From 669bc48bd9338195d142509b7aa6e05b5b99ed3c Mon Sep 17 00:00:00 2001 From: Wenzhuo Lu Date: Fri, 5 Jun 2015 13:21:58 +0800 Subject: [PATCH] ixgbe/base: restrict EEE to X550em KR backplane This patch sets the setup_EEE function pointer to NULL for the interfaces which do not support EEE (Energy Efficient Ethernet). Currently only the KR backplane interface (0x15AB) supports EEE. Setting this pointer to NULL prevents EEE registers from being incorrectly modified and gives base drivers a flag to check for EEE support. Signed-off-by: Wenzhuo Lu Acked-by: Helin Zhang --- drivers/net/ixgbe/base/ixgbe_x550.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c index 8edc52c1a9..da312ba0ed 100644 --- a/drivers/net/ixgbe/base/ixgbe_x550.c +++ b/drivers/net/ixgbe/base/ixgbe_x550.c @@ -390,6 +390,9 @@ s32 ixgbe_init_ops_X550EM(struct ixgbe_hw *hw) mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync_X550em; mac->ops.release_swfw_sync = ixgbe_release_swfw_sync_X550em; + if (hw->device_id != IXGBE_DEV_ID_X550EM_X_KR) + mac->ops.setup_eee = NULL; + /* PHY */ phy->ops.init = ixgbe_init_phy_ops_X550em; phy->ops.identify = ixgbe_identify_phy_x550em; -- 2.20.1