; - vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK); - retval = ixgbe_set_vf_vlan(adapter, add, vid, 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); - - 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(&adapter->hw, vf, false); - 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(&adapter->hw, vf, true); - 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; -} |