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 15static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 16static void qla2x00_process_completed_request(struct scsi_qla_host *, 17 struct req_que *, uint32_t); 18static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 19static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 20static 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 */ 32irqreturn_t 33qla2100_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 */ 128irqreturn_t 129qla2300_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 */ 240static void 241qla2x00_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 273static void 274qla81xx_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 */ 312void 313qla2x00_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 } 383skip_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 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 417 } else if (mb[1] == 0) { 418 qla_printk(KERN_INFO, ha, 419 "Unrecoverable Hardware Error: adapter marked " 420 "OFFLINE!\n"); 421 vha->flags.online = 0; 422 } else 423 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 424 break; 425 426 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 427 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n", 428 vha->host_no, mb[1])); 429 qla_printk(KERN_WARNING, ha, 430 "ISP Request Transfer Error (%x).\n", mb[1]); 431 432 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 433 break; 434 435 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 436 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", 437 vha->host_no)); 438 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); 439 440 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 441 break; 442 443 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 444 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", 445 vha->host_no)); 446 break; 447 448 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 449 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no, 450 mb[1])); 451 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]); 452 453 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 454 atomic_set(&vha->loop_state, LOOP_DOWN); 455 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 456 qla2x00_mark_all_devices_lost(vha, 1); 457 } 458 459 if (vha->vp_idx) { 460 atomic_set(&vha->vp_state, VP_FAILED); 461 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 462 } 463 464 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 465 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 466 467 vha->flags.management_server_logged_in = 0; 468 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 469 break; 470 471 case MBA_LOOP_UP: /* Loop Up Event */ 472 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 473 link_speed = link_speeds[0]; 474 ha->link_data_rate = PORT_SPEED_1GB; 475 } else { 476 link_speed = link_speeds[LS_UNKNOWN]; 477 if (mb[1] < 5) 478 link_speed = link_speeds[mb[1]]; 479 else if (mb[1] == 0x13) 480 link_speed = link_speeds[5]; 481 ha->link_data_rate = mb[1]; 482 } 483 484 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", 485 vha->host_no, link_speed)); 486 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", 487 link_speed); 488 489 vha->flags.management_server_logged_in = 0; 490 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 491 break; 492 493 case MBA_LOOP_DOWN: /* Loop Down Event */ 494 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox4) : 0; 495 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN " 496 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3], 497 mbx)); 498 qla_printk(KERN_INFO, ha, 499 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3], 500 mbx); 501 502 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 503 atomic_set(&vha->loop_state, LOOP_DOWN); 504 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 505 vha->device_flags |= DFLG_NO_CABLE; 506 qla2x00_mark_all_devices_lost(vha, 1); 507 } 508 509 if (vha->vp_idx) { 510 atomic_set(&vha->vp_state, VP_FAILED); 511 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 512 } 513 514 vha->flags.management_server_logged_in = 0; 515 ha->link_data_rate = PORT_SPEED_UNKNOWN; 516 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 517 break; 518 519 case MBA_LIP_RESET: /* LIP reset occurred */ 520 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", 521 vha->host_no, mb[1])); 522 qla_printk(KERN_INFO, ha, 523 "LIP reset occurred (%x).\n", mb[1]); 524 525 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 526 atomic_set(&vha->loop_state, LOOP_DOWN); 527 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 528 qla2x00_mark_all_devices_lost(vha, 1); 529 } 530 531 if (vha->vp_idx) { 532 atomic_set(&vha->vp_state, VP_FAILED); 533 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 534 } 535 536 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 537 538 ha->operating_mode = LOOP; 539 vha->flags.management_server_logged_in = 0; 540 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 541 break; 542 543 /* case MBA_DCBX_COMPLETE: */ 544 case MBA_POINT_TO_POINT: /* Point-to-Point */ 545 if (IS_QLA2100(ha)) 546 break; 547 548 if (IS_QLA8XXX_TYPE(ha)) { 549 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x " 550 "%04x\n", vha->host_no, mb[1], mb[2], mb[3])); 551 if (ha->notify_dcbx_comp) 552 complete(&ha->dcbx_comp); 553 554 } else 555 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE " 556 "received.\n", vha->host_no)); 557 558 /* 559 * Until there's a transition from loop down to loop up, treat 560 * this as loop down only. 561 */ 562 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 563 atomic_set(&vha->loop_state, LOOP_DOWN); 564 if (!atomic_read(&vha->loop_down_timer)) 565 atomic_set(&vha->loop_down_timer, 566 LOOP_DOWN_TIME); 567 qla2x00_mark_all_devices_lost(vha, 1); 568 } 569 570 if (vha->vp_idx) { 571 atomic_set(&vha->vp_state, VP_FAILED); 572 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 573 } 574 575 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 576 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 577 578 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 579 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 580 581 ha->flags.gpsc_supported = 1; 582 vha->flags.management_server_logged_in = 0; 583 break; 584 585 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 586 if (IS_QLA2100(ha)) 587 break; 588 589 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " 590 "received.\n", 591 vha->host_no)); 592 qla_printk(KERN_INFO, ha, 593 "Configuration change detected: value=%x.\n", mb[1]); 594 595 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 596 atomic_set(&vha->loop_state, LOOP_DOWN); 597 if (!atomic_read(&vha->loop_down_timer)) 598 atomic_set(&vha->loop_down_timer, 599 LOOP_DOWN_TIME); 600 qla2x00_mark_all_devices_lost(vha, 1); 601 } 602 603 if (vha->vp_idx) { 604 atomic_set(&vha->vp_state, VP_FAILED); 605 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 606 } 607 608 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 609 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 610 break; 611 612 case MBA_PORT_UPDATE: /* Port database update */ 613 /* 614 * Handle only global and vn-port update events 615 * 616 * Relevant inputs: 617 * mb[1] = N_Port handle of changed port 618 * OR 0xffff for global event 619 * mb[2] = New login state 620 * 7 = Port logged out 621 * mb[3] = LSB is vp_idx, 0xff = all vps 622 * 623 * Skip processing if: 624 * Event is global, vp_idx is NOT all vps, 625 * vp_idx does not match 626 * Event is not global, vp_idx does not match 627 */ 628 if (IS_QLA2XXX_MIDTYPE(ha) && 629 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 630 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 631 break; 632 633 /* Global event -- port logout or port unavailable. */ 634 if (mb[1] == 0xffff && mb[2] == 0x7) { 635 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 636 vha->host_no)); 637 DEBUG(printk(KERN_INFO 638 "scsi(%ld): Port unavailable %04x %04x %04x.\n", 639 vha->host_no, mb[1], mb[2], mb[3])); 640 641 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 642 atomic_set(&vha->loop_state, LOOP_DOWN); 643 atomic_set(&vha->loop_down_timer, 644 LOOP_DOWN_TIME); 645 vha->device_flags |= DFLG_NO_CABLE; 646 qla2x00_mark_all_devices_lost(vha, 1); 647 } 648 649 if (vha->vp_idx) { 650 atomic_set(&vha->vp_state, VP_FAILED); 651 fc_vport_set_state(vha->fc_vport, 652 FC_VPORT_FAILED); 653 qla2x00_mark_all_devices_lost(vha, 1); 654 } 655 656 vha->flags.management_server_logged_in = 0; 657 ha->link_data_rate = PORT_SPEED_UNKNOWN; 658 break; 659 } 660 661 /* 662 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 663 * event etc. earlier indicating loop is down) then process 664 * it. Otherwise ignore it and Wait for RSCN to come in. 665 */ 666 atomic_set(&vha->loop_down_timer, 0); 667 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 668 atomic_read(&vha->loop_state) != LOOP_DEAD) { 669 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " 670 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1], 671 mb[2], mb[3])); 672 break; 673 } 674 675 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 676 vha->host_no)); 677 DEBUG(printk(KERN_INFO 678 "scsi(%ld): Port database changed %04x %04x %04x.\n", 679 vha->host_no, mb[1], mb[2], mb[3])); 680 681 /* 682 * Mark all devices as missing so we will login again. 683 */ 684 atomic_set(&vha->loop_state, LOOP_UP); 685 686 qla2x00_mark_all_devices_lost(vha, 1); 687 688 vha->flags.rscn_queue_overflow = 1; 689 690 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 691 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 692 break; 693 694 case MBA_RSCN_UPDATE: /* State Change Registration */ 695 /* Check if the Vport has issued a SCR */ 696 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 697 break; 698 /* Only handle SCNs for our Vport index. */ 699 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 700 break; 701 702 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", 703 vha->host_no)); 704 DEBUG(printk(KERN_INFO 705 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", 706 vha->host_no, mb[1], mb[2], mb[3])); 707 708 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 709 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 710 | vha->d_id.b.al_pa; 711 if (rscn_entry == host_pid) { 712 DEBUG(printk(KERN_INFO 713 "scsi(%ld): Ignoring RSCN update to local host " 714 "port ID (%06x)\n", 715 vha->host_no, host_pid)); 716 break; 717 } 718 719 /* Ignore reserved bits from RSCN-payload. */ 720 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 721 rscn_queue_index = vha->rscn_in_ptr + 1; 722 if (rscn_queue_index == MAX_RSCN_COUNT) 723 rscn_queue_index = 0; 724 if (rscn_queue_index != vha->rscn_out_ptr) { 725 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry; 726 vha->rscn_in_ptr = rscn_queue_index; 727 } else { 728 vha->flags.rscn_queue_overflow = 1; 729 } 730 731 atomic_set(&vha->loop_state, LOOP_UPDATE); 732 atomic_set(&vha->loop_down_timer, 0); 733 vha->flags.management_server_logged_in = 0; 734 735 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 736 set_bit(RSCN_UPDATE, &vha->dpc_flags); 737 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 738 break; 739 740 /* case MBA_RIO_RESPONSE: */ 741 case MBA_ZIO_RESPONSE: 742 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n", 743 vha->host_no)); 744 745 if (IS_FWI2_CAPABLE(ha)) 746 qla24xx_process_response_queue(vha, rsp); 747 else 748 qla2x00_process_response_queue(rsp); 749 break; 750 751 case MBA_DISCARD_RND_FRAME: 752 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " 753 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); 754 break; 755 756 case MBA_TRACE_NOTIFICATION: 757 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", 758 vha->host_no, mb[1], mb[2])); 759 break; 760 761 case MBA_ISP84XX_ALERT: 762 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- " 763 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 764 765 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 766 switch (mb[1]) { 767 case A84_PANIC_RECOVERY: 768 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery " 769 "%04x %04x\n", mb[2], mb[3]); 770 break; 771 case A84_OP_LOGIN_COMPLETE: 772 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 773 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:" 774 "firmware version %x\n", ha->cs84xx->op_fw_version)); 775 break; 776 case A84_DIAG_LOGIN_COMPLETE: 777 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 778 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:" 779 "diagnostic firmware version %x\n", 780 ha->cs84xx->diag_fw_version)); 781 break; 782 case A84_GOLD_LOGIN_COMPLETE: 783 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 784 ha->cs84xx->fw_update = 1; 785 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold " 786 "firmware version %x\n", 787 ha->cs84xx->gold_fw_version)); 788 break; 789 default: 790 qla_printk(KERN_ERR, ha, 791 "Alert 84xx: Invalid Alert %04x %04x %04x\n", 792 mb[1], mb[2], mb[3]); 793 } 794 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 795 break; 796 case MBA_DCBX_START: 797 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n", 798 vha->host_no, mb[1], mb[2], mb[3])); 799 break; 800 case MBA_DCBX_PARAM_UPDATE: 801 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- " 802 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 803 break; 804 case MBA_FCF_CONF_ERR: 805 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- " 806 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 807 break; 808 case MBA_IDC_COMPLETE: 809 case MBA_IDC_NOTIFY: 810 case MBA_IDC_TIME_EXT: 811 qla81xx_idc_event(vha, mb[0], mb[1]); 812 break; 813 } 814 815 if (!vha->vp_idx && ha->num_vhosts) 816 qla2x00_alert_all_vps(rsp, mb); 817} 818 819/** 820 * qla2x00_process_completed_request() - Process a Fast Post response. 821 * @ha: SCSI driver HA context 822 * @index: SRB index 823 */ 824static void 825qla2x00_process_completed_request(struct scsi_qla_host *vha, 826 struct req_que *req, uint32_t index) 827{ 828 srb_t *sp; 829 struct qla_hw_data *ha = vha->hw; 830 831 /* Validate handle. */ 832 if (index >= MAX_OUTSTANDING_COMMANDS) { 833 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", 834 vha->host_no, index)); 835 qla_printk(KERN_WARNING, ha, 836 "Invalid SCSI completion handle %d.\n", index); 837 838 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 839 return; 840 } 841 842 sp = req->outstanding_cmds[index]; 843 if (sp) { 844 /* Free outstanding command slot. */ 845 req->outstanding_cmds[index] = NULL; 846 847 /* Save ISP completion status */ 848 sp->cmd->result = DID_OK << 16; 849 qla2x00_sp_compl(ha, sp); 850 } else { 851 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion" 852 " handle(0x%x)\n", vha->host_no, req->id, index)); 853 qla_printk(KERN_WARNING, ha, 854 "Invalid ISP SCSI completion handle\n"); 855 856 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 857 } 858} 859 860static srb_t * 861qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 862 struct req_que *req, void *iocb) 863{ 864 struct qla_hw_data *ha = vha->hw; 865 sts_entry_t *pkt = iocb; 866 srb_t *sp = NULL; 867 uint16_t index; 868 869 index = LSW(pkt->handle); 870 if (index >= MAX_OUTSTANDING_COMMANDS) { 871 qla_printk(KERN_WARNING, ha, 872 "%s: Invalid completion handle (%x).\n", func, index); 873 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 874 goto done; 875 } 876 sp = req->outstanding_cmds[index]; 877 if (!sp) { 878 qla_printk(KERN_WARNING, ha, 879 "%s: Invalid completion handle (%x) -- timed-out.\n", func, 880 index); 881 return sp; 882 } 883 if (sp->handle != index) { 884 qla_printk(KERN_WARNING, ha, 885 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle, 886 index); 887 return NULL; 888 } 889 890 req->outstanding_cmds[index] = NULL; 891 892done: 893 return sp; 894} 895 896static void 897qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 898 struct mbx_entry *mbx) 899{ 900 const char func[] = "MBX-IOCB"; 901 const char *type; 902 fc_port_t *fcport; 903 srb_t *sp; 904 struct srb_iocb *lio; 905 struct srb_ctx *ctx; 906 uint16_t *data; 907 uint16_t status; 908 909 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 910 if (!sp) 911 return; 912 913 ctx = sp->ctx; 914 lio = ctx->u.iocb_cmd; 915 type = ctx->name; 916 fcport = sp->fcport; 917 data = lio->u.logio.data; 918 919 data[0] = MBS_COMMAND_ERROR; 920 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 921 QLA_LOGIO_LOGIN_RETRIED : 0; 922 if (mbx->entry_status) { 923 DEBUG2(printk(KERN_WARNING 924 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x " 925 "entry-status=%x status=%x state-flag=%x " 926 "status-flags=%x.\n", 927 fcport->vha->host_no, sp->handle, type, 928 fcport->d_id.b.domain, fcport->d_id.b.area, 929 fcport->d_id.b.al_pa, mbx->entry_status, 930 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 931 le16_to_cpu(mbx->status_flags))); 932 933 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx))); 934 935 goto logio_done; 936 } 937 938 status = le16_to_cpu(mbx->status); 939 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD && 940 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 941 status = 0; 942 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 943 DEBUG2(printk(KERN_DEBUG 944 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " 945 "mbx1=%x.\n", 946 fcport->vha->host_no, sp->handle, type, 947 fcport->d_id.b.domain, fcport->d_id.b.area, 948 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1))); 949 950 data[0] = MBS_COMMAND_COMPLETE; 951 if (ctx->type == SRB_LOGIN_CMD) { 952 fcport->port_type = FCT_TARGET; 953 if (le16_to_cpu(mbx->mb1) & BIT_0) 954 fcport->port_type = FCT_INITIATOR; 955 else if (le16_to_cpu(mbx->mb1) & BIT_1) 956 fcport->flags |= FCF_FCP2_DEVICE; 957 } 958 goto logio_done; 959 } 960 961 data[0] = le16_to_cpu(mbx->mb0); 962 switch (data[0]) { 963 case MBS_PORT_ID_USED: 964 data[1] = le16_to_cpu(mbx->mb1); 965 break; 966 case MBS_LOOP_ID_USED: 967 break; 968 default: 969 data[0] = MBS_COMMAND_ERROR; 970 break; 971 } 972 973 DEBUG2(printk(KERN_WARNING 974 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x " 975 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", 976 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain, 977 fcport->d_id.b.area, fcport->d_id.b.al_pa, status, 978 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 979 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 980 le16_to_cpu(mbx->mb7))); 981 982logio_done: 983 lio->done(sp); 984} 985 986static void 987qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 988 sts_entry_t *pkt, int iocb_type) 989{ 990 const char func[] = "CT_IOCB"; 991 const char *type; 992 struct qla_hw_data *ha = vha->hw; 993 srb_t *sp; 994 struct srb_ctx *sp_bsg; 995 struct fc_bsg_job *bsg_job; 996 uint16_t comp_status; 997 998 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 999 if (!sp) 1000 return; 1001 1002 sp_bsg = sp->ctx; 1003 bsg_job = sp_bsg->u.bsg_job; 1004 1005 type = NULL; 1006 switch (sp_bsg->type) { 1007 case SRB_CT_CMD: 1008 type = "ct pass-through"; 1009 break; 1010 default: 1011 qla_printk(KERN_WARNING, ha, 1012 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, 1013 sp_bsg->type); 1014 return; 1015 } 1016 1017 comp_status = le16_to_cpu(pkt->comp_status); 1018 1019 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1020 * fc payload to the caller 1021 */ 1022 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1023 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1024 1025 if (comp_status != CS_COMPLETE) { 1026 if (comp_status == CS_DATA_UNDERRUN) { 1027 bsg_job->reply->result = DID_OK << 16; 1028 bsg_job->reply->reply_payload_rcv_len = 1029 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1030 1031 DEBUG2(qla_printk(KERN_WARNING, ha, 1032 "scsi(%ld): CT pass-through-%s error " 1033 "comp_status-status=0x%x total_byte = 0x%x.\n", 1034 vha->host_no, type, comp_status, 1035 bsg_job->reply->reply_payload_rcv_len)); 1036 } else { 1037 DEBUG2(qla_printk(KERN_WARNING, ha, 1038 "scsi(%ld): CT pass-through-%s error " 1039 "comp_status-status=0x%x.\n", 1040 vha->host_no, type, comp_status)); 1041 bsg_job->reply->result = DID_ERROR << 16; 1042 bsg_job->reply->reply_payload_rcv_len = 0; 1043 } 1044 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); 1045 } else { 1046 bsg_job->reply->result = DID_OK << 16;; 1047 bsg_job->reply->reply_payload_rcv_len = 1048 bsg_job->reply_payload.payload_len; 1049 bsg_job->reply_len = 0; 1050 } 1051 1052 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, 1053 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); 1054 1055 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, 1056 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); 1057 1058 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD) 1059 kfree(sp->fcport); 1060 1061 kfree(sp->ctx); 1062 mempool_free(sp, ha->srb_mempool); 1063 bsg_job->job_done(bsg_job); 1064} 1065 1066static void 1067qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1068 struct sts_entry_24xx *pkt, int iocb_type) 1069{ 1070 const char func[] = "ELS_CT_IOCB"; 1071 const char *type; 1072 struct qla_hw_data *ha = vha->hw; 1073 srb_t *sp; 1074 struct srb_ctx *sp_bsg; 1075 struct fc_bsg_job *bsg_job; 1076 uint16_t comp_status; 1077 uint32_t fw_status[3]; 1078 uint8_t* fw_sts_ptr; 1079 1080 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1081 if (!sp) 1082 return; 1083 sp_bsg = sp->ctx; 1084 bsg_job = sp_bsg->u.bsg_job; 1085 1086 type = NULL; 1087 switch (sp_bsg->type) { 1088 case SRB_ELS_CMD_RPT: 1089 case SRB_ELS_CMD_HST: 1090 type = "els"; 1091 break; 1092 case SRB_CT_CMD: 1093 type = "ct pass-through"; 1094 break; 1095 default: 1096 qla_printk(KERN_WARNING, ha, 1097 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, 1098 sp_bsg->type); 1099 return; 1100 } 1101 1102 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1103 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1104 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1105 1106 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1107 * fc payload to the caller 1108 */ 1109 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1110 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1111 1112 if (comp_status != CS_COMPLETE) { 1113 if (comp_status == CS_DATA_UNDERRUN) { 1114 bsg_job->reply->result = DID_OK << 16; 1115 bsg_job->reply->reply_payload_rcv_len = 1116 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count); 1117 1118 DEBUG2(qla_printk(KERN_WARNING, ha, 1119 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " 1120 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1121 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2], 1122 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count))); 1123 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1124 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1125 } 1126 else { 1127 DEBUG2(qla_printk(KERN_WARNING, ha, 1128 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " 1129 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1130 vha->host_no, sp->handle, type, comp_status, 1131 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1), 1132 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2))); 1133 bsg_job->reply->result = DID_ERROR << 16; 1134 bsg_job->reply->reply_payload_rcv_len = 0; 1135 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1136 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1137 } 1138 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); 1139 } 1140 else { 1141 bsg_job->reply->result = DID_OK << 16;; 1142 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1143 bsg_job->reply_len = 0; 1144 } 1145 1146 dma_unmap_sg(&ha->pdev->dev, 1147 bsg_job->request_payload.sg_list, 1148 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); 1149 dma_unmap_sg(&ha->pdev->dev, 1150 bsg_job->reply_payload.sg_list, 1151 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); 1152 if ((sp_bsg->type == SRB_ELS_CMD_HST) || 1153 (sp_bsg->type == SRB_CT_CMD)) 1154 kfree(sp->fcport); 1155 kfree(sp->ctx); 1156 mempool_free(sp, ha->srb_mempool); 1157 bsg_job->job_done(bsg_job); 1158} 1159 1160static void 1161qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1162 struct logio_entry_24xx *logio) 1163{ 1164 const char func[] = "LOGIO-IOCB"; 1165 const char *type; 1166 fc_port_t *fcport; 1167 srb_t *sp; 1168 struct srb_iocb *lio; 1169 struct srb_ctx *ctx; 1170 uint16_t *data; 1171 uint32_t iop[2]; 1172 1173 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1174 if (!sp) 1175 return; 1176 1177 ctx = sp->ctx; 1178 lio = ctx->u.iocb_cmd; 1179 type = ctx->name; 1180 fcport = sp->fcport; 1181 data = lio->u.logio.data; 1182 1183 data[0] = MBS_COMMAND_ERROR; 1184 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1185 QLA_LOGIO_LOGIN_RETRIED : 0; 1186 if (logio->entry_status) { 1187 DEBUG2(printk(KERN_WARNING 1188 "scsi(%ld:%x): Async-%s error entry - " 1189 "portid=%02x%02x%02x entry-status=%x.\n", 1190 fcport->vha->host_no, sp->handle, type, 1191 fcport->d_id.b.domain, fcport->d_id.b.area, 1192 fcport->d_id.b.al_pa, logio->entry_status)); 1193 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio))); 1194 1195 goto logio_done; 1196 } 1197 1198 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1199 DEBUG2(printk(KERN_DEBUG 1200 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " 1201 "iop0=%x.\n", 1202 fcport->vha->host_no, sp->handle, type, 1203 fcport->d_id.b.domain, fcport->d_id.b.area, 1204 fcport->d_id.b.al_pa, 1205 le32_to_cpu(logio->io_parameter[0]))); 1206 1207 data[0] = MBS_COMMAND_COMPLETE; 1208 if (ctx->type != SRB_LOGIN_CMD) 1209 goto logio_done; 1210 1211 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1212 if (iop[0] & BIT_4) { 1213 fcport->port_type = FCT_TARGET; 1214 if (iop[0] & BIT_8) 1215 fcport->flags |= FCF_FCP2_DEVICE; 1216 } else if (iop[0] & BIT_5) 1217 fcport->port_type = FCT_INITIATOR; 1218 1219 if (logio->io_parameter[7] || logio->io_parameter[8]) 1220 fcport->supported_classes |= FC_COS_CLASS2; 1221 if (logio->io_parameter[9] || logio->io_parameter[10]) 1222 fcport->supported_classes |= FC_COS_CLASS3; 1223 1224 goto logio_done; 1225 } 1226 1227 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1228 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1229 switch (iop[0]) { 1230 case LSC_SCODE_PORTID_USED: 1231 data[0] = MBS_PORT_ID_USED; 1232 data[1] = LSW(iop[1]); 1233 break; 1234 case LSC_SCODE_NPORT_USED: 1235 data[0] = MBS_LOOP_ID_USED; 1236 break; 1237 case LSC_SCODE_CMD_FAILED: 1238 if ((iop[1] & 0xff) == 0x05) { 1239 data[0] = MBS_NOT_LOGGED_IN; 1240 break; 1241 } 1242 /* Fall through. */ 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 1257logio_done: 1258 lio->done(sp); 1259} 1260 1261static void 1262qla24xx_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 */ 1325void 1326qla2x00_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 1405static inline void 1406 1407qla2x00_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 pid=%ld\n", __func__, sp->fcport->vha->host_no, 1429 cp->device->channel, cp->device->id, cp->device->lun, cp, 1430 cp->serial_number)); 1431 if (sense_len) 1432 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len)); 1433} 1434 1435struct scsi_dif_tuple { 1436 __be16 guard; /* Checksum */ 1437 __be16 app_tag; /* APPL identifer */ 1438 __be32 ref_tag; /* Target LBA or indirect LBA */ 1439}; 1440 1441/* 1442 * Checks the guard or meta-data for the type of error 1443 * detected by the HBA. In case of errors, we set the 1444 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1445 * to indicate to the kernel that the HBA detected error. 1446 */ 1447static inline void 1448qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1449{ 1450 struct scsi_cmnd *cmd = sp->cmd; 1451 struct scsi_dif_tuple *ep = 1452 (struct scsi_dif_tuple *)&sts24->data[20]; 1453 struct scsi_dif_tuple *ap = 1454 (struct scsi_dif_tuple *)&sts24->data[12]; 1455 uint32_t e_ref_tag, a_ref_tag; 1456 uint16_t e_app_tag, a_app_tag; 1457 uint16_t e_guard, a_guard; 1458 1459 e_ref_tag = be32_to_cpu(ep->ref_tag); 1460 a_ref_tag = be32_to_cpu(ap->ref_tag); 1461 e_app_tag = be16_to_cpu(ep->app_tag); 1462 a_app_tag = be16_to_cpu(ap->app_tag); 1463 e_guard = be16_to_cpu(ep->guard); 1464 a_guard = be16_to_cpu(ap->guard); 1465 1466 DEBUG18(printk(KERN_DEBUG 1467 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24)); 1468 1469 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1470 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1471 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n", 1472 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1473 a_app_tag, e_app_tag, a_guard, e_guard)); 1474 1475 1476 /* check guard */ 1477 if (e_guard != a_guard) { 1478 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1479 0x10, 0x1); 1480 set_driver_byte(cmd, DRIVER_SENSE); 1481 set_host_byte(cmd, DID_ABORT); 1482 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1483 return; 1484 } 1485 1486 /* check appl tag */ 1487 if (e_app_tag != a_app_tag) { 1488 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1489 0x10, 0x2); 1490 set_driver_byte(cmd, DRIVER_SENSE); 1491 set_host_byte(cmd, DID_ABORT); 1492 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1493 return; 1494 } 1495 1496 /* check ref tag */ 1497 if (e_ref_tag != a_ref_tag) { 1498 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1499 0x10, 0x3); 1500 set_driver_byte(cmd, DRIVER_SENSE); 1501 set_host_byte(cmd, DID_ABORT); 1502 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1503 return; 1504 } 1505} 1506 1507/** 1508 * qla2x00_status_entry() - Process a Status IOCB entry. 1509 * @ha: SCSI driver HA context 1510 * @pkt: Entry pointer 1511 */ 1512static void 1513qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 1514{ 1515 srb_t *sp; 1516 fc_port_t *fcport; 1517 struct scsi_cmnd *cp; 1518 sts_entry_t *sts; 1519 struct sts_entry_24xx *sts24; 1520 uint16_t comp_status; 1521 uint16_t scsi_status; 1522 uint16_t ox_id; 1523 uint8_t lscsi_status; 1524 int32_t resid; 1525 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 1526 fw_resid_len; 1527 uint8_t *rsp_info, *sense_data; 1528 struct qla_hw_data *ha = vha->hw; 1529 uint32_t handle; 1530 uint16_t que; 1531 struct req_que *req; 1532 int logit = 1; 1533 1534 sts = (sts_entry_t *) pkt; 1535 sts24 = (struct sts_entry_24xx *) pkt; 1536 if (IS_FWI2_CAPABLE(ha)) { 1537 comp_status = le16_to_cpu(sts24->comp_status); 1538 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1539 } else { 1540 comp_status = le16_to_cpu(sts->comp_status); 1541 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1542 } 1543 handle = (uint32_t) LSW(sts->handle); 1544 que = MSW(sts->handle); 1545 req = ha->req_q_map[que]; 1546 1547 /* Fast path completion. */ 1548 if (comp_status == CS_COMPLETE && scsi_status == 0) { 1549 qla2x00_process_completed_request(vha, req, handle); 1550 1551 return; 1552 } 1553 1554 /* Validate handle. */ 1555 if (handle < MAX_OUTSTANDING_COMMANDS) { 1556 sp = req->outstanding_cmds[handle]; 1557 req->outstanding_cmds[handle] = NULL; 1558 } else 1559 sp = NULL; 1560 1561 if (sp == NULL) { 1562 qla_printk(KERN_WARNING, ha, 1563 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no, 1564 sts->handle); 1565 1566 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1567 qla2xxx_wake_dpc(vha); 1568 return; 1569 } 1570 cp = sp->cmd; 1571 if (cp == NULL) { 1572 qla_printk(KERN_WARNING, ha, 1573 "scsi(%ld): Command already returned (0x%x/%p).\n", 1574 vha->host_no, sts->handle, sp); 1575 1576 return; 1577 } 1578 1579 lscsi_status = scsi_status & STATUS_MASK; 1580 1581 fcport = sp->fcport; 1582 1583 ox_id = 0; 1584 sense_len = par_sense_len = rsp_info_len = resid_len = 1585 fw_resid_len = 0; 1586 if (IS_FWI2_CAPABLE(ha)) { 1587 if (scsi_status & SS_SENSE_LEN_VALID) 1588 sense_len = le32_to_cpu(sts24->sense_len); 1589 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 1590 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 1591 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 1592 resid_len = le32_to_cpu(sts24->rsp_residual_count); 1593 if (comp_status == CS_DATA_UNDERRUN) 1594 fw_resid_len = le32_to_cpu(sts24->residual_len); 1595 rsp_info = sts24->data; 1596 sense_data = sts24->data; 1597 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 1598 ox_id = le16_to_cpu(sts24->ox_id); 1599 par_sense_len = sizeof(sts24->data); 1600 } else { 1601 if (scsi_status & SS_SENSE_LEN_VALID) 1602 sense_len = le16_to_cpu(sts->req_sense_length); 1603 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 1604 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 1605 resid_len = le32_to_cpu(sts->residual_length); 1606 rsp_info = sts->rsp_info; 1607 sense_data = sts->req_sense_data; 1608 par_sense_len = sizeof(sts->req_sense_data); 1609 } 1610 1611 /* Check for any FCP transport errors. */ 1612 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 1613 /* Sense data lies beyond any FCP RESPONSE data. */ 1614 if (IS_FWI2_CAPABLE(ha)) { 1615 sense_data += rsp_info_len; 1616 par_sense_len -= rsp_info_len; 1617 } 1618 if (rsp_info_len > 3 && rsp_info[3]) { 1619 DEBUG2(qla_printk(KERN_INFO, ha, 1620 "scsi(%ld:%d:%d): FCP I/O protocol failure " 1621 "(0x%x/0x%x).\n", vha->host_no, cp->device->id, 1622 cp->device->lun, rsp_info_len, rsp_info[3])); 1623 1624 cp->result = DID_BUS_BUSY << 16; 1625 goto out; 1626 } 1627 } 1628 1629 /* Check for overrun. */ 1630 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 1631 scsi_status & SS_RESIDUAL_OVER) 1632 comp_status = CS_DATA_OVERRUN; 1633 1634 /* 1635 * Based on Host and scsi status generate status code for Linux 1636 */ 1637 switch (comp_status) { 1638 case CS_COMPLETE: 1639 case CS_QUEUE_FULL: 1640 if (scsi_status == 0) { 1641 cp->result = DID_OK << 16; 1642 break; 1643 } 1644 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 1645 resid = resid_len; 1646 scsi_set_resid(cp, resid); 1647 1648 if (!lscsi_status && 1649 ((unsigned)(scsi_bufflen(cp) - resid) < 1650 cp->underflow)) { 1651 qla_printk(KERN_INFO, ha, 1652 "scsi(%ld:%d:%d): Mid-layer underflow " 1653 "detected (0x%x of 0x%x bytes).\n", 1654 vha->host_no, cp->device->id, 1655 cp->device->lun, resid, scsi_bufflen(cp)); 1656 1657 cp->result = DID_ERROR << 16; 1658 break; 1659 } 1660 } 1661 cp->result = DID_OK << 16 | lscsi_status; 1662 1663 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1664 DEBUG2(qla_printk(KERN_INFO, ha, 1665 "scsi(%ld:%d:%d) QUEUE FULL detected.\n", 1666 vha->host_no, cp->device->id, cp->device->lun)); 1667 break; 1668 } 1669 logit = 0; 1670 if (lscsi_status != SS_CHECK_CONDITION) 1671 break; 1672 1673 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1674 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1675 break; 1676 1677 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 1678 rsp); 1679 break; 1680 1681 case CS_DATA_UNDERRUN: 1682 /* Use F/W calculated residual length. */ 1683 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 1684 scsi_set_resid(cp, resid); 1685 if (scsi_status & SS_RESIDUAL_UNDER) { 1686 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 1687 DEBUG2(qla_printk(KERN_INFO, ha, 1688 "scsi(%ld:%d:%d) Dropped frame(s) detected " 1689 "(0x%x of 0x%x bytes).\n", vha->host_no, 1690 cp->device->id, cp->device->lun, resid, 1691 scsi_bufflen(cp))); 1692 1693 cp->result = DID_ERROR << 16 | lscsi_status; 1694 break; 1695 } 1696 1697 if (!lscsi_status && 1698 ((unsigned)(scsi_bufflen(cp) - resid) < 1699 cp->underflow)) { 1700 qla_printk(KERN_INFO, ha, 1701 "scsi(%ld:%d:%d): Mid-layer underflow " 1702 "detected (0x%x of 0x%x bytes).\n", 1703 vha->host_no, cp->device->id, 1704 cp->device->lun, resid, scsi_bufflen(cp)); 1705 1706 cp->result = DID_ERROR << 16; 1707 break; 1708 } 1709 } else { 1710 DEBUG2(qla_printk(KERN_INFO, ha, 1711 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x " 1712 "of 0x%x bytes).\n", vha->host_no, cp->device->id, 1713 cp->device->lun, resid, scsi_bufflen(cp))); 1714 1715 cp->result = DID_ERROR << 16 | lscsi_status; 1716 goto check_scsi_status; 1717 } 1718 1719 cp->result = DID_OK << 16 | lscsi_status; 1720 logit = 0; 1721 1722check_scsi_status: 1723 /* 1724 * Check to see if SCSI Status is non zero. If so report SCSI 1725 * Status. 1726 */ 1727 if (lscsi_status != 0) { 1728 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1729 DEBUG2(qla_printk(KERN_INFO, ha, 1730 "scsi(%ld:%d:%d) QUEUE FULL detected.\n", 1731 vha->host_no, cp->device->id, 1732 cp->device->lun)); 1733 logit = 1; 1734 break; 1735 } 1736 if (lscsi_status != SS_CHECK_CONDITION) 1737 break; 1738 1739 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1740 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1741 break; 1742 1743 qla2x00_handle_sense(sp, sense_data, par_sense_len, 1744 sense_len, rsp); 1745 } 1746 break; 1747 1748 case CS_PORT_LOGGED_OUT: 1749 case CS_PORT_CONFIG_CHG: 1750 case CS_PORT_BUSY: 1751 case CS_INCOMPLETE: 1752 case CS_PORT_UNAVAILABLE: 1753 case CS_TIMEOUT: 1754 /* 1755 * We are going to have the fc class block the rport 1756 * while we try to recover so instruct the mid layer 1757 * to requeue until the class decides how to handle this. 1758 */ 1759 cp->result = DID_TRANSPORT_DISRUPTED << 16; 1760 1761 if (comp_status == CS_TIMEOUT) { 1762 if (IS_FWI2_CAPABLE(ha)) 1763 break; 1764 else if ((le16_to_cpu(sts->status_flags) & 1765 SF_LOGOUT_SENT) == 0) 1766 break; 1767 } 1768 1769 DEBUG2(qla_printk(KERN_INFO, ha, 1770 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n", 1771 vha->host_no, cp->device->id, cp->device->lun, 1772 atomic_read(&fcport->state))); 1773 1774 if (atomic_read(&fcport->state) == FCS_ONLINE) 1775 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 1776 break; 1777 1778 case CS_RESET: 1779 cp->result = DID_TRANSPORT_DISRUPTED << 16; 1780 break; 1781 1782 case CS_ABORTED: 1783 cp->result = DID_RESET << 16; 1784 break; 1785 1786 case CS_DIF_ERROR: 1787 qla2x00_handle_dif_error(sp, sts24); 1788 break; 1789 default: 1790 cp->result = DID_ERROR << 16; 1791 break; 1792 } 1793 1794out: 1795 if (logit) 1796 DEBUG2(qla_printk(KERN_INFO, ha, 1797 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) " 1798 "oxid=0x%x ser=0x%lx cdb=%02x%02x%02x len=0x%x " 1799 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no, 1800 cp->device->id, cp->device->lun, comp_status, scsi_status, 1801 cp->result, ox_id, cp->serial_number, cp->cmnd[0], 1802 cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len, 1803 resid_len, fw_resid_len)); 1804 1805 if (rsp->status_srb == NULL) 1806 qla2x00_sp_compl(ha, sp); 1807} 1808 1809/** 1810 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 1811 * @ha: SCSI driver HA context 1812 * @pkt: Entry pointer 1813 * 1814 * Extended sense data. 1815 */ 1816static void 1817qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 1818{ 1819 uint8_t sense_sz = 0; 1820 struct qla_hw_data *ha = rsp->hw; 1821 srb_t *sp = rsp->status_srb; 1822 struct scsi_cmnd *cp; 1823 1824 if (sp != NULL && sp->request_sense_length != 0) { 1825 cp = sp->cmd; 1826 if (cp == NULL) { 1827 DEBUG2(printk("%s(): Cmd already returned back to OS " 1828 "sp=%p.\n", __func__, sp)); 1829 qla_printk(KERN_INFO, ha, 1830 "cmd is NULL: already returned to OS (sp=%p)\n", 1831 sp); 1832 1833 rsp->status_srb = NULL; 1834 return; 1835 } 1836 1837 if (sp->request_sense_length > sizeof(pkt->data)) { 1838 sense_sz = sizeof(pkt->data); 1839 } else { 1840 sense_sz = sp->request_sense_length; 1841 } 1842 1843 /* Move sense data. */ 1844 if (IS_FWI2_CAPABLE(ha)) 1845 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 1846 memcpy(sp->request_sense_ptr, pkt->data, sense_sz); 1847 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); 1848 1849 sp->request_sense_ptr += sense_sz; 1850 sp->request_sense_length -= sense_sz; 1851 1852 /* Place command on done queue. */ 1853 if (sp->request_sense_length == 0) { 1854 rsp->status_srb = NULL; 1855 qla2x00_sp_compl(ha, sp); 1856 } 1857 } 1858} 1859 1860/** 1861 * qla2x00_error_entry() - Process an error entry. 1862 * @ha: SCSI driver HA context 1863 * @pkt: Entry pointer 1864 */ 1865static void 1866qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 1867{ 1868 srb_t *sp; 1869 struct qla_hw_data *ha = vha->hw; 1870 uint32_t handle = LSW(pkt->handle); 1871 uint16_t que = MSW(pkt->handle); 1872 struct req_que *req = ha->req_q_map[que]; 1873#if defined(QL_DEBUG_LEVEL_2) 1874 if (pkt->entry_status & RF_INV_E_ORDER) 1875 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); 1876 else if (pkt->entry_status & RF_INV_E_COUNT) 1877 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); 1878 else if (pkt->entry_status & RF_INV_E_PARAM) 1879 qla_printk(KERN_ERR, ha, 1880 "%s: Invalid Entry Parameter\n", __func__); 1881 else if (pkt->entry_status & RF_INV_E_TYPE) 1882 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); 1883 else if (pkt->entry_status & RF_BUSY) 1884 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); 1885 else 1886 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); 1887#endif 1888 1889 /* Validate handle. */ 1890 if (handle < MAX_OUTSTANDING_COMMANDS) 1891 sp = req->outstanding_cmds[handle]; 1892 else 1893 sp = NULL; 1894 1895 if (sp) { 1896 /* Free outstanding command slot. */ 1897 req->outstanding_cmds[handle] = NULL; 1898 1899 /* Bad payload or header */ 1900 if (pkt->entry_status & 1901 (RF_INV_E_ORDER | RF_INV_E_COUNT | 1902 RF_INV_E_PARAM | RF_INV_E_TYPE)) { 1903 sp->cmd->result = DID_ERROR << 16; 1904 } else if (pkt->entry_status & RF_BUSY) { 1905 sp->cmd->result = DID_BUS_BUSY << 16; 1906 } else { 1907 sp->cmd->result = DID_ERROR << 16; 1908 } 1909 qla2x00_sp_compl(ha, sp); 1910 1911 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == 1912 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { 1913 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", 1914 vha->host_no)); 1915 qla_printk(KERN_WARNING, ha, 1916 "Error entry - invalid handle\n"); 1917 1918 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1919 qla2xxx_wake_dpc(vha); 1920 } 1921} 1922 1923/** 1924 * qla24xx_mbx_completion() - Process mailbox command completions. 1925 * @ha: SCSI driver HA context 1926 * @mb0: Mailbox0 register 1927 */ 1928static void 1929qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 1930{ 1931 uint16_t cnt; 1932 uint16_t __iomem *wptr; 1933 struct qla_hw_data *ha = vha->hw; 1934 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1935 1936 /* Load return mailbox registers. */ 1937 ha->flags.mbox_int = 1; 1938 ha->mailbox_out[0] = mb0; 1939 wptr = (uint16_t __iomem *)®->mailbox1; 1940 1941 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 1942 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 1943 wptr++; 1944 } 1945 1946 if (ha->mcp) { 1947 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 1948 __func__, vha->host_no, ha->mcp->mb[0])); 1949 } else { 1950 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 1951 __func__, vha->host_no)); 1952 } 1953} 1954 1955/** 1956 * qla24xx_process_response_queue() - Process response queue entries. 1957 * @ha: SCSI driver HA context 1958 */ 1959void qla24xx_process_response_queue(struct scsi_qla_host *vha, 1960 struct rsp_que *rsp) 1961{ 1962 struct sts_entry_24xx *pkt; 1963 struct qla_hw_data *ha = vha->hw; 1964 1965 if (!vha->flags.online) 1966 return; 1967 1968 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1969 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 1970 1971 rsp->ring_index++; 1972 if (rsp->ring_index == rsp->length) { 1973 rsp->ring_index = 0; 1974 rsp->ring_ptr = rsp->ring; 1975 } else { 1976 rsp->ring_ptr++; 1977 } 1978 1979 if (pkt->entry_status != 0) { 1980 DEBUG3(printk(KERN_INFO 1981 "scsi(%ld): Process error entry.\n", vha->host_no)); 1982 1983 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 1984 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1985 wmb(); 1986 continue; 1987 } 1988 1989 switch (pkt->entry_type) { 1990 case STATUS_TYPE: 1991 qla2x00_status_entry(vha, rsp, pkt); 1992 break; 1993 case STATUS_CONT_TYPE: 1994 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1995 break; 1996 case VP_RPT_ID_IOCB_TYPE: 1997 qla24xx_report_id_acquisition(vha, 1998 (struct vp_rpt_id_entry_24xx *)pkt); 1999 break; 2000 case LOGINOUT_PORT_IOCB_TYPE: 2001 qla24xx_logio_entry(vha, rsp->req, 2002 (struct logio_entry_24xx *)pkt); 2003 break; 2004 case TSK_MGMT_IOCB_TYPE: 2005 qla24xx_tm_iocb_entry(vha, rsp->req, 2006 (struct tsk_mgmt_entry *)pkt); 2007 break; 2008 case CT_IOCB_TYPE: 2009 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2010 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags); 2011 break; 2012 case ELS_IOCB_TYPE: 2013 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2014 break; 2015 default: 2016 /* Type Not Supported. */ 2017 DEBUG4(printk(KERN_WARNING 2018 "scsi(%ld): Received unknown response pkt type %x " 2019 "entry status=%x.\n", 2020 vha->host_no, pkt->entry_type, pkt->entry_status)); 2021 break; 2022 } 2023 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2024 wmb(); 2025 } 2026 2027 /* Adjust ring index */ 2028 if (IS_QLA82XX(ha)) { 2029 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2030 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2031 } else 2032 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2033} 2034 2035static void 2036qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2037{ 2038 int rval; 2039 uint32_t cnt; 2040 struct qla_hw_data *ha = vha->hw; 2041 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2042 2043 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)) 2044 return; 2045 2046 rval = QLA_SUCCESS; 2047 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2048 RD_REG_DWORD(®->iobase_addr); 2049 WRT_REG_DWORD(®->iobase_window, 0x0001); 2050 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2051 rval == QLA_SUCCESS; cnt--) { 2052 if (cnt) { 2053 WRT_REG_DWORD(®->iobase_window, 0x0001); 2054 udelay(10); 2055 } else 2056 rval = QLA_FUNCTION_TIMEOUT; 2057 } 2058 if (rval == QLA_SUCCESS) 2059 goto next_test; 2060 2061 WRT_REG_DWORD(®->iobase_window, 0x0003); 2062 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2063 rval == QLA_SUCCESS; cnt--) { 2064 if (cnt) { 2065 WRT_REG_DWORD(®->iobase_window, 0x0003); 2066 udelay(10); 2067 } else 2068 rval = QLA_FUNCTION_TIMEOUT; 2069 } 2070 if (rval != QLA_SUCCESS) 2071 goto done; 2072 2073next_test: 2074 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2075 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n"); 2076 2077done: 2078 WRT_REG_DWORD(®->iobase_window, 0x0000); 2079 RD_REG_DWORD(®->iobase_window); 2080} 2081 2082/** 2083 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 2084 * @irq: 2085 * @dev_id: SCSI driver HA context 2086 * 2087 * Called by system whenever the host adapter generates an interrupt. 2088 * 2089 * Returns handled flag. 2090 */ 2091irqreturn_t 2092qla24xx_intr_handler(int irq, void *dev_id) 2093{ 2094 scsi_qla_host_t *vha; 2095 struct qla_hw_data *ha; 2096 struct device_reg_24xx __iomem *reg; 2097 int status; 2098 unsigned long iter; 2099 uint32_t stat; 2100 uint32_t hccr; 2101 uint16_t mb[4]; 2102 struct rsp_que *rsp; 2103 unsigned long flags; 2104 2105 rsp = (struct rsp_que *) dev_id; 2106 if (!rsp) { 2107 printk(KERN_INFO 2108 "%s(): NULL response queue pointer\n", __func__); 2109 return IRQ_NONE; 2110 } 2111 2112 ha = rsp->hw; 2113 reg = &ha->iobase->isp24; 2114 status = 0; 2115 2116 if (unlikely(pci_channel_offline(ha->pdev))) 2117 return IRQ_HANDLED; 2118 2119 spin_lock_irqsave(&ha->hardware_lock, flags); 2120 vha = pci_get_drvdata(ha->pdev); 2121 for (iter = 50; iter--; ) { 2122 stat = RD_REG_DWORD(®->host_status); 2123 if (stat & HSRX_RISC_PAUSED) { 2124 if (unlikely(pci_channel_offline(ha->pdev))) 2125 break; 2126 2127 hccr = RD_REG_DWORD(®->hccr); 2128 2129 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 2130 "Dumping firmware!\n", hccr); 2131 2132 qla2xxx_check_risc_status(vha); 2133 2134 ha->isp_ops->fw_dump(vha, 1); 2135 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2136 break; 2137 } else if ((stat & HSRX_RISC_INT) == 0) 2138 break; 2139 2140 switch (stat & 0xff) { 2141 case 0x1: 2142 case 0x2: 2143 case 0x10: 2144 case 0x11: 2145 qla24xx_mbx_completion(vha, MSW(stat)); 2146 status |= MBX_INTERRUPT; 2147 2148 break; 2149 case 0x12: 2150 mb[0] = MSW(stat); 2151 mb[1] = RD_REG_WORD(®->mailbox1); 2152 mb[2] = RD_REG_WORD(®->mailbox2); 2153 mb[3] = RD_REG_WORD(®->mailbox3); 2154 qla2x00_async_event(vha, rsp, mb); 2155 break; 2156 case 0x13: 2157 case 0x14: 2158 qla24xx_process_response_queue(vha, rsp); 2159 break; 2160 default: 2161 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2162 "(%d).\n", 2163 vha->host_no, stat & 0xff)); 2164 break; 2165 } 2166 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2167 RD_REG_DWORD_RELAXED(®->hccr); 2168 } 2169 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2170 2171 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2172 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2173 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2174 complete(&ha->mbx_intr_comp); 2175 } 2176 2177 return IRQ_HANDLED; 2178} 2179 2180static irqreturn_t 2181qla24xx_msix_rsp_q(int irq, void *dev_id) 2182{ 2183 struct qla_hw_data *ha; 2184 struct rsp_que *rsp; 2185 struct device_reg_24xx __iomem *reg; 2186 struct scsi_qla_host *vha; 2187 unsigned long flags; 2188 2189 rsp = (struct rsp_que *) dev_id; 2190 if (!rsp) { 2191 printk(KERN_INFO 2192 "%s(): NULL response queue pointer\n", __func__); 2193 return IRQ_NONE; 2194 } 2195 ha = rsp->hw; 2196 reg = &ha->iobase->isp24; 2197 2198 spin_lock_irqsave(&ha->hardware_lock, flags); 2199 2200 vha = pci_get_drvdata(ha->pdev); 2201 qla24xx_process_response_queue(vha, rsp); 2202 if (!ha->flags.disable_msix_handshake) { 2203 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2204 RD_REG_DWORD_RELAXED(®->hccr); 2205 } 2206 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2207 2208 return IRQ_HANDLED; 2209} 2210 2211static irqreturn_t 2212qla25xx_msix_rsp_q(int irq, void *dev_id) 2213{ 2214 struct qla_hw_data *ha; 2215 struct rsp_que *rsp; 2216 struct device_reg_24xx __iomem *reg; 2217 unsigned long flags; 2218 2219 rsp = (struct rsp_que *) dev_id; 2220 if (!rsp) { 2221 printk(KERN_INFO 2222 "%s(): NULL response queue pointer\n", __func__); 2223 return IRQ_NONE; 2224 } 2225 ha = rsp->hw; 2226 2227 /* Clear the interrupt, if enabled, for this response queue */ 2228 if (rsp->options & ~BIT_6) { 2229 reg = &ha->iobase->isp24; 2230 spin_lock_irqsave(&ha->hardware_lock, flags); 2231 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2232 RD_REG_DWORD_RELAXED(®->hccr); 2233 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2234 } 2235 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2236 2237 return IRQ_HANDLED; 2238} 2239 2240static irqreturn_t 2241qla24xx_msix_default(int irq, void *dev_id) 2242{ 2243 scsi_qla_host_t *vha; 2244 struct qla_hw_data *ha; 2245 struct rsp_que *rsp; 2246 struct device_reg_24xx __iomem *reg; 2247 int status; 2248 uint32_t stat; 2249 uint32_t hccr; 2250 uint16_t mb[4]; 2251 unsigned long flags; 2252 2253 rsp = (struct rsp_que *) dev_id; 2254 if (!rsp) { 2255 DEBUG(printk( 2256 "%s(): NULL response queue pointer\n", __func__)); 2257 return IRQ_NONE; 2258 } 2259 ha = rsp->hw; 2260 reg = &ha->iobase->isp24; 2261 status = 0; 2262 2263 spin_lock_irqsave(&ha->hardware_lock, flags); 2264 vha = pci_get_drvdata(ha->pdev); 2265 do { 2266 stat = RD_REG_DWORD(®->host_status); 2267 if (stat & HSRX_RISC_PAUSED) { 2268 if (unlikely(pci_channel_offline(ha->pdev))) 2269 break; 2270 2271 hccr = RD_REG_DWORD(®->hccr); 2272 2273 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 2274 "Dumping firmware!\n", hccr); 2275 2276 qla2xxx_check_risc_status(vha); 2277 2278 ha->isp_ops->fw_dump(vha, 1); 2279 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2280 break; 2281 } else if ((stat & HSRX_RISC_INT) == 0) 2282 break; 2283 2284 switch (stat & 0xff) { 2285 case 0x1: 2286 case 0x2: 2287 case 0x10: 2288 case 0x11: 2289 qla24xx_mbx_completion(vha, MSW(stat)); 2290 status |= MBX_INTERRUPT; 2291 2292 break; 2293 case 0x12: 2294 mb[0] = MSW(stat); 2295 mb[1] = RD_REG_WORD(®->mailbox1); 2296 mb[2] = RD_REG_WORD(®->mailbox2); 2297 mb[3] = RD_REG_WORD(®->mailbox3); 2298 qla2x00_async_event(vha, rsp, mb); 2299 break; 2300 case 0x13: 2301 case 0x14: 2302 qla24xx_process_response_queue(vha, rsp); 2303 break; 2304 default: 2305 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2306 "(%d).\n", 2307 vha->host_no, stat & 0xff)); 2308 break; 2309 } 2310 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2311 } while (0); 2312 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2313 2314 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2315 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2316 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2317 complete(&ha->mbx_intr_comp); 2318 } 2319 return IRQ_HANDLED; 2320} 2321 2322/* Interrupt handling helpers. */ 2323 2324struct qla_init_msix_entry { 2325 const char *name; 2326 irq_handler_t handler; 2327}; 2328 2329static struct qla_init_msix_entry msix_entries[3] = { 2330 { "qla2xxx (default)", qla24xx_msix_default }, 2331 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 2332 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 2333}; 2334 2335static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 2336 { "qla2xxx (default)", qla82xx_msix_default }, 2337 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 2338}; 2339 2340static void 2341qla24xx_disable_msix(struct qla_hw_data *ha) 2342{ 2343 int i; 2344 struct qla_msix_entry *qentry; 2345 2346 for (i = 0; i < ha->msix_count; i++) { 2347 qentry = &ha->msix_entries[i]; 2348 if (qentry->have_irq) 2349 free_irq(qentry->vector, qentry->rsp); 2350 } 2351 pci_disable_msix(ha->pdev); 2352 kfree(ha->msix_entries); 2353 ha->msix_entries = NULL; 2354 ha->flags.msix_enabled = 0; 2355} 2356 2357static int 2358qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 2359{ 2360#define MIN_MSIX_COUNT 2 2361 int i, ret; 2362 struct msix_entry *entries; 2363 struct qla_msix_entry *qentry; 2364 2365 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 2366 GFP_KERNEL); 2367 if (!entries) 2368 return -ENOMEM; 2369 2370 for (i = 0; i < ha->msix_count; i++) 2371 entries[i].entry = i; 2372 2373 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); 2374 if (ret) { 2375 if (ret < MIN_MSIX_COUNT) 2376 goto msix_failed; 2377 2378 qla_printk(KERN_WARNING, ha, 2379 "MSI-X: Failed to enable support -- %d/%d\n" 2380 " Retry with %d vectors\n", ha->msix_count, ret, ret); 2381 ha->msix_count = ret; 2382 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); 2383 if (ret) { 2384msix_failed: 2385 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable" 2386 " support, giving up -- %d/%d\n", 2387 ha->msix_count, ret); 2388 goto msix_out; 2389 } 2390 ha->max_rsp_queues = ha->msix_count - 1; 2391 } 2392 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 2393 ha->msix_count, GFP_KERNEL); 2394 if (!ha->msix_entries) { 2395 ret = -ENOMEM; 2396 goto msix_out; 2397 } 2398 ha->flags.msix_enabled = 1; 2399 2400 for (i = 0; i < ha->msix_count; i++) { 2401 qentry = &ha->msix_entries[i]; 2402 qentry->vector = entries[i].vector; 2403 qentry->entry = entries[i].entry; 2404 qentry->have_irq = 0; 2405 qentry->rsp = NULL; 2406 } 2407 2408 /* Enable MSI-X vectors for the base queue */ 2409 for (i = 0; i < 2; i++) { 2410 qentry = &ha->msix_entries[i]; 2411 if (IS_QLA82XX(ha)) { 2412 ret = request_irq(qentry->vector, 2413 qla82xx_msix_entries[i].handler, 2414 0, qla82xx_msix_entries[i].name, rsp); 2415 } else { 2416 ret = request_irq(qentry->vector, 2417 msix_entries[i].handler, 2418 0, msix_entries[i].name, rsp); 2419 } 2420 if (ret) { 2421 qla_printk(KERN_WARNING, ha, 2422 "MSI-X: Unable to register handler -- %x/%d.\n", 2423 qentry->vector, ret); 2424 qla24xx_disable_msix(ha); 2425 ha->mqenable = 0; 2426 goto msix_out; 2427 } 2428 qentry->have_irq = 1; 2429 qentry->rsp = rsp; 2430 rsp->msix = qentry; 2431 } 2432 2433 /* Enable MSI-X vector for response queue update for queue 0 */ 2434 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 2435 ha->mqenable = 1; 2436 2437msix_out: 2438 kfree(entries); 2439 return ret; 2440} 2441 2442int 2443qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 2444{ 2445 int ret; 2446 device_reg_t __iomem *reg = ha->iobase; 2447 2448 /* If possible, enable MSI-X. */ 2449 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && 2450 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha)) 2451 goto skip_msi; 2452 2453 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 2454 (ha->pdev->subsystem_device == 0x7040 || 2455 ha->pdev->subsystem_device == 0x7041 || 2456 ha->pdev->subsystem_device == 0x1705)) { 2457 DEBUG2(qla_printk(KERN_WARNING, ha, 2458 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n", 2459 ha->pdev->subsystem_vendor, 2460 ha->pdev->subsystem_device)); 2461 goto skip_msi; 2462 } 2463 2464 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX || 2465 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { 2466 DEBUG2(qla_printk(KERN_WARNING, ha, 2467 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", 2468 ha->pdev->revision, ha->fw_attributes)); 2469 goto skip_msix; 2470 } 2471 2472 ret = qla24xx_enable_msix(ha, rsp); 2473 if (!ret) { 2474 DEBUG2(qla_printk(KERN_INFO, ha, 2475 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, 2476 ha->fw_attributes)); 2477 goto clear_risc_ints; 2478 } 2479 qla_printk(KERN_WARNING, ha, 2480 "MSI-X: Falling back-to MSI mode -- %d.\n", ret); 2481skip_msix: 2482 2483 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 2484 !IS_QLA8001(ha)) 2485 goto skip_msi; 2486 2487 ret = pci_enable_msi(ha->pdev); 2488 if (!ret) { 2489 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); 2490 ha->flags.msi_enabled = 1; 2491 } else 2492 qla_printk(KERN_WARNING, ha, 2493 "MSI-X: Falling back-to INTa mode -- %d.\n", ret); 2494skip_msi: 2495 2496 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 2497 IRQF_SHARED, 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 ha->flags.inta_enabled = 1; 2505clear_risc_ints: 2506 2507 if (IS_QLA81XX(ha) || IS_QLA82XX(ha)) 2508 goto fail; 2509 spin_lock_irq(&ha->hardware_lock); 2510 if (IS_FWI2_CAPABLE(ha)) { 2511 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); 2512 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); 2513 } else { 2514 WRT_REG_WORD(®->isp.semaphore, 0); 2515 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); 2516 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); 2517 } 2518 spin_unlock_irq(&ha->hardware_lock); 2519 2520fail: 2521 return ret; 2522} 2523 2524void 2525qla2x00_free_irqs(scsi_qla_host_t *vha) 2526{ 2527 struct qla_hw_data *ha = vha->hw; 2528 struct rsp_que *rsp = ha->rsp_q_map[0]; 2529 2530 if (ha->flags.msix_enabled) 2531 qla24xx_disable_msix(ha); 2532 else if (ha->flags.msi_enabled) { 2533 free_irq(ha->pdev->irq, rsp); 2534 pci_disable_msi(ha->pdev); 2535 } else 2536 free_irq(ha->pdev->irq, rsp); 2537} 2538 2539 2540int qla25xx_request_irq(struct rsp_que *rsp) 2541{ 2542 struct qla_hw_data *ha = rsp->hw; 2543 struct qla_init_msix_entry *intr = &msix_entries[2]; 2544 struct qla_msix_entry *msix = rsp->msix; 2545 int ret; 2546 2547 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 2548 if (ret) { 2549 qla_printk(KERN_WARNING, ha, 2550 "MSI-X: Unable to register handler -- %x/%d.\n", 2551 msix->vector, ret); 2552 return ret; 2553 } 2554 msix->have_irq = 1; 2555 msix->rsp = rsp; 2556 return ret; 2557} 2558