2 * Copyright (c) 2018 Microsemi Corporation.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 #include"smartpqi_includes.h"
32 * Function to rescan the devices connected to adapter.
35 pqisrc_rescan_devices(pqisrc_softstate_t *softs)
41 os_sema_lock(&softs->scan_lock);
43 ret = pqisrc_scan_devices(softs);
45 os_sema_unlock(&softs->scan_lock);
52 void pqisrc_wait_for_rescan_complete(pqisrc_softstate_t *softs)
54 os_sema_lock(&softs->scan_lock);
55 os_sema_unlock(&softs->scan_lock);
59 * Subroutine to acknowledge the events processed by the driver to the adapter.
62 pqisrc_acknowledge_event(pqisrc_softstate_t *softs,
63 struct pqi_event *event)
66 pqi_event_acknowledge_request_t request;
67 ib_queue_t *ib_q = &softs->op_raid_ib_q[0];
68 int tmo = PQISRC_EVENT_ACK_RESP_TIMEOUT;
69 memset(&request,0,sizeof(request));
73 request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
74 request.header.iu_length = (sizeof(pqi_event_acknowledge_request_t) -
75 PQI_REQUEST_HEADER_LENGTH);
76 request.event_type = event->event_type;
77 request.event_id = event->event_id;
78 request.additional_event_id = event->additional_event_id;
80 /* Submit Event Acknowledge */
82 pqisrc_submit_cmnd(softs, ib_q, &request);
85 * We have to special-case this type of request because the firmware
86 * does not generate an interrupt when this type of request completes.
87 * Therefore, we have to poll until we see that the firmware has
88 * consumed the request before we move on.
91 COND_WAIT(((ib_q->pi_local) == *(ib_q->ci_virt_addr)), tmo);
93 DBG_ERR("wait for event acknowledge timed out\n");
94 DBG_ERR("tmo : %d\n",tmo);
101 * Acknowledge processed events to the adapter.
104 pqisrc_ack_all_events(void *arg1)
107 struct pqi_event *pending_event;
108 pqisrc_softstate_t *softs = (pqisrc_softstate_t*)arg1;
112 pending_event = &softs->pending_events[0];
113 for (i=0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
114 if (pending_event->pending == true) {
115 pending_event->pending = false;
116 pqisrc_acknowledge_event(softs, pending_event);
121 /* Rescan devices except for heartbeat event */
122 if ((pqisrc_rescan_devices(softs)) != PQI_STATUS_SUCCESS) {
123 DBG_ERR(" Failed to Re-Scan devices\n ");
130 * Get event index from event type to validate the type of event.
133 pqisrc_event_type_to_event_index(unsigned event_type)
137 switch (event_type) {
138 case PQI_EVENT_TYPE_HOTPLUG:
139 index = PQI_EVENT_HOTPLUG;
141 case PQI_EVENT_TYPE_HARDWARE:
142 index = PQI_EVENT_HARDWARE;
144 case PQI_EVENT_TYPE_PHYSICAL_DEVICE:
145 index = PQI_EVENT_PHYSICAL_DEVICE;
147 case PQI_EVENT_TYPE_LOGICAL_DEVICE:
148 index = PQI_EVENT_LOGICAL_DEVICE;
150 case PQI_EVENT_TYPE_AIO_STATE_CHANGE:
151 index = PQI_EVENT_AIO_STATE_CHANGE;
153 case PQI_EVENT_TYPE_AIO_CONFIG_CHANGE:
154 index = PQI_EVENT_AIO_CONFIG_CHANGE;
165 * Function used to process the events supported by the adapter.
168 pqisrc_process_event_intr_src(pqisrc_softstate_t *softs,int obq_id)
170 uint32_t obq_pi,obq_ci;
171 pqi_event_response_t response;
173 struct pqi_event *pending_event;
174 boolean_t need_delayed_work = false;
178 OS_ATOMIC64_INC(softs, num_intrs);
180 event_q = &softs->event_q;
181 obq_ci = event_q->ci_local;
182 obq_pi = *(event_q->pi_virt_addr);
183 DBG_INFO("Initial Event_q ci : %d Event_q pi : %d\n", obq_ci, obq_pi);
187 DBG_INFO("queue_id : %d ci : %d pi : %d\n",obq_id, obq_ci, obq_pi);
188 if (obq_pi == obq_ci)
191 need_delayed_work = true;
193 /* Copy the response */
194 memcpy(&response, event_q->array_virt_addr + (obq_ci * event_q->elem_size),
195 sizeof(pqi_event_response_t));
196 DBG_INFO("response.header.iu_type : 0x%x \n", response.header.iu_type);
197 DBG_INFO("response.event_type : 0x%x \n", response.event_type);
199 event_index = pqisrc_event_type_to_event_index(response.event_type);
201 if (event_index >= 0) {
202 if(response.request_acknowledge) {
203 pending_event = &softs->pending_events[event_index];
204 pending_event->pending = true;
205 pending_event->event_type = response.event_type;
206 pending_event->event_id = response.event_id;
207 pending_event->additional_event_id = response.additional_event_id;
211 obq_ci = (obq_ci + 1) % event_q->num_elem;
214 event_q->ci_local = obq_ci;
215 PCI_MEM_PUT32(softs, event_q->ci_register_abs,
216 event_q->ci_register_offset, event_q->ci_local);
218 /*Adding events to the task queue for acknowledging*/
219 if (need_delayed_work == true) {
220 os_eventtaskqueue_enqueue(softs);
224 return PQI_STATUS_SUCCESS;
229 * Function used to send a general management request to adapter.
231 int pqisrc_submit_management_req(pqisrc_softstate_t *softs,
232 pqi_event_config_request_t *request)
234 int ret = PQI_STATUS_SUCCESS;
235 ib_queue_t *op_ib_q = &softs->op_raid_ib_q[0];
241 request->request_id = pqisrc_get_tag(&softs->taglist);
242 if (INVALID_ELEM == request->request_id) {
243 DBG_ERR("Tag not available\n");
244 ret = PQI_STATUS_FAILURE;
248 rcb = &softs->rcb[request->request_id];
249 rcb->req_pending = true;
250 rcb->tag = request->request_id;
251 /* Submit command on operational raid ib queue */
252 ret = pqisrc_submit_cmnd(softs, op_ib_q, request);
253 if (ret != PQI_STATUS_SUCCESS) {
254 DBG_ERR(" Unable to submit command\n");
258 ret = pqisrc_wait_on_condition(softs, rcb);
259 if (ret != PQI_STATUS_SUCCESS) {
260 DBG_ERR("Management request timed out !!\n");
265 pqisrc_put_tag(&softs->taglist,request->request_id);
271 pqisrc_put_tag(&softs->taglist,request->request_id);
273 DBG_FUNC(" failed OUT : %d\n", ret);
278 * Build and send the general management request.
281 pqi_event_configure(pqisrc_softstate_t *softs ,
282 pqi_event_config_request_t *request,
285 int ret = PQI_STATUS_SUCCESS;
289 request->header.comp_feature = 0x00;
290 request->header.iu_length = sizeof(pqi_event_config_request_t) -
291 PQI_REQUEST_HEADER_LENGTH; /* excluding IU header length */
293 /*Op OQ id where response to be delivered */
294 request->response_queue_id = softs->op_ob_q[0].q_id;
295 request->buffer_length = buff->size;
296 request->sg_desc.addr = buff->dma_addr;
297 request->sg_desc.length = buff->size;
298 request->sg_desc.zero = 0;
299 request->sg_desc.type = SGL_DESCRIPTOR_CODE_LAST_ALTERNATIVE_SGL_SEGMENT;
301 /* submit management req IU*/
302 ret = pqisrc_submit_management_req(softs,request);
310 DBG_FUNC("Failed OUT\n");
315 * Prepare REPORT EVENT CONFIGURATION IU to request that
316 * event configuration information be reported.
318 int pqisrc_report_event_config(pqisrc_softstate_t *softs)
322 pqi_event_config_request_t request;
323 pqi_event_config_t *event_config_p ;
324 dma_mem_t buf_report_event ;
325 /*bytes to be allocaed for report event config data-in buffer */
326 uint32_t alloc_size = sizeof(pqi_event_config_t) ;
327 memset(&request, 0 , sizeof(request));
331 memset(&buf_report_event, 0, sizeof(struct dma_mem));
332 buf_report_event.tag = "pqi_report_event_buf" ;
333 buf_report_event.size = alloc_size;
334 buf_report_event.align = PQISRC_DEFAULT_DMA_ALIGN;
336 /* allocate memory */
337 ret = os_dma_mem_alloc(softs, &buf_report_event);
339 DBG_ERR("Failed to Allocate report event config buffer : %d\n", ret);
342 DBG_INFO("buf_report_event.dma_addr = %p \n",(void*)buf_report_event.dma_addr);
343 DBG_INFO("buf_report_event.virt_addr = %p \n",(void*)buf_report_event.virt_addr);
345 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
347 /* Event configuration */
348 ret=pqi_event_configure(softs,&request,&buf_report_event);
353 event_config_p = (pqi_event_config_t*)buf_report_event.virt_addr;
354 softs->event_config.num_event_descriptors = MIN(event_config_p->num_event_descriptors,
355 PQI_MAX_EVENT_DESCRIPTORS) ;
357 for (i=0; i < softs->event_config.num_event_descriptors ;i++){
358 softs->event_config.descriptors[i].event_type =
359 event_config_p->descriptors[i].event_type;
361 /* free the allocated memory*/
362 os_dma_mem_free(softs, &buf_report_event);
368 os_dma_mem_free(softs, &buf_report_event);
370 DBG_FUNC("Failed OUT\n");
371 return PQI_STATUS_FAILURE;
375 * Prepare SET EVENT CONFIGURATION IU to request that
376 * event configuration parameters be set.
378 int pqisrc_set_event_config(pqisrc_softstate_t *softs)
382 pqi_event_config_request_t request;
383 pqi_event_config_t *event_config_p;
384 dma_mem_t buf_set_event;
385 /*bytes to be allocaed for set event config data-out buffer */
386 uint32_t alloc_size = sizeof(pqi_event_config_t);
387 memset(&request, 0 , sizeof(request));
391 memset(&buf_set_event, 0, sizeof(struct dma_mem));
392 buf_set_event.tag = "pqi_set_event_buf";
393 buf_set_event.size = alloc_size;
394 buf_set_event.align = PQISRC_DEFAULT_DMA_ALIGN;
396 /* allocate memory */
397 ret = os_dma_mem_alloc(softs, &buf_set_event);
399 DBG_ERR("Failed to Allocate set event config buffer : %d\n", ret);
403 DBG_INFO("buf_set_event.dma_addr = %p\n",(void*)buf_set_event.dma_addr);
404 DBG_INFO("buf_set_event.virt_addr = %p\n",(void*)buf_set_event.virt_addr);
406 request.header.iu_type = PQI_REQUEST_IU_SET_EVENT_CONFIG;
407 request.iu_specific.global_event_oq_id = softs->event_q.q_id;
409 /*pointer to data-out buffer*/
411 event_config_p = (pqi_event_config_t *)buf_set_event.virt_addr;
413 event_config_p->num_event_descriptors = softs->event_config.num_event_descriptors;
415 for (i=0; i < softs->event_config.num_event_descriptors ; i++){
416 event_config_p->descriptors[i].event_type =
417 softs->event_config.descriptors[i].event_type;
418 if( pqisrc_event_type_to_event_index(event_config_p->descriptors[i].event_type) != -1)
419 event_config_p->descriptors[i].oq_id = softs->event_q.q_id;
421 event_config_p->descriptors[i].oq_id = 0; /* Not supported this event. */
424 /* Event configuration */
425 ret = pqi_event_configure(softs,&request,&buf_set_event);
429 os_dma_mem_free(softs, &buf_set_event);
435 os_dma_mem_free(softs, &buf_set_event);
437 DBG_FUNC("Failed OUT\n");
438 return PQI_STATUS_FAILURE;