1 /*-
2 * Copyright (c) 2018 Microsemi Corporation.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 /* $FreeBSD$ */
28
29 #include"smartpqi_includes.h"
30
31 /*
32 * Function to rescan the devices connected to adapter.
33 */
34 int
pqisrc_rescan_devices(pqisrc_softstate_t * softs)35 pqisrc_rescan_devices(pqisrc_softstate_t *softs)
36 {
37 int ret;
38
39 DBG_FUNC("IN\n");
40
41 os_sema_lock(&softs->scan_lock);
42
43 ret = pqisrc_scan_devices(softs);
44
45 os_sema_unlock(&softs->scan_lock);
46
47 DBG_FUNC("OUT\n");
48
49 return ret;
50 }
51
52 /*
53 * Subroutine to acknowledge the events processed by the driver to the adapter.
54 */
55 static void
pqisrc_acknowledge_event(pqisrc_softstate_t * softs,struct pqi_event * event)56 pqisrc_acknowledge_event(pqisrc_softstate_t *softs,
57 struct pqi_event *event)
58 {
59
60 pqi_event_acknowledge_request_t request;
61 ib_queue_t *ib_q = &softs->op_raid_ib_q[0];
62 int tmo = PQISRC_EVENT_ACK_RESP_TIMEOUT;
63 memset(&request,0,sizeof(request));
64
65 DBG_FUNC("IN\n");
66
67 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
68 request.header.iu_length = (sizeof(pqi_event_acknowledge_request_t) -
69 PQI_REQUEST_HEADER_LENGTH);
70 request.event_type = event->event_type;
71 request.event_id = event->event_id;
72 request.additional_event_id = event->additional_event_id;
73
74 /* Submit Event Acknowledge */
75
76 pqisrc_submit_cmnd(softs, ib_q, &request);
77
78 /*
79 * We have to special-case this type of request because the firmware
80 * does not generate an interrupt when this type of request completes.
81 * Therefore, we have to poll until we see that the firmware has
82 * consumed the request before we move on.
83 */
84
85 COND_WAIT(((ib_q->pi_local) == *(ib_q->ci_virt_addr)), tmo);
86 if (tmo <= 0) {
87 DBG_ERR("wait for event acknowledge timed out\n");
88 DBG_ERR("tmo : %d\n",tmo);
89 }
90
91 DBG_FUNC(" OUT\n");
92 }
93
94 /*
95 * Acknowledge processed events to the adapter.
96 */
97 void
pqisrc_ack_all_events(void * arg1)98 pqisrc_ack_all_events(void *arg1)
99 {
100 int i;
101 struct pqi_event *pending_event;
102 pqisrc_softstate_t *softs = (pqisrc_softstate_t*)arg1;
103
104 DBG_FUNC(" IN\n");
105
106
107 pending_event = &softs->pending_events[0];
108 for (i=0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
109 if (pending_event->pending == true) {
110 pending_event->pending = false;
111 pqisrc_acknowledge_event(softs, pending_event);
112 }
113 pending_event++;
114 }
115
116 /* Rescan devices except for heartbeat event */
117 if ((pqisrc_rescan_devices(softs)) != PQI_STATUS_SUCCESS) {
118 DBG_ERR(" Failed to Re-Scan devices\n ");
119 }
120 DBG_FUNC(" OUT\n");
121
122 }
123
124 /*
125 * Get event index from event type to validate the type of event.
126 */
127 static int
pqisrc_event_type_to_event_index(unsigned event_type)128 pqisrc_event_type_to_event_index(unsigned event_type)
129 {
130 int index;
131
132 switch (event_type) {
133 case PQI_EVENT_TYPE_HOTPLUG:
134 index = PQI_EVENT_HOTPLUG;
135 break;
136 case PQI_EVENT_TYPE_HARDWARE:
137 index = PQI_EVENT_HARDWARE;
138 break;
139 case PQI_EVENT_TYPE_PHYSICAL_DEVICE:
140 index = PQI_EVENT_PHYSICAL_DEVICE;
141 break;
142 case PQI_EVENT_TYPE_LOGICAL_DEVICE:
143 index = PQI_EVENT_LOGICAL_DEVICE;
144 break;
145 case PQI_EVENT_TYPE_AIO_STATE_CHANGE:
146 index = PQI_EVENT_AIO_STATE_CHANGE;
147 break;
148 case PQI_EVENT_TYPE_AIO_CONFIG_CHANGE:
149 index = PQI_EVENT_AIO_CONFIG_CHANGE;
150 break;
151 default:
152 index = -1;
153 break;
154 }
155
156 return index;
157 }
158
159 /*
160 * Function used to process the events supported by the adapter.
161 */
162 int
pqisrc_process_event_intr_src(pqisrc_softstate_t * softs,int obq_id)163 pqisrc_process_event_intr_src(pqisrc_softstate_t *softs,int obq_id)
164 {
165 uint32_t obq_pi,obq_ci;
166 pqi_event_response_t response;
167 ob_queue_t *event_q;
168 struct pqi_event *pending_event;
169 boolean_t need_delayed_work = false;
170
171 DBG_FUNC(" IN\n");
172
173 OS_ATOMIC64_INC(softs, num_intrs);
174
175 event_q = &softs->event_q;
176 obq_ci = event_q->ci_local;
177 obq_pi = *(event_q->pi_virt_addr);
178 DBG_INFO("Initial Event_q ci : %d Event_q pi : %d\n", obq_ci, obq_pi);
179
180 while(1) {
181 int event_index;
182 DBG_INFO("queue_id : %d ci : %d pi : %d\n",obq_id, obq_ci, obq_pi);
183 if (obq_pi == obq_ci)
184 break;
185
186 need_delayed_work = true;
187
188 /* Copy the response */
189 memcpy(&response, event_q->array_virt_addr + (obq_ci * event_q->elem_size),
190 sizeof(pqi_event_response_t));
191 DBG_INFO("response.header.iu_type : 0x%x \n", response.header.iu_type);
192 DBG_INFO("response.event_type : 0x%x \n", response.event_type);
193
194 event_index = pqisrc_event_type_to_event_index(response.event_type);
195
196 if (event_index >= 0) {
197 if(response.request_acknowledge) {
198 pending_event = &softs->pending_events[event_index];
199 pending_event->pending = true;
200 pending_event->event_type = response.event_type;
201 pending_event->event_id = response.event_id;
202 pending_event->additional_event_id = response.additional_event_id;
203 }
204 }
205
206 obq_ci = (obq_ci + 1) % event_q->num_elem;
207 }
208 /* Update CI */
209 event_q->ci_local = obq_ci;
210 PCI_MEM_PUT32(softs, event_q->ci_register_abs,
211 event_q->ci_register_offset, event_q->ci_local);
212
213 /*Adding events to the task queue for acknowledging*/
214 if (need_delayed_work == true) {
215 os_eventtaskqueue_enqueue(softs);
216 }
217
218 DBG_FUNC("OUT");
219 return PQI_STATUS_SUCCESS;
220
221
222 }
223
224 /*
225 * Function used to send a general management request to adapter.
226 */
pqisrc_submit_management_req(pqisrc_softstate_t * softs,pqi_event_config_request_t * request)227 int pqisrc_submit_management_req(pqisrc_softstate_t *softs,
228 pqi_event_config_request_t *request)
229 {
230 int ret = PQI_STATUS_SUCCESS;
231 ib_queue_t *op_ib_q = &softs->op_raid_ib_q[0];
232 rcb_t *rcb = NULL;
233
234 DBG_FUNC(" IN\n");
235
236 /* Get the tag */
237 request->request_id = pqisrc_get_tag(&softs->taglist);
238 if (INVALID_ELEM == request->request_id) {
239 DBG_ERR("Tag not available\n");
240 ret = PQI_STATUS_FAILURE;
241 goto err_out;
242 }
243
244 rcb = &softs->rcb[request->request_id];
245 rcb->req_pending = true;
246 rcb->tag = request->request_id;
247 /* Submit command on operational raid ib queue */
248 ret = pqisrc_submit_cmnd(softs, op_ib_q, request);
249 if (ret != PQI_STATUS_SUCCESS) {
250 DBG_ERR(" Unable to submit command\n");
251 goto err_cmd;
252 }
253
254 ret = pqisrc_wait_on_condition(softs, rcb);
255 if (ret != PQI_STATUS_SUCCESS) {
256 DBG_ERR("Management request timed out !!\n");
257 goto err_cmd;
258 }
259
260 os_reset_rcb(rcb);
261 pqisrc_put_tag(&softs->taglist,request->request_id);
262 DBG_FUNC("OUT\n");
263 return ret;
264
265 err_cmd:
266 os_reset_rcb(rcb);
267 pqisrc_put_tag(&softs->taglist,request->request_id);
268 err_out:
269 DBG_FUNC(" failed OUT : %d\n", ret);
270 return ret;
271 }
272
273 /*
274 * Build and send the general management request.
275 */
276 static int
pqi_event_configure(pqisrc_softstate_t * softs,pqi_event_config_request_t * request,dma_mem_t * buff)277 pqi_event_configure(pqisrc_softstate_t *softs ,
278 pqi_event_config_request_t *request,
279 dma_mem_t *buff)
280 {
281 int ret = PQI_STATUS_SUCCESS;
282
283 DBG_FUNC(" IN\n");
284
285 request->header.comp_feature = 0x00;
286 request->header.iu_length = sizeof(pqi_event_config_request_t) -
287 PQI_REQUEST_HEADER_LENGTH; /* excluding IU header length */
288
289 /*Op OQ id where response to be delivered */
290 request->response_queue_id = softs->op_ob_q[0].q_id;
291 request->buffer_length = buff->size;
292 request->sg_desc.addr = buff->dma_addr;
293 request->sg_desc.length = buff->size;
294 request->sg_desc.zero = 0;
295 request->sg_desc.type = SGL_DESCRIPTOR_CODE_LAST_ALTERNATIVE_SGL_SEGMENT;
296
297 /* submit management req IU*/
298 ret = pqisrc_submit_management_req(softs,request);
299 if(ret)
300 goto err_out;
301
302
303 DBG_FUNC(" OUT\n");
304 return ret;
305
306 err_out:
307 DBG_FUNC("Failed OUT\n");
308 return ret;
309 }
310
311 /*
312 * Prepare REPORT EVENT CONFIGURATION IU to request that
313 * event configuration information be reported.
314 */
pqisrc_report_event_config(pqisrc_softstate_t * softs)315 int pqisrc_report_event_config(pqisrc_softstate_t *softs)
316 {
317
318 int ret,i ;
319 pqi_event_config_request_t request;
320 pqi_event_config_t *event_config_p ;
321 dma_mem_t buf_report_event ;
322 /*bytes to be allocaed for report event config data-in buffer */
323 uint32_t alloc_size = sizeof(pqi_event_config_t) ;
324 memset(&request, 0 , sizeof(request));
325
326 DBG_FUNC(" IN\n");
327
328 memset(&buf_report_event, 0, sizeof(struct dma_mem));
329 buf_report_event.tag = "pqi_report_event_buf" ;
330 buf_report_event.size = alloc_size;
331 buf_report_event.align = PQISRC_DEFAULT_DMA_ALIGN;
332
333 /* allocate memory */
334 ret = os_dma_mem_alloc(softs, &buf_report_event);
335 if (ret) {
336 DBG_ERR("Failed to Allocate report event config buffer : %d\n", ret);
337 goto err_out;
338 }
339 DBG_INFO("buf_report_event.dma_addr = %p \n",(void*)buf_report_event.dma_addr);
340 DBG_INFO("buf_report_event.virt_addr = %p \n",(void*)buf_report_event.virt_addr);
341
342 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
343
344 /* Event configuration */
345 ret=pqi_event_configure(softs,&request,&buf_report_event);
346 if(ret)
347 goto free_mem;
348
349
350 event_config_p = (pqi_event_config_t*)buf_report_event.virt_addr;
351 softs->event_config.num_event_descriptors = MIN(event_config_p->num_event_descriptors,
352 PQI_MAX_EVENT_DESCRIPTORS) ;
353
354 for (i=0; i < softs->event_config.num_event_descriptors ;i++){
355 softs->event_config.descriptors[i].event_type =
356 event_config_p->descriptors[i].event_type;
357 }
358 /* free the allocated memory*/
359 os_dma_mem_free(softs, &buf_report_event);
360
361 DBG_FUNC(" OUT\n");
362 return ret;
363
364 free_mem:
365 os_dma_mem_free(softs, &buf_report_event);
366 err_out:
367 DBG_FUNC("Failed OUT\n");
368 return PQI_STATUS_FAILURE;
369 }
370
371 /*
372 * Prepare SET EVENT CONFIGURATION IU to request that
373 * event configuration parameters be set.
374 */
pqisrc_set_event_config(pqisrc_softstate_t * softs)375 int pqisrc_set_event_config(pqisrc_softstate_t *softs)
376 {
377
378 int ret,i;
379 pqi_event_config_request_t request;
380 pqi_event_config_t *event_config_p;
381 dma_mem_t buf_set_event;
382 /*bytes to be allocaed for set event config data-out buffer */
383 uint32_t alloc_size = sizeof(pqi_event_config_t);
384 memset(&request, 0 , sizeof(request));
385
386 DBG_FUNC(" IN\n");
387
388 memset(&buf_set_event, 0, sizeof(struct dma_mem));
389 buf_set_event.tag = "pqi_set_event_buf";
390 buf_set_event.size = alloc_size;
391 buf_set_event.align = PQISRC_DEFAULT_DMA_ALIGN;
392
393 /* allocate memory */
394 ret = os_dma_mem_alloc(softs, &buf_set_event);
395 if (ret) {
396 DBG_ERR("Failed to Allocate set event config buffer : %d\n", ret);
397 goto err_out;
398 }
399
400 DBG_INFO("buf_set_event.dma_addr = %p\n",(void*)buf_set_event.dma_addr);
401 DBG_INFO("buf_set_event.virt_addr = %p\n",(void*)buf_set_event.virt_addr);
402
403 request.header.iu_type = PQI_REQUEST_IU_SET_EVENT_CONFIG;
404 request.iu_specific.global_event_oq_id = softs->event_q.q_id;
405
406 /*pointer to data-out buffer*/
407
408 event_config_p = (pqi_event_config_t *)buf_set_event.virt_addr;
409
410 event_config_p->num_event_descriptors = softs->event_config.num_event_descriptors;
411
412
413 for (i=0; i < softs->event_config.num_event_descriptors ; i++){
414 event_config_p->descriptors[i].event_type =
415 softs->event_config.descriptors[i].event_type;
416 if( pqisrc_event_type_to_event_index(event_config_p->descriptors[i].event_type) != -1)
417 event_config_p->descriptors[i].oq_id = softs->event_q.q_id;
418 else
419 event_config_p->descriptors[i].oq_id = 0; /* Not supported this event. */
420
421
422 }
423 /* Event configuration */
424 ret = pqi_event_configure(softs,&request,&buf_set_event);
425 if(ret)
426 goto free_mem;
427
428 os_dma_mem_free(softs, &buf_set_event);
429
430 DBG_FUNC(" OUT\n");
431 return ret;
432
433 free_mem:
434 os_dma_mem_free(softs, &buf_set_event);
435 err_out:
436 DBG_FUNC("Failed OUT\n");
437 return PQI_STATUS_FAILURE;
438
439 }
440