3 files changed, 39 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index b96afd98fa3d..ee41d331a35f 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3203,6 +3203,17 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
         /* signal that we are down to the interrupt handler */
         set_bit(__IXGBE_DOWN, &adapter->state);
 
+        /* disable receive for all VFs and wait one second */
+        if (adapter->num_vfs) {
+                for (i = 0 ; i < adapter->num_vfs; i++)
+                        adapter->vfinfo[i].clear_to_send = 0;
+
+                /* ping all the active vfs to let them know we are going down */
+                ixgbe_ping_all_vfs(adapter);
+                /* Disable all VFTE/VFRE TX/RX */
+                ixgbe_disable_tx_rx(adapter);
+        }
+
         /* disable receives */
         rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
         IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN);
diff --git a/drivers/net/ixgbe/ixgbe_sriov.c b/drivers/net/ixgbe/ixgbe_sriov.c
index 74bca74d57c1..d4cd20f30199 100644
--- a/drivers/net/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ixgbe/ixgbe_sriov.c
@@ -334,3 +334,29 @@ void ixgbe_msg_task(struct ixgbe_adapter *adapter)
         }
 }
 
+void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter)
+{
+        struct ixgbe_hw *hw = &adapter->hw;
+
+        /* disable transmit and receive for all vfs */
+        IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0);
+        IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0);
+
+        IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0);
+        IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0);
+}
+
+void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
+{
+        struct ixgbe_hw *hw = &adapter->hw;
+        u32 ping;
+        int i;
+
+        for (i = 0 ; i < adapter->num_vfs; i++) {
+                ping = IXGBE_PF_CONTROL_MSG;
+                if (adapter->vfinfo[i].clear_to_send)
+                        ping |= IXGBE_VT_MSGTYPE_CTS;
+                ixgbe_write_mbx(hw, &ping, 1, i);
+        }
+}
+
diff --git a/drivers/net/ixgbe/ixgbe_sriov.h b/drivers/net/ixgbe/ixgbe_sriov.h
index 664b237eacb9..51d1106c45a1 100644
--- a/drivers/net/ixgbe/ixgbe_sriov.h
+++ b/drivers/net/ixgbe/ixgbe_sriov.h
@@ -39,6 +39,8 @@ void ixgbe_msg_task(struct ixgbe_adapter *adapter);
 int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
                      int vf, unsigned char *mac_addr);
 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask);
+void ixgbe_disable_tx_rx(struct ixgbe_adapter *adapter);
+void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter);
 void ixgbe_dump_registers(struct ixgbe_adapter *adapter);
 
 #endif /* _IXGBE_SRIOV_H_ */