xnu-1504.9.37.tar.gz

[apple/xnu.git] / bsd / kern / kpi_mbuf.c

diff --git a/bsd/kern/kpi_mbuf.c b/bsd/kern/kpi_mbuf.c
index d468e81cb7149789de22dc49ec91f0736a59d741..a89cfbef0826c6da8a2fdd31bcb40f4828094f3e 100644 (file)
--- a/bsd/kern/kpi_mbuf.c
+++ b/bsd/kern/kpi_mbuf.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2004-2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2004-2010 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -83,7 +83,7 @@ errno_t mbuf_align_32(mbuf_t mbuf, size_t len)
 
 addr64_t mbuf_data_to_physical(void* ptr)
 {
-       return (addr64_t)(intptr_t)mcl_to_paddr(ptr);
+       return (addr64_t)(uintptr_t)mcl_to_paddr(ptr);
 }
 
 errno_t mbuf_get(mbuf_how_t how, mbuf_type_t type, mbuf_t *mbuf)
@@ -1071,3 +1071,70 @@ mbuf_get_mhlen(void)
 {
        return (_MHLEN);
 }
+
+mbuf_priority_t
+mbuf_get_priority(struct mbuf *m)
+{
+#if !PKT_PRIORITY
+#pragma unused(m)
+       return (MBUF_PRIORITY_NORMAL);
+#else /* PKT_PRIORITY */
+       mbuf_priority_t prio = MBUF_PRIORITY_NORMAL;
+
+       if (m == NULL || !(m->m_flags & M_PKTHDR))
+               return (prio);
+
+       /* Defaults to normal; ignore anything else but background */
+       if (m->m_pkthdr.prio == MBUF_PRIORITY_BACKGROUND)
+               prio = MBUF_PRIORITY_BACKGROUND;
+
+       return (prio);
+#endif /* PKT_PRIORITY */
+}
+
+mbuf_traffic_class_t 
+mbuf_get_traffic_class(mbuf_t m)
+{
+#if !PKT_PRIORITY
+#pragma unused(m)
+       return (MBUF_TC_BE);
+#else /* PKT_PRIORITY */
+       mbuf_priority_t prio = MBUF_TC_BE;
+
+       if (m == NULL || !(m->m_flags & M_PKTHDR))
+               return (prio);
+
+       if (m->m_pkthdr.prio <= MBUF_TC_VO)
+               prio = m->m_pkthdr.prio;
+
+       return (prio);
+#endif /* PKT_PRIORITY */
+}
+
+errno_t 
+mbuf_set_traffic_class(mbuf_t m, mbuf_traffic_class_t tc)
+{
+#if !PKT_PRIORITY
+#pragma unused(m)
+#pragma unused(tc)
+       return 0;
+#else /* PKT_PRIORITY */
+       errno_t error = 0;
+       
+       if (m == NULL || !(m->m_flags & M_PKTHDR))
+               return EINVAL;
+
+       switch (tc) {
+               case MBUF_TC_BE:
+               case MBUF_TC_BK:
+               case MBUF_TC_VI:
+               case MBUF_TC_VO:
+                       m->m_pkthdr.prio = tc;
+                       break;
+               default:
+                       error = EINVAL;
+                       break;
+       }
+       return error;
+#endif /* PKT_PRIORITY */
+}