1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2010 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 9 #include <linux/delay.h> 10 #include <linux/slab.h> 11 #include <scsi/scsi_tcq.h> 12 #include <scsi/scsi_bsg_fc.h> 13 #include <scsi/scsi_eh.h> 14 15 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 16 static void qla2x00_process_completed_request(struct scsi_qla_host *, 17 struct req_que *, uint32_t); 18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 21 sts_entry_t *); 22 23 /** 24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 25 * @irq: 26 * @dev_id: SCSI driver HA context 27 * 28 * Called by system whenever the host adapter generates an interrupt. 29 * 30 * Returns handled flag. 31 */ 32 irqreturn_t 33 qla2100_intr_handler(int irq, void *dev_id) 34 { 35 scsi_qla_host_t *vha; 36 struct qla_hw_data *ha; 37 struct device_reg_2xxx __iomem *reg; 38 int status; 39 unsigned long iter; 40 uint16_t hccr; 41 uint16_t mb[4]; 42 struct rsp_que *rsp; 43 unsigned long flags; 44 45 rsp = (struct rsp_que *) dev_id; 46 if (!rsp) { 47 printk(KERN_INFO 48 "%s(): NULL response queue pointer\n", __func__); 49 return (IRQ_NONE); 50 } 51 52 ha = rsp->hw; 53 reg = &ha->iobase->isp; 54 status = 0; 55 56 spin_lock_irqsave(&ha->hardware_lock, flags); 57 vha = pci_get_drvdata(ha->pdev); 58 for (iter = 50; iter--; ) { 59 hccr = RD_REG_WORD(®->hccr); 60 if (hccr & HCCR_RISC_PAUSE) { 61 if (pci_channel_offline(ha->pdev)) 62 break; 63 64 /* 65 * Issue a "HARD" reset in order for the RISC interrupt 66 * bit to be cleared. Schedule a big hammmer to get 67 * out of the RISC PAUSED state. 68 */ 69 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 70 RD_REG_WORD(®->hccr); 71 72 ha->isp_ops->fw_dump(vha, 1); 73 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 74 break; 75 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 76 break; 77 78 if (RD_REG_WORD(®->semaphore) & BIT_0) { 79 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 80 RD_REG_WORD(®->hccr); 81 82 /* Get mailbox data. */ 83 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 84 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 85 qla2x00_mbx_completion(vha, mb[0]); 86 status |= MBX_INTERRUPT; 87 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 88 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 89 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 90 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 91 qla2x00_async_event(vha, rsp, mb); 92 } else { 93 /*EMPTY*/ 94 DEBUG2(printk("scsi(%ld): Unrecognized " 95 "interrupt type (%d).\n", 96 vha->host_no, mb[0])); 97 } 98 /* Release mailbox registers. */ 99 WRT_REG_WORD(®->semaphore, 0); 100 RD_REG_WORD(®->semaphore); 101 } else { 102 qla2x00_process_response_queue(rsp); 103 104 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 105 RD_REG_WORD(®->hccr); 106 } 107 } 108 spin_unlock_irqrestore(&ha->hardware_lock, flags); 109 110 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 111 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 112 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 113 complete(&ha->mbx_intr_comp); 114 } 115 116 return (IRQ_HANDLED); 117 } 118 119 /** 120 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 121 * @irq: 122 * @dev_id: SCSI driver HA context 123 * 124 * Called by system whenever the host adapter generates an interrupt. 125 * 126 * Returns handled flag. 127 */ 128 irqreturn_t 129 qla2300_intr_handler(int irq, void *dev_id) 130 { 131 scsi_qla_host_t *vha; 132 struct device_reg_2xxx __iomem *reg; 133 int status; 134 unsigned long iter; 135 uint32_t stat; 136 uint16_t hccr; 137 uint16_t mb[4]; 138 struct rsp_que *rsp; 139 struct qla_hw_data *ha; 140 unsigned long flags; 141 142 rsp = (struct rsp_que *) dev_id; 143 if (!rsp) { 144 printk(KERN_INFO 145 "%s(): NULL response queue pointer\n", __func__); 146 return (IRQ_NONE); 147 } 148 149 ha = rsp->hw; 150 reg = &ha->iobase->isp; 151 status = 0; 152 153 spin_lock_irqsave(&ha->hardware_lock, flags); 154 vha = pci_get_drvdata(ha->pdev); 155 for (iter = 50; iter--; ) { 156 stat = RD_REG_DWORD(®->u.isp2300.host_status); 157 if (stat & HSR_RISC_PAUSED) { 158 if (unlikely(pci_channel_offline(ha->pdev))) 159 break; 160 161 hccr = RD_REG_WORD(®->hccr); 162 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 163 qla_printk(KERN_INFO, ha, "Parity error -- " 164 "HCCR=%x, Dumping firmware!\n", hccr); 165 else 166 qla_printk(KERN_INFO, ha, "RISC paused -- " 167 "HCCR=%x, Dumping firmware!\n", hccr); 168 169 /* 170 * Issue a "HARD" reset in order for the RISC 171 * interrupt bit to be cleared. Schedule a big 172 * hammmer to get out of the RISC PAUSED state. 173 */ 174 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 175 RD_REG_WORD(®->hccr); 176 177 ha->isp_ops->fw_dump(vha, 1); 178 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 179 break; 180 } else if ((stat & HSR_RISC_INT) == 0) 181 break; 182 183 switch (stat & 0xff) { 184 case 0x1: 185 case 0x2: 186 case 0x10: 187 case 0x11: 188 qla2x00_mbx_completion(vha, MSW(stat)); 189 status |= MBX_INTERRUPT; 190 191 /* Release mailbox registers. */ 192 WRT_REG_WORD(®->semaphore, 0); 193 break; 194 case 0x12: 195 mb[0] = MSW(stat); 196 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 197 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 198 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 199 qla2x00_async_event(vha, rsp, mb); 200 break; 201 case 0x13: 202 qla2x00_process_response_queue(rsp); 203 break; 204 case 0x15: 205 mb[0] = MBA_CMPLT_1_16BIT; 206 mb[1] = MSW(stat); 207 qla2x00_async_event(vha, rsp, mb); 208 break; 209 case 0x16: 210 mb[0] = MBA_SCSI_COMPLETION; 211 mb[1] = MSW(stat); 212 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 213 qla2x00_async_event(vha, rsp, mb); 214 break; 215 default: 216 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 217 "(%d).\n", 218 vha->host_no, stat & 0xff)); 219 break; 220 } 221 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 222 RD_REG_WORD_RELAXED(®->hccr); 223 } 224 spin_unlock_irqrestore(&ha->hardware_lock, flags); 225 226 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 227 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 228 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 229 complete(&ha->mbx_intr_comp); 230 } 231 232 return (IRQ_HANDLED); 233 } 234 235 /** 236 * qla2x00_mbx_completion() - Process mailbox command completions. 237 * @ha: SCSI driver HA context 238 * @mb0: Mailbox0 register 239 */ 240 static void 241 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 242 { 243 uint16_t cnt; 244 uint16_t __iomem *wptr; 245 struct qla_hw_data *ha = vha->hw; 246 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 247 248 /* Load return mailbox registers. */ 249 ha->flags.mbox_int = 1; 250 ha->mailbox_out[0] = mb0; 251 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 252 253 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 254 if (IS_QLA2200(ha) && cnt == 8) 255 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 256 if (cnt == 4 || cnt == 5) 257 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 258 else 259 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 260 261 wptr++; 262 } 263 264 if (ha->mcp) { 265 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 266 __func__, vha->host_no, ha->mcp->mb[0])); 267 } else { 268 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 269 __func__, vha->host_no)); 270 } 271 } 272 273 static void 274 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 275 { 276 static char *event[] = 277 { "Complete", "Request Notification", "Time Extension" }; 278 int rval; 279 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 280 uint16_t __iomem *wptr; 281 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 282 283 /* Seed data -- mailbox1 -> mailbox7. */ 284 wptr = (uint16_t __iomem *)®24->mailbox1; 285 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 286 mb[cnt] = RD_REG_WORD(wptr); 287 288 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- " 289 "%04x %04x %04x %04x %04x %04x %04x.\n", vha->host_no, 290 event[aen & 0xff], 291 mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6])); 292 293 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 294 timeout = (descr >> 8) & 0xf; 295 if (aen != MBA_IDC_NOTIFY || !timeout) 296 return; 297 298 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- " 299 "ACK timeout=%d.\n", vha->host_no, event[aen & 0xff], timeout)); 300 301 rval = qla2x00_post_idc_ack_work(vha, mb); 302 if (rval != QLA_SUCCESS) 303 qla_printk(KERN_WARNING, vha->hw, 304 "IDC failed to post ACK.\n"); 305 } 306 307 /** 308 * qla2x00_async_event() - Process aynchronous events. 309 * @ha: SCSI driver HA context 310 * @mb: Mailbox registers (0 - 3) 311 */ 312 void 313 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 314 { 315 #define LS_UNKNOWN 2 316 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" }; 317 char *link_speed; 318 uint16_t handle_cnt; 319 uint16_t cnt, mbx; 320 uint32_t handles[5]; 321 struct qla_hw_data *ha = vha->hw; 322 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 323 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 324 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 325 uint32_t rscn_entry, host_pid; 326 uint8_t rscn_queue_index; 327 unsigned long flags; 328 329 /* Setup to process RIO completion. */ 330 handle_cnt = 0; 331 if (IS_QLA8XXX_TYPE(ha)) 332 goto skip_rio; 333 switch (mb[0]) { 334 case MBA_SCSI_COMPLETION: 335 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 336 handle_cnt = 1; 337 break; 338 case MBA_CMPLT_1_16BIT: 339 handles[0] = mb[1]; 340 handle_cnt = 1; 341 mb[0] = MBA_SCSI_COMPLETION; 342 break; 343 case MBA_CMPLT_2_16BIT: 344 handles[0] = mb[1]; 345 handles[1] = mb[2]; 346 handle_cnt = 2; 347 mb[0] = MBA_SCSI_COMPLETION; 348 break; 349 case MBA_CMPLT_3_16BIT: 350 handles[0] = mb[1]; 351 handles[1] = mb[2]; 352 handles[2] = mb[3]; 353 handle_cnt = 3; 354 mb[0] = MBA_SCSI_COMPLETION; 355 break; 356 case MBA_CMPLT_4_16BIT: 357 handles[0] = mb[1]; 358 handles[1] = mb[2]; 359 handles[2] = mb[3]; 360 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 361 handle_cnt = 4; 362 mb[0] = MBA_SCSI_COMPLETION; 363 break; 364 case MBA_CMPLT_5_16BIT: 365 handles[0] = mb[1]; 366 handles[1] = mb[2]; 367 handles[2] = mb[3]; 368 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 369 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 370 handle_cnt = 5; 371 mb[0] = MBA_SCSI_COMPLETION; 372 break; 373 case MBA_CMPLT_2_32BIT: 374 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 375 handles[1] = le32_to_cpu( 376 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 377 RD_MAILBOX_REG(ha, reg, 6)); 378 handle_cnt = 2; 379 mb[0] = MBA_SCSI_COMPLETION; 380 break; 381 default: 382 break; 383 } 384 skip_rio: 385 switch (mb[0]) { 386 case MBA_SCSI_COMPLETION: /* Fast Post */ 387 if (!vha->flags.online) 388 break; 389 390 for (cnt = 0; cnt < handle_cnt; cnt++) 391 qla2x00_process_completed_request(vha, rsp->req, 392 handles[cnt]); 393 break; 394 395 case MBA_RESET: /* Reset */ 396 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", 397 vha->host_no)); 398 399 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 400 break; 401 402 case MBA_SYSTEM_ERR: /* System Error */ 403 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox7) : 0; 404 qla_printk(KERN_INFO, ha, 405 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 406 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 407 408 ha->isp_ops->fw_dump(vha, 1); 409 410 if (IS_FWI2_CAPABLE(ha)) { 411 if (mb[1] == 0 && mb[2] == 0) { 412 qla_printk(KERN_ERR, ha, 413 "Unrecoverable Hardware Error: adapter " 414 "marked OFFLINE!\n"); 415 vha->flags.online = 0; 416 } else { 417 /* Check to see if MPI timeout occured */ 418 if ((mbx & MBX_3) && (ha->flags.port0)) 419 set_bit(MPI_RESET_NEEDED, 420 &vha->dpc_flags); 421 422 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 423 } 424 } else if (mb[1] == 0) { 425 qla_printk(KERN_INFO, ha, 426 "Unrecoverable Hardware Error: adapter marked " 427 "OFFLINE!\n"); 428 vha->flags.online = 0; 429 } else 430 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 431 break; 432 433 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 434 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n", 435 vha->host_no, mb[1])); 436 qla_printk(KERN_WARNING, ha, 437 "ISP Request Transfer Error (%x).\n", mb[1]); 438 439 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 440 break; 441 442 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 443 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", 444 vha->host_no)); 445 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); 446 447 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 448 break; 449 450 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 451 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", 452 vha->host_no)); 453 break; 454 455 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 456 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no, 457 mb[1])); 458 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]); 459 460 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 461 atomic_set(&vha->loop_state, LOOP_DOWN); 462 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 463 qla2x00_mark_all_devices_lost(vha, 1); 464 } 465 466 if (vha->vp_idx) { 467 atomic_set(&vha->vp_state, VP_FAILED); 468 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 469 } 470 471 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 472 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 473 474 vha->flags.management_server_logged_in = 0; 475 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 476 break; 477 478 case MBA_LOOP_UP: /* Loop Up Event */ 479 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 480 link_speed = link_speeds[0]; 481 ha->link_data_rate = PORT_SPEED_1GB; 482 } else { 483 link_speed = link_speeds[LS_UNKNOWN]; 484 if (mb[1] < 5) 485 link_speed = link_speeds[mb[1]]; 486 else if (mb[1] == 0x13) 487 link_speed = link_speeds[5]; 488 ha->link_data_rate = mb[1]; 489 } 490 491 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", 492 vha->host_no, link_speed)); 493 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", 494 link_speed); 495 496 vha->flags.management_server_logged_in = 0; 497 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 498 break; 499 500 case MBA_LOOP_DOWN: /* Loop Down Event */ 501 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox4) : 0; 502 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(®82->mailbox_out[4]) : mbx; 503 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN " 504 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3], 505 mbx)); 506 qla_printk(KERN_INFO, ha, 507 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3], 508 mbx); 509 510 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 511 atomic_set(&vha->loop_state, LOOP_DOWN); 512 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 513 vha->device_flags |= DFLG_NO_CABLE; 514 qla2x00_mark_all_devices_lost(vha, 1); 515 } 516 517 if (vha->vp_idx) { 518 atomic_set(&vha->vp_state, VP_FAILED); 519 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 520 } 521 522 vha->flags.management_server_logged_in = 0; 523 ha->link_data_rate = PORT_SPEED_UNKNOWN; 524 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 525 break; 526 527 case MBA_LIP_RESET: /* LIP reset occurred */ 528 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", 529 vha->host_no, mb[1])); 530 qla_printk(KERN_INFO, ha, 531 "LIP reset occurred (%x).\n", mb[1]); 532 533 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 534 atomic_set(&vha->loop_state, LOOP_DOWN); 535 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 536 qla2x00_mark_all_devices_lost(vha, 1); 537 } 538 539 if (vha->vp_idx) { 540 atomic_set(&vha->vp_state, VP_FAILED); 541 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 542 } 543 544 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 545 546 ha->operating_mode = LOOP; 547 vha->flags.management_server_logged_in = 0; 548 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 549 break; 550 551 /* case MBA_DCBX_COMPLETE: */ 552 case MBA_POINT_TO_POINT: /* Point-to-Point */ 553 if (IS_QLA2100(ha)) 554 break; 555 556 if (IS_QLA8XXX_TYPE(ha)) { 557 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x " 558 "%04x\n", vha->host_no, mb[1], mb[2], mb[3])); 559 if (ha->notify_dcbx_comp) 560 complete(&ha->dcbx_comp); 561 562 } else 563 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE " 564 "received.\n", vha->host_no)); 565 566 /* 567 * Until there's a transition from loop down to loop up, treat 568 * this as loop down only. 569 */ 570 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 571 atomic_set(&vha->loop_state, LOOP_DOWN); 572 if (!atomic_read(&vha->loop_down_timer)) 573 atomic_set(&vha->loop_down_timer, 574 LOOP_DOWN_TIME); 575 qla2x00_mark_all_devices_lost(vha, 1); 576 } 577 578 if (vha->vp_idx) { 579 atomic_set(&vha->vp_state, VP_FAILED); 580 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 581 } 582 583 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 584 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 585 586 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 587 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 588 589 ha->flags.gpsc_supported = 1; 590 vha->flags.management_server_logged_in = 0; 591 break; 592 593 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 594 if (IS_QLA2100(ha)) 595 break; 596 597 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " 598 "received.\n", 599 vha->host_no)); 600 qla_printk(KERN_INFO, ha, 601 "Configuration change detected: value=%x.\n", mb[1]); 602 603 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 604 atomic_set(&vha->loop_state, LOOP_DOWN); 605 if (!atomic_read(&vha->loop_down_timer)) 606 atomic_set(&vha->loop_down_timer, 607 LOOP_DOWN_TIME); 608 qla2x00_mark_all_devices_lost(vha, 1); 609 } 610 611 if (vha->vp_idx) { 612 atomic_set(&vha->vp_state, VP_FAILED); 613 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 614 } 615 616 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 617 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 618 break; 619 620 case MBA_PORT_UPDATE: /* Port database update */ 621 /* 622 * Handle only global and vn-port update events 623 * 624 * Relevant inputs: 625 * mb[1] = N_Port handle of changed port 626 * OR 0xffff for global event 627 * mb[2] = New login state 628 * 7 = Port logged out 629 * mb[3] = LSB is vp_idx, 0xff = all vps 630 * 631 * Skip processing if: 632 * Event is global, vp_idx is NOT all vps, 633 * vp_idx does not match 634 * Event is not global, vp_idx does not match 635 */ 636 if (IS_QLA2XXX_MIDTYPE(ha) && 637 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 638 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 639 break; 640 641 /* Global event -- port logout or port unavailable. */ 642 if (mb[1] == 0xffff && mb[2] == 0x7) { 643 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 644 vha->host_no)); 645 DEBUG(printk(KERN_INFO 646 "scsi(%ld): Port unavailable %04x %04x %04x.\n", 647 vha->host_no, mb[1], mb[2], mb[3])); 648 649 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 650 atomic_set(&vha->loop_state, LOOP_DOWN); 651 atomic_set(&vha->loop_down_timer, 652 LOOP_DOWN_TIME); 653 vha->device_flags |= DFLG_NO_CABLE; 654 qla2x00_mark_all_devices_lost(vha, 1); 655 } 656 657 if (vha->vp_idx) { 658 atomic_set(&vha->vp_state, VP_FAILED); 659 fc_vport_set_state(vha->fc_vport, 660 FC_VPORT_FAILED); 661 qla2x00_mark_all_devices_lost(vha, 1); 662 } 663 664 vha->flags.management_server_logged_in = 0; 665 ha->link_data_rate = PORT_SPEED_UNKNOWN; 666 break; 667 } 668 669 /* 670 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 671 * event etc. earlier indicating loop is down) then process 672 * it. Otherwise ignore it and Wait for RSCN to come in. 673 */ 674 atomic_set(&vha->loop_down_timer, 0); 675 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 676 atomic_read(&vha->loop_state) != LOOP_DEAD) { 677 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " 678 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1], 679 mb[2], mb[3])); 680 break; 681 } 682 683 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 684 vha->host_no)); 685 DEBUG(printk(KERN_INFO 686 "scsi(%ld): Port database changed %04x %04x %04x.\n", 687 vha->host_no, mb[1], mb[2], mb[3])); 688 689 /* 690 * Mark all devices as missing so we will login again. 691 */ 692 atomic_set(&vha->loop_state, LOOP_UP); 693 694 qla2x00_mark_all_devices_lost(vha, 1); 695 696 vha->flags.rscn_queue_overflow = 1; 697 698 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 699 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 700 break; 701 702 case MBA_RSCN_UPDATE: /* State Change Registration */ 703 /* Check if the Vport has issued a SCR */ 704 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 705 break; 706 /* Only handle SCNs for our Vport index. */ 707 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 708 break; 709 710 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", 711 vha->host_no)); 712 DEBUG(printk(KERN_INFO 713 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", 714 vha->host_no, mb[1], mb[2], mb[3])); 715 716 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 717 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 718 | vha->d_id.b.al_pa; 719 if (rscn_entry == host_pid) { 720 DEBUG(printk(KERN_INFO 721 "scsi(%ld): Ignoring RSCN update to local host " 722 "port ID (%06x)\n", 723 vha->host_no, host_pid)); 724 break; 725 } 726 727 /* Ignore reserved bits from RSCN-payload. */ 728 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 729 rscn_queue_index = vha->rscn_in_ptr + 1; 730 if (rscn_queue_index == MAX_RSCN_COUNT) 731 rscn_queue_index = 0; 732 if (rscn_queue_index != vha->rscn_out_ptr) { 733 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry; 734 vha->rscn_in_ptr = rscn_queue_index; 735 } else { 736 vha->flags.rscn_queue_overflow = 1; 737 } 738 739 atomic_set(&vha->loop_state, LOOP_UPDATE); 740 atomic_set(&vha->loop_down_timer, 0); 741 vha->flags.management_server_logged_in = 0; 742 743 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 744 set_bit(RSCN_UPDATE, &vha->dpc_flags); 745 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 746 break; 747 748 /* case MBA_RIO_RESPONSE: */ 749 case MBA_ZIO_RESPONSE: 750 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n", 751 vha->host_no)); 752 753 if (IS_FWI2_CAPABLE(ha)) 754 qla24xx_process_response_queue(vha, rsp); 755 else 756 qla2x00_process_response_queue(rsp); 757 break; 758 759 case MBA_DISCARD_RND_FRAME: 760 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " 761 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); 762 break; 763 764 case MBA_TRACE_NOTIFICATION: 765 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", 766 vha->host_no, mb[1], mb[2])); 767 break; 768 769 case MBA_ISP84XX_ALERT: 770 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- " 771 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 772 773 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 774 switch (mb[1]) { 775 case A84_PANIC_RECOVERY: 776 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery " 777 "%04x %04x\n", mb[2], mb[3]); 778 break; 779 case A84_OP_LOGIN_COMPLETE: 780 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 781 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:" 782 "firmware version %x\n", ha->cs84xx->op_fw_version)); 783 break; 784 case A84_DIAG_LOGIN_COMPLETE: 785 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 786 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:" 787 "diagnostic firmware version %x\n", 788 ha->cs84xx->diag_fw_version)); 789 break; 790 case A84_GOLD_LOGIN_COMPLETE: 791 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 792 ha->cs84xx->fw_update = 1; 793 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold " 794 "firmware version %x\n", 795 ha->cs84xx->gold_fw_version)); 796 break; 797 default: 798 qla_printk(KERN_ERR, ha, 799 "Alert 84xx: Invalid Alert %04x %04x %04x\n", 800 mb[1], mb[2], mb[3]); 801 } 802 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 803 break; 804 case MBA_DCBX_START: 805 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n", 806 vha->host_no, mb[1], mb[2], mb[3])); 807 break; 808 case MBA_DCBX_PARAM_UPDATE: 809 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- " 810 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 811 break; 812 case MBA_FCF_CONF_ERR: 813 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- " 814 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 815 break; 816 case MBA_IDC_COMPLETE: 817 case MBA_IDC_NOTIFY: 818 case MBA_IDC_TIME_EXT: 819 qla81xx_idc_event(vha, mb[0], mb[1]); 820 break; 821 } 822 823 if (!vha->vp_idx && ha->num_vhosts) 824 qla2x00_alert_all_vps(rsp, mb); 825 } 826 827 /** 828 * qla2x00_process_completed_request() - Process a Fast Post response. 829 * @ha: SCSI driver HA context 830 * @index: SRB index 831 */ 832 static void 833 qla2x00_process_completed_request(struct scsi_qla_host *vha, 834 struct req_que *req, uint32_t index) 835 { 836 srb_t *sp; 837 struct qla_hw_data *ha = vha->hw; 838 839 /* Validate handle. */ 840 if (index >= MAX_OUTSTANDING_COMMANDS) { 841 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", 842 vha->host_no, index)); 843 qla_printk(KERN_WARNING, ha, 844 "Invalid SCSI completion handle %d.\n", index); 845 846 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 847 return; 848 } 849 850 sp = req->outstanding_cmds[index]; 851 if (sp) { 852 /* Free outstanding command slot. */ 853 req->outstanding_cmds[index] = NULL; 854 855 /* Save ISP completion status */ 856 sp->cmd->result = DID_OK << 16; 857 qla2x00_sp_compl(ha, sp); 858 } else { 859 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion" 860 " handle(0x%x)\n", vha->host_no, req->id, index)); 861 qla_printk(KERN_WARNING, ha, 862 "Invalid ISP SCSI completion handle\n"); 863 864 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 865 } 866 } 867 868 static srb_t * 869 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 870 struct req_que *req, void *iocb) 871 { 872 struct qla_hw_data *ha = vha->hw; 873 sts_entry_t *pkt = iocb; 874 srb_t *sp = NULL; 875 uint16_t index; 876 877 index = LSW(pkt->handle); 878 if (index >= MAX_OUTSTANDING_COMMANDS) { 879 qla_printk(KERN_WARNING, ha, 880 "%s: Invalid completion handle (%x).\n", func, index); 881 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 882 goto done; 883 } 884 sp = req->outstanding_cmds[index]; 885 if (!sp) { 886 qla_printk(KERN_WARNING, ha, 887 "%s: Invalid completion handle (%x) -- timed-out.\n", func, 888 index); 889 return sp; 890 } 891 if (sp->handle != index) { 892 qla_printk(KERN_WARNING, ha, 893 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle, 894 index); 895 return NULL; 896 } 897 898 req->outstanding_cmds[index] = NULL; 899 900 done: 901 return sp; 902 } 903 904 static void 905 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 906 struct mbx_entry *mbx) 907 { 908 const char func[] = "MBX-IOCB"; 909 const char *type; 910 fc_port_t *fcport; 911 srb_t *sp; 912 struct srb_iocb *lio; 913 struct srb_ctx *ctx; 914 uint16_t *data; 915 uint16_t status; 916 917 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 918 if (!sp) 919 return; 920 921 ctx = sp->ctx; 922 lio = ctx->u.iocb_cmd; 923 type = ctx->name; 924 fcport = sp->fcport; 925 data = lio->u.logio.data; 926 927 data[0] = MBS_COMMAND_ERROR; 928 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 929 QLA_LOGIO_LOGIN_RETRIED : 0; 930 if (mbx->entry_status) { 931 DEBUG2(printk(KERN_WARNING 932 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x " 933 "entry-status=%x status=%x state-flag=%x " 934 "status-flags=%x.\n", 935 fcport->vha->host_no, sp->handle, type, 936 fcport->d_id.b.domain, fcport->d_id.b.area, 937 fcport->d_id.b.al_pa, mbx->entry_status, 938 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 939 le16_to_cpu(mbx->status_flags))); 940 941 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx))); 942 943 goto logio_done; 944 } 945 946 status = le16_to_cpu(mbx->status); 947 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD && 948 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 949 status = 0; 950 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 951 DEBUG2(printk(KERN_DEBUG 952 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " 953 "mbx1=%x.\n", 954 fcport->vha->host_no, sp->handle, type, 955 fcport->d_id.b.domain, fcport->d_id.b.area, 956 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1))); 957 958 data[0] = MBS_COMMAND_COMPLETE; 959 if (ctx->type == SRB_LOGIN_CMD) { 960 fcport->port_type = FCT_TARGET; 961 if (le16_to_cpu(mbx->mb1) & BIT_0) 962 fcport->port_type = FCT_INITIATOR; 963 else if (le16_to_cpu(mbx->mb1) & BIT_1) 964 fcport->flags |= FCF_FCP2_DEVICE; 965 } 966 goto logio_done; 967 } 968 969 data[0] = le16_to_cpu(mbx->mb0); 970 switch (data[0]) { 971 case MBS_PORT_ID_USED: 972 data[1] = le16_to_cpu(mbx->mb1); 973 break; 974 case MBS_LOOP_ID_USED: 975 break; 976 default: 977 data[0] = MBS_COMMAND_ERROR; 978 break; 979 } 980 981 DEBUG2(printk(KERN_WARNING 982 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x " 983 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", 984 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain, 985 fcport->d_id.b.area, fcport->d_id.b.al_pa, status, 986 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 987 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 988 le16_to_cpu(mbx->mb7))); 989 990 logio_done: 991 lio->done(sp); 992 } 993 994 static void 995 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 996 sts_entry_t *pkt, int iocb_type) 997 { 998 const char func[] = "CT_IOCB"; 999 const char *type; 1000 struct qla_hw_data *ha = vha->hw; 1001 srb_t *sp; 1002 struct srb_ctx *sp_bsg; 1003 struct fc_bsg_job *bsg_job; 1004 uint16_t comp_status; 1005 1006 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1007 if (!sp) 1008 return; 1009 1010 sp_bsg = sp->ctx; 1011 bsg_job = sp_bsg->u.bsg_job; 1012 1013 type = NULL; 1014 switch (sp_bsg->type) { 1015 case SRB_CT_CMD: 1016 type = "ct pass-through"; 1017 break; 1018 default: 1019 qla_printk(KERN_WARNING, ha, 1020 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, 1021 sp_bsg->type); 1022 return; 1023 } 1024 1025 comp_status = le16_to_cpu(pkt->comp_status); 1026 1027 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1028 * fc payload to the caller 1029 */ 1030 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1031 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1032 1033 if (comp_status != CS_COMPLETE) { 1034 if (comp_status == CS_DATA_UNDERRUN) { 1035 bsg_job->reply->result = DID_OK << 16; 1036 bsg_job->reply->reply_payload_rcv_len = 1037 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1038 1039 DEBUG2(qla_printk(KERN_WARNING, ha, 1040 "scsi(%ld): CT pass-through-%s error " 1041 "comp_status-status=0x%x total_byte = 0x%x.\n", 1042 vha->host_no, type, comp_status, 1043 bsg_job->reply->reply_payload_rcv_len)); 1044 } else { 1045 DEBUG2(qla_printk(KERN_WARNING, ha, 1046 "scsi(%ld): CT pass-through-%s error " 1047 "comp_status-status=0x%x.\n", 1048 vha->host_no, type, comp_status)); 1049 bsg_job->reply->result = DID_ERROR << 16; 1050 bsg_job->reply->reply_payload_rcv_len = 0; 1051 } 1052 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); 1053 } else { 1054 bsg_job->reply->result = DID_OK << 16;; 1055 bsg_job->reply->reply_payload_rcv_len = 1056 bsg_job->reply_payload.payload_len; 1057 bsg_job->reply_len = 0; 1058 } 1059 1060 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, 1061 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); 1062 1063 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, 1064 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); 1065 1066 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD) 1067 kfree(sp->fcport); 1068 1069 kfree(sp->ctx); 1070 mempool_free(sp, ha->srb_mempool); 1071 bsg_job->job_done(bsg_job); 1072 } 1073 1074 static void 1075 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1076 struct sts_entry_24xx *pkt, int iocb_type) 1077 { 1078 const char func[] = "ELS_CT_IOCB"; 1079 const char *type; 1080 struct qla_hw_data *ha = vha->hw; 1081 srb_t *sp; 1082 struct srb_ctx *sp_bsg; 1083 struct fc_bsg_job *bsg_job; 1084 uint16_t comp_status; 1085 uint32_t fw_status[3]; 1086 uint8_t* fw_sts_ptr; 1087 1088 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1089 if (!sp) 1090 return; 1091 sp_bsg = sp->ctx; 1092 bsg_job = sp_bsg->u.bsg_job; 1093 1094 type = NULL; 1095 switch (sp_bsg->type) { 1096 case SRB_ELS_CMD_RPT: 1097 case SRB_ELS_CMD_HST: 1098 type = "els"; 1099 break; 1100 case SRB_CT_CMD: 1101 type = "ct pass-through"; 1102 break; 1103 default: 1104 qla_printk(KERN_WARNING, ha, 1105 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, 1106 sp_bsg->type); 1107 return; 1108 } 1109 1110 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1111 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1112 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1113 1114 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1115 * fc payload to the caller 1116 */ 1117 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1118 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1119 1120 if (comp_status != CS_COMPLETE) { 1121 if (comp_status == CS_DATA_UNDERRUN) { 1122 bsg_job->reply->result = DID_OK << 16; 1123 bsg_job->reply->reply_payload_rcv_len = 1124 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count); 1125 1126 DEBUG2(qla_printk(KERN_WARNING, ha, 1127 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " 1128 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1129 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2], 1130 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count))); 1131 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1132 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1133 } 1134 else { 1135 DEBUG2(qla_printk(KERN_WARNING, ha, 1136 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " 1137 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1138 vha->host_no, sp->handle, type, comp_status, 1139 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1), 1140 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2))); 1141 bsg_job->reply->result = DID_ERROR << 16; 1142 bsg_job->reply->reply_payload_rcv_len = 0; 1143 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1144 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1145 } 1146 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); 1147 } 1148 else { 1149 bsg_job->reply->result = DID_OK << 16;; 1150 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1151 bsg_job->reply_len = 0; 1152 } 1153 1154 dma_unmap_sg(&ha->pdev->dev, 1155 bsg_job->request_payload.sg_list, 1156 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); 1157 dma_unmap_sg(&ha->pdev->dev, 1158 bsg_job->reply_payload.sg_list, 1159 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); 1160 if ((sp_bsg->type == SRB_ELS_CMD_HST) || 1161 (sp_bsg->type == SRB_CT_CMD)) 1162 kfree(sp->fcport); 1163 kfree(sp->ctx); 1164 mempool_free(sp, ha->srb_mempool); 1165 bsg_job->job_done(bsg_job); 1166 } 1167 1168 static void 1169 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1170 struct logio_entry_24xx *logio) 1171 { 1172 const char func[] = "LOGIO-IOCB"; 1173 const char *type; 1174 fc_port_t *fcport; 1175 srb_t *sp; 1176 struct srb_iocb *lio; 1177 struct srb_ctx *ctx; 1178 uint16_t *data; 1179 uint32_t iop[2]; 1180 1181 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1182 if (!sp) 1183 return; 1184 1185 ctx = sp->ctx; 1186 lio = ctx->u.iocb_cmd; 1187 type = ctx->name; 1188 fcport = sp->fcport; 1189 data = lio->u.logio.data; 1190 1191 data[0] = MBS_COMMAND_ERROR; 1192 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1193 QLA_LOGIO_LOGIN_RETRIED : 0; 1194 if (logio->entry_status) { 1195 DEBUG2(printk(KERN_WARNING 1196 "scsi(%ld:%x): Async-%s error entry - " 1197 "portid=%02x%02x%02x entry-status=%x.\n", 1198 fcport->vha->host_no, sp->handle, type, 1199 fcport->d_id.b.domain, fcport->d_id.b.area, 1200 fcport->d_id.b.al_pa, logio->entry_status)); 1201 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio))); 1202 1203 goto logio_done; 1204 } 1205 1206 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1207 DEBUG2(printk(KERN_DEBUG 1208 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " 1209 "iop0=%x.\n", 1210 fcport->vha->host_no, sp->handle, type, 1211 fcport->d_id.b.domain, fcport->d_id.b.area, 1212 fcport->d_id.b.al_pa, 1213 le32_to_cpu(logio->io_parameter[0]))); 1214 1215 data[0] = MBS_COMMAND_COMPLETE; 1216 if (ctx->type != SRB_LOGIN_CMD) 1217 goto logio_done; 1218 1219 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1220 if (iop[0] & BIT_4) { 1221 fcport->port_type = FCT_TARGET; 1222 if (iop[0] & BIT_8) 1223 fcport->flags |= FCF_FCP2_DEVICE; 1224 } else if (iop[0] & BIT_5) 1225 fcport->port_type = FCT_INITIATOR; 1226 1227 if (logio->io_parameter[7] || logio->io_parameter[8]) 1228 fcport->supported_classes |= FC_COS_CLASS2; 1229 if (logio->io_parameter[9] || logio->io_parameter[10]) 1230 fcport->supported_classes |= FC_COS_CLASS3; 1231 1232 goto logio_done; 1233 } 1234 1235 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1236 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1237 switch (iop[0]) { 1238 case LSC_SCODE_PORTID_USED: 1239 data[0] = MBS_PORT_ID_USED; 1240 data[1] = LSW(iop[1]); 1241 break; 1242 case LSC_SCODE_NPORT_USED: 1243 data[0] = MBS_LOOP_ID_USED; 1244 break; 1245 default: 1246 data[0] = MBS_COMMAND_ERROR; 1247 break; 1248 } 1249 1250 DEBUG2(printk(KERN_WARNING 1251 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x " 1252 "iop0=%x iop1=%x.\n", 1253 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain, 1254 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1255 le16_to_cpu(logio->comp_status), 1256 le32_to_cpu(logio->io_parameter[0]), 1257 le32_to_cpu(logio->io_parameter[1]))); 1258 1259 logio_done: 1260 lio->done(sp); 1261 } 1262 1263 static void 1264 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1265 struct tsk_mgmt_entry *tsk) 1266 { 1267 const char func[] = "TMF-IOCB"; 1268 const char *type; 1269 fc_port_t *fcport; 1270 srb_t *sp; 1271 struct srb_iocb *iocb; 1272 struct srb_ctx *ctx; 1273 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1274 int error = 1; 1275 1276 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1277 if (!sp) 1278 return; 1279 1280 ctx = sp->ctx; 1281 iocb = ctx->u.iocb_cmd; 1282 type = ctx->name; 1283 fcport = sp->fcport; 1284 1285 if (sts->entry_status) { 1286 DEBUG2(printk(KERN_WARNING 1287 "scsi(%ld:%x): Async-%s error - entry-status(%x).\n", 1288 fcport->vha->host_no, sp->handle, type, 1289 sts->entry_status)); 1290 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { 1291 DEBUG2(printk(KERN_WARNING 1292 "scsi(%ld:%x): Async-%s error - completion status(%x).\n", 1293 fcport->vha->host_no, sp->handle, type, 1294 sts->comp_status)); 1295 } else if (!(le16_to_cpu(sts->scsi_status) & 1296 SS_RESPONSE_INFO_LEN_VALID)) { 1297 DEBUG2(printk(KERN_WARNING 1298 "scsi(%ld:%x): Async-%s error - no response info(%x).\n", 1299 fcport->vha->host_no, sp->handle, type, 1300 sts->scsi_status)); 1301 } else if (le32_to_cpu(sts->rsp_data_len) < 4) { 1302 DEBUG2(printk(KERN_WARNING 1303 "scsi(%ld:%x): Async-%s error - not enough response(%d).\n", 1304 fcport->vha->host_no, sp->handle, type, 1305 sts->rsp_data_len)); 1306 } else if (sts->data[3]) { 1307 DEBUG2(printk(KERN_WARNING 1308 "scsi(%ld:%x): Async-%s error - response(%x).\n", 1309 fcport->vha->host_no, sp->handle, type, 1310 sts->data[3])); 1311 } else { 1312 error = 0; 1313 } 1314 1315 if (error) { 1316 iocb->u.tmf.data = error; 1317 DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts))); 1318 } 1319 1320 iocb->done(sp); 1321 } 1322 1323 /** 1324 * qla2x00_process_response_queue() - Process response queue entries. 1325 * @ha: SCSI driver HA context 1326 */ 1327 void 1328 qla2x00_process_response_queue(struct rsp_que *rsp) 1329 { 1330 struct scsi_qla_host *vha; 1331 struct qla_hw_data *ha = rsp->hw; 1332 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1333 sts_entry_t *pkt; 1334 uint16_t handle_cnt; 1335 uint16_t cnt; 1336 1337 vha = pci_get_drvdata(ha->pdev); 1338 1339 if (!vha->flags.online) 1340 return; 1341 1342 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1343 pkt = (sts_entry_t *)rsp->ring_ptr; 1344 1345 rsp->ring_index++; 1346 if (rsp->ring_index == rsp->length) { 1347 rsp->ring_index = 0; 1348 rsp->ring_ptr = rsp->ring; 1349 } else { 1350 rsp->ring_ptr++; 1351 } 1352 1353 if (pkt->entry_status != 0) { 1354 DEBUG3(printk(KERN_INFO 1355 "scsi(%ld): Process error entry.\n", vha->host_no)); 1356 1357 qla2x00_error_entry(vha, rsp, pkt); 1358 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1359 wmb(); 1360 continue; 1361 } 1362 1363 switch (pkt->entry_type) { 1364 case STATUS_TYPE: 1365 qla2x00_status_entry(vha, rsp, pkt); 1366 break; 1367 case STATUS_TYPE_21: 1368 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1369 for (cnt = 0; cnt < handle_cnt; cnt++) { 1370 qla2x00_process_completed_request(vha, rsp->req, 1371 ((sts21_entry_t *)pkt)->handle[cnt]); 1372 } 1373 break; 1374 case STATUS_TYPE_22: 1375 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1376 for (cnt = 0; cnt < handle_cnt; cnt++) { 1377 qla2x00_process_completed_request(vha, rsp->req, 1378 ((sts22_entry_t *)pkt)->handle[cnt]); 1379 } 1380 break; 1381 case STATUS_CONT_TYPE: 1382 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1383 break; 1384 case MBX_IOCB_TYPE: 1385 qla2x00_mbx_iocb_entry(vha, rsp->req, 1386 (struct mbx_entry *)pkt); 1387 break; 1388 case CT_IOCB_TYPE: 1389 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1390 break; 1391 default: 1392 /* Type Not Supported. */ 1393 DEBUG4(printk(KERN_WARNING 1394 "scsi(%ld): Received unknown response pkt type %x " 1395 "entry status=%x.\n", 1396 vha->host_no, pkt->entry_type, pkt->entry_status)); 1397 break; 1398 } 1399 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1400 wmb(); 1401 } 1402 1403 /* Adjust ring index */ 1404 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1405 } 1406 1407 static inline void 1408 1409 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1410 uint32_t sense_len, struct rsp_que *rsp) 1411 { 1412 struct scsi_cmnd *cp = sp->cmd; 1413 1414 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1415 sense_len = SCSI_SENSE_BUFFERSIZE; 1416 1417 sp->request_sense_length = sense_len; 1418 sp->request_sense_ptr = cp->sense_buffer; 1419 if (sp->request_sense_length > par_sense_len) 1420 sense_len = par_sense_len; 1421 1422 memcpy(cp->sense_buffer, sense_data, sense_len); 1423 1424 sp->request_sense_ptr += sense_len; 1425 sp->request_sense_length -= sense_len; 1426 if (sp->request_sense_length != 0) 1427 rsp->status_srb = sp; 1428 1429 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) " 1430 "cmd=%p\n", __func__, sp->fcport->vha->host_no, 1431 cp->device->channel, cp->device->id, cp->device->lun, cp)); 1432 if (sense_len) 1433 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len)); 1434 } 1435 1436 struct scsi_dif_tuple { 1437 __be16 guard; /* Checksum */ 1438 __be16 app_tag; /* APPL identifer */ 1439 __be32 ref_tag; /* Target LBA or indirect LBA */ 1440 }; 1441 1442 /* 1443 * Checks the guard or meta-data for the type of error 1444 * detected by the HBA. In case of errors, we set the 1445 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1446 * to indicate to the kernel that the HBA detected error. 1447 */ 1448 static inline void 1449 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1450 { 1451 struct scsi_cmnd *cmd = sp->cmd; 1452 struct scsi_dif_tuple *ep = 1453 (struct scsi_dif_tuple *)&sts24->data[20]; 1454 struct scsi_dif_tuple *ap = 1455 (struct scsi_dif_tuple *)&sts24->data[12]; 1456 uint32_t e_ref_tag, a_ref_tag; 1457 uint16_t e_app_tag, a_app_tag; 1458 uint16_t e_guard, a_guard; 1459 1460 e_ref_tag = be32_to_cpu(ep->ref_tag); 1461 a_ref_tag = be32_to_cpu(ap->ref_tag); 1462 e_app_tag = be16_to_cpu(ep->app_tag); 1463 a_app_tag = be16_to_cpu(ap->app_tag); 1464 e_guard = be16_to_cpu(ep->guard); 1465 a_guard = be16_to_cpu(ap->guard); 1466 1467 DEBUG18(printk(KERN_DEBUG 1468 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24)); 1469 1470 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1471 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1472 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n", 1473 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1474 a_app_tag, e_app_tag, a_guard, e_guard)); 1475 1476 1477 /* check guard */ 1478 if (e_guard != a_guard) { 1479 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1480 0x10, 0x1); 1481 set_driver_byte(cmd, DRIVER_SENSE); 1482 set_host_byte(cmd, DID_ABORT); 1483 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1484 return; 1485 } 1486 1487 /* check appl tag */ 1488 if (e_app_tag != a_app_tag) { 1489 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1490 0x10, 0x2); 1491 set_driver_byte(cmd, DRIVER_SENSE); 1492 set_host_byte(cmd, DID_ABORT); 1493 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1494 return; 1495 } 1496 1497 /* check ref tag */ 1498 if (e_ref_tag != a_ref_tag) { 1499 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1500 0x10, 0x3); 1501 set_driver_byte(cmd, DRIVER_SENSE); 1502 set_host_byte(cmd, DID_ABORT); 1503 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1504 return; 1505 } 1506 } 1507 1508 /** 1509 * qla2x00_status_entry() - Process a Status IOCB entry. 1510 * @ha: SCSI driver HA context 1511 * @pkt: Entry pointer 1512 */ 1513 static void 1514 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 1515 { 1516 srb_t *sp; 1517 fc_port_t *fcport; 1518 struct scsi_cmnd *cp; 1519 sts_entry_t *sts; 1520 struct sts_entry_24xx *sts24; 1521 uint16_t comp_status; 1522 uint16_t scsi_status; 1523 uint16_t ox_id; 1524 uint8_t lscsi_status; 1525 int32_t resid; 1526 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 1527 fw_resid_len; 1528 uint8_t *rsp_info, *sense_data; 1529 struct qla_hw_data *ha = vha->hw; 1530 uint32_t handle; 1531 uint16_t que; 1532 struct req_que *req; 1533 int logit = 1; 1534 1535 sts = (sts_entry_t *) pkt; 1536 sts24 = (struct sts_entry_24xx *) pkt; 1537 if (IS_FWI2_CAPABLE(ha)) { 1538 comp_status = le16_to_cpu(sts24->comp_status); 1539 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1540 } else { 1541 comp_status = le16_to_cpu(sts->comp_status); 1542 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1543 } 1544 handle = (uint32_t) LSW(sts->handle); 1545 que = MSW(sts->handle); 1546 req = ha->req_q_map[que]; 1547 1548 /* Fast path completion. */ 1549 if (comp_status == CS_COMPLETE && scsi_status == 0) { 1550 qla2x00_process_completed_request(vha, req, handle); 1551 1552 return; 1553 } 1554 1555 /* Validate handle. */ 1556 if (handle < MAX_OUTSTANDING_COMMANDS) { 1557 sp = req->outstanding_cmds[handle]; 1558 req->outstanding_cmds[handle] = NULL; 1559 } else 1560 sp = NULL; 1561 1562 if (sp == NULL) { 1563 qla_printk(KERN_WARNING, ha, 1564 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no, 1565 sts->handle); 1566 1567 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1568 qla2xxx_wake_dpc(vha); 1569 return; 1570 } 1571 cp = sp->cmd; 1572 if (cp == NULL) { 1573 qla_printk(KERN_WARNING, ha, 1574 "scsi(%ld): Command already returned (0x%x/%p).\n", 1575 vha->host_no, sts->handle, sp); 1576 1577 return; 1578 } 1579 1580 lscsi_status = scsi_status & STATUS_MASK; 1581 1582 fcport = sp->fcport; 1583 1584 ox_id = 0; 1585 sense_len = par_sense_len = rsp_info_len = resid_len = 1586 fw_resid_len = 0; 1587 if (IS_FWI2_CAPABLE(ha)) { 1588 if (scsi_status & SS_SENSE_LEN_VALID) 1589 sense_len = le32_to_cpu(sts24->sense_len); 1590 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 1591 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 1592 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 1593 resid_len = le32_to_cpu(sts24->rsp_residual_count); 1594 if (comp_status == CS_DATA_UNDERRUN) 1595 fw_resid_len = le32_to_cpu(sts24->residual_len); 1596 rsp_info = sts24->data; 1597 sense_data = sts24->data; 1598 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 1599 ox_id = le16_to_cpu(sts24->ox_id); 1600 par_sense_len = sizeof(sts24->data); 1601 } else { 1602 if (scsi_status & SS_SENSE_LEN_VALID) 1603 sense_len = le16_to_cpu(sts->req_sense_length); 1604 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 1605 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 1606 resid_len = le32_to_cpu(sts->residual_length); 1607 rsp_info = sts->rsp_info; 1608 sense_data = sts->req_sense_data; 1609 par_sense_len = sizeof(sts->req_sense_data); 1610 } 1611 1612 /* Check for any FCP transport errors. */ 1613 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 1614 /* Sense data lies beyond any FCP RESPONSE data. */ 1615 if (IS_FWI2_CAPABLE(ha)) { 1616 sense_data += rsp_info_len; 1617 par_sense_len -= rsp_info_len; 1618 } 1619 if (rsp_info_len > 3 && rsp_info[3]) { 1620 DEBUG2(qla_printk(KERN_INFO, ha, 1621 "scsi(%ld:%d:%d): FCP I/O protocol failure " 1622 "(0x%x/0x%x).\n", vha->host_no, cp->device->id, 1623 cp->device->lun, rsp_info_len, rsp_info[3])); 1624 1625 cp->result = DID_BUS_BUSY << 16; 1626 goto out; 1627 } 1628 } 1629 1630 /* Check for overrun. */ 1631 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 1632 scsi_status & SS_RESIDUAL_OVER) 1633 comp_status = CS_DATA_OVERRUN; 1634 1635 /* 1636 * Based on Host and scsi status generate status code for Linux 1637 */ 1638 switch (comp_status) { 1639 case CS_COMPLETE: 1640 case CS_QUEUE_FULL: 1641 if (scsi_status == 0) { 1642 cp->result = DID_OK << 16; 1643 break; 1644 } 1645 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 1646 resid = resid_len; 1647 scsi_set_resid(cp, resid); 1648 1649 if (!lscsi_status && 1650 ((unsigned)(scsi_bufflen(cp) - resid) < 1651 cp->underflow)) { 1652 qla_printk(KERN_INFO, ha, 1653 "scsi(%ld:%d:%d): Mid-layer underflow " 1654 "detected (0x%x of 0x%x bytes).\n", 1655 vha->host_no, cp->device->id, 1656 cp->device->lun, resid, scsi_bufflen(cp)); 1657 1658 cp->result = DID_ERROR << 16; 1659 break; 1660 } 1661 } 1662 cp->result = DID_OK << 16 | lscsi_status; 1663 1664 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1665 DEBUG2(qla_printk(KERN_INFO, ha, 1666 "scsi(%ld:%d:%d) QUEUE FULL detected.\n", 1667 vha->host_no, cp->device->id, cp->device->lun)); 1668 break; 1669 } 1670 logit = 0; 1671 if (lscsi_status != SS_CHECK_CONDITION) 1672 break; 1673 1674 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1675 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1676 break; 1677 1678 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 1679 rsp); 1680 break; 1681 1682 case CS_DATA_UNDERRUN: 1683 /* Use F/W calculated residual length. */ 1684 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 1685 scsi_set_resid(cp, resid); 1686 if (scsi_status & SS_RESIDUAL_UNDER) { 1687 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 1688 DEBUG2(qla_printk(KERN_INFO, ha, 1689 "scsi(%ld:%d:%d) Dropped frame(s) detected " 1690 "(0x%x of 0x%x bytes).\n", vha->host_no, 1691 cp->device->id, cp->device->lun, resid, 1692 scsi_bufflen(cp))); 1693 1694 cp->result = DID_ERROR << 16 | lscsi_status; 1695 break; 1696 } 1697 1698 if (!lscsi_status && 1699 ((unsigned)(scsi_bufflen(cp) - resid) < 1700 cp->underflow)) { 1701 qla_printk(KERN_INFO, ha, 1702 "scsi(%ld:%d:%d): Mid-layer underflow " 1703 "detected (0x%x of 0x%x bytes).\n", 1704 vha->host_no, cp->device->id, 1705 cp->device->lun, resid, scsi_bufflen(cp)); 1706 1707 cp->result = DID_ERROR << 16; 1708 break; 1709 } 1710 } else { 1711 DEBUG2(qla_printk(KERN_INFO, ha, 1712 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x " 1713 "of 0x%x bytes).\n", vha->host_no, cp->device->id, 1714 cp->device->lun, resid, scsi_bufflen(cp))); 1715 1716 cp->result = DID_ERROR << 16 | lscsi_status; 1717 goto check_scsi_status; 1718 } 1719 1720 cp->result = DID_OK << 16 | lscsi_status; 1721 logit = 0; 1722 1723 check_scsi_status: 1724 /* 1725 * Check to see if SCSI Status is non zero. If so report SCSI 1726 * Status. 1727 */ 1728 if (lscsi_status != 0) { 1729 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1730 DEBUG2(qla_printk(KERN_INFO, ha, 1731 "scsi(%ld:%d:%d) QUEUE FULL detected.\n", 1732 vha->host_no, cp->device->id, 1733 cp->device->lun)); 1734 logit = 1; 1735 break; 1736 } 1737 if (lscsi_status != SS_CHECK_CONDITION) 1738 break; 1739 1740 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1741 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1742 break; 1743 1744 qla2x00_handle_sense(sp, sense_data, par_sense_len, 1745 sense_len, rsp); 1746 } 1747 break; 1748 1749 case CS_PORT_LOGGED_OUT: 1750 case CS_PORT_CONFIG_CHG: 1751 case CS_PORT_BUSY: 1752 case CS_INCOMPLETE: 1753 case CS_PORT_UNAVAILABLE: 1754 case CS_TIMEOUT: 1755 case CS_RESET: 1756 1757 /* 1758 * We are going to have the fc class block the rport 1759 * while we try to recover so instruct the mid layer 1760 * to requeue until the class decides how to handle this. 1761 */ 1762 cp->result = DID_TRANSPORT_DISRUPTED << 16; 1763 1764 if (comp_status == CS_TIMEOUT) { 1765 if (IS_FWI2_CAPABLE(ha)) 1766 break; 1767 else if ((le16_to_cpu(sts->status_flags) & 1768 SF_LOGOUT_SENT) == 0) 1769 break; 1770 } 1771 1772 DEBUG2(qla_printk(KERN_INFO, ha, 1773 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n", 1774 vha->host_no, cp->device->id, cp->device->lun, 1775 atomic_read(&fcport->state))); 1776 1777 if (atomic_read(&fcport->state) == FCS_ONLINE) 1778 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 1779 break; 1780 1781 case CS_ABORTED: 1782 cp->result = DID_RESET << 16; 1783 break; 1784 1785 case CS_DIF_ERROR: 1786 qla2x00_handle_dif_error(sp, sts24); 1787 break; 1788 default: 1789 cp->result = DID_ERROR << 16; 1790 break; 1791 } 1792 1793 out: 1794 if (logit) 1795 DEBUG2(qla_printk(KERN_INFO, ha, 1796 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) " 1797 "oxid=0x%x cdb=%02x%02x%02x len=0x%x " 1798 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no, 1799 cp->device->id, cp->device->lun, comp_status, scsi_status, 1800 cp->result, ox_id, cp->cmnd[0], 1801 cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len, 1802 resid_len, fw_resid_len)); 1803 1804 if (rsp->status_srb == NULL) 1805 qla2x00_sp_compl(ha, sp); 1806 } 1807 1808 /** 1809 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 1810 * @ha: SCSI driver HA context 1811 * @pkt: Entry pointer 1812 * 1813 * Extended sense data. 1814 */ 1815 static void 1816 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 1817 { 1818 uint8_t sense_sz = 0; 1819 struct qla_hw_data *ha = rsp->hw; 1820 srb_t *sp = rsp->status_srb; 1821 struct scsi_cmnd *cp; 1822 1823 if (sp != NULL && sp->request_sense_length != 0) { 1824 cp = sp->cmd; 1825 if (cp == NULL) { 1826 DEBUG2(printk("%s(): Cmd already returned back to OS " 1827 "sp=%p.\n", __func__, sp)); 1828 qla_printk(KERN_INFO, ha, 1829 "cmd is NULL: already returned to OS (sp=%p)\n", 1830 sp); 1831 1832 rsp->status_srb = NULL; 1833 return; 1834 } 1835 1836 if (sp->request_sense_length > sizeof(pkt->data)) { 1837 sense_sz = sizeof(pkt->data); 1838 } else { 1839 sense_sz = sp->request_sense_length; 1840 } 1841 1842 /* Move sense data. */ 1843 if (IS_FWI2_CAPABLE(ha)) 1844 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 1845 memcpy(sp->request_sense_ptr, pkt->data, sense_sz); 1846 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); 1847 1848 sp->request_sense_ptr += sense_sz; 1849 sp->request_sense_length -= sense_sz; 1850 1851 /* Place command on done queue. */ 1852 if (sp->request_sense_length == 0) { 1853 rsp->status_srb = NULL; 1854 qla2x00_sp_compl(ha, sp); 1855 } 1856 } 1857 } 1858 1859 /** 1860 * qla2x00_error_entry() - Process an error entry. 1861 * @ha: SCSI driver HA context 1862 * @pkt: Entry pointer 1863 */ 1864 static void 1865 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 1866 { 1867 srb_t *sp; 1868 struct qla_hw_data *ha = vha->hw; 1869 uint32_t handle = LSW(pkt->handle); 1870 uint16_t que = MSW(pkt->handle); 1871 struct req_que *req = ha->req_q_map[que]; 1872 #if defined(QL_DEBUG_LEVEL_2) 1873 if (pkt->entry_status & RF_INV_E_ORDER) 1874 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); 1875 else if (pkt->entry_status & RF_INV_E_COUNT) 1876 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); 1877 else if (pkt->entry_status & RF_INV_E_PARAM) 1878 qla_printk(KERN_ERR, ha, 1879 "%s: Invalid Entry Parameter\n", __func__); 1880 else if (pkt->entry_status & RF_INV_E_TYPE) 1881 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); 1882 else if (pkt->entry_status & RF_BUSY) 1883 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); 1884 else 1885 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); 1886 #endif 1887 1888 /* Validate handle. */ 1889 if (handle < MAX_OUTSTANDING_COMMANDS) 1890 sp = req->outstanding_cmds[handle]; 1891 else 1892 sp = NULL; 1893 1894 if (sp) { 1895 /* Free outstanding command slot. */ 1896 req->outstanding_cmds[handle] = NULL; 1897 1898 /* Bad payload or header */ 1899 if (pkt->entry_status & 1900 (RF_INV_E_ORDER | RF_INV_E_COUNT | 1901 RF_INV_E_PARAM | RF_INV_E_TYPE)) { 1902 sp->cmd->result = DID_ERROR << 16; 1903 } else if (pkt->entry_status & RF_BUSY) { 1904 sp->cmd->result = DID_BUS_BUSY << 16; 1905 } else { 1906 sp->cmd->result = DID_ERROR << 16; 1907 } 1908 qla2x00_sp_compl(ha, sp); 1909 1910 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == 1911 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { 1912 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", 1913 vha->host_no)); 1914 qla_printk(KERN_WARNING, ha, 1915 "Error entry - invalid handle\n"); 1916 1917 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1918 qla2xxx_wake_dpc(vha); 1919 } 1920 } 1921 1922 /** 1923 * qla24xx_mbx_completion() - Process mailbox command completions. 1924 * @ha: SCSI driver HA context 1925 * @mb0: Mailbox0 register 1926 */ 1927 static void 1928 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 1929 { 1930 uint16_t cnt; 1931 uint16_t __iomem *wptr; 1932 struct qla_hw_data *ha = vha->hw; 1933 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1934 1935 /* Load return mailbox registers. */ 1936 ha->flags.mbox_int = 1; 1937 ha->mailbox_out[0] = mb0; 1938 wptr = (uint16_t __iomem *)®->mailbox1; 1939 1940 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 1941 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 1942 wptr++; 1943 } 1944 1945 if (ha->mcp) { 1946 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 1947 __func__, vha->host_no, ha->mcp->mb[0])); 1948 } else { 1949 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 1950 __func__, vha->host_no)); 1951 } 1952 } 1953 1954 /** 1955 * qla24xx_process_response_queue() - Process response queue entries. 1956 * @ha: SCSI driver HA context 1957 */ 1958 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 1959 struct rsp_que *rsp) 1960 { 1961 struct sts_entry_24xx *pkt; 1962 struct qla_hw_data *ha = vha->hw; 1963 1964 if (!vha->flags.online) 1965 return; 1966 1967 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1968 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 1969 1970 rsp->ring_index++; 1971 if (rsp->ring_index == rsp->length) { 1972 rsp->ring_index = 0; 1973 rsp->ring_ptr = rsp->ring; 1974 } else { 1975 rsp->ring_ptr++; 1976 } 1977 1978 if (pkt->entry_status != 0) { 1979 DEBUG3(printk(KERN_INFO 1980 "scsi(%ld): Process error entry.\n", vha->host_no)); 1981 1982 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 1983 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1984 wmb(); 1985 continue; 1986 } 1987 1988 switch (pkt->entry_type) { 1989 case STATUS_TYPE: 1990 qla2x00_status_entry(vha, rsp, pkt); 1991 break; 1992 case STATUS_CONT_TYPE: 1993 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1994 break; 1995 case VP_RPT_ID_IOCB_TYPE: 1996 qla24xx_report_id_acquisition(vha, 1997 (struct vp_rpt_id_entry_24xx *)pkt); 1998 break; 1999 case LOGINOUT_PORT_IOCB_TYPE: 2000 qla24xx_logio_entry(vha, rsp->req, 2001 (struct logio_entry_24xx *)pkt); 2002 break; 2003 case TSK_MGMT_IOCB_TYPE: 2004 qla24xx_tm_iocb_entry(vha, rsp->req, 2005 (struct tsk_mgmt_entry *)pkt); 2006 break; 2007 case CT_IOCB_TYPE: 2008 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2009 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags); 2010 break; 2011 case ELS_IOCB_TYPE: 2012 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2013 break; 2014 default: 2015 /* Type Not Supported. */ 2016 DEBUG4(printk(KERN_WARNING 2017 "scsi(%ld): Received unknown response pkt type %x " 2018 "entry status=%x.\n", 2019 vha->host_no, pkt->entry_type, pkt->entry_status)); 2020 break; 2021 } 2022 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2023 wmb(); 2024 } 2025 2026 /* Adjust ring index */ 2027 if (IS_QLA82XX(ha)) { 2028 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2029 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2030 } else 2031 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2032 } 2033 2034 static void 2035 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2036 { 2037 int rval; 2038 uint32_t cnt; 2039 struct qla_hw_data *ha = vha->hw; 2040 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2041 2042 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)) 2043 return; 2044 2045 rval = QLA_SUCCESS; 2046 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2047 RD_REG_DWORD(®->iobase_addr); 2048 WRT_REG_DWORD(®->iobase_window, 0x0001); 2049 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2050 rval == QLA_SUCCESS; cnt--) { 2051 if (cnt) { 2052 WRT_REG_DWORD(®->iobase_window, 0x0001); 2053 udelay(10); 2054 } else 2055 rval = QLA_FUNCTION_TIMEOUT; 2056 } 2057 if (rval == QLA_SUCCESS) 2058 goto next_test; 2059 2060 WRT_REG_DWORD(®->iobase_window, 0x0003); 2061 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2062 rval == QLA_SUCCESS; cnt--) { 2063 if (cnt) { 2064 WRT_REG_DWORD(®->iobase_window, 0x0003); 2065 udelay(10); 2066 } else 2067 rval = QLA_FUNCTION_TIMEOUT; 2068 } 2069 if (rval != QLA_SUCCESS) 2070 goto done; 2071 2072 next_test: 2073 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2074 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n"); 2075 2076 done: 2077 WRT_REG_DWORD(®->iobase_window, 0x0000); 2078 RD_REG_DWORD(®->iobase_window); 2079 } 2080 2081 /** 2082 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 2083 * @irq: 2084 * @dev_id: SCSI driver HA context 2085 * 2086 * Called by system whenever the host adapter generates an interrupt. 2087 * 2088 * Returns handled flag. 2089 */ 2090 irqreturn_t 2091 qla24xx_intr_handler(int irq, void *dev_id) 2092 { 2093 scsi_qla_host_t *vha; 2094 struct qla_hw_data *ha; 2095 struct device_reg_24xx __iomem *reg; 2096 int status; 2097 unsigned long iter; 2098 uint32_t stat; 2099 uint32_t hccr; 2100 uint16_t mb[4]; 2101 struct rsp_que *rsp; 2102 unsigned long flags; 2103 2104 rsp = (struct rsp_que *) dev_id; 2105 if (!rsp) { 2106 printk(KERN_INFO 2107 "%s(): NULL response queue pointer\n", __func__); 2108 return IRQ_NONE; 2109 } 2110 2111 ha = rsp->hw; 2112 reg = &ha->iobase->isp24; 2113 status = 0; 2114 2115 if (unlikely(pci_channel_offline(ha->pdev))) 2116 return IRQ_HANDLED; 2117 2118 spin_lock_irqsave(&ha->hardware_lock, flags); 2119 vha = pci_get_drvdata(ha->pdev); 2120 for (iter = 50; iter--; ) { 2121 stat = RD_REG_DWORD(®->host_status); 2122 if (stat & HSRX_RISC_PAUSED) { 2123 if (unlikely(pci_channel_offline(ha->pdev))) 2124 break; 2125 2126 hccr = RD_REG_DWORD(®->hccr); 2127 2128 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 2129 "Dumping firmware!\n", hccr); 2130 2131 qla2xxx_check_risc_status(vha); 2132 2133 ha->isp_ops->fw_dump(vha, 1); 2134 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2135 break; 2136 } else if ((stat & HSRX_RISC_INT) == 0) 2137 break; 2138 2139 switch (stat & 0xff) { 2140 case 0x1: 2141 case 0x2: 2142 case 0x10: 2143 case 0x11: 2144 qla24xx_mbx_completion(vha, MSW(stat)); 2145 status |= MBX_INTERRUPT; 2146 2147 break; 2148 case 0x12: 2149 mb[0] = MSW(stat); 2150 mb[1] = RD_REG_WORD(®->mailbox1); 2151 mb[2] = RD_REG_WORD(®->mailbox2); 2152 mb[3] = RD_REG_WORD(®->mailbox3); 2153 qla2x00_async_event(vha, rsp, mb); 2154 break; 2155 case 0x13: 2156 case 0x14: 2157 qla24xx_process_response_queue(vha, rsp); 2158 break; 2159 default: 2160 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2161 "(%d).\n", 2162 vha->host_no, stat & 0xff)); 2163 break; 2164 } 2165 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2166 RD_REG_DWORD_RELAXED(®->hccr); 2167 } 2168 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2169 2170 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2171 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2172 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2173 complete(&ha->mbx_intr_comp); 2174 } 2175 2176 return IRQ_HANDLED; 2177 } 2178 2179 static irqreturn_t 2180 qla24xx_msix_rsp_q(int irq, void *dev_id) 2181 { 2182 struct qla_hw_data *ha; 2183 struct rsp_que *rsp; 2184 struct device_reg_24xx __iomem *reg; 2185 struct scsi_qla_host *vha; 2186 unsigned long flags; 2187 2188 rsp = (struct rsp_que *) dev_id; 2189 if (!rsp) { 2190 printk(KERN_INFO 2191 "%s(): NULL response queue pointer\n", __func__); 2192 return IRQ_NONE; 2193 } 2194 ha = rsp->hw; 2195 reg = &ha->iobase->isp24; 2196 2197 spin_lock_irqsave(&ha->hardware_lock, flags); 2198 2199 vha = pci_get_drvdata(ha->pdev); 2200 qla24xx_process_response_queue(vha, rsp); 2201 if (!ha->flags.disable_msix_handshake) { 2202 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2203 RD_REG_DWORD_RELAXED(®->hccr); 2204 } 2205 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2206 2207 return IRQ_HANDLED; 2208 } 2209 2210 static irqreturn_t 2211 qla25xx_msix_rsp_q(int irq, void *dev_id) 2212 { 2213 struct qla_hw_data *ha; 2214 struct rsp_que *rsp; 2215 struct device_reg_24xx __iomem *reg; 2216 unsigned long flags; 2217 2218 rsp = (struct rsp_que *) dev_id; 2219 if (!rsp) { 2220 printk(KERN_INFO 2221 "%s(): NULL response queue pointer\n", __func__); 2222 return IRQ_NONE; 2223 } 2224 ha = rsp->hw; 2225 2226 /* Clear the interrupt, if enabled, for this response queue */ 2227 if (rsp->options & ~BIT_6) { 2228 reg = &ha->iobase->isp24; 2229 spin_lock_irqsave(&ha->hardware_lock, flags); 2230 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2231 RD_REG_DWORD_RELAXED(®->hccr); 2232 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2233 } 2234 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2235 2236 return IRQ_HANDLED; 2237 } 2238 2239 static irqreturn_t 2240 qla24xx_msix_default(int irq, void *dev_id) 2241 { 2242 scsi_qla_host_t *vha; 2243 struct qla_hw_data *ha; 2244 struct rsp_que *rsp; 2245 struct device_reg_24xx __iomem *reg; 2246 int status; 2247 uint32_t stat; 2248 uint32_t hccr; 2249 uint16_t mb[4]; 2250 unsigned long flags; 2251 2252 rsp = (struct rsp_que *) dev_id; 2253 if (!rsp) { 2254 DEBUG(printk( 2255 "%s(): NULL response queue pointer\n", __func__)); 2256 return IRQ_NONE; 2257 } 2258 ha = rsp->hw; 2259 reg = &ha->iobase->isp24; 2260 status = 0; 2261 2262 spin_lock_irqsave(&ha->hardware_lock, flags); 2263 vha = pci_get_drvdata(ha->pdev); 2264 do { 2265 stat = RD_REG_DWORD(®->host_status); 2266 if (stat & HSRX_RISC_PAUSED) { 2267 if (unlikely(pci_channel_offline(ha->pdev))) 2268 break; 2269 2270 hccr = RD_REG_DWORD(®->hccr); 2271 2272 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 2273 "Dumping firmware!\n", hccr); 2274 2275 qla2xxx_check_risc_status(vha); 2276 2277 ha->isp_ops->fw_dump(vha, 1); 2278 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2279 break; 2280 } else if ((stat & HSRX_RISC_INT) == 0) 2281 break; 2282 2283 switch (stat & 0xff) { 2284 case 0x1: 2285 case 0x2: 2286 case 0x10: 2287 case 0x11: 2288 qla24xx_mbx_completion(vha, MSW(stat)); 2289 status |= MBX_INTERRUPT; 2290 2291 break; 2292 case 0x12: 2293 mb[0] = MSW(stat); 2294 mb[1] = RD_REG_WORD(®->mailbox1); 2295 mb[2] = RD_REG_WORD(®->mailbox2); 2296 mb[3] = RD_REG_WORD(®->mailbox3); 2297 qla2x00_async_event(vha, rsp, mb); 2298 break; 2299 case 0x13: 2300 case 0x14: 2301 qla24xx_process_response_queue(vha, rsp); 2302 break; 2303 default: 2304 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2305 "(%d).\n", 2306 vha->host_no, stat & 0xff)); 2307 break; 2308 } 2309 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2310 } while (0); 2311 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2312 2313 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2314 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2315 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2316 complete(&ha->mbx_intr_comp); 2317 } 2318 return IRQ_HANDLED; 2319 } 2320 2321 /* Interrupt handling helpers. */ 2322 2323 struct qla_init_msix_entry { 2324 const char *name; 2325 irq_handler_t handler; 2326 }; 2327 2328 static struct qla_init_msix_entry msix_entries[3] = { 2329 { "qla2xxx (default)", qla24xx_msix_default }, 2330 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 2331 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 2332 }; 2333 2334 static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 2335 { "qla2xxx (default)", qla82xx_msix_default }, 2336 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 2337 }; 2338 2339 static void 2340 qla24xx_disable_msix(struct qla_hw_data *ha) 2341 { 2342 int i; 2343 struct qla_msix_entry *qentry; 2344 2345 for (i = 0; i < ha->msix_count; i++) { 2346 qentry = &ha->msix_entries[i]; 2347 if (qentry->have_irq) 2348 free_irq(qentry->vector, qentry->rsp); 2349 } 2350 pci_disable_msix(ha->pdev); 2351 kfree(ha->msix_entries); 2352 ha->msix_entries = NULL; 2353 ha->flags.msix_enabled = 0; 2354 } 2355 2356 static int 2357 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 2358 { 2359 #define MIN_MSIX_COUNT 2 2360 int i, ret; 2361 struct msix_entry *entries; 2362 struct qla_msix_entry *qentry; 2363 2364 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 2365 GFP_KERNEL); 2366 if (!entries) 2367 return -ENOMEM; 2368 2369 for (i = 0; i < ha->msix_count; i++) 2370 entries[i].entry = i; 2371 2372 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); 2373 if (ret) { 2374 if (ret < MIN_MSIX_COUNT) 2375 goto msix_failed; 2376 2377 qla_printk(KERN_WARNING, ha, 2378 "MSI-X: Failed to enable support -- %d/%d\n" 2379 " Retry with %d vectors\n", ha->msix_count, ret, ret); 2380 ha->msix_count = ret; 2381 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); 2382 if (ret) { 2383 msix_failed: 2384 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable" 2385 " support, giving up -- %d/%d\n", 2386 ha->msix_count, ret); 2387 goto msix_out; 2388 } 2389 ha->max_rsp_queues = ha->msix_count - 1; 2390 } 2391 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 2392 ha->msix_count, GFP_KERNEL); 2393 if (!ha->msix_entries) { 2394 ret = -ENOMEM; 2395 goto msix_out; 2396 } 2397 ha->flags.msix_enabled = 1; 2398 2399 for (i = 0; i < ha->msix_count; i++) { 2400 qentry = &ha->msix_entries[i]; 2401 qentry->vector = entries[i].vector; 2402 qentry->entry = entries[i].entry; 2403 qentry->have_irq = 0; 2404 qentry->rsp = NULL; 2405 } 2406 2407 /* Enable MSI-X vectors for the base queue */ 2408 for (i = 0; i < 2; i++) { 2409 qentry = &ha->msix_entries[i]; 2410 if (IS_QLA82XX(ha)) { 2411 ret = request_irq(qentry->vector, 2412 qla82xx_msix_entries[i].handler, 2413 0, qla82xx_msix_entries[i].name, rsp); 2414 } else { 2415 ret = request_irq(qentry->vector, 2416 msix_entries[i].handler, 2417 0, msix_entries[i].name, rsp); 2418 } 2419 if (ret) { 2420 qla_printk(KERN_WARNING, ha, 2421 "MSI-X: Unable to register handler -- %x/%d.\n", 2422 qentry->vector, ret); 2423 qla24xx_disable_msix(ha); 2424 ha->mqenable = 0; 2425 goto msix_out; 2426 } 2427 qentry->have_irq = 1; 2428 qentry->rsp = rsp; 2429 rsp->msix = qentry; 2430 } 2431 2432 /* Enable MSI-X vector for response queue update for queue 0 */ 2433 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 2434 ha->mqenable = 1; 2435 2436 msix_out: 2437 kfree(entries); 2438 return ret; 2439 } 2440 2441 int 2442 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 2443 { 2444 int ret; 2445 device_reg_t __iomem *reg = ha->iobase; 2446 2447 /* If possible, enable MSI-X. */ 2448 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && 2449 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha)) 2450 goto skip_msi; 2451 2452 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 2453 (ha->pdev->subsystem_device == 0x7040 || 2454 ha->pdev->subsystem_device == 0x7041 || 2455 ha->pdev->subsystem_device == 0x1705)) { 2456 DEBUG2(qla_printk(KERN_WARNING, ha, 2457 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n", 2458 ha->pdev->subsystem_vendor, 2459 ha->pdev->subsystem_device)); 2460 goto skip_msi; 2461 } 2462 2463 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX || 2464 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { 2465 DEBUG2(qla_printk(KERN_WARNING, ha, 2466 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", 2467 ha->pdev->revision, ha->fw_attributes)); 2468 goto skip_msix; 2469 } 2470 2471 ret = qla24xx_enable_msix(ha, rsp); 2472 if (!ret) { 2473 DEBUG2(qla_printk(KERN_INFO, ha, 2474 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, 2475 ha->fw_attributes)); 2476 goto clear_risc_ints; 2477 } 2478 qla_printk(KERN_WARNING, ha, 2479 "MSI-X: Falling back-to MSI mode -- %d.\n", ret); 2480 skip_msix: 2481 2482 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 2483 !IS_QLA8001(ha)) 2484 goto skip_msi; 2485 2486 ret = pci_enable_msi(ha->pdev); 2487 if (!ret) { 2488 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); 2489 ha->flags.msi_enabled = 1; 2490 } else 2491 qla_printk(KERN_WARNING, ha, 2492 "MSI-X: Falling back-to INTa mode -- %d.\n", ret); 2493 skip_msi: 2494 2495 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 2496 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 2497 QLA2XXX_DRIVER_NAME, rsp); 2498 if (ret) { 2499 qla_printk(KERN_WARNING, ha, 2500 "Failed to reserve interrupt %d already in use.\n", 2501 ha->pdev->irq); 2502 goto fail; 2503 } 2504 2505 clear_risc_ints: 2506 2507 /* 2508 * FIXME: Noted that 8014s were being dropped during NK testing. 2509 * Timing deltas during MSI-X/INTa transitions? 2510 */ 2511 if (IS_QLA81XX(ha) || IS_QLA82XX(ha)) 2512 goto fail; 2513 spin_lock_irq(&ha->hardware_lock); 2514 if (IS_FWI2_CAPABLE(ha)) { 2515 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); 2516 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); 2517 } else { 2518 WRT_REG_WORD(®->isp.semaphore, 0); 2519 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); 2520 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); 2521 } 2522 spin_unlock_irq(&ha->hardware_lock); 2523 2524 fail: 2525 return ret; 2526 } 2527 2528 void 2529 qla2x00_free_irqs(scsi_qla_host_t *vha) 2530 { 2531 struct qla_hw_data *ha = vha->hw; 2532 struct rsp_que *rsp = ha->rsp_q_map[0]; 2533 2534 if (ha->flags.msix_enabled) 2535 qla24xx_disable_msix(ha); 2536 else if (ha->flags.msi_enabled) { 2537 free_irq(ha->pdev->irq, rsp); 2538 pci_disable_msi(ha->pdev); 2539 } else 2540 free_irq(ha->pdev->irq, rsp); 2541 } 2542 2543 2544 int qla25xx_request_irq(struct rsp_que *rsp) 2545 { 2546 struct qla_hw_data *ha = rsp->hw; 2547 struct qla_init_msix_entry *intr = &msix_entries[2]; 2548 struct qla_msix_entry *msix = rsp->msix; 2549 int ret; 2550 2551 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 2552 if (ret) { 2553 qla_printk(KERN_WARNING, ha, 2554 "MSI-X: Unable to register handler -- %x/%d.\n", 2555 msix->vector, ret); 2556 return ret; 2557 } 2558 msix->have_irq = 1; 2559 msix->rsp = rsp; 2560 return ret; 2561 } 2562