ixgbe/base: fix X550 PCIe master disabling

This patch skips the PCI transactions pending check in
ixgbe_disable_pcie_master. The PCI transactions pending bit sticks high
when there were pending transactions, we should wait and then continue
with our reset flow.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>

diff --git a/drivers/net/ixgbe/base/ixgbe_common.c b/drivers/net/ixgbe/base/ixgbe_common.c
index 9e80722..17db352 100644 (file)
--- a/drivers/net/ixgbe/base/ixgbe_common.c
+++ b/drivers/net/ixgbe/base/ixgbe_common.c
@@ -3142,6 +3142,9 @@ s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw)
        DEBUGOUT("GIO Master Disable bit didn't clear - requesting resets\n");
        hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
 
+       if (hw->mac.type >= ixgbe_mac_X550)
+               goto out;
+
        /*
         * Before proceeding, make sure that the PCIe block does not have
         * transactions pending.