X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvlib%2Fbuffer.h;h=e5c1d21397b115b0702f8bb401e07afa9483fc11;hb=71612d61930e57e7c8ebf9e5647b15a4b23720b2;hp=b20538b7f8ccedd72e8a2f9720a9bf58be5476c7;hpb=04a7f05e91e919f51eaecaee476435484076655b;p=vpp.git

diff --git a/src/vlib/buffer.h b/src/vlib/buffer.h
index b20538b7f8c..e5c1d21397b 100644
--- a/src/vlib/buffer.h
+++ b/src/vlib/buffer.h
@@ -44,6 +44,7 @@
 #include <vppinfra/cache.h>
 #include <vppinfra/serialize.h>
 #include <vppinfra/vector.h>
+#include <vppinfra/lock.h>
 #include <vlib/error.h>		/* for vlib_error_t */
 
 #include <vlib/config.h>	/* for __PRE_DATA_SIZE */
@@ -72,6 +73,7 @@ typedef struct
                           the end of this buffer.
                        */
   u32 flags; /**< buffer flags:
+                <br> VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index,
                 <br> VLIB_BUFFER_IS_TRACED: trace this buffer.
                 <br> VLIB_BUFFER_NEXT_PRESENT: this is a multi-chunk buffer.
                 <br> VLIB_BUFFER_TOTAL_LENGTH_VALID: as it says
@@ -82,28 +84,26 @@ typedef struct
                 set to avoid adding it to a flow report
                 <br> VLIB_BUFFER_FLAG_USER(n): user-defined bit N
              */
-#define VLIB_BUFFER_IS_TRACED (1 << 0)
-#define VLIB_BUFFER_LOG2_NEXT_PRESENT (1)
+
+/* any change to the following line requres update of
+ * vlib_buffer_get_free_list_index(...) and
+ * vlib_buffer_set_free_list_index(...) functions */
+#define VLIB_BUFFER_FREE_LIST_INDEX_MASK ((1 << 5) - 1)
+
+#define VLIB_BUFFER_IS_TRACED (1 << 5)
+#define VLIB_BUFFER_LOG2_NEXT_PRESENT (6)
 #define VLIB_BUFFER_NEXT_PRESENT (1 << VLIB_BUFFER_LOG2_NEXT_PRESENT)
-#define VLIB_BUFFER_IS_RECYCLED (1 << 2)
-#define VLIB_BUFFER_TOTAL_LENGTH_VALID (1 << 3)
-#define VLIB_BUFFER_REPL_FAIL (1 << 4)
-#define VLIB_BUFFER_RECYCLE (1 << 5)
-#define VLIB_BUFFER_FLOW_REPORT (1 << 6)
-#define VLIB_BUFFER_EXT_HDR_VALID (1 << 7)
+#define VLIB_BUFFER_IS_RECYCLED (1 << 7)
+#define VLIB_BUFFER_TOTAL_LENGTH_VALID (1 << 8)
+#define VLIB_BUFFER_REPL_FAIL (1 << 9)
+#define VLIB_BUFFER_RECYCLE (1 << 10)
+#define VLIB_BUFFER_FLOW_REPORT (1 << 11)
+#define VLIB_BUFFER_EXT_HDR_VALID (1 << 12)
 
   /* User defined buffer flags. */
 #define LOG2_VLIB_BUFFER_FLAG_USER(n) (32 - (n))
 #define VLIB_BUFFER_FLAG_USER(n) (1 << LOG2_VLIB_BUFFER_FLAG_USER(n))
 
-  u32 free_list_index; /**< Buffer free list that this buffer was
-                          allocated from and will be freed to.
-                       */
-
-  u32 total_length_not_including_first_buffer;
-  /**< Only valid for first buffer in chain. Current length plus
-     total length given here give total number of bytes in buffer chain.
-  */
     STRUCT_MARK (template_end);
 
   u32 next_buffer;   /**< Next buffer for this linked-list of buffers.
@@ -128,7 +128,7 @@ typedef struct
                           Before allocating any of it, discussion required!
                        */
 
-  u32 opaque[8]; /**< Opaque data used by sub-graphs for their own purposes.
+  u32 opaque[10]; /**< Opaque data used by sub-graphs for their own purposes.
                     See .../vnet/vnet/buffer.h
                  */
     CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
@@ -137,7 +137,13 @@ typedef struct
                       if VLIB_PACKET_IS_TRACED flag is set.
                    */
   u32 recycle_count; /**< Used by L2 path recycle code */
-  u32 opaque2[14];  /**< More opaque data, currently unused */
+
+  u32 total_length_not_including_first_buffer;
+  /**< Only valid for first buffer in chain. Current length plus
+     total length given here give total number of bytes in buffer chain.
+  */
+  u32 align_pad; /**< available */
+  u32 opaque2[12];  /**< More opaque data, see ../vnet/vnet/buffer.h */
 
   /***** end of second cache line */
     CLIB_CACHE_LINE_ALIGN_MARK (cacheline2);
@@ -345,6 +351,12 @@ typedef struct vlib_buffer_free_list_t
   /* Vector of free buffers.  Each element is a byte offset into I/O heap. */
   u32 *buffers;
 
+  /* global vector of free buffers, used only on main thread.
+     Bufers are returned to global buffers only in case when number of
+     buffers on free buffers list grows about threshold */
+  u32 *global_buffers;
+  clib_spinlock_t global_buffers_lock;
+
   /* Memory chunks allocated for this free list
      recorded here so they can be freed when free list
      is deleted. */
@@ -397,6 +409,7 @@ typedef struct
      buffer index */
   uword buffer_mem_start;
   uword buffer_mem_size;
+  vlib_physmem_region_index_t physmem_region;
 
   /* Buffer free callback, for subversive activities */
     u32 (*buffer_free_callback) (struct vlib_main_t * vm,
@@ -419,6 +432,7 @@ typedef struct
      If buffer index is not in hash table then this buffer
      has never been allocated. */
   uword *buffer_known_hash;
+  clib_spinlock_t buffer_known_hash_lockp;
 
   /* List of free-lists needing Blue Light Special announcements */
   vlib_buffer_free_list_t **announce_list;
@@ -430,7 +444,7 @@ typedef struct
 
 void vlib_buffer_add_mem_range (struct vlib_main_t *vm, uword start,
 				uword size);
-void vlib_buffer_cb_init (struct vlib_main_t *vm);
+clib_error_t *vlib_buffer_main_init (struct vlib_main_t *vm);
 
 typedef struct
 {
@@ -499,7 +513,11 @@ serialize_vlib_buffer_n_bytes (serialize_main_t * m)
 #define VLIB_BUFFER_TRACE_TRAJECTORY 0
 
 #if VLIB_BUFFER_TRACE_TRAJECTORY > 0
-#define VLIB_BUFFER_TRACE_TRAJECTORY_INIT(b) (b)->pre_data[0]=0
+extern void (*vlib_buffer_trace_trajectory_cb) (vlib_buffer_t * b, u32 index);
+extern void (*vlib_buffer_trace_trajectory_init_cb) (vlib_buffer_t * b);
+extern void vlib_buffer_trace_trajectory_init (vlib_buffer_t * b);
+#define VLIB_BUFFER_TRACE_TRAJECTORY_INIT(b) \
+  vlib_buffer_trace_trajectory_init (b);
 #else
 #define VLIB_BUFFER_TRACE_TRAJECTORY_INIT(b)
 #endif /* VLIB_BUFFER_TRACE_TRAJECTORY */