diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-07 18:42:33 +0400 |
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committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-11 07:03:27 +0400 |
commit | dee1ad47f2ee75f5146d83ca757c1b7861c34c3b (patch) | |
tree | 47cbdefe3d0f9b729724e378ad6a96eaddfd5fbc /drivers/net/ixgbe/ixgbe_sriov.c | |
parent | f7917c009c28c941ba151ee66f04dc7f6a2e1e0b (diff) | |
download | linux-dee1ad47f2ee75f5146d83ca757c1b7861c34c3b.tar.xz |
intel: Move the Intel wired LAN drivers
Moves the Intel wired LAN drivers into drivers/net/ethernet/intel/ and
the necessary Kconfig and Makefile changes.
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_sriov.c')
-rw-r--r-- | drivers/net/ixgbe/ixgbe_sriov.c | 687 |
1 files changed, 0 insertions, 687 deletions
diff --git a/drivers/net/ixgbe/ixgbe_sriov.c b/drivers/net/ixgbe/ixgbe_sriov.c deleted file mode 100644 index d99d01e21326..000000000000 --- a/drivers/net/ixgbe/ixgbe_sriov.c +++ /dev/null @@ -1,687 +0,0 @@ -/******************************************************************************* - - Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2011 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; -} - -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 == false) - 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) -{ - 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_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) { - 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); - - /* 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"); - - /* 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; - 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, 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: - 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 { - retval = ixgbe_set_vf_vlan(adapter, add, vid, vf); - } - break; - case IXGBE_VF_SET_MACVLAN: - index = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >> - IXGBE_VT_MSGINFO_SHIFT; - /* - * 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->antispoofing_enabled) { - hw->mac.ops.set_mac_anti_spoofing(hw, false, - adapter->num_vfs); - hw->mac.ops.set_vlan_anti_spoofing(hw, false, vf); - adapter->antispoofing_enabled = false; - } - retval = ixgbe_set_vf_macvlan(adapter, vf, index, - (unsigned char *)(&msgbuf[1])); - 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->antispoofing_enabled) - hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf); - 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); - adapter->vfinfo[vf].pf_vlan = 0; - adapter->vfinfo[vf].pf_qos = 0; - } -out: - return err; -} - -static int ixgbe_link_mbps(int internal_link_speed) -{ - switch (internal_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_hw *hw, int vf, int tx_rate, - int link_speed) -{ - int rf_dec, rf_int; - u32 bcnrc_val; - - if (tx_rate != 0) { - /* Calculate the rate factor values to set */ - rf_int = link_speed / tx_rate; - rf_dec = (link_speed - (rf_int * tx_rate)); - rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate; - - bcnrc_val = IXGBE_RTTBCNRC_RS_ENA; - bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) & - IXGBE_RTTBCNRC_RF_INT_MASK); - bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK); - } else { - bcnrc_val = 0; - } - - IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */ - /* - * 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; - } - - IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val); -} - -void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter) -{ - int actual_link_speed, i; - bool reset_rate = false; - - /* VF Tx rate limit was not set */ - if (adapter->vf_rate_link_speed == 0) - return; - - actual_link_speed = ixgbe_link_mbps(adapter->link_speed); - if (actual_link_speed != adapter->vf_rate_link_speed) { - reset_rate = true; - 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 (reset_rate) - adapter->vfinfo[i].tx_rate = 0; - - ixgbe_set_vf_rate_limit(&adapter->hw, i, - adapter->vfinfo[i].tx_rate, - actual_link_speed); - } -} - -int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) -{ - struct ixgbe_adapter *adapter = netdev_priv(netdev); - struct ixgbe_hw *hw = &adapter->hw; - int actual_link_speed; - - actual_link_speed = ixgbe_link_mbps(adapter->link_speed); - if ((vf >= adapter->num_vfs) || (!adapter->link_up) || - (tx_rate > actual_link_speed) || (actual_link_speed != 10000) || - ((tx_rate != 0) && (tx_rate <= 10))) - /* rate limit cannot be set to 10Mb or less in 10Gb adapters */ - return -EINVAL; - - adapter->vf_rate_link_speed = actual_link_speed; - adapter->vfinfo[vf].tx_rate = (u16)tx_rate; - ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed); - - 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; - return 0; -} |