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ixgbe: Use VMDq offset to indicate the default pool 

This change makes it so that we can use the VMDq ring feature offset value
to determine the default pool instead of using num_vfs.  The reason for
this change is to avoid issues should we fail to allocate vfinfo but have
pre-existing VFs.  What should happen in this case is that num_vfs will go
to 0, but the VMDq offset will contain the location of the first PF pool.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Sibai Li <Sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
hifive-unleashed-5.1
Alexander Duyck 2012-05-05 05:32:21 +00:00 committed by Jeff Kirsher
parent 769162e38b
commit 1d9c0bfd0f
3 changed files with 21 additions and 19 deletions
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2
drivers/net/ethernet/intel/ixgbe/ixgbe.h
View File

@ -113,7 +113,7 @@
#define IXGBE_MAX_VFTA_ENTRIES 128
#define MAX_EMULATION_MAC_ADDRS 16
#define IXGBE_MAX_PF_MACVLANS 15
#define VMDQ_P(p) ((p) + adapter->num_vfs)
#define VMDQ_P(p) ((p) + adapter->ring_feature[RING_F_VMDQ].offset)
#define IXGBE_82599_VF_DEVICE_ID 0x10ED
#define IXGBE_X540_VF_DEVICE_ID 0x1515

33
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -3118,7 +3118,7 @@ static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter)
psrtype |= 1 << 29;
for (p = 0; p < adapter->num_rx_pools; p++)
IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(adapter->num_vfs + p),
IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(p)),
psrtype);
}
@ -3135,12 +3135,12 @@ static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter)
vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
vmdctl |= IXGBE_VMD_CTL_VMDQ_EN;
vmdctl &= ~IXGBE_VT_CTL_POOL_MASK;
vmdctl |= (adapter->num_vfs << IXGBE_VT_CTL_POOL_SHIFT);
vmdctl |= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT;
vmdctl |= IXGBE_VT_CTL_REPLEN;
IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
vf_shift = adapter->num_vfs % 32;
reg_offset = (adapter->num_vfs >= 32) ? 1 : 0;
vf_shift = VMDQ_P(0) % 32;
reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0;
/* Enable only the PF's pool for Tx/Rx */
IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (~0) << vf_shift);
@ -3150,7 +3150,7 @@ static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
/* Map PF MAC address in RAR Entry 0 to first pool following VFs */
hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs);
hw->mac.ops.set_vmdq(hw, 0, VMDQ_P(0));
/*
* Set up VF register offsets for selected VT Mode,
@ -3310,10 +3310,9 @@ static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
int pool_ndx = adapter->num_vfs;
/* add VID to filter table */
hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, true);
hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), true);
set_bit(vid, adapter->active_vlans);
return 0;
@ -3323,10 +3322,9 @@ static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
int pool_ndx = adapter->num_vfs;
/* remove VID from filter table */
hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, false);
hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), false);
clear_bit(vid, adapter->active_vlans);
return 0;
@ -3444,7 +3442,6 @@ static int ixgbe_write_uc_addr_list(struct net_device *netdev)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
unsigned int vfn = adapter->num_vfs;
unsigned int rar_entries = IXGBE_MAX_PF_MACVLANS;
int count = 0;
@ -3462,7 +3459,7 @@ static int ixgbe_write_uc_addr_list(struct net_device *netdev)
if (!rar_entries)
break;
hw->mac.ops.set_rar(hw, rar_entries--, ha->addr,
vfn, IXGBE_RAH_AV);
VMDQ_P(0), IXGBE_RAH_AV);
count++;
}
}
@ -3536,12 +3533,14 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
vmolr |= IXGBE_VMOLR_ROPE;
}
if (adapter->num_vfs) {
if (adapter->num_vfs)
ixgbe_restore_vf_multicasts(adapter);
vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(adapter->num_vfs)) &
if (hw->mac.type != ixgbe_mac_82598EB) {
vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(VMDQ_P(0))) &
~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE |
IXGBE_VMOLR_ROPE);
IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr);
IXGBE_WRITE_REG(hw, IXGBE_VMOLR(VMDQ_P(0)), vmolr);
}
/* This is useful for sniffing bad packets. */
@ -4120,8 +4119,7 @@ void ixgbe_reset(struct ixgbe_adapter *adapter)
clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state);
/* reprogram the RAR[0] in case user changed it. */
hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs,
IXGBE_RAH_AV);
hw->mac.ops.set_rar(hw, 0, hw->mac.addr, VMDQ_P(0), IXGBE_RAH_AV);
}
/**
@ -6445,8 +6443,7 @@ static int ixgbe_set_mac(struct net_device *netdev, void *p)
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs,
IXGBE_RAH_AV);
hw->mac.ops.set_rar(hw, 0, hw->mac.addr, VMDQ_P(0), IXGBE_RAH_AV);
return 0;
}

5
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
View File

@ -225,6 +225,11 @@ void ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl);
IXGBE_WRITE_FLUSH(hw);
/* Disable VMDq flag so device will be set in VM mode */
if (adapter->ring_feature[RING_F_VMDQ].limit == 1)
adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
adapter->ring_feature[RING_F_VMDQ].offset = 0;
/* take a breather then clean up driver data */
msleep(100);