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 += snprintf(loc + bytes_wrote, PAGE_SIZE, 2991 "%08x: %08x\n", (i * 4), 2992 readl(®[i])); 2993 } 2994 return bytes_wrote; 2995 } 2996 2997 /** 2998 * megasas_reset_bus_host - Bus & host reset handler entry point 2999 */ 3000 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 3001 { 3002 int ret; 3003 struct megasas_instance *instance; 3004 3005 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3006 3007 scmd_printk(KERN_INFO, scmd, 3008 "OCR is requested due to IO timeout!!\n"); 3009 3010 scmd_printk(KERN_INFO, scmd, 3011 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 3012 scmd->device->host->shost_state, 3013 scsi_host_busy(scmd->device->host), 3014 atomic_read(&instance->fw_outstanding)); 3015 /* 3016 * First wait for all commands to complete 3017 */ 3018 if (instance->adapter_type == MFI_SERIES) { 3019 ret = megasas_generic_reset(scmd); 3020 } else { 3021 megasas_dump_fusion_io(scmd); 3022 ret = megasas_reset_fusion(scmd->device->host, 3023 SCSIIO_TIMEOUT_OCR); 3024 } 3025 3026 return ret; 3027 } 3028 3029 /** 3030 * megasas_task_abort - Issues task abort request to firmware 3031 * (supported only for fusion adapters) 3032 * @scmd: SCSI command pointer 3033 */ 3034 static int megasas_task_abort(struct scsi_cmnd *scmd) 3035 { 3036 int ret; 3037 struct megasas_instance *instance; 3038 3039 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3040 3041 if (instance->adapter_type != MFI_SERIES) 3042 ret = megasas_task_abort_fusion(scmd); 3043 else { 3044 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 3045 ret = FAILED; 3046 } 3047 3048 return ret; 3049 } 3050 3051 /** 3052 * megasas_reset_target: Issues target reset request to firmware 3053 * (supported only for fusion adapters) 3054 * @scmd: SCSI command pointer 3055 */ 3056 static int megasas_reset_target(struct scsi_cmnd *scmd) 3057 { 3058 int ret; 3059 struct megasas_instance *instance; 3060 3061 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3062 3063 if (instance->adapter_type != MFI_SERIES) 3064 ret = megasas_reset_target_fusion(scmd); 3065 else { 3066 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 3067 ret = FAILED; 3068 } 3069 3070 return ret; 3071 } 3072 3073 /** 3074 * megasas_bios_param - Returns disk geometry for a disk 3075 * @sdev: device handle 3076 * @bdev: block device 3077 * @capacity: drive capacity 3078 * @geom: geometry parameters 3079 */ 3080 static int 3081 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, 3082 sector_t capacity, int geom[]) 3083 { 3084 int heads; 3085 int sectors; 3086 sector_t cylinders; 3087 unsigned long tmp; 3088 3089 /* Default heads (64) & sectors (32) */ 3090 heads = 64; 3091 sectors = 32; 3092 3093 tmp = heads * sectors; 3094 cylinders = capacity; 3095 3096 sector_div(cylinders, tmp); 3097 3098 /* 3099 * Handle extended translation size for logical drives > 1Gb 3100 */ 3101 3102 if (capacity >= 0x200000) { 3103 heads = 255; 3104 sectors = 63; 3105 tmp = heads*sectors; 3106 cylinders = capacity; 3107 sector_div(cylinders, tmp); 3108 } 3109 3110 geom[0] = heads; 3111 geom[1] = sectors; 3112 geom[2] = cylinders; 3113 3114 return 0; 3115 } 3116 3117 static void megasas_aen_polling(struct work_struct *work); 3118 3119 /** 3120 * megasas_service_aen - Processes an event notification 3121 * @instance: Adapter soft state 3122 * @cmd: AEN command completed by the ISR 3123 * 3124 * For AEN, driver sends a command down to FW that is held by the FW till an 3125 * event occurs. When an event of interest occurs, FW completes the command 3126 * that it was previously holding. 3127 * 3128 * This routines sends SIGIO signal to processes that have registered with the 3129 * driver for AEN. 3130 */ 3131 static void 3132 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 3133 { 3134 unsigned long flags; 3135 3136 /* 3137 * Don't signal app if it is just an aborted previously registered aen 3138 */ 3139 if ((!cmd->abort_aen) && (instance->unload == 0)) { 3140 spin_lock_irqsave(&poll_aen_lock, flags); 3141 megasas_poll_wait_aen = 1; 3142 spin_unlock_irqrestore(&poll_aen_lock, flags); 3143 wake_up(&megasas_poll_wait); 3144 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 3145 } 3146 else 3147 cmd->abort_aen = 0; 3148 3149 instance->aen_cmd = NULL; 3150 3151 megasas_return_cmd(instance, cmd); 3152 3153 if ((instance->unload == 0) && 3154 ((instance->issuepend_done == 1))) { 3155 struct megasas_aen_event *ev; 3156 3157 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3158 if (!ev) { 3159 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 3160 } else { 3161 ev->instance = instance; 3162 instance->ev = ev; 3163 INIT_DELAYED_WORK(&ev->hotplug_work, 3164 megasas_aen_polling); 3165 schedule_delayed_work(&ev->hotplug_work, 0); 3166 } 3167 } 3168 } 3169 3170 static ssize_t 3171 fw_crash_buffer_store(struct device *cdev, 3172 struct device_attribute *attr, const char *buf, size_t count) 3173 { 3174 struct Scsi_Host *shost = class_to_shost(cdev); 3175 struct megasas_instance *instance = 3176 (struct megasas_instance *) shost->hostdata; 3177 int val = 0; 3178 unsigned long flags; 3179 3180 if (kstrtoint(buf, 0, &val) != 0) 3181 return -EINVAL; 3182 3183 spin_lock_irqsave(&instance->crashdump_lock, flags); 3184 instance->fw_crash_buffer_offset = val; 3185 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3186 return strlen(buf); 3187 } 3188 3189 static ssize_t 3190 fw_crash_buffer_show(struct device *cdev, 3191 struct device_attribute *attr, char *buf) 3192 { 3193 struct Scsi_Host *shost = class_to_shost(cdev); 3194 struct megasas_instance *instance = 3195 (struct megasas_instance *) shost->hostdata; 3196 u32 size; 3197 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 3198 unsigned long chunk_left_bytes; 3199 unsigned long src_addr; 3200 unsigned long flags; 3201 u32 buff_offset; 3202 3203 spin_lock_irqsave(&instance->crashdump_lock, flags); 3204 buff_offset = instance->fw_crash_buffer_offset; 3205 if (!instance->crash_dump_buf && 3206 !((instance->fw_crash_state == AVAILABLE) || 3207 (instance->fw_crash_state == COPYING))) { 3208 dev_err(&instance->pdev->dev, 3209 "Firmware crash dump is not available\n"); 3210 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3211 return -EINVAL; 3212 } 3213 3214 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 3215 dev_err(&instance->pdev->dev, 3216 "Firmware crash dump offset is out of range\n"); 3217 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3218 return 0; 3219 } 3220 3221 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 3222 chunk_left_bytes = dmachunk - (buff_offset % dmachunk); 3223 size = (size > chunk_left_bytes) ? chunk_left_bytes : size; 3224 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3225 3226 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 3227 (buff_offset % dmachunk); 3228 memcpy(buf, (void *)src_addr, size); 3229 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3230 3231 return size; 3232 } 3233 3234 static ssize_t 3235 fw_crash_buffer_size_show(struct device *cdev, 3236 struct device_attribute *attr, char *buf) 3237 { 3238 struct Scsi_Host *shost = class_to_shost(cdev); 3239 struct megasas_instance *instance = 3240 (struct megasas_instance *) shost->hostdata; 3241 3242 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3243 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3244 } 3245 3246 static ssize_t 3247 fw_crash_state_store(struct device *cdev, 3248 struct device_attribute *attr, const char *buf, size_t count) 3249 { 3250 struct Scsi_Host *shost = class_to_shost(cdev); 3251 struct megasas_instance *instance = 3252 (struct megasas_instance *) shost->hostdata; 3253 int val = 0; 3254 unsigned long flags; 3255 3256 if (kstrtoint(buf, 0, &val) != 0) 3257 return -EINVAL; 3258 3259 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3260 dev_err(&instance->pdev->dev, "application updates invalid " 3261 "firmware crash state\n"); 3262 return -EINVAL; 3263 } 3264 3265 instance->fw_crash_state = val; 3266 3267 if ((val == COPIED) || (val == COPY_ERROR)) { 3268 spin_lock_irqsave(&instance->crashdump_lock, flags); 3269 megasas_free_host_crash_buffer(instance); 3270 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3271 if (val == COPY_ERROR) 3272 dev_info(&instance->pdev->dev, "application failed to " 3273 "copy Firmware crash dump\n"); 3274 else 3275 dev_info(&instance->pdev->dev, "Firmware crash dump " 3276 "copied successfully\n"); 3277 } 3278 return strlen(buf); 3279 } 3280 3281 static ssize_t 3282 fw_crash_state_show(struct device *cdev, 3283 struct device_attribute *attr, char *buf) 3284 { 3285 struct Scsi_Host *shost = class_to_shost(cdev); 3286 struct megasas_instance *instance = 3287 (struct megasas_instance *) shost->hostdata; 3288 3289 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3290 } 3291 3292 static ssize_t 3293 page_size_show(struct device *cdev, 3294 struct device_attribute *attr, char *buf) 3295 { 3296 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3297 } 3298 3299 static ssize_t 3300 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3301 char *buf) 3302 { 3303 struct Scsi_Host *shost = class_to_shost(cdev); 3304 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3305 3306 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3307 } 3308 3309 static ssize_t 3310 fw_cmds_outstanding_show(struct device *cdev, 3311 struct device_attribute *attr, char *buf) 3312 { 3313 struct Scsi_Host *shost = class_to_shost(cdev); 3314 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3315 3316 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); 3317 } 3318 3319 static ssize_t 3320 enable_sdev_max_qd_show(struct device *cdev, 3321 struct device_attribute *attr, char *buf) 3322 { 3323 struct Scsi_Host *shost = class_to_shost(cdev); 3324 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3325 3326 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); 3327 } 3328 3329 static ssize_t 3330 enable_sdev_max_qd_store(struct device *cdev, 3331 struct device_attribute *attr, const char *buf, size_t count) 3332 { 3333 struct Scsi_Host *shost = class_to_shost(cdev); 3334 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3335 u32 val = 0; 3336 bool is_target_prop; 3337 int ret_target_prop = DCMD_FAILED; 3338 struct scsi_device *sdev; 3339 3340 if (kstrtou32(buf, 0, &val) != 0) { 3341 pr_err("megasas: could not set enable_sdev_max_qd\n"); 3342 return -EINVAL; 3343 } 3344 3345 mutex_lock(&instance->reset_mutex); 3346 if (val) 3347 instance->enable_sdev_max_qd = true; 3348 else 3349 instance->enable_sdev_max_qd = false; 3350 3351 shost_for_each_device(sdev, shost) { 3352 ret_target_prop = megasas_get_target_prop(instance, sdev); 3353 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 3354 megasas_set_fw_assisted_qd(sdev, is_target_prop); 3355 } 3356 mutex_unlock(&instance->reset_mutex); 3357 3358 return strlen(buf); 3359 } 3360 3361 static ssize_t 3362 dump_system_regs_show(struct device *cdev, 3363 struct device_attribute *attr, char *buf) 3364 { 3365 struct Scsi_Host *shost = class_to_shost(cdev); 3366 struct megasas_instance *instance = 3367 (struct megasas_instance *)shost->hostdata; 3368 3369 return megasas_dump_sys_regs(instance->reg_set, buf); 3370 } 3371 3372 static ssize_t 3373 raid_map_id_show(struct device *cdev, struct device_attribute *attr, 3374 char *buf) 3375 { 3376 struct Scsi_Host *shost = class_to_shost(cdev); 3377 struct megasas_instance *instance = 3378 (struct megasas_instance *)shost->hostdata; 3379 3380 return snprintf(buf, PAGE_SIZE, "%ld\n", 3381 (unsigned long)instance->map_id); 3382 } 3383 3384 static DEVICE_ATTR_RW(fw_crash_buffer); 3385 static DEVICE_ATTR_RO(fw_crash_buffer_size); 3386 static DEVICE_ATTR_RW(fw_crash_state); 3387 static DEVICE_ATTR_RO(page_size); 3388 static DEVICE_ATTR_RO(ldio_outstanding); 3389 static DEVICE_ATTR_RO(fw_cmds_outstanding); 3390 static DEVICE_ATTR_RW(enable_sdev_max_qd); 3391 static DEVICE_ATTR_RO(dump_system_regs); 3392 static DEVICE_ATTR_RO(raid_map_id); 3393 3394 static struct device_attribute *megaraid_host_attrs[] = { 3395 &dev_attr_fw_crash_buffer_size, 3396 &dev_attr_fw_crash_buffer, 3397 &dev_attr_fw_crash_state, 3398 &dev_attr_page_size, 3399 &dev_attr_ldio_outstanding, 3400 &dev_attr_fw_cmds_outstanding, 3401 &dev_attr_enable_sdev_max_qd, 3402 &dev_attr_dump_system_regs, 3403 &dev_attr_raid_map_id, 3404 NULL, 3405 }; 3406 3407 /* 3408 * Scsi host template for megaraid_sas driver 3409 */ 3410 static struct scsi_host_template megasas_template = { 3411 3412 .module = THIS_MODULE, 3413 .name = "Avago SAS based MegaRAID driver", 3414 .proc_name = "megaraid_sas", 3415 .slave_configure = megasas_slave_configure, 3416 .slave_alloc = megasas_slave_alloc, 3417 .slave_destroy = megasas_slave_destroy, 3418 .queuecommand = megasas_queue_command, 3419 .eh_target_reset_handler = megasas_reset_target, 3420 .eh_abort_handler = megasas_task_abort, 3421 .eh_host_reset_handler = megasas_reset_bus_host, 3422 .eh_timed_out = megasas_reset_timer, 3423 .shost_attrs = megaraid_host_attrs, 3424 .bios_param = megasas_bios_param, 3425 .change_queue_depth = scsi_change_queue_depth, 3426 .max_segment_size = 0xffffffff, 3427 }; 3428 3429 /** 3430 * megasas_complete_int_cmd - Completes an internal command 3431 * @instance: Adapter soft state 3432 * @cmd: Command to be completed 3433 * 3434 * The megasas_issue_blocked_cmd() function waits for a command to complete 3435 * after it issues a command. This function wakes up that waiting routine by 3436 * calling wake_up() on the wait queue. 3437 */ 3438 static void 3439 megasas_complete_int_cmd(struct megasas_instance *instance, 3440 struct megasas_cmd *cmd) 3441 { 3442 if (cmd->cmd_status_drv == DCMD_INIT) 3443 cmd->cmd_status_drv = 3444 (cmd->frame->io.cmd_status == MFI_STAT_OK) ? 3445 DCMD_SUCCESS : DCMD_FAILED; 3446 3447 wake_up(&instance->int_cmd_wait_q); 3448 } 3449 3450 /** 3451 * megasas_complete_abort - Completes aborting a command 3452 * @instance: Adapter soft state 3453 * @cmd: Cmd that was issued to abort another cmd 3454 * 3455 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3456 * after it issues an abort on a previously issued command. This function 3457 * wakes up all functions waiting on the same wait queue. 3458 */ 3459 static void 3460 megasas_complete_abort(struct megasas_instance *instance, 3461 struct megasas_cmd *cmd) 3462 { 3463 if (cmd->sync_cmd) { 3464 cmd->sync_cmd = 0; 3465 cmd->cmd_status_drv = DCMD_SUCCESS; 3466 wake_up(&instance->abort_cmd_wait_q); 3467 } 3468 } 3469 3470 /** 3471 * megasas_complete_cmd - Completes a command 3472 * @instance: Adapter soft state 3473 * @cmd: Command to be completed 3474 * @alt_status: If non-zero, use this value as status to 3475 * SCSI mid-layer instead of the value returned 3476 * by the FW. This should be used if caller wants 3477 * an alternate status (as in the case of aborted 3478 * commands) 3479 */ 3480 void 3481 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3482 u8 alt_status) 3483 { 3484 int exception = 0; 3485 struct megasas_header *hdr = &cmd->frame->hdr; 3486 unsigned long flags; 3487 struct fusion_context *fusion = instance->ctrl_context; 3488 u32 opcode, status; 3489 3490 /* flag for the retry reset */ 3491 cmd->retry_for_fw_reset = 0; 3492 3493 if (cmd->scmd) 3494 cmd->scmd->SCp.ptr = NULL; 3495 3496 switch (hdr->cmd) { 3497 case MFI_CMD_INVALID: 3498 /* Some older 1068 controller FW may keep a pended 3499 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3500 when booting the kdump kernel. Ignore this command to 3501 prevent a kernel panic on shutdown of the kdump kernel. */ 3502 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3503 "completed\n"); 3504 dev_warn(&instance->pdev->dev, "If you have a controller " 3505 "other than PERC5, please upgrade your firmware\n"); 3506 break; 3507 case MFI_CMD_PD_SCSI_IO: 3508 case MFI_CMD_LD_SCSI_IO: 3509 3510 /* 3511 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3512 * issued either through an IO path or an IOCTL path. If it 3513 * was via IOCTL, we will send it to internal completion. 3514 */ 3515 if (cmd->sync_cmd) { 3516 cmd->sync_cmd = 0; 3517 megasas_complete_int_cmd(instance, cmd); 3518 break; 3519 } 3520 /* fall through */ 3521 3522 case MFI_CMD_LD_READ: 3523 case MFI_CMD_LD_WRITE: 3524 3525 if (alt_status) { 3526 cmd->scmd->result = alt_status << 16; 3527 exception = 1; 3528 } 3529 3530 if (exception) { 3531 3532 atomic_dec(&instance->fw_outstanding); 3533 3534 scsi_dma_unmap(cmd->scmd); 3535 cmd->scmd->scsi_done(cmd->scmd); 3536 megasas_return_cmd(instance, cmd); 3537 3538 break; 3539 } 3540 3541 switch (hdr->cmd_status) { 3542 3543 case MFI_STAT_OK: 3544 cmd->scmd->result = DID_OK << 16; 3545 break; 3546 3547 case MFI_STAT_SCSI_IO_FAILED: 3548 case MFI_STAT_LD_INIT_IN_PROGRESS: 3549 cmd->scmd->result = 3550 (DID_ERROR << 16) | hdr->scsi_status; 3551 break; 3552 3553 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3554 3555 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3556 3557 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3558 memset(cmd->scmd->sense_buffer, 0, 3559 SCSI_SENSE_BUFFERSIZE); 3560 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3561 hdr->sense_len); 3562 3563 cmd->scmd->result |= DRIVER_SENSE << 24; 3564 } 3565 3566 break; 3567 3568 case MFI_STAT_LD_OFFLINE: 3569 case MFI_STAT_DEVICE_NOT_FOUND: 3570 cmd->scmd->result = DID_BAD_TARGET << 16; 3571 break; 3572 3573 default: 3574 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3575 hdr->cmd_status); 3576 cmd->scmd->result = DID_ERROR << 16; 3577 break; 3578 } 3579 3580 atomic_dec(&instance->fw_outstanding); 3581 3582 scsi_dma_unmap(cmd->scmd); 3583 cmd->scmd->scsi_done(cmd->scmd); 3584 megasas_return_cmd(instance, cmd); 3585 3586 break; 3587 3588 case MFI_CMD_SMP: 3589 case MFI_CMD_STP: 3590 case MFI_CMD_NVME: 3591 case MFI_CMD_TOOLBOX: 3592 megasas_complete_int_cmd(instance, cmd); 3593 break; 3594 3595 case MFI_CMD_DCMD: 3596 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3597 /* Check for LD map update */ 3598 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3599 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3600 fusion->fast_path_io = 0; 3601 spin_lock_irqsave(instance->host->host_lock, flags); 3602 status = cmd->frame->hdr.cmd_status; 3603 instance->map_update_cmd = NULL; 3604 if (status != MFI_STAT_OK) { 3605 if (status != MFI_STAT_NOT_FOUND) 3606 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3607 cmd->frame->hdr.cmd_status); 3608 else { 3609 megasas_return_cmd(instance, cmd); 3610 spin_unlock_irqrestore( 3611 instance->host->host_lock, 3612 flags); 3613 break; 3614 } 3615 } 3616 3617 megasas_return_cmd(instance, cmd); 3618 3619 /* 3620 * Set fast path IO to ZERO. 3621 * Validate Map will set proper value. 3622 * Meanwhile all IOs will go as LD IO. 3623 */ 3624 if (status == MFI_STAT_OK && 3625 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { 3626 instance->map_id++; 3627 fusion->fast_path_io = 1; 3628 } else { 3629 fusion->fast_path_io = 0; 3630 } 3631 3632 megasas_sync_map_info(instance); 3633 spin_unlock_irqrestore(instance->host->host_lock, 3634 flags); 3635 break; 3636 } 3637 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3638 opcode == MR_DCMD_CTRL_EVENT_GET) { 3639 spin_lock_irqsave(&poll_aen_lock, flags); 3640 megasas_poll_wait_aen = 0; 3641 spin_unlock_irqrestore(&poll_aen_lock, flags); 3642 } 3643 3644 /* FW has an updated PD sequence */ 3645 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3646 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3647 3648 spin_lock_irqsave(instance->host->host_lock, flags); 3649 status = cmd->frame->hdr.cmd_status; 3650 instance->jbod_seq_cmd = NULL; 3651 megasas_return_cmd(instance, cmd); 3652 3653 if (status == MFI_STAT_OK) { 3654 instance->pd_seq_map_id++; 3655 /* Re-register a pd sync seq num cmd */ 3656 if (megasas_sync_pd_seq_num(instance, true)) 3657 instance->use_seqnum_jbod_fp = false; 3658 } else 3659 instance->use_seqnum_jbod_fp = false; 3660 3661 spin_unlock_irqrestore(instance->host->host_lock, flags); 3662 break; 3663 } 3664 3665 /* 3666 * See if got an event notification 3667 */ 3668 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3669 megasas_service_aen(instance, cmd); 3670 else 3671 megasas_complete_int_cmd(instance, cmd); 3672 3673 break; 3674 3675 case MFI_CMD_ABORT: 3676 /* 3677 * Cmd issued to abort another cmd returned 3678 */ 3679 megasas_complete_abort(instance, cmd); 3680 break; 3681 3682 default: 3683 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3684 hdr->cmd); 3685 megasas_complete_int_cmd(instance, cmd); 3686 break; 3687 } 3688 } 3689 3690 /** 3691 * megasas_issue_pending_cmds_again - issue all pending cmds 3692 * in FW again because of the fw reset 3693 * @instance: Adapter soft state 3694 */ 3695 static inline void 3696 megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3697 { 3698 struct megasas_cmd *cmd; 3699 struct list_head clist_local; 3700 union megasas_evt_class_locale class_locale; 3701 unsigned long flags; 3702 u32 seq_num; 3703 3704 INIT_LIST_HEAD(&clist_local); 3705 spin_lock_irqsave(&instance->hba_lock, flags); 3706 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3707 spin_unlock_irqrestore(&instance->hba_lock, flags); 3708 3709 while (!list_empty(&clist_local)) { 3710 cmd = list_entry((&clist_local)->next, 3711 struct megasas_cmd, list); 3712 list_del_init(&cmd->list); 3713 3714 if (cmd->sync_cmd || cmd->scmd) { 3715 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3716 "detected to be pending while HBA reset\n", 3717 cmd, cmd->scmd, cmd->sync_cmd); 3718 3719 cmd->retry_for_fw_reset++; 3720 3721 if (cmd->retry_for_fw_reset == 3) { 3722 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3723 "was tried multiple times during reset." 3724 "Shutting down the HBA\n", 3725 cmd, cmd->scmd, cmd->sync_cmd); 3726 instance->instancet->disable_intr(instance); 3727 atomic_set(&instance->fw_reset_no_pci_access, 1); 3728 megaraid_sas_kill_hba(instance); 3729 return; 3730 } 3731 } 3732 3733 if (cmd->sync_cmd == 1) { 3734 if (cmd->scmd) { 3735 dev_notice(&instance->pdev->dev, "unexpected" 3736 "cmd attached to internal command!\n"); 3737 } 3738 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3739 "on the internal reset queue," 3740 "issue it again.\n", cmd); 3741 cmd->cmd_status_drv = DCMD_INIT; 3742 instance->instancet->fire_cmd(instance, 3743 cmd->frame_phys_addr, 3744 0, instance->reg_set); 3745 } else if (cmd->scmd) { 3746 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3747 "detected on the internal queue, issue again.\n", 3748 cmd, cmd->scmd->cmnd[0]); 3749 3750 atomic_inc(&instance->fw_outstanding); 3751 instance->instancet->fire_cmd(instance, 3752 cmd->frame_phys_addr, 3753 cmd->frame_count-1, instance->reg_set); 3754 } else { 3755 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3756 "internal reset defer list while re-issue!!\n", 3757 cmd); 3758 } 3759 } 3760 3761 if (instance->aen_cmd) { 3762 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3763 megasas_return_cmd(instance, instance->aen_cmd); 3764 3765 instance->aen_cmd = NULL; 3766 } 3767 3768 /* 3769 * Initiate AEN (Asynchronous Event Notification) 3770 */ 3771 seq_num = instance->last_seq_num; 3772 class_locale.members.reserved = 0; 3773 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3774 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3775 3776 megasas_register_aen(instance, seq_num, class_locale.word); 3777 } 3778 3779 /** 3780 * Move the internal reset pending commands to a deferred queue. 3781 * 3782 * We move the commands pending at internal reset time to a 3783 * pending queue. This queue would be flushed after successful 3784 * completion of the internal reset sequence. if the internal reset 3785 * did not complete in time, the kernel reset handler would flush 3786 * these commands. 3787 **/ 3788 static void 3789 megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3790 { 3791 struct megasas_cmd *cmd; 3792 int i; 3793 u16 max_cmd = instance->max_fw_cmds; 3794 u32 defer_index; 3795 unsigned long flags; 3796 3797 defer_index = 0; 3798 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3799 for (i = 0; i < max_cmd; i++) { 3800 cmd = instance->cmd_list[i]; 3801 if (cmd->sync_cmd == 1 || cmd->scmd) { 3802 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3803 "on the defer queue as internal\n", 3804 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3805 3806 if (!list_empty(&cmd->list)) { 3807 dev_notice(&instance->pdev->dev, "ERROR while" 3808 " moving this cmd:%p, %d %p, it was" 3809 "discovered on some list?\n", 3810 cmd, cmd->sync_cmd, cmd->scmd); 3811 3812 list_del_init(&cmd->list); 3813 } 3814 defer_index++; 3815 list_add_tail(&cmd->list, 3816 &instance->internal_reset_pending_q); 3817 } 3818 } 3819 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3820 } 3821 3822 3823 static void 3824 process_fw_state_change_wq(struct work_struct *work) 3825 { 3826 struct megasas_instance *instance = 3827 container_of(work, struct megasas_instance, work_init); 3828 u32 wait; 3829 unsigned long flags; 3830 3831 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3832 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3833 atomic_read(&instance->adprecovery)); 3834 return ; 3835 } 3836 3837 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3838 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3839 "state, restarting it...\n"); 3840 3841 instance->instancet->disable_intr(instance); 3842 atomic_set(&instance->fw_outstanding, 0); 3843 3844 atomic_set(&instance->fw_reset_no_pci_access, 1); 3845 instance->instancet->adp_reset(instance, instance->reg_set); 3846 atomic_set(&instance->fw_reset_no_pci_access, 0); 3847 3848 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3849 "initiating next stage...\n"); 3850 3851 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3852 "state 2 starting...\n"); 3853 3854 /* waiting for about 20 second before start the second init */ 3855 for (wait = 0; wait < 30; wait++) { 3856 msleep(1000); 3857 } 3858 3859 if (megasas_transition_to_ready(instance, 1)) { 3860 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3861 3862 atomic_set(&instance->fw_reset_no_pci_access, 1); 3863 megaraid_sas_kill_hba(instance); 3864 return ; 3865 } 3866 3867 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3868 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3869 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3870 ) { 3871 *instance->consumer = *instance->producer; 3872 } else { 3873 *instance->consumer = 0; 3874 *instance->producer = 0; 3875 } 3876 3877 megasas_issue_init_mfi(instance); 3878 3879 spin_lock_irqsave(&instance->hba_lock, flags); 3880 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 3881 spin_unlock_irqrestore(&instance->hba_lock, flags); 3882 instance->instancet->enable_intr(instance); 3883 3884 megasas_issue_pending_cmds_again(instance); 3885 instance->issuepend_done = 1; 3886 } 3887 } 3888 3889 /** 3890 * megasas_deplete_reply_queue - Processes all completed commands 3891 * @instance: Adapter soft state 3892 * @alt_status: Alternate status to be returned to 3893 * SCSI mid-layer instead of the status 3894 * returned by the FW 3895 * Note: this must be called with hba lock held 3896 */ 3897 static int 3898 megasas_deplete_reply_queue(struct megasas_instance *instance, 3899 u8 alt_status) 3900 { 3901 u32 mfiStatus; 3902 u32 fw_state; 3903 3904 if ((mfiStatus = instance->instancet->check_reset(instance, 3905 instance->reg_set)) == 1) { 3906 return IRQ_HANDLED; 3907 } 3908 3909 mfiStatus = instance->instancet->clear_intr(instance); 3910 if (mfiStatus == 0) { 3911 /* Hardware may not set outbound_intr_status in MSI-X mode */ 3912 if (!instance->msix_vectors) 3913 return IRQ_NONE; 3914 } 3915 3916 instance->mfiStatus = mfiStatus; 3917 3918 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 3919 fw_state = instance->instancet->read_fw_status_reg( 3920 instance) & MFI_STATE_MASK; 3921 3922 if (fw_state != MFI_STATE_FAULT) { 3923 dev_notice(&instance->pdev->dev, "fw state:%x\n", 3924 fw_state); 3925 } 3926 3927 if ((fw_state == MFI_STATE_FAULT) && 3928 (instance->disableOnlineCtrlReset == 0)) { 3929 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 3930 3931 if ((instance->pdev->device == 3932 PCI_DEVICE_ID_LSI_SAS1064R) || 3933 (instance->pdev->device == 3934 PCI_DEVICE_ID_DELL_PERC5) || 3935 (instance->pdev->device == 3936 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 3937 3938 *instance->consumer = 3939 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 3940 } 3941 3942 3943 instance->instancet->disable_intr(instance); 3944 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 3945 instance->issuepend_done = 0; 3946 3947 atomic_set(&instance->fw_outstanding, 0); 3948 megasas_internal_reset_defer_cmds(instance); 3949 3950 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 3951 fw_state, atomic_read(&instance->adprecovery)); 3952 3953 schedule_work(&instance->work_init); 3954 return IRQ_HANDLED; 3955 3956 } else { 3957 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 3958 fw_state, instance->disableOnlineCtrlReset); 3959 } 3960 } 3961 3962 tasklet_schedule(&instance->isr_tasklet); 3963 return IRQ_HANDLED; 3964 } 3965 /** 3966 * megasas_isr - isr entry point 3967 */ 3968 static irqreturn_t megasas_isr(int irq, void *devp) 3969 { 3970 struct megasas_irq_context *irq_context = devp; 3971 struct megasas_instance *instance = irq_context->instance; 3972 unsigned long flags; 3973 irqreturn_t rc; 3974 3975 if (atomic_read(&instance->fw_reset_no_pci_access)) 3976 return IRQ_HANDLED; 3977 3978 spin_lock_irqsave(&instance->hba_lock, flags); 3979 rc = megasas_deplete_reply_queue(instance, DID_OK); 3980 spin_unlock_irqrestore(&instance->hba_lock, flags); 3981 3982 return rc; 3983 } 3984 3985 /** 3986 * megasas_transition_to_ready - Move the FW to READY state 3987 * @instance: Adapter soft state 3988 * 3989 * During the initialization, FW passes can potentially be in any one of 3990 * several possible states. If the FW in operational, waiting-for-handshake 3991 * states, driver must take steps to bring it to ready state. Otherwise, it 3992 * has to wait for the ready state. 3993 */ 3994 int 3995 megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 3996 { 3997 int i; 3998 u8 max_wait; 3999 u32 fw_state; 4000 u32 abs_state, curr_abs_state; 4001 4002 abs_state = instance->instancet->read_fw_status_reg(instance); 4003 fw_state = abs_state & MFI_STATE_MASK; 4004 4005 if (fw_state != MFI_STATE_READY) 4006 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 4007 " state\n"); 4008 4009 while (fw_state != MFI_STATE_READY) { 4010 4011 switch (fw_state) { 4012 4013 case MFI_STATE_FAULT: 4014 dev_printk(KERN_ERR, &instance->pdev->dev, 4015 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", 4016 abs_state & MFI_STATE_FAULT_CODE, 4017 abs_state & MFI_STATE_FAULT_SUBCODE, __func__); 4018 if (ocr) { 4019 max_wait = MEGASAS_RESET_WAIT_TIME; 4020 break; 4021 } else { 4022 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4023 megasas_dump_reg_set(instance->reg_set); 4024 return -ENODEV; 4025 } 4026 4027 case MFI_STATE_WAIT_HANDSHAKE: 4028 /* 4029 * Set the CLR bit in inbound doorbell 4030 */ 4031 if ((instance->pdev->device == 4032 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4033 (instance->pdev->device == 4034 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4035 (instance->adapter_type != MFI_SERIES)) 4036 writel( 4037 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4038 &instance->reg_set->doorbell); 4039 else 4040 writel( 4041 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4042 &instance->reg_set->inbound_doorbell); 4043 4044 max_wait = MEGASAS_RESET_WAIT_TIME; 4045 break; 4046 4047 case MFI_STATE_BOOT_MESSAGE_PENDING: 4048 if ((instance->pdev->device == 4049 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4050 (instance->pdev->device == 4051 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4052 (instance->adapter_type != MFI_SERIES)) 4053 writel(MFI_INIT_HOTPLUG, 4054 &instance->reg_set->doorbell); 4055 else 4056 writel(MFI_INIT_HOTPLUG, 4057 &instance->reg_set->inbound_doorbell); 4058 4059 max_wait = MEGASAS_RESET_WAIT_TIME; 4060 break; 4061 4062 case MFI_STATE_OPERATIONAL: 4063 /* 4064 * Bring it to READY state; assuming max wait 10 secs 4065 */ 4066 instance->instancet->disable_intr(instance); 4067 if ((instance->pdev->device == 4068 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4069 (instance->pdev->device == 4070 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4071 (instance->adapter_type != MFI_SERIES)) { 4072 writel(MFI_RESET_FLAGS, 4073 &instance->reg_set->doorbell); 4074 4075 if (instance->adapter_type != MFI_SERIES) { 4076 for (i = 0; i < (10 * 1000); i += 20) { 4077 if (megasas_readl( 4078 instance, 4079 &instance-> 4080 reg_set-> 4081 doorbell) & 1) 4082 msleep(20); 4083 else 4084 break; 4085 } 4086 } 4087 } else 4088 writel(MFI_RESET_FLAGS, 4089 &instance->reg_set->inbound_doorbell); 4090 4091 max_wait = MEGASAS_RESET_WAIT_TIME; 4092 break; 4093 4094 case MFI_STATE_UNDEFINED: 4095 /* 4096 * This state should not last for more than 2 seconds 4097 */ 4098 max_wait = MEGASAS_RESET_WAIT_TIME; 4099 break; 4100 4101 case MFI_STATE_BB_INIT: 4102 max_wait = MEGASAS_RESET_WAIT_TIME; 4103 break; 4104 4105 case MFI_STATE_FW_INIT: 4106 max_wait = MEGASAS_RESET_WAIT_TIME; 4107 break; 4108 4109 case MFI_STATE_FW_INIT_2: 4110 max_wait = MEGASAS_RESET_WAIT_TIME; 4111 break; 4112 4113 case MFI_STATE_DEVICE_SCAN: 4114 max_wait = MEGASAS_RESET_WAIT_TIME; 4115 break; 4116 4117 case MFI_STATE_FLUSH_CACHE: 4118 max_wait = MEGASAS_RESET_WAIT_TIME; 4119 break; 4120 4121 default: 4122 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 4123 fw_state); 4124 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4125 megasas_dump_reg_set(instance->reg_set); 4126 return -ENODEV; 4127 } 4128 4129 /* 4130 * The cur_state should not last for more than max_wait secs 4131 */ 4132 for (i = 0; i < max_wait * 50; i++) { 4133 curr_abs_state = instance->instancet-> 4134 read_fw_status_reg(instance); 4135 4136 if (abs_state == curr_abs_state) { 4137 msleep(20); 4138 } else 4139 break; 4140 } 4141 4142 /* 4143 * Return error if fw_state hasn't changed after max_wait 4144 */ 4145 if (curr_abs_state == abs_state) { 4146 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 4147 "in %d secs\n", fw_state, max_wait); 4148 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4149 megasas_dump_reg_set(instance->reg_set); 4150 return -ENODEV; 4151 } 4152 4153 abs_state = curr_abs_state; 4154 fw_state = curr_abs_state & MFI_STATE_MASK; 4155 } 4156 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 4157 4158 return 0; 4159 } 4160 4161 /** 4162 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 4163 * @instance: Adapter soft state 4164 */ 4165 static void megasas_teardown_frame_pool(struct megasas_instance *instance) 4166 { 4167 int i; 4168 u16 max_cmd = instance->max_mfi_cmds; 4169 struct megasas_cmd *cmd; 4170 4171 if (!instance->frame_dma_pool) 4172 return; 4173 4174 /* 4175 * Return all frames to pool 4176 */ 4177 for (i = 0; i < max_cmd; i++) { 4178 4179 cmd = instance->cmd_list[i]; 4180 4181 if (cmd->frame) 4182 dma_pool_free(instance->frame_dma_pool, cmd->frame, 4183 cmd->frame_phys_addr); 4184 4185 if (cmd->sense) 4186 dma_pool_free(instance->sense_dma_pool, cmd->sense, 4187 cmd->sense_phys_addr); 4188 } 4189 4190 /* 4191 * Now destroy the pool itself 4192 */ 4193 dma_pool_destroy(instance->frame_dma_pool); 4194 dma_pool_destroy(instance->sense_dma_pool); 4195 4196 instance->frame_dma_pool = NULL; 4197 instance->sense_dma_pool = NULL; 4198 } 4199 4200 /** 4201 * megasas_create_frame_pool - Creates DMA pool for cmd frames 4202 * @instance: Adapter soft state 4203 * 4204 * Each command packet has an embedded DMA memory buffer that is used for 4205 * filling MFI frame and the SG list that immediately follows the frame. This 4206 * function creates those DMA memory buffers for each command packet by using 4207 * PCI pool facility. 4208 */ 4209 static int megasas_create_frame_pool(struct megasas_instance *instance) 4210 { 4211 int i; 4212 u16 max_cmd; 4213 u32 frame_count; 4214 struct megasas_cmd *cmd; 4215 4216 max_cmd = instance->max_mfi_cmds; 4217 4218 /* 4219 * For MFI controllers. 4220 * max_num_sge = 60 4221 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 4222 * Total 960 byte (15 MFI frame of 64 byte) 4223 * 4224 * Fusion adapter require only 3 extra frame. 4225 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 4226 * max_sge_sz = 12 byte (sizeof megasas_sge64) 4227 * Total 192 byte (3 MFI frame of 64 byte) 4228 */ 4229 frame_count = (instance->adapter_type == MFI_SERIES) ? 4230 (15 + 1) : (3 + 1); 4231 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 4232 /* 4233 * Use DMA pool facility provided by PCI layer 4234 */ 4235 instance->frame_dma_pool = dma_pool_create("megasas frame pool", 4236 &instance->pdev->dev, 4237 instance->mfi_frame_size, 256, 0); 4238 4239 if (!instance->frame_dma_pool) { 4240 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 4241 return -ENOMEM; 4242 } 4243 4244 instance->sense_dma_pool = dma_pool_create("megasas sense pool", 4245 &instance->pdev->dev, 128, 4246 4, 0); 4247 4248 if (!instance->sense_dma_pool) { 4249 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 4250 4251 dma_pool_destroy(instance->frame_dma_pool); 4252 instance->frame_dma_pool = NULL; 4253 4254 return -ENOMEM; 4255 } 4256 4257 /* 4258 * Allocate and attach a frame to each of the commands in cmd_list. 4259 * By making cmd->index as the context instead of the &cmd, we can 4260 * always use 32bit context regardless of the architecture 4261 */ 4262 for (i = 0; i < max_cmd; i++) { 4263 4264 cmd = instance->cmd_list[i]; 4265 4266 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, 4267 GFP_KERNEL, &cmd->frame_phys_addr); 4268 4269 cmd->sense = dma_pool_alloc(instance->sense_dma_pool, 4270 GFP_KERNEL, &cmd->sense_phys_addr); 4271 4272 /* 4273 * megasas_teardown_frame_pool() takes care of freeing 4274 * whatever has been allocated 4275 */ 4276 if (!cmd->frame || !cmd->sense) { 4277 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); 4278 megasas_teardown_frame_pool(instance); 4279 return -ENOMEM; 4280 } 4281 4282 cmd->frame->io.context = cpu_to_le32(cmd->index); 4283 cmd->frame->io.pad_0 = 0; 4284 if ((instance->adapter_type == MFI_SERIES) && reset_devices) 4285 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 4286 } 4287 4288 return 0; 4289 } 4290 4291 /** 4292 * megasas_free_cmds - Free all the cmds in the free cmd pool 4293 * @instance: Adapter soft state 4294 */ 4295 void megasas_free_cmds(struct megasas_instance *instance) 4296 { 4297 int i; 4298 4299 /* First free the MFI frame pool */ 4300 megasas_teardown_frame_pool(instance); 4301 4302 /* Free all the commands in the cmd_list */ 4303 for (i = 0; i < instance->max_mfi_cmds; i++) 4304 4305 kfree(instance->cmd_list[i]); 4306 4307 /* Free the cmd_list buffer itself */ 4308 kfree(instance->cmd_list); 4309 instance->cmd_list = NULL; 4310 4311 INIT_LIST_HEAD(&instance->cmd_pool); 4312 } 4313 4314 /** 4315 * megasas_alloc_cmds - Allocates the command packets 4316 * @instance: Adapter soft state 4317 * 4318 * Each command that is issued to the FW, whether IO commands from the OS or 4319 * internal commands like IOCTLs, are wrapped in local data structure called 4320 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4321 * the FW. 4322 * 4323 * Each frame has a 32-bit field called context (tag). This context is used 4324 * to get back the megasas_cmd from the frame when a frame gets completed in 4325 * the ISR. Typically the address of the megasas_cmd itself would be used as 4326 * the context. But we wanted to keep the differences between 32 and 64 bit 4327 * systems to the mininum. We always use 32 bit integers for the context. In 4328 * this driver, the 32 bit values are the indices into an array cmd_list. 4329 * This array is used only to look up the megasas_cmd given the context. The 4330 * free commands themselves are maintained in a linked list called cmd_pool. 4331 */ 4332 int megasas_alloc_cmds(struct megasas_instance *instance) 4333 { 4334 int i; 4335 int j; 4336 u16 max_cmd; 4337 struct megasas_cmd *cmd; 4338 4339 max_cmd = instance->max_mfi_cmds; 4340 4341 /* 4342 * instance->cmd_list is an array of struct megasas_cmd pointers. 4343 * Allocate the dynamic array first and then allocate individual 4344 * commands. 4345 */ 4346 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4347 4348 if (!instance->cmd_list) { 4349 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4350 return -ENOMEM; 4351 } 4352 4353 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); 4354 4355 for (i = 0; i < max_cmd; i++) { 4356 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4357 GFP_KERNEL); 4358 4359 if (!instance->cmd_list[i]) { 4360 4361 for (j = 0; j < i; j++) 4362 kfree(instance->cmd_list[j]); 4363 4364 kfree(instance->cmd_list); 4365 instance->cmd_list = NULL; 4366 4367 return -ENOMEM; 4368 } 4369 } 4370 4371 for (i = 0; i < max_cmd; i++) { 4372 cmd = instance->cmd_list[i]; 4373 memset(cmd, 0, sizeof(struct megasas_cmd)); 4374 cmd->index = i; 4375 cmd->scmd = NULL; 4376 cmd->instance = instance; 4377 4378 list_add_tail(&cmd->list, &instance->cmd_pool); 4379 } 4380 4381 /* 4382 * Create a frame pool and assign one frame to each cmd 4383 */ 4384 if (megasas_create_frame_pool(instance)) { 4385 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4386 megasas_free_cmds(instance); 4387 return -ENOMEM; 4388 } 4389 4390 return 0; 4391 } 4392 4393 /* 4394 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4395 * @instance: Adapter soft state 4396 * 4397 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4398 * or FW is not under OCR. 4399 */ 4400 inline int 4401 dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4402 4403 if (instance->adapter_type == MFI_SERIES) 4404 return KILL_ADAPTER; 4405 else if (instance->unload || 4406 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, 4407 &instance->reset_flags)) 4408 return IGNORE_TIMEOUT; 4409 else 4410 return INITIATE_OCR; 4411 } 4412 4413 static void 4414 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4415 { 4416 int ret; 4417 struct megasas_cmd *cmd; 4418 struct megasas_dcmd_frame *dcmd; 4419 4420 struct MR_PRIV_DEVICE *mr_device_priv_data; 4421 u16 device_id = 0; 4422 4423 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4424 cmd = megasas_get_cmd(instance); 4425 4426 if (!cmd) { 4427 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4428 return; 4429 } 4430 4431 dcmd = &cmd->frame->dcmd; 4432 4433 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4434 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4435 4436 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4437 dcmd->cmd = MFI_CMD_DCMD; 4438 dcmd->cmd_status = 0xFF; 4439 dcmd->sge_count = 1; 4440 dcmd->flags = MFI_FRAME_DIR_READ; 4441 dcmd->timeout = 0; 4442 dcmd->pad_0 = 0; 4443 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4444 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4445 4446 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, 4447 sizeof(struct MR_PD_INFO)); 4448 4449 if ((instance->adapter_type != MFI_SERIES) && 4450 !instance->mask_interrupts) 4451 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4452 else 4453 ret = megasas_issue_polled(instance, cmd); 4454 4455 switch (ret) { 4456 case DCMD_SUCCESS: 4457 mr_device_priv_data = sdev->hostdata; 4458 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4459 mr_device_priv_data->interface_type = 4460 instance->pd_info->state.ddf.pdType.intf; 4461 break; 4462 4463 case DCMD_TIMEOUT: 4464 4465 switch (dcmd_timeout_ocr_possible(instance)) { 4466 case INITIATE_OCR: 4467 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4468 mutex_unlock(&instance->reset_mutex); 4469 megasas_reset_fusion(instance->host, 4470 MFI_IO_TIMEOUT_OCR); 4471 mutex_lock(&instance->reset_mutex); 4472 break; 4473 case KILL_ADAPTER: 4474 megaraid_sas_kill_hba(instance); 4475 break; 4476 case IGNORE_TIMEOUT: 4477 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4478 __func__, __LINE__); 4479 break; 4480 } 4481 4482 break; 4483 } 4484 4485 if (ret != DCMD_TIMEOUT) 4486 megasas_return_cmd(instance, cmd); 4487 4488 return; 4489 } 4490 /* 4491 * megasas_get_pd_list_info - Returns FW's pd_list structure 4492 * @instance: Adapter soft state 4493 * @pd_list: pd_list structure 4494 * 4495 * Issues an internal command (DCMD) to get the FW's controller PD 4496 * list structure. This information is mainly used to find out SYSTEM 4497 * supported by the FW. 4498 */ 4499 static int 4500 megasas_get_pd_list(struct megasas_instance *instance) 4501 { 4502 int ret = 0, pd_index = 0; 4503 struct megasas_cmd *cmd; 4504 struct megasas_dcmd_frame *dcmd; 4505 struct MR_PD_LIST *ci; 4506 struct MR_PD_ADDRESS *pd_addr; 4507 4508 if (instance->pd_list_not_supported) { 4509 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4510 "not supported by firmware\n"); 4511 return ret; 4512 } 4513 4514 ci = instance->pd_list_buf; 4515 4516 cmd = megasas_get_cmd(instance); 4517 4518 if (!cmd) { 4519 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4520 return -ENOMEM; 4521 } 4522 4523 dcmd = &cmd->frame->dcmd; 4524 4525 memset(ci, 0, sizeof(*ci)); 4526 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4527 4528 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4529 dcmd->mbox.b[1] = 0; 4530 dcmd->cmd = MFI_CMD_DCMD; 4531 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4532 dcmd->sge_count = 1; 4533 dcmd->flags = MFI_FRAME_DIR_READ; 4534 dcmd->timeout = 0; 4535 dcmd->pad_0 = 0; 4536 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4537 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4538 4539 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, 4540 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); 4541 4542 if ((instance->adapter_type != MFI_SERIES) && 4543 !instance->mask_interrupts) 4544 ret = megasas_issue_blocked_cmd(instance, cmd, 4545 MFI_IO_TIMEOUT_SECS); 4546 else 4547 ret = megasas_issue_polled(instance, cmd); 4548 4549 switch (ret) { 4550 case DCMD_FAILED: 4551 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4552 "failed/not supported by firmware\n"); 4553 4554 if (instance->adapter_type != MFI_SERIES) 4555 megaraid_sas_kill_hba(instance); 4556 else 4557 instance->pd_list_not_supported = 1; 4558 break; 4559 case DCMD_TIMEOUT: 4560 4561 switch (dcmd_timeout_ocr_possible(instance)) { 4562 case INITIATE_OCR: 4563 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4564 /* 4565 * DCMD failed from AEN path. 4566 * AEN path already hold reset_mutex to avoid PCI access 4567 * while OCR is in progress. 4568 */ 4569 mutex_unlock(&instance->reset_mutex); 4570 megasas_reset_fusion(instance->host, 4571 MFI_IO_TIMEOUT_OCR); 4572 mutex_lock(&instance->reset_mutex); 4573 break; 4574 case KILL_ADAPTER: 4575 megaraid_sas_kill_hba(instance); 4576 break; 4577 case IGNORE_TIMEOUT: 4578 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4579 __func__, __LINE__); 4580 break; 4581 } 4582 4583 break; 4584 4585 case DCMD_SUCCESS: 4586 pd_addr = ci->addr; 4587 if (megasas_dbg_lvl & LD_PD_DEBUG) 4588 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", 4589 __func__, le32_to_cpu(ci->count)); 4590 4591 if ((le32_to_cpu(ci->count) > 4592 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4593 break; 4594 4595 memset(instance->local_pd_list, 0, 4596 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4597 4598 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4599 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4600 le16_to_cpu(pd_addr->deviceId); 4601 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4602 pd_addr->scsiDevType; 4603 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4604 MR_PD_STATE_SYSTEM; 4605 if (megasas_dbg_lvl & LD_PD_DEBUG) 4606 dev_info(&instance->pdev->dev, 4607 "PD%d: targetID: 0x%03x deviceType:0x%x\n", 4608 pd_index, le16_to_cpu(pd_addr->deviceId), 4609 pd_addr->scsiDevType); 4610 pd_addr++; 4611 } 4612 4613 memcpy(instance->pd_list, instance->local_pd_list, 4614 sizeof(instance->pd_list)); 4615 break; 4616 4617 } 4618 4619 if (ret != DCMD_TIMEOUT) 4620 megasas_return_cmd(instance, cmd); 4621 4622 return ret; 4623 } 4624 4625 /* 4626 * megasas_get_ld_list_info - Returns FW's ld_list structure 4627 * @instance: Adapter soft state 4628 * @ld_list: ld_list structure 4629 * 4630 * Issues an internal command (DCMD) to get the FW's controller PD 4631 * list structure. This information is mainly used to find out SYSTEM 4632 * supported by the FW. 4633 */ 4634 static int 4635 megasas_get_ld_list(struct megasas_instance *instance) 4636 { 4637 int ret = 0, ld_index = 0, ids = 0; 4638 struct megasas_cmd *cmd; 4639 struct megasas_dcmd_frame *dcmd; 4640 struct MR_LD_LIST *ci; 4641 dma_addr_t ci_h = 0; 4642 u32 ld_count; 4643 4644 ci = instance->ld_list_buf; 4645 ci_h = instance->ld_list_buf_h; 4646 4647 cmd = megasas_get_cmd(instance); 4648 4649 if (!cmd) { 4650 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4651 return -ENOMEM; 4652 } 4653 4654 dcmd = &cmd->frame->dcmd; 4655 4656 memset(ci, 0, sizeof(*ci)); 4657 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4658 4659 if (instance->supportmax256vd) 4660 dcmd->mbox.b[0] = 1; 4661 dcmd->cmd = MFI_CMD_DCMD; 4662 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4663 dcmd->sge_count = 1; 4664 dcmd->flags = MFI_FRAME_DIR_READ; 4665 dcmd->timeout = 0; 4666 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4667 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4668 dcmd->pad_0 = 0; 4669 4670 megasas_set_dma_settings(instance, dcmd, ci_h, 4671 sizeof(struct MR_LD_LIST)); 4672 4673 if ((instance->adapter_type != MFI_SERIES) && 4674 !instance->mask_interrupts) 4675 ret = megasas_issue_blocked_cmd(instance, cmd, 4676 MFI_IO_TIMEOUT_SECS); 4677 else 4678 ret = megasas_issue_polled(instance, cmd); 4679 4680 ld_count = le32_to_cpu(ci->ldCount); 4681 4682 switch (ret) { 4683 case DCMD_FAILED: 4684 megaraid_sas_kill_hba(instance); 4685 break; 4686 case DCMD_TIMEOUT: 4687 4688 switch (dcmd_timeout_ocr_possible(instance)) { 4689 case INITIATE_OCR: 4690 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4691 /* 4692 * DCMD failed from AEN path. 4693 * AEN path already hold reset_mutex to avoid PCI access 4694 * while OCR is in progress. 4695 */ 4696 mutex_unlock(&instance->reset_mutex); 4697 megasas_reset_fusion(instance->host, 4698 MFI_IO_TIMEOUT_OCR); 4699 mutex_lock(&instance->reset_mutex); 4700 break; 4701 case KILL_ADAPTER: 4702 megaraid_sas_kill_hba(instance); 4703 break; 4704 case IGNORE_TIMEOUT: 4705 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4706 __func__, __LINE__); 4707 break; 4708 } 4709 4710 break; 4711 4712 case DCMD_SUCCESS: 4713 if (megasas_dbg_lvl & LD_PD_DEBUG) 4714 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4715 __func__, ld_count); 4716 4717 if (ld_count > instance->fw_supported_vd_count) 4718 break; 4719 4720 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4721 4722 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4723 if (ci->ldList[ld_index].state != 0) { 4724 ids = ci->ldList[ld_index].ref.targetId; 4725 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4726 if (megasas_dbg_lvl & LD_PD_DEBUG) 4727 dev_info(&instance->pdev->dev, 4728 "LD%d: targetID: 0x%03x\n", 4729 ld_index, ids); 4730 } 4731 } 4732 4733 break; 4734 } 4735 4736 if (ret != DCMD_TIMEOUT) 4737 megasas_return_cmd(instance, cmd); 4738 4739 return ret; 4740 } 4741 4742 /** 4743 * megasas_ld_list_query - Returns FW's ld_list structure 4744 * @instance: Adapter soft state 4745 * @ld_list: ld_list structure 4746 * 4747 * Issues an internal command (DCMD) to get the FW's controller PD 4748 * list structure. This information is mainly used to find out SYSTEM 4749 * supported by the FW. 4750 */ 4751 static int 4752 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4753 { 4754 int ret = 0, ld_index = 0, ids = 0; 4755 struct megasas_cmd *cmd; 4756 struct megasas_dcmd_frame *dcmd; 4757 struct MR_LD_TARGETID_LIST *ci; 4758 dma_addr_t ci_h = 0; 4759 u32 tgtid_count; 4760 4761 ci = instance->ld_targetid_list_buf; 4762 ci_h = instance->ld_targetid_list_buf_h; 4763 4764 cmd = megasas_get_cmd(instance); 4765 4766 if (!cmd) { 4767 dev_warn(&instance->pdev->dev, 4768 "megasas_ld_list_query: Failed to get cmd\n"); 4769 return -ENOMEM; 4770 } 4771 4772 dcmd = &cmd->frame->dcmd; 4773 4774 memset(ci, 0, sizeof(*ci)); 4775 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4776 4777 dcmd->mbox.b[0] = query_type; 4778 if (instance->supportmax256vd) 4779 dcmd->mbox.b[2] = 1; 4780 4781 dcmd->cmd = MFI_CMD_DCMD; 4782 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4783 dcmd->sge_count = 1; 4784 dcmd->flags = MFI_FRAME_DIR_READ; 4785 dcmd->timeout = 0; 4786 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4787 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4788 dcmd->pad_0 = 0; 4789 4790 megasas_set_dma_settings(instance, dcmd, ci_h, 4791 sizeof(struct MR_LD_TARGETID_LIST)); 4792 4793 if ((instance->adapter_type != MFI_SERIES) && 4794 !instance->mask_interrupts) 4795 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4796 else 4797 ret = megasas_issue_polled(instance, cmd); 4798 4799 switch (ret) { 4800 case DCMD_FAILED: 4801 dev_info(&instance->pdev->dev, 4802 "DCMD not supported by firmware - %s %d\n", 4803 __func__, __LINE__); 4804 ret = megasas_get_ld_list(instance); 4805 break; 4806 case DCMD_TIMEOUT: 4807 switch (dcmd_timeout_ocr_possible(instance)) { 4808 case INITIATE_OCR: 4809 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4810 /* 4811 * DCMD failed from AEN path. 4812 * AEN path already hold reset_mutex to avoid PCI access 4813 * while OCR is in progress. 4814 */ 4815 mutex_unlock(&instance->reset_mutex); 4816 megasas_reset_fusion(instance->host, 4817 MFI_IO_TIMEOUT_OCR); 4818 mutex_lock(&instance->reset_mutex); 4819 break; 4820 case KILL_ADAPTER: 4821 megaraid_sas_kill_hba(instance); 4822 break; 4823 case IGNORE_TIMEOUT: 4824 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4825 __func__, __LINE__); 4826 break; 4827 } 4828 4829 break; 4830 case DCMD_SUCCESS: 4831 tgtid_count = le32_to_cpu(ci->count); 4832 4833 if (megasas_dbg_lvl & LD_PD_DEBUG) 4834 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4835 __func__, tgtid_count); 4836 4837 if ((tgtid_count > (instance->fw_supported_vd_count))) 4838 break; 4839 4840 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4841 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4842 ids = ci->targetId[ld_index]; 4843 instance->ld_ids[ids] = ci->targetId[ld_index]; 4844 if (megasas_dbg_lvl & LD_PD_DEBUG) 4845 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", 4846 ld_index, ci->targetId[ld_index]); 4847 } 4848 4849 break; 4850 } 4851 4852 if (ret != DCMD_TIMEOUT) 4853 megasas_return_cmd(instance, cmd); 4854 4855 return ret; 4856 } 4857 4858 /** 4859 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET 4860 * dcmd.mbox - reserved 4861 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure 4862 * Desc: This DCMD will return the combined device list 4863 * Status: MFI_STAT_OK - List returned successfully 4864 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been 4865 * disabled 4866 * @instance: Adapter soft state 4867 * @is_probe: Driver probe check 4868 * Return: 0 if DCMD succeeded 4869 * non-zero if failed 4870 */ 4871 static int 4872 megasas_host_device_list_query(struct megasas_instance *instance, 4873 bool is_probe) 4874 { 4875 int ret, i, target_id; 4876 struct megasas_cmd *cmd; 4877 struct megasas_dcmd_frame *dcmd; 4878 struct MR_HOST_DEVICE_LIST *ci; 4879 u32 count; 4880 dma_addr_t ci_h; 4881 4882 ci = instance->host_device_list_buf; 4883 ci_h = instance->host_device_list_buf_h; 4884 4885 cmd = megasas_get_cmd(instance); 4886 4887 if (!cmd) { 4888 dev_warn(&instance->pdev->dev, 4889 "%s: failed to get cmd\n", 4890 __func__); 4891 return -ENOMEM; 4892 } 4893 4894 dcmd = &cmd->frame->dcmd; 4895 4896 memset(ci, 0, sizeof(*ci)); 4897 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4898 4899 dcmd->mbox.b[0] = is_probe ? 0 : 1; 4900 dcmd->cmd = MFI_CMD_DCMD; 4901 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4902 dcmd->sge_count = 1; 4903 dcmd->flags = MFI_FRAME_DIR_READ; 4904 dcmd->timeout = 0; 4905 dcmd->pad_0 = 0; 4906 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); 4907 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); 4908 4909 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); 4910 4911 if (!instance->mask_interrupts) { 4912 ret = megasas_issue_blocked_cmd(instance, cmd, 4913 MFI_IO_TIMEOUT_SECS); 4914 } else { 4915 ret = megasas_issue_polled(instance, cmd); 4916 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4917 } 4918 4919 switch (ret) { 4920 case DCMD_SUCCESS: 4921 /* Fill the internal pd_list and ld_ids array based on 4922 * targetIds returned by FW 4923 */ 4924 count = le32_to_cpu(ci->count); 4925 4926 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) 4927 break; 4928 4929 if (megasas_dbg_lvl & LD_PD_DEBUG) 4930 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", 4931 __func__, count); 4932 4933 memset(instance->local_pd_list, 0, 4934 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4935 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4936 for (i = 0; i < count; i++) { 4937 target_id = le16_to_cpu(ci->host_device_list[i].target_id); 4938 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { 4939 instance->local_pd_list[target_id].tid = target_id; 4940 instance->local_pd_list[target_id].driveType = 4941 ci->host_device_list[i].scsi_type; 4942 instance->local_pd_list[target_id].driveState = 4943 MR_PD_STATE_SYSTEM; 4944 if (megasas_dbg_lvl & LD_PD_DEBUG) 4945 dev_info(&instance->pdev->dev, 4946 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", 4947 i, target_id, ci->host_device_list[i].scsi_type); 4948 } else { 4949 instance->ld_ids[target_id] = target_id; 4950 if (megasas_dbg_lvl & LD_PD_DEBUG) 4951 dev_info(&instance->pdev->dev, 4952 "Device %d: LD targetID: 0x%03x\n", 4953 i, target_id); 4954 } 4955 } 4956 4957 memcpy(instance->pd_list, instance->local_pd_list, 4958 sizeof(instance->pd_list)); 4959 break; 4960 4961 case DCMD_TIMEOUT: 4962 switch (dcmd_timeout_ocr_possible(instance)) { 4963 case INITIATE_OCR: 4964 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4965 mutex_unlock(&instance->reset_mutex); 4966 megasas_reset_fusion(instance->host, 4967 MFI_IO_TIMEOUT_OCR); 4968 mutex_lock(&instance->reset_mutex); 4969 break; 4970 case KILL_ADAPTER: 4971 megaraid_sas_kill_hba(instance); 4972 break; 4973 case IGNORE_TIMEOUT: 4974 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4975 __func__, __LINE__); 4976 break; 4977 } 4978 break; 4979 case DCMD_FAILED: 4980 dev_err(&instance->pdev->dev, 4981 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", 4982 __func__); 4983 break; 4984 } 4985 4986 if (ret != DCMD_TIMEOUT) 4987 megasas_return_cmd(instance, cmd); 4988 4989 return ret; 4990 } 4991 4992 /* 4993 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 4994 * instance : Controller's instance 4995 */ 4996 static void megasas_update_ext_vd_details(struct megasas_instance *instance) 4997 { 4998 struct fusion_context *fusion; 4999 u32 ventura_map_sz = 0; 5000 5001 fusion = instance->ctrl_context; 5002 /* For MFI based controllers return dummy success */ 5003 if (!fusion) 5004 return; 5005 5006 instance->supportmax256vd = 5007 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; 5008 /* Below is additional check to address future FW enhancement */ 5009 if (instance->ctrl_info_buf->max_lds > 64) 5010 instance->supportmax256vd = 1; 5011 5012 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 5013 * MEGASAS_MAX_DEV_PER_CHANNEL; 5014 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 5015 * MEGASAS_MAX_DEV_PER_CHANNEL; 5016 if (instance->supportmax256vd) { 5017 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 5018 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5019 } else { 5020 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5021 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5022 } 5023 5024 dev_info(&instance->pdev->dev, 5025 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", 5026 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, 5027 instance->ctrl_info_buf->max_lds); 5028 5029 if (instance->max_raid_mapsize) { 5030 ventura_map_sz = instance->max_raid_mapsize * 5031 MR_MIN_MAP_SIZE; /* 64k */ 5032 fusion->current_map_sz = ventura_map_sz; 5033 fusion->max_map_sz = ventura_map_sz; 5034 } else { 5035 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + 5036 (sizeof(struct MR_LD_SPAN_MAP) * 5037 (instance->fw_supported_vd_count - 1)); 5038 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 5039 5040 fusion->max_map_sz = 5041 max(fusion->old_map_sz, fusion->new_map_sz); 5042 5043 if (instance->supportmax256vd) 5044 fusion->current_map_sz = fusion->new_map_sz; 5045 else 5046 fusion->current_map_sz = fusion->old_map_sz; 5047 } 5048 /* irrespective of FW raid maps, driver raid map is constant */ 5049 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 5050 } 5051 5052 /* 5053 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 5054 * dcmd.hdr.length - number of bytes to read 5055 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES 5056 * Desc: Fill in snapdump properties 5057 * Status: MFI_STAT_OK- Command successful 5058 */ 5059 void megasas_get_snapdump_properties(struct megasas_instance *instance) 5060 { 5061 int ret = 0; 5062 struct megasas_cmd *cmd; 5063 struct megasas_dcmd_frame *dcmd; 5064 struct MR_SNAPDUMP_PROPERTIES *ci; 5065 dma_addr_t ci_h = 0; 5066 5067 ci = instance->snapdump_prop; 5068 ci_h = instance->snapdump_prop_h; 5069 5070 if (!ci) 5071 return; 5072 5073 cmd = megasas_get_cmd(instance); 5074 5075 if (!cmd) { 5076 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); 5077 return; 5078 } 5079 5080 dcmd = &cmd->frame->dcmd; 5081 5082 memset(ci, 0, sizeof(*ci)); 5083 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5084 5085 dcmd->cmd = MFI_CMD_DCMD; 5086 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5087 dcmd->sge_count = 1; 5088 dcmd->flags = MFI_FRAME_DIR_READ; 5089 dcmd->timeout = 0; 5090 dcmd->pad_0 = 0; 5091 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5092 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); 5093 5094 megasas_set_dma_settings(instance, dcmd, ci_h, 5095 sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5096 5097 if (!instance->mask_interrupts) { 5098 ret = megasas_issue_blocked_cmd(instance, cmd, 5099 MFI_IO_TIMEOUT_SECS); 5100 } else { 5101 ret = megasas_issue_polled(instance, cmd); 5102 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5103 } 5104 5105 switch (ret) { 5106 case DCMD_SUCCESS: 5107 instance->snapdump_wait_time = 5108 min_t(u8, ci->trigger_min_num_sec_before_ocr, 5109 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); 5110 break; 5111 5112 case DCMD_TIMEOUT: 5113 switch (dcmd_timeout_ocr_possible(instance)) { 5114 case INITIATE_OCR: 5115 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5116 mutex_unlock(&instance->reset_mutex); 5117 megasas_reset_fusion(instance->host, 5118 MFI_IO_TIMEOUT_OCR); 5119 mutex_lock(&instance->reset_mutex); 5120 break; 5121 case KILL_ADAPTER: 5122 megaraid_sas_kill_hba(instance); 5123 break; 5124 case IGNORE_TIMEOUT: 5125 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5126 __func__, __LINE__); 5127 break; 5128 } 5129 } 5130 5131 if (ret != DCMD_TIMEOUT) 5132 megasas_return_cmd(instance, cmd); 5133 } 5134 5135 /** 5136 * megasas_get_controller_info - Returns FW's controller structure 5137 * @instance: Adapter soft state 5138 * 5139 * Issues an internal command (DCMD) to get the FW's controller structure. 5140 * This information is mainly used to find out the maximum IO transfer per 5141 * command supported by the FW. 5142 */ 5143 int 5144 megasas_get_ctrl_info(struct megasas_instance *instance) 5145 { 5146 int ret = 0; 5147 struct megasas_cmd *cmd; 5148 struct megasas_dcmd_frame *dcmd; 5149 struct megasas_ctrl_info *ci; 5150 dma_addr_t ci_h = 0; 5151 5152 ci = instance->ctrl_info_buf; 5153 ci_h = instance->ctrl_info_buf_h; 5154 5155 cmd = megasas_get_cmd(instance); 5156 5157 if (!cmd) { 5158 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 5159 return -ENOMEM; 5160 } 5161 5162 dcmd = &cmd->frame->dcmd; 5163 5164 memset(ci, 0, sizeof(*ci)); 5165 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5166 5167 dcmd->cmd = MFI_CMD_DCMD; 5168 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5169 dcmd->sge_count = 1; 5170 dcmd->flags = MFI_FRAME_DIR_READ; 5171 dcmd->timeout = 0; 5172 dcmd->pad_0 = 0; 5173 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 5174 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 5175 dcmd->mbox.b[0] = 1; 5176 5177 megasas_set_dma_settings(instance, dcmd, ci_h, 5178 sizeof(struct megasas_ctrl_info)); 5179 5180 if ((instance->adapter_type != MFI_SERIES) && 5181 !instance->mask_interrupts) { 5182 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5183 } else { 5184 ret = megasas_issue_polled(instance, cmd); 5185 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5186 } 5187 5188 switch (ret) { 5189 case DCMD_SUCCESS: 5190 /* Save required controller information in 5191 * CPU endianness format. 5192 */ 5193 le32_to_cpus((u32 *)&ci->properties.OnOffProperties); 5194 le16_to_cpus((u16 *)&ci->properties.on_off_properties2); 5195 le32_to_cpus((u32 *)&ci->adapterOperations2); 5196 le32_to_cpus((u32 *)&ci->adapterOperations3); 5197 le16_to_cpus((u16 *)&ci->adapter_operations4); 5198 le32_to_cpus((u32 *)&ci->adapter_operations5); 5199 5200 /* Update the latest Ext VD info. 5201 * From Init path, store current firmware details. 5202 * From OCR path, detect any firmware properties changes. 5203 * in case of Firmware upgrade without system reboot. 5204 */ 5205 megasas_update_ext_vd_details(instance); 5206 instance->support_seqnum_jbod_fp = 5207 ci->adapterOperations3.useSeqNumJbodFP; 5208 instance->support_morethan256jbod = 5209 ci->adapter_operations4.support_pd_map_target_id; 5210 instance->support_nvme_passthru = 5211 ci->adapter_operations4.support_nvme_passthru; 5212 instance->support_pci_lane_margining = 5213 ci->adapter_operations5.support_pci_lane_margining; 5214 instance->task_abort_tmo = ci->TaskAbortTO; 5215 instance->max_reset_tmo = ci->MaxResetTO; 5216 5217 /*Check whether controller is iMR or MR */ 5218 instance->is_imr = (ci->memory_size ? 0 : 1); 5219 5220 instance->snapdump_wait_time = 5221 (ci->properties.on_off_properties2.enable_snap_dump ? 5222 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); 5223 5224 instance->enable_fw_dev_list = 5225 ci->properties.on_off_properties2.enable_fw_dev_list; 5226 5227 dev_info(&instance->pdev->dev, 5228 "controller type\t: %s(%dMB)\n", 5229 instance->is_imr ? "iMR" : "MR", 5230 le16_to_cpu(ci->memory_size)); 5231 5232 instance->disableOnlineCtrlReset = 5233 ci->properties.OnOffProperties.disableOnlineCtrlReset; 5234 instance->secure_jbod_support = 5235 ci->adapterOperations3.supportSecurityonJBOD; 5236 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 5237 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 5238 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 5239 instance->secure_jbod_support ? "Yes" : "No"); 5240 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", 5241 instance->support_nvme_passthru ? "Yes" : "No"); 5242 dev_info(&instance->pdev->dev, 5243 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", 5244 instance->task_abort_tmo, instance->max_reset_tmo); 5245 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", 5246 instance->support_seqnum_jbod_fp ? "Yes" : "No"); 5247 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", 5248 instance->support_pci_lane_margining ? "Yes" : "No"); 5249 5250 break; 5251 5252 case DCMD_TIMEOUT: 5253 switch (dcmd_timeout_ocr_possible(instance)) { 5254 case INITIATE_OCR: 5255 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5256 mutex_unlock(&instance->reset_mutex); 5257 megasas_reset_fusion(instance->host, 5258 MFI_IO_TIMEOUT_OCR); 5259 mutex_lock(&instance->reset_mutex); 5260 break; 5261 case KILL_ADAPTER: 5262 megaraid_sas_kill_hba(instance); 5263 break; 5264 case IGNORE_TIMEOUT: 5265 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5266 __func__, __LINE__); 5267 break; 5268 } 5269 break; 5270 case DCMD_FAILED: 5271 megaraid_sas_kill_hba(instance); 5272 break; 5273 5274 } 5275 5276 if (ret != DCMD_TIMEOUT) 5277 megasas_return_cmd(instance, cmd); 5278 5279 return ret; 5280 } 5281 5282 /* 5283 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 5284 * to firmware 5285 * 5286 * @instance: Adapter soft state 5287 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 5288 MR_CRASH_BUF_TURN_OFF = 0 5289 MR_CRASH_BUF_TURN_ON = 1 5290 * @return 0 on success non-zero on failure. 5291 * Issues an internal command (DCMD) to set parameters for crash dump feature. 5292 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 5293 * that driver supports crash dump feature. This DCMD will be sent only if 5294 * crash dump feature is supported by the FW. 5295 * 5296 */ 5297 int megasas_set_crash_dump_params(struct megasas_instance *instance, 5298 u8 crash_buf_state) 5299 { 5300 int ret = 0; 5301 struct megasas_cmd *cmd; 5302 struct megasas_dcmd_frame *dcmd; 5303 5304 cmd = megasas_get_cmd(instance); 5305 5306 if (!cmd) { 5307 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 5308 return -ENOMEM; 5309 } 5310 5311 5312 dcmd = &cmd->frame->dcmd; 5313 5314 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5315 dcmd->mbox.b[0] = crash_buf_state; 5316 dcmd->cmd = MFI_CMD_DCMD; 5317 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5318 dcmd->sge_count = 1; 5319 dcmd->flags = MFI_FRAME_DIR_NONE; 5320 dcmd->timeout = 0; 5321 dcmd->pad_0 = 0; 5322 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 5323 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 5324 5325 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, 5326 CRASH_DMA_BUF_SIZE); 5327 5328 if ((instance->adapter_type != MFI_SERIES) && 5329 !instance->mask_interrupts) 5330 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5331 else 5332 ret = megasas_issue_polled(instance, cmd); 5333 5334 if (ret == DCMD_TIMEOUT) { 5335 switch (dcmd_timeout_ocr_possible(instance)) { 5336 case INITIATE_OCR: 5337 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5338 megasas_reset_fusion(instance->host, 5339 MFI_IO_TIMEOUT_OCR); 5340 break; 5341 case KILL_ADAPTER: 5342 megaraid_sas_kill_hba(instance); 5343 break; 5344 case IGNORE_TIMEOUT: 5345 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5346 __func__, __LINE__); 5347 break; 5348 } 5349 } else 5350 megasas_return_cmd(instance, cmd); 5351 5352 return ret; 5353 } 5354 5355 /** 5356 * megasas_issue_init_mfi - Initializes the FW 5357 * @instance: Adapter soft state 5358 * 5359 * Issues the INIT MFI cmd 5360 */ 5361 static int 5362 megasas_issue_init_mfi(struct megasas_instance *instance) 5363 { 5364 __le32 context; 5365 struct megasas_cmd *cmd; 5366 struct megasas_init_frame *init_frame; 5367 struct megasas_init_queue_info *initq_info; 5368 dma_addr_t init_frame_h; 5369 dma_addr_t initq_info_h; 5370 5371 /* 5372 * Prepare a init frame. Note the init frame points to queue info 5373 * structure. Each frame has SGL allocated after first 64 bytes. For 5374 * this frame - since we don't need any SGL - we use SGL's space as 5375 * queue info structure 5376 * 5377 * We will not get a NULL command below. We just created the pool. 5378 */ 5379 cmd = megasas_get_cmd(instance); 5380 5381 init_frame = (struct megasas_init_frame *)cmd->frame; 5382 initq_info = (struct megasas_init_queue_info *) 5383 ((unsigned long)init_frame + 64); 5384 5385 init_frame_h = cmd->frame_phys_addr; 5386 initq_info_h = init_frame_h + 64; 5387 5388 context = init_frame->context; 5389 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 5390 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 5391 init_frame->context = context; 5392 5393 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 5394 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 5395 5396 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 5397 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 5398 5399 init_frame->cmd = MFI_CMD_INIT; 5400 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 5401 init_frame->queue_info_new_phys_addr_lo = 5402 cpu_to_le32(lower_32_bits(initq_info_h)); 5403 init_frame->queue_info_new_phys_addr_hi = 5404 cpu_to_le32(upper_32_bits(initq_info_h)); 5405 5406 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 5407 5408 /* 5409 * disable the intr before firing the init frame to FW 5410 */ 5411 instance->instancet->disable_intr(instance); 5412 5413 /* 5414 * Issue the init frame in polled mode 5415 */ 5416 5417 if (megasas_issue_polled(instance, cmd)) { 5418 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 5419 megasas_return_cmd(instance, cmd); 5420 goto fail_fw_init; 5421 } 5422 5423 megasas_return_cmd(instance, cmd); 5424 5425 return 0; 5426 5427 fail_fw_init: 5428 return -EINVAL; 5429 } 5430 5431 static u32 5432 megasas_init_adapter_mfi(struct megasas_instance *instance) 5433 { 5434 u32 context_sz; 5435 u32 reply_q_sz; 5436 5437 /* 5438 * Get various operational parameters from status register 5439 */ 5440 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; 5441 /* 5442 * Reduce the max supported cmds by 1. This is to ensure that the 5443 * reply_q_sz (1 more than the max cmd that driver may send) 5444 * does not exceed max cmds that the FW can support 5445 */ 5446 instance->max_fw_cmds = instance->max_fw_cmds-1; 5447 instance->max_mfi_cmds = instance->max_fw_cmds; 5448 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> 5449 0x10; 5450 /* 5451 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 5452 * are reserved for IOCTL + driver's internal DCMDs. 5453 */ 5454 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 5455 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 5456 instance->max_scsi_cmds = (instance->max_fw_cmds - 5457 MEGASAS_SKINNY_INT_CMDS); 5458 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 5459 } else { 5460 instance->max_scsi_cmds = (instance->max_fw_cmds - 5461 MEGASAS_INT_CMDS); 5462 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 5463 } 5464 5465 instance->cur_can_queue = instance->max_scsi_cmds; 5466 /* 5467 * Create a pool of commands 5468 */ 5469 if (megasas_alloc_cmds(instance)) 5470 goto fail_alloc_cmds; 5471 5472 /* 5473 * Allocate memory for reply queue. Length of reply queue should 5474 * be _one_ more than the maximum commands handled by the firmware. 5475 * 5476 * Note: When FW completes commands, it places corresponding contex 5477 * values in this circular reply queue. This circular queue is a fairly 5478 * typical producer-consumer queue. FW is the producer (of completed 5479 * commands) and the driver is the consumer. 5480 */ 5481 context_sz = sizeof(u32); 5482 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 5483 5484 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, 5485 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); 5486 5487 if (!instance->reply_queue) { 5488 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 5489 goto fail_reply_queue; 5490 } 5491 5492 if (megasas_issue_init_mfi(instance)) 5493 goto fail_fw_init; 5494 5495 if (megasas_get_ctrl_info(instance)) { 5496 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 5497 "Fail from %s %d\n", instance->unique_id, 5498 __func__, __LINE__); 5499 goto fail_fw_init; 5500 } 5501 5502 instance->fw_support_ieee = 0; 5503 instance->fw_support_ieee = 5504 (instance->instancet->read_fw_status_reg(instance) & 5505 0x04000000); 5506 5507 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 5508 instance->fw_support_ieee); 5509 5510 if (instance->fw_support_ieee) 5511 instance->flag_ieee = 1; 5512 5513 return 0; 5514 5515 fail_fw_init: 5516 5517 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 5518 instance->reply_queue, instance->reply_queue_h); 5519 fail_reply_queue: 5520 megasas_free_cmds(instance); 5521 5522 fail_alloc_cmds: 5523 return 1; 5524 } 5525 5526 static 5527 void megasas_setup_irq_poll(struct megasas_instance *instance) 5528 { 5529 struct megasas_irq_context *irq_ctx; 5530 u32 count, i; 5531 5532 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5533 5534 /* Initialize IRQ poll */ 5535 for (i = 0; i < count; i++) { 5536 irq_ctx = &instance->irq_context[i]; 5537 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); 5538 irq_ctx->irq_poll_scheduled = false; 5539 irq_poll_init(&irq_ctx->irqpoll, 5540 instance->threshold_reply_count, 5541 megasas_irqpoll); 5542 } 5543 } 5544 5545 /* 5546 * megasas_setup_irqs_ioapic - register legacy interrupts. 5547 * @instance: Adapter soft state 5548 * 5549 * Do not enable interrupt, only setup ISRs. 5550 * 5551 * Return 0 on success. 5552 */ 5553 static int 5554 megasas_setup_irqs_ioapic(struct megasas_instance *instance) 5555 { 5556 struct pci_dev *pdev; 5557 5558 pdev = instance->pdev; 5559 instance->irq_context[0].instance = instance; 5560 instance->irq_context[0].MSIxIndex = 0; 5561 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u", 5562 "megasas", instance->host->host_no); 5563 if (request_irq(pci_irq_vector(pdev, 0), 5564 instance->instancet->service_isr, IRQF_SHARED, 5565 instance->irq_context->name, &instance->irq_context[0])) { 5566 dev_err(&instance->pdev->dev, 5567 "Failed to register IRQ from %s %d\n", 5568 __func__, __LINE__); 5569 return -1; 5570 } 5571 instance->perf_mode = MR_LATENCY_PERF_MODE; 5572 instance->low_latency_index_start = 0; 5573 return 0; 5574 } 5575 5576 /** 5577 * megasas_setup_irqs_msix - register MSI-x interrupts. 5578 * @instance: Adapter soft state 5579 * @is_probe: Driver probe check 5580 * 5581 * Do not enable interrupt, only setup ISRs. 5582 * 5583 * Return 0 on success. 5584 */ 5585 static int 5586 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5587 { 5588 int i, j; 5589 struct pci_dev *pdev; 5590 5591 pdev = instance->pdev; 5592 5593 /* Try MSI-x */ 5594 for (i = 0; i < instance->msix_vectors; i++) { 5595 instance->irq_context[i].instance = instance; 5596 instance->irq_context[i].MSIxIndex = i; 5597 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u", 5598 "megasas", instance->host->host_no, i); 5599 if (request_irq(pci_irq_vector(pdev, i), 5600 instance->instancet->service_isr, 0, instance->irq_context[i].name, 5601 &instance->irq_context[i])) { 5602 dev_err(&instance->pdev->dev, 5603 "Failed to register IRQ for vector %d.\n", i); 5604 for (j = 0; j < i; j++) 5605 free_irq(pci_irq_vector(pdev, j), 5606 &instance->irq_context[j]); 5607 /* Retry irq register for IO_APIC*/ 5608 instance->msix_vectors = 0; 5609 instance->msix_load_balance = false; 5610 if (is_probe) { 5611 pci_free_irq_vectors(instance->pdev); 5612 return megasas_setup_irqs_ioapic(instance); 5613 } else { 5614 return -1; 5615 } 5616 } 5617 } 5618 5619 return 0; 5620 } 5621 5622 /* 5623 * megasas_destroy_irqs- unregister interrupts. 5624 * @instance: Adapter soft state 5625 * return: void 5626 */ 5627 static void 5628 megasas_destroy_irqs(struct megasas_instance *instance) { 5629 5630 int i; 5631 int count; 5632 struct megasas_irq_context *irq_ctx; 5633 5634 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5635 if (instance->adapter_type != MFI_SERIES) { 5636 for (i = 0; i < count; i++) { 5637 irq_ctx = &instance->irq_context[i]; 5638 irq_poll_disable(&irq_ctx->irqpoll); 5639 } 5640 } 5641 5642 if (instance->msix_vectors) 5643 for (i = 0; i < instance->msix_vectors; i++) { 5644 free_irq(pci_irq_vector(instance->pdev, i), 5645 &instance->irq_context[i]); 5646 } 5647 else 5648 free_irq(pci_irq_vector(instance->pdev, 0), 5649 &instance->irq_context[0]); 5650 } 5651 5652 /** 5653 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5654 * @instance: Adapter soft state 5655 * @is_probe: Driver probe check 5656 * 5657 * Return 0 on success. 5658 */ 5659 void 5660 megasas_setup_jbod_map(struct megasas_instance *instance) 5661 { 5662 int i; 5663 struct fusion_context *fusion = instance->ctrl_context; 5664 u32 pd_seq_map_sz; 5665 5666 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 5667 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); 5668 5669 instance->use_seqnum_jbod_fp = 5670 instance->support_seqnum_jbod_fp; 5671 if (reset_devices || !fusion || 5672 !instance->support_seqnum_jbod_fp) { 5673 dev_info(&instance->pdev->dev, 5674 "JBOD sequence map is disabled %s %d\n", 5675 __func__, __LINE__); 5676 instance->use_seqnum_jbod_fp = false; 5677 return; 5678 } 5679 5680 if (fusion->pd_seq_sync[0]) 5681 goto skip_alloc; 5682 5683 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5684 fusion->pd_seq_sync[i] = dma_alloc_coherent 5685 (&instance->pdev->dev, pd_seq_map_sz, 5686 &fusion->pd_seq_phys[i], GFP_KERNEL); 5687 if (!fusion->pd_seq_sync[i]) { 5688 dev_err(&instance->pdev->dev, 5689 "Failed to allocate memory from %s %d\n", 5690 __func__, __LINE__); 5691 if (i == 1) { 5692 dma_free_coherent(&instance->pdev->dev, 5693 pd_seq_map_sz, fusion->pd_seq_sync[0], 5694 fusion->pd_seq_phys[0]); 5695 fusion->pd_seq_sync[0] = NULL; 5696 } 5697 instance->use_seqnum_jbod_fp = false; 5698 return; 5699 } 5700 } 5701 5702 skip_alloc: 5703 if (!megasas_sync_pd_seq_num(instance, false) && 5704 !megasas_sync_pd_seq_num(instance, true)) 5705 instance->use_seqnum_jbod_fp = true; 5706 else 5707 instance->use_seqnum_jbod_fp = false; 5708 } 5709 5710 static void megasas_setup_reply_map(struct megasas_instance *instance) 5711 { 5712 const struct cpumask *mask; 5713 unsigned int queue, cpu, low_latency_index_start; 5714 5715 low_latency_index_start = instance->low_latency_index_start; 5716 5717 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { 5718 mask = pci_irq_get_affinity(instance->pdev, queue); 5719 if (!mask) 5720 goto fallback; 5721 5722 for_each_cpu(cpu, mask) 5723 instance->reply_map[cpu] = queue; 5724 } 5725 return; 5726 5727 fallback: 5728 queue = low_latency_index_start; 5729 for_each_possible_cpu(cpu) { 5730 instance->reply_map[cpu] = queue; 5731 if (queue == (instance->msix_vectors - 1)) 5732 queue = low_latency_index_start; 5733 else 5734 queue++; 5735 } 5736 } 5737 5738 /** 5739 * megasas_get_device_list - Get the PD and LD device list from FW. 5740 * @instance: Adapter soft state 5741 * @return: Success or failure 5742 * 5743 * Issue DCMDs to Firmware to get the PD and LD list. 5744 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 5745 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 5746 */ 5747 static 5748 int megasas_get_device_list(struct megasas_instance *instance) 5749 { 5750 memset(instance->pd_list, 0, 5751 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); 5752 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 5753 5754 if (instance->enable_fw_dev_list) { 5755 if (megasas_host_device_list_query(instance, true)) 5756 return FAILED; 5757 } else { 5758 if (megasas_get_pd_list(instance) < 0) { 5759 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5760 return FAILED; 5761 } 5762 5763 if (megasas_ld_list_query(instance, 5764 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { 5765 dev_err(&instance->pdev->dev, "failed to get LD list\n"); 5766 return FAILED; 5767 } 5768 } 5769 5770 return SUCCESS; 5771 } 5772 5773 /** 5774 * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues 5775 * @instance: Adapter soft state 5776 * return: void 5777 */ 5778 static inline void 5779 megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance) 5780 { 5781 int i; 5782 int local_numa_node; 5783 5784 if (instance->perf_mode == MR_BALANCED_PERF_MODE) { 5785 local_numa_node = dev_to_node(&instance->pdev->dev); 5786 5787 for (i = 0; i < instance->low_latency_index_start; i++) 5788 irq_set_affinity_hint(pci_irq_vector(instance->pdev, i), 5789 cpumask_of_node(local_numa_node)); 5790 } 5791 } 5792 5793 static int 5794 __megasas_alloc_irq_vectors(struct megasas_instance *instance) 5795 { 5796 int i, irq_flags; 5797 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; 5798 struct irq_affinity *descp = &desc; 5799 5800 irq_flags = PCI_IRQ_MSIX; 5801 5802 if (instance->smp_affinity_enable) 5803 irq_flags |= PCI_IRQ_AFFINITY; 5804 else 5805 descp = NULL; 5806 5807 i = pci_alloc_irq_vectors_affinity(instance->pdev, 5808 instance->low_latency_index_start, 5809 instance->msix_vectors, irq_flags, descp); 5810 5811 return i; 5812 } 5813 5814 /** 5815 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors 5816 * @instance: Adapter soft state 5817 * return: void 5818 */ 5819 static void 5820 megasas_alloc_irq_vectors(struct megasas_instance *instance) 5821 { 5822 int i; 5823 unsigned int num_msix_req; 5824 5825 i = __megasas_alloc_irq_vectors(instance); 5826 5827 if ((instance->perf_mode == MR_BALANCED_PERF_MODE) && 5828 (i != instance->msix_vectors)) { 5829 if (instance->msix_vectors) 5830 pci_free_irq_vectors(instance->pdev); 5831 /* Disable Balanced IOPS mode and try realloc vectors */ 5832 instance->perf_mode = MR_LATENCY_PERF_MODE; 5833 instance->low_latency_index_start = 1; 5834 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 5835 5836 instance->msix_vectors = min(num_msix_req, 5837 instance->msix_vectors); 5838 5839 i = __megasas_alloc_irq_vectors(instance); 5840 5841 } 5842 5843 dev_info(&instance->pdev->dev, 5844 "requested/available msix %d/%d\n", instance->msix_vectors, i); 5845 5846 if (i > 0) 5847 instance->msix_vectors = i; 5848 else 5849 instance->msix_vectors = 0; 5850 5851 if (instance->smp_affinity_enable) 5852 megasas_set_high_iops_queue_affinity_hint(instance); 5853 } 5854 5855 /** 5856 * megasas_init_fw - Initializes the FW 5857 * @instance: Adapter soft state 5858 * 5859 * This is the main function for initializing firmware 5860 */ 5861 5862 static int megasas_init_fw(struct megasas_instance *instance) 5863 { 5864 u32 max_sectors_1; 5865 u32 max_sectors_2, tmp_sectors, msix_enable; 5866 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; 5867 resource_size_t base_addr; 5868 void *base_addr_phys; 5869 struct megasas_ctrl_info *ctrl_info = NULL; 5870 unsigned long bar_list; 5871 int i, j, loop; 5872 struct IOV_111 *iovPtr; 5873 struct fusion_context *fusion; 5874 bool intr_coalescing; 5875 unsigned int num_msix_req; 5876 u16 lnksta, speed; 5877 5878 fusion = instance->ctrl_context; 5879 5880 /* Find first memory bar */ 5881 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 5882 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 5883 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 5884 "megasas: LSI")) { 5885 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 5886 return -EBUSY; 5887 } 5888 5889 base_addr = pci_resource_start(instance->pdev, instance->bar); 5890 instance->reg_set = ioremap(base_addr, 8192); 5891 5892 if (!instance->reg_set) { 5893 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 5894 goto fail_ioremap; 5895 } 5896 5897 base_addr_phys = &base_addr; 5898 dev_printk(KERN_DEBUG, &instance->pdev->dev, 5899 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", 5900 instance->bar, base_addr_phys, instance->reg_set); 5901 5902 if (instance->adapter_type != MFI_SERIES) 5903 instance->instancet = &megasas_instance_template_fusion; 5904 else { 5905 switch (instance->pdev->device) { 5906 case PCI_DEVICE_ID_LSI_SAS1078R: 5907 case PCI_DEVICE_ID_LSI_SAS1078DE: 5908 instance->instancet = &megasas_instance_template_ppc; 5909 break; 5910 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 5911 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 5912 instance->instancet = &megasas_instance_template_gen2; 5913 break; 5914 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 5915 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 5916 instance->instancet = &megasas_instance_template_skinny; 5917 break; 5918 case PCI_DEVICE_ID_LSI_SAS1064R: 5919 case PCI_DEVICE_ID_DELL_PERC5: 5920 default: 5921 instance->instancet = &megasas_instance_template_xscale; 5922 instance->pd_list_not_supported = 1; 5923 break; 5924 } 5925 } 5926 5927 if (megasas_transition_to_ready(instance, 0)) { 5928 dev_info(&instance->pdev->dev, 5929 "Failed to transition controller to ready from %s!\n", 5930 __func__); 5931 if (instance->adapter_type != MFI_SERIES) { 5932 status_reg = instance->instancet->read_fw_status_reg( 5933 instance); 5934 if (status_reg & MFI_RESET_ADAPTER) { 5935 if (megasas_adp_reset_wait_for_ready 5936 (instance, true, 0) == FAILED) 5937 goto fail_ready_state; 5938 } else { 5939 goto fail_ready_state; 5940 } 5941 } else { 5942 atomic_set(&instance->fw_reset_no_pci_access, 1); 5943 instance->instancet->adp_reset 5944 (instance, instance->reg_set); 5945 atomic_set(&instance->fw_reset_no_pci_access, 0); 5946 5947 /*waiting for about 30 second before retry*/ 5948 ssleep(30); 5949 5950 if (megasas_transition_to_ready(instance, 0)) 5951 goto fail_ready_state; 5952 } 5953 5954 dev_info(&instance->pdev->dev, 5955 "FW restarted successfully from %s!\n", 5956 __func__); 5957 } 5958 5959 megasas_init_ctrl_params(instance); 5960 5961 if (megasas_set_dma_mask(instance)) 5962 goto fail_ready_state; 5963 5964 if (megasas_alloc_ctrl_mem(instance)) 5965 goto fail_alloc_dma_buf; 5966 5967 if (megasas_alloc_ctrl_dma_buffers(instance)) 5968 goto fail_alloc_dma_buf; 5969 5970 fusion = instance->ctrl_context; 5971 5972 if (instance->adapter_type >= VENTURA_SERIES) { 5973 scratch_pad_2 = 5974 megasas_readl(instance, 5975 &instance->reg_set->outbound_scratch_pad_2); 5976 instance->max_raid_mapsize = ((scratch_pad_2 >> 5977 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 5978 MR_MAX_RAID_MAP_SIZE_MASK); 5979 } 5980 5981 instance->enable_sdev_max_qd = enable_sdev_max_qd; 5982 5983 switch (instance->adapter_type) { 5984 case VENTURA_SERIES: 5985 fusion->pcie_bw_limitation = true; 5986 break; 5987 case AERO_SERIES: 5988 fusion->r56_div_offload = true; 5989 break; 5990 default: 5991 break; 5992 } 5993 5994 /* Check if MSI-X is supported while in ready state */ 5995 msix_enable = (instance->instancet->read_fw_status_reg(instance) & 5996 0x4000000) >> 0x1a; 5997 if (msix_enable && !msix_disable) { 5998 5999 scratch_pad_1 = megasas_readl 6000 (instance, &instance->reg_set->outbound_scratch_pad_1); 6001 /* Check max MSI-X vectors */ 6002 if (fusion) { 6003 if (instance->adapter_type == THUNDERBOLT_SERIES) { 6004 /* Thunderbolt Series*/ 6005 instance->msix_vectors = (scratch_pad_1 6006 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 6007 } else { 6008 instance->msix_vectors = ((scratch_pad_1 6009 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 6010 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 6011 6012 /* 6013 * For Invader series, > 8 MSI-x vectors 6014 * supported by FW/HW implies combined 6015 * reply queue mode is enabled. 6016 * For Ventura series, > 16 MSI-x vectors 6017 * supported by FW/HW implies combined 6018 * reply queue mode is enabled. 6019 */ 6020 switch (instance->adapter_type) { 6021 case INVADER_SERIES: 6022 if (instance->msix_vectors > 8) 6023 instance->msix_combined = true; 6024 break; 6025 case AERO_SERIES: 6026 case VENTURA_SERIES: 6027 if (instance->msix_vectors > 16) 6028 instance->msix_combined = true; 6029 break; 6030 } 6031 6032 if (rdpq_enable) 6033 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? 6034 1 : 0; 6035 6036 if (instance->adapter_type >= INVADER_SERIES && 6037 !instance->msix_combined) { 6038 instance->msix_load_balance = true; 6039 instance->smp_affinity_enable = false; 6040 } 6041 6042 /* Save 1-15 reply post index address to local memory 6043 * Index 0 is already saved from reg offset 6044 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 6045 */ 6046 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 6047 instance->reply_post_host_index_addr[loop] = 6048 (u32 __iomem *) 6049 ((u8 __iomem *)instance->reg_set + 6050 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 6051 + (loop * 0x10)); 6052 } 6053 } 6054 6055 dev_info(&instance->pdev->dev, 6056 "firmware supports msix\t: (%d)", 6057 instance->msix_vectors); 6058 if (msix_vectors) 6059 instance->msix_vectors = min(msix_vectors, 6060 instance->msix_vectors); 6061 } else /* MFI adapters */ 6062 instance->msix_vectors = 1; 6063 6064 6065 /* 6066 * For Aero (if some conditions are met), driver will configure a 6067 * few additional reply queues with interrupt coalescing enabled. 6068 * These queues with interrupt coalescing enabled are called 6069 * High IOPS queues and rest of reply queues (based on number of 6070 * logical CPUs) are termed as Low latency queues. 6071 * 6072 * Total Number of reply queues = High IOPS queues + low latency queues 6073 * 6074 * For rest of fusion adapters, 1 additional reply queue will be 6075 * reserved for management commands, rest of reply queues 6076 * (based on number of logical CPUs) will be used for IOs and 6077 * referenced as IO queues. 6078 * Total Number of reply queues = 1 + IO queues 6079 * 6080 * MFI adapters supports single MSI-x so single reply queue 6081 * will be used for IO and management commands. 6082 */ 6083 6084 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? 6085 true : false; 6086 if (intr_coalescing && 6087 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) && 6088 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) 6089 instance->perf_mode = MR_BALANCED_PERF_MODE; 6090 else 6091 instance->perf_mode = MR_LATENCY_PERF_MODE; 6092 6093 6094 if (instance->adapter_type == AERO_SERIES) { 6095 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); 6096 speed = lnksta & PCI_EXP_LNKSTA_CLS; 6097 6098 /* 6099 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate 6100 * in latency perf mode and enable R1 PCI bandwidth algorithm 6101 */ 6102 if (speed < 0x4) { 6103 instance->perf_mode = MR_LATENCY_PERF_MODE; 6104 fusion->pcie_bw_limitation = true; 6105 } 6106 6107 /* 6108 * Performance mode settings provided through module parameter-perf_mode will 6109 * take affect only for: 6110 * 1. Aero family of adapters. 6111 * 2. When user sets module parameter- perf_mode in range of 0-2. 6112 */ 6113 if ((perf_mode >= MR_BALANCED_PERF_MODE) && 6114 (perf_mode <= MR_LATENCY_PERF_MODE)) 6115 instance->perf_mode = perf_mode; 6116 /* 6117 * If intr coalescing is not supported by controller FW, then IOPS 6118 * and Balanced modes are not feasible. 6119 */ 6120 if (!intr_coalescing) 6121 instance->perf_mode = MR_LATENCY_PERF_MODE; 6122 6123 } 6124 6125 if (instance->perf_mode == MR_BALANCED_PERF_MODE) 6126 instance->low_latency_index_start = 6127 MR_HIGH_IOPS_QUEUE_COUNT; 6128 else 6129 instance->low_latency_index_start = 1; 6130 6131 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 6132 6133 instance->msix_vectors = min(num_msix_req, 6134 instance->msix_vectors); 6135 6136 megasas_alloc_irq_vectors(instance); 6137 if (!instance->msix_vectors) 6138 instance->msix_load_balance = false; 6139 } 6140 /* 6141 * MSI-X host index 0 is common for all adapter. 6142 * It is used for all MPT based Adapters. 6143 */ 6144 if (instance->msix_combined) { 6145 instance->reply_post_host_index_addr[0] = 6146 (u32 *)((u8 *)instance->reg_set + 6147 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 6148 } else { 6149 instance->reply_post_host_index_addr[0] = 6150 (u32 *)((u8 *)instance->reg_set + 6151 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 6152 } 6153 6154 if (!instance->msix_vectors) { 6155 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); 6156 if (i < 0) 6157 goto fail_init_adapter; 6158 } 6159 6160 megasas_setup_reply_map(instance); 6161 6162 dev_info(&instance->pdev->dev, 6163 "current msix/online cpus\t: (%d/%d)\n", 6164 instance->msix_vectors, (unsigned int)num_online_cpus()); 6165 dev_info(&instance->pdev->dev, 6166 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 6167 6168 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6169 (unsigned long)instance); 6170 6171 /* 6172 * Below are default value for legacy Firmware. 6173 * non-fusion based controllers 6174 */ 6175 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 6176 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 6177 /* Get operational params, sge flags, send init cmd to controller */ 6178 if (instance->instancet->init_adapter(instance)) 6179 goto fail_init_adapter; 6180 6181 if (instance->adapter_type >= VENTURA_SERIES) { 6182 scratch_pad_3 = 6183 megasas_readl(instance, 6184 &instance->reg_set->outbound_scratch_pad_3); 6185 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= 6186 MR_DEFAULT_NVME_PAGE_SHIFT) 6187 instance->nvme_page_size = 6188 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); 6189 6190 dev_info(&instance->pdev->dev, 6191 "NVME page size\t: (%d)\n", instance->nvme_page_size); 6192 } 6193 6194 if (instance->msix_vectors ? 6195 megasas_setup_irqs_msix(instance, 1) : 6196 megasas_setup_irqs_ioapic(instance)) 6197 goto fail_init_adapter; 6198 6199 if (instance->adapter_type != MFI_SERIES) 6200 megasas_setup_irq_poll(instance); 6201 6202 instance->instancet->enable_intr(instance); 6203 6204 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 6205 6206 megasas_setup_jbod_map(instance); 6207 6208 if (megasas_get_device_list(instance) != SUCCESS) { 6209 dev_err(&instance->pdev->dev, 6210 "%s: megasas_get_device_list failed\n", 6211 __func__); 6212 goto fail_get_ld_pd_list; 6213 } 6214 6215 /* stream detection initialization */ 6216 if (instance->adapter_type >= VENTURA_SERIES) { 6217 fusion->stream_detect_by_ld = 6218 kcalloc(MAX_LOGICAL_DRIVES_EXT, 6219 sizeof(struct LD_STREAM_DETECT *), 6220 GFP_KERNEL); 6221 if (!fusion->stream_detect_by_ld) { 6222 dev_err(&instance->pdev->dev, 6223 "unable to allocate stream detection for pool of LDs\n"); 6224 goto fail_get_ld_pd_list; 6225 } 6226 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 6227 fusion->stream_detect_by_ld[i] = 6228 kzalloc(sizeof(struct LD_STREAM_DETECT), 6229 GFP_KERNEL); 6230 if (!fusion->stream_detect_by_ld[i]) { 6231 dev_err(&instance->pdev->dev, 6232 "unable to allocate stream detect by LD\n "); 6233 for (j = 0; j < i; ++j) 6234 kfree(fusion->stream_detect_by_ld[j]); 6235 kfree(fusion->stream_detect_by_ld); 6236 fusion->stream_detect_by_ld = NULL; 6237 goto fail_get_ld_pd_list; 6238 } 6239 fusion->stream_detect_by_ld[i]->mru_bit_map 6240 = MR_STREAM_BITMAP; 6241 } 6242 } 6243 6244 /* 6245 * Compute the max allowed sectors per IO: The controller info has two 6246 * limits on max sectors. Driver should use the minimum of these two. 6247 * 6248 * 1 << stripe_sz_ops.min = max sectors per strip 6249 * 6250 * Note that older firmwares ( < FW ver 30) didn't report information 6251 * to calculate max_sectors_1. So the number ended up as zero always. 6252 */ 6253 tmp_sectors = 0; 6254 ctrl_info = instance->ctrl_info_buf; 6255 6256 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 6257 le16_to_cpu(ctrl_info->max_strips_per_io); 6258 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 6259 6260 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 6261 6262 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 6263 instance->passive = ctrl_info->cluster.passive; 6264 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 6265 instance->UnevenSpanSupport = 6266 ctrl_info->adapterOperations2.supportUnevenSpans; 6267 if (instance->UnevenSpanSupport) { 6268 struct fusion_context *fusion = instance->ctrl_context; 6269 if (MR_ValidateMapInfo(instance, instance->map_id)) 6270 fusion->fast_path_io = 1; 6271 else 6272 fusion->fast_path_io = 0; 6273 6274 } 6275 if (ctrl_info->host_interface.SRIOV) { 6276 instance->requestorId = ctrl_info->iov.requestorId; 6277 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 6278 if (!ctrl_info->adapterOperations2.activePassive) 6279 instance->PlasmaFW111 = 1; 6280 6281 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 6282 instance->PlasmaFW111 ? "1.11" : "new"); 6283 6284 if (instance->PlasmaFW111) { 6285 iovPtr = (struct IOV_111 *) 6286 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 6287 instance->requestorId = iovPtr->requestorId; 6288 } 6289 } 6290 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 6291 instance->requestorId); 6292 } 6293 6294 instance->crash_dump_fw_support = 6295 ctrl_info->adapterOperations3.supportCrashDump; 6296 instance->crash_dump_drv_support = 6297 (instance->crash_dump_fw_support && 6298 instance->crash_dump_buf); 6299 if (instance->crash_dump_drv_support) 6300 megasas_set_crash_dump_params(instance, 6301 MR_CRASH_BUF_TURN_OFF); 6302 6303 else { 6304 if (instance->crash_dump_buf) 6305 dma_free_coherent(&instance->pdev->dev, 6306 CRASH_DMA_BUF_SIZE, 6307 instance->crash_dump_buf, 6308 instance->crash_dump_h); 6309 instance->crash_dump_buf = NULL; 6310 } 6311 6312 if (instance->snapdump_wait_time) { 6313 megasas_get_snapdump_properties(instance); 6314 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", 6315 instance->snapdump_wait_time); 6316 } 6317 6318 dev_info(&instance->pdev->dev, 6319 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 6320 le16_to_cpu(ctrl_info->pci.vendor_id), 6321 le16_to_cpu(ctrl_info->pci.device_id), 6322 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 6323 le16_to_cpu(ctrl_info->pci.sub_device_id)); 6324 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 6325 instance->UnevenSpanSupport ? "yes" : "no"); 6326 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 6327 instance->crash_dump_drv_support ? "yes" : "no"); 6328 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", 6329 instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); 6330 6331 instance->max_sectors_per_req = instance->max_num_sge * 6332 SGE_BUFFER_SIZE / 512; 6333 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 6334 instance->max_sectors_per_req = tmp_sectors; 6335 6336 /* Check for valid throttlequeuedepth module parameter */ 6337 if (throttlequeuedepth && 6338 throttlequeuedepth <= instance->max_scsi_cmds) 6339 instance->throttlequeuedepth = throttlequeuedepth; 6340 else 6341 instance->throttlequeuedepth = 6342 MEGASAS_THROTTLE_QUEUE_DEPTH; 6343 6344 if ((resetwaittime < 1) || 6345 (resetwaittime > MEGASAS_RESET_WAIT_TIME)) 6346 resetwaittime = MEGASAS_RESET_WAIT_TIME; 6347 6348 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 6349 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 6350 6351 /* Launch SR-IOV heartbeat timer */ 6352 if (instance->requestorId) { 6353 if (!megasas_sriov_start_heartbeat(instance, 1)) { 6354 megasas_start_timer(instance); 6355 } else { 6356 instance->skip_heartbeat_timer_del = 1; 6357 goto fail_get_ld_pd_list; 6358 } 6359 } 6360 6361 /* 6362 * Create and start watchdog thread which will monitor 6363 * controller state every 1 sec and trigger OCR when 6364 * it enters fault state 6365 */ 6366 if (instance->adapter_type != MFI_SERIES) 6367 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 6368 goto fail_start_watchdog; 6369 6370 return 0; 6371 6372 fail_start_watchdog: 6373 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6374 del_timer_sync(&instance->sriov_heartbeat_timer); 6375 fail_get_ld_pd_list: 6376 instance->instancet->disable_intr(instance); 6377 megasas_destroy_irqs(instance); 6378 fail_init_adapter: 6379 if (instance->msix_vectors) 6380 pci_free_irq_vectors(instance->pdev); 6381 instance->msix_vectors = 0; 6382 fail_alloc_dma_buf: 6383 megasas_free_ctrl_dma_buffers(instance); 6384 megasas_free_ctrl_mem(instance); 6385 fail_ready_state: 6386 iounmap(instance->reg_set); 6387 6388 fail_ioremap: 6389 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6390 6391 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6392 __func__, __LINE__); 6393 return -EINVAL; 6394 } 6395 6396 /** 6397 * megasas_release_mfi - Reverses the FW initialization 6398 * @instance: Adapter soft state 6399 */ 6400 static void megasas_release_mfi(struct megasas_instance *instance) 6401 { 6402 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 6403 6404 if (instance->reply_queue) 6405 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 6406 instance->reply_queue, instance->reply_queue_h); 6407 6408 megasas_free_cmds(instance); 6409 6410 iounmap(instance->reg_set); 6411 6412 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6413 } 6414 6415 /** 6416 * megasas_get_seq_num - Gets latest event sequence numbers 6417 * @instance: Adapter soft state 6418 * @eli: FW event log sequence numbers information 6419 * 6420 * FW maintains a log of all events in a non-volatile area. Upper layers would 6421 * usually find out the latest sequence number of the events, the seq number at 6422 * the boot etc. They would "read" all the events below the latest seq number 6423 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 6424 * number), they would subsribe to AEN (asynchronous event notification) and 6425 * wait for the events to happen. 6426 */ 6427 static int 6428 megasas_get_seq_num(struct megasas_instance *instance, 6429 struct megasas_evt_log_info *eli) 6430 { 6431 struct megasas_cmd *cmd; 6432 struct megasas_dcmd_frame *dcmd; 6433 struct megasas_evt_log_info *el_info; 6434 dma_addr_t el_info_h = 0; 6435 int ret; 6436 6437 cmd = megasas_get_cmd(instance); 6438 6439 if (!cmd) { 6440 return -ENOMEM; 6441 } 6442 6443 dcmd = &cmd->frame->dcmd; 6444 el_info = dma_alloc_coherent(&instance->pdev->dev, 6445 sizeof(struct megasas_evt_log_info), 6446 &el_info_h, GFP_KERNEL); 6447 if (!el_info) { 6448 megasas_return_cmd(instance, cmd); 6449 return -ENOMEM; 6450 } 6451 6452 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6453 6454 dcmd->cmd = MFI_CMD_DCMD; 6455 dcmd->cmd_status = 0x0; 6456 dcmd->sge_count = 1; 6457 dcmd->flags = MFI_FRAME_DIR_READ; 6458 dcmd->timeout = 0; 6459 dcmd->pad_0 = 0; 6460 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 6461 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 6462 6463 megasas_set_dma_settings(instance, dcmd, el_info_h, 6464 sizeof(struct megasas_evt_log_info)); 6465 6466 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 6467 if (ret != DCMD_SUCCESS) { 6468 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6469 __func__, __LINE__); 6470 goto dcmd_failed; 6471 } 6472 6473 /* 6474 * Copy the data back into callers buffer 6475 */ 6476 eli->newest_seq_num = el_info->newest_seq_num; 6477 eli->oldest_seq_num = el_info->oldest_seq_num; 6478 eli->clear_seq_num = el_info->clear_seq_num; 6479 eli->shutdown_seq_num = el_info->shutdown_seq_num; 6480 eli->boot_seq_num = el_info->boot_seq_num; 6481 6482 dcmd_failed: 6483 dma_free_coherent(&instance->pdev->dev, 6484 sizeof(struct megasas_evt_log_info), 6485 el_info, el_info_h); 6486 6487 megasas_return_cmd(instance, cmd); 6488 6489 return ret; 6490 } 6491 6492 /** 6493 * megasas_register_aen - Registers for asynchronous event notification 6494 * @instance: Adapter soft state 6495 * @seq_num: The starting sequence number 6496 * @class_locale: Class of the event 6497 * 6498 * This function subscribes for AEN for events beyond the @seq_num. It requests 6499 * to be notified if and only if the event is of type @class_locale 6500 */ 6501 static int 6502 megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 6503 u32 class_locale_word) 6504 { 6505 int ret_val; 6506 struct megasas_cmd *cmd; 6507 struct megasas_dcmd_frame *dcmd; 6508 union megasas_evt_class_locale curr_aen; 6509 union megasas_evt_class_locale prev_aen; 6510 6511 /* 6512 * If there an AEN pending already (aen_cmd), check if the 6513 * class_locale of that pending AEN is inclusive of the new 6514 * AEN request we currently have. If it is, then we don't have 6515 * to do anything. In other words, whichever events the current 6516 * AEN request is subscribing to, have already been subscribed 6517 * to. 6518 * 6519 * If the old_cmd is _not_ inclusive, then we have to abort 6520 * that command, form a class_locale that is superset of both 6521 * old and current and re-issue to the FW 6522 */ 6523 6524 curr_aen.word = class_locale_word; 6525 6526 if (instance->aen_cmd) { 6527 6528 prev_aen.word = 6529 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 6530 6531 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || 6532 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { 6533 dev_info(&instance->pdev->dev, 6534 "%s %d out of range class %d send by application\n", 6535 __func__, __LINE__, curr_aen.members.class); 6536 return 0; 6537 } 6538 6539 /* 6540 * A class whose enum value is smaller is inclusive of all 6541 * higher values. If a PROGRESS (= -1) was previously 6542 * registered, then a new registration requests for higher 6543 * classes need not be sent to FW. They are automatically 6544 * included. 6545 * 6546 * Locale numbers don't have such hierarchy. They are bitmap 6547 * values 6548 */ 6549 if ((prev_aen.members.class <= curr_aen.members.class) && 6550 !((prev_aen.members.locale & curr_aen.members.locale) ^ 6551 curr_aen.members.locale)) { 6552 /* 6553 * Previously issued event registration includes 6554 * current request. Nothing to do. 6555 */ 6556 return 0; 6557 } else { 6558 curr_aen.members.locale |= prev_aen.members.locale; 6559 6560 if (prev_aen.members.class < curr_aen.members.class) 6561 curr_aen.members.class = prev_aen.members.class; 6562 6563 instance->aen_cmd->abort_aen = 1; 6564 ret_val = megasas_issue_blocked_abort_cmd(instance, 6565 instance-> 6566 aen_cmd, 30); 6567 6568 if (ret_val) { 6569 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 6570 "previous AEN command\n"); 6571 return ret_val; 6572 } 6573 } 6574 } 6575 6576 cmd = megasas_get_cmd(instance); 6577 6578 if (!cmd) 6579 return -ENOMEM; 6580 6581 dcmd = &cmd->frame->dcmd; 6582 6583 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 6584 6585 /* 6586 * Prepare DCMD for aen registration 6587 */ 6588 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6589 6590 dcmd->cmd = MFI_CMD_DCMD; 6591 dcmd->cmd_status = 0x0; 6592 dcmd->sge_count = 1; 6593 dcmd->flags = MFI_FRAME_DIR_READ; 6594 dcmd->timeout = 0; 6595 dcmd->pad_0 = 0; 6596 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 6597 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 6598 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 6599 instance->last_seq_num = seq_num; 6600 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 6601 6602 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, 6603 sizeof(struct megasas_evt_detail)); 6604 6605 if (instance->aen_cmd != NULL) { 6606 megasas_return_cmd(instance, cmd); 6607 return 0; 6608 } 6609 6610 /* 6611 * Store reference to the cmd used to register for AEN. When an 6612 * application wants us to register for AEN, we have to abort this 6613 * cmd and re-register with a new EVENT LOCALE supplied by that app 6614 */ 6615 instance->aen_cmd = cmd; 6616 6617 /* 6618 * Issue the aen registration frame 6619 */ 6620 instance->instancet->issue_dcmd(instance, cmd); 6621 6622 return 0; 6623 } 6624 6625 /* megasas_get_target_prop - Send DCMD with below details to firmware. 6626 * 6627 * This DCMD will fetch few properties of LD/system PD defined 6628 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 6629 * 6630 * DCMD send by drivers whenever new target is added to the OS. 6631 * 6632 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 6633 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 6634 * 0 = system PD, 1 = LD. 6635 * dcmd.mbox.s[1] - TargetID for LD/system PD. 6636 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 6637 * 6638 * @instance: Adapter soft state 6639 * @sdev: OS provided scsi device 6640 * 6641 * Returns 0 on success non-zero on failure. 6642 */ 6643 int 6644 megasas_get_target_prop(struct megasas_instance *instance, 6645 struct scsi_device *sdev) 6646 { 6647 int ret; 6648 struct megasas_cmd *cmd; 6649 struct megasas_dcmd_frame *dcmd; 6650 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 6651 sdev->id; 6652 6653 cmd = megasas_get_cmd(instance); 6654 6655 if (!cmd) { 6656 dev_err(&instance->pdev->dev, 6657 "Failed to get cmd %s\n", __func__); 6658 return -ENOMEM; 6659 } 6660 6661 dcmd = &cmd->frame->dcmd; 6662 6663 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 6664 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6665 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 6666 6667 dcmd->mbox.s[1] = cpu_to_le16(targetId); 6668 dcmd->cmd = MFI_CMD_DCMD; 6669 dcmd->cmd_status = 0xFF; 6670 dcmd->sge_count = 1; 6671 dcmd->flags = MFI_FRAME_DIR_READ; 6672 dcmd->timeout = 0; 6673 dcmd->pad_0 = 0; 6674 dcmd->data_xfer_len = 6675 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 6676 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 6677 6678 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, 6679 sizeof(struct MR_TARGET_PROPERTIES)); 6680 6681 if ((instance->adapter_type != MFI_SERIES) && 6682 !instance->mask_interrupts) 6683 ret = megasas_issue_blocked_cmd(instance, 6684 cmd, MFI_IO_TIMEOUT_SECS); 6685 else 6686 ret = megasas_issue_polled(instance, cmd); 6687 6688 switch (ret) { 6689 case DCMD_TIMEOUT: 6690 switch (dcmd_timeout_ocr_possible(instance)) { 6691 case INITIATE_OCR: 6692 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 6693 mutex_unlock(&instance->reset_mutex); 6694 megasas_reset_fusion(instance->host, 6695 MFI_IO_TIMEOUT_OCR); 6696 mutex_lock(&instance->reset_mutex); 6697 break; 6698 case KILL_ADAPTER: 6699 megaraid_sas_kill_hba(instance); 6700 break; 6701 case IGNORE_TIMEOUT: 6702 dev_info(&instance->pdev->dev, 6703 "Ignore DCMD timeout: %s %d\n", 6704 __func__, __LINE__); 6705 break; 6706 } 6707 break; 6708 6709 default: 6710 megasas_return_cmd(instance, cmd); 6711 } 6712 if (ret != DCMD_SUCCESS) 6713 dev_err(&instance->pdev->dev, 6714 "return from %s %d return value %d\n", 6715 __func__, __LINE__, ret); 6716 6717 return ret; 6718 } 6719 6720 /** 6721 * megasas_start_aen - Subscribes to AEN during driver load time 6722 * @instance: Adapter soft state 6723 */ 6724 static int megasas_start_aen(struct megasas_instance *instance) 6725 { 6726 struct megasas_evt_log_info eli; 6727 union megasas_evt_class_locale class_locale; 6728 6729 /* 6730 * Get the latest sequence number from FW 6731 */ 6732 memset(&eli, 0, sizeof(eli)); 6733 6734 if (megasas_get_seq_num(instance, &eli)) 6735 return -1; 6736 6737 /* 6738 * Register AEN with FW for latest sequence number plus 1 6739 */ 6740 class_locale.members.reserved = 0; 6741 class_locale.members.locale = MR_EVT_LOCALE_ALL; 6742 class_locale.members.class = MR_EVT_CLASS_DEBUG; 6743 6744 return megasas_register_aen(instance, 6745 le32_to_cpu(eli.newest_seq_num) + 1, 6746 class_locale.word); 6747 } 6748 6749 /** 6750 * megasas_io_attach - Attaches this driver to SCSI mid-layer 6751 * @instance: Adapter soft state 6752 */ 6753 static int megasas_io_attach(struct megasas_instance *instance) 6754 { 6755 struct Scsi_Host *host = instance->host; 6756 6757 /* 6758 * Export parameters required by SCSI mid-layer 6759 */ 6760 host->unique_id = instance->unique_id; 6761 host->can_queue = instance->max_scsi_cmds; 6762 host->this_id = instance->init_id; 6763 host->sg_tablesize = instance->max_num_sge; 6764 6765 if (instance->fw_support_ieee) 6766 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 6767 6768 /* 6769 * Check if the module parameter value for max_sectors can be used 6770 */ 6771 if (max_sectors && max_sectors < instance->max_sectors_per_req) 6772 instance->max_sectors_per_req = max_sectors; 6773 else { 6774 if (max_sectors) { 6775 if (((instance->pdev->device == 6776 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 6777 (instance->pdev->device == 6778 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 6779 (max_sectors <= MEGASAS_MAX_SECTORS)) { 6780 instance->max_sectors_per_req = max_sectors; 6781 } else { 6782 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 6783 "and <= %d (or < 1MB for GEN2 controller)\n", 6784 instance->max_sectors_per_req); 6785 } 6786 } 6787 } 6788 6789 host->max_sectors = instance->max_sectors_per_req; 6790 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 6791 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 6792 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 6793 host->max_lun = MEGASAS_MAX_LUN; 6794 host->max_cmd_len = 16; 6795 6796 /* 6797 * Notify the mid-layer about the new controller 6798 */ 6799 if (scsi_add_host(host, &instance->pdev->dev)) { 6800 dev_err(&instance->pdev->dev, 6801 "Failed to add host from %s %d\n", 6802 __func__, __LINE__); 6803 return -ENODEV; 6804 } 6805 6806 return 0; 6807 } 6808 6809 /** 6810 * megasas_set_dma_mask - Set DMA mask for supported controllers 6811 * 6812 * @instance: Adapter soft state 6813 * Description: 6814 * 6815 * For Ventura, driver/FW will operate in 63bit DMA addresses. 6816 * 6817 * For invader- 6818 * By default, driver/FW will operate in 32bit DMA addresses 6819 * for consistent DMA mapping but if 32 bit consistent 6820 * DMA mask fails, driver will try with 63 bit consistent 6821 * mask provided FW is true 63bit DMA capable 6822 * 6823 * For older controllers(Thunderbolt and MFI based adapters)- 6824 * driver/FW will operate in 32 bit consistent DMA addresses. 6825 */ 6826 static int 6827 megasas_set_dma_mask(struct megasas_instance *instance) 6828 { 6829 u64 consistent_mask; 6830 struct pci_dev *pdev; 6831 u32 scratch_pad_1; 6832 6833 pdev = instance->pdev; 6834 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? 6835 DMA_BIT_MASK(63) : DMA_BIT_MASK(32); 6836 6837 if (IS_DMA64) { 6838 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && 6839 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6840 goto fail_set_dma_mask; 6841 6842 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && 6843 (dma_set_coherent_mask(&pdev->dev, consistent_mask) && 6844 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { 6845 /* 6846 * If 32 bit DMA mask fails, then try for 64 bit mask 6847 * for FW capable of handling 64 bit DMA. 6848 */ 6849 scratch_pad_1 = megasas_readl 6850 (instance, &instance->reg_set->outbound_scratch_pad_1); 6851 6852 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) 6853 goto fail_set_dma_mask; 6854 else if (dma_set_mask_and_coherent(&pdev->dev, 6855 DMA_BIT_MASK(63))) 6856 goto fail_set_dma_mask; 6857 } 6858 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6859 goto fail_set_dma_mask; 6860 6861 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) 6862 instance->consistent_mask_64bit = false; 6863 else 6864 instance->consistent_mask_64bit = true; 6865 6866 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", 6867 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), 6868 (instance->consistent_mask_64bit ? "63" : "32")); 6869 6870 return 0; 6871 6872 fail_set_dma_mask: 6873 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 6874 return -1; 6875 6876 } 6877 6878 /* 6879 * megasas_set_adapter_type - Set adapter type. 6880 * Supported controllers can be divided in 6881 * different categories- 6882 * enum MR_ADAPTER_TYPE { 6883 * MFI_SERIES = 1, 6884 * THUNDERBOLT_SERIES = 2, 6885 * INVADER_SERIES = 3, 6886 * VENTURA_SERIES = 4, 6887 * AERO_SERIES = 5, 6888 * }; 6889 * @instance: Adapter soft state 6890 * return: void 6891 */ 6892 static inline void megasas_set_adapter_type(struct megasas_instance *instance) 6893 { 6894 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && 6895 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { 6896 instance->adapter_type = MFI_SERIES; 6897 } else { 6898 switch (instance->pdev->device) { 6899 case PCI_DEVICE_ID_LSI_AERO_10E1: 6900 case PCI_DEVICE_ID_LSI_AERO_10E2: 6901 case PCI_DEVICE_ID_LSI_AERO_10E5: 6902 case PCI_DEVICE_ID_LSI_AERO_10E6: 6903 instance->adapter_type = AERO_SERIES; 6904 break; 6905 case PCI_DEVICE_ID_LSI_VENTURA: 6906 case PCI_DEVICE_ID_LSI_CRUSADER: 6907 case PCI_DEVICE_ID_LSI_HARPOON: 6908 case PCI_DEVICE_ID_LSI_TOMCAT: 6909 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 6910 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 6911 instance->adapter_type = VENTURA_SERIES; 6912 break; 6913 case PCI_DEVICE_ID_LSI_FUSION: 6914 case PCI_DEVICE_ID_LSI_PLASMA: 6915 instance->adapter_type = THUNDERBOLT_SERIES; 6916 break; 6917 case PCI_DEVICE_ID_LSI_INVADER: 6918 case PCI_DEVICE_ID_LSI_INTRUDER: 6919 case PCI_DEVICE_ID_LSI_INTRUDER_24: 6920 case PCI_DEVICE_ID_LSI_CUTLASS_52: 6921 case PCI_DEVICE_ID_LSI_CUTLASS_53: 6922 case PCI_DEVICE_ID_LSI_FURY: 6923 instance->adapter_type = INVADER_SERIES; 6924 break; 6925 default: /* For all other supported controllers */ 6926 instance->adapter_type = MFI_SERIES; 6927 break; 6928 } 6929 } 6930 } 6931 6932 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) 6933 { 6934 instance->producer = dma_alloc_coherent(&instance->pdev->dev, 6935 sizeof(u32), &instance->producer_h, GFP_KERNEL); 6936 instance->consumer = dma_alloc_coherent(&instance->pdev->dev, 6937 sizeof(u32), &instance->consumer_h, GFP_KERNEL); 6938 6939 if (!instance->producer || !instance->consumer) { 6940 dev_err(&instance->pdev->dev, 6941 "Failed to allocate memory for producer, consumer\n"); 6942 return -1; 6943 } 6944 6945 *instance->producer = 0; 6946 *instance->consumer = 0; 6947 return 0; 6948 } 6949 6950 /** 6951 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data 6952 * structures which are not common across MFI 6953 * adapters and fusion adapters. 6954 * For MFI based adapters, allocate producer and 6955 * consumer buffers. For fusion adapters, allocate 6956 * memory for fusion context. 6957 * @instance: Adapter soft state 6958 * return: 0 for SUCCESS 6959 */ 6960 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) 6961 { 6962 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), 6963 GFP_KERNEL); 6964 if (!instance->reply_map) 6965 return -ENOMEM; 6966 6967 switch (instance->adapter_type) { 6968 case MFI_SERIES: 6969 if (megasas_alloc_mfi_ctrl_mem(instance)) 6970 goto fail; 6971 break; 6972 case AERO_SERIES: 6973 case VENTURA_SERIES: 6974 case THUNDERBOLT_SERIES: 6975 case INVADER_SERIES: 6976 if (megasas_alloc_fusion_context(instance)) 6977 goto fail; 6978 break; 6979 } 6980 6981 return 0; 6982 fail: 6983 kfree(instance->reply_map); 6984 instance->reply_map = NULL; 6985 return -ENOMEM; 6986 } 6987 6988 /* 6989 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and 6990 * producer, consumer buffers for MFI adapters 6991 * 6992 * @instance - Adapter soft instance 6993 * 6994 */ 6995 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) 6996 { 6997 kfree(instance->reply_map); 6998 if (instance->adapter_type == MFI_SERIES) { 6999 if (instance->producer) 7000 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7001 instance->producer, 7002 instance->producer_h); 7003 if (instance->consumer) 7004 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7005 instance->consumer, 7006 instance->consumer_h); 7007 } else { 7008 megasas_free_fusion_context(instance); 7009 } 7010 } 7011 7012 /** 7013 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during 7014 * driver load time 7015 * 7016 * @instance- Adapter soft instance 7017 * @return- O for SUCCESS 7018 */ 7019 static inline 7020 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) 7021 { 7022 struct pci_dev *pdev = instance->pdev; 7023 struct fusion_context *fusion = instance->ctrl_context; 7024 7025 instance->evt_detail = dma_alloc_coherent(&pdev->dev, 7026 sizeof(struct megasas_evt_detail), 7027 &instance->evt_detail_h, GFP_KERNEL); 7028 7029 if (!instance->evt_detail) { 7030 dev_err(&instance->pdev->dev, 7031 "Failed to allocate event detail buffer\n"); 7032 return -ENOMEM; 7033 } 7034 7035 if (fusion) { 7036 fusion->ioc_init_request = 7037 dma_alloc_coherent(&pdev->dev, 7038 sizeof(struct MPI2_IOC_INIT_REQUEST), 7039 &fusion->ioc_init_request_phys, 7040 GFP_KERNEL); 7041 7042 if (!fusion->ioc_init_request) { 7043 dev_err(&pdev->dev, 7044 "Failed to allocate PD list buffer\n"); 7045 return -ENOMEM; 7046 } 7047 7048 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, 7049 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7050 &instance->snapdump_prop_h, GFP_KERNEL); 7051 7052 if (!instance->snapdump_prop) 7053 dev_err(&pdev->dev, 7054 "Failed to allocate snapdump properties buffer\n"); 7055 7056 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, 7057 HOST_DEVICE_LIST_SZ, 7058 &instance->host_device_list_buf_h, 7059 GFP_KERNEL); 7060 7061 if (!instance->host_device_list_buf) { 7062 dev_err(&pdev->dev, 7063 "Failed to allocate targetid list buffer\n"); 7064 return -ENOMEM; 7065 } 7066 7067 } 7068 7069 instance->pd_list_buf = 7070 dma_alloc_coherent(&pdev->dev, 7071 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7072 &instance->pd_list_buf_h, GFP_KERNEL); 7073 7074 if (!instance->pd_list_buf) { 7075 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); 7076 return -ENOMEM; 7077 } 7078 7079 instance->ctrl_info_buf = 7080 dma_alloc_coherent(&pdev->dev, 7081 sizeof(struct megasas_ctrl_info), 7082 &instance->ctrl_info_buf_h, GFP_KERNEL); 7083 7084 if (!instance->ctrl_info_buf) { 7085 dev_err(&pdev->dev, 7086 "Failed to allocate controller info buffer\n"); 7087 return -ENOMEM; 7088 } 7089 7090 instance->ld_list_buf = 7091 dma_alloc_coherent(&pdev->dev, 7092 sizeof(struct MR_LD_LIST), 7093 &instance->ld_list_buf_h, GFP_KERNEL); 7094 7095 if (!instance->ld_list_buf) { 7096 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); 7097 return -ENOMEM; 7098 } 7099 7100 instance->ld_targetid_list_buf = 7101 dma_alloc_coherent(&pdev->dev, 7102 sizeof(struct MR_LD_TARGETID_LIST), 7103 &instance->ld_targetid_list_buf_h, GFP_KERNEL); 7104 7105 if (!instance->ld_targetid_list_buf) { 7106 dev_err(&pdev->dev, 7107 "Failed to allocate LD targetid list buffer\n"); 7108 return -ENOMEM; 7109 } 7110 7111 if (!reset_devices) { 7112 instance->system_info_buf = 7113 dma_alloc_coherent(&pdev->dev, 7114 sizeof(struct MR_DRV_SYSTEM_INFO), 7115 &instance->system_info_h, GFP_KERNEL); 7116 instance->pd_info = 7117 dma_alloc_coherent(&pdev->dev, 7118 sizeof(struct MR_PD_INFO), 7119 &instance->pd_info_h, GFP_KERNEL); 7120 instance->tgt_prop = 7121 dma_alloc_coherent(&pdev->dev, 7122 sizeof(struct MR_TARGET_PROPERTIES), 7123 &instance->tgt_prop_h, GFP_KERNEL); 7124 instance->crash_dump_buf = 7125 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7126 &instance->crash_dump_h, GFP_KERNEL); 7127 7128 if (!instance->system_info_buf) 7129 dev_err(&instance->pdev->dev, 7130 "Failed to allocate system info buffer\n"); 7131 7132 if (!instance->pd_info) 7133 dev_err(&instance->pdev->dev, 7134 "Failed to allocate pd_info buffer\n"); 7135 7136 if (!instance->tgt_prop) 7137 dev_err(&instance->pdev->dev, 7138 "Failed to allocate tgt_prop buffer\n"); 7139 7140 if (!instance->crash_dump_buf) 7141 dev_err(&instance->pdev->dev, 7142 "Failed to allocate crash dump buffer\n"); 7143 } 7144 7145 return 0; 7146 } 7147 7148 /* 7149 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated 7150 * during driver load time 7151 * 7152 * @instance- Adapter soft instance 7153 * 7154 */ 7155 static inline 7156 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) 7157 { 7158 struct pci_dev *pdev = instance->pdev; 7159 struct fusion_context *fusion = instance->ctrl_context; 7160 7161 if (instance->evt_detail) 7162 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), 7163 instance->evt_detail, 7164 instance->evt_detail_h); 7165 7166 if (fusion && fusion->ioc_init_request) 7167 dma_free_coherent(&pdev->dev, 7168 sizeof(struct MPI2_IOC_INIT_REQUEST), 7169 fusion->ioc_init_request, 7170 fusion->ioc_init_request_phys); 7171 7172 if (instance->pd_list_buf) 7173 dma_free_coherent(&pdev->dev, 7174 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7175 instance->pd_list_buf, 7176 instance->pd_list_buf_h); 7177 7178 if (instance->ld_list_buf) 7179 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), 7180 instance->ld_list_buf, 7181 instance->ld_list_buf_h); 7182 7183 if (instance->ld_targetid_list_buf) 7184 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), 7185 instance->ld_targetid_list_buf, 7186 instance->ld_targetid_list_buf_h); 7187 7188 if (instance->ctrl_info_buf) 7189 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), 7190 instance->ctrl_info_buf, 7191 instance->ctrl_info_buf_h); 7192 7193 if (instance->system_info_buf) 7194 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), 7195 instance->system_info_buf, 7196 instance->system_info_h); 7197 7198 if (instance->pd_info) 7199 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), 7200 instance->pd_info, instance->pd_info_h); 7201 7202 if (instance->tgt_prop) 7203 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), 7204 instance->tgt_prop, instance->tgt_prop_h); 7205 7206 if (instance->crash_dump_buf) 7207 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7208 instance->crash_dump_buf, 7209 instance->crash_dump_h); 7210 7211 if (instance->snapdump_prop) 7212 dma_free_coherent(&pdev->dev, 7213 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7214 instance->snapdump_prop, 7215 instance->snapdump_prop_h); 7216 7217 if (instance->host_device_list_buf) 7218 dma_free_coherent(&pdev->dev, 7219 HOST_DEVICE_LIST_SZ, 7220 instance->host_device_list_buf, 7221 instance->host_device_list_buf_h); 7222 7223 } 7224 7225 /* 7226 * megasas_init_ctrl_params - Initialize controller's instance 7227 * parameters before FW init 7228 * @instance - Adapter soft instance 7229 * @return - void 7230 */ 7231 static inline void megasas_init_ctrl_params(struct megasas_instance *instance) 7232 { 7233 instance->fw_crash_state = UNAVAILABLE; 7234 7235 megasas_poll_wait_aen = 0; 7236 instance->issuepend_done = 1; 7237 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 7238 7239 /* 7240 * Initialize locks and queues 7241 */ 7242 INIT_LIST_HEAD(&instance->cmd_pool); 7243 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 7244 7245 atomic_set(&instance->fw_outstanding, 0); 7246 atomic64_set(&instance->total_io_count, 0); 7247 7248 init_waitqueue_head(&instance->int_cmd_wait_q); 7249 init_waitqueue_head(&instance->abort_cmd_wait_q); 7250 7251 spin_lock_init(&instance->crashdump_lock); 7252 spin_lock_init(&instance->mfi_pool_lock); 7253 spin_lock_init(&instance->hba_lock); 7254 spin_lock_init(&instance->stream_lock); 7255 spin_lock_init(&instance->completion_lock); 7256 7257 mutex_init(&instance->reset_mutex); 7258 7259 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 7260 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 7261 instance->flag_ieee = 1; 7262 7263 megasas_dbg_lvl = 0; 7264 instance->flag = 0; 7265 instance->unload = 1; 7266 instance->last_time = 0; 7267 instance->disableOnlineCtrlReset = 1; 7268 instance->UnevenSpanSupport = 0; 7269 instance->smp_affinity_enable = smp_affinity_enable ? true : false; 7270 instance->msix_load_balance = false; 7271 7272 if (instance->adapter_type != MFI_SERIES) 7273 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 7274 else 7275 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 7276 } 7277 7278 /** 7279 * megasas_probe_one - PCI hotplug entry point 7280 * @pdev: PCI device structure 7281 * @id: PCI ids of supported hotplugged adapter 7282 */ 7283 static int megasas_probe_one(struct pci_dev *pdev, 7284 const struct pci_device_id *id) 7285 { 7286 int rval, pos; 7287 struct Scsi_Host *host; 7288 struct megasas_instance *instance; 7289 u16 control = 0; 7290 7291 switch (pdev->device) { 7292 case PCI_DEVICE_ID_LSI_AERO_10E0: 7293 case PCI_DEVICE_ID_LSI_AERO_10E3: 7294 case PCI_DEVICE_ID_LSI_AERO_10E4: 7295 case PCI_DEVICE_ID_LSI_AERO_10E7: 7296 dev_err(&pdev->dev, "Adapter is in non secure mode\n"); 7297 return 1; 7298 case PCI_DEVICE_ID_LSI_AERO_10E1: 7299 case PCI_DEVICE_ID_LSI_AERO_10E5: 7300 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); 7301 break; 7302 } 7303 7304 /* Reset MSI-X in the kdump kernel */ 7305 if (reset_devices) { 7306 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 7307 if (pos) { 7308 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 7309 &control); 7310 if (control & PCI_MSIX_FLAGS_ENABLE) { 7311 dev_info(&pdev->dev, "resetting MSI-X\n"); 7312 pci_write_config_word(pdev, 7313 pos + PCI_MSIX_FLAGS, 7314 control & 7315 ~PCI_MSIX_FLAGS_ENABLE); 7316 } 7317 } 7318 } 7319 7320 /* 7321 * PCI prepping: enable device set bus mastering and dma mask 7322 */ 7323 rval = pci_enable_device_mem(pdev); 7324 7325 if (rval) { 7326 return rval; 7327 } 7328 7329 pci_set_master(pdev); 7330 7331 host = scsi_host_alloc(&megasas_template, 7332 sizeof(struct megasas_instance)); 7333 7334 if (!host) { 7335 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 7336 goto fail_alloc_instance; 7337 } 7338 7339 instance = (struct megasas_instance *)host->hostdata; 7340 memset(instance, 0, sizeof(*instance)); 7341 atomic_set(&instance->fw_reset_no_pci_access, 0); 7342 7343 /* 7344 * Initialize PCI related and misc parameters 7345 */ 7346 instance->pdev = pdev; 7347 instance->host = host; 7348 instance->unique_id = pdev->bus->number << 8 | pdev->devfn; 7349 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 7350 7351 megasas_set_adapter_type(instance); 7352 7353 /* 7354 * Initialize MFI Firmware 7355 */ 7356 if (megasas_init_fw(instance)) 7357 goto fail_init_mfi; 7358 7359 if (instance->requestorId) { 7360 if (instance->PlasmaFW111) { 7361 instance->vf_affiliation_111 = 7362 dma_alloc_coherent(&pdev->dev, 7363 sizeof(struct MR_LD_VF_AFFILIATION_111), 7364 &instance->vf_affiliation_111_h, 7365 GFP_KERNEL); 7366 if (!instance->vf_affiliation_111) 7367 dev_warn(&pdev->dev, "Can't allocate " 7368 "memory for VF affiliation buffer\n"); 7369 } else { 7370 instance->vf_affiliation = 7371 dma_alloc_coherent(&pdev->dev, 7372 (MAX_LOGICAL_DRIVES + 1) * 7373 sizeof(struct MR_LD_VF_AFFILIATION), 7374 &instance->vf_affiliation_h, 7375 GFP_KERNEL); 7376 if (!instance->vf_affiliation) 7377 dev_warn(&pdev->dev, "Can't allocate " 7378 "memory for VF affiliation buffer\n"); 7379 } 7380 } 7381 7382 /* 7383 * Store instance in PCI softstate 7384 */ 7385 pci_set_drvdata(pdev, instance); 7386 7387 /* 7388 * Add this controller to megasas_mgmt_info structure so that it 7389 * can be exported to management applications 7390 */ 7391 megasas_mgmt_info.count++; 7392 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 7393 megasas_mgmt_info.max_index++; 7394 7395 /* 7396 * Register with SCSI mid-layer 7397 */ 7398 if (megasas_io_attach(instance)) 7399 goto fail_io_attach; 7400 7401 instance->unload = 0; 7402 /* 7403 * Trigger SCSI to scan our drives 7404 */ 7405 if (!instance->enable_fw_dev_list || 7406 (instance->host_device_list_buf->count > 0)) 7407 scsi_scan_host(host); 7408 7409 /* 7410 * Initiate AEN (Asynchronous Event Notification) 7411 */ 7412 if (megasas_start_aen(instance)) { 7413 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 7414 goto fail_start_aen; 7415 } 7416 7417 megasas_setup_debugfs(instance); 7418 7419 /* Get current SR-IOV LD/VF affiliation */ 7420 if (instance->requestorId) 7421 megasas_get_ld_vf_affiliation(instance, 1); 7422 7423 return 0; 7424 7425 fail_start_aen: 7426 fail_io_attach: 7427 megasas_mgmt_info.count--; 7428 megasas_mgmt_info.max_index--; 7429 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 7430 7431 instance->instancet->disable_intr(instance); 7432 megasas_destroy_irqs(instance); 7433 7434 if (instance->adapter_type != MFI_SERIES) 7435 megasas_release_fusion(instance); 7436 else 7437 megasas_release_mfi(instance); 7438 if (instance->msix_vectors) 7439 pci_free_irq_vectors(instance->pdev); 7440 fail_init_mfi: 7441 scsi_host_put(host); 7442 fail_alloc_instance: 7443 pci_disable_device(pdev); 7444 7445 return -ENODEV; 7446 } 7447 7448 /** 7449 * megasas_flush_cache - Requests FW to flush all its caches 7450 * @instance: Adapter soft state 7451 */ 7452 static void megasas_flush_cache(struct megasas_instance *instance) 7453 { 7454 struct megasas_cmd *cmd; 7455 struct megasas_dcmd_frame *dcmd; 7456 7457 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7458 return; 7459 7460 cmd = megasas_get_cmd(instance); 7461 7462 if (!cmd) 7463 return; 7464 7465 dcmd = &cmd->frame->dcmd; 7466 7467 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7468 7469 dcmd->cmd = MFI_CMD_DCMD; 7470 dcmd->cmd_status = 0x0; 7471 dcmd->sge_count = 0; 7472 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7473 dcmd->timeout = 0; 7474 dcmd->pad_0 = 0; 7475 dcmd->data_xfer_len = 0; 7476 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 7477 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 7478 7479 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7480 != DCMD_SUCCESS) { 7481 dev_err(&instance->pdev->dev, 7482 "return from %s %d\n", __func__, __LINE__); 7483 return; 7484 } 7485 7486 megasas_return_cmd(instance, cmd); 7487 } 7488 7489 /** 7490 * megasas_shutdown_controller - Instructs FW to shutdown the controller 7491 * @instance: Adapter soft state 7492 * @opcode: Shutdown/Hibernate 7493 */ 7494 static void megasas_shutdown_controller(struct megasas_instance *instance, 7495 u32 opcode) 7496 { 7497 struct megasas_cmd *cmd; 7498 struct megasas_dcmd_frame *dcmd; 7499 7500 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7501 return; 7502 7503 cmd = megasas_get_cmd(instance); 7504 7505 if (!cmd) 7506 return; 7507 7508 if (instance->aen_cmd) 7509 megasas_issue_blocked_abort_cmd(instance, 7510 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 7511 if (instance->map_update_cmd) 7512 megasas_issue_blocked_abort_cmd(instance, 7513 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 7514 if (instance->jbod_seq_cmd) 7515 megasas_issue_blocked_abort_cmd(instance, 7516 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 7517 7518 dcmd = &cmd->frame->dcmd; 7519 7520 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7521 7522 dcmd->cmd = MFI_CMD_DCMD; 7523 dcmd->cmd_status = 0x0; 7524 dcmd->sge_count = 0; 7525 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7526 dcmd->timeout = 0; 7527 dcmd->pad_0 = 0; 7528 dcmd->data_xfer_len = 0; 7529 dcmd->opcode = cpu_to_le32(opcode); 7530 7531 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7532 != DCMD_SUCCESS) { 7533 dev_err(&instance->pdev->dev, 7534 "return from %s %d\n", __func__, __LINE__); 7535 return; 7536 } 7537 7538 megasas_return_cmd(instance, cmd); 7539 } 7540 7541 #ifdef CONFIG_PM 7542 /** 7543 * megasas_suspend - driver suspend entry point 7544 * @pdev: PCI device structure 7545 * @state: PCI power state to suspend routine 7546 */ 7547 static int 7548 megasas_suspend(struct pci_dev *pdev, pm_message_t state) 7549 { 7550 struct megasas_instance *instance; 7551 7552 instance = pci_get_drvdata(pdev); 7553 7554 if (!instance) 7555 return 0; 7556 7557 instance->unload = 1; 7558 7559 dev_info(&pdev->dev, "%s is called\n", __func__); 7560 7561 /* Shutdown SR-IOV heartbeat timer */ 7562 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7563 del_timer_sync(&instance->sriov_heartbeat_timer); 7564 7565 /* Stop the FW fault detection watchdog */ 7566 if (instance->adapter_type != MFI_SERIES) 7567 megasas_fusion_stop_watchdog(instance); 7568 7569 megasas_flush_cache(instance); 7570 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 7571 7572 /* cancel the delayed work if this work still in queue */ 7573 if (instance->ev != NULL) { 7574 struct megasas_aen_event *ev = instance->ev; 7575 cancel_delayed_work_sync(&ev->hotplug_work); 7576 instance->ev = NULL; 7577 } 7578 7579 tasklet_kill(&instance->isr_tasklet); 7580 7581 pci_set_drvdata(instance->pdev, instance); 7582 instance->instancet->disable_intr(instance); 7583 7584 megasas_destroy_irqs(instance); 7585 7586 if (instance->msix_vectors) 7587 pci_free_irq_vectors(instance->pdev); 7588 7589 pci_save_state(pdev); 7590 pci_disable_device(pdev); 7591 7592 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 7593 7594 return 0; 7595 } 7596 7597 /** 7598 * megasas_resume- driver resume entry point 7599 * @pdev: PCI device structure 7600 */ 7601 static int 7602 megasas_resume(struct pci_dev *pdev) 7603 { 7604 int rval; 7605 struct Scsi_Host *host; 7606 struct megasas_instance *instance; 7607 u32 status_reg; 7608 7609 instance = pci_get_drvdata(pdev); 7610 7611 if (!instance) 7612 return 0; 7613 7614 host = instance->host; 7615 pci_set_power_state(pdev, PCI_D0); 7616 pci_enable_wake(pdev, PCI_D0, 0); 7617 pci_restore_state(pdev); 7618 7619 dev_info(&pdev->dev, "%s is called\n", __func__); 7620 /* 7621 * PCI prepping: enable device set bus mastering and dma mask 7622 */ 7623 rval = pci_enable_device_mem(pdev); 7624 7625 if (rval) { 7626 dev_err(&pdev->dev, "Enable device failed\n"); 7627 return rval; 7628 } 7629 7630 pci_set_master(pdev); 7631 7632 /* 7633 * We expect the FW state to be READY 7634 */ 7635 7636 if (megasas_transition_to_ready(instance, 0)) { 7637 dev_info(&instance->pdev->dev, 7638 "Failed to transition controller to ready from %s!\n", 7639 __func__); 7640 if (instance->adapter_type != MFI_SERIES) { 7641 status_reg = 7642 instance->instancet->read_fw_status_reg(instance); 7643 if (!(status_reg & MFI_RESET_ADAPTER) || 7644 ((megasas_adp_reset_wait_for_ready 7645 (instance, true, 0)) == FAILED)) 7646 goto fail_ready_state; 7647 } else { 7648 atomic_set(&instance->fw_reset_no_pci_access, 1); 7649 instance->instancet->adp_reset 7650 (instance, instance->reg_set); 7651 atomic_set(&instance->fw_reset_no_pci_access, 0); 7652 7653 /* waiting for about 30 seconds before retry */ 7654 ssleep(30); 7655 7656 if (megasas_transition_to_ready(instance, 0)) 7657 goto fail_ready_state; 7658 } 7659 7660 dev_info(&instance->pdev->dev, 7661 "FW restarted successfully from %s!\n", 7662 __func__); 7663 } 7664 if (megasas_set_dma_mask(instance)) 7665 goto fail_set_dma_mask; 7666 7667 /* 7668 * Initialize MFI Firmware 7669 */ 7670 7671 atomic_set(&instance->fw_outstanding, 0); 7672 atomic_set(&instance->ldio_outstanding, 0); 7673 7674 /* Now re-enable MSI-X */ 7675 if (instance->msix_vectors) 7676 megasas_alloc_irq_vectors(instance); 7677 7678 if (!instance->msix_vectors) { 7679 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, 7680 PCI_IRQ_LEGACY); 7681 if (rval < 0) 7682 goto fail_reenable_msix; 7683 } 7684 7685 megasas_setup_reply_map(instance); 7686 7687 if (instance->adapter_type != MFI_SERIES) { 7688 megasas_reset_reply_desc(instance); 7689 if (megasas_ioc_init_fusion(instance)) { 7690 megasas_free_cmds(instance); 7691 megasas_free_cmds_fusion(instance); 7692 goto fail_init_mfi; 7693 } 7694 if (!megasas_get_map_info(instance)) 7695 megasas_sync_map_info(instance); 7696 } else { 7697 *instance->producer = 0; 7698 *instance->consumer = 0; 7699 if (megasas_issue_init_mfi(instance)) 7700 goto fail_init_mfi; 7701 } 7702 7703 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) 7704 goto fail_init_mfi; 7705 7706 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 7707 (unsigned long)instance); 7708 7709 if (instance->msix_vectors ? 7710 megasas_setup_irqs_msix(instance, 0) : 7711 megasas_setup_irqs_ioapic(instance)) 7712 goto fail_init_mfi; 7713 7714 if (instance->adapter_type != MFI_SERIES) 7715 megasas_setup_irq_poll(instance); 7716 7717 /* Re-launch SR-IOV heartbeat timer */ 7718 if (instance->requestorId) { 7719 if (!megasas_sriov_start_heartbeat(instance, 0)) 7720 megasas_start_timer(instance); 7721 else { 7722 instance->skip_heartbeat_timer_del = 1; 7723 goto fail_init_mfi; 7724 } 7725 } 7726 7727 instance->instancet->enable_intr(instance); 7728 megasas_setup_jbod_map(instance); 7729 instance->unload = 0; 7730 7731 /* 7732 * Initiate AEN (Asynchronous Event Notification) 7733 */ 7734 if (megasas_start_aen(instance)) 7735 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 7736 7737 /* Re-launch FW fault watchdog */ 7738 if (instance->adapter_type != MFI_SERIES) 7739 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 7740 goto fail_start_watchdog; 7741 7742 return 0; 7743 7744 fail_start_watchdog: 7745 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7746 del_timer_sync(&instance->sriov_heartbeat_timer); 7747 fail_init_mfi: 7748 megasas_free_ctrl_dma_buffers(instance); 7749 megasas_free_ctrl_mem(instance); 7750 scsi_host_put(host); 7751 7752 fail_reenable_msix: 7753 fail_set_dma_mask: 7754 fail_ready_state: 7755 7756 pci_disable_device(pdev); 7757 7758 return -ENODEV; 7759 } 7760 #else 7761 #define megasas_suspend NULL 7762 #define megasas_resume NULL 7763 #endif 7764 7765 static inline int 7766 megasas_wait_for_adapter_operational(struct megasas_instance *instance) 7767 { 7768 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 7769 int i; 7770 u8 adp_state; 7771 7772 for (i = 0; i < wait_time; i++) { 7773 adp_state = atomic_read(&instance->adprecovery); 7774 if ((adp_state == MEGASAS_HBA_OPERATIONAL) || 7775 (adp_state == MEGASAS_HW_CRITICAL_ERROR)) 7776 break; 7777 7778 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 7779 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 7780 7781 msleep(1000); 7782 } 7783 7784 if (adp_state != MEGASAS_HBA_OPERATIONAL) { 7785 dev_info(&instance->pdev->dev, 7786 "%s HBA failed to become operational, adp_state %d\n", 7787 __func__, adp_state); 7788 return 1; 7789 } 7790 7791 return 0; 7792 } 7793 7794 /** 7795 * megasas_detach_one - PCI hot"un"plug entry point 7796 * @pdev: PCI device structure 7797 */ 7798 static void megasas_detach_one(struct pci_dev *pdev) 7799 { 7800 int i; 7801 struct Scsi_Host *host; 7802 struct megasas_instance *instance; 7803 struct fusion_context *fusion; 7804 u32 pd_seq_map_sz; 7805 7806 instance = pci_get_drvdata(pdev); 7807 7808 if (!instance) 7809 return; 7810 7811 host = instance->host; 7812 fusion = instance->ctrl_context; 7813 7814 /* Shutdown SR-IOV heartbeat timer */ 7815 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7816 del_timer_sync(&instance->sriov_heartbeat_timer); 7817 7818 /* Stop the FW fault detection watchdog */ 7819 if (instance->adapter_type != MFI_SERIES) 7820 megasas_fusion_stop_watchdog(instance); 7821 7822 if (instance->fw_crash_state != UNAVAILABLE) 7823 megasas_free_host_crash_buffer(instance); 7824 scsi_remove_host(instance->host); 7825 instance->unload = 1; 7826 7827 if (megasas_wait_for_adapter_operational(instance)) 7828 goto skip_firing_dcmds; 7829 7830 megasas_flush_cache(instance); 7831 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7832 7833 skip_firing_dcmds: 7834 /* cancel the delayed work if this work still in queue*/ 7835 if (instance->ev != NULL) { 7836 struct megasas_aen_event *ev = instance->ev; 7837 cancel_delayed_work_sync(&ev->hotplug_work); 7838 instance->ev = NULL; 7839 } 7840 7841 /* cancel all wait events */ 7842 wake_up_all(&instance->int_cmd_wait_q); 7843 7844 tasklet_kill(&instance->isr_tasklet); 7845 7846 /* 7847 * Take the instance off the instance array. Note that we will not 7848 * decrement the max_index. We let this array be sparse array 7849 */ 7850 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 7851 if (megasas_mgmt_info.instance[i] == instance) { 7852 megasas_mgmt_info.count--; 7853 megasas_mgmt_info.instance[i] = NULL; 7854 7855 break; 7856 } 7857 } 7858 7859 instance->instancet->disable_intr(instance); 7860 7861 megasas_destroy_irqs(instance); 7862 7863 if (instance->msix_vectors) 7864 pci_free_irq_vectors(instance->pdev); 7865 7866 if (instance->adapter_type >= VENTURA_SERIES) { 7867 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 7868 kfree(fusion->stream_detect_by_ld[i]); 7869 kfree(fusion->stream_detect_by_ld); 7870 fusion->stream_detect_by_ld = NULL; 7871 } 7872 7873 7874 if (instance->adapter_type != MFI_SERIES) { 7875 megasas_release_fusion(instance); 7876 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 7877 (sizeof(struct MR_PD_CFG_SEQ) * 7878 (MAX_PHYSICAL_DEVICES - 1)); 7879 for (i = 0; i < 2 ; i++) { 7880 if (fusion->ld_map[i]) 7881 dma_free_coherent(&instance->pdev->dev, 7882 fusion->max_map_sz, 7883 fusion->ld_map[i], 7884 fusion->ld_map_phys[i]); 7885 if (fusion->ld_drv_map[i]) { 7886 if (is_vmalloc_addr(fusion->ld_drv_map[i])) 7887 vfree(fusion->ld_drv_map[i]); 7888 else 7889 free_pages((ulong)fusion->ld_drv_map[i], 7890 fusion->drv_map_pages); 7891 } 7892 7893 if (fusion->pd_seq_sync[i]) 7894 dma_free_coherent(&instance->pdev->dev, 7895 pd_seq_map_sz, 7896 fusion->pd_seq_sync[i], 7897 fusion->pd_seq_phys[i]); 7898 } 7899 } else { 7900 megasas_release_mfi(instance); 7901 } 7902 7903 if (instance->vf_affiliation) 7904 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * 7905 sizeof(struct MR_LD_VF_AFFILIATION), 7906 instance->vf_affiliation, 7907 instance->vf_affiliation_h); 7908 7909 if (instance->vf_affiliation_111) 7910 dma_free_coherent(&pdev->dev, 7911 sizeof(struct MR_LD_VF_AFFILIATION_111), 7912 instance->vf_affiliation_111, 7913 instance->vf_affiliation_111_h); 7914 7915 if (instance->hb_host_mem) 7916 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), 7917 instance->hb_host_mem, 7918 instance->hb_host_mem_h); 7919 7920 megasas_free_ctrl_dma_buffers(instance); 7921 7922 megasas_free_ctrl_mem(instance); 7923 7924 megasas_destroy_debugfs(instance); 7925 7926 scsi_host_put(host); 7927 7928 pci_disable_device(pdev); 7929 } 7930 7931 /** 7932 * megasas_shutdown - Shutdown entry point 7933 * @device: Generic device structure 7934 */ 7935 static void megasas_shutdown(struct pci_dev *pdev) 7936 { 7937 struct megasas_instance *instance = pci_get_drvdata(pdev); 7938 7939 if (!instance) 7940 return; 7941 7942 instance->unload = 1; 7943 7944 if (megasas_wait_for_adapter_operational(instance)) 7945 goto skip_firing_dcmds; 7946 7947 megasas_flush_cache(instance); 7948 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7949 7950 skip_firing_dcmds: 7951 instance->instancet->disable_intr(instance); 7952 megasas_destroy_irqs(instance); 7953 7954 if (instance->msix_vectors) 7955 pci_free_irq_vectors(instance->pdev); 7956 } 7957 7958 /** 7959 * megasas_mgmt_open - char node "open" entry point 7960 */ 7961 static int megasas_mgmt_open(struct inode *inode, struct file *filep) 7962 { 7963 /* 7964 * Allow only those users with admin rights 7965 */ 7966 if (!capable(CAP_SYS_ADMIN)) 7967 return -EACCES; 7968 7969 return 0; 7970 } 7971 7972 /** 7973 * megasas_mgmt_fasync - Async notifier registration from applications 7974 * 7975 * This function adds the calling process to a driver global queue. When an 7976 * event occurs, SIGIO will be sent to all processes in this queue. 7977 */ 7978 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 7979 { 7980 int rc; 7981 7982 mutex_lock(&megasas_async_queue_mutex); 7983 7984 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 7985 7986 mutex_unlock(&megasas_async_queue_mutex); 7987 7988 if (rc >= 0) { 7989 /* For sanity check when we get ioctl */ 7990 filep->private_data = filep; 7991 return 0; 7992 } 7993 7994 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 7995 7996 return rc; 7997 } 7998 7999 /** 8000 * megasas_mgmt_poll - char node "poll" entry point 8001 * */ 8002 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) 8003 { 8004 __poll_t mask; 8005 unsigned long flags; 8006 8007 poll_wait(file, &megasas_poll_wait, wait); 8008 spin_lock_irqsave(&poll_aen_lock, flags); 8009 if (megasas_poll_wait_aen) 8010 mask = (EPOLLIN | EPOLLRDNORM); 8011 else 8012 mask = 0; 8013 megasas_poll_wait_aen = 0; 8014 spin_unlock_irqrestore(&poll_aen_lock, flags); 8015 return mask; 8016 } 8017 8018 /* 8019 * megasas_set_crash_dump_params_ioctl: 8020 * Send CRASH_DUMP_MODE DCMD to all controllers 8021 * @cmd: MFI command frame 8022 */ 8023 8024 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 8025 { 8026 struct megasas_instance *local_instance; 8027 int i, error = 0; 8028 int crash_support; 8029 8030 crash_support = cmd->frame->dcmd.mbox.w[0]; 8031 8032 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8033 local_instance = megasas_mgmt_info.instance[i]; 8034 if (local_instance && local_instance->crash_dump_drv_support) { 8035 if ((atomic_read(&local_instance->adprecovery) == 8036 MEGASAS_HBA_OPERATIONAL) && 8037 !megasas_set_crash_dump_params(local_instance, 8038 crash_support)) { 8039 local_instance->crash_dump_app_support = 8040 crash_support; 8041 dev_info(&local_instance->pdev->dev, 8042 "Application firmware crash " 8043 "dump mode set success\n"); 8044 error = 0; 8045 } else { 8046 dev_info(&local_instance->pdev->dev, 8047 "Application firmware crash " 8048 "dump mode set failed\n"); 8049 error = -1; 8050 } 8051 } 8052 } 8053 return error; 8054 } 8055 8056 /** 8057 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 8058 * @instance: Adapter soft state 8059 * @argp: User's ioctl packet 8060 */ 8061 static int 8062 megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 8063 struct megasas_iocpacket __user * user_ioc, 8064 struct megasas_iocpacket *ioc) 8065 { 8066 struct megasas_sge64 *kern_sge64 = NULL; 8067 struct megasas_sge32 *kern_sge32 = NULL; 8068 struct megasas_cmd *cmd; 8069 void *kbuff_arr[MAX_IOCTL_SGE]; 8070 dma_addr_t buf_handle = 0; 8071 int error = 0, i; 8072 void *sense = NULL; 8073 dma_addr_t sense_handle; 8074 unsigned long *sense_ptr; 8075 u32 opcode = 0; 8076 int ret = DCMD_SUCCESS; 8077 8078 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 8079 8080 if (ioc->sge_count > MAX_IOCTL_SGE) { 8081 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 8082 ioc->sge_count, MAX_IOCTL_SGE); 8083 return -EINVAL; 8084 } 8085 8086 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || 8087 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && 8088 !instance->support_nvme_passthru) || 8089 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && 8090 !instance->support_pci_lane_margining)) { 8091 dev_err(&instance->pdev->dev, 8092 "Received invalid ioctl command 0x%x\n", 8093 ioc->frame.hdr.cmd); 8094 return -ENOTSUPP; 8095 } 8096 8097 cmd = megasas_get_cmd(instance); 8098 if (!cmd) { 8099 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 8100 return -ENOMEM; 8101 } 8102 8103 /* 8104 * User's IOCTL packet has 2 frames (maximum). Copy those two 8105 * frames into our cmd's frames. cmd->frame's context will get 8106 * overwritten when we copy from user's frames. So set that value 8107 * alone separately 8108 */ 8109 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 8110 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 8111 cmd->frame->hdr.pad_0 = 0; 8112 8113 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); 8114 8115 if (instance->consistent_mask_64bit) 8116 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | 8117 MFI_FRAME_SENSE64)); 8118 else 8119 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | 8120 MFI_FRAME_SENSE64)); 8121 8122 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) 8123 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 8124 8125 if (opcode == MR_DCMD_CTRL_SHUTDOWN) { 8126 mutex_lock(&instance->reset_mutex); 8127 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 8128 megasas_return_cmd(instance, cmd); 8129 mutex_unlock(&instance->reset_mutex); 8130 return -1; 8131 } 8132 mutex_unlock(&instance->reset_mutex); 8133 } 8134 8135 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 8136 error = megasas_set_crash_dump_params_ioctl(cmd); 8137 megasas_return_cmd(instance, cmd); 8138 return error; 8139 } 8140 8141 /* 8142 * The management interface between applications and the fw uses 8143 * MFI frames. E.g, RAID configuration changes, LD property changes 8144 * etc are accomplishes through different kinds of MFI frames. The 8145 * driver needs to care only about substituting user buffers with 8146 * kernel buffers in SGLs. The location of SGL is embedded in the 8147 * struct iocpacket itself. 8148 */ 8149 if (instance->consistent_mask_64bit) 8150 kern_sge64 = (struct megasas_sge64 *) 8151 ((unsigned long)cmd->frame + ioc->sgl_off); 8152 else 8153 kern_sge32 = (struct megasas_sge32 *) 8154 ((unsigned long)cmd->frame + ioc->sgl_off); 8155 8156 /* 8157 * For each user buffer, create a mirror buffer and copy in 8158 */ 8159 for (i = 0; i < ioc->sge_count; i++) { 8160 if (!ioc->sgl[i].iov_len) 8161 continue; 8162 8163 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 8164 ioc->sgl[i].iov_len, 8165 &buf_handle, GFP_KERNEL); 8166 if (!kbuff_arr[i]) { 8167 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 8168 "kernel SGL buffer for IOCTL\n"); 8169 error = -ENOMEM; 8170 goto out; 8171 } 8172 8173 /* 8174 * We don't change the dma_coherent_mask, so 8175 * dma_alloc_coherent only returns 32bit addresses 8176 */ 8177 if (instance->consistent_mask_64bit) { 8178 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); 8179 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8180 } else { 8181 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 8182 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8183 } 8184 8185 /* 8186 * We created a kernel buffer corresponding to the 8187 * user buffer. Now copy in from the user buffer 8188 */ 8189 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 8190 (u32) (ioc->sgl[i].iov_len))) { 8191 error = -EFAULT; 8192 goto out; 8193 } 8194 } 8195 8196 if (ioc->sense_len) { 8197 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 8198 &sense_handle, GFP_KERNEL); 8199 if (!sense) { 8200 error = -ENOMEM; 8201 goto out; 8202 } 8203 8204 sense_ptr = 8205 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); 8206 if (instance->consistent_mask_64bit) 8207 *sense_ptr = cpu_to_le64(sense_handle); 8208 else 8209 *sense_ptr = cpu_to_le32(sense_handle); 8210 } 8211 8212 /* 8213 * Set the sync_cmd flag so that the ISR knows not to complete this 8214 * cmd to the SCSI mid-layer 8215 */ 8216 cmd->sync_cmd = 1; 8217 8218 ret = megasas_issue_blocked_cmd(instance, cmd, 0); 8219 switch (ret) { 8220 case DCMD_INIT: 8221 case DCMD_BUSY: 8222 cmd->sync_cmd = 0; 8223 dev_err(&instance->pdev->dev, 8224 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", 8225 __func__, __LINE__, cmd->frame->hdr.cmd, opcode, 8226 cmd->cmd_status_drv); 8227 error = -EBUSY; 8228 goto out; 8229 } 8230 8231 cmd->sync_cmd = 0; 8232 8233 if (instance->unload == 1) { 8234 dev_info(&instance->pdev->dev, "Driver unload is in progress " 8235 "don't submit data to application\n"); 8236 goto out; 8237 } 8238 /* 8239 * copy out the kernel buffers to user buffers 8240 */ 8241 for (i = 0; i < ioc->sge_count; i++) { 8242 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 8243 ioc->sgl[i].iov_len)) { 8244 error = -EFAULT; 8245 goto out; 8246 } 8247 } 8248 8249 /* 8250 * copy out the sense 8251 */ 8252 if (ioc->sense_len) { 8253 /* 8254 * sense_ptr points to the location that has the user 8255 * sense buffer address 8256 */ 8257 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + 8258 ioc->sense_off); 8259 8260 if (copy_to_user((void __user *)((unsigned long) 8261 get_unaligned((unsigned long *)sense_ptr)), 8262 sense, ioc->sense_len)) { 8263 dev_err(&instance->pdev->dev, "Failed to copy out to user " 8264 "sense data\n"); 8265 error = -EFAULT; 8266 goto out; 8267 } 8268 } 8269 8270 /* 8271 * copy the status codes returned by the fw 8272 */ 8273 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 8274 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 8275 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 8276 error = -EFAULT; 8277 } 8278 8279 out: 8280 if (sense) { 8281 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 8282 sense, sense_handle); 8283 } 8284 8285 for (i = 0; i < ioc->sge_count; i++) { 8286 if (kbuff_arr[i]) { 8287 if (instance->consistent_mask_64bit) 8288 dma_free_coherent(&instance->pdev->dev, 8289 le32_to_cpu(kern_sge64[i].length), 8290 kbuff_arr[i], 8291 le64_to_cpu(kern_sge64[i].phys_addr)); 8292 else 8293 dma_free_coherent(&instance->pdev->dev, 8294 le32_to_cpu(kern_sge32[i].length), 8295 kbuff_arr[i], 8296 le32_to_cpu(kern_sge32[i].phys_addr)); 8297 kbuff_arr[i] = NULL; 8298 } 8299 } 8300 8301 megasas_return_cmd(instance, cmd); 8302 return error; 8303 } 8304 8305 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 8306 { 8307 struct megasas_iocpacket __user *user_ioc = 8308 (struct megasas_iocpacket __user *)arg; 8309 struct megasas_iocpacket *ioc; 8310 struct megasas_instance *instance; 8311 int error; 8312 8313 ioc = memdup_user(user_ioc, sizeof(*ioc)); 8314 if (IS_ERR(ioc)) 8315 return PTR_ERR(ioc); 8316 8317 instance = megasas_lookup_instance(ioc->host_no); 8318 if (!instance) { 8319 error = -ENODEV; 8320 goto out_kfree_ioc; 8321 } 8322 8323 /* Block ioctls in VF mode */ 8324 if (instance->requestorId && !allow_vf_ioctls) { 8325 error = -ENODEV; 8326 goto out_kfree_ioc; 8327 } 8328 8329 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8330 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 8331 error = -ENODEV; 8332 goto out_kfree_ioc; 8333 } 8334 8335 if (instance->unload == 1) { 8336 error = -ENODEV; 8337 goto out_kfree_ioc; 8338 } 8339 8340 if (down_interruptible(&instance->ioctl_sem)) { 8341 error = -ERESTARTSYS; 8342 goto out_kfree_ioc; 8343 } 8344 8345 if (megasas_wait_for_adapter_operational(instance)) { 8346 error = -ENODEV; 8347 goto out_up; 8348 } 8349 8350 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 8351 out_up: 8352 up(&instance->ioctl_sem); 8353 8354 out_kfree_ioc: 8355 kfree(ioc); 8356 return error; 8357 } 8358 8359 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 8360 { 8361 struct megasas_instance *instance; 8362 struct megasas_aen aen; 8363 int error; 8364 8365 if (file->private_data != file) { 8366 printk(KERN_DEBUG "megasas: fasync_helper was not " 8367 "called first\n"); 8368 return -EINVAL; 8369 } 8370 8371 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 8372 return -EFAULT; 8373 8374 instance = megasas_lookup_instance(aen.host_no); 8375 8376 if (!instance) 8377 return -ENODEV; 8378 8379 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8380 return -ENODEV; 8381 } 8382 8383 if (instance->unload == 1) { 8384 return -ENODEV; 8385 } 8386 8387 if (megasas_wait_for_adapter_operational(instance)) 8388 return -ENODEV; 8389 8390 mutex_lock(&instance->reset_mutex); 8391 error = megasas_register_aen(instance, aen.seq_num, 8392 aen.class_locale_word); 8393 mutex_unlock(&instance->reset_mutex); 8394 return error; 8395 } 8396 8397 /** 8398 * megasas_mgmt_ioctl - char node ioctl entry point 8399 */ 8400 static long 8401 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 8402 { 8403 switch (cmd) { 8404 case MEGASAS_IOC_FIRMWARE: 8405 return megasas_mgmt_ioctl_fw(file, arg); 8406 8407 case MEGASAS_IOC_GET_AEN: 8408 return megasas_mgmt_ioctl_aen(file, arg); 8409 } 8410 8411 return -ENOTTY; 8412 } 8413 8414 #ifdef CONFIG_COMPAT 8415 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) 8416 { 8417 struct compat_megasas_iocpacket __user *cioc = 8418 (struct compat_megasas_iocpacket __user *)arg; 8419 struct megasas_iocpacket __user *ioc = 8420 compat_alloc_user_space(sizeof(struct megasas_iocpacket)); 8421 int i; 8422 int error = 0; 8423 compat_uptr_t ptr; 8424 u32 local_sense_off; 8425 u32 local_sense_len; 8426 u32 user_sense_off; 8427 8428 if (clear_user(ioc, sizeof(*ioc))) 8429 return -EFAULT; 8430 8431 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || 8432 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || 8433 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || 8434 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || 8435 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || 8436 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) 8437 return -EFAULT; 8438 8439 /* 8440 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when 8441 * sense_len is not null, so prepare the 64bit value under 8442 * the same condition. 8443 */ 8444 if (get_user(local_sense_off, &ioc->sense_off) || 8445 get_user(local_sense_len, &ioc->sense_len) || 8446 get_user(user_sense_off, &cioc->sense_off)) 8447 return -EFAULT; 8448 8449 if (local_sense_off != user_sense_off) 8450 return -EINVAL; 8451 8452 if (local_sense_len) { 8453 void __user **sense_ioc_ptr = 8454 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); 8455 compat_uptr_t *sense_cioc_ptr = 8456 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); 8457 if (get_user(ptr, sense_cioc_ptr) || 8458 put_user(compat_ptr(ptr), sense_ioc_ptr)) 8459 return -EFAULT; 8460 } 8461 8462 for (i = 0; i < MAX_IOCTL_SGE; i++) { 8463 if (get_user(ptr, &cioc->sgl[i].iov_base) || 8464 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || 8465 copy_in_user(&ioc->sgl[i].iov_len, 8466 &cioc->sgl[i].iov_len, sizeof(compat_size_t))) 8467 return -EFAULT; 8468 } 8469 8470 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); 8471 8472 if (copy_in_user(&cioc->frame.hdr.cmd_status, 8473 &ioc->frame.hdr.cmd_status, sizeof(u8))) { 8474 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); 8475 return -EFAULT; 8476 } 8477 return error; 8478 } 8479 8480 static long 8481 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 8482 unsigned long arg) 8483 { 8484 switch (cmd) { 8485 case MEGASAS_IOC_FIRMWARE32: 8486 return megasas_mgmt_compat_ioctl_fw(file, arg); 8487 case MEGASAS_IOC_GET_AEN: 8488 return megasas_mgmt_ioctl_aen(file, arg); 8489 } 8490 8491 return -ENOTTY; 8492 } 8493 #endif 8494 8495 /* 8496 * File operations structure for management interface 8497 */ 8498 static const struct file_operations megasas_mgmt_fops = { 8499 .owner = THIS_MODULE, 8500 .open = megasas_mgmt_open, 8501 .fasync = megasas_mgmt_fasync, 8502 .unlocked_ioctl = megasas_mgmt_ioctl, 8503 .poll = megasas_mgmt_poll, 8504 #ifdef CONFIG_COMPAT 8505 .compat_ioctl = megasas_mgmt_compat_ioctl, 8506 #endif 8507 .llseek = noop_llseek, 8508 }; 8509 8510 /* 8511 * PCI hotplug support registration structure 8512 */ 8513 static struct pci_driver megasas_pci_driver = { 8514 8515 .name = "megaraid_sas", 8516 .id_table = megasas_pci_table, 8517 .probe = megasas_probe_one, 8518 .remove = megasas_detach_one, 8519 .suspend = megasas_suspend, 8520 .resume = megasas_resume, 8521 .shutdown = megasas_shutdown, 8522 }; 8523 8524 /* 8525 * Sysfs driver attributes 8526 */ 8527 static ssize_t version_show(struct device_driver *dd, char *buf) 8528 { 8529 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 8530 MEGASAS_VERSION); 8531 } 8532 static DRIVER_ATTR_RO(version); 8533 8534 static ssize_t release_date_show(struct device_driver *dd, char *buf) 8535 { 8536 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 8537 MEGASAS_RELDATE); 8538 } 8539 static DRIVER_ATTR_RO(release_date); 8540 8541 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) 8542 { 8543 return sprintf(buf, "%u\n", support_poll_for_event); 8544 } 8545 static DRIVER_ATTR_RO(support_poll_for_event); 8546 8547 static ssize_t support_device_change_show(struct device_driver *dd, char *buf) 8548 { 8549 return sprintf(buf, "%u\n", support_device_change); 8550 } 8551 static DRIVER_ATTR_RO(support_device_change); 8552 8553 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) 8554 { 8555 return sprintf(buf, "%u\n", megasas_dbg_lvl); 8556 } 8557 8558 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, 8559 size_t count) 8560 { 8561 int retval = count; 8562 8563 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 8564 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 8565 retval = -EINVAL; 8566 } 8567 return retval; 8568 } 8569 static DRIVER_ATTR_RW(dbg_lvl); 8570 8571 static ssize_t 8572 support_nvme_encapsulation_show(struct device_driver *dd, char *buf) 8573 { 8574 return sprintf(buf, "%u\n", support_nvme_encapsulation); 8575 } 8576 8577 static DRIVER_ATTR_RO(support_nvme_encapsulation); 8578 8579 static ssize_t 8580 support_pci_lane_margining_show(struct device_driver *dd, char *buf) 8581 { 8582 return sprintf(buf, "%u\n", support_pci_lane_margining); 8583 } 8584 8585 static DRIVER_ATTR_RO(support_pci_lane_margining); 8586 8587 static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 8588 { 8589 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 8590 scsi_remove_device(sdev); 8591 scsi_device_put(sdev); 8592 } 8593 8594 /** 8595 * megasas_update_device_list - Update the PD and LD device list from FW 8596 * after an AEN event notification 8597 * @instance: Adapter soft state 8598 * @event_type: Indicates type of event (PD or LD event) 8599 * 8600 * @return: Success or failure 8601 * 8602 * Issue DCMDs to Firmware to update the internal device list in driver. 8603 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 8604 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 8605 */ 8606 static 8607 int megasas_update_device_list(struct megasas_instance *instance, 8608 int event_type) 8609 { 8610 int dcmd_ret = DCMD_SUCCESS; 8611 8612 if (instance->enable_fw_dev_list) { 8613 dcmd_ret = megasas_host_device_list_query(instance, false); 8614 if (dcmd_ret != DCMD_SUCCESS) 8615 goto out; 8616 } else { 8617 if (event_type & SCAN_PD_CHANNEL) { 8618 dcmd_ret = megasas_get_pd_list(instance); 8619 8620 if (dcmd_ret != DCMD_SUCCESS) 8621 goto out; 8622 } 8623 8624 if (event_type & SCAN_VD_CHANNEL) { 8625 if (!instance->requestorId || 8626 (instance->requestorId && 8627 megasas_get_ld_vf_affiliation(instance, 0))) { 8628 dcmd_ret = megasas_ld_list_query(instance, 8629 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 8630 if (dcmd_ret != DCMD_SUCCESS) 8631 goto out; 8632 } 8633 } 8634 } 8635 8636 out: 8637 return dcmd_ret; 8638 } 8639 8640 /** 8641 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer 8642 * after an AEN event notification 8643 * @instance: Adapter soft state 8644 * @scan_type: Indicates type of devices (PD/LD) to add 8645 * @return void 8646 */ 8647 static 8648 void megasas_add_remove_devices(struct megasas_instance *instance, 8649 int scan_type) 8650 { 8651 int i, j; 8652 u16 pd_index = 0; 8653 u16 ld_index = 0; 8654 u16 channel = 0, id = 0; 8655 struct Scsi_Host *host; 8656 struct scsi_device *sdev1; 8657 struct MR_HOST_DEVICE_LIST *targetid_list = NULL; 8658 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; 8659 8660 host = instance->host; 8661 8662 if (instance->enable_fw_dev_list) { 8663 targetid_list = instance->host_device_list_buf; 8664 for (i = 0; i < targetid_list->count; i++) { 8665 targetid_entry = &targetid_list->host_device_list[i]; 8666 if (targetid_entry->flags.u.bits.is_sys_pd) { 8667 channel = le16_to_cpu(targetid_entry->target_id) / 8668 MEGASAS_MAX_DEV_PER_CHANNEL; 8669 id = le16_to_cpu(targetid_entry->target_id) % 8670 MEGASAS_MAX_DEV_PER_CHANNEL; 8671 } else { 8672 channel = MEGASAS_MAX_PD_CHANNELS + 8673 (le16_to_cpu(targetid_entry->target_id) / 8674 MEGASAS_MAX_DEV_PER_CHANNEL); 8675 id = le16_to_cpu(targetid_entry->target_id) % 8676 MEGASAS_MAX_DEV_PER_CHANNEL; 8677 } 8678 sdev1 = scsi_device_lookup(host, channel, id, 0); 8679 if (!sdev1) { 8680 scsi_add_device(host, channel, id, 0); 8681 } else { 8682 scsi_device_put(sdev1); 8683 } 8684 } 8685 } 8686 8687 if (scan_type & SCAN_PD_CHANNEL) { 8688 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 8689 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8690 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; 8691 sdev1 = scsi_device_lookup(host, i, j, 0); 8692 if (instance->pd_list[pd_index].driveState == 8693 MR_PD_STATE_SYSTEM) { 8694 if (!sdev1) 8695 scsi_add_device(host, i, j, 0); 8696 else 8697 scsi_device_put(sdev1); 8698 } else { 8699 if (sdev1) 8700 megasas_remove_scsi_device(sdev1); 8701 } 8702 } 8703 } 8704 } 8705 8706 if (scan_type & SCAN_VD_CHANNEL) { 8707 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 8708 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8709 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 8710 sdev1 = scsi_device_lookup(host, 8711 MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8712 if (instance->ld_ids[ld_index] != 0xff) { 8713 if (!sdev1) 8714 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8715 else 8716 scsi_device_put(sdev1); 8717 } else { 8718 if (sdev1) 8719 megasas_remove_scsi_device(sdev1); 8720 } 8721 } 8722 } 8723 } 8724 8725 } 8726 8727 static void 8728 megasas_aen_polling(struct work_struct *work) 8729 { 8730 struct megasas_aen_event *ev = 8731 container_of(work, struct megasas_aen_event, hotplug_work.work); 8732 struct megasas_instance *instance = ev->instance; 8733 union megasas_evt_class_locale class_locale; 8734 int event_type = 0; 8735 u32 seq_num; 8736 int error; 8737 u8 dcmd_ret = DCMD_SUCCESS; 8738 8739 if (!instance) { 8740 printk(KERN_ERR "invalid instance!\n"); 8741 kfree(ev); 8742 return; 8743 } 8744 8745 /* Don't run the event workqueue thread if OCR is running */ 8746 mutex_lock(&instance->reset_mutex); 8747 8748 instance->ev = NULL; 8749 if (instance->evt_detail) { 8750 megasas_decode_evt(instance); 8751 8752 switch (le32_to_cpu(instance->evt_detail->code)) { 8753 8754 case MR_EVT_PD_INSERTED: 8755 case MR_EVT_PD_REMOVED: 8756 event_type = SCAN_PD_CHANNEL; 8757 break; 8758 8759 case MR_EVT_LD_OFFLINE: 8760 case MR_EVT_CFG_CLEARED: 8761 case MR_EVT_LD_DELETED: 8762 case MR_EVT_LD_CREATED: 8763 event_type = SCAN_VD_CHANNEL; 8764 break; 8765 8766 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 8767 case MR_EVT_FOREIGN_CFG_IMPORTED: 8768 case MR_EVT_LD_STATE_CHANGE: 8769 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; 8770 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 8771 instance->host->host_no); 8772 break; 8773 8774 case MR_EVT_CTRL_PROP_CHANGED: 8775 dcmd_ret = megasas_get_ctrl_info(instance); 8776 if (dcmd_ret == DCMD_SUCCESS && 8777 instance->snapdump_wait_time) { 8778 megasas_get_snapdump_properties(instance); 8779 dev_info(&instance->pdev->dev, 8780 "Snap dump wait time\t: %d\n", 8781 instance->snapdump_wait_time); 8782 } 8783 break; 8784 default: 8785 event_type = 0; 8786 break; 8787 } 8788 } else { 8789 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 8790 mutex_unlock(&instance->reset_mutex); 8791 kfree(ev); 8792 return; 8793 } 8794 8795 if (event_type) 8796 dcmd_ret = megasas_update_device_list(instance, event_type); 8797 8798 mutex_unlock(&instance->reset_mutex); 8799 8800 if (event_type && dcmd_ret == DCMD_SUCCESS) 8801 megasas_add_remove_devices(instance, event_type); 8802 8803 if (dcmd_ret == DCMD_SUCCESS) 8804 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 8805 else 8806 seq_num = instance->last_seq_num; 8807 8808 /* Register AEN with FW for latest sequence number plus 1 */ 8809 class_locale.members.reserved = 0; 8810 class_locale.members.locale = MR_EVT_LOCALE_ALL; 8811 class_locale.members.class = MR_EVT_CLASS_DEBUG; 8812 8813 if (instance->aen_cmd != NULL) { 8814 kfree(ev); 8815 return; 8816 } 8817 8818 mutex_lock(&instance->reset_mutex); 8819 error = megasas_register_aen(instance, seq_num, 8820 class_locale.word); 8821 if (error) 8822 dev_err(&instance->pdev->dev, 8823 "register aen failed error %x\n", error); 8824 8825 mutex_unlock(&instance->reset_mutex); 8826 kfree(ev); 8827 } 8828 8829 /** 8830 * megasas_init - Driver load entry point 8831 */ 8832 static int __init megasas_init(void) 8833 { 8834 int rval; 8835 8836 /* 8837 * Booted in kdump kernel, minimize memory footprints by 8838 * disabling few features 8839 */ 8840 if (reset_devices) { 8841 msix_vectors = 1; 8842 rdpq_enable = 0; 8843 dual_qdepth_disable = 1; 8844 } 8845 8846 /* 8847 * Announce driver version and other information 8848 */ 8849 pr_info("megasas: %s\n", MEGASAS_VERSION); 8850 8851 spin_lock_init(&poll_aen_lock); 8852 8853 support_poll_for_event = 2; 8854 support_device_change = 1; 8855 support_nvme_encapsulation = true; 8856 support_pci_lane_margining = true; 8857 8858 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 8859 8860 /* 8861 * Register character device node 8862 */ 8863 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 8864 8865 if (rval < 0) { 8866 printk(KERN_DEBUG "megasas: failed to open device node\n"); 8867 return rval; 8868 } 8869 8870 megasas_mgmt_majorno = rval; 8871 8872 megasas_init_debugfs(); 8873 8874 /* 8875 * Register ourselves as PCI hotplug module 8876 */ 8877 rval = pci_register_driver(&megasas_pci_driver); 8878 8879 if (rval) { 8880 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 8881 goto err_pcidrv; 8882 } 8883 8884 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 8885 (event_log_level > MFI_EVT_CLASS_DEAD)) { 8886 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"); 8887 event_log_level = MFI_EVT_CLASS_CRITICAL; 8888 } 8889 8890 rval = driver_create_file(&megasas_pci_driver.driver, 8891 &driver_attr_version); 8892 if (rval) 8893 goto err_dcf_attr_ver; 8894 8895 rval = driver_create_file(&megasas_pci_driver.driver, 8896 &driver_attr_release_date); 8897 if (rval) 8898 goto err_dcf_rel_date; 8899 8900 rval = driver_create_file(&megasas_pci_driver.driver, 8901 &driver_attr_support_poll_for_event); 8902 if (rval) 8903 goto err_dcf_support_poll_for_event; 8904 8905 rval = driver_create_file(&megasas_pci_driver.driver, 8906 &driver_attr_dbg_lvl); 8907 if (rval) 8908 goto err_dcf_dbg_lvl; 8909 rval = driver_create_file(&megasas_pci_driver.driver, 8910 &driver_attr_support_device_change); 8911 if (rval) 8912 goto err_dcf_support_device_change; 8913 8914 rval = driver_create_file(&megasas_pci_driver.driver, 8915 &driver_attr_support_nvme_encapsulation); 8916 if (rval) 8917 goto err_dcf_support_nvme_encapsulation; 8918 8919 rval = driver_create_file(&megasas_pci_driver.driver, 8920 &driver_attr_support_pci_lane_margining); 8921 if (rval) 8922 goto err_dcf_support_pci_lane_margining; 8923 8924 return rval; 8925 8926 err_dcf_support_pci_lane_margining: 8927 driver_remove_file(&megasas_pci_driver.driver, 8928 &driver_attr_support_nvme_encapsulation); 8929 8930 err_dcf_support_nvme_encapsulation: 8931 driver_remove_file(&megasas_pci_driver.driver, 8932 &driver_attr_support_device_change); 8933 8934 err_dcf_support_device_change: 8935 driver_remove_file(&megasas_pci_driver.driver, 8936 &driver_attr_dbg_lvl); 8937 err_dcf_dbg_lvl: 8938 driver_remove_file(&megasas_pci_driver.driver, 8939 &driver_attr_support_poll_for_event); 8940 err_dcf_support_poll_for_event: 8941 driver_remove_file(&megasas_pci_driver.driver, 8942 &driver_attr_release_date); 8943 err_dcf_rel_date: 8944 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8945 err_dcf_attr_ver: 8946 pci_unregister_driver(&megasas_pci_driver); 8947 err_pcidrv: 8948 megasas_exit_debugfs(); 8949 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8950 return rval; 8951 } 8952 8953 /** 8954 * megasas_exit - Driver unload entry point 8955 */ 8956 static void __exit megasas_exit(void) 8957 { 8958 driver_remove_file(&megasas_pci_driver.driver, 8959 &driver_attr_dbg_lvl); 8960 driver_remove_file(&megasas_pci_driver.driver, 8961 &driver_attr_support_poll_for_event); 8962 driver_remove_file(&megasas_pci_driver.driver, 8963 &driver_attr_support_device_change); 8964 driver_remove_file(&megasas_pci_driver.driver, 8965 &driver_attr_release_date); 8966 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8967 driver_remove_file(&megasas_pci_driver.driver, 8968 &driver_attr_support_nvme_encapsulation); 8969 driver_remove_file(&megasas_pci_driver.driver, 8970 &driver_attr_support_pci_lane_margining); 8971 8972 pci_unregister_driver(&megasas_pci_driver); 8973 megasas_exit_debugfs(); 8974 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8975 } 8976 8977 module_init(megasas_init); 8978 module_exit(megasas_exit); 8979