niu: improve ethtool support for gigabit copper cards

Introduced support for link speed and duplex setting (ethtool -s),
link advertising parameters and autonegotiation (ethtool -r):
- struct niu_link_config: split advertising and autoneg
  fields into active and target values (similar to speed
  and duplex fields)
- mii_init_common(): rewrite function to actually apply
  requested niu_link_config parameters instead of providing
  default initialization
- link_status_1g(): move parsing of MII registers into
  new link_status_mii() function (link_status_1g_rgmii()
  could possibly use this new implementation too)
- introduce simple nway_reset method
- fix incorrect XMAC_CONFIG_MODE selection for 10Mbps case

Signed-off-by: Constantin Baranov <baranov@mercdev.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/niu.h b/drivers/net/niu.h
index e1a7392e8d70..5a002375b35b 100644
--- a/drivers/net/niu.h
+++ b/drivers/net/niu.h
@@ -3131,16 +3131,19 @@ struct niu_ops {
 };
 
 struct niu_link_config {
+        u32                             supported;
+
         /* Describes what we're trying to get. */
         u32                             advertising;
-        u32                             supported;
         u16                             speed;
         u8                              duplex;
         u8                              autoneg;
 
         /* Describes what we actually have. */
+        u32                             active_advertising;
         u16                             active_speed;
         u8                              active_duplex;
+        u8                              active_autoneg;
 #define SPEED_INVALID           0xffff
 #define DUPLEX_INVALID          0xff
 #define AUTONEG_INVALID         0xff