*/
#include <svm/svm_fifo.h>
#include <vlib/vlib.h>
+#include <svm/svm_common.h>
#include <svm/fifo_segment.h>
#define SFIFO_TEST_I(_cond, _comment, _args...) \
SFIFO_TEST (0, "[%d] peeked %u expected %u", j, data_buf[j],
data_pattern[j]);
}
- vec_reset_length (data_buf);
/*
* Dequeue or drop all data
}
else
{
+ memset (data_buf, 0, vec_len (data_pattern));
svm_fifo_dequeue (f, vec_len (data_pattern), data_buf);
if (compare_data
(data_buf, data_pattern, 0, vec_len (data_pattern), &j))
int test_n_bytes, deq_bytes, enq_bytes, n_deqs, n_enqs;
svm_fifo_chunk_t *c, *next, *prev;
u8 *test_data = 0, *data_buf = 0;
+ u32 old_tail, offset;
svm_fifo_t *f;
- u32 old_tail;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
fifo_size + 100, f->size);
SFIFO_TEST (c->start_byte == fifo_size, "start byte expected %u is %u",
fifo_size, c->start_byte);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Add with fifo wrapped
fifo_size + 100, f->size);
SFIFO_TEST (c->start_byte == fifo_size + 100, "start byte expected %u is "
" %u", fifo_size + 100, c->start_byte);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Unwrap fifo
fifo_size + 200, f->size);
SFIFO_TEST (c->start_byte == fifo_size + 100, "start byte expected %u is "
"%u", fifo_size + 100, c->start_byte);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Add N chunks
svm_fifo_add_chunk (f, c);
SFIFO_TEST (f->size == fifo_size + 200, "size expected %u is %u",
fifo_size + 200, f->size);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
prev = 0;
for (i = 0; i < 5; i++)
fifo_size + 200 + 10 * 100, f->size);
SFIFO_TEST (f->tail == old_tail, "new tail expected %u is %u", old_tail,
f->tail);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Enqueue/dequeue tests
vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
test_data[j]);
SFIFO_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Simple enqueue/deq and data validation (2)
vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
test_data[j]);
SFIFO_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ /*
+ * Simple enqueue and drop
+ */
+ for (i = 0; i <= n_enqs; i++)
+ {
+ rv = svm_fifo_enqueue (f, enq_bytes, test_data + i * enq_bytes);
+ if (rv < 0)
+ SFIFO_TEST (0, "failed to enqueue");
+ }
+
+ rv = svm_fifo_dequeue_drop (f, test_n_bytes / 2);
+ SFIFO_TEST (rv == test_n_bytes / 2, "drop should be equal");
+ SFIFO_TEST (svm_fifo_is_sane (f), "head chunk should be valid");
+ rv = svm_fifo_dequeue_drop (f, test_n_bytes / 2);
+ SFIFO_TEST (rv == test_n_bytes / 2, "drop should be equal");
+ SFIFO_TEST (svm_fifo_is_sane (f), "head chunk should be valid");
+ SFIFO_TEST (svm_fifo_max_dequeue (f) == 0, "should be empty");
+
+ /*
+ * Simple enqueue and drop all
+ */
+
+ /* Enqueue just enough data to make sure fifo is not full */
+ for (i = 0; i <= n_enqs / 2; i++)
+ {
+ rv = svm_fifo_enqueue (f, enq_bytes, test_data + i * enq_bytes);
+ if (rv < 0)
+ SFIFO_TEST (0, "failed to enqueue");
+ }
+
+ /* check drop all as well */
+ svm_fifo_dequeue_drop_all (f);
+ SFIFO_TEST (svm_fifo_is_sane (f), "head chunk should be valid");
+ SFIFO_TEST (svm_fifo_max_dequeue (f) == 0, "should be empty");
/*
* OOO enqueues/dequeues and data validation (1)
}
}
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
SFIFO_TEST (svm_fifo_max_dequeue (f) == 0, "max deq expected %u is %u",
0, svm_fifo_max_dequeue (f));
svm_fifo_enqueue (f, sizeof (u8), &test_data[0]);
memset (data_buf, 0, vec_len (data_buf));
+ offset = 0;
for (i = 0; i <= n_deqs; i++)
- svm_fifo_dequeue (f, deq_bytes, data_buf + i * deq_bytes);
+ {
+ rv = svm_fifo_peek (f, offset, deq_bytes, data_buf + i * deq_bytes);
+ if (rv < 0 || (rv != deq_bytes && i != n_deqs))
+ SFIFO_TEST (0, "unexpected peek %d", rv);
+ offset += rv;
+ }
+ svm_fifo_dequeue_drop (f, offset);
rv = compare_data (data_buf, test_data, 0, vec_len (test_data),
(u32 *) & j);
vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
test_data[j]);
SFIFO_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* OOO enqueues/dequeues and data validation (2)
goto cleanup;
}
}
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
svm_fifo_enqueue (f, enq_bytes, &test_data[0]);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
memset (data_buf, 0, vec_len (data_buf));
for (i = 0; i <= n_deqs; i++)
vlib_cli_output (vm, "[%d] dequeued %u expected %u", j, data_buf[j],
test_data[j]);
SFIFO_TEST ((rv == 0), "dequeued compared to original returned %d", rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Cleanup
SFIFO_TEST (f->size == 12 * chunk_size + 1, "size expected %u is %u",
12 * chunk_size + 1, f->size);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Check enqueue space to force size reduction */
(void) svm_fifo_max_enqueue (f);
" be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_SHRINK), "shrink flag should not be"
" set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
collected = c = svm_fifo_collect_chunks (f);
rv = chunk_list_len (c);
SFIFO_TEST (rv == 11, "expected %u chunks got %u", 11, rv);
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* Fifo wrap and multiple chunks used
SFIFO_TEST (f->size == 11 * chunk_size + 1, "size expected %u is %u",
11 * chunk_size + 1, f->size);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Check enqueue space to try size reduction. Should not work */
rv = svm_fifo_max_enqueue (f);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue byte-by-byte up to last byte on last chunk */
deq_bytes = f->size - f->size / 2 - 1;
if (rv < 0)
SFIFO_TEST (0, "dequeue returned");
}
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
rv = svm_fifo_max_enqueue (f);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue one more such that head goes beyond last chunk */
rv = svm_fifo_dequeue (f, 1, &data_buf[deq_bytes]);
" set");
SFIFO_TEST (f->flags & SVM_FIFO_F_COLLECT_CHUNKS, "collect flag should"
" be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue the rest of the data */
deq_bytes += 1;
SFIFO_TEST (rv == 8, "expected %u chunks got %u", 8, rv);
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/*
* OOO segment on chunk that should be removed
svm_fifo_enqueue (f, 200, test_data);
svm_fifo_enqueue_with_offset (f, 50, vec_len (test_data) - 250,
&test_data[250]);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Free space */
rv = svm_fifo_max_enqueue (f);
SFIFO_TEST (rv == vec_len (test_data) - 200, "free space expected %u is %u",
vec_len (test_data) - 200, rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Ask to reduce size */
rv = svm_fifo_reduce_size (f, 3.5 * chunk_size, 0);
SFIFO_TEST (f->size == 11 * chunk_size + 1, "size expected %u is %u",
11 * chunk_size + 1, f->size);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Try to force size reduction but it should fail */
rv = svm_fifo_max_enqueue (f);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue the in order data. This should shrink nitems */
rv = svm_fifo_dequeue (f, 200, data_buf);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Enqueue the missing 50 bytes. Fifo will become full */
rv = svm_fifo_enqueue (f, 50, &test_data[200]);
SFIFO_TEST (rv == vec_len (test_data) - 200, "free space expected %u is %u",
vec_len (test_data) - 200, rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
rv = svm_fifo_max_enqueue (f);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue a chunk and check nitems shrink but fifo still full */
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue enough to unwrap the fifo */
deq_bytes = f->size - f->size / 2 - 300;
" set");
SFIFO_TEST (f->flags & SVM_FIFO_F_COLLECT_CHUNKS, "collect flag should"
" be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Dequeue the rest */
svm_fifo_dequeue (f, test_n_bytes / 2, &data_buf[300 + deq_bytes]);
SFIFO_TEST (rv == 8, "expected %u chunks got %u", 8, rv);
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
chunk_list_splice (collected, c);
/*
- * Remove all chunks possible
+ * Remove all chunks possible (1)
+ *
+ * Tail and head are in first chunk that is not removed
*/
- svm_fifo_init_pointers (f, 601, 601);
+ svm_fifo_init_pointers (f, 600, 600);
rv = svm_fifo_reduce_size (f, 8 * chunk_size, 1);
SFIFO_TEST (rv == 7 * chunk_size, "actual len expected %u is %u",
7 * chunk_size, rv);
SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
rv = svm_fifo_max_enqueue (f);
SFIFO_TEST (rv == chunk_size, "free space expected %u is %u", chunk_size,
rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
/* Force head/tail to move to first chunk */
svm_fifo_enqueue (f, 1, test_data);
" set");
SFIFO_TEST (f->flags & SVM_FIFO_F_COLLECT_CHUNKS, "collect flag should"
" be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
c = svm_fifo_collect_chunks (f);
rv = chunk_list_len (c);
" not be set");
SFIFO_TEST (!(f->flags & SVM_FIFO_F_MULTI_CHUNK), "multi-chunk flag should"
" not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ /* re-add chunks for next test */
+ svm_fifo_add_chunk (f, c);
+
+ /*
+ * Remove all chunks possible (2)
+ *
+ * Tail and head are in the first chunk that should eventually be removed
+ */
+ svm_fifo_init_pointers (f, 601, 601);
+ rv = svm_fifo_reduce_size (f, 8 * chunk_size, 1);
+ SFIFO_TEST (rv == 7 * chunk_size, "actual len expected %u is %u",
+ 7 * chunk_size, rv);
+ SFIFO_TEST (f->size == 7 * chunk_size + 1, "size expected %u is %u",
+ 7 * chunk_size + 1, f->size);
+ SFIFO_TEST (f->nitems == 1 * chunk_size, "nitems expected %u is %u",
+ 1 * chunk_size, f->nitems);
+ SFIFO_TEST (f->flags & SVM_FIFO_F_SHRINK, "shrink flag should be set");
+ SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
+ " not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ rv = svm_fifo_max_enqueue (f);
+ SFIFO_TEST (rv == chunk_size, "free space expected %u is %u", chunk_size,
+ rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ /* Force head/tail to move to first chunk */
+ svm_fifo_enqueue (f, chunk_size, test_data);
+ svm_fifo_dequeue (f, chunk_size, data_buf);
+ rv = svm_fifo_max_enqueue (f);
+
+ SFIFO_TEST (rv == chunk_size, "free space expected %u is %u", chunk_size,
+ rv);
+ SFIFO_TEST (f->size == chunk_size + 1, "size expected %u is %u",
+ chunk_size + 1, f->size);
+ SFIFO_TEST (!(f->flags & SVM_FIFO_F_SHRINK), "shrink flag should not be"
+ " set");
+ SFIFO_TEST (f->flags & SVM_FIFO_F_COLLECT_CHUNKS, "collect flag should"
+ " be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ c = svm_fifo_collect_chunks (f);
+ rv = chunk_list_len (c);
+ SFIFO_TEST (rv == 7, "expected %u chunks got %u", 7, rv);
+ SFIFO_TEST (!(f->flags & SVM_FIFO_F_COLLECT_CHUNKS), "collect flag should"
+ " not be set");
+ SFIFO_TEST (!(f->flags & SVM_FIFO_F_MULTI_CHUNK), "multi-chunk flag should"
+ " not be set");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
chunk_list_splice (collected, c);
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)
{
a->segment_size = 256 << 10;
rv = fifo_segment_create (sm, a);
-
SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv);
fs = fifo_segment_get_segment (sm, a->new_segment_indices[0]);
static int
sfifo_test_fifo_segment_fifo_grow (int verbose)
{
+ int rv, fifo_size = 4096, n_chunks, n_batch;
fifo_segment_main_t *sm = &segment_main;
fifo_segment_create_args_t _a, *a = &_a;
- int rv, fifo_size = 4096, n_chunks;
+ u32 n_free_chunk_bytes;
fifo_segment_t *fs;
svm_fifo_t *f;
clib_memset (a, 0, sizeof (*a));
a->segment_name = "fifo-test1";
+ /* size chosen to be able to force multi chunk allocation lower */
a->segment_size = 256 << 10;
+ /* fifo allocation allocates chunks in batch */
+ n_batch = FIFO_SEGMENT_ALLOC_BATCH_SIZE;
+
rv = fifo_segment_create (sm, a);
SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv);
SFIFO_TEST (f != 0, "svm_fifo_segment_alloc_fifo");
+ n_chunks = fifo_segment_num_free_chunks (fs, fifo_size);
+ SFIFO_TEST (n_chunks == n_batch - 1, "free 2^10B chunks "
+ "should be %u is %u", n_batch - 1, n_chunks);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == (n_batch - 1) * fifo_size, "free chunk bytes %u "
+ "expected %u", rv, (n_batch - 1) * fifo_size);
+
+ /* Grow by preallocated fifo_size chunk */
fifo_segment_grow_fifo (fs, f, fifo_size);
SFIFO_TEST (f->size == 2 * fifo_size, "fifo size should be %u is %u",
2 * fifo_size, f->size);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ n_chunks = fifo_segment_num_free_chunks (fs, fifo_size);
+ SFIFO_TEST (n_chunks == n_batch - 2, "free 2^10B chunks "
+ "should be %u is %u", n_batch - 2, n_chunks);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == (n_batch - 2) * fifo_size, "free chunk bytes %u "
+ "expected %u", rv, (n_batch - 2) * fifo_size);
+
+ /* Grow by a size not preallocated but first make sure there's space */
+ rv = fifo_segment_free_bytes (fs);
+ SFIFO_TEST (rv > 16 * fifo_size, "free bytes %u more than %u", rv,
+ 16 * fifo_size);
fifo_segment_grow_fifo (fs, f, 16 * fifo_size);
SFIFO_TEST (f->size == 18 * fifo_size, "fifo size should be %u is %u",
18 * fifo_size, f->size);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == (n_batch - 2) * fifo_size, "free chunk bytes %u "
+ "expected %u", rv, (n_batch - 2) * fifo_size);
+
/*
* Free and test free list size
*/
fifo_segment_free_fifo (fs, f);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == (16 + n_batch) * fifo_size, "free chunk bytes expected %u"
+ " is %u", (16 + n_batch) * fifo_size, rv);
n_chunks = fifo_segment_num_free_chunks (fs, fifo_size);
- SFIFO_TEST (n_chunks == 1, "free 2^10B chunks should be %u is %u", 1,
- n_chunks);
+ SFIFO_TEST (n_chunks == n_batch, "free 2^10B chunks "
+ "should be %u is %u", n_batch, n_chunks);
n_chunks = fifo_segment_num_free_chunks (fs, 16 * fifo_size);
SFIFO_TEST (n_chunks == 1, "free 2^14B chunks should be %u is %u", 1,
n_chunks);
n_chunks = fifo_segment_num_free_chunks (fs, ~0);
- SFIFO_TEST (n_chunks == 2, "free chunks should be %u is %u", 2, n_chunks);
+ SFIFO_TEST (n_chunks == 1 + n_batch, "free chunks should be %u is %u",
+ 1 + n_batch, n_chunks);
/*
* Realloc fifo
fifo_segment_grow_fifo (fs, f, fifo_size);
n_chunks = fifo_segment_num_free_chunks (fs, fifo_size);
- SFIFO_TEST (n_chunks == 0, "free 2^10B chunks should be %u is %u", 0,
- n_chunks);
+ SFIFO_TEST (n_chunks == n_batch - 2, "free 2^10B chunks should be %u is %u",
+ n_batch - 2, n_chunks);
fifo_segment_grow_fifo (fs, f, 16 * fifo_size);
+ n_chunks = fifo_segment_num_free_chunks (fs, 16 * fifo_size);
SFIFO_TEST (n_chunks == 0, "free 2^14B chunks should be %u is %u", 0,
n_chunks);
n_chunks = fifo_segment_num_free_chunks (fs, ~0);
- SFIFO_TEST (n_chunks == 0, "free chunks should be %u is %u", 0, n_chunks);
+ SFIFO_TEST (n_chunks == n_batch - 2, "free chunks should be %u is %u",
+ n_batch - 2, n_chunks);
/*
* Free again
*/
fifo_segment_free_fifo (fs, f);
n_chunks = fifo_segment_num_free_chunks (fs, ~0);
- SFIFO_TEST (n_chunks == 2, "free chunks should be %u is %u", 2, n_chunks);
+ SFIFO_TEST (n_chunks == 1 + n_batch, "free chunks should be %u is %u",
+ 1 + n_batch, n_chunks);
+
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == (16 + n_batch) * fifo_size, "free chunk bytes expected %u"
+ " is %u", (16 + n_batch) * fifo_size, rv);
+
+ n_free_chunk_bytes = rv;
+
+ /*
+ * Allocate non power of 2 fifo/chunk and check that free chunk bytes
+ * is correctly updated
+ */
+
+ f = fifo_segment_alloc_fifo (fs, 16 * fifo_size - 1, FIFO_SEGMENT_RX_FIFO);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+
+ SFIFO_TEST (n_free_chunk_bytes - 16 * fifo_size == rv, "free chunk bytes "
+ "expected %u is %u", n_free_chunk_bytes - 16 * fifo_size, rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ fifo_segment_free_fifo (fs, f);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+
+ SFIFO_TEST (n_free_chunk_bytes == rv, "free chunk bytes expected %u is %u",
+ n_free_chunk_bytes, rv);
+
+ /*
+ * Force multi chunk fifo allocation
+ */
+
+ /* Check that we can force multi chunk allocation. Note that fifo size
+ * rounded up to power of 2, i.e., 17 becomes 32 */
+ rv = fifo_segment_free_bytes (fs);
+ SFIFO_TEST (rv < 32 * fifo_size, "free bytes %u less than %u", rv,
+ 32 * fifo_size);
+
+ f = fifo_segment_alloc_fifo (fs, 17 * fifo_size, FIFO_SEGMENT_RX_FIFO);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ rv = fifo_segment_fl_chunk_bytes (fs);
+
+ /* Make sure that the non-power of two chunk freed above is correctly
+ * accounted for in the chunk free bytes reduction due to chunk allocation
+ * for the fifo, i.e., it's rounded up by 1 */
+ SFIFO_TEST (n_free_chunk_bytes - 17 * fifo_size == rv, "free chunk bytes "
+ "expected %u is %u", n_free_chunk_bytes - 17 * fifo_size, rv);
+
+ fifo_segment_free_fifo (fs, f);
+
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (n_free_chunk_bytes == rv, "free chunk bytes expected %u is %u",
+ n_free_chunk_bytes, rv);
+
+ /*
+ * Allocate fifo that has all chunks
+ */
+ f = fifo_segment_alloc_fifo (fs, n_free_chunk_bytes, FIFO_SEGMENT_RX_FIFO);
+ SFIFO_TEST (f != 0, "allocation should work");
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ fifo_segment_free_fifo (fs, f);
+
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (n_free_chunk_bytes == rv, "free chunk bytes expected %u is %u",
+ n_free_chunk_bytes, rv);
+
+ /*
+ * Try to allocate more than space available
+ */
+
+ f = fifo_segment_alloc_fifo (fs, n_free_chunk_bytes + fifo_size,
+ FIFO_SEGMENT_RX_FIFO);
+ SFIFO_TEST (f == 0, "allocation should fail");
+
+ /*
+ * Allocate fifo and try to grow beyond available space
+ */
+ f = fifo_segment_alloc_fifo (fs, fifo_size, FIFO_SEGMENT_RX_FIFO);
+ rv = fifo_segment_grow_fifo (fs, f, n_free_chunk_bytes);
+
+ SFIFO_TEST (rv == -1, "grow should fail");
+
+ fifo_segment_free_fifo (fs, f);
+
+ /*
+ * Cleanup
+ */
+ fifo_segment_delete (sm, fs);
+ vec_free (a->new_segment_indices);
+ return 0;
+}
+
+static int
+sfifo_test_fifo_segment_fifo_shrink (int verbose)
+{
+ int i, rv, chunk_size = 4096, n_chunks, n_free;
+ fifo_segment_main_t *sm = &segment_main;
+ fifo_segment_create_args_t _a, *a = &_a;
+ fifo_segment_t *fs;
+ svm_fifo_t *f;
+
+ clib_memset (a, 0, sizeof (*a));
+ a->segment_name = "fifo-test1";
+ a->segment_size = 256 << 10;
+
+ rv = fifo_segment_create (sm, a);
+
+ SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv);
+
+ /*
+ * Alloc and grow fifo
+ */
+ fs = fifo_segment_get_segment (sm, a->new_segment_indices[0]);
+ f = fifo_segment_alloc_fifo (fs, chunk_size, FIFO_SEGMENT_RX_FIFO);
+ n_free = FIFO_SEGMENT_ALLOC_BATCH_SIZE - 1;
+
+ SFIFO_TEST (f != 0, "svm_fifo_segment_alloc_fifo");
+
+ for (i = 0; i < 9; i++)
+ {
+ fifo_segment_grow_fifo (fs, f, chunk_size);
+ n_free -= 1;
+ if (f->size != (i + 2) * chunk_size)
+ SFIFO_TEST (0, "fifo size should be %u is %u",
+ (i + 2) * chunk_size, f->size);
+ }
+
+ rv = svm_fifo_reduce_size (f, 3.5 * chunk_size, 1 /* is producer */ );
+ SFIFO_TEST (rv == 3 * chunk_size, "len expected %u is %u", 3 * chunk_size,
+ rv);
+
+ n_chunks = fifo_segment_num_free_chunks (fs, chunk_size);
+ SFIFO_TEST (n_chunks == n_free, "free chunks should be %u is %u", n_free,
+ n_chunks);
+
+ fifo_segment_collect_fifo_chunks (fs, f);
+
+ n_free += 3;
+ n_chunks = fifo_segment_num_free_chunks (fs, chunk_size);
+ SFIFO_TEST (n_chunks == n_free, "free chunks should be %u is %u", n_free,
+ n_chunks);
+
+ rv = svm_fifo_reduce_size (f, 7 * chunk_size - 1, 1 /* is producer */ );
+ SFIFO_TEST (rv == 6 * chunk_size, "len expected %u is %u", 6 * chunk_size,
+ rv);
+
+ fifo_segment_collect_fifo_chunks (fs, f);
+
+ n_free += 6;
+ n_chunks = fifo_segment_num_free_chunks (fs, chunk_size);
+ SFIFO_TEST (n_chunks == n_free, "free chunks should be %u is %u", n_free,
+ n_chunks);
+ /*
+ * Free
+ */
+ fifo_segment_free_fifo (fs, f);
+ n_free += 1;
+ n_chunks = fifo_segment_num_free_chunks (fs, ~0);
+ SFIFO_TEST (n_chunks == n_free, "free chunks should be %u is %u", n_free,
+ n_chunks);
/*
* Cleanup
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;
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);
return 0;
}
+static int
+sfifo_test_fifo_segment_prealloc (int verbose)
+{
+ fifo_segment_create_args_t _a, *a = &_a;
+ fifo_segment_main_t *sm = &segment_main;
+ u32 max_pairs, pairs_req, free_space, pair_mem;
+ svm_fifo_t *f, *old;
+ fifo_segment_t *fs;
+ int rv, alloc;
+
+ clib_memset (a, 0, sizeof (*a));
+
+ a->segment_name = "fifo-test-prealloc";
+ a->segment_size = 256 << 10;
+ a->segment_type = SSVM_SEGMENT_MEMFD;
+
+ rv = fifo_segment_create (sm, a);
+ SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv);
+ fs = fifo_segment_get_segment (sm, a->new_segment_indices[0]);
+
+ /*
+ * Prealloc chunks and headers
+ */
+ 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, 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);
+ rv = fifo_segment_free_bytes (fs);
+ free_space -= (sizeof (svm_fifo_chunk_t) + 4096) * 50;
+ SFIFO_TEST (rv == free_space, "free space expected %u is %u", free_space,
+ rv);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == 4096 * 50, "chunk free space expected %u is %u",
+ 4096 * 50, rv);
+
+ 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);
+ rv = fifo_segment_free_bytes (fs);
+ free_space -= sizeof (svm_fifo_t) * 50;
+ SFIFO_TEST (rv == free_space, "free space expected %u is %u", free_space,
+ rv);
+
+ fifo_segment_update_free_bytes (fs);
+ rv = fifo_segment_free_bytes (fs);
+ SFIFO_TEST (clib_abs (rv - (int) free_space) < 512,
+ "free space expected %u is %u", free_space, rv);
+
+ f = fifo_segment_alloc_fifo (fs, 200 << 10, FIFO_SEGMENT_RX_FIFO);
+ SFIFO_TEST (f != 0, "fifo allocated");
+ rv = fifo_segment_num_free_chunks (fs, 4096);
+ SFIFO_TEST (rv == 0, "prealloc chunks expected %u is %u", 0, rv);
+ rv = fifo_segment_fl_chunk_bytes (fs);
+ SFIFO_TEST (rv == 0, "chunk free space expected %u is %u", 0, rv);
+ SFIFO_TEST (svm_fifo_is_sane (f), "fifo should be sane");
+
+ /*
+ * Multiple preallocs that consume the remaining space
+ */
+ fifo_segment_update_free_bytes (fs);
+ free_space = fifo_segment_free_bytes (fs);
+ pair_mem = 2 * (4096 + sizeof (*f) + sizeof (svm_fifo_chunk_t));
+ max_pairs = pairs_req = (free_space / pair_mem) - 1;
+ fifo_segment_preallocate_fifo_pairs (fs, 4096, 4096, &pairs_req);
+ SFIFO_TEST (pairs_req == 0, "prealloc pairs should work req %u", max_pairs);
+ rv = fifo_segment_num_free_chunks (fs, 4096);
+ SFIFO_TEST (rv == max_pairs * 2, "prealloc chunks expected %u is %u",
+ max_pairs * 2, rv);
+
+ fifo_segment_update_free_bytes (fs);
+ rv = fifo_segment_free_bytes (fs);
+ SFIFO_TEST (rv < 2 * pair_mem, "free bytes %u less than %u", rv,
+ 2 * pair_mem);
+
+ /* 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, 0, 4096, 1))
+ alloc++;
+ SFIFO_TEST (alloc, "chunk prealloc should work %u", alloc);
+ rv = fifo_segment_num_free_chunks (fs, 4096);
+ SFIFO_TEST (rv == max_pairs * 2 + alloc, "prealloc chunks expected %u "
+ "is %u", max_pairs * 2 + alloc, rv);
+
+ rv = fifo_segment_free_bytes (fs);
+ SFIFO_TEST (rv < pair_mem, "free bytes expected less than %u is %u",
+ pair_mem, rv);
+
+ /*
+ * Test negative prealloc cases
+ */
+ pairs_req = 1;
+ fifo_segment_preallocate_fifo_pairs (fs, 4096, 4096, &pairs_req);
+ SFIFO_TEST (pairs_req == 1, "prealloc pairs should not work");
+
+ old = f;
+ 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, 0, 4096, 50);
+ SFIFO_TEST (rv == -1, "chunk prealloc should fail");
+
+ rv = fifo_segment_prealloc_fifo_hdrs (fs, 0, 50);
+ SFIFO_TEST (rv == -1, "fifo hdr prealloc should fail");
+
+ /*
+ * Cleanup
+ */
+ fifo_segment_free_fifo (fs, old);
+ close (fs->ssvm.fd);
+ fifo_segment_delete (sm, fs);
+ return 0;
+}
+
static int
sfifo_test_fifo_segment (vlib_main_t * vm, unformat_input_t * input)
{
int rv, verbose = 0;
+ fifo_segment_main_init (&segment_main, HIGH_SEGMENT_BASEVA, 5);
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "verbose"))
if ((rv = sfifo_test_fifo_segment_fifo_grow (verbose)))
return -1;
}
+ else if (unformat (input, "shrink fifo"))
+ {
+ if ((rv = sfifo_test_fifo_segment_fifo_shrink (verbose)))
+ return -1;
+ }
+ else if (unformat (input, "prealloc"))
+ {
+ if ((rv = sfifo_test_fifo_segment_prealloc (verbose)))
+ return -1;
+ }
else if (unformat (input, "all"))
{
if ((rv = sfifo_test_fifo_segment_hello_world (verbose)))
return -1;
if ((rv = sfifo_test_fifo_segment_fifo_grow (verbose)))
return -1;
+ if ((rv = sfifo_test_fifo_segment_fifo_shrink (verbose)))
+ return -1;
+ if ((rv = sfifo_test_fifo_segment_prealloc (verbose)))
+ return -1;
/* Pretty slow so avoid running it always
if ((rv = sfifo_test_fifo_segment_master_slave (verbose)))
return -1;
int res = 0;
char *str;
+
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "fifo1"))
Code Review / vpp.git / blobdiff