Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f7ba35da authored by David S. Miller's avatar David S. Miller
Browse files
parents 01b7806c 15e5209f
Loading
Loading
Loading
Loading
+3 −0
Original line number Diff line number Diff line
@@ -72,6 +72,8 @@ struct igb_adapter;
#define IGB_MAX_VF_MC_ENTRIES              30
#define IGB_MAX_VF_FUNCTIONS               8
#define IGB_MAX_VFTA_ENTRIES               128
#define IGB_82576_VF_DEV_ID                0x10CA
#define IGB_I350_VF_DEV_ID                 0x1520

struct vf_data_storage {
	unsigned char vf_mac_addresses[ETH_ALEN];
@@ -83,6 +85,7 @@ struct vf_data_storage {
	u16 pf_vlan; /* When set, guest VLAN config not allowed. */
	u16 pf_qos;
	u16 tx_rate;
	struct pci_dev *vfdev;
};

#define IGB_VF_FLAG_CTS            0x00000001 /* VF is clear to send data */
+147 −30
Original line number Diff line number Diff line
@@ -162,6 +162,9 @@ static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate);
static int igb_ndo_get_vf_config(struct net_device *netdev, int vf,
				 struct ifla_vf_info *ivi);
static void igb_check_vf_rate_limit(struct igb_adapter *);
static int igb_vf_configure(struct igb_adapter *adapter, int vf);
static int igb_find_enabled_vfs(struct igb_adapter *adapter);
static int igb_check_vf_assignment(struct igb_adapter *adapter);

#ifdef CONFIG_PM
static int igb_suspend(struct pci_dev *, pm_message_t);
@@ -2232,8 +2235,12 @@ static void __devexit igb_remove(struct pci_dev *pdev)
	/* reclaim resources allocated to VFs */
	if (adapter->vf_data) {
		/* disable iov and allow time for transactions to clear */
		if (!igb_check_vf_assignment(adapter)) {
			pci_disable_sriov(pdev);
			msleep(500);
		} else {
			dev_info(&pdev->dev, "VF(s) assigned to guests!\n");
		}

		kfree(adapter->vf_data);
		adapter->vf_data = NULL;
@@ -2270,42 +2277,49 @@ static void __devinit igb_probe_vfs(struct igb_adapter * adapter)
{
#ifdef CONFIG_PCI_IOV
	struct pci_dev *pdev = adapter->pdev;
	int old_vfs = igb_find_enabled_vfs(adapter);
	int i;

	if (old_vfs) {
		dev_info(&pdev->dev, "%d pre-allocated VFs found - override "
			 "max_vfs setting of %d\n", old_vfs, max_vfs);
		adapter->vfs_allocated_count = old_vfs;
	}

	if (!adapter->vfs_allocated_count)
		return;

	if (adapter->vfs_allocated_count) {
	adapter->vf_data = kcalloc(adapter->vfs_allocated_count,
		                           sizeof(struct vf_data_storage),
		                           GFP_KERNEL);
				sizeof(struct vf_data_storage), GFP_KERNEL);
	/* if allocation failed then we do not support SR-IOV */
	if (!adapter->vf_data) {
		adapter->vfs_allocated_count = 0;
		dev_err(&pdev->dev, "Unable to allocate memory for VF "
			"Data Storage\n");
		goto out;
	}

	if (!old_vfs) {
		if (pci_enable_sriov(pdev, adapter->vfs_allocated_count))
			goto err_out;
	}
	dev_info(&pdev->dev, "%d VFs allocated\n",
		 adapter->vfs_allocated_count);
	for (i = 0; i < adapter->vfs_allocated_count; i++)
		igb_vf_configure(adapter, i);

	if (pci_enable_sriov(pdev, adapter->vfs_allocated_count)) {
	/* DMA Coalescing is not supported in IOV mode. */
	adapter->flags &= ~IGB_FLAG_DMAC;
	goto out;
err_out:
	kfree(adapter->vf_data);
	adapter->vf_data = NULL;
#endif /* CONFIG_PCI_IOV */
	adapter->vfs_allocated_count = 0;
#ifdef CONFIG_PCI_IOV
	} else {
		unsigned char mac_addr[ETH_ALEN];
		int i;
		dev_info(&pdev->dev, "%d vfs allocated\n",
		         adapter->vfs_allocated_count);
		for (i = 0; i < adapter->vfs_allocated_count; i++) {
			random_ether_addr(mac_addr);
			igb_set_vf_mac(adapter, i, mac_addr);
		}
		/* DMA Coalescing is not supported in IOV mode. */
		if (adapter->flags & IGB_FLAG_DMAC)
			adapter->flags &= ~IGB_FLAG_DMAC;
	}
out:
	return;
#endif /* CONFIG_PCI_IOV */
}


/**
 * igb_init_hw_timer - Initialize hardware timer used with IEEE 1588 timestamp
 * @adapter: board private structure to initialize
@@ -4917,6 +4931,109 @@ static int igb_notify_dca(struct notifier_block *nb, unsigned long event,
}
#endif /* CONFIG_IGB_DCA */

#ifdef CONFIG_PCI_IOV
static int igb_vf_configure(struct igb_adapter *adapter, int vf)
{
	unsigned char mac_addr[ETH_ALEN];
	struct pci_dev *pdev = adapter->pdev;
	struct e1000_hw *hw = &adapter->hw;
	struct pci_dev *pvfdev;
	unsigned int device_id;
	u16 thisvf_devfn;

	random_ether_addr(mac_addr);
	igb_set_vf_mac(adapter, vf, mac_addr);

	switch (adapter->hw.mac.type) {
	case e1000_82576:
		device_id = IGB_82576_VF_DEV_ID;
		/* VF Stride for 82576 is 2 */
		thisvf_devfn = (pdev->devfn + 0x80 + (vf << 1)) |
			(pdev->devfn & 1);
		break;
	case e1000_i350:
		device_id = IGB_I350_VF_DEV_ID;
		/* VF Stride for I350 is 4 */
		thisvf_devfn = (pdev->devfn + 0x80 + (vf << 2)) |
				(pdev->devfn & 3);
		break;
	default:
		device_id = 0;
		thisvf_devfn = 0;
		break;
	}

	pvfdev = pci_get_device(hw->vendor_id, device_id, NULL);
	while (pvfdev) {
		if (pvfdev->devfn == thisvf_devfn)
			break;
		pvfdev = pci_get_device(hw->vendor_id,
					device_id, pvfdev);
	}

	if (pvfdev)
		adapter->vf_data[vf].vfdev = pvfdev;
	else
		dev_err(&pdev->dev,
			"Couldn't find pci dev ptr for VF %4.4x\n",
			thisvf_devfn);
	return pvfdev != NULL;
}

static int igb_find_enabled_vfs(struct igb_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	struct pci_dev *pdev = adapter->pdev;
	struct pci_dev *pvfdev;
	u16 vf_devfn = 0;
	u16 vf_stride;
	unsigned int device_id;
	int vfs_found = 0;

	switch (adapter->hw.mac.type) {
	case e1000_82576:
		device_id = IGB_82576_VF_DEV_ID;
		/* VF Stride for 82576 is 2 */
		vf_stride = 2;
		break;
	case e1000_i350:
		device_id = IGB_I350_VF_DEV_ID;
		/* VF Stride for I350 is 4 */
		vf_stride = 4;
		break;
	default:
		device_id = 0;
		vf_stride = 0;
		break;
	}

	vf_devfn = pdev->devfn + 0x80;
	pvfdev = pci_get_device(hw->vendor_id, device_id, NULL);
	while (pvfdev) {
		if (pvfdev->devfn == vf_devfn)
			vfs_found++;
		vf_devfn += vf_stride;
		pvfdev = pci_get_device(hw->vendor_id,
					device_id, pvfdev);
	}

	return vfs_found;
}

static int igb_check_vf_assignment(struct igb_adapter *adapter)
{
	int i;
	for (i = 0; i < adapter->vfs_allocated_count; i++) {
		if (adapter->vf_data[i].vfdev) {
			if (adapter->vf_data[i].vfdev->dev_flags &
			    PCI_DEV_FLAGS_ASSIGNED)
				return true;
		}
	}
	return false;
}

#endif
static void igb_ping_all_vfs(struct igb_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
+2 −2
Original line number Diff line number Diff line
@@ -102,7 +102,7 @@ static void igbvf_receive_skb(struct igbvf_adapter *adapter,
{
	if (status & E1000_RXD_STAT_VP) {
		u16 vid = le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK;

		if (test_bit(vid, adapter->active_vlans))
			__vlan_hwaccel_put_tag(skb, vid);
	}
	netif_receive_skb(skb);
+2 −1
Original line number Diff line number Diff line
@@ -497,7 +497,8 @@ struct ixgbe_adapter {
	u64 rsc_total_count;
	u64 rsc_total_flush;
	u32 wol;
	u16 eeprom_version;
	u16 eeprom_verh;
	u16 eeprom_verl;
	u16 eeprom_cap;

	int node;
+2 −0
Original line number Diff line number Diff line
@@ -1305,6 +1305,8 @@ static struct ixgbe_mac_operations mac_ops_82598 = {
static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
	.init_params		= &ixgbe_init_eeprom_params_generic,
	.read			= &ixgbe_read_eerd_generic,
	.write			= &ixgbe_write_eeprom_generic,
	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
	.read_buffer		= &ixgbe_read_eerd_buffer_generic,
	.calc_checksum          = &ixgbe_calc_eeprom_checksum_generic,
	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
Loading