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