commit a0e8d9669e980c673f5302e7bff0c06b31d46b56
author Steven Luong <sluong@cisco.com> Mon May 18 17:12:56 2020 -0700
committer Paul Vinciguerra <pvinci@vinciconsulting.com> Tue Jun 16 01:37:56 2020 +0000
tree 93a12a433ff07eb91f9393b2c654984522d68a1d
parent 0cf528233ab9272d7153f7323bacae2d50313b1a

virtio: add vhost sw_if_index filter for sw_interface_vhost_user_dump

The filter sw_if_index was in the API sw_interface_vhost_user_dump. But
it was never implemented in the backend. This patch is to add the backend,
vat, and custom dump support for the filter.

Type: feature

Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: Iaa41a7e11bfbcbb4c60092375e4b0dcf0950077b

src/vnet/devices/virtio/vhost_user.api

diff --git a/src/vnet/devices/virtio/vhost_user.api b/src/vnet/devices/virtio/vhost_user.api
index 127b0a2..338fd71 100644
--- a/src/vnet/devices/virtio/vhost_user.api
+++ b/src/vnet/devices/virtio/vhost_user.api
@@ -115,7 +115,7 @@
 };
 
 /** \brief Vhost-user interface dump request
-    @param sw_if_index - filter by sw_if_index UNIMPLEMENTED
+    @param sw_if_index - filter by sw_if_index
 */
 define sw_interface_vhost_user_dump
 {

src/vnet/devices/virtio/vhost_user_api.c

diff --git a/src/vnet/devices/virtio/vhost_user_api.c b/src/vnet/devices/virtio/vhost_user_api.c
index 6736533..80fe554 100644
--- a/src/vnet/devices/virtio/vhost_user_api.c
+++ b/src/vnet/devices/virtio/vhost_user_api.c
@@ -211,7 +211,7 @@
 
   filter_sw_if_index = htonl (mp->sw_if_index);
   if (filter_sw_if_index != ~0)
-    return;			/* UNIMPLEMENTED */
+    VALIDATE_SW_IF_INDEX (mp);
 
   rv = vhost_user_dump_ifs (vnm, vm, &ifaces);
   if (rv)
@@ -219,8 +219,11 @@
 
   vec_foreach (vuid, ifaces)
   {
-    send_sw_interface_vhost_user_details (am, reg, vuid, mp->context);
+    if ((filter_sw_if_index == ~0) ||
+	(vuid->sw_if_index == filter_sw_if_index))
+      send_sw_interface_vhost_user_details (am, reg, vuid, mp->context);
   }
+  BAD_SW_IF_INDEX_LABEL;
   vec_free (ifaces);
 }