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igb: change how we handle alternate mac addresses

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This patch allows us to treat the alternate mac address as though it is the
physical address on the adapter.  This is accomplished by letting the
alt_mac_address function to only fail on an NVM error.  If no errors occur
and the alternate mac address is not present then RAR0 is read as the
default mac address.

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
2009-10-05 06:34:25 +00:00
committed by David S. Miller
parent 3272686c98
commit 22896639af
3 changed files with 22 additions and 10 deletions
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2
drivers/net/igb/e1000_hw.h
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@@ -54,6 +54,8 @@ struct e1000_hw;
#define E1000_FUNC_0 0
#define E1000_FUNC_1 1
#define E1000_ALT_MAC_ADDRESS_OFFSET_LAN1 3
enum e1000_mac_type {
e1000_undefined = 0,
e1000_82575,