X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=examples%2Fvhost%2Fmain.c;h=959c0c2838b4585d831d3fb8b49f8067849c259e;hb=01817b10d27c8d1376210d4798bf504dffaa8ccd;hp=ab649bf147e16b3267a6a2b4e337f47f0598408a;hpb=70febdcfd60f278be598ec9bcf1ff5bb5c5a59a8;p=dpdk.git

diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index ab649bf147..959c0c2838 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -92,7 +92,6 @@ static uint32_t enable_tx_csum;
 static uint32_t enable_tso;
 
 static int client_mode;
-static int dequeue_zero_copy;
 
 static int builtin_net_driver;
 
@@ -247,16 +246,6 @@ port_init(uint16_t port)
 	rx_ring_size = RTE_TEST_RX_DESC_DEFAULT;
 	tx_ring_size = RTE_TEST_TX_DESC_DEFAULT;
 
-	/*
-	 * When dequeue zero copy is enabled, guest Tx used vring will be
-	 * updated only when corresponding mbuf is freed. Thus, the nb_tx_desc
-	 * (tx_ring_size here) must be small enough so that the driver will
-	 * hit the free threshold easily and free mbufs timely. Otherwise,
-	 * guest Tx vring would be starved.
-	 */
-	if (dequeue_zero_copy)
-		tx_ring_size = 64;
-
 	tx_rings = (uint16_t)rte_lcore_count();
 
 	/* Get port configuration. */
@@ -407,10 +396,7 @@ parse_portmask(const char *portmask)
 	/* parse hexadecimal string */
 	pm = strtoul(portmask, &end, 16);
 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0') || (errno != 0))
-		return -1;
-
-	if (pm == 0)
-		return -1;
+		return 0;
 
 	return pm;
 
@@ -460,8 +446,7 @@ us_vhost_usage(const char *prgname)
 	"		--socket-file: The path of the socket file.\n"
 	"		--tx-csum [0|1] disable/enable TX checksum offload.\n"
 	"		--tso [0|1] disable/enable TCP segment offload.\n"
-	"		--client register a vhost-user socket as client mode.\n"
-	"		--dequeue-zero-copy enables dequeue zero copy\n",
+	"		--client register a vhost-user socket as client mode.\n",
 	       prgname);
 }
 
@@ -486,7 +471,6 @@ us_vhost_parse_args(int argc, char **argv)
 		{"tx-csum", required_argument, NULL, 0},
 		{"tso", required_argument, NULL, 0},
 		{"client", no_argument, &client_mode, 1},
-		{"dequeue-zero-copy", no_argument, &dequeue_zero_copy, 1},
 		{"builtin-net-driver", no_argument, &builtin_net_driver, 1},
 		{NULL, 0, 0, 0},
 	};
@@ -1334,6 +1318,8 @@ print_stats(__rte_unused void *arg)
 		}
 
 		printf("===================================================\n");
+
+		fflush(stdout);
 	}
 
 	return NULL;
@@ -1511,9 +1497,6 @@ main(int argc, char *argv[])
 	if (client_mode)
 		flags |= RTE_VHOST_USER_CLIENT;
 
-	if (dequeue_zero_copy)
-		flags |= RTE_VHOST_USER_DEQUEUE_ZERO_COPY;
-
 	/* Register vhost user driver to handle vhost messages. */
 	for (i = 0; i < nb_sockets; i++) {
 		char *file = socket_files + i * PATH_MAX;