Updated retry timer mechanism to incorporate smoothed RTT estimation.

[gpxe.git] / src / include / gpxe / retry.h

diff --git a/src/include/gpxe/retry.h b/src/include/gpxe/retry.h
index 8a9e2cf..8f197bc 100644 (file)
--- a/src/include/gpxe/retry.h
+++ b/src/include/gpxe/retry.h
@@ -9,28 +9,27 @@
 
 #include <gpxe/list.h>
 
-/** Effective maximum retry count for exponential backoff calculation */
-#define BACKOFF_LIMIT 5
-
 /** A retry timer */
 struct retry_timer {
        /** List of active timers */
        struct list_head list;
-       /** Base timeout (in ticks) */
-       unsigned int base;
-       /** Retry count */
-       unsigned int retries;
-       /** Expiry time (in ticks) */
-       unsigned long expiry;
+       /** Timeout value (in ticks) */
+       unsigned long timeout;
+       /** Start time (in ticks) */
+       unsigned long start;
        /** Timer expired callback
         *
         * @v timer     Retry timer
+        * @v fail      Failure indicator
+        *
+        * The timer will already be stopped when this method is
+        * called.  The failure indicator will be True if the retry
+        * timeout has already exceeded @c MAX_TIMEOUT.
         */
-       void ( * expired ) ( struct retry_timer *timer );
+       void ( * expired ) ( struct retry_timer *timer, int over );
 };
 
 extern void start_timer ( struct retry_timer *timer );
-extern void reset_timer ( struct retry_timer *timer );
 extern void stop_timer ( struct retry_timer *timer );
 
 #endif /* _GPXE_RETRY_H */