From: Hemant Agrawal <hemant.agrawal@nxp.com>
Date: Fri, 19 Jul 2019 10:06:08 +0000 (+0530)
Subject: net/dpaa: check multi-segment external buffers
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=829904201f0a3a43c740d64e216167265bc34ffa;p=dpdk.git

net/dpaa: check multi-segment external buffers

This patch add check to return error as the handling
for external buffer packets with SG is currently missing.

Fixes: 37f9b54bd3cf ("net/dpaa: support Tx and Rx queue setup")
Cc: stable@dpdk.org

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---

diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c
index f16b7e0bc6..30b1836079 100644
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -957,6 +957,16 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 					goto send_pkts;
 				}
 			} else {
+				/* TODO not supporting sg for external bufs*/
+				if (unlikely(mbuf->nb_segs > 1)) {
+					/* Set frames_to_send & nb_bufs so
+					 * that packets are transmitted till
+					 * previous frame.
+					 */
+					frames_to_send = loop;
+					nb_bufs = loop;
+					goto send_pkts;
+				}
 				state = tx_on_external_pool(q, mbuf,
 							    &fd_arr[loop]);
 				if (unlikely(state)) {