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ixgbe: Add semaphore access for PHY initialization for 82599 

The SFP+ NIC (device id 0x10fb) needs a semaphore to serialize
PHY access, so our PHY init code must honor that same semaphore.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@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:
Peter P Waskiewicz Jr 2009-05-19 09:18:34 +00:00 committed by David S. Miller
parent 3577aa1bd7
commit aa5aec8885
1 changed files with 12 additions and 0 deletions
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12
drivers/net/ixgbe/ixgbe_82599.c
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@ -109,6 +109,13 @@ s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
if (ret_val != 0)
goto setup_sfp_out;
/* PHY config will finish before releasing the semaphore */
ret_val = ixgbe_acquire_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
if (ret_val != 0) {
ret_val = IXGBE_ERR_SWFW_SYNC;
goto setup_sfp_out;
}
hw->eeprom.ops.read(hw, ++data_offset, &data_value);
while (data_value != 0xffff) {
IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
@ -119,6 +126,11 @@ s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
IXGBE_WRITE_REG(hw, IXGBE_CORECTL, 0x00000102);
IXGBE_WRITE_REG(hw, IXGBE_CORECTL, 0x00000b1d);
IXGBE_WRITE_FLUSH(hw);
/* Release the semaphore */
ixgbe_release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
/* Delay obtaining semaphore again to allow FW access */
msleep(hw->eeprom.semaphore_delay);
}
setup_sfp_out: