diff options
Diffstat (limited to 'src/plugins/unittest/segment_manager_test.c')
| -rw-r--r-- | src/plugins/unittest/segment_manager_test.c | 757 |
1 files changed, 757 insertions, 0 deletions
diff --git a/src/plugins/unittest/segment_manager_test.c b/src/plugins/unittest/segment_manager_test.c new file mode 100644 index 00000000000..8f362f40cb6 --- /dev/null +++ b/src/plugins/unittest/segment_manager_test.c @@ -0,0 +1,757 @@ +#include <vnet/vnet.h> +#include <vnet/plugin/plugin.h> +#include <vpp/app/version.h> +#include <vnet/session/session.h> +#include <vnet/session/segment_manager.h> +#include <vnet/session/application.h> + +#define SEG_MGR_TEST_I(_cond, _comment, _args...) \ +({ \ + int _evald = (_cond); \ + if (!(_evald)) { \ + fformat(stderr, "FAIL:%d: " _comment "\n", \ + __LINE__, ##_args); \ + } else { \ + fformat(stderr, "PASS:%d: " _comment "\n", \ + __LINE__, ##_args); \ + } \ + _evald; \ +}) + +#define SEG_MGR_TEST(_cond, _comment, _args...) \ +{ \ + if (!SEG_MGR_TEST_I(_cond, _comment, ##_args)) { \ + return 1; \ + } \ +} + +#define ST_DBG(_comment, _args...) \ + fformat(stderr, _comment "\n", ##_args); \ + +#define SEGMENT_MANAGER_GET_INDEX_FROM_HANDLE(x) (x >> 32) + +/* dummy callback functions */ +static void +dummy_session_reset_callback (session_t * s) +{ + clib_warning ("called..."); +} + +static int +dummy_session_connected_callback (u32 app_index, u32 api_context, + session_t * s, u8 is_fail) +{ + clib_warning ("called..."); + return 0; +} + +static int +dummy_add_segment_callback (u32 client_index, u64 segment_handle) +{ + clib_warning ("called..."); + return 0; +} + +static int +dummy_del_segment_callback (u32 client_index, u64 segment_handle) +{ + clib_warning ("called..."); + return 0; +} + +static void +dummy_session_disconnect_callback (session_t * s) +{ + clib_warning ("called..."); +} + +static int +dummy_session_accept_callback (session_t * s) +{ + clib_warning ("called..."); + return 0; +} + +static int +dummy_server_rx_callback (session_t * s) +{ + clib_warning ("called..."); + return -1; +} + +/* *INDENT-OFF* */ +static session_cb_vft_t dummy_session_cbs = { + .session_reset_callback = dummy_session_reset_callback, + .session_connected_callback = dummy_session_connected_callback, + .session_accept_callback = dummy_session_accept_callback, + .session_disconnect_callback = dummy_session_disconnect_callback, + .builtin_app_rx_callback = dummy_server_rx_callback, + .add_segment_callback = dummy_add_segment_callback, + .del_segment_callback = dummy_del_segment_callback, +}; +/* *INDENT-ON* */ + +static char *states_str[] = { +#define _(sym,str) str, + foreach_segment_mem_status +#undef _ +}; + +static u32 size_4KB = 4 << 10; +static u32 size_8KB = 8 << 10; +static u32 size_12KB = 12 << 10; +static u32 size_16KB = 16 << 10; +static u32 size_20KB = 20 << 10; +static u32 size_32KB = 32 << 10; +static u32 size_52KB = 52 << 10; +static u32 size_64KB = 64 << 10; +static u32 size_128KB = 128 << 10; +static u32 size_1MB = 1 << 20; +static u32 size_2MB = 2 << 20; + + +static int +segment_manager_test_pressure_1 (vlib_main_t * vm, unformat_input_t * input) +{ + int rv; + segment_manager_t *sm; + fifo_segment_t *fs0, *fs; + svm_fifo_t *rx_fifo, *tx_fifo; + uword app_seg_size = size_2MB; + u32 fifo_size = size_128KB; + u64 options[APP_OPTIONS_N_OPTIONS]; + u8 data[size_128KB]; + + memset (&options, 0, sizeof (options)); + + vnet_app_attach_args_t attach_args = { + .api_client_index = ~0, + .options = options, + .namespace_id = 0, + .session_cb_vft = &dummy_session_cbs, + .name = format (0, "segment_manager_test_pressure_1"), + }; + + attach_args.options[APP_OPTIONS_SEGMENT_SIZE] = app_seg_size; + attach_args.options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; + attach_args.options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; + attach_args.options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; + rv = vnet_application_attach (&attach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_attach %d", rv); + + sm = + segment_manager_get (SEGMENT_MANAGER_GET_INDEX_FROM_HANDLE + (attach_args.segment_handle)); + SEG_MGR_TEST ((sm != 0), "segment_manager_get %p", sm); + + /* initial status : (0 / 2MB) */ + fs0 = segment_manager_get_segment (sm, 0); + rv = fifo_segment_get_mem_status (fs0); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + + /* allocate a fifo : 128KB x2 */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo, &tx_fifo); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + + svm_fifo_set_size (rx_fifo, size_1MB); + svm_fifo_set_size (tx_fifo, size_1MB); + + fs = segment_manager_get_segment (sm, rx_fifo->segment_index); + SEG_MGR_TEST ((fs == fs0), "fs %p", fs); + + /* fill fifos (but not add chunks) */ + svm_fifo_enqueue (rx_fifo, fifo_size - 1, data); + svm_fifo_enqueue (tx_fifo, fifo_size - 1, data); + + /* 256KB+ / 2048KB+ => ~12% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* grow fifos */ + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + + /* 8 chunks : 49% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* grow fifos */ + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + + /* 10 chunks : 61% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_LOW_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* grow fifos */ + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + + /* 14 chunks : 85% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_HIGH_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + + /* shrink fifos */ + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + + /* 10 chunks : 61% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_LOW_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + + /* grow fifos */ + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (rx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + svm_fifo_enqueue (tx_fifo, fifo_size, data); + + /* 14 chunks : 85% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_HIGH_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + + + /* 10 chunks : 61% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_LOW_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* shrink fifos */ + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + svm_fifo_dequeue_drop (tx_fifo, fifo_size); + + /* 2 chunks : 12% */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + + vnet_app_detach_args_t detach_args = { + .app_index = attach_args.app_index, + .api_client_index = ~0, + }; + rv = vnet_application_detach (&detach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_detach %d", rv); + + return 0; +} + +static int +segment_manager_test_pressure_2 (vlib_main_t * vm, unformat_input_t * input) +{ + int rv, i; + segment_manager_t *sm; + fifo_segment_t *fs0, *fs; + svm_fifo_t *rx_fifo, *tx_fifo; + uword app_seg_size = size_2MB; + u32 fifo_size = size_4KB; + u64 options[APP_OPTIONS_N_OPTIONS]; + u8 data[size_4KB]; + + memset (&options, 0, sizeof (options)); + + vnet_app_attach_args_t attach_args = { + .api_client_index = ~0, + .options = options, + .namespace_id = 0, + .session_cb_vft = &dummy_session_cbs, + .name = format (0, "segment_manager_test_pressure_1"), + }; + + attach_args.options[APP_OPTIONS_SEGMENT_SIZE] = app_seg_size; + attach_args.options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; + attach_args.options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; + attach_args.options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; + rv = vnet_application_attach (&attach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_attach %d", rv); + + sm = + segment_manager_get (SEGMENT_MANAGER_GET_INDEX_FROM_HANDLE + (attach_args.segment_handle)); + SEG_MGR_TEST ((sm != 0), "segment_manager_get %p", sm); + + /* initial status : (0 / 2MB) */ + fs0 = segment_manager_get_segment (sm, 0); + fifo_segment_update_free_bytes (fs0); + rv = fifo_segment_get_mem_status (fs0); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + + /* allocate fifos : 4KB x2 */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo, &tx_fifo); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + + svm_fifo_set_size (rx_fifo, size_2MB); + svm_fifo_set_size (tx_fifo, size_2MB); + + /* fill fifos (but not add chunks) */ + svm_fifo_enqueue (rx_fifo, fifo_size - 1, data); + svm_fifo_enqueue (tx_fifo, fifo_size - 1, data); + + fs = segment_manager_get_segment (sm, rx_fifo->segment_index); + + /* grow fifos */ + for (i = 0; i < 509; ++i) + { + svm_fifo_enqueue (rx_fifo, fifo_size, data); + } + + /* 510 chunks : 100% of 2MB */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_HIGH_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* this fifo growth is expected to fail */ + rv = svm_fifo_enqueue (rx_fifo, fifo_size, data); + SEG_MGR_TEST ((rv == SVM_FIFO_EGROW), "svm_fifo_enqueue %d", rv); + + /* then, no-memory is detected */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_MEMORY), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* shrink fifos */ + for (i = 0; i < 20; ++i) + { + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + } + + /* 489 chunks : 96%, it is high-pressure level + * but the reached-mem-limit record is not reset + * so the no-memory state lasts. + */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_MEMORY), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* shrink fifos */ + for (i = 0; i < 133; ++i) + { + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + } + + /* 356 chunks : 70% of 2MB */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_LOW_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* shrink fifos */ + for (i = 0; i < 354; ++i) + { + svm_fifo_dequeue_drop (rx_fifo, fifo_size); + } + + /* 2 chunks : 3% of 2MB */ + fifo_segment_update_free_bytes (fs); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + + vnet_app_detach_args_t detach_args = { + .app_index = attach_args.app_index, + .api_client_index = ~0, + }; + rv = vnet_application_detach (&detach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_detach %d", rv); + + return 0; +} + +static int +segment_manager_test_fifo_balanced_alloc (vlib_main_t * vm, + unformat_input_t * input) +{ + int rv, i, fs_index; + segment_manager_t *sm; + fifo_segment_t *fs[4]; + svm_fifo_t *rx_fifo[4], *tx_fifo[4]; + uword app_seg_size = size_2MB; + u32 fifo_size = size_4KB; + u64 options[APP_OPTIONS_N_OPTIONS]; + u8 data[size_4KB]; + + memset (&options, 0, sizeof (options)); + + vnet_app_attach_args_t attach_args = { + .api_client_index = ~0, + .options = options, + .namespace_id = 0, + .session_cb_vft = &dummy_session_cbs, + .name = format (0, "segment_manager_test_pressure_1"), + }; + + attach_args.options[APP_OPTIONS_SEGMENT_SIZE] = app_seg_size; + attach_args.options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; + attach_args.options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; + attach_args.options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; + rv = vnet_application_attach (&attach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_attach %d", rv); + + sm = + segment_manager_get (SEGMENT_MANAGER_GET_INDEX_FROM_HANDLE + (attach_args.segment_handle)); + SEG_MGR_TEST ((sm != 0), "segment_manager_get %p", sm); + + /* initial status : (0 / 2MB) */ + fs[0] = segment_manager_get_segment (sm, 0); + rv = fifo_segment_get_mem_status (fs[0]); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* allocate fifos : 4KB x2 */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo[0], &tx_fifo[0]); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + SEG_MGR_TEST ((rx_fifo[0]->segment_index == 0), + "segment_index %d", rx_fifo[0]->segment_index); + SEG_MGR_TEST ((tx_fifo[0]->segment_index == 0), + "segment_index %d", tx_fifo[0]->segment_index); + + /* grow fifos */ + svm_fifo_set_size (rx_fifo[0], size_1MB); + for (i = 0; i < 200; ++i) + { + svm_fifo_enqueue (rx_fifo[0], fifo_size, data); + } + + /* add another 2MB segment */ + fs_index = segment_manager_add_segment (sm, size_2MB); + SEG_MGR_TEST ((fs_index == 1), "fs_index %d", fs_index); + + /* allocate fifos : 4KB x2 + * expected to be allocated on the newer segment, + * because the usage of the first segment is high. + */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo[1], &tx_fifo[1]); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + SEG_MGR_TEST ((rx_fifo[1]->segment_index == 1), + "segment_index %d", rx_fifo[1]->segment_index); + SEG_MGR_TEST ((tx_fifo[1]->segment_index == 1), + "segment_index %d", tx_fifo[1]->segment_index); + + /* allocate fifos : 4KB x2 + * expected to be allocated on the newer segment. + */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo[2], &tx_fifo[2]); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + SEG_MGR_TEST ((rx_fifo[2]->segment_index == 1), + "segment_index %d", rx_fifo[2]->segment_index); + SEG_MGR_TEST ((tx_fifo[2]->segment_index == 1), + "segment_index %d", tx_fifo[2]->segment_index); + + /* grow fifos, so the usage of the secong segment becomes + * higher than the first one. + */ + svm_fifo_set_size (rx_fifo[1], size_1MB); + for (i = 0; i < 400; ++i) + { + svm_fifo_enqueue (rx_fifo[1], fifo_size, data); + } + + /* allocate fifos : 4KB x2 + * expected to be allocated on the first segment. + */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo[3], &tx_fifo[3]); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + SEG_MGR_TEST ((rx_fifo[3]->segment_index == 0), + "segment_index %d", rx_fifo[3]->segment_index); + SEG_MGR_TEST ((tx_fifo[3]->segment_index == 0), + "segment_index %d", tx_fifo[3]->segment_index); + + + + vnet_app_detach_args_t detach_args = { + .app_index = attach_args.app_index, + .api_client_index = ~0, + }; + rv = vnet_application_detach (&detach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_detach %d", rv); + + return 0; +} + +static int +segment_manager_test_fifo_ops (vlib_main_t * vm, unformat_input_t * input) +{ + int rv, i; + segment_manager_t *sm; + fifo_segment_t *fs; + svm_fifo_t *rx_fifo, *tx_fifo; + uword app_seg_size = size_2MB, most_grown = 0; + u32 fifo_size = size_4KB; + u32 max_dequeue = 0; + u64 options[APP_OPTIONS_N_OPTIONS]; + u8 data[size_128KB]; + + memset (&options, 0, sizeof (options)); + + vnet_app_attach_args_t attach_args = { + .api_client_index = ~0, + .options = options, + .namespace_id = 0, + .session_cb_vft = &dummy_session_cbs, + .name = format (0, "segment_manager_test_pressure_1"), + }; + + attach_args.options[APP_OPTIONS_SEGMENT_SIZE] = app_seg_size; + attach_args.options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; + attach_args.options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; + attach_args.options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; + rv = vnet_application_attach (&attach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_attach %d", rv); + + sm = + segment_manager_get (SEGMENT_MANAGER_GET_INDEX_FROM_HANDLE + (attach_args.segment_handle)); + SEG_MGR_TEST ((sm != 0), "segment_manager_get %p", sm); + + /* initial status : (0 / 2MB) */ + fs = segment_manager_get_segment (sm, 0); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* allocate fifos : 4KB x2 */ + rv = segment_manager_alloc_session_fifos (sm, + vlib_get_thread_index (), + &rx_fifo, &tx_fifo); + SEG_MGR_TEST ((rv == 0), "segment_manager_alloc_session_fifos %d", rv); + + /* check the initial fifo size : 4KB */ + rv = svm_fifo_size (rx_fifo); + SEG_MGR_TEST ((rv == size_4KB), "svm_fifo_size %d", rv); + + /* fill 4KB */ + rv = svm_fifo_enqueue (rx_fifo, size_4KB, data); + SEG_MGR_TEST ((rv == size_4KB), "svm_fifo_enqueue %d", rv); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == size_4KB), "max_dequeue %u", max_dequeue); + + /* grow the fifo size : 4KB -> 8KB */ + svm_fifo_set_size (rx_fifo, size_8KB); + rv = svm_fifo_size (rx_fifo); + SEG_MGR_TEST ((rv == size_8KB), "svm_fifo_size %d", rv); + + /* verify that fifo cannot grow larger than the fifo size */ + /* 4KB + 8KB > 8KB, so only 4KB is queued */ + rv = svm_fifo_enqueue (rx_fifo, size_8KB, data); + SEG_MGR_TEST ((rv == size_4KB), "svm_fifo_enqueue %d", rv); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == size_8KB), "max_dequeue %u", max_dequeue); + + /* grow the fifo size : 8KB -> 16KB */ + svm_fifo_set_size (rx_fifo, size_16KB); + + /* 8KB + 4KB = 12KB */ + svm_fifo_enqueue (rx_fifo, size_4KB, data); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == size_12KB), "max_dequeue %u", max_dequeue); + + /* grow the fifo size : 16KB -> 32KB */ + svm_fifo_set_size (rx_fifo, size_32KB); + + /* 12KB + 8KB = 20KB */ + svm_fifo_enqueue (rx_fifo, size_8KB, data); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == size_20KB), "max_dequeue %u", max_dequeue); + + /* grow the fifo size : 32KB -> 64KB */ + svm_fifo_set_size (rx_fifo, size_64KB); + + /* 20KB + 32KB = 52KB */ + svm_fifo_enqueue (rx_fifo, size_32KB, data); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == size_52KB), "max_dequeue %u", max_dequeue); + + /* bulk enqueue */ + for (i = 0; i < 55; ++i) + { + svm_fifo_set_size (rx_fifo, svm_fifo_size (rx_fifo) + size_32KB); + svm_fifo_enqueue (rx_fifo, size_32KB, data); + } + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == (size_52KB + size_32KB * 55)), + "max_dequeue %u", max_dequeue); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_HIGH_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + most_grown = svm_fifo_size (rx_fifo); + + /* dequeue */ + svm_fifo_dequeue_drop (rx_fifo, size_20KB); + svm_fifo_dequeue_drop (rx_fifo, size_32KB); + + /* bulk dequeue */ + for (i = 0; i < 20; ++i) + svm_fifo_dequeue_drop (rx_fifo, size_32KB); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == (size_32KB * 35)), "max_dequeue %u", + max_dequeue); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_LOW_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* bulk dequeue */ + for (i = 0; i < 10; ++i) + svm_fifo_dequeue_drop (rx_fifo, size_32KB); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == (size_32KB * 25)), "max_dequeue %u", + max_dequeue); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* bulk enqueue */ + for (i = 0; i < 30; ++i) + svm_fifo_enqueue (rx_fifo, size_32KB, data); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == (size_32KB * 55)), "max_dequeue %u", + max_dequeue); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_HIGH_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* bulk dequeue */ + for (i = 0; i < 20; ++i) + svm_fifo_dequeue_drop (rx_fifo, size_32KB); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == (size_32KB * 35)), "max_dequeue %u", + max_dequeue); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_LOW_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* bulk dequeue */ + for (i = 0; i < 35; ++i) + svm_fifo_dequeue_drop (rx_fifo, size_32KB); + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + SEG_MGR_TEST ((max_dequeue == 0), "max_dequeue %u", max_dequeue); + rv = fifo_segment_get_mem_status (fs); + SEG_MGR_TEST ((rv == MEMORY_PRESSURE_NO_PRESSURE), + "fifo_segment_get_mem_status %s", states_str[rv]); + + /* (virtual) fifo size is still large as it is not updated */ + SEG_MGR_TEST ((rx_fifo->size == most_grown), "rx_fifo->size %u", + rx_fifo->size); + + vnet_app_detach_args_t detach_args = { + .app_index = attach_args.app_index, + .api_client_index = ~0, + }; + rv = vnet_application_detach (&detach_args); + SEG_MGR_TEST ((rv == 0), "vnet_application_detach %d", rv); + + return 0; +} + + +static clib_error_t * +segment_manager_test (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd_arg) +{ + int res = 0; + + vnet_session_enable_disable (vm, 1); + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "pressure_levels_1")) + res = segment_manager_test_pressure_1 (vm, input); + else if (unformat (input, "pressure_levels_2")) + res = segment_manager_test_pressure_2 (vm, input); + else if (unformat (input, "alloc")) + res = segment_manager_test_fifo_balanced_alloc (vm, input); + else if (unformat (input, "fifo_ops")) + res = segment_manager_test_fifo_ops (vm, input); + + else if (unformat (input, "all")) + { + if ((res = segment_manager_test_pressure_1 (vm, input))) + goto done; + if ((res = segment_manager_test_pressure_2 (vm, input))) + goto done; + if ((res = segment_manager_test_fifo_balanced_alloc (vm, input))) + goto done; + if ((res = segment_manager_test_fifo_ops (vm, input))) + goto done; + } + else + break; + } + +done: + if (res) + return clib_error_return (0, "Segment manager unit test failed."); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (tcp_test_command, static) = +{ + .path = "test segment-manager", + .short_help = "test segment manager [pressure_levels_1]" + "[pressure_level_2][alloc][fifo_ops][all]", + .function = segment_manager_test, +}; + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ + |