Priority flow contol statistics for Data Center Bridging (DCB) weren't
included in ethtool.  This patch adds them.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Eric W Multanen <eric.w.multanen@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
                if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
                        for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) {
                                sprintf(p, "tx_pb_%u_pxon", i);
+                               p += ETH_GSTRING_LEN;
+                               sprintf(p, "tx_pb_%u_pxoff", i);
+                               p += ETH_GSTRING_LEN;
                        }
                        for (i = 0; i < MAX_RX_PACKET_BUFFERS; i++) {
+                               sprintf(p, "rx_pb_%u_pxon", i);
+                               p += ETH_GSTRING_LEN;
+                               sprintf(p, "rx_pb_%u_pxoff", i);
+                               p += ETH_GSTRING_LEN;
                        }
                }
                /* BUG_ON(p - data != IXGBE_STATS_LEN * ETH_GSTRING_LEN); */