From: Mohsin Kazmi <sykazmi@cisco.com>
Date: Thu, 3 Dec 2020 10:35:23 +0000 (+0100)
Subject: virtio: fix the len offset
X-Git-Tag: v21.06-rc0~64
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=a17381a41d17fd813df77b97102b18127731b013;p=vpp.git

virtio: fix the len offset

Type: fix

Change-Id: I8ce1df5c97941fb645b33476db9cfc74f1395b15
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
---

diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c
index a45b52c2eab..1e75ca47586 100644
--- a/src/vnet/devices/virtio/node.c
+++ b/src/vnet/devices/virtio/node.c
@@ -472,8 +472,8 @@ virtio_device_input_gso_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
 		{
 		  increment_last (last, packed, vring);
 		  u16 cslot = virtio_get_slot_id (vring, packed, last, mask);
-		  u16 clen =
-		    virtio_get_len (vring, packed, hdr_sz, last, mask);
+		  /* hdr size is 0 after 1st packet in chain buffers */
+		  u16 clen = virtio_get_len (vring, packed, 0, last, mask);
 		  u32 cbi = vring->buffers[cslot];
 		  cb = vlib_get_buffer (vm, cbi);