From 8151d2948e088c20b7d29c793cf1fd744b6a2699 Mon Sep 17 00:00:00 2001 From: "Williams, Mitch A" Date: Wed, 10 Feb 2010 01:44:24 +0000 Subject: [PATCH] igb: support for VF configuration tools Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/e1000_82575.h | 3 + drivers/net/igb/e1000_regs.h | 1 + drivers/net/igb/igb.h | 3 + drivers/net/igb/igb_main.c | 130 +++++++++++++++++++++++++++++++--- 4 files changed, 126 insertions(+), 11 deletions(-) diff --git a/drivers/net/igb/e1000_82575.h b/drivers/net/igb/e1000_82575.h index d51c9927c819..bb53083ec61f 100644 --- a/drivers/net/igb/e1000_82575.h +++ b/drivers/net/igb/e1000_82575.h @@ -219,6 +219,9 @@ struct e1000_adv_tx_context_desc { #define E1000_VLVF_LVLAN 0x00100000 #define E1000_VLVF_VLANID_ENABLE 0x80000000 +#define E1000_VMVIR_VLANA_DEFAULT 0x40000000 /* Always use default VLAN */ +#define E1000_VMVIR_VLANA_NEVER 0x80000000 /* Never insert VLAN tag */ + #define E1000_IOVCTL 0x05BBC #define E1000_IOVCTL_REUSE_VFQ 0x00000001 diff --git a/drivers/net/igb/e1000_regs.h b/drivers/net/igb/e1000_regs.h index dd4e6ffd29f5..abb7333a1fbf 100644 --- a/drivers/net/igb/e1000_regs.h +++ b/drivers/net/igb/e1000_regs.h @@ -310,6 +310,7 @@ #define E1000_VMOLR(_n) (0x05AD0 + (4 * (_n))) #define E1000_VLVF(_n) (0x05D00 + (4 * (_n))) /* VLAN Virtual Machine * Filter - RW */ +#define E1000_VMVIR(_n) (0x03700 + (4 * (_n))) #define wr32(reg, value) (writel(value, hw->hw_addr + reg)) #define rd32(reg) (readl(hw->hw_addr + reg)) diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h index b1c1eb88893f..83ea11701f45 100644 --- a/drivers/net/igb/igb.h +++ b/drivers/net/igb/igb.h @@ -75,11 +75,14 @@ struct vf_data_storage { u16 vlans_enabled; u32 flags; unsigned long last_nack; + u16 pf_vlan; /* When set, guest VLAN config not allowed. */ + u16 pf_qos; }; #define IGB_VF_FLAG_CTS 0x00000001 /* VF is clear to send data */ #define IGB_VF_FLAG_UNI_PROMISC 0x00000002 /* VF has unicast promisc */ #define IGB_VF_FLAG_MULTI_PROMISC 0x00000004 /* VF has multicast promisc */ +#define IGB_VF_FLAG_PF_SET_MAC 0x00000008 /* PF has set MAC address */ /* RX descriptor control thresholds. * PTHRESH - MAC will consider prefetch if it has fewer than this number of diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 28371d648208..4fe7b0ba6310 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -133,6 +133,12 @@ static void igb_msg_task(struct igb_adapter *); static void igb_vmm_control(struct igb_adapter *); static int igb_set_vf_mac(struct igb_adapter *, int, unsigned char *); static void igb_restore_vf_multicasts(struct igb_adapter *adapter); +static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac); +static int igb_ndo_set_vf_vlan(struct net_device *netdev, + int vf, u16 vlan, u8 qos); +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); #ifdef CONFIG_PM static int igb_suspend(struct pci_dev *, pm_message_t); @@ -1352,6 +1358,10 @@ static const struct net_device_ops igb_netdev_ops = { .ndo_vlan_rx_register = igb_vlan_rx_register, .ndo_vlan_rx_add_vid = igb_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = igb_vlan_rx_kill_vid, + .ndo_set_vf_mac = igb_ndo_set_vf_mac, + .ndo_set_vf_vlan = igb_ndo_set_vf_vlan, + .ndo_set_vf_tx_rate = igb_ndo_set_vf_bw, + .ndo_get_vf_config = igb_ndo_get_vf_config, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = igb_netpoll, #endif @@ -2479,7 +2489,8 @@ static void igb_rlpml_set(struct igb_adapter *adapter) wr32(E1000_RLPML, max_frame_size); } -static inline void igb_set_vmolr(struct igb_adapter *adapter, int vfn) +static inline void igb_set_vmolr(struct igb_adapter *adapter, + int vfn, bool aupe) { struct e1000_hw *hw = &adapter->hw; u32 vmolr; @@ -2492,8 +2503,11 @@ static inline void igb_set_vmolr(struct igb_adapter *adapter, int vfn) return; vmolr = rd32(E1000_VMOLR(vfn)); - vmolr |= E1000_VMOLR_AUPE | /* Accept untagged packets */ - E1000_VMOLR_STRVLAN; /* Strip vlan tags */ + vmolr |= E1000_VMOLR_STRVLAN; /* Strip vlan tags */ + if (aupe) + vmolr |= E1000_VMOLR_AUPE; /* Accept untagged packets */ + else + vmolr &= ~(E1000_VMOLR_AUPE); /* Tagged packets ONLY */ /* clear all bits that might not be set */ vmolr &= ~(E1000_VMOLR_BAM | E1000_VMOLR_RSSE); @@ -2564,7 +2578,7 @@ void igb_configure_rx_ring(struct igb_adapter *adapter, wr32(E1000_SRRCTL(reg_idx), srrctl); /* set filtering for VMDQ pools */ - igb_set_vmolr(adapter, reg_idx & 0x7); + igb_set_vmolr(adapter, reg_idx & 0x7, true); /* enable receive descriptor fetching */ rxdctl = rd32(E1000_RXDCTL(reg_idx)); @@ -4490,10 +4504,57 @@ static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf) reg |= size; wr32(E1000_VMOLR(vf), reg); } - return 0; } } - return -1; + return 0; +} + +static void igb_set_vmvir(struct igb_adapter *adapter, u32 vid, u32 vf) +{ + struct e1000_hw *hw = &adapter->hw; + + if (vid) + wr32(E1000_VMVIR(vf), (vid | E1000_VMVIR_VLANA_DEFAULT)); + else + wr32(E1000_VMVIR(vf), 0); +} + +static int igb_ndo_set_vf_vlan(struct net_device *netdev, + int vf, u16 vlan, u8 qos) +{ + int err = 0; + struct igb_adapter *adapter = netdev_priv(netdev); + + if ((vf >= adapter->vfs_allocated_count) || (vlan > 4095) || (qos > 7)) + return -EINVAL; + if (vlan || qos) { + err = igb_vlvf_set(adapter, vlan, !!vlan, vf); + if (err) + goto out; + igb_set_vmvir(adapter, vlan | (qos << VLAN_PRIO_SHIFT), vf); + igb_set_vmolr(adapter, vf, !vlan); + adapter->vf_data[vf].pf_vlan = vlan; + adapter->vf_data[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(__IGB_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 { + igb_vlvf_set(adapter, adapter->vf_data[vf].pf_vlan, + false, vf); + igb_set_vmvir(adapter, vlan, vf); + igb_set_vmolr(adapter, vf, true); + adapter->vf_data[vf].pf_vlan = 0; + adapter->vf_data[vf].pf_qos = 0; + } +out: + return err; } static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) @@ -4506,15 +4567,21 @@ static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf) { - /* clear all flags */ - adapter->vf_data[vf].flags = 0; + /* clear flags */ + adapter->vf_data[vf].flags &= ~(IGB_VF_FLAG_PF_SET_MAC); adapter->vf_data[vf].last_nack = jiffies; /* reset offloads to defaults */ - igb_set_vmolr(adapter, vf); + igb_set_vmolr(adapter, vf, true); /* reset vlans for device */ igb_clear_vf_vfta(adapter, vf); + if (adapter->vf_data[vf].pf_vlan) + igb_ndo_set_vf_vlan(adapter->netdev, vf, + adapter->vf_data[vf].pf_vlan, + adapter->vf_data[vf].pf_qos); + else + igb_clear_vf_vfta(adapter, vf); /* reset multicast table array for vf */ adapter->vf_data[vf].num_vf_mc_hashes = 0; @@ -4528,7 +4595,8 @@ static void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf) unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses; /* generate a new mac address as we were hotplug removed/added */ - random_ether_addr(vf_mac); + if (!(adapter->vf_data[vf].flags & IGB_VF_FLAG_PF_SET_MAC)) + random_ether_addr(vf_mac); /* process remaining reset events */ igb_vf_reset(adapter, vf); @@ -4641,7 +4709,10 @@ static void igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf) retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf); break; case E1000_VF_SET_VLAN: - retval = igb_set_vf_vlan(adapter, msgbuf, vf); + if (adapter->vf_data[vf].pf_vlan) + retval = -1; + else + retval = igb_set_vf_vlan(adapter, msgbuf, vf); break; default: dev_err(&pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]); @@ -6003,6 +6074,43 @@ static int igb_set_vf_mac(struct igb_adapter *adapter, return 0; } +static int igb_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) +{ + struct igb_adapter *adapter = netdev_priv(netdev); + if (!is_valid_ether_addr(mac) || (vf >= adapter->vfs_allocated_count)) + return -EINVAL; + adapter->vf_data[vf].flags |= IGB_VF_FLAG_PF_SET_MAC; + 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(__IGB_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 igb_set_vf_mac(adapter, vf, mac); +} + +static int igb_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate) +{ + return -EOPNOTSUPP; +} + +static int igb_ndo_get_vf_config(struct net_device *netdev, + int vf, struct ifla_vf_info *ivi) +{ + struct igb_adapter *adapter = netdev_priv(netdev); + if (vf >= adapter->vfs_allocated_count) + return -EINVAL; + ivi->vf = vf; + memcpy(&ivi->mac, adapter->vf_data[vf].vf_mac_addresses, ETH_ALEN); + ivi->tx_rate = 0; + ivi->vlan = adapter->vf_data[vf].pf_vlan; + ivi->qos = adapter->vf_data[vf].pf_qos; + return 0; +} + static void igb_vmm_control(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; -- 2.39.5