To support those devices that do not provide packet type info when
receiving packets, add a new option, --parse-ptype, to analyze
packet type in the Rx callback.
Signed-off-by: Jianfeng Tan <jianfeng....@intel.com>
---
examples/l3fwd-power/main.c | 60 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 59 insertions(+), 1 deletion(-)
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index b65d683..46c37bf 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -164,6 +164,8 @@ static uint32_t enabled_port_mask = 0;
static int promiscuous_on = 0;
/* NUMA is enabled by default. */
static int numa_on = 1;
+static int parse_ptype; /**< Parse packet type using rx callback, and */
+ /**< disabled by default */
enum freq_scale_hint_t
{
@@ -607,6 +609,48 @@ get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t
portid,
#endif
static inline void
+parse_ptype_one(struct rte_mbuf *m)
+{
+ struct ether_hdr *eth_hdr;
+ uint32_t packet_type = RTE_PTYPE_UNKNOWN;
+ uint16_t ether_type;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+ ether_type = eth_hdr->ether_type;
+ if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
+ packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+ else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
+ packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+
+ m->packet_type = packet_type;
+}
+
+static uint16_t
+cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused,
+ struct rte_mbuf *pkts[], uint16_t nb_pkts,
+ uint16_t max_pkts __rte_unused,
+ void *user_param __rte_unused)
+{
+ unsigned i;
+
+ for (i = 0; i < nb_pkts; ++i)
+ parse_ptype_one(pkts[i]);
+
+ return nb_pkts;
+}
+
+static int
+add_cb_parse_ptype(uint8_t portid, uint16_t queueid)
+{
+ printf("Port %d: softly parse packet type info\n", portid);
+ if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
+ return 0;
+
+ printf("Failed to add rx callback: port=%d\n", portid);
+ return -1;
+}
+
+static inline void
l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
struct lcore_conf *qconf)
{
@@ -1108,7 +1152,8 @@ print_usage(const char *prgname)
" --config (port,queue,lcore): rx queues configuration\n"
" --no-numa: optional, disable numa awareness\n"
" --enable-jumbo: enable jumbo frame"
- " which max packet len is PKTLEN in decimal (64-9600)\n",
+ " which max packet len is PKTLEN in decimal (64-9600)\n"
+ " --parse-ptype: parse packet type by software\n",
prgname);
}
@@ -1202,6 +1247,8 @@ parse_config(const char *q_arg)
return 0;
}
+#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
+
/* Parse the argument given in the command line of the application */
static int
parse_args(int argc, char **argv)
@@ -1214,6 +1261,7 @@ parse_args(int argc, char **argv)
{"config", 1, 0, 0},
{"no-numa", 0, 0, 0},
{"enable-jumbo", 0, 0, 0},
+ {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
{NULL, 0, 0, 0}
};
@@ -1284,6 +1332,13 @@ parse_args(int argc, char **argv)
(unsigned int)port_conf.rxmode.max_rx_pkt_len);
}
+ if (!strncmp(lgopts[option_index].name,
+ CMD_LINE_OPT_PARSE_PTYPE,
+ sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
+ printf("soft parse-ptype is enabled\n");
+ parse_ptype = 1;
+ }
+
break;
default:
@@ -1716,6 +1771,9 @@ main(int argc, char **argv)
rte_exit(EXIT_FAILURE,
"rte_eth_rx_queue_setup: err=%d, "
"port=%d\n", ret, portid);
+
+ if (parse_ptype && add_cb_parse_ptype(portid, queueid))
+ rte_exit(EXIT_FAILURE, "Fail to add ptype
cb\n");
}
}
--
2.7.4
