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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue 

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-03-20

This series contains updates to ixgb, e1000e, igb and igbvf.

Eliezer and Todd provide patches to fix a potential issue found during code
inspection.  When bringing down an interface netif_carrier_off() should
be one of the first things we do, since this will prevent the stack from
queueing more packets to this interface.

Yanir provides a fix for e1000e that was found in validating i219,
where the call to e1000e_write_protect_nvm_ich8lan() is no longer
supported in newer hardware.  Access to these registers causes a
system freeze in early steppings and is ignored in later steppings.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-03-20 21:40:47 -04:00
parent c6f15070e7 784401bfc0
commit df814d96ed
4 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/net/ethernet/intel/e1000e/netdev.c
View File

@ -4084,6 +4084,8 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
*/
set_bit(__E1000_DOWN, &adapter->state);
netif_carrier_off(netdev);
/* disable receives in the hardware */
rctl = er32(RCTL);
if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
@ -4108,8 +4110,6 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
netif_carrier_off(netdev);
spin_lock(&adapter->stats64_lock);
e1000e_update_stats(adapter);
spin_unlock(&adapter->stats64_lock);
@ -6874,7 +6874,8 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_hw_init;
if ((adapter->flags & FLAG_IS_ICH) &&
(adapter->flags & FLAG_READ_ONLY_NVM))
(adapter->flags & FLAG_READ_ONLY_NVM) &&
(hw->mac.type < e1000_pch_spt))
e1000e_write_protect_nvm_ich8lan(&adapter->hw);
hw->mac.ops.get_bus_info(&adapter->hw);

4
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -1776,6 +1776,7 @@ void igb_down(struct igb_adapter *adapter)
wr32(E1000_RCTL, rctl & ~E1000_RCTL_EN);
/* flush and sleep below */
netif_carrier_off(netdev);
netif_tx_stop_all_queues(netdev);
/* disable transmits in the hardware */
@ -1797,12 +1798,9 @@ void igb_down(struct igb_adapter *adapter)
}
}
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
netif_carrier_off(netdev);
/* record the stats before reset*/
spin_lock(&adapter->stats64_lock);
igb_update_stats(adapter, &adapter->stats64);

3
drivers/net/ethernet/intel/igbvf/netdev.c
View File

@ -1519,6 +1519,7 @@ void igbvf_down(struct igbvf_adapter *adapter)
rxdctl = er32(RXDCTL(0));
ew32(RXDCTL(0), rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
/* disable transmits in the hardware */
@ -1535,8 +1536,6 @@ void igbvf_down(struct igbvf_adapter *adapter)
del_timer_sync(&adapter->watchdog_timer);
netif_carrier_off(netdev);
/* record the stats before reset*/
igbvf_update_stats(adapter);

3
drivers/net/ethernet/intel/ixgb/ixgb_main.c
View File

@ -285,6 +285,8 @@ ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog)
/* prevent the interrupt handler from restarting watchdog */
set_bit(__IXGB_DOWN, &adapter->flags);
netif_carrier_off(netdev);
napi_disable(&adapter->napi);
/* waiting for NAPI to complete can re-enable interrupts */
ixgb_irq_disable(adapter);
@ -298,7 +300,6 @@ ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog)
adapter->link_speed = 0;
adapter->link_duplex = 0;
netif_carrier_off(netdev);
netif_stop_queue(netdev);
ixgb_reset(adapter);