1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Linux MegaRAID driver for SAS based RAID controllers 4 * 5 * Copyright (c) 2003-2013 LSI Corporation 6 * Copyright (c) 2013-2016 Avago Technologies 7 * Copyright (c) 2016-2018 Broadcom Inc. 8 * 9 * Authors: Broadcom Inc. 10 * Sreenivas Bagalkote 11 * Sumant Patro 12 * Bo Yang 13 * Adam Radford 14 * Kashyap Desai <kashyap.desai@broadcom.com> 15 * Sumit Saxena <sumit.saxena@broadcom.com> 16 * 17 * Send feedback to: megaraidlinux.pdl@broadcom.com 18 */ 19 20 #include <linux/kernel.h> 21 #include <linux/types.h> 22 #include <linux/pci.h> 23 #include <linux/list.h> 24 #include <linux/moduleparam.h> 25 #include <linux/module.h> 26 #include <linux/spinlock.h> 27 #include <linux/interrupt.h> 28 #include <linux/delay.h> 29 #include <linux/uio.h> 30 #include <linux/slab.h> 31 #include <linux/uaccess.h> 32 #include <asm/unaligned.h> 33 #include <linux/fs.h> 34 #include <linux/compat.h> 35 #include <linux/blkdev.h> 36 #include <linux/mutex.h> 37 #include <linux/poll.h> 38 #include <linux/vmalloc.h> 39 #include <linux/irq_poll.h> 40 #include <linux/blk-mq-pci.h> 41 42 #include <scsi/scsi.h> 43 #include <scsi/scsi_cmnd.h> 44 #include <scsi/scsi_device.h> 45 #include <scsi/scsi_host.h> 46 #include <scsi/scsi_tcq.h> 47 #include <scsi/scsi_dbg.h> 48 #include "megaraid_sas_fusion.h" 49 #include "megaraid_sas.h" 50 51 /* 52 * Number of sectors per IO command 53 * Will be set in megasas_init_mfi if user does not provide 54 */ 55 static unsigned int max_sectors; 56 module_param_named(max_sectors, max_sectors, int, 0444); 57 MODULE_PARM_DESC(max_sectors, 58 "Maximum number of sectors per IO command"); 59 60 static int msix_disable; 61 module_param(msix_disable, int, 0444); 62 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); 63 64 static unsigned int msix_vectors; 65 module_param(msix_vectors, int, 0444); 66 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); 67 68 static int allow_vf_ioctls; 69 module_param(allow_vf_ioctls, int, 0444); 70 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); 71 72 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; 73 module_param(throttlequeuedepth, int, 0444); 74 MODULE_PARM_DESC(throttlequeuedepth, 75 "Adapter queue depth when throttled due to I/O timeout. Default: 16"); 76 77 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; 78 module_param(resetwaittime, int, 0444); 79 MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s"); 80 81 static int smp_affinity_enable = 1; 82 module_param(smp_affinity_enable, int, 0444); 83 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)"); 84 85 static int rdpq_enable = 1; 86 module_param(rdpq_enable, int, 0444); 87 MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)"); 88 89 unsigned int dual_qdepth_disable; 90 module_param(dual_qdepth_disable, int, 0444); 91 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); 92 93 static unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 94 module_param(scmd_timeout, int, 0444); 95 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); 96 97 int perf_mode = -1; 98 module_param(perf_mode, int, 0444); 99 MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t" 100 "0 - balanced: High iops and low latency queues are allocated &\n\t\t" 101 "interrupt coalescing is enabled only on high iops queues\n\t\t" 102 "1 - iops: High iops queues are not allocated &\n\t\t" 103 "interrupt coalescing is enabled on all queues\n\t\t" 104 "2 - latency: High iops queues are not allocated &\n\t\t" 105 "interrupt coalescing is disabled on all queues\n\t\t" 106 "default mode is 'balanced'" 107 ); 108 109 int event_log_level = MFI_EVT_CLASS_CRITICAL; 110 module_param(event_log_level, int, 0644); 111 MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)"); 112 113 unsigned int enable_sdev_max_qd; 114 module_param(enable_sdev_max_qd, int, 0444); 115 MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0"); 116 117 int poll_queues; 118 module_param(poll_queues, int, 0444); 119 MODULE_PARM_DESC(poll_queues, "Number of queues to be use for io_uring poll mode.\n\t\t" 120 "This parameter is effective only if host_tagset_enable=1 &\n\t\t" 121 "It is not applicable for MFI_SERIES. &\n\t\t" 122 "Driver will work in latency mode. &\n\t\t" 123 "High iops queues are not allocated &\n\t\t" 124 ); 125 126 int host_tagset_enable = 1; 127 module_param(host_tagset_enable, int, 0444); 128 MODULE_PARM_DESC(host_tagset_enable, "Shared host tagset enable/disable Default: enable(1)"); 129 130 MODULE_LICENSE("GPL"); 131 MODULE_VERSION(MEGASAS_VERSION); 132 MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com"); 133 MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver"); 134 135 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); 136 static int megasas_get_pd_list(struct megasas_instance *instance); 137 static int megasas_ld_list_query(struct megasas_instance *instance, 138 u8 query_type); 139 static int megasas_issue_init_mfi(struct megasas_instance *instance); 140 static int megasas_register_aen(struct megasas_instance *instance, 141 u32 seq_num, u32 class_locale_word); 142 static void megasas_get_pd_info(struct megasas_instance *instance, 143 struct scsi_device *sdev); 144 static void 145 megasas_set_ld_removed_by_fw(struct megasas_instance *instance); 146 147 /* 148 * PCI ID table for all supported controllers 149 */ 150 static struct pci_device_id megasas_pci_table[] = { 151 152 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, 153 /* xscale IOP */ 154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, 155 /* ppc IOP */ 156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, 157 /* ppc IOP */ 158 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, 159 /* gen2*/ 160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, 161 /* gen2*/ 162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, 163 /* skinny*/ 164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, 165 /* skinny*/ 166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, 167 /* xscale IOP, vega */ 168 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, 169 /* xscale IOP */ 170 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, 171 /* Fusion */ 172 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, 173 /* Plasma */ 174 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, 175 /* Invader */ 176 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, 177 /* Fury */ 178 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, 179 /* Intruder */ 180 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, 181 /* Intruder 24 port*/ 182 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, 183 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, 184 /* VENTURA */ 185 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)}, 186 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)}, 187 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)}, 188 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)}, 189 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)}, 190 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)}, 191 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)}, 192 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)}, 193 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)}, 194 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)}, 195 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)}, 196 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)}, 197 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)}, 198 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)}, 199 {} 200 }; 201 202 MODULE_DEVICE_TABLE(pci, megasas_pci_table); 203 204 static int megasas_mgmt_majorno; 205 struct megasas_mgmt_info megasas_mgmt_info; 206 static struct fasync_struct *megasas_async_queue; 207 static DEFINE_MUTEX(megasas_async_queue_mutex); 208 209 static int megasas_poll_wait_aen; 210 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); 211 static u32 support_poll_for_event; 212 u32 megasas_dbg_lvl; 213 static u32 support_device_change; 214 static bool support_nvme_encapsulation; 215 static bool support_pci_lane_margining; 216 217 /* define lock for aen poll */ 218 static DEFINE_SPINLOCK(poll_aen_lock); 219 220 extern struct dentry *megasas_debugfs_root; 221 extern int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num); 222 223 void 224 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 225 u8 alt_status); 226 static u32 227 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance); 228 static int 229 megasas_adp_reset_gen2(struct megasas_instance *instance, 230 struct megasas_register_set __iomem *reg_set); 231 static irqreturn_t megasas_isr(int irq, void *devp); 232 static u32 233 megasas_init_adapter_mfi(struct megasas_instance *instance); 234 u32 235 megasas_build_and_issue_cmd(struct megasas_instance *instance, 236 struct scsi_cmnd *scmd); 237 static void megasas_complete_cmd_dpc(unsigned long instance_addr); 238 int 239 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, 240 int seconds); 241 void megasas_fusion_ocr_wq(struct work_struct *work); 242 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 243 int initial); 244 static int 245 megasas_set_dma_mask(struct megasas_instance *instance); 246 static int 247 megasas_alloc_ctrl_mem(struct megasas_instance *instance); 248 static inline void 249 megasas_free_ctrl_mem(struct megasas_instance *instance); 250 static inline int 251 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance); 252 static inline void 253 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance); 254 static inline void 255 megasas_init_ctrl_params(struct megasas_instance *instance); 256 257 u32 megasas_readl(struct megasas_instance *instance, 258 const volatile void __iomem *addr) 259 { 260 u32 i = 0, ret_val; 261 /* 262 * Due to a HW errata in Aero controllers, reads to certain 263 * Fusion registers could intermittently return all zeroes. 264 * This behavior is transient in nature and subsequent reads will 265 * return valid value. As a workaround in driver, retry readl for 266 * upto three times until a non-zero value is read. 267 */ 268 if (instance->adapter_type == AERO_SERIES) { 269 do { 270 ret_val = readl(addr); 271 i++; 272 } while (ret_val == 0 && i < 3); 273 return ret_val; 274 } else { 275 return readl(addr); 276 } 277 } 278 279 /** 280 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs 281 * @instance: Adapter soft state 282 * @dcmd: DCMD frame inside MFI command 283 * @dma_addr: DMA address of buffer to be passed to FW 284 * @dma_len: Length of DMA buffer to be passed to FW 285 * @return: void 286 */ 287 void megasas_set_dma_settings(struct megasas_instance *instance, 288 struct megasas_dcmd_frame *dcmd, 289 dma_addr_t dma_addr, u32 dma_len) 290 { 291 if (instance->consistent_mask_64bit) { 292 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr); 293 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len); 294 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64); 295 296 } else { 297 dcmd->sgl.sge32[0].phys_addr = 298 cpu_to_le32(lower_32_bits(dma_addr)); 299 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len); 300 dcmd->flags = cpu_to_le16(dcmd->flags); 301 } 302 } 303 304 static void 305 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 306 { 307 instance->instancet->fire_cmd(instance, 308 cmd->frame_phys_addr, 0, instance->reg_set); 309 return; 310 } 311 312 /** 313 * megasas_get_cmd - Get a command from the free pool 314 * @instance: Adapter soft state 315 * 316 * Returns a free command from the pool 317 */ 318 struct megasas_cmd *megasas_get_cmd(struct megasas_instance 319 *instance) 320 { 321 unsigned long flags; 322 struct megasas_cmd *cmd = NULL; 323 324 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 325 326 if (!list_empty(&instance->cmd_pool)) { 327 cmd = list_entry((&instance->cmd_pool)->next, 328 struct megasas_cmd, list); 329 list_del_init(&cmd->list); 330 } else { 331 dev_err(&instance->pdev->dev, "Command pool empty!\n"); 332 } 333 334 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 335 return cmd; 336 } 337 338 /** 339 * megasas_return_cmd - Return a cmd to free command pool 340 * @instance: Adapter soft state 341 * @cmd: Command packet to be returned to free command pool 342 */ 343 void 344 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 345 { 346 unsigned long flags; 347 u32 blk_tags; 348 struct megasas_cmd_fusion *cmd_fusion; 349 struct fusion_context *fusion = instance->ctrl_context; 350 351 /* This flag is used only for fusion adapter. 352 * Wait for Interrupt for Polled mode DCMD 353 */ 354 if (cmd->flags & DRV_DCMD_POLLED_MODE) 355 return; 356 357 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 358 359 if (fusion) { 360 blk_tags = instance->max_scsi_cmds + cmd->index; 361 cmd_fusion = fusion->cmd_list[blk_tags]; 362 megasas_return_cmd_fusion(instance, cmd_fusion); 363 } 364 cmd->scmd = NULL; 365 cmd->frame_count = 0; 366 cmd->flags = 0; 367 memset(cmd->frame, 0, instance->mfi_frame_size); 368 cmd->frame->io.context = cpu_to_le32(cmd->index); 369 if (!fusion && reset_devices) 370 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 371 list_add(&cmd->list, (&instance->cmd_pool)->next); 372 373 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 374 375 } 376 377 static const char * 378 format_timestamp(uint32_t timestamp) 379 { 380 static char buffer[32]; 381 382 if ((timestamp & 0xff000000) == 0xff000000) 383 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 384 0x00ffffff); 385 else 386 snprintf(buffer, sizeof(buffer), "%us", timestamp); 387 return buffer; 388 } 389 390 static const char * 391 format_class(int8_t class) 392 { 393 static char buffer[6]; 394 395 switch (class) { 396 case MFI_EVT_CLASS_DEBUG: 397 return "debug"; 398 case MFI_EVT_CLASS_PROGRESS: 399 return "progress"; 400 case MFI_EVT_CLASS_INFO: 401 return "info"; 402 case MFI_EVT_CLASS_WARNING: 403 return "WARN"; 404 case MFI_EVT_CLASS_CRITICAL: 405 return "CRIT"; 406 case MFI_EVT_CLASS_FATAL: 407 return "FATAL"; 408 case MFI_EVT_CLASS_DEAD: 409 return "DEAD"; 410 default: 411 snprintf(buffer, sizeof(buffer), "%d", class); 412 return buffer; 413 } 414 } 415 416 /** 417 * megasas_decode_evt: Decode FW AEN event and print critical event 418 * for information. 419 * @instance: Adapter soft state 420 */ 421 static void 422 megasas_decode_evt(struct megasas_instance *instance) 423 { 424 struct megasas_evt_detail *evt_detail = instance->evt_detail; 425 union megasas_evt_class_locale class_locale; 426 class_locale.word = le32_to_cpu(evt_detail->cl.word); 427 428 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 429 (event_log_level > MFI_EVT_CLASS_DEAD)) { 430 printk(KERN_WARNING "megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n"); 431 event_log_level = MFI_EVT_CLASS_CRITICAL; 432 } 433 434 if (class_locale.members.class >= event_log_level) 435 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", 436 le32_to_cpu(evt_detail->seq_num), 437 format_timestamp(le32_to_cpu(evt_detail->time_stamp)), 438 (class_locale.members.locale), 439 format_class(class_locale.members.class), 440 evt_detail->description); 441 442 if (megasas_dbg_lvl & LD_PD_DEBUG) 443 dev_info(&instance->pdev->dev, 444 "evt_detail.args.ld.target_id/index %d/%d\n", 445 evt_detail->args.ld.target_id, evt_detail->args.ld.ld_index); 446 447 } 448 449 /* 450 * The following functions are defined for xscale 451 * (deviceid : 1064R, PERC5) controllers 452 */ 453 454 /** 455 * megasas_enable_intr_xscale - Enables interrupts 456 * @instance: Adapter soft state 457 */ 458 static inline void 459 megasas_enable_intr_xscale(struct megasas_instance *instance) 460 { 461 struct megasas_register_set __iomem *regs; 462 463 regs = instance->reg_set; 464 writel(0, &(regs)->outbound_intr_mask); 465 466 /* Dummy readl to force pci flush */ 467 readl(®s->outbound_intr_mask); 468 } 469 470 /** 471 * megasas_disable_intr_xscale -Disables interrupt 472 * @instance: Adapter soft state 473 */ 474 static inline void 475 megasas_disable_intr_xscale(struct megasas_instance *instance) 476 { 477 struct megasas_register_set __iomem *regs; 478 u32 mask = 0x1f; 479 480 regs = instance->reg_set; 481 writel(mask, ®s->outbound_intr_mask); 482 /* Dummy readl to force pci flush */ 483 readl(®s->outbound_intr_mask); 484 } 485 486 /** 487 * megasas_read_fw_status_reg_xscale - returns the current FW status value 488 * @instance: Adapter soft state 489 */ 490 static u32 491 megasas_read_fw_status_reg_xscale(struct megasas_instance *instance) 492 { 493 return readl(&instance->reg_set->outbound_msg_0); 494 } 495 /** 496 * megasas_clear_intr_xscale - Check & clear interrupt 497 * @instance: Adapter soft state 498 */ 499 static int 500 megasas_clear_intr_xscale(struct megasas_instance *instance) 501 { 502 u32 status; 503 u32 mfiStatus = 0; 504 struct megasas_register_set __iomem *regs; 505 regs = instance->reg_set; 506 507 /* 508 * Check if it is our interrupt 509 */ 510 status = readl(®s->outbound_intr_status); 511 512 if (status & MFI_OB_INTR_STATUS_MASK) 513 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 514 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) 515 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 516 517 /* 518 * Clear the interrupt by writing back the same value 519 */ 520 if (mfiStatus) 521 writel(status, ®s->outbound_intr_status); 522 523 /* Dummy readl to force pci flush */ 524 readl(®s->outbound_intr_status); 525 526 return mfiStatus; 527 } 528 529 /** 530 * megasas_fire_cmd_xscale - Sends command to the FW 531 * @instance: Adapter soft state 532 * @frame_phys_addr : Physical address of cmd 533 * @frame_count : Number of frames for the command 534 * @regs : MFI register set 535 */ 536 static inline void 537 megasas_fire_cmd_xscale(struct megasas_instance *instance, 538 dma_addr_t frame_phys_addr, 539 u32 frame_count, 540 struct megasas_register_set __iomem *regs) 541 { 542 unsigned long flags; 543 544 spin_lock_irqsave(&instance->hba_lock, flags); 545 writel((frame_phys_addr >> 3)|(frame_count), 546 &(regs)->inbound_queue_port); 547 spin_unlock_irqrestore(&instance->hba_lock, flags); 548 } 549 550 /** 551 * megasas_adp_reset_xscale - For controller reset 552 * @instance: Adapter soft state 553 * @regs: MFI register set 554 */ 555 static int 556 megasas_adp_reset_xscale(struct megasas_instance *instance, 557 struct megasas_register_set __iomem *regs) 558 { 559 u32 i; 560 u32 pcidata; 561 562 writel(MFI_ADP_RESET, ®s->inbound_doorbell); 563 564 for (i = 0; i < 3; i++) 565 msleep(1000); /* sleep for 3 secs */ 566 pcidata = 0; 567 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); 568 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); 569 if (pcidata & 0x2) { 570 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); 571 pcidata &= ~0x2; 572 pci_write_config_dword(instance->pdev, 573 MFI_1068_PCSR_OFFSET, pcidata); 574 575 for (i = 0; i < 2; i++) 576 msleep(1000); /* need to wait 2 secs again */ 577 578 pcidata = 0; 579 pci_read_config_dword(instance->pdev, 580 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); 581 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); 582 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { 583 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); 584 pcidata = 0; 585 pci_write_config_dword(instance->pdev, 586 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); 587 } 588 } 589 return 0; 590 } 591 592 /** 593 * megasas_check_reset_xscale - For controller reset check 594 * @instance: Adapter soft state 595 * @regs: MFI register set 596 */ 597 static int 598 megasas_check_reset_xscale(struct megasas_instance *instance, 599 struct megasas_register_set __iomem *regs) 600 { 601 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && 602 (le32_to_cpu(*instance->consumer) == 603 MEGASAS_ADPRESET_INPROG_SIGN)) 604 return 1; 605 return 0; 606 } 607 608 static struct megasas_instance_template megasas_instance_template_xscale = { 609 610 .fire_cmd = megasas_fire_cmd_xscale, 611 .enable_intr = megasas_enable_intr_xscale, 612 .disable_intr = megasas_disable_intr_xscale, 613 .clear_intr = megasas_clear_intr_xscale, 614 .read_fw_status_reg = megasas_read_fw_status_reg_xscale, 615 .adp_reset = megasas_adp_reset_xscale, 616 .check_reset = megasas_check_reset_xscale, 617 .service_isr = megasas_isr, 618 .tasklet = megasas_complete_cmd_dpc, 619 .init_adapter = megasas_init_adapter_mfi, 620 .build_and_issue_cmd = megasas_build_and_issue_cmd, 621 .issue_dcmd = megasas_issue_dcmd, 622 }; 623 624 /* 625 * This is the end of set of functions & definitions specific 626 * to xscale (deviceid : 1064R, PERC5) controllers 627 */ 628 629 /* 630 * The following functions are defined for ppc (deviceid : 0x60) 631 * controllers 632 */ 633 634 /** 635 * megasas_enable_intr_ppc - Enables interrupts 636 * @instance: Adapter soft state 637 */ 638 static inline void 639 megasas_enable_intr_ppc(struct megasas_instance *instance) 640 { 641 struct megasas_register_set __iomem *regs; 642 643 regs = instance->reg_set; 644 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 645 646 writel(~0x80000000, &(regs)->outbound_intr_mask); 647 648 /* Dummy readl to force pci flush */ 649 readl(®s->outbound_intr_mask); 650 } 651 652 /** 653 * megasas_disable_intr_ppc - Disable interrupt 654 * @instance: Adapter soft state 655 */ 656 static inline void 657 megasas_disable_intr_ppc(struct megasas_instance *instance) 658 { 659 struct megasas_register_set __iomem *regs; 660 u32 mask = 0xFFFFFFFF; 661 662 regs = instance->reg_set; 663 writel(mask, ®s->outbound_intr_mask); 664 /* Dummy readl to force pci flush */ 665 readl(®s->outbound_intr_mask); 666 } 667 668 /** 669 * megasas_read_fw_status_reg_ppc - returns the current FW status value 670 * @instance: Adapter soft state 671 */ 672 static u32 673 megasas_read_fw_status_reg_ppc(struct megasas_instance *instance) 674 { 675 return readl(&instance->reg_set->outbound_scratch_pad_0); 676 } 677 678 /** 679 * megasas_clear_intr_ppc - Check & clear interrupt 680 * @instance: Adapter soft state 681 */ 682 static int 683 megasas_clear_intr_ppc(struct megasas_instance *instance) 684 { 685 u32 status, mfiStatus = 0; 686 struct megasas_register_set __iomem *regs; 687 regs = instance->reg_set; 688 689 /* 690 * Check if it is our interrupt 691 */ 692 status = readl(®s->outbound_intr_status); 693 694 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) 695 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 696 697 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) 698 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 699 700 /* 701 * Clear the interrupt by writing back the same value 702 */ 703 writel(status, ®s->outbound_doorbell_clear); 704 705 /* Dummy readl to force pci flush */ 706 readl(®s->outbound_doorbell_clear); 707 708 return mfiStatus; 709 } 710 711 /** 712 * megasas_fire_cmd_ppc - Sends command to the FW 713 * @instance: Adapter soft state 714 * @frame_phys_addr: Physical address of cmd 715 * @frame_count: Number of frames for the command 716 * @regs: MFI register set 717 */ 718 static inline void 719 megasas_fire_cmd_ppc(struct megasas_instance *instance, 720 dma_addr_t frame_phys_addr, 721 u32 frame_count, 722 struct megasas_register_set __iomem *regs) 723 { 724 unsigned long flags; 725 726 spin_lock_irqsave(&instance->hba_lock, flags); 727 writel((frame_phys_addr | (frame_count<<1))|1, 728 &(regs)->inbound_queue_port); 729 spin_unlock_irqrestore(&instance->hba_lock, flags); 730 } 731 732 /** 733 * megasas_check_reset_ppc - For controller reset check 734 * @instance: Adapter soft state 735 * @regs: MFI register set 736 */ 737 static int 738 megasas_check_reset_ppc(struct megasas_instance *instance, 739 struct megasas_register_set __iomem *regs) 740 { 741 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 742 return 1; 743 744 return 0; 745 } 746 747 static struct megasas_instance_template megasas_instance_template_ppc = { 748 749 .fire_cmd = megasas_fire_cmd_ppc, 750 .enable_intr = megasas_enable_intr_ppc, 751 .disable_intr = megasas_disable_intr_ppc, 752 .clear_intr = megasas_clear_intr_ppc, 753 .read_fw_status_reg = megasas_read_fw_status_reg_ppc, 754 .adp_reset = megasas_adp_reset_xscale, 755 .check_reset = megasas_check_reset_ppc, 756 .service_isr = megasas_isr, 757 .tasklet = megasas_complete_cmd_dpc, 758 .init_adapter = megasas_init_adapter_mfi, 759 .build_and_issue_cmd = megasas_build_and_issue_cmd, 760 .issue_dcmd = megasas_issue_dcmd, 761 }; 762 763 /** 764 * megasas_enable_intr_skinny - Enables interrupts 765 * @instance: Adapter soft state 766 */ 767 static inline void 768 megasas_enable_intr_skinny(struct megasas_instance *instance) 769 { 770 struct megasas_register_set __iomem *regs; 771 772 regs = instance->reg_set; 773 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); 774 775 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 776 777 /* Dummy readl to force pci flush */ 778 readl(®s->outbound_intr_mask); 779 } 780 781 /** 782 * megasas_disable_intr_skinny - Disables interrupt 783 * @instance: Adapter soft state 784 */ 785 static inline void 786 megasas_disable_intr_skinny(struct megasas_instance *instance) 787 { 788 struct megasas_register_set __iomem *regs; 789 u32 mask = 0xFFFFFFFF; 790 791 regs = instance->reg_set; 792 writel(mask, ®s->outbound_intr_mask); 793 /* Dummy readl to force pci flush */ 794 readl(®s->outbound_intr_mask); 795 } 796 797 /** 798 * megasas_read_fw_status_reg_skinny - returns the current FW status value 799 * @instance: Adapter soft state 800 */ 801 static u32 802 megasas_read_fw_status_reg_skinny(struct megasas_instance *instance) 803 { 804 return readl(&instance->reg_set->outbound_scratch_pad_0); 805 } 806 807 /** 808 * megasas_clear_intr_skinny - Check & clear interrupt 809 * @instance: Adapter soft state 810 */ 811 static int 812 megasas_clear_intr_skinny(struct megasas_instance *instance) 813 { 814 u32 status; 815 u32 mfiStatus = 0; 816 struct megasas_register_set __iomem *regs; 817 regs = instance->reg_set; 818 819 /* 820 * Check if it is our interrupt 821 */ 822 status = readl(®s->outbound_intr_status); 823 824 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { 825 return 0; 826 } 827 828 /* 829 * Check if it is our interrupt 830 */ 831 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) == 832 MFI_STATE_FAULT) { 833 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 834 } else 835 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 836 837 /* 838 * Clear the interrupt by writing back the same value 839 */ 840 writel(status, ®s->outbound_intr_status); 841 842 /* 843 * dummy read to flush PCI 844 */ 845 readl(®s->outbound_intr_status); 846 847 return mfiStatus; 848 } 849 850 /** 851 * megasas_fire_cmd_skinny - Sends command to the FW 852 * @instance: Adapter soft state 853 * @frame_phys_addr: Physical address of cmd 854 * @frame_count: Number of frames for the command 855 * @regs: MFI register set 856 */ 857 static inline void 858 megasas_fire_cmd_skinny(struct megasas_instance *instance, 859 dma_addr_t frame_phys_addr, 860 u32 frame_count, 861 struct megasas_register_set __iomem *regs) 862 { 863 unsigned long flags; 864 865 spin_lock_irqsave(&instance->hba_lock, flags); 866 writel(upper_32_bits(frame_phys_addr), 867 &(regs)->inbound_high_queue_port); 868 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, 869 &(regs)->inbound_low_queue_port); 870 spin_unlock_irqrestore(&instance->hba_lock, flags); 871 } 872 873 /** 874 * megasas_check_reset_skinny - For controller reset check 875 * @instance: Adapter soft state 876 * @regs: MFI register set 877 */ 878 static int 879 megasas_check_reset_skinny(struct megasas_instance *instance, 880 struct megasas_register_set __iomem *regs) 881 { 882 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 883 return 1; 884 885 return 0; 886 } 887 888 static struct megasas_instance_template megasas_instance_template_skinny = { 889 890 .fire_cmd = megasas_fire_cmd_skinny, 891 .enable_intr = megasas_enable_intr_skinny, 892 .disable_intr = megasas_disable_intr_skinny, 893 .clear_intr = megasas_clear_intr_skinny, 894 .read_fw_status_reg = megasas_read_fw_status_reg_skinny, 895 .adp_reset = megasas_adp_reset_gen2, 896 .check_reset = megasas_check_reset_skinny, 897 .service_isr = megasas_isr, 898 .tasklet = megasas_complete_cmd_dpc, 899 .init_adapter = megasas_init_adapter_mfi, 900 .build_and_issue_cmd = megasas_build_and_issue_cmd, 901 .issue_dcmd = megasas_issue_dcmd, 902 }; 903 904 905 /* 906 * The following functions are defined for gen2 (deviceid : 0x78 0x79) 907 * controllers 908 */ 909 910 /** 911 * megasas_enable_intr_gen2 - Enables interrupts 912 * @instance: Adapter soft state 913 */ 914 static inline void 915 megasas_enable_intr_gen2(struct megasas_instance *instance) 916 { 917 struct megasas_register_set __iomem *regs; 918 919 regs = instance->reg_set; 920 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 921 922 /* write ~0x00000005 (4 & 1) to the intr mask*/ 923 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 924 925 /* Dummy readl to force pci flush */ 926 readl(®s->outbound_intr_mask); 927 } 928 929 /** 930 * megasas_disable_intr_gen2 - Disables interrupt 931 * @instance: Adapter soft state 932 */ 933 static inline void 934 megasas_disable_intr_gen2(struct megasas_instance *instance) 935 { 936 struct megasas_register_set __iomem *regs; 937 u32 mask = 0xFFFFFFFF; 938 939 regs = instance->reg_set; 940 writel(mask, ®s->outbound_intr_mask); 941 /* Dummy readl to force pci flush */ 942 readl(®s->outbound_intr_mask); 943 } 944 945 /** 946 * megasas_read_fw_status_reg_gen2 - returns the current FW status value 947 * @instance: Adapter soft state 948 */ 949 static u32 950 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance) 951 { 952 return readl(&instance->reg_set->outbound_scratch_pad_0); 953 } 954 955 /** 956 * megasas_clear_intr_gen2 - Check & clear interrupt 957 * @instance: Adapter soft state 958 */ 959 static int 960 megasas_clear_intr_gen2(struct megasas_instance *instance) 961 { 962 u32 status; 963 u32 mfiStatus = 0; 964 struct megasas_register_set __iomem *regs; 965 regs = instance->reg_set; 966 967 /* 968 * Check if it is our interrupt 969 */ 970 status = readl(®s->outbound_intr_status); 971 972 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { 973 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 974 } 975 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { 976 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 977 } 978 979 /* 980 * Clear the interrupt by writing back the same value 981 */ 982 if (mfiStatus) 983 writel(status, ®s->outbound_doorbell_clear); 984 985 /* Dummy readl to force pci flush */ 986 readl(®s->outbound_intr_status); 987 988 return mfiStatus; 989 } 990 991 /** 992 * megasas_fire_cmd_gen2 - Sends command to the FW 993 * @instance: Adapter soft state 994 * @frame_phys_addr: Physical address of cmd 995 * @frame_count: Number of frames for the command 996 * @regs: MFI register set 997 */ 998 static inline void 999 megasas_fire_cmd_gen2(struct megasas_instance *instance, 1000 dma_addr_t frame_phys_addr, 1001 u32 frame_count, 1002 struct megasas_register_set __iomem *regs) 1003 { 1004 unsigned long flags; 1005 1006 spin_lock_irqsave(&instance->hba_lock, flags); 1007 writel((frame_phys_addr | (frame_count<<1))|1, 1008 &(regs)->inbound_queue_port); 1009 spin_unlock_irqrestore(&instance->hba_lock, flags); 1010 } 1011 1012 /** 1013 * megasas_adp_reset_gen2 - For controller reset 1014 * @instance: Adapter soft state 1015 * @reg_set: MFI register set 1016 */ 1017 static int 1018 megasas_adp_reset_gen2(struct megasas_instance *instance, 1019 struct megasas_register_set __iomem *reg_set) 1020 { 1021 u32 retry = 0 ; 1022 u32 HostDiag; 1023 u32 __iomem *seq_offset = ®_set->seq_offset; 1024 u32 __iomem *hostdiag_offset = ®_set->host_diag; 1025 1026 if (instance->instancet == &megasas_instance_template_skinny) { 1027 seq_offset = ®_set->fusion_seq_offset; 1028 hostdiag_offset = ®_set->fusion_host_diag; 1029 } 1030 1031 writel(0, seq_offset); 1032 writel(4, seq_offset); 1033 writel(0xb, seq_offset); 1034 writel(2, seq_offset); 1035 writel(7, seq_offset); 1036 writel(0xd, seq_offset); 1037 1038 msleep(1000); 1039 1040 HostDiag = (u32)readl(hostdiag_offset); 1041 1042 while (!(HostDiag & DIAG_WRITE_ENABLE)) { 1043 msleep(100); 1044 HostDiag = (u32)readl(hostdiag_offset); 1045 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", 1046 retry, HostDiag); 1047 1048 if (retry++ >= 100) 1049 return 1; 1050 1051 } 1052 1053 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); 1054 1055 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); 1056 1057 ssleep(10); 1058 1059 HostDiag = (u32)readl(hostdiag_offset); 1060 while (HostDiag & DIAG_RESET_ADAPTER) { 1061 msleep(100); 1062 HostDiag = (u32)readl(hostdiag_offset); 1063 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", 1064 retry, HostDiag); 1065 1066 if (retry++ >= 1000) 1067 return 1; 1068 1069 } 1070 return 0; 1071 } 1072 1073 /** 1074 * megasas_check_reset_gen2 - For controller reset check 1075 * @instance: Adapter soft state 1076 * @regs: MFI register set 1077 */ 1078 static int 1079 megasas_check_reset_gen2(struct megasas_instance *instance, 1080 struct megasas_register_set __iomem *regs) 1081 { 1082 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1083 return 1; 1084 1085 return 0; 1086 } 1087 1088 static struct megasas_instance_template megasas_instance_template_gen2 = { 1089 1090 .fire_cmd = megasas_fire_cmd_gen2, 1091 .enable_intr = megasas_enable_intr_gen2, 1092 .disable_intr = megasas_disable_intr_gen2, 1093 .clear_intr = megasas_clear_intr_gen2, 1094 .read_fw_status_reg = megasas_read_fw_status_reg_gen2, 1095 .adp_reset = megasas_adp_reset_gen2, 1096 .check_reset = megasas_check_reset_gen2, 1097 .service_isr = megasas_isr, 1098 .tasklet = megasas_complete_cmd_dpc, 1099 .init_adapter = megasas_init_adapter_mfi, 1100 .build_and_issue_cmd = megasas_build_and_issue_cmd, 1101 .issue_dcmd = megasas_issue_dcmd, 1102 }; 1103 1104 /* 1105 * This is the end of set of functions & definitions 1106 * specific to gen2 (deviceid : 0x78, 0x79) controllers 1107 */ 1108 1109 /* 1110 * Template added for TB (Fusion) 1111 */ 1112 extern struct megasas_instance_template megasas_instance_template_fusion; 1113 1114 /** 1115 * megasas_issue_polled - Issues a polling command 1116 * @instance: Adapter soft state 1117 * @cmd: Command packet to be issued 1118 * 1119 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. 1120 */ 1121 int 1122 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) 1123 { 1124 struct megasas_header *frame_hdr = &cmd->frame->hdr; 1125 1126 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; 1127 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); 1128 1129 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1130 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1131 __func__, __LINE__); 1132 return DCMD_INIT; 1133 } 1134 1135 instance->instancet->issue_dcmd(instance, cmd); 1136 1137 return wait_and_poll(instance, cmd, instance->requestorId ? 1138 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); 1139 } 1140 1141 /** 1142 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds 1143 * @instance: Adapter soft state 1144 * @cmd: Command to be issued 1145 * @timeout: Timeout in seconds 1146 * 1147 * This function waits on an event for the command to be returned from ISR. 1148 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1149 * Used to issue ioctl commands. 1150 */ 1151 int 1152 megasas_issue_blocked_cmd(struct megasas_instance *instance, 1153 struct megasas_cmd *cmd, int timeout) 1154 { 1155 int ret = 0; 1156 cmd->cmd_status_drv = DCMD_INIT; 1157 1158 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1159 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1160 __func__, __LINE__); 1161 return DCMD_INIT; 1162 } 1163 1164 instance->instancet->issue_dcmd(instance, cmd); 1165 1166 if (timeout) { 1167 ret = wait_event_timeout(instance->int_cmd_wait_q, 1168 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1169 if (!ret) { 1170 dev_err(&instance->pdev->dev, 1171 "DCMD(opcode: 0x%x) is timed out, func:%s\n", 1172 cmd->frame->dcmd.opcode, __func__); 1173 return DCMD_TIMEOUT; 1174 } 1175 } else 1176 wait_event(instance->int_cmd_wait_q, 1177 cmd->cmd_status_drv != DCMD_INIT); 1178 1179 return cmd->cmd_status_drv; 1180 } 1181 1182 /** 1183 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd 1184 * @instance: Adapter soft state 1185 * @cmd_to_abort: Previously issued cmd to be aborted 1186 * @timeout: Timeout in seconds 1187 * 1188 * MFI firmware can abort previously issued AEN comamnd (automatic event 1189 * notification). The megasas_issue_blocked_abort_cmd() issues such abort 1190 * cmd and waits for return status. 1191 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1192 */ 1193 static int 1194 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, 1195 struct megasas_cmd *cmd_to_abort, int timeout) 1196 { 1197 struct megasas_cmd *cmd; 1198 struct megasas_abort_frame *abort_fr; 1199 int ret = 0; 1200 u32 opcode; 1201 1202 cmd = megasas_get_cmd(instance); 1203 1204 if (!cmd) 1205 return -1; 1206 1207 abort_fr = &cmd->frame->abort; 1208 1209 /* 1210 * Prepare and issue the abort frame 1211 */ 1212 abort_fr->cmd = MFI_CMD_ABORT; 1213 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; 1214 abort_fr->flags = cpu_to_le16(0); 1215 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); 1216 abort_fr->abort_mfi_phys_addr_lo = 1217 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); 1218 abort_fr->abort_mfi_phys_addr_hi = 1219 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); 1220 1221 cmd->sync_cmd = 1; 1222 cmd->cmd_status_drv = DCMD_INIT; 1223 1224 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1225 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1226 __func__, __LINE__); 1227 return DCMD_INIT; 1228 } 1229 1230 instance->instancet->issue_dcmd(instance, cmd); 1231 1232 if (timeout) { 1233 ret = wait_event_timeout(instance->abort_cmd_wait_q, 1234 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1235 if (!ret) { 1236 opcode = cmd_to_abort->frame->dcmd.opcode; 1237 dev_err(&instance->pdev->dev, 1238 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n", 1239 opcode, __func__); 1240 return DCMD_TIMEOUT; 1241 } 1242 } else 1243 wait_event(instance->abort_cmd_wait_q, 1244 cmd->cmd_status_drv != DCMD_INIT); 1245 1246 cmd->sync_cmd = 0; 1247 1248 megasas_return_cmd(instance, cmd); 1249 return cmd->cmd_status_drv; 1250 } 1251 1252 /** 1253 * megasas_make_sgl32 - Prepares 32-bit SGL 1254 * @instance: Adapter soft state 1255 * @scp: SCSI command from the mid-layer 1256 * @mfi_sgl: SGL to be filled in 1257 * 1258 * If successful, this function returns the number of SG elements. Otherwise, 1259 * it returnes -1. 1260 */ 1261 static int 1262 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, 1263 union megasas_sgl *mfi_sgl) 1264 { 1265 int i; 1266 int sge_count; 1267 struct scatterlist *os_sgl; 1268 1269 sge_count = scsi_dma_map(scp); 1270 BUG_ON(sge_count < 0); 1271 1272 if (sge_count) { 1273 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1274 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1275 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); 1276 } 1277 } 1278 return sge_count; 1279 } 1280 1281 /** 1282 * megasas_make_sgl64 - Prepares 64-bit SGL 1283 * @instance: Adapter soft state 1284 * @scp: SCSI command from the mid-layer 1285 * @mfi_sgl: SGL to be filled in 1286 * 1287 * If successful, this function returns the number of SG elements. Otherwise, 1288 * it returnes -1. 1289 */ 1290 static int 1291 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, 1292 union megasas_sgl *mfi_sgl) 1293 { 1294 int i; 1295 int sge_count; 1296 struct scatterlist *os_sgl; 1297 1298 sge_count = scsi_dma_map(scp); 1299 BUG_ON(sge_count < 0); 1300 1301 if (sge_count) { 1302 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1303 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1304 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); 1305 } 1306 } 1307 return sge_count; 1308 } 1309 1310 /** 1311 * megasas_make_sgl_skinny - Prepares IEEE SGL 1312 * @instance: Adapter soft state 1313 * @scp: SCSI command from the mid-layer 1314 * @mfi_sgl: SGL to be filled in 1315 * 1316 * If successful, this function returns the number of SG elements. Otherwise, 1317 * it returnes -1. 1318 */ 1319 static int 1320 megasas_make_sgl_skinny(struct megasas_instance *instance, 1321 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) 1322 { 1323 int i; 1324 int sge_count; 1325 struct scatterlist *os_sgl; 1326 1327 sge_count = scsi_dma_map(scp); 1328 1329 if (sge_count) { 1330 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1331 mfi_sgl->sge_skinny[i].length = 1332 cpu_to_le32(sg_dma_len(os_sgl)); 1333 mfi_sgl->sge_skinny[i].phys_addr = 1334 cpu_to_le64(sg_dma_address(os_sgl)); 1335 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); 1336 } 1337 } 1338 return sge_count; 1339 } 1340 1341 /** 1342 * megasas_get_frame_count - Computes the number of frames 1343 * @frame_type : type of frame- io or pthru frame 1344 * @sge_count : number of sg elements 1345 * 1346 * Returns the number of frames required for numnber of sge's (sge_count) 1347 */ 1348 1349 static u32 megasas_get_frame_count(struct megasas_instance *instance, 1350 u8 sge_count, u8 frame_type) 1351 { 1352 int num_cnt; 1353 int sge_bytes; 1354 u32 sge_sz; 1355 u32 frame_count = 0; 1356 1357 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 1358 sizeof(struct megasas_sge32); 1359 1360 if (instance->flag_ieee) { 1361 sge_sz = sizeof(struct megasas_sge_skinny); 1362 } 1363 1364 /* 1365 * Main frame can contain 2 SGEs for 64-bit SGLs and 1366 * 3 SGEs for 32-bit SGLs for ldio & 1367 * 1 SGEs for 64-bit SGLs and 1368 * 2 SGEs for 32-bit SGLs for pthru frame 1369 */ 1370 if (unlikely(frame_type == PTHRU_FRAME)) { 1371 if (instance->flag_ieee == 1) { 1372 num_cnt = sge_count - 1; 1373 } else if (IS_DMA64) 1374 num_cnt = sge_count - 1; 1375 else 1376 num_cnt = sge_count - 2; 1377 } else { 1378 if (instance->flag_ieee == 1) { 1379 num_cnt = sge_count - 1; 1380 } else if (IS_DMA64) 1381 num_cnt = sge_count - 2; 1382 else 1383 num_cnt = sge_count - 3; 1384 } 1385 1386 if (num_cnt > 0) { 1387 sge_bytes = sge_sz * num_cnt; 1388 1389 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + 1390 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; 1391 } 1392 /* Main frame */ 1393 frame_count += 1; 1394 1395 if (frame_count > 7) 1396 frame_count = 8; 1397 return frame_count; 1398 } 1399 1400 /** 1401 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command 1402 * @instance: Adapter soft state 1403 * @scp: SCSI command 1404 * @cmd: Command to be prepared in 1405 * 1406 * This function prepares CDB commands. These are typcially pass-through 1407 * commands to the devices. 1408 */ 1409 static int 1410 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, 1411 struct megasas_cmd *cmd) 1412 { 1413 u32 is_logical; 1414 u32 device_id; 1415 u16 flags = 0; 1416 struct megasas_pthru_frame *pthru; 1417 1418 is_logical = MEGASAS_IS_LOGICAL(scp->device); 1419 device_id = MEGASAS_DEV_INDEX(scp); 1420 pthru = (struct megasas_pthru_frame *)cmd->frame; 1421 1422 if (scp->sc_data_direction == DMA_TO_DEVICE) 1423 flags = MFI_FRAME_DIR_WRITE; 1424 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1425 flags = MFI_FRAME_DIR_READ; 1426 else if (scp->sc_data_direction == DMA_NONE) 1427 flags = MFI_FRAME_DIR_NONE; 1428 1429 if (instance->flag_ieee == 1) { 1430 flags |= MFI_FRAME_IEEE; 1431 } 1432 1433 /* 1434 * Prepare the DCDB frame 1435 */ 1436 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; 1437 pthru->cmd_status = 0x0; 1438 pthru->scsi_status = 0x0; 1439 pthru->target_id = device_id; 1440 pthru->lun = scp->device->lun; 1441 pthru->cdb_len = scp->cmd_len; 1442 pthru->timeout = 0; 1443 pthru->pad_0 = 0; 1444 pthru->flags = cpu_to_le16(flags); 1445 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); 1446 1447 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); 1448 1449 /* 1450 * If the command is for the tape device, set the 1451 * pthru timeout to the os layer timeout value. 1452 */ 1453 if (scp->device->type == TYPE_TAPE) { 1454 if (scsi_cmd_to_rq(scp)->timeout / HZ > 0xFFFF) 1455 pthru->timeout = cpu_to_le16(0xFFFF); 1456 else 1457 pthru->timeout = cpu_to_le16(scsi_cmd_to_rq(scp)->timeout / HZ); 1458 } 1459 1460 /* 1461 * Construct SGL 1462 */ 1463 if (instance->flag_ieee == 1) { 1464 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1465 pthru->sge_count = megasas_make_sgl_skinny(instance, scp, 1466 &pthru->sgl); 1467 } else if (IS_DMA64) { 1468 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1469 pthru->sge_count = megasas_make_sgl64(instance, scp, 1470 &pthru->sgl); 1471 } else 1472 pthru->sge_count = megasas_make_sgl32(instance, scp, 1473 &pthru->sgl); 1474 1475 if (pthru->sge_count > instance->max_num_sge) { 1476 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", 1477 pthru->sge_count); 1478 return 0; 1479 } 1480 1481 /* 1482 * Sense info specific 1483 */ 1484 pthru->sense_len = SCSI_SENSE_BUFFERSIZE; 1485 pthru->sense_buf_phys_addr_hi = 1486 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); 1487 pthru->sense_buf_phys_addr_lo = 1488 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); 1489 1490 /* 1491 * Compute the total number of frames this command consumes. FW uses 1492 * this number to pull sufficient number of frames from host memory. 1493 */ 1494 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, 1495 PTHRU_FRAME); 1496 1497 return cmd->frame_count; 1498 } 1499 1500 /** 1501 * megasas_build_ldio - Prepares IOs to logical devices 1502 * @instance: Adapter soft state 1503 * @scp: SCSI command 1504 * @cmd: Command to be prepared 1505 * 1506 * Frames (and accompanying SGLs) for regular SCSI IOs use this function. 1507 */ 1508 static int 1509 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, 1510 struct megasas_cmd *cmd) 1511 { 1512 u32 device_id; 1513 u8 sc = scp->cmnd[0]; 1514 u16 flags = 0; 1515 struct megasas_io_frame *ldio; 1516 1517 device_id = MEGASAS_DEV_INDEX(scp); 1518 ldio = (struct megasas_io_frame *)cmd->frame; 1519 1520 if (scp->sc_data_direction == DMA_TO_DEVICE) 1521 flags = MFI_FRAME_DIR_WRITE; 1522 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1523 flags = MFI_FRAME_DIR_READ; 1524 1525 if (instance->flag_ieee == 1) { 1526 flags |= MFI_FRAME_IEEE; 1527 } 1528 1529 /* 1530 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds 1531 */ 1532 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; 1533 ldio->cmd_status = 0x0; 1534 ldio->scsi_status = 0x0; 1535 ldio->target_id = device_id; 1536 ldio->timeout = 0; 1537 ldio->reserved_0 = 0; 1538 ldio->pad_0 = 0; 1539 ldio->flags = cpu_to_le16(flags); 1540 ldio->start_lba_hi = 0; 1541 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; 1542 1543 /* 1544 * 6-byte READ(0x08) or WRITE(0x0A) cdb 1545 */ 1546 if (scp->cmd_len == 6) { 1547 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); 1548 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | 1549 ((u32) scp->cmnd[2] << 8) | 1550 (u32) scp->cmnd[3]); 1551 1552 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); 1553 } 1554 1555 /* 1556 * 10-byte READ(0x28) or WRITE(0x2A) cdb 1557 */ 1558 else if (scp->cmd_len == 10) { 1559 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | 1560 ((u32) scp->cmnd[7] << 8)); 1561 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1562 ((u32) scp->cmnd[3] << 16) | 1563 ((u32) scp->cmnd[4] << 8) | 1564 (u32) scp->cmnd[5]); 1565 } 1566 1567 /* 1568 * 12-byte READ(0xA8) or WRITE(0xAA) cdb 1569 */ 1570 else if (scp->cmd_len == 12) { 1571 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1572 ((u32) scp->cmnd[7] << 16) | 1573 ((u32) scp->cmnd[8] << 8) | 1574 (u32) scp->cmnd[9]); 1575 1576 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1577 ((u32) scp->cmnd[3] << 16) | 1578 ((u32) scp->cmnd[4] << 8) | 1579 (u32) scp->cmnd[5]); 1580 } 1581 1582 /* 1583 * 16-byte READ(0x88) or WRITE(0x8A) cdb 1584 */ 1585 else if (scp->cmd_len == 16) { 1586 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | 1587 ((u32) scp->cmnd[11] << 16) | 1588 ((u32) scp->cmnd[12] << 8) | 1589 (u32) scp->cmnd[13]); 1590 1591 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1592 ((u32) scp->cmnd[7] << 16) | 1593 ((u32) scp->cmnd[8] << 8) | 1594 (u32) scp->cmnd[9]); 1595 1596 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1597 ((u32) scp->cmnd[3] << 16) | 1598 ((u32) scp->cmnd[4] << 8) | 1599 (u32) scp->cmnd[5]); 1600 1601 } 1602 1603 /* 1604 * Construct SGL 1605 */ 1606 if (instance->flag_ieee) { 1607 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1608 ldio->sge_count = megasas_make_sgl_skinny(instance, scp, 1609 &ldio->sgl); 1610 } else if (IS_DMA64) { 1611 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1612 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); 1613 } else 1614 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); 1615 1616 if (ldio->sge_count > instance->max_num_sge) { 1617 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", 1618 ldio->sge_count); 1619 return 0; 1620 } 1621 1622 /* 1623 * Sense info specific 1624 */ 1625 ldio->sense_len = SCSI_SENSE_BUFFERSIZE; 1626 ldio->sense_buf_phys_addr_hi = 0; 1627 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); 1628 1629 /* 1630 * Compute the total number of frames this command consumes. FW uses 1631 * this number to pull sufficient number of frames from host memory. 1632 */ 1633 cmd->frame_count = megasas_get_frame_count(instance, 1634 ldio->sge_count, IO_FRAME); 1635 1636 return cmd->frame_count; 1637 } 1638 1639 /** 1640 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD 1641 * and whether it's RW or non RW 1642 * @cmd: SCSI command 1643 * 1644 */ 1645 inline int megasas_cmd_type(struct scsi_cmnd *cmd) 1646 { 1647 int ret; 1648 1649 switch (cmd->cmnd[0]) { 1650 case READ_10: 1651 case WRITE_10: 1652 case READ_12: 1653 case WRITE_12: 1654 case READ_6: 1655 case WRITE_6: 1656 case READ_16: 1657 case WRITE_16: 1658 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1659 READ_WRITE_LDIO : READ_WRITE_SYSPDIO; 1660 break; 1661 default: 1662 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1663 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; 1664 } 1665 return ret; 1666 } 1667 1668 /** 1669 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds 1670 * in FW 1671 * @instance: Adapter soft state 1672 */ 1673 static inline void 1674 megasas_dump_pending_frames(struct megasas_instance *instance) 1675 { 1676 struct megasas_cmd *cmd; 1677 int i,n; 1678 union megasas_sgl *mfi_sgl; 1679 struct megasas_io_frame *ldio; 1680 struct megasas_pthru_frame *pthru; 1681 u32 sgcount; 1682 u16 max_cmd = instance->max_fw_cmds; 1683 1684 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); 1685 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); 1686 if (IS_DMA64) 1687 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); 1688 else 1689 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); 1690 1691 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); 1692 for (i = 0; i < max_cmd; i++) { 1693 cmd = instance->cmd_list[i]; 1694 if (!cmd->scmd) 1695 continue; 1696 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); 1697 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { 1698 ldio = (struct megasas_io_frame *)cmd->frame; 1699 mfi_sgl = &ldio->sgl; 1700 sgcount = ldio->sge_count; 1701 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," 1702 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1703 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, 1704 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), 1705 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); 1706 } else { 1707 pthru = (struct megasas_pthru_frame *) cmd->frame; 1708 mfi_sgl = &pthru->sgl; 1709 sgcount = pthru->sge_count; 1710 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " 1711 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1712 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, 1713 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), 1714 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); 1715 } 1716 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { 1717 for (n = 0; n < sgcount; n++) { 1718 if (IS_DMA64) 1719 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", 1720 le32_to_cpu(mfi_sgl->sge64[n].length), 1721 le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); 1722 else 1723 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", 1724 le32_to_cpu(mfi_sgl->sge32[n].length), 1725 le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); 1726 } 1727 } 1728 } /*for max_cmd*/ 1729 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); 1730 for (i = 0; i < max_cmd; i++) { 1731 1732 cmd = instance->cmd_list[i]; 1733 1734 if (cmd->sync_cmd == 1) 1735 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); 1736 } 1737 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); 1738 } 1739 1740 u32 1741 megasas_build_and_issue_cmd(struct megasas_instance *instance, 1742 struct scsi_cmnd *scmd) 1743 { 1744 struct megasas_cmd *cmd; 1745 u32 frame_count; 1746 1747 cmd = megasas_get_cmd(instance); 1748 if (!cmd) 1749 return SCSI_MLQUEUE_HOST_BUSY; 1750 1751 /* 1752 * Logical drive command 1753 */ 1754 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) 1755 frame_count = megasas_build_ldio(instance, scmd, cmd); 1756 else 1757 frame_count = megasas_build_dcdb(instance, scmd, cmd); 1758 1759 if (!frame_count) 1760 goto out_return_cmd; 1761 1762 cmd->scmd = scmd; 1763 megasas_priv(scmd)->cmd_priv = cmd; 1764 1765 /* 1766 * Issue the command to the FW 1767 */ 1768 atomic_inc(&instance->fw_outstanding); 1769 1770 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, 1771 cmd->frame_count-1, instance->reg_set); 1772 1773 return 0; 1774 out_return_cmd: 1775 megasas_return_cmd(instance, cmd); 1776 return SCSI_MLQUEUE_HOST_BUSY; 1777 } 1778 1779 1780 /** 1781 * megasas_queue_command - Queue entry point 1782 * @shost: adapter SCSI host 1783 * @scmd: SCSI command to be queued 1784 */ 1785 static int 1786 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 1787 { 1788 struct megasas_instance *instance; 1789 struct MR_PRIV_DEVICE *mr_device_priv_data; 1790 u32 ld_tgt_id; 1791 1792 instance = (struct megasas_instance *) 1793 scmd->device->host->hostdata; 1794 1795 if (instance->unload == 1) { 1796 scmd->result = DID_NO_CONNECT << 16; 1797 scsi_done(scmd); 1798 return 0; 1799 } 1800 1801 if (instance->issuepend_done == 0) 1802 return SCSI_MLQUEUE_HOST_BUSY; 1803 1804 1805 /* Check for an mpio path and adjust behavior */ 1806 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 1807 if (megasas_check_mpio_paths(instance, scmd) == 1808 (DID_REQUEUE << 16)) { 1809 return SCSI_MLQUEUE_HOST_BUSY; 1810 } else { 1811 scmd->result = DID_NO_CONNECT << 16; 1812 scsi_done(scmd); 1813 return 0; 1814 } 1815 } 1816 1817 mr_device_priv_data = scmd->device->hostdata; 1818 if (!mr_device_priv_data || 1819 (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)) { 1820 scmd->result = DID_NO_CONNECT << 16; 1821 scsi_done(scmd); 1822 return 0; 1823 } 1824 1825 if (MEGASAS_IS_LOGICAL(scmd->device)) { 1826 ld_tgt_id = MEGASAS_TARGET_ID(scmd->device); 1827 if (instance->ld_tgtid_status[ld_tgt_id] == LD_TARGET_ID_DELETED) { 1828 scmd->result = DID_NO_CONNECT << 16; 1829 scsi_done(scmd); 1830 return 0; 1831 } 1832 } 1833 1834 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1835 return SCSI_MLQUEUE_HOST_BUSY; 1836 1837 if (mr_device_priv_data->tm_busy) 1838 return SCSI_MLQUEUE_DEVICE_BUSY; 1839 1840 1841 scmd->result = 0; 1842 1843 if (MEGASAS_IS_LOGICAL(scmd->device) && 1844 (scmd->device->id >= instance->fw_supported_vd_count || 1845 scmd->device->lun)) { 1846 scmd->result = DID_BAD_TARGET << 16; 1847 goto out_done; 1848 } 1849 1850 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && 1851 MEGASAS_IS_LOGICAL(scmd->device) && 1852 (!instance->fw_sync_cache_support)) { 1853 scmd->result = DID_OK << 16; 1854 goto out_done; 1855 } 1856 1857 return instance->instancet->build_and_issue_cmd(instance, scmd); 1858 1859 out_done: 1860 scsi_done(scmd); 1861 return 0; 1862 } 1863 1864 static struct megasas_instance *megasas_lookup_instance(u16 host_no) 1865 { 1866 int i; 1867 1868 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 1869 1870 if ((megasas_mgmt_info.instance[i]) && 1871 (megasas_mgmt_info.instance[i]->host->host_no == host_no)) 1872 return megasas_mgmt_info.instance[i]; 1873 } 1874 1875 return NULL; 1876 } 1877 1878 /* 1879 * megasas_set_dynamic_target_properties - 1880 * Device property set by driver may not be static and it is required to be 1881 * updated after OCR 1882 * 1883 * set tm_capable. 1884 * set dma alignment (only for eedp protection enable vd). 1885 * 1886 * @sdev: OS provided scsi device 1887 * 1888 * Returns void 1889 */ 1890 void megasas_set_dynamic_target_properties(struct scsi_device *sdev, 1891 bool is_target_prop) 1892 { 1893 u16 pd_index = 0, ld; 1894 u32 device_id; 1895 struct megasas_instance *instance; 1896 struct fusion_context *fusion; 1897 struct MR_PRIV_DEVICE *mr_device_priv_data; 1898 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1899 struct MR_LD_RAID *raid; 1900 struct MR_DRV_RAID_MAP_ALL *local_map_ptr; 1901 1902 instance = megasas_lookup_instance(sdev->host->host_no); 1903 fusion = instance->ctrl_context; 1904 mr_device_priv_data = sdev->hostdata; 1905 1906 if (!fusion || !mr_device_priv_data) 1907 return; 1908 1909 if (MEGASAS_IS_LOGICAL(sdev)) { 1910 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) 1911 + sdev->id; 1912 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; 1913 ld = MR_TargetIdToLdGet(device_id, local_map_ptr); 1914 if (ld >= instance->fw_supported_vd_count) 1915 return; 1916 raid = MR_LdRaidGet(ld, local_map_ptr); 1917 1918 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) 1919 blk_queue_update_dma_alignment(sdev->request_queue, 0x7); 1920 1921 mr_device_priv_data->is_tm_capable = 1922 raid->capability.tmCapable; 1923 1924 if (!raid->flags.isEPD) 1925 sdev->no_write_same = 1; 1926 1927 } else if (instance->use_seqnum_jbod_fp) { 1928 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1929 sdev->id; 1930 pd_sync = (void *)fusion->pd_seq_sync 1931 [(instance->pd_seq_map_id - 1) & 1]; 1932 mr_device_priv_data->is_tm_capable = 1933 pd_sync->seq[pd_index].capability.tmCapable; 1934 } 1935 1936 if (is_target_prop && instance->tgt_prop->reset_tmo) { 1937 /* 1938 * If FW provides a target reset timeout value, driver will use 1939 * it. If not set, fallback to default values. 1940 */ 1941 mr_device_priv_data->target_reset_tmo = 1942 min_t(u8, instance->max_reset_tmo, 1943 instance->tgt_prop->reset_tmo); 1944 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo; 1945 } else { 1946 mr_device_priv_data->target_reset_tmo = 1947 MEGASAS_DEFAULT_TM_TIMEOUT; 1948 mr_device_priv_data->task_abort_tmo = 1949 MEGASAS_DEFAULT_TM_TIMEOUT; 1950 } 1951 } 1952 1953 /* 1954 * megasas_set_nvme_device_properties - 1955 * set nomerges=2 1956 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). 1957 * set maximum io transfer = MDTS of NVME device provided by MR firmware. 1958 * 1959 * MR firmware provides value in KB. Caller of this function converts 1960 * kb into bytes. 1961 * 1962 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, 1963 * MR firmware provides value 128 as (32 * 4K) = 128K. 1964 * 1965 * @sdev: scsi device 1966 * @max_io_size: maximum io transfer size 1967 * 1968 */ 1969 static inline void 1970 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) 1971 { 1972 struct megasas_instance *instance; 1973 u32 mr_nvme_pg_size; 1974 1975 instance = (struct megasas_instance *)sdev->host->hostdata; 1976 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, 1977 MR_DEFAULT_NVME_PAGE_SIZE); 1978 1979 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512)); 1980 1981 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue); 1982 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); 1983 } 1984 1985 /* 1986 * megasas_set_fw_assisted_qd - 1987 * set device queue depth to can_queue 1988 * set device queue depth to fw assisted qd 1989 * 1990 * @sdev: scsi device 1991 * @is_target_prop true, if fw provided target properties. 1992 */ 1993 static void megasas_set_fw_assisted_qd(struct scsi_device *sdev, 1994 bool is_target_prop) 1995 { 1996 u8 interface_type; 1997 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN; 1998 u32 tgt_device_qd; 1999 struct megasas_instance *instance; 2000 struct MR_PRIV_DEVICE *mr_device_priv_data; 2001 2002 instance = megasas_lookup_instance(sdev->host->host_no); 2003 mr_device_priv_data = sdev->hostdata; 2004 interface_type = mr_device_priv_data->interface_type; 2005 2006 switch (interface_type) { 2007 case SAS_PD: 2008 device_qd = MEGASAS_SAS_QD; 2009 break; 2010 case SATA_PD: 2011 device_qd = MEGASAS_SATA_QD; 2012 break; 2013 case NVME_PD: 2014 device_qd = MEGASAS_NVME_QD; 2015 break; 2016 } 2017 2018 if (is_target_prop) { 2019 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth); 2020 if (tgt_device_qd) 2021 device_qd = min(instance->host->can_queue, 2022 (int)tgt_device_qd); 2023 } 2024 2025 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE) 2026 device_qd = instance->host->can_queue; 2027 2028 scsi_change_queue_depth(sdev, device_qd); 2029 } 2030 2031 /* 2032 * megasas_set_static_target_properties - 2033 * Device property set by driver are static and it is not required to be 2034 * updated after OCR. 2035 * 2036 * set io timeout 2037 * set device queue depth 2038 * set nvme device properties. see - megasas_set_nvme_device_properties 2039 * 2040 * @sdev: scsi device 2041 * @is_target_prop true, if fw provided target properties. 2042 */ 2043 static void megasas_set_static_target_properties(struct scsi_device *sdev, 2044 bool is_target_prop) 2045 { 2046 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; 2047 struct megasas_instance *instance; 2048 2049 instance = megasas_lookup_instance(sdev->host->host_no); 2050 2051 /* 2052 * The RAID firmware may require extended timeouts. 2053 */ 2054 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); 2055 2056 /* max_io_size_kb will be set to non zero for 2057 * nvme based vd and syspd. 2058 */ 2059 if (is_target_prop) 2060 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb); 2061 2062 if (instance->nvme_page_size && max_io_size_kb) 2063 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10)); 2064 2065 megasas_set_fw_assisted_qd(sdev, is_target_prop); 2066 } 2067 2068 2069 static int megasas_slave_configure(struct scsi_device *sdev) 2070 { 2071 u16 pd_index = 0; 2072 struct megasas_instance *instance; 2073 int ret_target_prop = DCMD_FAILED; 2074 bool is_target_prop = false; 2075 2076 instance = megasas_lookup_instance(sdev->host->host_no); 2077 if (instance->pd_list_not_supported) { 2078 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { 2079 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2080 sdev->id; 2081 if (instance->pd_list[pd_index].driveState != 2082 MR_PD_STATE_SYSTEM) 2083 return -ENXIO; 2084 } 2085 } 2086 2087 mutex_lock(&instance->reset_mutex); 2088 /* Send DCMD to Firmware and cache the information */ 2089 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) 2090 megasas_get_pd_info(instance, sdev); 2091 2092 /* Some ventura firmware may not have instance->nvme_page_size set. 2093 * Do not send MR_DCMD_DRV_GET_TARGET_PROP 2094 */ 2095 if ((instance->tgt_prop) && (instance->nvme_page_size)) 2096 ret_target_prop = megasas_get_target_prop(instance, sdev); 2097 2098 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 2099 megasas_set_static_target_properties(sdev, is_target_prop); 2100 2101 /* This sdev property may change post OCR */ 2102 megasas_set_dynamic_target_properties(sdev, is_target_prop); 2103 2104 mutex_unlock(&instance->reset_mutex); 2105 2106 return 0; 2107 } 2108 2109 static int megasas_slave_alloc(struct scsi_device *sdev) 2110 { 2111 u16 pd_index = 0, ld_tgt_id; 2112 struct megasas_instance *instance ; 2113 struct MR_PRIV_DEVICE *mr_device_priv_data; 2114 2115 instance = megasas_lookup_instance(sdev->host->host_no); 2116 if (!MEGASAS_IS_LOGICAL(sdev)) { 2117 /* 2118 * Open the OS scan to the SYSTEM PD 2119 */ 2120 pd_index = 2121 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2122 sdev->id; 2123 if ((instance->pd_list_not_supported || 2124 instance->pd_list[pd_index].driveState == 2125 MR_PD_STATE_SYSTEM)) { 2126 goto scan_target; 2127 } 2128 return -ENXIO; 2129 } else if (!MEGASAS_IS_LUN_VALID(sdev)) { 2130 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__); 2131 return -ENXIO; 2132 } 2133 2134 scan_target: 2135 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), 2136 GFP_KERNEL); 2137 if (!mr_device_priv_data) 2138 return -ENOMEM; 2139 2140 if (MEGASAS_IS_LOGICAL(sdev)) { 2141 ld_tgt_id = MEGASAS_TARGET_ID(sdev); 2142 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_ACTIVE; 2143 if (megasas_dbg_lvl & LD_PD_DEBUG) 2144 sdev_printk(KERN_INFO, sdev, "LD target ID %d created.\n", ld_tgt_id); 2145 } 2146 2147 sdev->hostdata = mr_device_priv_data; 2148 2149 atomic_set(&mr_device_priv_data->r1_ldio_hint, 2150 instance->r1_ldio_hint_default); 2151 return 0; 2152 } 2153 2154 static void megasas_slave_destroy(struct scsi_device *sdev) 2155 { 2156 u16 ld_tgt_id; 2157 struct megasas_instance *instance; 2158 2159 instance = megasas_lookup_instance(sdev->host->host_no); 2160 2161 if (MEGASAS_IS_LOGICAL(sdev)) { 2162 if (!MEGASAS_IS_LUN_VALID(sdev)) { 2163 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__); 2164 return; 2165 } 2166 ld_tgt_id = MEGASAS_TARGET_ID(sdev); 2167 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_DELETED; 2168 if (megasas_dbg_lvl & LD_PD_DEBUG) 2169 sdev_printk(KERN_INFO, sdev, 2170 "LD target ID %d removed from OS stack\n", ld_tgt_id); 2171 } 2172 2173 kfree(sdev->hostdata); 2174 sdev->hostdata = NULL; 2175 } 2176 2177 /* 2178 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a 2179 * kill adapter 2180 * @instance: Adapter soft state 2181 * 2182 */ 2183 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) 2184 { 2185 int i; 2186 struct megasas_cmd *cmd_mfi; 2187 struct megasas_cmd_fusion *cmd_fusion; 2188 struct fusion_context *fusion = instance->ctrl_context; 2189 2190 /* Find all outstanding ioctls */ 2191 if (fusion) { 2192 for (i = 0; i < instance->max_fw_cmds; i++) { 2193 cmd_fusion = fusion->cmd_list[i]; 2194 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { 2195 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; 2196 if (cmd_mfi->sync_cmd && 2197 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { 2198 cmd_mfi->frame->hdr.cmd_status = 2199 MFI_STAT_WRONG_STATE; 2200 megasas_complete_cmd(instance, 2201 cmd_mfi, DID_OK); 2202 } 2203 } 2204 } 2205 } else { 2206 for (i = 0; i < instance->max_fw_cmds; i++) { 2207 cmd_mfi = instance->cmd_list[i]; 2208 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != 2209 MFI_CMD_ABORT) 2210 megasas_complete_cmd(instance, cmd_mfi, DID_OK); 2211 } 2212 } 2213 } 2214 2215 2216 void megaraid_sas_kill_hba(struct megasas_instance *instance) 2217 { 2218 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2219 dev_warn(&instance->pdev->dev, 2220 "Adapter already dead, skipping kill HBA\n"); 2221 return; 2222 } 2223 2224 /* Set critical error to block I/O & ioctls in case caller didn't */ 2225 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2226 /* Wait 1 second to ensure IO or ioctls in build have posted */ 2227 msleep(1000); 2228 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 2229 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 2230 (instance->adapter_type != MFI_SERIES)) { 2231 if (!instance->requestorId) { 2232 writel(MFI_STOP_ADP, &instance->reg_set->doorbell); 2233 /* Flush */ 2234 readl(&instance->reg_set->doorbell); 2235 } 2236 if (instance->requestorId && instance->peerIsPresent) 2237 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 2238 } else { 2239 writel(MFI_STOP_ADP, 2240 &instance->reg_set->inbound_doorbell); 2241 } 2242 /* Complete outstanding ioctls when adapter is killed */ 2243 megasas_complete_outstanding_ioctls(instance); 2244 } 2245 2246 /** 2247 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be 2248 * restored to max value 2249 * @instance: Adapter soft state 2250 * 2251 */ 2252 void 2253 megasas_check_and_restore_queue_depth(struct megasas_instance *instance) 2254 { 2255 unsigned long flags; 2256 2257 if (instance->flag & MEGASAS_FW_BUSY 2258 && time_after(jiffies, instance->last_time + 5 * HZ) 2259 && atomic_read(&instance->fw_outstanding) < 2260 instance->throttlequeuedepth + 1) { 2261 2262 spin_lock_irqsave(instance->host->host_lock, flags); 2263 instance->flag &= ~MEGASAS_FW_BUSY; 2264 2265 instance->host->can_queue = instance->cur_can_queue; 2266 spin_unlock_irqrestore(instance->host->host_lock, flags); 2267 } 2268 } 2269 2270 /** 2271 * megasas_complete_cmd_dpc - Returns FW's controller structure 2272 * @instance_addr: Address of adapter soft state 2273 * 2274 * Tasklet to complete cmds 2275 */ 2276 static void megasas_complete_cmd_dpc(unsigned long instance_addr) 2277 { 2278 u32 producer; 2279 u32 consumer; 2280 u32 context; 2281 struct megasas_cmd *cmd; 2282 struct megasas_instance *instance = 2283 (struct megasas_instance *)instance_addr; 2284 unsigned long flags; 2285 2286 /* If we have already declared adapter dead, donot complete cmds */ 2287 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 2288 return; 2289 2290 spin_lock_irqsave(&instance->completion_lock, flags); 2291 2292 producer = le32_to_cpu(*instance->producer); 2293 consumer = le32_to_cpu(*instance->consumer); 2294 2295 while (consumer != producer) { 2296 context = le32_to_cpu(instance->reply_queue[consumer]); 2297 if (context >= instance->max_fw_cmds) { 2298 dev_err(&instance->pdev->dev, "Unexpected context value %x\n", 2299 context); 2300 BUG(); 2301 } 2302 2303 cmd = instance->cmd_list[context]; 2304 2305 megasas_complete_cmd(instance, cmd, DID_OK); 2306 2307 consumer++; 2308 if (consumer == (instance->max_fw_cmds + 1)) { 2309 consumer = 0; 2310 } 2311 } 2312 2313 *instance->consumer = cpu_to_le32(producer); 2314 2315 spin_unlock_irqrestore(&instance->completion_lock, flags); 2316 2317 /* 2318 * Check if we can restore can_queue 2319 */ 2320 megasas_check_and_restore_queue_depth(instance); 2321 } 2322 2323 static void megasas_sriov_heartbeat_handler(struct timer_list *t); 2324 2325 /** 2326 * megasas_start_timer - Initializes sriov heartbeat timer object 2327 * @instance: Adapter soft state 2328 * 2329 */ 2330 void megasas_start_timer(struct megasas_instance *instance) 2331 { 2332 struct timer_list *timer = &instance->sriov_heartbeat_timer; 2333 2334 timer_setup(timer, megasas_sriov_heartbeat_handler, 0); 2335 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF; 2336 add_timer(timer); 2337 } 2338 2339 static void 2340 megasas_internal_reset_defer_cmds(struct megasas_instance *instance); 2341 2342 static void 2343 process_fw_state_change_wq(struct work_struct *work); 2344 2345 static void megasas_do_ocr(struct megasas_instance *instance) 2346 { 2347 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 2348 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 2349 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 2350 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 2351 } 2352 instance->instancet->disable_intr(instance); 2353 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 2354 instance->issuepend_done = 0; 2355 2356 atomic_set(&instance->fw_outstanding, 0); 2357 megasas_internal_reset_defer_cmds(instance); 2358 process_fw_state_change_wq(&instance->work_init); 2359 } 2360 2361 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, 2362 int initial) 2363 { 2364 struct megasas_cmd *cmd; 2365 struct megasas_dcmd_frame *dcmd; 2366 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; 2367 dma_addr_t new_affiliation_111_h; 2368 int ld, retval = 0; 2369 u8 thisVf; 2370 2371 cmd = megasas_get_cmd(instance); 2372 2373 if (!cmd) { 2374 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" 2375 "Failed to get cmd for scsi%d\n", 2376 instance->host->host_no); 2377 return -ENOMEM; 2378 } 2379 2380 dcmd = &cmd->frame->dcmd; 2381 2382 if (!instance->vf_affiliation_111) { 2383 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2384 "affiliation for scsi%d\n", instance->host->host_no); 2385 megasas_return_cmd(instance, cmd); 2386 return -ENOMEM; 2387 } 2388 2389 if (initial) 2390 memset(instance->vf_affiliation_111, 0, 2391 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2392 else { 2393 new_affiliation_111 = 2394 dma_alloc_coherent(&instance->pdev->dev, 2395 sizeof(struct MR_LD_VF_AFFILIATION_111), 2396 &new_affiliation_111_h, GFP_KERNEL); 2397 if (!new_affiliation_111) { 2398 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2399 "memory for new affiliation for scsi%d\n", 2400 instance->host->host_no); 2401 megasas_return_cmd(instance, cmd); 2402 return -ENOMEM; 2403 } 2404 } 2405 2406 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2407 2408 dcmd->cmd = MFI_CMD_DCMD; 2409 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2410 dcmd->sge_count = 1; 2411 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2412 dcmd->timeout = 0; 2413 dcmd->pad_0 = 0; 2414 dcmd->data_xfer_len = 2415 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); 2416 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); 2417 2418 if (initial) 2419 dcmd->sgl.sge32[0].phys_addr = 2420 cpu_to_le32(instance->vf_affiliation_111_h); 2421 else 2422 dcmd->sgl.sge32[0].phys_addr = 2423 cpu_to_le32(new_affiliation_111_h); 2424 2425 dcmd->sgl.sge32[0].length = cpu_to_le32( 2426 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2427 2428 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2429 "scsi%d\n", instance->host->host_no); 2430 2431 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2432 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2433 " failed with status 0x%x for scsi%d\n", 2434 dcmd->cmd_status, instance->host->host_no); 2435 retval = 1; /* Do a scan if we couldn't get affiliation */ 2436 goto out; 2437 } 2438 2439 if (!initial) { 2440 thisVf = new_affiliation_111->thisVf; 2441 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) 2442 if (instance->vf_affiliation_111->map[ld].policy[thisVf] != 2443 new_affiliation_111->map[ld].policy[thisVf]) { 2444 dev_warn(&instance->pdev->dev, "SR-IOV: " 2445 "Got new LD/VF affiliation for scsi%d\n", 2446 instance->host->host_no); 2447 memcpy(instance->vf_affiliation_111, 2448 new_affiliation_111, 2449 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2450 retval = 1; 2451 goto out; 2452 } 2453 } 2454 out: 2455 if (new_affiliation_111) { 2456 dma_free_coherent(&instance->pdev->dev, 2457 sizeof(struct MR_LD_VF_AFFILIATION_111), 2458 new_affiliation_111, 2459 new_affiliation_111_h); 2460 } 2461 2462 megasas_return_cmd(instance, cmd); 2463 2464 return retval; 2465 } 2466 2467 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, 2468 int initial) 2469 { 2470 struct megasas_cmd *cmd; 2471 struct megasas_dcmd_frame *dcmd; 2472 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; 2473 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; 2474 dma_addr_t new_affiliation_h; 2475 int i, j, retval = 0, found = 0, doscan = 0; 2476 u8 thisVf; 2477 2478 cmd = megasas_get_cmd(instance); 2479 2480 if (!cmd) { 2481 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " 2482 "Failed to get cmd for scsi%d\n", 2483 instance->host->host_no); 2484 return -ENOMEM; 2485 } 2486 2487 dcmd = &cmd->frame->dcmd; 2488 2489 if (!instance->vf_affiliation) { 2490 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2491 "affiliation for scsi%d\n", instance->host->host_no); 2492 megasas_return_cmd(instance, cmd); 2493 return -ENOMEM; 2494 } 2495 2496 if (initial) 2497 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2498 sizeof(struct MR_LD_VF_AFFILIATION)); 2499 else { 2500 new_affiliation = 2501 dma_alloc_coherent(&instance->pdev->dev, 2502 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), 2503 &new_affiliation_h, GFP_KERNEL); 2504 if (!new_affiliation) { 2505 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2506 "memory for new affiliation for scsi%d\n", 2507 instance->host->host_no); 2508 megasas_return_cmd(instance, cmd); 2509 return -ENOMEM; 2510 } 2511 } 2512 2513 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2514 2515 dcmd->cmd = MFI_CMD_DCMD; 2516 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2517 dcmd->sge_count = 1; 2518 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2519 dcmd->timeout = 0; 2520 dcmd->pad_0 = 0; 2521 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2522 sizeof(struct MR_LD_VF_AFFILIATION)); 2523 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); 2524 2525 if (initial) 2526 dcmd->sgl.sge32[0].phys_addr = 2527 cpu_to_le32(instance->vf_affiliation_h); 2528 else 2529 dcmd->sgl.sge32[0].phys_addr = 2530 cpu_to_le32(new_affiliation_h); 2531 2532 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2533 sizeof(struct MR_LD_VF_AFFILIATION)); 2534 2535 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2536 "scsi%d\n", instance->host->host_no); 2537 2538 2539 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2540 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2541 " failed with status 0x%x for scsi%d\n", 2542 dcmd->cmd_status, instance->host->host_no); 2543 retval = 1; /* Do a scan if we couldn't get affiliation */ 2544 goto out; 2545 } 2546 2547 if (!initial) { 2548 if (!new_affiliation->ldCount) { 2549 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2550 "affiliation for passive path for scsi%d\n", 2551 instance->host->host_no); 2552 retval = 1; 2553 goto out; 2554 } 2555 newmap = new_affiliation->map; 2556 savedmap = instance->vf_affiliation->map; 2557 thisVf = new_affiliation->thisVf; 2558 for (i = 0 ; i < new_affiliation->ldCount; i++) { 2559 found = 0; 2560 for (j = 0; j < instance->vf_affiliation->ldCount; 2561 j++) { 2562 if (newmap->ref.targetId == 2563 savedmap->ref.targetId) { 2564 found = 1; 2565 if (newmap->policy[thisVf] != 2566 savedmap->policy[thisVf]) { 2567 doscan = 1; 2568 goto out; 2569 } 2570 } 2571 savedmap = (struct MR_LD_VF_MAP *) 2572 ((unsigned char *)savedmap + 2573 savedmap->size); 2574 } 2575 if (!found && newmap->policy[thisVf] != 2576 MR_LD_ACCESS_HIDDEN) { 2577 doscan = 1; 2578 goto out; 2579 } 2580 newmap = (struct MR_LD_VF_MAP *) 2581 ((unsigned char *)newmap + newmap->size); 2582 } 2583 2584 newmap = new_affiliation->map; 2585 savedmap = instance->vf_affiliation->map; 2586 2587 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { 2588 found = 0; 2589 for (j = 0 ; j < new_affiliation->ldCount; j++) { 2590 if (savedmap->ref.targetId == 2591 newmap->ref.targetId) { 2592 found = 1; 2593 if (savedmap->policy[thisVf] != 2594 newmap->policy[thisVf]) { 2595 doscan = 1; 2596 goto out; 2597 } 2598 } 2599 newmap = (struct MR_LD_VF_MAP *) 2600 ((unsigned char *)newmap + 2601 newmap->size); 2602 } 2603 if (!found && savedmap->policy[thisVf] != 2604 MR_LD_ACCESS_HIDDEN) { 2605 doscan = 1; 2606 goto out; 2607 } 2608 savedmap = (struct MR_LD_VF_MAP *) 2609 ((unsigned char *)savedmap + 2610 savedmap->size); 2611 } 2612 } 2613 out: 2614 if (doscan) { 2615 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2616 "affiliation for scsi%d\n", instance->host->host_no); 2617 memcpy(instance->vf_affiliation, new_affiliation, 2618 new_affiliation->size); 2619 retval = 1; 2620 } 2621 2622 if (new_affiliation) 2623 dma_free_coherent(&instance->pdev->dev, 2624 (MAX_LOGICAL_DRIVES + 1) * 2625 sizeof(struct MR_LD_VF_AFFILIATION), 2626 new_affiliation, new_affiliation_h); 2627 megasas_return_cmd(instance, cmd); 2628 2629 return retval; 2630 } 2631 2632 /* This function will get the current SR-IOV LD/VF affiliation */ 2633 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 2634 int initial) 2635 { 2636 int retval; 2637 2638 if (instance->PlasmaFW111) 2639 retval = megasas_get_ld_vf_affiliation_111(instance, initial); 2640 else 2641 retval = megasas_get_ld_vf_affiliation_12(instance, initial); 2642 return retval; 2643 } 2644 2645 /* This function will tell FW to start the SR-IOV heartbeat */ 2646 int megasas_sriov_start_heartbeat(struct megasas_instance *instance, 2647 int initial) 2648 { 2649 struct megasas_cmd *cmd; 2650 struct megasas_dcmd_frame *dcmd; 2651 int retval = 0; 2652 2653 cmd = megasas_get_cmd(instance); 2654 2655 if (!cmd) { 2656 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " 2657 "Failed to get cmd for scsi%d\n", 2658 instance->host->host_no); 2659 return -ENOMEM; 2660 } 2661 2662 dcmd = &cmd->frame->dcmd; 2663 2664 if (initial) { 2665 instance->hb_host_mem = 2666 dma_alloc_coherent(&instance->pdev->dev, 2667 sizeof(struct MR_CTRL_HB_HOST_MEM), 2668 &instance->hb_host_mem_h, 2669 GFP_KERNEL); 2670 if (!instance->hb_host_mem) { 2671 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" 2672 " memory for heartbeat host memory for scsi%d\n", 2673 instance->host->host_no); 2674 retval = -ENOMEM; 2675 goto out; 2676 } 2677 } 2678 2679 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2680 2681 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2682 dcmd->cmd = MFI_CMD_DCMD; 2683 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2684 dcmd->sge_count = 1; 2685 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2686 dcmd->timeout = 0; 2687 dcmd->pad_0 = 0; 2688 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2689 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); 2690 2691 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h, 2692 sizeof(struct MR_CTRL_HB_HOST_MEM)); 2693 2694 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", 2695 instance->host->host_no); 2696 2697 if ((instance->adapter_type != MFI_SERIES) && 2698 !instance->mask_interrupts) 2699 retval = megasas_issue_blocked_cmd(instance, cmd, 2700 MEGASAS_ROUTINE_WAIT_TIME_VF); 2701 else 2702 retval = megasas_issue_polled(instance, cmd); 2703 2704 if (retval) { 2705 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" 2706 "_MEM_ALLOC DCMD %s for scsi%d\n", 2707 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? 2708 "timed out" : "failed", instance->host->host_no); 2709 retval = 1; 2710 } 2711 2712 out: 2713 megasas_return_cmd(instance, cmd); 2714 2715 return retval; 2716 } 2717 2718 /* Handler for SR-IOV heartbeat */ 2719 static void megasas_sriov_heartbeat_handler(struct timer_list *t) 2720 { 2721 struct megasas_instance *instance = 2722 from_timer(instance, t, sriov_heartbeat_timer); 2723 2724 if (instance->hb_host_mem->HB.fwCounter != 2725 instance->hb_host_mem->HB.driverCounter) { 2726 instance->hb_host_mem->HB.driverCounter = 2727 instance->hb_host_mem->HB.fwCounter; 2728 mod_timer(&instance->sriov_heartbeat_timer, 2729 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 2730 } else { 2731 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " 2732 "completed for scsi%d\n", instance->host->host_no); 2733 schedule_work(&instance->work_init); 2734 } 2735 } 2736 2737 /** 2738 * megasas_wait_for_outstanding - Wait for all outstanding cmds 2739 * @instance: Adapter soft state 2740 * 2741 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to 2742 * complete all its outstanding commands. Returns error if one or more IOs 2743 * are pending after this time period. It also marks the controller dead. 2744 */ 2745 static int megasas_wait_for_outstanding(struct megasas_instance *instance) 2746 { 2747 int i, sl, outstanding; 2748 u32 reset_index; 2749 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 2750 unsigned long flags; 2751 struct list_head clist_local; 2752 struct megasas_cmd *reset_cmd; 2753 u32 fw_state; 2754 2755 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2756 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", 2757 __func__, __LINE__); 2758 return FAILED; 2759 } 2760 2761 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2762 2763 INIT_LIST_HEAD(&clist_local); 2764 spin_lock_irqsave(&instance->hba_lock, flags); 2765 list_splice_init(&instance->internal_reset_pending_q, 2766 &clist_local); 2767 spin_unlock_irqrestore(&instance->hba_lock, flags); 2768 2769 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); 2770 for (i = 0; i < wait_time; i++) { 2771 msleep(1000); 2772 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 2773 break; 2774 } 2775 2776 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2777 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); 2778 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2779 return FAILED; 2780 } 2781 2782 reset_index = 0; 2783 while (!list_empty(&clist_local)) { 2784 reset_cmd = list_entry((&clist_local)->next, 2785 struct megasas_cmd, list); 2786 list_del_init(&reset_cmd->list); 2787 if (reset_cmd->scmd) { 2788 reset_cmd->scmd->result = DID_REQUEUE << 16; 2789 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", 2790 reset_index, reset_cmd, 2791 reset_cmd->scmd->cmnd[0]); 2792 2793 scsi_done(reset_cmd->scmd); 2794 megasas_return_cmd(instance, reset_cmd); 2795 } else if (reset_cmd->sync_cmd) { 2796 dev_notice(&instance->pdev->dev, "%p synch cmds" 2797 "reset queue\n", 2798 reset_cmd); 2799 2800 reset_cmd->cmd_status_drv = DCMD_INIT; 2801 instance->instancet->fire_cmd(instance, 2802 reset_cmd->frame_phys_addr, 2803 0, instance->reg_set); 2804 } else { 2805 dev_notice(&instance->pdev->dev, "%p unexpected" 2806 "cmds lst\n", 2807 reset_cmd); 2808 } 2809 reset_index++; 2810 } 2811 2812 return SUCCESS; 2813 } 2814 2815 for (i = 0; i < resetwaittime; i++) { 2816 outstanding = atomic_read(&instance->fw_outstanding); 2817 2818 if (!outstanding) 2819 break; 2820 2821 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 2822 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " 2823 "commands to complete\n",i,outstanding); 2824 /* 2825 * Call cmd completion routine. Cmd to be 2826 * be completed directly without depending on isr. 2827 */ 2828 megasas_complete_cmd_dpc((unsigned long)instance); 2829 } 2830 2831 msleep(1000); 2832 } 2833 2834 i = 0; 2835 outstanding = atomic_read(&instance->fw_outstanding); 2836 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2837 2838 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2839 goto no_outstanding; 2840 2841 if (instance->disableOnlineCtrlReset) 2842 goto kill_hba_and_failed; 2843 do { 2844 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { 2845 dev_info(&instance->pdev->dev, 2846 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n", 2847 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); 2848 if (i == 3) 2849 goto kill_hba_and_failed; 2850 megasas_do_ocr(instance); 2851 2852 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2853 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", 2854 __func__, __LINE__); 2855 return FAILED; 2856 } 2857 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", 2858 __func__, __LINE__); 2859 2860 for (sl = 0; sl < 10; sl++) 2861 msleep(500); 2862 2863 outstanding = atomic_read(&instance->fw_outstanding); 2864 2865 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2866 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2867 goto no_outstanding; 2868 } 2869 i++; 2870 } while (i <= 3); 2871 2872 no_outstanding: 2873 2874 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", 2875 __func__, __LINE__); 2876 return SUCCESS; 2877 2878 kill_hba_and_failed: 2879 2880 /* Reset not supported, kill adapter */ 2881 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" 2882 " disableOnlineCtrlReset %d fw_outstanding %d \n", 2883 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, 2884 atomic_read(&instance->fw_outstanding)); 2885 megasas_dump_pending_frames(instance); 2886 megaraid_sas_kill_hba(instance); 2887 2888 return FAILED; 2889 } 2890 2891 /** 2892 * megasas_generic_reset - Generic reset routine 2893 * @scmd: Mid-layer SCSI command 2894 * 2895 * This routine implements a generic reset handler for device, bus and host 2896 * reset requests. Device, bus and host specific reset handlers can use this 2897 * function after they do their specific tasks. 2898 */ 2899 static int megasas_generic_reset(struct scsi_cmnd *scmd) 2900 { 2901 int ret_val; 2902 struct megasas_instance *instance; 2903 2904 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2905 2906 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", 2907 scmd->cmnd[0], scmd->retries); 2908 2909 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2910 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); 2911 return FAILED; 2912 } 2913 2914 ret_val = megasas_wait_for_outstanding(instance); 2915 if (ret_val == SUCCESS) 2916 dev_notice(&instance->pdev->dev, "reset successful\n"); 2917 else 2918 dev_err(&instance->pdev->dev, "failed to do reset\n"); 2919 2920 return ret_val; 2921 } 2922 2923 /** 2924 * megasas_reset_timer - quiesce the adapter if required 2925 * @scmd: scsi cmnd 2926 * 2927 * Sets the FW busy flag and reduces the host->can_queue if the 2928 * cmd has not been completed within the timeout period. 2929 */ 2930 static enum scsi_timeout_action megasas_reset_timer(struct scsi_cmnd *scmd) 2931 { 2932 struct megasas_instance *instance; 2933 unsigned long flags; 2934 2935 if (time_after(jiffies, scmd->jiffies_at_alloc + 2936 (scmd_timeout * 2) * HZ)) { 2937 return SCSI_EH_NOT_HANDLED; 2938 } 2939 2940 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2941 if (!(instance->flag & MEGASAS_FW_BUSY)) { 2942 /* FW is busy, throttle IO */ 2943 spin_lock_irqsave(instance->host->host_lock, flags); 2944 2945 instance->host->can_queue = instance->throttlequeuedepth; 2946 instance->last_time = jiffies; 2947 instance->flag |= MEGASAS_FW_BUSY; 2948 2949 spin_unlock_irqrestore(instance->host->host_lock, flags); 2950 } 2951 return SCSI_EH_RESET_TIMER; 2952 } 2953 2954 /** 2955 * megasas_dump - This function will print hexdump of provided buffer. 2956 * @buf: Buffer to be dumped 2957 * @sz: Size in bytes 2958 * @format: Different formats of dumping e.g. format=n will 2959 * cause only 'n' 32 bit words to be dumped in a single 2960 * line. 2961 */ 2962 inline void 2963 megasas_dump(void *buf, int sz, int format) 2964 { 2965 int i; 2966 __le32 *buf_loc = (__le32 *)buf; 2967 2968 for (i = 0; i < (sz / sizeof(__le32)); i++) { 2969 if ((i % format) == 0) { 2970 if (i != 0) 2971 printk(KERN_CONT "\n"); 2972 printk(KERN_CONT "%08x: ", (i * 4)); 2973 } 2974 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i])); 2975 } 2976 printk(KERN_CONT "\n"); 2977 } 2978 2979 /** 2980 * megasas_dump_reg_set - This function will print hexdump of register set 2981 * @reg_set: Register set to be dumped 2982 */ 2983 inline void 2984 megasas_dump_reg_set(void __iomem *reg_set) 2985 { 2986 unsigned int i, sz = 256; 2987 u32 __iomem *reg = (u32 __iomem *)reg_set; 2988 2989 for (i = 0; i < (sz / sizeof(u32)); i++) 2990 printk("%08x: %08x\n", (i * 4), readl(®[i])); 2991 } 2992 2993 /** 2994 * megasas_dump_fusion_io - This function will print key details 2995 * of SCSI IO 2996 * @scmd: SCSI command pointer of SCSI IO 2997 */ 2998 void 2999 megasas_dump_fusion_io(struct scsi_cmnd *scmd) 3000 { 3001 struct megasas_cmd_fusion *cmd = megasas_priv(scmd)->cmd_priv; 3002 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; 3003 struct megasas_instance *instance; 3004 3005 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3006 3007 scmd_printk(KERN_INFO, scmd, 3008 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n", 3009 scmd, scmd->retries, scmd->allowed); 3010 scsi_print_command(scmd); 3011 3012 if (cmd) { 3013 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; 3014 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n"); 3015 scmd_printk(KERN_INFO, scmd, 3016 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n", 3017 req_desc->SCSIIO.RequestFlags, 3018 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID, 3019 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle); 3020 3021 printk(KERN_INFO "IO request frame:\n"); 3022 megasas_dump(cmd->io_request, 3023 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8); 3024 printk(KERN_INFO "Chain frame:\n"); 3025 megasas_dump(cmd->sg_frame, 3026 instance->max_chain_frame_sz, 8); 3027 } 3028 3029 } 3030 3031 /* 3032 * megasas_dump_sys_regs - This function will dump system registers through 3033 * sysfs. 3034 * @reg_set: Pointer to System register set. 3035 * @buf: Buffer to which output is to be written. 3036 * @return: Number of bytes written to buffer. 3037 */ 3038 static inline ssize_t 3039 megasas_dump_sys_regs(void __iomem *reg_set, char *buf) 3040 { 3041 unsigned int i, sz = 256; 3042 int bytes_wrote = 0; 3043 char *loc = (char *)buf; 3044 u32 __iomem *reg = (u32 __iomem *)reg_set; 3045 3046 for (i = 0; i < sz / sizeof(u32); i++) { 3047 bytes_wrote += scnprintf(loc + bytes_wrote, 3048 PAGE_SIZE - bytes_wrote, 3049 "%08x: %08x\n", (i * 4), 3050 readl(®[i])); 3051 } 3052 return bytes_wrote; 3053 } 3054 3055 /** 3056 * megasas_reset_bus_host - Bus & host reset handler entry point 3057 * @scmd: Mid-layer SCSI command 3058 */ 3059 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 3060 { 3061 int ret; 3062 struct megasas_instance *instance; 3063 3064 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3065 3066 scmd_printk(KERN_INFO, scmd, 3067 "OCR is requested due to IO timeout!!\n"); 3068 3069 scmd_printk(KERN_INFO, scmd, 3070 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 3071 scmd->device->host->shost_state, 3072 scsi_host_busy(scmd->device->host), 3073 atomic_read(&instance->fw_outstanding)); 3074 /* 3075 * First wait for all commands to complete 3076 */ 3077 if (instance->adapter_type == MFI_SERIES) { 3078 ret = megasas_generic_reset(scmd); 3079 } else { 3080 megasas_dump_fusion_io(scmd); 3081 ret = megasas_reset_fusion(scmd->device->host, 3082 SCSIIO_TIMEOUT_OCR); 3083 } 3084 3085 return ret; 3086 } 3087 3088 /** 3089 * megasas_task_abort - Issues task abort request to firmware 3090 * (supported only for fusion adapters) 3091 * @scmd: SCSI command pointer 3092 */ 3093 static int megasas_task_abort(struct scsi_cmnd *scmd) 3094 { 3095 int ret; 3096 struct megasas_instance *instance; 3097 3098 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3099 3100 if (instance->adapter_type != MFI_SERIES) 3101 ret = megasas_task_abort_fusion(scmd); 3102 else { 3103 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 3104 ret = FAILED; 3105 } 3106 3107 return ret; 3108 } 3109 3110 /** 3111 * megasas_reset_target: Issues target reset request to firmware 3112 * (supported only for fusion adapters) 3113 * @scmd: SCSI command pointer 3114 */ 3115 static int megasas_reset_target(struct scsi_cmnd *scmd) 3116 { 3117 int ret; 3118 struct megasas_instance *instance; 3119 3120 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3121 3122 if (instance->adapter_type != MFI_SERIES) 3123 ret = megasas_reset_target_fusion(scmd); 3124 else { 3125 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 3126 ret = FAILED; 3127 } 3128 3129 return ret; 3130 } 3131 3132 /** 3133 * megasas_bios_param - Returns disk geometry for a disk 3134 * @sdev: device handle 3135 * @bdev: block device 3136 * @capacity: drive capacity 3137 * @geom: geometry parameters 3138 */ 3139 static int 3140 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, 3141 sector_t capacity, int geom[]) 3142 { 3143 int heads; 3144 int sectors; 3145 sector_t cylinders; 3146 unsigned long tmp; 3147 3148 /* Default heads (64) & sectors (32) */ 3149 heads = 64; 3150 sectors = 32; 3151 3152 tmp = heads * sectors; 3153 cylinders = capacity; 3154 3155 sector_div(cylinders, tmp); 3156 3157 /* 3158 * Handle extended translation size for logical drives > 1Gb 3159 */ 3160 3161 if (capacity >= 0x200000) { 3162 heads = 255; 3163 sectors = 63; 3164 tmp = heads*sectors; 3165 cylinders = capacity; 3166 sector_div(cylinders, tmp); 3167 } 3168 3169 geom[0] = heads; 3170 geom[1] = sectors; 3171 geom[2] = cylinders; 3172 3173 return 0; 3174 } 3175 3176 static void megasas_map_queues(struct Scsi_Host *shost) 3177 { 3178 struct megasas_instance *instance; 3179 int qoff = 0, offset; 3180 struct blk_mq_queue_map *map; 3181 3182 instance = (struct megasas_instance *)shost->hostdata; 3183 3184 if (shost->nr_hw_queues == 1) 3185 return; 3186 3187 offset = instance->low_latency_index_start; 3188 3189 /* Setup Default hctx */ 3190 map = &shost->tag_set.map[HCTX_TYPE_DEFAULT]; 3191 map->nr_queues = instance->msix_vectors - offset; 3192 map->queue_offset = 0; 3193 blk_mq_pci_map_queues(map, instance->pdev, offset); 3194 qoff += map->nr_queues; 3195 offset += map->nr_queues; 3196 3197 /* we never use READ queue, so can't cheat blk-mq */ 3198 shost->tag_set.map[HCTX_TYPE_READ].nr_queues = 0; 3199 3200 /* Setup Poll hctx */ 3201 map = &shost->tag_set.map[HCTX_TYPE_POLL]; 3202 map->nr_queues = instance->iopoll_q_count; 3203 if (map->nr_queues) { 3204 /* 3205 * The poll queue(s) doesn't have an IRQ (and hence IRQ 3206 * affinity), so use the regular blk-mq cpu mapping 3207 */ 3208 map->queue_offset = qoff; 3209 blk_mq_map_queues(map); 3210 } 3211 } 3212 3213 static void megasas_aen_polling(struct work_struct *work); 3214 3215 /** 3216 * megasas_service_aen - Processes an event notification 3217 * @instance: Adapter soft state 3218 * @cmd: AEN command completed by the ISR 3219 * 3220 * For AEN, driver sends a command down to FW that is held by the FW till an 3221 * event occurs. When an event of interest occurs, FW completes the command 3222 * that it was previously holding. 3223 * 3224 * This routines sends SIGIO signal to processes that have registered with the 3225 * driver for AEN. 3226 */ 3227 static void 3228 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 3229 { 3230 unsigned long flags; 3231 3232 /* 3233 * Don't signal app if it is just an aborted previously registered aen 3234 */ 3235 if ((!cmd->abort_aen) && (instance->unload == 0)) { 3236 spin_lock_irqsave(&poll_aen_lock, flags); 3237 megasas_poll_wait_aen = 1; 3238 spin_unlock_irqrestore(&poll_aen_lock, flags); 3239 wake_up(&megasas_poll_wait); 3240 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 3241 } 3242 else 3243 cmd->abort_aen = 0; 3244 3245 instance->aen_cmd = NULL; 3246 3247 megasas_return_cmd(instance, cmd); 3248 3249 if ((instance->unload == 0) && 3250 ((instance->issuepend_done == 1))) { 3251 struct megasas_aen_event *ev; 3252 3253 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3254 if (!ev) { 3255 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 3256 } else { 3257 ev->instance = instance; 3258 instance->ev = ev; 3259 INIT_DELAYED_WORK(&ev->hotplug_work, 3260 megasas_aen_polling); 3261 schedule_delayed_work(&ev->hotplug_work, 0); 3262 } 3263 } 3264 } 3265 3266 static ssize_t 3267 fw_crash_buffer_store(struct device *cdev, 3268 struct device_attribute *attr, const char *buf, size_t count) 3269 { 3270 struct Scsi_Host *shost = class_to_shost(cdev); 3271 struct megasas_instance *instance = 3272 (struct megasas_instance *) shost->hostdata; 3273 int val = 0; 3274 unsigned long flags; 3275 3276 if (kstrtoint(buf, 0, &val) != 0) 3277 return -EINVAL; 3278 3279 spin_lock_irqsave(&instance->crashdump_lock, flags); 3280 instance->fw_crash_buffer_offset = val; 3281 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3282 return strlen(buf); 3283 } 3284 3285 static ssize_t 3286 fw_crash_buffer_show(struct device *cdev, 3287 struct device_attribute *attr, char *buf) 3288 { 3289 struct Scsi_Host *shost = class_to_shost(cdev); 3290 struct megasas_instance *instance = 3291 (struct megasas_instance *) shost->hostdata; 3292 u32 size; 3293 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 3294 unsigned long chunk_left_bytes; 3295 unsigned long src_addr; 3296 unsigned long flags; 3297 u32 buff_offset; 3298 3299 spin_lock_irqsave(&instance->crashdump_lock, flags); 3300 buff_offset = instance->fw_crash_buffer_offset; 3301 if (!instance->crash_dump_buf || 3302 !((instance->fw_crash_state == AVAILABLE) || 3303 (instance->fw_crash_state == COPYING))) { 3304 dev_err(&instance->pdev->dev, 3305 "Firmware crash dump is not available\n"); 3306 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3307 return -EINVAL; 3308 } 3309 3310 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 3311 dev_err(&instance->pdev->dev, 3312 "Firmware crash dump offset is out of range\n"); 3313 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3314 return 0; 3315 } 3316 3317 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 3318 chunk_left_bytes = dmachunk - (buff_offset % dmachunk); 3319 size = (size > chunk_left_bytes) ? chunk_left_bytes : size; 3320 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3321 3322 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 3323 (buff_offset % dmachunk); 3324 memcpy(buf, (void *)src_addr, size); 3325 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3326 3327 return size; 3328 } 3329 3330 static ssize_t 3331 fw_crash_buffer_size_show(struct device *cdev, 3332 struct device_attribute *attr, char *buf) 3333 { 3334 struct Scsi_Host *shost = class_to_shost(cdev); 3335 struct megasas_instance *instance = 3336 (struct megasas_instance *) shost->hostdata; 3337 3338 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3339 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3340 } 3341 3342 static ssize_t 3343 fw_crash_state_store(struct device *cdev, 3344 struct device_attribute *attr, const char *buf, size_t count) 3345 { 3346 struct Scsi_Host *shost = class_to_shost(cdev); 3347 struct megasas_instance *instance = 3348 (struct megasas_instance *) shost->hostdata; 3349 int val = 0; 3350 unsigned long flags; 3351 3352 if (kstrtoint(buf, 0, &val) != 0) 3353 return -EINVAL; 3354 3355 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3356 dev_err(&instance->pdev->dev, "application updates invalid " 3357 "firmware crash state\n"); 3358 return -EINVAL; 3359 } 3360 3361 instance->fw_crash_state = val; 3362 3363 if ((val == COPIED) || (val == COPY_ERROR)) { 3364 spin_lock_irqsave(&instance->crashdump_lock, flags); 3365 megasas_free_host_crash_buffer(instance); 3366 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3367 if (val == COPY_ERROR) 3368 dev_info(&instance->pdev->dev, "application failed to " 3369 "copy Firmware crash dump\n"); 3370 else 3371 dev_info(&instance->pdev->dev, "Firmware crash dump " 3372 "copied successfully\n"); 3373 } 3374 return strlen(buf); 3375 } 3376 3377 static ssize_t 3378 fw_crash_state_show(struct device *cdev, 3379 struct device_attribute *attr, char *buf) 3380 { 3381 struct Scsi_Host *shost = class_to_shost(cdev); 3382 struct megasas_instance *instance = 3383 (struct megasas_instance *) shost->hostdata; 3384 3385 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3386 } 3387 3388 static ssize_t 3389 page_size_show(struct device *cdev, 3390 struct device_attribute *attr, char *buf) 3391 { 3392 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3393 } 3394 3395 static ssize_t 3396 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3397 char *buf) 3398 { 3399 struct Scsi_Host *shost = class_to_shost(cdev); 3400 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3401 3402 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3403 } 3404 3405 static ssize_t 3406 fw_cmds_outstanding_show(struct device *cdev, 3407 struct device_attribute *attr, char *buf) 3408 { 3409 struct Scsi_Host *shost = class_to_shost(cdev); 3410 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3411 3412 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); 3413 } 3414 3415 static ssize_t 3416 enable_sdev_max_qd_show(struct device *cdev, 3417 struct device_attribute *attr, char *buf) 3418 { 3419 struct Scsi_Host *shost = class_to_shost(cdev); 3420 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3421 3422 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); 3423 } 3424 3425 static ssize_t 3426 enable_sdev_max_qd_store(struct device *cdev, 3427 struct device_attribute *attr, const char *buf, size_t count) 3428 { 3429 struct Scsi_Host *shost = class_to_shost(cdev); 3430 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3431 u32 val = 0; 3432 bool is_target_prop; 3433 int ret_target_prop = DCMD_FAILED; 3434 struct scsi_device *sdev; 3435 3436 if (kstrtou32(buf, 0, &val) != 0) { 3437 pr_err("megasas: could not set enable_sdev_max_qd\n"); 3438 return -EINVAL; 3439 } 3440 3441 mutex_lock(&instance->reset_mutex); 3442 if (val) 3443 instance->enable_sdev_max_qd = true; 3444 else 3445 instance->enable_sdev_max_qd = false; 3446 3447 shost_for_each_device(sdev, shost) { 3448 ret_target_prop = megasas_get_target_prop(instance, sdev); 3449 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 3450 megasas_set_fw_assisted_qd(sdev, is_target_prop); 3451 } 3452 mutex_unlock(&instance->reset_mutex); 3453 3454 return strlen(buf); 3455 } 3456 3457 static ssize_t 3458 dump_system_regs_show(struct device *cdev, 3459 struct device_attribute *attr, char *buf) 3460 { 3461 struct Scsi_Host *shost = class_to_shost(cdev); 3462 struct megasas_instance *instance = 3463 (struct megasas_instance *)shost->hostdata; 3464 3465 return megasas_dump_sys_regs(instance->reg_set, buf); 3466 } 3467 3468 static ssize_t 3469 raid_map_id_show(struct device *cdev, struct device_attribute *attr, 3470 char *buf) 3471 { 3472 struct Scsi_Host *shost = class_to_shost(cdev); 3473 struct megasas_instance *instance = 3474 (struct megasas_instance *)shost->hostdata; 3475 3476 return snprintf(buf, PAGE_SIZE, "%ld\n", 3477 (unsigned long)instance->map_id); 3478 } 3479 3480 static DEVICE_ATTR_RW(fw_crash_buffer); 3481 static DEVICE_ATTR_RO(fw_crash_buffer_size); 3482 static DEVICE_ATTR_RW(fw_crash_state); 3483 static DEVICE_ATTR_RO(page_size); 3484 static DEVICE_ATTR_RO(ldio_outstanding); 3485 static DEVICE_ATTR_RO(fw_cmds_outstanding); 3486 static DEVICE_ATTR_RW(enable_sdev_max_qd); 3487 static DEVICE_ATTR_RO(dump_system_regs); 3488 static DEVICE_ATTR_RO(raid_map_id); 3489 3490 static struct attribute *megaraid_host_attrs[] = { 3491 &dev_attr_fw_crash_buffer_size.attr, 3492 &dev_attr_fw_crash_buffer.attr, 3493 &dev_attr_fw_crash_state.attr, 3494 &dev_attr_page_size.attr, 3495 &dev_attr_ldio_outstanding.attr, 3496 &dev_attr_fw_cmds_outstanding.attr, 3497 &dev_attr_enable_sdev_max_qd.attr, 3498 &dev_attr_dump_system_regs.attr, 3499 &dev_attr_raid_map_id.attr, 3500 NULL, 3501 }; 3502 3503 ATTRIBUTE_GROUPS(megaraid_host); 3504 3505 /* 3506 * Scsi host template for megaraid_sas driver 3507 */ 3508 static struct scsi_host_template megasas_template = { 3509 3510 .module = THIS_MODULE, 3511 .name = "Avago SAS based MegaRAID driver", 3512 .proc_name = "megaraid_sas", 3513 .slave_configure = megasas_slave_configure, 3514 .slave_alloc = megasas_slave_alloc, 3515 .slave_destroy = megasas_slave_destroy, 3516 .queuecommand = megasas_queue_command, 3517 .eh_target_reset_handler = megasas_reset_target, 3518 .eh_abort_handler = megasas_task_abort, 3519 .eh_host_reset_handler = megasas_reset_bus_host, 3520 .eh_timed_out = megasas_reset_timer, 3521 .shost_groups = megaraid_host_groups, 3522 .bios_param = megasas_bios_param, 3523 .map_queues = megasas_map_queues, 3524 .mq_poll = megasas_blk_mq_poll, 3525 .change_queue_depth = scsi_change_queue_depth, 3526 .max_segment_size = 0xffffffff, 3527 .cmd_size = sizeof(struct megasas_cmd_priv), 3528 }; 3529 3530 /** 3531 * megasas_complete_int_cmd - Completes an internal command 3532 * @instance: Adapter soft state 3533 * @cmd: Command to be completed 3534 * 3535 * The megasas_issue_blocked_cmd() function waits for a command to complete 3536 * after it issues a command. This function wakes up that waiting routine by 3537 * calling wake_up() on the wait queue. 3538 */ 3539 static void 3540 megasas_complete_int_cmd(struct megasas_instance *instance, 3541 struct megasas_cmd *cmd) 3542 { 3543 if (cmd->cmd_status_drv == DCMD_INIT) 3544 cmd->cmd_status_drv = 3545 (cmd->frame->io.cmd_status == MFI_STAT_OK) ? 3546 DCMD_SUCCESS : DCMD_FAILED; 3547 3548 wake_up(&instance->int_cmd_wait_q); 3549 } 3550 3551 /** 3552 * megasas_complete_abort - Completes aborting a command 3553 * @instance: Adapter soft state 3554 * @cmd: Cmd that was issued to abort another cmd 3555 * 3556 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3557 * after it issues an abort on a previously issued command. This function 3558 * wakes up all functions waiting on the same wait queue. 3559 */ 3560 static void 3561 megasas_complete_abort(struct megasas_instance *instance, 3562 struct megasas_cmd *cmd) 3563 { 3564 if (cmd->sync_cmd) { 3565 cmd->sync_cmd = 0; 3566 cmd->cmd_status_drv = DCMD_SUCCESS; 3567 wake_up(&instance->abort_cmd_wait_q); 3568 } 3569 } 3570 3571 static void 3572 megasas_set_ld_removed_by_fw(struct megasas_instance *instance) 3573 { 3574 uint i; 3575 3576 for (i = 0; (i < MEGASAS_MAX_LD_IDS); i++) { 3577 if (instance->ld_ids_prev[i] != 0xff && 3578 instance->ld_ids_from_raidmap[i] == 0xff) { 3579 if (megasas_dbg_lvl & LD_PD_DEBUG) 3580 dev_info(&instance->pdev->dev, 3581 "LD target ID %d removed from RAID map\n", i); 3582 instance->ld_tgtid_status[i] = LD_TARGET_ID_DELETED; 3583 } 3584 } 3585 } 3586 3587 /** 3588 * megasas_complete_cmd - Completes a command 3589 * @instance: Adapter soft state 3590 * @cmd: Command to be completed 3591 * @alt_status: If non-zero, use this value as status to 3592 * SCSI mid-layer instead of the value returned 3593 * by the FW. This should be used if caller wants 3594 * an alternate status (as in the case of aborted 3595 * commands) 3596 */ 3597 void 3598 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3599 u8 alt_status) 3600 { 3601 int exception = 0; 3602 struct megasas_header *hdr = &cmd->frame->hdr; 3603 unsigned long flags; 3604 struct fusion_context *fusion = instance->ctrl_context; 3605 u32 opcode, status; 3606 3607 /* flag for the retry reset */ 3608 cmd->retry_for_fw_reset = 0; 3609 3610 if (cmd->scmd) 3611 megasas_priv(cmd->scmd)->cmd_priv = NULL; 3612 3613 switch (hdr->cmd) { 3614 case MFI_CMD_INVALID: 3615 /* Some older 1068 controller FW may keep a pended 3616 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3617 when booting the kdump kernel. Ignore this command to 3618 prevent a kernel panic on shutdown of the kdump kernel. */ 3619 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3620 "completed\n"); 3621 dev_warn(&instance->pdev->dev, "If you have a controller " 3622 "other than PERC5, please upgrade your firmware\n"); 3623 break; 3624 case MFI_CMD_PD_SCSI_IO: 3625 case MFI_CMD_LD_SCSI_IO: 3626 3627 /* 3628 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3629 * issued either through an IO path or an IOCTL path. If it 3630 * was via IOCTL, we will send it to internal completion. 3631 */ 3632 if (cmd->sync_cmd) { 3633 cmd->sync_cmd = 0; 3634 megasas_complete_int_cmd(instance, cmd); 3635 break; 3636 } 3637 fallthrough; 3638 3639 case MFI_CMD_LD_READ: 3640 case MFI_CMD_LD_WRITE: 3641 3642 if (alt_status) { 3643 cmd->scmd->result = alt_status << 16; 3644 exception = 1; 3645 } 3646 3647 if (exception) { 3648 3649 atomic_dec(&instance->fw_outstanding); 3650 3651 scsi_dma_unmap(cmd->scmd); 3652 scsi_done(cmd->scmd); 3653 megasas_return_cmd(instance, cmd); 3654 3655 break; 3656 } 3657 3658 switch (hdr->cmd_status) { 3659 3660 case MFI_STAT_OK: 3661 cmd->scmd->result = DID_OK << 16; 3662 break; 3663 3664 case MFI_STAT_SCSI_IO_FAILED: 3665 case MFI_STAT_LD_INIT_IN_PROGRESS: 3666 cmd->scmd->result = 3667 (DID_ERROR << 16) | hdr->scsi_status; 3668 break; 3669 3670 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3671 3672 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3673 3674 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3675 memset(cmd->scmd->sense_buffer, 0, 3676 SCSI_SENSE_BUFFERSIZE); 3677 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3678 hdr->sense_len); 3679 } 3680 3681 break; 3682 3683 case MFI_STAT_LD_OFFLINE: 3684 case MFI_STAT_DEVICE_NOT_FOUND: 3685 cmd->scmd->result = DID_BAD_TARGET << 16; 3686 break; 3687 3688 default: 3689 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3690 hdr->cmd_status); 3691 cmd->scmd->result = DID_ERROR << 16; 3692 break; 3693 } 3694 3695 atomic_dec(&instance->fw_outstanding); 3696 3697 scsi_dma_unmap(cmd->scmd); 3698 scsi_done(cmd->scmd); 3699 megasas_return_cmd(instance, cmd); 3700 3701 break; 3702 3703 case MFI_CMD_SMP: 3704 case MFI_CMD_STP: 3705 case MFI_CMD_NVME: 3706 case MFI_CMD_TOOLBOX: 3707 megasas_complete_int_cmd(instance, cmd); 3708 break; 3709 3710 case MFI_CMD_DCMD: 3711 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3712 /* Check for LD map update */ 3713 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3714 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3715 fusion->fast_path_io = 0; 3716 spin_lock_irqsave(instance->host->host_lock, flags); 3717 status = cmd->frame->hdr.cmd_status; 3718 instance->map_update_cmd = NULL; 3719 if (status != MFI_STAT_OK) { 3720 if (status != MFI_STAT_NOT_FOUND) 3721 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3722 cmd->frame->hdr.cmd_status); 3723 else { 3724 megasas_return_cmd(instance, cmd); 3725 spin_unlock_irqrestore( 3726 instance->host->host_lock, 3727 flags); 3728 break; 3729 } 3730 } 3731 3732 megasas_return_cmd(instance, cmd); 3733 3734 /* 3735 * Set fast path IO to ZERO. 3736 * Validate Map will set proper value. 3737 * Meanwhile all IOs will go as LD IO. 3738 */ 3739 if (status == MFI_STAT_OK && 3740 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { 3741 instance->map_id++; 3742 fusion->fast_path_io = 1; 3743 } else { 3744 fusion->fast_path_io = 0; 3745 } 3746 3747 if (instance->adapter_type >= INVADER_SERIES) 3748 megasas_set_ld_removed_by_fw(instance); 3749 3750 megasas_sync_map_info(instance); 3751 spin_unlock_irqrestore(instance->host->host_lock, 3752 flags); 3753 3754 break; 3755 } 3756 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3757 opcode == MR_DCMD_CTRL_EVENT_GET) { 3758 spin_lock_irqsave(&poll_aen_lock, flags); 3759 megasas_poll_wait_aen = 0; 3760 spin_unlock_irqrestore(&poll_aen_lock, flags); 3761 } 3762 3763 /* FW has an updated PD sequence */ 3764 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3765 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3766 3767 spin_lock_irqsave(instance->host->host_lock, flags); 3768 status = cmd->frame->hdr.cmd_status; 3769 instance->jbod_seq_cmd = NULL; 3770 megasas_return_cmd(instance, cmd); 3771 3772 if (status == MFI_STAT_OK) { 3773 instance->pd_seq_map_id++; 3774 /* Re-register a pd sync seq num cmd */ 3775 if (megasas_sync_pd_seq_num(instance, true)) 3776 instance->use_seqnum_jbod_fp = false; 3777 } else 3778 instance->use_seqnum_jbod_fp = false; 3779 3780 spin_unlock_irqrestore(instance->host->host_lock, flags); 3781 break; 3782 } 3783 3784 /* 3785 * See if got an event notification 3786 */ 3787 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3788 megasas_service_aen(instance, cmd); 3789 else 3790 megasas_complete_int_cmd(instance, cmd); 3791 3792 break; 3793 3794 case MFI_CMD_ABORT: 3795 /* 3796 * Cmd issued to abort another cmd returned 3797 */ 3798 megasas_complete_abort(instance, cmd); 3799 break; 3800 3801 default: 3802 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3803 hdr->cmd); 3804 megasas_complete_int_cmd(instance, cmd); 3805 break; 3806 } 3807 } 3808 3809 /** 3810 * megasas_issue_pending_cmds_again - issue all pending cmds 3811 * in FW again because of the fw reset 3812 * @instance: Adapter soft state 3813 */ 3814 static inline void 3815 megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3816 { 3817 struct megasas_cmd *cmd; 3818 struct list_head clist_local; 3819 union megasas_evt_class_locale class_locale; 3820 unsigned long flags; 3821 u32 seq_num; 3822 3823 INIT_LIST_HEAD(&clist_local); 3824 spin_lock_irqsave(&instance->hba_lock, flags); 3825 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3826 spin_unlock_irqrestore(&instance->hba_lock, flags); 3827 3828 while (!list_empty(&clist_local)) { 3829 cmd = list_entry((&clist_local)->next, 3830 struct megasas_cmd, list); 3831 list_del_init(&cmd->list); 3832 3833 if (cmd->sync_cmd || cmd->scmd) { 3834 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3835 "detected to be pending while HBA reset\n", 3836 cmd, cmd->scmd, cmd->sync_cmd); 3837 3838 cmd->retry_for_fw_reset++; 3839 3840 if (cmd->retry_for_fw_reset == 3) { 3841 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3842 "was tried multiple times during reset." 3843 "Shutting down the HBA\n", 3844 cmd, cmd->scmd, cmd->sync_cmd); 3845 instance->instancet->disable_intr(instance); 3846 atomic_set(&instance->fw_reset_no_pci_access, 1); 3847 megaraid_sas_kill_hba(instance); 3848 return; 3849 } 3850 } 3851 3852 if (cmd->sync_cmd == 1) { 3853 if (cmd->scmd) { 3854 dev_notice(&instance->pdev->dev, "unexpected" 3855 "cmd attached to internal command!\n"); 3856 } 3857 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3858 "on the internal reset queue," 3859 "issue it again.\n", cmd); 3860 cmd->cmd_status_drv = DCMD_INIT; 3861 instance->instancet->fire_cmd(instance, 3862 cmd->frame_phys_addr, 3863 0, instance->reg_set); 3864 } else if (cmd->scmd) { 3865 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3866 "detected on the internal queue, issue again.\n", 3867 cmd, cmd->scmd->cmnd[0]); 3868 3869 atomic_inc(&instance->fw_outstanding); 3870 instance->instancet->fire_cmd(instance, 3871 cmd->frame_phys_addr, 3872 cmd->frame_count-1, instance->reg_set); 3873 } else { 3874 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3875 "internal reset defer list while re-issue!!\n", 3876 cmd); 3877 } 3878 } 3879 3880 if (instance->aen_cmd) { 3881 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3882 megasas_return_cmd(instance, instance->aen_cmd); 3883 3884 instance->aen_cmd = NULL; 3885 } 3886 3887 /* 3888 * Initiate AEN (Asynchronous Event Notification) 3889 */ 3890 seq_num = instance->last_seq_num; 3891 class_locale.members.reserved = 0; 3892 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3893 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3894 3895 megasas_register_aen(instance, seq_num, class_locale.word); 3896 } 3897 3898 /* 3899 * Move the internal reset pending commands to a deferred queue. 3900 * 3901 * We move the commands pending at internal reset time to a 3902 * pending queue. This queue would be flushed after successful 3903 * completion of the internal reset sequence. if the internal reset 3904 * did not complete in time, the kernel reset handler would flush 3905 * these commands. 3906 */ 3907 static void 3908 megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3909 { 3910 struct megasas_cmd *cmd; 3911 int i; 3912 u16 max_cmd = instance->max_fw_cmds; 3913 u32 defer_index; 3914 unsigned long flags; 3915 3916 defer_index = 0; 3917 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3918 for (i = 0; i < max_cmd; i++) { 3919 cmd = instance->cmd_list[i]; 3920 if (cmd->sync_cmd == 1 || cmd->scmd) { 3921 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3922 "on the defer queue as internal\n", 3923 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3924 3925 if (!list_empty(&cmd->list)) { 3926 dev_notice(&instance->pdev->dev, "ERROR while" 3927 " moving this cmd:%p, %d %p, it was" 3928 "discovered on some list?\n", 3929 cmd, cmd->sync_cmd, cmd->scmd); 3930 3931 list_del_init(&cmd->list); 3932 } 3933 defer_index++; 3934 list_add_tail(&cmd->list, 3935 &instance->internal_reset_pending_q); 3936 } 3937 } 3938 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3939 } 3940 3941 3942 static void 3943 process_fw_state_change_wq(struct work_struct *work) 3944 { 3945 struct megasas_instance *instance = 3946 container_of(work, struct megasas_instance, work_init); 3947 u32 wait; 3948 unsigned long flags; 3949 3950 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3951 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3952 atomic_read(&instance->adprecovery)); 3953 return ; 3954 } 3955 3956 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3957 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3958 "state, restarting it...\n"); 3959 3960 instance->instancet->disable_intr(instance); 3961 atomic_set(&instance->fw_outstanding, 0); 3962 3963 atomic_set(&instance->fw_reset_no_pci_access, 1); 3964 instance->instancet->adp_reset(instance, instance->reg_set); 3965 atomic_set(&instance->fw_reset_no_pci_access, 0); 3966 3967 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3968 "initiating next stage...\n"); 3969 3970 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3971 "state 2 starting...\n"); 3972 3973 /* waiting for about 20 second before start the second init */ 3974 for (wait = 0; wait < 30; wait++) { 3975 msleep(1000); 3976 } 3977 3978 if (megasas_transition_to_ready(instance, 1)) { 3979 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3980 3981 atomic_set(&instance->fw_reset_no_pci_access, 1); 3982 megaraid_sas_kill_hba(instance); 3983 return ; 3984 } 3985 3986 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3987 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3988 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3989 ) { 3990 *instance->consumer = *instance->producer; 3991 } else { 3992 *instance->consumer = 0; 3993 *instance->producer = 0; 3994 } 3995 3996 megasas_issue_init_mfi(instance); 3997 3998 spin_lock_irqsave(&instance->hba_lock, flags); 3999 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 4000 spin_unlock_irqrestore(&instance->hba_lock, flags); 4001 instance->instancet->enable_intr(instance); 4002 4003 megasas_issue_pending_cmds_again(instance); 4004 instance->issuepend_done = 1; 4005 } 4006 } 4007 4008 /** 4009 * megasas_deplete_reply_queue - Processes all completed commands 4010 * @instance: Adapter soft state 4011 * @alt_status: Alternate status to be returned to 4012 * SCSI mid-layer instead of the status 4013 * returned by the FW 4014 * Note: this must be called with hba lock held 4015 */ 4016 static int 4017 megasas_deplete_reply_queue(struct megasas_instance *instance, 4018 u8 alt_status) 4019 { 4020 u32 mfiStatus; 4021 u32 fw_state; 4022 4023 if (instance->instancet->check_reset(instance, instance->reg_set) == 1) 4024 return IRQ_HANDLED; 4025 4026 mfiStatus = instance->instancet->clear_intr(instance); 4027 if (mfiStatus == 0) { 4028 /* Hardware may not set outbound_intr_status in MSI-X mode */ 4029 if (!instance->msix_vectors) 4030 return IRQ_NONE; 4031 } 4032 4033 instance->mfiStatus = mfiStatus; 4034 4035 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 4036 fw_state = instance->instancet->read_fw_status_reg( 4037 instance) & MFI_STATE_MASK; 4038 4039 if (fw_state != MFI_STATE_FAULT) { 4040 dev_notice(&instance->pdev->dev, "fw state:%x\n", 4041 fw_state); 4042 } 4043 4044 if ((fw_state == MFI_STATE_FAULT) && 4045 (instance->disableOnlineCtrlReset == 0)) { 4046 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 4047 4048 if ((instance->pdev->device == 4049 PCI_DEVICE_ID_LSI_SAS1064R) || 4050 (instance->pdev->device == 4051 PCI_DEVICE_ID_DELL_PERC5) || 4052 (instance->pdev->device == 4053 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 4054 4055 *instance->consumer = 4056 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 4057 } 4058 4059 4060 instance->instancet->disable_intr(instance); 4061 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 4062 instance->issuepend_done = 0; 4063 4064 atomic_set(&instance->fw_outstanding, 0); 4065 megasas_internal_reset_defer_cmds(instance); 4066 4067 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 4068 fw_state, atomic_read(&instance->adprecovery)); 4069 4070 schedule_work(&instance->work_init); 4071 return IRQ_HANDLED; 4072 4073 } else { 4074 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 4075 fw_state, instance->disableOnlineCtrlReset); 4076 } 4077 } 4078 4079 tasklet_schedule(&instance->isr_tasklet); 4080 return IRQ_HANDLED; 4081 } 4082 4083 /** 4084 * megasas_isr - isr entry point 4085 * @irq: IRQ number 4086 * @devp: IRQ context address 4087 */ 4088 static irqreturn_t megasas_isr(int irq, void *devp) 4089 { 4090 struct megasas_irq_context *irq_context = devp; 4091 struct megasas_instance *instance = irq_context->instance; 4092 unsigned long flags; 4093 irqreturn_t rc; 4094 4095 if (atomic_read(&instance->fw_reset_no_pci_access)) 4096 return IRQ_HANDLED; 4097 4098 spin_lock_irqsave(&instance->hba_lock, flags); 4099 rc = megasas_deplete_reply_queue(instance, DID_OK); 4100 spin_unlock_irqrestore(&instance->hba_lock, flags); 4101 4102 return rc; 4103 } 4104 4105 /** 4106 * megasas_transition_to_ready - Move the FW to READY state 4107 * @instance: Adapter soft state 4108 * @ocr: Adapter reset state 4109 * 4110 * During the initialization, FW passes can potentially be in any one of 4111 * several possible states. If the FW in operational, waiting-for-handshake 4112 * states, driver must take steps to bring it to ready state. Otherwise, it 4113 * has to wait for the ready state. 4114 */ 4115 int 4116 megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 4117 { 4118 int i; 4119 u8 max_wait; 4120 u32 fw_state; 4121 u32 abs_state, curr_abs_state; 4122 4123 abs_state = instance->instancet->read_fw_status_reg(instance); 4124 fw_state = abs_state & MFI_STATE_MASK; 4125 4126 if (fw_state != MFI_STATE_READY) 4127 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 4128 " state\n"); 4129 4130 while (fw_state != MFI_STATE_READY) { 4131 4132 switch (fw_state) { 4133 4134 case MFI_STATE_FAULT: 4135 dev_printk(KERN_ERR, &instance->pdev->dev, 4136 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", 4137 abs_state & MFI_STATE_FAULT_CODE, 4138 abs_state & MFI_STATE_FAULT_SUBCODE, __func__); 4139 if (ocr) { 4140 max_wait = MEGASAS_RESET_WAIT_TIME; 4141 break; 4142 } else { 4143 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4144 megasas_dump_reg_set(instance->reg_set); 4145 return -ENODEV; 4146 } 4147 4148 case MFI_STATE_WAIT_HANDSHAKE: 4149 /* 4150 * Set the CLR bit in inbound doorbell 4151 */ 4152 if ((instance->pdev->device == 4153 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4154 (instance->pdev->device == 4155 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4156 (instance->adapter_type != MFI_SERIES)) 4157 writel( 4158 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4159 &instance->reg_set->doorbell); 4160 else 4161 writel( 4162 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4163 &instance->reg_set->inbound_doorbell); 4164 4165 max_wait = MEGASAS_RESET_WAIT_TIME; 4166 break; 4167 4168 case MFI_STATE_BOOT_MESSAGE_PENDING: 4169 if ((instance->pdev->device == 4170 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4171 (instance->pdev->device == 4172 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4173 (instance->adapter_type != MFI_SERIES)) 4174 writel(MFI_INIT_HOTPLUG, 4175 &instance->reg_set->doorbell); 4176 else 4177 writel(MFI_INIT_HOTPLUG, 4178 &instance->reg_set->inbound_doorbell); 4179 4180 max_wait = MEGASAS_RESET_WAIT_TIME; 4181 break; 4182 4183 case MFI_STATE_OPERATIONAL: 4184 /* 4185 * Bring it to READY state; assuming max wait 10 secs 4186 */ 4187 instance->instancet->disable_intr(instance); 4188 if ((instance->pdev->device == 4189 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4190 (instance->pdev->device == 4191 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4192 (instance->adapter_type != MFI_SERIES)) { 4193 writel(MFI_RESET_FLAGS, 4194 &instance->reg_set->doorbell); 4195 4196 if (instance->adapter_type != MFI_SERIES) { 4197 for (i = 0; i < (10 * 1000); i += 20) { 4198 if (megasas_readl( 4199 instance, 4200 &instance-> 4201 reg_set-> 4202 doorbell) & 1) 4203 msleep(20); 4204 else 4205 break; 4206 } 4207 } 4208 } else 4209 writel(MFI_RESET_FLAGS, 4210 &instance->reg_set->inbound_doorbell); 4211 4212 max_wait = MEGASAS_RESET_WAIT_TIME; 4213 break; 4214 4215 case MFI_STATE_UNDEFINED: 4216 /* 4217 * This state should not last for more than 2 seconds 4218 */ 4219 max_wait = MEGASAS_RESET_WAIT_TIME; 4220 break; 4221 4222 case MFI_STATE_BB_INIT: 4223 max_wait = MEGASAS_RESET_WAIT_TIME; 4224 break; 4225 4226 case MFI_STATE_FW_INIT: 4227 max_wait = MEGASAS_RESET_WAIT_TIME; 4228 break; 4229 4230 case MFI_STATE_FW_INIT_2: 4231 max_wait = MEGASAS_RESET_WAIT_TIME; 4232 break; 4233 4234 case MFI_STATE_DEVICE_SCAN: 4235 max_wait = MEGASAS_RESET_WAIT_TIME; 4236 break; 4237 4238 case MFI_STATE_FLUSH_CACHE: 4239 max_wait = MEGASAS_RESET_WAIT_TIME; 4240 break; 4241 4242 default: 4243 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 4244 fw_state); 4245 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4246 megasas_dump_reg_set(instance->reg_set); 4247 return -ENODEV; 4248 } 4249 4250 /* 4251 * The cur_state should not last for more than max_wait secs 4252 */ 4253 for (i = 0; i < max_wait * 50; i++) { 4254 curr_abs_state = instance->instancet-> 4255 read_fw_status_reg(instance); 4256 4257 if (abs_state == curr_abs_state) { 4258 msleep(20); 4259 } else 4260 break; 4261 } 4262 4263 /* 4264 * Return error if fw_state hasn't changed after max_wait 4265 */ 4266 if (curr_abs_state == abs_state) { 4267 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 4268 "in %d secs\n", fw_state, max_wait); 4269 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4270 megasas_dump_reg_set(instance->reg_set); 4271 return -ENODEV; 4272 } 4273 4274 abs_state = curr_abs_state; 4275 fw_state = curr_abs_state & MFI_STATE_MASK; 4276 } 4277 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 4278 4279 return 0; 4280 } 4281 4282 /** 4283 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 4284 * @instance: Adapter soft state 4285 */ 4286 static void megasas_teardown_frame_pool(struct megasas_instance *instance) 4287 { 4288 int i; 4289 u16 max_cmd = instance->max_mfi_cmds; 4290 struct megasas_cmd *cmd; 4291 4292 if (!instance->frame_dma_pool) 4293 return; 4294 4295 /* 4296 * Return all frames to pool 4297 */ 4298 for (i = 0; i < max_cmd; i++) { 4299 4300 cmd = instance->cmd_list[i]; 4301 4302 if (cmd->frame) 4303 dma_pool_free(instance->frame_dma_pool, cmd->frame, 4304 cmd->frame_phys_addr); 4305 4306 if (cmd->sense) 4307 dma_pool_free(instance->sense_dma_pool, cmd->sense, 4308 cmd->sense_phys_addr); 4309 } 4310 4311 /* 4312 * Now destroy the pool itself 4313 */ 4314 dma_pool_destroy(instance->frame_dma_pool); 4315 dma_pool_destroy(instance->sense_dma_pool); 4316 4317 instance->frame_dma_pool = NULL; 4318 instance->sense_dma_pool = NULL; 4319 } 4320 4321 /** 4322 * megasas_create_frame_pool - Creates DMA pool for cmd frames 4323 * @instance: Adapter soft state 4324 * 4325 * Each command packet has an embedded DMA memory buffer that is used for 4326 * filling MFI frame and the SG list that immediately follows the frame. This 4327 * function creates those DMA memory buffers for each command packet by using 4328 * PCI pool facility. 4329 */ 4330 static int megasas_create_frame_pool(struct megasas_instance *instance) 4331 { 4332 int i; 4333 u16 max_cmd; 4334 u32 frame_count; 4335 struct megasas_cmd *cmd; 4336 4337 max_cmd = instance->max_mfi_cmds; 4338 4339 /* 4340 * For MFI controllers. 4341 * max_num_sge = 60 4342 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 4343 * Total 960 byte (15 MFI frame of 64 byte) 4344 * 4345 * Fusion adapter require only 3 extra frame. 4346 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 4347 * max_sge_sz = 12 byte (sizeof megasas_sge64) 4348 * Total 192 byte (3 MFI frame of 64 byte) 4349 */ 4350 frame_count = (instance->adapter_type == MFI_SERIES) ? 4351 (15 + 1) : (3 + 1); 4352 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 4353 /* 4354 * Use DMA pool facility provided by PCI layer 4355 */ 4356 instance->frame_dma_pool = dma_pool_create("megasas frame pool", 4357 &instance->pdev->dev, 4358 instance->mfi_frame_size, 256, 0); 4359 4360 if (!instance->frame_dma_pool) { 4361 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 4362 return -ENOMEM; 4363 } 4364 4365 instance->sense_dma_pool = dma_pool_create("megasas sense pool", 4366 &instance->pdev->dev, 128, 4367 4, 0); 4368 4369 if (!instance->sense_dma_pool) { 4370 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 4371 4372 dma_pool_destroy(instance->frame_dma_pool); 4373 instance->frame_dma_pool = NULL; 4374 4375 return -ENOMEM; 4376 } 4377 4378 /* 4379 * Allocate and attach a frame to each of the commands in cmd_list. 4380 * By making cmd->index as the context instead of the &cmd, we can 4381 * always use 32bit context regardless of the architecture 4382 */ 4383 for (i = 0; i < max_cmd; i++) { 4384 4385 cmd = instance->cmd_list[i]; 4386 4387 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, 4388 GFP_KERNEL, &cmd->frame_phys_addr); 4389 4390 cmd->sense = dma_pool_alloc(instance->sense_dma_pool, 4391 GFP_KERNEL, &cmd->sense_phys_addr); 4392 4393 /* 4394 * megasas_teardown_frame_pool() takes care of freeing 4395 * whatever has been allocated 4396 */ 4397 if (!cmd->frame || !cmd->sense) { 4398 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); 4399 megasas_teardown_frame_pool(instance); 4400 return -ENOMEM; 4401 } 4402 4403 cmd->frame->io.context = cpu_to_le32(cmd->index); 4404 cmd->frame->io.pad_0 = 0; 4405 if ((instance->adapter_type == MFI_SERIES) && reset_devices) 4406 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 4407 } 4408 4409 return 0; 4410 } 4411 4412 /** 4413 * megasas_free_cmds - Free all the cmds in the free cmd pool 4414 * @instance: Adapter soft state 4415 */ 4416 void megasas_free_cmds(struct megasas_instance *instance) 4417 { 4418 int i; 4419 4420 /* First free the MFI frame pool */ 4421 megasas_teardown_frame_pool(instance); 4422 4423 /* Free all the commands in the cmd_list */ 4424 for (i = 0; i < instance->max_mfi_cmds; i++) 4425 4426 kfree(instance->cmd_list[i]); 4427 4428 /* Free the cmd_list buffer itself */ 4429 kfree(instance->cmd_list); 4430 instance->cmd_list = NULL; 4431 4432 INIT_LIST_HEAD(&instance->cmd_pool); 4433 } 4434 4435 /** 4436 * megasas_alloc_cmds - Allocates the command packets 4437 * @instance: Adapter soft state 4438 * 4439 * Each command that is issued to the FW, whether IO commands from the OS or 4440 * internal commands like IOCTLs, are wrapped in local data structure called 4441 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4442 * the FW. 4443 * 4444 * Each frame has a 32-bit field called context (tag). This context is used 4445 * to get back the megasas_cmd from the frame when a frame gets completed in 4446 * the ISR. Typically the address of the megasas_cmd itself would be used as 4447 * the context. But we wanted to keep the differences between 32 and 64 bit 4448 * systems to the mininum. We always use 32 bit integers for the context. In 4449 * this driver, the 32 bit values are the indices into an array cmd_list. 4450 * This array is used only to look up the megasas_cmd given the context. The 4451 * free commands themselves are maintained in a linked list called cmd_pool. 4452 */ 4453 int megasas_alloc_cmds(struct megasas_instance *instance) 4454 { 4455 int i; 4456 int j; 4457 u16 max_cmd; 4458 struct megasas_cmd *cmd; 4459 4460 max_cmd = instance->max_mfi_cmds; 4461 4462 /* 4463 * instance->cmd_list is an array of struct megasas_cmd pointers. 4464 * Allocate the dynamic array first and then allocate individual 4465 * commands. 4466 */ 4467 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4468 4469 if (!instance->cmd_list) { 4470 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4471 return -ENOMEM; 4472 } 4473 4474 for (i = 0; i < max_cmd; i++) { 4475 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4476 GFP_KERNEL); 4477 4478 if (!instance->cmd_list[i]) { 4479 4480 for (j = 0; j < i; j++) 4481 kfree(instance->cmd_list[j]); 4482 4483 kfree(instance->cmd_list); 4484 instance->cmd_list = NULL; 4485 4486 return -ENOMEM; 4487 } 4488 } 4489 4490 for (i = 0; i < max_cmd; i++) { 4491 cmd = instance->cmd_list[i]; 4492 memset(cmd, 0, sizeof(struct megasas_cmd)); 4493 cmd->index = i; 4494 cmd->scmd = NULL; 4495 cmd->instance = instance; 4496 4497 list_add_tail(&cmd->list, &instance->cmd_pool); 4498 } 4499 4500 /* 4501 * Create a frame pool and assign one frame to each cmd 4502 */ 4503 if (megasas_create_frame_pool(instance)) { 4504 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4505 megasas_free_cmds(instance); 4506 return -ENOMEM; 4507 } 4508 4509 return 0; 4510 } 4511 4512 /* 4513 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4514 * @instance: Adapter soft state 4515 * 4516 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4517 * or FW is not under OCR. 4518 */ 4519 inline int 4520 dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4521 4522 if (instance->adapter_type == MFI_SERIES) 4523 return KILL_ADAPTER; 4524 else if (instance->unload || 4525 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, 4526 &instance->reset_flags)) 4527 return IGNORE_TIMEOUT; 4528 else 4529 return INITIATE_OCR; 4530 } 4531 4532 static void 4533 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4534 { 4535 int ret; 4536 struct megasas_cmd *cmd; 4537 struct megasas_dcmd_frame *dcmd; 4538 4539 struct MR_PRIV_DEVICE *mr_device_priv_data; 4540 u16 device_id = 0; 4541 4542 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4543 cmd = megasas_get_cmd(instance); 4544 4545 if (!cmd) { 4546 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4547 return; 4548 } 4549 4550 dcmd = &cmd->frame->dcmd; 4551 4552 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4553 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4554 4555 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4556 dcmd->cmd = MFI_CMD_DCMD; 4557 dcmd->cmd_status = 0xFF; 4558 dcmd->sge_count = 1; 4559 dcmd->flags = MFI_FRAME_DIR_READ; 4560 dcmd->timeout = 0; 4561 dcmd->pad_0 = 0; 4562 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4563 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4564 4565 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, 4566 sizeof(struct MR_PD_INFO)); 4567 4568 if ((instance->adapter_type != MFI_SERIES) && 4569 !instance->mask_interrupts) 4570 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4571 else 4572 ret = megasas_issue_polled(instance, cmd); 4573 4574 switch (ret) { 4575 case DCMD_SUCCESS: 4576 mr_device_priv_data = sdev->hostdata; 4577 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4578 mr_device_priv_data->interface_type = 4579 instance->pd_info->state.ddf.pdType.intf; 4580 break; 4581 4582 case DCMD_TIMEOUT: 4583 4584 switch (dcmd_timeout_ocr_possible(instance)) { 4585 case INITIATE_OCR: 4586 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4587 mutex_unlock(&instance->reset_mutex); 4588 megasas_reset_fusion(instance->host, 4589 MFI_IO_TIMEOUT_OCR); 4590 mutex_lock(&instance->reset_mutex); 4591 break; 4592 case KILL_ADAPTER: 4593 megaraid_sas_kill_hba(instance); 4594 break; 4595 case IGNORE_TIMEOUT: 4596 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4597 __func__, __LINE__); 4598 break; 4599 } 4600 4601 break; 4602 } 4603 4604 if (ret != DCMD_TIMEOUT) 4605 megasas_return_cmd(instance, cmd); 4606 4607 return; 4608 } 4609 /* 4610 * megasas_get_pd_list_info - Returns FW's pd_list structure 4611 * @instance: Adapter soft state 4612 * @pd_list: pd_list structure 4613 * 4614 * Issues an internal command (DCMD) to get the FW's controller PD 4615 * list structure. This information is mainly used to find out SYSTEM 4616 * supported by the FW. 4617 */ 4618 static int 4619 megasas_get_pd_list(struct megasas_instance *instance) 4620 { 4621 int ret = 0, pd_index = 0; 4622 struct megasas_cmd *cmd; 4623 struct megasas_dcmd_frame *dcmd; 4624 struct MR_PD_LIST *ci; 4625 struct MR_PD_ADDRESS *pd_addr; 4626 4627 if (instance->pd_list_not_supported) { 4628 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4629 "not supported by firmware\n"); 4630 return ret; 4631 } 4632 4633 ci = instance->pd_list_buf; 4634 4635 cmd = megasas_get_cmd(instance); 4636 4637 if (!cmd) { 4638 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4639 return -ENOMEM; 4640 } 4641 4642 dcmd = &cmd->frame->dcmd; 4643 4644 memset(ci, 0, sizeof(*ci)); 4645 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4646 4647 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4648 dcmd->mbox.b[1] = 0; 4649 dcmd->cmd = MFI_CMD_DCMD; 4650 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4651 dcmd->sge_count = 1; 4652 dcmd->flags = MFI_FRAME_DIR_READ; 4653 dcmd->timeout = 0; 4654 dcmd->pad_0 = 0; 4655 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4656 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4657 4658 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, 4659 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); 4660 4661 if ((instance->adapter_type != MFI_SERIES) && 4662 !instance->mask_interrupts) 4663 ret = megasas_issue_blocked_cmd(instance, cmd, 4664 MFI_IO_TIMEOUT_SECS); 4665 else 4666 ret = megasas_issue_polled(instance, cmd); 4667 4668 switch (ret) { 4669 case DCMD_FAILED: 4670 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4671 "failed/not supported by firmware\n"); 4672 4673 if (instance->adapter_type != MFI_SERIES) 4674 megaraid_sas_kill_hba(instance); 4675 else 4676 instance->pd_list_not_supported = 1; 4677 break; 4678 case DCMD_TIMEOUT: 4679 4680 switch (dcmd_timeout_ocr_possible(instance)) { 4681 case INITIATE_OCR: 4682 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4683 /* 4684 * DCMD failed from AEN path. 4685 * AEN path already hold reset_mutex to avoid PCI access 4686 * while OCR is in progress. 4687 */ 4688 mutex_unlock(&instance->reset_mutex); 4689 megasas_reset_fusion(instance->host, 4690 MFI_IO_TIMEOUT_OCR); 4691 mutex_lock(&instance->reset_mutex); 4692 break; 4693 case KILL_ADAPTER: 4694 megaraid_sas_kill_hba(instance); 4695 break; 4696 case IGNORE_TIMEOUT: 4697 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4698 __func__, __LINE__); 4699 break; 4700 } 4701 4702 break; 4703 4704 case DCMD_SUCCESS: 4705 pd_addr = ci->addr; 4706 if (megasas_dbg_lvl & LD_PD_DEBUG) 4707 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", 4708 __func__, le32_to_cpu(ci->count)); 4709 4710 if ((le32_to_cpu(ci->count) > 4711 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4712 break; 4713 4714 memset(instance->local_pd_list, 0, 4715 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4716 4717 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4718 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4719 le16_to_cpu(pd_addr->deviceId); 4720 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4721 pd_addr->scsiDevType; 4722 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4723 MR_PD_STATE_SYSTEM; 4724 if (megasas_dbg_lvl & LD_PD_DEBUG) 4725 dev_info(&instance->pdev->dev, 4726 "PD%d: targetID: 0x%03x deviceType:0x%x\n", 4727 pd_index, le16_to_cpu(pd_addr->deviceId), 4728 pd_addr->scsiDevType); 4729 pd_addr++; 4730 } 4731 4732 memcpy(instance->pd_list, instance->local_pd_list, 4733 sizeof(instance->pd_list)); 4734 break; 4735 4736 } 4737 4738 if (ret != DCMD_TIMEOUT) 4739 megasas_return_cmd(instance, cmd); 4740 4741 return ret; 4742 } 4743 4744 /* 4745 * megasas_get_ld_list_info - Returns FW's ld_list structure 4746 * @instance: Adapter soft state 4747 * @ld_list: ld_list structure 4748 * 4749 * Issues an internal command (DCMD) to get the FW's controller PD 4750 * list structure. This information is mainly used to find out SYSTEM 4751 * supported by the FW. 4752 */ 4753 static int 4754 megasas_get_ld_list(struct megasas_instance *instance) 4755 { 4756 int ret = 0, ld_index = 0, ids = 0; 4757 struct megasas_cmd *cmd; 4758 struct megasas_dcmd_frame *dcmd; 4759 struct MR_LD_LIST *ci; 4760 dma_addr_t ci_h = 0; 4761 u32 ld_count; 4762 4763 ci = instance->ld_list_buf; 4764 ci_h = instance->ld_list_buf_h; 4765 4766 cmd = megasas_get_cmd(instance); 4767 4768 if (!cmd) { 4769 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4770 return -ENOMEM; 4771 } 4772 4773 dcmd = &cmd->frame->dcmd; 4774 4775 memset(ci, 0, sizeof(*ci)); 4776 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4777 4778 if (instance->supportmax256vd) 4779 dcmd->mbox.b[0] = 1; 4780 dcmd->cmd = MFI_CMD_DCMD; 4781 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4782 dcmd->sge_count = 1; 4783 dcmd->flags = MFI_FRAME_DIR_READ; 4784 dcmd->timeout = 0; 4785 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4786 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4787 dcmd->pad_0 = 0; 4788 4789 megasas_set_dma_settings(instance, dcmd, ci_h, 4790 sizeof(struct MR_LD_LIST)); 4791 4792 if ((instance->adapter_type != MFI_SERIES) && 4793 !instance->mask_interrupts) 4794 ret = megasas_issue_blocked_cmd(instance, cmd, 4795 MFI_IO_TIMEOUT_SECS); 4796 else 4797 ret = megasas_issue_polled(instance, cmd); 4798 4799 ld_count = le32_to_cpu(ci->ldCount); 4800 4801 switch (ret) { 4802 case DCMD_FAILED: 4803 megaraid_sas_kill_hba(instance); 4804 break; 4805 case DCMD_TIMEOUT: 4806 4807 switch (dcmd_timeout_ocr_possible(instance)) { 4808 case INITIATE_OCR: 4809 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4810 /* 4811 * DCMD failed from AEN path. 4812 * AEN path already hold reset_mutex to avoid PCI access 4813 * while OCR is in progress. 4814 */ 4815 mutex_unlock(&instance->reset_mutex); 4816 megasas_reset_fusion(instance->host, 4817 MFI_IO_TIMEOUT_OCR); 4818 mutex_lock(&instance->reset_mutex); 4819 break; 4820 case KILL_ADAPTER: 4821 megaraid_sas_kill_hba(instance); 4822 break; 4823 case IGNORE_TIMEOUT: 4824 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4825 __func__, __LINE__); 4826 break; 4827 } 4828 4829 break; 4830 4831 case DCMD_SUCCESS: 4832 if (megasas_dbg_lvl & LD_PD_DEBUG) 4833 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4834 __func__, ld_count); 4835 4836 if (ld_count > instance->fw_supported_vd_count) 4837 break; 4838 4839 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4840 4841 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4842 if (ci->ldList[ld_index].state != 0) { 4843 ids = ci->ldList[ld_index].ref.targetId; 4844 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4845 if (megasas_dbg_lvl & LD_PD_DEBUG) 4846 dev_info(&instance->pdev->dev, 4847 "LD%d: targetID: 0x%03x\n", 4848 ld_index, ids); 4849 } 4850 } 4851 4852 break; 4853 } 4854 4855 if (ret != DCMD_TIMEOUT) 4856 megasas_return_cmd(instance, cmd); 4857 4858 return ret; 4859 } 4860 4861 /** 4862 * megasas_ld_list_query - Returns FW's ld_list structure 4863 * @instance: Adapter soft state 4864 * @query_type: ld_list structure type 4865 * 4866 * Issues an internal command (DCMD) to get the FW's controller PD 4867 * list structure. This information is mainly used to find out SYSTEM 4868 * supported by the FW. 4869 */ 4870 static int 4871 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4872 { 4873 int ret = 0, ld_index = 0, ids = 0; 4874 struct megasas_cmd *cmd; 4875 struct megasas_dcmd_frame *dcmd; 4876 struct MR_LD_TARGETID_LIST *ci; 4877 dma_addr_t ci_h = 0; 4878 u32 tgtid_count; 4879 4880 ci = instance->ld_targetid_list_buf; 4881 ci_h = instance->ld_targetid_list_buf_h; 4882 4883 cmd = megasas_get_cmd(instance); 4884 4885 if (!cmd) { 4886 dev_warn(&instance->pdev->dev, 4887 "megasas_ld_list_query: Failed to get cmd\n"); 4888 return -ENOMEM; 4889 } 4890 4891 dcmd = &cmd->frame->dcmd; 4892 4893 memset(ci, 0, sizeof(*ci)); 4894 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4895 4896 dcmd->mbox.b[0] = query_type; 4897 if (instance->supportmax256vd) 4898 dcmd->mbox.b[2] = 1; 4899 4900 dcmd->cmd = MFI_CMD_DCMD; 4901 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4902 dcmd->sge_count = 1; 4903 dcmd->flags = MFI_FRAME_DIR_READ; 4904 dcmd->timeout = 0; 4905 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4906 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4907 dcmd->pad_0 = 0; 4908 4909 megasas_set_dma_settings(instance, dcmd, ci_h, 4910 sizeof(struct MR_LD_TARGETID_LIST)); 4911 4912 if ((instance->adapter_type != MFI_SERIES) && 4913 !instance->mask_interrupts) 4914 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4915 else 4916 ret = megasas_issue_polled(instance, cmd); 4917 4918 switch (ret) { 4919 case DCMD_FAILED: 4920 dev_info(&instance->pdev->dev, 4921 "DCMD not supported by firmware - %s %d\n", 4922 __func__, __LINE__); 4923 ret = megasas_get_ld_list(instance); 4924 break; 4925 case DCMD_TIMEOUT: 4926 switch (dcmd_timeout_ocr_possible(instance)) { 4927 case INITIATE_OCR: 4928 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4929 /* 4930 * DCMD failed from AEN path. 4931 * AEN path already hold reset_mutex to avoid PCI access 4932 * while OCR is in progress. 4933 */ 4934 mutex_unlock(&instance->reset_mutex); 4935 megasas_reset_fusion(instance->host, 4936 MFI_IO_TIMEOUT_OCR); 4937 mutex_lock(&instance->reset_mutex); 4938 break; 4939 case KILL_ADAPTER: 4940 megaraid_sas_kill_hba(instance); 4941 break; 4942 case IGNORE_TIMEOUT: 4943 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4944 __func__, __LINE__); 4945 break; 4946 } 4947 4948 break; 4949 case DCMD_SUCCESS: 4950 tgtid_count = le32_to_cpu(ci->count); 4951 4952 if (megasas_dbg_lvl & LD_PD_DEBUG) 4953 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4954 __func__, tgtid_count); 4955 4956 if ((tgtid_count > (instance->fw_supported_vd_count))) 4957 break; 4958 4959 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4960 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4961 ids = ci->targetId[ld_index]; 4962 instance->ld_ids[ids] = ci->targetId[ld_index]; 4963 if (megasas_dbg_lvl & LD_PD_DEBUG) 4964 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", 4965 ld_index, ci->targetId[ld_index]); 4966 } 4967 4968 break; 4969 } 4970 4971 if (ret != DCMD_TIMEOUT) 4972 megasas_return_cmd(instance, cmd); 4973 4974 return ret; 4975 } 4976 4977 /** 4978 * megasas_host_device_list_query 4979 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET 4980 * dcmd.mbox - reserved 4981 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure 4982 * Desc: This DCMD will return the combined device list 4983 * Status: MFI_STAT_OK - List returned successfully 4984 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been 4985 * disabled 4986 * @instance: Adapter soft state 4987 * @is_probe: Driver probe check 4988 * Return: 0 if DCMD succeeded 4989 * non-zero if failed 4990 */ 4991 static int 4992 megasas_host_device_list_query(struct megasas_instance *instance, 4993 bool is_probe) 4994 { 4995 int ret, i, target_id; 4996 struct megasas_cmd *cmd; 4997 struct megasas_dcmd_frame *dcmd; 4998 struct MR_HOST_DEVICE_LIST *ci; 4999 u32 count; 5000 dma_addr_t ci_h; 5001 5002 ci = instance->host_device_list_buf; 5003 ci_h = instance->host_device_list_buf_h; 5004 5005 cmd = megasas_get_cmd(instance); 5006 5007 if (!cmd) { 5008 dev_warn(&instance->pdev->dev, 5009 "%s: failed to get cmd\n", 5010 __func__); 5011 return -ENOMEM; 5012 } 5013 5014 dcmd = &cmd->frame->dcmd; 5015 5016 memset(ci, 0, sizeof(*ci)); 5017 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5018 5019 dcmd->mbox.b[0] = is_probe ? 0 : 1; 5020 dcmd->cmd = MFI_CMD_DCMD; 5021 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5022 dcmd->sge_count = 1; 5023 dcmd->flags = MFI_FRAME_DIR_READ; 5024 dcmd->timeout = 0; 5025 dcmd->pad_0 = 0; 5026 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); 5027 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); 5028 5029 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); 5030 5031 if (!instance->mask_interrupts) { 5032 ret = megasas_issue_blocked_cmd(instance, cmd, 5033 MFI_IO_TIMEOUT_SECS); 5034 } else { 5035 ret = megasas_issue_polled(instance, cmd); 5036 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5037 } 5038 5039 switch (ret) { 5040 case DCMD_SUCCESS: 5041 /* Fill the internal pd_list and ld_ids array based on 5042 * targetIds returned by FW 5043 */ 5044 count = le32_to_cpu(ci->count); 5045 5046 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) 5047 break; 5048 5049 if (megasas_dbg_lvl & LD_PD_DEBUG) 5050 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", 5051 __func__, count); 5052 5053 memset(instance->local_pd_list, 0, 5054 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 5055 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 5056 for (i = 0; i < count; i++) { 5057 target_id = le16_to_cpu(ci->host_device_list[i].target_id); 5058 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { 5059 instance->local_pd_list[target_id].tid = target_id; 5060 instance->local_pd_list[target_id].driveType = 5061 ci->host_device_list[i].scsi_type; 5062 instance->local_pd_list[target_id].driveState = 5063 MR_PD_STATE_SYSTEM; 5064 if (megasas_dbg_lvl & LD_PD_DEBUG) 5065 dev_info(&instance->pdev->dev, 5066 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", 5067 i, target_id, ci->host_device_list[i].scsi_type); 5068 } else { 5069 instance->ld_ids[target_id] = target_id; 5070 if (megasas_dbg_lvl & LD_PD_DEBUG) 5071 dev_info(&instance->pdev->dev, 5072 "Device %d: LD targetID: 0x%03x\n", 5073 i, target_id); 5074 } 5075 } 5076 5077 memcpy(instance->pd_list, instance->local_pd_list, 5078 sizeof(instance->pd_list)); 5079 break; 5080 5081 case DCMD_TIMEOUT: 5082 switch (dcmd_timeout_ocr_possible(instance)) { 5083 case INITIATE_OCR: 5084 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5085 mutex_unlock(&instance->reset_mutex); 5086 megasas_reset_fusion(instance->host, 5087 MFI_IO_TIMEOUT_OCR); 5088 mutex_lock(&instance->reset_mutex); 5089 break; 5090 case KILL_ADAPTER: 5091 megaraid_sas_kill_hba(instance); 5092 break; 5093 case IGNORE_TIMEOUT: 5094 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5095 __func__, __LINE__); 5096 break; 5097 } 5098 break; 5099 case DCMD_FAILED: 5100 dev_err(&instance->pdev->dev, 5101 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", 5102 __func__); 5103 break; 5104 } 5105 5106 if (ret != DCMD_TIMEOUT) 5107 megasas_return_cmd(instance, cmd); 5108 5109 return ret; 5110 } 5111 5112 /* 5113 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 5114 * instance : Controller's instance 5115 */ 5116 static void megasas_update_ext_vd_details(struct megasas_instance *instance) 5117 { 5118 struct fusion_context *fusion; 5119 u32 ventura_map_sz = 0; 5120 5121 fusion = instance->ctrl_context; 5122 /* For MFI based controllers return dummy success */ 5123 if (!fusion) 5124 return; 5125 5126 instance->supportmax256vd = 5127 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; 5128 /* Below is additional check to address future FW enhancement */ 5129 if (instance->ctrl_info_buf->max_lds > 64) 5130 instance->supportmax256vd = 1; 5131 5132 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 5133 * MEGASAS_MAX_DEV_PER_CHANNEL; 5134 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 5135 * MEGASAS_MAX_DEV_PER_CHANNEL; 5136 if (instance->supportmax256vd) { 5137 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 5138 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5139 } else { 5140 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5141 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5142 } 5143 5144 dev_info(&instance->pdev->dev, 5145 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", 5146 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, 5147 instance->ctrl_info_buf->max_lds); 5148 5149 if (instance->max_raid_mapsize) { 5150 ventura_map_sz = instance->max_raid_mapsize * 5151 MR_MIN_MAP_SIZE; /* 64k */ 5152 fusion->current_map_sz = ventura_map_sz; 5153 fusion->max_map_sz = ventura_map_sz; 5154 } else { 5155 fusion->old_map_sz = 5156 struct_size((struct MR_FW_RAID_MAP *)0, ldSpanMap, 5157 instance->fw_supported_vd_count); 5158 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 5159 5160 fusion->max_map_sz = 5161 max(fusion->old_map_sz, fusion->new_map_sz); 5162 5163 if (instance->supportmax256vd) 5164 fusion->current_map_sz = fusion->new_map_sz; 5165 else 5166 fusion->current_map_sz = fusion->old_map_sz; 5167 } 5168 /* irrespective of FW raid maps, driver raid map is constant */ 5169 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 5170 } 5171 5172 /* 5173 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 5174 * dcmd.hdr.length - number of bytes to read 5175 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES 5176 * Desc: Fill in snapdump properties 5177 * Status: MFI_STAT_OK- Command successful 5178 */ 5179 void megasas_get_snapdump_properties(struct megasas_instance *instance) 5180 { 5181 int ret = 0; 5182 struct megasas_cmd *cmd; 5183 struct megasas_dcmd_frame *dcmd; 5184 struct MR_SNAPDUMP_PROPERTIES *ci; 5185 dma_addr_t ci_h = 0; 5186 5187 ci = instance->snapdump_prop; 5188 ci_h = instance->snapdump_prop_h; 5189 5190 if (!ci) 5191 return; 5192 5193 cmd = megasas_get_cmd(instance); 5194 5195 if (!cmd) { 5196 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); 5197 return; 5198 } 5199 5200 dcmd = &cmd->frame->dcmd; 5201 5202 memset(ci, 0, sizeof(*ci)); 5203 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5204 5205 dcmd->cmd = MFI_CMD_DCMD; 5206 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5207 dcmd->sge_count = 1; 5208 dcmd->flags = MFI_FRAME_DIR_READ; 5209 dcmd->timeout = 0; 5210 dcmd->pad_0 = 0; 5211 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5212 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); 5213 5214 megasas_set_dma_settings(instance, dcmd, ci_h, 5215 sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5216 5217 if (!instance->mask_interrupts) { 5218 ret = megasas_issue_blocked_cmd(instance, cmd, 5219 MFI_IO_TIMEOUT_SECS); 5220 } else { 5221 ret = megasas_issue_polled(instance, cmd); 5222 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5223 } 5224 5225 switch (ret) { 5226 case DCMD_SUCCESS: 5227 instance->snapdump_wait_time = 5228 min_t(u8, ci->trigger_min_num_sec_before_ocr, 5229 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); 5230 break; 5231 5232 case DCMD_TIMEOUT: 5233 switch (dcmd_timeout_ocr_possible(instance)) { 5234 case INITIATE_OCR: 5235 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5236 mutex_unlock(&instance->reset_mutex); 5237 megasas_reset_fusion(instance->host, 5238 MFI_IO_TIMEOUT_OCR); 5239 mutex_lock(&instance->reset_mutex); 5240 break; 5241 case KILL_ADAPTER: 5242 megaraid_sas_kill_hba(instance); 5243 break; 5244 case IGNORE_TIMEOUT: 5245 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5246 __func__, __LINE__); 5247 break; 5248 } 5249 } 5250 5251 if (ret != DCMD_TIMEOUT) 5252 megasas_return_cmd(instance, cmd); 5253 } 5254 5255 /** 5256 * megasas_get_ctrl_info - Returns FW's controller structure 5257 * @instance: Adapter soft state 5258 * 5259 * Issues an internal command (DCMD) to get the FW's controller structure. 5260 * This information is mainly used to find out the maximum IO transfer per 5261 * command supported by the FW. 5262 */ 5263 int 5264 megasas_get_ctrl_info(struct megasas_instance *instance) 5265 { 5266 int ret = 0; 5267 struct megasas_cmd *cmd; 5268 struct megasas_dcmd_frame *dcmd; 5269 struct megasas_ctrl_info *ci; 5270 dma_addr_t ci_h = 0; 5271 5272 ci = instance->ctrl_info_buf; 5273 ci_h = instance->ctrl_info_buf_h; 5274 5275 cmd = megasas_get_cmd(instance); 5276 5277 if (!cmd) { 5278 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 5279 return -ENOMEM; 5280 } 5281 5282 dcmd = &cmd->frame->dcmd; 5283 5284 memset(ci, 0, sizeof(*ci)); 5285 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5286 5287 dcmd->cmd = MFI_CMD_DCMD; 5288 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5289 dcmd->sge_count = 1; 5290 dcmd->flags = MFI_FRAME_DIR_READ; 5291 dcmd->timeout = 0; 5292 dcmd->pad_0 = 0; 5293 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 5294 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 5295 dcmd->mbox.b[0] = 1; 5296 5297 megasas_set_dma_settings(instance, dcmd, ci_h, 5298 sizeof(struct megasas_ctrl_info)); 5299 5300 if ((instance->adapter_type != MFI_SERIES) && 5301 !instance->mask_interrupts) { 5302 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5303 } else { 5304 ret = megasas_issue_polled(instance, cmd); 5305 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5306 } 5307 5308 switch (ret) { 5309 case DCMD_SUCCESS: 5310 /* Save required controller information in 5311 * CPU endianness format. 5312 */ 5313 le32_to_cpus((u32 *)&ci->properties.OnOffProperties); 5314 le16_to_cpus((u16 *)&ci->properties.on_off_properties2); 5315 le32_to_cpus((u32 *)&ci->adapterOperations2); 5316 le32_to_cpus((u32 *)&ci->adapterOperations3); 5317 le16_to_cpus((u16 *)&ci->adapter_operations4); 5318 le32_to_cpus((u32 *)&ci->adapter_operations5); 5319 5320 /* Update the latest Ext VD info. 5321 * From Init path, store current firmware details. 5322 * From OCR path, detect any firmware properties changes. 5323 * in case of Firmware upgrade without system reboot. 5324 */ 5325 megasas_update_ext_vd_details(instance); 5326 instance->support_seqnum_jbod_fp = 5327 ci->adapterOperations3.useSeqNumJbodFP; 5328 instance->support_morethan256jbod = 5329 ci->adapter_operations4.support_pd_map_target_id; 5330 instance->support_nvme_passthru = 5331 ci->adapter_operations4.support_nvme_passthru; 5332 instance->support_pci_lane_margining = 5333 ci->adapter_operations5.support_pci_lane_margining; 5334 instance->task_abort_tmo = ci->TaskAbortTO; 5335 instance->max_reset_tmo = ci->MaxResetTO; 5336 5337 /*Check whether controller is iMR or MR */ 5338 instance->is_imr = (ci->memory_size ? 0 : 1); 5339 5340 instance->snapdump_wait_time = 5341 (ci->properties.on_off_properties2.enable_snap_dump ? 5342 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); 5343 5344 instance->enable_fw_dev_list = 5345 ci->properties.on_off_properties2.enable_fw_dev_list; 5346 5347 dev_info(&instance->pdev->dev, 5348 "controller type\t: %s(%dMB)\n", 5349 instance->is_imr ? "iMR" : "MR", 5350 le16_to_cpu(ci->memory_size)); 5351 5352 instance->disableOnlineCtrlReset = 5353 ci->properties.OnOffProperties.disableOnlineCtrlReset; 5354 instance->secure_jbod_support = 5355 ci->adapterOperations3.supportSecurityonJBOD; 5356 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 5357 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 5358 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 5359 instance->secure_jbod_support ? "Yes" : "No"); 5360 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", 5361 instance->support_nvme_passthru ? "Yes" : "No"); 5362 dev_info(&instance->pdev->dev, 5363 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", 5364 instance->task_abort_tmo, instance->max_reset_tmo); 5365 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", 5366 instance->support_seqnum_jbod_fp ? "Yes" : "No"); 5367 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", 5368 instance->support_pci_lane_margining ? "Yes" : "No"); 5369 5370 break; 5371 5372 case DCMD_TIMEOUT: 5373 switch (dcmd_timeout_ocr_possible(instance)) { 5374 case INITIATE_OCR: 5375 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5376 mutex_unlock(&instance->reset_mutex); 5377 megasas_reset_fusion(instance->host, 5378 MFI_IO_TIMEOUT_OCR); 5379 mutex_lock(&instance->reset_mutex); 5380 break; 5381 case KILL_ADAPTER: 5382 megaraid_sas_kill_hba(instance); 5383 break; 5384 case IGNORE_TIMEOUT: 5385 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5386 __func__, __LINE__); 5387 break; 5388 } 5389 break; 5390 case DCMD_FAILED: 5391 megaraid_sas_kill_hba(instance); 5392 break; 5393 5394 } 5395 5396 if (ret != DCMD_TIMEOUT) 5397 megasas_return_cmd(instance, cmd); 5398 5399 return ret; 5400 } 5401 5402 /* 5403 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 5404 * to firmware 5405 * 5406 * @instance: Adapter soft state 5407 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 5408 MR_CRASH_BUF_TURN_OFF = 0 5409 MR_CRASH_BUF_TURN_ON = 1 5410 * @return 0 on success non-zero on failure. 5411 * Issues an internal command (DCMD) to set parameters for crash dump feature. 5412 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 5413 * that driver supports crash dump feature. This DCMD will be sent only if 5414 * crash dump feature is supported by the FW. 5415 * 5416 */ 5417 int megasas_set_crash_dump_params(struct megasas_instance *instance, 5418 u8 crash_buf_state) 5419 { 5420 int ret = 0; 5421 struct megasas_cmd *cmd; 5422 struct megasas_dcmd_frame *dcmd; 5423 5424 cmd = megasas_get_cmd(instance); 5425 5426 if (!cmd) { 5427 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 5428 return -ENOMEM; 5429 } 5430 5431 5432 dcmd = &cmd->frame->dcmd; 5433 5434 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5435 dcmd->mbox.b[0] = crash_buf_state; 5436 dcmd->cmd = MFI_CMD_DCMD; 5437 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5438 dcmd->sge_count = 1; 5439 dcmd->flags = MFI_FRAME_DIR_NONE; 5440 dcmd->timeout = 0; 5441 dcmd->pad_0 = 0; 5442 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 5443 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 5444 5445 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, 5446 CRASH_DMA_BUF_SIZE); 5447 5448 if ((instance->adapter_type != MFI_SERIES) && 5449 !instance->mask_interrupts) 5450 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5451 else 5452 ret = megasas_issue_polled(instance, cmd); 5453 5454 if (ret == DCMD_TIMEOUT) { 5455 switch (dcmd_timeout_ocr_possible(instance)) { 5456 case INITIATE_OCR: 5457 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5458 megasas_reset_fusion(instance->host, 5459 MFI_IO_TIMEOUT_OCR); 5460 break; 5461 case KILL_ADAPTER: 5462 megaraid_sas_kill_hba(instance); 5463 break; 5464 case IGNORE_TIMEOUT: 5465 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5466 __func__, __LINE__); 5467 break; 5468 } 5469 } else 5470 megasas_return_cmd(instance, cmd); 5471 5472 return ret; 5473 } 5474 5475 /** 5476 * megasas_issue_init_mfi - Initializes the FW 5477 * @instance: Adapter soft state 5478 * 5479 * Issues the INIT MFI cmd 5480 */ 5481 static int 5482 megasas_issue_init_mfi(struct megasas_instance *instance) 5483 { 5484 __le32 context; 5485 struct megasas_cmd *cmd; 5486 struct megasas_init_frame *init_frame; 5487 struct megasas_init_queue_info *initq_info; 5488 dma_addr_t init_frame_h; 5489 dma_addr_t initq_info_h; 5490 5491 /* 5492 * Prepare a init frame. Note the init frame points to queue info 5493 * structure. Each frame has SGL allocated after first 64 bytes. For 5494 * this frame - since we don't need any SGL - we use SGL's space as 5495 * queue info structure 5496 * 5497 * We will not get a NULL command below. We just created the pool. 5498 */ 5499 cmd = megasas_get_cmd(instance); 5500 5501 init_frame = (struct megasas_init_frame *)cmd->frame; 5502 initq_info = (struct megasas_init_queue_info *) 5503 ((unsigned long)init_frame + 64); 5504 5505 init_frame_h = cmd->frame_phys_addr; 5506 initq_info_h = init_frame_h + 64; 5507 5508 context = init_frame->context; 5509 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 5510 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 5511 init_frame->context = context; 5512 5513 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 5514 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 5515 5516 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 5517 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 5518 5519 init_frame->cmd = MFI_CMD_INIT; 5520 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 5521 init_frame->queue_info_new_phys_addr_lo = 5522 cpu_to_le32(lower_32_bits(initq_info_h)); 5523 init_frame->queue_info_new_phys_addr_hi = 5524 cpu_to_le32(upper_32_bits(initq_info_h)); 5525 5526 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 5527 5528 /* 5529 * disable the intr before firing the init frame to FW 5530 */ 5531 instance->instancet->disable_intr(instance); 5532 5533 /* 5534 * Issue the init frame in polled mode 5535 */ 5536 5537 if (megasas_issue_polled(instance, cmd)) { 5538 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 5539 megasas_return_cmd(instance, cmd); 5540 goto fail_fw_init; 5541 } 5542 5543 megasas_return_cmd(instance, cmd); 5544 5545 return 0; 5546 5547 fail_fw_init: 5548 return -EINVAL; 5549 } 5550 5551 static u32 5552 megasas_init_adapter_mfi(struct megasas_instance *instance) 5553 { 5554 u32 context_sz; 5555 u32 reply_q_sz; 5556 5557 /* 5558 * Get various operational parameters from status register 5559 */ 5560 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; 5561 /* 5562 * Reduce the max supported cmds by 1. This is to ensure that the 5563 * reply_q_sz (1 more than the max cmd that driver may send) 5564 * does not exceed max cmds that the FW can support 5565 */ 5566 instance->max_fw_cmds = instance->max_fw_cmds-1; 5567 instance->max_mfi_cmds = instance->max_fw_cmds; 5568 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> 5569 0x10; 5570 /* 5571 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 5572 * are reserved for IOCTL + driver's internal DCMDs. 5573 */ 5574 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 5575 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 5576 instance->max_scsi_cmds = (instance->max_fw_cmds - 5577 MEGASAS_SKINNY_INT_CMDS); 5578 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 5579 } else { 5580 instance->max_scsi_cmds = (instance->max_fw_cmds - 5581 MEGASAS_INT_CMDS); 5582 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 5583 } 5584 5585 instance->cur_can_queue = instance->max_scsi_cmds; 5586 /* 5587 * Create a pool of commands 5588 */ 5589 if (megasas_alloc_cmds(instance)) 5590 goto fail_alloc_cmds; 5591 5592 /* 5593 * Allocate memory for reply queue. Length of reply queue should 5594 * be _one_ more than the maximum commands handled by the firmware. 5595 * 5596 * Note: When FW completes commands, it places corresponding contex 5597 * values in this circular reply queue. This circular queue is a fairly 5598 * typical producer-consumer queue. FW is the producer (of completed 5599 * commands) and the driver is the consumer. 5600 */ 5601 context_sz = sizeof(u32); 5602 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 5603 5604 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, 5605 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); 5606 5607 if (!instance->reply_queue) { 5608 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 5609 goto fail_reply_queue; 5610 } 5611 5612 if (megasas_issue_init_mfi(instance)) 5613 goto fail_fw_init; 5614 5615 if (megasas_get_ctrl_info(instance)) { 5616 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 5617 "Fail from %s %d\n", instance->unique_id, 5618 __func__, __LINE__); 5619 goto fail_fw_init; 5620 } 5621 5622 instance->fw_support_ieee = 0; 5623 instance->fw_support_ieee = 5624 (instance->instancet->read_fw_status_reg(instance) & 5625 0x04000000); 5626 5627 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 5628 instance->fw_support_ieee); 5629 5630 if (instance->fw_support_ieee) 5631 instance->flag_ieee = 1; 5632 5633 return 0; 5634 5635 fail_fw_init: 5636 5637 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 5638 instance->reply_queue, instance->reply_queue_h); 5639 fail_reply_queue: 5640 megasas_free_cmds(instance); 5641 5642 fail_alloc_cmds: 5643 return 1; 5644 } 5645 5646 static 5647 void megasas_setup_irq_poll(struct megasas_instance *instance) 5648 { 5649 struct megasas_irq_context *irq_ctx; 5650 u32 count, i; 5651 5652 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5653 5654 /* Initialize IRQ poll */ 5655 for (i = 0; i < count; i++) { 5656 irq_ctx = &instance->irq_context[i]; 5657 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); 5658 irq_ctx->irq_poll_scheduled = false; 5659 irq_poll_init(&irq_ctx->irqpoll, 5660 instance->threshold_reply_count, 5661 megasas_irqpoll); 5662 } 5663 } 5664 5665 /* 5666 * megasas_setup_irqs_ioapic - register legacy interrupts. 5667 * @instance: Adapter soft state 5668 * 5669 * Do not enable interrupt, only setup ISRs. 5670 * 5671 * Return 0 on success. 5672 */ 5673 static int 5674 megasas_setup_irqs_ioapic(struct megasas_instance *instance) 5675 { 5676 struct pci_dev *pdev; 5677 5678 pdev = instance->pdev; 5679 instance->irq_context[0].instance = instance; 5680 instance->irq_context[0].MSIxIndex = 0; 5681 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u", 5682 "megasas", instance->host->host_no); 5683 if (request_irq(pci_irq_vector(pdev, 0), 5684 instance->instancet->service_isr, IRQF_SHARED, 5685 instance->irq_context->name, &instance->irq_context[0])) { 5686 dev_err(&instance->pdev->dev, 5687 "Failed to register IRQ from %s %d\n", 5688 __func__, __LINE__); 5689 return -1; 5690 } 5691 instance->perf_mode = MR_LATENCY_PERF_MODE; 5692 instance->low_latency_index_start = 0; 5693 return 0; 5694 } 5695 5696 /** 5697 * megasas_setup_irqs_msix - register MSI-x interrupts. 5698 * @instance: Adapter soft state 5699 * @is_probe: Driver probe check 5700 * 5701 * Do not enable interrupt, only setup ISRs. 5702 * 5703 * Return 0 on success. 5704 */ 5705 static int 5706 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5707 { 5708 int i, j; 5709 struct pci_dev *pdev; 5710 5711 pdev = instance->pdev; 5712 5713 /* Try MSI-x */ 5714 for (i = 0; i < instance->msix_vectors; i++) { 5715 instance->irq_context[i].instance = instance; 5716 instance->irq_context[i].MSIxIndex = i; 5717 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u", 5718 "megasas", instance->host->host_no, i); 5719 if (request_irq(pci_irq_vector(pdev, i), 5720 instance->instancet->service_isr, 0, instance->irq_context[i].name, 5721 &instance->irq_context[i])) { 5722 dev_err(&instance->pdev->dev, 5723 "Failed to register IRQ for vector %d.\n", i); 5724 for (j = 0; j < i; j++) { 5725 if (j < instance->low_latency_index_start) 5726 irq_update_affinity_hint( 5727 pci_irq_vector(pdev, j), NULL); 5728 free_irq(pci_irq_vector(pdev, j), 5729 &instance->irq_context[j]); 5730 } 5731 /* Retry irq register for IO_APIC*/ 5732 instance->msix_vectors = 0; 5733 instance->msix_load_balance = false; 5734 if (is_probe) { 5735 pci_free_irq_vectors(instance->pdev); 5736 return megasas_setup_irqs_ioapic(instance); 5737 } else { 5738 return -1; 5739 } 5740 } 5741 } 5742 5743 return 0; 5744 } 5745 5746 /* 5747 * megasas_destroy_irqs- unregister interrupts. 5748 * @instance: Adapter soft state 5749 * return: void 5750 */ 5751 static void 5752 megasas_destroy_irqs(struct megasas_instance *instance) { 5753 5754 int i; 5755 int count; 5756 struct megasas_irq_context *irq_ctx; 5757 5758 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5759 if (instance->adapter_type != MFI_SERIES) { 5760 for (i = 0; i < count; i++) { 5761 irq_ctx = &instance->irq_context[i]; 5762 irq_poll_disable(&irq_ctx->irqpoll); 5763 } 5764 } 5765 5766 if (instance->msix_vectors) 5767 for (i = 0; i < instance->msix_vectors; i++) { 5768 if (i < instance->low_latency_index_start) 5769 irq_update_affinity_hint( 5770 pci_irq_vector(instance->pdev, i), NULL); 5771 free_irq(pci_irq_vector(instance->pdev, i), 5772 &instance->irq_context[i]); 5773 } 5774 else 5775 free_irq(pci_irq_vector(instance->pdev, 0), 5776 &instance->irq_context[0]); 5777 } 5778 5779 /** 5780 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5781 * @instance: Adapter soft state 5782 * 5783 * Return 0 on success. 5784 */ 5785 void 5786 megasas_setup_jbod_map(struct megasas_instance *instance) 5787 { 5788 int i; 5789 struct fusion_context *fusion = instance->ctrl_context; 5790 size_t pd_seq_map_sz; 5791 5792 pd_seq_map_sz = struct_size((struct MR_PD_CFG_SEQ_NUM_SYNC *)0, seq, 5793 MAX_PHYSICAL_DEVICES); 5794 5795 instance->use_seqnum_jbod_fp = 5796 instance->support_seqnum_jbod_fp; 5797 if (reset_devices || !fusion || 5798 !instance->support_seqnum_jbod_fp) { 5799 dev_info(&instance->pdev->dev, 5800 "JBOD sequence map is disabled %s %d\n", 5801 __func__, __LINE__); 5802 instance->use_seqnum_jbod_fp = false; 5803 return; 5804 } 5805 5806 if (fusion->pd_seq_sync[0]) 5807 goto skip_alloc; 5808 5809 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5810 fusion->pd_seq_sync[i] = dma_alloc_coherent 5811 (&instance->pdev->dev, pd_seq_map_sz, 5812 &fusion->pd_seq_phys[i], GFP_KERNEL); 5813 if (!fusion->pd_seq_sync[i]) { 5814 dev_err(&instance->pdev->dev, 5815 "Failed to allocate memory from %s %d\n", 5816 __func__, __LINE__); 5817 if (i == 1) { 5818 dma_free_coherent(&instance->pdev->dev, 5819 pd_seq_map_sz, fusion->pd_seq_sync[0], 5820 fusion->pd_seq_phys[0]); 5821 fusion->pd_seq_sync[0] = NULL; 5822 } 5823 instance->use_seqnum_jbod_fp = false; 5824 return; 5825 } 5826 } 5827 5828 skip_alloc: 5829 if (!megasas_sync_pd_seq_num(instance, false) && 5830 !megasas_sync_pd_seq_num(instance, true)) 5831 instance->use_seqnum_jbod_fp = true; 5832 else 5833 instance->use_seqnum_jbod_fp = false; 5834 } 5835 5836 static void megasas_setup_reply_map(struct megasas_instance *instance) 5837 { 5838 const struct cpumask *mask; 5839 unsigned int queue, cpu, low_latency_index_start; 5840 5841 low_latency_index_start = instance->low_latency_index_start; 5842 5843 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { 5844 mask = pci_irq_get_affinity(instance->pdev, queue); 5845 if (!mask) 5846 goto fallback; 5847 5848 for_each_cpu(cpu, mask) 5849 instance->reply_map[cpu] = queue; 5850 } 5851 return; 5852 5853 fallback: 5854 queue = low_latency_index_start; 5855 for_each_possible_cpu(cpu) { 5856 instance->reply_map[cpu] = queue; 5857 if (queue == (instance->msix_vectors - 1)) 5858 queue = low_latency_index_start; 5859 else 5860 queue++; 5861 } 5862 } 5863 5864 /** 5865 * megasas_get_device_list - Get the PD and LD device list from FW. 5866 * @instance: Adapter soft state 5867 * @return: Success or failure 5868 * 5869 * Issue DCMDs to Firmware to get the PD and LD list. 5870 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 5871 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 5872 */ 5873 static 5874 int megasas_get_device_list(struct megasas_instance *instance) 5875 { 5876 if (instance->enable_fw_dev_list) { 5877 if (megasas_host_device_list_query(instance, true)) 5878 return FAILED; 5879 } else { 5880 if (megasas_get_pd_list(instance) < 0) { 5881 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5882 return FAILED; 5883 } 5884 5885 if (megasas_ld_list_query(instance, 5886 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { 5887 dev_err(&instance->pdev->dev, "failed to get LD list\n"); 5888 return FAILED; 5889 } 5890 } 5891 5892 return SUCCESS; 5893 } 5894 5895 /** 5896 * megasas_set_high_iops_queue_affinity_and_hint - Set affinity and hint 5897 * for high IOPS queues 5898 * @instance: Adapter soft state 5899 * return: void 5900 */ 5901 static inline void 5902 megasas_set_high_iops_queue_affinity_and_hint(struct megasas_instance *instance) 5903 { 5904 int i; 5905 unsigned int irq; 5906 const struct cpumask *mask; 5907 5908 if (instance->perf_mode == MR_BALANCED_PERF_MODE) { 5909 mask = cpumask_of_node(dev_to_node(&instance->pdev->dev)); 5910 5911 for (i = 0; i < instance->low_latency_index_start; i++) { 5912 irq = pci_irq_vector(instance->pdev, i); 5913 irq_set_affinity_and_hint(irq, mask); 5914 } 5915 } 5916 } 5917 5918 static int 5919 __megasas_alloc_irq_vectors(struct megasas_instance *instance) 5920 { 5921 int i, irq_flags; 5922 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; 5923 struct irq_affinity *descp = &desc; 5924 5925 irq_flags = PCI_IRQ_MSIX; 5926 5927 if (instance->smp_affinity_enable) 5928 irq_flags |= PCI_IRQ_AFFINITY | PCI_IRQ_ALL_TYPES; 5929 else 5930 descp = NULL; 5931 5932 /* Do not allocate msix vectors for poll_queues. 5933 * msix_vectors is always within a range of FW supported reply queue. 5934 */ 5935 i = pci_alloc_irq_vectors_affinity(instance->pdev, 5936 instance->low_latency_index_start, 5937 instance->msix_vectors - instance->iopoll_q_count, irq_flags, descp); 5938 5939 return i; 5940 } 5941 5942 /** 5943 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors 5944 * @instance: Adapter soft state 5945 * return: void 5946 */ 5947 static void 5948 megasas_alloc_irq_vectors(struct megasas_instance *instance) 5949 { 5950 int i; 5951 unsigned int num_msix_req; 5952 5953 instance->iopoll_q_count = 0; 5954 if ((instance->adapter_type != MFI_SERIES) && 5955 poll_queues) { 5956 5957 instance->perf_mode = MR_LATENCY_PERF_MODE; 5958 instance->low_latency_index_start = 1; 5959 5960 /* reserve for default and non-mananged pre-vector. */ 5961 if (instance->msix_vectors > (poll_queues + 2)) 5962 instance->iopoll_q_count = poll_queues; 5963 else 5964 instance->iopoll_q_count = 0; 5965 5966 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 5967 instance->msix_vectors = min(num_msix_req, 5968 instance->msix_vectors); 5969 5970 } 5971 5972 i = __megasas_alloc_irq_vectors(instance); 5973 5974 if (((instance->perf_mode == MR_BALANCED_PERF_MODE) 5975 || instance->iopoll_q_count) && 5976 (i != (instance->msix_vectors - instance->iopoll_q_count))) { 5977 if (instance->msix_vectors) 5978 pci_free_irq_vectors(instance->pdev); 5979 /* Disable Balanced IOPS mode and try realloc vectors */ 5980 instance->perf_mode = MR_LATENCY_PERF_MODE; 5981 instance->low_latency_index_start = 1; 5982 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 5983 5984 instance->msix_vectors = min(num_msix_req, 5985 instance->msix_vectors); 5986 5987 instance->iopoll_q_count = 0; 5988 i = __megasas_alloc_irq_vectors(instance); 5989 5990 } 5991 5992 dev_info(&instance->pdev->dev, 5993 "requested/available msix %d/%d poll_queue %d\n", 5994 instance->msix_vectors - instance->iopoll_q_count, 5995 i, instance->iopoll_q_count); 5996 5997 if (i > 0) 5998 instance->msix_vectors = i; 5999 else 6000 instance->msix_vectors = 0; 6001 6002 if (instance->smp_affinity_enable) 6003 megasas_set_high_iops_queue_affinity_and_hint(instance); 6004 } 6005 6006 /** 6007 * megasas_init_fw - Initializes the FW 6008 * @instance: Adapter soft state 6009 * 6010 * This is the main function for initializing firmware 6011 */ 6012 6013 static int megasas_init_fw(struct megasas_instance *instance) 6014 { 6015 u32 max_sectors_1; 6016 u32 max_sectors_2, tmp_sectors, msix_enable; 6017 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; 6018 resource_size_t base_addr; 6019 void *base_addr_phys; 6020 struct megasas_ctrl_info *ctrl_info = NULL; 6021 unsigned long bar_list; 6022 int i, j, loop; 6023 struct IOV_111 *iovPtr; 6024 struct fusion_context *fusion; 6025 bool intr_coalescing; 6026 unsigned int num_msix_req; 6027 u16 lnksta, speed; 6028 6029 fusion = instance->ctrl_context; 6030 6031 /* Find first memory bar */ 6032 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 6033 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 6034 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 6035 "megasas: LSI")) { 6036 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 6037 return -EBUSY; 6038 } 6039 6040 base_addr = pci_resource_start(instance->pdev, instance->bar); 6041 instance->reg_set = ioremap(base_addr, 8192); 6042 6043 if (!instance->reg_set) { 6044 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 6045 goto fail_ioremap; 6046 } 6047 6048 base_addr_phys = &base_addr; 6049 dev_printk(KERN_DEBUG, &instance->pdev->dev, 6050 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", 6051 instance->bar, base_addr_phys, instance->reg_set); 6052 6053 if (instance->adapter_type != MFI_SERIES) 6054 instance->instancet = &megasas_instance_template_fusion; 6055 else { 6056 switch (instance->pdev->device) { 6057 case PCI_DEVICE_ID_LSI_SAS1078R: 6058 case PCI_DEVICE_ID_LSI_SAS1078DE: 6059 instance->instancet = &megasas_instance_template_ppc; 6060 break; 6061 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 6062 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 6063 instance->instancet = &megasas_instance_template_gen2; 6064 break; 6065 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 6066 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 6067 instance->instancet = &megasas_instance_template_skinny; 6068 break; 6069 case PCI_DEVICE_ID_LSI_SAS1064R: 6070 case PCI_DEVICE_ID_DELL_PERC5: 6071 default: 6072 instance->instancet = &megasas_instance_template_xscale; 6073 instance->pd_list_not_supported = 1; 6074 break; 6075 } 6076 } 6077 6078 if (megasas_transition_to_ready(instance, 0)) { 6079 dev_info(&instance->pdev->dev, 6080 "Failed to transition controller to ready from %s!\n", 6081 __func__); 6082 if (instance->adapter_type != MFI_SERIES) { 6083 status_reg = instance->instancet->read_fw_status_reg( 6084 instance); 6085 if (status_reg & MFI_RESET_ADAPTER) { 6086 if (megasas_adp_reset_wait_for_ready 6087 (instance, true, 0) == FAILED) 6088 goto fail_ready_state; 6089 } else { 6090 goto fail_ready_state; 6091 } 6092 } else { 6093 atomic_set(&instance->fw_reset_no_pci_access, 1); 6094 instance->instancet->adp_reset 6095 (instance, instance->reg_set); 6096 atomic_set(&instance->fw_reset_no_pci_access, 0); 6097 6098 /*waiting for about 30 second before retry*/ 6099 ssleep(30); 6100 6101 if (megasas_transition_to_ready(instance, 0)) 6102 goto fail_ready_state; 6103 } 6104 6105 dev_info(&instance->pdev->dev, 6106 "FW restarted successfully from %s!\n", 6107 __func__); 6108 } 6109 6110 megasas_init_ctrl_params(instance); 6111 6112 if (megasas_set_dma_mask(instance)) 6113 goto fail_ready_state; 6114 6115 if (megasas_alloc_ctrl_mem(instance)) 6116 goto fail_alloc_dma_buf; 6117 6118 if (megasas_alloc_ctrl_dma_buffers(instance)) 6119 goto fail_alloc_dma_buf; 6120 6121 fusion = instance->ctrl_context; 6122 6123 if (instance->adapter_type >= VENTURA_SERIES) { 6124 scratch_pad_2 = 6125 megasas_readl(instance, 6126 &instance->reg_set->outbound_scratch_pad_2); 6127 instance->max_raid_mapsize = ((scratch_pad_2 >> 6128 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 6129 MR_MAX_RAID_MAP_SIZE_MASK); 6130 } 6131 6132 instance->enable_sdev_max_qd = enable_sdev_max_qd; 6133 6134 switch (instance->adapter_type) { 6135 case VENTURA_SERIES: 6136 fusion->pcie_bw_limitation = true; 6137 break; 6138 case AERO_SERIES: 6139 fusion->r56_div_offload = true; 6140 break; 6141 default: 6142 break; 6143 } 6144 6145 /* Check if MSI-X is supported while in ready state */ 6146 msix_enable = (instance->instancet->read_fw_status_reg(instance) & 6147 0x4000000) >> 0x1a; 6148 if (msix_enable && !msix_disable) { 6149 6150 scratch_pad_1 = megasas_readl 6151 (instance, &instance->reg_set->outbound_scratch_pad_1); 6152 /* Check max MSI-X vectors */ 6153 if (fusion) { 6154 if (instance->adapter_type == THUNDERBOLT_SERIES) { 6155 /* Thunderbolt Series*/ 6156 instance->msix_vectors = (scratch_pad_1 6157 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 6158 } else { 6159 instance->msix_vectors = ((scratch_pad_1 6160 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 6161 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 6162 6163 /* 6164 * For Invader series, > 8 MSI-x vectors 6165 * supported by FW/HW implies combined 6166 * reply queue mode is enabled. 6167 * For Ventura series, > 16 MSI-x vectors 6168 * supported by FW/HW implies combined 6169 * reply queue mode is enabled. 6170 */ 6171 switch (instance->adapter_type) { 6172 case INVADER_SERIES: 6173 if (instance->msix_vectors > 8) 6174 instance->msix_combined = true; 6175 break; 6176 case AERO_SERIES: 6177 case VENTURA_SERIES: 6178 if (instance->msix_vectors > 16) 6179 instance->msix_combined = true; 6180 break; 6181 } 6182 6183 if (rdpq_enable) 6184 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? 6185 1 : 0; 6186 6187 if (instance->adapter_type >= INVADER_SERIES && 6188 !instance->msix_combined) { 6189 instance->msix_load_balance = true; 6190 instance->smp_affinity_enable = false; 6191 } 6192 6193 /* Save 1-15 reply post index address to local memory 6194 * Index 0 is already saved from reg offset 6195 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 6196 */ 6197 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 6198 instance->reply_post_host_index_addr[loop] = 6199 (u32 __iomem *) 6200 ((u8 __iomem *)instance->reg_set + 6201 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 6202 + (loop * 0x10)); 6203 } 6204 } 6205 6206 dev_info(&instance->pdev->dev, 6207 "firmware supports msix\t: (%d)", 6208 instance->msix_vectors); 6209 if (msix_vectors) 6210 instance->msix_vectors = min(msix_vectors, 6211 instance->msix_vectors); 6212 } else /* MFI adapters */ 6213 instance->msix_vectors = 1; 6214 6215 6216 /* 6217 * For Aero (if some conditions are met), driver will configure a 6218 * few additional reply queues with interrupt coalescing enabled. 6219 * These queues with interrupt coalescing enabled are called 6220 * High IOPS queues and rest of reply queues (based on number of 6221 * logical CPUs) are termed as Low latency queues. 6222 * 6223 * Total Number of reply queues = High IOPS queues + low latency queues 6224 * 6225 * For rest of fusion adapters, 1 additional reply queue will be 6226 * reserved for management commands, rest of reply queues 6227 * (based on number of logical CPUs) will be used for IOs and 6228 * referenced as IO queues. 6229 * Total Number of reply queues = 1 + IO queues 6230 * 6231 * MFI adapters supports single MSI-x so single reply queue 6232 * will be used for IO and management commands. 6233 */ 6234 6235 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? 6236 true : false; 6237 if (intr_coalescing && 6238 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) && 6239 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) 6240 instance->perf_mode = MR_BALANCED_PERF_MODE; 6241 else 6242 instance->perf_mode = MR_LATENCY_PERF_MODE; 6243 6244 6245 if (instance->adapter_type == AERO_SERIES) { 6246 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); 6247 speed = lnksta & PCI_EXP_LNKSTA_CLS; 6248 6249 /* 6250 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate 6251 * in latency perf mode and enable R1 PCI bandwidth algorithm 6252 */ 6253 if (speed < 0x4) { 6254 instance->perf_mode = MR_LATENCY_PERF_MODE; 6255 fusion->pcie_bw_limitation = true; 6256 } 6257 6258 /* 6259 * Performance mode settings provided through module parameter-perf_mode will 6260 * take affect only for: 6261 * 1. Aero family of adapters. 6262 * 2. When user sets module parameter- perf_mode in range of 0-2. 6263 */ 6264 if ((perf_mode >= MR_BALANCED_PERF_MODE) && 6265 (perf_mode <= MR_LATENCY_PERF_MODE)) 6266 instance->perf_mode = perf_mode; 6267 /* 6268 * If intr coalescing is not supported by controller FW, then IOPS 6269 * and Balanced modes are not feasible. 6270 */ 6271 if (!intr_coalescing) 6272 instance->perf_mode = MR_LATENCY_PERF_MODE; 6273 6274 } 6275 6276 if (instance->perf_mode == MR_BALANCED_PERF_MODE) 6277 instance->low_latency_index_start = 6278 MR_HIGH_IOPS_QUEUE_COUNT; 6279 else 6280 instance->low_latency_index_start = 1; 6281 6282 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 6283 6284 instance->msix_vectors = min(num_msix_req, 6285 instance->msix_vectors); 6286 6287 megasas_alloc_irq_vectors(instance); 6288 if (!instance->msix_vectors) 6289 instance->msix_load_balance = false; 6290 } 6291 /* 6292 * MSI-X host index 0 is common for all adapter. 6293 * It is used for all MPT based Adapters. 6294 */ 6295 if (instance->msix_combined) { 6296 instance->reply_post_host_index_addr[0] = 6297 (u32 *)((u8 *)instance->reg_set + 6298 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 6299 } else { 6300 instance->reply_post_host_index_addr[0] = 6301 (u32 *)((u8 *)instance->reg_set + 6302 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 6303 } 6304 6305 if (!instance->msix_vectors) { 6306 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); 6307 if (i < 0) 6308 goto fail_init_adapter; 6309 } 6310 6311 megasas_setup_reply_map(instance); 6312 6313 dev_info(&instance->pdev->dev, 6314 "current msix/online cpus\t: (%d/%d)\n", 6315 instance->msix_vectors, (unsigned int)num_online_cpus()); 6316 dev_info(&instance->pdev->dev, 6317 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 6318 6319 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6320 (unsigned long)instance); 6321 6322 /* 6323 * Below are default value for legacy Firmware. 6324 * non-fusion based controllers 6325 */ 6326 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 6327 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 6328 /* Get operational params, sge flags, send init cmd to controller */ 6329 if (instance->instancet->init_adapter(instance)) 6330 goto fail_init_adapter; 6331 6332 if (instance->adapter_type >= VENTURA_SERIES) { 6333 scratch_pad_3 = 6334 megasas_readl(instance, 6335 &instance->reg_set->outbound_scratch_pad_3); 6336 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= 6337 MR_DEFAULT_NVME_PAGE_SHIFT) 6338 instance->nvme_page_size = 6339 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); 6340 6341 dev_info(&instance->pdev->dev, 6342 "NVME page size\t: (%d)\n", instance->nvme_page_size); 6343 } 6344 6345 if (instance->msix_vectors ? 6346 megasas_setup_irqs_msix(instance, 1) : 6347 megasas_setup_irqs_ioapic(instance)) 6348 goto fail_init_adapter; 6349 6350 if (instance->adapter_type != MFI_SERIES) 6351 megasas_setup_irq_poll(instance); 6352 6353 instance->instancet->enable_intr(instance); 6354 6355 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 6356 6357 megasas_setup_jbod_map(instance); 6358 6359 if (megasas_get_device_list(instance) != SUCCESS) { 6360 dev_err(&instance->pdev->dev, 6361 "%s: megasas_get_device_list failed\n", 6362 __func__); 6363 goto fail_get_ld_pd_list; 6364 } 6365 6366 /* stream detection initialization */ 6367 if (instance->adapter_type >= VENTURA_SERIES) { 6368 fusion->stream_detect_by_ld = 6369 kcalloc(MAX_LOGICAL_DRIVES_EXT, 6370 sizeof(struct LD_STREAM_DETECT *), 6371 GFP_KERNEL); 6372 if (!fusion->stream_detect_by_ld) { 6373 dev_err(&instance->pdev->dev, 6374 "unable to allocate stream detection for pool of LDs\n"); 6375 goto fail_get_ld_pd_list; 6376 } 6377 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 6378 fusion->stream_detect_by_ld[i] = 6379 kzalloc(sizeof(struct LD_STREAM_DETECT), 6380 GFP_KERNEL); 6381 if (!fusion->stream_detect_by_ld[i]) { 6382 dev_err(&instance->pdev->dev, 6383 "unable to allocate stream detect by LD\n "); 6384 for (j = 0; j < i; ++j) 6385 kfree(fusion->stream_detect_by_ld[j]); 6386 kfree(fusion->stream_detect_by_ld); 6387 fusion->stream_detect_by_ld = NULL; 6388 goto fail_get_ld_pd_list; 6389 } 6390 fusion->stream_detect_by_ld[i]->mru_bit_map 6391 = MR_STREAM_BITMAP; 6392 } 6393 } 6394 6395 /* 6396 * Compute the max allowed sectors per IO: The controller info has two 6397 * limits on max sectors. Driver should use the minimum of these two. 6398 * 6399 * 1 << stripe_sz_ops.min = max sectors per strip 6400 * 6401 * Note that older firmwares ( < FW ver 30) didn't report information 6402 * to calculate max_sectors_1. So the number ended up as zero always. 6403 */ 6404 tmp_sectors = 0; 6405 ctrl_info = instance->ctrl_info_buf; 6406 6407 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 6408 le16_to_cpu(ctrl_info->max_strips_per_io); 6409 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 6410 6411 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 6412 6413 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 6414 instance->passive = ctrl_info->cluster.passive; 6415 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 6416 instance->UnevenSpanSupport = 6417 ctrl_info->adapterOperations2.supportUnevenSpans; 6418 if (instance->UnevenSpanSupport) { 6419 struct fusion_context *fusion = instance->ctrl_context; 6420 if (MR_ValidateMapInfo(instance, instance->map_id)) 6421 fusion->fast_path_io = 1; 6422 else 6423 fusion->fast_path_io = 0; 6424 6425 } 6426 if (ctrl_info->host_interface.SRIOV) { 6427 instance->requestorId = ctrl_info->iov.requestorId; 6428 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 6429 if (!ctrl_info->adapterOperations2.activePassive) 6430 instance->PlasmaFW111 = 1; 6431 6432 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 6433 instance->PlasmaFW111 ? "1.11" : "new"); 6434 6435 if (instance->PlasmaFW111) { 6436 iovPtr = (struct IOV_111 *) 6437 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 6438 instance->requestorId = iovPtr->requestorId; 6439 } 6440 } 6441 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 6442 instance->requestorId); 6443 } 6444 6445 instance->crash_dump_fw_support = 6446 ctrl_info->adapterOperations3.supportCrashDump; 6447 instance->crash_dump_drv_support = 6448 (instance->crash_dump_fw_support && 6449 instance->crash_dump_buf); 6450 if (instance->crash_dump_drv_support) 6451 megasas_set_crash_dump_params(instance, 6452 MR_CRASH_BUF_TURN_OFF); 6453 6454 else { 6455 if (instance->crash_dump_buf) 6456 dma_free_coherent(&instance->pdev->dev, 6457 CRASH_DMA_BUF_SIZE, 6458 instance->crash_dump_buf, 6459 instance->crash_dump_h); 6460 instance->crash_dump_buf = NULL; 6461 } 6462 6463 if (instance->snapdump_wait_time) { 6464 megasas_get_snapdump_properties(instance); 6465 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", 6466 instance->snapdump_wait_time); 6467 } 6468 6469 dev_info(&instance->pdev->dev, 6470 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 6471 le16_to_cpu(ctrl_info->pci.vendor_id), 6472 le16_to_cpu(ctrl_info->pci.device_id), 6473 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 6474 le16_to_cpu(ctrl_info->pci.sub_device_id)); 6475 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 6476 instance->UnevenSpanSupport ? "yes" : "no"); 6477 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 6478 instance->crash_dump_drv_support ? "yes" : "no"); 6479 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", 6480 instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); 6481 6482 instance->max_sectors_per_req = instance->max_num_sge * 6483 SGE_BUFFER_SIZE / 512; 6484 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 6485 instance->max_sectors_per_req = tmp_sectors; 6486 6487 /* Check for valid throttlequeuedepth module parameter */ 6488 if (throttlequeuedepth && 6489 throttlequeuedepth <= instance->max_scsi_cmds) 6490 instance->throttlequeuedepth = throttlequeuedepth; 6491 else 6492 instance->throttlequeuedepth = 6493 MEGASAS_THROTTLE_QUEUE_DEPTH; 6494 6495 if ((resetwaittime < 1) || 6496 (resetwaittime > MEGASAS_RESET_WAIT_TIME)) 6497 resetwaittime = MEGASAS_RESET_WAIT_TIME; 6498 6499 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 6500 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 6501 6502 /* Launch SR-IOV heartbeat timer */ 6503 if (instance->requestorId) { 6504 if (!megasas_sriov_start_heartbeat(instance, 1)) { 6505 megasas_start_timer(instance); 6506 } else { 6507 instance->skip_heartbeat_timer_del = 1; 6508 goto fail_get_ld_pd_list; 6509 } 6510 } 6511 6512 /* 6513 * Create and start watchdog thread which will monitor 6514 * controller state every 1 sec and trigger OCR when 6515 * it enters fault state 6516 */ 6517 if (instance->adapter_type != MFI_SERIES) 6518 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 6519 goto fail_start_watchdog; 6520 6521 return 0; 6522 6523 fail_start_watchdog: 6524 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6525 del_timer_sync(&instance->sriov_heartbeat_timer); 6526 fail_get_ld_pd_list: 6527 instance->instancet->disable_intr(instance); 6528 megasas_destroy_irqs(instance); 6529 fail_init_adapter: 6530 if (instance->msix_vectors) 6531 pci_free_irq_vectors(instance->pdev); 6532 instance->msix_vectors = 0; 6533 fail_alloc_dma_buf: 6534 megasas_free_ctrl_dma_buffers(instance); 6535 megasas_free_ctrl_mem(instance); 6536 fail_ready_state: 6537 iounmap(instance->reg_set); 6538 6539 fail_ioremap: 6540 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6541 6542 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6543 __func__, __LINE__); 6544 return -EINVAL; 6545 } 6546 6547 /** 6548 * megasas_release_mfi - Reverses the FW initialization 6549 * @instance: Adapter soft state 6550 */ 6551 static void megasas_release_mfi(struct megasas_instance *instance) 6552 { 6553 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 6554 6555 if (instance->reply_queue) 6556 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 6557 instance->reply_queue, instance->reply_queue_h); 6558 6559 megasas_free_cmds(instance); 6560 6561 iounmap(instance->reg_set); 6562 6563 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6564 } 6565 6566 /** 6567 * megasas_get_seq_num - Gets latest event sequence numbers 6568 * @instance: Adapter soft state 6569 * @eli: FW event log sequence numbers information 6570 * 6571 * FW maintains a log of all events in a non-volatile area. Upper layers would 6572 * usually find out the latest sequence number of the events, the seq number at 6573 * the boot etc. They would "read" all the events below the latest seq number 6574 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 6575 * number), they would subsribe to AEN (asynchronous event notification) and 6576 * wait for the events to happen. 6577 */ 6578 static int 6579 megasas_get_seq_num(struct megasas_instance *instance, 6580 struct megasas_evt_log_info *eli) 6581 { 6582 struct megasas_cmd *cmd; 6583 struct megasas_dcmd_frame *dcmd; 6584 struct megasas_evt_log_info *el_info; 6585 dma_addr_t el_info_h = 0; 6586 int ret; 6587 6588 cmd = megasas_get_cmd(instance); 6589 6590 if (!cmd) { 6591 return -ENOMEM; 6592 } 6593 6594 dcmd = &cmd->frame->dcmd; 6595 el_info = dma_alloc_coherent(&instance->pdev->dev, 6596 sizeof(struct megasas_evt_log_info), 6597 &el_info_h, GFP_KERNEL); 6598 if (!el_info) { 6599 megasas_return_cmd(instance, cmd); 6600 return -ENOMEM; 6601 } 6602 6603 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6604 6605 dcmd->cmd = MFI_CMD_DCMD; 6606 dcmd->cmd_status = 0x0; 6607 dcmd->sge_count = 1; 6608 dcmd->flags = MFI_FRAME_DIR_READ; 6609 dcmd->timeout = 0; 6610 dcmd->pad_0 = 0; 6611 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 6612 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 6613 6614 megasas_set_dma_settings(instance, dcmd, el_info_h, 6615 sizeof(struct megasas_evt_log_info)); 6616 6617 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 6618 if (ret != DCMD_SUCCESS) { 6619 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6620 __func__, __LINE__); 6621 goto dcmd_failed; 6622 } 6623 6624 /* 6625 * Copy the data back into callers buffer 6626 */ 6627 eli->newest_seq_num = el_info->newest_seq_num; 6628 eli->oldest_seq_num = el_info->oldest_seq_num; 6629 eli->clear_seq_num = el_info->clear_seq_num; 6630 eli->shutdown_seq_num = el_info->shutdown_seq_num; 6631 eli->boot_seq_num = el_info->boot_seq_num; 6632 6633 dcmd_failed: 6634 dma_free_coherent(&instance->pdev->dev, 6635 sizeof(struct megasas_evt_log_info), 6636 el_info, el_info_h); 6637 6638 megasas_return_cmd(instance, cmd); 6639 6640 return ret; 6641 } 6642 6643 /** 6644 * megasas_register_aen - Registers for asynchronous event notification 6645 * @instance: Adapter soft state 6646 * @seq_num: The starting sequence number 6647 * @class_locale_word: Class of the event 6648 * 6649 * This function subscribes for AEN for events beyond the @seq_num. It requests 6650 * to be notified if and only if the event is of type @class_locale 6651 */ 6652 static int 6653 megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 6654 u32 class_locale_word) 6655 { 6656 int ret_val; 6657 struct megasas_cmd *cmd; 6658 struct megasas_dcmd_frame *dcmd; 6659 union megasas_evt_class_locale curr_aen; 6660 union megasas_evt_class_locale prev_aen; 6661 6662 /* 6663 * If there an AEN pending already (aen_cmd), check if the 6664 * class_locale of that pending AEN is inclusive of the new 6665 * AEN request we currently have. If it is, then we don't have 6666 * to do anything. In other words, whichever events the current 6667 * AEN request is subscribing to, have already been subscribed 6668 * to. 6669 * 6670 * If the old_cmd is _not_ inclusive, then we have to abort 6671 * that command, form a class_locale that is superset of both 6672 * old and current and re-issue to the FW 6673 */ 6674 6675 curr_aen.word = class_locale_word; 6676 6677 if (instance->aen_cmd) { 6678 6679 prev_aen.word = 6680 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 6681 6682 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || 6683 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { 6684 dev_info(&instance->pdev->dev, 6685 "%s %d out of range class %d send by application\n", 6686 __func__, __LINE__, curr_aen.members.class); 6687 return 0; 6688 } 6689 6690 /* 6691 * A class whose enum value is smaller is inclusive of all 6692 * higher values. If a PROGRESS (= -1) was previously 6693 * registered, then a new registration requests for higher 6694 * classes need not be sent to FW. They are automatically 6695 * included. 6696 * 6697 * Locale numbers don't have such hierarchy. They are bitmap 6698 * values 6699 */ 6700 if ((prev_aen.members.class <= curr_aen.members.class) && 6701 !((prev_aen.members.locale & curr_aen.members.locale) ^ 6702 curr_aen.members.locale)) { 6703 /* 6704 * Previously issued event registration includes 6705 * current request. Nothing to do. 6706 */ 6707 return 0; 6708 } else { 6709 curr_aen.members.locale |= prev_aen.members.locale; 6710 6711 if (prev_aen.members.class < curr_aen.members.class) 6712 curr_aen.members.class = prev_aen.members.class; 6713 6714 instance->aen_cmd->abort_aen = 1; 6715 ret_val = megasas_issue_blocked_abort_cmd(instance, 6716 instance-> 6717 aen_cmd, 30); 6718 6719 if (ret_val) { 6720 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 6721 "previous AEN command\n"); 6722 return ret_val; 6723 } 6724 } 6725 } 6726 6727 cmd = megasas_get_cmd(instance); 6728 6729 if (!cmd) 6730 return -ENOMEM; 6731 6732 dcmd = &cmd->frame->dcmd; 6733 6734 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 6735 6736 /* 6737 * Prepare DCMD for aen registration 6738 */ 6739 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6740 6741 dcmd->cmd = MFI_CMD_DCMD; 6742 dcmd->cmd_status = 0x0; 6743 dcmd->sge_count = 1; 6744 dcmd->flags = MFI_FRAME_DIR_READ; 6745 dcmd->timeout = 0; 6746 dcmd->pad_0 = 0; 6747 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 6748 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 6749 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 6750 instance->last_seq_num = seq_num; 6751 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 6752 6753 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, 6754 sizeof(struct megasas_evt_detail)); 6755 6756 if (instance->aen_cmd != NULL) { 6757 megasas_return_cmd(instance, cmd); 6758 return 0; 6759 } 6760 6761 /* 6762 * Store reference to the cmd used to register for AEN. When an 6763 * application wants us to register for AEN, we have to abort this 6764 * cmd and re-register with a new EVENT LOCALE supplied by that app 6765 */ 6766 instance->aen_cmd = cmd; 6767 6768 /* 6769 * Issue the aen registration frame 6770 */ 6771 instance->instancet->issue_dcmd(instance, cmd); 6772 6773 return 0; 6774 } 6775 6776 /* megasas_get_target_prop - Send DCMD with below details to firmware. 6777 * 6778 * This DCMD will fetch few properties of LD/system PD defined 6779 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 6780 * 6781 * DCMD send by drivers whenever new target is added to the OS. 6782 * 6783 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 6784 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 6785 * 0 = system PD, 1 = LD. 6786 * dcmd.mbox.s[1] - TargetID for LD/system PD. 6787 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 6788 * 6789 * @instance: Adapter soft state 6790 * @sdev: OS provided scsi device 6791 * 6792 * Returns 0 on success non-zero on failure. 6793 */ 6794 int 6795 megasas_get_target_prop(struct megasas_instance *instance, 6796 struct scsi_device *sdev) 6797 { 6798 int ret; 6799 struct megasas_cmd *cmd; 6800 struct megasas_dcmd_frame *dcmd; 6801 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 6802 sdev->id; 6803 6804 cmd = megasas_get_cmd(instance); 6805 6806 if (!cmd) { 6807 dev_err(&instance->pdev->dev, 6808 "Failed to get cmd %s\n", __func__); 6809 return -ENOMEM; 6810 } 6811 6812 dcmd = &cmd->frame->dcmd; 6813 6814 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 6815 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6816 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 6817 6818 dcmd->mbox.s[1] = cpu_to_le16(targetId); 6819 dcmd->cmd = MFI_CMD_DCMD; 6820 dcmd->cmd_status = 0xFF; 6821 dcmd->sge_count = 1; 6822 dcmd->flags = MFI_FRAME_DIR_READ; 6823 dcmd->timeout = 0; 6824 dcmd->pad_0 = 0; 6825 dcmd->data_xfer_len = 6826 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 6827 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 6828 6829 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, 6830 sizeof(struct MR_TARGET_PROPERTIES)); 6831 6832 if ((instance->adapter_type != MFI_SERIES) && 6833 !instance->mask_interrupts) 6834 ret = megasas_issue_blocked_cmd(instance, 6835 cmd, MFI_IO_TIMEOUT_SECS); 6836 else 6837 ret = megasas_issue_polled(instance, cmd); 6838 6839 switch (ret) { 6840 case DCMD_TIMEOUT: 6841 switch (dcmd_timeout_ocr_possible(instance)) { 6842 case INITIATE_OCR: 6843 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 6844 mutex_unlock(&instance->reset_mutex); 6845 megasas_reset_fusion(instance->host, 6846 MFI_IO_TIMEOUT_OCR); 6847 mutex_lock(&instance->reset_mutex); 6848 break; 6849 case KILL_ADAPTER: 6850 megaraid_sas_kill_hba(instance); 6851 break; 6852 case IGNORE_TIMEOUT: 6853 dev_info(&instance->pdev->dev, 6854 "Ignore DCMD timeout: %s %d\n", 6855 __func__, __LINE__); 6856 break; 6857 } 6858 break; 6859 6860 default: 6861 megasas_return_cmd(instance, cmd); 6862 } 6863 if (ret != DCMD_SUCCESS) 6864 dev_err(&instance->pdev->dev, 6865 "return from %s %d return value %d\n", 6866 __func__, __LINE__, ret); 6867 6868 return ret; 6869 } 6870 6871 /** 6872 * megasas_start_aen - Subscribes to AEN during driver load time 6873 * @instance: Adapter soft state 6874 */ 6875 static int megasas_start_aen(struct megasas_instance *instance) 6876 { 6877 struct megasas_evt_log_info eli; 6878 union megasas_evt_class_locale class_locale; 6879 6880 /* 6881 * Get the latest sequence number from FW 6882 */ 6883 memset(&eli, 0, sizeof(eli)); 6884 6885 if (megasas_get_seq_num(instance, &eli)) 6886 return -1; 6887 6888 /* 6889 * Register AEN with FW for latest sequence number plus 1 6890 */ 6891 class_locale.members.reserved = 0; 6892 class_locale.members.locale = MR_EVT_LOCALE_ALL; 6893 class_locale.members.class = MR_EVT_CLASS_DEBUG; 6894 6895 return megasas_register_aen(instance, 6896 le32_to_cpu(eli.newest_seq_num) + 1, 6897 class_locale.word); 6898 } 6899 6900 /** 6901 * megasas_io_attach - Attaches this driver to SCSI mid-layer 6902 * @instance: Adapter soft state 6903 */ 6904 static int megasas_io_attach(struct megasas_instance *instance) 6905 { 6906 struct Scsi_Host *host = instance->host; 6907 6908 /* 6909 * Export parameters required by SCSI mid-layer 6910 */ 6911 host->unique_id = instance->unique_id; 6912 host->can_queue = instance->max_scsi_cmds; 6913 host->this_id = instance->init_id; 6914 host->sg_tablesize = instance->max_num_sge; 6915 6916 if (instance->fw_support_ieee) 6917 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 6918 6919 /* 6920 * Check if the module parameter value for max_sectors can be used 6921 */ 6922 if (max_sectors && max_sectors < instance->max_sectors_per_req) 6923 instance->max_sectors_per_req = max_sectors; 6924 else { 6925 if (max_sectors) { 6926 if (((instance->pdev->device == 6927 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 6928 (instance->pdev->device == 6929 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 6930 (max_sectors <= MEGASAS_MAX_SECTORS)) { 6931 instance->max_sectors_per_req = max_sectors; 6932 } else { 6933 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 6934 "and <= %d (or < 1MB for GEN2 controller)\n", 6935 instance->max_sectors_per_req); 6936 } 6937 } 6938 } 6939 6940 host->max_sectors = instance->max_sectors_per_req; 6941 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 6942 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 6943 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 6944 host->max_lun = MEGASAS_MAX_LUN; 6945 host->max_cmd_len = 16; 6946 6947 /* Use shared host tagset only for fusion adaptors 6948 * if there are managed interrupts (smp affinity enabled case). 6949 * Single msix_vectors in kdump, so shared host tag is also disabled. 6950 */ 6951 6952 host->host_tagset = 0; 6953 host->nr_hw_queues = 1; 6954 6955 if ((instance->adapter_type != MFI_SERIES) && 6956 (instance->msix_vectors > instance->low_latency_index_start) && 6957 host_tagset_enable && 6958 instance->smp_affinity_enable) { 6959 host->host_tagset = 1; 6960 host->nr_hw_queues = instance->msix_vectors - 6961 instance->low_latency_index_start + instance->iopoll_q_count; 6962 if (instance->iopoll_q_count) 6963 host->nr_maps = 3; 6964 } else { 6965 instance->iopoll_q_count = 0; 6966 } 6967 6968 dev_info(&instance->pdev->dev, 6969 "Max firmware commands: %d shared with default " 6970 "hw_queues = %d poll_queues %d\n", instance->max_fw_cmds, 6971 host->nr_hw_queues - instance->iopoll_q_count, 6972 instance->iopoll_q_count); 6973 /* 6974 * Notify the mid-layer about the new controller 6975 */ 6976 if (scsi_add_host(host, &instance->pdev->dev)) { 6977 dev_err(&instance->pdev->dev, 6978 "Failed to add host from %s %d\n", 6979 __func__, __LINE__); 6980 return -ENODEV; 6981 } 6982 6983 return 0; 6984 } 6985 6986 /** 6987 * megasas_set_dma_mask - Set DMA mask for supported controllers 6988 * 6989 * @instance: Adapter soft state 6990 * Description: 6991 * 6992 * For Ventura, driver/FW will operate in 63bit DMA addresses. 6993 * 6994 * For invader- 6995 * By default, driver/FW will operate in 32bit DMA addresses 6996 * for consistent DMA mapping but if 32 bit consistent 6997 * DMA mask fails, driver will try with 63 bit consistent 6998 * mask provided FW is true 63bit DMA capable 6999 * 7000 * For older controllers(Thunderbolt and MFI based adapters)- 7001 * driver/FW will operate in 32 bit consistent DMA addresses. 7002 */ 7003 static int 7004 megasas_set_dma_mask(struct megasas_instance *instance) 7005 { 7006 u64 consistent_mask; 7007 struct pci_dev *pdev; 7008 u32 scratch_pad_1; 7009 7010 pdev = instance->pdev; 7011 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? 7012 DMA_BIT_MASK(63) : DMA_BIT_MASK(32); 7013 7014 if (IS_DMA64) { 7015 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && 7016 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 7017 goto fail_set_dma_mask; 7018 7019 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && 7020 (dma_set_coherent_mask(&pdev->dev, consistent_mask) && 7021 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { 7022 /* 7023 * If 32 bit DMA mask fails, then try for 64 bit mask 7024 * for FW capable of handling 64 bit DMA. 7025 */ 7026 scratch_pad_1 = megasas_readl 7027 (instance, &instance->reg_set->outbound_scratch_pad_1); 7028 7029 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) 7030 goto fail_set_dma_mask; 7031 else if (dma_set_mask_and_coherent(&pdev->dev, 7032 DMA_BIT_MASK(63))) 7033 goto fail_set_dma_mask; 7034 } 7035 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 7036 goto fail_set_dma_mask; 7037 7038 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) 7039 instance->consistent_mask_64bit = false; 7040 else 7041 instance->consistent_mask_64bit = true; 7042 7043 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", 7044 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), 7045 (instance->consistent_mask_64bit ? "63" : "32")); 7046 7047 return 0; 7048 7049 fail_set_dma_mask: 7050 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 7051 return -1; 7052 7053 } 7054 7055 /* 7056 * megasas_set_adapter_type - Set adapter type. 7057 * Supported controllers can be divided in 7058 * different categories- 7059 * enum MR_ADAPTER_TYPE { 7060 * MFI_SERIES = 1, 7061 * THUNDERBOLT_SERIES = 2, 7062 * INVADER_SERIES = 3, 7063 * VENTURA_SERIES = 4, 7064 * AERO_SERIES = 5, 7065 * }; 7066 * @instance: Adapter soft state 7067 * return: void 7068 */ 7069 static inline void megasas_set_adapter_type(struct megasas_instance *instance) 7070 { 7071 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && 7072 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { 7073 instance->adapter_type = MFI_SERIES; 7074 } else { 7075 switch (instance->pdev->device) { 7076 case PCI_DEVICE_ID_LSI_AERO_10E1: 7077 case PCI_DEVICE_ID_LSI_AERO_10E2: 7078 case PCI_DEVICE_ID_LSI_AERO_10E5: 7079 case PCI_DEVICE_ID_LSI_AERO_10E6: 7080 instance->adapter_type = AERO_SERIES; 7081 break; 7082 case PCI_DEVICE_ID_LSI_VENTURA: 7083 case PCI_DEVICE_ID_LSI_CRUSADER: 7084 case PCI_DEVICE_ID_LSI_HARPOON: 7085 case PCI_DEVICE_ID_LSI_TOMCAT: 7086 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 7087 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 7088 instance->adapter_type = VENTURA_SERIES; 7089 break; 7090 case PCI_DEVICE_ID_LSI_FUSION: 7091 case PCI_DEVICE_ID_LSI_PLASMA: 7092 instance->adapter_type = THUNDERBOLT_SERIES; 7093 break; 7094 case PCI_DEVICE_ID_LSI_INVADER: 7095 case PCI_DEVICE_ID_LSI_INTRUDER: 7096 case PCI_DEVICE_ID_LSI_INTRUDER_24: 7097 case PCI_DEVICE_ID_LSI_CUTLASS_52: 7098 case PCI_DEVICE_ID_LSI_CUTLASS_53: 7099 case PCI_DEVICE_ID_LSI_FURY: 7100 instance->adapter_type = INVADER_SERIES; 7101 break; 7102 default: /* For all other supported controllers */ 7103 instance->adapter_type = MFI_SERIES; 7104 break; 7105 } 7106 } 7107 } 7108 7109 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) 7110 { 7111 instance->producer = dma_alloc_coherent(&instance->pdev->dev, 7112 sizeof(u32), &instance->producer_h, GFP_KERNEL); 7113 instance->consumer = dma_alloc_coherent(&instance->pdev->dev, 7114 sizeof(u32), &instance->consumer_h, GFP_KERNEL); 7115 7116 if (!instance->producer || !instance->consumer) { 7117 dev_err(&instance->pdev->dev, 7118 "Failed to allocate memory for producer, consumer\n"); 7119 return -1; 7120 } 7121 7122 *instance->producer = 0; 7123 *instance->consumer = 0; 7124 return 0; 7125 } 7126 7127 /** 7128 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data 7129 * structures which are not common across MFI 7130 * adapters and fusion adapters. 7131 * For MFI based adapters, allocate producer and 7132 * consumer buffers. For fusion adapters, allocate 7133 * memory for fusion context. 7134 * @instance: Adapter soft state 7135 * return: 0 for SUCCESS 7136 */ 7137 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) 7138 { 7139 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), 7140 GFP_KERNEL); 7141 if (!instance->reply_map) 7142 return -ENOMEM; 7143 7144 switch (instance->adapter_type) { 7145 case MFI_SERIES: 7146 if (megasas_alloc_mfi_ctrl_mem(instance)) 7147 return -ENOMEM; 7148 break; 7149 case AERO_SERIES: 7150 case VENTURA_SERIES: 7151 case THUNDERBOLT_SERIES: 7152 case INVADER_SERIES: 7153 if (megasas_alloc_fusion_context(instance)) 7154 return -ENOMEM; 7155 break; 7156 } 7157 7158 return 0; 7159 } 7160 7161 /* 7162 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and 7163 * producer, consumer buffers for MFI adapters 7164 * 7165 * @instance - Adapter soft instance 7166 * 7167 */ 7168 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) 7169 { 7170 kfree(instance->reply_map); 7171 if (instance->adapter_type == MFI_SERIES) { 7172 if (instance->producer) 7173 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7174 instance->producer, 7175 instance->producer_h); 7176 if (instance->consumer) 7177 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7178 instance->consumer, 7179 instance->consumer_h); 7180 } else { 7181 megasas_free_fusion_context(instance); 7182 } 7183 } 7184 7185 /** 7186 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during 7187 * driver load time 7188 * 7189 * @instance: Adapter soft instance 7190 * 7191 * @return: O for SUCCESS 7192 */ 7193 static inline 7194 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) 7195 { 7196 struct pci_dev *pdev = instance->pdev; 7197 struct fusion_context *fusion = instance->ctrl_context; 7198 7199 instance->evt_detail = dma_alloc_coherent(&pdev->dev, 7200 sizeof(struct megasas_evt_detail), 7201 &instance->evt_detail_h, GFP_KERNEL); 7202 7203 if (!instance->evt_detail) { 7204 dev_err(&instance->pdev->dev, 7205 "Failed to allocate event detail buffer\n"); 7206 return -ENOMEM; 7207 } 7208 7209 if (fusion) { 7210 fusion->ioc_init_request = 7211 dma_alloc_coherent(&pdev->dev, 7212 sizeof(struct MPI2_IOC_INIT_REQUEST), 7213 &fusion->ioc_init_request_phys, 7214 GFP_KERNEL); 7215 7216 if (!fusion->ioc_init_request) { 7217 dev_err(&pdev->dev, 7218 "Failed to allocate ioc init request\n"); 7219 return -ENOMEM; 7220 } 7221 7222 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, 7223 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7224 &instance->snapdump_prop_h, GFP_KERNEL); 7225 7226 if (!instance->snapdump_prop) 7227 dev_err(&pdev->dev, 7228 "Failed to allocate snapdump properties buffer\n"); 7229 7230 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, 7231 HOST_DEVICE_LIST_SZ, 7232 &instance->host_device_list_buf_h, 7233 GFP_KERNEL); 7234 7235 if (!instance->host_device_list_buf) { 7236 dev_err(&pdev->dev, 7237 "Failed to allocate targetid list buffer\n"); 7238 return -ENOMEM; 7239 } 7240 7241 } 7242 7243 instance->pd_list_buf = 7244 dma_alloc_coherent(&pdev->dev, 7245 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7246 &instance->pd_list_buf_h, GFP_KERNEL); 7247 7248 if (!instance->pd_list_buf) { 7249 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); 7250 return -ENOMEM; 7251 } 7252 7253 instance->ctrl_info_buf = 7254 dma_alloc_coherent(&pdev->dev, 7255 sizeof(struct megasas_ctrl_info), 7256 &instance->ctrl_info_buf_h, GFP_KERNEL); 7257 7258 if (!instance->ctrl_info_buf) { 7259 dev_err(&pdev->dev, 7260 "Failed to allocate controller info buffer\n"); 7261 return -ENOMEM; 7262 } 7263 7264 instance->ld_list_buf = 7265 dma_alloc_coherent(&pdev->dev, 7266 sizeof(struct MR_LD_LIST), 7267 &instance->ld_list_buf_h, GFP_KERNEL); 7268 7269 if (!instance->ld_list_buf) { 7270 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); 7271 return -ENOMEM; 7272 } 7273 7274 instance->ld_targetid_list_buf = 7275 dma_alloc_coherent(&pdev->dev, 7276 sizeof(struct MR_LD_TARGETID_LIST), 7277 &instance->ld_targetid_list_buf_h, GFP_KERNEL); 7278 7279 if (!instance->ld_targetid_list_buf) { 7280 dev_err(&pdev->dev, 7281 "Failed to allocate LD targetid list buffer\n"); 7282 return -ENOMEM; 7283 } 7284 7285 if (!reset_devices) { 7286 instance->system_info_buf = 7287 dma_alloc_coherent(&pdev->dev, 7288 sizeof(struct MR_DRV_SYSTEM_INFO), 7289 &instance->system_info_h, GFP_KERNEL); 7290 instance->pd_info = 7291 dma_alloc_coherent(&pdev->dev, 7292 sizeof(struct MR_PD_INFO), 7293 &instance->pd_info_h, GFP_KERNEL); 7294 instance->tgt_prop = 7295 dma_alloc_coherent(&pdev->dev, 7296 sizeof(struct MR_TARGET_PROPERTIES), 7297 &instance->tgt_prop_h, GFP_KERNEL); 7298 instance->crash_dump_buf = 7299 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7300 &instance->crash_dump_h, GFP_KERNEL); 7301 7302 if (!instance->system_info_buf) 7303 dev_err(&instance->pdev->dev, 7304 "Failed to allocate system info buffer\n"); 7305 7306 if (!instance->pd_info) 7307 dev_err(&instance->pdev->dev, 7308 "Failed to allocate pd_info buffer\n"); 7309 7310 if (!instance->tgt_prop) 7311 dev_err(&instance->pdev->dev, 7312 "Failed to allocate tgt_prop buffer\n"); 7313 7314 if (!instance->crash_dump_buf) 7315 dev_err(&instance->pdev->dev, 7316 "Failed to allocate crash dump buffer\n"); 7317 } 7318 7319 return 0; 7320 } 7321 7322 /* 7323 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated 7324 * during driver load time 7325 * 7326 * @instance- Adapter soft instance 7327 * 7328 */ 7329 static inline 7330 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) 7331 { 7332 struct pci_dev *pdev = instance->pdev; 7333 struct fusion_context *fusion = instance->ctrl_context; 7334 7335 if (instance->evt_detail) 7336 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), 7337 instance->evt_detail, 7338 instance->evt_detail_h); 7339 7340 if (fusion && fusion->ioc_init_request) 7341 dma_free_coherent(&pdev->dev, 7342 sizeof(struct MPI2_IOC_INIT_REQUEST), 7343 fusion->ioc_init_request, 7344 fusion->ioc_init_request_phys); 7345 7346 if (instance->pd_list_buf) 7347 dma_free_coherent(&pdev->dev, 7348 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7349 instance->pd_list_buf, 7350 instance->pd_list_buf_h); 7351 7352 if (instance->ld_list_buf) 7353 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), 7354 instance->ld_list_buf, 7355 instance->ld_list_buf_h); 7356 7357 if (instance->ld_targetid_list_buf) 7358 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), 7359 instance->ld_targetid_list_buf, 7360 instance->ld_targetid_list_buf_h); 7361 7362 if (instance->ctrl_info_buf) 7363 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), 7364 instance->ctrl_info_buf, 7365 instance->ctrl_info_buf_h); 7366 7367 if (instance->system_info_buf) 7368 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), 7369 instance->system_info_buf, 7370 instance->system_info_h); 7371 7372 if (instance->pd_info) 7373 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), 7374 instance->pd_info, instance->pd_info_h); 7375 7376 if (instance->tgt_prop) 7377 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), 7378 instance->tgt_prop, instance->tgt_prop_h); 7379 7380 if (instance->crash_dump_buf) 7381 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7382 instance->crash_dump_buf, 7383 instance->crash_dump_h); 7384 7385 if (instance->snapdump_prop) 7386 dma_free_coherent(&pdev->dev, 7387 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7388 instance->snapdump_prop, 7389 instance->snapdump_prop_h); 7390 7391 if (instance->host_device_list_buf) 7392 dma_free_coherent(&pdev->dev, 7393 HOST_DEVICE_LIST_SZ, 7394 instance->host_device_list_buf, 7395 instance->host_device_list_buf_h); 7396 7397 } 7398 7399 /* 7400 * megasas_init_ctrl_params - Initialize controller's instance 7401 * parameters before FW init 7402 * @instance - Adapter soft instance 7403 * @return - void 7404 */ 7405 static inline void megasas_init_ctrl_params(struct megasas_instance *instance) 7406 { 7407 instance->fw_crash_state = UNAVAILABLE; 7408 7409 megasas_poll_wait_aen = 0; 7410 instance->issuepend_done = 1; 7411 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 7412 7413 /* 7414 * Initialize locks and queues 7415 */ 7416 INIT_LIST_HEAD(&instance->cmd_pool); 7417 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 7418 7419 atomic_set(&instance->fw_outstanding, 0); 7420 atomic64_set(&instance->total_io_count, 0); 7421 7422 init_waitqueue_head(&instance->int_cmd_wait_q); 7423 init_waitqueue_head(&instance->abort_cmd_wait_q); 7424 7425 spin_lock_init(&instance->crashdump_lock); 7426 spin_lock_init(&instance->mfi_pool_lock); 7427 spin_lock_init(&instance->hba_lock); 7428 spin_lock_init(&instance->stream_lock); 7429 spin_lock_init(&instance->completion_lock); 7430 7431 mutex_init(&instance->reset_mutex); 7432 7433 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 7434 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 7435 instance->flag_ieee = 1; 7436 7437 instance->flag = 0; 7438 instance->unload = 1; 7439 instance->last_time = 0; 7440 instance->disableOnlineCtrlReset = 1; 7441 instance->UnevenSpanSupport = 0; 7442 instance->smp_affinity_enable = smp_affinity_enable ? true : false; 7443 instance->msix_load_balance = false; 7444 7445 if (instance->adapter_type != MFI_SERIES) 7446 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 7447 else 7448 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 7449 } 7450 7451 /** 7452 * megasas_probe_one - PCI hotplug entry point 7453 * @pdev: PCI device structure 7454 * @id: PCI ids of supported hotplugged adapter 7455 */ 7456 static int megasas_probe_one(struct pci_dev *pdev, 7457 const struct pci_device_id *id) 7458 { 7459 int rval, pos; 7460 struct Scsi_Host *host; 7461 struct megasas_instance *instance; 7462 u16 control = 0; 7463 7464 switch (pdev->device) { 7465 case PCI_DEVICE_ID_LSI_AERO_10E0: 7466 case PCI_DEVICE_ID_LSI_AERO_10E3: 7467 case PCI_DEVICE_ID_LSI_AERO_10E4: 7468 case PCI_DEVICE_ID_LSI_AERO_10E7: 7469 dev_err(&pdev->dev, "Adapter is in non secure mode\n"); 7470 return 1; 7471 case PCI_DEVICE_ID_LSI_AERO_10E1: 7472 case PCI_DEVICE_ID_LSI_AERO_10E5: 7473 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); 7474 break; 7475 } 7476 7477 /* Reset MSI-X in the kdump kernel */ 7478 if (reset_devices) { 7479 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 7480 if (pos) { 7481 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 7482 &control); 7483 if (control & PCI_MSIX_FLAGS_ENABLE) { 7484 dev_info(&pdev->dev, "resetting MSI-X\n"); 7485 pci_write_config_word(pdev, 7486 pos + PCI_MSIX_FLAGS, 7487 control & 7488 ~PCI_MSIX_FLAGS_ENABLE); 7489 } 7490 } 7491 } 7492 7493 /* 7494 * PCI prepping: enable device set bus mastering and dma mask 7495 */ 7496 rval = pci_enable_device_mem(pdev); 7497 7498 if (rval) { 7499 return rval; 7500 } 7501 7502 pci_set_master(pdev); 7503 7504 host = scsi_host_alloc(&megasas_template, 7505 sizeof(struct megasas_instance)); 7506 7507 if (!host) { 7508 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 7509 goto fail_alloc_instance; 7510 } 7511 7512 instance = (struct megasas_instance *)host->hostdata; 7513 memset(instance, 0, sizeof(*instance)); 7514 atomic_set(&instance->fw_reset_no_pci_access, 0); 7515 7516 /* 7517 * Initialize PCI related and misc parameters 7518 */ 7519 instance->pdev = pdev; 7520 instance->host = host; 7521 instance->unique_id = pdev->bus->number << 8 | pdev->devfn; 7522 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 7523 7524 megasas_set_adapter_type(instance); 7525 7526 /* 7527 * Initialize MFI Firmware 7528 */ 7529 if (megasas_init_fw(instance)) 7530 goto fail_init_mfi; 7531 7532 if (instance->requestorId) { 7533 if (instance->PlasmaFW111) { 7534 instance->vf_affiliation_111 = 7535 dma_alloc_coherent(&pdev->dev, 7536 sizeof(struct MR_LD_VF_AFFILIATION_111), 7537 &instance->vf_affiliation_111_h, 7538 GFP_KERNEL); 7539 if (!instance->vf_affiliation_111) 7540 dev_warn(&pdev->dev, "Can't allocate " 7541 "memory for VF affiliation buffer\n"); 7542 } else { 7543 instance->vf_affiliation = 7544 dma_alloc_coherent(&pdev->dev, 7545 (MAX_LOGICAL_DRIVES + 1) * 7546 sizeof(struct MR_LD_VF_AFFILIATION), 7547 &instance->vf_affiliation_h, 7548 GFP_KERNEL); 7549 if (!instance->vf_affiliation) 7550 dev_warn(&pdev->dev, "Can't allocate " 7551 "memory for VF affiliation buffer\n"); 7552 } 7553 } 7554 7555 /* 7556 * Store instance in PCI softstate 7557 */ 7558 pci_set_drvdata(pdev, instance); 7559 7560 /* 7561 * Add this controller to megasas_mgmt_info structure so that it 7562 * can be exported to management applications 7563 */ 7564 megasas_mgmt_info.count++; 7565 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 7566 megasas_mgmt_info.max_index++; 7567 7568 /* 7569 * Register with SCSI mid-layer 7570 */ 7571 if (megasas_io_attach(instance)) 7572 goto fail_io_attach; 7573 7574 instance->unload = 0; 7575 /* 7576 * Trigger SCSI to scan our drives 7577 */ 7578 if (!instance->enable_fw_dev_list || 7579 (instance->host_device_list_buf->count > 0)) 7580 scsi_scan_host(host); 7581 7582 /* 7583 * Initiate AEN (Asynchronous Event Notification) 7584 */ 7585 if (megasas_start_aen(instance)) { 7586 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 7587 goto fail_start_aen; 7588 } 7589 7590 megasas_setup_debugfs(instance); 7591 7592 /* Get current SR-IOV LD/VF affiliation */ 7593 if (instance->requestorId) 7594 megasas_get_ld_vf_affiliation(instance, 1); 7595 7596 return 0; 7597 7598 fail_start_aen: 7599 instance->unload = 1; 7600 scsi_remove_host(instance->host); 7601 fail_io_attach: 7602 megasas_mgmt_info.count--; 7603 megasas_mgmt_info.max_index--; 7604 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 7605 7606 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7607 del_timer_sync(&instance->sriov_heartbeat_timer); 7608 7609 instance->instancet->disable_intr(instance); 7610 megasas_destroy_irqs(instance); 7611 7612 if (instance->adapter_type != MFI_SERIES) 7613 megasas_release_fusion(instance); 7614 else 7615 megasas_release_mfi(instance); 7616 7617 if (instance->msix_vectors) 7618 pci_free_irq_vectors(instance->pdev); 7619 instance->msix_vectors = 0; 7620 7621 if (instance->fw_crash_state != UNAVAILABLE) 7622 megasas_free_host_crash_buffer(instance); 7623 7624 if (instance->adapter_type != MFI_SERIES) 7625 megasas_fusion_stop_watchdog(instance); 7626 fail_init_mfi: 7627 scsi_host_put(host); 7628 fail_alloc_instance: 7629 pci_disable_device(pdev); 7630 7631 return -ENODEV; 7632 } 7633 7634 /** 7635 * megasas_flush_cache - Requests FW to flush all its caches 7636 * @instance: Adapter soft state 7637 */ 7638 static void megasas_flush_cache(struct megasas_instance *instance) 7639 { 7640 struct megasas_cmd *cmd; 7641 struct megasas_dcmd_frame *dcmd; 7642 7643 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7644 return; 7645 7646 cmd = megasas_get_cmd(instance); 7647 7648 if (!cmd) 7649 return; 7650 7651 dcmd = &cmd->frame->dcmd; 7652 7653 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7654 7655 dcmd->cmd = MFI_CMD_DCMD; 7656 dcmd->cmd_status = 0x0; 7657 dcmd->sge_count = 0; 7658 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7659 dcmd->timeout = 0; 7660 dcmd->pad_0 = 0; 7661 dcmd->data_xfer_len = 0; 7662 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 7663 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 7664 7665 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7666 != DCMD_SUCCESS) { 7667 dev_err(&instance->pdev->dev, 7668 "return from %s %d\n", __func__, __LINE__); 7669 return; 7670 } 7671 7672 megasas_return_cmd(instance, cmd); 7673 } 7674 7675 /** 7676 * megasas_shutdown_controller - Instructs FW to shutdown the controller 7677 * @instance: Adapter soft state 7678 * @opcode: Shutdown/Hibernate 7679 */ 7680 static void megasas_shutdown_controller(struct megasas_instance *instance, 7681 u32 opcode) 7682 { 7683 struct megasas_cmd *cmd; 7684 struct megasas_dcmd_frame *dcmd; 7685 7686 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7687 return; 7688 7689 cmd = megasas_get_cmd(instance); 7690 7691 if (!cmd) 7692 return; 7693 7694 if (instance->aen_cmd) 7695 megasas_issue_blocked_abort_cmd(instance, 7696 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 7697 if (instance->map_update_cmd) 7698 megasas_issue_blocked_abort_cmd(instance, 7699 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 7700 if (instance->jbod_seq_cmd) 7701 megasas_issue_blocked_abort_cmd(instance, 7702 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 7703 7704 dcmd = &cmd->frame->dcmd; 7705 7706 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7707 7708 dcmd->cmd = MFI_CMD_DCMD; 7709 dcmd->cmd_status = 0x0; 7710 dcmd->sge_count = 0; 7711 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7712 dcmd->timeout = 0; 7713 dcmd->pad_0 = 0; 7714 dcmd->data_xfer_len = 0; 7715 dcmd->opcode = cpu_to_le32(opcode); 7716 7717 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7718 != DCMD_SUCCESS) { 7719 dev_err(&instance->pdev->dev, 7720 "return from %s %d\n", __func__, __LINE__); 7721 return; 7722 } 7723 7724 megasas_return_cmd(instance, cmd); 7725 } 7726 7727 /** 7728 * megasas_suspend - driver suspend entry point 7729 * @dev: Device structure 7730 */ 7731 static int __maybe_unused 7732 megasas_suspend(struct device *dev) 7733 { 7734 struct megasas_instance *instance; 7735 7736 instance = dev_get_drvdata(dev); 7737 7738 if (!instance) 7739 return 0; 7740 7741 instance->unload = 1; 7742 7743 dev_info(dev, "%s is called\n", __func__); 7744 7745 /* Shutdown SR-IOV heartbeat timer */ 7746 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7747 del_timer_sync(&instance->sriov_heartbeat_timer); 7748 7749 /* Stop the FW fault detection watchdog */ 7750 if (instance->adapter_type != MFI_SERIES) 7751 megasas_fusion_stop_watchdog(instance); 7752 7753 megasas_flush_cache(instance); 7754 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 7755 7756 /* cancel the delayed work if this work still in queue */ 7757 if (instance->ev != NULL) { 7758 struct megasas_aen_event *ev = instance->ev; 7759 cancel_delayed_work_sync(&ev->hotplug_work); 7760 instance->ev = NULL; 7761 } 7762 7763 tasklet_kill(&instance->isr_tasklet); 7764 7765 pci_set_drvdata(instance->pdev, instance); 7766 instance->instancet->disable_intr(instance); 7767 7768 megasas_destroy_irqs(instance); 7769 7770 if (instance->msix_vectors) 7771 pci_free_irq_vectors(instance->pdev); 7772 7773 return 0; 7774 } 7775 7776 /** 7777 * megasas_resume- driver resume entry point 7778 * @dev: Device structure 7779 */ 7780 static int __maybe_unused 7781 megasas_resume(struct device *dev) 7782 { 7783 int rval; 7784 struct Scsi_Host *host; 7785 struct megasas_instance *instance; 7786 u32 status_reg; 7787 7788 instance = dev_get_drvdata(dev); 7789 7790 if (!instance) 7791 return 0; 7792 7793 host = instance->host; 7794 7795 dev_info(dev, "%s is called\n", __func__); 7796 7797 /* 7798 * We expect the FW state to be READY 7799 */ 7800 7801 if (megasas_transition_to_ready(instance, 0)) { 7802 dev_info(&instance->pdev->dev, 7803 "Failed to transition controller to ready from %s!\n", 7804 __func__); 7805 if (instance->adapter_type != MFI_SERIES) { 7806 status_reg = 7807 instance->instancet->read_fw_status_reg(instance); 7808 if (!(status_reg & MFI_RESET_ADAPTER) || 7809 ((megasas_adp_reset_wait_for_ready 7810 (instance, true, 0)) == FAILED)) 7811 goto fail_ready_state; 7812 } else { 7813 atomic_set(&instance->fw_reset_no_pci_access, 1); 7814 instance->instancet->adp_reset 7815 (instance, instance->reg_set); 7816 atomic_set(&instance->fw_reset_no_pci_access, 0); 7817 7818 /* waiting for about 30 seconds before retry */ 7819 ssleep(30); 7820 7821 if (megasas_transition_to_ready(instance, 0)) 7822 goto fail_ready_state; 7823 } 7824 7825 dev_info(&instance->pdev->dev, 7826 "FW restarted successfully from %s!\n", 7827 __func__); 7828 } 7829 if (megasas_set_dma_mask(instance)) 7830 goto fail_set_dma_mask; 7831 7832 /* 7833 * Initialize MFI Firmware 7834 */ 7835 7836 atomic_set(&instance->fw_outstanding, 0); 7837 atomic_set(&instance->ldio_outstanding, 0); 7838 7839 /* Now re-enable MSI-X */ 7840 if (instance->msix_vectors) 7841 megasas_alloc_irq_vectors(instance); 7842 7843 if (!instance->msix_vectors) { 7844 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, 7845 PCI_IRQ_LEGACY); 7846 if (rval < 0) 7847 goto fail_reenable_msix; 7848 } 7849 7850 megasas_setup_reply_map(instance); 7851 7852 if (instance->adapter_type != MFI_SERIES) { 7853 megasas_reset_reply_desc(instance); 7854 if (megasas_ioc_init_fusion(instance)) { 7855 megasas_free_cmds(instance); 7856 megasas_free_cmds_fusion(instance); 7857 goto fail_init_mfi; 7858 } 7859 if (!megasas_get_map_info(instance)) 7860 megasas_sync_map_info(instance); 7861 } else { 7862 *instance->producer = 0; 7863 *instance->consumer = 0; 7864 if (megasas_issue_init_mfi(instance)) 7865 goto fail_init_mfi; 7866 } 7867 7868 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) 7869 goto fail_init_mfi; 7870 7871 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 7872 (unsigned long)instance); 7873 7874 if (instance->msix_vectors ? 7875 megasas_setup_irqs_msix(instance, 0) : 7876 megasas_setup_irqs_ioapic(instance)) 7877 goto fail_init_mfi; 7878 7879 if (instance->adapter_type != MFI_SERIES) 7880 megasas_setup_irq_poll(instance); 7881 7882 /* Re-launch SR-IOV heartbeat timer */ 7883 if (instance->requestorId) { 7884 if (!megasas_sriov_start_heartbeat(instance, 0)) 7885 megasas_start_timer(instance); 7886 else { 7887 instance->skip_heartbeat_timer_del = 1; 7888 goto fail_init_mfi; 7889 } 7890 } 7891 7892 instance->instancet->enable_intr(instance); 7893 megasas_setup_jbod_map(instance); 7894 instance->unload = 0; 7895 7896 /* 7897 * Initiate AEN (Asynchronous Event Notification) 7898 */ 7899 if (megasas_start_aen(instance)) 7900 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 7901 7902 /* Re-launch FW fault watchdog */ 7903 if (instance->adapter_type != MFI_SERIES) 7904 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 7905 goto fail_start_watchdog; 7906 7907 return 0; 7908 7909 fail_start_watchdog: 7910 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7911 del_timer_sync(&instance->sriov_heartbeat_timer); 7912 fail_init_mfi: 7913 megasas_free_ctrl_dma_buffers(instance); 7914 megasas_free_ctrl_mem(instance); 7915 scsi_host_put(host); 7916 7917 fail_reenable_msix: 7918 fail_set_dma_mask: 7919 fail_ready_state: 7920 7921 return -ENODEV; 7922 } 7923 7924 static inline int 7925 megasas_wait_for_adapter_operational(struct megasas_instance *instance) 7926 { 7927 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 7928 int i; 7929 u8 adp_state; 7930 7931 for (i = 0; i < wait_time; i++) { 7932 adp_state = atomic_read(&instance->adprecovery); 7933 if ((adp_state == MEGASAS_HBA_OPERATIONAL) || 7934 (adp_state == MEGASAS_HW_CRITICAL_ERROR)) 7935 break; 7936 7937 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 7938 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 7939 7940 msleep(1000); 7941 } 7942 7943 if (adp_state != MEGASAS_HBA_OPERATIONAL) { 7944 dev_info(&instance->pdev->dev, 7945 "%s HBA failed to become operational, adp_state %d\n", 7946 __func__, adp_state); 7947 return 1; 7948 } 7949 7950 return 0; 7951 } 7952 7953 /** 7954 * megasas_detach_one - PCI hot"un"plug entry point 7955 * @pdev: PCI device structure 7956 */ 7957 static void megasas_detach_one(struct pci_dev *pdev) 7958 { 7959 int i; 7960 struct Scsi_Host *host; 7961 struct megasas_instance *instance; 7962 struct fusion_context *fusion; 7963 size_t pd_seq_map_sz; 7964 7965 instance = pci_get_drvdata(pdev); 7966 7967 if (!instance) 7968 return; 7969 7970 host = instance->host; 7971 fusion = instance->ctrl_context; 7972 7973 /* Shutdown SR-IOV heartbeat timer */ 7974 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7975 del_timer_sync(&instance->sriov_heartbeat_timer); 7976 7977 /* Stop the FW fault detection watchdog */ 7978 if (instance->adapter_type != MFI_SERIES) 7979 megasas_fusion_stop_watchdog(instance); 7980 7981 if (instance->fw_crash_state != UNAVAILABLE) 7982 megasas_free_host_crash_buffer(instance); 7983 scsi_remove_host(instance->host); 7984 instance->unload = 1; 7985 7986 if (megasas_wait_for_adapter_operational(instance)) 7987 goto skip_firing_dcmds; 7988 7989 megasas_flush_cache(instance); 7990 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7991 7992 skip_firing_dcmds: 7993 /* cancel the delayed work if this work still in queue*/ 7994 if (instance->ev != NULL) { 7995 struct megasas_aen_event *ev = instance->ev; 7996 cancel_delayed_work_sync(&ev->hotplug_work); 7997 instance->ev = NULL; 7998 } 7999 8000 /* cancel all wait events */ 8001 wake_up_all(&instance->int_cmd_wait_q); 8002 8003 tasklet_kill(&instance->isr_tasklet); 8004 8005 /* 8006 * Take the instance off the instance array. Note that we will not 8007 * decrement the max_index. We let this array be sparse array 8008 */ 8009 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8010 if (megasas_mgmt_info.instance[i] == instance) { 8011 megasas_mgmt_info.count--; 8012 megasas_mgmt_info.instance[i] = NULL; 8013 8014 break; 8015 } 8016 } 8017 8018 instance->instancet->disable_intr(instance); 8019 8020 megasas_destroy_irqs(instance); 8021 8022 if (instance->msix_vectors) 8023 pci_free_irq_vectors(instance->pdev); 8024 8025 if (instance->adapter_type >= VENTURA_SERIES) { 8026 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 8027 kfree(fusion->stream_detect_by_ld[i]); 8028 kfree(fusion->stream_detect_by_ld); 8029 fusion->stream_detect_by_ld = NULL; 8030 } 8031 8032 8033 if (instance->adapter_type != MFI_SERIES) { 8034 megasas_release_fusion(instance); 8035 pd_seq_map_sz = 8036 struct_size((struct MR_PD_CFG_SEQ_NUM_SYNC *)0, 8037 seq, MAX_PHYSICAL_DEVICES); 8038 for (i = 0; i < 2 ; i++) { 8039 if (fusion->ld_map[i]) 8040 dma_free_coherent(&instance->pdev->dev, 8041 fusion->max_map_sz, 8042 fusion->ld_map[i], 8043 fusion->ld_map_phys[i]); 8044 if (fusion->ld_drv_map[i]) { 8045 if (is_vmalloc_addr(fusion->ld_drv_map[i])) 8046 vfree(fusion->ld_drv_map[i]); 8047 else 8048 free_pages((ulong)fusion->ld_drv_map[i], 8049 fusion->drv_map_pages); 8050 } 8051 8052 if (fusion->pd_seq_sync[i]) 8053 dma_free_coherent(&instance->pdev->dev, 8054 pd_seq_map_sz, 8055 fusion->pd_seq_sync[i], 8056 fusion->pd_seq_phys[i]); 8057 } 8058 } else { 8059 megasas_release_mfi(instance); 8060 } 8061 8062 if (instance->vf_affiliation) 8063 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * 8064 sizeof(struct MR_LD_VF_AFFILIATION), 8065 instance->vf_affiliation, 8066 instance->vf_affiliation_h); 8067 8068 if (instance->vf_affiliation_111) 8069 dma_free_coherent(&pdev->dev, 8070 sizeof(struct MR_LD_VF_AFFILIATION_111), 8071 instance->vf_affiliation_111, 8072 instance->vf_affiliation_111_h); 8073 8074 if (instance->hb_host_mem) 8075 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), 8076 instance->hb_host_mem, 8077 instance->hb_host_mem_h); 8078 8079 megasas_free_ctrl_dma_buffers(instance); 8080 8081 megasas_free_ctrl_mem(instance); 8082 8083 megasas_destroy_debugfs(instance); 8084 8085 scsi_host_put(host); 8086 8087 pci_disable_device(pdev); 8088 } 8089 8090 /** 8091 * megasas_shutdown - Shutdown entry point 8092 * @pdev: PCI device structure 8093 */ 8094 static void megasas_shutdown(struct pci_dev *pdev) 8095 { 8096 struct megasas_instance *instance = pci_get_drvdata(pdev); 8097 8098 if (!instance) 8099 return; 8100 8101 instance->unload = 1; 8102 8103 if (megasas_wait_for_adapter_operational(instance)) 8104 goto skip_firing_dcmds; 8105 8106 megasas_flush_cache(instance); 8107 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 8108 8109 skip_firing_dcmds: 8110 instance->instancet->disable_intr(instance); 8111 megasas_destroy_irqs(instance); 8112 8113 if (instance->msix_vectors) 8114 pci_free_irq_vectors(instance->pdev); 8115 } 8116 8117 /* 8118 * megasas_mgmt_open - char node "open" entry point 8119 * @inode: char node inode 8120 * @filep: char node file 8121 */ 8122 static int megasas_mgmt_open(struct inode *inode, struct file *filep) 8123 { 8124 /* 8125 * Allow only those users with admin rights 8126 */ 8127 if (!capable(CAP_SYS_ADMIN)) 8128 return -EACCES; 8129 8130 return 0; 8131 } 8132 8133 /* 8134 * megasas_mgmt_fasync - Async notifier registration from applications 8135 * @fd: char node file descriptor number 8136 * @filep: char node file 8137 * @mode: notifier on/off 8138 * 8139 * This function adds the calling process to a driver global queue. When an 8140 * event occurs, SIGIO will be sent to all processes in this queue. 8141 */ 8142 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 8143 { 8144 int rc; 8145 8146 mutex_lock(&megasas_async_queue_mutex); 8147 8148 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 8149 8150 mutex_unlock(&megasas_async_queue_mutex); 8151 8152 if (rc >= 0) { 8153 /* For sanity check when we get ioctl */ 8154 filep->private_data = filep; 8155 return 0; 8156 } 8157 8158 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 8159 8160 return rc; 8161 } 8162 8163 /* 8164 * megasas_mgmt_poll - char node "poll" entry point 8165 * @filep: char node file 8166 * @wait: Events to poll for 8167 */ 8168 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) 8169 { 8170 __poll_t mask; 8171 unsigned long flags; 8172 8173 poll_wait(file, &megasas_poll_wait, wait); 8174 spin_lock_irqsave(&poll_aen_lock, flags); 8175 if (megasas_poll_wait_aen) 8176 mask = (EPOLLIN | EPOLLRDNORM); 8177 else 8178 mask = 0; 8179 megasas_poll_wait_aen = 0; 8180 spin_unlock_irqrestore(&poll_aen_lock, flags); 8181 return mask; 8182 } 8183 8184 /* 8185 * megasas_set_crash_dump_params_ioctl: 8186 * Send CRASH_DUMP_MODE DCMD to all controllers 8187 * @cmd: MFI command frame 8188 */ 8189 8190 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 8191 { 8192 struct megasas_instance *local_instance; 8193 int i, error = 0; 8194 int crash_support; 8195 8196 crash_support = cmd->frame->dcmd.mbox.w[0]; 8197 8198 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8199 local_instance = megasas_mgmt_info.instance[i]; 8200 if (local_instance && local_instance->crash_dump_drv_support) { 8201 if ((atomic_read(&local_instance->adprecovery) == 8202 MEGASAS_HBA_OPERATIONAL) && 8203 !megasas_set_crash_dump_params(local_instance, 8204 crash_support)) { 8205 local_instance->crash_dump_app_support = 8206 crash_support; 8207 dev_info(&local_instance->pdev->dev, 8208 "Application firmware crash " 8209 "dump mode set success\n"); 8210 error = 0; 8211 } else { 8212 dev_info(&local_instance->pdev->dev, 8213 "Application firmware crash " 8214 "dump mode set failed\n"); 8215 error = -1; 8216 } 8217 } 8218 } 8219 return error; 8220 } 8221 8222 /** 8223 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 8224 * @instance: Adapter soft state 8225 * @user_ioc: User's ioctl packet 8226 * @ioc: ioctl packet 8227 */ 8228 static int 8229 megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 8230 struct megasas_iocpacket __user * user_ioc, 8231 struct megasas_iocpacket *ioc) 8232 { 8233 struct megasas_sge64 *kern_sge64 = NULL; 8234 struct megasas_sge32 *kern_sge32 = NULL; 8235 struct megasas_cmd *cmd; 8236 void *kbuff_arr[MAX_IOCTL_SGE]; 8237 dma_addr_t buf_handle = 0; 8238 int error = 0, i; 8239 void *sense = NULL; 8240 dma_addr_t sense_handle; 8241 void *sense_ptr; 8242 u32 opcode = 0; 8243 int ret = DCMD_SUCCESS; 8244 8245 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 8246 8247 if (ioc->sge_count > MAX_IOCTL_SGE) { 8248 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 8249 ioc->sge_count, MAX_IOCTL_SGE); 8250 return -EINVAL; 8251 } 8252 8253 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || 8254 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && 8255 !instance->support_nvme_passthru) || 8256 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && 8257 !instance->support_pci_lane_margining)) { 8258 dev_err(&instance->pdev->dev, 8259 "Received invalid ioctl command 0x%x\n", 8260 ioc->frame.hdr.cmd); 8261 return -ENOTSUPP; 8262 } 8263 8264 cmd = megasas_get_cmd(instance); 8265 if (!cmd) { 8266 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 8267 return -ENOMEM; 8268 } 8269 8270 /* 8271 * User's IOCTL packet has 2 frames (maximum). Copy those two 8272 * frames into our cmd's frames. cmd->frame's context will get 8273 * overwritten when we copy from user's frames. So set that value 8274 * alone separately 8275 */ 8276 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 8277 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 8278 cmd->frame->hdr.pad_0 = 0; 8279 8280 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); 8281 8282 if (instance->consistent_mask_64bit) 8283 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | 8284 MFI_FRAME_SENSE64)); 8285 else 8286 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | 8287 MFI_FRAME_SENSE64)); 8288 8289 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) 8290 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 8291 8292 if (opcode == MR_DCMD_CTRL_SHUTDOWN) { 8293 mutex_lock(&instance->reset_mutex); 8294 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 8295 megasas_return_cmd(instance, cmd); 8296 mutex_unlock(&instance->reset_mutex); 8297 return -1; 8298 } 8299 mutex_unlock(&instance->reset_mutex); 8300 } 8301 8302 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 8303 error = megasas_set_crash_dump_params_ioctl(cmd); 8304 megasas_return_cmd(instance, cmd); 8305 return error; 8306 } 8307 8308 /* 8309 * The management interface between applications and the fw uses 8310 * MFI frames. E.g, RAID configuration changes, LD property changes 8311 * etc are accomplishes through different kinds of MFI frames. The 8312 * driver needs to care only about substituting user buffers with 8313 * kernel buffers in SGLs. The location of SGL is embedded in the 8314 * struct iocpacket itself. 8315 */ 8316 if (instance->consistent_mask_64bit) 8317 kern_sge64 = (struct megasas_sge64 *) 8318 ((unsigned long)cmd->frame + ioc->sgl_off); 8319 else 8320 kern_sge32 = (struct megasas_sge32 *) 8321 ((unsigned long)cmd->frame + ioc->sgl_off); 8322 8323 /* 8324 * For each user buffer, create a mirror buffer and copy in 8325 */ 8326 for (i = 0; i < ioc->sge_count; i++) { 8327 if (!ioc->sgl[i].iov_len) 8328 continue; 8329 8330 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 8331 ioc->sgl[i].iov_len, 8332 &buf_handle, GFP_KERNEL); 8333 if (!kbuff_arr[i]) { 8334 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 8335 "kernel SGL buffer for IOCTL\n"); 8336 error = -ENOMEM; 8337 goto out; 8338 } 8339 8340 /* 8341 * We don't change the dma_coherent_mask, so 8342 * dma_alloc_coherent only returns 32bit addresses 8343 */ 8344 if (instance->consistent_mask_64bit) { 8345 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); 8346 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8347 } else { 8348 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 8349 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8350 } 8351 8352 /* 8353 * We created a kernel buffer corresponding to the 8354 * user buffer. Now copy in from the user buffer 8355 */ 8356 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 8357 (u32) (ioc->sgl[i].iov_len))) { 8358 error = -EFAULT; 8359 goto out; 8360 } 8361 } 8362 8363 if (ioc->sense_len) { 8364 /* make sure the pointer is part of the frame */ 8365 if (ioc->sense_off > 8366 (sizeof(union megasas_frame) - sizeof(__le64))) { 8367 error = -EINVAL; 8368 goto out; 8369 } 8370 8371 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 8372 &sense_handle, GFP_KERNEL); 8373 if (!sense) { 8374 error = -ENOMEM; 8375 goto out; 8376 } 8377 8378 /* always store 64 bits regardless of addressing */ 8379 sense_ptr = (void *)cmd->frame + ioc->sense_off; 8380 put_unaligned_le64(sense_handle, sense_ptr); 8381 } 8382 8383 /* 8384 * Set the sync_cmd flag so that the ISR knows not to complete this 8385 * cmd to the SCSI mid-layer 8386 */ 8387 cmd->sync_cmd = 1; 8388 8389 ret = megasas_issue_blocked_cmd(instance, cmd, 0); 8390 switch (ret) { 8391 case DCMD_INIT: 8392 case DCMD_BUSY: 8393 cmd->sync_cmd = 0; 8394 dev_err(&instance->pdev->dev, 8395 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", 8396 __func__, __LINE__, cmd->frame->hdr.cmd, opcode, 8397 cmd->cmd_status_drv); 8398 error = -EBUSY; 8399 goto out; 8400 } 8401 8402 cmd->sync_cmd = 0; 8403 8404 if (instance->unload == 1) { 8405 dev_info(&instance->pdev->dev, "Driver unload is in progress " 8406 "don't submit data to application\n"); 8407 goto out; 8408 } 8409 /* 8410 * copy out the kernel buffers to user buffers 8411 */ 8412 for (i = 0; i < ioc->sge_count; i++) { 8413 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 8414 ioc->sgl[i].iov_len)) { 8415 error = -EFAULT; 8416 goto out; 8417 } 8418 } 8419 8420 /* 8421 * copy out the sense 8422 */ 8423 if (ioc->sense_len) { 8424 void __user *uptr; 8425 /* 8426 * sense_ptr points to the location that has the user 8427 * sense buffer address 8428 */ 8429 sense_ptr = (void *)ioc->frame.raw + ioc->sense_off; 8430 if (in_compat_syscall()) 8431 uptr = compat_ptr(get_unaligned((compat_uptr_t *) 8432 sense_ptr)); 8433 else 8434 uptr = get_unaligned((void __user **)sense_ptr); 8435 8436 if (copy_to_user(uptr, sense, ioc->sense_len)) { 8437 dev_err(&instance->pdev->dev, "Failed to copy out to user " 8438 "sense data\n"); 8439 error = -EFAULT; 8440 goto out; 8441 } 8442 } 8443 8444 /* 8445 * copy the status codes returned by the fw 8446 */ 8447 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 8448 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 8449 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 8450 error = -EFAULT; 8451 } 8452 8453 out: 8454 if (sense) { 8455 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 8456 sense, sense_handle); 8457 } 8458 8459 for (i = 0; i < ioc->sge_count; i++) { 8460 if (kbuff_arr[i]) { 8461 if (instance->consistent_mask_64bit) 8462 dma_free_coherent(&instance->pdev->dev, 8463 le32_to_cpu(kern_sge64[i].length), 8464 kbuff_arr[i], 8465 le64_to_cpu(kern_sge64[i].phys_addr)); 8466 else 8467 dma_free_coherent(&instance->pdev->dev, 8468 le32_to_cpu(kern_sge32[i].length), 8469 kbuff_arr[i], 8470 le32_to_cpu(kern_sge32[i].phys_addr)); 8471 kbuff_arr[i] = NULL; 8472 } 8473 } 8474 8475 megasas_return_cmd(instance, cmd); 8476 return error; 8477 } 8478 8479 static struct megasas_iocpacket * 8480 megasas_compat_iocpacket_get_user(void __user *arg) 8481 { 8482 struct megasas_iocpacket *ioc; 8483 struct compat_megasas_iocpacket __user *cioc = arg; 8484 size_t size; 8485 int err = -EFAULT; 8486 int i; 8487 8488 ioc = kzalloc(sizeof(*ioc), GFP_KERNEL); 8489 if (!ioc) 8490 return ERR_PTR(-ENOMEM); 8491 size = offsetof(struct megasas_iocpacket, frame) + sizeof(ioc->frame); 8492 if (copy_from_user(ioc, arg, size)) 8493 goto out; 8494 8495 for (i = 0; i < MAX_IOCTL_SGE; i++) { 8496 compat_uptr_t iov_base; 8497 8498 if (get_user(iov_base, &cioc->sgl[i].iov_base) || 8499 get_user(ioc->sgl[i].iov_len, &cioc->sgl[i].iov_len)) 8500 goto out; 8501 8502 ioc->sgl[i].iov_base = compat_ptr(iov_base); 8503 } 8504 8505 return ioc; 8506 out: 8507 kfree(ioc); 8508 return ERR_PTR(err); 8509 } 8510 8511 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 8512 { 8513 struct megasas_iocpacket __user *user_ioc = 8514 (struct megasas_iocpacket __user *)arg; 8515 struct megasas_iocpacket *ioc; 8516 struct megasas_instance *instance; 8517 int error; 8518 8519 if (in_compat_syscall()) 8520 ioc = megasas_compat_iocpacket_get_user(user_ioc); 8521 else 8522 ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket)); 8523 8524 if (IS_ERR(ioc)) 8525 return PTR_ERR(ioc); 8526 8527 instance = megasas_lookup_instance(ioc->host_no); 8528 if (!instance) { 8529 error = -ENODEV; 8530 goto out_kfree_ioc; 8531 } 8532 8533 /* Block ioctls in VF mode */ 8534 if (instance->requestorId && !allow_vf_ioctls) { 8535 error = -ENODEV; 8536 goto out_kfree_ioc; 8537 } 8538 8539 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8540 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 8541 error = -ENODEV; 8542 goto out_kfree_ioc; 8543 } 8544 8545 if (instance->unload == 1) { 8546 error = -ENODEV; 8547 goto out_kfree_ioc; 8548 } 8549 8550 if (down_interruptible(&instance->ioctl_sem)) { 8551 error = -ERESTARTSYS; 8552 goto out_kfree_ioc; 8553 } 8554 8555 if (megasas_wait_for_adapter_operational(instance)) { 8556 error = -ENODEV; 8557 goto out_up; 8558 } 8559 8560 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 8561 out_up: 8562 up(&instance->ioctl_sem); 8563 8564 out_kfree_ioc: 8565 kfree(ioc); 8566 return error; 8567 } 8568 8569 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 8570 { 8571 struct megasas_instance *instance; 8572 struct megasas_aen aen; 8573 int error; 8574 8575 if (file->private_data != file) { 8576 printk(KERN_DEBUG "megasas: fasync_helper was not " 8577 "called first\n"); 8578 return -EINVAL; 8579 } 8580 8581 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 8582 return -EFAULT; 8583 8584 instance = megasas_lookup_instance(aen.host_no); 8585 8586 if (!instance) 8587 return -ENODEV; 8588 8589 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8590 return -ENODEV; 8591 } 8592 8593 if (instance->unload == 1) { 8594 return -ENODEV; 8595 } 8596 8597 if (megasas_wait_for_adapter_operational(instance)) 8598 return -ENODEV; 8599 8600 mutex_lock(&instance->reset_mutex); 8601 error = megasas_register_aen(instance, aen.seq_num, 8602 aen.class_locale_word); 8603 mutex_unlock(&instance->reset_mutex); 8604 return error; 8605 } 8606 8607 /** 8608 * megasas_mgmt_ioctl - char node ioctl entry point 8609 * @file: char device file pointer 8610 * @cmd: ioctl command 8611 * @arg: ioctl command arguments address 8612 */ 8613 static long 8614 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 8615 { 8616 switch (cmd) { 8617 case MEGASAS_IOC_FIRMWARE: 8618 return megasas_mgmt_ioctl_fw(file, arg); 8619 8620 case MEGASAS_IOC_GET_AEN: 8621 return megasas_mgmt_ioctl_aen(file, arg); 8622 } 8623 8624 return -ENOTTY; 8625 } 8626 8627 #ifdef CONFIG_COMPAT 8628 static long 8629 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 8630 unsigned long arg) 8631 { 8632 switch (cmd) { 8633 case MEGASAS_IOC_FIRMWARE32: 8634 return megasas_mgmt_ioctl_fw(file, arg); 8635 case MEGASAS_IOC_GET_AEN: 8636 return megasas_mgmt_ioctl_aen(file, arg); 8637 } 8638 8639 return -ENOTTY; 8640 } 8641 #endif 8642 8643 /* 8644 * File operations structure for management interface 8645 */ 8646 static const struct file_operations megasas_mgmt_fops = { 8647 .owner = THIS_MODULE, 8648 .open = megasas_mgmt_open, 8649 .fasync = megasas_mgmt_fasync, 8650 .unlocked_ioctl = megasas_mgmt_ioctl, 8651 .poll = megasas_mgmt_poll, 8652 #ifdef CONFIG_COMPAT 8653 .compat_ioctl = megasas_mgmt_compat_ioctl, 8654 #endif 8655 .llseek = noop_llseek, 8656 }; 8657 8658 static SIMPLE_DEV_PM_OPS(megasas_pm_ops, megasas_suspend, megasas_resume); 8659 8660 /* 8661 * PCI hotplug support registration structure 8662 */ 8663 static struct pci_driver megasas_pci_driver = { 8664 8665 .name = "megaraid_sas", 8666 .id_table = megasas_pci_table, 8667 .probe = megasas_probe_one, 8668 .remove = megasas_detach_one, 8669 .driver.pm = &megasas_pm_ops, 8670 .shutdown = megasas_shutdown, 8671 }; 8672 8673 /* 8674 * Sysfs driver attributes 8675 */ 8676 static ssize_t version_show(struct device_driver *dd, char *buf) 8677 { 8678 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 8679 MEGASAS_VERSION); 8680 } 8681 static DRIVER_ATTR_RO(version); 8682 8683 static ssize_t release_date_show(struct device_driver *dd, char *buf) 8684 { 8685 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 8686 MEGASAS_RELDATE); 8687 } 8688 static DRIVER_ATTR_RO(release_date); 8689 8690 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) 8691 { 8692 return sprintf(buf, "%u\n", support_poll_for_event); 8693 } 8694 static DRIVER_ATTR_RO(support_poll_for_event); 8695 8696 static ssize_t support_device_change_show(struct device_driver *dd, char *buf) 8697 { 8698 return sprintf(buf, "%u\n", support_device_change); 8699 } 8700 static DRIVER_ATTR_RO(support_device_change); 8701 8702 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) 8703 { 8704 return sprintf(buf, "%u\n", megasas_dbg_lvl); 8705 } 8706 8707 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, 8708 size_t count) 8709 { 8710 int retval = count; 8711 8712 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 8713 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 8714 retval = -EINVAL; 8715 } 8716 return retval; 8717 } 8718 static DRIVER_ATTR_RW(dbg_lvl); 8719 8720 static ssize_t 8721 support_nvme_encapsulation_show(struct device_driver *dd, char *buf) 8722 { 8723 return sprintf(buf, "%u\n", support_nvme_encapsulation); 8724 } 8725 8726 static DRIVER_ATTR_RO(support_nvme_encapsulation); 8727 8728 static ssize_t 8729 support_pci_lane_margining_show(struct device_driver *dd, char *buf) 8730 { 8731 return sprintf(buf, "%u\n", support_pci_lane_margining); 8732 } 8733 8734 static DRIVER_ATTR_RO(support_pci_lane_margining); 8735 8736 static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 8737 { 8738 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 8739 scsi_remove_device(sdev); 8740 scsi_device_put(sdev); 8741 } 8742 8743 /** 8744 * megasas_update_device_list - Update the PD and LD device list from FW 8745 * after an AEN event notification 8746 * @instance: Adapter soft state 8747 * @event_type: Indicates type of event (PD or LD event) 8748 * 8749 * @return: Success or failure 8750 * 8751 * Issue DCMDs to Firmware to update the internal device list in driver. 8752 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 8753 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 8754 */ 8755 static 8756 int megasas_update_device_list(struct megasas_instance *instance, 8757 int event_type) 8758 { 8759 int dcmd_ret; 8760 8761 if (instance->enable_fw_dev_list) { 8762 return megasas_host_device_list_query(instance, false); 8763 } else { 8764 if (event_type & SCAN_PD_CHANNEL) { 8765 dcmd_ret = megasas_get_pd_list(instance); 8766 if (dcmd_ret != DCMD_SUCCESS) 8767 return dcmd_ret; 8768 } 8769 8770 if (event_type & SCAN_VD_CHANNEL) { 8771 if (!instance->requestorId || 8772 megasas_get_ld_vf_affiliation(instance, 0)) { 8773 return megasas_ld_list_query(instance, 8774 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 8775 } 8776 } 8777 } 8778 return DCMD_SUCCESS; 8779 } 8780 8781 /** 8782 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer 8783 * after an AEN event notification 8784 * @instance: Adapter soft state 8785 * @scan_type: Indicates type of devices (PD/LD) to add 8786 * @return void 8787 */ 8788 static 8789 void megasas_add_remove_devices(struct megasas_instance *instance, 8790 int scan_type) 8791 { 8792 int i, j; 8793 u16 pd_index = 0; 8794 u16 ld_index = 0; 8795 u16 channel = 0, id = 0; 8796 struct Scsi_Host *host; 8797 struct scsi_device *sdev1; 8798 struct MR_HOST_DEVICE_LIST *targetid_list = NULL; 8799 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; 8800 8801 host = instance->host; 8802 8803 if (instance->enable_fw_dev_list) { 8804 targetid_list = instance->host_device_list_buf; 8805 for (i = 0; i < targetid_list->count; i++) { 8806 targetid_entry = &targetid_list->host_device_list[i]; 8807 if (targetid_entry->flags.u.bits.is_sys_pd) { 8808 channel = le16_to_cpu(targetid_entry->target_id) / 8809 MEGASAS_MAX_DEV_PER_CHANNEL; 8810 id = le16_to_cpu(targetid_entry->target_id) % 8811 MEGASAS_MAX_DEV_PER_CHANNEL; 8812 } else { 8813 channel = MEGASAS_MAX_PD_CHANNELS + 8814 (le16_to_cpu(targetid_entry->target_id) / 8815 MEGASAS_MAX_DEV_PER_CHANNEL); 8816 id = le16_to_cpu(targetid_entry->target_id) % 8817 MEGASAS_MAX_DEV_PER_CHANNEL; 8818 } 8819 sdev1 = scsi_device_lookup(host, channel, id, 0); 8820 if (!sdev1) { 8821 scsi_add_device(host, channel, id, 0); 8822 } else { 8823 scsi_device_put(sdev1); 8824 } 8825 } 8826 } 8827 8828 if (scan_type & SCAN_PD_CHANNEL) { 8829 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 8830 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8831 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; 8832 sdev1 = scsi_device_lookup(host, i, j, 0); 8833 if (instance->pd_list[pd_index].driveState == 8834 MR_PD_STATE_SYSTEM) { 8835 if (!sdev1) 8836 scsi_add_device(host, i, j, 0); 8837 else 8838 scsi_device_put(sdev1); 8839 } else { 8840 if (sdev1) 8841 megasas_remove_scsi_device(sdev1); 8842 } 8843 } 8844 } 8845 } 8846 8847 if (scan_type & SCAN_VD_CHANNEL) { 8848 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 8849 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8850 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 8851 sdev1 = scsi_device_lookup(host, 8852 MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8853 if (instance->ld_ids[ld_index] != 0xff) { 8854 if (!sdev1) 8855 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8856 else 8857 scsi_device_put(sdev1); 8858 } else { 8859 if (sdev1) 8860 megasas_remove_scsi_device(sdev1); 8861 } 8862 } 8863 } 8864 } 8865 8866 } 8867 8868 static void 8869 megasas_aen_polling(struct work_struct *work) 8870 { 8871 struct megasas_aen_event *ev = 8872 container_of(work, struct megasas_aen_event, hotplug_work.work); 8873 struct megasas_instance *instance = ev->instance; 8874 union megasas_evt_class_locale class_locale; 8875 int event_type = 0; 8876 u32 seq_num; 8877 u16 ld_target_id; 8878 int error; 8879 u8 dcmd_ret = DCMD_SUCCESS; 8880 struct scsi_device *sdev1; 8881 8882 if (!instance) { 8883 printk(KERN_ERR "invalid instance!\n"); 8884 kfree(ev); 8885 return; 8886 } 8887 8888 /* Don't run the event workqueue thread if OCR is running */ 8889 mutex_lock(&instance->reset_mutex); 8890 8891 instance->ev = NULL; 8892 if (instance->evt_detail) { 8893 megasas_decode_evt(instance); 8894 8895 switch (le32_to_cpu(instance->evt_detail->code)) { 8896 8897 case MR_EVT_PD_INSERTED: 8898 case MR_EVT_PD_REMOVED: 8899 event_type = SCAN_PD_CHANNEL; 8900 break; 8901 8902 case MR_EVT_LD_OFFLINE: 8903 case MR_EVT_LD_DELETED: 8904 ld_target_id = instance->evt_detail->args.ld.target_id; 8905 sdev1 = scsi_device_lookup(instance->host, 8906 MEGASAS_MAX_PD_CHANNELS + 8907 (ld_target_id / MEGASAS_MAX_DEV_PER_CHANNEL), 8908 (ld_target_id % MEGASAS_MAX_DEV_PER_CHANNEL), 8909 0); 8910 if (sdev1) 8911 megasas_remove_scsi_device(sdev1); 8912 8913 event_type = SCAN_VD_CHANNEL; 8914 break; 8915 case MR_EVT_LD_CREATED: 8916 event_type = SCAN_VD_CHANNEL; 8917 break; 8918 8919 case MR_EVT_CFG_CLEARED: 8920 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 8921 case MR_EVT_FOREIGN_CFG_IMPORTED: 8922 case MR_EVT_LD_STATE_CHANGE: 8923 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; 8924 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 8925 instance->host->host_no); 8926 break; 8927 8928 case MR_EVT_CTRL_PROP_CHANGED: 8929 dcmd_ret = megasas_get_ctrl_info(instance); 8930 if (dcmd_ret == DCMD_SUCCESS && 8931 instance->snapdump_wait_time) { 8932 megasas_get_snapdump_properties(instance); 8933 dev_info(&instance->pdev->dev, 8934 "Snap dump wait time\t: %d\n", 8935 instance->snapdump_wait_time); 8936 } 8937 break; 8938 default: 8939 event_type = 0; 8940 break; 8941 } 8942 } else { 8943 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 8944 mutex_unlock(&instance->reset_mutex); 8945 kfree(ev); 8946 return; 8947 } 8948 8949 if (event_type) 8950 dcmd_ret = megasas_update_device_list(instance, event_type); 8951 8952 mutex_unlock(&instance->reset_mutex); 8953 8954 if (event_type && dcmd_ret == DCMD_SUCCESS) 8955 megasas_add_remove_devices(instance, event_type); 8956 8957 if (dcmd_ret == DCMD_SUCCESS) 8958 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 8959 else 8960 seq_num = instance->last_seq_num; 8961 8962 /* Register AEN with FW for latest sequence number plus 1 */ 8963 class_locale.members.reserved = 0; 8964 class_locale.members.locale = MR_EVT_LOCALE_ALL; 8965 class_locale.members.class = MR_EVT_CLASS_DEBUG; 8966 8967 if (instance->aen_cmd != NULL) { 8968 kfree(ev); 8969 return; 8970 } 8971 8972 mutex_lock(&instance->reset_mutex); 8973 error = megasas_register_aen(instance, seq_num, 8974 class_locale.word); 8975 if (error) 8976 dev_err(&instance->pdev->dev, 8977 "register aen failed error %x\n", error); 8978 8979 mutex_unlock(&instance->reset_mutex); 8980 kfree(ev); 8981 } 8982 8983 /** 8984 * megasas_init - Driver load entry point 8985 */ 8986 static int __init megasas_init(void) 8987 { 8988 int rval; 8989 8990 /* 8991 * Booted in kdump kernel, minimize memory footprints by 8992 * disabling few features 8993 */ 8994 if (reset_devices) { 8995 msix_vectors = 1; 8996 rdpq_enable = 0; 8997 dual_qdepth_disable = 1; 8998 poll_queues = 0; 8999 } 9000 9001 /* 9002 * Announce driver version and other information 9003 */ 9004 pr_info("megasas: %s\n", MEGASAS_VERSION); 9005 9006 megasas_dbg_lvl = 0; 9007 support_poll_for_event = 2; 9008 support_device_change = 1; 9009 support_nvme_encapsulation = true; 9010 support_pci_lane_margining = true; 9011 9012 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 9013 9014 /* 9015 * Register character device node 9016 */ 9017 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 9018 9019 if (rval < 0) { 9020 printk(KERN_DEBUG "megasas: failed to open device node\n"); 9021 return rval; 9022 } 9023 9024 megasas_mgmt_majorno = rval; 9025 9026 megasas_init_debugfs(); 9027 9028 /* 9029 * Register ourselves as PCI hotplug module 9030 */ 9031 rval = pci_register_driver(&megasas_pci_driver); 9032 9033 if (rval) { 9034 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 9035 goto err_pcidrv; 9036 } 9037 9038 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 9039 (event_log_level > MFI_EVT_CLASS_DEAD)) { 9040 pr_warn("megaraid_sas: provided event log level is out of range, setting it to default 2(CLASS_CRITICAL), permissible range is: -2 to 4\n"); 9041 event_log_level = MFI_EVT_CLASS_CRITICAL; 9042 } 9043 9044 rval = driver_create_file(&megasas_pci_driver.driver, 9045 &driver_attr_version); 9046 if (rval) 9047 goto err_dcf_attr_ver; 9048 9049 rval = driver_create_file(&megasas_pci_driver.driver, 9050 &driver_attr_release_date); 9051 if (rval) 9052 goto err_dcf_rel_date; 9053 9054 rval = driver_create_file(&megasas_pci_driver.driver, 9055 &driver_attr_support_poll_for_event); 9056 if (rval) 9057 goto err_dcf_support_poll_for_event; 9058 9059 rval = driver_create_file(&megasas_pci_driver.driver, 9060 &driver_attr_dbg_lvl); 9061 if (rval) 9062 goto err_dcf_dbg_lvl; 9063 rval = driver_create_file(&megasas_pci_driver.driver, 9064 &driver_attr_support_device_change); 9065 if (rval) 9066 goto err_dcf_support_device_change; 9067 9068 rval = driver_create_file(&megasas_pci_driver.driver, 9069 &driver_attr_support_nvme_encapsulation); 9070 if (rval) 9071 goto err_dcf_support_nvme_encapsulation; 9072 9073 rval = driver_create_file(&megasas_pci_driver.driver, 9074 &driver_attr_support_pci_lane_margining); 9075 if (rval) 9076 goto err_dcf_support_pci_lane_margining; 9077 9078 return rval; 9079 9080 err_dcf_support_pci_lane_margining: 9081 driver_remove_file(&megasas_pci_driver.driver, 9082 &driver_attr_support_nvme_encapsulation); 9083 9084 err_dcf_support_nvme_encapsulation: 9085 driver_remove_file(&megasas_pci_driver.driver, 9086 &driver_attr_support_device_change); 9087 9088 err_dcf_support_device_change: 9089 driver_remove_file(&megasas_pci_driver.driver, 9090 &driver_attr_dbg_lvl); 9091 err_dcf_dbg_lvl: 9092 driver_remove_file(&megasas_pci_driver.driver, 9093 &driver_attr_support_poll_for_event); 9094 err_dcf_support_poll_for_event: 9095 driver_remove_file(&megasas_pci_driver.driver, 9096 &driver_attr_release_date); 9097 err_dcf_rel_date: 9098 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 9099 err_dcf_attr_ver: 9100 pci_unregister_driver(&megasas_pci_driver); 9101 err_pcidrv: 9102 megasas_exit_debugfs(); 9103 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 9104 return rval; 9105 } 9106 9107 /** 9108 * megasas_exit - Driver unload entry point 9109 */ 9110 static void __exit megasas_exit(void) 9111 { 9112 driver_remove_file(&megasas_pci_driver.driver, 9113 &driver_attr_dbg_lvl); 9114 driver_remove_file(&megasas_pci_driver.driver, 9115 &driver_attr_support_poll_for_event); 9116 driver_remove_file(&megasas_pci_driver.driver, 9117 &driver_attr_support_device_change); 9118 driver_remove_file(&megasas_pci_driver.driver, 9119 &driver_attr_release_date); 9120 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 9121 driver_remove_file(&megasas_pci_driver.driver, 9122 &driver_attr_support_nvme_encapsulation); 9123 driver_remove_file(&megasas_pci_driver.driver, 9124 &driver_attr_support_pci_lane_margining); 9125 9126 pci_unregister_driver(&megasas_pci_driver); 9127 megasas_exit_debugfs(); 9128 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 9129 } 9130 9131 module_init(megasas_init); 9132 module_exit(megasas_exit); 9133