Lines Matching full:ring
2 * DHD debug ring API and structures
40 dhd_dbg_ring_init(dhd_pub_t *dhdp, dhd_dbg_ring_t *ring, uint16 id, uint8 *name, in dhd_dbg_ring_init() argument
52 ring->lock = DHD_DBG_RING_LOCK_INIT(dhdp->osh); in dhd_dbg_ring_init()
53 if (!ring->lock) in dhd_dbg_ring_init()
56 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_init()
57 ring->id = id; in dhd_dbg_ring_init()
58 strncpy(ring->name, name, DBGRING_NAME_MAX); in dhd_dbg_ring_init()
59 ring->name[DBGRING_NAME_MAX - 1] = 0; in dhd_dbg_ring_init()
60 ring->ring_size = ring_sz; in dhd_dbg_ring_init()
61 ring->wp = ring->rp = 0; in dhd_dbg_ring_init()
62 ring->ring_buf = buf; in dhd_dbg_ring_init()
63 ring->threshold = DBGRING_FLUSH_THRESHOLD(ring); in dhd_dbg_ring_init()
64 ring->state = RING_SUSPEND; in dhd_dbg_ring_init()
65 ring->rem_len = 0; in dhd_dbg_ring_init()
66 ring->sched_pull = TRUE; in dhd_dbg_ring_init()
67 ring->pull_inactive = pull_inactive; in dhd_dbg_ring_init()
68 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_init()
74 dhd_dbg_ring_deinit(dhd_pub_t *dhdp, dhd_dbg_ring_t *ring) in dhd_dbg_ring_deinit() argument
77 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_deinit()
78 ring->id = 0; in dhd_dbg_ring_deinit()
79 ring->name[0] = 0; in dhd_dbg_ring_deinit()
80 ring->wp = ring->rp = 0; in dhd_dbg_ring_deinit()
81 memset(&ring->stat, 0, sizeof(ring->stat)); in dhd_dbg_ring_deinit()
82 ring->threshold = 0; in dhd_dbg_ring_deinit()
83 ring->state = RING_STOP; in dhd_dbg_ring_deinit()
84 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_deinit()
86 DHD_DBG_RING_LOCK_DEINIT(dhdp->osh, ring->lock); in dhd_dbg_ring_deinit()
90 dhd_dbg_ring_sched_pull(dhd_dbg_ring_t *ring, uint32 pending_len, in dhd_dbg_ring_sched_pull() argument
94 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_sched_pull()
98 if (ring->threshold > 0 && in dhd_dbg_ring_sched_pull()
99 (pending_len >= ring->threshold) && ring->sched_pull) { in dhd_dbg_ring_sched_pull()
106 ring->sched_pull = FALSE; in dhd_dbg_ring_sched_pull()
107 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_sched_pull()
110 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_sched_pull()
115 dhd_dbg_ring_get_pending_len(dhd_dbg_ring_t *ring) in dhd_dbg_ring_get_pending_len() argument
119 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_get_pending_len()
120 if (ring->stat.written_bytes > ring->stat.read_bytes) { in dhd_dbg_ring_get_pending_len()
121 pending_len = ring->stat.written_bytes - ring->stat.read_bytes; in dhd_dbg_ring_get_pending_len()
122 } else if (ring->stat.written_bytes < ring->stat.read_bytes) { in dhd_dbg_ring_get_pending_len()
123 pending_len = PENDING_LEN_MAX - ring->stat.read_bytes + ring->stat.written_bytes; in dhd_dbg_ring_get_pending_len()
127 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_get_pending_len()
133 dhd_dbg_ring_push(dhd_dbg_ring_t *ring, dhd_dbg_ring_entry_t *hdr, void *data) in dhd_dbg_ring_push() argument
140 if (!ring || !hdr || !data) { in dhd_dbg_ring_push()
144 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_push()
146 if (ring->state != RING_ACTIVE) { in dhd_dbg_ring_push()
147 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_push()
153 DHD_DBGIF(("%s: RING%d[%s] hdr->len=%u, w_len=%u, wp=%d, rp=%d, ring_start=0x%p;" in dhd_dbg_ring_push()
155 __FUNCTION__, ring->id, ring->name, hdr->len, w_len, ring->wp, ring->rp, in dhd_dbg_ring_push()
156 ring->ring_buf, ring->ring_size)); in dhd_dbg_ring_push()
158 if (w_len > ring->ring_size) { in dhd_dbg_ring_push()
159 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_push()
160 DHD_ERROR(("%s: RING%d[%s] w_len=%u, ring_size=%u," in dhd_dbg_ring_push()
161 " write size exceeds ring size !\n", in dhd_dbg_ring_push()
162 __FUNCTION__, ring->id, ring->name, w_len, ring->ring_size)); in dhd_dbg_ring_push()
167 avail_size = DBG_RING_CHECK_WRITE_SPACE(ring->rp, ring->wp, ring->ring_size); in dhd_dbg_ring_push()
170 if (ring->rp <= ring->wp) { in dhd_dbg_ring_push()
171 ring->tail_padded = TRUE; in dhd_dbg_ring_push()
172 ring->rem_len = ring->ring_size - ring->wp; in dhd_dbg_ring_push()
173 DHD_DBGIF(("%s: RING%d[%s] Insuffient tail space," in dhd_dbg_ring_push()
176 ring->id, ring->name, ring->rp, ring->wp, in dhd_dbg_ring_push()
177 ring->rem_len, ring->ring_size, avail_size, in dhd_dbg_ring_push()
181 memset((uint8 *)ring->ring_buf + ring->wp, 0, ring->rem_len); in dhd_dbg_ring_push()
183 if (ring->rp == 0) { in dhd_dbg_ring_push()
184 r_entry = (dhd_dbg_ring_entry_t *)((uint8 *)ring->ring_buf + in dhd_dbg_ring_push()
185 ring->rp); in dhd_dbg_ring_push()
186 ring->rp += ENTRY_LENGTH(r_entry); in dhd_dbg_ring_push()
187 ring->stat.read_bytes += ENTRY_LENGTH(r_entry); in dhd_dbg_ring_push()
192 if (ring->rp == ring->wp) { in dhd_dbg_ring_push()
193 ring->rp = 0; in dhd_dbg_ring_push()
195 ring->wp = 0; in dhd_dbg_ring_push()
197 __FUNCTION__, ring->rp, ring->wp)); in dhd_dbg_ring_push()
200 r_entry = (dhd_dbg_ring_entry_t *)((uint8 *)ring->ring_buf + in dhd_dbg_ring_push()
201 ring->rp); in dhd_dbg_ring_push()
203 if (ring->rp + ENTRY_LENGTH(r_entry) >= ring->ring_size) { in dhd_dbg_ring_push()
204 DHD_ERROR(("%s: RING%d[%s] rp points out of boundary, " in dhd_dbg_ring_push()
205 "ring->wp=%u, ring->rp=%u, ring->ring_size=%d\n", in dhd_dbg_ring_push()
206 __FUNCTION__, ring->id, ring->name, ring->wp, in dhd_dbg_ring_push()
207 ring->rp, ring->ring_size)); in dhd_dbg_ring_push()
209 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_push()
212 ring->rp += ENTRY_LENGTH(r_entry); in dhd_dbg_ring_push()
214 if (ring->tail_padded && in dhd_dbg_ring_push()
215 ((ring->rp + ring->rem_len) == ring->ring_size)) { in dhd_dbg_ring_push()
216 DHD_DBGIF(("%s: RING%d[%s] Found padding," in dhd_dbg_ring_push()
218 __FUNCTION__, ring->id, ring->name, in dhd_dbg_ring_push()
220 ring->rp = 0; in dhd_dbg_ring_push()
221 ring->tail_padded = FALSE; in dhd_dbg_ring_push()
222 ring->rem_len = 0; in dhd_dbg_ring_push()
224 ring->stat.read_bytes += ENTRY_LENGTH(r_entry); in dhd_dbg_ring_push()
225 DHD_DBGIF(("%s: RING%d[%s] read_bytes=%d, wp=%d, rp=%d\n", in dhd_dbg_ring_push()
226 __FUNCTION__, ring->id, ring->name, ring->stat.read_bytes, in dhd_dbg_ring_push()
227 ring->wp, ring->rp)); in dhd_dbg_ring_push()
234 /* check before writing to the ring */ in dhd_dbg_ring_push()
235 if (ring->wp + w_len >= ring->ring_size) { in dhd_dbg_ring_push()
236 DHD_ERROR(("%s: RING%d[%s] wp pointed out of ring boundary, " in dhd_dbg_ring_push()
237 "wp=%d, ring_size=%d, w_len=%u\n", __FUNCTION__, ring->id, in dhd_dbg_ring_push()
238 ring->name, ring->wp, ring->ring_size, w_len)); in dhd_dbg_ring_push()
240 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_push()
244 w_entry = (dhd_dbg_ring_entry_t *)((uint8 *)ring->ring_buf + ring->wp); in dhd_dbg_ring_push()
251 ring->wp += w_len; in dhd_dbg_ring_push()
254 ring->stat.written_records++; in dhd_dbg_ring_push()
255 ring->stat.written_bytes += w_len; in dhd_dbg_ring_push()
256 DHD_DBGIF(("%s : RING%d[%s] written_records %d, written_bytes %d, read_bytes=%d," in dhd_dbg_ring_push()
257 " ring->threshold=%d, wp=%d, rp=%d\n", __FUNCTION__, ring->id, ring->name, in dhd_dbg_ring_push()
258 ring->stat.written_records, ring->stat.written_bytes, ring->stat.read_bytes, in dhd_dbg_ring_push()
259 ring->threshold, ring->wp, ring->rp)); in dhd_dbg_ring_push()
261 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_push()
266 * This function folds ring->lock, so callers of this function
267 * should not hold ring->lock.
270 dhd_dbg_ring_pull_single(dhd_dbg_ring_t *ring, void *data, uint32 buf_len, bool strip_header) in dhd_dbg_ring_pull_single() argument
277 if (!ring || !data || buf_len <= 0) { in dhd_dbg_ring_pull_single()
281 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_pull_single()
283 /* pull from ring is allowed for inactive (suspended) ring in dhd_dbg_ring_pull_single()
285 * when a trap occurs the ring is suspended and data is then in dhd_dbg_ring_pull_single()
286 * pulled to dump it to a file. For other rings if ring is in dhd_dbg_ring_pull_single()
289 if (!ring->pull_inactive && (ring->state != RING_ACTIVE)) { in dhd_dbg_ring_pull_single()
293 if (ring->rp == ring->wp) { in dhd_dbg_ring_pull_single()
297 DHD_DBGIF(("%s: RING%d[%s] buf_len=%u, wp=%d, rp=%d, ring_start=0x%p; ring_size=%u\n", in dhd_dbg_ring_pull_single()
298 __FUNCTION__, ring->id, ring->name, buf_len, ring->wp, ring->rp, in dhd_dbg_ring_pull_single()
299 ring->ring_buf, ring->ring_size)); in dhd_dbg_ring_pull_single()
301 r_entry = (dhd_dbg_ring_entry_t *)((uint8 *)ring->ring_buf + ring->rp); in dhd_dbg_ring_pull_single()
305 if ((ring->rp + rlen) > ring->ring_size) { in dhd_dbg_ring_pull_single()
306 DHD_ERROR(("%s: entry len %d is out of boundary of ring size %d," in dhd_dbg_ring_pull_single()
307 " current ring %d[%s] - rp=%d\n", __FUNCTION__, rlen, in dhd_dbg_ring_pull_single()
308 ring->ring_size, ring->id, ring->name, ring->rp)); in dhd_dbg_ring_pull_single()
323 DHD_ERROR(("%s: ring %d[%s] - ring size=%d, wp=%d, rp=%d\n", in dhd_dbg_ring_pull_single()
324 __FUNCTION__, ring->id, ring->name, ring->ring_size, in dhd_dbg_ring_pull_single()
325 ring->wp, ring->rp)); in dhd_dbg_ring_pull_single()
332 /* update ring context */ in dhd_dbg_ring_pull_single()
333 ring->rp += ENTRY_LENGTH(r_entry); in dhd_dbg_ring_pull_single()
335 if (ring->rp != ring->wp && in dhd_dbg_ring_pull_single()
336 ring->tail_padded && ((ring->rp + ring->rem_len) >= ring->ring_size)) { in dhd_dbg_ring_pull_single()
337 DHD_DBGIF(("%s: RING%d[%s] Found padding, rp=%d, wp=%d\n", in dhd_dbg_ring_pull_single()
338 __FUNCTION__, ring->id, ring->name, ring->rp, ring->wp)); in dhd_dbg_ring_pull_single()
339 ring->rp = 0; in dhd_dbg_ring_pull_single()
340 ring->tail_padded = FALSE; in dhd_dbg_ring_pull_single()
341 ring->rem_len = 0; in dhd_dbg_ring_pull_single()
343 if (ring->rp >= ring->ring_size) { in dhd_dbg_ring_pull_single()
344 DHD_ERROR(("%s: RING%d[%s] rp pointed out of ring boundary," in dhd_dbg_ring_pull_single()
345 " rp=%d, ring_size=%d\n", __FUNCTION__, ring->id, in dhd_dbg_ring_pull_single()
346 ring->name, ring->rp, ring->ring_size)); in dhd_dbg_ring_pull_single()
351 ring->stat.read_bytes += ENTRY_LENGTH(r_entry); in dhd_dbg_ring_pull_single()
352 DHD_DBGIF(("%s RING%d[%s]read_bytes %d, wp=%d, rp=%d\n", __FUNCTION__, in dhd_dbg_ring_pull_single()
353 ring->id, ring->name, ring->stat.read_bytes, ring->wp, ring->rp)); in dhd_dbg_ring_pull_single()
356 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_pull_single()
362 dhd_dbg_ring_pull(dhd_dbg_ring_t *ring, void *data, uint32 buf_len, bool strip_hdr) in dhd_dbg_ring_pull() argument
367 if (!ring || !data) in dhd_dbg_ring_pull()
370 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_pull()
371 if (!ring->pull_inactive && (ring->state != RING_ACTIVE)) { in dhd_dbg_ring_pull()
372 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_pull()
375 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_pull()
378 r_len = dhd_dbg_ring_pull_single(ring, data, buf_len, strip_hdr); in dhd_dbg_ring_pull()
390 dhd_dbg_ring_config(dhd_dbg_ring_t *ring, int log_level, uint32 threshold) in dhd_dbg_ring_config() argument
393 if (!ring) in dhd_dbg_ring_config()
396 if (ring->state == RING_STOP) in dhd_dbg_ring_config()
399 DHD_DBG_RING_LOCK(ring->lock, flags); in dhd_dbg_ring_config()
402 ring->state = RING_SUSPEND; in dhd_dbg_ring_config()
404 ring->state = RING_ACTIVE; in dhd_dbg_ring_config()
406 ring->log_level = log_level; in dhd_dbg_ring_config()
407 ring->threshold = MIN(threshold, DBGRING_FLUSH_THRESHOLD(ring)); in dhd_dbg_ring_config()
409 DHD_DBG_RING_UNLOCK(ring->lock, flags); in dhd_dbg_ring_config()
415 dhd_dbg_ring_start(dhd_dbg_ring_t *ring) in dhd_dbg_ring_start() argument
417 if (!ring) in dhd_dbg_ring_start()
420 /* Initialize the information for the ring */ in dhd_dbg_ring_start()
421 ring->state = RING_SUSPEND; in dhd_dbg_ring_start()
422 ring->log_level = 0; in dhd_dbg_ring_start()
423 ring->rp = ring->wp = 0; in dhd_dbg_ring_start()
424 ring->threshold = 0; in dhd_dbg_ring_start()
425 memset(&ring->stat, 0, sizeof(struct ring_statistics)); in dhd_dbg_ring_start()
426 memset(ring->ring_buf, 0, ring->ring_size); in dhd_dbg_ring_start()