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 static 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_INIT; 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 = DCMD_INIT; 1127 1128 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1129 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1130 __func__, __LINE__); 1131 return DCMD_INIT; 1132 } 1133 1134 instance->instancet->issue_dcmd(instance, cmd); 1135 1136 if (timeout) { 1137 ret = wait_event_timeout(instance->int_cmd_wait_q, 1138 cmd->cmd_status_drv != DCMD_INIT, 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 != DCMD_INIT); 1148 1149 return cmd->cmd_status_drv; 1150 } 1151 1152 /** 1153 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd 1154 * @instance: Adapter soft state 1155 * @cmd_to_abort: Previously issued cmd to be aborted 1156 * @timeout: Timeout in seconds 1157 * 1158 * MFI firmware can abort previously issued AEN comamnd (automatic event 1159 * notification). The megasas_issue_blocked_abort_cmd() issues such abort 1160 * cmd and waits for return status. 1161 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1162 */ 1163 static int 1164 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, 1165 struct megasas_cmd *cmd_to_abort, int timeout) 1166 { 1167 struct megasas_cmd *cmd; 1168 struct megasas_abort_frame *abort_fr; 1169 int ret = 0; 1170 u32 opcode; 1171 1172 cmd = megasas_get_cmd(instance); 1173 1174 if (!cmd) 1175 return -1; 1176 1177 abort_fr = &cmd->frame->abort; 1178 1179 /* 1180 * Prepare and issue the abort frame 1181 */ 1182 abort_fr->cmd = MFI_CMD_ABORT; 1183 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; 1184 abort_fr->flags = cpu_to_le16(0); 1185 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); 1186 abort_fr->abort_mfi_phys_addr_lo = 1187 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); 1188 abort_fr->abort_mfi_phys_addr_hi = 1189 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); 1190 1191 cmd->sync_cmd = 1; 1192 cmd->cmd_status_drv = DCMD_INIT; 1193 1194 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1195 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1196 __func__, __LINE__); 1197 return DCMD_INIT; 1198 } 1199 1200 instance->instancet->issue_dcmd(instance, cmd); 1201 1202 if (timeout) { 1203 ret = wait_event_timeout(instance->abort_cmd_wait_q, 1204 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1205 if (!ret) { 1206 opcode = cmd_to_abort->frame->dcmd.opcode; 1207 dev_err(&instance->pdev->dev, 1208 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n", 1209 opcode, __func__); 1210 return DCMD_TIMEOUT; 1211 } 1212 } else 1213 wait_event(instance->abort_cmd_wait_q, 1214 cmd->cmd_status_drv != DCMD_INIT); 1215 1216 cmd->sync_cmd = 0; 1217 1218 megasas_return_cmd(instance, cmd); 1219 return cmd->cmd_status_drv; 1220 } 1221 1222 /** 1223 * megasas_make_sgl32 - Prepares 32-bit SGL 1224 * @instance: Adapter soft state 1225 * @scp: SCSI command from the mid-layer 1226 * @mfi_sgl: SGL to be filled in 1227 * 1228 * If successful, this function returns the number of SG elements. Otherwise, 1229 * it returnes -1. 1230 */ 1231 static int 1232 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, 1233 union megasas_sgl *mfi_sgl) 1234 { 1235 int i; 1236 int sge_count; 1237 struct scatterlist *os_sgl; 1238 1239 sge_count = scsi_dma_map(scp); 1240 BUG_ON(sge_count < 0); 1241 1242 if (sge_count) { 1243 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1244 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1245 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); 1246 } 1247 } 1248 return sge_count; 1249 } 1250 1251 /** 1252 * megasas_make_sgl64 - Prepares 64-bit SGL 1253 * @instance: Adapter soft state 1254 * @scp: SCSI command from the mid-layer 1255 * @mfi_sgl: SGL to be filled in 1256 * 1257 * If successful, this function returns the number of SG elements. Otherwise, 1258 * it returnes -1. 1259 */ 1260 static int 1261 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, 1262 union megasas_sgl *mfi_sgl) 1263 { 1264 int i; 1265 int sge_count; 1266 struct scatterlist *os_sgl; 1267 1268 sge_count = scsi_dma_map(scp); 1269 BUG_ON(sge_count < 0); 1270 1271 if (sge_count) { 1272 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1273 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1274 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); 1275 } 1276 } 1277 return sge_count; 1278 } 1279 1280 /** 1281 * megasas_make_sgl_skinny - Prepares IEEE SGL 1282 * @instance: Adapter soft state 1283 * @scp: SCSI command from the mid-layer 1284 * @mfi_sgl: SGL to be filled in 1285 * 1286 * If successful, this function returns the number of SG elements. Otherwise, 1287 * it returnes -1. 1288 */ 1289 static int 1290 megasas_make_sgl_skinny(struct megasas_instance *instance, 1291 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) 1292 { 1293 int i; 1294 int sge_count; 1295 struct scatterlist *os_sgl; 1296 1297 sge_count = scsi_dma_map(scp); 1298 1299 if (sge_count) { 1300 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1301 mfi_sgl->sge_skinny[i].length = 1302 cpu_to_le32(sg_dma_len(os_sgl)); 1303 mfi_sgl->sge_skinny[i].phys_addr = 1304 cpu_to_le64(sg_dma_address(os_sgl)); 1305 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); 1306 } 1307 } 1308 return sge_count; 1309 } 1310 1311 /** 1312 * megasas_get_frame_count - Computes the number of frames 1313 * @frame_type : type of frame- io or pthru frame 1314 * @sge_count : number of sg elements 1315 * 1316 * Returns the number of frames required for numnber of sge's (sge_count) 1317 */ 1318 1319 static u32 megasas_get_frame_count(struct megasas_instance *instance, 1320 u8 sge_count, u8 frame_type) 1321 { 1322 int num_cnt; 1323 int sge_bytes; 1324 u32 sge_sz; 1325 u32 frame_count = 0; 1326 1327 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 1328 sizeof(struct megasas_sge32); 1329 1330 if (instance->flag_ieee) { 1331 sge_sz = sizeof(struct megasas_sge_skinny); 1332 } 1333 1334 /* 1335 * Main frame can contain 2 SGEs for 64-bit SGLs and 1336 * 3 SGEs for 32-bit SGLs for ldio & 1337 * 1 SGEs for 64-bit SGLs and 1338 * 2 SGEs for 32-bit SGLs for pthru frame 1339 */ 1340 if (unlikely(frame_type == PTHRU_FRAME)) { 1341 if (instance->flag_ieee == 1) { 1342 num_cnt = sge_count - 1; 1343 } else if (IS_DMA64) 1344 num_cnt = sge_count - 1; 1345 else 1346 num_cnt = sge_count - 2; 1347 } else { 1348 if (instance->flag_ieee == 1) { 1349 num_cnt = sge_count - 1; 1350 } else if (IS_DMA64) 1351 num_cnt = sge_count - 2; 1352 else 1353 num_cnt = sge_count - 3; 1354 } 1355 1356 if (num_cnt > 0) { 1357 sge_bytes = sge_sz * num_cnt; 1358 1359 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + 1360 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; 1361 } 1362 /* Main frame */ 1363 frame_count += 1; 1364 1365 if (frame_count > 7) 1366 frame_count = 8; 1367 return frame_count; 1368 } 1369 1370 /** 1371 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command 1372 * @instance: Adapter soft state 1373 * @scp: SCSI command 1374 * @cmd: Command to be prepared in 1375 * 1376 * This function prepares CDB commands. These are typcially pass-through 1377 * commands to the devices. 1378 */ 1379 static int 1380 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, 1381 struct megasas_cmd *cmd) 1382 { 1383 u32 is_logical; 1384 u32 device_id; 1385 u16 flags = 0; 1386 struct megasas_pthru_frame *pthru; 1387 1388 is_logical = MEGASAS_IS_LOGICAL(scp->device); 1389 device_id = MEGASAS_DEV_INDEX(scp); 1390 pthru = (struct megasas_pthru_frame *)cmd->frame; 1391 1392 if (scp->sc_data_direction == DMA_TO_DEVICE) 1393 flags = MFI_FRAME_DIR_WRITE; 1394 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1395 flags = MFI_FRAME_DIR_READ; 1396 else if (scp->sc_data_direction == DMA_NONE) 1397 flags = MFI_FRAME_DIR_NONE; 1398 1399 if (instance->flag_ieee == 1) { 1400 flags |= MFI_FRAME_IEEE; 1401 } 1402 1403 /* 1404 * Prepare the DCDB frame 1405 */ 1406 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; 1407 pthru->cmd_status = 0x0; 1408 pthru->scsi_status = 0x0; 1409 pthru->target_id = device_id; 1410 pthru->lun = scp->device->lun; 1411 pthru->cdb_len = scp->cmd_len; 1412 pthru->timeout = 0; 1413 pthru->pad_0 = 0; 1414 pthru->flags = cpu_to_le16(flags); 1415 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); 1416 1417 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); 1418 1419 /* 1420 * If the command is for the tape device, set the 1421 * pthru timeout to the os layer timeout value. 1422 */ 1423 if (scp->device->type == TYPE_TAPE) { 1424 if ((scp->request->timeout / HZ) > 0xFFFF) 1425 pthru->timeout = cpu_to_le16(0xFFFF); 1426 else 1427 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); 1428 } 1429 1430 /* 1431 * Construct SGL 1432 */ 1433 if (instance->flag_ieee == 1) { 1434 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1435 pthru->sge_count = megasas_make_sgl_skinny(instance, scp, 1436 &pthru->sgl); 1437 } else if (IS_DMA64) { 1438 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1439 pthru->sge_count = megasas_make_sgl64(instance, scp, 1440 &pthru->sgl); 1441 } else 1442 pthru->sge_count = megasas_make_sgl32(instance, scp, 1443 &pthru->sgl); 1444 1445 if (pthru->sge_count > instance->max_num_sge) { 1446 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", 1447 pthru->sge_count); 1448 return 0; 1449 } 1450 1451 /* 1452 * Sense info specific 1453 */ 1454 pthru->sense_len = SCSI_SENSE_BUFFERSIZE; 1455 pthru->sense_buf_phys_addr_hi = 1456 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); 1457 pthru->sense_buf_phys_addr_lo = 1458 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); 1459 1460 /* 1461 * Compute the total number of frames this command consumes. FW uses 1462 * this number to pull sufficient number of frames from host memory. 1463 */ 1464 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, 1465 PTHRU_FRAME); 1466 1467 return cmd->frame_count; 1468 } 1469 1470 /** 1471 * megasas_build_ldio - Prepares IOs to logical devices 1472 * @instance: Adapter soft state 1473 * @scp: SCSI command 1474 * @cmd: Command to be prepared 1475 * 1476 * Frames (and accompanying SGLs) for regular SCSI IOs use this function. 1477 */ 1478 static int 1479 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, 1480 struct megasas_cmd *cmd) 1481 { 1482 u32 device_id; 1483 u8 sc = scp->cmnd[0]; 1484 u16 flags = 0; 1485 struct megasas_io_frame *ldio; 1486 1487 device_id = MEGASAS_DEV_INDEX(scp); 1488 ldio = (struct megasas_io_frame *)cmd->frame; 1489 1490 if (scp->sc_data_direction == DMA_TO_DEVICE) 1491 flags = MFI_FRAME_DIR_WRITE; 1492 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1493 flags = MFI_FRAME_DIR_READ; 1494 1495 if (instance->flag_ieee == 1) { 1496 flags |= MFI_FRAME_IEEE; 1497 } 1498 1499 /* 1500 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds 1501 */ 1502 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; 1503 ldio->cmd_status = 0x0; 1504 ldio->scsi_status = 0x0; 1505 ldio->target_id = device_id; 1506 ldio->timeout = 0; 1507 ldio->reserved_0 = 0; 1508 ldio->pad_0 = 0; 1509 ldio->flags = cpu_to_le16(flags); 1510 ldio->start_lba_hi = 0; 1511 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; 1512 1513 /* 1514 * 6-byte READ(0x08) or WRITE(0x0A) cdb 1515 */ 1516 if (scp->cmd_len == 6) { 1517 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); 1518 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | 1519 ((u32) scp->cmnd[2] << 8) | 1520 (u32) scp->cmnd[3]); 1521 1522 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); 1523 } 1524 1525 /* 1526 * 10-byte READ(0x28) or WRITE(0x2A) cdb 1527 */ 1528 else if (scp->cmd_len == 10) { 1529 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | 1530 ((u32) scp->cmnd[7] << 8)); 1531 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1532 ((u32) scp->cmnd[3] << 16) | 1533 ((u32) scp->cmnd[4] << 8) | 1534 (u32) scp->cmnd[5]); 1535 } 1536 1537 /* 1538 * 12-byte READ(0xA8) or WRITE(0xAA) cdb 1539 */ 1540 else if (scp->cmd_len == 12) { 1541 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1542 ((u32) scp->cmnd[7] << 16) | 1543 ((u32) scp->cmnd[8] << 8) | 1544 (u32) scp->cmnd[9]); 1545 1546 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1547 ((u32) scp->cmnd[3] << 16) | 1548 ((u32) scp->cmnd[4] << 8) | 1549 (u32) scp->cmnd[5]); 1550 } 1551 1552 /* 1553 * 16-byte READ(0x88) or WRITE(0x8A) cdb 1554 */ 1555 else if (scp->cmd_len == 16) { 1556 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | 1557 ((u32) scp->cmnd[11] << 16) | 1558 ((u32) scp->cmnd[12] << 8) | 1559 (u32) scp->cmnd[13]); 1560 1561 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1562 ((u32) scp->cmnd[7] << 16) | 1563 ((u32) scp->cmnd[8] << 8) | 1564 (u32) scp->cmnd[9]); 1565 1566 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1567 ((u32) scp->cmnd[3] << 16) | 1568 ((u32) scp->cmnd[4] << 8) | 1569 (u32) scp->cmnd[5]); 1570 1571 } 1572 1573 /* 1574 * Construct SGL 1575 */ 1576 if (instance->flag_ieee) { 1577 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1578 ldio->sge_count = megasas_make_sgl_skinny(instance, scp, 1579 &ldio->sgl); 1580 } else if (IS_DMA64) { 1581 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1582 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); 1583 } else 1584 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); 1585 1586 if (ldio->sge_count > instance->max_num_sge) { 1587 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", 1588 ldio->sge_count); 1589 return 0; 1590 } 1591 1592 /* 1593 * Sense info specific 1594 */ 1595 ldio->sense_len = SCSI_SENSE_BUFFERSIZE; 1596 ldio->sense_buf_phys_addr_hi = 0; 1597 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); 1598 1599 /* 1600 * Compute the total number of frames this command consumes. FW uses 1601 * this number to pull sufficient number of frames from host memory. 1602 */ 1603 cmd->frame_count = megasas_get_frame_count(instance, 1604 ldio->sge_count, IO_FRAME); 1605 1606 return cmd->frame_count; 1607 } 1608 1609 /** 1610 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD 1611 * and whether it's RW or non RW 1612 * @scmd: SCSI command 1613 * 1614 */ 1615 inline int megasas_cmd_type(struct scsi_cmnd *cmd) 1616 { 1617 int ret; 1618 1619 switch (cmd->cmnd[0]) { 1620 case READ_10: 1621 case WRITE_10: 1622 case READ_12: 1623 case WRITE_12: 1624 case READ_6: 1625 case WRITE_6: 1626 case READ_16: 1627 case WRITE_16: 1628 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1629 READ_WRITE_LDIO : READ_WRITE_SYSPDIO; 1630 break; 1631 default: 1632 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1633 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; 1634 } 1635 return ret; 1636 } 1637 1638 /** 1639 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds 1640 * in FW 1641 * @instance: Adapter soft state 1642 */ 1643 static inline void 1644 megasas_dump_pending_frames(struct megasas_instance *instance) 1645 { 1646 struct megasas_cmd *cmd; 1647 int i,n; 1648 union megasas_sgl *mfi_sgl; 1649 struct megasas_io_frame *ldio; 1650 struct megasas_pthru_frame *pthru; 1651 u32 sgcount; 1652 u16 max_cmd = instance->max_fw_cmds; 1653 1654 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); 1655 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); 1656 if (IS_DMA64) 1657 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); 1658 else 1659 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); 1660 1661 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); 1662 for (i = 0; i < max_cmd; i++) { 1663 cmd = instance->cmd_list[i]; 1664 if (!cmd->scmd) 1665 continue; 1666 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); 1667 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { 1668 ldio = (struct megasas_io_frame *)cmd->frame; 1669 mfi_sgl = &ldio->sgl; 1670 sgcount = ldio->sge_count; 1671 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," 1672 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1673 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, 1674 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), 1675 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); 1676 } else { 1677 pthru = (struct megasas_pthru_frame *) cmd->frame; 1678 mfi_sgl = &pthru->sgl; 1679 sgcount = pthru->sge_count; 1680 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " 1681 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1682 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, 1683 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), 1684 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); 1685 } 1686 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { 1687 for (n = 0; n < sgcount; n++) { 1688 if (IS_DMA64) 1689 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", 1690 le32_to_cpu(mfi_sgl->sge64[n].length), 1691 le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); 1692 else 1693 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", 1694 le32_to_cpu(mfi_sgl->sge32[n].length), 1695 le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); 1696 } 1697 } 1698 } /*for max_cmd*/ 1699 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); 1700 for (i = 0; i < max_cmd; i++) { 1701 1702 cmd = instance->cmd_list[i]; 1703 1704 if (cmd->sync_cmd == 1) 1705 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); 1706 } 1707 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); 1708 } 1709 1710 u32 1711 megasas_build_and_issue_cmd(struct megasas_instance *instance, 1712 struct scsi_cmnd *scmd) 1713 { 1714 struct megasas_cmd *cmd; 1715 u32 frame_count; 1716 1717 cmd = megasas_get_cmd(instance); 1718 if (!cmd) 1719 return SCSI_MLQUEUE_HOST_BUSY; 1720 1721 /* 1722 * Logical drive command 1723 */ 1724 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) 1725 frame_count = megasas_build_ldio(instance, scmd, cmd); 1726 else 1727 frame_count = megasas_build_dcdb(instance, scmd, cmd); 1728 1729 if (!frame_count) 1730 goto out_return_cmd; 1731 1732 cmd->scmd = scmd; 1733 scmd->SCp.ptr = (char *)cmd; 1734 1735 /* 1736 * Issue the command to the FW 1737 */ 1738 atomic_inc(&instance->fw_outstanding); 1739 1740 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, 1741 cmd->frame_count-1, instance->reg_set); 1742 1743 return 0; 1744 out_return_cmd: 1745 megasas_return_cmd(instance, cmd); 1746 return SCSI_MLQUEUE_HOST_BUSY; 1747 } 1748 1749 1750 /** 1751 * megasas_queue_command - Queue entry point 1752 * @scmd: SCSI command to be queued 1753 * @done: Callback entry point 1754 */ 1755 static int 1756 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 1757 { 1758 struct megasas_instance *instance; 1759 struct MR_PRIV_DEVICE *mr_device_priv_data; 1760 1761 instance = (struct megasas_instance *) 1762 scmd->device->host->hostdata; 1763 1764 if (instance->unload == 1) { 1765 scmd->result = DID_NO_CONNECT << 16; 1766 scmd->scsi_done(scmd); 1767 return 0; 1768 } 1769 1770 if (instance->issuepend_done == 0) 1771 return SCSI_MLQUEUE_HOST_BUSY; 1772 1773 1774 /* Check for an mpio path and adjust behavior */ 1775 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 1776 if (megasas_check_mpio_paths(instance, scmd) == 1777 (DID_REQUEUE << 16)) { 1778 return SCSI_MLQUEUE_HOST_BUSY; 1779 } else { 1780 scmd->result = DID_NO_CONNECT << 16; 1781 scmd->scsi_done(scmd); 1782 return 0; 1783 } 1784 } 1785 1786 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1787 scmd->result = DID_NO_CONNECT << 16; 1788 scmd->scsi_done(scmd); 1789 return 0; 1790 } 1791 1792 mr_device_priv_data = scmd->device->hostdata; 1793 if (!mr_device_priv_data) { 1794 scmd->result = DID_NO_CONNECT << 16; 1795 scmd->scsi_done(scmd); 1796 return 0; 1797 } 1798 1799 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1800 return SCSI_MLQUEUE_HOST_BUSY; 1801 1802 if (mr_device_priv_data->tm_busy) 1803 return SCSI_MLQUEUE_DEVICE_BUSY; 1804 1805 1806 scmd->result = 0; 1807 1808 if (MEGASAS_IS_LOGICAL(scmd->device) && 1809 (scmd->device->id >= instance->fw_supported_vd_count || 1810 scmd->device->lun)) { 1811 scmd->result = DID_BAD_TARGET << 16; 1812 goto out_done; 1813 } 1814 1815 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && 1816 MEGASAS_IS_LOGICAL(scmd->device) && 1817 (!instance->fw_sync_cache_support)) { 1818 scmd->result = DID_OK << 16; 1819 goto out_done; 1820 } 1821 1822 return instance->instancet->build_and_issue_cmd(instance, scmd); 1823 1824 out_done: 1825 scmd->scsi_done(scmd); 1826 return 0; 1827 } 1828 1829 static struct megasas_instance *megasas_lookup_instance(u16 host_no) 1830 { 1831 int i; 1832 1833 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 1834 1835 if ((megasas_mgmt_info.instance[i]) && 1836 (megasas_mgmt_info.instance[i]->host->host_no == host_no)) 1837 return megasas_mgmt_info.instance[i]; 1838 } 1839 1840 return NULL; 1841 } 1842 1843 /* 1844 * megasas_set_dynamic_target_properties - 1845 * Device property set by driver may not be static and it is required to be 1846 * updated after OCR 1847 * 1848 * set tm_capable. 1849 * set dma alignment (only for eedp protection enable vd). 1850 * 1851 * @sdev: OS provided scsi device 1852 * 1853 * Returns void 1854 */ 1855 void megasas_set_dynamic_target_properties(struct scsi_device *sdev, 1856 bool is_target_prop) 1857 { 1858 u16 pd_index = 0, ld; 1859 u32 device_id; 1860 struct megasas_instance *instance; 1861 struct fusion_context *fusion; 1862 struct MR_PRIV_DEVICE *mr_device_priv_data; 1863 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1864 struct MR_LD_RAID *raid; 1865 struct MR_DRV_RAID_MAP_ALL *local_map_ptr; 1866 1867 instance = megasas_lookup_instance(sdev->host->host_no); 1868 fusion = instance->ctrl_context; 1869 mr_device_priv_data = sdev->hostdata; 1870 1871 if (!fusion || !mr_device_priv_data) 1872 return; 1873 1874 if (MEGASAS_IS_LOGICAL(sdev)) { 1875 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) 1876 + sdev->id; 1877 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; 1878 ld = MR_TargetIdToLdGet(device_id, local_map_ptr); 1879 if (ld >= instance->fw_supported_vd_count) 1880 return; 1881 raid = MR_LdRaidGet(ld, local_map_ptr); 1882 1883 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) 1884 blk_queue_update_dma_alignment(sdev->request_queue, 0x7); 1885 1886 mr_device_priv_data->is_tm_capable = 1887 raid->capability.tmCapable; 1888 1889 if (!raid->flags.isEPD) 1890 sdev->no_write_same = 1; 1891 1892 } else if (instance->use_seqnum_jbod_fp) { 1893 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1894 sdev->id; 1895 pd_sync = (void *)fusion->pd_seq_sync 1896 [(instance->pd_seq_map_id - 1) & 1]; 1897 mr_device_priv_data->is_tm_capable = 1898 pd_sync->seq[pd_index].capability.tmCapable; 1899 } 1900 1901 if (is_target_prop && instance->tgt_prop->reset_tmo) { 1902 /* 1903 * If FW provides a target reset timeout value, driver will use 1904 * it. If not set, fallback to default values. 1905 */ 1906 mr_device_priv_data->target_reset_tmo = 1907 min_t(u8, instance->max_reset_tmo, 1908 instance->tgt_prop->reset_tmo); 1909 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo; 1910 } else { 1911 mr_device_priv_data->target_reset_tmo = 1912 MEGASAS_DEFAULT_TM_TIMEOUT; 1913 mr_device_priv_data->task_abort_tmo = 1914 MEGASAS_DEFAULT_TM_TIMEOUT; 1915 } 1916 } 1917 1918 /* 1919 * megasas_set_nvme_device_properties - 1920 * set nomerges=2 1921 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). 1922 * set maximum io transfer = MDTS of NVME device provided by MR firmware. 1923 * 1924 * MR firmware provides value in KB. Caller of this function converts 1925 * kb into bytes. 1926 * 1927 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, 1928 * MR firmware provides value 128 as (32 * 4K) = 128K. 1929 * 1930 * @sdev: scsi device 1931 * @max_io_size: maximum io transfer size 1932 * 1933 */ 1934 static inline void 1935 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) 1936 { 1937 struct megasas_instance *instance; 1938 u32 mr_nvme_pg_size; 1939 1940 instance = (struct megasas_instance *)sdev->host->hostdata; 1941 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, 1942 MR_DEFAULT_NVME_PAGE_SIZE); 1943 1944 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512)); 1945 1946 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue); 1947 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); 1948 } 1949 1950 /* 1951 * megasas_set_fw_assisted_qd - 1952 * set device queue depth to can_queue 1953 * set device queue depth to fw assisted qd 1954 * 1955 * @sdev: scsi device 1956 * @is_target_prop true, if fw provided target properties. 1957 */ 1958 static void megasas_set_fw_assisted_qd(struct scsi_device *sdev, 1959 bool is_target_prop) 1960 { 1961 u8 interface_type; 1962 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN; 1963 u32 tgt_device_qd; 1964 struct megasas_instance *instance; 1965 struct MR_PRIV_DEVICE *mr_device_priv_data; 1966 1967 instance = megasas_lookup_instance(sdev->host->host_no); 1968 mr_device_priv_data = sdev->hostdata; 1969 interface_type = mr_device_priv_data->interface_type; 1970 1971 switch (interface_type) { 1972 case SAS_PD: 1973 device_qd = MEGASAS_SAS_QD; 1974 break; 1975 case SATA_PD: 1976 device_qd = MEGASAS_SATA_QD; 1977 break; 1978 case NVME_PD: 1979 device_qd = MEGASAS_NVME_QD; 1980 break; 1981 } 1982 1983 if (is_target_prop) { 1984 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth); 1985 if (tgt_device_qd && 1986 (tgt_device_qd <= instance->host->can_queue)) 1987 device_qd = tgt_device_qd; 1988 } 1989 1990 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE) 1991 device_qd = instance->host->can_queue; 1992 1993 scsi_change_queue_depth(sdev, device_qd); 1994 } 1995 1996 /* 1997 * megasas_set_static_target_properties - 1998 * Device property set by driver are static and it is not required to be 1999 * updated after OCR. 2000 * 2001 * set io timeout 2002 * set device queue depth 2003 * set nvme device properties. see - megasas_set_nvme_device_properties 2004 * 2005 * @sdev: scsi device 2006 * @is_target_prop true, if fw provided target properties. 2007 */ 2008 static void megasas_set_static_target_properties(struct scsi_device *sdev, 2009 bool is_target_prop) 2010 { 2011 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; 2012 struct megasas_instance *instance; 2013 2014 instance = megasas_lookup_instance(sdev->host->host_no); 2015 2016 /* 2017 * The RAID firmware may require extended timeouts. 2018 */ 2019 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); 2020 2021 /* max_io_size_kb will be set to non zero for 2022 * nvme based vd and syspd. 2023 */ 2024 if (is_target_prop) 2025 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb); 2026 2027 if (instance->nvme_page_size && max_io_size_kb) 2028 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10)); 2029 2030 megasas_set_fw_assisted_qd(sdev, is_target_prop); 2031 } 2032 2033 2034 static int megasas_slave_configure(struct scsi_device *sdev) 2035 { 2036 u16 pd_index = 0; 2037 struct megasas_instance *instance; 2038 int ret_target_prop = DCMD_FAILED; 2039 bool is_target_prop = false; 2040 2041 instance = megasas_lookup_instance(sdev->host->host_no); 2042 if (instance->pd_list_not_supported) { 2043 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { 2044 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2045 sdev->id; 2046 if (instance->pd_list[pd_index].driveState != 2047 MR_PD_STATE_SYSTEM) 2048 return -ENXIO; 2049 } 2050 } 2051 2052 mutex_lock(&instance->reset_mutex); 2053 /* Send DCMD to Firmware and cache the information */ 2054 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) 2055 megasas_get_pd_info(instance, sdev); 2056 2057 /* Some ventura firmware may not have instance->nvme_page_size set. 2058 * Do not send MR_DCMD_DRV_GET_TARGET_PROP 2059 */ 2060 if ((instance->tgt_prop) && (instance->nvme_page_size)) 2061 ret_target_prop = megasas_get_target_prop(instance, sdev); 2062 2063 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 2064 megasas_set_static_target_properties(sdev, is_target_prop); 2065 2066 /* This sdev property may change post OCR */ 2067 megasas_set_dynamic_target_properties(sdev, is_target_prop); 2068 2069 mutex_unlock(&instance->reset_mutex); 2070 2071 return 0; 2072 } 2073 2074 static int megasas_slave_alloc(struct scsi_device *sdev) 2075 { 2076 u16 pd_index = 0; 2077 struct megasas_instance *instance ; 2078 struct MR_PRIV_DEVICE *mr_device_priv_data; 2079 2080 instance = megasas_lookup_instance(sdev->host->host_no); 2081 if (!MEGASAS_IS_LOGICAL(sdev)) { 2082 /* 2083 * Open the OS scan to the SYSTEM PD 2084 */ 2085 pd_index = 2086 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2087 sdev->id; 2088 if ((instance->pd_list_not_supported || 2089 instance->pd_list[pd_index].driveState == 2090 MR_PD_STATE_SYSTEM)) { 2091 goto scan_target; 2092 } 2093 return -ENXIO; 2094 } 2095 2096 scan_target: 2097 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), 2098 GFP_KERNEL); 2099 if (!mr_device_priv_data) 2100 return -ENOMEM; 2101 sdev->hostdata = mr_device_priv_data; 2102 2103 atomic_set(&mr_device_priv_data->r1_ldio_hint, 2104 instance->r1_ldio_hint_default); 2105 return 0; 2106 } 2107 2108 static void megasas_slave_destroy(struct scsi_device *sdev) 2109 { 2110 kfree(sdev->hostdata); 2111 sdev->hostdata = NULL; 2112 } 2113 2114 /* 2115 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a 2116 * kill adapter 2117 * @instance: Adapter soft state 2118 * 2119 */ 2120 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) 2121 { 2122 int i; 2123 struct megasas_cmd *cmd_mfi; 2124 struct megasas_cmd_fusion *cmd_fusion; 2125 struct fusion_context *fusion = instance->ctrl_context; 2126 2127 /* Find all outstanding ioctls */ 2128 if (fusion) { 2129 for (i = 0; i < instance->max_fw_cmds; i++) { 2130 cmd_fusion = fusion->cmd_list[i]; 2131 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { 2132 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; 2133 if (cmd_mfi->sync_cmd && 2134 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { 2135 cmd_mfi->frame->hdr.cmd_status = 2136 MFI_STAT_WRONG_STATE; 2137 megasas_complete_cmd(instance, 2138 cmd_mfi, DID_OK); 2139 } 2140 } 2141 } 2142 } else { 2143 for (i = 0; i < instance->max_fw_cmds; i++) { 2144 cmd_mfi = instance->cmd_list[i]; 2145 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != 2146 MFI_CMD_ABORT) 2147 megasas_complete_cmd(instance, cmd_mfi, DID_OK); 2148 } 2149 } 2150 } 2151 2152 2153 void megaraid_sas_kill_hba(struct megasas_instance *instance) 2154 { 2155 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2156 dev_warn(&instance->pdev->dev, 2157 "Adapter already dead, skipping kill HBA\n"); 2158 return; 2159 } 2160 2161 /* Set critical error to block I/O & ioctls in case caller didn't */ 2162 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2163 /* Wait 1 second to ensure IO or ioctls in build have posted */ 2164 msleep(1000); 2165 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 2166 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 2167 (instance->adapter_type != MFI_SERIES)) { 2168 if (!instance->requestorId) { 2169 writel(MFI_STOP_ADP, &instance->reg_set->doorbell); 2170 /* Flush */ 2171 readl(&instance->reg_set->doorbell); 2172 } 2173 if (instance->requestorId && instance->peerIsPresent) 2174 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 2175 } else { 2176 writel(MFI_STOP_ADP, 2177 &instance->reg_set->inbound_doorbell); 2178 } 2179 /* Complete outstanding ioctls when adapter is killed */ 2180 megasas_complete_outstanding_ioctls(instance); 2181 } 2182 2183 /** 2184 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be 2185 * restored to max value 2186 * @instance: Adapter soft state 2187 * 2188 */ 2189 void 2190 megasas_check_and_restore_queue_depth(struct megasas_instance *instance) 2191 { 2192 unsigned long flags; 2193 2194 if (instance->flag & MEGASAS_FW_BUSY 2195 && time_after(jiffies, instance->last_time + 5 * HZ) 2196 && atomic_read(&instance->fw_outstanding) < 2197 instance->throttlequeuedepth + 1) { 2198 2199 spin_lock_irqsave(instance->host->host_lock, flags); 2200 instance->flag &= ~MEGASAS_FW_BUSY; 2201 2202 instance->host->can_queue = instance->cur_can_queue; 2203 spin_unlock_irqrestore(instance->host->host_lock, flags); 2204 } 2205 } 2206 2207 /** 2208 * megasas_complete_cmd_dpc - Returns FW's controller structure 2209 * @instance_addr: Address of adapter soft state 2210 * 2211 * Tasklet to complete cmds 2212 */ 2213 static void megasas_complete_cmd_dpc(unsigned long instance_addr) 2214 { 2215 u32 producer; 2216 u32 consumer; 2217 u32 context; 2218 struct megasas_cmd *cmd; 2219 struct megasas_instance *instance = 2220 (struct megasas_instance *)instance_addr; 2221 unsigned long flags; 2222 2223 /* If we have already declared adapter dead, donot complete cmds */ 2224 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 2225 return; 2226 2227 spin_lock_irqsave(&instance->completion_lock, flags); 2228 2229 producer = le32_to_cpu(*instance->producer); 2230 consumer = le32_to_cpu(*instance->consumer); 2231 2232 while (consumer != producer) { 2233 context = le32_to_cpu(instance->reply_queue[consumer]); 2234 if (context >= instance->max_fw_cmds) { 2235 dev_err(&instance->pdev->dev, "Unexpected context value %x\n", 2236 context); 2237 BUG(); 2238 } 2239 2240 cmd = instance->cmd_list[context]; 2241 2242 megasas_complete_cmd(instance, cmd, DID_OK); 2243 2244 consumer++; 2245 if (consumer == (instance->max_fw_cmds + 1)) { 2246 consumer = 0; 2247 } 2248 } 2249 2250 *instance->consumer = cpu_to_le32(producer); 2251 2252 spin_unlock_irqrestore(&instance->completion_lock, flags); 2253 2254 /* 2255 * Check if we can restore can_queue 2256 */ 2257 megasas_check_and_restore_queue_depth(instance); 2258 } 2259 2260 static void megasas_sriov_heartbeat_handler(struct timer_list *t); 2261 2262 /** 2263 * megasas_start_timer - Initializes sriov heartbeat timer object 2264 * @instance: Adapter soft state 2265 * 2266 */ 2267 void megasas_start_timer(struct megasas_instance *instance) 2268 { 2269 struct timer_list *timer = &instance->sriov_heartbeat_timer; 2270 2271 timer_setup(timer, megasas_sriov_heartbeat_handler, 0); 2272 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF; 2273 add_timer(timer); 2274 } 2275 2276 static void 2277 megasas_internal_reset_defer_cmds(struct megasas_instance *instance); 2278 2279 static void 2280 process_fw_state_change_wq(struct work_struct *work); 2281 2282 static void megasas_do_ocr(struct megasas_instance *instance) 2283 { 2284 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 2285 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 2286 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 2287 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 2288 } 2289 instance->instancet->disable_intr(instance); 2290 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 2291 instance->issuepend_done = 0; 2292 2293 atomic_set(&instance->fw_outstanding, 0); 2294 megasas_internal_reset_defer_cmds(instance); 2295 process_fw_state_change_wq(&instance->work_init); 2296 } 2297 2298 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, 2299 int initial) 2300 { 2301 struct megasas_cmd *cmd; 2302 struct megasas_dcmd_frame *dcmd; 2303 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; 2304 dma_addr_t new_affiliation_111_h; 2305 int ld, retval = 0; 2306 u8 thisVf; 2307 2308 cmd = megasas_get_cmd(instance); 2309 2310 if (!cmd) { 2311 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" 2312 "Failed to get cmd for scsi%d\n", 2313 instance->host->host_no); 2314 return -ENOMEM; 2315 } 2316 2317 dcmd = &cmd->frame->dcmd; 2318 2319 if (!instance->vf_affiliation_111) { 2320 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2321 "affiliation for scsi%d\n", instance->host->host_no); 2322 megasas_return_cmd(instance, cmd); 2323 return -ENOMEM; 2324 } 2325 2326 if (initial) 2327 memset(instance->vf_affiliation_111, 0, 2328 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2329 else { 2330 new_affiliation_111 = 2331 dma_alloc_coherent(&instance->pdev->dev, 2332 sizeof(struct MR_LD_VF_AFFILIATION_111), 2333 &new_affiliation_111_h, GFP_KERNEL); 2334 if (!new_affiliation_111) { 2335 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2336 "memory for new affiliation for scsi%d\n", 2337 instance->host->host_no); 2338 megasas_return_cmd(instance, cmd); 2339 return -ENOMEM; 2340 } 2341 } 2342 2343 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2344 2345 dcmd->cmd = MFI_CMD_DCMD; 2346 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2347 dcmd->sge_count = 1; 2348 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2349 dcmd->timeout = 0; 2350 dcmd->pad_0 = 0; 2351 dcmd->data_xfer_len = 2352 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); 2353 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); 2354 2355 if (initial) 2356 dcmd->sgl.sge32[0].phys_addr = 2357 cpu_to_le32(instance->vf_affiliation_111_h); 2358 else 2359 dcmd->sgl.sge32[0].phys_addr = 2360 cpu_to_le32(new_affiliation_111_h); 2361 2362 dcmd->sgl.sge32[0].length = cpu_to_le32( 2363 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2364 2365 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2366 "scsi%d\n", instance->host->host_no); 2367 2368 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2369 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2370 " failed with status 0x%x for scsi%d\n", 2371 dcmd->cmd_status, instance->host->host_no); 2372 retval = 1; /* Do a scan if we couldn't get affiliation */ 2373 goto out; 2374 } 2375 2376 if (!initial) { 2377 thisVf = new_affiliation_111->thisVf; 2378 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) 2379 if (instance->vf_affiliation_111->map[ld].policy[thisVf] != 2380 new_affiliation_111->map[ld].policy[thisVf]) { 2381 dev_warn(&instance->pdev->dev, "SR-IOV: " 2382 "Got new LD/VF affiliation for scsi%d\n", 2383 instance->host->host_no); 2384 memcpy(instance->vf_affiliation_111, 2385 new_affiliation_111, 2386 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2387 retval = 1; 2388 goto out; 2389 } 2390 } 2391 out: 2392 if (new_affiliation_111) { 2393 dma_free_coherent(&instance->pdev->dev, 2394 sizeof(struct MR_LD_VF_AFFILIATION_111), 2395 new_affiliation_111, 2396 new_affiliation_111_h); 2397 } 2398 2399 megasas_return_cmd(instance, cmd); 2400 2401 return retval; 2402 } 2403 2404 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, 2405 int initial) 2406 { 2407 struct megasas_cmd *cmd; 2408 struct megasas_dcmd_frame *dcmd; 2409 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; 2410 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; 2411 dma_addr_t new_affiliation_h; 2412 int i, j, retval = 0, found = 0, doscan = 0; 2413 u8 thisVf; 2414 2415 cmd = megasas_get_cmd(instance); 2416 2417 if (!cmd) { 2418 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " 2419 "Failed to get cmd for scsi%d\n", 2420 instance->host->host_no); 2421 return -ENOMEM; 2422 } 2423 2424 dcmd = &cmd->frame->dcmd; 2425 2426 if (!instance->vf_affiliation) { 2427 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2428 "affiliation for scsi%d\n", instance->host->host_no); 2429 megasas_return_cmd(instance, cmd); 2430 return -ENOMEM; 2431 } 2432 2433 if (initial) 2434 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2435 sizeof(struct MR_LD_VF_AFFILIATION)); 2436 else { 2437 new_affiliation = 2438 dma_alloc_coherent(&instance->pdev->dev, 2439 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), 2440 &new_affiliation_h, GFP_KERNEL); 2441 if (!new_affiliation) { 2442 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2443 "memory for new affiliation for scsi%d\n", 2444 instance->host->host_no); 2445 megasas_return_cmd(instance, cmd); 2446 return -ENOMEM; 2447 } 2448 } 2449 2450 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2451 2452 dcmd->cmd = MFI_CMD_DCMD; 2453 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2454 dcmd->sge_count = 1; 2455 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2456 dcmd->timeout = 0; 2457 dcmd->pad_0 = 0; 2458 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2459 sizeof(struct MR_LD_VF_AFFILIATION)); 2460 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); 2461 2462 if (initial) 2463 dcmd->sgl.sge32[0].phys_addr = 2464 cpu_to_le32(instance->vf_affiliation_h); 2465 else 2466 dcmd->sgl.sge32[0].phys_addr = 2467 cpu_to_le32(new_affiliation_h); 2468 2469 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2470 sizeof(struct MR_LD_VF_AFFILIATION)); 2471 2472 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2473 "scsi%d\n", instance->host->host_no); 2474 2475 2476 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2477 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2478 " failed with status 0x%x for scsi%d\n", 2479 dcmd->cmd_status, instance->host->host_no); 2480 retval = 1; /* Do a scan if we couldn't get affiliation */ 2481 goto out; 2482 } 2483 2484 if (!initial) { 2485 if (!new_affiliation->ldCount) { 2486 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2487 "affiliation for passive path for scsi%d\n", 2488 instance->host->host_no); 2489 retval = 1; 2490 goto out; 2491 } 2492 newmap = new_affiliation->map; 2493 savedmap = instance->vf_affiliation->map; 2494 thisVf = new_affiliation->thisVf; 2495 for (i = 0 ; i < new_affiliation->ldCount; i++) { 2496 found = 0; 2497 for (j = 0; j < instance->vf_affiliation->ldCount; 2498 j++) { 2499 if (newmap->ref.targetId == 2500 savedmap->ref.targetId) { 2501 found = 1; 2502 if (newmap->policy[thisVf] != 2503 savedmap->policy[thisVf]) { 2504 doscan = 1; 2505 goto out; 2506 } 2507 } 2508 savedmap = (struct MR_LD_VF_MAP *) 2509 ((unsigned char *)savedmap + 2510 savedmap->size); 2511 } 2512 if (!found && newmap->policy[thisVf] != 2513 MR_LD_ACCESS_HIDDEN) { 2514 doscan = 1; 2515 goto out; 2516 } 2517 newmap = (struct MR_LD_VF_MAP *) 2518 ((unsigned char *)newmap + newmap->size); 2519 } 2520 2521 newmap = new_affiliation->map; 2522 savedmap = instance->vf_affiliation->map; 2523 2524 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { 2525 found = 0; 2526 for (j = 0 ; j < new_affiliation->ldCount; j++) { 2527 if (savedmap->ref.targetId == 2528 newmap->ref.targetId) { 2529 found = 1; 2530 if (savedmap->policy[thisVf] != 2531 newmap->policy[thisVf]) { 2532 doscan = 1; 2533 goto out; 2534 } 2535 } 2536 newmap = (struct MR_LD_VF_MAP *) 2537 ((unsigned char *)newmap + 2538 newmap->size); 2539 } 2540 if (!found && savedmap->policy[thisVf] != 2541 MR_LD_ACCESS_HIDDEN) { 2542 doscan = 1; 2543 goto out; 2544 } 2545 savedmap = (struct MR_LD_VF_MAP *) 2546 ((unsigned char *)savedmap + 2547 savedmap->size); 2548 } 2549 } 2550 out: 2551 if (doscan) { 2552 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2553 "affiliation for scsi%d\n", instance->host->host_no); 2554 memcpy(instance->vf_affiliation, new_affiliation, 2555 new_affiliation->size); 2556 retval = 1; 2557 } 2558 2559 if (new_affiliation) 2560 dma_free_coherent(&instance->pdev->dev, 2561 (MAX_LOGICAL_DRIVES + 1) * 2562 sizeof(struct MR_LD_VF_AFFILIATION), 2563 new_affiliation, new_affiliation_h); 2564 megasas_return_cmd(instance, cmd); 2565 2566 return retval; 2567 } 2568 2569 /* This function will get the current SR-IOV LD/VF affiliation */ 2570 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 2571 int initial) 2572 { 2573 int retval; 2574 2575 if (instance->PlasmaFW111) 2576 retval = megasas_get_ld_vf_affiliation_111(instance, initial); 2577 else 2578 retval = megasas_get_ld_vf_affiliation_12(instance, initial); 2579 return retval; 2580 } 2581 2582 /* This function will tell FW to start the SR-IOV heartbeat */ 2583 int megasas_sriov_start_heartbeat(struct megasas_instance *instance, 2584 int initial) 2585 { 2586 struct megasas_cmd *cmd; 2587 struct megasas_dcmd_frame *dcmd; 2588 int retval = 0; 2589 2590 cmd = megasas_get_cmd(instance); 2591 2592 if (!cmd) { 2593 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " 2594 "Failed to get cmd for scsi%d\n", 2595 instance->host->host_no); 2596 return -ENOMEM; 2597 } 2598 2599 dcmd = &cmd->frame->dcmd; 2600 2601 if (initial) { 2602 instance->hb_host_mem = 2603 dma_alloc_coherent(&instance->pdev->dev, 2604 sizeof(struct MR_CTRL_HB_HOST_MEM), 2605 &instance->hb_host_mem_h, 2606 GFP_KERNEL); 2607 if (!instance->hb_host_mem) { 2608 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" 2609 " memory for heartbeat host memory for scsi%d\n", 2610 instance->host->host_no); 2611 retval = -ENOMEM; 2612 goto out; 2613 } 2614 } 2615 2616 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2617 2618 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2619 dcmd->cmd = MFI_CMD_DCMD; 2620 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2621 dcmd->sge_count = 1; 2622 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2623 dcmd->timeout = 0; 2624 dcmd->pad_0 = 0; 2625 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2626 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); 2627 2628 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h, 2629 sizeof(struct MR_CTRL_HB_HOST_MEM)); 2630 2631 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", 2632 instance->host->host_no); 2633 2634 if ((instance->adapter_type != MFI_SERIES) && 2635 !instance->mask_interrupts) 2636 retval = megasas_issue_blocked_cmd(instance, cmd, 2637 MEGASAS_ROUTINE_WAIT_TIME_VF); 2638 else 2639 retval = megasas_issue_polled(instance, cmd); 2640 2641 if (retval) { 2642 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" 2643 "_MEM_ALLOC DCMD %s for scsi%d\n", 2644 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? 2645 "timed out" : "failed", instance->host->host_no); 2646 retval = 1; 2647 } 2648 2649 out: 2650 megasas_return_cmd(instance, cmd); 2651 2652 return retval; 2653 } 2654 2655 /* Handler for SR-IOV heartbeat */ 2656 static void megasas_sriov_heartbeat_handler(struct timer_list *t) 2657 { 2658 struct megasas_instance *instance = 2659 from_timer(instance, t, sriov_heartbeat_timer); 2660 2661 if (instance->hb_host_mem->HB.fwCounter != 2662 instance->hb_host_mem->HB.driverCounter) { 2663 instance->hb_host_mem->HB.driverCounter = 2664 instance->hb_host_mem->HB.fwCounter; 2665 mod_timer(&instance->sriov_heartbeat_timer, 2666 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 2667 } else { 2668 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " 2669 "completed for scsi%d\n", instance->host->host_no); 2670 schedule_work(&instance->work_init); 2671 } 2672 } 2673 2674 /** 2675 * megasas_wait_for_outstanding - Wait for all outstanding cmds 2676 * @instance: Adapter soft state 2677 * 2678 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to 2679 * complete all its outstanding commands. Returns error if one or more IOs 2680 * are pending after this time period. It also marks the controller dead. 2681 */ 2682 static int megasas_wait_for_outstanding(struct megasas_instance *instance) 2683 { 2684 int i, sl, outstanding; 2685 u32 reset_index; 2686 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 2687 unsigned long flags; 2688 struct list_head clist_local; 2689 struct megasas_cmd *reset_cmd; 2690 u32 fw_state; 2691 2692 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2693 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", 2694 __func__, __LINE__); 2695 return FAILED; 2696 } 2697 2698 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2699 2700 INIT_LIST_HEAD(&clist_local); 2701 spin_lock_irqsave(&instance->hba_lock, flags); 2702 list_splice_init(&instance->internal_reset_pending_q, 2703 &clist_local); 2704 spin_unlock_irqrestore(&instance->hba_lock, flags); 2705 2706 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); 2707 for (i = 0; i < wait_time; i++) { 2708 msleep(1000); 2709 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 2710 break; 2711 } 2712 2713 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2714 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); 2715 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2716 return FAILED; 2717 } 2718 2719 reset_index = 0; 2720 while (!list_empty(&clist_local)) { 2721 reset_cmd = list_entry((&clist_local)->next, 2722 struct megasas_cmd, list); 2723 list_del_init(&reset_cmd->list); 2724 if (reset_cmd->scmd) { 2725 reset_cmd->scmd->result = DID_REQUEUE << 16; 2726 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", 2727 reset_index, reset_cmd, 2728 reset_cmd->scmd->cmnd[0]); 2729 2730 reset_cmd->scmd->scsi_done(reset_cmd->scmd); 2731 megasas_return_cmd(instance, reset_cmd); 2732 } else if (reset_cmd->sync_cmd) { 2733 dev_notice(&instance->pdev->dev, "%p synch cmds" 2734 "reset queue\n", 2735 reset_cmd); 2736 2737 reset_cmd->cmd_status_drv = DCMD_INIT; 2738 instance->instancet->fire_cmd(instance, 2739 reset_cmd->frame_phys_addr, 2740 0, instance->reg_set); 2741 } else { 2742 dev_notice(&instance->pdev->dev, "%p unexpected" 2743 "cmds lst\n", 2744 reset_cmd); 2745 } 2746 reset_index++; 2747 } 2748 2749 return SUCCESS; 2750 } 2751 2752 for (i = 0; i < resetwaittime; i++) { 2753 outstanding = atomic_read(&instance->fw_outstanding); 2754 2755 if (!outstanding) 2756 break; 2757 2758 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 2759 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " 2760 "commands to complete\n",i,outstanding); 2761 /* 2762 * Call cmd completion routine. Cmd to be 2763 * be completed directly without depending on isr. 2764 */ 2765 megasas_complete_cmd_dpc((unsigned long)instance); 2766 } 2767 2768 msleep(1000); 2769 } 2770 2771 i = 0; 2772 outstanding = atomic_read(&instance->fw_outstanding); 2773 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2774 2775 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2776 goto no_outstanding; 2777 2778 if (instance->disableOnlineCtrlReset) 2779 goto kill_hba_and_failed; 2780 do { 2781 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { 2782 dev_info(&instance->pdev->dev, 2783 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n", 2784 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); 2785 if (i == 3) 2786 goto kill_hba_and_failed; 2787 megasas_do_ocr(instance); 2788 2789 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2790 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", 2791 __func__, __LINE__); 2792 return FAILED; 2793 } 2794 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", 2795 __func__, __LINE__); 2796 2797 for (sl = 0; sl < 10; sl++) 2798 msleep(500); 2799 2800 outstanding = atomic_read(&instance->fw_outstanding); 2801 2802 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2803 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2804 goto no_outstanding; 2805 } 2806 i++; 2807 } while (i <= 3); 2808 2809 no_outstanding: 2810 2811 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", 2812 __func__, __LINE__); 2813 return SUCCESS; 2814 2815 kill_hba_and_failed: 2816 2817 /* Reset not supported, kill adapter */ 2818 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" 2819 " disableOnlineCtrlReset %d fw_outstanding %d \n", 2820 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, 2821 atomic_read(&instance->fw_outstanding)); 2822 megasas_dump_pending_frames(instance); 2823 megaraid_sas_kill_hba(instance); 2824 2825 return FAILED; 2826 } 2827 2828 /** 2829 * megasas_generic_reset - Generic reset routine 2830 * @scmd: Mid-layer SCSI command 2831 * 2832 * This routine implements a generic reset handler for device, bus and host 2833 * reset requests. Device, bus and host specific reset handlers can use this 2834 * function after they do their specific tasks. 2835 */ 2836 static int megasas_generic_reset(struct scsi_cmnd *scmd) 2837 { 2838 int ret_val; 2839 struct megasas_instance *instance; 2840 2841 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2842 2843 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", 2844 scmd->cmnd[0], scmd->retries); 2845 2846 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2847 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); 2848 return FAILED; 2849 } 2850 2851 ret_val = megasas_wait_for_outstanding(instance); 2852 if (ret_val == SUCCESS) 2853 dev_notice(&instance->pdev->dev, "reset successful\n"); 2854 else 2855 dev_err(&instance->pdev->dev, "failed to do reset\n"); 2856 2857 return ret_val; 2858 } 2859 2860 /** 2861 * megasas_reset_timer - quiesce the adapter if required 2862 * @scmd: scsi cmnd 2863 * 2864 * Sets the FW busy flag and reduces the host->can_queue if the 2865 * cmd has not been completed within the timeout period. 2866 */ 2867 static enum 2868 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) 2869 { 2870 struct megasas_instance *instance; 2871 unsigned long flags; 2872 2873 if (time_after(jiffies, scmd->jiffies_at_alloc + 2874 (scmd_timeout * 2) * HZ)) { 2875 return BLK_EH_DONE; 2876 } 2877 2878 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2879 if (!(instance->flag & MEGASAS_FW_BUSY)) { 2880 /* FW is busy, throttle IO */ 2881 spin_lock_irqsave(instance->host->host_lock, flags); 2882 2883 instance->host->can_queue = instance->throttlequeuedepth; 2884 instance->last_time = jiffies; 2885 instance->flag |= MEGASAS_FW_BUSY; 2886 2887 spin_unlock_irqrestore(instance->host->host_lock, flags); 2888 } 2889 return BLK_EH_RESET_TIMER; 2890 } 2891 2892 /** 2893 * megasas_dump - This function will print hexdump of provided buffer. 2894 * @buf: Buffer to be dumped 2895 * @sz: Size in bytes 2896 * @format: Different formats of dumping e.g. format=n will 2897 * cause only 'n' 32 bit words to be dumped in a single 2898 * line. 2899 */ 2900 inline void 2901 megasas_dump(void *buf, int sz, int format) 2902 { 2903 int i; 2904 __le32 *buf_loc = (__le32 *)buf; 2905 2906 for (i = 0; i < (sz / sizeof(__le32)); i++) { 2907 if ((i % format) == 0) { 2908 if (i != 0) 2909 printk(KERN_CONT "\n"); 2910 printk(KERN_CONT "%08x: ", (i * 4)); 2911 } 2912 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i])); 2913 } 2914 printk(KERN_CONT "\n"); 2915 } 2916 2917 /** 2918 * megasas_dump_reg_set - This function will print hexdump of register set 2919 * @buf: Buffer to be dumped 2920 * @sz: Size in bytes 2921 * @format: Different formats of dumping e.g. format=n will 2922 * cause only 'n' 32 bit words to be dumped in a 2923 * single line. 2924 */ 2925 inline void 2926 megasas_dump_reg_set(void __iomem *reg_set) 2927 { 2928 unsigned int i, sz = 256; 2929 u32 __iomem *reg = (u32 __iomem *)reg_set; 2930 2931 for (i = 0; i < (sz / sizeof(u32)); i++) 2932 printk("%08x: %08x\n", (i * 4), readl(®[i])); 2933 } 2934 2935 /** 2936 * megasas_dump_fusion_io - This function will print key details 2937 * of SCSI IO 2938 * @scmd: SCSI command pointer of SCSI IO 2939 */ 2940 void 2941 megasas_dump_fusion_io(struct scsi_cmnd *scmd) 2942 { 2943 struct megasas_cmd_fusion *cmd; 2944 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; 2945 struct megasas_instance *instance; 2946 2947 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr; 2948 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2949 2950 scmd_printk(KERN_INFO, scmd, 2951 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n", 2952 scmd, scmd->retries, scmd->allowed); 2953 scsi_print_command(scmd); 2954 2955 if (cmd) { 2956 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; 2957 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n"); 2958 scmd_printk(KERN_INFO, scmd, 2959 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n", 2960 req_desc->SCSIIO.RequestFlags, 2961 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID, 2962 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle); 2963 2964 printk(KERN_INFO "IO request frame:\n"); 2965 megasas_dump(cmd->io_request, 2966 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8); 2967 printk(KERN_INFO "Chain frame:\n"); 2968 megasas_dump(cmd->sg_frame, 2969 instance->max_chain_frame_sz, 8); 2970 } 2971 2972 } 2973 2974 /* 2975 * megasas_dump_sys_regs - This function will dump system registers through 2976 * sysfs. 2977 * @reg_set: Pointer to System register set. 2978 * @buf: Buffer to which output is to be written. 2979 * @return: Number of bytes written to buffer. 2980 */ 2981 static inline ssize_t 2982 megasas_dump_sys_regs(void __iomem *reg_set, char *buf) 2983 { 2984 unsigned int i, sz = 256; 2985 int bytes_wrote = 0; 2986 char *loc = (char *)buf; 2987 u32 __iomem *reg = (u32 __iomem *)reg_set; 2988 2989 for (i = 0; i < sz / sizeof(u32); i++) { 2990 bytes_wrote += scnprintf(loc + bytes_wrote, 2991 PAGE_SIZE - bytes_wrote, 2992 "%08x: %08x\n", (i * 4), 2993 readl(®[i])); 2994 } 2995 return bytes_wrote; 2996 } 2997 2998 /** 2999 * megasas_reset_bus_host - Bus & host reset handler entry point 3000 */ 3001 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 3002 { 3003 int ret; 3004 struct megasas_instance *instance; 3005 3006 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3007 3008 scmd_printk(KERN_INFO, scmd, 3009 "OCR is requested due to IO timeout!!\n"); 3010 3011 scmd_printk(KERN_INFO, scmd, 3012 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 3013 scmd->device->host->shost_state, 3014 scsi_host_busy(scmd->device->host), 3015 atomic_read(&instance->fw_outstanding)); 3016 /* 3017 * First wait for all commands to complete 3018 */ 3019 if (instance->adapter_type == MFI_SERIES) { 3020 ret = megasas_generic_reset(scmd); 3021 } else { 3022 megasas_dump_fusion_io(scmd); 3023 ret = megasas_reset_fusion(scmd->device->host, 3024 SCSIIO_TIMEOUT_OCR); 3025 } 3026 3027 return ret; 3028 } 3029 3030 /** 3031 * megasas_task_abort - Issues task abort request to firmware 3032 * (supported only for fusion adapters) 3033 * @scmd: SCSI command pointer 3034 */ 3035 static int megasas_task_abort(struct scsi_cmnd *scmd) 3036 { 3037 int ret; 3038 struct megasas_instance *instance; 3039 3040 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3041 3042 if (instance->adapter_type != MFI_SERIES) 3043 ret = megasas_task_abort_fusion(scmd); 3044 else { 3045 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 3046 ret = FAILED; 3047 } 3048 3049 return ret; 3050 } 3051 3052 /** 3053 * megasas_reset_target: Issues target reset request to firmware 3054 * (supported only for fusion adapters) 3055 * @scmd: SCSI command pointer 3056 */ 3057 static int megasas_reset_target(struct scsi_cmnd *scmd) 3058 { 3059 int ret; 3060 struct megasas_instance *instance; 3061 3062 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3063 3064 if (instance->adapter_type != MFI_SERIES) 3065 ret = megasas_reset_target_fusion(scmd); 3066 else { 3067 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 3068 ret = FAILED; 3069 } 3070 3071 return ret; 3072 } 3073 3074 /** 3075 * megasas_bios_param - Returns disk geometry for a disk 3076 * @sdev: device handle 3077 * @bdev: block device 3078 * @capacity: drive capacity 3079 * @geom: geometry parameters 3080 */ 3081 static int 3082 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, 3083 sector_t capacity, int geom[]) 3084 { 3085 int heads; 3086 int sectors; 3087 sector_t cylinders; 3088 unsigned long tmp; 3089 3090 /* Default heads (64) & sectors (32) */ 3091 heads = 64; 3092 sectors = 32; 3093 3094 tmp = heads * sectors; 3095 cylinders = capacity; 3096 3097 sector_div(cylinders, tmp); 3098 3099 /* 3100 * Handle extended translation size for logical drives > 1Gb 3101 */ 3102 3103 if (capacity >= 0x200000) { 3104 heads = 255; 3105 sectors = 63; 3106 tmp = heads*sectors; 3107 cylinders = capacity; 3108 sector_div(cylinders, tmp); 3109 } 3110 3111 geom[0] = heads; 3112 geom[1] = sectors; 3113 geom[2] = cylinders; 3114 3115 return 0; 3116 } 3117 3118 static void megasas_aen_polling(struct work_struct *work); 3119 3120 /** 3121 * megasas_service_aen - Processes an event notification 3122 * @instance: Adapter soft state 3123 * @cmd: AEN command completed by the ISR 3124 * 3125 * For AEN, driver sends a command down to FW that is held by the FW till an 3126 * event occurs. When an event of interest occurs, FW completes the command 3127 * that it was previously holding. 3128 * 3129 * This routines sends SIGIO signal to processes that have registered with the 3130 * driver for AEN. 3131 */ 3132 static void 3133 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 3134 { 3135 unsigned long flags; 3136 3137 /* 3138 * Don't signal app if it is just an aborted previously registered aen 3139 */ 3140 if ((!cmd->abort_aen) && (instance->unload == 0)) { 3141 spin_lock_irqsave(&poll_aen_lock, flags); 3142 megasas_poll_wait_aen = 1; 3143 spin_unlock_irqrestore(&poll_aen_lock, flags); 3144 wake_up(&megasas_poll_wait); 3145 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 3146 } 3147 else 3148 cmd->abort_aen = 0; 3149 3150 instance->aen_cmd = NULL; 3151 3152 megasas_return_cmd(instance, cmd); 3153 3154 if ((instance->unload == 0) && 3155 ((instance->issuepend_done == 1))) { 3156 struct megasas_aen_event *ev; 3157 3158 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3159 if (!ev) { 3160 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 3161 } else { 3162 ev->instance = instance; 3163 instance->ev = ev; 3164 INIT_DELAYED_WORK(&ev->hotplug_work, 3165 megasas_aen_polling); 3166 schedule_delayed_work(&ev->hotplug_work, 0); 3167 } 3168 } 3169 } 3170 3171 static ssize_t 3172 fw_crash_buffer_store(struct device *cdev, 3173 struct device_attribute *attr, const char *buf, size_t count) 3174 { 3175 struct Scsi_Host *shost = class_to_shost(cdev); 3176 struct megasas_instance *instance = 3177 (struct megasas_instance *) shost->hostdata; 3178 int val = 0; 3179 unsigned long flags; 3180 3181 if (kstrtoint(buf, 0, &val) != 0) 3182 return -EINVAL; 3183 3184 spin_lock_irqsave(&instance->crashdump_lock, flags); 3185 instance->fw_crash_buffer_offset = val; 3186 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3187 return strlen(buf); 3188 } 3189 3190 static ssize_t 3191 fw_crash_buffer_show(struct device *cdev, 3192 struct device_attribute *attr, char *buf) 3193 { 3194 struct Scsi_Host *shost = class_to_shost(cdev); 3195 struct megasas_instance *instance = 3196 (struct megasas_instance *) shost->hostdata; 3197 u32 size; 3198 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 3199 unsigned long chunk_left_bytes; 3200 unsigned long src_addr; 3201 unsigned long flags; 3202 u32 buff_offset; 3203 3204 spin_lock_irqsave(&instance->crashdump_lock, flags); 3205 buff_offset = instance->fw_crash_buffer_offset; 3206 if (!instance->crash_dump_buf && 3207 !((instance->fw_crash_state == AVAILABLE) || 3208 (instance->fw_crash_state == COPYING))) { 3209 dev_err(&instance->pdev->dev, 3210 "Firmware crash dump is not available\n"); 3211 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3212 return -EINVAL; 3213 } 3214 3215 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 3216 dev_err(&instance->pdev->dev, 3217 "Firmware crash dump offset is out of range\n"); 3218 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3219 return 0; 3220 } 3221 3222 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 3223 chunk_left_bytes = dmachunk - (buff_offset % dmachunk); 3224 size = (size > chunk_left_bytes) ? chunk_left_bytes : size; 3225 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3226 3227 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 3228 (buff_offset % dmachunk); 3229 memcpy(buf, (void *)src_addr, size); 3230 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3231 3232 return size; 3233 } 3234 3235 static ssize_t 3236 fw_crash_buffer_size_show(struct device *cdev, 3237 struct device_attribute *attr, char *buf) 3238 { 3239 struct Scsi_Host *shost = class_to_shost(cdev); 3240 struct megasas_instance *instance = 3241 (struct megasas_instance *) shost->hostdata; 3242 3243 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3244 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3245 } 3246 3247 static ssize_t 3248 fw_crash_state_store(struct device *cdev, 3249 struct device_attribute *attr, const char *buf, size_t count) 3250 { 3251 struct Scsi_Host *shost = class_to_shost(cdev); 3252 struct megasas_instance *instance = 3253 (struct megasas_instance *) shost->hostdata; 3254 int val = 0; 3255 unsigned long flags; 3256 3257 if (kstrtoint(buf, 0, &val) != 0) 3258 return -EINVAL; 3259 3260 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3261 dev_err(&instance->pdev->dev, "application updates invalid " 3262 "firmware crash state\n"); 3263 return -EINVAL; 3264 } 3265 3266 instance->fw_crash_state = val; 3267 3268 if ((val == COPIED) || (val == COPY_ERROR)) { 3269 spin_lock_irqsave(&instance->crashdump_lock, flags); 3270 megasas_free_host_crash_buffer(instance); 3271 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3272 if (val == COPY_ERROR) 3273 dev_info(&instance->pdev->dev, "application failed to " 3274 "copy Firmware crash dump\n"); 3275 else 3276 dev_info(&instance->pdev->dev, "Firmware crash dump " 3277 "copied successfully\n"); 3278 } 3279 return strlen(buf); 3280 } 3281 3282 static ssize_t 3283 fw_crash_state_show(struct device *cdev, 3284 struct device_attribute *attr, char *buf) 3285 { 3286 struct Scsi_Host *shost = class_to_shost(cdev); 3287 struct megasas_instance *instance = 3288 (struct megasas_instance *) shost->hostdata; 3289 3290 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3291 } 3292 3293 static ssize_t 3294 page_size_show(struct device *cdev, 3295 struct device_attribute *attr, char *buf) 3296 { 3297 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3298 } 3299 3300 static ssize_t 3301 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3302 char *buf) 3303 { 3304 struct Scsi_Host *shost = class_to_shost(cdev); 3305 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3306 3307 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3308 } 3309 3310 static ssize_t 3311 fw_cmds_outstanding_show(struct device *cdev, 3312 struct device_attribute *attr, char *buf) 3313 { 3314 struct Scsi_Host *shost = class_to_shost(cdev); 3315 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3316 3317 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); 3318 } 3319 3320 static ssize_t 3321 enable_sdev_max_qd_show(struct device *cdev, 3322 struct device_attribute *attr, char *buf) 3323 { 3324 struct Scsi_Host *shost = class_to_shost(cdev); 3325 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3326 3327 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); 3328 } 3329 3330 static ssize_t 3331 enable_sdev_max_qd_store(struct device *cdev, 3332 struct device_attribute *attr, const char *buf, size_t count) 3333 { 3334 struct Scsi_Host *shost = class_to_shost(cdev); 3335 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3336 u32 val = 0; 3337 bool is_target_prop; 3338 int ret_target_prop = DCMD_FAILED; 3339 struct scsi_device *sdev; 3340 3341 if (kstrtou32(buf, 0, &val) != 0) { 3342 pr_err("megasas: could not set enable_sdev_max_qd\n"); 3343 return -EINVAL; 3344 } 3345 3346 mutex_lock(&instance->reset_mutex); 3347 if (val) 3348 instance->enable_sdev_max_qd = true; 3349 else 3350 instance->enable_sdev_max_qd = false; 3351 3352 shost_for_each_device(sdev, shost) { 3353 ret_target_prop = megasas_get_target_prop(instance, sdev); 3354 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 3355 megasas_set_fw_assisted_qd(sdev, is_target_prop); 3356 } 3357 mutex_unlock(&instance->reset_mutex); 3358 3359 return strlen(buf); 3360 } 3361 3362 static ssize_t 3363 dump_system_regs_show(struct device *cdev, 3364 struct device_attribute *attr, char *buf) 3365 { 3366 struct Scsi_Host *shost = class_to_shost(cdev); 3367 struct megasas_instance *instance = 3368 (struct megasas_instance *)shost->hostdata; 3369 3370 return megasas_dump_sys_regs(instance->reg_set, buf); 3371 } 3372 3373 static ssize_t 3374 raid_map_id_show(struct device *cdev, struct device_attribute *attr, 3375 char *buf) 3376 { 3377 struct Scsi_Host *shost = class_to_shost(cdev); 3378 struct megasas_instance *instance = 3379 (struct megasas_instance *)shost->hostdata; 3380 3381 return snprintf(buf, PAGE_SIZE, "%ld\n", 3382 (unsigned long)instance->map_id); 3383 } 3384 3385 static DEVICE_ATTR_RW(fw_crash_buffer); 3386 static DEVICE_ATTR_RO(fw_crash_buffer_size); 3387 static DEVICE_ATTR_RW(fw_crash_state); 3388 static DEVICE_ATTR_RO(page_size); 3389 static DEVICE_ATTR_RO(ldio_outstanding); 3390 static DEVICE_ATTR_RO(fw_cmds_outstanding); 3391 static DEVICE_ATTR_RW(enable_sdev_max_qd); 3392 static DEVICE_ATTR_RO(dump_system_regs); 3393 static DEVICE_ATTR_RO(raid_map_id); 3394 3395 static struct device_attribute *megaraid_host_attrs[] = { 3396 &dev_attr_fw_crash_buffer_size, 3397 &dev_attr_fw_crash_buffer, 3398 &dev_attr_fw_crash_state, 3399 &dev_attr_page_size, 3400 &dev_attr_ldio_outstanding, 3401 &dev_attr_fw_cmds_outstanding, 3402 &dev_attr_enable_sdev_max_qd, 3403 &dev_attr_dump_system_regs, 3404 &dev_attr_raid_map_id, 3405 NULL, 3406 }; 3407 3408 /* 3409 * Scsi host template for megaraid_sas driver 3410 */ 3411 static struct scsi_host_template megasas_template = { 3412 3413 .module = THIS_MODULE, 3414 .name = "Avago SAS based MegaRAID driver", 3415 .proc_name = "megaraid_sas", 3416 .slave_configure = megasas_slave_configure, 3417 .slave_alloc = megasas_slave_alloc, 3418 .slave_destroy = megasas_slave_destroy, 3419 .queuecommand = megasas_queue_command, 3420 .eh_target_reset_handler = megasas_reset_target, 3421 .eh_abort_handler = megasas_task_abort, 3422 .eh_host_reset_handler = megasas_reset_bus_host, 3423 .eh_timed_out = megasas_reset_timer, 3424 .shost_attrs = megaraid_host_attrs, 3425 .bios_param = megasas_bios_param, 3426 .change_queue_depth = scsi_change_queue_depth, 3427 .max_segment_size = 0xffffffff, 3428 }; 3429 3430 /** 3431 * megasas_complete_int_cmd - Completes an internal command 3432 * @instance: Adapter soft state 3433 * @cmd: Command to be completed 3434 * 3435 * The megasas_issue_blocked_cmd() function waits for a command to complete 3436 * after it issues a command. This function wakes up that waiting routine by 3437 * calling wake_up() on the wait queue. 3438 */ 3439 static void 3440 megasas_complete_int_cmd(struct megasas_instance *instance, 3441 struct megasas_cmd *cmd) 3442 { 3443 if (cmd->cmd_status_drv == DCMD_INIT) 3444 cmd->cmd_status_drv = 3445 (cmd->frame->io.cmd_status == MFI_STAT_OK) ? 3446 DCMD_SUCCESS : DCMD_FAILED; 3447 3448 wake_up(&instance->int_cmd_wait_q); 3449 } 3450 3451 /** 3452 * megasas_complete_abort - Completes aborting a command 3453 * @instance: Adapter soft state 3454 * @cmd: Cmd that was issued to abort another cmd 3455 * 3456 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3457 * after it issues an abort on a previously issued command. This function 3458 * wakes up all functions waiting on the same wait queue. 3459 */ 3460 static void 3461 megasas_complete_abort(struct megasas_instance *instance, 3462 struct megasas_cmd *cmd) 3463 { 3464 if (cmd->sync_cmd) { 3465 cmd->sync_cmd = 0; 3466 cmd->cmd_status_drv = DCMD_SUCCESS; 3467 wake_up(&instance->abort_cmd_wait_q); 3468 } 3469 } 3470 3471 /** 3472 * megasas_complete_cmd - Completes a command 3473 * @instance: Adapter soft state 3474 * @cmd: Command to be completed 3475 * @alt_status: If non-zero, use this value as status to 3476 * SCSI mid-layer instead of the value returned 3477 * by the FW. This should be used if caller wants 3478 * an alternate status (as in the case of aborted 3479 * commands) 3480 */ 3481 void 3482 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3483 u8 alt_status) 3484 { 3485 int exception = 0; 3486 struct megasas_header *hdr = &cmd->frame->hdr; 3487 unsigned long flags; 3488 struct fusion_context *fusion = instance->ctrl_context; 3489 u32 opcode, status; 3490 3491 /* flag for the retry reset */ 3492 cmd->retry_for_fw_reset = 0; 3493 3494 if (cmd->scmd) 3495 cmd->scmd->SCp.ptr = NULL; 3496 3497 switch (hdr->cmd) { 3498 case MFI_CMD_INVALID: 3499 /* Some older 1068 controller FW may keep a pended 3500 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3501 when booting the kdump kernel. Ignore this command to 3502 prevent a kernel panic on shutdown of the kdump kernel. */ 3503 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3504 "completed\n"); 3505 dev_warn(&instance->pdev->dev, "If you have a controller " 3506 "other than PERC5, please upgrade your firmware\n"); 3507 break; 3508 case MFI_CMD_PD_SCSI_IO: 3509 case MFI_CMD_LD_SCSI_IO: 3510 3511 /* 3512 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3513 * issued either through an IO path or an IOCTL path. If it 3514 * was via IOCTL, we will send it to internal completion. 3515 */ 3516 if (cmd->sync_cmd) { 3517 cmd->sync_cmd = 0; 3518 megasas_complete_int_cmd(instance, cmd); 3519 break; 3520 } 3521 /* fall through */ 3522 3523 case MFI_CMD_LD_READ: 3524 case MFI_CMD_LD_WRITE: 3525 3526 if (alt_status) { 3527 cmd->scmd->result = alt_status << 16; 3528 exception = 1; 3529 } 3530 3531 if (exception) { 3532 3533 atomic_dec(&instance->fw_outstanding); 3534 3535 scsi_dma_unmap(cmd->scmd); 3536 cmd->scmd->scsi_done(cmd->scmd); 3537 megasas_return_cmd(instance, cmd); 3538 3539 break; 3540 } 3541 3542 switch (hdr->cmd_status) { 3543 3544 case MFI_STAT_OK: 3545 cmd->scmd->result = DID_OK << 16; 3546 break; 3547 3548 case MFI_STAT_SCSI_IO_FAILED: 3549 case MFI_STAT_LD_INIT_IN_PROGRESS: 3550 cmd->scmd->result = 3551 (DID_ERROR << 16) | hdr->scsi_status; 3552 break; 3553 3554 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3555 3556 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3557 3558 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3559 memset(cmd->scmd->sense_buffer, 0, 3560 SCSI_SENSE_BUFFERSIZE); 3561 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3562 hdr->sense_len); 3563 3564 cmd->scmd->result |= DRIVER_SENSE << 24; 3565 } 3566 3567 break; 3568 3569 case MFI_STAT_LD_OFFLINE: 3570 case MFI_STAT_DEVICE_NOT_FOUND: 3571 cmd->scmd->result = DID_BAD_TARGET << 16; 3572 break; 3573 3574 default: 3575 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3576 hdr->cmd_status); 3577 cmd->scmd->result = DID_ERROR << 16; 3578 break; 3579 } 3580 3581 atomic_dec(&instance->fw_outstanding); 3582 3583 scsi_dma_unmap(cmd->scmd); 3584 cmd->scmd->scsi_done(cmd->scmd); 3585 megasas_return_cmd(instance, cmd); 3586 3587 break; 3588 3589 case MFI_CMD_SMP: 3590 case MFI_CMD_STP: 3591 case MFI_CMD_NVME: 3592 case MFI_CMD_TOOLBOX: 3593 megasas_complete_int_cmd(instance, cmd); 3594 break; 3595 3596 case MFI_CMD_DCMD: 3597 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3598 /* Check for LD map update */ 3599 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3600 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3601 fusion->fast_path_io = 0; 3602 spin_lock_irqsave(instance->host->host_lock, flags); 3603 status = cmd->frame->hdr.cmd_status; 3604 instance->map_update_cmd = NULL; 3605 if (status != MFI_STAT_OK) { 3606 if (status != MFI_STAT_NOT_FOUND) 3607 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3608 cmd->frame->hdr.cmd_status); 3609 else { 3610 megasas_return_cmd(instance, cmd); 3611 spin_unlock_irqrestore( 3612 instance->host->host_lock, 3613 flags); 3614 break; 3615 } 3616 } 3617 3618 megasas_return_cmd(instance, cmd); 3619 3620 /* 3621 * Set fast path IO to ZERO. 3622 * Validate Map will set proper value. 3623 * Meanwhile all IOs will go as LD IO. 3624 */ 3625 if (status == MFI_STAT_OK && 3626 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { 3627 instance->map_id++; 3628 fusion->fast_path_io = 1; 3629 } else { 3630 fusion->fast_path_io = 0; 3631 } 3632 3633 megasas_sync_map_info(instance); 3634 spin_unlock_irqrestore(instance->host->host_lock, 3635 flags); 3636 break; 3637 } 3638 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3639 opcode == MR_DCMD_CTRL_EVENT_GET) { 3640 spin_lock_irqsave(&poll_aen_lock, flags); 3641 megasas_poll_wait_aen = 0; 3642 spin_unlock_irqrestore(&poll_aen_lock, flags); 3643 } 3644 3645 /* FW has an updated PD sequence */ 3646 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3647 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3648 3649 spin_lock_irqsave(instance->host->host_lock, flags); 3650 status = cmd->frame->hdr.cmd_status; 3651 instance->jbod_seq_cmd = NULL; 3652 megasas_return_cmd(instance, cmd); 3653 3654 if (status == MFI_STAT_OK) { 3655 instance->pd_seq_map_id++; 3656 /* Re-register a pd sync seq num cmd */ 3657 if (megasas_sync_pd_seq_num(instance, true)) 3658 instance->use_seqnum_jbod_fp = false; 3659 } else 3660 instance->use_seqnum_jbod_fp = false; 3661 3662 spin_unlock_irqrestore(instance->host->host_lock, flags); 3663 break; 3664 } 3665 3666 /* 3667 * See if got an event notification 3668 */ 3669 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3670 megasas_service_aen(instance, cmd); 3671 else 3672 megasas_complete_int_cmd(instance, cmd); 3673 3674 break; 3675 3676 case MFI_CMD_ABORT: 3677 /* 3678 * Cmd issued to abort another cmd returned 3679 */ 3680 megasas_complete_abort(instance, cmd); 3681 break; 3682 3683 default: 3684 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3685 hdr->cmd); 3686 megasas_complete_int_cmd(instance, cmd); 3687 break; 3688 } 3689 } 3690 3691 /** 3692 * megasas_issue_pending_cmds_again - issue all pending cmds 3693 * in FW again because of the fw reset 3694 * @instance: Adapter soft state 3695 */ 3696 static inline void 3697 megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3698 { 3699 struct megasas_cmd *cmd; 3700 struct list_head clist_local; 3701 union megasas_evt_class_locale class_locale; 3702 unsigned long flags; 3703 u32 seq_num; 3704 3705 INIT_LIST_HEAD(&clist_local); 3706 spin_lock_irqsave(&instance->hba_lock, flags); 3707 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3708 spin_unlock_irqrestore(&instance->hba_lock, flags); 3709 3710 while (!list_empty(&clist_local)) { 3711 cmd = list_entry((&clist_local)->next, 3712 struct megasas_cmd, list); 3713 list_del_init(&cmd->list); 3714 3715 if (cmd->sync_cmd || cmd->scmd) { 3716 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3717 "detected to be pending while HBA reset\n", 3718 cmd, cmd->scmd, cmd->sync_cmd); 3719 3720 cmd->retry_for_fw_reset++; 3721 3722 if (cmd->retry_for_fw_reset == 3) { 3723 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3724 "was tried multiple times during reset." 3725 "Shutting down the HBA\n", 3726 cmd, cmd->scmd, cmd->sync_cmd); 3727 instance->instancet->disable_intr(instance); 3728 atomic_set(&instance->fw_reset_no_pci_access, 1); 3729 megaraid_sas_kill_hba(instance); 3730 return; 3731 } 3732 } 3733 3734 if (cmd->sync_cmd == 1) { 3735 if (cmd->scmd) { 3736 dev_notice(&instance->pdev->dev, "unexpected" 3737 "cmd attached to internal command!\n"); 3738 } 3739 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3740 "on the internal reset queue," 3741 "issue it again.\n", cmd); 3742 cmd->cmd_status_drv = DCMD_INIT; 3743 instance->instancet->fire_cmd(instance, 3744 cmd->frame_phys_addr, 3745 0, instance->reg_set); 3746 } else if (cmd->scmd) { 3747 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3748 "detected on the internal queue, issue again.\n", 3749 cmd, cmd->scmd->cmnd[0]); 3750 3751 atomic_inc(&instance->fw_outstanding); 3752 instance->instancet->fire_cmd(instance, 3753 cmd->frame_phys_addr, 3754 cmd->frame_count-1, instance->reg_set); 3755 } else { 3756 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3757 "internal reset defer list while re-issue!!\n", 3758 cmd); 3759 } 3760 } 3761 3762 if (instance->aen_cmd) { 3763 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3764 megasas_return_cmd(instance, instance->aen_cmd); 3765 3766 instance->aen_cmd = NULL; 3767 } 3768 3769 /* 3770 * Initiate AEN (Asynchronous Event Notification) 3771 */ 3772 seq_num = instance->last_seq_num; 3773 class_locale.members.reserved = 0; 3774 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3775 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3776 3777 megasas_register_aen(instance, seq_num, class_locale.word); 3778 } 3779 3780 /** 3781 * Move the internal reset pending commands to a deferred queue. 3782 * 3783 * We move the commands pending at internal reset time to a 3784 * pending queue. This queue would be flushed after successful 3785 * completion of the internal reset sequence. if the internal reset 3786 * did not complete in time, the kernel reset handler would flush 3787 * these commands. 3788 **/ 3789 static void 3790 megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3791 { 3792 struct megasas_cmd *cmd; 3793 int i; 3794 u16 max_cmd = instance->max_fw_cmds; 3795 u32 defer_index; 3796 unsigned long flags; 3797 3798 defer_index = 0; 3799 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3800 for (i = 0; i < max_cmd; i++) { 3801 cmd = instance->cmd_list[i]; 3802 if (cmd->sync_cmd == 1 || cmd->scmd) { 3803 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3804 "on the defer queue as internal\n", 3805 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3806 3807 if (!list_empty(&cmd->list)) { 3808 dev_notice(&instance->pdev->dev, "ERROR while" 3809 " moving this cmd:%p, %d %p, it was" 3810 "discovered on some list?\n", 3811 cmd, cmd->sync_cmd, cmd->scmd); 3812 3813 list_del_init(&cmd->list); 3814 } 3815 defer_index++; 3816 list_add_tail(&cmd->list, 3817 &instance->internal_reset_pending_q); 3818 } 3819 } 3820 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3821 } 3822 3823 3824 static void 3825 process_fw_state_change_wq(struct work_struct *work) 3826 { 3827 struct megasas_instance *instance = 3828 container_of(work, struct megasas_instance, work_init); 3829 u32 wait; 3830 unsigned long flags; 3831 3832 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3833 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3834 atomic_read(&instance->adprecovery)); 3835 return ; 3836 } 3837 3838 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3839 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3840 "state, restarting it...\n"); 3841 3842 instance->instancet->disable_intr(instance); 3843 atomic_set(&instance->fw_outstanding, 0); 3844 3845 atomic_set(&instance->fw_reset_no_pci_access, 1); 3846 instance->instancet->adp_reset(instance, instance->reg_set); 3847 atomic_set(&instance->fw_reset_no_pci_access, 0); 3848 3849 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3850 "initiating next stage...\n"); 3851 3852 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3853 "state 2 starting...\n"); 3854 3855 /* waiting for about 20 second before start the second init */ 3856 for (wait = 0; wait < 30; wait++) { 3857 msleep(1000); 3858 } 3859 3860 if (megasas_transition_to_ready(instance, 1)) { 3861 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3862 3863 atomic_set(&instance->fw_reset_no_pci_access, 1); 3864 megaraid_sas_kill_hba(instance); 3865 return ; 3866 } 3867 3868 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3869 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3870 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3871 ) { 3872 *instance->consumer = *instance->producer; 3873 } else { 3874 *instance->consumer = 0; 3875 *instance->producer = 0; 3876 } 3877 3878 megasas_issue_init_mfi(instance); 3879 3880 spin_lock_irqsave(&instance->hba_lock, flags); 3881 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 3882 spin_unlock_irqrestore(&instance->hba_lock, flags); 3883 instance->instancet->enable_intr(instance); 3884 3885 megasas_issue_pending_cmds_again(instance); 3886 instance->issuepend_done = 1; 3887 } 3888 } 3889 3890 /** 3891 * megasas_deplete_reply_queue - Processes all completed commands 3892 * @instance: Adapter soft state 3893 * @alt_status: Alternate status to be returned to 3894 * SCSI mid-layer instead of the status 3895 * returned by the FW 3896 * Note: this must be called with hba lock held 3897 */ 3898 static int 3899 megasas_deplete_reply_queue(struct megasas_instance *instance, 3900 u8 alt_status) 3901 { 3902 u32 mfiStatus; 3903 u32 fw_state; 3904 3905 if ((mfiStatus = instance->instancet->check_reset(instance, 3906 instance->reg_set)) == 1) { 3907 return IRQ_HANDLED; 3908 } 3909 3910 mfiStatus = instance->instancet->clear_intr(instance); 3911 if (mfiStatus == 0) { 3912 /* Hardware may not set outbound_intr_status in MSI-X mode */ 3913 if (!instance->msix_vectors) 3914 return IRQ_NONE; 3915 } 3916 3917 instance->mfiStatus = mfiStatus; 3918 3919 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 3920 fw_state = instance->instancet->read_fw_status_reg( 3921 instance) & MFI_STATE_MASK; 3922 3923 if (fw_state != MFI_STATE_FAULT) { 3924 dev_notice(&instance->pdev->dev, "fw state:%x\n", 3925 fw_state); 3926 } 3927 3928 if ((fw_state == MFI_STATE_FAULT) && 3929 (instance->disableOnlineCtrlReset == 0)) { 3930 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 3931 3932 if ((instance->pdev->device == 3933 PCI_DEVICE_ID_LSI_SAS1064R) || 3934 (instance->pdev->device == 3935 PCI_DEVICE_ID_DELL_PERC5) || 3936 (instance->pdev->device == 3937 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 3938 3939 *instance->consumer = 3940 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 3941 } 3942 3943 3944 instance->instancet->disable_intr(instance); 3945 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 3946 instance->issuepend_done = 0; 3947 3948 atomic_set(&instance->fw_outstanding, 0); 3949 megasas_internal_reset_defer_cmds(instance); 3950 3951 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 3952 fw_state, atomic_read(&instance->adprecovery)); 3953 3954 schedule_work(&instance->work_init); 3955 return IRQ_HANDLED; 3956 3957 } else { 3958 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 3959 fw_state, instance->disableOnlineCtrlReset); 3960 } 3961 } 3962 3963 tasklet_schedule(&instance->isr_tasklet); 3964 return IRQ_HANDLED; 3965 } 3966 /** 3967 * megasas_isr - isr entry point 3968 */ 3969 static irqreturn_t megasas_isr(int irq, void *devp) 3970 { 3971 struct megasas_irq_context *irq_context = devp; 3972 struct megasas_instance *instance = irq_context->instance; 3973 unsigned long flags; 3974 irqreturn_t rc; 3975 3976 if (atomic_read(&instance->fw_reset_no_pci_access)) 3977 return IRQ_HANDLED; 3978 3979 spin_lock_irqsave(&instance->hba_lock, flags); 3980 rc = megasas_deplete_reply_queue(instance, DID_OK); 3981 spin_unlock_irqrestore(&instance->hba_lock, flags); 3982 3983 return rc; 3984 } 3985 3986 /** 3987 * megasas_transition_to_ready - Move the FW to READY state 3988 * @instance: Adapter soft state 3989 * 3990 * During the initialization, FW passes can potentially be in any one of 3991 * several possible states. If the FW in operational, waiting-for-handshake 3992 * states, driver must take steps to bring it to ready state. Otherwise, it 3993 * has to wait for the ready state. 3994 */ 3995 int 3996 megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 3997 { 3998 int i; 3999 u8 max_wait; 4000 u32 fw_state; 4001 u32 abs_state, curr_abs_state; 4002 4003 abs_state = instance->instancet->read_fw_status_reg(instance); 4004 fw_state = abs_state & MFI_STATE_MASK; 4005 4006 if (fw_state != MFI_STATE_READY) 4007 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 4008 " state\n"); 4009 4010 while (fw_state != MFI_STATE_READY) { 4011 4012 switch (fw_state) { 4013 4014 case MFI_STATE_FAULT: 4015 dev_printk(KERN_ERR, &instance->pdev->dev, 4016 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", 4017 abs_state & MFI_STATE_FAULT_CODE, 4018 abs_state & MFI_STATE_FAULT_SUBCODE, __func__); 4019 if (ocr) { 4020 max_wait = MEGASAS_RESET_WAIT_TIME; 4021 break; 4022 } else { 4023 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4024 megasas_dump_reg_set(instance->reg_set); 4025 return -ENODEV; 4026 } 4027 4028 case MFI_STATE_WAIT_HANDSHAKE: 4029 /* 4030 * Set the CLR bit in inbound doorbell 4031 */ 4032 if ((instance->pdev->device == 4033 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4034 (instance->pdev->device == 4035 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4036 (instance->adapter_type != MFI_SERIES)) 4037 writel( 4038 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4039 &instance->reg_set->doorbell); 4040 else 4041 writel( 4042 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4043 &instance->reg_set->inbound_doorbell); 4044 4045 max_wait = MEGASAS_RESET_WAIT_TIME; 4046 break; 4047 4048 case MFI_STATE_BOOT_MESSAGE_PENDING: 4049 if ((instance->pdev->device == 4050 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4051 (instance->pdev->device == 4052 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4053 (instance->adapter_type != MFI_SERIES)) 4054 writel(MFI_INIT_HOTPLUG, 4055 &instance->reg_set->doorbell); 4056 else 4057 writel(MFI_INIT_HOTPLUG, 4058 &instance->reg_set->inbound_doorbell); 4059 4060 max_wait = MEGASAS_RESET_WAIT_TIME; 4061 break; 4062 4063 case MFI_STATE_OPERATIONAL: 4064 /* 4065 * Bring it to READY state; assuming max wait 10 secs 4066 */ 4067 instance->instancet->disable_intr(instance); 4068 if ((instance->pdev->device == 4069 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4070 (instance->pdev->device == 4071 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4072 (instance->adapter_type != MFI_SERIES)) { 4073 writel(MFI_RESET_FLAGS, 4074 &instance->reg_set->doorbell); 4075 4076 if (instance->adapter_type != MFI_SERIES) { 4077 for (i = 0; i < (10 * 1000); i += 20) { 4078 if (megasas_readl( 4079 instance, 4080 &instance-> 4081 reg_set-> 4082 doorbell) & 1) 4083 msleep(20); 4084 else 4085 break; 4086 } 4087 } 4088 } else 4089 writel(MFI_RESET_FLAGS, 4090 &instance->reg_set->inbound_doorbell); 4091 4092 max_wait = MEGASAS_RESET_WAIT_TIME; 4093 break; 4094 4095 case MFI_STATE_UNDEFINED: 4096 /* 4097 * This state should not last for more than 2 seconds 4098 */ 4099 max_wait = MEGASAS_RESET_WAIT_TIME; 4100 break; 4101 4102 case MFI_STATE_BB_INIT: 4103 max_wait = MEGASAS_RESET_WAIT_TIME; 4104 break; 4105 4106 case MFI_STATE_FW_INIT: 4107 max_wait = MEGASAS_RESET_WAIT_TIME; 4108 break; 4109 4110 case MFI_STATE_FW_INIT_2: 4111 max_wait = MEGASAS_RESET_WAIT_TIME; 4112 break; 4113 4114 case MFI_STATE_DEVICE_SCAN: 4115 max_wait = MEGASAS_RESET_WAIT_TIME; 4116 break; 4117 4118 case MFI_STATE_FLUSH_CACHE: 4119 max_wait = MEGASAS_RESET_WAIT_TIME; 4120 break; 4121 4122 default: 4123 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 4124 fw_state); 4125 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4126 megasas_dump_reg_set(instance->reg_set); 4127 return -ENODEV; 4128 } 4129 4130 /* 4131 * The cur_state should not last for more than max_wait secs 4132 */ 4133 for (i = 0; i < max_wait * 50; i++) { 4134 curr_abs_state = instance->instancet-> 4135 read_fw_status_reg(instance); 4136 4137 if (abs_state == curr_abs_state) { 4138 msleep(20); 4139 } else 4140 break; 4141 } 4142 4143 /* 4144 * Return error if fw_state hasn't changed after max_wait 4145 */ 4146 if (curr_abs_state == abs_state) { 4147 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 4148 "in %d secs\n", fw_state, max_wait); 4149 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4150 megasas_dump_reg_set(instance->reg_set); 4151 return -ENODEV; 4152 } 4153 4154 abs_state = curr_abs_state; 4155 fw_state = curr_abs_state & MFI_STATE_MASK; 4156 } 4157 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 4158 4159 return 0; 4160 } 4161 4162 /** 4163 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 4164 * @instance: Adapter soft state 4165 */ 4166 static void megasas_teardown_frame_pool(struct megasas_instance *instance) 4167 { 4168 int i; 4169 u16 max_cmd = instance->max_mfi_cmds; 4170 struct megasas_cmd *cmd; 4171 4172 if (!instance->frame_dma_pool) 4173 return; 4174 4175 /* 4176 * Return all frames to pool 4177 */ 4178 for (i = 0; i < max_cmd; i++) { 4179 4180 cmd = instance->cmd_list[i]; 4181 4182 if (cmd->frame) 4183 dma_pool_free(instance->frame_dma_pool, cmd->frame, 4184 cmd->frame_phys_addr); 4185 4186 if (cmd->sense) 4187 dma_pool_free(instance->sense_dma_pool, cmd->sense, 4188 cmd->sense_phys_addr); 4189 } 4190 4191 /* 4192 * Now destroy the pool itself 4193 */ 4194 dma_pool_destroy(instance->frame_dma_pool); 4195 dma_pool_destroy(instance->sense_dma_pool); 4196 4197 instance->frame_dma_pool = NULL; 4198 instance->sense_dma_pool = NULL; 4199 } 4200 4201 /** 4202 * megasas_create_frame_pool - Creates DMA pool for cmd frames 4203 * @instance: Adapter soft state 4204 * 4205 * Each command packet has an embedded DMA memory buffer that is used for 4206 * filling MFI frame and the SG list that immediately follows the frame. This 4207 * function creates those DMA memory buffers for each command packet by using 4208 * PCI pool facility. 4209 */ 4210 static int megasas_create_frame_pool(struct megasas_instance *instance) 4211 { 4212 int i; 4213 u16 max_cmd; 4214 u32 frame_count; 4215 struct megasas_cmd *cmd; 4216 4217 max_cmd = instance->max_mfi_cmds; 4218 4219 /* 4220 * For MFI controllers. 4221 * max_num_sge = 60 4222 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 4223 * Total 960 byte (15 MFI frame of 64 byte) 4224 * 4225 * Fusion adapter require only 3 extra frame. 4226 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 4227 * max_sge_sz = 12 byte (sizeof megasas_sge64) 4228 * Total 192 byte (3 MFI frame of 64 byte) 4229 */ 4230 frame_count = (instance->adapter_type == MFI_SERIES) ? 4231 (15 + 1) : (3 + 1); 4232 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 4233 /* 4234 * Use DMA pool facility provided by PCI layer 4235 */ 4236 instance->frame_dma_pool = dma_pool_create("megasas frame pool", 4237 &instance->pdev->dev, 4238 instance->mfi_frame_size, 256, 0); 4239 4240 if (!instance->frame_dma_pool) { 4241 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 4242 return -ENOMEM; 4243 } 4244 4245 instance->sense_dma_pool = dma_pool_create("megasas sense pool", 4246 &instance->pdev->dev, 128, 4247 4, 0); 4248 4249 if (!instance->sense_dma_pool) { 4250 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 4251 4252 dma_pool_destroy(instance->frame_dma_pool); 4253 instance->frame_dma_pool = NULL; 4254 4255 return -ENOMEM; 4256 } 4257 4258 /* 4259 * Allocate and attach a frame to each of the commands in cmd_list. 4260 * By making cmd->index as the context instead of the &cmd, we can 4261 * always use 32bit context regardless of the architecture 4262 */ 4263 for (i = 0; i < max_cmd; i++) { 4264 4265 cmd = instance->cmd_list[i]; 4266 4267 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, 4268 GFP_KERNEL, &cmd->frame_phys_addr); 4269 4270 cmd->sense = dma_pool_alloc(instance->sense_dma_pool, 4271 GFP_KERNEL, &cmd->sense_phys_addr); 4272 4273 /* 4274 * megasas_teardown_frame_pool() takes care of freeing 4275 * whatever has been allocated 4276 */ 4277 if (!cmd->frame || !cmd->sense) { 4278 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); 4279 megasas_teardown_frame_pool(instance); 4280 return -ENOMEM; 4281 } 4282 4283 cmd->frame->io.context = cpu_to_le32(cmd->index); 4284 cmd->frame->io.pad_0 = 0; 4285 if ((instance->adapter_type == MFI_SERIES) && reset_devices) 4286 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 4287 } 4288 4289 return 0; 4290 } 4291 4292 /** 4293 * megasas_free_cmds - Free all the cmds in the free cmd pool 4294 * @instance: Adapter soft state 4295 */ 4296 void megasas_free_cmds(struct megasas_instance *instance) 4297 { 4298 int i; 4299 4300 /* First free the MFI frame pool */ 4301 megasas_teardown_frame_pool(instance); 4302 4303 /* Free all the commands in the cmd_list */ 4304 for (i = 0; i < instance->max_mfi_cmds; i++) 4305 4306 kfree(instance->cmd_list[i]); 4307 4308 /* Free the cmd_list buffer itself */ 4309 kfree(instance->cmd_list); 4310 instance->cmd_list = NULL; 4311 4312 INIT_LIST_HEAD(&instance->cmd_pool); 4313 } 4314 4315 /** 4316 * megasas_alloc_cmds - Allocates the command packets 4317 * @instance: Adapter soft state 4318 * 4319 * Each command that is issued to the FW, whether IO commands from the OS or 4320 * internal commands like IOCTLs, are wrapped in local data structure called 4321 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4322 * the FW. 4323 * 4324 * Each frame has a 32-bit field called context (tag). This context is used 4325 * to get back the megasas_cmd from the frame when a frame gets completed in 4326 * the ISR. Typically the address of the megasas_cmd itself would be used as 4327 * the context. But we wanted to keep the differences between 32 and 64 bit 4328 * systems to the mininum. We always use 32 bit integers for the context. In 4329 * this driver, the 32 bit values are the indices into an array cmd_list. 4330 * This array is used only to look up the megasas_cmd given the context. The 4331 * free commands themselves are maintained in a linked list called cmd_pool. 4332 */ 4333 int megasas_alloc_cmds(struct megasas_instance *instance) 4334 { 4335 int i; 4336 int j; 4337 u16 max_cmd; 4338 struct megasas_cmd *cmd; 4339 4340 max_cmd = instance->max_mfi_cmds; 4341 4342 /* 4343 * instance->cmd_list is an array of struct megasas_cmd pointers. 4344 * Allocate the dynamic array first and then allocate individual 4345 * commands. 4346 */ 4347 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4348 4349 if (!instance->cmd_list) { 4350 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4351 return -ENOMEM; 4352 } 4353 4354 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); 4355 4356 for (i = 0; i < max_cmd; i++) { 4357 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4358 GFP_KERNEL); 4359 4360 if (!instance->cmd_list[i]) { 4361 4362 for (j = 0; j < i; j++) 4363 kfree(instance->cmd_list[j]); 4364 4365 kfree(instance->cmd_list); 4366 instance->cmd_list = NULL; 4367 4368 return -ENOMEM; 4369 } 4370 } 4371 4372 for (i = 0; i < max_cmd; i++) { 4373 cmd = instance->cmd_list[i]; 4374 memset(cmd, 0, sizeof(struct megasas_cmd)); 4375 cmd->index = i; 4376 cmd->scmd = NULL; 4377 cmd->instance = instance; 4378 4379 list_add_tail(&cmd->list, &instance->cmd_pool); 4380 } 4381 4382 /* 4383 * Create a frame pool and assign one frame to each cmd 4384 */ 4385 if (megasas_create_frame_pool(instance)) { 4386 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4387 megasas_free_cmds(instance); 4388 return -ENOMEM; 4389 } 4390 4391 return 0; 4392 } 4393 4394 /* 4395 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4396 * @instance: Adapter soft state 4397 * 4398 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4399 * or FW is not under OCR. 4400 */ 4401 inline int 4402 dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4403 4404 if (instance->adapter_type == MFI_SERIES) 4405 return KILL_ADAPTER; 4406 else if (instance->unload || 4407 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, 4408 &instance->reset_flags)) 4409 return IGNORE_TIMEOUT; 4410 else 4411 return INITIATE_OCR; 4412 } 4413 4414 static void 4415 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4416 { 4417 int ret; 4418 struct megasas_cmd *cmd; 4419 struct megasas_dcmd_frame *dcmd; 4420 4421 struct MR_PRIV_DEVICE *mr_device_priv_data; 4422 u16 device_id = 0; 4423 4424 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4425 cmd = megasas_get_cmd(instance); 4426 4427 if (!cmd) { 4428 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4429 return; 4430 } 4431 4432 dcmd = &cmd->frame->dcmd; 4433 4434 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4435 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4436 4437 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4438 dcmd->cmd = MFI_CMD_DCMD; 4439 dcmd->cmd_status = 0xFF; 4440 dcmd->sge_count = 1; 4441 dcmd->flags = MFI_FRAME_DIR_READ; 4442 dcmd->timeout = 0; 4443 dcmd->pad_0 = 0; 4444 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4445 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4446 4447 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, 4448 sizeof(struct MR_PD_INFO)); 4449 4450 if ((instance->adapter_type != MFI_SERIES) && 4451 !instance->mask_interrupts) 4452 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4453 else 4454 ret = megasas_issue_polled(instance, cmd); 4455 4456 switch (ret) { 4457 case DCMD_SUCCESS: 4458 mr_device_priv_data = sdev->hostdata; 4459 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4460 mr_device_priv_data->interface_type = 4461 instance->pd_info->state.ddf.pdType.intf; 4462 break; 4463 4464 case DCMD_TIMEOUT: 4465 4466 switch (dcmd_timeout_ocr_possible(instance)) { 4467 case INITIATE_OCR: 4468 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4469 mutex_unlock(&instance->reset_mutex); 4470 megasas_reset_fusion(instance->host, 4471 MFI_IO_TIMEOUT_OCR); 4472 mutex_lock(&instance->reset_mutex); 4473 break; 4474 case KILL_ADAPTER: 4475 megaraid_sas_kill_hba(instance); 4476 break; 4477 case IGNORE_TIMEOUT: 4478 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4479 __func__, __LINE__); 4480 break; 4481 } 4482 4483 break; 4484 } 4485 4486 if (ret != DCMD_TIMEOUT) 4487 megasas_return_cmd(instance, cmd); 4488 4489 return; 4490 } 4491 /* 4492 * megasas_get_pd_list_info - Returns FW's pd_list structure 4493 * @instance: Adapter soft state 4494 * @pd_list: pd_list structure 4495 * 4496 * Issues an internal command (DCMD) to get the FW's controller PD 4497 * list structure. This information is mainly used to find out SYSTEM 4498 * supported by the FW. 4499 */ 4500 static int 4501 megasas_get_pd_list(struct megasas_instance *instance) 4502 { 4503 int ret = 0, pd_index = 0; 4504 struct megasas_cmd *cmd; 4505 struct megasas_dcmd_frame *dcmd; 4506 struct MR_PD_LIST *ci; 4507 struct MR_PD_ADDRESS *pd_addr; 4508 4509 if (instance->pd_list_not_supported) { 4510 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4511 "not supported by firmware\n"); 4512 return ret; 4513 } 4514 4515 ci = instance->pd_list_buf; 4516 4517 cmd = megasas_get_cmd(instance); 4518 4519 if (!cmd) { 4520 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4521 return -ENOMEM; 4522 } 4523 4524 dcmd = &cmd->frame->dcmd; 4525 4526 memset(ci, 0, sizeof(*ci)); 4527 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4528 4529 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4530 dcmd->mbox.b[1] = 0; 4531 dcmd->cmd = MFI_CMD_DCMD; 4532 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4533 dcmd->sge_count = 1; 4534 dcmd->flags = MFI_FRAME_DIR_READ; 4535 dcmd->timeout = 0; 4536 dcmd->pad_0 = 0; 4537 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4538 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4539 4540 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, 4541 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); 4542 4543 if ((instance->adapter_type != MFI_SERIES) && 4544 !instance->mask_interrupts) 4545 ret = megasas_issue_blocked_cmd(instance, cmd, 4546 MFI_IO_TIMEOUT_SECS); 4547 else 4548 ret = megasas_issue_polled(instance, cmd); 4549 4550 switch (ret) { 4551 case DCMD_FAILED: 4552 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4553 "failed/not supported by firmware\n"); 4554 4555 if (instance->adapter_type != MFI_SERIES) 4556 megaraid_sas_kill_hba(instance); 4557 else 4558 instance->pd_list_not_supported = 1; 4559 break; 4560 case DCMD_TIMEOUT: 4561 4562 switch (dcmd_timeout_ocr_possible(instance)) { 4563 case INITIATE_OCR: 4564 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4565 /* 4566 * DCMD failed from AEN path. 4567 * AEN path already hold reset_mutex to avoid PCI access 4568 * while OCR is in progress. 4569 */ 4570 mutex_unlock(&instance->reset_mutex); 4571 megasas_reset_fusion(instance->host, 4572 MFI_IO_TIMEOUT_OCR); 4573 mutex_lock(&instance->reset_mutex); 4574 break; 4575 case KILL_ADAPTER: 4576 megaraid_sas_kill_hba(instance); 4577 break; 4578 case IGNORE_TIMEOUT: 4579 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4580 __func__, __LINE__); 4581 break; 4582 } 4583 4584 break; 4585 4586 case DCMD_SUCCESS: 4587 pd_addr = ci->addr; 4588 if (megasas_dbg_lvl & LD_PD_DEBUG) 4589 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", 4590 __func__, le32_to_cpu(ci->count)); 4591 4592 if ((le32_to_cpu(ci->count) > 4593 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4594 break; 4595 4596 memset(instance->local_pd_list, 0, 4597 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4598 4599 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4600 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4601 le16_to_cpu(pd_addr->deviceId); 4602 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4603 pd_addr->scsiDevType; 4604 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4605 MR_PD_STATE_SYSTEM; 4606 if (megasas_dbg_lvl & LD_PD_DEBUG) 4607 dev_info(&instance->pdev->dev, 4608 "PD%d: targetID: 0x%03x deviceType:0x%x\n", 4609 pd_index, le16_to_cpu(pd_addr->deviceId), 4610 pd_addr->scsiDevType); 4611 pd_addr++; 4612 } 4613 4614 memcpy(instance->pd_list, instance->local_pd_list, 4615 sizeof(instance->pd_list)); 4616 break; 4617 4618 } 4619 4620 if (ret != DCMD_TIMEOUT) 4621 megasas_return_cmd(instance, cmd); 4622 4623 return ret; 4624 } 4625 4626 /* 4627 * megasas_get_ld_list_info - Returns FW's ld_list structure 4628 * @instance: Adapter soft state 4629 * @ld_list: ld_list structure 4630 * 4631 * Issues an internal command (DCMD) to get the FW's controller PD 4632 * list structure. This information is mainly used to find out SYSTEM 4633 * supported by the FW. 4634 */ 4635 static int 4636 megasas_get_ld_list(struct megasas_instance *instance) 4637 { 4638 int ret = 0, ld_index = 0, ids = 0; 4639 struct megasas_cmd *cmd; 4640 struct megasas_dcmd_frame *dcmd; 4641 struct MR_LD_LIST *ci; 4642 dma_addr_t ci_h = 0; 4643 u32 ld_count; 4644 4645 ci = instance->ld_list_buf; 4646 ci_h = instance->ld_list_buf_h; 4647 4648 cmd = megasas_get_cmd(instance); 4649 4650 if (!cmd) { 4651 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4652 return -ENOMEM; 4653 } 4654 4655 dcmd = &cmd->frame->dcmd; 4656 4657 memset(ci, 0, sizeof(*ci)); 4658 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4659 4660 if (instance->supportmax256vd) 4661 dcmd->mbox.b[0] = 1; 4662 dcmd->cmd = MFI_CMD_DCMD; 4663 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4664 dcmd->sge_count = 1; 4665 dcmd->flags = MFI_FRAME_DIR_READ; 4666 dcmd->timeout = 0; 4667 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4668 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4669 dcmd->pad_0 = 0; 4670 4671 megasas_set_dma_settings(instance, dcmd, ci_h, 4672 sizeof(struct MR_LD_LIST)); 4673 4674 if ((instance->adapter_type != MFI_SERIES) && 4675 !instance->mask_interrupts) 4676 ret = megasas_issue_blocked_cmd(instance, cmd, 4677 MFI_IO_TIMEOUT_SECS); 4678 else 4679 ret = megasas_issue_polled(instance, cmd); 4680 4681 ld_count = le32_to_cpu(ci->ldCount); 4682 4683 switch (ret) { 4684 case DCMD_FAILED: 4685 megaraid_sas_kill_hba(instance); 4686 break; 4687 case DCMD_TIMEOUT: 4688 4689 switch (dcmd_timeout_ocr_possible(instance)) { 4690 case INITIATE_OCR: 4691 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4692 /* 4693 * DCMD failed from AEN path. 4694 * AEN path already hold reset_mutex to avoid PCI access 4695 * while OCR is in progress. 4696 */ 4697 mutex_unlock(&instance->reset_mutex); 4698 megasas_reset_fusion(instance->host, 4699 MFI_IO_TIMEOUT_OCR); 4700 mutex_lock(&instance->reset_mutex); 4701 break; 4702 case KILL_ADAPTER: 4703 megaraid_sas_kill_hba(instance); 4704 break; 4705 case IGNORE_TIMEOUT: 4706 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4707 __func__, __LINE__); 4708 break; 4709 } 4710 4711 break; 4712 4713 case DCMD_SUCCESS: 4714 if (megasas_dbg_lvl & LD_PD_DEBUG) 4715 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4716 __func__, ld_count); 4717 4718 if (ld_count > instance->fw_supported_vd_count) 4719 break; 4720 4721 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4722 4723 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4724 if (ci->ldList[ld_index].state != 0) { 4725 ids = ci->ldList[ld_index].ref.targetId; 4726 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4727 if (megasas_dbg_lvl & LD_PD_DEBUG) 4728 dev_info(&instance->pdev->dev, 4729 "LD%d: targetID: 0x%03x\n", 4730 ld_index, ids); 4731 } 4732 } 4733 4734 break; 4735 } 4736 4737 if (ret != DCMD_TIMEOUT) 4738 megasas_return_cmd(instance, cmd); 4739 4740 return ret; 4741 } 4742 4743 /** 4744 * megasas_ld_list_query - Returns FW's ld_list structure 4745 * @instance: Adapter soft state 4746 * @ld_list: ld_list structure 4747 * 4748 * Issues an internal command (DCMD) to get the FW's controller PD 4749 * list structure. This information is mainly used to find out SYSTEM 4750 * supported by the FW. 4751 */ 4752 static int 4753 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4754 { 4755 int ret = 0, ld_index = 0, ids = 0; 4756 struct megasas_cmd *cmd; 4757 struct megasas_dcmd_frame *dcmd; 4758 struct MR_LD_TARGETID_LIST *ci; 4759 dma_addr_t ci_h = 0; 4760 u32 tgtid_count; 4761 4762 ci = instance->ld_targetid_list_buf; 4763 ci_h = instance->ld_targetid_list_buf_h; 4764 4765 cmd = megasas_get_cmd(instance); 4766 4767 if (!cmd) { 4768 dev_warn(&instance->pdev->dev, 4769 "megasas_ld_list_query: Failed to get cmd\n"); 4770 return -ENOMEM; 4771 } 4772 4773 dcmd = &cmd->frame->dcmd; 4774 4775 memset(ci, 0, sizeof(*ci)); 4776 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4777 4778 dcmd->mbox.b[0] = query_type; 4779 if (instance->supportmax256vd) 4780 dcmd->mbox.b[2] = 1; 4781 4782 dcmd->cmd = MFI_CMD_DCMD; 4783 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4784 dcmd->sge_count = 1; 4785 dcmd->flags = MFI_FRAME_DIR_READ; 4786 dcmd->timeout = 0; 4787 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4788 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4789 dcmd->pad_0 = 0; 4790 4791 megasas_set_dma_settings(instance, dcmd, ci_h, 4792 sizeof(struct MR_LD_TARGETID_LIST)); 4793 4794 if ((instance->adapter_type != MFI_SERIES) && 4795 !instance->mask_interrupts) 4796 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4797 else 4798 ret = megasas_issue_polled(instance, cmd); 4799 4800 switch (ret) { 4801 case DCMD_FAILED: 4802 dev_info(&instance->pdev->dev, 4803 "DCMD not supported by firmware - %s %d\n", 4804 __func__, __LINE__); 4805 ret = megasas_get_ld_list(instance); 4806 break; 4807 case DCMD_TIMEOUT: 4808 switch (dcmd_timeout_ocr_possible(instance)) { 4809 case INITIATE_OCR: 4810 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4811 /* 4812 * DCMD failed from AEN path. 4813 * AEN path already hold reset_mutex to avoid PCI access 4814 * while OCR is in progress. 4815 */ 4816 mutex_unlock(&instance->reset_mutex); 4817 megasas_reset_fusion(instance->host, 4818 MFI_IO_TIMEOUT_OCR); 4819 mutex_lock(&instance->reset_mutex); 4820 break; 4821 case KILL_ADAPTER: 4822 megaraid_sas_kill_hba(instance); 4823 break; 4824 case IGNORE_TIMEOUT: 4825 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4826 __func__, __LINE__); 4827 break; 4828 } 4829 4830 break; 4831 case DCMD_SUCCESS: 4832 tgtid_count = le32_to_cpu(ci->count); 4833 4834 if (megasas_dbg_lvl & LD_PD_DEBUG) 4835 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4836 __func__, tgtid_count); 4837 4838 if ((tgtid_count > (instance->fw_supported_vd_count))) 4839 break; 4840 4841 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4842 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4843 ids = ci->targetId[ld_index]; 4844 instance->ld_ids[ids] = ci->targetId[ld_index]; 4845 if (megasas_dbg_lvl & LD_PD_DEBUG) 4846 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", 4847 ld_index, ci->targetId[ld_index]); 4848 } 4849 4850 break; 4851 } 4852 4853 if (ret != DCMD_TIMEOUT) 4854 megasas_return_cmd(instance, cmd); 4855 4856 return ret; 4857 } 4858 4859 /** 4860 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET 4861 * dcmd.mbox - reserved 4862 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure 4863 * Desc: This DCMD will return the combined device list 4864 * Status: MFI_STAT_OK - List returned successfully 4865 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been 4866 * disabled 4867 * @instance: Adapter soft state 4868 * @is_probe: Driver probe check 4869 * Return: 0 if DCMD succeeded 4870 * non-zero if failed 4871 */ 4872 static int 4873 megasas_host_device_list_query(struct megasas_instance *instance, 4874 bool is_probe) 4875 { 4876 int ret, i, target_id; 4877 struct megasas_cmd *cmd; 4878 struct megasas_dcmd_frame *dcmd; 4879 struct MR_HOST_DEVICE_LIST *ci; 4880 u32 count; 4881 dma_addr_t ci_h; 4882 4883 ci = instance->host_device_list_buf; 4884 ci_h = instance->host_device_list_buf_h; 4885 4886 cmd = megasas_get_cmd(instance); 4887 4888 if (!cmd) { 4889 dev_warn(&instance->pdev->dev, 4890 "%s: failed to get cmd\n", 4891 __func__); 4892 return -ENOMEM; 4893 } 4894 4895 dcmd = &cmd->frame->dcmd; 4896 4897 memset(ci, 0, sizeof(*ci)); 4898 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4899 4900 dcmd->mbox.b[0] = is_probe ? 0 : 1; 4901 dcmd->cmd = MFI_CMD_DCMD; 4902 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4903 dcmd->sge_count = 1; 4904 dcmd->flags = MFI_FRAME_DIR_READ; 4905 dcmd->timeout = 0; 4906 dcmd->pad_0 = 0; 4907 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); 4908 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); 4909 4910 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); 4911 4912 if (!instance->mask_interrupts) { 4913 ret = megasas_issue_blocked_cmd(instance, cmd, 4914 MFI_IO_TIMEOUT_SECS); 4915 } else { 4916 ret = megasas_issue_polled(instance, cmd); 4917 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4918 } 4919 4920 switch (ret) { 4921 case DCMD_SUCCESS: 4922 /* Fill the internal pd_list and ld_ids array based on 4923 * targetIds returned by FW 4924 */ 4925 count = le32_to_cpu(ci->count); 4926 4927 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) 4928 break; 4929 4930 if (megasas_dbg_lvl & LD_PD_DEBUG) 4931 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", 4932 __func__, count); 4933 4934 memset(instance->local_pd_list, 0, 4935 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4936 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4937 for (i = 0; i < count; i++) { 4938 target_id = le16_to_cpu(ci->host_device_list[i].target_id); 4939 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { 4940 instance->local_pd_list[target_id].tid = target_id; 4941 instance->local_pd_list[target_id].driveType = 4942 ci->host_device_list[i].scsi_type; 4943 instance->local_pd_list[target_id].driveState = 4944 MR_PD_STATE_SYSTEM; 4945 if (megasas_dbg_lvl & LD_PD_DEBUG) 4946 dev_info(&instance->pdev->dev, 4947 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", 4948 i, target_id, ci->host_device_list[i].scsi_type); 4949 } else { 4950 instance->ld_ids[target_id] = target_id; 4951 if (megasas_dbg_lvl & LD_PD_DEBUG) 4952 dev_info(&instance->pdev->dev, 4953 "Device %d: LD targetID: 0x%03x\n", 4954 i, target_id); 4955 } 4956 } 4957 4958 memcpy(instance->pd_list, instance->local_pd_list, 4959 sizeof(instance->pd_list)); 4960 break; 4961 4962 case DCMD_TIMEOUT: 4963 switch (dcmd_timeout_ocr_possible(instance)) { 4964 case INITIATE_OCR: 4965 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4966 mutex_unlock(&instance->reset_mutex); 4967 megasas_reset_fusion(instance->host, 4968 MFI_IO_TIMEOUT_OCR); 4969 mutex_lock(&instance->reset_mutex); 4970 break; 4971 case KILL_ADAPTER: 4972 megaraid_sas_kill_hba(instance); 4973 break; 4974 case IGNORE_TIMEOUT: 4975 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4976 __func__, __LINE__); 4977 break; 4978 } 4979 break; 4980 case DCMD_FAILED: 4981 dev_err(&instance->pdev->dev, 4982 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", 4983 __func__); 4984 break; 4985 } 4986 4987 if (ret != DCMD_TIMEOUT) 4988 megasas_return_cmd(instance, cmd); 4989 4990 return ret; 4991 } 4992 4993 /* 4994 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 4995 * instance : Controller's instance 4996 */ 4997 static void megasas_update_ext_vd_details(struct megasas_instance *instance) 4998 { 4999 struct fusion_context *fusion; 5000 u32 ventura_map_sz = 0; 5001 5002 fusion = instance->ctrl_context; 5003 /* For MFI based controllers return dummy success */ 5004 if (!fusion) 5005 return; 5006 5007 instance->supportmax256vd = 5008 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; 5009 /* Below is additional check to address future FW enhancement */ 5010 if (instance->ctrl_info_buf->max_lds > 64) 5011 instance->supportmax256vd = 1; 5012 5013 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 5014 * MEGASAS_MAX_DEV_PER_CHANNEL; 5015 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 5016 * MEGASAS_MAX_DEV_PER_CHANNEL; 5017 if (instance->supportmax256vd) { 5018 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 5019 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5020 } else { 5021 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5022 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5023 } 5024 5025 dev_info(&instance->pdev->dev, 5026 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", 5027 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, 5028 instance->ctrl_info_buf->max_lds); 5029 5030 if (instance->max_raid_mapsize) { 5031 ventura_map_sz = instance->max_raid_mapsize * 5032 MR_MIN_MAP_SIZE; /* 64k */ 5033 fusion->current_map_sz = ventura_map_sz; 5034 fusion->max_map_sz = ventura_map_sz; 5035 } else { 5036 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + 5037 (sizeof(struct MR_LD_SPAN_MAP) * 5038 (instance->fw_supported_vd_count - 1)); 5039 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 5040 5041 fusion->max_map_sz = 5042 max(fusion->old_map_sz, fusion->new_map_sz); 5043 5044 if (instance->supportmax256vd) 5045 fusion->current_map_sz = fusion->new_map_sz; 5046 else 5047 fusion->current_map_sz = fusion->old_map_sz; 5048 } 5049 /* irrespective of FW raid maps, driver raid map is constant */ 5050 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 5051 } 5052 5053 /* 5054 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 5055 * dcmd.hdr.length - number of bytes to read 5056 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES 5057 * Desc: Fill in snapdump properties 5058 * Status: MFI_STAT_OK- Command successful 5059 */ 5060 void megasas_get_snapdump_properties(struct megasas_instance *instance) 5061 { 5062 int ret = 0; 5063 struct megasas_cmd *cmd; 5064 struct megasas_dcmd_frame *dcmd; 5065 struct MR_SNAPDUMP_PROPERTIES *ci; 5066 dma_addr_t ci_h = 0; 5067 5068 ci = instance->snapdump_prop; 5069 ci_h = instance->snapdump_prop_h; 5070 5071 if (!ci) 5072 return; 5073 5074 cmd = megasas_get_cmd(instance); 5075 5076 if (!cmd) { 5077 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); 5078 return; 5079 } 5080 5081 dcmd = &cmd->frame->dcmd; 5082 5083 memset(ci, 0, sizeof(*ci)); 5084 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5085 5086 dcmd->cmd = MFI_CMD_DCMD; 5087 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5088 dcmd->sge_count = 1; 5089 dcmd->flags = MFI_FRAME_DIR_READ; 5090 dcmd->timeout = 0; 5091 dcmd->pad_0 = 0; 5092 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5093 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); 5094 5095 megasas_set_dma_settings(instance, dcmd, ci_h, 5096 sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5097 5098 if (!instance->mask_interrupts) { 5099 ret = megasas_issue_blocked_cmd(instance, cmd, 5100 MFI_IO_TIMEOUT_SECS); 5101 } else { 5102 ret = megasas_issue_polled(instance, cmd); 5103 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5104 } 5105 5106 switch (ret) { 5107 case DCMD_SUCCESS: 5108 instance->snapdump_wait_time = 5109 min_t(u8, ci->trigger_min_num_sec_before_ocr, 5110 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); 5111 break; 5112 5113 case DCMD_TIMEOUT: 5114 switch (dcmd_timeout_ocr_possible(instance)) { 5115 case INITIATE_OCR: 5116 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5117 mutex_unlock(&instance->reset_mutex); 5118 megasas_reset_fusion(instance->host, 5119 MFI_IO_TIMEOUT_OCR); 5120 mutex_lock(&instance->reset_mutex); 5121 break; 5122 case KILL_ADAPTER: 5123 megaraid_sas_kill_hba(instance); 5124 break; 5125 case IGNORE_TIMEOUT: 5126 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5127 __func__, __LINE__); 5128 break; 5129 } 5130 } 5131 5132 if (ret != DCMD_TIMEOUT) 5133 megasas_return_cmd(instance, cmd); 5134 } 5135 5136 /** 5137 * megasas_get_controller_info - Returns FW's controller structure 5138 * @instance: Adapter soft state 5139 * 5140 * Issues an internal command (DCMD) to get the FW's controller structure. 5141 * This information is mainly used to find out the maximum IO transfer per 5142 * command supported by the FW. 5143 */ 5144 int 5145 megasas_get_ctrl_info(struct megasas_instance *instance) 5146 { 5147 int ret = 0; 5148 struct megasas_cmd *cmd; 5149 struct megasas_dcmd_frame *dcmd; 5150 struct megasas_ctrl_info *ci; 5151 dma_addr_t ci_h = 0; 5152 5153 ci = instance->ctrl_info_buf; 5154 ci_h = instance->ctrl_info_buf_h; 5155 5156 cmd = megasas_get_cmd(instance); 5157 5158 if (!cmd) { 5159 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 5160 return -ENOMEM; 5161 } 5162 5163 dcmd = &cmd->frame->dcmd; 5164 5165 memset(ci, 0, sizeof(*ci)); 5166 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5167 5168 dcmd->cmd = MFI_CMD_DCMD; 5169 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5170 dcmd->sge_count = 1; 5171 dcmd->flags = MFI_FRAME_DIR_READ; 5172 dcmd->timeout = 0; 5173 dcmd->pad_0 = 0; 5174 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 5175 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 5176 dcmd->mbox.b[0] = 1; 5177 5178 megasas_set_dma_settings(instance, dcmd, ci_h, 5179 sizeof(struct megasas_ctrl_info)); 5180 5181 if ((instance->adapter_type != MFI_SERIES) && 5182 !instance->mask_interrupts) { 5183 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5184 } else { 5185 ret = megasas_issue_polled(instance, cmd); 5186 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5187 } 5188 5189 switch (ret) { 5190 case DCMD_SUCCESS: 5191 /* Save required controller information in 5192 * CPU endianness format. 5193 */ 5194 le32_to_cpus((u32 *)&ci->properties.OnOffProperties); 5195 le16_to_cpus((u16 *)&ci->properties.on_off_properties2); 5196 le32_to_cpus((u32 *)&ci->adapterOperations2); 5197 le32_to_cpus((u32 *)&ci->adapterOperations3); 5198 le16_to_cpus((u16 *)&ci->adapter_operations4); 5199 le32_to_cpus((u32 *)&ci->adapter_operations5); 5200 5201 /* Update the latest Ext VD info. 5202 * From Init path, store current firmware details. 5203 * From OCR path, detect any firmware properties changes. 5204 * in case of Firmware upgrade without system reboot. 5205 */ 5206 megasas_update_ext_vd_details(instance); 5207 instance->support_seqnum_jbod_fp = 5208 ci->adapterOperations3.useSeqNumJbodFP; 5209 instance->support_morethan256jbod = 5210 ci->adapter_operations4.support_pd_map_target_id; 5211 instance->support_nvme_passthru = 5212 ci->adapter_operations4.support_nvme_passthru; 5213 instance->support_pci_lane_margining = 5214 ci->adapter_operations5.support_pci_lane_margining; 5215 instance->task_abort_tmo = ci->TaskAbortTO; 5216 instance->max_reset_tmo = ci->MaxResetTO; 5217 5218 /*Check whether controller is iMR or MR */ 5219 instance->is_imr = (ci->memory_size ? 0 : 1); 5220 5221 instance->snapdump_wait_time = 5222 (ci->properties.on_off_properties2.enable_snap_dump ? 5223 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); 5224 5225 instance->enable_fw_dev_list = 5226 ci->properties.on_off_properties2.enable_fw_dev_list; 5227 5228 dev_info(&instance->pdev->dev, 5229 "controller type\t: %s(%dMB)\n", 5230 instance->is_imr ? "iMR" : "MR", 5231 le16_to_cpu(ci->memory_size)); 5232 5233 instance->disableOnlineCtrlReset = 5234 ci->properties.OnOffProperties.disableOnlineCtrlReset; 5235 instance->secure_jbod_support = 5236 ci->adapterOperations3.supportSecurityonJBOD; 5237 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 5238 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 5239 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 5240 instance->secure_jbod_support ? "Yes" : "No"); 5241 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", 5242 instance->support_nvme_passthru ? "Yes" : "No"); 5243 dev_info(&instance->pdev->dev, 5244 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", 5245 instance->task_abort_tmo, instance->max_reset_tmo); 5246 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", 5247 instance->support_seqnum_jbod_fp ? "Yes" : "No"); 5248 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", 5249 instance->support_pci_lane_margining ? "Yes" : "No"); 5250 5251 break; 5252 5253 case DCMD_TIMEOUT: 5254 switch (dcmd_timeout_ocr_possible(instance)) { 5255 case INITIATE_OCR: 5256 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5257 mutex_unlock(&instance->reset_mutex); 5258 megasas_reset_fusion(instance->host, 5259 MFI_IO_TIMEOUT_OCR); 5260 mutex_lock(&instance->reset_mutex); 5261 break; 5262 case KILL_ADAPTER: 5263 megaraid_sas_kill_hba(instance); 5264 break; 5265 case IGNORE_TIMEOUT: 5266 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5267 __func__, __LINE__); 5268 break; 5269 } 5270 break; 5271 case DCMD_FAILED: 5272 megaraid_sas_kill_hba(instance); 5273 break; 5274 5275 } 5276 5277 if (ret != DCMD_TIMEOUT) 5278 megasas_return_cmd(instance, cmd); 5279 5280 return ret; 5281 } 5282 5283 /* 5284 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 5285 * to firmware 5286 * 5287 * @instance: Adapter soft state 5288 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 5289 MR_CRASH_BUF_TURN_OFF = 0 5290 MR_CRASH_BUF_TURN_ON = 1 5291 * @return 0 on success non-zero on failure. 5292 * Issues an internal command (DCMD) to set parameters for crash dump feature. 5293 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 5294 * that driver supports crash dump feature. This DCMD will be sent only if 5295 * crash dump feature is supported by the FW. 5296 * 5297 */ 5298 int megasas_set_crash_dump_params(struct megasas_instance *instance, 5299 u8 crash_buf_state) 5300 { 5301 int ret = 0; 5302 struct megasas_cmd *cmd; 5303 struct megasas_dcmd_frame *dcmd; 5304 5305 cmd = megasas_get_cmd(instance); 5306 5307 if (!cmd) { 5308 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 5309 return -ENOMEM; 5310 } 5311 5312 5313 dcmd = &cmd->frame->dcmd; 5314 5315 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5316 dcmd->mbox.b[0] = crash_buf_state; 5317 dcmd->cmd = MFI_CMD_DCMD; 5318 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5319 dcmd->sge_count = 1; 5320 dcmd->flags = MFI_FRAME_DIR_NONE; 5321 dcmd->timeout = 0; 5322 dcmd->pad_0 = 0; 5323 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 5324 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 5325 5326 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, 5327 CRASH_DMA_BUF_SIZE); 5328 5329 if ((instance->adapter_type != MFI_SERIES) && 5330 !instance->mask_interrupts) 5331 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5332 else 5333 ret = megasas_issue_polled(instance, cmd); 5334 5335 if (ret == DCMD_TIMEOUT) { 5336 switch (dcmd_timeout_ocr_possible(instance)) { 5337 case INITIATE_OCR: 5338 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5339 megasas_reset_fusion(instance->host, 5340 MFI_IO_TIMEOUT_OCR); 5341 break; 5342 case KILL_ADAPTER: 5343 megaraid_sas_kill_hba(instance); 5344 break; 5345 case IGNORE_TIMEOUT: 5346 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5347 __func__, __LINE__); 5348 break; 5349 } 5350 } else 5351 megasas_return_cmd(instance, cmd); 5352 5353 return ret; 5354 } 5355 5356 /** 5357 * megasas_issue_init_mfi - Initializes the FW 5358 * @instance: Adapter soft state 5359 * 5360 * Issues the INIT MFI cmd 5361 */ 5362 static int 5363 megasas_issue_init_mfi(struct megasas_instance *instance) 5364 { 5365 __le32 context; 5366 struct megasas_cmd *cmd; 5367 struct megasas_init_frame *init_frame; 5368 struct megasas_init_queue_info *initq_info; 5369 dma_addr_t init_frame_h; 5370 dma_addr_t initq_info_h; 5371 5372 /* 5373 * Prepare a init frame. Note the init frame points to queue info 5374 * structure. Each frame has SGL allocated after first 64 bytes. For 5375 * this frame - since we don't need any SGL - we use SGL's space as 5376 * queue info structure 5377 * 5378 * We will not get a NULL command below. We just created the pool. 5379 */ 5380 cmd = megasas_get_cmd(instance); 5381 5382 init_frame = (struct megasas_init_frame *)cmd->frame; 5383 initq_info = (struct megasas_init_queue_info *) 5384 ((unsigned long)init_frame + 64); 5385 5386 init_frame_h = cmd->frame_phys_addr; 5387 initq_info_h = init_frame_h + 64; 5388 5389 context = init_frame->context; 5390 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 5391 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 5392 init_frame->context = context; 5393 5394 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 5395 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 5396 5397 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 5398 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 5399 5400 init_frame->cmd = MFI_CMD_INIT; 5401 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 5402 init_frame->queue_info_new_phys_addr_lo = 5403 cpu_to_le32(lower_32_bits(initq_info_h)); 5404 init_frame->queue_info_new_phys_addr_hi = 5405 cpu_to_le32(upper_32_bits(initq_info_h)); 5406 5407 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 5408 5409 /* 5410 * disable the intr before firing the init frame to FW 5411 */ 5412 instance->instancet->disable_intr(instance); 5413 5414 /* 5415 * Issue the init frame in polled mode 5416 */ 5417 5418 if (megasas_issue_polled(instance, cmd)) { 5419 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 5420 megasas_return_cmd(instance, cmd); 5421 goto fail_fw_init; 5422 } 5423 5424 megasas_return_cmd(instance, cmd); 5425 5426 return 0; 5427 5428 fail_fw_init: 5429 return -EINVAL; 5430 } 5431 5432 static u32 5433 megasas_init_adapter_mfi(struct megasas_instance *instance) 5434 { 5435 u32 context_sz; 5436 u32 reply_q_sz; 5437 5438 /* 5439 * Get various operational parameters from status register 5440 */ 5441 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; 5442 /* 5443 * Reduce the max supported cmds by 1. This is to ensure that the 5444 * reply_q_sz (1 more than the max cmd that driver may send) 5445 * does not exceed max cmds that the FW can support 5446 */ 5447 instance->max_fw_cmds = instance->max_fw_cmds-1; 5448 instance->max_mfi_cmds = instance->max_fw_cmds; 5449 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> 5450 0x10; 5451 /* 5452 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 5453 * are reserved for IOCTL + driver's internal DCMDs. 5454 */ 5455 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 5456 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 5457 instance->max_scsi_cmds = (instance->max_fw_cmds - 5458 MEGASAS_SKINNY_INT_CMDS); 5459 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 5460 } else { 5461 instance->max_scsi_cmds = (instance->max_fw_cmds - 5462 MEGASAS_INT_CMDS); 5463 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 5464 } 5465 5466 instance->cur_can_queue = instance->max_scsi_cmds; 5467 /* 5468 * Create a pool of commands 5469 */ 5470 if (megasas_alloc_cmds(instance)) 5471 goto fail_alloc_cmds; 5472 5473 /* 5474 * Allocate memory for reply queue. Length of reply queue should 5475 * be _one_ more than the maximum commands handled by the firmware. 5476 * 5477 * Note: When FW completes commands, it places corresponding contex 5478 * values in this circular reply queue. This circular queue is a fairly 5479 * typical producer-consumer queue. FW is the producer (of completed 5480 * commands) and the driver is the consumer. 5481 */ 5482 context_sz = sizeof(u32); 5483 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 5484 5485 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, 5486 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); 5487 5488 if (!instance->reply_queue) { 5489 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 5490 goto fail_reply_queue; 5491 } 5492 5493 if (megasas_issue_init_mfi(instance)) 5494 goto fail_fw_init; 5495 5496 if (megasas_get_ctrl_info(instance)) { 5497 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 5498 "Fail from %s %d\n", instance->unique_id, 5499 __func__, __LINE__); 5500 goto fail_fw_init; 5501 } 5502 5503 instance->fw_support_ieee = 0; 5504 instance->fw_support_ieee = 5505 (instance->instancet->read_fw_status_reg(instance) & 5506 0x04000000); 5507 5508 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 5509 instance->fw_support_ieee); 5510 5511 if (instance->fw_support_ieee) 5512 instance->flag_ieee = 1; 5513 5514 return 0; 5515 5516 fail_fw_init: 5517 5518 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 5519 instance->reply_queue, instance->reply_queue_h); 5520 fail_reply_queue: 5521 megasas_free_cmds(instance); 5522 5523 fail_alloc_cmds: 5524 return 1; 5525 } 5526 5527 static 5528 void megasas_setup_irq_poll(struct megasas_instance *instance) 5529 { 5530 struct megasas_irq_context *irq_ctx; 5531 u32 count, i; 5532 5533 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5534 5535 /* Initialize IRQ poll */ 5536 for (i = 0; i < count; i++) { 5537 irq_ctx = &instance->irq_context[i]; 5538 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); 5539 irq_ctx->irq_poll_scheduled = false; 5540 irq_poll_init(&irq_ctx->irqpoll, 5541 instance->threshold_reply_count, 5542 megasas_irqpoll); 5543 } 5544 } 5545 5546 /* 5547 * megasas_setup_irqs_ioapic - register legacy interrupts. 5548 * @instance: Adapter soft state 5549 * 5550 * Do not enable interrupt, only setup ISRs. 5551 * 5552 * Return 0 on success. 5553 */ 5554 static int 5555 megasas_setup_irqs_ioapic(struct megasas_instance *instance) 5556 { 5557 struct pci_dev *pdev; 5558 5559 pdev = instance->pdev; 5560 instance->irq_context[0].instance = instance; 5561 instance->irq_context[0].MSIxIndex = 0; 5562 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u", 5563 "megasas", instance->host->host_no); 5564 if (request_irq(pci_irq_vector(pdev, 0), 5565 instance->instancet->service_isr, IRQF_SHARED, 5566 instance->irq_context->name, &instance->irq_context[0])) { 5567 dev_err(&instance->pdev->dev, 5568 "Failed to register IRQ from %s %d\n", 5569 __func__, __LINE__); 5570 return -1; 5571 } 5572 instance->perf_mode = MR_LATENCY_PERF_MODE; 5573 instance->low_latency_index_start = 0; 5574 return 0; 5575 } 5576 5577 /** 5578 * megasas_setup_irqs_msix - register MSI-x interrupts. 5579 * @instance: Adapter soft state 5580 * @is_probe: Driver probe check 5581 * 5582 * Do not enable interrupt, only setup ISRs. 5583 * 5584 * Return 0 on success. 5585 */ 5586 static int 5587 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5588 { 5589 int i, j; 5590 struct pci_dev *pdev; 5591 5592 pdev = instance->pdev; 5593 5594 /* Try MSI-x */ 5595 for (i = 0; i < instance->msix_vectors; i++) { 5596 instance->irq_context[i].instance = instance; 5597 instance->irq_context[i].MSIxIndex = i; 5598 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u", 5599 "megasas", instance->host->host_no, i); 5600 if (request_irq(pci_irq_vector(pdev, i), 5601 instance->instancet->service_isr, 0, instance->irq_context[i].name, 5602 &instance->irq_context[i])) { 5603 dev_err(&instance->pdev->dev, 5604 "Failed to register IRQ for vector %d.\n", i); 5605 for (j = 0; j < i; j++) 5606 free_irq(pci_irq_vector(pdev, j), 5607 &instance->irq_context[j]); 5608 /* Retry irq register for IO_APIC*/ 5609 instance->msix_vectors = 0; 5610 instance->msix_load_balance = false; 5611 if (is_probe) { 5612 pci_free_irq_vectors(instance->pdev); 5613 return megasas_setup_irqs_ioapic(instance); 5614 } else { 5615 return -1; 5616 } 5617 } 5618 } 5619 5620 return 0; 5621 } 5622 5623 /* 5624 * megasas_destroy_irqs- unregister interrupts. 5625 * @instance: Adapter soft state 5626 * return: void 5627 */ 5628 static void 5629 megasas_destroy_irqs(struct megasas_instance *instance) { 5630 5631 int i; 5632 int count; 5633 struct megasas_irq_context *irq_ctx; 5634 5635 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5636 if (instance->adapter_type != MFI_SERIES) { 5637 for (i = 0; i < count; i++) { 5638 irq_ctx = &instance->irq_context[i]; 5639 irq_poll_disable(&irq_ctx->irqpoll); 5640 } 5641 } 5642 5643 if (instance->msix_vectors) 5644 for (i = 0; i < instance->msix_vectors; i++) { 5645 free_irq(pci_irq_vector(instance->pdev, i), 5646 &instance->irq_context[i]); 5647 } 5648 else 5649 free_irq(pci_irq_vector(instance->pdev, 0), 5650 &instance->irq_context[0]); 5651 } 5652 5653 /** 5654 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5655 * @instance: Adapter soft state 5656 * @is_probe: Driver probe check 5657 * 5658 * Return 0 on success. 5659 */ 5660 void 5661 megasas_setup_jbod_map(struct megasas_instance *instance) 5662 { 5663 int i; 5664 struct fusion_context *fusion = instance->ctrl_context; 5665 u32 pd_seq_map_sz; 5666 5667 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 5668 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); 5669 5670 instance->use_seqnum_jbod_fp = 5671 instance->support_seqnum_jbod_fp; 5672 if (reset_devices || !fusion || 5673 !instance->support_seqnum_jbod_fp) { 5674 dev_info(&instance->pdev->dev, 5675 "JBOD sequence map is disabled %s %d\n", 5676 __func__, __LINE__); 5677 instance->use_seqnum_jbod_fp = false; 5678 return; 5679 } 5680 5681 if (fusion->pd_seq_sync[0]) 5682 goto skip_alloc; 5683 5684 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5685 fusion->pd_seq_sync[i] = dma_alloc_coherent 5686 (&instance->pdev->dev, pd_seq_map_sz, 5687 &fusion->pd_seq_phys[i], GFP_KERNEL); 5688 if (!fusion->pd_seq_sync[i]) { 5689 dev_err(&instance->pdev->dev, 5690 "Failed to allocate memory from %s %d\n", 5691 __func__, __LINE__); 5692 if (i == 1) { 5693 dma_free_coherent(&instance->pdev->dev, 5694 pd_seq_map_sz, fusion->pd_seq_sync[0], 5695 fusion->pd_seq_phys[0]); 5696 fusion->pd_seq_sync[0] = NULL; 5697 } 5698 instance->use_seqnum_jbod_fp = false; 5699 return; 5700 } 5701 } 5702 5703 skip_alloc: 5704 if (!megasas_sync_pd_seq_num(instance, false) && 5705 !megasas_sync_pd_seq_num(instance, true)) 5706 instance->use_seqnum_jbod_fp = true; 5707 else 5708 instance->use_seqnum_jbod_fp = false; 5709 } 5710 5711 static void megasas_setup_reply_map(struct megasas_instance *instance) 5712 { 5713 const struct cpumask *mask; 5714 unsigned int queue, cpu, low_latency_index_start; 5715 5716 low_latency_index_start = instance->low_latency_index_start; 5717 5718 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { 5719 mask = pci_irq_get_affinity(instance->pdev, queue); 5720 if (!mask) 5721 goto fallback; 5722 5723 for_each_cpu(cpu, mask) 5724 instance->reply_map[cpu] = queue; 5725 } 5726 return; 5727 5728 fallback: 5729 queue = low_latency_index_start; 5730 for_each_possible_cpu(cpu) { 5731 instance->reply_map[cpu] = queue; 5732 if (queue == (instance->msix_vectors - 1)) 5733 queue = low_latency_index_start; 5734 else 5735 queue++; 5736 } 5737 } 5738 5739 /** 5740 * megasas_get_device_list - Get the PD and LD device list from FW. 5741 * @instance: Adapter soft state 5742 * @return: Success or failure 5743 * 5744 * Issue DCMDs to Firmware to get the PD and LD list. 5745 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 5746 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 5747 */ 5748 static 5749 int megasas_get_device_list(struct megasas_instance *instance) 5750 { 5751 memset(instance->pd_list, 0, 5752 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); 5753 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 5754 5755 if (instance->enable_fw_dev_list) { 5756 if (megasas_host_device_list_query(instance, true)) 5757 return FAILED; 5758 } else { 5759 if (megasas_get_pd_list(instance) < 0) { 5760 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5761 return FAILED; 5762 } 5763 5764 if (megasas_ld_list_query(instance, 5765 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { 5766 dev_err(&instance->pdev->dev, "failed to get LD list\n"); 5767 return FAILED; 5768 } 5769 } 5770 5771 return SUCCESS; 5772 } 5773 5774 /** 5775 * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues 5776 * @instance: Adapter soft state 5777 * return: void 5778 */ 5779 static inline void 5780 megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance) 5781 { 5782 int i; 5783 int local_numa_node; 5784 5785 if (instance->perf_mode == MR_BALANCED_PERF_MODE) { 5786 local_numa_node = dev_to_node(&instance->pdev->dev); 5787 5788 for (i = 0; i < instance->low_latency_index_start; i++) 5789 irq_set_affinity_hint(pci_irq_vector(instance->pdev, i), 5790 cpumask_of_node(local_numa_node)); 5791 } 5792 } 5793 5794 static int 5795 __megasas_alloc_irq_vectors(struct megasas_instance *instance) 5796 { 5797 int i, irq_flags; 5798 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; 5799 struct irq_affinity *descp = &desc; 5800 5801 irq_flags = PCI_IRQ_MSIX; 5802 5803 if (instance->smp_affinity_enable) 5804 irq_flags |= PCI_IRQ_AFFINITY; 5805 else 5806 descp = NULL; 5807 5808 i = pci_alloc_irq_vectors_affinity(instance->pdev, 5809 instance->low_latency_index_start, 5810 instance->msix_vectors, irq_flags, descp); 5811 5812 return i; 5813 } 5814 5815 /** 5816 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors 5817 * @instance: Adapter soft state 5818 * return: void 5819 */ 5820 static void 5821 megasas_alloc_irq_vectors(struct megasas_instance *instance) 5822 { 5823 int i; 5824 unsigned int num_msix_req; 5825 5826 i = __megasas_alloc_irq_vectors(instance); 5827 5828 if ((instance->perf_mode == MR_BALANCED_PERF_MODE) && 5829 (i != instance->msix_vectors)) { 5830 if (instance->msix_vectors) 5831 pci_free_irq_vectors(instance->pdev); 5832 /* Disable Balanced IOPS mode and try realloc vectors */ 5833 instance->perf_mode = MR_LATENCY_PERF_MODE; 5834 instance->low_latency_index_start = 1; 5835 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 5836 5837 instance->msix_vectors = min(num_msix_req, 5838 instance->msix_vectors); 5839 5840 i = __megasas_alloc_irq_vectors(instance); 5841 5842 } 5843 5844 dev_info(&instance->pdev->dev, 5845 "requested/available msix %d/%d\n", instance->msix_vectors, i); 5846 5847 if (i > 0) 5848 instance->msix_vectors = i; 5849 else 5850 instance->msix_vectors = 0; 5851 5852 if (instance->smp_affinity_enable) 5853 megasas_set_high_iops_queue_affinity_hint(instance); 5854 } 5855 5856 /** 5857 * megasas_init_fw - Initializes the FW 5858 * @instance: Adapter soft state 5859 * 5860 * This is the main function for initializing firmware 5861 */ 5862 5863 static int megasas_init_fw(struct megasas_instance *instance) 5864 { 5865 u32 max_sectors_1; 5866 u32 max_sectors_2, tmp_sectors, msix_enable; 5867 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; 5868 resource_size_t base_addr; 5869 void *base_addr_phys; 5870 struct megasas_ctrl_info *ctrl_info = NULL; 5871 unsigned long bar_list; 5872 int i, j, loop; 5873 struct IOV_111 *iovPtr; 5874 struct fusion_context *fusion; 5875 bool intr_coalescing; 5876 unsigned int num_msix_req; 5877 u16 lnksta, speed; 5878 5879 fusion = instance->ctrl_context; 5880 5881 /* Find first memory bar */ 5882 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 5883 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 5884 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 5885 "megasas: LSI")) { 5886 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 5887 return -EBUSY; 5888 } 5889 5890 base_addr = pci_resource_start(instance->pdev, instance->bar); 5891 instance->reg_set = ioremap(base_addr, 8192); 5892 5893 if (!instance->reg_set) { 5894 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 5895 goto fail_ioremap; 5896 } 5897 5898 base_addr_phys = &base_addr; 5899 dev_printk(KERN_DEBUG, &instance->pdev->dev, 5900 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", 5901 instance->bar, base_addr_phys, instance->reg_set); 5902 5903 if (instance->adapter_type != MFI_SERIES) 5904 instance->instancet = &megasas_instance_template_fusion; 5905 else { 5906 switch (instance->pdev->device) { 5907 case PCI_DEVICE_ID_LSI_SAS1078R: 5908 case PCI_DEVICE_ID_LSI_SAS1078DE: 5909 instance->instancet = &megasas_instance_template_ppc; 5910 break; 5911 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 5912 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 5913 instance->instancet = &megasas_instance_template_gen2; 5914 break; 5915 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 5916 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 5917 instance->instancet = &megasas_instance_template_skinny; 5918 break; 5919 case PCI_DEVICE_ID_LSI_SAS1064R: 5920 case PCI_DEVICE_ID_DELL_PERC5: 5921 default: 5922 instance->instancet = &megasas_instance_template_xscale; 5923 instance->pd_list_not_supported = 1; 5924 break; 5925 } 5926 } 5927 5928 if (megasas_transition_to_ready(instance, 0)) { 5929 dev_info(&instance->pdev->dev, 5930 "Failed to transition controller to ready from %s!\n", 5931 __func__); 5932 if (instance->adapter_type != MFI_SERIES) { 5933 status_reg = instance->instancet->read_fw_status_reg( 5934 instance); 5935 if (status_reg & MFI_RESET_ADAPTER) { 5936 if (megasas_adp_reset_wait_for_ready 5937 (instance, true, 0) == FAILED) 5938 goto fail_ready_state; 5939 } else { 5940 goto fail_ready_state; 5941 } 5942 } else { 5943 atomic_set(&instance->fw_reset_no_pci_access, 1); 5944 instance->instancet->adp_reset 5945 (instance, instance->reg_set); 5946 atomic_set(&instance->fw_reset_no_pci_access, 0); 5947 5948 /*waiting for about 30 second before retry*/ 5949 ssleep(30); 5950 5951 if (megasas_transition_to_ready(instance, 0)) 5952 goto fail_ready_state; 5953 } 5954 5955 dev_info(&instance->pdev->dev, 5956 "FW restarted successfully from %s!\n", 5957 __func__); 5958 } 5959 5960 megasas_init_ctrl_params(instance); 5961 5962 if (megasas_set_dma_mask(instance)) 5963 goto fail_ready_state; 5964 5965 if (megasas_alloc_ctrl_mem(instance)) 5966 goto fail_alloc_dma_buf; 5967 5968 if (megasas_alloc_ctrl_dma_buffers(instance)) 5969 goto fail_alloc_dma_buf; 5970 5971 fusion = instance->ctrl_context; 5972 5973 if (instance->adapter_type >= VENTURA_SERIES) { 5974 scratch_pad_2 = 5975 megasas_readl(instance, 5976 &instance->reg_set->outbound_scratch_pad_2); 5977 instance->max_raid_mapsize = ((scratch_pad_2 >> 5978 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 5979 MR_MAX_RAID_MAP_SIZE_MASK); 5980 } 5981 5982 instance->enable_sdev_max_qd = enable_sdev_max_qd; 5983 5984 switch (instance->adapter_type) { 5985 case VENTURA_SERIES: 5986 fusion->pcie_bw_limitation = true; 5987 break; 5988 case AERO_SERIES: 5989 fusion->r56_div_offload = true; 5990 break; 5991 default: 5992 break; 5993 } 5994 5995 /* Check if MSI-X is supported while in ready state */ 5996 msix_enable = (instance->instancet->read_fw_status_reg(instance) & 5997 0x4000000) >> 0x1a; 5998 if (msix_enable && !msix_disable) { 5999 6000 scratch_pad_1 = megasas_readl 6001 (instance, &instance->reg_set->outbound_scratch_pad_1); 6002 /* Check max MSI-X vectors */ 6003 if (fusion) { 6004 if (instance->adapter_type == THUNDERBOLT_SERIES) { 6005 /* Thunderbolt Series*/ 6006 instance->msix_vectors = (scratch_pad_1 6007 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 6008 } else { 6009 instance->msix_vectors = ((scratch_pad_1 6010 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 6011 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 6012 6013 /* 6014 * For Invader series, > 8 MSI-x vectors 6015 * supported by FW/HW implies combined 6016 * reply queue mode is enabled. 6017 * For Ventura series, > 16 MSI-x vectors 6018 * supported by FW/HW implies combined 6019 * reply queue mode is enabled. 6020 */ 6021 switch (instance->adapter_type) { 6022 case INVADER_SERIES: 6023 if (instance->msix_vectors > 8) 6024 instance->msix_combined = true; 6025 break; 6026 case AERO_SERIES: 6027 case VENTURA_SERIES: 6028 if (instance->msix_vectors > 16) 6029 instance->msix_combined = true; 6030 break; 6031 } 6032 6033 if (rdpq_enable) 6034 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? 6035 1 : 0; 6036 6037 if (instance->adapter_type >= INVADER_SERIES && 6038 !instance->msix_combined) { 6039 instance->msix_load_balance = true; 6040 instance->smp_affinity_enable = false; 6041 } 6042 6043 /* Save 1-15 reply post index address to local memory 6044 * Index 0 is already saved from reg offset 6045 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 6046 */ 6047 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 6048 instance->reply_post_host_index_addr[loop] = 6049 (u32 __iomem *) 6050 ((u8 __iomem *)instance->reg_set + 6051 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 6052 + (loop * 0x10)); 6053 } 6054 } 6055 6056 dev_info(&instance->pdev->dev, 6057 "firmware supports msix\t: (%d)", 6058 instance->msix_vectors); 6059 if (msix_vectors) 6060 instance->msix_vectors = min(msix_vectors, 6061 instance->msix_vectors); 6062 } else /* MFI adapters */ 6063 instance->msix_vectors = 1; 6064 6065 6066 /* 6067 * For Aero (if some conditions are met), driver will configure a 6068 * few additional reply queues with interrupt coalescing enabled. 6069 * These queues with interrupt coalescing enabled are called 6070 * High IOPS queues and rest of reply queues (based on number of 6071 * logical CPUs) are termed as Low latency queues. 6072 * 6073 * Total Number of reply queues = High IOPS queues + low latency queues 6074 * 6075 * For rest of fusion adapters, 1 additional reply queue will be 6076 * reserved for management commands, rest of reply queues 6077 * (based on number of logical CPUs) will be used for IOs and 6078 * referenced as IO queues. 6079 * Total Number of reply queues = 1 + IO queues 6080 * 6081 * MFI adapters supports single MSI-x so single reply queue 6082 * will be used for IO and management commands. 6083 */ 6084 6085 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? 6086 true : false; 6087 if (intr_coalescing && 6088 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) && 6089 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) 6090 instance->perf_mode = MR_BALANCED_PERF_MODE; 6091 else 6092 instance->perf_mode = MR_LATENCY_PERF_MODE; 6093 6094 6095 if (instance->adapter_type == AERO_SERIES) { 6096 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); 6097 speed = lnksta & PCI_EXP_LNKSTA_CLS; 6098 6099 /* 6100 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate 6101 * in latency perf mode and enable R1 PCI bandwidth algorithm 6102 */ 6103 if (speed < 0x4) { 6104 instance->perf_mode = MR_LATENCY_PERF_MODE; 6105 fusion->pcie_bw_limitation = true; 6106 } 6107 6108 /* 6109 * Performance mode settings provided through module parameter-perf_mode will 6110 * take affect only for: 6111 * 1. Aero family of adapters. 6112 * 2. When user sets module parameter- perf_mode in range of 0-2. 6113 */ 6114 if ((perf_mode >= MR_BALANCED_PERF_MODE) && 6115 (perf_mode <= MR_LATENCY_PERF_MODE)) 6116 instance->perf_mode = perf_mode; 6117 /* 6118 * If intr coalescing is not supported by controller FW, then IOPS 6119 * and Balanced modes are not feasible. 6120 */ 6121 if (!intr_coalescing) 6122 instance->perf_mode = MR_LATENCY_PERF_MODE; 6123 6124 } 6125 6126 if (instance->perf_mode == MR_BALANCED_PERF_MODE) 6127 instance->low_latency_index_start = 6128 MR_HIGH_IOPS_QUEUE_COUNT; 6129 else 6130 instance->low_latency_index_start = 1; 6131 6132 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 6133 6134 instance->msix_vectors = min(num_msix_req, 6135 instance->msix_vectors); 6136 6137 megasas_alloc_irq_vectors(instance); 6138 if (!instance->msix_vectors) 6139 instance->msix_load_balance = false; 6140 } 6141 /* 6142 * MSI-X host index 0 is common for all adapter. 6143 * It is used for all MPT based Adapters. 6144 */ 6145 if (instance->msix_combined) { 6146 instance->reply_post_host_index_addr[0] = 6147 (u32 *)((u8 *)instance->reg_set + 6148 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 6149 } else { 6150 instance->reply_post_host_index_addr[0] = 6151 (u32 *)((u8 *)instance->reg_set + 6152 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 6153 } 6154 6155 if (!instance->msix_vectors) { 6156 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); 6157 if (i < 0) 6158 goto fail_init_adapter; 6159 } 6160 6161 megasas_setup_reply_map(instance); 6162 6163 dev_info(&instance->pdev->dev, 6164 "current msix/online cpus\t: (%d/%d)\n", 6165 instance->msix_vectors, (unsigned int)num_online_cpus()); 6166 dev_info(&instance->pdev->dev, 6167 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 6168 6169 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6170 (unsigned long)instance); 6171 6172 /* 6173 * Below are default value for legacy Firmware. 6174 * non-fusion based controllers 6175 */ 6176 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 6177 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 6178 /* Get operational params, sge flags, send init cmd to controller */ 6179 if (instance->instancet->init_adapter(instance)) 6180 goto fail_init_adapter; 6181 6182 if (instance->adapter_type >= VENTURA_SERIES) { 6183 scratch_pad_3 = 6184 megasas_readl(instance, 6185 &instance->reg_set->outbound_scratch_pad_3); 6186 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= 6187 MR_DEFAULT_NVME_PAGE_SHIFT) 6188 instance->nvme_page_size = 6189 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); 6190 6191 dev_info(&instance->pdev->dev, 6192 "NVME page size\t: (%d)\n", instance->nvme_page_size); 6193 } 6194 6195 if (instance->msix_vectors ? 6196 megasas_setup_irqs_msix(instance, 1) : 6197 megasas_setup_irqs_ioapic(instance)) 6198 goto fail_init_adapter; 6199 6200 if (instance->adapter_type != MFI_SERIES) 6201 megasas_setup_irq_poll(instance); 6202 6203 instance->instancet->enable_intr(instance); 6204 6205 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 6206 6207 megasas_setup_jbod_map(instance); 6208 6209 if (megasas_get_device_list(instance) != SUCCESS) { 6210 dev_err(&instance->pdev->dev, 6211 "%s: megasas_get_device_list failed\n", 6212 __func__); 6213 goto fail_get_ld_pd_list; 6214 } 6215 6216 /* stream detection initialization */ 6217 if (instance->adapter_type >= VENTURA_SERIES) { 6218 fusion->stream_detect_by_ld = 6219 kcalloc(MAX_LOGICAL_DRIVES_EXT, 6220 sizeof(struct LD_STREAM_DETECT *), 6221 GFP_KERNEL); 6222 if (!fusion->stream_detect_by_ld) { 6223 dev_err(&instance->pdev->dev, 6224 "unable to allocate stream detection for pool of LDs\n"); 6225 goto fail_get_ld_pd_list; 6226 } 6227 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 6228 fusion->stream_detect_by_ld[i] = 6229 kzalloc(sizeof(struct LD_STREAM_DETECT), 6230 GFP_KERNEL); 6231 if (!fusion->stream_detect_by_ld[i]) { 6232 dev_err(&instance->pdev->dev, 6233 "unable to allocate stream detect by LD\n "); 6234 for (j = 0; j < i; ++j) 6235 kfree(fusion->stream_detect_by_ld[j]); 6236 kfree(fusion->stream_detect_by_ld); 6237 fusion->stream_detect_by_ld = NULL; 6238 goto fail_get_ld_pd_list; 6239 } 6240 fusion->stream_detect_by_ld[i]->mru_bit_map 6241 = MR_STREAM_BITMAP; 6242 } 6243 } 6244 6245 /* 6246 * Compute the max allowed sectors per IO: The controller info has two 6247 * limits on max sectors. Driver should use the minimum of these two. 6248 * 6249 * 1 << stripe_sz_ops.min = max sectors per strip 6250 * 6251 * Note that older firmwares ( < FW ver 30) didn't report information 6252 * to calculate max_sectors_1. So the number ended up as zero always. 6253 */ 6254 tmp_sectors = 0; 6255 ctrl_info = instance->ctrl_info_buf; 6256 6257 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 6258 le16_to_cpu(ctrl_info->max_strips_per_io); 6259 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 6260 6261 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 6262 6263 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 6264 instance->passive = ctrl_info->cluster.passive; 6265 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 6266 instance->UnevenSpanSupport = 6267 ctrl_info->adapterOperations2.supportUnevenSpans; 6268 if (instance->UnevenSpanSupport) { 6269 struct fusion_context *fusion = instance->ctrl_context; 6270 if (MR_ValidateMapInfo(instance, instance->map_id)) 6271 fusion->fast_path_io = 1; 6272 else 6273 fusion->fast_path_io = 0; 6274 6275 } 6276 if (ctrl_info->host_interface.SRIOV) { 6277 instance->requestorId = ctrl_info->iov.requestorId; 6278 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 6279 if (!ctrl_info->adapterOperations2.activePassive) 6280 instance->PlasmaFW111 = 1; 6281 6282 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 6283 instance->PlasmaFW111 ? "1.11" : "new"); 6284 6285 if (instance->PlasmaFW111) { 6286 iovPtr = (struct IOV_111 *) 6287 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 6288 instance->requestorId = iovPtr->requestorId; 6289 } 6290 } 6291 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 6292 instance->requestorId); 6293 } 6294 6295 instance->crash_dump_fw_support = 6296 ctrl_info->adapterOperations3.supportCrashDump; 6297 instance->crash_dump_drv_support = 6298 (instance->crash_dump_fw_support && 6299 instance->crash_dump_buf); 6300 if (instance->crash_dump_drv_support) 6301 megasas_set_crash_dump_params(instance, 6302 MR_CRASH_BUF_TURN_OFF); 6303 6304 else { 6305 if (instance->crash_dump_buf) 6306 dma_free_coherent(&instance->pdev->dev, 6307 CRASH_DMA_BUF_SIZE, 6308 instance->crash_dump_buf, 6309 instance->crash_dump_h); 6310 instance->crash_dump_buf = NULL; 6311 } 6312 6313 if (instance->snapdump_wait_time) { 6314 megasas_get_snapdump_properties(instance); 6315 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", 6316 instance->snapdump_wait_time); 6317 } 6318 6319 dev_info(&instance->pdev->dev, 6320 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 6321 le16_to_cpu(ctrl_info->pci.vendor_id), 6322 le16_to_cpu(ctrl_info->pci.device_id), 6323 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 6324 le16_to_cpu(ctrl_info->pci.sub_device_id)); 6325 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 6326 instance->UnevenSpanSupport ? "yes" : "no"); 6327 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 6328 instance->crash_dump_drv_support ? "yes" : "no"); 6329 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", 6330 instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); 6331 6332 instance->max_sectors_per_req = instance->max_num_sge * 6333 SGE_BUFFER_SIZE / 512; 6334 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 6335 instance->max_sectors_per_req = tmp_sectors; 6336 6337 /* Check for valid throttlequeuedepth module parameter */ 6338 if (throttlequeuedepth && 6339 throttlequeuedepth <= instance->max_scsi_cmds) 6340 instance->throttlequeuedepth = throttlequeuedepth; 6341 else 6342 instance->throttlequeuedepth = 6343 MEGASAS_THROTTLE_QUEUE_DEPTH; 6344 6345 if ((resetwaittime < 1) || 6346 (resetwaittime > MEGASAS_RESET_WAIT_TIME)) 6347 resetwaittime = MEGASAS_RESET_WAIT_TIME; 6348 6349 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 6350 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 6351 6352 /* Launch SR-IOV heartbeat timer */ 6353 if (instance->requestorId) { 6354 if (!megasas_sriov_start_heartbeat(instance, 1)) { 6355 megasas_start_timer(instance); 6356 } else { 6357 instance->skip_heartbeat_timer_del = 1; 6358 goto fail_get_ld_pd_list; 6359 } 6360 } 6361 6362 /* 6363 * Create and start watchdog thread which will monitor 6364 * controller state every 1 sec and trigger OCR when 6365 * it enters fault state 6366 */ 6367 if (instance->adapter_type != MFI_SERIES) 6368 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 6369 goto fail_start_watchdog; 6370 6371 return 0; 6372 6373 fail_start_watchdog: 6374 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6375 del_timer_sync(&instance->sriov_heartbeat_timer); 6376 fail_get_ld_pd_list: 6377 instance->instancet->disable_intr(instance); 6378 megasas_destroy_irqs(instance); 6379 fail_init_adapter: 6380 if (instance->msix_vectors) 6381 pci_free_irq_vectors(instance->pdev); 6382 instance->msix_vectors = 0; 6383 fail_alloc_dma_buf: 6384 megasas_free_ctrl_dma_buffers(instance); 6385 megasas_free_ctrl_mem(instance); 6386 fail_ready_state: 6387 iounmap(instance->reg_set); 6388 6389 fail_ioremap: 6390 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6391 6392 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6393 __func__, __LINE__); 6394 return -EINVAL; 6395 } 6396 6397 /** 6398 * megasas_release_mfi - Reverses the FW initialization 6399 * @instance: Adapter soft state 6400 */ 6401 static void megasas_release_mfi(struct megasas_instance *instance) 6402 { 6403 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 6404 6405 if (instance->reply_queue) 6406 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 6407 instance->reply_queue, instance->reply_queue_h); 6408 6409 megasas_free_cmds(instance); 6410 6411 iounmap(instance->reg_set); 6412 6413 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6414 } 6415 6416 /** 6417 * megasas_get_seq_num - Gets latest event sequence numbers 6418 * @instance: Adapter soft state 6419 * @eli: FW event log sequence numbers information 6420 * 6421 * FW maintains a log of all events in a non-volatile area. Upper layers would 6422 * usually find out the latest sequence number of the events, the seq number at 6423 * the boot etc. They would "read" all the events below the latest seq number 6424 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 6425 * number), they would subsribe to AEN (asynchronous event notification) and 6426 * wait for the events to happen. 6427 */ 6428 static int 6429 megasas_get_seq_num(struct megasas_instance *instance, 6430 struct megasas_evt_log_info *eli) 6431 { 6432 struct megasas_cmd *cmd; 6433 struct megasas_dcmd_frame *dcmd; 6434 struct megasas_evt_log_info *el_info; 6435 dma_addr_t el_info_h = 0; 6436 int ret; 6437 6438 cmd = megasas_get_cmd(instance); 6439 6440 if (!cmd) { 6441 return -ENOMEM; 6442 } 6443 6444 dcmd = &cmd->frame->dcmd; 6445 el_info = dma_alloc_coherent(&instance->pdev->dev, 6446 sizeof(struct megasas_evt_log_info), 6447 &el_info_h, GFP_KERNEL); 6448 if (!el_info) { 6449 megasas_return_cmd(instance, cmd); 6450 return -ENOMEM; 6451 } 6452 6453 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6454 6455 dcmd->cmd = MFI_CMD_DCMD; 6456 dcmd->cmd_status = 0x0; 6457 dcmd->sge_count = 1; 6458 dcmd->flags = MFI_FRAME_DIR_READ; 6459 dcmd->timeout = 0; 6460 dcmd->pad_0 = 0; 6461 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 6462 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 6463 6464 megasas_set_dma_settings(instance, dcmd, el_info_h, 6465 sizeof(struct megasas_evt_log_info)); 6466 6467 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 6468 if (ret != DCMD_SUCCESS) { 6469 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6470 __func__, __LINE__); 6471 goto dcmd_failed; 6472 } 6473 6474 /* 6475 * Copy the data back into callers buffer 6476 */ 6477 eli->newest_seq_num = el_info->newest_seq_num; 6478 eli->oldest_seq_num = el_info->oldest_seq_num; 6479 eli->clear_seq_num = el_info->clear_seq_num; 6480 eli->shutdown_seq_num = el_info->shutdown_seq_num; 6481 eli->boot_seq_num = el_info->boot_seq_num; 6482 6483 dcmd_failed: 6484 dma_free_coherent(&instance->pdev->dev, 6485 sizeof(struct megasas_evt_log_info), 6486 el_info, el_info_h); 6487 6488 megasas_return_cmd(instance, cmd); 6489 6490 return ret; 6491 } 6492 6493 /** 6494 * megasas_register_aen - Registers for asynchronous event notification 6495 * @instance: Adapter soft state 6496 * @seq_num: The starting sequence number 6497 * @class_locale: Class of the event 6498 * 6499 * This function subscribes for AEN for events beyond the @seq_num. It requests 6500 * to be notified if and only if the event is of type @class_locale 6501 */ 6502 static int 6503 megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 6504 u32 class_locale_word) 6505 { 6506 int ret_val; 6507 struct megasas_cmd *cmd; 6508 struct megasas_dcmd_frame *dcmd; 6509 union megasas_evt_class_locale curr_aen; 6510 union megasas_evt_class_locale prev_aen; 6511 6512 /* 6513 * If there an AEN pending already (aen_cmd), check if the 6514 * class_locale of that pending AEN is inclusive of the new 6515 * AEN request we currently have. If it is, then we don't have 6516 * to do anything. In other words, whichever events the current 6517 * AEN request is subscribing to, have already been subscribed 6518 * to. 6519 * 6520 * If the old_cmd is _not_ inclusive, then we have to abort 6521 * that command, form a class_locale that is superset of both 6522 * old and current and re-issue to the FW 6523 */ 6524 6525 curr_aen.word = class_locale_word; 6526 6527 if (instance->aen_cmd) { 6528 6529 prev_aen.word = 6530 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 6531 6532 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || 6533 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { 6534 dev_info(&instance->pdev->dev, 6535 "%s %d out of range class %d send by application\n", 6536 __func__, __LINE__, curr_aen.members.class); 6537 return 0; 6538 } 6539 6540 /* 6541 * A class whose enum value is smaller is inclusive of all 6542 * higher values. If a PROGRESS (= -1) was previously 6543 * registered, then a new registration requests for higher 6544 * classes need not be sent to FW. They are automatically 6545 * included. 6546 * 6547 * Locale numbers don't have such hierarchy. They are bitmap 6548 * values 6549 */ 6550 if ((prev_aen.members.class <= curr_aen.members.class) && 6551 !((prev_aen.members.locale & curr_aen.members.locale) ^ 6552 curr_aen.members.locale)) { 6553 /* 6554 * Previously issued event registration includes 6555 * current request. Nothing to do. 6556 */ 6557 return 0; 6558 } else { 6559 curr_aen.members.locale |= prev_aen.members.locale; 6560 6561 if (prev_aen.members.class < curr_aen.members.class) 6562 curr_aen.members.class = prev_aen.members.class; 6563 6564 instance->aen_cmd->abort_aen = 1; 6565 ret_val = megasas_issue_blocked_abort_cmd(instance, 6566 instance-> 6567 aen_cmd, 30); 6568 6569 if (ret_val) { 6570 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 6571 "previous AEN command\n"); 6572 return ret_val; 6573 } 6574 } 6575 } 6576 6577 cmd = megasas_get_cmd(instance); 6578 6579 if (!cmd) 6580 return -ENOMEM; 6581 6582 dcmd = &cmd->frame->dcmd; 6583 6584 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 6585 6586 /* 6587 * Prepare DCMD for aen registration 6588 */ 6589 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6590 6591 dcmd->cmd = MFI_CMD_DCMD; 6592 dcmd->cmd_status = 0x0; 6593 dcmd->sge_count = 1; 6594 dcmd->flags = MFI_FRAME_DIR_READ; 6595 dcmd->timeout = 0; 6596 dcmd->pad_0 = 0; 6597 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 6598 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 6599 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 6600 instance->last_seq_num = seq_num; 6601 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 6602 6603 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, 6604 sizeof(struct megasas_evt_detail)); 6605 6606 if (instance->aen_cmd != NULL) { 6607 megasas_return_cmd(instance, cmd); 6608 return 0; 6609 } 6610 6611 /* 6612 * Store reference to the cmd used to register for AEN. When an 6613 * application wants us to register for AEN, we have to abort this 6614 * cmd and re-register with a new EVENT LOCALE supplied by that app 6615 */ 6616 instance->aen_cmd = cmd; 6617 6618 /* 6619 * Issue the aen registration frame 6620 */ 6621 instance->instancet->issue_dcmd(instance, cmd); 6622 6623 return 0; 6624 } 6625 6626 /* megasas_get_target_prop - Send DCMD with below details to firmware. 6627 * 6628 * This DCMD will fetch few properties of LD/system PD defined 6629 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 6630 * 6631 * DCMD send by drivers whenever new target is added to the OS. 6632 * 6633 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 6634 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 6635 * 0 = system PD, 1 = LD. 6636 * dcmd.mbox.s[1] - TargetID for LD/system PD. 6637 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 6638 * 6639 * @instance: Adapter soft state 6640 * @sdev: OS provided scsi device 6641 * 6642 * Returns 0 on success non-zero on failure. 6643 */ 6644 int 6645 megasas_get_target_prop(struct megasas_instance *instance, 6646 struct scsi_device *sdev) 6647 { 6648 int ret; 6649 struct megasas_cmd *cmd; 6650 struct megasas_dcmd_frame *dcmd; 6651 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 6652 sdev->id; 6653 6654 cmd = megasas_get_cmd(instance); 6655 6656 if (!cmd) { 6657 dev_err(&instance->pdev->dev, 6658 "Failed to get cmd %s\n", __func__); 6659 return -ENOMEM; 6660 } 6661 6662 dcmd = &cmd->frame->dcmd; 6663 6664 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 6665 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6666 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 6667 6668 dcmd->mbox.s[1] = cpu_to_le16(targetId); 6669 dcmd->cmd = MFI_CMD_DCMD; 6670 dcmd->cmd_status = 0xFF; 6671 dcmd->sge_count = 1; 6672 dcmd->flags = MFI_FRAME_DIR_READ; 6673 dcmd->timeout = 0; 6674 dcmd->pad_0 = 0; 6675 dcmd->data_xfer_len = 6676 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 6677 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 6678 6679 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, 6680 sizeof(struct MR_TARGET_PROPERTIES)); 6681 6682 if ((instance->adapter_type != MFI_SERIES) && 6683 !instance->mask_interrupts) 6684 ret = megasas_issue_blocked_cmd(instance, 6685 cmd, MFI_IO_TIMEOUT_SECS); 6686 else 6687 ret = megasas_issue_polled(instance, cmd); 6688 6689 switch (ret) { 6690 case DCMD_TIMEOUT: 6691 switch (dcmd_timeout_ocr_possible(instance)) { 6692 case INITIATE_OCR: 6693 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 6694 mutex_unlock(&instance->reset_mutex); 6695 megasas_reset_fusion(instance->host, 6696 MFI_IO_TIMEOUT_OCR); 6697 mutex_lock(&instance->reset_mutex); 6698 break; 6699 case KILL_ADAPTER: 6700 megaraid_sas_kill_hba(instance); 6701 break; 6702 case IGNORE_TIMEOUT: 6703 dev_info(&instance->pdev->dev, 6704 "Ignore DCMD timeout: %s %d\n", 6705 __func__, __LINE__); 6706 break; 6707 } 6708 break; 6709 6710 default: 6711 megasas_return_cmd(instance, cmd); 6712 } 6713 if (ret != DCMD_SUCCESS) 6714 dev_err(&instance->pdev->dev, 6715 "return from %s %d return value %d\n", 6716 __func__, __LINE__, ret); 6717 6718 return ret; 6719 } 6720 6721 /** 6722 * megasas_start_aen - Subscribes to AEN during driver load time 6723 * @instance: Adapter soft state 6724 */ 6725 static int megasas_start_aen(struct megasas_instance *instance) 6726 { 6727 struct megasas_evt_log_info eli; 6728 union megasas_evt_class_locale class_locale; 6729 6730 /* 6731 * Get the latest sequence number from FW 6732 */ 6733 memset(&eli, 0, sizeof(eli)); 6734 6735 if (megasas_get_seq_num(instance, &eli)) 6736 return -1; 6737 6738 /* 6739 * Register AEN with FW for latest sequence number plus 1 6740 */ 6741 class_locale.members.reserved = 0; 6742 class_locale.members.locale = MR_EVT_LOCALE_ALL; 6743 class_locale.members.class = MR_EVT_CLASS_DEBUG; 6744 6745 return megasas_register_aen(instance, 6746 le32_to_cpu(eli.newest_seq_num) + 1, 6747 class_locale.word); 6748 } 6749 6750 /** 6751 * megasas_io_attach - Attaches this driver to SCSI mid-layer 6752 * @instance: Adapter soft state 6753 */ 6754 static int megasas_io_attach(struct megasas_instance *instance) 6755 { 6756 struct Scsi_Host *host = instance->host; 6757 6758 /* 6759 * Export parameters required by SCSI mid-layer 6760 */ 6761 host->unique_id = instance->unique_id; 6762 host->can_queue = instance->max_scsi_cmds; 6763 host->this_id = instance->init_id; 6764 host->sg_tablesize = instance->max_num_sge; 6765 6766 if (instance->fw_support_ieee) 6767 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 6768 6769 /* 6770 * Check if the module parameter value for max_sectors can be used 6771 */ 6772 if (max_sectors && max_sectors < instance->max_sectors_per_req) 6773 instance->max_sectors_per_req = max_sectors; 6774 else { 6775 if (max_sectors) { 6776 if (((instance->pdev->device == 6777 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 6778 (instance->pdev->device == 6779 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 6780 (max_sectors <= MEGASAS_MAX_SECTORS)) { 6781 instance->max_sectors_per_req = max_sectors; 6782 } else { 6783 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 6784 "and <= %d (or < 1MB for GEN2 controller)\n", 6785 instance->max_sectors_per_req); 6786 } 6787 } 6788 } 6789 6790 host->max_sectors = instance->max_sectors_per_req; 6791 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 6792 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 6793 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 6794 host->max_lun = MEGASAS_MAX_LUN; 6795 host->max_cmd_len = 16; 6796 6797 /* 6798 * Notify the mid-layer about the new controller 6799 */ 6800 if (scsi_add_host(host, &instance->pdev->dev)) { 6801 dev_err(&instance->pdev->dev, 6802 "Failed to add host from %s %d\n", 6803 __func__, __LINE__); 6804 return -ENODEV; 6805 } 6806 6807 return 0; 6808 } 6809 6810 /** 6811 * megasas_set_dma_mask - Set DMA mask for supported controllers 6812 * 6813 * @instance: Adapter soft state 6814 * Description: 6815 * 6816 * For Ventura, driver/FW will operate in 63bit DMA addresses. 6817 * 6818 * For invader- 6819 * By default, driver/FW will operate in 32bit DMA addresses 6820 * for consistent DMA mapping but if 32 bit consistent 6821 * DMA mask fails, driver will try with 63 bit consistent 6822 * mask provided FW is true 63bit DMA capable 6823 * 6824 * For older controllers(Thunderbolt and MFI based adapters)- 6825 * driver/FW will operate in 32 bit consistent DMA addresses. 6826 */ 6827 static int 6828 megasas_set_dma_mask(struct megasas_instance *instance) 6829 { 6830 u64 consistent_mask; 6831 struct pci_dev *pdev; 6832 u32 scratch_pad_1; 6833 6834 pdev = instance->pdev; 6835 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? 6836 DMA_BIT_MASK(63) : DMA_BIT_MASK(32); 6837 6838 if (IS_DMA64) { 6839 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && 6840 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6841 goto fail_set_dma_mask; 6842 6843 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && 6844 (dma_set_coherent_mask(&pdev->dev, consistent_mask) && 6845 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { 6846 /* 6847 * If 32 bit DMA mask fails, then try for 64 bit mask 6848 * for FW capable of handling 64 bit DMA. 6849 */ 6850 scratch_pad_1 = megasas_readl 6851 (instance, &instance->reg_set->outbound_scratch_pad_1); 6852 6853 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) 6854 goto fail_set_dma_mask; 6855 else if (dma_set_mask_and_coherent(&pdev->dev, 6856 DMA_BIT_MASK(63))) 6857 goto fail_set_dma_mask; 6858 } 6859 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6860 goto fail_set_dma_mask; 6861 6862 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) 6863 instance->consistent_mask_64bit = false; 6864 else 6865 instance->consistent_mask_64bit = true; 6866 6867 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", 6868 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), 6869 (instance->consistent_mask_64bit ? "63" : "32")); 6870 6871 return 0; 6872 6873 fail_set_dma_mask: 6874 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 6875 return -1; 6876 6877 } 6878 6879 /* 6880 * megasas_set_adapter_type - Set adapter type. 6881 * Supported controllers can be divided in 6882 * different categories- 6883 * enum MR_ADAPTER_TYPE { 6884 * MFI_SERIES = 1, 6885 * THUNDERBOLT_SERIES = 2, 6886 * INVADER_SERIES = 3, 6887 * VENTURA_SERIES = 4, 6888 * AERO_SERIES = 5, 6889 * }; 6890 * @instance: Adapter soft state 6891 * return: void 6892 */ 6893 static inline void megasas_set_adapter_type(struct megasas_instance *instance) 6894 { 6895 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && 6896 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { 6897 instance->adapter_type = MFI_SERIES; 6898 } else { 6899 switch (instance->pdev->device) { 6900 case PCI_DEVICE_ID_LSI_AERO_10E1: 6901 case PCI_DEVICE_ID_LSI_AERO_10E2: 6902 case PCI_DEVICE_ID_LSI_AERO_10E5: 6903 case PCI_DEVICE_ID_LSI_AERO_10E6: 6904 instance->adapter_type = AERO_SERIES; 6905 break; 6906 case PCI_DEVICE_ID_LSI_VENTURA: 6907 case PCI_DEVICE_ID_LSI_CRUSADER: 6908 case PCI_DEVICE_ID_LSI_HARPOON: 6909 case PCI_DEVICE_ID_LSI_TOMCAT: 6910 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 6911 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 6912 instance->adapter_type = VENTURA_SERIES; 6913 break; 6914 case PCI_DEVICE_ID_LSI_FUSION: 6915 case PCI_DEVICE_ID_LSI_PLASMA: 6916 instance->adapter_type = THUNDERBOLT_SERIES; 6917 break; 6918 case PCI_DEVICE_ID_LSI_INVADER: 6919 case PCI_DEVICE_ID_LSI_INTRUDER: 6920 case PCI_DEVICE_ID_LSI_INTRUDER_24: 6921 case PCI_DEVICE_ID_LSI_CUTLASS_52: 6922 case PCI_DEVICE_ID_LSI_CUTLASS_53: 6923 case PCI_DEVICE_ID_LSI_FURY: 6924 instance->adapter_type = INVADER_SERIES; 6925 break; 6926 default: /* For all other supported controllers */ 6927 instance->adapter_type = MFI_SERIES; 6928 break; 6929 } 6930 } 6931 } 6932 6933 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) 6934 { 6935 instance->producer = dma_alloc_coherent(&instance->pdev->dev, 6936 sizeof(u32), &instance->producer_h, GFP_KERNEL); 6937 instance->consumer = dma_alloc_coherent(&instance->pdev->dev, 6938 sizeof(u32), &instance->consumer_h, GFP_KERNEL); 6939 6940 if (!instance->producer || !instance->consumer) { 6941 dev_err(&instance->pdev->dev, 6942 "Failed to allocate memory for producer, consumer\n"); 6943 return -1; 6944 } 6945 6946 *instance->producer = 0; 6947 *instance->consumer = 0; 6948 return 0; 6949 } 6950 6951 /** 6952 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data 6953 * structures which are not common across MFI 6954 * adapters and fusion adapters. 6955 * For MFI based adapters, allocate producer and 6956 * consumer buffers. For fusion adapters, allocate 6957 * memory for fusion context. 6958 * @instance: Adapter soft state 6959 * return: 0 for SUCCESS 6960 */ 6961 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) 6962 { 6963 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), 6964 GFP_KERNEL); 6965 if (!instance->reply_map) 6966 return -ENOMEM; 6967 6968 switch (instance->adapter_type) { 6969 case MFI_SERIES: 6970 if (megasas_alloc_mfi_ctrl_mem(instance)) 6971 goto fail; 6972 break; 6973 case AERO_SERIES: 6974 case VENTURA_SERIES: 6975 case THUNDERBOLT_SERIES: 6976 case INVADER_SERIES: 6977 if (megasas_alloc_fusion_context(instance)) 6978 goto fail; 6979 break; 6980 } 6981 6982 return 0; 6983 fail: 6984 kfree(instance->reply_map); 6985 instance->reply_map = NULL; 6986 return -ENOMEM; 6987 } 6988 6989 /* 6990 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and 6991 * producer, consumer buffers for MFI adapters 6992 * 6993 * @instance - Adapter soft instance 6994 * 6995 */ 6996 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) 6997 { 6998 kfree(instance->reply_map); 6999 if (instance->adapter_type == MFI_SERIES) { 7000 if (instance->producer) 7001 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7002 instance->producer, 7003 instance->producer_h); 7004 if (instance->consumer) 7005 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7006 instance->consumer, 7007 instance->consumer_h); 7008 } else { 7009 megasas_free_fusion_context(instance); 7010 } 7011 } 7012 7013 /** 7014 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during 7015 * driver load time 7016 * 7017 * @instance- Adapter soft instance 7018 * @return- O for SUCCESS 7019 */ 7020 static inline 7021 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) 7022 { 7023 struct pci_dev *pdev = instance->pdev; 7024 struct fusion_context *fusion = instance->ctrl_context; 7025 7026 instance->evt_detail = dma_alloc_coherent(&pdev->dev, 7027 sizeof(struct megasas_evt_detail), 7028 &instance->evt_detail_h, GFP_KERNEL); 7029 7030 if (!instance->evt_detail) { 7031 dev_err(&instance->pdev->dev, 7032 "Failed to allocate event detail buffer\n"); 7033 return -ENOMEM; 7034 } 7035 7036 if (fusion) { 7037 fusion->ioc_init_request = 7038 dma_alloc_coherent(&pdev->dev, 7039 sizeof(struct MPI2_IOC_INIT_REQUEST), 7040 &fusion->ioc_init_request_phys, 7041 GFP_KERNEL); 7042 7043 if (!fusion->ioc_init_request) { 7044 dev_err(&pdev->dev, 7045 "Failed to allocate PD list buffer\n"); 7046 return -ENOMEM; 7047 } 7048 7049 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, 7050 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7051 &instance->snapdump_prop_h, GFP_KERNEL); 7052 7053 if (!instance->snapdump_prop) 7054 dev_err(&pdev->dev, 7055 "Failed to allocate snapdump properties buffer\n"); 7056 7057 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, 7058 HOST_DEVICE_LIST_SZ, 7059 &instance->host_device_list_buf_h, 7060 GFP_KERNEL); 7061 7062 if (!instance->host_device_list_buf) { 7063 dev_err(&pdev->dev, 7064 "Failed to allocate targetid list buffer\n"); 7065 return -ENOMEM; 7066 } 7067 7068 } 7069 7070 instance->pd_list_buf = 7071 dma_alloc_coherent(&pdev->dev, 7072 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7073 &instance->pd_list_buf_h, GFP_KERNEL); 7074 7075 if (!instance->pd_list_buf) { 7076 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); 7077 return -ENOMEM; 7078 } 7079 7080 instance->ctrl_info_buf = 7081 dma_alloc_coherent(&pdev->dev, 7082 sizeof(struct megasas_ctrl_info), 7083 &instance->ctrl_info_buf_h, GFP_KERNEL); 7084 7085 if (!instance->ctrl_info_buf) { 7086 dev_err(&pdev->dev, 7087 "Failed to allocate controller info buffer\n"); 7088 return -ENOMEM; 7089 } 7090 7091 instance->ld_list_buf = 7092 dma_alloc_coherent(&pdev->dev, 7093 sizeof(struct MR_LD_LIST), 7094 &instance->ld_list_buf_h, GFP_KERNEL); 7095 7096 if (!instance->ld_list_buf) { 7097 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); 7098 return -ENOMEM; 7099 } 7100 7101 instance->ld_targetid_list_buf = 7102 dma_alloc_coherent(&pdev->dev, 7103 sizeof(struct MR_LD_TARGETID_LIST), 7104 &instance->ld_targetid_list_buf_h, GFP_KERNEL); 7105 7106 if (!instance->ld_targetid_list_buf) { 7107 dev_err(&pdev->dev, 7108 "Failed to allocate LD targetid list buffer\n"); 7109 return -ENOMEM; 7110 } 7111 7112 if (!reset_devices) { 7113 instance->system_info_buf = 7114 dma_alloc_coherent(&pdev->dev, 7115 sizeof(struct MR_DRV_SYSTEM_INFO), 7116 &instance->system_info_h, GFP_KERNEL); 7117 instance->pd_info = 7118 dma_alloc_coherent(&pdev->dev, 7119 sizeof(struct MR_PD_INFO), 7120 &instance->pd_info_h, GFP_KERNEL); 7121 instance->tgt_prop = 7122 dma_alloc_coherent(&pdev->dev, 7123 sizeof(struct MR_TARGET_PROPERTIES), 7124 &instance->tgt_prop_h, GFP_KERNEL); 7125 instance->crash_dump_buf = 7126 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7127 &instance->crash_dump_h, GFP_KERNEL); 7128 7129 if (!instance->system_info_buf) 7130 dev_err(&instance->pdev->dev, 7131 "Failed to allocate system info buffer\n"); 7132 7133 if (!instance->pd_info) 7134 dev_err(&instance->pdev->dev, 7135 "Failed to allocate pd_info buffer\n"); 7136 7137 if (!instance->tgt_prop) 7138 dev_err(&instance->pdev->dev, 7139 "Failed to allocate tgt_prop buffer\n"); 7140 7141 if (!instance->crash_dump_buf) 7142 dev_err(&instance->pdev->dev, 7143 "Failed to allocate crash dump buffer\n"); 7144 } 7145 7146 return 0; 7147 } 7148 7149 /* 7150 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated 7151 * during driver load time 7152 * 7153 * @instance- Adapter soft instance 7154 * 7155 */ 7156 static inline 7157 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) 7158 { 7159 struct pci_dev *pdev = instance->pdev; 7160 struct fusion_context *fusion = instance->ctrl_context; 7161 7162 if (instance->evt_detail) 7163 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), 7164 instance->evt_detail, 7165 instance->evt_detail_h); 7166 7167 if (fusion && fusion->ioc_init_request) 7168 dma_free_coherent(&pdev->dev, 7169 sizeof(struct MPI2_IOC_INIT_REQUEST), 7170 fusion->ioc_init_request, 7171 fusion->ioc_init_request_phys); 7172 7173 if (instance->pd_list_buf) 7174 dma_free_coherent(&pdev->dev, 7175 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7176 instance->pd_list_buf, 7177 instance->pd_list_buf_h); 7178 7179 if (instance->ld_list_buf) 7180 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), 7181 instance->ld_list_buf, 7182 instance->ld_list_buf_h); 7183 7184 if (instance->ld_targetid_list_buf) 7185 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), 7186 instance->ld_targetid_list_buf, 7187 instance->ld_targetid_list_buf_h); 7188 7189 if (instance->ctrl_info_buf) 7190 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), 7191 instance->ctrl_info_buf, 7192 instance->ctrl_info_buf_h); 7193 7194 if (instance->system_info_buf) 7195 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), 7196 instance->system_info_buf, 7197 instance->system_info_h); 7198 7199 if (instance->pd_info) 7200 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), 7201 instance->pd_info, instance->pd_info_h); 7202 7203 if (instance->tgt_prop) 7204 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), 7205 instance->tgt_prop, instance->tgt_prop_h); 7206 7207 if (instance->crash_dump_buf) 7208 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7209 instance->crash_dump_buf, 7210 instance->crash_dump_h); 7211 7212 if (instance->snapdump_prop) 7213 dma_free_coherent(&pdev->dev, 7214 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7215 instance->snapdump_prop, 7216 instance->snapdump_prop_h); 7217 7218 if (instance->host_device_list_buf) 7219 dma_free_coherent(&pdev->dev, 7220 HOST_DEVICE_LIST_SZ, 7221 instance->host_device_list_buf, 7222 instance->host_device_list_buf_h); 7223 7224 } 7225 7226 /* 7227 * megasas_init_ctrl_params - Initialize controller's instance 7228 * parameters before FW init 7229 * @instance - Adapter soft instance 7230 * @return - void 7231 */ 7232 static inline void megasas_init_ctrl_params(struct megasas_instance *instance) 7233 { 7234 instance->fw_crash_state = UNAVAILABLE; 7235 7236 megasas_poll_wait_aen = 0; 7237 instance->issuepend_done = 1; 7238 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 7239 7240 /* 7241 * Initialize locks and queues 7242 */ 7243 INIT_LIST_HEAD(&instance->cmd_pool); 7244 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 7245 7246 atomic_set(&instance->fw_outstanding, 0); 7247 atomic64_set(&instance->total_io_count, 0); 7248 7249 init_waitqueue_head(&instance->int_cmd_wait_q); 7250 init_waitqueue_head(&instance->abort_cmd_wait_q); 7251 7252 spin_lock_init(&instance->crashdump_lock); 7253 spin_lock_init(&instance->mfi_pool_lock); 7254 spin_lock_init(&instance->hba_lock); 7255 spin_lock_init(&instance->stream_lock); 7256 spin_lock_init(&instance->completion_lock); 7257 7258 mutex_init(&instance->reset_mutex); 7259 7260 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 7261 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 7262 instance->flag_ieee = 1; 7263 7264 megasas_dbg_lvl = 0; 7265 instance->flag = 0; 7266 instance->unload = 1; 7267 instance->last_time = 0; 7268 instance->disableOnlineCtrlReset = 1; 7269 instance->UnevenSpanSupport = 0; 7270 instance->smp_affinity_enable = smp_affinity_enable ? true : false; 7271 instance->msix_load_balance = false; 7272 7273 if (instance->adapter_type != MFI_SERIES) 7274 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 7275 else 7276 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 7277 } 7278 7279 /** 7280 * megasas_probe_one - PCI hotplug entry point 7281 * @pdev: PCI device structure 7282 * @id: PCI ids of supported hotplugged adapter 7283 */ 7284 static int megasas_probe_one(struct pci_dev *pdev, 7285 const struct pci_device_id *id) 7286 { 7287 int rval, pos; 7288 struct Scsi_Host *host; 7289 struct megasas_instance *instance; 7290 u16 control = 0; 7291 7292 switch (pdev->device) { 7293 case PCI_DEVICE_ID_LSI_AERO_10E0: 7294 case PCI_DEVICE_ID_LSI_AERO_10E3: 7295 case PCI_DEVICE_ID_LSI_AERO_10E4: 7296 case PCI_DEVICE_ID_LSI_AERO_10E7: 7297 dev_err(&pdev->dev, "Adapter is in non secure mode\n"); 7298 return 1; 7299 case PCI_DEVICE_ID_LSI_AERO_10E1: 7300 case PCI_DEVICE_ID_LSI_AERO_10E5: 7301 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); 7302 break; 7303 } 7304 7305 /* Reset MSI-X in the kdump kernel */ 7306 if (reset_devices) { 7307 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 7308 if (pos) { 7309 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 7310 &control); 7311 if (control & PCI_MSIX_FLAGS_ENABLE) { 7312 dev_info(&pdev->dev, "resetting MSI-X\n"); 7313 pci_write_config_word(pdev, 7314 pos + PCI_MSIX_FLAGS, 7315 control & 7316 ~PCI_MSIX_FLAGS_ENABLE); 7317 } 7318 } 7319 } 7320 7321 /* 7322 * PCI prepping: enable device set bus mastering and dma mask 7323 */ 7324 rval = pci_enable_device_mem(pdev); 7325 7326 if (rval) { 7327 return rval; 7328 } 7329 7330 pci_set_master(pdev); 7331 7332 host = scsi_host_alloc(&megasas_template, 7333 sizeof(struct megasas_instance)); 7334 7335 if (!host) { 7336 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 7337 goto fail_alloc_instance; 7338 } 7339 7340 instance = (struct megasas_instance *)host->hostdata; 7341 memset(instance, 0, sizeof(*instance)); 7342 atomic_set(&instance->fw_reset_no_pci_access, 0); 7343 7344 /* 7345 * Initialize PCI related and misc parameters 7346 */ 7347 instance->pdev = pdev; 7348 instance->host = host; 7349 instance->unique_id = pdev->bus->number << 8 | pdev->devfn; 7350 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 7351 7352 megasas_set_adapter_type(instance); 7353 7354 /* 7355 * Initialize MFI Firmware 7356 */ 7357 if (megasas_init_fw(instance)) 7358 goto fail_init_mfi; 7359 7360 if (instance->requestorId) { 7361 if (instance->PlasmaFW111) { 7362 instance->vf_affiliation_111 = 7363 dma_alloc_coherent(&pdev->dev, 7364 sizeof(struct MR_LD_VF_AFFILIATION_111), 7365 &instance->vf_affiliation_111_h, 7366 GFP_KERNEL); 7367 if (!instance->vf_affiliation_111) 7368 dev_warn(&pdev->dev, "Can't allocate " 7369 "memory for VF affiliation buffer\n"); 7370 } else { 7371 instance->vf_affiliation = 7372 dma_alloc_coherent(&pdev->dev, 7373 (MAX_LOGICAL_DRIVES + 1) * 7374 sizeof(struct MR_LD_VF_AFFILIATION), 7375 &instance->vf_affiliation_h, 7376 GFP_KERNEL); 7377 if (!instance->vf_affiliation) 7378 dev_warn(&pdev->dev, "Can't allocate " 7379 "memory for VF affiliation buffer\n"); 7380 } 7381 } 7382 7383 /* 7384 * Store instance in PCI softstate 7385 */ 7386 pci_set_drvdata(pdev, instance); 7387 7388 /* 7389 * Add this controller to megasas_mgmt_info structure so that it 7390 * can be exported to management applications 7391 */ 7392 megasas_mgmt_info.count++; 7393 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 7394 megasas_mgmt_info.max_index++; 7395 7396 /* 7397 * Register with SCSI mid-layer 7398 */ 7399 if (megasas_io_attach(instance)) 7400 goto fail_io_attach; 7401 7402 instance->unload = 0; 7403 /* 7404 * Trigger SCSI to scan our drives 7405 */ 7406 if (!instance->enable_fw_dev_list || 7407 (instance->host_device_list_buf->count > 0)) 7408 scsi_scan_host(host); 7409 7410 /* 7411 * Initiate AEN (Asynchronous Event Notification) 7412 */ 7413 if (megasas_start_aen(instance)) { 7414 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 7415 goto fail_start_aen; 7416 } 7417 7418 megasas_setup_debugfs(instance); 7419 7420 /* Get current SR-IOV LD/VF affiliation */ 7421 if (instance->requestorId) 7422 megasas_get_ld_vf_affiliation(instance, 1); 7423 7424 return 0; 7425 7426 fail_start_aen: 7427 fail_io_attach: 7428 megasas_mgmt_info.count--; 7429 megasas_mgmt_info.max_index--; 7430 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 7431 7432 instance->instancet->disable_intr(instance); 7433 megasas_destroy_irqs(instance); 7434 7435 if (instance->adapter_type != MFI_SERIES) 7436 megasas_release_fusion(instance); 7437 else 7438 megasas_release_mfi(instance); 7439 if (instance->msix_vectors) 7440 pci_free_irq_vectors(instance->pdev); 7441 fail_init_mfi: 7442 scsi_host_put(host); 7443 fail_alloc_instance: 7444 pci_disable_device(pdev); 7445 7446 return -ENODEV; 7447 } 7448 7449 /** 7450 * megasas_flush_cache - Requests FW to flush all its caches 7451 * @instance: Adapter soft state 7452 */ 7453 static void megasas_flush_cache(struct megasas_instance *instance) 7454 { 7455 struct megasas_cmd *cmd; 7456 struct megasas_dcmd_frame *dcmd; 7457 7458 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7459 return; 7460 7461 cmd = megasas_get_cmd(instance); 7462 7463 if (!cmd) 7464 return; 7465 7466 dcmd = &cmd->frame->dcmd; 7467 7468 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7469 7470 dcmd->cmd = MFI_CMD_DCMD; 7471 dcmd->cmd_status = 0x0; 7472 dcmd->sge_count = 0; 7473 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7474 dcmd->timeout = 0; 7475 dcmd->pad_0 = 0; 7476 dcmd->data_xfer_len = 0; 7477 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 7478 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 7479 7480 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7481 != DCMD_SUCCESS) { 7482 dev_err(&instance->pdev->dev, 7483 "return from %s %d\n", __func__, __LINE__); 7484 return; 7485 } 7486 7487 megasas_return_cmd(instance, cmd); 7488 } 7489 7490 /** 7491 * megasas_shutdown_controller - Instructs FW to shutdown the controller 7492 * @instance: Adapter soft state 7493 * @opcode: Shutdown/Hibernate 7494 */ 7495 static void megasas_shutdown_controller(struct megasas_instance *instance, 7496 u32 opcode) 7497 { 7498 struct megasas_cmd *cmd; 7499 struct megasas_dcmd_frame *dcmd; 7500 7501 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7502 return; 7503 7504 cmd = megasas_get_cmd(instance); 7505 7506 if (!cmd) 7507 return; 7508 7509 if (instance->aen_cmd) 7510 megasas_issue_blocked_abort_cmd(instance, 7511 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 7512 if (instance->map_update_cmd) 7513 megasas_issue_blocked_abort_cmd(instance, 7514 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 7515 if (instance->jbod_seq_cmd) 7516 megasas_issue_blocked_abort_cmd(instance, 7517 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 7518 7519 dcmd = &cmd->frame->dcmd; 7520 7521 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7522 7523 dcmd->cmd = MFI_CMD_DCMD; 7524 dcmd->cmd_status = 0x0; 7525 dcmd->sge_count = 0; 7526 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7527 dcmd->timeout = 0; 7528 dcmd->pad_0 = 0; 7529 dcmd->data_xfer_len = 0; 7530 dcmd->opcode = cpu_to_le32(opcode); 7531 7532 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7533 != DCMD_SUCCESS) { 7534 dev_err(&instance->pdev->dev, 7535 "return from %s %d\n", __func__, __LINE__); 7536 return; 7537 } 7538 7539 megasas_return_cmd(instance, cmd); 7540 } 7541 7542 #ifdef CONFIG_PM 7543 /** 7544 * megasas_suspend - driver suspend entry point 7545 * @pdev: PCI device structure 7546 * @state: PCI power state to suspend routine 7547 */ 7548 static int 7549 megasas_suspend(struct pci_dev *pdev, pm_message_t state) 7550 { 7551 struct megasas_instance *instance; 7552 7553 instance = pci_get_drvdata(pdev); 7554 7555 if (!instance) 7556 return 0; 7557 7558 instance->unload = 1; 7559 7560 dev_info(&pdev->dev, "%s is called\n", __func__); 7561 7562 /* Shutdown SR-IOV heartbeat timer */ 7563 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7564 del_timer_sync(&instance->sriov_heartbeat_timer); 7565 7566 /* Stop the FW fault detection watchdog */ 7567 if (instance->adapter_type != MFI_SERIES) 7568 megasas_fusion_stop_watchdog(instance); 7569 7570 megasas_flush_cache(instance); 7571 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 7572 7573 /* cancel the delayed work if this work still in queue */ 7574 if (instance->ev != NULL) { 7575 struct megasas_aen_event *ev = instance->ev; 7576 cancel_delayed_work_sync(&ev->hotplug_work); 7577 instance->ev = NULL; 7578 } 7579 7580 tasklet_kill(&instance->isr_tasklet); 7581 7582 pci_set_drvdata(instance->pdev, instance); 7583 instance->instancet->disable_intr(instance); 7584 7585 megasas_destroy_irqs(instance); 7586 7587 if (instance->msix_vectors) 7588 pci_free_irq_vectors(instance->pdev); 7589 7590 pci_save_state(pdev); 7591 pci_disable_device(pdev); 7592 7593 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 7594 7595 return 0; 7596 } 7597 7598 /** 7599 * megasas_resume- driver resume entry point 7600 * @pdev: PCI device structure 7601 */ 7602 static int 7603 megasas_resume(struct pci_dev *pdev) 7604 { 7605 int rval; 7606 struct Scsi_Host *host; 7607 struct megasas_instance *instance; 7608 u32 status_reg; 7609 7610 instance = pci_get_drvdata(pdev); 7611 7612 if (!instance) 7613 return 0; 7614 7615 host = instance->host; 7616 pci_set_power_state(pdev, PCI_D0); 7617 pci_enable_wake(pdev, PCI_D0, 0); 7618 pci_restore_state(pdev); 7619 7620 dev_info(&pdev->dev, "%s is called\n", __func__); 7621 /* 7622 * PCI prepping: enable device set bus mastering and dma mask 7623 */ 7624 rval = pci_enable_device_mem(pdev); 7625 7626 if (rval) { 7627 dev_err(&pdev->dev, "Enable device failed\n"); 7628 return rval; 7629 } 7630 7631 pci_set_master(pdev); 7632 7633 /* 7634 * We expect the FW state to be READY 7635 */ 7636 7637 if (megasas_transition_to_ready(instance, 0)) { 7638 dev_info(&instance->pdev->dev, 7639 "Failed to transition controller to ready from %s!\n", 7640 __func__); 7641 if (instance->adapter_type != MFI_SERIES) { 7642 status_reg = 7643 instance->instancet->read_fw_status_reg(instance); 7644 if (!(status_reg & MFI_RESET_ADAPTER) || 7645 ((megasas_adp_reset_wait_for_ready 7646 (instance, true, 0)) == FAILED)) 7647 goto fail_ready_state; 7648 } else { 7649 atomic_set(&instance->fw_reset_no_pci_access, 1); 7650 instance->instancet->adp_reset 7651 (instance, instance->reg_set); 7652 atomic_set(&instance->fw_reset_no_pci_access, 0); 7653 7654 /* waiting for about 30 seconds before retry */ 7655 ssleep(30); 7656 7657 if (megasas_transition_to_ready(instance, 0)) 7658 goto fail_ready_state; 7659 } 7660 7661 dev_info(&instance->pdev->dev, 7662 "FW restarted successfully from %s!\n", 7663 __func__); 7664 } 7665 if (megasas_set_dma_mask(instance)) 7666 goto fail_set_dma_mask; 7667 7668 /* 7669 * Initialize MFI Firmware 7670 */ 7671 7672 atomic_set(&instance->fw_outstanding, 0); 7673 atomic_set(&instance->ldio_outstanding, 0); 7674 7675 /* Now re-enable MSI-X */ 7676 if (instance->msix_vectors) 7677 megasas_alloc_irq_vectors(instance); 7678 7679 if (!instance->msix_vectors) { 7680 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, 7681 PCI_IRQ_LEGACY); 7682 if (rval < 0) 7683 goto fail_reenable_msix; 7684 } 7685 7686 megasas_setup_reply_map(instance); 7687 7688 if (instance->adapter_type != MFI_SERIES) { 7689 megasas_reset_reply_desc(instance); 7690 if (megasas_ioc_init_fusion(instance)) { 7691 megasas_free_cmds(instance); 7692 megasas_free_cmds_fusion(instance); 7693 goto fail_init_mfi; 7694 } 7695 if (!megasas_get_map_info(instance)) 7696 megasas_sync_map_info(instance); 7697 } else { 7698 *instance->producer = 0; 7699 *instance->consumer = 0; 7700 if (megasas_issue_init_mfi(instance)) 7701 goto fail_init_mfi; 7702 } 7703 7704 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) 7705 goto fail_init_mfi; 7706 7707 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 7708 (unsigned long)instance); 7709 7710 if (instance->msix_vectors ? 7711 megasas_setup_irqs_msix(instance, 0) : 7712 megasas_setup_irqs_ioapic(instance)) 7713 goto fail_init_mfi; 7714 7715 if (instance->adapter_type != MFI_SERIES) 7716 megasas_setup_irq_poll(instance); 7717 7718 /* Re-launch SR-IOV heartbeat timer */ 7719 if (instance->requestorId) { 7720 if (!megasas_sriov_start_heartbeat(instance, 0)) 7721 megasas_start_timer(instance); 7722 else { 7723 instance->skip_heartbeat_timer_del = 1; 7724 goto fail_init_mfi; 7725 } 7726 } 7727 7728 instance->instancet->enable_intr(instance); 7729 megasas_setup_jbod_map(instance); 7730 instance->unload = 0; 7731 7732 /* 7733 * Initiate AEN (Asynchronous Event Notification) 7734 */ 7735 if (megasas_start_aen(instance)) 7736 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 7737 7738 /* Re-launch FW fault watchdog */ 7739 if (instance->adapter_type != MFI_SERIES) 7740 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 7741 goto fail_start_watchdog; 7742 7743 return 0; 7744 7745 fail_start_watchdog: 7746 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7747 del_timer_sync(&instance->sriov_heartbeat_timer); 7748 fail_init_mfi: 7749 megasas_free_ctrl_dma_buffers(instance); 7750 megasas_free_ctrl_mem(instance); 7751 scsi_host_put(host); 7752 7753 fail_reenable_msix: 7754 fail_set_dma_mask: 7755 fail_ready_state: 7756 7757 pci_disable_device(pdev); 7758 7759 return -ENODEV; 7760 } 7761 #else 7762 #define megasas_suspend NULL 7763 #define megasas_resume NULL 7764 #endif 7765 7766 static inline int 7767 megasas_wait_for_adapter_operational(struct megasas_instance *instance) 7768 { 7769 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 7770 int i; 7771 u8 adp_state; 7772 7773 for (i = 0; i < wait_time; i++) { 7774 adp_state = atomic_read(&instance->adprecovery); 7775 if ((adp_state == MEGASAS_HBA_OPERATIONAL) || 7776 (adp_state == MEGASAS_HW_CRITICAL_ERROR)) 7777 break; 7778 7779 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 7780 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 7781 7782 msleep(1000); 7783 } 7784 7785 if (adp_state != MEGASAS_HBA_OPERATIONAL) { 7786 dev_info(&instance->pdev->dev, 7787 "%s HBA failed to become operational, adp_state %d\n", 7788 __func__, adp_state); 7789 return 1; 7790 } 7791 7792 return 0; 7793 } 7794 7795 /** 7796 * megasas_detach_one - PCI hot"un"plug entry point 7797 * @pdev: PCI device structure 7798 */ 7799 static void megasas_detach_one(struct pci_dev *pdev) 7800 { 7801 int i; 7802 struct Scsi_Host *host; 7803 struct megasas_instance *instance; 7804 struct fusion_context *fusion; 7805 u32 pd_seq_map_sz; 7806 7807 instance = pci_get_drvdata(pdev); 7808 7809 if (!instance) 7810 return; 7811 7812 host = instance->host; 7813 fusion = instance->ctrl_context; 7814 7815 /* Shutdown SR-IOV heartbeat timer */ 7816 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7817 del_timer_sync(&instance->sriov_heartbeat_timer); 7818 7819 /* Stop the FW fault detection watchdog */ 7820 if (instance->adapter_type != MFI_SERIES) 7821 megasas_fusion_stop_watchdog(instance); 7822 7823 if (instance->fw_crash_state != UNAVAILABLE) 7824 megasas_free_host_crash_buffer(instance); 7825 scsi_remove_host(instance->host); 7826 instance->unload = 1; 7827 7828 if (megasas_wait_for_adapter_operational(instance)) 7829 goto skip_firing_dcmds; 7830 7831 megasas_flush_cache(instance); 7832 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7833 7834 skip_firing_dcmds: 7835 /* cancel the delayed work if this work still in queue*/ 7836 if (instance->ev != NULL) { 7837 struct megasas_aen_event *ev = instance->ev; 7838 cancel_delayed_work_sync(&ev->hotplug_work); 7839 instance->ev = NULL; 7840 } 7841 7842 /* cancel all wait events */ 7843 wake_up_all(&instance->int_cmd_wait_q); 7844 7845 tasklet_kill(&instance->isr_tasklet); 7846 7847 /* 7848 * Take the instance off the instance array. Note that we will not 7849 * decrement the max_index. We let this array be sparse array 7850 */ 7851 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 7852 if (megasas_mgmt_info.instance[i] == instance) { 7853 megasas_mgmt_info.count--; 7854 megasas_mgmt_info.instance[i] = NULL; 7855 7856 break; 7857 } 7858 } 7859 7860 instance->instancet->disable_intr(instance); 7861 7862 megasas_destroy_irqs(instance); 7863 7864 if (instance->msix_vectors) 7865 pci_free_irq_vectors(instance->pdev); 7866 7867 if (instance->adapter_type >= VENTURA_SERIES) { 7868 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 7869 kfree(fusion->stream_detect_by_ld[i]); 7870 kfree(fusion->stream_detect_by_ld); 7871 fusion->stream_detect_by_ld = NULL; 7872 } 7873 7874 7875 if (instance->adapter_type != MFI_SERIES) { 7876 megasas_release_fusion(instance); 7877 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 7878 (sizeof(struct MR_PD_CFG_SEQ) * 7879 (MAX_PHYSICAL_DEVICES - 1)); 7880 for (i = 0; i < 2 ; i++) { 7881 if (fusion->ld_map[i]) 7882 dma_free_coherent(&instance->pdev->dev, 7883 fusion->max_map_sz, 7884 fusion->ld_map[i], 7885 fusion->ld_map_phys[i]); 7886 if (fusion->ld_drv_map[i]) { 7887 if (is_vmalloc_addr(fusion->ld_drv_map[i])) 7888 vfree(fusion->ld_drv_map[i]); 7889 else 7890 free_pages((ulong)fusion->ld_drv_map[i], 7891 fusion->drv_map_pages); 7892 } 7893 7894 if (fusion->pd_seq_sync[i]) 7895 dma_free_coherent(&instance->pdev->dev, 7896 pd_seq_map_sz, 7897 fusion->pd_seq_sync[i], 7898 fusion->pd_seq_phys[i]); 7899 } 7900 } else { 7901 megasas_release_mfi(instance); 7902 } 7903 7904 if (instance->vf_affiliation) 7905 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * 7906 sizeof(struct MR_LD_VF_AFFILIATION), 7907 instance->vf_affiliation, 7908 instance->vf_affiliation_h); 7909 7910 if (instance->vf_affiliation_111) 7911 dma_free_coherent(&pdev->dev, 7912 sizeof(struct MR_LD_VF_AFFILIATION_111), 7913 instance->vf_affiliation_111, 7914 instance->vf_affiliation_111_h); 7915 7916 if (instance->hb_host_mem) 7917 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), 7918 instance->hb_host_mem, 7919 instance->hb_host_mem_h); 7920 7921 megasas_free_ctrl_dma_buffers(instance); 7922 7923 megasas_free_ctrl_mem(instance); 7924 7925 megasas_destroy_debugfs(instance); 7926 7927 scsi_host_put(host); 7928 7929 pci_disable_device(pdev); 7930 } 7931 7932 /** 7933 * megasas_shutdown - Shutdown entry point 7934 * @device: Generic device structure 7935 */ 7936 static void megasas_shutdown(struct pci_dev *pdev) 7937 { 7938 struct megasas_instance *instance = pci_get_drvdata(pdev); 7939 7940 if (!instance) 7941 return; 7942 7943 instance->unload = 1; 7944 7945 if (megasas_wait_for_adapter_operational(instance)) 7946 goto skip_firing_dcmds; 7947 7948 megasas_flush_cache(instance); 7949 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7950 7951 skip_firing_dcmds: 7952 instance->instancet->disable_intr(instance); 7953 megasas_destroy_irqs(instance); 7954 7955 if (instance->msix_vectors) 7956 pci_free_irq_vectors(instance->pdev); 7957 } 7958 7959 /** 7960 * megasas_mgmt_open - char node "open" entry point 7961 */ 7962 static int megasas_mgmt_open(struct inode *inode, struct file *filep) 7963 { 7964 /* 7965 * Allow only those users with admin rights 7966 */ 7967 if (!capable(CAP_SYS_ADMIN)) 7968 return -EACCES; 7969 7970 return 0; 7971 } 7972 7973 /** 7974 * megasas_mgmt_fasync - Async notifier registration from applications 7975 * 7976 * This function adds the calling process to a driver global queue. When an 7977 * event occurs, SIGIO will be sent to all processes in this queue. 7978 */ 7979 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 7980 { 7981 int rc; 7982 7983 mutex_lock(&megasas_async_queue_mutex); 7984 7985 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 7986 7987 mutex_unlock(&megasas_async_queue_mutex); 7988 7989 if (rc >= 0) { 7990 /* For sanity check when we get ioctl */ 7991 filep->private_data = filep; 7992 return 0; 7993 } 7994 7995 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 7996 7997 return rc; 7998 } 7999 8000 /** 8001 * megasas_mgmt_poll - char node "poll" entry point 8002 * */ 8003 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) 8004 { 8005 __poll_t mask; 8006 unsigned long flags; 8007 8008 poll_wait(file, &megasas_poll_wait, wait); 8009 spin_lock_irqsave(&poll_aen_lock, flags); 8010 if (megasas_poll_wait_aen) 8011 mask = (EPOLLIN | EPOLLRDNORM); 8012 else 8013 mask = 0; 8014 megasas_poll_wait_aen = 0; 8015 spin_unlock_irqrestore(&poll_aen_lock, flags); 8016 return mask; 8017 } 8018 8019 /* 8020 * megasas_set_crash_dump_params_ioctl: 8021 * Send CRASH_DUMP_MODE DCMD to all controllers 8022 * @cmd: MFI command frame 8023 */ 8024 8025 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 8026 { 8027 struct megasas_instance *local_instance; 8028 int i, error = 0; 8029 int crash_support; 8030 8031 crash_support = cmd->frame->dcmd.mbox.w[0]; 8032 8033 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8034 local_instance = megasas_mgmt_info.instance[i]; 8035 if (local_instance && local_instance->crash_dump_drv_support) { 8036 if ((atomic_read(&local_instance->adprecovery) == 8037 MEGASAS_HBA_OPERATIONAL) && 8038 !megasas_set_crash_dump_params(local_instance, 8039 crash_support)) { 8040 local_instance->crash_dump_app_support = 8041 crash_support; 8042 dev_info(&local_instance->pdev->dev, 8043 "Application firmware crash " 8044 "dump mode set success\n"); 8045 error = 0; 8046 } else { 8047 dev_info(&local_instance->pdev->dev, 8048 "Application firmware crash " 8049 "dump mode set failed\n"); 8050 error = -1; 8051 } 8052 } 8053 } 8054 return error; 8055 } 8056 8057 /** 8058 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 8059 * @instance: Adapter soft state 8060 * @argp: User's ioctl packet 8061 */ 8062 static int 8063 megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 8064 struct megasas_iocpacket __user * user_ioc, 8065 struct megasas_iocpacket *ioc) 8066 { 8067 struct megasas_sge64 *kern_sge64 = NULL; 8068 struct megasas_sge32 *kern_sge32 = NULL; 8069 struct megasas_cmd *cmd; 8070 void *kbuff_arr[MAX_IOCTL_SGE]; 8071 dma_addr_t buf_handle = 0; 8072 int error = 0, i; 8073 void *sense = NULL; 8074 dma_addr_t sense_handle; 8075 unsigned long *sense_ptr; 8076 u32 opcode = 0; 8077 int ret = DCMD_SUCCESS; 8078 8079 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 8080 8081 if (ioc->sge_count > MAX_IOCTL_SGE) { 8082 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 8083 ioc->sge_count, MAX_IOCTL_SGE); 8084 return -EINVAL; 8085 } 8086 8087 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || 8088 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && 8089 !instance->support_nvme_passthru) || 8090 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && 8091 !instance->support_pci_lane_margining)) { 8092 dev_err(&instance->pdev->dev, 8093 "Received invalid ioctl command 0x%x\n", 8094 ioc->frame.hdr.cmd); 8095 return -ENOTSUPP; 8096 } 8097 8098 cmd = megasas_get_cmd(instance); 8099 if (!cmd) { 8100 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 8101 return -ENOMEM; 8102 } 8103 8104 /* 8105 * User's IOCTL packet has 2 frames (maximum). Copy those two 8106 * frames into our cmd's frames. cmd->frame's context will get 8107 * overwritten when we copy from user's frames. So set that value 8108 * alone separately 8109 */ 8110 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 8111 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 8112 cmd->frame->hdr.pad_0 = 0; 8113 8114 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); 8115 8116 if (instance->consistent_mask_64bit) 8117 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | 8118 MFI_FRAME_SENSE64)); 8119 else 8120 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | 8121 MFI_FRAME_SENSE64)); 8122 8123 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) 8124 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 8125 8126 if (opcode == MR_DCMD_CTRL_SHUTDOWN) { 8127 mutex_lock(&instance->reset_mutex); 8128 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 8129 megasas_return_cmd(instance, cmd); 8130 mutex_unlock(&instance->reset_mutex); 8131 return -1; 8132 } 8133 mutex_unlock(&instance->reset_mutex); 8134 } 8135 8136 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 8137 error = megasas_set_crash_dump_params_ioctl(cmd); 8138 megasas_return_cmd(instance, cmd); 8139 return error; 8140 } 8141 8142 /* 8143 * The management interface between applications and the fw uses 8144 * MFI frames. E.g, RAID configuration changes, LD property changes 8145 * etc are accomplishes through different kinds of MFI frames. The 8146 * driver needs to care only about substituting user buffers with 8147 * kernel buffers in SGLs. The location of SGL is embedded in the 8148 * struct iocpacket itself. 8149 */ 8150 if (instance->consistent_mask_64bit) 8151 kern_sge64 = (struct megasas_sge64 *) 8152 ((unsigned long)cmd->frame + ioc->sgl_off); 8153 else 8154 kern_sge32 = (struct megasas_sge32 *) 8155 ((unsigned long)cmd->frame + ioc->sgl_off); 8156 8157 /* 8158 * For each user buffer, create a mirror buffer and copy in 8159 */ 8160 for (i = 0; i < ioc->sge_count; i++) { 8161 if (!ioc->sgl[i].iov_len) 8162 continue; 8163 8164 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 8165 ioc->sgl[i].iov_len, 8166 &buf_handle, GFP_KERNEL); 8167 if (!kbuff_arr[i]) { 8168 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 8169 "kernel SGL buffer for IOCTL\n"); 8170 error = -ENOMEM; 8171 goto out; 8172 } 8173 8174 /* 8175 * We don't change the dma_coherent_mask, so 8176 * dma_alloc_coherent only returns 32bit addresses 8177 */ 8178 if (instance->consistent_mask_64bit) { 8179 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); 8180 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8181 } else { 8182 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 8183 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8184 } 8185 8186 /* 8187 * We created a kernel buffer corresponding to the 8188 * user buffer. Now copy in from the user buffer 8189 */ 8190 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 8191 (u32) (ioc->sgl[i].iov_len))) { 8192 error = -EFAULT; 8193 goto out; 8194 } 8195 } 8196 8197 if (ioc->sense_len) { 8198 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 8199 &sense_handle, GFP_KERNEL); 8200 if (!sense) { 8201 error = -ENOMEM; 8202 goto out; 8203 } 8204 8205 sense_ptr = 8206 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); 8207 if (instance->consistent_mask_64bit) 8208 *sense_ptr = cpu_to_le64(sense_handle); 8209 else 8210 *sense_ptr = cpu_to_le32(sense_handle); 8211 } 8212 8213 /* 8214 * Set the sync_cmd flag so that the ISR knows not to complete this 8215 * cmd to the SCSI mid-layer 8216 */ 8217 cmd->sync_cmd = 1; 8218 8219 ret = megasas_issue_blocked_cmd(instance, cmd, 0); 8220 switch (ret) { 8221 case DCMD_INIT: 8222 case DCMD_BUSY: 8223 cmd->sync_cmd = 0; 8224 dev_err(&instance->pdev->dev, 8225 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", 8226 __func__, __LINE__, cmd->frame->hdr.cmd, opcode, 8227 cmd->cmd_status_drv); 8228 error = -EBUSY; 8229 goto out; 8230 } 8231 8232 cmd->sync_cmd = 0; 8233 8234 if (instance->unload == 1) { 8235 dev_info(&instance->pdev->dev, "Driver unload is in progress " 8236 "don't submit data to application\n"); 8237 goto out; 8238 } 8239 /* 8240 * copy out the kernel buffers to user buffers 8241 */ 8242 for (i = 0; i < ioc->sge_count; i++) { 8243 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 8244 ioc->sgl[i].iov_len)) { 8245 error = -EFAULT; 8246 goto out; 8247 } 8248 } 8249 8250 /* 8251 * copy out the sense 8252 */ 8253 if (ioc->sense_len) { 8254 /* 8255 * sense_ptr points to the location that has the user 8256 * sense buffer address 8257 */ 8258 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + 8259 ioc->sense_off); 8260 8261 if (copy_to_user((void __user *)((unsigned long) 8262 get_unaligned((unsigned long *)sense_ptr)), 8263 sense, ioc->sense_len)) { 8264 dev_err(&instance->pdev->dev, "Failed to copy out to user " 8265 "sense data\n"); 8266 error = -EFAULT; 8267 goto out; 8268 } 8269 } 8270 8271 /* 8272 * copy the status codes returned by the fw 8273 */ 8274 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 8275 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 8276 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 8277 error = -EFAULT; 8278 } 8279 8280 out: 8281 if (sense) { 8282 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 8283 sense, sense_handle); 8284 } 8285 8286 for (i = 0; i < ioc->sge_count; i++) { 8287 if (kbuff_arr[i]) { 8288 if (instance->consistent_mask_64bit) 8289 dma_free_coherent(&instance->pdev->dev, 8290 le32_to_cpu(kern_sge64[i].length), 8291 kbuff_arr[i], 8292 le64_to_cpu(kern_sge64[i].phys_addr)); 8293 else 8294 dma_free_coherent(&instance->pdev->dev, 8295 le32_to_cpu(kern_sge32[i].length), 8296 kbuff_arr[i], 8297 le32_to_cpu(kern_sge32[i].phys_addr)); 8298 kbuff_arr[i] = NULL; 8299 } 8300 } 8301 8302 megasas_return_cmd(instance, cmd); 8303 return error; 8304 } 8305 8306 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 8307 { 8308 struct megasas_iocpacket __user *user_ioc = 8309 (struct megasas_iocpacket __user *)arg; 8310 struct megasas_iocpacket *ioc; 8311 struct megasas_instance *instance; 8312 int error; 8313 8314 ioc = memdup_user(user_ioc, sizeof(*ioc)); 8315 if (IS_ERR(ioc)) 8316 return PTR_ERR(ioc); 8317 8318 instance = megasas_lookup_instance(ioc->host_no); 8319 if (!instance) { 8320 error = -ENODEV; 8321 goto out_kfree_ioc; 8322 } 8323 8324 /* Block ioctls in VF mode */ 8325 if (instance->requestorId && !allow_vf_ioctls) { 8326 error = -ENODEV; 8327 goto out_kfree_ioc; 8328 } 8329 8330 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8331 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 8332 error = -ENODEV; 8333 goto out_kfree_ioc; 8334 } 8335 8336 if (instance->unload == 1) { 8337 error = -ENODEV; 8338 goto out_kfree_ioc; 8339 } 8340 8341 if (down_interruptible(&instance->ioctl_sem)) { 8342 error = -ERESTARTSYS; 8343 goto out_kfree_ioc; 8344 } 8345 8346 if (megasas_wait_for_adapter_operational(instance)) { 8347 error = -ENODEV; 8348 goto out_up; 8349 } 8350 8351 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 8352 out_up: 8353 up(&instance->ioctl_sem); 8354 8355 out_kfree_ioc: 8356 kfree(ioc); 8357 return error; 8358 } 8359 8360 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 8361 { 8362 struct megasas_instance *instance; 8363 struct megasas_aen aen; 8364 int error; 8365 8366 if (file->private_data != file) { 8367 printk(KERN_DEBUG "megasas: fasync_helper was not " 8368 "called first\n"); 8369 return -EINVAL; 8370 } 8371 8372 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 8373 return -EFAULT; 8374 8375 instance = megasas_lookup_instance(aen.host_no); 8376 8377 if (!instance) 8378 return -ENODEV; 8379 8380 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8381 return -ENODEV; 8382 } 8383 8384 if (instance->unload == 1) { 8385 return -ENODEV; 8386 } 8387 8388 if (megasas_wait_for_adapter_operational(instance)) 8389 return -ENODEV; 8390 8391 mutex_lock(&instance->reset_mutex); 8392 error = megasas_register_aen(instance, aen.seq_num, 8393 aen.class_locale_word); 8394 mutex_unlock(&instance->reset_mutex); 8395 return error; 8396 } 8397 8398 /** 8399 * megasas_mgmt_ioctl - char node ioctl entry point 8400 */ 8401 static long 8402 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 8403 { 8404 switch (cmd) { 8405 case MEGASAS_IOC_FIRMWARE: 8406 return megasas_mgmt_ioctl_fw(file, arg); 8407 8408 case MEGASAS_IOC_GET_AEN: 8409 return megasas_mgmt_ioctl_aen(file, arg); 8410 } 8411 8412 return -ENOTTY; 8413 } 8414 8415 #ifdef CONFIG_COMPAT 8416 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) 8417 { 8418 struct compat_megasas_iocpacket __user *cioc = 8419 (struct compat_megasas_iocpacket __user *)arg; 8420 struct megasas_iocpacket __user *ioc = 8421 compat_alloc_user_space(sizeof(struct megasas_iocpacket)); 8422 int i; 8423 int error = 0; 8424 compat_uptr_t ptr; 8425 u32 local_sense_off; 8426 u32 local_sense_len; 8427 u32 user_sense_off; 8428 8429 if (clear_user(ioc, sizeof(*ioc))) 8430 return -EFAULT; 8431 8432 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || 8433 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || 8434 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || 8435 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || 8436 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || 8437 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) 8438 return -EFAULT; 8439 8440 /* 8441 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when 8442 * sense_len is not null, so prepare the 64bit value under 8443 * the same condition. 8444 */ 8445 if (get_user(local_sense_off, &ioc->sense_off) || 8446 get_user(local_sense_len, &ioc->sense_len) || 8447 get_user(user_sense_off, &cioc->sense_off)) 8448 return -EFAULT; 8449 8450 if (local_sense_off != user_sense_off) 8451 return -EINVAL; 8452 8453 if (local_sense_len) { 8454 void __user **sense_ioc_ptr = 8455 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); 8456 compat_uptr_t *sense_cioc_ptr = 8457 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); 8458 if (get_user(ptr, sense_cioc_ptr) || 8459 put_user(compat_ptr(ptr), sense_ioc_ptr)) 8460 return -EFAULT; 8461 } 8462 8463 for (i = 0; i < MAX_IOCTL_SGE; i++) { 8464 if (get_user(ptr, &cioc->sgl[i].iov_base) || 8465 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || 8466 copy_in_user(&ioc->sgl[i].iov_len, 8467 &cioc->sgl[i].iov_len, sizeof(compat_size_t))) 8468 return -EFAULT; 8469 } 8470 8471 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); 8472 8473 if (copy_in_user(&cioc->frame.hdr.cmd_status, 8474 &ioc->frame.hdr.cmd_status, sizeof(u8))) { 8475 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); 8476 return -EFAULT; 8477 } 8478 return error; 8479 } 8480 8481 static long 8482 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 8483 unsigned long arg) 8484 { 8485 switch (cmd) { 8486 case MEGASAS_IOC_FIRMWARE32: 8487 return megasas_mgmt_compat_ioctl_fw(file, arg); 8488 case MEGASAS_IOC_GET_AEN: 8489 return megasas_mgmt_ioctl_aen(file, arg); 8490 } 8491 8492 return -ENOTTY; 8493 } 8494 #endif 8495 8496 /* 8497 * File operations structure for management interface 8498 */ 8499 static const struct file_operations megasas_mgmt_fops = { 8500 .owner = THIS_MODULE, 8501 .open = megasas_mgmt_open, 8502 .fasync = megasas_mgmt_fasync, 8503 .unlocked_ioctl = megasas_mgmt_ioctl, 8504 .poll = megasas_mgmt_poll, 8505 #ifdef CONFIG_COMPAT 8506 .compat_ioctl = megasas_mgmt_compat_ioctl, 8507 #endif 8508 .llseek = noop_llseek, 8509 }; 8510 8511 /* 8512 * PCI hotplug support registration structure 8513 */ 8514 static struct pci_driver megasas_pci_driver = { 8515 8516 .name = "megaraid_sas", 8517 .id_table = megasas_pci_table, 8518 .probe = megasas_probe_one, 8519 .remove = megasas_detach_one, 8520 .suspend = megasas_suspend, 8521 .resume = megasas_resume, 8522 .shutdown = megasas_shutdown, 8523 }; 8524 8525 /* 8526 * Sysfs driver attributes 8527 */ 8528 static ssize_t version_show(struct device_driver *dd, char *buf) 8529 { 8530 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 8531 MEGASAS_VERSION); 8532 } 8533 static DRIVER_ATTR_RO(version); 8534 8535 static ssize_t release_date_show(struct device_driver *dd, char *buf) 8536 { 8537 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 8538 MEGASAS_RELDATE); 8539 } 8540 static DRIVER_ATTR_RO(release_date); 8541 8542 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) 8543 { 8544 return sprintf(buf, "%u\n", support_poll_for_event); 8545 } 8546 static DRIVER_ATTR_RO(support_poll_for_event); 8547 8548 static ssize_t support_device_change_show(struct device_driver *dd, char *buf) 8549 { 8550 return sprintf(buf, "%u\n", support_device_change); 8551 } 8552 static DRIVER_ATTR_RO(support_device_change); 8553 8554 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) 8555 { 8556 return sprintf(buf, "%u\n", megasas_dbg_lvl); 8557 } 8558 8559 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, 8560 size_t count) 8561 { 8562 int retval = count; 8563 8564 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 8565 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 8566 retval = -EINVAL; 8567 } 8568 return retval; 8569 } 8570 static DRIVER_ATTR_RW(dbg_lvl); 8571 8572 static ssize_t 8573 support_nvme_encapsulation_show(struct device_driver *dd, char *buf) 8574 { 8575 return sprintf(buf, "%u\n", support_nvme_encapsulation); 8576 } 8577 8578 static DRIVER_ATTR_RO(support_nvme_encapsulation); 8579 8580 static ssize_t 8581 support_pci_lane_margining_show(struct device_driver *dd, char *buf) 8582 { 8583 return sprintf(buf, "%u\n", support_pci_lane_margining); 8584 } 8585 8586 static DRIVER_ATTR_RO(support_pci_lane_margining); 8587 8588 static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 8589 { 8590 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 8591 scsi_remove_device(sdev); 8592 scsi_device_put(sdev); 8593 } 8594 8595 /** 8596 * megasas_update_device_list - Update the PD and LD device list from FW 8597 * after an AEN event notification 8598 * @instance: Adapter soft state 8599 * @event_type: Indicates type of event (PD or LD event) 8600 * 8601 * @return: Success or failure 8602 * 8603 * Issue DCMDs to Firmware to update the internal device list in driver. 8604 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 8605 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 8606 */ 8607 static 8608 int megasas_update_device_list(struct megasas_instance *instance, 8609 int event_type) 8610 { 8611 int dcmd_ret = DCMD_SUCCESS; 8612 8613 if (instance->enable_fw_dev_list) { 8614 dcmd_ret = megasas_host_device_list_query(instance, false); 8615 if (dcmd_ret != DCMD_SUCCESS) 8616 goto out; 8617 } else { 8618 if (event_type & SCAN_PD_CHANNEL) { 8619 dcmd_ret = megasas_get_pd_list(instance); 8620 8621 if (dcmd_ret != DCMD_SUCCESS) 8622 goto out; 8623 } 8624 8625 if (event_type & SCAN_VD_CHANNEL) { 8626 if (!instance->requestorId || 8627 (instance->requestorId && 8628 megasas_get_ld_vf_affiliation(instance, 0))) { 8629 dcmd_ret = megasas_ld_list_query(instance, 8630 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 8631 if (dcmd_ret != DCMD_SUCCESS) 8632 goto out; 8633 } 8634 } 8635 } 8636 8637 out: 8638 return dcmd_ret; 8639 } 8640 8641 /** 8642 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer 8643 * after an AEN event notification 8644 * @instance: Adapter soft state 8645 * @scan_type: Indicates type of devices (PD/LD) to add 8646 * @return void 8647 */ 8648 static 8649 void megasas_add_remove_devices(struct megasas_instance *instance, 8650 int scan_type) 8651 { 8652 int i, j; 8653 u16 pd_index = 0; 8654 u16 ld_index = 0; 8655 u16 channel = 0, id = 0; 8656 struct Scsi_Host *host; 8657 struct scsi_device *sdev1; 8658 struct MR_HOST_DEVICE_LIST *targetid_list = NULL; 8659 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; 8660 8661 host = instance->host; 8662 8663 if (instance->enable_fw_dev_list) { 8664 targetid_list = instance->host_device_list_buf; 8665 for (i = 0; i < targetid_list->count; i++) { 8666 targetid_entry = &targetid_list->host_device_list[i]; 8667 if (targetid_entry->flags.u.bits.is_sys_pd) { 8668 channel = le16_to_cpu(targetid_entry->target_id) / 8669 MEGASAS_MAX_DEV_PER_CHANNEL; 8670 id = le16_to_cpu(targetid_entry->target_id) % 8671 MEGASAS_MAX_DEV_PER_CHANNEL; 8672 } else { 8673 channel = MEGASAS_MAX_PD_CHANNELS + 8674 (le16_to_cpu(targetid_entry->target_id) / 8675 MEGASAS_MAX_DEV_PER_CHANNEL); 8676 id = le16_to_cpu(targetid_entry->target_id) % 8677 MEGASAS_MAX_DEV_PER_CHANNEL; 8678 } 8679 sdev1 = scsi_device_lookup(host, channel, id, 0); 8680 if (!sdev1) { 8681 scsi_add_device(host, channel, id, 0); 8682 } else { 8683 scsi_device_put(sdev1); 8684 } 8685 } 8686 } 8687 8688 if (scan_type & SCAN_PD_CHANNEL) { 8689 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 8690 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8691 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; 8692 sdev1 = scsi_device_lookup(host, i, j, 0); 8693 if (instance->pd_list[pd_index].driveState == 8694 MR_PD_STATE_SYSTEM) { 8695 if (!sdev1) 8696 scsi_add_device(host, i, j, 0); 8697 else 8698 scsi_device_put(sdev1); 8699 } else { 8700 if (sdev1) 8701 megasas_remove_scsi_device(sdev1); 8702 } 8703 } 8704 } 8705 } 8706 8707 if (scan_type & SCAN_VD_CHANNEL) { 8708 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 8709 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8710 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 8711 sdev1 = scsi_device_lookup(host, 8712 MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8713 if (instance->ld_ids[ld_index] != 0xff) { 8714 if (!sdev1) 8715 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8716 else 8717 scsi_device_put(sdev1); 8718 } else { 8719 if (sdev1) 8720 megasas_remove_scsi_device(sdev1); 8721 } 8722 } 8723 } 8724 } 8725 8726 } 8727 8728 static void 8729 megasas_aen_polling(struct work_struct *work) 8730 { 8731 struct megasas_aen_event *ev = 8732 container_of(work, struct megasas_aen_event, hotplug_work.work); 8733 struct megasas_instance *instance = ev->instance; 8734 union megasas_evt_class_locale class_locale; 8735 int event_type = 0; 8736 u32 seq_num; 8737 int error; 8738 u8 dcmd_ret = DCMD_SUCCESS; 8739 8740 if (!instance) { 8741 printk(KERN_ERR "invalid instance!\n"); 8742 kfree(ev); 8743 return; 8744 } 8745 8746 /* Don't run the event workqueue thread if OCR is running */ 8747 mutex_lock(&instance->reset_mutex); 8748 8749 instance->ev = NULL; 8750 if (instance->evt_detail) { 8751 megasas_decode_evt(instance); 8752 8753 switch (le32_to_cpu(instance->evt_detail->code)) { 8754 8755 case MR_EVT_PD_INSERTED: 8756 case MR_EVT_PD_REMOVED: 8757 event_type = SCAN_PD_CHANNEL; 8758 break; 8759 8760 case MR_EVT_LD_OFFLINE: 8761 case MR_EVT_CFG_CLEARED: 8762 case MR_EVT_LD_DELETED: 8763 case MR_EVT_LD_CREATED: 8764 event_type = SCAN_VD_CHANNEL; 8765 break; 8766 8767 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 8768 case MR_EVT_FOREIGN_CFG_IMPORTED: 8769 case MR_EVT_LD_STATE_CHANGE: 8770 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; 8771 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 8772 instance->host->host_no); 8773 break; 8774 8775 case MR_EVT_CTRL_PROP_CHANGED: 8776 dcmd_ret = megasas_get_ctrl_info(instance); 8777 if (dcmd_ret == DCMD_SUCCESS && 8778 instance->snapdump_wait_time) { 8779 megasas_get_snapdump_properties(instance); 8780 dev_info(&instance->pdev->dev, 8781 "Snap dump wait time\t: %d\n", 8782 instance->snapdump_wait_time); 8783 } 8784 break; 8785 default: 8786 event_type = 0; 8787 break; 8788 } 8789 } else { 8790 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 8791 mutex_unlock(&instance->reset_mutex); 8792 kfree(ev); 8793 return; 8794 } 8795 8796 if (event_type) 8797 dcmd_ret = megasas_update_device_list(instance, event_type); 8798 8799 mutex_unlock(&instance->reset_mutex); 8800 8801 if (event_type && dcmd_ret == DCMD_SUCCESS) 8802 megasas_add_remove_devices(instance, event_type); 8803 8804 if (dcmd_ret == DCMD_SUCCESS) 8805 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 8806 else 8807 seq_num = instance->last_seq_num; 8808 8809 /* Register AEN with FW for latest sequence number plus 1 */ 8810 class_locale.members.reserved = 0; 8811 class_locale.members.locale = MR_EVT_LOCALE_ALL; 8812 class_locale.members.class = MR_EVT_CLASS_DEBUG; 8813 8814 if (instance->aen_cmd != NULL) { 8815 kfree(ev); 8816 return; 8817 } 8818 8819 mutex_lock(&instance->reset_mutex); 8820 error = megasas_register_aen(instance, seq_num, 8821 class_locale.word); 8822 if (error) 8823 dev_err(&instance->pdev->dev, 8824 "register aen failed error %x\n", error); 8825 8826 mutex_unlock(&instance->reset_mutex); 8827 kfree(ev); 8828 } 8829 8830 /** 8831 * megasas_init - Driver load entry point 8832 */ 8833 static int __init megasas_init(void) 8834 { 8835 int rval; 8836 8837 /* 8838 * Booted in kdump kernel, minimize memory footprints by 8839 * disabling few features 8840 */ 8841 if (reset_devices) { 8842 msix_vectors = 1; 8843 rdpq_enable = 0; 8844 dual_qdepth_disable = 1; 8845 } 8846 8847 /* 8848 * Announce driver version and other information 8849 */ 8850 pr_info("megasas: %s\n", MEGASAS_VERSION); 8851 8852 spin_lock_init(&poll_aen_lock); 8853 8854 support_poll_for_event = 2; 8855 support_device_change = 1; 8856 support_nvme_encapsulation = true; 8857 support_pci_lane_margining = true; 8858 8859 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 8860 8861 /* 8862 * Register character device node 8863 */ 8864 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 8865 8866 if (rval < 0) { 8867 printk(KERN_DEBUG "megasas: failed to open device node\n"); 8868 return rval; 8869 } 8870 8871 megasas_mgmt_majorno = rval; 8872 8873 megasas_init_debugfs(); 8874 8875 /* 8876 * Register ourselves as PCI hotplug module 8877 */ 8878 rval = pci_register_driver(&megasas_pci_driver); 8879 8880 if (rval) { 8881 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 8882 goto err_pcidrv; 8883 } 8884 8885 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 8886 (event_log_level > MFI_EVT_CLASS_DEAD)) { 8887 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"); 8888 event_log_level = MFI_EVT_CLASS_CRITICAL; 8889 } 8890 8891 rval = driver_create_file(&megasas_pci_driver.driver, 8892 &driver_attr_version); 8893 if (rval) 8894 goto err_dcf_attr_ver; 8895 8896 rval = driver_create_file(&megasas_pci_driver.driver, 8897 &driver_attr_release_date); 8898 if (rval) 8899 goto err_dcf_rel_date; 8900 8901 rval = driver_create_file(&megasas_pci_driver.driver, 8902 &driver_attr_support_poll_for_event); 8903 if (rval) 8904 goto err_dcf_support_poll_for_event; 8905 8906 rval = driver_create_file(&megasas_pci_driver.driver, 8907 &driver_attr_dbg_lvl); 8908 if (rval) 8909 goto err_dcf_dbg_lvl; 8910 rval = driver_create_file(&megasas_pci_driver.driver, 8911 &driver_attr_support_device_change); 8912 if (rval) 8913 goto err_dcf_support_device_change; 8914 8915 rval = driver_create_file(&megasas_pci_driver.driver, 8916 &driver_attr_support_nvme_encapsulation); 8917 if (rval) 8918 goto err_dcf_support_nvme_encapsulation; 8919 8920 rval = driver_create_file(&megasas_pci_driver.driver, 8921 &driver_attr_support_pci_lane_margining); 8922 if (rval) 8923 goto err_dcf_support_pci_lane_margining; 8924 8925 return rval; 8926 8927 err_dcf_support_pci_lane_margining: 8928 driver_remove_file(&megasas_pci_driver.driver, 8929 &driver_attr_support_nvme_encapsulation); 8930 8931 err_dcf_support_nvme_encapsulation: 8932 driver_remove_file(&megasas_pci_driver.driver, 8933 &driver_attr_support_device_change); 8934 8935 err_dcf_support_device_change: 8936 driver_remove_file(&megasas_pci_driver.driver, 8937 &driver_attr_dbg_lvl); 8938 err_dcf_dbg_lvl: 8939 driver_remove_file(&megasas_pci_driver.driver, 8940 &driver_attr_support_poll_for_event); 8941 err_dcf_support_poll_for_event: 8942 driver_remove_file(&megasas_pci_driver.driver, 8943 &driver_attr_release_date); 8944 err_dcf_rel_date: 8945 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8946 err_dcf_attr_ver: 8947 pci_unregister_driver(&megasas_pci_driver); 8948 err_pcidrv: 8949 megasas_exit_debugfs(); 8950 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8951 return rval; 8952 } 8953 8954 /** 8955 * megasas_exit - Driver unload entry point 8956 */ 8957 static void __exit megasas_exit(void) 8958 { 8959 driver_remove_file(&megasas_pci_driver.driver, 8960 &driver_attr_dbg_lvl); 8961 driver_remove_file(&megasas_pci_driver.driver, 8962 &driver_attr_support_poll_for_event); 8963 driver_remove_file(&megasas_pci_driver.driver, 8964 &driver_attr_support_device_change); 8965 driver_remove_file(&megasas_pci_driver.driver, 8966 &driver_attr_release_date); 8967 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8968 driver_remove_file(&megasas_pci_driver.driver, 8969 &driver_attr_support_nvme_encapsulation); 8970 driver_remove_file(&megasas_pci_driver.driver, 8971 &driver_attr_support_pci_lane_margining); 8972 8973 pci_unregister_driver(&megasas_pci_driver); 8974 megasas_exit_debugfs(); 8975 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8976 } 8977 8978 module_init(megasas_init); 8979 module_exit(megasas_exit); 8980