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-rw-r--r--src/plugins/unittest/session_test.c2
-rw-r--r--src/plugins/unittest/svm_fifo_test.c27
-rw-r--r--src/svm/fifo_segment.c485
-rw-r--r--src/svm/fifo_segment.h39
-rw-r--r--src/svm/svm_fifo.h5
-rw-r--r--src/vnet/session/application_local.c3
-rw-r--r--src/vnet/session/application_worker.c3
-rw-r--r--src/vnet/session/segment_manager.c114
-rw-r--r--src/vnet/session/segment_manager.h3
9 files changed, 411 insertions, 270 deletions
diff --git a/src/plugins/unittest/session_test.c b/src/plugins/unittest/session_test.c
index 819c42661ae..8d5566feb46 100644
--- a/src/plugins/unittest/session_test.c
+++ b/src/plugins/unittest/session_test.c
@@ -1814,7 +1814,7 @@ session_test_mq_speed (vlib_main_t * vm, unformat_input_t * input)
}
sm = app_worker_get_or_alloc_connect_segment_manager (app_wrk);
- segment_manager_alloc_session_fifos (sm, &rx_fifo, &tx_fifo);
+ segment_manager_alloc_session_fifos (sm, 0, &rx_fifo, &tx_fifo);
s.rx_fifo = rx_fifo;
s.tx_fifo = tx_fifo;
s.session_state = SESSION_STATE_READY;
diff --git a/src/plugins/unittest/svm_fifo_test.c b/src/plugins/unittest/svm_fifo_test.c
index a715fa2a660..9b3ad06fc5a 100644
--- a/src/plugins/unittest/svm_fifo_test.c
+++ b/src/plugins/unittest/svm_fifo_test.c
@@ -2012,6 +2012,13 @@ sfifo_test_fifo_replay (vlib_main_t * vm, unformat_input_t * input)
static fifo_segment_main_t segment_main;
+static svm_fifo_t *
+fifo_segment_alloc_fifo (fifo_segment_t * fs, u32 data_bytes,
+ fifo_segment_ftype_t ftype)
+{
+ return fifo_segment_alloc_fifo_w_slice (fs, 0, data_bytes, ftype);
+}
+
static int
sfifo_test_fifo_segment_hello_world (int verbose)
{
@@ -2340,9 +2347,7 @@ sfifo_test_fifo_segment_slave (int verbose)
fifo_segment_create_args_t _a, *a = &_a;
fifo_segment_main_t *sm = &segment_main;
u8 *test_data, *retrieved_data = 0;
- fifo_segment_t *sp;
- fifo_segment_header_t *fsh;
- ssvm_shared_header_t *sh;
+ fifo_segment_t *fs;
svm_fifo_t *f;
u32 *result;
int rv, i;
@@ -2357,13 +2362,11 @@ sfifo_test_fifo_segment_slave (int verbose)
SFIFO_TEST (!rv, "svm_fifo_segment_attach returned %d", rv);
- sp = fifo_segment_get_segment (sm, a->new_segment_indices[0]);
+ fs = fifo_segment_get_segment (sm, a->new_segment_indices[0]);
vec_free (a->new_segment_indices);
- sh = sp->ssvm.sh;
- fsh = (fifo_segment_header_t *) sh->opaque[0];
/* might wanna wait.. */
- f = fsh->fifos;
+ f = fifo_segment_get_slice_fifo_list (fs, 0);
/* Lazy bastards united */
test_data = format (0, "Hello world%c", 0);
@@ -2530,7 +2533,7 @@ sfifo_test_fifo_segment_prealloc (int verbose)
free_space = fifo_segment_free_bytes (fs);
SFIFO_TEST (free_space <= 256 << 10, "free space expected %u is %u",
256 << 10, free_space);
- rv = fifo_segment_prealloc_fifo_chunks (fs, 4096, 50);
+ rv = fifo_segment_prealloc_fifo_chunks (fs, 0, 4096, 50);
SFIFO_TEST (rv == 0, "chunk prealloc should work");
rv = fifo_segment_num_free_chunks (fs, 4096);
SFIFO_TEST (rv == 50, "prealloc chunks expected %u is %u", 50, rv);
@@ -2542,7 +2545,7 @@ sfifo_test_fifo_segment_prealloc (int verbose)
SFIFO_TEST (rv == 4096 * 50, "chunk free space expected %u is %u",
4096 * 50, rv);
- rv = fifo_segment_prealloc_fifo_hdrs (fs, 50);
+ rv = fifo_segment_prealloc_fifo_hdrs (fs, 0, 50);
SFIFO_TEST (rv == 0, "fifo hdr prealloc should work");
rv = fifo_segment_num_free_fifos (fs);
SFIFO_TEST (rv == 50, "prealloc fifo hdrs expected %u is %u", 50, rv);
@@ -2585,7 +2588,7 @@ sfifo_test_fifo_segment_prealloc (int verbose)
/* Preallocate as many more chunks as possible. Heap is almost full
* so we may not use all the free space*/
alloc = 0;
- while (!fifo_segment_prealloc_fifo_chunks (fs, 4096, 1))
+ while (!fifo_segment_prealloc_fifo_chunks (fs, 0, 4096, 1))
alloc++;
SFIFO_TEST (alloc, "chunk prealloc should work %u", alloc);
rv = fifo_segment_num_free_chunks (fs, 4096);
@@ -2607,10 +2610,10 @@ sfifo_test_fifo_segment_prealloc (int verbose)
f = fifo_segment_alloc_fifo (fs, 200 << 10, FIFO_SEGMENT_RX_FIFO);
SFIFO_TEST (f == 0, "fifo alloc should fail");
- rv = fifo_segment_prealloc_fifo_chunks (fs, 4096, 50);
+ rv = fifo_segment_prealloc_fifo_chunks (fs, 0, 4096, 50);
SFIFO_TEST (rv == -1, "chunk prealloc should fail");
- rv = fifo_segment_prealloc_fifo_hdrs (fs, 50);
+ rv = fifo_segment_prealloc_fifo_hdrs (fs, 0, 50);
SFIFO_TEST (rv == -1, "fifo hdr prealloc should fail");
/*
diff --git a/src/svm/fifo_segment.c b/src/svm/fifo_segment.c
index 698a422127d..95b88836ddb 100644
--- a/src/svm/fifo_segment.c
+++ b/src/svm/fifo_segment.c
@@ -34,6 +34,30 @@ fs_free_space (fifo_segment_t * fs)
return dlminfo.fordblks;
}
+static inline void
+fsh_free_bytes_sub (fifo_segment_header_t * fsh, int size)
+{
+ clib_atomic_fetch_sub_rel (&fsh->n_free_bytes, size);
+}
+
+static inline uword
+fsh_n_free_bytes (fifo_segment_header_t * fsh)
+{
+ return clib_atomic_load_relax_n (&fsh->n_free_bytes);
+}
+
+static inline fifo_segment_slice_t *
+fsh_slice_get (fifo_segment_header_t * fsh, u32 slice_index)
+{
+ return &fsh->slices[slice_index];
+}
+
+static inline void
+fsh_active_fifos_update (fifo_segment_header_t * fsh, int inc)
+{
+ clib_atomic_fetch_add_rel (&fsh->n_active_fifos, inc);
+}
+
/**
* Initialize fifo segment shared header
*/
@@ -41,15 +65,45 @@ int
fifo_segment_init (fifo_segment_t * fs)
{
fifo_segment_header_t *fsh;
+ fifo_segment_slice_t *fss;
ssvm_shared_header_t *sh;
+ u32 max_chunk_sz;
+ uword max_fifo;
void *oldheap;
+ int i;
sh = fs->ssvm.sh;
oldheap = ssvm_push_heap (sh);
- fsh = clib_mem_alloc (sizeof (*fsh));
+ /*
+ * Manually align the fifo segment header to sizeof(uword) = 8 bytes.
+ * Long story made short: the "process-private" fifo segment
+ * is allocated from the main heap, not mmapped. dlmalloc
+ * only guarantees 4-byte alignment, and on aarch64
+ * the fsh can end up 4-byte but not 8-byte aligned.
+ * That eventually causes the atomic op in fifo_segment_update_free_bytes
+ * to backfire.
+ */
+ fsh = clib_mem_alloc_aligned (sizeof (*fsh), sizeof (uword));
clib_memset (fsh, 0, sizeof (*fsh));
fs->h = sh->opaque[0] = fsh;
+ fs->n_slices = clib_max (fs->n_slices, 1);
+
+ fsh->ssvm_sh = fs->ssvm.sh;
+ fsh->n_slices = fs->n_slices;
+ max_fifo = clib_min ((fs_free_space (fs) - 4096) / 2,
+ FIFO_SEGMENT_MAX_FIFO_SIZE);
+ fsh->max_log2_chunk_size = max_log2 (max_fifo);
+
+ fsh->slices = clib_mem_alloc (sizeof (*fss) * fs->n_slices);
+ clib_memset (fsh->slices, 0, sizeof (*fss) * fs->n_slices);
+ max_chunk_sz = fsh->max_log2_chunk_size - FIFO_SEGMENT_MIN_LOG2_FIFO_SIZE;
+
+ for (i = 0; i < fs->n_slices; i++)
+ {
+ fss = fsh_slice_get (fsh, i);
+ vec_validate_init_empty (fss->free_chunks, max_chunk_sz, 0);
+ }
ssvm_pop_heap (oldheap);
@@ -98,30 +152,30 @@ fifo_segment_create (fifo_segment_main_t * sm, fifo_segment_create_args_t * a)
int
fifo_segment_attach (fifo_segment_main_t * sm, fifo_segment_create_args_t * a)
{
- fifo_segment_t *s;
+ fifo_segment_t *fs;
int rv;
- pool_get_zero (sm->segments, s);
+ pool_get_zero (sm->segments, fs);
- s->ssvm.ssvm_size = a->segment_size;
- s->ssvm.my_pid = getpid ();
- s->ssvm.name = format (0, "%s%c", a->segment_name, 0);
- s->ssvm.requested_va = sm->next_baseva;
+ fs->ssvm.ssvm_size = a->segment_size;
+ fs->ssvm.my_pid = getpid ();
+ fs->ssvm.name = format (0, "%s%c", a->segment_name, 0);
+ fs->ssvm.requested_va = sm->next_baseva;
if (a->segment_type == SSVM_SEGMENT_MEMFD)
- s->ssvm.fd = a->memfd_fd;
+ fs->ssvm.fd = a->memfd_fd;
else
- s->ssvm.attach_timeout = sm->timeout_in_seconds;
+ fs->ssvm.attach_timeout = sm->timeout_in_seconds;
- if ((rv = ssvm_slave_init (&s->ssvm, a->segment_type)))
+ if ((rv = ssvm_slave_init (&fs->ssvm, a->segment_type)))
{
- _vec_len (s) = vec_len (s) - 1;
+ _vec_len (fs) = vec_len (fs) - 1;
return (rv);
}
/* Fish the segment header */
- s->h = s->ssvm.sh->opaque[0];
+ fs->h = fs->ssvm.sh->opaque[0];
- vec_add1 (a->new_segment_indices, s - sm->segments);
+ vec_add1 (a->new_segment_indices, fs - sm->segments);
return (0);
}
@@ -139,12 +193,6 @@ fifo_segment_index (fifo_segment_main_t * sm, fifo_segment_t * s)
return s - sm->segments;
}
-void *
-svm_fifo_segment_heap (fifo_segment_t * seg)
-{
- return seg->ssvm.sh->heap;
-}
-
fifo_segment_t *
fifo_segment_get_segment (fifo_segment_main_t * sm, u32 segment_index)
{
@@ -169,41 +217,41 @@ fifo_segment_main_init (fifo_segment_main_t * sm, u64 baseva,
static inline u32
fs_freelist_for_size (u32 size)
{
- return max_log2 (size) - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE);
+ return max_log2 (size) - FIFO_SEGMENT_MIN_LOG2_FIFO_SIZE;
}
static inline u32
fs_freelist_index_to_size (u32 fl_index)
{
- return 1 << (fl_index + max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE));
+ return 1 << (fl_index + FIFO_SEGMENT_MIN_LOG2_FIFO_SIZE);
}
static inline int
-fs_chunk_size_is_valid (u32 size)
+fs_chunk_size_is_valid (fifo_segment_header_t * fsh, u32 size)
{
/*
* 4K minimum. It's not likely that anything good will happen
* with a smaller FIFO.
*/
return size >= FIFO_SEGMENT_MIN_FIFO_SIZE
- && size <= FIFO_SEGMENT_MAX_FIFO_SIZE;
+ && size <= (1 << fsh->max_log2_chunk_size);
}
static svm_fifo_t *
-fs_try_alloc_fifo_freelist (fifo_segment_t * fs, u32 fl_index, u32 data_bytes)
+fs_try_alloc_fifo_freelist (fifo_segment_slice_t * fss,
+ u32 fl_index, u32 data_bytes)
{
- fifo_segment_header_t *fsh = fs->h;
svm_fifo_chunk_t *c;
svm_fifo_t *f;
- f = fsh->free_fifos;
- c = fsh->free_chunks[fl_index];
+ f = fss->free_fifos;
+ c = fss->free_chunks[fl_index];
if (!f || !c)
return 0;
- fsh->free_fifos = f->next;
- fsh->free_chunks[fl_index] = c->next;
+ fss->free_fifos = f->next;
+ fss->free_chunks[fl_index] = c->next;
c->next = c;
c->start_byte = 0;
c->length = data_bytes;
@@ -211,44 +259,44 @@ fs_try_alloc_fifo_freelist (fifo_segment_t * fs, u32 fl_index, u32 data_bytes)
f->start_chunk = c;
f->end_chunk = c;
- fsh->n_fl_chunk_bytes -= fs_freelist_index_to_size (fl_index);
+ fss->n_fl_chunk_bytes -= fs_freelist_index_to_size (fl_index);
return f;
}
static svm_fifo_t *
-fs_try_alloc_fifo_freelist_multi_chunk (fifo_segment_t * fs, u32 data_bytes)
+fs_try_alloc_fifo_freelist_multi_chunk (fifo_segment_header_t * fsh,
+ fifo_segment_slice_t * fss,
+ u32 data_bytes)
{
svm_fifo_chunk_t *c, *first = 0, *last = 0;
- fifo_segment_header_t *fsh = fs->h;
u32 fl_index, fl_size, n_alloc = 0;
svm_fifo_t *f;
- f = fsh->free_fifos;
+ f = fss->free_fifos;
if (!f)
{
- void *oldheap = ssvm_push_heap (fs->ssvm.sh);
+ void *oldheap = ssvm_push_heap (fsh->ssvm_sh);
f = clib_mem_alloc_aligned (sizeof (*f), CLIB_CACHE_LINE_BYTES);
ssvm_pop_heap (oldheap);
if (!f)
return 0;
memset (f, 0, sizeof (*f));
- fsh->n_free_bytes -= sizeof (*f);
+ fsh_free_bytes_sub (fsh, sizeof (*f));
}
else
{
- fsh->free_fifos = f->next;
+ fss->free_fifos = f->next;
}
fl_index = fs_freelist_for_size (data_bytes) - 1;
- vec_validate_init_empty (fsh->free_chunks, fl_index, 0);
fl_size = fs_freelist_index_to_size (fl_index);
while (data_bytes)
{
- c = fsh->free_chunks[fl_index];
+ c = fss->free_chunks[fl_index];
if (c)
{
- fsh->free_chunks[fl_index] = c->next;
+ fss->free_chunks[fl_index] = c->next;
if (!last)
last = c;
c->next = first;
@@ -267,14 +315,15 @@ fs_try_alloc_fifo_freelist_multi_chunk (fifo_segment_t * fs, u32 data_bytes)
f->start_chunk = first;
f->end_chunk = last;
last->next = first;
- fsh->n_fl_chunk_bytes -= n_alloc;
+ fss->n_fl_chunk_bytes -= n_alloc;
return f;
}
static int
-fs_try_alloc_fifo_batch (fifo_segment_t * fs, u32 fl_index, u32 batch_size)
+fs_try_alloc_fifo_batch (fifo_segment_header_t * fsh,
+ fifo_segment_slice_t * fss,
+ u32 fl_index, u32 batch_size)
{
- fifo_segment_header_t *fsh = fs->h;
u32 size, hdrs, rounded_data_size;
svm_fifo_chunk_t *c;
svm_fifo_t *f;
@@ -282,12 +331,11 @@ fs_try_alloc_fifo_batch (fifo_segment_t * fs, u32 fl_index, u32 batch_size)
u8 *fmem;
int i;
- vec_validate_init_empty (fsh->free_chunks, fl_index, 0);
rounded_data_size = fs_freelist_index_to_size (fl_index);
hdrs = sizeof (*f) + sizeof (*c);
size = (hdrs + rounded_data_size) * batch_size;
- oldheap = ssvm_push_heap (fs->ssvm.sh);
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
fmem = clib_mem_alloc_aligned_at_offset (size, CLIB_CACHE_LINE_BYTES,
0 /* align_offset */ ,
0 /* os_out_of_memory */ );
@@ -302,18 +350,18 @@ fs_try_alloc_fifo_batch (fifo_segment_t * fs, u32 fl_index, u32 batch_size)
{
f = (svm_fifo_t *) fmem;
memset (f, 0, sizeof (*f));
- f->next = fsh->free_fifos;
- fsh->free_fifos = f;
+ f->next = fss->free_fifos;
+ fss->free_fifos = f;
c = (svm_fifo_chunk_t *) (fmem + sizeof (*f));
c->start_byte = 0;
c->length = rounded_data_size;
- c->next = fsh->free_chunks[fl_index];
- fsh->free_chunks[fl_index] = c;
+ c->next = fss->free_chunks[fl_index];
+ fss->free_chunks[fl_index] = c;
fmem += hdrs + rounded_data_size;
}
- fsh->n_fl_chunk_bytes += batch_size * rounded_data_size;
- fsh->n_free_bytes -= size;
+ fss->n_fl_chunk_bytes += batch_size * rounded_data_size;
+ fsh_free_bytes_sub (fsh, size);
return 0;
}
@@ -328,45 +376,46 @@ fs_try_alloc_fifo_batch (fifo_segment_t * fs, u32 fl_index, u32 batch_size)
* - grab multiple fifo chunks from freelists
*/
static svm_fifo_t *
-fs_try_alloc_fifo (fifo_segment_t * fs, u32 data_bytes)
+fs_try_alloc_fifo (fifo_segment_header_t * fsh, fifo_segment_slice_t * fss,
+ u32 data_bytes)
{
- fifo_segment_header_t *fsh = fs->h;
u32 fifo_sz, fl_index;
svm_fifo_t *f = 0;
+ uword n_free_bytes;
fl_index = fs_freelist_for_size (data_bytes);
- vec_validate_init_empty (fsh->free_chunks, fl_index, 0);
fifo_sz = sizeof (svm_fifo_t) + sizeof (svm_fifo_chunk_t);
fifo_sz += 1 << max_log2 (data_bytes);
- if (fsh->free_fifos && fsh->free_chunks[fl_index])
+ if (fss->free_fifos && fss->free_chunks[fl_index])
{
- f = fs_try_alloc_fifo_freelist (fs, fl_index, data_bytes);
+ f = fs_try_alloc_fifo_freelist (fss, fl_index, data_bytes);
if (f)
goto done;
}
- if (fifo_sz * FIFO_SEGMENT_ALLOC_BATCH_SIZE < fsh->n_free_bytes)
+ n_free_bytes = fsh_n_free_bytes (fsh);
+ if (fifo_sz * FIFO_SEGMENT_ALLOC_BATCH_SIZE < n_free_bytes)
{
- if (fs_try_alloc_fifo_batch (fs, fl_index,
+ if (fs_try_alloc_fifo_batch (fsh, fss, fl_index,
FIFO_SEGMENT_ALLOC_BATCH_SIZE))
goto done;
- f = fs_try_alloc_fifo_freelist (fs, fl_index, data_bytes);
+ f = fs_try_alloc_fifo_freelist (fss, fl_index, data_bytes);
goto done;
}
- if (fifo_sz <= fsh->n_free_bytes)
+ if (fifo_sz <= n_free_bytes)
{
- void *oldheap = ssvm_push_heap (fs->ssvm.sh);
+ void *oldheap = ssvm_push_heap (fsh->ssvm_sh);
f = svm_fifo_create (data_bytes);
ssvm_pop_heap (oldheap);
if (f)
{
- fsh->n_free_bytes -= fifo_sz;
+ fsh_free_bytes_sub (fsh, fifo_sz);
goto done;
}
}
- if (data_bytes <= fsh->n_fl_chunk_bytes)
- f = fs_try_alloc_fifo_freelist_multi_chunk (fs, data_bytes);
+ if (data_bytes <= fss->n_fl_chunk_bytes)
+ f = fs_try_alloc_fifo_freelist_multi_chunk (fsh, fss, data_bytes);
done:
@@ -377,32 +426,29 @@ done:
* Allocate fifo in fifo segment
*/
svm_fifo_t *
-fifo_segment_alloc_fifo (fifo_segment_t * fs, u32 data_bytes,
- fifo_segment_ftype_t ftype)
+fifo_segment_alloc_fifo_w_slice (fifo_segment_t * fs, u32 slice_index,
+ u32 data_bytes, fifo_segment_ftype_t ftype)
{
- fifo_segment_header_t *fsh;
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
svm_fifo_t *f = 0;
- if (!fs_chunk_size_is_valid (data_bytes))
- {
- clib_warning ("fifo size out of range %d", data_bytes);
- return 0;
- }
-
- fsh = fs->h;
- ssvm_lock_non_recursive (fs->ssvm.sh, 1);
+ ASSERT (slice_index < fs->n_slices);
- f = fs_try_alloc_fifo (fs, data_bytes);
+ fss = fsh_slice_get (fsh, slice_index);
+ f = fs_try_alloc_fifo (fsh, fss, data_bytes);
if (!f)
goto done;
+ 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)
{
- void *oldheap = ssvm_push_heap (fs->ssvm.sh);
+ void *oldheap = ssvm_push_heap (fsh->ssvm_sh);
svm_fifo_init_chunks (f);
ssvm_pop_heap (oldheap);
}
@@ -413,18 +459,17 @@ fifo_segment_alloc_fifo (fifo_segment_t * fs, u32 data_bytes,
* only one. */
if (ftype == FIFO_SEGMENT_RX_FIFO)
{
- if (fsh->fifos)
+ if (fss->fifos)
{
- fsh->fifos->prev = f;
- f->next = fsh->fifos;
+ fss->fifos->prev = f;
+ f->next = fss->fifos;
}
- fsh->fifos = f;
+ fss->fifos = f;
f->flags |= SVM_FIFO_F_LL_TRACKED;
}
- fsh->n_active_fifos++;
+ fsh_active_fifos_update (fsh, 1);
done:
- ssvm_unlock_non_recursive (fs->ssvm.sh);
return (f);
}
@@ -434,9 +479,9 @@ done:
void
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_header_t *fsh;
- ssvm_shared_header_t *sh;
+ fifo_segment_slice_t *fss;
void *oldheap;
int fl_index;
@@ -445,10 +490,7 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
if (--f->refcnt > 0)
return;
- sh = fs->ssvm.sh;
- fsh = fs->h;
-
- ssvm_lock_non_recursive (sh, 2);
+ fss = fsh_slice_get (fsh, f->slice_index);
/* Remove from active list. Only rx fifos are tracked */
if (f->flags & SVM_FIFO_F_LL_TRACKED)
@@ -456,16 +498,16 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
if (f->prev)
f->prev->next = f->next;
else
- fsh->fifos = f->next;
+ fss->fifos = f->next;
if (f->next)
f->next->prev = f->prev;
f->flags &= ~SVM_FIFO_F_LL_TRACKED;
}
/* Add to free list */
- f->next = fsh->free_fifos;
+ f->next = fss->free_fifos;
f->prev = 0;
- fsh->free_fifos = f;
+ fss->free_fifos = f;
/* Free fifo chunks */
cur = f->start_chunk;
@@ -473,10 +515,10 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
{
next = cur->next;
fl_index = fs_freelist_for_size (cur->length);
- ASSERT (fl_index < vec_len (fsh->free_chunks));
- cur->next = fsh->free_chunks[fl_index];
- fsh->free_chunks[fl_index] = cur;
- fsh->n_fl_chunk_bytes += fs_freelist_index_to_size (fl_index);
+ ASSERT (fl_index < vec_len (fss->free_chunks));
+ cur->next = fss->free_chunks[fl_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);
@@ -484,7 +526,7 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
f->start_chunk = f->end_chunk = f->new_chunks = 0;
f->head_chunk = f->tail_chunk = f->ooo_enq = f->ooo_deq = 0;
- oldheap = ssvm_push_heap (sh);
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
svm_fifo_free_chunk_lookup (f);
ssvm_pop_heap (oldheap);
@@ -497,23 +539,25 @@ fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f)
f->master_thread_index = ~0;
}
- fsh->n_active_fifos--;
- ssvm_unlock_non_recursive (sh);
+ fsh_active_fifos_update (fsh, -1);
}
int
-fifo_segment_prealloc_fifo_hdrs (fifo_segment_t * fs, u32 batch_size)
+fifo_segment_prealloc_fifo_hdrs (fifo_segment_t * fs, u32 slice_index,
+ u32 batch_size)
{
fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
svm_fifo_t *f;
void *oldheap;
u32 size;
u8 *fmem;
int i;
+ fss = fsh_slice_get (fsh, slice_index);
size = (sizeof (*f)) * batch_size;
- oldheap = ssvm_push_heap (fs->ssvm.sh);
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
fmem = clib_mem_alloc_aligned_at_offset (size, CLIB_CACHE_LINE_BYTES,
0 /* align_offset */ ,
0 /* os_out_of_memory */ );
@@ -528,39 +572,39 @@ fifo_segment_prealloc_fifo_hdrs (fifo_segment_t * fs, u32 batch_size)
{
f = (svm_fifo_t *) fmem;
memset (f, 0, sizeof (*f));
- f->next = fsh->free_fifos;
- fsh->free_fifos = f;
+ f->next = fss->free_fifos;
+ fss->free_fifos = f;
fmem += sizeof (*f);
}
- fsh->n_free_bytes -= size;
+ fsh_free_bytes_sub (fsh, size);
return 0;
}
int
-fifo_segment_prealloc_fifo_chunks (fifo_segment_t * fs, u32 chunk_size,
- u32 batch_size)
+fifo_segment_prealloc_fifo_chunks (fifo_segment_t * fs, u32 slice_index,
+ u32 chunk_size, u32 batch_size)
{
- fifo_segment_header_t *fsh = fs->h;
u32 size, rounded_data_size, fl_index;
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
svm_fifo_chunk_t *c;
void *oldheap;
u8 *cmem;
int i;
- if (!fs_chunk_size_is_valid (chunk_size))
+ if (!fs_chunk_size_is_valid (fsh, chunk_size))
{
clib_warning ("chunk size out of range %d", chunk_size);
return -1;
}
fl_index = fs_freelist_for_size (chunk_size);
- vec_validate_init_empty (fsh->free_chunks, fl_index, 0);
rounded_data_size = fs_freelist_index_to_size (fl_index);
size = (sizeof (*c) + rounded_data_size) * batch_size;
- oldheap = ssvm_push_heap (fs->ssvm.sh);
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
cmem = clib_mem_alloc_aligned_at_offset (size, CLIB_CACHE_LINE_BYTES,
0 /* align_offset */ ,
0 /* os_out_of_memory */ );
@@ -570,19 +614,21 @@ fifo_segment_prealloc_fifo_chunks (fifo_segment_t * fs, u32 chunk_size,
if (cmem == 0)
return -1;
+ fss = fsh_slice_get (fsh, slice_index);
+
/* Carve fifo + chunk space */
for (i = 0; i < batch_size; i++)
{
c = (svm_fifo_chunk_t *) cmem;
c->start_byte = 0;
c->length = rounded_data_size;
- c->next = fsh->free_chunks[fl_index];
- fsh->free_chunks[fl_index] = c;
+ c->next = fss->free_chunks[fl_index];
+ fss->free_chunks[fl_index] = c;
cmem += sizeof (*c) + rounded_data_size;
}
- fsh->n_fl_chunk_bytes += batch_size * rounded_data_size;
- fsh->n_free_bytes -= size;
+ fss->n_fl_chunk_bytes += batch_size * rounded_data_size;
+ fsh_free_bytes_sub (fsh, size);
return 0;
}
@@ -596,21 +642,23 @@ fifo_segment_preallocate_fifo_pairs (fifo_segment_t * fs,
u32 * n_fifo_pairs)
{
u32 rx_rounded_data_size, tx_rounded_data_size, pair_size, pairs_to_alloc;
- int rx_fl_index, tx_fl_index;
+ fifo_segment_header_t *fsh = fs->h;
+ int rx_fl_index, tx_fl_index, i;
+ fifo_segment_slice_t *fss;
+ u32 hdrs, pairs_per_slice;
uword space_available;
- u32 hdrs;
/* Parameter check */
if (rx_fifo_size == 0 || tx_fifo_size == 0 || *n_fifo_pairs == 0)
return;
- if (!fs_chunk_size_is_valid (rx_fifo_size))
+ if (!fs_chunk_size_is_valid (fsh, rx_fifo_size))
{
clib_warning ("rx fifo_size out of range %d", rx_fifo_size);
return;
}
- if (!fs_chunk_size_is_valid (tx_fifo_size))
+ if (!fs_chunk_size_is_valid (fsh, tx_fifo_size))
{
clib_warning ("tx fifo_size out of range %d", tx_fifo_size);
return;
@@ -628,42 +676,39 @@ fifo_segment_preallocate_fifo_pairs (fifo_segment_t * fs,
space_available = fs_free_space (fs);
pairs_to_alloc = space_available / pair_size;
pairs_to_alloc = clib_min (pairs_to_alloc, *n_fifo_pairs);
+ pairs_per_slice = pairs_to_alloc / fs->n_slices;
- if (!pairs_to_alloc)
+ if (!pairs_per_slice)
return;
- if (fs_try_alloc_fifo_batch (fs, rx_fl_index, pairs_to_alloc))
- clib_warning ("rx prealloc failed: pairs %u", pairs_to_alloc);
- if (fs_try_alloc_fifo_batch (fs, tx_fl_index, pairs_to_alloc))
- clib_warning ("tx prealloc failed: pairs %u", pairs_to_alloc);
+ for (i = 0; i < fs->n_slices; i++)
+ {
+ fss = fsh_slice_get (fsh, i);
+ if (fs_try_alloc_fifo_batch (fsh, fss, rx_fl_index, pairs_to_alloc))
+ clib_warning ("rx prealloc failed: pairs %u", pairs_to_alloc);
+ if (fs_try_alloc_fifo_batch (fsh, fss, tx_fl_index, pairs_to_alloc))
+ clib_warning ("tx prealloc failed: pairs %u", pairs_to_alloc);
+ }
/* Account for the pairs allocated */
- *n_fifo_pairs -= pairs_to_alloc;
+ *n_fifo_pairs -= pairs_per_slice * fs->n_slices;
}
int
fifo_segment_grow_fifo (fifo_segment_t * fs, svm_fifo_t * f, u32 chunk_size)
{
- ssvm_shared_header_t *sh;
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
svm_fifo_chunk_t *c;
void *oldheap;
int fl_index;
- if (!fs_chunk_size_is_valid (chunk_size))
- {
- clib_warning ("chunk size out of range %d", chunk_size);
- return -1;
- }
-
fl_index = fs_freelist_for_size (chunk_size);
+ fss = fsh_slice_get (fsh, f->slice_index);
- sh = fs->ssvm.sh;
- ssvm_lock_non_recursive (sh, 1);
-
- vec_validate_init_empty (fs->h->free_chunks, fl_index, 0);
- c = fs->h->free_chunks[fl_index];
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
- oldheap = ssvm_push_heap (sh);
+ c = fss->free_chunks[fl_index];
if (!c)
{
@@ -671,50 +716,47 @@ fifo_segment_grow_fifo (fifo_segment_t * fs, svm_fifo_t * f, u32 chunk_size)
if (!c)
{
ssvm_pop_heap (oldheap);
- ssvm_unlock_non_recursive (sh);
return -1;
}
- fs->h->n_free_bytes -= chunk_size + sizeof (*c);
+ fsh_free_bytes_sub (fsh, chunk_size + sizeof (*c));
}
else
{
- fs->h->free_chunks[fl_index] = c->next;
+ fss->free_chunks[fl_index] = c->next;
c->next = 0;
- fs->h->n_fl_chunk_bytes -= fs_freelist_index_to_size (fl_index);
+ fss->n_fl_chunk_bytes -= fs_freelist_index_to_size (fl_index);
}
svm_fifo_add_chunk (f, c);
ssvm_pop_heap (oldheap);
- ssvm_unlock_non_recursive (sh);
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;
- ssvm_shared_header_t *sh;
+ fifo_segment_slice_t *fss;
void *oldheap;
int fl_index;
- sh = fs->ssvm.sh;
- ssvm_lock_non_recursive (sh, 1);
-
- oldheap = ssvm_push_heap (sh);
+ oldheap = ssvm_push_heap (fsh->ssvm_sh);
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 = fs->h->free_chunks[fl_index];
- fs->h->free_chunks[fl_index] = cur;
+ cur->next = fss->free_chunks[fl_index];
+ fss->free_chunks[fl_index] = cur;
cur = next;
}
ssvm_pop_heap (oldheap);
- ssvm_unlock_non_recursive (sh);
return 0;
}
@@ -725,17 +767,16 @@ fifo_segment_collect_fifo_chunks (fifo_segment_t * fs, svm_fifo_t * f)
u32
fifo_segment_num_fifos (fifo_segment_t * fs)
{
- return fs->h->n_active_fifos;
+ return clib_atomic_load_relax_n (&fs->h->n_active_fifos);
}
-u32
-fifo_segment_num_free_fifos (fifo_segment_t * fs)
+static u32
+fs_slice_num_free_fifos (fifo_segment_slice_t * fss)
{
- fifo_segment_header_t *fsh = fs->h;
svm_fifo_t *f;
u32 count = 0;
- f = fsh->free_fifos;
+ f = fss->free_fifos;
if (f == 0)
return 0;
@@ -748,21 +789,34 @@ fifo_segment_num_free_fifos (fifo_segment_t * fs)
}
u32
-fifo_segment_num_free_chunks (fifo_segment_t * fs, u32 size)
+fifo_segment_num_free_fifos (fifo_segment_t * fs)
+{
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
+ int slice_index;
+ u32 count = 0;
+
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
+ {
+ fss = fsh_slice_get (fsh, slice_index);
+ count += fs_slice_num_free_fifos (fss);
+ }
+ return count;
+}
+
+static u32
+fs_slice_num_free_chunks (fifo_segment_slice_t * fss, u32 size)
{
u32 count = 0, rounded_size, fl_index;
- fifo_segment_header_t *fsh;
svm_fifo_chunk_t *c;
int i;
- fsh = fs->h;
-
/* Count all free chunks? */
if (size == ~0)
{
- for (i = 0; i < vec_len (fsh->free_chunks); i++)
+ for (i = 0; i < vec_len (fss->free_chunks); i++)
{
- c = fsh->free_chunks[i];
+ c = fss->free_chunks[i];
if (c == 0)
continue;
@@ -778,10 +832,10 @@ fifo_segment_num_free_chunks (fifo_segment_t * fs, u32 size)
rounded_size = (1 << (max_log2 (size)));
fl_index = fs_freelist_for_size (rounded_size);
- if (fl_index >= vec_len (fsh->free_chunks))
+ if (fl_index >= vec_len (fss->free_chunks))
return 0;
- c = fsh->free_chunks[fl_index];
+ c = fss->free_chunks[fl_index];
if (c == 0)
return 0;
@@ -793,34 +847,76 @@ fifo_segment_num_free_chunks (fifo_segment_t * fs, u32 size)
return count;
}
+u32
+fifo_segment_num_free_chunks (fifo_segment_t * fs, u32 size)
+{
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
+ int slice_index;
+ u32 count = 0;
+
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
+ {
+ fss = fsh_slice_get (fsh, slice_index);
+ count += fs_slice_num_free_chunks (fss, size);
+ }
+ return count;
+}
+
void
fifo_segment_update_free_bytes (fifo_segment_t * fs)
{
- fs->h->n_free_bytes = fs_free_space (fs);
+ fifo_segment_header_t *fsh = fs->h;
+ clib_atomic_store_rel_n (&fsh->n_free_bytes, fs_free_space (fs));
}
u32
fifo_segment_free_bytes (fifo_segment_t * fs)
{
- return fs->h->n_free_bytes;
+ return fsh_n_free_bytes (fs->h);
}
-u32
+uword
fifo_segment_fl_chunk_bytes (fifo_segment_t * fs)
{
- return fs->h->n_fl_chunk_bytes;
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
+ uword n_bytes = 0;
+ int slice_index;
+
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
+ {
+ fss = fsh_slice_get (fsh, slice_index);
+ n_bytes += fss->n_fl_chunk_bytes;
+ }
+
+ return n_bytes;
}
u8
fifo_segment_has_fifos (fifo_segment_t * fs)
{
- return fs->h->fifos != 0;
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
+ int slice_index;
+
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
+ {
+ fss = fsh_slice_get (fsh, slice_index);
+ if (fss->fifos)
+ return 1;
+ }
+ return 0;
}
svm_fifo_t *
-fifo_segment_get_fifo_list (fifo_segment_t * fs)
+fifo_segment_get_slice_fifo_list (fifo_segment_t * fs, u32 slice_index)
{
- return fs->h->fifos;
+ fifo_segment_header_t *fsh = fs->h;
+ fifo_segment_slice_t *fss;
+
+ fss = fsh_slice_get (fsh, slice_index);
+ return fss->fifos;
}
u8 *
@@ -850,10 +946,12 @@ format_fifo_segment (u8 * s, va_list * args)
u32 count, indent, active_fifos, free_fifos, fifo_hdr = 0, chunk_size;
fifo_segment_t *fs = va_arg (*args, fifo_segment_t *);
int verbose __attribute__ ((unused)) = va_arg (*args, int);
- u32 est_chunk_bytes, est_free_seg_bytes;
+ u32 est_chunk_bytes, est_free_seg_bytes, free_chunks;
+ uword chunk_bytes = 0, free_seg_bytes;
fifo_segment_header_t *fsh;
+ fifo_segment_slice_t *fss;
svm_fifo_chunk_t *c;
- u64 chunk_bytes = 0;
+ u32 slice_index;
char *address;
size_t size;
int i;
@@ -861,9 +959,9 @@ format_fifo_segment (u8 * s, va_list * args)
indent = format_get_indent (s) + 2;
#if USE_DLMALLOC == 0
s = format (s, "%U segment heap: %U\n", format_white_space, indent,
- format_mheap, svm_fifo_segment_heap (fs), verbose);
+ format_mheap, fsh->ssvm_sh->heap, verbose);
s = format (s, "%U segment has %u active fifos\n",
- format_white_space, indent, fifo_segment_num_fifos (fs));
+ format_white_space, indent, fifo_segment_num_fifos (fsh));
#endif
if (fs == 0)
@@ -873,7 +971,6 @@ format_fifo_segment (u8 * s, va_list * args)
return s;
}
- fsh = fs->h;
fifo_segment_info (fs, &address, &size);
active_fifos = fifo_segment_num_fifos (fs);
free_fifos = fifo_segment_num_free_fifos (fs);
@@ -885,39 +982,47 @@ format_fifo_segment (u8 * s, va_list * args)
if (!verbose)
return s;
- if (fsh->free_chunks)
+ fsh = fs->h;
+
+ free_chunks = fifo_segment_num_free_chunks (fs, ~0);
+ if (free_chunks)
s = format (s, "\n\n%UFree chunks by size:\n", format_white_space,
indent + 2);
else
s = format (s, "\n");
- for (i = 0; i < vec_len (fsh->free_chunks); i++)
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- c = fsh->free_chunks[i];
- if (c == 0)
- continue;
- count = 0;
- while (c)
+ fss = fsh_slice_get (fsh, slice_index);
+ for (i = 0; i < vec_len (fss->free_chunks); i++)
{
- c = c->next;
- count++;
- }
+ c = fss->free_chunks[i];
+ if (c == 0)
+ continue;
+ count = 0;
+ while (c)
+ {
+ c = c->next;
+ count++;
+ }
- chunk_size = fs_freelist_index_to_size (i);
- s = format (s, "%U%-5u kB: %u\n", format_white_space, indent + 2,
- chunk_size >> 10, count);
+ chunk_size = fs_freelist_index_to_size (i);
+ s = format (s, "%U%-5u kB: %u\n", format_white_space, indent + 2,
+ chunk_size >> 10, count);
- chunk_bytes += count * chunk_size;
+ chunk_bytes += count * chunk_size;
+ }
}
fifo_hdr = free_fifos * sizeof (svm_fifo_t);
est_chunk_bytes = fifo_segment_fl_chunk_bytes (fs);
- est_free_seg_bytes = fsh->n_free_bytes;
+ est_free_seg_bytes = fifo_segment_free_bytes (fs);
fifo_segment_update_free_bytes (fs);
+ free_seg_bytes = fifo_segment_free_bytes (fs);
s = format (s, "\n%Useg free bytes: %U (%u) estimated: %U (%u)\n",
format_white_space, indent + 2, format_memory_size,
- fsh->n_free_bytes, fsh->n_free_bytes, format_memory_size,
+ free_seg_bytes, free_seg_bytes, format_memory_size,
est_free_seg_bytes, est_free_seg_bytes);
s = format (s, "%Uchunk free bytes: %U (%lu) estimated: %U (%u)\n",
format_white_space, indent + 2, format_memory_size, chunk_bytes,
diff --git a/src/svm/fifo_segment.h b/src/svm/fifo_segment.h
index 7922274cecf..ff36f45c4f2 100644
--- a/src/svm/fifo_segment.h
+++ b/src/svm/fifo_segment.h
@@ -26,8 +26,9 @@ typedef enum
FIFO_SEGMENT_N_FTYPES
} fifo_segment_ftype_t;
-#define FIFO_SEGMENT_MIN_FIFO_SIZE 4096 /* 4kB min fifo size */
-#define FIFO_SEGMENT_MAX_FIFO_SIZE (2 << 30) /* 2GB max fifo size */
+#define FIFO_SEGMENT_MIN_LOG2_FIFO_SIZE 12 /**< 4kB min fifo size */
+#define FIFO_SEGMENT_MIN_FIFO_SIZE 4096 /**< 4kB min fifo size */
+#define FIFO_SEGMENT_MAX_FIFO_SIZE (2 << 30) /**< 2GB max fifo size */
#define FIFO_SEGMENT_ALLOC_BATCH_SIZE 32 /* Allocation quantum */
typedef enum fifo_segment_flags_
@@ -36,21 +37,30 @@ typedef enum fifo_segment_flags_
FIFO_SEGMENT_F_WILL_DELETE = 1 << 1,
} fifo_segment_flags_t;
-typedef struct
+typedef struct fifo_segment_slice_
{
svm_fifo_t *fifos; /**< Linked list of active RX fifos */
svm_fifo_t *free_fifos; /**< Freelists by fifo size */
svm_fifo_chunk_t **free_chunks; /**< Freelists by chunk size */
+ u32 n_fl_chunk_bytes; /**< Chunk bytes on freelist */
+} fifo_segment_slice_t;
+
+typedef struct
+{
+ fifo_segment_slice_t *slices; /** Fixed array of slices */
+ ssvm_shared_header_t *ssvm_sh; /**< Pointer to fs ssvm shared hdr */
+ uword n_free_bytes; /**< Segment free bytes */
u32 n_active_fifos; /**< Number of active fifos */
+ u32 max_log2_chunk_size; /**< Max log2(chunk size) for fs */
u8 flags; /**< Segment flags */
- u32 n_free_bytes; /**< Bytes usable for new allocs */
- u32 n_fl_chunk_bytes; /**< Chunk bytes on freelist */
+ u8 n_slices; /**< Number of slices */
} fifo_segment_header_t;
typedef struct
{
ssvm_private_t ssvm; /**< ssvm segment data */
fifo_segment_header_t *h; /**< fifo segment data */
+ u8 n_slices; /**< number of fifo segment slices */
} fifo_segment_t;
typedef struct
@@ -90,9 +100,10 @@ void fifo_segment_info (fifo_segment_t * seg, char **address, size_t * size);
* @param ftype fifo type @ref fifo_segment_ftype_t
* @return new fifo or 0 if alloc failed
*/
-svm_fifo_t *fifo_segment_alloc_fifo (fifo_segment_t * fs,
- u32 data_bytes,
- fifo_segment_ftype_t ftype);
+svm_fifo_t *fifo_segment_alloc_fifo_w_slice (fifo_segment_t * fs,
+ u32 slice_index,
+ u32 data_bytes,
+ fifo_segment_ftype_t ftype);
/**
* Free fifo allocated in fifo segment
@@ -111,7 +122,8 @@ void fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f);
* @param batch_size number of chunks to be allocated
* @return 0 on success, negative number otherwise
*/
-int fifo_segment_prealloc_fifo_hdrs (fifo_segment_t * fs, u32 batch_size);
+int fifo_segment_prealloc_fifo_hdrs (fifo_segment_t * fs, u32 slice_index,
+ u32 batch_size);
/**
* Try to preallocate fifo chunks on segment
@@ -124,8 +136,8 @@ int fifo_segment_prealloc_fifo_hdrs (fifo_segment_t * fs, u32 batch_size);
* @param batch_size number of chunks to be allocated
* @return 0 on success, negative number otherwise
*/
-int fifo_segment_prealloc_fifo_chunks (fifo_segment_t * fs, u32 chunk_size,
- u32 batch_size);
+int fifo_segment_prealloc_fifo_chunks (fifo_segment_t * fs, u32 slice_index,
+ u32 chunk_size, u32 batch_size);
/**
* Pre-allocates fifo pairs in fifo segment
*
@@ -192,9 +204,10 @@ void fifo_segment_update_free_bytes (fifo_segment_t * fs);
* @param fs fifo segment
* @return free bytes on chunk free lists
*/
-u32 fifo_segment_fl_chunk_bytes (fifo_segment_t * fs);
+uword fifo_segment_fl_chunk_bytes (fifo_segment_t * fs);
u8 fifo_segment_has_fifos (fifo_segment_t * fs);
-svm_fifo_t *fifo_segment_get_fifo_list (fifo_segment_t * fs);
+svm_fifo_t *fifo_segment_get_slice_fifo_list (fifo_segment_t * fs,
+ u32 slice_index);
u32 fifo_segment_num_fifos (fifo_segment_t * fs);
u32 fifo_segment_num_free_fifos (fifo_segment_t * fs);
/**
diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index ce4c53d9abe..0b7c70790c0 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -78,11 +78,12 @@ typedef struct _svm_fifo
CLIB_CACHE_LINE_ALIGN_MARK (shared_first);
u32 size; /**< size of the fifo in bytes */
u32 nitems; /**< usable size (size-1) */
- u8 flags; /**< fifo flags */
svm_fifo_chunk_t *start_chunk;/**< first chunk in fifo chunk list */
svm_fifo_chunk_t *end_chunk; /**< end chunk in fifo chunk list */
svm_fifo_chunk_t *new_chunks; /**< chunks yet to be added to list */
- rb_tree_t chunk_lookup;
+ rb_tree_t chunk_lookup; /**< rbtree for chunk lookup */
+ 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 */
diff --git a/src/vnet/session/application_local.c b/src/vnet/session/application_local.c
index 7d8fb468f5a..97cda12b7da 100644
--- a/src/vnet/session/application_local.c
+++ b/src/vnet/session/application_local.c
@@ -191,7 +191,8 @@ ct_init_local_session (app_worker_t * client_wrk, app_worker_t * server_wrk,
}
seg = segment_manager_get_segment_w_lock (sm, seg_index);
- rv = segment_manager_try_alloc_fifos (seg, props->rx_fifo_size,
+ rv = segment_manager_try_alloc_fifos (seg, ls->thread_index,
+ props->rx_fifo_size,
props->tx_fifo_size, &ls->rx_fifo,
&ls->tx_fifo);
if (rv)
diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c
index c45679735b9..bb51cb71f03 100644
--- a/src/vnet/session/application_worker.c
+++ b/src/vnet/session/application_worker.c
@@ -150,7 +150,8 @@ app_worker_alloc_session_fifos (segment_manager_t * sm, session_t * s)
svm_fifo_t *rx_fifo = 0, *tx_fifo = 0;
int rv;
- if ((rv = segment_manager_alloc_session_fifos (sm, &rx_fifo, &tx_fifo)))
+ if ((rv = segment_manager_alloc_session_fifos (sm, s->thread_index,
+ &rx_fifo, &tx_fifo)))
return rv;
rx_fifo->master_session_index = s->session_index;
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index 9c33e35e8f0..5247b0e7461 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -54,6 +54,7 @@ segment_manager_props_init (segment_manager_props_t * props)
props->rx_fifo_size = sm_main.default_fifo_size;
props->tx_fifo_size = sm_main.default_fifo_size;
props->evt_q_size = sm_main.default_app_mq_size;
+ props->n_slices = vlib_num_workers () + 1;
return props;
}
@@ -151,6 +152,7 @@ segment_manager_add_segment (segment_manager_t * sm, u32 segment_size)
/*
* Initialize fifo segment
*/
+ fs->n_slices = props->n_slices;
fifo_segment_init (fs);
/*
@@ -470,30 +472,34 @@ segment_manager_has_fifos (segment_manager_t * sm)
void
segment_manager_del_sessions (segment_manager_t * sm)
{
- fifo_segment_t *fifo_segment;
session_handle_t *handles = 0, *handle;
+ fifo_segment_t *fs;
session_t *session;
- svm_fifo_t *fifo;
+ int slice_index;
+ svm_fifo_t *f;
ASSERT (pool_elts (sm->segments) != 0);
/* Across all fifo segments used by the server */
/* *INDENT-OFF* */
- segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({
- fifo = fifo_segment_get_fifo_list (fifo_segment);
-
- /*
- * Remove any residual sessions from the session lookup table
- * Don't bother deleting the individual fifos, we're going to
- * throw away the fifo segment in a minute.
- */
- while (fifo)
+ segment_manager_foreach_segment_w_lock (fs, sm, ({
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- session = session_get_if_valid (fifo->master_session_index,
- fifo->master_thread_index);
- if (session)
- vec_add1 (handles, session_handle (session));
- fifo = fifo->next;
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+
+ /*
+ * Remove any residual sessions from the session lookup table
+ * Don't bother deleting the individual fifos, we're going to
+ * throw away the fifo segment in a minute.
+ */
+ while (f)
+ {
+ session = session_get_if_valid (f->master_session_index,
+ f->master_thread_index);
+ if (session)
+ vec_add1 (handles, session_handle (session));
+ f = f->next;
+ }
}
/* Instead of removing the segment, test when cleaning up disconnected
@@ -508,16 +514,19 @@ segment_manager_del_sessions (segment_manager_t * sm)
int
segment_manager_try_alloc_fifos (fifo_segment_t * fifo_segment,
+ u32 thread_index,
u32 rx_fifo_size, u32 tx_fifo_size,
svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo)
{
rx_fifo_size = clib_max (rx_fifo_size, sm_main.default_fifo_size);
- *rx_fifo = fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size,
- FIFO_SEGMENT_RX_FIFO);
+ *rx_fifo = fifo_segment_alloc_fifo_w_slice (fifo_segment, thread_index,
+ rx_fifo_size,
+ FIFO_SEGMENT_RX_FIFO);
tx_fifo_size = clib_max (tx_fifo_size, sm_main.default_fifo_size);
- *tx_fifo = fifo_segment_alloc_fifo (fifo_segment, tx_fifo_size,
- FIFO_SEGMENT_TX_FIFO);
+ *tx_fifo = fifo_segment_alloc_fifo_w_slice (fifo_segment, thread_index,
+ tx_fifo_size,
+ FIFO_SEGMENT_TX_FIFO);
if (*rx_fifo == 0)
{
@@ -544,6 +553,7 @@ segment_manager_try_alloc_fifos (fifo_segment_t * fifo_segment,
int
segment_manager_alloc_session_fifos (segment_manager_t * sm,
+ u32 thread_index,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo)
{
@@ -563,6 +573,7 @@ segment_manager_alloc_session_fifos (segment_manager_t * sm,
/* *INDENT-OFF* */
segment_manager_foreach_segment_w_lock (fs, sm, ({
alloc_fail = segment_manager_try_alloc_fifos (fs,
+ thread_index,
props->rx_fifo_size,
props->tx_fifo_size,
rx_fifo, tx_fifo);
@@ -616,7 +627,8 @@ alloc_check:
return SESSION_ERROR_SEG_CREATE;
}
fs = segment_manager_get_segment_w_lock (sm, new_fs_index);
- alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size,
+ alloc_fail = segment_manager_try_alloc_fifos (fs, thread_index,
+ props->rx_fifo_size,
props->tx_fifo_size,
rx_fifo, tx_fifo);
added_a_segment = 1;
@@ -883,11 +895,13 @@ VLIB_CLI_COMMAND (segment_manager_show_command, static) =
void
segment_manager_format_sessions (segment_manager_t * sm, int verbose)
{
- fifo_segment_t *fifo_segment;
vlib_main_t *vm = vlib_get_main ();
app_worker_t *app_wrk;
+ fifo_segment_t *fs;
const u8 *app_name;
- u8 *s = 0;
+ int slice_index;
+ u8 *s = 0, *str;
+ svm_fifo_t *f;
if (!sm)
{
@@ -905,35 +919,35 @@ segment_manager_format_sessions (segment_manager_t * sm, int verbose)
clib_rwlock_reader_lock (&sm->segments_rwlock);
/* *INDENT-OFF* */
- pool_foreach (fifo_segment, sm->segments, ({
- svm_fifo_t *fifo;
- u8 *str;
-
- fifo = fifo_segment_get_fifo_list (fifo_segment);
- while (fifo)
+ pool_foreach (fs, sm->segments, ({
+ for (slice_index = 0; slice_index < fs->n_slices; slice_index++)
{
- u32 session_index, thread_index;
- session_t *session;
-
- session_index = fifo->master_session_index;
- thread_index = fifo->master_thread_index;
-
- session = session_get (session_index, thread_index);
- str = format (0, "%U", format_session, session, verbose);
-
- if (verbose)
- s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
- app_wrk->api_client_index, app_wrk->connects_seg_manager);
- else
- s = format (s, "%-40s%-20s", str, app_name);
-
- vlib_cli_output (vm, "%v", s);
- vec_reset_length (s);
- vec_free (str);
-
- fifo = fifo->next;
+ f = fifo_segment_get_slice_fifo_list (fs, slice_index);
+ while (f)
+ {
+ u32 session_index, thread_index;
+ session_t *session;
+
+ session_index = f->master_session_index;
+ thread_index = f->master_thread_index;
+
+ session = session_get (session_index, thread_index);
+ str = format (0, "%U", format_session, session, verbose);
+
+ if (verbose)
+ s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
+ app_wrk->api_client_index, app_wrk->connects_seg_manager);
+ else
+ s = format (s, "%-40s%-20s", str, app_name);
+
+ vlib_cli_output (vm, "%v", s);
+ vec_reset_length (s);
+ vec_free (str);
+
+ f = f->next;
+ }
+ vec_free (s);
}
- vec_free (s);
}));
/* *INDENT-ON* */
diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h
index 8358c50ba06..f2a90c8f935 100644
--- a/src/vnet/session/segment_manager.h
+++ b/src/vnet/session/segment_manager.h
@@ -31,6 +31,7 @@ typedef struct _segment_manager_props
u8 add_segment:1; /**< can add new segments flag */
u8 use_mq_eventfd:1; /**< use eventfds for mqs flag */
u8 reserved:6; /**< reserved flags */
+ u8 n_slices; /**< number of fs slices/threads */
ssvm_segment_type_t segment_type; /**< seg type: if set to SSVM_N_TYPES,
private segments are used */
} segment_manager_props_t;
@@ -106,9 +107,11 @@ void segment_manager_segment_reader_unlock (segment_manager_t * sm);
void segment_manager_segment_writer_unlock (segment_manager_t * sm);
int segment_manager_alloc_session_fifos (segment_manager_t * sm,
+ u32 thread_index,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo);
int segment_manager_try_alloc_fifos (fifo_segment_t * fs,
+ u32 thread_index,
u32 rx_fifo_size, u32 tx_fifo_size,
svm_fifo_t ** rx_fifo,
svm_fifo_t ** tx_fifo);