leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

igb: only disable/enable interrupt bits for igb physical function

Browse Source 
The igb_irq_disable/enable calls were causing virtual functions associated
with the igb physical function to have their interrupts disabled.  In order
to prevent this from occuring we should only clear/set the bits related to
the physical function.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-09-03 14:49:15 +00:00 committed by David S. Miller
parent ff41f8dcc6
commit 2dfd121265
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/net/igb/igb_main.c
View File

@ -821,9 +821,11 @@ static void igb_irq_disable(struct igb_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
if (adapter->msix_entries) {
wr32(E1000_EIAM, 0);
wr32(E1000_EIMC, ~0);
wr32(E1000_EIAC, 0);
u32 regval = rd32(E1000_EIAM);
wr32(E1000_EIAM, regval & ~adapter->eims_enable_mask);
wr32(E1000_EIMC, adapter->eims_enable_mask);
regval = rd32(E1000_EIAC);
wr32(E1000_EIAC, regval & ~adapter->eims_enable_mask);
}
wr32(E1000_IAM, 0);
@ -841,8 +843,10 @@ static void igb_irq_enable(struct igb_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
if (adapter->msix_entries) {
wr32(E1000_EIAC, adapter->eims_enable_mask);
wr32(E1000_EIAM, adapter->eims_enable_mask);
u32 regval = rd32(E1000_EIAC);
wr32(E1000_EIAC, regval | adapter->eims_enable_mask);
regval = rd32(E1000_EIAM);
wr32(E1000_EIAM, regval | adapter->eims_enable_mask);
wr32(E1000_EIMS, adapter->eims_enable_mask);
if (adapter->vfs_allocated_count)
wr32(E1000_MBVFIMR, 0xFF);