Added support for reporting packet (mis)order.

The "Latency" screen has been updated with 3 columns:
- mis-ordered
  Count the number of mis-ordered packets.
- extent:
  Gives an indication of how mis-ordered the packets are.
  Receiving packet "x - 5" after receiving packet "x" will
  cause an extent of 5.
- duplicate:
  Count number of duplicate packets.

Following commands have been added for the impair mode:
- proba no drop: replaces the former "probability" command.
  Percentage of forwarded packets. So 99.5 means 0.5% of packet drop.
- proba delay
  Percentage of delayed packets for the impair mode.
- proba duplicate
  Percentage of duplicate packets.

Similar parameters are supported within the config files:
- proba no drop
- proba delay
- proba duplicate

Note: it is recommanded to use the signature when measuring packet
misorder, as otherwise unexpected packet would cause miscounts.

Change-Id: I037f606f264d6e2bd7f123df5ed57ab7df8386d7
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>

1 files changed, 37 insertions, 2 deletions

diff --git a/VNFs/DPPD-PROX/prox_args.c b/VNFs/DPPD-PROX/prox_args.c
index 5af19318..3e3e41ba 100644
--- a/VNFs/DPPD-PROX/prox_args.c
+++ b/VNFs/DPPD-PROX/prox_args.c
@@ -1141,7 +1141,7 @@ static int get_core_cfg(unsigned sindex, char *str, void *data)
 	if (STR_EQ(str, "packet id pos")) {
 		return parse_int(&targ->packet_id_pos, pkey);
 	}
-	if (STR_EQ(str, "probability")) {
+	if (STR_EQ(str, "probability")) { // old - use "probability no drop" instead
 		float probability;
 		int rc = parse_float(&probability, pkey);
 		if (probability == 0) {
@@ -1151,9 +1151,44 @@ static int get_core_cfg(unsigned sindex, char *str, void *data)
 			set_errf("Probability must be < 100\n");
 			return -1;
 		}
-		targ->probability = probability * 10000;
+		targ->probability_no_drop = probability * 10000;
 		return rc;
 	}
+	if (STR_EQ(str, "proba no drop")) {
+		float probability;
+		int rc = parse_float(&probability, pkey);
+		if (probability == 0) {
+			set_errf("probability no drop must be != 0\n");
+			return -1;
+		} else if (probability > 100.0) {
+			set_errf("Probability must be < 100\n");
+			return -1;
+		}
+		targ->probability_no_drop = probability * 10000;
+		return rc;
+	}
+	if (STR_EQ(str, "proba delay")) {
+		float probability;
+		int rc = parse_float(&probability, pkey);
+		if (probability > 100.0) {
+			set_errf("Probability must be < 100\n");
+			return -1;
+		}
+		targ->probability_delay = probability * 10000;
+		return rc;
+	}
+#if RTE_VERSION >= RTE_VERSION_NUM(19,11,0,0)
+	if (STR_EQ(str, "proba duplicate")) {
+		float probability;
+		int rc = parse_float(&probability, pkey);
+		if (probability > 100.0) {
+			set_errf("probability duplicate must be < 100\n");
+			return -1;
+		}
+		targ->probability_duplicate = probability * 10000;
+		return rc;
+	}
+#endif
 	if (STR_EQ(str, "concur conn")) {
 		return parse_int(&targ->n_concur_conn, pkey);
 	}