commit fe7d4a2e31529eed5416b38b520fdc84687df03c
author Damjan Marion <damarion@cisco.com> Fri Apr 13 19:43:39 2018 +0200
committer Damjan Marion <damarion@cisco.com> Fri Apr 13 19:45:57 2018 +0200
tree dd3e603fc305d486840f844d919c87f5d0b4b101
parent bca9290056b1ee206a05c13bbb46b1b40a8bd804

Revert "MTU: Setting of MTU on software interface (instead of hardware interface)"

This reverts commit 70083ee74c3141bbefb185525315f1b34497dcaa.

Reverting as this patch is causing following crash:

0: /home/damarion/cisco/vpp3/build-data/../src/vnet/devices/devices.h:131 (vnet_get_device_input_thread_index) assertion `queue_id < vec_len (hw->input_node_thread_index_by_queue)' fails
Aborted

Change-Id: Ie2a365032110b1f67be7a9d832885b9899813d39
Signed-off-by: Damjan Marion <damarion@cisco.com>

src/vnet/unix/tapcli.c

diff --git a/src/vnet/unix/tapcli.c b/src/vnet/unix/tapcli.c
index 5c550bc..10a86a4 100644
--- a/src/vnet/unix/tapcli.c
+++ b/src/vnet/unix/tapcli.c
@@ -1068,9 +1068,8 @@
     hw = vnet_get_hw_interface (tm->vnet_main, ti->hw_if_index);
     hw->min_supported_packet_bytes = TAP_MTU_MIN;
     hw->max_supported_packet_bytes = TAP_MTU_MAX;
-    vnet_sw_interface_set_mtu (tm->vnet_main, hw->sw_if_index,
-			       hw->max_supported_packet_bytes -
-			       sizeof (ethernet_header_t));
+    hw->max_l3_packet_bytes[VLIB_RX] = hw->max_l3_packet_bytes[VLIB_TX] =
+      hw->max_supported_packet_bytes - sizeof (ethernet_header_t);
     ti->sw_if_index = hw->sw_if_index;
     if (ap->sw_if_indexp)
       *(ap->sw_if_indexp) = hw->sw_if_index;