dpdk: move DPDK vfio hack to dpdk plugin

Change-Id: I806cbf8c6c49643fe6c317bcceab93c1b9d441ab
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vlib/linux/vfio.c b/src/vlib/linux/vfio.c
index e39bf01..621dfb2 100644
--- a/src/vlib/linux/vfio.c
+++ b/src/vlib/linux/vfio.c
@@ -73,7 +73,7 @@
 	  int rv;
 	  dm.vaddr = pointer_to_uword (pr->mem) + (i << pr->log2_page_size);
 	  dm.size = 1 << pr->log2_page_size;
-	  dm.iova = pr->page_table[i];
+	  dm.iova = dm.vaddr;
 	  if ((rv = ioctl (fd, VFIO_IOMMU_MAP_DMA, &dm)))
 	    return rv;
         }
@@ -82,30 +82,6 @@
   return 0;
 }
 
-static clib_error_t *
-scan_vfio_fd (void *arg, u8 * path_name, u8 * file_name)
-{
-  linux_vfio_main_t *lvm = &vfio_main;
-  const char fn[] = "/dev/vfio/vfio";
-  char buff[sizeof (fn)] = { 0 };
-  int fd;
-  u8 *path = format (0, "%v%c", path_name, 0);
-
-  if (readlink ((char *) path, buff, sizeof (fn)) + 1 != sizeof (fn))
-    goto done;
-
-  if (strncmp (fn, buff, sizeof (fn)))
-    goto done;
-
-  fd = atoi ((char *) file_name);
-  if (fd != lvm->container_fd)
-    lvm->ext_container_fd = atoi ((char *) file_name);
-
-done:
-  vec_free (path);
-  return 0;
-}
-
 void
 linux_vfio_dma_map_regions (vlib_main_t * vm)
 {
@@ -113,12 +89,6 @@
 
   if (lvm->container_fd != -1)
     map_regions (vm, lvm->container_fd);
-
-  if (lvm->ext_container_fd == -1)
-    foreach_directory_file ("/proc/self/fd", scan_vfio_fd, 0, 0);
-
-  if (lvm->ext_container_fd != -1)
-    map_regions (vm, lvm->ext_container_fd);
 }
 
 static linux_pci_vfio_iommu_group_t *
@@ -252,8 +222,6 @@
   linux_vfio_main_t *lvm = &vfio_main;
   int fd;
 
-  lvm->ext_container_fd = -1;
-
   fd = open ("/dev/vfio/vfio", O_RDWR);
 
   /* check if iommu is available */