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megaraid_sas_base.c
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linux-6.19.14/drivers/scsi/megaraid/megaraid_sas_base.c
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 <linux/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 41#include <scsi/scsi.h> 42#include <scsi/scsi_cmnd.h> 43#include <scsi/scsi_device.h> 44#include <scsi/scsi_host.h> 45#include <scsi/scsi_tcq.h> 46#include <scsi/scsi_dbg.h> 47#include "megaraid_sas_fusion.h" 48#include "megaraid_sas.h" 49 50/* 51 * Number of sectors per IO command 52 * Will be set in megasas_init_mfi if user does not provide 53 */ 54static unsigned int max_sectors; 55module_param_named(max_sectors, max_sectors, int, 0444); 56MODULE_PARM_DESC(max_sectors, 57 "Maximum number of sectors per IO command"); 58 59static int msix_disable; 60module_param(msix_disable, int, 0444); 61MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); 62 63static unsigned int msix_vectors; 64module_param(msix_vectors, int, 0444); 65MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); 66 67static int allow_vf_ioctls; 68module_param(allow_vf_ioctls, int, 0444); 69MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); 70 71static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; 72module_param(throttlequeuedepth, int, 0444); 73MODULE_PARM_DESC(throttlequeuedepth, 74 "Adapter queue depth when throttled due to I/O timeout. Default: 16"); 75 76unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; 77module_param(resetwaittime, int, 0444); 78MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s"); 79 80static int smp_affinity_enable = 1; 81module_param(smp_affinity_enable, int, 0444); 82MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)"); 83 84static int rdpq_enable = 1; 85module_param(rdpq_enable, int, 0444); 86MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)"); 87 88unsigned int dual_qdepth_disable; 89module_param(dual_qdepth_disable, int, 0444); 90MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); 91 92static unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 93module_param(scmd_timeout, int, 0444); 94MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); 95 96static int perf_mode = -1; 97module_param(perf_mode, int, 0444); 98MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t" 99 "0 - balanced: High iops and low latency queues are allocated &\n\t\t" 100 "interrupt coalescing is enabled only on high iops queues\n\t\t" 101 "1 - iops: High iops queues are not allocated &\n\t\t" 102 "interrupt coalescing is enabled on all queues\n\t\t" 103 "2 - latency: High iops queues are not allocated &\n\t\t" 104 "interrupt coalescing is disabled on all queues\n\t\t" 105 "default mode is 'balanced'" 106 ); 107 108static int event_log_level = MFI_EVT_CLASS_CRITICAL; 109module_param(event_log_level, int, 0644); 110MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)"); 111 112static unsigned int enable_sdev_max_qd; 113module_param(enable_sdev_max_qd, int, 0444); 114MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0"); 115 116static int poll_queues; 117module_param(poll_queues, int, 0444); 118MODULE_PARM_DESC(poll_queues, "Number of queues to be use for io_uring poll mode.\n\t\t" 119 "This parameter is effective only if host_tagset_enable=1 &\n\t\t" 120 "It is not applicable for MFI_SERIES. &\n\t\t" 121 "Driver will work in latency mode. &\n\t\t" 122 "High iops queues are not allocated &\n\t\t" 123 ); 124 125static int host_tagset_enable = 1; 126module_param(host_tagset_enable, int, 0444); 127MODULE_PARM_DESC(host_tagset_enable, "Shared host tagset enable/disable Default: enable(1)"); 128 129MODULE_LICENSE("GPL"); 130MODULE_VERSION(MEGASAS_VERSION); 131MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com"); 132MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver"); 133 134int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); 135static int megasas_get_pd_list(struct megasas_instance *instance); 136static int megasas_ld_list_query(struct megasas_instance *instance, 137 u8 query_type); 138static int megasas_issue_init_mfi(struct megasas_instance *instance); 139static int megasas_register_aen(struct megasas_instance *instance, 140 u32 seq_num, u32 class_locale_word); 141static void megasas_get_pd_info(struct megasas_instance *instance, 142 struct scsi_device *sdev); 143static void 144megasas_set_ld_removed_by_fw(struct megasas_instance *instance); 145 146/* 147 * PCI ID table for all supported controllers 148 */ 149static const struct pci_device_id megasas_pci_table[] = { 150 151 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, 152 /* xscale IOP */ 153 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, 154 /* ppc IOP */ 155 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, 156 /* ppc IOP */ 157 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, 158 /* gen2*/ 159 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, 160 /* gen2*/ 161 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, 162 /* skinny*/ 163 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, 164 /* skinny*/ 165 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, 166 /* xscale IOP, vega */ 167 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, 168 /* xscale IOP */ 169 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, 170 /* Fusion */ 171 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, 172 /* Plasma */ 173 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, 174 /* Invader */ 175 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, 176 /* Fury */ 177 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, 178 /* Intruder */ 179 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, 180 /* Intruder 24 port*/ 181 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, 182 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, 183 /* VENTURA */ 184 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)}, 185 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)}, 186 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)}, 187 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)}, 188 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)}, 189 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)}, 190 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)}, 191 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)}, 192 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)}, 193 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)}, 194 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)}, 195 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)}, 196 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)}, 197 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)}, 198 {} 199}; 200 201MODULE_DEVICE_TABLE(pci, megasas_pci_table); 202 203static int megasas_mgmt_majorno; 204struct megasas_mgmt_info megasas_mgmt_info; 205static struct fasync_struct *megasas_async_queue; 206static DEFINE_MUTEX(megasas_async_queue_mutex); 207 208static int megasas_poll_wait_aen; 209static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); 210static u32 support_poll_for_event; 211u32 megasas_dbg_lvl; 212static u32 support_device_change; 213static bool support_nvme_encapsulation; 214static bool support_pci_lane_margining; 215 216/* define lock for aen poll */ 217static DEFINE_SPINLOCK(poll_aen_lock); 218 219extern struct dentry *megasas_debugfs_root; 220extern int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num); 221 222void 223megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 224 u8 alt_status); 225static u32 226megasas_read_fw_status_reg_gen2(struct megasas_instance *instance); 227static int 228megasas_adp_reset_gen2(struct megasas_instance *instance, 229 struct megasas_register_set __iomem *reg_set); 230static irqreturn_t megasas_isr(int irq, void *devp); 231static u32 232megasas_init_adapter_mfi(struct megasas_instance *instance); 233u32 234megasas_build_and_issue_cmd(struct megasas_instance *instance, 235 struct scsi_cmnd *scmd); 236static void megasas_complete_cmd_dpc(unsigned long instance_addr); 237int 238wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, 239 int seconds); 240void megasas_fusion_ocr_wq(struct work_struct *work); 241static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 242 int initial); 243static int 244megasas_set_dma_mask(struct megasas_instance *instance); 245static int 246megasas_alloc_ctrl_mem(struct megasas_instance *instance); 247static inline void 248megasas_free_ctrl_mem(struct megasas_instance *instance); 249static inline int 250megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance); 251static inline void 252megasas_free_ctrl_dma_buffers(struct megasas_instance *instance); 253static inline void 254megasas_init_ctrl_params(struct megasas_instance *instance); 255 256u32 megasas_readl(struct megasas_instance *instance, 257 const volatile void __iomem *addr) 258{ 259 u32 i = 0, ret_val; 260 /* 261 * Due to a HW errata in Aero controllers, reads to certain 262 * Fusion registers could intermittently return all zeroes. 263 * This behavior is transient in nature and subsequent reads will 264 * return valid value. As a workaround in driver, retry readl for 265 * up to thirty times until a non-zero value is read. 266 */ 267 if (instance->adapter_type == AERO_SERIES) { 268 do { 269 ret_val = readl(addr); 270 i++; 271 } while (ret_val == 0 && i < 30); 272 return ret_val; 273 } else { 274 return readl(addr); 275 } 276} 277 278/** 279 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs 280 * @instance: Adapter soft state 281 * @dcmd: DCMD frame inside MFI command 282 * @dma_addr: DMA address of buffer to be passed to FW 283 * @dma_len: Length of DMA buffer to be passed to FW 284 * @return: void 285 */ 286void megasas_set_dma_settings(struct megasas_instance *instance, 287 struct megasas_dcmd_frame *dcmd, 288 dma_addr_t dma_addr, u32 dma_len) 289{ 290 if (instance->consistent_mask_64bit) { 291 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr); 292 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len); 293 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64); 294 295 } else { 296 dcmd->sgl.sge32[0].phys_addr = 297 cpu_to_le32(lower_32_bits(dma_addr)); 298 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len); 299 dcmd->flags = cpu_to_le16(dcmd->flags); 300 } 301} 302 303static void 304megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 305{ 306 instance->instancet->fire_cmd(instance, 307 cmd->frame_phys_addr, 0, instance->reg_set); 308 return; 309} 310 311/** 312 * megasas_get_cmd - Get a command from the free pool 313 * @instance: Adapter soft state 314 * 315 * Returns a free command from the pool 316 */ 317struct megasas_cmd *megasas_get_cmd(struct megasas_instance 318 *instance) 319{ 320 unsigned long flags; 321 struct megasas_cmd *cmd = NULL; 322 323 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 324 325 if (!list_empty(&instance->cmd_pool)) { 326 cmd = list_entry((&instance->cmd_pool)->next, 327 struct megasas_cmd, list); 328 list_del_init(&cmd->list); 329 } else { 330 dev_err(&instance->pdev->dev, "Command pool empty!\n"); 331 } 332 333 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 334 return cmd; 335} 336 337/** 338 * megasas_return_cmd - Return a cmd to free command pool 339 * @instance: Adapter soft state 340 * @cmd: Command packet to be returned to free command pool 341 */ 342void 343megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 344{ 345 unsigned long flags; 346 u32 blk_tags; 347 struct megasas_cmd_fusion *cmd_fusion; 348 struct fusion_context *fusion = instance->ctrl_context; 349 350 /* This flag is used only for fusion adapter. 351 * Wait for Interrupt for Polled mode DCMD 352 */ 353 if (cmd->flags & DRV_DCMD_POLLED_MODE) 354 return; 355 356 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 357 358 if (fusion) { 359 blk_tags = instance->max_scsi_cmds + cmd->index; 360 cmd_fusion = fusion->cmd_list[blk_tags]; 361 megasas_return_cmd_fusion(instance, cmd_fusion); 362 } 363 cmd->scmd = NULL; 364 cmd->frame_count = 0; 365 cmd->flags = 0; 366 memset(cmd->frame, 0, instance->mfi_frame_size); 367 cmd->frame->io.context = cpu_to_le32(cmd->index); 368 if (!fusion && reset_devices) 369 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 370 list_add(&cmd->list, (&instance->cmd_pool)->next); 371 372 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 373 374} 375 376static const char * 377format_timestamp(uint32_t timestamp) 378{ 379 static char buffer[32]; 380 381 if ((timestamp & 0xff000000) == 0xff000000) 382 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 383 0x00ffffff); 384 else 385 snprintf(buffer, sizeof(buffer), "%us", timestamp); 386 return buffer; 387} 388 389static const char * 390format_class(int8_t class) 391{ 392 static char buffer[6]; 393 394 switch (class) { 395 case MFI_EVT_CLASS_DEBUG: 396 return "debug"; 397 case MFI_EVT_CLASS_PROGRESS: 398 return "progress"; 399 case MFI_EVT_CLASS_INFO: 400 return "info"; 401 case MFI_EVT_CLASS_WARNING: 402 return "WARN"; 403 case MFI_EVT_CLASS_CRITICAL: 404 return "CRIT"; 405 case MFI_EVT_CLASS_FATAL: 406 return "FATAL"; 407 case MFI_EVT_CLASS_DEAD: 408 return "DEAD"; 409 default: 410 snprintf(buffer, sizeof(buffer), "%d", class); 411 return buffer; 412 } 413} 414 415/** 416 * megasas_decode_evt: Decode FW AEN event and print critical event 417 * for information. 418 * @instance: Adapter soft state 419 */ 420static void 421megasas_decode_evt(struct megasas_instance *instance) 422{ 423 struct megasas_evt_detail *evt_detail = instance->evt_detail; 424 union megasas_evt_class_locale class_locale; 425 class_locale.word = le32_to_cpu(evt_detail->cl.word); 426 427 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 428 (event_log_level > MFI_EVT_CLASS_DEAD)) { 429 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"); 430 event_log_level = MFI_EVT_CLASS_CRITICAL; 431 } 432 433 if (class_locale.members.class >= event_log_level) 434 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", 435 le32_to_cpu(evt_detail->seq_num), 436 format_timestamp(le32_to_cpu(evt_detail->time_stamp)), 437 (class_locale.members.locale), 438 format_class(class_locale.members.class), 439 evt_detail->description); 440 441 if (megasas_dbg_lvl & LD_PD_DEBUG) 442 dev_info(&instance->pdev->dev, 443 "evt_detail.args.ld.target_id/index %d/%d\n", 444 evt_detail->args.ld.target_id, evt_detail->args.ld.ld_index); 445 446} 447 448/* 449 * The following functions are defined for xscale 450 * (deviceid : 1064R, PERC5) controllers 451 */ 452 453/** 454 * megasas_enable_intr_xscale - Enables interrupts 455 * @instance: Adapter soft state 456 */ 457static inline void 458megasas_enable_intr_xscale(struct megasas_instance *instance) 459{ 460 struct megasas_register_set __iomem *regs; 461 462 regs = instance->reg_set; 463 writel(0, &(regs)->outbound_intr_mask); 464 465 /* Dummy readl to force pci flush */ 466 readl(®s->outbound_intr_mask); 467} 468 469/** 470 * megasas_disable_intr_xscale -Disables interrupt 471 * @instance: Adapter soft state 472 */ 473static inline void 474megasas_disable_intr_xscale(struct megasas_instance *instance) 475{ 476 struct megasas_register_set __iomem *regs; 477 u32 mask = 0x1f; 478 479 regs = instance->reg_set; 480 writel(mask, ®s->outbound_intr_mask); 481 /* Dummy readl to force pci flush */ 482 readl(®s->outbound_intr_mask); 483} 484 485/** 486 * megasas_read_fw_status_reg_xscale - returns the current FW status value 487 * @instance: Adapter soft state 488 */ 489static u32 490megasas_read_fw_status_reg_xscale(struct megasas_instance *instance) 491{ 492 return readl(&instance->reg_set->outbound_msg_0); 493} 494/** 495 * megasas_clear_intr_xscale - Check & clear interrupt 496 * @instance: Adapter soft state 497 */ 498static int 499megasas_clear_intr_xscale(struct megasas_instance *instance) 500{ 501 u32 status; 502 u32 mfiStatus = 0; 503 struct megasas_register_set __iomem *regs; 504 regs = instance->reg_set; 505 506 /* 507 * Check if it is our interrupt 508 */ 509 status = readl(®s->outbound_intr_status); 510 511 if (status & MFI_OB_INTR_STATUS_MASK) 512 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 513 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) 514 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 515 516 /* 517 * Clear the interrupt by writing back the same value 518 */ 519 if (mfiStatus) 520 writel(status, ®s->outbound_intr_status); 521 522 /* Dummy readl to force pci flush */ 523 readl(®s->outbound_intr_status); 524 525 return mfiStatus; 526} 527 528/** 529 * megasas_fire_cmd_xscale - Sends command to the FW 530 * @instance: Adapter soft state 531 * @frame_phys_addr : Physical address of cmd 532 * @frame_count : Number of frames for the command 533 * @regs : MFI register set 534 */ 535static inline void 536megasas_fire_cmd_xscale(struct megasas_instance *instance, 537 dma_addr_t frame_phys_addr, 538 u32 frame_count, 539 struct megasas_register_set __iomem *regs) 540{ 541 unsigned long flags; 542 543 spin_lock_irqsave(&instance->hba_lock, flags); 544 writel((frame_phys_addr >> 3)|(frame_count), 545 &(regs)->inbound_queue_port); 546 spin_unlock_irqrestore(&instance->hba_lock, flags); 547} 548 549/** 550 * megasas_adp_reset_xscale - For controller reset 551 * @instance: Adapter soft state 552 * @regs: MFI register set 553 */ 554static int 555megasas_adp_reset_xscale(struct megasas_instance *instance, 556 struct megasas_register_set __iomem *regs) 557{ 558 u32 i; 559 u32 pcidata; 560 561 writel(MFI_ADP_RESET, ®s->inbound_doorbell); 562 563 for (i = 0; i < 3; i++) 564 msleep(1000); /* sleep for 3 secs */ 565 pcidata = 0; 566 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); 567 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); 568 if (pcidata & 0x2) { 569 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); 570 pcidata &= ~0x2; 571 pci_write_config_dword(instance->pdev, 572 MFI_1068_PCSR_OFFSET, pcidata); 573 574 for (i = 0; i < 2; i++) 575 msleep(1000); /* need to wait 2 secs again */ 576 577 pcidata = 0; 578 pci_read_config_dword(instance->pdev, 579 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); 580 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); 581 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { 582 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); 583 pcidata = 0; 584 pci_write_config_dword(instance->pdev, 585 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); 586 } 587 } 588 return 0; 589} 590 591/** 592 * megasas_check_reset_xscale - For controller reset check 593 * @instance: Adapter soft state 594 * @regs: MFI register set 595 */ 596static int 597megasas_check_reset_xscale(struct megasas_instance *instance, 598 struct megasas_register_set __iomem *regs) 599{ 600 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && 601 (le32_to_cpu(*instance->consumer) == 602 MEGASAS_ADPRESET_INPROG_SIGN)) 603 return 1; 604 return 0; 605} 606 607static struct megasas_instance_template megasas_instance_template_xscale = { 608 609 .fire_cmd = megasas_fire_cmd_xscale, 610 .enable_intr = megasas_enable_intr_xscale, 611 .disable_intr = megasas_disable_intr_xscale, 612 .clear_intr = megasas_clear_intr_xscale, 613 .read_fw_status_reg = megasas_read_fw_status_reg_xscale, 614 .adp_reset = megasas_adp_reset_xscale, 615 .check_reset = megasas_check_reset_xscale, 616 .service_isr = megasas_isr, 617 .tasklet = megasas_complete_cmd_dpc, 618 .init_adapter = megasas_init_adapter_mfi, 619 .build_and_issue_cmd = megasas_build_and_issue_cmd, 620 .issue_dcmd = megasas_issue_dcmd, 621}; 622 623/* 624 * This is the end of set of functions & definitions specific 625 * to xscale (deviceid : 1064R, PERC5) controllers 626 */ 627 628/* 629 * The following functions are defined for ppc (deviceid : 0x60) 630 * controllers 631 */ 632 633/** 634 * megasas_enable_intr_ppc - Enables interrupts 635 * @instance: Adapter soft state 636 */ 637static inline void 638megasas_enable_intr_ppc(struct megasas_instance *instance) 639{ 640 struct megasas_register_set __iomem *regs; 641 642 regs = instance->reg_set; 643 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 644 645 writel(~0x80000000, &(regs)->outbound_intr_mask); 646 647 /* Dummy readl to force pci flush */ 648 readl(®s->outbound_intr_mask); 649} 650 651/** 652 * megasas_disable_intr_ppc - Disable interrupt 653 * @instance: Adapter soft state 654 */ 655static inline void 656megasas_disable_intr_ppc(struct megasas_instance *instance) 657{ 658 struct megasas_register_set __iomem *regs; 659 u32 mask = 0xFFFFFFFF; 660 661 regs = instance->reg_set; 662 writel(mask, ®s->outbound_intr_mask); 663 /* Dummy readl to force pci flush */ 664 readl(®s->outbound_intr_mask); 665} 666 667/** 668 * megasas_read_fw_status_reg_ppc - returns the current FW status value 669 * @instance: Adapter soft state 670 */ 671static u32 672megasas_read_fw_status_reg_ppc(struct megasas_instance *instance) 673{ 674 return readl(&instance->reg_set->outbound_scratch_pad_0); 675} 676 677/** 678 * megasas_clear_intr_ppc - Check & clear interrupt 679 * @instance: Adapter soft state 680 */ 681static int 682megasas_clear_intr_ppc(struct megasas_instance *instance) 683{ 684 u32 status, mfiStatus = 0; 685 struct megasas_register_set __iomem *regs; 686 regs = instance->reg_set; 687 688 /* 689 * Check if it is our interrupt 690 */ 691 status = readl(®s->outbound_intr_status); 692 693 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) 694 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 695 696 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) 697 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 698 699 /* 700 * Clear the interrupt by writing back the same value 701 */ 702 writel(status, ®s->outbound_doorbell_clear); 703 704 /* Dummy readl to force pci flush */ 705 readl(®s->outbound_doorbell_clear); 706 707 return mfiStatus; 708} 709 710/** 711 * megasas_fire_cmd_ppc - Sends command to the FW 712 * @instance: Adapter soft state 713 * @frame_phys_addr: Physical address of cmd 714 * @frame_count: Number of frames for the command 715 * @regs: MFI register set 716 */ 717static inline void 718megasas_fire_cmd_ppc(struct megasas_instance *instance, 719 dma_addr_t frame_phys_addr, 720 u32 frame_count, 721 struct megasas_register_set __iomem *regs) 722{ 723 unsigned long flags; 724 725 spin_lock_irqsave(&instance->hba_lock, flags); 726 writel((frame_phys_addr | (frame_count<<1))|1, 727 &(regs)->inbound_queue_port); 728 spin_unlock_irqrestore(&instance->hba_lock, flags); 729} 730 731/** 732 * megasas_check_reset_ppc - For controller reset check 733 * @instance: Adapter soft state 734 * @regs: MFI register set 735 */ 736static int 737megasas_check_reset_ppc(struct megasas_instance *instance, 738 struct megasas_register_set __iomem *regs) 739{ 740 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 741 return 1; 742 743 return 0; 744} 745 746static struct megasas_instance_template megasas_instance_template_ppc = { 747 748 .fire_cmd = megasas_fire_cmd_ppc, 749 .enable_intr = megasas_enable_intr_ppc, 750 .disable_intr = megasas_disable_intr_ppc, 751 .clear_intr = megasas_clear_intr_ppc, 752 .read_fw_status_reg = megasas_read_fw_status_reg_ppc, 753 .adp_reset = megasas_adp_reset_xscale, 754 .check_reset = megasas_check_reset_ppc, 755 .service_isr = megasas_isr, 756 .tasklet = megasas_complete_cmd_dpc, 757 .init_adapter = megasas_init_adapter_mfi, 758 .build_and_issue_cmd = megasas_build_and_issue_cmd, 759 .issue_dcmd = megasas_issue_dcmd, 760}; 761 762/** 763 * megasas_enable_intr_skinny - Enables interrupts 764 * @instance: Adapter soft state 765 */ 766static inline void 767megasas_enable_intr_skinny(struct megasas_instance *instance) 768{ 769 struct megasas_register_set __iomem *regs; 770 771 regs = instance->reg_set; 772 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); 773 774 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 775 776 /* Dummy readl to force pci flush */ 777 readl(®s->outbound_intr_mask); 778} 779 780/** 781 * megasas_disable_intr_skinny - Disables interrupt 782 * @instance: Adapter soft state 783 */ 784static inline void 785megasas_disable_intr_skinny(struct megasas_instance *instance) 786{ 787 struct megasas_register_set __iomem *regs; 788 u32 mask = 0xFFFFFFFF; 789 790 regs = instance->reg_set; 791 writel(mask, ®s->outbound_intr_mask); 792 /* Dummy readl to force pci flush */ 793 readl(®s->outbound_intr_mask); 794} 795 796/** 797 * megasas_read_fw_status_reg_skinny - returns the current FW status value 798 * @instance: Adapter soft state 799 */ 800static u32 801megasas_read_fw_status_reg_skinny(struct megasas_instance *instance) 802{ 803 return readl(&instance->reg_set->outbound_scratch_pad_0); 804} 805 806/** 807 * megasas_clear_intr_skinny - Check & clear interrupt 808 * @instance: Adapter soft state 809 */ 810static int 811megasas_clear_intr_skinny(struct megasas_instance *instance) 812{ 813 u32 status; 814 u32 mfiStatus = 0; 815 struct megasas_register_set __iomem *regs; 816 regs = instance->reg_set; 817 818 /* 819 * Check if it is our interrupt 820 */ 821 status = readl(®s->outbound_intr_status); 822 823 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { 824 return 0; 825 } 826 827 /* 828 * Check if it is our interrupt 829 */ 830 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) == 831 MFI_STATE_FAULT) { 832 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 833 } else 834 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 835 836 /* 837 * Clear the interrupt by writing back the same value 838 */ 839 writel(status, ®s->outbound_intr_status); 840 841 /* 842 * dummy read to flush PCI 843 */ 844 readl(®s->outbound_intr_status); 845 846 return mfiStatus; 847} 848 849/** 850 * megasas_fire_cmd_skinny - Sends command to the FW 851 * @instance: Adapter soft state 852 * @frame_phys_addr: Physical address of cmd 853 * @frame_count: Number of frames for the command 854 * @regs: MFI register set 855 */ 856static inline void 857megasas_fire_cmd_skinny(struct megasas_instance *instance, 858 dma_addr_t frame_phys_addr, 859 u32 frame_count, 860 struct megasas_register_set __iomem *regs) 861{ 862 unsigned long flags; 863 864 spin_lock_irqsave(&instance->hba_lock, flags); 865 writel(upper_32_bits(frame_phys_addr), 866 &(regs)->inbound_high_queue_port); 867 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, 868 &(regs)->inbound_low_queue_port); 869 spin_unlock_irqrestore(&instance->hba_lock, flags); 870} 871 872/** 873 * megasas_check_reset_skinny - For controller reset check 874 * @instance: Adapter soft state 875 * @regs: MFI register set 876 */ 877static int 878megasas_check_reset_skinny(struct megasas_instance *instance, 879 struct megasas_register_set __iomem *regs) 880{ 881 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 882 return 1; 883 884 return 0; 885} 886 887static struct megasas_instance_template megasas_instance_template_skinny = { 888 889 .fire_cmd = megasas_fire_cmd_skinny, 890 .enable_intr = megasas_enable_intr_skinny, 891 .disable_intr = megasas_disable_intr_skinny, 892 .clear_intr = megasas_clear_intr_skinny, 893 .read_fw_status_reg = megasas_read_fw_status_reg_skinny, 894 .adp_reset = megasas_adp_reset_gen2, 895 .check_reset = megasas_check_reset_skinny, 896 .service_isr = megasas_isr, 897 .tasklet = megasas_complete_cmd_dpc, 898 .init_adapter = megasas_init_adapter_mfi, 899 .build_and_issue_cmd = megasas_build_and_issue_cmd, 900 .issue_dcmd = megasas_issue_dcmd, 901}; 902 903 904/* 905 * The following functions are defined for gen2 (deviceid : 0x78 0x79) 906 * controllers 907 */ 908 909/** 910 * megasas_enable_intr_gen2 - Enables interrupts 911 * @instance: Adapter soft state 912 */ 913static inline void 914megasas_enable_intr_gen2(struct megasas_instance *instance) 915{ 916 struct megasas_register_set __iomem *regs; 917 918 regs = instance->reg_set; 919 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 920 921 /* write ~0x00000005 (4 & 1) to the intr mask*/ 922 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 923 924 /* Dummy readl to force pci flush */ 925 readl(®s->outbound_intr_mask); 926} 927 928/** 929 * megasas_disable_intr_gen2 - Disables interrupt 930 * @instance: Adapter soft state 931 */ 932static inline void 933megasas_disable_intr_gen2(struct megasas_instance *instance) 934{ 935 struct megasas_register_set __iomem *regs; 936 u32 mask = 0xFFFFFFFF; 937 938 regs = instance->reg_set; 939 writel(mask, ®s->outbound_intr_mask); 940 /* Dummy readl to force pci flush */ 941 readl(®s->outbound_intr_mask); 942} 943 944/** 945 * megasas_read_fw_status_reg_gen2 - returns the current FW status value 946 * @instance: Adapter soft state 947 */ 948static u32 949megasas_read_fw_status_reg_gen2(struct megasas_instance *instance) 950{ 951 return readl(&instance->reg_set->outbound_scratch_pad_0); 952} 953 954/** 955 * megasas_clear_intr_gen2 - Check & clear interrupt 956 * @instance: Adapter soft state 957 */ 958static int 959megasas_clear_intr_gen2(struct megasas_instance *instance) 960{ 961 u32 status; 962 u32 mfiStatus = 0; 963 struct megasas_register_set __iomem *regs; 964 regs = instance->reg_set; 965 966 /* 967 * Check if it is our interrupt 968 */ 969 status = readl(®s->outbound_intr_status); 970 971 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { 972 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 973 } 974 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { 975 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 976 } 977 978 /* 979 * Clear the interrupt by writing back the same value 980 */ 981 if (mfiStatus) 982 writel(status, ®s->outbound_doorbell_clear); 983 984 /* Dummy readl to force pci flush */ 985 readl(®s->outbound_intr_status); 986 987 return mfiStatus; 988} 989 990/** 991 * megasas_fire_cmd_gen2 - Sends command to the FW 992 * @instance: Adapter soft state 993 * @frame_phys_addr: Physical address of cmd 994 * @frame_count: Number of frames for the command 995 * @regs: MFI register set 996 */ 997static inline void 998megasas_fire_cmd_gen2(struct megasas_instance *instance, 999 dma_addr_t frame_phys_addr, 1000 u32 frame_count, 1001 struct megasas_register_set __iomem *regs) 1002{ 1003 unsigned long flags; 1004 1005 spin_lock_irqsave(&instance->hba_lock, flags); 1006 writel((frame_phys_addr | (frame_count<<1))|1, 1007 &(regs)->inbound_queue_port); 1008 spin_unlock_irqrestore(&instance->hba_lock, flags); 1009} 1010 1011/** 1012 * megasas_adp_reset_gen2 - For controller reset 1013 * @instance: Adapter soft state 1014 * @reg_set: MFI register set 1015 */ 1016static int 1017megasas_adp_reset_gen2(struct megasas_instance *instance, 1018 struct megasas_register_set __iomem *reg_set) 1019{ 1020 u32 retry = 0 ; 1021 u32 HostDiag; 1022 u32 __iomem *seq_offset = ®_set->seq_offset; 1023 u32 __iomem *hostdiag_offset = ®_set->host_diag; 1024 1025 if (instance->instancet == &megasas_instance_template_skinny) { 1026 seq_offset = ®_set->fusion_seq_offset; 1027 hostdiag_offset = ®_set->fusion_host_diag; 1028 } 1029 1030 writel(0, seq_offset); 1031 writel(4, seq_offset); 1032 writel(0xb, seq_offset); 1033 writel(2, seq_offset); 1034 writel(7, seq_offset); 1035 writel(0xd, seq_offset); 1036 1037 msleep(1000); 1038 1039 HostDiag = (u32)readl(hostdiag_offset); 1040 1041 while (!(HostDiag & DIAG_WRITE_ENABLE)) { 1042 msleep(100); 1043 HostDiag = (u32)readl(hostdiag_offset); 1044 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", 1045 retry, HostDiag); 1046 1047 if (retry++ >= 100) 1048 return 1; 1049 1050 } 1051 1052 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); 1053 1054 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); 1055 1056 ssleep(10); 1057 1058 HostDiag = (u32)readl(hostdiag_offset); 1059 while (HostDiag & DIAG_RESET_ADAPTER) { 1060 msleep(100); 1061 HostDiag = (u32)readl(hostdiag_offset); 1062 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", 1063 retry, HostDiag); 1064 1065 if (retry++ >= 1000) 1066 return 1; 1067 1068 } 1069 return 0; 1070} 1071 1072/** 1073 * megasas_check_reset_gen2 - For controller reset check 1074 * @instance: Adapter soft state 1075 * @regs: MFI register set 1076 */ 1077static int 1078megasas_check_reset_gen2(struct megasas_instance *instance, 1079 struct megasas_register_set __iomem *regs) 1080{ 1081 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1082 return 1; 1083 1084 return 0; 1085} 1086 1087static struct megasas_instance_template megasas_instance_template_gen2 = { 1088 1089 .fire_cmd = megasas_fire_cmd_gen2, 1090 .enable_intr = megasas_enable_intr_gen2, 1091 .disable_intr = megasas_disable_intr_gen2, 1092 .clear_intr = megasas_clear_intr_gen2, 1093 .read_fw_status_reg = megasas_read_fw_status_reg_gen2, 1094 .adp_reset = megasas_adp_reset_gen2, 1095 .check_reset = megasas_check_reset_gen2, 1096 .service_isr = megasas_isr, 1097 .tasklet = megasas_complete_cmd_dpc, 1098 .init_adapter = megasas_init_adapter_mfi, 1099 .build_and_issue_cmd = megasas_build_and_issue_cmd, 1100 .issue_dcmd = megasas_issue_dcmd, 1101}; 1102 1103/* 1104 * This is the end of set of functions & definitions 1105 * specific to gen2 (deviceid : 0x78, 0x79) controllers 1106 */ 1107 1108/* 1109 * Template added for TB (Fusion) 1110 */ 1111extern struct megasas_instance_template megasas_instance_template_fusion; 1112 1113/** 1114 * megasas_issue_polled - Issues a polling command 1115 * @instance: Adapter soft state 1116 * @cmd: Command packet to be issued 1117 * 1118 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. 1119 */ 1120int 1121megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) 1122{ 1123 struct megasas_header *frame_hdr = &cmd->frame->hdr; 1124 1125 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; 1126 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); 1127 1128 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1129 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1130 __func__, __LINE__); 1131 return DCMD_INIT; 1132 } 1133 1134 instance->instancet->issue_dcmd(instance, cmd); 1135 1136 return wait_and_poll(instance, cmd, instance->requestorId ? 1137 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); 1138} 1139 1140/** 1141 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds 1142 * @instance: Adapter soft state 1143 * @cmd: Command to be issued 1144 * @timeout: Timeout in seconds 1145 * 1146 * This function waits on an event for the command to be returned from ISR. 1147 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1148 * Used to issue ioctl commands. 1149 */ 1150int 1151megasas_issue_blocked_cmd(struct megasas_instance *instance, 1152 struct megasas_cmd *cmd, int timeout) 1153{ 1154 int ret = 0; 1155 cmd->cmd_status_drv = DCMD_INIT; 1156 1157 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1158 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1159 __func__, __LINE__); 1160 return DCMD_INIT; 1161 } 1162 1163 instance->instancet->issue_dcmd(instance, cmd); 1164 1165 if (timeout) { 1166 ret = wait_event_timeout(instance->int_cmd_wait_q, 1167 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1168 if (!ret) { 1169 dev_err(&instance->pdev->dev, 1170 "DCMD(opcode: 0x%x) is timed out, func:%s\n", 1171 cmd->frame->dcmd.opcode, __func__); 1172 return DCMD_TIMEOUT; 1173 } 1174 } else 1175 wait_event(instance->int_cmd_wait_q, 1176 cmd->cmd_status_drv != DCMD_INIT); 1177 1178 return cmd->cmd_status_drv; 1179} 1180 1181/** 1182 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd 1183 * @instance: Adapter soft state 1184 * @cmd_to_abort: Previously issued cmd to be aborted 1185 * @timeout: Timeout in seconds 1186 * 1187 * MFI firmware can abort previously issued AEN comamnd (automatic event 1188 * notification). The megasas_issue_blocked_abort_cmd() issues such abort 1189 * cmd and waits for return status. 1190 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1191 */ 1192static int 1193megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, 1194 struct megasas_cmd *cmd_to_abort, int timeout) 1195{ 1196 struct megasas_cmd *cmd; 1197 struct megasas_abort_frame *abort_fr; 1198 int ret = 0; 1199 u32 opcode; 1200 1201 cmd = megasas_get_cmd(instance); 1202 1203 if (!cmd) 1204 return -1; 1205 1206 abort_fr = &cmd->frame->abort; 1207 1208 /* 1209 * Prepare and issue the abort frame 1210 */ 1211 abort_fr->cmd = MFI_CMD_ABORT; 1212 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; 1213 abort_fr->flags = cpu_to_le16(0); 1214 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); 1215 abort_fr->abort_mfi_phys_addr_lo = 1216 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); 1217 abort_fr->abort_mfi_phys_addr_hi = 1218 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); 1219 1220 cmd->sync_cmd = 1; 1221 cmd->cmd_status_drv = DCMD_INIT; 1222 1223 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1224 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1225 __func__, __LINE__); 1226 return DCMD_INIT; 1227 } 1228 1229 instance->instancet->issue_dcmd(instance, cmd); 1230 1231 if (timeout) { 1232 ret = wait_event_timeout(instance->abort_cmd_wait_q, 1233 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1234 if (!ret) { 1235 opcode = cmd_to_abort->frame->dcmd.opcode; 1236 dev_err(&instance->pdev->dev, 1237 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n", 1238 opcode, __func__); 1239 return DCMD_TIMEOUT; 1240 } 1241 } else 1242 wait_event(instance->abort_cmd_wait_q, 1243 cmd->cmd_status_drv != DCMD_INIT); 1244 1245 cmd->sync_cmd = 0; 1246 1247 megasas_return_cmd(instance, cmd); 1248 return cmd->cmd_status_drv; 1249} 1250 1251/** 1252 * megasas_make_sgl32 - Prepares 32-bit SGL 1253 * @instance: Adapter soft state 1254 * @scp: SCSI command from the mid-layer 1255 * @mfi_sgl: SGL to be filled in 1256 * 1257 * If successful, this function returns the number of SG elements. Otherwise, 1258 * it returnes -1. 1259 */ 1260static int 1261megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, 1262 union megasas_sgl *mfi_sgl) 1263{ 1264 int i; 1265 int sge_count; 1266 struct scatterlist *os_sgl; 1267 1268 sge_count = scsi_dma_map(scp); 1269 BUG_ON(sge_count < 0); 1270 1271 if (sge_count) { 1272 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1273 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1274 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); 1275 } 1276 } 1277 return sge_count; 1278} 1279 1280/** 1281 * megasas_make_sgl64 - Prepares 64-bit SGL 1282 * @instance: Adapter soft state 1283 * @scp: SCSI command from the mid-layer 1284 * @mfi_sgl: SGL to be filled in 1285 * 1286 * If successful, this function returns the number of SG elements. Otherwise, 1287 * it returnes -1. 1288 */ 1289static int 1290megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, 1291 union megasas_sgl *mfi_sgl) 1292{ 1293 int i; 1294 int sge_count; 1295 struct scatterlist *os_sgl; 1296 1297 sge_count = scsi_dma_map(scp); 1298 BUG_ON(sge_count < 0); 1299 1300 if (sge_count) { 1301 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1302 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1303 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); 1304 } 1305 } 1306 return sge_count; 1307} 1308 1309/** 1310 * megasas_make_sgl_skinny - Prepares IEEE SGL 1311 * @instance: Adapter soft state 1312 * @scp: SCSI command from the mid-layer 1313 * @mfi_sgl: SGL to be filled in 1314 * 1315 * If successful, this function returns the number of SG elements. Otherwise, 1316 * it returnes -1. 1317 */ 1318static int 1319megasas_make_sgl_skinny(struct megasas_instance *instance, 1320 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) 1321{ 1322 int i; 1323 int sge_count; 1324 struct scatterlist *os_sgl; 1325 1326 sge_count = scsi_dma_map(scp); 1327 1328 if (sge_count) { 1329 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1330 mfi_sgl->sge_skinny[i].length = 1331 cpu_to_le32(sg_dma_len(os_sgl)); 1332 mfi_sgl->sge_skinny[i].phys_addr = 1333 cpu_to_le64(sg_dma_address(os_sgl)); 1334 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); 1335 } 1336 } 1337 return sge_count; 1338} 1339 1340 /** 1341 * megasas_get_frame_count - Computes the number of frames 1342 * @frame_type : type of frame- io or pthru frame 1343 * @sge_count : number of sg elements 1344 * 1345 * Returns the number of frames required for numnber of sge's (sge_count) 1346 */ 1347 1348static u32 megasas_get_frame_count(struct megasas_instance *instance, 1349 u8 sge_count, u8 frame_type) 1350{ 1351 int num_cnt; 1352 int sge_bytes; 1353 u32 sge_sz; 1354 u32 frame_count = 0; 1355 1356 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 1357 sizeof(struct megasas_sge32); 1358 1359 if (instance->flag_ieee) { 1360 sge_sz = sizeof(struct megasas_sge_skinny); 1361 } 1362 1363 /* 1364 * Main frame can contain 2 SGEs for 64-bit SGLs and 1365 * 3 SGEs for 32-bit SGLs for ldio & 1366 * 1 SGEs for 64-bit SGLs and 1367 * 2 SGEs for 32-bit SGLs for pthru frame 1368 */ 1369 if (unlikely(frame_type == PTHRU_FRAME)) { 1370 if (instance->flag_ieee == 1) { 1371 num_cnt = sge_count - 1; 1372 } else if (IS_DMA64) 1373 num_cnt = sge_count - 1; 1374 else 1375 num_cnt = sge_count - 2; 1376 } else { 1377 if (instance->flag_ieee == 1) { 1378 num_cnt = sge_count - 1; 1379 } else if (IS_DMA64) 1380 num_cnt = sge_count - 2; 1381 else 1382 num_cnt = sge_count - 3; 1383 } 1384 1385 if (num_cnt > 0) { 1386 sge_bytes = sge_sz * num_cnt; 1387 1388 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + 1389 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; 1390 } 1391 /* Main frame */ 1392 frame_count += 1; 1393 1394 if (frame_count > 7) 1395 frame_count = 8; 1396 return frame_count; 1397} 1398 1399/** 1400 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command 1401 * @instance: Adapter soft state 1402 * @scp: SCSI command 1403 * @cmd: Command to be prepared in 1404 * 1405 * This function prepares CDB commands. These are typcially pass-through 1406 * commands to the devices. 1407 */ 1408static int 1409megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, 1410 struct megasas_cmd *cmd) 1411{ 1412 u32 is_logical; 1413 u32 device_id; 1414 u16 flags = 0; 1415 struct megasas_pthru_frame *pthru; 1416 1417 is_logical = MEGASAS_IS_LOGICAL(scp->device); 1418 device_id = MEGASAS_DEV_INDEX(scp); 1419 pthru = (struct megasas_pthru_frame *)cmd->frame; 1420 1421 if (scp->sc_data_direction == DMA_TO_DEVICE) 1422 flags = MFI_FRAME_DIR_WRITE; 1423 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1424 flags = MFI_FRAME_DIR_READ; 1425 else if (scp->sc_data_direction == DMA_NONE) 1426 flags = MFI_FRAME_DIR_NONE; 1427 1428 if (instance->flag_ieee == 1) { 1429 flags |= MFI_FRAME_IEEE; 1430 } 1431 1432 /* 1433 * Prepare the DCDB frame 1434 */ 1435 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; 1436 pthru->cmd_status = 0x0; 1437 pthru->scsi_status = 0x0; 1438 pthru->target_id = device_id; 1439 pthru->lun = scp->device->lun; 1440 pthru->cdb_len = scp->cmd_len; 1441 pthru->timeout = 0; 1442 pthru->pad_0 = 0; 1443 pthru->flags = cpu_to_le16(flags); 1444 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); 1445 1446 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); 1447 1448 /* 1449 * If the command is for the tape device, set the 1450 * pthru timeout to the os layer timeout value. 1451 */ 1452 if (scp->device->type == TYPE_TAPE) { 1453 if (scsi_cmd_to_rq(scp)->timeout / HZ > 0xFFFF) 1454 pthru->timeout = cpu_to_le16(0xFFFF); 1455 else 1456 pthru->timeout = cpu_to_le16(scsi_cmd_to_rq(scp)->timeout / HZ); 1457 } 1458 1459 /* 1460 * Construct SGL 1461 */ 1462 if (instance->flag_ieee == 1) { 1463 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1464 pthru->sge_count = megasas_make_sgl_skinny(instance, scp, 1465 &pthru->sgl); 1466 } else if (IS_DMA64) { 1467 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1468 pthru->sge_count = megasas_make_sgl64(instance, scp, 1469 &pthru->sgl); 1470 } else 1471 pthru->sge_count = megasas_make_sgl32(instance, scp, 1472 &pthru->sgl); 1473 1474 if (pthru->sge_count > instance->max_num_sge) { 1475 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", 1476 pthru->sge_count); 1477 return 0; 1478 } 1479 1480 /* 1481 * Sense info specific 1482 */ 1483 pthru->sense_len = SCSI_SENSE_BUFFERSIZE; 1484 pthru->sense_buf_phys_addr_hi = 1485 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); 1486 pthru->sense_buf_phys_addr_lo = 1487 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); 1488 1489 /* 1490 * Compute the total number of frames this command consumes. FW uses 1491 * this number to pull sufficient number of frames from host memory. 1492 */ 1493 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, 1494 PTHRU_FRAME); 1495 1496 return cmd->frame_count; 1497} 1498 1499/** 1500 * megasas_build_ldio - Prepares IOs to logical devices 1501 * @instance: Adapter soft state 1502 * @scp: SCSI command 1503 * @cmd: Command to be prepared 1504 * 1505 * Frames (and accompanying SGLs) for regular SCSI IOs use this function. 1506 */ 1507static int 1508megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, 1509 struct megasas_cmd *cmd) 1510{ 1511 u32 device_id; 1512 u8 sc = scp->cmnd[0]; 1513 u16 flags = 0; 1514 struct megasas_io_frame *ldio; 1515 1516 device_id = MEGASAS_DEV_INDEX(scp); 1517 ldio = (struct megasas_io_frame *)cmd->frame; 1518 1519 if (scp->sc_data_direction == DMA_TO_DEVICE) 1520 flags = MFI_FRAME_DIR_WRITE; 1521 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1522 flags = MFI_FRAME_DIR_READ; 1523 1524 if (instance->flag_ieee == 1) { 1525 flags |= MFI_FRAME_IEEE; 1526 } 1527 1528 /* 1529 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds 1530 */ 1531 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; 1532 ldio->cmd_status = 0x0; 1533 ldio->scsi_status = 0x0; 1534 ldio->target_id = device_id; 1535 ldio->timeout = 0; 1536 ldio->reserved_0 = 0; 1537 ldio->pad_0 = 0; 1538 ldio->flags = cpu_to_le16(flags); 1539 ldio->start_lba_hi = 0; 1540 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; 1541 1542 /* 1543 * 6-byte READ(0x08) or WRITE(0x0A) cdb 1544 */ 1545 if (scp->cmd_len == 6) { 1546 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); 1547 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | 1548 ((u32) scp->cmnd[2] << 8) | 1549 (u32) scp->cmnd[3]); 1550 1551 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); 1552 } 1553 1554 /* 1555 * 10-byte READ(0x28) or WRITE(0x2A) cdb 1556 */ 1557 else if (scp->cmd_len == 10) { 1558 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | 1559 ((u32) scp->cmnd[7] << 8)); 1560 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1561 ((u32) scp->cmnd[3] << 16) | 1562 ((u32) scp->cmnd[4] << 8) | 1563 (u32) scp->cmnd[5]); 1564 } 1565 1566 /* 1567 * 12-byte READ(0xA8) or WRITE(0xAA) cdb 1568 */ 1569 else if (scp->cmd_len == 12) { 1570 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1571 ((u32) scp->cmnd[7] << 16) | 1572 ((u32) scp->cmnd[8] << 8) | 1573 (u32) scp->cmnd[9]); 1574 1575 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1576 ((u32) scp->cmnd[3] << 16) | 1577 ((u32) scp->cmnd[4] << 8) | 1578 (u32) scp->cmnd[5]); 1579 } 1580 1581 /* 1582 * 16-byte READ(0x88) or WRITE(0x8A) cdb 1583 */ 1584 else if (scp->cmd_len == 16) { 1585 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | 1586 ((u32) scp->cmnd[11] << 16) | 1587 ((u32) scp->cmnd[12] << 8) | 1588 (u32) scp->cmnd[13]); 1589 1590 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1591 ((u32) scp->cmnd[7] << 16) | 1592 ((u32) scp->cmnd[8] << 8) | 1593 (u32) scp->cmnd[9]); 1594 1595 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1596 ((u32) scp->cmnd[3] << 16) | 1597 ((u32) scp->cmnd[4] << 8) | 1598 (u32) scp->cmnd[5]); 1599 1600 } 1601 1602 /* 1603 * Construct SGL 1604 */ 1605 if (instance->flag_ieee) { 1606 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1607 ldio->sge_count = megasas_make_sgl_skinny(instance, scp, 1608 &ldio->sgl); 1609 } else if (IS_DMA64) { 1610 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1611 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); 1612 } else 1613 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); 1614 1615 if (ldio->sge_count > instance->max_num_sge) { 1616 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", 1617 ldio->sge_count); 1618 return 0; 1619 } 1620 1621 /* 1622 * Sense info specific 1623 */ 1624 ldio->sense_len = SCSI_SENSE_BUFFERSIZE; 1625 ldio->sense_buf_phys_addr_hi = 0; 1626 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); 1627 1628 /* 1629 * Compute the total number of frames this command consumes. FW uses 1630 * this number to pull sufficient number of frames from host memory. 1631 */ 1632 cmd->frame_count = megasas_get_frame_count(instance, 1633 ldio->sge_count, IO_FRAME); 1634 1635 return cmd->frame_count; 1636} 1637 1638/** 1639 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD 1640 * and whether it's RW or non RW 1641 * @cmd: SCSI command 1642 * 1643 */ 1644inline int megasas_cmd_type(struct scsi_cmnd *cmd) 1645{ 1646 int ret; 1647 1648 switch (cmd->cmnd[0]) { 1649 case READ_10: 1650 case WRITE_10: 1651 case READ_12: 1652 case WRITE_12: 1653 case READ_6: 1654 case WRITE_6: 1655 case READ_16: 1656 case WRITE_16: 1657 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1658 READ_WRITE_LDIO : READ_WRITE_SYSPDIO; 1659 break; 1660 default: 1661 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1662 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; 1663 } 1664 return ret; 1665} 1666 1667 /** 1668 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds 1669 * in FW 1670 * @instance: Adapter soft state 1671 */ 1672static inline void 1673megasas_dump_pending_frames(struct megasas_instance *instance) 1674{ 1675 struct megasas_cmd *cmd; 1676 int i,n; 1677 union megasas_sgl *mfi_sgl; 1678 struct megasas_io_frame *ldio; 1679 struct megasas_pthru_frame *pthru; 1680 u32 sgcount; 1681 u16 max_cmd = instance->max_fw_cmds; 1682 1683 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); 1684 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); 1685 if (IS_DMA64) 1686 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); 1687 else 1688 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); 1689 1690 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); 1691 for (i = 0; i < max_cmd; i++) { 1692 cmd = instance->cmd_list[i]; 1693 if (!cmd->scmd) 1694 continue; 1695 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); 1696 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { 1697 ldio = (struct megasas_io_frame *)cmd->frame; 1698 mfi_sgl = &ldio->sgl; 1699 sgcount = ldio->sge_count; 1700 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," 1701 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1702 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, 1703 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), 1704 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); 1705 } else { 1706 pthru = (struct megasas_pthru_frame *) cmd->frame; 1707 mfi_sgl = &pthru->sgl; 1708 sgcount = pthru->sge_count; 1709 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " 1710 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1711 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, 1712 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), 1713 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); 1714 } 1715 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { 1716 for (n = 0; n < sgcount; n++) { 1717 if (IS_DMA64) 1718 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", 1719 le32_to_cpu(mfi_sgl->sge64[n].length), 1720 le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); 1721 else 1722 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", 1723 le32_to_cpu(mfi_sgl->sge32[n].length), 1724 le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); 1725 } 1726 } 1727 } /*for max_cmd*/ 1728 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); 1729 for (i = 0; i < max_cmd; i++) { 1730 1731 cmd = instance->cmd_list[i]; 1732 1733 if (cmd->sync_cmd == 1) 1734 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); 1735 } 1736 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); 1737} 1738 1739u32 1740megasas_build_and_issue_cmd(struct megasas_instance *instance, 1741 struct scsi_cmnd *scmd) 1742{ 1743 struct megasas_cmd *cmd; 1744 u32 frame_count; 1745 1746 cmd = megasas_get_cmd(instance); 1747 if (!cmd) 1748 return SCSI_MLQUEUE_HOST_BUSY; 1749 1750 /* 1751 * Logical drive command 1752 */ 1753 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) 1754 frame_count = megasas_build_ldio(instance, scmd, cmd); 1755 else 1756 frame_count = megasas_build_dcdb(instance, scmd, cmd); 1757 1758 if (!frame_count) 1759 goto out_return_cmd; 1760 1761 cmd->scmd = scmd; 1762 megasas_priv(scmd)->cmd_priv = cmd; 1763 1764 /* 1765 * Issue the command to the FW 1766 */ 1767 atomic_inc(&instance->fw_outstanding); 1768 1769 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, 1770 cmd->frame_count-1, instance->reg_set); 1771 1772 return 0; 1773out_return_cmd: 1774 megasas_return_cmd(instance, cmd); 1775 return SCSI_MLQUEUE_HOST_BUSY; 1776} 1777 1778 1779/** 1780 * megasas_queue_command - Queue entry point 1781 * @shost: adapter SCSI host 1782 * @scmd: SCSI command to be queued 1783 */ 1784static int 1785megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 1786{ 1787 struct megasas_instance *instance; 1788 struct MR_PRIV_DEVICE *mr_device_priv_data; 1789 u32 ld_tgt_id; 1790 1791 instance = (struct megasas_instance *) 1792 scmd->device->host->hostdata; 1793 1794 if (instance->unload == 1) { 1795 scmd->result = DID_NO_CONNECT << 16; 1796 scsi_done(scmd); 1797 return 0; 1798 } 1799 1800 if (instance->issuepend_done == 0) 1801 return SCSI_MLQUEUE_HOST_BUSY; 1802 1803 1804 /* Check for an mpio path and adjust behavior */ 1805 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 1806 if (megasas_check_mpio_paths(instance, scmd) == 1807 (DID_REQUEUE << 16)) { 1808 return SCSI_MLQUEUE_HOST_BUSY; 1809 } else { 1810 scmd->result = DID_NO_CONNECT << 16; 1811 scsi_done(scmd); 1812 return 0; 1813 } 1814 } 1815 1816 mr_device_priv_data = scmd->device->hostdata; 1817 if (!mr_device_priv_data || 1818 (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)) { 1819 scmd->result = DID_NO_CONNECT << 16; 1820 scsi_done(scmd); 1821 return 0; 1822 } 1823 1824 if (MEGASAS_IS_LOGICAL(scmd->device)) { 1825 ld_tgt_id = MEGASAS_TARGET_ID(scmd->device); 1826 if (instance->ld_tgtid_status[ld_tgt_id] == LD_TARGET_ID_DELETED) { 1827 scmd->result = DID_NO_CONNECT << 16; 1828 scsi_done(scmd); 1829 return 0; 1830 } 1831 } 1832 1833 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1834 return SCSI_MLQUEUE_HOST_BUSY; 1835 1836 if (mr_device_priv_data->tm_busy) 1837 return SCSI_MLQUEUE_DEVICE_BUSY; 1838 1839 1840 scmd->result = 0; 1841 1842 if (MEGASAS_IS_LOGICAL(scmd->device) && 1843 (scmd->device->id >= instance->fw_supported_vd_count || 1844 scmd->device->lun)) { 1845 scmd->result = DID_BAD_TARGET << 16; 1846 goto out_done; 1847 } 1848 1849 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && 1850 MEGASAS_IS_LOGICAL(scmd->device) && 1851 (!instance->fw_sync_cache_support)) { 1852 scmd->result = DID_OK << 16; 1853 goto out_done; 1854 } 1855 1856 return instance->instancet->build_and_issue_cmd(instance, scmd); 1857 1858 out_done: 1859 scsi_done(scmd); 1860 return 0; 1861} 1862 1863static struct megasas_instance *megasas_lookup_instance(u16 host_no) 1864{ 1865 int i; 1866 1867 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 1868 1869 if ((megasas_mgmt_info.instance[i]) && 1870 (megasas_mgmt_info.instance[i]->host->host_no == host_no)) 1871 return megasas_mgmt_info.instance[i]; 1872 } 1873 1874 return NULL; 1875} 1876 1877/* 1878* megasas_set_dynamic_target_properties - 1879* Device property set by driver may not be static and it is required to be 1880* updated after OCR 1881* 1882* set tm_capable. 1883* set dma alignment (only for eedp protection enable vd). 1884* 1885* @sdev: OS provided scsi device 1886* 1887* Returns void 1888*/ 1889void megasas_set_dynamic_target_properties(struct scsi_device *sdev, 1890 struct queue_limits *lim, bool is_target_prop) 1891{ 1892 u16 pd_index = 0, ld; 1893 u32 device_id; 1894 struct megasas_instance *instance; 1895 struct fusion_context *fusion; 1896 struct MR_PRIV_DEVICE *mr_device_priv_data; 1897 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1898 struct MR_LD_RAID *raid; 1899 struct MR_DRV_RAID_MAP_ALL *local_map_ptr; 1900 1901 instance = megasas_lookup_instance(sdev->host->host_no); 1902 fusion = instance->ctrl_context; 1903 mr_device_priv_data = sdev->hostdata; 1904 1905 if (!fusion || !mr_device_priv_data) 1906 return; 1907 1908 if (MEGASAS_IS_LOGICAL(sdev)) { 1909 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) 1910 + sdev->id; 1911 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; 1912 ld = MR_TargetIdToLdGet(device_id, local_map_ptr); 1913 if (ld >= instance->fw_supported_vd_count) 1914 return; 1915 raid = MR_LdRaidGet(ld, local_map_ptr); 1916 1917 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) { 1918 if (lim) 1919 lim->dma_alignment = 0x7; 1920 } 1921 1922 mr_device_priv_data->is_tm_capable = 1923 raid->capability.tmCapable; 1924 1925 if (!raid->flags.isEPD) 1926 sdev->no_write_same = 1; 1927 1928 } else if (instance->use_seqnum_jbod_fp) { 1929 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1930 sdev->id; 1931 pd_sync = (void *)fusion->pd_seq_sync 1932 [(instance->pd_seq_map_id - 1) & 1]; 1933 mr_device_priv_data->is_tm_capable = 1934 pd_sync->seq[pd_index].capability.tmCapable; 1935 } 1936 1937 if (is_target_prop && instance->tgt_prop->reset_tmo) { 1938 /* 1939 * If FW provides a target reset timeout value, driver will use 1940 * it. If not set, fallback to default values. 1941 */ 1942 mr_device_priv_data->target_reset_tmo = 1943 min_t(u8, instance->max_reset_tmo, 1944 instance->tgt_prop->reset_tmo); 1945 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo; 1946 } else { 1947 mr_device_priv_data->target_reset_tmo = 1948 MEGASAS_DEFAULT_TM_TIMEOUT; 1949 mr_device_priv_data->task_abort_tmo = 1950 MEGASAS_DEFAULT_TM_TIMEOUT; 1951 } 1952} 1953 1954/* 1955 * megasas_set_nvme_device_properties - 1956 * set nomerges=2 1957 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). 1958 * set maximum io transfer = MDTS of NVME device provided by MR firmware. 1959 * 1960 * MR firmware provides value in KB. Caller of this function converts 1961 * kb into bytes. 1962 * 1963 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, 1964 * MR firmware provides value 128 as (32 * 4K) = 128K. 1965 * 1966 * @sdev: scsi device 1967 * @max_io_size: maximum io transfer size 1968 * 1969 */ 1970static inline void 1971megasas_set_nvme_device_properties(struct scsi_device *sdev, 1972 struct queue_limits *lim, u32 max_io_size) 1973{ 1974 struct megasas_instance *instance; 1975 u32 mr_nvme_pg_size; 1976 1977 instance = (struct megasas_instance *)sdev->host->hostdata; 1978 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, 1979 MR_DEFAULT_NVME_PAGE_SIZE); 1980 1981 lim->max_hw_sectors = max_io_size / 512; 1982 lim->virt_boundary_mask = 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 */ 1993static 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 */ 2043static void megasas_set_static_target_properties(struct scsi_device *sdev, 2044 struct queue_limits *lim, 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, lim, 2064 max_io_size_kb << 10); 2065 2066 megasas_set_fw_assisted_qd(sdev, is_target_prop); 2067} 2068 2069 2070static int megasas_sdev_configure(struct scsi_device *sdev, 2071 struct queue_limits *lim) 2072{ 2073 u16 pd_index = 0; 2074 struct megasas_instance *instance; 2075 int ret_target_prop = DCMD_FAILED; 2076 bool is_target_prop = false; 2077 2078 instance = megasas_lookup_instance(sdev->host->host_no); 2079 if (instance->pd_list_not_supported) { 2080 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { 2081 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2082 sdev->id; 2083 if (instance->pd_list[pd_index].driveState != 2084 MR_PD_STATE_SYSTEM) 2085 return -ENXIO; 2086 } 2087 } 2088 2089 mutex_lock(&instance->reset_mutex); 2090 /* Send DCMD to Firmware and cache the information */ 2091 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) 2092 megasas_get_pd_info(instance, sdev); 2093 2094 /* Some ventura firmware may not have instance->nvme_page_size set. 2095 * Do not send MR_DCMD_DRV_GET_TARGET_PROP 2096 */ 2097 if ((instance->tgt_prop) && (instance->nvme_page_size)) 2098 ret_target_prop = megasas_get_target_prop(instance, sdev); 2099 2100 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 2101 megasas_set_static_target_properties(sdev, lim, is_target_prop); 2102 2103 /* This sdev property may change post OCR */ 2104 megasas_set_dynamic_target_properties(sdev, lim, is_target_prop); 2105 2106 if (!MEGASAS_IS_LOGICAL(sdev)) 2107 sdev->no_vpd_size = 1; 2108 2109 mutex_unlock(&instance->reset_mutex); 2110 2111 return 0; 2112} 2113 2114static int megasas_sdev_init(struct scsi_device *sdev) 2115{ 2116 u16 pd_index = 0, ld_tgt_id; 2117 struct megasas_instance *instance ; 2118 struct MR_PRIV_DEVICE *mr_device_priv_data; 2119 2120 instance = megasas_lookup_instance(sdev->host->host_no); 2121 if (!MEGASAS_IS_LOGICAL(sdev)) { 2122 /* 2123 * Open the OS scan to the SYSTEM PD 2124 */ 2125 pd_index = 2126 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2127 sdev->id; 2128 if ((instance->pd_list_not_supported || 2129 instance->pd_list[pd_index].driveState == 2130 MR_PD_STATE_SYSTEM)) { 2131 goto scan_target; 2132 } 2133 return -ENXIO; 2134 } else if (!MEGASAS_IS_LUN_VALID(sdev)) { 2135 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__); 2136 return -ENXIO; 2137 } 2138 2139scan_target: 2140 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), 2141 GFP_KERNEL); 2142 if (!mr_device_priv_data) 2143 return -ENOMEM; 2144 2145 if (MEGASAS_IS_LOGICAL(sdev)) { 2146 ld_tgt_id = MEGASAS_TARGET_ID(sdev); 2147 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_ACTIVE; 2148 if (megasas_dbg_lvl & LD_PD_DEBUG) 2149 sdev_printk(KERN_INFO, sdev, "LD target ID %d created.\n", ld_tgt_id); 2150 } 2151 2152 sdev->hostdata = mr_device_priv_data; 2153 2154 atomic_set(&mr_device_priv_data->r1_ldio_hint, 2155 instance->r1_ldio_hint_default); 2156 return 0; 2157} 2158 2159static void megasas_sdev_destroy(struct scsi_device *sdev) 2160{ 2161 u16 ld_tgt_id; 2162 struct megasas_instance *instance; 2163 2164 instance = megasas_lookup_instance(sdev->host->host_no); 2165 2166 if (MEGASAS_IS_LOGICAL(sdev)) { 2167 if (!MEGASAS_IS_LUN_VALID(sdev)) { 2168 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__); 2169 return; 2170 } 2171 ld_tgt_id = MEGASAS_TARGET_ID(sdev); 2172 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_DELETED; 2173 if (megasas_dbg_lvl & LD_PD_DEBUG) 2174 sdev_printk(KERN_INFO, sdev, 2175 "LD target ID %d removed from OS stack\n", ld_tgt_id); 2176 } 2177 2178 kfree(sdev->hostdata); 2179 sdev->hostdata = NULL; 2180} 2181 2182/* 2183* megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a 2184* kill adapter 2185* @instance: Adapter soft state 2186* 2187*/ 2188static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) 2189{ 2190 int i; 2191 struct megasas_cmd *cmd_mfi; 2192 struct megasas_cmd_fusion *cmd_fusion; 2193 struct fusion_context *fusion = instance->ctrl_context; 2194 2195 /* Find all outstanding ioctls */ 2196 if (fusion) { 2197 for (i = 0; i < instance->max_fw_cmds; i++) { 2198 cmd_fusion = fusion->cmd_list[i]; 2199 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { 2200 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; 2201 if (cmd_mfi->sync_cmd && 2202 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { 2203 cmd_mfi->frame->hdr.cmd_status = 2204 MFI_STAT_WRONG_STATE; 2205 megasas_complete_cmd(instance, 2206 cmd_mfi, DID_OK); 2207 } 2208 } 2209 } 2210 } else { 2211 for (i = 0; i < instance->max_fw_cmds; i++) { 2212 cmd_mfi = instance->cmd_list[i]; 2213 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != 2214 MFI_CMD_ABORT) 2215 megasas_complete_cmd(instance, cmd_mfi, DID_OK); 2216 } 2217 } 2218} 2219 2220 2221void megaraid_sas_kill_hba(struct megasas_instance *instance) 2222{ 2223 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2224 dev_warn(&instance->pdev->dev, 2225 "Adapter already dead, skipping kill HBA\n"); 2226 return; 2227 } 2228 2229 /* Set critical error to block I/O & ioctls in case caller didn't */ 2230 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2231 /* Wait 1 second to ensure IO or ioctls in build have posted */ 2232 msleep(1000); 2233 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 2234 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 2235 (instance->adapter_type != MFI_SERIES)) { 2236 if (!instance->requestorId) { 2237 writel(MFI_STOP_ADP, &instance->reg_set->doorbell); 2238 /* Flush */ 2239 readl(&instance->reg_set->doorbell); 2240 } 2241 if (instance->requestorId && instance->peerIsPresent) 2242 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 2243 } else { 2244 writel(MFI_STOP_ADP, 2245 &instance->reg_set->inbound_doorbell); 2246 } 2247 /* Complete outstanding ioctls when adapter is killed */ 2248 megasas_complete_outstanding_ioctls(instance); 2249} 2250 2251 /** 2252 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be 2253 * restored to max value 2254 * @instance: Adapter soft state 2255 * 2256 */ 2257void 2258megasas_check_and_restore_queue_depth(struct megasas_instance *instance) 2259{ 2260 unsigned long flags; 2261 2262 if (instance->flag & MEGASAS_FW_BUSY 2263 && time_after(jiffies, instance->last_time + 5 * HZ) 2264 && atomic_read(&instance->fw_outstanding) < 2265 instance->throttlequeuedepth + 1) { 2266 2267 spin_lock_irqsave(instance->host->host_lock, flags); 2268 instance->flag &= ~MEGASAS_FW_BUSY; 2269 2270 instance->host->can_queue = instance->cur_can_queue; 2271 spin_unlock_irqrestore(instance->host->host_lock, flags); 2272 } 2273} 2274 2275/** 2276 * megasas_complete_cmd_dpc - Returns FW's controller structure 2277 * @instance_addr: Address of adapter soft state 2278 * 2279 * Tasklet to complete cmds 2280 */ 2281static void megasas_complete_cmd_dpc(unsigned long instance_addr) 2282{ 2283 u32 producer; 2284 u32 consumer; 2285 u32 context; 2286 struct megasas_cmd *cmd; 2287 struct megasas_instance *instance = 2288 (struct megasas_instance *)instance_addr; 2289 unsigned long flags; 2290 2291 /* If we have already declared adapter dead, donot complete cmds */ 2292 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 2293 return; 2294 2295 spin_lock_irqsave(&instance->completion_lock, flags); 2296 2297 producer = le32_to_cpu(*instance->producer); 2298 consumer = le32_to_cpu(*instance->consumer); 2299 2300 while (consumer != producer) { 2301 context = le32_to_cpu(instance->reply_queue[consumer]); 2302 if (context >= instance->max_fw_cmds) { 2303 dev_err(&instance->pdev->dev, "Unexpected context value %x\n", 2304 context); 2305 BUG(); 2306 } 2307 2308 cmd = instance->cmd_list[context]; 2309 2310 megasas_complete_cmd(instance, cmd, DID_OK); 2311 2312 consumer++; 2313 if (consumer == (instance->max_fw_cmds + 1)) { 2314 consumer = 0; 2315 } 2316 } 2317 2318 *instance->consumer = cpu_to_le32(producer); 2319 2320 spin_unlock_irqrestore(&instance->completion_lock, flags); 2321 2322 /* 2323 * Check if we can restore can_queue 2324 */ 2325 megasas_check_and_restore_queue_depth(instance); 2326} 2327 2328static void megasas_sriov_heartbeat_handler(struct timer_list *t); 2329 2330/** 2331 * megasas_start_timer - Initializes sriov heartbeat timer object 2332 * @instance: Adapter soft state 2333 * 2334 */ 2335void megasas_start_timer(struct megasas_instance *instance) 2336{ 2337 struct timer_list *timer = &instance->sriov_heartbeat_timer; 2338 2339 timer_setup(timer, megasas_sriov_heartbeat_handler, 0); 2340 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF; 2341 add_timer(timer); 2342} 2343 2344static void 2345megasas_internal_reset_defer_cmds(struct megasas_instance *instance); 2346 2347static void 2348process_fw_state_change_wq(struct work_struct *work); 2349 2350static void megasas_do_ocr(struct megasas_instance *instance) 2351{ 2352 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 2353 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 2354 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 2355 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 2356 } 2357 instance->instancet->disable_intr(instance); 2358 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 2359 instance->issuepend_done = 0; 2360 2361 atomic_set(&instance->fw_outstanding, 0); 2362 megasas_internal_reset_defer_cmds(instance); 2363 process_fw_state_change_wq(&instance->work_init); 2364} 2365 2366static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, 2367 int initial) 2368{ 2369 struct megasas_cmd *cmd; 2370 struct megasas_dcmd_frame *dcmd; 2371 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; 2372 dma_addr_t new_affiliation_111_h; 2373 int ld, retval = 0; 2374 u8 thisVf; 2375 2376 cmd = megasas_get_cmd(instance); 2377 2378 if (!cmd) { 2379 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" 2380 "Failed to get cmd for scsi%d\n", 2381 instance->host->host_no); 2382 return -ENOMEM; 2383 } 2384 2385 dcmd = &cmd->frame->dcmd; 2386 2387 if (!instance->vf_affiliation_111) { 2388 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2389 "affiliation for scsi%d\n", instance->host->host_no); 2390 megasas_return_cmd(instance, cmd); 2391 return -ENOMEM; 2392 } 2393 2394 if (initial) 2395 memset(instance->vf_affiliation_111, 0, 2396 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2397 else { 2398 new_affiliation_111 = 2399 dma_alloc_coherent(&instance->pdev->dev, 2400 sizeof(struct MR_LD_VF_AFFILIATION_111), 2401 &new_affiliation_111_h, GFP_KERNEL); 2402 if (!new_affiliation_111) { 2403 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2404 "memory for new affiliation for scsi%d\n", 2405 instance->host->host_no); 2406 megasas_return_cmd(instance, cmd); 2407 return -ENOMEM; 2408 } 2409 } 2410 2411 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2412 2413 dcmd->cmd = MFI_CMD_DCMD; 2414 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2415 dcmd->sge_count = 1; 2416 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2417 dcmd->timeout = 0; 2418 dcmd->pad_0 = 0; 2419 dcmd->data_xfer_len = 2420 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); 2421 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); 2422 2423 if (initial) 2424 dcmd->sgl.sge32[0].phys_addr = 2425 cpu_to_le32(instance->vf_affiliation_111_h); 2426 else 2427 dcmd->sgl.sge32[0].phys_addr = 2428 cpu_to_le32(new_affiliation_111_h); 2429 2430 dcmd->sgl.sge32[0].length = cpu_to_le32( 2431 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2432 2433 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2434 "scsi%d\n", instance->host->host_no); 2435 2436 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2437 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2438 " failed with status 0x%x for scsi%d\n", 2439 dcmd->cmd_status, instance->host->host_no); 2440 retval = 1; /* Do a scan if we couldn't get affiliation */ 2441 goto out; 2442 } 2443 2444 if (!initial) { 2445 thisVf = new_affiliation_111->thisVf; 2446 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) 2447 if (instance->vf_affiliation_111->map[ld].policy[thisVf] != 2448 new_affiliation_111->map[ld].policy[thisVf]) { 2449 dev_warn(&instance->pdev->dev, "SR-IOV: " 2450 "Got new LD/VF affiliation for scsi%d\n", 2451 instance->host->host_no); 2452 memcpy(instance->vf_affiliation_111, 2453 new_affiliation_111, 2454 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2455 retval = 1; 2456 goto out; 2457 } 2458 } 2459out: 2460 if (new_affiliation_111) { 2461 dma_free_coherent(&instance->pdev->dev, 2462 sizeof(struct MR_LD_VF_AFFILIATION_111), 2463 new_affiliation_111, 2464 new_affiliation_111_h); 2465 } 2466 2467 megasas_return_cmd(instance, cmd); 2468 2469 return retval; 2470} 2471 2472static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, 2473 int initial) 2474{ 2475 struct megasas_cmd *cmd; 2476 struct megasas_dcmd_frame *dcmd; 2477 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; 2478 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; 2479 dma_addr_t new_affiliation_h; 2480 int i, j, retval = 0, found = 0, doscan = 0; 2481 u8 thisVf; 2482 2483 cmd = megasas_get_cmd(instance); 2484 2485 if (!cmd) { 2486 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " 2487 "Failed to get cmd for scsi%d\n", 2488 instance->host->host_no); 2489 return -ENOMEM; 2490 } 2491 2492 dcmd = &cmd->frame->dcmd; 2493 2494 if (!instance->vf_affiliation) { 2495 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2496 "affiliation for scsi%d\n", instance->host->host_no); 2497 megasas_return_cmd(instance, cmd); 2498 return -ENOMEM; 2499 } 2500 2501 if (initial) 2502 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2503 sizeof(struct MR_LD_VF_AFFILIATION)); 2504 else { 2505 new_affiliation = 2506 dma_alloc_coherent(&instance->pdev->dev, 2507 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), 2508 &new_affiliation_h, GFP_KERNEL); 2509 if (!new_affiliation) { 2510 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2511 "memory for new affiliation for scsi%d\n", 2512 instance->host->host_no); 2513 megasas_return_cmd(instance, cmd); 2514 return -ENOMEM; 2515 } 2516 } 2517 2518 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2519 2520 dcmd->cmd = MFI_CMD_DCMD; 2521 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2522 dcmd->sge_count = 1; 2523 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2524 dcmd->timeout = 0; 2525 dcmd->pad_0 = 0; 2526 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2527 sizeof(struct MR_LD_VF_AFFILIATION)); 2528 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); 2529 2530 if (initial) 2531 dcmd->sgl.sge32[0].phys_addr = 2532 cpu_to_le32(instance->vf_affiliation_h); 2533 else 2534 dcmd->sgl.sge32[0].phys_addr = 2535 cpu_to_le32(new_affiliation_h); 2536 2537 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2538 sizeof(struct MR_LD_VF_AFFILIATION)); 2539 2540 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2541 "scsi%d\n", instance->host->host_no); 2542 2543 2544 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2545 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2546 " failed with status 0x%x for scsi%d\n", 2547 dcmd->cmd_status, instance->host->host_no); 2548 retval = 1; /* Do a scan if we couldn't get affiliation */ 2549 goto out; 2550 } 2551 2552 if (!initial) { 2553 if (!new_affiliation->ldCount) { 2554 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2555 "affiliation for passive path for scsi%d\n", 2556 instance->host->host_no); 2557 retval = 1; 2558 goto out; 2559 } 2560 newmap = new_affiliation->map; 2561 savedmap = instance->vf_affiliation->map; 2562 thisVf = new_affiliation->thisVf; 2563 for (i = 0 ; i < new_affiliation->ldCount; i++) { 2564 found = 0; 2565 for (j = 0; j < instance->vf_affiliation->ldCount; 2566 j++) { 2567 if (newmap->ref.targetId == 2568 savedmap->ref.targetId) { 2569 found = 1; 2570 if (newmap->policy[thisVf] != 2571 savedmap->policy[thisVf]) { 2572 doscan = 1; 2573 goto out; 2574 } 2575 } 2576 savedmap = (struct MR_LD_VF_MAP *) 2577 ((unsigned char *)savedmap + 2578 savedmap->size); 2579 } 2580 if (!found && newmap->policy[thisVf] != 2581 MR_LD_ACCESS_HIDDEN) { 2582 doscan = 1; 2583 goto out; 2584 } 2585 newmap = (struct MR_LD_VF_MAP *) 2586 ((unsigned char *)newmap + newmap->size); 2587 } 2588 2589 newmap = new_affiliation->map; 2590 savedmap = instance->vf_affiliation->map; 2591 2592 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { 2593 found = 0; 2594 for (j = 0 ; j < new_affiliation->ldCount; j++) { 2595 if (savedmap->ref.targetId == 2596 newmap->ref.targetId) { 2597 found = 1; 2598 if (savedmap->policy[thisVf] != 2599 newmap->policy[thisVf]) { 2600 doscan = 1; 2601 goto out; 2602 } 2603 } 2604 newmap = (struct MR_LD_VF_MAP *) 2605 ((unsigned char *)newmap + 2606 newmap->size); 2607 } 2608 if (!found && savedmap->policy[thisVf] != 2609 MR_LD_ACCESS_HIDDEN) { 2610 doscan = 1; 2611 goto out; 2612 } 2613 savedmap = (struct MR_LD_VF_MAP *) 2614 ((unsigned char *)savedmap + 2615 savedmap->size); 2616 } 2617 } 2618out: 2619 if (doscan) { 2620 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2621 "affiliation for scsi%d\n", instance->host->host_no); 2622 memcpy(instance->vf_affiliation, new_affiliation, 2623 new_affiliation->size); 2624 retval = 1; 2625 } 2626 2627 if (new_affiliation) 2628 dma_free_coherent(&instance->pdev->dev, 2629 (MAX_LOGICAL_DRIVES + 1) * 2630 sizeof(struct MR_LD_VF_AFFILIATION), 2631 new_affiliation, new_affiliation_h); 2632 megasas_return_cmd(instance, cmd); 2633 2634 return retval; 2635} 2636 2637/* This function will get the current SR-IOV LD/VF affiliation */ 2638static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 2639 int initial) 2640{ 2641 int retval; 2642 2643 if (instance->PlasmaFW111) 2644 retval = megasas_get_ld_vf_affiliation_111(instance, initial); 2645 else 2646 retval = megasas_get_ld_vf_affiliation_12(instance, initial); 2647 return retval; 2648} 2649 2650/* This function will tell FW to start the SR-IOV heartbeat */ 2651int megasas_sriov_start_heartbeat(struct megasas_instance *instance, 2652 int initial) 2653{ 2654 struct megasas_cmd *cmd; 2655 struct megasas_dcmd_frame *dcmd; 2656 int retval = 0; 2657 2658 cmd = megasas_get_cmd(instance); 2659 2660 if (!cmd) { 2661 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " 2662 "Failed to get cmd for scsi%d\n", 2663 instance->host->host_no); 2664 return -ENOMEM; 2665 } 2666 2667 dcmd = &cmd->frame->dcmd; 2668 2669 if (initial) { 2670 instance->hb_host_mem = 2671 dma_alloc_coherent(&instance->pdev->dev, 2672 sizeof(struct MR_CTRL_HB_HOST_MEM), 2673 &instance->hb_host_mem_h, 2674 GFP_KERNEL); 2675 if (!instance->hb_host_mem) { 2676 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" 2677 " memory for heartbeat host memory for scsi%d\n", 2678 instance->host->host_no); 2679 retval = -ENOMEM; 2680 goto out; 2681 } 2682 } 2683 2684 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2685 2686 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2687 dcmd->cmd = MFI_CMD_DCMD; 2688 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2689 dcmd->sge_count = 1; 2690 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2691 dcmd->timeout = 0; 2692 dcmd->pad_0 = 0; 2693 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2694 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); 2695 2696 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h, 2697 sizeof(struct MR_CTRL_HB_HOST_MEM)); 2698 2699 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", 2700 instance->host->host_no); 2701 2702 if ((instance->adapter_type != MFI_SERIES) && 2703 !instance->mask_interrupts) 2704 retval = megasas_issue_blocked_cmd(instance, cmd, 2705 MEGASAS_ROUTINE_WAIT_TIME_VF); 2706 else 2707 retval = megasas_issue_polled(instance, cmd); 2708 2709 if (retval) { 2710 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" 2711 "_MEM_ALLOC DCMD %s for scsi%d\n", 2712 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? 2713 "timed out" : "failed", instance->host->host_no); 2714 retval = 1; 2715 } 2716 2717out: 2718 megasas_return_cmd(instance, cmd); 2719 2720 return retval; 2721} 2722 2723/* Handler for SR-IOV heartbeat */ 2724static void megasas_sriov_heartbeat_handler(struct timer_list *t) 2725{ 2726 struct megasas_instance *instance = 2727 timer_container_of(instance, t, sriov_heartbeat_timer); 2728 2729 if (instance->hb_host_mem->HB.fwCounter != 2730 instance->hb_host_mem->HB.driverCounter) { 2731 instance->hb_host_mem->HB.driverCounter = 2732 instance->hb_host_mem->HB.fwCounter; 2733 mod_timer(&instance->sriov_heartbeat_timer, 2734 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 2735 } else { 2736 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " 2737 "completed for scsi%d\n", instance->host->host_no); 2738 schedule_work(&instance->work_init); 2739 } 2740} 2741 2742/** 2743 * megasas_wait_for_outstanding - Wait for all outstanding cmds 2744 * @instance: Adapter soft state 2745 * 2746 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to 2747 * complete all its outstanding commands. Returns error if one or more IOs 2748 * are pending after this time period. It also marks the controller dead. 2749 */ 2750static int megasas_wait_for_outstanding(struct megasas_instance *instance) 2751{ 2752 int i, sl, outstanding; 2753 u32 reset_index; 2754 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 2755 unsigned long flags; 2756 struct list_head clist_local; 2757 struct megasas_cmd *reset_cmd; 2758 u32 fw_state; 2759 2760 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2761 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", 2762 __func__, __LINE__); 2763 return FAILED; 2764 } 2765 2766 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2767 2768 INIT_LIST_HEAD(&clist_local); 2769 spin_lock_irqsave(&instance->hba_lock, flags); 2770 list_splice_init(&instance->internal_reset_pending_q, 2771 &clist_local); 2772 spin_unlock_irqrestore(&instance->hba_lock, flags); 2773 2774 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); 2775 for (i = 0; i < wait_time; i++) { 2776 msleep(1000); 2777 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 2778 break; 2779 } 2780 2781 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2782 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); 2783 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2784 return FAILED; 2785 } 2786 2787 reset_index = 0; 2788 while (!list_empty(&clist_local)) { 2789 reset_cmd = list_entry((&clist_local)->next, 2790 struct megasas_cmd, list); 2791 list_del_init(&reset_cmd->list); 2792 if (reset_cmd->scmd) { 2793 reset_cmd->scmd->result = DID_REQUEUE << 16; 2794 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", 2795 reset_index, reset_cmd, 2796 reset_cmd->scmd->cmnd[0]); 2797 2798 scsi_done(reset_cmd->scmd); 2799 megasas_return_cmd(instance, reset_cmd); 2800 } else if (reset_cmd->sync_cmd) { 2801 dev_notice(&instance->pdev->dev, "%p synch cmds" 2802 "reset queue\n", 2803 reset_cmd); 2804 2805 reset_cmd->cmd_status_drv = DCMD_INIT; 2806 instance->instancet->fire_cmd(instance, 2807 reset_cmd->frame_phys_addr, 2808 0, instance->reg_set); 2809 } else { 2810 dev_notice(&instance->pdev->dev, "%p unexpected" 2811 "cmds lst\n", 2812 reset_cmd); 2813 } 2814 reset_index++; 2815 } 2816 2817 return SUCCESS; 2818 } 2819 2820 for (i = 0; i < resetwaittime; i++) { 2821 outstanding = atomic_read(&instance->fw_outstanding); 2822 2823 if (!outstanding) 2824 break; 2825 2826 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 2827 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " 2828 "commands to complete\n",i,outstanding); 2829 /* 2830 * Call cmd completion routine. Cmd to be 2831 * be completed directly without depending on isr. 2832 */ 2833 megasas_complete_cmd_dpc((unsigned long)instance); 2834 } 2835 2836 msleep(1000); 2837 } 2838 2839 i = 0; 2840 outstanding = atomic_read(&instance->fw_outstanding); 2841 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2842 2843 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2844 goto no_outstanding; 2845 2846 if (instance->disableOnlineCtrlReset) 2847 goto kill_hba_and_failed; 2848 do { 2849 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { 2850 dev_info(&instance->pdev->dev, 2851 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n", 2852 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); 2853 if (i == 3) 2854 goto kill_hba_and_failed; 2855 megasas_do_ocr(instance); 2856 2857 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2858 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", 2859 __func__, __LINE__); 2860 return FAILED; 2861 } 2862 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", 2863 __func__, __LINE__); 2864 2865 for (sl = 0; sl < 10; sl++) 2866 msleep(500); 2867 2868 outstanding = atomic_read(&instance->fw_outstanding); 2869 2870 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2871 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2872 goto no_outstanding; 2873 } 2874 i++; 2875 } while (i <= 3); 2876 2877no_outstanding: 2878 2879 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", 2880 __func__, __LINE__); 2881 return SUCCESS; 2882 2883kill_hba_and_failed: 2884 2885 /* Reset not supported, kill adapter */ 2886 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" 2887 " disableOnlineCtrlReset %d fw_outstanding %d \n", 2888 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, 2889 atomic_read(&instance->fw_outstanding)); 2890 megasas_dump_pending_frames(instance); 2891 megaraid_sas_kill_hba(instance); 2892 2893 return FAILED; 2894} 2895 2896/** 2897 * megasas_generic_reset - Generic reset routine 2898 * @scmd: Mid-layer SCSI command 2899 * 2900 * This routine implements a generic reset handler for device, bus and host 2901 * reset requests. Device, bus and host specific reset handlers can use this 2902 * function after they do their specific tasks. 2903 */ 2904static int megasas_generic_reset(struct scsi_cmnd *scmd) 2905{ 2906 int ret_val; 2907 struct megasas_instance *instance; 2908 2909 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2910 2911 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", 2912 scmd->cmnd[0], scmd->retries); 2913 2914 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2915 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); 2916 return FAILED; 2917 } 2918 2919 ret_val = megasas_wait_for_outstanding(instance); 2920 if (ret_val == SUCCESS) 2921 dev_notice(&instance->pdev->dev, "reset successful\n"); 2922 else 2923 dev_err(&instance->pdev->dev, "failed to do reset\n"); 2924 2925 return ret_val; 2926} 2927 2928/** 2929 * megasas_reset_timer - quiesce the adapter if required 2930 * @scmd: scsi cmnd 2931 * 2932 * Sets the FW busy flag and reduces the host->can_queue if the 2933 * cmd has not been completed within the timeout period. 2934 */ 2935static enum scsi_timeout_action megasas_reset_timer(struct scsi_cmnd *scmd) 2936{ 2937 struct megasas_instance *instance; 2938 unsigned long flags; 2939 2940 if (time_after(jiffies, scmd->jiffies_at_alloc + 2941 (scmd_timeout * 2) * HZ)) { 2942 return SCSI_EH_NOT_HANDLED; 2943 } 2944 2945 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2946 if (!(instance->flag & MEGASAS_FW_BUSY)) { 2947 /* FW is busy, throttle IO */ 2948 spin_lock_irqsave(instance->host->host_lock, flags); 2949 2950 instance->host->can_queue = instance->throttlequeuedepth; 2951 instance->last_time = jiffies; 2952 instance->flag |= MEGASAS_FW_BUSY; 2953 2954 spin_unlock_irqrestore(instance->host->host_lock, flags); 2955 } 2956 return SCSI_EH_RESET_TIMER; 2957} 2958 2959/** 2960 * megasas_dump - This function will print hexdump of provided buffer. 2961 * @buf: Buffer to be dumped 2962 * @sz: Size in bytes 2963 * @format: Different formats of dumping e.g. format=n will 2964 * cause only 'n' 32 bit words to be dumped in a single 2965 * line. 2966 */ 2967inline void 2968megasas_dump(void *buf, int sz, int format) 2969{ 2970 int i; 2971 __le32 *buf_loc = (__le32 *)buf; 2972 2973 for (i = 0; i < (sz / sizeof(__le32)); i++) { 2974 if ((i % format) == 0) { 2975 if (i != 0) 2976 printk(KERN_CONT "\n"); 2977 printk(KERN_CONT "%08x: ", (i * 4)); 2978 } 2979 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i])); 2980 } 2981 printk(KERN_CONT "\n"); 2982} 2983 2984/** 2985 * megasas_dump_reg_set - This function will print hexdump of register set 2986 * @reg_set: Register set to be dumped 2987 */ 2988inline void 2989megasas_dump_reg_set(void __iomem *reg_set) 2990{ 2991 unsigned int i, sz = 256; 2992 u32 __iomem *reg = (u32 __iomem *)reg_set; 2993 2994 for (i = 0; i < (sz / sizeof(u32)); i++) 2995 printk("%08x: %08x\n", (i * 4), readl(®[i])); 2996} 2997 2998/** 2999 * megasas_dump_fusion_io - This function will print key details 3000 * of SCSI IO 3001 * @scmd: SCSI command pointer of SCSI IO 3002 */ 3003void 3004megasas_dump_fusion_io(struct scsi_cmnd *scmd) 3005{ 3006 struct megasas_cmd_fusion *cmd = megasas_priv(scmd)->cmd_priv; 3007 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; 3008 struct megasas_instance *instance; 3009 3010 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3011 3012 scmd_printk(KERN_INFO, scmd, 3013 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n", 3014 scmd, scmd->retries, scmd->allowed); 3015 scsi_print_command(scmd); 3016 3017 if (cmd) { 3018 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; 3019 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n"); 3020 scmd_printk(KERN_INFO, scmd, 3021 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n", 3022 req_desc->SCSIIO.RequestFlags, 3023 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID, 3024 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle); 3025 3026 printk(KERN_INFO "IO request frame:\n"); 3027 megasas_dump(cmd->io_request, 3028 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8); 3029 printk(KERN_INFO "Chain frame:\n"); 3030 megasas_dump(cmd->sg_frame, 3031 instance->max_chain_frame_sz, 8); 3032 } 3033 3034} 3035 3036/* 3037 * megasas_dump_sys_regs - This function will dump system registers through 3038 * sysfs. 3039 * @reg_set: Pointer to System register set. 3040 * @buf: Buffer to which output is to be written. 3041 * @return: Number of bytes written to buffer. 3042 */ 3043static inline ssize_t 3044megasas_dump_sys_regs(void __iomem *reg_set, char *buf) 3045{ 3046 unsigned int i, sz = 256; 3047 int bytes_wrote = 0; 3048 char *loc = (char *)buf; 3049 u32 __iomem *reg = (u32 __iomem *)reg_set; 3050 3051 for (i = 0; i < sz / sizeof(u32); i++) { 3052 bytes_wrote += scnprintf(loc + bytes_wrote, 3053 PAGE_SIZE - bytes_wrote, 3054 "%08x: %08x\n", (i * 4), 3055 readl(®[i])); 3056 } 3057 return bytes_wrote; 3058} 3059 3060/** 3061 * megasas_reset_bus_host - Bus & host reset handler entry point 3062 * @scmd: Mid-layer SCSI command 3063 */ 3064static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 3065{ 3066 int ret; 3067 struct megasas_instance *instance; 3068 3069 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3070 3071 scmd_printk(KERN_INFO, scmd, 3072 "OCR is requested due to IO timeout!!\n"); 3073 3074 scmd_printk(KERN_INFO, scmd, 3075 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 3076 scmd->device->host->shost_state, 3077 scsi_host_busy(scmd->device->host), 3078 atomic_read(&instance->fw_outstanding)); 3079 /* 3080 * First wait for all commands to complete 3081 */ 3082 if (instance->adapter_type == MFI_SERIES) { 3083 ret = megasas_generic_reset(scmd); 3084 } else { 3085 megasas_dump_fusion_io(scmd); 3086 ret = megasas_reset_fusion(scmd->device->host, 3087 SCSIIO_TIMEOUT_OCR); 3088 } 3089 3090 return ret; 3091} 3092 3093/** 3094 * megasas_task_abort - Issues task abort request to firmware 3095 * (supported only for fusion adapters) 3096 * @scmd: SCSI command pointer 3097 */ 3098static int megasas_task_abort(struct scsi_cmnd *scmd) 3099{ 3100 int ret; 3101 struct megasas_instance *instance; 3102 3103 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3104 3105 if (instance->adapter_type != MFI_SERIES) 3106 ret = megasas_task_abort_fusion(scmd); 3107 else { 3108 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 3109 ret = FAILED; 3110 } 3111 3112 return ret; 3113} 3114 3115/** 3116 * megasas_reset_target: Issues target reset request to firmware 3117 * (supported only for fusion adapters) 3118 * @scmd: SCSI command pointer 3119 */ 3120static int megasas_reset_target(struct scsi_cmnd *scmd) 3121{ 3122 int ret; 3123 struct megasas_instance *instance; 3124 3125 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3126 3127 if (instance->adapter_type != MFI_SERIES) 3128 ret = megasas_reset_target_fusion(scmd); 3129 else { 3130 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 3131 ret = FAILED; 3132 } 3133 3134 return ret; 3135} 3136 3137/** 3138 * megasas_bios_param - Returns disk geometry for a disk 3139 * @sdev: device handle 3140 * @unused: gendisk 3141 * @capacity: drive capacity 3142 * @geom: geometry parameters 3143 */ 3144static int 3145megasas_bios_param(struct scsi_device *sdev, struct gendisk *unused, 3146 sector_t capacity, int geom[]) 3147{ 3148 int heads; 3149 int sectors; 3150 sector_t cylinders; 3151 unsigned long tmp; 3152 3153 /* Default heads (64) & sectors (32) */ 3154 heads = 64; 3155 sectors = 32; 3156 3157 tmp = heads * sectors; 3158 cylinders = capacity; 3159 3160 sector_div(cylinders, tmp); 3161 3162 /* 3163 * Handle extended translation size for logical drives > 1Gb 3164 */ 3165 3166 if (capacity >= 0x200000) { 3167 heads = 255; 3168 sectors = 63; 3169 tmp = heads*sectors; 3170 cylinders = capacity; 3171 sector_div(cylinders, tmp); 3172 } 3173 3174 geom[0] = heads; 3175 geom[1] = sectors; 3176 geom[2] = cylinders; 3177 3178 return 0; 3179} 3180 3181static void megasas_map_queues(struct Scsi_Host *shost) 3182{ 3183 struct megasas_instance *instance; 3184 int qoff = 0, offset; 3185 struct blk_mq_queue_map *map; 3186 3187 instance = (struct megasas_instance *)shost->hostdata; 3188 3189 if (shost->nr_hw_queues == 1) 3190 return; 3191 3192 offset = instance->low_latency_index_start; 3193 3194 /* Setup Default hctx */ 3195 map = &shost->tag_set.map[HCTX_TYPE_DEFAULT]; 3196 map->nr_queues = instance->msix_vectors - offset; 3197 map->queue_offset = 0; 3198 blk_mq_map_hw_queues(map, &instance->pdev->dev, offset); 3199 qoff += map->nr_queues; 3200 offset += map->nr_queues; 3201 3202 /* we never use READ queue, so can't cheat blk-mq */ 3203 shost->tag_set.map[HCTX_TYPE_READ].nr_queues = 0; 3204 3205 /* Setup Poll hctx */ 3206 map = &shost->tag_set.map[HCTX_TYPE_POLL]; 3207 map->nr_queues = instance->iopoll_q_count; 3208 if (map->nr_queues) { 3209 /* 3210 * The poll queue(s) doesn't have an IRQ (and hence IRQ 3211 * affinity), so use the regular blk-mq cpu mapping 3212 */ 3213 map->queue_offset = qoff; 3214 blk_mq_map_queues(map); 3215 } 3216} 3217 3218static void megasas_aen_polling(struct work_struct *work); 3219 3220/** 3221 * megasas_service_aen - Processes an event notification 3222 * @instance: Adapter soft state 3223 * @cmd: AEN command completed by the ISR 3224 * 3225 * For AEN, driver sends a command down to FW that is held by the FW till an 3226 * event occurs. When an event of interest occurs, FW completes the command 3227 * that it was previously holding. 3228 * 3229 * This routines sends SIGIO signal to processes that have registered with the 3230 * driver for AEN. 3231 */ 3232static void 3233megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 3234{ 3235 unsigned long flags; 3236 3237 /* 3238 * Don't signal app if it is just an aborted previously registered aen 3239 */ 3240 if ((!cmd->abort_aen) && (instance->unload == 0)) { 3241 spin_lock_irqsave(&poll_aen_lock, flags); 3242 megasas_poll_wait_aen = 1; 3243 spin_unlock_irqrestore(&poll_aen_lock, flags); 3244 wake_up(&megasas_poll_wait); 3245 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 3246 } 3247 else 3248 cmd->abort_aen = 0; 3249 3250 instance->aen_cmd = NULL; 3251 3252 megasas_return_cmd(instance, cmd); 3253 3254 if ((instance->unload == 0) && 3255 ((instance->issuepend_done == 1))) { 3256 struct megasas_aen_event *ev; 3257 3258 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3259 if (!ev) { 3260 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 3261 } else { 3262 ev->instance = instance; 3263 instance->ev = ev; 3264 INIT_DELAYED_WORK(&ev->hotplug_work, 3265 megasas_aen_polling); 3266 schedule_delayed_work(&ev->hotplug_work, 0); 3267 } 3268 } 3269} 3270 3271static ssize_t 3272fw_crash_buffer_store(struct device *cdev, 3273 struct device_attribute *attr, const char *buf, size_t count) 3274{ 3275 struct Scsi_Host *shost = class_to_shost(cdev); 3276 struct megasas_instance *instance = 3277 (struct megasas_instance *) shost->hostdata; 3278 int val = 0; 3279 3280 if (kstrtoint(buf, 0, &val) != 0) 3281 return -EINVAL; 3282 3283 mutex_lock(&instance->crashdump_lock); 3284 instance->fw_crash_buffer_offset = val; 3285 mutex_unlock(&instance->crashdump_lock); 3286 return strlen(buf); 3287} 3288 3289static ssize_t 3290fw_crash_buffer_show(struct device *cdev, 3291 struct device_attribute *attr, char *buf) 3292{ 3293 struct Scsi_Host *shost = class_to_shost(cdev); 3294 struct megasas_instance *instance = 3295 (struct megasas_instance *) shost->hostdata; 3296 u32 size; 3297 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 3298 unsigned long chunk_left_bytes; 3299 unsigned long src_addr; 3300 u32 buff_offset; 3301 3302 mutex_lock(&instance->crashdump_lock); 3303 buff_offset = instance->fw_crash_buffer_offset; 3304 if (!instance->crash_dump_buf || 3305 !((instance->fw_crash_state == AVAILABLE) || 3306 (instance->fw_crash_state == COPYING))) { 3307 dev_err(&instance->pdev->dev, 3308 "Firmware crash dump is not available\n"); 3309 mutex_unlock(&instance->crashdump_lock); 3310 return -EINVAL; 3311 } 3312 3313 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 3314 dev_err(&instance->pdev->dev, 3315 "Firmware crash dump offset is out of range\n"); 3316 mutex_unlock(&instance->crashdump_lock); 3317 return 0; 3318 } 3319 3320 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 3321 chunk_left_bytes = dmachunk - (buff_offset % dmachunk); 3322 size = (size > chunk_left_bytes) ? chunk_left_bytes : size; 3323 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3324 3325 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 3326 (buff_offset % dmachunk); 3327 memcpy(buf, (void *)src_addr, size); 3328 mutex_unlock(&instance->crashdump_lock); 3329 3330 return size; 3331} 3332 3333static ssize_t 3334fw_crash_buffer_size_show(struct device *cdev, 3335 struct device_attribute *attr, char *buf) 3336{ 3337 struct Scsi_Host *shost = class_to_shost(cdev); 3338 struct megasas_instance *instance = 3339 (struct megasas_instance *) shost->hostdata; 3340 3341 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3342 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3343} 3344 3345static ssize_t 3346fw_crash_state_store(struct device *cdev, 3347 struct device_attribute *attr, const char *buf, size_t count) 3348{ 3349 struct Scsi_Host *shost = class_to_shost(cdev); 3350 struct megasas_instance *instance = 3351 (struct megasas_instance *) shost->hostdata; 3352 int val = 0; 3353 3354 if (kstrtoint(buf, 0, &val) != 0) 3355 return -EINVAL; 3356 3357 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3358 dev_err(&instance->pdev->dev, "application updates invalid " 3359 "firmware crash state\n"); 3360 return -EINVAL; 3361 } 3362 3363 instance->fw_crash_state = val; 3364 3365 if ((val == COPIED) || (val == COPY_ERROR)) { 3366 mutex_lock(&instance->crashdump_lock); 3367 megasas_free_host_crash_buffer(instance); 3368 mutex_unlock(&instance->crashdump_lock); 3369 if (val == COPY_ERROR) 3370 dev_info(&instance->pdev->dev, "application failed to " 3371 "copy Firmware crash dump\n"); 3372 else 3373 dev_info(&instance->pdev->dev, "Firmware crash dump " 3374 "copied successfully\n"); 3375 } 3376 return strlen(buf); 3377} 3378 3379static ssize_t 3380fw_crash_state_show(struct device *cdev, 3381 struct device_attribute *attr, char *buf) 3382{ 3383 struct Scsi_Host *shost = class_to_shost(cdev); 3384 struct megasas_instance *instance = 3385 (struct megasas_instance *) shost->hostdata; 3386 3387 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3388} 3389 3390static ssize_t 3391page_size_show(struct device *cdev, 3392 struct device_attribute *attr, char *buf) 3393{ 3394 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3395} 3396 3397static ssize_t 3398ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3399 char *buf) 3400{ 3401 struct Scsi_Host *shost = class_to_shost(cdev); 3402 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3403 3404 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3405} 3406 3407static ssize_t 3408fw_cmds_outstanding_show(struct device *cdev, 3409 struct device_attribute *attr, char *buf) 3410{ 3411 struct Scsi_Host *shost = class_to_shost(cdev); 3412 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3413 3414 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); 3415} 3416 3417static ssize_t 3418enable_sdev_max_qd_show(struct device *cdev, 3419 struct device_attribute *attr, char *buf) 3420{ 3421 struct Scsi_Host *shost = class_to_shost(cdev); 3422 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3423 3424 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); 3425} 3426 3427static ssize_t 3428enable_sdev_max_qd_store(struct device *cdev, 3429 struct device_attribute *attr, const char *buf, size_t count) 3430{ 3431 struct Scsi_Host *shost = class_to_shost(cdev); 3432 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3433 u32 val = 0; 3434 bool is_target_prop; 3435 int ret_target_prop = DCMD_FAILED; 3436 struct scsi_device *sdev; 3437 3438 if (kstrtou32(buf, 0, &val) != 0) { 3439 pr_err("megasas: could not set enable_sdev_max_qd\n"); 3440 return -EINVAL; 3441 } 3442 3443 mutex_lock(&instance->reset_mutex); 3444 if (val) 3445 instance->enable_sdev_max_qd = true; 3446 else 3447 instance->enable_sdev_max_qd = false; 3448 3449 shost_for_each_device(sdev, shost) { 3450 ret_target_prop = megasas_get_target_prop(instance, sdev); 3451 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 3452 megasas_set_fw_assisted_qd(sdev, is_target_prop); 3453 } 3454 mutex_unlock(&instance->reset_mutex); 3455 3456 return strlen(buf); 3457} 3458 3459static ssize_t 3460dump_system_regs_show(struct device *cdev, 3461 struct device_attribute *attr, char *buf) 3462{ 3463 struct Scsi_Host *shost = class_to_shost(cdev); 3464 struct megasas_instance *instance = 3465 (struct megasas_instance *)shost->hostdata; 3466 3467 return megasas_dump_sys_regs(instance->reg_set, buf); 3468} 3469 3470static ssize_t 3471raid_map_id_show(struct device *cdev, struct device_attribute *attr, 3472 char *buf) 3473{ 3474 struct Scsi_Host *shost = class_to_shost(cdev); 3475 struct megasas_instance *instance = 3476 (struct megasas_instance *)shost->hostdata; 3477 3478 return snprintf(buf, PAGE_SIZE, "%ld\n", 3479 (unsigned long)instance->map_id); 3480} 3481 3482static DEVICE_ATTR_RW(fw_crash_buffer); 3483static DEVICE_ATTR_RO(fw_crash_buffer_size); 3484static DEVICE_ATTR_RW(fw_crash_state); 3485static DEVICE_ATTR_RO(page_size); 3486static DEVICE_ATTR_RO(ldio_outstanding); 3487static DEVICE_ATTR_RO(fw_cmds_outstanding); 3488static DEVICE_ATTR_RW(enable_sdev_max_qd); 3489static DEVICE_ATTR_RO(dump_system_regs); 3490static DEVICE_ATTR_RO(raid_map_id); 3491 3492static struct attribute *megaraid_host_attrs[] = { 3493 &dev_attr_fw_crash_buffer_size.attr, 3494 &dev_attr_fw_crash_buffer.attr, 3495 &dev_attr_fw_crash_state.attr, 3496 &dev_attr_page_size.attr, 3497 &dev_attr_ldio_outstanding.attr, 3498 &dev_attr_fw_cmds_outstanding.attr, 3499 &dev_attr_enable_sdev_max_qd.attr, 3500 &dev_attr_dump_system_regs.attr, 3501 &dev_attr_raid_map_id.attr, 3502 NULL, 3503}; 3504 3505ATTRIBUTE_GROUPS(megaraid_host); 3506 3507/* 3508 * Scsi host template for megaraid_sas driver 3509 */ 3510static const struct scsi_host_template megasas_template = { 3511 3512 .module = THIS_MODULE, 3513 .name = "Avago SAS based MegaRAID driver", 3514 .proc_name = "megaraid_sas", 3515 .sdev_configure = megasas_sdev_configure, 3516 .sdev_init = megasas_sdev_init, 3517 .sdev_destroy = megasas_sdev_destroy, 3518 .queuecommand = megasas_queue_command, 3519 .eh_target_reset_handler = megasas_reset_target, 3520 .eh_abort_handler = megasas_task_abort, 3521 .eh_host_reset_handler = megasas_reset_bus_host, 3522 .eh_timed_out = megasas_reset_timer, 3523 .shost_groups = megaraid_host_groups, 3524 .bios_param = megasas_bios_param, 3525 .map_queues = megasas_map_queues, 3526 .mq_poll = megasas_blk_mq_poll, 3527 .change_queue_depth = scsi_change_queue_depth, 3528 .max_segment_size = 0xffffffff, 3529 .cmd_size = sizeof(struct megasas_cmd_priv), 3530}; 3531 3532/** 3533 * megasas_complete_int_cmd - Completes an internal command 3534 * @instance: Adapter soft state 3535 * @cmd: Command to be completed 3536 * 3537 * The megasas_issue_blocked_cmd() function waits for a command to complete 3538 * after it issues a command. This function wakes up that waiting routine by 3539 * calling wake_up() on the wait queue. 3540 */ 3541static void 3542megasas_complete_int_cmd(struct megasas_instance *instance, 3543 struct megasas_cmd *cmd) 3544{ 3545 if (cmd->cmd_status_drv == DCMD_INIT) 3546 cmd->cmd_status_drv = 3547 (cmd->frame->io.cmd_status == MFI_STAT_OK) ? 3548 DCMD_SUCCESS : DCMD_FAILED; 3549 3550 wake_up(&instance->int_cmd_wait_q); 3551} 3552 3553/** 3554 * megasas_complete_abort - Completes aborting a command 3555 * @instance: Adapter soft state 3556 * @cmd: Cmd that was issued to abort another cmd 3557 * 3558 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3559 * after it issues an abort on a previously issued command. This function 3560 * wakes up all functions waiting on the same wait queue. 3561 */ 3562static void 3563megasas_complete_abort(struct megasas_instance *instance, 3564 struct megasas_cmd *cmd) 3565{ 3566 if (cmd->sync_cmd) { 3567 cmd->sync_cmd = 0; 3568 cmd->cmd_status_drv = DCMD_SUCCESS; 3569 wake_up(&instance->abort_cmd_wait_q); 3570 } 3571} 3572 3573static void 3574megasas_set_ld_removed_by_fw(struct megasas_instance *instance) 3575{ 3576 uint i; 3577 3578 for (i = 0; (i < MEGASAS_MAX_LD_IDS); i++) { 3579 if (instance->ld_ids_prev[i] != 0xff && 3580 instance->ld_ids_from_raidmap[i] == 0xff) { 3581 if (megasas_dbg_lvl & LD_PD_DEBUG) 3582 dev_info(&instance->pdev->dev, 3583 "LD target ID %d removed from RAID map\n", i); 3584 instance->ld_tgtid_status[i] = LD_TARGET_ID_DELETED; 3585 } 3586 } 3587} 3588 3589/** 3590 * megasas_complete_cmd - Completes a command 3591 * @instance: Adapter soft state 3592 * @cmd: Command to be completed 3593 * @alt_status: If non-zero, use this value as status to 3594 * SCSI mid-layer instead of the value returned 3595 * by the FW. This should be used if caller wants 3596 * an alternate status (as in the case of aborted 3597 * commands) 3598 */ 3599void 3600megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3601 u8 alt_status) 3602{ 3603 int exception = 0; 3604 struct megasas_header *hdr = &cmd->frame->hdr; 3605 unsigned long flags; 3606 struct fusion_context *fusion = instance->ctrl_context; 3607 u32 opcode, status; 3608 3609 /* flag for the retry reset */ 3610 cmd->retry_for_fw_reset = 0; 3611 3612 if (cmd->scmd) 3613 megasas_priv(cmd->scmd)->cmd_priv = NULL; 3614 3615 switch (hdr->cmd) { 3616 case MFI_CMD_INVALID: 3617 /* Some older 1068 controller FW may keep a pended 3618 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3619 when booting the kdump kernel. Ignore this command to 3620 prevent a kernel panic on shutdown of the kdump kernel. */ 3621 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3622 "completed\n"); 3623 dev_warn(&instance->pdev->dev, "If you have a controller " 3624 "other than PERC5, please upgrade your firmware\n"); 3625 break; 3626 case MFI_CMD_PD_SCSI_IO: 3627 case MFI_CMD_LD_SCSI_IO: 3628 3629 /* 3630 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3631 * issued either through an IO path or an IOCTL path. If it 3632 * was via IOCTL, we will send it to internal completion. 3633 */ 3634 if (cmd->sync_cmd) { 3635 cmd->sync_cmd = 0; 3636 megasas_complete_int_cmd(instance, cmd); 3637 break; 3638 } 3639 fallthrough; 3640 3641 case MFI_CMD_LD_READ: 3642 case MFI_CMD_LD_WRITE: 3643 3644 if (alt_status) { 3645 cmd->scmd->result = alt_status << 16; 3646 exception = 1; 3647 } 3648 3649 if (exception) { 3650 3651 atomic_dec(&instance->fw_outstanding); 3652 3653 scsi_dma_unmap(cmd->scmd); 3654 scsi_done(cmd->scmd); 3655 megasas_return_cmd(instance, cmd); 3656 3657 break; 3658 } 3659 3660 switch (hdr->cmd_status) { 3661 3662 case MFI_STAT_OK: 3663 cmd->scmd->result = DID_OK << 16; 3664 break; 3665 3666 case MFI_STAT_SCSI_IO_FAILED: 3667 case MFI_STAT_LD_INIT_IN_PROGRESS: 3668 if (hdr->scsi_status == 0xf0) 3669 cmd->scmd->result = (DID_ERROR << 16) | SAM_STAT_CHECK_CONDITION; 3670 else 3671 cmd->scmd->result = (DID_ERROR << 16) | hdr->scsi_status; 3672 break; 3673 3674 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3675 3676 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3677 3678 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3679 memset(cmd->scmd->sense_buffer, 0, 3680 SCSI_SENSE_BUFFERSIZE); 3681 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3682 hdr->sense_len); 3683 } 3684 3685 break; 3686 3687 case MFI_STAT_LD_OFFLINE: 3688 case MFI_STAT_DEVICE_NOT_FOUND: 3689 cmd->scmd->result = DID_BAD_TARGET << 16; 3690 break; 3691 3692 default: 3693 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3694 hdr->cmd_status); 3695 cmd->scmd->result = DID_ERROR << 16; 3696 break; 3697 } 3698 3699 atomic_dec(&instance->fw_outstanding); 3700 3701 scsi_dma_unmap(cmd->scmd); 3702 scsi_done(cmd->scmd); 3703 megasas_return_cmd(instance, cmd); 3704 3705 break; 3706 3707 case MFI_CMD_SMP: 3708 case MFI_CMD_STP: 3709 case MFI_CMD_NVME: 3710 case MFI_CMD_TOOLBOX: 3711 megasas_complete_int_cmd(instance, cmd); 3712 break; 3713 3714 case MFI_CMD_DCMD: 3715 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3716 /* Check for LD map update */ 3717 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3718 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3719 fusion->fast_path_io = 0; 3720 spin_lock_irqsave(instance->host->host_lock, flags); 3721 status = cmd->frame->hdr.cmd_status; 3722 instance->map_update_cmd = NULL; 3723 if (status != MFI_STAT_OK) { 3724 if (status != MFI_STAT_NOT_FOUND) 3725 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3726 cmd->frame->hdr.cmd_status); 3727 else { 3728 megasas_return_cmd(instance, cmd); 3729 spin_unlock_irqrestore( 3730 instance->host->host_lock, 3731 flags); 3732 break; 3733 } 3734 } 3735 3736 megasas_return_cmd(instance, cmd); 3737 3738 /* 3739 * Set fast path IO to ZERO. 3740 * Validate Map will set proper value. 3741 * Meanwhile all IOs will go as LD IO. 3742 */ 3743 if (status == MFI_STAT_OK && 3744 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { 3745 instance->map_id++; 3746 fusion->fast_path_io = 1; 3747 } else { 3748 fusion->fast_path_io = 0; 3749 } 3750 3751 if (instance->adapter_type >= INVADER_SERIES) 3752 megasas_set_ld_removed_by_fw(instance); 3753 3754 megasas_sync_map_info(instance); 3755 spin_unlock_irqrestore(instance->host->host_lock, 3756 flags); 3757 3758 break; 3759 } 3760 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3761 opcode == MR_DCMD_CTRL_EVENT_GET) { 3762 spin_lock_irqsave(&poll_aen_lock, flags); 3763 megasas_poll_wait_aen = 0; 3764 spin_unlock_irqrestore(&poll_aen_lock, flags); 3765 } 3766 3767 /* FW has an updated PD sequence */ 3768 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3769 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3770 3771 spin_lock_irqsave(instance->host->host_lock, flags); 3772 status = cmd->frame->hdr.cmd_status; 3773 instance->jbod_seq_cmd = NULL; 3774 megasas_return_cmd(instance, cmd); 3775 3776 if (status == MFI_STAT_OK) { 3777 instance->pd_seq_map_id++; 3778 /* Re-register a pd sync seq num cmd */ 3779 if (megasas_sync_pd_seq_num(instance, true)) 3780 instance->use_seqnum_jbod_fp = false; 3781 } else 3782 instance->use_seqnum_jbod_fp = false; 3783 3784 spin_unlock_irqrestore(instance->host->host_lock, flags); 3785 break; 3786 } 3787 3788 /* 3789 * See if got an event notification 3790 */ 3791 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3792 megasas_service_aen(instance, cmd); 3793 else 3794 megasas_complete_int_cmd(instance, cmd); 3795 3796 break; 3797 3798 case MFI_CMD_ABORT: 3799 /* 3800 * Cmd issued to abort another cmd returned 3801 */ 3802 megasas_complete_abort(instance, cmd); 3803 break; 3804 3805 default: 3806 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3807 hdr->cmd); 3808 megasas_complete_int_cmd(instance, cmd); 3809 break; 3810 } 3811} 3812 3813/** 3814 * megasas_issue_pending_cmds_again - issue all pending cmds 3815 * in FW again because of the fw reset 3816 * @instance: Adapter soft state 3817 */ 3818static inline void 3819megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3820{ 3821 struct megasas_cmd *cmd; 3822 struct list_head clist_local; 3823 union megasas_evt_class_locale class_locale; 3824 unsigned long flags; 3825 u32 seq_num; 3826 3827 INIT_LIST_HEAD(&clist_local); 3828 spin_lock_irqsave(&instance->hba_lock, flags); 3829 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3830 spin_unlock_irqrestore(&instance->hba_lock, flags); 3831 3832 while (!list_empty(&clist_local)) { 3833 cmd = list_entry((&clist_local)->next, 3834 struct megasas_cmd, list); 3835 list_del_init(&cmd->list); 3836 3837 if (cmd->sync_cmd || cmd->scmd) { 3838 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3839 "detected to be pending while HBA reset\n", 3840 cmd, cmd->scmd, cmd->sync_cmd); 3841 3842 cmd->retry_for_fw_reset++; 3843 3844 if (cmd->retry_for_fw_reset == 3) { 3845 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3846 "was tried multiple times during reset." 3847 "Shutting down the HBA\n", 3848 cmd, cmd->scmd, cmd->sync_cmd); 3849 instance->instancet->disable_intr(instance); 3850 atomic_set(&instance->fw_reset_no_pci_access, 1); 3851 megaraid_sas_kill_hba(instance); 3852 return; 3853 } 3854 } 3855 3856 if (cmd->sync_cmd == 1) { 3857 if (cmd->scmd) { 3858 dev_notice(&instance->pdev->dev, "unexpected" 3859 "cmd attached to internal command!\n"); 3860 } 3861 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3862 "on the internal reset queue," 3863 "issue it again.\n", cmd); 3864 cmd->cmd_status_drv = DCMD_INIT; 3865 instance->instancet->fire_cmd(instance, 3866 cmd->frame_phys_addr, 3867 0, instance->reg_set); 3868 } else if (cmd->scmd) { 3869 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3870 "detected on the internal queue, issue again.\n", 3871 cmd, cmd->scmd->cmnd[0]); 3872 3873 atomic_inc(&instance->fw_outstanding); 3874 instance->instancet->fire_cmd(instance, 3875 cmd->frame_phys_addr, 3876 cmd->frame_count-1, instance->reg_set); 3877 } else { 3878 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3879 "internal reset defer list while re-issue!!\n", 3880 cmd); 3881 } 3882 } 3883 3884 if (instance->aen_cmd) { 3885 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3886 megasas_return_cmd(instance, instance->aen_cmd); 3887 3888 instance->aen_cmd = NULL; 3889 } 3890 3891 /* 3892 * Initiate AEN (Asynchronous Event Notification) 3893 */ 3894 seq_num = instance->last_seq_num; 3895 class_locale.members.reserved = 0; 3896 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3897 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3898 3899 megasas_register_aen(instance, seq_num, class_locale.word); 3900} 3901 3902/* 3903 * Move the internal reset pending commands to a deferred queue. 3904 * 3905 * We move the commands pending at internal reset time to a 3906 * pending queue. This queue would be flushed after successful 3907 * completion of the internal reset sequence. if the internal reset 3908 * did not complete in time, the kernel reset handler would flush 3909 * these commands. 3910 */ 3911static void 3912megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3913{ 3914 struct megasas_cmd *cmd; 3915 int i; 3916 u16 max_cmd = instance->max_fw_cmds; 3917 u32 defer_index; 3918 unsigned long flags; 3919 3920 defer_index = 0; 3921 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3922 for (i = 0; i < max_cmd; i++) { 3923 cmd = instance->cmd_list[i]; 3924 if (cmd->sync_cmd == 1 || cmd->scmd) { 3925 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3926 "on the defer queue as internal\n", 3927 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3928 3929 if (!list_empty(&cmd->list)) { 3930 dev_notice(&instance->pdev->dev, "ERROR while" 3931 " moving this cmd:%p, %d %p, it was" 3932 "discovered on some list?\n", 3933 cmd, cmd->sync_cmd, cmd->scmd); 3934 3935 list_del_init(&cmd->list); 3936 } 3937 defer_index++; 3938 list_add_tail(&cmd->list, 3939 &instance->internal_reset_pending_q); 3940 } 3941 } 3942 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3943} 3944 3945 3946static void 3947process_fw_state_change_wq(struct work_struct *work) 3948{ 3949 struct megasas_instance *instance = 3950 container_of(work, struct megasas_instance, work_init); 3951 u32 wait; 3952 unsigned long flags; 3953 3954 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3955 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3956 atomic_read(&instance->adprecovery)); 3957 return ; 3958 } 3959 3960 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3961 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3962 "state, restarting it...\n"); 3963 3964 instance->instancet->disable_intr(instance); 3965 atomic_set(&instance->fw_outstanding, 0); 3966 3967 atomic_set(&instance->fw_reset_no_pci_access, 1); 3968 instance->instancet->adp_reset(instance, instance->reg_set); 3969 atomic_set(&instance->fw_reset_no_pci_access, 0); 3970 3971 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3972 "initiating next stage...\n"); 3973 3974 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3975 "state 2 starting...\n"); 3976 3977 /* waiting for about 20 second before start the second init */ 3978 for (wait = 0; wait < 30; wait++) { 3979 msleep(1000); 3980 } 3981 3982 if (megasas_transition_to_ready(instance, 1)) { 3983 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3984 3985 atomic_set(&instance->fw_reset_no_pci_access, 1); 3986 megaraid_sas_kill_hba(instance); 3987 return ; 3988 } 3989 3990 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3991 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3992 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3993 ) { 3994 *instance->consumer = *instance->producer; 3995 } else { 3996 *instance->consumer = 0; 3997 *instance->producer = 0; 3998 } 3999 4000 megasas_issue_init_mfi(instance); 4001 4002 spin_lock_irqsave(&instance->hba_lock, flags); 4003 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 4004 spin_unlock_irqrestore(&instance->hba_lock, flags); 4005 instance->instancet->enable_intr(instance); 4006 4007 megasas_issue_pending_cmds_again(instance); 4008 instance->issuepend_done = 1; 4009 } 4010} 4011 4012/** 4013 * megasas_deplete_reply_queue - Processes all completed commands 4014 * @instance: Adapter soft state 4015 * @alt_status: Alternate status to be returned to 4016 * SCSI mid-layer instead of the status 4017 * returned by the FW 4018 * Note: this must be called with hba lock held 4019 */ 4020static int 4021megasas_deplete_reply_queue(struct megasas_instance *instance, 4022 u8 alt_status) 4023{ 4024 u32 mfiStatus; 4025 u32 fw_state; 4026 4027 if (instance->instancet->check_reset(instance, instance->reg_set) == 1) 4028 return IRQ_HANDLED; 4029 4030 mfiStatus = instance->instancet->clear_intr(instance); 4031 if (mfiStatus == 0) { 4032 /* Hardware may not set outbound_intr_status in MSI-X mode */ 4033 if (!instance->msix_vectors) 4034 return IRQ_NONE; 4035 } 4036 4037 instance->mfiStatus = mfiStatus; 4038 4039 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 4040 fw_state = instance->instancet->read_fw_status_reg( 4041 instance) & MFI_STATE_MASK; 4042 4043 if (fw_state != MFI_STATE_FAULT) { 4044 dev_notice(&instance->pdev->dev, "fw state:%x\n", 4045 fw_state); 4046 } 4047 4048 if ((fw_state == MFI_STATE_FAULT) && 4049 (instance->disableOnlineCtrlReset == 0)) { 4050 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 4051 4052 if ((instance->pdev->device == 4053 PCI_DEVICE_ID_LSI_SAS1064R) || 4054 (instance->pdev->device == 4055 PCI_DEVICE_ID_DELL_PERC5) || 4056 (instance->pdev->device == 4057 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 4058 4059 *instance->consumer = 4060 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 4061 } 4062 4063 4064 instance->instancet->disable_intr(instance); 4065 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 4066 instance->issuepend_done = 0; 4067 4068 atomic_set(&instance->fw_outstanding, 0); 4069 megasas_internal_reset_defer_cmds(instance); 4070 4071 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 4072 fw_state, atomic_read(&instance->adprecovery)); 4073 4074 schedule_work(&instance->work_init); 4075 return IRQ_HANDLED; 4076 4077 } else { 4078 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 4079 fw_state, instance->disableOnlineCtrlReset); 4080 } 4081 } 4082 4083 tasklet_schedule(&instance->isr_tasklet); 4084 return IRQ_HANDLED; 4085} 4086 4087/** 4088 * megasas_isr - isr entry point 4089 * @irq: IRQ number 4090 * @devp: IRQ context address 4091 */ 4092static irqreturn_t megasas_isr(int irq, void *devp) 4093{ 4094 struct megasas_irq_context *irq_context = devp; 4095 struct megasas_instance *instance = irq_context->instance; 4096 unsigned long flags; 4097 irqreturn_t rc; 4098 4099 if (atomic_read(&instance->fw_reset_no_pci_access)) 4100 return IRQ_HANDLED; 4101 4102 spin_lock_irqsave(&instance->hba_lock, flags); 4103 rc = megasas_deplete_reply_queue(instance, DID_OK); 4104 spin_unlock_irqrestore(&instance->hba_lock, flags); 4105 4106 return rc; 4107} 4108 4109/** 4110 * megasas_transition_to_ready - Move the FW to READY state 4111 * @instance: Adapter soft state 4112 * @ocr: Adapter reset state 4113 * 4114 * During the initialization, FW passes can potentially be in any one of 4115 * several possible states. If the FW in operational, waiting-for-handshake 4116 * states, driver must take steps to bring it to ready state. Otherwise, it 4117 * has to wait for the ready state. 4118 */ 4119int 4120megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 4121{ 4122 int i; 4123 u8 max_wait; 4124 u32 fw_state; 4125 u32 abs_state, curr_abs_state; 4126 4127 abs_state = instance->instancet->read_fw_status_reg(instance); 4128 fw_state = abs_state & MFI_STATE_MASK; 4129 4130 if (fw_state != MFI_STATE_READY) 4131 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 4132 " state\n"); 4133 4134 while (fw_state != MFI_STATE_READY) { 4135 4136 switch (fw_state) { 4137 4138 case MFI_STATE_FAULT: 4139 dev_printk(KERN_ERR, &instance->pdev->dev, 4140 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", 4141 abs_state & MFI_STATE_FAULT_CODE, 4142 abs_state & MFI_STATE_FAULT_SUBCODE, __func__); 4143 if (ocr) { 4144 max_wait = MEGASAS_RESET_WAIT_TIME; 4145 break; 4146 } else { 4147 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4148 megasas_dump_reg_set(instance->reg_set); 4149 return -ENODEV; 4150 } 4151 4152 case MFI_STATE_WAIT_HANDSHAKE: 4153 /* 4154 * Set the CLR bit in inbound doorbell 4155 */ 4156 if ((instance->pdev->device == 4157 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4158 (instance->pdev->device == 4159 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4160 (instance->adapter_type != MFI_SERIES)) 4161 writel( 4162 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4163 &instance->reg_set->doorbell); 4164 else 4165 writel( 4166 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4167 &instance->reg_set->inbound_doorbell); 4168 4169 max_wait = MEGASAS_RESET_WAIT_TIME; 4170 break; 4171 4172 case MFI_STATE_BOOT_MESSAGE_PENDING: 4173 if ((instance->pdev->device == 4174 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4175 (instance->pdev->device == 4176 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4177 (instance->adapter_type != MFI_SERIES)) 4178 writel(MFI_INIT_HOTPLUG, 4179 &instance->reg_set->doorbell); 4180 else 4181 writel(MFI_INIT_HOTPLUG, 4182 &instance->reg_set->inbound_doorbell); 4183 4184 max_wait = MEGASAS_RESET_WAIT_TIME; 4185 break; 4186 4187 case MFI_STATE_OPERATIONAL: 4188 /* 4189 * Bring it to READY state; assuming max wait 10 secs 4190 */ 4191 instance->instancet->disable_intr(instance); 4192 if ((instance->pdev->device == 4193 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4194 (instance->pdev->device == 4195 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4196 (instance->adapter_type != MFI_SERIES)) { 4197 writel(MFI_RESET_FLAGS, 4198 &instance->reg_set->doorbell); 4199 4200 if (instance->adapter_type != MFI_SERIES) { 4201 for (i = 0; i < (10 * 1000); i += 20) { 4202 if (megasas_readl( 4203 instance, 4204 &instance-> 4205 reg_set-> 4206 doorbell) & 1) 4207 msleep(20); 4208 else 4209 break; 4210 } 4211 } 4212 } else 4213 writel(MFI_RESET_FLAGS, 4214 &instance->reg_set->inbound_doorbell); 4215 4216 max_wait = MEGASAS_RESET_WAIT_TIME; 4217 break; 4218 4219 case MFI_STATE_UNDEFINED: 4220 /* 4221 * This state should not last for more than 2 seconds 4222 */ 4223 max_wait = MEGASAS_RESET_WAIT_TIME; 4224 break; 4225 4226 case MFI_STATE_BB_INIT: 4227 max_wait = MEGASAS_RESET_WAIT_TIME; 4228 break; 4229 4230 case MFI_STATE_FW_INIT: 4231 max_wait = MEGASAS_RESET_WAIT_TIME; 4232 break; 4233 4234 case MFI_STATE_FW_INIT_2: 4235 max_wait = MEGASAS_RESET_WAIT_TIME; 4236 break; 4237 4238 case MFI_STATE_DEVICE_SCAN: 4239 max_wait = MEGASAS_RESET_WAIT_TIME; 4240 break; 4241 4242 case MFI_STATE_FLUSH_CACHE: 4243 max_wait = MEGASAS_RESET_WAIT_TIME; 4244 break; 4245 4246 default: 4247 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 4248 fw_state); 4249 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4250 megasas_dump_reg_set(instance->reg_set); 4251 return -ENODEV; 4252 } 4253 4254 /* 4255 * The cur_state should not last for more than max_wait secs 4256 */ 4257 for (i = 0; i < max_wait * 50; i++) { 4258 curr_abs_state = instance->instancet-> 4259 read_fw_status_reg(instance); 4260 4261 if (abs_state == curr_abs_state) { 4262 msleep(20); 4263 } else 4264 break; 4265 } 4266 4267 /* 4268 * Return error if fw_state hasn't changed after max_wait 4269 */ 4270 if (curr_abs_state == abs_state) { 4271 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 4272 "in %d secs\n", fw_state, max_wait); 4273 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4274 megasas_dump_reg_set(instance->reg_set); 4275 return -ENODEV; 4276 } 4277 4278 abs_state = curr_abs_state; 4279 fw_state = curr_abs_state & MFI_STATE_MASK; 4280 } 4281 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 4282 4283 return 0; 4284} 4285 4286/** 4287 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 4288 * @instance: Adapter soft state 4289 */ 4290static void megasas_teardown_frame_pool(struct megasas_instance *instance) 4291{ 4292 int i; 4293 u16 max_cmd = instance->max_mfi_cmds; 4294 struct megasas_cmd *cmd; 4295 4296 if (!instance->frame_dma_pool) 4297 return; 4298 4299 /* 4300 * Return all frames to pool 4301 */ 4302 for (i = 0; i < max_cmd; i++) { 4303 4304 cmd = instance->cmd_list[i]; 4305 4306 if (cmd->frame) 4307 dma_pool_free(instance->frame_dma_pool, cmd->frame, 4308 cmd->frame_phys_addr); 4309 4310 if (cmd->sense) 4311 dma_pool_free(instance->sense_dma_pool, cmd->sense, 4312 cmd->sense_phys_addr); 4313 } 4314 4315 /* 4316 * Now destroy the pool itself 4317 */ 4318 dma_pool_destroy(instance->frame_dma_pool); 4319 dma_pool_destroy(instance->sense_dma_pool); 4320 4321 instance->frame_dma_pool = NULL; 4322 instance->sense_dma_pool = NULL; 4323} 4324 4325/** 4326 * megasas_create_frame_pool - Creates DMA pool for cmd frames 4327 * @instance: Adapter soft state 4328 * 4329 * Each command packet has an embedded DMA memory buffer that is used for 4330 * filling MFI frame and the SG list that immediately follows the frame. This 4331 * function creates those DMA memory buffers for each command packet by using 4332 * PCI pool facility. 4333 */ 4334static int megasas_create_frame_pool(struct megasas_instance *instance) 4335{ 4336 int i; 4337 u16 max_cmd; 4338 u32 frame_count; 4339 struct megasas_cmd *cmd; 4340 4341 max_cmd = instance->max_mfi_cmds; 4342 4343 /* 4344 * For MFI controllers. 4345 * max_num_sge = 60 4346 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 4347 * Total 960 byte (15 MFI frame of 64 byte) 4348 * 4349 * Fusion adapter require only 3 extra frame. 4350 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 4351 * max_sge_sz = 12 byte (sizeof megasas_sge64) 4352 * Total 192 byte (3 MFI frame of 64 byte) 4353 */ 4354 frame_count = (instance->adapter_type == MFI_SERIES) ? 4355 (15 + 1) : (3 + 1); 4356 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 4357 /* 4358 * Use DMA pool facility provided by PCI layer 4359 */ 4360 instance->frame_dma_pool = dma_pool_create("megasas frame pool", 4361 &instance->pdev->dev, 4362 instance->mfi_frame_size, 256, 0); 4363 4364 if (!instance->frame_dma_pool) { 4365 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 4366 return -ENOMEM; 4367 } 4368 4369 instance->sense_dma_pool = dma_pool_create("megasas sense pool", 4370 &instance->pdev->dev, 128, 4371 4, 0); 4372 4373 if (!instance->sense_dma_pool) { 4374 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 4375 4376 dma_pool_destroy(instance->frame_dma_pool); 4377 instance->frame_dma_pool = NULL; 4378 4379 return -ENOMEM; 4380 } 4381 4382 /* 4383 * Allocate and attach a frame to each of the commands in cmd_list. 4384 * By making cmd->index as the context instead of the &cmd, we can 4385 * always use 32bit context regardless of the architecture 4386 */ 4387 for (i = 0; i < max_cmd; i++) { 4388 4389 cmd = instance->cmd_list[i]; 4390 4391 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, 4392 GFP_KERNEL, &cmd->frame_phys_addr); 4393 4394 cmd->sense = dma_pool_alloc(instance->sense_dma_pool, 4395 GFP_KERNEL, &cmd->sense_phys_addr); 4396 4397 /* 4398 * megasas_teardown_frame_pool() takes care of freeing 4399 * whatever has been allocated 4400 */ 4401 if (!cmd->frame || !cmd->sense) { 4402 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); 4403 megasas_teardown_frame_pool(instance); 4404 return -ENOMEM; 4405 } 4406 4407 cmd->frame->io.context = cpu_to_le32(cmd->index); 4408 cmd->frame->io.pad_0 = 0; 4409 if ((instance->adapter_type == MFI_SERIES) && reset_devices) 4410 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 4411 } 4412 4413 return 0; 4414} 4415 4416/** 4417 * megasas_free_cmds - Free all the cmds in the free cmd pool 4418 * @instance: Adapter soft state 4419 */ 4420void megasas_free_cmds(struct megasas_instance *instance) 4421{ 4422 int i; 4423 4424 /* First free the MFI frame pool */ 4425 megasas_teardown_frame_pool(instance); 4426 4427 /* Free all the commands in the cmd_list */ 4428 for (i = 0; i < instance->max_mfi_cmds; i++) 4429 4430 kfree(instance->cmd_list[i]); 4431 4432 /* Free the cmd_list buffer itself */ 4433 kfree(instance->cmd_list); 4434 instance->cmd_list = NULL; 4435 4436 INIT_LIST_HEAD(&instance->cmd_pool); 4437} 4438 4439/** 4440 * megasas_alloc_cmds - Allocates the command packets 4441 * @instance: Adapter soft state 4442 * 4443 * Each command that is issued to the FW, whether IO commands from the OS or 4444 * internal commands like IOCTLs, are wrapped in local data structure called 4445 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4446 * the FW. 4447 * 4448 * Each frame has a 32-bit field called context (tag). This context is used 4449 * to get back the megasas_cmd from the frame when a frame gets completed in 4450 * the ISR. Typically the address of the megasas_cmd itself would be used as 4451 * the context. But we wanted to keep the differences between 32 and 64 bit 4452 * systems to the mininum. We always use 32 bit integers for the context. In 4453 * this driver, the 32 bit values are the indices into an array cmd_list. 4454 * This array is used only to look up the megasas_cmd given the context. The 4455 * free commands themselves are maintained in a linked list called cmd_pool. 4456 */ 4457int megasas_alloc_cmds(struct megasas_instance *instance) 4458{ 4459 int i; 4460 int j; 4461 u16 max_cmd; 4462 struct megasas_cmd *cmd; 4463 4464 max_cmd = instance->max_mfi_cmds; 4465 4466 /* 4467 * instance->cmd_list is an array of struct megasas_cmd pointers. 4468 * Allocate the dynamic array first and then allocate individual 4469 * commands. 4470 */ 4471 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4472 4473 if (!instance->cmd_list) { 4474 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4475 return -ENOMEM; 4476 } 4477 4478 for (i = 0; i < max_cmd; i++) { 4479 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4480 GFP_KERNEL); 4481 4482 if (!instance->cmd_list[i]) { 4483 4484 for (j = 0; j < i; j++) 4485 kfree(instance->cmd_list[j]); 4486 4487 kfree(instance->cmd_list); 4488 instance->cmd_list = NULL; 4489 4490 return -ENOMEM; 4491 } 4492 } 4493 4494 for (i = 0; i < max_cmd; i++) { 4495 cmd = instance->cmd_list[i]; 4496 memset(cmd, 0, sizeof(struct megasas_cmd)); 4497 cmd->index = i; 4498 cmd->scmd = NULL; 4499 cmd->instance = instance; 4500 4501 list_add_tail(&cmd->list, &instance->cmd_pool); 4502 } 4503 4504 /* 4505 * Create a frame pool and assign one frame to each cmd 4506 */ 4507 if (megasas_create_frame_pool(instance)) { 4508 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4509 megasas_free_cmds(instance); 4510 return -ENOMEM; 4511 } 4512 4513 return 0; 4514} 4515 4516/* 4517 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4518 * @instance: Adapter soft state 4519 * 4520 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4521 * or FW is not under OCR. 4522 */ 4523inline int 4524dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4525 4526 if (instance->adapter_type == MFI_SERIES) 4527 return KILL_ADAPTER; 4528 else if (instance->unload || 4529 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, 4530 &instance->reset_flags)) 4531 return IGNORE_TIMEOUT; 4532 else 4533 return INITIATE_OCR; 4534} 4535 4536static void 4537megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4538{ 4539 int ret; 4540 struct megasas_cmd *cmd; 4541 struct megasas_dcmd_frame *dcmd; 4542 4543 struct MR_PRIV_DEVICE *mr_device_priv_data; 4544 u16 device_id = 0; 4545 4546 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4547 cmd = megasas_get_cmd(instance); 4548 4549 if (!cmd) { 4550 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4551 return; 4552 } 4553 4554 dcmd = &cmd->frame->dcmd; 4555 4556 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4557 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4558 4559 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4560 dcmd->cmd = MFI_CMD_DCMD; 4561 dcmd->cmd_status = 0xFF; 4562 dcmd->sge_count = 1; 4563 dcmd->flags = MFI_FRAME_DIR_READ; 4564 dcmd->timeout = 0; 4565 dcmd->pad_0 = 0; 4566 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4567 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4568 4569 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, 4570 sizeof(struct MR_PD_INFO)); 4571 4572 if ((instance->adapter_type != MFI_SERIES) && 4573 !instance->mask_interrupts) 4574 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4575 else 4576 ret = megasas_issue_polled(instance, cmd); 4577 4578 switch (ret) { 4579 case DCMD_SUCCESS: 4580 mr_device_priv_data = sdev->hostdata; 4581 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4582 mr_device_priv_data->interface_type = 4583 instance->pd_info->state.ddf.pdType.intf; 4584 break; 4585 4586 case DCMD_TIMEOUT: 4587 4588 switch (dcmd_timeout_ocr_possible(instance)) { 4589 case INITIATE_OCR: 4590 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4591 mutex_unlock(&instance->reset_mutex); 4592 megasas_reset_fusion(instance->host, 4593 MFI_IO_TIMEOUT_OCR); 4594 mutex_lock(&instance->reset_mutex); 4595 break; 4596 case KILL_ADAPTER: 4597 megaraid_sas_kill_hba(instance); 4598 break; 4599 case IGNORE_TIMEOUT: 4600 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4601 __func__, __LINE__); 4602 break; 4603 } 4604 4605 break; 4606 } 4607 4608 if (ret != DCMD_TIMEOUT) 4609 megasas_return_cmd(instance, cmd); 4610 4611 return; 4612} 4613/* 4614 * megasas_get_pd_list_info - Returns FW's pd_list structure 4615 * @instance: Adapter soft state 4616 * @pd_list: pd_list structure 4617 * 4618 * Issues an internal command (DCMD) to get the FW's controller PD 4619 * list structure. This information is mainly used to find out SYSTEM 4620 * supported by the FW. 4621 */ 4622static int 4623megasas_get_pd_list(struct megasas_instance *instance) 4624{ 4625 int ret = 0, pd_index = 0; 4626 struct megasas_cmd *cmd; 4627 struct megasas_dcmd_frame *dcmd; 4628 struct MR_PD_LIST *ci; 4629 struct MR_PD_ADDRESS *pd_addr; 4630 4631 if (instance->pd_list_not_supported) { 4632 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4633 "not supported by firmware\n"); 4634 return ret; 4635 } 4636 4637 ci = instance->pd_list_buf; 4638 4639 cmd = megasas_get_cmd(instance); 4640 4641 if (!cmd) { 4642 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4643 return -ENOMEM; 4644 } 4645 4646 dcmd = &cmd->frame->dcmd; 4647 4648 memset(ci, 0, sizeof(*ci)); 4649 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4650 4651 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4652 dcmd->mbox.b[1] = 0; 4653 dcmd->cmd = MFI_CMD_DCMD; 4654 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4655 dcmd->sge_count = 1; 4656 dcmd->flags = MFI_FRAME_DIR_READ; 4657 dcmd->timeout = 0; 4658 dcmd->pad_0 = 0; 4659 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4660 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4661 4662 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, 4663 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); 4664 4665 if ((instance->adapter_type != MFI_SERIES) && 4666 !instance->mask_interrupts) 4667 ret = megasas_issue_blocked_cmd(instance, cmd, 4668 MFI_IO_TIMEOUT_SECS); 4669 else 4670 ret = megasas_issue_polled(instance, cmd); 4671 4672 switch (ret) { 4673 case DCMD_FAILED: 4674 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4675 "failed/not supported by firmware\n"); 4676 4677 if (instance->adapter_type != MFI_SERIES) 4678 megaraid_sas_kill_hba(instance); 4679 else 4680 instance->pd_list_not_supported = 1; 4681 break; 4682 case DCMD_TIMEOUT: 4683 4684 switch (dcmd_timeout_ocr_possible(instance)) { 4685 case INITIATE_OCR: 4686 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4687 /* 4688 * DCMD failed from AEN path. 4689 * AEN path already hold reset_mutex to avoid PCI access 4690 * while OCR is in progress. 4691 */ 4692 mutex_unlock(&instance->reset_mutex); 4693 megasas_reset_fusion(instance->host, 4694 MFI_IO_TIMEOUT_OCR); 4695 mutex_lock(&instance->reset_mutex); 4696 break; 4697 case KILL_ADAPTER: 4698 megaraid_sas_kill_hba(instance); 4699 break; 4700 case IGNORE_TIMEOUT: 4701 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4702 __func__, __LINE__); 4703 break; 4704 } 4705 4706 break; 4707 4708 case DCMD_SUCCESS: 4709 pd_addr = ci->addr; 4710 if (megasas_dbg_lvl & LD_PD_DEBUG) 4711 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", 4712 __func__, le32_to_cpu(ci->count)); 4713 4714 if ((le32_to_cpu(ci->count) > 4715 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4716 break; 4717 4718 memset(instance->local_pd_list, 0, 4719 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4720 4721 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4722 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4723 le16_to_cpu(pd_addr->deviceId); 4724 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4725 pd_addr->scsiDevType; 4726 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4727 MR_PD_STATE_SYSTEM; 4728 if (megasas_dbg_lvl & LD_PD_DEBUG) 4729 dev_info(&instance->pdev->dev, 4730 "PD%d: targetID: 0x%03x deviceType:0x%x\n", 4731 pd_index, le16_to_cpu(pd_addr->deviceId), 4732 pd_addr->scsiDevType); 4733 pd_addr++; 4734 } 4735 4736 memcpy(instance->pd_list, instance->local_pd_list, 4737 sizeof(instance->pd_list)); 4738 break; 4739 4740 } 4741 4742 if (ret != DCMD_TIMEOUT) 4743 megasas_return_cmd(instance, cmd); 4744 4745 return ret; 4746} 4747 4748/* 4749 * megasas_get_ld_list_info - Returns FW's ld_list structure 4750 * @instance: Adapter soft state 4751 * @ld_list: ld_list structure 4752 * 4753 * Issues an internal command (DCMD) to get the FW's controller PD 4754 * list structure. This information is mainly used to find out SYSTEM 4755 * supported by the FW. 4756 */ 4757static int 4758megasas_get_ld_list(struct megasas_instance *instance) 4759{ 4760 int ret = 0, ld_index = 0, ids = 0; 4761 struct megasas_cmd *cmd; 4762 struct megasas_dcmd_frame *dcmd; 4763 struct MR_LD_LIST *ci; 4764 dma_addr_t ci_h = 0; 4765 u32 ld_count; 4766 4767 ci = instance->ld_list_buf; 4768 ci_h = instance->ld_list_buf_h; 4769 4770 cmd = megasas_get_cmd(instance); 4771 4772 if (!cmd) { 4773 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4774 return -ENOMEM; 4775 } 4776 4777 dcmd = &cmd->frame->dcmd; 4778 4779 memset(ci, 0, sizeof(*ci)); 4780 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4781 4782 if (instance->supportmax256vd) 4783 dcmd->mbox.b[0] = 1; 4784 dcmd->cmd = MFI_CMD_DCMD; 4785 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4786 dcmd->sge_count = 1; 4787 dcmd->flags = MFI_FRAME_DIR_READ; 4788 dcmd->timeout = 0; 4789 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4790 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4791 dcmd->pad_0 = 0; 4792 4793 megasas_set_dma_settings(instance, dcmd, ci_h, 4794 sizeof(struct MR_LD_LIST)); 4795 4796 if ((instance->adapter_type != MFI_SERIES) && 4797 !instance->mask_interrupts) 4798 ret = megasas_issue_blocked_cmd(instance, cmd, 4799 MFI_IO_TIMEOUT_SECS); 4800 else 4801 ret = megasas_issue_polled(instance, cmd); 4802 4803 ld_count = le32_to_cpu(ci->ldCount); 4804 4805 switch (ret) { 4806 case DCMD_FAILED: 4807 megaraid_sas_kill_hba(instance); 4808 break; 4809 case DCMD_TIMEOUT: 4810 4811 switch (dcmd_timeout_ocr_possible(instance)) { 4812 case INITIATE_OCR: 4813 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4814 /* 4815 * DCMD failed from AEN path. 4816 * AEN path already hold reset_mutex to avoid PCI access 4817 * while OCR is in progress. 4818 */ 4819 mutex_unlock(&instance->reset_mutex); 4820 megasas_reset_fusion(instance->host, 4821 MFI_IO_TIMEOUT_OCR); 4822 mutex_lock(&instance->reset_mutex); 4823 break; 4824 case KILL_ADAPTER: 4825 megaraid_sas_kill_hba(instance); 4826 break; 4827 case IGNORE_TIMEOUT: 4828 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4829 __func__, __LINE__); 4830 break; 4831 } 4832 4833 break; 4834 4835 case DCMD_SUCCESS: 4836 if (megasas_dbg_lvl & LD_PD_DEBUG) 4837 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4838 __func__, ld_count); 4839 4840 if (ld_count > instance->fw_supported_vd_count) 4841 break; 4842 4843 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4844 4845 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4846 if (ci->ldList[ld_index].state != 0) { 4847 ids = ci->ldList[ld_index].ref.targetId; 4848 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4849 if (megasas_dbg_lvl & LD_PD_DEBUG) 4850 dev_info(&instance->pdev->dev, 4851 "LD%d: targetID: 0x%03x\n", 4852 ld_index, ids); 4853 } 4854 } 4855 4856 break; 4857 } 4858 4859 if (ret != DCMD_TIMEOUT) 4860 megasas_return_cmd(instance, cmd); 4861 4862 return ret; 4863} 4864 4865/** 4866 * megasas_ld_list_query - Returns FW's ld_list structure 4867 * @instance: Adapter soft state 4868 * @query_type: ld_list structure type 4869 * 4870 * Issues an internal command (DCMD) to get the FW's controller PD 4871 * list structure. This information is mainly used to find out SYSTEM 4872 * supported by the FW. 4873 */ 4874static int 4875megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4876{ 4877 int ret = 0, ld_index = 0, ids = 0; 4878 struct megasas_cmd *cmd; 4879 struct megasas_dcmd_frame *dcmd; 4880 struct MR_LD_TARGETID_LIST *ci; 4881 dma_addr_t ci_h = 0; 4882 u32 tgtid_count; 4883 4884 ci = instance->ld_targetid_list_buf; 4885 ci_h = instance->ld_targetid_list_buf_h; 4886 4887 cmd = megasas_get_cmd(instance); 4888 4889 if (!cmd) { 4890 dev_warn(&instance->pdev->dev, 4891 "megasas_ld_list_query: Failed to get cmd\n"); 4892 return -ENOMEM; 4893 } 4894 4895 dcmd = &cmd->frame->dcmd; 4896 4897 memset(ci, 0, sizeof(*ci)); 4898 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4899 4900 dcmd->mbox.b[0] = query_type; 4901 if (instance->supportmax256vd) 4902 dcmd->mbox.b[2] = 1; 4903 4904 dcmd->cmd = MFI_CMD_DCMD; 4905 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4906 dcmd->sge_count = 1; 4907 dcmd->flags = MFI_FRAME_DIR_READ; 4908 dcmd->timeout = 0; 4909 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4910 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4911 dcmd->pad_0 = 0; 4912 4913 megasas_set_dma_settings(instance, dcmd, ci_h, 4914 sizeof(struct MR_LD_TARGETID_LIST)); 4915 4916 if ((instance->adapter_type != MFI_SERIES) && 4917 !instance->mask_interrupts) 4918 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4919 else 4920 ret = megasas_issue_polled(instance, cmd); 4921 4922 switch (ret) { 4923 case DCMD_FAILED: 4924 dev_info(&instance->pdev->dev, 4925 "DCMD not supported by firmware - %s %d\n", 4926 __func__, __LINE__); 4927 ret = megasas_get_ld_list(instance); 4928 break; 4929 case DCMD_TIMEOUT: 4930 switch (dcmd_timeout_ocr_possible(instance)) { 4931 case INITIATE_OCR: 4932 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4933 /* 4934 * DCMD failed from AEN path. 4935 * AEN path already hold reset_mutex to avoid PCI access 4936 * while OCR is in progress. 4937 */ 4938 mutex_unlock(&instance->reset_mutex); 4939 megasas_reset_fusion(instance->host, 4940 MFI_IO_TIMEOUT_OCR); 4941 mutex_lock(&instance->reset_mutex); 4942 break; 4943 case KILL_ADAPTER: 4944 megaraid_sas_kill_hba(instance); 4945 break; 4946 case IGNORE_TIMEOUT: 4947 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4948 __func__, __LINE__); 4949 break; 4950 } 4951 4952 break; 4953 case DCMD_SUCCESS: 4954 tgtid_count = le32_to_cpu(ci->count); 4955 4956 if (megasas_dbg_lvl & LD_PD_DEBUG) 4957 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4958 __func__, tgtid_count); 4959 4960 if ((tgtid_count > (instance->fw_supported_vd_count))) 4961 break; 4962 4963 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4964 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4965 ids = ci->targetId[ld_index]; 4966 instance->ld_ids[ids] = ci->targetId[ld_index]; 4967 if (megasas_dbg_lvl & LD_PD_DEBUG) 4968 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", 4969 ld_index, ci->targetId[ld_index]); 4970 } 4971 4972 break; 4973 } 4974 4975 if (ret != DCMD_TIMEOUT) 4976 megasas_return_cmd(instance, cmd); 4977 4978 return ret; 4979} 4980 4981/** 4982 * megasas_host_device_list_query 4983 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET 4984 * dcmd.mbox - reserved 4985 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure 4986 * Desc: This DCMD will return the combined device list 4987 * Status: MFI_STAT_OK - List returned successfully 4988 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been 4989 * disabled 4990 * @instance: Adapter soft state 4991 * @is_probe: Driver probe check 4992 * Return: 0 if DCMD succeeded 4993 * non-zero if failed 4994 */ 4995static int 4996megasas_host_device_list_query(struct megasas_instance *instance, 4997 bool is_probe) 4998{ 4999 int ret, i, target_id; 5000 struct megasas_cmd *cmd; 5001 struct megasas_dcmd_frame *dcmd; 5002 struct MR_HOST_DEVICE_LIST *ci; 5003 u32 count; 5004 dma_addr_t ci_h; 5005 5006 ci = instance->host_device_list_buf; 5007 ci_h = instance->host_device_list_buf_h; 5008 5009 cmd = megasas_get_cmd(instance); 5010 5011 if (!cmd) { 5012 dev_warn(&instance->pdev->dev, 5013 "%s: failed to get cmd\n", 5014 __func__); 5015 return -ENOMEM; 5016 } 5017 5018 dcmd = &cmd->frame->dcmd; 5019 5020 memset(ci, 0, sizeof(*ci)); 5021 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5022 5023 dcmd->mbox.b[0] = is_probe ? 0 : 1; 5024 dcmd->cmd = MFI_CMD_DCMD; 5025 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5026 dcmd->sge_count = 1; 5027 dcmd->flags = MFI_FRAME_DIR_READ; 5028 dcmd->timeout = 0; 5029 dcmd->pad_0 = 0; 5030 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); 5031 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); 5032 5033 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); 5034 5035 if (!instance->mask_interrupts) { 5036 ret = megasas_issue_blocked_cmd(instance, cmd, 5037 MFI_IO_TIMEOUT_SECS); 5038 } else { 5039 ret = megasas_issue_polled(instance, cmd); 5040 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5041 } 5042 5043 switch (ret) { 5044 case DCMD_SUCCESS: 5045 /* Fill the internal pd_list and ld_ids array based on 5046 * targetIds returned by FW 5047 */ 5048 count = le32_to_cpu(ci->count); 5049 5050 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) 5051 break; 5052 5053 if (megasas_dbg_lvl & LD_PD_DEBUG) 5054 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", 5055 __func__, count); 5056 5057 memset(instance->local_pd_list, 0, 5058 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 5059 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 5060 for (i = 0; i < count; i++) { 5061 target_id = le16_to_cpu(ci->host_device_list[i].target_id); 5062 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { 5063 instance->local_pd_list[target_id].tid = target_id; 5064 instance->local_pd_list[target_id].driveType = 5065 ci->host_device_list[i].scsi_type; 5066 instance->local_pd_list[target_id].driveState = 5067 MR_PD_STATE_SYSTEM; 5068 if (megasas_dbg_lvl & LD_PD_DEBUG) 5069 dev_info(&instance->pdev->dev, 5070 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", 5071 i, target_id, ci->host_device_list[i].scsi_type); 5072 } else { 5073 instance->ld_ids[target_id] = target_id; 5074 if (megasas_dbg_lvl & LD_PD_DEBUG) 5075 dev_info(&instance->pdev->dev, 5076 "Device %d: LD targetID: 0x%03x\n", 5077 i, target_id); 5078 } 5079 } 5080 5081 memcpy(instance->pd_list, instance->local_pd_list, 5082 sizeof(instance->pd_list)); 5083 break; 5084 5085 case DCMD_TIMEOUT: 5086 switch (dcmd_timeout_ocr_possible(instance)) { 5087 case INITIATE_OCR: 5088 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5089 mutex_unlock(&instance->reset_mutex); 5090 megasas_reset_fusion(instance->host, 5091 MFI_IO_TIMEOUT_OCR); 5092 mutex_lock(&instance->reset_mutex); 5093 break; 5094 case KILL_ADAPTER: 5095 megaraid_sas_kill_hba(instance); 5096 break; 5097 case IGNORE_TIMEOUT: 5098 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5099 __func__, __LINE__); 5100 break; 5101 } 5102 break; 5103 case DCMD_FAILED: 5104 dev_err(&instance->pdev->dev, 5105 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", 5106 __func__); 5107 break; 5108 } 5109 5110 if (ret != DCMD_TIMEOUT) 5111 megasas_return_cmd(instance, cmd); 5112 5113 return ret; 5114} 5115 5116/* 5117 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 5118 * instance : Controller's instance 5119*/ 5120static void megasas_update_ext_vd_details(struct megasas_instance *instance) 5121{ 5122 struct fusion_context *fusion; 5123 u32 ventura_map_sz = 0; 5124 5125 fusion = instance->ctrl_context; 5126 /* For MFI based controllers return dummy success */ 5127 if (!fusion) 5128 return; 5129 5130 instance->supportmax256vd = 5131 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; 5132 /* Below is additional check to address future FW enhancement */ 5133 if (instance->ctrl_info_buf->max_lds > 64) 5134 instance->supportmax256vd = 1; 5135 5136 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 5137 * MEGASAS_MAX_DEV_PER_CHANNEL; 5138 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 5139 * MEGASAS_MAX_DEV_PER_CHANNEL; 5140 if (instance->supportmax256vd) { 5141 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 5142 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5143 } else { 5144 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5145 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5146 } 5147 5148 dev_info(&instance->pdev->dev, 5149 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", 5150 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, 5151 instance->ctrl_info_buf->max_lds); 5152 5153 if (instance->max_raid_mapsize) { 5154 ventura_map_sz = instance->max_raid_mapsize * 5155 MR_MIN_MAP_SIZE; /* 64k */ 5156 fusion->current_map_sz = ventura_map_sz; 5157 fusion->max_map_sz = ventura_map_sz; 5158 } else { 5159 fusion->old_map_sz = 5160 struct_size_t(struct MR_FW_RAID_MAP, ldSpanMap, 5161 instance->fw_supported_vd_count); 5162 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 5163 5164 fusion->max_map_sz = 5165 max(fusion->old_map_sz, fusion->new_map_sz); 5166 5167 if (instance->supportmax256vd) 5168 fusion->current_map_sz = fusion->new_map_sz; 5169 else 5170 fusion->current_map_sz = fusion->old_map_sz; 5171 } 5172 /* irrespective of FW raid maps, driver raid map is constant */ 5173 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 5174} 5175 5176/* 5177 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 5178 * dcmd.hdr.length - number of bytes to read 5179 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES 5180 * Desc: Fill in snapdump properties 5181 * Status: MFI_STAT_OK- Command successful 5182 */ 5183void megasas_get_snapdump_properties(struct megasas_instance *instance) 5184{ 5185 int ret = 0; 5186 struct megasas_cmd *cmd; 5187 struct megasas_dcmd_frame *dcmd; 5188 struct MR_SNAPDUMP_PROPERTIES *ci; 5189 dma_addr_t ci_h = 0; 5190 5191 ci = instance->snapdump_prop; 5192 ci_h = instance->snapdump_prop_h; 5193 5194 if (!ci) 5195 return; 5196 5197 cmd = megasas_get_cmd(instance); 5198 5199 if (!cmd) { 5200 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); 5201 return; 5202 } 5203 5204 dcmd = &cmd->frame->dcmd; 5205 5206 memset(ci, 0, sizeof(*ci)); 5207 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5208 5209 dcmd->cmd = MFI_CMD_DCMD; 5210 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5211 dcmd->sge_count = 1; 5212 dcmd->flags = MFI_FRAME_DIR_READ; 5213 dcmd->timeout = 0; 5214 dcmd->pad_0 = 0; 5215 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5216 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); 5217 5218 megasas_set_dma_settings(instance, dcmd, ci_h, 5219 sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5220 5221 if (!instance->mask_interrupts) { 5222 ret = megasas_issue_blocked_cmd(instance, cmd, 5223 MFI_IO_TIMEOUT_SECS); 5224 } else { 5225 ret = megasas_issue_polled(instance, cmd); 5226 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5227 } 5228 5229 switch (ret) { 5230 case DCMD_SUCCESS: 5231 instance->snapdump_wait_time = 5232 min_t(u8, ci->trigger_min_num_sec_before_ocr, 5233 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); 5234 break; 5235 5236 case DCMD_TIMEOUT: 5237 switch (dcmd_timeout_ocr_possible(instance)) { 5238 case INITIATE_OCR: 5239 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5240 mutex_unlock(&instance->reset_mutex); 5241 megasas_reset_fusion(instance->host, 5242 MFI_IO_TIMEOUT_OCR); 5243 mutex_lock(&instance->reset_mutex); 5244 break; 5245 case KILL_ADAPTER: 5246 megaraid_sas_kill_hba(instance); 5247 break; 5248 case IGNORE_TIMEOUT: 5249 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5250 __func__, __LINE__); 5251 break; 5252 } 5253 } 5254 5255 if (ret != DCMD_TIMEOUT) 5256 megasas_return_cmd(instance, cmd); 5257} 5258 5259/** 5260 * megasas_get_ctrl_info - Returns FW's controller structure 5261 * @instance: Adapter soft state 5262 * 5263 * Issues an internal command (DCMD) to get the FW's controller structure. 5264 * This information is mainly used to find out the maximum IO transfer per 5265 * command supported by the FW. 5266 */ 5267int 5268megasas_get_ctrl_info(struct megasas_instance *instance) 5269{ 5270 int ret = 0; 5271 struct megasas_cmd *cmd; 5272 struct megasas_dcmd_frame *dcmd; 5273 struct megasas_ctrl_info *ci; 5274 dma_addr_t ci_h = 0; 5275 5276 ci = instance->ctrl_info_buf; 5277 ci_h = instance->ctrl_info_buf_h; 5278 5279 cmd = megasas_get_cmd(instance); 5280 5281 if (!cmd) { 5282 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 5283 return -ENOMEM; 5284 } 5285 5286 dcmd = &cmd->frame->dcmd; 5287 5288 memset(ci, 0, sizeof(*ci)); 5289 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5290 5291 dcmd->cmd = MFI_CMD_DCMD; 5292 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5293 dcmd->sge_count = 1; 5294 dcmd->flags = MFI_FRAME_DIR_READ; 5295 dcmd->timeout = 0; 5296 dcmd->pad_0 = 0; 5297 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 5298 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 5299 dcmd->mbox.b[0] = 1; 5300 5301 megasas_set_dma_settings(instance, dcmd, ci_h, 5302 sizeof(struct megasas_ctrl_info)); 5303 5304 if ((instance->adapter_type != MFI_SERIES) && 5305 !instance->mask_interrupts) { 5306 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5307 } else { 5308 ret = megasas_issue_polled(instance, cmd); 5309 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5310 } 5311 5312 switch (ret) { 5313 case DCMD_SUCCESS: 5314 /* Save required controller information in 5315 * CPU endianness format. 5316 */ 5317 le32_to_cpus((u32 *)&ci->properties.OnOffProperties); 5318 le16_to_cpus((u16 *)&ci->properties.on_off_properties2); 5319 le32_to_cpus((u32 *)&ci->adapterOperations2); 5320 le32_to_cpus((u32 *)&ci->adapterOperations3); 5321 le16_to_cpus((u16 *)&ci->adapter_operations4); 5322 le32_to_cpus((u32 *)&ci->adapter_operations5); 5323 5324 /* Update the latest Ext VD info. 5325 * From Init path, store current firmware details. 5326 * From OCR path, detect any firmware properties changes. 5327 * in case of Firmware upgrade without system reboot. 5328 */ 5329 megasas_update_ext_vd_details(instance); 5330 instance->support_seqnum_jbod_fp = 5331 ci->adapterOperations3.useSeqNumJbodFP; 5332 instance->support_morethan256jbod = 5333 ci->adapter_operations4.support_pd_map_target_id; 5334 instance->support_nvme_passthru = 5335 ci->adapter_operations4.support_nvme_passthru; 5336 instance->support_pci_lane_margining = 5337 ci->adapter_operations5.support_pci_lane_margining; 5338 instance->task_abort_tmo = ci->TaskAbortTO; 5339 instance->max_reset_tmo = ci->MaxResetTO; 5340 5341 /*Check whether controller is iMR or MR */ 5342 instance->is_imr = (ci->memory_size ? 0 : 1); 5343 5344 instance->snapdump_wait_time = 5345 (ci->properties.on_off_properties2.enable_snap_dump ? 5346 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); 5347 5348 instance->enable_fw_dev_list = 5349 ci->properties.on_off_properties2.enable_fw_dev_list; 5350 5351 dev_info(&instance->pdev->dev, 5352 "controller type\t: %s(%dMB)\n", 5353 instance->is_imr ? "iMR" : "MR", 5354 le16_to_cpu(ci->memory_size)); 5355 5356 instance->disableOnlineCtrlReset = 5357 ci->properties.OnOffProperties.disableOnlineCtrlReset; 5358 instance->secure_jbod_support = 5359 ci->adapterOperations3.supportSecurityonJBOD; 5360 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 5361 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 5362 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 5363 instance->secure_jbod_support ? "Yes" : "No"); 5364 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", 5365 instance->support_nvme_passthru ? "Yes" : "No"); 5366 dev_info(&instance->pdev->dev, 5367 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", 5368 instance->task_abort_tmo, instance->max_reset_tmo); 5369 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", 5370 instance->support_seqnum_jbod_fp ? "Yes" : "No"); 5371 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", 5372 instance->support_pci_lane_margining ? "Yes" : "No"); 5373 5374 break; 5375 5376 case DCMD_TIMEOUT: 5377 switch (dcmd_timeout_ocr_possible(instance)) { 5378 case INITIATE_OCR: 5379 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5380 mutex_unlock(&instance->reset_mutex); 5381 megasas_reset_fusion(instance->host, 5382 MFI_IO_TIMEOUT_OCR); 5383 mutex_lock(&instance->reset_mutex); 5384 break; 5385 case KILL_ADAPTER: 5386 megaraid_sas_kill_hba(instance); 5387 break; 5388 case IGNORE_TIMEOUT: 5389 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5390 __func__, __LINE__); 5391 break; 5392 } 5393 break; 5394 case DCMD_FAILED: 5395 megaraid_sas_kill_hba(instance); 5396 break; 5397 5398 } 5399 5400 if (ret != DCMD_TIMEOUT) 5401 megasas_return_cmd(instance, cmd); 5402 5403 return ret; 5404} 5405 5406/* 5407 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 5408 * to firmware 5409 * 5410 * @instance: Adapter soft state 5411 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 5412 MR_CRASH_BUF_TURN_OFF = 0 5413 MR_CRASH_BUF_TURN_ON = 1 5414 * @return 0 on success non-zero on failure. 5415 * Issues an internal command (DCMD) to set parameters for crash dump feature. 5416 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 5417 * that driver supports crash dump feature. This DCMD will be sent only if 5418 * crash dump feature is supported by the FW. 5419 * 5420 */ 5421int megasas_set_crash_dump_params(struct megasas_instance *instance, 5422 u8 crash_buf_state) 5423{ 5424 int ret = 0; 5425 struct megasas_cmd *cmd; 5426 struct megasas_dcmd_frame *dcmd; 5427 5428 cmd = megasas_get_cmd(instance); 5429 5430 if (!cmd) { 5431 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 5432 return -ENOMEM; 5433 } 5434 5435 5436 dcmd = &cmd->frame->dcmd; 5437 5438 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5439 dcmd->mbox.b[0] = crash_buf_state; 5440 dcmd->cmd = MFI_CMD_DCMD; 5441 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5442 dcmd->sge_count = 1; 5443 dcmd->flags = MFI_FRAME_DIR_NONE; 5444 dcmd->timeout = 0; 5445 dcmd->pad_0 = 0; 5446 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 5447 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 5448 5449 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, 5450 CRASH_DMA_BUF_SIZE); 5451 5452 if ((instance->adapter_type != MFI_SERIES) && 5453 !instance->mask_interrupts) 5454 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5455 else 5456 ret = megasas_issue_polled(instance, cmd); 5457 5458 if (ret == DCMD_TIMEOUT) { 5459 switch (dcmd_timeout_ocr_possible(instance)) { 5460 case INITIATE_OCR: 5461 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5462 megasas_reset_fusion(instance->host, 5463 MFI_IO_TIMEOUT_OCR); 5464 break; 5465 case KILL_ADAPTER: 5466 megaraid_sas_kill_hba(instance); 5467 break; 5468 case IGNORE_TIMEOUT: 5469 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5470 __func__, __LINE__); 5471 break; 5472 } 5473 } else 5474 megasas_return_cmd(instance, cmd); 5475 5476 return ret; 5477} 5478 5479/** 5480 * megasas_issue_init_mfi - Initializes the FW 5481 * @instance: Adapter soft state 5482 * 5483 * Issues the INIT MFI cmd 5484 */ 5485static int 5486megasas_issue_init_mfi(struct megasas_instance *instance) 5487{ 5488 __le32 context; 5489 struct megasas_cmd *cmd; 5490 struct megasas_init_frame *init_frame; 5491 struct megasas_init_queue_info *initq_info; 5492 dma_addr_t init_frame_h; 5493 dma_addr_t initq_info_h; 5494 5495 /* 5496 * Prepare a init frame. Note the init frame points to queue info 5497 * structure. Each frame has SGL allocated after first 64 bytes. For 5498 * this frame - since we don't need any SGL - we use SGL's space as 5499 * queue info structure 5500 * 5501 * We will not get a NULL command below. We just created the pool. 5502 */ 5503 cmd = megasas_get_cmd(instance); 5504 5505 init_frame = (struct megasas_init_frame *)cmd->frame; 5506 initq_info = (struct megasas_init_queue_info *) 5507 ((unsigned long)init_frame + 64); 5508 5509 init_frame_h = cmd->frame_phys_addr; 5510 initq_info_h = init_frame_h + 64; 5511 5512 context = init_frame->context; 5513 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 5514 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 5515 init_frame->context = context; 5516 5517 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 5518 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 5519 5520 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 5521 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 5522 5523 init_frame->cmd = MFI_CMD_INIT; 5524 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 5525 init_frame->queue_info_new_phys_addr_lo = 5526 cpu_to_le32(lower_32_bits(initq_info_h)); 5527 init_frame->queue_info_new_phys_addr_hi = 5528 cpu_to_le32(upper_32_bits(initq_info_h)); 5529 5530 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 5531 5532 /* 5533 * disable the intr before firing the init frame to FW 5534 */ 5535 instance->instancet->disable_intr(instance); 5536 5537 /* 5538 * Issue the init frame in polled mode 5539 */ 5540 5541 if (megasas_issue_polled(instance, cmd)) { 5542 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 5543 megasas_return_cmd(instance, cmd); 5544 goto fail_fw_init; 5545 } 5546 5547 megasas_return_cmd(instance, cmd); 5548 5549 return 0; 5550 5551fail_fw_init: 5552 return -EINVAL; 5553} 5554 5555static u32 5556megasas_init_adapter_mfi(struct megasas_instance *instance) 5557{ 5558 u32 context_sz; 5559 u32 reply_q_sz; 5560 5561 /* 5562 * Get various operational parameters from status register 5563 */ 5564 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; 5565 /* 5566 * Reduce the max supported cmds by 1. This is to ensure that the 5567 * reply_q_sz (1 more than the max cmd that driver may send) 5568 * does not exceed max cmds that the FW can support 5569 */ 5570 instance->max_fw_cmds = instance->max_fw_cmds-1; 5571 instance->max_mfi_cmds = instance->max_fw_cmds; 5572 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> 5573 0x10; 5574 /* 5575 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 5576 * are reserved for IOCTL + driver's internal DCMDs. 5577 */ 5578 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 5579 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 5580 instance->max_scsi_cmds = (instance->max_fw_cmds - 5581 MEGASAS_SKINNY_INT_CMDS); 5582 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 5583 } else { 5584 instance->max_scsi_cmds = (instance->max_fw_cmds - 5585 MEGASAS_INT_CMDS); 5586 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 5587 } 5588 5589 instance->cur_can_queue = instance->max_scsi_cmds; 5590 /* 5591 * Create a pool of commands 5592 */ 5593 if (megasas_alloc_cmds(instance)) 5594 goto fail_alloc_cmds; 5595 5596 /* 5597 * Allocate memory for reply queue. Length of reply queue should 5598 * be _one_ more than the maximum commands handled by the firmware. 5599 * 5600 * Note: When FW completes commands, it places corresponding contex 5601 * values in this circular reply queue. This circular queue is a fairly 5602 * typical producer-consumer queue. FW is the producer (of completed 5603 * commands) and the driver is the consumer. 5604 */ 5605 context_sz = sizeof(u32); 5606 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 5607 5608 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, 5609 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); 5610 5611 if (!instance->reply_queue) { 5612 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 5613 goto fail_reply_queue; 5614 } 5615 5616 if (megasas_issue_init_mfi(instance)) 5617 goto fail_fw_init; 5618 5619 if (megasas_get_ctrl_info(instance)) { 5620 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 5621 "Fail from %s %d\n", instance->unique_id, 5622 __func__, __LINE__); 5623 goto fail_fw_init; 5624 } 5625 5626 instance->fw_support_ieee = 0; 5627 instance->fw_support_ieee = 5628 (instance->instancet->read_fw_status_reg(instance) & 5629 0x04000000); 5630 5631 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 5632 instance->fw_support_ieee); 5633 5634 if (instance->fw_support_ieee) 5635 instance->flag_ieee = 1; 5636 5637 return 0; 5638 5639fail_fw_init: 5640 5641 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 5642 instance->reply_queue, instance->reply_queue_h); 5643fail_reply_queue: 5644 megasas_free_cmds(instance); 5645 5646fail_alloc_cmds: 5647 return 1; 5648} 5649 5650static 5651void megasas_setup_irq_poll(struct megasas_instance *instance) 5652{ 5653 struct megasas_irq_context *irq_ctx; 5654 u32 count, i; 5655 5656 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5657 5658 /* Initialize IRQ poll */ 5659 for (i = 0; i < count; i++) { 5660 irq_ctx = &instance->irq_context[i]; 5661 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); 5662 irq_ctx->irq_poll_scheduled = false; 5663 irq_poll_init(&irq_ctx->irqpoll, 5664 instance->threshold_reply_count, 5665 megasas_irqpoll); 5666 } 5667} 5668 5669/* 5670 * megasas_setup_irqs_ioapic - register legacy interrupts. 5671 * @instance: Adapter soft state 5672 * 5673 * Do not enable interrupt, only setup ISRs. 5674 * 5675 * Return 0 on success. 5676 */ 5677static int 5678megasas_setup_irqs_ioapic(struct megasas_instance *instance) 5679{ 5680 struct pci_dev *pdev; 5681 5682 pdev = instance->pdev; 5683 instance->irq_context[0].instance = instance; 5684 instance->irq_context[0].MSIxIndex = 0; 5685 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u", 5686 "megasas", instance->host->host_no); 5687 if (request_irq(pci_irq_vector(pdev, 0), 5688 instance->instancet->service_isr, IRQF_SHARED, 5689 instance->irq_context->name, &instance->irq_context[0])) { 5690 dev_err(&instance->pdev->dev, 5691 "Failed to register IRQ from %s %d\n", 5692 __func__, __LINE__); 5693 return -1; 5694 } 5695 instance->perf_mode = MR_LATENCY_PERF_MODE; 5696 instance->low_latency_index_start = 0; 5697 return 0; 5698} 5699 5700/** 5701 * megasas_setup_irqs_msix - register MSI-x interrupts. 5702 * @instance: Adapter soft state 5703 * @is_probe: Driver probe check 5704 * 5705 * Do not enable interrupt, only setup ISRs. 5706 * 5707 * Return 0 on success. 5708 */ 5709static int 5710megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5711{ 5712 int i, j; 5713 struct pci_dev *pdev; 5714 5715 pdev = instance->pdev; 5716 5717 /* Try MSI-x */ 5718 for (i = 0; i < instance->msix_vectors; i++) { 5719 instance->irq_context[i].instance = instance; 5720 instance->irq_context[i].MSIxIndex = i; 5721 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u", 5722 "megasas", instance->host->host_no, i); 5723 if (request_irq(pci_irq_vector(pdev, i), 5724 instance->instancet->service_isr, 0, instance->irq_context[i].name, 5725 &instance->irq_context[i])) { 5726 dev_err(&instance->pdev->dev, 5727 "Failed to register IRQ for vector %d.\n", i); 5728 for (j = 0; j < i; j++) { 5729 if (j < instance->low_latency_index_start) 5730 irq_update_affinity_hint( 5731 pci_irq_vector(pdev, j), NULL); 5732 free_irq(pci_irq_vector(pdev, j), 5733 &instance->irq_context[j]); 5734 } 5735 /* Retry irq register for IO_APIC*/ 5736 instance->msix_vectors = 0; 5737 instance->msix_load_balance = false; 5738 if (is_probe) { 5739 pci_free_irq_vectors(instance->pdev); 5740 return megasas_setup_irqs_ioapic(instance); 5741 } else { 5742 return -1; 5743 } 5744 } 5745 } 5746 5747 return 0; 5748} 5749 5750/* 5751 * megasas_destroy_irqs- unregister interrupts. 5752 * @instance: Adapter soft state 5753 * return: void 5754 */ 5755static void 5756megasas_destroy_irqs(struct megasas_instance *instance) { 5757 5758 int i; 5759 int count; 5760 struct megasas_irq_context *irq_ctx; 5761 5762 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5763 if (instance->adapter_type != MFI_SERIES) { 5764 for (i = 0; i < count; i++) { 5765 irq_ctx = &instance->irq_context[i]; 5766 irq_poll_disable(&irq_ctx->irqpoll); 5767 } 5768 } 5769 5770 if (instance->msix_vectors) 5771 for (i = 0; i < instance->msix_vectors; i++) { 5772 if (i < instance->low_latency_index_start) 5773 irq_update_affinity_hint( 5774 pci_irq_vector(instance->pdev, i), NULL); 5775 free_irq(pci_irq_vector(instance->pdev, i), 5776 &instance->irq_context[i]); 5777 } 5778 else 5779 free_irq(pci_irq_vector(instance->pdev, 0), 5780 &instance->irq_context[0]); 5781} 5782 5783/** 5784 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5785 * @instance: Adapter soft state 5786 * 5787 * Return 0 on success. 5788 */ 5789void 5790megasas_setup_jbod_map(struct megasas_instance *instance) 5791{ 5792 int i; 5793 struct fusion_context *fusion = instance->ctrl_context; 5794 size_t pd_seq_map_sz; 5795 5796 pd_seq_map_sz = struct_size_t(struct MR_PD_CFG_SEQ_NUM_SYNC, seq, 5797 MAX_PHYSICAL_DEVICES); 5798 5799 instance->use_seqnum_jbod_fp = 5800 instance->support_seqnum_jbod_fp; 5801 if (reset_devices || !fusion || 5802 !instance->support_seqnum_jbod_fp) { 5803 dev_info(&instance->pdev->dev, 5804 "JBOD sequence map is disabled %s %d\n", 5805 __func__, __LINE__); 5806 instance->use_seqnum_jbod_fp = false; 5807 return; 5808 } 5809 5810 if (fusion->pd_seq_sync[0]) 5811 goto skip_alloc; 5812 5813 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5814 fusion->pd_seq_sync[i] = dma_alloc_coherent 5815 (&instance->pdev->dev, pd_seq_map_sz, 5816 &fusion->pd_seq_phys[i], GFP_KERNEL); 5817 if (!fusion->pd_seq_sync[i]) { 5818 dev_err(&instance->pdev->dev, 5819 "Failed to allocate memory from %s %d\n", 5820 __func__, __LINE__); 5821 if (i == 1) { 5822 dma_free_coherent(&instance->pdev->dev, 5823 pd_seq_map_sz, fusion->pd_seq_sync[0], 5824 fusion->pd_seq_phys[0]); 5825 fusion->pd_seq_sync[0] = NULL; 5826 } 5827 instance->use_seqnum_jbod_fp = false; 5828 return; 5829 } 5830 } 5831 5832skip_alloc: 5833 if (!megasas_sync_pd_seq_num(instance, false) && 5834 !megasas_sync_pd_seq_num(instance, true)) 5835 instance->use_seqnum_jbod_fp = true; 5836 else 5837 instance->use_seqnum_jbod_fp = false; 5838} 5839 5840static void megasas_setup_reply_map(struct megasas_instance *instance) 5841{ 5842 const struct cpumask *mask; 5843 unsigned int queue, cpu, low_latency_index_start; 5844 5845 low_latency_index_start = instance->low_latency_index_start; 5846 5847 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { 5848 mask = pci_irq_get_affinity(instance->pdev, queue); 5849 if (!mask) 5850 goto fallback; 5851 5852 for_each_cpu(cpu, mask) 5853 instance->reply_map[cpu] = queue; 5854 } 5855 return; 5856 5857fallback: 5858 queue = low_latency_index_start; 5859 for_each_possible_cpu(cpu) { 5860 instance->reply_map[cpu] = queue; 5861 if (queue == (instance->msix_vectors - 1)) 5862 queue = low_latency_index_start; 5863 else 5864 queue++; 5865 } 5866} 5867 5868/** 5869 * megasas_get_device_list - Get the PD and LD device list from FW. 5870 * @instance: Adapter soft state 5871 * @return: Success or failure 5872 * 5873 * Issue DCMDs to Firmware to get the PD and LD list. 5874 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 5875 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 5876 */ 5877static 5878int megasas_get_device_list(struct megasas_instance *instance) 5879{ 5880 if (instance->enable_fw_dev_list) { 5881 if (megasas_host_device_list_query(instance, true)) 5882 return FAILED; 5883 } else { 5884 if (megasas_get_pd_list(instance) < 0) { 5885 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5886 return FAILED; 5887 } 5888 5889 if (megasas_ld_list_query(instance, 5890 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { 5891 dev_err(&instance->pdev->dev, "failed to get LD list\n"); 5892 return FAILED; 5893 } 5894 } 5895 5896 return SUCCESS; 5897} 5898 5899/** 5900 * megasas_set_high_iops_queue_affinity_and_hint - Set affinity and hint 5901 * for high IOPS queues 5902 * @instance: Adapter soft state 5903 * return: void 5904 */ 5905static inline void 5906megasas_set_high_iops_queue_affinity_and_hint(struct megasas_instance *instance) 5907{ 5908 int i; 5909 unsigned int irq; 5910 const struct cpumask *mask; 5911 5912 if (instance->perf_mode == MR_BALANCED_PERF_MODE) { 5913 int nid = dev_to_node(&instance->pdev->dev); 5914 5915 if (nid == NUMA_NO_NODE) 5916 nid = 0; 5917 mask = cpumask_of_node(nid); 5918 5919 for (i = 0; i < instance->low_latency_index_start; i++) { 5920 irq = pci_irq_vector(instance->pdev, i); 5921 irq_set_affinity_and_hint(irq, mask); 5922 } 5923 } 5924} 5925 5926static int 5927__megasas_alloc_irq_vectors(struct megasas_instance *instance) 5928{ 5929 int i, irq_flags; 5930 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; 5931 struct irq_affinity *descp = &desc; 5932 5933 irq_flags = PCI_IRQ_MSIX; 5934 5935 if (instance->smp_affinity_enable) 5936 irq_flags |= PCI_IRQ_AFFINITY | PCI_IRQ_ALL_TYPES; 5937 else 5938 descp = NULL; 5939 5940 /* Do not allocate msix vectors for poll_queues. 5941 * msix_vectors is always within a range of FW supported reply queue. 5942 */ 5943 i = pci_alloc_irq_vectors_affinity(instance->pdev, 5944 instance->low_latency_index_start, 5945 instance->msix_vectors - instance->iopoll_q_count, irq_flags, descp); 5946 5947 return i; 5948} 5949 5950/** 5951 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors 5952 * @instance: Adapter soft state 5953 * return: void 5954 */ 5955static void 5956megasas_alloc_irq_vectors(struct megasas_instance *instance) 5957{ 5958 int i; 5959 unsigned int num_msix_req; 5960 5961 instance->iopoll_q_count = 0; 5962 if ((instance->adapter_type != MFI_SERIES) && 5963 poll_queues) { 5964 5965 instance->perf_mode = MR_LATENCY_PERF_MODE; 5966 instance->low_latency_index_start = 1; 5967 5968 /* reserve for default and non-mananged pre-vector. */ 5969 if (instance->msix_vectors > (poll_queues + 2)) 5970 instance->iopoll_q_count = poll_queues; 5971 else 5972 instance->iopoll_q_count = 0; 5973 5974 num_msix_req = blk_mq_num_online_queues(0) + 5975 instance->low_latency_index_start; 5976 instance->msix_vectors = min(num_msix_req, 5977 instance->msix_vectors); 5978 5979 } 5980 5981 i = __megasas_alloc_irq_vectors(instance); 5982 5983 if (((instance->perf_mode == MR_BALANCED_PERF_MODE) 5984 || instance->iopoll_q_count) && 5985 (i != (instance->msix_vectors - instance->iopoll_q_count))) { 5986 if (instance->msix_vectors) 5987 pci_free_irq_vectors(instance->pdev); 5988 /* Disable Balanced IOPS mode and try realloc vectors */ 5989 instance->perf_mode = MR_LATENCY_PERF_MODE; 5990 instance->low_latency_index_start = 1; 5991 num_msix_req = blk_mq_num_online_queues(0) + 5992 instance->low_latency_index_start; 5993 5994 instance->msix_vectors = min(num_msix_req, 5995 instance->msix_vectors); 5996 5997 instance->iopoll_q_count = 0; 5998 i = __megasas_alloc_irq_vectors(instance); 5999 6000 } 6001 6002 dev_info(&instance->pdev->dev, 6003 "requested/available msix %d/%d poll_queue %d\n", 6004 instance->msix_vectors - instance->iopoll_q_count, 6005 i, instance->iopoll_q_count); 6006 6007 if (i > 0) 6008 instance->msix_vectors = i; 6009 else 6010 instance->msix_vectors = 0; 6011 6012 if (instance->smp_affinity_enable) 6013 megasas_set_high_iops_queue_affinity_and_hint(instance); 6014} 6015 6016/** 6017 * megasas_init_fw - Initializes the FW 6018 * @instance: Adapter soft state 6019 * 6020 * This is the main function for initializing firmware 6021 */ 6022 6023static int megasas_init_fw(struct megasas_instance *instance) 6024{ 6025 u32 max_sectors_1; 6026 u32 max_sectors_2, tmp_sectors, msix_enable; 6027 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; 6028 resource_size_t base_addr; 6029 void *base_addr_phys; 6030 struct megasas_ctrl_info *ctrl_info = NULL; 6031 unsigned long bar_list; 6032 int i, j, loop; 6033 struct IOV_111 *iovPtr; 6034 struct fusion_context *fusion; 6035 bool intr_coalescing; 6036 unsigned int num_msix_req; 6037 u16 lnksta, speed; 6038 6039 fusion = instance->ctrl_context; 6040 6041 /* Find first memory bar */ 6042 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 6043 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 6044 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 6045 "megasas: LSI")) { 6046 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 6047 return -EBUSY; 6048 } 6049 6050 base_addr = pci_resource_start(instance->pdev, instance->bar); 6051 instance->reg_set = ioremap(base_addr, 8192); 6052 6053 if (!instance->reg_set) { 6054 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 6055 goto fail_ioremap; 6056 } 6057 6058 base_addr_phys = &base_addr; 6059 dev_printk(KERN_DEBUG, &instance->pdev->dev, 6060 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", 6061 instance->bar, base_addr_phys, instance->reg_set); 6062 6063 if (instance->adapter_type != MFI_SERIES) 6064 instance->instancet = &megasas_instance_template_fusion; 6065 else { 6066 switch (instance->pdev->device) { 6067 case PCI_DEVICE_ID_LSI_SAS1078R: 6068 case PCI_DEVICE_ID_LSI_SAS1078DE: 6069 instance->instancet = &megasas_instance_template_ppc; 6070 break; 6071 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 6072 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 6073 instance->instancet = &megasas_instance_template_gen2; 6074 break; 6075 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 6076 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 6077 instance->instancet = &megasas_instance_template_skinny; 6078 break; 6079 case PCI_DEVICE_ID_LSI_SAS1064R: 6080 case PCI_DEVICE_ID_DELL_PERC5: 6081 default: 6082 instance->instancet = &megasas_instance_template_xscale; 6083 instance->pd_list_not_supported = 1; 6084 break; 6085 } 6086 } 6087 6088 if (megasas_transition_to_ready(instance, 0)) { 6089 dev_info(&instance->pdev->dev, 6090 "Failed to transition controller to ready from %s!\n", 6091 __func__); 6092 if (instance->adapter_type != MFI_SERIES) { 6093 status_reg = instance->instancet->read_fw_status_reg( 6094 instance); 6095 if (status_reg & MFI_RESET_ADAPTER) { 6096 if (megasas_adp_reset_wait_for_ready 6097 (instance, true, 0) == FAILED) 6098 goto fail_ready_state; 6099 } else { 6100 goto fail_ready_state; 6101 } 6102 } else { 6103 atomic_set(&instance->fw_reset_no_pci_access, 1); 6104 instance->instancet->adp_reset 6105 (instance, instance->reg_set); 6106 atomic_set(&instance->fw_reset_no_pci_access, 0); 6107 6108 /*waiting for about 30 second before retry*/ 6109 ssleep(30); 6110 6111 if (megasas_transition_to_ready(instance, 0)) 6112 goto fail_ready_state; 6113 } 6114 6115 dev_info(&instance->pdev->dev, 6116 "FW restarted successfully from %s!\n", 6117 __func__); 6118 } 6119 6120 megasas_init_ctrl_params(instance); 6121 6122 if (megasas_set_dma_mask(instance)) 6123 goto fail_ready_state; 6124 6125 if (megasas_alloc_ctrl_mem(instance)) 6126 goto fail_alloc_dma_buf; 6127 6128 if (megasas_alloc_ctrl_dma_buffers(instance)) 6129 goto fail_alloc_dma_buf; 6130 6131 fusion = instance->ctrl_context; 6132 6133 if (instance->adapter_type >= VENTURA_SERIES) { 6134 scratch_pad_2 = 6135 megasas_readl(instance, 6136 &instance->reg_set->outbound_scratch_pad_2); 6137 instance->max_raid_mapsize = ((scratch_pad_2 >> 6138 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 6139 MR_MAX_RAID_MAP_SIZE_MASK); 6140 } 6141 6142 instance->enable_sdev_max_qd = enable_sdev_max_qd; 6143 6144 switch (instance->adapter_type) { 6145 case VENTURA_SERIES: 6146 fusion->pcie_bw_limitation = true; 6147 break; 6148 case AERO_SERIES: 6149 fusion->r56_div_offload = true; 6150 break; 6151 default: 6152 break; 6153 } 6154 6155 /* Check if MSI-X is supported while in ready state */ 6156 msix_enable = (instance->instancet->read_fw_status_reg(instance) & 6157 0x4000000) >> 0x1a; 6158 if (msix_enable && !msix_disable) { 6159 6160 scratch_pad_1 = megasas_readl 6161 (instance, &instance->reg_set->outbound_scratch_pad_1); 6162 /* Check max MSI-X vectors */ 6163 if (fusion) { 6164 if (instance->adapter_type == THUNDERBOLT_SERIES) { 6165 /* Thunderbolt Series*/ 6166 instance->msix_vectors = (scratch_pad_1 6167 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 6168 } else { 6169 instance->msix_vectors = ((scratch_pad_1 6170 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 6171 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 6172 6173 /* 6174 * For Invader series, > 8 MSI-x vectors 6175 * supported by FW/HW implies combined 6176 * reply queue mode is enabled. 6177 * For Ventura series, > 16 MSI-x vectors 6178 * supported by FW/HW implies combined 6179 * reply queue mode is enabled. 6180 */ 6181 switch (instance->adapter_type) { 6182 case INVADER_SERIES: 6183 if (instance->msix_vectors > 8) 6184 instance->msix_combined = true; 6185 break; 6186 case AERO_SERIES: 6187 case VENTURA_SERIES: 6188 if (instance->msix_vectors > 16) 6189 instance->msix_combined = true; 6190 break; 6191 } 6192 6193 if (rdpq_enable) 6194 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? 6195 1 : 0; 6196 6197 if (instance->adapter_type >= INVADER_SERIES && 6198 !instance->msix_combined) { 6199 instance->msix_load_balance = true; 6200 instance->smp_affinity_enable = false; 6201 } 6202 6203 /* Save 1-15 reply post index address to local memory 6204 * Index 0 is already saved from reg offset 6205 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 6206 */ 6207 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 6208 instance->reply_post_host_index_addr[loop] = 6209 (u32 __iomem *) 6210 ((u8 __iomem *)instance->reg_set + 6211 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 6212 + (loop * 0x10)); 6213 } 6214 } 6215 6216 dev_info(&instance->pdev->dev, 6217 "firmware supports msix\t: (%d)", 6218 instance->msix_vectors); 6219 if (msix_vectors) 6220 instance->msix_vectors = min(msix_vectors, 6221 instance->msix_vectors); 6222 } else /* MFI adapters */ 6223 instance->msix_vectors = 1; 6224 6225 6226 /* 6227 * For Aero (if some conditions are met), driver will configure a 6228 * few additional reply queues with interrupt coalescing enabled. 6229 * These queues with interrupt coalescing enabled are called 6230 * High IOPS queues and rest of reply queues (based on number of 6231 * logical CPUs) are termed as Low latency queues. 6232 * 6233 * Total Number of reply queues = High IOPS queues + low latency queues 6234 * 6235 * For rest of fusion adapters, 1 additional reply queue will be 6236 * reserved for management commands, rest of reply queues 6237 * (based on number of logical CPUs) will be used for IOs and 6238 * referenced as IO queues. 6239 * Total Number of reply queues = 1 + IO queues 6240 * 6241 * MFI adapters supports single MSI-x so single reply queue 6242 * will be used for IO and management commands. 6243 */ 6244 6245 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? 6246 true : false; 6247 if (intr_coalescing && 6248 (blk_mq_num_online_queues(0) >= MR_HIGH_IOPS_QUEUE_COUNT) && 6249 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) 6250 instance->perf_mode = MR_BALANCED_PERF_MODE; 6251 else 6252 instance->perf_mode = MR_LATENCY_PERF_MODE; 6253 6254 6255 if (instance->adapter_type == AERO_SERIES) { 6256 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); 6257 speed = lnksta & PCI_EXP_LNKSTA_CLS; 6258 6259 /* 6260 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate 6261 * in latency perf mode and enable R1 PCI bandwidth algorithm 6262 */ 6263 if (speed < 0x4) { 6264 instance->perf_mode = MR_LATENCY_PERF_MODE; 6265 fusion->pcie_bw_limitation = true; 6266 } 6267 6268 /* 6269 * Performance mode settings provided through module parameter-perf_mode will 6270 * take affect only for: 6271 * 1. Aero family of adapters. 6272 * 2. When user sets module parameter- perf_mode in range of 0-2. 6273 */ 6274 if ((perf_mode >= MR_BALANCED_PERF_MODE) && 6275 (perf_mode <= MR_LATENCY_PERF_MODE)) 6276 instance->perf_mode = perf_mode; 6277 /* 6278 * If intr coalescing is not supported by controller FW, then IOPS 6279 * and Balanced modes are not feasible. 6280 */ 6281 if (!intr_coalescing) 6282 instance->perf_mode = MR_LATENCY_PERF_MODE; 6283 6284 } 6285 6286 if (instance->perf_mode == MR_BALANCED_PERF_MODE) 6287 instance->low_latency_index_start = 6288 MR_HIGH_IOPS_QUEUE_COUNT; 6289 else 6290 instance->low_latency_index_start = 1; 6291 6292 num_msix_req = blk_mq_num_online_queues(0) + 6293 instance->low_latency_index_start; 6294 6295 instance->msix_vectors = min(num_msix_req, 6296 instance->msix_vectors); 6297 6298 megasas_alloc_irq_vectors(instance); 6299 if (!instance->msix_vectors) 6300 instance->msix_load_balance = false; 6301 } 6302 /* 6303 * MSI-X host index 0 is common for all adapter. 6304 * It is used for all MPT based Adapters. 6305 */ 6306 if (instance->msix_combined) { 6307 instance->reply_post_host_index_addr[0] = 6308 (u32 *)((u8 *)instance->reg_set + 6309 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 6310 } else { 6311 instance->reply_post_host_index_addr[0] = 6312 (u32 *)((u8 *)instance->reg_set + 6313 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 6314 } 6315 6316 if (!instance->msix_vectors) { 6317 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_INTX); 6318 if (i < 0) 6319 goto fail_init_adapter; 6320 } 6321 6322 megasas_setup_reply_map(instance); 6323 6324 dev_info(&instance->pdev->dev, 6325 "current msix/max num queues\t: (%d/%u)\n", 6326 instance->msix_vectors, blk_mq_num_online_queues(0)); 6327 dev_info(&instance->pdev->dev, 6328 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 6329 6330 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6331 (unsigned long)instance); 6332 6333 /* 6334 * Below are default value for legacy Firmware. 6335 * non-fusion based controllers 6336 */ 6337 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 6338 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 6339 /* Get operational params, sge flags, send init cmd to controller */ 6340 if (instance->instancet->init_adapter(instance)) 6341 goto fail_init_adapter; 6342 6343 if (instance->adapter_type >= VENTURA_SERIES) { 6344 scratch_pad_3 = 6345 megasas_readl(instance, 6346 &instance->reg_set->outbound_scratch_pad_3); 6347 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= 6348 MR_DEFAULT_NVME_PAGE_SHIFT) 6349 instance->nvme_page_size = 6350 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); 6351 6352 dev_info(&instance->pdev->dev, 6353 "NVME page size\t: (%d)\n", instance->nvme_page_size); 6354 } 6355 6356 if (instance->msix_vectors ? 6357 megasas_setup_irqs_msix(instance, 1) : 6358 megasas_setup_irqs_ioapic(instance)) 6359 goto fail_init_adapter; 6360 6361 if (instance->adapter_type != MFI_SERIES) 6362 megasas_setup_irq_poll(instance); 6363 6364 instance->instancet->enable_intr(instance); 6365 6366 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 6367 6368 megasas_setup_jbod_map(instance); 6369 6370 if (megasas_get_device_list(instance) != SUCCESS) { 6371 dev_err(&instance->pdev->dev, 6372 "%s: megasas_get_device_list failed\n", 6373 __func__); 6374 goto fail_get_ld_pd_list; 6375 } 6376 6377 /* stream detection initialization */ 6378 if (instance->adapter_type >= VENTURA_SERIES) { 6379 fusion->stream_detect_by_ld = 6380 kcalloc(MAX_LOGICAL_DRIVES_EXT, 6381 sizeof(struct LD_STREAM_DETECT *), 6382 GFP_KERNEL); 6383 if (!fusion->stream_detect_by_ld) { 6384 dev_err(&instance->pdev->dev, 6385 "unable to allocate stream detection for pool of LDs\n"); 6386 goto fail_get_ld_pd_list; 6387 } 6388 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 6389 fusion->stream_detect_by_ld[i] = 6390 kzalloc(sizeof(struct LD_STREAM_DETECT), 6391 GFP_KERNEL); 6392 if (!fusion->stream_detect_by_ld[i]) { 6393 dev_err(&instance->pdev->dev, 6394 "unable to allocate stream detect by LD\n"); 6395 for (j = 0; j < i; ++j) 6396 kfree(fusion->stream_detect_by_ld[j]); 6397 kfree(fusion->stream_detect_by_ld); 6398 fusion->stream_detect_by_ld = NULL; 6399 goto fail_get_ld_pd_list; 6400 } 6401 fusion->stream_detect_by_ld[i]->mru_bit_map 6402 = MR_STREAM_BITMAP; 6403 } 6404 } 6405 6406 /* 6407 * Compute the max allowed sectors per IO: The controller info has two 6408 * limits on max sectors. Driver should use the minimum of these two. 6409 * 6410 * 1 << stripe_sz_ops.min = max sectors per strip 6411 * 6412 * Note that older firmwares ( < FW ver 30) didn't report information 6413 * to calculate max_sectors_1. So the number ended up as zero always. 6414 */ 6415 tmp_sectors = 0; 6416 ctrl_info = instance->ctrl_info_buf; 6417 6418 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 6419 le16_to_cpu(ctrl_info->max_strips_per_io); 6420 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 6421 6422 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 6423 6424 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 6425 instance->passive = ctrl_info->cluster.passive; 6426 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 6427 instance->UnevenSpanSupport = 6428 ctrl_info->adapterOperations2.supportUnevenSpans; 6429 if (instance->UnevenSpanSupport) { 6430 struct fusion_context *fusion = instance->ctrl_context; 6431 if (MR_ValidateMapInfo(instance, instance->map_id)) 6432 fusion->fast_path_io = 1; 6433 else 6434 fusion->fast_path_io = 0; 6435 6436 } 6437 if (ctrl_info->host_interface.SRIOV) { 6438 instance->requestorId = ctrl_info->iov.requestorId; 6439 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 6440 if (!ctrl_info->adapterOperations2.activePassive) 6441 instance->PlasmaFW111 = 1; 6442 6443 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 6444 instance->PlasmaFW111 ? "1.11" : "new"); 6445 6446 if (instance->PlasmaFW111) { 6447 iovPtr = (struct IOV_111 *) 6448 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 6449 instance->requestorId = iovPtr->requestorId; 6450 } 6451 } 6452 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 6453 instance->requestorId); 6454 } 6455 6456 instance->crash_dump_fw_support = 6457 ctrl_info->adapterOperations3.supportCrashDump; 6458 instance->crash_dump_drv_support = 6459 (instance->crash_dump_fw_support && 6460 instance->crash_dump_buf); 6461 if (instance->crash_dump_drv_support) 6462 megasas_set_crash_dump_params(instance, 6463 MR_CRASH_BUF_TURN_OFF); 6464 6465 else { 6466 if (instance->crash_dump_buf) 6467 dma_free_coherent(&instance->pdev->dev, 6468 CRASH_DMA_BUF_SIZE, 6469 instance->crash_dump_buf, 6470 instance->crash_dump_h); 6471 instance->crash_dump_buf = NULL; 6472 } 6473 6474 if (instance->snapdump_wait_time) { 6475 megasas_get_snapdump_properties(instance); 6476 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", 6477 instance->snapdump_wait_time); 6478 } 6479 6480 dev_info(&instance->pdev->dev, 6481 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 6482 le16_to_cpu(ctrl_info->pci.vendor_id), 6483 le16_to_cpu(ctrl_info->pci.device_id), 6484 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 6485 le16_to_cpu(ctrl_info->pci.sub_device_id)); 6486 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 6487 instance->UnevenSpanSupport ? "yes" : "no"); 6488 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 6489 instance->crash_dump_drv_support ? "yes" : "no"); 6490 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", 6491 instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); 6492 6493 instance->max_sectors_per_req = instance->max_num_sge * 6494 SGE_BUFFER_SIZE / 512; 6495 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 6496 instance->max_sectors_per_req = tmp_sectors; 6497 6498 /* Check for valid throttlequeuedepth module parameter */ 6499 if (throttlequeuedepth && 6500 throttlequeuedepth <= instance->max_scsi_cmds) 6501 instance->throttlequeuedepth = throttlequeuedepth; 6502 else 6503 instance->throttlequeuedepth = 6504 MEGASAS_THROTTLE_QUEUE_DEPTH; 6505 6506 if ((resetwaittime < 1) || 6507 (resetwaittime > MEGASAS_RESET_WAIT_TIME)) 6508 resetwaittime = MEGASAS_RESET_WAIT_TIME; 6509 6510 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 6511 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 6512 6513 /* Launch SR-IOV heartbeat timer */ 6514 if (instance->requestorId) { 6515 if (!megasas_sriov_start_heartbeat(instance, 1)) { 6516 megasas_start_timer(instance); 6517 } else { 6518 instance->skip_heartbeat_timer_del = 1; 6519 goto fail_get_ld_pd_list; 6520 } 6521 } 6522 6523 /* 6524 * Create and start watchdog thread which will monitor 6525 * controller state every 1 sec and trigger OCR when 6526 * it enters fault state 6527 */ 6528 if (instance->adapter_type != MFI_SERIES) 6529 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 6530 goto fail_start_watchdog; 6531 6532 return 0; 6533 6534fail_start_watchdog: 6535 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6536 timer_delete_sync(&instance->sriov_heartbeat_timer); 6537fail_get_ld_pd_list: 6538 instance->instancet->disable_intr(instance); 6539 megasas_destroy_irqs(instance); 6540fail_init_adapter: 6541 if (instance->msix_vectors) 6542 pci_free_irq_vectors(instance->pdev); 6543 instance->msix_vectors = 0; 6544fail_alloc_dma_buf: 6545 megasas_free_ctrl_dma_buffers(instance); 6546 megasas_free_ctrl_mem(instance); 6547fail_ready_state: 6548 iounmap(instance->reg_set); 6549 6550fail_ioremap: 6551 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6552 6553 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6554 __func__, __LINE__); 6555 return -EINVAL; 6556} 6557 6558/** 6559 * megasas_release_mfi - Reverses the FW initialization 6560 * @instance: Adapter soft state 6561 */ 6562static void megasas_release_mfi(struct megasas_instance *instance) 6563{ 6564 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 6565 6566 if (instance->reply_queue) 6567 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 6568 instance->reply_queue, instance->reply_queue_h); 6569 6570 megasas_free_cmds(instance); 6571 6572 iounmap(instance->reg_set); 6573 6574 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6575} 6576 6577/** 6578 * megasas_get_seq_num - Gets latest event sequence numbers 6579 * @instance: Adapter soft state 6580 * @eli: FW event log sequence numbers information 6581 * 6582 * FW maintains a log of all events in a non-volatile area. Upper layers would 6583 * usually find out the latest sequence number of the events, the seq number at 6584 * the boot etc. They would "read" all the events below the latest seq number 6585 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 6586 * number), they would subsribe to AEN (asynchronous event notification) and 6587 * wait for the events to happen. 6588 */ 6589static int 6590megasas_get_seq_num(struct megasas_instance *instance, 6591 struct megasas_evt_log_info *eli) 6592{ 6593 struct megasas_cmd *cmd; 6594 struct megasas_dcmd_frame *dcmd; 6595 struct megasas_evt_log_info *el_info; 6596 dma_addr_t el_info_h = 0; 6597 int ret; 6598 6599 cmd = megasas_get_cmd(instance); 6600 6601 if (!cmd) { 6602 return -ENOMEM; 6603 } 6604 6605 dcmd = &cmd->frame->dcmd; 6606 el_info = dma_alloc_coherent(&instance->pdev->dev, 6607 sizeof(struct megasas_evt_log_info), 6608 &el_info_h, GFP_KERNEL); 6609 if (!el_info) { 6610 megasas_return_cmd(instance, cmd); 6611 return -ENOMEM; 6612 } 6613 6614 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6615 6616 dcmd->cmd = MFI_CMD_DCMD; 6617 dcmd->cmd_status = 0x0; 6618 dcmd->sge_count = 1; 6619 dcmd->flags = MFI_FRAME_DIR_READ; 6620 dcmd->timeout = 0; 6621 dcmd->pad_0 = 0; 6622 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 6623 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 6624 6625 megasas_set_dma_settings(instance, dcmd, el_info_h, 6626 sizeof(struct megasas_evt_log_info)); 6627 6628 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 6629 if (ret != DCMD_SUCCESS) { 6630 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6631 __func__, __LINE__); 6632 goto dcmd_failed; 6633 } 6634 6635 /* 6636 * Copy the data back into callers buffer 6637 */ 6638 eli->newest_seq_num = el_info->newest_seq_num; 6639 eli->oldest_seq_num = el_info->oldest_seq_num; 6640 eli->clear_seq_num = el_info->clear_seq_num; 6641 eli->shutdown_seq_num = el_info->shutdown_seq_num; 6642 eli->boot_seq_num = el_info->boot_seq_num; 6643 6644dcmd_failed: 6645 dma_free_coherent(&instance->pdev->dev, 6646 sizeof(struct megasas_evt_log_info), 6647 el_info, el_info_h); 6648 6649 megasas_return_cmd(instance, cmd); 6650 6651 return ret; 6652} 6653 6654/** 6655 * megasas_register_aen - Registers for asynchronous event notification 6656 * @instance: Adapter soft state 6657 * @seq_num: The starting sequence number 6658 * @class_locale_word: Class of the event 6659 * 6660 * This function subscribes for AEN for events beyond the @seq_num. It requests 6661 * to be notified if and only if the event is of type @class_locale 6662 */ 6663static int 6664megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 6665 u32 class_locale_word) 6666{ 6667 int ret_val; 6668 struct megasas_cmd *cmd; 6669 struct megasas_dcmd_frame *dcmd; 6670 union megasas_evt_class_locale curr_aen; 6671 union megasas_evt_class_locale prev_aen; 6672 6673 /* 6674 * If there an AEN pending already (aen_cmd), check if the 6675 * class_locale of that pending AEN is inclusive of the new 6676 * AEN request we currently have. If it is, then we don't have 6677 * to do anything. In other words, whichever events the current 6678 * AEN request is subscribing to, have already been subscribed 6679 * to. 6680 * 6681 * If the old_cmd is _not_ inclusive, then we have to abort 6682 * that command, form a class_locale that is superset of both 6683 * old and current and re-issue to the FW 6684 */ 6685 6686 curr_aen.word = class_locale_word; 6687 6688 if (instance->aen_cmd) { 6689 6690 prev_aen.word = 6691 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 6692 6693 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || 6694 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { 6695 dev_info(&instance->pdev->dev, 6696 "%s %d out of range class %d send by application\n", 6697 __func__, __LINE__, curr_aen.members.class); 6698 return 0; 6699 } 6700 6701 /* 6702 * A class whose enum value is smaller is inclusive of all 6703 * higher values. If a PROGRESS (= -1) was previously 6704 * registered, then a new registration requests for higher 6705 * classes need not be sent to FW. They are automatically 6706 * included. 6707 * 6708 * Locale numbers don't have such hierarchy. They are bitmap 6709 * values 6710 */ 6711 if ((prev_aen.members.class <= curr_aen.members.class) && 6712 !((prev_aen.members.locale & curr_aen.members.locale) ^ 6713 curr_aen.members.locale)) { 6714 /* 6715 * Previously issued event registration includes 6716 * current request. Nothing to do. 6717 */ 6718 return 0; 6719 } else { 6720 curr_aen.members.locale |= prev_aen.members.locale; 6721 6722 if (prev_aen.members.class < curr_aen.members.class) 6723 curr_aen.members.class = prev_aen.members.class; 6724 6725 instance->aen_cmd->abort_aen = 1; 6726 ret_val = megasas_issue_blocked_abort_cmd(instance, 6727 instance-> 6728 aen_cmd, 30); 6729 6730 if (ret_val) { 6731 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 6732 "previous AEN command\n"); 6733 return ret_val; 6734 } 6735 } 6736 } 6737 6738 cmd = megasas_get_cmd(instance); 6739 6740 if (!cmd) 6741 return -ENOMEM; 6742 6743 dcmd = &cmd->frame->dcmd; 6744 6745 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 6746 6747 /* 6748 * Prepare DCMD for aen registration 6749 */ 6750 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6751 6752 dcmd->cmd = MFI_CMD_DCMD; 6753 dcmd->cmd_status = 0x0; 6754 dcmd->sge_count = 1; 6755 dcmd->flags = MFI_FRAME_DIR_READ; 6756 dcmd->timeout = 0; 6757 dcmd->pad_0 = 0; 6758 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 6759 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 6760 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 6761 instance->last_seq_num = seq_num; 6762 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 6763 6764 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, 6765 sizeof(struct megasas_evt_detail)); 6766 6767 if (instance->aen_cmd != NULL) { 6768 megasas_return_cmd(instance, cmd); 6769 return 0; 6770 } 6771 6772 /* 6773 * Store reference to the cmd used to register for AEN. When an 6774 * application wants us to register for AEN, we have to abort this 6775 * cmd and re-register with a new EVENT LOCALE supplied by that app 6776 */ 6777 instance->aen_cmd = cmd; 6778 6779 /* 6780 * Issue the aen registration frame 6781 */ 6782 instance->instancet->issue_dcmd(instance, cmd); 6783 6784 return 0; 6785} 6786 6787/* megasas_get_target_prop - Send DCMD with below details to firmware. 6788 * 6789 * This DCMD will fetch few properties of LD/system PD defined 6790 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 6791 * 6792 * DCMD send by drivers whenever new target is added to the OS. 6793 * 6794 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 6795 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 6796 * 0 = system PD, 1 = LD. 6797 * dcmd.mbox.s[1] - TargetID for LD/system PD. 6798 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 6799 * 6800 * @instance: Adapter soft state 6801 * @sdev: OS provided scsi device 6802 * 6803 * Returns 0 on success non-zero on failure. 6804 */ 6805int 6806megasas_get_target_prop(struct megasas_instance *instance, 6807 struct scsi_device *sdev) 6808{ 6809 int ret; 6810 struct megasas_cmd *cmd; 6811 struct megasas_dcmd_frame *dcmd; 6812 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 6813 sdev->id; 6814 6815 cmd = megasas_get_cmd(instance); 6816 6817 if (!cmd) { 6818 dev_err(&instance->pdev->dev, 6819 "Failed to get cmd %s\n", __func__); 6820 return -ENOMEM; 6821 } 6822 6823 dcmd = &cmd->frame->dcmd; 6824 6825 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 6826 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6827 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 6828 6829 dcmd->mbox.s[1] = cpu_to_le16(targetId); 6830 dcmd->cmd = MFI_CMD_DCMD; 6831 dcmd->cmd_status = 0xFF; 6832 dcmd->sge_count = 1; 6833 dcmd->flags = MFI_FRAME_DIR_READ; 6834 dcmd->timeout = 0; 6835 dcmd->pad_0 = 0; 6836 dcmd->data_xfer_len = 6837 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 6838 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 6839 6840 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, 6841 sizeof(struct MR_TARGET_PROPERTIES)); 6842 6843 if ((instance->adapter_type != MFI_SERIES) && 6844 !instance->mask_interrupts) 6845 ret = megasas_issue_blocked_cmd(instance, 6846 cmd, MFI_IO_TIMEOUT_SECS); 6847 else 6848 ret = megasas_issue_polled(instance, cmd); 6849 6850 switch (ret) { 6851 case DCMD_TIMEOUT: 6852 switch (dcmd_timeout_ocr_possible(instance)) { 6853 case INITIATE_OCR: 6854 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 6855 mutex_unlock(&instance->reset_mutex); 6856 megasas_reset_fusion(instance->host, 6857 MFI_IO_TIMEOUT_OCR); 6858 mutex_lock(&instance->reset_mutex); 6859 break; 6860 case KILL_ADAPTER: 6861 megaraid_sas_kill_hba(instance); 6862 break; 6863 case IGNORE_TIMEOUT: 6864 dev_info(&instance->pdev->dev, 6865 "Ignore DCMD timeout: %s %d\n", 6866 __func__, __LINE__); 6867 break; 6868 } 6869 break; 6870 6871 default: 6872 megasas_return_cmd(instance, cmd); 6873 } 6874 if (ret != DCMD_SUCCESS) 6875 dev_err(&instance->pdev->dev, 6876 "return from %s %d return value %d\n", 6877 __func__, __LINE__, ret); 6878 6879 return ret; 6880} 6881 6882/** 6883 * megasas_start_aen - Subscribes to AEN during driver load time 6884 * @instance: Adapter soft state 6885 */ 6886static int megasas_start_aen(struct megasas_instance *instance) 6887{ 6888 struct megasas_evt_log_info eli; 6889 union megasas_evt_class_locale class_locale; 6890 6891 /* 6892 * Get the latest sequence number from FW 6893 */ 6894 memset(&eli, 0, sizeof(eli)); 6895 6896 if (megasas_get_seq_num(instance, &eli)) 6897 return -1; 6898 6899 /* 6900 * Register AEN with FW for latest sequence number plus 1 6901 */ 6902 class_locale.members.reserved = 0; 6903 class_locale.members.locale = MR_EVT_LOCALE_ALL; 6904 class_locale.members.class = MR_EVT_CLASS_DEBUG; 6905 6906 return megasas_register_aen(instance, 6907 le32_to_cpu(eli.newest_seq_num) + 1, 6908 class_locale.word); 6909} 6910 6911/** 6912 * megasas_io_attach - Attaches this driver to SCSI mid-layer 6913 * @instance: Adapter soft state 6914 */ 6915static int megasas_io_attach(struct megasas_instance *instance) 6916{ 6917 struct Scsi_Host *host = instance->host; 6918 6919 /* 6920 * Export parameters required by SCSI mid-layer 6921 */ 6922 host->unique_id = instance->unique_id; 6923 host->can_queue = instance->max_scsi_cmds; 6924 host->this_id = instance->init_id; 6925 host->sg_tablesize = instance->max_num_sge; 6926 6927 if (instance->fw_support_ieee) 6928 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 6929 6930 /* 6931 * Check if the module parameter value for max_sectors can be used 6932 */ 6933 if (max_sectors && max_sectors < instance->max_sectors_per_req) 6934 instance->max_sectors_per_req = max_sectors; 6935 else { 6936 if (max_sectors) { 6937 if (((instance->pdev->device == 6938 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 6939 (instance->pdev->device == 6940 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 6941 (max_sectors <= MEGASAS_MAX_SECTORS)) { 6942 instance->max_sectors_per_req = max_sectors; 6943 } else { 6944 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 6945 "and <= %d (or < 1MB for GEN2 controller)\n", 6946 instance->max_sectors_per_req); 6947 } 6948 } 6949 } 6950 6951 host->max_sectors = instance->max_sectors_per_req; 6952 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 6953 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 6954 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 6955 host->max_lun = MEGASAS_MAX_LUN; 6956 host->max_cmd_len = 16; 6957 6958 /* Use shared host tagset only for fusion adaptors 6959 * if there are managed interrupts (smp affinity enabled case). 6960 * Single msix_vectors in kdump, so shared host tag is also disabled. 6961 */ 6962 6963 host->host_tagset = 0; 6964 host->nr_hw_queues = 1; 6965 6966 if ((instance->adapter_type != MFI_SERIES) && 6967 (instance->msix_vectors > instance->low_latency_index_start) && 6968 host_tagset_enable && 6969 instance->smp_affinity_enable) { 6970 host->host_tagset = 1; 6971 host->nr_hw_queues = instance->msix_vectors - 6972 instance->low_latency_index_start + instance->iopoll_q_count; 6973 if (instance->iopoll_q_count) 6974 host->nr_maps = 3; 6975 } else { 6976 instance->iopoll_q_count = 0; 6977 } 6978 6979 dev_info(&instance->pdev->dev, 6980 "Max firmware commands: %d shared with default " 6981 "hw_queues = %d poll_queues %d\n", instance->max_fw_cmds, 6982 host->nr_hw_queues - instance->iopoll_q_count, 6983 instance->iopoll_q_count); 6984 /* 6985 * Notify the mid-layer about the new controller 6986 */ 6987 if (scsi_add_host(host, &instance->pdev->dev)) { 6988 dev_err(&instance->pdev->dev, 6989 "Failed to add host from %s %d\n", 6990 __func__, __LINE__); 6991 return -ENODEV; 6992 } 6993 6994 return 0; 6995} 6996 6997/** 6998 * megasas_set_dma_mask - Set DMA mask for supported controllers 6999 * 7000 * @instance: Adapter soft state 7001 * Description: 7002 * 7003 * For Ventura, driver/FW will operate in 63bit DMA addresses. 7004 * 7005 * For invader- 7006 * By default, driver/FW will operate in 32bit DMA addresses 7007 * for consistent DMA mapping but if 32 bit consistent 7008 * DMA mask fails, driver will try with 63 bit consistent 7009 * mask provided FW is true 63bit DMA capable 7010 * 7011 * For older controllers(Thunderbolt and MFI based adapters)- 7012 * driver/FW will operate in 32 bit consistent DMA addresses. 7013 */ 7014static int 7015megasas_set_dma_mask(struct megasas_instance *instance) 7016{ 7017 u64 consistent_mask; 7018 struct pci_dev *pdev; 7019 u32 scratch_pad_1; 7020 7021 pdev = instance->pdev; 7022 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? 7023 DMA_BIT_MASK(63) : DMA_BIT_MASK(32); 7024 7025 if (IS_DMA64) { 7026 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && 7027 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 7028 goto fail_set_dma_mask; 7029 7030 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && 7031 (dma_set_coherent_mask(&pdev->dev, consistent_mask) && 7032 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { 7033 /* 7034 * If 32 bit DMA mask fails, then try for 64 bit mask 7035 * for FW capable of handling 64 bit DMA. 7036 */ 7037 scratch_pad_1 = megasas_readl 7038 (instance, &instance->reg_set->outbound_scratch_pad_1); 7039 7040 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) 7041 goto fail_set_dma_mask; 7042 else if (dma_set_mask_and_coherent(&pdev->dev, 7043 DMA_BIT_MASK(63))) 7044 goto fail_set_dma_mask; 7045 } 7046 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 7047 goto fail_set_dma_mask; 7048 7049 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) 7050 instance->consistent_mask_64bit = false; 7051 else 7052 instance->consistent_mask_64bit = true; 7053 7054 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", 7055 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), 7056 (instance->consistent_mask_64bit ? "63" : "32")); 7057 7058 return 0; 7059 7060fail_set_dma_mask: 7061 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 7062 return -1; 7063 7064} 7065 7066/* 7067 * megasas_set_adapter_type - Set adapter type. 7068 * Supported controllers can be divided in 7069 * different categories- 7070 * enum MR_ADAPTER_TYPE { 7071 * MFI_SERIES = 1, 7072 * THUNDERBOLT_SERIES = 2, 7073 * INVADER_SERIES = 3, 7074 * VENTURA_SERIES = 4, 7075 * AERO_SERIES = 5, 7076 * }; 7077 * @instance: Adapter soft state 7078 * return: void 7079 */ 7080static inline void megasas_set_adapter_type(struct megasas_instance *instance) 7081{ 7082 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && 7083 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { 7084 instance->adapter_type = MFI_SERIES; 7085 } else { 7086 switch (instance->pdev->device) { 7087 case PCI_DEVICE_ID_LSI_AERO_10E1: 7088 case PCI_DEVICE_ID_LSI_AERO_10E2: 7089 case PCI_DEVICE_ID_LSI_AERO_10E5: 7090 case PCI_DEVICE_ID_LSI_AERO_10E6: 7091 instance->adapter_type = AERO_SERIES; 7092 break; 7093 case PCI_DEVICE_ID_LSI_VENTURA: 7094 case PCI_DEVICE_ID_LSI_CRUSADER: 7095 case PCI_DEVICE_ID_LSI_HARPOON: 7096 case PCI_DEVICE_ID_LSI_TOMCAT: 7097 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 7098 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 7099 instance->adapter_type = VENTURA_SERIES; 7100 break; 7101 case PCI_DEVICE_ID_LSI_FUSION: 7102 case PCI_DEVICE_ID_LSI_PLASMA: 7103 instance->adapter_type = THUNDERBOLT_SERIES; 7104 break; 7105 case PCI_DEVICE_ID_LSI_INVADER: 7106 case PCI_DEVICE_ID_LSI_INTRUDER: 7107 case PCI_DEVICE_ID_LSI_INTRUDER_24: 7108 case PCI_DEVICE_ID_LSI_CUTLASS_52: 7109 case PCI_DEVICE_ID_LSI_CUTLASS_53: 7110 case PCI_DEVICE_ID_LSI_FURY: 7111 instance->adapter_type = INVADER_SERIES; 7112 break; 7113 default: /* For all other supported controllers */ 7114 instance->adapter_type = MFI_SERIES; 7115 break; 7116 } 7117 } 7118} 7119 7120static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) 7121{ 7122 instance->producer = dma_alloc_coherent(&instance->pdev->dev, 7123 sizeof(u32), &instance->producer_h, GFP_KERNEL); 7124 instance->consumer = dma_alloc_coherent(&instance->pdev->dev, 7125 sizeof(u32), &instance->consumer_h, GFP_KERNEL); 7126 7127 if (!instance->producer || !instance->consumer) { 7128 dev_err(&instance->pdev->dev, 7129 "Failed to allocate memory for producer, consumer\n"); 7130 return -1; 7131 } 7132 7133 *instance->producer = 0; 7134 *instance->consumer = 0; 7135 return 0; 7136} 7137 7138/** 7139 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data 7140 * structures which are not common across MFI 7141 * adapters and fusion adapters. 7142 * For MFI based adapters, allocate producer and 7143 * consumer buffers. For fusion adapters, allocate 7144 * memory for fusion context. 7145 * @instance: Adapter soft state 7146 * return: 0 for SUCCESS 7147 */ 7148static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) 7149{ 7150 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), 7151 GFP_KERNEL); 7152 if (!instance->reply_map) 7153 return -ENOMEM; 7154 7155 switch (instance->adapter_type) { 7156 case MFI_SERIES: 7157 if (megasas_alloc_mfi_ctrl_mem(instance)) 7158 return -ENOMEM; 7159 break; 7160 case AERO_SERIES: 7161 case VENTURA_SERIES: 7162 case THUNDERBOLT_SERIES: 7163 case INVADER_SERIES: 7164 if (megasas_alloc_fusion_context(instance)) 7165 return -ENOMEM; 7166 break; 7167 } 7168 7169 return 0; 7170} 7171 7172/* 7173 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and 7174 * producer, consumer buffers for MFI adapters 7175 * 7176 * @instance - Adapter soft instance 7177 * 7178 */ 7179static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) 7180{ 7181 kfree(instance->reply_map); 7182 if (instance->adapter_type == MFI_SERIES) { 7183 if (instance->producer) 7184 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7185 instance->producer, 7186 instance->producer_h); 7187 if (instance->consumer) 7188 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7189 instance->consumer, 7190 instance->consumer_h); 7191 } else { 7192 megasas_free_fusion_context(instance); 7193 } 7194} 7195 7196/** 7197 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during 7198 * driver load time 7199 * 7200 * @instance: Adapter soft instance 7201 * 7202 * @return: O for SUCCESS 7203 */ 7204static inline 7205int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) 7206{ 7207 struct pci_dev *pdev = instance->pdev; 7208 struct fusion_context *fusion = instance->ctrl_context; 7209 7210 instance->evt_detail = dma_alloc_coherent(&pdev->dev, 7211 sizeof(struct megasas_evt_detail), 7212 &instance->evt_detail_h, GFP_KERNEL); 7213 7214 if (!instance->evt_detail) { 7215 dev_err(&instance->pdev->dev, 7216 "Failed to allocate event detail buffer\n"); 7217 return -ENOMEM; 7218 } 7219 7220 if (fusion) { 7221 fusion->ioc_init_request = 7222 dma_alloc_coherent(&pdev->dev, 7223 sizeof(struct MPI2_IOC_INIT_REQUEST), 7224 &fusion->ioc_init_request_phys, 7225 GFP_KERNEL); 7226 7227 if (!fusion->ioc_init_request) { 7228 dev_err(&pdev->dev, 7229 "Failed to allocate ioc init request\n"); 7230 return -ENOMEM; 7231 } 7232 7233 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, 7234 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7235 &instance->snapdump_prop_h, GFP_KERNEL); 7236 7237 if (!instance->snapdump_prop) 7238 dev_err(&pdev->dev, 7239 "Failed to allocate snapdump properties buffer\n"); 7240 7241 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, 7242 HOST_DEVICE_LIST_SZ, 7243 &instance->host_device_list_buf_h, 7244 GFP_KERNEL); 7245 7246 if (!instance->host_device_list_buf) { 7247 dev_err(&pdev->dev, 7248 "Failed to allocate targetid list buffer\n"); 7249 return -ENOMEM; 7250 } 7251 7252 } 7253 7254 instance->pd_list_buf = 7255 dma_alloc_coherent(&pdev->dev, 7256 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7257 &instance->pd_list_buf_h, GFP_KERNEL); 7258 7259 if (!instance->pd_list_buf) { 7260 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); 7261 return -ENOMEM; 7262 } 7263 7264 instance->ctrl_info_buf = 7265 dma_alloc_coherent(&pdev->dev, 7266 sizeof(struct megasas_ctrl_info), 7267 &instance->ctrl_info_buf_h, GFP_KERNEL); 7268 7269 if (!instance->ctrl_info_buf) { 7270 dev_err(&pdev->dev, 7271 "Failed to allocate controller info buffer\n"); 7272 return -ENOMEM; 7273 } 7274 7275 instance->ld_list_buf = 7276 dma_alloc_coherent(&pdev->dev, 7277 sizeof(struct MR_LD_LIST), 7278 &instance->ld_list_buf_h, GFP_KERNEL); 7279 7280 if (!instance->ld_list_buf) { 7281 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); 7282 return -ENOMEM; 7283 } 7284 7285 instance->ld_targetid_list_buf = 7286 dma_alloc_coherent(&pdev->dev, 7287 sizeof(struct MR_LD_TARGETID_LIST), 7288 &instance->ld_targetid_list_buf_h, GFP_KERNEL); 7289 7290 if (!instance->ld_targetid_list_buf) { 7291 dev_err(&pdev->dev, 7292 "Failed to allocate LD targetid list buffer\n"); 7293 return -ENOMEM; 7294 } 7295 7296 if (!reset_devices) { 7297 instance->system_info_buf = 7298 dma_alloc_coherent(&pdev->dev, 7299 sizeof(struct MR_DRV_SYSTEM_INFO), 7300 &instance->system_info_h, GFP_KERNEL); 7301 instance->pd_info = 7302 dma_alloc_coherent(&pdev->dev, 7303 sizeof(struct MR_PD_INFO), 7304 &instance->pd_info_h, GFP_KERNEL); 7305 instance->tgt_prop = 7306 dma_alloc_coherent(&pdev->dev, 7307 sizeof(struct MR_TARGET_PROPERTIES), 7308 &instance->tgt_prop_h, GFP_KERNEL); 7309 instance->crash_dump_buf = 7310 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7311 &instance->crash_dump_h, GFP_KERNEL); 7312 7313 if (!instance->system_info_buf) 7314 dev_err(&instance->pdev->dev, 7315 "Failed to allocate system info buffer\n"); 7316 7317 if (!instance->pd_info) 7318 dev_err(&instance->pdev->dev, 7319 "Failed to allocate pd_info buffer\n"); 7320 7321 if (!instance->tgt_prop) 7322 dev_err(&instance->pdev->dev, 7323 "Failed to allocate tgt_prop buffer\n"); 7324 7325 if (!instance->crash_dump_buf) 7326 dev_err(&instance->pdev->dev, 7327 "Failed to allocate crash dump buffer\n"); 7328 } 7329 7330 return 0; 7331} 7332 7333/* 7334 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated 7335 * during driver load time 7336 * 7337 * @instance- Adapter soft instance 7338 * 7339 */ 7340static inline 7341void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) 7342{ 7343 struct pci_dev *pdev = instance->pdev; 7344 struct fusion_context *fusion = instance->ctrl_context; 7345 7346 if (instance->evt_detail) 7347 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), 7348 instance->evt_detail, 7349 instance->evt_detail_h); 7350 7351 if (fusion && fusion->ioc_init_request) 7352 dma_free_coherent(&pdev->dev, 7353 sizeof(struct MPI2_IOC_INIT_REQUEST), 7354 fusion->ioc_init_request, 7355 fusion->ioc_init_request_phys); 7356 7357 if (instance->pd_list_buf) 7358 dma_free_coherent(&pdev->dev, 7359 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7360 instance->pd_list_buf, 7361 instance->pd_list_buf_h); 7362 7363 if (instance->ld_list_buf) 7364 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), 7365 instance->ld_list_buf, 7366 instance->ld_list_buf_h); 7367 7368 if (instance->ld_targetid_list_buf) 7369 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), 7370 instance->ld_targetid_list_buf, 7371 instance->ld_targetid_list_buf_h); 7372 7373 if (instance->ctrl_info_buf) 7374 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), 7375 instance->ctrl_info_buf, 7376 instance->ctrl_info_buf_h); 7377 7378 if (instance->system_info_buf) 7379 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), 7380 instance->system_info_buf, 7381 instance->system_info_h); 7382 7383 if (instance->pd_info) 7384 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), 7385 instance->pd_info, instance->pd_info_h); 7386 7387 if (instance->tgt_prop) 7388 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), 7389 instance->tgt_prop, instance->tgt_prop_h); 7390 7391 if (instance->crash_dump_buf) 7392 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7393 instance->crash_dump_buf, 7394 instance->crash_dump_h); 7395 7396 if (instance->snapdump_prop) 7397 dma_free_coherent(&pdev->dev, 7398 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7399 instance->snapdump_prop, 7400 instance->snapdump_prop_h); 7401 7402 if (instance->host_device_list_buf) 7403 dma_free_coherent(&pdev->dev, 7404 HOST_DEVICE_LIST_SZ, 7405 instance->host_device_list_buf, 7406 instance->host_device_list_buf_h); 7407 7408} 7409 7410/* 7411 * megasas_init_ctrl_params - Initialize controller's instance 7412 * parameters before FW init 7413 * @instance - Adapter soft instance 7414 * @return - void 7415 */ 7416static inline void megasas_init_ctrl_params(struct megasas_instance *instance) 7417{ 7418 instance->fw_crash_state = UNAVAILABLE; 7419 7420 megasas_poll_wait_aen = 0; 7421 instance->issuepend_done = 1; 7422 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 7423 7424 /* 7425 * Initialize locks and queues 7426 */ 7427 INIT_LIST_HEAD(&instance->cmd_pool); 7428 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 7429 7430 atomic_set(&instance->fw_outstanding, 0); 7431 atomic64_set(&instance->total_io_count, 0); 7432 7433 init_waitqueue_head(&instance->int_cmd_wait_q); 7434 init_waitqueue_head(&instance->abort_cmd_wait_q); 7435 7436 mutex_init(&instance->crashdump_lock); 7437 spin_lock_init(&instance->mfi_pool_lock); 7438 spin_lock_init(&instance->hba_lock); 7439 spin_lock_init(&instance->stream_lock); 7440 spin_lock_init(&instance->completion_lock); 7441 7442 mutex_init(&instance->reset_mutex); 7443 7444 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 7445 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 7446 instance->flag_ieee = 1; 7447 7448 instance->flag = 0; 7449 instance->unload = 1; 7450 instance->last_time = 0; 7451 instance->disableOnlineCtrlReset = 1; 7452 instance->UnevenSpanSupport = 0; 7453 instance->smp_affinity_enable = smp_affinity_enable ? true : false; 7454 instance->msix_load_balance = false; 7455 7456 if (instance->adapter_type != MFI_SERIES) 7457 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 7458 else 7459 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 7460} 7461 7462/** 7463 * megasas_probe_one - PCI hotplug entry point 7464 * @pdev: PCI device structure 7465 * @id: PCI ids of supported hotplugged adapter 7466 */ 7467static int megasas_probe_one(struct pci_dev *pdev, 7468 const struct pci_device_id *id) 7469{ 7470 int rval, pos; 7471 struct Scsi_Host *host; 7472 struct megasas_instance *instance; 7473 u16 control = 0; 7474 7475 switch (pdev->device) { 7476 case PCI_DEVICE_ID_LSI_AERO_10E0: 7477 case PCI_DEVICE_ID_LSI_AERO_10E3: 7478 case PCI_DEVICE_ID_LSI_AERO_10E4: 7479 case PCI_DEVICE_ID_LSI_AERO_10E7: 7480 dev_err(&pdev->dev, "Adapter is in non secure mode\n"); 7481 return 1; 7482 case PCI_DEVICE_ID_LSI_AERO_10E1: 7483 case PCI_DEVICE_ID_LSI_AERO_10E5: 7484 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); 7485 break; 7486 } 7487 7488 /* Reset MSI-X in the kdump kernel */ 7489 if (reset_devices) { 7490 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 7491 if (pos) { 7492 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 7493 &control); 7494 if (control & PCI_MSIX_FLAGS_ENABLE) { 7495 dev_info(&pdev->dev, "resetting MSI-X\n"); 7496 pci_write_config_word(pdev, 7497 pos + PCI_MSIX_FLAGS, 7498 control & 7499 ~PCI_MSIX_FLAGS_ENABLE); 7500 } 7501 } 7502 } 7503 7504 /* 7505 * PCI prepping: enable device set bus mastering and dma mask 7506 */ 7507 rval = pci_enable_device_mem(pdev); 7508 7509 if (rval) { 7510 return rval; 7511 } 7512 7513 pci_set_master(pdev); 7514 7515 host = scsi_host_alloc(&megasas_template, 7516 sizeof(struct megasas_instance)); 7517 7518 if (!host) { 7519 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 7520 goto fail_alloc_instance; 7521 } 7522 7523 instance = (struct megasas_instance *)host->hostdata; 7524 memset(instance, 0, sizeof(*instance)); 7525 atomic_set(&instance->fw_reset_no_pci_access, 0); 7526 7527 /* 7528 * Initialize PCI related and misc parameters 7529 */ 7530 instance->pdev = pdev; 7531 instance->host = host; 7532 instance->unique_id = pci_dev_id(pdev); 7533 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 7534 7535 megasas_set_adapter_type(instance); 7536 7537 /* 7538 * Initialize MFI Firmware 7539 */ 7540 if (megasas_init_fw(instance)) 7541 goto fail_init_mfi; 7542 7543 if (instance->requestorId) { 7544 if (instance->PlasmaFW111) { 7545 instance->vf_affiliation_111 = 7546 dma_alloc_coherent(&pdev->dev, 7547 sizeof(struct MR_LD_VF_AFFILIATION_111), 7548 &instance->vf_affiliation_111_h, 7549 GFP_KERNEL); 7550 if (!instance->vf_affiliation_111) 7551 dev_warn(&pdev->dev, "Can't allocate " 7552 "memory for VF affiliation buffer\n"); 7553 } else { 7554 instance->vf_affiliation = 7555 dma_alloc_coherent(&pdev->dev, 7556 (MAX_LOGICAL_DRIVES + 1) * 7557 sizeof(struct MR_LD_VF_AFFILIATION), 7558 &instance->vf_affiliation_h, 7559 GFP_KERNEL); 7560 if (!instance->vf_affiliation) 7561 dev_warn(&pdev->dev, "Can't allocate " 7562 "memory for VF affiliation buffer\n"); 7563 } 7564 } 7565 7566 /* 7567 * Store instance in PCI softstate 7568 */ 7569 pci_set_drvdata(pdev, instance); 7570 7571 /* 7572 * Add this controller to megasas_mgmt_info structure so that it 7573 * can be exported to management applications 7574 */ 7575 megasas_mgmt_info.count++; 7576 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 7577 megasas_mgmt_info.max_index++; 7578 7579 /* 7580 * Register with SCSI mid-layer 7581 */ 7582 if (megasas_io_attach(instance)) 7583 goto fail_io_attach; 7584 7585 instance->unload = 0; 7586 /* 7587 * Trigger SCSI to scan our drives 7588 */ 7589 if (!instance->enable_fw_dev_list || 7590 (instance->host_device_list_buf->count > 0)) 7591 scsi_scan_host(host); 7592 7593 /* 7594 * Initiate AEN (Asynchronous Event Notification) 7595 */ 7596 if (megasas_start_aen(instance)) { 7597 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 7598 goto fail_start_aen; 7599 } 7600 7601 megasas_setup_debugfs(instance); 7602 7603 /* Get current SR-IOV LD/VF affiliation */ 7604 if (instance->requestorId) 7605 megasas_get_ld_vf_affiliation(instance, 1); 7606 7607 return 0; 7608 7609fail_start_aen: 7610 instance->unload = 1; 7611 scsi_remove_host(instance->host); 7612fail_io_attach: 7613 megasas_mgmt_info.count--; 7614 megasas_mgmt_info.max_index--; 7615 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 7616 7617 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7618 timer_delete_sync(&instance->sriov_heartbeat_timer); 7619 7620 instance->instancet->disable_intr(instance); 7621 megasas_destroy_irqs(instance); 7622 7623 if (instance->adapter_type != MFI_SERIES) 7624 megasas_release_fusion(instance); 7625 else 7626 megasas_release_mfi(instance); 7627 7628 if (instance->msix_vectors) 7629 pci_free_irq_vectors(instance->pdev); 7630 instance->msix_vectors = 0; 7631 7632 if (instance->fw_crash_state != UNAVAILABLE) 7633 megasas_free_host_crash_buffer(instance); 7634 7635 if (instance->adapter_type != MFI_SERIES) 7636 megasas_fusion_stop_watchdog(instance); 7637fail_init_mfi: 7638 scsi_host_put(host); 7639fail_alloc_instance: 7640 pci_disable_device(pdev); 7641 7642 return -ENODEV; 7643} 7644 7645/** 7646 * megasas_flush_cache - Requests FW to flush all its caches 7647 * @instance: Adapter soft state 7648 */ 7649static void megasas_flush_cache(struct megasas_instance *instance) 7650{ 7651 struct megasas_cmd *cmd; 7652 struct megasas_dcmd_frame *dcmd; 7653 7654 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7655 return; 7656 7657 cmd = megasas_get_cmd(instance); 7658 7659 if (!cmd) 7660 return; 7661 7662 dcmd = &cmd->frame->dcmd; 7663 7664 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7665 7666 dcmd->cmd = MFI_CMD_DCMD; 7667 dcmd->cmd_status = 0x0; 7668 dcmd->sge_count = 0; 7669 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7670 dcmd->timeout = 0; 7671 dcmd->pad_0 = 0; 7672 dcmd->data_xfer_len = 0; 7673 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 7674 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 7675 7676 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7677 != DCMD_SUCCESS) { 7678 dev_err(&instance->pdev->dev, 7679 "return from %s %d\n", __func__, __LINE__); 7680 return; 7681 } 7682 7683 megasas_return_cmd(instance, cmd); 7684} 7685 7686/** 7687 * megasas_shutdown_controller - Instructs FW to shutdown the controller 7688 * @instance: Adapter soft state 7689 * @opcode: Shutdown/Hibernate 7690 */ 7691static void megasas_shutdown_controller(struct megasas_instance *instance, 7692 u32 opcode) 7693{ 7694 struct megasas_cmd *cmd; 7695 struct megasas_dcmd_frame *dcmd; 7696 7697 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7698 return; 7699 7700 cmd = megasas_get_cmd(instance); 7701 7702 if (!cmd) 7703 return; 7704 7705 if (instance->aen_cmd) 7706 megasas_issue_blocked_abort_cmd(instance, 7707 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 7708 if (instance->map_update_cmd) 7709 megasas_issue_blocked_abort_cmd(instance, 7710 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 7711 if (instance->jbod_seq_cmd) 7712 megasas_issue_blocked_abort_cmd(instance, 7713 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 7714 7715 dcmd = &cmd->frame->dcmd; 7716 7717 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7718 7719 dcmd->cmd = MFI_CMD_DCMD; 7720 dcmd->cmd_status = 0x0; 7721 dcmd->sge_count = 0; 7722 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7723 dcmd->timeout = 0; 7724 dcmd->pad_0 = 0; 7725 dcmd->data_xfer_len = 0; 7726 dcmd->opcode = cpu_to_le32(opcode); 7727 7728 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7729 != DCMD_SUCCESS) { 7730 dev_err(&instance->pdev->dev, 7731 "return from %s %d\n", __func__, __LINE__); 7732 return; 7733 } 7734 7735 megasas_return_cmd(instance, cmd); 7736} 7737 7738/** 7739 * megasas_suspend - driver suspend entry point 7740 * @dev: Device structure 7741 */ 7742static int __maybe_unused 7743megasas_suspend(struct device *dev) 7744{ 7745 struct megasas_instance *instance; 7746 7747 instance = dev_get_drvdata(dev); 7748 7749 if (!instance) 7750 return 0; 7751 7752 instance->unload = 1; 7753 7754 dev_info(dev, "%s is called\n", __func__); 7755 7756 /* Shutdown SR-IOV heartbeat timer */ 7757 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7758 timer_delete_sync(&instance->sriov_heartbeat_timer); 7759 7760 /* Stop the FW fault detection watchdog */ 7761 if (instance->adapter_type != MFI_SERIES) 7762 megasas_fusion_stop_watchdog(instance); 7763 7764 megasas_flush_cache(instance); 7765 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 7766 7767 /* cancel the delayed work if this work still in queue */ 7768 if (instance->ev != NULL) { 7769 struct megasas_aen_event *ev = instance->ev; 7770 cancel_delayed_work_sync(&ev->hotplug_work); 7771 instance->ev = NULL; 7772 } 7773 7774 tasklet_kill(&instance->isr_tasklet); 7775 7776 pci_set_drvdata(instance->pdev, instance); 7777 instance->instancet->disable_intr(instance); 7778 7779 megasas_destroy_irqs(instance); 7780 7781 if (instance->msix_vectors) 7782 pci_free_irq_vectors(instance->pdev); 7783 7784 return 0; 7785} 7786 7787/** 7788 * megasas_resume- driver resume entry point 7789 * @dev: Device structure 7790 */ 7791static int __maybe_unused 7792megasas_resume(struct device *dev) 7793{ 7794 int rval; 7795 struct Scsi_Host *host; 7796 struct megasas_instance *instance; 7797 u32 status_reg; 7798 7799 instance = dev_get_drvdata(dev); 7800 7801 if (!instance) 7802 return 0; 7803 7804 host = instance->host; 7805 7806 dev_info(dev, "%s is called\n", __func__); 7807 7808 /* 7809 * We expect the FW state to be READY 7810 */ 7811 7812 if (megasas_transition_to_ready(instance, 0)) { 7813 dev_info(&instance->pdev->dev, 7814 "Failed to transition controller to ready from %s!\n", 7815 __func__); 7816 if (instance->adapter_type != MFI_SERIES) { 7817 status_reg = 7818 instance->instancet->read_fw_status_reg(instance); 7819 if (!(status_reg & MFI_RESET_ADAPTER) || 7820 ((megasas_adp_reset_wait_for_ready 7821 (instance, true, 0)) == FAILED)) 7822 goto fail_ready_state; 7823 } else { 7824 atomic_set(&instance->fw_reset_no_pci_access, 1); 7825 instance->instancet->adp_reset 7826 (instance, instance->reg_set); 7827 atomic_set(&instance->fw_reset_no_pci_access, 0); 7828 7829 /* waiting for about 30 seconds before retry */ 7830 ssleep(30); 7831 7832 if (megasas_transition_to_ready(instance, 0)) 7833 goto fail_ready_state; 7834 } 7835 7836 dev_info(&instance->pdev->dev, 7837 "FW restarted successfully from %s!\n", 7838 __func__); 7839 } 7840 if (megasas_set_dma_mask(instance)) 7841 goto fail_set_dma_mask; 7842 7843 /* 7844 * Initialize MFI Firmware 7845 */ 7846 7847 atomic_set(&instance->fw_outstanding, 0); 7848 atomic_set(&instance->ldio_outstanding, 0); 7849 7850 /* Now re-enable MSI-X */ 7851 if (instance->msix_vectors) 7852 megasas_alloc_irq_vectors(instance); 7853 7854 if (!instance->msix_vectors) { 7855 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, 7856 PCI_IRQ_INTX); 7857 if (rval < 0) 7858 goto fail_reenable_msix; 7859 } 7860 7861 megasas_setup_reply_map(instance); 7862 7863 if (instance->adapter_type != MFI_SERIES) { 7864 megasas_reset_reply_desc(instance); 7865 if (megasas_ioc_init_fusion(instance)) { 7866 megasas_free_cmds(instance); 7867 megasas_free_cmds_fusion(instance); 7868 goto fail_init_mfi; 7869 } 7870 if (!megasas_get_map_info(instance)) 7871 megasas_sync_map_info(instance); 7872 } else { 7873 *instance->producer = 0; 7874 *instance->consumer = 0; 7875 if (megasas_issue_init_mfi(instance)) 7876 goto fail_init_mfi; 7877 } 7878 7879 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) 7880 goto fail_init_mfi; 7881 7882 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 7883 (unsigned long)instance); 7884 7885 if (instance->msix_vectors ? 7886 megasas_setup_irqs_msix(instance, 0) : 7887 megasas_setup_irqs_ioapic(instance)) 7888 goto fail_init_mfi; 7889 7890 if (instance->adapter_type != MFI_SERIES) 7891 megasas_setup_irq_poll(instance); 7892 7893 /* Re-launch SR-IOV heartbeat timer */ 7894 if (instance->requestorId) { 7895 if (!megasas_sriov_start_heartbeat(instance, 0)) 7896 megasas_start_timer(instance); 7897 else { 7898 instance->skip_heartbeat_timer_del = 1; 7899 goto fail_init_mfi; 7900 } 7901 } 7902 7903 instance->instancet->enable_intr(instance); 7904 megasas_setup_jbod_map(instance); 7905 instance->unload = 0; 7906 7907 /* 7908 * Initiate AEN (Asynchronous Event Notification) 7909 */ 7910 if (megasas_start_aen(instance)) 7911 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 7912 7913 /* Re-launch FW fault watchdog */ 7914 if (instance->adapter_type != MFI_SERIES) 7915 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 7916 goto fail_start_watchdog; 7917 7918 return 0; 7919 7920fail_start_watchdog: 7921 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7922 timer_delete_sync(&instance->sriov_heartbeat_timer); 7923fail_init_mfi: 7924 megasas_free_ctrl_dma_buffers(instance); 7925 megasas_free_ctrl_mem(instance); 7926 scsi_host_put(host); 7927 7928fail_reenable_msix: 7929fail_set_dma_mask: 7930fail_ready_state: 7931 7932 return -ENODEV; 7933} 7934 7935static inline int 7936megasas_wait_for_adapter_operational(struct megasas_instance *instance) 7937{ 7938 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 7939 int i; 7940 u8 adp_state; 7941 7942 for (i = 0; i < wait_time; i++) { 7943 adp_state = atomic_read(&instance->adprecovery); 7944 if ((adp_state == MEGASAS_HBA_OPERATIONAL) || 7945 (adp_state == MEGASAS_HW_CRITICAL_ERROR)) 7946 break; 7947 7948 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 7949 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 7950 7951 msleep(1000); 7952 } 7953 7954 if (adp_state != MEGASAS_HBA_OPERATIONAL) { 7955 dev_info(&instance->pdev->dev, 7956 "%s HBA failed to become operational, adp_state %d\n", 7957 __func__, adp_state); 7958 return 1; 7959 } 7960 7961 return 0; 7962} 7963 7964/** 7965 * megasas_detach_one - PCI hot"un"plug entry point 7966 * @pdev: PCI device structure 7967 */ 7968static void megasas_detach_one(struct pci_dev *pdev) 7969{ 7970 int i; 7971 struct Scsi_Host *host; 7972 struct megasas_instance *instance; 7973 struct fusion_context *fusion; 7974 size_t pd_seq_map_sz; 7975 7976 instance = pci_get_drvdata(pdev); 7977 7978 if (!instance) 7979 return; 7980 7981 host = instance->host; 7982 fusion = instance->ctrl_context; 7983 7984 /* Shutdown SR-IOV heartbeat timer */ 7985 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7986 timer_delete_sync(&instance->sriov_heartbeat_timer); 7987 7988 /* Stop the FW fault detection watchdog */ 7989 if (instance->adapter_type != MFI_SERIES) 7990 megasas_fusion_stop_watchdog(instance); 7991 7992 if (instance->fw_crash_state != UNAVAILABLE) 7993 megasas_free_host_crash_buffer(instance); 7994 scsi_remove_host(instance->host); 7995 instance->unload = 1; 7996 7997 if (megasas_wait_for_adapter_operational(instance)) 7998 goto skip_firing_dcmds; 7999 8000 megasas_flush_cache(instance); 8001 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 8002 8003skip_firing_dcmds: 8004 /* cancel the delayed work if this work still in queue*/ 8005 if (instance->ev != NULL) { 8006 struct megasas_aen_event *ev = instance->ev; 8007 cancel_delayed_work_sync(&ev->hotplug_work); 8008 instance->ev = NULL; 8009 } 8010 8011 /* cancel all wait events */ 8012 wake_up_all(&instance->int_cmd_wait_q); 8013 8014 tasklet_kill(&instance->isr_tasklet); 8015 8016 /* 8017 * Take the instance off the instance array. Note that we will not 8018 * decrement the max_index. We let this array be sparse array 8019 */ 8020 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8021 if (megasas_mgmt_info.instance[i] == instance) { 8022 megasas_mgmt_info.count--; 8023 megasas_mgmt_info.instance[i] = NULL; 8024 8025 break; 8026 } 8027 } 8028 8029 instance->instancet->disable_intr(instance); 8030 8031 megasas_destroy_irqs(instance); 8032 8033 if (instance->msix_vectors) 8034 pci_free_irq_vectors(instance->pdev); 8035 8036 if (instance->adapter_type >= VENTURA_SERIES) { 8037 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 8038 kfree(fusion->stream_detect_by_ld[i]); 8039 kfree(fusion->stream_detect_by_ld); 8040 fusion->stream_detect_by_ld = NULL; 8041 } 8042 8043 8044 if (instance->adapter_type != MFI_SERIES) { 8045 megasas_release_fusion(instance); 8046 pd_seq_map_sz = 8047 struct_size_t(struct MR_PD_CFG_SEQ_NUM_SYNC, 8048 seq, MAX_PHYSICAL_DEVICES); 8049 for (i = 0; i < 2 ; i++) { 8050 if (fusion->ld_map[i]) 8051 dma_free_coherent(&instance->pdev->dev, 8052 fusion->max_map_sz, 8053 fusion->ld_map[i], 8054 fusion->ld_map_phys[i]); 8055 if (fusion->ld_drv_map[i]) { 8056 if (is_vmalloc_addr(fusion->ld_drv_map[i])) 8057 vfree(fusion->ld_drv_map[i]); 8058 else 8059 free_pages((ulong)fusion->ld_drv_map[i], 8060 fusion->drv_map_pages); 8061 } 8062 8063 if (fusion->pd_seq_sync[i]) 8064 dma_free_coherent(&instance->pdev->dev, 8065 pd_seq_map_sz, 8066 fusion->pd_seq_sync[i], 8067 fusion->pd_seq_phys[i]); 8068 } 8069 } else { 8070 megasas_release_mfi(instance); 8071 } 8072 8073 if (instance->vf_affiliation) 8074 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * 8075 sizeof(struct MR_LD_VF_AFFILIATION), 8076 instance->vf_affiliation, 8077 instance->vf_affiliation_h); 8078 8079 if (instance->vf_affiliation_111) 8080 dma_free_coherent(&pdev->dev, 8081 sizeof(struct MR_LD_VF_AFFILIATION_111), 8082 instance->vf_affiliation_111, 8083 instance->vf_affiliation_111_h); 8084 8085 if (instance->hb_host_mem) 8086 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), 8087 instance->hb_host_mem, 8088 instance->hb_host_mem_h); 8089 8090 megasas_free_ctrl_dma_buffers(instance); 8091 8092 megasas_free_ctrl_mem(instance); 8093 8094 megasas_destroy_debugfs(instance); 8095 8096 scsi_host_put(host); 8097 8098 pci_disable_device(pdev); 8099} 8100 8101/** 8102 * megasas_shutdown - Shutdown entry point 8103 * @pdev: PCI device structure 8104 */ 8105static void megasas_shutdown(struct pci_dev *pdev) 8106{ 8107 struct megasas_instance *instance = pci_get_drvdata(pdev); 8108 8109 if (!instance) 8110 return; 8111 8112 instance->unload = 1; 8113 8114 if (megasas_wait_for_adapter_operational(instance)) 8115 goto skip_firing_dcmds; 8116 8117 megasas_flush_cache(instance); 8118 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 8119 8120skip_firing_dcmds: 8121 instance->instancet->disable_intr(instance); 8122 megasas_destroy_irqs(instance); 8123 8124 if (instance->msix_vectors) 8125 pci_free_irq_vectors(instance->pdev); 8126} 8127 8128/* 8129 * megasas_mgmt_open - char node "open" entry point 8130 * @inode: char node inode 8131 * @filep: char node file 8132 */ 8133static int megasas_mgmt_open(struct inode *inode, struct file *filep) 8134{ 8135 /* 8136 * Allow only those users with admin rights 8137 */ 8138 if (!capable(CAP_SYS_ADMIN)) 8139 return -EACCES; 8140 8141 return 0; 8142} 8143 8144/* 8145 * megasas_mgmt_fasync - Async notifier registration from applications 8146 * @fd: char node file descriptor number 8147 * @filep: char node file 8148 * @mode: notifier on/off 8149 * 8150 * This function adds the calling process to a driver global queue. When an 8151 * event occurs, SIGIO will be sent to all processes in this queue. 8152 */ 8153static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 8154{ 8155 int rc; 8156 8157 mutex_lock(&megasas_async_queue_mutex); 8158 8159 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 8160 8161 mutex_unlock(&megasas_async_queue_mutex); 8162 8163 if (rc >= 0) { 8164 /* For sanity check when we get ioctl */ 8165 filep->private_data = filep; 8166 return 0; 8167 } 8168 8169 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 8170 8171 return rc; 8172} 8173 8174/* 8175 * megasas_mgmt_poll - char node "poll" entry point 8176 * @filep: char node file 8177 * @wait: Events to poll for 8178 */ 8179static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) 8180{ 8181 __poll_t mask; 8182 unsigned long flags; 8183 8184 poll_wait(file, &megasas_poll_wait, wait); 8185 spin_lock_irqsave(&poll_aen_lock, flags); 8186 if (megasas_poll_wait_aen) 8187 mask = (EPOLLIN | EPOLLRDNORM); 8188 else 8189 mask = 0; 8190 megasas_poll_wait_aen = 0; 8191 spin_unlock_irqrestore(&poll_aen_lock, flags); 8192 return mask; 8193} 8194 8195/* 8196 * megasas_set_crash_dump_params_ioctl: 8197 * Send CRASH_DUMP_MODE DCMD to all controllers 8198 * @cmd: MFI command frame 8199 */ 8200 8201static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 8202{ 8203 struct megasas_instance *local_instance; 8204 int i, error = 0; 8205 int crash_support; 8206 8207 crash_support = cmd->frame->dcmd.mbox.w[0]; 8208 8209 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8210 local_instance = megasas_mgmt_info.instance[i]; 8211 if (local_instance && local_instance->crash_dump_drv_support) { 8212 if ((atomic_read(&local_instance->adprecovery) == 8213 MEGASAS_HBA_OPERATIONAL) && 8214 !megasas_set_crash_dump_params(local_instance, 8215 crash_support)) { 8216 local_instance->crash_dump_app_support = 8217 crash_support; 8218 dev_info(&local_instance->pdev->dev, 8219 "Application firmware crash " 8220 "dump mode set success\n"); 8221 error = 0; 8222 } else { 8223 dev_info(&local_instance->pdev->dev, 8224 "Application firmware crash " 8225 "dump mode set failed\n"); 8226 error = -1; 8227 } 8228 } 8229 } 8230 return error; 8231} 8232 8233/** 8234 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 8235 * @instance: Adapter soft state 8236 * @user_ioc: User's ioctl packet 8237 * @ioc: ioctl packet 8238 */ 8239static int 8240megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 8241 struct megasas_iocpacket __user * user_ioc, 8242 struct megasas_iocpacket *ioc) 8243{ 8244 struct megasas_sge64 *kern_sge64 = NULL; 8245 struct megasas_sge32 *kern_sge32 = NULL; 8246 struct megasas_cmd *cmd; 8247 void *kbuff_arr[MAX_IOCTL_SGE]; 8248 dma_addr_t buf_handle = 0; 8249 int error = 0, i; 8250 void *sense = NULL; 8251 dma_addr_t sense_handle; 8252 void *sense_ptr; 8253 u32 opcode = 0; 8254 int ret = DCMD_SUCCESS; 8255 8256 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 8257 8258 if (ioc->sge_count > MAX_IOCTL_SGE) { 8259 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 8260 ioc->sge_count, MAX_IOCTL_SGE); 8261 return -EINVAL; 8262 } 8263 8264 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || 8265 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && 8266 !instance->support_nvme_passthru) || 8267 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && 8268 !instance->support_pci_lane_margining)) { 8269 dev_err(&instance->pdev->dev, 8270 "Received invalid ioctl command 0x%x\n", 8271 ioc->frame.hdr.cmd); 8272 return -ENOTSUPP; 8273 } 8274 8275 cmd = megasas_get_cmd(instance); 8276 if (!cmd) { 8277 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 8278 return -ENOMEM; 8279 } 8280 8281 /* 8282 * User's IOCTL packet has 2 frames (maximum). Copy those two 8283 * frames into our cmd's frames. cmd->frame's context will get 8284 * overwritten when we copy from user's frames. So set that value 8285 * alone separately 8286 */ 8287 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 8288 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 8289 cmd->frame->hdr.pad_0 = 0; 8290 8291 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); 8292 8293 if (instance->consistent_mask_64bit) 8294 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | 8295 MFI_FRAME_SENSE64)); 8296 else 8297 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | 8298 MFI_FRAME_SENSE64)); 8299 8300 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) 8301 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 8302 8303 if (opcode == MR_DCMD_CTRL_SHUTDOWN) { 8304 mutex_lock(&instance->reset_mutex); 8305 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 8306 megasas_return_cmd(instance, cmd); 8307 mutex_unlock(&instance->reset_mutex); 8308 return -1; 8309 } 8310 mutex_unlock(&instance->reset_mutex); 8311 } 8312 8313 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 8314 error = megasas_set_crash_dump_params_ioctl(cmd); 8315 megasas_return_cmd(instance, cmd); 8316 return error; 8317 } 8318 8319 /* 8320 * The management interface between applications and the fw uses 8321 * MFI frames. E.g, RAID configuration changes, LD property changes 8322 * etc are accomplishes through different kinds of MFI frames. The 8323 * driver needs to care only about substituting user buffers with 8324 * kernel buffers in SGLs. The location of SGL is embedded in the 8325 * struct iocpacket itself. 8326 */ 8327 if (instance->consistent_mask_64bit) 8328 kern_sge64 = (struct megasas_sge64 *) 8329 ((unsigned long)cmd->frame + ioc->sgl_off); 8330 else 8331 kern_sge32 = (struct megasas_sge32 *) 8332 ((unsigned long)cmd->frame + ioc->sgl_off); 8333 8334 /* 8335 * For each user buffer, create a mirror buffer and copy in 8336 */ 8337 for (i = 0; i < ioc->sge_count; i++) { 8338 if (!ioc->sgl[i].iov_len) 8339 continue; 8340 8341 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 8342 ioc->sgl[i].iov_len, 8343 &buf_handle, GFP_KERNEL); 8344 if (!kbuff_arr[i]) { 8345 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 8346 "kernel SGL buffer for IOCTL\n"); 8347 error = -ENOMEM; 8348 goto out; 8349 } 8350 8351 /* 8352 * We don't change the dma_coherent_mask, so 8353 * dma_alloc_coherent only returns 32bit addresses 8354 */ 8355 if (instance->consistent_mask_64bit) { 8356 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); 8357 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8358 } else { 8359 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 8360 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8361 } 8362 8363 /* 8364 * We created a kernel buffer corresponding to the 8365 * user buffer. Now copy in from the user buffer 8366 */ 8367 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 8368 (u32) (ioc->sgl[i].iov_len))) { 8369 error = -EFAULT; 8370 goto out; 8371 } 8372 } 8373 8374 if (ioc->sense_len) { 8375 /* make sure the pointer is part of the frame */ 8376 if (ioc->sense_off > 8377 (sizeof(union megasas_frame) - sizeof(__le64))) { 8378 error = -EINVAL; 8379 goto out; 8380 } 8381 8382 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 8383 &sense_handle, GFP_KERNEL); 8384 if (!sense) { 8385 error = -ENOMEM; 8386 goto out; 8387 } 8388 8389 /* always store 64 bits regardless of addressing */ 8390 sense_ptr = (void *)cmd->frame + ioc->sense_off; 8391 put_unaligned_le64(sense_handle, sense_ptr); 8392 } 8393 8394 /* 8395 * Set the sync_cmd flag so that the ISR knows not to complete this 8396 * cmd to the SCSI mid-layer 8397 */ 8398 cmd->sync_cmd = 1; 8399 8400 ret = megasas_issue_blocked_cmd(instance, cmd, 0); 8401 switch (ret) { 8402 case DCMD_INIT: 8403 case DCMD_BUSY: 8404 cmd->sync_cmd = 0; 8405 dev_err(&instance->pdev->dev, 8406 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", 8407 __func__, __LINE__, cmd->frame->hdr.cmd, opcode, 8408 cmd->cmd_status_drv); 8409 error = -EBUSY; 8410 goto out; 8411 } 8412 8413 cmd->sync_cmd = 0; 8414 8415 if (instance->unload == 1) { 8416 dev_info(&instance->pdev->dev, "Driver unload is in progress " 8417 "don't submit data to application\n"); 8418 goto out; 8419 } 8420 /* 8421 * copy out the kernel buffers to user buffers 8422 */ 8423 for (i = 0; i < ioc->sge_count; i++) { 8424 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 8425 ioc->sgl[i].iov_len)) { 8426 error = -EFAULT; 8427 goto out; 8428 } 8429 } 8430 8431 /* 8432 * copy out the sense 8433 */ 8434 if (ioc->sense_len) { 8435 void __user *uptr; 8436 /* 8437 * sense_ptr points to the location that has the user 8438 * sense buffer address 8439 */ 8440 sense_ptr = (void *)ioc->frame.raw + ioc->sense_off; 8441 if (in_compat_syscall()) 8442 uptr = compat_ptr(get_unaligned((compat_uptr_t *) 8443 sense_ptr)); 8444 else 8445 uptr = get_unaligned((void __user **)sense_ptr); 8446 8447 if (copy_to_user(uptr, sense, ioc->sense_len)) { 8448 dev_err(&instance->pdev->dev, "Failed to copy out to user " 8449 "sense data\n"); 8450 error = -EFAULT; 8451 goto out; 8452 } 8453 } 8454 8455 /* 8456 * copy the status codes returned by the fw 8457 */ 8458 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 8459 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 8460 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 8461 error = -EFAULT; 8462 } 8463 8464out: 8465 if (sense) { 8466 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 8467 sense, sense_handle); 8468 } 8469 8470 for (i = 0; i < ioc->sge_count; i++) { 8471 if (kbuff_arr[i]) { 8472 if (instance->consistent_mask_64bit) 8473 dma_free_coherent(&instance->pdev->dev, 8474 le32_to_cpu(kern_sge64[i].length), 8475 kbuff_arr[i], 8476 le64_to_cpu(kern_sge64[i].phys_addr)); 8477 else 8478 dma_free_coherent(&instance->pdev->dev, 8479 le32_to_cpu(kern_sge32[i].length), 8480 kbuff_arr[i], 8481 le32_to_cpu(kern_sge32[i].phys_addr)); 8482 kbuff_arr[i] = NULL; 8483 } 8484 } 8485 8486 megasas_return_cmd(instance, cmd); 8487 return error; 8488} 8489 8490static struct megasas_iocpacket * 8491megasas_compat_iocpacket_get_user(void __user *arg) 8492{ 8493 struct megasas_iocpacket *ioc; 8494 struct compat_megasas_iocpacket __user *cioc = arg; 8495 size_t size; 8496 int err = -EFAULT; 8497 int i; 8498 8499 ioc = kzalloc(sizeof(*ioc), GFP_KERNEL); 8500 if (!ioc) 8501 return ERR_PTR(-ENOMEM); 8502 size = offsetof(struct megasas_iocpacket, frame) + sizeof(ioc->frame); 8503 if (copy_from_user(ioc, arg, size)) 8504 goto out; 8505 8506 for (i = 0; i < MAX_IOCTL_SGE; i++) { 8507 compat_uptr_t iov_base; 8508 8509 if (get_user(iov_base, &cioc->sgl[i].iov_base) || 8510 get_user(ioc->sgl[i].iov_len, &cioc->sgl[i].iov_len)) 8511 goto out; 8512 8513 ioc->sgl[i].iov_base = compat_ptr(iov_base); 8514 } 8515 8516 return ioc; 8517out: 8518 kfree(ioc); 8519 return ERR_PTR(err); 8520} 8521 8522static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 8523{ 8524 struct megasas_iocpacket __user *user_ioc = 8525 (struct megasas_iocpacket __user *)arg; 8526 struct megasas_iocpacket *ioc; 8527 struct megasas_instance *instance; 8528 int error; 8529 8530 if (in_compat_syscall()) 8531 ioc = megasas_compat_iocpacket_get_user(user_ioc); 8532 else 8533 ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket)); 8534 8535 if (IS_ERR(ioc)) 8536 return PTR_ERR(ioc); 8537 8538 instance = megasas_lookup_instance(ioc->host_no); 8539 if (!instance) { 8540 error = -ENODEV; 8541 goto out_kfree_ioc; 8542 } 8543 8544 /* Block ioctls in VF mode */ 8545 if (instance->requestorId && !allow_vf_ioctls) { 8546 error = -ENODEV; 8547 goto out_kfree_ioc; 8548 } 8549 8550 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8551 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 8552 error = -ENODEV; 8553 goto out_kfree_ioc; 8554 } 8555 8556 if (instance->unload == 1) { 8557 error = -ENODEV; 8558 goto out_kfree_ioc; 8559 } 8560 8561 if (down_interruptible(&instance->ioctl_sem)) { 8562 error = -ERESTARTSYS; 8563 goto out_kfree_ioc; 8564 } 8565 8566 if (megasas_wait_for_adapter_operational(instance)) { 8567 error = -ENODEV; 8568 goto out_up; 8569 } 8570 8571 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 8572out_up: 8573 up(&instance->ioctl_sem); 8574 8575out_kfree_ioc: 8576 kfree(ioc); 8577 return error; 8578} 8579 8580static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 8581{ 8582 struct megasas_instance *instance; 8583 struct megasas_aen aen; 8584 int error; 8585 8586 if (file->private_data != file) { 8587 printk(KERN_DEBUG "megasas: fasync_helper was not " 8588 "called first\n"); 8589 return -EINVAL; 8590 } 8591 8592 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 8593 return -EFAULT; 8594 8595 instance = megasas_lookup_instance(aen.host_no); 8596 8597 if (!instance) 8598 return -ENODEV; 8599 8600 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8601 return -ENODEV; 8602 } 8603 8604 if (instance->unload == 1) { 8605 return -ENODEV; 8606 } 8607 8608 if (megasas_wait_for_adapter_operational(instance)) 8609 return -ENODEV; 8610 8611 mutex_lock(&instance->reset_mutex); 8612 error = megasas_register_aen(instance, aen.seq_num, 8613 aen.class_locale_word); 8614 mutex_unlock(&instance->reset_mutex); 8615 return error; 8616} 8617 8618/** 8619 * megasas_mgmt_ioctl - char node ioctl entry point 8620 * @file: char device file pointer 8621 * @cmd: ioctl command 8622 * @arg: ioctl command arguments address 8623 */ 8624static long 8625megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 8626{ 8627 switch (cmd) { 8628 case MEGASAS_IOC_FIRMWARE: 8629 return megasas_mgmt_ioctl_fw(file, arg); 8630 8631 case MEGASAS_IOC_GET_AEN: 8632 return megasas_mgmt_ioctl_aen(file, arg); 8633 } 8634 8635 return -ENOTTY; 8636} 8637 8638#ifdef CONFIG_COMPAT 8639static long 8640megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 8641 unsigned long arg) 8642{ 8643 switch (cmd) { 8644 case MEGASAS_IOC_FIRMWARE32: 8645 return megasas_mgmt_ioctl_fw(file, arg); 8646 case MEGASAS_IOC_GET_AEN: 8647 return megasas_mgmt_ioctl_aen(file, arg); 8648 } 8649 8650 return -ENOTTY; 8651} 8652#endif 8653 8654/* 8655 * File operations structure for management interface 8656 */ 8657static const struct file_operations megasas_mgmt_fops = { 8658 .owner = THIS_MODULE, 8659 .open = megasas_mgmt_open, 8660 .fasync = megasas_mgmt_fasync, 8661 .unlocked_ioctl = megasas_mgmt_ioctl, 8662 .poll = megasas_mgmt_poll, 8663#ifdef CONFIG_COMPAT 8664 .compat_ioctl = megasas_mgmt_compat_ioctl, 8665#endif 8666 .llseek = noop_llseek, 8667}; 8668 8669static SIMPLE_DEV_PM_OPS(megasas_pm_ops, megasas_suspend, megasas_resume); 8670 8671/* 8672 * PCI hotplug support registration structure 8673 */ 8674static struct pci_driver megasas_pci_driver = { 8675 8676 .name = "megaraid_sas", 8677 .id_table = megasas_pci_table, 8678 .probe = megasas_probe_one, 8679 .remove = megasas_detach_one, 8680 .driver.pm = &megasas_pm_ops, 8681 .shutdown = megasas_shutdown, 8682}; 8683 8684/* 8685 * Sysfs driver attributes 8686 */ 8687static ssize_t version_show(struct device_driver *dd, char *buf) 8688{ 8689 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 8690 MEGASAS_VERSION); 8691} 8692static DRIVER_ATTR_RO(version); 8693 8694static ssize_t release_date_show(struct device_driver *dd, char *buf) 8695{ 8696 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 8697 MEGASAS_RELDATE); 8698} 8699static DRIVER_ATTR_RO(release_date); 8700 8701static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) 8702{ 8703 return sprintf(buf, "%u\n", support_poll_for_event); 8704} 8705static DRIVER_ATTR_RO(support_poll_for_event); 8706 8707static ssize_t support_device_change_show(struct device_driver *dd, char *buf) 8708{ 8709 return sprintf(buf, "%u\n", support_device_change); 8710} 8711static DRIVER_ATTR_RO(support_device_change); 8712 8713static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) 8714{ 8715 return sprintf(buf, "%u\n", megasas_dbg_lvl); 8716} 8717 8718static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, 8719 size_t count) 8720{ 8721 int retval = count; 8722 8723 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 8724 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 8725 retval = -EINVAL; 8726 } 8727 return retval; 8728} 8729static DRIVER_ATTR_RW(dbg_lvl); 8730 8731static ssize_t 8732support_nvme_encapsulation_show(struct device_driver *dd, char *buf) 8733{ 8734 return sprintf(buf, "%u\n", support_nvme_encapsulation); 8735} 8736 8737static DRIVER_ATTR_RO(support_nvme_encapsulation); 8738 8739static ssize_t 8740support_pci_lane_margining_show(struct device_driver *dd, char *buf) 8741{ 8742 return sprintf(buf, "%u\n", support_pci_lane_margining); 8743} 8744 8745static DRIVER_ATTR_RO(support_pci_lane_margining); 8746 8747static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 8748{ 8749 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 8750 scsi_remove_device(sdev); 8751 scsi_device_put(sdev); 8752} 8753 8754/** 8755 * megasas_update_device_list - Update the PD and LD device list from FW 8756 * after an AEN event notification 8757 * @instance: Adapter soft state 8758 * @event_type: Indicates type of event (PD or LD event) 8759 * 8760 * @return: Success or failure 8761 * 8762 * Issue DCMDs to Firmware to update the internal device list in driver. 8763 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 8764 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 8765 */ 8766static 8767int megasas_update_device_list(struct megasas_instance *instance, 8768 int event_type) 8769{ 8770 int dcmd_ret; 8771 8772 if (instance->enable_fw_dev_list) { 8773 return megasas_host_device_list_query(instance, false); 8774 } else { 8775 if (event_type & SCAN_PD_CHANNEL) { 8776 dcmd_ret = megasas_get_pd_list(instance); 8777 if (dcmd_ret != DCMD_SUCCESS) 8778 return dcmd_ret; 8779 } 8780 8781 if (event_type & SCAN_VD_CHANNEL) { 8782 if (!instance->requestorId || 8783 megasas_get_ld_vf_affiliation(instance, 0)) { 8784 return megasas_ld_list_query(instance, 8785 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 8786 } 8787 } 8788 } 8789 return DCMD_SUCCESS; 8790} 8791 8792/** 8793 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer 8794 * after an AEN event notification 8795 * @instance: Adapter soft state 8796 * @scan_type: Indicates type of devices (PD/LD) to add 8797 * @return void 8798 */ 8799static 8800void megasas_add_remove_devices(struct megasas_instance *instance, 8801 int scan_type) 8802{ 8803 int i, j; 8804 u16 pd_index = 0; 8805 u16 ld_index = 0; 8806 u16 channel = 0, id = 0; 8807 struct Scsi_Host *host; 8808 struct scsi_device *sdev1; 8809 struct MR_HOST_DEVICE_LIST *targetid_list = NULL; 8810 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; 8811 8812 host = instance->host; 8813 8814 if (instance->enable_fw_dev_list) { 8815 targetid_list = instance->host_device_list_buf; 8816 for (i = 0; i < targetid_list->count; i++) { 8817 targetid_entry = &targetid_list->host_device_list[i]; 8818 if (targetid_entry->flags.u.bits.is_sys_pd) { 8819 channel = le16_to_cpu(targetid_entry->target_id) / 8820 MEGASAS_MAX_DEV_PER_CHANNEL; 8821 id = le16_to_cpu(targetid_entry->target_id) % 8822 MEGASAS_MAX_DEV_PER_CHANNEL; 8823 } else { 8824 channel = MEGASAS_MAX_PD_CHANNELS + 8825 (le16_to_cpu(targetid_entry->target_id) / 8826 MEGASAS_MAX_DEV_PER_CHANNEL); 8827 id = le16_to_cpu(targetid_entry->target_id) % 8828 MEGASAS_MAX_DEV_PER_CHANNEL; 8829 } 8830 sdev1 = scsi_device_lookup(host, channel, id, 0); 8831 if (!sdev1) { 8832 scsi_add_device(host, channel, id, 0); 8833 } else { 8834 scsi_device_put(sdev1); 8835 } 8836 } 8837 } 8838 8839 if (scan_type & SCAN_PD_CHANNEL) { 8840 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 8841 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8842 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; 8843 sdev1 = scsi_device_lookup(host, i, j, 0); 8844 if (instance->pd_list[pd_index].driveState == 8845 MR_PD_STATE_SYSTEM) { 8846 if (!sdev1) 8847 scsi_add_device(host, i, j, 0); 8848 else 8849 scsi_device_put(sdev1); 8850 } else { 8851 if (sdev1) 8852 megasas_remove_scsi_device(sdev1); 8853 } 8854 } 8855 } 8856 } 8857 8858 if (scan_type & SCAN_VD_CHANNEL) { 8859 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 8860 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8861 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 8862 sdev1 = scsi_device_lookup(host, 8863 MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8864 if (instance->ld_ids[ld_index] != 0xff) { 8865 if (!sdev1) 8866 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8867 else 8868 scsi_device_put(sdev1); 8869 } else { 8870 if (sdev1) 8871 megasas_remove_scsi_device(sdev1); 8872 } 8873 } 8874 } 8875 } 8876 8877} 8878 8879static void 8880megasas_aen_polling(struct work_struct *work) 8881{ 8882 struct megasas_aen_event *ev = 8883 container_of(work, struct megasas_aen_event, hotplug_work.work); 8884 struct megasas_instance *instance = ev->instance; 8885 union megasas_evt_class_locale class_locale; 8886 int event_type = 0; 8887 u32 seq_num; 8888 u16 ld_target_id; 8889 int error; 8890 u8 dcmd_ret = DCMD_SUCCESS; 8891 struct scsi_device *sdev1; 8892 8893 if (!instance) { 8894 printk(KERN_ERR "invalid instance!\n"); 8895 kfree(ev); 8896 return; 8897 } 8898 8899 /* Don't run the event workqueue thread if OCR is running */ 8900 mutex_lock(&instance->reset_mutex); 8901 8902 instance->ev = NULL; 8903 if (instance->evt_detail) { 8904 megasas_decode_evt(instance); 8905 8906 switch (le32_to_cpu(instance->evt_detail->code)) { 8907 8908 case MR_EVT_PD_INSERTED: 8909 case MR_EVT_PD_REMOVED: 8910 event_type = SCAN_PD_CHANNEL; 8911 break; 8912 8913 case MR_EVT_LD_OFFLINE: 8914 case MR_EVT_LD_DELETED: 8915 ld_target_id = instance->evt_detail->args.ld.target_id; 8916 sdev1 = scsi_device_lookup(instance->host, 8917 MEGASAS_MAX_PD_CHANNELS + 8918 (ld_target_id / MEGASAS_MAX_DEV_PER_CHANNEL), 8919 (ld_target_id % MEGASAS_MAX_DEV_PER_CHANNEL), 8920 0); 8921 if (sdev1) { 8922 mutex_unlock(&instance->reset_mutex); 8923 megasas_remove_scsi_device(sdev1); 8924 mutex_lock(&instance->reset_mutex); 8925 } 8926 8927 event_type = SCAN_VD_CHANNEL; 8928 break; 8929 case MR_EVT_LD_CREATED: 8930 event_type = SCAN_VD_CHANNEL; 8931 break; 8932 8933 case MR_EVT_CFG_CLEARED: 8934 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 8935 case MR_EVT_FOREIGN_CFG_IMPORTED: 8936 case MR_EVT_LD_STATE_CHANGE: 8937 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; 8938 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 8939 instance->host->host_no); 8940 break; 8941 8942 case MR_EVT_CTRL_PROP_CHANGED: 8943 dcmd_ret = megasas_get_ctrl_info(instance); 8944 if (dcmd_ret == DCMD_SUCCESS && 8945 instance->snapdump_wait_time) { 8946 megasas_get_snapdump_properties(instance); 8947 dev_info(&instance->pdev->dev, 8948 "Snap dump wait time\t: %d\n", 8949 instance->snapdump_wait_time); 8950 } 8951 break; 8952 default: 8953 event_type = 0; 8954 break; 8955 } 8956 } else { 8957 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 8958 mutex_unlock(&instance->reset_mutex); 8959 kfree(ev); 8960 return; 8961 } 8962 8963 if (event_type) 8964 dcmd_ret = megasas_update_device_list(instance, event_type); 8965 8966 mutex_unlock(&instance->reset_mutex); 8967 8968 if (event_type && dcmd_ret == DCMD_SUCCESS) 8969 megasas_add_remove_devices(instance, event_type); 8970 8971 if (dcmd_ret == DCMD_SUCCESS) 8972 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 8973 else 8974 seq_num = instance->last_seq_num; 8975 8976 /* Register AEN with FW for latest sequence number plus 1 */ 8977 class_locale.members.reserved = 0; 8978 class_locale.members.locale = MR_EVT_LOCALE_ALL; 8979 class_locale.members.class = MR_EVT_CLASS_DEBUG; 8980 8981 if (instance->aen_cmd != NULL) { 8982 kfree(ev); 8983 return; 8984 } 8985 8986 mutex_lock(&instance->reset_mutex); 8987 error = megasas_register_aen(instance, seq_num, 8988 class_locale.word); 8989 if (error) 8990 dev_err(&instance->pdev->dev, 8991 "register aen failed error %x\n", error); 8992 8993 mutex_unlock(&instance->reset_mutex); 8994 kfree(ev); 8995} 8996 8997/** 8998 * megasas_init - Driver load entry point 8999 */ 9000static int __init megasas_init(void) 9001{ 9002 int rval; 9003 9004 /* 9005 * Booted in kdump kernel, minimize memory footprints by 9006 * disabling few features 9007 */ 9008 if (reset_devices) { 9009 msix_vectors = 1; 9010 rdpq_enable = 0; 9011 dual_qdepth_disable = 1; 9012 poll_queues = 0; 9013 } 9014 9015 /* 9016 * Announce driver version and other information 9017 */ 9018 pr_info("megasas: %s\n", MEGASAS_VERSION); 9019 9020 megasas_dbg_lvl = 0; 9021 support_poll_for_event = 2; 9022 support_device_change = 1; 9023 support_nvme_encapsulation = true; 9024 support_pci_lane_margining = true; 9025 9026 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 9027 9028 /* 9029 * Register character device node 9030 */ 9031 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 9032 9033 if (rval < 0) { 9034 printk(KERN_DEBUG "megasas: failed to open device node\n"); 9035 return rval; 9036 } 9037 9038 megasas_mgmt_majorno = rval; 9039 9040 megasas_init_debugfs(); 9041 9042 /* 9043 * Register ourselves as PCI hotplug module 9044 */ 9045 rval = pci_register_driver(&megasas_pci_driver); 9046 9047 if (rval) { 9048 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 9049 goto err_pcidrv; 9050 } 9051 9052 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 9053 (event_log_level > MFI_EVT_CLASS_DEAD)) { 9054 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"); 9055 event_log_level = MFI_EVT_CLASS_CRITICAL; 9056 } 9057 9058 rval = driver_create_file(&megasas_pci_driver.driver, 9059 &driver_attr_version); 9060 if (rval) 9061 goto err_dcf_attr_ver; 9062 9063 rval = driver_create_file(&megasas_pci_driver.driver, 9064 &driver_attr_release_date); 9065 if (rval) 9066 goto err_dcf_rel_date; 9067 9068 rval = driver_create_file(&megasas_pci_driver.driver, 9069 &driver_attr_support_poll_for_event); 9070 if (rval) 9071 goto err_dcf_support_poll_for_event; 9072 9073 rval = driver_create_file(&megasas_pci_driver.driver, 9074 &driver_attr_dbg_lvl); 9075 if (rval) 9076 goto err_dcf_dbg_lvl; 9077 rval = driver_create_file(&megasas_pci_driver.driver, 9078 &driver_attr_support_device_change); 9079 if (rval) 9080 goto err_dcf_support_device_change; 9081 9082 rval = driver_create_file(&megasas_pci_driver.driver, 9083 &driver_attr_support_nvme_encapsulation); 9084 if (rval) 9085 goto err_dcf_support_nvme_encapsulation; 9086 9087 rval = driver_create_file(&megasas_pci_driver.driver, 9088 &driver_attr_support_pci_lane_margining); 9089 if (rval) 9090 goto err_dcf_support_pci_lane_margining; 9091 9092 return rval; 9093 9094err_dcf_support_pci_lane_margining: 9095 driver_remove_file(&megasas_pci_driver.driver, 9096 &driver_attr_support_nvme_encapsulation); 9097 9098err_dcf_support_nvme_encapsulation: 9099 driver_remove_file(&megasas_pci_driver.driver, 9100 &driver_attr_support_device_change); 9101 9102err_dcf_support_device_change: 9103 driver_remove_file(&megasas_pci_driver.driver, 9104 &driver_attr_dbg_lvl); 9105err_dcf_dbg_lvl: 9106 driver_remove_file(&megasas_pci_driver.driver, 9107 &driver_attr_support_poll_for_event); 9108err_dcf_support_poll_for_event: 9109 driver_remove_file(&megasas_pci_driver.driver, 9110 &driver_attr_release_date); 9111err_dcf_rel_date: 9112 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 9113err_dcf_attr_ver: 9114 pci_unregister_driver(&megasas_pci_driver); 9115err_pcidrv: 9116 megasas_exit_debugfs(); 9117 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 9118 return rval; 9119} 9120 9121/** 9122 * megasas_exit - Driver unload entry point 9123 */ 9124static void __exit megasas_exit(void) 9125{ 9126 driver_remove_file(&megasas_pci_driver.driver, 9127 &driver_attr_dbg_lvl); 9128 driver_remove_file(&megasas_pci_driver.driver, 9129 &driver_attr_support_poll_for_event); 9130 driver_remove_file(&megasas_pci_driver.driver, 9131 &driver_attr_support_device_change); 9132 driver_remove_file(&megasas_pci_driver.driver, 9133 &driver_attr_release_date); 9134 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 9135 driver_remove_file(&megasas_pci_driver.driver, 9136 &driver_attr_support_nvme_encapsulation); 9137 driver_remove_file(&megasas_pci_driver.driver, 9138 &driver_attr_support_pci_lane_margining); 9139 9140 pci_unregister_driver(&megasas_pci_driver); 9141 megasas_exit_debugfs(); 9142 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 9143} 9144 9145module_init(megasas_init); 9146module_exit(megasas_exit);
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