diff mbox

[dpdk-dev,RFC,09/10] examples/tep_termination:add TSO offload configuration

Message ID 1429156558-28548-10-git-send-email-jijiang.liu@intel.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Jijiang Liu April 16, 2015, 3:55 a.m. UTC 
  If the 'tso-segsz' is not 0, which means TSO offload is enabled.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
---
 examples/tep_termination/main.c  |   19 +++++++++++++++++--
 examples/tep_termination/vxlan.c |    4 ++++
 2 files changed, 21 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index 7c69a82..8ce78ee 100644
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -122,6 +122,9 @@  uint16_t udp_port;
 /* enable/disable inner TX checksum */
 uint8_t tx_checksum;
 
+/* TSO segment size */
+uint16_t tso_segsz = 0;
+
 /* RX filter type for tunneling packet */
 uint8_t filter_idx;
 
@@ -246,6 +249,7 @@  vep_termination_usage(const char *prgname)
 	"		--udp-port: UDP destination port for VXLAN packet\n"
 	"		--nb-devices: number of virtIO device\n"
 	"		--tx-checksum [0|1]: inner Tx checksum offload\n"
+	"		--tso-segsz [0-N]: TSO segment size\n"
 	"		--filter-type[1-3]: filter type for tunneling packet\n"
 	"		    1: Inner MAC&VLAN and tenent ID\n"
 	"		    2: Inner MAC and tenent ID\n"
@@ -271,6 +275,7 @@  tep_parse_args(int argc, char **argv)
 		{"udp-port", required_argument, NULL, 0},
 		{"nb-devices", required_argument, NULL, 0},
 		{"tx-checksum", required_argument, NULL, 0},
+		{"tso-segsz", required_argument, NULL, 0},
 		{"filter-type", required_argument, NULL, 0},
 		{"stats", required_argument, NULL, 0},
 		{"dev-basename", required_argument, NULL, 0},
@@ -301,6 +306,16 @@  tep_parse_args(int argc, char **argv)
 				} else 
 					num_devices = ret;
 			}
+
+			if (!strncmp(long_option[option_index].name, "tso-segsz", MAX_LONG_OPT_SZ)) {
+				ret = parse_num_opt(optarg, INT16_MAX);
+				if (ret == -1) {
+					RTE_LOG(INFO, VHOST_CONFIG, "Invalid argument for TCP segment size [0-N]\n");
+						vep_termination_usage(prgname);
+					return -1;
+				} else 
+					tso_segsz = ret;
+			}
 	
 			if (!strncmp(long_option[option_index].name, "udp-port", MAX_LONG_OPT_SZ)) {
 				ret = parse_num_opt(optarg, INT16_MAX);
@@ -310,8 +325,8 @@  tep_parse_args(int argc, char **argv)
 					return -1;
 				}
 			}
-
-			 if (!strncmp(long_option[option_index].name, "tx-checksum", MAX_LONG_OPT_SZ)) {
+			
+			if (!strncmp(long_option[option_index].name, "tx-checksum", MAX_LONG_OPT_SZ)) {
 				ret = parse_num_opt(optarg, 1);
 				if (ret == -1) {
 					RTE_LOG(INFO, VHOST_CONFIG, "Invalid argument for tx-checksum [0|1]\n");
diff --git a/examples/tep_termination/vxlan.c b/examples/tep_termination/vxlan.c
index 6fc75ee..e3ef832 100644
--- a/examples/tep_termination/vxlan.c
+++ b/examples/tep_termination/vxlan.c
@@ -48,6 +48,7 @@  extern struct vxlan_conf vxdev;
 extern struct ipv4_hdr app_ip_hdr[VXLAN_N_PORTS];
 extern struct ether_hdr app_l2_hdr[VXLAN_N_PORTS];
 extern uint16_t udp_port;
+extern uint16_t tso_segsz;
 
 static uint16_t
 get_psd_sum(void *l3_hdr, uint16_t ethertype, uint64_t ol_flags)
@@ -149,6 +150,8 @@  process_inner_cksums(struct ether_hdr *eth_hdr, struct offload_info *info)
 		ol_flags |= PKT_TX_TCP_CKSUM;
 		tcp_hdr->cksum = get_psd_sum(l3_hdr, info->ethertype,
 				ol_flags);
+		if (tso_segsz != 0)
+			ol_flags |= PKT_TX_TCP_SEG;
 
 	} else if (info->l4_proto == IPPROTO_SCTP) {
 		sctp_hdr = (struct sctp_hdr *)((char *)l3_hdr + info->l3_len);
@@ -219,6 +222,7 @@  int encapsulation(struct rte_mbuf *m, uint8_t vport_id)
 	m->outer_l3_len = sizeof(struct ipv4_hdr);
 
 	m->ol_flags |= ol_flags;
+	m->tso_segsz = tso_segsz;
 
 	/*VXLAN HEADER*/
 	vxlan->vx_flags = VXLAN_FLAGS;