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 static 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 static 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; 205 206 void 207 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 208 u8 alt_status); 209 static u32 210 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance); 211 static int 212 megasas_adp_reset_gen2(struct megasas_instance *instance, 213 struct megasas_register_set __iomem *reg_set); 214 static irqreturn_t megasas_isr(int irq, void *devp); 215 static u32 216 megasas_init_adapter_mfi(struct megasas_instance *instance); 217 u32 218 megasas_build_and_issue_cmd(struct megasas_instance *instance, 219 struct scsi_cmnd *scmd); 220 static void megasas_complete_cmd_dpc(unsigned long instance_addr); 221 int 222 wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, 223 int seconds); 224 void megasas_fusion_ocr_wq(struct work_struct *work); 225 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 226 int initial); 227 static int 228 megasas_set_dma_mask(struct megasas_instance *instance); 229 static int 230 megasas_alloc_ctrl_mem(struct megasas_instance *instance); 231 static inline void 232 megasas_free_ctrl_mem(struct megasas_instance *instance); 233 static inline int 234 megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance); 235 static inline void 236 megasas_free_ctrl_dma_buffers(struct megasas_instance *instance); 237 static inline void 238 megasas_init_ctrl_params(struct megasas_instance *instance); 239 240 u32 megasas_readl(struct megasas_instance *instance, 241 const volatile void __iomem *addr) 242 { 243 u32 i = 0, ret_val; 244 /* 245 * Due to a HW errata in Aero controllers, reads to certain 246 * Fusion registers could intermittently return all zeroes. 247 * This behavior is transient in nature and subsequent reads will 248 * return valid value. As a workaround in driver, retry readl for 249 * upto three times until a non-zero value is read. 250 */ 251 if (instance->adapter_type == AERO_SERIES) { 252 do { 253 ret_val = readl(addr); 254 i++; 255 } while (ret_val == 0 && i < 3); 256 return ret_val; 257 } else { 258 return readl(addr); 259 } 260 } 261 262 /** 263 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs 264 * @instance: Adapter soft state 265 * @dcmd: DCMD frame inside MFI command 266 * @dma_addr: DMA address of buffer to be passed to FW 267 * @dma_len: Length of DMA buffer to be passed to FW 268 * @return: void 269 */ 270 void megasas_set_dma_settings(struct megasas_instance *instance, 271 struct megasas_dcmd_frame *dcmd, 272 dma_addr_t dma_addr, u32 dma_len) 273 { 274 if (instance->consistent_mask_64bit) { 275 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr); 276 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len); 277 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64); 278 279 } else { 280 dcmd->sgl.sge32[0].phys_addr = 281 cpu_to_le32(lower_32_bits(dma_addr)); 282 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len); 283 dcmd->flags = cpu_to_le16(dcmd->flags); 284 } 285 } 286 287 static void 288 megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 289 { 290 instance->instancet->fire_cmd(instance, 291 cmd->frame_phys_addr, 0, instance->reg_set); 292 return; 293 } 294 295 /** 296 * megasas_get_cmd - Get a command from the free pool 297 * @instance: Adapter soft state 298 * 299 * Returns a free command from the pool 300 */ 301 struct megasas_cmd *megasas_get_cmd(struct megasas_instance 302 *instance) 303 { 304 unsigned long flags; 305 struct megasas_cmd *cmd = NULL; 306 307 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 308 309 if (!list_empty(&instance->cmd_pool)) { 310 cmd = list_entry((&instance->cmd_pool)->next, 311 struct megasas_cmd, list); 312 list_del_init(&cmd->list); 313 } else { 314 dev_err(&instance->pdev->dev, "Command pool empty!\n"); 315 } 316 317 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 318 return cmd; 319 } 320 321 /** 322 * megasas_return_cmd - Return a cmd to free command pool 323 * @instance: Adapter soft state 324 * @cmd: Command packet to be returned to free command pool 325 */ 326 void 327 megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 328 { 329 unsigned long flags; 330 u32 blk_tags; 331 struct megasas_cmd_fusion *cmd_fusion; 332 struct fusion_context *fusion = instance->ctrl_context; 333 334 /* This flag is used only for fusion adapter. 335 * Wait for Interrupt for Polled mode DCMD 336 */ 337 if (cmd->flags & DRV_DCMD_POLLED_MODE) 338 return; 339 340 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 341 342 if (fusion) { 343 blk_tags = instance->max_scsi_cmds + cmd->index; 344 cmd_fusion = fusion->cmd_list[blk_tags]; 345 megasas_return_cmd_fusion(instance, cmd_fusion); 346 } 347 cmd->scmd = NULL; 348 cmd->frame_count = 0; 349 cmd->flags = 0; 350 memset(cmd->frame, 0, instance->mfi_frame_size); 351 cmd->frame->io.context = cpu_to_le32(cmd->index); 352 if (!fusion && reset_devices) 353 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 354 list_add(&cmd->list, (&instance->cmd_pool)->next); 355 356 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 357 358 } 359 360 static const char * 361 format_timestamp(uint32_t timestamp) 362 { 363 static char buffer[32]; 364 365 if ((timestamp & 0xff000000) == 0xff000000) 366 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & 367 0x00ffffff); 368 else 369 snprintf(buffer, sizeof(buffer), "%us", timestamp); 370 return buffer; 371 } 372 373 static const char * 374 format_class(int8_t class) 375 { 376 static char buffer[6]; 377 378 switch (class) { 379 case MFI_EVT_CLASS_DEBUG: 380 return "debug"; 381 case MFI_EVT_CLASS_PROGRESS: 382 return "progress"; 383 case MFI_EVT_CLASS_INFO: 384 return "info"; 385 case MFI_EVT_CLASS_WARNING: 386 return "WARN"; 387 case MFI_EVT_CLASS_CRITICAL: 388 return "CRIT"; 389 case MFI_EVT_CLASS_FATAL: 390 return "FATAL"; 391 case MFI_EVT_CLASS_DEAD: 392 return "DEAD"; 393 default: 394 snprintf(buffer, sizeof(buffer), "%d", class); 395 return buffer; 396 } 397 } 398 399 /** 400 * megasas_decode_evt: Decode FW AEN event and print critical event 401 * for information. 402 * @instance: Adapter soft state 403 */ 404 static void 405 megasas_decode_evt(struct megasas_instance *instance) 406 { 407 struct megasas_evt_detail *evt_detail = instance->evt_detail; 408 union megasas_evt_class_locale class_locale; 409 class_locale.word = le32_to_cpu(evt_detail->cl.word); 410 411 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 412 (event_log_level > MFI_EVT_CLASS_DEAD)) { 413 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"); 414 event_log_level = MFI_EVT_CLASS_CRITICAL; 415 } 416 417 if (class_locale.members.class >= event_log_level) 418 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", 419 le32_to_cpu(evt_detail->seq_num), 420 format_timestamp(le32_to_cpu(evt_detail->time_stamp)), 421 (class_locale.members.locale), 422 format_class(class_locale.members.class), 423 evt_detail->description); 424 } 425 426 /* 427 * The following functions are defined for xscale 428 * (deviceid : 1064R, PERC5) controllers 429 */ 430 431 /** 432 * megasas_enable_intr_xscale - Enables interrupts 433 * @instance: Adapter soft state 434 */ 435 static inline void 436 megasas_enable_intr_xscale(struct megasas_instance *instance) 437 { 438 struct megasas_register_set __iomem *regs; 439 440 regs = instance->reg_set; 441 writel(0, &(regs)->outbound_intr_mask); 442 443 /* Dummy readl to force pci flush */ 444 readl(®s->outbound_intr_mask); 445 } 446 447 /** 448 * megasas_disable_intr_xscale -Disables interrupt 449 * @instance: Adapter soft state 450 */ 451 static inline void 452 megasas_disable_intr_xscale(struct megasas_instance *instance) 453 { 454 struct megasas_register_set __iomem *regs; 455 u32 mask = 0x1f; 456 457 regs = instance->reg_set; 458 writel(mask, ®s->outbound_intr_mask); 459 /* Dummy readl to force pci flush */ 460 readl(®s->outbound_intr_mask); 461 } 462 463 /** 464 * megasas_read_fw_status_reg_xscale - returns the current FW status value 465 * @instance: Adapter soft state 466 */ 467 static u32 468 megasas_read_fw_status_reg_xscale(struct megasas_instance *instance) 469 { 470 return readl(&instance->reg_set->outbound_msg_0); 471 } 472 /** 473 * megasas_clear_interrupt_xscale - Check & clear interrupt 474 * @instance: Adapter soft state 475 */ 476 static int 477 megasas_clear_intr_xscale(struct megasas_instance *instance) 478 { 479 u32 status; 480 u32 mfiStatus = 0; 481 struct megasas_register_set __iomem *regs; 482 regs = instance->reg_set; 483 484 /* 485 * Check if it is our interrupt 486 */ 487 status = readl(®s->outbound_intr_status); 488 489 if (status & MFI_OB_INTR_STATUS_MASK) 490 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 491 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) 492 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 493 494 /* 495 * Clear the interrupt by writing back the same value 496 */ 497 if (mfiStatus) 498 writel(status, ®s->outbound_intr_status); 499 500 /* Dummy readl to force pci flush */ 501 readl(®s->outbound_intr_status); 502 503 return mfiStatus; 504 } 505 506 /** 507 * megasas_fire_cmd_xscale - Sends command to the FW 508 * @instance: Adapter soft state 509 * @frame_phys_addr : Physical address of cmd 510 * @frame_count : Number of frames for the command 511 * @regs : MFI register set 512 */ 513 static inline void 514 megasas_fire_cmd_xscale(struct megasas_instance *instance, 515 dma_addr_t frame_phys_addr, 516 u32 frame_count, 517 struct megasas_register_set __iomem *regs) 518 { 519 unsigned long flags; 520 521 spin_lock_irqsave(&instance->hba_lock, flags); 522 writel((frame_phys_addr >> 3)|(frame_count), 523 &(regs)->inbound_queue_port); 524 spin_unlock_irqrestore(&instance->hba_lock, flags); 525 } 526 527 /** 528 * megasas_adp_reset_xscale - For controller reset 529 * @instance: Adapter soft state 530 * @regs: MFI register set 531 */ 532 static int 533 megasas_adp_reset_xscale(struct megasas_instance *instance, 534 struct megasas_register_set __iomem *regs) 535 { 536 u32 i; 537 u32 pcidata; 538 539 writel(MFI_ADP_RESET, ®s->inbound_doorbell); 540 541 for (i = 0; i < 3; i++) 542 msleep(1000); /* sleep for 3 secs */ 543 pcidata = 0; 544 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); 545 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); 546 if (pcidata & 0x2) { 547 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); 548 pcidata &= ~0x2; 549 pci_write_config_dword(instance->pdev, 550 MFI_1068_PCSR_OFFSET, pcidata); 551 552 for (i = 0; i < 2; i++) 553 msleep(1000); /* need to wait 2 secs again */ 554 555 pcidata = 0; 556 pci_read_config_dword(instance->pdev, 557 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); 558 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); 559 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { 560 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); 561 pcidata = 0; 562 pci_write_config_dword(instance->pdev, 563 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); 564 } 565 } 566 return 0; 567 } 568 569 /** 570 * megasas_check_reset_xscale - For controller reset check 571 * @instance: Adapter soft state 572 * @regs: MFI register set 573 */ 574 static int 575 megasas_check_reset_xscale(struct megasas_instance *instance, 576 struct megasas_register_set __iomem *regs) 577 { 578 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && 579 (le32_to_cpu(*instance->consumer) == 580 MEGASAS_ADPRESET_INPROG_SIGN)) 581 return 1; 582 return 0; 583 } 584 585 static struct megasas_instance_template megasas_instance_template_xscale = { 586 587 .fire_cmd = megasas_fire_cmd_xscale, 588 .enable_intr = megasas_enable_intr_xscale, 589 .disable_intr = megasas_disable_intr_xscale, 590 .clear_intr = megasas_clear_intr_xscale, 591 .read_fw_status_reg = megasas_read_fw_status_reg_xscale, 592 .adp_reset = megasas_adp_reset_xscale, 593 .check_reset = megasas_check_reset_xscale, 594 .service_isr = megasas_isr, 595 .tasklet = megasas_complete_cmd_dpc, 596 .init_adapter = megasas_init_adapter_mfi, 597 .build_and_issue_cmd = megasas_build_and_issue_cmd, 598 .issue_dcmd = megasas_issue_dcmd, 599 }; 600 601 /* 602 * This is the end of set of functions & definitions specific 603 * to xscale (deviceid : 1064R, PERC5) controllers 604 */ 605 606 /* 607 * The following functions are defined for ppc (deviceid : 0x60) 608 * controllers 609 */ 610 611 /** 612 * megasas_enable_intr_ppc - Enables interrupts 613 * @instance: Adapter soft state 614 */ 615 static inline void 616 megasas_enable_intr_ppc(struct megasas_instance *instance) 617 { 618 struct megasas_register_set __iomem *regs; 619 620 regs = instance->reg_set; 621 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 622 623 writel(~0x80000000, &(regs)->outbound_intr_mask); 624 625 /* Dummy readl to force pci flush */ 626 readl(®s->outbound_intr_mask); 627 } 628 629 /** 630 * megasas_disable_intr_ppc - Disable interrupt 631 * @instance: Adapter soft state 632 */ 633 static inline void 634 megasas_disable_intr_ppc(struct megasas_instance *instance) 635 { 636 struct megasas_register_set __iomem *regs; 637 u32 mask = 0xFFFFFFFF; 638 639 regs = instance->reg_set; 640 writel(mask, ®s->outbound_intr_mask); 641 /* Dummy readl to force pci flush */ 642 readl(®s->outbound_intr_mask); 643 } 644 645 /** 646 * megasas_read_fw_status_reg_ppc - returns the current FW status value 647 * @instance: Adapter soft state 648 */ 649 static u32 650 megasas_read_fw_status_reg_ppc(struct megasas_instance *instance) 651 { 652 return readl(&instance->reg_set->outbound_scratch_pad_0); 653 } 654 655 /** 656 * megasas_clear_interrupt_ppc - Check & clear interrupt 657 * @instance: Adapter soft state 658 */ 659 static int 660 megasas_clear_intr_ppc(struct megasas_instance *instance) 661 { 662 u32 status, mfiStatus = 0; 663 struct megasas_register_set __iomem *regs; 664 regs = instance->reg_set; 665 666 /* 667 * Check if it is our interrupt 668 */ 669 status = readl(®s->outbound_intr_status); 670 671 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) 672 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 673 674 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) 675 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 676 677 /* 678 * Clear the interrupt by writing back the same value 679 */ 680 writel(status, ®s->outbound_doorbell_clear); 681 682 /* Dummy readl to force pci flush */ 683 readl(®s->outbound_doorbell_clear); 684 685 return mfiStatus; 686 } 687 688 /** 689 * megasas_fire_cmd_ppc - Sends command to the FW 690 * @instance: Adapter soft state 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 * @instance: Adapter soft state 712 * @regs: MFI register set 713 */ 714 static int 715 megasas_check_reset_ppc(struct megasas_instance *instance, 716 struct megasas_register_set __iomem *regs) 717 { 718 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 719 return 1; 720 721 return 0; 722 } 723 724 static struct megasas_instance_template megasas_instance_template_ppc = { 725 726 .fire_cmd = megasas_fire_cmd_ppc, 727 .enable_intr = megasas_enable_intr_ppc, 728 .disable_intr = megasas_disable_intr_ppc, 729 .clear_intr = megasas_clear_intr_ppc, 730 .read_fw_status_reg = megasas_read_fw_status_reg_ppc, 731 .adp_reset = megasas_adp_reset_xscale, 732 .check_reset = megasas_check_reset_ppc, 733 .service_isr = megasas_isr, 734 .tasklet = megasas_complete_cmd_dpc, 735 .init_adapter = megasas_init_adapter_mfi, 736 .build_and_issue_cmd = megasas_build_and_issue_cmd, 737 .issue_dcmd = megasas_issue_dcmd, 738 }; 739 740 /** 741 * megasas_enable_intr_skinny - Enables interrupts 742 * @instance: Adapter soft state 743 */ 744 static inline void 745 megasas_enable_intr_skinny(struct megasas_instance *instance) 746 { 747 struct megasas_register_set __iomem *regs; 748 749 regs = instance->reg_set; 750 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); 751 752 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 753 754 /* Dummy readl to force pci flush */ 755 readl(®s->outbound_intr_mask); 756 } 757 758 /** 759 * megasas_disable_intr_skinny - Disables interrupt 760 * @instance: Adapter soft state 761 */ 762 static inline void 763 megasas_disable_intr_skinny(struct megasas_instance *instance) 764 { 765 struct megasas_register_set __iomem *regs; 766 u32 mask = 0xFFFFFFFF; 767 768 regs = instance->reg_set; 769 writel(mask, ®s->outbound_intr_mask); 770 /* Dummy readl to force pci flush */ 771 readl(®s->outbound_intr_mask); 772 } 773 774 /** 775 * megasas_read_fw_status_reg_skinny - returns the current FW status value 776 * @instance: Adapter soft state 777 */ 778 static u32 779 megasas_read_fw_status_reg_skinny(struct megasas_instance *instance) 780 { 781 return readl(&instance->reg_set->outbound_scratch_pad_0); 782 } 783 784 /** 785 * megasas_clear_interrupt_skinny - Check & clear interrupt 786 * @instance: Adapter soft state 787 */ 788 static int 789 megasas_clear_intr_skinny(struct megasas_instance *instance) 790 { 791 u32 status; 792 u32 mfiStatus = 0; 793 struct megasas_register_set __iomem *regs; 794 regs = instance->reg_set; 795 796 /* 797 * Check if it is our interrupt 798 */ 799 status = readl(®s->outbound_intr_status); 800 801 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { 802 return 0; 803 } 804 805 /* 806 * Check if it is our interrupt 807 */ 808 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) == 809 MFI_STATE_FAULT) { 810 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 811 } else 812 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 813 814 /* 815 * Clear the interrupt by writing back the same value 816 */ 817 writel(status, ®s->outbound_intr_status); 818 819 /* 820 * dummy read to flush PCI 821 */ 822 readl(®s->outbound_intr_status); 823 824 return mfiStatus; 825 } 826 827 /** 828 * megasas_fire_cmd_skinny - Sends command to the FW 829 * @instance: Adapter soft state 830 * @frame_phys_addr: Physical address of cmd 831 * @frame_count: Number of frames for the command 832 * @regs: MFI register set 833 */ 834 static inline void 835 megasas_fire_cmd_skinny(struct megasas_instance *instance, 836 dma_addr_t frame_phys_addr, 837 u32 frame_count, 838 struct megasas_register_set __iomem *regs) 839 { 840 unsigned long flags; 841 842 spin_lock_irqsave(&instance->hba_lock, flags); 843 writel(upper_32_bits(frame_phys_addr), 844 &(regs)->inbound_high_queue_port); 845 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, 846 &(regs)->inbound_low_queue_port); 847 spin_unlock_irqrestore(&instance->hba_lock, flags); 848 } 849 850 /** 851 * megasas_check_reset_skinny - For controller reset check 852 * @instance: Adapter soft state 853 * @regs: MFI register set 854 */ 855 static int 856 megasas_check_reset_skinny(struct megasas_instance *instance, 857 struct megasas_register_set __iomem *regs) 858 { 859 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 860 return 1; 861 862 return 0; 863 } 864 865 static struct megasas_instance_template megasas_instance_template_skinny = { 866 867 .fire_cmd = megasas_fire_cmd_skinny, 868 .enable_intr = megasas_enable_intr_skinny, 869 .disable_intr = megasas_disable_intr_skinny, 870 .clear_intr = megasas_clear_intr_skinny, 871 .read_fw_status_reg = megasas_read_fw_status_reg_skinny, 872 .adp_reset = megasas_adp_reset_gen2, 873 .check_reset = megasas_check_reset_skinny, 874 .service_isr = megasas_isr, 875 .tasklet = megasas_complete_cmd_dpc, 876 .init_adapter = megasas_init_adapter_mfi, 877 .build_and_issue_cmd = megasas_build_and_issue_cmd, 878 .issue_dcmd = megasas_issue_dcmd, 879 }; 880 881 882 /* 883 * The following functions are defined for gen2 (deviceid : 0x78 0x79) 884 * controllers 885 */ 886 887 /** 888 * megasas_enable_intr_gen2 - Enables interrupts 889 * @instance: Adapter soft state 890 */ 891 static inline void 892 megasas_enable_intr_gen2(struct megasas_instance *instance) 893 { 894 struct megasas_register_set __iomem *regs; 895 896 regs = instance->reg_set; 897 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); 898 899 /* write ~0x00000005 (4 & 1) to the intr mask*/ 900 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); 901 902 /* Dummy readl to force pci flush */ 903 readl(®s->outbound_intr_mask); 904 } 905 906 /** 907 * megasas_disable_intr_gen2 - Disables interrupt 908 * @instance: Adapter soft state 909 */ 910 static inline void 911 megasas_disable_intr_gen2(struct megasas_instance *instance) 912 { 913 struct megasas_register_set __iomem *regs; 914 u32 mask = 0xFFFFFFFF; 915 916 regs = instance->reg_set; 917 writel(mask, ®s->outbound_intr_mask); 918 /* Dummy readl to force pci flush */ 919 readl(®s->outbound_intr_mask); 920 } 921 922 /** 923 * megasas_read_fw_status_reg_gen2 - returns the current FW status value 924 * @instance: Adapter soft state 925 */ 926 static u32 927 megasas_read_fw_status_reg_gen2(struct megasas_instance *instance) 928 { 929 return readl(&instance->reg_set->outbound_scratch_pad_0); 930 } 931 932 /** 933 * megasas_clear_interrupt_gen2 - Check & clear interrupt 934 * @instance: Adapter soft state 935 */ 936 static int 937 megasas_clear_intr_gen2(struct megasas_instance *instance) 938 { 939 u32 status; 940 u32 mfiStatus = 0; 941 struct megasas_register_set __iomem *regs; 942 regs = instance->reg_set; 943 944 /* 945 * Check if it is our interrupt 946 */ 947 status = readl(®s->outbound_intr_status); 948 949 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { 950 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; 951 } 952 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { 953 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; 954 } 955 956 /* 957 * Clear the interrupt by writing back the same value 958 */ 959 if (mfiStatus) 960 writel(status, ®s->outbound_doorbell_clear); 961 962 /* Dummy readl to force pci flush */ 963 readl(®s->outbound_intr_status); 964 965 return mfiStatus; 966 } 967 968 /** 969 * megasas_fire_cmd_gen2 - Sends command to the FW 970 * @instance: Adapter soft state 971 * @frame_phys_addr: Physical address of cmd 972 * @frame_count: Number of frames for the command 973 * @regs: MFI register set 974 */ 975 static inline void 976 megasas_fire_cmd_gen2(struct megasas_instance *instance, 977 dma_addr_t frame_phys_addr, 978 u32 frame_count, 979 struct megasas_register_set __iomem *regs) 980 { 981 unsigned long flags; 982 983 spin_lock_irqsave(&instance->hba_lock, flags); 984 writel((frame_phys_addr | (frame_count<<1))|1, 985 &(regs)->inbound_queue_port); 986 spin_unlock_irqrestore(&instance->hba_lock, flags); 987 } 988 989 /** 990 * megasas_adp_reset_gen2 - For controller reset 991 * @instance: Adapter soft state 992 * @reg_set: MFI register set 993 */ 994 static int 995 megasas_adp_reset_gen2(struct megasas_instance *instance, 996 struct megasas_register_set __iomem *reg_set) 997 { 998 u32 retry = 0 ; 999 u32 HostDiag; 1000 u32 __iomem *seq_offset = ®_set->seq_offset; 1001 u32 __iomem *hostdiag_offset = ®_set->host_diag; 1002 1003 if (instance->instancet == &megasas_instance_template_skinny) { 1004 seq_offset = ®_set->fusion_seq_offset; 1005 hostdiag_offset = ®_set->fusion_host_diag; 1006 } 1007 1008 writel(0, seq_offset); 1009 writel(4, seq_offset); 1010 writel(0xb, seq_offset); 1011 writel(2, seq_offset); 1012 writel(7, seq_offset); 1013 writel(0xd, seq_offset); 1014 1015 msleep(1000); 1016 1017 HostDiag = (u32)readl(hostdiag_offset); 1018 1019 while (!(HostDiag & DIAG_WRITE_ENABLE)) { 1020 msleep(100); 1021 HostDiag = (u32)readl(hostdiag_offset); 1022 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", 1023 retry, HostDiag); 1024 1025 if (retry++ >= 100) 1026 return 1; 1027 1028 } 1029 1030 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); 1031 1032 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); 1033 1034 ssleep(10); 1035 1036 HostDiag = (u32)readl(hostdiag_offset); 1037 while (HostDiag & DIAG_RESET_ADAPTER) { 1038 msleep(100); 1039 HostDiag = (u32)readl(hostdiag_offset); 1040 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", 1041 retry, HostDiag); 1042 1043 if (retry++ >= 1000) 1044 return 1; 1045 1046 } 1047 return 0; 1048 } 1049 1050 /** 1051 * megasas_check_reset_gen2 - For controller reset check 1052 * @instance: Adapter soft state 1053 * @regs: MFI register set 1054 */ 1055 static int 1056 megasas_check_reset_gen2(struct megasas_instance *instance, 1057 struct megasas_register_set __iomem *regs) 1058 { 1059 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1060 return 1; 1061 1062 return 0; 1063 } 1064 1065 static struct megasas_instance_template megasas_instance_template_gen2 = { 1066 1067 .fire_cmd = megasas_fire_cmd_gen2, 1068 .enable_intr = megasas_enable_intr_gen2, 1069 .disable_intr = megasas_disable_intr_gen2, 1070 .clear_intr = megasas_clear_intr_gen2, 1071 .read_fw_status_reg = megasas_read_fw_status_reg_gen2, 1072 .adp_reset = megasas_adp_reset_gen2, 1073 .check_reset = megasas_check_reset_gen2, 1074 .service_isr = megasas_isr, 1075 .tasklet = megasas_complete_cmd_dpc, 1076 .init_adapter = megasas_init_adapter_mfi, 1077 .build_and_issue_cmd = megasas_build_and_issue_cmd, 1078 .issue_dcmd = megasas_issue_dcmd, 1079 }; 1080 1081 /* 1082 * This is the end of set of functions & definitions 1083 * specific to gen2 (deviceid : 0x78, 0x79) controllers 1084 */ 1085 1086 /* 1087 * Template added for TB (Fusion) 1088 */ 1089 extern struct megasas_instance_template megasas_instance_template_fusion; 1090 1091 /** 1092 * megasas_issue_polled - Issues a polling command 1093 * @instance: Adapter soft state 1094 * @cmd: Command packet to be issued 1095 * 1096 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. 1097 */ 1098 int 1099 megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) 1100 { 1101 struct megasas_header *frame_hdr = &cmd->frame->hdr; 1102 1103 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; 1104 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); 1105 1106 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1107 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1108 __func__, __LINE__); 1109 return DCMD_INIT; 1110 } 1111 1112 instance->instancet->issue_dcmd(instance, cmd); 1113 1114 return wait_and_poll(instance, cmd, instance->requestorId ? 1115 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); 1116 } 1117 1118 /** 1119 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds 1120 * @instance: Adapter soft state 1121 * @cmd: Command to be issued 1122 * @timeout: Timeout in seconds 1123 * 1124 * This function waits on an event for the command to be returned from ISR. 1125 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1126 * Used to issue ioctl commands. 1127 */ 1128 int 1129 megasas_issue_blocked_cmd(struct megasas_instance *instance, 1130 struct megasas_cmd *cmd, int timeout) 1131 { 1132 int ret = 0; 1133 cmd->cmd_status_drv = DCMD_INIT; 1134 1135 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1136 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1137 __func__, __LINE__); 1138 return DCMD_INIT; 1139 } 1140 1141 instance->instancet->issue_dcmd(instance, cmd); 1142 1143 if (timeout) { 1144 ret = wait_event_timeout(instance->int_cmd_wait_q, 1145 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1146 if (!ret) { 1147 dev_err(&instance->pdev->dev, 1148 "DCMD(opcode: 0x%x) is timed out, func:%s\n", 1149 cmd->frame->dcmd.opcode, __func__); 1150 return DCMD_TIMEOUT; 1151 } 1152 } else 1153 wait_event(instance->int_cmd_wait_q, 1154 cmd->cmd_status_drv != DCMD_INIT); 1155 1156 return cmd->cmd_status_drv; 1157 } 1158 1159 /** 1160 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd 1161 * @instance: Adapter soft state 1162 * @cmd_to_abort: Previously issued cmd to be aborted 1163 * @timeout: Timeout in seconds 1164 * 1165 * MFI firmware can abort previously issued AEN comamnd (automatic event 1166 * notification). The megasas_issue_blocked_abort_cmd() issues such abort 1167 * cmd and waits for return status. 1168 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs 1169 */ 1170 static int 1171 megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, 1172 struct megasas_cmd *cmd_to_abort, int timeout) 1173 { 1174 struct megasas_cmd *cmd; 1175 struct megasas_abort_frame *abort_fr; 1176 int ret = 0; 1177 u32 opcode; 1178 1179 cmd = megasas_get_cmd(instance); 1180 1181 if (!cmd) 1182 return -1; 1183 1184 abort_fr = &cmd->frame->abort; 1185 1186 /* 1187 * Prepare and issue the abort frame 1188 */ 1189 abort_fr->cmd = MFI_CMD_ABORT; 1190 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; 1191 abort_fr->flags = cpu_to_le16(0); 1192 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); 1193 abort_fr->abort_mfi_phys_addr_lo = 1194 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); 1195 abort_fr->abort_mfi_phys_addr_hi = 1196 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); 1197 1198 cmd->sync_cmd = 1; 1199 cmd->cmd_status_drv = DCMD_INIT; 1200 1201 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1202 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 1203 __func__, __LINE__); 1204 return DCMD_INIT; 1205 } 1206 1207 instance->instancet->issue_dcmd(instance, cmd); 1208 1209 if (timeout) { 1210 ret = wait_event_timeout(instance->abort_cmd_wait_q, 1211 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ); 1212 if (!ret) { 1213 opcode = cmd_to_abort->frame->dcmd.opcode; 1214 dev_err(&instance->pdev->dev, 1215 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n", 1216 opcode, __func__); 1217 return DCMD_TIMEOUT; 1218 } 1219 } else 1220 wait_event(instance->abort_cmd_wait_q, 1221 cmd->cmd_status_drv != DCMD_INIT); 1222 1223 cmd->sync_cmd = 0; 1224 1225 megasas_return_cmd(instance, cmd); 1226 return cmd->cmd_status_drv; 1227 } 1228 1229 /** 1230 * megasas_make_sgl32 - Prepares 32-bit SGL 1231 * @instance: Adapter soft state 1232 * @scp: SCSI command from the mid-layer 1233 * @mfi_sgl: SGL to be filled in 1234 * 1235 * If successful, this function returns the number of SG elements. Otherwise, 1236 * it returnes -1. 1237 */ 1238 static int 1239 megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, 1240 union megasas_sgl *mfi_sgl) 1241 { 1242 int i; 1243 int sge_count; 1244 struct scatterlist *os_sgl; 1245 1246 sge_count = scsi_dma_map(scp); 1247 BUG_ON(sge_count < 0); 1248 1249 if (sge_count) { 1250 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1251 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1252 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); 1253 } 1254 } 1255 return sge_count; 1256 } 1257 1258 /** 1259 * megasas_make_sgl64 - Prepares 64-bit SGL 1260 * @instance: Adapter soft state 1261 * @scp: SCSI command from the mid-layer 1262 * @mfi_sgl: SGL to be filled in 1263 * 1264 * If successful, this function returns the number of SG elements. Otherwise, 1265 * it returnes -1. 1266 */ 1267 static int 1268 megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, 1269 union megasas_sgl *mfi_sgl) 1270 { 1271 int i; 1272 int sge_count; 1273 struct scatterlist *os_sgl; 1274 1275 sge_count = scsi_dma_map(scp); 1276 BUG_ON(sge_count < 0); 1277 1278 if (sge_count) { 1279 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1280 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); 1281 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); 1282 } 1283 } 1284 return sge_count; 1285 } 1286 1287 /** 1288 * megasas_make_sgl_skinny - Prepares IEEE SGL 1289 * @instance: Adapter soft state 1290 * @scp: SCSI command from the mid-layer 1291 * @mfi_sgl: SGL to be filled in 1292 * 1293 * If successful, this function returns the number of SG elements. Otherwise, 1294 * it returnes -1. 1295 */ 1296 static int 1297 megasas_make_sgl_skinny(struct megasas_instance *instance, 1298 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) 1299 { 1300 int i; 1301 int sge_count; 1302 struct scatterlist *os_sgl; 1303 1304 sge_count = scsi_dma_map(scp); 1305 1306 if (sge_count) { 1307 scsi_for_each_sg(scp, os_sgl, sge_count, i) { 1308 mfi_sgl->sge_skinny[i].length = 1309 cpu_to_le32(sg_dma_len(os_sgl)); 1310 mfi_sgl->sge_skinny[i].phys_addr = 1311 cpu_to_le64(sg_dma_address(os_sgl)); 1312 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); 1313 } 1314 } 1315 return sge_count; 1316 } 1317 1318 /** 1319 * megasas_get_frame_count - Computes the number of frames 1320 * @frame_type : type of frame- io or pthru frame 1321 * @sge_count : number of sg elements 1322 * 1323 * Returns the number of frames required for numnber of sge's (sge_count) 1324 */ 1325 1326 static u32 megasas_get_frame_count(struct megasas_instance *instance, 1327 u8 sge_count, u8 frame_type) 1328 { 1329 int num_cnt; 1330 int sge_bytes; 1331 u32 sge_sz; 1332 u32 frame_count = 0; 1333 1334 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : 1335 sizeof(struct megasas_sge32); 1336 1337 if (instance->flag_ieee) { 1338 sge_sz = sizeof(struct megasas_sge_skinny); 1339 } 1340 1341 /* 1342 * Main frame can contain 2 SGEs for 64-bit SGLs and 1343 * 3 SGEs for 32-bit SGLs for ldio & 1344 * 1 SGEs for 64-bit SGLs and 1345 * 2 SGEs for 32-bit SGLs for pthru frame 1346 */ 1347 if (unlikely(frame_type == PTHRU_FRAME)) { 1348 if (instance->flag_ieee == 1) { 1349 num_cnt = sge_count - 1; 1350 } else if (IS_DMA64) 1351 num_cnt = sge_count - 1; 1352 else 1353 num_cnt = sge_count - 2; 1354 } else { 1355 if (instance->flag_ieee == 1) { 1356 num_cnt = sge_count - 1; 1357 } else if (IS_DMA64) 1358 num_cnt = sge_count - 2; 1359 else 1360 num_cnt = sge_count - 3; 1361 } 1362 1363 if (num_cnt > 0) { 1364 sge_bytes = sge_sz * num_cnt; 1365 1366 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + 1367 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; 1368 } 1369 /* Main frame */ 1370 frame_count += 1; 1371 1372 if (frame_count > 7) 1373 frame_count = 8; 1374 return frame_count; 1375 } 1376 1377 /** 1378 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command 1379 * @instance: Adapter soft state 1380 * @scp: SCSI command 1381 * @cmd: Command to be prepared in 1382 * 1383 * This function prepares CDB commands. These are typcially pass-through 1384 * commands to the devices. 1385 */ 1386 static int 1387 megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, 1388 struct megasas_cmd *cmd) 1389 { 1390 u32 is_logical; 1391 u32 device_id; 1392 u16 flags = 0; 1393 struct megasas_pthru_frame *pthru; 1394 1395 is_logical = MEGASAS_IS_LOGICAL(scp->device); 1396 device_id = MEGASAS_DEV_INDEX(scp); 1397 pthru = (struct megasas_pthru_frame *)cmd->frame; 1398 1399 if (scp->sc_data_direction == DMA_TO_DEVICE) 1400 flags = MFI_FRAME_DIR_WRITE; 1401 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1402 flags = MFI_FRAME_DIR_READ; 1403 else if (scp->sc_data_direction == DMA_NONE) 1404 flags = MFI_FRAME_DIR_NONE; 1405 1406 if (instance->flag_ieee == 1) { 1407 flags |= MFI_FRAME_IEEE; 1408 } 1409 1410 /* 1411 * Prepare the DCDB frame 1412 */ 1413 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; 1414 pthru->cmd_status = 0x0; 1415 pthru->scsi_status = 0x0; 1416 pthru->target_id = device_id; 1417 pthru->lun = scp->device->lun; 1418 pthru->cdb_len = scp->cmd_len; 1419 pthru->timeout = 0; 1420 pthru->pad_0 = 0; 1421 pthru->flags = cpu_to_le16(flags); 1422 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); 1423 1424 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); 1425 1426 /* 1427 * If the command is for the tape device, set the 1428 * pthru timeout to the os layer timeout value. 1429 */ 1430 if (scp->device->type == TYPE_TAPE) { 1431 if ((scp->request->timeout / HZ) > 0xFFFF) 1432 pthru->timeout = cpu_to_le16(0xFFFF); 1433 else 1434 pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); 1435 } 1436 1437 /* 1438 * Construct SGL 1439 */ 1440 if (instance->flag_ieee == 1) { 1441 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1442 pthru->sge_count = megasas_make_sgl_skinny(instance, scp, 1443 &pthru->sgl); 1444 } else if (IS_DMA64) { 1445 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1446 pthru->sge_count = megasas_make_sgl64(instance, scp, 1447 &pthru->sgl); 1448 } else 1449 pthru->sge_count = megasas_make_sgl32(instance, scp, 1450 &pthru->sgl); 1451 1452 if (pthru->sge_count > instance->max_num_sge) { 1453 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", 1454 pthru->sge_count); 1455 return 0; 1456 } 1457 1458 /* 1459 * Sense info specific 1460 */ 1461 pthru->sense_len = SCSI_SENSE_BUFFERSIZE; 1462 pthru->sense_buf_phys_addr_hi = 1463 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); 1464 pthru->sense_buf_phys_addr_lo = 1465 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); 1466 1467 /* 1468 * Compute the total number of frames this command consumes. FW uses 1469 * this number to pull sufficient number of frames from host memory. 1470 */ 1471 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, 1472 PTHRU_FRAME); 1473 1474 return cmd->frame_count; 1475 } 1476 1477 /** 1478 * megasas_build_ldio - Prepares IOs to logical devices 1479 * @instance: Adapter soft state 1480 * @scp: SCSI command 1481 * @cmd: Command to be prepared 1482 * 1483 * Frames (and accompanying SGLs) for regular SCSI IOs use this function. 1484 */ 1485 static int 1486 megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, 1487 struct megasas_cmd *cmd) 1488 { 1489 u32 device_id; 1490 u8 sc = scp->cmnd[0]; 1491 u16 flags = 0; 1492 struct megasas_io_frame *ldio; 1493 1494 device_id = MEGASAS_DEV_INDEX(scp); 1495 ldio = (struct megasas_io_frame *)cmd->frame; 1496 1497 if (scp->sc_data_direction == DMA_TO_DEVICE) 1498 flags = MFI_FRAME_DIR_WRITE; 1499 else if (scp->sc_data_direction == DMA_FROM_DEVICE) 1500 flags = MFI_FRAME_DIR_READ; 1501 1502 if (instance->flag_ieee == 1) { 1503 flags |= MFI_FRAME_IEEE; 1504 } 1505 1506 /* 1507 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds 1508 */ 1509 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; 1510 ldio->cmd_status = 0x0; 1511 ldio->scsi_status = 0x0; 1512 ldio->target_id = device_id; 1513 ldio->timeout = 0; 1514 ldio->reserved_0 = 0; 1515 ldio->pad_0 = 0; 1516 ldio->flags = cpu_to_le16(flags); 1517 ldio->start_lba_hi = 0; 1518 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; 1519 1520 /* 1521 * 6-byte READ(0x08) or WRITE(0x0A) cdb 1522 */ 1523 if (scp->cmd_len == 6) { 1524 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); 1525 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | 1526 ((u32) scp->cmnd[2] << 8) | 1527 (u32) scp->cmnd[3]); 1528 1529 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); 1530 } 1531 1532 /* 1533 * 10-byte READ(0x28) or WRITE(0x2A) cdb 1534 */ 1535 else if (scp->cmd_len == 10) { 1536 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | 1537 ((u32) scp->cmnd[7] << 8)); 1538 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1539 ((u32) scp->cmnd[3] << 16) | 1540 ((u32) scp->cmnd[4] << 8) | 1541 (u32) scp->cmnd[5]); 1542 } 1543 1544 /* 1545 * 12-byte READ(0xA8) or WRITE(0xAA) cdb 1546 */ 1547 else if (scp->cmd_len == 12) { 1548 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1549 ((u32) scp->cmnd[7] << 16) | 1550 ((u32) scp->cmnd[8] << 8) | 1551 (u32) scp->cmnd[9]); 1552 1553 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1554 ((u32) scp->cmnd[3] << 16) | 1555 ((u32) scp->cmnd[4] << 8) | 1556 (u32) scp->cmnd[5]); 1557 } 1558 1559 /* 1560 * 16-byte READ(0x88) or WRITE(0x8A) cdb 1561 */ 1562 else if (scp->cmd_len == 16) { 1563 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | 1564 ((u32) scp->cmnd[11] << 16) | 1565 ((u32) scp->cmnd[12] << 8) | 1566 (u32) scp->cmnd[13]); 1567 1568 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | 1569 ((u32) scp->cmnd[7] << 16) | 1570 ((u32) scp->cmnd[8] << 8) | 1571 (u32) scp->cmnd[9]); 1572 1573 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | 1574 ((u32) scp->cmnd[3] << 16) | 1575 ((u32) scp->cmnd[4] << 8) | 1576 (u32) scp->cmnd[5]); 1577 1578 } 1579 1580 /* 1581 * Construct SGL 1582 */ 1583 if (instance->flag_ieee) { 1584 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1585 ldio->sge_count = megasas_make_sgl_skinny(instance, scp, 1586 &ldio->sgl); 1587 } else if (IS_DMA64) { 1588 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); 1589 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); 1590 } else 1591 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); 1592 1593 if (ldio->sge_count > instance->max_num_sge) { 1594 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", 1595 ldio->sge_count); 1596 return 0; 1597 } 1598 1599 /* 1600 * Sense info specific 1601 */ 1602 ldio->sense_len = SCSI_SENSE_BUFFERSIZE; 1603 ldio->sense_buf_phys_addr_hi = 0; 1604 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); 1605 1606 /* 1607 * Compute the total number of frames this command consumes. FW uses 1608 * this number to pull sufficient number of frames from host memory. 1609 */ 1610 cmd->frame_count = megasas_get_frame_count(instance, 1611 ldio->sge_count, IO_FRAME); 1612 1613 return cmd->frame_count; 1614 } 1615 1616 /** 1617 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD 1618 * and whether it's RW or non RW 1619 * @cmd: SCSI command 1620 * 1621 */ 1622 inline int megasas_cmd_type(struct scsi_cmnd *cmd) 1623 { 1624 int ret; 1625 1626 switch (cmd->cmnd[0]) { 1627 case READ_10: 1628 case WRITE_10: 1629 case READ_12: 1630 case WRITE_12: 1631 case READ_6: 1632 case WRITE_6: 1633 case READ_16: 1634 case WRITE_16: 1635 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1636 READ_WRITE_LDIO : READ_WRITE_SYSPDIO; 1637 break; 1638 default: 1639 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ? 1640 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; 1641 } 1642 return ret; 1643 } 1644 1645 /** 1646 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds 1647 * in FW 1648 * @instance: Adapter soft state 1649 */ 1650 static inline void 1651 megasas_dump_pending_frames(struct megasas_instance *instance) 1652 { 1653 struct megasas_cmd *cmd; 1654 int i,n; 1655 union megasas_sgl *mfi_sgl; 1656 struct megasas_io_frame *ldio; 1657 struct megasas_pthru_frame *pthru; 1658 u32 sgcount; 1659 u16 max_cmd = instance->max_fw_cmds; 1660 1661 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); 1662 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); 1663 if (IS_DMA64) 1664 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); 1665 else 1666 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); 1667 1668 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); 1669 for (i = 0; i < max_cmd; i++) { 1670 cmd = instance->cmd_list[i]; 1671 if (!cmd->scmd) 1672 continue; 1673 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); 1674 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { 1675 ldio = (struct megasas_io_frame *)cmd->frame; 1676 mfi_sgl = &ldio->sgl; 1677 sgcount = ldio->sge_count; 1678 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," 1679 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1680 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, 1681 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), 1682 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); 1683 } else { 1684 pthru = (struct megasas_pthru_frame *) cmd->frame; 1685 mfi_sgl = &pthru->sgl; 1686 sgcount = pthru->sge_count; 1687 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " 1688 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", 1689 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, 1690 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), 1691 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); 1692 } 1693 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { 1694 for (n = 0; n < sgcount; n++) { 1695 if (IS_DMA64) 1696 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", 1697 le32_to_cpu(mfi_sgl->sge64[n].length), 1698 le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); 1699 else 1700 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", 1701 le32_to_cpu(mfi_sgl->sge32[n].length), 1702 le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); 1703 } 1704 } 1705 } /*for max_cmd*/ 1706 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); 1707 for (i = 0; i < max_cmd; i++) { 1708 1709 cmd = instance->cmd_list[i]; 1710 1711 if (cmd->sync_cmd == 1) 1712 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); 1713 } 1714 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); 1715 } 1716 1717 u32 1718 megasas_build_and_issue_cmd(struct megasas_instance *instance, 1719 struct scsi_cmnd *scmd) 1720 { 1721 struct megasas_cmd *cmd; 1722 u32 frame_count; 1723 1724 cmd = megasas_get_cmd(instance); 1725 if (!cmd) 1726 return SCSI_MLQUEUE_HOST_BUSY; 1727 1728 /* 1729 * Logical drive command 1730 */ 1731 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) 1732 frame_count = megasas_build_ldio(instance, scmd, cmd); 1733 else 1734 frame_count = megasas_build_dcdb(instance, scmd, cmd); 1735 1736 if (!frame_count) 1737 goto out_return_cmd; 1738 1739 cmd->scmd = scmd; 1740 scmd->SCp.ptr = (char *)cmd; 1741 1742 /* 1743 * Issue the command to the FW 1744 */ 1745 atomic_inc(&instance->fw_outstanding); 1746 1747 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, 1748 cmd->frame_count-1, instance->reg_set); 1749 1750 return 0; 1751 out_return_cmd: 1752 megasas_return_cmd(instance, cmd); 1753 return SCSI_MLQUEUE_HOST_BUSY; 1754 } 1755 1756 1757 /** 1758 * megasas_queue_command - Queue entry point 1759 * @shost: adapter SCSI host 1760 * @scmd: SCSI command to be queued 1761 */ 1762 static int 1763 megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) 1764 { 1765 struct megasas_instance *instance; 1766 struct MR_PRIV_DEVICE *mr_device_priv_data; 1767 1768 instance = (struct megasas_instance *) 1769 scmd->device->host->hostdata; 1770 1771 if (instance->unload == 1) { 1772 scmd->result = DID_NO_CONNECT << 16; 1773 scmd->scsi_done(scmd); 1774 return 0; 1775 } 1776 1777 if (instance->issuepend_done == 0) 1778 return SCSI_MLQUEUE_HOST_BUSY; 1779 1780 1781 /* Check for an mpio path and adjust behavior */ 1782 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 1783 if (megasas_check_mpio_paths(instance, scmd) == 1784 (DID_REQUEUE << 16)) { 1785 return SCSI_MLQUEUE_HOST_BUSY; 1786 } else { 1787 scmd->result = DID_NO_CONNECT << 16; 1788 scmd->scsi_done(scmd); 1789 return 0; 1790 } 1791 } 1792 1793 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 1794 scmd->result = DID_NO_CONNECT << 16; 1795 scmd->scsi_done(scmd); 1796 return 0; 1797 } 1798 1799 mr_device_priv_data = scmd->device->hostdata; 1800 if (!mr_device_priv_data) { 1801 scmd->result = DID_NO_CONNECT << 16; 1802 scmd->scsi_done(scmd); 1803 return 0; 1804 } 1805 1806 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) 1807 return SCSI_MLQUEUE_HOST_BUSY; 1808 1809 if (mr_device_priv_data->tm_busy) 1810 return SCSI_MLQUEUE_DEVICE_BUSY; 1811 1812 1813 scmd->result = 0; 1814 1815 if (MEGASAS_IS_LOGICAL(scmd->device) && 1816 (scmd->device->id >= instance->fw_supported_vd_count || 1817 scmd->device->lun)) { 1818 scmd->result = DID_BAD_TARGET << 16; 1819 goto out_done; 1820 } 1821 1822 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) && 1823 MEGASAS_IS_LOGICAL(scmd->device) && 1824 (!instance->fw_sync_cache_support)) { 1825 scmd->result = DID_OK << 16; 1826 goto out_done; 1827 } 1828 1829 return instance->instancet->build_and_issue_cmd(instance, scmd); 1830 1831 out_done: 1832 scmd->scsi_done(scmd); 1833 return 0; 1834 } 1835 1836 static struct megasas_instance *megasas_lookup_instance(u16 host_no) 1837 { 1838 int i; 1839 1840 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 1841 1842 if ((megasas_mgmt_info.instance[i]) && 1843 (megasas_mgmt_info.instance[i]->host->host_no == host_no)) 1844 return megasas_mgmt_info.instance[i]; 1845 } 1846 1847 return NULL; 1848 } 1849 1850 /* 1851 * megasas_set_dynamic_target_properties - 1852 * Device property set by driver may not be static and it is required to be 1853 * updated after OCR 1854 * 1855 * set tm_capable. 1856 * set dma alignment (only for eedp protection enable vd). 1857 * 1858 * @sdev: OS provided scsi device 1859 * 1860 * Returns void 1861 */ 1862 void megasas_set_dynamic_target_properties(struct scsi_device *sdev, 1863 bool is_target_prop) 1864 { 1865 u16 pd_index = 0, ld; 1866 u32 device_id; 1867 struct megasas_instance *instance; 1868 struct fusion_context *fusion; 1869 struct MR_PRIV_DEVICE *mr_device_priv_data; 1870 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; 1871 struct MR_LD_RAID *raid; 1872 struct MR_DRV_RAID_MAP_ALL *local_map_ptr; 1873 1874 instance = megasas_lookup_instance(sdev->host->host_no); 1875 fusion = instance->ctrl_context; 1876 mr_device_priv_data = sdev->hostdata; 1877 1878 if (!fusion || !mr_device_priv_data) 1879 return; 1880 1881 if (MEGASAS_IS_LOGICAL(sdev)) { 1882 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) 1883 + sdev->id; 1884 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; 1885 ld = MR_TargetIdToLdGet(device_id, local_map_ptr); 1886 if (ld >= instance->fw_supported_vd_count) 1887 return; 1888 raid = MR_LdRaidGet(ld, local_map_ptr); 1889 1890 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) 1891 blk_queue_update_dma_alignment(sdev->request_queue, 0x7); 1892 1893 mr_device_priv_data->is_tm_capable = 1894 raid->capability.tmCapable; 1895 1896 if (!raid->flags.isEPD) 1897 sdev->no_write_same = 1; 1898 1899 } else if (instance->use_seqnum_jbod_fp) { 1900 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 1901 sdev->id; 1902 pd_sync = (void *)fusion->pd_seq_sync 1903 [(instance->pd_seq_map_id - 1) & 1]; 1904 mr_device_priv_data->is_tm_capable = 1905 pd_sync->seq[pd_index].capability.tmCapable; 1906 } 1907 1908 if (is_target_prop && instance->tgt_prop->reset_tmo) { 1909 /* 1910 * If FW provides a target reset timeout value, driver will use 1911 * it. If not set, fallback to default values. 1912 */ 1913 mr_device_priv_data->target_reset_tmo = 1914 min_t(u8, instance->max_reset_tmo, 1915 instance->tgt_prop->reset_tmo); 1916 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo; 1917 } else { 1918 mr_device_priv_data->target_reset_tmo = 1919 MEGASAS_DEFAULT_TM_TIMEOUT; 1920 mr_device_priv_data->task_abort_tmo = 1921 MEGASAS_DEFAULT_TM_TIMEOUT; 1922 } 1923 } 1924 1925 /* 1926 * megasas_set_nvme_device_properties - 1927 * set nomerges=2 1928 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K). 1929 * set maximum io transfer = MDTS of NVME device provided by MR firmware. 1930 * 1931 * MR firmware provides value in KB. Caller of this function converts 1932 * kb into bytes. 1933 * 1934 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size, 1935 * MR firmware provides value 128 as (32 * 4K) = 128K. 1936 * 1937 * @sdev: scsi device 1938 * @max_io_size: maximum io transfer size 1939 * 1940 */ 1941 static inline void 1942 megasas_set_nvme_device_properties(struct scsi_device *sdev, u32 max_io_size) 1943 { 1944 struct megasas_instance *instance; 1945 u32 mr_nvme_pg_size; 1946 1947 instance = (struct megasas_instance *)sdev->host->hostdata; 1948 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size, 1949 MR_DEFAULT_NVME_PAGE_SIZE); 1950 1951 blk_queue_max_hw_sectors(sdev->request_queue, (max_io_size / 512)); 1952 1953 blk_queue_flag_set(QUEUE_FLAG_NOMERGES, sdev->request_queue); 1954 blk_queue_virt_boundary(sdev->request_queue, mr_nvme_pg_size - 1); 1955 } 1956 1957 /* 1958 * megasas_set_fw_assisted_qd - 1959 * set device queue depth to can_queue 1960 * set device queue depth to fw assisted qd 1961 * 1962 * @sdev: scsi device 1963 * @is_target_prop true, if fw provided target properties. 1964 */ 1965 static void megasas_set_fw_assisted_qd(struct scsi_device *sdev, 1966 bool is_target_prop) 1967 { 1968 u8 interface_type; 1969 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN; 1970 u32 tgt_device_qd; 1971 struct megasas_instance *instance; 1972 struct MR_PRIV_DEVICE *mr_device_priv_data; 1973 1974 instance = megasas_lookup_instance(sdev->host->host_no); 1975 mr_device_priv_data = sdev->hostdata; 1976 interface_type = mr_device_priv_data->interface_type; 1977 1978 switch (interface_type) { 1979 case SAS_PD: 1980 device_qd = MEGASAS_SAS_QD; 1981 break; 1982 case SATA_PD: 1983 device_qd = MEGASAS_SATA_QD; 1984 break; 1985 case NVME_PD: 1986 device_qd = MEGASAS_NVME_QD; 1987 break; 1988 } 1989 1990 if (is_target_prop) { 1991 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth); 1992 if (tgt_device_qd) 1993 device_qd = min(instance->host->can_queue, 1994 (int)tgt_device_qd); 1995 } 1996 1997 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE) 1998 device_qd = instance->host->can_queue; 1999 2000 scsi_change_queue_depth(sdev, device_qd); 2001 } 2002 2003 /* 2004 * megasas_set_static_target_properties - 2005 * Device property set by driver are static and it is not required to be 2006 * updated after OCR. 2007 * 2008 * set io timeout 2009 * set device queue depth 2010 * set nvme device properties. see - megasas_set_nvme_device_properties 2011 * 2012 * @sdev: scsi device 2013 * @is_target_prop true, if fw provided target properties. 2014 */ 2015 static void megasas_set_static_target_properties(struct scsi_device *sdev, 2016 bool is_target_prop) 2017 { 2018 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB; 2019 struct megasas_instance *instance; 2020 2021 instance = megasas_lookup_instance(sdev->host->host_no); 2022 2023 /* 2024 * The RAID firmware may require extended timeouts. 2025 */ 2026 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ); 2027 2028 /* max_io_size_kb will be set to non zero for 2029 * nvme based vd and syspd. 2030 */ 2031 if (is_target_prop) 2032 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb); 2033 2034 if (instance->nvme_page_size && max_io_size_kb) 2035 megasas_set_nvme_device_properties(sdev, (max_io_size_kb << 10)); 2036 2037 megasas_set_fw_assisted_qd(sdev, is_target_prop); 2038 } 2039 2040 2041 static int megasas_slave_configure(struct scsi_device *sdev) 2042 { 2043 u16 pd_index = 0; 2044 struct megasas_instance *instance; 2045 int ret_target_prop = DCMD_FAILED; 2046 bool is_target_prop = false; 2047 2048 instance = megasas_lookup_instance(sdev->host->host_no); 2049 if (instance->pd_list_not_supported) { 2050 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) { 2051 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2052 sdev->id; 2053 if (instance->pd_list[pd_index].driveState != 2054 MR_PD_STATE_SYSTEM) 2055 return -ENXIO; 2056 } 2057 } 2058 2059 mutex_lock(&instance->reset_mutex); 2060 /* Send DCMD to Firmware and cache the information */ 2061 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev)) 2062 megasas_get_pd_info(instance, sdev); 2063 2064 /* Some ventura firmware may not have instance->nvme_page_size set. 2065 * Do not send MR_DCMD_DRV_GET_TARGET_PROP 2066 */ 2067 if ((instance->tgt_prop) && (instance->nvme_page_size)) 2068 ret_target_prop = megasas_get_target_prop(instance, sdev); 2069 2070 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 2071 megasas_set_static_target_properties(sdev, is_target_prop); 2072 2073 /* This sdev property may change post OCR */ 2074 megasas_set_dynamic_target_properties(sdev, is_target_prop); 2075 2076 mutex_unlock(&instance->reset_mutex); 2077 2078 return 0; 2079 } 2080 2081 static int megasas_slave_alloc(struct scsi_device *sdev) 2082 { 2083 u16 pd_index = 0; 2084 struct megasas_instance *instance ; 2085 struct MR_PRIV_DEVICE *mr_device_priv_data; 2086 2087 instance = megasas_lookup_instance(sdev->host->host_no); 2088 if (!MEGASAS_IS_LOGICAL(sdev)) { 2089 /* 2090 * Open the OS scan to the SYSTEM PD 2091 */ 2092 pd_index = 2093 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + 2094 sdev->id; 2095 if ((instance->pd_list_not_supported || 2096 instance->pd_list[pd_index].driveState == 2097 MR_PD_STATE_SYSTEM)) { 2098 goto scan_target; 2099 } 2100 return -ENXIO; 2101 } 2102 2103 scan_target: 2104 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), 2105 GFP_KERNEL); 2106 if (!mr_device_priv_data) 2107 return -ENOMEM; 2108 sdev->hostdata = mr_device_priv_data; 2109 2110 atomic_set(&mr_device_priv_data->r1_ldio_hint, 2111 instance->r1_ldio_hint_default); 2112 return 0; 2113 } 2114 2115 static void megasas_slave_destroy(struct scsi_device *sdev) 2116 { 2117 kfree(sdev->hostdata); 2118 sdev->hostdata = NULL; 2119 } 2120 2121 /* 2122 * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a 2123 * kill adapter 2124 * @instance: Adapter soft state 2125 * 2126 */ 2127 static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) 2128 { 2129 int i; 2130 struct megasas_cmd *cmd_mfi; 2131 struct megasas_cmd_fusion *cmd_fusion; 2132 struct fusion_context *fusion = instance->ctrl_context; 2133 2134 /* Find all outstanding ioctls */ 2135 if (fusion) { 2136 for (i = 0; i < instance->max_fw_cmds; i++) { 2137 cmd_fusion = fusion->cmd_list[i]; 2138 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { 2139 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; 2140 if (cmd_mfi->sync_cmd && 2141 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) { 2142 cmd_mfi->frame->hdr.cmd_status = 2143 MFI_STAT_WRONG_STATE; 2144 megasas_complete_cmd(instance, 2145 cmd_mfi, DID_OK); 2146 } 2147 } 2148 } 2149 } else { 2150 for (i = 0; i < instance->max_fw_cmds; i++) { 2151 cmd_mfi = instance->cmd_list[i]; 2152 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != 2153 MFI_CMD_ABORT) 2154 megasas_complete_cmd(instance, cmd_mfi, DID_OK); 2155 } 2156 } 2157 } 2158 2159 2160 void megaraid_sas_kill_hba(struct megasas_instance *instance) 2161 { 2162 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2163 dev_warn(&instance->pdev->dev, 2164 "Adapter already dead, skipping kill HBA\n"); 2165 return; 2166 } 2167 2168 /* Set critical error to block I/O & ioctls in case caller didn't */ 2169 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2170 /* Wait 1 second to ensure IO or ioctls in build have posted */ 2171 msleep(1000); 2172 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 2173 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 2174 (instance->adapter_type != MFI_SERIES)) { 2175 if (!instance->requestorId) { 2176 writel(MFI_STOP_ADP, &instance->reg_set->doorbell); 2177 /* Flush */ 2178 readl(&instance->reg_set->doorbell); 2179 } 2180 if (instance->requestorId && instance->peerIsPresent) 2181 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 2182 } else { 2183 writel(MFI_STOP_ADP, 2184 &instance->reg_set->inbound_doorbell); 2185 } 2186 /* Complete outstanding ioctls when adapter is killed */ 2187 megasas_complete_outstanding_ioctls(instance); 2188 } 2189 2190 /** 2191 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be 2192 * restored to max value 2193 * @instance: Adapter soft state 2194 * 2195 */ 2196 void 2197 megasas_check_and_restore_queue_depth(struct megasas_instance *instance) 2198 { 2199 unsigned long flags; 2200 2201 if (instance->flag & MEGASAS_FW_BUSY 2202 && time_after(jiffies, instance->last_time + 5 * HZ) 2203 && atomic_read(&instance->fw_outstanding) < 2204 instance->throttlequeuedepth + 1) { 2205 2206 spin_lock_irqsave(instance->host->host_lock, flags); 2207 instance->flag &= ~MEGASAS_FW_BUSY; 2208 2209 instance->host->can_queue = instance->cur_can_queue; 2210 spin_unlock_irqrestore(instance->host->host_lock, flags); 2211 } 2212 } 2213 2214 /** 2215 * megasas_complete_cmd_dpc - Returns FW's controller structure 2216 * @instance_addr: Address of adapter soft state 2217 * 2218 * Tasklet to complete cmds 2219 */ 2220 static void megasas_complete_cmd_dpc(unsigned long instance_addr) 2221 { 2222 u32 producer; 2223 u32 consumer; 2224 u32 context; 2225 struct megasas_cmd *cmd; 2226 struct megasas_instance *instance = 2227 (struct megasas_instance *)instance_addr; 2228 unsigned long flags; 2229 2230 /* If we have already declared adapter dead, donot complete cmds */ 2231 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 2232 return; 2233 2234 spin_lock_irqsave(&instance->completion_lock, flags); 2235 2236 producer = le32_to_cpu(*instance->producer); 2237 consumer = le32_to_cpu(*instance->consumer); 2238 2239 while (consumer != producer) { 2240 context = le32_to_cpu(instance->reply_queue[consumer]); 2241 if (context >= instance->max_fw_cmds) { 2242 dev_err(&instance->pdev->dev, "Unexpected context value %x\n", 2243 context); 2244 BUG(); 2245 } 2246 2247 cmd = instance->cmd_list[context]; 2248 2249 megasas_complete_cmd(instance, cmd, DID_OK); 2250 2251 consumer++; 2252 if (consumer == (instance->max_fw_cmds + 1)) { 2253 consumer = 0; 2254 } 2255 } 2256 2257 *instance->consumer = cpu_to_le32(producer); 2258 2259 spin_unlock_irqrestore(&instance->completion_lock, flags); 2260 2261 /* 2262 * Check if we can restore can_queue 2263 */ 2264 megasas_check_and_restore_queue_depth(instance); 2265 } 2266 2267 static void megasas_sriov_heartbeat_handler(struct timer_list *t); 2268 2269 /** 2270 * megasas_start_timer - Initializes sriov heartbeat timer object 2271 * @instance: Adapter soft state 2272 * 2273 */ 2274 void megasas_start_timer(struct megasas_instance *instance) 2275 { 2276 struct timer_list *timer = &instance->sriov_heartbeat_timer; 2277 2278 timer_setup(timer, megasas_sriov_heartbeat_handler, 0); 2279 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF; 2280 add_timer(timer); 2281 } 2282 2283 static void 2284 megasas_internal_reset_defer_cmds(struct megasas_instance *instance); 2285 2286 static void 2287 process_fw_state_change_wq(struct work_struct *work); 2288 2289 static void megasas_do_ocr(struct megasas_instance *instance) 2290 { 2291 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 2292 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 2293 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 2294 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 2295 } 2296 instance->instancet->disable_intr(instance); 2297 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 2298 instance->issuepend_done = 0; 2299 2300 atomic_set(&instance->fw_outstanding, 0); 2301 megasas_internal_reset_defer_cmds(instance); 2302 process_fw_state_change_wq(&instance->work_init); 2303 } 2304 2305 static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, 2306 int initial) 2307 { 2308 struct megasas_cmd *cmd; 2309 struct megasas_dcmd_frame *dcmd; 2310 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; 2311 dma_addr_t new_affiliation_111_h; 2312 int ld, retval = 0; 2313 u8 thisVf; 2314 2315 cmd = megasas_get_cmd(instance); 2316 2317 if (!cmd) { 2318 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" 2319 "Failed to get cmd for scsi%d\n", 2320 instance->host->host_no); 2321 return -ENOMEM; 2322 } 2323 2324 dcmd = &cmd->frame->dcmd; 2325 2326 if (!instance->vf_affiliation_111) { 2327 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2328 "affiliation for scsi%d\n", instance->host->host_no); 2329 megasas_return_cmd(instance, cmd); 2330 return -ENOMEM; 2331 } 2332 2333 if (initial) 2334 memset(instance->vf_affiliation_111, 0, 2335 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2336 else { 2337 new_affiliation_111 = 2338 dma_alloc_coherent(&instance->pdev->dev, 2339 sizeof(struct MR_LD_VF_AFFILIATION_111), 2340 &new_affiliation_111_h, GFP_KERNEL); 2341 if (!new_affiliation_111) { 2342 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2343 "memory for new affiliation for scsi%d\n", 2344 instance->host->host_no); 2345 megasas_return_cmd(instance, cmd); 2346 return -ENOMEM; 2347 } 2348 } 2349 2350 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2351 2352 dcmd->cmd = MFI_CMD_DCMD; 2353 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2354 dcmd->sge_count = 1; 2355 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2356 dcmd->timeout = 0; 2357 dcmd->pad_0 = 0; 2358 dcmd->data_xfer_len = 2359 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); 2360 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); 2361 2362 if (initial) 2363 dcmd->sgl.sge32[0].phys_addr = 2364 cpu_to_le32(instance->vf_affiliation_111_h); 2365 else 2366 dcmd->sgl.sge32[0].phys_addr = 2367 cpu_to_le32(new_affiliation_111_h); 2368 2369 dcmd->sgl.sge32[0].length = cpu_to_le32( 2370 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2371 2372 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2373 "scsi%d\n", instance->host->host_no); 2374 2375 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2376 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2377 " failed with status 0x%x for scsi%d\n", 2378 dcmd->cmd_status, instance->host->host_no); 2379 retval = 1; /* Do a scan if we couldn't get affiliation */ 2380 goto out; 2381 } 2382 2383 if (!initial) { 2384 thisVf = new_affiliation_111->thisVf; 2385 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) 2386 if (instance->vf_affiliation_111->map[ld].policy[thisVf] != 2387 new_affiliation_111->map[ld].policy[thisVf]) { 2388 dev_warn(&instance->pdev->dev, "SR-IOV: " 2389 "Got new LD/VF affiliation for scsi%d\n", 2390 instance->host->host_no); 2391 memcpy(instance->vf_affiliation_111, 2392 new_affiliation_111, 2393 sizeof(struct MR_LD_VF_AFFILIATION_111)); 2394 retval = 1; 2395 goto out; 2396 } 2397 } 2398 out: 2399 if (new_affiliation_111) { 2400 dma_free_coherent(&instance->pdev->dev, 2401 sizeof(struct MR_LD_VF_AFFILIATION_111), 2402 new_affiliation_111, 2403 new_affiliation_111_h); 2404 } 2405 2406 megasas_return_cmd(instance, cmd); 2407 2408 return retval; 2409 } 2410 2411 static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, 2412 int initial) 2413 { 2414 struct megasas_cmd *cmd; 2415 struct megasas_dcmd_frame *dcmd; 2416 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; 2417 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; 2418 dma_addr_t new_affiliation_h; 2419 int i, j, retval = 0, found = 0, doscan = 0; 2420 u8 thisVf; 2421 2422 cmd = megasas_get_cmd(instance); 2423 2424 if (!cmd) { 2425 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " 2426 "Failed to get cmd for scsi%d\n", 2427 instance->host->host_no); 2428 return -ENOMEM; 2429 } 2430 2431 dcmd = &cmd->frame->dcmd; 2432 2433 if (!instance->vf_affiliation) { 2434 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " 2435 "affiliation for scsi%d\n", instance->host->host_no); 2436 megasas_return_cmd(instance, cmd); 2437 return -ENOMEM; 2438 } 2439 2440 if (initial) 2441 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * 2442 sizeof(struct MR_LD_VF_AFFILIATION)); 2443 else { 2444 new_affiliation = 2445 dma_alloc_coherent(&instance->pdev->dev, 2446 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION), 2447 &new_affiliation_h, GFP_KERNEL); 2448 if (!new_affiliation) { 2449 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " 2450 "memory for new affiliation for scsi%d\n", 2451 instance->host->host_no); 2452 megasas_return_cmd(instance, cmd); 2453 return -ENOMEM; 2454 } 2455 } 2456 2457 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2458 2459 dcmd->cmd = MFI_CMD_DCMD; 2460 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2461 dcmd->sge_count = 1; 2462 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2463 dcmd->timeout = 0; 2464 dcmd->pad_0 = 0; 2465 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2466 sizeof(struct MR_LD_VF_AFFILIATION)); 2467 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); 2468 2469 if (initial) 2470 dcmd->sgl.sge32[0].phys_addr = 2471 cpu_to_le32(instance->vf_affiliation_h); 2472 else 2473 dcmd->sgl.sge32[0].phys_addr = 2474 cpu_to_le32(new_affiliation_h); 2475 2476 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * 2477 sizeof(struct MR_LD_VF_AFFILIATION)); 2478 2479 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " 2480 "scsi%d\n", instance->host->host_no); 2481 2482 2483 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { 2484 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" 2485 " failed with status 0x%x for scsi%d\n", 2486 dcmd->cmd_status, instance->host->host_no); 2487 retval = 1; /* Do a scan if we couldn't get affiliation */ 2488 goto out; 2489 } 2490 2491 if (!initial) { 2492 if (!new_affiliation->ldCount) { 2493 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2494 "affiliation for passive path for scsi%d\n", 2495 instance->host->host_no); 2496 retval = 1; 2497 goto out; 2498 } 2499 newmap = new_affiliation->map; 2500 savedmap = instance->vf_affiliation->map; 2501 thisVf = new_affiliation->thisVf; 2502 for (i = 0 ; i < new_affiliation->ldCount; i++) { 2503 found = 0; 2504 for (j = 0; j < instance->vf_affiliation->ldCount; 2505 j++) { 2506 if (newmap->ref.targetId == 2507 savedmap->ref.targetId) { 2508 found = 1; 2509 if (newmap->policy[thisVf] != 2510 savedmap->policy[thisVf]) { 2511 doscan = 1; 2512 goto out; 2513 } 2514 } 2515 savedmap = (struct MR_LD_VF_MAP *) 2516 ((unsigned char *)savedmap + 2517 savedmap->size); 2518 } 2519 if (!found && newmap->policy[thisVf] != 2520 MR_LD_ACCESS_HIDDEN) { 2521 doscan = 1; 2522 goto out; 2523 } 2524 newmap = (struct MR_LD_VF_MAP *) 2525 ((unsigned char *)newmap + newmap->size); 2526 } 2527 2528 newmap = new_affiliation->map; 2529 savedmap = instance->vf_affiliation->map; 2530 2531 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { 2532 found = 0; 2533 for (j = 0 ; j < new_affiliation->ldCount; j++) { 2534 if (savedmap->ref.targetId == 2535 newmap->ref.targetId) { 2536 found = 1; 2537 if (savedmap->policy[thisVf] != 2538 newmap->policy[thisVf]) { 2539 doscan = 1; 2540 goto out; 2541 } 2542 } 2543 newmap = (struct MR_LD_VF_MAP *) 2544 ((unsigned char *)newmap + 2545 newmap->size); 2546 } 2547 if (!found && savedmap->policy[thisVf] != 2548 MR_LD_ACCESS_HIDDEN) { 2549 doscan = 1; 2550 goto out; 2551 } 2552 savedmap = (struct MR_LD_VF_MAP *) 2553 ((unsigned char *)savedmap + 2554 savedmap->size); 2555 } 2556 } 2557 out: 2558 if (doscan) { 2559 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " 2560 "affiliation for scsi%d\n", instance->host->host_no); 2561 memcpy(instance->vf_affiliation, new_affiliation, 2562 new_affiliation->size); 2563 retval = 1; 2564 } 2565 2566 if (new_affiliation) 2567 dma_free_coherent(&instance->pdev->dev, 2568 (MAX_LOGICAL_DRIVES + 1) * 2569 sizeof(struct MR_LD_VF_AFFILIATION), 2570 new_affiliation, new_affiliation_h); 2571 megasas_return_cmd(instance, cmd); 2572 2573 return retval; 2574 } 2575 2576 /* This function will get the current SR-IOV LD/VF affiliation */ 2577 static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, 2578 int initial) 2579 { 2580 int retval; 2581 2582 if (instance->PlasmaFW111) 2583 retval = megasas_get_ld_vf_affiliation_111(instance, initial); 2584 else 2585 retval = megasas_get_ld_vf_affiliation_12(instance, initial); 2586 return retval; 2587 } 2588 2589 /* This function will tell FW to start the SR-IOV heartbeat */ 2590 int megasas_sriov_start_heartbeat(struct megasas_instance *instance, 2591 int initial) 2592 { 2593 struct megasas_cmd *cmd; 2594 struct megasas_dcmd_frame *dcmd; 2595 int retval = 0; 2596 2597 cmd = megasas_get_cmd(instance); 2598 2599 if (!cmd) { 2600 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " 2601 "Failed to get cmd for scsi%d\n", 2602 instance->host->host_no); 2603 return -ENOMEM; 2604 } 2605 2606 dcmd = &cmd->frame->dcmd; 2607 2608 if (initial) { 2609 instance->hb_host_mem = 2610 dma_alloc_coherent(&instance->pdev->dev, 2611 sizeof(struct MR_CTRL_HB_HOST_MEM), 2612 &instance->hb_host_mem_h, 2613 GFP_KERNEL); 2614 if (!instance->hb_host_mem) { 2615 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" 2616 " memory for heartbeat host memory for scsi%d\n", 2617 instance->host->host_no); 2618 retval = -ENOMEM; 2619 goto out; 2620 } 2621 } 2622 2623 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 2624 2625 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2626 dcmd->cmd = MFI_CMD_DCMD; 2627 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 2628 dcmd->sge_count = 1; 2629 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); 2630 dcmd->timeout = 0; 2631 dcmd->pad_0 = 0; 2632 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); 2633 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); 2634 2635 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h, 2636 sizeof(struct MR_CTRL_HB_HOST_MEM)); 2637 2638 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", 2639 instance->host->host_no); 2640 2641 if ((instance->adapter_type != MFI_SERIES) && 2642 !instance->mask_interrupts) 2643 retval = megasas_issue_blocked_cmd(instance, cmd, 2644 MEGASAS_ROUTINE_WAIT_TIME_VF); 2645 else 2646 retval = megasas_issue_polled(instance, cmd); 2647 2648 if (retval) { 2649 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" 2650 "_MEM_ALLOC DCMD %s for scsi%d\n", 2651 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? 2652 "timed out" : "failed", instance->host->host_no); 2653 retval = 1; 2654 } 2655 2656 out: 2657 megasas_return_cmd(instance, cmd); 2658 2659 return retval; 2660 } 2661 2662 /* Handler for SR-IOV heartbeat */ 2663 static void megasas_sriov_heartbeat_handler(struct timer_list *t) 2664 { 2665 struct megasas_instance *instance = 2666 from_timer(instance, t, sriov_heartbeat_timer); 2667 2668 if (instance->hb_host_mem->HB.fwCounter != 2669 instance->hb_host_mem->HB.driverCounter) { 2670 instance->hb_host_mem->HB.driverCounter = 2671 instance->hb_host_mem->HB.fwCounter; 2672 mod_timer(&instance->sriov_heartbeat_timer, 2673 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); 2674 } else { 2675 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " 2676 "completed for scsi%d\n", instance->host->host_no); 2677 schedule_work(&instance->work_init); 2678 } 2679 } 2680 2681 /** 2682 * megasas_wait_for_outstanding - Wait for all outstanding cmds 2683 * @instance: Adapter soft state 2684 * 2685 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to 2686 * complete all its outstanding commands. Returns error if one or more IOs 2687 * are pending after this time period. It also marks the controller dead. 2688 */ 2689 static int megasas_wait_for_outstanding(struct megasas_instance *instance) 2690 { 2691 int i, sl, outstanding; 2692 u32 reset_index; 2693 u32 wait_time = MEGASAS_RESET_WAIT_TIME; 2694 unsigned long flags; 2695 struct list_head clist_local; 2696 struct megasas_cmd *reset_cmd; 2697 u32 fw_state; 2698 2699 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2700 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", 2701 __func__, __LINE__); 2702 return FAILED; 2703 } 2704 2705 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2706 2707 INIT_LIST_HEAD(&clist_local); 2708 spin_lock_irqsave(&instance->hba_lock, flags); 2709 list_splice_init(&instance->internal_reset_pending_q, 2710 &clist_local); 2711 spin_unlock_irqrestore(&instance->hba_lock, flags); 2712 2713 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); 2714 for (i = 0; i < wait_time; i++) { 2715 msleep(1000); 2716 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) 2717 break; 2718 } 2719 2720 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { 2721 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); 2722 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); 2723 return FAILED; 2724 } 2725 2726 reset_index = 0; 2727 while (!list_empty(&clist_local)) { 2728 reset_cmd = list_entry((&clist_local)->next, 2729 struct megasas_cmd, list); 2730 list_del_init(&reset_cmd->list); 2731 if (reset_cmd->scmd) { 2732 reset_cmd->scmd->result = DID_REQUEUE << 16; 2733 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", 2734 reset_index, reset_cmd, 2735 reset_cmd->scmd->cmnd[0]); 2736 2737 reset_cmd->scmd->scsi_done(reset_cmd->scmd); 2738 megasas_return_cmd(instance, reset_cmd); 2739 } else if (reset_cmd->sync_cmd) { 2740 dev_notice(&instance->pdev->dev, "%p synch cmds" 2741 "reset queue\n", 2742 reset_cmd); 2743 2744 reset_cmd->cmd_status_drv = DCMD_INIT; 2745 instance->instancet->fire_cmd(instance, 2746 reset_cmd->frame_phys_addr, 2747 0, instance->reg_set); 2748 } else { 2749 dev_notice(&instance->pdev->dev, "%p unexpected" 2750 "cmds lst\n", 2751 reset_cmd); 2752 } 2753 reset_index++; 2754 } 2755 2756 return SUCCESS; 2757 } 2758 2759 for (i = 0; i < resetwaittime; i++) { 2760 outstanding = atomic_read(&instance->fw_outstanding); 2761 2762 if (!outstanding) 2763 break; 2764 2765 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { 2766 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " 2767 "commands to complete\n",i,outstanding); 2768 /* 2769 * Call cmd completion routine. Cmd to be 2770 * be completed directly without depending on isr. 2771 */ 2772 megasas_complete_cmd_dpc((unsigned long)instance); 2773 } 2774 2775 msleep(1000); 2776 } 2777 2778 i = 0; 2779 outstanding = atomic_read(&instance->fw_outstanding); 2780 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2781 2782 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2783 goto no_outstanding; 2784 2785 if (instance->disableOnlineCtrlReset) 2786 goto kill_hba_and_failed; 2787 do { 2788 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { 2789 dev_info(&instance->pdev->dev, 2790 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n", 2791 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); 2792 if (i == 3) 2793 goto kill_hba_and_failed; 2794 megasas_do_ocr(instance); 2795 2796 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2797 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", 2798 __func__, __LINE__); 2799 return FAILED; 2800 } 2801 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", 2802 __func__, __LINE__); 2803 2804 for (sl = 0; sl < 10; sl++) 2805 msleep(500); 2806 2807 outstanding = atomic_read(&instance->fw_outstanding); 2808 2809 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK; 2810 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) 2811 goto no_outstanding; 2812 } 2813 i++; 2814 } while (i <= 3); 2815 2816 no_outstanding: 2817 2818 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", 2819 __func__, __LINE__); 2820 return SUCCESS; 2821 2822 kill_hba_and_failed: 2823 2824 /* Reset not supported, kill adapter */ 2825 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" 2826 " disableOnlineCtrlReset %d fw_outstanding %d \n", 2827 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, 2828 atomic_read(&instance->fw_outstanding)); 2829 megasas_dump_pending_frames(instance); 2830 megaraid_sas_kill_hba(instance); 2831 2832 return FAILED; 2833 } 2834 2835 /** 2836 * megasas_generic_reset - Generic reset routine 2837 * @scmd: Mid-layer SCSI command 2838 * 2839 * This routine implements a generic reset handler for device, bus and host 2840 * reset requests. Device, bus and host specific reset handlers can use this 2841 * function after they do their specific tasks. 2842 */ 2843 static int megasas_generic_reset(struct scsi_cmnd *scmd) 2844 { 2845 int ret_val; 2846 struct megasas_instance *instance; 2847 2848 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2849 2850 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", 2851 scmd->cmnd[0], scmd->retries); 2852 2853 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 2854 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); 2855 return FAILED; 2856 } 2857 2858 ret_val = megasas_wait_for_outstanding(instance); 2859 if (ret_val == SUCCESS) 2860 dev_notice(&instance->pdev->dev, "reset successful\n"); 2861 else 2862 dev_err(&instance->pdev->dev, "failed to do reset\n"); 2863 2864 return ret_val; 2865 } 2866 2867 /** 2868 * megasas_reset_timer - quiesce the adapter if required 2869 * @scmd: scsi cmnd 2870 * 2871 * Sets the FW busy flag and reduces the host->can_queue if the 2872 * cmd has not been completed within the timeout period. 2873 */ 2874 static enum 2875 blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) 2876 { 2877 struct megasas_instance *instance; 2878 unsigned long flags; 2879 2880 if (time_after(jiffies, scmd->jiffies_at_alloc + 2881 (scmd_timeout * 2) * HZ)) { 2882 return BLK_EH_DONE; 2883 } 2884 2885 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2886 if (!(instance->flag & MEGASAS_FW_BUSY)) { 2887 /* FW is busy, throttle IO */ 2888 spin_lock_irqsave(instance->host->host_lock, flags); 2889 2890 instance->host->can_queue = instance->throttlequeuedepth; 2891 instance->last_time = jiffies; 2892 instance->flag |= MEGASAS_FW_BUSY; 2893 2894 spin_unlock_irqrestore(instance->host->host_lock, flags); 2895 } 2896 return BLK_EH_RESET_TIMER; 2897 } 2898 2899 /** 2900 * megasas_dump - This function will print hexdump of provided buffer. 2901 * @buf: Buffer to be dumped 2902 * @sz: Size in bytes 2903 * @format: Different formats of dumping e.g. format=n will 2904 * cause only 'n' 32 bit words to be dumped in a single 2905 * line. 2906 */ 2907 inline void 2908 megasas_dump(void *buf, int sz, int format) 2909 { 2910 int i; 2911 __le32 *buf_loc = (__le32 *)buf; 2912 2913 for (i = 0; i < (sz / sizeof(__le32)); i++) { 2914 if ((i % format) == 0) { 2915 if (i != 0) 2916 printk(KERN_CONT "\n"); 2917 printk(KERN_CONT "%08x: ", (i * 4)); 2918 } 2919 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i])); 2920 } 2921 printk(KERN_CONT "\n"); 2922 } 2923 2924 /** 2925 * megasas_dump_reg_set - This function will print hexdump of register set 2926 * @reg_set: Register set to be dumped 2927 */ 2928 inline void 2929 megasas_dump_reg_set(void __iomem *reg_set) 2930 { 2931 unsigned int i, sz = 256; 2932 u32 __iomem *reg = (u32 __iomem *)reg_set; 2933 2934 for (i = 0; i < (sz / sizeof(u32)); i++) 2935 printk("%08x: %08x\n", (i * 4), readl(®[i])); 2936 } 2937 2938 /** 2939 * megasas_dump_fusion_io - This function will print key details 2940 * of SCSI IO 2941 * @scmd: SCSI command pointer of SCSI IO 2942 */ 2943 void 2944 megasas_dump_fusion_io(struct scsi_cmnd *scmd) 2945 { 2946 struct megasas_cmd_fusion *cmd; 2947 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc; 2948 struct megasas_instance *instance; 2949 2950 cmd = (struct megasas_cmd_fusion *)scmd->SCp.ptr; 2951 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2952 2953 scmd_printk(KERN_INFO, scmd, 2954 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n", 2955 scmd, scmd->retries, scmd->allowed); 2956 scsi_print_command(scmd); 2957 2958 if (cmd) { 2959 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc; 2960 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n"); 2961 scmd_printk(KERN_INFO, scmd, 2962 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n", 2963 req_desc->SCSIIO.RequestFlags, 2964 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID, 2965 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle); 2966 2967 printk(KERN_INFO "IO request frame:\n"); 2968 megasas_dump(cmd->io_request, 2969 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8); 2970 printk(KERN_INFO "Chain frame:\n"); 2971 megasas_dump(cmd->sg_frame, 2972 instance->max_chain_frame_sz, 8); 2973 } 2974 2975 } 2976 2977 /* 2978 * megasas_dump_sys_regs - This function will dump system registers through 2979 * sysfs. 2980 * @reg_set: Pointer to System register set. 2981 * @buf: Buffer to which output is to be written. 2982 * @return: Number of bytes written to buffer. 2983 */ 2984 static inline ssize_t 2985 megasas_dump_sys_regs(void __iomem *reg_set, char *buf) 2986 { 2987 unsigned int i, sz = 256; 2988 int bytes_wrote = 0; 2989 char *loc = (char *)buf; 2990 u32 __iomem *reg = (u32 __iomem *)reg_set; 2991 2992 for (i = 0; i < sz / sizeof(u32); i++) { 2993 bytes_wrote += scnprintf(loc + bytes_wrote, 2994 PAGE_SIZE - bytes_wrote, 2995 "%08x: %08x\n", (i * 4), 2996 readl(®[i])); 2997 } 2998 return bytes_wrote; 2999 } 3000 3001 /** 3002 * megasas_reset_bus_host - Bus & host reset handler entry point 3003 * @scmd: Mid-layer SCSI command 3004 */ 3005 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 3006 { 3007 int ret; 3008 struct megasas_instance *instance; 3009 3010 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3011 3012 scmd_printk(KERN_INFO, scmd, 3013 "OCR is requested due to IO timeout!!\n"); 3014 3015 scmd_printk(KERN_INFO, scmd, 3016 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 3017 scmd->device->host->shost_state, 3018 scsi_host_busy(scmd->device->host), 3019 atomic_read(&instance->fw_outstanding)); 3020 /* 3021 * First wait for all commands to complete 3022 */ 3023 if (instance->adapter_type == MFI_SERIES) { 3024 ret = megasas_generic_reset(scmd); 3025 } else { 3026 megasas_dump_fusion_io(scmd); 3027 ret = megasas_reset_fusion(scmd->device->host, 3028 SCSIIO_TIMEOUT_OCR); 3029 } 3030 3031 return ret; 3032 } 3033 3034 /** 3035 * megasas_task_abort - Issues task abort request to firmware 3036 * (supported only for fusion adapters) 3037 * @scmd: SCSI command pointer 3038 */ 3039 static int megasas_task_abort(struct scsi_cmnd *scmd) 3040 { 3041 int ret; 3042 struct megasas_instance *instance; 3043 3044 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3045 3046 if (instance->adapter_type != MFI_SERIES) 3047 ret = megasas_task_abort_fusion(scmd); 3048 else { 3049 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); 3050 ret = FAILED; 3051 } 3052 3053 return ret; 3054 } 3055 3056 /** 3057 * megasas_reset_target: Issues target reset request to firmware 3058 * (supported only for fusion adapters) 3059 * @scmd: SCSI command pointer 3060 */ 3061 static int megasas_reset_target(struct scsi_cmnd *scmd) 3062 { 3063 int ret; 3064 struct megasas_instance *instance; 3065 3066 instance = (struct megasas_instance *)scmd->device->host->hostdata; 3067 3068 if (instance->adapter_type != MFI_SERIES) 3069 ret = megasas_reset_target_fusion(scmd); 3070 else { 3071 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); 3072 ret = FAILED; 3073 } 3074 3075 return ret; 3076 } 3077 3078 /** 3079 * megasas_bios_param - Returns disk geometry for a disk 3080 * @sdev: device handle 3081 * @bdev: block device 3082 * @capacity: drive capacity 3083 * @geom: geometry parameters 3084 */ 3085 static int 3086 megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, 3087 sector_t capacity, int geom[]) 3088 { 3089 int heads; 3090 int sectors; 3091 sector_t cylinders; 3092 unsigned long tmp; 3093 3094 /* Default heads (64) & sectors (32) */ 3095 heads = 64; 3096 sectors = 32; 3097 3098 tmp = heads * sectors; 3099 cylinders = capacity; 3100 3101 sector_div(cylinders, tmp); 3102 3103 /* 3104 * Handle extended translation size for logical drives > 1Gb 3105 */ 3106 3107 if (capacity >= 0x200000) { 3108 heads = 255; 3109 sectors = 63; 3110 tmp = heads*sectors; 3111 cylinders = capacity; 3112 sector_div(cylinders, tmp); 3113 } 3114 3115 geom[0] = heads; 3116 geom[1] = sectors; 3117 geom[2] = cylinders; 3118 3119 return 0; 3120 } 3121 3122 static void megasas_aen_polling(struct work_struct *work); 3123 3124 /** 3125 * megasas_service_aen - Processes an event notification 3126 * @instance: Adapter soft state 3127 * @cmd: AEN command completed by the ISR 3128 * 3129 * For AEN, driver sends a command down to FW that is held by the FW till an 3130 * event occurs. When an event of interest occurs, FW completes the command 3131 * that it was previously holding. 3132 * 3133 * This routines sends SIGIO signal to processes that have registered with the 3134 * driver for AEN. 3135 */ 3136 static void 3137 megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 3138 { 3139 unsigned long flags; 3140 3141 /* 3142 * Don't signal app if it is just an aborted previously registered aen 3143 */ 3144 if ((!cmd->abort_aen) && (instance->unload == 0)) { 3145 spin_lock_irqsave(&poll_aen_lock, flags); 3146 megasas_poll_wait_aen = 1; 3147 spin_unlock_irqrestore(&poll_aen_lock, flags); 3148 wake_up(&megasas_poll_wait); 3149 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); 3150 } 3151 else 3152 cmd->abort_aen = 0; 3153 3154 instance->aen_cmd = NULL; 3155 3156 megasas_return_cmd(instance, cmd); 3157 3158 if ((instance->unload == 0) && 3159 ((instance->issuepend_done == 1))) { 3160 struct megasas_aen_event *ev; 3161 3162 ev = kzalloc(sizeof(*ev), GFP_ATOMIC); 3163 if (!ev) { 3164 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); 3165 } else { 3166 ev->instance = instance; 3167 instance->ev = ev; 3168 INIT_DELAYED_WORK(&ev->hotplug_work, 3169 megasas_aen_polling); 3170 schedule_delayed_work(&ev->hotplug_work, 0); 3171 } 3172 } 3173 } 3174 3175 static ssize_t 3176 fw_crash_buffer_store(struct device *cdev, 3177 struct device_attribute *attr, const char *buf, size_t count) 3178 { 3179 struct Scsi_Host *shost = class_to_shost(cdev); 3180 struct megasas_instance *instance = 3181 (struct megasas_instance *) shost->hostdata; 3182 int val = 0; 3183 unsigned long flags; 3184 3185 if (kstrtoint(buf, 0, &val) != 0) 3186 return -EINVAL; 3187 3188 spin_lock_irqsave(&instance->crashdump_lock, flags); 3189 instance->fw_crash_buffer_offset = val; 3190 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3191 return strlen(buf); 3192 } 3193 3194 static ssize_t 3195 fw_crash_buffer_show(struct device *cdev, 3196 struct device_attribute *attr, char *buf) 3197 { 3198 struct Scsi_Host *shost = class_to_shost(cdev); 3199 struct megasas_instance *instance = 3200 (struct megasas_instance *) shost->hostdata; 3201 u32 size; 3202 unsigned long dmachunk = CRASH_DMA_BUF_SIZE; 3203 unsigned long chunk_left_bytes; 3204 unsigned long src_addr; 3205 unsigned long flags; 3206 u32 buff_offset; 3207 3208 spin_lock_irqsave(&instance->crashdump_lock, flags); 3209 buff_offset = instance->fw_crash_buffer_offset; 3210 if (!instance->crash_dump_buf && 3211 !((instance->fw_crash_state == AVAILABLE) || 3212 (instance->fw_crash_state == COPYING))) { 3213 dev_err(&instance->pdev->dev, 3214 "Firmware crash dump is not available\n"); 3215 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3216 return -EINVAL; 3217 } 3218 3219 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { 3220 dev_err(&instance->pdev->dev, 3221 "Firmware crash dump offset is out of range\n"); 3222 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3223 return 0; 3224 } 3225 3226 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; 3227 chunk_left_bytes = dmachunk - (buff_offset % dmachunk); 3228 size = (size > chunk_left_bytes) ? chunk_left_bytes : size; 3229 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; 3230 3231 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + 3232 (buff_offset % dmachunk); 3233 memcpy(buf, (void *)src_addr, size); 3234 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3235 3236 return size; 3237 } 3238 3239 static ssize_t 3240 fw_crash_buffer_size_show(struct device *cdev, 3241 struct device_attribute *attr, char *buf) 3242 { 3243 struct Scsi_Host *shost = class_to_shost(cdev); 3244 struct megasas_instance *instance = 3245 (struct megasas_instance *) shost->hostdata; 3246 3247 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) 3248 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); 3249 } 3250 3251 static ssize_t 3252 fw_crash_state_store(struct device *cdev, 3253 struct device_attribute *attr, const char *buf, size_t count) 3254 { 3255 struct Scsi_Host *shost = class_to_shost(cdev); 3256 struct megasas_instance *instance = 3257 (struct megasas_instance *) shost->hostdata; 3258 int val = 0; 3259 unsigned long flags; 3260 3261 if (kstrtoint(buf, 0, &val) != 0) 3262 return -EINVAL; 3263 3264 if ((val <= AVAILABLE || val > COPY_ERROR)) { 3265 dev_err(&instance->pdev->dev, "application updates invalid " 3266 "firmware crash state\n"); 3267 return -EINVAL; 3268 } 3269 3270 instance->fw_crash_state = val; 3271 3272 if ((val == COPIED) || (val == COPY_ERROR)) { 3273 spin_lock_irqsave(&instance->crashdump_lock, flags); 3274 megasas_free_host_crash_buffer(instance); 3275 spin_unlock_irqrestore(&instance->crashdump_lock, flags); 3276 if (val == COPY_ERROR) 3277 dev_info(&instance->pdev->dev, "application failed to " 3278 "copy Firmware crash dump\n"); 3279 else 3280 dev_info(&instance->pdev->dev, "Firmware crash dump " 3281 "copied successfully\n"); 3282 } 3283 return strlen(buf); 3284 } 3285 3286 static ssize_t 3287 fw_crash_state_show(struct device *cdev, 3288 struct device_attribute *attr, char *buf) 3289 { 3290 struct Scsi_Host *shost = class_to_shost(cdev); 3291 struct megasas_instance *instance = 3292 (struct megasas_instance *) shost->hostdata; 3293 3294 return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); 3295 } 3296 3297 static ssize_t 3298 page_size_show(struct device *cdev, 3299 struct device_attribute *attr, char *buf) 3300 { 3301 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); 3302 } 3303 3304 static ssize_t 3305 ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, 3306 char *buf) 3307 { 3308 struct Scsi_Host *shost = class_to_shost(cdev); 3309 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3310 3311 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); 3312 } 3313 3314 static ssize_t 3315 fw_cmds_outstanding_show(struct device *cdev, 3316 struct device_attribute *attr, char *buf) 3317 { 3318 struct Scsi_Host *shost = class_to_shost(cdev); 3319 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3320 3321 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding)); 3322 } 3323 3324 static ssize_t 3325 enable_sdev_max_qd_show(struct device *cdev, 3326 struct device_attribute *attr, char *buf) 3327 { 3328 struct Scsi_Host *shost = class_to_shost(cdev); 3329 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3330 3331 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd); 3332 } 3333 3334 static ssize_t 3335 enable_sdev_max_qd_store(struct device *cdev, 3336 struct device_attribute *attr, const char *buf, size_t count) 3337 { 3338 struct Scsi_Host *shost = class_to_shost(cdev); 3339 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; 3340 u32 val = 0; 3341 bool is_target_prop; 3342 int ret_target_prop = DCMD_FAILED; 3343 struct scsi_device *sdev; 3344 3345 if (kstrtou32(buf, 0, &val) != 0) { 3346 pr_err("megasas: could not set enable_sdev_max_qd\n"); 3347 return -EINVAL; 3348 } 3349 3350 mutex_lock(&instance->reset_mutex); 3351 if (val) 3352 instance->enable_sdev_max_qd = true; 3353 else 3354 instance->enable_sdev_max_qd = false; 3355 3356 shost_for_each_device(sdev, shost) { 3357 ret_target_prop = megasas_get_target_prop(instance, sdev); 3358 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false; 3359 megasas_set_fw_assisted_qd(sdev, is_target_prop); 3360 } 3361 mutex_unlock(&instance->reset_mutex); 3362 3363 return strlen(buf); 3364 } 3365 3366 static ssize_t 3367 dump_system_regs_show(struct device *cdev, 3368 struct device_attribute *attr, char *buf) 3369 { 3370 struct Scsi_Host *shost = class_to_shost(cdev); 3371 struct megasas_instance *instance = 3372 (struct megasas_instance *)shost->hostdata; 3373 3374 return megasas_dump_sys_regs(instance->reg_set, buf); 3375 } 3376 3377 static ssize_t 3378 raid_map_id_show(struct device *cdev, struct device_attribute *attr, 3379 char *buf) 3380 { 3381 struct Scsi_Host *shost = class_to_shost(cdev); 3382 struct megasas_instance *instance = 3383 (struct megasas_instance *)shost->hostdata; 3384 3385 return snprintf(buf, PAGE_SIZE, "%ld\n", 3386 (unsigned long)instance->map_id); 3387 } 3388 3389 static DEVICE_ATTR_RW(fw_crash_buffer); 3390 static DEVICE_ATTR_RO(fw_crash_buffer_size); 3391 static DEVICE_ATTR_RW(fw_crash_state); 3392 static DEVICE_ATTR_RO(page_size); 3393 static DEVICE_ATTR_RO(ldio_outstanding); 3394 static DEVICE_ATTR_RO(fw_cmds_outstanding); 3395 static DEVICE_ATTR_RW(enable_sdev_max_qd); 3396 static DEVICE_ATTR_RO(dump_system_regs); 3397 static DEVICE_ATTR_RO(raid_map_id); 3398 3399 static struct device_attribute *megaraid_host_attrs[] = { 3400 &dev_attr_fw_crash_buffer_size, 3401 &dev_attr_fw_crash_buffer, 3402 &dev_attr_fw_crash_state, 3403 &dev_attr_page_size, 3404 &dev_attr_ldio_outstanding, 3405 &dev_attr_fw_cmds_outstanding, 3406 &dev_attr_enable_sdev_max_qd, 3407 &dev_attr_dump_system_regs, 3408 &dev_attr_raid_map_id, 3409 NULL, 3410 }; 3411 3412 /* 3413 * Scsi host template for megaraid_sas driver 3414 */ 3415 static struct scsi_host_template megasas_template = { 3416 3417 .module = THIS_MODULE, 3418 .name = "Avago SAS based MegaRAID driver", 3419 .proc_name = "megaraid_sas", 3420 .slave_configure = megasas_slave_configure, 3421 .slave_alloc = megasas_slave_alloc, 3422 .slave_destroy = megasas_slave_destroy, 3423 .queuecommand = megasas_queue_command, 3424 .eh_target_reset_handler = megasas_reset_target, 3425 .eh_abort_handler = megasas_task_abort, 3426 .eh_host_reset_handler = megasas_reset_bus_host, 3427 .eh_timed_out = megasas_reset_timer, 3428 .shost_attrs = megaraid_host_attrs, 3429 .bios_param = megasas_bios_param, 3430 .change_queue_depth = scsi_change_queue_depth, 3431 .max_segment_size = 0xffffffff, 3432 }; 3433 3434 /** 3435 * megasas_complete_int_cmd - Completes an internal command 3436 * @instance: Adapter soft state 3437 * @cmd: Command to be completed 3438 * 3439 * The megasas_issue_blocked_cmd() function waits for a command to complete 3440 * after it issues a command. This function wakes up that waiting routine by 3441 * calling wake_up() on the wait queue. 3442 */ 3443 static void 3444 megasas_complete_int_cmd(struct megasas_instance *instance, 3445 struct megasas_cmd *cmd) 3446 { 3447 if (cmd->cmd_status_drv == DCMD_INIT) 3448 cmd->cmd_status_drv = 3449 (cmd->frame->io.cmd_status == MFI_STAT_OK) ? 3450 DCMD_SUCCESS : DCMD_FAILED; 3451 3452 wake_up(&instance->int_cmd_wait_q); 3453 } 3454 3455 /** 3456 * megasas_complete_abort - Completes aborting a command 3457 * @instance: Adapter soft state 3458 * @cmd: Cmd that was issued to abort another cmd 3459 * 3460 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q 3461 * after it issues an abort on a previously issued command. This function 3462 * wakes up all functions waiting on the same wait queue. 3463 */ 3464 static void 3465 megasas_complete_abort(struct megasas_instance *instance, 3466 struct megasas_cmd *cmd) 3467 { 3468 if (cmd->sync_cmd) { 3469 cmd->sync_cmd = 0; 3470 cmd->cmd_status_drv = DCMD_SUCCESS; 3471 wake_up(&instance->abort_cmd_wait_q); 3472 } 3473 } 3474 3475 /** 3476 * megasas_complete_cmd - Completes a command 3477 * @instance: Adapter soft state 3478 * @cmd: Command to be completed 3479 * @alt_status: If non-zero, use this value as status to 3480 * SCSI mid-layer instead of the value returned 3481 * by the FW. This should be used if caller wants 3482 * an alternate status (as in the case of aborted 3483 * commands) 3484 */ 3485 void 3486 megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, 3487 u8 alt_status) 3488 { 3489 int exception = 0; 3490 struct megasas_header *hdr = &cmd->frame->hdr; 3491 unsigned long flags; 3492 struct fusion_context *fusion = instance->ctrl_context; 3493 u32 opcode, status; 3494 3495 /* flag for the retry reset */ 3496 cmd->retry_for_fw_reset = 0; 3497 3498 if (cmd->scmd) 3499 cmd->scmd->SCp.ptr = NULL; 3500 3501 switch (hdr->cmd) { 3502 case MFI_CMD_INVALID: 3503 /* Some older 1068 controller FW may keep a pended 3504 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel 3505 when booting the kdump kernel. Ignore this command to 3506 prevent a kernel panic on shutdown of the kdump kernel. */ 3507 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " 3508 "completed\n"); 3509 dev_warn(&instance->pdev->dev, "If you have a controller " 3510 "other than PERC5, please upgrade your firmware\n"); 3511 break; 3512 case MFI_CMD_PD_SCSI_IO: 3513 case MFI_CMD_LD_SCSI_IO: 3514 3515 /* 3516 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been 3517 * issued either through an IO path or an IOCTL path. If it 3518 * was via IOCTL, we will send it to internal completion. 3519 */ 3520 if (cmd->sync_cmd) { 3521 cmd->sync_cmd = 0; 3522 megasas_complete_int_cmd(instance, cmd); 3523 break; 3524 } 3525 fallthrough; 3526 3527 case MFI_CMD_LD_READ: 3528 case MFI_CMD_LD_WRITE: 3529 3530 if (alt_status) { 3531 cmd->scmd->result = alt_status << 16; 3532 exception = 1; 3533 } 3534 3535 if (exception) { 3536 3537 atomic_dec(&instance->fw_outstanding); 3538 3539 scsi_dma_unmap(cmd->scmd); 3540 cmd->scmd->scsi_done(cmd->scmd); 3541 megasas_return_cmd(instance, cmd); 3542 3543 break; 3544 } 3545 3546 switch (hdr->cmd_status) { 3547 3548 case MFI_STAT_OK: 3549 cmd->scmd->result = DID_OK << 16; 3550 break; 3551 3552 case MFI_STAT_SCSI_IO_FAILED: 3553 case MFI_STAT_LD_INIT_IN_PROGRESS: 3554 cmd->scmd->result = 3555 (DID_ERROR << 16) | hdr->scsi_status; 3556 break; 3557 3558 case MFI_STAT_SCSI_DONE_WITH_ERROR: 3559 3560 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; 3561 3562 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { 3563 memset(cmd->scmd->sense_buffer, 0, 3564 SCSI_SENSE_BUFFERSIZE); 3565 memcpy(cmd->scmd->sense_buffer, cmd->sense, 3566 hdr->sense_len); 3567 3568 cmd->scmd->result |= DRIVER_SENSE << 24; 3569 } 3570 3571 break; 3572 3573 case MFI_STAT_LD_OFFLINE: 3574 case MFI_STAT_DEVICE_NOT_FOUND: 3575 cmd->scmd->result = DID_BAD_TARGET << 16; 3576 break; 3577 3578 default: 3579 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", 3580 hdr->cmd_status); 3581 cmd->scmd->result = DID_ERROR << 16; 3582 break; 3583 } 3584 3585 atomic_dec(&instance->fw_outstanding); 3586 3587 scsi_dma_unmap(cmd->scmd); 3588 cmd->scmd->scsi_done(cmd->scmd); 3589 megasas_return_cmd(instance, cmd); 3590 3591 break; 3592 3593 case MFI_CMD_SMP: 3594 case MFI_CMD_STP: 3595 case MFI_CMD_NVME: 3596 case MFI_CMD_TOOLBOX: 3597 megasas_complete_int_cmd(instance, cmd); 3598 break; 3599 3600 case MFI_CMD_DCMD: 3601 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 3602 /* Check for LD map update */ 3603 if ((opcode == MR_DCMD_LD_MAP_GET_INFO) 3604 && (cmd->frame->dcmd.mbox.b[1] == 1)) { 3605 fusion->fast_path_io = 0; 3606 spin_lock_irqsave(instance->host->host_lock, flags); 3607 status = cmd->frame->hdr.cmd_status; 3608 instance->map_update_cmd = NULL; 3609 if (status != MFI_STAT_OK) { 3610 if (status != MFI_STAT_NOT_FOUND) 3611 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", 3612 cmd->frame->hdr.cmd_status); 3613 else { 3614 megasas_return_cmd(instance, cmd); 3615 spin_unlock_irqrestore( 3616 instance->host->host_lock, 3617 flags); 3618 break; 3619 } 3620 } 3621 3622 megasas_return_cmd(instance, cmd); 3623 3624 /* 3625 * Set fast path IO to ZERO. 3626 * Validate Map will set proper value. 3627 * Meanwhile all IOs will go as LD IO. 3628 */ 3629 if (status == MFI_STAT_OK && 3630 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) { 3631 instance->map_id++; 3632 fusion->fast_path_io = 1; 3633 } else { 3634 fusion->fast_path_io = 0; 3635 } 3636 3637 megasas_sync_map_info(instance); 3638 spin_unlock_irqrestore(instance->host->host_lock, 3639 flags); 3640 break; 3641 } 3642 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || 3643 opcode == MR_DCMD_CTRL_EVENT_GET) { 3644 spin_lock_irqsave(&poll_aen_lock, flags); 3645 megasas_poll_wait_aen = 0; 3646 spin_unlock_irqrestore(&poll_aen_lock, flags); 3647 } 3648 3649 /* FW has an updated PD sequence */ 3650 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && 3651 (cmd->frame->dcmd.mbox.b[0] == 1)) { 3652 3653 spin_lock_irqsave(instance->host->host_lock, flags); 3654 status = cmd->frame->hdr.cmd_status; 3655 instance->jbod_seq_cmd = NULL; 3656 megasas_return_cmd(instance, cmd); 3657 3658 if (status == MFI_STAT_OK) { 3659 instance->pd_seq_map_id++; 3660 /* Re-register a pd sync seq num cmd */ 3661 if (megasas_sync_pd_seq_num(instance, true)) 3662 instance->use_seqnum_jbod_fp = false; 3663 } else 3664 instance->use_seqnum_jbod_fp = false; 3665 3666 spin_unlock_irqrestore(instance->host->host_lock, flags); 3667 break; 3668 } 3669 3670 /* 3671 * See if got an event notification 3672 */ 3673 if (opcode == MR_DCMD_CTRL_EVENT_WAIT) 3674 megasas_service_aen(instance, cmd); 3675 else 3676 megasas_complete_int_cmd(instance, cmd); 3677 3678 break; 3679 3680 case MFI_CMD_ABORT: 3681 /* 3682 * Cmd issued to abort another cmd returned 3683 */ 3684 megasas_complete_abort(instance, cmd); 3685 break; 3686 3687 default: 3688 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", 3689 hdr->cmd); 3690 megasas_complete_int_cmd(instance, cmd); 3691 break; 3692 } 3693 } 3694 3695 /** 3696 * megasas_issue_pending_cmds_again - issue all pending cmds 3697 * in FW again because of the fw reset 3698 * @instance: Adapter soft state 3699 */ 3700 static inline void 3701 megasas_issue_pending_cmds_again(struct megasas_instance *instance) 3702 { 3703 struct megasas_cmd *cmd; 3704 struct list_head clist_local; 3705 union megasas_evt_class_locale class_locale; 3706 unsigned long flags; 3707 u32 seq_num; 3708 3709 INIT_LIST_HEAD(&clist_local); 3710 spin_lock_irqsave(&instance->hba_lock, flags); 3711 list_splice_init(&instance->internal_reset_pending_q, &clist_local); 3712 spin_unlock_irqrestore(&instance->hba_lock, flags); 3713 3714 while (!list_empty(&clist_local)) { 3715 cmd = list_entry((&clist_local)->next, 3716 struct megasas_cmd, list); 3717 list_del_init(&cmd->list); 3718 3719 if (cmd->sync_cmd || cmd->scmd) { 3720 dev_notice(&instance->pdev->dev, "command %p, %p:%d" 3721 "detected to be pending while HBA reset\n", 3722 cmd, cmd->scmd, cmd->sync_cmd); 3723 3724 cmd->retry_for_fw_reset++; 3725 3726 if (cmd->retry_for_fw_reset == 3) { 3727 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" 3728 "was tried multiple times during reset." 3729 "Shutting down the HBA\n", 3730 cmd, cmd->scmd, cmd->sync_cmd); 3731 instance->instancet->disable_intr(instance); 3732 atomic_set(&instance->fw_reset_no_pci_access, 1); 3733 megaraid_sas_kill_hba(instance); 3734 return; 3735 } 3736 } 3737 3738 if (cmd->sync_cmd == 1) { 3739 if (cmd->scmd) { 3740 dev_notice(&instance->pdev->dev, "unexpected" 3741 "cmd attached to internal command!\n"); 3742 } 3743 dev_notice(&instance->pdev->dev, "%p synchronous cmd" 3744 "on the internal reset queue," 3745 "issue it again.\n", cmd); 3746 cmd->cmd_status_drv = DCMD_INIT; 3747 instance->instancet->fire_cmd(instance, 3748 cmd->frame_phys_addr, 3749 0, instance->reg_set); 3750 } else if (cmd->scmd) { 3751 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" 3752 "detected on the internal queue, issue again.\n", 3753 cmd, cmd->scmd->cmnd[0]); 3754 3755 atomic_inc(&instance->fw_outstanding); 3756 instance->instancet->fire_cmd(instance, 3757 cmd->frame_phys_addr, 3758 cmd->frame_count-1, instance->reg_set); 3759 } else { 3760 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" 3761 "internal reset defer list while re-issue!!\n", 3762 cmd); 3763 } 3764 } 3765 3766 if (instance->aen_cmd) { 3767 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); 3768 megasas_return_cmd(instance, instance->aen_cmd); 3769 3770 instance->aen_cmd = NULL; 3771 } 3772 3773 /* 3774 * Initiate AEN (Asynchronous Event Notification) 3775 */ 3776 seq_num = instance->last_seq_num; 3777 class_locale.members.reserved = 0; 3778 class_locale.members.locale = MR_EVT_LOCALE_ALL; 3779 class_locale.members.class = MR_EVT_CLASS_DEBUG; 3780 3781 megasas_register_aen(instance, seq_num, class_locale.word); 3782 } 3783 3784 /* 3785 * Move the internal reset pending commands to a deferred queue. 3786 * 3787 * We move the commands pending at internal reset time to a 3788 * pending queue. This queue would be flushed after successful 3789 * completion of the internal reset sequence. if the internal reset 3790 * did not complete in time, the kernel reset handler would flush 3791 * these commands. 3792 */ 3793 static void 3794 megasas_internal_reset_defer_cmds(struct megasas_instance *instance) 3795 { 3796 struct megasas_cmd *cmd; 3797 int i; 3798 u16 max_cmd = instance->max_fw_cmds; 3799 u32 defer_index; 3800 unsigned long flags; 3801 3802 defer_index = 0; 3803 spin_lock_irqsave(&instance->mfi_pool_lock, flags); 3804 for (i = 0; i < max_cmd; i++) { 3805 cmd = instance->cmd_list[i]; 3806 if (cmd->sync_cmd == 1 || cmd->scmd) { 3807 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" 3808 "on the defer queue as internal\n", 3809 defer_index, cmd, cmd->sync_cmd, cmd->scmd); 3810 3811 if (!list_empty(&cmd->list)) { 3812 dev_notice(&instance->pdev->dev, "ERROR while" 3813 " moving this cmd:%p, %d %p, it was" 3814 "discovered on some list?\n", 3815 cmd, cmd->sync_cmd, cmd->scmd); 3816 3817 list_del_init(&cmd->list); 3818 } 3819 defer_index++; 3820 list_add_tail(&cmd->list, 3821 &instance->internal_reset_pending_q); 3822 } 3823 } 3824 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); 3825 } 3826 3827 3828 static void 3829 process_fw_state_change_wq(struct work_struct *work) 3830 { 3831 struct megasas_instance *instance = 3832 container_of(work, struct megasas_instance, work_init); 3833 u32 wait; 3834 unsigned long flags; 3835 3836 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { 3837 dev_notice(&instance->pdev->dev, "error, recovery st %x\n", 3838 atomic_read(&instance->adprecovery)); 3839 return ; 3840 } 3841 3842 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { 3843 dev_notice(&instance->pdev->dev, "FW detected to be in fault" 3844 "state, restarting it...\n"); 3845 3846 instance->instancet->disable_intr(instance); 3847 atomic_set(&instance->fw_outstanding, 0); 3848 3849 atomic_set(&instance->fw_reset_no_pci_access, 1); 3850 instance->instancet->adp_reset(instance, instance->reg_set); 3851 atomic_set(&instance->fw_reset_no_pci_access, 0); 3852 3853 dev_notice(&instance->pdev->dev, "FW restarted successfully," 3854 "initiating next stage...\n"); 3855 3856 dev_notice(&instance->pdev->dev, "HBA recovery state machine," 3857 "state 2 starting...\n"); 3858 3859 /* waiting for about 20 second before start the second init */ 3860 for (wait = 0; wait < 30; wait++) { 3861 msleep(1000); 3862 } 3863 3864 if (megasas_transition_to_ready(instance, 1)) { 3865 dev_notice(&instance->pdev->dev, "adapter not ready\n"); 3866 3867 atomic_set(&instance->fw_reset_no_pci_access, 1); 3868 megaraid_sas_kill_hba(instance); 3869 return ; 3870 } 3871 3872 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || 3873 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || 3874 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) 3875 ) { 3876 *instance->consumer = *instance->producer; 3877 } else { 3878 *instance->consumer = 0; 3879 *instance->producer = 0; 3880 } 3881 3882 megasas_issue_init_mfi(instance); 3883 3884 spin_lock_irqsave(&instance->hba_lock, flags); 3885 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 3886 spin_unlock_irqrestore(&instance->hba_lock, flags); 3887 instance->instancet->enable_intr(instance); 3888 3889 megasas_issue_pending_cmds_again(instance); 3890 instance->issuepend_done = 1; 3891 } 3892 } 3893 3894 /** 3895 * megasas_deplete_reply_queue - Processes all completed commands 3896 * @instance: Adapter soft state 3897 * @alt_status: Alternate status to be returned to 3898 * SCSI mid-layer instead of the status 3899 * returned by the FW 3900 * Note: this must be called with hba lock held 3901 */ 3902 static int 3903 megasas_deplete_reply_queue(struct megasas_instance *instance, 3904 u8 alt_status) 3905 { 3906 u32 mfiStatus; 3907 u32 fw_state; 3908 3909 if ((mfiStatus = instance->instancet->check_reset(instance, 3910 instance->reg_set)) == 1) { 3911 return IRQ_HANDLED; 3912 } 3913 3914 mfiStatus = instance->instancet->clear_intr(instance); 3915 if (mfiStatus == 0) { 3916 /* Hardware may not set outbound_intr_status in MSI-X mode */ 3917 if (!instance->msix_vectors) 3918 return IRQ_NONE; 3919 } 3920 3921 instance->mfiStatus = mfiStatus; 3922 3923 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { 3924 fw_state = instance->instancet->read_fw_status_reg( 3925 instance) & MFI_STATE_MASK; 3926 3927 if (fw_state != MFI_STATE_FAULT) { 3928 dev_notice(&instance->pdev->dev, "fw state:%x\n", 3929 fw_state); 3930 } 3931 3932 if ((fw_state == MFI_STATE_FAULT) && 3933 (instance->disableOnlineCtrlReset == 0)) { 3934 dev_notice(&instance->pdev->dev, "wait adp restart\n"); 3935 3936 if ((instance->pdev->device == 3937 PCI_DEVICE_ID_LSI_SAS1064R) || 3938 (instance->pdev->device == 3939 PCI_DEVICE_ID_DELL_PERC5) || 3940 (instance->pdev->device == 3941 PCI_DEVICE_ID_LSI_VERDE_ZCR)) { 3942 3943 *instance->consumer = 3944 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); 3945 } 3946 3947 3948 instance->instancet->disable_intr(instance); 3949 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); 3950 instance->issuepend_done = 0; 3951 3952 atomic_set(&instance->fw_outstanding, 0); 3953 megasas_internal_reset_defer_cmds(instance); 3954 3955 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", 3956 fw_state, atomic_read(&instance->adprecovery)); 3957 3958 schedule_work(&instance->work_init); 3959 return IRQ_HANDLED; 3960 3961 } else { 3962 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", 3963 fw_state, instance->disableOnlineCtrlReset); 3964 } 3965 } 3966 3967 tasklet_schedule(&instance->isr_tasklet); 3968 return IRQ_HANDLED; 3969 } 3970 3971 /** 3972 * megasas_isr - isr entry point 3973 * @irq: IRQ number 3974 * @devp: IRQ context address 3975 */ 3976 static irqreturn_t megasas_isr(int irq, void *devp) 3977 { 3978 struct megasas_irq_context *irq_context = devp; 3979 struct megasas_instance *instance = irq_context->instance; 3980 unsigned long flags; 3981 irqreturn_t rc; 3982 3983 if (atomic_read(&instance->fw_reset_no_pci_access)) 3984 return IRQ_HANDLED; 3985 3986 spin_lock_irqsave(&instance->hba_lock, flags); 3987 rc = megasas_deplete_reply_queue(instance, DID_OK); 3988 spin_unlock_irqrestore(&instance->hba_lock, flags); 3989 3990 return rc; 3991 } 3992 3993 /** 3994 * megasas_transition_to_ready - Move the FW to READY state 3995 * @instance: Adapter soft state 3996 * @ocr: Adapter reset state 3997 * 3998 * During the initialization, FW passes can potentially be in any one of 3999 * several possible states. If the FW in operational, waiting-for-handshake 4000 * states, driver must take steps to bring it to ready state. Otherwise, it 4001 * has to wait for the ready state. 4002 */ 4003 int 4004 megasas_transition_to_ready(struct megasas_instance *instance, int ocr) 4005 { 4006 int i; 4007 u8 max_wait; 4008 u32 fw_state; 4009 u32 abs_state, curr_abs_state; 4010 4011 abs_state = instance->instancet->read_fw_status_reg(instance); 4012 fw_state = abs_state & MFI_STATE_MASK; 4013 4014 if (fw_state != MFI_STATE_READY) 4015 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" 4016 " state\n"); 4017 4018 while (fw_state != MFI_STATE_READY) { 4019 4020 switch (fw_state) { 4021 4022 case MFI_STATE_FAULT: 4023 dev_printk(KERN_ERR, &instance->pdev->dev, 4024 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n", 4025 abs_state & MFI_STATE_FAULT_CODE, 4026 abs_state & MFI_STATE_FAULT_SUBCODE, __func__); 4027 if (ocr) { 4028 max_wait = MEGASAS_RESET_WAIT_TIME; 4029 break; 4030 } else { 4031 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4032 megasas_dump_reg_set(instance->reg_set); 4033 return -ENODEV; 4034 } 4035 4036 case MFI_STATE_WAIT_HANDSHAKE: 4037 /* 4038 * Set the CLR bit in inbound doorbell 4039 */ 4040 if ((instance->pdev->device == 4041 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4042 (instance->pdev->device == 4043 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4044 (instance->adapter_type != MFI_SERIES)) 4045 writel( 4046 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4047 &instance->reg_set->doorbell); 4048 else 4049 writel( 4050 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, 4051 &instance->reg_set->inbound_doorbell); 4052 4053 max_wait = MEGASAS_RESET_WAIT_TIME; 4054 break; 4055 4056 case MFI_STATE_BOOT_MESSAGE_PENDING: 4057 if ((instance->pdev->device == 4058 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4059 (instance->pdev->device == 4060 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4061 (instance->adapter_type != MFI_SERIES)) 4062 writel(MFI_INIT_HOTPLUG, 4063 &instance->reg_set->doorbell); 4064 else 4065 writel(MFI_INIT_HOTPLUG, 4066 &instance->reg_set->inbound_doorbell); 4067 4068 max_wait = MEGASAS_RESET_WAIT_TIME; 4069 break; 4070 4071 case MFI_STATE_OPERATIONAL: 4072 /* 4073 * Bring it to READY state; assuming max wait 10 secs 4074 */ 4075 instance->instancet->disable_intr(instance); 4076 if ((instance->pdev->device == 4077 PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 4078 (instance->pdev->device == 4079 PCI_DEVICE_ID_LSI_SAS0071SKINNY) || 4080 (instance->adapter_type != MFI_SERIES)) { 4081 writel(MFI_RESET_FLAGS, 4082 &instance->reg_set->doorbell); 4083 4084 if (instance->adapter_type != MFI_SERIES) { 4085 for (i = 0; i < (10 * 1000); i += 20) { 4086 if (megasas_readl( 4087 instance, 4088 &instance-> 4089 reg_set-> 4090 doorbell) & 1) 4091 msleep(20); 4092 else 4093 break; 4094 } 4095 } 4096 } else 4097 writel(MFI_RESET_FLAGS, 4098 &instance->reg_set->inbound_doorbell); 4099 4100 max_wait = MEGASAS_RESET_WAIT_TIME; 4101 break; 4102 4103 case MFI_STATE_UNDEFINED: 4104 /* 4105 * This state should not last for more than 2 seconds 4106 */ 4107 max_wait = MEGASAS_RESET_WAIT_TIME; 4108 break; 4109 4110 case MFI_STATE_BB_INIT: 4111 max_wait = MEGASAS_RESET_WAIT_TIME; 4112 break; 4113 4114 case MFI_STATE_FW_INIT: 4115 max_wait = MEGASAS_RESET_WAIT_TIME; 4116 break; 4117 4118 case MFI_STATE_FW_INIT_2: 4119 max_wait = MEGASAS_RESET_WAIT_TIME; 4120 break; 4121 4122 case MFI_STATE_DEVICE_SCAN: 4123 max_wait = MEGASAS_RESET_WAIT_TIME; 4124 break; 4125 4126 case MFI_STATE_FLUSH_CACHE: 4127 max_wait = MEGASAS_RESET_WAIT_TIME; 4128 break; 4129 4130 default: 4131 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", 4132 fw_state); 4133 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4134 megasas_dump_reg_set(instance->reg_set); 4135 return -ENODEV; 4136 } 4137 4138 /* 4139 * The cur_state should not last for more than max_wait secs 4140 */ 4141 for (i = 0; i < max_wait * 50; i++) { 4142 curr_abs_state = instance->instancet-> 4143 read_fw_status_reg(instance); 4144 4145 if (abs_state == curr_abs_state) { 4146 msleep(20); 4147 } else 4148 break; 4149 } 4150 4151 /* 4152 * Return error if fw_state hasn't changed after max_wait 4153 */ 4154 if (curr_abs_state == abs_state) { 4155 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " 4156 "in %d secs\n", fw_state, max_wait); 4157 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n"); 4158 megasas_dump_reg_set(instance->reg_set); 4159 return -ENODEV; 4160 } 4161 4162 abs_state = curr_abs_state; 4163 fw_state = curr_abs_state & MFI_STATE_MASK; 4164 } 4165 dev_info(&instance->pdev->dev, "FW now in Ready state\n"); 4166 4167 return 0; 4168 } 4169 4170 /** 4171 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool 4172 * @instance: Adapter soft state 4173 */ 4174 static void megasas_teardown_frame_pool(struct megasas_instance *instance) 4175 { 4176 int i; 4177 u16 max_cmd = instance->max_mfi_cmds; 4178 struct megasas_cmd *cmd; 4179 4180 if (!instance->frame_dma_pool) 4181 return; 4182 4183 /* 4184 * Return all frames to pool 4185 */ 4186 for (i = 0; i < max_cmd; i++) { 4187 4188 cmd = instance->cmd_list[i]; 4189 4190 if (cmd->frame) 4191 dma_pool_free(instance->frame_dma_pool, cmd->frame, 4192 cmd->frame_phys_addr); 4193 4194 if (cmd->sense) 4195 dma_pool_free(instance->sense_dma_pool, cmd->sense, 4196 cmd->sense_phys_addr); 4197 } 4198 4199 /* 4200 * Now destroy the pool itself 4201 */ 4202 dma_pool_destroy(instance->frame_dma_pool); 4203 dma_pool_destroy(instance->sense_dma_pool); 4204 4205 instance->frame_dma_pool = NULL; 4206 instance->sense_dma_pool = NULL; 4207 } 4208 4209 /** 4210 * megasas_create_frame_pool - Creates DMA pool for cmd frames 4211 * @instance: Adapter soft state 4212 * 4213 * Each command packet has an embedded DMA memory buffer that is used for 4214 * filling MFI frame and the SG list that immediately follows the frame. This 4215 * function creates those DMA memory buffers for each command packet by using 4216 * PCI pool facility. 4217 */ 4218 static int megasas_create_frame_pool(struct megasas_instance *instance) 4219 { 4220 int i; 4221 u16 max_cmd; 4222 u32 frame_count; 4223 struct megasas_cmd *cmd; 4224 4225 max_cmd = instance->max_mfi_cmds; 4226 4227 /* 4228 * For MFI controllers. 4229 * max_num_sge = 60 4230 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) 4231 * Total 960 byte (15 MFI frame of 64 byte) 4232 * 4233 * Fusion adapter require only 3 extra frame. 4234 * max_num_sge = 16 (defined as MAX_IOCTL_SGE) 4235 * max_sge_sz = 12 byte (sizeof megasas_sge64) 4236 * Total 192 byte (3 MFI frame of 64 byte) 4237 */ 4238 frame_count = (instance->adapter_type == MFI_SERIES) ? 4239 (15 + 1) : (3 + 1); 4240 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count; 4241 /* 4242 * Use DMA pool facility provided by PCI layer 4243 */ 4244 instance->frame_dma_pool = dma_pool_create("megasas frame pool", 4245 &instance->pdev->dev, 4246 instance->mfi_frame_size, 256, 0); 4247 4248 if (!instance->frame_dma_pool) { 4249 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); 4250 return -ENOMEM; 4251 } 4252 4253 instance->sense_dma_pool = dma_pool_create("megasas sense pool", 4254 &instance->pdev->dev, 128, 4255 4, 0); 4256 4257 if (!instance->sense_dma_pool) { 4258 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); 4259 4260 dma_pool_destroy(instance->frame_dma_pool); 4261 instance->frame_dma_pool = NULL; 4262 4263 return -ENOMEM; 4264 } 4265 4266 /* 4267 * Allocate and attach a frame to each of the commands in cmd_list. 4268 * By making cmd->index as the context instead of the &cmd, we can 4269 * always use 32bit context regardless of the architecture 4270 */ 4271 for (i = 0; i < max_cmd; i++) { 4272 4273 cmd = instance->cmd_list[i]; 4274 4275 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool, 4276 GFP_KERNEL, &cmd->frame_phys_addr); 4277 4278 cmd->sense = dma_pool_alloc(instance->sense_dma_pool, 4279 GFP_KERNEL, &cmd->sense_phys_addr); 4280 4281 /* 4282 * megasas_teardown_frame_pool() takes care of freeing 4283 * whatever has been allocated 4284 */ 4285 if (!cmd->frame || !cmd->sense) { 4286 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n"); 4287 megasas_teardown_frame_pool(instance); 4288 return -ENOMEM; 4289 } 4290 4291 cmd->frame->io.context = cpu_to_le32(cmd->index); 4292 cmd->frame->io.pad_0 = 0; 4293 if ((instance->adapter_type == MFI_SERIES) && reset_devices) 4294 cmd->frame->hdr.cmd = MFI_CMD_INVALID; 4295 } 4296 4297 return 0; 4298 } 4299 4300 /** 4301 * megasas_free_cmds - Free all the cmds in the free cmd pool 4302 * @instance: Adapter soft state 4303 */ 4304 void megasas_free_cmds(struct megasas_instance *instance) 4305 { 4306 int i; 4307 4308 /* First free the MFI frame pool */ 4309 megasas_teardown_frame_pool(instance); 4310 4311 /* Free all the commands in the cmd_list */ 4312 for (i = 0; i < instance->max_mfi_cmds; i++) 4313 4314 kfree(instance->cmd_list[i]); 4315 4316 /* Free the cmd_list buffer itself */ 4317 kfree(instance->cmd_list); 4318 instance->cmd_list = NULL; 4319 4320 INIT_LIST_HEAD(&instance->cmd_pool); 4321 } 4322 4323 /** 4324 * megasas_alloc_cmds - Allocates the command packets 4325 * @instance: Adapter soft state 4326 * 4327 * Each command that is issued to the FW, whether IO commands from the OS or 4328 * internal commands like IOCTLs, are wrapped in local data structure called 4329 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to 4330 * the FW. 4331 * 4332 * Each frame has a 32-bit field called context (tag). This context is used 4333 * to get back the megasas_cmd from the frame when a frame gets completed in 4334 * the ISR. Typically the address of the megasas_cmd itself would be used as 4335 * the context. But we wanted to keep the differences between 32 and 64 bit 4336 * systems to the mininum. We always use 32 bit integers for the context. In 4337 * this driver, the 32 bit values are the indices into an array cmd_list. 4338 * This array is used only to look up the megasas_cmd given the context. The 4339 * free commands themselves are maintained in a linked list called cmd_pool. 4340 */ 4341 int megasas_alloc_cmds(struct megasas_instance *instance) 4342 { 4343 int i; 4344 int j; 4345 u16 max_cmd; 4346 struct megasas_cmd *cmd; 4347 4348 max_cmd = instance->max_mfi_cmds; 4349 4350 /* 4351 * instance->cmd_list is an array of struct megasas_cmd pointers. 4352 * Allocate the dynamic array first and then allocate individual 4353 * commands. 4354 */ 4355 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); 4356 4357 if (!instance->cmd_list) { 4358 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); 4359 return -ENOMEM; 4360 } 4361 4362 memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); 4363 4364 for (i = 0; i < max_cmd; i++) { 4365 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), 4366 GFP_KERNEL); 4367 4368 if (!instance->cmd_list[i]) { 4369 4370 for (j = 0; j < i; j++) 4371 kfree(instance->cmd_list[j]); 4372 4373 kfree(instance->cmd_list); 4374 instance->cmd_list = NULL; 4375 4376 return -ENOMEM; 4377 } 4378 } 4379 4380 for (i = 0; i < max_cmd; i++) { 4381 cmd = instance->cmd_list[i]; 4382 memset(cmd, 0, sizeof(struct megasas_cmd)); 4383 cmd->index = i; 4384 cmd->scmd = NULL; 4385 cmd->instance = instance; 4386 4387 list_add_tail(&cmd->list, &instance->cmd_pool); 4388 } 4389 4390 /* 4391 * Create a frame pool and assign one frame to each cmd 4392 */ 4393 if (megasas_create_frame_pool(instance)) { 4394 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); 4395 megasas_free_cmds(instance); 4396 return -ENOMEM; 4397 } 4398 4399 return 0; 4400 } 4401 4402 /* 4403 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. 4404 * @instance: Adapter soft state 4405 * 4406 * Return 0 for only Fusion adapter, if driver load/unload is not in progress 4407 * or FW is not under OCR. 4408 */ 4409 inline int 4410 dcmd_timeout_ocr_possible(struct megasas_instance *instance) { 4411 4412 if (instance->adapter_type == MFI_SERIES) 4413 return KILL_ADAPTER; 4414 else if (instance->unload || 4415 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE, 4416 &instance->reset_flags)) 4417 return IGNORE_TIMEOUT; 4418 else 4419 return INITIATE_OCR; 4420 } 4421 4422 static void 4423 megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev) 4424 { 4425 int ret; 4426 struct megasas_cmd *cmd; 4427 struct megasas_dcmd_frame *dcmd; 4428 4429 struct MR_PRIV_DEVICE *mr_device_priv_data; 4430 u16 device_id = 0; 4431 4432 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; 4433 cmd = megasas_get_cmd(instance); 4434 4435 if (!cmd) { 4436 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); 4437 return; 4438 } 4439 4440 dcmd = &cmd->frame->dcmd; 4441 4442 memset(instance->pd_info, 0, sizeof(*instance->pd_info)); 4443 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4444 4445 dcmd->mbox.s[0] = cpu_to_le16(device_id); 4446 dcmd->cmd = MFI_CMD_DCMD; 4447 dcmd->cmd_status = 0xFF; 4448 dcmd->sge_count = 1; 4449 dcmd->flags = MFI_FRAME_DIR_READ; 4450 dcmd->timeout = 0; 4451 dcmd->pad_0 = 0; 4452 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); 4453 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); 4454 4455 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h, 4456 sizeof(struct MR_PD_INFO)); 4457 4458 if ((instance->adapter_type != MFI_SERIES) && 4459 !instance->mask_interrupts) 4460 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4461 else 4462 ret = megasas_issue_polled(instance, cmd); 4463 4464 switch (ret) { 4465 case DCMD_SUCCESS: 4466 mr_device_priv_data = sdev->hostdata; 4467 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType); 4468 mr_device_priv_data->interface_type = 4469 instance->pd_info->state.ddf.pdType.intf; 4470 break; 4471 4472 case DCMD_TIMEOUT: 4473 4474 switch (dcmd_timeout_ocr_possible(instance)) { 4475 case INITIATE_OCR: 4476 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4477 mutex_unlock(&instance->reset_mutex); 4478 megasas_reset_fusion(instance->host, 4479 MFI_IO_TIMEOUT_OCR); 4480 mutex_lock(&instance->reset_mutex); 4481 break; 4482 case KILL_ADAPTER: 4483 megaraid_sas_kill_hba(instance); 4484 break; 4485 case IGNORE_TIMEOUT: 4486 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4487 __func__, __LINE__); 4488 break; 4489 } 4490 4491 break; 4492 } 4493 4494 if (ret != DCMD_TIMEOUT) 4495 megasas_return_cmd(instance, cmd); 4496 4497 return; 4498 } 4499 /* 4500 * megasas_get_pd_list_info - Returns FW's pd_list structure 4501 * @instance: Adapter soft state 4502 * @pd_list: pd_list structure 4503 * 4504 * Issues an internal command (DCMD) to get the FW's controller PD 4505 * list structure. This information is mainly used to find out SYSTEM 4506 * supported by the FW. 4507 */ 4508 static int 4509 megasas_get_pd_list(struct megasas_instance *instance) 4510 { 4511 int ret = 0, pd_index = 0; 4512 struct megasas_cmd *cmd; 4513 struct megasas_dcmd_frame *dcmd; 4514 struct MR_PD_LIST *ci; 4515 struct MR_PD_ADDRESS *pd_addr; 4516 4517 if (instance->pd_list_not_supported) { 4518 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4519 "not supported by firmware\n"); 4520 return ret; 4521 } 4522 4523 ci = instance->pd_list_buf; 4524 4525 cmd = megasas_get_cmd(instance); 4526 4527 if (!cmd) { 4528 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); 4529 return -ENOMEM; 4530 } 4531 4532 dcmd = &cmd->frame->dcmd; 4533 4534 memset(ci, 0, sizeof(*ci)); 4535 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4536 4537 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; 4538 dcmd->mbox.b[1] = 0; 4539 dcmd->cmd = MFI_CMD_DCMD; 4540 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4541 dcmd->sge_count = 1; 4542 dcmd->flags = MFI_FRAME_DIR_READ; 4543 dcmd->timeout = 0; 4544 dcmd->pad_0 = 0; 4545 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); 4546 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); 4547 4548 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h, 4549 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST))); 4550 4551 if ((instance->adapter_type != MFI_SERIES) && 4552 !instance->mask_interrupts) 4553 ret = megasas_issue_blocked_cmd(instance, cmd, 4554 MFI_IO_TIMEOUT_SECS); 4555 else 4556 ret = megasas_issue_polled(instance, cmd); 4557 4558 switch (ret) { 4559 case DCMD_FAILED: 4560 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " 4561 "failed/not supported by firmware\n"); 4562 4563 if (instance->adapter_type != MFI_SERIES) 4564 megaraid_sas_kill_hba(instance); 4565 else 4566 instance->pd_list_not_supported = 1; 4567 break; 4568 case DCMD_TIMEOUT: 4569 4570 switch (dcmd_timeout_ocr_possible(instance)) { 4571 case INITIATE_OCR: 4572 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4573 /* 4574 * DCMD failed from AEN path. 4575 * AEN path already hold reset_mutex to avoid PCI access 4576 * while OCR is in progress. 4577 */ 4578 mutex_unlock(&instance->reset_mutex); 4579 megasas_reset_fusion(instance->host, 4580 MFI_IO_TIMEOUT_OCR); 4581 mutex_lock(&instance->reset_mutex); 4582 break; 4583 case KILL_ADAPTER: 4584 megaraid_sas_kill_hba(instance); 4585 break; 4586 case IGNORE_TIMEOUT: 4587 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", 4588 __func__, __LINE__); 4589 break; 4590 } 4591 4592 break; 4593 4594 case DCMD_SUCCESS: 4595 pd_addr = ci->addr; 4596 if (megasas_dbg_lvl & LD_PD_DEBUG) 4597 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n", 4598 __func__, le32_to_cpu(ci->count)); 4599 4600 if ((le32_to_cpu(ci->count) > 4601 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) 4602 break; 4603 4604 memset(instance->local_pd_list, 0, 4605 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4606 4607 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { 4608 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = 4609 le16_to_cpu(pd_addr->deviceId); 4610 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = 4611 pd_addr->scsiDevType; 4612 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = 4613 MR_PD_STATE_SYSTEM; 4614 if (megasas_dbg_lvl & LD_PD_DEBUG) 4615 dev_info(&instance->pdev->dev, 4616 "PD%d: targetID: 0x%03x deviceType:0x%x\n", 4617 pd_index, le16_to_cpu(pd_addr->deviceId), 4618 pd_addr->scsiDevType); 4619 pd_addr++; 4620 } 4621 4622 memcpy(instance->pd_list, instance->local_pd_list, 4623 sizeof(instance->pd_list)); 4624 break; 4625 4626 } 4627 4628 if (ret != DCMD_TIMEOUT) 4629 megasas_return_cmd(instance, cmd); 4630 4631 return ret; 4632 } 4633 4634 /* 4635 * megasas_get_ld_list_info - Returns FW's ld_list structure 4636 * @instance: Adapter soft state 4637 * @ld_list: ld_list structure 4638 * 4639 * Issues an internal command (DCMD) to get the FW's controller PD 4640 * list structure. This information is mainly used to find out SYSTEM 4641 * supported by the FW. 4642 */ 4643 static int 4644 megasas_get_ld_list(struct megasas_instance *instance) 4645 { 4646 int ret = 0, ld_index = 0, ids = 0; 4647 struct megasas_cmd *cmd; 4648 struct megasas_dcmd_frame *dcmd; 4649 struct MR_LD_LIST *ci; 4650 dma_addr_t ci_h = 0; 4651 u32 ld_count; 4652 4653 ci = instance->ld_list_buf; 4654 ci_h = instance->ld_list_buf_h; 4655 4656 cmd = megasas_get_cmd(instance); 4657 4658 if (!cmd) { 4659 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); 4660 return -ENOMEM; 4661 } 4662 4663 dcmd = &cmd->frame->dcmd; 4664 4665 memset(ci, 0, sizeof(*ci)); 4666 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4667 4668 if (instance->supportmax256vd) 4669 dcmd->mbox.b[0] = 1; 4670 dcmd->cmd = MFI_CMD_DCMD; 4671 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4672 dcmd->sge_count = 1; 4673 dcmd->flags = MFI_FRAME_DIR_READ; 4674 dcmd->timeout = 0; 4675 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); 4676 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); 4677 dcmd->pad_0 = 0; 4678 4679 megasas_set_dma_settings(instance, dcmd, ci_h, 4680 sizeof(struct MR_LD_LIST)); 4681 4682 if ((instance->adapter_type != MFI_SERIES) && 4683 !instance->mask_interrupts) 4684 ret = megasas_issue_blocked_cmd(instance, cmd, 4685 MFI_IO_TIMEOUT_SECS); 4686 else 4687 ret = megasas_issue_polled(instance, cmd); 4688 4689 ld_count = le32_to_cpu(ci->ldCount); 4690 4691 switch (ret) { 4692 case DCMD_FAILED: 4693 megaraid_sas_kill_hba(instance); 4694 break; 4695 case DCMD_TIMEOUT: 4696 4697 switch (dcmd_timeout_ocr_possible(instance)) { 4698 case INITIATE_OCR: 4699 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4700 /* 4701 * DCMD failed from AEN path. 4702 * AEN path already hold reset_mutex to avoid PCI access 4703 * while OCR is in progress. 4704 */ 4705 mutex_unlock(&instance->reset_mutex); 4706 megasas_reset_fusion(instance->host, 4707 MFI_IO_TIMEOUT_OCR); 4708 mutex_lock(&instance->reset_mutex); 4709 break; 4710 case KILL_ADAPTER: 4711 megaraid_sas_kill_hba(instance); 4712 break; 4713 case IGNORE_TIMEOUT: 4714 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4715 __func__, __LINE__); 4716 break; 4717 } 4718 4719 break; 4720 4721 case DCMD_SUCCESS: 4722 if (megasas_dbg_lvl & LD_PD_DEBUG) 4723 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4724 __func__, ld_count); 4725 4726 if (ld_count > instance->fw_supported_vd_count) 4727 break; 4728 4729 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4730 4731 for (ld_index = 0; ld_index < ld_count; ld_index++) { 4732 if (ci->ldList[ld_index].state != 0) { 4733 ids = ci->ldList[ld_index].ref.targetId; 4734 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; 4735 if (megasas_dbg_lvl & LD_PD_DEBUG) 4736 dev_info(&instance->pdev->dev, 4737 "LD%d: targetID: 0x%03x\n", 4738 ld_index, ids); 4739 } 4740 } 4741 4742 break; 4743 } 4744 4745 if (ret != DCMD_TIMEOUT) 4746 megasas_return_cmd(instance, cmd); 4747 4748 return ret; 4749 } 4750 4751 /** 4752 * megasas_ld_list_query - Returns FW's ld_list structure 4753 * @instance: Adapter soft state 4754 * @query_type: ld_list structure type 4755 * 4756 * Issues an internal command (DCMD) to get the FW's controller PD 4757 * list structure. This information is mainly used to find out SYSTEM 4758 * supported by the FW. 4759 */ 4760 static int 4761 megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) 4762 { 4763 int ret = 0, ld_index = 0, ids = 0; 4764 struct megasas_cmd *cmd; 4765 struct megasas_dcmd_frame *dcmd; 4766 struct MR_LD_TARGETID_LIST *ci; 4767 dma_addr_t ci_h = 0; 4768 u32 tgtid_count; 4769 4770 ci = instance->ld_targetid_list_buf; 4771 ci_h = instance->ld_targetid_list_buf_h; 4772 4773 cmd = megasas_get_cmd(instance); 4774 4775 if (!cmd) { 4776 dev_warn(&instance->pdev->dev, 4777 "megasas_ld_list_query: Failed to get cmd\n"); 4778 return -ENOMEM; 4779 } 4780 4781 dcmd = &cmd->frame->dcmd; 4782 4783 memset(ci, 0, sizeof(*ci)); 4784 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4785 4786 dcmd->mbox.b[0] = query_type; 4787 if (instance->supportmax256vd) 4788 dcmd->mbox.b[2] = 1; 4789 4790 dcmd->cmd = MFI_CMD_DCMD; 4791 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4792 dcmd->sge_count = 1; 4793 dcmd->flags = MFI_FRAME_DIR_READ; 4794 dcmd->timeout = 0; 4795 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); 4796 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); 4797 dcmd->pad_0 = 0; 4798 4799 megasas_set_dma_settings(instance, dcmd, ci_h, 4800 sizeof(struct MR_LD_TARGETID_LIST)); 4801 4802 if ((instance->adapter_type != MFI_SERIES) && 4803 !instance->mask_interrupts) 4804 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 4805 else 4806 ret = megasas_issue_polled(instance, cmd); 4807 4808 switch (ret) { 4809 case DCMD_FAILED: 4810 dev_info(&instance->pdev->dev, 4811 "DCMD not supported by firmware - %s %d\n", 4812 __func__, __LINE__); 4813 ret = megasas_get_ld_list(instance); 4814 break; 4815 case DCMD_TIMEOUT: 4816 switch (dcmd_timeout_ocr_possible(instance)) { 4817 case INITIATE_OCR: 4818 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4819 /* 4820 * DCMD failed from AEN path. 4821 * AEN path already hold reset_mutex to avoid PCI access 4822 * while OCR is in progress. 4823 */ 4824 mutex_unlock(&instance->reset_mutex); 4825 megasas_reset_fusion(instance->host, 4826 MFI_IO_TIMEOUT_OCR); 4827 mutex_lock(&instance->reset_mutex); 4828 break; 4829 case KILL_ADAPTER: 4830 megaraid_sas_kill_hba(instance); 4831 break; 4832 case IGNORE_TIMEOUT: 4833 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4834 __func__, __LINE__); 4835 break; 4836 } 4837 4838 break; 4839 case DCMD_SUCCESS: 4840 tgtid_count = le32_to_cpu(ci->count); 4841 4842 if (megasas_dbg_lvl & LD_PD_DEBUG) 4843 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n", 4844 __func__, tgtid_count); 4845 4846 if ((tgtid_count > (instance->fw_supported_vd_count))) 4847 break; 4848 4849 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 4850 for (ld_index = 0; ld_index < tgtid_count; ld_index++) { 4851 ids = ci->targetId[ld_index]; 4852 instance->ld_ids[ids] = ci->targetId[ld_index]; 4853 if (megasas_dbg_lvl & LD_PD_DEBUG) 4854 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n", 4855 ld_index, ci->targetId[ld_index]); 4856 } 4857 4858 break; 4859 } 4860 4861 if (ret != DCMD_TIMEOUT) 4862 megasas_return_cmd(instance, cmd); 4863 4864 return ret; 4865 } 4866 4867 /** 4868 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET 4869 * dcmd.mbox - reserved 4870 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure 4871 * Desc: This DCMD will return the combined device list 4872 * Status: MFI_STAT_OK - List returned successfully 4873 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been 4874 * disabled 4875 * @instance: Adapter soft state 4876 * @is_probe: Driver probe check 4877 * Return: 0 if DCMD succeeded 4878 * non-zero if failed 4879 */ 4880 static int 4881 megasas_host_device_list_query(struct megasas_instance *instance, 4882 bool is_probe) 4883 { 4884 int ret, i, target_id; 4885 struct megasas_cmd *cmd; 4886 struct megasas_dcmd_frame *dcmd; 4887 struct MR_HOST_DEVICE_LIST *ci; 4888 u32 count; 4889 dma_addr_t ci_h; 4890 4891 ci = instance->host_device_list_buf; 4892 ci_h = instance->host_device_list_buf_h; 4893 4894 cmd = megasas_get_cmd(instance); 4895 4896 if (!cmd) { 4897 dev_warn(&instance->pdev->dev, 4898 "%s: failed to get cmd\n", 4899 __func__); 4900 return -ENOMEM; 4901 } 4902 4903 dcmd = &cmd->frame->dcmd; 4904 4905 memset(ci, 0, sizeof(*ci)); 4906 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 4907 4908 dcmd->mbox.b[0] = is_probe ? 0 : 1; 4909 dcmd->cmd = MFI_CMD_DCMD; 4910 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 4911 dcmd->sge_count = 1; 4912 dcmd->flags = MFI_FRAME_DIR_READ; 4913 dcmd->timeout = 0; 4914 dcmd->pad_0 = 0; 4915 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ); 4916 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET); 4917 4918 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ); 4919 4920 if (!instance->mask_interrupts) { 4921 ret = megasas_issue_blocked_cmd(instance, cmd, 4922 MFI_IO_TIMEOUT_SECS); 4923 } else { 4924 ret = megasas_issue_polled(instance, cmd); 4925 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4926 } 4927 4928 switch (ret) { 4929 case DCMD_SUCCESS: 4930 /* Fill the internal pd_list and ld_ids array based on 4931 * targetIds returned by FW 4932 */ 4933 count = le32_to_cpu(ci->count); 4934 4935 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT)) 4936 break; 4937 4938 if (megasas_dbg_lvl & LD_PD_DEBUG) 4939 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n", 4940 __func__, count); 4941 4942 memset(instance->local_pd_list, 0, 4943 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); 4944 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); 4945 for (i = 0; i < count; i++) { 4946 target_id = le16_to_cpu(ci->host_device_list[i].target_id); 4947 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) { 4948 instance->local_pd_list[target_id].tid = target_id; 4949 instance->local_pd_list[target_id].driveType = 4950 ci->host_device_list[i].scsi_type; 4951 instance->local_pd_list[target_id].driveState = 4952 MR_PD_STATE_SYSTEM; 4953 if (megasas_dbg_lvl & LD_PD_DEBUG) 4954 dev_info(&instance->pdev->dev, 4955 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n", 4956 i, target_id, ci->host_device_list[i].scsi_type); 4957 } else { 4958 instance->ld_ids[target_id] = target_id; 4959 if (megasas_dbg_lvl & LD_PD_DEBUG) 4960 dev_info(&instance->pdev->dev, 4961 "Device %d: LD targetID: 0x%03x\n", 4962 i, target_id); 4963 } 4964 } 4965 4966 memcpy(instance->pd_list, instance->local_pd_list, 4967 sizeof(instance->pd_list)); 4968 break; 4969 4970 case DCMD_TIMEOUT: 4971 switch (dcmd_timeout_ocr_possible(instance)) { 4972 case INITIATE_OCR: 4973 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 4974 mutex_unlock(&instance->reset_mutex); 4975 megasas_reset_fusion(instance->host, 4976 MFI_IO_TIMEOUT_OCR); 4977 mutex_lock(&instance->reset_mutex); 4978 break; 4979 case KILL_ADAPTER: 4980 megaraid_sas_kill_hba(instance); 4981 break; 4982 case IGNORE_TIMEOUT: 4983 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 4984 __func__, __LINE__); 4985 break; 4986 } 4987 break; 4988 case DCMD_FAILED: 4989 dev_err(&instance->pdev->dev, 4990 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n", 4991 __func__); 4992 break; 4993 } 4994 4995 if (ret != DCMD_TIMEOUT) 4996 megasas_return_cmd(instance, cmd); 4997 4998 return ret; 4999 } 5000 5001 /* 5002 * megasas_update_ext_vd_details : Update details w.r.t Extended VD 5003 * instance : Controller's instance 5004 */ 5005 static void megasas_update_ext_vd_details(struct megasas_instance *instance) 5006 { 5007 struct fusion_context *fusion; 5008 u32 ventura_map_sz = 0; 5009 5010 fusion = instance->ctrl_context; 5011 /* For MFI based controllers return dummy success */ 5012 if (!fusion) 5013 return; 5014 5015 instance->supportmax256vd = 5016 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs; 5017 /* Below is additional check to address future FW enhancement */ 5018 if (instance->ctrl_info_buf->max_lds > 64) 5019 instance->supportmax256vd = 1; 5020 5021 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS 5022 * MEGASAS_MAX_DEV_PER_CHANNEL; 5023 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS 5024 * MEGASAS_MAX_DEV_PER_CHANNEL; 5025 if (instance->supportmax256vd) { 5026 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; 5027 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5028 } else { 5029 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 5030 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 5031 } 5032 5033 dev_info(&instance->pdev->dev, 5034 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n", 5035 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0, 5036 instance->ctrl_info_buf->max_lds); 5037 5038 if (instance->max_raid_mapsize) { 5039 ventura_map_sz = instance->max_raid_mapsize * 5040 MR_MIN_MAP_SIZE; /* 64k */ 5041 fusion->current_map_sz = ventura_map_sz; 5042 fusion->max_map_sz = ventura_map_sz; 5043 } else { 5044 fusion->old_map_sz = sizeof(struct MR_FW_RAID_MAP) + 5045 (sizeof(struct MR_LD_SPAN_MAP) * 5046 (instance->fw_supported_vd_count - 1)); 5047 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); 5048 5049 fusion->max_map_sz = 5050 max(fusion->old_map_sz, fusion->new_map_sz); 5051 5052 if (instance->supportmax256vd) 5053 fusion->current_map_sz = fusion->new_map_sz; 5054 else 5055 fusion->current_map_sz = fusion->old_map_sz; 5056 } 5057 /* irrespective of FW raid maps, driver raid map is constant */ 5058 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL); 5059 } 5060 5061 /* 5062 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES 5063 * dcmd.hdr.length - number of bytes to read 5064 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES 5065 * Desc: Fill in snapdump properties 5066 * Status: MFI_STAT_OK- Command successful 5067 */ 5068 void megasas_get_snapdump_properties(struct megasas_instance *instance) 5069 { 5070 int ret = 0; 5071 struct megasas_cmd *cmd; 5072 struct megasas_dcmd_frame *dcmd; 5073 struct MR_SNAPDUMP_PROPERTIES *ci; 5074 dma_addr_t ci_h = 0; 5075 5076 ci = instance->snapdump_prop; 5077 ci_h = instance->snapdump_prop_h; 5078 5079 if (!ci) 5080 return; 5081 5082 cmd = megasas_get_cmd(instance); 5083 5084 if (!cmd) { 5085 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n"); 5086 return; 5087 } 5088 5089 dcmd = &cmd->frame->dcmd; 5090 5091 memset(ci, 0, sizeof(*ci)); 5092 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5093 5094 dcmd->cmd = MFI_CMD_DCMD; 5095 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5096 dcmd->sge_count = 1; 5097 dcmd->flags = MFI_FRAME_DIR_READ; 5098 dcmd->timeout = 0; 5099 dcmd->pad_0 = 0; 5100 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5101 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES); 5102 5103 megasas_set_dma_settings(instance, dcmd, ci_h, 5104 sizeof(struct MR_SNAPDUMP_PROPERTIES)); 5105 5106 if (!instance->mask_interrupts) { 5107 ret = megasas_issue_blocked_cmd(instance, cmd, 5108 MFI_IO_TIMEOUT_SECS); 5109 } else { 5110 ret = megasas_issue_polled(instance, cmd); 5111 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5112 } 5113 5114 switch (ret) { 5115 case DCMD_SUCCESS: 5116 instance->snapdump_wait_time = 5117 min_t(u8, ci->trigger_min_num_sec_before_ocr, 5118 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME); 5119 break; 5120 5121 case DCMD_TIMEOUT: 5122 switch (dcmd_timeout_ocr_possible(instance)) { 5123 case INITIATE_OCR: 5124 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5125 mutex_unlock(&instance->reset_mutex); 5126 megasas_reset_fusion(instance->host, 5127 MFI_IO_TIMEOUT_OCR); 5128 mutex_lock(&instance->reset_mutex); 5129 break; 5130 case KILL_ADAPTER: 5131 megaraid_sas_kill_hba(instance); 5132 break; 5133 case IGNORE_TIMEOUT: 5134 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5135 __func__, __LINE__); 5136 break; 5137 } 5138 } 5139 5140 if (ret != DCMD_TIMEOUT) 5141 megasas_return_cmd(instance, cmd); 5142 } 5143 5144 /** 5145 * megasas_get_controller_info - Returns FW's controller structure 5146 * @instance: Adapter soft state 5147 * 5148 * Issues an internal command (DCMD) to get the FW's controller structure. 5149 * This information is mainly used to find out the maximum IO transfer per 5150 * command supported by the FW. 5151 */ 5152 int 5153 megasas_get_ctrl_info(struct megasas_instance *instance) 5154 { 5155 int ret = 0; 5156 struct megasas_cmd *cmd; 5157 struct megasas_dcmd_frame *dcmd; 5158 struct megasas_ctrl_info *ci; 5159 dma_addr_t ci_h = 0; 5160 5161 ci = instance->ctrl_info_buf; 5162 ci_h = instance->ctrl_info_buf_h; 5163 5164 cmd = megasas_get_cmd(instance); 5165 5166 if (!cmd) { 5167 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); 5168 return -ENOMEM; 5169 } 5170 5171 dcmd = &cmd->frame->dcmd; 5172 5173 memset(ci, 0, sizeof(*ci)); 5174 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5175 5176 dcmd->cmd = MFI_CMD_DCMD; 5177 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5178 dcmd->sge_count = 1; 5179 dcmd->flags = MFI_FRAME_DIR_READ; 5180 dcmd->timeout = 0; 5181 dcmd->pad_0 = 0; 5182 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); 5183 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); 5184 dcmd->mbox.b[0] = 1; 5185 5186 megasas_set_dma_settings(instance, dcmd, ci_h, 5187 sizeof(struct megasas_ctrl_info)); 5188 5189 if ((instance->adapter_type != MFI_SERIES) && 5190 !instance->mask_interrupts) { 5191 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5192 } else { 5193 ret = megasas_issue_polled(instance, cmd); 5194 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5195 } 5196 5197 switch (ret) { 5198 case DCMD_SUCCESS: 5199 /* Save required controller information in 5200 * CPU endianness format. 5201 */ 5202 le32_to_cpus((u32 *)&ci->properties.OnOffProperties); 5203 le16_to_cpus((u16 *)&ci->properties.on_off_properties2); 5204 le32_to_cpus((u32 *)&ci->adapterOperations2); 5205 le32_to_cpus((u32 *)&ci->adapterOperations3); 5206 le16_to_cpus((u16 *)&ci->adapter_operations4); 5207 le32_to_cpus((u32 *)&ci->adapter_operations5); 5208 5209 /* Update the latest Ext VD info. 5210 * From Init path, store current firmware details. 5211 * From OCR path, detect any firmware properties changes. 5212 * in case of Firmware upgrade without system reboot. 5213 */ 5214 megasas_update_ext_vd_details(instance); 5215 instance->support_seqnum_jbod_fp = 5216 ci->adapterOperations3.useSeqNumJbodFP; 5217 instance->support_morethan256jbod = 5218 ci->adapter_operations4.support_pd_map_target_id; 5219 instance->support_nvme_passthru = 5220 ci->adapter_operations4.support_nvme_passthru; 5221 instance->support_pci_lane_margining = 5222 ci->adapter_operations5.support_pci_lane_margining; 5223 instance->task_abort_tmo = ci->TaskAbortTO; 5224 instance->max_reset_tmo = ci->MaxResetTO; 5225 5226 /*Check whether controller is iMR or MR */ 5227 instance->is_imr = (ci->memory_size ? 0 : 1); 5228 5229 instance->snapdump_wait_time = 5230 (ci->properties.on_off_properties2.enable_snap_dump ? 5231 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0); 5232 5233 instance->enable_fw_dev_list = 5234 ci->properties.on_off_properties2.enable_fw_dev_list; 5235 5236 dev_info(&instance->pdev->dev, 5237 "controller type\t: %s(%dMB)\n", 5238 instance->is_imr ? "iMR" : "MR", 5239 le16_to_cpu(ci->memory_size)); 5240 5241 instance->disableOnlineCtrlReset = 5242 ci->properties.OnOffProperties.disableOnlineCtrlReset; 5243 instance->secure_jbod_support = 5244 ci->adapterOperations3.supportSecurityonJBOD; 5245 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", 5246 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); 5247 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", 5248 instance->secure_jbod_support ? "Yes" : "No"); 5249 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n", 5250 instance->support_nvme_passthru ? "Yes" : "No"); 5251 dev_info(&instance->pdev->dev, 5252 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n", 5253 instance->task_abort_tmo, instance->max_reset_tmo); 5254 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n", 5255 instance->support_seqnum_jbod_fp ? "Yes" : "No"); 5256 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n", 5257 instance->support_pci_lane_margining ? "Yes" : "No"); 5258 5259 break; 5260 5261 case DCMD_TIMEOUT: 5262 switch (dcmd_timeout_ocr_possible(instance)) { 5263 case INITIATE_OCR: 5264 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5265 mutex_unlock(&instance->reset_mutex); 5266 megasas_reset_fusion(instance->host, 5267 MFI_IO_TIMEOUT_OCR); 5268 mutex_lock(&instance->reset_mutex); 5269 break; 5270 case KILL_ADAPTER: 5271 megaraid_sas_kill_hba(instance); 5272 break; 5273 case IGNORE_TIMEOUT: 5274 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5275 __func__, __LINE__); 5276 break; 5277 } 5278 break; 5279 case DCMD_FAILED: 5280 megaraid_sas_kill_hba(instance); 5281 break; 5282 5283 } 5284 5285 if (ret != DCMD_TIMEOUT) 5286 megasas_return_cmd(instance, cmd); 5287 5288 return ret; 5289 } 5290 5291 /* 5292 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer 5293 * to firmware 5294 * 5295 * @instance: Adapter soft state 5296 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature 5297 MR_CRASH_BUF_TURN_OFF = 0 5298 MR_CRASH_BUF_TURN_ON = 1 5299 * @return 0 on success non-zero on failure. 5300 * Issues an internal command (DCMD) to set parameters for crash dump feature. 5301 * Driver will send address of crash dump DMA buffer and set mbox to tell FW 5302 * that driver supports crash dump feature. This DCMD will be sent only if 5303 * crash dump feature is supported by the FW. 5304 * 5305 */ 5306 int megasas_set_crash_dump_params(struct megasas_instance *instance, 5307 u8 crash_buf_state) 5308 { 5309 int ret = 0; 5310 struct megasas_cmd *cmd; 5311 struct megasas_dcmd_frame *dcmd; 5312 5313 cmd = megasas_get_cmd(instance); 5314 5315 if (!cmd) { 5316 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); 5317 return -ENOMEM; 5318 } 5319 5320 5321 dcmd = &cmd->frame->dcmd; 5322 5323 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 5324 dcmd->mbox.b[0] = crash_buf_state; 5325 dcmd->cmd = MFI_CMD_DCMD; 5326 dcmd->cmd_status = MFI_STAT_INVALID_STATUS; 5327 dcmd->sge_count = 1; 5328 dcmd->flags = MFI_FRAME_DIR_NONE; 5329 dcmd->timeout = 0; 5330 dcmd->pad_0 = 0; 5331 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); 5332 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); 5333 5334 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h, 5335 CRASH_DMA_BUF_SIZE); 5336 5337 if ((instance->adapter_type != MFI_SERIES) && 5338 !instance->mask_interrupts) 5339 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 5340 else 5341 ret = megasas_issue_polled(instance, cmd); 5342 5343 if (ret == DCMD_TIMEOUT) { 5344 switch (dcmd_timeout_ocr_possible(instance)) { 5345 case INITIATE_OCR: 5346 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 5347 megasas_reset_fusion(instance->host, 5348 MFI_IO_TIMEOUT_OCR); 5349 break; 5350 case KILL_ADAPTER: 5351 megaraid_sas_kill_hba(instance); 5352 break; 5353 case IGNORE_TIMEOUT: 5354 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", 5355 __func__, __LINE__); 5356 break; 5357 } 5358 } else 5359 megasas_return_cmd(instance, cmd); 5360 5361 return ret; 5362 } 5363 5364 /** 5365 * megasas_issue_init_mfi - Initializes the FW 5366 * @instance: Adapter soft state 5367 * 5368 * Issues the INIT MFI cmd 5369 */ 5370 static int 5371 megasas_issue_init_mfi(struct megasas_instance *instance) 5372 { 5373 __le32 context; 5374 struct megasas_cmd *cmd; 5375 struct megasas_init_frame *init_frame; 5376 struct megasas_init_queue_info *initq_info; 5377 dma_addr_t init_frame_h; 5378 dma_addr_t initq_info_h; 5379 5380 /* 5381 * Prepare a init frame. Note the init frame points to queue info 5382 * structure. Each frame has SGL allocated after first 64 bytes. For 5383 * this frame - since we don't need any SGL - we use SGL's space as 5384 * queue info structure 5385 * 5386 * We will not get a NULL command below. We just created the pool. 5387 */ 5388 cmd = megasas_get_cmd(instance); 5389 5390 init_frame = (struct megasas_init_frame *)cmd->frame; 5391 initq_info = (struct megasas_init_queue_info *) 5392 ((unsigned long)init_frame + 64); 5393 5394 init_frame_h = cmd->frame_phys_addr; 5395 initq_info_h = init_frame_h + 64; 5396 5397 context = init_frame->context; 5398 memset(init_frame, 0, MEGAMFI_FRAME_SIZE); 5399 memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); 5400 init_frame->context = context; 5401 5402 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); 5403 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); 5404 5405 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); 5406 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); 5407 5408 init_frame->cmd = MFI_CMD_INIT; 5409 init_frame->cmd_status = MFI_STAT_INVALID_STATUS; 5410 init_frame->queue_info_new_phys_addr_lo = 5411 cpu_to_le32(lower_32_bits(initq_info_h)); 5412 init_frame->queue_info_new_phys_addr_hi = 5413 cpu_to_le32(upper_32_bits(initq_info_h)); 5414 5415 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); 5416 5417 /* 5418 * disable the intr before firing the init frame to FW 5419 */ 5420 instance->instancet->disable_intr(instance); 5421 5422 /* 5423 * Issue the init frame in polled mode 5424 */ 5425 5426 if (megasas_issue_polled(instance, cmd)) { 5427 dev_err(&instance->pdev->dev, "Failed to init firmware\n"); 5428 megasas_return_cmd(instance, cmd); 5429 goto fail_fw_init; 5430 } 5431 5432 megasas_return_cmd(instance, cmd); 5433 5434 return 0; 5435 5436 fail_fw_init: 5437 return -EINVAL; 5438 } 5439 5440 static u32 5441 megasas_init_adapter_mfi(struct megasas_instance *instance) 5442 { 5443 u32 context_sz; 5444 u32 reply_q_sz; 5445 5446 /* 5447 * Get various operational parameters from status register 5448 */ 5449 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF; 5450 /* 5451 * Reduce the max supported cmds by 1. This is to ensure that the 5452 * reply_q_sz (1 more than the max cmd that driver may send) 5453 * does not exceed max cmds that the FW can support 5454 */ 5455 instance->max_fw_cmds = instance->max_fw_cmds-1; 5456 instance->max_mfi_cmds = instance->max_fw_cmds; 5457 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >> 5458 0x10; 5459 /* 5460 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands 5461 * are reserved for IOCTL + driver's internal DCMDs. 5462 */ 5463 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 5464 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { 5465 instance->max_scsi_cmds = (instance->max_fw_cmds - 5466 MEGASAS_SKINNY_INT_CMDS); 5467 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); 5468 } else { 5469 instance->max_scsi_cmds = (instance->max_fw_cmds - 5470 MEGASAS_INT_CMDS); 5471 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); 5472 } 5473 5474 instance->cur_can_queue = instance->max_scsi_cmds; 5475 /* 5476 * Create a pool of commands 5477 */ 5478 if (megasas_alloc_cmds(instance)) 5479 goto fail_alloc_cmds; 5480 5481 /* 5482 * Allocate memory for reply queue. Length of reply queue should 5483 * be _one_ more than the maximum commands handled by the firmware. 5484 * 5485 * Note: When FW completes commands, it places corresponding contex 5486 * values in this circular reply queue. This circular queue is a fairly 5487 * typical producer-consumer queue. FW is the producer (of completed 5488 * commands) and the driver is the consumer. 5489 */ 5490 context_sz = sizeof(u32); 5491 reply_q_sz = context_sz * (instance->max_fw_cmds + 1); 5492 5493 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev, 5494 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL); 5495 5496 if (!instance->reply_queue) { 5497 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); 5498 goto fail_reply_queue; 5499 } 5500 5501 if (megasas_issue_init_mfi(instance)) 5502 goto fail_fw_init; 5503 5504 if (megasas_get_ctrl_info(instance)) { 5505 dev_err(&instance->pdev->dev, "(%d): Could get controller info " 5506 "Fail from %s %d\n", instance->unique_id, 5507 __func__, __LINE__); 5508 goto fail_fw_init; 5509 } 5510 5511 instance->fw_support_ieee = 0; 5512 instance->fw_support_ieee = 5513 (instance->instancet->read_fw_status_reg(instance) & 5514 0x04000000); 5515 5516 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", 5517 instance->fw_support_ieee); 5518 5519 if (instance->fw_support_ieee) 5520 instance->flag_ieee = 1; 5521 5522 return 0; 5523 5524 fail_fw_init: 5525 5526 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 5527 instance->reply_queue, instance->reply_queue_h); 5528 fail_reply_queue: 5529 megasas_free_cmds(instance); 5530 5531 fail_alloc_cmds: 5532 return 1; 5533 } 5534 5535 static 5536 void megasas_setup_irq_poll(struct megasas_instance *instance) 5537 { 5538 struct megasas_irq_context *irq_ctx; 5539 u32 count, i; 5540 5541 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5542 5543 /* Initialize IRQ poll */ 5544 for (i = 0; i < count; i++) { 5545 irq_ctx = &instance->irq_context[i]; 5546 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i); 5547 irq_ctx->irq_poll_scheduled = false; 5548 irq_poll_init(&irq_ctx->irqpoll, 5549 instance->threshold_reply_count, 5550 megasas_irqpoll); 5551 } 5552 } 5553 5554 /* 5555 * megasas_setup_irqs_ioapic - register legacy interrupts. 5556 * @instance: Adapter soft state 5557 * 5558 * Do not enable interrupt, only setup ISRs. 5559 * 5560 * Return 0 on success. 5561 */ 5562 static int 5563 megasas_setup_irqs_ioapic(struct megasas_instance *instance) 5564 { 5565 struct pci_dev *pdev; 5566 5567 pdev = instance->pdev; 5568 instance->irq_context[0].instance = instance; 5569 instance->irq_context[0].MSIxIndex = 0; 5570 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u", 5571 "megasas", instance->host->host_no); 5572 if (request_irq(pci_irq_vector(pdev, 0), 5573 instance->instancet->service_isr, IRQF_SHARED, 5574 instance->irq_context->name, &instance->irq_context[0])) { 5575 dev_err(&instance->pdev->dev, 5576 "Failed to register IRQ from %s %d\n", 5577 __func__, __LINE__); 5578 return -1; 5579 } 5580 instance->perf_mode = MR_LATENCY_PERF_MODE; 5581 instance->low_latency_index_start = 0; 5582 return 0; 5583 } 5584 5585 /** 5586 * megasas_setup_irqs_msix - register MSI-x interrupts. 5587 * @instance: Adapter soft state 5588 * @is_probe: Driver probe check 5589 * 5590 * Do not enable interrupt, only setup ISRs. 5591 * 5592 * Return 0 on success. 5593 */ 5594 static int 5595 megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) 5596 { 5597 int i, j; 5598 struct pci_dev *pdev; 5599 5600 pdev = instance->pdev; 5601 5602 /* Try MSI-x */ 5603 for (i = 0; i < instance->msix_vectors; i++) { 5604 instance->irq_context[i].instance = instance; 5605 instance->irq_context[i].MSIxIndex = i; 5606 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u", 5607 "megasas", instance->host->host_no, i); 5608 if (request_irq(pci_irq_vector(pdev, i), 5609 instance->instancet->service_isr, 0, instance->irq_context[i].name, 5610 &instance->irq_context[i])) { 5611 dev_err(&instance->pdev->dev, 5612 "Failed to register IRQ for vector %d.\n", i); 5613 for (j = 0; j < i; j++) { 5614 if (j < instance->low_latency_index_start) 5615 irq_set_affinity_hint( 5616 pci_irq_vector(pdev, j), NULL); 5617 free_irq(pci_irq_vector(pdev, j), 5618 &instance->irq_context[j]); 5619 } 5620 /* Retry irq register for IO_APIC*/ 5621 instance->msix_vectors = 0; 5622 instance->msix_load_balance = false; 5623 if (is_probe) { 5624 pci_free_irq_vectors(instance->pdev); 5625 return megasas_setup_irqs_ioapic(instance); 5626 } else { 5627 return -1; 5628 } 5629 } 5630 } 5631 5632 return 0; 5633 } 5634 5635 /* 5636 * megasas_destroy_irqs- unregister interrupts. 5637 * @instance: Adapter soft state 5638 * return: void 5639 */ 5640 static void 5641 megasas_destroy_irqs(struct megasas_instance *instance) { 5642 5643 int i; 5644 int count; 5645 struct megasas_irq_context *irq_ctx; 5646 5647 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1; 5648 if (instance->adapter_type != MFI_SERIES) { 5649 for (i = 0; i < count; i++) { 5650 irq_ctx = &instance->irq_context[i]; 5651 irq_poll_disable(&irq_ctx->irqpoll); 5652 } 5653 } 5654 5655 if (instance->msix_vectors) 5656 for (i = 0; i < instance->msix_vectors; i++) { 5657 if (i < instance->low_latency_index_start) 5658 irq_set_affinity_hint( 5659 pci_irq_vector(instance->pdev, i), NULL); 5660 free_irq(pci_irq_vector(instance->pdev, i), 5661 &instance->irq_context[i]); 5662 } 5663 else 5664 free_irq(pci_irq_vector(instance->pdev, 0), 5665 &instance->irq_context[0]); 5666 } 5667 5668 /** 5669 * megasas_setup_jbod_map - setup jbod map for FP seq_number. 5670 * @instance: Adapter soft state 5671 * 5672 * Return 0 on success. 5673 */ 5674 void 5675 megasas_setup_jbod_map(struct megasas_instance *instance) 5676 { 5677 int i; 5678 struct fusion_context *fusion = instance->ctrl_context; 5679 u32 pd_seq_map_sz; 5680 5681 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 5682 (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); 5683 5684 instance->use_seqnum_jbod_fp = 5685 instance->support_seqnum_jbod_fp; 5686 if (reset_devices || !fusion || 5687 !instance->support_seqnum_jbod_fp) { 5688 dev_info(&instance->pdev->dev, 5689 "JBOD sequence map is disabled %s %d\n", 5690 __func__, __LINE__); 5691 instance->use_seqnum_jbod_fp = false; 5692 return; 5693 } 5694 5695 if (fusion->pd_seq_sync[0]) 5696 goto skip_alloc; 5697 5698 for (i = 0; i < JBOD_MAPS_COUNT; i++) { 5699 fusion->pd_seq_sync[i] = dma_alloc_coherent 5700 (&instance->pdev->dev, pd_seq_map_sz, 5701 &fusion->pd_seq_phys[i], GFP_KERNEL); 5702 if (!fusion->pd_seq_sync[i]) { 5703 dev_err(&instance->pdev->dev, 5704 "Failed to allocate memory from %s %d\n", 5705 __func__, __LINE__); 5706 if (i == 1) { 5707 dma_free_coherent(&instance->pdev->dev, 5708 pd_seq_map_sz, fusion->pd_seq_sync[0], 5709 fusion->pd_seq_phys[0]); 5710 fusion->pd_seq_sync[0] = NULL; 5711 } 5712 instance->use_seqnum_jbod_fp = false; 5713 return; 5714 } 5715 } 5716 5717 skip_alloc: 5718 if (!megasas_sync_pd_seq_num(instance, false) && 5719 !megasas_sync_pd_seq_num(instance, true)) 5720 instance->use_seqnum_jbod_fp = true; 5721 else 5722 instance->use_seqnum_jbod_fp = false; 5723 } 5724 5725 static void megasas_setup_reply_map(struct megasas_instance *instance) 5726 { 5727 const struct cpumask *mask; 5728 unsigned int queue, cpu, low_latency_index_start; 5729 5730 low_latency_index_start = instance->low_latency_index_start; 5731 5732 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) { 5733 mask = pci_irq_get_affinity(instance->pdev, queue); 5734 if (!mask) 5735 goto fallback; 5736 5737 for_each_cpu(cpu, mask) 5738 instance->reply_map[cpu] = queue; 5739 } 5740 return; 5741 5742 fallback: 5743 queue = low_latency_index_start; 5744 for_each_possible_cpu(cpu) { 5745 instance->reply_map[cpu] = queue; 5746 if (queue == (instance->msix_vectors - 1)) 5747 queue = low_latency_index_start; 5748 else 5749 queue++; 5750 } 5751 } 5752 5753 /** 5754 * megasas_get_device_list - Get the PD and LD device list from FW. 5755 * @instance: Adapter soft state 5756 * @return: Success or failure 5757 * 5758 * Issue DCMDs to Firmware to get the PD and LD list. 5759 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 5760 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 5761 */ 5762 static 5763 int megasas_get_device_list(struct megasas_instance *instance) 5764 { 5765 memset(instance->pd_list, 0, 5766 (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); 5767 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); 5768 5769 if (instance->enable_fw_dev_list) { 5770 if (megasas_host_device_list_query(instance, true)) 5771 return FAILED; 5772 } else { 5773 if (megasas_get_pd_list(instance) < 0) { 5774 dev_err(&instance->pdev->dev, "failed to get PD list\n"); 5775 return FAILED; 5776 } 5777 5778 if (megasas_ld_list_query(instance, 5779 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) { 5780 dev_err(&instance->pdev->dev, "failed to get LD list\n"); 5781 return FAILED; 5782 } 5783 } 5784 5785 return SUCCESS; 5786 } 5787 5788 /** 5789 * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues 5790 * @instance: Adapter soft state 5791 * return: void 5792 */ 5793 static inline void 5794 megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance) 5795 { 5796 int i; 5797 int local_numa_node; 5798 5799 if (instance->perf_mode == MR_BALANCED_PERF_MODE) { 5800 local_numa_node = dev_to_node(&instance->pdev->dev); 5801 5802 for (i = 0; i < instance->low_latency_index_start; i++) 5803 irq_set_affinity_hint(pci_irq_vector(instance->pdev, i), 5804 cpumask_of_node(local_numa_node)); 5805 } 5806 } 5807 5808 static int 5809 __megasas_alloc_irq_vectors(struct megasas_instance *instance) 5810 { 5811 int i, irq_flags; 5812 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start }; 5813 struct irq_affinity *descp = &desc; 5814 5815 irq_flags = PCI_IRQ_MSIX; 5816 5817 if (instance->smp_affinity_enable) 5818 irq_flags |= PCI_IRQ_AFFINITY; 5819 else 5820 descp = NULL; 5821 5822 i = pci_alloc_irq_vectors_affinity(instance->pdev, 5823 instance->low_latency_index_start, 5824 instance->msix_vectors, irq_flags, descp); 5825 5826 return i; 5827 } 5828 5829 /** 5830 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors 5831 * @instance: Adapter soft state 5832 * return: void 5833 */ 5834 static void 5835 megasas_alloc_irq_vectors(struct megasas_instance *instance) 5836 { 5837 int i; 5838 unsigned int num_msix_req; 5839 5840 i = __megasas_alloc_irq_vectors(instance); 5841 5842 if ((instance->perf_mode == MR_BALANCED_PERF_MODE) && 5843 (i != instance->msix_vectors)) { 5844 if (instance->msix_vectors) 5845 pci_free_irq_vectors(instance->pdev); 5846 /* Disable Balanced IOPS mode and try realloc vectors */ 5847 instance->perf_mode = MR_LATENCY_PERF_MODE; 5848 instance->low_latency_index_start = 1; 5849 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 5850 5851 instance->msix_vectors = min(num_msix_req, 5852 instance->msix_vectors); 5853 5854 i = __megasas_alloc_irq_vectors(instance); 5855 5856 } 5857 5858 dev_info(&instance->pdev->dev, 5859 "requested/available msix %d/%d\n", instance->msix_vectors, i); 5860 5861 if (i > 0) 5862 instance->msix_vectors = i; 5863 else 5864 instance->msix_vectors = 0; 5865 5866 if (instance->smp_affinity_enable) 5867 megasas_set_high_iops_queue_affinity_hint(instance); 5868 } 5869 5870 /** 5871 * megasas_init_fw - Initializes the FW 5872 * @instance: Adapter soft state 5873 * 5874 * This is the main function for initializing firmware 5875 */ 5876 5877 static int megasas_init_fw(struct megasas_instance *instance) 5878 { 5879 u32 max_sectors_1; 5880 u32 max_sectors_2, tmp_sectors, msix_enable; 5881 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg; 5882 resource_size_t base_addr; 5883 void *base_addr_phys; 5884 struct megasas_ctrl_info *ctrl_info = NULL; 5885 unsigned long bar_list; 5886 int i, j, loop; 5887 struct IOV_111 *iovPtr; 5888 struct fusion_context *fusion; 5889 bool intr_coalescing; 5890 unsigned int num_msix_req; 5891 u16 lnksta, speed; 5892 5893 fusion = instance->ctrl_context; 5894 5895 /* Find first memory bar */ 5896 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 5897 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG); 5898 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar, 5899 "megasas: LSI")) { 5900 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); 5901 return -EBUSY; 5902 } 5903 5904 base_addr = pci_resource_start(instance->pdev, instance->bar); 5905 instance->reg_set = ioremap(base_addr, 8192); 5906 5907 if (!instance->reg_set) { 5908 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); 5909 goto fail_ioremap; 5910 } 5911 5912 base_addr_phys = &base_addr; 5913 dev_printk(KERN_DEBUG, &instance->pdev->dev, 5914 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n", 5915 instance->bar, base_addr_phys, instance->reg_set); 5916 5917 if (instance->adapter_type != MFI_SERIES) 5918 instance->instancet = &megasas_instance_template_fusion; 5919 else { 5920 switch (instance->pdev->device) { 5921 case PCI_DEVICE_ID_LSI_SAS1078R: 5922 case PCI_DEVICE_ID_LSI_SAS1078DE: 5923 instance->instancet = &megasas_instance_template_ppc; 5924 break; 5925 case PCI_DEVICE_ID_LSI_SAS1078GEN2: 5926 case PCI_DEVICE_ID_LSI_SAS0079GEN2: 5927 instance->instancet = &megasas_instance_template_gen2; 5928 break; 5929 case PCI_DEVICE_ID_LSI_SAS0073SKINNY: 5930 case PCI_DEVICE_ID_LSI_SAS0071SKINNY: 5931 instance->instancet = &megasas_instance_template_skinny; 5932 break; 5933 case PCI_DEVICE_ID_LSI_SAS1064R: 5934 case PCI_DEVICE_ID_DELL_PERC5: 5935 default: 5936 instance->instancet = &megasas_instance_template_xscale; 5937 instance->pd_list_not_supported = 1; 5938 break; 5939 } 5940 } 5941 5942 if (megasas_transition_to_ready(instance, 0)) { 5943 dev_info(&instance->pdev->dev, 5944 "Failed to transition controller to ready from %s!\n", 5945 __func__); 5946 if (instance->adapter_type != MFI_SERIES) { 5947 status_reg = instance->instancet->read_fw_status_reg( 5948 instance); 5949 if (status_reg & MFI_RESET_ADAPTER) { 5950 if (megasas_adp_reset_wait_for_ready 5951 (instance, true, 0) == FAILED) 5952 goto fail_ready_state; 5953 } else { 5954 goto fail_ready_state; 5955 } 5956 } else { 5957 atomic_set(&instance->fw_reset_no_pci_access, 1); 5958 instance->instancet->adp_reset 5959 (instance, instance->reg_set); 5960 atomic_set(&instance->fw_reset_no_pci_access, 0); 5961 5962 /*waiting for about 30 second before retry*/ 5963 ssleep(30); 5964 5965 if (megasas_transition_to_ready(instance, 0)) 5966 goto fail_ready_state; 5967 } 5968 5969 dev_info(&instance->pdev->dev, 5970 "FW restarted successfully from %s!\n", 5971 __func__); 5972 } 5973 5974 megasas_init_ctrl_params(instance); 5975 5976 if (megasas_set_dma_mask(instance)) 5977 goto fail_ready_state; 5978 5979 if (megasas_alloc_ctrl_mem(instance)) 5980 goto fail_alloc_dma_buf; 5981 5982 if (megasas_alloc_ctrl_dma_buffers(instance)) 5983 goto fail_alloc_dma_buf; 5984 5985 fusion = instance->ctrl_context; 5986 5987 if (instance->adapter_type >= VENTURA_SERIES) { 5988 scratch_pad_2 = 5989 megasas_readl(instance, 5990 &instance->reg_set->outbound_scratch_pad_2); 5991 instance->max_raid_mapsize = ((scratch_pad_2 >> 5992 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) & 5993 MR_MAX_RAID_MAP_SIZE_MASK); 5994 } 5995 5996 instance->enable_sdev_max_qd = enable_sdev_max_qd; 5997 5998 switch (instance->adapter_type) { 5999 case VENTURA_SERIES: 6000 fusion->pcie_bw_limitation = true; 6001 break; 6002 case AERO_SERIES: 6003 fusion->r56_div_offload = true; 6004 break; 6005 default: 6006 break; 6007 } 6008 6009 /* Check if MSI-X is supported while in ready state */ 6010 msix_enable = (instance->instancet->read_fw_status_reg(instance) & 6011 0x4000000) >> 0x1a; 6012 if (msix_enable && !msix_disable) { 6013 6014 scratch_pad_1 = megasas_readl 6015 (instance, &instance->reg_set->outbound_scratch_pad_1); 6016 /* Check max MSI-X vectors */ 6017 if (fusion) { 6018 if (instance->adapter_type == THUNDERBOLT_SERIES) { 6019 /* Thunderbolt Series*/ 6020 instance->msix_vectors = (scratch_pad_1 6021 & MR_MAX_REPLY_QUEUES_OFFSET) + 1; 6022 } else { 6023 instance->msix_vectors = ((scratch_pad_1 6024 & MR_MAX_REPLY_QUEUES_EXT_OFFSET) 6025 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; 6026 6027 /* 6028 * For Invader series, > 8 MSI-x vectors 6029 * supported by FW/HW implies combined 6030 * reply queue mode is enabled. 6031 * For Ventura series, > 16 MSI-x vectors 6032 * supported by FW/HW implies combined 6033 * reply queue mode is enabled. 6034 */ 6035 switch (instance->adapter_type) { 6036 case INVADER_SERIES: 6037 if (instance->msix_vectors > 8) 6038 instance->msix_combined = true; 6039 break; 6040 case AERO_SERIES: 6041 case VENTURA_SERIES: 6042 if (instance->msix_vectors > 16) 6043 instance->msix_combined = true; 6044 break; 6045 } 6046 6047 if (rdpq_enable) 6048 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ? 6049 1 : 0; 6050 6051 if (instance->adapter_type >= INVADER_SERIES && 6052 !instance->msix_combined) { 6053 instance->msix_load_balance = true; 6054 instance->smp_affinity_enable = false; 6055 } 6056 6057 /* Save 1-15 reply post index address to local memory 6058 * Index 0 is already saved from reg offset 6059 * MPI2_REPLY_POST_HOST_INDEX_OFFSET 6060 */ 6061 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { 6062 instance->reply_post_host_index_addr[loop] = 6063 (u32 __iomem *) 6064 ((u8 __iomem *)instance->reg_set + 6065 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET 6066 + (loop * 0x10)); 6067 } 6068 } 6069 6070 dev_info(&instance->pdev->dev, 6071 "firmware supports msix\t: (%d)", 6072 instance->msix_vectors); 6073 if (msix_vectors) 6074 instance->msix_vectors = min(msix_vectors, 6075 instance->msix_vectors); 6076 } else /* MFI adapters */ 6077 instance->msix_vectors = 1; 6078 6079 6080 /* 6081 * For Aero (if some conditions are met), driver will configure a 6082 * few additional reply queues with interrupt coalescing enabled. 6083 * These queues with interrupt coalescing enabled are called 6084 * High IOPS queues and rest of reply queues (based on number of 6085 * logical CPUs) are termed as Low latency queues. 6086 * 6087 * Total Number of reply queues = High IOPS queues + low latency queues 6088 * 6089 * For rest of fusion adapters, 1 additional reply queue will be 6090 * reserved for management commands, rest of reply queues 6091 * (based on number of logical CPUs) will be used for IOs and 6092 * referenced as IO queues. 6093 * Total Number of reply queues = 1 + IO queues 6094 * 6095 * MFI adapters supports single MSI-x so single reply queue 6096 * will be used for IO and management commands. 6097 */ 6098 6099 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ? 6100 true : false; 6101 if (intr_coalescing && 6102 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) && 6103 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES)) 6104 instance->perf_mode = MR_BALANCED_PERF_MODE; 6105 else 6106 instance->perf_mode = MR_LATENCY_PERF_MODE; 6107 6108 6109 if (instance->adapter_type == AERO_SERIES) { 6110 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta); 6111 speed = lnksta & PCI_EXP_LNKSTA_CLS; 6112 6113 /* 6114 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate 6115 * in latency perf mode and enable R1 PCI bandwidth algorithm 6116 */ 6117 if (speed < 0x4) { 6118 instance->perf_mode = MR_LATENCY_PERF_MODE; 6119 fusion->pcie_bw_limitation = true; 6120 } 6121 6122 /* 6123 * Performance mode settings provided through module parameter-perf_mode will 6124 * take affect only for: 6125 * 1. Aero family of adapters. 6126 * 2. When user sets module parameter- perf_mode in range of 0-2. 6127 */ 6128 if ((perf_mode >= MR_BALANCED_PERF_MODE) && 6129 (perf_mode <= MR_LATENCY_PERF_MODE)) 6130 instance->perf_mode = perf_mode; 6131 /* 6132 * If intr coalescing is not supported by controller FW, then IOPS 6133 * and Balanced modes are not feasible. 6134 */ 6135 if (!intr_coalescing) 6136 instance->perf_mode = MR_LATENCY_PERF_MODE; 6137 6138 } 6139 6140 if (instance->perf_mode == MR_BALANCED_PERF_MODE) 6141 instance->low_latency_index_start = 6142 MR_HIGH_IOPS_QUEUE_COUNT; 6143 else 6144 instance->low_latency_index_start = 1; 6145 6146 num_msix_req = num_online_cpus() + instance->low_latency_index_start; 6147 6148 instance->msix_vectors = min(num_msix_req, 6149 instance->msix_vectors); 6150 6151 megasas_alloc_irq_vectors(instance); 6152 if (!instance->msix_vectors) 6153 instance->msix_load_balance = false; 6154 } 6155 /* 6156 * MSI-X host index 0 is common for all adapter. 6157 * It is used for all MPT based Adapters. 6158 */ 6159 if (instance->msix_combined) { 6160 instance->reply_post_host_index_addr[0] = 6161 (u32 *)((u8 *)instance->reg_set + 6162 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET); 6163 } else { 6164 instance->reply_post_host_index_addr[0] = 6165 (u32 *)((u8 *)instance->reg_set + 6166 MPI2_REPLY_POST_HOST_INDEX_OFFSET); 6167 } 6168 6169 if (!instance->msix_vectors) { 6170 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_LEGACY); 6171 if (i < 0) 6172 goto fail_init_adapter; 6173 } 6174 6175 megasas_setup_reply_map(instance); 6176 6177 dev_info(&instance->pdev->dev, 6178 "current msix/online cpus\t: (%d/%d)\n", 6179 instance->msix_vectors, (unsigned int)num_online_cpus()); 6180 dev_info(&instance->pdev->dev, 6181 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); 6182 6183 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 6184 (unsigned long)instance); 6185 6186 /* 6187 * Below are default value for legacy Firmware. 6188 * non-fusion based controllers 6189 */ 6190 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; 6191 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; 6192 /* Get operational params, sge flags, send init cmd to controller */ 6193 if (instance->instancet->init_adapter(instance)) 6194 goto fail_init_adapter; 6195 6196 if (instance->adapter_type >= VENTURA_SERIES) { 6197 scratch_pad_3 = 6198 megasas_readl(instance, 6199 &instance->reg_set->outbound_scratch_pad_3); 6200 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >= 6201 MR_DEFAULT_NVME_PAGE_SHIFT) 6202 instance->nvme_page_size = 6203 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK)); 6204 6205 dev_info(&instance->pdev->dev, 6206 "NVME page size\t: (%d)\n", instance->nvme_page_size); 6207 } 6208 6209 if (instance->msix_vectors ? 6210 megasas_setup_irqs_msix(instance, 1) : 6211 megasas_setup_irqs_ioapic(instance)) 6212 goto fail_init_adapter; 6213 6214 if (instance->adapter_type != MFI_SERIES) 6215 megasas_setup_irq_poll(instance); 6216 6217 instance->instancet->enable_intr(instance); 6218 6219 dev_info(&instance->pdev->dev, "INIT adapter done\n"); 6220 6221 megasas_setup_jbod_map(instance); 6222 6223 if (megasas_get_device_list(instance) != SUCCESS) { 6224 dev_err(&instance->pdev->dev, 6225 "%s: megasas_get_device_list failed\n", 6226 __func__); 6227 goto fail_get_ld_pd_list; 6228 } 6229 6230 /* stream detection initialization */ 6231 if (instance->adapter_type >= VENTURA_SERIES) { 6232 fusion->stream_detect_by_ld = 6233 kcalloc(MAX_LOGICAL_DRIVES_EXT, 6234 sizeof(struct LD_STREAM_DETECT *), 6235 GFP_KERNEL); 6236 if (!fusion->stream_detect_by_ld) { 6237 dev_err(&instance->pdev->dev, 6238 "unable to allocate stream detection for pool of LDs\n"); 6239 goto fail_get_ld_pd_list; 6240 } 6241 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) { 6242 fusion->stream_detect_by_ld[i] = 6243 kzalloc(sizeof(struct LD_STREAM_DETECT), 6244 GFP_KERNEL); 6245 if (!fusion->stream_detect_by_ld[i]) { 6246 dev_err(&instance->pdev->dev, 6247 "unable to allocate stream detect by LD\n "); 6248 for (j = 0; j < i; ++j) 6249 kfree(fusion->stream_detect_by_ld[j]); 6250 kfree(fusion->stream_detect_by_ld); 6251 fusion->stream_detect_by_ld = NULL; 6252 goto fail_get_ld_pd_list; 6253 } 6254 fusion->stream_detect_by_ld[i]->mru_bit_map 6255 = MR_STREAM_BITMAP; 6256 } 6257 } 6258 6259 /* 6260 * Compute the max allowed sectors per IO: The controller info has two 6261 * limits on max sectors. Driver should use the minimum of these two. 6262 * 6263 * 1 << stripe_sz_ops.min = max sectors per strip 6264 * 6265 * Note that older firmwares ( < FW ver 30) didn't report information 6266 * to calculate max_sectors_1. So the number ended up as zero always. 6267 */ 6268 tmp_sectors = 0; 6269 ctrl_info = instance->ctrl_info_buf; 6270 6271 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * 6272 le16_to_cpu(ctrl_info->max_strips_per_io); 6273 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); 6274 6275 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); 6276 6277 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; 6278 instance->passive = ctrl_info->cluster.passive; 6279 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); 6280 instance->UnevenSpanSupport = 6281 ctrl_info->adapterOperations2.supportUnevenSpans; 6282 if (instance->UnevenSpanSupport) { 6283 struct fusion_context *fusion = instance->ctrl_context; 6284 if (MR_ValidateMapInfo(instance, instance->map_id)) 6285 fusion->fast_path_io = 1; 6286 else 6287 fusion->fast_path_io = 0; 6288 6289 } 6290 if (ctrl_info->host_interface.SRIOV) { 6291 instance->requestorId = ctrl_info->iov.requestorId; 6292 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { 6293 if (!ctrl_info->adapterOperations2.activePassive) 6294 instance->PlasmaFW111 = 1; 6295 6296 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", 6297 instance->PlasmaFW111 ? "1.11" : "new"); 6298 6299 if (instance->PlasmaFW111) { 6300 iovPtr = (struct IOV_111 *) 6301 ((unsigned char *)ctrl_info + IOV_111_OFFSET); 6302 instance->requestorId = iovPtr->requestorId; 6303 } 6304 } 6305 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", 6306 instance->requestorId); 6307 } 6308 6309 instance->crash_dump_fw_support = 6310 ctrl_info->adapterOperations3.supportCrashDump; 6311 instance->crash_dump_drv_support = 6312 (instance->crash_dump_fw_support && 6313 instance->crash_dump_buf); 6314 if (instance->crash_dump_drv_support) 6315 megasas_set_crash_dump_params(instance, 6316 MR_CRASH_BUF_TURN_OFF); 6317 6318 else { 6319 if (instance->crash_dump_buf) 6320 dma_free_coherent(&instance->pdev->dev, 6321 CRASH_DMA_BUF_SIZE, 6322 instance->crash_dump_buf, 6323 instance->crash_dump_h); 6324 instance->crash_dump_buf = NULL; 6325 } 6326 6327 if (instance->snapdump_wait_time) { 6328 megasas_get_snapdump_properties(instance); 6329 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n", 6330 instance->snapdump_wait_time); 6331 } 6332 6333 dev_info(&instance->pdev->dev, 6334 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", 6335 le16_to_cpu(ctrl_info->pci.vendor_id), 6336 le16_to_cpu(ctrl_info->pci.device_id), 6337 le16_to_cpu(ctrl_info->pci.sub_vendor_id), 6338 le16_to_cpu(ctrl_info->pci.sub_device_id)); 6339 dev_info(&instance->pdev->dev, "unevenspan support : %s\n", 6340 instance->UnevenSpanSupport ? "yes" : "no"); 6341 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", 6342 instance->crash_dump_drv_support ? "yes" : "no"); 6343 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n", 6344 instance->use_seqnum_jbod_fp ? "enabled" : "disabled"); 6345 6346 instance->max_sectors_per_req = instance->max_num_sge * 6347 SGE_BUFFER_SIZE / 512; 6348 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) 6349 instance->max_sectors_per_req = tmp_sectors; 6350 6351 /* Check for valid throttlequeuedepth module parameter */ 6352 if (throttlequeuedepth && 6353 throttlequeuedepth <= instance->max_scsi_cmds) 6354 instance->throttlequeuedepth = throttlequeuedepth; 6355 else 6356 instance->throttlequeuedepth = 6357 MEGASAS_THROTTLE_QUEUE_DEPTH; 6358 6359 if ((resetwaittime < 1) || 6360 (resetwaittime > MEGASAS_RESET_WAIT_TIME)) 6361 resetwaittime = MEGASAS_RESET_WAIT_TIME; 6362 6363 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) 6364 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; 6365 6366 /* Launch SR-IOV heartbeat timer */ 6367 if (instance->requestorId) { 6368 if (!megasas_sriov_start_heartbeat(instance, 1)) { 6369 megasas_start_timer(instance); 6370 } else { 6371 instance->skip_heartbeat_timer_del = 1; 6372 goto fail_get_ld_pd_list; 6373 } 6374 } 6375 6376 /* 6377 * Create and start watchdog thread which will monitor 6378 * controller state every 1 sec and trigger OCR when 6379 * it enters fault state 6380 */ 6381 if (instance->adapter_type != MFI_SERIES) 6382 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 6383 goto fail_start_watchdog; 6384 6385 return 0; 6386 6387 fail_start_watchdog: 6388 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 6389 del_timer_sync(&instance->sriov_heartbeat_timer); 6390 fail_get_ld_pd_list: 6391 instance->instancet->disable_intr(instance); 6392 megasas_destroy_irqs(instance); 6393 fail_init_adapter: 6394 if (instance->msix_vectors) 6395 pci_free_irq_vectors(instance->pdev); 6396 instance->msix_vectors = 0; 6397 fail_alloc_dma_buf: 6398 megasas_free_ctrl_dma_buffers(instance); 6399 megasas_free_ctrl_mem(instance); 6400 fail_ready_state: 6401 iounmap(instance->reg_set); 6402 6403 fail_ioremap: 6404 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6405 6406 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6407 __func__, __LINE__); 6408 return -EINVAL; 6409 } 6410 6411 /** 6412 * megasas_release_mfi - Reverses the FW initialization 6413 * @instance: Adapter soft state 6414 */ 6415 static void megasas_release_mfi(struct megasas_instance *instance) 6416 { 6417 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); 6418 6419 if (instance->reply_queue) 6420 dma_free_coherent(&instance->pdev->dev, reply_q_sz, 6421 instance->reply_queue, instance->reply_queue_h); 6422 6423 megasas_free_cmds(instance); 6424 6425 iounmap(instance->reg_set); 6426 6427 pci_release_selected_regions(instance->pdev, 1<<instance->bar); 6428 } 6429 6430 /** 6431 * megasas_get_seq_num - Gets latest event sequence numbers 6432 * @instance: Adapter soft state 6433 * @eli: FW event log sequence numbers information 6434 * 6435 * FW maintains a log of all events in a non-volatile area. Upper layers would 6436 * usually find out the latest sequence number of the events, the seq number at 6437 * the boot etc. They would "read" all the events below the latest seq number 6438 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq 6439 * number), they would subsribe to AEN (asynchronous event notification) and 6440 * wait for the events to happen. 6441 */ 6442 static int 6443 megasas_get_seq_num(struct megasas_instance *instance, 6444 struct megasas_evt_log_info *eli) 6445 { 6446 struct megasas_cmd *cmd; 6447 struct megasas_dcmd_frame *dcmd; 6448 struct megasas_evt_log_info *el_info; 6449 dma_addr_t el_info_h = 0; 6450 int ret; 6451 6452 cmd = megasas_get_cmd(instance); 6453 6454 if (!cmd) { 6455 return -ENOMEM; 6456 } 6457 6458 dcmd = &cmd->frame->dcmd; 6459 el_info = dma_alloc_coherent(&instance->pdev->dev, 6460 sizeof(struct megasas_evt_log_info), 6461 &el_info_h, GFP_KERNEL); 6462 if (!el_info) { 6463 megasas_return_cmd(instance, cmd); 6464 return -ENOMEM; 6465 } 6466 6467 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6468 6469 dcmd->cmd = MFI_CMD_DCMD; 6470 dcmd->cmd_status = 0x0; 6471 dcmd->sge_count = 1; 6472 dcmd->flags = MFI_FRAME_DIR_READ; 6473 dcmd->timeout = 0; 6474 dcmd->pad_0 = 0; 6475 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); 6476 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); 6477 6478 megasas_set_dma_settings(instance, dcmd, el_info_h, 6479 sizeof(struct megasas_evt_log_info)); 6480 6481 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); 6482 if (ret != DCMD_SUCCESS) { 6483 dev_err(&instance->pdev->dev, "Failed from %s %d\n", 6484 __func__, __LINE__); 6485 goto dcmd_failed; 6486 } 6487 6488 /* 6489 * Copy the data back into callers buffer 6490 */ 6491 eli->newest_seq_num = el_info->newest_seq_num; 6492 eli->oldest_seq_num = el_info->oldest_seq_num; 6493 eli->clear_seq_num = el_info->clear_seq_num; 6494 eli->shutdown_seq_num = el_info->shutdown_seq_num; 6495 eli->boot_seq_num = el_info->boot_seq_num; 6496 6497 dcmd_failed: 6498 dma_free_coherent(&instance->pdev->dev, 6499 sizeof(struct megasas_evt_log_info), 6500 el_info, el_info_h); 6501 6502 megasas_return_cmd(instance, cmd); 6503 6504 return ret; 6505 } 6506 6507 /** 6508 * megasas_register_aen - Registers for asynchronous event notification 6509 * @instance: Adapter soft state 6510 * @seq_num: The starting sequence number 6511 * @class_locale_word: Class of the event 6512 * 6513 * This function subscribes for AEN for events beyond the @seq_num. It requests 6514 * to be notified if and only if the event is of type @class_locale 6515 */ 6516 static int 6517 megasas_register_aen(struct megasas_instance *instance, u32 seq_num, 6518 u32 class_locale_word) 6519 { 6520 int ret_val; 6521 struct megasas_cmd *cmd; 6522 struct megasas_dcmd_frame *dcmd; 6523 union megasas_evt_class_locale curr_aen; 6524 union megasas_evt_class_locale prev_aen; 6525 6526 /* 6527 * If there an AEN pending already (aen_cmd), check if the 6528 * class_locale of that pending AEN is inclusive of the new 6529 * AEN request we currently have. If it is, then we don't have 6530 * to do anything. In other words, whichever events the current 6531 * AEN request is subscribing to, have already been subscribed 6532 * to. 6533 * 6534 * If the old_cmd is _not_ inclusive, then we have to abort 6535 * that command, form a class_locale that is superset of both 6536 * old and current and re-issue to the FW 6537 */ 6538 6539 curr_aen.word = class_locale_word; 6540 6541 if (instance->aen_cmd) { 6542 6543 prev_aen.word = 6544 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); 6545 6546 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) || 6547 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) { 6548 dev_info(&instance->pdev->dev, 6549 "%s %d out of range class %d send by application\n", 6550 __func__, __LINE__, curr_aen.members.class); 6551 return 0; 6552 } 6553 6554 /* 6555 * A class whose enum value is smaller is inclusive of all 6556 * higher values. If a PROGRESS (= -1) was previously 6557 * registered, then a new registration requests for higher 6558 * classes need not be sent to FW. They are automatically 6559 * included. 6560 * 6561 * Locale numbers don't have such hierarchy. They are bitmap 6562 * values 6563 */ 6564 if ((prev_aen.members.class <= curr_aen.members.class) && 6565 !((prev_aen.members.locale & curr_aen.members.locale) ^ 6566 curr_aen.members.locale)) { 6567 /* 6568 * Previously issued event registration includes 6569 * current request. Nothing to do. 6570 */ 6571 return 0; 6572 } else { 6573 curr_aen.members.locale |= prev_aen.members.locale; 6574 6575 if (prev_aen.members.class < curr_aen.members.class) 6576 curr_aen.members.class = prev_aen.members.class; 6577 6578 instance->aen_cmd->abort_aen = 1; 6579 ret_val = megasas_issue_blocked_abort_cmd(instance, 6580 instance-> 6581 aen_cmd, 30); 6582 6583 if (ret_val) { 6584 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " 6585 "previous AEN command\n"); 6586 return ret_val; 6587 } 6588 } 6589 } 6590 6591 cmd = megasas_get_cmd(instance); 6592 6593 if (!cmd) 6594 return -ENOMEM; 6595 6596 dcmd = &cmd->frame->dcmd; 6597 6598 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); 6599 6600 /* 6601 * Prepare DCMD for aen registration 6602 */ 6603 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6604 6605 dcmd->cmd = MFI_CMD_DCMD; 6606 dcmd->cmd_status = 0x0; 6607 dcmd->sge_count = 1; 6608 dcmd->flags = MFI_FRAME_DIR_READ; 6609 dcmd->timeout = 0; 6610 dcmd->pad_0 = 0; 6611 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); 6612 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); 6613 dcmd->mbox.w[0] = cpu_to_le32(seq_num); 6614 instance->last_seq_num = seq_num; 6615 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); 6616 6617 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h, 6618 sizeof(struct megasas_evt_detail)); 6619 6620 if (instance->aen_cmd != NULL) { 6621 megasas_return_cmd(instance, cmd); 6622 return 0; 6623 } 6624 6625 /* 6626 * Store reference to the cmd used to register for AEN. When an 6627 * application wants us to register for AEN, we have to abort this 6628 * cmd and re-register with a new EVENT LOCALE supplied by that app 6629 */ 6630 instance->aen_cmd = cmd; 6631 6632 /* 6633 * Issue the aen registration frame 6634 */ 6635 instance->instancet->issue_dcmd(instance, cmd); 6636 6637 return 0; 6638 } 6639 6640 /* megasas_get_target_prop - Send DCMD with below details to firmware. 6641 * 6642 * This DCMD will fetch few properties of LD/system PD defined 6643 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value. 6644 * 6645 * DCMD send by drivers whenever new target is added to the OS. 6646 * 6647 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP 6648 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD. 6649 * 0 = system PD, 1 = LD. 6650 * dcmd.mbox.s[1] - TargetID for LD/system PD. 6651 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES. 6652 * 6653 * @instance: Adapter soft state 6654 * @sdev: OS provided scsi device 6655 * 6656 * Returns 0 on success non-zero on failure. 6657 */ 6658 int 6659 megasas_get_target_prop(struct megasas_instance *instance, 6660 struct scsi_device *sdev) 6661 { 6662 int ret; 6663 struct megasas_cmd *cmd; 6664 struct megasas_dcmd_frame *dcmd; 6665 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 6666 sdev->id; 6667 6668 cmd = megasas_get_cmd(instance); 6669 6670 if (!cmd) { 6671 dev_err(&instance->pdev->dev, 6672 "Failed to get cmd %s\n", __func__); 6673 return -ENOMEM; 6674 } 6675 6676 dcmd = &cmd->frame->dcmd; 6677 6678 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop)); 6679 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 6680 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev); 6681 6682 dcmd->mbox.s[1] = cpu_to_le16(targetId); 6683 dcmd->cmd = MFI_CMD_DCMD; 6684 dcmd->cmd_status = 0xFF; 6685 dcmd->sge_count = 1; 6686 dcmd->flags = MFI_FRAME_DIR_READ; 6687 dcmd->timeout = 0; 6688 dcmd->pad_0 = 0; 6689 dcmd->data_xfer_len = 6690 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES)); 6691 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP); 6692 6693 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h, 6694 sizeof(struct MR_TARGET_PROPERTIES)); 6695 6696 if ((instance->adapter_type != MFI_SERIES) && 6697 !instance->mask_interrupts) 6698 ret = megasas_issue_blocked_cmd(instance, 6699 cmd, MFI_IO_TIMEOUT_SECS); 6700 else 6701 ret = megasas_issue_polled(instance, cmd); 6702 6703 switch (ret) { 6704 case DCMD_TIMEOUT: 6705 switch (dcmd_timeout_ocr_possible(instance)) { 6706 case INITIATE_OCR: 6707 cmd->flags |= DRV_DCMD_SKIP_REFIRE; 6708 mutex_unlock(&instance->reset_mutex); 6709 megasas_reset_fusion(instance->host, 6710 MFI_IO_TIMEOUT_OCR); 6711 mutex_lock(&instance->reset_mutex); 6712 break; 6713 case KILL_ADAPTER: 6714 megaraid_sas_kill_hba(instance); 6715 break; 6716 case IGNORE_TIMEOUT: 6717 dev_info(&instance->pdev->dev, 6718 "Ignore DCMD timeout: %s %d\n", 6719 __func__, __LINE__); 6720 break; 6721 } 6722 break; 6723 6724 default: 6725 megasas_return_cmd(instance, cmd); 6726 } 6727 if (ret != DCMD_SUCCESS) 6728 dev_err(&instance->pdev->dev, 6729 "return from %s %d return value %d\n", 6730 __func__, __LINE__, ret); 6731 6732 return ret; 6733 } 6734 6735 /** 6736 * megasas_start_aen - Subscribes to AEN during driver load time 6737 * @instance: Adapter soft state 6738 */ 6739 static int megasas_start_aen(struct megasas_instance *instance) 6740 { 6741 struct megasas_evt_log_info eli; 6742 union megasas_evt_class_locale class_locale; 6743 6744 /* 6745 * Get the latest sequence number from FW 6746 */ 6747 memset(&eli, 0, sizeof(eli)); 6748 6749 if (megasas_get_seq_num(instance, &eli)) 6750 return -1; 6751 6752 /* 6753 * Register AEN with FW for latest sequence number plus 1 6754 */ 6755 class_locale.members.reserved = 0; 6756 class_locale.members.locale = MR_EVT_LOCALE_ALL; 6757 class_locale.members.class = MR_EVT_CLASS_DEBUG; 6758 6759 return megasas_register_aen(instance, 6760 le32_to_cpu(eli.newest_seq_num) + 1, 6761 class_locale.word); 6762 } 6763 6764 /** 6765 * megasas_io_attach - Attaches this driver to SCSI mid-layer 6766 * @instance: Adapter soft state 6767 */ 6768 static int megasas_io_attach(struct megasas_instance *instance) 6769 { 6770 struct Scsi_Host *host = instance->host; 6771 6772 /* 6773 * Export parameters required by SCSI mid-layer 6774 */ 6775 host->unique_id = instance->unique_id; 6776 host->can_queue = instance->max_scsi_cmds; 6777 host->this_id = instance->init_id; 6778 host->sg_tablesize = instance->max_num_sge; 6779 6780 if (instance->fw_support_ieee) 6781 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; 6782 6783 /* 6784 * Check if the module parameter value for max_sectors can be used 6785 */ 6786 if (max_sectors && max_sectors < instance->max_sectors_per_req) 6787 instance->max_sectors_per_req = max_sectors; 6788 else { 6789 if (max_sectors) { 6790 if (((instance->pdev->device == 6791 PCI_DEVICE_ID_LSI_SAS1078GEN2) || 6792 (instance->pdev->device == 6793 PCI_DEVICE_ID_LSI_SAS0079GEN2)) && 6794 (max_sectors <= MEGASAS_MAX_SECTORS)) { 6795 instance->max_sectors_per_req = max_sectors; 6796 } else { 6797 dev_info(&instance->pdev->dev, "max_sectors should be > 0" 6798 "and <= %d (or < 1MB for GEN2 controller)\n", 6799 instance->max_sectors_per_req); 6800 } 6801 } 6802 } 6803 6804 host->max_sectors = instance->max_sectors_per_req; 6805 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; 6806 host->max_channel = MEGASAS_MAX_CHANNELS - 1; 6807 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; 6808 host->max_lun = MEGASAS_MAX_LUN; 6809 host->max_cmd_len = 16; 6810 6811 /* 6812 * Notify the mid-layer about the new controller 6813 */ 6814 if (scsi_add_host(host, &instance->pdev->dev)) { 6815 dev_err(&instance->pdev->dev, 6816 "Failed to add host from %s %d\n", 6817 __func__, __LINE__); 6818 return -ENODEV; 6819 } 6820 6821 return 0; 6822 } 6823 6824 /** 6825 * megasas_set_dma_mask - Set DMA mask for supported controllers 6826 * 6827 * @instance: Adapter soft state 6828 * Description: 6829 * 6830 * For Ventura, driver/FW will operate in 63bit DMA addresses. 6831 * 6832 * For invader- 6833 * By default, driver/FW will operate in 32bit DMA addresses 6834 * for consistent DMA mapping but if 32 bit consistent 6835 * DMA mask fails, driver will try with 63 bit consistent 6836 * mask provided FW is true 63bit DMA capable 6837 * 6838 * For older controllers(Thunderbolt and MFI based adapters)- 6839 * driver/FW will operate in 32 bit consistent DMA addresses. 6840 */ 6841 static int 6842 megasas_set_dma_mask(struct megasas_instance *instance) 6843 { 6844 u64 consistent_mask; 6845 struct pci_dev *pdev; 6846 u32 scratch_pad_1; 6847 6848 pdev = instance->pdev; 6849 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ? 6850 DMA_BIT_MASK(63) : DMA_BIT_MASK(32); 6851 6852 if (IS_DMA64) { 6853 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) && 6854 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6855 goto fail_set_dma_mask; 6856 6857 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) && 6858 (dma_set_coherent_mask(&pdev->dev, consistent_mask) && 6859 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) { 6860 /* 6861 * If 32 bit DMA mask fails, then try for 64 bit mask 6862 * for FW capable of handling 64 bit DMA. 6863 */ 6864 scratch_pad_1 = megasas_readl 6865 (instance, &instance->reg_set->outbound_scratch_pad_1); 6866 6867 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET)) 6868 goto fail_set_dma_mask; 6869 else if (dma_set_mask_and_coherent(&pdev->dev, 6870 DMA_BIT_MASK(63))) 6871 goto fail_set_dma_mask; 6872 } 6873 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) 6874 goto fail_set_dma_mask; 6875 6876 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32)) 6877 instance->consistent_mask_64bit = false; 6878 else 6879 instance->consistent_mask_64bit = true; 6880 6881 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n", 6882 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"), 6883 (instance->consistent_mask_64bit ? "63" : "32")); 6884 6885 return 0; 6886 6887 fail_set_dma_mask: 6888 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 6889 return -1; 6890 6891 } 6892 6893 /* 6894 * megasas_set_adapter_type - Set adapter type. 6895 * Supported controllers can be divided in 6896 * different categories- 6897 * enum MR_ADAPTER_TYPE { 6898 * MFI_SERIES = 1, 6899 * THUNDERBOLT_SERIES = 2, 6900 * INVADER_SERIES = 3, 6901 * VENTURA_SERIES = 4, 6902 * AERO_SERIES = 5, 6903 * }; 6904 * @instance: Adapter soft state 6905 * return: void 6906 */ 6907 static inline void megasas_set_adapter_type(struct megasas_instance *instance) 6908 { 6909 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) && 6910 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) { 6911 instance->adapter_type = MFI_SERIES; 6912 } else { 6913 switch (instance->pdev->device) { 6914 case PCI_DEVICE_ID_LSI_AERO_10E1: 6915 case PCI_DEVICE_ID_LSI_AERO_10E2: 6916 case PCI_DEVICE_ID_LSI_AERO_10E5: 6917 case PCI_DEVICE_ID_LSI_AERO_10E6: 6918 instance->adapter_type = AERO_SERIES; 6919 break; 6920 case PCI_DEVICE_ID_LSI_VENTURA: 6921 case PCI_DEVICE_ID_LSI_CRUSADER: 6922 case PCI_DEVICE_ID_LSI_HARPOON: 6923 case PCI_DEVICE_ID_LSI_TOMCAT: 6924 case PCI_DEVICE_ID_LSI_VENTURA_4PORT: 6925 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT: 6926 instance->adapter_type = VENTURA_SERIES; 6927 break; 6928 case PCI_DEVICE_ID_LSI_FUSION: 6929 case PCI_DEVICE_ID_LSI_PLASMA: 6930 instance->adapter_type = THUNDERBOLT_SERIES; 6931 break; 6932 case PCI_DEVICE_ID_LSI_INVADER: 6933 case PCI_DEVICE_ID_LSI_INTRUDER: 6934 case PCI_DEVICE_ID_LSI_INTRUDER_24: 6935 case PCI_DEVICE_ID_LSI_CUTLASS_52: 6936 case PCI_DEVICE_ID_LSI_CUTLASS_53: 6937 case PCI_DEVICE_ID_LSI_FURY: 6938 instance->adapter_type = INVADER_SERIES; 6939 break; 6940 default: /* For all other supported controllers */ 6941 instance->adapter_type = MFI_SERIES; 6942 break; 6943 } 6944 } 6945 } 6946 6947 static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance) 6948 { 6949 instance->producer = dma_alloc_coherent(&instance->pdev->dev, 6950 sizeof(u32), &instance->producer_h, GFP_KERNEL); 6951 instance->consumer = dma_alloc_coherent(&instance->pdev->dev, 6952 sizeof(u32), &instance->consumer_h, GFP_KERNEL); 6953 6954 if (!instance->producer || !instance->consumer) { 6955 dev_err(&instance->pdev->dev, 6956 "Failed to allocate memory for producer, consumer\n"); 6957 return -1; 6958 } 6959 6960 *instance->producer = 0; 6961 *instance->consumer = 0; 6962 return 0; 6963 } 6964 6965 /** 6966 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data 6967 * structures which are not common across MFI 6968 * adapters and fusion adapters. 6969 * For MFI based adapters, allocate producer and 6970 * consumer buffers. For fusion adapters, allocate 6971 * memory for fusion context. 6972 * @instance: Adapter soft state 6973 * return: 0 for SUCCESS 6974 */ 6975 static int megasas_alloc_ctrl_mem(struct megasas_instance *instance) 6976 { 6977 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int), 6978 GFP_KERNEL); 6979 if (!instance->reply_map) 6980 return -ENOMEM; 6981 6982 switch (instance->adapter_type) { 6983 case MFI_SERIES: 6984 if (megasas_alloc_mfi_ctrl_mem(instance)) 6985 goto fail; 6986 break; 6987 case AERO_SERIES: 6988 case VENTURA_SERIES: 6989 case THUNDERBOLT_SERIES: 6990 case INVADER_SERIES: 6991 if (megasas_alloc_fusion_context(instance)) 6992 goto fail; 6993 break; 6994 } 6995 6996 return 0; 6997 fail: 6998 kfree(instance->reply_map); 6999 instance->reply_map = NULL; 7000 return -ENOMEM; 7001 } 7002 7003 /* 7004 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and 7005 * producer, consumer buffers for MFI adapters 7006 * 7007 * @instance - Adapter soft instance 7008 * 7009 */ 7010 static inline void megasas_free_ctrl_mem(struct megasas_instance *instance) 7011 { 7012 kfree(instance->reply_map); 7013 if (instance->adapter_type == MFI_SERIES) { 7014 if (instance->producer) 7015 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7016 instance->producer, 7017 instance->producer_h); 7018 if (instance->consumer) 7019 dma_free_coherent(&instance->pdev->dev, sizeof(u32), 7020 instance->consumer, 7021 instance->consumer_h); 7022 } else { 7023 megasas_free_fusion_context(instance); 7024 } 7025 } 7026 7027 /** 7028 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during 7029 * driver load time 7030 * 7031 * @instance: Adapter soft instance 7032 * 7033 * @return: O for SUCCESS 7034 */ 7035 static inline 7036 int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance) 7037 { 7038 struct pci_dev *pdev = instance->pdev; 7039 struct fusion_context *fusion = instance->ctrl_context; 7040 7041 instance->evt_detail = dma_alloc_coherent(&pdev->dev, 7042 sizeof(struct megasas_evt_detail), 7043 &instance->evt_detail_h, GFP_KERNEL); 7044 7045 if (!instance->evt_detail) { 7046 dev_err(&instance->pdev->dev, 7047 "Failed to allocate event detail buffer\n"); 7048 return -ENOMEM; 7049 } 7050 7051 if (fusion) { 7052 fusion->ioc_init_request = 7053 dma_alloc_coherent(&pdev->dev, 7054 sizeof(struct MPI2_IOC_INIT_REQUEST), 7055 &fusion->ioc_init_request_phys, 7056 GFP_KERNEL); 7057 7058 if (!fusion->ioc_init_request) { 7059 dev_err(&pdev->dev, 7060 "Failed to allocate PD list buffer\n"); 7061 return -ENOMEM; 7062 } 7063 7064 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev, 7065 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7066 &instance->snapdump_prop_h, GFP_KERNEL); 7067 7068 if (!instance->snapdump_prop) 7069 dev_err(&pdev->dev, 7070 "Failed to allocate snapdump properties buffer\n"); 7071 7072 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev, 7073 HOST_DEVICE_LIST_SZ, 7074 &instance->host_device_list_buf_h, 7075 GFP_KERNEL); 7076 7077 if (!instance->host_device_list_buf) { 7078 dev_err(&pdev->dev, 7079 "Failed to allocate targetid list buffer\n"); 7080 return -ENOMEM; 7081 } 7082 7083 } 7084 7085 instance->pd_list_buf = 7086 dma_alloc_coherent(&pdev->dev, 7087 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7088 &instance->pd_list_buf_h, GFP_KERNEL); 7089 7090 if (!instance->pd_list_buf) { 7091 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n"); 7092 return -ENOMEM; 7093 } 7094 7095 instance->ctrl_info_buf = 7096 dma_alloc_coherent(&pdev->dev, 7097 sizeof(struct megasas_ctrl_info), 7098 &instance->ctrl_info_buf_h, GFP_KERNEL); 7099 7100 if (!instance->ctrl_info_buf) { 7101 dev_err(&pdev->dev, 7102 "Failed to allocate controller info buffer\n"); 7103 return -ENOMEM; 7104 } 7105 7106 instance->ld_list_buf = 7107 dma_alloc_coherent(&pdev->dev, 7108 sizeof(struct MR_LD_LIST), 7109 &instance->ld_list_buf_h, GFP_KERNEL); 7110 7111 if (!instance->ld_list_buf) { 7112 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n"); 7113 return -ENOMEM; 7114 } 7115 7116 instance->ld_targetid_list_buf = 7117 dma_alloc_coherent(&pdev->dev, 7118 sizeof(struct MR_LD_TARGETID_LIST), 7119 &instance->ld_targetid_list_buf_h, GFP_KERNEL); 7120 7121 if (!instance->ld_targetid_list_buf) { 7122 dev_err(&pdev->dev, 7123 "Failed to allocate LD targetid list buffer\n"); 7124 return -ENOMEM; 7125 } 7126 7127 if (!reset_devices) { 7128 instance->system_info_buf = 7129 dma_alloc_coherent(&pdev->dev, 7130 sizeof(struct MR_DRV_SYSTEM_INFO), 7131 &instance->system_info_h, GFP_KERNEL); 7132 instance->pd_info = 7133 dma_alloc_coherent(&pdev->dev, 7134 sizeof(struct MR_PD_INFO), 7135 &instance->pd_info_h, GFP_KERNEL); 7136 instance->tgt_prop = 7137 dma_alloc_coherent(&pdev->dev, 7138 sizeof(struct MR_TARGET_PROPERTIES), 7139 &instance->tgt_prop_h, GFP_KERNEL); 7140 instance->crash_dump_buf = 7141 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7142 &instance->crash_dump_h, GFP_KERNEL); 7143 7144 if (!instance->system_info_buf) 7145 dev_err(&instance->pdev->dev, 7146 "Failed to allocate system info buffer\n"); 7147 7148 if (!instance->pd_info) 7149 dev_err(&instance->pdev->dev, 7150 "Failed to allocate pd_info buffer\n"); 7151 7152 if (!instance->tgt_prop) 7153 dev_err(&instance->pdev->dev, 7154 "Failed to allocate tgt_prop buffer\n"); 7155 7156 if (!instance->crash_dump_buf) 7157 dev_err(&instance->pdev->dev, 7158 "Failed to allocate crash dump buffer\n"); 7159 } 7160 7161 return 0; 7162 } 7163 7164 /* 7165 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated 7166 * during driver load time 7167 * 7168 * @instance- Adapter soft instance 7169 * 7170 */ 7171 static inline 7172 void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance) 7173 { 7174 struct pci_dev *pdev = instance->pdev; 7175 struct fusion_context *fusion = instance->ctrl_context; 7176 7177 if (instance->evt_detail) 7178 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail), 7179 instance->evt_detail, 7180 instance->evt_detail_h); 7181 7182 if (fusion && fusion->ioc_init_request) 7183 dma_free_coherent(&pdev->dev, 7184 sizeof(struct MPI2_IOC_INIT_REQUEST), 7185 fusion->ioc_init_request, 7186 fusion->ioc_init_request_phys); 7187 7188 if (instance->pd_list_buf) 7189 dma_free_coherent(&pdev->dev, 7190 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), 7191 instance->pd_list_buf, 7192 instance->pd_list_buf_h); 7193 7194 if (instance->ld_list_buf) 7195 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST), 7196 instance->ld_list_buf, 7197 instance->ld_list_buf_h); 7198 7199 if (instance->ld_targetid_list_buf) 7200 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST), 7201 instance->ld_targetid_list_buf, 7202 instance->ld_targetid_list_buf_h); 7203 7204 if (instance->ctrl_info_buf) 7205 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info), 7206 instance->ctrl_info_buf, 7207 instance->ctrl_info_buf_h); 7208 7209 if (instance->system_info_buf) 7210 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO), 7211 instance->system_info_buf, 7212 instance->system_info_h); 7213 7214 if (instance->pd_info) 7215 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO), 7216 instance->pd_info, instance->pd_info_h); 7217 7218 if (instance->tgt_prop) 7219 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES), 7220 instance->tgt_prop, instance->tgt_prop_h); 7221 7222 if (instance->crash_dump_buf) 7223 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE, 7224 instance->crash_dump_buf, 7225 instance->crash_dump_h); 7226 7227 if (instance->snapdump_prop) 7228 dma_free_coherent(&pdev->dev, 7229 sizeof(struct MR_SNAPDUMP_PROPERTIES), 7230 instance->snapdump_prop, 7231 instance->snapdump_prop_h); 7232 7233 if (instance->host_device_list_buf) 7234 dma_free_coherent(&pdev->dev, 7235 HOST_DEVICE_LIST_SZ, 7236 instance->host_device_list_buf, 7237 instance->host_device_list_buf_h); 7238 7239 } 7240 7241 /* 7242 * megasas_init_ctrl_params - Initialize controller's instance 7243 * parameters before FW init 7244 * @instance - Adapter soft instance 7245 * @return - void 7246 */ 7247 static inline void megasas_init_ctrl_params(struct megasas_instance *instance) 7248 { 7249 instance->fw_crash_state = UNAVAILABLE; 7250 7251 megasas_poll_wait_aen = 0; 7252 instance->issuepend_done = 1; 7253 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); 7254 7255 /* 7256 * Initialize locks and queues 7257 */ 7258 INIT_LIST_HEAD(&instance->cmd_pool); 7259 INIT_LIST_HEAD(&instance->internal_reset_pending_q); 7260 7261 atomic_set(&instance->fw_outstanding, 0); 7262 atomic64_set(&instance->total_io_count, 0); 7263 7264 init_waitqueue_head(&instance->int_cmd_wait_q); 7265 init_waitqueue_head(&instance->abort_cmd_wait_q); 7266 7267 spin_lock_init(&instance->crashdump_lock); 7268 spin_lock_init(&instance->mfi_pool_lock); 7269 spin_lock_init(&instance->hba_lock); 7270 spin_lock_init(&instance->stream_lock); 7271 spin_lock_init(&instance->completion_lock); 7272 7273 mutex_init(&instance->reset_mutex); 7274 7275 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || 7276 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) 7277 instance->flag_ieee = 1; 7278 7279 megasas_dbg_lvl = 0; 7280 instance->flag = 0; 7281 instance->unload = 1; 7282 instance->last_time = 0; 7283 instance->disableOnlineCtrlReset = 1; 7284 instance->UnevenSpanSupport = 0; 7285 instance->smp_affinity_enable = smp_affinity_enable ? true : false; 7286 instance->msix_load_balance = false; 7287 7288 if (instance->adapter_type != MFI_SERIES) 7289 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); 7290 else 7291 INIT_WORK(&instance->work_init, process_fw_state_change_wq); 7292 } 7293 7294 /** 7295 * megasas_probe_one - PCI hotplug entry point 7296 * @pdev: PCI device structure 7297 * @id: PCI ids of supported hotplugged adapter 7298 */ 7299 static int megasas_probe_one(struct pci_dev *pdev, 7300 const struct pci_device_id *id) 7301 { 7302 int rval, pos; 7303 struct Scsi_Host *host; 7304 struct megasas_instance *instance; 7305 u16 control = 0; 7306 7307 switch (pdev->device) { 7308 case PCI_DEVICE_ID_LSI_AERO_10E0: 7309 case PCI_DEVICE_ID_LSI_AERO_10E3: 7310 case PCI_DEVICE_ID_LSI_AERO_10E4: 7311 case PCI_DEVICE_ID_LSI_AERO_10E7: 7312 dev_err(&pdev->dev, "Adapter is in non secure mode\n"); 7313 return 1; 7314 case PCI_DEVICE_ID_LSI_AERO_10E1: 7315 case PCI_DEVICE_ID_LSI_AERO_10E5: 7316 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n"); 7317 break; 7318 } 7319 7320 /* Reset MSI-X in the kdump kernel */ 7321 if (reset_devices) { 7322 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); 7323 if (pos) { 7324 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, 7325 &control); 7326 if (control & PCI_MSIX_FLAGS_ENABLE) { 7327 dev_info(&pdev->dev, "resetting MSI-X\n"); 7328 pci_write_config_word(pdev, 7329 pos + PCI_MSIX_FLAGS, 7330 control & 7331 ~PCI_MSIX_FLAGS_ENABLE); 7332 } 7333 } 7334 } 7335 7336 /* 7337 * PCI prepping: enable device set bus mastering and dma mask 7338 */ 7339 rval = pci_enable_device_mem(pdev); 7340 7341 if (rval) { 7342 return rval; 7343 } 7344 7345 pci_set_master(pdev); 7346 7347 host = scsi_host_alloc(&megasas_template, 7348 sizeof(struct megasas_instance)); 7349 7350 if (!host) { 7351 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); 7352 goto fail_alloc_instance; 7353 } 7354 7355 instance = (struct megasas_instance *)host->hostdata; 7356 memset(instance, 0, sizeof(*instance)); 7357 atomic_set(&instance->fw_reset_no_pci_access, 0); 7358 7359 /* 7360 * Initialize PCI related and misc parameters 7361 */ 7362 instance->pdev = pdev; 7363 instance->host = host; 7364 instance->unique_id = pdev->bus->number << 8 | pdev->devfn; 7365 instance->init_id = MEGASAS_DEFAULT_INIT_ID; 7366 7367 megasas_set_adapter_type(instance); 7368 7369 /* 7370 * Initialize MFI Firmware 7371 */ 7372 if (megasas_init_fw(instance)) 7373 goto fail_init_mfi; 7374 7375 if (instance->requestorId) { 7376 if (instance->PlasmaFW111) { 7377 instance->vf_affiliation_111 = 7378 dma_alloc_coherent(&pdev->dev, 7379 sizeof(struct MR_LD_VF_AFFILIATION_111), 7380 &instance->vf_affiliation_111_h, 7381 GFP_KERNEL); 7382 if (!instance->vf_affiliation_111) 7383 dev_warn(&pdev->dev, "Can't allocate " 7384 "memory for VF affiliation buffer\n"); 7385 } else { 7386 instance->vf_affiliation = 7387 dma_alloc_coherent(&pdev->dev, 7388 (MAX_LOGICAL_DRIVES + 1) * 7389 sizeof(struct MR_LD_VF_AFFILIATION), 7390 &instance->vf_affiliation_h, 7391 GFP_KERNEL); 7392 if (!instance->vf_affiliation) 7393 dev_warn(&pdev->dev, "Can't allocate " 7394 "memory for VF affiliation buffer\n"); 7395 } 7396 } 7397 7398 /* 7399 * Store instance in PCI softstate 7400 */ 7401 pci_set_drvdata(pdev, instance); 7402 7403 /* 7404 * Add this controller to megasas_mgmt_info structure so that it 7405 * can be exported to management applications 7406 */ 7407 megasas_mgmt_info.count++; 7408 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; 7409 megasas_mgmt_info.max_index++; 7410 7411 /* 7412 * Register with SCSI mid-layer 7413 */ 7414 if (megasas_io_attach(instance)) 7415 goto fail_io_attach; 7416 7417 instance->unload = 0; 7418 /* 7419 * Trigger SCSI to scan our drives 7420 */ 7421 if (!instance->enable_fw_dev_list || 7422 (instance->host_device_list_buf->count > 0)) 7423 scsi_scan_host(host); 7424 7425 /* 7426 * Initiate AEN (Asynchronous Event Notification) 7427 */ 7428 if (megasas_start_aen(instance)) { 7429 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); 7430 goto fail_start_aen; 7431 } 7432 7433 megasas_setup_debugfs(instance); 7434 7435 /* Get current SR-IOV LD/VF affiliation */ 7436 if (instance->requestorId) 7437 megasas_get_ld_vf_affiliation(instance, 1); 7438 7439 return 0; 7440 7441 fail_start_aen: 7442 fail_io_attach: 7443 megasas_mgmt_info.count--; 7444 megasas_mgmt_info.max_index--; 7445 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; 7446 7447 instance->instancet->disable_intr(instance); 7448 megasas_destroy_irqs(instance); 7449 7450 if (instance->adapter_type != MFI_SERIES) 7451 megasas_release_fusion(instance); 7452 else 7453 megasas_release_mfi(instance); 7454 if (instance->msix_vectors) 7455 pci_free_irq_vectors(instance->pdev); 7456 fail_init_mfi: 7457 scsi_host_put(host); 7458 fail_alloc_instance: 7459 pci_disable_device(pdev); 7460 7461 return -ENODEV; 7462 } 7463 7464 /** 7465 * megasas_flush_cache - Requests FW to flush all its caches 7466 * @instance: Adapter soft state 7467 */ 7468 static void megasas_flush_cache(struct megasas_instance *instance) 7469 { 7470 struct megasas_cmd *cmd; 7471 struct megasas_dcmd_frame *dcmd; 7472 7473 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7474 return; 7475 7476 cmd = megasas_get_cmd(instance); 7477 7478 if (!cmd) 7479 return; 7480 7481 dcmd = &cmd->frame->dcmd; 7482 7483 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7484 7485 dcmd->cmd = MFI_CMD_DCMD; 7486 dcmd->cmd_status = 0x0; 7487 dcmd->sge_count = 0; 7488 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7489 dcmd->timeout = 0; 7490 dcmd->pad_0 = 0; 7491 dcmd->data_xfer_len = 0; 7492 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); 7493 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; 7494 7495 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7496 != DCMD_SUCCESS) { 7497 dev_err(&instance->pdev->dev, 7498 "return from %s %d\n", __func__, __LINE__); 7499 return; 7500 } 7501 7502 megasas_return_cmd(instance, cmd); 7503 } 7504 7505 /** 7506 * megasas_shutdown_controller - Instructs FW to shutdown the controller 7507 * @instance: Adapter soft state 7508 * @opcode: Shutdown/Hibernate 7509 */ 7510 static void megasas_shutdown_controller(struct megasas_instance *instance, 7511 u32 opcode) 7512 { 7513 struct megasas_cmd *cmd; 7514 struct megasas_dcmd_frame *dcmd; 7515 7516 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) 7517 return; 7518 7519 cmd = megasas_get_cmd(instance); 7520 7521 if (!cmd) 7522 return; 7523 7524 if (instance->aen_cmd) 7525 megasas_issue_blocked_abort_cmd(instance, 7526 instance->aen_cmd, MFI_IO_TIMEOUT_SECS); 7527 if (instance->map_update_cmd) 7528 megasas_issue_blocked_abort_cmd(instance, 7529 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); 7530 if (instance->jbod_seq_cmd) 7531 megasas_issue_blocked_abort_cmd(instance, 7532 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); 7533 7534 dcmd = &cmd->frame->dcmd; 7535 7536 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); 7537 7538 dcmd->cmd = MFI_CMD_DCMD; 7539 dcmd->cmd_status = 0x0; 7540 dcmd->sge_count = 0; 7541 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); 7542 dcmd->timeout = 0; 7543 dcmd->pad_0 = 0; 7544 dcmd->data_xfer_len = 0; 7545 dcmd->opcode = cpu_to_le32(opcode); 7546 7547 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) 7548 != DCMD_SUCCESS) { 7549 dev_err(&instance->pdev->dev, 7550 "return from %s %d\n", __func__, __LINE__); 7551 return; 7552 } 7553 7554 megasas_return_cmd(instance, cmd); 7555 } 7556 7557 #ifdef CONFIG_PM 7558 /** 7559 * megasas_suspend - driver suspend entry point 7560 * @pdev: PCI device structure 7561 * @state: PCI power state to suspend routine 7562 */ 7563 static int 7564 megasas_suspend(struct pci_dev *pdev, pm_message_t state) 7565 { 7566 struct megasas_instance *instance; 7567 7568 instance = pci_get_drvdata(pdev); 7569 7570 if (!instance) 7571 return 0; 7572 7573 instance->unload = 1; 7574 7575 dev_info(&pdev->dev, "%s is called\n", __func__); 7576 7577 /* Shutdown SR-IOV heartbeat timer */ 7578 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7579 del_timer_sync(&instance->sriov_heartbeat_timer); 7580 7581 /* Stop the FW fault detection watchdog */ 7582 if (instance->adapter_type != MFI_SERIES) 7583 megasas_fusion_stop_watchdog(instance); 7584 7585 megasas_flush_cache(instance); 7586 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); 7587 7588 /* cancel the delayed work if this work still in queue */ 7589 if (instance->ev != NULL) { 7590 struct megasas_aen_event *ev = instance->ev; 7591 cancel_delayed_work_sync(&ev->hotplug_work); 7592 instance->ev = NULL; 7593 } 7594 7595 tasklet_kill(&instance->isr_tasklet); 7596 7597 pci_set_drvdata(instance->pdev, instance); 7598 instance->instancet->disable_intr(instance); 7599 7600 megasas_destroy_irqs(instance); 7601 7602 if (instance->msix_vectors) 7603 pci_free_irq_vectors(instance->pdev); 7604 7605 pci_save_state(pdev); 7606 pci_disable_device(pdev); 7607 7608 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 7609 7610 return 0; 7611 } 7612 7613 /** 7614 * megasas_resume- driver resume entry point 7615 * @pdev: PCI device structure 7616 */ 7617 static int 7618 megasas_resume(struct pci_dev *pdev) 7619 { 7620 int rval; 7621 struct Scsi_Host *host; 7622 struct megasas_instance *instance; 7623 u32 status_reg; 7624 7625 instance = pci_get_drvdata(pdev); 7626 7627 if (!instance) 7628 return 0; 7629 7630 host = instance->host; 7631 pci_set_power_state(pdev, PCI_D0); 7632 pci_enable_wake(pdev, PCI_D0, 0); 7633 pci_restore_state(pdev); 7634 7635 dev_info(&pdev->dev, "%s is called\n", __func__); 7636 /* 7637 * PCI prepping: enable device set bus mastering and dma mask 7638 */ 7639 rval = pci_enable_device_mem(pdev); 7640 7641 if (rval) { 7642 dev_err(&pdev->dev, "Enable device failed\n"); 7643 return rval; 7644 } 7645 7646 pci_set_master(pdev); 7647 7648 /* 7649 * We expect the FW state to be READY 7650 */ 7651 7652 if (megasas_transition_to_ready(instance, 0)) { 7653 dev_info(&instance->pdev->dev, 7654 "Failed to transition controller to ready from %s!\n", 7655 __func__); 7656 if (instance->adapter_type != MFI_SERIES) { 7657 status_reg = 7658 instance->instancet->read_fw_status_reg(instance); 7659 if (!(status_reg & MFI_RESET_ADAPTER) || 7660 ((megasas_adp_reset_wait_for_ready 7661 (instance, true, 0)) == FAILED)) 7662 goto fail_ready_state; 7663 } else { 7664 atomic_set(&instance->fw_reset_no_pci_access, 1); 7665 instance->instancet->adp_reset 7666 (instance, instance->reg_set); 7667 atomic_set(&instance->fw_reset_no_pci_access, 0); 7668 7669 /* waiting for about 30 seconds before retry */ 7670 ssleep(30); 7671 7672 if (megasas_transition_to_ready(instance, 0)) 7673 goto fail_ready_state; 7674 } 7675 7676 dev_info(&instance->pdev->dev, 7677 "FW restarted successfully from %s!\n", 7678 __func__); 7679 } 7680 if (megasas_set_dma_mask(instance)) 7681 goto fail_set_dma_mask; 7682 7683 /* 7684 * Initialize MFI Firmware 7685 */ 7686 7687 atomic_set(&instance->fw_outstanding, 0); 7688 atomic_set(&instance->ldio_outstanding, 0); 7689 7690 /* Now re-enable MSI-X */ 7691 if (instance->msix_vectors) 7692 megasas_alloc_irq_vectors(instance); 7693 7694 if (!instance->msix_vectors) { 7695 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1, 7696 PCI_IRQ_LEGACY); 7697 if (rval < 0) 7698 goto fail_reenable_msix; 7699 } 7700 7701 megasas_setup_reply_map(instance); 7702 7703 if (instance->adapter_type != MFI_SERIES) { 7704 megasas_reset_reply_desc(instance); 7705 if (megasas_ioc_init_fusion(instance)) { 7706 megasas_free_cmds(instance); 7707 megasas_free_cmds_fusion(instance); 7708 goto fail_init_mfi; 7709 } 7710 if (!megasas_get_map_info(instance)) 7711 megasas_sync_map_info(instance); 7712 } else { 7713 *instance->producer = 0; 7714 *instance->consumer = 0; 7715 if (megasas_issue_init_mfi(instance)) 7716 goto fail_init_mfi; 7717 } 7718 7719 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) 7720 goto fail_init_mfi; 7721 7722 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, 7723 (unsigned long)instance); 7724 7725 if (instance->msix_vectors ? 7726 megasas_setup_irqs_msix(instance, 0) : 7727 megasas_setup_irqs_ioapic(instance)) 7728 goto fail_init_mfi; 7729 7730 if (instance->adapter_type != MFI_SERIES) 7731 megasas_setup_irq_poll(instance); 7732 7733 /* Re-launch SR-IOV heartbeat timer */ 7734 if (instance->requestorId) { 7735 if (!megasas_sriov_start_heartbeat(instance, 0)) 7736 megasas_start_timer(instance); 7737 else { 7738 instance->skip_heartbeat_timer_del = 1; 7739 goto fail_init_mfi; 7740 } 7741 } 7742 7743 instance->instancet->enable_intr(instance); 7744 megasas_setup_jbod_map(instance); 7745 instance->unload = 0; 7746 7747 /* 7748 * Initiate AEN (Asynchronous Event Notification) 7749 */ 7750 if (megasas_start_aen(instance)) 7751 dev_err(&instance->pdev->dev, "Start AEN failed\n"); 7752 7753 /* Re-launch FW fault watchdog */ 7754 if (instance->adapter_type != MFI_SERIES) 7755 if (megasas_fusion_start_watchdog(instance) != SUCCESS) 7756 goto fail_start_watchdog; 7757 7758 return 0; 7759 7760 fail_start_watchdog: 7761 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7762 del_timer_sync(&instance->sriov_heartbeat_timer); 7763 fail_init_mfi: 7764 megasas_free_ctrl_dma_buffers(instance); 7765 megasas_free_ctrl_mem(instance); 7766 scsi_host_put(host); 7767 7768 fail_reenable_msix: 7769 fail_set_dma_mask: 7770 fail_ready_state: 7771 7772 pci_disable_device(pdev); 7773 7774 return -ENODEV; 7775 } 7776 #else 7777 #define megasas_suspend NULL 7778 #define megasas_resume NULL 7779 #endif 7780 7781 static inline int 7782 megasas_wait_for_adapter_operational(struct megasas_instance *instance) 7783 { 7784 int wait_time = MEGASAS_RESET_WAIT_TIME * 2; 7785 int i; 7786 u8 adp_state; 7787 7788 for (i = 0; i < wait_time; i++) { 7789 adp_state = atomic_read(&instance->adprecovery); 7790 if ((adp_state == MEGASAS_HBA_OPERATIONAL) || 7791 (adp_state == MEGASAS_HW_CRITICAL_ERROR)) 7792 break; 7793 7794 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) 7795 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n"); 7796 7797 msleep(1000); 7798 } 7799 7800 if (adp_state != MEGASAS_HBA_OPERATIONAL) { 7801 dev_info(&instance->pdev->dev, 7802 "%s HBA failed to become operational, adp_state %d\n", 7803 __func__, adp_state); 7804 return 1; 7805 } 7806 7807 return 0; 7808 } 7809 7810 /** 7811 * megasas_detach_one - PCI hot"un"plug entry point 7812 * @pdev: PCI device structure 7813 */ 7814 static void megasas_detach_one(struct pci_dev *pdev) 7815 { 7816 int i; 7817 struct Scsi_Host *host; 7818 struct megasas_instance *instance; 7819 struct fusion_context *fusion; 7820 u32 pd_seq_map_sz; 7821 7822 instance = pci_get_drvdata(pdev); 7823 7824 if (!instance) 7825 return; 7826 7827 host = instance->host; 7828 fusion = instance->ctrl_context; 7829 7830 /* Shutdown SR-IOV heartbeat timer */ 7831 if (instance->requestorId && !instance->skip_heartbeat_timer_del) 7832 del_timer_sync(&instance->sriov_heartbeat_timer); 7833 7834 /* Stop the FW fault detection watchdog */ 7835 if (instance->adapter_type != MFI_SERIES) 7836 megasas_fusion_stop_watchdog(instance); 7837 7838 if (instance->fw_crash_state != UNAVAILABLE) 7839 megasas_free_host_crash_buffer(instance); 7840 scsi_remove_host(instance->host); 7841 instance->unload = 1; 7842 7843 if (megasas_wait_for_adapter_operational(instance)) 7844 goto skip_firing_dcmds; 7845 7846 megasas_flush_cache(instance); 7847 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7848 7849 skip_firing_dcmds: 7850 /* cancel the delayed work if this work still in queue*/ 7851 if (instance->ev != NULL) { 7852 struct megasas_aen_event *ev = instance->ev; 7853 cancel_delayed_work_sync(&ev->hotplug_work); 7854 instance->ev = NULL; 7855 } 7856 7857 /* cancel all wait events */ 7858 wake_up_all(&instance->int_cmd_wait_q); 7859 7860 tasklet_kill(&instance->isr_tasklet); 7861 7862 /* 7863 * Take the instance off the instance array. Note that we will not 7864 * decrement the max_index. We let this array be sparse array 7865 */ 7866 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 7867 if (megasas_mgmt_info.instance[i] == instance) { 7868 megasas_mgmt_info.count--; 7869 megasas_mgmt_info.instance[i] = NULL; 7870 7871 break; 7872 } 7873 } 7874 7875 instance->instancet->disable_intr(instance); 7876 7877 megasas_destroy_irqs(instance); 7878 7879 if (instance->msix_vectors) 7880 pci_free_irq_vectors(instance->pdev); 7881 7882 if (instance->adapter_type >= VENTURA_SERIES) { 7883 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) 7884 kfree(fusion->stream_detect_by_ld[i]); 7885 kfree(fusion->stream_detect_by_ld); 7886 fusion->stream_detect_by_ld = NULL; 7887 } 7888 7889 7890 if (instance->adapter_type != MFI_SERIES) { 7891 megasas_release_fusion(instance); 7892 pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + 7893 (sizeof(struct MR_PD_CFG_SEQ) * 7894 (MAX_PHYSICAL_DEVICES - 1)); 7895 for (i = 0; i < 2 ; i++) { 7896 if (fusion->ld_map[i]) 7897 dma_free_coherent(&instance->pdev->dev, 7898 fusion->max_map_sz, 7899 fusion->ld_map[i], 7900 fusion->ld_map_phys[i]); 7901 if (fusion->ld_drv_map[i]) { 7902 if (is_vmalloc_addr(fusion->ld_drv_map[i])) 7903 vfree(fusion->ld_drv_map[i]); 7904 else 7905 free_pages((ulong)fusion->ld_drv_map[i], 7906 fusion->drv_map_pages); 7907 } 7908 7909 if (fusion->pd_seq_sync[i]) 7910 dma_free_coherent(&instance->pdev->dev, 7911 pd_seq_map_sz, 7912 fusion->pd_seq_sync[i], 7913 fusion->pd_seq_phys[i]); 7914 } 7915 } else { 7916 megasas_release_mfi(instance); 7917 } 7918 7919 if (instance->vf_affiliation) 7920 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) * 7921 sizeof(struct MR_LD_VF_AFFILIATION), 7922 instance->vf_affiliation, 7923 instance->vf_affiliation_h); 7924 7925 if (instance->vf_affiliation_111) 7926 dma_free_coherent(&pdev->dev, 7927 sizeof(struct MR_LD_VF_AFFILIATION_111), 7928 instance->vf_affiliation_111, 7929 instance->vf_affiliation_111_h); 7930 7931 if (instance->hb_host_mem) 7932 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM), 7933 instance->hb_host_mem, 7934 instance->hb_host_mem_h); 7935 7936 megasas_free_ctrl_dma_buffers(instance); 7937 7938 megasas_free_ctrl_mem(instance); 7939 7940 megasas_destroy_debugfs(instance); 7941 7942 scsi_host_put(host); 7943 7944 pci_disable_device(pdev); 7945 } 7946 7947 /** 7948 * megasas_shutdown - Shutdown entry point 7949 * @pdev: Generic device structure 7950 */ 7951 static void megasas_shutdown(struct pci_dev *pdev) 7952 { 7953 struct megasas_instance *instance = pci_get_drvdata(pdev); 7954 7955 if (!instance) 7956 return; 7957 7958 instance->unload = 1; 7959 7960 if (megasas_wait_for_adapter_operational(instance)) 7961 goto skip_firing_dcmds; 7962 7963 megasas_flush_cache(instance); 7964 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); 7965 7966 skip_firing_dcmds: 7967 instance->instancet->disable_intr(instance); 7968 megasas_destroy_irqs(instance); 7969 7970 if (instance->msix_vectors) 7971 pci_free_irq_vectors(instance->pdev); 7972 } 7973 7974 /* 7975 * megasas_mgmt_open - char node "open" entry point 7976 * @inode: char node inode 7977 * @filep: char node file 7978 */ 7979 static int megasas_mgmt_open(struct inode *inode, struct file *filep) 7980 { 7981 /* 7982 * Allow only those users with admin rights 7983 */ 7984 if (!capable(CAP_SYS_ADMIN)) 7985 return -EACCES; 7986 7987 return 0; 7988 } 7989 7990 /* 7991 * megasas_mgmt_fasync - Async notifier registration from applications 7992 * @fd: char node file descriptor number 7993 * @filep: char node file 7994 * @mode: notifier on/off 7995 * 7996 * This function adds the calling process to a driver global queue. When an 7997 * event occurs, SIGIO will be sent to all processes in this queue. 7998 */ 7999 static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) 8000 { 8001 int rc; 8002 8003 mutex_lock(&megasas_async_queue_mutex); 8004 8005 rc = fasync_helper(fd, filep, mode, &megasas_async_queue); 8006 8007 mutex_unlock(&megasas_async_queue_mutex); 8008 8009 if (rc >= 0) { 8010 /* For sanity check when we get ioctl */ 8011 filep->private_data = filep; 8012 return 0; 8013 } 8014 8015 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); 8016 8017 return rc; 8018 } 8019 8020 /* 8021 * megasas_mgmt_poll - char node "poll" entry point 8022 * @filep: char node file 8023 * @wait: Events to poll for 8024 */ 8025 static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait) 8026 { 8027 __poll_t mask; 8028 unsigned long flags; 8029 8030 poll_wait(file, &megasas_poll_wait, wait); 8031 spin_lock_irqsave(&poll_aen_lock, flags); 8032 if (megasas_poll_wait_aen) 8033 mask = (EPOLLIN | EPOLLRDNORM); 8034 else 8035 mask = 0; 8036 megasas_poll_wait_aen = 0; 8037 spin_unlock_irqrestore(&poll_aen_lock, flags); 8038 return mask; 8039 } 8040 8041 /* 8042 * megasas_set_crash_dump_params_ioctl: 8043 * Send CRASH_DUMP_MODE DCMD to all controllers 8044 * @cmd: MFI command frame 8045 */ 8046 8047 static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) 8048 { 8049 struct megasas_instance *local_instance; 8050 int i, error = 0; 8051 int crash_support; 8052 8053 crash_support = cmd->frame->dcmd.mbox.w[0]; 8054 8055 for (i = 0; i < megasas_mgmt_info.max_index; i++) { 8056 local_instance = megasas_mgmt_info.instance[i]; 8057 if (local_instance && local_instance->crash_dump_drv_support) { 8058 if ((atomic_read(&local_instance->adprecovery) == 8059 MEGASAS_HBA_OPERATIONAL) && 8060 !megasas_set_crash_dump_params(local_instance, 8061 crash_support)) { 8062 local_instance->crash_dump_app_support = 8063 crash_support; 8064 dev_info(&local_instance->pdev->dev, 8065 "Application firmware crash " 8066 "dump mode set success\n"); 8067 error = 0; 8068 } else { 8069 dev_info(&local_instance->pdev->dev, 8070 "Application firmware crash " 8071 "dump mode set failed\n"); 8072 error = -1; 8073 } 8074 } 8075 } 8076 return error; 8077 } 8078 8079 /** 8080 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW 8081 * @instance: Adapter soft state 8082 * @user_ioc: User's ioctl packet 8083 * @ioc: ioctl packet 8084 */ 8085 static int 8086 megasas_mgmt_fw_ioctl(struct megasas_instance *instance, 8087 struct megasas_iocpacket __user * user_ioc, 8088 struct megasas_iocpacket *ioc) 8089 { 8090 struct megasas_sge64 *kern_sge64 = NULL; 8091 struct megasas_sge32 *kern_sge32 = NULL; 8092 struct megasas_cmd *cmd; 8093 void *kbuff_arr[MAX_IOCTL_SGE]; 8094 dma_addr_t buf_handle = 0; 8095 int error = 0, i; 8096 void *sense = NULL; 8097 dma_addr_t sense_handle; 8098 unsigned long *sense_ptr; 8099 u32 opcode = 0; 8100 int ret = DCMD_SUCCESS; 8101 8102 memset(kbuff_arr, 0, sizeof(kbuff_arr)); 8103 8104 if (ioc->sge_count > MAX_IOCTL_SGE) { 8105 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", 8106 ioc->sge_count, MAX_IOCTL_SGE); 8107 return -EINVAL; 8108 } 8109 8110 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) || 8111 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) && 8112 !instance->support_nvme_passthru) || 8113 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) && 8114 !instance->support_pci_lane_margining)) { 8115 dev_err(&instance->pdev->dev, 8116 "Received invalid ioctl command 0x%x\n", 8117 ioc->frame.hdr.cmd); 8118 return -ENOTSUPP; 8119 } 8120 8121 cmd = megasas_get_cmd(instance); 8122 if (!cmd) { 8123 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); 8124 return -ENOMEM; 8125 } 8126 8127 /* 8128 * User's IOCTL packet has 2 frames (maximum). Copy those two 8129 * frames into our cmd's frames. cmd->frame's context will get 8130 * overwritten when we copy from user's frames. So set that value 8131 * alone separately 8132 */ 8133 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); 8134 cmd->frame->hdr.context = cpu_to_le32(cmd->index); 8135 cmd->frame->hdr.pad_0 = 0; 8136 8137 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE); 8138 8139 if (instance->consistent_mask_64bit) 8140 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 | 8141 MFI_FRAME_SENSE64)); 8142 else 8143 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 | 8144 MFI_FRAME_SENSE64)); 8145 8146 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD) 8147 opcode = le32_to_cpu(cmd->frame->dcmd.opcode); 8148 8149 if (opcode == MR_DCMD_CTRL_SHUTDOWN) { 8150 mutex_lock(&instance->reset_mutex); 8151 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) { 8152 megasas_return_cmd(instance, cmd); 8153 mutex_unlock(&instance->reset_mutex); 8154 return -1; 8155 } 8156 mutex_unlock(&instance->reset_mutex); 8157 } 8158 8159 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { 8160 error = megasas_set_crash_dump_params_ioctl(cmd); 8161 megasas_return_cmd(instance, cmd); 8162 return error; 8163 } 8164 8165 /* 8166 * The management interface between applications and the fw uses 8167 * MFI frames. E.g, RAID configuration changes, LD property changes 8168 * etc are accomplishes through different kinds of MFI frames. The 8169 * driver needs to care only about substituting user buffers with 8170 * kernel buffers in SGLs. The location of SGL is embedded in the 8171 * struct iocpacket itself. 8172 */ 8173 if (instance->consistent_mask_64bit) 8174 kern_sge64 = (struct megasas_sge64 *) 8175 ((unsigned long)cmd->frame + ioc->sgl_off); 8176 else 8177 kern_sge32 = (struct megasas_sge32 *) 8178 ((unsigned long)cmd->frame + ioc->sgl_off); 8179 8180 /* 8181 * For each user buffer, create a mirror buffer and copy in 8182 */ 8183 for (i = 0; i < ioc->sge_count; i++) { 8184 if (!ioc->sgl[i].iov_len) 8185 continue; 8186 8187 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, 8188 ioc->sgl[i].iov_len, 8189 &buf_handle, GFP_KERNEL); 8190 if (!kbuff_arr[i]) { 8191 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " 8192 "kernel SGL buffer for IOCTL\n"); 8193 error = -ENOMEM; 8194 goto out; 8195 } 8196 8197 /* 8198 * We don't change the dma_coherent_mask, so 8199 * dma_alloc_coherent only returns 32bit addresses 8200 */ 8201 if (instance->consistent_mask_64bit) { 8202 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle); 8203 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8204 } else { 8205 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); 8206 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); 8207 } 8208 8209 /* 8210 * We created a kernel buffer corresponding to the 8211 * user buffer. Now copy in from the user buffer 8212 */ 8213 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, 8214 (u32) (ioc->sgl[i].iov_len))) { 8215 error = -EFAULT; 8216 goto out; 8217 } 8218 } 8219 8220 if (ioc->sense_len) { 8221 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, 8222 &sense_handle, GFP_KERNEL); 8223 if (!sense) { 8224 error = -ENOMEM; 8225 goto out; 8226 } 8227 8228 sense_ptr = 8229 (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); 8230 if (instance->consistent_mask_64bit) 8231 *sense_ptr = cpu_to_le64(sense_handle); 8232 else 8233 *sense_ptr = cpu_to_le32(sense_handle); 8234 } 8235 8236 /* 8237 * Set the sync_cmd flag so that the ISR knows not to complete this 8238 * cmd to the SCSI mid-layer 8239 */ 8240 cmd->sync_cmd = 1; 8241 8242 ret = megasas_issue_blocked_cmd(instance, cmd, 0); 8243 switch (ret) { 8244 case DCMD_INIT: 8245 case DCMD_BUSY: 8246 cmd->sync_cmd = 0; 8247 dev_err(&instance->pdev->dev, 8248 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n", 8249 __func__, __LINE__, cmd->frame->hdr.cmd, opcode, 8250 cmd->cmd_status_drv); 8251 error = -EBUSY; 8252 goto out; 8253 } 8254 8255 cmd->sync_cmd = 0; 8256 8257 if (instance->unload == 1) { 8258 dev_info(&instance->pdev->dev, "Driver unload is in progress " 8259 "don't submit data to application\n"); 8260 goto out; 8261 } 8262 /* 8263 * copy out the kernel buffers to user buffers 8264 */ 8265 for (i = 0; i < ioc->sge_count; i++) { 8266 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], 8267 ioc->sgl[i].iov_len)) { 8268 error = -EFAULT; 8269 goto out; 8270 } 8271 } 8272 8273 /* 8274 * copy out the sense 8275 */ 8276 if (ioc->sense_len) { 8277 /* 8278 * sense_ptr points to the location that has the user 8279 * sense buffer address 8280 */ 8281 sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + 8282 ioc->sense_off); 8283 8284 if (copy_to_user((void __user *)((unsigned long) 8285 get_unaligned((unsigned long *)sense_ptr)), 8286 sense, ioc->sense_len)) { 8287 dev_err(&instance->pdev->dev, "Failed to copy out to user " 8288 "sense data\n"); 8289 error = -EFAULT; 8290 goto out; 8291 } 8292 } 8293 8294 /* 8295 * copy the status codes returned by the fw 8296 */ 8297 if (copy_to_user(&user_ioc->frame.hdr.cmd_status, 8298 &cmd->frame->hdr.cmd_status, sizeof(u8))) { 8299 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); 8300 error = -EFAULT; 8301 } 8302 8303 out: 8304 if (sense) { 8305 dma_free_coherent(&instance->pdev->dev, ioc->sense_len, 8306 sense, sense_handle); 8307 } 8308 8309 for (i = 0; i < ioc->sge_count; i++) { 8310 if (kbuff_arr[i]) { 8311 if (instance->consistent_mask_64bit) 8312 dma_free_coherent(&instance->pdev->dev, 8313 le32_to_cpu(kern_sge64[i].length), 8314 kbuff_arr[i], 8315 le64_to_cpu(kern_sge64[i].phys_addr)); 8316 else 8317 dma_free_coherent(&instance->pdev->dev, 8318 le32_to_cpu(kern_sge32[i].length), 8319 kbuff_arr[i], 8320 le32_to_cpu(kern_sge32[i].phys_addr)); 8321 kbuff_arr[i] = NULL; 8322 } 8323 } 8324 8325 megasas_return_cmd(instance, cmd); 8326 return error; 8327 } 8328 8329 static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) 8330 { 8331 struct megasas_iocpacket __user *user_ioc = 8332 (struct megasas_iocpacket __user *)arg; 8333 struct megasas_iocpacket *ioc; 8334 struct megasas_instance *instance; 8335 int error; 8336 8337 ioc = memdup_user(user_ioc, sizeof(*ioc)); 8338 if (IS_ERR(ioc)) 8339 return PTR_ERR(ioc); 8340 8341 instance = megasas_lookup_instance(ioc->host_no); 8342 if (!instance) { 8343 error = -ENODEV; 8344 goto out_kfree_ioc; 8345 } 8346 8347 /* Block ioctls in VF mode */ 8348 if (instance->requestorId && !allow_vf_ioctls) { 8349 error = -ENODEV; 8350 goto out_kfree_ioc; 8351 } 8352 8353 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8354 dev_err(&instance->pdev->dev, "Controller in crit error\n"); 8355 error = -ENODEV; 8356 goto out_kfree_ioc; 8357 } 8358 8359 if (instance->unload == 1) { 8360 error = -ENODEV; 8361 goto out_kfree_ioc; 8362 } 8363 8364 if (down_interruptible(&instance->ioctl_sem)) { 8365 error = -ERESTARTSYS; 8366 goto out_kfree_ioc; 8367 } 8368 8369 if (megasas_wait_for_adapter_operational(instance)) { 8370 error = -ENODEV; 8371 goto out_up; 8372 } 8373 8374 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); 8375 out_up: 8376 up(&instance->ioctl_sem); 8377 8378 out_kfree_ioc: 8379 kfree(ioc); 8380 return error; 8381 } 8382 8383 static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) 8384 { 8385 struct megasas_instance *instance; 8386 struct megasas_aen aen; 8387 int error; 8388 8389 if (file->private_data != file) { 8390 printk(KERN_DEBUG "megasas: fasync_helper was not " 8391 "called first\n"); 8392 return -EINVAL; 8393 } 8394 8395 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) 8396 return -EFAULT; 8397 8398 instance = megasas_lookup_instance(aen.host_no); 8399 8400 if (!instance) 8401 return -ENODEV; 8402 8403 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { 8404 return -ENODEV; 8405 } 8406 8407 if (instance->unload == 1) { 8408 return -ENODEV; 8409 } 8410 8411 if (megasas_wait_for_adapter_operational(instance)) 8412 return -ENODEV; 8413 8414 mutex_lock(&instance->reset_mutex); 8415 error = megasas_register_aen(instance, aen.seq_num, 8416 aen.class_locale_word); 8417 mutex_unlock(&instance->reset_mutex); 8418 return error; 8419 } 8420 8421 /** 8422 * megasas_mgmt_ioctl - char node ioctl entry point 8423 * @file: char device file pointer 8424 * @cmd: ioctl command 8425 * @arg: ioctl command arguments address 8426 */ 8427 static long 8428 megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 8429 { 8430 switch (cmd) { 8431 case MEGASAS_IOC_FIRMWARE: 8432 return megasas_mgmt_ioctl_fw(file, arg); 8433 8434 case MEGASAS_IOC_GET_AEN: 8435 return megasas_mgmt_ioctl_aen(file, arg); 8436 } 8437 8438 return -ENOTTY; 8439 } 8440 8441 #ifdef CONFIG_COMPAT 8442 static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) 8443 { 8444 struct compat_megasas_iocpacket __user *cioc = 8445 (struct compat_megasas_iocpacket __user *)arg; 8446 struct megasas_iocpacket __user *ioc = 8447 compat_alloc_user_space(sizeof(struct megasas_iocpacket)); 8448 int i; 8449 int error = 0; 8450 compat_uptr_t ptr; 8451 u32 local_sense_off; 8452 u32 local_sense_len; 8453 u32 user_sense_off; 8454 8455 if (clear_user(ioc, sizeof(*ioc))) 8456 return -EFAULT; 8457 8458 if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || 8459 copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || 8460 copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || 8461 copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || 8462 copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || 8463 copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) 8464 return -EFAULT; 8465 8466 /* 8467 * The sense_ptr is used in megasas_mgmt_fw_ioctl only when 8468 * sense_len is not null, so prepare the 64bit value under 8469 * the same condition. 8470 */ 8471 if (get_user(local_sense_off, &ioc->sense_off) || 8472 get_user(local_sense_len, &ioc->sense_len) || 8473 get_user(user_sense_off, &cioc->sense_off)) 8474 return -EFAULT; 8475 8476 if (local_sense_off != user_sense_off) 8477 return -EINVAL; 8478 8479 if (local_sense_len) { 8480 void __user **sense_ioc_ptr = 8481 (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); 8482 compat_uptr_t *sense_cioc_ptr = 8483 (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); 8484 if (get_user(ptr, sense_cioc_ptr) || 8485 put_user(compat_ptr(ptr), sense_ioc_ptr)) 8486 return -EFAULT; 8487 } 8488 8489 for (i = 0; i < MAX_IOCTL_SGE; i++) { 8490 if (get_user(ptr, &cioc->sgl[i].iov_base) || 8491 put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || 8492 copy_in_user(&ioc->sgl[i].iov_len, 8493 &cioc->sgl[i].iov_len, sizeof(compat_size_t))) 8494 return -EFAULT; 8495 } 8496 8497 error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); 8498 8499 if (copy_in_user(&cioc->frame.hdr.cmd_status, 8500 &ioc->frame.hdr.cmd_status, sizeof(u8))) { 8501 printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); 8502 return -EFAULT; 8503 } 8504 return error; 8505 } 8506 8507 static long 8508 megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, 8509 unsigned long arg) 8510 { 8511 switch (cmd) { 8512 case MEGASAS_IOC_FIRMWARE32: 8513 return megasas_mgmt_compat_ioctl_fw(file, arg); 8514 case MEGASAS_IOC_GET_AEN: 8515 return megasas_mgmt_ioctl_aen(file, arg); 8516 } 8517 8518 return -ENOTTY; 8519 } 8520 #endif 8521 8522 /* 8523 * File operations structure for management interface 8524 */ 8525 static const struct file_operations megasas_mgmt_fops = { 8526 .owner = THIS_MODULE, 8527 .open = megasas_mgmt_open, 8528 .fasync = megasas_mgmt_fasync, 8529 .unlocked_ioctl = megasas_mgmt_ioctl, 8530 .poll = megasas_mgmt_poll, 8531 #ifdef CONFIG_COMPAT 8532 .compat_ioctl = megasas_mgmt_compat_ioctl, 8533 #endif 8534 .llseek = noop_llseek, 8535 }; 8536 8537 /* 8538 * PCI hotplug support registration structure 8539 */ 8540 static struct pci_driver megasas_pci_driver = { 8541 8542 .name = "megaraid_sas", 8543 .id_table = megasas_pci_table, 8544 .probe = megasas_probe_one, 8545 .remove = megasas_detach_one, 8546 .suspend = megasas_suspend, 8547 .resume = megasas_resume, 8548 .shutdown = megasas_shutdown, 8549 }; 8550 8551 /* 8552 * Sysfs driver attributes 8553 */ 8554 static ssize_t version_show(struct device_driver *dd, char *buf) 8555 { 8556 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", 8557 MEGASAS_VERSION); 8558 } 8559 static DRIVER_ATTR_RO(version); 8560 8561 static ssize_t release_date_show(struct device_driver *dd, char *buf) 8562 { 8563 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", 8564 MEGASAS_RELDATE); 8565 } 8566 static DRIVER_ATTR_RO(release_date); 8567 8568 static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf) 8569 { 8570 return sprintf(buf, "%u\n", support_poll_for_event); 8571 } 8572 static DRIVER_ATTR_RO(support_poll_for_event); 8573 8574 static ssize_t support_device_change_show(struct device_driver *dd, char *buf) 8575 { 8576 return sprintf(buf, "%u\n", support_device_change); 8577 } 8578 static DRIVER_ATTR_RO(support_device_change); 8579 8580 static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf) 8581 { 8582 return sprintf(buf, "%u\n", megasas_dbg_lvl); 8583 } 8584 8585 static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf, 8586 size_t count) 8587 { 8588 int retval = count; 8589 8590 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { 8591 printk(KERN_ERR "megasas: could not set dbg_lvl\n"); 8592 retval = -EINVAL; 8593 } 8594 return retval; 8595 } 8596 static DRIVER_ATTR_RW(dbg_lvl); 8597 8598 static ssize_t 8599 support_nvme_encapsulation_show(struct device_driver *dd, char *buf) 8600 { 8601 return sprintf(buf, "%u\n", support_nvme_encapsulation); 8602 } 8603 8604 static DRIVER_ATTR_RO(support_nvme_encapsulation); 8605 8606 static ssize_t 8607 support_pci_lane_margining_show(struct device_driver *dd, char *buf) 8608 { 8609 return sprintf(buf, "%u\n", support_pci_lane_margining); 8610 } 8611 8612 static DRIVER_ATTR_RO(support_pci_lane_margining); 8613 8614 static inline void megasas_remove_scsi_device(struct scsi_device *sdev) 8615 { 8616 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n"); 8617 scsi_remove_device(sdev); 8618 scsi_device_put(sdev); 8619 } 8620 8621 /** 8622 * megasas_update_device_list - Update the PD and LD device list from FW 8623 * after an AEN event notification 8624 * @instance: Adapter soft state 8625 * @event_type: Indicates type of event (PD or LD event) 8626 * 8627 * @return: Success or failure 8628 * 8629 * Issue DCMDs to Firmware to update the internal device list in driver. 8630 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination 8631 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list. 8632 */ 8633 static 8634 int megasas_update_device_list(struct megasas_instance *instance, 8635 int event_type) 8636 { 8637 int dcmd_ret = DCMD_SUCCESS; 8638 8639 if (instance->enable_fw_dev_list) { 8640 dcmd_ret = megasas_host_device_list_query(instance, false); 8641 if (dcmd_ret != DCMD_SUCCESS) 8642 goto out; 8643 } else { 8644 if (event_type & SCAN_PD_CHANNEL) { 8645 dcmd_ret = megasas_get_pd_list(instance); 8646 8647 if (dcmd_ret != DCMD_SUCCESS) 8648 goto out; 8649 } 8650 8651 if (event_type & SCAN_VD_CHANNEL) { 8652 if (!instance->requestorId || 8653 (instance->requestorId && 8654 megasas_get_ld_vf_affiliation(instance, 0))) { 8655 dcmd_ret = megasas_ld_list_query(instance, 8656 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); 8657 if (dcmd_ret != DCMD_SUCCESS) 8658 goto out; 8659 } 8660 } 8661 } 8662 8663 out: 8664 return dcmd_ret; 8665 } 8666 8667 /** 8668 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer 8669 * after an AEN event notification 8670 * @instance: Adapter soft state 8671 * @scan_type: Indicates type of devices (PD/LD) to add 8672 * @return void 8673 */ 8674 static 8675 void megasas_add_remove_devices(struct megasas_instance *instance, 8676 int scan_type) 8677 { 8678 int i, j; 8679 u16 pd_index = 0; 8680 u16 ld_index = 0; 8681 u16 channel = 0, id = 0; 8682 struct Scsi_Host *host; 8683 struct scsi_device *sdev1; 8684 struct MR_HOST_DEVICE_LIST *targetid_list = NULL; 8685 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL; 8686 8687 host = instance->host; 8688 8689 if (instance->enable_fw_dev_list) { 8690 targetid_list = instance->host_device_list_buf; 8691 for (i = 0; i < targetid_list->count; i++) { 8692 targetid_entry = &targetid_list->host_device_list[i]; 8693 if (targetid_entry->flags.u.bits.is_sys_pd) { 8694 channel = le16_to_cpu(targetid_entry->target_id) / 8695 MEGASAS_MAX_DEV_PER_CHANNEL; 8696 id = le16_to_cpu(targetid_entry->target_id) % 8697 MEGASAS_MAX_DEV_PER_CHANNEL; 8698 } else { 8699 channel = MEGASAS_MAX_PD_CHANNELS + 8700 (le16_to_cpu(targetid_entry->target_id) / 8701 MEGASAS_MAX_DEV_PER_CHANNEL); 8702 id = le16_to_cpu(targetid_entry->target_id) % 8703 MEGASAS_MAX_DEV_PER_CHANNEL; 8704 } 8705 sdev1 = scsi_device_lookup(host, channel, id, 0); 8706 if (!sdev1) { 8707 scsi_add_device(host, channel, id, 0); 8708 } else { 8709 scsi_device_put(sdev1); 8710 } 8711 } 8712 } 8713 8714 if (scan_type & SCAN_PD_CHANNEL) { 8715 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { 8716 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8717 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j; 8718 sdev1 = scsi_device_lookup(host, i, j, 0); 8719 if (instance->pd_list[pd_index].driveState == 8720 MR_PD_STATE_SYSTEM) { 8721 if (!sdev1) 8722 scsi_add_device(host, i, j, 0); 8723 else 8724 scsi_device_put(sdev1); 8725 } else { 8726 if (sdev1) 8727 megasas_remove_scsi_device(sdev1); 8728 } 8729 } 8730 } 8731 } 8732 8733 if (scan_type & SCAN_VD_CHANNEL) { 8734 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { 8735 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { 8736 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; 8737 sdev1 = scsi_device_lookup(host, 8738 MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8739 if (instance->ld_ids[ld_index] != 0xff) { 8740 if (!sdev1) 8741 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); 8742 else 8743 scsi_device_put(sdev1); 8744 } else { 8745 if (sdev1) 8746 megasas_remove_scsi_device(sdev1); 8747 } 8748 } 8749 } 8750 } 8751 8752 } 8753 8754 static void 8755 megasas_aen_polling(struct work_struct *work) 8756 { 8757 struct megasas_aen_event *ev = 8758 container_of(work, struct megasas_aen_event, hotplug_work.work); 8759 struct megasas_instance *instance = ev->instance; 8760 union megasas_evt_class_locale class_locale; 8761 int event_type = 0; 8762 u32 seq_num; 8763 int error; 8764 u8 dcmd_ret = DCMD_SUCCESS; 8765 8766 if (!instance) { 8767 printk(KERN_ERR "invalid instance!\n"); 8768 kfree(ev); 8769 return; 8770 } 8771 8772 /* Don't run the event workqueue thread if OCR is running */ 8773 mutex_lock(&instance->reset_mutex); 8774 8775 instance->ev = NULL; 8776 if (instance->evt_detail) { 8777 megasas_decode_evt(instance); 8778 8779 switch (le32_to_cpu(instance->evt_detail->code)) { 8780 8781 case MR_EVT_PD_INSERTED: 8782 case MR_EVT_PD_REMOVED: 8783 event_type = SCAN_PD_CHANNEL; 8784 break; 8785 8786 case MR_EVT_LD_OFFLINE: 8787 case MR_EVT_CFG_CLEARED: 8788 case MR_EVT_LD_DELETED: 8789 case MR_EVT_LD_CREATED: 8790 event_type = SCAN_VD_CHANNEL; 8791 break; 8792 8793 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: 8794 case MR_EVT_FOREIGN_CFG_IMPORTED: 8795 case MR_EVT_LD_STATE_CHANGE: 8796 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL; 8797 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", 8798 instance->host->host_no); 8799 break; 8800 8801 case MR_EVT_CTRL_PROP_CHANGED: 8802 dcmd_ret = megasas_get_ctrl_info(instance); 8803 if (dcmd_ret == DCMD_SUCCESS && 8804 instance->snapdump_wait_time) { 8805 megasas_get_snapdump_properties(instance); 8806 dev_info(&instance->pdev->dev, 8807 "Snap dump wait time\t: %d\n", 8808 instance->snapdump_wait_time); 8809 } 8810 break; 8811 default: 8812 event_type = 0; 8813 break; 8814 } 8815 } else { 8816 dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); 8817 mutex_unlock(&instance->reset_mutex); 8818 kfree(ev); 8819 return; 8820 } 8821 8822 if (event_type) 8823 dcmd_ret = megasas_update_device_list(instance, event_type); 8824 8825 mutex_unlock(&instance->reset_mutex); 8826 8827 if (event_type && dcmd_ret == DCMD_SUCCESS) 8828 megasas_add_remove_devices(instance, event_type); 8829 8830 if (dcmd_ret == DCMD_SUCCESS) 8831 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; 8832 else 8833 seq_num = instance->last_seq_num; 8834 8835 /* Register AEN with FW for latest sequence number plus 1 */ 8836 class_locale.members.reserved = 0; 8837 class_locale.members.locale = MR_EVT_LOCALE_ALL; 8838 class_locale.members.class = MR_EVT_CLASS_DEBUG; 8839 8840 if (instance->aen_cmd != NULL) { 8841 kfree(ev); 8842 return; 8843 } 8844 8845 mutex_lock(&instance->reset_mutex); 8846 error = megasas_register_aen(instance, seq_num, 8847 class_locale.word); 8848 if (error) 8849 dev_err(&instance->pdev->dev, 8850 "register aen failed error %x\n", error); 8851 8852 mutex_unlock(&instance->reset_mutex); 8853 kfree(ev); 8854 } 8855 8856 /** 8857 * megasas_init - Driver load entry point 8858 */ 8859 static int __init megasas_init(void) 8860 { 8861 int rval; 8862 8863 /* 8864 * Booted in kdump kernel, minimize memory footprints by 8865 * disabling few features 8866 */ 8867 if (reset_devices) { 8868 msix_vectors = 1; 8869 rdpq_enable = 0; 8870 dual_qdepth_disable = 1; 8871 } 8872 8873 /* 8874 * Announce driver version and other information 8875 */ 8876 pr_info("megasas: %s\n", MEGASAS_VERSION); 8877 8878 spin_lock_init(&poll_aen_lock); 8879 8880 support_poll_for_event = 2; 8881 support_device_change = 1; 8882 support_nvme_encapsulation = true; 8883 support_pci_lane_margining = true; 8884 8885 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); 8886 8887 /* 8888 * Register character device node 8889 */ 8890 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); 8891 8892 if (rval < 0) { 8893 printk(KERN_DEBUG "megasas: failed to open device node\n"); 8894 return rval; 8895 } 8896 8897 megasas_mgmt_majorno = rval; 8898 8899 megasas_init_debugfs(); 8900 8901 /* 8902 * Register ourselves as PCI hotplug module 8903 */ 8904 rval = pci_register_driver(&megasas_pci_driver); 8905 8906 if (rval) { 8907 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); 8908 goto err_pcidrv; 8909 } 8910 8911 if ((event_log_level < MFI_EVT_CLASS_DEBUG) || 8912 (event_log_level > MFI_EVT_CLASS_DEAD)) { 8913 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"); 8914 event_log_level = MFI_EVT_CLASS_CRITICAL; 8915 } 8916 8917 rval = driver_create_file(&megasas_pci_driver.driver, 8918 &driver_attr_version); 8919 if (rval) 8920 goto err_dcf_attr_ver; 8921 8922 rval = driver_create_file(&megasas_pci_driver.driver, 8923 &driver_attr_release_date); 8924 if (rval) 8925 goto err_dcf_rel_date; 8926 8927 rval = driver_create_file(&megasas_pci_driver.driver, 8928 &driver_attr_support_poll_for_event); 8929 if (rval) 8930 goto err_dcf_support_poll_for_event; 8931 8932 rval = driver_create_file(&megasas_pci_driver.driver, 8933 &driver_attr_dbg_lvl); 8934 if (rval) 8935 goto err_dcf_dbg_lvl; 8936 rval = driver_create_file(&megasas_pci_driver.driver, 8937 &driver_attr_support_device_change); 8938 if (rval) 8939 goto err_dcf_support_device_change; 8940 8941 rval = driver_create_file(&megasas_pci_driver.driver, 8942 &driver_attr_support_nvme_encapsulation); 8943 if (rval) 8944 goto err_dcf_support_nvme_encapsulation; 8945 8946 rval = driver_create_file(&megasas_pci_driver.driver, 8947 &driver_attr_support_pci_lane_margining); 8948 if (rval) 8949 goto err_dcf_support_pci_lane_margining; 8950 8951 return rval; 8952 8953 err_dcf_support_pci_lane_margining: 8954 driver_remove_file(&megasas_pci_driver.driver, 8955 &driver_attr_support_nvme_encapsulation); 8956 8957 err_dcf_support_nvme_encapsulation: 8958 driver_remove_file(&megasas_pci_driver.driver, 8959 &driver_attr_support_device_change); 8960 8961 err_dcf_support_device_change: 8962 driver_remove_file(&megasas_pci_driver.driver, 8963 &driver_attr_dbg_lvl); 8964 err_dcf_dbg_lvl: 8965 driver_remove_file(&megasas_pci_driver.driver, 8966 &driver_attr_support_poll_for_event); 8967 err_dcf_support_poll_for_event: 8968 driver_remove_file(&megasas_pci_driver.driver, 8969 &driver_attr_release_date); 8970 err_dcf_rel_date: 8971 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8972 err_dcf_attr_ver: 8973 pci_unregister_driver(&megasas_pci_driver); 8974 err_pcidrv: 8975 megasas_exit_debugfs(); 8976 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 8977 return rval; 8978 } 8979 8980 /** 8981 * megasas_exit - Driver unload entry point 8982 */ 8983 static void __exit megasas_exit(void) 8984 { 8985 driver_remove_file(&megasas_pci_driver.driver, 8986 &driver_attr_dbg_lvl); 8987 driver_remove_file(&megasas_pci_driver.driver, 8988 &driver_attr_support_poll_for_event); 8989 driver_remove_file(&megasas_pci_driver.driver, 8990 &driver_attr_support_device_change); 8991 driver_remove_file(&megasas_pci_driver.driver, 8992 &driver_attr_release_date); 8993 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); 8994 driver_remove_file(&megasas_pci_driver.driver, 8995 &driver_attr_support_nvme_encapsulation); 8996 driver_remove_file(&megasas_pci_driver.driver, 8997 &driver_attr_support_pci_lane_margining); 8998 8999 pci_unregister_driver(&megasas_pci_driver); 9000 megasas_exit_debugfs(); 9001 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); 9002 } 9003 9004 module_init(megasas_init); 9005 module_exit(megasas_exit); 9006