diff options
| -rw-r--r-- | src/plugins/crypto_sw_scheduler/main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/plugins/crypto_sw_scheduler/main.c b/src/plugins/crypto_sw_scheduler/main.c index 47fa37d7251..09d4a0b9b94 100644 --- a/src/plugins/crypto_sw_scheduler/main.c +++ b/src/plugins/crypto_sw_scheduler/main.c @@ -471,6 +471,15 @@ crypto_sw_scheduler_process_aead (vlib_main_t *vm, tail = current_queue->tail; head = current_queue->head; + /* Skip this queue unless tail < head or head has overflowed + * and tail has not. At the point where tail overflows (== 0), + * the largest possible value of head is (queue size - 1). + * Prior to that, the largest possible value of head is + * (queue size - 2). + */ + if ((tail > head) && (head >= CRYPTO_SW_SCHEDULER_QUEUE_MASK)) + goto skip_queue; + for (j = tail; j != head; j++) { @@ -488,6 +497,7 @@ crypto_sw_scheduler_process_aead (vlib_main_t *vm, } } + skip_queue: if (found || i == ptd->last_serve_lcore_id) { CLIB_MEMORY_STORE_BARRIER (); |