diff options
Diffstat (limited to 'src/plugins')
| -rw-r--r-- | src/plugins/unittest/svm_fifo_test.c | 129 |
1 files changed, 112 insertions, 17 deletions
diff --git a/src/plugins/unittest/svm_fifo_test.c b/src/plugins/unittest/svm_fifo_test.c index acf862a1790..a8f83faa586 100644 --- a/src/plugins/unittest/svm_fifo_test.c +++ b/src/plugins/unittest/svm_fifo_test.c @@ -1944,15 +1944,20 @@ sfifo_test_fifo_segment_hello_world (int verbose) static int sfifo_test_fifo_segment_fifo_grow (int verbose) { - int rv, fifo_size = 4096, n_chunks, n_free; + int rv, fifo_size = 4096, n_chunks, n_batch; fifo_segment_main_t *sm = &segment_main; fifo_segment_create_args_t _a, *a = &_a; + u32 n_free_chunk_bytes; fifo_segment_t *fs; svm_fifo_t *f; clib_memset (a, 0, sizeof (*a)); a->segment_name = "fifo-test1"; - a->segment_size = 256 << 10; + /* size chosen to be able to force multi chunk allocation lower */ + a->segment_size = 208 << 10; + + /* fifo allocation allocates chunks in batch */ + n_batch = FIFO_SEGMENT_ALLOC_BATCH_SIZE; rv = fifo_segment_create (sm, a); @@ -1966,31 +1971,49 @@ sfifo_test_fifo_segment_fifo_grow (int verbose) 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); + 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); + 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); + 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); - /* fifo allocation allocates chunks in batch */ - n_free = FIFO_SEGMENT_ALLOC_BATCH_SIZE; - + 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 == n_free, "free 2^10B chunks " - "should be %u is %u", n_free, 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 == 1 + n_free, "free chunks should be %u is %u", - 1 + n_free, n_chunks); + SFIFO_TEST (n_chunks == 1 + n_batch, "free chunks should be %u is %u", + 1 + n_batch, n_chunks); /* * Realloc fifo @@ -1999,24 +2022,96 @@ sfifo_test_fifo_segment_fifo_grow (int verbose) fifo_segment_grow_fifo (fs, f, fifo_size); n_chunks = fifo_segment_num_free_chunks (fs, fifo_size); - SFIFO_TEST (n_chunks == n_free - 2, "free 2^10B chunks should be %u is %u", - n_free - 2, 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 == n_free - 2, "free chunks should be %u is %u", - n_free - 2, 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 == 1 + n_free, "free chunks should be %u is %u", - 1 + n_free, 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); + + 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 + */ + + f = fifo_segment_alloc_fifo (fs, 17 * fifo_size, FIFO_SEGMENT_RX_FIFO); + 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"); + + 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 @@ -2307,7 +2402,7 @@ sfifo_test_fifo_segment_prealloc (int verbose) 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_chunk_prealloc_bytes (fs); + rv = fifo_segment_fl_chunk_bytes (fs); SFIFO_TEST (rv == 4096 * 50, "chunk free space expected %u is %u", 4096 * 50, rv); @@ -2329,7 +2424,7 @@ sfifo_test_fifo_segment_prealloc (int verbose) 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_chunk_prealloc_bytes (fs); + rv = fifo_segment_fl_chunk_bytes (fs); SFIFO_TEST (rv == 0, "chunk free space expected %u is %u", 0, rv); /* |