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-rw-r--r--test/bpf/t3.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/test/bpf/t3.c b/test/bpf/t3.c
index 531b9cb..9ba3463 100644
--- a/test/bpf/t3.c
+++ b/test/bpf/t3.c
@@ -6,9 +6,15 @@
* eBPF program sample.
* Accepts pointer to struct rte_mbuf as an input parameter.
* Dump the mbuf into stdout if it is an ARP packet (aka tcpdump 'arp').
- * To compile:
- * clang -O2 -I${RTE_SDK}/${RTE_TARGET}/include \
+ *
+ * To compile on x86:
+ * clang -O2 -U __GNUC__ -I${RTE_SDK}/${RTE_TARGET}/include \
* -target bpf -Wno-int-to-void-pointer-cast -c t3.c
+ *
+ * To compile on ARM:
+ * clang -O2 -I/usr/include/aarch64-linux-gnu \
+ * -I${RTE_SDK}/${RTE_TARGET}/include -target bpf \
+ * -Wno-int-to-void-pointer-cast -c t3.c
*/
#include <stdint.h>
@@ -17,6 +23,7 @@
#include <net/ethernet.h>
#include <rte_config.h>
#include "mbuf.h"
+#include <arpa/inet.h>
extern void rte_pktmbuf_dump(FILE *, const struct rte_mbuf *, unsigned int);
@@ -29,7 +36,7 @@ entry(const void *pkt)
mb = pkt;
eth = rte_pktmbuf_mtod(mb, const struct ether_header *);
- if (eth->ether_type == __builtin_bswap16(ETHERTYPE_ARP))
+ if (eth->ether_type == htons(ETHERTYPE_ARP))
rte_pktmbuf_dump(stdout, mb, 64);
return 1;