Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 1 | /* drivers/tty/smux_test.c |
| 2 | * |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 3 | * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 4 | * |
| 5 | * This software is licensed under the terms of the GNU General Public |
| 6 | * License version 2, as published by the Free Software Foundation, and |
| 7 | * may be copied, distributed, and modified under those terms. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | */ |
| 15 | #include <linux/debugfs.h> |
| 16 | #include <linux/list.h> |
| 17 | #include <linux/ctype.h> |
| 18 | #include <linux/jiffies.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/completion.h> |
| 22 | #include <linux/termios.h> |
| 23 | #include <linux/smux.h> |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 24 | #include <mach/subsystem_restart.h> |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 25 | #include "smux_private.h" |
| 26 | |
| 27 | #define DEBUG_BUFMAX 4096 |
| 28 | |
| 29 | /** |
| 30 | * Unit test assertion for logging test cases. |
| 31 | * |
| 32 | * @a lval |
| 33 | * @b rval |
| 34 | * @cmp comparison operator |
| 35 | * |
| 36 | * Assertion fails if (@a cmp @b) is not true which then |
| 37 | * logs the function and line number where the error occurred |
| 38 | * along with the values of @a and @b. |
| 39 | * |
| 40 | * Assumes that the following local variables exist: |
| 41 | * @buf - buffer to write failure message to |
| 42 | * @i - number of bytes written to buffer |
| 43 | * @max - maximum size of the buffer |
| 44 | * @failed - set to true if test fails |
| 45 | */ |
| 46 | #define UT_ASSERT_INT(a, cmp, b) \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 47 | { \ |
| 48 | int a_tmp = (a); \ |
| 49 | int b_tmp = (b); \ |
| 50 | if (!((a_tmp)cmp(b_tmp))) { \ |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 51 | i += scnprintf(buf + i, max - i, \ |
| 52 | "%s:%d Fail: " #a "(%d) " #cmp " " #b "(%d)\n", \ |
| 53 | __func__, __LINE__, \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 54 | a_tmp, b_tmp); \ |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 55 | failed = 1; \ |
| 56 | break; \ |
| 57 | } \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 58 | } |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 59 | |
| 60 | #define UT_ASSERT_PTR(a, cmp, b) \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 61 | { \ |
| 62 | void *a_tmp = (a); \ |
| 63 | void *b_tmp = (b); \ |
| 64 | if (!((a_tmp)cmp(b_tmp))) { \ |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 65 | i += scnprintf(buf + i, max - i, \ |
| 66 | "%s:%d Fail: " #a "(%p) " #cmp " " #b "(%p)\n", \ |
| 67 | __func__, __LINE__, \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 68 | a_tmp, b_tmp); \ |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 69 | failed = 1; \ |
| 70 | break; \ |
| 71 | } \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 72 | } |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 73 | |
| 74 | #define UT_ASSERT_UINT(a, cmp, b) \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 75 | { \ |
| 76 | unsigned a_tmp = (a); \ |
| 77 | unsigned b_tmp = (b); \ |
| 78 | if (!((a_tmp)cmp(b_tmp))) { \ |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 79 | i += scnprintf(buf + i, max - i, \ |
| 80 | "%s:%d Fail: " #a "(%u) " #cmp " " #b "(%u)\n", \ |
| 81 | __func__, __LINE__, \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 82 | a_tmp, b_tmp); \ |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 83 | failed = 1; \ |
| 84 | break; \ |
| 85 | } \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 86 | } |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 87 | |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 88 | /** |
| 89 | * In-range unit test assertion for test cases. |
| 90 | * |
| 91 | * @a lval |
| 92 | * @minv Minimum value |
| 93 | * @maxv Maximum value |
| 94 | * |
| 95 | * Assertion fails if @a is not on the exclusive range minv, maxv |
| 96 | * ((@a < @minv) or (@a > @maxv)). In the failure case, the macro |
| 97 | * logs the function and line number where the error occurred along |
| 98 | * with the values of @a and @minv, @maxv. |
| 99 | * |
| 100 | * Assumes that the following local variables exist: |
| 101 | * @buf - buffer to write failure message to |
| 102 | * @i - number of bytes written to buffer |
| 103 | * @max - maximum size of the buffer |
| 104 | * @failed - set to true if test fails |
| 105 | */ |
| 106 | #define UT_ASSERT_INT_IN_RANGE(a, minv, maxv) \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 107 | { \ |
| 108 | int a_tmp = (a); \ |
| 109 | int minv_tmp = (minv); \ |
| 110 | int maxv_tmp = (maxv); \ |
| 111 | if (((a_tmp) < (minv_tmp)) || ((a_tmp) > (maxv_tmp))) { \ |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 112 | i += scnprintf(buf + i, max - i, \ |
| 113 | "%s:%d Fail: " #a "(%d) < " #minv "(%d) or " \ |
| 114 | #a "(%d) > " #maxv "(%d)\n", \ |
| 115 | __func__, __LINE__, \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 116 | a_tmp, minv_tmp, a_tmp, maxv_tmp); \ |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 117 | failed = 1; \ |
| 118 | break; \ |
| 119 | } \ |
Eric Holmberg | 527b66f | 2012-07-02 16:01:16 -0600 | [diff] [blame] | 120 | } |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 121 | |
| 122 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 123 | static unsigned char test_array[] = {1, 1, 2, 3, 5, 8, 13, 21, 34, 55, |
| 124 | 89, 144, 233}; |
| 125 | |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 126 | /* when 1, forces failure of get_rx_buffer_mock function */ |
| 127 | static int get_rx_buffer_mock_fail; |
| 128 | |
| 129 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 130 | /* Used for mapping local to remote TIOCM signals */ |
| 131 | struct tiocm_test_vector { |
| 132 | uint32_t input; |
| 133 | uint32_t set_old; |
| 134 | uint32_t set_new; |
| 135 | uint32_t clr_old; |
| 136 | }; |
| 137 | |
| 138 | /** |
| 139 | * Allocates a new buffer for SMUX for every call. |
| 140 | */ |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 141 | static int get_rx_buffer(void *priv, void **pkt_priv, void **buffer, int size) |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 142 | { |
| 143 | void *rx_buf; |
| 144 | |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 145 | rx_buf = kmalloc(size, GFP_KERNEL); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 146 | *pkt_priv = (void *)0x1234; |
| 147 | *buffer = rx_buf; |
| 148 | |
| 149 | return 0; |
| 150 | } |
| 151 | |
| 152 | /* Test vector for packet tests. */ |
| 153 | struct test_vector { |
| 154 | const char *data; |
| 155 | const unsigned len; |
| 156 | }; |
| 157 | |
| 158 | /* Mock object metadata for SMUX_READ_DONE event */ |
| 159 | struct mock_read_event { |
| 160 | struct list_head list; |
| 161 | struct smux_meta_read meta; |
| 162 | }; |
| 163 | |
| 164 | /* Mock object metadata for SMUX_WRITE_DONE event */ |
| 165 | struct mock_write_event { |
| 166 | struct list_head list; |
| 167 | struct smux_meta_write meta; |
| 168 | }; |
| 169 | |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 170 | /* Mock object metadata for get_rx_buffer failure event */ |
| 171 | struct mock_get_rx_buff_event { |
| 172 | struct list_head list; |
| 173 | int size; |
| 174 | unsigned long jiffies; |
| 175 | }; |
| 176 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 177 | /* Mock object for all SMUX callback events */ |
| 178 | struct smux_mock_callback { |
| 179 | int cb_count; |
| 180 | struct completion cb_completion; |
| 181 | spinlock_t lock; |
| 182 | |
| 183 | /* status changes */ |
| 184 | int event_connected; |
| 185 | int event_disconnected; |
| 186 | int event_disconnected_ssr; |
| 187 | int event_low_wm; |
| 188 | int event_high_wm; |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 189 | int event_rx_retry_high_wm; |
| 190 | int event_rx_retry_low_wm; |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 191 | |
| 192 | /* TIOCM changes */ |
| 193 | int event_tiocm; |
| 194 | struct smux_meta_tiocm tiocm_meta; |
| 195 | |
| 196 | /* read event data */ |
| 197 | int event_read_done; |
| 198 | int event_read_failed; |
| 199 | struct list_head read_events; |
| 200 | |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 201 | /* read retry data */ |
| 202 | int get_rx_buff_retry_count; |
| 203 | struct list_head get_rx_buff_retry_events; |
| 204 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 205 | /* write event data */ |
| 206 | int event_write_done; |
| 207 | int event_write_failed; |
| 208 | struct list_head write_events; |
| 209 | }; |
| 210 | |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 211 | static int get_rx_buffer_mock(void *priv, void **pkt_priv, |
| 212 | void **buffer, int size); |
| 213 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 214 | /** |
| 215 | * Initialize mock callback data. Only call once. |
| 216 | * |
| 217 | * @cb Mock callback data |
| 218 | */ |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 219 | static void mock_cb_data_init(struct smux_mock_callback *cb) |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 220 | { |
| 221 | init_completion(&cb->cb_completion); |
| 222 | spin_lock_init(&cb->lock); |
| 223 | INIT_LIST_HEAD(&cb->read_events); |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 224 | INIT_LIST_HEAD(&cb->get_rx_buff_retry_events); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 225 | INIT_LIST_HEAD(&cb->write_events); |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * Reset mock callback data to default values. |
| 230 | * |
| 231 | * @cb Mock callback data |
| 232 | * |
| 233 | * All packets are freed and counters reset to zero. |
| 234 | */ |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 235 | static void mock_cb_data_reset(struct smux_mock_callback *cb) |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 236 | { |
| 237 | cb->cb_count = 0; |
| 238 | INIT_COMPLETION(cb->cb_completion); |
| 239 | cb->event_connected = 0; |
| 240 | cb->event_disconnected = 0; |
| 241 | cb->event_disconnected_ssr = 0; |
| 242 | cb->event_low_wm = 0; |
| 243 | cb->event_high_wm = 0; |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 244 | cb->event_rx_retry_high_wm = 0; |
| 245 | cb->event_rx_retry_low_wm = 0; |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 246 | cb->event_tiocm = 0; |
| 247 | cb->tiocm_meta.tiocm_old = 0; |
| 248 | cb->tiocm_meta.tiocm_new = 0; |
| 249 | |
| 250 | cb->event_read_done = 0; |
| 251 | cb->event_read_failed = 0; |
| 252 | while (!list_empty(&cb->read_events)) { |
| 253 | struct mock_read_event *meta; |
| 254 | meta = list_first_entry(&cb->read_events, |
| 255 | struct mock_read_event, |
| 256 | list); |
| 257 | kfree(meta->meta.buffer); |
| 258 | list_del(&meta->list); |
| 259 | kfree(meta); |
| 260 | } |
| 261 | |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 262 | cb->get_rx_buff_retry_count = 0; |
| 263 | while (!list_empty(&cb->get_rx_buff_retry_events)) { |
| 264 | struct mock_get_rx_buff_event *meta; |
| 265 | meta = list_first_entry(&cb->get_rx_buff_retry_events, |
| 266 | struct mock_get_rx_buff_event, |
| 267 | list); |
| 268 | list_del(&meta->list); |
| 269 | kfree(meta); |
| 270 | } |
| 271 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 272 | cb->event_write_done = 0; |
| 273 | cb->event_write_failed = 0; |
| 274 | while (!list_empty(&cb->write_events)) { |
| 275 | struct mock_write_event *meta; |
| 276 | meta = list_first_entry(&cb->write_events, |
| 277 | struct mock_write_event, |
| 278 | list); |
| 279 | list_del(&meta->list); |
| 280 | kfree(meta); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Dump the values of the mock callback data for debug purposes. |
| 286 | * |
| 287 | * @cb Mock callback data |
| 288 | * @buf Print buffer |
| 289 | * @max Maximum number of characters to print |
| 290 | * |
| 291 | * @returns Number of characters added to buffer |
| 292 | */ |
| 293 | static int mock_cb_data_print(const struct smux_mock_callback *cb, |
| 294 | char *buf, int max) |
| 295 | { |
| 296 | int i = 0; |
| 297 | |
| 298 | i += scnprintf(buf + i, max - i, |
| 299 | "\tcb_count=%d\n" |
| 300 | "\tcb_completion.done=%d\n" |
| 301 | "\tevent_connected=%d\n" |
| 302 | "\tevent_disconnected=%d\n" |
| 303 | "\tevent_disconnected_ssr=%d\n" |
| 304 | "\tevent_low_wm=%d\n" |
| 305 | "\tevent_high_wm=%d\n" |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 306 | "\tevent_rx_retry_high_wm=%d\n" |
| 307 | "\tevent_rx_retry_low_wm=%d\n" |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 308 | "\tevent_tiocm=%d\n" |
| 309 | "\tevent_read_done=%d\n" |
| 310 | "\tevent_read_failed=%d\n" |
Eric Holmberg | 8837364 | 2012-07-02 14:16:08 -0600 | [diff] [blame] | 311 | "\tread_events empty=%d\n" |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 312 | "\tget_rx_retry=%d\n" |
Eric Holmberg | 8837364 | 2012-07-02 14:16:08 -0600 | [diff] [blame] | 313 | "\tget_rx_retry_events empty=%d\n" |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 314 | "\tevent_write_done=%d\n" |
| 315 | "\tevent_write_failed=%d\n" |
Eric Holmberg | 8837364 | 2012-07-02 14:16:08 -0600 | [diff] [blame] | 316 | "\twrite_events empty=%d\n", |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 317 | cb->cb_count, |
| 318 | cb->cb_completion.done, |
| 319 | cb->event_connected, |
| 320 | cb->event_disconnected, |
| 321 | cb->event_disconnected_ssr, |
| 322 | cb->event_low_wm, |
| 323 | cb->event_high_wm, |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 324 | cb->event_rx_retry_high_wm, |
| 325 | cb->event_rx_retry_low_wm, |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 326 | cb->event_tiocm, |
| 327 | cb->event_read_done, |
| 328 | cb->event_read_failed, |
Eric Holmberg | 8837364 | 2012-07-02 14:16:08 -0600 | [diff] [blame] | 329 | list_empty(&cb->read_events), |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 330 | cb->get_rx_buff_retry_count, |
Eric Holmberg | 8837364 | 2012-07-02 14:16:08 -0600 | [diff] [blame] | 331 | list_empty(&cb->get_rx_buff_retry_events), |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 332 | cb->event_write_done, |
| 333 | cb->event_write_failed, |
| 334 | list_empty(&cb->write_events) |
| 335 | ); |
| 336 | |
| 337 | return i; |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * Mock object event callback. Used to logs events for analysis in the unit |
| 342 | * tests. |
| 343 | */ |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 344 | static void smux_mock_cb(void *priv, int event, const void *metadata) |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 345 | { |
| 346 | struct smux_mock_callback *cb_data_ptr; |
| 347 | struct mock_write_event *write_event_meta; |
| 348 | struct mock_read_event *read_event_meta; |
| 349 | unsigned long flags; |
| 350 | |
| 351 | cb_data_ptr = (struct smux_mock_callback *)priv; |
| 352 | if (cb_data_ptr == NULL) { |
| 353 | pr_err("%s: invalid private data\n", __func__); |
| 354 | return; |
| 355 | } |
| 356 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 357 | switch (event) { |
| 358 | case SMUX_CONNECTED: |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 359 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 360 | ++cb_data_ptr->event_connected; |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 361 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 362 | break; |
| 363 | |
| 364 | case SMUX_DISCONNECTED: |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 365 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 366 | ++cb_data_ptr->event_disconnected; |
| 367 | cb_data_ptr->event_disconnected_ssr = |
| 368 | ((struct smux_meta_disconnected *)metadata)->is_ssr; |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 369 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 370 | break; |
| 371 | |
| 372 | case SMUX_READ_DONE: |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 373 | read_event_meta = kmalloc(sizeof(struct mock_read_event), |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 374 | GFP_KERNEL); |
| 375 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
| 376 | ++cb_data_ptr->event_read_done; |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 377 | if (read_event_meta) { |
| 378 | read_event_meta->meta = |
| 379 | *(struct smux_meta_read *)metadata; |
| 380 | list_add_tail(&read_event_meta->list, |
| 381 | &cb_data_ptr->read_events); |
| 382 | } |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 383 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 384 | break; |
| 385 | |
| 386 | case SMUX_READ_FAIL: |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 387 | read_event_meta = kmalloc(sizeof(struct mock_read_event), |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 388 | GFP_KERNEL); |
| 389 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
| 390 | ++cb_data_ptr->event_read_failed; |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 391 | if (read_event_meta) { |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 392 | if (metadata) |
| 393 | read_event_meta->meta = |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 394 | *(struct smux_meta_read *)metadata; |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 395 | else |
| 396 | memset(&read_event_meta->meta, 0x0, |
| 397 | sizeof(struct smux_meta_read)); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 398 | list_add_tail(&read_event_meta->list, |
| 399 | &cb_data_ptr->read_events); |
| 400 | } |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 401 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 402 | break; |
| 403 | |
| 404 | case SMUX_WRITE_DONE: |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 405 | write_event_meta = kmalloc(sizeof(struct mock_write_event), |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 406 | GFP_KERNEL); |
| 407 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
| 408 | ++cb_data_ptr->event_write_done; |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 409 | if (write_event_meta) { |
| 410 | write_event_meta->meta = |
| 411 | *(struct smux_meta_write *)metadata; |
| 412 | list_add_tail(&write_event_meta->list, |
| 413 | &cb_data_ptr->write_events); |
| 414 | } |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 415 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 416 | break; |
| 417 | |
| 418 | case SMUX_WRITE_FAIL: |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 419 | write_event_meta = kmalloc(sizeof(struct mock_write_event), |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 420 | GFP_KERNEL); |
| 421 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
| 422 | ++cb_data_ptr->event_write_failed; |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 423 | if (write_event_meta) { |
| 424 | write_event_meta->meta = |
| 425 | *(struct smux_meta_write *)metadata; |
| 426 | list_add_tail(&write_event_meta->list, |
| 427 | &cb_data_ptr->write_events); |
| 428 | } |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 429 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 430 | break; |
| 431 | |
| 432 | case SMUX_LOW_WM_HIT: |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 433 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 434 | ++cb_data_ptr->event_low_wm; |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 435 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 436 | break; |
| 437 | |
| 438 | case SMUX_HIGH_WM_HIT: |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 439 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 440 | ++cb_data_ptr->event_high_wm; |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 441 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 442 | break; |
| 443 | |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 444 | case SMUX_RX_RETRY_HIGH_WM_HIT: |
| 445 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
| 446 | ++cb_data_ptr->event_rx_retry_high_wm; |
| 447 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
| 448 | break; |
| 449 | |
| 450 | case SMUX_RX_RETRY_LOW_WM_HIT: |
| 451 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
| 452 | ++cb_data_ptr->event_rx_retry_low_wm; |
| 453 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
| 454 | break; |
| 455 | |
| 456 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 457 | case SMUX_TIOCM_UPDATE: |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 458 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 459 | ++cb_data_ptr->event_tiocm; |
| 460 | cb_data_ptr->tiocm_meta = *(struct smux_meta_tiocm *)metadata; |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 461 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 462 | break; |
| 463 | |
| 464 | default: |
| 465 | pr_err("%s: unknown event %d\n", __func__, event); |
| 466 | }; |
| 467 | |
Eric Holmberg | 0560f7a | 2012-05-31 15:50:26 -0600 | [diff] [blame] | 468 | spin_lock_irqsave(&cb_data_ptr->lock, flags); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 469 | ++cb_data_ptr->cb_count; |
| 470 | complete(&cb_data_ptr->cb_completion); |
| 471 | spin_unlock_irqrestore(&cb_data_ptr->lock, flags); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Test Read/write usage. |
| 476 | * |
| 477 | * @buf Output buffer for failure/status messages |
| 478 | * @max Size of @buf |
| 479 | * @vectors Test vector data (must end with NULL item) |
| 480 | * @name Name of the test case for failure messages |
| 481 | * |
| 482 | * Perform a sanity test consisting of opening a port, writing test packet(s), |
| 483 | * reading the response(s), and closing the port. |
| 484 | * |
| 485 | * The port should already be configured to use either local or remote |
| 486 | * loopback. |
| 487 | */ |
| 488 | static int smux_ut_basic_core(char *buf, int max, |
| 489 | const struct test_vector *vectors, |
| 490 | const char *name) |
| 491 | { |
| 492 | int i = 0; |
| 493 | int failed = 0; |
| 494 | static struct smux_mock_callback cb_data; |
| 495 | static int cb_initialized; |
| 496 | int ret; |
| 497 | |
| 498 | if (!cb_initialized) |
| 499 | mock_cb_data_init(&cb_data); |
| 500 | |
| 501 | mock_cb_data_reset(&cb_data); |
| 502 | while (!failed) { |
| 503 | struct mock_write_event *write_event; |
| 504 | struct mock_read_event *read_event; |
| 505 | |
| 506 | /* open port */ |
| 507 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, smux_mock_cb, |
| 508 | get_rx_buffer); |
| 509 | UT_ASSERT_INT(ret, ==, 0); |
| 510 | UT_ASSERT_INT( |
| 511 | (int)wait_for_completion_timeout( |
| 512 | &cb_data.cb_completion, HZ), >, 0); |
| 513 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 514 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 515 | mock_cb_data_reset(&cb_data); |
| 516 | |
| 517 | /* write, read, and verify the test vector data */ |
| 518 | for (; vectors->data != NULL; ++vectors) { |
| 519 | const char *test_data = vectors->data; |
| 520 | const unsigned test_len = vectors->len; |
| 521 | |
| 522 | i += scnprintf(buf + i, max - i, |
| 523 | "Writing vector %p len %d\n", |
| 524 | test_data, test_len); |
| 525 | |
| 526 | /* write data */ |
| 527 | msm_smux_write(SMUX_TEST_LCID, (void *)0xCAFEFACE, |
| 528 | test_data, test_len); |
| 529 | UT_ASSERT_INT(ret, ==, 0); |
| 530 | UT_ASSERT_INT( |
| 531 | (int)wait_for_completion_timeout( |
| 532 | &cb_data.cb_completion, HZ), >, 0); |
| 533 | |
| 534 | /* wait for write and echo'd read to complete */ |
| 535 | INIT_COMPLETION(cb_data.cb_completion); |
| 536 | if (cb_data.cb_count < 2) |
| 537 | UT_ASSERT_INT( |
| 538 | (int)wait_for_completion_timeout( |
| 539 | &cb_data.cb_completion, HZ), |
| 540 | >, 0); |
| 541 | |
| 542 | UT_ASSERT_INT(cb_data.cb_count, >=, 1); |
| 543 | UT_ASSERT_INT(cb_data.event_write_done, ==, 1); |
| 544 | UT_ASSERT_INT(list_empty(&cb_data.write_events), ==, 0); |
| 545 | |
| 546 | write_event = list_first_entry(&cb_data.write_events, |
| 547 | struct mock_write_event, list); |
| 548 | UT_ASSERT_PTR(write_event->meta.pkt_priv, ==, |
| 549 | (void *)0xCAFEFACE); |
| 550 | UT_ASSERT_PTR(write_event->meta.buffer, ==, |
| 551 | (void *)test_data); |
| 552 | UT_ASSERT_INT(write_event->meta.len, ==, test_len); |
| 553 | |
| 554 | /* verify read event */ |
| 555 | UT_ASSERT_INT(cb_data.event_read_done, ==, 1); |
| 556 | UT_ASSERT_INT(list_empty(&cb_data.read_events), ==, 0); |
| 557 | read_event = list_first_entry(&cb_data.read_events, |
| 558 | struct mock_read_event, list); |
| 559 | UT_ASSERT_PTR(read_event->meta.pkt_priv, ==, |
| 560 | (void *)0x1234); |
| 561 | UT_ASSERT_PTR(read_event->meta.buffer, !=, NULL); |
| 562 | |
| 563 | if (read_event->meta.len != test_len || |
| 564 | memcmp(read_event->meta.buffer, |
| 565 | test_data, test_len)) { |
| 566 | /* data mismatch */ |
| 567 | char linebuff[80]; |
| 568 | |
| 569 | hex_dump_to_buffer(test_data, test_len, |
| 570 | 16, 1, linebuff, sizeof(linebuff), 1); |
| 571 | i += scnprintf(buf + i, max - i, |
| 572 | "Expected:\n%s\n\n", linebuff); |
| 573 | |
| 574 | hex_dump_to_buffer(read_event->meta.buffer, |
| 575 | read_event->meta.len, |
| 576 | 16, 1, linebuff, sizeof(linebuff), 1); |
| 577 | i += scnprintf(buf + i, max - i, |
| 578 | "Actual:\n%s\n", linebuff); |
| 579 | failed = 1; |
| 580 | break; |
| 581 | } |
| 582 | mock_cb_data_reset(&cb_data); |
| 583 | } |
| 584 | |
| 585 | /* close port */ |
| 586 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 587 | UT_ASSERT_INT(ret, ==, 0); |
| 588 | UT_ASSERT_INT( |
| 589 | (int)wait_for_completion_timeout( |
| 590 | &cb_data.cb_completion, HZ), |
| 591 | >, 0); |
| 592 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 593 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 594 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 595 | break; |
| 596 | } |
| 597 | |
| 598 | if (!failed) { |
| 599 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 600 | } else { |
| 601 | pr_err("%s: Failed\n", name); |
| 602 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 603 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 604 | msm_smux_close(SMUX_TEST_LCID); |
| 605 | } |
| 606 | |
| 607 | mock_cb_data_reset(&cb_data); |
| 608 | return i; |
| 609 | } |
| 610 | |
| 611 | /** |
| 612 | * Verify Basic Local Loopback Support |
| 613 | * |
| 614 | * Perform a sanity test consisting of opening a port in local loopback |
| 615 | * mode and writing a packet and reading the echo'd packet back. |
| 616 | */ |
| 617 | static int smux_ut_basic(char *buf, int max) |
| 618 | { |
| 619 | const struct test_vector test_data[] = { |
| 620 | {"hello\0world\n", sizeof("hello\0world\n")}, |
| 621 | {0, 0}, |
| 622 | }; |
| 623 | int i = 0; |
| 624 | int failed = 0; |
| 625 | int ret; |
| 626 | |
| 627 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 628 | while (!failed) { |
| 629 | /* enable loopback mode */ |
| 630 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 631 | SMUX_CH_OPTION_LOCAL_LOOPBACK, 0); |
| 632 | UT_ASSERT_INT(ret, ==, 0); |
| 633 | |
| 634 | i += smux_ut_basic_core(buf + i, max - i, test_data, __func__); |
| 635 | break; |
| 636 | } |
| 637 | |
| 638 | if (failed) { |
| 639 | pr_err("%s: Failed\n", __func__); |
| 640 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 641 | } |
| 642 | return i; |
| 643 | } |
| 644 | |
| 645 | /** |
| 646 | * Verify Basic Remote Loopback Support |
| 647 | * |
| 648 | * Perform a sanity test consisting of opening a port in remote loopback |
| 649 | * mode and writing a packet and reading the echo'd packet back. |
| 650 | */ |
| 651 | static int smux_ut_remote_basic(char *buf, int max) |
| 652 | { |
| 653 | const struct test_vector test_data[] = { |
| 654 | {"hello\0world\n", sizeof("hello\0world\n")}, |
| 655 | {0, 0}, |
| 656 | }; |
| 657 | int i = 0; |
| 658 | int failed = 0; |
| 659 | int ret; |
| 660 | |
| 661 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 662 | while (!failed) { |
| 663 | /* enable remote mode */ |
| 664 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 665 | SMUX_CH_OPTION_REMOTE_LOOPBACK, 0); |
| 666 | UT_ASSERT_INT(ret, ==, 0); |
| 667 | |
| 668 | i += smux_ut_basic_core(buf + i, max - i, test_data, __func__); |
| 669 | break; |
| 670 | } |
| 671 | |
| 672 | if (failed) { |
| 673 | pr_err("%s: Failed\n", __func__); |
| 674 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 675 | } |
| 676 | return i; |
| 677 | } |
| 678 | |
| 679 | /** |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 680 | * Verify Basic Subsystem Restart Support |
| 681 | * |
| 682 | * Run a basic loopback test followed by a subsystem restart and then another |
| 683 | * loopback test. |
| 684 | */ |
| 685 | static int smux_ut_remote_ssr_basic(char *buf, int max) |
| 686 | { |
| 687 | const struct test_vector test_data[] = { |
| 688 | {"hello\0world\n", sizeof("hello\0world\n")}, |
| 689 | {0, 0}, |
| 690 | }; |
| 691 | int i = 0; |
| 692 | int failed = 0; |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 693 | int retry_count = 0; |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 694 | int ret; |
| 695 | |
| 696 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 697 | while (!failed) { |
| 698 | /* enable remote mode */ |
| 699 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 700 | SMUX_CH_OPTION_REMOTE_LOOPBACK, 0); |
| 701 | UT_ASSERT_INT(ret, ==, 0); |
| 702 | |
| 703 | i += smux_ut_basic_core(buf + i, max - i, test_data, __func__); |
| 704 | subsystem_restart("external_modem"); |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 705 | |
| 706 | do { |
| 707 | msleep(500); |
| 708 | ++retry_count; |
| 709 | UT_ASSERT_INT(retry_count, <, 20); |
| 710 | } while (!smux_remote_is_active() && !failed); |
| 711 | |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 712 | i += smux_ut_basic_core(buf + i, max - i, test_data, __func__); |
| 713 | break; |
| 714 | } |
| 715 | |
| 716 | if (failed) { |
| 717 | pr_err("%s: Failed\n", __func__); |
| 718 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 719 | } |
| 720 | return i; |
| 721 | } |
| 722 | |
| 723 | /** |
| 724 | * Verify Subsystem Restart Support During Port Open |
| 725 | */ |
| 726 | static int smux_ut_remote_ssr_open(char *buf, int max) |
| 727 | { |
| 728 | static struct smux_mock_callback cb_data; |
| 729 | static int cb_initialized; |
| 730 | int ret; |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 731 | int retry_count; |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 732 | int i = 0; |
| 733 | int failed = 0; |
| 734 | |
| 735 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 736 | |
| 737 | if (!cb_initialized) |
| 738 | mock_cb_data_init(&cb_data); |
| 739 | |
| 740 | mock_cb_data_reset(&cb_data); |
| 741 | while (!failed) { |
| 742 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 743 | SMUX_CH_OPTION_REMOTE_LOOPBACK, 0); |
| 744 | UT_ASSERT_INT(ret, ==, 0); |
| 745 | |
| 746 | /* open port */ |
| 747 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, smux_mock_cb, |
| 748 | get_rx_buffer); |
| 749 | UT_ASSERT_INT(ret, ==, 0); |
| 750 | UT_ASSERT_INT( |
| 751 | (int)wait_for_completion_timeout( |
| 752 | &cb_data.cb_completion, HZ), >, 0); |
| 753 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 754 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 755 | mock_cb_data_reset(&cb_data); |
| 756 | |
| 757 | /* restart modem */ |
| 758 | subsystem_restart("external_modem"); |
| 759 | |
| 760 | /* verify SSR events */ |
| 761 | UT_ASSERT_INT(ret, ==, 0); |
| 762 | UT_ASSERT_INT( |
| 763 | (int)wait_for_completion_timeout( |
| 764 | &cb_data.cb_completion, 5*HZ), |
| 765 | >, 0); |
| 766 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 767 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 768 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 1); |
| 769 | mock_cb_data_reset(&cb_data); |
| 770 | |
| 771 | /* close port */ |
| 772 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 773 | UT_ASSERT_INT(ret, ==, 0); |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 774 | |
| 775 | /* wait for remote side to finish booting */ |
| 776 | retry_count = 0; |
| 777 | do { |
| 778 | msleep(500); |
| 779 | ++retry_count; |
| 780 | UT_ASSERT_INT(retry_count, <, 20); |
| 781 | } while (!smux_remote_is_active() && !failed); |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 782 | break; |
| 783 | } |
| 784 | |
| 785 | if (!failed) { |
| 786 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 787 | } else { |
| 788 | pr_err("%s: Failed\n", __func__); |
| 789 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 790 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 791 | msm_smux_close(SMUX_TEST_LCID); |
| 792 | } |
| 793 | |
| 794 | mock_cb_data_reset(&cb_data); |
| 795 | |
| 796 | return i; |
| 797 | } |
| 798 | |
| 799 | /** |
| 800 | * Verify get_rx_buffer callback retry doesn't livelock SSR |
| 801 | * until all RX Bufffer Retries have timed out. |
| 802 | * |
| 803 | * @buf Buffer for status message |
| 804 | * @max Size of buffer |
| 805 | * |
| 806 | * @returns Number of bytes written to @buf |
| 807 | */ |
| 808 | static int smux_ut_remote_ssr_rx_buff_retry(char *buf, int max) |
| 809 | { |
| 810 | static struct smux_mock_callback cb_data; |
| 811 | static int cb_initialized; |
| 812 | int i = 0; |
| 813 | int failed = 0; |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 814 | int retry_count; |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 815 | int ret; |
| 816 | |
| 817 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 818 | pr_err("%s", buf); |
| 819 | |
| 820 | if (!cb_initialized) |
| 821 | mock_cb_data_init(&cb_data); |
| 822 | |
| 823 | mock_cb_data_reset(&cb_data); |
| 824 | while (!failed) { |
| 825 | /* open port for loopback */ |
| 826 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 827 | SMUX_CH_OPTION_REMOTE_LOOPBACK, |
| 828 | 0); |
| 829 | UT_ASSERT_INT(ret, ==, 0); |
| 830 | |
| 831 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, |
| 832 | smux_mock_cb, get_rx_buffer_mock); |
| 833 | UT_ASSERT_INT(ret, ==, 0); |
| 834 | UT_ASSERT_INT( |
| 835 | (int)wait_for_completion_timeout( |
| 836 | &cb_data.cb_completion, HZ), >, 0); |
| 837 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 838 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 839 | mock_cb_data_reset(&cb_data); |
| 840 | |
| 841 | /* Queue up an RX buffer retry */ |
| 842 | get_rx_buffer_mock_fail = 1; |
| 843 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)1, |
| 844 | test_array, sizeof(test_array)); |
| 845 | UT_ASSERT_INT(ret, ==, 0); |
| 846 | while (!cb_data.get_rx_buff_retry_count) { |
| 847 | UT_ASSERT_INT( |
| 848 | (int)wait_for_completion_timeout( |
| 849 | &cb_data.cb_completion, HZ), |
| 850 | >, 0); |
| 851 | INIT_COMPLETION(cb_data.cb_completion); |
| 852 | } |
| 853 | if (failed) |
| 854 | break; |
| 855 | mock_cb_data_reset(&cb_data); |
| 856 | |
| 857 | /* trigger SSR */ |
| 858 | subsystem_restart("external_modem"); |
| 859 | |
| 860 | /* verify SSR completed */ |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 861 | retry_count = 0; |
| 862 | while (cb_data.event_disconnected_ssr == 0) { |
| 863 | (void)wait_for_completion_timeout( |
| 864 | &cb_data.cb_completion, HZ); |
| 865 | INIT_COMPLETION(cb_data.cb_completion); |
| 866 | ++retry_count; |
| 867 | UT_ASSERT_INT(retry_count, <, 10); |
| 868 | } |
| 869 | if (failed) |
| 870 | break; |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 871 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 872 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 1); |
| 873 | mock_cb_data_reset(&cb_data); |
| 874 | |
| 875 | /* close port */ |
| 876 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 877 | UT_ASSERT_INT(ret, ==, 0); |
Eric Holmberg | a43404f | 2012-08-28 15:31:01 -0600 | [diff] [blame] | 878 | |
| 879 | /* wait for remote side to finish booting */ |
| 880 | retry_count = 0; |
| 881 | do { |
| 882 | msleep(500); |
| 883 | ++retry_count; |
| 884 | UT_ASSERT_INT(retry_count, <, 20); |
| 885 | } while (!smux_remote_is_active() && !failed); |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 886 | break; |
| 887 | } |
| 888 | |
| 889 | if (!failed) { |
| 890 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 891 | } else { |
| 892 | pr_err("%s: Failed\n", __func__); |
| 893 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 894 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 895 | msm_smux_close(SMUX_TEST_LCID); |
| 896 | } |
| 897 | mock_cb_data_reset(&cb_data); |
| 898 | return i; |
| 899 | } |
| 900 | /** |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 901 | * Fill test pattern into provided buffer including an optional |
| 902 | * redzone 16 bytes before and 16 bytes after the buffer. |
| 903 | * |
| 904 | * buf --------- |
| 905 | * redzone |
| 906 | * --------- <- returned pointer |
| 907 | * data |
| 908 | * --------- <- returned pointer + len |
| 909 | * redzone |
| 910 | * --------- |
| 911 | * |
| 912 | * @buf Pointer to the buffer of size len or len+32 (redzone) |
| 913 | * @len Length of the *data* buffer (excluding 32-byte redzone) |
| 914 | * @redzone If true, adds redzone data |
| 915 | * |
| 916 | * @returns pointer to buffer (buf + 16 if redzone enabled) |
| 917 | */ |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 918 | static uint8_t *test_pattern_fill(char *buf, int len, int redzone) |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 919 | { |
| 920 | void *ret; |
| 921 | uint8_t ch; |
| 922 | |
| 923 | ret = buf; |
| 924 | if (redzone) { |
| 925 | memset((char *)buf, 0xAB, 16); |
| 926 | memset((char *)buf + len, 0xBA, 16); |
| 927 | ret += 16; |
| 928 | } |
| 929 | |
| 930 | /* fill with test pattern */ |
| 931 | for (ch = 0; len > 0; --len, ++ch) |
| 932 | *buf++ = (char)ch; |
| 933 | |
| 934 | return ret; |
| 935 | } |
| 936 | |
| 937 | /** |
| 938 | * Verify test pattern generated by test_pattern_fill. |
| 939 | * |
| 940 | * @buf_ptr Pointer to buffer pointer |
| 941 | * @len Length of the *data* buffer (excluding 32-byte redzone) |
| 942 | * @redzone If true, verifies redzone and adjusts *buf_ptr |
| 943 | * @errmsg Buffer for error message |
| 944 | * @errmsg_max Size of error message buffer |
| 945 | * |
| 946 | * @returns 0 for success; length of error message otherwise |
| 947 | */ |
Eric Holmberg | 837a934 | 2012-10-29 14:12:34 -0600 | [diff] [blame] | 948 | static unsigned test_pattern_verify(char **buf_ptr, int len, int redzone, |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 949 | char *errmsg, int errmsg_max) |
| 950 | { |
| 951 | int n; |
| 952 | int i = 0; |
| 953 | char linebuff[80]; |
| 954 | |
| 955 | if (redzone) { |
| 956 | *buf_ptr -= 16; |
| 957 | |
| 958 | /* verify prefix redzone */ |
| 959 | for (n = 0; n < 16; ++n) { |
| 960 | if (*buf_ptr[n] != 0xAB) { |
| 961 | hex_dump_to_buffer(*buf_ptr, 16, |
| 962 | 16, 1, linebuff, sizeof(linebuff), 1); |
| 963 | i += scnprintf(errmsg + i, errmsg_max - i, |
| 964 | "Redzone violation: %s\n", linebuff); |
| 965 | break; |
| 966 | } |
| 967 | } |
| 968 | |
| 969 | /* verify postfix redzone */ |
| 970 | for (n = 0; n < 16; ++n) { |
| 971 | if (*buf_ptr[len + n] != 0xBA) { |
| 972 | hex_dump_to_buffer(&(*buf_ptr)[len], 16, |
| 973 | 16, 1, linebuff, sizeof(linebuff), 1); |
| 974 | i += scnprintf(errmsg + i, errmsg_max - i, |
| 975 | "Redzone violation: %s\n", linebuff); |
| 976 | break; |
| 977 | } |
| 978 | } |
| 979 | } |
| 980 | return i; |
| 981 | } |
| 982 | |
| 983 | /** |
| 984 | * Write a multiple packets in ascending size and verify packet is received |
| 985 | * correctly. |
| 986 | * |
| 987 | * @buf Buffer for status message |
| 988 | * @max Size of buffer |
| 989 | * @name Name of the test for error reporting |
| 990 | * |
| 991 | * @returns Number of bytes written to @buf |
| 992 | * |
| 993 | * Requires that the port already be opened and loopback mode is |
| 994 | * configured correctly (if required). |
| 995 | */ |
| 996 | static int smux_ut_loopback_big_pkt(char *buf, int max, const char *name) |
| 997 | { |
| 998 | struct test_vector test_data[] = { |
| 999 | {0, 64}, |
| 1000 | {0, 128}, |
| 1001 | {0, 256}, |
| 1002 | {0, 512}, |
| 1003 | {0, 1024}, |
| 1004 | {0, 2048}, |
| 1005 | {0, 4096}, |
| 1006 | {0, 0}, |
| 1007 | }; |
| 1008 | int i = 0; |
| 1009 | int failed = 0; |
| 1010 | struct test_vector *tv; |
| 1011 | |
| 1012 | /* generate test data */ |
| 1013 | for (tv = test_data; tv->len > 0; ++tv) { |
| 1014 | tv->data = kmalloc(tv->len + 32, GFP_KERNEL); |
| 1015 | pr_err("%s: allocating %p len %d\n", |
| 1016 | __func__, tv->data, tv->len); |
| 1017 | if (!tv->data) { |
| 1018 | i += scnprintf(buf + i, max - i, |
| 1019 | "%s: Unable to allocate %d bytes\n", |
| 1020 | __func__, tv->len); |
| 1021 | failed = 1; |
| 1022 | goto out; |
| 1023 | } |
| 1024 | test_pattern_fill((uint8_t *)tv->data, tv->len, 1); |
| 1025 | } |
| 1026 | |
| 1027 | /* run test */ |
| 1028 | i += scnprintf(buf + i, max - i, "Running %s\n", name); |
| 1029 | while (!failed) { |
| 1030 | i += smux_ut_basic_core(buf + i, max - i, test_data, name); |
| 1031 | break; |
| 1032 | } |
| 1033 | |
| 1034 | out: |
| 1035 | if (failed) { |
| 1036 | pr_err("%s: Failed\n", name); |
| 1037 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 1038 | } |
| 1039 | |
| 1040 | for (tv = test_data; tv->len > 0; ++tv) { |
| 1041 | if (!tv->data) { |
| 1042 | i += test_pattern_verify((char **)&tv->data, |
| 1043 | tv->len, 1, buf + i, max - i); |
| 1044 | pr_err("%s: freeing %p len %d\n", __func__, |
| 1045 | tv->data, tv->len); |
| 1046 | kfree(tv->data); |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | return i; |
| 1051 | } |
| 1052 | |
| 1053 | /** |
| 1054 | * Verify Large-packet Local Loopback Support. |
| 1055 | * |
| 1056 | * @buf Buffer for status message |
| 1057 | * @max Size of buffer |
| 1058 | * |
| 1059 | * @returns Number of bytes written to @buf |
| 1060 | * |
| 1061 | * Open port in local loopback mode and write a multiple packets in ascending |
| 1062 | * size and verify packet is received correctly. |
| 1063 | */ |
| 1064 | static int smux_ut_local_big_pkt(char *buf, int max) |
| 1065 | { |
| 1066 | int i = 0; |
| 1067 | int ret; |
| 1068 | |
| 1069 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1070 | SMUX_CH_OPTION_LOCAL_LOOPBACK, 0); |
| 1071 | |
| 1072 | if (ret == 0) { |
| 1073 | smux_byte_loopback = SMUX_TEST_LCID; |
| 1074 | i += smux_ut_loopback_big_pkt(buf, max, __func__); |
| 1075 | smux_byte_loopback = 0; |
| 1076 | } else { |
| 1077 | i += scnprintf(buf + i, max - i, |
| 1078 | "%s: Unable to set loopback mode\n", |
| 1079 | __func__); |
| 1080 | } |
| 1081 | |
| 1082 | return i; |
| 1083 | } |
| 1084 | |
| 1085 | /** |
| 1086 | * Verify Large-packet Remote Loopback Support. |
| 1087 | * |
| 1088 | * @buf Buffer for status message |
| 1089 | * @max Size of buffer |
| 1090 | * |
| 1091 | * @returns Number of bytes written to @buf |
| 1092 | * |
| 1093 | * Open port in remote loopback mode and write a multiple packets in ascending |
| 1094 | * size and verify packet is received correctly. |
| 1095 | */ |
| 1096 | static int smux_ut_remote_big_pkt(char *buf, int max) |
| 1097 | { |
| 1098 | int i = 0; |
| 1099 | int ret; |
| 1100 | |
| 1101 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1102 | SMUX_CH_OPTION_REMOTE_LOOPBACK, 0); |
| 1103 | if (ret == 0) { |
| 1104 | i += smux_ut_loopback_big_pkt(buf, max, __func__); |
| 1105 | } else { |
| 1106 | i += scnprintf(buf + i, max - i, |
| 1107 | "%s: Unable to set loopback mode\n", |
| 1108 | __func__); |
| 1109 | } |
| 1110 | |
| 1111 | return i; |
| 1112 | } |
| 1113 | |
| 1114 | /** |
| 1115 | * Verify set and get operations for each TIOCM bit. |
| 1116 | * |
| 1117 | * @buf Buffer for status message |
| 1118 | * @max Size of buffer |
| 1119 | * @name Name of the test for error reporting |
| 1120 | * |
| 1121 | * @returns Number of bytes written to @buf |
| 1122 | */ |
| 1123 | static int smux_ut_tiocm(char *buf, int max, const char *name) |
| 1124 | { |
| 1125 | static struct smux_mock_callback cb_data; |
| 1126 | static int cb_initialized; |
| 1127 | static const struct tiocm_test_vector tiocm_vectors[] = { |
| 1128 | /* bit to set, set old, set new, clear old */ |
| 1129 | {TIOCM_DTR, TIOCM_DTR, TIOCM_DTR | TIOCM_DSR, TIOCM_DSR}, |
| 1130 | {TIOCM_RTS, TIOCM_RTS, TIOCM_RTS | TIOCM_CTS, TIOCM_CTS}, |
| 1131 | {TIOCM_RI, 0x0, TIOCM_RI, TIOCM_RI}, |
| 1132 | {TIOCM_CD, 0x0, TIOCM_CD, TIOCM_CD}, |
| 1133 | }; |
| 1134 | int i = 0; |
| 1135 | int failed = 0; |
| 1136 | int n; |
| 1137 | int ret; |
| 1138 | |
| 1139 | i += scnprintf(buf + i, max - i, "Running %s\n", name); |
| 1140 | |
| 1141 | if (!cb_initialized) |
| 1142 | mock_cb_data_init(&cb_data); |
| 1143 | |
| 1144 | mock_cb_data_reset(&cb_data); |
| 1145 | while (!failed) { |
| 1146 | /* open port */ |
| 1147 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, smux_mock_cb, |
| 1148 | get_rx_buffer); |
| 1149 | UT_ASSERT_INT(ret, ==, 0); |
| 1150 | UT_ASSERT_INT( |
| 1151 | (int)wait_for_completion_timeout( |
| 1152 | &cb_data.cb_completion, HZ), >, 0); |
| 1153 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1154 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 1155 | mock_cb_data_reset(&cb_data); |
| 1156 | |
| 1157 | /* set and clear each TIOCM bit */ |
| 1158 | for (n = 0; n < ARRAY_SIZE(tiocm_vectors) && !failed; ++n) { |
| 1159 | /* set signal and verify */ |
| 1160 | ret = msm_smux_tiocm_set(SMUX_TEST_LCID, |
| 1161 | tiocm_vectors[n].input, 0x0); |
| 1162 | UT_ASSERT_INT(ret, ==, 0); |
| 1163 | UT_ASSERT_INT( |
| 1164 | (int)wait_for_completion_timeout( |
| 1165 | &cb_data.cb_completion, HZ), >, 0); |
| 1166 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1167 | UT_ASSERT_INT(cb_data.event_tiocm, ==, 1); |
| 1168 | UT_ASSERT_INT(cb_data.tiocm_meta.tiocm_old, ==, |
| 1169 | tiocm_vectors[n].set_old); |
| 1170 | UT_ASSERT_INT(cb_data.tiocm_meta.tiocm_new, ==, |
| 1171 | tiocm_vectors[n].set_new); |
| 1172 | mock_cb_data_reset(&cb_data); |
| 1173 | |
| 1174 | /* clear signal and verify */ |
| 1175 | ret = msm_smux_tiocm_set(SMUX_TEST_LCID, 0x0, |
| 1176 | tiocm_vectors[n].input); |
| 1177 | UT_ASSERT_INT(ret, ==, 0); |
| 1178 | UT_ASSERT_INT( |
| 1179 | (int)wait_for_completion_timeout( |
| 1180 | &cb_data.cb_completion, HZ), |
| 1181 | >, 0); |
| 1182 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1183 | UT_ASSERT_INT(cb_data.event_tiocm, ==, 1); |
| 1184 | UT_ASSERT_INT(cb_data.tiocm_meta.tiocm_old, ==, |
| 1185 | tiocm_vectors[n].clr_old); |
| 1186 | UT_ASSERT_INT(cb_data.tiocm_meta.tiocm_new, ==, 0x0); |
| 1187 | mock_cb_data_reset(&cb_data); |
| 1188 | } |
| 1189 | if (failed) |
| 1190 | break; |
| 1191 | |
| 1192 | /* close port */ |
| 1193 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 1194 | UT_ASSERT_INT(ret, ==, 0); |
| 1195 | UT_ASSERT_INT( |
| 1196 | (int)wait_for_completion_timeout( |
| 1197 | &cb_data.cb_completion, HZ), |
| 1198 | >, 0); |
| 1199 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1200 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 1201 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 1202 | break; |
| 1203 | } |
| 1204 | |
| 1205 | if (!failed) { |
| 1206 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 1207 | } else { |
| 1208 | pr_err("%s: Failed\n", name); |
| 1209 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 1210 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 1211 | msm_smux_close(SMUX_TEST_LCID); |
| 1212 | } |
| 1213 | |
| 1214 | mock_cb_data_reset(&cb_data); |
| 1215 | return i; |
| 1216 | } |
| 1217 | |
| 1218 | /** |
| 1219 | * Verify TIOCM Status Bits for local loopback. |
| 1220 | * |
| 1221 | * @buf Buffer for status message |
| 1222 | * @max Size of buffer |
| 1223 | * |
| 1224 | * @returns Number of bytes written to @buf |
| 1225 | */ |
| 1226 | static int smux_ut_local_tiocm(char *buf, int max) |
| 1227 | { |
| 1228 | int i = 0; |
| 1229 | int ret; |
| 1230 | |
| 1231 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1232 | SMUX_CH_OPTION_LOCAL_LOOPBACK, 0); |
| 1233 | |
| 1234 | if (ret == 0) { |
| 1235 | smux_byte_loopback = SMUX_TEST_LCID; |
| 1236 | i += smux_ut_tiocm(buf, max, __func__); |
| 1237 | smux_byte_loopback = 0; |
| 1238 | } else { |
| 1239 | i += scnprintf(buf + i, max - i, |
| 1240 | "%s: Unable to set loopback mode\n", |
| 1241 | __func__); |
| 1242 | } |
| 1243 | |
| 1244 | return i; |
| 1245 | } |
| 1246 | |
| 1247 | /** |
| 1248 | * Verify TIOCM Status Bits for remote loopback. |
| 1249 | * |
| 1250 | * @buf Buffer for status message |
| 1251 | * @max Size of buffer |
| 1252 | * |
| 1253 | * @returns Number of bytes written to @buf |
| 1254 | */ |
| 1255 | static int smux_ut_remote_tiocm(char *buf, int max) |
| 1256 | { |
| 1257 | int i = 0; |
| 1258 | int ret; |
| 1259 | |
| 1260 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1261 | SMUX_CH_OPTION_REMOTE_LOOPBACK, 0); |
| 1262 | if (ret == 0) { |
| 1263 | i += smux_ut_tiocm(buf, max, __func__); |
| 1264 | } else { |
| 1265 | i += scnprintf(buf + i, max - i, |
| 1266 | "%s: Unable to set loopback mode\n", |
| 1267 | __func__); |
| 1268 | } |
| 1269 | |
| 1270 | return i; |
| 1271 | } |
| 1272 | |
| 1273 | /** |
| 1274 | * Verify High/Low Watermark notifications. |
| 1275 | * |
| 1276 | * @buf Buffer for status message |
| 1277 | * @max Size of buffer |
| 1278 | * |
| 1279 | * @returns Number of bytes written to @buf |
| 1280 | */ |
| 1281 | static int smux_ut_local_wm(char *buf, int max) |
| 1282 | { |
| 1283 | static struct smux_mock_callback cb_data; |
| 1284 | static int cb_initialized; |
| 1285 | int i = 0; |
| 1286 | int failed = 0; |
| 1287 | int ret; |
| 1288 | |
| 1289 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 1290 | pr_err("%s", buf); |
| 1291 | |
| 1292 | if (!cb_initialized) |
| 1293 | mock_cb_data_init(&cb_data); |
| 1294 | |
| 1295 | mock_cb_data_reset(&cb_data); |
| 1296 | smux_byte_loopback = SMUX_TEST_LCID; |
| 1297 | while (!failed) { |
| 1298 | /* open port for loopback with TX disabled */ |
| 1299 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1300 | SMUX_CH_OPTION_LOCAL_LOOPBACK |
| 1301 | | SMUX_CH_OPTION_REMOTE_TX_STOP, |
| 1302 | 0); |
| 1303 | UT_ASSERT_INT(ret, ==, 0); |
| 1304 | |
| 1305 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, smux_mock_cb, |
| 1306 | get_rx_buffer); |
| 1307 | UT_ASSERT_INT(ret, ==, 0); |
| 1308 | UT_ASSERT_INT( |
| 1309 | (int)wait_for_completion_timeout( |
| 1310 | &cb_data.cb_completion, HZ), >, 0); |
| 1311 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1312 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 1313 | mock_cb_data_reset(&cb_data); |
| 1314 | |
| 1315 | /* transmit 4 packets and verify high-watermark notification */ |
| 1316 | ret = 0; |
| 1317 | ret |= msm_smux_write(SMUX_TEST_LCID, (void *)1, |
| 1318 | test_array, sizeof(test_array)); |
| 1319 | ret |= msm_smux_write(SMUX_TEST_LCID, (void *)2, |
| 1320 | test_array, sizeof(test_array)); |
| 1321 | ret |= msm_smux_write(SMUX_TEST_LCID, (void *)3, |
| 1322 | test_array, sizeof(test_array)); |
| 1323 | UT_ASSERT_INT(ret, ==, 0); |
| 1324 | UT_ASSERT_INT(cb_data.cb_count, ==, 0); |
| 1325 | UT_ASSERT_INT(cb_data.event_high_wm, ==, 0); |
| 1326 | |
| 1327 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)4, |
| 1328 | test_array, sizeof(test_array)); |
| 1329 | UT_ASSERT_INT(ret, ==, 0); |
| 1330 | UT_ASSERT_INT( |
| 1331 | (int)wait_for_completion_timeout( |
| 1332 | &cb_data.cb_completion, HZ), |
| 1333 | >, 0); |
| 1334 | UT_ASSERT_INT(cb_data.event_high_wm, ==, 1); |
| 1335 | UT_ASSERT_INT(cb_data.event_low_wm, ==, 0); |
| 1336 | mock_cb_data_reset(&cb_data); |
| 1337 | |
| 1338 | /* exceed watermark and verify failure return value */ |
| 1339 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)5, |
| 1340 | test_array, sizeof(test_array)); |
| 1341 | UT_ASSERT_INT(ret, ==, -EAGAIN); |
| 1342 | |
| 1343 | /* re-enable TX and verify low-watermark notification */ |
| 1344 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1345 | 0, SMUX_CH_OPTION_REMOTE_TX_STOP); |
| 1346 | UT_ASSERT_INT(ret, ==, 0); |
| 1347 | while (cb_data.cb_count < 9) { |
| 1348 | UT_ASSERT_INT( |
| 1349 | (int)wait_for_completion_timeout( |
| 1350 | &cb_data.cb_completion, HZ), |
| 1351 | >, 0); |
| 1352 | INIT_COMPLETION(cb_data.cb_completion); |
| 1353 | } |
| 1354 | if (failed) |
| 1355 | break; |
| 1356 | |
| 1357 | UT_ASSERT_INT(cb_data.event_high_wm, ==, 0); |
| 1358 | UT_ASSERT_INT(cb_data.event_low_wm, ==, 1); |
| 1359 | UT_ASSERT_INT(cb_data.event_write_done, ==, 4); |
| 1360 | mock_cb_data_reset(&cb_data); |
| 1361 | |
| 1362 | /* close port */ |
| 1363 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 1364 | UT_ASSERT_INT(ret, ==, 0); |
| 1365 | UT_ASSERT_INT( |
| 1366 | (int)wait_for_completion_timeout( |
| 1367 | &cb_data.cb_completion, HZ), |
| 1368 | >, 0); |
| 1369 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1370 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 1371 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 1372 | break; |
| 1373 | } |
| 1374 | |
| 1375 | if (!failed) { |
| 1376 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 1377 | } else { |
| 1378 | pr_err("%s: Failed\n", __func__); |
| 1379 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 1380 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 1381 | msm_smux_close(SMUX_TEST_LCID); |
| 1382 | } |
| 1383 | smux_byte_loopback = 0; |
| 1384 | mock_cb_data_reset(&cb_data); |
| 1385 | return i; |
| 1386 | } |
| 1387 | |
| 1388 | /** |
| 1389 | * Verify smuxld_receive_buf regular and error processing. |
| 1390 | * |
| 1391 | * @buf Buffer for status message |
| 1392 | * @max Size of buffer |
| 1393 | * |
| 1394 | * @returns Number of bytes written to @buf |
| 1395 | */ |
| 1396 | static int smux_ut_local_smuxld_receive_buf(char *buf, int max) |
| 1397 | { |
| 1398 | static struct smux_mock_callback cb_data; |
| 1399 | static int cb_initialized; |
| 1400 | struct mock_read_event *meta; |
| 1401 | int i = 0; |
| 1402 | int failed = 0; |
| 1403 | int ret; |
| 1404 | char data[] = {SMUX_UT_ECHO_REQ, |
| 1405 | SMUX_UT_ECHO_REQ, SMUX_UT_ECHO_REQ, |
| 1406 | }; |
| 1407 | char flags[] = {0x0, 0x1, 0x0,}; |
| 1408 | |
| 1409 | |
| 1410 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 1411 | |
| 1412 | if (!cb_initialized) |
| 1413 | mock_cb_data_init(&cb_data); |
| 1414 | |
| 1415 | mock_cb_data_reset(&cb_data); |
| 1416 | smux_byte_loopback = SMUX_TEST_LCID; |
| 1417 | while (!failed) { |
| 1418 | /* open port for loopback */ |
| 1419 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1420 | SMUX_CH_OPTION_LOCAL_LOOPBACK, 0); |
| 1421 | UT_ASSERT_INT(ret, ==, 0); |
| 1422 | |
| 1423 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, smux_mock_cb, |
| 1424 | get_rx_buffer); |
| 1425 | UT_ASSERT_INT(ret, ==, 0); |
| 1426 | UT_ASSERT_INT( |
| 1427 | (int)wait_for_completion_timeout( |
| 1428 | &cb_data.cb_completion, HZ), >, 0); |
| 1429 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1430 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 1431 | mock_cb_data_reset(&cb_data); |
| 1432 | |
| 1433 | /* |
| 1434 | * Verify RX error processing by sending 3 echo requests: |
| 1435 | * one OK, one fail, and a final OK |
| 1436 | * |
| 1437 | * The parsing framework should process the requests |
| 1438 | * and send us three BYTE command packets with |
| 1439 | * ECHO ACK FAIL and ECHO ACK OK characters. |
| 1440 | */ |
| 1441 | smuxld_receive_buf(0, data, flags, sizeof(data)); |
| 1442 | |
| 1443 | /* verify response characters */ |
| 1444 | do { |
| 1445 | UT_ASSERT_INT( |
| 1446 | (int)wait_for_completion_timeout( |
| 1447 | &cb_data.cb_completion, HZ), >, 0); |
| 1448 | INIT_COMPLETION(cb_data.cb_completion); |
| 1449 | } while (cb_data.cb_count < 3); |
| 1450 | UT_ASSERT_INT(cb_data.cb_count, ==, 3); |
| 1451 | UT_ASSERT_INT(cb_data.event_read_done, ==, 3); |
| 1452 | |
| 1453 | meta = list_first_entry(&cb_data.read_events, |
| 1454 | struct mock_read_event, list); |
| 1455 | UT_ASSERT_INT((int)meta->meta.pkt_priv, ==, |
| 1456 | SMUX_UT_ECHO_ACK_OK); |
| 1457 | list_del(&meta->list); |
| 1458 | |
| 1459 | meta = list_first_entry(&cb_data.read_events, |
| 1460 | struct mock_read_event, list); |
| 1461 | UT_ASSERT_INT((int)meta->meta.pkt_priv, ==, |
| 1462 | SMUX_UT_ECHO_ACK_FAIL); |
| 1463 | list_del(&meta->list); |
| 1464 | |
| 1465 | meta = list_first_entry(&cb_data.read_events, |
| 1466 | struct mock_read_event, list); |
| 1467 | UT_ASSERT_INT((int)meta->meta.pkt_priv, ==, |
| 1468 | SMUX_UT_ECHO_ACK_OK); |
| 1469 | list_del(&meta->list); |
| 1470 | mock_cb_data_reset(&cb_data); |
| 1471 | |
| 1472 | /* close port */ |
| 1473 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 1474 | UT_ASSERT_INT(ret, ==, 0); |
| 1475 | UT_ASSERT_INT( |
| 1476 | (int)wait_for_completion_timeout( |
| 1477 | &cb_data.cb_completion, HZ), |
| 1478 | >, 0); |
| 1479 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1480 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 1481 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 1482 | break; |
| 1483 | } |
| 1484 | |
| 1485 | if (!failed) { |
| 1486 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 1487 | } else { |
| 1488 | pr_err("%s: Failed\n", __func__); |
| 1489 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 1490 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 1491 | msm_smux_close(SMUX_TEST_LCID); |
| 1492 | } |
| 1493 | smux_byte_loopback = 0; |
| 1494 | mock_cb_data_reset(&cb_data); |
| 1495 | return i; |
| 1496 | } |
| 1497 | |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 1498 | /** |
| 1499 | * Allocates a new buffer or returns a failure based upon the |
| 1500 | * global @get_rx_buffer_mock_fail. |
| 1501 | */ |
| 1502 | static int get_rx_buffer_mock(void *priv, void **pkt_priv, |
| 1503 | void **buffer, int size) |
| 1504 | { |
| 1505 | void *rx_buf; |
| 1506 | unsigned long flags; |
| 1507 | struct smux_mock_callback *cb_ptr; |
| 1508 | |
| 1509 | cb_ptr = (struct smux_mock_callback *)priv; |
| 1510 | if (!cb_ptr) { |
| 1511 | pr_err("%s: no callback data\n", __func__); |
| 1512 | return -ENXIO; |
| 1513 | } |
| 1514 | |
| 1515 | if (get_rx_buffer_mock_fail) { |
| 1516 | /* force failure and log failure event */ |
| 1517 | struct mock_get_rx_buff_event *meta; |
| 1518 | meta = kmalloc(sizeof(struct mock_get_rx_buff_event), |
| 1519 | GFP_KERNEL); |
| 1520 | if (!meta) { |
| 1521 | pr_err("%s: unable to allocate metadata\n", __func__); |
| 1522 | return -ENOMEM; |
| 1523 | } |
| 1524 | INIT_LIST_HEAD(&meta->list); |
| 1525 | meta->size = size; |
| 1526 | meta->jiffies = jiffies; |
| 1527 | |
| 1528 | spin_lock_irqsave(&cb_ptr->lock, flags); |
| 1529 | ++cb_ptr->get_rx_buff_retry_count; |
| 1530 | list_add_tail(&meta->list, &cb_ptr->get_rx_buff_retry_events); |
| 1531 | ++cb_ptr->cb_count; |
| 1532 | complete(&cb_ptr->cb_completion); |
| 1533 | spin_unlock_irqrestore(&cb_ptr->lock, flags); |
| 1534 | return -EAGAIN; |
| 1535 | } else { |
| 1536 | rx_buf = kmalloc(size, GFP_KERNEL); |
| 1537 | *pkt_priv = (void *)0x1234; |
| 1538 | *buffer = rx_buf; |
| 1539 | return 0; |
| 1540 | } |
| 1541 | return 0; |
| 1542 | } |
| 1543 | |
| 1544 | /** |
| 1545 | * Verify get_rx_buffer callback retry. |
| 1546 | * |
| 1547 | * @buf Buffer for status message |
| 1548 | * @max Size of buffer |
| 1549 | * |
| 1550 | * @returns Number of bytes written to @buf |
| 1551 | */ |
| 1552 | static int smux_ut_local_get_rx_buff_retry(char *buf, int max) |
| 1553 | { |
| 1554 | static struct smux_mock_callback cb_data; |
| 1555 | static int cb_initialized; |
| 1556 | int i = 0; |
| 1557 | int failed = 0; |
| 1558 | char try_two[] = "try 2"; |
| 1559 | int ret; |
| 1560 | unsigned long start_j; |
| 1561 | struct mock_get_rx_buff_event *event; |
| 1562 | struct mock_read_event *read_event; |
| 1563 | int try; |
| 1564 | |
| 1565 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 1566 | pr_err("%s", buf); |
| 1567 | |
| 1568 | if (!cb_initialized) |
| 1569 | mock_cb_data_init(&cb_data); |
| 1570 | |
| 1571 | mock_cb_data_reset(&cb_data); |
| 1572 | smux_byte_loopback = SMUX_TEST_LCID; |
| 1573 | while (!failed) { |
| 1574 | /* open port for loopback */ |
| 1575 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1576 | SMUX_CH_OPTION_LOCAL_LOOPBACK, |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 1577 | SMUX_CH_OPTION_AUTO_REMOTE_TX_STOP); |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 1578 | UT_ASSERT_INT(ret, ==, 0); |
| 1579 | |
| 1580 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, |
| 1581 | smux_mock_cb, get_rx_buffer_mock); |
| 1582 | UT_ASSERT_INT(ret, ==, 0); |
| 1583 | UT_ASSERT_INT( |
| 1584 | (int)wait_for_completion_timeout( |
| 1585 | &cb_data.cb_completion, HZ), >, 0); |
| 1586 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1587 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 1588 | mock_cb_data_reset(&cb_data); |
| 1589 | |
| 1590 | /* |
| 1591 | * Force get_rx_buffer failure for a single RX packet |
| 1592 | * |
| 1593 | * The get_rx_buffer calls should follow an exponential |
| 1594 | * back-off with a maximum timeout of 1024 ms after which we |
| 1595 | * will get a failure notification. |
| 1596 | * |
| 1597 | * Try Post Delay (ms) |
| 1598 | * 0 - |
| 1599 | * 1 1 |
| 1600 | * 2 2 |
| 1601 | * 3 4 |
| 1602 | * 4 8 |
| 1603 | * 5 16 |
| 1604 | * 6 32 |
| 1605 | * 7 64 |
| 1606 | * 8 128 |
| 1607 | * 9 256 |
| 1608 | * 10 512 |
| 1609 | * 11 1024 |
| 1610 | * 12 Fail |
| 1611 | * |
| 1612 | * All times are limited by the precision of the timer |
| 1613 | * framework, so ranges are used in the test |
| 1614 | * verification. |
| 1615 | */ |
| 1616 | get_rx_buffer_mock_fail = 1; |
| 1617 | start_j = jiffies; |
| 1618 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)1, |
| 1619 | test_array, sizeof(test_array)); |
| 1620 | UT_ASSERT_INT(ret, ==, 0); |
| 1621 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)2, |
| 1622 | try_two, sizeof(try_two)); |
| 1623 | UT_ASSERT_INT(ret, ==, 0); |
| 1624 | |
| 1625 | /* wait for RX failure event */ |
| 1626 | while (cb_data.event_read_failed == 0) { |
| 1627 | UT_ASSERT_INT( |
| 1628 | (int)wait_for_completion_timeout( |
| 1629 | &cb_data.cb_completion, 2*HZ), |
| 1630 | >, 0); |
| 1631 | INIT_COMPLETION(cb_data.cb_completion); |
| 1632 | } |
| 1633 | if (failed) |
| 1634 | break; |
| 1635 | |
| 1636 | /* verify retry attempts */ |
| 1637 | UT_ASSERT_INT(cb_data.get_rx_buff_retry_count, ==, 12); |
| 1638 | event = list_first_entry(&cb_data.get_rx_buff_retry_events, |
| 1639 | struct mock_get_rx_buff_event, list); |
| 1640 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1641 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1642 | UT_ASSERT_INT_IN_RANGE( |
| 1643 | jiffies_to_msecs(event->jiffies - start_j), |
| 1644 | 0, 0 + 20); |
| 1645 | start_j = event->jiffies; |
| 1646 | |
| 1647 | event = list_first_entry(&event->list, |
| 1648 | struct mock_get_rx_buff_event, list); |
| 1649 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1650 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1651 | UT_ASSERT_INT_IN_RANGE( |
| 1652 | jiffies_to_msecs(event->jiffies - start_j), |
| 1653 | 1, 1 + 20); |
| 1654 | start_j = event->jiffies; |
| 1655 | |
| 1656 | event = list_first_entry(&event->list, |
| 1657 | struct mock_get_rx_buff_event, list); |
| 1658 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1659 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1660 | UT_ASSERT_INT_IN_RANGE( |
| 1661 | jiffies_to_msecs(event->jiffies - start_j), |
| 1662 | 2, 2 + 20); |
| 1663 | start_j = event->jiffies; |
| 1664 | |
| 1665 | event = list_first_entry(&event->list, |
| 1666 | struct mock_get_rx_buff_event, list); |
| 1667 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1668 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1669 | UT_ASSERT_INT_IN_RANGE( |
| 1670 | jiffies_to_msecs(event->jiffies - start_j), |
| 1671 | 4, 4 + 20); |
| 1672 | start_j = event->jiffies; |
| 1673 | |
| 1674 | event = list_first_entry(&event->list, |
| 1675 | struct mock_get_rx_buff_event, list); |
| 1676 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1677 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1678 | UT_ASSERT_INT_IN_RANGE( |
| 1679 | jiffies_to_msecs(event->jiffies - start_j), |
| 1680 | 8, 8 + 20); |
| 1681 | start_j = event->jiffies; |
| 1682 | |
| 1683 | event = list_first_entry(&event->list, |
| 1684 | struct mock_get_rx_buff_event, list); |
| 1685 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1686 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1687 | UT_ASSERT_INT_IN_RANGE( |
| 1688 | jiffies_to_msecs(event->jiffies - start_j), |
| 1689 | 16, 16 + 20); |
| 1690 | start_j = event->jiffies; |
| 1691 | |
| 1692 | event = list_first_entry(&event->list, |
| 1693 | struct mock_get_rx_buff_event, list); |
| 1694 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1695 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1696 | UT_ASSERT_INT_IN_RANGE( |
| 1697 | jiffies_to_msecs(event->jiffies - start_j), |
| 1698 | 32 - 20, 32 + 20); |
| 1699 | start_j = event->jiffies; |
| 1700 | |
| 1701 | event = list_first_entry(&event->list, |
| 1702 | struct mock_get_rx_buff_event, list); |
| 1703 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1704 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1705 | UT_ASSERT_INT_IN_RANGE( |
| 1706 | jiffies_to_msecs(event->jiffies - start_j), |
| 1707 | 64 - 20, 64 + 20); |
| 1708 | start_j = event->jiffies; |
| 1709 | |
| 1710 | event = list_first_entry(&event->list, |
| 1711 | struct mock_get_rx_buff_event, list); |
| 1712 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1713 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1714 | UT_ASSERT_INT_IN_RANGE( |
| 1715 | jiffies_to_msecs(event->jiffies - start_j), |
| 1716 | 128 - 20, 128 + 20); |
| 1717 | start_j = event->jiffies; |
| 1718 | |
| 1719 | event = list_first_entry(&event->list, |
| 1720 | struct mock_get_rx_buff_event, list); |
| 1721 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1722 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1723 | UT_ASSERT_INT_IN_RANGE( |
| 1724 | jiffies_to_msecs(event->jiffies - start_j), |
| 1725 | 256 - 20, 256 + 20); |
| 1726 | start_j = event->jiffies; |
| 1727 | |
| 1728 | event = list_first_entry(&event->list, |
| 1729 | struct mock_get_rx_buff_event, list); |
| 1730 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1731 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1732 | UT_ASSERT_INT_IN_RANGE( |
| 1733 | jiffies_to_msecs(event->jiffies - start_j), |
| 1734 | 512 - 20, 512 + 20); |
| 1735 | start_j = event->jiffies; |
| 1736 | |
| 1737 | event = list_first_entry(&event->list, |
| 1738 | struct mock_get_rx_buff_event, list); |
| 1739 | pr_err("%s: event->jiffies = %d (ms)\n", __func__, |
| 1740 | jiffies_to_msecs(event->jiffies - start_j)); |
| 1741 | UT_ASSERT_INT_IN_RANGE( |
| 1742 | jiffies_to_msecs(event->jiffies - start_j), |
| 1743 | 1024 - 20, 1024 + 20); |
| 1744 | mock_cb_data_reset(&cb_data); |
| 1745 | |
| 1746 | /* verify 2nd pending RX packet goes through */ |
| 1747 | get_rx_buffer_mock_fail = 0; |
| 1748 | INIT_COMPLETION(cb_data.cb_completion); |
| 1749 | if (cb_data.event_read_done == 0) |
| 1750 | UT_ASSERT_INT( |
| 1751 | (int)wait_for_completion_timeout( |
| 1752 | &cb_data.cb_completion, HZ), |
| 1753 | >, 0); |
| 1754 | UT_ASSERT_INT(cb_data.event_read_done, ==, 1); |
| 1755 | UT_ASSERT_INT(list_empty(&cb_data.read_events), ==, 0); |
| 1756 | read_event = list_first_entry(&cb_data.read_events, |
| 1757 | struct mock_read_event, list); |
| 1758 | UT_ASSERT_PTR(read_event->meta.pkt_priv, ==, (void *)0x1234); |
| 1759 | UT_ASSERT_PTR(read_event->meta.buffer, !=, NULL); |
| 1760 | UT_ASSERT_INT(0, ==, memcmp(read_event->meta.buffer, try_two, |
| 1761 | sizeof(try_two))); |
| 1762 | mock_cb_data_reset(&cb_data); |
| 1763 | |
| 1764 | /* Test maximum retry queue size */ |
| 1765 | get_rx_buffer_mock_fail = 1; |
| 1766 | for (try = 0; try < (SMUX_RX_RETRY_MAX_PKTS + 1); ++try) { |
| 1767 | mock_cb_data_reset(&cb_data); |
| 1768 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)1, |
| 1769 | test_array, sizeof(test_array)); |
| 1770 | UT_ASSERT_INT(ret, ==, 0); |
| 1771 | UT_ASSERT_INT( |
| 1772 | (int)wait_for_completion_timeout( |
| 1773 | &cb_data.cb_completion, HZ), |
| 1774 | >, 0); |
| 1775 | } |
| 1776 | |
| 1777 | /* should have 32 successful rx packets and 1 failed */ |
| 1778 | while (cb_data.event_read_failed == 0) { |
| 1779 | UT_ASSERT_INT( |
| 1780 | (int)wait_for_completion_timeout( |
| 1781 | &cb_data.cb_completion, 2*HZ), |
| 1782 | >, 0); |
| 1783 | INIT_COMPLETION(cb_data.cb_completion); |
| 1784 | } |
| 1785 | if (failed) |
| 1786 | break; |
| 1787 | |
| 1788 | get_rx_buffer_mock_fail = 0; |
| 1789 | while (cb_data.event_read_done < SMUX_RX_RETRY_MAX_PKTS) { |
| 1790 | UT_ASSERT_INT( |
| 1791 | (int)wait_for_completion_timeout( |
| 1792 | &cb_data.cb_completion, 2*HZ), |
| 1793 | >, 0); |
| 1794 | INIT_COMPLETION(cb_data.cb_completion); |
| 1795 | } |
| 1796 | if (failed) |
| 1797 | break; |
| 1798 | |
| 1799 | UT_ASSERT_INT(1, ==, cb_data.event_read_failed); |
| 1800 | UT_ASSERT_INT(SMUX_RX_RETRY_MAX_PKTS, ==, |
| 1801 | cb_data.event_read_done); |
| 1802 | mock_cb_data_reset(&cb_data); |
| 1803 | |
| 1804 | /* close port */ |
| 1805 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 1806 | UT_ASSERT_INT(ret, ==, 0); |
| 1807 | UT_ASSERT_INT( |
| 1808 | (int)wait_for_completion_timeout( |
| 1809 | &cb_data.cb_completion, HZ), |
| 1810 | >, 0); |
| 1811 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1812 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 1813 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 1814 | break; |
| 1815 | } |
| 1816 | |
| 1817 | if (!failed) { |
| 1818 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 1819 | } else { |
| 1820 | pr_err("%s: Failed\n", __func__); |
| 1821 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 1822 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 1823 | msm_smux_close(SMUX_TEST_LCID); |
| 1824 | } |
| 1825 | smux_byte_loopback = 0; |
| 1826 | mock_cb_data_reset(&cb_data); |
| 1827 | return i; |
| 1828 | } |
| 1829 | |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 1830 | /** |
| 1831 | * Verify get_rx_buffer callback retry for auto-rx flow control. |
| 1832 | * |
| 1833 | * @buf Buffer for status message |
| 1834 | * @max Size of buffer |
| 1835 | * |
| 1836 | * @returns Number of bytes written to @buf |
| 1837 | */ |
| 1838 | static int smux_ut_local_get_rx_buff_retry_auto(char *buf, int max) |
| 1839 | { |
| 1840 | static struct smux_mock_callback cb_data; |
| 1841 | static int cb_initialized; |
| 1842 | int i = 0; |
| 1843 | int failed = 0; |
| 1844 | int ret; |
| 1845 | int try; |
| 1846 | int try_rx_retry_wm; |
| 1847 | |
| 1848 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 1849 | pr_err("%s", buf); |
| 1850 | |
| 1851 | if (!cb_initialized) |
| 1852 | mock_cb_data_init(&cb_data); |
| 1853 | |
| 1854 | mock_cb_data_reset(&cb_data); |
| 1855 | smux_byte_loopback = SMUX_TEST_LCID; |
| 1856 | while (!failed) { |
| 1857 | /* open port for loopback */ |
| 1858 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1859 | SMUX_CH_OPTION_LOCAL_LOOPBACK |
| 1860 | | SMUX_CH_OPTION_AUTO_REMOTE_TX_STOP, |
| 1861 | 0); |
| 1862 | UT_ASSERT_INT(ret, ==, 0); |
| 1863 | |
| 1864 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, |
| 1865 | smux_mock_cb, get_rx_buffer_mock); |
| 1866 | UT_ASSERT_INT(ret, ==, 0); |
| 1867 | UT_ASSERT_INT( |
| 1868 | (int)wait_for_completion_timeout( |
| 1869 | &cb_data.cb_completion, HZ), >, 0); |
| 1870 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1871 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 1872 | mock_cb_data_reset(&cb_data); |
| 1873 | |
| 1874 | /* Test high rx-retry watermark */ |
| 1875 | get_rx_buffer_mock_fail = 1; |
| 1876 | try_rx_retry_wm = 0; |
| 1877 | for (try = 0; try < SMUX_RX_RETRY_MAX_PKTS; ++try) { |
| 1878 | pr_err("%s: try %d\n", __func__, try); |
| 1879 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)1, |
| 1880 | test_array, sizeof(test_array)); |
| 1881 | UT_ASSERT_INT(ret, ==, 0); |
| 1882 | if (failed) |
| 1883 | break; |
| 1884 | |
| 1885 | if (!try_rx_retry_wm && |
| 1886 | cb_data.event_rx_retry_high_wm) { |
| 1887 | /* RX high watermark hit */ |
| 1888 | try_rx_retry_wm = try + 1; |
| 1889 | break; |
| 1890 | } |
| 1891 | |
| 1892 | while (cb_data.event_write_done <= try) { |
| 1893 | UT_ASSERT_INT( |
| 1894 | (int)wait_for_completion_timeout( |
| 1895 | &cb_data.cb_completion, HZ), |
| 1896 | >, 0); |
| 1897 | INIT_COMPLETION(cb_data.cb_completion); |
| 1898 | } |
| 1899 | if (failed) |
| 1900 | break; |
| 1901 | } |
| 1902 | if (failed) |
| 1903 | break; |
| 1904 | |
| 1905 | /* RX retry high watermark should have been set */ |
| 1906 | UT_ASSERT_INT(cb_data.event_rx_retry_high_wm, ==, 1); |
| 1907 | UT_ASSERT_INT(try_rx_retry_wm, ==, SMUX_RX_WM_HIGH); |
| 1908 | |
| 1909 | /* |
| 1910 | * Disabled RX buffer allocation failure and wait for |
| 1911 | * the SMUX_RX_WM_HIGH count successful packets. |
| 1912 | */ |
| 1913 | get_rx_buffer_mock_fail = 0; |
| 1914 | while (cb_data.event_read_done < SMUX_RX_WM_HIGH) { |
| 1915 | UT_ASSERT_INT( |
| 1916 | (int)wait_for_completion_timeout( |
| 1917 | &cb_data.cb_completion, 2*HZ), |
| 1918 | >, 0); |
| 1919 | INIT_COMPLETION(cb_data.cb_completion); |
| 1920 | } |
| 1921 | if (failed) |
| 1922 | break; |
| 1923 | |
| 1924 | UT_ASSERT_INT(0, ==, cb_data.event_read_failed); |
| 1925 | UT_ASSERT_INT(SMUX_RX_WM_HIGH, ==, |
| 1926 | cb_data.event_read_done); |
| 1927 | UT_ASSERT_INT(cb_data.event_rx_retry_low_wm, ==, 1); |
| 1928 | mock_cb_data_reset(&cb_data); |
| 1929 | |
| 1930 | /* close port */ |
| 1931 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 1932 | UT_ASSERT_INT(ret, ==, 0); |
| 1933 | UT_ASSERT_INT( |
| 1934 | (int)wait_for_completion_timeout( |
| 1935 | &cb_data.cb_completion, HZ), |
| 1936 | >, 0); |
| 1937 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1938 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 1939 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 1940 | break; |
| 1941 | } |
| 1942 | |
| 1943 | if (!failed) { |
| 1944 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 1945 | } else { |
| 1946 | pr_err("%s: Failed\n", __func__); |
| 1947 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 1948 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 1949 | msm_smux_close(SMUX_TEST_LCID); |
| 1950 | } |
| 1951 | smux_byte_loopback = 0; |
| 1952 | mock_cb_data_reset(&cb_data); |
| 1953 | return i; |
| 1954 | } |
| 1955 | |
Eric Holmberg | eee5d5a | 2012-08-13 14:45:27 -0600 | [diff] [blame] | 1956 | /** |
| 1957 | * Verify remote flow control (remote TX stop). |
| 1958 | * |
| 1959 | * @buf Buffer for status message |
| 1960 | * @max Size of buffer |
| 1961 | * |
| 1962 | * @returns Number of bytes written to @buf |
| 1963 | */ |
| 1964 | static int smux_ut_remote_tx_stop(char *buf, int max) |
| 1965 | { |
| 1966 | static struct smux_mock_callback cb_data; |
| 1967 | static int cb_initialized; |
| 1968 | int i = 0; |
| 1969 | int failed = 0; |
| 1970 | int ret; |
| 1971 | |
| 1972 | i += scnprintf(buf + i, max - i, "Running %s\n", __func__); |
| 1973 | pr_err("%s", buf); |
| 1974 | |
| 1975 | if (!cb_initialized) |
| 1976 | mock_cb_data_init(&cb_data); |
| 1977 | |
| 1978 | mock_cb_data_reset(&cb_data); |
| 1979 | while (!failed) { |
| 1980 | /* open port for remote loopback */ |
| 1981 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 1982 | SMUX_CH_OPTION_REMOTE_LOOPBACK, 0); |
| 1983 | UT_ASSERT_INT(ret, ==, 0); |
| 1984 | |
| 1985 | ret = msm_smux_open(SMUX_TEST_LCID, &cb_data, smux_mock_cb, |
| 1986 | get_rx_buffer); |
| 1987 | UT_ASSERT_INT(ret, ==, 0); |
| 1988 | UT_ASSERT_INT( |
| 1989 | (int)wait_for_completion_timeout( |
| 1990 | &cb_data.cb_completion, HZ), >, 0); |
| 1991 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 1992 | UT_ASSERT_INT(cb_data.event_connected, ==, 1); |
| 1993 | mock_cb_data_reset(&cb_data); |
| 1994 | |
| 1995 | /* send 1 packet and verify response */ |
| 1996 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)1, |
| 1997 | test_array, sizeof(test_array)); |
| 1998 | UT_ASSERT_INT(ret, ==, 0); |
| 1999 | UT_ASSERT_INT( |
| 2000 | (int)wait_for_completion_timeout( |
| 2001 | &cb_data.cb_completion, HZ), |
| 2002 | >, 0); |
| 2003 | UT_ASSERT_INT(cb_data.event_write_done, ==, 1); |
| 2004 | |
| 2005 | INIT_COMPLETION(cb_data.cb_completion); |
| 2006 | if (!cb_data.event_read_done) { |
| 2007 | UT_ASSERT_INT( |
| 2008 | (int)wait_for_completion_timeout( |
| 2009 | &cb_data.cb_completion, HZ), |
| 2010 | >, 0); |
| 2011 | } |
| 2012 | UT_ASSERT_INT(cb_data.event_read_done, ==, 1); |
| 2013 | mock_cb_data_reset(&cb_data); |
| 2014 | |
| 2015 | /* enable flow control */ |
| 2016 | UT_ASSERT_INT(smux_lch[SMUX_TEST_LCID].tx_flow_control, ==, 0); |
| 2017 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 2018 | SMUX_CH_OPTION_REMOTE_TX_STOP, 0); |
| 2019 | UT_ASSERT_INT(ret, ==, 0); |
| 2020 | |
| 2021 | /* wait for remote echo and clear our tx_flow control */ |
| 2022 | msleep(500); |
| 2023 | UT_ASSERT_INT(smux_lch[SMUX_TEST_LCID].tx_flow_control, ==, 1); |
| 2024 | smux_lch[SMUX_TEST_LCID].tx_flow_control = 0; |
| 2025 | |
| 2026 | /* Send 1 packet and verify no response */ |
| 2027 | ret = msm_smux_write(SMUX_TEST_LCID, (void *)2, |
| 2028 | test_array, sizeof(test_array)); |
| 2029 | UT_ASSERT_INT(ret, ==, 0); |
| 2030 | UT_ASSERT_INT( |
| 2031 | (int)wait_for_completion_timeout( |
| 2032 | &cb_data.cb_completion, HZ), |
| 2033 | >, 0); |
| 2034 | INIT_COMPLETION(cb_data.cb_completion); |
| 2035 | UT_ASSERT_INT(cb_data.event_write_done, ==, 1); |
| 2036 | UT_ASSERT_INT(cb_data.event_read_done, ==, 0); |
| 2037 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 2038 | |
| 2039 | UT_ASSERT_INT( |
| 2040 | (int)wait_for_completion_timeout( |
| 2041 | &cb_data.cb_completion, 1*HZ), |
| 2042 | ==, 0); |
| 2043 | UT_ASSERT_INT(cb_data.event_read_done, ==, 0); |
| 2044 | mock_cb_data_reset(&cb_data); |
| 2045 | |
| 2046 | /* disable flow control and verify response is received */ |
| 2047 | UT_ASSERT_INT(cb_data.event_read_done, ==, 0); |
| 2048 | ret = msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 2049 | 0, SMUX_CH_OPTION_REMOTE_TX_STOP); |
| 2050 | UT_ASSERT_INT(ret, ==, 0); |
| 2051 | |
| 2052 | UT_ASSERT_INT( |
| 2053 | (int)wait_for_completion_timeout( |
| 2054 | &cb_data.cb_completion, HZ), |
| 2055 | >, 0); |
| 2056 | UT_ASSERT_INT(cb_data.event_read_done, ==, 1); |
| 2057 | mock_cb_data_reset(&cb_data); |
| 2058 | |
| 2059 | /* close port */ |
| 2060 | ret = msm_smux_close(SMUX_TEST_LCID); |
| 2061 | UT_ASSERT_INT(ret, ==, 0); |
| 2062 | UT_ASSERT_INT( |
| 2063 | (int)wait_for_completion_timeout( |
| 2064 | &cb_data.cb_completion, HZ), |
| 2065 | >, 0); |
| 2066 | UT_ASSERT_INT(cb_data.cb_count, ==, 1); |
| 2067 | UT_ASSERT_INT(cb_data.event_disconnected, ==, 1); |
| 2068 | UT_ASSERT_INT(cb_data.event_disconnected_ssr, ==, 0); |
| 2069 | break; |
| 2070 | } |
| 2071 | |
| 2072 | if (!failed) { |
| 2073 | i += scnprintf(buf + i, max - i, "\tOK\n"); |
| 2074 | } else { |
| 2075 | pr_err("%s: Failed\n", __func__); |
| 2076 | i += scnprintf(buf + i, max - i, "\tFailed\n"); |
| 2077 | i += mock_cb_data_print(&cb_data, buf + i, max - i); |
| 2078 | msm_smux_set_ch_option(SMUX_TEST_LCID, |
| 2079 | 0, SMUX_CH_OPTION_REMOTE_TX_STOP); |
| 2080 | msm_smux_close(SMUX_TEST_LCID); |
| 2081 | } |
| 2082 | mock_cb_data_reset(&cb_data); |
| 2083 | return i; |
| 2084 | } |
| 2085 | |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 2086 | static char debug_buffer[DEBUG_BUFMAX]; |
| 2087 | |
| 2088 | static ssize_t debug_read(struct file *file, char __user *buf, |
| 2089 | size_t count, loff_t *ppos) |
| 2090 | { |
| 2091 | int (*fill)(char *buf, int max) = file->private_data; |
| 2092 | int bsize; |
| 2093 | |
| 2094 | if (*ppos != 0) |
| 2095 | return 0; |
| 2096 | |
| 2097 | bsize = fill(debug_buffer, DEBUG_BUFMAX); |
| 2098 | return simple_read_from_buffer(buf, count, ppos, debug_buffer, bsize); |
| 2099 | } |
| 2100 | |
| 2101 | static int debug_open(struct inode *inode, struct file *file) |
| 2102 | { |
| 2103 | file->private_data = inode->i_private; |
| 2104 | return 0; |
| 2105 | } |
| 2106 | |
| 2107 | static const struct file_operations debug_ops = { |
| 2108 | .read = debug_read, |
| 2109 | .open = debug_open, |
| 2110 | }; |
| 2111 | |
| 2112 | static void debug_create(const char *name, mode_t mode, |
| 2113 | struct dentry *dent, |
| 2114 | int (*fill)(char *buf, int max)) |
| 2115 | { |
| 2116 | debugfs_create_file(name, mode, dent, fill, &debug_ops); |
| 2117 | } |
| 2118 | |
| 2119 | static int __init smux_debugfs_init(void) |
| 2120 | { |
| 2121 | struct dentry *dent; |
| 2122 | |
Eric Holmberg | 9d89067 | 2012-06-13 17:58:13 -0600 | [diff] [blame] | 2123 | dent = debugfs_create_dir("n_smux_test", 0); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 2124 | if (IS_ERR(dent)) |
| 2125 | return PTR_ERR(dent); |
| 2126 | |
| 2127 | /* |
| 2128 | * Add Unit Test entries. |
| 2129 | * |
| 2130 | * The idea with unit tests is that you can run all of them |
| 2131 | * from ADB shell by doing: |
| 2132 | * adb shell |
| 2133 | * cat ut* |
| 2134 | * |
| 2135 | * And if particular tests fail, you can then repeatedly run the failing |
| 2136 | * tests as you debug and resolve the failing test. |
| 2137 | */ |
| 2138 | debug_create("ut_local_basic", 0444, dent, smux_ut_basic); |
| 2139 | debug_create("ut_remote_basic", 0444, dent, smux_ut_remote_basic); |
| 2140 | debug_create("ut_local_big_pkt", 0444, dent, smux_ut_local_big_pkt); |
| 2141 | debug_create("ut_remote_big_pkt", 0444, dent, smux_ut_remote_big_pkt); |
| 2142 | debug_create("ut_local_tiocm", 0444, dent, smux_ut_local_tiocm); |
| 2143 | debug_create("ut_remote_tiocm", 0444, dent, smux_ut_remote_tiocm); |
| 2144 | debug_create("ut_local_wm", 0444, dent, smux_ut_local_wm); |
| 2145 | debug_create("ut_local_smuxld_receive_buf", 0444, dent, |
| 2146 | smux_ut_local_smuxld_receive_buf); |
Eric Holmberg | b8435c8 | 2012-06-05 14:51:29 -0600 | [diff] [blame] | 2147 | debug_create("ut_local_get_rx_buff_retry", 0444, dent, |
| 2148 | smux_ut_local_get_rx_buff_retry); |
Eric Holmberg | 2e0906f | 2012-06-26 13:29:14 -0600 | [diff] [blame] | 2149 | debug_create("ut_local_get_rx_buff_retry_auto", 0444, dent, |
| 2150 | smux_ut_local_get_rx_buff_retry_auto); |
Eric Holmberg | 0601132 | 2012-07-06 18:17:03 -0600 | [diff] [blame] | 2151 | debug_create("ut_remote_ssr_basic", 0444, dent, |
| 2152 | smux_ut_remote_ssr_basic); |
| 2153 | debug_create("ut_remote_ssr_open", 0444, dent, |
| 2154 | smux_ut_remote_ssr_open); |
| 2155 | debug_create("ut_remote_ssr_rx_buff_retry", 0444, dent, |
| 2156 | smux_ut_remote_ssr_rx_buff_retry); |
Eric Holmberg | eee5d5a | 2012-08-13 14:45:27 -0600 | [diff] [blame] | 2157 | debug_create("ut_remote_tx_stop", 0444, dent, |
| 2158 | smux_ut_remote_tx_stop); |
Eric Holmberg | 8ed30f2 | 2012-05-10 19:16:51 -0600 | [diff] [blame] | 2159 | |
| 2160 | return 0; |
| 2161 | } |
| 2162 | |
| 2163 | late_initcall(smux_debugfs_init); |
| 2164 | |