From aa5aec888585fedcda7cfffc20f75240ad1cb42d Mon Sep 17 00:00:00 2001 From: Peter P Waskiewicz Jr Date: Tue, 19 May 2009 09:18:34 +0000 Subject: [PATCH] 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 Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_82599.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c index 39d7b64aced7..fef7397accda 100644 --- a/drivers/net/ixgbe/ixgbe_82599.c +++ b/drivers/net/ixgbe/ixgbe_82599.c @@ -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: -- 2.20.1