ixgbe: clear RNBC only for 82598

RNBC (0x03FC0) is only for 82598 and has different meaning
on newer HW. Make sure to only clear it for 82598.

(cherry picked from commit f3116f62cb56ef5efd172371fab688bb27529f69)
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Joe Jin <joe.jin@oracle.com>

diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index 90a04e2471dfea367c396fb5e900981ba1bbb8a4..91986afe969d13120050287349610cd068baa879 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -225,8 +225,9 @@ s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw)
        IXGBE_READ_REG(hw, IXGBE_GORCH);
        IXGBE_READ_REG(hw, IXGBE_GOTCL);
        IXGBE_READ_REG(hw, IXGBE_GOTCH);
-       for (i = 0; i < 8; i++)
-               IXGBE_READ_REG(hw, IXGBE_RNBC(i));
+       if (hw->mac.type == ixgbe_mac_82598EB)
+               for (i = 0; i < 8; i++)
+                       IXGBE_READ_REG(hw, IXGBE_RNBC(i));
        IXGBE_READ_REG(hw, IXGBE_RUC);
        IXGBE_READ_REG(hw, IXGBE_RFC);
        IXGBE_READ_REG(hw, IXGBE_ROC);