examples/l3fwd: fix crash with IPv6

Lookup burst size was changed for exact match
from 4 to 8, for both ipv4 and ipv6, but actually only
4 keys were being looked up for ipv6, instead of 8,
causing random segmentation faults.

Fixes: 80fcb4d4 ("examples/l3fwd: increase lookup burst size to 8")

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Reshma Pattan <reshma.pattan@intel.com>

diff --git a/doc/guides/rel_notes/release_2_2.rst b/doc/guides/rel_notes/release_2_2.rst
index efa38d3..34237b9 100644 (file)
--- a/doc/guides/rel_notes/release_2_2.rst
+++ b/doc/guides/rel_notes/release_2_2.rst
@@ -239,6 +239,8 @@ Libraries
 Examples
 ~~~~~~~~
 
+* **l3fwd: Fixed crash with IPv6.**
+
 * **vhost_xen: Fixed compile error.**
 
 

diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index 9a7fd8c..91a0f58 100644 (file)
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -1005,7 +1005,7 @@ simple_ipv6_fwd_8pkts(struct rte_mbuf *m[8], uint8_t portid, struct lcore_conf *
        const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
                                &key[4], &key[5], &key[6], &key[7]};
 
-       rte_hash_lookup_multi(qconf->ipv6_lookup_struct, &key_array[0], 4, ret);
+       rte_hash_lookup_multi(qconf->ipv6_lookup_struct, &key_array[0], 8, ret);
        dst_port[0] = (uint8_t) ((ret[0] < 0) ? portid:ipv6_l3fwd_out_if[ret[0]]);
        dst_port[1] = (uint8_t) ((ret[1] < 0) ? portid:ipv6_l3fwd_out_if[ret[1]]);
        dst_port[2] = (uint8_t) ((ret[2] < 0) ? portid:ipv6_l3fwd_out_if[ret[2]]);