[dpdk-dev] [PATCH v9 4/5] vhost: use lib API to make RARP packet

[Xiao Wang]

Signed-off-by: Xiao Wang <xiao.w.w...@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
 lib/Makefile                  |  3 ++-
 lib/librte_vhost/Makefile     |  2 +-
 lib/librte_vhost/virtio_net.c | 41 +----------------------------------------
 3 files changed, 4 insertions(+), 42 deletions(-)

diff --git a/lib/Makefile b/lib/Makefile
index 420270252..679912a28 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -31,7 +31,8 @@ DEPDIRS-librte_security += librte_cryptodev
 DIRS-$(CONFIG_RTE_LIBRTE_EVENTDEV) += librte_eventdev
 DEPDIRS-librte_eventdev := librte_eal librte_ring librte_ether librte_hash
 DIRS-$(CONFIG_RTE_LIBRTE_VHOST) += librte_vhost
-DEPDIRS-librte_vhost := librte_eal librte_mempool librte_mbuf librte_ether
+DEPDIRS-librte_vhost := librte_eal librte_mempool librte_mbuf librte_ether \
+                       librte_net
 DIRS-$(CONFIG_RTE_LIBRTE_HASH) += librte_hash
 DEPDIRS-librte_hash := librte_eal librte_ring
 DIRS-$(CONFIG_RTE_LIBRTE_EFD) += librte_efd
diff --git a/lib/librte_vhost/Makefile b/lib/librte_vhost/Makefile
index 3b8cd27a3..065d5c469 100644
--- a/lib/librte_vhost/Makefile
+++ b/lib/librte_vhost/Makefile
@@ -17,7 +17,7 @@ LDLIBS += -lpthread
 ifeq ($(CONFIG_RTE_LIBRTE_VHOST_NUMA),y)
 LDLIBS += -lnuma
 endif
-LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_ethdev
+LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_ethdev -lrte_net
 
 # all source are stored in SRCS-y
 SRCS-$(CONFIG_RTE_LIBRTE_VHOST) := fd_man.c iotlb.c socket.c vhost.c \
diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 2227ced88..f58efc0e6 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -813,45 +813,6 @@ vhost_dequeue_offload(struct virtio_net_hdr *hdr, struct 
rte_mbuf *m)
        }
 }
 
-#define RARP_PKT_SIZE  64
-
-static int
-make_rarp_packet(struct rte_mbuf *rarp_mbuf, const struct ether_addr *mac)
-{
-       struct ether_hdr *eth_hdr;
-       struct arp_hdr  *rarp;
-
-       if (rarp_mbuf->buf_len < 64) {
-               RTE_LOG(WARNING, VHOST_DATA,
-                       "failed to make RARP; mbuf size too small %u (< %d)\n",
-                       rarp_mbuf->buf_len, RARP_PKT_SIZE);
-               return -1;
-       }
-
-       /* Ethernet header. */
-       eth_hdr = rte_pktmbuf_mtod_offset(rarp_mbuf, struct ether_hdr *, 0);
-       memset(eth_hdr->d_addr.addr_bytes, 0xff, ETHER_ADDR_LEN);
-       ether_addr_copy(mac, &eth_hdr->s_addr);
-       eth_hdr->ether_type = htons(ETHER_TYPE_RARP);
-
-       /* RARP header. */
-       rarp = (struct arp_hdr *)(eth_hdr + 1);
-       rarp->arp_hrd = htons(ARP_HRD_ETHER);
-       rarp->arp_pro = htons(ETHER_TYPE_IPv4);
-       rarp->arp_hln = ETHER_ADDR_LEN;
-       rarp->arp_pln = 4;
-       rarp->arp_op  = htons(ARP_OP_REVREQUEST);
-
-       ether_addr_copy(mac, &rarp->arp_data.arp_sha);
-       ether_addr_copy(mac, &rarp->arp_data.arp_tha);
-       memset(&rarp->arp_data.arp_sip, 0x00, 4);
-       memset(&rarp->arp_data.arp_tip, 0x00, 4);
-
-       rarp_mbuf->pkt_len  = rarp_mbuf->data_len = RARP_PKT_SIZE;
-
-       return 0;
-}
-
 static __rte_always_inline void
 put_zmbuf(struct zcopy_mbuf *zmbuf)
 {
@@ -1214,7 +1175,7 @@ rte_vhost_dequeue_burst(int vid, uint16_t queue_id,
                        return 0;
                }
 
-               if (make_rarp_packet(rarp_mbuf, &dev->mac)) {
+               if (rte_net_make_rarp_packet(rarp_mbuf, &dev->mac) < 0) {
                        rte_pktmbuf_free(rarp_mbuf);
                        rarp_mbuf = NULL;
                } else {
-- 
2.15.1