igb: use correct bits to identify if managability is enabled
igb was previously checking the wrong bits in the MANC register to determine
if managability was enabled. As a result it was incorrectly powering down and
resetting the phy when it didn't need to.
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>
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c
index 2a8a886..be8d010 100644
--- a/drivers/net/igb/e1000_mac.c
+++ b/drivers/net/igb/e1000_mac.c
@@ -1367,7 +1367,8 @@
* igb_enable_mng_pass_thru - Enable processing of ARP's
* @hw: pointer to the HW structure
*
- * Verifies the hardware needs to allow ARPs to be processed by the host.
+ * Verifies the hardware needs to leave interface enabled so that frames can
+ * be directed to and from the management interface.
**/
bool igb_enable_mng_pass_thru(struct e1000_hw *hw)
{
@@ -1380,8 +1381,7 @@
manc = rd32(E1000_MANC);
- if (!(manc & E1000_MANC_RCV_TCO_EN) ||
- !(manc & E1000_MANC_EN_MAC_ADDR_FILTER))
+ if (!(manc & E1000_MANC_RCV_TCO_EN))
goto out;
if (hw->mac.arc_subsystem_valid) {