1 /*- 2 * Copyright 2016-2021 Microchip Technology, Inc. and/or its subsidiaries. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 /* $FreeBSD$ */ 27 28 #include"smartpqi_includes.h" 29 30 /* 31 * Function to rescan the devices connected to adapter. 32 */ 33 int 34 pqisrc_rescan_devices(pqisrc_softstate_t *softs) 35 { 36 int ret; 37 38 DBG_FUNC("IN\n"); 39 40 os_sema_lock(&softs->scan_lock); 41 42 ret = pqisrc_scan_devices(softs); 43 44 os_sema_unlock(&softs->scan_lock); 45 46 DBG_FUNC("OUT\n"); 47 48 return ret; 49 } 50 51 void 52 pqisrc_wait_for_rescan_complete(pqisrc_softstate_t *softs) 53 { 54 os_sema_lock(&softs->scan_lock); 55 os_sema_unlock(&softs->scan_lock); 56 } 57 58 /* 59 * Subroutine to acknowledge the events processed by the driver to the adapter. 60 */ 61 static void 62 pqisrc_acknowledge_event(pqisrc_softstate_t *softs, 63 struct pqi_event *event) 64 { 65 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)); 70 71 DBG_FUNC("IN\n"); 72 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; 79 80 /* Submit Event Acknowledge */ 81 82 pqisrc_submit_cmnd(softs, ib_q, &request); 83 84 /* 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. 89 */ 90 91 COND_WAIT(((ib_q->pi_local) == *(ib_q->ci_virt_addr)), tmo); 92 if (tmo <= 0) { 93 DBG_ERR("wait for event acknowledge timed out\n"); 94 DBG_ERR("tmo : %d\n",tmo); 95 } 96 97 DBG_FUNC(" OUT\n"); 98 } 99 100 /* 101 * Acknowledge processed events to the adapter. 102 */ 103 void 104 pqisrc_ack_all_events(void *arg1) 105 { 106 int i; 107 struct pqi_event *pending_event; 108 pqisrc_softstate_t *softs = (pqisrc_softstate_t*)arg1; 109 110 DBG_FUNC(" IN\n"); 111 112 113 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); 118 } 119 pending_event++; 120 } 121 122 /* Rescan devices except for heartbeat event */ 123 if ((pqisrc_rescan_devices(softs)) != PQI_STATUS_SUCCESS) { 124 DBG_ERR(" Failed to Re-Scan devices\n "); 125 } 126 DBG_FUNC(" OUT\n"); 127 128 } 129 130 /* 131 * Get event index from event type to validate the type of event. 132 */ 133 static int 134 pqisrc_event_type_to_event_index(unsigned event_type) 135 { 136 int index; 137 138 switch (event_type) { 139 case PQI_EVENT_TYPE_HOTPLUG: 140 index = PQI_EVENT_HOTPLUG; 141 break; 142 case PQI_EVENT_TYPE_HARDWARE: 143 index = PQI_EVENT_HARDWARE; 144 break; 145 case PQI_EVENT_TYPE_PHYSICAL_DEVICE: 146 index = PQI_EVENT_PHYSICAL_DEVICE; 147 break; 148 case PQI_EVENT_TYPE_LOGICAL_DEVICE: 149 index = PQI_EVENT_LOGICAL_DEVICE; 150 break; 151 case PQI_EVENT_TYPE_AIO_STATE_CHANGE: 152 index = PQI_EVENT_AIO_STATE_CHANGE; 153 break; 154 case PQI_EVENT_TYPE_AIO_CONFIG_CHANGE: 155 index = PQI_EVENT_AIO_CONFIG_CHANGE; 156 break; 157 default: 158 index = -1; 159 break; 160 } 161 162 return index; 163 } 164 165 /* 166 * Function used to process the events supported by the adapter. 167 */ 168 int 169 pqisrc_process_event_intr_src(pqisrc_softstate_t *softs,int obq_id) 170 { 171 uint32_t obq_pi,obq_ci; 172 pqi_event_response_t response; 173 ob_queue_t *event_q; 174 struct pqi_event *pending_event; 175 boolean_t need_delayed_work = false; 176 177 DBG_FUNC(" IN\n"); 178 179 event_q = &softs->event_q; 180 obq_ci = event_q->ci_local; 181 obq_pi = *(event_q->pi_virt_addr); 182 DBG_INFO("Initial Event_q ci : %d Event_q pi : %d\n", obq_ci, obq_pi); 183 184 while(1) { 185 int event_index; 186 DBG_INFO("queue_id : %d ci : %d pi : %d\n",obq_id, obq_ci, obq_pi); 187 if (obq_pi == obq_ci) 188 break; 189 190 need_delayed_work = true; 191 192 /* Copy the response */ 193 memcpy(&response, event_q->array_virt_addr + (obq_ci * event_q->elem_size), 194 sizeof(pqi_event_response_t)); 195 DBG_INFO("response.header.iu_type : 0x%x \n", response.header.iu_type); 196 DBG_INFO("response.event_type : 0x%x \n", response.event_type); 197 198 event_index = pqisrc_event_type_to_event_index(response.event_type); 199 200 if (event_index >= 0) { 201 if(response.request_acknowledge) { 202 pending_event = &softs->pending_events[event_index]; 203 pending_event->pending = true; 204 pending_event->event_type = response.event_type; 205 pending_event->event_id = response.event_id; 206 pending_event->additional_event_id = response.additional_event_id; 207 } 208 } 209 210 obq_ci = (obq_ci + 1) % event_q->num_elem; 211 } 212 /* Update CI */ 213 event_q->ci_local = obq_ci; 214 PCI_MEM_PUT32(softs, event_q->ci_register_abs, 215 event_q->ci_register_offset, event_q->ci_local); 216 217 /*Adding events to the task queue for acknowledging*/ 218 if (need_delayed_work == true) { 219 os_eventtaskqueue_enqueue(softs); 220 } 221 222 DBG_FUNC("OUT"); 223 return PQI_STATUS_SUCCESS; 224 225 226 } 227 228 /* 229 * Function used to send a general management request to adapter. 230 */ 231 int 232 pqisrc_submit_management_req(pqisrc_softstate_t *softs, 233 pqi_event_config_request_t *request) 234 { 235 int ret = PQI_STATUS_SUCCESS; 236 ib_queue_t *op_ib_q = &softs->op_raid_ib_q[0]; 237 rcb_t *rcb = NULL; 238 239 DBG_FUNC(" IN\n"); 240 241 /* Get the tag */ 242 request->request_id = pqisrc_get_tag(&softs->taglist); 243 if (INVALID_ELEM == request->request_id) { 244 DBG_ERR("Tag not available\n"); 245 ret = PQI_STATUS_FAILURE; 246 goto err_out; 247 } 248 249 rcb = &softs->rcb[request->request_id]; 250 rcb->req_pending = true; 251 rcb->tag = request->request_id; 252 /* Submit command on operational raid ib queue */ 253 ret = pqisrc_submit_cmnd(softs, op_ib_q, request); 254 if (ret != PQI_STATUS_SUCCESS) { 255 DBG_ERR(" Unable to submit command\n"); 256 goto err_cmd; 257 } 258 259 ret = pqisrc_wait_on_condition(softs, rcb, PQISRC_CMD_TIMEOUT); 260 if (ret != PQI_STATUS_SUCCESS) { 261 DBG_ERR("Management request timed out !!\n"); 262 goto err_cmd; 263 } 264 265 os_reset_rcb(rcb); 266 pqisrc_put_tag(&softs->taglist,request->request_id); 267 DBG_FUNC("OUT\n"); 268 return ret; 269 270 err_cmd: 271 os_reset_rcb(rcb); 272 pqisrc_put_tag(&softs->taglist,request->request_id); 273 err_out: 274 DBG_FUNC(" failed OUT : %d\n", ret); 275 return ret; 276 } 277 278 /* 279 * Build and send the general management request. 280 */ 281 static int 282 pqi_event_configure(pqisrc_softstate_t *softs , 283 pqi_event_config_request_t *request, 284 dma_mem_t *buff) 285 { 286 int ret = PQI_STATUS_SUCCESS; 287 288 DBG_FUNC(" IN\n"); 289 290 request->header.comp_feature = 0x00; 291 request->header.iu_length = sizeof(pqi_event_config_request_t) - 292 PQI_REQUEST_HEADER_LENGTH; /* excluding IU header length */ 293 294 /*Op OQ id where response to be delivered */ 295 request->response_queue_id = softs->op_ob_q[0].q_id; 296 request->buffer_length = buff->size; 297 request->sg_desc.addr = buff->dma_addr; 298 request->sg_desc.length = buff->size; 299 request->sg_desc.zero = 0; 300 request->sg_desc.type = SGL_DESCRIPTOR_CODE_LAST_ALTERNATIVE_SGL_SEGMENT; 301 302 /* submit management req IU*/ 303 ret = pqisrc_submit_management_req(softs,request); 304 if(ret) 305 goto err_out; 306 307 308 DBG_FUNC(" OUT\n"); 309 return ret; 310 311 err_out: 312 DBG_FUNC("Failed OUT\n"); 313 return ret; 314 } 315 316 /* 317 * Prepare REPORT EVENT CONFIGURATION IU to request that 318 * event configuration information be reported. 319 */ 320 int 321 pqisrc_report_event_config(pqisrc_softstate_t *softs) 322 { 323 324 int ret,i ; 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)); 331 332 DBG_FUNC(" IN\n"); 333 334 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; 338 339 /* allocate memory */ 340 ret = os_dma_mem_alloc(softs, &buf_report_event); 341 if (ret) { 342 DBG_ERR("Failed to Allocate report event config buffer : %d\n", ret); 343 goto err_out; 344 } 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); 347 348 request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG; 349 350 /* Event configuration */ 351 ret=pqi_event_configure(softs,&request,&buf_report_event); 352 if(ret) 353 goto free_mem; 354 355 356 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) ; 359 360 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; 363 } 364 /* free the allocated memory*/ 365 os_dma_mem_free(softs, &buf_report_event); 366 367 DBG_FUNC(" OUT\n"); 368 return ret; 369 370 free_mem: 371 os_dma_mem_free(softs, &buf_report_event); 372 err_out: 373 DBG_FUNC("Failed OUT\n"); 374 return PQI_STATUS_FAILURE; 375 } 376 377 /* 378 * Prepare SET EVENT CONFIGURATION IU to request that 379 * event configuration parameters be set. 380 */ 381 int 382 pqisrc_set_event_config(pqisrc_softstate_t *softs) 383 { 384 385 int ret,i; 386 pqi_event_config_request_t request; 387 pqi_event_config_t *event_config_p; 388 dma_mem_t buf_set_event; 389 /*bytes to be allocaed for set event config data-out buffer */ 390 uint32_t alloc_size = sizeof(pqi_event_config_t); 391 memset(&request, 0 , sizeof(request)); 392 393 DBG_FUNC(" IN\n"); 394 395 memset(&buf_set_event, 0, sizeof(struct dma_mem)); 396 buf_set_event.tag = "pqi_set_event_buf"; 397 buf_set_event.size = alloc_size; 398 buf_set_event.align = PQISRC_DEFAULT_DMA_ALIGN; 399 400 /* allocate memory */ 401 ret = os_dma_mem_alloc(softs, &buf_set_event); 402 if (ret) { 403 DBG_ERR("Failed to Allocate set event config buffer : %d\n", ret); 404 goto err_out; 405 } 406 407 DBG_INFO("buf_set_event.dma_addr = %p\n",(void*)buf_set_event.dma_addr); 408 DBG_INFO("buf_set_event.virt_addr = %p\n",(void*)buf_set_event.virt_addr); 409 410 request.header.iu_type = PQI_REQUEST_IU_SET_EVENT_CONFIG; 411 request.iu_specific.global_event_oq_id = softs->event_q.q_id; 412 413 /*pointer to data-out buffer*/ 414 415 event_config_p = (pqi_event_config_t *)buf_set_event.virt_addr; 416 417 event_config_p->num_event_descriptors = softs->event_config.num_event_descriptors; 418 419 420 for (i=0; i < softs->event_config.num_event_descriptors ; i++){ 421 event_config_p->descriptors[i].event_type = 422 softs->event_config.descriptors[i].event_type; 423 if( pqisrc_event_type_to_event_index(event_config_p->descriptors[i].event_type) != -1) 424 event_config_p->descriptors[i].oq_id = softs->event_q.q_id; 425 else 426 event_config_p->descriptors[i].oq_id = 0; /* Not supported this event. */ 427 428 429 } 430 /* Event configuration */ 431 ret = pqi_event_configure(softs,&request,&buf_set_event); 432 if(ret) 433 goto free_mem; 434 435 os_dma_mem_free(softs, &buf_set_event); 436 437 DBG_FUNC(" OUT\n"); 438 return ret; 439 440 free_mem: 441 os_dma_mem_free(softs, &buf_set_event); 442 err_out: 443 DBG_FUNC("Failed OUT\n"); 444 return PQI_STATUS_FAILURE; 445 446 } 447