Bug fixes for ring ports with IPv4/IPv6 reassembly support. Previous implementation can't work properly due to incorrect choosing process function. Also, assuming that, when processing ip packet, ip header is know we can set l3_len parameter here.
Fixes: 50f54a84dfb7 ("port: add IPv6 reassembly port") Signed-off-by: Piotr Azarewicz <piotrx.t.azarewicz at intel.com> --- lib/librte_port/rte_port_ras.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/lib/librte_port/rte_port_ras.c b/lib/librte_port/rte_port_ras.c index 6bd0f8c..e45d450 100644 --- a/lib/librte_port/rte_port_ras.c +++ b/lib/librte_port/rte_port_ras.c @@ -144,7 +144,7 @@ rte_port_ring_writer_ras_create(void *params, int socket_id, int is_ipv4) port->tx_burst_sz = conf->tx_burst_sz; port->tx_buf_count = 0; - port->f_ras = (is_ipv4 == 0) ? process_ipv4 : process_ipv6; + port->f_ras = (is_ipv4 == 1) ? process_ipv4 : process_ipv6; return port; } @@ -182,7 +182,7 @@ process_ipv4(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt) /* Assume there is no ethernet header */ struct ipv4_hdr *pkt_hdr = rte_pktmbuf_mtod(pkt, struct ipv4_hdr *); - /* Get "Do not fragment" flag and fragment offset */ + /* Get "More fragments" flag and fragment offset */ uint16_t frag_field = rte_be_to_cpu_16(pkt_hdr->fragment_offset); uint16_t frag_offset = (uint16_t)(frag_field & IPV4_HDR_OFFSET_MASK); uint16_t frag_flag = (uint16_t)(frag_field & IPV4_HDR_MF_FLAG); @@ -195,6 +195,8 @@ process_ipv4(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt) struct rte_ip_frag_tbl *tbl = p->frag_tbl; struct rte_ip_frag_death_row *dr = &p->death_row; + pkt->l3_len = sizeof(*pkt_hdr); + /* Process this fragment */ mo = rte_ipv4_frag_reassemble_packet(tbl, dr, pkt, rte_rdtsc(), pkt_hdr); @@ -224,6 +226,8 @@ process_ipv6(struct rte_port_ring_writer_ras *p, struct rte_mbuf *pkt) struct rte_ip_frag_tbl *tbl = p->frag_tbl; struct rte_ip_frag_death_row *dr = &p->death_row; + pkt->l3_len = sizeof(*pkt_hdr) + sizeof(*frag_hdr); + /* Process this fragment */ mo = rte_ipv6_frag_reassemble_packet(tbl, dr, pkt, rte_rdtsc(), pkt_hdr, frag_hdr); -- 1.7.9.5