009-08-05 Chris Johns <chrisj@rtems.org>

        * libmisc/dummy/dummy-networking.c: New.
        * libmisc/dummy/dummy.c, libmisc/Makefile.am: Move
        trhe networking configuration into a separate file so
        configuration varations do not cause conflicts.
        * score/inline/rtems/score/object.inl,
        score/include/rtems/score/object.h: Remove warnings.
        * score/inline/rtems/score/object.inl: Add _Chain_First,
        _Chain_Last, _Chain_Mext, and _Chain_Previous.
        * sapi/inline/rtems/chain.inl: Add rtems_chain_first,
        rtems_chain_last, rtems_chain_mext, and rtems_chain_previous.
        * libblock/include/rtems/diskdevs.h: Remove the bdbuf pool id and
        block_size_log2. Add media_block_size.
        * libblock/src/diskdevs.c: Remove size restrictions on block
        size. Add media block size initialisation. Remove comment to clean
        up the bdbuf cache.
        * libblock/src/blkdev.c: Remove references to
        block_size_log2. Allow any block size.
        * libblock/include/rtems/bdbuf.h, libblock/src/bdbuf.c: Remove all
        references to pools and make the cache handle demand driver
        variable buffer size allocation. Added worker threads support the
        swapout task.
        * sapi/include/confdefs.h: Updated the bdbuf configutation.

2 files changed, 83 insertions, 20 deletions

diff --git a/cpukit/sapi/include/confdefs.h b/cpukit/sapi/include/confdefs.h
index 6cc93086e0..c8f5c57d5d 100644
--- a/cpukit/sapi/include/confdefs.h
+++ b/cpukit/sapi/include/confdefs.h
@@ -727,32 +727,45 @@ rtems_fs_init_functions_t    rtems_fs_init_helper =
     #define CONFIGURE_SWAPOUT_BLOCK_HOLD \
                               RTEMS_BDBUF_SWAPOUT_TASK_BLOCK_HOLD_DEFAULT
   #endif
+  #ifndef CONFIGURE_SWAPOUT_WORKER_TASKS
+    #define CONFIGURE_SWAPOUT_WORKER_TASKS \
+                              RTEMS_BDBUF_SWAPOUT_WORKER_TASKS_DEFAULT
+  #endif
+  #ifndef CONFIGURE_SWAPOUT_WORKER_TASK_PRIORITY
+    #define CONFIGURE_SWAPOUT_WORKER_TASK_PRIORITY \
+                              RTEMS_BDBUF_SWAPOUT_WORKER_TASK_PRIORITY_DEFAULT
+  #endif
+  #ifndef CONFIGURE_BDBUF_CACHE_MEMORY_SIZE
+    #define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE \
+                              RTEMS_BDBUF_CACHE_MEMORY_SIZE_DEFAULT
+  #endif
+  #ifndef CONFIGURE_BDBUF_BUFFER_MIN_SIZE
+    #define CONFIGURE_BDBUF_BUFFER_MIN_SIZE \
+                              RTEMS_BDBUF_BUFFER_MIN_SIZE_DEFAULT
+  #endif
+  #ifndef CONFIGURE_BDBUF_BUFFER_MAX_SIZE
+    #define CONFIGURE_BDBUF_BUFFER_MAX_SIZE \
+                              RTEMS_BDBUF_BUFFER_MAX_SIZE_DEFAULT
+  #endif
   #ifdef CONFIGURE_INIT
-    rtems_bdbuf_config rtems_bdbuf_configuration = { 
+    const rtems_bdbuf_config rtems_bdbuf_configuration = { 
       CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS,
       CONFIGURE_BDBUF_MAX_WRITE_BLOCKS,
       CONFIGURE_SWAPOUT_TASK_PRIORITY,
       CONFIGURE_SWAPOUT_SWAP_PERIOD,
-      CONFIGURE_SWAPOUT_BLOCK_HOLD
+      CONFIGURE_SWAPOUT_BLOCK_HOLD,
+      CONFIGURE_SWAPOUT_WORKER_TASKS,
+      CONFIGURE_SWAPOUT_WORKER_TASK_PRIORITY,
+      CONFIGURE_BDBUF_CACHE_MEMORY_SIZE,
+      CONFIGURE_BDBUF_BUFFER_MIN_SIZE,
+      CONFIGURE_BDBUF_BUFFER_MAX_SIZE
     };
   #endif
-  #ifndef CONFIGURE_HAS_OWN_BDBUF_TABLE
-    #ifndef CONFIGURE_BDBUF_BUFFER_COUNT
-      #define CONFIGURE_BDBUF_BUFFER_COUNT 64
-    #endif
-
-    #ifndef CONFIGURE_BDBUF_BUFFER_SIZE
-      #define CONFIGURE_BDBUF_BUFFER_SIZE 512
-    #endif
-    #ifdef CONFIGURE_INIT
-      rtems_bdbuf_pool_config rtems_bdbuf_pool_configuration[] = {
-        {CONFIGURE_BDBUF_BUFFER_SIZE, CONFIGURE_BDBUF_BUFFER_COUNT, NULL}
-      };
-      size_t rtems_bdbuf_pool_configuration_size = 
-        (sizeof(rtems_bdbuf_pool_configuration) /
-         sizeof(rtems_bdbuf_pool_configuration[0]));
-    #endif /* CONFIGURE_INIT */
-  #endif /* CONFIGURE_HAS_OWN_BDBUF_TABLE        */
+  #if defined(CONFIGURE_HAS_OWN_BDBUF_TABLE) || \
+      defined(CONFIGURE_BDBUF_BUFFER_SIZE) || \
+      defined(CONFIGURE_BDBUF_BUFFER_COUNT)
+    #error BDBUF Cache does not use a buffer configuration table. Please remove.
+  #endif
 #endif /* CONFIGURE_APPLICATION_NEEDS_LIBBLOCK */
 
 #if defined(RTEMS_MULTIPROCESSING)
diff --git a/cpukit/sapi/inline/rtems/chain.inl b/cpukit/sapi/inline/rtems/chain.inl
index ff4808cecf..7230eb032e 100644
--- a/cpukit/sapi/inline/rtems/chain.inl
+++ b/cpukit/sapi/inline/rtems/chain.inl
@@ -96,7 +96,7 @@ RTEMS_INLINE_ROUTINE bool rtems_chain_is_null_node(
  *
  *  @param[in] the_chain is the chain to be operated upon.
  *
- *  @return This method returns the permanent head node of the chain.
+ *  @return This method returns the permanent  node of the chain.
  */
 RTEMS_INLINE_ROUTINE rtems_chain_node *rtems_chain_head(
   rtems_chain_control *the_chain
@@ -122,6 +122,56 @@ RTEMS_INLINE_ROUTINE rtems_chain_node *rtems_chain_tail(
 }
 
 /**
+ *  @brief Return pointer to Chain's First node after the permanent head.
+ *
+ *  This function returns a pointer to the first node on the chain after the
+ *  head.
+ *
+ *  @param[in] the_chain is the chain to be operated upon.
+ *
+ *  @return This method returns the first node of the chain.
+ */
+RTEMS_INLINE_ROUTINE rtems_chain_node *rtems_chain_first(
+  rtems_chain_control *the_chain
+)
+{
+  return _Chain_First( the_chain );
+}
+
+/**
+ *  @brief Return pointer to Chain's Last node before the permanent tail.
+ *
+ *  This function returns a pointer to the last node on the chain just before
+ *  the tail.
+ *
+ *  @param[in] the_chain is the chain to be operated upon.
+ *
+ *  @return This method returns the last node of the chain.
+ */
+RTEMS_INLINE_ROUTINE rtems_chain_node *rtems_chain_last(
+  rtems_chain_control *the_chain
+)
+{
+  return _Chain_Last( the_chain );
+}
+
+/**
+ *  @brief Return pointer the next node from this node
+ *
+ *  This function returns a pointer to the next node after this node.
+ *
+ *  @param[in] the_node is the node to be operated upon.
+ *
+ *  @return This method returns the next node on the chain.
+ */
+RTEMS_INLINE_ROUTINE rtems_chain_node *rtems_chain_next(
+  rtems_chain_node *the_node
+)
+{
+  return _Chain_Next( the_node );
+}
+
+/**
  *  @brief Are Two Nodes Equal
  *
  *  This function returns true if @a left and @a right are equal,