diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2009-10-27 15:53:45 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-28 08:20:35 (GMT) |
| commit | d4960307ea63a5625a175cc2d7b192e68e6b4fba (patch) | |
| tree | 13df04dc963f3ed865d78f74c3aabb94da0bfe07 /drivers | |
| parent | 06cf2666c7f5cc4ba4bf2687d041c61ada76fa3c (diff) | |
| download | linux-fsl-qoriq-d4960307ea63a5625a175cc2d7b192e68e6b4fba.tar.xz | |
igb: delay VF reset notification until after interrupts are enabed
This update delays the VF reset notification until after interrupts are
enabled. Otherwise there is a chance of having the VF try to reset itself too
soon and being ignored by the PF as a result.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/igb/igb_main.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index ea05604..24a119e 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -1165,6 +1165,13 @@ int igb_up(struct igb_adapter *adapter) rd32(E1000_ICR); igb_irq_enable(adapter); + /* notify VFs that reset has been completed */ + if (adapter->vfs_allocated_count) { + u32 reg_data = rd32(E1000_CTRL_EXT); + reg_data |= E1000_CTRL_EXT_PFRSTD; + wr32(E1000_CTRL_EXT, reg_data); + } + netif_tx_start_all_queues(adapter->netdev); /* Fire a link change interrupt to start the watchdog. */ @@ -1948,6 +1955,13 @@ static int igb_open(struct net_device *netdev) igb_irq_enable(adapter); + /* notify VFs that reset has been completed */ + if (adapter->vfs_allocated_count) { + u32 reg_data = rd32(E1000_CTRL_EXT); + reg_data |= E1000_CTRL_EXT_PFRSTD; + wr32(E1000_CTRL_EXT, reg_data); + } + netif_tx_start_all_queues(netdev); /* Fire a link status change interrupt to start the watchdog. */ @@ -5785,19 +5799,18 @@ static int igb_set_vf_mac(struct igb_adapter *adapter, static void igb_vmm_control(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; - u32 reg_data; - if (!adapter->vfs_allocated_count) + /* replication is not supported for 82575 */ + if (hw->mac.type == e1000_82575) return; - /* VF's need PF reset indication before they - * can send/receive mail */ - reg_data = rd32(E1000_CTRL_EXT); - reg_data |= E1000_CTRL_EXT_PFRSTD; - wr32(E1000_CTRL_EXT, reg_data); - - igb_vmdq_set_loopback_pf(hw, true); - igb_vmdq_set_replication_pf(hw, true); + if (adapter->vfs_allocated_count) { + igb_vmdq_set_loopback_pf(hw, true); + igb_vmdq_set_replication_pf(hw, true); + } else { + igb_vmdq_set_loopback_pf(hw, false); + igb_vmdq_set_replication_pf(hw, false); + } } /* igb_main.c */ |