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authorAndreas Schultz <andreas.schultz@travelping.com>2019-07-15 15:40:56 +0200
committerDave Barach <openvpp@barachs.net>2019-07-18 15:07:26 +0000
commit58b2eb1af562c292feb6d3cdce4656746e61da75 (patch)
treeba2d239dd4a2d4673ef1352143d1133a9f88ccd4 /src/vlib/node.h
parenta0cb32cb9fba93ec4b91e7d227c07d1b2099091b (diff)
vlib: convert frame_index into real pointers
The fast path almost always has to deal with the real pointers. Deriving the frame pointer from a frame_index requires a load of the 32bit frame_index from memory, another 64bit load of the heap base pointer and some calculations. Lets store the full pointer instead and do a single 64bit load only. This helps avoiding problems when the heap is grown and frames are allocated below vm->heap_aligned_base. Type: refactor Change-Id: Ifa6e6e984aafe1e2755bff80f0a4dfcddee3623c Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com> Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vlib/node.h')
-rw-r--r--src/vlib/node.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/src/vlib/node.h b/src/vlib/node.h
index 4264a1ba1a5..bec0ed2d2c0 100644
--- a/src/vlib/node.h
+++ b/src/vlib/node.h
@@ -400,8 +400,8 @@ typedef struct vlib_frame_t
typedef struct
{
- /* Frame index. */
- u32 frame_index;
+ /* Frame pointer. */
+ vlib_frame_t *frame;
/* Node runtime for this next. */
u32 node_runtime_index;
@@ -440,7 +440,6 @@ always_inline void
vlib_next_frame_init (vlib_next_frame_t * nf)
{
clib_memset (nf, 0, sizeof (nf[0]));
- nf->frame_index = ~0;
nf->node_runtime_index = ~0;
}
@@ -451,7 +450,7 @@ typedef struct
u32 node_runtime_index;
/* Frame index (in the heap). */
- u32 frame_index;
+ vlib_frame_t *frame;
/* Start of next frames for this node. */
u32 next_frame_index;
@@ -537,8 +536,8 @@ typedef struct
/* Number of allocated frames for this scalar/vector size. */
u32 n_alloc_frames;
- /* Vector of free frame indices for this scalar/vector size. */
- u32 *free_frame_indices;
+ /* Vector of free frames for this scalar/vector size. */
+ vlib_frame_t **free_frames;
} vlib_frame_size_t;
typedef struct