diff options
| author |   Alexander Duyck <alexander.h.duyck@intel.com> | 2009-02-06 23:17:06 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-02-07 02:43:05 -0800 |
| commit | 40a70b3889ea50daa10a7f3468920c1f5483155d (patch) | |
| tree | 7f9037105683dc2efc335a2fe6829ceb69b2edba /drivers | |
| parent | igb: make dev_spec a union and remove dynamic allocation (diff) | |
| download | linux-dev-40a70b3889ea50daa10a7f3468920c1f5483155d.tar.xz linux-dev-40a70b3889ea50daa10a7f3468920c1f5483155d.zip | |
igb: read address from RAH/RAL instead of from EEPROM
Instead of pulling the mac address from EEPROM it is easier to pull it from
the RAL/RAH registers and then just copy it into the address structures.
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/igb/e1000_defines.h | 2 | ||||
| -rw-r--r-- | drivers/net/igb/e1000_nvm.c | 28 |
2 files changed, 13 insertions, 17 deletions
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h index 40d03426c122..54a148923386 100644 --- a/drivers/net/igb/e1000_defines.h +++ b/drivers/net/igb/e1000_defines.h @@ -481,6 +481,8 @@ * manageability enabled, allowing us room for 15 multicast addresses. */ #define E1000_RAH_AV 0x80000000 /* Receive descriptor valid */ +#define E1000_RAL_MAC_ADDR_LEN 4 +#define E1000_RAH_MAC_ADDR_LEN 2 /* Error Codes */ #define E1000_ERR_NVM 1 diff --git a/drivers/net/igb/e1000_nvm.c b/drivers/net/igb/e1000_nvm.c index a84e4e429fa7..5942da107a9c 100644 --- a/drivers/net/igb/e1000_nvm.c +++ b/drivers/net/igb/e1000_nvm.c @@ -515,29 +515,23 @@ out: **/ s32 igb_read_mac_addr(struct e1000_hw *hw) { - s32 ret_val = 0; - u16 offset, nvm_data, i; + u32 rar_high; + u32 rar_low; + u16 i; - for (i = 0; i < ETH_ALEN; i += 2) { - offset = i >> 1; - ret_val = hw->nvm.ops.read_nvm(hw, offset, 1, &nvm_data); - if (ret_val) { - hw_dbg("NVM Read Error\n"); - goto out; - } - hw->mac.perm_addr[i] = (u8)(nvm_data & 0xFF); - hw->mac.perm_addr[i+1] = (u8)(nvm_data >> 8); - } + rar_high = rd32(E1000_RAH(0)); + rar_low = rd32(E1000_RAL(0)); + + for (i = 0; i < E1000_RAL_MAC_ADDR_LEN; i++) + hw->mac.perm_addr[i] = (u8)(rar_low >> (i*8)); - /* Flip last bit of mac address if we're on second port */ - if (hw->bus.func == E1000_FUNC_1) - hw->mac.perm_addr[5] ^= 1; + for (i = 0; i < E1000_RAH_MAC_ADDR_LEN; i++) + hw->mac.perm_addr[i+4] = (u8)(rar_high >> (i*8)); for (i = 0; i < ETH_ALEN; i++) hw->mac.addr[i] = hw->mac.perm_addr[i]; -out: - return ret_val; + return 0; } /** |