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From: Jijiang Liu <jijiang.liu@intel.com>
To: dev@dpdk.org
Date: Mon, 8 Jun 2015 11:01:48 +0800
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Subject: [dpdk-dev] [PATCH v3 10/10] examples/tep_termination:add the
configuration for encapsulation and the decapsulation
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The two flags are enabled by default. Sometimes we want to know the performance influence of the encapsulation and decapsulation operations, and
I think we should add the two configuration options.
Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
---
examples/tep_termination/main.c | 36 ++++++++++++++++++++++++++++++++
examples/tep_termination/vxlan_setup.c | 13 +++++++++-
2 files changed, 47 insertions(+), 2 deletions(-)
diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
index b827174..70058e5 100644
--- a/examples/tep_termination/main.c
+++ b/examples/tep_termination/main.c
@@ -113,6 +113,8 @@
#define CMD_LINE_OPT_TX_CHECKSUM "tx-checksum"
#define CMD_LINE_OPT_TSO_SEGSZ "tso-segsz"
#define CMD_LINE_OPT_FILTER_TYPE "filter-type"
+#define CMD_LINE_OPT_ENCAP "encap"
+#define CMD_LINE_OPT_DECAP "decap"
#define CMD_LINE_OPT_RX_RETRY "rx-retry"
#define CMD_LINE_OPT_RX_RETRY_DELAY "rx-retry-delay"
#define CMD_LINE_OPT_RX_RETRY_NUM "rx-retry-num"
@@ -146,6 +148,12 @@ uint8_t tx_checksum;
/* TCP segment size */
uint16_t tso_segsz = 0;
+/* enable/disable decapsulation */
+uint8_t rx_decap = 1;
+
+/* enable/disable encapsulation */
+uint8_t tx_encap = 1;
+
/* RX filter type for tunneling packet */
uint8_t filter_idx = 1;
@@ -274,6 +282,8 @@ tep_termination_usage(const char *prgname)
" --nb-devices[1-64]: The number of virtIO device\n"
" --tx-checksum [0|1]: inner Tx checksum offload\n"
" --tso-segsz [0-N]: TCP segment size\n"
+ " --decap [0|1]: tunneling packet decapsulation\n"
+ " --encap [0|1]: tunneling packet encapsulation\n"
" --filter-type[1-3]: filter type for tunneling packet\n"
" 1: Inner MAC and tenent ID\n"
" 2: Inner MAC and VLAN, and tenent ID\n"
@@ -305,6 +315,8 @@ tep_termination_parse_args(int argc, char **argv)
{CMD_LINE_OPT_UDP_PORT, required_argument, NULL, 0},
{CMD_LINE_OPT_TX_CHECKSUM, required_argument, NULL, 0},
{CMD_LINE_OPT_TSO_SEGSZ, required_argument, NULL, 0},
+ {CMD_LINE_OPT_DECAP, required_argument, NULL, 0},
+ {CMD_LINE_OPT_ENCAP, required_argument, NULL, 0},
{CMD_LINE_OPT_FILTER_TYPE, required_argument, NULL, 0},
{CMD_LINE_OPT_RX_RETRY, required_argument, NULL, 0},
{CMD_LINE_OPT_RX_RETRY_DELAY, required_argument, NULL, 0},
@@ -400,6 +412,30 @@ tep_termination_parse_args(int argc, char **argv)
burst_rx_retry_num = ret;
}
+ /* Enable/disable encapsulation on RX. */
+ if (!strncmp(long_option[option_index].name, CMD_LINE_OPT_DECAP,
+ sizeof(CMD_LINE_OPT_DECAP))) {
+ ret = parse_num_opt(optarg, 1);
+ if (ret == -1) {
+ RTE_LOG(INFO, VHOST_CONFIG, "Invalid argument for decap [0|1]\n");
+ tep_termination_usage(prgname);
+ return -1;
+ } else
+ rx_decap = ret;
+ }
+
+ /* Enable/disable encapsulation on TX. */
+ if (!strncmp(long_option[option_index].name, CMD_LINE_OPT_ENCAP,
+ sizeof(CMD_LINE_OPT_ENCAP))) {
+ ret = parse_num_opt(optarg, 1);
+ if (ret == -1) {
+ RTE_LOG(INFO, VHOST_CONFIG, "Invalid argument for encap [0|1]\n");
+ tep_termination_usage(prgname);
+ return -1;
+ } else
+ tx_encap = ret;
+ }
+
if (!strncmp(long_option[option_index].name, CMD_LINE_OPT_TX_CHECKSUM,
sizeof(CMD_LINE_OPT_TX_CHECKSUM))) {
ret = parse_num_opt(optarg, 1);
diff --git a/examples/tep_termination/vxlan_setup.c b/examples/tep_termination/vxlan_setup.c
index 7b6182b..5ce5e79 100644
--- a/examples/tep_termination/vxlan_setup.c
+++ b/examples/tep_termination/vxlan_setup.c
@@ -78,6 +78,8 @@ extern uint16_t nb_devices;
extern uint16_t udp_port;
extern uint8_t ports[RTE_MAX_ETHPORTS];
extern uint8_t filter_idx;
+extern uint8_t rx_decap;
+extern uint8_t tx_encap;
extern uint16_t tso_segsz;
extern uint32_t enable_stats;
extern struct device_statistics dev_statistics[MAX_DEVICES];
@@ -226,13 +228,20 @@ vxlan_port_init(uint8_t port, struct rte_mempool *mbuf_pool)
static int
vxlan_rx_process(struct rte_mbuf *pkt)
{
- return decapsulation(pkt);
+ int ret = 0;
+
+ if (rx_decap)
+ ret = decapsulation(pkt);
+
+ return ret;
}
static void
vxlan_tx_process(uint8_t queue_id, struct rte_mbuf *pkt)
{
- encapsulation(pkt, queue_id);
+ if (tx_encap)
+ encapsulation(pkt, queue_id);
+
return;
}
--
1.7.7.6