If the 'tso-segsz' is not 0, which means TSO offload is enabled.
Signed-off-by: Jijiang Liu <jijiang.liu at intel.com>
---
examples/tep_termination/main.c | 19 +++++++++++++++++--
examples/tep_termination/vxlan.c | 4 ++++
2 files changed, 21 insertions(+), 2 deletions(-)
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;
--
1.7.7.6
