X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_mbuf%2Frte_mbuf.c;h=f5065170618ef8da67c57cc0d52a13d60351a25e;hb=d307f7957c9da6dee264ab7c9b349871c5a4c5fc;hp=d1f2a6f5655a2c7221c1b63aca164fc1db91dec6;hpb=b507905ff407f53ac87ec6c4a10a5f7000ecb062;p=dpdk.git

diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index d1f2a6f565..f506517061 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -119,9 +119,10 @@ rte_pktmbuf_init(struct rte_mempool *mp,
 		 __attribute__((unused)) unsigned i)
 {
 	struct rte_mbuf *m = _m;
-	uint32_t mbuf_size, buf_len;
+	uint32_t mbuf_size, buf_len, priv_size;
 
-	mbuf_size = sizeof(struct rte_mbuf) + rte_pktmbuf_priv_size(mp);
+	priv_size = rte_pktmbuf_priv_size(mp);
+	mbuf_size = sizeof(struct rte_mbuf) + priv_size;
 	buf_len = rte_pktmbuf_data_room_size(mp);
 
 	RTE_MBUF_ASSERT(mp->elt_size >= mbuf_size);
@@ -129,7 +130,8 @@ rte_pktmbuf_init(struct rte_mempool *mp,
 
 	memset(m, 0, mp->elt_size);
 
-	/* start of buffer is just after mbuf structure */
+	/* start of buffer is after mbuf structure and priv data */
+	m->priv_size = priv_size;
 	m->buf_addr = (char *)m + mbuf_size;
 	m->buf_physaddr = rte_mempool_virt2phy(mp, m) + mbuf_size;
 	m->buf_len = (uint16_t)buf_len;
@@ -143,6 +145,27 @@ rte_pktmbuf_init(struct rte_mempool *mp,
 	m->port = 0xff;
 }
 
+/* helper to create a mbuf pool */
+struct rte_mempool *
+rte_pktmbuf_pool_create(const char *name, unsigned n,
+	unsigned cache_size, uint16_t priv_size, uint16_t data_room_size,
+	int socket_id)
+{
+	struct rte_pktmbuf_pool_private mbp_priv;
+	unsigned elt_size;
+
+
+	elt_size = sizeof(struct rte_mbuf) + (unsigned)priv_size +
+		(unsigned)data_room_size;
+	mbp_priv.mbuf_data_room_size = data_room_size;
+	mbp_priv.mbuf_priv_size = priv_size;
+
+	return rte_mempool_create(name, n, elt_size,
+		cache_size, sizeof(struct rte_pktmbuf_pool_private),
+		rte_pktmbuf_pool_init, &mbp_priv, rte_pktmbuf_init, NULL,
+		socket_id, 0);
+}
+
 /* do some sanity checks on a mbuf: panic if it fails */
 void
 rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header)