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authorFlorin Coras <fcoras@cisco.com>2020-12-09 12:51:13 -0800
committerDamjan Marion <dmarion@me.com>2020-12-26 16:58:10 +0000
commitaf588825ba4586fadbdb742953ca640e94cd59ef (patch)
treefc4e36bd9b9ef760247ec6e8ab41ba70f9e84152 /src/svm/svm_fifo.c
parent2c1084a69bccac812bf2d763b113d1e5b7f08686 (diff)
svm: change fifo pointers to offsets
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I113a630d6db4741f54e508f7e0ed77be139df0e4
Diffstat (limited to 'src/svm/svm_fifo.c')
-rw-r--r--src/svm/svm_fifo.c225
1 files changed, 118 insertions, 107 deletions
diff --git a/src/svm/svm_fifo.c b/src/svm/svm_fifo.c
index 2f910e0b95f..f79f37a4687 100644
--- a/src/svm/svm_fifo.c
+++ b/src/svm/svm_fifo.c
@@ -21,9 +21,11 @@
#include <svm/fifo_segment.h>
#include <vppinfra/cpu.h>
-CLIB_MARCH_FN (svm_fifo_copy_to_chunk, void, svm_fifo_t * f,
- svm_fifo_chunk_t * c, u32 tail_idx, const u8 * src, u32 len,
- svm_fifo_chunk_t ** last)
+#define F_INVALID_CPTR (svm_fifo_chunk_ptr_t) ~0ULL
+
+CLIB_MARCH_FN (svm_fifo_copy_to_chunk, void, svm_fifo_t *f,
+ svm_fifo_chunk_t *c, u32 tail_idx, const u8 *src, u32 len,
+ svm_fifo_chunk_ptr_t *last)
{
u32 n_chunk;
@@ -36,15 +38,15 @@ CLIB_MARCH_FN (svm_fifo_copy_to_chunk, void, svm_fifo_t * f,
{
u32 to_copy = len;
clib_memcpy_fast (&c->data[tail_idx], src, n_chunk);
- c = c->next;
+ c = f_cptr (f, c->next);
while ((to_copy -= n_chunk))
{
n_chunk = clib_min (c->length, to_copy);
clib_memcpy_fast (&c->data[0], src + (len - to_copy), n_chunk);
- c = c->length <= to_copy ? c->next : c;
+ c = c->length <= to_copy ? f_cptr (f, c->next) : c;
}
if (*last)
- *last = c;
+ *last = f_csptr (f, c);
}
else
{
@@ -52,9 +54,9 @@ CLIB_MARCH_FN (svm_fifo_copy_to_chunk, void, svm_fifo_t * f,
}
}
-CLIB_MARCH_FN (svm_fifo_copy_from_chunk, void, svm_fifo_t * f,
- svm_fifo_chunk_t * c, u32 head_idx, u8 * dst, u32 len,
- svm_fifo_chunk_t ** last)
+CLIB_MARCH_FN (svm_fifo_copy_from_chunk, void, svm_fifo_t *f,
+ svm_fifo_chunk_t *c, u32 head_idx, u8 *dst, u32 len,
+ svm_fifo_chunk_ptr_t *last)
{
u32 n_chunk;
@@ -67,17 +69,17 @@ CLIB_MARCH_FN (svm_fifo_copy_from_chunk, void, svm_fifo_t * f,
{
u32 to_copy = len;
clib_memcpy_fast (dst, &c->data[head_idx], n_chunk);
- c = c->next;
+ c = f_cptr (f, c->next);
while ((to_copy -= n_chunk))
{
CLIB_MEM_UNPOISON (c, sizeof (*c));
CLIB_MEM_UNPOISON (c->data, c->length);
n_chunk = clib_min (c->length, to_copy);
clib_memcpy_fast (dst + (len - to_copy), &c->data[0], n_chunk);
- c = c->length <= to_copy ? c->next : c;
+ c = c->length <= to_copy ? f_cptr (f, c->next) : c;
}
if (*last)
- *last = c;
+ *last = f_csptr (f, c);
}
else
{
@@ -88,16 +90,16 @@ CLIB_MARCH_FN (svm_fifo_copy_from_chunk, void, svm_fifo_t * f,
#ifndef CLIB_MARCH_VARIANT
static inline void
-svm_fifo_copy_to_chunk (svm_fifo_t * f, svm_fifo_chunk_t * c, u32 tail_idx,
- const u8 * src, u32 len, svm_fifo_chunk_t ** last)
+svm_fifo_copy_to_chunk (svm_fifo_t *f, svm_fifo_chunk_t *c, u32 tail_idx,
+ const u8 *src, u32 len, svm_fifo_chunk_ptr_t *last)
{
CLIB_MARCH_FN_SELECT (svm_fifo_copy_to_chunk) (f, c, tail_idx, src, len,
last);
}
static inline void
-svm_fifo_copy_from_chunk (svm_fifo_t * f, svm_fifo_chunk_t * c, u32 head_idx,
- u8 * dst, u32 len, svm_fifo_chunk_t ** last)
+svm_fifo_copy_from_chunk (svm_fifo_t *f, svm_fifo_chunk_t *c, u32 head_idx,
+ u8 *dst, u32 len, svm_fifo_chunk_ptr_t *last)
{
CLIB_MARCH_FN_SELECT (svm_fifo_copy_from_chunk) (f, c, head_idx, dst, len,
last);
@@ -387,17 +389,17 @@ svm_fifo_init (svm_fifo_t * f, u32 size)
/*
* Initialize chunks
*/
- f->shr->start_chunk->start_byte = 0;
- prev = f->shr->start_chunk;
+ prev = f_start_cptr (f);
+ prev->start_byte = 0;
prev->enq_rb_index = prev->deq_rb_index = RBTREE_TNIL_INDEX;
- c = prev->next;
+ c = f_cptr (f, prev->next);
while (c)
{
c->start_byte = prev->start_byte + prev->length;
c->enq_rb_index = c->deq_rb_index = RBTREE_TNIL_INDEX;
prev = c;
- c = c->next;
+ c = f_cptr (f, c->next);
}
}
@@ -447,7 +449,7 @@ svm_fifo_alloc (u32 data_size_in_bytes)
c->length = data_size_in_bytes;
c->enq_rb_index = RBTREE_TNIL_INDEX;
c->deq_rb_index = RBTREE_TNIL_INDEX;
- f->shr->start_chunk = f->shr->end_chunk = c;
+ f->shr->start_chunk = f->shr->end_chunk = f_csptr (f, c);
return f;
}
@@ -486,9 +488,9 @@ svm_fifo_find_chunk (svm_fifo_t * f, u32 pos)
{
svm_fifo_chunk_t *c;
- c = f->shr->start_chunk;
+ c = f_start_cptr (f);
while (c && !f_chunk_includes_pos (c, pos))
- c = c->next;
+ c = f_cptr (f, c->next);
return c;
}
@@ -502,7 +504,7 @@ svm_fifo_find_next_chunk (svm_fifo_t * f, svm_fifo_chunk_t * start, u32 pos)
c = start;
while (c && !f_chunk_includes_pos (c, pos))
- c = c->next;
+ c = f_cptr (f, c->next);
return c;
}
@@ -513,17 +515,16 @@ svm_fifo_max_read_chunk (svm_fifo_t * f)
u32 head, tail, end_chunk;
f_load_head_tail_cons (f, &head, &tail);
- ASSERT (!f->shr->head_chunk ||
- f_chunk_includes_pos (f->shr->head_chunk, head));
+ ASSERT (!f->shr->head_chunk || f_chunk_includes_pos (f_head_cptr (f), head));
if (!f->shr->head_chunk)
{
- f->shr->head_chunk = svm_fifo_find_chunk (f, head);
+ f->shr->head_chunk = f_csptr (f, svm_fifo_find_chunk (f, head));
if (PREDICT_FALSE (!f->shr->head_chunk))
return 0;
}
- end_chunk = f_chunk_end (f->shr->head_chunk);
+ end_chunk = f_chunk_end (f_head_cptr (f));
return f_pos_lt (end_chunk, tail) ? end_chunk - head : tail - head;
}
@@ -531,13 +532,15 @@ svm_fifo_max_read_chunk (svm_fifo_t * f)
u32
svm_fifo_max_write_chunk (svm_fifo_t * f)
{
+ svm_fifo_chunk_t *tail_chunk;
u32 head, tail;
f_load_head_tail_prod (f, &head, &tail);
- ASSERT (!f->shr->tail_chunk ||
- f_chunk_includes_pos (f->shr->tail_chunk, tail));
+ tail_chunk = f_tail_cptr (f);
+
+ ASSERT (!tail_chunk || f_chunk_includes_pos (tail_chunk, tail));
- return f->shr->tail_chunk ? f_chunk_end (f->shr->tail_chunk) - tail : 0;
+ return tail_chunk ? f_chunk_end (tail_chunk) - tail : 0;
}
static rb_node_t *
@@ -607,13 +610,13 @@ f_update_ooo_enq (svm_fifo_t * f, u32 start_pos, u32 end_pos)
/* Use linear search if rbtree is not initialized */
if (PREDICT_FALSE (!rb_tree_is_init (rt)))
{
- f->ooo_enq = svm_fifo_find_next_chunk (f, f->shr->tail_chunk, start_pos);
+ f->ooo_enq = svm_fifo_find_next_chunk (f, f_tail_cptr (f), start_pos);
return;
}
if (rt->root == RBTREE_TNIL_INDEX)
{
- c = f->shr->tail_chunk;
+ c = f_tail_cptr (f);
ASSERT (c->enq_rb_index == RBTREE_TNIL_INDEX);
c->enq_rb_index = rb_tree_add_custom (rt, c->start_byte,
pointer_to_uword (c), f_pos_lt);
@@ -633,7 +636,7 @@ f_update_ooo_enq (svm_fifo_t * f, u32 start_pos, u32 end_pos)
do
{
- c = c->next;
+ c = f_cptr (f, c->next);
if (!c || c->enq_rb_index != RBTREE_TNIL_INDEX)
break;
@@ -662,7 +665,7 @@ f_update_ooo_deq (svm_fifo_t * f, u32 start_pos, u32 end_pos)
if (rt->root == RBTREE_TNIL_INDEX)
{
- c = f->shr->start_chunk;
+ c = f_start_cptr (f);
ASSERT (c->deq_rb_index == RBTREE_TNIL_INDEX);
c->deq_rb_index = rb_tree_add_custom (rt, c->start_byte,
pointer_to_uword (c), f_pos_lt);
@@ -682,7 +685,7 @@ f_update_ooo_deq (svm_fifo_t * f, u32 start_pos, u32 end_pos)
do
{
- c = c->next;
+ c = f_cptr (f, c->next);
if (!c || c->deq_rb_index != RBTREE_TNIL_INDEX)
break;
@@ -713,7 +716,7 @@ f_lookup_clear_enq_chunks (svm_fifo_t * f, svm_fifo_chunk_t * start,
c->enq_rb_index = RBTREE_TNIL_INDEX;
}
- c = c->next;
+ c = f_cptr (f, c->next);
}
/* No ooo segments left, so make sure the current chunk
@@ -747,7 +750,7 @@ f_lookup_clear_deq_chunks (svm_fifo_t * f, svm_fifo_chunk_t * start,
c->deq_rb_index = RBTREE_TNIL_INDEX;
}
- c = c->next;
+ c = f_cptr (f, c->next);
}
return c;
@@ -785,18 +788,19 @@ svm_fifo_overwrite_head (svm_fifo_t * f, u8 * src, u32 len)
f_load_head_tail_cons (f, &head, &tail);
if (!f->shr->head_chunk)
- f->shr->head_chunk = svm_fifo_find_chunk (f, head);
+ f->shr->head_chunk = f_csptr (f, svm_fifo_find_chunk (f, head));
- c = f->shr->head_chunk;
+ c = f_head_cptr (f);
head_idx = head - c->start_byte;
n_chunk = c->length - head_idx;
if (len <= n_chunk)
clib_memcpy_fast (&c->data[head_idx], src, len);
else
{
- ASSERT (len - n_chunk <= c->next->length);
+ ASSERT (len - n_chunk <= f_cptr (f, c->next)->length);
clib_memcpy_fast (&c->data[head_idx], src, n_chunk);
- clib_memcpy_fast (&c->next->data[0], src + n_chunk, len - n_chunk);
+ clib_memcpy_fast (&f_cptr (f, c->next)->data[0], src + n_chunk,
+ len - n_chunk);
}
}
@@ -806,7 +810,8 @@ f_try_chunk_alloc (svm_fifo_t * f, u32 head, u32 tail, u32 len)
svm_fifo_chunk_t *c, *cur, *prev;
u32 alloc_size, free_alloced;
- free_alloced = f_chunk_end (f->shr->end_chunk) - tail;
+ prev = f_end_cptr (f);
+ free_alloced = f_chunk_end (prev) - tail;
alloc_size = clib_min (f->shr->min_alloc, f->shr->size - (tail - head));
alloc_size = clib_max (alloc_size, len - free_alloced);
@@ -816,7 +821,6 @@ f_try_chunk_alloc (svm_fifo_t * f, u32 head, u32 tail, u32 len)
return -1;
cur = c;
- prev = f->shr->end_chunk;
while (cur)
{
@@ -825,15 +829,15 @@ f_try_chunk_alloc (svm_fifo_t * f, u32 head, u32 tail, u32 len)
cur->deq_rb_index = RBTREE_TNIL_INDEX;
prev = cur;
- cur = cur->next;
+ cur = f_cptr (f, cur->next);
}
+ f_csptr_link (f, f->shr->end_chunk, c);
prev->next = 0;
- f->shr->end_chunk->next = c;
- f->shr->end_chunk = prev;
+ f->shr->end_chunk = f_csptr (f, prev);
if (!f->shr->tail_chunk)
- f->shr->tail_chunk = c;
+ f->shr->tail_chunk = f_csptr (f, c);
return 0;
}
@@ -857,20 +861,19 @@ svm_fifo_enqueue (svm_fifo_t * f, u32 len, const u8 * src)
/* number of bytes we're going to copy */
len = clib_min (free_count, len);
- if (f_pos_gt (tail + len, f_chunk_end (f->shr->end_chunk)))
+ if (f_pos_gt (tail + len, f_chunk_end (f_end_cptr (f))))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, len)))
{
- len = f_chunk_end (f->shr->end_chunk) - tail;
+ len = f_chunk_end (f_end_cptr (f)) - tail;
if (!len)
return SVM_FIFO_EGROW;
}
}
- old_tail_c = f->shr->tail_chunk;
+ old_tail_c = f_tail_cptr (f);
- svm_fifo_copy_to_chunk (f, f->shr->tail_chunk, tail, src, len,
- &f->shr->tail_chunk);
+ svm_fifo_copy_to_chunk (f, old_tail_c, tail, src, len, &f->shr->tail_chunk);
tail = tail + len;
svm_fifo_trace_add (f, head, len, 2);
@@ -880,7 +883,8 @@ svm_fifo_enqueue (svm_fifo_t * f, u32 len, const u8 * src)
{
len += ooo_segment_try_collect (f, len, &tail);
/* Tail chunk might've changed even if nothing was collected */
- f->shr->tail_chunk = f_lookup_clear_enq_chunks (f, old_tail_c, tail);
+ f->shr->tail_chunk =
+ f_csptr (f, f_lookup_clear_enq_chunks (f, old_tail_c, tail));
f->ooo_enq = 0;
}
@@ -901,6 +905,7 @@ int
svm_fifo_enqueue_with_offset (svm_fifo_t * f, u32 offset, u32 len, u8 * src)
{
u32 tail, head, free_count, enq_pos;
+ svm_fifo_chunk_ptr_t last = F_INVALID_CPTR;
f_load_head_tail_prod (f, &head, &tail);
@@ -914,7 +919,7 @@ svm_fifo_enqueue_with_offset (svm_fifo_t * f, u32 offset, u32 len, u8 * src)
enq_pos = tail + offset;
- if (f_pos_gt (enq_pos + len, f_chunk_end (f->shr->end_chunk)))
+ if (f_pos_gt (enq_pos + len, f_chunk_end (f_end_cptr (f))))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, offset + len)))
return SVM_FIFO_EGROW;
@@ -926,7 +931,9 @@ svm_fifo_enqueue_with_offset (svm_fifo_t * f, u32 offset, u32 len, u8 * src)
if (!f->ooo_enq || !f_chunk_includes_pos (f->ooo_enq, enq_pos))
f_update_ooo_enq (f, enq_pos, enq_pos + len);
- svm_fifo_copy_to_chunk (f, f->ooo_enq, enq_pos, src, len, &f->ooo_enq);
+ svm_fifo_copy_to_chunk (f, f->ooo_enq, enq_pos, src, len, &last);
+ if (last != F_INVALID_CPTR)
+ f->ooo_enq = f_cptr (f, last);
return 0;
}
@@ -947,13 +954,13 @@ svm_fifo_enqueue_nocopy (svm_fifo_t * f, u32 len)
if (rb_tree_is_init (&f->ooo_enq_lookup))
{
f->shr->tail_chunk =
- f_lookup_clear_enq_chunks (f, f->shr->tail_chunk, tail);
+ f_csptr (f, f_lookup_clear_enq_chunks (f, f_tail_cptr (f), tail));
f->ooo_enq = 0;
}
else
{
f->shr->tail_chunk =
- svm_fifo_find_next_chunk (f, f->shr->tail_chunk, tail);
+ f_csptr (f, svm_fifo_find_next_chunk (f, f_tail_cptr (f), tail));
}
/* store-rel: producer owned index (paired with load-acq in consumer) */
@@ -980,14 +987,14 @@ svm_fifo_enqueue_segments (svm_fifo_t * f, const svm_fifo_seg_t segs[],
for (i = 0; i < n_segs; i++)
len += segs[i].len;
- old_tail_c = f->shr->tail_chunk;
+ old_tail_c = f_tail_cptr (f);
if (!allow_partial)
{
if (PREDICT_FALSE (free_count < len))
return SVM_FIFO_EFULL;
- if (f_pos_gt (tail + len, f_chunk_end (f->shr->end_chunk)))
+ if (f_pos_gt (tail + len, f_chunk_end (f_end_cptr (f))))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, len)))
return SVM_FIFO_EGROW;
@@ -995,7 +1002,7 @@ svm_fifo_enqueue_segments (svm_fifo_t * f, const svm_fifo_seg_t segs[],
for (i = 0; i < n_segs; i++)
{
- svm_fifo_copy_to_chunk (f, f->shr->tail_chunk, tail, segs[i].data,
+ svm_fifo_copy_to_chunk (f, f_tail_cptr (f), tail, segs[i].data,
segs[i].len, &f->shr->tail_chunk);
tail += segs[i].len;
}
@@ -1004,11 +1011,11 @@ svm_fifo_enqueue_segments (svm_fifo_t * f, const svm_fifo_seg_t segs[],
{
len = clib_min (free_count, len);
- if (f_pos_gt (tail + len, f_chunk_end (f->shr->end_chunk)))
+ if (f_pos_gt (tail + len, f_chunk_end (f_end_cptr (f))))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, len)))
{
- len = f_chunk_end (f->shr->end_chunk) - tail;
+ len = f_chunk_end (f_end_cptr (f)) - tail;
if (!len)
return SVM_FIFO_EGROW;
}
@@ -1018,7 +1025,7 @@ svm_fifo_enqueue_segments (svm_fifo_t * f, const svm_fifo_seg_t segs[],
while (len)
{
u32 to_copy = clib_min (segs[i].len, len);
- svm_fifo_copy_to_chunk (f, f->shr->tail_chunk, tail, segs[i].data,
+ svm_fifo_copy_to_chunk (f, f_tail_cptr (f), tail, segs[i].data,
to_copy, &f->shr->tail_chunk);
len -= to_copy;
tail += to_copy;
@@ -1031,7 +1038,8 @@ svm_fifo_enqueue_segments (svm_fifo_t * f, const svm_fifo_seg_t segs[],
{
len += ooo_segment_try_collect (f, len, &tail);
/* Tail chunk might've changed even if nothing was collected */
- f->shr->tail_chunk = f_lookup_clear_enq_chunks (f, old_tail_c, tail);
+ f->shr->tail_chunk =
+ f_csptr (f, f_lookup_clear_enq_chunks (f, old_tail_c, tail));
f->ooo_enq = 0;
}
@@ -1048,12 +1056,11 @@ f_unlink_chunks (svm_fifo_t * f, u32 end_pos, u8 maybe_ooo)
rb_tree_t *rt;
rb_node_t *n;
- ASSERT (!f_chunk_includes_pos (f->shr->start_chunk, end_pos));
-
if (maybe_ooo)
rt = &f->ooo_deq_lookup;
- c = f->shr->start_chunk;
+ c = f_start_cptr (f);
+ ASSERT (!f_chunk_includes_pos (c, end_pos));
do
{
@@ -1067,7 +1074,7 @@ f_unlink_chunks (svm_fifo_t * f, u32 end_pos, u8 maybe_ooo)
if (!c->next)
break;
prev = c;
- c = c->next;
+ c = f_cptr (f, c->next);
}
while (!f_chunk_includes_pos (c, end_pos));
@@ -1087,8 +1094,8 @@ f_unlink_chunks (svm_fifo_t * f, u32 end_pos, u8 maybe_ooo)
return 0;
prev->next = 0;
- start = f->shr->start_chunk;
- f->shr->start_chunk = c;
+ start = f_start_cptr (f);
+ f->shr->start_chunk = f_csptr (f, c);
return start;
}
@@ -1109,9 +1116,9 @@ svm_fifo_dequeue (svm_fifo_t * f, u32 len, u8 * dst)
len = clib_min (cursize, len);
if (!f->shr->head_chunk)
- f->shr->head_chunk = svm_fifo_find_chunk (f, head);
+ f->shr->head_chunk = f_csptr (f, svm_fifo_find_chunk (f, head));
- svm_fifo_copy_from_chunk (f, f->shr->head_chunk, head, dst, len,
+ svm_fifo_copy_from_chunk (f, f_head_cptr (f), head, dst, len,
&f->shr->head_chunk);
head = head + len;
@@ -1119,7 +1126,7 @@ svm_fifo_dequeue (svm_fifo_t * f, u32 len, u8 * dst)
* Use svm_fifo_dequeue_drop instead. */
ASSERT (rb_tree_n_nodes (&f->ooo_deq_lookup) <= 1);
- if (f_pos_geq (head, f_chunk_end (f->shr->start_chunk)))
+ if (f_pos_geq (head, f_chunk_end (f_start_cptr (f))))
fsh_collect_chunks (f->fs_hdr, f->shr->slice_index,
f_unlink_chunks (f, head, 0));
@@ -1133,6 +1140,7 @@ int
svm_fifo_peek (svm_fifo_t * f, u32 offset, u32 len, u8 * dst)
{
u32 tail, head, cursize, head_idx;
+ svm_fifo_chunk_ptr_t last = F_INVALID_CPTR;
f_load_head_tail_cons (f, &head, &tail);
@@ -1149,7 +1157,9 @@ svm_fifo_peek (svm_fifo_t * f, u32 offset, u32 len, u8 * dst)
if (!f->ooo_deq || !f_chunk_includes_pos (f->ooo_deq, head_idx))
f_update_ooo_deq (f, head_idx, head_idx + len);
- svm_fifo_copy_from_chunk (f, f->ooo_deq, head_idx, dst, len, &f->ooo_deq);
+ svm_fifo_copy_from_chunk (f, f->ooo_deq, head_idx, dst, len, &last);
+ if (last != F_INVALID_CPTR)
+ f->ooo_deq = f_cptr (f, last);
return len;
}
@@ -1173,11 +1183,11 @@ svm_fifo_dequeue_drop (svm_fifo_t * f, u32 len)
/* move head */
head = head + total_drop_bytes;
- if (f_pos_geq (head, f_chunk_end (f->shr->start_chunk)))
+ if (f_pos_geq (head, f_chunk_end (f_start_cptr (f))))
{
fsh_collect_chunks (f->fs_hdr, f->shr->slice_index,
f_unlink_chunks (f, head, 1));
- f->shr->head_chunk = f_chunk_includes_pos (f->shr->start_chunk, head) ?
+ f->shr->head_chunk = f_chunk_includes_pos (f_start_cptr (f), head) ?
f->shr->start_chunk :
0;
}
@@ -1199,12 +1209,13 @@ svm_fifo_dequeue_drop_all (svm_fifo_t * f)
f_load_head_tail_all_acq (f, &head, &tail);
- if (!f->shr->head_chunk || !f_chunk_includes_pos (f->shr->head_chunk, head))
- f->shr->head_chunk = svm_fifo_find_chunk (f, head);
+ if (!f->shr->head_chunk || !f_chunk_includes_pos (f_head_cptr (f), head))
+ f->shr->head_chunk = f_csptr (f, svm_fifo_find_chunk (f, head));
- f->shr->head_chunk = f_lookup_clear_deq_chunks (f, f->shr->head_chunk, tail);
+ f->shr->head_chunk =
+ f_csptr (f, f_lookup_clear_deq_chunks (f, f_head_cptr (f), tail));
- if (f_pos_geq (tail, f_chunk_end (f->shr->start_chunk)))
+ if (f_pos_geq (tail, f_chunk_end (f_start_cptr (f))))
fsh_collect_chunks (f->fs_hdr, f->shr->slice_index,
f_unlink_chunks (f, tail, 0));
@@ -1219,7 +1230,7 @@ svm_fifo_fill_chunk_list (svm_fifo_t * f)
f_load_head_tail_prod (f, &head, &tail);
- if (f_chunk_end (f->shr->end_chunk) - head >= f->shr->size)
+ if (f_chunk_end (f_end_cptr (f)) - head >= f->shr->size)
return 0;
if (f_try_chunk_alloc (f, head, tail, f->shr->size - (tail - head)))
@@ -1240,12 +1251,12 @@ svm_fifo_provision_chunks (svm_fifo_t *f, svm_fifo_seg_t *fs, u32 n_segs,
if (f_free_count (f, head, tail) < len)
return SVM_FIFO_EFULL;
- n_avail = f_chunk_end (f->shr->end_chunk) - tail;
+ n_avail = f_chunk_end (f_end_cptr (f)) - tail;
if (n_avail < len && f_try_chunk_alloc (f, head, tail, len))
return SVM_FIFO_EGROW;
- c = f->shr->tail_chunk;
+ c = f_tail_cptr (f);
head_pos = (tail - c->start_byte);
fs[0].data = c->data + head_pos;
fs[0].len = clib_min (c->length - head_pos, len);
@@ -1253,7 +1264,7 @@ svm_fifo_provision_chunks (svm_fifo_t *f, svm_fifo_seg_t *fs, u32 n_segs,
while (n_bytes < len && fs_index < n_segs)
{
- c = c->next;
+ c = f_cptr (f, c->next);
clen = clib_min (c->length, len - n_bytes);
fs[fs_index].data = c->data;
fs[fs_index].len = clen;
@@ -1287,12 +1298,12 @@ svm_fifo_segments (svm_fifo_t * f, u32 offset, svm_fifo_seg_t * fs,
start = head + offset;
if (!f->shr->head_chunk)
- f->shr->head_chunk = svm_fifo_find_chunk (f, head);
+ f->shr->head_chunk = f_csptr (f, svm_fifo_find_chunk (f, head));
- c = f->shr->head_chunk;
+ c = f_head_cptr (f);
while (!f_chunk_includes_pos (c, start))
- c = c->next;
+ c = f_cptr (f, c->next);
head_pos = start - c->start_byte;
fs[0].data = c->data + head_pos;
@@ -1301,7 +1312,7 @@ svm_fifo_segments (svm_fifo_t * f, u32 offset, svm_fifo_seg_t * fs,
while (n_bytes < to_read && fs_index < n_segs)
{
- c = c->next;
+ c = f_cptr (f, c->next);
len = clib_min (c->length, to_read - n_bytes);
fs[fs_index].data = c->data;
fs[fs_index].len = len;
@@ -1327,7 +1338,7 @@ svm_fifo_clone (svm_fifo_t * df, svm_fifo_t * sf)
/* Support only single chunk clones for now */
ASSERT (svm_fifo_n_chunks (sf) == 1);
- clib_memcpy_fast (df->shr->head_chunk->data, sf->shr->head_chunk->data,
+ clib_memcpy_fast (f_head_cptr (df)->data, f_head_cptr (sf)->data,
sf->shr->size);
f_load_head_tail_all_acq (sf, &head, &tail);
@@ -1360,10 +1371,12 @@ svm_fifo_init_pointers (svm_fifo_t * f, u32 head, u32 tail)
c = svm_fifo_find_chunk (f, head);
ASSERT (c != 0);
- f->shr->head_chunk = f->ooo_deq = c;
+ f->ooo_deq = c;
+ f->shr->head_chunk = f_csptr (f, c);
c = svm_fifo_find_chunk (f, tail);
ASSERT (c != 0);
- f->shr->tail_chunk = f->ooo_enq = c;
+ f->ooo_enq = c;
+ f->shr->tail_chunk = f_csptr (f, c);
}
void
@@ -1395,19 +1408,18 @@ svm_fifo_is_sane (svm_fifo_t * f)
svm_fifo_chunk_t *tmp;
if (f->shr->head_chunk &&
- !f_chunk_includes_pos (f->shr->head_chunk, f->shr->head))
+ !f_chunk_includes_pos (f_head_cptr (f), f->shr->head))
return 0;
if (f->shr->tail_chunk &&
- !f_chunk_includes_pos (f->shr->tail_chunk, f->shr->tail))
+ !f_chunk_includes_pos (f_tail_cptr (f), f->shr->tail))
return 0;
if (f->ooo_deq)
{
if (rb_tree_is_init (&f->ooo_deq_lookup))
{
if (f_pos_lt (f->ooo_deq->start_byte,
- f->shr->start_chunk->start_byte) ||
- f_pos_gt (f->ooo_deq->start_byte,
- f_chunk_end (f->shr->end_chunk)))
+ f_start_cptr (f)->start_byte) ||
+ f_pos_gt (f->ooo_deq->start_byte, f_chunk_end (f_end_cptr (f))))
return 0;
tmp = f_find_chunk_rbtree (&f->ooo_deq_lookup,
@@ -1423,9 +1435,8 @@ svm_fifo_is_sane (svm_fifo_t * f)
if (rb_tree_is_init (&f->ooo_enq_lookup))
{
if (f_pos_lt (f->ooo_enq->start_byte,
- f->shr->start_chunk->start_byte) ||
- f_pos_gt (f->ooo_enq->start_byte,
- f_chunk_end (f->shr->end_chunk)))
+ f_start_cptr (f)->start_byte) ||
+ f_pos_gt (f->ooo_enq->start_byte, f_chunk_end (f_end_cptr (f))))
return 0;
tmp = f_find_chunk_rbtree (&f->ooo_enq_lookup,
@@ -1433,19 +1444,19 @@ svm_fifo_is_sane (svm_fifo_t * f)
}
else
{
- tmp = svm_fifo_find_next_chunk (f, f->shr->tail_chunk,
+ tmp = svm_fifo_find_next_chunk (f, f_tail_cptr (f),
f->ooo_enq->start_byte);
}
if (tmp != f->ooo_enq)
return 0;
}
- if (f->shr->start_chunk->next)
+ if (f_start_cptr (f)->next)
{
svm_fifo_chunk_t *c, *prev = 0, *tmp;
u32 chunks_bytes = 0;
- c = f->shr->start_chunk;
+ c = f_start_cptr (f);
do
{
tmp = svm_fifo_find_chunk (f, c->start_byte);
@@ -1475,7 +1486,7 @@ svm_fifo_is_sane (svm_fifo_t * f)
chunks_bytes += c->length;
prev = c;
- c = c->next;
+ c = f_cptr (f, c->next);
}
while (c);
@@ -1492,11 +1503,11 @@ svm_fifo_n_chunks (svm_fifo_t * f)
svm_fifo_chunk_t *c;
int n_chunks = 0;
- c = f->shr->start_chunk;
+ c = f_start_cptr (f);
while (c)
{
n_chunks++;
- c = c->next;
+ c = f_cptr (f, c->next);
}
return n_chunks;
@@ -1558,7 +1569,7 @@ svm_fifo_replay (u8 * s, svm_fifo_t * f, u8 no_read, u8 verbose)
placeholder_fifo = svm_fifo_alloc (f->shr->size);
svm_fifo_init (f, f->shr->size);
- clib_memset (f->shr->head_chunk->data, 0xFF, f->shr->size);
+ clib_memset (f_head_cptr (f)->data, 0xFF, f->shr->size);
vec_validate (data, f->shr->size);
for (i = 0; i < vec_len (data); i++)
data[i] = i;