diff options
| author | Greg Rose <gregory.v.rose@intel.com> | 2010-01-22 22:46:40 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-23 01:13:55 -0800 |
| commit | 767081adbd920ce93e3f1cbe797d0631637f92b3 (patch) | |
| tree | ac2abe391813533691229513fb89dbcfe4d4a0ea /drivers/net/ixgbe/ixgbe_main.c | |
| parent | c9205697c7527173c8f8bfa9f8c9dabdbced3c49 (diff) | |
ixgbe: Improve reset coordination between the PF and the VF
Inadequate coordination between the PF driver and the VF driver results
in tx hangs in the VF driver when you perform certain actions that will
lead to a re-init of the PF. Add feature to notify active VFs when the PF
is about to re-initialize so that the VFs can take appropriate action.
Signed-off-by: Greg Rose <gregory.v.rose@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/net/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index b96afd98fa3..ee41d331a35 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); |