From: Benoît Ganne <bganne@cisco.com>
Date: Tue, 22 Jun 2021 13:46:33 +0000 (+0200)
Subject: memif: fix tx desc length for chained buffers in copy mode
X-Git-Tag: v22.02-rc0~238
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=b946b209b9c4d75af5b49b6187ecb70bd658728e;p=vpp.git

memif: fix tx desc length for chained buffers in copy mode

When enqueuing chained buffer, we must update the descriptor length for
each fragment descriptor in addition to the last.

Type: fix

Change-Id: I9bc95fe557a049eeea4abd41c695153632d52a52
Signed-off-by: Benoît Ganne <bganne@cisco.com>
---

diff --git a/src/plugins/memif/device.c b/src/plugins/memif/device.c
index 8e902feac08..fce4ab22004 100644
--- a/src/plugins/memif/device.c
+++ b/src/plugins/memif/device.c
@@ -177,6 +177,7 @@ retry:
 		{
 		  slot++;
 		  free_slots--;
+		  d0->length = dst_off;
 		  d0->flags = MEMIF_DESC_FLAG_NEXT;
 		  d0 = &ring->desc[slot & mask];
 		  dst_off = 0;