Handle support of PCI FLR capability (#517)

* Handle support of PCI FLR capability

If device supports FLR cap then call vfu_reset_cb_t when FLR is
initiated by client.

Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/include/libvfio-user.h b/include/libvfio-user.h
index 6cb817d..009ba83 100644
--- a/include/libvfio-user.h
+++ b/include/libvfio-user.h
@@ -317,12 +317,18 @@ typedef enum vfu_reset_type {
      * reset to a known-good initial state (including any PCI register state).
      */
     VFU_RESET_DEVICE,
+
     /*
      * The vfio-user socket client connection was closed or reset. The attached
      * context is cleaned up after returning from the reset callback, and
      * vfu_attach_ctx() must be called to establish a new client.
      */
-    VFU_RESET_LOST_CONN
+    VFU_RESET_LOST_CONN,
+
+    /*
+     * Client requested to initiate PCI function level reset.
+     */
+    VFU_RESET_PCI_FLR
 } vfu_reset_type_t;
 
 /*