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;
113 pending_event = &softs->pending_events[0];
114 for (i=0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
115 if (pending_event->pending == true) {
116 pending_event->pending = false;
117 pqisrc_acknowledge_event(softs, pending_event);
122 /* Rescan devices except for heartbeat event */
123 if ((pqisrc_rescan_devices(softs)) != PQI_STATUS_SUCCESS) {
124 DBG_ERR(" Failed to Re-Scan devices\n ");
131 * Get event index from event type to validate the type of event.
134 pqisrc_event_type_to_event_index(unsigned event_type)
138 switch (event_type) {
139 case PQI_EVENT_TYPE_HOTPLUG:
140 index = PQI_EVENT_HOTPLUG;
142 case PQI_EVENT_TYPE_HARDWARE:
143 index = PQI_EVENT_HARDWARE;
145 case PQI_EVENT_TYPE_PHYSICAL_DEVICE:
146 index = PQI_EVENT_PHYSICAL_DEVICE;
148 case PQI_EVENT_TYPE_LOGICAL_DEVICE:
149 index = PQI_EVENT_LOGICAL_DEVICE;
151 case PQI_EVENT_TYPE_AIO_STATE_CHANGE:
152 index = PQI_EVENT_AIO_STATE_CHANGE;
154 case PQI_EVENT_TYPE_AIO_CONFIG_CHANGE:
155 index = PQI_EVENT_AIO_CONFIG_CHANGE;
166 * Function used to process the events supported by the adapter.
169 pqisrc_process_event_intr_src(pqisrc_softstate_t *softs,int obq_id)
171 uint32_t obq_pi,obq_ci;
172 pqi_event_response_t response;
174 struct pqi_event *pending_event;
175 boolean_t need_delayed_work = false;
179 OS_ATOMIC64_INC(softs, num_intrs);
181 event_q = &softs->event_q;
182 obq_ci = event_q->ci_local;
183 obq_pi = *(event_q->pi_virt_addr);
184 DBG_INFO("Initial Event_q ci : %d Event_q pi : %d\n", obq_ci, obq_pi);
188 DBG_INFO("queue_id : %d ci : %d pi : %d\n",obq_id, obq_ci, obq_pi);
189 if (obq_pi == obq_ci)
192 need_delayed_work = true;
194 /* Copy the response */
195 memcpy(&response, event_q->array_virt_addr + (obq_ci * event_q->elem_size),
196 sizeof(pqi_event_response_t));
197 DBG_INFO("response.header.iu_type : 0x%x \n", response.header.iu_type);
198 DBG_INFO("response.event_type : 0x%x \n", response.event_type);
200 event_index = pqisrc_event_type_to_event_index(response.event_type);
202 if (event_index >= 0) {
203 if(response.request_acknowledge) {
204 pending_event = &softs->pending_events[event_index];
205 pending_event->pending = true;
206 pending_event->event_type = response.event_type;
207 pending_event->event_id = response.event_id;
208 pending_event->additional_event_id = response.additional_event_id;
212 obq_ci = (obq_ci + 1) % event_q->num_elem;
215 event_q->ci_local = obq_ci;
216 PCI_MEM_PUT32(softs, event_q->ci_register_abs,
217 event_q->ci_register_offset, event_q->ci_local);
219 /*Adding events to the task queue for acknowledging*/
220 if (need_delayed_work == true) {
221 os_eventtaskqueue_enqueue(softs);
225 return PQI_STATUS_SUCCESS;
231 * Function used to send a general management request to adapter.
233 int pqisrc_submit_management_req(pqisrc_softstate_t *softs,
234 pqi_event_config_request_t *request)
236 int ret = PQI_STATUS_SUCCESS;
237 ib_queue_t *op_ib_q = &softs->op_raid_ib_q[0];
243 request->request_id = pqisrc_get_tag(&softs->taglist);
244 if (INVALID_ELEM == request->request_id) {
245 DBG_ERR("Tag not available\n");
246 ret = PQI_STATUS_FAILURE;
250 rcb = &softs->rcb[request->request_id];
251 rcb->req_pending = true;
252 rcb->tag = request->request_id;
253 /* Submit command on operational raid ib queue */
254 ret = pqisrc_submit_cmnd(softs, op_ib_q, request);
255 if (ret != PQI_STATUS_SUCCESS) {
256 DBG_ERR(" Unable to submit command\n");
260 ret = pqisrc_wait_on_condition(softs, rcb);
261 if (ret != PQI_STATUS_SUCCESS) {
262 DBG_ERR("Management request timed out !!\n");
267 pqisrc_put_tag(&softs->taglist,request->request_id);
273 pqisrc_put_tag(&softs->taglist,request->request_id);
275 DBG_FUNC(" failed OUT : %d\n", ret);
280 * Build and send the general management request.
283 pqi_event_configure(pqisrc_softstate_t *softs ,
284 pqi_event_config_request_t *request,
287 int ret = PQI_STATUS_SUCCESS;
291 request->header.comp_feature = 0x00;
292 request->header.iu_length = sizeof(pqi_event_config_request_t) -
293 PQI_REQUEST_HEADER_LENGTH; /* excluding IU header length */
295 /*Op OQ id where response to be delivered */
296 request->response_queue_id = softs->op_ob_q[0].q_id;
297 request->buffer_length = buff->size;
298 request->sg_desc.addr = buff->dma_addr;
299 request->sg_desc.length = buff->size;
300 request->sg_desc.zero = 0;
301 request->sg_desc.type = SGL_DESCRIPTOR_CODE_LAST_ALTERNATIVE_SGL_SEGMENT;
303 /* submit management req IU*/
304 ret = pqisrc_submit_management_req(softs,request);
313 DBG_FUNC("Failed OUT\n");
318 * Prepare REPORT EVENT CONFIGURATION IU to request that
319 * event configuration information be reported.
321 int pqisrc_report_event_config(pqisrc_softstate_t *softs)
325 pqi_event_config_request_t request;
326 pqi_event_config_t *event_config_p ;
327 dma_mem_t buf_report_event ;
328 /*bytes to be allocaed for report event config data-in buffer */
329 uint32_t alloc_size = sizeof(pqi_event_config_t) ;
330 memset(&request, 0 , sizeof(request));
334 memset(&buf_report_event, 0, sizeof(struct dma_mem));
335 buf_report_event.tag = "pqi_report_event_buf" ;
336 buf_report_event.size = alloc_size;
337 buf_report_event.align = PQISRC_DEFAULT_DMA_ALIGN;
339 /* allocate memory */
340 ret = os_dma_mem_alloc(softs, &buf_report_event);
342 DBG_ERR("Failed to Allocate report event config buffer : %d\n", ret);
345 DBG_INFO("buf_report_event.dma_addr = %p \n",(void*)buf_report_event.dma_addr);
346 DBG_INFO("buf_report_event.virt_addr = %p \n",(void*)buf_report_event.virt_addr);
348 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
350 /* Event configuration */
351 ret=pqi_event_configure(softs,&request,&buf_report_event);
356 event_config_p = (pqi_event_config_t*)buf_report_event.virt_addr;
357 softs->event_config.num_event_descriptors = MIN(event_config_p->num_event_descriptors,
358 PQI_MAX_EVENT_DESCRIPTORS) ;
360 for (i=0; i < softs->event_config.num_event_descriptors ;i++){
361 softs->event_config.descriptors[i].event_type =
362 event_config_p->descriptors[i].event_type;
364 /* free the allocated memory*/
365 os_dma_mem_free(softs, &buf_report_event);
371 os_dma_mem_free(softs, &buf_report_event);
373 DBG_FUNC("Failed OUT\n");
374 return PQI_STATUS_FAILURE;
378 * Prepare SET EVENT CONFIGURATION IU to request that
379 * event configuration parameters be set.
381 int pqisrc_set_event_config(pqisrc_softstate_t *softs)
385 pqi_event_config_request_t request;
386 pqi_event_config_t *event_config_p;
387 dma_mem_t buf_set_event;
388 /*bytes to be allocaed for set event config data-out buffer */
389 uint32_t alloc_size = sizeof(pqi_event_config_t);
390 memset(&request, 0 , sizeof(request));
394 memset(&buf_set_event, 0, sizeof(struct dma_mem));
395 buf_set_event.tag = "pqi_set_event_buf";
396 buf_set_event.size = alloc_size;
397 buf_set_event.align = PQISRC_DEFAULT_DMA_ALIGN;
399 /* allocate memory */
400 ret = os_dma_mem_alloc(softs, &buf_set_event);
402 DBG_ERR("Failed to Allocate set event config buffer : %d\n", ret);
406 DBG_INFO("buf_set_event.dma_addr = %p\n",(void*)buf_set_event.dma_addr);
407 DBG_INFO("buf_set_event.virt_addr = %p\n",(void*)buf_set_event.virt_addr);
409 request.header.iu_type = PQI_REQUEST_IU_SET_EVENT_CONFIG;
410 request.iu_specific.global_event_oq_id = softs->event_q.q_id;
412 /*pointer to data-out buffer*/
414 event_config_p = (pqi_event_config_t *)buf_set_event.virt_addr;
416 event_config_p->num_event_descriptors = softs->event_config.num_event_descriptors;
419 for (i=0; i < softs->event_config.num_event_descriptors ; i++){
420 event_config_p->descriptors[i].event_type =
421 softs->event_config.descriptors[i].event_type;
422 if( pqisrc_event_type_to_event_index(event_config_p->descriptors[i].event_type) != -1)
423 event_config_p->descriptors[i].oq_id = softs->event_q.q_id;
425 event_config_p->descriptors[i].oq_id = 0; /* Not supported this event. */
429 /* Event configuration */
430 ret = pqi_event_configure(softs,&request,&buf_set_event);
434 os_dma_mem_free(softs, &buf_set_event);
440 os_dma_mem_free(softs, &buf_set_event);
442 DBG_FUNC("Failed OUT\n");
443 return PQI_STATUS_FAILURE;