{
fss = fsh_slice_get (fsh, i);
vec_validate_init_empty (fss->free_chunks, max_chunk_sz, 0);
+ clib_spinlock_init (&fss->chunk_lock);
}
ssvm_pop_heap (oldheap);
static inline u32
fs_freelist_for_size (u32 size)
{
+ if (PREDICT_FALSE (size < FIFO_SEGMENT_MIN_FIFO_SIZE))
+ return 0;
return max_log2 (size) - FIFO_SEGMENT_MIN_LOG2_FIFO_SIZE;
}
fss->free_fifos = f->next;
fss->free_chunks[fl_index] = c->next;
- c->next = c;
+ c->next = 0;
c->start_byte = 0;
- c->length = data_bytes;
memset (f, 0, sizeof (*f));
f->start_chunk = c;
f->end_chunk = c;
c->next = first;
first = c;
n_alloc += fl_size;
- c->length = clib_min (fl_size, data_bytes);
data_bytes -= c->length;
}
else
f->start_chunk = first;
f->end_chunk = last;
- last->next = first;
fss->n_fl_chunk_bytes -= n_alloc;
return f;
}
c = (svm_fifo_chunk_t *) (fmem + sizeof (*f));
c->start_byte = 0;
c->length = rounded_data_size;
- c->rb_index = RBTREE_TNIL_INDEX;
+ c->enq_rb_index = RBTREE_TNIL_INDEX;
+ c->deq_rb_index = RBTREE_TNIL_INDEX;
c->next = fss->free_chunks[fl_index];
fss->free_chunks[fl_index] = c;
fmem += hdrs + rounded_data_size;
if (fifo_sz <= n_free_bytes)
{
void *oldheap = ssvm_push_heap (fsh->ssvm_sh);
- f = svm_fifo_create (data_bytes);
+ f = svm_fifo_alloc (data_bytes);
ssvm_pop_heap (oldheap);
if (f)
{
done:
+ if (f)
+ f->fs_hdr = fsh;
return f;
}
+svm_fifo_chunk_t *
+fsh_alloc_chunk (fifo_segment_header_t * fsh, u32 slice_index, u32 chunk_size)
+{
+ fifo_segment_slice_t *fss;
+ svm_fifo_chunk_t *c;
+ void *oldheap;
+ int fl_index;
+
+ fl_index = fs_freelist_for_size (chunk_size);
+ fss = fsh_slice_get (fsh, slice_index);
+
+ clib_spinlock_lock (&fss->chunk_lock);
+ c = fss->free_chunks[fl_index];
+
+ if (!c)
+ {
+ fsh_check_mem (fsh);
+ chunk_size = fs_freelist_index_to_size (fl_index);
+ if (fsh_n_free_bytes (fsh) < chunk_size)
+ goto done;
+
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
+ c = svm_fifo_chunk_alloc (chunk_size);
+ ssvm_pop_heap (oldheap);
+
+ if (!c)
+ goto done;
+
+ fsh_free_bytes_sub (fsh, chunk_size + sizeof (*c));
+ }
+ else
+ {
+ fss->free_chunks[fl_index] = c->next;
+ c->next = 0;
+ fss->n_fl_chunk_bytes -= fs_freelist_index_to_size (fl_index);
+ }
+
+done:
+
+ clib_spinlock_unlock (&fss->chunk_lock);
+
+ return c;
+}
+
+static void
+fsh_slice_collect_chunks (fifo_segment_slice_t * fss, svm_fifo_chunk_t * cur)
+{
+ svm_fifo_chunk_t *next;
+ int fl_index;
+
+ clib_spinlock_lock (&fss->chunk_lock);
+
+ while (cur)
+ {
+ next = cur->next;
+ fl_index = fs_freelist_for_size (cur->length);
+ cur->next = fss->free_chunks[fl_index];
+ cur->enq_rb_index = RBTREE_TNIL_INDEX;
+ cur->deq_rb_index = RBTREE_TNIL_INDEX;
+ fss->free_chunks[fl_index] = cur;
+ fss->n_fl_chunk_bytes += fs_freelist_index_to_size (fl_index);
+ cur = next;
+ }
+
+ clib_spinlock_unlock (&fss->chunk_lock);
+}
+
+void
+fsh_collect_chunks (fifo_segment_header_t * fsh, u32 slice_index,
+ svm_fifo_chunk_t * cur)
+{
+ fifo_segment_slice_t *fss;
+ fss = fsh_slice_get (fsh, slice_index);
+ fsh_slice_collect_chunks (fss, cur);
+}
+
/**
* Allocate fifo in fifo segment
*/
f->slice_index = slice_index;
- /* (re)initialize the fifo, as in svm_fifo_create */
svm_fifo_init (f, data_bytes);
- /* Initialize chunks and rbtree for multi-chunk fifos */
- if (f->start_chunk->next != f->start_chunk)
- svm_fifo_init_chunks (f);
-
/* If rx fifo type add to active fifos list. When cleaning up segment,
* we need a list of active sessions that should be disconnected. Since
* both rx and tx fifos keep pointers to the session, it's enough to track
}
fss->fifos = f;
f->flags |= SVM_FIFO_F_LL_TRACKED;
+
+ svm_fifo_init_ooo_lookup (f, 0 /* ooo enq */ );
+ }
+ else
+ {
+ svm_fifo_init_ooo_lookup (f, 1 /* ooo deq */ );
}
+
fsh_active_fifos_update (fsh, 1);
done:
fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
{
fifo_segment_header_t *fsh = fs->h;
- svm_fifo_chunk_t *cur, *next;
fifo_segment_slice_t *fss;
- int fl_index;
ASSERT (f->refcnt > 0);
fss->free_fifos = f;
/* Free fifo chunks */
- cur = f->start_chunk;
- do
- {
- next = cur->next;
- fl_index = fs_freelist_for_size (cur->length);
- ASSERT (fl_index < vec_len (fss->free_chunks));
- cur->next = fss->free_chunks[fl_index];
- cur->rb_index = RBTREE_TNIL_INDEX;
- fss->free_chunks[fl_index] = cur;
- fss->n_fl_chunk_bytes += fs_freelist_index_to_size (fl_index);
- cur = next;
- }
- while (cur != f->start_chunk);
+ fsh_slice_collect_chunks (fss, f->start_chunk);
- f->start_chunk = f->end_chunk = f->new_chunks = 0;
+ f->start_chunk = f->end_chunk = 0;
f->head_chunk = f->tail_chunk = f->ooo_enq = f->ooo_deq = 0;
- svm_fifo_free_chunk_lookup (f);
-
/* not allocated on segment heap */
+ svm_fifo_free_chunk_lookup (f);
svm_fifo_free_ooo_data (f);
if (CLIB_DEBUG)
}
}
-int
-fifo_segment_grow_fifo (fifo_segment_t * fs, svm_fifo_t * f, u32 chunk_size)
-{
- fifo_segment_header_t *fsh = fs->h;
- fifo_segment_slice_t *fss;
- svm_fifo_chunk_t *c;
- void *oldheap;
- int fl_index;
-
- fl_index = fs_freelist_for_size (chunk_size);
- fss = fsh_slice_get (fsh, f->slice_index);
-
- c = fss->free_chunks[fl_index];
-
- if (!c)
- {
- fsh_check_mem (fsh);
- if (fsh_n_free_bytes (fsh) < chunk_size)
- return -1;
-
- oldheap = ssvm_push_heap (fsh->ssvm_sh);
- c = svm_fifo_chunk_alloc (chunk_size);
- ssvm_pop_heap (oldheap);
-
- if (!c)
- return -1;
-
- fsh_free_bytes_sub (fsh, chunk_size + sizeof (*c));
- }
- else
- {
- fss->free_chunks[fl_index] = c->next;
- c->next = 0;
- fss->n_fl_chunk_bytes -= fs_freelist_index_to_size (fl_index);
- }
-
- svm_fifo_add_chunk (f, c);
-
- return 0;
-}
-
-int
-fifo_segment_collect_fifo_chunks (fifo_segment_t * fs, svm_fifo_t * f)
-{
- fifo_segment_header_t *fsh = fs->h;
- svm_fifo_chunk_t *cur, *next;
- fifo_segment_slice_t *fss;
- int fl_index;
-
- cur = svm_fifo_collect_chunks (f);
-
- fss = fsh_slice_get (fsh, f->slice_index);
-
- while (cur)
- {
- next = cur->next;
- fl_index = fs_freelist_for_size (cur->length);
- cur->next = fss->free_chunks[fl_index];
- fss->free_chunks[fl_index] = cur;
- cur = next;
- }
-
- return 0;
-}
-
/**
* Get number of active fifos
*/
Code Review / vpp.git / blobdiff