diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c index 0dbbd2befd4d..32ac1e020d91 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c @@ -207,6 +207,7 @@ void ixgbe_enable_sriov(struct ixgbe_adapter *adapter, unsigned int max_vfs) int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) { unsigned int num_vfs = adapter->num_vfs, vf; + struct ixgbe_hw *hw = &adapter->hw; unsigned long flags; int rss; @@ -237,6 +238,9 @@ int ixgbe_disable_sriov(struct ixgbe_adapter *adapter) if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) return 0; + if (hw->mac.ops.disable_mdd) + hw->mac.ops.disable_mdd(hw); + #ifdef CONFIG_PCI_IOV /* * If our VFs are assigned we cannot shut down SR-IOV @@ -702,7 +706,7 @@ static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf) u32 reg_val; u32 queue; - /* remove VLAN filters beloning to this VF */ + /* remove VLAN filters belonging to this VF */ ixgbe_clear_vf_vlans(adapter, vf); /* add back PF assigned VLAN or VLAN 0 */ @@ -1353,12 +1357,59 @@ static void ixgbe_rcv_ack_from_vf(struct ixgbe_adapter *adapter, u32 vf) ixgbe_write_mbx(hw, &msg, 1, vf); } +/** + * ixgbe_check_mdd_event - check for MDD event on all VFs + * @adapter: pointer to ixgbe adapter + * + * Return: true if there is a VF on which MDD event occurred, false otherwise. + */ +bool ixgbe_check_mdd_event(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + DECLARE_BITMAP(vf_bitmap, 64); + bool ret = false; + int i; + + if (!hw->mac.ops.handle_mdd) + return false; + + /* Did we have a malicious event */ + bitmap_zero(vf_bitmap, 64); + hw->mac.ops.handle_mdd(hw, vf_bitmap); + + /* Log any blocked queues and release lock */ + for_each_set_bit(i, vf_bitmap, 64) { + dev_warn(&adapter->pdev->dev, + "Malicious event on VF %d tx:%x rx:%x\n", i, + IXGBE_READ_REG(hw, IXGBE_LVMMC_TX), + IXGBE_READ_REG(hw, IXGBE_LVMMC_RX)); + + if (hw->mac.ops.restore_mdd_vf) { + u32 ping; + + hw->mac.ops.restore_mdd_vf(hw, i); + + /* get the VF to rebuild its queues */ + adapter->vfinfo[i].clear_to_send = 0; + ping = IXGBE_PF_CONTROL_MSG | + IXGBE_VT_MSGTYPE_CTS; + ixgbe_write_mbx(hw, &ping, 1, i); + } + + ret = true; + } + + return ret; +} + void ixgbe_msg_task(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; unsigned long flags; u32 vf; + ixgbe_check_mdd_event(adapter); + spin_lock_irqsave(&adapter->vfs_lock, flags); for (vf = 0; vf < adapter->num_vfs; vf++) { /* process any reset requests */ |