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authorFlorin Coras <fcoras@cisco.com>2020-12-08 17:50:45 -0800
committerFlorin Coras <fcoras@cisco.com>2020-12-24 23:08:43 -0800
commitc547e91df7083007c87615ac1e37b6f223e575e9 (patch)
tree0677e843f5307becf326c14d43d57c0e4b8c3329 /src/svm
parent8219f1f361083cc63022b70d11b08f52833d4789 (diff)
svm: split fifo into private and shared structs
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id8e77e8b2623be719fd43a95e181eaa5b7df2b6e
Diffstat (limited to 'src/svm')
-rw-r--r--src/svm/fifo_segment.c158
-rw-r--r--src/svm/fifo_segment.h4
-rw-r--r--src/svm/fifo_types.h64
-rw-r--r--src/svm/svm_fifo.c241
-rw-r--r--src/svm/svm_fifo.h65
5 files changed, 318 insertions, 214 deletions
diff --git a/src/svm/fifo_segment.c b/src/svm/fifo_segment.c
index b4c3cbe6c6d..19fd0520666 100644
--- a/src/svm/fifo_segment.c
+++ b/src/svm/fifo_segment.c
@@ -14,6 +14,7 @@
*/
#include <svm/fifo_segment.h>
+#include <vppinfra/mem.h>
static inline void *
fsh_alloc_aligned (fifo_segment_header_t *fsh, uword size, uword align)
@@ -239,7 +240,7 @@ fss_fl_chunk_bytes_sub (fifo_segment_slice_t * fss, uword size)
int
fifo_segment_init (fifo_segment_t * fs)
{
- u32 align = 8, offset = 2 * 4096, slices_sz;
+ u32 align = 8, offset = 2 * 4096, slices_sz, i;
uword max_fifo, seg_start, seg_sz;
fifo_segment_header_t *fsh;
ssvm_shared_header_t *sh;
@@ -270,6 +271,11 @@ fifo_segment_init (fifo_segment_t * fs)
fs->max_byte_index = fsh->max_byte_index;
fs->h = sh->opaque[0] = fsh;
+ vec_validate (fs->slices, fs->n_slices - 1);
+ for (i = 0; i < fs->n_slices; i++)
+ fs->slices[i].fifos =
+ clib_mem_bulk_init (sizeof (svm_fifo_t), CLIB_CACHE_LINE_BYTES, 32);
+
sh->ready = 1;
return (0);
}
@@ -343,6 +349,9 @@ fifo_segment_attach (fifo_segment_main_t * sm, fifo_segment_create_args_t * a)
goto done;
fs->max_byte_index = fsh->max_byte_index;
+ vec_validate (fs->slices, 0);
+ fs->slices[0].fifos =
+ clib_mem_bulk_init (sizeof (svm_fifo_t), CLIB_CACHE_LINE_BYTES, 32);
done:
vec_add1 (a->new_segment_indices, fs - sm->segments);
@@ -352,6 +361,7 @@ done:
void
fifo_segment_delete (fifo_segment_main_t * sm, fifo_segment_t * s)
{
+ fifo_segment_cleanup (s);
ssvm_delete (&s->ssvm);
clib_memset (s, 0xfe, sizeof (*s));
pool_put (sm->segments, s);
@@ -478,7 +488,7 @@ static int
fsh_try_alloc_fifo_hdr_batch (fifo_segment_header_t * fsh,
fifo_segment_slice_t * fss, u32 batch_size)
{
- svm_fifo_t *f;
+ svm_fifo_shared_t *f;
uword size;
u8 *fmem;
int i;
@@ -494,7 +504,7 @@ fsh_try_alloc_fifo_hdr_batch (fifo_segment_header_t * fsh,
/* Carve fifo hdr space */
for (i = 0; i < batch_size; i++)
{
- f = (svm_fifo_t *) fmem;
+ f = (svm_fifo_shared_t *) fmem;
memset (f, 0, sizeof (*f));
f->next = fss->free_fifos;
fss->free_fifos = f;
@@ -555,11 +565,10 @@ fs_try_alloc_fifo_batch (fifo_segment_header_t * fsh,
return fsh_try_alloc_chunk_batch (fsh, fss, fl_index, batch_size);
}
-static svm_fifo_t *
-fsh_try_alloc_fifo_hdr (fifo_segment_header_t * fsh,
- fifo_segment_slice_t * fss)
+static svm_fifo_shared_t *
+fsh_try_alloc_fifo_hdr (fifo_segment_header_t *fsh, fifo_segment_slice_t *fss)
{
- svm_fifo_t *f;
+ svm_fifo_shared_t *f;
if (!fss->free_fifos)
{
@@ -642,40 +651,41 @@ done:
* - single fifo allocation
* - grab multiple fifo chunks from freelists
*/
-static svm_fifo_t *
-fs_try_alloc_fifo (fifo_segment_header_t * fsh, fifo_segment_slice_t * fss,
- u32 data_bytes)
+static svm_fifo_shared_t *
+fs_try_alloc_fifo (fifo_segment_header_t *fsh, u32 slice_index, u32 data_bytes)
{
+ fifo_segment_slice_t *fss;
u32 fl_index, min_size;
svm_fifo_chunk_t *c;
- svm_fifo_t *f = 0;
+ svm_fifo_shared_t *sf = 0;
+ fss = fsh_slice_get (fsh, slice_index);
min_size = clib_max ((fsh->pct_first_alloc * data_bytes) / 100, 4096);
fl_index = fs_freelist_for_size (min_size);
if (!fss_chunk_fl_index_is_valid (fss, fl_index))
return 0;
- f = fsh_try_alloc_fifo_hdr (fsh, fss);
- if (!f)
+ sf = fsh_try_alloc_fifo_hdr (fsh, fss);
+ if (!sf)
return 0;
c = fsh_try_alloc_chunk (fsh, fss, min_size);
if (!c)
{
- f->next = fss->free_fifos;
- fss->free_fifos = f;
+ sf->next = fss->free_fifos;
+ fss->free_fifos = sf;
return 0;
}
- f->start_chunk = c;
+ sf->start_chunk = c;
while (c->next)
c = c->next;
- f->end_chunk = c;
- f->size = data_bytes;
- f->fs_hdr = fsh;
+ sf->end_chunk = c;
+ sf->size = data_bytes;
+ sf->slice_index = slice_index;
- return f;
+ return sf;
}
svm_fifo_chunk_t *
@@ -720,6 +730,36 @@ fsh_collect_chunks (fifo_segment_header_t * fsh, u32 slice_index,
fsh_slice_collect_chunks (fsh, fss, c);
}
+svm_fifo_t *
+fs_fifo_alloc (fifo_segment_t *fs, u32 slice_index)
+{
+ fifo_slice_private_t *pfss = &fs->slices[slice_index];
+ svm_fifo_t *f;
+
+ f = clib_mem_bulk_alloc (pfss->fifos);
+ clib_memset (f, 0, sizeof (*f));
+ return f;
+}
+
+void
+fs_fifo_free (fifo_segment_t *fs, svm_fifo_t *f)
+{
+ u32 slice_index = f->shr->slice_index;
+ fifo_slice_private_t *pfss;
+
+ pfss = &fs->slices[slice_index];
+ clib_mem_bulk_free (pfss->fifos, f);
+}
+
+void
+fifo_segment_cleanup (fifo_segment_t *fs)
+{
+ int slice_index;
+
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
+ clib_mem_bulk_destroy (fs->slices[slice_index].fifos);
+}
+
/**
* Allocate fifo in fifo segment
*/
@@ -729,6 +769,7 @@ fifo_segment_alloc_fifo_w_slice (fifo_segment_t * fs, u32 slice_index,
{
fifo_segment_header_t *fsh = fs->h;
fifo_segment_slice_t *fss;
+ svm_fifo_shared_t *sf;
svm_fifo_t *f = 0;
ASSERT (slice_index < fs->n_slices);
@@ -736,15 +777,18 @@ fifo_segment_alloc_fifo_w_slice (fifo_segment_t * fs, u32 slice_index,
if (PREDICT_FALSE (data_bytes > 1 << fsh->max_log2_fifo_size))
return 0;
- fss = fsh_slice_get (fsh, slice_index);
- f = fs_try_alloc_fifo (fsh, fss, data_bytes);
- if (!f)
+ sf = fs_try_alloc_fifo (fsh, slice_index, data_bytes);
+ if (!sf)
goto done;
- f->slice_index = slice_index;
+ f = fs_fifo_alloc (fs, slice_index);
+ f->fs_hdr = fsh;
+ f->shr = sf;
svm_fifo_init (f, data_bytes);
+ fss = fsh_slice_get (fsh, slice_index);
+
/* 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
@@ -762,6 +806,19 @@ done:
return (f);
}
+svm_fifo_t *
+fifo_segment_alloc_fifo_w_shared (fifo_segment_t *fs, svm_fifo_shared_t *sf)
+{
+ svm_fifo_t *f = fs_fifo_alloc (fs, 0);
+ f->fs_hdr = fs->h;
+ f->shr = sf;
+
+ f->ooos_list_head = OOO_SEGMENT_INVALID_INDEX;
+ f->segment_index = SVM_FIFO_INVALID_INDEX;
+ f->refcnt = 1;
+ return f;
+}
+
/**
* Free fifo allocated in fifo segment
*/
@@ -770,13 +827,35 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
{
fifo_segment_header_t *fsh = fs->h;
fifo_segment_slice_t *fss;
+ svm_fifo_shared_t *sf;
ASSERT (f->refcnt > 0);
if (--f->refcnt > 0)
return;
- fss = fsh_slice_get (fsh, f->slice_index);
+ /*
+ * Cleanup shared state
+ */
+
+ sf = f->shr;
+ fss = fsh_slice_get (fsh, sf->slice_index);
+
+ /* Free fifo chunks */
+ fsh_slice_collect_chunks (fsh, fss, sf->start_chunk);
+
+ sf->start_chunk = sf->end_chunk = 0;
+ sf->head_chunk = sf->tail_chunk = 0;
+
+ /* Add to free list */
+ sf->next = fss->free_fifos;
+ fss->free_fifos = sf;
+
+ fss->virtual_mem -= svm_fifo_size (f);
+
+ /*
+ * Cleanup private state
+ */
/* Remove from active list. Only rx fifos are tracked */
if (f->flags & SVM_FIFO_F_LL_TRACKED)
@@ -785,28 +864,19 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
f->flags &= ~SVM_FIFO_F_LL_TRACKED;
}
- /* Free fifo chunks */
- fsh_slice_collect_chunks (fsh, fss, f->start_chunk);
-
- f->start_chunk = f->end_chunk = 0;
- f->head_chunk = f->tail_chunk = f->ooo_enq = f->ooo_deq = 0;
-
- /* not allocated on segment heap */
svm_fifo_free_chunk_lookup (f);
svm_fifo_free_ooo_data (f);
if (CLIB_DEBUG)
{
- f->master_session_index = ~0;
+ sf->master_session_index = ~0;
f->master_thread_index = ~0;
}
- fss->virtual_mem -= svm_fifo_size (f);
-
- /* Add to free list */
- f->next = fss->free_fifos;
+ f->ooo_enq = f->ooo_deq = 0;
f->prev = 0;
- fss->free_fifos = f;
+
+ fs_fifo_free (fs, f);
fsh_active_fifos_update (fsh, -1);
}
@@ -820,12 +890,12 @@ fifo_segment_detach_fifo (fifo_segment_t * fs, svm_fifo_t * f)
ASSERT (f->refcnt == 1);
- fss = fsh_slice_get (fs->h, f->slice_index);
+ fss = fsh_slice_get (fs->h, f->shr->slice_index);
fss->virtual_mem -= svm_fifo_size (f);
if (f->flags & SVM_FIFO_F_LL_TRACKED)
fss_fifo_del_active_list (fss, f);
- c = f->start_chunk;
+ c = f->shr->start_chunk;
while (c)
{
fl_index = fs_freelist_for_size (c->length);
@@ -842,13 +912,13 @@ fifo_segment_attach_fifo (fifo_segment_t * fs, svm_fifo_t * f,
svm_fifo_chunk_t *c;
u32 fl_index;
- f->slice_index = slice_index;
- fss = fsh_slice_get (fs->h, f->slice_index);
+ f->shr->slice_index = slice_index;
+ fss = fsh_slice_get (fs->h, f->shr->slice_index);
fss->virtual_mem += svm_fifo_size (f);
if (f->flags & SVM_FIFO_F_LL_TRACKED)
fss_fifo_add_active_list (fss, f);
- c = f->start_chunk;
+ c = f->shr->start_chunk;
while (c)
{
fl_index = fs_freelist_for_size (c->length);
@@ -966,7 +1036,7 @@ fifo_segment_num_fifos (fifo_segment_t * fs)
static u32
fs_slice_num_free_fifos (fifo_segment_slice_t * fss)
{
- svm_fifo_t *f;
+ svm_fifo_shared_t *f;
u32 count = 0;
f = fss->free_fifos;
diff --git a/src/svm/fifo_segment.h b/src/svm/fifo_segment.h
index 39c94548636..006ffc40f63 100644
--- a/src/svm/fifo_segment.h
+++ b/src/svm/fifo_segment.h
@@ -69,6 +69,7 @@ typedef struct
fifo_segment_header_t *h; /**< fifo segment data */
uword max_byte_index;
u8 n_slices; /**< number of fifo segment slices */
+ fifo_slice_private_t *slices; /**< private slice information */
} fifo_segment_t;
typedef struct
@@ -95,6 +96,7 @@ int fifo_segment_create (fifo_segment_main_t * sm,
int fifo_segment_attach (fifo_segment_main_t * sm,
fifo_segment_create_args_t * a);
void fifo_segment_delete (fifo_segment_main_t * sm, fifo_segment_t * fs);
+void fifo_segment_cleanup (fifo_segment_t *fs);
fifo_segment_t *fifo_segment_get_segment (fifo_segment_main_t * sm,
u32 fs_index);
u32 fifo_segment_index (fifo_segment_main_t * sm, fifo_segment_t * fs);
@@ -112,6 +114,8 @@ svm_fifo_t *fifo_segment_alloc_fifo_w_slice (fifo_segment_t * fs,
u32 slice_index,
u32 data_bytes,
fifo_segment_ftype_t ftype);
+svm_fifo_t *fifo_segment_alloc_fifo_w_shared (fifo_segment_t *fs,
+ svm_fifo_shared_t *sf);
/**
* Free fifo allocated in fifo segment
diff --git a/src/svm/fifo_types.h b/src/svm/fifo_types.h
index e839e7eaab7..434b2c38b4c 100644
--- a/src/svm/fifo_types.h
+++ b/src/svm/fifo_types.h
@@ -59,59 +59,65 @@ typedef struct
u32 action;
} svm_fifo_trace_elem_t;
-typedef struct _svm_fifo
+typedef struct svm_fifo_shr_
{
- CLIB_CACHE_LINE_ALIGN_MARK (shared_first);
- fifo_segment_header_t *fs_hdr;/**< fifo segment header for fifo */
+ CLIB_CACHE_LINE_ALIGN_MARK (shared);
svm_fifo_chunk_t *start_chunk;/**< first chunk in fifo chunk list */
svm_fifo_chunk_t *end_chunk; /**< end chunk in fifo chunk list */
+ volatile u32 has_event; /**< non-zero if deq event exists */
u32 min_alloc; /**< min chunk alloc if space available */
u32 size; /**< size of the fifo in bytes */
- u8 flags; /**< fifo flags */
- u8 slice_index; /**< segment slice for fifo */
-
- CLIB_CACHE_LINE_ALIGN_MARK (shared_second);
- volatile u32 has_event; /**< non-zero if deq event exists */
u32 master_session_index; /**< session layer session index */
u32 client_session_index; /**< app session index */
- u8 master_thread_index; /**< session layer thread index */
- u8 client_thread_index; /**< app worker index */
- i8 refcnt; /**< reference count */
- u32 segment_manager; /**< session layer segment manager index */
- u32 segment_index; /**< segment index in segment manager */
- struct _svm_fifo *next; /**< next in freelist/active chain */
- struct _svm_fifo *prev; /**< prev in active chain */
-
- CLIB_CACHE_LINE_ALIGN_MARK (consumer);
- rb_tree_t ooo_deq_lookup; /**< rbtree for ooo deq chunk lookup */
+ u8 slice_index; /**< segment slice for fifo */
+ struct svm_fifo_shr_ *next; /**< next in freelist/active chain */
+
+ CLIB_CACHE_LINE_ALIGN_MARK (consumer);
svm_fifo_chunk_t *head_chunk; /**< tracks chunk where head lands */
- svm_fifo_chunk_t *ooo_deq; /**< last chunk used for ooo dequeue */
u32 head; /**< fifo head position/byte */
volatile u32 want_deq_ntf; /**< producer wants nudge */
volatile u32 has_deq_ntf;
- CLIB_CACHE_LINE_ALIGN_MARK (producer);
- rb_tree_t ooo_enq_lookup; /**< rbtree for ooo enq chunk lookup */
+ CLIB_CACHE_LINE_ALIGN_MARK (producer);
u32 tail; /**< fifo tail position/byte */
- u32 ooos_list_head; /**< Head of out-of-order linked-list */
svm_fifo_chunk_t *tail_chunk; /**< tracks chunk where tail lands */
+ volatile u8 n_subscribers; /**< Number of subscribers for io events */
+ u8 subscribers[SVM_FIFO_MAX_EVT_SUBSCRIBERS];
+} svm_fifo_shared_t;
+
+typedef struct _svm_fifo
+{
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline);
+ svm_fifo_shared_t *shr; /**< shared fifo in fifo segment memory */
+ fifo_segment_header_t *fs_hdr; /**< fifo segment header for fifo */
+ rb_tree_t ooo_enq_lookup; /**< rbtree for ooo enq chunk lookup */
+ rb_tree_t ooo_deq_lookup; /**< rbtree for ooo deq chunk lookup */
+ svm_fifo_chunk_t *ooo_deq; /**< last chunk used for ooo dequeue */
svm_fifo_chunk_t *ooo_enq; /**< last chunk used for ooo enqueue */
ooo_segment_t *ooo_segments; /**< Pool of ooo segments */
+ u32 ooos_list_head; /**< Head of out-of-order linked-list */
u32 ooos_newest; /**< Last segment to have been updated */
- volatile u8 n_subscribers; /**< Number of subscribers for io events */
- u8 subscribers[SVM_FIFO_MAX_EVT_SUBSCRIBERS];
+
+ u8 flags; /**< fifo flags */
+ u8 master_thread_index; /**< session layer thread index */
+ u8 client_thread_index; /**< app worker index */
+ i8 refcnt; /**< reference count */
+ u32 segment_manager; /**< session layer segment manager index */
+ u32 segment_index; /**< segment index in segment manager */
+
+ struct _svm_fifo *next; /**< prev in active chain */
+ struct _svm_fifo *prev; /**< prev in active chain */
#if SVM_FIFO_TRACE
svm_fifo_trace_elem_t *trace;
#endif
-
} svm_fifo_t;
typedef struct fifo_segment_slice_
{
svm_fifo_chunk_t *free_chunks[FS_CHUNK_VEC_LEN]; /**< Free chunks by size */
svm_fifo_t *fifos; /**< Linked list of active RX fifos */
- svm_fifo_t *free_fifos; /**< Freelists by fifo size */
+ svm_fifo_shared_t *free_fifos; /**< Freelists of fifo shared hdrs */
uword n_fl_chunk_bytes; /**< Chunk bytes on freelist */
uword virtual_mem; /**< Slice sum of all fifo sizes */
u32 num_chunks[FS_CHUNK_VEC_LEN]; /**< Allocated chunks by chunk size */
@@ -120,6 +126,12 @@ typedef struct fifo_segment_slice_
u32 chunk_lock;
} fifo_segment_slice_t;
+typedef struct fifo_slice_private_
+{
+ clib_mem_bulk_handle_t fifos; /**< Bulk fifo allocator */
+ uword virtual_mem; /**< Slice sum of all fifo sizes */
+} fifo_slice_private_t;
+
struct fifo_segment_header_
{
uword n_cached_bytes; /**< Cached bytes */
diff --git a/src/svm/svm_fifo.c b/src/svm/svm_fifo.c
index 0c08dba7aa2..2f910e0b95f 100644
--- a/src/svm/svm_fifo.c
+++ b/src/svm/svm_fifo.c
@@ -348,7 +348,7 @@ ooo_segment_try_collect (svm_fifo_t * f, u32 n_bytes_enqueued, u32 * tail)
}
}
- ASSERT (bytes <= f->size);
+ ASSERT (bytes <= f->shr->size);
return bytes;
}
@@ -372,23 +372,23 @@ svm_fifo_init (svm_fifo_t * f, u32 size)
svm_fifo_chunk_t *c, *prev;
u32 min_alloc;
- f->size = size;
+ f->shr->size = size;
f->ooos_list_head = OOO_SEGMENT_INVALID_INDEX;
f->segment_index = SVM_FIFO_INVALID_INDEX;
f->refcnt = 1;
- f->head = f->tail = f->flags = 0;
- f->head_chunk = f->tail_chunk = f->start_chunk;
+ f->shr->head = f->shr->tail = f->flags = 0;
+ f->shr->head_chunk = f->shr->tail_chunk = f->shr->start_chunk;
f->ooo_deq = f->ooo_enq = 0;
min_alloc = size > 32 << 10 ? size >> 3 : 4096;
min_alloc = clib_min (min_alloc, 64 << 10);
- f->min_alloc = min_alloc;
+ f->shr->min_alloc = min_alloc;
/*
* Initialize chunks
*/
- f->start_chunk->start_byte = 0;
- prev = f->start_chunk;
+ f->shr->start_chunk->start_byte = 0;
+ prev = f->shr->start_chunk;
prev->enq_rb_index = prev->deq_rb_index = RBTREE_TNIL_INDEX;
c = prev->next;
@@ -447,7 +447,7 @@ 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->start_chunk = f->end_chunk = c;
+ f->shr->start_chunk = f->shr->end_chunk = c;
return f;
}
@@ -486,7 +486,7 @@ svm_fifo_find_chunk (svm_fifo_t * f, u32 pos)
{
svm_fifo_chunk_t *c;
- c = f->start_chunk;
+ c = f->shr->start_chunk;
while (c && !f_chunk_includes_pos (c, pos))
c = c->next;
@@ -513,16 +513,17 @@ svm_fifo_max_read_chunk (svm_fifo_t * f)
u32 head, tail, end_chunk;
f_load_head_tail_cons (f, &head, &tail);
- ASSERT (!f->head_chunk || f_chunk_includes_pos (f->head_chunk, head));
+ ASSERT (!f->shr->head_chunk ||
+ f_chunk_includes_pos (f->shr->head_chunk, head));
- if (!f->head_chunk)
+ if (!f->shr->head_chunk)
{
- f->head_chunk = svm_fifo_find_chunk (f, head);
- if (PREDICT_FALSE (!f->head_chunk))
+ f->shr->head_chunk = svm_fifo_find_chunk (f, head);
+ if (PREDICT_FALSE (!f->shr->head_chunk))
return 0;
}
- end_chunk = f_chunk_end (f->head_chunk);
+ end_chunk = f_chunk_end (f->shr->head_chunk);
return f_pos_lt (end_chunk, tail) ? end_chunk - head : tail - head;
}
@@ -533,9 +534,10 @@ svm_fifo_max_write_chunk (svm_fifo_t * f)
u32 head, tail;
f_load_head_tail_prod (f, &head, &tail);
- ASSERT (!f->tail_chunk || f_chunk_includes_pos (f->tail_chunk, tail));
+ ASSERT (!f->shr->tail_chunk ||
+ f_chunk_includes_pos (f->shr->tail_chunk, tail));
- return f->tail_chunk ? f_chunk_end (f->tail_chunk) - tail : 0;
+ return f->shr->tail_chunk ? f_chunk_end (f->shr->tail_chunk) - tail : 0;
}
static rb_node_t *
@@ -605,13 +607,13 @@ 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->tail_chunk, start_pos);
+ f->ooo_enq = svm_fifo_find_next_chunk (f, f->shr->tail_chunk, start_pos);
return;
}
if (rt->root == RBTREE_TNIL_INDEX)
{
- c = f->tail_chunk;
+ c = f->shr->tail_chunk;
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);
@@ -660,7 +662,7 @@ f_update_ooo_deq (svm_fifo_t * f, u32 start_pos, u32 end_pos)
if (rt->root == RBTREE_TNIL_INDEX)
{
- c = f->start_chunk;
+ c = f->shr->start_chunk;
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);
@@ -778,14 +780,14 @@ svm_fifo_overwrite_head (svm_fifo_t * f, u8 * src, u32 len)
u32 head, tail, head_idx;
svm_fifo_chunk_t *c;
- ASSERT (len <= f->size);
+ ASSERT (len <= f->shr->size);
f_load_head_tail_cons (f, &head, &tail);
- if (!f->head_chunk)
- f->head_chunk = svm_fifo_find_chunk (f, head);
+ if (!f->shr->head_chunk)
+ f->shr->head_chunk = svm_fifo_find_chunk (f, head);
- c = f->head_chunk;
+ c = f->shr->head_chunk;
head_idx = head - c->start_byte;
n_chunk = c->length - head_idx;
if (len <= n_chunk)
@@ -804,17 +806,17 @@ 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->end_chunk) - tail;
+ free_alloced = f_chunk_end (f->shr->end_chunk) - tail;
- alloc_size = clib_min (f->min_alloc, f->size - (tail - head));
+ alloc_size = clib_min (f->shr->min_alloc, f->shr->size - (tail - head));
alloc_size = clib_max (alloc_size, len - free_alloced);
- c = fsh_alloc_chunk (f->fs_hdr, f->slice_index, alloc_size);
+ c = fsh_alloc_chunk (f->fs_hdr, f->shr->slice_index, alloc_size);
if (PREDICT_FALSE (!c))
return -1;
cur = c;
- prev = f->end_chunk;
+ prev = f->shr->end_chunk;
while (cur)
{
@@ -827,11 +829,11 @@ f_try_chunk_alloc (svm_fifo_t * f, u32 head, u32 tail, u32 len)
}
prev->next = 0;
- f->end_chunk->next = c;
- f->end_chunk = prev;
+ f->shr->end_chunk->next = c;
+ f->shr->end_chunk = prev;
- if (!f->tail_chunk)
- f->tail_chunk = c;
+ if (!f->shr->tail_chunk)
+ f->shr->tail_chunk = c;
return 0;
}
@@ -855,19 +857,20 @@ 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->end_chunk)))
+ if (f_pos_gt (tail + len, f_chunk_end (f->shr->end_chunk)))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, len)))
{
- len = f_chunk_end (f->end_chunk) - tail;
+ len = f_chunk_end (f->shr->end_chunk) - tail;
if (!len)
return SVM_FIFO_EGROW;
}
}
- old_tail_c = f->tail_chunk;
+ old_tail_c = f->shr->tail_chunk;
- svm_fifo_copy_to_chunk (f, f->tail_chunk, tail, src, len, &f->tail_chunk);
+ svm_fifo_copy_to_chunk (f, f->shr->tail_chunk, tail, src, len,
+ &f->shr->tail_chunk);
tail = tail + len;
svm_fifo_trace_add (f, head, len, 2);
@@ -877,12 +880,12 @@ 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->tail_chunk = f_lookup_clear_enq_chunks (f, old_tail_c, tail);
+ f->shr->tail_chunk = f_lookup_clear_enq_chunks (f, old_tail_c, tail);
f->ooo_enq = 0;
}
/* store-rel: producer owned index (paired with load-acq in consumer) */
- clib_atomic_store_rel_n (&f->tail, tail);
+ clib_atomic_store_rel_n (&f->shr->tail, tail);
return len;
}
@@ -911,7 +914,7 @@ 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->end_chunk)))
+ if (f_pos_gt (enq_pos + len, f_chunk_end (f->shr->end_chunk)))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, offset + len)))
return SVM_FIFO_EGROW;
@@ -938,21 +941,23 @@ svm_fifo_enqueue_nocopy (svm_fifo_t * f, u32 len)
ASSERT (len <= svm_fifo_max_enqueue_prod (f));
/* load-relaxed: producer owned index */
- tail = f->tail;
+ tail = f->shr->tail;
tail = tail + len;
if (rb_tree_is_init (&f->ooo_enq_lookup))
{
- f->tail_chunk = f_lookup_clear_enq_chunks (f, f->tail_chunk, tail);
+ f->shr->tail_chunk =
+ f_lookup_clear_enq_chunks (f, f->shr->tail_chunk, tail);
f->ooo_enq = 0;
}
else
{
- f->tail_chunk = svm_fifo_find_next_chunk (f, f->tail_chunk, tail);
+ f->shr->tail_chunk =
+ svm_fifo_find_next_chunk (f, f->shr->tail_chunk, tail);
}
/* store-rel: producer owned index (paired with load-acq in consumer) */
- clib_atomic_store_rel_n (&f->tail, tail);
+ clib_atomic_store_rel_n (&f->shr->tail, tail);
}
int
@@ -975,14 +980,14 @@ 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->tail_chunk;
+ old_tail_c = f->shr->tail_chunk;
if (!allow_partial)
{
if (PREDICT_FALSE (free_count < len))
return SVM_FIFO_EFULL;
- if (f_pos_gt (tail + len, f_chunk_end (f->end_chunk)))
+ if (f_pos_gt (tail + len, f_chunk_end (f->shr->end_chunk)))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, len)))
return SVM_FIFO_EGROW;
@@ -990,8 +995,8 @@ 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->tail_chunk, tail, segs[i].data,
- segs[i].len, &f->tail_chunk);
+ svm_fifo_copy_to_chunk (f, f->shr->tail_chunk, tail, segs[i].data,
+ segs[i].len, &f->shr->tail_chunk);
tail += segs[i].len;
}
}
@@ -999,11 +1004,11 @@ 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->end_chunk)))
+ if (f_pos_gt (tail + len, f_chunk_end (f->shr->end_chunk)))
{
if (PREDICT_FALSE (f_try_chunk_alloc (f, head, tail, len)))
{
- len = f_chunk_end (f->end_chunk) - tail;
+ len = f_chunk_end (f->shr->end_chunk) - tail;
if (!len)
return SVM_FIFO_EGROW;
}
@@ -1013,8 +1018,8 @@ 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->tail_chunk, tail, segs[i].data,
- to_copy, &f->tail_chunk);
+ svm_fifo_copy_to_chunk (f, f->shr->tail_chunk, tail, segs[i].data,
+ to_copy, &f->shr->tail_chunk);
len -= to_copy;
tail += to_copy;
i++;
@@ -1026,12 +1031,12 @@ 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->tail_chunk = f_lookup_clear_enq_chunks (f, old_tail_c, tail);
+ f->shr->tail_chunk = f_lookup_clear_enq_chunks (f, old_tail_c, tail);
f->ooo_enq = 0;
}
/* store-rel: producer owned index (paired with load-acq in consumer) */
- clib_atomic_store_rel_n (&f->tail, tail);
+ clib_atomic_store_rel_n (&f->shr->tail, tail);
return len;
}
@@ -1043,12 +1048,12 @@ 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->start_chunk, end_pos));
+ ASSERT (!f_chunk_includes_pos (f->shr->start_chunk, end_pos));
if (maybe_ooo)
rt = &f->ooo_deq_lookup;
- c = f->start_chunk;
+ c = f->shr->start_chunk;
do
{
@@ -1082,8 +1087,8 @@ f_unlink_chunks (svm_fifo_t * f, u32 end_pos, u8 maybe_ooo)
return 0;
prev->next = 0;
- start = f->start_chunk;
- f->start_chunk = c;
+ start = f->shr->start_chunk;
+ f->shr->start_chunk = c;
return start;
}
@@ -1103,22 +1108,23 @@ svm_fifo_dequeue (svm_fifo_t * f, u32 len, u8 * dst)
len = clib_min (cursize, len);
- if (!f->head_chunk)
- f->head_chunk = svm_fifo_find_chunk (f, head);
+ if (!f->shr->head_chunk)
+ f->shr->head_chunk = svm_fifo_find_chunk (f, head);
- svm_fifo_copy_from_chunk (f, f->head_chunk, head, dst, len, &f->head_chunk);
+ svm_fifo_copy_from_chunk (f, f->shr->head_chunk, head, dst, len,
+ &f->shr->head_chunk);
head = head + len;
/* In order dequeues are not supported in combination with ooo peeking.
* 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->start_chunk)))
- fsh_collect_chunks (f->fs_hdr, f->slice_index,
+ if (f_pos_geq (head, f_chunk_end (f->shr->start_chunk)))
+ fsh_collect_chunks (f->fs_hdr, f->shr->slice_index,
f_unlink_chunks (f, head, 0));
/* store-rel: consumer owned index (paired with load-acq in producer) */
- clib_atomic_store_rel_n (&f->head, head);
+ clib_atomic_store_rel_n (&f->shr->head, head);
return len;
}
@@ -1167,16 +1173,17 @@ 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->start_chunk)))
+ if (f_pos_geq (head, f_chunk_end (f->shr->start_chunk)))
{
- fsh_collect_chunks (f->fs_hdr, f->slice_index,
+ fsh_collect_chunks (f->fs_hdr, f->shr->slice_index,
f_unlink_chunks (f, head, 1));
- f->head_chunk =
- f_chunk_includes_pos (f->start_chunk, head) ? f->start_chunk : 0;
+ f->shr->head_chunk = f_chunk_includes_pos (f->shr->start_chunk, head) ?
+ f->shr->start_chunk :
+ 0;
}
/* store-rel: consumer owned index (paired with load-acq in producer) */
- clib_atomic_store_rel_n (&f->head, head);
+ clib_atomic_store_rel_n (&f->shr->head, head);
return total_drop_bytes;
}
@@ -1192,17 +1199,17 @@ svm_fifo_dequeue_drop_all (svm_fifo_t * f)
f_load_head_tail_all_acq (f, &head, &tail);
- if (!f->head_chunk || !f_chunk_includes_pos (f->head_chunk, head))
- f->head_chunk = svm_fifo_find_chunk (f, head);
+ if (!f->shr->head_chunk || !f_chunk_includes_pos (f->shr->head_chunk, head))
+ f->shr->head_chunk = svm_fifo_find_chunk (f, head);
- f->head_chunk = f_lookup_clear_deq_chunks (f, f->head_chunk, tail);
+ f->shr->head_chunk = f_lookup_clear_deq_chunks (f, f->shr->head_chunk, tail);
- if (f_pos_geq (tail, f_chunk_end (f->start_chunk)))
- fsh_collect_chunks (f->fs_hdr, f->slice_index,
+ if (f_pos_geq (tail, f_chunk_end (f->shr->start_chunk)))
+ fsh_collect_chunks (f->fs_hdr, f->shr->slice_index,
f_unlink_chunks (f, tail, 0));
/* store-rel: consumer owned index (paired with load-acq in producer) */
- clib_atomic_store_rel_n (&f->head, tail);
+ clib_atomic_store_rel_n (&f->shr->head, tail);
}
int
@@ -1212,10 +1219,10 @@ svm_fifo_fill_chunk_list (svm_fifo_t * f)
f_load_head_tail_prod (f, &head, &tail);
- if (f_chunk_end (f->end_chunk) - head >= f->size)
+ if (f_chunk_end (f->shr->end_chunk) - head >= f->shr->size)
return 0;
- if (f_try_chunk_alloc (f, head, tail, f->size - (tail - head)))
+ if (f_try_chunk_alloc (f, head, tail, f->shr->size - (tail - head)))
return SVM_FIFO_EGROW;
return 0;
@@ -1233,12 +1240,12 @@ 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->end_chunk) - tail;
+ n_avail = f_chunk_end (f->shr->end_chunk) - tail;
if (n_avail < len && f_try_chunk_alloc (f, head, tail, len))
return SVM_FIFO_EGROW;
- c = f->tail_chunk;
+ c = f->shr->tail_chunk;
head_pos = (tail - c->start_byte);
fs[0].data = c->data + head_pos;
fs[0].len = clib_min (c->length - head_pos, len);
@@ -1279,10 +1286,10 @@ svm_fifo_segments (svm_fifo_t * f, u32 offset, svm_fifo_seg_t * fs,
to_read = clib_min (cursize - offset, max_bytes);
start = head + offset;
- if (!f->head_chunk)
- f->head_chunk = svm_fifo_find_chunk (f, head);
+ if (!f->shr->head_chunk)
+ f->shr->head_chunk = svm_fifo_find_chunk (f, head);
- c = f->head_chunk;
+ c = f->shr->head_chunk;
while (!f_chunk_includes_pos (c, start))
c = c->next;
@@ -1320,11 +1327,12 @@ 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->head_chunk->data, sf->head_chunk->data, sf->size);
+ clib_memcpy_fast (df->shr->head_chunk->data, sf->shr->head_chunk->data,
+ sf->shr->size);
f_load_head_tail_all_acq (sf, &head, &tail);
- clib_atomic_store_rel_n (&df->head, head);
- clib_atomic_store_rel_n (&df->tail, tail);
+ clib_atomic_store_rel_n (&df->shr->head, head);
+ clib_atomic_store_rel_n (&df->shr->tail, tail);
}
u32
@@ -1347,23 +1355,23 @@ svm_fifo_init_pointers (svm_fifo_t * f, u32 head, u32 tail)
{
svm_fifo_chunk_t *c;
- clib_atomic_store_rel_n (&f->head, head);
- clib_atomic_store_rel_n (&f->tail, tail);
+ clib_atomic_store_rel_n (&f->shr->head, head);
+ clib_atomic_store_rel_n (&f->shr->tail, tail);
c = svm_fifo_find_chunk (f, head);
ASSERT (c != 0);
- f->head_chunk = f->ooo_deq = c;
+ f->shr->head_chunk = f->ooo_deq = c;
c = svm_fifo_find_chunk (f, tail);
ASSERT (c != 0);
- f->tail_chunk = f->ooo_enq = c;
+ f->shr->tail_chunk = f->ooo_enq = c;
}
void
svm_fifo_add_subscriber (svm_fifo_t * f, u8 subscriber)
{
- if (f->n_subscribers >= SVM_FIFO_MAX_EVT_SUBSCRIBERS)
+ if (f->shr->n_subscribers >= SVM_FIFO_MAX_EVT_SUBSCRIBERS)
return;
- f->subscribers[f->n_subscribers++] = subscriber;
+ f->shr->subscribers[f->shr->n_subscribers++] = subscriber;
}
void
@@ -1371,12 +1379,12 @@ svm_fifo_del_subscriber (svm_fifo_t * f, u8 subscriber)
{
int i;
- for (i = 0; i < f->n_subscribers; i++)
+ for (i = 0; i < f->shr->n_subscribers; i++)
{
- if (f->subscribers[i] != subscriber)
+ if (f->shr->subscribers[i] != subscriber)
continue;
- f->subscribers[i] = f->subscribers[f->n_subscribers - 1];
- f->n_subscribers--;
+ f->shr->subscribers[i] = f->shr->subscribers[f->shr->n_subscribers - 1];
+ f->shr->n_subscribers--;
break;
}
}
@@ -1386,17 +1394,20 @@ svm_fifo_is_sane (svm_fifo_t * f)
{
svm_fifo_chunk_t *tmp;
- if (f->head_chunk && !f_chunk_includes_pos (f->head_chunk, f->head))
+ if (f->shr->head_chunk &&
+ !f_chunk_includes_pos (f->shr->head_chunk, f->shr->head))
return 0;
- if (f->tail_chunk && !f_chunk_includes_pos (f->tail_chunk, f->tail))
+ if (f->shr->tail_chunk &&
+ !f_chunk_includes_pos (f->shr->tail_chunk, 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->start_chunk->start_byte)
- || f_pos_gt (f->ooo_deq->start_byte,
- f_chunk_end (f->end_chunk)))
+ 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)))
return 0;
tmp = f_find_chunk_rbtree (&f->ooo_deq_lookup,
@@ -1411,9 +1422,10 @@ 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->start_chunk->start_byte)
- || f_pos_gt (f->ooo_enq->start_byte,
- f_chunk_end (f->end_chunk)))
+ 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)))
return 0;
tmp = f_find_chunk_rbtree (&f->ooo_enq_lookup,
@@ -1421,19 +1433,19 @@ svm_fifo_is_sane (svm_fifo_t * f)
}
else
{
- tmp = svm_fifo_find_next_chunk (f, f->tail_chunk,
+ tmp = svm_fifo_find_next_chunk (f, f->shr->tail_chunk,
f->ooo_enq->start_byte);
}
if (tmp != f->ooo_enq)
return 0;
}
- if (f->start_chunk->next)
+ if (f->shr->start_chunk->next)
{
svm_fifo_chunk_t *c, *prev = 0, *tmp;
u32 chunks_bytes = 0;
- c = f->start_chunk;
+ c = f->shr->start_chunk;
do
{
tmp = svm_fifo_find_chunk (f, c->start_byte);
@@ -1467,7 +1479,7 @@ svm_fifo_is_sane (svm_fifo_t * f)
}
while (c);
- if (chunks_bytes < f->tail - f->head)
+ if (chunks_bytes < f->shr->tail - f->shr->head)
return 0;
}
@@ -1480,7 +1492,7 @@ svm_fifo_n_chunks (svm_fifo_t * f)
svm_fifo_chunk_t *c;
int n_chunks = 0;
- c = f->start_chunk;
+ c = f->shr->start_chunk;
while (c)
{
n_chunks++;
@@ -1544,10 +1556,10 @@ svm_fifo_replay (u8 * s, svm_fifo_t * f, u8 no_read, u8 verbose)
trace_len = 0;
#endif
- placeholder_fifo = svm_fifo_alloc (f->size);
- svm_fifo_init (f, f->size);
- clib_memset (f->head_chunk->data, 0xFF, f->size);
- vec_validate (data, f->size);
+ 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);
+ vec_validate (data, f->shr->size);
for (i = 0; i < vec_len (data); i++)
data[i] = i;
@@ -1614,14 +1626,15 @@ format_svm_fifo (u8 * s, va_list * args)
indent = format_get_indent (s);
s = format (s, "cursize %u nitems %u has_event %d min_alloc %u\n",
- svm_fifo_max_dequeue (f), f->size, f->has_event, f->min_alloc);
+ svm_fifo_max_dequeue (f), f->shr->size, f->shr->has_event,
+ f->shr->min_alloc);
s = format (s, "%Uhead %u tail %u segment manager %u\n", format_white_space,
- indent, f->head, f->tail, f->segment_manager);
+ indent, f->shr->head, f->shr->tail, f->segment_manager);
if (verbose > 1)
s = format (s, "%Uvpp session %d thread %d app session %d thread %d\n",
- format_white_space, indent, f->master_session_index,
- f->master_thread_index, f->client_session_index,
+ format_white_space, indent, f->shr->master_session_index,
+ f->master_thread_index, f->shr->client_session_index,
f->client_thread_index);
if (verbose)
diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index 5656e63d998..5845d7042af 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -80,9 +80,9 @@ static inline void
f_load_head_tail_cons (svm_fifo_t * f, u32 * head, u32 * tail)
{
/* load-relaxed: consumer owned index */
- *head = f->head;
+ *head = f->shr->head;
/* load-acq: consumer foreign index (paired with store-rel in producer) */
- *tail = clib_atomic_load_acq_n (&f->tail);
+ *tail = clib_atomic_load_acq_n (&f->shr->tail);
}
/** Load head and tail optimized for producer
@@ -93,9 +93,9 @@ static inline void
f_load_head_tail_prod (svm_fifo_t * f, u32 * head, u32 * tail)
{
/* load relaxed: producer owned index */
- *tail = f->tail;
+ *tail = f->shr->tail;
/* load-acq: producer foreign index (paired with store-rel in consumer) */
- *head = clib_atomic_load_acq_n (&f->head);
+ *head = clib_atomic_load_acq_n (&f->shr->head);
}
/**
@@ -107,9 +107,9 @@ static inline void
f_load_head_tail_all_acq (svm_fifo_t * f, u32 * head, u32 * tail)
{
/* load-acq : consumer foreign index (paired with store-rel) */
- *tail = clib_atomic_load_acq_n (&f->tail);
+ *tail = clib_atomic_load_acq_n (&f->shr->tail);
/* load-acq : producer foriegn index (paired with store-rel) */
- *head = clib_atomic_load_acq_n (&f->head);
+ *head = clib_atomic_load_acq_n (&f->shr->head);
}
/**
@@ -131,7 +131,7 @@ f_cursize (svm_fifo_t * f, u32 head, u32 tail)
static inline u32
f_free_count (svm_fifo_t * f, u32 head, u32 tail)
{
- return (f->size - f_cursize (f, head, tail));
+ return (f->shr->size - f_cursize (f, head, tail));
}
always_inline u32
@@ -487,7 +487,7 @@ svm_fifo_max_dequeue (svm_fifo_t * f)
static inline int
svm_fifo_is_full_prod (svm_fifo_t * f)
{
- return (svm_fifo_max_dequeue_prod (f) == f->size);
+ return (svm_fifo_max_dequeue_prod (f) == f->shr->size);
}
/* Check if fifo is full.
@@ -499,7 +499,7 @@ svm_fifo_is_full_prod (svm_fifo_t * f)
static inline int
svm_fifo_is_full (svm_fifo_t * f)
{
- return (svm_fifo_max_dequeue (f) == f->size);
+ return (svm_fifo_max_dequeue (f) == f->shr->size);
}
/**
@@ -606,7 +606,7 @@ u32 svm_fifo_max_write_chunk (svm_fifo_t * f);
static inline svm_fifo_chunk_t *
svm_fifo_head_chunk (svm_fifo_t * f)
{
- return f->head_chunk;
+ return f->shr->head_chunk;
}
/**
@@ -618,10 +618,11 @@ svm_fifo_head_chunk (svm_fifo_t * f)
static inline u8 *
svm_fifo_head (svm_fifo_t * f)
{
- if (!f->head_chunk)
+ if (!f->shr->head_chunk)
return 0;
/* load-relaxed: consumer owned index */
- return (f->head_chunk->data + (f->head - f->head_chunk->start_byte));
+ return (f->shr->head_chunk->data +
+ (f->shr->head - f->shr->head_chunk->start_byte));
}
/**
@@ -633,7 +634,7 @@ svm_fifo_head (svm_fifo_t * f)
static inline svm_fifo_chunk_t *
svm_fifo_tail_chunk (svm_fifo_t * f)
{
- return f->tail_chunk;
+ return f->shr->tail_chunk;
}
/**
@@ -646,7 +647,8 @@ static inline u8 *
svm_fifo_tail (svm_fifo_t * f)
{
/* load-relaxed: producer owned index */
- return (f->tail_chunk->data + (f->tail - f->tail_chunk->start_byte));
+ return (f->shr->tail_chunk->data +
+ (f->shr->tail - f->shr->tail_chunk->start_byte));
}
/**
@@ -658,7 +660,7 @@ svm_fifo_tail (svm_fifo_t * f)
static inline u8
svm_fifo_n_subscribers (svm_fifo_t * f)
{
- return f->n_subscribers;
+ return f->shr->n_subscribers;
}
/**
@@ -692,7 +694,7 @@ ooo_segment_offset_prod (svm_fifo_t * f, ooo_segment_t * s)
{
u32 tail;
/* load-relaxed: producer owned index */
- tail = f->tail;
+ tail = f->shr->tail;
return (s->start - tail);
}
@@ -706,7 +708,7 @@ ooo_segment_length (svm_fifo_t * f, ooo_segment_t * s)
static inline u32
svm_fifo_size (svm_fifo_t * f)
{
- return f->size;
+ return f->shr->size;
}
static inline void
@@ -714,8 +716,9 @@ svm_fifo_set_size (svm_fifo_t * f, u32 size)
{
if (size > (1 << f->fs_hdr->max_log2_fifo_size))
return;
- fsh_virtual_mem_update (f->fs_hdr, f->slice_index, (int) f->size - size);
- f->size = size;
+ fsh_virtual_mem_update (f->fs_hdr, f->shr->slice_index,
+ (int) f->shr->size - size);
+ f->shr->size = size;
}
/**
@@ -727,7 +730,7 @@ svm_fifo_set_size (svm_fifo_t * f, u32 size)
static inline int
svm_fifo_has_event (svm_fifo_t * f)
{
- return f->has_event;
+ return f->shr->has_event;
}
/**
@@ -741,7 +744,7 @@ svm_fifo_has_event (svm_fifo_t * f)
always_inline u8
svm_fifo_set_event (svm_fifo_t * f)
{
- return !clib_atomic_swap_rel_n (&f->has_event, 1);
+ return !clib_atomic_swap_rel_n (&f->shr->has_event, 1);
}
/**
@@ -754,7 +757,7 @@ svm_fifo_set_event (svm_fifo_t * f)
always_inline void
svm_fifo_unset_event (svm_fifo_t * f)
{
- clib_atomic_swap_acq_n (&f->has_event, 0);
+ clib_atomic_swap_acq_n (&f->shr->has_event, 0);
}
/**
@@ -768,7 +771,7 @@ svm_fifo_unset_event (svm_fifo_t * f)
static inline void
svm_fifo_add_want_deq_ntf (svm_fifo_t * f, u8 ntf_type)
{
- f->want_deq_ntf |= ntf_type;
+ f->shr->want_deq_ntf |= ntf_type;
}
/**
@@ -782,7 +785,7 @@ svm_fifo_add_want_deq_ntf (svm_fifo_t * f, u8 ntf_type)
static inline void
svm_fifo_del_want_deq_ntf (svm_fifo_t * f, u8 ntf_type)
{
- f->want_deq_ntf &= ~ntf_type;
+ f->shr->want_deq_ntf &= ~ntf_type;
}
/**
@@ -800,7 +803,8 @@ static inline void
svm_fifo_clear_deq_ntf (svm_fifo_t * f)
{
/* Set the flag if want_notif_if_full was the only ntf requested */
- f->has_deq_ntf = f->want_deq_ntf == SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL;
+ f->shr->has_deq_ntf =
+ f->shr->want_deq_ntf == SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL;
svm_fifo_del_want_deq_ntf (f, SVM_FIFO_WANT_DEQ_NOTIF);
}
@@ -816,7 +820,7 @@ svm_fifo_clear_deq_ntf (svm_fifo_t * f)
static inline void
svm_fifo_reset_has_deq_ntf (svm_fifo_t * f)
{
- f->has_deq_ntf = 0;
+ f->shr->has_deq_ntf = 0;
}
/**
@@ -832,7 +836,7 @@ svm_fifo_reset_has_deq_ntf (svm_fifo_t * f)
static inline u8
svm_fifo_needs_deq_ntf (svm_fifo_t * f, u32 n_last_deq)
{
- u8 want_ntf = f->want_deq_ntf;
+ u8 want_ntf = f->shr->want_deq_ntf;
if (PREDICT_TRUE (want_ntf == SVM_FIFO_NO_DEQ_NOTIF))
return 0;
@@ -841,13 +845,14 @@ svm_fifo_needs_deq_ntf (svm_fifo_t * f, u32 n_last_deq)
if (want_ntf & SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL)
{
u32 max_deq = svm_fifo_max_dequeue_cons (f);
- u32 size = f->size;
- if (!f->has_deq_ntf && max_deq < size && max_deq + n_last_deq >= size)
+ u32 size = f->shr->size;
+ if (!f->shr->has_deq_ntf && max_deq < size &&
+ max_deq + n_last_deq >= size)
return 1;
}
if (want_ntf & SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY)
{
- if (!f->has_deq_ntf && svm_fifo_is_empty (f))
+ if (!f->shr->has_deq_ntf && svm_fifo_is_empty (f))
return 1;
}
return 0;