net/ixgbe/base: disable FC for 15B0

Disable Ethernet Flow Control (FC) for device 15B0.

Make sure that ixgbe_device_supports_autoneg_fc()
returns false and hw->fc.disable_fc_autoneg is set
to true to avoid running the fc_autoneg function
for the device 15B0, as this device doesn't support
this function.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/drivers/net/ixgbe/base/ixgbe_common.c b/drivers/net/ixgbe/base/ixgbe_common.c
index df6fbf9..4dabb43 100644 (file)
--- a/drivers/net/ixgbe/base/ixgbe_common.c
+++ b/drivers/net/ixgbe/base/ixgbe_common.c
@@ -189,7 +189,10 @@ bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw)
 
                break;
        case ixgbe_media_type_backplane:
-               supported = true;
+               if (hw->device_id == IXGBE_DEV_ID_X550EM_X_XFI)
+                       supported = false;
+               else
+                       supported = true;
                break;
        case ixgbe_media_type_copper:
                /* only some copper devices support flow control autoneg */

diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c
index 1058684..3049865 100644 (file)
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -4005,6 +4005,9 @@ s32 ixgbe_setup_fc_X550em(struct ixgbe_hw *hw)
                /* This device does not fully support AN. */
                hw->fc.disable_fc_autoneg = true;
                break;
+       case IXGBE_DEV_ID_X550EM_X_XFI:
+               hw->fc.disable_fc_autoneg = true;
+               break;
        default:
                break;
        }