1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Linux MegaRAID driver for SAS based RAID controllers 4 * 5 * Copyright (c) 2003-2013 LSI Corporation 6 * Copyright (c) 2013-2016 Avago Technologies 7 * Copyright (c) 2016-2018 Broadcom Inc. 8 * 9 * Authors: Broadcom Inc. 10 * Sreenivas Bagalkote 11 * Sumant Patro 12 * Bo Yang 13 * Adam Radford 14 * Kashyap Desai <kashyap.desai@broadcom.com> 15 * Sumit Saxena <sumit.saxena@broadcom.com> 16 * 17 * Send feedback to: megaraidlinux.pdl@broadcom.com 18 */ 19 20 #include <linux/kernel.h> 21 #include <linux/types.h> 22 #include <linux/pci.h> 23 #include <linux/list.h> 24 #include <linux/moduleparam.h> 25 #include <linux/module.h> 26 #include <linux/spinlock.h> 27 #include <linux/interrupt.h> 28 #include <linux/delay.h> 29 #include <linux/uio.h> 30 #include <linux/slab.h> 31 #include <linux/uaccess.h> 32 #include <asm/unaligned.h> 33 #include <linux/fs.h> 34 #include <linux/compat.h> 35 #include <linux/blkdev.h> 36 #include <linux/mutex.h> 37 #include <linux/poll.h> 38 #include <linux/vmalloc.h> 39 #include <linux/irq_poll.h> 40 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 */ 54 static unsigned int max_sectors; 55 module_param_named(max_sectors, max_sectors, int, 0444); 56 MODULE_PARM_DESC(max_sectors, 57 "Maximum number of sectors per IO command"); 58 59 static int msix_disable; 60 module_param(msix_disable, int, 0444); 61 MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); 62 63 static unsigned int msix_vectors; 64 module_param(msix_vectors, int, 0444); 65 MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); 66 67 static int allow_vf_ioctls; 68 module_param(allow_vf_ioctls, int, 0444); 69 MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); 70 71 static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; 72 module_param(throttlequeuedepth, int, 0444); 73 MODULE_PARM_DESC(throttlequeuedepth, 74 "Adapter queue depth when throttled due to I/O timeout. Default: 16"); 75 76 unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; 77 module_param(resetwaittime, int, 0444); 78 MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s"); 79 80 int smp_affinity_enable = 1; 81 module_param(smp_affinity_enable, int, 0444); 82 MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)"); 83 84 int rdpq_enable = 1; 85 module_param(rdpq_enable, int, 0444); 86 MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)"); 87 88 unsigned int dual_qdepth_disable; 89 module_param(dual_qdepth_disable, int, 0444); 90 MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); 91 92 unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 93 module_param(scmd_timeout, int, 0444); 94 MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); 95 96 int perf_mode = -1; 97 module_param(perf_mode, int, 0444); 98 MODULE_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 ); 107 108 int event_log_level = MFI_EVT_CLASS_CRITICAL; 109 module_param(event_log_level, int, 0644); 110 MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)"); 111 112 unsigned int enable_sdev_max_qd; 113 module_param(enable_sdev_max_qd, int, 0444); 114 MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0"); 115 116 MODULE_LICENSE("GPL"); 117 MODULE_VERSION(MEGASAS_VERSION); 118 MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com"); 119 MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver"); 120 121 int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); 122 static int megasas_get_pd_list(struct megasas_instance *instance); 123 static int megasas_ld_list_query(struct megasas_instance *instance, 124 u8 query_type); 125 static int megasas_issue_init_mfi(struct megasas_instance *instance); 126 static int megasas_register_aen(struct megasas_instance *instance, 127 u32 seq_num, u32 class_locale_word); 128 static void megasas_get_pd_info(struct megasas_instance *instance, 129 struct scsi_device *sdev); 130 131 /* 132 * PCI ID table for all supported controllers 133 */ 134 static struct pci_device_id megasas_pci_table[] = { 135 136 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, 137 /* xscale IOP */ 138 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, 139 /* ppc IOP */ 140 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, 141 /* ppc IOP */ 142 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, 143 /* gen2*/ 144 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, 145 /* gen2*/ 146 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, 147 /* skinny*/ 148 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, 149 /* skinny*/ 150 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, 151 /* xscale IOP, vega */ 152 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, 153 /* xscale IOP */ 154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, 155 /* Fusion */ 156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, 157 /* Plasma */ 158 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, 159 /* Invader */ 160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, 161 /* Fury */ 162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, 163 /* Intruder */ 164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, 165 /* Intruder 24 port*/ 166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, 167 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, 168 /* VENTURA */ 169 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)}, 170 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)}, 171 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)}, 172 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)}, 173 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)}, 174 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)}, 175 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)}, 176 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)}, 177 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)}, 178 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)}, 179 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)}, 180 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)}, 181 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)}, 182 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)}, 183 {} 184 }; 185 186 MODULE_DEVICE_TABLE(pci, megasas_pci_table); 187 188 static int megasas_mgmt_majorno; 189 struct megasas_mgmt_info megasas_mgmt_info; 190 static struct fasync_struct *megasas_async_queue; 191 static DEFINE_MUTEX(megasas_async_queue_mutex); 192 193 static int megasas_poll_wait_aen; 194 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); 195 static u32 support_poll_for_event; 196 u32 megasas_dbg_lvl; 197 static u32 support_device_change; 198 static bool support_nvme_encapsulation; 199 static bool support_pci_lane_margining; 200 201 /* define lock for aen poll */ 202 spinlock_t poll_aen_lock; 203 204 extern struct dentry *megasas_debugfs_root; 205 extern void megasas_init_debugfs(void); 206 extern void megasas_exit_debugfs(void); 207 extern void megasas_setup_debugfs(struct megasas_instance *instance); 208 extern void megasas_destroy_debugfs(struct megasas_instance *instance); 209 210 void 211 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 212 u8 alt_status); 213 static u32 214 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance); 215 static int 216 megasas_adp_reset_gen2(struct megasas_instance *instance, 217 struct megasas_register_set __iomem *reg_set); 218 static irqreturn_t megasas_isr(int irq, void *devp); 219 static u32 220 megasas_init_adapter_mfi(struct megasas_instance *instance); 221 u32 222 megasas_build_and_issue_cmd(struct megasas_instance *instance, 223 struct scsi_cmnd *scmd); 224 static void megasas_complete_cmd_dpc(unsigned long instance_addr); 225 int 226 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, 227 int seconds); 228 void megasas_fusion_ocr_wq(struct work_struct *work); 229 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 230 int initial); 231 static int 232 megasas_set_dma_mask(struct megasas_instance *instance); 233 static int 234 megasas_alloc_ctrl_mem(struct megasas_instance *instance); 235 static inline void 236 megasas_free_ctrl_mem(struct megasas_instance *instance); 237 static inline int 238 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance); 239 static inline void 240 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance); 241 static inline void 242 megasas_init_ctrl_params(struct megasas_instance *instance); 243 244 u32 megasas_readl(struct megasas_instance *instance, 245 const volatile void __iomem *addr) 246 { 247 u32 i = 0, ret_val; 248 /* 249 * Due to a HW errata in Aero controllers, reads to certain 250 * Fusion registers could intermittently return all zeroes. 251 * This behavior is transient in nature and subsequent reads will 252 * return valid value. As a workaround in driver, retry readl for 253 * upto three times until a non-zero value is read. 254 */ 255 if (instance->adapter_type == AERO_SERIES) { 256 do { 257 ret_val = readl(addr); 258 i++; 259 } while (ret_val == 0 && i < 3); 260 return ret_val; 261 } else { 262 return readl(addr); 263 } 264 } 265 266 /** 267 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs 268 * @instance: Adapter soft state 269 * @dcmd: DCMD frame inside MFI command 270 * @dma_addr: DMA address of buffer to be passed to FW 271 * @dma_len: Length of DMA buffer to be passed to FW 272 * @return: void 273 */ 274 void megasas_set_dma_settings(struct megasas_instance *instance, 275 struct megasas_dcmd_frame *dcmd, 276 dma_addr_t dma_addr, u32 dma_len) 277 { 278 if (instance->consistent_mask_64bit) { 279 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr); 280 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len); 281 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64); 282 283 } else { 284 dcmd->sgl.sge32[0].phys_addr = 285 cpu_to_le32(lower_32_bits(dma_addr)); 286 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len); 287 dcmd->flags = cpu_to_le16(dcmd->flags); 288 } 289 } 290 291 static void 292 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 293 { 294 instance->instancet->fire_cmd(instance, 295 cmd->frame_phys_addr, 0, instance->reg_set); 296 return; 297 } 298 299 /** 300 * megasas_get_cmd - Get a command from the free pool 301 * @instance: Adapter soft state 302 * 303 * Returns a free command from the pool 304 */ 305 struct megasas_cmd *megasas_get_cmd(struct megasas_instance 306 *instance) 307 { 308 unsigned long flags; 309 struct megasas_cmd *cmd = NULL; 310 311 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 312 313 if (!list_empty(&instance->cmd_pool)) { 314 cmd = list_entry((&instance->cmd_pool)->next, 315 struct megasas_cmd, list); 316 list_del_init(&cmd->list); 317 } else { 318 dev_err(&instance->pdev->dev, "Command pool empty!\n"); 319 } 320 321 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 322 return cmd; 323 } 324 325 /** 326 * megasas_return_cmd - Return a cmd to free command pool 327 * @instance: Adapter soft state 328 * @cmd: Command packet to be returned to free command pool 329 */ 330 void 331 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 332 { 333 unsigned long flags; 334 u32 blk_tags; 335 struct megasas_cmd_fusion *cmd_fusion; 336 struct fusion_context *fusion = instance->ctrl_context; 337 338 /* This flag is used only for fusion adapter. 339 * Wait for Interrupt for Polled mode DCMD 340 */ 341 if (cmd->flags & DRV_DCMD_POLLED_MODE) 342 return; 343 344 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 345 346 if (fusion) { 347 blk_tags = instance->max_scsi_cmds + cmd->index; 348 cmd_fusion = fusion->cmd_list[blk_tags]; 349 megasas_return_cmd_fusion(instance, cmd_fusion); 350 } 351 cmd->scmd = NULL; 352 cmd->frame_count = 0; 353 cmd->flags = 0; 354 memset(cmd->frame, 0, instance->mfi_frame_size); 355 cmd->frame->io.context = cpu_to_le32(cmd->index); 356 if (!fusion && reset_devices) 357 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 358 list_add(&cmd->list, (&instance->cmd_pool)->next); 359 360 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 361 362 } 363 364 static const char * 365 format_timestamp(uint32_t timestamp) 366 { 367 static char buffer[32]; 368 369 if ((timestamp & 0xff000000) == 0xff000000) 370 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 371 0x00ffffff); 372 else 373 snprintf(buffer, sizeof(buffer), "%us", timestamp); 374 return buffer; 375 } 376 377 static const char * 378 format_class(int8_t class) 379 { 380 static char buffer[6]; 381 382 switch (class) { 383 case MFI_EVT_CLASS_DEBUG: 384 return "debug"; 385 case MFI_EVT_CLASS_PROGRESS: 386 return "progress"; 387 case MFI_EVT_CLASS_INFO: 388 return "info"; 389 case MFI_EVT_CLASS_WARNING: 390 return "WARN"; 391 case MFI_EVT_CLASS_CRITICAL: 392 return "CRIT"; 393 case MFI_EVT_CLASS_FATAL: 394 return "FATAL"; 395 case MFI_EVT_CLASS_DEAD: 396 return "DEAD"; 397 default: 398 snprintf(buffer, sizeof(buffer), "%d", class); 399 return buffer; 400 } 401 } 402 403 /** 404 * megasas_decode_evt: Decode FW AEN event and print critical event 405 * for information. 406 * @instance: Adapter soft state 407 */ 408 static void 409 megasas_decode_evt(struct megasas_instance *instance) 410 { 411 struct megasas_evt_detail *evt_detail = instance->evt_detail; 412 union megasas_evt_class_locale class_locale; 413 class_locale.word = le32_to_cpu(evt_detail->cl.word); 414 415 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 416 (event_log_level > MFI_EVT_CLASS_DEAD)) { 417 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"); 418 event_log_level = MFI_EVT_CLASS_CRITICAL; 419 } 420 421 if (class_locale.members.class >= event_log_level) 422 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", 423 le32_to_cpu(evt_detail->seq_num), 424 format_timestamp(le32_to_cpu(evt_detail->time_stamp)), 425 (class_locale.members.locale), 426 format_class(class_locale.members.class), 427 evt_detail->description); 428 } 429 430 /** 431 * The following functions are defined for xscale 432 * (deviceid : 1064R, PERC5) controllers 433 */ 434 435 /** 436 * megasas_enable_intr_xscale - Enables interrupts 437 * @regs: MFI register set 438 */ 439 static inline void 440 megasas_enable_intr_xscale(struct megasas_instance *instance) 441 { 442 struct megasas_register_set __iomem *regs; 443 444 regs = instance->reg_set; 445 writel(0, &(regs)->outbound_intr_mask); 446 447 /* Dummy readl to force pci flush */ 448 readl(®s->outbound_intr_mask); 449 } 450 451 /** 452 * megasas_disable_intr_xscale -Disables interrupt 453 * @regs: MFI register set 454 */ 455 static inline void 456 megasas_disable_intr_xscale(struct megasas_instance *instance) 457 { 458 struct megasas_register_set __iomem *regs; 459 u32 mask = 0x1f; 460 461 regs = instance->reg_set; 462 writel(mask, ®s->outbound_intr_mask); 463 /* Dummy readl to force pci flush */ 464 readl(®s->outbound_intr_mask); 465 } 466 467 /** 468 * megasas_read_fw_status_reg_xscale - returns the current FW status value 469 * @regs: MFI register set 470 */ 471 static u32 472 megasas_read_fw_status_reg_xscale(struct megasas_instance *instance) 473 { 474 return readl(&instance->reg_set->outbound_msg_0); 475 } 476 /** 477 * megasas_clear_interrupt_xscale - Check & clear interrupt 478 * @regs: MFI register set 479 */ 480 static int 481 megasas_clear_intr_xscale(struct megasas_instance *instance) 482 { 483 u32 status; 484 u32 mfiStatus = 0; 485 struct megasas_register_set __iomem *regs; 486 regs = instance->reg_set; 487 488 /* 489 * Check if it is our interrupt 490 */ 491 status = readl(®s->outbound_intr_status); 492 493 if (status & MFI_OB_INTR_STATUS_MASK) 494 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 495 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) 496 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 497 498 /* 499 * Clear the interrupt by writing back the same value 500 */ 501 if (mfiStatus) 502 writel(status, ®s->outbound_intr_status); 503 504 /* Dummy readl to force pci flush */ 505 readl(®s->outbound_intr_status); 506 507 return mfiStatus; 508 } 509 510 /** 511 * megasas_fire_cmd_xscale - Sends command to the FW 512 * @frame_phys_addr : Physical address of cmd 513 * @frame_count : Number of frames for the command 514 * @regs : MFI register set 515 */ 516 static inline void 517 megasas_fire_cmd_xscale(struct megasas_instance *instance, 518 dma_addr_t frame_phys_addr, 519 u32 frame_count, 520 struct megasas_register_set __iomem *regs) 521 { 522 unsigned long flags; 523 524 spin_lock_irqsave(&instance->hba_lock, flags); 525 writel((frame_phys_addr >> 3)|(frame_count), 526 &(regs)->inbound_queue_port); 527 spin_unlock_irqrestore(&instance->hba_lock, flags); 528 } 529 530 /** 531 * megasas_adp_reset_xscale - For controller reset 532 * @regs: MFI register set 533 */ 534 static int 535 megasas_adp_reset_xscale(struct megasas_instance *instance, 536 struct megasas_register_set __iomem *regs) 537 { 538 u32 i; 539 u32 pcidata; 540 541 writel(MFI_ADP_RESET, ®s->inbound_doorbell); 542 543 for (i = 0; i < 3; i++) 544 msleep(1000); /* sleep for 3 secs */ 545 pcidata = 0; 546 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); 547 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); 548 if (pcidata & 0x2) { 549 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); 550 pcidata &= ~0x2; 551 pci_write_config_dword(instance->pdev, 552 MFI_1068_PCSR_OFFSET, pcidata); 553 554 for (i = 0; i < 2; i++) 555 msleep(1000); /* need to wait 2 secs again */ 556 557 pcidata = 0; 558 pci_read_config_dword(instance->pdev, 559 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); 560 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); 561 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { 562 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); 563 pcidata = 0; 564 pci_write_config_dword(instance->pdev, 565 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); 566 } 567 } 568 return 0; 569 } 570 571 /** 572 * megasas_check_reset_xscale - For controller reset check 573 * @regs: MFI register set 574 */ 575 static int 576 megasas_check_reset_xscale(struct megasas_instance *instance, 577 struct megasas_register_set __iomem *regs) 578 { 579 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && 580 (le32_to_cpu(*instance->consumer) == 581 MEGASAS_ADPRESET_INPROG_SIGN)) 582 return 1; 583 return 0; 584 } 585 586 static struct megasas_instance_template megasas_instance_template_xscale = { 587 588 .fire_cmd = megasas_fire_cmd_xscale, 589 .enable_intr = megasas_enable_intr_xscale, 590 .disable_intr = megasas_disable_intr_xscale, 591 .clear_intr = megasas_clear_intr_xscale, 592 .read_fw_status_reg = megasas_read_fw_status_reg_xscale, 593 .adp_reset = megasas_adp_reset_xscale, 594 .check_reset = megasas_check_reset_xscale, 595 .service_isr = megasas_isr, 596 .tasklet = megasas_complete_cmd_dpc, 597 .init_adapter = megasas_init_adapter_mfi, 598 .build_and_issue_cmd = megasas_build_and_issue_cmd, 599 .issue_dcmd = megasas_issue_dcmd, 600 }; 601 602 /** 603 * This is the end of set of functions & definitions specific 604 * to xscale (deviceid : 1064R, PERC5) controllers 605 */ 606 607 /** 608 * The following functions are defined for ppc (deviceid : 0x60) 609 * controllers 610 */ 611 612 /** 613 * megasas_enable_intr_ppc - Enables interrupts 614 * @regs: MFI register set 615 */ 616 static inline void 617 megasas_enable_intr_ppc(struct megasas_instance *instance) 618 { 619 struct megasas_register_set __iomem *regs; 620 621 regs = instance->reg_set; 622 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 623 624 writel(~0x80000000, &(regs)->outbound_intr_mask); 625 626 /* Dummy readl to force pci flush */ 627 readl(®s->outbound_intr_mask); 628 } 629 630 /** 631 * megasas_disable_intr_ppc - Disable interrupt 632 * @regs: MFI register set 633 */ 634 static inline void 635 megasas_disable_intr_ppc(struct megasas_instance *instance) 636 { 637 struct megasas_register_set __iomem *regs; 638 u32 mask = 0xFFFFFFFF; 639 640 regs = instance->reg_set; 641 writel(mask, ®s->outbound_intr_mask); 642 /* Dummy readl to force pci flush */ 643 readl(®s->outbound_intr_mask); 644 } 645 646 /** 647 * megasas_read_fw_status_reg_ppc - returns the current FW status value 648 * @regs: MFI register set 649 */ 650 static u32 651 megasas_read_fw_status_reg_ppc(struct megasas_instance *instance) 652 { 653 return readl(&instance->reg_set->outbound_scratch_pad_0); 654 } 655 656 /** 657 * megasas_clear_interrupt_ppc - Check & clear interrupt 658 * @regs: MFI register set 659 */ 660 static int 661 megasas_clear_intr_ppc(struct megasas_instance *instance) 662 { 663 u32 status, mfiStatus = 0; 664 struct megasas_register_set __iomem *regs; 665 regs = instance->reg_set; 666 667 /* 668 * Check if it is our interrupt 669 */ 670 status = readl(®s->outbound_intr_status); 671 672 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) 673 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 674 675 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) 676 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 677 678 /* 679 * Clear the interrupt by writing back the same value 680 */ 681 writel(status, ®s->outbound_doorbell_clear); 682 683 /* Dummy readl to force pci flush */ 684 readl(®s->outbound_doorbell_clear); 685 686 return mfiStatus; 687 } 688 689 /** 690 * megasas_fire_cmd_ppc - Sends command to the FW 691 * @frame_phys_addr : Physical address of cmd 692 * @frame_count : Number of frames for the command 693 * @regs : MFI register set 694 */ 695 static inline void 696 megasas_fire_cmd_ppc(struct megasas_instance *instance, 697 dma_addr_t frame_phys_addr, 698 u32 frame_count, 699 struct megasas_register_set __iomem *regs) 700 { 701 unsigned long flags; 702 703 spin_lock_irqsave(&instance->hba_lock, flags); 704 writel((frame_phys_addr | (frame_count<<1))|1, 705 &(regs)->inbound_queue_port); 706 spin_unlock_irqrestore(&instance->hba_lock, flags); 707 } 708 709 /** 710 * megasas_check_reset_ppc - For controller reset check 711 * @regs: MFI register set 712 */ 713 static int 714 megasas_check_reset_ppc(struct megasas_instance *instance, 715 struct megasas_register_set __iomem *regs) 716 { 717 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 718 return 1; 719 720 return 0; 721 } 722 723 static struct megasas_instance_template megasas_instance_template_ppc = { 724 725 .fire_cmd = megasas_fire_cmd_ppc, 726 .enable_intr = megasas_enable_intr_ppc, 727 .disable_intr = megasas_disable_intr_ppc, 728 .clear_intr = megasas_clear_intr_ppc, 729 .read_fw_status_reg = megasas_read_fw_status_reg_ppc, 730 .adp_reset = megasas_adp_reset_xscale, 731 .check_reset = megasas_check_reset_ppc, 732 .service_isr = megasas_isr, 733 .tasklet = megasas_complete_cmd_dpc, 734 .init_adapter = megasas_init_adapter_mfi, 735 .build_and_issue_cmd = megasas_build_and_issue_cmd, 736 .issue_dcmd = megasas_issue_dcmd, 737 }; 738 739 /** 740 * megasas_enable_intr_skinny - Enables interrupts 741 * @regs: MFI register set 742 */ 743 static inline void 744 megasas_enable_intr_skinny(struct megasas_instance *instance) 745 { 746 struct megasas_register_set __iomem *regs; 747 748 regs = instance->reg_set; 749 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); 750 751 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 752 753 /* Dummy readl to force pci flush */ 754 readl(®s->outbound_intr_mask); 755 } 756 757 /** 758 * megasas_disable_intr_skinny - Disables interrupt 759 * @regs: MFI register set 760 */ 761 static inline void 762 megasas_disable_intr_skinny(struct megasas_instance *instance) 763 { 764 struct megasas_register_set __iomem *regs; 765 u32 mask = 0xFFFFFFFF; 766 767 regs = instance->reg_set; 768 writel(mask, ®s->outbound_intr_mask); 769 /* Dummy readl to force pci flush */ 770 readl(®s->outbound_intr_mask); 771 } 772 773 /** 774 * megasas_read_fw_status_reg_skinny - returns the current FW status value 775 * @regs: MFI register set 776 */ 777 static u32 778 megasas_read_fw_status_reg_skinny(struct megasas_instance *instance) 779 { 780 return readl(&instance->reg_set->outbound_scratch_pad_0); 781 } 782 783 /** 784 * megasas_clear_interrupt_skinny - Check & clear interrupt 785 * @regs: MFI register set 786 */ 787 static int 788 megasas_clear_intr_skinny(struct megasas_instance *instance) 789 { 790 u32 status; 791 u32 mfiStatus = 0; 792 struct megasas_register_set __iomem *regs; 793 regs = instance->reg_set; 794 795 /* 796 * Check if it is our interrupt 797 */ 798 status = readl(®s->outbound_intr_status); 799 800 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { 801 return 0; 802 } 803 804 /* 805 * Check if it is our interrupt 806 */ 807 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) == 808 MFI_STATE_FAULT) { 809 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 810 } else 811 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 812 813 /* 814 * Clear the interrupt by writing back the same value 815 */ 816 writel(status, ®s->outbound_intr_status); 817 818 /* 819 * dummy read to flush PCI 820 */ 821 readl(®s->outbound_intr_status); 822 823 return mfiStatus; 824 } 825 826 /** 827 * megasas_fire_cmd_skinny - Sends command to the FW 828 * @frame_phys_addr : Physical address of cmd 829 * @frame_count : Number of frames for the command 830 * @regs : MFI register set 831 */ 832 static inline void 833 megasas_fire_cmd_skinny(struct megasas_instance *instance, 834 dma_addr_t frame_phys_addr, 835 u32 frame_count, 836 struct megasas_register_set __iomem *regs) 837 { 838 unsigned long flags; 839 840 spin_lock_irqsave(&instance->hba_lock, flags); 841 writel(upper_32_bits(frame_phys_addr), 842 &(regs)->inbound_high_queue_port); 843 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, 844 &(regs)->inbound_low_queue_port); 845 spin_unlock_irqrestore(&instance->hba_lock, flags); 846 } 847 848 /** 849 * megasas_check_reset_skinny - For controller reset check 850 * @regs: MFI register set 851 */ 852 static int 853 megasas_check_reset_skinny(struct megasas_instance *instance, 854 struct megasas_register_set __iomem *regs) 855 { 856 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 857 return 1; 858 859 return 0; 860 } 861 862 static struct megasas_instance_template megasas_instance_template_skinny = { 863 864 .fire_cmd = megasas_fire_cmd_skinny, 865 .enable_intr = megasas_enable_intr_skinny, 866 .disable_intr = megasas_disable_intr_skinny, 867 .clear_intr = megasas_clear_intr_skinny, 868 .read_fw_status_reg = megasas_read_fw_status_reg_skinny, 869 .adp_reset = megasas_adp_reset_gen2, 870 .check_reset = megasas_check_reset_skinny, 871 .service_isr = megasas_isr, 872 .tasklet = megasas_complete_cmd_dpc, 873 .init_adapter = megasas_init_adapter_mfi, 874 .build_and_issue_cmd = megasas_build_and_issue_cmd, 875 .issue_dcmd = megasas_issue_dcmd, 876 }; 877 878 879 /** 880 * The following functions are defined for gen2 (deviceid : 0x78 0x79) 881 * controllers 882 */ 883 884 /** 885 * megasas_enable_intr_gen2 - Enables interrupts 886 * @regs: MFI register set 887 */ 888 static inline void 889 megasas_enable_intr_gen2(struct megasas_instance *instance) 890 { 891 struct megasas_register_set __iomem *regs; 892 893 regs = instance->reg_set; 894 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 895 896 /* write ~0x00000005 (4 & 1) to the intr mask*/ 897 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 898 899 /* Dummy readl to force pci flush */ 900 readl(®s->outbound_intr_mask); 901 } 902 903 /** 904 * megasas_disable_intr_gen2 - Disables interrupt 905 * @regs: MFI register set 906 */ 907 static inline void 908 megasas_disable_intr_gen2(struct megasas_instance *instance) 909 { 910 struct megasas_register_set __iomem *regs; 911 u32 mask = 0xFFFFFFFF; 912 913 regs = instance->reg_set; 914 writel(mask, ®s->outbound_intr_mask); 915 /* Dummy readl to force pci flush */ 916 readl(®s->outbound_intr_mask); 917 } 918 919 /** 920 * megasas_read_fw_status_reg_gen2 - returns the current FW status value 921 * @regs: MFI register set 922 */ 923 static u32 924 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance) 925 { 926 return readl(&instance->reg_set->outbound_scratch_pad_0); 927 } 928 929 /** 930 * megasas_clear_interrupt_gen2 - Check & clear interrupt 931 * @regs: MFI register set 932 */ 933 static int 934 megasas_clear_intr_gen2(struct megasas_instance *instance) 935 { 936 u32 status; 937 u32 mfiStatus = 0; 938 struct megasas_register_set __iomem *regs; 939 regs = instance->reg_set; 940 941 /* 942 * Check if it is our interrupt 943 */ 944 status = readl(®s->outbound_intr_status); 945 946 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { 947 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 948 } 949 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { 950 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 951 } 952 953 /* 954 * Clear the interrupt by writing back the same value 955 */ 956 if (mfiStatus) 957 writel(status, ®s->outbound_doorbell_clear); 958 959 /* Dummy readl to force pci flush */ 960 readl(®s->outbound_intr_status); 961 962 return mfiStatus; 963 } 964 /** 965 * megasas_fire_cmd_gen2 - Sends command to the FW 966 * @frame_phys_addr : Physical address of cmd 967 * @frame_count : Number of frames for the command 968 * @regs : MFI register set 969 */ 970 static inline void 971 megasas_fire_cmd_gen2(struct megasas_instance *instance, 972 dma_addr_t frame_phys_addr, 973 u32 frame_count, 974 struct megasas_register_set __iomem *regs) 975 { 976 unsigned long flags; 977 978 spin_lock_irqsave(&instance->hba_lock, flags); 979 writel((frame_phys_addr | (frame_count<<1))|1, 980 &(regs)->inbound_queue_port); 981 spin_unlock_irqrestore(&instance->hba_lock, flags); 982 } 983 984 /** 985 * megasas_adp_reset_gen2 - For controller reset 986 * @regs: MFI register set 987 */ 988 static int 989 megasas_adp_reset_gen2(struct megasas_instance *instance, 990 struct megasas_register_set __iomem *reg_set) 991 { 992 u32 retry = 0 ; 993 u32 HostDiag; 994 u32 __iomem *seq_offset = ®_set->seq_offset; 995 u32 __iomem *hostdiag_offset = ®_set->host_diag; 996 997 if (instance->instancet == &megasas_instance_template_skinny) { 998 seq_offset = ®_set->fusion_seq_offset; 999 hostdiag_offset = ®_set->fusion_host_diag; 1000 } 1001 1002 writel(0, seq_offset); 1003 writel(4, seq_offset); 1004 writel(0xb, seq_offset); 1005 writel(2, seq_offset); 1006 writel(7, seq_offset); 1007 writel(0xd, seq_offset); 1008 1009 msleep(1000); 1010 1011 HostDiag = (u32)readl(hostdiag_offset); 1012 1013 while (!(HostDiag & DIAG_WRITE_ENABLE)) { 1014 msleep(100); 1015 HostDiag = (u32)readl(hostdiag_offset); 1016 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", 1017 retry, HostDiag); 1018 1019 if (retry++ >= 100) 1020 return 1; 1021 1022 } 1023 1024 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); 1025 1026 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); 1027 1028 ssleep(10); 1029 1030 HostDiag = (u32)readl(hostdiag_offset); 1031 while (HostDiag & DIAG_RESET_ADAPTER) { 1032 msleep(100); 1033 HostDiag = (u32)readl(hostdiag_offset); 1034 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", 1035 retry, HostDiag); 1036 1037 if (retry++ >= 1000) 1038 return 1; 1039 1040 } 1041 return 0; 1042 } 1043 1044 /** 1045 * megasas_check_reset_gen2 - For controller reset check 1046 * @regs: MFI register set 1047 */ 1048 static int 1049 megasas_check_reset_gen2(struct megasas_instance *instance, 1050 struct megasas_register_set __iomem *regs) 1051 { 1052 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1053 return 1; 1054 1055 return 0; 1056 } 1057 1058 static struct megasas_instance_template megasas_instance_template_gen2 = { 1059 1060 .fire_cmd = megasas_fire_cmd_gen2, 1061 .enable_intr = megasas_enable_intr_gen2, 1062 .disable_intr = megasas_disable_intr_gen2, 1063 .clear_intr = megasas_clear_intr_gen2, 1064 .read_fw_status_reg = megasas_read_fw_status_reg_gen2, 1065 .adp_reset = megasas_adp_reset_gen2, 1066 .check_reset = megasas_check_reset_gen2, 1067 .service_isr = megasas_isr, 1068 .tasklet = megasas_complete_cmd_dpc, 1069 .init_adapter = megasas_init_adapter_mfi, 1070 .build_and_issue_cmd = megasas_build_and_issue_cmd, 1071 .issue_dcmd = megasas_issue_dcmd, 1072 }; 1073 1074 /** 1075 * This is the end of set of functions & definitions 1076 * specific to gen2 (deviceid : 0x78, 0x79) controllers 1077 */ 1078 1079 /* 1080 * Template added for TB (Fusion) 1081 */ 1082 extern struct megasas_instance_template megasas_instance_template_fusion; 1083 1084 /** 1085 * megasas_issue_polled - Issues a polling command 1086 * @instance: Adapter soft state 1087 * @cmd: Command packet to be issued 1088 * 1089 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. 1090 */ 1091 int 1092 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) 1093 { 1094 struct megasas_header *frame_hdr = &cmd->frame->hdr; 1095 1096 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; 1097 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); 1098 1099 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1100 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1101 __func__, __LINE__); 1102 return DCMD_NOT_FIRED; 1103 } 1104 1105 instance->instancet->issue_dcmd(instance, cmd); 1106 1107 return wait_and_poll(instance, cmd, instance->requestorId ? 1108 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); 1109 } 1110 1111 /** 1112 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds 1113 * @instance: Adapter soft state 1114 * @cmd: Command to be issued 1115 * @timeout: Timeout in seconds 1116 * 1117 * This function waits on an event for the command to be returned from ISR. 1118 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1119 * Used to issue ioctl commands. 1120 */ 1121 int 1122 megasas_issue_blocked_cmd(struct megasas_instance *instance, 1123 struct megasas_cmd *cmd, int timeout) 1124 { 1125 int ret = 0; 1126 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 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_NOT_FIRED; 1132 } 1133 1134 instance->instancet->issue_dcmd(instance, cmd); 1135 1136 if (timeout) { 1137 ret = wait_event_timeout(instance->int_cmd_wait_q, 1138 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); 1139 if (!ret) { 1140 dev_err(&instance->pdev->dev, 1141 "DCMD(opcode: 0x%x) is timed out, func:%s\n", 1142 cmd->frame->dcmd.opcode, __func__); 1143 return DCMD_TIMEOUT; 1144 } 1145 } else 1146 wait_event(instance->int_cmd_wait_q, 1147 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); 1148 1149 return (cmd->cmd_status_drv == MFI_STAT_OK) ? 1150 DCMD_SUCCESS : DCMD_FAILED; 1151 } 1152 1153 /** 1154 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd 1155 * @instance: Adapter soft state 1156 * @cmd_to_abort: Previously issued cmd to be aborted 1157 * @timeout: Timeout in seconds 1158 * 1159 * MFI firmware can abort previously issued AEN comamnd (automatic event 1160 * notification). The megasas_issue_blocked_abort_cmd() issues such abort 1161 * cmd and waits for return status. 1162 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1163 */ 1164 static int 1165 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, 1166 struct megasas_cmd *cmd_to_abort, int timeout) 1167 { 1168 struct megasas_cmd *cmd; 1169 struct megasas_abort_frame *abort_fr; 1170 int ret = 0; 1171 u32 opcode; 1172 1173 cmd = megasas_get_cmd(instance); 1174 1175 if (!cmd) 1176 return -1; 1177 1178 abort_fr = &cmd->frame->abort; 1179 1180 /* 1181 * Prepare and issue the abort frame 1182 */ 1183 abort_fr->cmd = MFI_CMD_ABORT; 1184 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; 1185 abort_fr->flags = cpu_to_le16(0); 1186 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); 1187 abort_fr->abort_mfi_phys_addr_lo = 1188 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); 1189 abort_fr->abort_mfi_phys_addr_hi = 1190 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); 1191 1192 cmd->sync_cmd = 1; 1193 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 1194 1195 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1196 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1197 __func__, __LINE__); 1198 return DCMD_NOT_FIRED; 1199 } 1200 1201 instance->instancet->issue_dcmd(instance, cmd); 1202 1203 if (timeout) { 1204 ret = wait_event_timeout(instance->abort_cmd_wait_q, 1205 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); 1206 if (!ret) { 1207 opcode = cmd_to_abort->frame->dcmd.opcode; 1208 dev_err(&instance->pdev->dev, 1209 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n", 1210 opcode, __func__); 1211 return DCMD_TIMEOUT; 1212 } 1213 } else 1214 wait_event(instance->abort_cmd_wait_q, 1215 cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); 1216 1217 cmd->sync_cmd = 0; 1218 1219 megasas_return_cmd(instance, cmd); 1220 return (cmd->cmd_status_drv == MFI_STAT_OK) ? 1221 DCMD_SUCCESS : DCMD_FAILED; 1222 } 1223 1224 /** 1225 * megasas_make_sgl32 - Prepares 32-bit SGL 1226 * @instance: Adapter soft state 1227 * @scp: SCSI command from the mid-layer 1228 * @mfi_sgl: SGL to be filled in 1229 * 1230 * If successful, this function returns the number of SG elements. Otherwise, 1231 * it returnes -1. 1232 */ 1233 static int 1234 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, 1235 union megasas_sgl *mfi_sgl) 1236 { 1237 int i; 1238 int sge_count; 1239 struct scatterlist *os_sgl; 1240 1241 sge_count = scsi_dma_map(scp); 1242 BUG_ON(sge_count < 0); 1243 1244 if (sge_count) { 1245 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1246 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1247 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); 1248 } 1249 } 1250 return sge_count; 1251 } 1252 1253 /** 1254 * megasas_make_sgl64 - Prepares 64-bit SGL 1255 * @instance: Adapter soft state 1256 * @scp: SCSI command from the mid-layer 1257 * @mfi_sgl: SGL to be filled in 1258 * 1259 * If successful, this function returns the number of SG elements. Otherwise, 1260 * it returnes -1. 1261 */ 1262 static int 1263 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, 1264 union megasas_sgl *mfi_sgl) 1265 { 1266 int i; 1267 int sge_count; 1268 struct scatterlist *os_sgl; 1269 1270 sge_count = scsi_dma_map(scp); 1271 BUG_ON(sge_count < 0); 1272 1273 if (sge_count) { 1274 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1275 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1276 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); 1277 } 1278 } 1279 return sge_count; 1280 } 1281 1282 /** 1283 * megasas_make_sgl_skinny - Prepares IEEE SGL 1284 * @instance: Adapter soft state 1285 * @scp: SCSI command from the mid-layer 1286 * @mfi_sgl: SGL to be filled in 1287 * 1288 * If successful, this function returns the number of SG elements. Otherwise, 1289 * it returnes -1. 1290 */ 1291 static int 1292 megasas_make_sgl_skinny(struct megasas_instance *instance, 1293 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) 1294 { 1295 int i; 1296 int sge_count; 1297 struct scatterlist *os_sgl; 1298 1299 sge_count = scsi_dma_map(scp); 1300 1301 if (sge_count) { 1302 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1303 mfi_sgl->sge_skinny[i].length = 1304 cpu_to_le32(sg_dma_len(os_sgl)); 1305 mfi_sgl->sge_skinny[i].phys_addr = 1306 cpu_to_le64(sg_dma_address(os_sgl)); 1307 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); 1308 } 1309 } 1310 return sge_count; 1311 } 1312 1313 /** 1314 * megasas_get_frame_count - Computes the number of frames 1315 * @frame_type : type of frame- io or pthru frame 1316 * @sge_count : number of sg elements 1317 * 1318 * Returns the number of frames required for numnber of sge's (sge_count) 1319 */ 1320 1321 static u32 megasas_get_frame_count(struct megasas_instance *instance, 1322 u8 sge_count, u8 frame_type) 1323 { 1324 int num_cnt; 1325 int sge_bytes; 1326 u32 sge_sz; 1327 u32 frame_count = 0; 1328 1329 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 1330 sizeof(struct megasas_sge32); 1331 1332 if (instance->flag_ieee) { 1333 sge_sz = sizeof(struct megasas_sge_skinny); 1334 } 1335 1336 /* 1337 * Main frame can contain 2 SGEs for 64-bit SGLs and 1338 * 3 SGEs for 32-bit SGLs for ldio & 1339 * 1 SGEs for 64-bit SGLs and 1340 * 2 SGEs for 32-bit SGLs for pthru frame 1341 */ 1342 if (unlikely(frame_type == PTHRU_FRAME)) { 1343 if (instance->flag_ieee == 1) { 1344 num_cnt = sge_count - 1; 1345 } else if (IS_DMA64) 1346 num_cnt = sge_count - 1; 1347 else 1348 num_cnt = sge_count - 2; 1349 } else { 1350 if (instance->flag_ieee == 1) { 1351 num_cnt = sge_count - 1; 1352 } else if (IS_DMA64) 1353 num_cnt = sge_count - 2; 1354 else 1355 num_cnt = sge_count - 3; 1356 } 1357 1358 if (num_cnt > 0) { 1359 sge_bytes = sge_sz * num_cnt; 1360 1361 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + 1362 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; 1363 } 1364 /* Main frame */ 1365 frame_count += 1; 1366 1367 if (frame_count > 7) 1368 frame_count = 8; 1369 return frame_count; 1370 } 1371 1372 /** 1373 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command 1374 * @instance: Adapter soft state 1375 * @scp: SCSI command 1376 * @cmd: Command to be prepared in 1377 * 1378 * This function prepares CDB commands. These are typcially pass-through 1379 * commands to the devices. 1380 */ 1381 static int 1382 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, 1383 struct megasas_cmd *cmd) 1384 { 1385 u32 is_logical; 1386 u32 device_id; 1387 u16 flags = 0; 1388 struct megasas_pthru_frame *pthru; 1389 1390 is_logical = MEGASAS_IS_LOGICAL(scp->device); 1391 device_id = MEGASAS_DEV_INDEX(scp); 1392 pthru = (struct megasas_pthru_frame *)cmd->frame; 1393 1394 if (scp->sc_data_direction == DMA_TO_DEVICE) 1395 flags = MFI_FRAME_DIR_WRITE; 1396 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1397 flags = MFI_FRAME_DIR_READ; 1398 else if (scp->sc_data_direction == DMA_NONE) 1399 flags = MFI_FRAME_DIR_NONE; 1400 1401 if (instance->flag_ieee == 1) { 1402 flags |= MFI_FRAME_IEEE; 1403 } 1404 1405 /* 1406 * Prepare the DCDB frame 1407 */ 1408 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; 1409 pthru->cmd_status = 0x0; 1410 pthru->scsi_status = 0x0; 1411 pthru->target_id = device_id; 1412 pthru->lun = scp->device->lun; 1413 pthru->cdb_len = scp->cmd_len; 1414 pthru->timeout = 0; 1415 pthru->pad_0 = 0; 1416 pthru->flags = cpu_to_le16(flags); 1417 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); 1418 1419 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); 1420 1421 /* 1422 * If the command is for the tape device, set the 1423 * pthru timeout to the os layer timeout value. 1424 */ 1425 if (scp->device->type == TYPE_TAPE) { 1426 if ((scp->request->timeout / HZ) > 0xFFFF) 1427 pthru->timeout = cpu_to_le16(0xFFFF); 1428 else 1429 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); 1430 } 1431 1432 /* 1433 * Construct SGL 1434 */ 1435 if (instance->flag_ieee == 1) { 1436 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1437 pthru->sge_count = megasas_make_sgl_skinny(instance, scp, 1438 &pthru->sgl); 1439 } else if (IS_DMA64) { 1440 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1441 pthru->sge_count = megasas_make_sgl64(instance, scp, 1442 &pthru->sgl); 1443 } else 1444 pthru->sge_count = megasas_make_sgl32(instance, scp, 1445 &pthru->sgl); 1446 1447 if (pthru->sge_count > instance->max_num_sge) { 1448 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", 1449 pthru->sge_count); 1450 return 0; 1451 } 1452 1453 /* 1454 * Sense info specific 1455 */ 1456 pthru->sense_len = SCSI_SENSE_BUFFERSIZE; 1457 pthru->sense_buf_phys_addr_hi = 1458 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); 1459 pthru->sense_buf_phys_addr_lo = 1460 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); 1461 1462 /* 1463 * Compute the total number of frames this command consumes. FW uses 1464 * this number to pull sufficient number of frames from host memory. 1465 */ 1466 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, 1467 PTHRU_FRAME); 1468 1469 return cmd->frame_count; 1470 } 1471 1472 /** 1473 * megasas_build_ldio - Prepares IOs to logical devices 1474 * @instance: Adapter soft state 1475 * @scp: SCSI command 1476 * @cmd: Command to be prepared 1477 * 1478 * Frames (and accompanying SGLs) for regular SCSI IOs use this function. 1479 */ 1480 static int 1481 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, 1482 struct megasas_cmd *cmd) 1483 { 1484 u32 device_id; 1485 u8 sc = scp->cmnd[0]; 1486 u16 flags = 0; 1487 struct megasas_io_frame *ldio; 1488 1489 device_id = MEGASAS_DEV_INDEX(scp); 1490 ldio = (struct megasas_io_frame *)cmd->frame; 1491 1492 if (scp->sc_data_direction == DMA_TO_DEVICE) 1493 flags = MFI_FRAME_DIR_WRITE; 1494 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1495 flags = MFI_FRAME_DIR_READ; 1496 1497 if (instance->flag_ieee == 1) { 1498 flags |= MFI_FRAME_IEEE; 1499 } 1500 1501 /* 1502 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds 1503 */ 1504 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; 1505 ldio->cmd_status = 0x0; 1506 ldio->scsi_status = 0x0; 1507 ldio->target_id = device_id; 1508 ldio->timeout = 0; 1509 ldio->reserved_0 = 0; 1510 ldio->pad_0 = 0; 1511 ldio->flags = cpu_to_le16(flags); 1512 ldio->start_lba_hi = 0; 1513 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; 1514 1515 /* 1516 * 6-byte READ(0x08) or WRITE(0x0A) cdb 1517 */ 1518 if (scp->cmd_len == 6) { 1519 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); 1520 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | 1521 ((u32) scp->cmnd[2] << 8) | 1522 (u32) scp->cmnd[3]); 1523 1524 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); 1525 } 1526 1527 /* 1528 * 10-byte READ(0x28) or WRITE(0x2A) cdb 1529 */ 1530 else if (scp->cmd_len == 10) { 1531 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | 1532 ((u32) scp->cmnd[7] << 8)); 1533 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1534 ((u32) scp->cmnd[3] << 16) | 1535 ((u32) scp->cmnd[4] << 8) | 1536 (u32) scp->cmnd[5]); 1537 } 1538 1539 /* 1540 * 12-byte READ(0xA8) or WRITE(0xAA) cdb 1541 */ 1542 else if (scp->cmd_len == 12) { 1543 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1544 ((u32) scp->cmnd[7] << 16) | 1545 ((u32) scp->cmnd[8] << 8) | 1546 (u32) scp->cmnd[9]); 1547 1548 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1549 ((u32) scp->cmnd[3] << 16) | 1550 ((u32) scp->cmnd[4] << 8) | 1551 (u32) scp->cmnd[5]); 1552 } 1553 1554 /* 1555 * 16-byte READ(0x88) or WRITE(0x8A) cdb 1556 */ 1557 else if (scp->cmd_len == 16) { 1558 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | 1559 ((u32) scp->cmnd[11] << 16) | 1560 ((u32) scp->cmnd[12] << 8) | 1561 (u32) scp->cmnd[13]); 1562 1563 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1564 ((u32) scp->cmnd[7] << 16) | 1565 ((u32) scp->cmnd[8] << 8) | 1566 (u32) scp->cmnd[9]); 1567 1568 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1569 ((u32) scp->cmnd[3] << 16) | 1570 ((u32) scp->cmnd[4] << 8) | 1571 (u32) scp->cmnd[5]); 1572 1573 } 1574 1575 /* 1576 * Construct SGL 1577 */ 1578 if (instance->flag_ieee) { 1579 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1580 ldio->sge_count = megasas_make_sgl_skinny(instance, scp, 1581 &ldio->sgl); 1582 } else if (IS_DMA64) { 1583 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1584 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); 1585 } else 1586 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); 1587 1588 if (ldio->sge_count > instance->max_num_sge) { 1589 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", 1590 ldio->sge_count); 1591 return 0; 1592 } 1593 1594 /* 1595 * Sense info specific 1596 */ 1597 ldio->sense_len = SCSI_SENSE_BUFFERSIZE; 1598 ldio->sense_buf_phys_addr_hi = 0; 1599 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); 1600 1601 /* 1602 * Compute the total number of frames this command consumes. FW uses 1603 * this number to pull sufficient number of frames from host memory. 1604 */ 1605 cmd->frame_count = megasas_get_frame_count(instance, 1606 ldio->sge_count, IO_FRAME); 1607 1608 return cmd->frame_count; 1609 } 1610 1611 /** 1612 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD 1613 * and whether it's RW or non RW 1614 * @scmd: SCSI command 1615 * 1616 */ 1617 inline int megasas_cmd_type(struct scsi_cmnd *cmd) 1618 { 1619 int ret; 1620 1621 switch (cmd->cmnd[0]) { 1622 case READ_10: 1623 case WRITE_10: 1624 case READ_12: 1625 case WRITE_12: 1626 case READ_6: 1627 case WRITE_6: 1628 case READ_16: 1629 case WRITE_16: 1630 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1631 READ_WRITE_LDIO : READ_WRITE_SYSPDIO; 1632 break; 1633 default: 1634 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1635 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; 1636 } 1637 return ret; 1638 } 1639 1640 /** 1641 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds 1642 * in FW 1643 * @instance: Adapter soft state 1644 */ 1645 static inline void 1646 megasas_dump_pending_frames(struct megasas_instance *instance) 1647 { 1648 struct megasas_cmd *cmd; 1649 int i,n; 1650 union megasas_sgl *mfi_sgl; 1651 struct megasas_io_frame *ldio; 1652 struct megasas_pthru_frame *pthru; 1653 u32 sgcount; 1654 u16 max_cmd = instance->max_fw_cmds; 1655 1656 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); 1657 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); 1658 if (IS_DMA64) 1659 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); 1660 else 1661 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); 1662 1663 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); 1664 for (i = 0; i < max_cmd; i++) { 1665 cmd = instance->cmd_list[i]; 1666 if (!cmd->scmd) 1667 continue; 1668 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); 1669 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { 1670 ldio = (struct megasas_io_frame *)cmd->frame; 1671 mfi_sgl = &ldio->sgl; 1672 sgcount = ldio->sge_count; 1673 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," 1674 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1675 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, 1676 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), 1677 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); 1678 } else { 1679 pthru = (struct megasas_pthru_frame *) cmd->frame; 1680 mfi_sgl = &pthru->sgl; 1681 sgcount = pthru->sge_count; 1682 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " 1683 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1684 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, 1685 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), 1686 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); 1687 } 1688 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { 1689 for (n = 0; n < sgcount; n++) { 1690 if (IS_DMA64) 1691 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", 1692 le32_to_cpu(mfi_sgl->sge64[n].length), 1693 le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); 1694 else 1695 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", 1696 le32_to_cpu(mfi_sgl->sge32[n].length), 1697 le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); 1698 } 1699 } 1700 } /*for max_cmd*/ 1701 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); 1702 for (i = 0; i < max_cmd; i++) { 1703 1704 cmd = instance->cmd_list[i]; 1705 1706 if (cmd->sync_cmd == 1) 1707 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); 1708 } 1709 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); 1710 } 1711 1712 u32 1713 megasas_build_and_issue_cmd(struct megasas_instance *instance, 1714 struct scsi_cmnd *scmd) 1715 { 1716 struct megasas_cmd *cmd; 1717 u32 frame_count; 1718 1719 cmd = megasas_get_cmd(instance); 1720 if (!cmd) 1721 return SCSI_MLQUEUE_HOST_BUSY; 1722 1723 /* 1724 * Logical drive command 1725 */ 1726 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) 1727 frame_count = megasas_build_ldio(instance, scmd, cmd); 1728 else 1729 frame_count = megasas_build_dcdb(instance, scmd, cmd); 1730 1731 if (!frame_count) 1732 goto out_return_cmd; 1733 1734 cmd->scmd = scmd; 1735 scmd->SCp.ptr = (char *)cmd; 1736 1737 /* 1738 * Issue the command to the FW 1739 */ 1740 atomic_inc(&instance->fw_outstanding); 1741 1742 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, 1743 cmd->frame_count-1, instance->reg_set); 1744 1745 return 0; 1746 out_return_cmd: 1747 megasas_return_cmd(instance, cmd); 1748 return SCSI_MLQUEUE_HOST_BUSY; 1749 } 1750 1751 1752 /** 1753 * megasas_queue_command - Queue entry point 1754 * @scmd: SCSI command to be queued 1755 * @done: Callback entry point 1756 */ 1757 static int 1758 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 1759 { 1760 struct megasas_instance *instance; 1761 struct MR_PRIV_DEVICE *mr_device_priv_data; 1762 1763 instance = (struct megasas_instance *) 1764 scmd->device->host->hostdata; 1765 1766 if (instance->unload == 1) { 1767 scmd->result = DID_NO_CONNECT << 16; 1768 scmd->scsi_done(scmd); 1769 return 0; 1770 } 1771 1772 if (instance->issuepend_done == 0) 1773 return SCSI_MLQUEUE_HOST_BUSY; 1774 1775 1776 /* Check for an mpio path and adjust behavior */ 1777 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 1778 if (megasas_check_mpio_paths(instance, scmd) == 1779 (DID_REQUEUE << 16)) { 1780 return SCSI_MLQUEUE_HOST_BUSY; 1781 } else { 1782 scmd->result = DID_NO_CONNECT << 16; 1783 scmd->scsi_done(scmd); 1784 return 0; 1785 } 1786 } 1787 1788 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1789 scmd->result = DID_NO_CONNECT << 16; 1790 scmd->scsi_done(scmd); 1791 return 0; 1792 } 1793 1794 mr_device_priv_data = scmd->device->hostdata; 1795 if (!mr_device_priv_data) { 1796 scmd->result = DID_NO_CONNECT << 16; 1797 scmd->scsi_done(scmd); 1798 return 0; 1799 } 1800 1801 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1802 return SCSI_MLQUEUE_HOST_BUSY; 1803 1804 if (mr_device_priv_data->tm_busy) 1805 return SCSI_MLQUEUE_DEVICE_BUSY; 1806 1807 1808 scmd->result = 0; 1809 1810 if (MEGASAS_IS_LOGICAL(scmd->device) && 1811 (scmd->device->id >= instance->fw_supported_vd_count || 1812 scmd->device->lun)) { 1813 scmd->result = DID_BAD_TARGET << 16; 1814 goto out_done; 1815 } 1816 1817 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && 1818 MEGASAS_IS_LOGICAL(scmd->device) && 1819 (!instance->fw_sync_cache_support)) { 1820 scmd->result = DID_OK << 16; 1821 goto out_done; 1822 } 1823 1824 return instance->instancet->build_and_issue_cmd(instance, scmd); 1825 1826 out_done: 1827 scmd->scsi_done(scmd); 1828 return 0; 1829 } 1830 1831 static struct megasas_instance *megasas_lookup_instance(u16 host_no) 1832 { 1833 int i; 1834 1835 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 1836 1837 if ((megasas_mgmt_info.instance[i]) && 1838 (megasas_mgmt_info.instance[i]->host->host_no == host_no)) 1839 return megasas_mgmt_info.instance[i]; 1840 } 1841 1842 return NULL; 1843 } 1844 1845 /* 1846 * megasas_set_dynamic_target_properties - 1847 * Device property set by driver may not be static and it is required to be 1848 * updated after OCR 1849 * 1850 * set tm_capable. 1851 * set dma alignment (only for eedp protection enable vd). 1852 * 1853 * @sdev: OS provided scsi device 1854 * 1855 * Returns void 1856 */ 1857 void megasas_set_dynamic_target_properties(struct scsi_device *sdev, 1858 bool is_target_prop) 1859 { 1860 u16 pd_index = 0, ld; 1861 u32 device_id; 1862 struct megasas_instance *instance; 1863 struct fusion_context *fusion; 1864 struct MR_PRIV_DEVICE *mr_device_priv_data; 1865 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1866 struct MR_LD_RAID *raid; 1867 struct MR_DRV_RAID_MAP_ALL *local_map_ptr; 1868 1869 instance = megasas_lookup_instance(sdev->host->host_no); 1870 fusion = instance->ctrl_context; 1871 mr_device_priv_data = sdev->hostdata; 1872 1873 if (!fusion || !mr_device_priv_data) 1874 return; 1875 1876 if (MEGASAS_IS_LOGICAL(sdev)) { 1877 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) 1878 + sdev->id; 1879 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; 1880 ld = MR_TargetIdToLdGet(device_id, local_map_ptr); 1881 if (ld >= instance->fw_supported_vd_count) 1882 return; 1883 raid = MR_LdRaidGet(ld, local_map_ptr); 1884 1885 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) 1886 blk_queue_update_dma_alignment(sdev->request_queue, 0x7); 1887 1888 mr_device_priv_data->is_tm_capable = 1889 raid->capability.tmCapable; 1890 } else if (instance->use_seqnum_jbod_fp) { 1891 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1892 sdev->id; 1893 pd_sync = (void *)fusion->pd_seq_sync 1894 [(instance->pd_seq_map_id - 1) & 1]; 1895 mr_device_priv_data->is_tm_capable = 1896 pd_sync->seq[pd_index].capability.tmCapable; 1897 } 1898 1899 if (is_target_prop && instance->tgt_prop->reset_tmo) { 1900 /* 1901 * If FW provides a target reset timeout value, driver will use 1902 * it. If not set, fallback to default values. 1903 */ 1904 mr_device_priv_data->target_reset_tmo = 1905 min_t(u8, instance->max_reset_tmo, 1906 instance->tgt_prop->reset_tmo); 1907 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo; 1908 } else { 1909 mr_device_priv_data->target_reset_tmo = 1910 MEGASAS_DEFAULT_TM_TIMEOUT; 1911 mr_device_priv_data->task_abort_tmo = 1912 MEGASAS_DEFAULT_TM_TIMEOUT; 1913 } 1914 } 1915 1916 /* 1917 * megasas_set_nvme_device_properties - 1918 * set nomerges=2 1919 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). 1920 * set maximum io transfer = MDTS of NVME device provided by MR firmware. 1921 * 1922 * MR firmware provides value in KB. Caller of this function converts 1923 * kb into bytes. 1924 * 1925 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, 1926 * MR firmware provides value 128 as (32 * 4K) = 128K. 1927 * 1928 * @sdev: scsi device 1929 * @max_io_size: maximum io transfer size 1930 * 1931 */ 1932 static inline void 1933 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) 1934 { 1935 struct megasas_instance *instance; 1936 u32 mr_nvme_pg_size; 1937 1938 instance = (struct megasas_instance *)sdev->host->hostdata; 1939 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, 1940 MR_DEFAULT_NVME_PAGE_SIZE); 1941 1942 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512)); 1943 1944 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue); 1945 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); 1946 } 1947 1948 /* 1949 * megasas_set_fw_assisted_qd - 1950 * set device queue depth to can_queue 1951 * set device queue depth to fw assisted qd 1952 * 1953 * @sdev: scsi device 1954 * @is_target_prop true, if fw provided target properties. 1955 */ 1956 static void megasas_set_fw_assisted_qd(struct scsi_device *sdev, 1957 bool is_target_prop) 1958 { 1959 u8 interface_type; 1960 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN; 1961 u32 tgt_device_qd; 1962 struct megasas_instance *instance; 1963 struct MR_PRIV_DEVICE *mr_device_priv_data; 1964 1965 instance = megasas_lookup_instance(sdev->host->host_no); 1966 mr_device_priv_data = sdev->hostdata; 1967 interface_type = mr_device_priv_data->interface_type; 1968 1969 switch (interface_type) { 1970 case SAS_PD: 1971 device_qd = MEGASAS_SAS_QD; 1972 break; 1973 case SATA_PD: 1974 device_qd = MEGASAS_SATA_QD; 1975 break; 1976 case NVME_PD: 1977 device_qd = MEGASAS_NVME_QD; 1978 break; 1979 } 1980 1981 if (is_target_prop) { 1982 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth); 1983 if (tgt_device_qd && 1984 (tgt_device_qd <= instance->host->can_queue)) 1985 device_qd = tgt_device_qd; 1986 } 1987 1988 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE) 1989 device_qd = instance->host->can_queue; 1990 1991 scsi_change_queue_depth(sdev, device_qd); 1992 } 1993 1994 /* 1995 * megasas_set_static_target_properties - 1996 * Device property set by driver are static and it is not required to be 1997 * updated after OCR. 1998 * 1999 * set io timeout 2000 * set device queue depth 2001 * set nvme device properties. see - megasas_set_nvme_device_properties 2002 * 2003 * @sdev: scsi device 2004 * @is_target_prop true, if fw provided target properties. 2005 */ 2006 static void megasas_set_static_target_properties(struct scsi_device *sdev, 2007 bool is_target_prop) 2008 { 2009 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; 2010 struct megasas_instance *instance; 2011 2012 instance = megasas_lookup_instance(sdev->host->host_no); 2013 2014 /* 2015 * The RAID firmware may require extended timeouts. 2016 */ 2017 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); 2018 2019 /* max_io_size_kb will be set to non zero for 2020 * nvme based vd and syspd. 2021 */ 2022 if (is_target_prop) 2023 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb); 2024 2025 if (instance->nvme_page_size && max_io_size_kb) 2026 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10)); 2027 2028 megasas_set_fw_assisted_qd(sdev, is_target_prop); 2029 } 2030 2031 2032 static int megasas_slave_configure(struct scsi_device *sdev) 2033 { 2034 u16 pd_index = 0; 2035 struct megasas_instance *instance; 2036 int ret_target_prop = DCMD_FAILED; 2037 bool is_target_prop = false; 2038 2039 instance = megasas_lookup_instance(sdev->host->host_no); 2040 if (instance->pd_list_not_supported) { 2041 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { 2042 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2043 sdev->id; 2044 if (instance->pd_list[pd_index].driveState != 2045 MR_PD_STATE_SYSTEM) 2046 return -ENXIO; 2047 } 2048 } 2049 2050 mutex_lock(&instance->reset_mutex); 2051 /* Send DCMD to Firmware and cache the information */ 2052 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) 2053 megasas_get_pd_info(instance, sdev); 2054 2055 /* Some ventura firmware may not have instance->nvme_page_size set. 2056 * Do not send MR_DCMD_DRV_GET_TARGET_PROP 2057 */ 2058 if ((instance->tgt_prop) && (instance->nvme_page_size)) 2059 ret_target_prop = megasas_get_target_prop(instance, sdev); 2060 2061 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 2062 megasas_set_static_target_properties(sdev, is_target_prop); 2063 2064 /* This sdev property may change post OCR */ 2065 megasas_set_dynamic_target_properties(sdev, is_target_prop); 2066 2067 mutex_unlock(&instance->reset_mutex); 2068 2069 return 0; 2070 } 2071 2072 static int megasas_slave_alloc(struct scsi_device *sdev) 2073 { 2074 u16 pd_index = 0; 2075 struct megasas_instance *instance ; 2076 struct MR_PRIV_DEVICE *mr_device_priv_data; 2077 2078 instance = megasas_lookup_instance(sdev->host->host_no); 2079 if (!MEGASAS_IS_LOGICAL(sdev)) { 2080 /* 2081 * Open the OS scan to the SYSTEM PD 2082 */ 2083 pd_index = 2084 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2085 sdev->id; 2086 if ((instance->pd_list_not_supported || 2087 instance->pd_list[pd_index].driveState == 2088 MR_PD_STATE_SYSTEM)) { 2089 goto scan_target; 2090 } 2091 return -ENXIO; 2092 } 2093 2094 scan_target: 2095 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), 2096 GFP_KERNEL); 2097 if (!mr_device_priv_data) 2098 return -ENOMEM; 2099 sdev->hostdata = mr_device_priv_data; 2100 2101 atomic_set(&mr_device_priv_data->r1_ldio_hint, 2102 instance->r1_ldio_hint_default); 2103 return 0; 2104 } 2105 2106 static void megasas_slave_destroy(struct scsi_device *sdev) 2107 { 2108 kfree(sdev->hostdata); 2109 sdev->hostdata = NULL; 2110 } 2111 2112 /* 2113 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a 2114 * kill adapter 2115 * @instance: Adapter soft state 2116 * 2117 */ 2118 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) 2119 { 2120 int i; 2121 struct megasas_cmd *cmd_mfi; 2122 struct megasas_cmd_fusion *cmd_fusion; 2123 struct fusion_context *fusion = instance->ctrl_context; 2124 2125 /* Find all outstanding ioctls */ 2126 if (fusion) { 2127 for (i = 0; i < instance->max_fw_cmds; i++) { 2128 cmd_fusion = fusion->cmd_list[i]; 2129 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { 2130 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; 2131 if (cmd_mfi->sync_cmd && 2132 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { 2133 cmd_mfi->frame->hdr.cmd_status = 2134 MFI_STAT_WRONG_STATE; 2135 megasas_complete_cmd(instance, 2136 cmd_mfi, DID_OK); 2137 } 2138 } 2139 } 2140 } else { 2141 for (i = 0; i < instance->max_fw_cmds; i++) { 2142 cmd_mfi = instance->cmd_list[i]; 2143 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != 2144 MFI_CMD_ABORT) 2145 megasas_complete_cmd(instance, cmd_mfi, DID_OK); 2146 } 2147 } 2148 } 2149 2150 2151 void megaraid_sas_kill_hba(struct megasas_instance *instance) 2152 { 2153 /* Set critical error to block I/O & ioctls in case caller didn't */ 2154 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2155 /* Wait 1 second to ensure IO or ioctls in build have posted */ 2156 msleep(1000); 2157 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 2158 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 2159 (instance->adapter_type != MFI_SERIES)) { 2160 if (!instance->requestorId) { 2161 writel(MFI_STOP_ADP, &instance->reg_set->doorbell); 2162 /* Flush */ 2163 readl(&instance->reg_set->doorbell); 2164 } 2165 if (instance->requestorId && instance->peerIsPresent) 2166 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 2167 } else { 2168 writel(MFI_STOP_ADP, 2169 &instance->reg_set->inbound_doorbell); 2170 } 2171 /* Complete outstanding ioctls when adapter is killed */ 2172 megasas_complete_outstanding_ioctls(instance); 2173 } 2174 2175 /** 2176 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be 2177 * restored to max value 2178 * @instance: Adapter soft state 2179 * 2180 */ 2181 void 2182 megasas_check_and_restore_queue_depth(struct megasas_instance *instance) 2183 { 2184 unsigned long flags; 2185 2186 if (instance->flag & MEGASAS_FW_BUSY 2187 && time_after(jiffies, instance->last_time + 5 * HZ) 2188 && atomic_read(&instance->fw_outstanding) < 2189 instance->throttlequeuedepth + 1) { 2190 2191 spin_lock_irqsave(instance->host->host_lock, flags); 2192 instance->flag &= ~MEGASAS_FW_BUSY; 2193 2194 instance->host->can_queue = instance->cur_can_queue; 2195 spin_unlock_irqrestore(instance->host->host_lock, flags); 2196 } 2197 } 2198 2199 /** 2200 * megasas_complete_cmd_dpc - Returns FW's controller structure 2201 * @instance_addr: Address of adapter soft state 2202 * 2203 * Tasklet to complete cmds 2204 */ 2205 static void megasas_complete_cmd_dpc(unsigned long instance_addr) 2206 { 2207 u32 producer; 2208 u32 consumer; 2209 u32 context; 2210 struct megasas_cmd *cmd; 2211 struct megasas_instance *instance = 2212 (struct megasas_instance *)instance_addr; 2213 unsigned long flags; 2214 2215 /* If we have already declared adapter dead, donot complete cmds */ 2216 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 2217 return; 2218 2219 spin_lock_irqsave(&instance->completion_lock, flags); 2220 2221 producer = le32_to_cpu(*instance->producer); 2222 consumer = le32_to_cpu(*instance->consumer); 2223 2224 while (consumer != producer) { 2225 context = le32_to_cpu(instance->reply_queue[consumer]); 2226 if (context >= instance->max_fw_cmds) { 2227 dev_err(&instance->pdev->dev, "Unexpected context value %x\n", 2228 context); 2229 BUG(); 2230 } 2231 2232 cmd = instance->cmd_list[context]; 2233 2234 megasas_complete_cmd(instance, cmd, DID_OK); 2235 2236 consumer++; 2237 if (consumer == (instance->max_fw_cmds + 1)) { 2238 consumer = 0; 2239 } 2240 } 2241 2242 *instance->consumer = cpu_to_le32(producer); 2243 2244 spin_unlock_irqrestore(&instance->completion_lock, flags); 2245 2246 /* 2247 * Check if we can restore can_queue 2248 */ 2249 megasas_check_and_restore_queue_depth(instance); 2250 } 2251 2252 static void megasas_sriov_heartbeat_handler(struct timer_list *t); 2253 2254 /** 2255 * megasas_start_timer - Initializes sriov heartbeat timer object 2256 * @instance: Adapter soft state 2257 * 2258 */ 2259 void megasas_start_timer(struct megasas_instance *instance) 2260 { 2261 struct timer_list *timer = &instance->sriov_heartbeat_timer; 2262 2263 timer_setup(timer, megasas_sriov_heartbeat_handler, 0); 2264 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF; 2265 add_timer(timer); 2266 } 2267 2268 static void 2269 megasas_internal_reset_defer_cmds(struct megasas_instance *instance); 2270 2271 static void 2272 process_fw_state_change_wq(struct work_struct *work); 2273 2274 static void megasas_do_ocr(struct megasas_instance *instance) 2275 { 2276 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 2277 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 2278 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 2279 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 2280 } 2281 instance->instancet->disable_intr(instance); 2282 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 2283 instance->issuepend_done = 0; 2284 2285 atomic_set(&instance->fw_outstanding, 0); 2286 megasas_internal_reset_defer_cmds(instance); 2287 process_fw_state_change_wq(&instance->work_init); 2288 } 2289 2290 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, 2291 int initial) 2292 { 2293 struct megasas_cmd *cmd; 2294 struct megasas_dcmd_frame *dcmd; 2295 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; 2296 dma_addr_t new_affiliation_111_h; 2297 int ld, retval = 0; 2298 u8 thisVf; 2299 2300 cmd = megasas_get_cmd(instance); 2301 2302 if (!cmd) { 2303 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" 2304 "Failed to get cmd for scsi%d\n", 2305 instance->host->host_no); 2306 return -ENOMEM; 2307 } 2308 2309 dcmd = &cmd->frame->dcmd; 2310 2311 if (!instance->vf_affiliation_111) { 2312 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2313 "affiliation for scsi%d\n", instance->host->host_no); 2314 megasas_return_cmd(instance, cmd); 2315 return -ENOMEM; 2316 } 2317 2318 if (initial) 2319 memset(instance->vf_affiliation_111, 0, 2320 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2321 else { 2322 new_affiliation_111 = 2323 dma_alloc_coherent(&instance->pdev->dev, 2324 sizeof(struct MR_LD_VF_AFFILIATION_111), 2325 &new_affiliation_111_h, GFP_KERNEL); 2326 if (!new_affiliation_111) { 2327 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2328 "memory for new affiliation for scsi%d\n", 2329 instance->host->host_no); 2330 megasas_return_cmd(instance, cmd); 2331 return -ENOMEM; 2332 } 2333 } 2334 2335 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2336 2337 dcmd->cmd = MFI_CMD_DCMD; 2338 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2339 dcmd->sge_count = 1; 2340 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2341 dcmd->timeout = 0; 2342 dcmd->pad_0 = 0; 2343 dcmd->data_xfer_len = 2344 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); 2345 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); 2346 2347 if (initial) 2348 dcmd->sgl.sge32[0].phys_addr = 2349 cpu_to_le32(instance->vf_affiliation_111_h); 2350 else 2351 dcmd->sgl.sge32[0].phys_addr = 2352 cpu_to_le32(new_affiliation_111_h); 2353 2354 dcmd->sgl.sge32[0].length = cpu_to_le32( 2355 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2356 2357 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2358 "scsi%d\n", instance->host->host_no); 2359 2360 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2361 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2362 " failed with status 0x%x for scsi%d\n", 2363 dcmd->cmd_status, instance->host->host_no); 2364 retval = 1; /* Do a scan if we couldn't get affiliation */ 2365 goto out; 2366 } 2367 2368 if (!initial) { 2369 thisVf = new_affiliation_111->thisVf; 2370 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) 2371 if (instance->vf_affiliation_111->map[ld].policy[thisVf] != 2372 new_affiliation_111->map[ld].policy[thisVf]) { 2373 dev_warn(&instance->pdev->dev, "SR-IOV: " 2374 "Got new LD/VF affiliation for scsi%d\n", 2375 instance->host->host_no); 2376 memcpy(instance->vf_affiliation_111, 2377 new_affiliation_111, 2378 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2379 retval = 1; 2380 goto out; 2381 } 2382 } 2383 out: 2384 if (new_affiliation_111) { 2385 dma_free_coherent(&instance->pdev->dev, 2386 sizeof(struct MR_LD_VF_AFFILIATION_111), 2387 new_affiliation_111, 2388 new_affiliation_111_h); 2389 } 2390 2391 megasas_return_cmd(instance, cmd); 2392 2393 return retval; 2394 } 2395 2396 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, 2397 int initial) 2398 { 2399 struct megasas_cmd *cmd; 2400 struct megasas_dcmd_frame *dcmd; 2401 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; 2402 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; 2403 dma_addr_t new_affiliation_h; 2404 int i, j, retval = 0, found = 0, doscan = 0; 2405 u8 thisVf; 2406 2407 cmd = megasas_get_cmd(instance); 2408 2409 if (!cmd) { 2410 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " 2411 "Failed to get cmd for scsi%d\n", 2412 instance->host->host_no); 2413 return -ENOMEM; 2414 } 2415 2416 dcmd = &cmd->frame->dcmd; 2417 2418 if (!instance->vf_affiliation) { 2419 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2420 "affiliation for scsi%d\n", instance->host->host_no); 2421 megasas_return_cmd(instance, cmd); 2422 return -ENOMEM; 2423 } 2424 2425 if (initial) 2426 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2427 sizeof(struct MR_LD_VF_AFFILIATION)); 2428 else { 2429 new_affiliation = 2430 dma_alloc_coherent(&instance->pdev->dev, 2431 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), 2432 &new_affiliation_h, GFP_KERNEL); 2433 if (!new_affiliation) { 2434 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2435 "memory for new affiliation for scsi%d\n", 2436 instance->host->host_no); 2437 megasas_return_cmd(instance, cmd); 2438 return -ENOMEM; 2439 } 2440 } 2441 2442 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2443 2444 dcmd->cmd = MFI_CMD_DCMD; 2445 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2446 dcmd->sge_count = 1; 2447 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2448 dcmd->timeout = 0; 2449 dcmd->pad_0 = 0; 2450 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2451 sizeof(struct MR_LD_VF_AFFILIATION)); 2452 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); 2453 2454 if (initial) 2455 dcmd->sgl.sge32[0].phys_addr = 2456 cpu_to_le32(instance->vf_affiliation_h); 2457 else 2458 dcmd->sgl.sge32[0].phys_addr = 2459 cpu_to_le32(new_affiliation_h); 2460 2461 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2462 sizeof(struct MR_LD_VF_AFFILIATION)); 2463 2464 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2465 "scsi%d\n", instance->host->host_no); 2466 2467 2468 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2469 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2470 " failed with status 0x%x for scsi%d\n", 2471 dcmd->cmd_status, instance->host->host_no); 2472 retval = 1; /* Do a scan if we couldn't get affiliation */ 2473 goto out; 2474 } 2475 2476 if (!initial) { 2477 if (!new_affiliation->ldCount) { 2478 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2479 "affiliation for passive path for scsi%d\n", 2480 instance->host->host_no); 2481 retval = 1; 2482 goto out; 2483 } 2484 newmap = new_affiliation->map; 2485 savedmap = instance->vf_affiliation->map; 2486 thisVf = new_affiliation->thisVf; 2487 for (i = 0 ; i < new_affiliation->ldCount; i++) { 2488 found = 0; 2489 for (j = 0; j < instance->vf_affiliation->ldCount; 2490 j++) { 2491 if (newmap->ref.targetId == 2492 savedmap->ref.targetId) { 2493 found = 1; 2494 if (newmap->policy[thisVf] != 2495 savedmap->policy[thisVf]) { 2496 doscan = 1; 2497 goto out; 2498 } 2499 } 2500 savedmap = (struct MR_LD_VF_MAP *) 2501 ((unsigned char *)savedmap + 2502 savedmap->size); 2503 } 2504 if (!found && newmap->policy[thisVf] != 2505 MR_LD_ACCESS_HIDDEN) { 2506 doscan = 1; 2507 goto out; 2508 } 2509 newmap = (struct MR_LD_VF_MAP *) 2510 ((unsigned char *)newmap + newmap->size); 2511 } 2512 2513 newmap = new_affiliation->map; 2514 savedmap = instance->vf_affiliation->map; 2515 2516 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { 2517 found = 0; 2518 for (j = 0 ; j < new_affiliation->ldCount; j++) { 2519 if (savedmap->ref.targetId == 2520 newmap->ref.targetId) { 2521 found = 1; 2522 if (savedmap->policy[thisVf] != 2523 newmap->policy[thisVf]) { 2524 doscan = 1; 2525 goto out; 2526 } 2527 } 2528 newmap = (struct MR_LD_VF_MAP *) 2529 ((unsigned char *)newmap + 2530 newmap->size); 2531 } 2532 if (!found && savedmap->policy[thisVf] != 2533 MR_LD_ACCESS_HIDDEN) { 2534 doscan = 1; 2535 goto out; 2536 } 2537 savedmap = (struct MR_LD_VF_MAP *) 2538 ((unsigned char *)savedmap + 2539 savedmap->size); 2540 } 2541 } 2542 out: 2543 if (doscan) { 2544 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2545 "affiliation for scsi%d\n", instance->host->host_no); 2546 memcpy(instance->vf_affiliation, new_affiliation, 2547 new_affiliation->size); 2548 retval = 1; 2549 } 2550 2551 if (new_affiliation) 2552 dma_free_coherent(&instance->pdev->dev, 2553 (MAX_LOGICAL_DRIVES + 1) * 2554 sizeof(struct MR_LD_VF_AFFILIATION), 2555 new_affiliation, new_affiliation_h); 2556 megasas_return_cmd(instance, cmd); 2557 2558 return retval; 2559 } 2560 2561 /* This function will get the current SR-IOV LD/VF affiliation */ 2562 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 2563 int initial) 2564 { 2565 int retval; 2566 2567 if (instance->PlasmaFW111) 2568 retval = megasas_get_ld_vf_affiliation_111(instance, initial); 2569 else 2570 retval = megasas_get_ld_vf_affiliation_12(instance, initial); 2571 return retval; 2572 } 2573 2574 /* This function will tell FW to start the SR-IOV heartbeat */ 2575 int megasas_sriov_start_heartbeat(struct megasas_instance *instance, 2576 int initial) 2577 { 2578 struct megasas_cmd *cmd; 2579 struct megasas_dcmd_frame *dcmd; 2580 int retval = 0; 2581 2582 cmd = megasas_get_cmd(instance); 2583 2584 if (!cmd) { 2585 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " 2586 "Failed to get cmd for scsi%d\n", 2587 instance->host->host_no); 2588 return -ENOMEM; 2589 } 2590 2591 dcmd = &cmd->frame->dcmd; 2592 2593 if (initial) { 2594 instance->hb_host_mem = 2595 dma_alloc_coherent(&instance->pdev->dev, 2596 sizeof(struct MR_CTRL_HB_HOST_MEM), 2597 &instance->hb_host_mem_h, 2598 GFP_KERNEL); 2599 if (!instance->hb_host_mem) { 2600 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" 2601 " memory for heartbeat host memory for scsi%d\n", 2602 instance->host->host_no); 2603 retval = -ENOMEM; 2604 goto out; 2605 } 2606 } 2607 2608 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2609 2610 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2611 dcmd->cmd = MFI_CMD_DCMD; 2612 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2613 dcmd->sge_count = 1; 2614 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2615 dcmd->timeout = 0; 2616 dcmd->pad_0 = 0; 2617 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2618 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); 2619 2620 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h, 2621 sizeof(struct MR_CTRL_HB_HOST_MEM)); 2622 2623 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", 2624 instance->host->host_no); 2625 2626 if ((instance->adapter_type != MFI_SERIES) && 2627 !instance->mask_interrupts) 2628 retval = megasas_issue_blocked_cmd(instance, cmd, 2629 MEGASAS_ROUTINE_WAIT_TIME_VF); 2630 else 2631 retval = megasas_issue_polled(instance, cmd); 2632 2633 if (retval) { 2634 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" 2635 "_MEM_ALLOC DCMD %s for scsi%d\n", 2636 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? 2637 "timed out" : "failed", instance->host->host_no); 2638 retval = 1; 2639 } 2640 2641 out: 2642 megasas_return_cmd(instance, cmd); 2643 2644 return retval; 2645 } 2646 2647 /* Handler for SR-IOV heartbeat */ 2648 static void megasas_sriov_heartbeat_handler(struct timer_list *t) 2649 { 2650 struct megasas_instance *instance = 2651 from_timer(instance, t, sriov_heartbeat_timer); 2652 2653 if (instance->hb_host_mem->HB.fwCounter != 2654 instance->hb_host_mem->HB.driverCounter) { 2655 instance->hb_host_mem->HB.driverCounter = 2656 instance->hb_host_mem->HB.fwCounter; 2657 mod_timer(&instance->sriov_heartbeat_timer, 2658 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 2659 } else { 2660 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " 2661 "completed for scsi%d\n", instance->host->host_no); 2662 schedule_work(&instance->work_init); 2663 } 2664 } 2665 2666 /** 2667 * megasas_wait_for_outstanding - Wait for all outstanding cmds 2668 * @instance: Adapter soft state 2669 * 2670 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to 2671 * complete all its outstanding commands. Returns error if one or more IOs 2672 * are pending after this time period. It also marks the controller dead. 2673 */ 2674 static int megasas_wait_for_outstanding(struct megasas_instance *instance) 2675 { 2676 int i, sl, outstanding; 2677 u32 reset_index; 2678 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 2679 unsigned long flags; 2680 struct list_head clist_local; 2681 struct megasas_cmd *reset_cmd; 2682 u32 fw_state; 2683 2684 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2685 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", 2686 __func__, __LINE__); 2687 return FAILED; 2688 } 2689 2690 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2691 2692 INIT_LIST_HEAD(&clist_local); 2693 spin_lock_irqsave(&instance->hba_lock, flags); 2694 list_splice_init(&instance->internal_reset_pending_q, 2695 &clist_local); 2696 spin_unlock_irqrestore(&instance->hba_lock, flags); 2697 2698 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); 2699 for (i = 0; i < wait_time; i++) { 2700 msleep(1000); 2701 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 2702 break; 2703 } 2704 2705 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2706 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); 2707 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2708 return FAILED; 2709 } 2710 2711 reset_index = 0; 2712 while (!list_empty(&clist_local)) { 2713 reset_cmd = list_entry((&clist_local)->next, 2714 struct megasas_cmd, list); 2715 list_del_init(&reset_cmd->list); 2716 if (reset_cmd->scmd) { 2717 reset_cmd->scmd->result = DID_REQUEUE << 16; 2718 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", 2719 reset_index, reset_cmd, 2720 reset_cmd->scmd->cmnd[0]); 2721 2722 reset_cmd->scmd->scsi_done(reset_cmd->scmd); 2723 megasas_return_cmd(instance, reset_cmd); 2724 } else if (reset_cmd->sync_cmd) { 2725 dev_notice(&instance->pdev->dev, "%p synch cmds" 2726 "reset queue\n", 2727 reset_cmd); 2728 2729 reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 2730 instance->instancet->fire_cmd(instance, 2731 reset_cmd->frame_phys_addr, 2732 0, instance->reg_set); 2733 } else { 2734 dev_notice(&instance->pdev->dev, "%p unexpected" 2735 "cmds lst\n", 2736 reset_cmd); 2737 } 2738 reset_index++; 2739 } 2740 2741 return SUCCESS; 2742 } 2743 2744 for (i = 0; i < resetwaittime; i++) { 2745 outstanding = atomic_read(&instance->fw_outstanding); 2746 2747 if (!outstanding) 2748 break; 2749 2750 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 2751 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " 2752 "commands to complete\n",i,outstanding); 2753 /* 2754 * Call cmd completion routine. Cmd to be 2755 * be completed directly without depending on isr. 2756 */ 2757 megasas_complete_cmd_dpc((unsigned long)instance); 2758 } 2759 2760 msleep(1000); 2761 } 2762 2763 i = 0; 2764 outstanding = atomic_read(&instance->fw_outstanding); 2765 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2766 2767 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2768 goto no_outstanding; 2769 2770 if (instance->disableOnlineCtrlReset) 2771 goto kill_hba_and_failed; 2772 do { 2773 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { 2774 dev_info(&instance->pdev->dev, 2775 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n", 2776 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); 2777 if (i == 3) 2778 goto kill_hba_and_failed; 2779 megasas_do_ocr(instance); 2780 2781 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2782 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", 2783 __func__, __LINE__); 2784 return FAILED; 2785 } 2786 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", 2787 __func__, __LINE__); 2788 2789 for (sl = 0; sl < 10; sl++) 2790 msleep(500); 2791 2792 outstanding = atomic_read(&instance->fw_outstanding); 2793 2794 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2795 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2796 goto no_outstanding; 2797 } 2798 i++; 2799 } while (i <= 3); 2800 2801 no_outstanding: 2802 2803 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", 2804 __func__, __LINE__); 2805 return SUCCESS; 2806 2807 kill_hba_and_failed: 2808 2809 /* Reset not supported, kill adapter */ 2810 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" 2811 " disableOnlineCtrlReset %d fw_outstanding %d \n", 2812 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, 2813 atomic_read(&instance->fw_outstanding)); 2814 megasas_dump_pending_frames(instance); 2815 megaraid_sas_kill_hba(instance); 2816 2817 return FAILED; 2818 } 2819 2820 /** 2821 * megasas_generic_reset - Generic reset routine 2822 * @scmd: Mid-layer SCSI command 2823 * 2824 * This routine implements a generic reset handler for device, bus and host 2825 * reset requests. Device, bus and host specific reset handlers can use this 2826 * function after they do their specific tasks. 2827 */ 2828 static int megasas_generic_reset(struct scsi_cmnd *scmd) 2829 { 2830 int ret_val; 2831 struct megasas_instance *instance; 2832 2833 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2834 2835 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", 2836 scmd->cmnd[0], scmd->retries); 2837 2838 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2839 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); 2840 return FAILED; 2841 } 2842 2843 ret_val = megasas_wait_for_outstanding(instance); 2844 if (ret_val == SUCCESS) 2845 dev_notice(&instance->pdev->dev, "reset successful\n"); 2846 else 2847 dev_err(&instance->pdev->dev, "failed to do reset\n"); 2848 2849 return ret_val; 2850 } 2851 2852 /** 2853 * megasas_reset_timer - quiesce the adapter if required 2854 * @scmd: scsi cmnd 2855 * 2856 * Sets the FW busy flag and reduces the host->can_queue if the 2857 * cmd has not been completed within the timeout period. 2858 */ 2859 static enum 2860 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) 2861 { 2862 struct megasas_instance *instance; 2863 unsigned long flags; 2864 2865 if (time_after(jiffies, scmd->jiffies_at_alloc + 2866 (scmd_timeout * 2) * HZ)) { 2867 return BLK_EH_DONE; 2868 } 2869 2870 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2871 if (!(instance->flag & MEGASAS_FW_BUSY)) { 2872 /* FW is busy, throttle IO */ 2873 spin_lock_irqsave(instance->host->host_lock, flags); 2874 2875 instance->host->can_queue = instance->throttlequeuedepth; 2876 instance->last_time = jiffies; 2877 instance->flag |= MEGASAS_FW_BUSY; 2878 2879 spin_unlock_irqrestore(instance->host->host_lock, flags); 2880 } 2881 return BLK_EH_RESET_TIMER; 2882 } 2883 2884 /** 2885 * megasas_dump - This function will print hexdump of provided buffer. 2886 * @buf: Buffer to be dumped 2887 * @sz: Size in bytes 2888 * @format: Different formats of dumping e.g. format=n will 2889 * cause only 'n' 32 bit words to be dumped in a single 2890 * line. 2891 */ 2892 inline void 2893 megasas_dump(void *buf, int sz, int format) 2894 { 2895 int i; 2896 __le32 *buf_loc = (__le32 *)buf; 2897 2898 for (i = 0; i < (sz / sizeof(__le32)); i++) { 2899 if ((i % format) == 0) { 2900 if (i != 0) 2901 printk(KERN_CONT "\n"); 2902 printk(KERN_CONT "%08x: ", (i * 4)); 2903 } 2904 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i])); 2905 } 2906 printk(KERN_CONT "\n"); 2907 } 2908 2909 /** 2910 * megasas_dump_reg_set - This function will print hexdump of register set 2911 * @buf: Buffer to be dumped 2912 * @sz: Size in bytes 2913 * @format: Different formats of dumping e.g. format=n will 2914 * cause only 'n' 32 bit words to be dumped in a 2915 * single line. 2916 */ 2917 inline void 2918 megasas_dump_reg_set(void __iomem *reg_set) 2919 { 2920 unsigned int i, sz = 256; 2921 u32 __iomem *reg = (u32 __iomem *)reg_set; 2922 2923 for (i = 0; i < (sz / sizeof(u32)); i++) 2924 printk("%08x: %08x\n", (i * 4), readl(®[i])); 2925 } 2926 2927 /** 2928 * megasas_dump_fusion_io - This function will print key details 2929 * of SCSI IO 2930 * @scmd: SCSI command pointer of SCSI IO 2931 */ 2932 void 2933 megasas_dump_fusion_io(struct scsi_cmnd *scmd) 2934 { 2935 struct megasas_cmd_fusion *cmd; 2936 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; 2937 struct megasas_instance *instance; 2938 2939 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr; 2940 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2941 2942 scmd_printk(KERN_INFO, scmd, 2943 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n", 2944 scmd, scmd->retries, scmd->allowed); 2945 scsi_print_command(scmd); 2946 2947 if (cmd) { 2948 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; 2949 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n"); 2950 scmd_printk(KERN_INFO, scmd, 2951 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n", 2952 req_desc->SCSIIO.RequestFlags, 2953 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID, 2954 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle); 2955 2956 printk(KERN_INFO "IO request frame:\n"); 2957 megasas_dump(cmd->io_request, 2958 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8); 2959 printk(KERN_INFO "Chain frame:\n"); 2960 megasas_dump(cmd->sg_frame, 2961 instance->max_chain_frame_sz, 8); 2962 } 2963 2964 } 2965 2966 /* 2967 * megasas_dump_sys_regs - This function will dump system registers through 2968 * sysfs. 2969 * @reg_set: Pointer to System register set. 2970 * @buf: Buffer to which output is to be written. 2971 * @return: Number of bytes written to buffer. 2972 */ 2973 static inline ssize_t 2974 megasas_dump_sys_regs(void __iomem *reg_set, char *buf) 2975 { 2976 unsigned int i, sz = 256; 2977 int bytes_wrote = 0; 2978 char *loc = (char *)buf; 2979 u32 __iomem *reg = (u32 __iomem *)reg_set; 2980 2981 for (i = 0; i < sz / sizeof(u32); i++) { 2982 bytes_wrote += snprintf(loc + bytes_wrote, PAGE_SIZE, 2983 "%08x: %08x\n", (i * 4), 2984 readl(®[i])); 2985 } 2986 return bytes_wrote; 2987 } 2988 2989 /** 2990 * megasas_reset_bus_host - Bus & host reset handler entry point 2991 */ 2992 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 2993 { 2994 int ret; 2995 struct megasas_instance *instance; 2996 2997 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2998 2999 scmd_printk(KERN_INFO, scmd, 3000 "OCR is requested due to IO timeout!!\n"); 3001 3002 scmd_printk(KERN_INFO, scmd, 3003 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 3004 scmd->device->host->shost_state, 3005 scsi_host_busy(scmd->device->host), 3006 atomic_read(&instance->fw_outstanding)); 3007 /* 3008 * First wait for all commands to complete 3009 */ 3010 if (instance->adapter_type == MFI_SERIES) { 3011 ret = megasas_generic_reset(scmd); 3012 } else { 3013 megasas_dump_fusion_io(scmd); 3014 ret = megasas_reset_fusion(scmd->device->host, 3015 SCSIIO_TIMEOUT_OCR); 3016 } 3017 3018 return ret; 3019 } 3020 3021 /** 3022 * megasas_task_abort - Issues task abort request to firmware 3023 * (supported only for fusion adapters) 3024 * @scmd: SCSI command pointer 3025 */ 3026 static int megasas_task_abort(struct scsi_cmnd *scmd) 3027 { 3028 int ret; 3029 struct megasas_instance *instance; 3030 3031 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3032 3033 if (instance->adapter_type != MFI_SERIES) 3034 ret = megasas_task_abort_fusion(scmd); 3035 else { 3036 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 3037 ret = FAILED; 3038 } 3039 3040 return ret; 3041 } 3042 3043 /** 3044 * megasas_reset_target: Issues target reset request to firmware 3045 * (supported only for fusion adapters) 3046 * @scmd: SCSI command pointer 3047 */ 3048 static int megasas_reset_target(struct scsi_cmnd *scmd) 3049 { 3050 int ret; 3051 struct megasas_instance *instance; 3052 3053 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3054 3055 if (instance->adapter_type != MFI_SERIES) 3056 ret = megasas_reset_target_fusion(scmd); 3057 else { 3058 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 3059 ret = FAILED; 3060 } 3061 3062 return ret; 3063 } 3064 3065 /** 3066 * megasas_bios_param - Returns disk geometry for a disk 3067 * @sdev: device handle 3068 * @bdev: block device 3069 * @capacity: drive capacity 3070 * @geom: geometry parameters 3071 */ 3072 static int 3073 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, 3074 sector_t capacity, int geom[]) 3075 { 3076 int heads; 3077 int sectors; 3078 sector_t cylinders; 3079 unsigned long tmp; 3080 3081 /* Default heads (64) & sectors (32) */ 3082 heads = 64; 3083 sectors = 32; 3084 3085 tmp = heads * sectors; 3086 cylinders = capacity; 3087 3088 sector_div(cylinders, tmp); 3089 3090 /* 3091 * Handle extended translation size for logical drives > 1Gb 3092 */ 3093 3094 if (capacity >= 0x200000) { 3095 heads = 255; 3096 sectors = 63; 3097 tmp = heads*sectors; 3098 cylinders = capacity; 3099 sector_div(cylinders, tmp); 3100 } 3101 3102 geom[0] = heads; 3103 geom[1] = sectors; 3104 geom[2] = cylinders; 3105 3106 return 0; 3107 } 3108 3109 static void megasas_aen_polling(struct work_struct *work); 3110 3111 /** 3112 * megasas_service_aen - Processes an event notification 3113 * @instance: Adapter soft state 3114 * @cmd: AEN command completed by the ISR 3115 * 3116 * For AEN, driver sends a command down to FW that is held by the FW till an 3117 * event occurs. When an event of interest occurs, FW completes the command 3118 * that it was previously holding. 3119 * 3120 * This routines sends SIGIO signal to processes that have registered with the 3121 * driver for AEN. 3122 */ 3123 static void 3124 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 3125 { 3126 unsigned long flags; 3127 3128 /* 3129 * Don't signal app if it is just an aborted previously registered aen 3130 */ 3131 if ((!cmd->abort_aen) && (instance->unload == 0)) { 3132 spin_lock_irqsave(&poll_aen_lock, flags); 3133 megasas_poll_wait_aen = 1; 3134 spin_unlock_irqrestore(&poll_aen_lock, flags); 3135 wake_up(&megasas_poll_wait); 3136 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 3137 } 3138 else 3139 cmd->abort_aen = 0; 3140 3141 instance->aen_cmd = NULL; 3142 3143 megasas_return_cmd(instance, cmd); 3144 3145 if ((instance->unload == 0) && 3146 ((instance->issuepend_done == 1))) { 3147 struct megasas_aen_event *ev; 3148 3149 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3150 if (!ev) { 3151 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 3152 } else { 3153 ev->instance = instance; 3154 instance->ev = ev; 3155 INIT_DELAYED_WORK(&ev->hotplug_work, 3156 megasas_aen_polling); 3157 schedule_delayed_work(&ev->hotplug_work, 0); 3158 } 3159 } 3160 } 3161 3162 static ssize_t 3163 fw_crash_buffer_store(struct device *cdev, 3164 struct device_attribute *attr, const char *buf, size_t count) 3165 { 3166 struct Scsi_Host *shost = class_to_shost(cdev); 3167 struct megasas_instance *instance = 3168 (struct megasas_instance *) shost->hostdata; 3169 int val = 0; 3170 unsigned long flags; 3171 3172 if (kstrtoint(buf, 0, &val) != 0) 3173 return -EINVAL; 3174 3175 spin_lock_irqsave(&instance->crashdump_lock, flags); 3176 instance->fw_crash_buffer_offset = val; 3177 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3178 return strlen(buf); 3179 } 3180 3181 static ssize_t 3182 fw_crash_buffer_show(struct device *cdev, 3183 struct device_attribute *attr, char *buf) 3184 { 3185 struct Scsi_Host *shost = class_to_shost(cdev); 3186 struct megasas_instance *instance = 3187 (struct megasas_instance *) shost->hostdata; 3188 u32 size; 3189 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 3190 unsigned long chunk_left_bytes; 3191 unsigned long src_addr; 3192 unsigned long flags; 3193 u32 buff_offset; 3194 3195 spin_lock_irqsave(&instance->crashdump_lock, flags); 3196 buff_offset = instance->fw_crash_buffer_offset; 3197 if (!instance->crash_dump_buf && 3198 !((instance->fw_crash_state == AVAILABLE) || 3199 (instance->fw_crash_state == COPYING))) { 3200 dev_err(&instance->pdev->dev, 3201 "Firmware crash dump is not available\n"); 3202 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3203 return -EINVAL; 3204 } 3205 3206 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 3207 dev_err(&instance->pdev->dev, 3208 "Firmware crash dump offset is out of range\n"); 3209 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3210 return 0; 3211 } 3212 3213 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 3214 chunk_left_bytes = dmachunk - (buff_offset % dmachunk); 3215 size = (size > chunk_left_bytes) ? chunk_left_bytes : size; 3216 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3217 3218 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 3219 (buff_offset % dmachunk); 3220 memcpy(buf, (void *)src_addr, size); 3221 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3222 3223 return size; 3224 } 3225 3226 static ssize_t 3227 fw_crash_buffer_size_show(struct device *cdev, 3228 struct device_attribute *attr, char *buf) 3229 { 3230 struct Scsi_Host *shost = class_to_shost(cdev); 3231 struct megasas_instance *instance = 3232 (struct megasas_instance *) shost->hostdata; 3233 3234 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3235 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3236 } 3237 3238 static ssize_t 3239 fw_crash_state_store(struct device *cdev, 3240 struct device_attribute *attr, const char *buf, size_t count) 3241 { 3242 struct Scsi_Host *shost = class_to_shost(cdev); 3243 struct megasas_instance *instance = 3244 (struct megasas_instance *) shost->hostdata; 3245 int val = 0; 3246 unsigned long flags; 3247 3248 if (kstrtoint(buf, 0, &val) != 0) 3249 return -EINVAL; 3250 3251 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3252 dev_err(&instance->pdev->dev, "application updates invalid " 3253 "firmware crash state\n"); 3254 return -EINVAL; 3255 } 3256 3257 instance->fw_crash_state = val; 3258 3259 if ((val == COPIED) || (val == COPY_ERROR)) { 3260 spin_lock_irqsave(&instance->crashdump_lock, flags); 3261 megasas_free_host_crash_buffer(instance); 3262 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3263 if (val == COPY_ERROR) 3264 dev_info(&instance->pdev->dev, "application failed to " 3265 "copy Firmware crash dump\n"); 3266 else 3267 dev_info(&instance->pdev->dev, "Firmware crash dump " 3268 "copied successfully\n"); 3269 } 3270 return strlen(buf); 3271 } 3272 3273 static ssize_t 3274 fw_crash_state_show(struct device *cdev, 3275 struct device_attribute *attr, char *buf) 3276 { 3277 struct Scsi_Host *shost = class_to_shost(cdev); 3278 struct megasas_instance *instance = 3279 (struct megasas_instance *) shost->hostdata; 3280 3281 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3282 } 3283 3284 static ssize_t 3285 page_size_show(struct device *cdev, 3286 struct device_attribute *attr, char *buf) 3287 { 3288 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3289 } 3290 3291 static ssize_t 3292 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3293 char *buf) 3294 { 3295 struct Scsi_Host *shost = class_to_shost(cdev); 3296 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3297 3298 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3299 } 3300 3301 static ssize_t 3302 fw_cmds_outstanding_show(struct device *cdev, 3303 struct device_attribute *attr, char *buf) 3304 { 3305 struct Scsi_Host *shost = class_to_shost(cdev); 3306 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3307 3308 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); 3309 } 3310 3311 static ssize_t 3312 enable_sdev_max_qd_show(struct device *cdev, 3313 struct device_attribute *attr, char *buf) 3314 { 3315 struct Scsi_Host *shost = class_to_shost(cdev); 3316 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3317 3318 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); 3319 } 3320 3321 static ssize_t 3322 enable_sdev_max_qd_store(struct device *cdev, 3323 struct device_attribute *attr, const char *buf, size_t count) 3324 { 3325 struct Scsi_Host *shost = class_to_shost(cdev); 3326 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3327 u32 val = 0; 3328 bool is_target_prop; 3329 int ret_target_prop = DCMD_FAILED; 3330 struct scsi_device *sdev; 3331 3332 if (kstrtou32(buf, 0, &val) != 0) { 3333 pr_err("megasas: could not set enable_sdev_max_qd\n"); 3334 return -EINVAL; 3335 } 3336 3337 mutex_lock(&instance->reset_mutex); 3338 if (val) 3339 instance->enable_sdev_max_qd = true; 3340 else 3341 instance->enable_sdev_max_qd = false; 3342 3343 shost_for_each_device(sdev, shost) { 3344 ret_target_prop = megasas_get_target_prop(instance, sdev); 3345 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 3346 megasas_set_fw_assisted_qd(sdev, is_target_prop); 3347 } 3348 mutex_unlock(&instance->reset_mutex); 3349 3350 return strlen(buf); 3351 } 3352 3353 static ssize_t 3354 dump_system_regs_show(struct device *cdev, 3355 struct device_attribute *attr, char *buf) 3356 { 3357 struct Scsi_Host *shost = class_to_shost(cdev); 3358 struct megasas_instance *instance = 3359 (struct megasas_instance *)shost->hostdata; 3360 3361 return megasas_dump_sys_regs(instance->reg_set, buf); 3362 } 3363 3364 static ssize_t 3365 raid_map_id_show(struct device *cdev, struct device_attribute *attr, 3366 char *buf) 3367 { 3368 struct Scsi_Host *shost = class_to_shost(cdev); 3369 struct megasas_instance *instance = 3370 (struct megasas_instance *)shost->hostdata; 3371 3372 return snprintf(buf, PAGE_SIZE, "%ld\n", 3373 (unsigned long)instance->map_id); 3374 } 3375 3376 static DEVICE_ATTR_RW(fw_crash_buffer); 3377 static DEVICE_ATTR_RO(fw_crash_buffer_size); 3378 static DEVICE_ATTR_RW(fw_crash_state); 3379 static DEVICE_ATTR_RO(page_size); 3380 static DEVICE_ATTR_RO(ldio_outstanding); 3381 static DEVICE_ATTR_RO(fw_cmds_outstanding); 3382 static DEVICE_ATTR_RW(enable_sdev_max_qd); 3383 static DEVICE_ATTR_RO(dump_system_regs); 3384 static DEVICE_ATTR_RO(raid_map_id); 3385 3386 static struct device_attribute *megaraid_host_attrs[] = { 3387 &dev_attr_fw_crash_buffer_size, 3388 &dev_attr_fw_crash_buffer, 3389 &dev_attr_fw_crash_state, 3390 &dev_attr_page_size, 3391 &dev_attr_ldio_outstanding, 3392 &dev_attr_fw_cmds_outstanding, 3393 &dev_attr_enable_sdev_max_qd, 3394 &dev_attr_dump_system_regs, 3395 &dev_attr_raid_map_id, 3396 NULL, 3397 }; 3398 3399 /* 3400 * Scsi host template for megaraid_sas driver 3401 */ 3402 static struct scsi_host_template megasas_template = { 3403 3404 .module = THIS_MODULE, 3405 .name = "Avago SAS based MegaRAID driver", 3406 .proc_name = "megaraid_sas", 3407 .slave_configure = megasas_slave_configure, 3408 .slave_alloc = megasas_slave_alloc, 3409 .slave_destroy = megasas_slave_destroy, 3410 .queuecommand = megasas_queue_command, 3411 .eh_target_reset_handler = megasas_reset_target, 3412 .eh_abort_handler = megasas_task_abort, 3413 .eh_host_reset_handler = megasas_reset_bus_host, 3414 .eh_timed_out = megasas_reset_timer, 3415 .shost_attrs = megaraid_host_attrs, 3416 .bios_param = megasas_bios_param, 3417 .change_queue_depth = scsi_change_queue_depth, 3418 .max_segment_size = 0xffffffff, 3419 .no_write_same = 1, 3420 }; 3421 3422 /** 3423 * megasas_complete_int_cmd - Completes an internal command 3424 * @instance: Adapter soft state 3425 * @cmd: Command to be completed 3426 * 3427 * The megasas_issue_blocked_cmd() function waits for a command to complete 3428 * after it issues a command. This function wakes up that waiting routine by 3429 * calling wake_up() on the wait queue. 3430 */ 3431 static void 3432 megasas_complete_int_cmd(struct megasas_instance *instance, 3433 struct megasas_cmd *cmd) 3434 { 3435 cmd->cmd_status_drv = cmd->frame->io.cmd_status; 3436 wake_up(&instance->int_cmd_wait_q); 3437 } 3438 3439 /** 3440 * megasas_complete_abort - Completes aborting a command 3441 * @instance: Adapter soft state 3442 * @cmd: Cmd that was issued to abort another cmd 3443 * 3444 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3445 * after it issues an abort on a previously issued command. This function 3446 * wakes up all functions waiting on the same wait queue. 3447 */ 3448 static void 3449 megasas_complete_abort(struct megasas_instance *instance, 3450 struct megasas_cmd *cmd) 3451 { 3452 if (cmd->sync_cmd) { 3453 cmd->sync_cmd = 0; 3454 cmd->cmd_status_drv = 0; 3455 wake_up(&instance->abort_cmd_wait_q); 3456 } 3457 } 3458 3459 /** 3460 * megasas_complete_cmd - Completes a command 3461 * @instance: Adapter soft state 3462 * @cmd: Command to be completed 3463 * @alt_status: If non-zero, use this value as status to 3464 * SCSI mid-layer instead of the value returned 3465 * by the FW. This should be used if caller wants 3466 * an alternate status (as in the case of aborted 3467 * commands) 3468 */ 3469 void 3470 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3471 u8 alt_status) 3472 { 3473 int exception = 0; 3474 struct megasas_header *hdr = &cmd->frame->hdr; 3475 unsigned long flags; 3476 struct fusion_context *fusion = instance->ctrl_context; 3477 u32 opcode, status; 3478 3479 /* flag for the retry reset */ 3480 cmd->retry_for_fw_reset = 0; 3481 3482 if (cmd->scmd) 3483 cmd->scmd->SCp.ptr = NULL; 3484 3485 switch (hdr->cmd) { 3486 case MFI_CMD_INVALID: 3487 /* Some older 1068 controller FW may keep a pended 3488 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3489 when booting the kdump kernel. Ignore this command to 3490 prevent a kernel panic on shutdown of the kdump kernel. */ 3491 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3492 "completed\n"); 3493 dev_warn(&instance->pdev->dev, "If you have a controller " 3494 "other than PERC5, please upgrade your firmware\n"); 3495 break; 3496 case MFI_CMD_PD_SCSI_IO: 3497 case MFI_CMD_LD_SCSI_IO: 3498 3499 /* 3500 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3501 * issued either through an IO path or an IOCTL path. If it 3502 * was via IOCTL, we will send it to internal completion. 3503 */ 3504 if (cmd->sync_cmd) { 3505 cmd->sync_cmd = 0; 3506 megasas_complete_int_cmd(instance, cmd); 3507 break; 3508 } 3509 /* fall through */ 3510 3511 case MFI_CMD_LD_READ: 3512 case MFI_CMD_LD_WRITE: 3513 3514 if (alt_status) { 3515 cmd->scmd->result = alt_status << 16; 3516 exception = 1; 3517 } 3518 3519 if (exception) { 3520 3521 atomic_dec(&instance->fw_outstanding); 3522 3523 scsi_dma_unmap(cmd->scmd); 3524 cmd->scmd->scsi_done(cmd->scmd); 3525 megasas_return_cmd(instance, cmd); 3526 3527 break; 3528 } 3529 3530 switch (hdr->cmd_status) { 3531 3532 case MFI_STAT_OK: 3533 cmd->scmd->result = DID_OK << 16; 3534 break; 3535 3536 case MFI_STAT_SCSI_IO_FAILED: 3537 case MFI_STAT_LD_INIT_IN_PROGRESS: 3538 cmd->scmd->result = 3539 (DID_ERROR << 16) | hdr->scsi_status; 3540 break; 3541 3542 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3543 3544 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3545 3546 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3547 memset(cmd->scmd->sense_buffer, 0, 3548 SCSI_SENSE_BUFFERSIZE); 3549 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3550 hdr->sense_len); 3551 3552 cmd->scmd->result |= DRIVER_SENSE << 24; 3553 } 3554 3555 break; 3556 3557 case MFI_STAT_LD_OFFLINE: 3558 case MFI_STAT_DEVICE_NOT_FOUND: 3559 cmd->scmd->result = DID_BAD_TARGET << 16; 3560 break; 3561 3562 default: 3563 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3564 hdr->cmd_status); 3565 cmd->scmd->result = DID_ERROR << 16; 3566 break; 3567 } 3568 3569 atomic_dec(&instance->fw_outstanding); 3570 3571 scsi_dma_unmap(cmd->scmd); 3572 cmd->scmd->scsi_done(cmd->scmd); 3573 megasas_return_cmd(instance, cmd); 3574 3575 break; 3576 3577 case MFI_CMD_SMP: 3578 case MFI_CMD_STP: 3579 case MFI_CMD_NVME: 3580 case MFI_CMD_TOOLBOX: 3581 megasas_complete_int_cmd(instance, cmd); 3582 break; 3583 3584 case MFI_CMD_DCMD: 3585 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3586 /* Check for LD map update */ 3587 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3588 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3589 fusion->fast_path_io = 0; 3590 spin_lock_irqsave(instance->host->host_lock, flags); 3591 status = cmd->frame->hdr.cmd_status; 3592 instance->map_update_cmd = NULL; 3593 if (status != MFI_STAT_OK) { 3594 if (status != MFI_STAT_NOT_FOUND) 3595 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3596 cmd->frame->hdr.cmd_status); 3597 else { 3598 megasas_return_cmd(instance, cmd); 3599 spin_unlock_irqrestore( 3600 instance->host->host_lock, 3601 flags); 3602 break; 3603 } 3604 } 3605 3606 megasas_return_cmd(instance, cmd); 3607 3608 /* 3609 * Set fast path IO to ZERO. 3610 * Validate Map will set proper value. 3611 * Meanwhile all IOs will go as LD IO. 3612 */ 3613 if (status == MFI_STAT_OK && 3614 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { 3615 instance->map_id++; 3616 fusion->fast_path_io = 1; 3617 } else { 3618 fusion->fast_path_io = 0; 3619 } 3620 3621 megasas_sync_map_info(instance); 3622 spin_unlock_irqrestore(instance->host->host_lock, 3623 flags); 3624 break; 3625 } 3626 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3627 opcode == MR_DCMD_CTRL_EVENT_GET) { 3628 spin_lock_irqsave(&poll_aen_lock, flags); 3629 megasas_poll_wait_aen = 0; 3630 spin_unlock_irqrestore(&poll_aen_lock, flags); 3631 } 3632 3633 /* FW has an updated PD sequence */ 3634 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3635 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3636 3637 spin_lock_irqsave(instance->host->host_lock, flags); 3638 status = cmd->frame->hdr.cmd_status; 3639 instance->jbod_seq_cmd = NULL; 3640 megasas_return_cmd(instance, cmd); 3641 3642 if (status == MFI_STAT_OK) { 3643 instance->pd_seq_map_id++; 3644 /* Re-register a pd sync seq num cmd */ 3645 if (megasas_sync_pd_seq_num(instance, true)) 3646 instance->use_seqnum_jbod_fp = false; 3647 } else 3648 instance->use_seqnum_jbod_fp = false; 3649 3650 spin_unlock_irqrestore(instance->host->host_lock, flags); 3651 break; 3652 } 3653 3654 /* 3655 * See if got an event notification 3656 */ 3657 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3658 megasas_service_aen(instance, cmd); 3659 else 3660 megasas_complete_int_cmd(instance, cmd); 3661 3662 break; 3663 3664 case MFI_CMD_ABORT: 3665 /* 3666 * Cmd issued to abort another cmd returned 3667 */ 3668 megasas_complete_abort(instance, cmd); 3669 break; 3670 3671 default: 3672 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3673 hdr->cmd); 3674 megasas_complete_int_cmd(instance, cmd); 3675 break; 3676 } 3677 } 3678 3679 /** 3680 * megasas_issue_pending_cmds_again - issue all pending cmds 3681 * in FW again because of the fw reset 3682 * @instance: Adapter soft state 3683 */ 3684 static inline void 3685 megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3686 { 3687 struct megasas_cmd *cmd; 3688 struct list_head clist_local; 3689 union megasas_evt_class_locale class_locale; 3690 unsigned long flags; 3691 u32 seq_num; 3692 3693 INIT_LIST_HEAD(&clist_local); 3694 spin_lock_irqsave(&instance->hba_lock, flags); 3695 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3696 spin_unlock_irqrestore(&instance->hba_lock, flags); 3697 3698 while (!list_empty(&clist_local)) { 3699 cmd = list_entry((&clist_local)->next, 3700 struct megasas_cmd, list); 3701 list_del_init(&cmd->list); 3702 3703 if (cmd->sync_cmd || cmd->scmd) { 3704 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3705 "detected to be pending while HBA reset\n", 3706 cmd, cmd->scmd, cmd->sync_cmd); 3707 3708 cmd->retry_for_fw_reset++; 3709 3710 if (cmd->retry_for_fw_reset == 3) { 3711 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3712 "was tried multiple times during reset." 3713 "Shutting down the HBA\n", 3714 cmd, cmd->scmd, cmd->sync_cmd); 3715 instance->instancet->disable_intr(instance); 3716 atomic_set(&instance->fw_reset_no_pci_access, 1); 3717 megaraid_sas_kill_hba(instance); 3718 return; 3719 } 3720 } 3721 3722 if (cmd->sync_cmd == 1) { 3723 if (cmd->scmd) { 3724 dev_notice(&instance->pdev->dev, "unexpected" 3725 "cmd attached to internal command!\n"); 3726 } 3727 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3728 "on the internal reset queue," 3729 "issue it again.\n", cmd); 3730 cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; 3731 instance->instancet->fire_cmd(instance, 3732 cmd->frame_phys_addr, 3733 0, instance->reg_set); 3734 } else if (cmd->scmd) { 3735 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3736 "detected on the internal queue, issue again.\n", 3737 cmd, cmd->scmd->cmnd[0]); 3738 3739 atomic_inc(&instance->fw_outstanding); 3740 instance->instancet->fire_cmd(instance, 3741 cmd->frame_phys_addr, 3742 cmd->frame_count-1, instance->reg_set); 3743 } else { 3744 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3745 "internal reset defer list while re-issue!!\n", 3746 cmd); 3747 } 3748 } 3749 3750 if (instance->aen_cmd) { 3751 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3752 megasas_return_cmd(instance, instance->aen_cmd); 3753 3754 instance->aen_cmd = NULL; 3755 } 3756 3757 /* 3758 * Initiate AEN (Asynchronous Event Notification) 3759 */ 3760 seq_num = instance->last_seq_num; 3761 class_locale.members.reserved = 0; 3762 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3763 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3764 3765 megasas_register_aen(instance, seq_num, class_locale.word); 3766 } 3767 3768 /** 3769 * Move the internal reset pending commands to a deferred queue. 3770 * 3771 * We move the commands pending at internal reset time to a 3772 * pending queue. This queue would be flushed after successful 3773 * completion of the internal reset sequence. if the internal reset 3774 * did not complete in time, the kernel reset handler would flush 3775 * these commands. 3776 **/ 3777 static void 3778 megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3779 { 3780 struct megasas_cmd *cmd; 3781 int i; 3782 u16 max_cmd = instance->max_fw_cmds; 3783 u32 defer_index; 3784 unsigned long flags; 3785 3786 defer_index = 0; 3787 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3788 for (i = 0; i < max_cmd; i++) { 3789 cmd = instance->cmd_list[i]; 3790 if (cmd->sync_cmd == 1 || cmd->scmd) { 3791 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3792 "on the defer queue as internal\n", 3793 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3794 3795 if (!list_empty(&cmd->list)) { 3796 dev_notice(&instance->pdev->dev, "ERROR while" 3797 " moving this cmd:%p, %d %p, it was" 3798 "discovered on some list?\n", 3799 cmd, cmd->sync_cmd, cmd->scmd); 3800 3801 list_del_init(&cmd->list); 3802 } 3803 defer_index++; 3804 list_add_tail(&cmd->list, 3805 &instance->internal_reset_pending_q); 3806 } 3807 } 3808 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3809 } 3810 3811 3812 static void 3813 process_fw_state_change_wq(struct work_struct *work) 3814 { 3815 struct megasas_instance *instance = 3816 container_of(work, struct megasas_instance, work_init); 3817 u32 wait; 3818 unsigned long flags; 3819 3820 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3821 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3822 atomic_read(&instance->adprecovery)); 3823 return ; 3824 } 3825 3826 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3827 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3828 "state, restarting it...\n"); 3829 3830 instance->instancet->disable_intr(instance); 3831 atomic_set(&instance->fw_outstanding, 0); 3832 3833 atomic_set(&instance->fw_reset_no_pci_access, 1); 3834 instance->instancet->adp_reset(instance, instance->reg_set); 3835 atomic_set(&instance->fw_reset_no_pci_access, 0); 3836 3837 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3838 "initiating next stage...\n"); 3839 3840 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3841 "state 2 starting...\n"); 3842 3843 /* waiting for about 20 second before start the second init */ 3844 for (wait = 0; wait < 30; wait++) { 3845 msleep(1000); 3846 } 3847 3848 if (megasas_transition_to_ready(instance, 1)) { 3849 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3850 3851 atomic_set(&instance->fw_reset_no_pci_access, 1); 3852 megaraid_sas_kill_hba(instance); 3853 return ; 3854 } 3855 3856 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3857 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3858 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3859 ) { 3860 *instance->consumer = *instance->producer; 3861 } else { 3862 *instance->consumer = 0; 3863 *instance->producer = 0; 3864 } 3865 3866 megasas_issue_init_mfi(instance); 3867 3868 spin_lock_irqsave(&instance->hba_lock, flags); 3869 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 3870 spin_unlock_irqrestore(&instance->hba_lock, flags); 3871 instance->instancet->enable_intr(instance); 3872 3873 megasas_issue_pending_cmds_again(instance); 3874 instance->issuepend_done = 1; 3875 } 3876 } 3877 3878 /** 3879 * megasas_deplete_reply_queue - Processes all completed commands 3880 * @instance: Adapter soft state 3881 * @alt_status: Alternate status to be returned to 3882 * SCSI mid-layer instead of the status 3883 * returned by the FW 3884 * Note: this must be called with hba lock held 3885 */ 3886 static int 3887 megasas_deplete_reply_queue(struct megasas_instance *instance, 3888 u8 alt_status) 3889 { 3890 u32 mfiStatus; 3891 u32 fw_state; 3892 3893 if ((mfiStatus = instance->instancet->check_reset(instance, 3894 instance->reg_set)) == 1) { 3895 return IRQ_HANDLED; 3896 } 3897 3898 mfiStatus = instance->instancet->clear_intr(instance); 3899 if (mfiStatus == 0) { 3900 /* Hardware may not set outbound_intr_status in MSI-X mode */ 3901 if (!instance->msix_vectors) 3902 return IRQ_NONE; 3903 } 3904 3905 instance->mfiStatus = mfiStatus; 3906 3907 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 3908 fw_state = instance->instancet->read_fw_status_reg( 3909 instance) & MFI_STATE_MASK; 3910 3911 if (fw_state != MFI_STATE_FAULT) { 3912 dev_notice(&instance->pdev->dev, "fw state:%x\n", 3913 fw_state); 3914 } 3915 3916 if ((fw_state == MFI_STATE_FAULT) && 3917 (instance->disableOnlineCtrlReset == 0)) { 3918 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 3919 3920 if ((instance->pdev->device == 3921 PCI_DEVICE_ID_LSI_SAS1064R) || 3922 (instance->pdev->device == 3923 PCI_DEVICE_ID_DELL_PERC5) || 3924 (instance->pdev->device == 3925 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 3926 3927 *instance->consumer = 3928 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 3929 } 3930 3931 3932 instance->instancet->disable_intr(instance); 3933 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 3934 instance->issuepend_done = 0; 3935 3936 atomic_set(&instance->fw_outstanding, 0); 3937 megasas_internal_reset_defer_cmds(instance); 3938 3939 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 3940 fw_state, atomic_read(&instance->adprecovery)); 3941 3942 schedule_work(&instance->work_init); 3943 return IRQ_HANDLED; 3944 3945 } else { 3946 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 3947 fw_state, instance->disableOnlineCtrlReset); 3948 } 3949 } 3950 3951 tasklet_schedule(&instance->isr_tasklet); 3952 return IRQ_HANDLED; 3953 } 3954 /** 3955 * megasas_isr - isr entry point 3956 */ 3957 static irqreturn_t megasas_isr(int irq, void *devp) 3958 { 3959 struct megasas_irq_context *irq_context = devp; 3960 struct megasas_instance *instance = irq_context->instance; 3961 unsigned long flags; 3962 irqreturn_t rc; 3963 3964 if (atomic_read(&instance->fw_reset_no_pci_access)) 3965 return IRQ_HANDLED; 3966 3967 spin_lock_irqsave(&instance->hba_lock, flags); 3968 rc = megasas_deplete_reply_queue(instance, DID_OK); 3969 spin_unlock_irqrestore(&instance->hba_lock, flags); 3970 3971 return rc; 3972 } 3973 3974 /** 3975 * megasas_transition_to_ready - Move the FW to READY state 3976 * @instance: Adapter soft state 3977 * 3978 * During the initialization, FW passes can potentially be in any one of 3979 * several possible states. If the FW in operational, waiting-for-handshake 3980 * states, driver must take steps to bring it to ready state. Otherwise, it 3981 * has to wait for the ready state. 3982 */ 3983 int 3984 megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 3985 { 3986 int i; 3987 u8 max_wait; 3988 u32 fw_state; 3989 u32 abs_state, curr_abs_state; 3990 3991 abs_state = instance->instancet->read_fw_status_reg(instance); 3992 fw_state = abs_state & MFI_STATE_MASK; 3993 3994 if (fw_state != MFI_STATE_READY) 3995 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 3996 " state\n"); 3997 3998 while (fw_state != MFI_STATE_READY) { 3999 4000 switch (fw_state) { 4001 4002 case MFI_STATE_FAULT: 4003 dev_printk(KERN_ERR, &instance->pdev->dev, 4004 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", 4005 abs_state & MFI_STATE_FAULT_CODE, 4006 abs_state & MFI_STATE_FAULT_SUBCODE, __func__); 4007 if (ocr) { 4008 max_wait = MEGASAS_RESET_WAIT_TIME; 4009 break; 4010 } else { 4011 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4012 megasas_dump_reg_set(instance->reg_set); 4013 return -ENODEV; 4014 } 4015 4016 case MFI_STATE_WAIT_HANDSHAKE: 4017 /* 4018 * Set the CLR bit in inbound doorbell 4019 */ 4020 if ((instance->pdev->device == 4021 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4022 (instance->pdev->device == 4023 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4024 (instance->adapter_type != MFI_SERIES)) 4025 writel( 4026 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4027 &instance->reg_set->doorbell); 4028 else 4029 writel( 4030 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4031 &instance->reg_set->inbound_doorbell); 4032 4033 max_wait = MEGASAS_RESET_WAIT_TIME; 4034 break; 4035 4036 case MFI_STATE_BOOT_MESSAGE_PENDING: 4037 if ((instance->pdev->device == 4038 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4039 (instance->pdev->device == 4040 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4041 (instance->adapter_type != MFI_SERIES)) 4042 writel(MFI_INIT_HOTPLUG, 4043 &instance->reg_set->doorbell); 4044 else 4045 writel(MFI_INIT_HOTPLUG, 4046 &instance->reg_set->inbound_doorbell); 4047 4048 max_wait = MEGASAS_RESET_WAIT_TIME; 4049 break; 4050 4051 case MFI_STATE_OPERATIONAL: 4052 /* 4053 * Bring it to READY state; assuming max wait 10 secs 4054 */ 4055 instance->instancet->disable_intr(instance); 4056 if ((instance->pdev->device == 4057 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4058 (instance->pdev->device == 4059 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4060 (instance->adapter_type != MFI_SERIES)) { 4061 writel(MFI_RESET_FLAGS, 4062 &instance->reg_set->doorbell); 4063 4064 if (instance->adapter_type != MFI_SERIES) { 4065 for (i = 0; i < (10 * 1000); i += 20) { 4066 if (megasas_readl( 4067 instance, 4068 &instance-> 4069 reg_set-> 4070 doorbell) & 1) 4071 msleep(20); 4072 else 4073 break; 4074 } 4075 } 4076 } else 4077 writel(MFI_RESET_FLAGS, 4078 &instance->reg_set->inbound_doorbell); 4079 4080 max_wait = MEGASAS_RESET_WAIT_TIME; 4081 break; 4082 4083 case MFI_STATE_UNDEFINED: 4084 /* 4085 * This state should not last for more than 2 seconds 4086 */ 4087 max_wait = MEGASAS_RESET_WAIT_TIME; 4088 break; 4089 4090 case MFI_STATE_BB_INIT: 4091 max_wait = MEGASAS_RESET_WAIT_TIME; 4092 break; 4093 4094 case MFI_STATE_FW_INIT: 4095 max_wait = MEGASAS_RESET_WAIT_TIME; 4096 break; 4097 4098 case MFI_STATE_FW_INIT_2: 4099 max_wait = MEGASAS_RESET_WAIT_TIME; 4100 break; 4101 4102 case MFI_STATE_DEVICE_SCAN: 4103 max_wait = MEGASAS_RESET_WAIT_TIME; 4104 break; 4105 4106 case MFI_STATE_FLUSH_CACHE: 4107 max_wait = MEGASAS_RESET_WAIT_TIME; 4108 break; 4109 4110 default: 4111 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 4112 fw_state); 4113 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4114 megasas_dump_reg_set(instance->reg_set); 4115 return -ENODEV; 4116 } 4117 4118 /* 4119 * The cur_state should not last for more than max_wait secs 4120 */ 4121 for (i = 0; i < max_wait * 50; i++) { 4122 curr_abs_state = instance->instancet-> 4123 read_fw_status_reg(instance); 4124 4125 if (abs_state == curr_abs_state) { 4126 msleep(20); 4127 } else 4128 break; 4129 } 4130 4131 /* 4132 * Return error if fw_state hasn't changed after max_wait 4133 */ 4134 if (curr_abs_state == abs_state) { 4135 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 4136 "in %d secs\n", fw_state, max_wait); 4137 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4138 megasas_dump_reg_set(instance->reg_set); 4139 return -ENODEV; 4140 } 4141 4142 abs_state = curr_abs_state; 4143 fw_state = curr_abs_state & MFI_STATE_MASK; 4144 } 4145 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 4146 4147 return 0; 4148 } 4149 4150 /** 4151 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 4152 * @instance: Adapter soft state 4153 */ 4154 static void megasas_teardown_frame_pool(struct megasas_instance *instance) 4155 { 4156 int i; 4157 u16 max_cmd = instance->max_mfi_cmds; 4158 struct megasas_cmd *cmd; 4159 4160 if (!instance->frame_dma_pool) 4161 return; 4162 4163 /* 4164 * Return all frames to pool 4165 */ 4166 for (i = 0; i < max_cmd; i++) { 4167 4168 cmd = instance->cmd_list[i]; 4169 4170 if (cmd->frame) 4171 dma_pool_free(instance->frame_dma_pool, cmd->frame, 4172 cmd->frame_phys_addr); 4173 4174 if (cmd->sense) 4175 dma_pool_free(instance->sense_dma_pool, cmd->sense, 4176 cmd->sense_phys_addr); 4177 } 4178 4179 /* 4180 * Now destroy the pool itself 4181 */ 4182 dma_pool_destroy(instance->frame_dma_pool); 4183 dma_pool_destroy(instance->sense_dma_pool); 4184 4185 instance->frame_dma_pool = NULL; 4186 instance->sense_dma_pool = NULL; 4187 } 4188 4189 /** 4190 * megasas_create_frame_pool - Creates DMA pool for cmd frames 4191 * @instance: Adapter soft state 4192 * 4193 * Each command packet has an embedded DMA memory buffer that is used for 4194 * filling MFI frame and the SG list that immediately follows the frame. This 4195 * function creates those DMA memory buffers for each command packet by using 4196 * PCI pool facility. 4197 */ 4198 static int megasas_create_frame_pool(struct megasas_instance *instance) 4199 { 4200 int i; 4201 u16 max_cmd; 4202 u32 frame_count; 4203 struct megasas_cmd *cmd; 4204 4205 max_cmd = instance->max_mfi_cmds; 4206 4207 /* 4208 * For MFI controllers. 4209 * max_num_sge = 60 4210 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 4211 * Total 960 byte (15 MFI frame of 64 byte) 4212 * 4213 * Fusion adapter require only 3 extra frame. 4214 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 4215 * max_sge_sz = 12 byte (sizeof megasas_sge64) 4216 * Total 192 byte (3 MFI frame of 64 byte) 4217 */ 4218 frame_count = (instance->adapter_type == MFI_SERIES) ? 4219 (15 + 1) : (3 + 1); 4220 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 4221 /* 4222 * Use DMA pool facility provided by PCI layer 4223 */ 4224 instance->frame_dma_pool = dma_pool_create("megasas frame pool", 4225 &instance->pdev->dev, 4226 instance->mfi_frame_size, 256, 0); 4227 4228 if (!instance->frame_dma_pool) { 4229 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 4230 return -ENOMEM; 4231 } 4232 4233 instance->sense_dma_pool = dma_pool_create("megasas sense pool", 4234 &instance->pdev->dev, 128, 4235 4, 0); 4236 4237 if (!instance->sense_dma_pool) { 4238 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 4239 4240 dma_pool_destroy(instance->frame_dma_pool); 4241 instance->frame_dma_pool = NULL; 4242 4243 return -ENOMEM; 4244 } 4245 4246 /* 4247 * Allocate and attach a frame to each of the commands in cmd_list. 4248 * By making cmd->index as the context instead of the &cmd, we can 4249 * always use 32bit context regardless of the architecture 4250 */ 4251 for (i = 0; i < max_cmd; i++) { 4252 4253 cmd = instance->cmd_list[i]; 4254 4255 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, 4256 GFP_KERNEL, &cmd->frame_phys_addr); 4257 4258 cmd->sense = dma_pool_alloc(instance->sense_dma_pool, 4259 GFP_KERNEL, &cmd->sense_phys_addr); 4260 4261 /* 4262 * megasas_teardown_frame_pool() takes care of freeing 4263 * whatever has been allocated 4264 */ 4265 if (!cmd->frame || !cmd->sense) { 4266 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); 4267 megasas_teardown_frame_pool(instance); 4268 return -ENOMEM; 4269 } 4270 4271 cmd->frame->io.context = cpu_to_le32(cmd->index); 4272 cmd->frame->io.pad_0 = 0; 4273 if ((instance->adapter_type == MFI_SERIES) && reset_devices) 4274 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 4275 } 4276 4277 return 0; 4278 } 4279 4280 /** 4281 * megasas_free_cmds - Free all the cmds in the free cmd pool 4282 * @instance: Adapter soft state 4283 */ 4284 void megasas_free_cmds(struct megasas_instance *instance) 4285 { 4286 int i; 4287 4288 /* First free the MFI frame pool */ 4289 megasas_teardown_frame_pool(instance); 4290 4291 /* Free all the commands in the cmd_list */ 4292 for (i = 0; i < instance->max_mfi_cmds; i++) 4293 4294 kfree(instance->cmd_list[i]); 4295 4296 /* Free the cmd_list buffer itself */ 4297 kfree(instance->cmd_list); 4298 instance->cmd_list = NULL; 4299 4300 INIT_LIST_HEAD(&instance->cmd_pool); 4301 } 4302 4303 /** 4304 * megasas_alloc_cmds - Allocates the command packets 4305 * @instance: Adapter soft state 4306 * 4307 * Each command that is issued to the FW, whether IO commands from the OS or 4308 * internal commands like IOCTLs, are wrapped in local data structure called 4309 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4310 * the FW. 4311 * 4312 * Each frame has a 32-bit field called context (tag). This context is used 4313 * to get back the megasas_cmd from the frame when a frame gets completed in 4314 * the ISR. Typically the address of the megasas_cmd itself would be used as 4315 * the context. But we wanted to keep the differences between 32 and 64 bit 4316 * systems to the mininum. We always use 32 bit integers for the context. In 4317 * this driver, the 32 bit values are the indices into an array cmd_list. 4318 * This array is used only to look up the megasas_cmd given the context. The 4319 * free commands themselves are maintained in a linked list called cmd_pool. 4320 */ 4321 int megasas_alloc_cmds(struct megasas_instance *instance) 4322 { 4323 int i; 4324 int j; 4325 u16 max_cmd; 4326 struct megasas_cmd *cmd; 4327 4328 max_cmd = instance->max_mfi_cmds; 4329 4330 /* 4331 * instance->cmd_list is an array of struct megasas_cmd pointers. 4332 * Allocate the dynamic array first and then allocate individual 4333 * commands. 4334 */ 4335 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4336 4337 if (!instance->cmd_list) { 4338 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4339 return -ENOMEM; 4340 } 4341 4342 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); 4343 4344 for (i = 0; i < max_cmd; i++) { 4345 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4346 GFP_KERNEL); 4347 4348 if (!instance->cmd_list[i]) { 4349 4350 for (j = 0; j < i; j++) 4351 kfree(instance->cmd_list[j]); 4352 4353 kfree(instance->cmd_list); 4354 instance->cmd_list = NULL; 4355 4356 return -ENOMEM; 4357 } 4358 } 4359 4360 for (i = 0; i < max_cmd; i++) { 4361 cmd = instance->cmd_list[i]; 4362 memset(cmd, 0, sizeof(struct megasas_cmd)); 4363 cmd->index = i; 4364 cmd->scmd = NULL; 4365 cmd->instance = instance; 4366 4367 list_add_tail(&cmd->list, &instance->cmd_pool); 4368 } 4369 4370 /* 4371 * Create a frame pool and assign one frame to each cmd 4372 */ 4373 if (megasas_create_frame_pool(instance)) { 4374 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4375 megasas_free_cmds(instance); 4376 return -ENOMEM; 4377 } 4378 4379 return 0; 4380 } 4381 4382 /* 4383 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4384 * @instance: Adapter soft state 4385 * 4386 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4387 * or FW is not under OCR. 4388 */ 4389 inline int 4390 dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4391 4392 if (instance->adapter_type == MFI_SERIES) 4393 return KILL_ADAPTER; 4394 else if (instance->unload || 4395 test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) 4396 return IGNORE_TIMEOUT; 4397 else 4398 return INITIATE_OCR; 4399 } 4400 4401 static void 4402 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4403 { 4404 int ret; 4405 struct megasas_cmd *cmd; 4406 struct megasas_dcmd_frame *dcmd; 4407 4408 struct MR_PRIV_DEVICE *mr_device_priv_data; 4409 u16 device_id = 0; 4410 4411 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4412 cmd = megasas_get_cmd(instance); 4413 4414 if (!cmd) { 4415 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4416 return; 4417 } 4418 4419 dcmd = &cmd->frame->dcmd; 4420 4421 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4422 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4423 4424 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4425 dcmd->cmd = MFI_CMD_DCMD; 4426 dcmd->cmd_status = 0xFF; 4427 dcmd->sge_count = 1; 4428 dcmd->flags = MFI_FRAME_DIR_READ; 4429 dcmd->timeout = 0; 4430 dcmd->pad_0 = 0; 4431 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4432 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4433 4434 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, 4435 sizeof(struct MR_PD_INFO)); 4436 4437 if ((instance->adapter_type != MFI_SERIES) && 4438 !instance->mask_interrupts) 4439 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4440 else 4441 ret = megasas_issue_polled(instance, cmd); 4442 4443 switch (ret) { 4444 case DCMD_SUCCESS: 4445 mr_device_priv_data = sdev->hostdata; 4446 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4447 mr_device_priv_data->interface_type = 4448 instance->pd_info->state.ddf.pdType.intf; 4449 break; 4450 4451 case DCMD_TIMEOUT: 4452 4453 switch (dcmd_timeout_ocr_possible(instance)) { 4454 case INITIATE_OCR: 4455 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4456 mutex_unlock(&instance->reset_mutex); 4457 megasas_reset_fusion(instance->host, 4458 MFI_IO_TIMEOUT_OCR); 4459 mutex_lock(&instance->reset_mutex); 4460 break; 4461 case KILL_ADAPTER: 4462 megaraid_sas_kill_hba(instance); 4463 break; 4464 case IGNORE_TIMEOUT: 4465 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4466 __func__, __LINE__); 4467 break; 4468 } 4469 4470 break; 4471 } 4472 4473 if (ret != DCMD_TIMEOUT) 4474 megasas_return_cmd(instance, cmd); 4475 4476 return; 4477 } 4478 /* 4479 * megasas_get_pd_list_info - Returns FW's pd_list structure 4480 * @instance: Adapter soft state 4481 * @pd_list: pd_list structure 4482 * 4483 * Issues an internal command (DCMD) to get the FW's controller PD 4484 * list structure. This information is mainly used to find out SYSTEM 4485 * supported by the FW. 4486 */ 4487 static int 4488 megasas_get_pd_list(struct megasas_instance *instance) 4489 { 4490 int ret = 0, pd_index = 0; 4491 struct megasas_cmd *cmd; 4492 struct megasas_dcmd_frame *dcmd; 4493 struct MR_PD_LIST *ci; 4494 struct MR_PD_ADDRESS *pd_addr; 4495 4496 if (instance->pd_list_not_supported) { 4497 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4498 "not supported by firmware\n"); 4499 return ret; 4500 } 4501 4502 ci = instance->pd_list_buf; 4503 4504 cmd = megasas_get_cmd(instance); 4505 4506 if (!cmd) { 4507 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4508 return -ENOMEM; 4509 } 4510 4511 dcmd = &cmd->frame->dcmd; 4512 4513 memset(ci, 0, sizeof(*ci)); 4514 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4515 4516 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4517 dcmd->mbox.b[1] = 0; 4518 dcmd->cmd = MFI_CMD_DCMD; 4519 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4520 dcmd->sge_count = 1; 4521 dcmd->flags = MFI_FRAME_DIR_READ; 4522 dcmd->timeout = 0; 4523 dcmd->pad_0 = 0; 4524 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4525 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4526 4527 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, 4528 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); 4529 4530 if ((instance->adapter_type != MFI_SERIES) && 4531 !instance->mask_interrupts) 4532 ret = megasas_issue_blocked_cmd(instance, cmd, 4533 MFI_IO_TIMEOUT_SECS); 4534 else 4535 ret = megasas_issue_polled(instance, cmd); 4536 4537 switch (ret) { 4538 case DCMD_FAILED: 4539 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4540 "failed/not supported by firmware\n"); 4541 4542 if (instance->adapter_type != MFI_SERIES) 4543 megaraid_sas_kill_hba(instance); 4544 else 4545 instance->pd_list_not_supported = 1; 4546 break; 4547 case DCMD_TIMEOUT: 4548 4549 switch (dcmd_timeout_ocr_possible(instance)) { 4550 case INITIATE_OCR: 4551 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4552 /* 4553 * DCMD failed from AEN path. 4554 * AEN path already hold reset_mutex to avoid PCI access 4555 * while OCR is in progress. 4556 */ 4557 mutex_unlock(&instance->reset_mutex); 4558 megasas_reset_fusion(instance->host, 4559 MFI_IO_TIMEOUT_OCR); 4560 mutex_lock(&instance->reset_mutex); 4561 break; 4562 case KILL_ADAPTER: 4563 megaraid_sas_kill_hba(instance); 4564 break; 4565 case IGNORE_TIMEOUT: 4566 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4567 __func__, __LINE__); 4568 break; 4569 } 4570 4571 break; 4572 4573 case DCMD_SUCCESS: 4574 pd_addr = ci->addr; 4575 if (megasas_dbg_lvl & LD_PD_DEBUG) 4576 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", 4577 __func__, le32_to_cpu(ci->count)); 4578 4579 if ((le32_to_cpu(ci->count) > 4580 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4581 break; 4582 4583 memset(instance->local_pd_list, 0, 4584 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4585 4586 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4587 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4588 le16_to_cpu(pd_addr->deviceId); 4589 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4590 pd_addr->scsiDevType; 4591 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4592 MR_PD_STATE_SYSTEM; 4593 if (megasas_dbg_lvl & LD_PD_DEBUG) 4594 dev_info(&instance->pdev->dev, 4595 "PD%d: targetID: 0x%03x deviceType:0x%x\n", 4596 pd_index, le16_to_cpu(pd_addr->deviceId), 4597 pd_addr->scsiDevType); 4598 pd_addr++; 4599 } 4600 4601 memcpy(instance->pd_list, instance->local_pd_list, 4602 sizeof(instance->pd_list)); 4603 break; 4604 4605 } 4606 4607 if (ret != DCMD_TIMEOUT) 4608 megasas_return_cmd(instance, cmd); 4609 4610 return ret; 4611 } 4612 4613 /* 4614 * megasas_get_ld_list_info - Returns FW's ld_list structure 4615 * @instance: Adapter soft state 4616 * @ld_list: ld_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 */ 4622 static int 4623 megasas_get_ld_list(struct megasas_instance *instance) 4624 { 4625 int ret = 0, ld_index = 0, ids = 0; 4626 struct megasas_cmd *cmd; 4627 struct megasas_dcmd_frame *dcmd; 4628 struct MR_LD_LIST *ci; 4629 dma_addr_t ci_h = 0; 4630 u32 ld_count; 4631 4632 ci = instance->ld_list_buf; 4633 ci_h = instance->ld_list_buf_h; 4634 4635 cmd = megasas_get_cmd(instance); 4636 4637 if (!cmd) { 4638 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4639 return -ENOMEM; 4640 } 4641 4642 dcmd = &cmd->frame->dcmd; 4643 4644 memset(ci, 0, sizeof(*ci)); 4645 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4646 4647 if (instance->supportmax256vd) 4648 dcmd->mbox.b[0] = 1; 4649 dcmd->cmd = MFI_CMD_DCMD; 4650 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4651 dcmd->sge_count = 1; 4652 dcmd->flags = MFI_FRAME_DIR_READ; 4653 dcmd->timeout = 0; 4654 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4655 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4656 dcmd->pad_0 = 0; 4657 4658 megasas_set_dma_settings(instance, dcmd, ci_h, 4659 sizeof(struct MR_LD_LIST)); 4660 4661 if ((instance->adapter_type != MFI_SERIES) && 4662 !instance->mask_interrupts) 4663 ret = megasas_issue_blocked_cmd(instance, cmd, 4664 MFI_IO_TIMEOUT_SECS); 4665 else 4666 ret = megasas_issue_polled(instance, cmd); 4667 4668 ld_count = le32_to_cpu(ci->ldCount); 4669 4670 switch (ret) { 4671 case DCMD_FAILED: 4672 megaraid_sas_kill_hba(instance); 4673 break; 4674 case DCMD_TIMEOUT: 4675 4676 switch (dcmd_timeout_ocr_possible(instance)) { 4677 case INITIATE_OCR: 4678 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4679 /* 4680 * DCMD failed from AEN path. 4681 * AEN path already hold reset_mutex to avoid PCI access 4682 * while OCR is in progress. 4683 */ 4684 mutex_unlock(&instance->reset_mutex); 4685 megasas_reset_fusion(instance->host, 4686 MFI_IO_TIMEOUT_OCR); 4687 mutex_lock(&instance->reset_mutex); 4688 break; 4689 case KILL_ADAPTER: 4690 megaraid_sas_kill_hba(instance); 4691 break; 4692 case IGNORE_TIMEOUT: 4693 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4694 __func__, __LINE__); 4695 break; 4696 } 4697 4698 break; 4699 4700 case DCMD_SUCCESS: 4701 if (megasas_dbg_lvl & LD_PD_DEBUG) 4702 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4703 __func__, ld_count); 4704 4705 if (ld_count > instance->fw_supported_vd_count) 4706 break; 4707 4708 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4709 4710 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4711 if (ci->ldList[ld_index].state != 0) { 4712 ids = ci->ldList[ld_index].ref.targetId; 4713 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4714 if (megasas_dbg_lvl & LD_PD_DEBUG) 4715 dev_info(&instance->pdev->dev, 4716 "LD%d: targetID: 0x%03x\n", 4717 ld_index, ids); 4718 } 4719 } 4720 4721 break; 4722 } 4723 4724 if (ret != DCMD_TIMEOUT) 4725 megasas_return_cmd(instance, cmd); 4726 4727 return ret; 4728 } 4729 4730 /** 4731 * megasas_ld_list_query - Returns FW's ld_list structure 4732 * @instance: Adapter soft state 4733 * @ld_list: ld_list structure 4734 * 4735 * Issues an internal command (DCMD) to get the FW's controller PD 4736 * list structure. This information is mainly used to find out SYSTEM 4737 * supported by the FW. 4738 */ 4739 static int 4740 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4741 { 4742 int ret = 0, ld_index = 0, ids = 0; 4743 struct megasas_cmd *cmd; 4744 struct megasas_dcmd_frame *dcmd; 4745 struct MR_LD_TARGETID_LIST *ci; 4746 dma_addr_t ci_h = 0; 4747 u32 tgtid_count; 4748 4749 ci = instance->ld_targetid_list_buf; 4750 ci_h = instance->ld_targetid_list_buf_h; 4751 4752 cmd = megasas_get_cmd(instance); 4753 4754 if (!cmd) { 4755 dev_warn(&instance->pdev->dev, 4756 "megasas_ld_list_query: Failed to get cmd\n"); 4757 return -ENOMEM; 4758 } 4759 4760 dcmd = &cmd->frame->dcmd; 4761 4762 memset(ci, 0, sizeof(*ci)); 4763 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4764 4765 dcmd->mbox.b[0] = query_type; 4766 if (instance->supportmax256vd) 4767 dcmd->mbox.b[2] = 1; 4768 4769 dcmd->cmd = MFI_CMD_DCMD; 4770 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4771 dcmd->sge_count = 1; 4772 dcmd->flags = MFI_FRAME_DIR_READ; 4773 dcmd->timeout = 0; 4774 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4775 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4776 dcmd->pad_0 = 0; 4777 4778 megasas_set_dma_settings(instance, dcmd, ci_h, 4779 sizeof(struct MR_LD_TARGETID_LIST)); 4780 4781 if ((instance->adapter_type != MFI_SERIES) && 4782 !instance->mask_interrupts) 4783 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4784 else 4785 ret = megasas_issue_polled(instance, cmd); 4786 4787 switch (ret) { 4788 case DCMD_FAILED: 4789 dev_info(&instance->pdev->dev, 4790 "DCMD not supported by firmware - %s %d\n", 4791 __func__, __LINE__); 4792 ret = megasas_get_ld_list(instance); 4793 break; 4794 case DCMD_TIMEOUT: 4795 switch (dcmd_timeout_ocr_possible(instance)) { 4796 case INITIATE_OCR: 4797 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4798 /* 4799 * DCMD failed from AEN path. 4800 * AEN path already hold reset_mutex to avoid PCI access 4801 * while OCR is in progress. 4802 */ 4803 mutex_unlock(&instance->reset_mutex); 4804 megasas_reset_fusion(instance->host, 4805 MFI_IO_TIMEOUT_OCR); 4806 mutex_lock(&instance->reset_mutex); 4807 break; 4808 case KILL_ADAPTER: 4809 megaraid_sas_kill_hba(instance); 4810 break; 4811 case IGNORE_TIMEOUT: 4812 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4813 __func__, __LINE__); 4814 break; 4815 } 4816 4817 break; 4818 case DCMD_SUCCESS: 4819 tgtid_count = le32_to_cpu(ci->count); 4820 4821 if (megasas_dbg_lvl & LD_PD_DEBUG) 4822 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4823 __func__, tgtid_count); 4824 4825 if ((tgtid_count > (instance->fw_supported_vd_count))) 4826 break; 4827 4828 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4829 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4830 ids = ci->targetId[ld_index]; 4831 instance->ld_ids[ids] = ci->targetId[ld_index]; 4832 if (megasas_dbg_lvl & LD_PD_DEBUG) 4833 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", 4834 ld_index, ci->targetId[ld_index]); 4835 } 4836 4837 break; 4838 } 4839 4840 if (ret != DCMD_TIMEOUT) 4841 megasas_return_cmd(instance, cmd); 4842 4843 return ret; 4844 } 4845 4846 /** 4847 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET 4848 * dcmd.mbox - reserved 4849 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure 4850 * Desc: This DCMD will return the combined device list 4851 * Status: MFI_STAT_OK - List returned successfully 4852 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been 4853 * disabled 4854 * @instance: Adapter soft state 4855 * @is_probe: Driver probe check 4856 * Return: 0 if DCMD succeeded 4857 * non-zero if failed 4858 */ 4859 static int 4860 megasas_host_device_list_query(struct megasas_instance *instance, 4861 bool is_probe) 4862 { 4863 int ret, i, target_id; 4864 struct megasas_cmd *cmd; 4865 struct megasas_dcmd_frame *dcmd; 4866 struct MR_HOST_DEVICE_LIST *ci; 4867 u32 count; 4868 dma_addr_t ci_h; 4869 4870 ci = instance->host_device_list_buf; 4871 ci_h = instance->host_device_list_buf_h; 4872 4873 cmd = megasas_get_cmd(instance); 4874 4875 if (!cmd) { 4876 dev_warn(&instance->pdev->dev, 4877 "%s: failed to get cmd\n", 4878 __func__); 4879 return -ENOMEM; 4880 } 4881 4882 dcmd = &cmd->frame->dcmd; 4883 4884 memset(ci, 0, sizeof(*ci)); 4885 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4886 4887 dcmd->mbox.b[0] = is_probe ? 0 : 1; 4888 dcmd->cmd = MFI_CMD_DCMD; 4889 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4890 dcmd->sge_count = 1; 4891 dcmd->flags = MFI_FRAME_DIR_READ; 4892 dcmd->timeout = 0; 4893 dcmd->pad_0 = 0; 4894 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); 4895 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); 4896 4897 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); 4898 4899 if (!instance->mask_interrupts) { 4900 ret = megasas_issue_blocked_cmd(instance, cmd, 4901 MFI_IO_TIMEOUT_SECS); 4902 } else { 4903 ret = megasas_issue_polled(instance, cmd); 4904 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4905 } 4906 4907 switch (ret) { 4908 case DCMD_SUCCESS: 4909 /* Fill the internal pd_list and ld_ids array based on 4910 * targetIds returned by FW 4911 */ 4912 count = le32_to_cpu(ci->count); 4913 4914 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) 4915 break; 4916 4917 if (megasas_dbg_lvl & LD_PD_DEBUG) 4918 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", 4919 __func__, count); 4920 4921 memset(instance->local_pd_list, 0, 4922 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4923 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4924 for (i = 0; i < count; i++) { 4925 target_id = le16_to_cpu(ci->host_device_list[i].target_id); 4926 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { 4927 instance->local_pd_list[target_id].tid = target_id; 4928 instance->local_pd_list[target_id].driveType = 4929 ci->host_device_list[i].scsi_type; 4930 instance->local_pd_list[target_id].driveState = 4931 MR_PD_STATE_SYSTEM; 4932 if (megasas_dbg_lvl & LD_PD_DEBUG) 4933 dev_info(&instance->pdev->dev, 4934 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", 4935 i, target_id, ci->host_device_list[i].scsi_type); 4936 } else { 4937 instance->ld_ids[target_id] = target_id; 4938 if (megasas_dbg_lvl & LD_PD_DEBUG) 4939 dev_info(&instance->pdev->dev, 4940 "Device %d: LD targetID: 0x%03x\n", 4941 i, target_id); 4942 } 4943 } 4944 4945 memcpy(instance->pd_list, instance->local_pd_list, 4946 sizeof(instance->pd_list)); 4947 break; 4948 4949 case DCMD_TIMEOUT: 4950 switch (dcmd_timeout_ocr_possible(instance)) { 4951 case INITIATE_OCR: 4952 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4953 mutex_unlock(&instance->reset_mutex); 4954 megasas_reset_fusion(instance->host, 4955 MFI_IO_TIMEOUT_OCR); 4956 mutex_lock(&instance->reset_mutex); 4957 break; 4958 case KILL_ADAPTER: 4959 megaraid_sas_kill_hba(instance); 4960 break; 4961 case IGNORE_TIMEOUT: 4962 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4963 __func__, __LINE__); 4964 break; 4965 } 4966 break; 4967 case DCMD_FAILED: 4968 dev_err(&instance->pdev->dev, 4969 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", 4970 __func__); 4971 break; 4972 } 4973 4974 if (ret != DCMD_TIMEOUT) 4975 megasas_return_cmd(instance, cmd); 4976 4977 return ret; 4978 } 4979 4980 /* 4981 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 4982 * instance : Controller's instance 4983 */ 4984 static void megasas_update_ext_vd_details(struct megasas_instance *instance) 4985 { 4986 struct fusion_context *fusion; 4987 u32 ventura_map_sz = 0; 4988 4989 fusion = instance->ctrl_context; 4990 /* For MFI based controllers return dummy success */ 4991 if (!fusion) 4992 return; 4993 4994 instance->supportmax256vd = 4995 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; 4996 /* Below is additional check to address future FW enhancement */ 4997 if (instance->ctrl_info_buf->max_lds > 64) 4998 instance->supportmax256vd = 1; 4999 5000 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 5001 * MEGASAS_MAX_DEV_PER_CHANNEL; 5002 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 5003 * MEGASAS_MAX_DEV_PER_CHANNEL; 5004 if (instance->supportmax256vd) { 5005 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 5006 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5007 } else { 5008 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5009 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5010 } 5011 5012 dev_info(&instance->pdev->dev, 5013 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", 5014 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, 5015 instance->ctrl_info_buf->max_lds); 5016 5017 if (instance->max_raid_mapsize) { 5018 ventura_map_sz = instance->max_raid_mapsize * 5019 MR_MIN_MAP_SIZE; /* 64k */ 5020 fusion->current_map_sz = ventura_map_sz; 5021 fusion->max_map_sz = ventura_map_sz; 5022 } else { 5023 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + 5024 (sizeof(struct MR_LD_SPAN_MAP) * 5025 (instance->fw_supported_vd_count - 1)); 5026 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 5027 5028 fusion->max_map_sz = 5029 max(fusion->old_map_sz, fusion->new_map_sz); 5030 5031 if (instance->supportmax256vd) 5032 fusion->current_map_sz = fusion->new_map_sz; 5033 else 5034 fusion->current_map_sz = fusion->old_map_sz; 5035 } 5036 /* irrespective of FW raid maps, driver raid map is constant */ 5037 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 5038 } 5039 5040 /* 5041 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 5042 * dcmd.hdr.length - number of bytes to read 5043 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES 5044 * Desc: Fill in snapdump properties 5045 * Status: MFI_STAT_OK- Command successful 5046 */ 5047 void megasas_get_snapdump_properties(struct megasas_instance *instance) 5048 { 5049 int ret = 0; 5050 struct megasas_cmd *cmd; 5051 struct megasas_dcmd_frame *dcmd; 5052 struct MR_SNAPDUMP_PROPERTIES *ci; 5053 dma_addr_t ci_h = 0; 5054 5055 ci = instance->snapdump_prop; 5056 ci_h = instance->snapdump_prop_h; 5057 5058 if (!ci) 5059 return; 5060 5061 cmd = megasas_get_cmd(instance); 5062 5063 if (!cmd) { 5064 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); 5065 return; 5066 } 5067 5068 dcmd = &cmd->frame->dcmd; 5069 5070 memset(ci, 0, sizeof(*ci)); 5071 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5072 5073 dcmd->cmd = MFI_CMD_DCMD; 5074 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5075 dcmd->sge_count = 1; 5076 dcmd->flags = MFI_FRAME_DIR_READ; 5077 dcmd->timeout = 0; 5078 dcmd->pad_0 = 0; 5079 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5080 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); 5081 5082 megasas_set_dma_settings(instance, dcmd, ci_h, 5083 sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5084 5085 if (!instance->mask_interrupts) { 5086 ret = megasas_issue_blocked_cmd(instance, cmd, 5087 MFI_IO_TIMEOUT_SECS); 5088 } else { 5089 ret = megasas_issue_polled(instance, cmd); 5090 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5091 } 5092 5093 switch (ret) { 5094 case DCMD_SUCCESS: 5095 instance->snapdump_wait_time = 5096 min_t(u8, ci->trigger_min_num_sec_before_ocr, 5097 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); 5098 break; 5099 5100 case DCMD_TIMEOUT: 5101 switch (dcmd_timeout_ocr_possible(instance)) { 5102 case INITIATE_OCR: 5103 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5104 mutex_unlock(&instance->reset_mutex); 5105 megasas_reset_fusion(instance->host, 5106 MFI_IO_TIMEOUT_OCR); 5107 mutex_lock(&instance->reset_mutex); 5108 break; 5109 case KILL_ADAPTER: 5110 megaraid_sas_kill_hba(instance); 5111 break; 5112 case IGNORE_TIMEOUT: 5113 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5114 __func__, __LINE__); 5115 break; 5116 } 5117 } 5118 5119 if (ret != DCMD_TIMEOUT) 5120 megasas_return_cmd(instance, cmd); 5121 } 5122 5123 /** 5124 * megasas_get_controller_info - Returns FW's controller structure 5125 * @instance: Adapter soft state 5126 * 5127 * Issues an internal command (DCMD) to get the FW's controller structure. 5128 * This information is mainly used to find out the maximum IO transfer per 5129 * command supported by the FW. 5130 */ 5131 int 5132 megasas_get_ctrl_info(struct megasas_instance *instance) 5133 { 5134 int ret = 0; 5135 struct megasas_cmd *cmd; 5136 struct megasas_dcmd_frame *dcmd; 5137 struct megasas_ctrl_info *ci; 5138 dma_addr_t ci_h = 0; 5139 5140 ci = instance->ctrl_info_buf; 5141 ci_h = instance->ctrl_info_buf_h; 5142 5143 cmd = megasas_get_cmd(instance); 5144 5145 if (!cmd) { 5146 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 5147 return -ENOMEM; 5148 } 5149 5150 dcmd = &cmd->frame->dcmd; 5151 5152 memset(ci, 0, sizeof(*ci)); 5153 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5154 5155 dcmd->cmd = MFI_CMD_DCMD; 5156 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5157 dcmd->sge_count = 1; 5158 dcmd->flags = MFI_FRAME_DIR_READ; 5159 dcmd->timeout = 0; 5160 dcmd->pad_0 = 0; 5161 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 5162 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 5163 dcmd->mbox.b[0] = 1; 5164 5165 megasas_set_dma_settings(instance, dcmd, ci_h, 5166 sizeof(struct megasas_ctrl_info)); 5167 5168 if ((instance->adapter_type != MFI_SERIES) && 5169 !instance->mask_interrupts) { 5170 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5171 } else { 5172 ret = megasas_issue_polled(instance, cmd); 5173 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5174 } 5175 5176 switch (ret) { 5177 case DCMD_SUCCESS: 5178 /* Save required controller information in 5179 * CPU endianness format. 5180 */ 5181 le32_to_cpus((u32 *)&ci->properties.OnOffProperties); 5182 le16_to_cpus((u16 *)&ci->properties.on_off_properties2); 5183 le32_to_cpus((u32 *)&ci->adapterOperations2); 5184 le32_to_cpus((u32 *)&ci->adapterOperations3); 5185 le16_to_cpus((u16 *)&ci->adapter_operations4); 5186 le32_to_cpus((u32 *)&ci->adapter_operations5); 5187 5188 /* Update the latest Ext VD info. 5189 * From Init path, store current firmware details. 5190 * From OCR path, detect any firmware properties changes. 5191 * in case of Firmware upgrade without system reboot. 5192 */ 5193 megasas_update_ext_vd_details(instance); 5194 instance->support_seqnum_jbod_fp = 5195 ci->adapterOperations3.useSeqNumJbodFP; 5196 instance->support_morethan256jbod = 5197 ci->adapter_operations4.support_pd_map_target_id; 5198 instance->support_nvme_passthru = 5199 ci->adapter_operations4.support_nvme_passthru; 5200 instance->support_pci_lane_margining = 5201 ci->adapter_operations5.support_pci_lane_margining; 5202 instance->task_abort_tmo = ci->TaskAbortTO; 5203 instance->max_reset_tmo = ci->MaxResetTO; 5204 5205 /*Check whether controller is iMR or MR */ 5206 instance->is_imr = (ci->memory_size ? 0 : 1); 5207 5208 instance->snapdump_wait_time = 5209 (ci->properties.on_off_properties2.enable_snap_dump ? 5210 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); 5211 5212 instance->enable_fw_dev_list = 5213 ci->properties.on_off_properties2.enable_fw_dev_list; 5214 5215 dev_info(&instance->pdev->dev, 5216 "controller type\t: %s(%dMB)\n", 5217 instance->is_imr ? "iMR" : "MR", 5218 le16_to_cpu(ci->memory_size)); 5219 5220 instance->disableOnlineCtrlReset = 5221 ci->properties.OnOffProperties.disableOnlineCtrlReset; 5222 instance->secure_jbod_support = 5223 ci->adapterOperations3.supportSecurityonJBOD; 5224 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 5225 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 5226 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 5227 instance->secure_jbod_support ? "Yes" : "No"); 5228 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", 5229 instance->support_nvme_passthru ? "Yes" : "No"); 5230 dev_info(&instance->pdev->dev, 5231 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", 5232 instance->task_abort_tmo, instance->max_reset_tmo); 5233 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", 5234 instance->support_seqnum_jbod_fp ? "Yes" : "No"); 5235 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", 5236 instance->support_pci_lane_margining ? "Yes" : "No"); 5237 5238 break; 5239 5240 case DCMD_TIMEOUT: 5241 switch (dcmd_timeout_ocr_possible(instance)) { 5242 case INITIATE_OCR: 5243 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5244 mutex_unlock(&instance->reset_mutex); 5245 megasas_reset_fusion(instance->host, 5246 MFI_IO_TIMEOUT_OCR); 5247 mutex_lock(&instance->reset_mutex); 5248 break; 5249 case KILL_ADAPTER: 5250 megaraid_sas_kill_hba(instance); 5251 break; 5252 case IGNORE_TIMEOUT: 5253 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5254 __func__, __LINE__); 5255 break; 5256 } 5257 break; 5258 case DCMD_FAILED: 5259 megaraid_sas_kill_hba(instance); 5260 break; 5261 5262 } 5263 5264 if (ret != DCMD_TIMEOUT) 5265 megasas_return_cmd(instance, cmd); 5266 5267 return ret; 5268 } 5269 5270 /* 5271 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 5272 * to firmware 5273 * 5274 * @instance: Adapter soft state 5275 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 5276 MR_CRASH_BUF_TURN_OFF = 0 5277 MR_CRASH_BUF_TURN_ON = 1 5278 * @return 0 on success non-zero on failure. 5279 * Issues an internal command (DCMD) to set parameters for crash dump feature. 5280 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 5281 * that driver supports crash dump feature. This DCMD will be sent only if 5282 * crash dump feature is supported by the FW. 5283 * 5284 */ 5285 int megasas_set_crash_dump_params(struct megasas_instance *instance, 5286 u8 crash_buf_state) 5287 { 5288 int ret = 0; 5289 struct megasas_cmd *cmd; 5290 struct megasas_dcmd_frame *dcmd; 5291 5292 cmd = megasas_get_cmd(instance); 5293 5294 if (!cmd) { 5295 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 5296 return -ENOMEM; 5297 } 5298 5299 5300 dcmd = &cmd->frame->dcmd; 5301 5302 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5303 dcmd->mbox.b[0] = crash_buf_state; 5304 dcmd->cmd = MFI_CMD_DCMD; 5305 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5306 dcmd->sge_count = 1; 5307 dcmd->flags = MFI_FRAME_DIR_NONE; 5308 dcmd->timeout = 0; 5309 dcmd->pad_0 = 0; 5310 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 5311 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 5312 5313 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, 5314 CRASH_DMA_BUF_SIZE); 5315 5316 if ((instance->adapter_type != MFI_SERIES) && 5317 !instance->mask_interrupts) 5318 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5319 else 5320 ret = megasas_issue_polled(instance, cmd); 5321 5322 if (ret == DCMD_TIMEOUT) { 5323 switch (dcmd_timeout_ocr_possible(instance)) { 5324 case INITIATE_OCR: 5325 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5326 megasas_reset_fusion(instance->host, 5327 MFI_IO_TIMEOUT_OCR); 5328 break; 5329 case KILL_ADAPTER: 5330 megaraid_sas_kill_hba(instance); 5331 break; 5332 case IGNORE_TIMEOUT: 5333 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5334 __func__, __LINE__); 5335 break; 5336 } 5337 } else 5338 megasas_return_cmd(instance, cmd); 5339 5340 return ret; 5341 } 5342 5343 /** 5344 * megasas_issue_init_mfi - Initializes the FW 5345 * @instance: Adapter soft state 5346 * 5347 * Issues the INIT MFI cmd 5348 */ 5349 static int 5350 megasas_issue_init_mfi(struct megasas_instance *instance) 5351 { 5352 __le32 context; 5353 struct megasas_cmd *cmd; 5354 struct megasas_init_frame *init_frame; 5355 struct megasas_init_queue_info *initq_info; 5356 dma_addr_t init_frame_h; 5357 dma_addr_t initq_info_h; 5358 5359 /* 5360 * Prepare a init frame. Note the init frame points to queue info 5361 * structure. Each frame has SGL allocated after first 64 bytes. For 5362 * this frame - since we don't need any SGL - we use SGL's space as 5363 * queue info structure 5364 * 5365 * We will not get a NULL command below. We just created the pool. 5366 */ 5367 cmd = megasas_get_cmd(instance); 5368 5369 init_frame = (struct megasas_init_frame *)cmd->frame; 5370 initq_info = (struct megasas_init_queue_info *) 5371 ((unsigned long)init_frame + 64); 5372 5373 init_frame_h = cmd->frame_phys_addr; 5374 initq_info_h = init_frame_h + 64; 5375 5376 context = init_frame->context; 5377 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 5378 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 5379 init_frame->context = context; 5380 5381 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 5382 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 5383 5384 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 5385 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 5386 5387 init_frame->cmd = MFI_CMD_INIT; 5388 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 5389 init_frame->queue_info_new_phys_addr_lo = 5390 cpu_to_le32(lower_32_bits(initq_info_h)); 5391 init_frame->queue_info_new_phys_addr_hi = 5392 cpu_to_le32(upper_32_bits(initq_info_h)); 5393 5394 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 5395 5396 /* 5397 * disable the intr before firing the init frame to FW 5398 */ 5399 instance->instancet->disable_intr(instance); 5400 5401 /* 5402 * Issue the init frame in polled mode 5403 */ 5404 5405 if (megasas_issue_polled(instance, cmd)) { 5406 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 5407 megasas_return_cmd(instance, cmd); 5408 goto fail_fw_init; 5409 } 5410 5411 megasas_return_cmd(instance, cmd); 5412 5413 return 0; 5414 5415 fail_fw_init: 5416 return -EINVAL; 5417 } 5418 5419 static u32 5420 megasas_init_adapter_mfi(struct megasas_instance *instance) 5421 { 5422 u32 context_sz; 5423 u32 reply_q_sz; 5424 5425 /* 5426 * Get various operational parameters from status register 5427 */ 5428 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; 5429 /* 5430 * Reduce the max supported cmds by 1. This is to ensure that the 5431 * reply_q_sz (1 more than the max cmd that driver may send) 5432 * does not exceed max cmds that the FW can support 5433 */ 5434 instance->max_fw_cmds = instance->max_fw_cmds-1; 5435 instance->max_mfi_cmds = instance->max_fw_cmds; 5436 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> 5437 0x10; 5438 /* 5439 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 5440 * are reserved for IOCTL + driver's internal DCMDs. 5441 */ 5442 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 5443 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 5444 instance->max_scsi_cmds = (instance->max_fw_cmds - 5445 MEGASAS_SKINNY_INT_CMDS); 5446 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 5447 } else { 5448 instance->max_scsi_cmds = (instance->max_fw_cmds - 5449 MEGASAS_INT_CMDS); 5450 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 5451 } 5452 5453 instance->cur_can_queue = instance->max_scsi_cmds; 5454 /* 5455 * Create a pool of commands 5456 */ 5457 if (megasas_alloc_cmds(instance)) 5458 goto fail_alloc_cmds; 5459 5460 /* 5461 * Allocate memory for reply queue. Length of reply queue should 5462 * be _one_ more than the maximum commands handled by the firmware. 5463 * 5464 * Note: When FW completes commands, it places corresponding contex 5465 * values in this circular reply queue. This circular queue is a fairly 5466 * typical producer-consumer queue. FW is the producer (of completed 5467 * commands) and the driver is the consumer. 5468 */ 5469 context_sz = sizeof(u32); 5470 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 5471 5472 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, 5473 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); 5474 5475 if (!instance->reply_queue) { 5476 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 5477 goto fail_reply_queue; 5478 } 5479 5480 if (megasas_issue_init_mfi(instance)) 5481 goto fail_fw_init; 5482 5483 if (megasas_get_ctrl_info(instance)) { 5484 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 5485 "Fail from %s %d\n", instance->unique_id, 5486 __func__, __LINE__); 5487 goto fail_fw_init; 5488 } 5489 5490 instance->fw_support_ieee = 0; 5491 instance->fw_support_ieee = 5492 (instance->instancet->read_fw_status_reg(instance) & 5493 0x04000000); 5494 5495 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 5496 instance->fw_support_ieee); 5497 5498 if (instance->fw_support_ieee) 5499 instance->flag_ieee = 1; 5500 5501 return 0; 5502 5503 fail_fw_init: 5504 5505 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 5506 instance->reply_queue, instance->reply_queue_h); 5507 fail_reply_queue: 5508 megasas_free_cmds(instance); 5509 5510 fail_alloc_cmds: 5511 return 1; 5512 } 5513 5514 static 5515 void megasas_setup_irq_poll(struct megasas_instance *instance) 5516 { 5517 struct megasas_irq_context *irq_ctx; 5518 u32 count, i; 5519 5520 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5521 5522 /* Initialize IRQ poll */ 5523 for (i = 0; i < count; i++) { 5524 irq_ctx = &instance->irq_context[i]; 5525 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); 5526 irq_ctx->irq_poll_scheduled = false; 5527 irq_poll_init(&irq_ctx->irqpoll, 5528 instance->threshold_reply_count, 5529 megasas_irqpoll); 5530 } 5531 } 5532 5533 /* 5534 * megasas_setup_irqs_ioapic - register legacy interrupts. 5535 * @instance: Adapter soft state 5536 * 5537 * Do not enable interrupt, only setup ISRs. 5538 * 5539 * Return 0 on success. 5540 */ 5541 static int 5542 megasas_setup_irqs_ioapic(struct megasas_instance *instance) 5543 { 5544 struct pci_dev *pdev; 5545 5546 pdev = instance->pdev; 5547 instance->irq_context[0].instance = instance; 5548 instance->irq_context[0].MSIxIndex = 0; 5549 if (request_irq(pci_irq_vector(pdev, 0), 5550 instance->instancet->service_isr, IRQF_SHARED, 5551 "megasas", &instance->irq_context[0])) { 5552 dev_err(&instance->pdev->dev, 5553 "Failed to register IRQ from %s %d\n", 5554 __func__, __LINE__); 5555 return -1; 5556 } 5557 instance->perf_mode = MR_LATENCY_PERF_MODE; 5558 instance->low_latency_index_start = 0; 5559 return 0; 5560 } 5561 5562 /** 5563 * megasas_setup_irqs_msix - register MSI-x interrupts. 5564 * @instance: Adapter soft state 5565 * @is_probe: Driver probe check 5566 * 5567 * Do not enable interrupt, only setup ISRs. 5568 * 5569 * Return 0 on success. 5570 */ 5571 static int 5572 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5573 { 5574 int i, j; 5575 struct pci_dev *pdev; 5576 5577 pdev = instance->pdev; 5578 5579 /* Try MSI-x */ 5580 for (i = 0; i < instance->msix_vectors; i++) { 5581 instance->irq_context[i].instance = instance; 5582 instance->irq_context[i].MSIxIndex = i; 5583 if (request_irq(pci_irq_vector(pdev, i), 5584 instance->instancet->service_isr, 0, "megasas", 5585 &instance->irq_context[i])) { 5586 dev_err(&instance->pdev->dev, 5587 "Failed to register IRQ for vector %d.\n", i); 5588 for (j = 0; j < i; j++) 5589 free_irq(pci_irq_vector(pdev, j), 5590 &instance->irq_context[j]); 5591 /* Retry irq register for IO_APIC*/ 5592 instance->msix_vectors = 0; 5593 instance->msix_load_balance = false; 5594 if (is_probe) { 5595 pci_free_irq_vectors(instance->pdev); 5596 return megasas_setup_irqs_ioapic(instance); 5597 } else { 5598 return -1; 5599 } 5600 } 5601 } 5602 5603 return 0; 5604 } 5605 5606 /* 5607 * megasas_destroy_irqs- unregister interrupts. 5608 * @instance: Adapter soft state 5609 * return: void 5610 */ 5611 static void 5612 megasas_destroy_irqs(struct megasas_instance *instance) { 5613 5614 int i; 5615 int count; 5616 struct megasas_irq_context *irq_ctx; 5617 5618 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5619 if (instance->adapter_type != MFI_SERIES) { 5620 for (i = 0; i < count; i++) { 5621 irq_ctx = &instance->irq_context[i]; 5622 irq_poll_disable(&irq_ctx->irqpoll); 5623 } 5624 } 5625 5626 if (instance->msix_vectors) 5627 for (i = 0; i < instance->msix_vectors; i++) { 5628 free_irq(pci_irq_vector(instance->pdev, i), 5629 &instance->irq_context[i]); 5630 } 5631 else 5632 free_irq(pci_irq_vector(instance->pdev, 0), 5633 &instance->irq_context[0]); 5634 } 5635 5636 /** 5637 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5638 * @instance: Adapter soft state 5639 * @is_probe: Driver probe check 5640 * 5641 * Return 0 on success. 5642 */ 5643 void 5644 megasas_setup_jbod_map(struct megasas_instance *instance) 5645 { 5646 int i; 5647 struct fusion_context *fusion = instance->ctrl_context; 5648 u32 pd_seq_map_sz; 5649 5650 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 5651 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); 5652 5653 instance->use_seqnum_jbod_fp = 5654 instance->support_seqnum_jbod_fp; 5655 if (reset_devices || !fusion || 5656 !instance->support_seqnum_jbod_fp) { 5657 dev_info(&instance->pdev->dev, 5658 "JBOD sequence map is disabled %s %d\n", 5659 __func__, __LINE__); 5660 instance->use_seqnum_jbod_fp = false; 5661 return; 5662 } 5663 5664 if (fusion->pd_seq_sync[0]) 5665 goto skip_alloc; 5666 5667 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5668 fusion->pd_seq_sync[i] = dma_alloc_coherent 5669 (&instance->pdev->dev, pd_seq_map_sz, 5670 &fusion->pd_seq_phys[i], GFP_KERNEL); 5671 if (!fusion->pd_seq_sync[i]) { 5672 dev_err(&instance->pdev->dev, 5673 "Failed to allocate memory from %s %d\n", 5674 __func__, __LINE__); 5675 if (i == 1) { 5676 dma_free_coherent(&instance->pdev->dev, 5677 pd_seq_map_sz, fusion->pd_seq_sync[0], 5678 fusion->pd_seq_phys[0]); 5679 fusion->pd_seq_sync[0] = NULL; 5680 } 5681 instance->use_seqnum_jbod_fp = false; 5682 return; 5683 } 5684 } 5685 5686 skip_alloc: 5687 if (!megasas_sync_pd_seq_num(instance, false) && 5688 !megasas_sync_pd_seq_num(instance, true)) 5689 instance->use_seqnum_jbod_fp = true; 5690 else 5691 instance->use_seqnum_jbod_fp = false; 5692 } 5693 5694 static void megasas_setup_reply_map(struct megasas_instance *instance) 5695 { 5696 const struct cpumask *mask; 5697 unsigned int queue, cpu, low_latency_index_start; 5698 5699 low_latency_index_start = instance->low_latency_index_start; 5700 5701 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { 5702 mask = pci_irq_get_affinity(instance->pdev, queue); 5703 if (!mask) 5704 goto fallback; 5705 5706 for_each_cpu(cpu, mask) 5707 instance->reply_map[cpu] = queue; 5708 } 5709 return; 5710 5711 fallback: 5712 queue = low_latency_index_start; 5713 for_each_possible_cpu(cpu) { 5714 instance->reply_map[cpu] = queue; 5715 if (queue == (instance->msix_vectors - 1)) 5716 queue = low_latency_index_start; 5717 else 5718 queue++; 5719 } 5720 } 5721 5722 /** 5723 * megasas_get_device_list - Get the PD and LD device list from FW. 5724 * @instance: Adapter soft state 5725 * @return: Success or failure 5726 * 5727 * Issue DCMDs to Firmware to get the PD and LD list. 5728 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 5729 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 5730 */ 5731 static 5732 int megasas_get_device_list(struct megasas_instance *instance) 5733 { 5734 memset(instance->pd_list, 0, 5735 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); 5736 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 5737 5738 if (instance->enable_fw_dev_list) { 5739 if (megasas_host_device_list_query(instance, true)) 5740 return FAILED; 5741 } else { 5742 if (megasas_get_pd_list(instance) < 0) { 5743 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5744 return FAILED; 5745 } 5746 5747 if (megasas_ld_list_query(instance, 5748 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { 5749 dev_err(&instance->pdev->dev, "failed to get LD list\n"); 5750 return FAILED; 5751 } 5752 } 5753 5754 return SUCCESS; 5755 } 5756 5757 /** 5758 * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues 5759 * @instance: Adapter soft state 5760 * return: void 5761 */ 5762 static inline void 5763 megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance) 5764 { 5765 int i; 5766 int local_numa_node; 5767 5768 if (instance->perf_mode == MR_BALANCED_PERF_MODE) { 5769 local_numa_node = dev_to_node(&instance->pdev->dev); 5770 5771 for (i = 0; i < instance->low_latency_index_start; i++) 5772 irq_set_affinity_hint(pci_irq_vector(instance->pdev, i), 5773 cpumask_of_node(local_numa_node)); 5774 } 5775 } 5776 5777 static int 5778 __megasas_alloc_irq_vectors(struct megasas_instance *instance) 5779 { 5780 int i, irq_flags; 5781 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; 5782 struct irq_affinity *descp = &desc; 5783 5784 irq_flags = PCI_IRQ_MSIX; 5785 5786 if (instance->smp_affinity_enable) 5787 irq_flags |= PCI_IRQ_AFFINITY; 5788 else 5789 descp = NULL; 5790 5791 i = pci_alloc_irq_vectors_affinity(instance->pdev, 5792 instance->low_latency_index_start, 5793 instance->msix_vectors, irq_flags, descp); 5794 5795 return i; 5796 } 5797 5798 /** 5799 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors 5800 * @instance: Adapter soft state 5801 * return: void 5802 */ 5803 static void 5804 megasas_alloc_irq_vectors(struct megasas_instance *instance) 5805 { 5806 int i; 5807 unsigned int num_msix_req; 5808 5809 i = __megasas_alloc_irq_vectors(instance); 5810 5811 if ((instance->perf_mode == MR_BALANCED_PERF_MODE) && 5812 (i != instance->msix_vectors)) { 5813 if (instance->msix_vectors) 5814 pci_free_irq_vectors(instance->pdev); 5815 /* Disable Balanced IOPS mode and try realloc vectors */ 5816 instance->perf_mode = MR_LATENCY_PERF_MODE; 5817 instance->low_latency_index_start = 1; 5818 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 5819 5820 instance->msix_vectors = min(num_msix_req, 5821 instance->msix_vectors); 5822 5823 i = __megasas_alloc_irq_vectors(instance); 5824 5825 } 5826 5827 dev_info(&instance->pdev->dev, 5828 "requested/available msix %d/%d\n", instance->msix_vectors, i); 5829 5830 if (i > 0) 5831 instance->msix_vectors = i; 5832 else 5833 instance->msix_vectors = 0; 5834 5835 if (instance->smp_affinity_enable) 5836 megasas_set_high_iops_queue_affinity_hint(instance); 5837 } 5838 5839 /** 5840 * megasas_init_fw - Initializes the FW 5841 * @instance: Adapter soft state 5842 * 5843 * This is the main function for initializing firmware 5844 */ 5845 5846 static int megasas_init_fw(struct megasas_instance *instance) 5847 { 5848 u32 max_sectors_1; 5849 u32 max_sectors_2, tmp_sectors, msix_enable; 5850 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; 5851 resource_size_t base_addr; 5852 void *base_addr_phys; 5853 struct megasas_ctrl_info *ctrl_info = NULL; 5854 unsigned long bar_list; 5855 int i, j, loop; 5856 struct IOV_111 *iovPtr; 5857 struct fusion_context *fusion; 5858 bool intr_coalescing; 5859 unsigned int num_msix_req; 5860 u16 lnksta, speed; 5861 5862 fusion = instance->ctrl_context; 5863 5864 /* Find first memory bar */ 5865 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 5866 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 5867 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 5868 "megasas: LSI")) { 5869 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 5870 return -EBUSY; 5871 } 5872 5873 base_addr = pci_resource_start(instance->pdev, instance->bar); 5874 instance->reg_set = ioremap_nocache(base_addr, 8192); 5875 5876 if (!instance->reg_set) { 5877 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 5878 goto fail_ioremap; 5879 } 5880 5881 base_addr_phys = &base_addr; 5882 dev_printk(KERN_DEBUG, &instance->pdev->dev, 5883 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", 5884 instance->bar, base_addr_phys, instance->reg_set); 5885 5886 if (instance->adapter_type != MFI_SERIES) 5887 instance->instancet = &megasas_instance_template_fusion; 5888 else { 5889 switch (instance->pdev->device) { 5890 case PCI_DEVICE_ID_LSI_SAS1078R: 5891 case PCI_DEVICE_ID_LSI_SAS1078DE: 5892 instance->instancet = &megasas_instance_template_ppc; 5893 break; 5894 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 5895 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 5896 instance->instancet = &megasas_instance_template_gen2; 5897 break; 5898 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 5899 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 5900 instance->instancet = &megasas_instance_template_skinny; 5901 break; 5902 case PCI_DEVICE_ID_LSI_SAS1064R: 5903 case PCI_DEVICE_ID_DELL_PERC5: 5904 default: 5905 instance->instancet = &megasas_instance_template_xscale; 5906 instance->pd_list_not_supported = 1; 5907 break; 5908 } 5909 } 5910 5911 if (megasas_transition_to_ready(instance, 0)) { 5912 dev_info(&instance->pdev->dev, 5913 "Failed to transition controller to ready from %s!\n", 5914 __func__); 5915 if (instance->adapter_type != MFI_SERIES) { 5916 status_reg = instance->instancet->read_fw_status_reg( 5917 instance); 5918 if (status_reg & MFI_RESET_ADAPTER) { 5919 if (megasas_adp_reset_wait_for_ready 5920 (instance, true, 0) == FAILED) 5921 goto fail_ready_state; 5922 } else { 5923 goto fail_ready_state; 5924 } 5925 } else { 5926 atomic_set(&instance->fw_reset_no_pci_access, 1); 5927 instance->instancet->adp_reset 5928 (instance, instance->reg_set); 5929 atomic_set(&instance->fw_reset_no_pci_access, 0); 5930 5931 /*waiting for about 30 second before retry*/ 5932 ssleep(30); 5933 5934 if (megasas_transition_to_ready(instance, 0)) 5935 goto fail_ready_state; 5936 } 5937 5938 dev_info(&instance->pdev->dev, 5939 "FW restarted successfully from %s!\n", 5940 __func__); 5941 } 5942 5943 megasas_init_ctrl_params(instance); 5944 5945 if (megasas_set_dma_mask(instance)) 5946 goto fail_ready_state; 5947 5948 if (megasas_alloc_ctrl_mem(instance)) 5949 goto fail_alloc_dma_buf; 5950 5951 if (megasas_alloc_ctrl_dma_buffers(instance)) 5952 goto fail_alloc_dma_buf; 5953 5954 fusion = instance->ctrl_context; 5955 5956 if (instance->adapter_type >= VENTURA_SERIES) { 5957 scratch_pad_2 = 5958 megasas_readl(instance, 5959 &instance->reg_set->outbound_scratch_pad_2); 5960 instance->max_raid_mapsize = ((scratch_pad_2 >> 5961 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 5962 MR_MAX_RAID_MAP_SIZE_MASK); 5963 } 5964 5965 instance->enable_sdev_max_qd = enable_sdev_max_qd; 5966 5967 switch (instance->adapter_type) { 5968 case VENTURA_SERIES: 5969 fusion->pcie_bw_limitation = true; 5970 break; 5971 case AERO_SERIES: 5972 fusion->r56_div_offload = true; 5973 break; 5974 default: 5975 break; 5976 } 5977 5978 /* Check if MSI-X is supported while in ready state */ 5979 msix_enable = (instance->instancet->read_fw_status_reg(instance) & 5980 0x4000000) >> 0x1a; 5981 if (msix_enable && !msix_disable) { 5982 5983 scratch_pad_1 = megasas_readl 5984 (instance, &instance->reg_set->outbound_scratch_pad_1); 5985 /* Check max MSI-X vectors */ 5986 if (fusion) { 5987 if (instance->adapter_type == THUNDERBOLT_SERIES) { 5988 /* Thunderbolt Series*/ 5989 instance->msix_vectors = (scratch_pad_1 5990 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 5991 } else { 5992 instance->msix_vectors = ((scratch_pad_1 5993 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 5994 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 5995 5996 /* 5997 * For Invader series, > 8 MSI-x vectors 5998 * supported by FW/HW implies combined 5999 * reply queue mode is enabled. 6000 * For Ventura series, > 16 MSI-x vectors 6001 * supported by FW/HW implies combined 6002 * reply queue mode is enabled. 6003 */ 6004 switch (instance->adapter_type) { 6005 case INVADER_SERIES: 6006 if (instance->msix_vectors > 8) 6007 instance->msix_combined = true; 6008 break; 6009 case AERO_SERIES: 6010 case VENTURA_SERIES: 6011 if (instance->msix_vectors > 16) 6012 instance->msix_combined = true; 6013 break; 6014 } 6015 6016 if (rdpq_enable) 6017 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? 6018 1 : 0; 6019 6020 if (instance->adapter_type >= INVADER_SERIES && 6021 !instance->msix_combined) { 6022 instance->msix_load_balance = true; 6023 instance->smp_affinity_enable = false; 6024 } 6025 6026 /* Save 1-15 reply post index address to local memory 6027 * Index 0 is already saved from reg offset 6028 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 6029 */ 6030 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 6031 instance->reply_post_host_index_addr[loop] = 6032 (u32 __iomem *) 6033 ((u8 __iomem *)instance->reg_set + 6034 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 6035 + (loop * 0x10)); 6036 } 6037 } 6038 6039 dev_info(&instance->pdev->dev, 6040 "firmware supports msix\t: (%d)", 6041 instance->msix_vectors); 6042 if (msix_vectors) 6043 instance->msix_vectors = min(msix_vectors, 6044 instance->msix_vectors); 6045 } else /* MFI adapters */ 6046 instance->msix_vectors = 1; 6047 6048 6049 /* 6050 * For Aero (if some conditions are met), driver will configure a 6051 * few additional reply queues with interrupt coalescing enabled. 6052 * These queues with interrupt coalescing enabled are called 6053 * High IOPS queues and rest of reply queues (based on number of 6054 * logical CPUs) are termed as Low latency queues. 6055 * 6056 * Total Number of reply queues = High IOPS queues + low latency queues 6057 * 6058 * For rest of fusion adapters, 1 additional reply queue will be 6059 * reserved for management commands, rest of reply queues 6060 * (based on number of logical CPUs) will be used for IOs and 6061 * referenced as IO queues. 6062 * Total Number of reply queues = 1 + IO queues 6063 * 6064 * MFI adapters supports single MSI-x so single reply queue 6065 * will be used for IO and management commands. 6066 */ 6067 6068 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? 6069 true : false; 6070 if (intr_coalescing && 6071 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) && 6072 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) 6073 instance->perf_mode = MR_BALANCED_PERF_MODE; 6074 else 6075 instance->perf_mode = MR_LATENCY_PERF_MODE; 6076 6077 6078 if (instance->adapter_type == AERO_SERIES) { 6079 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); 6080 speed = lnksta & PCI_EXP_LNKSTA_CLS; 6081 6082 /* 6083 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate 6084 * in latency perf mode and enable R1 PCI bandwidth algorithm 6085 */ 6086 if (speed < 0x4) { 6087 instance->perf_mode = MR_LATENCY_PERF_MODE; 6088 fusion->pcie_bw_limitation = true; 6089 } 6090 6091 /* 6092 * Performance mode settings provided through module parameter-perf_mode will 6093 * take affect only for: 6094 * 1. Aero family of adapters. 6095 * 2. When user sets module parameter- perf_mode in range of 0-2. 6096 */ 6097 if ((perf_mode >= MR_BALANCED_PERF_MODE) && 6098 (perf_mode <= MR_LATENCY_PERF_MODE)) 6099 instance->perf_mode = perf_mode; 6100 /* 6101 * If intr coalescing is not supported by controller FW, then IOPS 6102 * and Balanced modes are not feasible. 6103 */ 6104 if (!intr_coalescing) 6105 instance->perf_mode = MR_LATENCY_PERF_MODE; 6106 6107 } 6108 6109 if (instance->perf_mode == MR_BALANCED_PERF_MODE) 6110 instance->low_latency_index_start = 6111 MR_HIGH_IOPS_QUEUE_COUNT; 6112 else 6113 instance->low_latency_index_start = 1; 6114 6115 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 6116 6117 instance->msix_vectors = min(num_msix_req, 6118 instance->msix_vectors); 6119 6120 megasas_alloc_irq_vectors(instance); 6121 if (!instance->msix_vectors) 6122 instance->msix_load_balance = false; 6123 } 6124 /* 6125 * MSI-X host index 0 is common for all adapter. 6126 * It is used for all MPT based Adapters. 6127 */ 6128 if (instance->msix_combined) { 6129 instance->reply_post_host_index_addr[0] = 6130 (u32 *)((u8 *)instance->reg_set + 6131 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 6132 } else { 6133 instance->reply_post_host_index_addr[0] = 6134 (u32 *)((u8 *)instance->reg_set + 6135 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 6136 } 6137 6138 if (!instance->msix_vectors) { 6139 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); 6140 if (i < 0) 6141 goto fail_init_adapter; 6142 } 6143 6144 megasas_setup_reply_map(instance); 6145 6146 dev_info(&instance->pdev->dev, 6147 "current msix/online cpus\t: (%d/%d)\n", 6148 instance->msix_vectors, (unsigned int)num_online_cpus()); 6149 dev_info(&instance->pdev->dev, 6150 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 6151 6152 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6153 (unsigned long)instance); 6154 6155 /* 6156 * Below are default value for legacy Firmware. 6157 * non-fusion based controllers 6158 */ 6159 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 6160 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 6161 /* Get operational params, sge flags, send init cmd to controller */ 6162 if (instance->instancet->init_adapter(instance)) 6163 goto fail_init_adapter; 6164 6165 if (instance->adapter_type >= VENTURA_SERIES) { 6166 scratch_pad_3 = 6167 megasas_readl(instance, 6168 &instance->reg_set->outbound_scratch_pad_3); 6169 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= 6170 MR_DEFAULT_NVME_PAGE_SHIFT) 6171 instance->nvme_page_size = 6172 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); 6173 6174 dev_info(&instance->pdev->dev, 6175 "NVME page size\t: (%d)\n", instance->nvme_page_size); 6176 } 6177 6178 if (instance->msix_vectors ? 6179 megasas_setup_irqs_msix(instance, 1) : 6180 megasas_setup_irqs_ioapic(instance)) 6181 goto fail_init_adapter; 6182 6183 if (instance->adapter_type != MFI_SERIES) 6184 megasas_setup_irq_poll(instance); 6185 6186 instance->instancet->enable_intr(instance); 6187 6188 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 6189 6190 megasas_setup_jbod_map(instance); 6191 6192 if (megasas_get_device_list(instance) != SUCCESS) { 6193 dev_err(&instance->pdev->dev, 6194 "%s: megasas_get_device_list failed\n", 6195 __func__); 6196 goto fail_get_ld_pd_list; 6197 } 6198 6199 /* stream detection initialization */ 6200 if (instance->adapter_type >= VENTURA_SERIES) { 6201 fusion->stream_detect_by_ld = 6202 kcalloc(MAX_LOGICAL_DRIVES_EXT, 6203 sizeof(struct LD_STREAM_DETECT *), 6204 GFP_KERNEL); 6205 if (!fusion->stream_detect_by_ld) { 6206 dev_err(&instance->pdev->dev, 6207 "unable to allocate stream detection for pool of LDs\n"); 6208 goto fail_get_ld_pd_list; 6209 } 6210 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 6211 fusion->stream_detect_by_ld[i] = 6212 kzalloc(sizeof(struct LD_STREAM_DETECT), 6213 GFP_KERNEL); 6214 if (!fusion->stream_detect_by_ld[i]) { 6215 dev_err(&instance->pdev->dev, 6216 "unable to allocate stream detect by LD\n "); 6217 for (j = 0; j < i; ++j) 6218 kfree(fusion->stream_detect_by_ld[j]); 6219 kfree(fusion->stream_detect_by_ld); 6220 fusion->stream_detect_by_ld = NULL; 6221 goto fail_get_ld_pd_list; 6222 } 6223 fusion->stream_detect_by_ld[i]->mru_bit_map 6224 = MR_STREAM_BITMAP; 6225 } 6226 } 6227 6228 /* 6229 * Compute the max allowed sectors per IO: The controller info has two 6230 * limits on max sectors. Driver should use the minimum of these two. 6231 * 6232 * 1 << stripe_sz_ops.min = max sectors per strip 6233 * 6234 * Note that older firmwares ( < FW ver 30) didn't report information 6235 * to calculate max_sectors_1. So the number ended up as zero always. 6236 */ 6237 tmp_sectors = 0; 6238 ctrl_info = instance->ctrl_info_buf; 6239 6240 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 6241 le16_to_cpu(ctrl_info->max_strips_per_io); 6242 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 6243 6244 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 6245 6246 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 6247 instance->passive = ctrl_info->cluster.passive; 6248 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 6249 instance->UnevenSpanSupport = 6250 ctrl_info->adapterOperations2.supportUnevenSpans; 6251 if (instance->UnevenSpanSupport) { 6252 struct fusion_context *fusion = instance->ctrl_context; 6253 if (MR_ValidateMapInfo(instance, instance->map_id)) 6254 fusion->fast_path_io = 1; 6255 else 6256 fusion->fast_path_io = 0; 6257 6258 } 6259 if (ctrl_info->host_interface.SRIOV) { 6260 instance->requestorId = ctrl_info->iov.requestorId; 6261 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 6262 if (!ctrl_info->adapterOperations2.activePassive) 6263 instance->PlasmaFW111 = 1; 6264 6265 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 6266 instance->PlasmaFW111 ? "1.11" : "new"); 6267 6268 if (instance->PlasmaFW111) { 6269 iovPtr = (struct IOV_111 *) 6270 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 6271 instance->requestorId = iovPtr->requestorId; 6272 } 6273 } 6274 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 6275 instance->requestorId); 6276 } 6277 6278 instance->crash_dump_fw_support = 6279 ctrl_info->adapterOperations3.supportCrashDump; 6280 instance->crash_dump_drv_support = 6281 (instance->crash_dump_fw_support && 6282 instance->crash_dump_buf); 6283 if (instance->crash_dump_drv_support) 6284 megasas_set_crash_dump_params(instance, 6285 MR_CRASH_BUF_TURN_OFF); 6286 6287 else { 6288 if (instance->crash_dump_buf) 6289 dma_free_coherent(&instance->pdev->dev, 6290 CRASH_DMA_BUF_SIZE, 6291 instance->crash_dump_buf, 6292 instance->crash_dump_h); 6293 instance->crash_dump_buf = NULL; 6294 } 6295 6296 if (instance->snapdump_wait_time) { 6297 megasas_get_snapdump_properties(instance); 6298 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", 6299 instance->snapdump_wait_time); 6300 } 6301 6302 dev_info(&instance->pdev->dev, 6303 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 6304 le16_to_cpu(ctrl_info->pci.vendor_id), 6305 le16_to_cpu(ctrl_info->pci.device_id), 6306 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 6307 le16_to_cpu(ctrl_info->pci.sub_device_id)); 6308 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 6309 instance->UnevenSpanSupport ? "yes" : "no"); 6310 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 6311 instance->crash_dump_drv_support ? "yes" : "no"); 6312 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", 6313 instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); 6314 6315 instance->max_sectors_per_req = instance->max_num_sge * 6316 SGE_BUFFER_SIZE / 512; 6317 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 6318 instance->max_sectors_per_req = tmp_sectors; 6319 6320 /* Check for valid throttlequeuedepth module parameter */ 6321 if (throttlequeuedepth && 6322 throttlequeuedepth <= instance->max_scsi_cmds) 6323 instance->throttlequeuedepth = throttlequeuedepth; 6324 else 6325 instance->throttlequeuedepth = 6326 MEGASAS_THROTTLE_QUEUE_DEPTH; 6327 6328 if ((resetwaittime < 1) || 6329 (resetwaittime > MEGASAS_RESET_WAIT_TIME)) 6330 resetwaittime = MEGASAS_RESET_WAIT_TIME; 6331 6332 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 6333 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 6334 6335 /* Launch SR-IOV heartbeat timer */ 6336 if (instance->requestorId) { 6337 if (!megasas_sriov_start_heartbeat(instance, 1)) { 6338 megasas_start_timer(instance); 6339 } else { 6340 instance->skip_heartbeat_timer_del = 1; 6341 goto fail_get_ld_pd_list; 6342 } 6343 } 6344 6345 /* 6346 * Create and start watchdog thread which will monitor 6347 * controller state every 1 sec and trigger OCR when 6348 * it enters fault state 6349 */ 6350 if (instance->adapter_type != MFI_SERIES) 6351 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 6352 goto fail_start_watchdog; 6353 6354 return 0; 6355 6356 fail_start_watchdog: 6357 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6358 del_timer_sync(&instance->sriov_heartbeat_timer); 6359 fail_get_ld_pd_list: 6360 instance->instancet->disable_intr(instance); 6361 megasas_destroy_irqs(instance); 6362 fail_init_adapter: 6363 if (instance->msix_vectors) 6364 pci_free_irq_vectors(instance->pdev); 6365 instance->msix_vectors = 0; 6366 fail_alloc_dma_buf: 6367 megasas_free_ctrl_dma_buffers(instance); 6368 megasas_free_ctrl_mem(instance); 6369 fail_ready_state: 6370 iounmap(instance->reg_set); 6371 6372 fail_ioremap: 6373 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6374 6375 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6376 __func__, __LINE__); 6377 return -EINVAL; 6378 } 6379 6380 /** 6381 * megasas_release_mfi - Reverses the FW initialization 6382 * @instance: Adapter soft state 6383 */ 6384 static void megasas_release_mfi(struct megasas_instance *instance) 6385 { 6386 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 6387 6388 if (instance->reply_queue) 6389 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 6390 instance->reply_queue, instance->reply_queue_h); 6391 6392 megasas_free_cmds(instance); 6393 6394 iounmap(instance->reg_set); 6395 6396 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6397 } 6398 6399 /** 6400 * megasas_get_seq_num - Gets latest event sequence numbers 6401 * @instance: Adapter soft state 6402 * @eli: FW event log sequence numbers information 6403 * 6404 * FW maintains a log of all events in a non-volatile area. Upper layers would 6405 * usually find out the latest sequence number of the events, the seq number at 6406 * the boot etc. They would "read" all the events below the latest seq number 6407 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 6408 * number), they would subsribe to AEN (asynchronous event notification) and 6409 * wait for the events to happen. 6410 */ 6411 static int 6412 megasas_get_seq_num(struct megasas_instance *instance, 6413 struct megasas_evt_log_info *eli) 6414 { 6415 struct megasas_cmd *cmd; 6416 struct megasas_dcmd_frame *dcmd; 6417 struct megasas_evt_log_info *el_info; 6418 dma_addr_t el_info_h = 0; 6419 int ret; 6420 6421 cmd = megasas_get_cmd(instance); 6422 6423 if (!cmd) { 6424 return -ENOMEM; 6425 } 6426 6427 dcmd = &cmd->frame->dcmd; 6428 el_info = dma_alloc_coherent(&instance->pdev->dev, 6429 sizeof(struct megasas_evt_log_info), 6430 &el_info_h, GFP_KERNEL); 6431 if (!el_info) { 6432 megasas_return_cmd(instance, cmd); 6433 return -ENOMEM; 6434 } 6435 6436 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6437 6438 dcmd->cmd = MFI_CMD_DCMD; 6439 dcmd->cmd_status = 0x0; 6440 dcmd->sge_count = 1; 6441 dcmd->flags = MFI_FRAME_DIR_READ; 6442 dcmd->timeout = 0; 6443 dcmd->pad_0 = 0; 6444 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 6445 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 6446 6447 megasas_set_dma_settings(instance, dcmd, el_info_h, 6448 sizeof(struct megasas_evt_log_info)); 6449 6450 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 6451 if (ret != DCMD_SUCCESS) { 6452 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6453 __func__, __LINE__); 6454 goto dcmd_failed; 6455 } 6456 6457 /* 6458 * Copy the data back into callers buffer 6459 */ 6460 eli->newest_seq_num = el_info->newest_seq_num; 6461 eli->oldest_seq_num = el_info->oldest_seq_num; 6462 eli->clear_seq_num = el_info->clear_seq_num; 6463 eli->shutdown_seq_num = el_info->shutdown_seq_num; 6464 eli->boot_seq_num = el_info->boot_seq_num; 6465 6466 dcmd_failed: 6467 dma_free_coherent(&instance->pdev->dev, 6468 sizeof(struct megasas_evt_log_info), 6469 el_info, el_info_h); 6470 6471 megasas_return_cmd(instance, cmd); 6472 6473 return ret; 6474 } 6475 6476 /** 6477 * megasas_register_aen - Registers for asynchronous event notification 6478 * @instance: Adapter soft state 6479 * @seq_num: The starting sequence number 6480 * @class_locale: Class of the event 6481 * 6482 * This function subscribes for AEN for events beyond the @seq_num. It requests 6483 * to be notified if and only if the event is of type @class_locale 6484 */ 6485 static int 6486 megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 6487 u32 class_locale_word) 6488 { 6489 int ret_val; 6490 struct megasas_cmd *cmd; 6491 struct megasas_dcmd_frame *dcmd; 6492 union megasas_evt_class_locale curr_aen; 6493 union megasas_evt_class_locale prev_aen; 6494 6495 /* 6496 * If there an AEN pending already (aen_cmd), check if the 6497 * class_locale of that pending AEN is inclusive of the new 6498 * AEN request we currently have. If it is, then we don't have 6499 * to do anything. In other words, whichever events the current 6500 * AEN request is subscribing to, have already been subscribed 6501 * to. 6502 * 6503 * If the old_cmd is _not_ inclusive, then we have to abort 6504 * that command, form a class_locale that is superset of both 6505 * old and current and re-issue to the FW 6506 */ 6507 6508 curr_aen.word = class_locale_word; 6509 6510 if (instance->aen_cmd) { 6511 6512 prev_aen.word = 6513 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 6514 6515 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || 6516 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { 6517 dev_info(&instance->pdev->dev, 6518 "%s %d out of range class %d send by application\n", 6519 __func__, __LINE__, curr_aen.members.class); 6520 return 0; 6521 } 6522 6523 /* 6524 * A class whose enum value is smaller is inclusive of all 6525 * higher values. If a PROGRESS (= -1) was previously 6526 * registered, then a new registration requests for higher 6527 * classes need not be sent to FW. They are automatically 6528 * included. 6529 * 6530 * Locale numbers don't have such hierarchy. They are bitmap 6531 * values 6532 */ 6533 if ((prev_aen.members.class <= curr_aen.members.class) && 6534 !((prev_aen.members.locale & curr_aen.members.locale) ^ 6535 curr_aen.members.locale)) { 6536 /* 6537 * Previously issued event registration includes 6538 * current request. Nothing to do. 6539 */ 6540 return 0; 6541 } else { 6542 curr_aen.members.locale |= prev_aen.members.locale; 6543 6544 if (prev_aen.members.class < curr_aen.members.class) 6545 curr_aen.members.class = prev_aen.members.class; 6546 6547 instance->aen_cmd->abort_aen = 1; 6548 ret_val = megasas_issue_blocked_abort_cmd(instance, 6549 instance-> 6550 aen_cmd, 30); 6551 6552 if (ret_val) { 6553 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 6554 "previous AEN command\n"); 6555 return ret_val; 6556 } 6557 } 6558 } 6559 6560 cmd = megasas_get_cmd(instance); 6561 6562 if (!cmd) 6563 return -ENOMEM; 6564 6565 dcmd = &cmd->frame->dcmd; 6566 6567 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 6568 6569 /* 6570 * Prepare DCMD for aen registration 6571 */ 6572 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6573 6574 dcmd->cmd = MFI_CMD_DCMD; 6575 dcmd->cmd_status = 0x0; 6576 dcmd->sge_count = 1; 6577 dcmd->flags = MFI_FRAME_DIR_READ; 6578 dcmd->timeout = 0; 6579 dcmd->pad_0 = 0; 6580 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 6581 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 6582 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 6583 instance->last_seq_num = seq_num; 6584 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 6585 6586 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, 6587 sizeof(struct megasas_evt_detail)); 6588 6589 if (instance->aen_cmd != NULL) { 6590 megasas_return_cmd(instance, cmd); 6591 return 0; 6592 } 6593 6594 /* 6595 * Store reference to the cmd used to register for AEN. When an 6596 * application wants us to register for AEN, we have to abort this 6597 * cmd and re-register with a new EVENT LOCALE supplied by that app 6598 */ 6599 instance->aen_cmd = cmd; 6600 6601 /* 6602 * Issue the aen registration frame 6603 */ 6604 instance->instancet->issue_dcmd(instance, cmd); 6605 6606 return 0; 6607 } 6608 6609 /* megasas_get_target_prop - Send DCMD with below details to firmware. 6610 * 6611 * This DCMD will fetch few properties of LD/system PD defined 6612 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 6613 * 6614 * DCMD send by drivers whenever new target is added to the OS. 6615 * 6616 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 6617 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 6618 * 0 = system PD, 1 = LD. 6619 * dcmd.mbox.s[1] - TargetID for LD/system PD. 6620 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 6621 * 6622 * @instance: Adapter soft state 6623 * @sdev: OS provided scsi device 6624 * 6625 * Returns 0 on success non-zero on failure. 6626 */ 6627 int 6628 megasas_get_target_prop(struct megasas_instance *instance, 6629 struct scsi_device *sdev) 6630 { 6631 int ret; 6632 struct megasas_cmd *cmd; 6633 struct megasas_dcmd_frame *dcmd; 6634 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 6635 sdev->id; 6636 6637 cmd = megasas_get_cmd(instance); 6638 6639 if (!cmd) { 6640 dev_err(&instance->pdev->dev, 6641 "Failed to get cmd %s\n", __func__); 6642 return -ENOMEM; 6643 } 6644 6645 dcmd = &cmd->frame->dcmd; 6646 6647 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 6648 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6649 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 6650 6651 dcmd->mbox.s[1] = cpu_to_le16(targetId); 6652 dcmd->cmd = MFI_CMD_DCMD; 6653 dcmd->cmd_status = 0xFF; 6654 dcmd->sge_count = 1; 6655 dcmd->flags = MFI_FRAME_DIR_READ; 6656 dcmd->timeout = 0; 6657 dcmd->pad_0 = 0; 6658 dcmd->data_xfer_len = 6659 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 6660 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 6661 6662 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, 6663 sizeof(struct MR_TARGET_PROPERTIES)); 6664 6665 if ((instance->adapter_type != MFI_SERIES) && 6666 !instance->mask_interrupts) 6667 ret = megasas_issue_blocked_cmd(instance, 6668 cmd, MFI_IO_TIMEOUT_SECS); 6669 else 6670 ret = megasas_issue_polled(instance, cmd); 6671 6672 switch (ret) { 6673 case DCMD_TIMEOUT: 6674 switch (dcmd_timeout_ocr_possible(instance)) { 6675 case INITIATE_OCR: 6676 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 6677 mutex_unlock(&instance->reset_mutex); 6678 megasas_reset_fusion(instance->host, 6679 MFI_IO_TIMEOUT_OCR); 6680 mutex_lock(&instance->reset_mutex); 6681 break; 6682 case KILL_ADAPTER: 6683 megaraid_sas_kill_hba(instance); 6684 break; 6685 case IGNORE_TIMEOUT: 6686 dev_info(&instance->pdev->dev, 6687 "Ignore DCMD timeout: %s %d\n", 6688 __func__, __LINE__); 6689 break; 6690 } 6691 break; 6692 6693 default: 6694 megasas_return_cmd(instance, cmd); 6695 } 6696 if (ret != DCMD_SUCCESS) 6697 dev_err(&instance->pdev->dev, 6698 "return from %s %d return value %d\n", 6699 __func__, __LINE__, ret); 6700 6701 return ret; 6702 } 6703 6704 /** 6705 * megasas_start_aen - Subscribes to AEN during driver load time 6706 * @instance: Adapter soft state 6707 */ 6708 static int megasas_start_aen(struct megasas_instance *instance) 6709 { 6710 struct megasas_evt_log_info eli; 6711 union megasas_evt_class_locale class_locale; 6712 6713 /* 6714 * Get the latest sequence number from FW 6715 */ 6716 memset(&eli, 0, sizeof(eli)); 6717 6718 if (megasas_get_seq_num(instance, &eli)) 6719 return -1; 6720 6721 /* 6722 * Register AEN with FW for latest sequence number plus 1 6723 */ 6724 class_locale.members.reserved = 0; 6725 class_locale.members.locale = MR_EVT_LOCALE_ALL; 6726 class_locale.members.class = MR_EVT_CLASS_DEBUG; 6727 6728 return megasas_register_aen(instance, 6729 le32_to_cpu(eli.newest_seq_num) + 1, 6730 class_locale.word); 6731 } 6732 6733 /** 6734 * megasas_io_attach - Attaches this driver to SCSI mid-layer 6735 * @instance: Adapter soft state 6736 */ 6737 static int megasas_io_attach(struct megasas_instance *instance) 6738 { 6739 struct Scsi_Host *host = instance->host; 6740 6741 /* 6742 * Export parameters required by SCSI mid-layer 6743 */ 6744 host->unique_id = instance->unique_id; 6745 host->can_queue = instance->max_scsi_cmds; 6746 host->this_id = instance->init_id; 6747 host->sg_tablesize = instance->max_num_sge; 6748 6749 if (instance->fw_support_ieee) 6750 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 6751 6752 /* 6753 * Check if the module parameter value for max_sectors can be used 6754 */ 6755 if (max_sectors && max_sectors < instance->max_sectors_per_req) 6756 instance->max_sectors_per_req = max_sectors; 6757 else { 6758 if (max_sectors) { 6759 if (((instance->pdev->device == 6760 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 6761 (instance->pdev->device == 6762 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 6763 (max_sectors <= MEGASAS_MAX_SECTORS)) { 6764 instance->max_sectors_per_req = max_sectors; 6765 } else { 6766 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 6767 "and <= %d (or < 1MB for GEN2 controller)\n", 6768 instance->max_sectors_per_req); 6769 } 6770 } 6771 } 6772 6773 host->max_sectors = instance->max_sectors_per_req; 6774 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 6775 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 6776 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 6777 host->max_lun = MEGASAS_MAX_LUN; 6778 host->max_cmd_len = 16; 6779 6780 /* 6781 * Notify the mid-layer about the new controller 6782 */ 6783 if (scsi_add_host(host, &instance->pdev->dev)) { 6784 dev_err(&instance->pdev->dev, 6785 "Failed to add host from %s %d\n", 6786 __func__, __LINE__); 6787 return -ENODEV; 6788 } 6789 6790 return 0; 6791 } 6792 6793 /** 6794 * megasas_set_dma_mask - Set DMA mask for supported controllers 6795 * 6796 * @instance: Adapter soft state 6797 * Description: 6798 * 6799 * For Ventura, driver/FW will operate in 63bit DMA addresses. 6800 * 6801 * For invader- 6802 * By default, driver/FW will operate in 32bit DMA addresses 6803 * for consistent DMA mapping but if 32 bit consistent 6804 * DMA mask fails, driver will try with 63 bit consistent 6805 * mask provided FW is true 63bit DMA capable 6806 * 6807 * For older controllers(Thunderbolt and MFI based adapters)- 6808 * driver/FW will operate in 32 bit consistent DMA addresses. 6809 */ 6810 static int 6811 megasas_set_dma_mask(struct megasas_instance *instance) 6812 { 6813 u64 consistent_mask; 6814 struct pci_dev *pdev; 6815 u32 scratch_pad_1; 6816 6817 pdev = instance->pdev; 6818 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? 6819 DMA_BIT_MASK(63) : DMA_BIT_MASK(32); 6820 6821 if (IS_DMA64) { 6822 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && 6823 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6824 goto fail_set_dma_mask; 6825 6826 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && 6827 (dma_set_coherent_mask(&pdev->dev, consistent_mask) && 6828 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { 6829 /* 6830 * If 32 bit DMA mask fails, then try for 64 bit mask 6831 * for FW capable of handling 64 bit DMA. 6832 */ 6833 scratch_pad_1 = megasas_readl 6834 (instance, &instance->reg_set->outbound_scratch_pad_1); 6835 6836 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) 6837 goto fail_set_dma_mask; 6838 else if (dma_set_mask_and_coherent(&pdev->dev, 6839 DMA_BIT_MASK(63))) 6840 goto fail_set_dma_mask; 6841 } 6842 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6843 goto fail_set_dma_mask; 6844 6845 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) 6846 instance->consistent_mask_64bit = false; 6847 else 6848 instance->consistent_mask_64bit = true; 6849 6850 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", 6851 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), 6852 (instance->consistent_mask_64bit ? "63" : "32")); 6853 6854 return 0; 6855 6856 fail_set_dma_mask: 6857 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 6858 return -1; 6859 6860 } 6861 6862 /* 6863 * megasas_set_adapter_type - Set adapter type. 6864 * Supported controllers can be divided in 6865 * different categories- 6866 * enum MR_ADAPTER_TYPE { 6867 * MFI_SERIES = 1, 6868 * THUNDERBOLT_SERIES = 2, 6869 * INVADER_SERIES = 3, 6870 * VENTURA_SERIES = 4, 6871 * AERO_SERIES = 5, 6872 * }; 6873 * @instance: Adapter soft state 6874 * return: void 6875 */ 6876 static inline void megasas_set_adapter_type(struct megasas_instance *instance) 6877 { 6878 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && 6879 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { 6880 instance->adapter_type = MFI_SERIES; 6881 } else { 6882 switch (instance->pdev->device) { 6883 case PCI_DEVICE_ID_LSI_AERO_10E1: 6884 case PCI_DEVICE_ID_LSI_AERO_10E2: 6885 case PCI_DEVICE_ID_LSI_AERO_10E5: 6886 case PCI_DEVICE_ID_LSI_AERO_10E6: 6887 instance->adapter_type = AERO_SERIES; 6888 break; 6889 case PCI_DEVICE_ID_LSI_VENTURA: 6890 case PCI_DEVICE_ID_LSI_CRUSADER: 6891 case PCI_DEVICE_ID_LSI_HARPOON: 6892 case PCI_DEVICE_ID_LSI_TOMCAT: 6893 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 6894 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 6895 instance->adapter_type = VENTURA_SERIES; 6896 break; 6897 case PCI_DEVICE_ID_LSI_FUSION: 6898 case PCI_DEVICE_ID_LSI_PLASMA: 6899 instance->adapter_type = THUNDERBOLT_SERIES; 6900 break; 6901 case PCI_DEVICE_ID_LSI_INVADER: 6902 case PCI_DEVICE_ID_LSI_INTRUDER: 6903 case PCI_DEVICE_ID_LSI_INTRUDER_24: 6904 case PCI_DEVICE_ID_LSI_CUTLASS_52: 6905 case PCI_DEVICE_ID_LSI_CUTLASS_53: 6906 case PCI_DEVICE_ID_LSI_FURY: 6907 instance->adapter_type = INVADER_SERIES; 6908 break; 6909 default: /* For all other supported controllers */ 6910 instance->adapter_type = MFI_SERIES; 6911 break; 6912 } 6913 } 6914 } 6915 6916 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) 6917 { 6918 instance->producer = dma_alloc_coherent(&instance->pdev->dev, 6919 sizeof(u32), &instance->producer_h, GFP_KERNEL); 6920 instance->consumer = dma_alloc_coherent(&instance->pdev->dev, 6921 sizeof(u32), &instance->consumer_h, GFP_KERNEL); 6922 6923 if (!instance->producer || !instance->consumer) { 6924 dev_err(&instance->pdev->dev, 6925 "Failed to allocate memory for producer, consumer\n"); 6926 return -1; 6927 } 6928 6929 *instance->producer = 0; 6930 *instance->consumer = 0; 6931 return 0; 6932 } 6933 6934 /** 6935 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data 6936 * structures which are not common across MFI 6937 * adapters and fusion adapters. 6938 * For MFI based adapters, allocate producer and 6939 * consumer buffers. For fusion adapters, allocate 6940 * memory for fusion context. 6941 * @instance: Adapter soft state 6942 * return: 0 for SUCCESS 6943 */ 6944 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) 6945 { 6946 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), 6947 GFP_KERNEL); 6948 if (!instance->reply_map) 6949 return -ENOMEM; 6950 6951 switch (instance->adapter_type) { 6952 case MFI_SERIES: 6953 if (megasas_alloc_mfi_ctrl_mem(instance)) 6954 goto fail; 6955 break; 6956 case AERO_SERIES: 6957 case VENTURA_SERIES: 6958 case THUNDERBOLT_SERIES: 6959 case INVADER_SERIES: 6960 if (megasas_alloc_fusion_context(instance)) 6961 goto fail; 6962 break; 6963 } 6964 6965 return 0; 6966 fail: 6967 kfree(instance->reply_map); 6968 instance->reply_map = NULL; 6969 return -ENOMEM; 6970 } 6971 6972 /* 6973 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and 6974 * producer, consumer buffers for MFI adapters 6975 * 6976 * @instance - Adapter soft instance 6977 * 6978 */ 6979 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) 6980 { 6981 kfree(instance->reply_map); 6982 if (instance->adapter_type == MFI_SERIES) { 6983 if (instance->producer) 6984 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 6985 instance->producer, 6986 instance->producer_h); 6987 if (instance->consumer) 6988 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 6989 instance->consumer, 6990 instance->consumer_h); 6991 } else { 6992 megasas_free_fusion_context(instance); 6993 } 6994 } 6995 6996 /** 6997 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during 6998 * driver load time 6999 * 7000 * @instance- Adapter soft instance 7001 * @return- O for SUCCESS 7002 */ 7003 static inline 7004 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) 7005 { 7006 struct pci_dev *pdev = instance->pdev; 7007 struct fusion_context *fusion = instance->ctrl_context; 7008 7009 instance->evt_detail = dma_alloc_coherent(&pdev->dev, 7010 sizeof(struct megasas_evt_detail), 7011 &instance->evt_detail_h, GFP_KERNEL); 7012 7013 if (!instance->evt_detail) { 7014 dev_err(&instance->pdev->dev, 7015 "Failed to allocate event detail buffer\n"); 7016 return -ENOMEM; 7017 } 7018 7019 if (fusion) { 7020 fusion->ioc_init_request = 7021 dma_alloc_coherent(&pdev->dev, 7022 sizeof(struct MPI2_IOC_INIT_REQUEST), 7023 &fusion->ioc_init_request_phys, 7024 GFP_KERNEL); 7025 7026 if (!fusion->ioc_init_request) { 7027 dev_err(&pdev->dev, 7028 "Failed to allocate PD list buffer\n"); 7029 return -ENOMEM; 7030 } 7031 7032 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, 7033 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7034 &instance->snapdump_prop_h, GFP_KERNEL); 7035 7036 if (!instance->snapdump_prop) 7037 dev_err(&pdev->dev, 7038 "Failed to allocate snapdump properties buffer\n"); 7039 7040 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, 7041 HOST_DEVICE_LIST_SZ, 7042 &instance->host_device_list_buf_h, 7043 GFP_KERNEL); 7044 7045 if (!instance->host_device_list_buf) { 7046 dev_err(&pdev->dev, 7047 "Failed to allocate targetid list buffer\n"); 7048 return -ENOMEM; 7049 } 7050 7051 } 7052 7053 instance->pd_list_buf = 7054 dma_alloc_coherent(&pdev->dev, 7055 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7056 &instance->pd_list_buf_h, GFP_KERNEL); 7057 7058 if (!instance->pd_list_buf) { 7059 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); 7060 return -ENOMEM; 7061 } 7062 7063 instance->ctrl_info_buf = 7064 dma_alloc_coherent(&pdev->dev, 7065 sizeof(struct megasas_ctrl_info), 7066 &instance->ctrl_info_buf_h, GFP_KERNEL); 7067 7068 if (!instance->ctrl_info_buf) { 7069 dev_err(&pdev->dev, 7070 "Failed to allocate controller info buffer\n"); 7071 return -ENOMEM; 7072 } 7073 7074 instance->ld_list_buf = 7075 dma_alloc_coherent(&pdev->dev, 7076 sizeof(struct MR_LD_LIST), 7077 &instance->ld_list_buf_h, GFP_KERNEL); 7078 7079 if (!instance->ld_list_buf) { 7080 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); 7081 return -ENOMEM; 7082 } 7083 7084 instance->ld_targetid_list_buf = 7085 dma_alloc_coherent(&pdev->dev, 7086 sizeof(struct MR_LD_TARGETID_LIST), 7087 &instance->ld_targetid_list_buf_h, GFP_KERNEL); 7088 7089 if (!instance->ld_targetid_list_buf) { 7090 dev_err(&pdev->dev, 7091 "Failed to allocate LD targetid list buffer\n"); 7092 return -ENOMEM; 7093 } 7094 7095 if (!reset_devices) { 7096 instance->system_info_buf = 7097 dma_alloc_coherent(&pdev->dev, 7098 sizeof(struct MR_DRV_SYSTEM_INFO), 7099 &instance->system_info_h, GFP_KERNEL); 7100 instance->pd_info = 7101 dma_alloc_coherent(&pdev->dev, 7102 sizeof(struct MR_PD_INFO), 7103 &instance->pd_info_h, GFP_KERNEL); 7104 instance->tgt_prop = 7105 dma_alloc_coherent(&pdev->dev, 7106 sizeof(struct MR_TARGET_PROPERTIES), 7107 &instance->tgt_prop_h, GFP_KERNEL); 7108 instance->crash_dump_buf = 7109 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7110 &instance->crash_dump_h, GFP_KERNEL); 7111 7112 if (!instance->system_info_buf) 7113 dev_err(&instance->pdev->dev, 7114 "Failed to allocate system info buffer\n"); 7115 7116 if (!instance->pd_info) 7117 dev_err(&instance->pdev->dev, 7118 "Failed to allocate pd_info buffer\n"); 7119 7120 if (!instance->tgt_prop) 7121 dev_err(&instance->pdev->dev, 7122 "Failed to allocate tgt_prop buffer\n"); 7123 7124 if (!instance->crash_dump_buf) 7125 dev_err(&instance->pdev->dev, 7126 "Failed to allocate crash dump buffer\n"); 7127 } 7128 7129 return 0; 7130 } 7131 7132 /* 7133 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated 7134 * during driver load time 7135 * 7136 * @instance- Adapter soft instance 7137 * 7138 */ 7139 static inline 7140 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) 7141 { 7142 struct pci_dev *pdev = instance->pdev; 7143 struct fusion_context *fusion = instance->ctrl_context; 7144 7145 if (instance->evt_detail) 7146 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), 7147 instance->evt_detail, 7148 instance->evt_detail_h); 7149 7150 if (fusion && fusion->ioc_init_request) 7151 dma_free_coherent(&pdev->dev, 7152 sizeof(struct MPI2_IOC_INIT_REQUEST), 7153 fusion->ioc_init_request, 7154 fusion->ioc_init_request_phys); 7155 7156 if (instance->pd_list_buf) 7157 dma_free_coherent(&pdev->dev, 7158 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7159 instance->pd_list_buf, 7160 instance->pd_list_buf_h); 7161 7162 if (instance->ld_list_buf) 7163 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), 7164 instance->ld_list_buf, 7165 instance->ld_list_buf_h); 7166 7167 if (instance->ld_targetid_list_buf) 7168 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), 7169 instance->ld_targetid_list_buf, 7170 instance->ld_targetid_list_buf_h); 7171 7172 if (instance->ctrl_info_buf) 7173 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), 7174 instance->ctrl_info_buf, 7175 instance->ctrl_info_buf_h); 7176 7177 if (instance->system_info_buf) 7178 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), 7179 instance->system_info_buf, 7180 instance->system_info_h); 7181 7182 if (instance->pd_info) 7183 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), 7184 instance->pd_info, instance->pd_info_h); 7185 7186 if (instance->tgt_prop) 7187 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), 7188 instance->tgt_prop, instance->tgt_prop_h); 7189 7190 if (instance->crash_dump_buf) 7191 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7192 instance->crash_dump_buf, 7193 instance->crash_dump_h); 7194 7195 if (instance->snapdump_prop) 7196 dma_free_coherent(&pdev->dev, 7197 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7198 instance->snapdump_prop, 7199 instance->snapdump_prop_h); 7200 7201 if (instance->host_device_list_buf) 7202 dma_free_coherent(&pdev->dev, 7203 HOST_DEVICE_LIST_SZ, 7204 instance->host_device_list_buf, 7205 instance->host_device_list_buf_h); 7206 7207 } 7208 7209 /* 7210 * megasas_init_ctrl_params - Initialize controller's instance 7211 * parameters before FW init 7212 * @instance - Adapter soft instance 7213 * @return - void 7214 */ 7215 static inline void megasas_init_ctrl_params(struct megasas_instance *instance) 7216 { 7217 instance->fw_crash_state = UNAVAILABLE; 7218 7219 megasas_poll_wait_aen = 0; 7220 instance->issuepend_done = 1; 7221 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 7222 7223 /* 7224 * Initialize locks and queues 7225 */ 7226 INIT_LIST_HEAD(&instance->cmd_pool); 7227 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 7228 7229 atomic_set(&instance->fw_outstanding, 0); 7230 atomic64_set(&instance->total_io_count, 0); 7231 7232 init_waitqueue_head(&instance->int_cmd_wait_q); 7233 init_waitqueue_head(&instance->abort_cmd_wait_q); 7234 7235 spin_lock_init(&instance->crashdump_lock); 7236 spin_lock_init(&instance->mfi_pool_lock); 7237 spin_lock_init(&instance->hba_lock); 7238 spin_lock_init(&instance->stream_lock); 7239 spin_lock_init(&instance->completion_lock); 7240 7241 mutex_init(&instance->reset_mutex); 7242 7243 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 7244 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 7245 instance->flag_ieee = 1; 7246 7247 megasas_dbg_lvl = 0; 7248 instance->flag = 0; 7249 instance->unload = 1; 7250 instance->last_time = 0; 7251 instance->disableOnlineCtrlReset = 1; 7252 instance->UnevenSpanSupport = 0; 7253 instance->smp_affinity_enable = smp_affinity_enable ? true : false; 7254 instance->msix_load_balance = false; 7255 7256 if (instance->adapter_type != MFI_SERIES) 7257 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 7258 else 7259 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 7260 } 7261 7262 /** 7263 * megasas_probe_one - PCI hotplug entry point 7264 * @pdev: PCI device structure 7265 * @id: PCI ids of supported hotplugged adapter 7266 */ 7267 static int megasas_probe_one(struct pci_dev *pdev, 7268 const struct pci_device_id *id) 7269 { 7270 int rval, pos; 7271 struct Scsi_Host *host; 7272 struct megasas_instance *instance; 7273 u16 control = 0; 7274 7275 switch (pdev->device) { 7276 case PCI_DEVICE_ID_LSI_AERO_10E0: 7277 case PCI_DEVICE_ID_LSI_AERO_10E3: 7278 case PCI_DEVICE_ID_LSI_AERO_10E4: 7279 case PCI_DEVICE_ID_LSI_AERO_10E7: 7280 dev_err(&pdev->dev, "Adapter is in non secure mode\n"); 7281 return 1; 7282 case PCI_DEVICE_ID_LSI_AERO_10E1: 7283 case PCI_DEVICE_ID_LSI_AERO_10E5: 7284 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); 7285 break; 7286 } 7287 7288 /* Reset MSI-X in the kdump kernel */ 7289 if (reset_devices) { 7290 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 7291 if (pos) { 7292 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 7293 &control); 7294 if (control & PCI_MSIX_FLAGS_ENABLE) { 7295 dev_info(&pdev->dev, "resetting MSI-X\n"); 7296 pci_write_config_word(pdev, 7297 pos + PCI_MSIX_FLAGS, 7298 control & 7299 ~PCI_MSIX_FLAGS_ENABLE); 7300 } 7301 } 7302 } 7303 7304 /* 7305 * PCI prepping: enable device set bus mastering and dma mask 7306 */ 7307 rval = pci_enable_device_mem(pdev); 7308 7309 if (rval) { 7310 return rval; 7311 } 7312 7313 pci_set_master(pdev); 7314 7315 host = scsi_host_alloc(&megasas_template, 7316 sizeof(struct megasas_instance)); 7317 7318 if (!host) { 7319 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 7320 goto fail_alloc_instance; 7321 } 7322 7323 instance = (struct megasas_instance *)host->hostdata; 7324 memset(instance, 0, sizeof(*instance)); 7325 atomic_set(&instance->fw_reset_no_pci_access, 0); 7326 7327 /* 7328 * Initialize PCI related and misc parameters 7329 */ 7330 instance->pdev = pdev; 7331 instance->host = host; 7332 instance->unique_id = pdev->bus->number << 8 | pdev->devfn; 7333 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 7334 7335 megasas_set_adapter_type(instance); 7336 7337 /* 7338 * Initialize MFI Firmware 7339 */ 7340 if (megasas_init_fw(instance)) 7341 goto fail_init_mfi; 7342 7343 if (instance->requestorId) { 7344 if (instance->PlasmaFW111) { 7345 instance->vf_affiliation_111 = 7346 dma_alloc_coherent(&pdev->dev, 7347 sizeof(struct MR_LD_VF_AFFILIATION_111), 7348 &instance->vf_affiliation_111_h, 7349 GFP_KERNEL); 7350 if (!instance->vf_affiliation_111) 7351 dev_warn(&pdev->dev, "Can't allocate " 7352 "memory for VF affiliation buffer\n"); 7353 } else { 7354 instance->vf_affiliation = 7355 dma_alloc_coherent(&pdev->dev, 7356 (MAX_LOGICAL_DRIVES + 1) * 7357 sizeof(struct MR_LD_VF_AFFILIATION), 7358 &instance->vf_affiliation_h, 7359 GFP_KERNEL); 7360 if (!instance->vf_affiliation) 7361 dev_warn(&pdev->dev, "Can't allocate " 7362 "memory for VF affiliation buffer\n"); 7363 } 7364 } 7365 7366 /* 7367 * Store instance in PCI softstate 7368 */ 7369 pci_set_drvdata(pdev, instance); 7370 7371 /* 7372 * Add this controller to megasas_mgmt_info structure so that it 7373 * can be exported to management applications 7374 */ 7375 megasas_mgmt_info.count++; 7376 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 7377 megasas_mgmt_info.max_index++; 7378 7379 /* 7380 * Register with SCSI mid-layer 7381 */ 7382 if (megasas_io_attach(instance)) 7383 goto fail_io_attach; 7384 7385 instance->unload = 0; 7386 /* 7387 * Trigger SCSI to scan our drives 7388 */ 7389 if (!instance->enable_fw_dev_list || 7390 (instance->host_device_list_buf->count > 0)) 7391 scsi_scan_host(host); 7392 7393 /* 7394 * Initiate AEN (Asynchronous Event Notification) 7395 */ 7396 if (megasas_start_aen(instance)) { 7397 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 7398 goto fail_start_aen; 7399 } 7400 7401 megasas_setup_debugfs(instance); 7402 7403 /* Get current SR-IOV LD/VF affiliation */ 7404 if (instance->requestorId) 7405 megasas_get_ld_vf_affiliation(instance, 1); 7406 7407 return 0; 7408 7409 fail_start_aen: 7410 fail_io_attach: 7411 megasas_mgmt_info.count--; 7412 megasas_mgmt_info.max_index--; 7413 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 7414 7415 instance->instancet->disable_intr(instance); 7416 megasas_destroy_irqs(instance); 7417 7418 if (instance->adapter_type != MFI_SERIES) 7419 megasas_release_fusion(instance); 7420 else 7421 megasas_release_mfi(instance); 7422 if (instance->msix_vectors) 7423 pci_free_irq_vectors(instance->pdev); 7424 fail_init_mfi: 7425 scsi_host_put(host); 7426 fail_alloc_instance: 7427 pci_disable_device(pdev); 7428 7429 return -ENODEV; 7430 } 7431 7432 /** 7433 * megasas_flush_cache - Requests FW to flush all its caches 7434 * @instance: Adapter soft state 7435 */ 7436 static void megasas_flush_cache(struct megasas_instance *instance) 7437 { 7438 struct megasas_cmd *cmd; 7439 struct megasas_dcmd_frame *dcmd; 7440 7441 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7442 return; 7443 7444 cmd = megasas_get_cmd(instance); 7445 7446 if (!cmd) 7447 return; 7448 7449 dcmd = &cmd->frame->dcmd; 7450 7451 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7452 7453 dcmd->cmd = MFI_CMD_DCMD; 7454 dcmd->cmd_status = 0x0; 7455 dcmd->sge_count = 0; 7456 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7457 dcmd->timeout = 0; 7458 dcmd->pad_0 = 0; 7459 dcmd->data_xfer_len = 0; 7460 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 7461 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 7462 7463 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7464 != DCMD_SUCCESS) { 7465 dev_err(&instance->pdev->dev, 7466 "return from %s %d\n", __func__, __LINE__); 7467 return; 7468 } 7469 7470 megasas_return_cmd(instance, cmd); 7471 } 7472 7473 /** 7474 * megasas_shutdown_controller - Instructs FW to shutdown the controller 7475 * @instance: Adapter soft state 7476 * @opcode: Shutdown/Hibernate 7477 */ 7478 static void megasas_shutdown_controller(struct megasas_instance *instance, 7479 u32 opcode) 7480 { 7481 struct megasas_cmd *cmd; 7482 struct megasas_dcmd_frame *dcmd; 7483 7484 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7485 return; 7486 7487 cmd = megasas_get_cmd(instance); 7488 7489 if (!cmd) 7490 return; 7491 7492 if (instance->aen_cmd) 7493 megasas_issue_blocked_abort_cmd(instance, 7494 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 7495 if (instance->map_update_cmd) 7496 megasas_issue_blocked_abort_cmd(instance, 7497 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 7498 if (instance->jbod_seq_cmd) 7499 megasas_issue_blocked_abort_cmd(instance, 7500 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 7501 7502 dcmd = &cmd->frame->dcmd; 7503 7504 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7505 7506 dcmd->cmd = MFI_CMD_DCMD; 7507 dcmd->cmd_status = 0x0; 7508 dcmd->sge_count = 0; 7509 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7510 dcmd->timeout = 0; 7511 dcmd->pad_0 = 0; 7512 dcmd->data_xfer_len = 0; 7513 dcmd->opcode = cpu_to_le32(opcode); 7514 7515 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7516 != DCMD_SUCCESS) { 7517 dev_err(&instance->pdev->dev, 7518 "return from %s %d\n", __func__, __LINE__); 7519 return; 7520 } 7521 7522 megasas_return_cmd(instance, cmd); 7523 } 7524 7525 #ifdef CONFIG_PM 7526 /** 7527 * megasas_suspend - driver suspend entry point 7528 * @pdev: PCI device structure 7529 * @state: PCI power state to suspend routine 7530 */ 7531 static int 7532 megasas_suspend(struct pci_dev *pdev, pm_message_t state) 7533 { 7534 struct megasas_instance *instance; 7535 7536 instance = pci_get_drvdata(pdev); 7537 7538 if (!instance) 7539 return 0; 7540 7541 instance->unload = 1; 7542 7543 dev_info(&pdev->dev, "%s is called\n", __func__); 7544 7545 /* Shutdown SR-IOV heartbeat timer */ 7546 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7547 del_timer_sync(&instance->sriov_heartbeat_timer); 7548 7549 /* Stop the FW fault detection watchdog */ 7550 if (instance->adapter_type != MFI_SERIES) 7551 megasas_fusion_stop_watchdog(instance); 7552 7553 megasas_flush_cache(instance); 7554 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 7555 7556 /* cancel the delayed work if this work still in queue */ 7557 if (instance->ev != NULL) { 7558 struct megasas_aen_event *ev = instance->ev; 7559 cancel_delayed_work_sync(&ev->hotplug_work); 7560 instance->ev = NULL; 7561 } 7562 7563 tasklet_kill(&instance->isr_tasklet); 7564 7565 pci_set_drvdata(instance->pdev, instance); 7566 instance->instancet->disable_intr(instance); 7567 7568 megasas_destroy_irqs(instance); 7569 7570 if (instance->msix_vectors) 7571 pci_free_irq_vectors(instance->pdev); 7572 7573 pci_save_state(pdev); 7574 pci_disable_device(pdev); 7575 7576 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 7577 7578 return 0; 7579 } 7580 7581 /** 7582 * megasas_resume- driver resume entry point 7583 * @pdev: PCI device structure 7584 */ 7585 static int 7586 megasas_resume(struct pci_dev *pdev) 7587 { 7588 int rval; 7589 struct Scsi_Host *host; 7590 struct megasas_instance *instance; 7591 int irq_flags = PCI_IRQ_LEGACY; 7592 7593 instance = pci_get_drvdata(pdev); 7594 7595 if (!instance) 7596 return 0; 7597 7598 host = instance->host; 7599 pci_set_power_state(pdev, PCI_D0); 7600 pci_enable_wake(pdev, PCI_D0, 0); 7601 pci_restore_state(pdev); 7602 7603 dev_info(&pdev->dev, "%s is called\n", __func__); 7604 /* 7605 * PCI prepping: enable device set bus mastering and dma mask 7606 */ 7607 rval = pci_enable_device_mem(pdev); 7608 7609 if (rval) { 7610 dev_err(&pdev->dev, "Enable device failed\n"); 7611 return rval; 7612 } 7613 7614 pci_set_master(pdev); 7615 7616 /* 7617 * We expect the FW state to be READY 7618 */ 7619 if (megasas_transition_to_ready(instance, 0)) 7620 goto fail_ready_state; 7621 7622 if (megasas_set_dma_mask(instance)) 7623 goto fail_set_dma_mask; 7624 7625 /* 7626 * Initialize MFI Firmware 7627 */ 7628 7629 atomic_set(&instance->fw_outstanding, 0); 7630 atomic_set(&instance->ldio_outstanding, 0); 7631 7632 /* Now re-enable MSI-X */ 7633 if (instance->msix_vectors) { 7634 irq_flags = PCI_IRQ_MSIX; 7635 if (instance->smp_affinity_enable) 7636 irq_flags |= PCI_IRQ_AFFINITY; 7637 } 7638 rval = pci_alloc_irq_vectors(instance->pdev, 1, 7639 instance->msix_vectors ? 7640 instance->msix_vectors : 1, irq_flags); 7641 if (rval < 0) 7642 goto fail_reenable_msix; 7643 7644 megasas_setup_reply_map(instance); 7645 7646 if (instance->adapter_type != MFI_SERIES) { 7647 megasas_reset_reply_desc(instance); 7648 if (megasas_ioc_init_fusion(instance)) { 7649 megasas_free_cmds(instance); 7650 megasas_free_cmds_fusion(instance); 7651 goto fail_init_mfi; 7652 } 7653 if (!megasas_get_map_info(instance)) 7654 megasas_sync_map_info(instance); 7655 } else { 7656 *instance->producer = 0; 7657 *instance->consumer = 0; 7658 if (megasas_issue_init_mfi(instance)) 7659 goto fail_init_mfi; 7660 } 7661 7662 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) 7663 goto fail_init_mfi; 7664 7665 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 7666 (unsigned long)instance); 7667 7668 if (instance->msix_vectors ? 7669 megasas_setup_irqs_msix(instance, 0) : 7670 megasas_setup_irqs_ioapic(instance)) 7671 goto fail_init_mfi; 7672 7673 if (instance->adapter_type != MFI_SERIES) 7674 megasas_setup_irq_poll(instance); 7675 7676 /* Re-launch SR-IOV heartbeat timer */ 7677 if (instance->requestorId) { 7678 if (!megasas_sriov_start_heartbeat(instance, 0)) 7679 megasas_start_timer(instance); 7680 else { 7681 instance->skip_heartbeat_timer_del = 1; 7682 goto fail_init_mfi; 7683 } 7684 } 7685 7686 instance->instancet->enable_intr(instance); 7687 megasas_setup_jbod_map(instance); 7688 instance->unload = 0; 7689 7690 /* 7691 * Initiate AEN (Asynchronous Event Notification) 7692 */ 7693 if (megasas_start_aen(instance)) 7694 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 7695 7696 /* Re-launch FW fault watchdog */ 7697 if (instance->adapter_type != MFI_SERIES) 7698 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 7699 goto fail_start_watchdog; 7700 7701 return 0; 7702 7703 fail_start_watchdog: 7704 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7705 del_timer_sync(&instance->sriov_heartbeat_timer); 7706 fail_init_mfi: 7707 megasas_free_ctrl_dma_buffers(instance); 7708 megasas_free_ctrl_mem(instance); 7709 scsi_host_put(host); 7710 7711 fail_reenable_msix: 7712 fail_set_dma_mask: 7713 fail_ready_state: 7714 7715 pci_disable_device(pdev); 7716 7717 return -ENODEV; 7718 } 7719 #else 7720 #define megasas_suspend NULL 7721 #define megasas_resume NULL 7722 #endif 7723 7724 static inline int 7725 megasas_wait_for_adapter_operational(struct megasas_instance *instance) 7726 { 7727 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 7728 int i; 7729 u8 adp_state; 7730 7731 for (i = 0; i < wait_time; i++) { 7732 adp_state = atomic_read(&instance->adprecovery); 7733 if ((adp_state == MEGASAS_HBA_OPERATIONAL) || 7734 (adp_state == MEGASAS_HW_CRITICAL_ERROR)) 7735 break; 7736 7737 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 7738 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 7739 7740 msleep(1000); 7741 } 7742 7743 if (adp_state != MEGASAS_HBA_OPERATIONAL) { 7744 dev_info(&instance->pdev->dev, 7745 "%s HBA failed to become operational, adp_state %d\n", 7746 __func__, adp_state); 7747 return 1; 7748 } 7749 7750 return 0; 7751 } 7752 7753 /** 7754 * megasas_detach_one - PCI hot"un"plug entry point 7755 * @pdev: PCI device structure 7756 */ 7757 static void megasas_detach_one(struct pci_dev *pdev) 7758 { 7759 int i; 7760 struct Scsi_Host *host; 7761 struct megasas_instance *instance; 7762 struct fusion_context *fusion; 7763 u32 pd_seq_map_sz; 7764 7765 instance = pci_get_drvdata(pdev); 7766 7767 if (!instance) 7768 return; 7769 7770 host = instance->host; 7771 fusion = instance->ctrl_context; 7772 7773 /* Shutdown SR-IOV heartbeat timer */ 7774 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7775 del_timer_sync(&instance->sriov_heartbeat_timer); 7776 7777 /* Stop the FW fault detection watchdog */ 7778 if (instance->adapter_type != MFI_SERIES) 7779 megasas_fusion_stop_watchdog(instance); 7780 7781 if (instance->fw_crash_state != UNAVAILABLE) 7782 megasas_free_host_crash_buffer(instance); 7783 scsi_remove_host(instance->host); 7784 instance->unload = 1; 7785 7786 if (megasas_wait_for_adapter_operational(instance)) 7787 goto skip_firing_dcmds; 7788 7789 megasas_flush_cache(instance); 7790 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7791 7792 skip_firing_dcmds: 7793 /* cancel the delayed work if this work still in queue*/ 7794 if (instance->ev != NULL) { 7795 struct megasas_aen_event *ev = instance->ev; 7796 cancel_delayed_work_sync(&ev->hotplug_work); 7797 instance->ev = NULL; 7798 } 7799 7800 /* cancel all wait events */ 7801 wake_up_all(&instance->int_cmd_wait_q); 7802 7803 tasklet_kill(&instance->isr_tasklet); 7804 7805 /* 7806 * Take the instance off the instance array. Note that we will not 7807 * decrement the max_index. We let this array be sparse array 7808 */ 7809 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 7810 if (megasas_mgmt_info.instance[i] == instance) { 7811 megasas_mgmt_info.count--; 7812 megasas_mgmt_info.instance[i] = NULL; 7813 7814 break; 7815 } 7816 } 7817 7818 instance->instancet->disable_intr(instance); 7819 7820 megasas_destroy_irqs(instance); 7821 7822 if (instance->msix_vectors) 7823 pci_free_irq_vectors(instance->pdev); 7824 7825 if (instance->adapter_type >= VENTURA_SERIES) { 7826 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 7827 kfree(fusion->stream_detect_by_ld[i]); 7828 kfree(fusion->stream_detect_by_ld); 7829 fusion->stream_detect_by_ld = NULL; 7830 } 7831 7832 7833 if (instance->adapter_type != MFI_SERIES) { 7834 megasas_release_fusion(instance); 7835 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 7836 (sizeof(struct MR_PD_CFG_SEQ) * 7837 (MAX_PHYSICAL_DEVICES - 1)); 7838 for (i = 0; i < 2 ; i++) { 7839 if (fusion->ld_map[i]) 7840 dma_free_coherent(&instance->pdev->dev, 7841 fusion->max_map_sz, 7842 fusion->ld_map[i], 7843 fusion->ld_map_phys[i]); 7844 if (fusion->ld_drv_map[i]) { 7845 if (is_vmalloc_addr(fusion->ld_drv_map[i])) 7846 vfree(fusion->ld_drv_map[i]); 7847 else 7848 free_pages((ulong)fusion->ld_drv_map[i], 7849 fusion->drv_map_pages); 7850 } 7851 7852 if (fusion->pd_seq_sync[i]) 7853 dma_free_coherent(&instance->pdev->dev, 7854 pd_seq_map_sz, 7855 fusion->pd_seq_sync[i], 7856 fusion->pd_seq_phys[i]); 7857 } 7858 } else { 7859 megasas_release_mfi(instance); 7860 } 7861 7862 if (instance->vf_affiliation) 7863 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * 7864 sizeof(struct MR_LD_VF_AFFILIATION), 7865 instance->vf_affiliation, 7866 instance->vf_affiliation_h); 7867 7868 if (instance->vf_affiliation_111) 7869 dma_free_coherent(&pdev->dev, 7870 sizeof(struct MR_LD_VF_AFFILIATION_111), 7871 instance->vf_affiliation_111, 7872 instance->vf_affiliation_111_h); 7873 7874 if (instance->hb_host_mem) 7875 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), 7876 instance->hb_host_mem, 7877 instance->hb_host_mem_h); 7878 7879 megasas_free_ctrl_dma_buffers(instance); 7880 7881 megasas_free_ctrl_mem(instance); 7882 7883 megasas_destroy_debugfs(instance); 7884 7885 scsi_host_put(host); 7886 7887 pci_disable_device(pdev); 7888 } 7889 7890 /** 7891 * megasas_shutdown - Shutdown entry point 7892 * @device: Generic device structure 7893 */ 7894 static void megasas_shutdown(struct pci_dev *pdev) 7895 { 7896 struct megasas_instance *instance = pci_get_drvdata(pdev); 7897 7898 if (!instance) 7899 return; 7900 7901 instance->unload = 1; 7902 7903 if (megasas_wait_for_adapter_operational(instance)) 7904 goto skip_firing_dcmds; 7905 7906 megasas_flush_cache(instance); 7907 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7908 7909 skip_firing_dcmds: 7910 instance->instancet->disable_intr(instance); 7911 megasas_destroy_irqs(instance); 7912 7913 if (instance->msix_vectors) 7914 pci_free_irq_vectors(instance->pdev); 7915 } 7916 7917 /** 7918 * megasas_mgmt_open - char node "open" entry point 7919 */ 7920 static int megasas_mgmt_open(struct inode *inode, struct file *filep) 7921 { 7922 /* 7923 * Allow only those users with admin rights 7924 */ 7925 if (!capable(CAP_SYS_ADMIN)) 7926 return -EACCES; 7927 7928 return 0; 7929 } 7930 7931 /** 7932 * megasas_mgmt_fasync - Async notifier registration from applications 7933 * 7934 * This function adds the calling process to a driver global queue. When an 7935 * event occurs, SIGIO will be sent to all processes in this queue. 7936 */ 7937 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 7938 { 7939 int rc; 7940 7941 mutex_lock(&megasas_async_queue_mutex); 7942 7943 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 7944 7945 mutex_unlock(&megasas_async_queue_mutex); 7946 7947 if (rc >= 0) { 7948 /* For sanity check when we get ioctl */ 7949 filep->private_data = filep; 7950 return 0; 7951 } 7952 7953 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 7954 7955 return rc; 7956 } 7957 7958 /** 7959 * megasas_mgmt_poll - char node "poll" entry point 7960 * */ 7961 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) 7962 { 7963 __poll_t mask; 7964 unsigned long flags; 7965 7966 poll_wait(file, &megasas_poll_wait, wait); 7967 spin_lock_irqsave(&poll_aen_lock, flags); 7968 if (megasas_poll_wait_aen) 7969 mask = (EPOLLIN | EPOLLRDNORM); 7970 else 7971 mask = 0; 7972 megasas_poll_wait_aen = 0; 7973 spin_unlock_irqrestore(&poll_aen_lock, flags); 7974 return mask; 7975 } 7976 7977 /* 7978 * megasas_set_crash_dump_params_ioctl: 7979 * Send CRASH_DUMP_MODE DCMD to all controllers 7980 * @cmd: MFI command frame 7981 */ 7982 7983 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 7984 { 7985 struct megasas_instance *local_instance; 7986 int i, error = 0; 7987 int crash_support; 7988 7989 crash_support = cmd->frame->dcmd.mbox.w[0]; 7990 7991 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 7992 local_instance = megasas_mgmt_info.instance[i]; 7993 if (local_instance && local_instance->crash_dump_drv_support) { 7994 if ((atomic_read(&local_instance->adprecovery) == 7995 MEGASAS_HBA_OPERATIONAL) && 7996 !megasas_set_crash_dump_params(local_instance, 7997 crash_support)) { 7998 local_instance->crash_dump_app_support = 7999 crash_support; 8000 dev_info(&local_instance->pdev->dev, 8001 "Application firmware crash " 8002 "dump mode set success\n"); 8003 error = 0; 8004 } else { 8005 dev_info(&local_instance->pdev->dev, 8006 "Application firmware crash " 8007 "dump mode set failed\n"); 8008 error = -1; 8009 } 8010 } 8011 } 8012 return error; 8013 } 8014 8015 /** 8016 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 8017 * @instance: Adapter soft state 8018 * @argp: User's ioctl packet 8019 */ 8020 static int 8021 megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 8022 struct megasas_iocpacket __user * user_ioc, 8023 struct megasas_iocpacket *ioc) 8024 { 8025 struct megasas_sge64 *kern_sge64 = NULL; 8026 struct megasas_sge32 *kern_sge32 = NULL; 8027 struct megasas_cmd *cmd; 8028 void *kbuff_arr[MAX_IOCTL_SGE]; 8029 dma_addr_t buf_handle = 0; 8030 int error = 0, i; 8031 void *sense = NULL; 8032 dma_addr_t sense_handle; 8033 unsigned long *sense_ptr; 8034 u32 opcode = 0; 8035 8036 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 8037 8038 if (ioc->sge_count > MAX_IOCTL_SGE) { 8039 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 8040 ioc->sge_count, MAX_IOCTL_SGE); 8041 return -EINVAL; 8042 } 8043 8044 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || 8045 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && 8046 !instance->support_nvme_passthru) || 8047 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && 8048 !instance->support_pci_lane_margining)) { 8049 dev_err(&instance->pdev->dev, 8050 "Received invalid ioctl command 0x%x\n", 8051 ioc->frame.hdr.cmd); 8052 return -ENOTSUPP; 8053 } 8054 8055 cmd = megasas_get_cmd(instance); 8056 if (!cmd) { 8057 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 8058 return -ENOMEM; 8059 } 8060 8061 /* 8062 * User's IOCTL packet has 2 frames (maximum). Copy those two 8063 * frames into our cmd's frames. cmd->frame's context will get 8064 * overwritten when we copy from user's frames. So set that value 8065 * alone separately 8066 */ 8067 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 8068 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 8069 cmd->frame->hdr.pad_0 = 0; 8070 8071 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); 8072 8073 if (instance->consistent_mask_64bit) 8074 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | 8075 MFI_FRAME_SENSE64)); 8076 else 8077 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | 8078 MFI_FRAME_SENSE64)); 8079 8080 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) 8081 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 8082 8083 if (opcode == MR_DCMD_CTRL_SHUTDOWN) { 8084 mutex_lock(&instance->reset_mutex); 8085 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 8086 megasas_return_cmd(instance, cmd); 8087 mutex_unlock(&instance->reset_mutex); 8088 return -1; 8089 } 8090 mutex_unlock(&instance->reset_mutex); 8091 } 8092 8093 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 8094 error = megasas_set_crash_dump_params_ioctl(cmd); 8095 megasas_return_cmd(instance, cmd); 8096 return error; 8097 } 8098 8099 /* 8100 * The management interface between applications and the fw uses 8101 * MFI frames. E.g, RAID configuration changes, LD property changes 8102 * etc are accomplishes through different kinds of MFI frames. The 8103 * driver needs to care only about substituting user buffers with 8104 * kernel buffers in SGLs. The location of SGL is embedded in the 8105 * struct iocpacket itself. 8106 */ 8107 if (instance->consistent_mask_64bit) 8108 kern_sge64 = (struct megasas_sge64 *) 8109 ((unsigned long)cmd->frame + ioc->sgl_off); 8110 else 8111 kern_sge32 = (struct megasas_sge32 *) 8112 ((unsigned long)cmd->frame + ioc->sgl_off); 8113 8114 /* 8115 * For each user buffer, create a mirror buffer and copy in 8116 */ 8117 for (i = 0; i < ioc->sge_count; i++) { 8118 if (!ioc->sgl[i].iov_len) 8119 continue; 8120 8121 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 8122 ioc->sgl[i].iov_len, 8123 &buf_handle, GFP_KERNEL); 8124 if (!kbuff_arr[i]) { 8125 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 8126 "kernel SGL buffer for IOCTL\n"); 8127 error = -ENOMEM; 8128 goto out; 8129 } 8130 8131 /* 8132 * We don't change the dma_coherent_mask, so 8133 * dma_alloc_coherent only returns 32bit addresses 8134 */ 8135 if (instance->consistent_mask_64bit) { 8136 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); 8137 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8138 } else { 8139 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 8140 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8141 } 8142 8143 /* 8144 * We created a kernel buffer corresponding to the 8145 * user buffer. Now copy in from the user buffer 8146 */ 8147 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 8148 (u32) (ioc->sgl[i].iov_len))) { 8149 error = -EFAULT; 8150 goto out; 8151 } 8152 } 8153 8154 if (ioc->sense_len) { 8155 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 8156 &sense_handle, GFP_KERNEL); 8157 if (!sense) { 8158 error = -ENOMEM; 8159 goto out; 8160 } 8161 8162 sense_ptr = 8163 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); 8164 if (instance->consistent_mask_64bit) 8165 *sense_ptr = cpu_to_le64(sense_handle); 8166 else 8167 *sense_ptr = cpu_to_le32(sense_handle); 8168 } 8169 8170 /* 8171 * Set the sync_cmd flag so that the ISR knows not to complete this 8172 * cmd to the SCSI mid-layer 8173 */ 8174 cmd->sync_cmd = 1; 8175 if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) { 8176 cmd->sync_cmd = 0; 8177 dev_err(&instance->pdev->dev, 8178 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", 8179 __func__, __LINE__, cmd->frame->hdr.cmd, opcode, 8180 cmd->cmd_status_drv); 8181 return -EBUSY; 8182 } 8183 8184 cmd->sync_cmd = 0; 8185 8186 if (instance->unload == 1) { 8187 dev_info(&instance->pdev->dev, "Driver unload is in progress " 8188 "don't submit data to application\n"); 8189 goto out; 8190 } 8191 /* 8192 * copy out the kernel buffers to user buffers 8193 */ 8194 for (i = 0; i < ioc->sge_count; i++) { 8195 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 8196 ioc->sgl[i].iov_len)) { 8197 error = -EFAULT; 8198 goto out; 8199 } 8200 } 8201 8202 /* 8203 * copy out the sense 8204 */ 8205 if (ioc->sense_len) { 8206 /* 8207 * sense_ptr points to the location that has the user 8208 * sense buffer address 8209 */ 8210 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + 8211 ioc->sense_off); 8212 8213 if (copy_to_user((void __user *)((unsigned long) 8214 get_unaligned((unsigned long *)sense_ptr)), 8215 sense, ioc->sense_len)) { 8216 dev_err(&instance->pdev->dev, "Failed to copy out to user " 8217 "sense data\n"); 8218 error = -EFAULT; 8219 goto out; 8220 } 8221 } 8222 8223 /* 8224 * copy the status codes returned by the fw 8225 */ 8226 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 8227 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 8228 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 8229 error = -EFAULT; 8230 } 8231 8232 out: 8233 if (sense) { 8234 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 8235 sense, sense_handle); 8236 } 8237 8238 for (i = 0; i < ioc->sge_count; i++) { 8239 if (kbuff_arr[i]) { 8240 if (instance->consistent_mask_64bit) 8241 dma_free_coherent(&instance->pdev->dev, 8242 le32_to_cpu(kern_sge64[i].length), 8243 kbuff_arr[i], 8244 le64_to_cpu(kern_sge64[i].phys_addr)); 8245 else 8246 dma_free_coherent(&instance->pdev->dev, 8247 le32_to_cpu(kern_sge32[i].length), 8248 kbuff_arr[i], 8249 le32_to_cpu(kern_sge32[i].phys_addr)); 8250 kbuff_arr[i] = NULL; 8251 } 8252 } 8253 8254 megasas_return_cmd(instance, cmd); 8255 return error; 8256 } 8257 8258 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 8259 { 8260 struct megasas_iocpacket __user *user_ioc = 8261 (struct megasas_iocpacket __user *)arg; 8262 struct megasas_iocpacket *ioc; 8263 struct megasas_instance *instance; 8264 int error; 8265 8266 ioc = memdup_user(user_ioc, sizeof(*ioc)); 8267 if (IS_ERR(ioc)) 8268 return PTR_ERR(ioc); 8269 8270 instance = megasas_lookup_instance(ioc->host_no); 8271 if (!instance) { 8272 error = -ENODEV; 8273 goto out_kfree_ioc; 8274 } 8275 8276 /* Block ioctls in VF mode */ 8277 if (instance->requestorId && !allow_vf_ioctls) { 8278 error = -ENODEV; 8279 goto out_kfree_ioc; 8280 } 8281 8282 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8283 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 8284 error = -ENODEV; 8285 goto out_kfree_ioc; 8286 } 8287 8288 if (instance->unload == 1) { 8289 error = -ENODEV; 8290 goto out_kfree_ioc; 8291 } 8292 8293 if (down_interruptible(&instance->ioctl_sem)) { 8294 error = -ERESTARTSYS; 8295 goto out_kfree_ioc; 8296 } 8297 8298 if (megasas_wait_for_adapter_operational(instance)) { 8299 error = -ENODEV; 8300 goto out_up; 8301 } 8302 8303 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 8304 out_up: 8305 up(&instance->ioctl_sem); 8306 8307 out_kfree_ioc: 8308 kfree(ioc); 8309 return error; 8310 } 8311 8312 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 8313 { 8314 struct megasas_instance *instance; 8315 struct megasas_aen aen; 8316 int error; 8317 8318 if (file->private_data != file) { 8319 printk(KERN_DEBUG "megasas: fasync_helper was not " 8320 "called first\n"); 8321 return -EINVAL; 8322 } 8323 8324 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 8325 return -EFAULT; 8326 8327 instance = megasas_lookup_instance(aen.host_no); 8328 8329 if (!instance) 8330 return -ENODEV; 8331 8332 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8333 return -ENODEV; 8334 } 8335 8336 if (instance->unload == 1) { 8337 return -ENODEV; 8338 } 8339 8340 if (megasas_wait_for_adapter_operational(instance)) 8341 return -ENODEV; 8342 8343 mutex_lock(&instance->reset_mutex); 8344 error = megasas_register_aen(instance, aen.seq_num, 8345 aen.class_locale_word); 8346 mutex_unlock(&instance->reset_mutex); 8347 return error; 8348 } 8349 8350 /** 8351 * megasas_mgmt_ioctl - char node ioctl entry point 8352 */ 8353 static long 8354 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 8355 { 8356 switch (cmd) { 8357 case MEGASAS_IOC_FIRMWARE: 8358 return megasas_mgmt_ioctl_fw(file, arg); 8359 8360 case MEGASAS_IOC_GET_AEN: 8361 return megasas_mgmt_ioctl_aen(file, arg); 8362 } 8363 8364 return -ENOTTY; 8365 } 8366 8367 #ifdef CONFIG_COMPAT 8368 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) 8369 { 8370 struct compat_megasas_iocpacket __user *cioc = 8371 (struct compat_megasas_iocpacket __user *)arg; 8372 struct megasas_iocpacket __user *ioc = 8373 compat_alloc_user_space(sizeof(struct megasas_iocpacket)); 8374 int i; 8375 int error = 0; 8376 compat_uptr_t ptr; 8377 u32 local_sense_off; 8378 u32 local_sense_len; 8379 u32 user_sense_off; 8380 8381 if (clear_user(ioc, sizeof(*ioc))) 8382 return -EFAULT; 8383 8384 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || 8385 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || 8386 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || 8387 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || 8388 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || 8389 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) 8390 return -EFAULT; 8391 8392 /* 8393 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when 8394 * sense_len is not null, so prepare the 64bit value under 8395 * the same condition. 8396 */ 8397 if (get_user(local_sense_off, &ioc->sense_off) || 8398 get_user(local_sense_len, &ioc->sense_len) || 8399 get_user(user_sense_off, &cioc->sense_off)) 8400 return -EFAULT; 8401 8402 if (local_sense_off != user_sense_off) 8403 return -EINVAL; 8404 8405 if (local_sense_len) { 8406 void __user **sense_ioc_ptr = 8407 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); 8408 compat_uptr_t *sense_cioc_ptr = 8409 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); 8410 if (get_user(ptr, sense_cioc_ptr) || 8411 put_user(compat_ptr(ptr), sense_ioc_ptr)) 8412 return -EFAULT; 8413 } 8414 8415 for (i = 0; i < MAX_IOCTL_SGE; i++) { 8416 if (get_user(ptr, &cioc->sgl[i].iov_base) || 8417 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || 8418 copy_in_user(&ioc->sgl[i].iov_len, 8419 &cioc->sgl[i].iov_len, sizeof(compat_size_t))) 8420 return -EFAULT; 8421 } 8422 8423 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); 8424 8425 if (copy_in_user(&cioc->frame.hdr.cmd_status, 8426 &ioc->frame.hdr.cmd_status, sizeof(u8))) { 8427 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); 8428 return -EFAULT; 8429 } 8430 return error; 8431 } 8432 8433 static long 8434 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 8435 unsigned long arg) 8436 { 8437 switch (cmd) { 8438 case MEGASAS_IOC_FIRMWARE32: 8439 return megasas_mgmt_compat_ioctl_fw(file, arg); 8440 case MEGASAS_IOC_GET_AEN: 8441 return megasas_mgmt_ioctl_aen(file, arg); 8442 } 8443 8444 return -ENOTTY; 8445 } 8446 #endif 8447 8448 /* 8449 * File operations structure for management interface 8450 */ 8451 static const struct file_operations megasas_mgmt_fops = { 8452 .owner = THIS_MODULE, 8453 .open = megasas_mgmt_open, 8454 .fasync = megasas_mgmt_fasync, 8455 .unlocked_ioctl = megasas_mgmt_ioctl, 8456 .poll = megasas_mgmt_poll, 8457 #ifdef CONFIG_COMPAT 8458 .compat_ioctl = megasas_mgmt_compat_ioctl, 8459 #endif 8460 .llseek = noop_llseek, 8461 }; 8462 8463 /* 8464 * PCI hotplug support registration structure 8465 */ 8466 static struct pci_driver megasas_pci_driver = { 8467 8468 .name = "megaraid_sas", 8469 .id_table = megasas_pci_table, 8470 .probe = megasas_probe_one, 8471 .remove = megasas_detach_one, 8472 .suspend = megasas_suspend, 8473 .resume = megasas_resume, 8474 .shutdown = megasas_shutdown, 8475 }; 8476 8477 /* 8478 * Sysfs driver attributes 8479 */ 8480 static ssize_t version_show(struct device_driver *dd, char *buf) 8481 { 8482 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 8483 MEGASAS_VERSION); 8484 } 8485 static DRIVER_ATTR_RO(version); 8486 8487 static ssize_t release_date_show(struct device_driver *dd, char *buf) 8488 { 8489 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 8490 MEGASAS_RELDATE); 8491 } 8492 static DRIVER_ATTR_RO(release_date); 8493 8494 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) 8495 { 8496 return sprintf(buf, "%u\n", support_poll_for_event); 8497 } 8498 static DRIVER_ATTR_RO(support_poll_for_event); 8499 8500 static ssize_t support_device_change_show(struct device_driver *dd, char *buf) 8501 { 8502 return sprintf(buf, "%u\n", support_device_change); 8503 } 8504 static DRIVER_ATTR_RO(support_device_change); 8505 8506 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) 8507 { 8508 return sprintf(buf, "%u\n", megasas_dbg_lvl); 8509 } 8510 8511 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, 8512 size_t count) 8513 { 8514 int retval = count; 8515 8516 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 8517 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 8518 retval = -EINVAL; 8519 } 8520 return retval; 8521 } 8522 static DRIVER_ATTR_RW(dbg_lvl); 8523 8524 static ssize_t 8525 support_nvme_encapsulation_show(struct device_driver *dd, char *buf) 8526 { 8527 return sprintf(buf, "%u\n", support_nvme_encapsulation); 8528 } 8529 8530 static DRIVER_ATTR_RO(support_nvme_encapsulation); 8531 8532 static ssize_t 8533 support_pci_lane_margining_show(struct device_driver *dd, char *buf) 8534 { 8535 return sprintf(buf, "%u\n", support_pci_lane_margining); 8536 } 8537 8538 static DRIVER_ATTR_RO(support_pci_lane_margining); 8539 8540 static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 8541 { 8542 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 8543 scsi_remove_device(sdev); 8544 scsi_device_put(sdev); 8545 } 8546 8547 /** 8548 * megasas_update_device_list - Update the PD and LD device list from FW 8549 * after an AEN event notification 8550 * @instance: Adapter soft state 8551 * @event_type: Indicates type of event (PD or LD event) 8552 * 8553 * @return: Success or failure 8554 * 8555 * Issue DCMDs to Firmware to update the internal device list in driver. 8556 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 8557 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 8558 */ 8559 static 8560 int megasas_update_device_list(struct megasas_instance *instance, 8561 int event_type) 8562 { 8563 int dcmd_ret = DCMD_SUCCESS; 8564 8565 if (instance->enable_fw_dev_list) { 8566 dcmd_ret = megasas_host_device_list_query(instance, false); 8567 if (dcmd_ret != DCMD_SUCCESS) 8568 goto out; 8569 } else { 8570 if (event_type & SCAN_PD_CHANNEL) { 8571 dcmd_ret = megasas_get_pd_list(instance); 8572 8573 if (dcmd_ret != DCMD_SUCCESS) 8574 goto out; 8575 } 8576 8577 if (event_type & SCAN_VD_CHANNEL) { 8578 if (!instance->requestorId || 8579 (instance->requestorId && 8580 megasas_get_ld_vf_affiliation(instance, 0))) { 8581 dcmd_ret = megasas_ld_list_query(instance, 8582 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 8583 if (dcmd_ret != DCMD_SUCCESS) 8584 goto out; 8585 } 8586 } 8587 } 8588 8589 out: 8590 return dcmd_ret; 8591 } 8592 8593 /** 8594 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer 8595 * after an AEN event notification 8596 * @instance: Adapter soft state 8597 * @scan_type: Indicates type of devices (PD/LD) to add 8598 * @return void 8599 */ 8600 static 8601 void megasas_add_remove_devices(struct megasas_instance *instance, 8602 int scan_type) 8603 { 8604 int i, j; 8605 u16 pd_index = 0; 8606 u16 ld_index = 0; 8607 u16 channel = 0, id = 0; 8608 struct Scsi_Host *host; 8609 struct scsi_device *sdev1; 8610 struct MR_HOST_DEVICE_LIST *targetid_list = NULL; 8611 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; 8612 8613 host = instance->host; 8614 8615 if (instance->enable_fw_dev_list) { 8616 targetid_list = instance->host_device_list_buf; 8617 for (i = 0; i < targetid_list->count; i++) { 8618 targetid_entry = &targetid_list->host_device_list[i]; 8619 if (targetid_entry->flags.u.bits.is_sys_pd) { 8620 channel = le16_to_cpu(targetid_entry->target_id) / 8621 MEGASAS_MAX_DEV_PER_CHANNEL; 8622 id = le16_to_cpu(targetid_entry->target_id) % 8623 MEGASAS_MAX_DEV_PER_CHANNEL; 8624 } else { 8625 channel = MEGASAS_MAX_PD_CHANNELS + 8626 (le16_to_cpu(targetid_entry->target_id) / 8627 MEGASAS_MAX_DEV_PER_CHANNEL); 8628 id = le16_to_cpu(targetid_entry->target_id) % 8629 MEGASAS_MAX_DEV_PER_CHANNEL; 8630 } 8631 sdev1 = scsi_device_lookup(host, channel, id, 0); 8632 if (!sdev1) { 8633 scsi_add_device(host, channel, id, 0); 8634 } else { 8635 scsi_device_put(sdev1); 8636 } 8637 } 8638 } 8639 8640 if (scan_type & SCAN_PD_CHANNEL) { 8641 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 8642 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8643 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; 8644 sdev1 = scsi_device_lookup(host, i, j, 0); 8645 if (instance->pd_list[pd_index].driveState == 8646 MR_PD_STATE_SYSTEM) { 8647 if (!sdev1) 8648 scsi_add_device(host, i, j, 0); 8649 else 8650 scsi_device_put(sdev1); 8651 } else { 8652 if (sdev1) 8653 megasas_remove_scsi_device(sdev1); 8654 } 8655 } 8656 } 8657 } 8658 8659 if (scan_type & SCAN_VD_CHANNEL) { 8660 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 8661 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8662 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 8663 sdev1 = scsi_device_lookup(host, 8664 MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8665 if (instance->ld_ids[ld_index] != 0xff) { 8666 if (!sdev1) 8667 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8668 else 8669 scsi_device_put(sdev1); 8670 } else { 8671 if (sdev1) 8672 megasas_remove_scsi_device(sdev1); 8673 } 8674 } 8675 } 8676 } 8677 8678 } 8679 8680 static void 8681 megasas_aen_polling(struct work_struct *work) 8682 { 8683 struct megasas_aen_event *ev = 8684 container_of(work, struct megasas_aen_event, hotplug_work.work); 8685 struct megasas_instance *instance = ev->instance; 8686 union megasas_evt_class_locale class_locale; 8687 int event_type = 0; 8688 u32 seq_num; 8689 int error; 8690 u8 dcmd_ret = DCMD_SUCCESS; 8691 8692 if (!instance) { 8693 printk(KERN_ERR "invalid instance!\n"); 8694 kfree(ev); 8695 return; 8696 } 8697 8698 /* Don't run the event workqueue thread if OCR is running */ 8699 mutex_lock(&instance->reset_mutex); 8700 8701 instance->ev = NULL; 8702 if (instance->evt_detail) { 8703 megasas_decode_evt(instance); 8704 8705 switch (le32_to_cpu(instance->evt_detail->code)) { 8706 8707 case MR_EVT_PD_INSERTED: 8708 case MR_EVT_PD_REMOVED: 8709 event_type = SCAN_PD_CHANNEL; 8710 break; 8711 8712 case MR_EVT_LD_OFFLINE: 8713 case MR_EVT_CFG_CLEARED: 8714 case MR_EVT_LD_DELETED: 8715 case MR_EVT_LD_CREATED: 8716 event_type = SCAN_VD_CHANNEL; 8717 break; 8718 8719 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 8720 case MR_EVT_FOREIGN_CFG_IMPORTED: 8721 case MR_EVT_LD_STATE_CHANGE: 8722 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; 8723 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 8724 instance->host->host_no); 8725 break; 8726 8727 case MR_EVT_CTRL_PROP_CHANGED: 8728 dcmd_ret = megasas_get_ctrl_info(instance); 8729 if (dcmd_ret == DCMD_SUCCESS && 8730 instance->snapdump_wait_time) { 8731 megasas_get_snapdump_properties(instance); 8732 dev_info(&instance->pdev->dev, 8733 "Snap dump wait time\t: %d\n", 8734 instance->snapdump_wait_time); 8735 } 8736 break; 8737 default: 8738 event_type = 0; 8739 break; 8740 } 8741 } else { 8742 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 8743 mutex_unlock(&instance->reset_mutex); 8744 kfree(ev); 8745 return; 8746 } 8747 8748 if (event_type) 8749 dcmd_ret = megasas_update_device_list(instance, event_type); 8750 8751 mutex_unlock(&instance->reset_mutex); 8752 8753 if (event_type && dcmd_ret == DCMD_SUCCESS) 8754 megasas_add_remove_devices(instance, event_type); 8755 8756 if (dcmd_ret == DCMD_SUCCESS) 8757 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 8758 else 8759 seq_num = instance->last_seq_num; 8760 8761 /* Register AEN with FW for latest sequence number plus 1 */ 8762 class_locale.members.reserved = 0; 8763 class_locale.members.locale = MR_EVT_LOCALE_ALL; 8764 class_locale.members.class = MR_EVT_CLASS_DEBUG; 8765 8766 if (instance->aen_cmd != NULL) { 8767 kfree(ev); 8768 return; 8769 } 8770 8771 mutex_lock(&instance->reset_mutex); 8772 error = megasas_register_aen(instance, seq_num, 8773 class_locale.word); 8774 if (error) 8775 dev_err(&instance->pdev->dev, 8776 "register aen failed error %x\n", error); 8777 8778 mutex_unlock(&instance->reset_mutex); 8779 kfree(ev); 8780 } 8781 8782 /** 8783 * megasas_init - Driver load entry point 8784 */ 8785 static int __init megasas_init(void) 8786 { 8787 int rval; 8788 8789 /* 8790 * Booted in kdump kernel, minimize memory footprints by 8791 * disabling few features 8792 */ 8793 if (reset_devices) { 8794 msix_vectors = 1; 8795 rdpq_enable = 0; 8796 dual_qdepth_disable = 1; 8797 } 8798 8799 /* 8800 * Announce driver version and other information 8801 */ 8802 pr_info("megasas: %s\n", MEGASAS_VERSION); 8803 8804 spin_lock_init(&poll_aen_lock); 8805 8806 support_poll_for_event = 2; 8807 support_device_change = 1; 8808 support_nvme_encapsulation = true; 8809 support_pci_lane_margining = true; 8810 8811 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 8812 8813 /* 8814 * Register character device node 8815 */ 8816 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 8817 8818 if (rval < 0) { 8819 printk(KERN_DEBUG "megasas: failed to open device node\n"); 8820 return rval; 8821 } 8822 8823 megasas_mgmt_majorno = rval; 8824 8825 megasas_init_debugfs(); 8826 8827 /* 8828 * Register ourselves as PCI hotplug module 8829 */ 8830 rval = pci_register_driver(&megasas_pci_driver); 8831 8832 if (rval) { 8833 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 8834 goto err_pcidrv; 8835 } 8836 8837 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 8838 (event_log_level > MFI_EVT_CLASS_DEAD)) { 8839 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"); 8840 event_log_level = MFI_EVT_CLASS_CRITICAL; 8841 } 8842 8843 rval = driver_create_file(&megasas_pci_driver.driver, 8844 &driver_attr_version); 8845 if (rval) 8846 goto err_dcf_attr_ver; 8847 8848 rval = driver_create_file(&megasas_pci_driver.driver, 8849 &driver_attr_release_date); 8850 if (rval) 8851 goto err_dcf_rel_date; 8852 8853 rval = driver_create_file(&megasas_pci_driver.driver, 8854 &driver_attr_support_poll_for_event); 8855 if (rval) 8856 goto err_dcf_support_poll_for_event; 8857 8858 rval = driver_create_file(&megasas_pci_driver.driver, 8859 &driver_attr_dbg_lvl); 8860 if (rval) 8861 goto err_dcf_dbg_lvl; 8862 rval = driver_create_file(&megasas_pci_driver.driver, 8863 &driver_attr_support_device_change); 8864 if (rval) 8865 goto err_dcf_support_device_change; 8866 8867 rval = driver_create_file(&megasas_pci_driver.driver, 8868 &driver_attr_support_nvme_encapsulation); 8869 if (rval) 8870 goto err_dcf_support_nvme_encapsulation; 8871 8872 rval = driver_create_file(&megasas_pci_driver.driver, 8873 &driver_attr_support_pci_lane_margining); 8874 if (rval) 8875 goto err_dcf_support_pci_lane_margining; 8876 8877 return rval; 8878 8879 err_dcf_support_pci_lane_margining: 8880 driver_remove_file(&megasas_pci_driver.driver, 8881 &driver_attr_support_nvme_encapsulation); 8882 8883 err_dcf_support_nvme_encapsulation: 8884 driver_remove_file(&megasas_pci_driver.driver, 8885 &driver_attr_support_device_change); 8886 8887 err_dcf_support_device_change: 8888 driver_remove_file(&megasas_pci_driver.driver, 8889 &driver_attr_dbg_lvl); 8890 err_dcf_dbg_lvl: 8891 driver_remove_file(&megasas_pci_driver.driver, 8892 &driver_attr_support_poll_for_event); 8893 err_dcf_support_poll_for_event: 8894 driver_remove_file(&megasas_pci_driver.driver, 8895 &driver_attr_release_date); 8896 err_dcf_rel_date: 8897 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8898 err_dcf_attr_ver: 8899 pci_unregister_driver(&megasas_pci_driver); 8900 err_pcidrv: 8901 megasas_exit_debugfs(); 8902 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8903 return rval; 8904 } 8905 8906 /** 8907 * megasas_exit - Driver unload entry point 8908 */ 8909 static void __exit megasas_exit(void) 8910 { 8911 driver_remove_file(&megasas_pci_driver.driver, 8912 &driver_attr_dbg_lvl); 8913 driver_remove_file(&megasas_pci_driver.driver, 8914 &driver_attr_support_poll_for_event); 8915 driver_remove_file(&megasas_pci_driver.driver, 8916 &driver_attr_support_device_change); 8917 driver_remove_file(&megasas_pci_driver.driver, 8918 &driver_attr_release_date); 8919 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8920 driver_remove_file(&megasas_pci_driver.driver, 8921 &driver_attr_support_nvme_encapsulation); 8922 driver_remove_file(&megasas_pci_driver.driver, 8923 &driver_attr_support_pci_lane_margining); 8924 8925 pci_unregister_driver(&megasas_pci_driver); 8926 megasas_exit_debugfs(); 8927 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8928 } 8929 8930 module_init(megasas_init); 8931 module_exit(megasas_exit); 8932