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cxgb3: disable high freq non-data interrupts

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Under RX pressure, The HW might generate a high load of interrupts
to signal mac fifo or free lists overflow.
Disable the interrupts, and poll the relevant status bits
to maintain stats.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Divy Le Ray
2009-03-12 21:14:09 +00:00
committed by David S. Miller
parent 42c8ea17e8
commit fc88219601
4 changed files with 86 additions and 5 deletions
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3
drivers/net/cxgb3/sge.c
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@@ -2725,7 +2725,8 @@ irq_handler_t t3_intr_handler(struct adapter *adap, int polling)
*/
void t3_sge_err_intr_handler(struct adapter *adapter)
{
unsigned int v, status = t3_read_reg(adapter, A_SG_INT_CAUSE);
unsigned int v, status = t3_read_reg(adapter, A_SG_INT_CAUSE) &
~F_FLEMPTY;
if (status & SGE_PARERR)
CH_ALERT(adapter, "SGE parity error (0x%x)\n",