1 /* 2 * QLOGIC LINUX SOFTWARE 3 * 4 * QLogic ISP2x00 device driver for Linux 2.6.x 5 * Copyright (C) 2003-2004 QLogic Corporation 6 * (www.qlogic.com) 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2, or (at your option) any 11 * later version. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 */ 19 #include "qla_def.h" 20 21 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 22 static void qla2x00_async_event(scsi_qla_host_t *, uint32_t); 23 static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t); 24 void qla2x00_process_response_queue(struct scsi_qla_host *); 25 static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *); 26 static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *); 27 static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); 28 static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *); 29 30 /** 31 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 32 * @irq: 33 * @dev_id: SCSI driver HA context 34 * @regs: 35 * 36 * Called by system whenever the host adapter generates an interrupt. 37 * 38 * Returns handled flag. 39 */ 40 irqreturn_t 41 qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs) 42 { 43 scsi_qla_host_t *ha; 44 device_reg_t __iomem *reg; 45 int status; 46 unsigned long flags; 47 unsigned long iter; 48 uint32_t mbx; 49 50 ha = (scsi_qla_host_t *) dev_id; 51 if (!ha) { 52 printk(KERN_INFO 53 "%s(): NULL host pointer\n", __func__); 54 return (IRQ_NONE); 55 } 56 57 reg = ha->iobase; 58 status = 0; 59 60 spin_lock_irqsave(&ha->hardware_lock, flags); 61 for (iter = 50; iter--; ) { 62 if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 63 break; 64 65 if (RD_REG_WORD(®->semaphore) & BIT_0) { 66 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 67 RD_REG_WORD(®->hccr); 68 69 /* Get mailbox data. */ 70 mbx = RD_MAILBOX_REG(ha, reg, 0); 71 if (mbx > 0x3fff && mbx < 0x8000) { 72 qla2x00_mbx_completion(ha, (uint16_t)mbx); 73 status |= MBX_INTERRUPT; 74 } else if (mbx > 0x7fff && mbx < 0xc000) { 75 qla2x00_async_event(ha, mbx); 76 } else { 77 /*EMPTY*/ 78 DEBUG2(printk("scsi(%ld): Unrecognized " 79 "interrupt type (%d)\n", 80 ha->host_no, mbx)); 81 } 82 /* Release mailbox registers. */ 83 WRT_REG_WORD(®->semaphore, 0); 84 RD_REG_WORD(®->semaphore); 85 } else { 86 qla2x00_process_response_queue(ha); 87 88 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 89 RD_REG_WORD(®->hccr); 90 } 91 } 92 spin_unlock_irqrestore(&ha->hardware_lock, flags); 93 94 ha->last_irq_cpu = _smp_processor_id(); 95 ha->total_isr_cnt++; 96 97 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 98 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 99 spin_lock_irqsave(&ha->mbx_reg_lock, flags); 100 101 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 102 up(&ha->mbx_intr_sem); 103 104 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); 105 } 106 107 return (IRQ_HANDLED); 108 } 109 110 /** 111 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 112 * @irq: 113 * @dev_id: SCSI driver HA context 114 * @regs: 115 * 116 * Called by system whenever the host adapter generates an interrupt. 117 * 118 * Returns handled flag. 119 */ 120 irqreturn_t 121 qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs) 122 { 123 scsi_qla_host_t *ha; 124 device_reg_t __iomem *reg; 125 int status; 126 unsigned long flags; 127 unsigned long iter; 128 uint32_t stat; 129 uint32_t mbx; 130 uint16_t hccr; 131 132 ha = (scsi_qla_host_t *) dev_id; 133 if (!ha) { 134 printk(KERN_INFO 135 "%s(): NULL host pointer\n", __func__); 136 return (IRQ_NONE); 137 } 138 139 reg = ha->iobase; 140 status = 0; 141 142 spin_lock_irqsave(&ha->hardware_lock, flags); 143 for (iter = 50; iter--; ) { 144 stat = RD_REG_DWORD(®->u.isp2300.host_status); 145 if (stat & HSR_RISC_PAUSED) { 146 hccr = RD_REG_WORD(®->hccr); 147 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 148 qla_printk(KERN_INFO, ha, 149 "Parity error -- HCCR=%x.\n", hccr); 150 else 151 qla_printk(KERN_INFO, ha, 152 "RISC paused -- HCCR=%x\n", hccr); 153 154 /* 155 * Issue a "HARD" reset in order for the RISC 156 * interrupt bit to be cleared. Schedule a big 157 * hammmer to get out of the RISC PAUSED state. 158 */ 159 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 160 RD_REG_WORD(®->hccr); 161 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 162 break; 163 } else if ((stat & HSR_RISC_INT) == 0) 164 break; 165 166 mbx = MSW(stat); 167 switch (stat & 0xff) { 168 case 0x13: 169 qla2x00_process_response_queue(ha); 170 break; 171 case 0x1: 172 case 0x2: 173 case 0x10: 174 case 0x11: 175 qla2x00_mbx_completion(ha, (uint16_t)mbx); 176 status |= MBX_INTERRUPT; 177 178 /* Release mailbox registers. */ 179 WRT_REG_WORD(®->semaphore, 0); 180 break; 181 case 0x12: 182 qla2x00_async_event(ha, mbx); 183 break; 184 case 0x15: 185 mbx = mbx << 16 | MBA_CMPLT_1_16BIT; 186 qla2x00_async_event(ha, mbx); 187 break; 188 case 0x16: 189 mbx = mbx << 16 | MBA_SCSI_COMPLETION; 190 qla2x00_async_event(ha, mbx); 191 break; 192 default: 193 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 194 "(%d)\n", 195 ha->host_no, stat & 0xff)); 196 break; 197 } 198 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 199 RD_REG_WORD_RELAXED(®->hccr); 200 } 201 spin_unlock_irqrestore(&ha->hardware_lock, flags); 202 203 ha->last_irq_cpu = _smp_processor_id(); 204 ha->total_isr_cnt++; 205 206 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 207 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 208 spin_lock_irqsave(&ha->mbx_reg_lock, flags); 209 210 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 211 up(&ha->mbx_intr_sem); 212 213 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags); 214 } 215 216 return (IRQ_HANDLED); 217 } 218 219 /** 220 * qla2x00_mbx_completion() - Process mailbox command completions. 221 * @ha: SCSI driver HA context 222 * @mb0: Mailbox0 register 223 */ 224 static void 225 qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) 226 { 227 uint16_t cnt; 228 uint16_t __iomem *wptr; 229 device_reg_t __iomem *reg = ha->iobase; 230 231 /* Load return mailbox registers. */ 232 ha->flags.mbox_int = 1; 233 ha->mailbox_out[0] = mb0; 234 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 235 236 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 237 if (IS_QLA2200(ha) && cnt == 8) 238 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 239 if (cnt == 4 || cnt == 5) 240 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 241 else 242 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 243 244 wptr++; 245 } 246 247 if (ha->mcp) { 248 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 249 __func__, ha->host_no, ha->mcp->mb[0])); 250 } else { 251 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 252 __func__, ha->host_no)); 253 } 254 } 255 256 /** 257 * qla2x00_async_event() - Process aynchronous events. 258 * @ha: SCSI driver HA context 259 * @mb0: Mailbox0 register 260 */ 261 static void 262 qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx) 263 { 264 static char *link_speeds[5] = { "1", "2", "4", "?", "10" }; 265 char *link_speed; 266 uint16_t mb[4]; 267 uint16_t handle_cnt; 268 uint16_t cnt; 269 uint32_t handles[5]; 270 device_reg_t __iomem *reg = ha->iobase; 271 uint32_t rscn_entry, host_pid; 272 uint8_t rscn_queue_index; 273 274 /* Setup to process RIO completion. */ 275 handle_cnt = 0; 276 mb[0] = LSW(mbx); 277 switch (mb[0]) { 278 case MBA_SCSI_COMPLETION: 279 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 280 handles[0] = le32_to_cpu( 281 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | 282 RD_MAILBOX_REG(ha, reg, 1)); 283 else 284 handles[0] = le32_to_cpu( 285 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | 286 MSW(mbx)); 287 handle_cnt = 1; 288 break; 289 case MBA_CMPLT_1_16BIT: 290 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 291 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); 292 else 293 handles[0] = MSW(mbx); 294 handle_cnt = 1; 295 mb[0] = MBA_SCSI_COMPLETION; 296 break; 297 case MBA_CMPLT_2_16BIT: 298 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); 299 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); 300 handle_cnt = 2; 301 mb[0] = MBA_SCSI_COMPLETION; 302 break; 303 case MBA_CMPLT_3_16BIT: 304 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); 305 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); 306 handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); 307 handle_cnt = 3; 308 mb[0] = MBA_SCSI_COMPLETION; 309 break; 310 case MBA_CMPLT_4_16BIT: 311 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); 312 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); 313 handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); 314 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 315 handle_cnt = 4; 316 mb[0] = MBA_SCSI_COMPLETION; 317 break; 318 case MBA_CMPLT_5_16BIT: 319 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1); 320 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2); 321 handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3); 322 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 323 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 324 handle_cnt = 5; 325 mb[0] = MBA_SCSI_COMPLETION; 326 break; 327 case MBA_CMPLT_2_32BIT: 328 handles[0] = le32_to_cpu( 329 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) | 330 RD_MAILBOX_REG(ha, reg, 1)); 331 handles[1] = le32_to_cpu( 332 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 333 RD_MAILBOX_REG(ha, reg, 6)); 334 handle_cnt = 2; 335 mb[0] = MBA_SCSI_COMPLETION; 336 break; 337 default: 338 break; 339 } 340 341 switch (mb[0]) { 342 case MBA_SCSI_COMPLETION: /* Fast Post */ 343 if (!ha->flags.online) 344 break; 345 346 for (cnt = 0; cnt < handle_cnt; cnt++) 347 qla2x00_process_completed_request(ha, handles[cnt]); 348 break; 349 350 case MBA_RESET: /* Reset */ 351 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no)); 352 353 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 354 break; 355 356 case MBA_SYSTEM_ERR: /* System Error */ 357 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 358 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 359 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 360 361 qla_printk(KERN_INFO, ha, 362 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", 363 mb[1], mb[2], mb[3]); 364 365 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 366 qla2100_fw_dump(ha, 1); 367 else 368 qla2300_fw_dump(ha, 1); 369 370 if (mb[1] == 0) { 371 qla_printk(KERN_INFO, ha, 372 "Unrecoverable Hardware Error: adapter marked " 373 "OFFLINE!\n"); 374 ha->flags.online = 0; 375 } else 376 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 377 break; 378 379 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 380 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n", 381 ha->host_no)); 382 qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n"); 383 384 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 385 break; 386 387 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 388 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", 389 ha->host_no)); 390 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); 391 392 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 393 break; 394 395 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 396 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", 397 ha->host_no)); 398 break; 399 400 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 401 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 402 403 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no, 404 mb[1])); 405 qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]); 406 407 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 408 atomic_set(&ha->loop_state, LOOP_DOWN); 409 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 410 qla2x00_mark_all_devices_lost(ha); 411 } 412 413 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); 414 415 ha->flags.management_server_logged_in = 0; 416 417 /* Update AEN queue. */ 418 qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL); 419 420 ha->total_lip_cnt++; 421 break; 422 423 case MBA_LOOP_UP: /* Loop Up Event */ 424 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 425 426 ha->link_data_rate = 0; 427 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 428 link_speed = link_speeds[0]; 429 } else { 430 link_speed = link_speeds[3]; 431 if (mb[1] < 5) 432 link_speed = link_speeds[mb[1]]; 433 ha->link_data_rate = mb[1]; 434 } 435 436 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", 437 ha->host_no, link_speed)); 438 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", 439 link_speed); 440 441 ha->flags.management_server_logged_in = 0; 442 443 /* Update AEN queue. */ 444 qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL); 445 break; 446 447 case MBA_LOOP_DOWN: /* Loop Down Event */ 448 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n", 449 ha->host_no)); 450 qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n"); 451 452 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 453 atomic_set(&ha->loop_state, LOOP_DOWN); 454 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 455 ha->device_flags |= DFLG_NO_CABLE; 456 qla2x00_mark_all_devices_lost(ha); 457 } 458 459 ha->flags.management_server_logged_in = 0; 460 ha->link_data_rate = 0; 461 462 /* Update AEN queue. */ 463 qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL); 464 break; 465 466 case MBA_LIP_RESET: /* LIP reset occurred */ 467 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 468 469 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", 470 ha->host_no, mb[1])); 471 qla_printk(KERN_INFO, ha, 472 "LIP reset occured (%x).\n", mb[1]); 473 474 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 475 atomic_set(&ha->loop_state, LOOP_DOWN); 476 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 477 qla2x00_mark_all_devices_lost(ha); 478 } 479 480 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 481 482 ha->operating_mode = LOOP; 483 ha->flags.management_server_logged_in = 0; 484 485 /* Update AEN queue. */ 486 qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL); 487 488 ha->total_lip_cnt++; 489 break; 490 491 case MBA_POINT_TO_POINT: /* Point-to-Point */ 492 if (IS_QLA2100(ha)) 493 break; 494 495 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n", 496 ha->host_no)); 497 498 /* 499 * Until there's a transition from loop down to loop up, treat 500 * this as loop down only. 501 */ 502 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 503 atomic_set(&ha->loop_state, LOOP_DOWN); 504 if (!atomic_read(&ha->loop_down_timer)) 505 atomic_set(&ha->loop_down_timer, 506 LOOP_DOWN_TIME); 507 qla2x00_mark_all_devices_lost(ha); 508 } 509 510 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { 511 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 512 } 513 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); 514 break; 515 516 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 517 if (IS_QLA2100(ha)) 518 break; 519 520 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 521 522 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " 523 "received.\n", 524 ha->host_no)); 525 qla_printk(KERN_INFO, ha, 526 "Configuration change detected: value=%x.\n", mb[1]); 527 528 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 529 atomic_set(&ha->loop_state, LOOP_DOWN); 530 if (!atomic_read(&ha->loop_down_timer)) 531 atomic_set(&ha->loop_down_timer, 532 LOOP_DOWN_TIME); 533 qla2x00_mark_all_devices_lost(ha); 534 } 535 536 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 537 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 538 break; 539 540 case MBA_PORT_UPDATE: /* Port database update */ 541 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 542 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 543 544 /* 545 * If a single remote port just logged into (or logged out of) 546 * us, create a new entry in our rscn fcports list and handle 547 * the event like an RSCN. 548 */ 549 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) && 550 !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff && 551 ((ha->operating_mode == P2P && mb[1] != 0) || 552 (ha->operating_mode != P2P && mb[1] != 553 SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) { 554 int rval; 555 fc_port_t *rscn_fcport; 556 557 /* Create new fcport for login. */ 558 rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC); 559 if (rscn_fcport) { 560 DEBUG14(printk("scsi(%ld): Port Update -- " 561 "creating RSCN fcport %p for %x/%x.\n", 562 ha->host_no, rscn_fcport, mb[1], mb[2])); 563 564 rscn_fcport->loop_id = mb[1]; 565 rscn_fcport->d_id.b24 = INVALID_PORT_ID; 566 atomic_set(&rscn_fcport->state, 567 FCS_DEVICE_LOST); 568 list_add_tail(&rscn_fcport->list, 569 &ha->rscn_fcports); 570 571 rval = qla2x00_handle_port_rscn(ha, 0, 572 rscn_fcport, 1); 573 if (rval == QLA_SUCCESS) 574 break; 575 } else { 576 DEBUG14(printk("scsi(%ld): Port Update -- " 577 "-- unable to allocate RSCN fcport " 578 "login.\n", ha->host_no)); 579 } 580 } 581 582 /* 583 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET 584 * event etc. earlier indicating loop is down) then process 585 * it. Otherwise ignore it and Wait for RSCN to come in. 586 */ 587 atomic_set(&ha->loop_down_timer, 0); 588 if (atomic_read(&ha->loop_state) != LOOP_DOWN && 589 atomic_read(&ha->loop_state) != LOOP_DEAD) { 590 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " 591 "ignored.\n", ha->host_no)); 592 break; 593 } 594 595 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 596 ha->host_no)); 597 DEBUG(printk(KERN_INFO 598 "scsi(%ld): Port database changed %04x %04x.\n", 599 ha->host_no, mb[1], mb[2])); 600 601 /* 602 * Mark all devices as missing so we will login again. 603 */ 604 atomic_set(&ha->loop_state, LOOP_UP); 605 606 qla2x00_mark_all_devices_lost(ha); 607 608 ha->flags.rscn_queue_overflow = 1; 609 610 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 611 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 612 613 /* Update AEN queue. */ 614 qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL); 615 break; 616 617 case MBA_RSCN_UPDATE: /* State Change Registration */ 618 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 619 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 620 621 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", 622 ha->host_no)); 623 DEBUG(printk(KERN_INFO 624 "scsi(%ld): RSCN database changed -- %04x %04x.\n", 625 ha->host_no, mb[1], mb[2])); 626 627 rscn_entry = (mb[1] << 16) | mb[2]; 628 host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) | 629 ha->d_id.b.al_pa; 630 if (rscn_entry == host_pid) { 631 DEBUG(printk(KERN_INFO 632 "scsi(%ld): Ignoring RSCN update to local host " 633 "port ID (%06x)\n", 634 ha->host_no, host_pid)); 635 break; 636 } 637 638 rscn_queue_index = ha->rscn_in_ptr + 1; 639 if (rscn_queue_index == MAX_RSCN_COUNT) 640 rscn_queue_index = 0; 641 if (rscn_queue_index != ha->rscn_out_ptr) { 642 ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry; 643 ha->rscn_in_ptr = rscn_queue_index; 644 } else { 645 ha->flags.rscn_queue_overflow = 1; 646 } 647 648 atomic_set(&ha->loop_state, LOOP_UPDATE); 649 atomic_set(&ha->loop_down_timer, 0); 650 ha->flags.management_server_logged_in = 0; 651 652 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 653 set_bit(RSCN_UPDATE, &ha->dpc_flags); 654 655 /* Update AEN queue. */ 656 qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]); 657 break; 658 659 /* case MBA_RIO_RESPONSE: */ 660 case MBA_ZIO_RESPONSE: 661 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n", 662 ha->host_no)); 663 DEBUG(printk(KERN_INFO 664 "scsi(%ld): [R|Z]IO update completion.\n", 665 ha->host_no)); 666 667 qla2x00_process_response_queue(ha); 668 break; 669 } 670 } 671 672 /** 673 * qla2x00_process_completed_request() - Process a Fast Post response. 674 * @ha: SCSI driver HA context 675 * @index: SRB index 676 */ 677 static void 678 qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) 679 { 680 srb_t *sp; 681 682 /* Validate handle. */ 683 if (index >= MAX_OUTSTANDING_COMMANDS) { 684 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", 685 ha->host_no, index)); 686 qla_printk(KERN_WARNING, ha, 687 "Invalid SCSI completion handle %d.\n", index); 688 689 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 690 return; 691 } 692 693 sp = ha->outstanding_cmds[index]; 694 if (sp) { 695 /* Free outstanding command slot. */ 696 ha->outstanding_cmds[index] = NULL; 697 698 if (ha->actthreads) 699 ha->actthreads--; 700 CMD_COMPL_STATUS(sp->cmd) = 0L; 701 CMD_SCSI_STATUS(sp->cmd) = 0L; 702 703 /* Save ISP completion status */ 704 sp->cmd->result = DID_OK << 16; 705 sp->fo_retry_cnt = 0; 706 qla2x00_sp_compl(ha, sp); 707 } else { 708 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", 709 ha->host_no)); 710 qla_printk(KERN_WARNING, ha, 711 "Invalid ISP SCSI completion handle\n"); 712 713 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 714 } 715 } 716 717 /** 718 * qla2x00_process_response_queue() - Process response queue entries. 719 * @ha: SCSI driver HA context 720 */ 721 void 722 qla2x00_process_response_queue(struct scsi_qla_host *ha) 723 { 724 device_reg_t __iomem *reg = ha->iobase; 725 sts_entry_t *pkt; 726 uint16_t handle_cnt; 727 uint16_t cnt; 728 729 if (!ha->flags.online) 730 return; 731 732 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { 733 pkt = (sts_entry_t *)ha->response_ring_ptr; 734 735 ha->rsp_ring_index++; 736 if (ha->rsp_ring_index == ha->response_q_length) { 737 ha->rsp_ring_index = 0; 738 ha->response_ring_ptr = ha->response_ring; 739 } else { 740 ha->response_ring_ptr++; 741 } 742 743 if (pkt->entry_status != 0) { 744 DEBUG3(printk(KERN_INFO 745 "scsi(%ld): Process error entry.\n", ha->host_no)); 746 747 qla2x00_error_entry(ha, pkt); 748 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 749 wmb(); 750 continue; 751 } 752 753 switch (pkt->entry_type) { 754 case STATUS_TYPE: 755 qla2x00_status_entry(ha, pkt); 756 break; 757 case STATUS_TYPE_21: 758 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 759 for (cnt = 0; cnt < handle_cnt; cnt++) { 760 qla2x00_process_completed_request(ha, 761 ((sts21_entry_t *)pkt)->handle[cnt]); 762 } 763 break; 764 case STATUS_TYPE_22: 765 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 766 for (cnt = 0; cnt < handle_cnt; cnt++) { 767 qla2x00_process_completed_request(ha, 768 ((sts22_entry_t *)pkt)->handle[cnt]); 769 } 770 break; 771 case STATUS_CONT_TYPE: 772 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); 773 break; 774 case MS_IOCB_TYPE: 775 qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt); 776 break; 777 case MBX_IOCB_TYPE: 778 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && 779 !IS_QLA6312(ha) && !IS_QLA6322(ha)) { 780 if (pkt->sys_define == SOURCE_ASYNC_IOCB) { 781 qla2x00_process_iodesc(ha, 782 (struct mbx_entry *)pkt); 783 } else { 784 /* MBX IOCB Type Not Supported. */ 785 DEBUG4(printk(KERN_WARNING 786 "scsi(%ld): Received unknown MBX " 787 "IOCB response pkt type=%x " 788 "source=%x entry status=%x.\n", 789 ha->host_no, pkt->entry_type, 790 pkt->sys_define, 791 pkt->entry_status)); 792 } 793 break; 794 } 795 /* Fallthrough. */ 796 default: 797 /* Type Not Supported. */ 798 DEBUG4(printk(KERN_WARNING 799 "scsi(%ld): Received unknown response pkt type %x " 800 "entry status=%x.\n", 801 ha->host_no, pkt->entry_type, pkt->entry_status)); 802 break; 803 } 804 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 805 wmb(); 806 } 807 808 /* Adjust ring index */ 809 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index); 810 } 811 812 /** 813 * qla2x00_status_entry() - Process a Status IOCB entry. 814 * @ha: SCSI driver HA context 815 * @pkt: Entry pointer 816 */ 817 static void 818 qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) 819 { 820 unsigned b, t, l; 821 srb_t *sp; 822 fc_port_t *fcport; 823 struct scsi_cmnd *cp; 824 uint16_t comp_status; 825 uint16_t scsi_status; 826 uint8_t lscsi_status; 827 int32_t resid; 828 uint8_t sense_sz = 0; 829 uint16_t rsp_info_len; 830 831 /* Fast path completion. */ 832 if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE && 833 (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) { 834 qla2x00_process_completed_request(ha, pkt->handle); 835 836 return; 837 } 838 839 /* Validate handle. */ 840 if (pkt->handle < MAX_OUTSTANDING_COMMANDS) { 841 sp = ha->outstanding_cmds[pkt->handle]; 842 ha->outstanding_cmds[pkt->handle] = NULL; 843 } else 844 sp = NULL; 845 846 if (sp == NULL) { 847 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n", 848 ha->host_no)); 849 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); 850 851 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 852 if (ha->dpc_wait && !ha->dpc_active) 853 up(ha->dpc_wait); 854 855 return; 856 } 857 cp = sp->cmd; 858 if (cp == NULL) { 859 DEBUG2(printk("scsi(%ld): Command already returned back to OS " 860 "pkt->handle=%d sp=%p sp->state:%d\n", 861 ha->host_no, pkt->handle, sp, sp->state)); 862 qla_printk(KERN_WARNING, ha, 863 "Command is NULL: already returned to OS (sp=%p)\n", sp); 864 865 return; 866 } 867 868 if (ha->actthreads) 869 ha->actthreads--; 870 871 comp_status = le16_to_cpu(pkt->comp_status); 872 /* Mask of reserved bits 12-15, before we examine the scsi status */ 873 scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK; 874 lscsi_status = scsi_status & STATUS_MASK; 875 876 CMD_ENTRY_STATUS(cp) = pkt->entry_status; 877 CMD_COMPL_STATUS(cp) = comp_status; 878 CMD_SCSI_STATUS(cp) = scsi_status; 879 880 /* Generate LU queue on cntrl, target, LUN */ 881 b = cp->device->channel; 882 t = cp->device->id; 883 l = cp->device->lun, 884 885 fcport = sp->fcport; 886 887 /* Check for any FCP transport errors. */ 888 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 889 rsp_info_len = le16_to_cpu(pkt->rsp_info_len); 890 if (rsp_info_len > 3 && pkt->rsp_info[3]) { 891 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " 892 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." 893 "retrying command\n", ha->host_no, b, t, l, 894 rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1], 895 pkt->rsp_info[2], pkt->rsp_info[3], 896 pkt->rsp_info[4], pkt->rsp_info[5], 897 pkt->rsp_info[6], pkt->rsp_info[7])); 898 899 cp->result = DID_BUS_BUSY << 16; 900 qla2x00_sp_compl(ha, sp); 901 return; 902 } 903 } 904 905 /* 906 * Based on Host and scsi status generate status code for Linux 907 */ 908 switch (comp_status) { 909 case CS_COMPLETE: 910 if (scsi_status == 0) { 911 cp->result = DID_OK << 16; 912 break; 913 } 914 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 915 resid = le32_to_cpu(pkt->residual_length); 916 cp->resid = resid; 917 CMD_RESID_LEN(cp) = resid; 918 } 919 cp->result = DID_OK << 16 | lscsi_status; 920 921 if (lscsi_status != SS_CHECK_CONDITION) 922 break; 923 924 /* 925 * Copy Sense Data into sense buffer 926 */ 927 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); 928 929 if (!(scsi_status & SS_SENSE_LEN_VALID)) 930 break; 931 932 if (le16_to_cpu(pkt->req_sense_length) < 933 sizeof(cp->sense_buffer)) 934 sense_sz = le16_to_cpu(pkt->req_sense_length); 935 else 936 sense_sz = sizeof(cp->sense_buffer); 937 938 CMD_ACTUAL_SNSLEN(cp) = sense_sz; 939 sp->request_sense_length = sense_sz; 940 sp->request_sense_ptr = cp->sense_buffer; 941 942 if (sp->request_sense_length > 32) 943 sense_sz = 32; 944 945 memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz); 946 947 sp->request_sense_ptr += sense_sz; 948 sp->request_sense_length -= sense_sz; 949 if (sp->request_sense_length != 0) 950 ha->status_srb = sp; 951 952 DEBUG5(printk("%s(): Check condition Sense data, " 953 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", 954 __func__, ha->host_no, b, t, l, cp, 955 cp->serial_number)); 956 if (sense_sz) 957 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, 958 CMD_ACTUAL_SNSLEN(cp))); 959 break; 960 961 case CS_DATA_UNDERRUN: 962 DEBUG2(printk(KERN_INFO 963 "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n", 964 ha->host_no, t, l, comp_status, scsi_status)); 965 966 resid = le32_to_cpu(pkt->residual_length); 967 if (scsi_status & SS_RESIDUAL_UNDER) { 968 cp->resid = resid; 969 CMD_RESID_LEN(cp) = resid; 970 } 971 972 /* 973 * Check to see if SCSI Status is non zero. If so report SCSI 974 * Status. 975 */ 976 if (lscsi_status != 0) { 977 cp->result = DID_OK << 16 | lscsi_status; 978 979 if (lscsi_status != SS_CHECK_CONDITION) 980 break; 981 982 /* Copy Sense Data into sense buffer */ 983 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer)); 984 985 if (!(scsi_status & SS_SENSE_LEN_VALID)) 986 break; 987 988 if (le16_to_cpu(pkt->req_sense_length) < 989 sizeof(cp->sense_buffer)) 990 sense_sz = le16_to_cpu(pkt->req_sense_length); 991 else 992 sense_sz = sizeof(cp->sense_buffer); 993 994 CMD_ACTUAL_SNSLEN(cp) = sense_sz; 995 sp->request_sense_length = sense_sz; 996 sp->request_sense_ptr = cp->sense_buffer; 997 998 if (sp->request_sense_length > 32) 999 sense_sz = 32; 1000 1001 memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz); 1002 1003 sp->request_sense_ptr += sense_sz; 1004 sp->request_sense_length -= sense_sz; 1005 if (sp->request_sense_length != 0) 1006 ha->status_srb = sp; 1007 1008 DEBUG5(printk("%s(): Check condition Sense data, " 1009 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", 1010 __func__, ha->host_no, b, t, l, cp, 1011 cp->serial_number)); 1012 if (sense_sz) 1013 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, 1014 CMD_ACTUAL_SNSLEN(cp))); 1015 } else { 1016 /* 1017 * If RISC reports underrun and target does not report 1018 * it then we must have a lost frame, so tell upper 1019 * layer to retry it by reporting a bus busy. 1020 */ 1021 if (!(scsi_status & SS_RESIDUAL_UNDER)) { 1022 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " 1023 "frame(s) detected (%x of %x bytes)..." 1024 "retrying command.\n", 1025 ha->host_no, b, t, l, resid, 1026 cp->request_bufflen)); 1027 1028 cp->result = DID_BUS_BUSY << 16; 1029 ha->dropped_frame_error_cnt++; 1030 break; 1031 } 1032 1033 /* Handle mid-layer underflow */ 1034 if ((unsigned)(cp->request_bufflen - resid) < 1035 cp->underflow) { 1036 qla_printk(KERN_INFO, ha, 1037 "scsi(%ld:%d:%d:%d): Mid-layer underflow " 1038 "detected (%x of %x bytes)...returning " 1039 "error status.\n", 1040 ha->host_no, b, t, l, resid, 1041 cp->request_bufflen); 1042 1043 cp->result = DID_ERROR << 16; 1044 break; 1045 } 1046 1047 /* Everybody online, looking good... */ 1048 cp->result = DID_OK << 16; 1049 } 1050 break; 1051 1052 case CS_DATA_OVERRUN: 1053 DEBUG2(printk(KERN_INFO 1054 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", 1055 ha->host_no, t, l, comp_status, scsi_status)); 1056 DEBUG2(printk(KERN_INFO 1057 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 1058 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3], 1059 cp->cmnd[4], cp->cmnd[5])); 1060 DEBUG2(printk(KERN_INFO 1061 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR " 1062 "status!\n", 1063 cp->serial_number, cp->request_bufflen, 1064 le32_to_cpu(pkt->residual_length))); 1065 1066 cp->result = DID_ERROR << 16; 1067 break; 1068 1069 case CS_PORT_LOGGED_OUT: 1070 case CS_PORT_CONFIG_CHG: 1071 case CS_PORT_BUSY: 1072 case CS_INCOMPLETE: 1073 case CS_PORT_UNAVAILABLE: 1074 /* 1075 * If the port is in Target Down state, return all IOs for this 1076 * Target with DID_NO_CONNECT ELSE Queue the IOs in the 1077 * retry_queue. 1078 */ 1079 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " 1080 "pid=%ld, compl status=0x%x, port state=0x%x\n", 1081 ha->host_no, t, l, cp->serial_number, comp_status, 1082 atomic_read(&fcport->state))); 1083 1084 cp->result = DID_BUS_BUSY << 16; 1085 if (atomic_read(&fcport->state) == FCS_ONLINE) { 1086 qla2x00_mark_device_lost(ha, fcport, 1); 1087 } 1088 break; 1089 1090 case CS_RESET: 1091 DEBUG2(printk(KERN_INFO 1092 "scsi(%ld): RESET status detected 0x%x-0x%x.\n", 1093 ha->host_no, comp_status, scsi_status)); 1094 1095 cp->result = DID_RESET << 16; 1096 break; 1097 1098 case CS_ABORTED: 1099 /* 1100 * hv2.19.12 - DID_ABORT does not retry the request if we 1101 * aborted this request then abort otherwise it must be a 1102 * reset. 1103 */ 1104 DEBUG2(printk(KERN_INFO 1105 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n", 1106 ha->host_no, comp_status, scsi_status)); 1107 1108 cp->result = DID_RESET << 16; 1109 break; 1110 1111 case CS_TIMEOUT: 1112 DEBUG2(printk(KERN_INFO 1113 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " 1114 "sflags=%x.\n", ha->host_no, b, t, l, comp_status, 1115 scsi_status, le16_to_cpu(pkt->status_flags))); 1116 1117 cp->result = DID_BUS_BUSY << 16; 1118 1119 /* Check to see if logout occurred */ 1120 if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) { 1121 qla2x00_mark_device_lost(ha, fcport, 1); 1122 } 1123 break; 1124 1125 case CS_QUEUE_FULL: 1126 DEBUG2(printk(KERN_INFO 1127 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n", 1128 ha->host_no, comp_status, scsi_status)); 1129 1130 /* SCSI Mid-Layer handles device queue full */ 1131 1132 cp->result = DID_OK << 16 | lscsi_status; 1133 1134 break; 1135 1136 default: 1137 DEBUG3(printk("scsi(%ld): Error detected (unknown status) " 1138 "0x%x-0x%x.\n", 1139 ha->host_no, comp_status, scsi_status)); 1140 qla_printk(KERN_INFO, ha, 1141 "Unknown status detected 0x%x-0x%x.\n", 1142 comp_status, scsi_status); 1143 1144 cp->result = DID_ERROR << 16; 1145 break; 1146 } 1147 1148 /* Place command on done queue. */ 1149 if (ha->status_srb == NULL) 1150 qla2x00_sp_compl(ha, sp); 1151 } 1152 1153 /** 1154 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 1155 * @ha: SCSI driver HA context 1156 * @pkt: Entry pointer 1157 * 1158 * Extended sense data. 1159 */ 1160 static void 1161 qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) 1162 { 1163 uint8_t sense_sz = 0; 1164 srb_t *sp = ha->status_srb; 1165 struct scsi_cmnd *cp; 1166 1167 if (sp != NULL && sp->request_sense_length != 0) { 1168 cp = sp->cmd; 1169 if (cp == NULL) { 1170 DEBUG2(printk("%s(): Cmd already returned back to OS " 1171 "sp=%p sp->state:%d\n", __func__, sp, sp->state)); 1172 qla_printk(KERN_INFO, ha, 1173 "cmd is NULL: already returned to OS (sp=%p)\n", 1174 sp); 1175 1176 ha->status_srb = NULL; 1177 return; 1178 } 1179 1180 if (sp->request_sense_length > sizeof(pkt->data)) { 1181 sense_sz = sizeof(pkt->data); 1182 } else { 1183 sense_sz = sp->request_sense_length; 1184 } 1185 1186 /* Move sense data. */ 1187 memcpy(sp->request_sense_ptr, pkt->data, sense_sz); 1188 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); 1189 1190 sp->request_sense_ptr += sense_sz; 1191 sp->request_sense_length -= sense_sz; 1192 1193 /* Place command on done queue. */ 1194 if (sp->request_sense_length == 0) { 1195 ha->status_srb = NULL; 1196 qla2x00_sp_compl(ha, sp); 1197 } 1198 } 1199 } 1200 1201 /** 1202 * qla2x00_error_entry() - Process an error entry. 1203 * @ha: SCSI driver HA context 1204 * @pkt: Entry pointer 1205 */ 1206 static void 1207 qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) 1208 { 1209 srb_t *sp; 1210 1211 #if defined(QL_DEBUG_LEVEL_2) 1212 if (pkt->entry_status & RF_INV_E_ORDER) 1213 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); 1214 else if (pkt->entry_status & RF_INV_E_COUNT) 1215 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); 1216 else if (pkt->entry_status & RF_INV_E_PARAM) 1217 qla_printk(KERN_ERR, ha, 1218 "%s: Invalid Entry Parameter\n", __func__); 1219 else if (pkt->entry_status & RF_INV_E_TYPE) 1220 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); 1221 else if (pkt->entry_status & RF_BUSY) 1222 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); 1223 else 1224 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); 1225 #endif 1226 1227 /* Validate handle. */ 1228 if (pkt->handle < MAX_OUTSTANDING_COMMANDS) 1229 sp = ha->outstanding_cmds[pkt->handle]; 1230 else 1231 sp = NULL; 1232 1233 if (sp) { 1234 /* Free outstanding command slot. */ 1235 ha->outstanding_cmds[pkt->handle] = NULL; 1236 if (ha->actthreads) 1237 ha->actthreads--; 1238 /* Bad payload or header */ 1239 if (pkt->entry_status & 1240 (RF_INV_E_ORDER | RF_INV_E_COUNT | 1241 RF_INV_E_PARAM | RF_INV_E_TYPE)) { 1242 sp->cmd->result = DID_ERROR << 16; 1243 } else if (pkt->entry_status & RF_BUSY) { 1244 sp->cmd->result = DID_BUS_BUSY << 16; 1245 } else { 1246 sp->cmd->result = DID_ERROR << 16; 1247 } 1248 qla2x00_sp_compl(ha, sp); 1249 1250 } else if (pkt->entry_type == COMMAND_A64_TYPE || 1251 pkt->entry_type == COMMAND_TYPE) { 1252 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", 1253 ha->host_no)); 1254 qla_printk(KERN_WARNING, ha, 1255 "Error entry - invalid handle\n"); 1256 1257 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1258 if (ha->dpc_wait && !ha->dpc_active) 1259 up(ha->dpc_wait); 1260 } 1261 } 1262 1263 /** 1264 * qla2x00_ms_entry() - Process a Management Server entry. 1265 * @ha: SCSI driver HA context 1266 * @index: Response queue out pointer 1267 */ 1268 static void 1269 qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) 1270 { 1271 srb_t *sp; 1272 1273 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", 1274 __func__, ha->host_no, pkt, pkt->handle1)); 1275 1276 /* Validate handle. */ 1277 if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS) 1278 sp = ha->outstanding_cmds[pkt->handle1]; 1279 else 1280 sp = NULL; 1281 1282 if (sp == NULL) { 1283 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", 1284 ha->host_no)); 1285 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n"); 1286 1287 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1288 return; 1289 } 1290 1291 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status); 1292 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; 1293 1294 /* Free outstanding command slot. */ 1295 ha->outstanding_cmds[pkt->handle1] = NULL; 1296 1297 qla2x00_sp_compl(ha, sp); 1298 } 1299