| /* |
| * Linux MegaRAID driver for SAS based RAID controllers |
| * |
| * Copyright (c) 2003-2013 LSI Corporation |
| * Copyright (c) 2013-2014 Avago Technologies |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| * Authors: Avago Technologies |
| * Sreenivas Bagalkote |
| * Sumant Patro |
| * Bo Yang |
| * Adam Radford |
| * Kashyap Desai <kashyap.desai@avagotech.com> |
| * Sumit Saxena <sumit.saxena@avagotech.com> |
| * |
| * Send feedback to: megaraidlinux.pdl@avagotech.com |
| * |
| * Mail to: Avago Technologies, 350 West Trimble Road, Building 90, |
| * San Jose, California 95131 |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <linux/list.h> |
| #include <linux/moduleparam.h> |
| #include <linux/module.h> |
| #include <linux/spinlock.h> |
| #include <linux/interrupt.h> |
| #include <linux/delay.h> |
| #include <linux/uio.h> |
| #include <linux/slab.h> |
| #include <asm/uaccess.h> |
| #include <linux/fs.h> |
| #include <linux/compat.h> |
| #include <linux/blkdev.h> |
| #include <linux/mutex.h> |
| #include <linux/poll.h> |
| |
| #include <scsi/scsi.h> |
| #include <scsi/scsi_cmnd.h> |
| #include <scsi/scsi_device.h> |
| #include <scsi/scsi_host.h> |
| #include <scsi/scsi_tcq.h> |
| #include "megaraid_sas_fusion.h" |
| #include "megaraid_sas.h" |
| |
| /* |
| * Number of sectors per IO command |
| * Will be set in megasas_init_mfi if user does not provide |
| */ |
| static unsigned int max_sectors; |
| module_param_named(max_sectors, max_sectors, int, 0); |
| MODULE_PARM_DESC(max_sectors, |
| "Maximum number of sectors per IO command"); |
| |
| static int msix_disable; |
| module_param(msix_disable, int, S_IRUGO); |
| MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0"); |
| |
| static unsigned int msix_vectors; |
| module_param(msix_vectors, int, S_IRUGO); |
| MODULE_PARM_DESC(msix_vectors, "MSI-X max vector count. Default: Set by FW"); |
| |
| static int allow_vf_ioctls; |
| module_param(allow_vf_ioctls, int, S_IRUGO); |
| MODULE_PARM_DESC(allow_vf_ioctls, "Allow ioctls in SR-IOV VF mode. Default: 0"); |
| |
| static unsigned int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; |
| module_param(throttlequeuedepth, int, S_IRUGO); |
| MODULE_PARM_DESC(throttlequeuedepth, |
| "Adapter queue depth when throttled due to I/O timeout. Default: 16"); |
| |
| unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; |
| module_param(resetwaittime, int, S_IRUGO); |
| MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout " |
| "before resetting adapter. Default: 180"); |
| |
| int smp_affinity_enable = 1; |
| module_param(smp_affinity_enable, int, S_IRUGO); |
| MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disbale Default: enable(1)"); |
| |
| int rdpq_enable = 1; |
| module_param(rdpq_enable, int, S_IRUGO); |
| MODULE_PARM_DESC(rdpq_enable, " Allocate reply queue in chunks for large queue depth enable/disable Default: disable(0)"); |
| |
| unsigned int dual_qdepth_disable; |
| module_param(dual_qdepth_disable, int, S_IRUGO); |
| MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); |
| |
| unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; |
| module_param(scmd_timeout, int, S_IRUGO); |
| MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(MEGASAS_VERSION); |
| MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com"); |
| MODULE_DESCRIPTION("Avago MegaRAID SAS Driver"); |
| |
| int megasas_transition_to_ready(struct megasas_instance *instance, int ocr); |
| static int megasas_get_pd_list(struct megasas_instance *instance); |
| static int megasas_ld_list_query(struct megasas_instance *instance, |
| u8 query_type); |
| static int megasas_issue_init_mfi(struct megasas_instance *instance); |
| static int megasas_register_aen(struct megasas_instance *instance, |
| u32 seq_num, u32 class_locale_word); |
| static int |
| megasas_get_pd_info(struct megasas_instance *instance, u16 device_id); |
| /* |
| * PCI ID table for all supported controllers |
| */ |
| static struct pci_device_id megasas_pci_table[] = { |
| |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)}, |
| /* xscale IOP */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)}, |
| /* ppc IOP */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078DE)}, |
| /* ppc IOP */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)}, |
| /* gen2*/ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)}, |
| /* gen2*/ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)}, |
| /* skinny*/ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)}, |
| /* skinny*/ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)}, |
| /* xscale IOP, vega */ |
| {PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)}, |
| /* xscale IOP */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)}, |
| /* Fusion */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)}, |
| /* Plasma */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INVADER)}, |
| /* Invader */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FURY)}, |
| /* Fury */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER)}, |
| /* Intruder */ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_INTRUDER_24)}, |
| /* Intruder 24 port*/ |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_52)}, |
| {PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_CUTLASS_53)}, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, megasas_pci_table); |
| |
| static int megasas_mgmt_majorno; |
| struct megasas_mgmt_info megasas_mgmt_info; |
| static struct fasync_struct *megasas_async_queue; |
| static DEFINE_MUTEX(megasas_async_queue_mutex); |
| |
| static int megasas_poll_wait_aen; |
| static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait); |
| static u32 support_poll_for_event; |
| u32 megasas_dbg_lvl; |
| static u32 support_device_change; |
| |
| /* define lock for aen poll */ |
| spinlock_t poll_aen_lock; |
| |
| void |
| megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, |
| u8 alt_status); |
| static u32 |
| megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs); |
| static int |
| megasas_adp_reset_gen2(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *reg_set); |
| static irqreturn_t megasas_isr(int irq, void *devp); |
| static u32 |
| megasas_init_adapter_mfi(struct megasas_instance *instance); |
| u32 |
| megasas_build_and_issue_cmd(struct megasas_instance *instance, |
| struct scsi_cmnd *scmd); |
| static void megasas_complete_cmd_dpc(unsigned long instance_addr); |
| void |
| megasas_release_fusion(struct megasas_instance *instance); |
| int |
| megasas_ioc_init_fusion(struct megasas_instance *instance); |
| void |
| megasas_free_cmds_fusion(struct megasas_instance *instance); |
| u8 |
| megasas_get_map_info(struct megasas_instance *instance); |
| int |
| megasas_sync_map_info(struct megasas_instance *instance); |
| int |
| wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd, |
| int seconds); |
| void megasas_reset_reply_desc(struct megasas_instance *instance); |
| void megasas_fusion_ocr_wq(struct work_struct *work); |
| static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, |
| int initial); |
| int megasas_check_mpio_paths(struct megasas_instance *instance, |
| struct scsi_cmnd *scmd); |
| |
| int |
| megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd) |
| { |
| instance->instancet->fire_cmd(instance, |
| cmd->frame_phys_addr, 0, instance->reg_set); |
| return 0; |
| } |
| |
| /** |
| * megasas_get_cmd - Get a command from the free pool |
| * @instance: Adapter soft state |
| * |
| * Returns a free command from the pool |
| */ |
| struct megasas_cmd *megasas_get_cmd(struct megasas_instance |
| *instance) |
| { |
| unsigned long flags; |
| struct megasas_cmd *cmd = NULL; |
| |
| spin_lock_irqsave(&instance->mfi_pool_lock, flags); |
| |
| if (!list_empty(&instance->cmd_pool)) { |
| cmd = list_entry((&instance->cmd_pool)->next, |
| struct megasas_cmd, list); |
| list_del_init(&cmd->list); |
| } else { |
| dev_err(&instance->pdev->dev, "Command pool empty!\n"); |
| } |
| |
| spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); |
| return cmd; |
| } |
| |
| /** |
| * megasas_return_cmd - Return a cmd to free command pool |
| * @instance: Adapter soft state |
| * @cmd: Command packet to be returned to free command pool |
| */ |
| inline void |
| megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) |
| { |
| unsigned long flags; |
| u32 blk_tags; |
| struct megasas_cmd_fusion *cmd_fusion; |
| struct fusion_context *fusion = instance->ctrl_context; |
| |
| /* This flag is used only for fusion adapter. |
| * Wait for Interrupt for Polled mode DCMD |
| */ |
| if (cmd->flags & DRV_DCMD_POLLED_MODE) |
| return; |
| |
| spin_lock_irqsave(&instance->mfi_pool_lock, flags); |
| |
| if (fusion) { |
| blk_tags = instance->max_scsi_cmds + cmd->index; |
| cmd_fusion = fusion->cmd_list[blk_tags]; |
| megasas_return_cmd_fusion(instance, cmd_fusion); |
| } |
| cmd->scmd = NULL; |
| cmd->frame_count = 0; |
| cmd->flags = 0; |
| if (!fusion && reset_devices) |
| cmd->frame->hdr.cmd = MFI_CMD_INVALID; |
| list_add(&cmd->list, (&instance->cmd_pool)->next); |
| |
| spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); |
| |
| } |
| |
| static const char * |
| format_timestamp(uint32_t timestamp) |
| { |
| static char buffer[32]; |
| |
| if ((timestamp & 0xff000000) == 0xff000000) |
| snprintf(buffer, sizeof(buffer), "boot + %us", timestamp & |
| 0x00ffffff); |
| else |
| snprintf(buffer, sizeof(buffer), "%us", timestamp); |
| return buffer; |
| } |
| |
| static const char * |
| format_class(int8_t class) |
| { |
| static char buffer[6]; |
| |
| switch (class) { |
| case MFI_EVT_CLASS_DEBUG: |
| return "debug"; |
| case MFI_EVT_CLASS_PROGRESS: |
| return "progress"; |
| case MFI_EVT_CLASS_INFO: |
| return "info"; |
| case MFI_EVT_CLASS_WARNING: |
| return "WARN"; |
| case MFI_EVT_CLASS_CRITICAL: |
| return "CRIT"; |
| case MFI_EVT_CLASS_FATAL: |
| return "FATAL"; |
| case MFI_EVT_CLASS_DEAD: |
| return "DEAD"; |
| default: |
| snprintf(buffer, sizeof(buffer), "%d", class); |
| return buffer; |
| } |
| } |
| |
| /** |
| * megasas_decode_evt: Decode FW AEN event and print critical event |
| * for information. |
| * @instance: Adapter soft state |
| */ |
| static void |
| megasas_decode_evt(struct megasas_instance *instance) |
| { |
| struct megasas_evt_detail *evt_detail = instance->evt_detail; |
| union megasas_evt_class_locale class_locale; |
| class_locale.word = le32_to_cpu(evt_detail->cl.word); |
| |
| if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL) |
| dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n", |
| le32_to_cpu(evt_detail->seq_num), |
| format_timestamp(le32_to_cpu(evt_detail->time_stamp)), |
| (class_locale.members.locale), |
| format_class(class_locale.members.class), |
| evt_detail->description); |
| } |
| |
| /** |
| * The following functions are defined for xscale |
| * (deviceid : 1064R, PERC5) controllers |
| */ |
| |
| /** |
| * megasas_enable_intr_xscale - Enables interrupts |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_enable_intr_xscale(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| |
| regs = instance->reg_set; |
| writel(0, &(regs)->outbound_intr_mask); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_disable_intr_xscale -Disables interrupt |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_disable_intr_xscale(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| u32 mask = 0x1f; |
| |
| regs = instance->reg_set; |
| writel(mask, ®s->outbound_intr_mask); |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_read_fw_status_reg_xscale - returns the current FW status value |
| * @regs: MFI register set |
| */ |
| static u32 |
| megasas_read_fw_status_reg_xscale(struct megasas_register_set __iomem * regs) |
| { |
| return readl(&(regs)->outbound_msg_0); |
| } |
| /** |
| * megasas_clear_interrupt_xscale - Check & clear interrupt |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs) |
| { |
| u32 status; |
| u32 mfiStatus = 0; |
| |
| /* |
| * Check if it is our interrupt |
| */ |
| status = readl(®s->outbound_intr_status); |
| |
| if (status & MFI_OB_INTR_STATUS_MASK) |
| mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; |
| if (status & MFI_XSCALE_OMR0_CHANGE_INTERRUPT) |
| mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; |
| |
| /* |
| * Clear the interrupt by writing back the same value |
| */ |
| if (mfiStatus) |
| writel(status, ®s->outbound_intr_status); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_status); |
| |
| return mfiStatus; |
| } |
| |
| /** |
| * megasas_fire_cmd_xscale - Sends command to the FW |
| * @frame_phys_addr : Physical address of cmd |
| * @frame_count : Number of frames for the command |
| * @regs : MFI register set |
| */ |
| static inline void |
| megasas_fire_cmd_xscale(struct megasas_instance *instance, |
| dma_addr_t frame_phys_addr, |
| u32 frame_count, |
| struct megasas_register_set __iomem *regs) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| writel((frame_phys_addr >> 3)|(frame_count), |
| &(regs)->inbound_queue_port); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| } |
| |
| /** |
| * megasas_adp_reset_xscale - For controller reset |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_adp_reset_xscale(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *regs) |
| { |
| u32 i; |
| u32 pcidata; |
| |
| writel(MFI_ADP_RESET, ®s->inbound_doorbell); |
| |
| for (i = 0; i < 3; i++) |
| msleep(1000); /* sleep for 3 secs */ |
| pcidata = 0; |
| pci_read_config_dword(instance->pdev, MFI_1068_PCSR_OFFSET, &pcidata); |
| dev_notice(&instance->pdev->dev, "pcidata = %x\n", pcidata); |
| if (pcidata & 0x2) { |
| dev_notice(&instance->pdev->dev, "mfi 1068 offset read=%x\n", pcidata); |
| pcidata &= ~0x2; |
| pci_write_config_dword(instance->pdev, |
| MFI_1068_PCSR_OFFSET, pcidata); |
| |
| for (i = 0; i < 2; i++) |
| msleep(1000); /* need to wait 2 secs again */ |
| |
| pcidata = 0; |
| pci_read_config_dword(instance->pdev, |
| MFI_1068_FW_HANDSHAKE_OFFSET, &pcidata); |
| dev_notice(&instance->pdev->dev, "1068 offset handshake read=%x\n", pcidata); |
| if ((pcidata & 0xffff0000) == MFI_1068_FW_READY) { |
| dev_notice(&instance->pdev->dev, "1068 offset pcidt=%x\n", pcidata); |
| pcidata = 0; |
| pci_write_config_dword(instance->pdev, |
| MFI_1068_FW_HANDSHAKE_OFFSET, pcidata); |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * megasas_check_reset_xscale - For controller reset check |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_check_reset_xscale(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *regs) |
| { |
| if ((atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) && |
| (le32_to_cpu(*instance->consumer) == |
| MEGASAS_ADPRESET_INPROG_SIGN)) |
| return 1; |
| return 0; |
| } |
| |
| static struct megasas_instance_template megasas_instance_template_xscale = { |
| |
| .fire_cmd = megasas_fire_cmd_xscale, |
| .enable_intr = megasas_enable_intr_xscale, |
| .disable_intr = megasas_disable_intr_xscale, |
| .clear_intr = megasas_clear_intr_xscale, |
| .read_fw_status_reg = megasas_read_fw_status_reg_xscale, |
| .adp_reset = megasas_adp_reset_xscale, |
| .check_reset = megasas_check_reset_xscale, |
| .service_isr = megasas_isr, |
| .tasklet = megasas_complete_cmd_dpc, |
| .init_adapter = megasas_init_adapter_mfi, |
| .build_and_issue_cmd = megasas_build_and_issue_cmd, |
| .issue_dcmd = megasas_issue_dcmd, |
| }; |
| |
| /** |
| * This is the end of set of functions & definitions specific |
| * to xscale (deviceid : 1064R, PERC5) controllers |
| */ |
| |
| /** |
| * The following functions are defined for ppc (deviceid : 0x60) |
| * controllers |
| */ |
| |
| /** |
| * megasas_enable_intr_ppc - Enables interrupts |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_enable_intr_ppc(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| |
| regs = instance->reg_set; |
| writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); |
| |
| writel(~0x80000000, &(regs)->outbound_intr_mask); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_disable_intr_ppc - Disable interrupt |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_disable_intr_ppc(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| u32 mask = 0xFFFFFFFF; |
| |
| regs = instance->reg_set; |
| writel(mask, ®s->outbound_intr_mask); |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_read_fw_status_reg_ppc - returns the current FW status value |
| * @regs: MFI register set |
| */ |
| static u32 |
| megasas_read_fw_status_reg_ppc(struct megasas_register_set __iomem * regs) |
| { |
| return readl(&(regs)->outbound_scratch_pad); |
| } |
| |
| /** |
| * megasas_clear_interrupt_ppc - Check & clear interrupt |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs) |
| { |
| u32 status, mfiStatus = 0; |
| |
| /* |
| * Check if it is our interrupt |
| */ |
| status = readl(®s->outbound_intr_status); |
| |
| if (status & MFI_REPLY_1078_MESSAGE_INTERRUPT) |
| mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; |
| |
| if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) |
| mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; |
| |
| /* |
| * Clear the interrupt by writing back the same value |
| */ |
| writel(status, ®s->outbound_doorbell_clear); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_doorbell_clear); |
| |
| return mfiStatus; |
| } |
| |
| /** |
| * megasas_fire_cmd_ppc - Sends command to the FW |
| * @frame_phys_addr : Physical address of cmd |
| * @frame_count : Number of frames for the command |
| * @regs : MFI register set |
| */ |
| static inline void |
| megasas_fire_cmd_ppc(struct megasas_instance *instance, |
| dma_addr_t frame_phys_addr, |
| u32 frame_count, |
| struct megasas_register_set __iomem *regs) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| writel((frame_phys_addr | (frame_count<<1))|1, |
| &(regs)->inbound_queue_port); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| } |
| |
| /** |
| * megasas_check_reset_ppc - For controller reset check |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_check_reset_ppc(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *regs) |
| { |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
| return 1; |
| |
| return 0; |
| } |
| |
| static struct megasas_instance_template megasas_instance_template_ppc = { |
| |
| .fire_cmd = megasas_fire_cmd_ppc, |
| .enable_intr = megasas_enable_intr_ppc, |
| .disable_intr = megasas_disable_intr_ppc, |
| .clear_intr = megasas_clear_intr_ppc, |
| .read_fw_status_reg = megasas_read_fw_status_reg_ppc, |
| .adp_reset = megasas_adp_reset_xscale, |
| .check_reset = megasas_check_reset_ppc, |
| .service_isr = megasas_isr, |
| .tasklet = megasas_complete_cmd_dpc, |
| .init_adapter = megasas_init_adapter_mfi, |
| .build_and_issue_cmd = megasas_build_and_issue_cmd, |
| .issue_dcmd = megasas_issue_dcmd, |
| }; |
| |
| /** |
| * megasas_enable_intr_skinny - Enables interrupts |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_enable_intr_skinny(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| |
| regs = instance->reg_set; |
| writel(0xFFFFFFFF, &(regs)->outbound_intr_mask); |
| |
| writel(~MFI_SKINNY_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_disable_intr_skinny - Disables interrupt |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_disable_intr_skinny(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| u32 mask = 0xFFFFFFFF; |
| |
| regs = instance->reg_set; |
| writel(mask, ®s->outbound_intr_mask); |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_read_fw_status_reg_skinny - returns the current FW status value |
| * @regs: MFI register set |
| */ |
| static u32 |
| megasas_read_fw_status_reg_skinny(struct megasas_register_set __iomem *regs) |
| { |
| return readl(&(regs)->outbound_scratch_pad); |
| } |
| |
| /** |
| * megasas_clear_interrupt_skinny - Check & clear interrupt |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_clear_intr_skinny(struct megasas_register_set __iomem *regs) |
| { |
| u32 status; |
| u32 mfiStatus = 0; |
| |
| /* |
| * Check if it is our interrupt |
| */ |
| status = readl(®s->outbound_intr_status); |
| |
| if (!(status & MFI_SKINNY_ENABLE_INTERRUPT_MASK)) { |
| return 0; |
| } |
| |
| /* |
| * Check if it is our interrupt |
| */ |
| if ((megasas_read_fw_status_reg_skinny(regs) & MFI_STATE_MASK) == |
| MFI_STATE_FAULT) { |
| mfiStatus = MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; |
| } else |
| mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; |
| |
| /* |
| * Clear the interrupt by writing back the same value |
| */ |
| writel(status, ®s->outbound_intr_status); |
| |
| /* |
| * dummy read to flush PCI |
| */ |
| readl(®s->outbound_intr_status); |
| |
| return mfiStatus; |
| } |
| |
| /** |
| * megasas_fire_cmd_skinny - Sends command to the FW |
| * @frame_phys_addr : Physical address of cmd |
| * @frame_count : Number of frames for the command |
| * @regs : MFI register set |
| */ |
| static inline void |
| megasas_fire_cmd_skinny(struct megasas_instance *instance, |
| dma_addr_t frame_phys_addr, |
| u32 frame_count, |
| struct megasas_register_set __iomem *regs) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| writel(upper_32_bits(frame_phys_addr), |
| &(regs)->inbound_high_queue_port); |
| writel((lower_32_bits(frame_phys_addr) | (frame_count<<1))|1, |
| &(regs)->inbound_low_queue_port); |
| mmiowb(); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| } |
| |
| /** |
| * megasas_check_reset_skinny - For controller reset check |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_check_reset_skinny(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *regs) |
| { |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
| return 1; |
| |
| return 0; |
| } |
| |
| static struct megasas_instance_template megasas_instance_template_skinny = { |
| |
| .fire_cmd = megasas_fire_cmd_skinny, |
| .enable_intr = megasas_enable_intr_skinny, |
| .disable_intr = megasas_disable_intr_skinny, |
| .clear_intr = megasas_clear_intr_skinny, |
| .read_fw_status_reg = megasas_read_fw_status_reg_skinny, |
| .adp_reset = megasas_adp_reset_gen2, |
| .check_reset = megasas_check_reset_skinny, |
| .service_isr = megasas_isr, |
| .tasklet = megasas_complete_cmd_dpc, |
| .init_adapter = megasas_init_adapter_mfi, |
| .build_and_issue_cmd = megasas_build_and_issue_cmd, |
| .issue_dcmd = megasas_issue_dcmd, |
| }; |
| |
| |
| /** |
| * The following functions are defined for gen2 (deviceid : 0x78 0x79) |
| * controllers |
| */ |
| |
| /** |
| * megasas_enable_intr_gen2 - Enables interrupts |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_enable_intr_gen2(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| |
| regs = instance->reg_set; |
| writel(0xFFFFFFFF, &(regs)->outbound_doorbell_clear); |
| |
| /* write ~0x00000005 (4 & 1) to the intr mask*/ |
| writel(~MFI_GEN2_ENABLE_INTERRUPT_MASK, &(regs)->outbound_intr_mask); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_disable_intr_gen2 - Disables interrupt |
| * @regs: MFI register set |
| */ |
| static inline void |
| megasas_disable_intr_gen2(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *regs; |
| u32 mask = 0xFFFFFFFF; |
| |
| regs = instance->reg_set; |
| writel(mask, ®s->outbound_intr_mask); |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_mask); |
| } |
| |
| /** |
| * megasas_read_fw_status_reg_gen2 - returns the current FW status value |
| * @regs: MFI register set |
| */ |
| static u32 |
| megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs) |
| { |
| return readl(&(regs)->outbound_scratch_pad); |
| } |
| |
| /** |
| * megasas_clear_interrupt_gen2 - Check & clear interrupt |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_clear_intr_gen2(struct megasas_register_set __iomem *regs) |
| { |
| u32 status; |
| u32 mfiStatus = 0; |
| |
| /* |
| * Check if it is our interrupt |
| */ |
| status = readl(®s->outbound_intr_status); |
| |
| if (status & MFI_INTR_FLAG_REPLY_MESSAGE) { |
| mfiStatus = MFI_INTR_FLAG_REPLY_MESSAGE; |
| } |
| if (status & MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT) { |
| mfiStatus |= MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE; |
| } |
| |
| /* |
| * Clear the interrupt by writing back the same value |
| */ |
| if (mfiStatus) |
| writel(status, ®s->outbound_doorbell_clear); |
| |
| /* Dummy readl to force pci flush */ |
| readl(®s->outbound_intr_status); |
| |
| return mfiStatus; |
| } |
| /** |
| * megasas_fire_cmd_gen2 - Sends command to the FW |
| * @frame_phys_addr : Physical address of cmd |
| * @frame_count : Number of frames for the command |
| * @regs : MFI register set |
| */ |
| static inline void |
| megasas_fire_cmd_gen2(struct megasas_instance *instance, |
| dma_addr_t frame_phys_addr, |
| u32 frame_count, |
| struct megasas_register_set __iomem *regs) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| writel((frame_phys_addr | (frame_count<<1))|1, |
| &(regs)->inbound_queue_port); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| } |
| |
| /** |
| * megasas_adp_reset_gen2 - For controller reset |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_adp_reset_gen2(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *reg_set) |
| { |
| u32 retry = 0 ; |
| u32 HostDiag; |
| u32 __iomem *seq_offset = ®_set->seq_offset; |
| u32 __iomem *hostdiag_offset = ®_set->host_diag; |
| |
| if (instance->instancet == &megasas_instance_template_skinny) { |
| seq_offset = ®_set->fusion_seq_offset; |
| hostdiag_offset = ®_set->fusion_host_diag; |
| } |
| |
| writel(0, seq_offset); |
| writel(4, seq_offset); |
| writel(0xb, seq_offset); |
| writel(2, seq_offset); |
| writel(7, seq_offset); |
| writel(0xd, seq_offset); |
| |
| msleep(1000); |
| |
| HostDiag = (u32)readl(hostdiag_offset); |
| |
| while (!(HostDiag & DIAG_WRITE_ENABLE)) { |
| msleep(100); |
| HostDiag = (u32)readl(hostdiag_offset); |
| dev_notice(&instance->pdev->dev, "RESETGEN2: retry=%x, hostdiag=%x\n", |
| retry, HostDiag); |
| |
| if (retry++ >= 100) |
| return 1; |
| |
| } |
| |
| dev_notice(&instance->pdev->dev, "ADP_RESET_GEN2: HostDiag=%x\n", HostDiag); |
| |
| writel((HostDiag | DIAG_RESET_ADAPTER), hostdiag_offset); |
| |
| ssleep(10); |
| |
| HostDiag = (u32)readl(hostdiag_offset); |
| while (HostDiag & DIAG_RESET_ADAPTER) { |
| msleep(100); |
| HostDiag = (u32)readl(hostdiag_offset); |
| dev_notice(&instance->pdev->dev, "RESET_GEN2: retry=%x, hostdiag=%x\n", |
| retry, HostDiag); |
| |
| if (retry++ >= 1000) |
| return 1; |
| |
| } |
| return 0; |
| } |
| |
| /** |
| * megasas_check_reset_gen2 - For controller reset check |
| * @regs: MFI register set |
| */ |
| static int |
| megasas_check_reset_gen2(struct megasas_instance *instance, |
| struct megasas_register_set __iomem *regs) |
| { |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
| return 1; |
| |
| return 0; |
| } |
| |
| static struct megasas_instance_template megasas_instance_template_gen2 = { |
| |
| .fire_cmd = megasas_fire_cmd_gen2, |
| .enable_intr = megasas_enable_intr_gen2, |
| .disable_intr = megasas_disable_intr_gen2, |
| .clear_intr = megasas_clear_intr_gen2, |
| .read_fw_status_reg = megasas_read_fw_status_reg_gen2, |
| .adp_reset = megasas_adp_reset_gen2, |
| .check_reset = megasas_check_reset_gen2, |
| .service_isr = megasas_isr, |
| .tasklet = megasas_complete_cmd_dpc, |
| .init_adapter = megasas_init_adapter_mfi, |
| .build_and_issue_cmd = megasas_build_and_issue_cmd, |
| .issue_dcmd = megasas_issue_dcmd, |
| }; |
| |
| /** |
| * This is the end of set of functions & definitions |
| * specific to gen2 (deviceid : 0x78, 0x79) controllers |
| */ |
| |
| /* |
| * Template added for TB (Fusion) |
| */ |
| extern struct megasas_instance_template megasas_instance_template_fusion; |
| |
| /** |
| * megasas_issue_polled - Issues a polling command |
| * @instance: Adapter soft state |
| * @cmd: Command packet to be issued |
| * |
| * For polling, MFI requires the cmd_status to be set to MFI_STAT_INVALID_STATUS before posting. |
| */ |
| int |
| megasas_issue_polled(struct megasas_instance *instance, struct megasas_cmd *cmd) |
| { |
| struct megasas_header *frame_hdr = &cmd->frame->hdr; |
| |
| frame_hdr->cmd_status = MFI_STAT_INVALID_STATUS; |
| frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE); |
| |
| if ((atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) || |
| (instance->instancet->issue_dcmd(instance, cmd))) { |
| dev_err(&instance->pdev->dev, "Failed from %s %d\n", |
| __func__, __LINE__); |
| return DCMD_NOT_FIRED; |
| } |
| |
| return wait_and_poll(instance, cmd, instance->requestorId ? |
| MEGASAS_ROUTINE_WAIT_TIME_VF : MFI_IO_TIMEOUT_SECS); |
| } |
| |
| /** |
| * megasas_issue_blocked_cmd - Synchronous wrapper around regular FW cmds |
| * @instance: Adapter soft state |
| * @cmd: Command to be issued |
| * @timeout: Timeout in seconds |
| * |
| * This function waits on an event for the command to be returned from ISR. |
| * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs |
| * Used to issue ioctl commands. |
| */ |
| int |
| megasas_issue_blocked_cmd(struct megasas_instance *instance, |
| struct megasas_cmd *cmd, int timeout) |
| { |
| int ret = 0; |
| cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
| |
| if ((atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) || |
| (instance->instancet->issue_dcmd(instance, cmd))) { |
| dev_err(&instance->pdev->dev, "Failed from %s %d\n", |
| __func__, __LINE__); |
| return DCMD_NOT_FIRED; |
| } |
| |
| if (timeout) { |
| ret = wait_event_timeout(instance->int_cmd_wait_q, |
| cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); |
| if (!ret) { |
| dev_err(&instance->pdev->dev, "Failed from %s %d DCMD Timed out\n", |
| __func__, __LINE__); |
| return DCMD_TIMEOUT; |
| } |
| } else |
| wait_event(instance->int_cmd_wait_q, |
| cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); |
| |
| return (cmd->cmd_status_drv == MFI_STAT_OK) ? |
| DCMD_SUCCESS : DCMD_FAILED; |
| } |
| |
| /** |
| * megasas_issue_blocked_abort_cmd - Aborts previously issued cmd |
| * @instance: Adapter soft state |
| * @cmd_to_abort: Previously issued cmd to be aborted |
| * @timeout: Timeout in seconds |
| * |
| * MFI firmware can abort previously issued AEN comamnd (automatic event |
| * notification). The megasas_issue_blocked_abort_cmd() issues such abort |
| * cmd and waits for return status. |
| * Max wait time is MEGASAS_INTERNAL_CMD_WAIT_TIME secs |
| */ |
| static int |
| megasas_issue_blocked_abort_cmd(struct megasas_instance *instance, |
| struct megasas_cmd *cmd_to_abort, int timeout) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_abort_frame *abort_fr; |
| int ret = 0; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) |
| return -1; |
| |
| abort_fr = &cmd->frame->abort; |
| |
| /* |
| * Prepare and issue the abort frame |
| */ |
| abort_fr->cmd = MFI_CMD_ABORT; |
| abort_fr->cmd_status = MFI_STAT_INVALID_STATUS; |
| abort_fr->flags = cpu_to_le16(0); |
| abort_fr->abort_context = cpu_to_le32(cmd_to_abort->index); |
| abort_fr->abort_mfi_phys_addr_lo = |
| cpu_to_le32(lower_32_bits(cmd_to_abort->frame_phys_addr)); |
| abort_fr->abort_mfi_phys_addr_hi = |
| cpu_to_le32(upper_32_bits(cmd_to_abort->frame_phys_addr)); |
| |
| cmd->sync_cmd = 1; |
| cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
| |
| if ((atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) || |
| (instance->instancet->issue_dcmd(instance, cmd))) { |
| dev_err(&instance->pdev->dev, "Failed from %s %d\n", |
| __func__, __LINE__); |
| return DCMD_NOT_FIRED; |
| } |
| |
| if (timeout) { |
| ret = wait_event_timeout(instance->abort_cmd_wait_q, |
| cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS, timeout * HZ); |
| if (!ret) { |
| dev_err(&instance->pdev->dev, "Failed from %s %d Abort Timed out\n", |
| __func__, __LINE__); |
| return DCMD_TIMEOUT; |
| } |
| } else |
| wait_event(instance->abort_cmd_wait_q, |
| cmd->cmd_status_drv != MFI_STAT_INVALID_STATUS); |
| |
| cmd->sync_cmd = 0; |
| |
| megasas_return_cmd(instance, cmd); |
| return (cmd->cmd_status_drv == MFI_STAT_OK) ? |
| DCMD_SUCCESS : DCMD_FAILED; |
| } |
| |
| /** |
| * megasas_make_sgl32 - Prepares 32-bit SGL |
| * @instance: Adapter soft state |
| * @scp: SCSI command from the mid-layer |
| * @mfi_sgl: SGL to be filled in |
| * |
| * If successful, this function returns the number of SG elements. Otherwise, |
| * it returnes -1. |
| */ |
| static int |
| megasas_make_sgl32(struct megasas_instance *instance, struct scsi_cmnd *scp, |
| union megasas_sgl *mfi_sgl) |
| { |
| int i; |
| int sge_count; |
| struct scatterlist *os_sgl; |
| |
| sge_count = scsi_dma_map(scp); |
| BUG_ON(sge_count < 0); |
| |
| if (sge_count) { |
| scsi_for_each_sg(scp, os_sgl, sge_count, i) { |
| mfi_sgl->sge32[i].length = cpu_to_le32(sg_dma_len(os_sgl)); |
| mfi_sgl->sge32[i].phys_addr = cpu_to_le32(sg_dma_address(os_sgl)); |
| } |
| } |
| return sge_count; |
| } |
| |
| /** |
| * megasas_make_sgl64 - Prepares 64-bit SGL |
| * @instance: Adapter soft state |
| * @scp: SCSI command from the mid-layer |
| * @mfi_sgl: SGL to be filled in |
| * |
| * If successful, this function returns the number of SG elements. Otherwise, |
| * it returnes -1. |
| */ |
| static int |
| megasas_make_sgl64(struct megasas_instance *instance, struct scsi_cmnd *scp, |
| union megasas_sgl *mfi_sgl) |
| { |
| int i; |
| int sge_count; |
| struct scatterlist *os_sgl; |
| |
| sge_count = scsi_dma_map(scp); |
| BUG_ON(sge_count < 0); |
| |
| if (sge_count) { |
| scsi_for_each_sg(scp, os_sgl, sge_count, i) { |
| mfi_sgl->sge64[i].length = cpu_to_le32(sg_dma_len(os_sgl)); |
| mfi_sgl->sge64[i].phys_addr = cpu_to_le64(sg_dma_address(os_sgl)); |
| } |
| } |
| return sge_count; |
| } |
| |
| /** |
| * megasas_make_sgl_skinny - Prepares IEEE SGL |
| * @instance: Adapter soft state |
| * @scp: SCSI command from the mid-layer |
| * @mfi_sgl: SGL to be filled in |
| * |
| * If successful, this function returns the number of SG elements. Otherwise, |
| * it returnes -1. |
| */ |
| static int |
| megasas_make_sgl_skinny(struct megasas_instance *instance, |
| struct scsi_cmnd *scp, union megasas_sgl *mfi_sgl) |
| { |
| int i; |
| int sge_count; |
| struct scatterlist *os_sgl; |
| |
| sge_count = scsi_dma_map(scp); |
| |
| if (sge_count) { |
| scsi_for_each_sg(scp, os_sgl, sge_count, i) { |
| mfi_sgl->sge_skinny[i].length = |
| cpu_to_le32(sg_dma_len(os_sgl)); |
| mfi_sgl->sge_skinny[i].phys_addr = |
| cpu_to_le64(sg_dma_address(os_sgl)); |
| mfi_sgl->sge_skinny[i].flag = cpu_to_le32(0); |
| } |
| } |
| return sge_count; |
| } |
| |
| /** |
| * megasas_get_frame_count - Computes the number of frames |
| * @frame_type : type of frame- io or pthru frame |
| * @sge_count : number of sg elements |
| * |
| * Returns the number of frames required for numnber of sge's (sge_count) |
| */ |
| |
| static u32 megasas_get_frame_count(struct megasas_instance *instance, |
| u8 sge_count, u8 frame_type) |
| { |
| int num_cnt; |
| int sge_bytes; |
| u32 sge_sz; |
| u32 frame_count = 0; |
| |
| sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : |
| sizeof(struct megasas_sge32); |
| |
| if (instance->flag_ieee) { |
| sge_sz = sizeof(struct megasas_sge_skinny); |
| } |
| |
| /* |
| * Main frame can contain 2 SGEs for 64-bit SGLs and |
| * 3 SGEs for 32-bit SGLs for ldio & |
| * 1 SGEs for 64-bit SGLs and |
| * 2 SGEs for 32-bit SGLs for pthru frame |
| */ |
| if (unlikely(frame_type == PTHRU_FRAME)) { |
| if (instance->flag_ieee == 1) { |
| num_cnt = sge_count - 1; |
| } else if (IS_DMA64) |
| num_cnt = sge_count - 1; |
| else |
| num_cnt = sge_count - 2; |
| } else { |
| if (instance->flag_ieee == 1) { |
| num_cnt = sge_count - 1; |
| } else if (IS_DMA64) |
| num_cnt = sge_count - 2; |
| else |
| num_cnt = sge_count - 3; |
| } |
| |
| if (num_cnt > 0) { |
| sge_bytes = sge_sz * num_cnt; |
| |
| frame_count = (sge_bytes / MEGAMFI_FRAME_SIZE) + |
| ((sge_bytes % MEGAMFI_FRAME_SIZE) ? 1 : 0) ; |
| } |
| /* Main frame */ |
| frame_count += 1; |
| |
| if (frame_count > 7) |
| frame_count = 8; |
| return frame_count; |
| } |
| |
| /** |
| * megasas_build_dcdb - Prepares a direct cdb (DCDB) command |
| * @instance: Adapter soft state |
| * @scp: SCSI command |
| * @cmd: Command to be prepared in |
| * |
| * This function prepares CDB commands. These are typcially pass-through |
| * commands to the devices. |
| */ |
| static int |
| megasas_build_dcdb(struct megasas_instance *instance, struct scsi_cmnd *scp, |
| struct megasas_cmd *cmd) |
| { |
| u32 is_logical; |
| u32 device_id; |
| u16 flags = 0; |
| struct megasas_pthru_frame *pthru; |
| |
| is_logical = MEGASAS_IS_LOGICAL(scp); |
| device_id = MEGASAS_DEV_INDEX(scp); |
| pthru = (struct megasas_pthru_frame *)cmd->frame; |
| |
| if (scp->sc_data_direction == PCI_DMA_TODEVICE) |
| flags = MFI_FRAME_DIR_WRITE; |
| else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) |
| flags = MFI_FRAME_DIR_READ; |
| else if (scp->sc_data_direction == PCI_DMA_NONE) |
| flags = MFI_FRAME_DIR_NONE; |
| |
| if (instance->flag_ieee == 1) { |
| flags |= MFI_FRAME_IEEE; |
| } |
| |
| /* |
| * Prepare the DCDB frame |
| */ |
| pthru->cmd = (is_logical) ? MFI_CMD_LD_SCSI_IO : MFI_CMD_PD_SCSI_IO; |
| pthru->cmd_status = 0x0; |
| pthru->scsi_status = 0x0; |
| pthru->target_id = device_id; |
| pthru->lun = scp->device->lun; |
| pthru->cdb_len = scp->cmd_len; |
| pthru->timeout = 0; |
| pthru->pad_0 = 0; |
| pthru->flags = cpu_to_le16(flags); |
| pthru->data_xfer_len = cpu_to_le32(scsi_bufflen(scp)); |
| |
| memcpy(pthru->cdb, scp->cmnd, scp->cmd_len); |
| |
| /* |
| * If the command is for the tape device, set the |
| * pthru timeout to the os layer timeout value. |
| */ |
| if (scp->device->type == TYPE_TAPE) { |
| if ((scp->request->timeout / HZ) > 0xFFFF) |
| pthru->timeout = cpu_to_le16(0xFFFF); |
| else |
| pthru->timeout = cpu_to_le16(scp->request->timeout / HZ); |
| } |
| |
| /* |
| * Construct SGL |
| */ |
| if (instance->flag_ieee == 1) { |
| pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
| pthru->sge_count = megasas_make_sgl_skinny(instance, scp, |
| &pthru->sgl); |
| } else if (IS_DMA64) { |
| pthru->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
| pthru->sge_count = megasas_make_sgl64(instance, scp, |
| &pthru->sgl); |
| } else |
| pthru->sge_count = megasas_make_sgl32(instance, scp, |
| &pthru->sgl); |
| |
| if (pthru->sge_count > instance->max_num_sge) { |
| dev_err(&instance->pdev->dev, "DCDB too many SGE NUM=%x\n", |
| pthru->sge_count); |
| return 0; |
| } |
| |
| /* |
| * Sense info specific |
| */ |
| pthru->sense_len = SCSI_SENSE_BUFFERSIZE; |
| pthru->sense_buf_phys_addr_hi = |
| cpu_to_le32(upper_32_bits(cmd->sense_phys_addr)); |
| pthru->sense_buf_phys_addr_lo = |
| cpu_to_le32(lower_32_bits(cmd->sense_phys_addr)); |
| |
| /* |
| * Compute the total number of frames this command consumes. FW uses |
| * this number to pull sufficient number of frames from host memory. |
| */ |
| cmd->frame_count = megasas_get_frame_count(instance, pthru->sge_count, |
| PTHRU_FRAME); |
| |
| return cmd->frame_count; |
| } |
| |
| /** |
| * megasas_build_ldio - Prepares IOs to logical devices |
| * @instance: Adapter soft state |
| * @scp: SCSI command |
| * @cmd: Command to be prepared |
| * |
| * Frames (and accompanying SGLs) for regular SCSI IOs use this function. |
| */ |
| static int |
| megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp, |
| struct megasas_cmd *cmd) |
| { |
| u32 device_id; |
| u8 sc = scp->cmnd[0]; |
| u16 flags = 0; |
| struct megasas_io_frame *ldio; |
| |
| device_id = MEGASAS_DEV_INDEX(scp); |
| ldio = (struct megasas_io_frame *)cmd->frame; |
| |
| if (scp->sc_data_direction == PCI_DMA_TODEVICE) |
| flags = MFI_FRAME_DIR_WRITE; |
| else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) |
| flags = MFI_FRAME_DIR_READ; |
| |
| if (instance->flag_ieee == 1) { |
| flags |= MFI_FRAME_IEEE; |
| } |
| |
| /* |
| * Prepare the Logical IO frame: 2nd bit is zero for all read cmds |
| */ |
| ldio->cmd = (sc & 0x02) ? MFI_CMD_LD_WRITE : MFI_CMD_LD_READ; |
| ldio->cmd_status = 0x0; |
| ldio->scsi_status = 0x0; |
| ldio->target_id = device_id; |
| ldio->timeout = 0; |
| ldio->reserved_0 = 0; |
| ldio->pad_0 = 0; |
| ldio->flags = cpu_to_le16(flags); |
| ldio->start_lba_hi = 0; |
| ldio->access_byte = (scp->cmd_len != 6) ? scp->cmnd[1] : 0; |
| |
| /* |
| * 6-byte READ(0x08) or WRITE(0x0A) cdb |
| */ |
| if (scp->cmd_len == 6) { |
| ldio->lba_count = cpu_to_le32((u32) scp->cmnd[4]); |
| ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[1] << 16) | |
| ((u32) scp->cmnd[2] << 8) | |
| (u32) scp->cmnd[3]); |
| |
| ldio->start_lba_lo &= cpu_to_le32(0x1FFFFF); |
| } |
| |
| /* |
| * 10-byte READ(0x28) or WRITE(0x2A) cdb |
| */ |
| else if (scp->cmd_len == 10) { |
| ldio->lba_count = cpu_to_le32((u32) scp->cmnd[8] | |
| ((u32) scp->cmnd[7] << 8)); |
| ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | |
| ((u32) scp->cmnd[3] << 16) | |
| ((u32) scp->cmnd[4] << 8) | |
| (u32) scp->cmnd[5]); |
| } |
| |
| /* |
| * 12-byte READ(0xA8) or WRITE(0xAA) cdb |
| */ |
| else if (scp->cmd_len == 12) { |
| ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[6] << 24) | |
| ((u32) scp->cmnd[7] << 16) | |
| ((u32) scp->cmnd[8] << 8) | |
| (u32) scp->cmnd[9]); |
| |
| ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[2] << 24) | |
| ((u32) scp->cmnd[3] << 16) | |
| ((u32) scp->cmnd[4] << 8) | |
| (u32) scp->cmnd[5]); |
| } |
| |
| /* |
| * 16-byte READ(0x88) or WRITE(0x8A) cdb |
| */ |
| else if (scp->cmd_len == 16) { |
| ldio->lba_count = cpu_to_le32(((u32) scp->cmnd[10] << 24) | |
| ((u32) scp->cmnd[11] << 16) | |
| ((u32) scp->cmnd[12] << 8) | |
| (u32) scp->cmnd[13]); |
| |
| ldio->start_lba_lo = cpu_to_le32(((u32) scp->cmnd[6] << 24) | |
| ((u32) scp->cmnd[7] << 16) | |
| ((u32) scp->cmnd[8] << 8) | |
| (u32) scp->cmnd[9]); |
| |
| ldio->start_lba_hi = cpu_to_le32(((u32) scp->cmnd[2] << 24) | |
| ((u32) scp->cmnd[3] << 16) | |
| ((u32) scp->cmnd[4] << 8) | |
| (u32) scp->cmnd[5]); |
| |
| } |
| |
| /* |
| * Construct SGL |
| */ |
| if (instance->flag_ieee) { |
| ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
| ldio->sge_count = megasas_make_sgl_skinny(instance, scp, |
| &ldio->sgl); |
| } else if (IS_DMA64) { |
| ldio->flags |= cpu_to_le16(MFI_FRAME_SGL64); |
| ldio->sge_count = megasas_make_sgl64(instance, scp, &ldio->sgl); |
| } else |
| ldio->sge_count = megasas_make_sgl32(instance, scp, &ldio->sgl); |
| |
| if (ldio->sge_count > instance->max_num_sge) { |
| dev_err(&instance->pdev->dev, "build_ld_io: sge_count = %x\n", |
| ldio->sge_count); |
| return 0; |
| } |
| |
| /* |
| * Sense info specific |
| */ |
| ldio->sense_len = SCSI_SENSE_BUFFERSIZE; |
| ldio->sense_buf_phys_addr_hi = 0; |
| ldio->sense_buf_phys_addr_lo = cpu_to_le32(cmd->sense_phys_addr); |
| |
| /* |
| * Compute the total number of frames this command consumes. FW uses |
| * this number to pull sufficient number of frames from host memory. |
| */ |
| cmd->frame_count = megasas_get_frame_count(instance, |
| ldio->sge_count, IO_FRAME); |
| |
| return cmd->frame_count; |
| } |
| |
| /** |
| * megasas_cmd_type - Checks if the cmd is for logical drive/sysPD |
| * and whether it's RW or non RW |
| * @scmd: SCSI command |
| * |
| */ |
| inline int megasas_cmd_type(struct scsi_cmnd *cmd) |
| { |
| int ret; |
| |
| switch (cmd->cmnd[0]) { |
| case READ_10: |
| case WRITE_10: |
| case READ_12: |
| case WRITE_12: |
| case READ_6: |
| case WRITE_6: |
| case READ_16: |
| case WRITE_16: |
| ret = (MEGASAS_IS_LOGICAL(cmd)) ? |
| READ_WRITE_LDIO : READ_WRITE_SYSPDIO; |
| break; |
| default: |
| ret = (MEGASAS_IS_LOGICAL(cmd)) ? |
| NON_READ_WRITE_LDIO : NON_READ_WRITE_SYSPDIO; |
| } |
| return ret; |
| } |
| |
| /** |
| * megasas_dump_pending_frames - Dumps the frame address of all pending cmds |
| * in FW |
| * @instance: Adapter soft state |
| */ |
| static inline void |
| megasas_dump_pending_frames(struct megasas_instance *instance) |
| { |
| struct megasas_cmd *cmd; |
| int i,n; |
| union megasas_sgl *mfi_sgl; |
| struct megasas_io_frame *ldio; |
| struct megasas_pthru_frame *pthru; |
| u32 sgcount; |
| u32 max_cmd = instance->max_fw_cmds; |
| |
| dev_err(&instance->pdev->dev, "[%d]: Dumping Frame Phys Address of all pending cmds in FW\n",instance->host->host_no); |
| dev_err(&instance->pdev->dev, "[%d]: Total OS Pending cmds : %d\n",instance->host->host_no,atomic_read(&instance->fw_outstanding)); |
| if (IS_DMA64) |
| dev_err(&instance->pdev->dev, "[%d]: 64 bit SGLs were sent to FW\n",instance->host->host_no); |
| else |
| dev_err(&instance->pdev->dev, "[%d]: 32 bit SGLs were sent to FW\n",instance->host->host_no); |
| |
| dev_err(&instance->pdev->dev, "[%d]: Pending OS cmds in FW : \n",instance->host->host_no); |
| for (i = 0; i < max_cmd; i++) { |
| cmd = instance->cmd_list[i]; |
| if (!cmd->scmd) |
| continue; |
| dev_err(&instance->pdev->dev, "[%d]: Frame addr :0x%08lx : ",instance->host->host_no,(unsigned long)cmd->frame_phys_addr); |
| if (megasas_cmd_type(cmd->scmd) == READ_WRITE_LDIO) { |
| ldio = (struct megasas_io_frame *)cmd->frame; |
| mfi_sgl = &ldio->sgl; |
| sgcount = ldio->sge_count; |
| dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x," |
| " lba lo : 0x%x, lba_hi : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", |
| instance->host->host_no, cmd->frame_count, ldio->cmd, ldio->target_id, |
| le32_to_cpu(ldio->start_lba_lo), le32_to_cpu(ldio->start_lba_hi), |
| le32_to_cpu(ldio->sense_buf_phys_addr_lo), sgcount); |
| } else { |
| pthru = (struct megasas_pthru_frame *) cmd->frame; |
| mfi_sgl = &pthru->sgl; |
| sgcount = pthru->sge_count; |
| dev_err(&instance->pdev->dev, "[%d]: frame count : 0x%x, Cmd : 0x%x, Tgt id : 0x%x, " |
| "lun : 0x%x, cdb_len : 0x%x, data xfer len : 0x%x, sense_buf addr : 0x%x,sge count : 0x%x\n", |
| instance->host->host_no, cmd->frame_count, pthru->cmd, pthru->target_id, |
| pthru->lun, pthru->cdb_len, le32_to_cpu(pthru->data_xfer_len), |
| le32_to_cpu(pthru->sense_buf_phys_addr_lo), sgcount); |
| } |
| if (megasas_dbg_lvl & MEGASAS_DBG_LVL) { |
| for (n = 0; n < sgcount; n++) { |
| if (IS_DMA64) |
| dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%llx\n", |
| le32_to_cpu(mfi_sgl->sge64[n].length), |
| le64_to_cpu(mfi_sgl->sge64[n].phys_addr)); |
| else |
| dev_err(&instance->pdev->dev, "sgl len : 0x%x, sgl addr : 0x%x\n", |
| le32_to_cpu(mfi_sgl->sge32[n].length), |
| le32_to_cpu(mfi_sgl->sge32[n].phys_addr)); |
| } |
| } |
| } /*for max_cmd*/ |
| dev_err(&instance->pdev->dev, "[%d]: Pending Internal cmds in FW : \n",instance->host->host_no); |
| for (i = 0; i < max_cmd; i++) { |
| |
| cmd = instance->cmd_list[i]; |
| |
| if (cmd->sync_cmd == 1) |
| dev_err(&instance->pdev->dev, "0x%08lx : ", (unsigned long)cmd->frame_phys_addr); |
| } |
| dev_err(&instance->pdev->dev, "[%d]: Dumping Done\n\n",instance->host->host_no); |
| } |
| |
| u32 |
| megasas_build_and_issue_cmd(struct megasas_instance *instance, |
| struct scsi_cmnd *scmd) |
| { |
| struct megasas_cmd *cmd; |
| u32 frame_count; |
| |
| cmd = megasas_get_cmd(instance); |
| if (!cmd) |
| return SCSI_MLQUEUE_HOST_BUSY; |
| |
| /* |
| * Logical drive command |
| */ |
| if (megasas_cmd_type(scmd) == READ_WRITE_LDIO) |
| frame_count = megasas_build_ldio(instance, scmd, cmd); |
| else |
| frame_count = megasas_build_dcdb(instance, scmd, cmd); |
| |
| if (!frame_count) |
| goto out_return_cmd; |
| |
| cmd->scmd = scmd; |
| scmd->SCp.ptr = (char *)cmd; |
| |
| /* |
| * Issue the command to the FW |
| */ |
| atomic_inc(&instance->fw_outstanding); |
| |
| instance->instancet->fire_cmd(instance, cmd->frame_phys_addr, |
| cmd->frame_count-1, instance->reg_set); |
| |
| return 0; |
| out_return_cmd: |
| megasas_return_cmd(instance, cmd); |
| return SCSI_MLQUEUE_HOST_BUSY; |
| } |
| |
| |
| /** |
| * megasas_queue_command - Queue entry point |
| * @scmd: SCSI command to be queued |
| * @done: Callback entry point |
| */ |
| static int |
| megasas_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scmd) |
| { |
| struct megasas_instance *instance; |
| struct MR_PRIV_DEVICE *mr_device_priv_data; |
| |
| instance = (struct megasas_instance *) |
| scmd->device->host->hostdata; |
| |
| if (instance->unload == 1) { |
| scmd->result = DID_NO_CONNECT << 16; |
| scmd->scsi_done(scmd); |
| return 0; |
| } |
| |
| if (instance->issuepend_done == 0) |
| return SCSI_MLQUEUE_HOST_BUSY; |
| |
| |
| /* Check for an mpio path and adjust behavior */ |
| if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { |
| if (megasas_check_mpio_paths(instance, scmd) == |
| (DID_RESET << 16)) { |
| return SCSI_MLQUEUE_HOST_BUSY; |
| } else { |
| scmd->result = DID_NO_CONNECT << 16; |
| scmd->scsi_done(scmd); |
| return 0; |
| } |
| } |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
| scmd->result = DID_NO_CONNECT << 16; |
| scmd->scsi_done(scmd); |
| return 0; |
| } |
| |
| mr_device_priv_data = scmd->device->hostdata; |
| if (!mr_device_priv_data) { |
| scmd->result = DID_NO_CONNECT << 16; |
| scmd->scsi_done(scmd); |
| return 0; |
| } |
| |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) |
| return SCSI_MLQUEUE_HOST_BUSY; |
| |
| if (mr_device_priv_data->tm_busy) |
| return SCSI_MLQUEUE_DEVICE_BUSY; |
| |
| |
| scmd->result = 0; |
| |
| if (MEGASAS_IS_LOGICAL(scmd) && |
| (scmd->device->id >= instance->fw_supported_vd_count || |
| scmd->device->lun)) { |
| scmd->result = DID_BAD_TARGET << 16; |
| goto out_done; |
| } |
| |
| switch (scmd->cmnd[0]) { |
| case SYNCHRONIZE_CACHE: |
| /* |
| * FW takes care of flush cache on its own |
| * No need to send it down |
| */ |
| scmd->result = DID_OK << 16; |
| goto out_done; |
| default: |
| break; |
| } |
| |
| return instance->instancet->build_and_issue_cmd(instance, scmd); |
| |
| out_done: |
| scmd->scsi_done(scmd); |
| return 0; |
| } |
| |
| static struct megasas_instance *megasas_lookup_instance(u16 host_no) |
| { |
| int i; |
| |
| for (i = 0; i < megasas_mgmt_info.max_index; i++) { |
| |
| if ((megasas_mgmt_info.instance[i]) && |
| (megasas_mgmt_info.instance[i]->host->host_no == host_no)) |
| return megasas_mgmt_info.instance[i]; |
| } |
| |
| return NULL; |
| } |
| |
| /* |
| * megasas_update_sdev_properties - Update sdev structure based on controller's FW capabilities |
| * |
| * @sdev: OS provided scsi device |
| * |
| * Returns void |
| */ |
| void megasas_update_sdev_properties(struct scsi_device *sdev) |
| { |
| u16 pd_index = 0; |
| u32 device_id, ld; |
| struct megasas_instance *instance; |
| struct fusion_context *fusion; |
| struct MR_PRIV_DEVICE *mr_device_priv_data; |
| struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync; |
| struct MR_LD_RAID *raid; |
| struct MR_DRV_RAID_MAP_ALL *local_map_ptr; |
| |
| instance = megasas_lookup_instance(sdev->host->host_no); |
| fusion = instance->ctrl_context; |
| mr_device_priv_data = sdev->hostdata; |
| |
| if (!fusion) |
| return; |
| |
| if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && |
| instance->use_seqnum_jbod_fp) { |
| pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + |
| sdev->id; |
| pd_sync = (void *)fusion->pd_seq_sync |
| [(instance->pd_seq_map_id - 1) & 1]; |
| mr_device_priv_data->is_tm_capable = |
| pd_sync->seq[pd_index].capability.tmCapable; |
| } else { |
| device_id = ((sdev->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) |
| + sdev->id; |
| local_map_ptr = fusion->ld_drv_map[(instance->map_id & 1)]; |
| ld = MR_TargetIdToLdGet(device_id, local_map_ptr); |
| raid = MR_LdRaidGet(ld, local_map_ptr); |
| |
| if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) |
| blk_queue_update_dma_alignment(sdev->request_queue, 0x7); |
| mr_device_priv_data->is_tm_capable = |
| raid->capability.tmCapable; |
| } |
| } |
| |
| static void megasas_set_device_queue_depth(struct scsi_device *sdev) |
| { |
| u16 pd_index = 0; |
| int ret = DCMD_FAILED; |
| struct megasas_instance *instance; |
| |
| instance = megasas_lookup_instance(sdev->host->host_no); |
| |
| if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) { |
| pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + sdev->id; |
| |
| if (instance->pd_info) { |
| mutex_lock(&instance->hba_mutex); |
| ret = megasas_get_pd_info(instance, pd_index); |
| mutex_unlock(&instance->hba_mutex); |
| } |
| |
| if (ret != DCMD_SUCCESS) |
| return; |
| |
| if (instance->pd_list[pd_index].driveState == MR_PD_STATE_SYSTEM) { |
| |
| switch (instance->pd_list[pd_index].interface) { |
| case SAS_PD: |
| scsi_change_queue_depth(sdev, MEGASAS_SAS_QD); |
| break; |
| |
| case SATA_PD: |
| scsi_change_queue_depth(sdev, MEGASAS_SATA_QD); |
| break; |
| |
| default: |
| scsi_change_queue_depth(sdev, MEGASAS_DEFAULT_PD_QD); |
| } |
| } |
| } |
| } |
| |
| |
| static int megasas_slave_configure(struct scsi_device *sdev) |
| { |
| u16 pd_index = 0; |
| struct megasas_instance *instance; |
| |
| instance = megasas_lookup_instance(sdev->host->host_no); |
| if (instance->pd_list_not_supported) { |
| if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && |
| sdev->type == TYPE_DISK) { |
| pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + |
| sdev->id; |
| if (instance->pd_list[pd_index].driveState != |
| MR_PD_STATE_SYSTEM) |
| return -ENXIO; |
| } |
| } |
| megasas_set_device_queue_depth(sdev); |
| megasas_update_sdev_properties(sdev); |
| |
| /* |
| * The RAID firmware may require extended timeouts. |
| */ |
| blk_queue_rq_timeout(sdev->request_queue, |
| scmd_timeout * HZ); |
| |
| return 0; |
| } |
| |
| static int megasas_slave_alloc(struct scsi_device *sdev) |
| { |
| u16 pd_index = 0; |
| struct megasas_instance *instance ; |
| struct MR_PRIV_DEVICE *mr_device_priv_data; |
| |
| instance = megasas_lookup_instance(sdev->host->host_no); |
| if (sdev->channel < MEGASAS_MAX_PD_CHANNELS) { |
| /* |
| * Open the OS scan to the SYSTEM PD |
| */ |
| pd_index = |
| (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) + |
| sdev->id; |
| if ((instance->pd_list_not_supported || |
| instance->pd_list[pd_index].driveState == |
| MR_PD_STATE_SYSTEM)) { |
| goto scan_target; |
| } |
| return -ENXIO; |
| } |
| |
| scan_target: |
| mr_device_priv_data = kzalloc(sizeof(*mr_device_priv_data), |
| GFP_KERNEL); |
| if (!mr_device_priv_data) |
| return -ENOMEM; |
| sdev->hostdata = mr_device_priv_data; |
| return 0; |
| } |
| |
| static void megasas_slave_destroy(struct scsi_device *sdev) |
| { |
| kfree(sdev->hostdata); |
| sdev->hostdata = NULL; |
| } |
| |
| /* |
| * megasas_complete_outstanding_ioctls - Complete outstanding ioctls after a |
| * kill adapter |
| * @instance: Adapter soft state |
| * |
| */ |
| static void megasas_complete_outstanding_ioctls(struct megasas_instance *instance) |
| { |
| int i; |
| struct megasas_cmd *cmd_mfi; |
| struct megasas_cmd_fusion *cmd_fusion; |
| struct fusion_context *fusion = instance->ctrl_context; |
| |
| /* Find all outstanding ioctls */ |
| if (fusion) { |
| for (i = 0; i < instance->max_fw_cmds; i++) { |
| cmd_fusion = fusion->cmd_list[i]; |
| if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) { |
| cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx]; |
| if (cmd_mfi->sync_cmd && |
| cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT) |
| megasas_complete_cmd(instance, |
| cmd_mfi, DID_OK); |
| } |
| } |
| } else { |
| for (i = 0; i < instance->max_fw_cmds; i++) { |
| cmd_mfi = instance->cmd_list[i]; |
| if (cmd_mfi->sync_cmd && cmd_mfi->frame->hdr.cmd != |
| MFI_CMD_ABORT) |
| megasas_complete_cmd(instance, cmd_mfi, DID_OK); |
| } |
| } |
| } |
| |
| |
| void megaraid_sas_kill_hba(struct megasas_instance *instance) |
| { |
| /* Set critical error to block I/O & ioctls in case caller didn't */ |
| atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); |
| /* Wait 1 second to ensure IO or ioctls in build have posted */ |
| msleep(1000); |
| if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
| (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
| (instance->ctrl_context)) { |
| writel(MFI_STOP_ADP, &instance->reg_set->doorbell); |
| /* Flush */ |
| readl(&instance->reg_set->doorbell); |
| if (instance->requestorId && instance->peerIsPresent) |
| memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
| } else { |
| writel(MFI_STOP_ADP, |
| &instance->reg_set->inbound_doorbell); |
| } |
| /* Complete outstanding ioctls when adapter is killed */ |
| megasas_complete_outstanding_ioctls(instance); |
| } |
| |
| /** |
| * megasas_check_and_restore_queue_depth - Check if queue depth needs to be |
| * restored to max value |
| * @instance: Adapter soft state |
| * |
| */ |
| void |
| megasas_check_and_restore_queue_depth(struct megasas_instance *instance) |
| { |
| unsigned long flags; |
| |
| if (instance->flag & MEGASAS_FW_BUSY |
| && time_after(jiffies, instance->last_time + 5 * HZ) |
| && atomic_read(&instance->fw_outstanding) < |
| instance->throttlequeuedepth + 1) { |
| |
| spin_lock_irqsave(instance->host->host_lock, flags); |
| instance->flag &= ~MEGASAS_FW_BUSY; |
| |
| instance->host->can_queue = instance->cur_can_queue; |
| spin_unlock_irqrestore(instance->host->host_lock, flags); |
| } |
| } |
| |
| /** |
| * megasas_complete_cmd_dpc - Returns FW's controller structure |
| * @instance_addr: Address of adapter soft state |
| * |
| * Tasklet to complete cmds |
| */ |
| static void megasas_complete_cmd_dpc(unsigned long instance_addr) |
| { |
| u32 producer; |
| u32 consumer; |
| u32 context; |
| struct megasas_cmd *cmd; |
| struct megasas_instance *instance = |
| (struct megasas_instance *)instance_addr; |
| unsigned long flags; |
| |
| /* If we have already declared adapter dead, donot complete cmds */ |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) |
| return; |
| |
| spin_lock_irqsave(&instance->completion_lock, flags); |
| |
| producer = le32_to_cpu(*instance->producer); |
| consumer = le32_to_cpu(*instance->consumer); |
| |
| while (consumer != producer) { |
| context = le32_to_cpu(instance->reply_queue[consumer]); |
| if (context >= instance->max_fw_cmds) { |
| dev_err(&instance->pdev->dev, "Unexpected context value %x\n", |
| context); |
| BUG(); |
| } |
| |
| cmd = instance->cmd_list[context]; |
| |
| megasas_complete_cmd(instance, cmd, DID_OK); |
| |
| consumer++; |
| if (consumer == (instance->max_fw_cmds + 1)) { |
| consumer = 0; |
| } |
| } |
| |
| *instance->consumer = cpu_to_le32(producer); |
| |
| spin_unlock_irqrestore(&instance->completion_lock, flags); |
| |
| /* |
| * Check if we can restore can_queue |
| */ |
| megasas_check_and_restore_queue_depth(instance); |
| } |
| |
| /** |
| * megasas_start_timer - Initializes a timer object |
| * @instance: Adapter soft state |
| * @timer: timer object to be initialized |
| * @fn: timer function |
| * @interval: time interval between timer function call |
| * |
| */ |
| void megasas_start_timer(struct megasas_instance *instance, |
| struct timer_list *timer, |
| void *fn, unsigned long interval) |
| { |
| init_timer(timer); |
| timer->expires = jiffies + interval; |
| timer->data = (unsigned long)instance; |
| timer->function = fn; |
| add_timer(timer); |
| } |
| |
| static void |
| megasas_internal_reset_defer_cmds(struct megasas_instance *instance); |
| |
| static void |
| process_fw_state_change_wq(struct work_struct *work); |
| |
| void megasas_do_ocr(struct megasas_instance *instance) |
| { |
| if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || |
| (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || |
| (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) { |
| *instance->consumer = cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); |
| } |
| instance->instancet->disable_intr(instance); |
| atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); |
| instance->issuepend_done = 0; |
| |
| atomic_set(&instance->fw_outstanding, 0); |
| megasas_internal_reset_defer_cmds(instance); |
| process_fw_state_change_wq(&instance->work_init); |
| } |
| |
| static int megasas_get_ld_vf_affiliation_111(struct megasas_instance *instance, |
| int initial) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct MR_LD_VF_AFFILIATION_111 *new_affiliation_111 = NULL; |
| dma_addr_t new_affiliation_111_h; |
| int ld, retval = 0; |
| u8 thisVf; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation_111:" |
| "Failed to get cmd for scsi%d\n", |
| instance->host->host_no); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| if (!instance->vf_affiliation_111) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " |
| "affiliation for scsi%d\n", instance->host->host_no); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| if (initial) |
| memset(instance->vf_affiliation_111, 0, |
| sizeof(struct MR_LD_VF_AFFILIATION_111)); |
| else { |
| new_affiliation_111 = |
| pci_alloc_consistent(instance->pdev, |
| sizeof(struct MR_LD_VF_AFFILIATION_111), |
| &new_affiliation_111_h); |
| if (!new_affiliation_111) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " |
| "memory for new affiliation for scsi%d\n", |
| instance->host->host_no); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| memset(new_affiliation_111, 0, |
| sizeof(struct MR_LD_VF_AFFILIATION_111)); |
| } |
| |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = |
| cpu_to_le32(sizeof(struct MR_LD_VF_AFFILIATION_111)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS_111); |
| |
| if (initial) |
| dcmd->sgl.sge32[0].phys_addr = |
| cpu_to_le32(instance->vf_affiliation_111_h); |
| else |
| dcmd->sgl.sge32[0].phys_addr = |
| cpu_to_le32(new_affiliation_111_h); |
| |
| dcmd->sgl.sge32[0].length = cpu_to_le32( |
| sizeof(struct MR_LD_VF_AFFILIATION_111)); |
| |
| dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " |
| "scsi%d\n", instance->host->host_no); |
| |
| if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" |
| " failed with status 0x%x for scsi%d\n", |
| dcmd->cmd_status, instance->host->host_no); |
| retval = 1; /* Do a scan if we couldn't get affiliation */ |
| goto out; |
| } |
| |
| if (!initial) { |
| thisVf = new_affiliation_111->thisVf; |
| for (ld = 0 ; ld < new_affiliation_111->vdCount; ld++) |
| if (instance->vf_affiliation_111->map[ld].policy[thisVf] != |
| new_affiliation_111->map[ld].policy[thisVf]) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: " |
| "Got new LD/VF affiliation for scsi%d\n", |
| instance->host->host_no); |
| memcpy(instance->vf_affiliation_111, |
| new_affiliation_111, |
| sizeof(struct MR_LD_VF_AFFILIATION_111)); |
| retval = 1; |
| goto out; |
| } |
| } |
| out: |
| if (new_affiliation_111) { |
| pci_free_consistent(instance->pdev, |
| sizeof(struct MR_LD_VF_AFFILIATION_111), |
| new_affiliation_111, |
| new_affiliation_111_h); |
| } |
| |
| megasas_return_cmd(instance, cmd); |
| |
| return retval; |
| } |
| |
| static int megasas_get_ld_vf_affiliation_12(struct megasas_instance *instance, |
| int initial) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct MR_LD_VF_AFFILIATION *new_affiliation = NULL; |
| struct MR_LD_VF_MAP *newmap = NULL, *savedmap = NULL; |
| dma_addr_t new_affiliation_h; |
| int i, j, retval = 0, found = 0, doscan = 0; |
| u8 thisVf; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_vf_affiliation12: " |
| "Failed to get cmd for scsi%d\n", |
| instance->host->host_no); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| if (!instance->vf_affiliation) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: Couldn't get LD/VF " |
| "affiliation for scsi%d\n", instance->host->host_no); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| if (initial) |
| memset(instance->vf_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION)); |
| else { |
| new_affiliation = |
| pci_alloc_consistent(instance->pdev, |
| (MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION), |
| &new_affiliation_h); |
| if (!new_affiliation) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate " |
| "memory for new affiliation for scsi%d\n", |
| instance->host->host_no); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| memset(new_affiliation, 0, (MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION)); |
| } |
| |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_LD_VF_MAP_GET_ALL_LDS); |
| |
| if (initial) |
| dcmd->sgl.sge32[0].phys_addr = |
| cpu_to_le32(instance->vf_affiliation_h); |
| else |
| dcmd->sgl.sge32[0].phys_addr = |
| cpu_to_le32(new_affiliation_h); |
| |
| dcmd->sgl.sge32[0].length = cpu_to_le32((MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION)); |
| |
| dev_warn(&instance->pdev->dev, "SR-IOV: Getting LD/VF affiliation for " |
| "scsi%d\n", instance->host->host_no); |
| |
| |
| if (megasas_issue_blocked_cmd(instance, cmd, 0) != DCMD_SUCCESS) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: LD/VF affiliation DCMD" |
| " failed with status 0x%x for scsi%d\n", |
| dcmd->cmd_status, instance->host->host_no); |
| retval = 1; /* Do a scan if we couldn't get affiliation */ |
| goto out; |
| } |
| |
| if (!initial) { |
| if (!new_affiliation->ldCount) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " |
| "affiliation for passive path for scsi%d\n", |
| instance->host->host_no); |
| retval = 1; |
| goto out; |
| } |
| newmap = new_affiliation->map; |
| savedmap = instance->vf_affiliation->map; |
| thisVf = new_affiliation->thisVf; |
| for (i = 0 ; i < new_affiliation->ldCount; i++) { |
| found = 0; |
| for (j = 0; j < instance->vf_affiliation->ldCount; |
| j++) { |
| if (newmap->ref.targetId == |
| savedmap->ref.targetId) { |
| found = 1; |
| if (newmap->policy[thisVf] != |
| savedmap->policy[thisVf]) { |
| doscan = 1; |
| goto out; |
| } |
| } |
| savedmap = (struct MR_LD_VF_MAP *) |
| ((unsigned char *)savedmap + |
| savedmap->size); |
| } |
| if (!found && newmap->policy[thisVf] != |
| MR_LD_ACCESS_HIDDEN) { |
| doscan = 1; |
| goto out; |
| } |
| newmap = (struct MR_LD_VF_MAP *) |
| ((unsigned char *)newmap + newmap->size); |
| } |
| |
| newmap = new_affiliation->map; |
| savedmap = instance->vf_affiliation->map; |
| |
| for (i = 0 ; i < instance->vf_affiliation->ldCount; i++) { |
| found = 0; |
| for (j = 0 ; j < new_affiliation->ldCount; j++) { |
| if (savedmap->ref.targetId == |
| newmap->ref.targetId) { |
| found = 1; |
| if (savedmap->policy[thisVf] != |
| newmap->policy[thisVf]) { |
| doscan = 1; |
| goto out; |
| } |
| } |
| newmap = (struct MR_LD_VF_MAP *) |
| ((unsigned char *)newmap + |
| newmap->size); |
| } |
| if (!found && savedmap->policy[thisVf] != |
| MR_LD_ACCESS_HIDDEN) { |
| doscan = 1; |
| goto out; |
| } |
| savedmap = (struct MR_LD_VF_MAP *) |
| ((unsigned char *)savedmap + |
| savedmap->size); |
| } |
| } |
| out: |
| if (doscan) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: Got new LD/VF " |
| "affiliation for scsi%d\n", instance->host->host_no); |
| memcpy(instance->vf_affiliation, new_affiliation, |
| new_affiliation->size); |
| retval = 1; |
| } |
| |
| if (new_affiliation) |
| pci_free_consistent(instance->pdev, |
| (MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION), |
| new_affiliation, new_affiliation_h); |
| megasas_return_cmd(instance, cmd); |
| |
| return retval; |
| } |
| |
| /* This function will get the current SR-IOV LD/VF affiliation */ |
| static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance, |
| int initial) |
| { |
| int retval; |
| |
| if (instance->PlasmaFW111) |
| retval = megasas_get_ld_vf_affiliation_111(instance, initial); |
| else |
| retval = megasas_get_ld_vf_affiliation_12(instance, initial); |
| return retval; |
| } |
| |
| /* This function will tell FW to start the SR-IOV heartbeat */ |
| int megasas_sriov_start_heartbeat(struct megasas_instance *instance, |
| int initial) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| int retval = 0; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_sriov_start_heartbeat: " |
| "Failed to get cmd for scsi%d\n", |
| instance->host->host_no); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| if (initial) { |
| instance->hb_host_mem = |
| pci_zalloc_consistent(instance->pdev, |
| sizeof(struct MR_CTRL_HB_HOST_MEM), |
| &instance->hb_host_mem_h); |
| if (!instance->hb_host_mem) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "SR-IOV: Couldn't allocate" |
| " memory for heartbeat host memory for scsi%d\n", |
| instance->host->host_no); |
| retval = -ENOMEM; |
| goto out; |
| } |
| } |
| |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->mbox.s[0] = cpu_to_le16(sizeof(struct MR_CTRL_HB_HOST_MEM)); |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_BOTH); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SHARED_HOST_MEM_ALLOC); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->hb_host_mem_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_CTRL_HB_HOST_MEM)); |
| |
| dev_warn(&instance->pdev->dev, "SR-IOV: Starting heartbeat for scsi%d\n", |
| instance->host->host_no); |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| retval = megasas_issue_blocked_cmd(instance, cmd, |
| MEGASAS_ROUTINE_WAIT_TIME_VF); |
| else |
| retval = megasas_issue_polled(instance, cmd); |
| |
| if (retval) { |
| dev_warn(&instance->pdev->dev, "SR-IOV: MR_DCMD_CTRL_SHARED_HOST" |
| "_MEM_ALLOC DCMD %s for scsi%d\n", |
| (dcmd->cmd_status == MFI_STAT_INVALID_STATUS) ? |
| "timed out" : "failed", instance->host->host_no); |
| retval = 1; |
| } |
| |
| out: |
| megasas_return_cmd(instance, cmd); |
| |
| return retval; |
| } |
| |
| /* Handler for SR-IOV heartbeat */ |
| void megasas_sriov_heartbeat_handler(unsigned long instance_addr) |
| { |
| struct megasas_instance *instance = |
| (struct megasas_instance *)instance_addr; |
| |
| if (instance->hb_host_mem->HB.fwCounter != |
| instance->hb_host_mem->HB.driverCounter) { |
| instance->hb_host_mem->HB.driverCounter = |
| instance->hb_host_mem->HB.fwCounter; |
| mod_timer(&instance->sriov_heartbeat_timer, |
| jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); |
| } else { |
| dev_warn(&instance->pdev->dev, "SR-IOV: Heartbeat never " |
| "completed for scsi%d\n", instance->host->host_no); |
| schedule_work(&instance->work_init); |
| } |
| } |
| |
| /** |
| * megasas_wait_for_outstanding - Wait for all outstanding cmds |
| * @instance: Adapter soft state |
| * |
| * This function waits for up to MEGASAS_RESET_WAIT_TIME seconds for FW to |
| * complete all its outstanding commands. Returns error if one or more IOs |
| * are pending after this time period. It also marks the controller dead. |
| */ |
| static int megasas_wait_for_outstanding(struct megasas_instance *instance) |
| { |
| int i, sl, outstanding; |
| u32 reset_index; |
| u32 wait_time = MEGASAS_RESET_WAIT_TIME; |
| unsigned long flags; |
| struct list_head clist_local; |
| struct megasas_cmd *reset_cmd; |
| u32 fw_state; |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
| dev_info(&instance->pdev->dev, "%s:%d HBA is killed.\n", |
| __func__, __LINE__); |
| return FAILED; |
| } |
| |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
| |
| INIT_LIST_HEAD(&clist_local); |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| list_splice_init(&instance->internal_reset_pending_q, |
| &clist_local); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| dev_notice(&instance->pdev->dev, "HBA reset wait ...\n"); |
| for (i = 0; i < wait_time; i++) { |
| msleep(1000); |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) |
| break; |
| } |
| |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
| dev_notice(&instance->pdev->dev, "reset: Stopping HBA.\n"); |
| atomic_set(&instance->adprecovery, MEGASAS_HW_CRITICAL_ERROR); |
| return FAILED; |
| } |
| |
| reset_index = 0; |
| while (!list_empty(&clist_local)) { |
| reset_cmd = list_entry((&clist_local)->next, |
| struct megasas_cmd, list); |
| list_del_init(&reset_cmd->list); |
| if (reset_cmd->scmd) { |
| reset_cmd->scmd->result = DID_RESET << 16; |
| dev_notice(&instance->pdev->dev, "%d:%p reset [%02x]\n", |
| reset_index, reset_cmd, |
| reset_cmd->scmd->cmnd[0]); |
| |
| reset_cmd->scmd->scsi_done(reset_cmd->scmd); |
| megasas_return_cmd(instance, reset_cmd); |
| } else if (reset_cmd->sync_cmd) { |
| dev_notice(&instance->pdev->dev, "%p synch cmds" |
| "reset queue\n", |
| reset_cmd); |
| |
| reset_cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
| instance->instancet->fire_cmd(instance, |
| reset_cmd->frame_phys_addr, |
| 0, instance->reg_set); |
| } else { |
| dev_notice(&instance->pdev->dev, "%p unexpected" |
| "cmds lst\n", |
| reset_cmd); |
| } |
| reset_index++; |
| } |
| |
| return SUCCESS; |
| } |
| |
| for (i = 0; i < resetwaittime; i++) { |
| outstanding = atomic_read(&instance->fw_outstanding); |
| |
| if (!outstanding) |
| break; |
| |
| if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { |
| dev_notice(&instance->pdev->dev, "[%2d]waiting for %d " |
| "commands to complete\n",i,outstanding); |
| /* |
| * Call cmd completion routine. Cmd to be |
| * be completed directly without depending on isr. |
| */ |
| megasas_complete_cmd_dpc((unsigned long)instance); |
| } |
| |
| msleep(1000); |
| } |
| |
| i = 0; |
| outstanding = atomic_read(&instance->fw_outstanding); |
| fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; |
| |
| if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) |
| goto no_outstanding; |
| |
| if (instance->disableOnlineCtrlReset) |
| goto kill_hba_and_failed; |
| do { |
| if ((fw_state == MFI_STATE_FAULT) || atomic_read(&instance->fw_outstanding)) { |
| dev_info(&instance->pdev->dev, |
| "%s:%d waiting_for_outstanding: before issue OCR. FW state = 0x%x, oustanding 0x%x\n", |
| __func__, __LINE__, fw_state, atomic_read(&instance->fw_outstanding)); |
| if (i == 3) |
| goto kill_hba_and_failed; |
| megasas_do_ocr(instance); |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
| dev_info(&instance->pdev->dev, "%s:%d OCR failed and HBA is killed.\n", |
| __func__, __LINE__); |
| return FAILED; |
| } |
| dev_info(&instance->pdev->dev, "%s:%d waiting_for_outstanding: after issue OCR.\n", |
| __func__, __LINE__); |
| |
| for (sl = 0; sl < 10; sl++) |
| msleep(500); |
| |
| outstanding = atomic_read(&instance->fw_outstanding); |
| |
| fw_state = instance->instancet->read_fw_status_reg(instance->reg_set) & MFI_STATE_MASK; |
| if ((!outstanding && (fw_state == MFI_STATE_OPERATIONAL))) |
| goto no_outstanding; |
| } |
| i++; |
| } while (i <= 3); |
| |
| no_outstanding: |
| |
| dev_info(&instance->pdev->dev, "%s:%d no more pending commands remain after reset handling.\n", |
| __func__, __LINE__); |
| return SUCCESS; |
| |
| kill_hba_and_failed: |
| |
| /* Reset not supported, kill adapter */ |
| dev_info(&instance->pdev->dev, "%s:%d killing adapter scsi%d" |
| " disableOnlineCtrlReset %d fw_outstanding %d \n", |
| __func__, __LINE__, instance->host->host_no, instance->disableOnlineCtrlReset, |
| atomic_read(&instance->fw_outstanding)); |
| megasas_dump_pending_frames(instance); |
| megaraid_sas_kill_hba(instance); |
| |
| return FAILED; |
| } |
| |
| /** |
| * megasas_generic_reset - Generic reset routine |
| * @scmd: Mid-layer SCSI command |
| * |
| * This routine implements a generic reset handler for device, bus and host |
| * reset requests. Device, bus and host specific reset handlers can use this |
| * function after they do their specific tasks. |
| */ |
| static int megasas_generic_reset(struct scsi_cmnd *scmd) |
| { |
| int ret_val; |
| struct megasas_instance *instance; |
| |
| instance = (struct megasas_instance *)scmd->device->host->hostdata; |
| |
| scmd_printk(KERN_NOTICE, scmd, "megasas: RESET cmd=%x retries=%x\n", |
| scmd->cmnd[0], scmd->retries); |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
| dev_err(&instance->pdev->dev, "cannot recover from previous reset failures\n"); |
| return FAILED; |
| } |
| |
| ret_val = megasas_wait_for_outstanding(instance); |
| if (ret_val == SUCCESS) |
| dev_notice(&instance->pdev->dev, "reset successful\n"); |
| else |
| dev_err(&instance->pdev->dev, "failed to do reset\n"); |
| |
| return ret_val; |
| } |
| |
| /** |
| * megasas_reset_timer - quiesce the adapter if required |
| * @scmd: scsi cmnd |
| * |
| * Sets the FW busy flag and reduces the host->can_queue if the |
| * cmd has not been completed within the timeout period. |
| */ |
| static enum |
| blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) |
| { |
| struct megasas_instance *instance; |
| unsigned long flags; |
| |
| if (time_after(jiffies, scmd->jiffies_at_alloc + |
| (scmd_timeout * 2) * HZ)) { |
| return BLK_EH_NOT_HANDLED; |
| } |
| |
| instance = (struct megasas_instance *)scmd->device->host->hostdata; |
| if (!(instance->flag & MEGASAS_FW_BUSY)) { |
| /* FW is busy, throttle IO */ |
| spin_lock_irqsave(instance->host->host_lock, flags); |
| |
| instance->host->can_queue = instance->throttlequeuedepth; |
| instance->last_time = jiffies; |
| instance->flag |= MEGASAS_FW_BUSY; |
| |
| spin_unlock_irqrestore(instance->host->host_lock, flags); |
| } |
| return BLK_EH_RESET_TIMER; |
| } |
| |
| /** |
| * megasas_reset_bus_host - Bus & host reset handler entry point |
| */ |
| static int megasas_reset_bus_host(struct scsi_cmnd *scmd) |
| { |
| int ret; |
| struct megasas_instance *instance; |
| |
| instance = (struct megasas_instance *)scmd->device->host->hostdata; |
| |
| /* |
| * First wait for all commands to complete |
| */ |
| if (instance->ctrl_context) |
| ret = megasas_reset_fusion(scmd->device->host, 1); |
| else |
| ret = megasas_generic_reset(scmd); |
| |
| return ret; |
| } |
| |
| /** |
| * megasas_task_abort - Issues task abort request to firmware |
| * (supported only for fusion adapters) |
| * @scmd: SCSI command pointer |
| */ |
| static int megasas_task_abort(struct scsi_cmnd *scmd) |
| { |
| int ret; |
| struct megasas_instance *instance; |
| |
| instance = (struct megasas_instance *)scmd->device->host->hostdata; |
| |
| if (instance->ctrl_context) |
| ret = megasas_task_abort_fusion(scmd); |
| else { |
| sdev_printk(KERN_NOTICE, scmd->device, "TASK ABORT not supported\n"); |
| ret = FAILED; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * megasas_reset_target: Issues target reset request to firmware |
| * (supported only for fusion adapters) |
| * @scmd: SCSI command pointer |
| */ |
| static int megasas_reset_target(struct scsi_cmnd *scmd) |
| { |
| int ret; |
| struct megasas_instance *instance; |
| |
| instance = (struct megasas_instance *)scmd->device->host->hostdata; |
| |
| if (instance->ctrl_context) |
| ret = megasas_reset_target_fusion(scmd); |
| else { |
| sdev_printk(KERN_NOTICE, scmd->device, "TARGET RESET not supported\n"); |
| ret = FAILED; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * megasas_bios_param - Returns disk geometry for a disk |
| * @sdev: device handle |
| * @bdev: block device |
| * @capacity: drive capacity |
| * @geom: geometry parameters |
| */ |
| static int |
| megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, |
| sector_t capacity, int geom[]) |
| { |
| int heads; |
| int sectors; |
| sector_t cylinders; |
| unsigned long tmp; |
| |
| /* Default heads (64) & sectors (32) */ |
| heads = 64; |
| sectors = 32; |
| |
| tmp = heads * sectors; |
| cylinders = capacity; |
| |
| sector_div(cylinders, tmp); |
| |
| /* |
| * Handle extended translation size for logical drives > 1Gb |
| */ |
| |
| if (capacity >= 0x200000) { |
| heads = 255; |
| sectors = 63; |
| tmp = heads*sectors; |
| cylinders = capacity; |
| sector_div(cylinders, tmp); |
| } |
| |
| geom[0] = heads; |
| geom[1] = sectors; |
| geom[2] = cylinders; |
| |
| return 0; |
| } |
| |
| static void megasas_aen_polling(struct work_struct *work); |
| |
| /** |
| * megasas_service_aen - Processes an event notification |
| * @instance: Adapter soft state |
| * @cmd: AEN command completed by the ISR |
| * |
| * For AEN, driver sends a command down to FW that is held by the FW till an |
| * event occurs. When an event of interest occurs, FW completes the command |
| * that it was previously holding. |
| * |
| * This routines sends SIGIO signal to processes that have registered with the |
| * driver for AEN. |
| */ |
| static void |
| megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) |
| { |
| unsigned long flags; |
| |
| /* |
| * Don't signal app if it is just an aborted previously registered aen |
| */ |
| if ((!cmd->abort_aen) && (instance->unload == 0)) { |
| spin_lock_irqsave(&poll_aen_lock, flags); |
| megasas_poll_wait_aen = 1; |
| spin_unlock_irqrestore(&poll_aen_lock, flags); |
| wake_up(&megasas_poll_wait); |
| kill_fasync(&megasas_async_queue, SIGIO, POLL_IN); |
| } |
| else |
| cmd->abort_aen = 0; |
| |
| instance->aen_cmd = NULL; |
| |
| megasas_return_cmd(instance, cmd); |
| |
| if ((instance->unload == 0) && |
| ((instance->issuepend_done == 1))) { |
| struct megasas_aen_event *ev; |
| |
| ev = kzalloc(sizeof(*ev), GFP_ATOMIC); |
| if (!ev) { |
| dev_err(&instance->pdev->dev, "megasas_service_aen: out of memory\n"); |
| } else { |
| ev->instance = instance; |
| instance->ev = ev; |
| INIT_DELAYED_WORK(&ev->hotplug_work, |
| megasas_aen_polling); |
| schedule_delayed_work(&ev->hotplug_work, 0); |
| } |
| } |
| } |
| |
| static ssize_t |
| megasas_fw_crash_buffer_store(struct device *cdev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(cdev); |
| struct megasas_instance *instance = |
| (struct megasas_instance *) shost->hostdata; |
| int val = 0; |
| unsigned long flags; |
| |
| if (kstrtoint(buf, 0, &val) != 0) |
| return -EINVAL; |
| |
| spin_lock_irqsave(&instance->crashdump_lock, flags); |
| instance->fw_crash_buffer_offset = val; |
| spin_unlock_irqrestore(&instance->crashdump_lock, flags); |
| return strlen(buf); |
| } |
| |
| static ssize_t |
| megasas_fw_crash_buffer_show(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(cdev); |
| struct megasas_instance *instance = |
| (struct megasas_instance *) shost->hostdata; |
| u32 size; |
| unsigned long buff_addr; |
| unsigned long dmachunk = CRASH_DMA_BUF_SIZE; |
| unsigned long src_addr; |
| unsigned long flags; |
| u32 buff_offset; |
| |
| spin_lock_irqsave(&instance->crashdump_lock, flags); |
| buff_offset = instance->fw_crash_buffer_offset; |
| if (!instance->crash_dump_buf && |
| !((instance->fw_crash_state == AVAILABLE) || |
| (instance->fw_crash_state == COPYING))) { |
| dev_err(&instance->pdev->dev, |
| "Firmware crash dump is not available\n"); |
| spin_unlock_irqrestore(&instance->crashdump_lock, flags); |
| return -EINVAL; |
| } |
| |
| buff_addr = (unsigned long) buf; |
| |
| if (buff_offset > (instance->fw_crash_buffer_size * dmachunk)) { |
| dev_err(&instance->pdev->dev, |
| "Firmware crash dump offset is out of range\n"); |
| spin_unlock_irqrestore(&instance->crashdump_lock, flags); |
| return 0; |
| } |
| |
| size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset; |
| size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size; |
| |
| src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] + |
| (buff_offset % dmachunk); |
| memcpy(buf, (void *)src_addr, size); |
| spin_unlock_irqrestore(&instance->crashdump_lock, flags); |
| |
| return size; |
| } |
| |
| static ssize_t |
| megasas_fw_crash_buffer_size_show(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(cdev); |
| struct megasas_instance *instance = |
| (struct megasas_instance *) shost->hostdata; |
| |
| return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long) |
| ((instance->fw_crash_buffer_size) * 1024 * 1024)/PAGE_SIZE); |
| } |
| |
| static ssize_t |
| megasas_fw_crash_state_store(struct device *cdev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(cdev); |
| struct megasas_instance *instance = |
| (struct megasas_instance *) shost->hostdata; |
| int val = 0; |
| unsigned long flags; |
| |
| if (kstrtoint(buf, 0, &val) != 0) |
| return -EINVAL; |
| |
| if ((val <= AVAILABLE || val > COPY_ERROR)) { |
| dev_err(&instance->pdev->dev, "application updates invalid " |
| "firmware crash state\n"); |
| return -EINVAL; |
| } |
| |
| instance->fw_crash_state = val; |
| |
| if ((val == COPIED) || (val == COPY_ERROR)) { |
| spin_lock_irqsave(&instance->crashdump_lock, flags); |
| megasas_free_host_crash_buffer(instance); |
| spin_unlock_irqrestore(&instance->crashdump_lock, flags); |
| if (val == COPY_ERROR) |
| dev_info(&instance->pdev->dev, "application failed to " |
| "copy Firmware crash dump\n"); |
| else |
| dev_info(&instance->pdev->dev, "Firmware crash dump " |
| "copied successfully\n"); |
| } |
| return strlen(buf); |
| } |
| |
| static ssize_t |
| megasas_fw_crash_state_show(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(cdev); |
| struct megasas_instance *instance = |
| (struct megasas_instance *) shost->hostdata; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", instance->fw_crash_state); |
| } |
| |
| static ssize_t |
| megasas_page_size_show(struct device *cdev, |
| struct device_attribute *attr, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%ld\n", (unsigned long)PAGE_SIZE - 1); |
| } |
| |
| static ssize_t |
| megasas_ldio_outstanding_show(struct device *cdev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(cdev); |
| struct megasas_instance *instance = (struct megasas_instance *)shost->hostdata; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&instance->ldio_outstanding)); |
| } |
| |
| static DEVICE_ATTR(fw_crash_buffer, S_IRUGO | S_IWUSR, |
| megasas_fw_crash_buffer_show, megasas_fw_crash_buffer_store); |
| static DEVICE_ATTR(fw_crash_buffer_size, S_IRUGO, |
| megasas_fw_crash_buffer_size_show, NULL); |
| static DEVICE_ATTR(fw_crash_state, S_IRUGO | S_IWUSR, |
| megasas_fw_crash_state_show, megasas_fw_crash_state_store); |
| static DEVICE_ATTR(page_size, S_IRUGO, |
| megasas_page_size_show, NULL); |
| static DEVICE_ATTR(ldio_outstanding, S_IRUGO, |
| megasas_ldio_outstanding_show, NULL); |
| |
| struct device_attribute *megaraid_host_attrs[] = { |
| &dev_attr_fw_crash_buffer_size, |
| &dev_attr_fw_crash_buffer, |
| &dev_attr_fw_crash_state, |
| &dev_attr_page_size, |
| &dev_attr_ldio_outstanding, |
| NULL, |
| }; |
| |
| /* |
| * Scsi host template for megaraid_sas driver |
| */ |
| static struct scsi_host_template megasas_template = { |
| |
| .module = THIS_MODULE, |
| .name = "Avago SAS based MegaRAID driver", |
| .proc_name = "megaraid_sas", |
| .slave_configure = megasas_slave_configure, |
| .slave_alloc = megasas_slave_alloc, |
| .slave_destroy = megasas_slave_destroy, |
| .queuecommand = megasas_queue_command, |
| .eh_target_reset_handler = megasas_reset_target, |
| .eh_abort_handler = megasas_task_abort, |
| .eh_host_reset_handler = megasas_reset_bus_host, |
| .eh_timed_out = megasas_reset_timer, |
| .shost_attrs = megaraid_host_attrs, |
| .bios_param = megasas_bios_param, |
| .use_clustering = ENABLE_CLUSTERING, |
| .change_queue_depth = scsi_change_queue_depth, |
| .no_write_same = 1, |
| }; |
| |
| /** |
| * megasas_complete_int_cmd - Completes an internal command |
| * @instance: Adapter soft state |
| * @cmd: Command to be completed |
| * |
| * The megasas_issue_blocked_cmd() function waits for a command to complete |
| * after it issues a command. This function wakes up that waiting routine by |
| * calling wake_up() on the wait queue. |
| */ |
| static void |
| megasas_complete_int_cmd(struct megasas_instance *instance, |
| struct megasas_cmd *cmd) |
| { |
| cmd->cmd_status_drv = cmd->frame->io.cmd_status; |
| wake_up(&instance->int_cmd_wait_q); |
| } |
| |
| /** |
| * megasas_complete_abort - Completes aborting a command |
| * @instance: Adapter soft state |
| * @cmd: Cmd that was issued to abort another cmd |
| * |
| * The megasas_issue_blocked_abort_cmd() function waits on abort_cmd_wait_q |
| * after it issues an abort on a previously issued command. This function |
| * wakes up all functions waiting on the same wait queue. |
| */ |
| static void |
| megasas_complete_abort(struct megasas_instance *instance, |
| struct megasas_cmd *cmd) |
| { |
| if (cmd->sync_cmd) { |
| cmd->sync_cmd = 0; |
| cmd->cmd_status_drv = 0; |
| wake_up(&instance->abort_cmd_wait_q); |
| } |
| } |
| |
| /** |
| * megasas_complete_cmd - Completes a command |
| * @instance: Adapter soft state |
| * @cmd: Command to be completed |
| * @alt_status: If non-zero, use this value as status to |
| * SCSI mid-layer instead of the value returned |
| * by the FW. This should be used if caller wants |
| * an alternate status (as in the case of aborted |
| * commands) |
| */ |
| void |
| megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd, |
| u8 alt_status) |
| { |
| int exception = 0; |
| struct megasas_header *hdr = &cmd->frame->hdr; |
| unsigned long flags; |
| struct fusion_context *fusion = instance->ctrl_context; |
| u32 opcode, status; |
| |
| /* flag for the retry reset */ |
| cmd->retry_for_fw_reset = 0; |
| |
| if (cmd->scmd) |
| cmd->scmd->SCp.ptr = NULL; |
| |
| switch (hdr->cmd) { |
| case MFI_CMD_INVALID: |
| /* Some older 1068 controller FW may keep a pended |
| MR_DCMD_CTRL_EVENT_GET_INFO left over from the main kernel |
| when booting the kdump kernel. Ignore this command to |
| prevent a kernel panic on shutdown of the kdump kernel. */ |
| dev_warn(&instance->pdev->dev, "MFI_CMD_INVALID command " |
| "completed\n"); |
| dev_warn(&instance->pdev->dev, "If you have a controller " |
| "other than PERC5, please upgrade your firmware\n"); |
| break; |
| case MFI_CMD_PD_SCSI_IO: |
| case MFI_CMD_LD_SCSI_IO: |
| |
| /* |
| * MFI_CMD_PD_SCSI_IO and MFI_CMD_LD_SCSI_IO could have been |
| * issued either through an IO path or an IOCTL path. If it |
| * was via IOCTL, we will send it to internal completion. |
| */ |
| if (cmd->sync_cmd) { |
| cmd->sync_cmd = 0; |
| megasas_complete_int_cmd(instance, cmd); |
| break; |
| } |
| |
| case MFI_CMD_LD_READ: |
| case MFI_CMD_LD_WRITE: |
| |
| if (alt_status) { |
| cmd->scmd->result = alt_status << 16; |
| exception = 1; |
| } |
| |
| if (exception) { |
| |
| atomic_dec(&instance->fw_outstanding); |
| |
| scsi_dma_unmap(cmd->scmd); |
| cmd->scmd->scsi_done(cmd->scmd); |
| megasas_return_cmd(instance, cmd); |
| |
| break; |
| } |
| |
| switch (hdr->cmd_status) { |
| |
| case MFI_STAT_OK: |
| cmd->scmd->result = DID_OK << 16; |
| break; |
| |
| case MFI_STAT_SCSI_IO_FAILED: |
| case MFI_STAT_LD_INIT_IN_PROGRESS: |
| cmd->scmd->result = |
| (DID_ERROR << 16) | hdr->scsi_status; |
| break; |
| |
| case MFI_STAT_SCSI_DONE_WITH_ERROR: |
| |
| cmd->scmd->result = (DID_OK << 16) | hdr->scsi_status; |
| |
| if (hdr->scsi_status == SAM_STAT_CHECK_CONDITION) { |
| memset(cmd->scmd->sense_buffer, 0, |
| SCSI_SENSE_BUFFERSIZE); |
| memcpy(cmd->scmd->sense_buffer, cmd->sense, |
| hdr->sense_len); |
| |
| cmd->scmd->result |= DRIVER_SENSE << 24; |
| } |
| |
| break; |
| |
| case MFI_STAT_LD_OFFLINE: |
| case MFI_STAT_DEVICE_NOT_FOUND: |
| cmd->scmd->result = DID_BAD_TARGET << 16; |
| break; |
| |
| default: |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "MFI FW status %#x\n", |
| hdr->cmd_status); |
| cmd->scmd->result = DID_ERROR << 16; |
| break; |
| } |
| |
| atomic_dec(&instance->fw_outstanding); |
| |
| scsi_dma_unmap(cmd->scmd); |
| cmd->scmd->scsi_done(cmd->scmd); |
| megasas_return_cmd(instance, cmd); |
| |
| break; |
| |
| case MFI_CMD_SMP: |
| case MFI_CMD_STP: |
| case MFI_CMD_DCMD: |
| opcode = le32_to_cpu(cmd->frame->dcmd.opcode); |
| /* Check for LD map update */ |
| if ((opcode == MR_DCMD_LD_MAP_GET_INFO) |
| && (cmd->frame->dcmd.mbox.b[1] == 1)) { |
| fusion->fast_path_io = 0; |
| spin_lock_irqsave(instance->host->host_lock, flags); |
| instance->map_update_cmd = NULL; |
| if (cmd->frame->hdr.cmd_status != 0) { |
| if (cmd->frame->hdr.cmd_status != |
| MFI_STAT_NOT_FOUND) |
| dev_warn(&instance->pdev->dev, "map syncfailed, status = 0x%x\n", |
| cmd->frame->hdr.cmd_status); |
| else { |
| megasas_return_cmd(instance, cmd); |
| spin_unlock_irqrestore( |
| instance->host->host_lock, |
| flags); |
| break; |
| } |
| } else |
| instance->map_id++; |
| megasas_return_cmd(instance, cmd); |
| |
| /* |
| * Set fast path IO to ZERO. |
| * Validate Map will set proper value. |
| * Meanwhile all IOs will go as LD IO. |
| */ |
| if (MR_ValidateMapInfo(instance)) |
| fusion->fast_path_io = 1; |
| else |
| fusion->fast_path_io = 0; |
| megasas_sync_map_info(instance); |
| spin_unlock_irqrestore(instance->host->host_lock, |
| flags); |
| break; |
| } |
| if (opcode == MR_DCMD_CTRL_EVENT_GET_INFO || |
| opcode == MR_DCMD_CTRL_EVENT_GET) { |
| spin_lock_irqsave(&poll_aen_lock, flags); |
| megasas_poll_wait_aen = 0; |
| spin_unlock_irqrestore(&poll_aen_lock, flags); |
| } |
| |
| /* FW has an updated PD sequence */ |
| if ((opcode == MR_DCMD_SYSTEM_PD_MAP_GET_INFO) && |
| (cmd->frame->dcmd.mbox.b[0] == 1)) { |
| |
| spin_lock_irqsave(instance->host->host_lock, flags); |
| status = cmd->frame->hdr.cmd_status; |
| instance->jbod_seq_cmd = NULL; |
| megasas_return_cmd(instance, cmd); |
| |
| if (status == MFI_STAT_OK) { |
| instance->pd_seq_map_id++; |
| /* Re-register a pd sync seq num cmd */ |
| if (megasas_sync_pd_seq_num(instance, true)) |
| instance->use_seqnum_jbod_fp = false; |
| } else |
| instance->use_seqnum_jbod_fp = false; |
| |
| spin_unlock_irqrestore(instance->host->host_lock, flags); |
| break; |
| } |
| |
| /* |
| * See if got an event notification |
| */ |
| if (opcode == MR_DCMD_CTRL_EVENT_WAIT) |
| megasas_service_aen(instance, cmd); |
| else |
| megasas_complete_int_cmd(instance, cmd); |
| |
| break; |
| |
| case MFI_CMD_ABORT: |
| /* |
| * Cmd issued to abort another cmd returned |
| */ |
| megasas_complete_abort(instance, cmd); |
| break; |
| |
| default: |
| dev_info(&instance->pdev->dev, "Unknown command completed! [0x%X]\n", |
| hdr->cmd); |
| break; |
| } |
| } |
| |
| /** |
| * megasas_issue_pending_cmds_again - issue all pending cmds |
| * in FW again because of the fw reset |
| * @instance: Adapter soft state |
| */ |
| static inline void |
| megasas_issue_pending_cmds_again(struct megasas_instance *instance) |
| { |
| struct megasas_cmd *cmd; |
| struct list_head clist_local; |
| union megasas_evt_class_locale class_locale; |
| unsigned long flags; |
| u32 seq_num; |
| |
| INIT_LIST_HEAD(&clist_local); |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| list_splice_init(&instance->internal_reset_pending_q, &clist_local); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| while (!list_empty(&clist_local)) { |
| cmd = list_entry((&clist_local)->next, |
| struct megasas_cmd, list); |
| list_del_init(&cmd->list); |
| |
| if (cmd->sync_cmd || cmd->scmd) { |
| dev_notice(&instance->pdev->dev, "command %p, %p:%d" |
| "detected to be pending while HBA reset\n", |
| cmd, cmd->scmd, cmd->sync_cmd); |
| |
| cmd->retry_for_fw_reset++; |
| |
| if (cmd->retry_for_fw_reset == 3) { |
| dev_notice(&instance->pdev->dev, "cmd %p, %p:%d" |
| "was tried multiple times during reset." |
| "Shutting down the HBA\n", |
| cmd, cmd->scmd, cmd->sync_cmd); |
| instance->instancet->disable_intr(instance); |
| atomic_set(&instance->fw_reset_no_pci_access, 1); |
| megaraid_sas_kill_hba(instance); |
| return; |
| } |
| } |
| |
| if (cmd->sync_cmd == 1) { |
| if (cmd->scmd) { |
| dev_notice(&instance->pdev->dev, "unexpected" |
| "cmd attached to internal command!\n"); |
| } |
| dev_notice(&instance->pdev->dev, "%p synchronous cmd" |
| "on the internal reset queue," |
| "issue it again.\n", cmd); |
| cmd->cmd_status_drv = MFI_STAT_INVALID_STATUS; |
| instance->instancet->fire_cmd(instance, |
| cmd->frame_phys_addr, |
| 0, instance->reg_set); |
| } else if (cmd->scmd) { |
| dev_notice(&instance->pdev->dev, "%p scsi cmd [%02x]" |
| "detected on the internal queue, issue again.\n", |
| cmd, cmd->scmd->cmnd[0]); |
| |
| atomic_inc(&instance->fw_outstanding); |
| instance->instancet->fire_cmd(instance, |
| cmd->frame_phys_addr, |
| cmd->frame_count-1, instance->reg_set); |
| } else { |
| dev_notice(&instance->pdev->dev, "%p unexpected cmd on the" |
| "internal reset defer list while re-issue!!\n", |
| cmd); |
| } |
| } |
| |
| if (instance->aen_cmd) { |
| dev_notice(&instance->pdev->dev, "aen_cmd in def process\n"); |
| megasas_return_cmd(instance, instance->aen_cmd); |
| |
| instance->aen_cmd = NULL; |
| } |
| |
| /* |
| * Initiate AEN (Asynchronous Event Notification) |
| */ |
| seq_num = instance->last_seq_num; |
| class_locale.members.reserved = 0; |
| class_locale.members.locale = MR_EVT_LOCALE_ALL; |
| class_locale.members.class = MR_EVT_CLASS_DEBUG; |
| |
| megasas_register_aen(instance, seq_num, class_locale.word); |
| } |
| |
| /** |
| * Move the internal reset pending commands to a deferred queue. |
| * |
| * We move the commands pending at internal reset time to a |
| * pending queue. This queue would be flushed after successful |
| * completion of the internal reset sequence. if the internal reset |
| * did not complete in time, the kernel reset handler would flush |
| * these commands. |
| **/ |
| static void |
| megasas_internal_reset_defer_cmds(struct megasas_instance *instance) |
| { |
| struct megasas_cmd *cmd; |
| int i; |
| u32 max_cmd = instance->max_fw_cmds; |
| u32 defer_index; |
| unsigned long flags; |
| |
| defer_index = 0; |
| spin_lock_irqsave(&instance->mfi_pool_lock, flags); |
| for (i = 0; i < max_cmd; i++) { |
| cmd = instance->cmd_list[i]; |
| if (cmd->sync_cmd == 1 || cmd->scmd) { |
| dev_notice(&instance->pdev->dev, "moving cmd[%d]:%p:%d:%p" |
| "on the defer queue as internal\n", |
| defer_index, cmd, cmd->sync_cmd, cmd->scmd); |
| |
| if (!list_empty(&cmd->list)) { |
| dev_notice(&instance->pdev->dev, "ERROR while" |
| " moving this cmd:%p, %d %p, it was" |
| "discovered on some list?\n", |
| cmd, cmd->sync_cmd, cmd->scmd); |
| |
| list_del_init(&cmd->list); |
| } |
| defer_index++; |
| list_add_tail(&cmd->list, |
| &instance->internal_reset_pending_q); |
| } |
| } |
| spin_unlock_irqrestore(&instance->mfi_pool_lock, flags); |
| } |
| |
| |
| static void |
| process_fw_state_change_wq(struct work_struct *work) |
| { |
| struct megasas_instance *instance = |
| container_of(work, struct megasas_instance, work_init); |
| u32 wait; |
| unsigned long flags; |
| |
| if (atomic_read(&instance->adprecovery) != MEGASAS_ADPRESET_SM_INFAULT) { |
| dev_notice(&instance->pdev->dev, "error, recovery st %x\n", |
| atomic_read(&instance->adprecovery)); |
| return ; |
| } |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_ADPRESET_SM_INFAULT) { |
| dev_notice(&instance->pdev->dev, "FW detected to be in fault" |
| "state, restarting it...\n"); |
| |
| instance->instancet->disable_intr(instance); |
| atomic_set(&instance->fw_outstanding, 0); |
| |
| atomic_set(&instance->fw_reset_no_pci_access, 1); |
| instance->instancet->adp_reset(instance, instance->reg_set); |
| atomic_set(&instance->fw_reset_no_pci_access, 0); |
| |
| dev_notice(&instance->pdev->dev, "FW restarted successfully," |
| "initiating next stage...\n"); |
| |
| dev_notice(&instance->pdev->dev, "HBA recovery state machine," |
| "state 2 starting...\n"); |
| |
| /* waiting for about 20 second before start the second init */ |
| for (wait = 0; wait < 30; wait++) { |
| msleep(1000); |
| } |
| |
| if (megasas_transition_to_ready(instance, 1)) { |
| dev_notice(&instance->pdev->dev, "adapter not ready\n"); |
| |
| atomic_set(&instance->fw_reset_no_pci_access, 1); |
| megaraid_sas_kill_hba(instance); |
| return ; |
| } |
| |
| if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) || |
| (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) || |
| (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR) |
| ) { |
| *instance->consumer = *instance->producer; |
| } else { |
| *instance->consumer = 0; |
| *instance->producer = 0; |
| } |
| |
| megasas_issue_init_mfi(instance); |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| instance->instancet->enable_intr(instance); |
| |
| megasas_issue_pending_cmds_again(instance); |
| instance->issuepend_done = 1; |
| } |
| } |
| |
| /** |
| * megasas_deplete_reply_queue - Processes all completed commands |
| * @instance: Adapter soft state |
| * @alt_status: Alternate status to be returned to |
| * SCSI mid-layer instead of the status |
| * returned by the FW |
| * Note: this must be called with hba lock held |
| */ |
| static int |
| megasas_deplete_reply_queue(struct megasas_instance *instance, |
| u8 alt_status) |
| { |
| u32 mfiStatus; |
| u32 fw_state; |
| |
| if ((mfiStatus = instance->instancet->check_reset(instance, |
| instance->reg_set)) == 1) { |
| return IRQ_HANDLED; |
| } |
| |
| if ((mfiStatus = instance->instancet->clear_intr( |
| instance->reg_set) |
| ) == 0) { |
| /* Hardware may not set outbound_intr_status in MSI-X mode */ |
| if (!instance->msix_vectors) |
| return IRQ_NONE; |
| } |
| |
| instance->mfiStatus = mfiStatus; |
| |
| if ((mfiStatus & MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE)) { |
| fw_state = instance->instancet->read_fw_status_reg( |
| instance->reg_set) & MFI_STATE_MASK; |
| |
| if (fw_state != MFI_STATE_FAULT) { |
| dev_notice(&instance->pdev->dev, "fw state:%x\n", |
| fw_state); |
| } |
| |
| if ((fw_state == MFI_STATE_FAULT) && |
| (instance->disableOnlineCtrlReset == 0)) { |
| dev_notice(&instance->pdev->dev, "wait adp restart\n"); |
| |
| if ((instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS1064R) || |
| (instance->pdev->device == |
| PCI_DEVICE_ID_DELL_PERC5) || |
| (instance->pdev->device == |
| PCI_DEVICE_ID_LSI_VERDE_ZCR)) { |
| |
| *instance->consumer = |
| cpu_to_le32(MEGASAS_ADPRESET_INPROG_SIGN); |
| } |
| |
| |
| instance->instancet->disable_intr(instance); |
| atomic_set(&instance->adprecovery, MEGASAS_ADPRESET_SM_INFAULT); |
| instance->issuepend_done = 0; |
| |
| atomic_set(&instance->fw_outstanding, 0); |
| megasas_internal_reset_defer_cmds(instance); |
| |
| dev_notice(&instance->pdev->dev, "fwState=%x, stage:%d\n", |
| fw_state, atomic_read(&instance->adprecovery)); |
| |
| schedule_work(&instance->work_init); |
| return IRQ_HANDLED; |
| |
| } else { |
| dev_notice(&instance->pdev->dev, "fwstate:%x, dis_OCR=%x\n", |
| fw_state, instance->disableOnlineCtrlReset); |
| } |
| } |
| |
| tasklet_schedule(&instance->isr_tasklet); |
| return IRQ_HANDLED; |
| } |
| /** |
| * megasas_isr - isr entry point |
| */ |
| static irqreturn_t megasas_isr(int irq, void *devp) |
| { |
| struct megasas_irq_context *irq_context = devp; |
| struct megasas_instance *instance = irq_context->instance; |
| unsigned long flags; |
| irqreturn_t rc; |
| |
| if (atomic_read(&instance->fw_reset_no_pci_access)) |
| return IRQ_HANDLED; |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| rc = megasas_deplete_reply_queue(instance, DID_OK); |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| return rc; |
| } |
| |
| /** |
| * megasas_transition_to_ready - Move the FW to READY state |
| * @instance: Adapter soft state |
| * |
| * During the initialization, FW passes can potentially be in any one of |
| * several possible states. If the FW in operational, waiting-for-handshake |
| * states, driver must take steps to bring it to ready state. Otherwise, it |
| * has to wait for the ready state. |
| */ |
| int |
| megasas_transition_to_ready(struct megasas_instance *instance, int ocr) |
| { |
| int i; |
| u8 max_wait; |
| u32 fw_state; |
| u32 cur_state; |
| u32 abs_state, curr_abs_state; |
| |
| abs_state = instance->instancet->read_fw_status_reg(instance->reg_set); |
| fw_state = abs_state & MFI_STATE_MASK; |
| |
| if (fw_state != MFI_STATE_READY) |
| dev_info(&instance->pdev->dev, "Waiting for FW to come to ready" |
| " state\n"); |
| |
| while (fw_state != MFI_STATE_READY) { |
| |
| switch (fw_state) { |
| |
| case MFI_STATE_FAULT: |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW in FAULT state!!\n"); |
| if (ocr) { |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_FAULT; |
| break; |
| } else |
| return -ENODEV; |
| |
| case MFI_STATE_WAIT_HANDSHAKE: |
| /* |
| * Set the CLR bit in inbound doorbell |
| */ |
| if ((instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
| (instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
| (instance->ctrl_context)) |
| writel( |
| MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, |
| &instance->reg_set->doorbell); |
| else |
| writel( |
| MFI_INIT_CLEAR_HANDSHAKE|MFI_INIT_HOTPLUG, |
| &instance->reg_set->inbound_doorbell); |
| |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_WAIT_HANDSHAKE; |
| break; |
| |
| case MFI_STATE_BOOT_MESSAGE_PENDING: |
| if ((instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
| (instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
| (instance->ctrl_context)) |
| writel(MFI_INIT_HOTPLUG, |
| &instance->reg_set->doorbell); |
| else |
| writel(MFI_INIT_HOTPLUG, |
| &instance->reg_set->inbound_doorbell); |
| |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_BOOT_MESSAGE_PENDING; |
| break; |
| |
| case MFI_STATE_OPERATIONAL: |
| /* |
| * Bring it to READY state; assuming max wait 10 secs |
| */ |
| instance->instancet->disable_intr(instance); |
| if ((instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
| (instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0071SKINNY) || |
| (instance->ctrl_context)) { |
| writel(MFI_RESET_FLAGS, |
| &instance->reg_set->doorbell); |
| |
| if (instance->ctrl_context) { |
| for (i = 0; i < (10 * 1000); i += 20) { |
| if (readl( |
| &instance-> |
| reg_set-> |
| doorbell) & 1) |
| msleep(20); |
| else |
| break; |
| } |
| } |
| } else |
| writel(MFI_RESET_FLAGS, |
| &instance->reg_set->inbound_doorbell); |
| |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_OPERATIONAL; |
| break; |
| |
| case MFI_STATE_UNDEFINED: |
| /* |
| * This state should not last for more than 2 seconds |
| */ |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_UNDEFINED; |
| break; |
| |
| case MFI_STATE_BB_INIT: |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_BB_INIT; |
| break; |
| |
| case MFI_STATE_FW_INIT: |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_FW_INIT; |
| break; |
| |
| case MFI_STATE_FW_INIT_2: |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_FW_INIT_2; |
| break; |
| |
| case MFI_STATE_DEVICE_SCAN: |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_DEVICE_SCAN; |
| break; |
| |
| case MFI_STATE_FLUSH_CACHE: |
| max_wait = MEGASAS_RESET_WAIT_TIME; |
| cur_state = MFI_STATE_FLUSH_CACHE; |
| break; |
| |
| default: |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Unknown state 0x%x\n", |
| fw_state); |
| return -ENODEV; |
| } |
| |
| /* |
| * The cur_state should not last for more than max_wait secs |
| */ |
| for (i = 0; i < (max_wait * 1000); i++) { |
| curr_abs_state = instance->instancet-> |
| read_fw_status_reg(instance->reg_set); |
| |
| if (abs_state == curr_abs_state) { |
| msleep(1); |
| } else |
| break; |
| } |
| |
| /* |
| * Return error if fw_state hasn't changed after max_wait |
| */ |
| if (curr_abs_state == abs_state) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "FW state [%d] hasn't changed " |
| "in %d secs\n", fw_state, max_wait); |
| return -ENODEV; |
| } |
| |
| abs_state = curr_abs_state; |
| fw_state = curr_abs_state & MFI_STATE_MASK; |
| } |
| dev_info(&instance->pdev->dev, "FW now in Ready state\n"); |
| |
| return 0; |
| } |
| |
| /** |
| * megasas_teardown_frame_pool - Destroy the cmd frame DMA pool |
| * @instance: Adapter soft state |
| */ |
| static void megasas_teardown_frame_pool(struct megasas_instance *instance) |
| { |
| int i; |
| u32 max_cmd = instance->max_mfi_cmds; |
| struct megasas_cmd *cmd; |
| |
| if (!instance->frame_dma_pool) |
| return; |
| |
| /* |
| * Return all frames to pool |
| */ |
| for (i = 0; i < max_cmd; i++) { |
| |
| cmd = instance->cmd_list[i]; |
| |
| if (cmd->frame) |
| pci_pool_free(instance->frame_dma_pool, cmd->frame, |
| cmd->frame_phys_addr); |
| |
| if (cmd->sense) |
| pci_pool_free(instance->sense_dma_pool, cmd->sense, |
| cmd->sense_phys_addr); |
| } |
| |
| /* |
| * Now destroy the pool itself |
| */ |
| pci_pool_destroy(instance->frame_dma_pool); |
| pci_pool_destroy(instance->sense_dma_pool); |
| |
| instance->frame_dma_pool = NULL; |
| instance->sense_dma_pool = NULL; |
| } |
| |
| /** |
| * megasas_create_frame_pool - Creates DMA pool for cmd frames |
| * @instance: Adapter soft state |
| * |
| * Each command packet has an embedded DMA memory buffer that is used for |
| * filling MFI frame and the SG list that immediately follows the frame. This |
| * function creates those DMA memory buffers for each command packet by using |
| * PCI pool facility. |
| */ |
| static int megasas_create_frame_pool(struct megasas_instance *instance) |
| { |
| int i; |
| u32 max_cmd; |
| u32 sge_sz; |
| u32 total_sz; |
| u32 frame_count; |
| struct megasas_cmd *cmd; |
| |
| max_cmd = instance->max_mfi_cmds; |
| |
| /* |
| * Size of our frame is 64 bytes for MFI frame, followed by max SG |
| * elements and finally SCSI_SENSE_BUFFERSIZE bytes for sense buffer |
| */ |
| sge_sz = (IS_DMA64) ? sizeof(struct megasas_sge64) : |
| sizeof(struct megasas_sge32); |
| |
| if (instance->flag_ieee) |
| sge_sz = sizeof(struct megasas_sge_skinny); |
| |
| /* |
| * For MFI controllers. |
| * max_num_sge = 60 |
| * max_sge_sz = 16 byte (sizeof megasas_sge_skinny) |
| * Total 960 byte (15 MFI frame of 64 byte) |
| * |
| * Fusion adapter require only 3 extra frame. |
| * max_num_sge = 16 (defined as MAX_IOCTL_SGE) |
| * max_sge_sz = 12 byte (sizeof megasas_sge64) |
| * Total 192 byte (3 MFI frame of 64 byte) |
| */ |
| frame_count = instance->ctrl_context ? (3 + 1) : (15 + 1); |
| total_sz = MEGAMFI_FRAME_SIZE * frame_count; |
| /* |
| * Use DMA pool facility provided by PCI layer |
| */ |
| instance->frame_dma_pool = pci_pool_create("megasas frame pool", |
| instance->pdev, total_sz, 256, 0); |
| |
| if (!instance->frame_dma_pool) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n"); |
| return -ENOMEM; |
| } |
| |
| instance->sense_dma_pool = pci_pool_create("megasas sense pool", |
| instance->pdev, 128, 4, 0); |
| |
| if (!instance->sense_dma_pool) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n"); |
| |
| pci_pool_destroy(instance->frame_dma_pool); |
| instance->frame_dma_pool = NULL; |
| |
| return -ENOMEM; |
| } |
| |
| /* |
| * Allocate and attach a frame to each of the commands in cmd_list. |
| * By making cmd->index as the context instead of the &cmd, we can |
| * always use 32bit context regardless of the architecture |
| */ |
| for (i = 0; i < max_cmd; i++) { |
| |
| cmd = instance->cmd_list[i]; |
| |
| cmd->frame = pci_pool_alloc(instance->frame_dma_pool, |
| GFP_KERNEL, &cmd->frame_phys_addr); |
| |
| cmd->sense = pci_pool_alloc(instance->sense_dma_pool, |
| GFP_KERNEL, &cmd->sense_phys_addr); |
| |
| /* |
| * megasas_teardown_frame_pool() takes care of freeing |
| * whatever has been allocated |
| */ |
| if (!cmd->frame || !cmd->sense) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n"); |
| megasas_teardown_frame_pool(instance); |
| return -ENOMEM; |
| } |
| |
| memset(cmd->frame, 0, total_sz); |
| cmd->frame->io.context = cpu_to_le32(cmd->index); |
| cmd->frame->io.pad_0 = 0; |
| if (!instance->ctrl_context && reset_devices) |
| cmd->frame->hdr.cmd = MFI_CMD_INVALID; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * megasas_free_cmds - Free all the cmds in the free cmd pool |
| * @instance: Adapter soft state |
| */ |
| void megasas_free_cmds(struct megasas_instance *instance) |
| { |
| int i; |
| |
| /* First free the MFI frame pool */ |
| megasas_teardown_frame_pool(instance); |
| |
| /* Free all the commands in the cmd_list */ |
| for (i = 0; i < instance->max_mfi_cmds; i++) |
| |
| kfree(instance->cmd_list[i]); |
| |
| /* Free the cmd_list buffer itself */ |
| kfree(instance->cmd_list); |
| instance->cmd_list = NULL; |
| |
| INIT_LIST_HEAD(&instance->cmd_pool); |
| } |
| |
| /** |
| * megasas_alloc_cmds - Allocates the command packets |
| * @instance: Adapter soft state |
| * |
| * Each command that is issued to the FW, whether IO commands from the OS or |
| * internal commands like IOCTLs, are wrapped in local data structure called |
| * megasas_cmd. The frame embedded in this megasas_cmd is actually issued to |
| * the FW. |
| * |
| * Each frame has a 32-bit field called context (tag). This context is used |
| * to get back the megasas_cmd from the frame when a frame gets completed in |
| * the ISR. Typically the address of the megasas_cmd itself would be used as |
| * the context. But we wanted to keep the differences between 32 and 64 bit |
| * systems to the mininum. We always use 32 bit integers for the context. In |
| * this driver, the 32 bit values are the indices into an array cmd_list. |
| * This array is used only to look up the megasas_cmd given the context. The |
| * free commands themselves are maintained in a linked list called cmd_pool. |
| */ |
| int megasas_alloc_cmds(struct megasas_instance *instance) |
| { |
| int i; |
| int j; |
| u32 max_cmd; |
| struct megasas_cmd *cmd; |
| struct fusion_context *fusion; |
| |
| fusion = instance->ctrl_context; |
| max_cmd = instance->max_mfi_cmds; |
| |
| /* |
| * instance->cmd_list is an array of struct megasas_cmd pointers. |
| * Allocate the dynamic array first and then allocate individual |
| * commands. |
| */ |
| instance->cmd_list = kcalloc(max_cmd, sizeof(struct megasas_cmd*), GFP_KERNEL); |
| |
| if (!instance->cmd_list) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| memset(instance->cmd_list, 0, sizeof(struct megasas_cmd *) *max_cmd); |
| |
| for (i = 0; i < max_cmd; i++) { |
| instance->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd), |
| GFP_KERNEL); |
| |
| if (!instance->cmd_list[i]) { |
| |
| for (j = 0; j < i; j++) |
| kfree(instance->cmd_list[j]); |
| |
| kfree(instance->cmd_list); |
| instance->cmd_list = NULL; |
| |
| return -ENOMEM; |
| } |
| } |
| |
| for (i = 0; i < max_cmd; i++) { |
| cmd = instance->cmd_list[i]; |
| memset(cmd, 0, sizeof(struct megasas_cmd)); |
| cmd->index = i; |
| cmd->scmd = NULL; |
| cmd->instance = instance; |
| |
| list_add_tail(&cmd->list, &instance->cmd_pool); |
| } |
| |
| /* |
| * Create a frame pool and assign one frame to each cmd |
| */ |
| if (megasas_create_frame_pool(instance)) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error creating frame DMA pool\n"); |
| megasas_free_cmds(instance); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * dcmd_timeout_ocr_possible - Check if OCR is possible based on Driver/FW state. |
| * @instance: Adapter soft state |
| * |
| * Return 0 for only Fusion adapter, if driver load/unload is not in progress |
| * or FW is not under OCR. |
| */ |
| inline int |
| dcmd_timeout_ocr_possible(struct megasas_instance *instance) { |
| |
| if (!instance->ctrl_context) |
| return KILL_ADAPTER; |
| else if (instance->unload || |
| test_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags)) |
| return IGNORE_TIMEOUT; |
| else |
| return INITIATE_OCR; |
| } |
| |
| static int |
| megasas_get_pd_info(struct megasas_instance *instance, u16 device_id) |
| { |
| int ret; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_err(&instance->pdev->dev, "Failed to get cmd %s\n", __func__); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| memset(instance->pd_info, 0, sizeof(*instance->pd_info)); |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->mbox.s[0] = cpu_to_le16(device_id); |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = 0xFF; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_PD_INFO)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_PD_GET_INFO); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->pd_info_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_PD_INFO)); |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
| else |
| ret = megasas_issue_polled(instance, cmd); |
| |
| switch (ret) { |
| case DCMD_SUCCESS: |
| instance->pd_list[device_id].interface = |
| instance->pd_info->state.ddf.pdType.intf; |
| break; |
| |
| case DCMD_TIMEOUT: |
| |
| switch (dcmd_timeout_ocr_possible(instance)) { |
| case INITIATE_OCR: |
| cmd->flags |= DRV_DCMD_SKIP_REFIRE; |
| megasas_reset_fusion(instance->host, |
| MFI_IO_TIMEOUT_OCR); |
| break; |
| case KILL_ADAPTER: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case IGNORE_TIMEOUT: |
| dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", |
| __func__, __LINE__); |
| break; |
| } |
| |
| break; |
| } |
| |
| if (ret != DCMD_TIMEOUT) |
| megasas_return_cmd(instance, cmd); |
| |
| return ret; |
| } |
| /* |
| * megasas_get_pd_list_info - Returns FW's pd_list structure |
| * @instance: Adapter soft state |
| * @pd_list: pd_list structure |
| * |
| * Issues an internal command (DCMD) to get the FW's controller PD |
| * list structure. This information is mainly used to find out SYSTEM |
| * supported by the FW. |
| */ |
| static int |
| megasas_get_pd_list(struct megasas_instance *instance) |
| { |
| int ret = 0, pd_index = 0; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct MR_PD_LIST *ci; |
| struct MR_PD_ADDRESS *pd_addr; |
| dma_addr_t ci_h = 0; |
| |
| if (instance->pd_list_not_supported) { |
| dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " |
| "not supported by firmware\n"); |
| return ret; |
| } |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "(get_pd_list): Failed to get cmd\n"); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| ci = pci_alloc_consistent(instance->pdev, |
| MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), &ci_h); |
| |
| if (!ci) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for pd_list\n"); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| memset(ci, 0, sizeof(*ci)); |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->mbox.b[0] = MR_PD_QUERY_TYPE_EXPOSED_TO_HOST; |
| dcmd->mbox.b[1] = 0; |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_PD_LIST_QUERY); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST)); |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| ret = megasas_issue_blocked_cmd(instance, cmd, |
| MFI_IO_TIMEOUT_SECS); |
| else |
| ret = megasas_issue_polled(instance, cmd); |
| |
| switch (ret) { |
| case DCMD_FAILED: |
| dev_info(&instance->pdev->dev, "MR_DCMD_PD_LIST_QUERY " |
| "failed/not supported by firmware\n"); |
| |
| if (instance->ctrl_context) |
| megaraid_sas_kill_hba(instance); |
| else |
| instance->pd_list_not_supported = 1; |
| break; |
| case DCMD_TIMEOUT: |
| |
| switch (dcmd_timeout_ocr_possible(instance)) { |
| case INITIATE_OCR: |
| cmd->flags |= DRV_DCMD_SKIP_REFIRE; |
| /* |
| * DCMD failed from AEN path. |
| * AEN path already hold reset_mutex to avoid PCI access |
| * while OCR is in progress. |
| */ |
| mutex_unlock(&instance->reset_mutex); |
| megasas_reset_fusion(instance->host, |
| MFI_IO_TIMEOUT_OCR); |
| mutex_lock(&instance->reset_mutex); |
| break; |
| case KILL_ADAPTER: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case IGNORE_TIMEOUT: |
| dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d \n", |
| __func__, __LINE__); |
| break; |
| } |
| |
| break; |
| |
| case DCMD_SUCCESS: |
| pd_addr = ci->addr; |
| |
| if ((le32_to_cpu(ci->count) > |
| (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) |
| break; |
| |
| memset(instance->local_pd_list, 0, |
| MEGASAS_MAX_PD * sizeof(struct megasas_pd_list)); |
| |
| for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) { |
| instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid = |
| le16_to_cpu(pd_addr->deviceId); |
| instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType = |
| pd_addr->scsiDevType; |
| instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState = |
| MR_PD_STATE_SYSTEM; |
| pd_addr++; |
| } |
| |
| memcpy(instance->pd_list, instance->local_pd_list, |
| sizeof(instance->pd_list)); |
| break; |
| |
| } |
| |
| pci_free_consistent(instance->pdev, |
| MEGASAS_MAX_PD * sizeof(struct MR_PD_LIST), |
| ci, ci_h); |
| |
| if (ret != DCMD_TIMEOUT) |
| megasas_return_cmd(instance, cmd); |
| |
| return ret; |
| } |
| |
| /* |
| * megasas_get_ld_list_info - Returns FW's ld_list structure |
| * @instance: Adapter soft state |
| * @ld_list: ld_list structure |
| * |
| * Issues an internal command (DCMD) to get the FW's controller PD |
| * list structure. This information is mainly used to find out SYSTEM |
| * supported by the FW. |
| */ |
| static int |
| megasas_get_ld_list(struct megasas_instance *instance) |
| { |
| int ret = 0, ld_index = 0, ids = 0; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct MR_LD_LIST *ci; |
| dma_addr_t ci_h = 0; |
| u32 ld_count; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "megasas_get_ld_list: Failed to get cmd\n"); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| ci = pci_alloc_consistent(instance->pdev, |
| sizeof(struct MR_LD_LIST), |
| &ci_h); |
| |
| if (!ci) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem in get_ld_list\n"); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| memset(ci, 0, sizeof(*ci)); |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| if (instance->supportmax256vd) |
| dcmd->mbox.b[0] = 1; |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_LIST)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_LD_GET_LIST); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_LIST)); |
| dcmd->pad_0 = 0; |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| ret = megasas_issue_blocked_cmd(instance, cmd, |
| MFI_IO_TIMEOUT_SECS); |
| else |
| ret = megasas_issue_polled(instance, cmd); |
| |
| ld_count = le32_to_cpu(ci->ldCount); |
| |
| switch (ret) { |
| case DCMD_FAILED: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case DCMD_TIMEOUT: |
| |
| switch (dcmd_timeout_ocr_possible(instance)) { |
| case INITIATE_OCR: |
| cmd->flags |= DRV_DCMD_SKIP_REFIRE; |
| /* |
| * DCMD failed from AEN path. |
| * AEN path already hold reset_mutex to avoid PCI access |
| * while OCR is in progress. |
| */ |
| mutex_unlock(&instance->reset_mutex); |
| megasas_reset_fusion(instance->host, |
| MFI_IO_TIMEOUT_OCR); |
| mutex_lock(&instance->reset_mutex); |
| break; |
| case KILL_ADAPTER: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case IGNORE_TIMEOUT: |
| dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", |
| __func__, __LINE__); |
| break; |
| } |
| |
| break; |
| |
| case DCMD_SUCCESS: |
| if (ld_count > instance->fw_supported_vd_count) |
| break; |
| |
| memset(instance->ld_ids, 0xff, MAX_LOGICAL_DRIVES_EXT); |
| |
| for (ld_index = 0; ld_index < ld_count; ld_index++) { |
| if (ci->ldList[ld_index].state != 0) { |
| ids = ci->ldList[ld_index].ref.targetId; |
| instance->ld_ids[ids] = ci->ldList[ld_index].ref.targetId; |
| } |
| } |
| |
| break; |
| } |
| |
| pci_free_consistent(instance->pdev, sizeof(struct MR_LD_LIST), ci, ci_h); |
| |
| if (ret != DCMD_TIMEOUT) |
| megasas_return_cmd(instance, cmd); |
| |
| return ret; |
| } |
| |
| /** |
| * megasas_ld_list_query - Returns FW's ld_list structure |
| * @instance: Adapter soft state |
| * @ld_list: ld_list structure |
| * |
| * Issues an internal command (DCMD) to get the FW's controller PD |
| * list structure. This information is mainly used to find out SYSTEM |
| * supported by the FW. |
| */ |
| static int |
| megasas_ld_list_query(struct megasas_instance *instance, u8 query_type) |
| { |
| int ret = 0, ld_index = 0, ids = 0; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct MR_LD_TARGETID_LIST *ci; |
| dma_addr_t ci_h = 0; |
| u32 tgtid_count; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_warn(&instance->pdev->dev, |
| "megasas_ld_list_query: Failed to get cmd\n"); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| ci = pci_alloc_consistent(instance->pdev, |
| sizeof(struct MR_LD_TARGETID_LIST), &ci_h); |
| |
| if (!ci) { |
| dev_warn(&instance->pdev->dev, |
| "Failed to alloc mem for ld_list_query\n"); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| memset(ci, 0, sizeof(*ci)); |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->mbox.b[0] = query_type; |
| if (instance->supportmax256vd) |
| dcmd->mbox.b[2] = 1; |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_LD_LIST_QUERY); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct MR_LD_TARGETID_LIST)); |
| dcmd->pad_0 = 0; |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
| else |
| ret = megasas_issue_polled(instance, cmd); |
| |
| switch (ret) { |
| case DCMD_FAILED: |
| dev_info(&instance->pdev->dev, |
| "DCMD not supported by firmware - %s %d\n", |
| __func__, __LINE__); |
| ret = megasas_get_ld_list(instance); |
| break; |
| case DCMD_TIMEOUT: |
| switch (dcmd_timeout_ocr_possible(instance)) { |
| case INITIATE_OCR: |
| cmd->flags |= DRV_DCMD_SKIP_REFIRE; |
| /* |
| * DCMD failed from AEN path. |
| * AEN path already hold reset_mutex to avoid PCI access |
| * while OCR is in progress. |
| */ |
| mutex_unlock(&instance->reset_mutex); |
| megasas_reset_fusion(instance->host, |
| MFI_IO_TIMEOUT_OCR); |
| mutex_lock(&instance->reset_mutex); |
| break; |
| case KILL_ADAPTER: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case IGNORE_TIMEOUT: |
| dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", |
| __func__, __LINE__); |
| break; |
| } |
| |
| break; |
| case DCMD_SUCCESS: |
| tgtid_count = le32_to_cpu(ci->count); |
| |
| if ((tgtid_count > (instance->fw_supported_vd_count))) |
| break; |
| |
| memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
| for (ld_index = 0; ld_index < tgtid_count; ld_index++) { |
| ids = ci->targetId[ld_index]; |
| instance->ld_ids[ids] = ci->targetId[ld_index]; |
| } |
| |
| break; |
| } |
| |
| pci_free_consistent(instance->pdev, sizeof(struct MR_LD_TARGETID_LIST), |
| ci, ci_h); |
| |
| if (ret != DCMD_TIMEOUT) |
| megasas_return_cmd(instance, cmd); |
| |
| return ret; |
| } |
| |
| /* |
| * megasas_update_ext_vd_details : Update details w.r.t Extended VD |
| * instance : Controller's instance |
| */ |
| static void megasas_update_ext_vd_details(struct megasas_instance *instance) |
| { |
| struct fusion_context *fusion; |
| u32 old_map_sz; |
| u32 new_map_sz; |
| |
| fusion = instance->ctrl_context; |
| /* For MFI based controllers return dummy success */ |
| if (!fusion) |
| return; |
| |
| instance->supportmax256vd = |
| instance->ctrl_info->adapterOperations3.supportMaxExtLDs; |
| /* Below is additional check to address future FW enhancement */ |
| if (instance->ctrl_info->max_lds > 64) |
| instance->supportmax256vd = 1; |
| |
| instance->drv_supported_vd_count = MEGASAS_MAX_LD_CHANNELS |
| * MEGASAS_MAX_DEV_PER_CHANNEL; |
| instance->drv_supported_pd_count = MEGASAS_MAX_PD_CHANNELS |
| * MEGASAS_MAX_DEV_PER_CHANNEL; |
| if (instance->supportmax256vd) { |
| instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES_EXT; |
| instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; |
| } else { |
| instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; |
| instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; |
| } |
| |
| dev_info(&instance->pdev->dev, |
| "firmware type\t: %s\n", |
| instance->supportmax256vd ? "Extended VD(240 VD)firmware" : |
| "Legacy(64 VD) firmware"); |
| |
| old_map_sz = sizeof(struct MR_FW_RAID_MAP) + |
| (sizeof(struct MR_LD_SPAN_MAP) * |
| (instance->fw_supported_vd_count - 1)); |
| new_map_sz = sizeof(struct MR_FW_RAID_MAP_EXT); |
| fusion->drv_map_sz = sizeof(struct MR_DRV_RAID_MAP) + |
| (sizeof(struct MR_LD_SPAN_MAP) * |
| (instance->drv_supported_vd_count - 1)); |
| |
| fusion->max_map_sz = max(old_map_sz, new_map_sz); |
| |
| |
| if (instance->supportmax256vd) |
| fusion->current_map_sz = new_map_sz; |
| else |
| fusion->current_map_sz = old_map_sz; |
| } |
| |
| /** |
| * megasas_get_controller_info - Returns FW's controller structure |
| * @instance: Adapter soft state |
| * |
| * Issues an internal command (DCMD) to get the FW's controller structure. |
| * This information is mainly used to find out the maximum IO transfer per |
| * command supported by the FW. |
| */ |
| int |
| megasas_get_ctrl_info(struct megasas_instance *instance) |
| { |
| int ret = 0; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct megasas_ctrl_info *ci; |
| struct megasas_ctrl_info *ctrl_info; |
| dma_addr_t ci_h = 0; |
| |
| ctrl_info = instance->ctrl_info; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a free cmd\n"); |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| ci = pci_alloc_consistent(instance->pdev, |
| sizeof(struct megasas_ctrl_info), &ci_h); |
| |
| if (!ci) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc mem for ctrl info\n"); |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| memset(ci, 0, sizeof(*ci)); |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_ctrl_info)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_GET_INFO); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_ctrl_info)); |
| dcmd->mbox.b[0] = 1; |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
| else |
| ret = megasas_issue_polled(instance, cmd); |
| |
| switch (ret) { |
| case DCMD_SUCCESS: |
| memcpy(ctrl_info, ci, sizeof(struct megasas_ctrl_info)); |
| /* Save required controller information in |
| * CPU endianness format. |
| */ |
| le32_to_cpus((u32 *)&ctrl_info->properties.OnOffProperties); |
| le32_to_cpus((u32 *)&ctrl_info->adapterOperations2); |
| le32_to_cpus((u32 *)&ctrl_info->adapterOperations3); |
| |
| /* Update the latest Ext VD info. |
| * From Init path, store current firmware details. |
| * From OCR path, detect any firmware properties changes. |
| * in case of Firmware upgrade without system reboot. |
| */ |
| megasas_update_ext_vd_details(instance); |
| instance->use_seqnum_jbod_fp = |
| ctrl_info->adapterOperations3.useSeqNumJbodFP; |
| |
| /*Check whether controller is iMR or MR */ |
| instance->is_imr = (ctrl_info->memory_size ? 0 : 1); |
| dev_info(&instance->pdev->dev, |
| "controller type\t: %s(%dMB)\n", |
| instance->is_imr ? "iMR" : "MR", |
| le16_to_cpu(ctrl_info->memory_size)); |
| |
| instance->disableOnlineCtrlReset = |
| ctrl_info->properties.OnOffProperties.disableOnlineCtrlReset; |
| instance->secure_jbod_support = |
| ctrl_info->adapterOperations3.supportSecurityonJBOD; |
| dev_info(&instance->pdev->dev, "Online Controller Reset(OCR)\t: %s\n", |
| instance->disableOnlineCtrlReset ? "Disabled" : "Enabled"); |
| dev_info(&instance->pdev->dev, "Secure JBOD support\t: %s\n", |
| instance->secure_jbod_support ? "Yes" : "No"); |
| break; |
| |
| case DCMD_TIMEOUT: |
| switch (dcmd_timeout_ocr_possible(instance)) { |
| case INITIATE_OCR: |
| cmd->flags |= DRV_DCMD_SKIP_REFIRE; |
| megasas_reset_fusion(instance->host, |
| MFI_IO_TIMEOUT_OCR); |
| break; |
| case KILL_ADAPTER: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case IGNORE_TIMEOUT: |
| dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", |
| __func__, __LINE__); |
| break; |
| } |
| case DCMD_FAILED: |
| megaraid_sas_kill_hba(instance); |
| break; |
| |
| } |
| |
| pci_free_consistent(instance->pdev, sizeof(struct megasas_ctrl_info), |
| ci, ci_h); |
| |
| megasas_return_cmd(instance, cmd); |
| |
| |
| return ret; |
| } |
| |
| /* |
| * megasas_set_crash_dump_params - Sends address of crash dump DMA buffer |
| * to firmware |
| * |
| * @instance: Adapter soft state |
| * @crash_buf_state - tell FW to turn ON/OFF crash dump feature |
| MR_CRASH_BUF_TURN_OFF = 0 |
| MR_CRASH_BUF_TURN_ON = 1 |
| * @return 0 on success non-zero on failure. |
| * Issues an internal command (DCMD) to set parameters for crash dump feature. |
| * Driver will send address of crash dump DMA buffer and set mbox to tell FW |
| * that driver supports crash dump feature. This DCMD will be sent only if |
| * crash dump feature is supported by the FW. |
| * |
| */ |
| int megasas_set_crash_dump_params(struct megasas_instance *instance, |
| u8 crash_buf_state) |
| { |
| int ret = 0; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| dev_err(&instance->pdev->dev, "Failed to get a free cmd\n"); |
| return -ENOMEM; |
| } |
| |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| dcmd->mbox.b[0] = crash_buf_state; |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = MFI_STAT_INVALID_STATUS; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(CRASH_DMA_BUF_SIZE); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->crash_dump_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(CRASH_DMA_BUF_SIZE); |
| |
| if (instance->ctrl_context && !instance->mask_interrupts) |
| ret = megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS); |
| else |
| ret = megasas_issue_polled(instance, cmd); |
| |
| if (ret == DCMD_TIMEOUT) { |
| switch (dcmd_timeout_ocr_possible(instance)) { |
| case INITIATE_OCR: |
| cmd->flags |= DRV_DCMD_SKIP_REFIRE; |
| megasas_reset_fusion(instance->host, |
| MFI_IO_TIMEOUT_OCR); |
| break; |
| case KILL_ADAPTER: |
| megaraid_sas_kill_hba(instance); |
| break; |
| case IGNORE_TIMEOUT: |
| dev_info(&instance->pdev->dev, "Ignore DCMD timeout: %s %d\n", |
| __func__, __LINE__); |
| break; |
| } |
| } else |
| megasas_return_cmd(instance, cmd); |
| |
| return ret; |
| } |
| |
| /** |
| * megasas_issue_init_mfi - Initializes the FW |
| * @instance: Adapter soft state |
| * |
| * Issues the INIT MFI cmd |
| */ |
| static int |
| megasas_issue_init_mfi(struct megasas_instance *instance) |
| { |
| __le32 context; |
| struct megasas_cmd *cmd; |
| struct megasas_init_frame *init_frame; |
| struct megasas_init_queue_info *initq_info; |
| dma_addr_t init_frame_h; |
| dma_addr_t initq_info_h; |
| |
| /* |
| * Prepare a init frame. Note the init frame points to queue info |
| * structure. Each frame has SGL allocated after first 64 bytes. For |
| * this frame - since we don't need any SGL - we use SGL's space as |
| * queue info structure |
| * |
| * We will not get a NULL command below. We just created the pool. |
| */ |
| cmd = megasas_get_cmd(instance); |
| |
| init_frame = (struct megasas_init_frame *)cmd->frame; |
| initq_info = (struct megasas_init_queue_info *) |
| ((unsigned long)init_frame + 64); |
| |
| init_frame_h = cmd->frame_phys_addr; |
| initq_info_h = init_frame_h + 64; |
| |
| context = init_frame->context; |
| memset(init_frame, 0, MEGAMFI_FRAME_SIZE); |
| memset(initq_info, 0, sizeof(struct megasas_init_queue_info)); |
| init_frame->context = context; |
| |
| initq_info->reply_queue_entries = cpu_to_le32(instance->max_fw_cmds + 1); |
| initq_info->reply_queue_start_phys_addr_lo = cpu_to_le32(instance->reply_queue_h); |
| |
| initq_info->producer_index_phys_addr_lo = cpu_to_le32(instance->producer_h); |
| initq_info->consumer_index_phys_addr_lo = cpu_to_le32(instance->consumer_h); |
| |
| init_frame->cmd = MFI_CMD_INIT; |
| init_frame->cmd_status = MFI_STAT_INVALID_STATUS; |
| init_frame->queue_info_new_phys_addr_lo = |
| cpu_to_le32(lower_32_bits(initq_info_h)); |
| init_frame->queue_info_new_phys_addr_hi = |
| cpu_to_le32(upper_32_bits(initq_info_h)); |
| |
| init_frame->data_xfer_len = cpu_to_le32(sizeof(struct megasas_init_queue_info)); |
| |
| /* |
| * disable the intr before firing the init frame to FW |
| */ |
| instance->instancet->disable_intr(instance); |
| |
| /* |
| * Issue the init frame in polled mode |
| */ |
| |
| if (megasas_issue_polled(instance, cmd)) { |
| dev_err(&instance->pdev->dev, "Failed to init firmware\n"); |
| megasas_return_cmd(instance, cmd); |
| goto fail_fw_init; |
| } |
| |
| megasas_return_cmd(instance, cmd); |
| |
| return 0; |
| |
| fail_fw_init: |
| return -EINVAL; |
| } |
| |
| static u32 |
| megasas_init_adapter_mfi(struct megasas_instance *instance) |
| { |
| struct megasas_register_set __iomem *reg_set; |
| u32 context_sz; |
| u32 reply_q_sz; |
| |
| reg_set = instance->reg_set; |
| |
| /* |
| * Get various operational parameters from status register |
| */ |
| instance->max_fw_cmds = instance->instancet->read_fw_status_reg(reg_set) & 0x00FFFF; |
| /* |
| * Reduce the max supported cmds by 1. This is to ensure that the |
| * reply_q_sz (1 more than the max cmd that driver may send) |
| * does not exceed max cmds that the FW can support |
| */ |
| instance->max_fw_cmds = instance->max_fw_cmds-1; |
| instance->max_mfi_cmds = instance->max_fw_cmds; |
| instance->max_num_sge = (instance->instancet->read_fw_status_reg(reg_set) & 0xFF0000) >> |
| 0x10; |
| /* |
| * For MFI skinny adapters, MEGASAS_SKINNY_INT_CMDS commands |
| * are reserved for IOCTL + driver's internal DCMDs. |
| */ |
| if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
| (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) { |
| instance->max_scsi_cmds = (instance->max_fw_cmds - |
| MEGASAS_SKINNY_INT_CMDS); |
| sema_init(&instance->ioctl_sem, MEGASAS_SKINNY_INT_CMDS); |
| } else { |
| instance->max_scsi_cmds = (instance->max_fw_cmds - |
| MEGASAS_INT_CMDS); |
| sema_init(&instance->ioctl_sem, (MEGASAS_MFI_IOCTL_CMDS)); |
| } |
| |
| instance->cur_can_queue = instance->max_scsi_cmds; |
| /* |
| * Create a pool of commands |
| */ |
| if (megasas_alloc_cmds(instance)) |
| goto fail_alloc_cmds; |
| |
| /* |
| * Allocate memory for reply queue. Length of reply queue should |
| * be _one_ more than the maximum commands handled by the firmware. |
| * |
| * Note: When FW completes commands, it places corresponding contex |
| * values in this circular reply queue. This circular queue is a fairly |
| * typical producer-consumer queue. FW is the producer (of completed |
| * commands) and the driver is the consumer. |
| */ |
| context_sz = sizeof(u32); |
| reply_q_sz = context_sz * (instance->max_fw_cmds + 1); |
| |
| instance->reply_queue = pci_alloc_consistent(instance->pdev, |
| reply_q_sz, |
| &instance->reply_queue_h); |
| |
| if (!instance->reply_queue) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Out of DMA mem for reply queue\n"); |
| goto fail_reply_queue; |
| } |
| |
| if (megasas_issue_init_mfi(instance)) |
| goto fail_fw_init; |
| |
| if (megasas_get_ctrl_info(instance)) { |
| dev_err(&instance->pdev->dev, "(%d): Could get controller info " |
| "Fail from %s %d\n", instance->unique_id, |
| __func__, __LINE__); |
| goto fail_fw_init; |
| } |
| |
| instance->fw_support_ieee = 0; |
| instance->fw_support_ieee = |
| (instance->instancet->read_fw_status_reg(reg_set) & |
| 0x04000000); |
| |
| dev_notice(&instance->pdev->dev, "megasas_init_mfi: fw_support_ieee=%d", |
| instance->fw_support_ieee); |
| |
| if (instance->fw_support_ieee) |
| instance->flag_ieee = 1; |
| |
| return 0; |
| |
| fail_fw_init: |
| |
| pci_free_consistent(instance->pdev, reply_q_sz, |
| instance->reply_queue, instance->reply_queue_h); |
| fail_reply_queue: |
| megasas_free_cmds(instance); |
| |
| fail_alloc_cmds: |
| return 1; |
| } |
| |
| /* |
| * megasas_setup_irqs_msix - register legacy interrupts. |
| * @instance: Adapter soft state |
| * |
| * Do not enable interrupt, only setup ISRs. |
| * |
| * Return 0 on success. |
| */ |
| static int |
| megasas_setup_irqs_ioapic(struct megasas_instance *instance) |
| { |
| struct pci_dev *pdev; |
| |
| pdev = instance->pdev; |
| instance->irq_context[0].instance = instance; |
| instance->irq_context[0].MSIxIndex = 0; |
| if (request_irq(pdev->irq, instance->instancet->service_isr, |
| IRQF_SHARED, "megasas", &instance->irq_context[0])) { |
| dev_err(&instance->pdev->dev, |
| "Failed to register IRQ from %s %d\n", |
| __func__, __LINE__); |
| return -1; |
| } |
| return 0; |
| } |
| |
| /** |
| * megasas_setup_irqs_msix - register MSI-x interrupts. |
| * @instance: Adapter soft state |
| * @is_probe: Driver probe check |
| * |
| * Do not enable interrupt, only setup ISRs. |
| * |
| * Return 0 on success. |
| */ |
| static int |
| megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) |
| { |
| int i, j, cpu; |
| struct pci_dev *pdev; |
| |
| pdev = instance->pdev; |
| |
| /* Try MSI-x */ |
| cpu = cpumask_first(cpu_online_mask); |
| for (i = 0; i < instance->msix_vectors; i++) { |
| instance->irq_context[i].instance = instance; |
| instance->irq_context[i].MSIxIndex = i; |
| if (request_irq(instance->msixentry[i].vector, |
| instance->instancet->service_isr, 0, "megasas", |
| &instance->irq_context[i])) { |
| dev_err(&instance->pdev->dev, |
| "Failed to register IRQ for vector %d.\n", i); |
| for (j = 0; j < i; j++) { |
| if (smp_affinity_enable) |
| irq_set_affinity_hint( |
| instance->msixentry[j].vector, NULL); |
| free_irq(instance->msixentry[j].vector, |
| &instance->irq_context[j]); |
| } |
| /* Retry irq register for IO_APIC*/ |
| instance->msix_vectors = 0; |
| if (is_probe) |
| return megasas_setup_irqs_ioapic(instance); |
| else |
| return -1; |
| } |
| if (smp_affinity_enable) { |
| if (irq_set_affinity_hint(instance->msixentry[i].vector, |
| get_cpu_mask(cpu))) |
| dev_err(&instance->pdev->dev, |
| "Failed to set affinity hint" |
| " for cpu %d\n", cpu); |
| cpu = cpumask_next(cpu, cpu_online_mask); |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * megasas_destroy_irqs- unregister interrupts. |
| * @instance: Adapter soft state |
| * return: void |
| */ |
| static void |
| megasas_destroy_irqs(struct megasas_instance *instance) { |
| |
| int i; |
| |
| if (instance->msix_vectors) |
| for (i = 0; i < instance->msix_vectors; i++) { |
| if (smp_affinity_enable) |
| irq_set_affinity_hint( |
| instance->msixentry[i].vector, NULL); |
| free_irq(instance->msixentry[i].vector, |
| &instance->irq_context[i]); |
| } |
| else |
| free_irq(instance->pdev->irq, &instance->irq_context[0]); |
| } |
| |
| /** |
| * megasas_setup_jbod_map - setup jbod map for FP seq_number. |
| * @instance: Adapter soft state |
| * @is_probe: Driver probe check |
| * |
| * Return 0 on success. |
| */ |
| void |
| megasas_setup_jbod_map(struct megasas_instance *instance) |
| { |
| int i; |
| struct fusion_context *fusion = instance->ctrl_context; |
| u32 pd_seq_map_sz; |
| |
| pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + |
| (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1)); |
| |
| if (reset_devices || !fusion || |
| !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) { |
| dev_info(&instance->pdev->dev, |
| "Jbod map is not supported %s %d\n", |
| __func__, __LINE__); |
| instance->use_seqnum_jbod_fp = false; |
| return; |
| } |
| |
| if (fusion->pd_seq_sync[0]) |
| goto skip_alloc; |
| |
| for (i = 0; i < JBOD_MAPS_COUNT; i++) { |
| fusion->pd_seq_sync[i] = dma_alloc_coherent |
| (&instance->pdev->dev, pd_seq_map_sz, |
| &fusion->pd_seq_phys[i], GFP_KERNEL); |
| if (!fusion->pd_seq_sync[i]) { |
| dev_err(&instance->pdev->dev, |
| "Failed to allocate memory from %s %d\n", |
| __func__, __LINE__); |
| if (i == 1) { |
| dma_free_coherent(&instance->pdev->dev, |
| pd_seq_map_sz, fusion->pd_seq_sync[0], |
| fusion->pd_seq_phys[0]); |
| fusion->pd_seq_sync[0] = NULL; |
| } |
| instance->use_seqnum_jbod_fp = false; |
| return; |
| } |
| } |
| |
| skip_alloc: |
| if (!megasas_sync_pd_seq_num(instance, false) && |
| !megasas_sync_pd_seq_num(instance, true)) |
| instance->use_seqnum_jbod_fp = true; |
| else |
| instance->use_seqnum_jbod_fp = false; |
| } |
| |
| /** |
| * megasas_init_fw - Initializes the FW |
| * @instance: Adapter soft state |
| * |
| * This is the main function for initializing firmware |
| */ |
| |
| static int megasas_init_fw(struct megasas_instance *instance) |
| { |
| u32 max_sectors_1; |
| u32 max_sectors_2; |
| u32 tmp_sectors, msix_enable, scratch_pad_2; |
| resource_size_t base_addr; |
| struct megasas_register_set __iomem *reg_set; |
| struct megasas_ctrl_info *ctrl_info = NULL; |
| unsigned long bar_list; |
| int i, loop, fw_msix_count = 0; |
| struct IOV_111 *iovPtr; |
| struct fusion_context *fusion; |
| |
| fusion = instance->ctrl_context; |
| |
| /* Find first memory bar */ |
| bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); |
| instance->bar = find_first_bit(&bar_list, sizeof(unsigned long)); |
| if (pci_request_selected_regions(instance->pdev, instance->bar, |
| "megasas: LSI")) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); |
| return -EBUSY; |
| } |
| |
| base_addr = pci_resource_start(instance->pdev, instance->bar); |
| instance->reg_set = ioremap_nocache(base_addr, 8192); |
| |
| if (!instance->reg_set) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to map IO mem\n"); |
| goto fail_ioremap; |
| } |
| |
| reg_set = instance->reg_set; |
| |
| switch (instance->pdev->device) { |
| case PCI_DEVICE_ID_LSI_FUSION: |
| case PCI_DEVICE_ID_LSI_PLASMA: |
| case PCI_DEVICE_ID_LSI_INVADER: |
| case PCI_DEVICE_ID_LSI_FURY: |
| case PCI_DEVICE_ID_LSI_INTRUDER: |
| case PCI_DEVICE_ID_LSI_INTRUDER_24: |
| case PCI_DEVICE_ID_LSI_CUTLASS_52: |
| case PCI_DEVICE_ID_LSI_CUTLASS_53: |
| instance->instancet = &megasas_instance_template_fusion; |
| break; |
| case PCI_DEVICE_ID_LSI_SAS1078R: |
| case PCI_DEVICE_ID_LSI_SAS1078DE: |
| instance->instancet = &megasas_instance_template_ppc; |
| break; |
| case PCI_DEVICE_ID_LSI_SAS1078GEN2: |
| case PCI_DEVICE_ID_LSI_SAS0079GEN2: |
| instance->instancet = &megasas_instance_template_gen2; |
| break; |
| case PCI_DEVICE_ID_LSI_SAS0073SKINNY: |
| case PCI_DEVICE_ID_LSI_SAS0071SKINNY: |
| instance->instancet = &megasas_instance_template_skinny; |
| break; |
| case PCI_DEVICE_ID_LSI_SAS1064R: |
| case PCI_DEVICE_ID_DELL_PERC5: |
| default: |
| instance->instancet = &megasas_instance_template_xscale; |
| break; |
| } |
| |
| if (megasas_transition_to_ready(instance, 0)) { |
| atomic_set(&instance->fw_reset_no_pci_access, 1); |
| instance->instancet->adp_reset |
| (instance, instance->reg_set); |
| atomic_set(&instance->fw_reset_no_pci_access, 0); |
| dev_info(&instance->pdev->dev, |
| "FW restarted successfully from %s!\n", |
| __func__); |
| |
| /*waitting for about 30 second before retry*/ |
| ssleep(30); |
| |
| if (megasas_transition_to_ready(instance, 0)) |
| goto fail_ready_state; |
| } |
| |
| /* |
| * MSI-X host index 0 is common for all adapter. |
| * It is used for all MPT based Adapters. |
| */ |
| instance->reply_post_host_index_addr[0] = |
| (u32 __iomem *)((u8 __iomem *)instance->reg_set + |
| MPI2_REPLY_POST_HOST_INDEX_OFFSET); |
| |
| /* Check if MSI-X is supported while in ready state */ |
| msix_enable = (instance->instancet->read_fw_status_reg(reg_set) & |
| 0x4000000) >> 0x1a; |
| if (msix_enable && !msix_disable) { |
| scratch_pad_2 = readl |
| (&instance->reg_set->outbound_scratch_pad_2); |
| /* Check max MSI-X vectors */ |
| if (fusion) { |
| if (fusion->adapter_type == THUNDERBOLT_SERIES) { /* Thunderbolt Series*/ |
| instance->msix_vectors = (scratch_pad_2 |
| & MR_MAX_REPLY_QUEUES_OFFSET) + 1; |
| fw_msix_count = instance->msix_vectors; |
| } else { /* Invader series supports more than 8 MSI-x vectors*/ |
| instance->msix_vectors = ((scratch_pad_2 |
| & MR_MAX_REPLY_QUEUES_EXT_OFFSET) |
| >> MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT) + 1; |
| if (rdpq_enable) |
| instance->is_rdpq = (scratch_pad_2 & MR_RDPQ_MODE_OFFSET) ? |
| 1 : 0; |
| fw_msix_count = instance->msix_vectors; |
| /* Save 1-15 reply post index address to local memory |
| * Index 0 is already saved from reg offset |
| * MPI2_REPLY_POST_HOST_INDEX_OFFSET |
| */ |
| for (loop = 1; loop < MR_MAX_MSIX_REG_ARRAY; loop++) { |
| instance->reply_post_host_index_addr[loop] = |
| (u32 __iomem *) |
| ((u8 __iomem *)instance->reg_set + |
| MPI2_SUP_REPLY_POST_HOST_INDEX_OFFSET |
| + (loop * 0x10)); |
| } |
| } |
| if (msix_vectors) |
| instance->msix_vectors = min(msix_vectors, |
| instance->msix_vectors); |
| } else /* MFI adapters */ |
| instance->msix_vectors = 1; |
| /* Don't bother allocating more MSI-X vectors than cpus */ |
| instance->msix_vectors = min(instance->msix_vectors, |
| (unsigned int)num_online_cpus()); |
| for (i = 0; i < instance->msix_vectors; i++) |
| instance->msixentry[i].entry = i; |
| i = pci_enable_msix_range(instance->pdev, instance->msixentry, |
| 1, instance->msix_vectors); |
| if (i > 0) |
| instance->msix_vectors = i; |
| else |
| instance->msix_vectors = 0; |
| } |
| |
| dev_info(&instance->pdev->dev, |
| "firmware supports msix\t: (%d)", fw_msix_count); |
| dev_info(&instance->pdev->dev, |
| "current msix/online cpus\t: (%d/%d)\n", |
| instance->msix_vectors, (unsigned int)num_online_cpus()); |
| dev_info(&instance->pdev->dev, |
| "RDPQ mode\t: (%s)\n", instance->is_rdpq ? "enabled" : "disabled"); |
| |
| tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, |
| (unsigned long)instance); |
| |
| if (instance->msix_vectors ? |
| megasas_setup_irqs_msix(instance, 1) : |
| megasas_setup_irqs_ioapic(instance)) |
| goto fail_setup_irqs; |
| |
| instance->ctrl_info = kzalloc(sizeof(struct megasas_ctrl_info), |
| GFP_KERNEL); |
| if (instance->ctrl_info == NULL) |
| goto fail_init_adapter; |
| |
| /* |
| * Below are default value for legacy Firmware. |
| * non-fusion based controllers |
| */ |
| instance->fw_supported_vd_count = MAX_LOGICAL_DRIVES; |
| instance->fw_supported_pd_count = MAX_PHYSICAL_DEVICES; |
| /* Get operational params, sge flags, send init cmd to controller */ |
| if (instance->instancet->init_adapter(instance)) |
| goto fail_init_adapter; |
| |
| |
| instance->instancet->enable_intr(instance); |
| |
| dev_info(&instance->pdev->dev, "INIT adapter done\n"); |
| |
| megasas_setup_jbod_map(instance); |
| |
| /** for passthrough |
| * the following function will get the PD LIST. |
| */ |
| memset(instance->pd_list, 0, |
| (MEGASAS_MAX_PD * sizeof(struct megasas_pd_list))); |
| if (megasas_get_pd_list(instance) < 0) { |
| dev_err(&instance->pdev->dev, "failed to get PD list\n"); |
| goto fail_get_pd_list; |
| } |
| |
| memset(instance->ld_ids, 0xff, MEGASAS_MAX_LD_IDS); |
| if (megasas_ld_list_query(instance, |
| MR_LD_QUERY_TYPE_EXPOSED_TO_HOST)) |
| megasas_get_ld_list(instance); |
| |
| /* |
| * Compute the max allowed sectors per IO: The controller info has two |
| * limits on max sectors. Driver should use the minimum of these two. |
| * |
| * 1 << stripe_sz_ops.min = max sectors per strip |
| * |
| * Note that older firmwares ( < FW ver 30) didn't report information |
| * to calculate max_sectors_1. So the number ended up as zero always. |
| */ |
| tmp_sectors = 0; |
| ctrl_info = instance->ctrl_info; |
| |
| max_sectors_1 = (1 << ctrl_info->stripe_sz_ops.min) * |
| le16_to_cpu(ctrl_info->max_strips_per_io); |
| max_sectors_2 = le32_to_cpu(ctrl_info->max_request_size); |
| |
| tmp_sectors = min_t(u32, max_sectors_1, max_sectors_2); |
| |
| instance->peerIsPresent = ctrl_info->cluster.peerIsPresent; |
| instance->passive = ctrl_info->cluster.passive; |
| memcpy(instance->clusterId, ctrl_info->clusterId, sizeof(instance->clusterId)); |
| instance->UnevenSpanSupport = |
| ctrl_info->adapterOperations2.supportUnevenSpans; |
| if (instance->UnevenSpanSupport) { |
| struct fusion_context *fusion = instance->ctrl_context; |
| if (MR_ValidateMapInfo(instance)) |
| fusion->fast_path_io = 1; |
| else |
| fusion->fast_path_io = 0; |
| |
| } |
| if (ctrl_info->host_interface.SRIOV) { |
| instance->requestorId = ctrl_info->iov.requestorId; |
| if (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA) { |
| if (!ctrl_info->adapterOperations2.activePassive) |
| instance->PlasmaFW111 = 1; |
| |
| dev_info(&instance->pdev->dev, "SR-IOV: firmware type: %s\n", |
| instance->PlasmaFW111 ? "1.11" : "new"); |
| |
| if (instance->PlasmaFW111) { |
| iovPtr = (struct IOV_111 *) |
| ((unsigned char *)ctrl_info + IOV_111_OFFSET); |
| instance->requestorId = iovPtr->requestorId; |
| } |
| } |
| dev_info(&instance->pdev->dev, "SRIOV: VF requestorId %d\n", |
| instance->requestorId); |
| } |
| |
| instance->crash_dump_fw_support = |
| ctrl_info->adapterOperations3.supportCrashDump; |
| instance->crash_dump_drv_support = |
| (instance->crash_dump_fw_support && |
| instance->crash_dump_buf); |
| if (instance->crash_dump_drv_support) |
| megasas_set_crash_dump_params(instance, |
| MR_CRASH_BUF_TURN_OFF); |
| |
| else { |
| if (instance->crash_dump_buf) |
| pci_free_consistent(instance->pdev, |
| CRASH_DMA_BUF_SIZE, |
| instance->crash_dump_buf, |
| instance->crash_dump_h); |
| instance->crash_dump_buf = NULL; |
| } |
| |
| |
| dev_info(&instance->pdev->dev, |
| "pci id\t\t: (0x%04x)/(0x%04x)/(0x%04x)/(0x%04x)\n", |
| le16_to_cpu(ctrl_info->pci.vendor_id), |
| le16_to_cpu(ctrl_info->pci.device_id), |
| le16_to_cpu(ctrl_info->pci.sub_vendor_id), |
| le16_to_cpu(ctrl_info->pci.sub_device_id)); |
| dev_info(&instance->pdev->dev, "unevenspan support : %s\n", |
| instance->UnevenSpanSupport ? "yes" : "no"); |
| dev_info(&instance->pdev->dev, "firmware crash dump : %s\n", |
| instance->crash_dump_drv_support ? "yes" : "no"); |
| dev_info(&instance->pdev->dev, "jbod sync map : %s\n", |
| instance->use_seqnum_jbod_fp ? "yes" : "no"); |
| |
| |
| instance->max_sectors_per_req = instance->max_num_sge * |
| SGE_BUFFER_SIZE / 512; |
| if (tmp_sectors && (instance->max_sectors_per_req > tmp_sectors)) |
| instance->max_sectors_per_req = tmp_sectors; |
| |
| /* Check for valid throttlequeuedepth module parameter */ |
| if (throttlequeuedepth && |
| throttlequeuedepth <= instance->max_scsi_cmds) |
| instance->throttlequeuedepth = throttlequeuedepth; |
| else |
| instance->throttlequeuedepth = |
| MEGASAS_THROTTLE_QUEUE_DEPTH; |
| |
| if (resetwaittime > MEGASAS_RESET_WAIT_TIME) |
| resetwaittime = MEGASAS_RESET_WAIT_TIME; |
| |
| if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) |
| scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; |
| |
| /* Launch SR-IOV heartbeat timer */ |
| if (instance->requestorId) { |
| if (!megasas_sriov_start_heartbeat(instance, 1)) |
| megasas_start_timer(instance, |
| &instance->sriov_heartbeat_timer, |
| megasas_sriov_heartbeat_handler, |
| MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); |
| else |
| instance->skip_heartbeat_timer_del = 1; |
| } |
| |
| return 0; |
| |
| fail_get_pd_list: |
| instance->instancet->disable_intr(instance); |
| fail_init_adapter: |
| megasas_destroy_irqs(instance); |
| fail_setup_irqs: |
| if (instance->msix_vectors) |
| pci_disable_msix(instance->pdev); |
| instance->msix_vectors = 0; |
| fail_ready_state: |
| kfree(instance->ctrl_info); |
| instance->ctrl_info = NULL; |
| iounmap(instance->reg_set); |
| |
| fail_ioremap: |
| pci_release_selected_regions(instance->pdev, instance->bar); |
| |
| return -EINVAL; |
| } |
| |
| /** |
| * megasas_release_mfi - Reverses the FW initialization |
| * @instance: Adapter soft state |
| */ |
| static void megasas_release_mfi(struct megasas_instance *instance) |
| { |
| u32 reply_q_sz = sizeof(u32) *(instance->max_mfi_cmds + 1); |
| |
| if (instance->reply_queue) |
| pci_free_consistent(instance->pdev, reply_q_sz, |
| instance->reply_queue, instance->reply_queue_h); |
| |
| megasas_free_cmds(instance); |
| |
| iounmap(instance->reg_set); |
| |
| pci_release_selected_regions(instance->pdev, instance->bar); |
| } |
| |
| /** |
| * megasas_get_seq_num - Gets latest event sequence numbers |
| * @instance: Adapter soft state |
| * @eli: FW event log sequence numbers information |
| * |
| * FW maintains a log of all events in a non-volatile area. Upper layers would |
| * usually find out the latest sequence number of the events, the seq number at |
| * the boot etc. They would "read" all the events below the latest seq number |
| * by issuing a direct fw cmd (DCMD). For the future events (beyond latest seq |
| * number), they would subsribe to AEN (asynchronous event notification) and |
| * wait for the events to happen. |
| */ |
| static int |
| megasas_get_seq_num(struct megasas_instance *instance, |
| struct megasas_evt_log_info *eli) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| struct megasas_evt_log_info *el_info; |
| dma_addr_t el_info_h = 0; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) { |
| return -ENOMEM; |
| } |
| |
| dcmd = &cmd->frame->dcmd; |
| el_info = pci_alloc_consistent(instance->pdev, |
| sizeof(struct megasas_evt_log_info), |
| &el_info_h); |
| |
| if (!el_info) { |
| megasas_return_cmd(instance, cmd); |
| return -ENOMEM; |
| } |
| |
| memset(el_info, 0, sizeof(*el_info)); |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = 0x0; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_log_info)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_GET_INFO); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(el_info_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_log_info)); |
| |
| if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) == |
| DCMD_SUCCESS) { |
| /* |
| * Copy the data back into callers buffer |
| */ |
| eli->newest_seq_num = el_info->newest_seq_num; |
| eli->oldest_seq_num = el_info->oldest_seq_num; |
| eli->clear_seq_num = el_info->clear_seq_num; |
| eli->shutdown_seq_num = el_info->shutdown_seq_num; |
| eli->boot_seq_num = el_info->boot_seq_num; |
| } else |
| dev_err(&instance->pdev->dev, "DCMD failed " |
| "from %s\n", __func__); |
| |
| pci_free_consistent(instance->pdev, sizeof(struct megasas_evt_log_info), |
| el_info, el_info_h); |
| |
| megasas_return_cmd(instance, cmd); |
| |
| return 0; |
| } |
| |
| /** |
| * megasas_register_aen - Registers for asynchronous event notification |
| * @instance: Adapter soft state |
| * @seq_num: The starting sequence number |
| * @class_locale: Class of the event |
| * |
| * This function subscribes for AEN for events beyond the @seq_num. It requests |
| * to be notified if and only if the event is of type @class_locale |
| */ |
| static int |
| megasas_register_aen(struct megasas_instance *instance, u32 seq_num, |
| u32 class_locale_word) |
| { |
| int ret_val; |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| union megasas_evt_class_locale curr_aen; |
| union megasas_evt_class_locale prev_aen; |
| |
| /* |
| * If there an AEN pending already (aen_cmd), check if the |
| * class_locale of that pending AEN is inclusive of the new |
| * AEN request we currently have. If it is, then we don't have |
| * to do anything. In other words, whichever events the current |
| * AEN request is subscribing to, have already been subscribed |
| * to. |
| * |
| * If the old_cmd is _not_ inclusive, then we have to abort |
| * that command, form a class_locale that is superset of both |
| * old and current and re-issue to the FW |
| */ |
| |
| curr_aen.word = class_locale_word; |
| |
| if (instance->aen_cmd) { |
| |
| prev_aen.word = |
| le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]); |
| |
| /* |
| * A class whose enum value is smaller is inclusive of all |
| * higher values. If a PROGRESS (= -1) was previously |
| * registered, then a new registration requests for higher |
| * classes need not be sent to FW. They are automatically |
| * included. |
| * |
| * Locale numbers don't have such hierarchy. They are bitmap |
| * values |
| */ |
| if ((prev_aen.members.class <= curr_aen.members.class) && |
| !((prev_aen.members.locale & curr_aen.members.locale) ^ |
| curr_aen.members.locale)) { |
| /* |
| * Previously issued event registration includes |
| * current request. Nothing to do. |
| */ |
| return 0; |
| } else { |
| curr_aen.members.locale |= prev_aen.members.locale; |
| |
| if (prev_aen.members.class < curr_aen.members.class) |
| curr_aen.members.class = prev_aen.members.class; |
| |
| instance->aen_cmd->abort_aen = 1; |
| ret_val = megasas_issue_blocked_abort_cmd(instance, |
| instance-> |
| aen_cmd, 30); |
| |
| if (ret_val) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to abort " |
| "previous AEN command\n"); |
| return ret_val; |
| } |
| } |
| } |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) |
| return -ENOMEM; |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| memset(instance->evt_detail, 0, sizeof(struct megasas_evt_detail)); |
| |
| /* |
| * Prepare DCMD for aen registration |
| */ |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = 0x0; |
| dcmd->sge_count = 1; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = cpu_to_le32(sizeof(struct megasas_evt_detail)); |
| dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_EVENT_WAIT); |
| dcmd->mbox.w[0] = cpu_to_le32(seq_num); |
| instance->last_seq_num = seq_num; |
| dcmd->mbox.w[1] = cpu_to_le32(curr_aen.word); |
| dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(instance->evt_detail_h); |
| dcmd->sgl.sge32[0].length = cpu_to_le32(sizeof(struct megasas_evt_detail)); |
| |
| if (instance->aen_cmd != NULL) { |
| megasas_return_cmd(instance, cmd); |
| return 0; |
| } |
| |
| /* |
| * Store reference to the cmd used to register for AEN. When an |
| * application wants us to register for AEN, we have to abort this |
| * cmd and re-register with a new EVENT LOCALE supplied by that app |
| */ |
| instance->aen_cmd = cmd; |
| |
| /* |
| * Issue the aen registration frame |
| */ |
| instance->instancet->issue_dcmd(instance, cmd); |
| |
| return 0; |
| } |
| |
| /** |
| * megasas_start_aen - Subscribes to AEN during driver load time |
| * @instance: Adapter soft state |
| */ |
| static int megasas_start_aen(struct megasas_instance *instance) |
| { |
| struct megasas_evt_log_info eli; |
| union megasas_evt_class_locale class_locale; |
| |
| /* |
| * Get the latest sequence number from FW |
| */ |
| memset(&eli, 0, sizeof(eli)); |
| |
| if (megasas_get_seq_num(instance, &eli)) |
| return -1; |
| |
| /* |
| * Register AEN with FW for latest sequence number plus 1 |
| */ |
| class_locale.members.reserved = 0; |
| class_locale.members.locale = MR_EVT_LOCALE_ALL; |
| class_locale.members.class = MR_EVT_CLASS_DEBUG; |
| |
| return megasas_register_aen(instance, |
| le32_to_cpu(eli.newest_seq_num) + 1, |
| class_locale.word); |
| } |
| |
| /** |
| * megasas_io_attach - Attaches this driver to SCSI mid-layer |
| * @instance: Adapter soft state |
| */ |
| static int megasas_io_attach(struct megasas_instance *instance) |
| { |
| struct Scsi_Host *host = instance->host; |
| |
| /* |
| * Export parameters required by SCSI mid-layer |
| */ |
| host->irq = instance->pdev->irq; |
| host->unique_id = instance->unique_id; |
| host->can_queue = instance->max_scsi_cmds; |
| host->this_id = instance->init_id; |
| host->sg_tablesize = instance->max_num_sge; |
| |
| if (instance->fw_support_ieee) |
| instance->max_sectors_per_req = MEGASAS_MAX_SECTORS_IEEE; |
| |
| /* |
| * Check if the module parameter value for max_sectors can be used |
| */ |
| if (max_sectors && max_sectors < instance->max_sectors_per_req) |
| instance->max_sectors_per_req = max_sectors; |
| else { |
| if (max_sectors) { |
| if (((instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS1078GEN2) || |
| (instance->pdev->device == |
| PCI_DEVICE_ID_LSI_SAS0079GEN2)) && |
| (max_sectors <= MEGASAS_MAX_SECTORS)) { |
| instance->max_sectors_per_req = max_sectors; |
| } else { |
| dev_info(&instance->pdev->dev, "max_sectors should be > 0" |
| "and <= %d (or < 1MB for GEN2 controller)\n", |
| instance->max_sectors_per_req); |
| } |
| } |
| } |
| |
| host->max_sectors = instance->max_sectors_per_req; |
| host->cmd_per_lun = MEGASAS_DEFAULT_CMD_PER_LUN; |
| host->max_channel = MEGASAS_MAX_CHANNELS - 1; |
| host->max_id = MEGASAS_MAX_DEV_PER_CHANNEL; |
| host->max_lun = MEGASAS_MAX_LUN; |
| host->max_cmd_len = 16; |
| |
| /* |
| * Notify the mid-layer about the new controller |
| */ |
| if (scsi_add_host(host, &instance->pdev->dev)) { |
| dev_err(&instance->pdev->dev, |
| "Failed to add host from %s %d\n", |
| __func__, __LINE__); |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| megasas_set_dma_mask(struct pci_dev *pdev) |
| { |
| /* |
| * All our controllers are capable of performing 64-bit DMA |
| */ |
| if (IS_DMA64) { |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) { |
| |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
| goto fail_set_dma_mask; |
| } |
| } else { |
| if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) |
| goto fail_set_dma_mask; |
| } |
| /* |
| * Ensure that all data structures are allocated in 32-bit |
| * memory. |
| */ |
| if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) { |
| /* Try 32bit DMA mask and 32 bit Consistent dma mask */ |
| if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) |
| && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) |
| dev_info(&pdev->dev, "set 32bit DMA mask" |
| "and 32 bit consistent mask\n"); |
| else |
| goto fail_set_dma_mask; |
| } |
| |
| return 0; |
| |
| fail_set_dma_mask: |
| return 1; |
| } |
| |
| /** |
| * megasas_probe_one - PCI hotplug entry point |
| * @pdev: PCI device structure |
| * @id: PCI ids of supported hotplugged adapter |
| */ |
| static int megasas_probe_one(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| int rval, pos; |
| struct Scsi_Host *host; |
| struct megasas_instance *instance; |
| u16 control = 0; |
| struct fusion_context *fusion = NULL; |
| |
| /* Reset MSI-X in the kdump kernel */ |
| if (reset_devices) { |
| pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); |
| if (pos) { |
| pci_read_config_word(pdev, pos + PCI_MSIX_FLAGS, |
| &control); |
| if (control & PCI_MSIX_FLAGS_ENABLE) { |
| dev_info(&pdev->dev, "resetting MSI-X\n"); |
| pci_write_config_word(pdev, |
| pos + PCI_MSIX_FLAGS, |
| control & |
| ~PCI_MSIX_FLAGS_ENABLE); |
| } |
| } |
| } |
| |
| /* |
| * PCI prepping: enable device set bus mastering and dma mask |
| */ |
| rval = pci_enable_device_mem(pdev); |
| |
| if (rval) { |
| return rval; |
| } |
| |
| pci_set_master(pdev); |
| |
| if (megasas_set_dma_mask(pdev)) |
| goto fail_set_dma_mask; |
| |
| host = scsi_host_alloc(&megasas_template, |
| sizeof(struct megasas_instance)); |
| |
| if (!host) { |
| dev_printk(KERN_DEBUG, &pdev->dev, "scsi_host_alloc failed\n"); |
| goto fail_alloc_instance; |
| } |
| |
| instance = (struct megasas_instance *)host->hostdata; |
| memset(instance, 0, sizeof(*instance)); |
| atomic_set(&instance->fw_reset_no_pci_access, 0); |
| instance->pdev = pdev; |
| |
| switch (instance->pdev->device) { |
| case PCI_DEVICE_ID_LSI_FUSION: |
| case PCI_DEVICE_ID_LSI_PLASMA: |
| case PCI_DEVICE_ID_LSI_INVADER: |
| case PCI_DEVICE_ID_LSI_FURY: |
| case PCI_DEVICE_ID_LSI_INTRUDER: |
| case PCI_DEVICE_ID_LSI_INTRUDER_24: |
| case PCI_DEVICE_ID_LSI_CUTLASS_52: |
| case PCI_DEVICE_ID_LSI_CUTLASS_53: |
| { |
| instance->ctrl_context_pages = |
| get_order(sizeof(struct fusion_context)); |
| instance->ctrl_context = (void *)__get_free_pages(GFP_KERNEL, |
| instance->ctrl_context_pages); |
| if (!instance->ctrl_context) { |
| dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate " |
| "memory for Fusion context info\n"); |
| goto fail_alloc_dma_buf; |
| } |
| fusion = instance->ctrl_context; |
| memset(fusion, 0, |
| ((1 << PAGE_SHIFT) << instance->ctrl_context_pages)); |
| if ((instance->pdev->device == PCI_DEVICE_ID_LSI_FUSION) || |
| (instance->pdev->device == PCI_DEVICE_ID_LSI_PLASMA)) |
| fusion->adapter_type = THUNDERBOLT_SERIES; |
| else |
| fusion->adapter_type = INVADER_SERIES; |
| } |
| break; |
| default: /* For all other supported controllers */ |
| |
| instance->producer = |
| pci_alloc_consistent(pdev, sizeof(u32), |
| &instance->producer_h); |
| instance->consumer = |
| pci_alloc_consistent(pdev, sizeof(u32), |
| &instance->consumer_h); |
| |
| if (!instance->producer || !instance->consumer) { |
| dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate" |
| "memory for producer, consumer\n"); |
| goto fail_alloc_dma_buf; |
| } |
| |
| *instance->producer = 0; |
| *instance->consumer = 0; |
| break; |
| } |
| |
| /* Crash dump feature related initialisation*/ |
| instance->drv_buf_index = 0; |
| instance->drv_buf_alloc = 0; |
| instance->crash_dump_fw_support = 0; |
| instance->crash_dump_app_support = 0; |
| instance->fw_crash_state = UNAVAILABLE; |
| spin_lock_init(&instance->crashdump_lock); |
| instance->crash_dump_buf = NULL; |
| |
| megasas_poll_wait_aen = 0; |
| instance->flag_ieee = 0; |
| instance->ev = NULL; |
| instance->issuepend_done = 1; |
| atomic_set(&instance->adprecovery, MEGASAS_HBA_OPERATIONAL); |
| instance->is_imr = 0; |
| |
| instance->evt_detail = pci_alloc_consistent(pdev, |
| sizeof(struct |
| megasas_evt_detail), |
| &instance->evt_detail_h); |
| |
| if (!instance->evt_detail) { |
| dev_printk(KERN_DEBUG, &pdev->dev, "Failed to allocate memory for " |
| "event detail structure\n"); |
| goto fail_alloc_dma_buf; |
| } |
| |
| if (!reset_devices) { |
| instance->system_info_buf = pci_zalloc_consistent(pdev, |
| sizeof(struct MR_DRV_SYSTEM_INFO), |
| &instance->system_info_h); |
| if (!instance->system_info_buf) |
| dev_info(&instance->pdev->dev, "Can't allocate system info buffer\n"); |
| |
| instance->pd_info = pci_alloc_consistent(pdev, |
| sizeof(struct MR_PD_INFO), &instance->pd_info_h); |
| |
| if (!instance->pd_info) |
| dev_err(&instance->pdev->dev, "Failed to alloc mem for pd_info\n"); |
| |
| instance->crash_dump_buf = pci_alloc_consistent(pdev, |
| CRASH_DMA_BUF_SIZE, |
| &instance->crash_dump_h); |
| if (!instance->crash_dump_buf) |
| dev_err(&pdev->dev, "Can't allocate Firmware " |
| "crash dump DMA buffer\n"); |
| } |
| |
| /* |
| * Initialize locks and queues |
| */ |
| INIT_LIST_HEAD(&instance->cmd_pool); |
| INIT_LIST_HEAD(&instance->internal_reset_pending_q); |
| |
| atomic_set(&instance->fw_outstanding,0); |
| |
| init_waitqueue_head(&instance->int_cmd_wait_q); |
| init_waitqueue_head(&instance->abort_cmd_wait_q); |
| |
| spin_lock_init(&instance->mfi_pool_lock); |
| spin_lock_init(&instance->hba_lock); |
| spin_lock_init(&instance->completion_lock); |
| |
| mutex_init(&instance->reset_mutex); |
| mutex_init(&instance->hba_mutex); |
| |
| /* |
| * Initialize PCI related and misc parameters |
| */ |
| instance->host = host; |
| instance->unique_id = pdev->bus->number << 8 | pdev->devfn; |
| instance->init_id = MEGASAS_DEFAULT_INIT_ID; |
| instance->ctrl_info = NULL; |
| |
| |
| if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY) || |
| (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY)) |
| instance->flag_ieee = 1; |
| |
| megasas_dbg_lvl = 0; |
| instance->flag = 0; |
| instance->unload = 1; |
| instance->last_time = 0; |
| instance->disableOnlineCtrlReset = 1; |
| instance->UnevenSpanSupport = 0; |
| |
| if (instance->ctrl_context) { |
| INIT_WORK(&instance->work_init, megasas_fusion_ocr_wq); |
| INIT_WORK(&instance->crash_init, megasas_fusion_crash_dump_wq); |
| } else |
| INIT_WORK(&instance->work_init, process_fw_state_change_wq); |
| |
| /* |
| * Initialize MFI Firmware |
| */ |
| if (megasas_init_fw(instance)) |
| goto fail_init_mfi; |
| |
| if (instance->requestorId) { |
| if (instance->PlasmaFW111) { |
| instance->vf_affiliation_111 = |
| pci_alloc_consistent(pdev, sizeof(struct MR_LD_VF_AFFILIATION_111), |
| &instance->vf_affiliation_111_h); |
| if (!instance->vf_affiliation_111) |
| dev_warn(&pdev->dev, "Can't allocate " |
| "memory for VF affiliation buffer\n"); |
| } else { |
| instance->vf_affiliation = |
| pci_alloc_consistent(pdev, |
| (MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION), |
| &instance->vf_affiliation_h); |
| if (!instance->vf_affiliation) |
| dev_warn(&pdev->dev, "Can't allocate " |
| "memory for VF affiliation buffer\n"); |
| } |
| } |
| |
| /* |
| * Store instance in PCI softstate |
| */ |
| pci_set_drvdata(pdev, instance); |
| |
| /* |
| * Add this controller to megasas_mgmt_info structure so that it |
| * can be exported to management applications |
| */ |
| megasas_mgmt_info.count++; |
| megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = instance; |
| megasas_mgmt_info.max_index++; |
| |
| /* |
| * Register with SCSI mid-layer |
| */ |
| if (megasas_io_attach(instance)) |
| goto fail_io_attach; |
| |
| instance->unload = 0; |
| /* |
| * Trigger SCSI to scan our drives |
| */ |
| scsi_scan_host(host); |
| |
| /* |
| * Initiate AEN (Asynchronous Event Notification) |
| */ |
| if (megasas_start_aen(instance)) { |
| dev_printk(KERN_DEBUG, &pdev->dev, "start aen failed\n"); |
| goto fail_start_aen; |
| } |
| |
| /* Get current SR-IOV LD/VF affiliation */ |
| if (instance->requestorId) |
| megasas_get_ld_vf_affiliation(instance, 1); |
| |
| return 0; |
| |
| fail_start_aen: |
| fail_io_attach: |
| megasas_mgmt_info.count--; |
| megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL; |
| megasas_mgmt_info.max_index--; |
| |
| instance->instancet->disable_intr(instance); |
| megasas_destroy_irqs(instance); |
| |
| if (instance->ctrl_context) |
| megasas_release_fusion(instance); |
| else |
| megasas_release_mfi(instance); |
| if (instance->msix_vectors) |
| pci_disable_msix(instance->pdev); |
| fail_init_mfi: |
| fail_alloc_dma_buf: |
| if (instance->evt_detail) |
| pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), |
| instance->evt_detail, |
| instance->evt_detail_h); |
| |
| if (instance->pd_info) |
| pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), |
| instance->pd_info, |
| instance->pd_info_h); |
| if (instance->producer) |
| pci_free_consistent(pdev, sizeof(u32), instance->producer, |
| instance->producer_h); |
| if (instance->consumer) |
| pci_free_consistent(pdev, sizeof(u32), instance->consumer, |
| instance->consumer_h); |
| scsi_host_put(host); |
| |
| fail_alloc_instance: |
| fail_set_dma_mask: |
| pci_disable_device(pdev); |
| |
| return -ENODEV; |
| } |
| |
| /** |
| * megasas_flush_cache - Requests FW to flush all its caches |
| * @instance: Adapter soft state |
| */ |
| static void megasas_flush_cache(struct megasas_instance *instance) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) |
| return; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) |
| return; |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = 0x0; |
| dcmd->sge_count = 0; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = 0; |
| dcmd->opcode = cpu_to_le32(MR_DCMD_CTRL_CACHE_FLUSH); |
| dcmd->mbox.b[0] = MR_FLUSH_CTRL_CACHE | MR_FLUSH_DISK_CACHE; |
| |
| if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) |
| != DCMD_SUCCESS) { |
| dev_err(&instance->pdev->dev, |
| "return from %s %d\n", __func__, __LINE__); |
| return; |
| } |
| |
| megasas_return_cmd(instance, cmd); |
| } |
| |
| /** |
| * megasas_shutdown_controller - Instructs FW to shutdown the controller |
| * @instance: Adapter soft state |
| * @opcode: Shutdown/Hibernate |
| */ |
| static void megasas_shutdown_controller(struct megasas_instance *instance, |
| u32 opcode) |
| { |
| struct megasas_cmd *cmd; |
| struct megasas_dcmd_frame *dcmd; |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) |
| return; |
| |
| cmd = megasas_get_cmd(instance); |
| |
| if (!cmd) |
| return; |
| |
| if (instance->aen_cmd) |
| megasas_issue_blocked_abort_cmd(instance, |
| instance->aen_cmd, MFI_IO_TIMEOUT_SECS); |
| if (instance->map_update_cmd) |
| megasas_issue_blocked_abort_cmd(instance, |
| instance->map_update_cmd, MFI_IO_TIMEOUT_SECS); |
| if (instance->jbod_seq_cmd) |
| megasas_issue_blocked_abort_cmd(instance, |
| instance->jbod_seq_cmd, MFI_IO_TIMEOUT_SECS); |
| |
| dcmd = &cmd->frame->dcmd; |
| |
| memset(dcmd->mbox.b, 0, MFI_MBOX_SIZE); |
| |
| dcmd->cmd = MFI_CMD_DCMD; |
| dcmd->cmd_status = 0x0; |
| dcmd->sge_count = 0; |
| dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_NONE); |
| dcmd->timeout = 0; |
| dcmd->pad_0 = 0; |
| dcmd->data_xfer_len = 0; |
| dcmd->opcode = cpu_to_le32(opcode); |
| |
| if (megasas_issue_blocked_cmd(instance, cmd, MFI_IO_TIMEOUT_SECS) |
| != DCMD_SUCCESS) { |
| dev_err(&instance->pdev->dev, |
| "return from %s %d\n", __func__, __LINE__); |
| return; |
| } |
| |
| megasas_return_cmd(instance, cmd); |
| } |
| |
| #ifdef CONFIG_PM |
| /** |
| * megasas_suspend - driver suspend entry point |
| * @pdev: PCI device structure |
| * @state: PCI power state to suspend routine |
| */ |
| static int |
| megasas_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct Scsi_Host *host; |
| struct megasas_instance *instance; |
| |
| instance = pci_get_drvdata(pdev); |
| host = instance->host; |
| instance->unload = 1; |
| |
| /* Shutdown SR-IOV heartbeat timer */ |
| if (instance->requestorId && !instance->skip_heartbeat_timer_del) |
| del_timer_sync(&instance->sriov_heartbeat_timer); |
| |
| megasas_flush_cache(instance); |
| megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); |
| |
| /* cancel the delayed work if this work still in queue */ |
| if (instance->ev != NULL) { |
| struct megasas_aen_event *ev = instance->ev; |
| cancel_delayed_work_sync(&ev->hotplug_work); |
| instance->ev = NULL; |
| } |
| |
| tasklet_kill(&instance->isr_tasklet); |
| |
| pci_set_drvdata(instance->pdev, instance); |
| instance->instancet->disable_intr(instance); |
| |
| megasas_destroy_irqs(instance); |
| |
| if (instance->msix_vectors) |
| pci_disable_msix(instance->pdev); |
| |
| pci_save_state(pdev); |
| pci_disable_device(pdev); |
| |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| |
| return 0; |
| } |
| |
| /** |
| * megasas_resume- driver resume entry point |
| * @pdev: PCI device structure |
| */ |
| static int |
| megasas_resume(struct pci_dev *pdev) |
| { |
| int rval; |
| struct Scsi_Host *host; |
| struct megasas_instance *instance; |
| |
| instance = pci_get_drvdata(pdev); |
| host = instance->host; |
| pci_set_power_state(pdev, PCI_D0); |
| pci_enable_wake(pdev, PCI_D0, 0); |
| pci_restore_state(pdev); |
| |
| /* |
| * PCI prepping: enable device set bus mastering and dma mask |
| */ |
| rval = pci_enable_device_mem(pdev); |
| |
| if (rval) { |
| dev_err(&pdev->dev, "Enable device failed\n"); |
| return rval; |
| } |
| |
| pci_set_master(pdev); |
| |
| if (megasas_set_dma_mask(pdev)) |
| goto fail_set_dma_mask; |
| |
| /* |
| * Initialize MFI Firmware |
| */ |
| |
| atomic_set(&instance->fw_outstanding, 0); |
| |
| /* |
| * We expect the FW state to be READY |
| */ |
| if (megasas_transition_to_ready(instance, 0)) |
| goto fail_ready_state; |
| |
| /* Now re-enable MSI-X */ |
| if (instance->msix_vectors && |
| pci_enable_msix_exact(instance->pdev, instance->msixentry, |
| instance->msix_vectors)) |
| goto fail_reenable_msix; |
| |
| if (instance->ctrl_context) { |
| megasas_reset_reply_desc(instance); |
| if (megasas_ioc_init_fusion(instance)) { |
| megasas_free_cmds(instance); |
| megasas_free_cmds_fusion(instance); |
| goto fail_init_mfi; |
| } |
| if (!megasas_get_map_info(instance)) |
| megasas_sync_map_info(instance); |
| } else { |
| *instance->producer = 0; |
| *instance->consumer = 0; |
| if (megasas_issue_init_mfi(instance)) |
| goto fail_init_mfi; |
| } |
| |
| tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet, |
| (unsigned long)instance); |
| |
| if (instance->msix_vectors ? |
| megasas_setup_irqs_msix(instance, 0) : |
| megasas_setup_irqs_ioapic(instance)) |
| goto fail_init_mfi; |
| |
| /* Re-launch SR-IOV heartbeat timer */ |
| if (instance->requestorId) { |
| if (!megasas_sriov_start_heartbeat(instance, 0)) |
| megasas_start_timer(instance, |
| &instance->sriov_heartbeat_timer, |
| megasas_sriov_heartbeat_handler, |
| MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF); |
| else { |
| instance->skip_heartbeat_timer_del = 1; |
| goto fail_init_mfi; |
| } |
| } |
| |
| instance->instancet->enable_intr(instance); |
| megasas_setup_jbod_map(instance); |
| instance->unload = 0; |
| |
| /* |
| * Initiate AEN (Asynchronous Event Notification) |
| */ |
| if (megasas_start_aen(instance)) |
| dev_err(&instance->pdev->dev, "Start AEN failed\n"); |
| |
| return 0; |
| |
| fail_init_mfi: |
| if (instance->evt_detail) |
| pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), |
| instance->evt_detail, |
| instance->evt_detail_h); |
| |
| if (instance->pd_info) |
| pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), |
| instance->pd_info, |
| instance->pd_info_h); |
| if (instance->producer) |
| pci_free_consistent(pdev, sizeof(u32), instance->producer, |
| instance->producer_h); |
| if (instance->consumer) |
| pci_free_consistent(pdev, sizeof(u32), instance->consumer, |
| instance->consumer_h); |
| scsi_host_put(host); |
| |
| fail_set_dma_mask: |
| fail_ready_state: |
| fail_reenable_msix: |
| |
| pci_disable_device(pdev); |
| |
| return -ENODEV; |
| } |
| #else |
| #define megasas_suspend NULL |
| #define megasas_resume NULL |
| #endif |
| |
| /** |
| * megasas_detach_one - PCI hot"un"plug entry point |
| * @pdev: PCI device structure |
| */ |
| static void megasas_detach_one(struct pci_dev *pdev) |
| { |
| int i; |
| struct Scsi_Host *host; |
| struct megasas_instance *instance; |
| struct fusion_context *fusion; |
| u32 pd_seq_map_sz; |
| |
| instance = pci_get_drvdata(pdev); |
| instance->unload = 1; |
| host = instance->host; |
| fusion = instance->ctrl_context; |
| |
| /* Shutdown SR-IOV heartbeat timer */ |
| if (instance->requestorId && !instance->skip_heartbeat_timer_del) |
| del_timer_sync(&instance->sriov_heartbeat_timer); |
| |
| if (instance->fw_crash_state != UNAVAILABLE) |
| megasas_free_host_crash_buffer(instance); |
| scsi_remove_host(instance->host); |
| megasas_flush_cache(instance); |
| megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); |
| |
| /* cancel the delayed work if this work still in queue*/ |
| if (instance->ev != NULL) { |
| struct megasas_aen_event *ev = instance->ev; |
| cancel_delayed_work_sync(&ev->hotplug_work); |
| instance->ev = NULL; |
| } |
| |
| /* cancel all wait events */ |
| wake_up_all(&instance->int_cmd_wait_q); |
| |
| tasklet_kill(&instance->isr_tasklet); |
| |
| /* |
| * Take the instance off the instance array. Note that we will not |
| * decrement the max_index. We let this array be sparse array |
| */ |
| for (i = 0; i < megasas_mgmt_info.max_index; i++) { |
| if (megasas_mgmt_info.instance[i] == instance) { |
| megasas_mgmt_info.count--; |
| megasas_mgmt_info.instance[i] = NULL; |
| |
| break; |
| } |
| } |
| |
| instance->instancet->disable_intr(instance); |
| |
| megasas_destroy_irqs(instance); |
| |
| if (instance->msix_vectors) |
| pci_disable_msix(instance->pdev); |
| |
| if (instance->ctrl_context) { |
| megasas_release_fusion(instance); |
| pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) + |
| (sizeof(struct MR_PD_CFG_SEQ) * |
| (MAX_PHYSICAL_DEVICES - 1)); |
| for (i = 0; i < 2 ; i++) { |
| if (fusion->ld_map[i]) |
| dma_free_coherent(&instance->pdev->dev, |
| fusion->max_map_sz, |
| fusion->ld_map[i], |
| fusion->ld_map_phys[i]); |
| if (fusion->ld_drv_map[i]) |
| free_pages((ulong)fusion->ld_drv_map[i], |
| fusion->drv_map_pages); |
| if (fusion->pd_seq_sync[i]) |
| dma_free_coherent(&instance->pdev->dev, |
| pd_seq_map_sz, |
| fusion->pd_seq_sync[i], |
| fusion->pd_seq_phys[i]); |
| } |
| free_pages((ulong)instance->ctrl_context, |
| instance->ctrl_context_pages); |
| } else { |
| megasas_release_mfi(instance); |
| pci_free_consistent(pdev, sizeof(u32), |
| instance->producer, |
| instance->producer_h); |
| pci_free_consistent(pdev, sizeof(u32), |
| instance->consumer, |
| instance->consumer_h); |
| } |
| |
| kfree(instance->ctrl_info); |
| |
| if (instance->evt_detail) |
| pci_free_consistent(pdev, sizeof(struct megasas_evt_detail), |
| instance->evt_detail, instance->evt_detail_h); |
| |
| if (instance->pd_info) |
| pci_free_consistent(pdev, sizeof(struct MR_PD_INFO), |
| instance->pd_info, |
| instance->pd_info_h); |
| if (instance->vf_affiliation) |
| pci_free_consistent(pdev, (MAX_LOGICAL_DRIVES + 1) * |
| sizeof(struct MR_LD_VF_AFFILIATION), |
| instance->vf_affiliation, |
| instance->vf_affiliation_h); |
| |
| if (instance->vf_affiliation_111) |
| pci_free_consistent(pdev, |
| sizeof(struct MR_LD_VF_AFFILIATION_111), |
| instance->vf_affiliation_111, |
| instance->vf_affiliation_111_h); |
| |
| if (instance->hb_host_mem) |
| pci_free_consistent(pdev, sizeof(struct MR_CTRL_HB_HOST_MEM), |
| instance->hb_host_mem, |
| instance->hb_host_mem_h); |
| |
| if (instance->crash_dump_buf) |
| pci_free_consistent(pdev, CRASH_DMA_BUF_SIZE, |
| instance->crash_dump_buf, instance->crash_dump_h); |
| |
| if (instance->system_info_buf) |
| pci_free_consistent(pdev, sizeof(struct MR_DRV_SYSTEM_INFO), |
| instance->system_info_buf, instance->system_info_h); |
| |
| scsi_host_put(host); |
| |
| pci_disable_device(pdev); |
| } |
| |
| /** |
| * megasas_shutdown - Shutdown entry point |
| * @device: Generic device structure |
| */ |
| static void megasas_shutdown(struct pci_dev *pdev) |
| { |
| struct megasas_instance *instance = pci_get_drvdata(pdev); |
| |
| instance->unload = 1; |
| megasas_flush_cache(instance); |
| megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); |
| instance->instancet->disable_intr(instance); |
| megasas_destroy_irqs(instance); |
| |
| if (instance->msix_vectors) |
| pci_disable_msix(instance->pdev); |
| } |
| |
| /** |
| * megasas_mgmt_open - char node "open" entry point |
| */ |
| static int megasas_mgmt_open(struct inode *inode, struct file *filep) |
| { |
| /* |
| * Allow only those users with admin rights |
| */ |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| return 0; |
| } |
| |
| /** |
| * megasas_mgmt_fasync - Async notifier registration from applications |
| * |
| * This function adds the calling process to a driver global queue. When an |
| * event occurs, SIGIO will be sent to all processes in this queue. |
| */ |
| static int megasas_mgmt_fasync(int fd, struct file *filep, int mode) |
| { |
| int rc; |
| |
| mutex_lock(&megasas_async_queue_mutex); |
| |
| rc = fasync_helper(fd, filep, mode, &megasas_async_queue); |
| |
| mutex_unlock(&megasas_async_queue_mutex); |
| |
| if (rc >= 0) { |
| /* For sanity check when we get ioctl */ |
| filep->private_data = filep; |
| return 0; |
| } |
| |
| printk(KERN_DEBUG "megasas: fasync_helper failed [%d]\n", rc); |
| |
| return rc; |
| } |
| |
| /** |
| * megasas_mgmt_poll - char node "poll" entry point |
| * */ |
| static unsigned int megasas_mgmt_poll(struct file *file, poll_table *wait) |
| { |
| unsigned int mask; |
| unsigned long flags; |
| |
| poll_wait(file, &megasas_poll_wait, wait); |
| spin_lock_irqsave(&poll_aen_lock, flags); |
| if (megasas_poll_wait_aen) |
| mask = (POLLIN | POLLRDNORM); |
| else |
| mask = 0; |
| megasas_poll_wait_aen = 0; |
| spin_unlock_irqrestore(&poll_aen_lock, flags); |
| return mask; |
| } |
| |
| /* |
| * megasas_set_crash_dump_params_ioctl: |
| * Send CRASH_DUMP_MODE DCMD to all controllers |
| * @cmd: MFI command frame |
| */ |
| |
| static int megasas_set_crash_dump_params_ioctl(struct megasas_cmd *cmd) |
| { |
| struct megasas_instance *local_instance; |
| int i, error = 0; |
| int crash_support; |
| |
| crash_support = cmd->frame->dcmd.mbox.w[0]; |
| |
| for (i = 0; i < megasas_mgmt_info.max_index; i++) { |
| local_instance = megasas_mgmt_info.instance[i]; |
| if (local_instance && local_instance->crash_dump_drv_support) { |
| if ((atomic_read(&local_instance->adprecovery) == |
| MEGASAS_HBA_OPERATIONAL) && |
| !megasas_set_crash_dump_params(local_instance, |
| crash_support)) { |
| local_instance->crash_dump_app_support = |
| crash_support; |
| dev_info(&local_instance->pdev->dev, |
| "Application firmware crash " |
| "dump mode set success\n"); |
| error = 0; |
| } else { |
| dev_info(&local_instance->pdev->dev, |
| "Application firmware crash " |
| "dump mode set failed\n"); |
| error = -1; |
| } |
| } |
| } |
| return error; |
| } |
| |
| /** |
| * megasas_mgmt_fw_ioctl - Issues management ioctls to FW |
| * @instance: Adapter soft state |
| * @argp: User's ioctl packet |
| */ |
| static int |
| megasas_mgmt_fw_ioctl(struct megasas_instance *instance, |
| struct megasas_iocpacket __user * user_ioc, |
| struct megasas_iocpacket *ioc) |
| { |
| struct megasas_sge32 *kern_sge32; |
| struct megasas_cmd *cmd; |
| void *kbuff_arr[MAX_IOCTL_SGE]; |
| dma_addr_t buf_handle = 0; |
| int error = 0, i; |
| void *sense = NULL; |
| dma_addr_t sense_handle; |
| unsigned long *sense_ptr; |
| |
| memset(kbuff_arr, 0, sizeof(kbuff_arr)); |
| |
| if (ioc->sge_count > MAX_IOCTL_SGE) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "SGE count [%d] > max limit [%d]\n", |
| ioc->sge_count, MAX_IOCTL_SGE); |
| return -EINVAL; |
| } |
| |
| cmd = megasas_get_cmd(instance); |
| if (!cmd) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to get a cmd packet\n"); |
| return -ENOMEM; |
| } |
| |
| /* |
| * User's IOCTL packet has 2 frames (maximum). Copy those two |
| * frames into our cmd's frames. cmd->frame's context will get |
| * overwritten when we copy from user's frames. So set that value |
| * alone separately |
| */ |
| memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE); |
| cmd->frame->hdr.context = cpu_to_le32(cmd->index); |
| cmd->frame->hdr.pad_0 = 0; |
| cmd->frame->hdr.flags &= cpu_to_le16(~(MFI_FRAME_IEEE | |
| MFI_FRAME_SGL64 | |
| MFI_FRAME_SENSE64)); |
| |
| if (cmd->frame->dcmd.opcode == MR_DRIVER_SET_APP_CRASHDUMP_MODE) { |
| error = megasas_set_crash_dump_params_ioctl(cmd); |
| megasas_return_cmd(instance, cmd); |
| return error; |
| } |
| |
| /* |
| * The management interface between applications and the fw uses |
| * MFI frames. E.g, RAID configuration changes, LD property changes |
| * etc are accomplishes through different kinds of MFI frames. The |
| * driver needs to care only about substituting user buffers with |
| * kernel buffers in SGLs. The location of SGL is embedded in the |
| * struct iocpacket itself. |
| */ |
| kern_sge32 = (struct megasas_sge32 *) |
| ((unsigned long)cmd->frame + ioc->sgl_off); |
| |
| /* |
| * For each user buffer, create a mirror buffer and copy in |
| */ |
| for (i = 0; i < ioc->sge_count; i++) { |
| if (!ioc->sgl[i].iov_len) |
| continue; |
| |
| kbuff_arr[i] = dma_alloc_coherent(&instance->pdev->dev, |
| ioc->sgl[i].iov_len, |
| &buf_handle, GFP_KERNEL); |
| if (!kbuff_arr[i]) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Failed to alloc " |
| "kernel SGL buffer for IOCTL\n"); |
| error = -ENOMEM; |
| goto out; |
| } |
| |
| /* |
| * We don't change the dma_coherent_mask, so |
| * pci_alloc_consistent only returns 32bit addresses |
| */ |
| kern_sge32[i].phys_addr = cpu_to_le32(buf_handle); |
| kern_sge32[i].length = cpu_to_le32(ioc->sgl[i].iov_len); |
| |
| /* |
| * We created a kernel buffer corresponding to the |
| * user buffer. Now copy in from the user buffer |
| */ |
| if (copy_from_user(kbuff_arr[i], ioc->sgl[i].iov_base, |
| (u32) (ioc->sgl[i].iov_len))) { |
| error = -EFAULT; |
| goto out; |
| } |
| } |
| |
| if (ioc->sense_len) { |
| sense = dma_alloc_coherent(&instance->pdev->dev, ioc->sense_len, |
| &sense_handle, GFP_KERNEL); |
| if (!sense) { |
| error = -ENOMEM; |
| goto out; |
| } |
| |
| sense_ptr = |
| (unsigned long *) ((unsigned long)cmd->frame + ioc->sense_off); |
| *sense_ptr = cpu_to_le32(sense_handle); |
| } |
| |
| /* |
| * Set the sync_cmd flag so that the ISR knows not to complete this |
| * cmd to the SCSI mid-layer |
| */ |
| cmd->sync_cmd = 1; |
| if (megasas_issue_blocked_cmd(instance, cmd, 0) == DCMD_NOT_FIRED) { |
| cmd->sync_cmd = 0; |
| dev_err(&instance->pdev->dev, |
| "return -EBUSY from %s %d opcode 0x%x cmd->cmd_status_drv 0x%x\n", |
| __func__, __LINE__, cmd->frame->dcmd.opcode, |
| cmd->cmd_status_drv); |
| return -EBUSY; |
| } |
| |
| cmd->sync_cmd = 0; |
| |
| if (instance->unload == 1) { |
| dev_info(&instance->pdev->dev, "Driver unload is in progress " |
| "don't submit data to application\n"); |
| goto out; |
| } |
| /* |
| * copy out the kernel buffers to user buffers |
| */ |
| for (i = 0; i < ioc->sge_count; i++) { |
| if (copy_to_user(ioc->sgl[i].iov_base, kbuff_arr[i], |
| ioc->sgl[i].iov_len)) { |
| error = -EFAULT; |
| goto out; |
| } |
| } |
| |
| /* |
| * copy out the sense |
| */ |
| if (ioc->sense_len) { |
| /* |
| * sense_ptr points to the location that has the user |
| * sense buffer address |
| */ |
| sense_ptr = (unsigned long *) ((unsigned long)ioc->frame.raw + |
| ioc->sense_off); |
| |
| if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)), |
| sense, ioc->sense_len)) { |
| dev_err(&instance->pdev->dev, "Failed to copy out to user " |
| "sense data\n"); |
| error = -EFAULT; |
| goto out; |
| } |
| } |
| |
| /* |
| * copy the status codes returned by the fw |
| */ |
| if (copy_to_user(&user_ioc->frame.hdr.cmd_status, |
| &cmd->frame->hdr.cmd_status, sizeof(u8))) { |
| dev_printk(KERN_DEBUG, &instance->pdev->dev, "Error copying out cmd_status\n"); |
| error = -EFAULT; |
| } |
| |
| out: |
| if (sense) { |
| dma_free_coherent(&instance->pdev->dev, ioc->sense_len, |
| sense, sense_handle); |
| } |
| |
| for (i = 0; i < ioc->sge_count; i++) { |
| if (kbuff_arr[i]) { |
| dma_free_coherent(&instance->pdev->dev, |
| le32_to_cpu(kern_sge32[i].length), |
| kbuff_arr[i], |
| le32_to_cpu(kern_sge32[i].phys_addr)); |
| kbuff_arr[i] = NULL; |
| } |
| } |
| |
| megasas_return_cmd(instance, cmd); |
| return error; |
| } |
| |
| static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg) |
| { |
| struct megasas_iocpacket __user *user_ioc = |
| (struct megasas_iocpacket __user *)arg; |
| struct megasas_iocpacket *ioc; |
| struct megasas_instance *instance; |
| int error; |
| int i; |
| unsigned long flags; |
| u32 wait_time = MEGASAS_RESET_WAIT_TIME; |
| |
| ioc = memdup_user(user_ioc, sizeof(*ioc)); |
| if (IS_ERR(ioc)) |
| return PTR_ERR(ioc); |
| |
| instance = megasas_lookup_instance(ioc->host_no); |
| if (!instance) { |
| error = -ENODEV; |
| goto out_kfree_ioc; |
| } |
| |
| /* Adjust ioctl wait time for VF mode */ |
| if (instance->requestorId) |
| wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF; |
| |
| /* Block ioctls in VF mode */ |
| if (instance->requestorId && !allow_vf_ioctls) { |
| error = -ENODEV; |
| goto out_kfree_ioc; |
| } |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
| dev_err(&instance->pdev->dev, "Controller in crit error\n"); |
| error = -ENODEV; |
| goto out_kfree_ioc; |
| } |
| |
| if (instance->unload == 1) { |
| error = -ENODEV; |
| goto out_kfree_ioc; |
| } |
| |
| if (down_interruptible(&instance->ioctl_sem)) { |
| error = -ERESTARTSYS; |
| goto out_kfree_ioc; |
| } |
| |
| for (i = 0; i < wait_time; i++) { |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) { |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| break; |
| } |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { |
| dev_notice(&instance->pdev->dev, "waiting" |
| "for controller reset to finish\n"); |
| } |
| |
| msleep(1000); |
| } |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| dev_err(&instance->pdev->dev, "timed out while" |
| "waiting for HBA to recover\n"); |
| error = -ENODEV; |
| goto out_up; |
| } |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| error = megasas_mgmt_fw_ioctl(instance, user_ioc, ioc); |
| out_up: |
| up(&instance->ioctl_sem); |
| |
| out_kfree_ioc: |
| kfree(ioc); |
| return error; |
| } |
| |
| static int megasas_mgmt_ioctl_aen(struct file *file, unsigned long arg) |
| { |
| struct megasas_instance *instance; |
| struct megasas_aen aen; |
| int error; |
| int i; |
| unsigned long flags; |
| u32 wait_time = MEGASAS_RESET_WAIT_TIME; |
| |
| if (file->private_data != file) { |
| printk(KERN_DEBUG "megasas: fasync_helper was not " |
| "called first\n"); |
| return -EINVAL; |
| } |
| |
| if (copy_from_user(&aen, (void __user *)arg, sizeof(aen))) |
| return -EFAULT; |
| |
| instance = megasas_lookup_instance(aen.host_no); |
| |
| if (!instance) |
| return -ENODEV; |
| |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HW_CRITICAL_ERROR) { |
| return -ENODEV; |
| } |
| |
| if (instance->unload == 1) { |
| return -ENODEV; |
| } |
| |
| for (i = 0; i < wait_time; i++) { |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| if (atomic_read(&instance->adprecovery) == MEGASAS_HBA_OPERATIONAL) { |
| spin_unlock_irqrestore(&instance->hba_lock, |
| flags); |
| break; |
| } |
| |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| if (!(i % MEGASAS_RESET_NOTICE_INTERVAL)) { |
| dev_notice(&instance->pdev->dev, "waiting for" |
| "controller reset to finish\n"); |
| } |
| |
| msleep(1000); |
| } |
| |
| spin_lock_irqsave(&instance->hba_lock, flags); |
| if (atomic_read(&instance->adprecovery) != MEGASAS_HBA_OPERATIONAL) { |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| dev_err(&instance->pdev->dev, "timed out while waiting" |
| "for HBA to recover\n"); |
| return -ENODEV; |
| } |
| spin_unlock_irqrestore(&instance->hba_lock, flags); |
| |
| mutex_lock(&instance->reset_mutex); |
| error = megasas_register_aen(instance, aen.seq_num, |
| aen.class_locale_word); |
| mutex_unlock(&instance->reset_mutex); |
| return error; |
| } |
| |
| /** |
| * megasas_mgmt_ioctl - char node ioctl entry point |
| */ |
| static long |
| megasas_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| switch (cmd) { |
| case MEGASAS_IOC_FIRMWARE: |
| return megasas_mgmt_ioctl_fw(file, arg); |
| |
| case MEGASAS_IOC_GET_AEN: |
| return megasas_mgmt_ioctl_aen(file, arg); |
| } |
| |
| return -ENOTTY; |
| } |
| |
| #ifdef CONFIG_COMPAT |
| static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg) |
| { |
| struct compat_megasas_iocpacket __user *cioc = |
| (struct compat_megasas_iocpacket __user *)arg; |
| struct megasas_iocpacket __user *ioc = |
| compat_alloc_user_space(sizeof(struct megasas_iocpacket)); |
| int i; |
| int error = 0; |
| compat_uptr_t ptr; |
| u32 local_sense_off; |
| u32 local_sense_len; |
| u32 user_sense_off; |
| |
| if (clear_user(ioc, sizeof(*ioc))) |
| return -EFAULT; |
| |
| if (copy_in_user(&ioc->host_no, &cioc->host_no, sizeof(u16)) || |
| copy_in_user(&ioc->sgl_off, &cioc->sgl_off, sizeof(u32)) || |
| copy_in_user(&ioc->sense_off, &cioc->sense_off, sizeof(u32)) || |
| copy_in_user(&ioc->sense_len, &cioc->sense_len, sizeof(u32)) || |
| copy_in_user(ioc->frame.raw, cioc->frame.raw, 128) || |
| copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32))) |
| return -EFAULT; |
| |
| /* |
| * The sense_ptr is used in megasas_mgmt_fw_ioctl only when |
| * sense_len is not null, so prepare the 64bit value under |
| * the same condition. |
| */ |
| if (get_user(local_sense_off, &ioc->sense_off) || |
| get_user(local_sense_len, &ioc->sense_len) || |
| get_user(user_sense_off, &cioc->sense_off)) |
| return -EFAULT; |
| |
| if (local_sense_len) { |
| void __user **sense_ioc_ptr = |
| (void __user **)((u8 *)((unsigned long)&ioc->frame.raw) + local_sense_off); |
| compat_uptr_t *sense_cioc_ptr = |
| (compat_uptr_t *)(((unsigned long)&cioc->frame.raw) + user_sense_off); |
| if (get_user(ptr, sense_cioc_ptr) || |
| put_user(compat_ptr(ptr), sense_ioc_ptr)) |
| return -EFAULT; |
| } |
| |
| for (i = 0; i < MAX_IOCTL_SGE; i++) { |
| if (get_user(ptr, &cioc->sgl[i].iov_base) || |
| put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) || |
| copy_in_user(&ioc->sgl[i].iov_len, |
| &cioc->sgl[i].iov_len, sizeof(compat_size_t))) |
| return -EFAULT; |
| } |
| |
| error = megasas_mgmt_ioctl_fw(file, (unsigned long)ioc); |
| |
| if (copy_in_user(&cioc->frame.hdr.cmd_status, |
| &ioc->frame.hdr.cmd_status, sizeof(u8))) { |
| printk(KERN_DEBUG "megasas: error copy_in_user cmd_status\n"); |
| return -EFAULT; |
| } |
| return error; |
| } |
| |
| static long |
| megasas_mgmt_compat_ioctl(struct file *file, unsigned int cmd, |
| unsigned long arg) |
| { |
| switch (cmd) { |
| case MEGASAS_IOC_FIRMWARE32: |
| return megasas_mgmt_compat_ioctl_fw(file, arg); |
| case MEGASAS_IOC_GET_AEN: |
| return megasas_mgmt_ioctl_aen(file, arg); |
| } |
| |
| return -ENOTTY; |
| } |
| #endif |
| |
| /* |
| * File operations structure for management interface |
| */ |
| static const struct file_operations megasas_mgmt_fops = { |
| .owner = THIS_MODULE, |
| .open = megasas_mgmt_open, |
| .fasync = megasas_mgmt_fasync, |
| .unlocked_ioctl = megasas_mgmt_ioctl, |
| .poll = megasas_mgmt_poll, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = megasas_mgmt_compat_ioctl, |
| #endif |
| .llseek = noop_llseek, |
| }; |
| |
| /* |
| * PCI hotplug support registration structure |
| */ |
| static struct pci_driver megasas_pci_driver = { |
| |
| .name = "megaraid_sas", |
| .id_table = megasas_pci_table, |
| .probe = megasas_probe_one, |
| .remove = megasas_detach_one, |
| .suspend = megasas_suspend, |
| .resume = megasas_resume, |
| .shutdown = megasas_shutdown, |
| }; |
| |
| /* |
| * Sysfs driver attributes |
| */ |
| static ssize_t megasas_sysfs_show_version(struct device_driver *dd, char *buf) |
| { |
| return snprintf(buf, strlen(MEGASAS_VERSION) + 2, "%s\n", |
| MEGASAS_VERSION); |
| } |
| |
| static DRIVER_ATTR(version, S_IRUGO, megasas_sysfs_show_version, NULL); |
| |
| static ssize_t |
| megasas_sysfs_show_release_date(struct device_driver *dd, char *buf) |
| { |
| return snprintf(buf, strlen(MEGASAS_RELDATE) + 2, "%s\n", |
| MEGASAS_RELDATE); |
| } |
| |
| static DRIVER_ATTR(release_date, S_IRUGO, megasas_sysfs_show_release_date, NULL); |
| |
| static ssize_t |
| megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf) |
| { |
| return sprintf(buf, "%u\n", support_poll_for_event); |
| } |
| |
| static DRIVER_ATTR(support_poll_for_event, S_IRUGO, |
| megasas_sysfs_show_support_poll_for_event, NULL); |
| |
| static ssize_t |
| megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf) |
| { |
| return sprintf(buf, "%u\n", support_device_change); |
| } |
| |
| static DRIVER_ATTR(support_device_change, S_IRUGO, |
| megasas_sysfs_show_support_device_change, NULL); |
| |
| static ssize_t |
| megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf) |
| { |
| return sprintf(buf, "%u\n", megasas_dbg_lvl); |
| } |
| |
| static ssize_t |
| megasas_sysfs_set_dbg_lvl(struct device_driver *dd, const char *buf, size_t count) |
| { |
| int retval = count; |
| |
| if (sscanf(buf, "%u", &megasas_dbg_lvl) < 1) { |
| printk(KERN_ERR "megasas: could not set dbg_lvl\n"); |
| retval = -EINVAL; |
| } |
| return retval; |
| } |
| |
| static DRIVER_ATTR(dbg_lvl, S_IRUGO|S_IWUSR, megasas_sysfs_show_dbg_lvl, |
| megasas_sysfs_set_dbg_lvl); |
| |
| static void |
| megasas_aen_polling(struct work_struct *work) |
| { |
| struct megasas_aen_event *ev = |
| container_of(work, struct megasas_aen_event, hotplug_work.work); |
| struct megasas_instance *instance = ev->instance; |
| union megasas_evt_class_locale class_locale; |
| struct Scsi_Host *host; |
| struct scsi_device *sdev1; |
| u16 pd_index = 0; |
| u16 ld_index = 0; |
| int i, j, doscan = 0; |
| u32 seq_num, wait_time = MEGASAS_RESET_WAIT_TIME; |
| int error; |
| u8 dcmd_ret = DCMD_SUCCESS; |
| |
| if (!instance) { |
| printk(KERN_ERR "invalid instance!\n"); |
| kfree(ev); |
| return; |
| } |
| |
| /* Adjust event workqueue thread wait time for VF mode */ |
| if (instance->requestorId) |
| wait_time = MEGASAS_ROUTINE_WAIT_TIME_VF; |
| |
| /* Don't run the event workqueue thread if OCR is running */ |
| mutex_lock(&instance->reset_mutex); |
| |
| instance->ev = NULL; |
| host = instance->host; |
| if (instance->evt_detail) { |
| megasas_decode_evt(instance); |
| |
| switch (le32_to_cpu(instance->evt_detail->code)) { |
| |
| case MR_EVT_PD_INSERTED: |
| case MR_EVT_PD_REMOVED: |
| dcmd_ret = megasas_get_pd_list(instance); |
| if (dcmd_ret == DCMD_SUCCESS) |
| doscan = SCAN_PD_CHANNEL; |
| break; |
| |
| case MR_EVT_LD_OFFLINE: |
| case MR_EVT_CFG_CLEARED: |
| case MR_EVT_LD_DELETED: |
| case MR_EVT_LD_CREATED: |
| if (!instance->requestorId || |
| (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0))) |
| dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); |
| |
| if (dcmd_ret == DCMD_SUCCESS) |
| doscan = SCAN_VD_CHANNEL; |
| |
| break; |
| |
| case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: |
| case MR_EVT_FOREIGN_CFG_IMPORTED: |
| case MR_EVT_LD_STATE_CHANGE: |
| dcmd_ret = megasas_get_pd_list(instance); |
| |
| if (dcmd_ret != DCMD_SUCCESS) |
| break; |
| |
| if (!instance->requestorId || |
| (instance->requestorId && megasas_get_ld_vf_affiliation(instance, 0))) |
| dcmd_ret = megasas_ld_list_query(instance, MR_LD_QUERY_TYPE_EXPOSED_TO_HOST); |
| |
| if (dcmd_ret != DCMD_SUCCESS) |
| break; |
| |
| doscan = SCAN_VD_CHANNEL | SCAN_PD_CHANNEL; |
| dev_info(&instance->pdev->dev, "scanning for scsi%d...\n", |
| instance->host->host_no); |
| break; |
| |
| case MR_EVT_CTRL_PROP_CHANGED: |
| dcmd_ret = megasas_get_ctrl_info(instance); |
| break; |
| default: |
| doscan = 0; |
| break; |
| } |
| } else { |
| dev_err(&instance->pdev->dev, "invalid evt_detail!\n"); |
| mutex_unlock(&instance->reset_mutex); |
| kfree(ev); |
| return; |
| } |
| |
| mutex_unlock(&instance->reset_mutex); |
| |
| if (doscan & SCAN_PD_CHANNEL) { |
| for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { |
| for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { |
| pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j; |
| sdev1 = scsi_device_lookup(host, i, j, 0); |
| if (instance->pd_list[pd_index].driveState == |
| MR_PD_STATE_SYSTEM) { |
| if (!sdev1) |
| scsi_add_device(host, i, j, 0); |
| else |
| scsi_device_put(sdev1); |
| } else { |
| if (sdev1) { |
| scsi_remove_device(sdev1); |
| scsi_device_put(sdev1); |
| } |
| } |
| } |
| } |
| } |
| |
| if (doscan & SCAN_VD_CHANNEL) { |
| for (i = 0; i < MEGASAS_MAX_LD_CHANNELS; i++) { |
| for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { |
| ld_index = (i * MEGASAS_MAX_DEV_PER_CHANNEL) + j; |
| sdev1 = scsi_device_lookup(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); |
| if (instance->ld_ids[ld_index] != 0xff) { |
| if (!sdev1) |
| scsi_add_device(host, MEGASAS_MAX_PD_CHANNELS + i, j, 0); |
| else |
| scsi_device_put(sdev1); |
| } else { |
| if (sdev1) { |
| scsi_remove_device(sdev1); |
| scsi_device_put(sdev1); |
| } |
| } |
| } |
| } |
| } |
| |
| if (dcmd_ret == DCMD_SUCCESS) |
| seq_num = le32_to_cpu(instance->evt_detail->seq_num) + 1; |
| else |
| seq_num = instance->last_seq_num; |
| |
| /* Register AEN with FW for latest sequence number plus 1 */ |
| class_locale.members.reserved = 0; |
| class_locale.members.locale = MR_EVT_LOCALE_ALL; |
| class_locale.members.class = MR_EVT_CLASS_DEBUG; |
| |
| if (instance->aen_cmd != NULL) { |
| kfree(ev); |
| return; |
| } |
| |
| mutex_lock(&instance->reset_mutex); |
| error = megasas_register_aen(instance, seq_num, |
| class_locale.word); |
| if (error) |
| dev_err(&instance->pdev->dev, |
| "register aen failed error %x\n", error); |
| |
| mutex_unlock(&instance->reset_mutex); |
| kfree(ev); |
| } |
| |
| /** |
| * megasas_init - Driver load entry point |
| */ |
| static int __init megasas_init(void) |
| { |
| int rval; |
| |
| /* |
| * Booted in kdump kernel, minimize memory footprints by |
| * disabling few features |
| */ |
| if (reset_devices) { |
| msix_vectors = 1; |
| rdpq_enable = 0; |
| dual_qdepth_disable = 1; |
| } |
| |
| /* |
| * Announce driver version and other information |
| */ |
| pr_info("megasas: %s\n", MEGASAS_VERSION); |
| |
| spin_lock_init(&poll_aen_lock); |
| |
| support_poll_for_event = 2; |
| support_device_change = 1; |
| |
| memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info)); |
| |
| /* |
| * Register character device node |
| */ |
| rval = register_chrdev(0, "megaraid_sas_ioctl", &megasas_mgmt_fops); |
| |
| if (rval < 0) { |
| printk(KERN_DEBUG "megasas: failed to open device node\n"); |
| return rval; |
| } |
| |
| megasas_mgmt_majorno = rval; |
| |
| /* |
| * Register ourselves as PCI hotplug module |
| */ |
| rval = pci_register_driver(&megasas_pci_driver); |
| |
| if (rval) { |
| printk(KERN_DEBUG "megasas: PCI hotplug registration failed \n"); |
| goto err_pcidrv; |
| } |
| |
| rval = driver_create_file(&megasas_pci_driver.driver, |
| &driver_attr_version); |
| if (rval) |
| goto err_dcf_attr_ver; |
| |
| rval = driver_create_file(&megasas_pci_driver.driver, |
| &driver_attr_release_date); |
| if (rval) |
| goto err_dcf_rel_date; |
| |
| rval = driver_create_file(&megasas_pci_driver.driver, |
| &driver_attr_support_poll_for_event); |
| if (rval) |
| goto err_dcf_support_poll_for_event; |
| |
| rval = driver_create_file(&megasas_pci_driver.driver, |
| &driver_attr_dbg_lvl); |
| if (rval) |
| goto err_dcf_dbg_lvl; |
| rval = driver_create_file(&megasas_pci_driver.driver, |
| &driver_attr_support_device_change); |
| if (rval) |
| goto err_dcf_support_device_change; |
| |
| return rval; |
| |
| err_dcf_support_device_change: |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_dbg_lvl); |
| err_dcf_dbg_lvl: |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_support_poll_for_event); |
| err_dcf_support_poll_for_event: |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_release_date); |
| err_dcf_rel_date: |
| driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); |
| err_dcf_attr_ver: |
| pci_unregister_driver(&megasas_pci_driver); |
| err_pcidrv: |
| unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); |
| return rval; |
| } |
| |
| /** |
| * megasas_exit - Driver unload entry point |
| */ |
| static void __exit megasas_exit(void) |
| { |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_dbg_lvl); |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_support_poll_for_event); |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_support_device_change); |
| driver_remove_file(&megasas_pci_driver.driver, |
| &driver_attr_release_date); |
| driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version); |
| |
| pci_unregister_driver(&megasas_pci_driver); |
| unregister_chrdev(megasas_mgmt_majorno, "megaraid_sas_ioctl"); |
| } |
| |
| module_init(megasas_init); |
| module_exit(megasas_exit); |