crypto-input: fix crash bug
as this node is refactored in new style with
vlib_buffer_enqueue_to_next, we have to check if the 'count'
is greater than 0. otherise, the next_index would be invalid
then lead to a crash
@@ -167,6 +167,10 @@ dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
res->qp_id + outbound,
ops, VLIB_FRAME_SIZE);
+ /* no op dequeued, do not proceed */
+ if (n_deq == 0)
+ return 0;
+
res->inflights[outbound] -= n_ops;
dpdk_crypto_input_trace (vm, node, ops, n_deq);
@@ -184,14 +188,14 @@ dpdk_crypto_dequeue (vlib_main_t * vm, vlib_node_runtime_t * node,
CLIB_PREFETCH (ops[6], CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (ops[7], CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (crypto_op_get_priv (ops[4]), CLIB_CACHE_LINE_BYTES,
- LOAD);
- CLIB_PREFETCH (crypto_op_get_priv (ops[5]), CLIB_CACHE_LINE_BYTES,
- LOAD);
- CLIB_PREFETCH (crypto_op_get_priv (ops[6]), CLIB_CACHE_LINE_BYTES,
- LOAD);
- CLIB_PREFETCH (crypto_op_get_priv (ops[7]), CLIB_CACHE_LINE_BYTES,
- LOAD);
+ CLIB_PREFETCH (crypto_op_get_priv (ops[4]),
+ CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (crypto_op_get_priv (ops[5]),
+ CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (crypto_op_get_priv (ops[6]),
+ CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (crypto_op_get_priv (ops[7]),
+ CLIB_CACHE_LINE_BYTES, LOAD);
}
op0 = ops[0];
