1 /* 2 * Linux MegaRAID driver for SAS based RAID controllers 3 * 4 * Copyright (c) 2003-2013 LSI Corporation 5 * Copyright (c) 2013-2014 Avago Technologies 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. 19 * 20 * Authors: Avago Technologies 21 * Sreenivas Bagalkote 22 * Sumant Patro 23 * Bo Yang 24 * Adam Radford 25 * Kashyap Desai <kashyap.desai@avagotech.com> 26 * Sumit Saxena <sumit.saxena@avagotech.com> 27 * 28 * Send feedback to: megaraidlinux.pdl@avagotech.com 29 * 30 * Mail to: Avago Technologies, 350 West Trimble Road, Building 90, 31 * San Jose, California 95131 32 */ 33 34 #include <linux/kernel.h> 35 #include <linux/types.h> 36 #include <linux/pci.h> 37 #include <linux/list.h> 38 #include <linux/moduleparam.h> 39 #include <linux/module.h> 40 #include <linux/spinlock.h> 41 #include <linux/interrupt.h> 42 #include <linux/delay.h> 43 #include <linux/uio.h> 44 #include <linux/slab.h> 45 #include <linux/uaccess.h> 46 #include <asm/unaligned.h> 47 #include <linux/fs.h> 48 #include <linux/compat.h> 49 #include <linux/blkdev.h> 50 #include <linux/mutex.h> 51 #include <linux/poll.h> 52 53 #include <scsi/scsi.h> 54 #include <scsi/scsi_cmnd.h> 55 #include <scsi/scsi_device.h> 56 #include <scsi/scsi_host.h> 57 #include <scsi/scsi_tcq.h> 58 #include "megaraid_sas_fusion.h" 59 #include "megaraid_sas.h" 60 61 /* 62 * Number of sectors per IO command 63 * Will be set in megasas_init_mfi if user does not provide 64 */ 65 static unsigned int max_sectors; 66 module_param_named(max_sectors, max_sectors, int, 0); 67 MODULE_PARM_DESC(max_sectors, 68 "Maximum number of sectors per IO command"); 69 70 static int msix_disable; 71 module_param(msix_disable, int, S_IRUGO); 72 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); 73 74 static unsigned int msix_vectors; 75 module_param(msix_vectors, int, S_IRUGO); 76 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); 77 78 static int allow_vf_ioctls; 79 module_param(allow_vf_ioctls, int, S_IRUGO); 80 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); 81 82 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; 83 module_param(throttlequeuedepth, int, S_IRUGO); 84 MODULE_PARM_DESC(throttlequeuedepth, 85 "Adapter queue depth when throttled due to I/O timeout. Default: 16"); 86 87 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; 88 module_param(resetwaittime, int, S_IRUGO); 89 MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout " 90 "before resetting adapter. Default: 180"); 91 92 int smp_affinity_enable = 1; 93 module_param(smp_affinity_enable, int, S_IRUGO); 94 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)"); 95 96 int rdpq_enable = 1; 97 module_param(rdpq_enable, int, S_IRUGO); 98 MODULE_PARM_DESC(rdpq_enable, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)"); 99 100 unsigned int dual_qdepth_disable; 101 module_param(dual_qdepth_disable, int, S_IRUGO); 102 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); 103 104 unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 105 module_param(scmd_timeout, int, S_IRUGO); 106 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); 107 108 MODULE_LICENSE("GPL"); 109 MODULE_VERSION(MEGASAS_VERSION); 110 MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com"); 111 MODULE_DESCRIPTION("Avago MegaRAID SAS Driver"); 112 113 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); 114 static int megasas_get_pd_list(struct megasas_instance *instance); 115 static int megasas_ld_list_query(struct megasas_instance *instance, 116 u8 query_type); 117 static int megasas_issue_init_mfi(struct megasas_instance *instance); 118 static int megasas_register_aen(struct megasas_instance *instance, 119 u32 seq_num, u32 class_locale_word); 120 static void megasas_get_pd_info(struct megasas_instance *instance, 121 struct scsi_device *sdev); 122 static int megasas_get_target_prop(struct megasas_instance *instance, 123 struct scsi_device *sdev); 124 /* 125 * PCI ID table for all supported controllers 126 */ 127 static struct pci_device_id megasas_pci_table[] = { 128 129 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, 130 /* xscale IOP */ 131 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, 132 /* ppc IOP */ 133 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, 134 /* ppc IOP */ 135 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, 136 /* gen2*/ 137 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, 138 /* gen2*/ 139 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, 140 /* skinny*/ 141 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, 142 /* skinny*/ 143 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, 144 /* xscale IOP, vega */ 145 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, 146 /* xscale IOP */ 147 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, 148 /* Fusion */ 149 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, 150 /* Plasma */ 151 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, 152 /* Invader */ 153 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, 154 /* Fury */ 155 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, 156 /* Intruder */ 157 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, 158 /* Intruder 24 port*/ 159 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, 160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, 161 /* VENTURA */ 162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)}, 163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)}, 164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)}, 165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)}, 166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)}, 167 {} 168 }; 169 170 MODULE_DEVICE_TABLE(pci, megasas_pci_table); 171 172 static int megasas_mgmt_majorno; 173 struct megasas_mgmt_info megasas_mgmt_info; 174 static struct fasync_struct *megasas_async_queue; 175 static DEFINE_MUTEX(megasas_async_queue_mutex); 176 177 static int megasas_poll_wait_aen; 178 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); 179 static u32 support_poll_for_event; 180 u32 megasas_dbg_lvl; 181 static u32 support_device_change; 182 183 /* define lock for aen poll */ 184 spinlock_t poll_aen_lock; 185 186 void 187 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 188 u8 alt_status); 189 static u32 190 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs); 191 static int 192 megasas_adp_reset_gen2(struct megasas_instance *instance, 193 struct megasas_register_set __iomem *reg_set); 194 static irqreturn_t megasas_isr(int irq, void *devp); 195 static u32 196 megasas_init_adapter_mfi(struct megasas_instance *instance); 197 u32 198 megasas_build_and_issue_cmd(struct megasas_instance *instance, 199 struct scsi_cmnd *scmd); 200 static void megasas_complete_cmd_dpc(unsigned long instance_addr); 201 int 202 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, 203 int seconds); 204 void megasas_fusion_ocr_wq(struct work_struct *work); 205 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 206 int initial); 207 208 void 209 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 210 { 211 instance->instancet->fire_cmd(instance, 212 cmd->frame_phys_addr, 0, instance->reg_set); 213 return; 214 } 215 216 /** 217 * megasas_get_cmd - Get a command from the free pool 218 * @instance: Adapter soft state 219 * 220 * Returns a free command from the pool 221 */ 222 struct megasas_cmd *megasas_get_cmd(struct megasas_instance 223 *instance) 224 { 225 unsigned long flags; 226 struct megasas_cmd *cmd = NULL; 227 228 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 229 230 if (!list_empty(&instance->cmd_pool)) { 231 cmd = list_entry((&instance->cmd_pool)->next, 232 struct megasas_cmd, list); 233 list_del_init(&cmd->list); 234 } else { 235 dev_err(&instance->pdev->dev, "Command pool empty!\n"); 236 } 237 238 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 239 return cmd; 240 } 241 242 /** 243 * megasas_return_cmd - Return a cmd to free command pool 244 * @instance: Adapter soft state 245 * @cmd: Command packet to be returned to free command pool 246 */ 247 inline void 248 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 249 { 250 unsigned long flags; 251 u32 blk_tags; 252 struct megasas_cmd_fusion *cmd_fusion; 253 struct fusion_context *fusion = instance->ctrl_context; 254 255 /* This flag is used only for fusion adapter. 256 * Wait for Interrupt for Polled mode DCMD 257 */ 258 if (cmd->flags & DRV_DCMD_POLLED_MODE) 259 return; 260 261 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 262 263 if (fusion) { 264 blk_tags = instance->max_scsi_cmds + cmd->index; 265 cmd_fusion = fusion->cmd_list[blk_tags]; 266 megasas_return_cmd_fusion(instance, cmd_fusion); 267 } 268 cmd->scmd = NULL; 269 cmd->frame_count = 0; 270 cmd->flags = 0; 271 memset(cmd->frame, 0, instance->mfi_frame_size); 272 cmd->frame->io.context = cpu_to_le32(cmd->index); 273 if (!fusion && reset_devices) 274 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 275 list_add(&cmd->list, (&instance->cmd_pool)->next); 276 277 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 278 279 } 280 281 static const char * 282 format_timestamp(uint32_t timestamp) 283 { 284 static char buffer[32]; 285 286 if ((timestamp & 0xff000000) == 0xff000000) 287 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 288 0x00ffffff); 289 else 290 snprintf(buffer, sizeof(buffer), "%us", timestamp); 291 return buffer; 292 } 293 294 static const char * 295 format_class(int8_t class) 296 { 297 static char buffer[6]; 298 299 switch (class) { 300 case MFI_EVT_CLASS_DEBUG: 301 return "debug"; 302 case MFI_EVT_CLASS_PROGRESS: 303 return "progress"; 304 case MFI_EVT_CLASS_INFO: 305 return "info"; 306 case MFI_EVT_CLASS_WARNING: 307 return "WARN"; 308 case MFI_EVT_CLASS_CRITICAL: 309 return "CRIT"; 310 case MFI_EVT_CLASS_FATAL: 311 return "FATAL"; 312 case MFI_EVT_CLASS_DEAD: 313 return "DEAD"; 314 default: 315 snprintf(buffer, sizeof(buffer), "%d", class); 316 return buffer; 317 } 318 } 319 320 /** 321 * megasas_decode_evt: Decode FW AEN event and print critical event 322 * for information. 323 * @instance: Adapter soft state 324 */ 325 static void 326 megasas_decode_evt(struct megasas_instance *instance) 327 { 328 struct megasas_evt_detail *evt_detail = instance->evt_detail; 329 union megasas_evt_class_locale class_locale; 330 class_locale.word = le32_to_cpu(evt_detail->cl.word); 331 332 if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL) 333 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", 334 le32_to_cpu(evt_detail->seq_num), 335 format_timestamp(le32_to_cpu(evt_detail->time_stamp)), 336 (class_locale.members.locale), 337 format_class(class_locale.members.class), 338 evt_detail->description); 339 } 340 341 /** 342 * The following functions are defined for xscale 343 * (deviceid : 1064R, PERC5) controllers 344 */ 345 346 /** 347 * megasas_enable_intr_xscale - Enables interrupts 348 * @regs: MFI register set 349 */ 350 static inline void 351 megasas_enable_intr_xscale(struct megasas_instance *instance) 352 { 353 struct megasas_register_set __iomem *regs; 354 355 regs = instance->reg_set; 356 writel(0, &(regs)->outbound_intr_mask); 357 358 /* Dummy readl to force pci flush */ 359 readl(®s->outbound_intr_mask); 360 } 361 362 /** 363 * megasas_disable_intr_xscale -Disables interrupt 364 * @regs: MFI register set 365 */ 366 static inline void 367 megasas_disable_intr_xscale(struct megasas_instance *instance) 368 { 369 struct megasas_register_set __iomem *regs; 370 u32 mask = 0x1f; 371 372 regs = instance->reg_set; 373 writel(mask, ®s->outbound_intr_mask); 374 /* Dummy readl to force pci flush */ 375 readl(®s->outbound_intr_mask); 376 } 377 378 /** 379 * megasas_read_fw_status_reg_xscale - returns the current FW status value 380 * @regs: MFI register set 381 */ 382 static u32 383 megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs) 384 { 385 return readl(&(regs)->outbound_msg_0); 386 } 387 /** 388 * megasas_clear_interrupt_xscale - Check & clear interrupt 389 * @regs: MFI register set 390 */ 391 static int 392 megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) 393 { 394 u32 status; 395 u32 mfiStatus = 0; 396 397 /* 398 * Check if it is our interrupt 399 */ 400 status = readl(®s->outbound_intr_status); 401 402 if (status & MFI_OB_INTR_STATUS_MASK) 403 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 404 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) 405 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 406 407 /* 408 * Clear the interrupt by writing back the same value 409 */ 410 if (mfiStatus) 411 writel(status, ®s->outbound_intr_status); 412 413 /* Dummy readl to force pci flush */ 414 readl(®s->outbound_intr_status); 415 416 return mfiStatus; 417 } 418 419 /** 420 * megasas_fire_cmd_xscale - Sends command to the FW 421 * @frame_phys_addr : Physical address of cmd 422 * @frame_count : Number of frames for the command 423 * @regs : MFI register set 424 */ 425 static inline void 426 megasas_fire_cmd_xscale(struct megasas_instance *instance, 427 dma_addr_t frame_phys_addr, 428 u32 frame_count, 429 struct megasas_register_set __iomem *regs) 430 { 431 unsigned long flags; 432 433 spin_lock_irqsave(&instance->hba_lock, flags); 434 writel((frame_phys_addr >> 3)|(frame_count), 435 &(regs)->inbound_queue_port); 436 spin_unlock_irqrestore(&instance->hba_lock, flags); 437 } 438 439 /** 440 * megasas_adp_reset_xscale - For controller reset 441 * @regs: MFI register set 442 */ 443 static int 444 megasas_adp_reset_xscale(struct megasas_instance *instance, 445 struct megasas_register_set __iomem *regs) 446 { 447 u32 i; 448 u32 pcidata; 449 450 writel(MFI_ADP_RESET, ®s->inbound_doorbell); 451 452 for (i = 0; i < 3; i++) 453 msleep(1000); /* sleep for 3 secs */ 454 pcidata = 0; 455 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); 456 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); 457 if (pcidata & 0x2) { 458 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); 459 pcidata &= ~0x2; 460 pci_write_config_dword(instance->pdev, 461 MFI_1068_PCSR_OFFSET, pcidata); 462 463 for (i = 0; i < 2; i++) 464 msleep(1000); /* need to wait 2 secs again */ 465 466 pcidata = 0; 467 pci_read_config_dword(instance->pdev, 468 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); 469 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); 470 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { 471 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); 472 pcidata = 0; 473 pci_write_config_dword(instance->pdev, 474 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); 475 } 476 } 477 return 0; 478 } 479 480 /** 481 * megasas_check_reset_xscale - For controller reset check 482 * @regs: MFI register set 483 */ 484 static int 485 megasas_check_reset_xscale(struct megasas_instance *instance, 486 struct megasas_register_set __iomem *regs) 487 { 488 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && 489 (le32_to_cpu(*instance->consumer) == 490 MEGASAS_ADPRESET_INPROG_SIGN)) 491 return 1; 492 return 0; 493 } 494 495 static struct megasas_instance_template megasas_instance_template_xscale = { 496 497 .fire_cmd = megasas_fire_cmd_xscale, 498 .enable_intr = megasas_enable_intr_xscale, 499 .disable_intr = megasas_disable_intr_xscale, 500 .clear_intr = megasas_clear_intr_xscale, 501 .read_fw_status_reg = megasas_read_fw_status_reg_xscale, 502 .adp_reset = megasas_adp_reset_xscale, 503 .check_reset = megasas_check_reset_xscale, 504 .service_isr = megasas_isr, 505 .tasklet = megasas_complete_cmd_dpc, 506 .init_adapter = megasas_init_adapter_mfi, 507 .build_and_issue_cmd = megasas_build_and_issue_cmd, 508 .issue_dcmd = megasas_issue_dcmd, 509 }; 510 511 /** 512 * This is the end of set of functions & definitions specific 513 * to xscale (deviceid : 1064R, PERC5) controllers 514 */ 515 516 /** 517 * The following functions are defined for ppc (deviceid : 0x60) 518 * controllers 519 */ 520 521 /** 522 * megasas_enable_intr_ppc - Enables interrupts 523 * @regs: MFI register set 524 */ 525 static inline void 526 megasas_enable_intr_ppc(struct megasas_instance *instance) 527 { 528 struct megasas_register_set __iomem *regs; 529 530 regs = instance->reg_set; 531 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 532 533 writel(~0x80000000, &(regs)->outbound_intr_mask); 534 535 /* Dummy readl to force pci flush */ 536 readl(®s->outbound_intr_mask); 537 } 538 539 /** 540 * megasas_disable_intr_ppc - Disable interrupt 541 * @regs: MFI register set 542 */ 543 static inline void 544 megasas_disable_intr_ppc(struct megasas_instance *instance) 545 { 546 struct megasas_register_set __iomem *regs; 547 u32 mask = 0xFFFFFFFF; 548 549 regs = instance->reg_set; 550 writel(mask, ®s->outbound_intr_mask); 551 /* Dummy readl to force pci flush */ 552 readl(®s->outbound_intr_mask); 553 } 554 555 /** 556 * megasas_read_fw_status_reg_ppc - returns the current FW status value 557 * @regs: MFI register set 558 */ 559 static u32 560 megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs) 561 { 562 return readl(&(regs)->outbound_scratch_pad); 563 } 564 565 /** 566 * megasas_clear_interrupt_ppc - Check & clear interrupt 567 * @regs: MFI register set 568 */ 569 static int 570 megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs) 571 { 572 u32 status, mfiStatus = 0; 573 574 /* 575 * Check if it is our interrupt 576 */ 577 status = readl(®s->outbound_intr_status); 578 579 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) 580 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 581 582 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) 583 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 584 585 /* 586 * Clear the interrupt by writing back the same value 587 */ 588 writel(status, ®s->outbound_doorbell_clear); 589 590 /* Dummy readl to force pci flush */ 591 readl(®s->outbound_doorbell_clear); 592 593 return mfiStatus; 594 } 595 596 /** 597 * megasas_fire_cmd_ppc - Sends command to the FW 598 * @frame_phys_addr : Physical address of cmd 599 * @frame_count : Number of frames for the command 600 * @regs : MFI register set 601 */ 602 static inline void 603 megasas_fire_cmd_ppc(struct megasas_instance *instance, 604 dma_addr_t frame_phys_addr, 605 u32 frame_count, 606 struct megasas_register_set __iomem *regs) 607 { 608 unsigned long flags; 609 610 spin_lock_irqsave(&instance->hba_lock, flags); 611 writel((frame_phys_addr | (frame_count<<1))|1, 612 &(regs)->inbound_queue_port); 613 spin_unlock_irqrestore(&instance->hba_lock, flags); 614 } 615 616 /** 617 * megasas_check_reset_ppc - For controller reset check 618 * @regs: MFI register set 619 */ 620 static int 621 megasas_check_reset_ppc(struct megasas_instance *instance, 622 struct megasas_register_set __iomem *regs) 623 { 624 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 625 return 1; 626 627 return 0; 628 } 629 630 static struct megasas_instance_template megasas_instance_template_ppc = { 631 632 .fire_cmd = megasas_fire_cmd_ppc, 633 .enable_intr = megasas_enable_intr_ppc, 634 .disable_intr = megasas_disable_intr_ppc, 635 .clear_intr = megasas_clear_intr_ppc, 636 .read_fw_status_reg = megasas_read_fw_status_reg_ppc, 637 .adp_reset = megasas_adp_reset_xscale, 638 .check_reset = megasas_check_reset_ppc, 639 .service_isr = megasas_isr, 640 .tasklet = megasas_complete_cmd_dpc, 641 .init_adapter = megasas_init_adapter_mfi, 642 .build_and_issue_cmd = megasas_build_and_issue_cmd, 643 .issue_dcmd = megasas_issue_dcmd, 644 }; 645 646 /** 647 * megasas_enable_intr_skinny - Enables interrupts 648 * @regs: MFI register set 649 */ 650 static inline void 651 megasas_enable_intr_skinny(struct megasas_instance *instance) 652 { 653 struct megasas_register_set __iomem *regs; 654 655 regs = instance->reg_set; 656 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); 657 658 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 659 660 /* Dummy readl to force pci flush */ 661 readl(®s->outbound_intr_mask); 662 } 663 664 /** 665 * megasas_disable_intr_skinny - Disables interrupt 666 * @regs: MFI register set 667 */ 668 static inline void 669 megasas_disable_intr_skinny(struct megasas_instance *instance) 670 { 671 struct megasas_register_set __iomem *regs; 672 u32 mask = 0xFFFFFFFF; 673 674 regs = instance->reg_set; 675 writel(mask, ®s->outbound_intr_mask); 676 /* Dummy readl to force pci flush */ 677 readl(®s->outbound_intr_mask); 678 } 679 680 /** 681 * megasas_read_fw_status_reg_skinny - returns the current FW status value 682 * @regs: MFI register set 683 */ 684 static u32 685 megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs) 686 { 687 return readl(&(regs)->outbound_scratch_pad); 688 } 689 690 /** 691 * megasas_clear_interrupt_skinny - Check & clear interrupt 692 * @regs: MFI register set 693 */ 694 static int 695 megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) 696 { 697 u32 status; 698 u32 mfiStatus = 0; 699 700 /* 701 * Check if it is our interrupt 702 */ 703 status = readl(®s->outbound_intr_status); 704 705 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { 706 return 0; 707 } 708 709 /* 710 * Check if it is our interrupt 711 */ 712 if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) == 713 MFI_STATE_FAULT) { 714 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 715 } else 716 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 717 718 /* 719 * Clear the interrupt by writing back the same value 720 */ 721 writel(status, ®s->outbound_intr_status); 722 723 /* 724 * dummy read to flush PCI 725 */ 726 readl(®s->outbound_intr_status); 727 728 return mfiStatus; 729 } 730 731 /** 732 * megasas_fire_cmd_skinny - Sends command to the FW 733 * @frame_phys_addr : Physical address of cmd 734 * @frame_count : Number of frames for the command 735 * @regs : MFI register set 736 */ 737 static inline void 738 megasas_fire_cmd_skinny(struct megasas_instance *instance, 739 dma_addr_t frame_phys_addr, 740 u32 frame_count, 741 struct megasas_register_set __iomem *regs) 742 { 743 unsigned long flags; 744 745 spin_lock_irqsave(&instance->hba_lock, flags); 746 writel(upper_32_bits(frame_phys_addr), 747 &(regs)->inbound_high_queue_port); 748 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, 749 &(regs)->inbound_low_queue_port); 750 mmiowb(); 751 spin_unlock_irqrestore(&instance->hba_lock, flags); 752 } 753 754 /** 755 * megasas_check_reset_skinny - For controller reset check 756 * @regs: MFI register set 757 */ 758 static int 759 megasas_check_reset_skinny(struct megasas_instance *instance, 760 struct megasas_register_set __iomem *regs) 761 { 762 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 763 return 1; 764 765 return 0; 766 } 767 768 static struct megasas_instance_template megasas_instance_template_skinny = { 769 770 .fire_cmd = megasas_fire_cmd_skinny, 771 .enable_intr = megasas_enable_intr_skinny, 772 .disable_intr = megasas_disable_intr_skinny, 773 .clear_intr = megasas_clear_intr_skinny, 774 .read_fw_status_reg = megasas_read_fw_status_reg_skinny, 775 .adp_reset = megasas_adp_reset_gen2, 776 .check_reset = megasas_check_reset_skinny, 777 .service_isr = megasas_isr, 778 .tasklet = megasas_complete_cmd_dpc, 779 .init_adapter = megasas_init_adapter_mfi, 780 .build_and_issue_cmd = megasas_build_and_issue_cmd, 781 .issue_dcmd = megasas_issue_dcmd, 782 }; 783 784 785 /** 786 * The following functions are defined for gen2 (deviceid : 0x78 0x79) 787 * controllers 788 */ 789 790 /** 791 * megasas_enable_intr_gen2 - Enables interrupts 792 * @regs: MFI register set 793 */ 794 static inline void 795 megasas_enable_intr_gen2(struct megasas_instance *instance) 796 { 797 struct megasas_register_set __iomem *regs; 798 799 regs = instance->reg_set; 800 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 801 802 /* write ~0x00000005 (4 & 1) to the intr mask*/ 803 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 804 805 /* Dummy readl to force pci flush */ 806 readl(®s->outbound_intr_mask); 807 } 808 809 /** 810 * megasas_disable_intr_gen2 - Disables interrupt 811 * @regs: MFI register set 812 */ 813 static inline void 814 megasas_disable_intr_gen2(struct megasas_instance *instance) 815 { 816 struct megasas_register_set __iomem *regs; 817 u32 mask = 0xFFFFFFFF; 818 819 regs = instance->reg_set; 820 writel(mask, ®s->outbound_intr_mask); 821 /* Dummy readl to force pci flush */ 822 readl(®s->outbound_intr_mask); 823 } 824 825 /** 826 * megasas_read_fw_status_reg_gen2 - returns the current FW status value 827 * @regs: MFI register set 828 */ 829 static u32 830 megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs) 831 { 832 return readl(&(regs)->outbound_scratch_pad); 833 } 834 835 /** 836 * megasas_clear_interrupt_gen2 - Check & clear interrupt 837 * @regs: MFI register set 838 */ 839 static int 840 megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs) 841 { 842 u32 status; 843 u32 mfiStatus = 0; 844 845 /* 846 * Check if it is our interrupt 847 */ 848 status = readl(®s->outbound_intr_status); 849 850 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { 851 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 852 } 853 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { 854 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 855 } 856 857 /* 858 * Clear the interrupt by writing back the same value 859 */ 860 if (mfiStatus) 861 writel(status, ®s->outbound_doorbell_clear); 862 863 /* Dummy readl to force pci flush */ 864 readl(®s->outbound_intr_status); 865 866 return mfiStatus; 867 } 868 /** 869 * megasas_fire_cmd_gen2 - Sends command to the FW 870 * @frame_phys_addr : Physical address of cmd 871 * @frame_count : Number of frames for the command 872 * @regs : MFI register set 873 */ 874 static inline void 875 megasas_fire_cmd_gen2(struct megasas_instance *instance, 876 dma_addr_t frame_phys_addr, 877 u32 frame_count, 878 struct megasas_register_set __iomem *regs) 879 { 880 unsigned long flags; 881 882 spin_lock_irqsave(&instance->hba_lock, flags); 883 writel((frame_phys_addr | (frame_count<<1))|1, 884 &(regs)->inbound_queue_port); 885 spin_unlock_irqrestore(&instance->hba_lock, flags); 886 } 887 888 /** 889 * megasas_adp_reset_gen2 - For controller reset 890 * @regs: MFI register set 891 */ 892 static int 893 megasas_adp_reset_gen2(struct megasas_instance *instance, 894 struct megasas_register_set __iomem *reg_set) 895 { 896 u32 retry = 0 ; 897 u32 HostDiag; 898 u32 __iomem *seq_offset = ®_set->seq_offset; 899 u32 __iomem *hostdiag_offset = ®_set->host_diag; 900 901 if (instance->instancet == &megasas_instance_template_skinny) { 902 seq_offset = ®_set->fusion_seq_offset; 903 hostdiag_offset = ®_set->fusion_host_diag; 904 } 905 906 writel(0, seq_offset); 907 writel(4, seq_offset); 908 writel(0xb, seq_offset); 909 writel(2, seq_offset); 910 writel(7, seq_offset); 911 writel(0xd, seq_offset); 912 913 msleep(1000); 914 915 HostDiag = (u32)readl(hostdiag_offset); 916 917 while (!(HostDiag & DIAG_WRITE_ENABLE)) { 918 msleep(100); 919 HostDiag = (u32)readl(hostdiag_offset); 920 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", 921 retry, HostDiag); 922 923 if (retry++ >= 100) 924 return 1; 925 926 } 927 928 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); 929 930 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); 931 932 ssleep(10); 933 934 HostDiag = (u32)readl(hostdiag_offset); 935 while (HostDiag & DIAG_RESET_ADAPTER) { 936 msleep(100); 937 HostDiag = (u32)readl(hostdiag_offset); 938 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", 939 retry, HostDiag); 940 941 if (retry++ >= 1000) 942 return 1; 943 944 } 945 return 0; 946 } 947 948 /** 949 * megasas_check_reset_gen2 - For controller reset check 950 * @regs: MFI register set 951 */ 952 static int 953 megasas_check_reset_gen2(struct megasas_instance *instance, 954 struct megasas_register_set __iomem *regs) 955 { 956 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 957 return 1; 958 959 return 0; 960 } 961 962 static struct megasas_instance_template megasas_instance_template_gen2 = { 963 964 .fire_cmd = megasas_fire_cmd_gen2, 965 .enable_intr = megasas_enable_intr_gen2, 966 .disable_intr = megasas_disable_intr_gen2, 967 .clear_intr = megasas_clear_intr_gen2, 968 .read_fw_status_reg = megasas_read_fw_status_reg_gen2, 969 .adp_reset = megasas_adp_reset_gen2, 970 .check_reset = megasas_check_reset_gen2, 971 .service_isr = megasas_isr, 972 .tasklet = megasas_complete_cmd_dpc, 973 .init_adapter = megasas_init_adapter_mfi, 974 .build_and_issue_cmd = megasas_build_and_issue_cmd, 975 .issue_dcmd = megasas_issue_dcmd, 976 }; 977 978 /** 979 * This is the end of set of functions & definitions 980 * specific to gen2 (deviceid : 0x78, 0x79) controllers 981 */ 982 983 /* 984 * Template added for TB (Fusion) 985 */ 986 extern struct megasas_instance_template megasas_instance_template_fusion; 987 988 /** 989 * megasas_issue_polled - Issues a polling command 990 * @instance: Adapter soft state 991 * @cmd: Command packet to be issued 992 * 993 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. 994 */ 995 int 996 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) 997 { 998 struct megasas_header *frame_hdr = &cmd->frame->hdr; 999 1000 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; 1001 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); 1002 1003 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1004 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1005 __func__, __LINE__); 1006 return DCMD_NOT_FIRED; 1007 } 1008 1009 instance->instancet->issue_dcmd(instance, cmd); 1010 1011 return wait_and_poll(instance, cmd, instance->requestorId ? 1012 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); 1013 } 1014 1015 /** 1016 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds 1017 * @instance: Adapter soft state 1018 * @cmd: Command to be issued 1019 * @timeout: Timeout in seconds 1020 * 1021 * This function waits on an event for the command to be returned from ISR. 1022 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1023 * Used to issue ioctl commands. 1024 */ 1025 int 1026 megasas_issue_blocked_cmd(struct megasas_instance *instance, 1027 struct megasas_cmd *cmd, int timeout) 1028 { 1029 int ret = 0; 1030 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 1031 1032 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1033 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1034 __func__, __LINE__); 1035 return DCMD_NOT_FIRED; 1036 } 1037 1038 instance->instancet->issue_dcmd(instance, cmd); 1039 1040 if (timeout) { 1041 ret = wait_event_timeout(instance->int_cmd_wait_q, 1042 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); 1043 if (!ret) { 1044 dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n", 1045 __func__, __LINE__); 1046 return DCMD_TIMEOUT; 1047 } 1048 } else 1049 wait_event(instance->int_cmd_wait_q, 1050 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); 1051 1052 return (cmd->cmd_status_drv == MFI_STAT_OK) ? 1053 DCMD_SUCCESS : DCMD_FAILED; 1054 } 1055 1056 /** 1057 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd 1058 * @instance: Adapter soft state 1059 * @cmd_to_abort: Previously issued cmd to be aborted 1060 * @timeout: Timeout in seconds 1061 * 1062 * MFI firmware can abort previously issued AEN comamnd (automatic event 1063 * notification). The megasas_issue_blocked_abort_cmd() issues such abort 1064 * cmd and waits for return status. 1065 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1066 */ 1067 static int 1068 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, 1069 struct megasas_cmd *cmd_to_abort, int timeout) 1070 { 1071 struct megasas_cmd *cmd; 1072 struct megasas_abort_frame *abort_fr; 1073 int ret = 0; 1074 1075 cmd = megasas_get_cmd(instance); 1076 1077 if (!cmd) 1078 return -1; 1079 1080 abort_fr = &cmd->frame->abort; 1081 1082 /* 1083 * Prepare and issue the abort frame 1084 */ 1085 abort_fr->cmd = MFI_CMD_ABORT; 1086 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; 1087 abort_fr->flags = cpu_to_le16(0); 1088 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); 1089 abort_fr->abort_mfi_phys_addr_lo = 1090 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); 1091 abort_fr->abort_mfi_phys_addr_hi = 1092 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); 1093 1094 cmd->sync_cmd = 1; 1095 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 1096 1097 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1098 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1099 __func__, __LINE__); 1100 return DCMD_NOT_FIRED; 1101 } 1102 1103 instance->instancet->issue_dcmd(instance, cmd); 1104 1105 if (timeout) { 1106 ret = wait_event_timeout(instance->abort_cmd_wait_q, 1107 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); 1108 if (!ret) { 1109 dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n", 1110 __func__, __LINE__); 1111 return DCMD_TIMEOUT; 1112 } 1113 } else 1114 wait_event(instance->abort_cmd_wait_q, 1115 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); 1116 1117 cmd->sync_cmd = 0; 1118 1119 megasas_return_cmd(instance, cmd); 1120 return (cmd->cmd_status_drv == MFI_STAT_OK) ? 1121 DCMD_SUCCESS : DCMD_FAILED; 1122 } 1123 1124 /** 1125 * megasas_make_sgl32 - Prepares 32-bit SGL 1126 * @instance: Adapter soft state 1127 * @scp: SCSI command from the mid-layer 1128 * @mfi_sgl: SGL to be filled in 1129 * 1130 * If successful, this function returns the number of SG elements. Otherwise, 1131 * it returnes -1. 1132 */ 1133 static int 1134 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, 1135 union megasas_sgl *mfi_sgl) 1136 { 1137 int i; 1138 int sge_count; 1139 struct scatterlist *os_sgl; 1140 1141 sge_count = scsi_dma_map(scp); 1142 BUG_ON(sge_count < 0); 1143 1144 if (sge_count) { 1145 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1146 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1147 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); 1148 } 1149 } 1150 return sge_count; 1151 } 1152 1153 /** 1154 * megasas_make_sgl64 - Prepares 64-bit SGL 1155 * @instance: Adapter soft state 1156 * @scp: SCSI command from the mid-layer 1157 * @mfi_sgl: SGL to be filled in 1158 * 1159 * If successful, this function returns the number of SG elements. Otherwise, 1160 * it returnes -1. 1161 */ 1162 static int 1163 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, 1164 union megasas_sgl *mfi_sgl) 1165 { 1166 int i; 1167 int sge_count; 1168 struct scatterlist *os_sgl; 1169 1170 sge_count = scsi_dma_map(scp); 1171 BUG_ON(sge_count < 0); 1172 1173 if (sge_count) { 1174 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1175 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1176 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); 1177 } 1178 } 1179 return sge_count; 1180 } 1181 1182 /** 1183 * megasas_make_sgl_skinny - Prepares IEEE SGL 1184 * @instance: Adapter soft state 1185 * @scp: SCSI command from the mid-layer 1186 * @mfi_sgl: SGL to be filled in 1187 * 1188 * If successful, this function returns the number of SG elements. Otherwise, 1189 * it returnes -1. 1190 */ 1191 static int 1192 megasas_make_sgl_skinny(struct megasas_instance *instance, 1193 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) 1194 { 1195 int i; 1196 int sge_count; 1197 struct scatterlist *os_sgl; 1198 1199 sge_count = scsi_dma_map(scp); 1200 1201 if (sge_count) { 1202 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1203 mfi_sgl->sge_skinny[i].length = 1204 cpu_to_le32(sg_dma_len(os_sgl)); 1205 mfi_sgl->sge_skinny[i].phys_addr = 1206 cpu_to_le64(sg_dma_address(os_sgl)); 1207 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); 1208 } 1209 } 1210 return sge_count; 1211 } 1212 1213 /** 1214 * megasas_get_frame_count - Computes the number of frames 1215 * @frame_type : type of frame- io or pthru frame 1216 * @sge_count : number of sg elements 1217 * 1218 * Returns the number of frames required for numnber of sge's (sge_count) 1219 */ 1220 1221 static u32 megasas_get_frame_count(struct megasas_instance *instance, 1222 u8 sge_count, u8 frame_type) 1223 { 1224 int num_cnt; 1225 int sge_bytes; 1226 u32 sge_sz; 1227 u32 frame_count = 0; 1228 1229 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 1230 sizeof(struct megasas_sge32); 1231 1232 if (instance->flag_ieee) { 1233 sge_sz = sizeof(struct megasas_sge_skinny); 1234 } 1235 1236 /* 1237 * Main frame can contain 2 SGEs for 64-bit SGLs and 1238 * 3 SGEs for 32-bit SGLs for ldio & 1239 * 1 SGEs for 64-bit SGLs and 1240 * 2 SGEs for 32-bit SGLs for pthru frame 1241 */ 1242 if (unlikely(frame_type == PTHRU_FRAME)) { 1243 if (instance->flag_ieee == 1) { 1244 num_cnt = sge_count - 1; 1245 } else if (IS_DMA64) 1246 num_cnt = sge_count - 1; 1247 else 1248 num_cnt = sge_count - 2; 1249 } else { 1250 if (instance->flag_ieee == 1) { 1251 num_cnt = sge_count - 1; 1252 } else if (IS_DMA64) 1253 num_cnt = sge_count - 2; 1254 else 1255 num_cnt = sge_count - 3; 1256 } 1257 1258 if (num_cnt > 0) { 1259 sge_bytes = sge_sz * num_cnt; 1260 1261 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + 1262 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; 1263 } 1264 /* Main frame */ 1265 frame_count += 1; 1266 1267 if (frame_count > 7) 1268 frame_count = 8; 1269 return frame_count; 1270 } 1271 1272 /** 1273 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command 1274 * @instance: Adapter soft state 1275 * @scp: SCSI command 1276 * @cmd: Command to be prepared in 1277 * 1278 * This function prepares CDB commands. These are typcially pass-through 1279 * commands to the devices. 1280 */ 1281 static int 1282 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, 1283 struct megasas_cmd *cmd) 1284 { 1285 u32 is_logical; 1286 u32 device_id; 1287 u16 flags = 0; 1288 struct megasas_pthru_frame *pthru; 1289 1290 is_logical = MEGASAS_IS_LOGICAL(scp->device); 1291 device_id = MEGASAS_DEV_INDEX(scp); 1292 pthru = (struct megasas_pthru_frame *)cmd->frame; 1293 1294 if (scp->sc_data_direction == PCI_DMA_TODEVICE) 1295 flags = MFI_FRAME_DIR_WRITE; 1296 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) 1297 flags = MFI_FRAME_DIR_READ; 1298 else if (scp->sc_data_direction == PCI_DMA_NONE) 1299 flags = MFI_FRAME_DIR_NONE; 1300 1301 if (instance->flag_ieee == 1) { 1302 flags |= MFI_FRAME_IEEE; 1303 } 1304 1305 /* 1306 * Prepare the DCDB frame 1307 */ 1308 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; 1309 pthru->cmd_status = 0x0; 1310 pthru->scsi_status = 0x0; 1311 pthru->target_id = device_id; 1312 pthru->lun = scp->device->lun; 1313 pthru->cdb_len = scp->cmd_len; 1314 pthru->timeout = 0; 1315 pthru->pad_0 = 0; 1316 pthru->flags = cpu_to_le16(flags); 1317 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); 1318 1319 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); 1320 1321 /* 1322 * If the command is for the tape device, set the 1323 * pthru timeout to the os layer timeout value. 1324 */ 1325 if (scp->device->type == TYPE_TAPE) { 1326 if ((scp->request->timeout / HZ) > 0xFFFF) 1327 pthru->timeout = cpu_to_le16(0xFFFF); 1328 else 1329 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); 1330 } 1331 1332 /* 1333 * Construct SGL 1334 */ 1335 if (instance->flag_ieee == 1) { 1336 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1337 pthru->sge_count = megasas_make_sgl_skinny(instance, scp, 1338 &pthru->sgl); 1339 } else if (IS_DMA64) { 1340 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1341 pthru->sge_count = megasas_make_sgl64(instance, scp, 1342 &pthru->sgl); 1343 } else 1344 pthru->sge_count = megasas_make_sgl32(instance, scp, 1345 &pthru->sgl); 1346 1347 if (pthru->sge_count > instance->max_num_sge) { 1348 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", 1349 pthru->sge_count); 1350 return 0; 1351 } 1352 1353 /* 1354 * Sense info specific 1355 */ 1356 pthru->sense_len = SCSI_SENSE_BUFFERSIZE; 1357 pthru->sense_buf_phys_addr_hi = 1358 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); 1359 pthru->sense_buf_phys_addr_lo = 1360 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); 1361 1362 /* 1363 * Compute the total number of frames this command consumes. FW uses 1364 * this number to pull sufficient number of frames from host memory. 1365 */ 1366 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, 1367 PTHRU_FRAME); 1368 1369 return cmd->frame_count; 1370 } 1371 1372 /** 1373 * megasas_build_ldio - Prepares IOs to logical devices 1374 * @instance: Adapter soft state 1375 * @scp: SCSI command 1376 * @cmd: Command to be prepared 1377 * 1378 * Frames (and accompanying SGLs) for regular SCSI IOs use this function. 1379 */ 1380 static int 1381 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, 1382 struct megasas_cmd *cmd) 1383 { 1384 u32 device_id; 1385 u8 sc = scp->cmnd[0]; 1386 u16 flags = 0; 1387 struct megasas_io_frame *ldio; 1388 1389 device_id = MEGASAS_DEV_INDEX(scp); 1390 ldio = (struct megasas_io_frame *)cmd->frame; 1391 1392 if (scp->sc_data_direction == PCI_DMA_TODEVICE) 1393 flags = MFI_FRAME_DIR_WRITE; 1394 else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) 1395 flags = MFI_FRAME_DIR_READ; 1396 1397 if (instance->flag_ieee == 1) { 1398 flags |= MFI_FRAME_IEEE; 1399 } 1400 1401 /* 1402 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds 1403 */ 1404 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; 1405 ldio->cmd_status = 0x0; 1406 ldio->scsi_status = 0x0; 1407 ldio->target_id = device_id; 1408 ldio->timeout = 0; 1409 ldio->reserved_0 = 0; 1410 ldio->pad_0 = 0; 1411 ldio->flags = cpu_to_le16(flags); 1412 ldio->start_lba_hi = 0; 1413 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; 1414 1415 /* 1416 * 6-byte READ(0x08) or WRITE(0x0A) cdb 1417 */ 1418 if (scp->cmd_len == 6) { 1419 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); 1420 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | 1421 ((u32) scp->cmnd[2] << 8) | 1422 (u32) scp->cmnd[3]); 1423 1424 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); 1425 } 1426 1427 /* 1428 * 10-byte READ(0x28) or WRITE(0x2A) cdb 1429 */ 1430 else if (scp->cmd_len == 10) { 1431 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | 1432 ((u32) scp->cmnd[7] << 8)); 1433 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1434 ((u32) scp->cmnd[3] << 16) | 1435 ((u32) scp->cmnd[4] << 8) | 1436 (u32) scp->cmnd[5]); 1437 } 1438 1439 /* 1440 * 12-byte READ(0xA8) or WRITE(0xAA) cdb 1441 */ 1442 else if (scp->cmd_len == 12) { 1443 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1444 ((u32) scp->cmnd[7] << 16) | 1445 ((u32) scp->cmnd[8] << 8) | 1446 (u32) scp->cmnd[9]); 1447 1448 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1449 ((u32) scp->cmnd[3] << 16) | 1450 ((u32) scp->cmnd[4] << 8) | 1451 (u32) scp->cmnd[5]); 1452 } 1453 1454 /* 1455 * 16-byte READ(0x88) or WRITE(0x8A) cdb 1456 */ 1457 else if (scp->cmd_len == 16) { 1458 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | 1459 ((u32) scp->cmnd[11] << 16) | 1460 ((u32) scp->cmnd[12] << 8) | 1461 (u32) scp->cmnd[13]); 1462 1463 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1464 ((u32) scp->cmnd[7] << 16) | 1465 ((u32) scp->cmnd[8] << 8) | 1466 (u32) scp->cmnd[9]); 1467 1468 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1469 ((u32) scp->cmnd[3] << 16) | 1470 ((u32) scp->cmnd[4] << 8) | 1471 (u32) scp->cmnd[5]); 1472 1473 } 1474 1475 /* 1476 * Construct SGL 1477 */ 1478 if (instance->flag_ieee) { 1479 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1480 ldio->sge_count = megasas_make_sgl_skinny(instance, scp, 1481 &ldio->sgl); 1482 } else if (IS_DMA64) { 1483 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1484 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); 1485 } else 1486 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); 1487 1488 if (ldio->sge_count > instance->max_num_sge) { 1489 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", 1490 ldio->sge_count); 1491 return 0; 1492 } 1493 1494 /* 1495 * Sense info specific 1496 */ 1497 ldio->sense_len = SCSI_SENSE_BUFFERSIZE; 1498 ldio->sense_buf_phys_addr_hi = 0; 1499 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); 1500 1501 /* 1502 * Compute the total number of frames this command consumes. FW uses 1503 * this number to pull sufficient number of frames from host memory. 1504 */ 1505 cmd->frame_count = megasas_get_frame_count(instance, 1506 ldio->sge_count, IO_FRAME); 1507 1508 return cmd->frame_count; 1509 } 1510 1511 /** 1512 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD 1513 * and whether it's RW or non RW 1514 * @scmd: SCSI command 1515 * 1516 */ 1517 inline int megasas_cmd_type(struct scsi_cmnd *cmd) 1518 { 1519 int ret; 1520 1521 switch (cmd->cmnd[0]) { 1522 case READ_10: 1523 case WRITE_10: 1524 case READ_12: 1525 case WRITE_12: 1526 case READ_6: 1527 case WRITE_6: 1528 case READ_16: 1529 case WRITE_16: 1530 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1531 READ_WRITE_LDIO : READ_WRITE_SYSPDIO; 1532 break; 1533 default: 1534 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1535 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; 1536 } 1537 return ret; 1538 } 1539 1540 /** 1541 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds 1542 * in FW 1543 * @instance: Adapter soft state 1544 */ 1545 static inline void 1546 megasas_dump_pending_frames(struct megasas_instance *instance) 1547 { 1548 struct megasas_cmd *cmd; 1549 int i,n; 1550 union megasas_sgl *mfi_sgl; 1551 struct megasas_io_frame *ldio; 1552 struct megasas_pthru_frame *pthru; 1553 u32 sgcount; 1554 u16 max_cmd = instance->max_fw_cmds; 1555 1556 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); 1557 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); 1558 if (IS_DMA64) 1559 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); 1560 else 1561 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); 1562 1563 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); 1564 for (i = 0; i < max_cmd; i++) { 1565 cmd = instance->cmd_list[i]; 1566 if (!cmd->scmd) 1567 continue; 1568 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); 1569 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { 1570 ldio = (struct megasas_io_frame *)cmd->frame; 1571 mfi_sgl = &ldio->sgl; 1572 sgcount = ldio->sge_count; 1573 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," 1574 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1575 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, 1576 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), 1577 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); 1578 } else { 1579 pthru = (struct megasas_pthru_frame *) cmd->frame; 1580 mfi_sgl = &pthru->sgl; 1581 sgcount = pthru->sge_count; 1582 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " 1583 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1584 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, 1585 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), 1586 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); 1587 } 1588 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { 1589 for (n = 0; n < sgcount; n++) { 1590 if (IS_DMA64) 1591 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", 1592 le32_to_cpu(mfi_sgl->sge64[n].length), 1593 le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); 1594 else 1595 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", 1596 le32_to_cpu(mfi_sgl->sge32[n].length), 1597 le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); 1598 } 1599 } 1600 } /*for max_cmd*/ 1601 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); 1602 for (i = 0; i < max_cmd; i++) { 1603 1604 cmd = instance->cmd_list[i]; 1605 1606 if (cmd->sync_cmd == 1) 1607 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); 1608 } 1609 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); 1610 } 1611 1612 u32 1613 megasas_build_and_issue_cmd(struct megasas_instance *instance, 1614 struct scsi_cmnd *scmd) 1615 { 1616 struct megasas_cmd *cmd; 1617 u32 frame_count; 1618 1619 cmd = megasas_get_cmd(instance); 1620 if (!cmd) 1621 return SCSI_MLQUEUE_HOST_BUSY; 1622 1623 /* 1624 * Logical drive command 1625 */ 1626 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) 1627 frame_count = megasas_build_ldio(instance, scmd, cmd); 1628 else 1629 frame_count = megasas_build_dcdb(instance, scmd, cmd); 1630 1631 if (!frame_count) 1632 goto out_return_cmd; 1633 1634 cmd->scmd = scmd; 1635 scmd->SCp.ptr = (char *)cmd; 1636 1637 /* 1638 * Issue the command to the FW 1639 */ 1640 atomic_inc(&instance->fw_outstanding); 1641 1642 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, 1643 cmd->frame_count-1, instance->reg_set); 1644 1645 return 0; 1646 out_return_cmd: 1647 megasas_return_cmd(instance, cmd); 1648 return SCSI_MLQUEUE_HOST_BUSY; 1649 } 1650 1651 1652 /** 1653 * megasas_queue_command - Queue entry point 1654 * @scmd: SCSI command to be queued 1655 * @done: Callback entry point 1656 */ 1657 static int 1658 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 1659 { 1660 struct megasas_instance *instance; 1661 struct MR_PRIV_DEVICE *mr_device_priv_data; 1662 1663 instance = (struct megasas_instance *) 1664 scmd->device->host->hostdata; 1665 1666 if (instance->unload == 1) { 1667 scmd->result = DID_NO_CONNECT << 16; 1668 scmd->scsi_done(scmd); 1669 return 0; 1670 } 1671 1672 if (instance->issuepend_done == 0) 1673 return SCSI_MLQUEUE_HOST_BUSY; 1674 1675 1676 /* Check for an mpio path and adjust behavior */ 1677 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 1678 if (megasas_check_mpio_paths(instance, scmd) == 1679 (DID_REQUEUE << 16)) { 1680 return SCSI_MLQUEUE_HOST_BUSY; 1681 } else { 1682 scmd->result = DID_NO_CONNECT << 16; 1683 scmd->scsi_done(scmd); 1684 return 0; 1685 } 1686 } 1687 1688 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1689 scmd->result = DID_NO_CONNECT << 16; 1690 scmd->scsi_done(scmd); 1691 return 0; 1692 } 1693 1694 mr_device_priv_data = scmd->device->hostdata; 1695 if (!mr_device_priv_data) { 1696 scmd->result = DID_NO_CONNECT << 16; 1697 scmd->scsi_done(scmd); 1698 return 0; 1699 } 1700 1701 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1702 return SCSI_MLQUEUE_HOST_BUSY; 1703 1704 if (mr_device_priv_data->tm_busy) 1705 return SCSI_MLQUEUE_DEVICE_BUSY; 1706 1707 1708 scmd->result = 0; 1709 1710 if (MEGASAS_IS_LOGICAL(scmd->device) && 1711 (scmd->device->id >= instance->fw_supported_vd_count || 1712 scmd->device->lun)) { 1713 scmd->result = DID_BAD_TARGET << 16; 1714 goto out_done; 1715 } 1716 1717 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && 1718 MEGASAS_IS_LOGICAL(scmd->device) && 1719 (!instance->fw_sync_cache_support)) { 1720 scmd->result = DID_OK << 16; 1721 goto out_done; 1722 } 1723 1724 return instance->instancet->build_and_issue_cmd(instance, scmd); 1725 1726 out_done: 1727 scmd->scsi_done(scmd); 1728 return 0; 1729 } 1730 1731 static struct megasas_instance *megasas_lookup_instance(u16 host_no) 1732 { 1733 int i; 1734 1735 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 1736 1737 if ((megasas_mgmt_info.instance[i]) && 1738 (megasas_mgmt_info.instance[i]->host->host_no == host_no)) 1739 return megasas_mgmt_info.instance[i]; 1740 } 1741 1742 return NULL; 1743 } 1744 1745 /* 1746 * megasas_set_dynamic_target_properties - 1747 * Device property set by driver may not be static and it is required to be 1748 * updated after OCR 1749 * 1750 * set tm_capable. 1751 * set dma alignment (only for eedp protection enable vd). 1752 * 1753 * @sdev: OS provided scsi device 1754 * 1755 * Returns void 1756 */ 1757 void megasas_set_dynamic_target_properties(struct scsi_device *sdev) 1758 { 1759 u16 pd_index = 0, ld; 1760 u32 device_id; 1761 struct megasas_instance *instance; 1762 struct fusion_context *fusion; 1763 struct MR_PRIV_DEVICE *mr_device_priv_data; 1764 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1765 struct MR_LD_RAID *raid; 1766 struct MR_DRV_RAID_MAP_ALL *local_map_ptr; 1767 1768 instance = megasas_lookup_instance(sdev->host->host_no); 1769 fusion = instance->ctrl_context; 1770 mr_device_priv_data = sdev->hostdata; 1771 1772 if (!fusion || !mr_device_priv_data) 1773 return; 1774 1775 if (MEGASAS_IS_LOGICAL(sdev)) { 1776 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) 1777 + sdev->id; 1778 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; 1779 ld = MR_TargetIdToLdGet(device_id, local_map_ptr); 1780 if (ld >= instance->fw_supported_vd_count) 1781 return; 1782 raid = MR_LdRaidGet(ld, local_map_ptr); 1783 1784 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) 1785 blk_queue_update_dma_alignment(sdev->request_queue, 0x7); 1786 1787 mr_device_priv_data->is_tm_capable = 1788 raid->capability.tmCapable; 1789 } else if (instance->use_seqnum_jbod_fp) { 1790 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1791 sdev->id; 1792 pd_sync = (void *)fusion->pd_seq_sync 1793 [(instance->pd_seq_map_id - 1) & 1]; 1794 mr_device_priv_data->is_tm_capable = 1795 pd_sync->seq[pd_index].capability.tmCapable; 1796 } 1797 } 1798 1799 /* 1800 * megasas_set_nvme_device_properties - 1801 * set nomerges=2 1802 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). 1803 * set maximum io transfer = MDTS of NVME device provided by MR firmware. 1804 * 1805 * MR firmware provides value in KB. Caller of this function converts 1806 * kb into bytes. 1807 * 1808 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, 1809 * MR firmware provides value 128 as (32 * 4K) = 128K. 1810 * 1811 * @sdev: scsi device 1812 * @max_io_size: maximum io transfer size 1813 * 1814 */ 1815 static inline void 1816 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) 1817 { 1818 struct megasas_instance *instance; 1819 u32 mr_nvme_pg_size; 1820 1821 instance = (struct megasas_instance *)sdev->host->hostdata; 1822 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, 1823 MR_DEFAULT_NVME_PAGE_SIZE); 1824 1825 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512)); 1826 1827 queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, sdev->request_queue); 1828 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); 1829 } 1830 1831 1832 /* 1833 * megasas_set_static_target_properties - 1834 * Device property set by driver are static and it is not required to be 1835 * updated after OCR. 1836 * 1837 * set io timeout 1838 * set device queue depth 1839 * set nvme device properties. see - megasas_set_nvme_device_properties 1840 * 1841 * @sdev: scsi device 1842 * @is_target_prop true, if fw provided target properties. 1843 */ 1844 static void megasas_set_static_target_properties(struct scsi_device *sdev, 1845 bool is_target_prop) 1846 { 1847 u16 target_index = 0; 1848 u8 interface_type; 1849 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN; 1850 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; 1851 u32 tgt_device_qd; 1852 struct megasas_instance *instance; 1853 struct MR_PRIV_DEVICE *mr_device_priv_data; 1854 1855 instance = megasas_lookup_instance(sdev->host->host_no); 1856 mr_device_priv_data = sdev->hostdata; 1857 interface_type = mr_device_priv_data->interface_type; 1858 1859 /* 1860 * The RAID firmware may require extended timeouts. 1861 */ 1862 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); 1863 1864 target_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 1865 1866 switch (interface_type) { 1867 case SAS_PD: 1868 device_qd = MEGASAS_SAS_QD; 1869 break; 1870 case SATA_PD: 1871 device_qd = MEGASAS_SATA_QD; 1872 break; 1873 case NVME_PD: 1874 device_qd = MEGASAS_NVME_QD; 1875 break; 1876 } 1877 1878 if (is_target_prop) { 1879 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth); 1880 if (tgt_device_qd && 1881 (tgt_device_qd <= instance->host->can_queue)) 1882 device_qd = tgt_device_qd; 1883 1884 /* max_io_size_kb will be set to non zero for 1885 * nvme based vd and syspd. 1886 */ 1887 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb); 1888 } 1889 1890 if (instance->nvme_page_size && max_io_size_kb) 1891 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10)); 1892 1893 scsi_change_queue_depth(sdev, device_qd); 1894 1895 } 1896 1897 1898 static int megasas_slave_configure(struct scsi_device *sdev) 1899 { 1900 u16 pd_index = 0; 1901 struct megasas_instance *instance; 1902 int ret_target_prop = DCMD_FAILED; 1903 bool is_target_prop = false; 1904 1905 instance = megasas_lookup_instance(sdev->host->host_no); 1906 if (instance->pd_list_not_supported) { 1907 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { 1908 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1909 sdev->id; 1910 if (instance->pd_list[pd_index].driveState != 1911 MR_PD_STATE_SYSTEM) 1912 return -ENXIO; 1913 } 1914 } 1915 1916 mutex_lock(&instance->hba_mutex); 1917 /* Send DCMD to Firmware and cache the information */ 1918 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) 1919 megasas_get_pd_info(instance, sdev); 1920 1921 /* Some ventura firmware may not have instance->nvme_page_size set. 1922 * Do not send MR_DCMD_DRV_GET_TARGET_PROP 1923 */ 1924 if ((instance->tgt_prop) && (instance->nvme_page_size)) 1925 ret_target_prop = megasas_get_target_prop(instance, sdev); 1926 1927 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 1928 megasas_set_static_target_properties(sdev, is_target_prop); 1929 1930 mutex_unlock(&instance->hba_mutex); 1931 1932 /* This sdev property may change post OCR */ 1933 megasas_set_dynamic_target_properties(sdev); 1934 1935 return 0; 1936 } 1937 1938 static int megasas_slave_alloc(struct scsi_device *sdev) 1939 { 1940 u16 pd_index = 0; 1941 struct megasas_instance *instance ; 1942 struct MR_PRIV_DEVICE *mr_device_priv_data; 1943 1944 instance = megasas_lookup_instance(sdev->host->host_no); 1945 if (!MEGASAS_IS_LOGICAL(sdev)) { 1946 /* 1947 * Open the OS scan to the SYSTEM PD 1948 */ 1949 pd_index = 1950 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1951 sdev->id; 1952 if ((instance->pd_list_not_supported || 1953 instance->pd_list[pd_index].driveState == 1954 MR_PD_STATE_SYSTEM)) { 1955 goto scan_target; 1956 } 1957 return -ENXIO; 1958 } 1959 1960 scan_target: 1961 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), 1962 GFP_KERNEL); 1963 if (!mr_device_priv_data) 1964 return -ENOMEM; 1965 sdev->hostdata = mr_device_priv_data; 1966 return 0; 1967 } 1968 1969 static void megasas_slave_destroy(struct scsi_device *sdev) 1970 { 1971 kfree(sdev->hostdata); 1972 sdev->hostdata = NULL; 1973 } 1974 1975 /* 1976 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a 1977 * kill adapter 1978 * @instance: Adapter soft state 1979 * 1980 */ 1981 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) 1982 { 1983 int i; 1984 struct megasas_cmd *cmd_mfi; 1985 struct megasas_cmd_fusion *cmd_fusion; 1986 struct fusion_context *fusion = instance->ctrl_context; 1987 1988 /* Find all outstanding ioctls */ 1989 if (fusion) { 1990 for (i = 0; i < instance->max_fw_cmds; i++) { 1991 cmd_fusion = fusion->cmd_list[i]; 1992 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { 1993 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; 1994 if (cmd_mfi->sync_cmd && 1995 cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT) 1996 megasas_complete_cmd(instance, 1997 cmd_mfi, DID_OK); 1998 } 1999 } 2000 } else { 2001 for (i = 0; i < instance->max_fw_cmds; i++) { 2002 cmd_mfi = instance->cmd_list[i]; 2003 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != 2004 MFI_CMD_ABORT) 2005 megasas_complete_cmd(instance, cmd_mfi, DID_OK); 2006 } 2007 } 2008 } 2009 2010 2011 void megaraid_sas_kill_hba(struct megasas_instance *instance) 2012 { 2013 /* Set critical error to block I/O & ioctls in case caller didn't */ 2014 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2015 /* Wait 1 second to ensure IO or ioctls in build have posted */ 2016 msleep(1000); 2017 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 2018 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 2019 (instance->ctrl_context)) { 2020 writel(MFI_STOP_ADP, &instance->reg_set->doorbell); 2021 /* Flush */ 2022 readl(&instance->reg_set->doorbell); 2023 if (instance->requestorId && instance->peerIsPresent) 2024 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 2025 } else { 2026 writel(MFI_STOP_ADP, 2027 &instance->reg_set->inbound_doorbell); 2028 } 2029 /* Complete outstanding ioctls when adapter is killed */ 2030 megasas_complete_outstanding_ioctls(instance); 2031 } 2032 2033 /** 2034 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be 2035 * restored to max value 2036 * @instance: Adapter soft state 2037 * 2038 */ 2039 void 2040 megasas_check_and_restore_queue_depth(struct megasas_instance *instance) 2041 { 2042 unsigned long flags; 2043 2044 if (instance->flag & MEGASAS_FW_BUSY 2045 && time_after(jiffies, instance->last_time + 5 * HZ) 2046 && atomic_read(&instance->fw_outstanding) < 2047 instance->throttlequeuedepth + 1) { 2048 2049 spin_lock_irqsave(instance->host->host_lock, flags); 2050 instance->flag &= ~MEGASAS_FW_BUSY; 2051 2052 instance->host->can_queue = instance->cur_can_queue; 2053 spin_unlock_irqrestore(instance->host->host_lock, flags); 2054 } 2055 } 2056 2057 /** 2058 * megasas_complete_cmd_dpc - Returns FW's controller structure 2059 * @instance_addr: Address of adapter soft state 2060 * 2061 * Tasklet to complete cmds 2062 */ 2063 static void megasas_complete_cmd_dpc(unsigned long instance_addr) 2064 { 2065 u32 producer; 2066 u32 consumer; 2067 u32 context; 2068 struct megasas_cmd *cmd; 2069 struct megasas_instance *instance = 2070 (struct megasas_instance *)instance_addr; 2071 unsigned long flags; 2072 2073 /* If we have already declared adapter dead, donot complete cmds */ 2074 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 2075 return; 2076 2077 spin_lock_irqsave(&instance->completion_lock, flags); 2078 2079 producer = le32_to_cpu(*instance->producer); 2080 consumer = le32_to_cpu(*instance->consumer); 2081 2082 while (consumer != producer) { 2083 context = le32_to_cpu(instance->reply_queue[consumer]); 2084 if (context >= instance->max_fw_cmds) { 2085 dev_err(&instance->pdev->dev, "Unexpected context value %x\n", 2086 context); 2087 BUG(); 2088 } 2089 2090 cmd = instance->cmd_list[context]; 2091 2092 megasas_complete_cmd(instance, cmd, DID_OK); 2093 2094 consumer++; 2095 if (consumer == (instance->max_fw_cmds + 1)) { 2096 consumer = 0; 2097 } 2098 } 2099 2100 *instance->consumer = cpu_to_le32(producer); 2101 2102 spin_unlock_irqrestore(&instance->completion_lock, flags); 2103 2104 /* 2105 * Check if we can restore can_queue 2106 */ 2107 megasas_check_and_restore_queue_depth(instance); 2108 } 2109 2110 /** 2111 * megasas_start_timer - Initializes a timer object 2112 * @instance: Adapter soft state 2113 * @timer: timer object to be initialized 2114 * @fn: timer function 2115 * @interval: time interval between timer function call 2116 * 2117 */ 2118 void megasas_start_timer(struct megasas_instance *instance, 2119 struct timer_list *timer, 2120 void *fn, unsigned long interval) 2121 { 2122 init_timer(timer); 2123 timer->expires = jiffies + interval; 2124 timer->data = (unsigned long)instance; 2125 timer->function = fn; 2126 add_timer(timer); 2127 } 2128 2129 static void 2130 megasas_internal_reset_defer_cmds(struct megasas_instance *instance); 2131 2132 static void 2133 process_fw_state_change_wq(struct work_struct *work); 2134 2135 void megasas_do_ocr(struct megasas_instance *instance) 2136 { 2137 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 2138 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 2139 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 2140 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 2141 } 2142 instance->instancet->disable_intr(instance); 2143 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 2144 instance->issuepend_done = 0; 2145 2146 atomic_set(&instance->fw_outstanding, 0); 2147 megasas_internal_reset_defer_cmds(instance); 2148 process_fw_state_change_wq(&instance->work_init); 2149 } 2150 2151 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, 2152 int initial) 2153 { 2154 struct megasas_cmd *cmd; 2155 struct megasas_dcmd_frame *dcmd; 2156 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; 2157 dma_addr_t new_affiliation_111_h; 2158 int ld, retval = 0; 2159 u8 thisVf; 2160 2161 cmd = megasas_get_cmd(instance); 2162 2163 if (!cmd) { 2164 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" 2165 "Failed to get cmd for scsi%d\n", 2166 instance->host->host_no); 2167 return -ENOMEM; 2168 } 2169 2170 dcmd = &cmd->frame->dcmd; 2171 2172 if (!instance->vf_affiliation_111) { 2173 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2174 "affiliation for scsi%d\n", instance->host->host_no); 2175 megasas_return_cmd(instance, cmd); 2176 return -ENOMEM; 2177 } 2178 2179 if (initial) 2180 memset(instance->vf_affiliation_111, 0, 2181 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2182 else { 2183 new_affiliation_111 = 2184 pci_alloc_consistent(instance->pdev, 2185 sizeof(struct MR_LD_VF_AFFILIATION_111), 2186 &new_affiliation_111_h); 2187 if (!new_affiliation_111) { 2188 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2189 "memory for new affiliation for scsi%d\n", 2190 instance->host->host_no); 2191 megasas_return_cmd(instance, cmd); 2192 return -ENOMEM; 2193 } 2194 memset(new_affiliation_111, 0, 2195 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2196 } 2197 2198 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2199 2200 dcmd->cmd = MFI_CMD_DCMD; 2201 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2202 dcmd->sge_count = 1; 2203 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2204 dcmd->timeout = 0; 2205 dcmd->pad_0 = 0; 2206 dcmd->data_xfer_len = 2207 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); 2208 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); 2209 2210 if (initial) 2211 dcmd->sgl.sge32[0].phys_addr = 2212 cpu_to_le32(instance->vf_affiliation_111_h); 2213 else 2214 dcmd->sgl.sge32[0].phys_addr = 2215 cpu_to_le32(new_affiliation_111_h); 2216 2217 dcmd->sgl.sge32[0].length = cpu_to_le32( 2218 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2219 2220 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2221 "scsi%d\n", instance->host->host_no); 2222 2223 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2224 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2225 " failed with status 0x%x for scsi%d\n", 2226 dcmd->cmd_status, instance->host->host_no); 2227 retval = 1; /* Do a scan if we couldn't get affiliation */ 2228 goto out; 2229 } 2230 2231 if (!initial) { 2232 thisVf = new_affiliation_111->thisVf; 2233 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) 2234 if (instance->vf_affiliation_111->map[ld].policy[thisVf] != 2235 new_affiliation_111->map[ld].policy[thisVf]) { 2236 dev_warn(&instance->pdev->dev, "SR-IOV: " 2237 "Got new LD/VF affiliation for scsi%d\n", 2238 instance->host->host_no); 2239 memcpy(instance->vf_affiliation_111, 2240 new_affiliation_111, 2241 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2242 retval = 1; 2243 goto out; 2244 } 2245 } 2246 out: 2247 if (new_affiliation_111) { 2248 pci_free_consistent(instance->pdev, 2249 sizeof(struct MR_LD_VF_AFFILIATION_111), 2250 new_affiliation_111, 2251 new_affiliation_111_h); 2252 } 2253 2254 megasas_return_cmd(instance, cmd); 2255 2256 return retval; 2257 } 2258 2259 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, 2260 int initial) 2261 { 2262 struct megasas_cmd *cmd; 2263 struct megasas_dcmd_frame *dcmd; 2264 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; 2265 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; 2266 dma_addr_t new_affiliation_h; 2267 int i, j, retval = 0, found = 0, doscan = 0; 2268 u8 thisVf; 2269 2270 cmd = megasas_get_cmd(instance); 2271 2272 if (!cmd) { 2273 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " 2274 "Failed to get cmd for scsi%d\n", 2275 instance->host->host_no); 2276 return -ENOMEM; 2277 } 2278 2279 dcmd = &cmd->frame->dcmd; 2280 2281 if (!instance->vf_affiliation) { 2282 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2283 "affiliation for scsi%d\n", instance->host->host_no); 2284 megasas_return_cmd(instance, cmd); 2285 return -ENOMEM; 2286 } 2287 2288 if (initial) 2289 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2290 sizeof(struct MR_LD_VF_AFFILIATION)); 2291 else { 2292 new_affiliation = 2293 pci_alloc_consistent(instance->pdev, 2294 (MAX_LOGICAL_DRIVES + 1) * 2295 sizeof(struct MR_LD_VF_AFFILIATION), 2296 &new_affiliation_h); 2297 if (!new_affiliation) { 2298 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2299 "memory for new affiliation for scsi%d\n", 2300 instance->host->host_no); 2301 megasas_return_cmd(instance, cmd); 2302 return -ENOMEM; 2303 } 2304 memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2305 sizeof(struct MR_LD_VF_AFFILIATION)); 2306 } 2307 2308 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2309 2310 dcmd->cmd = MFI_CMD_DCMD; 2311 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2312 dcmd->sge_count = 1; 2313 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2314 dcmd->timeout = 0; 2315 dcmd->pad_0 = 0; 2316 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2317 sizeof(struct MR_LD_VF_AFFILIATION)); 2318 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); 2319 2320 if (initial) 2321 dcmd->sgl.sge32[0].phys_addr = 2322 cpu_to_le32(instance->vf_affiliation_h); 2323 else 2324 dcmd->sgl.sge32[0].phys_addr = 2325 cpu_to_le32(new_affiliation_h); 2326 2327 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2328 sizeof(struct MR_LD_VF_AFFILIATION)); 2329 2330 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2331 "scsi%d\n", instance->host->host_no); 2332 2333 2334 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2335 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2336 " failed with status 0x%x for scsi%d\n", 2337 dcmd->cmd_status, instance->host->host_no); 2338 retval = 1; /* Do a scan if we couldn't get affiliation */ 2339 goto out; 2340 } 2341 2342 if (!initial) { 2343 if (!new_affiliation->ldCount) { 2344 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2345 "affiliation for passive path for scsi%d\n", 2346 instance->host->host_no); 2347 retval = 1; 2348 goto out; 2349 } 2350 newmap = new_affiliation->map; 2351 savedmap = instance->vf_affiliation->map; 2352 thisVf = new_affiliation->thisVf; 2353 for (i = 0 ; i < new_affiliation->ldCount; i++) { 2354 found = 0; 2355 for (j = 0; j < instance->vf_affiliation->ldCount; 2356 j++) { 2357 if (newmap->ref.targetId == 2358 savedmap->ref.targetId) { 2359 found = 1; 2360 if (newmap->policy[thisVf] != 2361 savedmap->policy[thisVf]) { 2362 doscan = 1; 2363 goto out; 2364 } 2365 } 2366 savedmap = (struct MR_LD_VF_MAP *) 2367 ((unsigned char *)savedmap + 2368 savedmap->size); 2369 } 2370 if (!found && newmap->policy[thisVf] != 2371 MR_LD_ACCESS_HIDDEN) { 2372 doscan = 1; 2373 goto out; 2374 } 2375 newmap = (struct MR_LD_VF_MAP *) 2376 ((unsigned char *)newmap + newmap->size); 2377 } 2378 2379 newmap = new_affiliation->map; 2380 savedmap = instance->vf_affiliation->map; 2381 2382 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { 2383 found = 0; 2384 for (j = 0 ; j < new_affiliation->ldCount; j++) { 2385 if (savedmap->ref.targetId == 2386 newmap->ref.targetId) { 2387 found = 1; 2388 if (savedmap->policy[thisVf] != 2389 newmap->policy[thisVf]) { 2390 doscan = 1; 2391 goto out; 2392 } 2393 } 2394 newmap = (struct MR_LD_VF_MAP *) 2395 ((unsigned char *)newmap + 2396 newmap->size); 2397 } 2398 if (!found && savedmap->policy[thisVf] != 2399 MR_LD_ACCESS_HIDDEN) { 2400 doscan = 1; 2401 goto out; 2402 } 2403 savedmap = (struct MR_LD_VF_MAP *) 2404 ((unsigned char *)savedmap + 2405 savedmap->size); 2406 } 2407 } 2408 out: 2409 if (doscan) { 2410 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2411 "affiliation for scsi%d\n", instance->host->host_no); 2412 memcpy(instance->vf_affiliation, new_affiliation, 2413 new_affiliation->size); 2414 retval = 1; 2415 } 2416 2417 if (new_affiliation) 2418 pci_free_consistent(instance->pdev, 2419 (MAX_LOGICAL_DRIVES + 1) * 2420 sizeof(struct MR_LD_VF_AFFILIATION), 2421 new_affiliation, new_affiliation_h); 2422 megasas_return_cmd(instance, cmd); 2423 2424 return retval; 2425 } 2426 2427 /* This function will get the current SR-IOV LD/VF affiliation */ 2428 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 2429 int initial) 2430 { 2431 int retval; 2432 2433 if (instance->PlasmaFW111) 2434 retval = megasas_get_ld_vf_affiliation_111(instance, initial); 2435 else 2436 retval = megasas_get_ld_vf_affiliation_12(instance, initial); 2437 return retval; 2438 } 2439 2440 /* This function will tell FW to start the SR-IOV heartbeat */ 2441 int megasas_sriov_start_heartbeat(struct megasas_instance *instance, 2442 int initial) 2443 { 2444 struct megasas_cmd *cmd; 2445 struct megasas_dcmd_frame *dcmd; 2446 int retval = 0; 2447 2448 cmd = megasas_get_cmd(instance); 2449 2450 if (!cmd) { 2451 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " 2452 "Failed to get cmd for scsi%d\n", 2453 instance->host->host_no); 2454 return -ENOMEM; 2455 } 2456 2457 dcmd = &cmd->frame->dcmd; 2458 2459 if (initial) { 2460 instance->hb_host_mem = 2461 pci_zalloc_consistent(instance->pdev, 2462 sizeof(struct MR_CTRL_HB_HOST_MEM), 2463 &instance->hb_host_mem_h); 2464 if (!instance->hb_host_mem) { 2465 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" 2466 " memory for heartbeat host memory for scsi%d\n", 2467 instance->host->host_no); 2468 retval = -ENOMEM; 2469 goto out; 2470 } 2471 } 2472 2473 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2474 2475 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2476 dcmd->cmd = MFI_CMD_DCMD; 2477 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2478 dcmd->sge_count = 1; 2479 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2480 dcmd->timeout = 0; 2481 dcmd->pad_0 = 0; 2482 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2483 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); 2484 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h); 2485 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2486 2487 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", 2488 instance->host->host_no); 2489 2490 if (instance->ctrl_context && !instance->mask_interrupts) 2491 retval = megasas_issue_blocked_cmd(instance, cmd, 2492 MEGASAS_ROUTINE_WAIT_TIME_VF); 2493 else 2494 retval = megasas_issue_polled(instance, cmd); 2495 2496 if (retval) { 2497 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" 2498 "_MEM_ALLOC DCMD %s for scsi%d\n", 2499 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? 2500 "timed out" : "failed", instance->host->host_no); 2501 retval = 1; 2502 } 2503 2504 out: 2505 megasas_return_cmd(instance, cmd); 2506 2507 return retval; 2508 } 2509 2510 /* Handler for SR-IOV heartbeat */ 2511 void megasas_sriov_heartbeat_handler(unsigned long instance_addr) 2512 { 2513 struct megasas_instance *instance = 2514 (struct megasas_instance *)instance_addr; 2515 2516 if (instance->hb_host_mem->HB.fwCounter != 2517 instance->hb_host_mem->HB.driverCounter) { 2518 instance->hb_host_mem->HB.driverCounter = 2519 instance->hb_host_mem->HB.fwCounter; 2520 mod_timer(&instance->sriov_heartbeat_timer, 2521 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 2522 } else { 2523 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " 2524 "completed for scsi%d\n", instance->host->host_no); 2525 schedule_work(&instance->work_init); 2526 } 2527 } 2528 2529 /** 2530 * megasas_wait_for_outstanding - Wait for all outstanding cmds 2531 * @instance: Adapter soft state 2532 * 2533 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to 2534 * complete all its outstanding commands. Returns error if one or more IOs 2535 * are pending after this time period. It also marks the controller dead. 2536 */ 2537 static int megasas_wait_for_outstanding(struct megasas_instance *instance) 2538 { 2539 int i, sl, outstanding; 2540 u32 reset_index; 2541 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 2542 unsigned long flags; 2543 struct list_head clist_local; 2544 struct megasas_cmd *reset_cmd; 2545 u32 fw_state; 2546 2547 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2548 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", 2549 __func__, __LINE__); 2550 return FAILED; 2551 } 2552 2553 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2554 2555 INIT_LIST_HEAD(&clist_local); 2556 spin_lock_irqsave(&instance->hba_lock, flags); 2557 list_splice_init(&instance->internal_reset_pending_q, 2558 &clist_local); 2559 spin_unlock_irqrestore(&instance->hba_lock, flags); 2560 2561 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); 2562 for (i = 0; i < wait_time; i++) { 2563 msleep(1000); 2564 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 2565 break; 2566 } 2567 2568 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2569 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); 2570 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2571 return FAILED; 2572 } 2573 2574 reset_index = 0; 2575 while (!list_empty(&clist_local)) { 2576 reset_cmd = list_entry((&clist_local)->next, 2577 struct megasas_cmd, list); 2578 list_del_init(&reset_cmd->list); 2579 if (reset_cmd->scmd) { 2580 reset_cmd->scmd->result = DID_REQUEUE << 16; 2581 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", 2582 reset_index, reset_cmd, 2583 reset_cmd->scmd->cmnd[0]); 2584 2585 reset_cmd->scmd->scsi_done(reset_cmd->scmd); 2586 megasas_return_cmd(instance, reset_cmd); 2587 } else if (reset_cmd->sync_cmd) { 2588 dev_notice(&instance->pdev->dev, "%p synch cmds" 2589 "reset queue\n", 2590 reset_cmd); 2591 2592 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 2593 instance->instancet->fire_cmd(instance, 2594 reset_cmd->frame_phys_addr, 2595 0, instance->reg_set); 2596 } else { 2597 dev_notice(&instance->pdev->dev, "%p unexpected" 2598 "cmds lst\n", 2599 reset_cmd); 2600 } 2601 reset_index++; 2602 } 2603 2604 return SUCCESS; 2605 } 2606 2607 for (i = 0; i < resetwaittime; i++) { 2608 outstanding = atomic_read(&instance->fw_outstanding); 2609 2610 if (!outstanding) 2611 break; 2612 2613 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 2614 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " 2615 "commands to complete\n",i,outstanding); 2616 /* 2617 * Call cmd completion routine. Cmd to be 2618 * be completed directly without depending on isr. 2619 */ 2620 megasas_complete_cmd_dpc((unsigned long)instance); 2621 } 2622 2623 msleep(1000); 2624 } 2625 2626 i = 0; 2627 outstanding = atomic_read(&instance->fw_outstanding); 2628 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; 2629 2630 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2631 goto no_outstanding; 2632 2633 if (instance->disableOnlineCtrlReset) 2634 goto kill_hba_and_failed; 2635 do { 2636 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { 2637 dev_info(&instance->pdev->dev, 2638 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n", 2639 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); 2640 if (i == 3) 2641 goto kill_hba_and_failed; 2642 megasas_do_ocr(instance); 2643 2644 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2645 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", 2646 __func__, __LINE__); 2647 return FAILED; 2648 } 2649 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", 2650 __func__, __LINE__); 2651 2652 for (sl = 0; sl < 10; sl++) 2653 msleep(500); 2654 2655 outstanding = atomic_read(&instance->fw_outstanding); 2656 2657 fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; 2658 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2659 goto no_outstanding; 2660 } 2661 i++; 2662 } while (i <= 3); 2663 2664 no_outstanding: 2665 2666 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", 2667 __func__, __LINE__); 2668 return SUCCESS; 2669 2670 kill_hba_and_failed: 2671 2672 /* Reset not supported, kill adapter */ 2673 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" 2674 " disableOnlineCtrlReset %d fw_outstanding %d \n", 2675 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, 2676 atomic_read(&instance->fw_outstanding)); 2677 megasas_dump_pending_frames(instance); 2678 megaraid_sas_kill_hba(instance); 2679 2680 return FAILED; 2681 } 2682 2683 /** 2684 * megasas_generic_reset - Generic reset routine 2685 * @scmd: Mid-layer SCSI command 2686 * 2687 * This routine implements a generic reset handler for device, bus and host 2688 * reset requests. Device, bus and host specific reset handlers can use this 2689 * function after they do their specific tasks. 2690 */ 2691 static int megasas_generic_reset(struct scsi_cmnd *scmd) 2692 { 2693 int ret_val; 2694 struct megasas_instance *instance; 2695 2696 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2697 2698 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", 2699 scmd->cmnd[0], scmd->retries); 2700 2701 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2702 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); 2703 return FAILED; 2704 } 2705 2706 ret_val = megasas_wait_for_outstanding(instance); 2707 if (ret_val == SUCCESS) 2708 dev_notice(&instance->pdev->dev, "reset successful\n"); 2709 else 2710 dev_err(&instance->pdev->dev, "failed to do reset\n"); 2711 2712 return ret_val; 2713 } 2714 2715 /** 2716 * megasas_reset_timer - quiesce the adapter if required 2717 * @scmd: scsi cmnd 2718 * 2719 * Sets the FW busy flag and reduces the host->can_queue if the 2720 * cmd has not been completed within the timeout period. 2721 */ 2722 static enum 2723 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) 2724 { 2725 struct megasas_instance *instance; 2726 unsigned long flags; 2727 2728 if (time_after(jiffies, scmd->jiffies_at_alloc + 2729 (scmd_timeout * 2) * HZ)) { 2730 return BLK_EH_NOT_HANDLED; 2731 } 2732 2733 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2734 if (!(instance->flag & MEGASAS_FW_BUSY)) { 2735 /* FW is busy, throttle IO */ 2736 spin_lock_irqsave(instance->host->host_lock, flags); 2737 2738 instance->host->can_queue = instance->throttlequeuedepth; 2739 instance->last_time = jiffies; 2740 instance->flag |= MEGASAS_FW_BUSY; 2741 2742 spin_unlock_irqrestore(instance->host->host_lock, flags); 2743 } 2744 return BLK_EH_RESET_TIMER; 2745 } 2746 2747 /** 2748 * megasas_dump_frame - This function will dump MPT/MFI frame 2749 */ 2750 static inline void 2751 megasas_dump_frame(void *mpi_request, int sz) 2752 { 2753 int i; 2754 __le32 *mfp = (__le32 *)mpi_request; 2755 2756 printk(KERN_INFO "IO request frame:\n\t"); 2757 for (i = 0; i < sz / sizeof(__le32); i++) { 2758 if (i && ((i % 8) == 0)) 2759 printk("\n\t"); 2760 printk("%08x ", le32_to_cpu(mfp[i])); 2761 } 2762 printk("\n"); 2763 } 2764 2765 /** 2766 * megasas_reset_bus_host - Bus & host reset handler entry point 2767 */ 2768 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 2769 { 2770 int ret; 2771 struct megasas_instance *instance; 2772 2773 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2774 2775 scmd_printk(KERN_INFO, scmd, 2776 "Controller reset is requested due to IO timeout\n" 2777 "SCSI command pointer: (%p)\t SCSI host state: %d\t" 2778 " SCSI host busy: %d\t FW outstanding: %d\n", 2779 scmd, scmd->device->host->shost_state, 2780 atomic_read((atomic_t *)&scmd->device->host->host_busy), 2781 atomic_read(&instance->fw_outstanding)); 2782 2783 /* 2784 * First wait for all commands to complete 2785 */ 2786 if (instance->ctrl_context) { 2787 struct megasas_cmd_fusion *cmd; 2788 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr; 2789 if (cmd) 2790 megasas_dump_frame(cmd->io_request, 2791 sizeof(struct MPI2_RAID_SCSI_IO_REQUEST)); 2792 ret = megasas_reset_fusion(scmd->device->host, 2793 SCSIIO_TIMEOUT_OCR); 2794 } else 2795 ret = megasas_generic_reset(scmd); 2796 2797 return ret; 2798 } 2799 2800 /** 2801 * megasas_task_abort - Issues task abort request to firmware 2802 * (supported only for fusion adapters) 2803 * @scmd: SCSI command pointer 2804 */ 2805 static int megasas_task_abort(struct scsi_cmnd *scmd) 2806 { 2807 int ret; 2808 struct megasas_instance *instance; 2809 2810 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2811 2812 if (instance->ctrl_context) 2813 ret = megasas_task_abort_fusion(scmd); 2814 else { 2815 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 2816 ret = FAILED; 2817 } 2818 2819 return ret; 2820 } 2821 2822 /** 2823 * megasas_reset_target: Issues target reset request to firmware 2824 * (supported only for fusion adapters) 2825 * @scmd: SCSI command pointer 2826 */ 2827 static int megasas_reset_target(struct scsi_cmnd *scmd) 2828 { 2829 int ret; 2830 struct megasas_instance *instance; 2831 2832 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2833 2834 if (instance->ctrl_context) 2835 ret = megasas_reset_target_fusion(scmd); 2836 else { 2837 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 2838 ret = FAILED; 2839 } 2840 2841 return ret; 2842 } 2843 2844 /** 2845 * megasas_bios_param - Returns disk geometry for a disk 2846 * @sdev: device handle 2847 * @bdev: block device 2848 * @capacity: drive capacity 2849 * @geom: geometry parameters 2850 */ 2851 static int 2852 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, 2853 sector_t capacity, int geom[]) 2854 { 2855 int heads; 2856 int sectors; 2857 sector_t cylinders; 2858 unsigned long tmp; 2859 2860 /* Default heads (64) & sectors (32) */ 2861 heads = 64; 2862 sectors = 32; 2863 2864 tmp = heads * sectors; 2865 cylinders = capacity; 2866 2867 sector_div(cylinders, tmp); 2868 2869 /* 2870 * Handle extended translation size for logical drives > 1Gb 2871 */ 2872 2873 if (capacity >= 0x200000) { 2874 heads = 255; 2875 sectors = 63; 2876 tmp = heads*sectors; 2877 cylinders = capacity; 2878 sector_div(cylinders, tmp); 2879 } 2880 2881 geom[0] = heads; 2882 geom[1] = sectors; 2883 geom[2] = cylinders; 2884 2885 return 0; 2886 } 2887 2888 static void megasas_aen_polling(struct work_struct *work); 2889 2890 /** 2891 * megasas_service_aen - Processes an event notification 2892 * @instance: Adapter soft state 2893 * @cmd: AEN command completed by the ISR 2894 * 2895 * For AEN, driver sends a command down to FW that is held by the FW till an 2896 * event occurs. When an event of interest occurs, FW completes the command 2897 * that it was previously holding. 2898 * 2899 * This routines sends SIGIO signal to processes that have registered with the 2900 * driver for AEN. 2901 */ 2902 static void 2903 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 2904 { 2905 unsigned long flags; 2906 2907 /* 2908 * Don't signal app if it is just an aborted previously registered aen 2909 */ 2910 if ((!cmd->abort_aen) && (instance->unload == 0)) { 2911 spin_lock_irqsave(&poll_aen_lock, flags); 2912 megasas_poll_wait_aen = 1; 2913 spin_unlock_irqrestore(&poll_aen_lock, flags); 2914 wake_up(&megasas_poll_wait); 2915 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 2916 } 2917 else 2918 cmd->abort_aen = 0; 2919 2920 instance->aen_cmd = NULL; 2921 2922 megasas_return_cmd(instance, cmd); 2923 2924 if ((instance->unload == 0) && 2925 ((instance->issuepend_done == 1))) { 2926 struct megasas_aen_event *ev; 2927 2928 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 2929 if (!ev) { 2930 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 2931 } else { 2932 ev->instance = instance; 2933 instance->ev = ev; 2934 INIT_DELAYED_WORK(&ev->hotplug_work, 2935 megasas_aen_polling); 2936 schedule_delayed_work(&ev->hotplug_work, 0); 2937 } 2938 } 2939 } 2940 2941 static ssize_t 2942 megasas_fw_crash_buffer_store(struct device *cdev, 2943 struct device_attribute *attr, const char *buf, size_t count) 2944 { 2945 struct Scsi_Host *shost = class_to_shost(cdev); 2946 struct megasas_instance *instance = 2947 (struct megasas_instance *) shost->hostdata; 2948 int val = 0; 2949 unsigned long flags; 2950 2951 if (kstrtoint(buf, 0, &val) != 0) 2952 return -EINVAL; 2953 2954 spin_lock_irqsave(&instance->crashdump_lock, flags); 2955 instance->fw_crash_buffer_offset = val; 2956 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 2957 return strlen(buf); 2958 } 2959 2960 static ssize_t 2961 megasas_fw_crash_buffer_show(struct device *cdev, 2962 struct device_attribute *attr, char *buf) 2963 { 2964 struct Scsi_Host *shost = class_to_shost(cdev); 2965 struct megasas_instance *instance = 2966 (struct megasas_instance *) shost->hostdata; 2967 u32 size; 2968 unsigned long buff_addr; 2969 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 2970 unsigned long src_addr; 2971 unsigned long flags; 2972 u32 buff_offset; 2973 2974 spin_lock_irqsave(&instance->crashdump_lock, flags); 2975 buff_offset = instance->fw_crash_buffer_offset; 2976 if (!instance->crash_dump_buf && 2977 !((instance->fw_crash_state == AVAILABLE) || 2978 (instance->fw_crash_state == COPYING))) { 2979 dev_err(&instance->pdev->dev, 2980 "Firmware crash dump is not available\n"); 2981 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 2982 return -EINVAL; 2983 } 2984 2985 buff_addr = (unsigned long) buf; 2986 2987 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 2988 dev_err(&instance->pdev->dev, 2989 "Firmware crash dump offset is out of range\n"); 2990 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 2991 return 0; 2992 } 2993 2994 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 2995 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 2996 2997 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 2998 (buff_offset % dmachunk); 2999 memcpy(buf, (void *)src_addr, size); 3000 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3001 3002 return size; 3003 } 3004 3005 static ssize_t 3006 megasas_fw_crash_buffer_size_show(struct device *cdev, 3007 struct device_attribute *attr, char *buf) 3008 { 3009 struct Scsi_Host *shost = class_to_shost(cdev); 3010 struct megasas_instance *instance = 3011 (struct megasas_instance *) shost->hostdata; 3012 3013 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3014 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3015 } 3016 3017 static ssize_t 3018 megasas_fw_crash_state_store(struct device *cdev, 3019 struct device_attribute *attr, const char *buf, size_t count) 3020 { 3021 struct Scsi_Host *shost = class_to_shost(cdev); 3022 struct megasas_instance *instance = 3023 (struct megasas_instance *) shost->hostdata; 3024 int val = 0; 3025 unsigned long flags; 3026 3027 if (kstrtoint(buf, 0, &val) != 0) 3028 return -EINVAL; 3029 3030 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3031 dev_err(&instance->pdev->dev, "application updates invalid " 3032 "firmware crash state\n"); 3033 return -EINVAL; 3034 } 3035 3036 instance->fw_crash_state = val; 3037 3038 if ((val == COPIED) || (val == COPY_ERROR)) { 3039 spin_lock_irqsave(&instance->crashdump_lock, flags); 3040 megasas_free_host_crash_buffer(instance); 3041 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3042 if (val == COPY_ERROR) 3043 dev_info(&instance->pdev->dev, "application failed to " 3044 "copy Firmware crash dump\n"); 3045 else 3046 dev_info(&instance->pdev->dev, "Firmware crash dump " 3047 "copied successfully\n"); 3048 } 3049 return strlen(buf); 3050 } 3051 3052 static ssize_t 3053 megasas_fw_crash_state_show(struct device *cdev, 3054 struct device_attribute *attr, char *buf) 3055 { 3056 struct Scsi_Host *shost = class_to_shost(cdev); 3057 struct megasas_instance *instance = 3058 (struct megasas_instance *) shost->hostdata; 3059 3060 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3061 } 3062 3063 static ssize_t 3064 megasas_page_size_show(struct device *cdev, 3065 struct device_attribute *attr, char *buf) 3066 { 3067 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3068 } 3069 3070 static ssize_t 3071 megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3072 char *buf) 3073 { 3074 struct Scsi_Host *shost = class_to_shost(cdev); 3075 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3076 3077 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3078 } 3079 3080 static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR, 3081 megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store); 3082 static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO, 3083 megasas_fw_crash_buffer_size_show, NULL); 3084 static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR, 3085 megasas_fw_crash_state_show, megasas_fw_crash_state_store); 3086 static DEVICE_ATTR(page_size, S_IRUGO, 3087 megasas_page_size_show, NULL); 3088 static DEVICE_ATTR(ldio_outstanding, S_IRUGO, 3089 megasas_ldio_outstanding_show, NULL); 3090 3091 struct device_attribute *megaraid_host_attrs[] = { 3092 &dev_attr_fw_crash_buffer_size, 3093 &dev_attr_fw_crash_buffer, 3094 &dev_attr_fw_crash_state, 3095 &dev_attr_page_size, 3096 &dev_attr_ldio_outstanding, 3097 NULL, 3098 }; 3099 3100 /* 3101 * Scsi host template for megaraid_sas driver 3102 */ 3103 static struct scsi_host_template megasas_template = { 3104 3105 .module = THIS_MODULE, 3106 .name = "Avago SAS based MegaRAID driver", 3107 .proc_name = "megaraid_sas", 3108 .slave_configure = megasas_slave_configure, 3109 .slave_alloc = megasas_slave_alloc, 3110 .slave_destroy = megasas_slave_destroy, 3111 .queuecommand = megasas_queue_command, 3112 .eh_target_reset_handler = megasas_reset_target, 3113 .eh_abort_handler = megasas_task_abort, 3114 .eh_host_reset_handler = megasas_reset_bus_host, 3115 .eh_timed_out = megasas_reset_timer, 3116 .shost_attrs = megaraid_host_attrs, 3117 .bios_param = megasas_bios_param, 3118 .use_clustering = ENABLE_CLUSTERING, 3119 .change_queue_depth = scsi_change_queue_depth, 3120 .no_write_same = 1, 3121 }; 3122 3123 /** 3124 * megasas_complete_int_cmd - Completes an internal command 3125 * @instance: Adapter soft state 3126 * @cmd: Command to be completed 3127 * 3128 * The megasas_issue_blocked_cmd() function waits for a command to complete 3129 * after it issues a command. This function wakes up that waiting routine by 3130 * calling wake_up() on the wait queue. 3131 */ 3132 static void 3133 megasas_complete_int_cmd(struct megasas_instance *instance, 3134 struct megasas_cmd *cmd) 3135 { 3136 cmd->cmd_status_drv = cmd->frame->io.cmd_status; 3137 wake_up(&instance->int_cmd_wait_q); 3138 } 3139 3140 /** 3141 * megasas_complete_abort - Completes aborting a command 3142 * @instance: Adapter soft state 3143 * @cmd: Cmd that was issued to abort another cmd 3144 * 3145 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3146 * after it issues an abort on a previously issued command. This function 3147 * wakes up all functions waiting on the same wait queue. 3148 */ 3149 static void 3150 megasas_complete_abort(struct megasas_instance *instance, 3151 struct megasas_cmd *cmd) 3152 { 3153 if (cmd->sync_cmd) { 3154 cmd->sync_cmd = 0; 3155 cmd->cmd_status_drv = 0; 3156 wake_up(&instance->abort_cmd_wait_q); 3157 } 3158 } 3159 3160 /** 3161 * megasas_complete_cmd - Completes a command 3162 * @instance: Adapter soft state 3163 * @cmd: Command to be completed 3164 * @alt_status: If non-zero, use this value as status to 3165 * SCSI mid-layer instead of the value returned 3166 * by the FW. This should be used if caller wants 3167 * an alternate status (as in the case of aborted 3168 * commands) 3169 */ 3170 void 3171 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3172 u8 alt_status) 3173 { 3174 int exception = 0; 3175 struct megasas_header *hdr = &cmd->frame->hdr; 3176 unsigned long flags; 3177 struct fusion_context *fusion = instance->ctrl_context; 3178 u32 opcode, status; 3179 3180 /* flag for the retry reset */ 3181 cmd->retry_for_fw_reset = 0; 3182 3183 if (cmd->scmd) 3184 cmd->scmd->SCp.ptr = NULL; 3185 3186 switch (hdr->cmd) { 3187 case MFI_CMD_INVALID: 3188 /* Some older 1068 controller FW may keep a pended 3189 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3190 when booting the kdump kernel. Ignore this command to 3191 prevent a kernel panic on shutdown of the kdump kernel. */ 3192 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3193 "completed\n"); 3194 dev_warn(&instance->pdev->dev, "If you have a controller " 3195 "other than PERC5, please upgrade your firmware\n"); 3196 break; 3197 case MFI_CMD_PD_SCSI_IO: 3198 case MFI_CMD_LD_SCSI_IO: 3199 3200 /* 3201 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3202 * issued either through an IO path or an IOCTL path. If it 3203 * was via IOCTL, we will send it to internal completion. 3204 */ 3205 if (cmd->sync_cmd) { 3206 cmd->sync_cmd = 0; 3207 megasas_complete_int_cmd(instance, cmd); 3208 break; 3209 } 3210 3211 case MFI_CMD_LD_READ: 3212 case MFI_CMD_LD_WRITE: 3213 3214 if (alt_status) { 3215 cmd->scmd->result = alt_status << 16; 3216 exception = 1; 3217 } 3218 3219 if (exception) { 3220 3221 atomic_dec(&instance->fw_outstanding); 3222 3223 scsi_dma_unmap(cmd->scmd); 3224 cmd->scmd->scsi_done(cmd->scmd); 3225 megasas_return_cmd(instance, cmd); 3226 3227 break; 3228 } 3229 3230 switch (hdr->cmd_status) { 3231 3232 case MFI_STAT_OK: 3233 cmd->scmd->result = DID_OK << 16; 3234 break; 3235 3236 case MFI_STAT_SCSI_IO_FAILED: 3237 case MFI_STAT_LD_INIT_IN_PROGRESS: 3238 cmd->scmd->result = 3239 (DID_ERROR << 16) | hdr->scsi_status; 3240 break; 3241 3242 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3243 3244 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3245 3246 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3247 memset(cmd->scmd->sense_buffer, 0, 3248 SCSI_SENSE_BUFFERSIZE); 3249 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3250 hdr->sense_len); 3251 3252 cmd->scmd->result |= DRIVER_SENSE << 24; 3253 } 3254 3255 break; 3256 3257 case MFI_STAT_LD_OFFLINE: 3258 case MFI_STAT_DEVICE_NOT_FOUND: 3259 cmd->scmd->result = DID_BAD_TARGET << 16; 3260 break; 3261 3262 default: 3263 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3264 hdr->cmd_status); 3265 cmd->scmd->result = DID_ERROR << 16; 3266 break; 3267 } 3268 3269 atomic_dec(&instance->fw_outstanding); 3270 3271 scsi_dma_unmap(cmd->scmd); 3272 cmd->scmd->scsi_done(cmd->scmd); 3273 megasas_return_cmd(instance, cmd); 3274 3275 break; 3276 3277 case MFI_CMD_SMP: 3278 case MFI_CMD_STP: 3279 case MFI_CMD_DCMD: 3280 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3281 /* Check for LD map update */ 3282 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3283 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3284 fusion->fast_path_io = 0; 3285 spin_lock_irqsave(instance->host->host_lock, flags); 3286 instance->map_update_cmd = NULL; 3287 if (cmd->frame->hdr.cmd_status != 0) { 3288 if (cmd->frame->hdr.cmd_status != 3289 MFI_STAT_NOT_FOUND) 3290 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3291 cmd->frame->hdr.cmd_status); 3292 else { 3293 megasas_return_cmd(instance, cmd); 3294 spin_unlock_irqrestore( 3295 instance->host->host_lock, 3296 flags); 3297 break; 3298 } 3299 } else 3300 instance->map_id++; 3301 megasas_return_cmd(instance, cmd); 3302 3303 /* 3304 * Set fast path IO to ZERO. 3305 * Validate Map will set proper value. 3306 * Meanwhile all IOs will go as LD IO. 3307 */ 3308 if (MR_ValidateMapInfo(instance)) 3309 fusion->fast_path_io = 1; 3310 else 3311 fusion->fast_path_io = 0; 3312 megasas_sync_map_info(instance); 3313 spin_unlock_irqrestore(instance->host->host_lock, 3314 flags); 3315 break; 3316 } 3317 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3318 opcode == MR_DCMD_CTRL_EVENT_GET) { 3319 spin_lock_irqsave(&poll_aen_lock, flags); 3320 megasas_poll_wait_aen = 0; 3321 spin_unlock_irqrestore(&poll_aen_lock, flags); 3322 } 3323 3324 /* FW has an updated PD sequence */ 3325 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3326 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3327 3328 spin_lock_irqsave(instance->host->host_lock, flags); 3329 status = cmd->frame->hdr.cmd_status; 3330 instance->jbod_seq_cmd = NULL; 3331 megasas_return_cmd(instance, cmd); 3332 3333 if (status == MFI_STAT_OK) { 3334 instance->pd_seq_map_id++; 3335 /* Re-register a pd sync seq num cmd */ 3336 if (megasas_sync_pd_seq_num(instance, true)) 3337 instance->use_seqnum_jbod_fp = false; 3338 } else 3339 instance->use_seqnum_jbod_fp = false; 3340 3341 spin_unlock_irqrestore(instance->host->host_lock, flags); 3342 break; 3343 } 3344 3345 /* 3346 * See if got an event notification 3347 */ 3348 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3349 megasas_service_aen(instance, cmd); 3350 else 3351 megasas_complete_int_cmd(instance, cmd); 3352 3353 break; 3354 3355 case MFI_CMD_ABORT: 3356 /* 3357 * Cmd issued to abort another cmd returned 3358 */ 3359 megasas_complete_abort(instance, cmd); 3360 break; 3361 3362 default: 3363 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3364 hdr->cmd); 3365 break; 3366 } 3367 } 3368 3369 /** 3370 * megasas_issue_pending_cmds_again - issue all pending cmds 3371 * in FW again because of the fw reset 3372 * @instance: Adapter soft state 3373 */ 3374 static inline void 3375 megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3376 { 3377 struct megasas_cmd *cmd; 3378 struct list_head clist_local; 3379 union megasas_evt_class_locale class_locale; 3380 unsigned long flags; 3381 u32 seq_num; 3382 3383 INIT_LIST_HEAD(&clist_local); 3384 spin_lock_irqsave(&instance->hba_lock, flags); 3385 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3386 spin_unlock_irqrestore(&instance->hba_lock, flags); 3387 3388 while (!list_empty(&clist_local)) { 3389 cmd = list_entry((&clist_local)->next, 3390 struct megasas_cmd, list); 3391 list_del_init(&cmd->list); 3392 3393 if (cmd->sync_cmd || cmd->scmd) { 3394 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3395 "detected to be pending while HBA reset\n", 3396 cmd, cmd->scmd, cmd->sync_cmd); 3397 3398 cmd->retry_for_fw_reset++; 3399 3400 if (cmd->retry_for_fw_reset == 3) { 3401 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3402 "was tried multiple times during reset." 3403 "Shutting down the HBA\n", 3404 cmd, cmd->scmd, cmd->sync_cmd); 3405 instance->instancet->disable_intr(instance); 3406 atomic_set(&instance->fw_reset_no_pci_access, 1); 3407 megaraid_sas_kill_hba(instance); 3408 return; 3409 } 3410 } 3411 3412 if (cmd->sync_cmd == 1) { 3413 if (cmd->scmd) { 3414 dev_notice(&instance->pdev->dev, "unexpected" 3415 "cmd attached to internal command!\n"); 3416 } 3417 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3418 "on the internal reset queue," 3419 "issue it again.\n", cmd); 3420 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 3421 instance->instancet->fire_cmd(instance, 3422 cmd->frame_phys_addr, 3423 0, instance->reg_set); 3424 } else if (cmd->scmd) { 3425 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3426 "detected on the internal queue, issue again.\n", 3427 cmd, cmd->scmd->cmnd[0]); 3428 3429 atomic_inc(&instance->fw_outstanding); 3430 instance->instancet->fire_cmd(instance, 3431 cmd->frame_phys_addr, 3432 cmd->frame_count-1, instance->reg_set); 3433 } else { 3434 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3435 "internal reset defer list while re-issue!!\n", 3436 cmd); 3437 } 3438 } 3439 3440 if (instance->aen_cmd) { 3441 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3442 megasas_return_cmd(instance, instance->aen_cmd); 3443 3444 instance->aen_cmd = NULL; 3445 } 3446 3447 /* 3448 * Initiate AEN (Asynchronous Event Notification) 3449 */ 3450 seq_num = instance->last_seq_num; 3451 class_locale.members.reserved = 0; 3452 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3453 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3454 3455 megasas_register_aen(instance, seq_num, class_locale.word); 3456 } 3457 3458 /** 3459 * Move the internal reset pending commands to a deferred queue. 3460 * 3461 * We move the commands pending at internal reset time to a 3462 * pending queue. This queue would be flushed after successful 3463 * completion of the internal reset sequence. if the internal reset 3464 * did not complete in time, the kernel reset handler would flush 3465 * these commands. 3466 **/ 3467 static void 3468 megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3469 { 3470 struct megasas_cmd *cmd; 3471 int i; 3472 u16 max_cmd = instance->max_fw_cmds; 3473 u32 defer_index; 3474 unsigned long flags; 3475 3476 defer_index = 0; 3477 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3478 for (i = 0; i < max_cmd; i++) { 3479 cmd = instance->cmd_list[i]; 3480 if (cmd->sync_cmd == 1 || cmd->scmd) { 3481 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3482 "on the defer queue as internal\n", 3483 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3484 3485 if (!list_empty(&cmd->list)) { 3486 dev_notice(&instance->pdev->dev, "ERROR while" 3487 " moving this cmd:%p, %d %p, it was" 3488 "discovered on some list?\n", 3489 cmd, cmd->sync_cmd, cmd->scmd); 3490 3491 list_del_init(&cmd->list); 3492 } 3493 defer_index++; 3494 list_add_tail(&cmd->list, 3495 &instance->internal_reset_pending_q); 3496 } 3497 } 3498 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3499 } 3500 3501 3502 static void 3503 process_fw_state_change_wq(struct work_struct *work) 3504 { 3505 struct megasas_instance *instance = 3506 container_of(work, struct megasas_instance, work_init); 3507 u32 wait; 3508 unsigned long flags; 3509 3510 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3511 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3512 atomic_read(&instance->adprecovery)); 3513 return ; 3514 } 3515 3516 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3517 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3518 "state, restarting it...\n"); 3519 3520 instance->instancet->disable_intr(instance); 3521 atomic_set(&instance->fw_outstanding, 0); 3522 3523 atomic_set(&instance->fw_reset_no_pci_access, 1); 3524 instance->instancet->adp_reset(instance, instance->reg_set); 3525 atomic_set(&instance->fw_reset_no_pci_access, 0); 3526 3527 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3528 "initiating next stage...\n"); 3529 3530 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3531 "state 2 starting...\n"); 3532 3533 /* waiting for about 20 second before start the second init */ 3534 for (wait = 0; wait < 30; wait++) { 3535 msleep(1000); 3536 } 3537 3538 if (megasas_transition_to_ready(instance, 1)) { 3539 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3540 3541 atomic_set(&instance->fw_reset_no_pci_access, 1); 3542 megaraid_sas_kill_hba(instance); 3543 return ; 3544 } 3545 3546 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3547 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3548 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3549 ) { 3550 *instance->consumer = *instance->producer; 3551 } else { 3552 *instance->consumer = 0; 3553 *instance->producer = 0; 3554 } 3555 3556 megasas_issue_init_mfi(instance); 3557 3558 spin_lock_irqsave(&instance->hba_lock, flags); 3559 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 3560 spin_unlock_irqrestore(&instance->hba_lock, flags); 3561 instance->instancet->enable_intr(instance); 3562 3563 megasas_issue_pending_cmds_again(instance); 3564 instance->issuepend_done = 1; 3565 } 3566 } 3567 3568 /** 3569 * megasas_deplete_reply_queue - Processes all completed commands 3570 * @instance: Adapter soft state 3571 * @alt_status: Alternate status to be returned to 3572 * SCSI mid-layer instead of the status 3573 * returned by the FW 3574 * Note: this must be called with hba lock held 3575 */ 3576 static int 3577 megasas_deplete_reply_queue(struct megasas_instance *instance, 3578 u8 alt_status) 3579 { 3580 u32 mfiStatus; 3581 u32 fw_state; 3582 3583 if ((mfiStatus = instance->instancet->check_reset(instance, 3584 instance->reg_set)) == 1) { 3585 return IRQ_HANDLED; 3586 } 3587 3588 if ((mfiStatus = instance->instancet->clear_intr( 3589 instance->reg_set) 3590 ) == 0) { 3591 /* Hardware may not set outbound_intr_status in MSI-X mode */ 3592 if (!instance->msix_vectors) 3593 return IRQ_NONE; 3594 } 3595 3596 instance->mfiStatus = mfiStatus; 3597 3598 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 3599 fw_state = instance->instancet->read_fw_status_reg( 3600 instance->reg_set) & MFI_STATE_MASK; 3601 3602 if (fw_state != MFI_STATE_FAULT) { 3603 dev_notice(&instance->pdev->dev, "fw state:%x\n", 3604 fw_state); 3605 } 3606 3607 if ((fw_state == MFI_STATE_FAULT) && 3608 (instance->disableOnlineCtrlReset == 0)) { 3609 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 3610 3611 if ((instance->pdev->device == 3612 PCI_DEVICE_ID_LSI_SAS1064R) || 3613 (instance->pdev->device == 3614 PCI_DEVICE_ID_DELL_PERC5) || 3615 (instance->pdev->device == 3616 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 3617 3618 *instance->consumer = 3619 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 3620 } 3621 3622 3623 instance->instancet->disable_intr(instance); 3624 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 3625 instance->issuepend_done = 0; 3626 3627 atomic_set(&instance->fw_outstanding, 0); 3628 megasas_internal_reset_defer_cmds(instance); 3629 3630 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 3631 fw_state, atomic_read(&instance->adprecovery)); 3632 3633 schedule_work(&instance->work_init); 3634 return IRQ_HANDLED; 3635 3636 } else { 3637 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 3638 fw_state, instance->disableOnlineCtrlReset); 3639 } 3640 } 3641 3642 tasklet_schedule(&instance->isr_tasklet); 3643 return IRQ_HANDLED; 3644 } 3645 /** 3646 * megasas_isr - isr entry point 3647 */ 3648 static irqreturn_t megasas_isr(int irq, void *devp) 3649 { 3650 struct megasas_irq_context *irq_context = devp; 3651 struct megasas_instance *instance = irq_context->instance; 3652 unsigned long flags; 3653 irqreturn_t rc; 3654 3655 if (atomic_read(&instance->fw_reset_no_pci_access)) 3656 return IRQ_HANDLED; 3657 3658 spin_lock_irqsave(&instance->hba_lock, flags); 3659 rc = megasas_deplete_reply_queue(instance, DID_OK); 3660 spin_unlock_irqrestore(&instance->hba_lock, flags); 3661 3662 return rc; 3663 } 3664 3665 /** 3666 * megasas_transition_to_ready - Move the FW to READY state 3667 * @instance: Adapter soft state 3668 * 3669 * During the initialization, FW passes can potentially be in any one of 3670 * several possible states. If the FW in operational, waiting-for-handshake 3671 * states, driver must take steps to bring it to ready state. Otherwise, it 3672 * has to wait for the ready state. 3673 */ 3674 int 3675 megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 3676 { 3677 int i; 3678 u8 max_wait; 3679 u32 fw_state; 3680 u32 cur_state; 3681 u32 abs_state, curr_abs_state; 3682 3683 abs_state = instance->instancet->read_fw_status_reg(instance->reg_set); 3684 fw_state = abs_state & MFI_STATE_MASK; 3685 3686 if (fw_state != MFI_STATE_READY) 3687 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 3688 " state\n"); 3689 3690 while (fw_state != MFI_STATE_READY) { 3691 3692 switch (fw_state) { 3693 3694 case MFI_STATE_FAULT: 3695 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n"); 3696 if (ocr) { 3697 max_wait = MEGASAS_RESET_WAIT_TIME; 3698 cur_state = MFI_STATE_FAULT; 3699 break; 3700 } else 3701 return -ENODEV; 3702 3703 case MFI_STATE_WAIT_HANDSHAKE: 3704 /* 3705 * Set the CLR bit in inbound doorbell 3706 */ 3707 if ((instance->pdev->device == 3708 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 3709 (instance->pdev->device == 3710 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 3711 (instance->ctrl_context)) 3712 writel( 3713 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 3714 &instance->reg_set->doorbell); 3715 else 3716 writel( 3717 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 3718 &instance->reg_set->inbound_doorbell); 3719 3720 max_wait = MEGASAS_RESET_WAIT_TIME; 3721 cur_state = MFI_STATE_WAIT_HANDSHAKE; 3722 break; 3723 3724 case MFI_STATE_BOOT_MESSAGE_PENDING: 3725 if ((instance->pdev->device == 3726 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 3727 (instance->pdev->device == 3728 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 3729 (instance->ctrl_context)) 3730 writel(MFI_INIT_HOTPLUG, 3731 &instance->reg_set->doorbell); 3732 else 3733 writel(MFI_INIT_HOTPLUG, 3734 &instance->reg_set->inbound_doorbell); 3735 3736 max_wait = MEGASAS_RESET_WAIT_TIME; 3737 cur_state = MFI_STATE_BOOT_MESSAGE_PENDING; 3738 break; 3739 3740 case MFI_STATE_OPERATIONAL: 3741 /* 3742 * Bring it to READY state; assuming max wait 10 secs 3743 */ 3744 instance->instancet->disable_intr(instance); 3745 if ((instance->pdev->device == 3746 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 3747 (instance->pdev->device == 3748 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 3749 (instance->ctrl_context)) { 3750 writel(MFI_RESET_FLAGS, 3751 &instance->reg_set->doorbell); 3752 3753 if (instance->ctrl_context) { 3754 for (i = 0; i < (10 * 1000); i += 20) { 3755 if (readl( 3756 &instance-> 3757 reg_set-> 3758 doorbell) & 1) 3759 msleep(20); 3760 else 3761 break; 3762 } 3763 } 3764 } else 3765 writel(MFI_RESET_FLAGS, 3766 &instance->reg_set->inbound_doorbell); 3767 3768 max_wait = MEGASAS_RESET_WAIT_TIME; 3769 cur_state = MFI_STATE_OPERATIONAL; 3770 break; 3771 3772 case MFI_STATE_UNDEFINED: 3773 /* 3774 * This state should not last for more than 2 seconds 3775 */ 3776 max_wait = MEGASAS_RESET_WAIT_TIME; 3777 cur_state = MFI_STATE_UNDEFINED; 3778 break; 3779 3780 case MFI_STATE_BB_INIT: 3781 max_wait = MEGASAS_RESET_WAIT_TIME; 3782 cur_state = MFI_STATE_BB_INIT; 3783 break; 3784 3785 case MFI_STATE_FW_INIT: 3786 max_wait = MEGASAS_RESET_WAIT_TIME; 3787 cur_state = MFI_STATE_FW_INIT; 3788 break; 3789 3790 case MFI_STATE_FW_INIT_2: 3791 max_wait = MEGASAS_RESET_WAIT_TIME; 3792 cur_state = MFI_STATE_FW_INIT_2; 3793 break; 3794 3795 case MFI_STATE_DEVICE_SCAN: 3796 max_wait = MEGASAS_RESET_WAIT_TIME; 3797 cur_state = MFI_STATE_DEVICE_SCAN; 3798 break; 3799 3800 case MFI_STATE_FLUSH_CACHE: 3801 max_wait = MEGASAS_RESET_WAIT_TIME; 3802 cur_state = MFI_STATE_FLUSH_CACHE; 3803 break; 3804 3805 default: 3806 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 3807 fw_state); 3808 return -ENODEV; 3809 } 3810 3811 /* 3812 * The cur_state should not last for more than max_wait secs 3813 */ 3814 for (i = 0; i < (max_wait * 1000); i++) { 3815 curr_abs_state = instance->instancet-> 3816 read_fw_status_reg(instance->reg_set); 3817 3818 if (abs_state == curr_abs_state) { 3819 msleep(1); 3820 } else 3821 break; 3822 } 3823 3824 /* 3825 * Return error if fw_state hasn't changed after max_wait 3826 */ 3827 if (curr_abs_state == abs_state) { 3828 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 3829 "in %d secs\n", fw_state, max_wait); 3830 return -ENODEV; 3831 } 3832 3833 abs_state = curr_abs_state; 3834 fw_state = curr_abs_state & MFI_STATE_MASK; 3835 } 3836 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 3837 3838 return 0; 3839 } 3840 3841 /** 3842 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 3843 * @instance: Adapter soft state 3844 */ 3845 static void megasas_teardown_frame_pool(struct megasas_instance *instance) 3846 { 3847 int i; 3848 u16 max_cmd = instance->max_mfi_cmds; 3849 struct megasas_cmd *cmd; 3850 3851 if (!instance->frame_dma_pool) 3852 return; 3853 3854 /* 3855 * Return all frames to pool 3856 */ 3857 for (i = 0; i < max_cmd; i++) { 3858 3859 cmd = instance->cmd_list[i]; 3860 3861 if (cmd->frame) 3862 pci_pool_free(instance->frame_dma_pool, cmd->frame, 3863 cmd->frame_phys_addr); 3864 3865 if (cmd->sense) 3866 pci_pool_free(instance->sense_dma_pool, cmd->sense, 3867 cmd->sense_phys_addr); 3868 } 3869 3870 /* 3871 * Now destroy the pool itself 3872 */ 3873 pci_pool_destroy(instance->frame_dma_pool); 3874 pci_pool_destroy(instance->sense_dma_pool); 3875 3876 instance->frame_dma_pool = NULL; 3877 instance->sense_dma_pool = NULL; 3878 } 3879 3880 /** 3881 * megasas_create_frame_pool - Creates DMA pool for cmd frames 3882 * @instance: Adapter soft state 3883 * 3884 * Each command packet has an embedded DMA memory buffer that is used for 3885 * filling MFI frame and the SG list that immediately follows the frame. This 3886 * function creates those DMA memory buffers for each command packet by using 3887 * PCI pool facility. 3888 */ 3889 static int megasas_create_frame_pool(struct megasas_instance *instance) 3890 { 3891 int i; 3892 u16 max_cmd; 3893 u32 sge_sz; 3894 u32 frame_count; 3895 struct megasas_cmd *cmd; 3896 3897 max_cmd = instance->max_mfi_cmds; 3898 3899 /* 3900 * Size of our frame is 64 bytes for MFI frame, followed by max SG 3901 * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer 3902 */ 3903 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 3904 sizeof(struct megasas_sge32); 3905 3906 if (instance->flag_ieee) 3907 sge_sz = sizeof(struct megasas_sge_skinny); 3908 3909 /* 3910 * For MFI controllers. 3911 * max_num_sge = 60 3912 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 3913 * Total 960 byte (15 MFI frame of 64 byte) 3914 * 3915 * Fusion adapter require only 3 extra frame. 3916 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 3917 * max_sge_sz = 12 byte (sizeof megasas_sge64) 3918 * Total 192 byte (3 MFI frame of 64 byte) 3919 */ 3920 frame_count = instance->ctrl_context ? (3 + 1) : (15 + 1); 3921 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 3922 /* 3923 * Use DMA pool facility provided by PCI layer 3924 */ 3925 instance->frame_dma_pool = pci_pool_create("megasas frame pool", 3926 instance->pdev, instance->mfi_frame_size, 3927 256, 0); 3928 3929 if (!instance->frame_dma_pool) { 3930 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 3931 return -ENOMEM; 3932 } 3933 3934 instance->sense_dma_pool = pci_pool_create("megasas sense pool", 3935 instance->pdev, 128, 4, 0); 3936 3937 if (!instance->sense_dma_pool) { 3938 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 3939 3940 pci_pool_destroy(instance->frame_dma_pool); 3941 instance->frame_dma_pool = NULL; 3942 3943 return -ENOMEM; 3944 } 3945 3946 /* 3947 * Allocate and attach a frame to each of the commands in cmd_list. 3948 * By making cmd->index as the context instead of the &cmd, we can 3949 * always use 32bit context regardless of the architecture 3950 */ 3951 for (i = 0; i < max_cmd; i++) { 3952 3953 cmd = instance->cmd_list[i]; 3954 3955 cmd->frame = pci_pool_alloc(instance->frame_dma_pool, 3956 GFP_KERNEL, &cmd->frame_phys_addr); 3957 3958 cmd->sense = pci_pool_alloc(instance->sense_dma_pool, 3959 GFP_KERNEL, &cmd->sense_phys_addr); 3960 3961 /* 3962 * megasas_teardown_frame_pool() takes care of freeing 3963 * whatever has been allocated 3964 */ 3965 if (!cmd->frame || !cmd->sense) { 3966 dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n"); 3967 megasas_teardown_frame_pool(instance); 3968 return -ENOMEM; 3969 } 3970 3971 memset(cmd->frame, 0, instance->mfi_frame_size); 3972 cmd->frame->io.context = cpu_to_le32(cmd->index); 3973 cmd->frame->io.pad_0 = 0; 3974 if (!instance->ctrl_context && reset_devices) 3975 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 3976 } 3977 3978 return 0; 3979 } 3980 3981 /** 3982 * megasas_free_cmds - Free all the cmds in the free cmd pool 3983 * @instance: Adapter soft state 3984 */ 3985 void megasas_free_cmds(struct megasas_instance *instance) 3986 { 3987 int i; 3988 3989 /* First free the MFI frame pool */ 3990 megasas_teardown_frame_pool(instance); 3991 3992 /* Free all the commands in the cmd_list */ 3993 for (i = 0; i < instance->max_mfi_cmds; i++) 3994 3995 kfree(instance->cmd_list[i]); 3996 3997 /* Free the cmd_list buffer itself */ 3998 kfree(instance->cmd_list); 3999 instance->cmd_list = NULL; 4000 4001 INIT_LIST_HEAD(&instance->cmd_pool); 4002 } 4003 4004 /** 4005 * megasas_alloc_cmds - Allocates the command packets 4006 * @instance: Adapter soft state 4007 * 4008 * Each command that is issued to the FW, whether IO commands from the OS or 4009 * internal commands like IOCTLs, are wrapped in local data structure called 4010 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4011 * the FW. 4012 * 4013 * Each frame has a 32-bit field called context (tag). This context is used 4014 * to get back the megasas_cmd from the frame when a frame gets completed in 4015 * the ISR. Typically the address of the megasas_cmd itself would be used as 4016 * the context. But we wanted to keep the differences between 32 and 64 bit 4017 * systems to the mininum. We always use 32 bit integers for the context. In 4018 * this driver, the 32 bit values are the indices into an array cmd_list. 4019 * This array is used only to look up the megasas_cmd given the context. The 4020 * free commands themselves are maintained in a linked list called cmd_pool. 4021 */ 4022 int megasas_alloc_cmds(struct megasas_instance *instance) 4023 { 4024 int i; 4025 int j; 4026 u16 max_cmd; 4027 struct megasas_cmd *cmd; 4028 struct fusion_context *fusion; 4029 4030 fusion = instance->ctrl_context; 4031 max_cmd = instance->max_mfi_cmds; 4032 4033 /* 4034 * instance->cmd_list is an array of struct megasas_cmd pointers. 4035 * Allocate the dynamic array first and then allocate individual 4036 * commands. 4037 */ 4038 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4039 4040 if (!instance->cmd_list) { 4041 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4042 return -ENOMEM; 4043 } 4044 4045 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); 4046 4047 for (i = 0; i < max_cmd; i++) { 4048 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4049 GFP_KERNEL); 4050 4051 if (!instance->cmd_list[i]) { 4052 4053 for (j = 0; j < i; j++) 4054 kfree(instance->cmd_list[j]); 4055 4056 kfree(instance->cmd_list); 4057 instance->cmd_list = NULL; 4058 4059 return -ENOMEM; 4060 } 4061 } 4062 4063 for (i = 0; i < max_cmd; i++) { 4064 cmd = instance->cmd_list[i]; 4065 memset(cmd, 0, sizeof(struct megasas_cmd)); 4066 cmd->index = i; 4067 cmd->scmd = NULL; 4068 cmd->instance = instance; 4069 4070 list_add_tail(&cmd->list, &instance->cmd_pool); 4071 } 4072 4073 /* 4074 * Create a frame pool and assign one frame to each cmd 4075 */ 4076 if (megasas_create_frame_pool(instance)) { 4077 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4078 megasas_free_cmds(instance); 4079 } 4080 4081 return 0; 4082 } 4083 4084 /* 4085 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4086 * @instance: Adapter soft state 4087 * 4088 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4089 * or FW is not under OCR. 4090 */ 4091 inline int 4092 dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4093 4094 if (!instance->ctrl_context) 4095 return KILL_ADAPTER; 4096 else if (instance->unload || 4097 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) 4098 return IGNORE_TIMEOUT; 4099 else 4100 return INITIATE_OCR; 4101 } 4102 4103 static void 4104 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4105 { 4106 int ret; 4107 struct megasas_cmd *cmd; 4108 struct megasas_dcmd_frame *dcmd; 4109 4110 struct MR_PRIV_DEVICE *mr_device_priv_data; 4111 u16 device_id = 0; 4112 4113 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4114 cmd = megasas_get_cmd(instance); 4115 4116 if (!cmd) { 4117 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4118 return; 4119 } 4120 4121 dcmd = &cmd->frame->dcmd; 4122 4123 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4124 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4125 4126 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4127 dcmd->cmd = MFI_CMD_DCMD; 4128 dcmd->cmd_status = 0xFF; 4129 dcmd->sge_count = 1; 4130 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 4131 dcmd->timeout = 0; 4132 dcmd->pad_0 = 0; 4133 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4134 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4135 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->pd_info_h); 4136 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4137 4138 if (instance->ctrl_context && !instance->mask_interrupts) 4139 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4140 else 4141 ret = megasas_issue_polled(instance, cmd); 4142 4143 switch (ret) { 4144 case DCMD_SUCCESS: 4145 mr_device_priv_data = sdev->hostdata; 4146 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4147 mr_device_priv_data->interface_type = 4148 instance->pd_info->state.ddf.pdType.intf; 4149 break; 4150 4151 case DCMD_TIMEOUT: 4152 4153 switch (dcmd_timeout_ocr_possible(instance)) { 4154 case INITIATE_OCR: 4155 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4156 megasas_reset_fusion(instance->host, 4157 MFI_IO_TIMEOUT_OCR); 4158 break; 4159 case KILL_ADAPTER: 4160 megaraid_sas_kill_hba(instance); 4161 break; 4162 case IGNORE_TIMEOUT: 4163 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4164 __func__, __LINE__); 4165 break; 4166 } 4167 4168 break; 4169 } 4170 4171 if (ret != DCMD_TIMEOUT) 4172 megasas_return_cmd(instance, cmd); 4173 4174 return; 4175 } 4176 /* 4177 * megasas_get_pd_list_info - Returns FW's pd_list structure 4178 * @instance: Adapter soft state 4179 * @pd_list: pd_list structure 4180 * 4181 * Issues an internal command (DCMD) to get the FW's controller PD 4182 * list structure. This information is mainly used to find out SYSTEM 4183 * supported by the FW. 4184 */ 4185 static int 4186 megasas_get_pd_list(struct megasas_instance *instance) 4187 { 4188 int ret = 0, pd_index = 0; 4189 struct megasas_cmd *cmd; 4190 struct megasas_dcmd_frame *dcmd; 4191 struct MR_PD_LIST *ci; 4192 struct MR_PD_ADDRESS *pd_addr; 4193 dma_addr_t ci_h = 0; 4194 4195 if (instance->pd_list_not_supported) { 4196 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4197 "not supported by firmware\n"); 4198 return ret; 4199 } 4200 4201 cmd = megasas_get_cmd(instance); 4202 4203 if (!cmd) { 4204 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4205 return -ENOMEM; 4206 } 4207 4208 dcmd = &cmd->frame->dcmd; 4209 4210 ci = pci_alloc_consistent(instance->pdev, 4211 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h); 4212 4213 if (!ci) { 4214 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n"); 4215 megasas_return_cmd(instance, cmd); 4216 return -ENOMEM; 4217 } 4218 4219 memset(ci, 0, sizeof(*ci)); 4220 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4221 4222 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4223 dcmd->mbox.b[1] = 0; 4224 dcmd->cmd = MFI_CMD_DCMD; 4225 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4226 dcmd->sge_count = 1; 4227 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 4228 dcmd->timeout = 0; 4229 dcmd->pad_0 = 0; 4230 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4231 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4232 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); 4233 dcmd->sgl.sge32[0].length = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4234 4235 if (instance->ctrl_context && !instance->mask_interrupts) 4236 ret = megasas_issue_blocked_cmd(instance, cmd, 4237 MFI_IO_TIMEOUT_SECS); 4238 else 4239 ret = megasas_issue_polled(instance, cmd); 4240 4241 switch (ret) { 4242 case DCMD_FAILED: 4243 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4244 "failed/not supported by firmware\n"); 4245 4246 if (instance->ctrl_context) 4247 megaraid_sas_kill_hba(instance); 4248 else 4249 instance->pd_list_not_supported = 1; 4250 break; 4251 case DCMD_TIMEOUT: 4252 4253 switch (dcmd_timeout_ocr_possible(instance)) { 4254 case INITIATE_OCR: 4255 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4256 /* 4257 * DCMD failed from AEN path. 4258 * AEN path already hold reset_mutex to avoid PCI access 4259 * while OCR is in progress. 4260 */ 4261 mutex_unlock(&instance->reset_mutex); 4262 megasas_reset_fusion(instance->host, 4263 MFI_IO_TIMEOUT_OCR); 4264 mutex_lock(&instance->reset_mutex); 4265 break; 4266 case KILL_ADAPTER: 4267 megaraid_sas_kill_hba(instance); 4268 break; 4269 case IGNORE_TIMEOUT: 4270 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4271 __func__, __LINE__); 4272 break; 4273 } 4274 4275 break; 4276 4277 case DCMD_SUCCESS: 4278 pd_addr = ci->addr; 4279 4280 if ((le32_to_cpu(ci->count) > 4281 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4282 break; 4283 4284 memset(instance->local_pd_list, 0, 4285 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4286 4287 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4288 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4289 le16_to_cpu(pd_addr->deviceId); 4290 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4291 pd_addr->scsiDevType; 4292 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4293 MR_PD_STATE_SYSTEM; 4294 pd_addr++; 4295 } 4296 4297 memcpy(instance->pd_list, instance->local_pd_list, 4298 sizeof(instance->pd_list)); 4299 break; 4300 4301 } 4302 4303 pci_free_consistent(instance->pdev, 4304 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 4305 ci, ci_h); 4306 4307 if (ret != DCMD_TIMEOUT) 4308 megasas_return_cmd(instance, cmd); 4309 4310 return ret; 4311 } 4312 4313 /* 4314 * megasas_get_ld_list_info - Returns FW's ld_list structure 4315 * @instance: Adapter soft state 4316 * @ld_list: ld_list structure 4317 * 4318 * Issues an internal command (DCMD) to get the FW's controller PD 4319 * list structure. This information is mainly used to find out SYSTEM 4320 * supported by the FW. 4321 */ 4322 static int 4323 megasas_get_ld_list(struct megasas_instance *instance) 4324 { 4325 int ret = 0, ld_index = 0, ids = 0; 4326 struct megasas_cmd *cmd; 4327 struct megasas_dcmd_frame *dcmd; 4328 struct MR_LD_LIST *ci; 4329 dma_addr_t ci_h = 0; 4330 u32 ld_count; 4331 4332 cmd = megasas_get_cmd(instance); 4333 4334 if (!cmd) { 4335 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4336 return -ENOMEM; 4337 } 4338 4339 dcmd = &cmd->frame->dcmd; 4340 4341 ci = pci_alloc_consistent(instance->pdev, 4342 sizeof(struct MR_LD_LIST), 4343 &ci_h); 4344 4345 if (!ci) { 4346 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n"); 4347 megasas_return_cmd(instance, cmd); 4348 return -ENOMEM; 4349 } 4350 4351 memset(ci, 0, sizeof(*ci)); 4352 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4353 4354 if (instance->supportmax256vd) 4355 dcmd->mbox.b[0] = 1; 4356 dcmd->cmd = MFI_CMD_DCMD; 4357 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4358 dcmd->sge_count = 1; 4359 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 4360 dcmd->timeout = 0; 4361 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4362 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4363 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); 4364 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4365 dcmd->pad_0 = 0; 4366 4367 if (instance->ctrl_context && !instance->mask_interrupts) 4368 ret = megasas_issue_blocked_cmd(instance, cmd, 4369 MFI_IO_TIMEOUT_SECS); 4370 else 4371 ret = megasas_issue_polled(instance, cmd); 4372 4373 ld_count = le32_to_cpu(ci->ldCount); 4374 4375 switch (ret) { 4376 case DCMD_FAILED: 4377 megaraid_sas_kill_hba(instance); 4378 break; 4379 case DCMD_TIMEOUT: 4380 4381 switch (dcmd_timeout_ocr_possible(instance)) { 4382 case INITIATE_OCR: 4383 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4384 /* 4385 * DCMD failed from AEN path. 4386 * AEN path already hold reset_mutex to avoid PCI access 4387 * while OCR is in progress. 4388 */ 4389 mutex_unlock(&instance->reset_mutex); 4390 megasas_reset_fusion(instance->host, 4391 MFI_IO_TIMEOUT_OCR); 4392 mutex_lock(&instance->reset_mutex); 4393 break; 4394 case KILL_ADAPTER: 4395 megaraid_sas_kill_hba(instance); 4396 break; 4397 case IGNORE_TIMEOUT: 4398 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4399 __func__, __LINE__); 4400 break; 4401 } 4402 4403 break; 4404 4405 case DCMD_SUCCESS: 4406 if (ld_count > instance->fw_supported_vd_count) 4407 break; 4408 4409 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4410 4411 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4412 if (ci->ldList[ld_index].state != 0) { 4413 ids = ci->ldList[ld_index].ref.targetId; 4414 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4415 } 4416 } 4417 4418 break; 4419 } 4420 4421 pci_free_consistent(instance->pdev, sizeof(struct MR_LD_LIST), ci, ci_h); 4422 4423 if (ret != DCMD_TIMEOUT) 4424 megasas_return_cmd(instance, cmd); 4425 4426 return ret; 4427 } 4428 4429 /** 4430 * megasas_ld_list_query - Returns FW's ld_list structure 4431 * @instance: Adapter soft state 4432 * @ld_list: ld_list structure 4433 * 4434 * Issues an internal command (DCMD) to get the FW's controller PD 4435 * list structure. This information is mainly used to find out SYSTEM 4436 * supported by the FW. 4437 */ 4438 static int 4439 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4440 { 4441 int ret = 0, ld_index = 0, ids = 0; 4442 struct megasas_cmd *cmd; 4443 struct megasas_dcmd_frame *dcmd; 4444 struct MR_LD_TARGETID_LIST *ci; 4445 dma_addr_t ci_h = 0; 4446 u32 tgtid_count; 4447 4448 cmd = megasas_get_cmd(instance); 4449 4450 if (!cmd) { 4451 dev_warn(&instance->pdev->dev, 4452 "megasas_ld_list_query: Failed to get cmd\n"); 4453 return -ENOMEM; 4454 } 4455 4456 dcmd = &cmd->frame->dcmd; 4457 4458 ci = pci_alloc_consistent(instance->pdev, 4459 sizeof(struct MR_LD_TARGETID_LIST), &ci_h); 4460 4461 if (!ci) { 4462 dev_warn(&instance->pdev->dev, 4463 "Failed to alloc mem for ld_list_query\n"); 4464 megasas_return_cmd(instance, cmd); 4465 return -ENOMEM; 4466 } 4467 4468 memset(ci, 0, sizeof(*ci)); 4469 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4470 4471 dcmd->mbox.b[0] = query_type; 4472 if (instance->supportmax256vd) 4473 dcmd->mbox.b[2] = 1; 4474 4475 dcmd->cmd = MFI_CMD_DCMD; 4476 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4477 dcmd->sge_count = 1; 4478 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 4479 dcmd->timeout = 0; 4480 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4481 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4482 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); 4483 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4484 dcmd->pad_0 = 0; 4485 4486 if (instance->ctrl_context && !instance->mask_interrupts) 4487 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4488 else 4489 ret = megasas_issue_polled(instance, cmd); 4490 4491 switch (ret) { 4492 case DCMD_FAILED: 4493 dev_info(&instance->pdev->dev, 4494 "DCMD not supported by firmware - %s %d\n", 4495 __func__, __LINE__); 4496 ret = megasas_get_ld_list(instance); 4497 break; 4498 case DCMD_TIMEOUT: 4499 switch (dcmd_timeout_ocr_possible(instance)) { 4500 case INITIATE_OCR: 4501 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4502 /* 4503 * DCMD failed from AEN path. 4504 * AEN path already hold reset_mutex to avoid PCI access 4505 * while OCR is in progress. 4506 */ 4507 mutex_unlock(&instance->reset_mutex); 4508 megasas_reset_fusion(instance->host, 4509 MFI_IO_TIMEOUT_OCR); 4510 mutex_lock(&instance->reset_mutex); 4511 break; 4512 case KILL_ADAPTER: 4513 megaraid_sas_kill_hba(instance); 4514 break; 4515 case IGNORE_TIMEOUT: 4516 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4517 __func__, __LINE__); 4518 break; 4519 } 4520 4521 break; 4522 case DCMD_SUCCESS: 4523 tgtid_count = le32_to_cpu(ci->count); 4524 4525 if ((tgtid_count > (instance->fw_supported_vd_count))) 4526 break; 4527 4528 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4529 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4530 ids = ci->targetId[ld_index]; 4531 instance->ld_ids[ids] = ci->targetId[ld_index]; 4532 } 4533 4534 break; 4535 } 4536 4537 pci_free_consistent(instance->pdev, sizeof(struct MR_LD_TARGETID_LIST), 4538 ci, ci_h); 4539 4540 if (ret != DCMD_TIMEOUT) 4541 megasas_return_cmd(instance, cmd); 4542 4543 return ret; 4544 } 4545 4546 /* 4547 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 4548 * instance : Controller's instance 4549 */ 4550 static void megasas_update_ext_vd_details(struct megasas_instance *instance) 4551 { 4552 struct fusion_context *fusion; 4553 u32 ventura_map_sz = 0; 4554 4555 fusion = instance->ctrl_context; 4556 /* For MFI based controllers return dummy success */ 4557 if (!fusion) 4558 return; 4559 4560 instance->supportmax256vd = 4561 instance->ctrl_info->adapterOperations3.supportMaxExtLDs; 4562 /* Below is additional check to address future FW enhancement */ 4563 if (instance->ctrl_info->max_lds > 64) 4564 instance->supportmax256vd = 1; 4565 4566 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 4567 * MEGASAS_MAX_DEV_PER_CHANNEL; 4568 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 4569 * MEGASAS_MAX_DEV_PER_CHANNEL; 4570 if (instance->supportmax256vd) { 4571 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 4572 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 4573 } else { 4574 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 4575 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 4576 } 4577 4578 dev_info(&instance->pdev->dev, 4579 "firmware type\t: %s\n", 4580 instance->supportmax256vd ? "Extended VD(240 VD)firmware" : 4581 "Legacy(64 VD) firmware"); 4582 4583 if (instance->max_raid_mapsize) { 4584 ventura_map_sz = instance->max_raid_mapsize * 4585 MR_MIN_MAP_SIZE; /* 64k */ 4586 fusion->current_map_sz = ventura_map_sz; 4587 fusion->max_map_sz = ventura_map_sz; 4588 } else { 4589 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + 4590 (sizeof(struct MR_LD_SPAN_MAP) * 4591 (instance->fw_supported_vd_count - 1)); 4592 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 4593 4594 fusion->max_map_sz = 4595 max(fusion->old_map_sz, fusion->new_map_sz); 4596 4597 if (instance->supportmax256vd) 4598 fusion->current_map_sz = fusion->new_map_sz; 4599 else 4600 fusion->current_map_sz = fusion->old_map_sz; 4601 } 4602 /* irrespective of FW raid maps, driver raid map is constant */ 4603 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 4604 } 4605 4606 /** 4607 * megasas_get_controller_info - Returns FW's controller structure 4608 * @instance: Adapter soft state 4609 * 4610 * Issues an internal command (DCMD) to get the FW's controller structure. 4611 * This information is mainly used to find out the maximum IO transfer per 4612 * command supported by the FW. 4613 */ 4614 int 4615 megasas_get_ctrl_info(struct megasas_instance *instance) 4616 { 4617 int ret = 0; 4618 struct megasas_cmd *cmd; 4619 struct megasas_dcmd_frame *dcmd; 4620 struct megasas_ctrl_info *ci; 4621 struct megasas_ctrl_info *ctrl_info; 4622 dma_addr_t ci_h = 0; 4623 4624 ctrl_info = instance->ctrl_info; 4625 4626 cmd = megasas_get_cmd(instance); 4627 4628 if (!cmd) { 4629 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 4630 return -ENOMEM; 4631 } 4632 4633 dcmd = &cmd->frame->dcmd; 4634 4635 ci = pci_alloc_consistent(instance->pdev, 4636 sizeof(struct megasas_ctrl_info), &ci_h); 4637 4638 if (!ci) { 4639 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n"); 4640 megasas_return_cmd(instance, cmd); 4641 return -ENOMEM; 4642 } 4643 4644 memset(ci, 0, sizeof(*ci)); 4645 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4646 4647 dcmd->cmd = MFI_CMD_DCMD; 4648 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4649 dcmd->sge_count = 1; 4650 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 4651 dcmd->timeout = 0; 4652 dcmd->pad_0 = 0; 4653 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 4654 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 4655 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); 4656 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 4657 dcmd->mbox.b[0] = 1; 4658 4659 if (instance->ctrl_context && !instance->mask_interrupts) 4660 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4661 else 4662 ret = megasas_issue_polled(instance, cmd); 4663 4664 switch (ret) { 4665 case DCMD_SUCCESS: 4666 memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info)); 4667 /* Save required controller information in 4668 * CPU endianness format. 4669 */ 4670 le32_to_cpus((u32 *)&ctrl_info->properties.OnOffProperties); 4671 le32_to_cpus((u32 *)&ctrl_info->adapterOperations2); 4672 le32_to_cpus((u32 *)&ctrl_info->adapterOperations3); 4673 le16_to_cpus((u16 *)&ctrl_info->adapter_operations4); 4674 4675 /* Update the latest Ext VD info. 4676 * From Init path, store current firmware details. 4677 * From OCR path, detect any firmware properties changes. 4678 * in case of Firmware upgrade without system reboot. 4679 */ 4680 megasas_update_ext_vd_details(instance); 4681 instance->use_seqnum_jbod_fp = 4682 ctrl_info->adapterOperations3.useSeqNumJbodFP; 4683 instance->support_morethan256jbod = 4684 ctrl_info->adapter_operations4.support_pd_map_target_id; 4685 4686 /*Check whether controller is iMR or MR */ 4687 instance->is_imr = (ctrl_info->memory_size ? 0 : 1); 4688 dev_info(&instance->pdev->dev, 4689 "controller type\t: %s(%dMB)\n", 4690 instance->is_imr ? "iMR" : "MR", 4691 le16_to_cpu(ctrl_info->memory_size)); 4692 4693 instance->disableOnlineCtrlReset = 4694 ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; 4695 instance->secure_jbod_support = 4696 ctrl_info->adapterOperations3.supportSecurityonJBOD; 4697 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 4698 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 4699 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 4700 instance->secure_jbod_support ? "Yes" : "No"); 4701 break; 4702 4703 case DCMD_TIMEOUT: 4704 switch (dcmd_timeout_ocr_possible(instance)) { 4705 case INITIATE_OCR: 4706 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4707 megasas_reset_fusion(instance->host, 4708 MFI_IO_TIMEOUT_OCR); 4709 break; 4710 case KILL_ADAPTER: 4711 megaraid_sas_kill_hba(instance); 4712 break; 4713 case IGNORE_TIMEOUT: 4714 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4715 __func__, __LINE__); 4716 break; 4717 } 4718 case DCMD_FAILED: 4719 megaraid_sas_kill_hba(instance); 4720 break; 4721 4722 } 4723 4724 pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info), 4725 ci, ci_h); 4726 4727 megasas_return_cmd(instance, cmd); 4728 4729 4730 return ret; 4731 } 4732 4733 /* 4734 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 4735 * to firmware 4736 * 4737 * @instance: Adapter soft state 4738 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 4739 MR_CRASH_BUF_TURN_OFF = 0 4740 MR_CRASH_BUF_TURN_ON = 1 4741 * @return 0 on success non-zero on failure. 4742 * Issues an internal command (DCMD) to set parameters for crash dump feature. 4743 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 4744 * that driver supports crash dump feature. This DCMD will be sent only if 4745 * crash dump feature is supported by the FW. 4746 * 4747 */ 4748 int megasas_set_crash_dump_params(struct megasas_instance *instance, 4749 u8 crash_buf_state) 4750 { 4751 int ret = 0; 4752 struct megasas_cmd *cmd; 4753 struct megasas_dcmd_frame *dcmd; 4754 4755 cmd = megasas_get_cmd(instance); 4756 4757 if (!cmd) { 4758 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 4759 return -ENOMEM; 4760 } 4761 4762 4763 dcmd = &cmd->frame->dcmd; 4764 4765 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4766 dcmd->mbox.b[0] = crash_buf_state; 4767 dcmd->cmd = MFI_CMD_DCMD; 4768 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4769 dcmd->sge_count = 1; 4770 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 4771 dcmd->timeout = 0; 4772 dcmd->pad_0 = 0; 4773 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 4774 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 4775 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->crash_dump_h); 4776 dcmd->sgl.sge32[0].length = cpu_to_le32(CRASH_DMA_BUF_SIZE); 4777 4778 if (instance->ctrl_context && !instance->mask_interrupts) 4779 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4780 else 4781 ret = megasas_issue_polled(instance, cmd); 4782 4783 if (ret == DCMD_TIMEOUT) { 4784 switch (dcmd_timeout_ocr_possible(instance)) { 4785 case INITIATE_OCR: 4786 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4787 megasas_reset_fusion(instance->host, 4788 MFI_IO_TIMEOUT_OCR); 4789 break; 4790 case KILL_ADAPTER: 4791 megaraid_sas_kill_hba(instance); 4792 break; 4793 case IGNORE_TIMEOUT: 4794 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4795 __func__, __LINE__); 4796 break; 4797 } 4798 } else 4799 megasas_return_cmd(instance, cmd); 4800 4801 return ret; 4802 } 4803 4804 /** 4805 * megasas_issue_init_mfi - Initializes the FW 4806 * @instance: Adapter soft state 4807 * 4808 * Issues the INIT MFI cmd 4809 */ 4810 static int 4811 megasas_issue_init_mfi(struct megasas_instance *instance) 4812 { 4813 __le32 context; 4814 struct megasas_cmd *cmd; 4815 struct megasas_init_frame *init_frame; 4816 struct megasas_init_queue_info *initq_info; 4817 dma_addr_t init_frame_h; 4818 dma_addr_t initq_info_h; 4819 4820 /* 4821 * Prepare a init frame. Note the init frame points to queue info 4822 * structure. Each frame has SGL allocated after first 64 bytes. For 4823 * this frame - since we don't need any SGL - we use SGL's space as 4824 * queue info structure 4825 * 4826 * We will not get a NULL command below. We just created the pool. 4827 */ 4828 cmd = megasas_get_cmd(instance); 4829 4830 init_frame = (struct megasas_init_frame *)cmd->frame; 4831 initq_info = (struct megasas_init_queue_info *) 4832 ((unsigned long)init_frame + 64); 4833 4834 init_frame_h = cmd->frame_phys_addr; 4835 initq_info_h = init_frame_h + 64; 4836 4837 context = init_frame->context; 4838 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 4839 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 4840 init_frame->context = context; 4841 4842 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 4843 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 4844 4845 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 4846 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 4847 4848 init_frame->cmd = MFI_CMD_INIT; 4849 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 4850 init_frame->queue_info_new_phys_addr_lo = 4851 cpu_to_le32(lower_32_bits(initq_info_h)); 4852 init_frame->queue_info_new_phys_addr_hi = 4853 cpu_to_le32(upper_32_bits(initq_info_h)); 4854 4855 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 4856 4857 /* 4858 * disable the intr before firing the init frame to FW 4859 */ 4860 instance->instancet->disable_intr(instance); 4861 4862 /* 4863 * Issue the init frame in polled mode 4864 */ 4865 4866 if (megasas_issue_polled(instance, cmd)) { 4867 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 4868 megasas_return_cmd(instance, cmd); 4869 goto fail_fw_init; 4870 } 4871 4872 megasas_return_cmd(instance, cmd); 4873 4874 return 0; 4875 4876 fail_fw_init: 4877 return -EINVAL; 4878 } 4879 4880 static u32 4881 megasas_init_adapter_mfi(struct megasas_instance *instance) 4882 { 4883 struct megasas_register_set __iomem *reg_set; 4884 u32 context_sz; 4885 u32 reply_q_sz; 4886 4887 reg_set = instance->reg_set; 4888 4889 /* 4890 * Get various operational parameters from status register 4891 */ 4892 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF; 4893 /* 4894 * Reduce the max supported cmds by 1. This is to ensure that the 4895 * reply_q_sz (1 more than the max cmd that driver may send) 4896 * does not exceed max cmds that the FW can support 4897 */ 4898 instance->max_fw_cmds = instance->max_fw_cmds-1; 4899 instance->max_mfi_cmds = instance->max_fw_cmds; 4900 instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >> 4901 0x10; 4902 /* 4903 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 4904 * are reserved for IOCTL + driver's internal DCMDs. 4905 */ 4906 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4907 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 4908 instance->max_scsi_cmds = (instance->max_fw_cmds - 4909 MEGASAS_SKINNY_INT_CMDS); 4910 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 4911 } else { 4912 instance->max_scsi_cmds = (instance->max_fw_cmds - 4913 MEGASAS_INT_CMDS); 4914 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 4915 } 4916 4917 instance->cur_can_queue = instance->max_scsi_cmds; 4918 /* 4919 * Create a pool of commands 4920 */ 4921 if (megasas_alloc_cmds(instance)) 4922 goto fail_alloc_cmds; 4923 4924 /* 4925 * Allocate memory for reply queue. Length of reply queue should 4926 * be _one_ more than the maximum commands handled by the firmware. 4927 * 4928 * Note: When FW completes commands, it places corresponding contex 4929 * values in this circular reply queue. This circular queue is a fairly 4930 * typical producer-consumer queue. FW is the producer (of completed 4931 * commands) and the driver is the consumer. 4932 */ 4933 context_sz = sizeof(u32); 4934 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 4935 4936 instance->reply_queue = pci_alloc_consistent(instance->pdev, 4937 reply_q_sz, 4938 &instance->reply_queue_h); 4939 4940 if (!instance->reply_queue) { 4941 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 4942 goto fail_reply_queue; 4943 } 4944 4945 if (megasas_issue_init_mfi(instance)) 4946 goto fail_fw_init; 4947 4948 if (megasas_get_ctrl_info(instance)) { 4949 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 4950 "Fail from %s %d\n", instance->unique_id, 4951 __func__, __LINE__); 4952 goto fail_fw_init; 4953 } 4954 4955 instance->fw_support_ieee = 0; 4956 instance->fw_support_ieee = 4957 (instance->instancet->read_fw_status_reg(reg_set) & 4958 0x04000000); 4959 4960 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 4961 instance->fw_support_ieee); 4962 4963 if (instance->fw_support_ieee) 4964 instance->flag_ieee = 1; 4965 4966 return 0; 4967 4968 fail_fw_init: 4969 4970 pci_free_consistent(instance->pdev, reply_q_sz, 4971 instance->reply_queue, instance->reply_queue_h); 4972 fail_reply_queue: 4973 megasas_free_cmds(instance); 4974 4975 fail_alloc_cmds: 4976 return 1; 4977 } 4978 4979 /* 4980 * megasas_setup_irqs_ioapic - register legacy interrupts. 4981 * @instance: Adapter soft state 4982 * 4983 * Do not enable interrupt, only setup ISRs. 4984 * 4985 * Return 0 on success. 4986 */ 4987 static int 4988 megasas_setup_irqs_ioapic(struct megasas_instance *instance) 4989 { 4990 struct pci_dev *pdev; 4991 4992 pdev = instance->pdev; 4993 instance->irq_context[0].instance = instance; 4994 instance->irq_context[0].MSIxIndex = 0; 4995 if (request_irq(pci_irq_vector(pdev, 0), 4996 instance->instancet->service_isr, IRQF_SHARED, 4997 "megasas", &instance->irq_context[0])) { 4998 dev_err(&instance->pdev->dev, 4999 "Failed to register IRQ from %s %d\n", 5000 __func__, __LINE__); 5001 return -1; 5002 } 5003 return 0; 5004 } 5005 5006 /** 5007 * megasas_setup_irqs_msix - register MSI-x interrupts. 5008 * @instance: Adapter soft state 5009 * @is_probe: Driver probe check 5010 * 5011 * Do not enable interrupt, only setup ISRs. 5012 * 5013 * Return 0 on success. 5014 */ 5015 static int 5016 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5017 { 5018 int i, j; 5019 struct pci_dev *pdev; 5020 5021 pdev = instance->pdev; 5022 5023 /* Try MSI-x */ 5024 for (i = 0; i < instance->msix_vectors; i++) { 5025 instance->irq_context[i].instance = instance; 5026 instance->irq_context[i].MSIxIndex = i; 5027 if (request_irq(pci_irq_vector(pdev, i), 5028 instance->instancet->service_isr, 0, "megasas", 5029 &instance->irq_context[i])) { 5030 dev_err(&instance->pdev->dev, 5031 "Failed to register IRQ for vector %d.\n", i); 5032 for (j = 0; j < i; j++) 5033 free_irq(pci_irq_vector(pdev, j), 5034 &instance->irq_context[j]); 5035 /* Retry irq register for IO_APIC*/ 5036 instance->msix_vectors = 0; 5037 if (is_probe) 5038 return megasas_setup_irqs_ioapic(instance); 5039 else 5040 return -1; 5041 } 5042 } 5043 return 0; 5044 } 5045 5046 /* 5047 * megasas_destroy_irqs- unregister interrupts. 5048 * @instance: Adapter soft state 5049 * return: void 5050 */ 5051 static void 5052 megasas_destroy_irqs(struct megasas_instance *instance) { 5053 5054 int i; 5055 5056 if (instance->msix_vectors) 5057 for (i = 0; i < instance->msix_vectors; i++) { 5058 free_irq(pci_irq_vector(instance->pdev, i), 5059 &instance->irq_context[i]); 5060 } 5061 else 5062 free_irq(pci_irq_vector(instance->pdev, 0), 5063 &instance->irq_context[0]); 5064 } 5065 5066 /** 5067 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5068 * @instance: Adapter soft state 5069 * @is_probe: Driver probe check 5070 * 5071 * Return 0 on success. 5072 */ 5073 void 5074 megasas_setup_jbod_map(struct megasas_instance *instance) 5075 { 5076 int i; 5077 struct fusion_context *fusion = instance->ctrl_context; 5078 u32 pd_seq_map_sz; 5079 5080 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 5081 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); 5082 5083 if (reset_devices || !fusion || 5084 !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) { 5085 dev_info(&instance->pdev->dev, 5086 "Jbod map is not supported %s %d\n", 5087 __func__, __LINE__); 5088 instance->use_seqnum_jbod_fp = false; 5089 return; 5090 } 5091 5092 if (fusion->pd_seq_sync[0]) 5093 goto skip_alloc; 5094 5095 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5096 fusion->pd_seq_sync[i] = dma_alloc_coherent 5097 (&instance->pdev->dev, pd_seq_map_sz, 5098 &fusion->pd_seq_phys[i], GFP_KERNEL); 5099 if (!fusion->pd_seq_sync[i]) { 5100 dev_err(&instance->pdev->dev, 5101 "Failed to allocate memory from %s %d\n", 5102 __func__, __LINE__); 5103 if (i == 1) { 5104 dma_free_coherent(&instance->pdev->dev, 5105 pd_seq_map_sz, fusion->pd_seq_sync[0], 5106 fusion->pd_seq_phys[0]); 5107 fusion->pd_seq_sync[0] = NULL; 5108 } 5109 instance->use_seqnum_jbod_fp = false; 5110 return; 5111 } 5112 } 5113 5114 skip_alloc: 5115 if (!megasas_sync_pd_seq_num(instance, false) && 5116 !megasas_sync_pd_seq_num(instance, true)) 5117 instance->use_seqnum_jbod_fp = true; 5118 else 5119 instance->use_seqnum_jbod_fp = false; 5120 } 5121 5122 /** 5123 * megasas_init_fw - Initializes the FW 5124 * @instance: Adapter soft state 5125 * 5126 * This is the main function for initializing firmware 5127 */ 5128 5129 static int megasas_init_fw(struct megasas_instance *instance) 5130 { 5131 u32 max_sectors_1; 5132 u32 max_sectors_2, tmp_sectors, msix_enable; 5133 u32 scratch_pad_2, scratch_pad_3, scratch_pad_4; 5134 resource_size_t base_addr; 5135 struct megasas_register_set __iomem *reg_set; 5136 struct megasas_ctrl_info *ctrl_info = NULL; 5137 unsigned long bar_list; 5138 int i, j, loop, fw_msix_count = 0; 5139 struct IOV_111 *iovPtr; 5140 struct fusion_context *fusion; 5141 5142 fusion = instance->ctrl_context; 5143 5144 /* Find first memory bar */ 5145 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 5146 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 5147 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 5148 "megasas: LSI")) { 5149 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 5150 return -EBUSY; 5151 } 5152 5153 base_addr = pci_resource_start(instance->pdev, instance->bar); 5154 instance->reg_set = ioremap_nocache(base_addr, 8192); 5155 5156 if (!instance->reg_set) { 5157 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 5158 goto fail_ioremap; 5159 } 5160 5161 reg_set = instance->reg_set; 5162 5163 if (fusion) 5164 instance->instancet = &megasas_instance_template_fusion; 5165 else { 5166 switch (instance->pdev->device) { 5167 case PCI_DEVICE_ID_LSI_SAS1078R: 5168 case PCI_DEVICE_ID_LSI_SAS1078DE: 5169 instance->instancet = &megasas_instance_template_ppc; 5170 break; 5171 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 5172 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 5173 instance->instancet = &megasas_instance_template_gen2; 5174 break; 5175 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 5176 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 5177 instance->instancet = &megasas_instance_template_skinny; 5178 break; 5179 case PCI_DEVICE_ID_LSI_SAS1064R: 5180 case PCI_DEVICE_ID_DELL_PERC5: 5181 default: 5182 instance->instancet = &megasas_instance_template_xscale; 5183 instance->pd_list_not_supported = 1; 5184 break; 5185 } 5186 } 5187 5188 if (megasas_transition_to_ready(instance, 0)) { 5189 atomic_set(&instance->fw_reset_no_pci_access, 1); 5190 instance->instancet->adp_reset 5191 (instance, instance->reg_set); 5192 atomic_set(&instance->fw_reset_no_pci_access, 0); 5193 dev_info(&instance->pdev->dev, 5194 "FW restarted successfully from %s!\n", 5195 __func__); 5196 5197 /*waitting for about 30 second before retry*/ 5198 ssleep(30); 5199 5200 if (megasas_transition_to_ready(instance, 0)) 5201 goto fail_ready_state; 5202 } 5203 5204 if (instance->is_ventura) { 5205 scratch_pad_3 = 5206 readl(&instance->reg_set->outbound_scratch_pad_3); 5207 instance->max_raid_mapsize = ((scratch_pad_3 >> 5208 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 5209 MR_MAX_RAID_MAP_SIZE_MASK); 5210 } 5211 5212 /* Check if MSI-X is supported while in ready state */ 5213 msix_enable = (instance->instancet->read_fw_status_reg(reg_set) & 5214 0x4000000) >> 0x1a; 5215 if (msix_enable && !msix_disable) { 5216 int irq_flags = PCI_IRQ_MSIX; 5217 5218 scratch_pad_2 = readl 5219 (&instance->reg_set->outbound_scratch_pad_2); 5220 /* Check max MSI-X vectors */ 5221 if (fusion) { 5222 if (fusion->adapter_type == THUNDERBOLT_SERIES) { /* Thunderbolt Series*/ 5223 instance->msix_vectors = (scratch_pad_2 5224 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 5225 fw_msix_count = instance->msix_vectors; 5226 } else { /* Invader series supports more than 8 MSI-x vectors*/ 5227 instance->msix_vectors = ((scratch_pad_2 5228 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 5229 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 5230 if (instance->msix_vectors > 16) 5231 instance->msix_combined = true; 5232 5233 if (rdpq_enable) 5234 instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? 5235 1 : 0; 5236 fw_msix_count = instance->msix_vectors; 5237 /* Save 1-15 reply post index address to local memory 5238 * Index 0 is already saved from reg offset 5239 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 5240 */ 5241 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 5242 instance->reply_post_host_index_addr[loop] = 5243 (u32 __iomem *) 5244 ((u8 __iomem *)instance->reg_set + 5245 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 5246 + (loop * 0x10)); 5247 } 5248 } 5249 if (msix_vectors) 5250 instance->msix_vectors = min(msix_vectors, 5251 instance->msix_vectors); 5252 } else /* MFI adapters */ 5253 instance->msix_vectors = 1; 5254 /* Don't bother allocating more MSI-X vectors than cpus */ 5255 instance->msix_vectors = min(instance->msix_vectors, 5256 (unsigned int)num_online_cpus()); 5257 if (smp_affinity_enable) 5258 irq_flags |= PCI_IRQ_AFFINITY; 5259 i = pci_alloc_irq_vectors(instance->pdev, 1, 5260 instance->msix_vectors, irq_flags); 5261 if (i > 0) 5262 instance->msix_vectors = i; 5263 else 5264 instance->msix_vectors = 0; 5265 } 5266 /* 5267 * MSI-X host index 0 is common for all adapter. 5268 * It is used for all MPT based Adapters. 5269 */ 5270 if (instance->msix_combined) { 5271 instance->reply_post_host_index_addr[0] = 5272 (u32 *)((u8 *)instance->reg_set + 5273 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 5274 } else { 5275 instance->reply_post_host_index_addr[0] = 5276 (u32 *)((u8 *)instance->reg_set + 5277 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 5278 } 5279 5280 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); 5281 if (i < 0) 5282 goto fail_setup_irqs; 5283 5284 dev_info(&instance->pdev->dev, 5285 "firmware supports msix\t: (%d)", fw_msix_count); 5286 dev_info(&instance->pdev->dev, 5287 "current msix/online cpus\t: (%d/%d)\n", 5288 instance->msix_vectors, (unsigned int)num_online_cpus()); 5289 dev_info(&instance->pdev->dev, 5290 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 5291 5292 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 5293 (unsigned long)instance); 5294 5295 instance->ctrl_info = kzalloc(sizeof(struct megasas_ctrl_info), 5296 GFP_KERNEL); 5297 if (instance->ctrl_info == NULL) 5298 goto fail_init_adapter; 5299 5300 /* 5301 * Below are default value for legacy Firmware. 5302 * non-fusion based controllers 5303 */ 5304 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5305 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5306 /* Get operational params, sge flags, send init cmd to controller */ 5307 if (instance->instancet->init_adapter(instance)) 5308 goto fail_init_adapter; 5309 5310 if (instance->is_ventura) { 5311 scratch_pad_4 = 5312 readl(&instance->reg_set->outbound_scratch_pad_4); 5313 if ((scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK) >= 5314 MR_DEFAULT_NVME_PAGE_SHIFT) 5315 instance->nvme_page_size = 5316 (1 << (scratch_pad_4 & MR_NVME_PAGE_SIZE_MASK)); 5317 5318 dev_info(&instance->pdev->dev, 5319 "NVME page size\t: (%d)\n", instance->nvme_page_size); 5320 } 5321 5322 if (instance->msix_vectors ? 5323 megasas_setup_irqs_msix(instance, 1) : 5324 megasas_setup_irqs_ioapic(instance)) 5325 goto fail_init_adapter; 5326 5327 instance->instancet->enable_intr(instance); 5328 5329 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 5330 5331 megasas_setup_jbod_map(instance); 5332 5333 /** for passthrough 5334 * the following function will get the PD LIST. 5335 */ 5336 memset(instance->pd_list, 0, 5337 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); 5338 if (megasas_get_pd_list(instance) < 0) { 5339 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5340 goto fail_get_ld_pd_list; 5341 } 5342 5343 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 5344 5345 /* stream detection initialization */ 5346 if (instance->is_ventura && fusion) { 5347 fusion->stream_detect_by_ld = 5348 kzalloc(sizeof(struct LD_STREAM_DETECT *) 5349 * MAX_LOGICAL_DRIVES_EXT, 5350 GFP_KERNEL); 5351 if (!fusion->stream_detect_by_ld) { 5352 dev_err(&instance->pdev->dev, 5353 "unable to allocate stream detection for pool of LDs\n"); 5354 goto fail_get_ld_pd_list; 5355 } 5356 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 5357 fusion->stream_detect_by_ld[i] = 5358 kmalloc(sizeof(struct LD_STREAM_DETECT), 5359 GFP_KERNEL); 5360 if (!fusion->stream_detect_by_ld[i]) { 5361 dev_err(&instance->pdev->dev, 5362 "unable to allocate stream detect by LD\n "); 5363 for (j = 0; j < i; ++j) 5364 kfree(fusion->stream_detect_by_ld[j]); 5365 kfree(fusion->stream_detect_by_ld); 5366 fusion->stream_detect_by_ld = NULL; 5367 goto fail_get_ld_pd_list; 5368 } 5369 fusion->stream_detect_by_ld[i]->mru_bit_map 5370 = MR_STREAM_BITMAP; 5371 } 5372 } 5373 5374 if (megasas_ld_list_query(instance, 5375 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) 5376 goto fail_get_ld_pd_list; 5377 5378 /* 5379 * Compute the max allowed sectors per IO: The controller info has two 5380 * limits on max sectors. Driver should use the minimum of these two. 5381 * 5382 * 1 << stripe_sz_ops.min = max sectors per strip 5383 * 5384 * Note that older firmwares ( < FW ver 30) didn't report information 5385 * to calculate max_sectors_1. So the number ended up as zero always. 5386 */ 5387 tmp_sectors = 0; 5388 ctrl_info = instance->ctrl_info; 5389 5390 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 5391 le16_to_cpu(ctrl_info->max_strips_per_io); 5392 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 5393 5394 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 5395 5396 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 5397 instance->passive = ctrl_info->cluster.passive; 5398 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 5399 instance->UnevenSpanSupport = 5400 ctrl_info->adapterOperations2.supportUnevenSpans; 5401 if (instance->UnevenSpanSupport) { 5402 struct fusion_context *fusion = instance->ctrl_context; 5403 if (MR_ValidateMapInfo(instance)) 5404 fusion->fast_path_io = 1; 5405 else 5406 fusion->fast_path_io = 0; 5407 5408 } 5409 if (ctrl_info->host_interface.SRIOV) { 5410 instance->requestorId = ctrl_info->iov.requestorId; 5411 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 5412 if (!ctrl_info->adapterOperations2.activePassive) 5413 instance->PlasmaFW111 = 1; 5414 5415 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 5416 instance->PlasmaFW111 ? "1.11" : "new"); 5417 5418 if (instance->PlasmaFW111) { 5419 iovPtr = (struct IOV_111 *) 5420 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 5421 instance->requestorId = iovPtr->requestorId; 5422 } 5423 } 5424 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 5425 instance->requestorId); 5426 } 5427 5428 instance->crash_dump_fw_support = 5429 ctrl_info->adapterOperations3.supportCrashDump; 5430 instance->crash_dump_drv_support = 5431 (instance->crash_dump_fw_support && 5432 instance->crash_dump_buf); 5433 if (instance->crash_dump_drv_support) 5434 megasas_set_crash_dump_params(instance, 5435 MR_CRASH_BUF_TURN_OFF); 5436 5437 else { 5438 if (instance->crash_dump_buf) 5439 pci_free_consistent(instance->pdev, 5440 CRASH_DMA_BUF_SIZE, 5441 instance->crash_dump_buf, 5442 instance->crash_dump_h); 5443 instance->crash_dump_buf = NULL; 5444 } 5445 5446 5447 dev_info(&instance->pdev->dev, 5448 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 5449 le16_to_cpu(ctrl_info->pci.vendor_id), 5450 le16_to_cpu(ctrl_info->pci.device_id), 5451 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 5452 le16_to_cpu(ctrl_info->pci.sub_device_id)); 5453 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 5454 instance->UnevenSpanSupport ? "yes" : "no"); 5455 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 5456 instance->crash_dump_drv_support ? "yes" : "no"); 5457 dev_info(&instance->pdev->dev, "jbod sync map : %s\n", 5458 instance->use_seqnum_jbod_fp ? "yes" : "no"); 5459 5460 5461 instance->max_sectors_per_req = instance->max_num_sge * 5462 SGE_BUFFER_SIZE / 512; 5463 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 5464 instance->max_sectors_per_req = tmp_sectors; 5465 5466 /* Check for valid throttlequeuedepth module parameter */ 5467 if (throttlequeuedepth && 5468 throttlequeuedepth <= instance->max_scsi_cmds) 5469 instance->throttlequeuedepth = throttlequeuedepth; 5470 else 5471 instance->throttlequeuedepth = 5472 MEGASAS_THROTTLE_QUEUE_DEPTH; 5473 5474 if (resetwaittime > MEGASAS_RESET_WAIT_TIME) 5475 resetwaittime = MEGASAS_RESET_WAIT_TIME; 5476 5477 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 5478 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 5479 5480 /* Launch SR-IOV heartbeat timer */ 5481 if (instance->requestorId) { 5482 if (!megasas_sriov_start_heartbeat(instance, 1)) 5483 megasas_start_timer(instance, 5484 &instance->sriov_heartbeat_timer, 5485 megasas_sriov_heartbeat_handler, 5486 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 5487 else 5488 instance->skip_heartbeat_timer_del = 1; 5489 } 5490 5491 return 0; 5492 5493 fail_get_ld_pd_list: 5494 instance->instancet->disable_intr(instance); 5495 fail_init_adapter: 5496 megasas_destroy_irqs(instance); 5497 fail_setup_irqs: 5498 if (instance->msix_vectors) 5499 pci_free_irq_vectors(instance->pdev); 5500 instance->msix_vectors = 0; 5501 fail_ready_state: 5502 kfree(instance->ctrl_info); 5503 instance->ctrl_info = NULL; 5504 iounmap(instance->reg_set); 5505 5506 fail_ioremap: 5507 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 5508 5509 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 5510 __func__, __LINE__); 5511 return -EINVAL; 5512 } 5513 5514 /** 5515 * megasas_release_mfi - Reverses the FW initialization 5516 * @instance: Adapter soft state 5517 */ 5518 static void megasas_release_mfi(struct megasas_instance *instance) 5519 { 5520 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 5521 5522 if (instance->reply_queue) 5523 pci_free_consistent(instance->pdev, reply_q_sz, 5524 instance->reply_queue, instance->reply_queue_h); 5525 5526 megasas_free_cmds(instance); 5527 5528 iounmap(instance->reg_set); 5529 5530 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 5531 } 5532 5533 /** 5534 * megasas_get_seq_num - Gets latest event sequence numbers 5535 * @instance: Adapter soft state 5536 * @eli: FW event log sequence numbers information 5537 * 5538 * FW maintains a log of all events in a non-volatile area. Upper layers would 5539 * usually find out the latest sequence number of the events, the seq number at 5540 * the boot etc. They would "read" all the events below the latest seq number 5541 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 5542 * number), they would subsribe to AEN (asynchronous event notification) and 5543 * wait for the events to happen. 5544 */ 5545 static int 5546 megasas_get_seq_num(struct megasas_instance *instance, 5547 struct megasas_evt_log_info *eli) 5548 { 5549 struct megasas_cmd *cmd; 5550 struct megasas_dcmd_frame *dcmd; 5551 struct megasas_evt_log_info *el_info; 5552 dma_addr_t el_info_h = 0; 5553 5554 cmd = megasas_get_cmd(instance); 5555 5556 if (!cmd) { 5557 return -ENOMEM; 5558 } 5559 5560 dcmd = &cmd->frame->dcmd; 5561 el_info = pci_alloc_consistent(instance->pdev, 5562 sizeof(struct megasas_evt_log_info), 5563 &el_info_h); 5564 5565 if (!el_info) { 5566 megasas_return_cmd(instance, cmd); 5567 return -ENOMEM; 5568 } 5569 5570 memset(el_info, 0, sizeof(*el_info)); 5571 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5572 5573 dcmd->cmd = MFI_CMD_DCMD; 5574 dcmd->cmd_status = 0x0; 5575 dcmd->sge_count = 1; 5576 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 5577 dcmd->timeout = 0; 5578 dcmd->pad_0 = 0; 5579 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 5580 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 5581 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(el_info_h); 5582 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 5583 5584 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) == 5585 DCMD_SUCCESS) { 5586 /* 5587 * Copy the data back into callers buffer 5588 */ 5589 eli->newest_seq_num = el_info->newest_seq_num; 5590 eli->oldest_seq_num = el_info->oldest_seq_num; 5591 eli->clear_seq_num = el_info->clear_seq_num; 5592 eli->shutdown_seq_num = el_info->shutdown_seq_num; 5593 eli->boot_seq_num = el_info->boot_seq_num; 5594 } else 5595 dev_err(&instance->pdev->dev, "DCMD failed " 5596 "from %s\n", __func__); 5597 5598 pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info), 5599 el_info, el_info_h); 5600 5601 megasas_return_cmd(instance, cmd); 5602 5603 return 0; 5604 } 5605 5606 /** 5607 * megasas_register_aen - Registers for asynchronous event notification 5608 * @instance: Adapter soft state 5609 * @seq_num: The starting sequence number 5610 * @class_locale: Class of the event 5611 * 5612 * This function subscribes for AEN for events beyond the @seq_num. It requests 5613 * to be notified if and only if the event is of type @class_locale 5614 */ 5615 static int 5616 megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 5617 u32 class_locale_word) 5618 { 5619 int ret_val; 5620 struct megasas_cmd *cmd; 5621 struct megasas_dcmd_frame *dcmd; 5622 union megasas_evt_class_locale curr_aen; 5623 union megasas_evt_class_locale prev_aen; 5624 5625 /* 5626 * If there an AEN pending already (aen_cmd), check if the 5627 * class_locale of that pending AEN is inclusive of the new 5628 * AEN request we currently have. If it is, then we don't have 5629 * to do anything. In other words, whichever events the current 5630 * AEN request is subscribing to, have already been subscribed 5631 * to. 5632 * 5633 * If the old_cmd is _not_ inclusive, then we have to abort 5634 * that command, form a class_locale that is superset of both 5635 * old and current and re-issue to the FW 5636 */ 5637 5638 curr_aen.word = class_locale_word; 5639 5640 if (instance->aen_cmd) { 5641 5642 prev_aen.word = 5643 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 5644 5645 /* 5646 * A class whose enum value is smaller is inclusive of all 5647 * higher values. If a PROGRESS (= -1) was previously 5648 * registered, then a new registration requests for higher 5649 * classes need not be sent to FW. They are automatically 5650 * included. 5651 * 5652 * Locale numbers don't have such hierarchy. They are bitmap 5653 * values 5654 */ 5655 if ((prev_aen.members.class <= curr_aen.members.class) && 5656 !((prev_aen.members.locale & curr_aen.members.locale) ^ 5657 curr_aen.members.locale)) { 5658 /* 5659 * Previously issued event registration includes 5660 * current request. Nothing to do. 5661 */ 5662 return 0; 5663 } else { 5664 curr_aen.members.locale |= prev_aen.members.locale; 5665 5666 if (prev_aen.members.class < curr_aen.members.class) 5667 curr_aen.members.class = prev_aen.members.class; 5668 5669 instance->aen_cmd->abort_aen = 1; 5670 ret_val = megasas_issue_blocked_abort_cmd(instance, 5671 instance-> 5672 aen_cmd, 30); 5673 5674 if (ret_val) { 5675 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 5676 "previous AEN command\n"); 5677 return ret_val; 5678 } 5679 } 5680 } 5681 5682 cmd = megasas_get_cmd(instance); 5683 5684 if (!cmd) 5685 return -ENOMEM; 5686 5687 dcmd = &cmd->frame->dcmd; 5688 5689 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 5690 5691 /* 5692 * Prepare DCMD for aen registration 5693 */ 5694 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5695 5696 dcmd->cmd = MFI_CMD_DCMD; 5697 dcmd->cmd_status = 0x0; 5698 dcmd->sge_count = 1; 5699 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 5700 dcmd->timeout = 0; 5701 dcmd->pad_0 = 0; 5702 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 5703 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 5704 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 5705 instance->last_seq_num = seq_num; 5706 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 5707 dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->evt_detail_h); 5708 dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_detail)); 5709 5710 if (instance->aen_cmd != NULL) { 5711 megasas_return_cmd(instance, cmd); 5712 return 0; 5713 } 5714 5715 /* 5716 * Store reference to the cmd used to register for AEN. When an 5717 * application wants us to register for AEN, we have to abort this 5718 * cmd and re-register with a new EVENT LOCALE supplied by that app 5719 */ 5720 instance->aen_cmd = cmd; 5721 5722 /* 5723 * Issue the aen registration frame 5724 */ 5725 instance->instancet->issue_dcmd(instance, cmd); 5726 5727 return 0; 5728 } 5729 5730 /* megasas_get_target_prop - Send DCMD with below details to firmware. 5731 * 5732 * This DCMD will fetch few properties of LD/system PD defined 5733 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 5734 * 5735 * DCMD send by drivers whenever new target is added to the OS. 5736 * 5737 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 5738 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 5739 * 0 = system PD, 1 = LD. 5740 * dcmd.mbox.s[1] - TargetID for LD/system PD. 5741 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 5742 * 5743 * @instance: Adapter soft state 5744 * @sdev: OS provided scsi device 5745 * 5746 * Returns 0 on success non-zero on failure. 5747 */ 5748 static int 5749 megasas_get_target_prop(struct megasas_instance *instance, 5750 struct scsi_device *sdev) 5751 { 5752 int ret; 5753 struct megasas_cmd *cmd; 5754 struct megasas_dcmd_frame *dcmd; 5755 u16 targetId = (sdev->channel % 2) + sdev->id; 5756 5757 cmd = megasas_get_cmd(instance); 5758 5759 if (!cmd) { 5760 dev_err(&instance->pdev->dev, 5761 "Failed to get cmd %s\n", __func__); 5762 return -ENOMEM; 5763 } 5764 5765 dcmd = &cmd->frame->dcmd; 5766 5767 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 5768 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5769 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 5770 5771 dcmd->mbox.s[1] = cpu_to_le16(targetId); 5772 dcmd->cmd = MFI_CMD_DCMD; 5773 dcmd->cmd_status = 0xFF; 5774 dcmd->sge_count = 1; 5775 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); 5776 dcmd->timeout = 0; 5777 dcmd->pad_0 = 0; 5778 dcmd->data_xfer_len = 5779 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 5780 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 5781 dcmd->sgl.sge32[0].phys_addr = 5782 cpu_to_le32(instance->tgt_prop_h); 5783 dcmd->sgl.sge32[0].length = 5784 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 5785 5786 if (instance->ctrl_context && !instance->mask_interrupts) 5787 ret = megasas_issue_blocked_cmd(instance, 5788 cmd, MFI_IO_TIMEOUT_SECS); 5789 else 5790 ret = megasas_issue_polled(instance, cmd); 5791 5792 switch (ret) { 5793 case DCMD_TIMEOUT: 5794 switch (dcmd_timeout_ocr_possible(instance)) { 5795 case INITIATE_OCR: 5796 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5797 megasas_reset_fusion(instance->host, 5798 MFI_IO_TIMEOUT_OCR); 5799 break; 5800 case KILL_ADAPTER: 5801 megaraid_sas_kill_hba(instance); 5802 break; 5803 case IGNORE_TIMEOUT: 5804 dev_info(&instance->pdev->dev, 5805 "Ignore DCMD timeout: %s %d\n", 5806 __func__, __LINE__); 5807 break; 5808 } 5809 break; 5810 5811 default: 5812 megasas_return_cmd(instance, cmd); 5813 } 5814 if (ret != DCMD_SUCCESS) 5815 dev_err(&instance->pdev->dev, 5816 "return from %s %d return value %d\n", 5817 __func__, __LINE__, ret); 5818 5819 return ret; 5820 } 5821 5822 /** 5823 * megasas_start_aen - Subscribes to AEN during driver load time 5824 * @instance: Adapter soft state 5825 */ 5826 static int megasas_start_aen(struct megasas_instance *instance) 5827 { 5828 struct megasas_evt_log_info eli; 5829 union megasas_evt_class_locale class_locale; 5830 5831 /* 5832 * Get the latest sequence number from FW 5833 */ 5834 memset(&eli, 0, sizeof(eli)); 5835 5836 if (megasas_get_seq_num(instance, &eli)) 5837 return -1; 5838 5839 /* 5840 * Register AEN with FW for latest sequence number plus 1 5841 */ 5842 class_locale.members.reserved = 0; 5843 class_locale.members.locale = MR_EVT_LOCALE_ALL; 5844 class_locale.members.class = MR_EVT_CLASS_DEBUG; 5845 5846 return megasas_register_aen(instance, 5847 le32_to_cpu(eli.newest_seq_num) + 1, 5848 class_locale.word); 5849 } 5850 5851 /** 5852 * megasas_io_attach - Attaches this driver to SCSI mid-layer 5853 * @instance: Adapter soft state 5854 */ 5855 static int megasas_io_attach(struct megasas_instance *instance) 5856 { 5857 struct Scsi_Host *host = instance->host; 5858 5859 /* 5860 * Export parameters required by SCSI mid-layer 5861 */ 5862 host->unique_id = instance->unique_id; 5863 host->can_queue = instance->max_scsi_cmds; 5864 host->this_id = instance->init_id; 5865 host->sg_tablesize = instance->max_num_sge; 5866 5867 if (instance->fw_support_ieee) 5868 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 5869 5870 /* 5871 * Check if the module parameter value for max_sectors can be used 5872 */ 5873 if (max_sectors && max_sectors < instance->max_sectors_per_req) 5874 instance->max_sectors_per_req = max_sectors; 5875 else { 5876 if (max_sectors) { 5877 if (((instance->pdev->device == 5878 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 5879 (instance->pdev->device == 5880 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 5881 (max_sectors <= MEGASAS_MAX_SECTORS)) { 5882 instance->max_sectors_per_req = max_sectors; 5883 } else { 5884 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 5885 "and <= %d (or < 1MB for GEN2 controller)\n", 5886 instance->max_sectors_per_req); 5887 } 5888 } 5889 } 5890 5891 host->max_sectors = instance->max_sectors_per_req; 5892 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 5893 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 5894 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 5895 host->max_lun = MEGASAS_MAX_LUN; 5896 host->max_cmd_len = 16; 5897 5898 /* 5899 * Notify the mid-layer about the new controller 5900 */ 5901 if (scsi_add_host(host, &instance->pdev->dev)) { 5902 dev_err(&instance->pdev->dev, 5903 "Failed to add host from %s %d\n", 5904 __func__, __LINE__); 5905 return -ENODEV; 5906 } 5907 5908 return 0; 5909 } 5910 5911 static int 5912 megasas_set_dma_mask(struct pci_dev *pdev) 5913 { 5914 /* 5915 * All our controllers are capable of performing 64-bit DMA 5916 */ 5917 if (IS_DMA64) { 5918 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) { 5919 5920 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 5921 goto fail_set_dma_mask; 5922 } 5923 } else { 5924 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 5925 goto fail_set_dma_mask; 5926 } 5927 /* 5928 * Ensure that all data structures are allocated in 32-bit 5929 * memory. 5930 */ 5931 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) { 5932 /* Try 32bit DMA mask and 32 bit Consistent dma mask */ 5933 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) 5934 && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) 5935 dev_info(&pdev->dev, "set 32bit DMA mask" 5936 "and 32 bit consistent mask\n"); 5937 else 5938 goto fail_set_dma_mask; 5939 } 5940 5941 return 0; 5942 5943 fail_set_dma_mask: 5944 return 1; 5945 } 5946 5947 /** 5948 * megasas_probe_one - PCI hotplug entry point 5949 * @pdev: PCI device structure 5950 * @id: PCI ids of supported hotplugged adapter 5951 */ 5952 static int megasas_probe_one(struct pci_dev *pdev, 5953 const struct pci_device_id *id) 5954 { 5955 int rval, pos; 5956 struct Scsi_Host *host; 5957 struct megasas_instance *instance; 5958 u16 control = 0; 5959 struct fusion_context *fusion = NULL; 5960 5961 /* Reset MSI-X in the kdump kernel */ 5962 if (reset_devices) { 5963 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 5964 if (pos) { 5965 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 5966 &control); 5967 if (control & PCI_MSIX_FLAGS_ENABLE) { 5968 dev_info(&pdev->dev, "resetting MSI-X\n"); 5969 pci_write_config_word(pdev, 5970 pos + PCI_MSIX_FLAGS, 5971 control & 5972 ~PCI_MSIX_FLAGS_ENABLE); 5973 } 5974 } 5975 } 5976 5977 /* 5978 * PCI prepping: enable device set bus mastering and dma mask 5979 */ 5980 rval = pci_enable_device_mem(pdev); 5981 5982 if (rval) { 5983 return rval; 5984 } 5985 5986 pci_set_master(pdev); 5987 5988 if (megasas_set_dma_mask(pdev)) 5989 goto fail_set_dma_mask; 5990 5991 host = scsi_host_alloc(&megasas_template, 5992 sizeof(struct megasas_instance)); 5993 5994 if (!host) { 5995 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 5996 goto fail_alloc_instance; 5997 } 5998 5999 instance = (struct megasas_instance *)host->hostdata; 6000 memset(instance, 0, sizeof(*instance)); 6001 atomic_set(&instance->fw_reset_no_pci_access, 0); 6002 instance->pdev = pdev; 6003 6004 switch (instance->pdev->device) { 6005 case PCI_DEVICE_ID_LSI_VENTURA: 6006 case PCI_DEVICE_ID_LSI_HARPOON: 6007 case PCI_DEVICE_ID_LSI_TOMCAT: 6008 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 6009 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 6010 instance->is_ventura = true; 6011 case PCI_DEVICE_ID_LSI_FUSION: 6012 case PCI_DEVICE_ID_LSI_PLASMA: 6013 case PCI_DEVICE_ID_LSI_INVADER: 6014 case PCI_DEVICE_ID_LSI_FURY: 6015 case PCI_DEVICE_ID_LSI_INTRUDER: 6016 case PCI_DEVICE_ID_LSI_INTRUDER_24: 6017 case PCI_DEVICE_ID_LSI_CUTLASS_52: 6018 case PCI_DEVICE_ID_LSI_CUTLASS_53: 6019 { 6020 if (megasas_alloc_fusion_context(instance)) { 6021 megasas_free_fusion_context(instance); 6022 goto fail_alloc_dma_buf; 6023 } 6024 fusion = instance->ctrl_context; 6025 6026 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) || 6027 (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA)) 6028 fusion->adapter_type = THUNDERBOLT_SERIES; 6029 else if (instance->is_ventura) 6030 fusion->adapter_type = VENTURA_SERIES; 6031 else 6032 fusion->adapter_type = INVADER_SERIES; 6033 } 6034 break; 6035 default: /* For all other supported controllers */ 6036 6037 instance->producer = 6038 pci_alloc_consistent(pdev, sizeof(u32), 6039 &instance->producer_h); 6040 instance->consumer = 6041 pci_alloc_consistent(pdev, sizeof(u32), 6042 &instance->consumer_h); 6043 6044 if (!instance->producer || !instance->consumer) { 6045 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate " 6046 "memory for producer, consumer\n"); 6047 goto fail_alloc_dma_buf; 6048 } 6049 6050 *instance->producer = 0; 6051 *instance->consumer = 0; 6052 break; 6053 } 6054 6055 /* Crash dump feature related initialisation*/ 6056 instance->drv_buf_index = 0; 6057 instance->drv_buf_alloc = 0; 6058 instance->crash_dump_fw_support = 0; 6059 instance->crash_dump_app_support = 0; 6060 instance->fw_crash_state = UNAVAILABLE; 6061 spin_lock_init(&instance->crashdump_lock); 6062 instance->crash_dump_buf = NULL; 6063 6064 megasas_poll_wait_aen = 0; 6065 instance->flag_ieee = 0; 6066 instance->ev = NULL; 6067 instance->issuepend_done = 1; 6068 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 6069 instance->is_imr = 0; 6070 6071 instance->evt_detail = pci_alloc_consistent(pdev, 6072 sizeof(struct 6073 megasas_evt_detail), 6074 &instance->evt_detail_h); 6075 6076 if (!instance->evt_detail) { 6077 dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for " 6078 "event detail structure\n"); 6079 goto fail_alloc_dma_buf; 6080 } 6081 6082 if (!reset_devices) { 6083 instance->system_info_buf = pci_zalloc_consistent(pdev, 6084 sizeof(struct MR_DRV_SYSTEM_INFO), 6085 &instance->system_info_h); 6086 if (!instance->system_info_buf) 6087 dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n"); 6088 6089 instance->pd_info = pci_alloc_consistent(pdev, 6090 sizeof(struct MR_PD_INFO), &instance->pd_info_h); 6091 6092 instance->pd_info = pci_alloc_consistent(pdev, 6093 sizeof(struct MR_PD_INFO), &instance->pd_info_h); 6094 instance->tgt_prop = pci_alloc_consistent(pdev, 6095 sizeof(struct MR_TARGET_PROPERTIES), &instance->tgt_prop_h); 6096 6097 if (!instance->pd_info) 6098 dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n"); 6099 6100 if (!instance->tgt_prop) 6101 dev_err(&instance->pdev->dev, "Failed to alloc mem for tgt_prop\n"); 6102 6103 instance->crash_dump_buf = pci_alloc_consistent(pdev, 6104 CRASH_DMA_BUF_SIZE, 6105 &instance->crash_dump_h); 6106 if (!instance->crash_dump_buf) 6107 dev_err(&pdev->dev, "Can't allocate Firmware " 6108 "crash dump DMA buffer\n"); 6109 } 6110 6111 /* 6112 * Initialize locks and queues 6113 */ 6114 INIT_LIST_HEAD(&instance->cmd_pool); 6115 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 6116 6117 atomic_set(&instance->fw_outstanding,0); 6118 6119 init_waitqueue_head(&instance->int_cmd_wait_q); 6120 init_waitqueue_head(&instance->abort_cmd_wait_q); 6121 6122 spin_lock_init(&instance->mfi_pool_lock); 6123 spin_lock_init(&instance->hba_lock); 6124 spin_lock_init(&instance->stream_lock); 6125 spin_lock_init(&instance->completion_lock); 6126 6127 mutex_init(&instance->reset_mutex); 6128 mutex_init(&instance->hba_mutex); 6129 6130 /* 6131 * Initialize PCI related and misc parameters 6132 */ 6133 instance->host = host; 6134 instance->unique_id = pdev->bus->number << 8 | pdev->devfn; 6135 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 6136 instance->ctrl_info = NULL; 6137 6138 6139 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 6140 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 6141 instance->flag_ieee = 1; 6142 6143 megasas_dbg_lvl = 0; 6144 instance->flag = 0; 6145 instance->unload = 1; 6146 instance->last_time = 0; 6147 instance->disableOnlineCtrlReset = 1; 6148 instance->UnevenSpanSupport = 0; 6149 6150 if (instance->ctrl_context) { 6151 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 6152 INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq); 6153 } else 6154 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 6155 6156 /* 6157 * Initialize MFI Firmware 6158 */ 6159 if (megasas_init_fw(instance)) 6160 goto fail_init_mfi; 6161 6162 if (instance->requestorId) { 6163 if (instance->PlasmaFW111) { 6164 instance->vf_affiliation_111 = 6165 pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111), 6166 &instance->vf_affiliation_111_h); 6167 if (!instance->vf_affiliation_111) 6168 dev_warn(&pdev->dev, "Can't allocate " 6169 "memory for VF affiliation buffer\n"); 6170 } else { 6171 instance->vf_affiliation = 6172 pci_alloc_consistent(pdev, 6173 (MAX_LOGICAL_DRIVES + 1) * 6174 sizeof(struct MR_LD_VF_AFFILIATION), 6175 &instance->vf_affiliation_h); 6176 if (!instance->vf_affiliation) 6177 dev_warn(&pdev->dev, "Can't allocate " 6178 "memory for VF affiliation buffer\n"); 6179 } 6180 } 6181 6182 /* 6183 * Store instance in PCI softstate 6184 */ 6185 pci_set_drvdata(pdev, instance); 6186 6187 /* 6188 * Add this controller to megasas_mgmt_info structure so that it 6189 * can be exported to management applications 6190 */ 6191 megasas_mgmt_info.count++; 6192 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 6193 megasas_mgmt_info.max_index++; 6194 6195 /* 6196 * Register with SCSI mid-layer 6197 */ 6198 if (megasas_io_attach(instance)) 6199 goto fail_io_attach; 6200 6201 instance->unload = 0; 6202 /* 6203 * Trigger SCSI to scan our drives 6204 */ 6205 scsi_scan_host(host); 6206 6207 /* 6208 * Initiate AEN (Asynchronous Event Notification) 6209 */ 6210 if (megasas_start_aen(instance)) { 6211 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 6212 goto fail_start_aen; 6213 } 6214 6215 /* Get current SR-IOV LD/VF affiliation */ 6216 if (instance->requestorId) 6217 megasas_get_ld_vf_affiliation(instance, 1); 6218 6219 return 0; 6220 6221 fail_start_aen: 6222 fail_io_attach: 6223 megasas_mgmt_info.count--; 6224 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 6225 megasas_mgmt_info.max_index--; 6226 6227 instance->instancet->disable_intr(instance); 6228 megasas_destroy_irqs(instance); 6229 6230 if (instance->ctrl_context) 6231 megasas_release_fusion(instance); 6232 else 6233 megasas_release_mfi(instance); 6234 if (instance->msix_vectors) 6235 pci_free_irq_vectors(instance->pdev); 6236 fail_init_mfi: 6237 fail_alloc_dma_buf: 6238 if (instance->evt_detail) 6239 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), 6240 instance->evt_detail, 6241 instance->evt_detail_h); 6242 6243 if (instance->pd_info) 6244 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), 6245 instance->pd_info, 6246 instance->pd_info_h); 6247 if (instance->tgt_prop) 6248 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES), 6249 instance->tgt_prop, 6250 instance->tgt_prop_h); 6251 if (instance->producer) 6252 pci_free_consistent(pdev, sizeof(u32), instance->producer, 6253 instance->producer_h); 6254 if (instance->consumer) 6255 pci_free_consistent(pdev, sizeof(u32), instance->consumer, 6256 instance->consumer_h); 6257 scsi_host_put(host); 6258 6259 fail_alloc_instance: 6260 fail_set_dma_mask: 6261 pci_disable_device(pdev); 6262 6263 return -ENODEV; 6264 } 6265 6266 /** 6267 * megasas_flush_cache - Requests FW to flush all its caches 6268 * @instance: Adapter soft state 6269 */ 6270 static void megasas_flush_cache(struct megasas_instance *instance) 6271 { 6272 struct megasas_cmd *cmd; 6273 struct megasas_dcmd_frame *dcmd; 6274 6275 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 6276 return; 6277 6278 cmd = megasas_get_cmd(instance); 6279 6280 if (!cmd) 6281 return; 6282 6283 dcmd = &cmd->frame->dcmd; 6284 6285 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6286 6287 dcmd->cmd = MFI_CMD_DCMD; 6288 dcmd->cmd_status = 0x0; 6289 dcmd->sge_count = 0; 6290 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 6291 dcmd->timeout = 0; 6292 dcmd->pad_0 = 0; 6293 dcmd->data_xfer_len = 0; 6294 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 6295 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 6296 6297 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 6298 != DCMD_SUCCESS) { 6299 dev_err(&instance->pdev->dev, 6300 "return from %s %d\n", __func__, __LINE__); 6301 return; 6302 } 6303 6304 megasas_return_cmd(instance, cmd); 6305 } 6306 6307 /** 6308 * megasas_shutdown_controller - Instructs FW to shutdown the controller 6309 * @instance: Adapter soft state 6310 * @opcode: Shutdown/Hibernate 6311 */ 6312 static void megasas_shutdown_controller(struct megasas_instance *instance, 6313 u32 opcode) 6314 { 6315 struct megasas_cmd *cmd; 6316 struct megasas_dcmd_frame *dcmd; 6317 6318 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 6319 return; 6320 6321 cmd = megasas_get_cmd(instance); 6322 6323 if (!cmd) 6324 return; 6325 6326 if (instance->aen_cmd) 6327 megasas_issue_blocked_abort_cmd(instance, 6328 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 6329 if (instance->map_update_cmd) 6330 megasas_issue_blocked_abort_cmd(instance, 6331 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 6332 if (instance->jbod_seq_cmd) 6333 megasas_issue_blocked_abort_cmd(instance, 6334 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 6335 6336 dcmd = &cmd->frame->dcmd; 6337 6338 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6339 6340 dcmd->cmd = MFI_CMD_DCMD; 6341 dcmd->cmd_status = 0x0; 6342 dcmd->sge_count = 0; 6343 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 6344 dcmd->timeout = 0; 6345 dcmd->pad_0 = 0; 6346 dcmd->data_xfer_len = 0; 6347 dcmd->opcode = cpu_to_le32(opcode); 6348 6349 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 6350 != DCMD_SUCCESS) { 6351 dev_err(&instance->pdev->dev, 6352 "return from %s %d\n", __func__, __LINE__); 6353 return; 6354 } 6355 6356 megasas_return_cmd(instance, cmd); 6357 } 6358 6359 #ifdef CONFIG_PM 6360 /** 6361 * megasas_suspend - driver suspend entry point 6362 * @pdev: PCI device structure 6363 * @state: PCI power state to suspend routine 6364 */ 6365 static int 6366 megasas_suspend(struct pci_dev *pdev, pm_message_t state) 6367 { 6368 struct Scsi_Host *host; 6369 struct megasas_instance *instance; 6370 6371 instance = pci_get_drvdata(pdev); 6372 host = instance->host; 6373 instance->unload = 1; 6374 6375 /* Shutdown SR-IOV heartbeat timer */ 6376 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6377 del_timer_sync(&instance->sriov_heartbeat_timer); 6378 6379 megasas_flush_cache(instance); 6380 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 6381 6382 /* cancel the delayed work if this work still in queue */ 6383 if (instance->ev != NULL) { 6384 struct megasas_aen_event *ev = instance->ev; 6385 cancel_delayed_work_sync(&ev->hotplug_work); 6386 instance->ev = NULL; 6387 } 6388 6389 tasklet_kill(&instance->isr_tasklet); 6390 6391 pci_set_drvdata(instance->pdev, instance); 6392 instance->instancet->disable_intr(instance); 6393 6394 megasas_destroy_irqs(instance); 6395 6396 if (instance->msix_vectors) 6397 pci_free_irq_vectors(instance->pdev); 6398 6399 pci_save_state(pdev); 6400 pci_disable_device(pdev); 6401 6402 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 6403 6404 return 0; 6405 } 6406 6407 /** 6408 * megasas_resume- driver resume entry point 6409 * @pdev: PCI device structure 6410 */ 6411 static int 6412 megasas_resume(struct pci_dev *pdev) 6413 { 6414 int rval; 6415 struct Scsi_Host *host; 6416 struct megasas_instance *instance; 6417 int irq_flags = PCI_IRQ_LEGACY; 6418 6419 instance = pci_get_drvdata(pdev); 6420 host = instance->host; 6421 pci_set_power_state(pdev, PCI_D0); 6422 pci_enable_wake(pdev, PCI_D0, 0); 6423 pci_restore_state(pdev); 6424 6425 /* 6426 * PCI prepping: enable device set bus mastering and dma mask 6427 */ 6428 rval = pci_enable_device_mem(pdev); 6429 6430 if (rval) { 6431 dev_err(&pdev->dev, "Enable device failed\n"); 6432 return rval; 6433 } 6434 6435 pci_set_master(pdev); 6436 6437 if (megasas_set_dma_mask(pdev)) 6438 goto fail_set_dma_mask; 6439 6440 /* 6441 * Initialize MFI Firmware 6442 */ 6443 6444 atomic_set(&instance->fw_outstanding, 0); 6445 6446 /* 6447 * We expect the FW state to be READY 6448 */ 6449 if (megasas_transition_to_ready(instance, 0)) 6450 goto fail_ready_state; 6451 6452 /* Now re-enable MSI-X */ 6453 if (instance->msix_vectors) { 6454 irq_flags = PCI_IRQ_MSIX; 6455 if (smp_affinity_enable) 6456 irq_flags |= PCI_IRQ_AFFINITY; 6457 } 6458 rval = pci_alloc_irq_vectors(instance->pdev, 1, 6459 instance->msix_vectors ? 6460 instance->msix_vectors : 1, irq_flags); 6461 if (rval < 0) 6462 goto fail_reenable_msix; 6463 6464 if (instance->ctrl_context) { 6465 megasas_reset_reply_desc(instance); 6466 if (megasas_ioc_init_fusion(instance)) { 6467 megasas_free_cmds(instance); 6468 megasas_free_cmds_fusion(instance); 6469 goto fail_init_mfi; 6470 } 6471 if (!megasas_get_map_info(instance)) 6472 megasas_sync_map_info(instance); 6473 } else { 6474 *instance->producer = 0; 6475 *instance->consumer = 0; 6476 if (megasas_issue_init_mfi(instance)) 6477 goto fail_init_mfi; 6478 } 6479 6480 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6481 (unsigned long)instance); 6482 6483 if (instance->msix_vectors ? 6484 megasas_setup_irqs_msix(instance, 0) : 6485 megasas_setup_irqs_ioapic(instance)) 6486 goto fail_init_mfi; 6487 6488 /* Re-launch SR-IOV heartbeat timer */ 6489 if (instance->requestorId) { 6490 if (!megasas_sriov_start_heartbeat(instance, 0)) 6491 megasas_start_timer(instance, 6492 &instance->sriov_heartbeat_timer, 6493 megasas_sriov_heartbeat_handler, 6494 MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 6495 else { 6496 instance->skip_heartbeat_timer_del = 1; 6497 goto fail_init_mfi; 6498 } 6499 } 6500 6501 instance->instancet->enable_intr(instance); 6502 megasas_setup_jbod_map(instance); 6503 instance->unload = 0; 6504 6505 /* 6506 * Initiate AEN (Asynchronous Event Notification) 6507 */ 6508 if (megasas_start_aen(instance)) 6509 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 6510 6511 return 0; 6512 6513 fail_init_mfi: 6514 if (instance->evt_detail) 6515 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), 6516 instance->evt_detail, 6517 instance->evt_detail_h); 6518 6519 if (instance->pd_info) 6520 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), 6521 instance->pd_info, 6522 instance->pd_info_h); 6523 if (instance->tgt_prop) 6524 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES), 6525 instance->tgt_prop, 6526 instance->tgt_prop_h); 6527 if (instance->producer) 6528 pci_free_consistent(pdev, sizeof(u32), instance->producer, 6529 instance->producer_h); 6530 if (instance->consumer) 6531 pci_free_consistent(pdev, sizeof(u32), instance->consumer, 6532 instance->consumer_h); 6533 scsi_host_put(host); 6534 6535 fail_set_dma_mask: 6536 fail_ready_state: 6537 fail_reenable_msix: 6538 6539 pci_disable_device(pdev); 6540 6541 return -ENODEV; 6542 } 6543 #else 6544 #define megasas_suspend NULL 6545 #define megasas_resume NULL 6546 #endif 6547 6548 static inline int 6549 megasas_wait_for_adapter_operational(struct megasas_instance *instance) 6550 { 6551 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 6552 int i; 6553 6554 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 6555 return 1; 6556 6557 for (i = 0; i < wait_time; i++) { 6558 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 6559 break; 6560 6561 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 6562 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 6563 6564 msleep(1000); 6565 } 6566 6567 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 6568 dev_info(&instance->pdev->dev, "%s timed out while waiting for HBA to recover.\n", 6569 __func__); 6570 return 1; 6571 } 6572 6573 return 0; 6574 } 6575 6576 /** 6577 * megasas_detach_one - PCI hot"un"plug entry point 6578 * @pdev: PCI device structure 6579 */ 6580 static void megasas_detach_one(struct pci_dev *pdev) 6581 { 6582 int i; 6583 struct Scsi_Host *host; 6584 struct megasas_instance *instance; 6585 struct fusion_context *fusion; 6586 u32 pd_seq_map_sz; 6587 6588 instance = pci_get_drvdata(pdev); 6589 instance->unload = 1; 6590 host = instance->host; 6591 fusion = instance->ctrl_context; 6592 6593 /* Shutdown SR-IOV heartbeat timer */ 6594 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6595 del_timer_sync(&instance->sriov_heartbeat_timer); 6596 6597 if (instance->fw_crash_state != UNAVAILABLE) 6598 megasas_free_host_crash_buffer(instance); 6599 scsi_remove_host(instance->host); 6600 6601 if (megasas_wait_for_adapter_operational(instance)) 6602 goto skip_firing_dcmds; 6603 6604 megasas_flush_cache(instance); 6605 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 6606 6607 skip_firing_dcmds: 6608 /* cancel the delayed work if this work still in queue*/ 6609 if (instance->ev != NULL) { 6610 struct megasas_aen_event *ev = instance->ev; 6611 cancel_delayed_work_sync(&ev->hotplug_work); 6612 instance->ev = NULL; 6613 } 6614 6615 /* cancel all wait events */ 6616 wake_up_all(&instance->int_cmd_wait_q); 6617 6618 tasklet_kill(&instance->isr_tasklet); 6619 6620 /* 6621 * Take the instance off the instance array. Note that we will not 6622 * decrement the max_index. We let this array be sparse array 6623 */ 6624 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 6625 if (megasas_mgmt_info.instance[i] == instance) { 6626 megasas_mgmt_info.count--; 6627 megasas_mgmt_info.instance[i] = NULL; 6628 6629 break; 6630 } 6631 } 6632 6633 instance->instancet->disable_intr(instance); 6634 6635 megasas_destroy_irqs(instance); 6636 6637 if (instance->msix_vectors) 6638 pci_free_irq_vectors(instance->pdev); 6639 6640 if (instance->is_ventura) { 6641 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 6642 kfree(fusion->stream_detect_by_ld[i]); 6643 kfree(fusion->stream_detect_by_ld); 6644 fusion->stream_detect_by_ld = NULL; 6645 } 6646 6647 6648 if (instance->ctrl_context) { 6649 megasas_release_fusion(instance); 6650 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 6651 (sizeof(struct MR_PD_CFG_SEQ) * 6652 (MAX_PHYSICAL_DEVICES - 1)); 6653 for (i = 0; i < 2 ; i++) { 6654 if (fusion->ld_map[i]) 6655 dma_free_coherent(&instance->pdev->dev, 6656 fusion->max_map_sz, 6657 fusion->ld_map[i], 6658 fusion->ld_map_phys[i]); 6659 if (fusion->ld_drv_map[i]) 6660 free_pages((ulong)fusion->ld_drv_map[i], 6661 fusion->drv_map_pages); 6662 if (fusion->pd_seq_sync[i]) 6663 dma_free_coherent(&instance->pdev->dev, 6664 pd_seq_map_sz, 6665 fusion->pd_seq_sync[i], 6666 fusion->pd_seq_phys[i]); 6667 } 6668 megasas_free_fusion_context(instance); 6669 } else { 6670 megasas_release_mfi(instance); 6671 pci_free_consistent(pdev, sizeof(u32), 6672 instance->producer, 6673 instance->producer_h); 6674 pci_free_consistent(pdev, sizeof(u32), 6675 instance->consumer, 6676 instance->consumer_h); 6677 } 6678 6679 kfree(instance->ctrl_info); 6680 6681 if (instance->evt_detail) 6682 pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), 6683 instance->evt_detail, instance->evt_detail_h); 6684 if (instance->pd_info) 6685 pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), 6686 instance->pd_info, 6687 instance->pd_info_h); 6688 if (instance->tgt_prop) 6689 pci_free_consistent(pdev, sizeof(struct MR_TARGET_PROPERTIES), 6690 instance->tgt_prop, 6691 instance->tgt_prop_h); 6692 if (instance->vf_affiliation) 6693 pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) * 6694 sizeof(struct MR_LD_VF_AFFILIATION), 6695 instance->vf_affiliation, 6696 instance->vf_affiliation_h); 6697 6698 if (instance->vf_affiliation_111) 6699 pci_free_consistent(pdev, 6700 sizeof(struct MR_LD_VF_AFFILIATION_111), 6701 instance->vf_affiliation_111, 6702 instance->vf_affiliation_111_h); 6703 6704 if (instance->hb_host_mem) 6705 pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM), 6706 instance->hb_host_mem, 6707 instance->hb_host_mem_h); 6708 6709 if (instance->crash_dump_buf) 6710 pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE, 6711 instance->crash_dump_buf, instance->crash_dump_h); 6712 6713 if (instance->system_info_buf) 6714 pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO), 6715 instance->system_info_buf, instance->system_info_h); 6716 6717 scsi_host_put(host); 6718 6719 pci_disable_device(pdev); 6720 } 6721 6722 /** 6723 * megasas_shutdown - Shutdown entry point 6724 * @device: Generic device structure 6725 */ 6726 static void megasas_shutdown(struct pci_dev *pdev) 6727 { 6728 struct megasas_instance *instance = pci_get_drvdata(pdev); 6729 6730 instance->unload = 1; 6731 6732 if (megasas_wait_for_adapter_operational(instance)) 6733 goto skip_firing_dcmds; 6734 6735 megasas_flush_cache(instance); 6736 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 6737 6738 skip_firing_dcmds: 6739 instance->instancet->disable_intr(instance); 6740 megasas_destroy_irqs(instance); 6741 6742 if (instance->msix_vectors) 6743 pci_free_irq_vectors(instance->pdev); 6744 } 6745 6746 /** 6747 * megasas_mgmt_open - char node "open" entry point 6748 */ 6749 static int megasas_mgmt_open(struct inode *inode, struct file *filep) 6750 { 6751 /* 6752 * Allow only those users with admin rights 6753 */ 6754 if (!capable(CAP_SYS_ADMIN)) 6755 return -EACCES; 6756 6757 return 0; 6758 } 6759 6760 /** 6761 * megasas_mgmt_fasync - Async notifier registration from applications 6762 * 6763 * This function adds the calling process to a driver global queue. When an 6764 * event occurs, SIGIO will be sent to all processes in this queue. 6765 */ 6766 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 6767 { 6768 int rc; 6769 6770 mutex_lock(&megasas_async_queue_mutex); 6771 6772 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 6773 6774 mutex_unlock(&megasas_async_queue_mutex); 6775 6776 if (rc >= 0) { 6777 /* For sanity check when we get ioctl */ 6778 filep->private_data = filep; 6779 return 0; 6780 } 6781 6782 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 6783 6784 return rc; 6785 } 6786 6787 /** 6788 * megasas_mgmt_poll - char node "poll" entry point 6789 * */ 6790 static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) 6791 { 6792 unsigned int mask; 6793 unsigned long flags; 6794 6795 poll_wait(file, &megasas_poll_wait, wait); 6796 spin_lock_irqsave(&poll_aen_lock, flags); 6797 if (megasas_poll_wait_aen) 6798 mask = (POLLIN | POLLRDNORM); 6799 else 6800 mask = 0; 6801 megasas_poll_wait_aen = 0; 6802 spin_unlock_irqrestore(&poll_aen_lock, flags); 6803 return mask; 6804 } 6805 6806 /* 6807 * megasas_set_crash_dump_params_ioctl: 6808 * Send CRASH_DUMP_MODE DCMD to all controllers 6809 * @cmd: MFI command frame 6810 */ 6811 6812 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 6813 { 6814 struct megasas_instance *local_instance; 6815 int i, error = 0; 6816 int crash_support; 6817 6818 crash_support = cmd->frame->dcmd.mbox.w[0]; 6819 6820 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 6821 local_instance = megasas_mgmt_info.instance[i]; 6822 if (local_instance && local_instance->crash_dump_drv_support) { 6823 if ((atomic_read(&local_instance->adprecovery) == 6824 MEGASAS_HBA_OPERATIONAL) && 6825 !megasas_set_crash_dump_params(local_instance, 6826 crash_support)) { 6827 local_instance->crash_dump_app_support = 6828 crash_support; 6829 dev_info(&local_instance->pdev->dev, 6830 "Application firmware crash " 6831 "dump mode set success\n"); 6832 error = 0; 6833 } else { 6834 dev_info(&local_instance->pdev->dev, 6835 "Application firmware crash " 6836 "dump mode set failed\n"); 6837 error = -1; 6838 } 6839 } 6840 } 6841 return error; 6842 } 6843 6844 /** 6845 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 6846 * @instance: Adapter soft state 6847 * @argp: User's ioctl packet 6848 */ 6849 static int 6850 megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 6851 struct megasas_iocpacket __user * user_ioc, 6852 struct megasas_iocpacket *ioc) 6853 { 6854 struct megasas_sge32 *kern_sge32; 6855 struct megasas_cmd *cmd; 6856 void *kbuff_arr[MAX_IOCTL_SGE]; 6857 dma_addr_t buf_handle = 0; 6858 int error = 0, i; 6859 void *sense = NULL; 6860 dma_addr_t sense_handle; 6861 unsigned long *sense_ptr; 6862 6863 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 6864 6865 if (ioc->sge_count > MAX_IOCTL_SGE) { 6866 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 6867 ioc->sge_count, MAX_IOCTL_SGE); 6868 return -EINVAL; 6869 } 6870 6871 cmd = megasas_get_cmd(instance); 6872 if (!cmd) { 6873 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 6874 return -ENOMEM; 6875 } 6876 6877 /* 6878 * User's IOCTL packet has 2 frames (maximum). Copy those two 6879 * frames into our cmd's frames. cmd->frame's context will get 6880 * overwritten when we copy from user's frames. So set that value 6881 * alone separately 6882 */ 6883 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 6884 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 6885 cmd->frame->hdr.pad_0 = 0; 6886 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_IEEE | 6887 MFI_FRAME_SGL64 | 6888 MFI_FRAME_SENSE64)); 6889 6890 if (cmd->frame->dcmd.opcode == MR_DCMD_CTRL_SHUTDOWN) { 6891 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 6892 megasas_return_cmd(instance, cmd); 6893 return -1; 6894 } 6895 } 6896 6897 if (cmd->frame->dcmd.opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 6898 error = megasas_set_crash_dump_params_ioctl(cmd); 6899 megasas_return_cmd(instance, cmd); 6900 return error; 6901 } 6902 6903 /* 6904 * The management interface between applications and the fw uses 6905 * MFI frames. E.g, RAID configuration changes, LD property changes 6906 * etc are accomplishes through different kinds of MFI frames. The 6907 * driver needs to care only about substituting user buffers with 6908 * kernel buffers in SGLs. The location of SGL is embedded in the 6909 * struct iocpacket itself. 6910 */ 6911 kern_sge32 = (struct megasas_sge32 *) 6912 ((unsigned long)cmd->frame + ioc->sgl_off); 6913 6914 /* 6915 * For each user buffer, create a mirror buffer and copy in 6916 */ 6917 for (i = 0; i < ioc->sge_count; i++) { 6918 if (!ioc->sgl[i].iov_len) 6919 continue; 6920 6921 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 6922 ioc->sgl[i].iov_len, 6923 &buf_handle, GFP_KERNEL); 6924 if (!kbuff_arr[i]) { 6925 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 6926 "kernel SGL buffer for IOCTL\n"); 6927 error = -ENOMEM; 6928 goto out; 6929 } 6930 6931 /* 6932 * We don't change the dma_coherent_mask, so 6933 * pci_alloc_consistent only returns 32bit addresses 6934 */ 6935 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 6936 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 6937 6938 /* 6939 * We created a kernel buffer corresponding to the 6940 * user buffer. Now copy in from the user buffer 6941 */ 6942 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 6943 (u32) (ioc->sgl[i].iov_len))) { 6944 error = -EFAULT; 6945 goto out; 6946 } 6947 } 6948 6949 if (ioc->sense_len) { 6950 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 6951 &sense_handle, GFP_KERNEL); 6952 if (!sense) { 6953 error = -ENOMEM; 6954 goto out; 6955 } 6956 6957 sense_ptr = 6958 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); 6959 *sense_ptr = cpu_to_le32(sense_handle); 6960 } 6961 6962 /* 6963 * Set the sync_cmd flag so that the ISR knows not to complete this 6964 * cmd to the SCSI mid-layer 6965 */ 6966 cmd->sync_cmd = 1; 6967 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) { 6968 cmd->sync_cmd = 0; 6969 dev_err(&instance->pdev->dev, 6970 "return -EBUSY from %s %d opcode 0x%x cmd->cmd_status_drv 0x%x\n", 6971 __func__, __LINE__, cmd->frame->dcmd.opcode, 6972 cmd->cmd_status_drv); 6973 return -EBUSY; 6974 } 6975 6976 cmd->sync_cmd = 0; 6977 6978 if (instance->unload == 1) { 6979 dev_info(&instance->pdev->dev, "Driver unload is in progress " 6980 "don't submit data to application\n"); 6981 goto out; 6982 } 6983 /* 6984 * copy out the kernel buffers to user buffers 6985 */ 6986 for (i = 0; i < ioc->sge_count; i++) { 6987 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 6988 ioc->sgl[i].iov_len)) { 6989 error = -EFAULT; 6990 goto out; 6991 } 6992 } 6993 6994 /* 6995 * copy out the sense 6996 */ 6997 if (ioc->sense_len) { 6998 /* 6999 * sense_ptr points to the location that has the user 7000 * sense buffer address 7001 */ 7002 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + 7003 ioc->sense_off); 7004 7005 if (copy_to_user((void __user *)((unsigned long) 7006 get_unaligned((unsigned long *)sense_ptr)), 7007 sense, ioc->sense_len)) { 7008 dev_err(&instance->pdev->dev, "Failed to copy out to user " 7009 "sense data\n"); 7010 error = -EFAULT; 7011 goto out; 7012 } 7013 } 7014 7015 /* 7016 * copy the status codes returned by the fw 7017 */ 7018 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 7019 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 7020 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 7021 error = -EFAULT; 7022 } 7023 7024 out: 7025 if (sense) { 7026 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 7027 sense, sense_handle); 7028 } 7029 7030 for (i = 0; i < ioc->sge_count; i++) { 7031 if (kbuff_arr[i]) { 7032 dma_free_coherent(&instance->pdev->dev, 7033 le32_to_cpu(kern_sge32[i].length), 7034 kbuff_arr[i], 7035 le32_to_cpu(kern_sge32[i].phys_addr)); 7036 kbuff_arr[i] = NULL; 7037 } 7038 } 7039 7040 megasas_return_cmd(instance, cmd); 7041 return error; 7042 } 7043 7044 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 7045 { 7046 struct megasas_iocpacket __user *user_ioc = 7047 (struct megasas_iocpacket __user *)arg; 7048 struct megasas_iocpacket *ioc; 7049 struct megasas_instance *instance; 7050 int error; 7051 int i; 7052 unsigned long flags; 7053 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 7054 7055 ioc = memdup_user(user_ioc, sizeof(*ioc)); 7056 if (IS_ERR(ioc)) 7057 return PTR_ERR(ioc); 7058 7059 instance = megasas_lookup_instance(ioc->host_no); 7060 if (!instance) { 7061 error = -ENODEV; 7062 goto out_kfree_ioc; 7063 } 7064 7065 /* Adjust ioctl wait time for VF mode */ 7066 if (instance->requestorId) 7067 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF; 7068 7069 /* Block ioctls in VF mode */ 7070 if (instance->requestorId && !allow_vf_ioctls) { 7071 error = -ENODEV; 7072 goto out_kfree_ioc; 7073 } 7074 7075 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 7076 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 7077 error = -ENODEV; 7078 goto out_kfree_ioc; 7079 } 7080 7081 if (instance->unload == 1) { 7082 error = -ENODEV; 7083 goto out_kfree_ioc; 7084 } 7085 7086 if (down_interruptible(&instance->ioctl_sem)) { 7087 error = -ERESTARTSYS; 7088 goto out_kfree_ioc; 7089 } 7090 7091 for (i = 0; i < wait_time; i++) { 7092 7093 spin_lock_irqsave(&instance->hba_lock, flags); 7094 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) { 7095 spin_unlock_irqrestore(&instance->hba_lock, flags); 7096 break; 7097 } 7098 spin_unlock_irqrestore(&instance->hba_lock, flags); 7099 7100 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 7101 dev_notice(&instance->pdev->dev, "waiting" 7102 "for controller reset to finish\n"); 7103 } 7104 7105 msleep(1000); 7106 } 7107 7108 spin_lock_irqsave(&instance->hba_lock, flags); 7109 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 7110 spin_unlock_irqrestore(&instance->hba_lock, flags); 7111 7112 dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n"); 7113 error = -ENODEV; 7114 goto out_up; 7115 } 7116 spin_unlock_irqrestore(&instance->hba_lock, flags); 7117 7118 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 7119 out_up: 7120 up(&instance->ioctl_sem); 7121 7122 out_kfree_ioc: 7123 kfree(ioc); 7124 return error; 7125 } 7126 7127 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 7128 { 7129 struct megasas_instance *instance; 7130 struct megasas_aen aen; 7131 int error; 7132 int i; 7133 unsigned long flags; 7134 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 7135 7136 if (file->private_data != file) { 7137 printk(KERN_DEBUG "megasas: fasync_helper was not " 7138 "called first\n"); 7139 return -EINVAL; 7140 } 7141 7142 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 7143 return -EFAULT; 7144 7145 instance = megasas_lookup_instance(aen.host_no); 7146 7147 if (!instance) 7148 return -ENODEV; 7149 7150 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 7151 return -ENODEV; 7152 } 7153 7154 if (instance->unload == 1) { 7155 return -ENODEV; 7156 } 7157 7158 for (i = 0; i < wait_time; i++) { 7159 7160 spin_lock_irqsave(&instance->hba_lock, flags); 7161 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) { 7162 spin_unlock_irqrestore(&instance->hba_lock, 7163 flags); 7164 break; 7165 } 7166 7167 spin_unlock_irqrestore(&instance->hba_lock, flags); 7168 7169 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 7170 dev_notice(&instance->pdev->dev, "waiting for" 7171 "controller reset to finish\n"); 7172 } 7173 7174 msleep(1000); 7175 } 7176 7177 spin_lock_irqsave(&instance->hba_lock, flags); 7178 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 7179 spin_unlock_irqrestore(&instance->hba_lock, flags); 7180 dev_err(&instance->pdev->dev, "timed out while waiting for HBA to recover\n"); 7181 return -ENODEV; 7182 } 7183 spin_unlock_irqrestore(&instance->hba_lock, flags); 7184 7185 mutex_lock(&instance->reset_mutex); 7186 error = megasas_register_aen(instance, aen.seq_num, 7187 aen.class_locale_word); 7188 mutex_unlock(&instance->reset_mutex); 7189 return error; 7190 } 7191 7192 /** 7193 * megasas_mgmt_ioctl - char node ioctl entry point 7194 */ 7195 static long 7196 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 7197 { 7198 switch (cmd) { 7199 case MEGASAS_IOC_FIRMWARE: 7200 return megasas_mgmt_ioctl_fw(file, arg); 7201 7202 case MEGASAS_IOC_GET_AEN: 7203 return megasas_mgmt_ioctl_aen(file, arg); 7204 } 7205 7206 return -ENOTTY; 7207 } 7208 7209 #ifdef CONFIG_COMPAT 7210 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) 7211 { 7212 struct compat_megasas_iocpacket __user *cioc = 7213 (struct compat_megasas_iocpacket __user *)arg; 7214 struct megasas_iocpacket __user *ioc = 7215 compat_alloc_user_space(sizeof(struct megasas_iocpacket)); 7216 int i; 7217 int error = 0; 7218 compat_uptr_t ptr; 7219 u32 local_sense_off; 7220 u32 local_sense_len; 7221 u32 user_sense_off; 7222 7223 if (clear_user(ioc, sizeof(*ioc))) 7224 return -EFAULT; 7225 7226 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || 7227 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || 7228 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || 7229 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || 7230 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || 7231 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) 7232 return -EFAULT; 7233 7234 /* 7235 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when 7236 * sense_len is not null, so prepare the 64bit value under 7237 * the same condition. 7238 */ 7239 if (get_user(local_sense_off, &ioc->sense_off) || 7240 get_user(local_sense_len, &ioc->sense_len) || 7241 get_user(user_sense_off, &cioc->sense_off)) 7242 return -EFAULT; 7243 7244 if (local_sense_len) { 7245 void __user **sense_ioc_ptr = 7246 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); 7247 compat_uptr_t *sense_cioc_ptr = 7248 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); 7249 if (get_user(ptr, sense_cioc_ptr) || 7250 put_user(compat_ptr(ptr), sense_ioc_ptr)) 7251 return -EFAULT; 7252 } 7253 7254 for (i = 0; i < MAX_IOCTL_SGE; i++) { 7255 if (get_user(ptr, &cioc->sgl[i].iov_base) || 7256 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || 7257 copy_in_user(&ioc->sgl[i].iov_len, 7258 &cioc->sgl[i].iov_len, sizeof(compat_size_t))) 7259 return -EFAULT; 7260 } 7261 7262 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); 7263 7264 if (copy_in_user(&cioc->frame.hdr.cmd_status, 7265 &ioc->frame.hdr.cmd_status, sizeof(u8))) { 7266 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); 7267 return -EFAULT; 7268 } 7269 return error; 7270 } 7271 7272 static long 7273 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 7274 unsigned long arg) 7275 { 7276 switch (cmd) { 7277 case MEGASAS_IOC_FIRMWARE32: 7278 return megasas_mgmt_compat_ioctl_fw(file, arg); 7279 case MEGASAS_IOC_GET_AEN: 7280 return megasas_mgmt_ioctl_aen(file, arg); 7281 } 7282 7283 return -ENOTTY; 7284 } 7285 #endif 7286 7287 /* 7288 * File operations structure for management interface 7289 */ 7290 static const struct file_operations megasas_mgmt_fops = { 7291 .owner = THIS_MODULE, 7292 .open = megasas_mgmt_open, 7293 .fasync = megasas_mgmt_fasync, 7294 .unlocked_ioctl = megasas_mgmt_ioctl, 7295 .poll = megasas_mgmt_poll, 7296 #ifdef CONFIG_COMPAT 7297 .compat_ioctl = megasas_mgmt_compat_ioctl, 7298 #endif 7299 .llseek = noop_llseek, 7300 }; 7301 7302 /* 7303 * PCI hotplug support registration structure 7304 */ 7305 static struct pci_driver megasas_pci_driver = { 7306 7307 .name = "megaraid_sas", 7308 .id_table = megasas_pci_table, 7309 .probe = megasas_probe_one, 7310 .remove = megasas_detach_one, 7311 .suspend = megasas_suspend, 7312 .resume = megasas_resume, 7313 .shutdown = megasas_shutdown, 7314 }; 7315 7316 /* 7317 * Sysfs driver attributes 7318 */ 7319 static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf) 7320 { 7321 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 7322 MEGASAS_VERSION); 7323 } 7324 7325 static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL); 7326 7327 static ssize_t 7328 megasas_sysfs_show_release_date(struct device_driver *dd, char *buf) 7329 { 7330 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 7331 MEGASAS_RELDATE); 7332 } 7333 7334 static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL); 7335 7336 static ssize_t 7337 megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) 7338 { 7339 return sprintf(buf, "%u\n", support_poll_for_event); 7340 } 7341 7342 static DRIVER_ATTR(support_poll_for_event, S_IRUGO, 7343 megasas_sysfs_show_support_poll_for_event, NULL); 7344 7345 static ssize_t 7346 megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf) 7347 { 7348 return sprintf(buf, "%u\n", support_device_change); 7349 } 7350 7351 static DRIVER_ATTR(support_device_change, S_IRUGO, 7352 megasas_sysfs_show_support_device_change, NULL); 7353 7354 static ssize_t 7355 megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) 7356 { 7357 return sprintf(buf, "%u\n", megasas_dbg_lvl); 7358 } 7359 7360 static ssize_t 7361 megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count) 7362 { 7363 int retval = count; 7364 7365 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 7366 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 7367 retval = -EINVAL; 7368 } 7369 return retval; 7370 } 7371 7372 static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, megasas_sysfs_show_dbg_lvl, 7373 megasas_sysfs_set_dbg_lvl); 7374 7375 static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 7376 { 7377 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 7378 scsi_remove_device(sdev); 7379 scsi_device_put(sdev); 7380 } 7381 7382 static void 7383 megasas_aen_polling(struct work_struct *work) 7384 { 7385 struct megasas_aen_event *ev = 7386 container_of(work, struct megasas_aen_event, hotplug_work.work); 7387 struct megasas_instance *instance = ev->instance; 7388 union megasas_evt_class_locale class_locale; 7389 struct Scsi_Host *host; 7390 struct scsi_device *sdev1; 7391 u16 pd_index = 0; 7392 u16 ld_index = 0; 7393 int i, j, doscan = 0; 7394 u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME; 7395 int error; 7396 u8 dcmd_ret = DCMD_SUCCESS; 7397 7398 if (!instance) { 7399 printk(KERN_ERR "invalid instance!\n"); 7400 kfree(ev); 7401 return; 7402 } 7403 7404 /* Adjust event workqueue thread wait time for VF mode */ 7405 if (instance->requestorId) 7406 wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF; 7407 7408 /* Don't run the event workqueue thread if OCR is running */ 7409 mutex_lock(&instance->reset_mutex); 7410 7411 instance->ev = NULL; 7412 host = instance->host; 7413 if (instance->evt_detail) { 7414 megasas_decode_evt(instance); 7415 7416 switch (le32_to_cpu(instance->evt_detail->code)) { 7417 7418 case MR_EVT_PD_INSERTED: 7419 case MR_EVT_PD_REMOVED: 7420 dcmd_ret = megasas_get_pd_list(instance); 7421 if (dcmd_ret == DCMD_SUCCESS) 7422 doscan = SCAN_PD_CHANNEL; 7423 break; 7424 7425 case MR_EVT_LD_OFFLINE: 7426 case MR_EVT_CFG_CLEARED: 7427 case MR_EVT_LD_DELETED: 7428 case MR_EVT_LD_CREATED: 7429 if (!instance->requestorId || 7430 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0))) 7431 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 7432 7433 if (dcmd_ret == DCMD_SUCCESS) 7434 doscan = SCAN_VD_CHANNEL; 7435 7436 break; 7437 7438 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 7439 case MR_EVT_FOREIGN_CFG_IMPORTED: 7440 case MR_EVT_LD_STATE_CHANGE: 7441 dcmd_ret = megasas_get_pd_list(instance); 7442 7443 if (dcmd_ret != DCMD_SUCCESS) 7444 break; 7445 7446 if (!instance->requestorId || 7447 (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0))) 7448 dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 7449 7450 if (dcmd_ret != DCMD_SUCCESS) 7451 break; 7452 7453 doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL; 7454 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 7455 instance->host->host_no); 7456 break; 7457 7458 case MR_EVT_CTRL_PROP_CHANGED: 7459 dcmd_ret = megasas_get_ctrl_info(instance); 7460 break; 7461 default: 7462 doscan = 0; 7463 break; 7464 } 7465 } else { 7466 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 7467 mutex_unlock(&instance->reset_mutex); 7468 kfree(ev); 7469 return; 7470 } 7471 7472 mutex_unlock(&instance->reset_mutex); 7473 7474 if (doscan & SCAN_PD_CHANNEL) { 7475 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 7476 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 7477 pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j; 7478 sdev1 = scsi_device_lookup(host, i, j, 0); 7479 if (instance->pd_list[pd_index].driveState == 7480 MR_PD_STATE_SYSTEM) { 7481 if (!sdev1) 7482 scsi_add_device(host, i, j, 0); 7483 else 7484 scsi_device_put(sdev1); 7485 } else { 7486 if (sdev1) 7487 megasas_remove_scsi_device(sdev1); 7488 } 7489 } 7490 } 7491 } 7492 7493 if (doscan & SCAN_VD_CHANNEL) { 7494 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 7495 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 7496 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 7497 sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 7498 if (instance->ld_ids[ld_index] != 0xff) { 7499 if (!sdev1) 7500 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 7501 else 7502 scsi_device_put(sdev1); 7503 } else { 7504 if (sdev1) 7505 megasas_remove_scsi_device(sdev1); 7506 } 7507 } 7508 } 7509 } 7510 7511 if (dcmd_ret == DCMD_SUCCESS) 7512 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 7513 else 7514 seq_num = instance->last_seq_num; 7515 7516 /* Register AEN with FW for latest sequence number plus 1 */ 7517 class_locale.members.reserved = 0; 7518 class_locale.members.locale = MR_EVT_LOCALE_ALL; 7519 class_locale.members.class = MR_EVT_CLASS_DEBUG; 7520 7521 if (instance->aen_cmd != NULL) { 7522 kfree(ev); 7523 return; 7524 } 7525 7526 mutex_lock(&instance->reset_mutex); 7527 error = megasas_register_aen(instance, seq_num, 7528 class_locale.word); 7529 if (error) 7530 dev_err(&instance->pdev->dev, 7531 "register aen failed error %x\n", error); 7532 7533 mutex_unlock(&instance->reset_mutex); 7534 kfree(ev); 7535 } 7536 7537 /** 7538 * megasas_init - Driver load entry point 7539 */ 7540 static int __init megasas_init(void) 7541 { 7542 int rval; 7543 7544 /* 7545 * Booted in kdump kernel, minimize memory footprints by 7546 * disabling few features 7547 */ 7548 if (reset_devices) { 7549 msix_vectors = 1; 7550 rdpq_enable = 0; 7551 dual_qdepth_disable = 1; 7552 } 7553 7554 /* 7555 * Announce driver version and other information 7556 */ 7557 pr_info("megasas: %s\n", MEGASAS_VERSION); 7558 7559 spin_lock_init(&poll_aen_lock); 7560 7561 support_poll_for_event = 2; 7562 support_device_change = 1; 7563 7564 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 7565 7566 /* 7567 * Register character device node 7568 */ 7569 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 7570 7571 if (rval < 0) { 7572 printk(KERN_DEBUG "megasas: failed to open device node\n"); 7573 return rval; 7574 } 7575 7576 megasas_mgmt_majorno = rval; 7577 7578 /* 7579 * Register ourselves as PCI hotplug module 7580 */ 7581 rval = pci_register_driver(&megasas_pci_driver); 7582 7583 if (rval) { 7584 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 7585 goto err_pcidrv; 7586 } 7587 7588 rval = driver_create_file(&megasas_pci_driver.driver, 7589 &driver_attr_version); 7590 if (rval) 7591 goto err_dcf_attr_ver; 7592 7593 rval = driver_create_file(&megasas_pci_driver.driver, 7594 &driver_attr_release_date); 7595 if (rval) 7596 goto err_dcf_rel_date; 7597 7598 rval = driver_create_file(&megasas_pci_driver.driver, 7599 &driver_attr_support_poll_for_event); 7600 if (rval) 7601 goto err_dcf_support_poll_for_event; 7602 7603 rval = driver_create_file(&megasas_pci_driver.driver, 7604 &driver_attr_dbg_lvl); 7605 if (rval) 7606 goto err_dcf_dbg_lvl; 7607 rval = driver_create_file(&megasas_pci_driver.driver, 7608 &driver_attr_support_device_change); 7609 if (rval) 7610 goto err_dcf_support_device_change; 7611 7612 return rval; 7613 7614 err_dcf_support_device_change: 7615 driver_remove_file(&megasas_pci_driver.driver, 7616 &driver_attr_dbg_lvl); 7617 err_dcf_dbg_lvl: 7618 driver_remove_file(&megasas_pci_driver.driver, 7619 &driver_attr_support_poll_for_event); 7620 err_dcf_support_poll_for_event: 7621 driver_remove_file(&megasas_pci_driver.driver, 7622 &driver_attr_release_date); 7623 err_dcf_rel_date: 7624 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 7625 err_dcf_attr_ver: 7626 pci_unregister_driver(&megasas_pci_driver); 7627 err_pcidrv: 7628 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 7629 return rval; 7630 } 7631 7632 /** 7633 * megasas_exit - Driver unload entry point 7634 */ 7635 static void __exit megasas_exit(void) 7636 { 7637 driver_remove_file(&megasas_pci_driver.driver, 7638 &driver_attr_dbg_lvl); 7639 driver_remove_file(&megasas_pci_driver.driver, 7640 &driver_attr_support_poll_for_event); 7641 driver_remove_file(&megasas_pci_driver.driver, 7642 &driver_attr_support_device_change); 7643 driver_remove_file(&megasas_pci_driver.driver, 7644 &driver_attr_release_date); 7645 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 7646 7647 pci_unregister_driver(&megasas_pci_driver); 7648 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 7649 } 7650 7651 module_init(megasas_init); 7652 module_exit(megasas_exit); 7653