app/crypto-perf: support lookaside IPsec

[dpdk.git] / lib / kni / rte_kni.c

diff --git a/lib/kni/rte_kni.c b/lib/kni/rte_kni.c
index 9dae6a8..d3e2360 100644 (file)
--- a/lib/kni/rte_kni.c
+++ b/lib/kni/rte_kni.c
@@ -677,8 +677,9 @@ kni_allocate_mbufs(struct rte_kni *kni)
                return;
        }
 
-       allocq_free = (kni->alloc_q->read - kni->alloc_q->write - 1)
-                       & (MAX_MBUF_BURST_NUM - 1);
+       allocq_free = kni_fifo_free_count(kni->alloc_q);
+       allocq_free = (allocq_free > MAX_MBUF_BURST_NUM) ?
+               MAX_MBUF_BURST_NUM : allocq_free;
        for (i = 0; i < allocq_free; i++) {
                pkts[i] = rte_pktmbuf_alloc(kni->pktmbuf_pool);
                if (unlikely(pkts[i] == NULL)) {
@@ -810,6 +811,9 @@ rte_kni_update_link(struct rte_kni *kni, unsigned int linkup)
        }
        old_linkup = (old_carrier[0] == '1');
 
+       if (old_linkup == (int)linkup)
+               goto out;
+
        new_carrier = linkup ? "1" : "0";
        ret = write(fd, new_carrier, 1);
        if (ret < 1) {
@@ -817,7 +821,7 @@ rte_kni_update_link(struct rte_kni *kni, unsigned int linkup)
                close(fd);
                return -1;
        }
-
+out:
        close(fd);
        return old_linkup;
 }