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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2011-04-22 04:08:14 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-14 18:08:46 -0700 |
| commit | 34cecbbfad5a01050604d5b12fd7d7fb02597dbe (patch) | |
| tree | 590fdb6dbec2747e8ef7b7a1cc513da66a3a765b /drivers/net/ixgbe | |
| parent | f0f9778d043481f3cded693849e3b88b01fbc69b (diff) | |
| download | kernel_samsung_crespo-34cecbbfad5a01050604d5b12fd7d7fb02597dbe.zip kernel_samsung_crespo-34cecbbfad5a01050604d5b12fd7d7fb02597dbe.tar.gz kernel_samsung_crespo-34cecbbfad5a01050604d5b12fd7d7fb02597dbe.tar.bz2 | |
ixgbe: cleanup some minor issues in ixgbe_down()
This patch cleans up two minor issues in ixgbe_down. Specifically it
addresses the fact that the VFs should not be pinged until after interrupts
are disabled otherwise they might still get a response. It also drops the
use of the txdctl temporary variable since the only bit we should be
writing to the TXDCTL registers during a shutdown is the flush bit.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ixgbe')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index dad56e1..4be2af2 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -4182,26 +4182,12 @@ void ixgbe_down(struct ixgbe_adapter *adapter) struct net_device *netdev = adapter->netdev; struct ixgbe_hw *hw = &adapter->hw; u32 rxctrl; - u32 txdctl; int i; int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; /* 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) { - /* 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); - - /* Mark all the VFs as inactive */ - for (i = 0 ; i < adapter->num_vfs; i++) - adapter->vfinfo[i].clear_to_send = 0; - } - /* disable receives */ rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); @@ -4229,6 +4215,19 @@ void ixgbe_down(struct ixgbe_adapter *adapter) del_timer_sync(&adapter->service_timer); + /* disable receive for all VFs and wait one second */ + if (adapter->num_vfs) { + /* 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); + + /* Mark all the VFs as inactive */ + for (i = 0 ; i < adapter->num_vfs; i++) + adapter->vfinfo[i].clear_to_send = 0; + } + /* Cleanup the affinity_hint CPU mask memory and callback */ for (i = 0; i < num_q_vectors; i++) { struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; @@ -4241,11 +4240,10 @@ void ixgbe_down(struct ixgbe_adapter *adapter) /* disable transmits in the hardware now that interrupts are off */ for (i = 0; i < adapter->num_tx_queues; i++) { u8 reg_idx = adapter->tx_ring[i]->reg_idx; - txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); - IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), - (txdctl & ~IXGBE_TXDCTL_ENABLE)); + IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); } - /* Disable the Tx DMA engine on 82599 */ + + /* Disable the Tx DMA engine on 82599 and X540 */ switch (hw->mac.type) { case ixgbe_mac_82599EB: case ixgbe_mac_X540: |