X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=lib%2Flibrte_kni%2Frte_kni.c;h=8c483c1f41bacf6cd9a71a619fecd10898e18c7a;hb=refs%2Fchanges%2F86%2F8086%2F1;hp=c3f9208c12dde3be231c52e1b3c168d9ab83188e;hpb=bf7567fd2a5b0b28ab724046143c24561d38d015;p=deb_dpdk.git

diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c
index c3f9208c..8c483c1f 100644
--- a/lib/librte_kni/rte_kni.c
+++ b/lib/librte_kni/rte_kni.c
@@ -119,7 +119,7 @@ struct rte_kni_memzone_pool {
 
 	uint32_t max_ifaces;                /**< Max. num of KNI ifaces */
 	struct rte_kni_memzone_slot *slots;        /**< Pool slots */
-	rte_spinlock_t mutex;               /**< alloc/relase mutex */
+	rte_spinlock_t mutex;               /**< alloc/release mutex */
 
 	/* Free memzone slots linked-list */
 	struct rte_kni_memzone_slot *free;         /**< First empty slot */
@@ -624,6 +624,7 @@ kni_allocate_mbufs(struct rte_kni *kni)
 	int i, ret;
 	struct rte_mbuf *pkts[MAX_MBUF_BURST_NUM];
 	void *phys[MAX_MBUF_BURST_NUM];
+	int allocq_free;
 
 	RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pool) !=
 			 offsetof(struct rte_kni_mbuf, pool));
@@ -646,7 +647,9 @@ kni_allocate_mbufs(struct rte_kni *kni)
 		return;
 	}
 
-	for (i = 0; i < MAX_MBUF_BURST_NUM; i++) {
+	allocq_free = (kni->alloc_q->read - kni->alloc_q->write - 1) \
+			& (MAX_MBUF_BURST_NUM - 1);
+	for (i = 0; i < allocq_free; i++) {
 		pkts[i] = rte_pktmbuf_alloc(kni->pktmbuf_pool);
 		if (unlikely(pkts[i] == NULL)) {
 			/* Out of memory */