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igb: add support for device reset interrupt 

This patch adds support for the global device reset interrupt.  Without
this change the drivers will report tx hangs on all ports when a global
device reset occurs.

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 2010-01-07 17:41:00 +00:00 committed by David S. Miller
parent 959d20bfe8
commit 7f081d405a
1 changed files with 9 additions and 0 deletions
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9
drivers/net/igb/igb_main.c
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@ -4110,6 +4110,9 @@ static irqreturn_t igb_msix_other(int irq, void *data)
u32 icr = rd32(E1000_ICR);
/* reading ICR causes bit 31 of EICR to be cleared */
if (icr & E1000_ICR_DRSTA)
schedule_work(&adapter->reset_task);
if (icr & E1000_ICR_DOUTSYNC) {
/* HW is reporting DMA is out of sync */
adapter->stats.doosync++;
@ -4733,6 +4736,9 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
igb_write_itr(q_vector);
if (icr & E1000_ICR_DRSTA)
schedule_work(&adapter->reset_task);
if (icr & E1000_ICR_DOUTSYNC) {
/* HW is reporting DMA is out of sync */
adapter->stats.doosync++;
@ -4772,6 +4778,9 @@ static irqreturn_t igb_intr(int irq, void *data)
if (!(icr & E1000_ICR_INT_ASSERTED))
return IRQ_NONE;
if (icr & E1000_ICR_DRSTA)
schedule_work(&adapter->reset_task);
if (icr & E1000_ICR_DOUTSYNC) {
/* HW is reporting DMA is out of sync */
adapter->stats.doosync++;