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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Linux MegaRAID driver for SAS based RAID controllers4 *5 * Copyright (c) 2003-2013 LSI Corporation6 * Copyright (c) 2013-2016 Avago Technologies7 * Copyright (c) 2016-2018 Broadcom Inc.8 *9 * Authors: Broadcom Inc.10 * Sreenivas Bagalkote11 * Sumant Patro12 * Bo Yang13 * Adam Radford14 * Kashyap Desai <kashyap.desai@broadcom.com>15 * Sumit Saxena <sumit.saxena@broadcom.com>16 *17 * Send feedback to: megaraidlinux.pdl@broadcom.com18 */19 20#include <linux/kernel.h>21#include <linux/types.h>22#include <linux/pci.h>23#include <linux/list.h>24#include <linux/moduleparam.h>25#include <linux/module.h>26#include <linux/spinlock.h>27#include <linux/interrupt.h>28#include <linux/delay.h>29#include <linux/uio.h>30#include <linux/slab.h>31#include <linux/uaccess.h>32#include <linux/unaligned.h>33#include <linux/fs.h>34#include <linux/compat.h>35#include <linux/blkdev.h>36#include <linux/mutex.h>37#include <linux/poll.h>38#include <linux/vmalloc.h>39#include <linux/irq_poll.h>40#include <linux/blk-mq-pci.h>41 42#include <scsi/scsi.h>43#include <scsi/scsi_cmnd.h>44#include <scsi/scsi_device.h>45#include <scsi/scsi_host.h>46#include <scsi/scsi_tcq.h>47#include <scsi/scsi_dbg.h>48#include "megaraid_sas_fusion.h"49#include "megaraid_sas.h"50 51/*52 * Number of sectors per IO command53 * Will be set in megasas_init_mfi if user does not provide54 */55static unsigned int max_sectors;56module_param_named(max_sectors, max_sectors, int, 0444);57MODULE_PARM_DESC(max_sectors,58 "Maximum number of sectors per IO command");59 60static int msix_disable;61module_param(msix_disable, int, 0444);62MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");63 64static unsigned int msix_vectors;65module_param(msix_vectors, int, 0444);66MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW");67 68static int allow_vf_ioctls;69module_param(allow_vf_ioctls, int, 0444);70MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0");71 72static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;73module_param(throttlequeuedepth, int, 0444);74MODULE_PARM_DESC(throttlequeuedepth,75 "Adapter queue depth when throttled due to I/O timeout. Default: 16");76 77unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME;78module_param(resetwaittime, int, 0444);79MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s");80 81static int smp_affinity_enable = 1;82module_param(smp_affinity_enable, int, 0444);83MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)");84 85static int rdpq_enable = 1;86module_param(rdpq_enable, int, 0444);87MODULE_PARM_DESC(rdpq_enable, "Allocate reply queue in chunks for large queue depth enable/disable Default: enable(1)");88 89unsigned int dual_qdepth_disable;90module_param(dual_qdepth_disable, int, 0444);91MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0");92 93static unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;94module_param(scmd_timeout, int, 0444);95MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer.");96 97int perf_mode = -1;98module_param(perf_mode, int, 0444);99MODULE_PARM_DESC(perf_mode, "Performance mode (only for Aero adapters), options:\n\t\t"100 "0 - balanced: High iops and low latency queues are allocated &\n\t\t"101 "interrupt coalescing is enabled only on high iops queues\n\t\t"102 "1 - iops: High iops queues are not allocated &\n\t\t"103 "interrupt coalescing is enabled on all queues\n\t\t"104 "2 - latency: High iops queues are not allocated &\n\t\t"105 "interrupt coalescing is disabled on all queues\n\t\t"106 "default mode is 'balanced'"107 );108 109int event_log_level = MFI_EVT_CLASS_CRITICAL;110module_param(event_log_level, int, 0644);111MODULE_PARM_DESC(event_log_level, "Asynchronous event logging level- range is: -2(CLASS_DEBUG) to 4(CLASS_DEAD), Default: 2(CLASS_CRITICAL)");112 113unsigned int enable_sdev_max_qd;114module_param(enable_sdev_max_qd, int, 0444);115MODULE_PARM_DESC(enable_sdev_max_qd, "Enable sdev max qd as can_queue. Default: 0");116 117int poll_queues;118module_param(poll_queues, int, 0444);119MODULE_PARM_DESC(poll_queues, "Number of queues to be use for io_uring poll mode.\n\t\t"120 "This parameter is effective only if host_tagset_enable=1 &\n\t\t"121 "It is not applicable for MFI_SERIES. &\n\t\t"122 "Driver will work in latency mode. &\n\t\t"123 "High iops queues are not allocated &\n\t\t"124 );125 126int host_tagset_enable = 1;127module_param(host_tagset_enable, int, 0444);128MODULE_PARM_DESC(host_tagset_enable, "Shared host tagset enable/disable Default: enable(1)");129 130MODULE_LICENSE("GPL");131MODULE_VERSION(MEGASAS_VERSION);132MODULE_AUTHOR("megaraidlinux.pdl@broadcom.com");133MODULE_DESCRIPTION("Broadcom MegaRAID SAS Driver");134 135int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);136static int megasas_get_pd_list(struct megasas_instance *instance);137static int megasas_ld_list_query(struct megasas_instance *instance,138 u8 query_type);139static int megasas_issue_init_mfi(struct megasas_instance *instance);140static int megasas_register_aen(struct megasas_instance *instance,141 u32 seq_num, u32 class_locale_word);142static void megasas_get_pd_info(struct megasas_instance *instance,143 struct scsi_device *sdev);144static void145megasas_set_ld_removed_by_fw(struct megasas_instance *instance);146 147/*148 * PCI ID table for all supported controllers149 */150static struct pci_device_id megasas_pci_table[] = {151 152 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},153 /* xscale IOP */154 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},155 /* ppc IOP */156 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)},157 /* ppc IOP */158 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},159 /* gen2*/160 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},161 /* gen2*/162 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},163 /* skinny*/164 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},165 /* skinny*/166 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},167 /* xscale IOP, vega */168 {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},169 /* xscale IOP */170 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},171 /* Fusion */172 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},173 /* Plasma */174 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)},175 /* Invader */176 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)},177 /* Fury */178 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)},179 /* Intruder */180 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)},181 /* Intruder 24 port*/182 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)},183 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)},184 /* VENTURA */185 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA)},186 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER)},187 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_HARPOON)},188 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_TOMCAT)},189 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VENTURA_4PORT)},190 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CRUSADER_4PORT)},191 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E1)},192 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E2)},193 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E5)},194 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E6)},195 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E0)},196 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E3)},197 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E4)},198 {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_AERO_10E7)},199 {}200};201 202MODULE_DEVICE_TABLE(pci, megasas_pci_table);203 204static int megasas_mgmt_majorno;205struct megasas_mgmt_info megasas_mgmt_info;206static struct fasync_struct *megasas_async_queue;207static DEFINE_MUTEX(megasas_async_queue_mutex);208 209static int megasas_poll_wait_aen;210static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);211static u32 support_poll_for_event;212u32 megasas_dbg_lvl;213static u32 support_device_change;214static bool support_nvme_encapsulation;215static bool support_pci_lane_margining;216 217/* define lock for aen poll */218static DEFINE_SPINLOCK(poll_aen_lock);219 220extern struct dentry *megasas_debugfs_root;221extern int megasas_blk_mq_poll(struct Scsi_Host *shost, unsigned int queue_num);222 223void224megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,225 u8 alt_status);226static u32227megasas_read_fw_status_reg_gen2(struct megasas_instance *instance);228static int229megasas_adp_reset_gen2(struct megasas_instance *instance,230 struct megasas_register_set __iomem *reg_set);231static irqreturn_t megasas_isr(int irq, void *devp);232static u32233megasas_init_adapter_mfi(struct megasas_instance *instance);234u32235megasas_build_and_issue_cmd(struct megasas_instance *instance,236 struct scsi_cmnd *scmd);237static void megasas_complete_cmd_dpc(unsigned long instance_addr);238int239wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,240 int seconds);241void megasas_fusion_ocr_wq(struct work_struct *work);242static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,243 int initial);244static int245megasas_set_dma_mask(struct megasas_instance *instance);246static int247megasas_alloc_ctrl_mem(struct megasas_instance *instance);248static inline void249megasas_free_ctrl_mem(struct megasas_instance *instance);250static inline int251megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance);252static inline void253megasas_free_ctrl_dma_buffers(struct megasas_instance *instance);254static inline void255megasas_init_ctrl_params(struct megasas_instance *instance);256 257u32 megasas_readl(struct megasas_instance *instance,258 const volatile void __iomem *addr)259{260 u32 i = 0, ret_val;261 /*262 * Due to a HW errata in Aero controllers, reads to certain263 * Fusion registers could intermittently return all zeroes.264 * This behavior is transient in nature and subsequent reads will265 * return valid value. As a workaround in driver, retry readl for266 * up to thirty times until a non-zero value is read.267 */268 if (instance->adapter_type == AERO_SERIES) {269 do {270 ret_val = readl(addr);271 i++;272 } while (ret_val == 0 && i < 30);273 return ret_val;274 } else {275 return readl(addr);276 }277}278 279/**280 * megasas_set_dma_settings - Populate DMA address, length and flags for DCMDs281 * @instance: Adapter soft state282 * @dcmd: DCMD frame inside MFI command283 * @dma_addr: DMA address of buffer to be passed to FW284 * @dma_len: Length of DMA buffer to be passed to FW285 * @return: void286 */287void megasas_set_dma_settings(struct megasas_instance *instance,288 struct megasas_dcmd_frame *dcmd,289 dma_addr_t dma_addr, u32 dma_len)290{291 if (instance->consistent_mask_64bit) {292 dcmd->sgl.sge64[0].phys_addr = cpu_to_le64(dma_addr);293 dcmd->sgl.sge64[0].length = cpu_to_le32(dma_len);294 dcmd->flags = cpu_to_le16(dcmd->flags | MFI_FRAME_SGL64);295 296 } else {297 dcmd->sgl.sge32[0].phys_addr =298 cpu_to_le32(lower_32_bits(dma_addr));299 dcmd->sgl.sge32[0].length = cpu_to_le32(dma_len);300 dcmd->flags = cpu_to_le16(dcmd->flags);301 }302}303 304static void305megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)306{307 instance->instancet->fire_cmd(instance,308 cmd->frame_phys_addr, 0, instance->reg_set);309 return;310}311 312/**313 * megasas_get_cmd - Get a command from the free pool314 * @instance: Adapter soft state315 *316 * Returns a free command from the pool317 */318struct megasas_cmd *megasas_get_cmd(struct megasas_instance319 *instance)320{321 unsigned long flags;322 struct megasas_cmd *cmd = NULL;323 324 spin_lock_irqsave(&instance->mfi_pool_lock, flags);325 326 if (!list_empty(&instance->cmd_pool)) {327 cmd = list_entry((&instance->cmd_pool)->next,328 struct megasas_cmd, list);329 list_del_init(&cmd->list);330 } else {331 dev_err(&instance->pdev->dev, "Command pool empty!\n");332 }333 334 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);335 return cmd;336}337 338/**339 * megasas_return_cmd - Return a cmd to free command pool340 * @instance: Adapter soft state341 * @cmd: Command packet to be returned to free command pool342 */343void344megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)345{346 unsigned long flags;347 u32 blk_tags;348 struct megasas_cmd_fusion *cmd_fusion;349 struct fusion_context *fusion = instance->ctrl_context;350 351 /* This flag is used only for fusion adapter.352 * Wait for Interrupt for Polled mode DCMD353 */354 if (cmd->flags & DRV_DCMD_POLLED_MODE)355 return;356 357 spin_lock_irqsave(&instance->mfi_pool_lock, flags);358 359 if (fusion) {360 blk_tags = instance->max_scsi_cmds + cmd->index;361 cmd_fusion = fusion->cmd_list[blk_tags];362 megasas_return_cmd_fusion(instance, cmd_fusion);363 }364 cmd->scmd = NULL;365 cmd->frame_count = 0;366 cmd->flags = 0;367 memset(cmd->frame, 0, instance->mfi_frame_size);368 cmd->frame->io.context = cpu_to_le32(cmd->index);369 if (!fusion && reset_devices)370 cmd->frame->hdr.cmd = MFI_CMD_INVALID;371 list_add(&cmd->list, (&instance->cmd_pool)->next);372 373 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);374 375}376 377static const char *378format_timestamp(uint32_t timestamp)379{380 static char buffer[32];381 382 if ((timestamp & 0xff000000) == 0xff000000)383 snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &384 0x00ffffff);385 else386 snprintf(buffer, sizeof(buffer), "%us", timestamp);387 return buffer;388}389 390static const char *391format_class(int8_t class)392{393 static char buffer[6];394 395 switch (class) {396 case MFI_EVT_CLASS_DEBUG:397 return "debug";398 case MFI_EVT_CLASS_PROGRESS:399 return "progress";400 case MFI_EVT_CLASS_INFO:401 return "info";402 case MFI_EVT_CLASS_WARNING:403 return "WARN";404 case MFI_EVT_CLASS_CRITICAL:405 return "CRIT";406 case MFI_EVT_CLASS_FATAL:407 return "FATAL";408 case MFI_EVT_CLASS_DEAD:409 return "DEAD";410 default:411 snprintf(buffer, sizeof(buffer), "%d", class);412 return buffer;413 }414}415 416/**417 * megasas_decode_evt: Decode FW AEN event and print critical event418 * for information.419 * @instance: Adapter soft state420 */421static void422megasas_decode_evt(struct megasas_instance *instance)423{424 struct megasas_evt_detail *evt_detail = instance->evt_detail;425 union megasas_evt_class_locale class_locale;426 class_locale.word = le32_to_cpu(evt_detail->cl.word);427 428 if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||429 (event_log_level > MFI_EVT_CLASS_DEAD)) {430 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");431 event_log_level = MFI_EVT_CLASS_CRITICAL;432 }433 434 if (class_locale.members.class >= event_log_level)435 dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",436 le32_to_cpu(evt_detail->seq_num),437 format_timestamp(le32_to_cpu(evt_detail->time_stamp)),438 (class_locale.members.locale),439 format_class(class_locale.members.class),440 evt_detail->description);441 442 if (megasas_dbg_lvl & LD_PD_DEBUG)443 dev_info(&instance->pdev->dev,444 "evt_detail.args.ld.target_id/index %d/%d\n",445 evt_detail->args.ld.target_id, evt_detail->args.ld.ld_index);446 447}448 449/*450 * The following functions are defined for xscale451 * (deviceid : 1064R, PERC5) controllers452 */453 454/**455 * megasas_enable_intr_xscale - Enables interrupts456 * @instance: Adapter soft state457 */458static inline void459megasas_enable_intr_xscale(struct megasas_instance *instance)460{461 struct megasas_register_set __iomem *regs;462 463 regs = instance->reg_set;464 writel(0, &(regs)->outbound_intr_mask);465 466 /* Dummy readl to force pci flush */467 readl(®s->outbound_intr_mask);468}469 470/**471 * megasas_disable_intr_xscale -Disables interrupt472 * @instance: Adapter soft state473 */474static inline void475megasas_disable_intr_xscale(struct megasas_instance *instance)476{477 struct megasas_register_set __iomem *regs;478 u32 mask = 0x1f;479 480 regs = instance->reg_set;481 writel(mask, ®s->outbound_intr_mask);482 /* Dummy readl to force pci flush */483 readl(®s->outbound_intr_mask);484}485 486/**487 * megasas_read_fw_status_reg_xscale - returns the current FW status value488 * @instance: Adapter soft state489 */490static u32491megasas_read_fw_status_reg_xscale(struct megasas_instance *instance)492{493 return readl(&instance->reg_set->outbound_msg_0);494}495/**496 * megasas_clear_intr_xscale - Check & clear interrupt497 * @instance: Adapter soft state498 */499static int500megasas_clear_intr_xscale(struct megasas_instance *instance)501{502 u32 status;503 u32 mfiStatus = 0;504 struct megasas_register_set __iomem *regs;505 regs = instance->reg_set;506 507 /*508 * Check if it is our interrupt509 */510 status = readl(®s->outbound_intr_status);511 512 if (status & MFI_OB_INTR_STATUS_MASK)513 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;514 if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT)515 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;516 517 /*518 * Clear the interrupt by writing back the same value519 */520 if (mfiStatus)521 writel(status, ®s->outbound_intr_status);522 523 /* Dummy readl to force pci flush */524 readl(®s->outbound_intr_status);525 526 return mfiStatus;527}528 529/**530 * megasas_fire_cmd_xscale - Sends command to the FW531 * @instance: Adapter soft state532 * @frame_phys_addr : Physical address of cmd533 * @frame_count : Number of frames for the command534 * @regs : MFI register set535 */536static inline void537megasas_fire_cmd_xscale(struct megasas_instance *instance,538 dma_addr_t frame_phys_addr,539 u32 frame_count,540 struct megasas_register_set __iomem *regs)541{542 unsigned long flags;543 544 spin_lock_irqsave(&instance->hba_lock, flags);545 writel((frame_phys_addr >> 3)|(frame_count),546 &(regs)->inbound_queue_port);547 spin_unlock_irqrestore(&instance->hba_lock, flags);548}549 550/**551 * megasas_adp_reset_xscale - For controller reset552 * @instance: Adapter soft state553 * @regs: MFI register set554 */555static int556megasas_adp_reset_xscale(struct megasas_instance *instance,557 struct megasas_register_set __iomem *regs)558{559 u32 i;560 u32 pcidata;561 562 writel(MFI_ADP_RESET, ®s->inbound_doorbell);563 564 for (i = 0; i < 3; i++)565 msleep(1000); /* sleep for 3 secs */566 pcidata = 0;567 pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata);568 dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata);569 if (pcidata & 0x2) {570 dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata);571 pcidata &= ~0x2;572 pci_write_config_dword(instance->pdev,573 MFI_1068_PCSR_OFFSET, pcidata);574 575 for (i = 0; i < 2; i++)576 msleep(1000); /* need to wait 2 secs again */577 578 pcidata = 0;579 pci_read_config_dword(instance->pdev,580 MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata);581 dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata);582 if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) {583 dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata);584 pcidata = 0;585 pci_write_config_dword(instance->pdev,586 MFI_1068_FW_HANDSHAKE_OFFSET, pcidata);587 }588 }589 return 0;590}591 592/**593 * megasas_check_reset_xscale - For controller reset check594 * @instance: Adapter soft state595 * @regs: MFI register set596 */597static int598megasas_check_reset_xscale(struct megasas_instance *instance,599 struct megasas_register_set __iomem *regs)600{601 if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) &&602 (le32_to_cpu(*instance->consumer) ==603 MEGASAS_ADPRESET_INPROG_SIGN))604 return 1;605 return 0;606}607 608static struct megasas_instance_template megasas_instance_template_xscale = {609 610 .fire_cmd = megasas_fire_cmd_xscale,611 .enable_intr = megasas_enable_intr_xscale,612 .disable_intr = megasas_disable_intr_xscale,613 .clear_intr = megasas_clear_intr_xscale,614 .read_fw_status_reg = megasas_read_fw_status_reg_xscale,615 .adp_reset = megasas_adp_reset_xscale,616 .check_reset = megasas_check_reset_xscale,617 .service_isr = megasas_isr,618 .tasklet = megasas_complete_cmd_dpc,619 .init_adapter = megasas_init_adapter_mfi,620 .build_and_issue_cmd = megasas_build_and_issue_cmd,621 .issue_dcmd = megasas_issue_dcmd,622};623 624/*625 * This is the end of set of functions & definitions specific626 * to xscale (deviceid : 1064R, PERC5) controllers627 */628 629/*630 * The following functions are defined for ppc (deviceid : 0x60)631 * controllers632 */633 634/**635 * megasas_enable_intr_ppc - Enables interrupts636 * @instance: Adapter soft state637 */638static inline void639megasas_enable_intr_ppc(struct megasas_instance *instance)640{641 struct megasas_register_set __iomem *regs;642 643 regs = instance->reg_set;644 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);645 646 writel(~0x80000000, &(regs)->outbound_intr_mask);647 648 /* Dummy readl to force pci flush */649 readl(®s->outbound_intr_mask);650}651 652/**653 * megasas_disable_intr_ppc - Disable interrupt654 * @instance: Adapter soft state655 */656static inline void657megasas_disable_intr_ppc(struct megasas_instance *instance)658{659 struct megasas_register_set __iomem *regs;660 u32 mask = 0xFFFFFFFF;661 662 regs = instance->reg_set;663 writel(mask, ®s->outbound_intr_mask);664 /* Dummy readl to force pci flush */665 readl(®s->outbound_intr_mask);666}667 668/**669 * megasas_read_fw_status_reg_ppc - returns the current FW status value670 * @instance: Adapter soft state671 */672static u32673megasas_read_fw_status_reg_ppc(struct megasas_instance *instance)674{675 return readl(&instance->reg_set->outbound_scratch_pad_0);676}677 678/**679 * megasas_clear_intr_ppc - Check & clear interrupt680 * @instance: Adapter soft state681 */682static int683megasas_clear_intr_ppc(struct megasas_instance *instance)684{685 u32 status, mfiStatus = 0;686 struct megasas_register_set __iomem *regs;687 regs = instance->reg_set;688 689 /*690 * Check if it is our interrupt691 */692 status = readl(®s->outbound_intr_status);693 694 if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT)695 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;696 697 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT)698 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;699 700 /*701 * Clear the interrupt by writing back the same value702 */703 writel(status, ®s->outbound_doorbell_clear);704 705 /* Dummy readl to force pci flush */706 readl(®s->outbound_doorbell_clear);707 708 return mfiStatus;709}710 711/**712 * megasas_fire_cmd_ppc - Sends command to the FW713 * @instance: Adapter soft state714 * @frame_phys_addr: Physical address of cmd715 * @frame_count: Number of frames for the command716 * @regs: MFI register set717 */718static inline void719megasas_fire_cmd_ppc(struct megasas_instance *instance,720 dma_addr_t frame_phys_addr,721 u32 frame_count,722 struct megasas_register_set __iomem *regs)723{724 unsigned long flags;725 726 spin_lock_irqsave(&instance->hba_lock, flags);727 writel((frame_phys_addr | (frame_count<<1))|1,728 &(regs)->inbound_queue_port);729 spin_unlock_irqrestore(&instance->hba_lock, flags);730}731 732/**733 * megasas_check_reset_ppc - For controller reset check734 * @instance: Adapter soft state735 * @regs: MFI register set736 */737static int738megasas_check_reset_ppc(struct megasas_instance *instance,739 struct megasas_register_set __iomem *regs)740{741 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)742 return 1;743 744 return 0;745}746 747static struct megasas_instance_template megasas_instance_template_ppc = {748 749 .fire_cmd = megasas_fire_cmd_ppc,750 .enable_intr = megasas_enable_intr_ppc,751 .disable_intr = megasas_disable_intr_ppc,752 .clear_intr = megasas_clear_intr_ppc,753 .read_fw_status_reg = megasas_read_fw_status_reg_ppc,754 .adp_reset = megasas_adp_reset_xscale,755 .check_reset = megasas_check_reset_ppc,756 .service_isr = megasas_isr,757 .tasklet = megasas_complete_cmd_dpc,758 .init_adapter = megasas_init_adapter_mfi,759 .build_and_issue_cmd = megasas_build_and_issue_cmd,760 .issue_dcmd = megasas_issue_dcmd,761};762 763/**764 * megasas_enable_intr_skinny - Enables interrupts765 * @instance: Adapter soft state766 */767static inline void768megasas_enable_intr_skinny(struct megasas_instance *instance)769{770 struct megasas_register_set __iomem *regs;771 772 regs = instance->reg_set;773 writel(0xFFFFFFFF, &(regs)->outbound_intr_mask);774 775 writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);776 777 /* Dummy readl to force pci flush */778 readl(®s->outbound_intr_mask);779}780 781/**782 * megasas_disable_intr_skinny - Disables interrupt783 * @instance: Adapter soft state784 */785static inline void786megasas_disable_intr_skinny(struct megasas_instance *instance)787{788 struct megasas_register_set __iomem *regs;789 u32 mask = 0xFFFFFFFF;790 791 regs = instance->reg_set;792 writel(mask, ®s->outbound_intr_mask);793 /* Dummy readl to force pci flush */794 readl(®s->outbound_intr_mask);795}796 797/**798 * megasas_read_fw_status_reg_skinny - returns the current FW status value799 * @instance: Adapter soft state800 */801static u32802megasas_read_fw_status_reg_skinny(struct megasas_instance *instance)803{804 return readl(&instance->reg_set->outbound_scratch_pad_0);805}806 807/**808 * megasas_clear_intr_skinny - Check & clear interrupt809 * @instance: Adapter soft state810 */811static int812megasas_clear_intr_skinny(struct megasas_instance *instance)813{814 u32 status;815 u32 mfiStatus = 0;816 struct megasas_register_set __iomem *regs;817 regs = instance->reg_set;818 819 /*820 * Check if it is our interrupt821 */822 status = readl(®s->outbound_intr_status);823 824 if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) {825 return 0;826 }827 828 /*829 * Check if it is our interrupt830 */831 if ((megasas_read_fw_status_reg_skinny(instance) & MFI_STATE_MASK) ==832 MFI_STATE_FAULT) {833 mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;834 } else835 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;836 837 /*838 * Clear the interrupt by writing back the same value839 */840 writel(status, ®s->outbound_intr_status);841 842 /*843 * dummy read to flush PCI844 */845 readl(®s->outbound_intr_status);846 847 return mfiStatus;848}849 850/**851 * megasas_fire_cmd_skinny - Sends command to the FW852 * @instance: Adapter soft state853 * @frame_phys_addr: Physical address of cmd854 * @frame_count: Number of frames for the command855 * @regs: MFI register set856 */857static inline void858megasas_fire_cmd_skinny(struct megasas_instance *instance,859 dma_addr_t frame_phys_addr,860 u32 frame_count,861 struct megasas_register_set __iomem *regs)862{863 unsigned long flags;864 865 spin_lock_irqsave(&instance->hba_lock, flags);866 writel(upper_32_bits(frame_phys_addr),867 &(regs)->inbound_high_queue_port);868 writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1,869 &(regs)->inbound_low_queue_port);870 spin_unlock_irqrestore(&instance->hba_lock, flags);871}872 873/**874 * megasas_check_reset_skinny - For controller reset check875 * @instance: Adapter soft state876 * @regs: MFI register set877 */878static int879megasas_check_reset_skinny(struct megasas_instance *instance,880 struct megasas_register_set __iomem *regs)881{882 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)883 return 1;884 885 return 0;886}887 888static struct megasas_instance_template megasas_instance_template_skinny = {889 890 .fire_cmd = megasas_fire_cmd_skinny,891 .enable_intr = megasas_enable_intr_skinny,892 .disable_intr = megasas_disable_intr_skinny,893 .clear_intr = megasas_clear_intr_skinny,894 .read_fw_status_reg = megasas_read_fw_status_reg_skinny,895 .adp_reset = megasas_adp_reset_gen2,896 .check_reset = megasas_check_reset_skinny,897 .service_isr = megasas_isr,898 .tasklet = megasas_complete_cmd_dpc,899 .init_adapter = megasas_init_adapter_mfi,900 .build_and_issue_cmd = megasas_build_and_issue_cmd,901 .issue_dcmd = megasas_issue_dcmd,902};903 904 905/*906 * The following functions are defined for gen2 (deviceid : 0x78 0x79)907 * controllers908 */909 910/**911 * megasas_enable_intr_gen2 - Enables interrupts912 * @instance: Adapter soft state913 */914static inline void915megasas_enable_intr_gen2(struct megasas_instance *instance)916{917 struct megasas_register_set __iomem *regs;918 919 regs = instance->reg_set;920 writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear);921 922 /* write ~0x00000005 (4 & 1) to the intr mask*/923 writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask);924 925 /* Dummy readl to force pci flush */926 readl(®s->outbound_intr_mask);927}928 929/**930 * megasas_disable_intr_gen2 - Disables interrupt931 * @instance: Adapter soft state932 */933static inline void934megasas_disable_intr_gen2(struct megasas_instance *instance)935{936 struct megasas_register_set __iomem *regs;937 u32 mask = 0xFFFFFFFF;938 939 regs = instance->reg_set;940 writel(mask, ®s->outbound_intr_mask);941 /* Dummy readl to force pci flush */942 readl(®s->outbound_intr_mask);943}944 945/**946 * megasas_read_fw_status_reg_gen2 - returns the current FW status value947 * @instance: Adapter soft state948 */949static u32950megasas_read_fw_status_reg_gen2(struct megasas_instance *instance)951{952 return readl(&instance->reg_set->outbound_scratch_pad_0);953}954 955/**956 * megasas_clear_intr_gen2 - Check & clear interrupt957 * @instance: Adapter soft state958 */959static int960megasas_clear_intr_gen2(struct megasas_instance *instance)961{962 u32 status;963 u32 mfiStatus = 0;964 struct megasas_register_set __iomem *regs;965 regs = instance->reg_set;966 967 /*968 * Check if it is our interrupt969 */970 status = readl(®s->outbound_intr_status);971 972 if (status & MFI_INTR_FLAG_REPLY_MESSAGE) {973 mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE;974 }975 if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) {976 mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE;977 }978 979 /*980 * Clear the interrupt by writing back the same value981 */982 if (mfiStatus)983 writel(status, ®s->outbound_doorbell_clear);984 985 /* Dummy readl to force pci flush */986 readl(®s->outbound_intr_status);987 988 return mfiStatus;989}990 991/**992 * megasas_fire_cmd_gen2 - Sends command to the FW993 * @instance: Adapter soft state994 * @frame_phys_addr: Physical address of cmd995 * @frame_count: Number of frames for the command996 * @regs: MFI register set997 */998static inline void999megasas_fire_cmd_gen2(struct megasas_instance *instance,1000 dma_addr_t frame_phys_addr,1001 u32 frame_count,1002 struct megasas_register_set __iomem *regs)1003{1004 unsigned long flags;1005 1006 spin_lock_irqsave(&instance->hba_lock, flags);1007 writel((frame_phys_addr | (frame_count<<1))|1,1008 &(regs)->inbound_queue_port);1009 spin_unlock_irqrestore(&instance->hba_lock, flags);1010}1011 1012/**1013 * megasas_adp_reset_gen2 - For controller reset1014 * @instance: Adapter soft state1015 * @reg_set: MFI register set1016 */1017static int1018megasas_adp_reset_gen2(struct megasas_instance *instance,1019 struct megasas_register_set __iomem *reg_set)1020{1021 u32 retry = 0 ;1022 u32 HostDiag;1023 u32 __iomem *seq_offset = ®_set->seq_offset;1024 u32 __iomem *hostdiag_offset = ®_set->host_diag;1025 1026 if (instance->instancet == &megasas_instance_template_skinny) {1027 seq_offset = ®_set->fusion_seq_offset;1028 hostdiag_offset = ®_set->fusion_host_diag;1029 }1030 1031 writel(0, seq_offset);1032 writel(4, seq_offset);1033 writel(0xb, seq_offset);1034 writel(2, seq_offset);1035 writel(7, seq_offset);1036 writel(0xd, seq_offset);1037 1038 msleep(1000);1039 1040 HostDiag = (u32)readl(hostdiag_offset);1041 1042 while (!(HostDiag & DIAG_WRITE_ENABLE)) {1043 msleep(100);1044 HostDiag = (u32)readl(hostdiag_offset);1045 dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n",1046 retry, HostDiag);1047 1048 if (retry++ >= 100)1049 return 1;1050 1051 }1052 1053 dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag);1054 1055 writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset);1056 1057 ssleep(10);1058 1059 HostDiag = (u32)readl(hostdiag_offset);1060 while (HostDiag & DIAG_RESET_ADAPTER) {1061 msleep(100);1062 HostDiag = (u32)readl(hostdiag_offset);1063 dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n",1064 retry, HostDiag);1065 1066 if (retry++ >= 1000)1067 return 1;1068 1069 }1070 return 0;1071}1072 1073/**1074 * megasas_check_reset_gen2 - For controller reset check1075 * @instance: Adapter soft state1076 * @regs: MFI register set1077 */1078static int1079megasas_check_reset_gen2(struct megasas_instance *instance,1080 struct megasas_register_set __iomem *regs)1081{1082 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)1083 return 1;1084 1085 return 0;1086}1087 1088static struct megasas_instance_template megasas_instance_template_gen2 = {1089 1090 .fire_cmd = megasas_fire_cmd_gen2,1091 .enable_intr = megasas_enable_intr_gen2,1092 .disable_intr = megasas_disable_intr_gen2,1093 .clear_intr = megasas_clear_intr_gen2,1094 .read_fw_status_reg = megasas_read_fw_status_reg_gen2,1095 .adp_reset = megasas_adp_reset_gen2,1096 .check_reset = megasas_check_reset_gen2,1097 .service_isr = megasas_isr,1098 .tasklet = megasas_complete_cmd_dpc,1099 .init_adapter = megasas_init_adapter_mfi,1100 .build_and_issue_cmd = megasas_build_and_issue_cmd,1101 .issue_dcmd = megasas_issue_dcmd,1102};1103 1104/*1105 * This is the end of set of functions & definitions1106 * specific to gen2 (deviceid : 0x78, 0x79) controllers1107 */1108 1109/*1110 * Template added for TB (Fusion)1111 */1112extern struct megasas_instance_template megasas_instance_template_fusion;1113 1114/**1115 * megasas_issue_polled - Issues a polling command1116 * @instance: Adapter soft state1117 * @cmd: Command packet to be issued1118 *1119 * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting.1120 */1121int1122megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd)1123{1124 struct megasas_header *frame_hdr = &cmd->frame->hdr;1125 1126 frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS;1127 frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);1128 1129 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {1130 dev_err(&instance->pdev->dev, "Failed from %s %d\n",1131 __func__, __LINE__);1132 return DCMD_INIT;1133 }1134 1135 instance->instancet->issue_dcmd(instance, cmd);1136 1137 return wait_and_poll(instance, cmd, instance->requestorId ?1138 MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS);1139}1140 1141/**1142 * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds1143 * @instance: Adapter soft state1144 * @cmd: Command to be issued1145 * @timeout: Timeout in seconds1146 *1147 * This function waits on an event for the command to be returned from ISR.1148 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs1149 * Used to issue ioctl commands.1150 */1151int1152megasas_issue_blocked_cmd(struct megasas_instance *instance,1153 struct megasas_cmd *cmd, int timeout)1154{1155 int ret = 0;1156 cmd->cmd_status_drv = DCMD_INIT;1157 1158 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {1159 dev_err(&instance->pdev->dev, "Failed from %s %d\n",1160 __func__, __LINE__);1161 return DCMD_INIT;1162 }1163 1164 instance->instancet->issue_dcmd(instance, cmd);1165 1166 if (timeout) {1167 ret = wait_event_timeout(instance->int_cmd_wait_q,1168 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);1169 if (!ret) {1170 dev_err(&instance->pdev->dev,1171 "DCMD(opcode: 0x%x) is timed out, func:%s\n",1172 cmd->frame->dcmd.opcode, __func__);1173 return DCMD_TIMEOUT;1174 }1175 } else1176 wait_event(instance->int_cmd_wait_q,1177 cmd->cmd_status_drv != DCMD_INIT);1178 1179 return cmd->cmd_status_drv;1180}1181 1182/**1183 * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd1184 * @instance: Adapter soft state1185 * @cmd_to_abort: Previously issued cmd to be aborted1186 * @timeout: Timeout in seconds1187 *1188 * MFI firmware can abort previously issued AEN comamnd (automatic event1189 * notification). The megasas_issue_blocked_abort_cmd() issues such abort1190 * cmd and waits for return status.1191 * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs1192 */1193static int1194megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,1195 struct megasas_cmd *cmd_to_abort, int timeout)1196{1197 struct megasas_cmd *cmd;1198 struct megasas_abort_frame *abort_fr;1199 int ret = 0;1200 u32 opcode;1201 1202 cmd = megasas_get_cmd(instance);1203 1204 if (!cmd)1205 return -1;1206 1207 abort_fr = &cmd->frame->abort;1208 1209 /*1210 * Prepare and issue the abort frame1211 */1212 abort_fr->cmd = MFI_CMD_ABORT;1213 abort_fr->cmd_status = MFI_STAT_INVALID_STATUS;1214 abort_fr->flags = cpu_to_le16(0);1215 abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index);1216 abort_fr->abort_mfi_phys_addr_lo =1217 cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr));1218 abort_fr->abort_mfi_phys_addr_hi =1219 cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr));1220 1221 cmd->sync_cmd = 1;1222 cmd->cmd_status_drv = DCMD_INIT;1223 1224 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {1225 dev_err(&instance->pdev->dev, "Failed from %s %d\n",1226 __func__, __LINE__);1227 return DCMD_INIT;1228 }1229 1230 instance->instancet->issue_dcmd(instance, cmd);1231 1232 if (timeout) {1233 ret = wait_event_timeout(instance->abort_cmd_wait_q,1234 cmd->cmd_status_drv != DCMD_INIT, timeout * HZ);1235 if (!ret) {1236 opcode = cmd_to_abort->frame->dcmd.opcode;1237 dev_err(&instance->pdev->dev,1238 "Abort(to be aborted DCMD opcode: 0x%x) is timed out func:%s\n",1239 opcode, __func__);1240 return DCMD_TIMEOUT;1241 }1242 } else1243 wait_event(instance->abort_cmd_wait_q,1244 cmd->cmd_status_drv != DCMD_INIT);1245 1246 cmd->sync_cmd = 0;1247 1248 megasas_return_cmd(instance, cmd);1249 return cmd->cmd_status_drv;1250}1251 1252/**1253 * megasas_make_sgl32 - Prepares 32-bit SGL1254 * @instance: Adapter soft state1255 * @scp: SCSI command from the mid-layer1256 * @mfi_sgl: SGL to be filled in1257 *1258 * If successful, this function returns the number of SG elements. Otherwise,1259 * it returnes -1.1260 */1261static int1262megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp,1263 union megasas_sgl *mfi_sgl)1264{1265 int i;1266 int sge_count;1267 struct scatterlist *os_sgl;1268 1269 sge_count = scsi_dma_map(scp);1270 BUG_ON(sge_count < 0);1271 1272 if (sge_count) {1273 scsi_for_each_sg(scp, os_sgl, sge_count, i) {1274 mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl));1275 mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl));1276 }1277 }1278 return sge_count;1279}1280 1281/**1282 * megasas_make_sgl64 - Prepares 64-bit SGL1283 * @instance: Adapter soft state1284 * @scp: SCSI command from the mid-layer1285 * @mfi_sgl: SGL to be filled in1286 *1287 * If successful, this function returns the number of SG elements. Otherwise,1288 * it returnes -1.1289 */1290static int1291megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp,1292 union megasas_sgl *mfi_sgl)1293{1294 int i;1295 int sge_count;1296 struct scatterlist *os_sgl;1297 1298 sge_count = scsi_dma_map(scp);1299 BUG_ON(sge_count < 0);1300 1301 if (sge_count) {1302 scsi_for_each_sg(scp, os_sgl, sge_count, i) {1303 mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl));1304 mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl));1305 }1306 }1307 return sge_count;1308}1309 1310/**1311 * megasas_make_sgl_skinny - Prepares IEEE SGL1312 * @instance: Adapter soft state1313 * @scp: SCSI command from the mid-layer1314 * @mfi_sgl: SGL to be filled in1315 *1316 * If successful, this function returns the number of SG elements. Otherwise,1317 * it returnes -1.1318 */1319static int1320megasas_make_sgl_skinny(struct megasas_instance *instance,1321 struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl)1322{1323 int i;1324 int sge_count;1325 struct scatterlist *os_sgl;1326 1327 sge_count = scsi_dma_map(scp);1328 1329 if (sge_count) {1330 scsi_for_each_sg(scp, os_sgl, sge_count, i) {1331 mfi_sgl->sge_skinny[i].length =1332 cpu_to_le32(sg_dma_len(os_sgl));1333 mfi_sgl->sge_skinny[i].phys_addr =1334 cpu_to_le64(sg_dma_address(os_sgl));1335 mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0);1336 }1337 }1338 return sge_count;1339}1340 1341 /**1342 * megasas_get_frame_count - Computes the number of frames1343 * @frame_type : type of frame- io or pthru frame1344 * @sge_count : number of sg elements1345 *1346 * Returns the number of frames required for numnber of sge's (sge_count)1347 */1348 1349static u32 megasas_get_frame_count(struct megasas_instance *instance,1350 u8 sge_count, u8 frame_type)1351{1352 int num_cnt;1353 int sge_bytes;1354 u32 sge_sz;1355 u32 frame_count = 0;1356 1357 sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) :1358 sizeof(struct megasas_sge32);1359 1360 if (instance->flag_ieee) {1361 sge_sz = sizeof(struct megasas_sge_skinny);1362 }1363 1364 /*1365 * Main frame can contain 2 SGEs for 64-bit SGLs and1366 * 3 SGEs for 32-bit SGLs for ldio &1367 * 1 SGEs for 64-bit SGLs and1368 * 2 SGEs for 32-bit SGLs for pthru frame1369 */1370 if (unlikely(frame_type == PTHRU_FRAME)) {1371 if (instance->flag_ieee == 1) {1372 num_cnt = sge_count - 1;1373 } else if (IS_DMA64)1374 num_cnt = sge_count - 1;1375 else1376 num_cnt = sge_count - 2;1377 } else {1378 if (instance->flag_ieee == 1) {1379 num_cnt = sge_count - 1;1380 } else if (IS_DMA64)1381 num_cnt = sge_count - 2;1382 else1383 num_cnt = sge_count - 3;1384 }1385 1386 if (num_cnt > 0) {1387 sge_bytes = sge_sz * num_cnt;1388 1389 frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) +1390 ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ;1391 }1392 /* Main frame */1393 frame_count += 1;1394 1395 if (frame_count > 7)1396 frame_count = 8;1397 return frame_count;1398}1399 1400/**1401 * megasas_build_dcdb - Prepares a direct cdb (DCDB) command1402 * @instance: Adapter soft state1403 * @scp: SCSI command1404 * @cmd: Command to be prepared in1405 *1406 * This function prepares CDB commands. These are typcially pass-through1407 * commands to the devices.1408 */1409static int1410megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp,1411 struct megasas_cmd *cmd)1412{1413 u32 is_logical;1414 u32 device_id;1415 u16 flags = 0;1416 struct megasas_pthru_frame *pthru;1417 1418 is_logical = MEGASAS_IS_LOGICAL(scp->device);1419 device_id = MEGASAS_DEV_INDEX(scp);1420 pthru = (struct megasas_pthru_frame *)cmd->frame;1421 1422 if (scp->sc_data_direction == DMA_TO_DEVICE)1423 flags = MFI_FRAME_DIR_WRITE;1424 else if (scp->sc_data_direction == DMA_FROM_DEVICE)1425 flags = MFI_FRAME_DIR_READ;1426 else if (scp->sc_data_direction == DMA_NONE)1427 flags = MFI_FRAME_DIR_NONE;1428 1429 if (instance->flag_ieee == 1) {1430 flags |= MFI_FRAME_IEEE;1431 }1432 1433 /*1434 * Prepare the DCDB frame1435 */1436 pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO;1437 pthru->cmd_status = 0x0;1438 pthru->scsi_status = 0x0;1439 pthru->target_id = device_id;1440 pthru->lun = scp->device->lun;1441 pthru->cdb_len = scp->cmd_len;1442 pthru->timeout = 0;1443 pthru->pad_0 = 0;1444 pthru->flags = cpu_to_le16(flags);1445 pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp));1446 1447 memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);1448 1449 /*1450 * If the command is for the tape device, set the1451 * pthru timeout to the os layer timeout value.1452 */1453 if (scp->device->type == TYPE_TAPE) {1454 if (scsi_cmd_to_rq(scp)->timeout / HZ > 0xFFFF)1455 pthru->timeout = cpu_to_le16(0xFFFF);1456 else1457 pthru->timeout = cpu_to_le16(scsi_cmd_to_rq(scp)->timeout / HZ);1458 }1459 1460 /*1461 * Construct SGL1462 */1463 if (instance->flag_ieee == 1) {1464 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);1465 pthru->sge_count = megasas_make_sgl_skinny(instance, scp,1466 &pthru->sgl);1467 } else if (IS_DMA64) {1468 pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64);1469 pthru->sge_count = megasas_make_sgl64(instance, scp,1470 &pthru->sgl);1471 } else1472 pthru->sge_count = megasas_make_sgl32(instance, scp,1473 &pthru->sgl);1474 1475 if (pthru->sge_count > instance->max_num_sge) {1476 dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n",1477 pthru->sge_count);1478 return 0;1479 }1480 1481 /*1482 * Sense info specific1483 */1484 pthru->sense_len = SCSI_SENSE_BUFFERSIZE;1485 pthru->sense_buf_phys_addr_hi =1486 cpu_to_le32(upper_32_bits(cmd->sense_phys_addr));1487 pthru->sense_buf_phys_addr_lo =1488 cpu_to_le32(lower_32_bits(cmd->sense_phys_addr));1489 1490 /*1491 * Compute the total number of frames this command consumes. FW uses1492 * this number to pull sufficient number of frames from host memory.1493 */1494 cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count,1495 PTHRU_FRAME);1496 1497 return cmd->frame_count;1498}1499 1500/**1501 * megasas_build_ldio - Prepares IOs to logical devices1502 * @instance: Adapter soft state1503 * @scp: SCSI command1504 * @cmd: Command to be prepared1505 *1506 * Frames (and accompanying SGLs) for regular SCSI IOs use this function.1507 */1508static int1509megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,1510 struct megasas_cmd *cmd)1511{1512 u32 device_id;1513 u8 sc = scp->cmnd[0];1514 u16 flags = 0;1515 struct megasas_io_frame *ldio;1516 1517 device_id = MEGASAS_DEV_INDEX(scp);1518 ldio = (struct megasas_io_frame *)cmd->frame;1519 1520 if (scp->sc_data_direction == DMA_TO_DEVICE)1521 flags = MFI_FRAME_DIR_WRITE;1522 else if (scp->sc_data_direction == DMA_FROM_DEVICE)1523 flags = MFI_FRAME_DIR_READ;1524 1525 if (instance->flag_ieee == 1) {1526 flags |= MFI_FRAME_IEEE;1527 }1528 1529 /*1530 * Prepare the Logical IO frame: 2nd bit is zero for all read cmds1531 */1532 ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ;1533 ldio->cmd_status = 0x0;1534 ldio->scsi_status = 0x0;1535 ldio->target_id = device_id;1536 ldio->timeout = 0;1537 ldio->reserved_0 = 0;1538 ldio->pad_0 = 0;1539 ldio->flags = cpu_to_le16(flags);1540 ldio->start_lba_hi = 0;1541 ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0;1542 1543 /*1544 * 6-byte READ(0x08) or WRITE(0x0A) cdb1545 */1546 if (scp->cmd_len == 6) {1547 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]);1548 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) |1549 ((u32) scp->cmnd[2] << 8) |1550 (u32) scp->cmnd[3]);1551 1552 ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF);1553 }1554 1555 /*1556 * 10-byte READ(0x28) or WRITE(0x2A) cdb1557 */1558 else if (scp->cmd_len == 10) {1559 ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] |1560 ((u32) scp->cmnd[7] << 8));1561 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |1562 ((u32) scp->cmnd[3] << 16) |1563 ((u32) scp->cmnd[4] << 8) |1564 (u32) scp->cmnd[5]);1565 }1566 1567 /*1568 * 12-byte READ(0xA8) or WRITE(0xAA) cdb1569 */1570 else if (scp->cmd_len == 12) {1571 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) |1572 ((u32) scp->cmnd[7] << 16) |1573 ((u32) scp->cmnd[8] << 8) |1574 (u32) scp->cmnd[9]);1575 1576 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) |1577 ((u32) scp->cmnd[3] << 16) |1578 ((u32) scp->cmnd[4] << 8) |1579 (u32) scp->cmnd[5]);1580 }1581 1582 /*1583 * 16-byte READ(0x88) or WRITE(0x8A) cdb1584 */1585 else if (scp->cmd_len == 16) {1586 ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) |1587 ((u32) scp->cmnd[11] << 16) |1588 ((u32) scp->cmnd[12] << 8) |1589 (u32) scp->cmnd[13]);1590 1591 ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) |1592 ((u32) scp->cmnd[7] << 16) |1593 ((u32) scp->cmnd[8] << 8) |1594 (u32) scp->cmnd[9]);1595 1596 ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) |1597 ((u32) scp->cmnd[3] << 16) |1598 ((u32) scp->cmnd[4] << 8) |1599 (u32) scp->cmnd[5]);1600 1601 }1602 1603 /*1604 * Construct SGL1605 */1606 if (instance->flag_ieee) {1607 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);1608 ldio->sge_count = megasas_make_sgl_skinny(instance, scp,1609 &ldio->sgl);1610 } else if (IS_DMA64) {1611 ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64);1612 ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl);1613 } else1614 ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl);1615 1616 if (ldio->sge_count > instance->max_num_sge) {1617 dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n",1618 ldio->sge_count);1619 return 0;1620 }1621 1622 /*1623 * Sense info specific1624 */1625 ldio->sense_len = SCSI_SENSE_BUFFERSIZE;1626 ldio->sense_buf_phys_addr_hi = 0;1627 ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr);1628 1629 /*1630 * Compute the total number of frames this command consumes. FW uses1631 * this number to pull sufficient number of frames from host memory.1632 */1633 cmd->frame_count = megasas_get_frame_count(instance,1634 ldio->sge_count, IO_FRAME);1635 1636 return cmd->frame_count;1637}1638 1639/**1640 * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD1641 * and whether it's RW or non RW1642 * @cmd: SCSI command1643 *1644 */1645inline int megasas_cmd_type(struct scsi_cmnd *cmd)1646{1647 int ret;1648 1649 switch (cmd->cmnd[0]) {1650 case READ_10:1651 case WRITE_10:1652 case READ_12:1653 case WRITE_12:1654 case READ_6:1655 case WRITE_6:1656 case READ_16:1657 case WRITE_16:1658 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?1659 READ_WRITE_LDIO : READ_WRITE_SYSPDIO;1660 break;1661 default:1662 ret = (MEGASAS_IS_LOGICAL(cmd->device)) ?1663 NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO;1664 }1665 return ret;1666}1667 1668 /**1669 * megasas_dump_pending_frames - Dumps the frame address of all pending cmds1670 * in FW1671 * @instance: Adapter soft state1672 */1673static inline void1674megasas_dump_pending_frames(struct megasas_instance *instance)1675{1676 struct megasas_cmd *cmd;1677 int i,n;1678 union megasas_sgl *mfi_sgl;1679 struct megasas_io_frame *ldio;1680 struct megasas_pthru_frame *pthru;1681 u32 sgcount;1682 u16 max_cmd = instance->max_fw_cmds;1683 1684 dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no);1685 dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding));1686 if (IS_DMA64)1687 dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no);1688 else1689 dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no);1690 1691 dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no);1692 for (i = 0; i < max_cmd; i++) {1693 cmd = instance->cmd_list[i];1694 if (!cmd->scmd)1695 continue;1696 dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr);1697 if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) {1698 ldio = (struct megasas_io_frame *)cmd->frame;1699 mfi_sgl = &ldio->sgl;1700 sgcount = ldio->sge_count;1701 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x,"1702 " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",1703 instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id,1704 le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi),1705 le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount);1706 } else {1707 pthru = (struct megasas_pthru_frame *) cmd->frame;1708 mfi_sgl = &pthru->sgl;1709 sgcount = pthru->sge_count;1710 dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, "1711 "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n",1712 instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id,1713 pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len),1714 le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount);1715 }1716 if (megasas_dbg_lvl & MEGASAS_DBG_LVL) {1717 for (n = 0; n < sgcount; n++) {1718 if (IS_DMA64)1719 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n",1720 le32_to_cpu(mfi_sgl->sge64[n].length),1721 le64_to_cpu(mfi_sgl->sge64[n].phys_addr));1722 else1723 dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n",1724 le32_to_cpu(mfi_sgl->sge32[n].length),1725 le32_to_cpu(mfi_sgl->sge32[n].phys_addr));1726 }1727 }1728 } /*for max_cmd*/1729 dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no);1730 for (i = 0; i < max_cmd; i++) {1731 1732 cmd = instance->cmd_list[i];1733 1734 if (cmd->sync_cmd == 1)1735 dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr);1736 }1737 dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no);1738}1739 1740u321741megasas_build_and_issue_cmd(struct megasas_instance *instance,1742 struct scsi_cmnd *scmd)1743{1744 struct megasas_cmd *cmd;1745 u32 frame_count;1746 1747 cmd = megasas_get_cmd(instance);1748 if (!cmd)1749 return SCSI_MLQUEUE_HOST_BUSY;1750 1751 /*1752 * Logical drive command1753 */1754 if (megasas_cmd_type(scmd) == READ_WRITE_LDIO)1755 frame_count = megasas_build_ldio(instance, scmd, cmd);1756 else1757 frame_count = megasas_build_dcdb(instance, scmd, cmd);1758 1759 if (!frame_count)1760 goto out_return_cmd;1761 1762 cmd->scmd = scmd;1763 megasas_priv(scmd)->cmd_priv = cmd;1764 1765 /*1766 * Issue the command to the FW1767 */1768 atomic_inc(&instance->fw_outstanding);1769 1770 instance->instancet->fire_cmd(instance, cmd->frame_phys_addr,1771 cmd->frame_count-1, instance->reg_set);1772 1773 return 0;1774out_return_cmd:1775 megasas_return_cmd(instance, cmd);1776 return SCSI_MLQUEUE_HOST_BUSY;1777}1778 1779 1780/**1781 * megasas_queue_command - Queue entry point1782 * @shost: adapter SCSI host1783 * @scmd: SCSI command to be queued1784 */1785static int1786megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd)1787{1788 struct megasas_instance *instance;1789 struct MR_PRIV_DEVICE *mr_device_priv_data;1790 u32 ld_tgt_id;1791 1792 instance = (struct megasas_instance *)1793 scmd->device->host->hostdata;1794 1795 if (instance->unload == 1) {1796 scmd->result = DID_NO_CONNECT << 16;1797 scsi_done(scmd);1798 return 0;1799 }1800 1801 if (instance->issuepend_done == 0)1802 return SCSI_MLQUEUE_HOST_BUSY;1803 1804 1805 /* Check for an mpio path and adjust behavior */1806 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {1807 if (megasas_check_mpio_paths(instance, scmd) ==1808 (DID_REQUEUE << 16)) {1809 return SCSI_MLQUEUE_HOST_BUSY;1810 } else {1811 scmd->result = DID_NO_CONNECT << 16;1812 scsi_done(scmd);1813 return 0;1814 }1815 }1816 1817 mr_device_priv_data = scmd->device->hostdata;1818 if (!mr_device_priv_data ||1819 (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)) {1820 scmd->result = DID_NO_CONNECT << 16;1821 scsi_done(scmd);1822 return 0;1823 }1824 1825 if (MEGASAS_IS_LOGICAL(scmd->device)) {1826 ld_tgt_id = MEGASAS_TARGET_ID(scmd->device);1827 if (instance->ld_tgtid_status[ld_tgt_id] == LD_TARGET_ID_DELETED) {1828 scmd->result = DID_NO_CONNECT << 16;1829 scsi_done(scmd);1830 return 0;1831 }1832 }1833 1834 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL)1835 return SCSI_MLQUEUE_HOST_BUSY;1836 1837 if (mr_device_priv_data->tm_busy)1838 return SCSI_MLQUEUE_DEVICE_BUSY;1839 1840 1841 scmd->result = 0;1842 1843 if (MEGASAS_IS_LOGICAL(scmd->device) &&1844 (scmd->device->id >= instance->fw_supported_vd_count ||1845 scmd->device->lun)) {1846 scmd->result = DID_BAD_TARGET << 16;1847 goto out_done;1848 }1849 1850 if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&1851 MEGASAS_IS_LOGICAL(scmd->device) &&1852 (!instance->fw_sync_cache_support)) {1853 scmd->result = DID_OK << 16;1854 goto out_done;1855 }1856 1857 return instance->instancet->build_and_issue_cmd(instance, scmd);1858 1859 out_done:1860 scsi_done(scmd);1861 return 0;1862}1863 1864static struct megasas_instance *megasas_lookup_instance(u16 host_no)1865{1866 int i;1867 1868 for (i = 0; i < megasas_mgmt_info.max_index; i++) {1869 1870 if ((megasas_mgmt_info.instance[i]) &&1871 (megasas_mgmt_info.instance[i]->host->host_no == host_no))1872 return megasas_mgmt_info.instance[i];1873 }1874 1875 return NULL;1876}1877 1878/*1879* megasas_set_dynamic_target_properties -1880* Device property set by driver may not be static and it is required to be1881* updated after OCR1882*1883* set tm_capable.1884* set dma alignment (only for eedp protection enable vd).1885*1886* @sdev: OS provided scsi device1887*1888* Returns void1889*/1890void megasas_set_dynamic_target_properties(struct scsi_device *sdev,1891 struct queue_limits *lim, bool is_target_prop)1892{1893 u16 pd_index = 0, ld;1894 u32 device_id;1895 struct megasas_instance *instance;1896 struct fusion_context *fusion;1897 struct MR_PRIV_DEVICE *mr_device_priv_data;1898 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;1899 struct MR_LD_RAID *raid;1900 struct MR_DRV_RAID_MAP_ALL *local_map_ptr;1901 1902 instance = megasas_lookup_instance(sdev->host->host_no);1903 fusion = instance->ctrl_context;1904 mr_device_priv_data = sdev->hostdata;1905 1906 if (!fusion || !mr_device_priv_data)1907 return;1908 1909 if (MEGASAS_IS_LOGICAL(sdev)) {1910 device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL)1911 + sdev->id;1912 local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)];1913 ld = MR_TargetIdToLdGet(device_id, local_map_ptr);1914 if (ld >= instance->fw_supported_vd_count)1915 return;1916 raid = MR_LdRaidGet(ld, local_map_ptr);1917 1918 if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {1919 if (lim)1920 lim->dma_alignment = 0x7;1921 }1922 1923 mr_device_priv_data->is_tm_capable =1924 raid->capability.tmCapable;1925 1926 if (!raid->flags.isEPD)1927 sdev->no_write_same = 1;1928 1929 } else if (instance->use_seqnum_jbod_fp) {1930 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +1931 sdev->id;1932 pd_sync = (void *)fusion->pd_seq_sync1933 [(instance->pd_seq_map_id - 1) & 1];1934 mr_device_priv_data->is_tm_capable =1935 pd_sync->seq[pd_index].capability.tmCapable;1936 }1937 1938 if (is_target_prop && instance->tgt_prop->reset_tmo) {1939 /*1940 * If FW provides a target reset timeout value, driver will use1941 * it. If not set, fallback to default values.1942 */1943 mr_device_priv_data->target_reset_tmo =1944 min_t(u8, instance->max_reset_tmo,1945 instance->tgt_prop->reset_tmo);1946 mr_device_priv_data->task_abort_tmo = instance->task_abort_tmo;1947 } else {1948 mr_device_priv_data->target_reset_tmo =1949 MEGASAS_DEFAULT_TM_TIMEOUT;1950 mr_device_priv_data->task_abort_tmo =1951 MEGASAS_DEFAULT_TM_TIMEOUT;1952 }1953}1954 1955/*1956 * megasas_set_nvme_device_properties -1957 * set nomerges=21958 * set virtual page boundary = 4K (current mr_nvme_pg_size is 4K).1959 * set maximum io transfer = MDTS of NVME device provided by MR firmware.1960 *1961 * MR firmware provides value in KB. Caller of this function converts1962 * kb into bytes.1963 *1964 * e.a MDTS=5 means 2^5 * nvme page size. (In case of 4K page size,1965 * MR firmware provides value 128 as (32 * 4K) = 128K.1966 *1967 * @sdev: scsi device1968 * @max_io_size: maximum io transfer size1969 *1970 */1971static inline void1972megasas_set_nvme_device_properties(struct scsi_device *sdev,1973 struct queue_limits *lim, u32 max_io_size)1974{1975 struct megasas_instance *instance;1976 u32 mr_nvme_pg_size;1977 1978 instance = (struct megasas_instance *)sdev->host->hostdata;1979 mr_nvme_pg_size = max_t(u32, instance->nvme_page_size,1980 MR_DEFAULT_NVME_PAGE_SIZE);1981 1982 lim->max_hw_sectors = max_io_size / 512;1983 lim->virt_boundary_mask = mr_nvme_pg_size - 1;1984}1985 1986/*1987 * megasas_set_fw_assisted_qd -1988 * set device queue depth to can_queue1989 * set device queue depth to fw assisted qd1990 *1991 * @sdev: scsi device1992 * @is_target_prop true, if fw provided target properties.1993 */1994static void megasas_set_fw_assisted_qd(struct scsi_device *sdev,1995 bool is_target_prop)1996{1997 u8 interface_type;1998 u32 device_qd = MEGASAS_DEFAULT_CMD_PER_LUN;1999 u32 tgt_device_qd;2000 struct megasas_instance *instance;2001 struct MR_PRIV_DEVICE *mr_device_priv_data;2002 2003 instance = megasas_lookup_instance(sdev->host->host_no);2004 mr_device_priv_data = sdev->hostdata;2005 interface_type = mr_device_priv_data->interface_type;2006 2007 switch (interface_type) {2008 case SAS_PD:2009 device_qd = MEGASAS_SAS_QD;2010 break;2011 case SATA_PD:2012 device_qd = MEGASAS_SATA_QD;2013 break;2014 case NVME_PD:2015 device_qd = MEGASAS_NVME_QD;2016 break;2017 }2018 2019 if (is_target_prop) {2020 tgt_device_qd = le32_to_cpu(instance->tgt_prop->device_qdepth);2021 if (tgt_device_qd)2022 device_qd = min(instance->host->can_queue,2023 (int)tgt_device_qd);2024 }2025 2026 if (instance->enable_sdev_max_qd && interface_type != UNKNOWN_DRIVE)2027 device_qd = instance->host->can_queue;2028 2029 scsi_change_queue_depth(sdev, device_qd);2030}2031 2032/*2033 * megasas_set_static_target_properties -2034 * Device property set by driver are static and it is not required to be2035 * updated after OCR.2036 *2037 * set io timeout2038 * set device queue depth2039 * set nvme device properties. see - megasas_set_nvme_device_properties2040 *2041 * @sdev: scsi device2042 * @is_target_prop true, if fw provided target properties.2043 */2044static void megasas_set_static_target_properties(struct scsi_device *sdev,2045 struct queue_limits *lim, bool is_target_prop)2046{2047 u32 max_io_size_kb = MR_DEFAULT_NVME_MDTS_KB;2048 struct megasas_instance *instance;2049 2050 instance = megasas_lookup_instance(sdev->host->host_no);2051 2052 /*2053 * The RAID firmware may require extended timeouts.2054 */2055 blk_queue_rq_timeout(sdev->request_queue, scmd_timeout * HZ);2056 2057 /* max_io_size_kb will be set to non zero for2058 * nvme based vd and syspd.2059 */2060 if (is_target_prop)2061 max_io_size_kb = le32_to_cpu(instance->tgt_prop->max_io_size_kb);2062 2063 if (instance->nvme_page_size && max_io_size_kb)2064 megasas_set_nvme_device_properties(sdev, lim,2065 max_io_size_kb << 10);2066 2067 megasas_set_fw_assisted_qd(sdev, is_target_prop);2068}2069 2070 2071static int megasas_device_configure(struct scsi_device *sdev,2072 struct queue_limits *lim)2073{2074 u16 pd_index = 0;2075 struct megasas_instance *instance;2076 int ret_target_prop = DCMD_FAILED;2077 bool is_target_prop = false;2078 2079 instance = megasas_lookup_instance(sdev->host->host_no);2080 if (instance->pd_list_not_supported) {2081 if (!MEGASAS_IS_LOGICAL(sdev) && sdev->type == TYPE_DISK) {2082 pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +2083 sdev->id;2084 if (instance->pd_list[pd_index].driveState !=2085 MR_PD_STATE_SYSTEM)2086 return -ENXIO;2087 }2088 }2089 2090 mutex_lock(&instance->reset_mutex);2091 /* Send DCMD to Firmware and cache the information */2092 if ((instance->pd_info) && !MEGASAS_IS_LOGICAL(sdev))2093 megasas_get_pd_info(instance, sdev);2094 2095 /* Some ventura firmware may not have instance->nvme_page_size set.2096 * Do not send MR_DCMD_DRV_GET_TARGET_PROP2097 */2098 if ((instance->tgt_prop) && (instance->nvme_page_size))2099 ret_target_prop = megasas_get_target_prop(instance, sdev);2100 2101 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;2102 megasas_set_static_target_properties(sdev, lim, is_target_prop);2103 2104 /* This sdev property may change post OCR */2105 megasas_set_dynamic_target_properties(sdev, lim, is_target_prop);2106 2107 mutex_unlock(&instance->reset_mutex);2108 2109 return 0;2110}2111 2112static int megasas_slave_alloc(struct scsi_device *sdev)2113{2114 u16 pd_index = 0, ld_tgt_id;2115 struct megasas_instance *instance ;2116 struct MR_PRIV_DEVICE *mr_device_priv_data;2117 2118 instance = megasas_lookup_instance(sdev->host->host_no);2119 if (!MEGASAS_IS_LOGICAL(sdev)) {2120 /*2121 * Open the OS scan to the SYSTEM PD2122 */2123 pd_index =2124 (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +2125 sdev->id;2126 if ((instance->pd_list_not_supported ||2127 instance->pd_list[pd_index].driveState ==2128 MR_PD_STATE_SYSTEM)) {2129 goto scan_target;2130 }2131 return -ENXIO;2132 } else if (!MEGASAS_IS_LUN_VALID(sdev)) {2133 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__);2134 return -ENXIO;2135 }2136 2137scan_target:2138 mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data),2139 GFP_KERNEL);2140 if (!mr_device_priv_data)2141 return -ENOMEM;2142 2143 if (MEGASAS_IS_LOGICAL(sdev)) {2144 ld_tgt_id = MEGASAS_TARGET_ID(sdev);2145 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_ACTIVE;2146 if (megasas_dbg_lvl & LD_PD_DEBUG)2147 sdev_printk(KERN_INFO, sdev, "LD target ID %d created.\n", ld_tgt_id);2148 }2149 2150 sdev->hostdata = mr_device_priv_data;2151 2152 atomic_set(&mr_device_priv_data->r1_ldio_hint,2153 instance->r1_ldio_hint_default);2154 return 0;2155}2156 2157static void megasas_slave_destroy(struct scsi_device *sdev)2158{2159 u16 ld_tgt_id;2160 struct megasas_instance *instance;2161 2162 instance = megasas_lookup_instance(sdev->host->host_no);2163 2164 if (MEGASAS_IS_LOGICAL(sdev)) {2165 if (!MEGASAS_IS_LUN_VALID(sdev)) {2166 sdev_printk(KERN_INFO, sdev, "%s: invalid LUN\n", __func__);2167 return;2168 }2169 ld_tgt_id = MEGASAS_TARGET_ID(sdev);2170 instance->ld_tgtid_status[ld_tgt_id] = LD_TARGET_ID_DELETED;2171 if (megasas_dbg_lvl & LD_PD_DEBUG)2172 sdev_printk(KERN_INFO, sdev,2173 "LD target ID %d removed from OS stack\n", ld_tgt_id);2174 }2175 2176 kfree(sdev->hostdata);2177 sdev->hostdata = NULL;2178}2179 2180/*2181* megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a2182* kill adapter2183* @instance: Adapter soft state2184*2185*/2186static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance)2187{2188 int i;2189 struct megasas_cmd *cmd_mfi;2190 struct megasas_cmd_fusion *cmd_fusion;2191 struct fusion_context *fusion = instance->ctrl_context;2192 2193 /* Find all outstanding ioctls */2194 if (fusion) {2195 for (i = 0; i < instance->max_fw_cmds; i++) {2196 cmd_fusion = fusion->cmd_list[i];2197 if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {2198 cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];2199 if (cmd_mfi->sync_cmd &&2200 (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {2201 cmd_mfi->frame->hdr.cmd_status =2202 MFI_STAT_WRONG_STATE;2203 megasas_complete_cmd(instance,2204 cmd_mfi, DID_OK);2205 }2206 }2207 }2208 } else {2209 for (i = 0; i < instance->max_fw_cmds; i++) {2210 cmd_mfi = instance->cmd_list[i];2211 if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd !=2212 MFI_CMD_ABORT)2213 megasas_complete_cmd(instance, cmd_mfi, DID_OK);2214 }2215 }2216}2217 2218 2219void megaraid_sas_kill_hba(struct megasas_instance *instance)2220{2221 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {2222 dev_warn(&instance->pdev->dev,2223 "Adapter already dead, skipping kill HBA\n");2224 return;2225 }2226 2227 /* Set critical error to block I/O & ioctls in case caller didn't */2228 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);2229 /* Wait 1 second to ensure IO or ioctls in build have posted */2230 msleep(1000);2231 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||2232 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||2233 (instance->adapter_type != MFI_SERIES)) {2234 if (!instance->requestorId) {2235 writel(MFI_STOP_ADP, &instance->reg_set->doorbell);2236 /* Flush */2237 readl(&instance->reg_set->doorbell);2238 }2239 if (instance->requestorId && instance->peerIsPresent)2240 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);2241 } else {2242 writel(MFI_STOP_ADP,2243 &instance->reg_set->inbound_doorbell);2244 }2245 /* Complete outstanding ioctls when adapter is killed */2246 megasas_complete_outstanding_ioctls(instance);2247}2248 2249 /**2250 * megasas_check_and_restore_queue_depth - Check if queue depth needs to be2251 * restored to max value2252 * @instance: Adapter soft state2253 *2254 */2255void2256megasas_check_and_restore_queue_depth(struct megasas_instance *instance)2257{2258 unsigned long flags;2259 2260 if (instance->flag & MEGASAS_FW_BUSY2261 && time_after(jiffies, instance->last_time + 5 * HZ)2262 && atomic_read(&instance->fw_outstanding) <2263 instance->throttlequeuedepth + 1) {2264 2265 spin_lock_irqsave(instance->host->host_lock, flags);2266 instance->flag &= ~MEGASAS_FW_BUSY;2267 2268 instance->host->can_queue = instance->cur_can_queue;2269 spin_unlock_irqrestore(instance->host->host_lock, flags);2270 }2271}2272 2273/**2274 * megasas_complete_cmd_dpc - Returns FW's controller structure2275 * @instance_addr: Address of adapter soft state2276 *2277 * Tasklet to complete cmds2278 */2279static void megasas_complete_cmd_dpc(unsigned long instance_addr)2280{2281 u32 producer;2282 u32 consumer;2283 u32 context;2284 struct megasas_cmd *cmd;2285 struct megasas_instance *instance =2286 (struct megasas_instance *)instance_addr;2287 unsigned long flags;2288 2289 /* If we have already declared adapter dead, donot complete cmds */2290 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)2291 return;2292 2293 spin_lock_irqsave(&instance->completion_lock, flags);2294 2295 producer = le32_to_cpu(*instance->producer);2296 consumer = le32_to_cpu(*instance->consumer);2297 2298 while (consumer != producer) {2299 context = le32_to_cpu(instance->reply_queue[consumer]);2300 if (context >= instance->max_fw_cmds) {2301 dev_err(&instance->pdev->dev, "Unexpected context value %x\n",2302 context);2303 BUG();2304 }2305 2306 cmd = instance->cmd_list[context];2307 2308 megasas_complete_cmd(instance, cmd, DID_OK);2309 2310 consumer++;2311 if (consumer == (instance->max_fw_cmds + 1)) {2312 consumer = 0;2313 }2314 }2315 2316 *instance->consumer = cpu_to_le32(producer);2317 2318 spin_unlock_irqrestore(&instance->completion_lock, flags);2319 2320 /*2321 * Check if we can restore can_queue2322 */2323 megasas_check_and_restore_queue_depth(instance);2324}2325 2326static void megasas_sriov_heartbeat_handler(struct timer_list *t);2327 2328/**2329 * megasas_start_timer - Initializes sriov heartbeat timer object2330 * @instance: Adapter soft state2331 *2332 */2333void megasas_start_timer(struct megasas_instance *instance)2334{2335 struct timer_list *timer = &instance->sriov_heartbeat_timer;2336 2337 timer_setup(timer, megasas_sriov_heartbeat_handler, 0);2338 timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;2339 add_timer(timer);2340}2341 2342static void2343megasas_internal_reset_defer_cmds(struct megasas_instance *instance);2344 2345static void2346process_fw_state_change_wq(struct work_struct *work);2347 2348static void megasas_do_ocr(struct megasas_instance *instance)2349{2350 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||2351 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||2352 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {2353 *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);2354 }2355 instance->instancet->disable_intr(instance);2356 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);2357 instance->issuepend_done = 0;2358 2359 atomic_set(&instance->fw_outstanding, 0);2360 megasas_internal_reset_defer_cmds(instance);2361 process_fw_state_change_wq(&instance->work_init);2362}2363 2364static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance,2365 int initial)2366{2367 struct megasas_cmd *cmd;2368 struct megasas_dcmd_frame *dcmd;2369 struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL;2370 dma_addr_t new_affiliation_111_h;2371 int ld, retval = 0;2372 u8 thisVf;2373 2374 cmd = megasas_get_cmd(instance);2375 2376 if (!cmd) {2377 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:"2378 "Failed to get cmd for scsi%d\n",2379 instance->host->host_no);2380 return -ENOMEM;2381 }2382 2383 dcmd = &cmd->frame->dcmd;2384 2385 if (!instance->vf_affiliation_111) {2386 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "2387 "affiliation for scsi%d\n", instance->host->host_no);2388 megasas_return_cmd(instance, cmd);2389 return -ENOMEM;2390 }2391 2392 if (initial)2393 memset(instance->vf_affiliation_111, 0,2394 sizeof(struct MR_LD_VF_AFFILIATION_111));2395 else {2396 new_affiliation_111 =2397 dma_alloc_coherent(&instance->pdev->dev,2398 sizeof(struct MR_LD_VF_AFFILIATION_111),2399 &new_affiliation_111_h, GFP_KERNEL);2400 if (!new_affiliation_111) {2401 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "2402 "memory for new affiliation for scsi%d\n",2403 instance->host->host_no);2404 megasas_return_cmd(instance, cmd);2405 return -ENOMEM;2406 }2407 }2408 2409 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);2410 2411 dcmd->cmd = MFI_CMD_DCMD;2412 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;2413 dcmd->sge_count = 1;2414 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);2415 dcmd->timeout = 0;2416 dcmd->pad_0 = 0;2417 dcmd->data_xfer_len =2418 cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111));2419 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111);2420 2421 if (initial)2422 dcmd->sgl.sge32[0].phys_addr =2423 cpu_to_le32(instance->vf_affiliation_111_h);2424 else2425 dcmd->sgl.sge32[0].phys_addr =2426 cpu_to_le32(new_affiliation_111_h);2427 2428 dcmd->sgl.sge32[0].length = cpu_to_le32(2429 sizeof(struct MR_LD_VF_AFFILIATION_111));2430 2431 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "2432 "scsi%d\n", instance->host->host_no);2433 2434 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {2435 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"2436 " failed with status 0x%x for scsi%d\n",2437 dcmd->cmd_status, instance->host->host_no);2438 retval = 1; /* Do a scan if we couldn't get affiliation */2439 goto out;2440 }2441 2442 if (!initial) {2443 thisVf = new_affiliation_111->thisVf;2444 for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++)2445 if (instance->vf_affiliation_111->map[ld].policy[thisVf] !=2446 new_affiliation_111->map[ld].policy[thisVf]) {2447 dev_warn(&instance->pdev->dev, "SR-IOV: "2448 "Got new LD/VF affiliation for scsi%d\n",2449 instance->host->host_no);2450 memcpy(instance->vf_affiliation_111,2451 new_affiliation_111,2452 sizeof(struct MR_LD_VF_AFFILIATION_111));2453 retval = 1;2454 goto out;2455 }2456 }2457out:2458 if (new_affiliation_111) {2459 dma_free_coherent(&instance->pdev->dev,2460 sizeof(struct MR_LD_VF_AFFILIATION_111),2461 new_affiliation_111,2462 new_affiliation_111_h);2463 }2464 2465 megasas_return_cmd(instance, cmd);2466 2467 return retval;2468}2469 2470static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance,2471 int initial)2472{2473 struct megasas_cmd *cmd;2474 struct megasas_dcmd_frame *dcmd;2475 struct MR_LD_VF_AFFILIATION *new_affiliation = NULL;2476 struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL;2477 dma_addr_t new_affiliation_h;2478 int i, j, retval = 0, found = 0, doscan = 0;2479 u8 thisVf;2480 2481 cmd = megasas_get_cmd(instance);2482 2483 if (!cmd) {2484 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: "2485 "Failed to get cmd for scsi%d\n",2486 instance->host->host_no);2487 return -ENOMEM;2488 }2489 2490 dcmd = &cmd->frame->dcmd;2491 2492 if (!instance->vf_affiliation) {2493 dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF "2494 "affiliation for scsi%d\n", instance->host->host_no);2495 megasas_return_cmd(instance, cmd);2496 return -ENOMEM;2497 }2498 2499 if (initial)2500 memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) *2501 sizeof(struct MR_LD_VF_AFFILIATION));2502 else {2503 new_affiliation =2504 dma_alloc_coherent(&instance->pdev->dev,2505 (MAX_LOGICAL_DRIVES + 1) * sizeof(struct MR_LD_VF_AFFILIATION),2506 &new_affiliation_h, GFP_KERNEL);2507 if (!new_affiliation) {2508 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate "2509 "memory for new affiliation for scsi%d\n",2510 instance->host->host_no);2511 megasas_return_cmd(instance, cmd);2512 return -ENOMEM;2513 }2514 }2515 2516 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);2517 2518 dcmd->cmd = MFI_CMD_DCMD;2519 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;2520 dcmd->sge_count = 1;2521 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);2522 dcmd->timeout = 0;2523 dcmd->pad_0 = 0;2524 dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *2525 sizeof(struct MR_LD_VF_AFFILIATION));2526 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS);2527 2528 if (initial)2529 dcmd->sgl.sge32[0].phys_addr =2530 cpu_to_le32(instance->vf_affiliation_h);2531 else2532 dcmd->sgl.sge32[0].phys_addr =2533 cpu_to_le32(new_affiliation_h);2534 2535 dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) *2536 sizeof(struct MR_LD_VF_AFFILIATION));2537 2538 dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for "2539 "scsi%d\n", instance->host->host_no);2540 2541 2542 if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) {2543 dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD"2544 " failed with status 0x%x for scsi%d\n",2545 dcmd->cmd_status, instance->host->host_no);2546 retval = 1; /* Do a scan if we couldn't get affiliation */2547 goto out;2548 }2549 2550 if (!initial) {2551 if (!new_affiliation->ldCount) {2552 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "2553 "affiliation for passive path for scsi%d\n",2554 instance->host->host_no);2555 retval = 1;2556 goto out;2557 }2558 newmap = new_affiliation->map;2559 savedmap = instance->vf_affiliation->map;2560 thisVf = new_affiliation->thisVf;2561 for (i = 0 ; i < new_affiliation->ldCount; i++) {2562 found = 0;2563 for (j = 0; j < instance->vf_affiliation->ldCount;2564 j++) {2565 if (newmap->ref.targetId ==2566 savedmap->ref.targetId) {2567 found = 1;2568 if (newmap->policy[thisVf] !=2569 savedmap->policy[thisVf]) {2570 doscan = 1;2571 goto out;2572 }2573 }2574 savedmap = (struct MR_LD_VF_MAP *)2575 ((unsigned char *)savedmap +2576 savedmap->size);2577 }2578 if (!found && newmap->policy[thisVf] !=2579 MR_LD_ACCESS_HIDDEN) {2580 doscan = 1;2581 goto out;2582 }2583 newmap = (struct MR_LD_VF_MAP *)2584 ((unsigned char *)newmap + newmap->size);2585 }2586 2587 newmap = new_affiliation->map;2588 savedmap = instance->vf_affiliation->map;2589 2590 for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) {2591 found = 0;2592 for (j = 0 ; j < new_affiliation->ldCount; j++) {2593 if (savedmap->ref.targetId ==2594 newmap->ref.targetId) {2595 found = 1;2596 if (savedmap->policy[thisVf] !=2597 newmap->policy[thisVf]) {2598 doscan = 1;2599 goto out;2600 }2601 }2602 newmap = (struct MR_LD_VF_MAP *)2603 ((unsigned char *)newmap +2604 newmap->size);2605 }2606 if (!found && savedmap->policy[thisVf] !=2607 MR_LD_ACCESS_HIDDEN) {2608 doscan = 1;2609 goto out;2610 }2611 savedmap = (struct MR_LD_VF_MAP *)2612 ((unsigned char *)savedmap +2613 savedmap->size);2614 }2615 }2616out:2617 if (doscan) {2618 dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF "2619 "affiliation for scsi%d\n", instance->host->host_no);2620 memcpy(instance->vf_affiliation, new_affiliation,2621 new_affiliation->size);2622 retval = 1;2623 }2624 2625 if (new_affiliation)2626 dma_free_coherent(&instance->pdev->dev,2627 (MAX_LOGICAL_DRIVES + 1) *2628 sizeof(struct MR_LD_VF_AFFILIATION),2629 new_affiliation, new_affiliation_h);2630 megasas_return_cmd(instance, cmd);2631 2632 return retval;2633}2634 2635/* This function will get the current SR-IOV LD/VF affiliation */2636static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,2637 int initial)2638{2639 int retval;2640 2641 if (instance->PlasmaFW111)2642 retval = megasas_get_ld_vf_affiliation_111(instance, initial);2643 else2644 retval = megasas_get_ld_vf_affiliation_12(instance, initial);2645 return retval;2646}2647 2648/* This function will tell FW to start the SR-IOV heartbeat */2649int megasas_sriov_start_heartbeat(struct megasas_instance *instance,2650 int initial)2651{2652 struct megasas_cmd *cmd;2653 struct megasas_dcmd_frame *dcmd;2654 int retval = 0;2655 2656 cmd = megasas_get_cmd(instance);2657 2658 if (!cmd) {2659 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: "2660 "Failed to get cmd for scsi%d\n",2661 instance->host->host_no);2662 return -ENOMEM;2663 }2664 2665 dcmd = &cmd->frame->dcmd;2666 2667 if (initial) {2668 instance->hb_host_mem =2669 dma_alloc_coherent(&instance->pdev->dev,2670 sizeof(struct MR_CTRL_HB_HOST_MEM),2671 &instance->hb_host_mem_h,2672 GFP_KERNEL);2673 if (!instance->hb_host_mem) {2674 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate"2675 " memory for heartbeat host memory for scsi%d\n",2676 instance->host->host_no);2677 retval = -ENOMEM;2678 goto out;2679 }2680 }2681 2682 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);2683 2684 dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM));2685 dcmd->cmd = MFI_CMD_DCMD;2686 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;2687 dcmd->sge_count = 1;2688 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH);2689 dcmd->timeout = 0;2690 dcmd->pad_0 = 0;2691 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM));2692 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC);2693 2694 megasas_set_dma_settings(instance, dcmd, instance->hb_host_mem_h,2695 sizeof(struct MR_CTRL_HB_HOST_MEM));2696 2697 dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n",2698 instance->host->host_no);2699 2700 if ((instance->adapter_type != MFI_SERIES) &&2701 !instance->mask_interrupts)2702 retval = megasas_issue_blocked_cmd(instance, cmd,2703 MEGASAS_ROUTINE_WAIT_TIME_VF);2704 else2705 retval = megasas_issue_polled(instance, cmd);2706 2707 if (retval) {2708 dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST"2709 "_MEM_ALLOC DCMD %s for scsi%d\n",2710 (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ?2711 "timed out" : "failed", instance->host->host_no);2712 retval = 1;2713 }2714 2715out:2716 megasas_return_cmd(instance, cmd);2717 2718 return retval;2719}2720 2721/* Handler for SR-IOV heartbeat */2722static void megasas_sriov_heartbeat_handler(struct timer_list *t)2723{2724 struct megasas_instance *instance =2725 from_timer(instance, t, sriov_heartbeat_timer);2726 2727 if (instance->hb_host_mem->HB.fwCounter !=2728 instance->hb_host_mem->HB.driverCounter) {2729 instance->hb_host_mem->HB.driverCounter =2730 instance->hb_host_mem->HB.fwCounter;2731 mod_timer(&instance->sriov_heartbeat_timer,2732 jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);2733 } else {2734 dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never "2735 "completed for scsi%d\n", instance->host->host_no);2736 schedule_work(&instance->work_init);2737 }2738}2739 2740/**2741 * megasas_wait_for_outstanding - Wait for all outstanding cmds2742 * @instance: Adapter soft state2743 *2744 * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to2745 * complete all its outstanding commands. Returns error if one or more IOs2746 * are pending after this time period. It also marks the controller dead.2747 */2748static int megasas_wait_for_outstanding(struct megasas_instance *instance)2749{2750 int i, sl, outstanding;2751 u32 reset_index;2752 u32 wait_time = MEGASAS_RESET_WAIT_TIME;2753 unsigned long flags;2754 struct list_head clist_local;2755 struct megasas_cmd *reset_cmd;2756 u32 fw_state;2757 2758 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {2759 dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n",2760 __func__, __LINE__);2761 return FAILED;2762 }2763 2764 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {2765 2766 INIT_LIST_HEAD(&clist_local);2767 spin_lock_irqsave(&instance->hba_lock, flags);2768 list_splice_init(&instance->internal_reset_pending_q,2769 &clist_local);2770 spin_unlock_irqrestore(&instance->hba_lock, flags);2771 2772 dev_notice(&instance->pdev->dev, "HBA reset wait ...\n");2773 for (i = 0; i < wait_time; i++) {2774 msleep(1000);2775 if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL)2776 break;2777 }2778 2779 if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) {2780 dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n");2781 atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR);2782 return FAILED;2783 }2784 2785 reset_index = 0;2786 while (!list_empty(&clist_local)) {2787 reset_cmd = list_entry((&clist_local)->next,2788 struct megasas_cmd, list);2789 list_del_init(&reset_cmd->list);2790 if (reset_cmd->scmd) {2791 reset_cmd->scmd->result = DID_REQUEUE << 16;2792 dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n",2793 reset_index, reset_cmd,2794 reset_cmd->scmd->cmnd[0]);2795 2796 scsi_done(reset_cmd->scmd);2797 megasas_return_cmd(instance, reset_cmd);2798 } else if (reset_cmd->sync_cmd) {2799 dev_notice(&instance->pdev->dev, "%p synch cmds"2800 "reset queue\n",2801 reset_cmd);2802 2803 reset_cmd->cmd_status_drv = DCMD_INIT;2804 instance->instancet->fire_cmd(instance,2805 reset_cmd->frame_phys_addr,2806 0, instance->reg_set);2807 } else {2808 dev_notice(&instance->pdev->dev, "%p unexpected"2809 "cmds lst\n",2810 reset_cmd);2811 }2812 reset_index++;2813 }2814 2815 return SUCCESS;2816 }2817 2818 for (i = 0; i < resetwaittime; i++) {2819 outstanding = atomic_read(&instance->fw_outstanding);2820 2821 if (!outstanding)2822 break;2823 2824 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) {2825 dev_notice(&instance->pdev->dev, "[%2d]waiting for %d "2826 "commands to complete\n",i,outstanding);2827 /*2828 * Call cmd completion routine. Cmd to be2829 * be completed directly without depending on isr.2830 */2831 megasas_complete_cmd_dpc((unsigned long)instance);2832 }2833 2834 msleep(1000);2835 }2836 2837 i = 0;2838 outstanding = atomic_read(&instance->fw_outstanding);2839 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;2840 2841 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))2842 goto no_outstanding;2843 2844 if (instance->disableOnlineCtrlReset)2845 goto kill_hba_and_failed;2846 do {2847 if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) {2848 dev_info(&instance->pdev->dev,2849 "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, outstanding 0x%x\n",2850 __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding));2851 if (i == 3)2852 goto kill_hba_and_failed;2853 megasas_do_ocr(instance);2854 2855 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {2856 dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n",2857 __func__, __LINE__);2858 return FAILED;2859 }2860 dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n",2861 __func__, __LINE__);2862 2863 for (sl = 0; sl < 10; sl++)2864 msleep(500);2865 2866 outstanding = atomic_read(&instance->fw_outstanding);2867 2868 fw_state = instance->instancet->read_fw_status_reg(instance) & MFI_STATE_MASK;2869 if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL)))2870 goto no_outstanding;2871 }2872 i++;2873 } while (i <= 3);2874 2875no_outstanding:2876 2877 dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n",2878 __func__, __LINE__);2879 return SUCCESS;2880 2881kill_hba_and_failed:2882 2883 /* Reset not supported, kill adapter */2884 dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d"2885 " disableOnlineCtrlReset %d fw_outstanding %d \n",2886 __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset,2887 atomic_read(&instance->fw_outstanding));2888 megasas_dump_pending_frames(instance);2889 megaraid_sas_kill_hba(instance);2890 2891 return FAILED;2892}2893 2894/**2895 * megasas_generic_reset - Generic reset routine2896 * @scmd: Mid-layer SCSI command2897 *2898 * This routine implements a generic reset handler for device, bus and host2899 * reset requests. Device, bus and host specific reset handlers can use this2900 * function after they do their specific tasks.2901 */2902static int megasas_generic_reset(struct scsi_cmnd *scmd)2903{2904 int ret_val;2905 struct megasas_instance *instance;2906 2907 instance = (struct megasas_instance *)scmd->device->host->hostdata;2908 2909 scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n",2910 scmd->cmnd[0], scmd->retries);2911 2912 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {2913 dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n");2914 return FAILED;2915 }2916 2917 ret_val = megasas_wait_for_outstanding(instance);2918 if (ret_val == SUCCESS)2919 dev_notice(&instance->pdev->dev, "reset successful\n");2920 else2921 dev_err(&instance->pdev->dev, "failed to do reset\n");2922 2923 return ret_val;2924}2925 2926/**2927 * megasas_reset_timer - quiesce the adapter if required2928 * @scmd: scsi cmnd2929 *2930 * Sets the FW busy flag and reduces the host->can_queue if the2931 * cmd has not been completed within the timeout period.2932 */2933static enum scsi_timeout_action megasas_reset_timer(struct scsi_cmnd *scmd)2934{2935 struct megasas_instance *instance;2936 unsigned long flags;2937 2938 if (time_after(jiffies, scmd->jiffies_at_alloc +2939 (scmd_timeout * 2) * HZ)) {2940 return SCSI_EH_NOT_HANDLED;2941 }2942 2943 instance = (struct megasas_instance *)scmd->device->host->hostdata;2944 if (!(instance->flag & MEGASAS_FW_BUSY)) {2945 /* FW is busy, throttle IO */2946 spin_lock_irqsave(instance->host->host_lock, flags);2947 2948 instance->host->can_queue = instance->throttlequeuedepth;2949 instance->last_time = jiffies;2950 instance->flag |= MEGASAS_FW_BUSY;2951 2952 spin_unlock_irqrestore(instance->host->host_lock, flags);2953 }2954 return SCSI_EH_RESET_TIMER;2955}2956 2957/**2958 * megasas_dump - This function will print hexdump of provided buffer.2959 * @buf: Buffer to be dumped2960 * @sz: Size in bytes2961 * @format: Different formats of dumping e.g. format=n will2962 * cause only 'n' 32 bit words to be dumped in a single2963 * line.2964 */2965inline void2966megasas_dump(void *buf, int sz, int format)2967{2968 int i;2969 __le32 *buf_loc = (__le32 *)buf;2970 2971 for (i = 0; i < (sz / sizeof(__le32)); i++) {2972 if ((i % format) == 0) {2973 if (i != 0)2974 printk(KERN_CONT "\n");2975 printk(KERN_CONT "%08x: ", (i * 4));2976 }2977 printk(KERN_CONT "%08x ", le32_to_cpu(buf_loc[i]));2978 }2979 printk(KERN_CONT "\n");2980}2981 2982/**2983 * megasas_dump_reg_set - This function will print hexdump of register set2984 * @reg_set: Register set to be dumped2985 */2986inline void2987megasas_dump_reg_set(void __iomem *reg_set)2988{2989 unsigned int i, sz = 256;2990 u32 __iomem *reg = (u32 __iomem *)reg_set;2991 2992 for (i = 0; i < (sz / sizeof(u32)); i++)2993 printk("%08x: %08x\n", (i * 4), readl(®[i]));2994}2995 2996/**2997 * megasas_dump_fusion_io - This function will print key details2998 * of SCSI IO2999 * @scmd: SCSI command pointer of SCSI IO3000 */3001void3002megasas_dump_fusion_io(struct scsi_cmnd *scmd)3003{3004 struct megasas_cmd_fusion *cmd = megasas_priv(scmd)->cmd_priv;3005 union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;3006 struct megasas_instance *instance;3007 3008 instance = (struct megasas_instance *)scmd->device->host->hostdata;3009 3010 scmd_printk(KERN_INFO, scmd,3011 "scmd: (0x%p) retries: 0x%x allowed: 0x%x\n",3012 scmd, scmd->retries, scmd->allowed);3013 scsi_print_command(scmd);3014 3015 if (cmd) {3016 req_desc = (union MEGASAS_REQUEST_DESCRIPTOR_UNION *)cmd->request_desc;3017 scmd_printk(KERN_INFO, scmd, "Request descriptor details:\n");3018 scmd_printk(KERN_INFO, scmd,3019 "RequestFlags:0x%x MSIxIndex:0x%x SMID:0x%x LMID:0x%x DevHandle:0x%x\n",3020 req_desc->SCSIIO.RequestFlags,3021 req_desc->SCSIIO.MSIxIndex, req_desc->SCSIIO.SMID,3022 req_desc->SCSIIO.LMID, req_desc->SCSIIO.DevHandle);3023 3024 printk(KERN_INFO "IO request frame:\n");3025 megasas_dump(cmd->io_request,3026 MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE, 8);3027 printk(KERN_INFO "Chain frame:\n");3028 megasas_dump(cmd->sg_frame,3029 instance->max_chain_frame_sz, 8);3030 }3031 3032}3033 3034/*3035 * megasas_dump_sys_regs - This function will dump system registers through3036 * sysfs.3037 * @reg_set: Pointer to System register set.3038 * @buf: Buffer to which output is to be written.3039 * @return: Number of bytes written to buffer.3040 */3041static inline ssize_t3042megasas_dump_sys_regs(void __iomem *reg_set, char *buf)3043{3044 unsigned int i, sz = 256;3045 int bytes_wrote = 0;3046 char *loc = (char *)buf;3047 u32 __iomem *reg = (u32 __iomem *)reg_set;3048 3049 for (i = 0; i < sz / sizeof(u32); i++) {3050 bytes_wrote += scnprintf(loc + bytes_wrote,3051 PAGE_SIZE - bytes_wrote,3052 "%08x: %08x\n", (i * 4),3053 readl(®[i]));3054 }3055 return bytes_wrote;3056}3057 3058/**3059 * megasas_reset_bus_host - Bus & host reset handler entry point3060 * @scmd: Mid-layer SCSI command3061 */3062static int megasas_reset_bus_host(struct scsi_cmnd *scmd)3063{3064 int ret;3065 struct megasas_instance *instance;3066 3067 instance = (struct megasas_instance *)scmd->device->host->hostdata;3068 3069 scmd_printk(KERN_INFO, scmd,3070 "OCR is requested due to IO timeout!!\n");3071 3072 scmd_printk(KERN_INFO, scmd,3073 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n",3074 scmd->device->host->shost_state,3075 scsi_host_busy(scmd->device->host),3076 atomic_read(&instance->fw_outstanding));3077 /*3078 * First wait for all commands to complete3079 */3080 if (instance->adapter_type == MFI_SERIES) {3081 ret = megasas_generic_reset(scmd);3082 } else {3083 megasas_dump_fusion_io(scmd);3084 ret = megasas_reset_fusion(scmd->device->host,3085 SCSIIO_TIMEOUT_OCR);3086 }3087 3088 return ret;3089}3090 3091/**3092 * megasas_task_abort - Issues task abort request to firmware3093 * (supported only for fusion adapters)3094 * @scmd: SCSI command pointer3095 */3096static int megasas_task_abort(struct scsi_cmnd *scmd)3097{3098 int ret;3099 struct megasas_instance *instance;3100 3101 instance = (struct megasas_instance *)scmd->device->host->hostdata;3102 3103 if (instance->adapter_type != MFI_SERIES)3104 ret = megasas_task_abort_fusion(scmd);3105 else {3106 sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n");3107 ret = FAILED;3108 }3109 3110 return ret;3111}3112 3113/**3114 * megasas_reset_target: Issues target reset request to firmware3115 * (supported only for fusion adapters)3116 * @scmd: SCSI command pointer3117 */3118static int megasas_reset_target(struct scsi_cmnd *scmd)3119{3120 int ret;3121 struct megasas_instance *instance;3122 3123 instance = (struct megasas_instance *)scmd->device->host->hostdata;3124 3125 if (instance->adapter_type != MFI_SERIES)3126 ret = megasas_reset_target_fusion(scmd);3127 else {3128 sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n");3129 ret = FAILED;3130 }3131 3132 return ret;3133}3134 3135/**3136 * megasas_bios_param - Returns disk geometry for a disk3137 * @sdev: device handle3138 * @bdev: block device3139 * @capacity: drive capacity3140 * @geom: geometry parameters3141 */3142static int3143megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev,3144 sector_t capacity, int geom[])3145{3146 int heads;3147 int sectors;3148 sector_t cylinders;3149 unsigned long tmp;3150 3151 /* Default heads (64) & sectors (32) */3152 heads = 64;3153 sectors = 32;3154 3155 tmp = heads * sectors;3156 cylinders = capacity;3157 3158 sector_div(cylinders, tmp);3159 3160 /*3161 * Handle extended translation size for logical drives > 1Gb3162 */3163 3164 if (capacity >= 0x200000) {3165 heads = 255;3166 sectors = 63;3167 tmp = heads*sectors;3168 cylinders = capacity;3169 sector_div(cylinders, tmp);3170 }3171 3172 geom[0] = heads;3173 geom[1] = sectors;3174 geom[2] = cylinders;3175 3176 return 0;3177}3178 3179static void megasas_map_queues(struct Scsi_Host *shost)3180{3181 struct megasas_instance *instance;3182 int qoff = 0, offset;3183 struct blk_mq_queue_map *map;3184 3185 instance = (struct megasas_instance *)shost->hostdata;3186 3187 if (shost->nr_hw_queues == 1)3188 return;3189 3190 offset = instance->low_latency_index_start;3191 3192 /* Setup Default hctx */3193 map = &shost->tag_set.map[HCTX_TYPE_DEFAULT];3194 map->nr_queues = instance->msix_vectors - offset;3195 map->queue_offset = 0;3196 blk_mq_pci_map_queues(map, instance->pdev, offset);3197 qoff += map->nr_queues;3198 offset += map->nr_queues;3199 3200 /* we never use READ queue, so can't cheat blk-mq */3201 shost->tag_set.map[HCTX_TYPE_READ].nr_queues = 0;3202 3203 /* Setup Poll hctx */3204 map = &shost->tag_set.map[HCTX_TYPE_POLL];3205 map->nr_queues = instance->iopoll_q_count;3206 if (map->nr_queues) {3207 /*3208 * The poll queue(s) doesn't have an IRQ (and hence IRQ3209 * affinity), so use the regular blk-mq cpu mapping3210 */3211 map->queue_offset = qoff;3212 blk_mq_map_queues(map);3213 }3214}3215 3216static void megasas_aen_polling(struct work_struct *work);3217 3218/**3219 * megasas_service_aen - Processes an event notification3220 * @instance: Adapter soft state3221 * @cmd: AEN command completed by the ISR3222 *3223 * For AEN, driver sends a command down to FW that is held by the FW till an3224 * event occurs. When an event of interest occurs, FW completes the command3225 * that it was previously holding.3226 *3227 * This routines sends SIGIO signal to processes that have registered with the3228 * driver for AEN.3229 */3230static void3231megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd)3232{3233 unsigned long flags;3234 3235 /*3236 * Don't signal app if it is just an aborted previously registered aen3237 */3238 if ((!cmd->abort_aen) && (instance->unload == 0)) {3239 spin_lock_irqsave(&poll_aen_lock, flags);3240 megasas_poll_wait_aen = 1;3241 spin_unlock_irqrestore(&poll_aen_lock, flags);3242 wake_up(&megasas_poll_wait);3243 kill_fasync(&megasas_async_queue, SIGIO, POLL_IN);3244 }3245 else3246 cmd->abort_aen = 0;3247 3248 instance->aen_cmd = NULL;3249 3250 megasas_return_cmd(instance, cmd);3251 3252 if ((instance->unload == 0) &&3253 ((instance->issuepend_done == 1))) {3254 struct megasas_aen_event *ev;3255 3256 ev = kzalloc(sizeof(*ev), GFP_ATOMIC);3257 if (!ev) {3258 dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n");3259 } else {3260 ev->instance = instance;3261 instance->ev = ev;3262 INIT_DELAYED_WORK(&ev->hotplug_work,3263 megasas_aen_polling);3264 schedule_delayed_work(&ev->hotplug_work, 0);3265 }3266 }3267}3268 3269static ssize_t3270fw_crash_buffer_store(struct device *cdev,3271 struct device_attribute *attr, const char *buf, size_t count)3272{3273 struct Scsi_Host *shost = class_to_shost(cdev);3274 struct megasas_instance *instance =3275 (struct megasas_instance *) shost->hostdata;3276 int val = 0;3277 3278 if (kstrtoint(buf, 0, &val) != 0)3279 return -EINVAL;3280 3281 mutex_lock(&instance->crashdump_lock);3282 instance->fw_crash_buffer_offset = val;3283 mutex_unlock(&instance->crashdump_lock);3284 return strlen(buf);3285}3286 3287static ssize_t3288fw_crash_buffer_show(struct device *cdev,3289 struct device_attribute *attr, char *buf)3290{3291 struct Scsi_Host *shost = class_to_shost(cdev);3292 struct megasas_instance *instance =3293 (struct megasas_instance *) shost->hostdata;3294 u32 size;3295 unsigned long dmachunk = CRASH_DMA_BUF_SIZE;3296 unsigned long chunk_left_bytes;3297 unsigned long src_addr;3298 u32 buff_offset;3299 3300 mutex_lock(&instance->crashdump_lock);3301 buff_offset = instance->fw_crash_buffer_offset;3302 if (!instance->crash_dump_buf ||3303 !((instance->fw_crash_state == AVAILABLE) ||3304 (instance->fw_crash_state == COPYING))) {3305 dev_err(&instance->pdev->dev,3306 "Firmware crash dump is not available\n");3307 mutex_unlock(&instance->crashdump_lock);3308 return -EINVAL;3309 }3310 3311 if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) {3312 dev_err(&instance->pdev->dev,3313 "Firmware crash dump offset is out of range\n");3314 mutex_unlock(&instance->crashdump_lock);3315 return 0;3316 }3317 3318 size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;3319 chunk_left_bytes = dmachunk - (buff_offset % dmachunk);3320 size = (size > chunk_left_bytes) ? chunk_left_bytes : size;3321 size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;3322 3323 src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +3324 (buff_offset % dmachunk);3325 memcpy(buf, (void *)src_addr, size);3326 mutex_unlock(&instance->crashdump_lock);3327 3328 return size;3329}3330 3331static ssize_t3332fw_crash_buffer_size_show(struct device *cdev,3333 struct device_attribute *attr, char *buf)3334{3335 struct Scsi_Host *shost = class_to_shost(cdev);3336 struct megasas_instance *instance =3337 (struct megasas_instance *) shost->hostdata;3338 3339 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)3340 ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE);3341}3342 3343static ssize_t3344fw_crash_state_store(struct device *cdev,3345 struct device_attribute *attr, const char *buf, size_t count)3346{3347 struct Scsi_Host *shost = class_to_shost(cdev);3348 struct megasas_instance *instance =3349 (struct megasas_instance *) shost->hostdata;3350 int val = 0;3351 3352 if (kstrtoint(buf, 0, &val) != 0)3353 return -EINVAL;3354 3355 if ((val <= AVAILABLE || val > COPY_ERROR)) {3356 dev_err(&instance->pdev->dev, "application updates invalid "3357 "firmware crash state\n");3358 return -EINVAL;3359 }3360 3361 instance->fw_crash_state = val;3362 3363 if ((val == COPIED) || (val == COPY_ERROR)) {3364 mutex_lock(&instance->crashdump_lock);3365 megasas_free_host_crash_buffer(instance);3366 mutex_unlock(&instance->crashdump_lock);3367 if (val == COPY_ERROR)3368 dev_info(&instance->pdev->dev, "application failed to "3369 "copy Firmware crash dump\n");3370 else3371 dev_info(&instance->pdev->dev, "Firmware crash dump "3372 "copied successfully\n");3373 }3374 return strlen(buf);3375}3376 3377static ssize_t3378fw_crash_state_show(struct device *cdev,3379 struct device_attribute *attr, 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, "%d\n", instance->fw_crash_state);3386}3387 3388static ssize_t3389page_size_show(struct device *cdev,3390 struct device_attribute *attr, char *buf)3391{3392 return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1);3393}3394 3395static ssize_t3396ldio_outstanding_show(struct device *cdev, struct device_attribute *attr,3397 char *buf)3398{3399 struct Scsi_Host *shost = class_to_shost(cdev);3400 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;3401 3402 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding));3403}3404 3405static ssize_t3406fw_cmds_outstanding_show(struct device *cdev,3407 struct device_attribute *attr, char *buf)3408{3409 struct Scsi_Host *shost = class_to_shost(cdev);3410 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;3411 3412 return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->fw_outstanding));3413}3414 3415static ssize_t3416enable_sdev_max_qd_show(struct device *cdev,3417 struct device_attribute *attr, char *buf)3418{3419 struct Scsi_Host *shost = class_to_shost(cdev);3420 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;3421 3422 return snprintf(buf, PAGE_SIZE, "%d\n", instance->enable_sdev_max_qd);3423}3424 3425static ssize_t3426enable_sdev_max_qd_store(struct device *cdev,3427 struct device_attribute *attr, const char *buf, size_t count)3428{3429 struct Scsi_Host *shost = class_to_shost(cdev);3430 struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata;3431 u32 val = 0;3432 bool is_target_prop;3433 int ret_target_prop = DCMD_FAILED;3434 struct scsi_device *sdev;3435 3436 if (kstrtou32(buf, 0, &val) != 0) {3437 pr_err("megasas: could not set enable_sdev_max_qd\n");3438 return -EINVAL;3439 }3440 3441 mutex_lock(&instance->reset_mutex);3442 if (val)3443 instance->enable_sdev_max_qd = true;3444 else3445 instance->enable_sdev_max_qd = false;3446 3447 shost_for_each_device(sdev, shost) {3448 ret_target_prop = megasas_get_target_prop(instance, sdev);3449 is_target_prop = (ret_target_prop == DCMD_SUCCESS) ? true : false;3450 megasas_set_fw_assisted_qd(sdev, is_target_prop);3451 }3452 mutex_unlock(&instance->reset_mutex);3453 3454 return strlen(buf);3455}3456 3457static ssize_t3458dump_system_regs_show(struct device *cdev,3459 struct device_attribute *attr, char *buf)3460{3461 struct Scsi_Host *shost = class_to_shost(cdev);3462 struct megasas_instance *instance =3463 (struct megasas_instance *)shost->hostdata;3464 3465 return megasas_dump_sys_regs(instance->reg_set, buf);3466}3467 3468static ssize_t3469raid_map_id_show(struct device *cdev, struct device_attribute *attr,3470 char *buf)3471{3472 struct Scsi_Host *shost = class_to_shost(cdev);3473 struct megasas_instance *instance =3474 (struct megasas_instance *)shost->hostdata;3475 3476 return snprintf(buf, PAGE_SIZE, "%ld\n",3477 (unsigned long)instance->map_id);3478}3479 3480static DEVICE_ATTR_RW(fw_crash_buffer);3481static DEVICE_ATTR_RO(fw_crash_buffer_size);3482static DEVICE_ATTR_RW(fw_crash_state);3483static DEVICE_ATTR_RO(page_size);3484static DEVICE_ATTR_RO(ldio_outstanding);3485static DEVICE_ATTR_RO(fw_cmds_outstanding);3486static DEVICE_ATTR_RW(enable_sdev_max_qd);3487static DEVICE_ATTR_RO(dump_system_regs);3488static DEVICE_ATTR_RO(raid_map_id);3489 3490static struct attribute *megaraid_host_attrs[] = {3491 &dev_attr_fw_crash_buffer_size.attr,3492 &dev_attr_fw_crash_buffer.attr,3493 &dev_attr_fw_crash_state.attr,3494 &dev_attr_page_size.attr,3495 &dev_attr_ldio_outstanding.attr,3496 &dev_attr_fw_cmds_outstanding.attr,3497 &dev_attr_enable_sdev_max_qd.attr,3498 &dev_attr_dump_system_regs.attr,3499 &dev_attr_raid_map_id.attr,3500 NULL,3501};3502 3503ATTRIBUTE_GROUPS(megaraid_host);3504 3505/*3506 * Scsi host template for megaraid_sas driver3507 */3508static const struct scsi_host_template megasas_template = {3509 3510 .module = THIS_MODULE,3511 .name = "Avago SAS based MegaRAID driver",3512 .proc_name = "megaraid_sas",3513 .device_configure = megasas_device_configure,3514 .slave_alloc = megasas_slave_alloc,3515 .slave_destroy = megasas_slave_destroy,3516 .queuecommand = megasas_queue_command,3517 .eh_target_reset_handler = megasas_reset_target,3518 .eh_abort_handler = megasas_task_abort,3519 .eh_host_reset_handler = megasas_reset_bus_host,3520 .eh_timed_out = megasas_reset_timer,3521 .shost_groups = megaraid_host_groups,3522 .bios_param = megasas_bios_param,3523 .map_queues = megasas_map_queues,3524 .mq_poll = megasas_blk_mq_poll,3525 .change_queue_depth = scsi_change_queue_depth,3526 .max_segment_size = 0xffffffff,3527 .cmd_size = sizeof(struct megasas_cmd_priv),3528};3529 3530/**3531 * megasas_complete_int_cmd - Completes an internal command3532 * @instance: Adapter soft state3533 * @cmd: Command to be completed3534 *3535 * The megasas_issue_blocked_cmd() function waits for a command to complete3536 * after it issues a command. This function wakes up that waiting routine by3537 * calling wake_up() on the wait queue.3538 */3539static void3540megasas_complete_int_cmd(struct megasas_instance *instance,3541 struct megasas_cmd *cmd)3542{3543 if (cmd->cmd_status_drv == DCMD_INIT)3544 cmd->cmd_status_drv =3545 (cmd->frame->io.cmd_status == MFI_STAT_OK) ?3546 DCMD_SUCCESS : DCMD_FAILED;3547 3548 wake_up(&instance->int_cmd_wait_q);3549}3550 3551/**3552 * megasas_complete_abort - Completes aborting a command3553 * @instance: Adapter soft state3554 * @cmd: Cmd that was issued to abort another cmd3555 *3556 * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q3557 * after it issues an abort on a previously issued command. This function3558 * wakes up all functions waiting on the same wait queue.3559 */3560static void3561megasas_complete_abort(struct megasas_instance *instance,3562 struct megasas_cmd *cmd)3563{3564 if (cmd->sync_cmd) {3565 cmd->sync_cmd = 0;3566 cmd->cmd_status_drv = DCMD_SUCCESS;3567 wake_up(&instance->abort_cmd_wait_q);3568 }3569}3570 3571static void3572megasas_set_ld_removed_by_fw(struct megasas_instance *instance)3573{3574 uint i;3575 3576 for (i = 0; (i < MEGASAS_MAX_LD_IDS); i++) {3577 if (instance->ld_ids_prev[i] != 0xff &&3578 instance->ld_ids_from_raidmap[i] == 0xff) {3579 if (megasas_dbg_lvl & LD_PD_DEBUG)3580 dev_info(&instance->pdev->dev,3581 "LD target ID %d removed from RAID map\n", i);3582 instance->ld_tgtid_status[i] = LD_TARGET_ID_DELETED;3583 }3584 }3585}3586 3587/**3588 * megasas_complete_cmd - Completes a command3589 * @instance: Adapter soft state3590 * @cmd: Command to be completed3591 * @alt_status: If non-zero, use this value as status to3592 * SCSI mid-layer instead of the value returned3593 * by the FW. This should be used if caller wants3594 * an alternate status (as in the case of aborted3595 * commands)3596 */3597void3598megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,3599 u8 alt_status)3600{3601 int exception = 0;3602 struct megasas_header *hdr = &cmd->frame->hdr;3603 unsigned long flags;3604 struct fusion_context *fusion = instance->ctrl_context;3605 u32 opcode, status;3606 3607 /* flag for the retry reset */3608 cmd->retry_for_fw_reset = 0;3609 3610 if (cmd->scmd)3611 megasas_priv(cmd->scmd)->cmd_priv = NULL;3612 3613 switch (hdr->cmd) {3614 case MFI_CMD_INVALID:3615 /* Some older 1068 controller FW may keep a pended3616 MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel3617 when booting the kdump kernel. Ignore this command to3618 prevent a kernel panic on shutdown of the kdump kernel. */3619 dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command "3620 "completed\n");3621 dev_warn(&instance->pdev->dev, "If you have a controller "3622 "other than PERC5, please upgrade your firmware\n");3623 break;3624 case MFI_CMD_PD_SCSI_IO:3625 case MFI_CMD_LD_SCSI_IO:3626 3627 /*3628 * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been3629 * issued either through an IO path or an IOCTL path. If it3630 * was via IOCTL, we will send it to internal completion.3631 */3632 if (cmd->sync_cmd) {3633 cmd->sync_cmd = 0;3634 megasas_complete_int_cmd(instance, cmd);3635 break;3636 }3637 fallthrough;3638 3639 case MFI_CMD_LD_READ:3640 case MFI_CMD_LD_WRITE:3641 3642 if (alt_status) {3643 cmd->scmd->result = alt_status << 16;3644 exception = 1;3645 }3646 3647 if (exception) {3648 3649 atomic_dec(&instance->fw_outstanding);3650 3651 scsi_dma_unmap(cmd->scmd);3652 scsi_done(cmd->scmd);3653 megasas_return_cmd(instance, cmd);3654 3655 break;3656 }3657 3658 switch (hdr->cmd_status) {3659 3660 case MFI_STAT_OK:3661 cmd->scmd->result = DID_OK << 16;3662 break;3663 3664 case MFI_STAT_SCSI_IO_FAILED:3665 case MFI_STAT_LD_INIT_IN_PROGRESS:3666 cmd->scmd->result =3667 (DID_ERROR << 16) | hdr->scsi_status;3668 break;3669 3670 case MFI_STAT_SCSI_DONE_WITH_ERROR:3671 3672 cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status;3673 3674 if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) {3675 memset(cmd->scmd->sense_buffer, 0,3676 SCSI_SENSE_BUFFERSIZE);3677 memcpy(cmd->scmd->sense_buffer, cmd->sense,3678 hdr->sense_len);3679 }3680 3681 break;3682 3683 case MFI_STAT_LD_OFFLINE:3684 case MFI_STAT_DEVICE_NOT_FOUND:3685 cmd->scmd->result = DID_BAD_TARGET << 16;3686 break;3687 3688 default:3689 dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n",3690 hdr->cmd_status);3691 cmd->scmd->result = DID_ERROR << 16;3692 break;3693 }3694 3695 atomic_dec(&instance->fw_outstanding);3696 3697 scsi_dma_unmap(cmd->scmd);3698 scsi_done(cmd->scmd);3699 megasas_return_cmd(instance, cmd);3700 3701 break;3702 3703 case MFI_CMD_SMP:3704 case MFI_CMD_STP:3705 case MFI_CMD_NVME:3706 case MFI_CMD_TOOLBOX:3707 megasas_complete_int_cmd(instance, cmd);3708 break;3709 3710 case MFI_CMD_DCMD:3711 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);3712 /* Check for LD map update */3713 if ((opcode == MR_DCMD_LD_MAP_GET_INFO)3714 && (cmd->frame->dcmd.mbox.b[1] == 1)) {3715 fusion->fast_path_io = 0;3716 spin_lock_irqsave(instance->host->host_lock, flags);3717 status = cmd->frame->hdr.cmd_status;3718 instance->map_update_cmd = NULL;3719 if (status != MFI_STAT_OK) {3720 if (status != MFI_STAT_NOT_FOUND)3721 dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n",3722 cmd->frame->hdr.cmd_status);3723 else {3724 megasas_return_cmd(instance, cmd);3725 spin_unlock_irqrestore(3726 instance->host->host_lock,3727 flags);3728 break;3729 }3730 }3731 3732 megasas_return_cmd(instance, cmd);3733 3734 /*3735 * Set fast path IO to ZERO.3736 * Validate Map will set proper value.3737 * Meanwhile all IOs will go as LD IO.3738 */3739 if (status == MFI_STAT_OK &&3740 (MR_ValidateMapInfo(instance, (instance->map_id + 1)))) {3741 instance->map_id++;3742 fusion->fast_path_io = 1;3743 } else {3744 fusion->fast_path_io = 0;3745 }3746 3747 if (instance->adapter_type >= INVADER_SERIES)3748 megasas_set_ld_removed_by_fw(instance);3749 3750 megasas_sync_map_info(instance);3751 spin_unlock_irqrestore(instance->host->host_lock,3752 flags);3753 3754 break;3755 }3756 if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO ||3757 opcode == MR_DCMD_CTRL_EVENT_GET) {3758 spin_lock_irqsave(&poll_aen_lock, flags);3759 megasas_poll_wait_aen = 0;3760 spin_unlock_irqrestore(&poll_aen_lock, flags);3761 }3762 3763 /* FW has an updated PD sequence */3764 if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) &&3765 (cmd->frame->dcmd.mbox.b[0] == 1)) {3766 3767 spin_lock_irqsave(instance->host->host_lock, flags);3768 status = cmd->frame->hdr.cmd_status;3769 instance->jbod_seq_cmd = NULL;3770 megasas_return_cmd(instance, cmd);3771 3772 if (status == MFI_STAT_OK) {3773 instance->pd_seq_map_id++;3774 /* Re-register a pd sync seq num cmd */3775 if (megasas_sync_pd_seq_num(instance, true))3776 instance->use_seqnum_jbod_fp = false;3777 } else3778 instance->use_seqnum_jbod_fp = false;3779 3780 spin_unlock_irqrestore(instance->host->host_lock, flags);3781 break;3782 }3783 3784 /*3785 * See if got an event notification3786 */3787 if (opcode == MR_DCMD_CTRL_EVENT_WAIT)3788 megasas_service_aen(instance, cmd);3789 else3790 megasas_complete_int_cmd(instance, cmd);3791 3792 break;3793 3794 case MFI_CMD_ABORT:3795 /*3796 * Cmd issued to abort another cmd returned3797 */3798 megasas_complete_abort(instance, cmd);3799 break;3800 3801 default:3802 dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n",3803 hdr->cmd);3804 megasas_complete_int_cmd(instance, cmd);3805 break;3806 }3807}3808 3809/**3810 * megasas_issue_pending_cmds_again - issue all pending cmds3811 * in FW again because of the fw reset3812 * @instance: Adapter soft state3813 */3814static inline void3815megasas_issue_pending_cmds_again(struct megasas_instance *instance)3816{3817 struct megasas_cmd *cmd;3818 struct list_head clist_local;3819 union megasas_evt_class_locale class_locale;3820 unsigned long flags;3821 u32 seq_num;3822 3823 INIT_LIST_HEAD(&clist_local);3824 spin_lock_irqsave(&instance->hba_lock, flags);3825 list_splice_init(&instance->internal_reset_pending_q, &clist_local);3826 spin_unlock_irqrestore(&instance->hba_lock, flags);3827 3828 while (!list_empty(&clist_local)) {3829 cmd = list_entry((&clist_local)->next,3830 struct megasas_cmd, list);3831 list_del_init(&cmd->list);3832 3833 if (cmd->sync_cmd || cmd->scmd) {3834 dev_notice(&instance->pdev->dev, "command %p, %p:%d"3835 "detected to be pending while HBA reset\n",3836 cmd, cmd->scmd, cmd->sync_cmd);3837 3838 cmd->retry_for_fw_reset++;3839 3840 if (cmd->retry_for_fw_reset == 3) {3841 dev_notice(&instance->pdev->dev, "cmd %p, %p:%d"3842 "was tried multiple times during reset."3843 "Shutting down the HBA\n",3844 cmd, cmd->scmd, cmd->sync_cmd);3845 instance->instancet->disable_intr(instance);3846 atomic_set(&instance->fw_reset_no_pci_access, 1);3847 megaraid_sas_kill_hba(instance);3848 return;3849 }3850 }3851 3852 if (cmd->sync_cmd == 1) {3853 if (cmd->scmd) {3854 dev_notice(&instance->pdev->dev, "unexpected"3855 "cmd attached to internal command!\n");3856 }3857 dev_notice(&instance->pdev->dev, "%p synchronous cmd"3858 "on the internal reset queue,"3859 "issue it again.\n", cmd);3860 cmd->cmd_status_drv = DCMD_INIT;3861 instance->instancet->fire_cmd(instance,3862 cmd->frame_phys_addr,3863 0, instance->reg_set);3864 } else if (cmd->scmd) {3865 dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]"3866 "detected on the internal queue, issue again.\n",3867 cmd, cmd->scmd->cmnd[0]);3868 3869 atomic_inc(&instance->fw_outstanding);3870 instance->instancet->fire_cmd(instance,3871 cmd->frame_phys_addr,3872 cmd->frame_count-1, instance->reg_set);3873 } else {3874 dev_notice(&instance->pdev->dev, "%p unexpected cmd on the"3875 "internal reset defer list while re-issue!!\n",3876 cmd);3877 }3878 }3879 3880 if (instance->aen_cmd) {3881 dev_notice(&instance->pdev->dev, "aen_cmd in def process\n");3882 megasas_return_cmd(instance, instance->aen_cmd);3883 3884 instance->aen_cmd = NULL;3885 }3886 3887 /*3888 * Initiate AEN (Asynchronous Event Notification)3889 */3890 seq_num = instance->last_seq_num;3891 class_locale.members.reserved = 0;3892 class_locale.members.locale = MR_EVT_LOCALE_ALL;3893 class_locale.members.class = MR_EVT_CLASS_DEBUG;3894 3895 megasas_register_aen(instance, seq_num, class_locale.word);3896}3897 3898/*3899 * Move the internal reset pending commands to a deferred queue.3900 *3901 * We move the commands pending at internal reset time to a3902 * pending queue. This queue would be flushed after successful3903 * completion of the internal reset sequence. if the internal reset3904 * did not complete in time, the kernel reset handler would flush3905 * these commands.3906 */3907static void3908megasas_internal_reset_defer_cmds(struct megasas_instance *instance)3909{3910 struct megasas_cmd *cmd;3911 int i;3912 u16 max_cmd = instance->max_fw_cmds;3913 u32 defer_index;3914 unsigned long flags;3915 3916 defer_index = 0;3917 spin_lock_irqsave(&instance->mfi_pool_lock, flags);3918 for (i = 0; i < max_cmd; i++) {3919 cmd = instance->cmd_list[i];3920 if (cmd->sync_cmd == 1 || cmd->scmd) {3921 dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p"3922 "on the defer queue as internal\n",3923 defer_index, cmd, cmd->sync_cmd, cmd->scmd);3924 3925 if (!list_empty(&cmd->list)) {3926 dev_notice(&instance->pdev->dev, "ERROR while"3927 " moving this cmd:%p, %d %p, it was"3928 "discovered on some list?\n",3929 cmd, cmd->sync_cmd, cmd->scmd);3930 3931 list_del_init(&cmd->list);3932 }3933 defer_index++;3934 list_add_tail(&cmd->list,3935 &instance->internal_reset_pending_q);3936 }3937 }3938 spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);3939}3940 3941 3942static void3943process_fw_state_change_wq(struct work_struct *work)3944{3945 struct megasas_instance *instance =3946 container_of(work, struct megasas_instance, work_init);3947 u32 wait;3948 unsigned long flags;3949 3950 if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) {3951 dev_notice(&instance->pdev->dev, "error, recovery st %x\n",3952 atomic_read(&instance->adprecovery));3953 return ;3954 }3955 3956 if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) {3957 dev_notice(&instance->pdev->dev, "FW detected to be in fault"3958 "state, restarting it...\n");3959 3960 instance->instancet->disable_intr(instance);3961 atomic_set(&instance->fw_outstanding, 0);3962 3963 atomic_set(&instance->fw_reset_no_pci_access, 1);3964 instance->instancet->adp_reset(instance, instance->reg_set);3965 atomic_set(&instance->fw_reset_no_pci_access, 0);3966 3967 dev_notice(&instance->pdev->dev, "FW restarted successfully,"3968 "initiating next stage...\n");3969 3970 dev_notice(&instance->pdev->dev, "HBA recovery state machine,"3971 "state 2 starting...\n");3972 3973 /* waiting for about 20 second before start the second init */3974 for (wait = 0; wait < 30; wait++) {3975 msleep(1000);3976 }3977 3978 if (megasas_transition_to_ready(instance, 1)) {3979 dev_notice(&instance->pdev->dev, "adapter not ready\n");3980 3981 atomic_set(&instance->fw_reset_no_pci_access, 1);3982 megaraid_sas_kill_hba(instance);3983 return ;3984 }3985 3986 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||3987 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||3988 (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)3989 ) {3990 *instance->consumer = *instance->producer;3991 } else {3992 *instance->consumer = 0;3993 *instance->producer = 0;3994 }3995 3996 megasas_issue_init_mfi(instance);3997 3998 spin_lock_irqsave(&instance->hba_lock, flags);3999 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);4000 spin_unlock_irqrestore(&instance->hba_lock, flags);4001 instance->instancet->enable_intr(instance);4002 4003 megasas_issue_pending_cmds_again(instance);4004 instance->issuepend_done = 1;4005 }4006}4007 4008/**4009 * megasas_deplete_reply_queue - Processes all completed commands4010 * @instance: Adapter soft state4011 * @alt_status: Alternate status to be returned to4012 * SCSI mid-layer instead of the status4013 * returned by the FW4014 * Note: this must be called with hba lock held4015 */4016static int4017megasas_deplete_reply_queue(struct megasas_instance *instance,4018 u8 alt_status)4019{4020 u32 mfiStatus;4021 u32 fw_state;4022 4023 if (instance->instancet->check_reset(instance, instance->reg_set) == 1)4024 return IRQ_HANDLED;4025 4026 mfiStatus = instance->instancet->clear_intr(instance);4027 if (mfiStatus == 0) {4028 /* Hardware may not set outbound_intr_status in MSI-X mode */4029 if (!instance->msix_vectors)4030 return IRQ_NONE;4031 }4032 4033 instance->mfiStatus = mfiStatus;4034 4035 if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) {4036 fw_state = instance->instancet->read_fw_status_reg(4037 instance) & MFI_STATE_MASK;4038 4039 if (fw_state != MFI_STATE_FAULT) {4040 dev_notice(&instance->pdev->dev, "fw state:%x\n",4041 fw_state);4042 }4043 4044 if ((fw_state == MFI_STATE_FAULT) &&4045 (instance->disableOnlineCtrlReset == 0)) {4046 dev_notice(&instance->pdev->dev, "wait adp restart\n");4047 4048 if ((instance->pdev->device ==4049 PCI_DEVICE_ID_LSI_SAS1064R) ||4050 (instance->pdev->device ==4051 PCI_DEVICE_ID_DELL_PERC5) ||4052 (instance->pdev->device ==4053 PCI_DEVICE_ID_LSI_VERDE_ZCR)) {4054 4055 *instance->consumer =4056 cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN);4057 }4058 4059 4060 instance->instancet->disable_intr(instance);4061 atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT);4062 instance->issuepend_done = 0;4063 4064 atomic_set(&instance->fw_outstanding, 0);4065 megasas_internal_reset_defer_cmds(instance);4066 4067 dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n",4068 fw_state, atomic_read(&instance->adprecovery));4069 4070 schedule_work(&instance->work_init);4071 return IRQ_HANDLED;4072 4073 } else {4074 dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n",4075 fw_state, instance->disableOnlineCtrlReset);4076 }4077 }4078 4079 tasklet_schedule(&instance->isr_tasklet);4080 return IRQ_HANDLED;4081}4082 4083/**4084 * megasas_isr - isr entry point4085 * @irq: IRQ number4086 * @devp: IRQ context address4087 */4088static irqreturn_t megasas_isr(int irq, void *devp)4089{4090 struct megasas_irq_context *irq_context = devp;4091 struct megasas_instance *instance = irq_context->instance;4092 unsigned long flags;4093 irqreturn_t rc;4094 4095 if (atomic_read(&instance->fw_reset_no_pci_access))4096 return IRQ_HANDLED;4097 4098 spin_lock_irqsave(&instance->hba_lock, flags);4099 rc = megasas_deplete_reply_queue(instance, DID_OK);4100 spin_unlock_irqrestore(&instance->hba_lock, flags);4101 4102 return rc;4103}4104 4105/**4106 * megasas_transition_to_ready - Move the FW to READY state4107 * @instance: Adapter soft state4108 * @ocr: Adapter reset state4109 *4110 * During the initialization, FW passes can potentially be in any one of4111 * several possible states. If the FW in operational, waiting-for-handshake4112 * states, driver must take steps to bring it to ready state. Otherwise, it4113 * has to wait for the ready state.4114 */4115int4116megasas_transition_to_ready(struct megasas_instance *instance, int ocr)4117{4118 int i;4119 u8 max_wait;4120 u32 fw_state;4121 u32 abs_state, curr_abs_state;4122 4123 abs_state = instance->instancet->read_fw_status_reg(instance);4124 fw_state = abs_state & MFI_STATE_MASK;4125 4126 if (fw_state != MFI_STATE_READY)4127 dev_info(&instance->pdev->dev, "Waiting for FW to come to ready"4128 " state\n");4129 4130 while (fw_state != MFI_STATE_READY) {4131 4132 switch (fw_state) {4133 4134 case MFI_STATE_FAULT:4135 dev_printk(KERN_ERR, &instance->pdev->dev,4136 "FW in FAULT state, Fault code:0x%x subcode:0x%x func:%s\n",4137 abs_state & MFI_STATE_FAULT_CODE,4138 abs_state & MFI_STATE_FAULT_SUBCODE, __func__);4139 if (ocr) {4140 max_wait = MEGASAS_RESET_WAIT_TIME;4141 break;4142 } else {4143 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");4144 megasas_dump_reg_set(instance->reg_set);4145 return -ENODEV;4146 }4147 4148 case MFI_STATE_WAIT_HANDSHAKE:4149 /*4150 * Set the CLR bit in inbound doorbell4151 */4152 if ((instance->pdev->device ==4153 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||4154 (instance->pdev->device ==4155 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||4156 (instance->adapter_type != MFI_SERIES))4157 writel(4158 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,4159 &instance->reg_set->doorbell);4160 else4161 writel(4162 MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG,4163 &instance->reg_set->inbound_doorbell);4164 4165 max_wait = MEGASAS_RESET_WAIT_TIME;4166 break;4167 4168 case MFI_STATE_BOOT_MESSAGE_PENDING:4169 if ((instance->pdev->device ==4170 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||4171 (instance->pdev->device ==4172 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||4173 (instance->adapter_type != MFI_SERIES))4174 writel(MFI_INIT_HOTPLUG,4175 &instance->reg_set->doorbell);4176 else4177 writel(MFI_INIT_HOTPLUG,4178 &instance->reg_set->inbound_doorbell);4179 4180 max_wait = MEGASAS_RESET_WAIT_TIME;4181 break;4182 4183 case MFI_STATE_OPERATIONAL:4184 /*4185 * Bring it to READY state; assuming max wait 10 secs4186 */4187 instance->instancet->disable_intr(instance);4188 if ((instance->pdev->device ==4189 PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||4190 (instance->pdev->device ==4191 PCI_DEVICE_ID_LSI_SAS0071SKINNY) ||4192 (instance->adapter_type != MFI_SERIES)) {4193 writel(MFI_RESET_FLAGS,4194 &instance->reg_set->doorbell);4195 4196 if (instance->adapter_type != MFI_SERIES) {4197 for (i = 0; i < (10 * 1000); i += 20) {4198 if (megasas_readl(4199 instance,4200 &instance->4201 reg_set->4202 doorbell) & 1)4203 msleep(20);4204 else4205 break;4206 }4207 }4208 } else4209 writel(MFI_RESET_FLAGS,4210 &instance->reg_set->inbound_doorbell);4211 4212 max_wait = MEGASAS_RESET_WAIT_TIME;4213 break;4214 4215 case MFI_STATE_UNDEFINED:4216 /*4217 * This state should not last for more than 2 seconds4218 */4219 max_wait = MEGASAS_RESET_WAIT_TIME;4220 break;4221 4222 case MFI_STATE_BB_INIT:4223 max_wait = MEGASAS_RESET_WAIT_TIME;4224 break;4225 4226 case MFI_STATE_FW_INIT:4227 max_wait = MEGASAS_RESET_WAIT_TIME;4228 break;4229 4230 case MFI_STATE_FW_INIT_2:4231 max_wait = MEGASAS_RESET_WAIT_TIME;4232 break;4233 4234 case MFI_STATE_DEVICE_SCAN:4235 max_wait = MEGASAS_RESET_WAIT_TIME;4236 break;4237 4238 case MFI_STATE_FLUSH_CACHE:4239 max_wait = MEGASAS_RESET_WAIT_TIME;4240 break;4241 4242 default:4243 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n",4244 fw_state);4245 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");4246 megasas_dump_reg_set(instance->reg_set);4247 return -ENODEV;4248 }4249 4250 /*4251 * The cur_state should not last for more than max_wait secs4252 */4253 for (i = 0; i < max_wait * 50; i++) {4254 curr_abs_state = instance->instancet->4255 read_fw_status_reg(instance);4256 4257 if (abs_state == curr_abs_state) {4258 msleep(20);4259 } else4260 break;4261 }4262 4263 /*4264 * Return error if fw_state hasn't changed after max_wait4265 */4266 if (curr_abs_state == abs_state) {4267 dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed "4268 "in %d secs\n", fw_state, max_wait);4269 dev_printk(KERN_DEBUG, &instance->pdev->dev, "System Register set:\n");4270 megasas_dump_reg_set(instance->reg_set);4271 return -ENODEV;4272 }4273 4274 abs_state = curr_abs_state;4275 fw_state = curr_abs_state & MFI_STATE_MASK;4276 }4277 dev_info(&instance->pdev->dev, "FW now in Ready state\n");4278 4279 return 0;4280}4281 4282/**4283 * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool4284 * @instance: Adapter soft state4285 */4286static void megasas_teardown_frame_pool(struct megasas_instance *instance)4287{4288 int i;4289 u16 max_cmd = instance->max_mfi_cmds;4290 struct megasas_cmd *cmd;4291 4292 if (!instance->frame_dma_pool)4293 return;4294 4295 /*4296 * Return all frames to pool4297 */4298 for (i = 0; i < max_cmd; i++) {4299 4300 cmd = instance->cmd_list[i];4301 4302 if (cmd->frame)4303 dma_pool_free(instance->frame_dma_pool, cmd->frame,4304 cmd->frame_phys_addr);4305 4306 if (cmd->sense)4307 dma_pool_free(instance->sense_dma_pool, cmd->sense,4308 cmd->sense_phys_addr);4309 }4310 4311 /*4312 * Now destroy the pool itself4313 */4314 dma_pool_destroy(instance->frame_dma_pool);4315 dma_pool_destroy(instance->sense_dma_pool);4316 4317 instance->frame_dma_pool = NULL;4318 instance->sense_dma_pool = NULL;4319}4320 4321/**4322 * megasas_create_frame_pool - Creates DMA pool for cmd frames4323 * @instance: Adapter soft state4324 *4325 * Each command packet has an embedded DMA memory buffer that is used for4326 * filling MFI frame and the SG list that immediately follows the frame. This4327 * function creates those DMA memory buffers for each command packet by using4328 * PCI pool facility.4329 */4330static int megasas_create_frame_pool(struct megasas_instance *instance)4331{4332 int i;4333 u16 max_cmd;4334 u32 frame_count;4335 struct megasas_cmd *cmd;4336 4337 max_cmd = instance->max_mfi_cmds;4338 4339 /*4340 * For MFI controllers.4341 * max_num_sge = 604342 * max_sge_sz = 16 byte (sizeof megasas_sge_skinny)4343 * Total 960 byte (15 MFI frame of 64 byte)4344 *4345 * Fusion adapter require only 3 extra frame.4346 * max_num_sge = 16 (defined as MAX_IOCTL_SGE)4347 * max_sge_sz = 12 byte (sizeof megasas_sge64)4348 * Total 192 byte (3 MFI frame of 64 byte)4349 */4350 frame_count = (instance->adapter_type == MFI_SERIES) ?4351 (15 + 1) : (3 + 1);4352 instance->mfi_frame_size = MEGAMFI_FRAME_SIZE * frame_count;4353 /*4354 * Use DMA pool facility provided by PCI layer4355 */4356 instance->frame_dma_pool = dma_pool_create("megasas frame pool",4357 &instance->pdev->dev,4358 instance->mfi_frame_size, 256, 0);4359 4360 if (!instance->frame_dma_pool) {4361 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");4362 return -ENOMEM;4363 }4364 4365 instance->sense_dma_pool = dma_pool_create("megasas sense pool",4366 &instance->pdev->dev, 128,4367 4, 0);4368 4369 if (!instance->sense_dma_pool) {4370 dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");4371 4372 dma_pool_destroy(instance->frame_dma_pool);4373 instance->frame_dma_pool = NULL;4374 4375 return -ENOMEM;4376 }4377 4378 /*4379 * Allocate and attach a frame to each of the commands in cmd_list.4380 * By making cmd->index as the context instead of the &cmd, we can4381 * always use 32bit context regardless of the architecture4382 */4383 for (i = 0; i < max_cmd; i++) {4384 4385 cmd = instance->cmd_list[i];4386 4387 cmd->frame = dma_pool_zalloc(instance->frame_dma_pool,4388 GFP_KERNEL, &cmd->frame_phys_addr);4389 4390 cmd->sense = dma_pool_alloc(instance->sense_dma_pool,4391 GFP_KERNEL, &cmd->sense_phys_addr);4392 4393 /*4394 * megasas_teardown_frame_pool() takes care of freeing4395 * whatever has been allocated4396 */4397 if (!cmd->frame || !cmd->sense) {4398 dev_printk(KERN_DEBUG, &instance->pdev->dev, "dma_pool_alloc failed\n");4399 megasas_teardown_frame_pool(instance);4400 return -ENOMEM;4401 }4402 4403 cmd->frame->io.context = cpu_to_le32(cmd->index);4404 cmd->frame->io.pad_0 = 0;4405 if ((instance->adapter_type == MFI_SERIES) && reset_devices)4406 cmd->frame->hdr.cmd = MFI_CMD_INVALID;4407 }4408 4409 return 0;4410}4411 4412/**4413 * megasas_free_cmds - Free all the cmds in the free cmd pool4414 * @instance: Adapter soft state4415 */4416void megasas_free_cmds(struct megasas_instance *instance)4417{4418 int i;4419 4420 /* First free the MFI frame pool */4421 megasas_teardown_frame_pool(instance);4422 4423 /* Free all the commands in the cmd_list */4424 for (i = 0; i < instance->max_mfi_cmds; i++)4425 4426 kfree(instance->cmd_list[i]);4427 4428 /* Free the cmd_list buffer itself */4429 kfree(instance->cmd_list);4430 instance->cmd_list = NULL;4431 4432 INIT_LIST_HEAD(&instance->cmd_pool);4433}4434 4435/**4436 * megasas_alloc_cmds - Allocates the command packets4437 * @instance: Adapter soft state4438 *4439 * Each command that is issued to the FW, whether IO commands from the OS or4440 * internal commands like IOCTLs, are wrapped in local data structure called4441 * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to4442 * the FW.4443 *4444 * Each frame has a 32-bit field called context (tag). This context is used4445 * to get back the megasas_cmd from the frame when a frame gets completed in4446 * the ISR. Typically the address of the megasas_cmd itself would be used as4447 * the context. But we wanted to keep the differences between 32 and 64 bit4448 * systems to the mininum. We always use 32 bit integers for the context. In4449 * this driver, the 32 bit values are the indices into an array cmd_list.4450 * This array is used only to look up the megasas_cmd given the context. The4451 * free commands themselves are maintained in a linked list called cmd_pool.4452 */4453int megasas_alloc_cmds(struct megasas_instance *instance)4454{4455 int i;4456 int j;4457 u16 max_cmd;4458 struct megasas_cmd *cmd;4459 4460 max_cmd = instance->max_mfi_cmds;4461 4462 /*4463 * instance->cmd_list is an array of struct megasas_cmd pointers.4464 * Allocate the dynamic array first and then allocate individual4465 * commands.4466 */4467 instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL);4468 4469 if (!instance->cmd_list) {4470 dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n");4471 return -ENOMEM;4472 }4473 4474 for (i = 0; i < max_cmd; i++) {4475 instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd),4476 GFP_KERNEL);4477 4478 if (!instance->cmd_list[i]) {4479 4480 for (j = 0; j < i; j++)4481 kfree(instance->cmd_list[j]);4482 4483 kfree(instance->cmd_list);4484 instance->cmd_list = NULL;4485 4486 return -ENOMEM;4487 }4488 }4489 4490 for (i = 0; i < max_cmd; i++) {4491 cmd = instance->cmd_list[i];4492 memset(cmd, 0, sizeof(struct megasas_cmd));4493 cmd->index = i;4494 cmd->scmd = NULL;4495 cmd->instance = instance;4496 4497 list_add_tail(&cmd->list, &instance->cmd_pool);4498 }4499 4500 /*4501 * Create a frame pool and assign one frame to each cmd4502 */4503 if (megasas_create_frame_pool(instance)) {4504 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n");4505 megasas_free_cmds(instance);4506 return -ENOMEM;4507 }4508 4509 return 0;4510}4511 4512/*4513 * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state.4514 * @instance: Adapter soft state4515 *4516 * Return 0 for only Fusion adapter, if driver load/unload is not in progress4517 * or FW is not under OCR.4518 */4519inline int4520dcmd_timeout_ocr_possible(struct megasas_instance *instance) {4521 4522 if (instance->adapter_type == MFI_SERIES)4523 return KILL_ADAPTER;4524 else if (instance->unload ||4525 test_bit(MEGASAS_FUSION_OCR_NOT_POSSIBLE,4526 &instance->reset_flags))4527 return IGNORE_TIMEOUT;4528 else4529 return INITIATE_OCR;4530}4531 4532static void4533megasas_get_pd_info(struct megasas_instance *instance, struct scsi_device *sdev)4534{4535 int ret;4536 struct megasas_cmd *cmd;4537 struct megasas_dcmd_frame *dcmd;4538 4539 struct MR_PRIV_DEVICE *mr_device_priv_data;4540 u16 device_id = 0;4541 4542 device_id = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id;4543 cmd = megasas_get_cmd(instance);4544 4545 if (!cmd) {4546 dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__);4547 return;4548 }4549 4550 dcmd = &cmd->frame->dcmd;4551 4552 memset(instance->pd_info, 0, sizeof(*instance->pd_info));4553 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);4554 4555 dcmd->mbox.s[0] = cpu_to_le16(device_id);4556 dcmd->cmd = MFI_CMD_DCMD;4557 dcmd->cmd_status = 0xFF;4558 dcmd->sge_count = 1;4559 dcmd->flags = MFI_FRAME_DIR_READ;4560 dcmd->timeout = 0;4561 dcmd->pad_0 = 0;4562 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO));4563 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO);4564 4565 megasas_set_dma_settings(instance, dcmd, instance->pd_info_h,4566 sizeof(struct MR_PD_INFO));4567 4568 if ((instance->adapter_type != MFI_SERIES) &&4569 !instance->mask_interrupts)4570 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);4571 else4572 ret = megasas_issue_polled(instance, cmd);4573 4574 switch (ret) {4575 case DCMD_SUCCESS:4576 mr_device_priv_data = sdev->hostdata;4577 le16_to_cpus((u16 *)&instance->pd_info->state.ddf.pdType);4578 mr_device_priv_data->interface_type =4579 instance->pd_info->state.ddf.pdType.intf;4580 break;4581 4582 case DCMD_TIMEOUT:4583 4584 switch (dcmd_timeout_ocr_possible(instance)) {4585 case INITIATE_OCR:4586 cmd->flags |= DRV_DCMD_SKIP_REFIRE;4587 mutex_unlock(&instance->reset_mutex);4588 megasas_reset_fusion(instance->host,4589 MFI_IO_TIMEOUT_OCR);4590 mutex_lock(&instance->reset_mutex);4591 break;4592 case KILL_ADAPTER:4593 megaraid_sas_kill_hba(instance);4594 break;4595 case IGNORE_TIMEOUT:4596 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",4597 __func__, __LINE__);4598 break;4599 }4600 4601 break;4602 }4603 4604 if (ret != DCMD_TIMEOUT)4605 megasas_return_cmd(instance, cmd);4606 4607 return;4608}4609/*4610 * megasas_get_pd_list_info - Returns FW's pd_list structure4611 * @instance: Adapter soft state4612 * @pd_list: pd_list structure4613 *4614 * Issues an internal command (DCMD) to get the FW's controller PD4615 * list structure. This information is mainly used to find out SYSTEM4616 * supported by the FW.4617 */4618static int4619megasas_get_pd_list(struct megasas_instance *instance)4620{4621 int ret = 0, pd_index = 0;4622 struct megasas_cmd *cmd;4623 struct megasas_dcmd_frame *dcmd;4624 struct MR_PD_LIST *ci;4625 struct MR_PD_ADDRESS *pd_addr;4626 4627 if (instance->pd_list_not_supported) {4628 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "4629 "not supported by firmware\n");4630 return ret;4631 }4632 4633 ci = instance->pd_list_buf;4634 4635 cmd = megasas_get_cmd(instance);4636 4637 if (!cmd) {4638 dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n");4639 return -ENOMEM;4640 }4641 4642 dcmd = &cmd->frame->dcmd;4643 4644 memset(ci, 0, sizeof(*ci));4645 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);4646 4647 dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST;4648 dcmd->mbox.b[1] = 0;4649 dcmd->cmd = MFI_CMD_DCMD;4650 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;4651 dcmd->sge_count = 1;4652 dcmd->flags = MFI_FRAME_DIR_READ;4653 dcmd->timeout = 0;4654 dcmd->pad_0 = 0;4655 dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST));4656 dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY);4657 4658 megasas_set_dma_settings(instance, dcmd, instance->pd_list_buf_h,4659 (MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)));4660 4661 if ((instance->adapter_type != MFI_SERIES) &&4662 !instance->mask_interrupts)4663 ret = megasas_issue_blocked_cmd(instance, cmd,4664 MFI_IO_TIMEOUT_SECS);4665 else4666 ret = megasas_issue_polled(instance, cmd);4667 4668 switch (ret) {4669 case DCMD_FAILED:4670 dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY "4671 "failed/not supported by firmware\n");4672 4673 if (instance->adapter_type != MFI_SERIES)4674 megaraid_sas_kill_hba(instance);4675 else4676 instance->pd_list_not_supported = 1;4677 break;4678 case DCMD_TIMEOUT:4679 4680 switch (dcmd_timeout_ocr_possible(instance)) {4681 case INITIATE_OCR:4682 cmd->flags |= DRV_DCMD_SKIP_REFIRE;4683 /*4684 * DCMD failed from AEN path.4685 * AEN path already hold reset_mutex to avoid PCI access4686 * while OCR is in progress.4687 */4688 mutex_unlock(&instance->reset_mutex);4689 megasas_reset_fusion(instance->host,4690 MFI_IO_TIMEOUT_OCR);4691 mutex_lock(&instance->reset_mutex);4692 break;4693 case KILL_ADAPTER:4694 megaraid_sas_kill_hba(instance);4695 break;4696 case IGNORE_TIMEOUT:4697 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n",4698 __func__, __LINE__);4699 break;4700 }4701 4702 break;4703 4704 case DCMD_SUCCESS:4705 pd_addr = ci->addr;4706 if (megasas_dbg_lvl & LD_PD_DEBUG)4707 dev_info(&instance->pdev->dev, "%s, sysPD count: 0x%x\n",4708 __func__, le32_to_cpu(ci->count));4709 4710 if ((le32_to_cpu(ci->count) >4711 (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL)))4712 break;4713 4714 memset(instance->local_pd_list, 0,4715 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));4716 4717 for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {4718 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid =4719 le16_to_cpu(pd_addr->deviceId);4720 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType =4721 pd_addr->scsiDevType;4722 instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState =4723 MR_PD_STATE_SYSTEM;4724 if (megasas_dbg_lvl & LD_PD_DEBUG)4725 dev_info(&instance->pdev->dev,4726 "PD%d: targetID: 0x%03x deviceType:0x%x\n",4727 pd_index, le16_to_cpu(pd_addr->deviceId),4728 pd_addr->scsiDevType);4729 pd_addr++;4730 }4731 4732 memcpy(instance->pd_list, instance->local_pd_list,4733 sizeof(instance->pd_list));4734 break;4735 4736 }4737 4738 if (ret != DCMD_TIMEOUT)4739 megasas_return_cmd(instance, cmd);4740 4741 return ret;4742}4743 4744/*4745 * megasas_get_ld_list_info - Returns FW's ld_list structure4746 * @instance: Adapter soft state4747 * @ld_list: ld_list structure4748 *4749 * Issues an internal command (DCMD) to get the FW's controller PD4750 * list structure. This information is mainly used to find out SYSTEM4751 * supported by the FW.4752 */4753static int4754megasas_get_ld_list(struct megasas_instance *instance)4755{4756 int ret = 0, ld_index = 0, ids = 0;4757 struct megasas_cmd *cmd;4758 struct megasas_dcmd_frame *dcmd;4759 struct MR_LD_LIST *ci;4760 dma_addr_t ci_h = 0;4761 u32 ld_count;4762 4763 ci = instance->ld_list_buf;4764 ci_h = instance->ld_list_buf_h;4765 4766 cmd = megasas_get_cmd(instance);4767 4768 if (!cmd) {4769 dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n");4770 return -ENOMEM;4771 }4772 4773 dcmd = &cmd->frame->dcmd;4774 4775 memset(ci, 0, sizeof(*ci));4776 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);4777 4778 if (instance->supportmax256vd)4779 dcmd->mbox.b[0] = 1;4780 dcmd->cmd = MFI_CMD_DCMD;4781 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;4782 dcmd->sge_count = 1;4783 dcmd->flags = MFI_FRAME_DIR_READ;4784 dcmd->timeout = 0;4785 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST));4786 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST);4787 dcmd->pad_0 = 0;4788 4789 megasas_set_dma_settings(instance, dcmd, ci_h,4790 sizeof(struct MR_LD_LIST));4791 4792 if ((instance->adapter_type != MFI_SERIES) &&4793 !instance->mask_interrupts)4794 ret = megasas_issue_blocked_cmd(instance, cmd,4795 MFI_IO_TIMEOUT_SECS);4796 else4797 ret = megasas_issue_polled(instance, cmd);4798 4799 ld_count = le32_to_cpu(ci->ldCount);4800 4801 switch (ret) {4802 case DCMD_FAILED:4803 megaraid_sas_kill_hba(instance);4804 break;4805 case DCMD_TIMEOUT:4806 4807 switch (dcmd_timeout_ocr_possible(instance)) {4808 case INITIATE_OCR:4809 cmd->flags |= DRV_DCMD_SKIP_REFIRE;4810 /*4811 * DCMD failed from AEN path.4812 * AEN path already hold reset_mutex to avoid PCI access4813 * while OCR is in progress.4814 */4815 mutex_unlock(&instance->reset_mutex);4816 megasas_reset_fusion(instance->host,4817 MFI_IO_TIMEOUT_OCR);4818 mutex_lock(&instance->reset_mutex);4819 break;4820 case KILL_ADAPTER:4821 megaraid_sas_kill_hba(instance);4822 break;4823 case IGNORE_TIMEOUT:4824 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",4825 __func__, __LINE__);4826 break;4827 }4828 4829 break;4830 4831 case DCMD_SUCCESS:4832 if (megasas_dbg_lvl & LD_PD_DEBUG)4833 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",4834 __func__, ld_count);4835 4836 if (ld_count > instance->fw_supported_vd_count)4837 break;4838 4839 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);4840 4841 for (ld_index = 0; ld_index < ld_count; ld_index++) {4842 if (ci->ldList[ld_index].state != 0) {4843 ids = ci->ldList[ld_index].ref.targetId;4844 instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId;4845 if (megasas_dbg_lvl & LD_PD_DEBUG)4846 dev_info(&instance->pdev->dev,4847 "LD%d: targetID: 0x%03x\n",4848 ld_index, ids);4849 }4850 }4851 4852 break;4853 }4854 4855 if (ret != DCMD_TIMEOUT)4856 megasas_return_cmd(instance, cmd);4857 4858 return ret;4859}4860 4861/**4862 * megasas_ld_list_query - Returns FW's ld_list structure4863 * @instance: Adapter soft state4864 * @query_type: ld_list structure type4865 *4866 * Issues an internal command (DCMD) to get the FW's controller PD4867 * list structure. This information is mainly used to find out SYSTEM4868 * supported by the FW.4869 */4870static int4871megasas_ld_list_query(struct megasas_instance *instance, u8 query_type)4872{4873 int ret = 0, ld_index = 0, ids = 0;4874 struct megasas_cmd *cmd;4875 struct megasas_dcmd_frame *dcmd;4876 struct MR_LD_TARGETID_LIST *ci;4877 dma_addr_t ci_h = 0;4878 u32 tgtid_count;4879 4880 ci = instance->ld_targetid_list_buf;4881 ci_h = instance->ld_targetid_list_buf_h;4882 4883 cmd = megasas_get_cmd(instance);4884 4885 if (!cmd) {4886 dev_warn(&instance->pdev->dev,4887 "megasas_ld_list_query: Failed to get cmd\n");4888 return -ENOMEM;4889 }4890 4891 dcmd = &cmd->frame->dcmd;4892 4893 memset(ci, 0, sizeof(*ci));4894 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);4895 4896 dcmd->mbox.b[0] = query_type;4897 if (instance->supportmax256vd)4898 dcmd->mbox.b[2] = 1;4899 4900 dcmd->cmd = MFI_CMD_DCMD;4901 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;4902 dcmd->sge_count = 1;4903 dcmd->flags = MFI_FRAME_DIR_READ;4904 dcmd->timeout = 0;4905 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST));4906 dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY);4907 dcmd->pad_0 = 0;4908 4909 megasas_set_dma_settings(instance, dcmd, ci_h,4910 sizeof(struct MR_LD_TARGETID_LIST));4911 4912 if ((instance->adapter_type != MFI_SERIES) &&4913 !instance->mask_interrupts)4914 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);4915 else4916 ret = megasas_issue_polled(instance, cmd);4917 4918 switch (ret) {4919 case DCMD_FAILED:4920 dev_info(&instance->pdev->dev,4921 "DCMD not supported by firmware - %s %d\n",4922 __func__, __LINE__);4923 ret = megasas_get_ld_list(instance);4924 break;4925 case DCMD_TIMEOUT:4926 switch (dcmd_timeout_ocr_possible(instance)) {4927 case INITIATE_OCR:4928 cmd->flags |= DRV_DCMD_SKIP_REFIRE;4929 /*4930 * DCMD failed from AEN path.4931 * AEN path already hold reset_mutex to avoid PCI access4932 * while OCR is in progress.4933 */4934 mutex_unlock(&instance->reset_mutex);4935 megasas_reset_fusion(instance->host,4936 MFI_IO_TIMEOUT_OCR);4937 mutex_lock(&instance->reset_mutex);4938 break;4939 case KILL_ADAPTER:4940 megaraid_sas_kill_hba(instance);4941 break;4942 case IGNORE_TIMEOUT:4943 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",4944 __func__, __LINE__);4945 break;4946 }4947 4948 break;4949 case DCMD_SUCCESS:4950 tgtid_count = le32_to_cpu(ci->count);4951 4952 if (megasas_dbg_lvl & LD_PD_DEBUG)4953 dev_info(&instance->pdev->dev, "%s, LD count: 0x%x\n",4954 __func__, tgtid_count);4955 4956 if ((tgtid_count > (instance->fw_supported_vd_count)))4957 break;4958 4959 memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS);4960 for (ld_index = 0; ld_index < tgtid_count; ld_index++) {4961 ids = ci->targetId[ld_index];4962 instance->ld_ids[ids] = ci->targetId[ld_index];4963 if (megasas_dbg_lvl & LD_PD_DEBUG)4964 dev_info(&instance->pdev->dev, "LD%d: targetID: 0x%03x\n",4965 ld_index, ci->targetId[ld_index]);4966 }4967 4968 break;4969 }4970 4971 if (ret != DCMD_TIMEOUT)4972 megasas_return_cmd(instance, cmd);4973 4974 return ret;4975}4976 4977/**4978 * megasas_host_device_list_query4979 * dcmd.opcode - MR_DCMD_CTRL_DEVICE_LIST_GET4980 * dcmd.mbox - reserved4981 * dcmd.sge IN - ptr to return MR_HOST_DEVICE_LIST structure4982 * Desc: This DCMD will return the combined device list4983 * Status: MFI_STAT_OK - List returned successfully4984 * MFI_STAT_INVALID_CMD - Firmware support for the feature has been4985 * disabled4986 * @instance: Adapter soft state4987 * @is_probe: Driver probe check4988 * Return: 0 if DCMD succeeded4989 * non-zero if failed4990 */4991static int4992megasas_host_device_list_query(struct megasas_instance *instance,4993 bool is_probe)4994{4995 int ret, i, target_id;4996 struct megasas_cmd *cmd;4997 struct megasas_dcmd_frame *dcmd;4998 struct MR_HOST_DEVICE_LIST *ci;4999 u32 count;5000 dma_addr_t ci_h;5001 5002 ci = instance->host_device_list_buf;5003 ci_h = instance->host_device_list_buf_h;5004 5005 cmd = megasas_get_cmd(instance);5006 5007 if (!cmd) {5008 dev_warn(&instance->pdev->dev,5009 "%s: failed to get cmd\n",5010 __func__);5011 return -ENOMEM;5012 }5013 5014 dcmd = &cmd->frame->dcmd;5015 5016 memset(ci, 0, sizeof(*ci));5017 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);5018 5019 dcmd->mbox.b[0] = is_probe ? 0 : 1;5020 dcmd->cmd = MFI_CMD_DCMD;5021 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;5022 dcmd->sge_count = 1;5023 dcmd->flags = MFI_FRAME_DIR_READ;5024 dcmd->timeout = 0;5025 dcmd->pad_0 = 0;5026 dcmd->data_xfer_len = cpu_to_le32(HOST_DEVICE_LIST_SZ);5027 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_DEVICE_LIST_GET);5028 5029 megasas_set_dma_settings(instance, dcmd, ci_h, HOST_DEVICE_LIST_SZ);5030 5031 if (!instance->mask_interrupts) {5032 ret = megasas_issue_blocked_cmd(instance, cmd,5033 MFI_IO_TIMEOUT_SECS);5034 } else {5035 ret = megasas_issue_polled(instance, cmd);5036 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5037 }5038 5039 switch (ret) {5040 case DCMD_SUCCESS:5041 /* Fill the internal pd_list and ld_ids array based on5042 * targetIds returned by FW5043 */5044 count = le32_to_cpu(ci->count);5045 5046 if (count > (MEGASAS_MAX_PD + MAX_LOGICAL_DRIVES_EXT))5047 break;5048 5049 if (megasas_dbg_lvl & LD_PD_DEBUG)5050 dev_info(&instance->pdev->dev, "%s, Device count: 0x%x\n",5051 __func__, count);5052 5053 memset(instance->local_pd_list, 0,5054 MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));5055 memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT);5056 for (i = 0; i < count; i++) {5057 target_id = le16_to_cpu(ci->host_device_list[i].target_id);5058 if (ci->host_device_list[i].flags.u.bits.is_sys_pd) {5059 instance->local_pd_list[target_id].tid = target_id;5060 instance->local_pd_list[target_id].driveType =5061 ci->host_device_list[i].scsi_type;5062 instance->local_pd_list[target_id].driveState =5063 MR_PD_STATE_SYSTEM;5064 if (megasas_dbg_lvl & LD_PD_DEBUG)5065 dev_info(&instance->pdev->dev,5066 "Device %d: PD targetID: 0x%03x deviceType:0x%x\n",5067 i, target_id, ci->host_device_list[i].scsi_type);5068 } else {5069 instance->ld_ids[target_id] = target_id;5070 if (megasas_dbg_lvl & LD_PD_DEBUG)5071 dev_info(&instance->pdev->dev,5072 "Device %d: LD targetID: 0x%03x\n",5073 i, target_id);5074 }5075 }5076 5077 memcpy(instance->pd_list, instance->local_pd_list,5078 sizeof(instance->pd_list));5079 break;5080 5081 case DCMD_TIMEOUT:5082 switch (dcmd_timeout_ocr_possible(instance)) {5083 case INITIATE_OCR:5084 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5085 mutex_unlock(&instance->reset_mutex);5086 megasas_reset_fusion(instance->host,5087 MFI_IO_TIMEOUT_OCR);5088 mutex_lock(&instance->reset_mutex);5089 break;5090 case KILL_ADAPTER:5091 megaraid_sas_kill_hba(instance);5092 break;5093 case IGNORE_TIMEOUT:5094 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",5095 __func__, __LINE__);5096 break;5097 }5098 break;5099 case DCMD_FAILED:5100 dev_err(&instance->pdev->dev,5101 "%s: MR_DCMD_CTRL_DEVICE_LIST_GET failed\n",5102 __func__);5103 break;5104 }5105 5106 if (ret != DCMD_TIMEOUT)5107 megasas_return_cmd(instance, cmd);5108 5109 return ret;5110}5111 5112/*5113 * megasas_update_ext_vd_details : Update details w.r.t Extended VD5114 * instance : Controller's instance5115*/5116static void megasas_update_ext_vd_details(struct megasas_instance *instance)5117{5118 struct fusion_context *fusion;5119 u32 ventura_map_sz = 0;5120 5121 fusion = instance->ctrl_context;5122 /* For MFI based controllers return dummy success */5123 if (!fusion)5124 return;5125 5126 instance->supportmax256vd =5127 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs;5128 /* Below is additional check to address future FW enhancement */5129 if (instance->ctrl_info_buf->max_lds > 64)5130 instance->supportmax256vd = 1;5131 5132 instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS5133 * MEGASAS_MAX_DEV_PER_CHANNEL;5134 instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS5135 * MEGASAS_MAX_DEV_PER_CHANNEL;5136 if (instance->supportmax256vd) {5137 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT;5138 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;5139 } else {5140 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;5141 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;5142 }5143 5144 dev_info(&instance->pdev->dev,5145 "FW provided supportMaxExtLDs: %d\tmax_lds: %d\n",5146 instance->ctrl_info_buf->adapterOperations3.supportMaxExtLDs ? 1 : 0,5147 instance->ctrl_info_buf->max_lds);5148 5149 if (instance->max_raid_mapsize) {5150 ventura_map_sz = instance->max_raid_mapsize *5151 MR_MIN_MAP_SIZE; /* 64k */5152 fusion->current_map_sz = ventura_map_sz;5153 fusion->max_map_sz = ventura_map_sz;5154 } else {5155 fusion->old_map_sz =5156 struct_size_t(struct MR_FW_RAID_MAP, ldSpanMap,5157 instance->fw_supported_vd_count);5158 fusion->new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT);5159 5160 fusion->max_map_sz =5161 max(fusion->old_map_sz, fusion->new_map_sz);5162 5163 if (instance->supportmax256vd)5164 fusion->current_map_sz = fusion->new_map_sz;5165 else5166 fusion->current_map_sz = fusion->old_map_sz;5167 }5168 /* irrespective of FW raid maps, driver raid map is constant */5169 fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP_ALL);5170}5171 5172/*5173 * dcmd.opcode - MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES5174 * dcmd.hdr.length - number of bytes to read5175 * dcmd.sge - Ptr to MR_SNAPDUMP_PROPERTIES5176 * Desc: Fill in snapdump properties5177 * Status: MFI_STAT_OK- Command successful5178 */5179void megasas_get_snapdump_properties(struct megasas_instance *instance)5180{5181 int ret = 0;5182 struct megasas_cmd *cmd;5183 struct megasas_dcmd_frame *dcmd;5184 struct MR_SNAPDUMP_PROPERTIES *ci;5185 dma_addr_t ci_h = 0;5186 5187 ci = instance->snapdump_prop;5188 ci_h = instance->snapdump_prop_h;5189 5190 if (!ci)5191 return;5192 5193 cmd = megasas_get_cmd(instance);5194 5195 if (!cmd) {5196 dev_dbg(&instance->pdev->dev, "Failed to get a free cmd\n");5197 return;5198 }5199 5200 dcmd = &cmd->frame->dcmd;5201 5202 memset(ci, 0, sizeof(*ci));5203 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);5204 5205 dcmd->cmd = MFI_CMD_DCMD;5206 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;5207 dcmd->sge_count = 1;5208 dcmd->flags = MFI_FRAME_DIR_READ;5209 dcmd->timeout = 0;5210 dcmd->pad_0 = 0;5211 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_SNAPDUMP_PROPERTIES));5212 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SNAPDUMP_GET_PROPERTIES);5213 5214 megasas_set_dma_settings(instance, dcmd, ci_h,5215 sizeof(struct MR_SNAPDUMP_PROPERTIES));5216 5217 if (!instance->mask_interrupts) {5218 ret = megasas_issue_blocked_cmd(instance, cmd,5219 MFI_IO_TIMEOUT_SECS);5220 } else {5221 ret = megasas_issue_polled(instance, cmd);5222 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5223 }5224 5225 switch (ret) {5226 case DCMD_SUCCESS:5227 instance->snapdump_wait_time =5228 min_t(u8, ci->trigger_min_num_sec_before_ocr,5229 MEGASAS_MAX_SNAP_DUMP_WAIT_TIME);5230 break;5231 5232 case DCMD_TIMEOUT:5233 switch (dcmd_timeout_ocr_possible(instance)) {5234 case INITIATE_OCR:5235 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5236 mutex_unlock(&instance->reset_mutex);5237 megasas_reset_fusion(instance->host,5238 MFI_IO_TIMEOUT_OCR);5239 mutex_lock(&instance->reset_mutex);5240 break;5241 case KILL_ADAPTER:5242 megaraid_sas_kill_hba(instance);5243 break;5244 case IGNORE_TIMEOUT:5245 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",5246 __func__, __LINE__);5247 break;5248 }5249 }5250 5251 if (ret != DCMD_TIMEOUT)5252 megasas_return_cmd(instance, cmd);5253}5254 5255/**5256 * megasas_get_ctrl_info - Returns FW's controller structure5257 * @instance: Adapter soft state5258 *5259 * Issues an internal command (DCMD) to get the FW's controller structure.5260 * This information is mainly used to find out the maximum IO transfer per5261 * command supported by the FW.5262 */5263int5264megasas_get_ctrl_info(struct megasas_instance *instance)5265{5266 int ret = 0;5267 struct megasas_cmd *cmd;5268 struct megasas_dcmd_frame *dcmd;5269 struct megasas_ctrl_info *ci;5270 dma_addr_t ci_h = 0;5271 5272 ci = instance->ctrl_info_buf;5273 ci_h = instance->ctrl_info_buf_h;5274 5275 cmd = megasas_get_cmd(instance);5276 5277 if (!cmd) {5278 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n");5279 return -ENOMEM;5280 }5281 5282 dcmd = &cmd->frame->dcmd;5283 5284 memset(ci, 0, sizeof(*ci));5285 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);5286 5287 dcmd->cmd = MFI_CMD_DCMD;5288 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;5289 dcmd->sge_count = 1;5290 dcmd->flags = MFI_FRAME_DIR_READ;5291 dcmd->timeout = 0;5292 dcmd->pad_0 = 0;5293 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info));5294 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO);5295 dcmd->mbox.b[0] = 1;5296 5297 megasas_set_dma_settings(instance, dcmd, ci_h,5298 sizeof(struct megasas_ctrl_info));5299 5300 if ((instance->adapter_type != MFI_SERIES) &&5301 !instance->mask_interrupts) {5302 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);5303 } else {5304 ret = megasas_issue_polled(instance, cmd);5305 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5306 }5307 5308 switch (ret) {5309 case DCMD_SUCCESS:5310 /* Save required controller information in5311 * CPU endianness format.5312 */5313 le32_to_cpus((u32 *)&ci->properties.OnOffProperties);5314 le16_to_cpus((u16 *)&ci->properties.on_off_properties2);5315 le32_to_cpus((u32 *)&ci->adapterOperations2);5316 le32_to_cpus((u32 *)&ci->adapterOperations3);5317 le16_to_cpus((u16 *)&ci->adapter_operations4);5318 le32_to_cpus((u32 *)&ci->adapter_operations5);5319 5320 /* Update the latest Ext VD info.5321 * From Init path, store current firmware details.5322 * From OCR path, detect any firmware properties changes.5323 * in case of Firmware upgrade without system reboot.5324 */5325 megasas_update_ext_vd_details(instance);5326 instance->support_seqnum_jbod_fp =5327 ci->adapterOperations3.useSeqNumJbodFP;5328 instance->support_morethan256jbod =5329 ci->adapter_operations4.support_pd_map_target_id;5330 instance->support_nvme_passthru =5331 ci->adapter_operations4.support_nvme_passthru;5332 instance->support_pci_lane_margining =5333 ci->adapter_operations5.support_pci_lane_margining;5334 instance->task_abort_tmo = ci->TaskAbortTO;5335 instance->max_reset_tmo = ci->MaxResetTO;5336 5337 /*Check whether controller is iMR or MR */5338 instance->is_imr = (ci->memory_size ? 0 : 1);5339 5340 instance->snapdump_wait_time =5341 (ci->properties.on_off_properties2.enable_snap_dump ?5342 MEGASAS_DEFAULT_SNAP_DUMP_WAIT_TIME : 0);5343 5344 instance->enable_fw_dev_list =5345 ci->properties.on_off_properties2.enable_fw_dev_list;5346 5347 dev_info(&instance->pdev->dev,5348 "controller type\t: %s(%dMB)\n",5349 instance->is_imr ? "iMR" : "MR",5350 le16_to_cpu(ci->memory_size));5351 5352 instance->disableOnlineCtrlReset =5353 ci->properties.OnOffProperties.disableOnlineCtrlReset;5354 instance->secure_jbod_support =5355 ci->adapterOperations3.supportSecurityonJBOD;5356 dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n",5357 instance->disableOnlineCtrlReset ? "Disabled" : "Enabled");5358 dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n",5359 instance->secure_jbod_support ? "Yes" : "No");5360 dev_info(&instance->pdev->dev, "NVMe passthru support\t: %s\n",5361 instance->support_nvme_passthru ? "Yes" : "No");5362 dev_info(&instance->pdev->dev,5363 "FW provided TM TaskAbort/Reset timeout\t: %d secs/%d secs\n",5364 instance->task_abort_tmo, instance->max_reset_tmo);5365 dev_info(&instance->pdev->dev, "JBOD sequence map support\t: %s\n",5366 instance->support_seqnum_jbod_fp ? "Yes" : "No");5367 dev_info(&instance->pdev->dev, "PCI Lane Margining support\t: %s\n",5368 instance->support_pci_lane_margining ? "Yes" : "No");5369 5370 break;5371 5372 case DCMD_TIMEOUT:5373 switch (dcmd_timeout_ocr_possible(instance)) {5374 case INITIATE_OCR:5375 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5376 mutex_unlock(&instance->reset_mutex);5377 megasas_reset_fusion(instance->host,5378 MFI_IO_TIMEOUT_OCR);5379 mutex_lock(&instance->reset_mutex);5380 break;5381 case KILL_ADAPTER:5382 megaraid_sas_kill_hba(instance);5383 break;5384 case IGNORE_TIMEOUT:5385 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",5386 __func__, __LINE__);5387 break;5388 }5389 break;5390 case DCMD_FAILED:5391 megaraid_sas_kill_hba(instance);5392 break;5393 5394 }5395 5396 if (ret != DCMD_TIMEOUT)5397 megasas_return_cmd(instance, cmd);5398 5399 return ret;5400}5401 5402/*5403 * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer5404 * to firmware5405 *5406 * @instance: Adapter soft state5407 * @crash_buf_state - tell FW to turn ON/OFF crash dump feature5408 MR_CRASH_BUF_TURN_OFF = 05409 MR_CRASH_BUF_TURN_ON = 15410 * @return 0 on success non-zero on failure.5411 * Issues an internal command (DCMD) to set parameters for crash dump feature.5412 * Driver will send address of crash dump DMA buffer and set mbox to tell FW5413 * that driver supports crash dump feature. This DCMD will be sent only if5414 * crash dump feature is supported by the FW.5415 *5416 */5417int megasas_set_crash_dump_params(struct megasas_instance *instance,5418 u8 crash_buf_state)5419{5420 int ret = 0;5421 struct megasas_cmd *cmd;5422 struct megasas_dcmd_frame *dcmd;5423 5424 cmd = megasas_get_cmd(instance);5425 5426 if (!cmd) {5427 dev_err(&instance->pdev->dev, "Failed to get a free cmd\n");5428 return -ENOMEM;5429 }5430 5431 5432 dcmd = &cmd->frame->dcmd;5433 5434 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);5435 dcmd->mbox.b[0] = crash_buf_state;5436 dcmd->cmd = MFI_CMD_DCMD;5437 dcmd->cmd_status = MFI_STAT_INVALID_STATUS;5438 dcmd->sge_count = 1;5439 dcmd->flags = MFI_FRAME_DIR_NONE;5440 dcmd->timeout = 0;5441 dcmd->pad_0 = 0;5442 dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE);5443 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS);5444 5445 megasas_set_dma_settings(instance, dcmd, instance->crash_dump_h,5446 CRASH_DMA_BUF_SIZE);5447 5448 if ((instance->adapter_type != MFI_SERIES) &&5449 !instance->mask_interrupts)5450 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);5451 else5452 ret = megasas_issue_polled(instance, cmd);5453 5454 if (ret == DCMD_TIMEOUT) {5455 switch (dcmd_timeout_ocr_possible(instance)) {5456 case INITIATE_OCR:5457 cmd->flags |= DRV_DCMD_SKIP_REFIRE;5458 megasas_reset_fusion(instance->host,5459 MFI_IO_TIMEOUT_OCR);5460 break;5461 case KILL_ADAPTER:5462 megaraid_sas_kill_hba(instance);5463 break;5464 case IGNORE_TIMEOUT:5465 dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n",5466 __func__, __LINE__);5467 break;5468 }5469 } else5470 megasas_return_cmd(instance, cmd);5471 5472 return ret;5473}5474 5475/**5476 * megasas_issue_init_mfi - Initializes the FW5477 * @instance: Adapter soft state5478 *5479 * Issues the INIT MFI cmd5480 */5481static int5482megasas_issue_init_mfi(struct megasas_instance *instance)5483{5484 __le32 context;5485 struct megasas_cmd *cmd;5486 struct megasas_init_frame *init_frame;5487 struct megasas_init_queue_info *initq_info;5488 dma_addr_t init_frame_h;5489 dma_addr_t initq_info_h;5490 5491 /*5492 * Prepare a init frame. Note the init frame points to queue info5493 * structure. Each frame has SGL allocated after first 64 bytes. For5494 * this frame - since we don't need any SGL - we use SGL's space as5495 * queue info structure5496 *5497 * We will not get a NULL command below. We just created the pool.5498 */5499 cmd = megasas_get_cmd(instance);5500 5501 init_frame = (struct megasas_init_frame *)cmd->frame;5502 initq_info = (struct megasas_init_queue_info *)5503 ((unsigned long)init_frame + 64);5504 5505 init_frame_h = cmd->frame_phys_addr;5506 initq_info_h = init_frame_h + 64;5507 5508 context = init_frame->context;5509 memset(init_frame, 0, MEGAMFI_FRAME_SIZE);5510 memset(initq_info, 0, sizeof(struct megasas_init_queue_info));5511 init_frame->context = context;5512 5513 initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1);5514 initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h);5515 5516 initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h);5517 initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h);5518 5519 init_frame->cmd = MFI_CMD_INIT;5520 init_frame->cmd_status = MFI_STAT_INVALID_STATUS;5521 init_frame->queue_info_new_phys_addr_lo =5522 cpu_to_le32(lower_32_bits(initq_info_h));5523 init_frame->queue_info_new_phys_addr_hi =5524 cpu_to_le32(upper_32_bits(initq_info_h));5525 5526 init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info));5527 5528 /*5529 * disable the intr before firing the init frame to FW5530 */5531 instance->instancet->disable_intr(instance);5532 5533 /*5534 * Issue the init frame in polled mode5535 */5536 5537 if (megasas_issue_polled(instance, cmd)) {5538 dev_err(&instance->pdev->dev, "Failed to init firmware\n");5539 megasas_return_cmd(instance, cmd);5540 goto fail_fw_init;5541 }5542 5543 megasas_return_cmd(instance, cmd);5544 5545 return 0;5546 5547fail_fw_init:5548 return -EINVAL;5549}5550 5551static u325552megasas_init_adapter_mfi(struct megasas_instance *instance)5553{5554 u32 context_sz;5555 u32 reply_q_sz;5556 5557 /*5558 * Get various operational parameters from status register5559 */5560 instance->max_fw_cmds = instance->instancet->read_fw_status_reg(instance) & 0x00FFFF;5561 /*5562 * Reduce the max supported cmds by 1. This is to ensure that the5563 * reply_q_sz (1 more than the max cmd that driver may send)5564 * does not exceed max cmds that the FW can support5565 */5566 instance->max_fw_cmds = instance->max_fw_cmds-1;5567 instance->max_mfi_cmds = instance->max_fw_cmds;5568 instance->max_num_sge = (instance->instancet->read_fw_status_reg(instance) & 0xFF0000) >>5569 0x10;5570 /*5571 * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands5572 * are reserved for IOCTL + driver's internal DCMDs.5573 */5574 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||5575 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) {5576 instance->max_scsi_cmds = (instance->max_fw_cmds -5577 MEGASAS_SKINNY_INT_CMDS);5578 sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS);5579 } else {5580 instance->max_scsi_cmds = (instance->max_fw_cmds -5581 MEGASAS_INT_CMDS);5582 sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS));5583 }5584 5585 instance->cur_can_queue = instance->max_scsi_cmds;5586 /*5587 * Create a pool of commands5588 */5589 if (megasas_alloc_cmds(instance))5590 goto fail_alloc_cmds;5591 5592 /*5593 * Allocate memory for reply queue. Length of reply queue should5594 * be _one_ more than the maximum commands handled by the firmware.5595 *5596 * Note: When FW completes commands, it places corresponding contex5597 * values in this circular reply queue. This circular queue is a fairly5598 * typical producer-consumer queue. FW is the producer (of completed5599 * commands) and the driver is the consumer.5600 */5601 context_sz = sizeof(u32);5602 reply_q_sz = context_sz * (instance->max_fw_cmds + 1);5603 5604 instance->reply_queue = dma_alloc_coherent(&instance->pdev->dev,5605 reply_q_sz, &instance->reply_queue_h, GFP_KERNEL);5606 5607 if (!instance->reply_queue) {5608 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n");5609 goto fail_reply_queue;5610 }5611 5612 if (megasas_issue_init_mfi(instance))5613 goto fail_fw_init;5614 5615 if (megasas_get_ctrl_info(instance)) {5616 dev_err(&instance->pdev->dev, "(%d): Could get controller info "5617 "Fail from %s %d\n", instance->unique_id,5618 __func__, __LINE__);5619 goto fail_fw_init;5620 }5621 5622 instance->fw_support_ieee = 0;5623 instance->fw_support_ieee =5624 (instance->instancet->read_fw_status_reg(instance) &5625 0x04000000);5626 5627 dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d",5628 instance->fw_support_ieee);5629 5630 if (instance->fw_support_ieee)5631 instance->flag_ieee = 1;5632 5633 return 0;5634 5635fail_fw_init:5636 5637 dma_free_coherent(&instance->pdev->dev, reply_q_sz,5638 instance->reply_queue, instance->reply_queue_h);5639fail_reply_queue:5640 megasas_free_cmds(instance);5641 5642fail_alloc_cmds:5643 return 1;5644}5645 5646static5647void megasas_setup_irq_poll(struct megasas_instance *instance)5648{5649 struct megasas_irq_context *irq_ctx;5650 u32 count, i;5651 5652 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;5653 5654 /* Initialize IRQ poll */5655 for (i = 0; i < count; i++) {5656 irq_ctx = &instance->irq_context[i];5657 irq_ctx->os_irq = pci_irq_vector(instance->pdev, i);5658 irq_ctx->irq_poll_scheduled = false;5659 irq_poll_init(&irq_ctx->irqpoll,5660 instance->threshold_reply_count,5661 megasas_irqpoll);5662 }5663}5664 5665/*5666 * megasas_setup_irqs_ioapic - register legacy interrupts.5667 * @instance: Adapter soft state5668 *5669 * Do not enable interrupt, only setup ISRs.5670 *5671 * Return 0 on success.5672 */5673static int5674megasas_setup_irqs_ioapic(struct megasas_instance *instance)5675{5676 struct pci_dev *pdev;5677 5678 pdev = instance->pdev;5679 instance->irq_context[0].instance = instance;5680 instance->irq_context[0].MSIxIndex = 0;5681 snprintf(instance->irq_context->name, MEGASAS_MSIX_NAME_LEN, "%s%u",5682 "megasas", instance->host->host_no);5683 if (request_irq(pci_irq_vector(pdev, 0),5684 instance->instancet->service_isr, IRQF_SHARED,5685 instance->irq_context->name, &instance->irq_context[0])) {5686 dev_err(&instance->pdev->dev,5687 "Failed to register IRQ from %s %d\n",5688 __func__, __LINE__);5689 return -1;5690 }5691 instance->perf_mode = MR_LATENCY_PERF_MODE;5692 instance->low_latency_index_start = 0;5693 return 0;5694}5695 5696/**5697 * megasas_setup_irqs_msix - register MSI-x interrupts.5698 * @instance: Adapter soft state5699 * @is_probe: Driver probe check5700 *5701 * Do not enable interrupt, only setup ISRs.5702 *5703 * Return 0 on success.5704 */5705static int5706megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe)5707{5708 int i, j;5709 struct pci_dev *pdev;5710 5711 pdev = instance->pdev;5712 5713 /* Try MSI-x */5714 for (i = 0; i < instance->msix_vectors; i++) {5715 instance->irq_context[i].instance = instance;5716 instance->irq_context[i].MSIxIndex = i;5717 snprintf(instance->irq_context[i].name, MEGASAS_MSIX_NAME_LEN, "%s%u-msix%u",5718 "megasas", instance->host->host_no, i);5719 if (request_irq(pci_irq_vector(pdev, i),5720 instance->instancet->service_isr, 0, instance->irq_context[i].name,5721 &instance->irq_context[i])) {5722 dev_err(&instance->pdev->dev,5723 "Failed to register IRQ for vector %d.\n", i);5724 for (j = 0; j < i; j++) {5725 if (j < instance->low_latency_index_start)5726 irq_update_affinity_hint(5727 pci_irq_vector(pdev, j), NULL);5728 free_irq(pci_irq_vector(pdev, j),5729 &instance->irq_context[j]);5730 }5731 /* Retry irq register for IO_APIC*/5732 instance->msix_vectors = 0;5733 instance->msix_load_balance = false;5734 if (is_probe) {5735 pci_free_irq_vectors(instance->pdev);5736 return megasas_setup_irqs_ioapic(instance);5737 } else {5738 return -1;5739 }5740 }5741 }5742 5743 return 0;5744}5745 5746/*5747 * megasas_destroy_irqs- unregister interrupts.5748 * @instance: Adapter soft state5749 * return: void5750 */5751static void5752megasas_destroy_irqs(struct megasas_instance *instance) {5753 5754 int i;5755 int count;5756 struct megasas_irq_context *irq_ctx;5757 5758 count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;5759 if (instance->adapter_type != MFI_SERIES) {5760 for (i = 0; i < count; i++) {5761 irq_ctx = &instance->irq_context[i];5762 irq_poll_disable(&irq_ctx->irqpoll);5763 }5764 }5765 5766 if (instance->msix_vectors)5767 for (i = 0; i < instance->msix_vectors; i++) {5768 if (i < instance->low_latency_index_start)5769 irq_update_affinity_hint(5770 pci_irq_vector(instance->pdev, i), NULL);5771 free_irq(pci_irq_vector(instance->pdev, i),5772 &instance->irq_context[i]);5773 }5774 else5775 free_irq(pci_irq_vector(instance->pdev, 0),5776 &instance->irq_context[0]);5777}5778 5779/**5780 * megasas_setup_jbod_map - setup jbod map for FP seq_number.5781 * @instance: Adapter soft state5782 *5783 * Return 0 on success.5784 */5785void5786megasas_setup_jbod_map(struct megasas_instance *instance)5787{5788 int i;5789 struct fusion_context *fusion = instance->ctrl_context;5790 size_t pd_seq_map_sz;5791 5792 pd_seq_map_sz = struct_size_t(struct MR_PD_CFG_SEQ_NUM_SYNC, seq,5793 MAX_PHYSICAL_DEVICES);5794 5795 instance->use_seqnum_jbod_fp =5796 instance->support_seqnum_jbod_fp;5797 if (reset_devices || !fusion ||5798 !instance->support_seqnum_jbod_fp) {5799 dev_info(&instance->pdev->dev,5800 "JBOD sequence map is disabled %s %d\n",5801 __func__, __LINE__);5802 instance->use_seqnum_jbod_fp = false;5803 return;5804 }5805 5806 if (fusion->pd_seq_sync[0])5807 goto skip_alloc;5808 5809 for (i = 0; i < JBOD_MAPS_COUNT; i++) {5810 fusion->pd_seq_sync[i] = dma_alloc_coherent5811 (&instance->pdev->dev, pd_seq_map_sz,5812 &fusion->pd_seq_phys[i], GFP_KERNEL);5813 if (!fusion->pd_seq_sync[i]) {5814 dev_err(&instance->pdev->dev,5815 "Failed to allocate memory from %s %d\n",5816 __func__, __LINE__);5817 if (i == 1) {5818 dma_free_coherent(&instance->pdev->dev,5819 pd_seq_map_sz, fusion->pd_seq_sync[0],5820 fusion->pd_seq_phys[0]);5821 fusion->pd_seq_sync[0] = NULL;5822 }5823 instance->use_seqnum_jbod_fp = false;5824 return;5825 }5826 }5827 5828skip_alloc:5829 if (!megasas_sync_pd_seq_num(instance, false) &&5830 !megasas_sync_pd_seq_num(instance, true))5831 instance->use_seqnum_jbod_fp = true;5832 else5833 instance->use_seqnum_jbod_fp = false;5834}5835 5836static void megasas_setup_reply_map(struct megasas_instance *instance)5837{5838 const struct cpumask *mask;5839 unsigned int queue, cpu, low_latency_index_start;5840 5841 low_latency_index_start = instance->low_latency_index_start;5842 5843 for (queue = low_latency_index_start; queue < instance->msix_vectors; queue++) {5844 mask = pci_irq_get_affinity(instance->pdev, queue);5845 if (!mask)5846 goto fallback;5847 5848 for_each_cpu(cpu, mask)5849 instance->reply_map[cpu] = queue;5850 }5851 return;5852 5853fallback:5854 queue = low_latency_index_start;5855 for_each_possible_cpu(cpu) {5856 instance->reply_map[cpu] = queue;5857 if (queue == (instance->msix_vectors - 1))5858 queue = low_latency_index_start;5859 else5860 queue++;5861 }5862}5863 5864/**5865 * megasas_get_device_list - Get the PD and LD device list from FW.5866 * @instance: Adapter soft state5867 * @return: Success or failure5868 *5869 * Issue DCMDs to Firmware to get the PD and LD list.5870 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination5871 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.5872 */5873static5874int megasas_get_device_list(struct megasas_instance *instance)5875{5876 if (instance->enable_fw_dev_list) {5877 if (megasas_host_device_list_query(instance, true))5878 return FAILED;5879 } else {5880 if (megasas_get_pd_list(instance) < 0) {5881 dev_err(&instance->pdev->dev, "failed to get PD list\n");5882 return FAILED;5883 }5884 5885 if (megasas_ld_list_query(instance,5886 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) {5887 dev_err(&instance->pdev->dev, "failed to get LD list\n");5888 return FAILED;5889 }5890 }5891 5892 return SUCCESS;5893}5894 5895/**5896 * megasas_set_high_iops_queue_affinity_and_hint - Set affinity and hint5897 * for high IOPS queues5898 * @instance: Adapter soft state5899 * return: void5900 */5901static inline void5902megasas_set_high_iops_queue_affinity_and_hint(struct megasas_instance *instance)5903{5904 int i;5905 unsigned int irq;5906 const struct cpumask *mask;5907 5908 if (instance->perf_mode == MR_BALANCED_PERF_MODE) {5909 mask = cpumask_of_node(dev_to_node(&instance->pdev->dev));5910 5911 for (i = 0; i < instance->low_latency_index_start; i++) {5912 irq = pci_irq_vector(instance->pdev, i);5913 irq_set_affinity_and_hint(irq, mask);5914 }5915 }5916}5917 5918static int5919__megasas_alloc_irq_vectors(struct megasas_instance *instance)5920{5921 int i, irq_flags;5922 struct irq_affinity desc = { .pre_vectors = instance->low_latency_index_start };5923 struct irq_affinity *descp = &desc;5924 5925 irq_flags = PCI_IRQ_MSIX;5926 5927 if (instance->smp_affinity_enable)5928 irq_flags |= PCI_IRQ_AFFINITY | PCI_IRQ_ALL_TYPES;5929 else5930 descp = NULL;5931 5932 /* Do not allocate msix vectors for poll_queues.5933 * msix_vectors is always within a range of FW supported reply queue.5934 */5935 i = pci_alloc_irq_vectors_affinity(instance->pdev,5936 instance->low_latency_index_start,5937 instance->msix_vectors - instance->iopoll_q_count, irq_flags, descp);5938 5939 return i;5940}5941 5942/**5943 * megasas_alloc_irq_vectors - Allocate IRQ vectors/enable MSI-x vectors5944 * @instance: Adapter soft state5945 * return: void5946 */5947static void5948megasas_alloc_irq_vectors(struct megasas_instance *instance)5949{5950 int i;5951 unsigned int num_msix_req;5952 5953 instance->iopoll_q_count = 0;5954 if ((instance->adapter_type != MFI_SERIES) &&5955 poll_queues) {5956 5957 instance->perf_mode = MR_LATENCY_PERF_MODE;5958 instance->low_latency_index_start = 1;5959 5960 /* reserve for default and non-mananged pre-vector. */5961 if (instance->msix_vectors > (poll_queues + 2))5962 instance->iopoll_q_count = poll_queues;5963 else5964 instance->iopoll_q_count = 0;5965 5966 num_msix_req = num_online_cpus() + instance->low_latency_index_start;5967 instance->msix_vectors = min(num_msix_req,5968 instance->msix_vectors);5969 5970 }5971 5972 i = __megasas_alloc_irq_vectors(instance);5973 5974 if (((instance->perf_mode == MR_BALANCED_PERF_MODE)5975 || instance->iopoll_q_count) &&5976 (i != (instance->msix_vectors - instance->iopoll_q_count))) {5977 if (instance->msix_vectors)5978 pci_free_irq_vectors(instance->pdev);5979 /* Disable Balanced IOPS mode and try realloc vectors */5980 instance->perf_mode = MR_LATENCY_PERF_MODE;5981 instance->low_latency_index_start = 1;5982 num_msix_req = num_online_cpus() + instance->low_latency_index_start;5983 5984 instance->msix_vectors = min(num_msix_req,5985 instance->msix_vectors);5986 5987 instance->iopoll_q_count = 0;5988 i = __megasas_alloc_irq_vectors(instance);5989 5990 }5991 5992 dev_info(&instance->pdev->dev,5993 "requested/available msix %d/%d poll_queue %d\n",5994 instance->msix_vectors - instance->iopoll_q_count,5995 i, instance->iopoll_q_count);5996 5997 if (i > 0)5998 instance->msix_vectors = i;5999 else6000 instance->msix_vectors = 0;6001 6002 if (instance->smp_affinity_enable)6003 megasas_set_high_iops_queue_affinity_and_hint(instance);6004}6005 6006/**6007 * megasas_init_fw - Initializes the FW6008 * @instance: Adapter soft state6009 *6010 * This is the main function for initializing firmware6011 */6012 6013static int megasas_init_fw(struct megasas_instance *instance)6014{6015 u32 max_sectors_1;6016 u32 max_sectors_2, tmp_sectors, msix_enable;6017 u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg;6018 resource_size_t base_addr;6019 void *base_addr_phys;6020 struct megasas_ctrl_info *ctrl_info = NULL;6021 unsigned long bar_list;6022 int i, j, loop;6023 struct IOV_111 *iovPtr;6024 struct fusion_context *fusion;6025 bool intr_coalescing;6026 unsigned int num_msix_req;6027 u16 lnksta, speed;6028 6029 fusion = instance->ctrl_context;6030 6031 /* Find first memory bar */6032 bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);6033 instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);6034 if (pci_request_selected_regions(instance->pdev, 1<<instance->bar,6035 "megasas: LSI")) {6036 dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");6037 return -EBUSY;6038 }6039 6040 base_addr = pci_resource_start(instance->pdev, instance->bar);6041 instance->reg_set = ioremap(base_addr, 8192);6042 6043 if (!instance->reg_set) {6044 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n");6045 goto fail_ioremap;6046 }6047 6048 base_addr_phys = &base_addr;6049 dev_printk(KERN_DEBUG, &instance->pdev->dev,6050 "BAR:0x%lx BAR's base_addr(phys):%pa mapped virt_addr:0x%p\n",6051 instance->bar, base_addr_phys, instance->reg_set);6052 6053 if (instance->adapter_type != MFI_SERIES)6054 instance->instancet = &megasas_instance_template_fusion;6055 else {6056 switch (instance->pdev->device) {6057 case PCI_DEVICE_ID_LSI_SAS1078R:6058 case PCI_DEVICE_ID_LSI_SAS1078DE:6059 instance->instancet = &megasas_instance_template_ppc;6060 break;6061 case PCI_DEVICE_ID_LSI_SAS1078GEN2:6062 case PCI_DEVICE_ID_LSI_SAS0079GEN2:6063 instance->instancet = &megasas_instance_template_gen2;6064 break;6065 case PCI_DEVICE_ID_LSI_SAS0073SKINNY:6066 case PCI_DEVICE_ID_LSI_SAS0071SKINNY:6067 instance->instancet = &megasas_instance_template_skinny;6068 break;6069 case PCI_DEVICE_ID_LSI_SAS1064R:6070 case PCI_DEVICE_ID_DELL_PERC5:6071 default:6072 instance->instancet = &megasas_instance_template_xscale;6073 instance->pd_list_not_supported = 1;6074 break;6075 }6076 }6077 6078 if (megasas_transition_to_ready(instance, 0)) {6079 dev_info(&instance->pdev->dev,6080 "Failed to transition controller to ready from %s!\n",6081 __func__);6082 if (instance->adapter_type != MFI_SERIES) {6083 status_reg = instance->instancet->read_fw_status_reg(6084 instance);6085 if (status_reg & MFI_RESET_ADAPTER) {6086 if (megasas_adp_reset_wait_for_ready6087 (instance, true, 0) == FAILED)6088 goto fail_ready_state;6089 } else {6090 goto fail_ready_state;6091 }6092 } else {6093 atomic_set(&instance->fw_reset_no_pci_access, 1);6094 instance->instancet->adp_reset6095 (instance, instance->reg_set);6096 atomic_set(&instance->fw_reset_no_pci_access, 0);6097 6098 /*waiting for about 30 second before retry*/6099 ssleep(30);6100 6101 if (megasas_transition_to_ready(instance, 0))6102 goto fail_ready_state;6103 }6104 6105 dev_info(&instance->pdev->dev,6106 "FW restarted successfully from %s!\n",6107 __func__);6108 }6109 6110 megasas_init_ctrl_params(instance);6111 6112 if (megasas_set_dma_mask(instance))6113 goto fail_ready_state;6114 6115 if (megasas_alloc_ctrl_mem(instance))6116 goto fail_alloc_dma_buf;6117 6118 if (megasas_alloc_ctrl_dma_buffers(instance))6119 goto fail_alloc_dma_buf;6120 6121 fusion = instance->ctrl_context;6122 6123 if (instance->adapter_type >= VENTURA_SERIES) {6124 scratch_pad_2 =6125 megasas_readl(instance,6126 &instance->reg_set->outbound_scratch_pad_2);6127 instance->max_raid_mapsize = ((scratch_pad_2 >>6128 MR_MAX_RAID_MAP_SIZE_OFFSET_SHIFT) &6129 MR_MAX_RAID_MAP_SIZE_MASK);6130 }6131 6132 instance->enable_sdev_max_qd = enable_sdev_max_qd;6133 6134 switch (instance->adapter_type) {6135 case VENTURA_SERIES:6136 fusion->pcie_bw_limitation = true;6137 break;6138 case AERO_SERIES:6139 fusion->r56_div_offload = true;6140 break;6141 default:6142 break;6143 }6144 6145 /* Check if MSI-X is supported while in ready state */6146 msix_enable = (instance->instancet->read_fw_status_reg(instance) &6147 0x4000000) >> 0x1a;6148 if (msix_enable && !msix_disable) {6149 6150 scratch_pad_1 = megasas_readl6151 (instance, &instance->reg_set->outbound_scratch_pad_1);6152 /* Check max MSI-X vectors */6153 if (fusion) {6154 if (instance->adapter_type == THUNDERBOLT_SERIES) {6155 /* Thunderbolt Series*/6156 instance->msix_vectors = (scratch_pad_16157 & MR_MAX_REPLY_QUEUES_OFFSET) + 1;6158 } else {6159 instance->msix_vectors = ((scratch_pad_16160 & MR_MAX_REPLY_QUEUES_EXT_OFFSET)6161 >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1;6162 6163 /*6164 * For Invader series, > 8 MSI-x vectors6165 * supported by FW/HW implies combined6166 * reply queue mode is enabled.6167 * For Ventura series, > 16 MSI-x vectors6168 * supported by FW/HW implies combined6169 * reply queue mode is enabled.6170 */6171 switch (instance->adapter_type) {6172 case INVADER_SERIES:6173 if (instance->msix_vectors > 8)6174 instance->msix_combined = true;6175 break;6176 case AERO_SERIES:6177 case VENTURA_SERIES:6178 if (instance->msix_vectors > 16)6179 instance->msix_combined = true;6180 break;6181 }6182 6183 if (rdpq_enable)6184 instance->is_rdpq = (scratch_pad_1 & MR_RDPQ_MODE_OFFSET) ?6185 1 : 0;6186 6187 if (instance->adapter_type >= INVADER_SERIES &&6188 !instance->msix_combined) {6189 instance->msix_load_balance = true;6190 instance->smp_affinity_enable = false;6191 }6192 6193 /* Save 1-15 reply post index address to local memory6194 * Index 0 is already saved from reg offset6195 * MPI2_REPLY_POST_HOST_INDEX_OFFSET6196 */6197 for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) {6198 instance->reply_post_host_index_addr[loop] =6199 (u32 __iomem *)6200 ((u8 __iomem *)instance->reg_set +6201 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET6202 + (loop * 0x10));6203 }6204 }6205 6206 dev_info(&instance->pdev->dev,6207 "firmware supports msix\t: (%d)",6208 instance->msix_vectors);6209 if (msix_vectors)6210 instance->msix_vectors = min(msix_vectors,6211 instance->msix_vectors);6212 } else /* MFI adapters */6213 instance->msix_vectors = 1;6214 6215 6216 /*6217 * For Aero (if some conditions are met), driver will configure a6218 * few additional reply queues with interrupt coalescing enabled.6219 * These queues with interrupt coalescing enabled are called6220 * High IOPS queues and rest of reply queues (based on number of6221 * logical CPUs) are termed as Low latency queues.6222 *6223 * Total Number of reply queues = High IOPS queues + low latency queues6224 *6225 * For rest of fusion adapters, 1 additional reply queue will be6226 * reserved for management commands, rest of reply queues6227 * (based on number of logical CPUs) will be used for IOs and6228 * referenced as IO queues.6229 * Total Number of reply queues = 1 + IO queues6230 *6231 * MFI adapters supports single MSI-x so single reply queue6232 * will be used for IO and management commands.6233 */6234 6235 intr_coalescing = (scratch_pad_1 & MR_INTR_COALESCING_SUPPORT_OFFSET) ?6236 true : false;6237 if (intr_coalescing &&6238 (num_online_cpus() >= MR_HIGH_IOPS_QUEUE_COUNT) &&6239 (instance->msix_vectors == MEGASAS_MAX_MSIX_QUEUES))6240 instance->perf_mode = MR_BALANCED_PERF_MODE;6241 else6242 instance->perf_mode = MR_LATENCY_PERF_MODE;6243 6244 6245 if (instance->adapter_type == AERO_SERIES) {6246 pcie_capability_read_word(instance->pdev, PCI_EXP_LNKSTA, &lnksta);6247 speed = lnksta & PCI_EXP_LNKSTA_CLS;6248 6249 /*6250 * For Aero, if PCIe link speed is <16 GT/s, then driver should operate6251 * in latency perf mode and enable R1 PCI bandwidth algorithm6252 */6253 if (speed < 0x4) {6254 instance->perf_mode = MR_LATENCY_PERF_MODE;6255 fusion->pcie_bw_limitation = true;6256 }6257 6258 /*6259 * Performance mode settings provided through module parameter-perf_mode will6260 * take affect only for:6261 * 1. Aero family of adapters.6262 * 2. When user sets module parameter- perf_mode in range of 0-2.6263 */6264 if ((perf_mode >= MR_BALANCED_PERF_MODE) &&6265 (perf_mode <= MR_LATENCY_PERF_MODE))6266 instance->perf_mode = perf_mode;6267 /*6268 * If intr coalescing is not supported by controller FW, then IOPS6269 * and Balanced modes are not feasible.6270 */6271 if (!intr_coalescing)6272 instance->perf_mode = MR_LATENCY_PERF_MODE;6273 6274 }6275 6276 if (instance->perf_mode == MR_BALANCED_PERF_MODE)6277 instance->low_latency_index_start =6278 MR_HIGH_IOPS_QUEUE_COUNT;6279 else6280 instance->low_latency_index_start = 1;6281 6282 num_msix_req = num_online_cpus() + instance->low_latency_index_start;6283 6284 instance->msix_vectors = min(num_msix_req,6285 instance->msix_vectors);6286 6287 megasas_alloc_irq_vectors(instance);6288 if (!instance->msix_vectors)6289 instance->msix_load_balance = false;6290 }6291 /*6292 * MSI-X host index 0 is common for all adapter.6293 * It is used for all MPT based Adapters.6294 */6295 if (instance->msix_combined) {6296 instance->reply_post_host_index_addr[0] =6297 (u32 *)((u8 *)instance->reg_set +6298 MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET);6299 } else {6300 instance->reply_post_host_index_addr[0] =6301 (u32 *)((u8 *)instance->reg_set +6302 MPI2_REPLY_POST_HOST_INDEX_OFFSET);6303 }6304 6305 if (!instance->msix_vectors) {6306 i = pci_alloc_irq_vectors(instance->pdev, 1, 1, PCI_IRQ_INTX);6307 if (i < 0)6308 goto fail_init_adapter;6309 }6310 6311 megasas_setup_reply_map(instance);6312 6313 dev_info(&instance->pdev->dev,6314 "current msix/online cpus\t: (%d/%d)\n",6315 instance->msix_vectors, (unsigned int)num_online_cpus());6316 dev_info(&instance->pdev->dev,6317 "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled");6318 6319 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,6320 (unsigned long)instance);6321 6322 /*6323 * Below are default value for legacy Firmware.6324 * non-fusion based controllers6325 */6326 instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES;6327 instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES;6328 /* Get operational params, sge flags, send init cmd to controller */6329 if (instance->instancet->init_adapter(instance))6330 goto fail_init_adapter;6331 6332 if (instance->adapter_type >= VENTURA_SERIES) {6333 scratch_pad_3 =6334 megasas_readl(instance,6335 &instance->reg_set->outbound_scratch_pad_3);6336 if ((scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK) >=6337 MR_DEFAULT_NVME_PAGE_SHIFT)6338 instance->nvme_page_size =6339 (1 << (scratch_pad_3 & MR_NVME_PAGE_SIZE_MASK));6340 6341 dev_info(&instance->pdev->dev,6342 "NVME page size\t: (%d)\n", instance->nvme_page_size);6343 }6344 6345 if (instance->msix_vectors ?6346 megasas_setup_irqs_msix(instance, 1) :6347 megasas_setup_irqs_ioapic(instance))6348 goto fail_init_adapter;6349 6350 if (instance->adapter_type != MFI_SERIES)6351 megasas_setup_irq_poll(instance);6352 6353 instance->instancet->enable_intr(instance);6354 6355 dev_info(&instance->pdev->dev, "INIT adapter done\n");6356 6357 megasas_setup_jbod_map(instance);6358 6359 if (megasas_get_device_list(instance) != SUCCESS) {6360 dev_err(&instance->pdev->dev,6361 "%s: megasas_get_device_list failed\n",6362 __func__);6363 goto fail_get_ld_pd_list;6364 }6365 6366 /* stream detection initialization */6367 if (instance->adapter_type >= VENTURA_SERIES) {6368 fusion->stream_detect_by_ld =6369 kcalloc(MAX_LOGICAL_DRIVES_EXT,6370 sizeof(struct LD_STREAM_DETECT *),6371 GFP_KERNEL);6372 if (!fusion->stream_detect_by_ld) {6373 dev_err(&instance->pdev->dev,6374 "unable to allocate stream detection for pool of LDs\n");6375 goto fail_get_ld_pd_list;6376 }6377 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i) {6378 fusion->stream_detect_by_ld[i] =6379 kzalloc(sizeof(struct LD_STREAM_DETECT),6380 GFP_KERNEL);6381 if (!fusion->stream_detect_by_ld[i]) {6382 dev_err(&instance->pdev->dev,6383 "unable to allocate stream detect by LD\n");6384 for (j = 0; j < i; ++j)6385 kfree(fusion->stream_detect_by_ld[j]);6386 kfree(fusion->stream_detect_by_ld);6387 fusion->stream_detect_by_ld = NULL;6388 goto fail_get_ld_pd_list;6389 }6390 fusion->stream_detect_by_ld[i]->mru_bit_map6391 = MR_STREAM_BITMAP;6392 }6393 }6394 6395 /*6396 * Compute the max allowed sectors per IO: The controller info has two6397 * limits on max sectors. Driver should use the minimum of these two.6398 *6399 * 1 << stripe_sz_ops.min = max sectors per strip6400 *6401 * Note that older firmwares ( < FW ver 30) didn't report information6402 * to calculate max_sectors_1. So the number ended up as zero always.6403 */6404 tmp_sectors = 0;6405 ctrl_info = instance->ctrl_info_buf;6406 6407 max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) *6408 le16_to_cpu(ctrl_info->max_strips_per_io);6409 max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size);6410 6411 tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2);6412 6413 instance->peerIsPresent = ctrl_info->cluster.peerIsPresent;6414 instance->passive = ctrl_info->cluster.passive;6415 memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId));6416 instance->UnevenSpanSupport =6417 ctrl_info->adapterOperations2.supportUnevenSpans;6418 if (instance->UnevenSpanSupport) {6419 struct fusion_context *fusion = instance->ctrl_context;6420 if (MR_ValidateMapInfo(instance, instance->map_id))6421 fusion->fast_path_io = 1;6422 else6423 fusion->fast_path_io = 0;6424 6425 }6426 if (ctrl_info->host_interface.SRIOV) {6427 instance->requestorId = ctrl_info->iov.requestorId;6428 if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) {6429 if (!ctrl_info->adapterOperations2.activePassive)6430 instance->PlasmaFW111 = 1;6431 6432 dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n",6433 instance->PlasmaFW111 ? "1.11" : "new");6434 6435 if (instance->PlasmaFW111) {6436 iovPtr = (struct IOV_111 *)6437 ((unsigned char *)ctrl_info + IOV_111_OFFSET);6438 instance->requestorId = iovPtr->requestorId;6439 }6440 }6441 dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n",6442 instance->requestorId);6443 }6444 6445 instance->crash_dump_fw_support =6446 ctrl_info->adapterOperations3.supportCrashDump;6447 instance->crash_dump_drv_support =6448 (instance->crash_dump_fw_support &&6449 instance->crash_dump_buf);6450 if (instance->crash_dump_drv_support)6451 megasas_set_crash_dump_params(instance,6452 MR_CRASH_BUF_TURN_OFF);6453 6454 else {6455 if (instance->crash_dump_buf)6456 dma_free_coherent(&instance->pdev->dev,6457 CRASH_DMA_BUF_SIZE,6458 instance->crash_dump_buf,6459 instance->crash_dump_h);6460 instance->crash_dump_buf = NULL;6461 }6462 6463 if (instance->snapdump_wait_time) {6464 megasas_get_snapdump_properties(instance);6465 dev_info(&instance->pdev->dev, "Snap dump wait time\t: %d\n",6466 instance->snapdump_wait_time);6467 }6468 6469 dev_info(&instance->pdev->dev,6470 "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n",6471 le16_to_cpu(ctrl_info->pci.vendor_id),6472 le16_to_cpu(ctrl_info->pci.device_id),6473 le16_to_cpu(ctrl_info->pci.sub_vendor_id),6474 le16_to_cpu(ctrl_info->pci.sub_device_id));6475 dev_info(&instance->pdev->dev, "unevenspan support : %s\n",6476 instance->UnevenSpanSupport ? "yes" : "no");6477 dev_info(&instance->pdev->dev, "firmware crash dump : %s\n",6478 instance->crash_dump_drv_support ? "yes" : "no");6479 dev_info(&instance->pdev->dev, "JBOD sequence map : %s\n",6480 instance->use_seqnum_jbod_fp ? "enabled" : "disabled");6481 6482 instance->max_sectors_per_req = instance->max_num_sge *6483 SGE_BUFFER_SIZE / 512;6484 if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors))6485 instance->max_sectors_per_req = tmp_sectors;6486 6487 /* Check for valid throttlequeuedepth module parameter */6488 if (throttlequeuedepth &&6489 throttlequeuedepth <= instance->max_scsi_cmds)6490 instance->throttlequeuedepth = throttlequeuedepth;6491 else6492 instance->throttlequeuedepth =6493 MEGASAS_THROTTLE_QUEUE_DEPTH;6494 6495 if ((resetwaittime < 1) ||6496 (resetwaittime > MEGASAS_RESET_WAIT_TIME))6497 resetwaittime = MEGASAS_RESET_WAIT_TIME;6498 6499 if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))6500 scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT;6501 6502 /* Launch SR-IOV heartbeat timer */6503 if (instance->requestorId) {6504 if (!megasas_sriov_start_heartbeat(instance, 1)) {6505 megasas_start_timer(instance);6506 } else {6507 instance->skip_heartbeat_timer_del = 1;6508 goto fail_get_ld_pd_list;6509 }6510 }6511 6512 /*6513 * Create and start watchdog thread which will monitor6514 * controller state every 1 sec and trigger OCR when6515 * it enters fault state6516 */6517 if (instance->adapter_type != MFI_SERIES)6518 if (megasas_fusion_start_watchdog(instance) != SUCCESS)6519 goto fail_start_watchdog;6520 6521 return 0;6522 6523fail_start_watchdog:6524 if (instance->requestorId && !instance->skip_heartbeat_timer_del)6525 del_timer_sync(&instance->sriov_heartbeat_timer);6526fail_get_ld_pd_list:6527 instance->instancet->disable_intr(instance);6528 megasas_destroy_irqs(instance);6529fail_init_adapter:6530 if (instance->msix_vectors)6531 pci_free_irq_vectors(instance->pdev);6532 instance->msix_vectors = 0;6533fail_alloc_dma_buf:6534 megasas_free_ctrl_dma_buffers(instance);6535 megasas_free_ctrl_mem(instance);6536fail_ready_state:6537 iounmap(instance->reg_set);6538 6539fail_ioremap:6540 pci_release_selected_regions(instance->pdev, 1<<instance->bar);6541 6542 dev_err(&instance->pdev->dev, "Failed from %s %d\n",6543 __func__, __LINE__);6544 return -EINVAL;6545}6546 6547/**6548 * megasas_release_mfi - Reverses the FW initialization6549 * @instance: Adapter soft state6550 */6551static void megasas_release_mfi(struct megasas_instance *instance)6552{6553 u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1);6554 6555 if (instance->reply_queue)6556 dma_free_coherent(&instance->pdev->dev, reply_q_sz,6557 instance->reply_queue, instance->reply_queue_h);6558 6559 megasas_free_cmds(instance);6560 6561 iounmap(instance->reg_set);6562 6563 pci_release_selected_regions(instance->pdev, 1<<instance->bar);6564}6565 6566/**6567 * megasas_get_seq_num - Gets latest event sequence numbers6568 * @instance: Adapter soft state6569 * @eli: FW event log sequence numbers information6570 *6571 * FW maintains a log of all events in a non-volatile area. Upper layers would6572 * usually find out the latest sequence number of the events, the seq number at6573 * the boot etc. They would "read" all the events below the latest seq number6574 * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq6575 * number), they would subsribe to AEN (asynchronous event notification) and6576 * wait for the events to happen.6577 */6578static int6579megasas_get_seq_num(struct megasas_instance *instance,6580 struct megasas_evt_log_info *eli)6581{6582 struct megasas_cmd *cmd;6583 struct megasas_dcmd_frame *dcmd;6584 struct megasas_evt_log_info *el_info;6585 dma_addr_t el_info_h = 0;6586 int ret;6587 6588 cmd = megasas_get_cmd(instance);6589 6590 if (!cmd) {6591 return -ENOMEM;6592 }6593 6594 dcmd = &cmd->frame->dcmd;6595 el_info = dma_alloc_coherent(&instance->pdev->dev,6596 sizeof(struct megasas_evt_log_info),6597 &el_info_h, GFP_KERNEL);6598 if (!el_info) {6599 megasas_return_cmd(instance, cmd);6600 return -ENOMEM;6601 }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_log_info));6612 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO);6613 6614 megasas_set_dma_settings(instance, dcmd, el_info_h,6615 sizeof(struct megasas_evt_log_info));6616 6617 ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS);6618 if (ret != DCMD_SUCCESS) {6619 dev_err(&instance->pdev->dev, "Failed from %s %d\n",6620 __func__, __LINE__);6621 goto dcmd_failed;6622 }6623 6624 /*6625 * Copy the data back into callers buffer6626 */6627 eli->newest_seq_num = el_info->newest_seq_num;6628 eli->oldest_seq_num = el_info->oldest_seq_num;6629 eli->clear_seq_num = el_info->clear_seq_num;6630 eli->shutdown_seq_num = el_info->shutdown_seq_num;6631 eli->boot_seq_num = el_info->boot_seq_num;6632 6633dcmd_failed:6634 dma_free_coherent(&instance->pdev->dev,6635 sizeof(struct megasas_evt_log_info),6636 el_info, el_info_h);6637 6638 megasas_return_cmd(instance, cmd);6639 6640 return ret;6641}6642 6643/**6644 * megasas_register_aen - Registers for asynchronous event notification6645 * @instance: Adapter soft state6646 * @seq_num: The starting sequence number6647 * @class_locale_word: Class of the event6648 *6649 * This function subscribes for AEN for events beyond the @seq_num. It requests6650 * to be notified if and only if the event is of type @class_locale6651 */6652static int6653megasas_register_aen(struct megasas_instance *instance, u32 seq_num,6654 u32 class_locale_word)6655{6656 int ret_val;6657 struct megasas_cmd *cmd;6658 struct megasas_dcmd_frame *dcmd;6659 union megasas_evt_class_locale curr_aen;6660 union megasas_evt_class_locale prev_aen;6661 6662 /*6663 * If there an AEN pending already (aen_cmd), check if the6664 * class_locale of that pending AEN is inclusive of the new6665 * AEN request we currently have. If it is, then we don't have6666 * to do anything. In other words, whichever events the current6667 * AEN request is subscribing to, have already been subscribed6668 * to.6669 *6670 * If the old_cmd is _not_ inclusive, then we have to abort6671 * that command, form a class_locale that is superset of both6672 * old and current and re-issue to the FW6673 */6674 6675 curr_aen.word = class_locale_word;6676 6677 if (instance->aen_cmd) {6678 6679 prev_aen.word =6680 le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);6681 6682 if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||6683 (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {6684 dev_info(&instance->pdev->dev,6685 "%s %d out of range class %d send by application\n",6686 __func__, __LINE__, curr_aen.members.class);6687 return 0;6688 }6689 6690 /*6691 * A class whose enum value is smaller is inclusive of all6692 * higher values. If a PROGRESS (= -1) was previously6693 * registered, then a new registration requests for higher6694 * classes need not be sent to FW. They are automatically6695 * included.6696 *6697 * Locale numbers don't have such hierarchy. They are bitmap6698 * values6699 */6700 if ((prev_aen.members.class <= curr_aen.members.class) &&6701 !((prev_aen.members.locale & curr_aen.members.locale) ^6702 curr_aen.members.locale)) {6703 /*6704 * Previously issued event registration includes6705 * current request. Nothing to do.6706 */6707 return 0;6708 } else {6709 curr_aen.members.locale |= prev_aen.members.locale;6710 6711 if (prev_aen.members.class < curr_aen.members.class)6712 curr_aen.members.class = prev_aen.members.class;6713 6714 instance->aen_cmd->abort_aen = 1;6715 ret_val = megasas_issue_blocked_abort_cmd(instance,6716 instance->6717 aen_cmd, 30);6718 6719 if (ret_val) {6720 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort "6721 "previous AEN command\n");6722 return ret_val;6723 }6724 }6725 }6726 6727 cmd = megasas_get_cmd(instance);6728 6729 if (!cmd)6730 return -ENOMEM;6731 6732 dcmd = &cmd->frame->dcmd;6733 6734 memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail));6735 6736 /*6737 * Prepare DCMD for aen registration6738 */6739 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);6740 6741 dcmd->cmd = MFI_CMD_DCMD;6742 dcmd->cmd_status = 0x0;6743 dcmd->sge_count = 1;6744 dcmd->flags = MFI_FRAME_DIR_READ;6745 dcmd->timeout = 0;6746 dcmd->pad_0 = 0;6747 dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail));6748 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT);6749 dcmd->mbox.w[0] = cpu_to_le32(seq_num);6750 instance->last_seq_num = seq_num;6751 dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word);6752 6753 megasas_set_dma_settings(instance, dcmd, instance->evt_detail_h,6754 sizeof(struct megasas_evt_detail));6755 6756 if (instance->aen_cmd != NULL) {6757 megasas_return_cmd(instance, cmd);6758 return 0;6759 }6760 6761 /*6762 * Store reference to the cmd used to register for AEN. When an6763 * application wants us to register for AEN, we have to abort this6764 * cmd and re-register with a new EVENT LOCALE supplied by that app6765 */6766 instance->aen_cmd = cmd;6767 6768 /*6769 * Issue the aen registration frame6770 */6771 instance->instancet->issue_dcmd(instance, cmd);6772 6773 return 0;6774}6775 6776/* megasas_get_target_prop - Send DCMD with below details to firmware.6777 *6778 * This DCMD will fetch few properties of LD/system PD defined6779 * in MR_TARGET_DEV_PROPERTIES. eg. Queue Depth, MDTS value.6780 *6781 * DCMD send by drivers whenever new target is added to the OS.6782 *6783 * dcmd.opcode - MR_DCMD_DEV_GET_TARGET_PROP6784 * dcmd.mbox.b[0] - DCMD is to be fired for LD or system PD.6785 * 0 = system PD, 1 = LD.6786 * dcmd.mbox.s[1] - TargetID for LD/system PD.6787 * dcmd.sge IN - Pointer to return MR_TARGET_DEV_PROPERTIES.6788 *6789 * @instance: Adapter soft state6790 * @sdev: OS provided scsi device6791 *6792 * Returns 0 on success non-zero on failure.6793 */6794int6795megasas_get_target_prop(struct megasas_instance *instance,6796 struct scsi_device *sdev)6797{6798 int ret;6799 struct megasas_cmd *cmd;6800 struct megasas_dcmd_frame *dcmd;6801 u16 targetId = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) +6802 sdev->id;6803 6804 cmd = megasas_get_cmd(instance);6805 6806 if (!cmd) {6807 dev_err(&instance->pdev->dev,6808 "Failed to get cmd %s\n", __func__);6809 return -ENOMEM;6810 }6811 6812 dcmd = &cmd->frame->dcmd;6813 6814 memset(instance->tgt_prop, 0, sizeof(*instance->tgt_prop));6815 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);6816 dcmd->mbox.b[0] = MEGASAS_IS_LOGICAL(sdev);6817 6818 dcmd->mbox.s[1] = cpu_to_le16(targetId);6819 dcmd->cmd = MFI_CMD_DCMD;6820 dcmd->cmd_status = 0xFF;6821 dcmd->sge_count = 1;6822 dcmd->flags = MFI_FRAME_DIR_READ;6823 dcmd->timeout = 0;6824 dcmd->pad_0 = 0;6825 dcmd->data_xfer_len =6826 cpu_to_le32(sizeof(struct MR_TARGET_PROPERTIES));6827 dcmd->opcode = cpu_to_le32(MR_DCMD_DRV_GET_TARGET_PROP);6828 6829 megasas_set_dma_settings(instance, dcmd, instance->tgt_prop_h,6830 sizeof(struct MR_TARGET_PROPERTIES));6831 6832 if ((instance->adapter_type != MFI_SERIES) &&6833 !instance->mask_interrupts)6834 ret = megasas_issue_blocked_cmd(instance,6835 cmd, MFI_IO_TIMEOUT_SECS);6836 else6837 ret = megasas_issue_polled(instance, cmd);6838 6839 switch (ret) {6840 case DCMD_TIMEOUT:6841 switch (dcmd_timeout_ocr_possible(instance)) {6842 case INITIATE_OCR:6843 cmd->flags |= DRV_DCMD_SKIP_REFIRE;6844 mutex_unlock(&instance->reset_mutex);6845 megasas_reset_fusion(instance->host,6846 MFI_IO_TIMEOUT_OCR);6847 mutex_lock(&instance->reset_mutex);6848 break;6849 case KILL_ADAPTER:6850 megaraid_sas_kill_hba(instance);6851 break;6852 case IGNORE_TIMEOUT:6853 dev_info(&instance->pdev->dev,6854 "Ignore DCMD timeout: %s %d\n",6855 __func__, __LINE__);6856 break;6857 }6858 break;6859 6860 default:6861 megasas_return_cmd(instance, cmd);6862 }6863 if (ret != DCMD_SUCCESS)6864 dev_err(&instance->pdev->dev,6865 "return from %s %d return value %d\n",6866 __func__, __LINE__, ret);6867 6868 return ret;6869}6870 6871/**6872 * megasas_start_aen - Subscribes to AEN during driver load time6873 * @instance: Adapter soft state6874 */6875static int megasas_start_aen(struct megasas_instance *instance)6876{6877 struct megasas_evt_log_info eli;6878 union megasas_evt_class_locale class_locale;6879 6880 /*6881 * Get the latest sequence number from FW6882 */6883 memset(&eli, 0, sizeof(eli));6884 6885 if (megasas_get_seq_num(instance, &eli))6886 return -1;6887 6888 /*6889 * Register AEN with FW for latest sequence number plus 16890 */6891 class_locale.members.reserved = 0;6892 class_locale.members.locale = MR_EVT_LOCALE_ALL;6893 class_locale.members.class = MR_EVT_CLASS_DEBUG;6894 6895 return megasas_register_aen(instance,6896 le32_to_cpu(eli.newest_seq_num) + 1,6897 class_locale.word);6898}6899 6900/**6901 * megasas_io_attach - Attaches this driver to SCSI mid-layer6902 * @instance: Adapter soft state6903 */6904static int megasas_io_attach(struct megasas_instance *instance)6905{6906 struct Scsi_Host *host = instance->host;6907 6908 /*6909 * Export parameters required by SCSI mid-layer6910 */6911 host->unique_id = instance->unique_id;6912 host->can_queue = instance->max_scsi_cmds;6913 host->this_id = instance->init_id;6914 host->sg_tablesize = instance->max_num_sge;6915 6916 if (instance->fw_support_ieee)6917 instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE;6918 6919 /*6920 * Check if the module parameter value for max_sectors can be used6921 */6922 if (max_sectors && max_sectors < instance->max_sectors_per_req)6923 instance->max_sectors_per_req = max_sectors;6924 else {6925 if (max_sectors) {6926 if (((instance->pdev->device ==6927 PCI_DEVICE_ID_LSI_SAS1078GEN2) ||6928 (instance->pdev->device ==6929 PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&6930 (max_sectors <= MEGASAS_MAX_SECTORS)) {6931 instance->max_sectors_per_req = max_sectors;6932 } else {6933 dev_info(&instance->pdev->dev, "max_sectors should be > 0"6934 "and <= %d (or < 1MB for GEN2 controller)\n",6935 instance->max_sectors_per_req);6936 }6937 }6938 }6939 6940 host->max_sectors = instance->max_sectors_per_req;6941 host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN;6942 host->max_channel = MEGASAS_MAX_CHANNELS - 1;6943 host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL;6944 host->max_lun = MEGASAS_MAX_LUN;6945 host->max_cmd_len = 16;6946 6947 /* Use shared host tagset only for fusion adaptors6948 * if there are managed interrupts (smp affinity enabled case).6949 * Single msix_vectors in kdump, so shared host tag is also disabled.6950 */6951 6952 host->host_tagset = 0;6953 host->nr_hw_queues = 1;6954 6955 if ((instance->adapter_type != MFI_SERIES) &&6956 (instance->msix_vectors > instance->low_latency_index_start) &&6957 host_tagset_enable &&6958 instance->smp_affinity_enable) {6959 host->host_tagset = 1;6960 host->nr_hw_queues = instance->msix_vectors -6961 instance->low_latency_index_start + instance->iopoll_q_count;6962 if (instance->iopoll_q_count)6963 host->nr_maps = 3;6964 } else {6965 instance->iopoll_q_count = 0;6966 }6967 6968 dev_info(&instance->pdev->dev,6969 "Max firmware commands: %d shared with default "6970 "hw_queues = %d poll_queues %d\n", instance->max_fw_cmds,6971 host->nr_hw_queues - instance->iopoll_q_count,6972 instance->iopoll_q_count);6973 /*6974 * Notify the mid-layer about the new controller6975 */6976 if (scsi_add_host(host, &instance->pdev->dev)) {6977 dev_err(&instance->pdev->dev,6978 "Failed to add host from %s %d\n",6979 __func__, __LINE__);6980 return -ENODEV;6981 }6982 6983 return 0;6984}6985 6986/**6987 * megasas_set_dma_mask - Set DMA mask for supported controllers6988 *6989 * @instance: Adapter soft state6990 * Description:6991 *6992 * For Ventura, driver/FW will operate in 63bit DMA addresses.6993 *6994 * For invader-6995 * By default, driver/FW will operate in 32bit DMA addresses6996 * for consistent DMA mapping but if 32 bit consistent6997 * DMA mask fails, driver will try with 63 bit consistent6998 * mask provided FW is true 63bit DMA capable6999 *7000 * For older controllers(Thunderbolt and MFI based adapters)-7001 * driver/FW will operate in 32 bit consistent DMA addresses.7002 */7003static int7004megasas_set_dma_mask(struct megasas_instance *instance)7005{7006 u64 consistent_mask;7007 struct pci_dev *pdev;7008 u32 scratch_pad_1;7009 7010 pdev = instance->pdev;7011 consistent_mask = (instance->adapter_type >= VENTURA_SERIES) ?7012 DMA_BIT_MASK(63) : DMA_BIT_MASK(32);7013 7014 if (IS_DMA64) {7015 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(63)) &&7016 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))7017 goto fail_set_dma_mask;7018 7019 if ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) &&7020 (dma_set_coherent_mask(&pdev->dev, consistent_mask) &&7021 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))) {7022 /*7023 * If 32 bit DMA mask fails, then try for 64 bit mask7024 * for FW capable of handling 64 bit DMA.7025 */7026 scratch_pad_1 = megasas_readl7027 (instance, &instance->reg_set->outbound_scratch_pad_1);7028 7029 if (!(scratch_pad_1 & MR_CAN_HANDLE_64_BIT_DMA_OFFSET))7030 goto fail_set_dma_mask;7031 else if (dma_set_mask_and_coherent(&pdev->dev,7032 DMA_BIT_MASK(63)))7033 goto fail_set_dma_mask;7034 }7035 } else if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))7036 goto fail_set_dma_mask;7037 7038 if (pdev->dev.coherent_dma_mask == DMA_BIT_MASK(32))7039 instance->consistent_mask_64bit = false;7040 else7041 instance->consistent_mask_64bit = true;7042 7043 dev_info(&pdev->dev, "%s bit DMA mask and %s bit consistent mask\n",7044 ((*pdev->dev.dma_mask == DMA_BIT_MASK(63)) ? "63" : "32"),7045 (instance->consistent_mask_64bit ? "63" : "32"));7046 7047 return 0;7048 7049fail_set_dma_mask:7050 dev_err(&pdev->dev, "Failed to set DMA mask\n");7051 return -1;7052 7053}7054 7055/*7056 * megasas_set_adapter_type - Set adapter type.7057 * Supported controllers can be divided in7058 * different categories-7059 * enum MR_ADAPTER_TYPE {7060 * MFI_SERIES = 1,7061 * THUNDERBOLT_SERIES = 2,7062 * INVADER_SERIES = 3,7063 * VENTURA_SERIES = 4,7064 * AERO_SERIES = 5,7065 * };7066 * @instance: Adapter soft state7067 * return: void7068 */7069static inline void megasas_set_adapter_type(struct megasas_instance *instance)7070{7071 if ((instance->pdev->vendor == PCI_VENDOR_ID_DELL) &&7072 (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5)) {7073 instance->adapter_type = MFI_SERIES;7074 } else {7075 switch (instance->pdev->device) {7076 case PCI_DEVICE_ID_LSI_AERO_10E1:7077 case PCI_DEVICE_ID_LSI_AERO_10E2:7078 case PCI_DEVICE_ID_LSI_AERO_10E5:7079 case PCI_DEVICE_ID_LSI_AERO_10E6:7080 instance->adapter_type = AERO_SERIES;7081 break;7082 case PCI_DEVICE_ID_LSI_VENTURA:7083 case PCI_DEVICE_ID_LSI_CRUSADER:7084 case PCI_DEVICE_ID_LSI_HARPOON:7085 case PCI_DEVICE_ID_LSI_TOMCAT:7086 case PCI_DEVICE_ID_LSI_VENTURA_4PORT:7087 case PCI_DEVICE_ID_LSI_CRUSADER_4PORT:7088 instance->adapter_type = VENTURA_SERIES;7089 break;7090 case PCI_DEVICE_ID_LSI_FUSION:7091 case PCI_DEVICE_ID_LSI_PLASMA:7092 instance->adapter_type = THUNDERBOLT_SERIES;7093 break;7094 case PCI_DEVICE_ID_LSI_INVADER:7095 case PCI_DEVICE_ID_LSI_INTRUDER:7096 case PCI_DEVICE_ID_LSI_INTRUDER_24:7097 case PCI_DEVICE_ID_LSI_CUTLASS_52:7098 case PCI_DEVICE_ID_LSI_CUTLASS_53:7099 case PCI_DEVICE_ID_LSI_FURY:7100 instance->adapter_type = INVADER_SERIES;7101 break;7102 default: /* For all other supported controllers */7103 instance->adapter_type = MFI_SERIES;7104 break;7105 }7106 }7107}7108 7109static inline int megasas_alloc_mfi_ctrl_mem(struct megasas_instance *instance)7110{7111 instance->producer = dma_alloc_coherent(&instance->pdev->dev,7112 sizeof(u32), &instance->producer_h, GFP_KERNEL);7113 instance->consumer = dma_alloc_coherent(&instance->pdev->dev,7114 sizeof(u32), &instance->consumer_h, GFP_KERNEL);7115 7116 if (!instance->producer || !instance->consumer) {7117 dev_err(&instance->pdev->dev,7118 "Failed to allocate memory for producer, consumer\n");7119 return -1;7120 }7121 7122 *instance->producer = 0;7123 *instance->consumer = 0;7124 return 0;7125}7126 7127/**7128 * megasas_alloc_ctrl_mem - Allocate per controller memory for core data7129 * structures which are not common across MFI7130 * adapters and fusion adapters.7131 * For MFI based adapters, allocate producer and7132 * consumer buffers. For fusion adapters, allocate7133 * memory for fusion context.7134 * @instance: Adapter soft state7135 * return: 0 for SUCCESS7136 */7137static int megasas_alloc_ctrl_mem(struct megasas_instance *instance)7138{7139 instance->reply_map = kcalloc(nr_cpu_ids, sizeof(unsigned int),7140 GFP_KERNEL);7141 if (!instance->reply_map)7142 return -ENOMEM;7143 7144 switch (instance->adapter_type) {7145 case MFI_SERIES:7146 if (megasas_alloc_mfi_ctrl_mem(instance))7147 return -ENOMEM;7148 break;7149 case AERO_SERIES:7150 case VENTURA_SERIES:7151 case THUNDERBOLT_SERIES:7152 case INVADER_SERIES:7153 if (megasas_alloc_fusion_context(instance))7154 return -ENOMEM;7155 break;7156 }7157 7158 return 0;7159}7160 7161/*7162 * megasas_free_ctrl_mem - Free fusion context for fusion adapters and7163 * producer, consumer buffers for MFI adapters7164 *7165 * @instance - Adapter soft instance7166 *7167 */7168static inline void megasas_free_ctrl_mem(struct megasas_instance *instance)7169{7170 kfree(instance->reply_map);7171 if (instance->adapter_type == MFI_SERIES) {7172 if (instance->producer)7173 dma_free_coherent(&instance->pdev->dev, sizeof(u32),7174 instance->producer,7175 instance->producer_h);7176 if (instance->consumer)7177 dma_free_coherent(&instance->pdev->dev, sizeof(u32),7178 instance->consumer,7179 instance->consumer_h);7180 } else {7181 megasas_free_fusion_context(instance);7182 }7183}7184 7185/**7186 * megasas_alloc_ctrl_dma_buffers - Allocate consistent DMA buffers during7187 * driver load time7188 *7189 * @instance: Adapter soft instance7190 *7191 * @return: O for SUCCESS7192 */7193static inline7194int megasas_alloc_ctrl_dma_buffers(struct megasas_instance *instance)7195{7196 struct pci_dev *pdev = instance->pdev;7197 struct fusion_context *fusion = instance->ctrl_context;7198 7199 instance->evt_detail = dma_alloc_coherent(&pdev->dev,7200 sizeof(struct megasas_evt_detail),7201 &instance->evt_detail_h, GFP_KERNEL);7202 7203 if (!instance->evt_detail) {7204 dev_err(&instance->pdev->dev,7205 "Failed to allocate event detail buffer\n");7206 return -ENOMEM;7207 }7208 7209 if (fusion) {7210 fusion->ioc_init_request =7211 dma_alloc_coherent(&pdev->dev,7212 sizeof(struct MPI2_IOC_INIT_REQUEST),7213 &fusion->ioc_init_request_phys,7214 GFP_KERNEL);7215 7216 if (!fusion->ioc_init_request) {7217 dev_err(&pdev->dev,7218 "Failed to allocate ioc init request\n");7219 return -ENOMEM;7220 }7221 7222 instance->snapdump_prop = dma_alloc_coherent(&pdev->dev,7223 sizeof(struct MR_SNAPDUMP_PROPERTIES),7224 &instance->snapdump_prop_h, GFP_KERNEL);7225 7226 if (!instance->snapdump_prop)7227 dev_err(&pdev->dev,7228 "Failed to allocate snapdump properties buffer\n");7229 7230 instance->host_device_list_buf = dma_alloc_coherent(&pdev->dev,7231 HOST_DEVICE_LIST_SZ,7232 &instance->host_device_list_buf_h,7233 GFP_KERNEL);7234 7235 if (!instance->host_device_list_buf) {7236 dev_err(&pdev->dev,7237 "Failed to allocate targetid list buffer\n");7238 return -ENOMEM;7239 }7240 7241 }7242 7243 instance->pd_list_buf =7244 dma_alloc_coherent(&pdev->dev,7245 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),7246 &instance->pd_list_buf_h, GFP_KERNEL);7247 7248 if (!instance->pd_list_buf) {7249 dev_err(&pdev->dev, "Failed to allocate PD list buffer\n");7250 return -ENOMEM;7251 }7252 7253 instance->ctrl_info_buf =7254 dma_alloc_coherent(&pdev->dev,7255 sizeof(struct megasas_ctrl_info),7256 &instance->ctrl_info_buf_h, GFP_KERNEL);7257 7258 if (!instance->ctrl_info_buf) {7259 dev_err(&pdev->dev,7260 "Failed to allocate controller info buffer\n");7261 return -ENOMEM;7262 }7263 7264 instance->ld_list_buf =7265 dma_alloc_coherent(&pdev->dev,7266 sizeof(struct MR_LD_LIST),7267 &instance->ld_list_buf_h, GFP_KERNEL);7268 7269 if (!instance->ld_list_buf) {7270 dev_err(&pdev->dev, "Failed to allocate LD list buffer\n");7271 return -ENOMEM;7272 }7273 7274 instance->ld_targetid_list_buf =7275 dma_alloc_coherent(&pdev->dev,7276 sizeof(struct MR_LD_TARGETID_LIST),7277 &instance->ld_targetid_list_buf_h, GFP_KERNEL);7278 7279 if (!instance->ld_targetid_list_buf) {7280 dev_err(&pdev->dev,7281 "Failed to allocate LD targetid list buffer\n");7282 return -ENOMEM;7283 }7284 7285 if (!reset_devices) {7286 instance->system_info_buf =7287 dma_alloc_coherent(&pdev->dev,7288 sizeof(struct MR_DRV_SYSTEM_INFO),7289 &instance->system_info_h, GFP_KERNEL);7290 instance->pd_info =7291 dma_alloc_coherent(&pdev->dev,7292 sizeof(struct MR_PD_INFO),7293 &instance->pd_info_h, GFP_KERNEL);7294 instance->tgt_prop =7295 dma_alloc_coherent(&pdev->dev,7296 sizeof(struct MR_TARGET_PROPERTIES),7297 &instance->tgt_prop_h, GFP_KERNEL);7298 instance->crash_dump_buf =7299 dma_alloc_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,7300 &instance->crash_dump_h, GFP_KERNEL);7301 7302 if (!instance->system_info_buf)7303 dev_err(&instance->pdev->dev,7304 "Failed to allocate system info buffer\n");7305 7306 if (!instance->pd_info)7307 dev_err(&instance->pdev->dev,7308 "Failed to allocate pd_info buffer\n");7309 7310 if (!instance->tgt_prop)7311 dev_err(&instance->pdev->dev,7312 "Failed to allocate tgt_prop buffer\n");7313 7314 if (!instance->crash_dump_buf)7315 dev_err(&instance->pdev->dev,7316 "Failed to allocate crash dump buffer\n");7317 }7318 7319 return 0;7320}7321 7322/*7323 * megasas_free_ctrl_dma_buffers - Free consistent DMA buffers allocated7324 * during driver load time7325 *7326 * @instance- Adapter soft instance7327 *7328 */7329static inline7330void megasas_free_ctrl_dma_buffers(struct megasas_instance *instance)7331{7332 struct pci_dev *pdev = instance->pdev;7333 struct fusion_context *fusion = instance->ctrl_context;7334 7335 if (instance->evt_detail)7336 dma_free_coherent(&pdev->dev, sizeof(struct megasas_evt_detail),7337 instance->evt_detail,7338 instance->evt_detail_h);7339 7340 if (fusion && fusion->ioc_init_request)7341 dma_free_coherent(&pdev->dev,7342 sizeof(struct MPI2_IOC_INIT_REQUEST),7343 fusion->ioc_init_request,7344 fusion->ioc_init_request_phys);7345 7346 if (instance->pd_list_buf)7347 dma_free_coherent(&pdev->dev,7348 MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST),7349 instance->pd_list_buf,7350 instance->pd_list_buf_h);7351 7352 if (instance->ld_list_buf)7353 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_LIST),7354 instance->ld_list_buf,7355 instance->ld_list_buf_h);7356 7357 if (instance->ld_targetid_list_buf)7358 dma_free_coherent(&pdev->dev, sizeof(struct MR_LD_TARGETID_LIST),7359 instance->ld_targetid_list_buf,7360 instance->ld_targetid_list_buf_h);7361 7362 if (instance->ctrl_info_buf)7363 dma_free_coherent(&pdev->dev, sizeof(struct megasas_ctrl_info),7364 instance->ctrl_info_buf,7365 instance->ctrl_info_buf_h);7366 7367 if (instance->system_info_buf)7368 dma_free_coherent(&pdev->dev, sizeof(struct MR_DRV_SYSTEM_INFO),7369 instance->system_info_buf,7370 instance->system_info_h);7371 7372 if (instance->pd_info)7373 dma_free_coherent(&pdev->dev, sizeof(struct MR_PD_INFO),7374 instance->pd_info, instance->pd_info_h);7375 7376 if (instance->tgt_prop)7377 dma_free_coherent(&pdev->dev, sizeof(struct MR_TARGET_PROPERTIES),7378 instance->tgt_prop, instance->tgt_prop_h);7379 7380 if (instance->crash_dump_buf)7381 dma_free_coherent(&pdev->dev, CRASH_DMA_BUF_SIZE,7382 instance->crash_dump_buf,7383 instance->crash_dump_h);7384 7385 if (instance->snapdump_prop)7386 dma_free_coherent(&pdev->dev,7387 sizeof(struct MR_SNAPDUMP_PROPERTIES),7388 instance->snapdump_prop,7389 instance->snapdump_prop_h);7390 7391 if (instance->host_device_list_buf)7392 dma_free_coherent(&pdev->dev,7393 HOST_DEVICE_LIST_SZ,7394 instance->host_device_list_buf,7395 instance->host_device_list_buf_h);7396 7397}7398 7399/*7400 * megasas_init_ctrl_params - Initialize controller's instance7401 * parameters before FW init7402 * @instance - Adapter soft instance7403 * @return - void7404 */7405static inline void megasas_init_ctrl_params(struct megasas_instance *instance)7406{7407 instance->fw_crash_state = UNAVAILABLE;7408 7409 megasas_poll_wait_aen = 0;7410 instance->issuepend_done = 1;7411 atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL);7412 7413 /*7414 * Initialize locks and queues7415 */7416 INIT_LIST_HEAD(&instance->cmd_pool);7417 INIT_LIST_HEAD(&instance->internal_reset_pending_q);7418 7419 atomic_set(&instance->fw_outstanding, 0);7420 atomic64_set(&instance->total_io_count, 0);7421 7422 init_waitqueue_head(&instance->int_cmd_wait_q);7423 init_waitqueue_head(&instance->abort_cmd_wait_q);7424 7425 mutex_init(&instance->crashdump_lock);7426 spin_lock_init(&instance->mfi_pool_lock);7427 spin_lock_init(&instance->hba_lock);7428 spin_lock_init(&instance->stream_lock);7429 spin_lock_init(&instance->completion_lock);7430 7431 mutex_init(&instance->reset_mutex);7432 7433 if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) ||7434 (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY))7435 instance->flag_ieee = 1;7436 7437 instance->flag = 0;7438 instance->unload = 1;7439 instance->last_time = 0;7440 instance->disableOnlineCtrlReset = 1;7441 instance->UnevenSpanSupport = 0;7442 instance->smp_affinity_enable = smp_affinity_enable ? true : false;7443 instance->msix_load_balance = false;7444 7445 if (instance->adapter_type != MFI_SERIES)7446 INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq);7447 else7448 INIT_WORK(&instance->work_init, process_fw_state_change_wq);7449}7450 7451/**7452 * megasas_probe_one - PCI hotplug entry point7453 * @pdev: PCI device structure7454 * @id: PCI ids of supported hotplugged adapter7455 */7456static int megasas_probe_one(struct pci_dev *pdev,7457 const struct pci_device_id *id)7458{7459 int rval, pos;7460 struct Scsi_Host *host;7461 struct megasas_instance *instance;7462 u16 control = 0;7463 7464 switch (pdev->device) {7465 case PCI_DEVICE_ID_LSI_AERO_10E0:7466 case PCI_DEVICE_ID_LSI_AERO_10E3:7467 case PCI_DEVICE_ID_LSI_AERO_10E4:7468 case PCI_DEVICE_ID_LSI_AERO_10E7:7469 dev_err(&pdev->dev, "Adapter is in non secure mode\n");7470 return 1;7471 case PCI_DEVICE_ID_LSI_AERO_10E1:7472 case PCI_DEVICE_ID_LSI_AERO_10E5:7473 dev_info(&pdev->dev, "Adapter is in configurable secure mode\n");7474 break;7475 }7476 7477 /* Reset MSI-X in the kdump kernel */7478 if (reset_devices) {7479 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);7480 if (pos) {7481 pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS,7482 &control);7483 if (control & PCI_MSIX_FLAGS_ENABLE) {7484 dev_info(&pdev->dev, "resetting MSI-X\n");7485 pci_write_config_word(pdev,7486 pos + PCI_MSIX_FLAGS,7487 control &7488 ~PCI_MSIX_FLAGS_ENABLE);7489 }7490 }7491 }7492 7493 /*7494 * PCI prepping: enable device set bus mastering and dma mask7495 */7496 rval = pci_enable_device_mem(pdev);7497 7498 if (rval) {7499 return rval;7500 }7501 7502 pci_set_master(pdev);7503 7504 host = scsi_host_alloc(&megasas_template,7505 sizeof(struct megasas_instance));7506 7507 if (!host) {7508 dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n");7509 goto fail_alloc_instance;7510 }7511 7512 instance = (struct megasas_instance *)host->hostdata;7513 memset(instance, 0, sizeof(*instance));7514 atomic_set(&instance->fw_reset_no_pci_access, 0);7515 7516 /*7517 * Initialize PCI related and misc parameters7518 */7519 instance->pdev = pdev;7520 instance->host = host;7521 instance->unique_id = pci_dev_id(pdev);7522 instance->init_id = MEGASAS_DEFAULT_INIT_ID;7523 7524 megasas_set_adapter_type(instance);7525 7526 /*7527 * Initialize MFI Firmware7528 */7529 if (megasas_init_fw(instance))7530 goto fail_init_mfi;7531 7532 if (instance->requestorId) {7533 if (instance->PlasmaFW111) {7534 instance->vf_affiliation_111 =7535 dma_alloc_coherent(&pdev->dev,7536 sizeof(struct MR_LD_VF_AFFILIATION_111),7537 &instance->vf_affiliation_111_h,7538 GFP_KERNEL);7539 if (!instance->vf_affiliation_111)7540 dev_warn(&pdev->dev, "Can't allocate "7541 "memory for VF affiliation buffer\n");7542 } else {7543 instance->vf_affiliation =7544 dma_alloc_coherent(&pdev->dev,7545 (MAX_LOGICAL_DRIVES + 1) *7546 sizeof(struct MR_LD_VF_AFFILIATION),7547 &instance->vf_affiliation_h,7548 GFP_KERNEL);7549 if (!instance->vf_affiliation)7550 dev_warn(&pdev->dev, "Can't allocate "7551 "memory for VF affiliation buffer\n");7552 }7553 }7554 7555 /*7556 * Store instance in PCI softstate7557 */7558 pci_set_drvdata(pdev, instance);7559 7560 /*7561 * Add this controller to megasas_mgmt_info structure so that it7562 * can be exported to management applications7563 */7564 megasas_mgmt_info.count++;7565 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance;7566 megasas_mgmt_info.max_index++;7567 7568 /*7569 * Register with SCSI mid-layer7570 */7571 if (megasas_io_attach(instance))7572 goto fail_io_attach;7573 7574 instance->unload = 0;7575 /*7576 * Trigger SCSI to scan our drives7577 */7578 if (!instance->enable_fw_dev_list ||7579 (instance->host_device_list_buf->count > 0))7580 scsi_scan_host(host);7581 7582 /*7583 * Initiate AEN (Asynchronous Event Notification)7584 */7585 if (megasas_start_aen(instance)) {7586 dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n");7587 goto fail_start_aen;7588 }7589 7590 megasas_setup_debugfs(instance);7591 7592 /* Get current SR-IOV LD/VF affiliation */7593 if (instance->requestorId)7594 megasas_get_ld_vf_affiliation(instance, 1);7595 7596 return 0;7597 7598fail_start_aen:7599 instance->unload = 1;7600 scsi_remove_host(instance->host);7601fail_io_attach:7602 megasas_mgmt_info.count--;7603 megasas_mgmt_info.max_index--;7604 megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;7605 7606 if (instance->requestorId && !instance->skip_heartbeat_timer_del)7607 del_timer_sync(&instance->sriov_heartbeat_timer);7608 7609 instance->instancet->disable_intr(instance);7610 megasas_destroy_irqs(instance);7611 7612 if (instance->adapter_type != MFI_SERIES)7613 megasas_release_fusion(instance);7614 else7615 megasas_release_mfi(instance);7616 7617 if (instance->msix_vectors)7618 pci_free_irq_vectors(instance->pdev);7619 instance->msix_vectors = 0;7620 7621 if (instance->fw_crash_state != UNAVAILABLE)7622 megasas_free_host_crash_buffer(instance);7623 7624 if (instance->adapter_type != MFI_SERIES)7625 megasas_fusion_stop_watchdog(instance);7626fail_init_mfi:7627 scsi_host_put(host);7628fail_alloc_instance:7629 pci_disable_device(pdev);7630 7631 return -ENODEV;7632}7633 7634/**7635 * megasas_flush_cache - Requests FW to flush all its caches7636 * @instance: Adapter soft state7637 */7638static void megasas_flush_cache(struct megasas_instance *instance)7639{7640 struct megasas_cmd *cmd;7641 struct megasas_dcmd_frame *dcmd;7642 7643 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)7644 return;7645 7646 cmd = megasas_get_cmd(instance);7647 7648 if (!cmd)7649 return;7650 7651 dcmd = &cmd->frame->dcmd;7652 7653 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);7654 7655 dcmd->cmd = MFI_CMD_DCMD;7656 dcmd->cmd_status = 0x0;7657 dcmd->sge_count = 0;7658 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);7659 dcmd->timeout = 0;7660 dcmd->pad_0 = 0;7661 dcmd->data_xfer_len = 0;7662 dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH);7663 dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE;7664 7665 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)7666 != DCMD_SUCCESS) {7667 dev_err(&instance->pdev->dev,7668 "return from %s %d\n", __func__, __LINE__);7669 return;7670 }7671 7672 megasas_return_cmd(instance, cmd);7673}7674 7675/**7676 * megasas_shutdown_controller - Instructs FW to shutdown the controller7677 * @instance: Adapter soft state7678 * @opcode: Shutdown/Hibernate7679 */7680static void megasas_shutdown_controller(struct megasas_instance *instance,7681 u32 opcode)7682{7683 struct megasas_cmd *cmd;7684 struct megasas_dcmd_frame *dcmd;7685 7686 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR)7687 return;7688 7689 cmd = megasas_get_cmd(instance);7690 7691 if (!cmd)7692 return;7693 7694 if (instance->aen_cmd)7695 megasas_issue_blocked_abort_cmd(instance,7696 instance->aen_cmd, MFI_IO_TIMEOUT_SECS);7697 if (instance->map_update_cmd)7698 megasas_issue_blocked_abort_cmd(instance,7699 instance->map_update_cmd, MFI_IO_TIMEOUT_SECS);7700 if (instance->jbod_seq_cmd)7701 megasas_issue_blocked_abort_cmd(instance,7702 instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS);7703 7704 dcmd = &cmd->frame->dcmd;7705 7706 memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE);7707 7708 dcmd->cmd = MFI_CMD_DCMD;7709 dcmd->cmd_status = 0x0;7710 dcmd->sge_count = 0;7711 dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE);7712 dcmd->timeout = 0;7713 dcmd->pad_0 = 0;7714 dcmd->data_xfer_len = 0;7715 dcmd->opcode = cpu_to_le32(opcode);7716 7717 if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS)7718 != DCMD_SUCCESS) {7719 dev_err(&instance->pdev->dev,7720 "return from %s %d\n", __func__, __LINE__);7721 return;7722 }7723 7724 megasas_return_cmd(instance, cmd);7725}7726 7727/**7728 * megasas_suspend - driver suspend entry point7729 * @dev: Device structure7730 */7731static int __maybe_unused7732megasas_suspend(struct device *dev)7733{7734 struct megasas_instance *instance;7735 7736 instance = dev_get_drvdata(dev);7737 7738 if (!instance)7739 return 0;7740 7741 instance->unload = 1;7742 7743 dev_info(dev, "%s is called\n", __func__);7744 7745 /* Shutdown SR-IOV heartbeat timer */7746 if (instance->requestorId && !instance->skip_heartbeat_timer_del)7747 del_timer_sync(&instance->sriov_heartbeat_timer);7748 7749 /* Stop the FW fault detection watchdog */7750 if (instance->adapter_type != MFI_SERIES)7751 megasas_fusion_stop_watchdog(instance);7752 7753 megasas_flush_cache(instance);7754 megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN);7755 7756 /* cancel the delayed work if this work still in queue */7757 if (instance->ev != NULL) {7758 struct megasas_aen_event *ev = instance->ev;7759 cancel_delayed_work_sync(&ev->hotplug_work);7760 instance->ev = NULL;7761 }7762 7763 tasklet_kill(&instance->isr_tasklet);7764 7765 pci_set_drvdata(instance->pdev, instance);7766 instance->instancet->disable_intr(instance);7767 7768 megasas_destroy_irqs(instance);7769 7770 if (instance->msix_vectors)7771 pci_free_irq_vectors(instance->pdev);7772 7773 return 0;7774}7775 7776/**7777 * megasas_resume- driver resume entry point7778 * @dev: Device structure7779 */7780static int __maybe_unused7781megasas_resume(struct device *dev)7782{7783 int rval;7784 struct Scsi_Host *host;7785 struct megasas_instance *instance;7786 u32 status_reg;7787 7788 instance = dev_get_drvdata(dev);7789 7790 if (!instance)7791 return 0;7792 7793 host = instance->host;7794 7795 dev_info(dev, "%s is called\n", __func__);7796 7797 /*7798 * We expect the FW state to be READY7799 */7800 7801 if (megasas_transition_to_ready(instance, 0)) {7802 dev_info(&instance->pdev->dev,7803 "Failed to transition controller to ready from %s!\n",7804 __func__);7805 if (instance->adapter_type != MFI_SERIES) {7806 status_reg =7807 instance->instancet->read_fw_status_reg(instance);7808 if (!(status_reg & MFI_RESET_ADAPTER) ||7809 ((megasas_adp_reset_wait_for_ready7810 (instance, true, 0)) == FAILED))7811 goto fail_ready_state;7812 } else {7813 atomic_set(&instance->fw_reset_no_pci_access, 1);7814 instance->instancet->adp_reset7815 (instance, instance->reg_set);7816 atomic_set(&instance->fw_reset_no_pci_access, 0);7817 7818 /* waiting for about 30 seconds before retry */7819 ssleep(30);7820 7821 if (megasas_transition_to_ready(instance, 0))7822 goto fail_ready_state;7823 }7824 7825 dev_info(&instance->pdev->dev,7826 "FW restarted successfully from %s!\n",7827 __func__);7828 }7829 if (megasas_set_dma_mask(instance))7830 goto fail_set_dma_mask;7831 7832 /*7833 * Initialize MFI Firmware7834 */7835 7836 atomic_set(&instance->fw_outstanding, 0);7837 atomic_set(&instance->ldio_outstanding, 0);7838 7839 /* Now re-enable MSI-X */7840 if (instance->msix_vectors)7841 megasas_alloc_irq_vectors(instance);7842 7843 if (!instance->msix_vectors) {7844 rval = pci_alloc_irq_vectors(instance->pdev, 1, 1,7845 PCI_IRQ_INTX);7846 if (rval < 0)7847 goto fail_reenable_msix;7848 }7849 7850 megasas_setup_reply_map(instance);7851 7852 if (instance->adapter_type != MFI_SERIES) {7853 megasas_reset_reply_desc(instance);7854 if (megasas_ioc_init_fusion(instance)) {7855 megasas_free_cmds(instance);7856 megasas_free_cmds_fusion(instance);7857 goto fail_init_mfi;7858 }7859 if (!megasas_get_map_info(instance))7860 megasas_sync_map_info(instance);7861 } else {7862 *instance->producer = 0;7863 *instance->consumer = 0;7864 if (megasas_issue_init_mfi(instance))7865 goto fail_init_mfi;7866 }7867 7868 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)7869 goto fail_init_mfi;7870 7871 tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,7872 (unsigned long)instance);7873 7874 if (instance->msix_vectors ?7875 megasas_setup_irqs_msix(instance, 0) :7876 megasas_setup_irqs_ioapic(instance))7877 goto fail_init_mfi;7878 7879 if (instance->adapter_type != MFI_SERIES)7880 megasas_setup_irq_poll(instance);7881 7882 /* Re-launch SR-IOV heartbeat timer */7883 if (instance->requestorId) {7884 if (!megasas_sriov_start_heartbeat(instance, 0))7885 megasas_start_timer(instance);7886 else {7887 instance->skip_heartbeat_timer_del = 1;7888 goto fail_init_mfi;7889 }7890 }7891 7892 instance->instancet->enable_intr(instance);7893 megasas_setup_jbod_map(instance);7894 instance->unload = 0;7895 7896 /*7897 * Initiate AEN (Asynchronous Event Notification)7898 */7899 if (megasas_start_aen(instance))7900 dev_err(&instance->pdev->dev, "Start AEN failed\n");7901 7902 /* Re-launch FW fault watchdog */7903 if (instance->adapter_type != MFI_SERIES)7904 if (megasas_fusion_start_watchdog(instance) != SUCCESS)7905 goto fail_start_watchdog;7906 7907 return 0;7908 7909fail_start_watchdog:7910 if (instance->requestorId && !instance->skip_heartbeat_timer_del)7911 del_timer_sync(&instance->sriov_heartbeat_timer);7912fail_init_mfi:7913 megasas_free_ctrl_dma_buffers(instance);7914 megasas_free_ctrl_mem(instance);7915 scsi_host_put(host);7916 7917fail_reenable_msix:7918fail_set_dma_mask:7919fail_ready_state:7920 7921 return -ENODEV;7922}7923 7924static inline int7925megasas_wait_for_adapter_operational(struct megasas_instance *instance)7926{7927 int wait_time = MEGASAS_RESET_WAIT_TIME * 2;7928 int i;7929 u8 adp_state;7930 7931 for (i = 0; i < wait_time; i++) {7932 adp_state = atomic_read(&instance->adprecovery);7933 if ((adp_state == MEGASAS_HBA_OPERATIONAL) ||7934 (adp_state == MEGASAS_HW_CRITICAL_ERROR))7935 break;7936 7937 if (!(i % MEGASAS_RESET_NOTICE_INTERVAL))7938 dev_notice(&instance->pdev->dev, "waiting for controller reset to finish\n");7939 7940 msleep(1000);7941 }7942 7943 if (adp_state != MEGASAS_HBA_OPERATIONAL) {7944 dev_info(&instance->pdev->dev,7945 "%s HBA failed to become operational, adp_state %d\n",7946 __func__, adp_state);7947 return 1;7948 }7949 7950 return 0;7951}7952 7953/**7954 * megasas_detach_one - PCI hot"un"plug entry point7955 * @pdev: PCI device structure7956 */7957static void megasas_detach_one(struct pci_dev *pdev)7958{7959 int i;7960 struct Scsi_Host *host;7961 struct megasas_instance *instance;7962 struct fusion_context *fusion;7963 size_t pd_seq_map_sz;7964 7965 instance = pci_get_drvdata(pdev);7966 7967 if (!instance)7968 return;7969 7970 host = instance->host;7971 fusion = instance->ctrl_context;7972 7973 /* Shutdown SR-IOV heartbeat timer */7974 if (instance->requestorId && !instance->skip_heartbeat_timer_del)7975 del_timer_sync(&instance->sriov_heartbeat_timer);7976 7977 /* Stop the FW fault detection watchdog */7978 if (instance->adapter_type != MFI_SERIES)7979 megasas_fusion_stop_watchdog(instance);7980 7981 if (instance->fw_crash_state != UNAVAILABLE)7982 megasas_free_host_crash_buffer(instance);7983 scsi_remove_host(instance->host);7984 instance->unload = 1;7985 7986 if (megasas_wait_for_adapter_operational(instance))7987 goto skip_firing_dcmds;7988 7989 megasas_flush_cache(instance);7990 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);7991 7992skip_firing_dcmds:7993 /* cancel the delayed work if this work still in queue*/7994 if (instance->ev != NULL) {7995 struct megasas_aen_event *ev = instance->ev;7996 cancel_delayed_work_sync(&ev->hotplug_work);7997 instance->ev = NULL;7998 }7999 8000 /* cancel all wait events */8001 wake_up_all(&instance->int_cmd_wait_q);8002 8003 tasklet_kill(&instance->isr_tasklet);8004 8005 /*8006 * Take the instance off the instance array. Note that we will not8007 * decrement the max_index. We let this array be sparse array8008 */8009 for (i = 0; i < megasas_mgmt_info.max_index; i++) {8010 if (megasas_mgmt_info.instance[i] == instance) {8011 megasas_mgmt_info.count--;8012 megasas_mgmt_info.instance[i] = NULL;8013 8014 break;8015 }8016 }8017 8018 instance->instancet->disable_intr(instance);8019 8020 megasas_destroy_irqs(instance);8021 8022 if (instance->msix_vectors)8023 pci_free_irq_vectors(instance->pdev);8024 8025 if (instance->adapter_type >= VENTURA_SERIES) {8026 for (i = 0; i < MAX_LOGICAL_DRIVES_EXT; ++i)8027 kfree(fusion->stream_detect_by_ld[i]);8028 kfree(fusion->stream_detect_by_ld);8029 fusion->stream_detect_by_ld = NULL;8030 }8031 8032 8033 if (instance->adapter_type != MFI_SERIES) {8034 megasas_release_fusion(instance);8035 pd_seq_map_sz =8036 struct_size_t(struct MR_PD_CFG_SEQ_NUM_SYNC,8037 seq, MAX_PHYSICAL_DEVICES);8038 for (i = 0; i < 2 ; i++) {8039 if (fusion->ld_map[i])8040 dma_free_coherent(&instance->pdev->dev,8041 fusion->max_map_sz,8042 fusion->ld_map[i],8043 fusion->ld_map_phys[i]);8044 if (fusion->ld_drv_map[i]) {8045 if (is_vmalloc_addr(fusion->ld_drv_map[i]))8046 vfree(fusion->ld_drv_map[i]);8047 else8048 free_pages((ulong)fusion->ld_drv_map[i],8049 fusion->drv_map_pages);8050 }8051 8052 if (fusion->pd_seq_sync[i])8053 dma_free_coherent(&instance->pdev->dev,8054 pd_seq_map_sz,8055 fusion->pd_seq_sync[i],8056 fusion->pd_seq_phys[i]);8057 }8058 } else {8059 megasas_release_mfi(instance);8060 }8061 8062 if (instance->vf_affiliation)8063 dma_free_coherent(&pdev->dev, (MAX_LOGICAL_DRIVES + 1) *8064 sizeof(struct MR_LD_VF_AFFILIATION),8065 instance->vf_affiliation,8066 instance->vf_affiliation_h);8067 8068 if (instance->vf_affiliation_111)8069 dma_free_coherent(&pdev->dev,8070 sizeof(struct MR_LD_VF_AFFILIATION_111),8071 instance->vf_affiliation_111,8072 instance->vf_affiliation_111_h);8073 8074 if (instance->hb_host_mem)8075 dma_free_coherent(&pdev->dev, sizeof(struct MR_CTRL_HB_HOST_MEM),8076 instance->hb_host_mem,8077 instance->hb_host_mem_h);8078 8079 megasas_free_ctrl_dma_buffers(instance);8080 8081 megasas_free_ctrl_mem(instance);8082 8083 megasas_destroy_debugfs(instance);8084 8085 scsi_host_put(host);8086 8087 pci_disable_device(pdev);8088}8089 8090/**8091 * megasas_shutdown - Shutdown entry point8092 * @pdev: PCI device structure8093 */8094static void megasas_shutdown(struct pci_dev *pdev)8095{8096 struct megasas_instance *instance = pci_get_drvdata(pdev);8097 8098 if (!instance)8099 return;8100 8101 instance->unload = 1;8102 8103 if (megasas_wait_for_adapter_operational(instance))8104 goto skip_firing_dcmds;8105 8106 megasas_flush_cache(instance);8107 megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN);8108 8109skip_firing_dcmds:8110 instance->instancet->disable_intr(instance);8111 megasas_destroy_irqs(instance);8112 8113 if (instance->msix_vectors)8114 pci_free_irq_vectors(instance->pdev);8115}8116 8117/*8118 * megasas_mgmt_open - char node "open" entry point8119 * @inode: char node inode8120 * @filep: char node file8121 */8122static int megasas_mgmt_open(struct inode *inode, struct file *filep)8123{8124 /*8125 * Allow only those users with admin rights8126 */8127 if (!capable(CAP_SYS_ADMIN))8128 return -EACCES;8129 8130 return 0;8131}8132 8133/*8134 * megasas_mgmt_fasync - Async notifier registration from applications8135 * @fd: char node file descriptor number8136 * @filep: char node file8137 * @mode: notifier on/off8138 *8139 * This function adds the calling process to a driver global queue. When an8140 * event occurs, SIGIO will be sent to all processes in this queue.8141 */8142static int megasas_mgmt_fasync(int fd, struct file *filep, int mode)8143{8144 int rc;8145 8146 mutex_lock(&megasas_async_queue_mutex);8147 8148 rc = fasync_helper(fd, filep, mode, &megasas_async_queue);8149 8150 mutex_unlock(&megasas_async_queue_mutex);8151 8152 if (rc >= 0) {8153 /* For sanity check when we get ioctl */8154 filep->private_data = filep;8155 return 0;8156 }8157 8158 printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc);8159 8160 return rc;8161}8162 8163/*8164 * megasas_mgmt_poll - char node "poll" entry point8165 * @filep: char node file8166 * @wait: Events to poll for8167 */8168static __poll_t megasas_mgmt_poll(struct file *file, poll_table *wait)8169{8170 __poll_t mask;8171 unsigned long flags;8172 8173 poll_wait(file, &megasas_poll_wait, wait);8174 spin_lock_irqsave(&poll_aen_lock, flags);8175 if (megasas_poll_wait_aen)8176 mask = (EPOLLIN | EPOLLRDNORM);8177 else8178 mask = 0;8179 megasas_poll_wait_aen = 0;8180 spin_unlock_irqrestore(&poll_aen_lock, flags);8181 return mask;8182}8183 8184/*8185 * megasas_set_crash_dump_params_ioctl:8186 * Send CRASH_DUMP_MODE DCMD to all controllers8187 * @cmd: MFI command frame8188 */8189 8190static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd)8191{8192 struct megasas_instance *local_instance;8193 int i, error = 0;8194 int crash_support;8195 8196 crash_support = cmd->frame->dcmd.mbox.w[0];8197 8198 for (i = 0; i < megasas_mgmt_info.max_index; i++) {8199 local_instance = megasas_mgmt_info.instance[i];8200 if (local_instance && local_instance->crash_dump_drv_support) {8201 if ((atomic_read(&local_instance->adprecovery) ==8202 MEGASAS_HBA_OPERATIONAL) &&8203 !megasas_set_crash_dump_params(local_instance,8204 crash_support)) {8205 local_instance->crash_dump_app_support =8206 crash_support;8207 dev_info(&local_instance->pdev->dev,8208 "Application firmware crash "8209 "dump mode set success\n");8210 error = 0;8211 } else {8212 dev_info(&local_instance->pdev->dev,8213 "Application firmware crash "8214 "dump mode set failed\n");8215 error = -1;8216 }8217 }8218 }8219 return error;8220}8221 8222/**8223 * megasas_mgmt_fw_ioctl - Issues management ioctls to FW8224 * @instance: Adapter soft state8225 * @user_ioc: User's ioctl packet8226 * @ioc: ioctl packet8227 */8228static int8229megasas_mgmt_fw_ioctl(struct megasas_instance *instance,8230 struct megasas_iocpacket __user * user_ioc,8231 struct megasas_iocpacket *ioc)8232{8233 struct megasas_sge64 *kern_sge64 = NULL;8234 struct megasas_sge32 *kern_sge32 = NULL;8235 struct megasas_cmd *cmd;8236 void *kbuff_arr[MAX_IOCTL_SGE];8237 dma_addr_t buf_handle = 0;8238 int error = 0, i;8239 void *sense = NULL;8240 dma_addr_t sense_handle;8241 void *sense_ptr;8242 u32 opcode = 0;8243 int ret = DCMD_SUCCESS;8244 8245 memset(kbuff_arr, 0, sizeof(kbuff_arr));8246 8247 if (ioc->sge_count > MAX_IOCTL_SGE) {8248 dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n",8249 ioc->sge_count, MAX_IOCTL_SGE);8250 return -EINVAL;8251 }8252 8253 if ((ioc->frame.hdr.cmd >= MFI_CMD_OP_COUNT) ||8254 ((ioc->frame.hdr.cmd == MFI_CMD_NVME) &&8255 !instance->support_nvme_passthru) ||8256 ((ioc->frame.hdr.cmd == MFI_CMD_TOOLBOX) &&8257 !instance->support_pci_lane_margining)) {8258 dev_err(&instance->pdev->dev,8259 "Received invalid ioctl command 0x%x\n",8260 ioc->frame.hdr.cmd);8261 return -ENOTSUPP;8262 }8263 8264 cmd = megasas_get_cmd(instance);8265 if (!cmd) {8266 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n");8267 return -ENOMEM;8268 }8269 8270 /*8271 * User's IOCTL packet has 2 frames (maximum). Copy those two8272 * frames into our cmd's frames. cmd->frame's context will get8273 * overwritten when we copy from user's frames. So set that value8274 * alone separately8275 */8276 memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);8277 cmd->frame->hdr.context = cpu_to_le32(cmd->index);8278 cmd->frame->hdr.pad_0 = 0;8279 8280 cmd->frame->hdr.flags &= (~MFI_FRAME_IEEE);8281 8282 if (instance->consistent_mask_64bit)8283 cmd->frame->hdr.flags |= cpu_to_le16((MFI_FRAME_SGL64 |8284 MFI_FRAME_SENSE64));8285 else8286 cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_SGL64 |8287 MFI_FRAME_SENSE64));8288 8289 if (cmd->frame->hdr.cmd == MFI_CMD_DCMD)8290 opcode = le32_to_cpu(cmd->frame->dcmd.opcode);8291 8292 if (opcode == MR_DCMD_CTRL_SHUTDOWN) {8293 mutex_lock(&instance->reset_mutex);8294 if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS) {8295 megasas_return_cmd(instance, cmd);8296 mutex_unlock(&instance->reset_mutex);8297 return -1;8298 }8299 mutex_unlock(&instance->reset_mutex);8300 }8301 8302 if (opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) {8303 error = megasas_set_crash_dump_params_ioctl(cmd);8304 megasas_return_cmd(instance, cmd);8305 return error;8306 }8307 8308 /*8309 * The management interface between applications and the fw uses8310 * MFI frames. E.g, RAID configuration changes, LD property changes8311 * etc are accomplishes through different kinds of MFI frames. The8312 * driver needs to care only about substituting user buffers with8313 * kernel buffers in SGLs. The location of SGL is embedded in the8314 * struct iocpacket itself.8315 */8316 if (instance->consistent_mask_64bit)8317 kern_sge64 = (struct megasas_sge64 *)8318 ((unsigned long)cmd->frame + ioc->sgl_off);8319 else8320 kern_sge32 = (struct megasas_sge32 *)8321 ((unsigned long)cmd->frame + ioc->sgl_off);8322 8323 /*8324 * For each user buffer, create a mirror buffer and copy in8325 */8326 for (i = 0; i < ioc->sge_count; i++) {8327 if (!ioc->sgl[i].iov_len)8328 continue;8329 8330 kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev,8331 ioc->sgl[i].iov_len,8332 &buf_handle, GFP_KERNEL);8333 if (!kbuff_arr[i]) {8334 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc "8335 "kernel SGL buffer for IOCTL\n");8336 error = -ENOMEM;8337 goto out;8338 }8339 8340 /*8341 * We don't change the dma_coherent_mask, so8342 * dma_alloc_coherent only returns 32bit addresses8343 */8344 if (instance->consistent_mask_64bit) {8345 kern_sge64[i].phys_addr = cpu_to_le64(buf_handle);8346 kern_sge64[i].length = cpu_to_le32(ioc->sgl[i].iov_len);8347 } else {8348 kern_sge32[i].phys_addr = cpu_to_le32(buf_handle);8349 kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len);8350 }8351 8352 /*8353 * We created a kernel buffer corresponding to the8354 * user buffer. Now copy in from the user buffer8355 */8356 if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base,8357 (u32) (ioc->sgl[i].iov_len))) {8358 error = -EFAULT;8359 goto out;8360 }8361 }8362 8363 if (ioc->sense_len) {8364 /* make sure the pointer is part of the frame */8365 if (ioc->sense_off >8366 (sizeof(union megasas_frame) - sizeof(__le64))) {8367 error = -EINVAL;8368 goto out;8369 }8370 8371 sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len,8372 &sense_handle, GFP_KERNEL);8373 if (!sense) {8374 error = -ENOMEM;8375 goto out;8376 }8377 8378 /* always store 64 bits regardless of addressing */8379 sense_ptr = (void *)cmd->frame + ioc->sense_off;8380 put_unaligned_le64(sense_handle, sense_ptr);8381 }8382 8383 /*8384 * Set the sync_cmd flag so that the ISR knows not to complete this8385 * cmd to the SCSI mid-layer8386 */8387 cmd->sync_cmd = 1;8388 8389 ret = megasas_issue_blocked_cmd(instance, cmd, 0);8390 switch (ret) {8391 case DCMD_INIT:8392 case DCMD_BUSY:8393 cmd->sync_cmd = 0;8394 dev_err(&instance->pdev->dev,8395 "return -EBUSY from %s %d cmd 0x%x opcode 0x%x cmd->cmd_status_drv 0x%x\n",8396 __func__, __LINE__, cmd->frame->hdr.cmd, opcode,8397 cmd->cmd_status_drv);8398 error = -EBUSY;8399 goto out;8400 }8401 8402 cmd->sync_cmd = 0;8403 8404 if (instance->unload == 1) {8405 dev_info(&instance->pdev->dev, "Driver unload is in progress "8406 "don't submit data to application\n");8407 goto out;8408 }8409 /*8410 * copy out the kernel buffers to user buffers8411 */8412 for (i = 0; i < ioc->sge_count; i++) {8413 if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i],8414 ioc->sgl[i].iov_len)) {8415 error = -EFAULT;8416 goto out;8417 }8418 }8419 8420 /*8421 * copy out the sense8422 */8423 if (ioc->sense_len) {8424 void __user *uptr;8425 /*8426 * sense_ptr points to the location that has the user8427 * sense buffer address8428 */8429 sense_ptr = (void *)ioc->frame.raw + ioc->sense_off;8430 if (in_compat_syscall())8431 uptr = compat_ptr(get_unaligned((compat_uptr_t *)8432 sense_ptr));8433 else8434 uptr = get_unaligned((void __user **)sense_ptr);8435 8436 if (copy_to_user(uptr, sense, ioc->sense_len)) {8437 dev_err(&instance->pdev->dev, "Failed to copy out to user "8438 "sense data\n");8439 error = -EFAULT;8440 goto out;8441 }8442 }8443 8444 /*8445 * copy the status codes returned by the fw8446 */8447 if (copy_to_user(&user_ioc->frame.hdr.cmd_status,8448 &cmd->frame->hdr.cmd_status, sizeof(u8))) {8449 dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n");8450 error = -EFAULT;8451 }8452 8453out:8454 if (sense) {8455 dma_free_coherent(&instance->pdev->dev, ioc->sense_len,8456 sense, sense_handle);8457 }8458 8459 for (i = 0; i < ioc->sge_count; i++) {8460 if (kbuff_arr[i]) {8461 if (instance->consistent_mask_64bit)8462 dma_free_coherent(&instance->pdev->dev,8463 le32_to_cpu(kern_sge64[i].length),8464 kbuff_arr[i],8465 le64_to_cpu(kern_sge64[i].phys_addr));8466 else8467 dma_free_coherent(&instance->pdev->dev,8468 le32_to_cpu(kern_sge32[i].length),8469 kbuff_arr[i],8470 le32_to_cpu(kern_sge32[i].phys_addr));8471 kbuff_arr[i] = NULL;8472 }8473 }8474 8475 megasas_return_cmd(instance, cmd);8476 return error;8477}8478 8479static struct megasas_iocpacket *8480megasas_compat_iocpacket_get_user(void __user *arg)8481{8482 struct megasas_iocpacket *ioc;8483 struct compat_megasas_iocpacket __user *cioc = arg;8484 size_t size;8485 int err = -EFAULT;8486 int i;8487 8488 ioc = kzalloc(sizeof(*ioc), GFP_KERNEL);8489 if (!ioc)8490 return ERR_PTR(-ENOMEM);8491 size = offsetof(struct megasas_iocpacket, frame) + sizeof(ioc->frame);8492 if (copy_from_user(ioc, arg, size))8493 goto out;8494 8495 for (i = 0; i < MAX_IOCTL_SGE; i++) {8496 compat_uptr_t iov_base;8497 8498 if (get_user(iov_base, &cioc->sgl[i].iov_base) ||8499 get_user(ioc->sgl[i].iov_len, &cioc->sgl[i].iov_len))8500 goto out;8501 8502 ioc->sgl[i].iov_base = compat_ptr(iov_base);8503 }8504 8505 return ioc;8506out:8507 kfree(ioc);8508 return ERR_PTR(err);8509}8510 8511static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)8512{8513 struct megasas_iocpacket __user *user_ioc =8514 (struct megasas_iocpacket __user *)arg;8515 struct megasas_iocpacket *ioc;8516 struct megasas_instance *instance;8517 int error;8518 8519 if (in_compat_syscall())8520 ioc = megasas_compat_iocpacket_get_user(user_ioc);8521 else8522 ioc = memdup_user(user_ioc, sizeof(struct megasas_iocpacket));8523 8524 if (IS_ERR(ioc))8525 return PTR_ERR(ioc);8526 8527 instance = megasas_lookup_instance(ioc->host_no);8528 if (!instance) {8529 error = -ENODEV;8530 goto out_kfree_ioc;8531 }8532 8533 /* Block ioctls in VF mode */8534 if (instance->requestorId && !allow_vf_ioctls) {8535 error = -ENODEV;8536 goto out_kfree_ioc;8537 }8538 8539 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {8540 dev_err(&instance->pdev->dev, "Controller in crit error\n");8541 error = -ENODEV;8542 goto out_kfree_ioc;8543 }8544 8545 if (instance->unload == 1) {8546 error = -ENODEV;8547 goto out_kfree_ioc;8548 }8549 8550 if (down_interruptible(&instance->ioctl_sem)) {8551 error = -ERESTARTSYS;8552 goto out_kfree_ioc;8553 }8554 8555 if (megasas_wait_for_adapter_operational(instance)) {8556 error = -ENODEV;8557 goto out_up;8558 }8559 8560 error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc);8561out_up:8562 up(&instance->ioctl_sem);8563 8564out_kfree_ioc:8565 kfree(ioc);8566 return error;8567}8568 8569static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg)8570{8571 struct megasas_instance *instance;8572 struct megasas_aen aen;8573 int error;8574 8575 if (file->private_data != file) {8576 printk(KERN_DEBUG "megasas: fasync_helper was not "8577 "called first\n");8578 return -EINVAL;8579 }8580 8581 if (copy_from_user(&aen, (void __user *)arg, sizeof(aen)))8582 return -EFAULT;8583 8584 instance = megasas_lookup_instance(aen.host_no);8585 8586 if (!instance)8587 return -ENODEV;8588 8589 if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) {8590 return -ENODEV;8591 }8592 8593 if (instance->unload == 1) {8594 return -ENODEV;8595 }8596 8597 if (megasas_wait_for_adapter_operational(instance))8598 return -ENODEV;8599 8600 mutex_lock(&instance->reset_mutex);8601 error = megasas_register_aen(instance, aen.seq_num,8602 aen.class_locale_word);8603 mutex_unlock(&instance->reset_mutex);8604 return error;8605}8606 8607/**8608 * megasas_mgmt_ioctl - char node ioctl entry point8609 * @file: char device file pointer8610 * @cmd: ioctl command8611 * @arg: ioctl command arguments address8612 */8613static long8614megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)8615{8616 switch (cmd) {8617 case MEGASAS_IOC_FIRMWARE:8618 return megasas_mgmt_ioctl_fw(file, arg);8619 8620 case MEGASAS_IOC_GET_AEN:8621 return megasas_mgmt_ioctl_aen(file, arg);8622 }8623 8624 return -ENOTTY;8625}8626 8627#ifdef CONFIG_COMPAT8628static long8629megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd,8630 unsigned long arg)8631{8632 switch (cmd) {8633 case MEGASAS_IOC_FIRMWARE32:8634 return megasas_mgmt_ioctl_fw(file, arg);8635 case MEGASAS_IOC_GET_AEN:8636 return megasas_mgmt_ioctl_aen(file, arg);8637 }8638 8639 return -ENOTTY;8640}8641#endif8642 8643/*8644 * File operations structure for management interface8645 */8646static const struct file_operations megasas_mgmt_fops = {8647 .owner = THIS_MODULE,8648 .open = megasas_mgmt_open,8649 .fasync = megasas_mgmt_fasync,8650 .unlocked_ioctl = megasas_mgmt_ioctl,8651 .poll = megasas_mgmt_poll,8652#ifdef CONFIG_COMPAT8653 .compat_ioctl = megasas_mgmt_compat_ioctl,8654#endif8655 .llseek = noop_llseek,8656};8657 8658static SIMPLE_DEV_PM_OPS(megasas_pm_ops, megasas_suspend, megasas_resume);8659 8660/*8661 * PCI hotplug support registration structure8662 */8663static struct pci_driver megasas_pci_driver = {8664 8665 .name = "megaraid_sas",8666 .id_table = megasas_pci_table,8667 .probe = megasas_probe_one,8668 .remove = megasas_detach_one,8669 .driver.pm = &megasas_pm_ops,8670 .shutdown = megasas_shutdown,8671};8672 8673/*8674 * Sysfs driver attributes8675 */8676static ssize_t version_show(struct device_driver *dd, char *buf)8677{8678 return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n",8679 MEGASAS_VERSION);8680}8681static DRIVER_ATTR_RO(version);8682 8683static ssize_t release_date_show(struct device_driver *dd, char *buf)8684{8685 return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n",8686 MEGASAS_RELDATE);8687}8688static DRIVER_ATTR_RO(release_date);8689 8690static ssize_t support_poll_for_event_show(struct device_driver *dd, char *buf)8691{8692 return sprintf(buf, "%u\n", support_poll_for_event);8693}8694static DRIVER_ATTR_RO(support_poll_for_event);8695 8696static ssize_t support_device_change_show(struct device_driver *dd, char *buf)8697{8698 return sprintf(buf, "%u\n", support_device_change);8699}8700static DRIVER_ATTR_RO(support_device_change);8701 8702static ssize_t dbg_lvl_show(struct device_driver *dd, char *buf)8703{8704 return sprintf(buf, "%u\n", megasas_dbg_lvl);8705}8706 8707static ssize_t dbg_lvl_store(struct device_driver *dd, const char *buf,8708 size_t count)8709{8710 int retval = count;8711 8712 if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) {8713 printk(KERN_ERR "megasas: could not set dbg_lvl\n");8714 retval = -EINVAL;8715 }8716 return retval;8717}8718static DRIVER_ATTR_RW(dbg_lvl);8719 8720static ssize_t8721support_nvme_encapsulation_show(struct device_driver *dd, char *buf)8722{8723 return sprintf(buf, "%u\n", support_nvme_encapsulation);8724}8725 8726static DRIVER_ATTR_RO(support_nvme_encapsulation);8727 8728static ssize_t8729support_pci_lane_margining_show(struct device_driver *dd, char *buf)8730{8731 return sprintf(buf, "%u\n", support_pci_lane_margining);8732}8733 8734static DRIVER_ATTR_RO(support_pci_lane_margining);8735 8736static inline void megasas_remove_scsi_device(struct scsi_device *sdev)8737{8738 sdev_printk(KERN_INFO, sdev, "SCSI device is removed\n");8739 scsi_remove_device(sdev);8740 scsi_device_put(sdev);8741}8742 8743/**8744 * megasas_update_device_list - Update the PD and LD device list from FW8745 * after an AEN event notification8746 * @instance: Adapter soft state8747 * @event_type: Indicates type of event (PD or LD event)8748 *8749 * @return: Success or failure8750 *8751 * Issue DCMDs to Firmware to update the internal device list in driver.8752 * Based on the FW support, driver sends the HOST_DEVICE_LIST or combination8753 * of PD_LIST/LD_LIST_QUERY DCMDs to get the device list.8754 */8755static8756int megasas_update_device_list(struct megasas_instance *instance,8757 int event_type)8758{8759 int dcmd_ret;8760 8761 if (instance->enable_fw_dev_list) {8762 return megasas_host_device_list_query(instance, false);8763 } else {8764 if (event_type & SCAN_PD_CHANNEL) {8765 dcmd_ret = megasas_get_pd_list(instance);8766 if (dcmd_ret != DCMD_SUCCESS)8767 return dcmd_ret;8768 }8769 8770 if (event_type & SCAN_VD_CHANNEL) {8771 if (!instance->requestorId ||8772 megasas_get_ld_vf_affiliation(instance, 0)) {8773 return megasas_ld_list_query(instance,8774 MR_LD_QUERY_TYPE_EXPOSED_TO_HOST);8775 }8776 }8777 }8778 return DCMD_SUCCESS;8779}8780 8781/**8782 * megasas_add_remove_devices - Add/remove devices to SCSI mid-layer8783 * after an AEN event notification8784 * @instance: Adapter soft state8785 * @scan_type: Indicates type of devices (PD/LD) to add8786 * @return void8787 */8788static8789void megasas_add_remove_devices(struct megasas_instance *instance,8790 int scan_type)8791{8792 int i, j;8793 u16 pd_index = 0;8794 u16 ld_index = 0;8795 u16 channel = 0, id = 0;8796 struct Scsi_Host *host;8797 struct scsi_device *sdev1;8798 struct MR_HOST_DEVICE_LIST *targetid_list = NULL;8799 struct MR_HOST_DEVICE_LIST_ENTRY *targetid_entry = NULL;8800 8801 host = instance->host;8802 8803 if (instance->enable_fw_dev_list) {8804 targetid_list = instance->host_device_list_buf;8805 for (i = 0; i < targetid_list->count; i++) {8806 targetid_entry = &targetid_list->host_device_list[i];8807 if (targetid_entry->flags.u.bits.is_sys_pd) {8808 channel = le16_to_cpu(targetid_entry->target_id) /8809 MEGASAS_MAX_DEV_PER_CHANNEL;8810 id = le16_to_cpu(targetid_entry->target_id) %8811 MEGASAS_MAX_DEV_PER_CHANNEL;8812 } else {8813 channel = MEGASAS_MAX_PD_CHANNELS +8814 (le16_to_cpu(targetid_entry->target_id) /8815 MEGASAS_MAX_DEV_PER_CHANNEL);8816 id = le16_to_cpu(targetid_entry->target_id) %8817 MEGASAS_MAX_DEV_PER_CHANNEL;8818 }8819 sdev1 = scsi_device_lookup(host, channel, id, 0);8820 if (!sdev1) {8821 scsi_add_device(host, channel, id, 0);8822 } else {8823 scsi_device_put(sdev1);8824 }8825 }8826 }8827 8828 if (scan_type & SCAN_PD_CHANNEL) {8829 for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) {8830 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {8831 pd_index = i * MEGASAS_MAX_DEV_PER_CHANNEL + j;8832 sdev1 = scsi_device_lookup(host, i, j, 0);8833 if (instance->pd_list[pd_index].driveState ==8834 MR_PD_STATE_SYSTEM) {8835 if (!sdev1)8836 scsi_add_device(host, i, j, 0);8837 else8838 scsi_device_put(sdev1);8839 } else {8840 if (sdev1)8841 megasas_remove_scsi_device(sdev1);8842 }8843 }8844 }8845 }8846 8847 if (scan_type & SCAN_VD_CHANNEL) {8848 for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) {8849 for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) {8850 ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j;8851 sdev1 = scsi_device_lookup(host,8852 MEGASAS_MAX_PD_CHANNELS + i, j, 0);8853 if (instance->ld_ids[ld_index] != 0xff) {8854 if (!sdev1)8855 scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0);8856 else8857 scsi_device_put(sdev1);8858 } else {8859 if (sdev1)8860 megasas_remove_scsi_device(sdev1);8861 }8862 }8863 }8864 }8865 8866}8867 8868static void8869megasas_aen_polling(struct work_struct *work)8870{8871 struct megasas_aen_event *ev =8872 container_of(work, struct megasas_aen_event, hotplug_work.work);8873 struct megasas_instance *instance = ev->instance;8874 union megasas_evt_class_locale class_locale;8875 int event_type = 0;8876 u32 seq_num;8877 u16 ld_target_id;8878 int error;8879 u8 dcmd_ret = DCMD_SUCCESS;8880 struct scsi_device *sdev1;8881 8882 if (!instance) {8883 printk(KERN_ERR "invalid instance!\n");8884 kfree(ev);8885 return;8886 }8887 8888 /* Don't run the event workqueue thread if OCR is running */8889 mutex_lock(&instance->reset_mutex);8890 8891 instance->ev = NULL;8892 if (instance->evt_detail) {8893 megasas_decode_evt(instance);8894 8895 switch (le32_to_cpu(instance->evt_detail->code)) {8896 8897 case MR_EVT_PD_INSERTED:8898 case MR_EVT_PD_REMOVED:8899 event_type = SCAN_PD_CHANNEL;8900 break;8901 8902 case MR_EVT_LD_OFFLINE:8903 case MR_EVT_LD_DELETED:8904 ld_target_id = instance->evt_detail->args.ld.target_id;8905 sdev1 = scsi_device_lookup(instance->host,8906 MEGASAS_MAX_PD_CHANNELS +8907 (ld_target_id / MEGASAS_MAX_DEV_PER_CHANNEL),8908 (ld_target_id % MEGASAS_MAX_DEV_PER_CHANNEL),8909 0);8910 if (sdev1)8911 megasas_remove_scsi_device(sdev1);8912 8913 event_type = SCAN_VD_CHANNEL;8914 break;8915 case MR_EVT_LD_CREATED:8916 event_type = SCAN_VD_CHANNEL;8917 break;8918 8919 case MR_EVT_CFG_CLEARED:8920 case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED:8921 case MR_EVT_FOREIGN_CFG_IMPORTED:8922 case MR_EVT_LD_STATE_CHANGE:8923 event_type = SCAN_PD_CHANNEL | SCAN_VD_CHANNEL;8924 dev_info(&instance->pdev->dev, "scanning for scsi%d...\n",8925 instance->host->host_no);8926 break;8927 8928 case MR_EVT_CTRL_PROP_CHANGED:8929 dcmd_ret = megasas_get_ctrl_info(instance);8930 if (dcmd_ret == DCMD_SUCCESS &&8931 instance->snapdump_wait_time) {8932 megasas_get_snapdump_properties(instance);8933 dev_info(&instance->pdev->dev,8934 "Snap dump wait time\t: %d\n",8935 instance->snapdump_wait_time);8936 }8937 break;8938 default:8939 event_type = 0;8940 break;8941 }8942 } else {8943 dev_err(&instance->pdev->dev, "invalid evt_detail!\n");8944 mutex_unlock(&instance->reset_mutex);8945 kfree(ev);8946 return;8947 }8948 8949 if (event_type)8950 dcmd_ret = megasas_update_device_list(instance, event_type);8951 8952 mutex_unlock(&instance->reset_mutex);8953 8954 if (event_type && dcmd_ret == DCMD_SUCCESS)8955 megasas_add_remove_devices(instance, event_type);8956 8957 if (dcmd_ret == DCMD_SUCCESS)8958 seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1;8959 else8960 seq_num = instance->last_seq_num;8961 8962 /* Register AEN with FW for latest sequence number plus 1 */8963 class_locale.members.reserved = 0;8964 class_locale.members.locale = MR_EVT_LOCALE_ALL;8965 class_locale.members.class = MR_EVT_CLASS_DEBUG;8966 8967 if (instance->aen_cmd != NULL) {8968 kfree(ev);8969 return;8970 }8971 8972 mutex_lock(&instance->reset_mutex);8973 error = megasas_register_aen(instance, seq_num,8974 class_locale.word);8975 if (error)8976 dev_err(&instance->pdev->dev,8977 "register aen failed error %x\n", error);8978 8979 mutex_unlock(&instance->reset_mutex);8980 kfree(ev);8981}8982 8983/**8984 * megasas_init - Driver load entry point8985 */8986static int __init megasas_init(void)8987{8988 int rval;8989 8990 /*8991 * Booted in kdump kernel, minimize memory footprints by8992 * disabling few features8993 */8994 if (reset_devices) {8995 msix_vectors = 1;8996 rdpq_enable = 0;8997 dual_qdepth_disable = 1;8998 poll_queues = 0;8999 }9000 9001 /*9002 * Announce driver version and other information9003 */9004 pr_info("megasas: %s\n", MEGASAS_VERSION);9005 9006 megasas_dbg_lvl = 0;9007 support_poll_for_event = 2;9008 support_device_change = 1;9009 support_nvme_encapsulation = true;9010 support_pci_lane_margining = true;9011 9012 memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));9013 9014 /*9015 * Register character device node9016 */9017 rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops);9018 9019 if (rval < 0) {9020 printk(KERN_DEBUG "megasas: failed to open device node\n");9021 return rval;9022 }9023 9024 megasas_mgmt_majorno = rval;9025 9026 megasas_init_debugfs();9027 9028 /*9029 * Register ourselves as PCI hotplug module9030 */9031 rval = pci_register_driver(&megasas_pci_driver);9032 9033 if (rval) {9034 printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n");9035 goto err_pcidrv;9036 }9037 9038 if ((event_log_level < MFI_EVT_CLASS_DEBUG) ||9039 (event_log_level > MFI_EVT_CLASS_DEAD)) {9040 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");9041 event_log_level = MFI_EVT_CLASS_CRITICAL;9042 }9043 9044 rval = driver_create_file(&megasas_pci_driver.driver,9045 &driver_attr_version);9046 if (rval)9047 goto err_dcf_attr_ver;9048 9049 rval = driver_create_file(&megasas_pci_driver.driver,9050 &driver_attr_release_date);9051 if (rval)9052 goto err_dcf_rel_date;9053 9054 rval = driver_create_file(&megasas_pci_driver.driver,9055 &driver_attr_support_poll_for_event);9056 if (rval)9057 goto err_dcf_support_poll_for_event;9058 9059 rval = driver_create_file(&megasas_pci_driver.driver,9060 &driver_attr_dbg_lvl);9061 if (rval)9062 goto err_dcf_dbg_lvl;9063 rval = driver_create_file(&megasas_pci_driver.driver,9064 &driver_attr_support_device_change);9065 if (rval)9066 goto err_dcf_support_device_change;9067 9068 rval = driver_create_file(&megasas_pci_driver.driver,9069 &driver_attr_support_nvme_encapsulation);9070 if (rval)9071 goto err_dcf_support_nvme_encapsulation;9072 9073 rval = driver_create_file(&megasas_pci_driver.driver,9074 &driver_attr_support_pci_lane_margining);9075 if (rval)9076 goto err_dcf_support_pci_lane_margining;9077 9078 return rval;9079 9080err_dcf_support_pci_lane_margining:9081 driver_remove_file(&megasas_pci_driver.driver,9082 &driver_attr_support_nvme_encapsulation);9083 9084err_dcf_support_nvme_encapsulation:9085 driver_remove_file(&megasas_pci_driver.driver,9086 &driver_attr_support_device_change);9087 9088err_dcf_support_device_change:9089 driver_remove_file(&megasas_pci_driver.driver,9090 &driver_attr_dbg_lvl);9091err_dcf_dbg_lvl:9092 driver_remove_file(&megasas_pci_driver.driver,9093 &driver_attr_support_poll_for_event);9094err_dcf_support_poll_for_event:9095 driver_remove_file(&megasas_pci_driver.driver,9096 &driver_attr_release_date);9097err_dcf_rel_date:9098 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);9099err_dcf_attr_ver:9100 pci_unregister_driver(&megasas_pci_driver);9101err_pcidrv:9102 megasas_exit_debugfs();9103 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");9104 return rval;9105}9106 9107/**9108 * megasas_exit - Driver unload entry point9109 */9110static void __exit megasas_exit(void)9111{9112 driver_remove_file(&megasas_pci_driver.driver,9113 &driver_attr_dbg_lvl);9114 driver_remove_file(&megasas_pci_driver.driver,9115 &driver_attr_support_poll_for_event);9116 driver_remove_file(&megasas_pci_driver.driver,9117 &driver_attr_support_device_change);9118 driver_remove_file(&megasas_pci_driver.driver,9119 &driver_attr_release_date);9120 driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);9121 driver_remove_file(&megasas_pci_driver.driver,9122 &driver_attr_support_nvme_encapsulation);9123 driver_remove_file(&megasas_pci_driver.driver,9124 &driver_attr_support_pci_lane_margining);9125 9126 pci_unregister_driver(&megasas_pci_driver);9127 megasas_exit_debugfs();9128 unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl");9129}9130 9131module_init(megasas_init);9132module_exit(megasas_exit);9133