[net-next-2.6.git] / drivers / net / ixgbe / ixgbe_sriov.c

/*******************************************************************************

  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 net_device *netdev = pci_get_drvdata(pdev);
	struct ixgbe_adapter *adapter = netdev_priv(netdev);
	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;
}
Commit	Line	Data
17367270 GR	1	/*******************************************************************************
	2
	3	Intel 10 Gigabit PCI Express Linux driver
3a338cbb	4	Copyright(c) 1999 - 2010 Intel Corporation.
17367270 GR	5
	6	This program is free software; you can redistribute it and/or modify it
	7	under the terms and conditions of the GNU General Public License,
	8	version 2, as published by the Free Software Foundation.
	9
	10	This program is distributed in the hope it will be useful, but WITHOUT
	11	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	more details.
	14
	15	You should have received a copy of the GNU General Public License along with
	16	this program; if not, write to the Free Software Foundation, Inc.,
	17	51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	18
	19	The full GNU General Public License is included in this distribution in
	20	the file called "COPYING".
	21
	22	Contact Information:
	23	e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
	24	Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
	25
	26	*******************************************************************************/
	27
17367270 GR	28	#include <linux/types.h>
	29	#include <linux/module.h>
	30	#include <linux/pci.h>
	31	#include <linux/netdevice.h>
	32	#include <linux/vmalloc.h>
	33	#include <linux/string.h>
	34	#include <linux/in.h>
	35	#include <linux/ip.h>
	36	#include <linux/tcp.h>
	37	#include <linux/ipv6.h>
	38	#ifdef NETIF_F_HW_VLAN_TX
	39	#include <linux/if_vlan.h>
	40	#endif
	41
	42	#include "ixgbe.h"
	43
	44	#include "ixgbe_sriov.h"
	45
5d5b7c39 ET	46	static int ixgbe_set_vf_multicasts(struct ixgbe_adapter *adapter,
5d5b7c39 ET	47	int entries, u16 *hash_list, u32 vf)
17367270 GR	48	{
17367270 GR	49	struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
8a07a22d	50	struct ixgbe_hw *hw = &adapter->hw;
17367270	51	int i;
8a07a22d GR	52	u32 vector_bit;
	53	u32 vector_reg;
	54	u32 mta_reg;
17367270 GR	55
	56	/* only so many hash values supported */
	57	entries = min(entries, IXGBE_MAX_VF_MC_ENTRIES);
	58
	59	/*
	60	* salt away the number of multi cast addresses assigned
	61	* to this VF for later use to restore when the PF multi cast
	62	* list changes
	63	*/
	64	vfinfo->num_vf_mc_hashes = entries;
	65
	66	/*
	67	* VFs are limited to using the MTA hash table for their multicast
	68	* addresses
	69	*/
	70	for (i = 0; i < entries; i++) {
e81a1ba8	71	vfinfo->vf_mc_hashes[i] = hash_list[i];
17367270 GR	72	}
17367270 GR	73
8a07a22d GR	74	for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
	75	vector_reg = (vfinfo->vf_mc_hashes[i] >> 5) & 0x7F;
	76	vector_bit = vfinfo->vf_mc_hashes[i] & 0x1F;
	77	mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
	78	mta_reg \|= (1 << vector_bit);
	79	IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
	80	}
17367270 GR	81
	82	return 0;
	83	}
	84
	85	void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
	86	{
	87	struct ixgbe_hw *hw = &adapter->hw;
	88	struct vf_data_storage *vfinfo;
	89	int i, j;
	90	u32 vector_bit;
	91	u32 vector_reg;
	92	u32 mta_reg;
	93
	94	for (i = 0; i < adapter->num_vfs; i++) {
	95	vfinfo = &adapter->vfinfo[i];
	96	for (j = 0; j < vfinfo->num_vf_mc_hashes; j++) {
	97	hw->addr_ctrl.mta_in_use++;
	98	vector_reg = (vfinfo->vf_mc_hashes[j] >> 5) & 0x7F;
	99	vector_bit = vfinfo->vf_mc_hashes[j] & 0x1F;
	100	mta_reg = IXGBE_READ_REG(hw, IXGBE_MTA(vector_reg));
	101	mta_reg \|= (1 << vector_bit);
	102	IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
	103	}
	104	}
	105	}
	106
5d5b7c39 ET	107	static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
5d5b7c39 ET	108	u32 vf)
17367270	109	{
17367270 GR	110	return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
	111	}
	112
	113
5d5b7c39	114	static void ixgbe_set_vmolr(struct ixgbe_hw *hw, u32 vf, bool aupe)
17367270 GR	115	{
17367270 GR	116	u32 vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
f0412776	117	vmolr \|= (IXGBE_VMOLR_ROMPE \|
17367270 GR	118	IXGBE_VMOLR_ROPE \|
17367270 GR	119	IXGBE_VMOLR_BAM);
f0412776 GR	120	if (aupe)
	121	vmolr \|= IXGBE_VMOLR_AUPE;
	122	else
	123	vmolr &= ~IXGBE_VMOLR_AUPE;
17367270 GR	124	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
	125	}
	126
7f01648a GR	127	static void ixgbe_set_vmvir(struct ixgbe_adapter *adapter, u32 vid, u32 vf)
	128	{
	129	struct ixgbe_hw *hw = &adapter->hw;
	130
	131	if (vid)
	132	IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf),
	133	(vid \| IXGBE_VMVIR_VLANA_DEFAULT));
	134	else
	135	IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
	136	}
	137
5d5b7c39	138	static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
17367270 GR	139	{
17367270 GR	140	struct ixgbe_hw *hw = &adapter->hw;
2850062a	141	int rar_entry = hw->mac.num_rar_entries - (vf + 1);
17367270 GR	142
17367270 GR	143	/* reset offloads to defaults */
7f01648a GR	144	if (adapter->vfinfo[vf].pf_vlan) {
	145	ixgbe_set_vf_vlan(adapter, true,
	146	adapter->vfinfo[vf].pf_vlan, vf);
	147	ixgbe_set_vmvir(adapter,
	148	(adapter->vfinfo[vf].pf_vlan \|
	149	(adapter->vfinfo[vf].pf_qos <<
	150	VLAN_PRIO_SHIFT)), vf);
	151	ixgbe_set_vmolr(hw, vf, false);
	152	} else {
	153	ixgbe_set_vmvir(adapter, 0, vf);
	154	ixgbe_set_vmolr(hw, vf, true);
	155	}
17367270 GR	156
	157	/* reset multicast table array for vf */
	158	adapter->vfinfo[vf].num_vf_mc_hashes = 0;
	159
	160	/* Flush and reset the mta with the new values */
	161	ixgbe_set_rx_mode(adapter->netdev);
	162
2850062a	163	hw->mac.ops.clear_rar(hw, rar_entry);
17367270 GR	164	}
17367270 GR	165
5d5b7c39 ET	166	static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
5d5b7c39 ET	167	int vf, unsigned char *mac_addr)
17367270 GR	168	{
17367270 GR	169	struct ixgbe_hw *hw = &adapter->hw;
2850062a	170	int rar_entry = hw->mac.num_rar_entries - (vf + 1);
17367270 GR	171
17367270 GR	172	memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
2850062a	173	hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
17367270 GR	174
	175	return 0;
	176	}
	177
	178	int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
	179	{
	180	unsigned char vf_mac_addr[6];
	181	struct net_device *netdev = pci_get_drvdata(pdev);
	182	struct ixgbe_adapter *adapter = netdev_priv(netdev);
	183	unsigned int vfn = (event_mask & 0x3f);
	184
	185	bool enable = ((event_mask & 0x10000000U) != 0);
	186
	187	if (enable) {
	188	random_ether_addr(vf_mac_addr);
396e799c ET	189	e_info(probe, "IOV: VF %d is enabled MAC %pM\n",
396e799c ET	190	vfn, vf_mac_addr);
17367270 GR	191	/*
	192	* Store away the VF "permananet" MAC address, it will ask
	193	* for it later.
	194	*/
	195	memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
	196	}
	197
	198	return 0;
	199	}
	200
5d5b7c39	201	static inline void ixgbe_vf_reset_msg(struct ixgbe_adapter *adapter, u32 vf)
17367270 GR	202	{
	203	struct ixgbe_hw *hw = &adapter->hw;
	204	u32 reg;
	205	u32 reg_offset, vf_shift;
	206
	207	vf_shift = vf % 32;
	208	reg_offset = vf / 32;
	209
	210	/* enable transmit and receive for vf */
	211	reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
	212	reg \|= (reg \| (1 << vf_shift));
	213	IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
	214
	215	reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
	216	reg \|= (reg \| (1 << vf_shift));
	217	IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
	218
	219	ixgbe_vf_reset_event(adapter, vf);
	220	}
	221
	222	static int ixgbe_rcv_msg_from_vf(struct ixgbe_adapter *adapter, u32 vf)
	223	{
	224	u32 mbx_size = IXGBE_VFMAILBOX_SIZE;
	225	u32 msgbuf[mbx_size];
	226	struct ixgbe_hw *hw = &adapter->hw;
	227	s32 retval;
	228	int entries;
	229	u16 *hash_list;
	230	int add, vid;
	231
	232	retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
	233
	234	if (retval)
849c4542	235	pr_err("Error receiving message from VF\n");
17367270 GR	236
	237	/* this is a message we already processed, do nothing */
	238	if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK \| IXGBE_VT_MSGTYPE_NACK))
	239	return retval;
	240
	241	/*
	242	* until the vf completes a virtual function reset it should not be
	243	* allowed to start any configuration.
	244	*/
	245
	246	if (msgbuf[0] == IXGBE_VF_RESET) {
	247	unsigned char *vf_mac = adapter->vfinfo[vf].vf_mac_addresses;
	248	u8 addr = (u8 )(&msgbuf[1]);
396e799c	249	e_info(probe, "VF Reset msg received from vf %d\n", vf);
17367270 GR	250	adapter->vfinfo[vf].clear_to_send = false;
	251	ixgbe_vf_reset_msg(adapter, vf);
	252	adapter->vfinfo[vf].clear_to_send = true;
	253
	254	/* reply to reset with ack and vf mac address */
	255	msgbuf[0] = IXGBE_VF_RESET \| IXGBE_VT_MSGTYPE_ACK;
	256	memcpy(addr, vf_mac, IXGBE_ETH_LENGTH_OF_ADDRESS);
	257	/*
	258	* Piggyback the multicast filter type so VF can compute the
	259	* correct vectors
	260	*/
	261	msgbuf[3] = hw->mac.mc_filter_type;
	262	ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
	263
	264	return retval;
	265	}
	266
	267	if (!adapter->vfinfo[vf].clear_to_send) {
	268	msgbuf[0] \|= IXGBE_VT_MSGTYPE_NACK;
	269	ixgbe_write_mbx(hw, msgbuf, 1, vf);
	270	return retval;
	271	}
	272
	273	switch ((msgbuf[0] & 0xFFFF)) {
	274	case IXGBE_VF_SET_MAC_ADDR:
	275	{
	276	u8 new_mac = ((u8 )(&msgbuf[1]));
7f01648a GR	277	if (is_valid_ether_addr(new_mac) &&
7f01648a GR	278	!adapter->vfinfo[vf].pf_set_mac)
17367270 GR	279	ixgbe_set_vf_mac(adapter, vf, new_mac);
17367270 GR	280	else
7f01648a GR	281	ixgbe_set_vf_mac(adapter,
7f01648a GR	282	vf, adapter->vfinfo[vf].vf_mac_addresses);
17367270 GR	283	}
	284	break;
	285	case IXGBE_VF_SET_MULTICAST:
	286	entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
	287	>> IXGBE_VT_MSGINFO_SHIFT;
	288	hash_list = (u16 *)&msgbuf[1];
	289	retval = ixgbe_set_vf_multicasts(adapter, entries,
	290	hash_list, vf);
	291	break;
	292	case IXGBE_VF_SET_LPE:
	293	WARN_ON((msgbuf[0] & 0xFFFF) == IXGBE_VF_SET_LPE);
	294	break;
	295	case IXGBE_VF_SET_VLAN:
	296	add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
	297	>> IXGBE_VT_MSGINFO_SHIFT;
	298	vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
	299	retval = ixgbe_set_vf_vlan(adapter, add, vid, vf);
	300	break;
	301	default:
396e799c	302	e_err(drv, "Unhandled Msg %8.8x\n", msgbuf[0]);
17367270 GR	303	retval = IXGBE_ERR_MBX;
	304	break;
	305	}
	306
	307	/* notify the VF of the results of what it sent us */
	308	if (retval)
	309	msgbuf[0] \|= IXGBE_VT_MSGTYPE_NACK;
	310	else
	311	msgbuf[0] \|= IXGBE_VT_MSGTYPE_ACK;
	312
	313	msgbuf[0] \|= IXGBE_VT_MSGTYPE_CTS;
	314
	315	ixgbe_write_mbx(hw, msgbuf, 1, vf);
	316
	317	return retval;
	318	}
	319
	320	static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf)
	321	{
	322	struct ixgbe_hw *hw = &adapter->hw;
	323	u32 msg = IXGBE_VT_MSGTYPE_NACK;
	324
	325	/* if device isn't clear to send it shouldn't be reading either */
	326	if (!adapter->vfinfo[vf].clear_to_send)
	327	ixgbe_write_mbx(hw, &msg, 1, vf);
	328	}
	329
	330	void ixgbe_msg_task(struct ixgbe_adapter *adapter)
	331	{
	332	struct ixgbe_hw *hw = &adapter->hw;
	333	u32 vf;
	334
	335	for (vf = 0; vf < adapter->num_vfs; vf++) {
	336	/* process any reset requests */
	337	if (!ixgbe_check_for_rst(hw, vf))
	338	ixgbe_vf_reset_event(adapter, vf);
	339
	340	/* process any messages pending */
	341	if (!ixgbe_check_for_msg(hw, vf))
	342	ixgbe_rcv_msg_from_vf(adapter, vf);
	343
	344	/* process any acks */
	345	if (!ixgbe_check_for_ack(hw, vf))
	346	ixgbe_rcv_ack_from_vf(adapter, vf);
	347	}
	348	}
	349
767081ad GR	350	void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
	351	{
	352	struct ixgbe_hw *hw = &adapter->hw;
	353
	354	/* disable transmit and receive for all vfs */
	355	IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
	356	IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
	357
	358	IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
	359	IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
	360	}
	361
	362	void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
	363	{
	364	struct ixgbe_hw *hw = &adapter->hw;
	365	u32 ping;
	366	int i;
	367
	368	for (i = 0 ; i < adapter->num_vfs; i++) {
	369	ping = IXGBE_PF_CONTROL_MSG;
	370	if (adapter->vfinfo[i].clear_to_send)
	371	ping \|= IXGBE_VT_MSGTYPE_CTS;
	372	ixgbe_write_mbx(hw, &ping, 1, i);
	373	}
	374	}
	375
7f01648a GR	376	int ixgbe_ndo_set_vf_mac(struct net_device netdev, int vf, u8 mac)
	377	{
	378	struct ixgbe_adapter *adapter = netdev_priv(netdev);
	379	if (!is_valid_ether_addr(mac) \|\| (vf >= adapter->num_vfs))
	380	return -EINVAL;
	381	adapter->vfinfo[vf].pf_set_mac = true;
	382	dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf);
	383	dev_info(&adapter->pdev->dev, "Reload the VF driver to make this"
	384	" change effective.");
	385	if (test_bit(__IXGBE_DOWN, &adapter->state)) {
	386	dev_warn(&adapter->pdev->dev, "The VF MAC address has been set,"
	387	" but the PF device is not up.\n");
	388	dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
	389	" attempting to use the VF device.\n");
	390	}
	391	return ixgbe_set_vf_mac(adapter, vf, mac);
	392	}
	393
	394	int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
	395	{
	396	int err = 0;
	397	struct ixgbe_adapter *adapter = netdev_priv(netdev);
	398
	399	if ((vf >= adapter->num_vfs) \|\| (vlan > 4095) \|\| (qos > 7))
	400	return -EINVAL;
	401	if (vlan \|\| qos) {
	402	err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
	403	if (err)
	404	goto out;
	405	ixgbe_set_vmvir(adapter, vlan \| (qos << VLAN_PRIO_SHIFT), vf);
	406	ixgbe_set_vmolr(&adapter->hw, vf, false);
	407	adapter->vfinfo[vf].pf_vlan = vlan;
	408	adapter->vfinfo[vf].pf_qos = qos;
	409	dev_info(&adapter->pdev->dev,
	410	"Setting VLAN %d, QOS 0x%x on VF %d\n", vlan, qos, vf);
	411	if (test_bit(__IXGBE_DOWN, &adapter->state)) {
	412	dev_warn(&adapter->pdev->dev,
	413	"The VF VLAN has been set,"
	414	" but the PF device is not up.\n");
	415	dev_warn(&adapter->pdev->dev,
	416	"Bring the PF device up before"
	417	" attempting to use the VF device.\n");
	418	}
	419	} else {
	420	err = ixgbe_set_vf_vlan(adapter, false,
	421	adapter->vfinfo[vf].pf_vlan, vf);
	422	ixgbe_set_vmvir(adapter, vlan, vf);
	423	ixgbe_set_vmolr(&adapter->hw, vf, true);
	424	adapter->vfinfo[vf].pf_vlan = 0;
	425	adapter->vfinfo[vf].pf_qos = 0;
	426	}
	427	out:
	428	return err;
	429	}
	430
	431	int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
	432	{
	433	return -EOPNOTSUPP;
	434	}
	435
	436	int ixgbe_ndo_get_vf_config(struct net_device *netdev,
	437	int vf, struct ifla_vf_info *ivi)
	438	{
	439	struct ixgbe_adapter *adapter = netdev_priv(netdev);
440	if (vf >= adapter->num_vfs)
441	return -EINVAL;
442	ivi->vf = vf;
443	memcpy(&ivi->mac, adapter->vfinfo[vf].vf_mac_addresses, ETH_ALEN);
444	ivi->tx_rate = 0;
445	ivi->vlan = adapter->vfinfo[vf].pf_vlan;
446	ivi->qos = adapter->vfinfo[vf].pf_qos;
447	return 0;
448	}