Commit c3278587 authored by Alexander Duyck's avatar Alexander Duyck Committed by Jeff Kirsher

igb: clean up code for setting MAC address

Drop a bunch of hand written byte swapping code in favor of just doing the
byte swapping ourselves.  The registers are little endian registers storing
a big endian value so if we read the MAC address array as little endian
then we will get the CPU registers into the proper layout.
Signed-off-by: default avatarAlexander Duyck <aduyck@mirantis.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 9ce0e8d7
......@@ -7698,15 +7698,14 @@ static void igb_io_resume(struct pci_dev *pdev)
static void igb_rar_set_qsel(struct igb_adapter *adapter, u8 *addr, u32 index,
u8 qsel)
{
u32 rar_low, rar_high;
struct e1000_hw *hw = &adapter->hw;
u32 rar_low, rar_high;
/* HW expects these in little endian so we reverse the byte order
* from network order (big endian) to little endian
* from network order (big endian) to CPU endian
*/
rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) |
((u32) addr[2] << 16) | ((u32) addr[3] << 24));
rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
rar_low = le32_to_cpup((__be32 *)(addr));
rar_high = le16_to_cpup((__be16 *)(addr + 4));
/* Indicate to hardware the Address is Valid. */
rar_high |= E1000_RAH_AV;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment