[PATCH] skge: better flow control negotiation

Do flow control negotiation properly. Don't let auto negotiation
status limit renegotiation. Separate desired pause values from
the result of auto negotiation.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 17 insertions, 5 deletions

diff --git a/drivers/net/skge.h b/drivers/net/skge.h
index 9cc955c12503..537c0aaa1db8 100644
--- a/drivers/net/skge.h
+++ b/drivers/net/skge.h
@@ -2427,13 +2427,24 @@ struct skge_hw {
         struct mutex         phy_mutex;
 };
 
-enum {
-        FLOW_MODE_NONE          = 0, /* No Flow-Control */
-        FLOW_MODE_LOC_SEND      = 1, /* Local station sends PAUSE */
-        FLOW_MODE_REM_SEND      = 2, /* Symmetric or just remote */
+enum pause_control {
+        FLOW_MODE_NONE          = 1, /* No Flow-Control */
+        FLOW_MODE_LOC_SEND      = 2, /* Local station sends PAUSE */
         FLOW_MODE_SYMMETRIC     = 3, /* Both stations may send PAUSE */
+        FLOW_MODE_SYM_OR_REM    = 4, /* Both stations may send PAUSE or
+                                      * just the remote station may send PAUSE
+                                      */
+};
+
+enum pause_status {
+        FLOW_STAT_INDETERMINATED=0,     /* indeterminated */
+        FLOW_STAT_NONE,                 /* No Flow Control */
+        FLOW_STAT_REM_SEND,             /* Remote Station sends PAUSE */
+        FLOW_STAT_LOC_SEND,             /* Local station sends PAUSE */
+        FLOW_STAT_SYMMETRIC,            /* Both station may send PAUSE */
 };
 
+
 struct skge_port {
         u32                  msg_enable;
         struct skge_hw       *hw;
@@ -2446,9 +2457,10 @@ struct skge_port {
         struct net_device_stats net_stats;
 
         struct work_struct   link_thread;
+        enum pause_control   flow_control;
+        enum pause_status    flow_status;
         u8                   rx_csum;
         u8                   blink_on;
-        u8                   flow_control;
         u8                   wol;
         u8                   autoneg;   /* AUTONEG_ENABLE, AUTONEG_DISABLE */
         u8                   duplex;    /* DUPLEX_HALF, DUPLEX_FULL */