From: Alejandro Lucero <alejandro.lucero@netronome.com>
Date: Tue, 26 Apr 2016 13:06:36 +0000 (+0100)
Subject: nfp: fix freeing multi-mbuf packets
X-Git-Tag: spdx-start~6949
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=142854c62134;p=dpdk.git

nfp: fix freeing multi-mbuf packets

mbufs were not properly released post-tx when they are chained.

Fixes: b812daadad0d ("nfp: add Rx and Tx")

Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
---

diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 559ebe6486..1259d2c6b3 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -323,7 +323,7 @@ nfp_net_tx_queue_release_mbufs(struct nfp_net_txq *txq)
 
 	for (i = 0; i < txq->tx_count; i++) {
 		if (txq->txbufs[i].mbuf) {
-			rte_pktmbuf_free_seg(txq->txbufs[i].mbuf);
+			rte_pktmbuf_free(txq->txbufs[i].mbuf);
 			txq->txbufs[i].mbuf = NULL;
 		}
 	}
@@ -1976,11 +1976,16 @@ nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 		 */
 		pkt_size = pkt->pkt_len;
 
-		while (pkt_size) {
-			/* Releasing mbuf which was prefetched above */
-			if (*lmbuf)
-				rte_pktmbuf_free_seg(*lmbuf);
+		/* Releasing mbuf which was prefetched above */
+		if (*lmbuf)
+			rte_pktmbuf_free(*lmbuf);
+		/*
+		 * Linking mbuf with descriptor for being released
+		 * next time descriptor is used
+		 */
+		*lmbuf = pkt;
 
+		while (pkt_size) {
 			dma_size = pkt->data_len;
 			dma_addr = rte_mbuf_data_dma_addr(pkt);
 			PMD_TX_LOG(DEBUG, "Working with mbuf at dma address:"
@@ -1994,12 +1999,6 @@ nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
 			ASSERT(free_descs > 0);
 			free_descs--;
 
-			/*
-			 * Linking mbuf with descriptor for being released
-			 * next time descriptor is used
-			 */
-			*lmbuf = pkt;
-
 			txq->wr_p++;
 			txq->tail++;
 			if (unlikely(txq->tail == txq->tx_count)) /* wrapping?*/