X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Frte_keepalive.c;h=cdd6956054d04561edb5e80180978bb3520d986b;hb=72d013644bd64ef35e2657a4525e1642d3c87a27;hp=bd1f16bf675f488fda81031e975003079ee3985c;hpb=1a8dbad49a9f053c35452a8e448344239a724651;p=dpdk.git

diff --git a/lib/librte_eal/common/rte_keepalive.c b/lib/librte_eal/common/rte_keepalive.c
index bd1f16bf67..cdd6956054 100644
--- a/lib/librte_eal/common/rte_keepalive.c
+++ b/lib/librte_eal/common/rte_keepalive.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright 2015 Intel Shannon Ltd. All rights reserved.
+ *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
  *   modification, are permitted provided that the following conditions
@@ -41,12 +41,8 @@
 
 struct rte_keepalive {
 	/** Core Liveness. */
-	enum rte_keepalive_state {
-		ALIVE = 1,
-		MISSING = 0,
-		DEAD = 2,
-		GONE = 3
-	} __rte_cache_aligned state_flags[RTE_KEEPALIVE_MAXCORES];
+	enum rte_keepalive_state __rte_cache_aligned state_flags[
+		RTE_KEEPALIVE_MAXCORES];
 
 	/** Last-seen-alive timestamps */
 	uint64_t last_alive[RTE_KEEPALIVE_MAXCORES];
@@ -67,8 +63,16 @@ struct rte_keepalive {
 	void *callback_data;
 	uint64_t tsc_initial;
 	uint64_t tsc_mhz;
-};
 
+	/** Core state relay handler. */
+	rte_keepalive_relay_callback_t relay_callback;
+
+	/**
+	 * Core state relay handler app data.
+	 * Pointer is passed to live core handler.
+	 */
+	void *relay_callback_data;
+};
 
 static void
 print_trace(const char *msg, struct rte_keepalive *keepcfg, int idx_core)
@@ -80,7 +84,6 @@ print_trace(const char *msg, struct rte_keepalive *keepcfg, int idx_core)
 	      );
 }
 
-
 void
 rte_keepalive_dispatch_pings(__rte_unused void *ptr_timer,
 	void *ptr_data)
@@ -93,16 +96,18 @@ rte_keepalive_dispatch_pings(__rte_unused void *ptr_timer,
 			continue;
 
 		switch (keepcfg->state_flags[idx_core]) {
-		case ALIVE: /* Alive */
-			keepcfg->state_flags[idx_core] = MISSING;
+		case RTE_KA_STATE_UNUSED:
+			break;
+		case RTE_KA_STATE_ALIVE: /* Alive */
+			keepcfg->state_flags[idx_core] = RTE_KA_STATE_MISSING;
 			keepcfg->last_alive[idx_core] = rte_rdtsc();
 			break;
-		case MISSING: /* MIA */
+		case RTE_KA_STATE_MISSING: /* MIA */
 			print_trace("Core MIA. ", keepcfg, idx_core);
-			keepcfg->state_flags[idx_core] = DEAD;
+			keepcfg->state_flags[idx_core] = RTE_KA_STATE_DEAD;
 			break;
-		case DEAD: /* Dead */
-			keepcfg->state_flags[idx_core] = GONE;
+		case RTE_KA_STATE_DEAD: /* Dead */
+			keepcfg->state_flags[idx_core] = RTE_KA_STATE_GONE;
 			print_trace("Core died. ", keepcfg, idx_core);
 			if (keepcfg->callback)
 				keepcfg->callback(
@@ -110,13 +115,25 @@ rte_keepalive_dispatch_pings(__rte_unused void *ptr_timer,
 					idx_core
 					);
 			break;
-		case GONE: /* Buried */
+		case RTE_KA_STATE_GONE: /* Buried */
+			break;
+		case RTE_KA_STATE_DOZING: /* Core going idle */
+			keepcfg->state_flags[idx_core] = RTE_KA_STATE_SLEEP;
+			keepcfg->last_alive[idx_core] = rte_rdtsc();
+			break;
+		case RTE_KA_STATE_SLEEP: /* Idled core */
 			break;
 		}
+		if (keepcfg->relay_callback)
+			keepcfg->relay_callback(
+				keepcfg->relay_callback_data,
+				idx_core,
+				keepcfg->state_flags[idx_core],
+				keepcfg->last_alive[idx_core]
+				);
 	}
 }
 
-
 struct rte_keepalive *
 rte_keepalive_create(rte_keepalive_failure_callback_t callback,
 	void *data)
@@ -135,17 +152,31 @@ rte_keepalive_create(rte_keepalive_failure_callback_t callback,
 	return keepcfg;
 }
 
+void rte_keepalive_register_relay_callback(struct rte_keepalive *keepcfg,
+	rte_keepalive_relay_callback_t callback,
+	void *data)
+{
+	keepcfg->relay_callback = callback;
+	keepcfg->relay_callback_data = data;
+}
 
 void
 rte_keepalive_register_core(struct rte_keepalive *keepcfg, const int id_core)
 {
-	if (id_core < RTE_KEEPALIVE_MAXCORES)
-		keepcfg->active_cores[id_core] = 1;
+	if (id_core < RTE_KEEPALIVE_MAXCORES) {
+		keepcfg->active_cores[id_core] = RTE_KA_STATE_ALIVE;
+		keepcfg->last_alive[id_core] = rte_rdtsc();
+	}
 }
 
-
 void
 rte_keepalive_mark_alive(struct rte_keepalive *keepcfg)
 {
-	keepcfg->state_flags[rte_lcore_id()] = ALIVE;
+	keepcfg->state_flags[rte_lcore_id()] = RTE_KA_STATE_ALIVE;
+}
+
+void
+rte_keepalive_mark_sleep(struct rte_keepalive *keepcfg)
+{
+	keepcfg->state_flags[rte_lcore_id()] = RTE_KA_STATE_DOZING;
 }