/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __MEGARAID_H__ #define __MEGARAID_H__ #include <linux/spinlock.h> #include <linux/mutex.h> #include <scsi/scsi_cmnd.h> #define MEGARAID_VERSION … /* * Driver features - change the values to enable or disable features in the * driver. */ /* * Command coalescing - This feature allows the driver to be able to combine * two or more commands and issue as one command in order to boost I/O * performance. Useful if the nature of the I/O is sequential. It is not very * useful for random natured I/Os. */ #define MEGA_HAVE_COALESCING … /* * Clustering support - Set this flag if you are planning to use the * clustering services provided by the megaraid controllers and planning to * setup a cluster */ #define MEGA_HAVE_CLUSTERING … /* * Driver statistics - Set this flag if you are interested in statics about * number of I/O completed on each logical drive and how many interrupts * generated. If enabled, this information is available through /proc * interface and through the private ioctl. Setting this flag has a * performance penalty. */ #define MEGA_HAVE_STATS … /* * Enhanced /proc interface - This feature will allow you to have a more * detailed /proc interface for megaraid driver. E.g., a real time update of * the status of the logical drives, battery status, physical drives etc. */ #define MEGA_HAVE_ENH_PROC … #define MAX_DEV_TYPE … #define PCI_DEVICE_ID_DISCOVERY … #define PCI_DEVICE_ID_PERC4_DI … #define PCI_DEVICE_ID_PERC4_QC_VERDE … #define HBA_SIGNATURE … #define HBA_SIGNATURE_471 … #define HBA_SIGNATURE_64BIT … #define MBOX_BUSY_WAIT … #define DEFAULT_INITIATOR_ID … #define MAX_SGLIST … #define MIN_SGLIST … #define MAX_COMMANDS … #define CMDID_INT_CMDS … #define MAX_CDB_LEN … #define MAX_EXT_CDB_LEN … #define DEF_CMD_PER_LUN … #define MAX_CMD_PER_LUN … #define MAX_FIRMWARE_STATUS … #define MAX_XFER_PER_CMD … #define MAX_SECTORS_PER_IO … #define MAX_LOGICAL_DRIVES_40LD … #define FC_MAX_PHYSICAL_DEVICES … #define MAX_LOGICAL_DRIVES_8LD … #define MAX_CHANNELS … #define MAX_TARGET … #define MAX_PHYSICAL_DRIVES … #define MAX_ROW_SIZE_40LD … #define MAX_ROW_SIZE_8LD … #define MAX_SPAN_DEPTH … #define NVIRT_CHAN … struct mbox_out { … } __attribute__ ((packed)); struct mbox_in { … } __attribute__ ((packed)); mbox_t; mbox64_t; /* * Passthru definitions */ #define MAX_REQ_SENSE_LEN … mega_passthru; /* * Extended passthru: support CDB > 10 bytes */ mega_ext_passthru; mega_sgl64; mega_sglist; /* Queued command data */ scb_t; /* * Flags to follow the scb as it transitions between various stages */ #define SCB_FREE … #define SCB_ACTIVE … #define SCB_PENDQ … #define SCB_ISSUED … #define SCB_ABORT … #define SCB_RESET … /* * Utilities declare this strcture size as 1024 bytes. So more fields can * be added in future. */ mega_product_info; struct notify { … } __attribute__ ((packed)); #define MAX_NOTIFY_SIZE … #define CUR_NOTIFY_SIZE … mega_inquiry3; /* Structures */ mega_adp_info; mega_ldrv_info; mega_pdrv_info; /* RAID inquiry: Mailbox command 0x05*/ mraid_inquiry; /* RAID extended inquiry: Mailbox command 0x04*/ mraid_ext_inquiry; adp_device; adp_span_40ld; adp_span_8ld; logdrv_param; logdrv_40ld; logdrv_8ld; phys_drv; disk_array_40ld; disk_array_8ld; /* * User ioctl structure. * This structure will be used for Traditional Method ioctl interface * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the * Driver ioctls. * The Driver ioctl interface handles the commands at the driver level, * without being sent to the card. */ /* system call imposed limit. Change accordingly */ #define IOCTL_MAX_DATALEN … struct uioctl_t { … } __attribute__ ((packed)); /* * struct mcontroller is used to pass information about the controllers in the * system. Its up to the application how to use the information. We are passing * as much info about the cards as possible and useful. Before issuing the * call to find information about the cards, the application needs to issue a * ioctl first to find out the number of controllers in the system. */ #define MAX_CONTROLLERS … struct mcontroller { … }; /* * mailbox structure used for internal commands */ megacmd_t; /* * Defines for Driver IOCTL interface */ #define MEGAIOC_MAGIC … #define MEGAIOC_QNADAP … #define MEGAIOC_QDRVRVER … #define MEGAIOC_QADAPINFO … #define MKADAP(adapno) … #define GETADAP(mkadap) … /* * Definition for the new ioctl interface (NIT) */ /* * Vendor specific Group-7 commands */ #define VENDOR_SPECIFIC_COMMANDS … #define MEGA_INTERNAL_CMD … /* * The ioctl command. No other command shall be used for this interface */ #define USCSICMD … /* * Data direction flags */ #define UIOC_RD … #define UIOC_WR … /* * ioctl opcodes */ #define MBOX_CMD … #define GET_DRIVER_VER … #define GET_N_ADAP … #define GET_ADAP_INFO … #define GET_CAP … #define GET_STATS … /* * The ioctl structure. * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. */ nitioctl_t; /* * I/O statistics for some applications like SNMP agent. The caller must * provide the number of logical drives for which status should be reported. */ megastat_t; struct private_bios_data { … } __attribute__ ((packed)); /* * Mailbox and firmware commands and subopcodes used in this driver. */ #define MEGA_MBOXCMD_LREAD … #define MEGA_MBOXCMD_LWRITE … #define MEGA_MBOXCMD_PASSTHRU … #define MEGA_MBOXCMD_ADPEXTINQ … #define MEGA_MBOXCMD_ADAPTERINQ … #define MEGA_MBOXCMD_LREAD64 … #define MEGA_MBOXCMD_LWRITE64 … #define MEGA_MBOXCMD_PASSTHRU64 … #define MEGA_MBOXCMD_EXTPTHRU … #define MAIN_MISC_OPCODE … #define GET_MAX_SG_SUPPORT … #define FC_NEW_CONFIG … #define NC_SUBOP_PRODUCT_INFO … #define NC_SUBOP_ENQUIRY3 … #define ENQ3_GET_SOLICITED_FULL … #define OP_DCMD_READ_CONFIG … #define NEW_READ_CONFIG_8LD … #define READ_CONFIG_8LD … #define FLUSH_ADAPTER … #define FLUSH_SYSTEM … /* * Command for random deletion of logical drives */ #define FC_DEL_LOGDRV … #define OP_SUP_DEL_LOGDRV … #define OP_GET_LDID_MAP … #define OP_DEL_LOGDRV … /* * BIOS commands */ #define IS_BIOS_ENABLED … #define GET_BIOS … #define CHNL_CLASS … #define GET_CHNL_CLASS … #define SET_CHNL_CLASS … #define CH_RAID … #define CH_SCSI … #define BIOS_PVT_DATA … #define GET_BIOS_PVT_DATA … /* * Commands to support clustering */ #define MEGA_GET_TARGET_ID … #define MEGA_CLUSTER_OP … #define MEGA_GET_CLUSTER_MODE … #define MEGA_CLUSTER_CMD … #define MEGA_RESERVE_LD … #define MEGA_RELEASE_LD … #define MEGA_RESET_RESERVATIONS … #define MEGA_RESERVATION_STATUS … #define MEGA_RESERVE_PD … #define MEGA_RELEASE_PD … /* * Module battery status */ #define MEGA_BATT_MODULE_MISSING … #define MEGA_BATT_LOW_VOLTAGE … #define MEGA_BATT_TEMP_HIGH … #define MEGA_BATT_PACK_MISSING … #define MEGA_BATT_CHARGE_MASK … #define MEGA_BATT_CHARGE_DONE … #define MEGA_BATT_CHARGE_INPROG … #define MEGA_BATT_CHARGE_FAIL … #define MEGA_BATT_CYCLES_EXCEEDED … /* * Physical drive states. */ #define PDRV_UNCNF … #define PDRV_ONLINE … #define PDRV_FAILED … #define PDRV_RBLD … #define PDRV_HOTSPARE … /* * Raid logical drive states. */ #define RDRV_OFFLINE … #define RDRV_DEGRADED … #define RDRV_OPTIMAL … #define RDRV_DELETED … /* * Read, write and cache policies */ #define NO_READ_AHEAD … #define READ_AHEAD … #define ADAP_READ_AHEAD … #define WRMODE_WRITE_THRU … #define WRMODE_WRITE_BACK … #define CACHED_IO … #define DIRECT_IO … struct megaraid_cmd_priv { … }; #define SCSI_LIST(scp) … struct scsi_cmd_and_priv { … }; static inline struct scsi_cmnd * megaraid_to_scsi_cmd(struct megaraid_cmd_priv *cmd_priv) { … } /* * Each controller's soft state */ adapter_t; struct mega_hbas { … }; /* * For state flag. Do not use LSB(8 bits) which are * reserved for storing info about channels. */ #define IN_ABORT … #define IN_RESET … #define BOARD_MEMMAP … #define BOARD_IOMAP … #define BOARD_40LD … #define BOARD_64BIT … #define INTR_VALID … #define PCI_CONF_AMISIG … #define PCI_CONF_AMISIG64 … #define MEGA_DMA_TYPE_NONE … #define MEGA_BULK_DATA … #define MEGA_SGLIST … /* * Parameters for the io-mapped controllers */ /* I/O Port offsets */ #define CMD_PORT … #define ACK_PORT … #define TOGGLE_PORT … #define INTR_PORT … #define MBOX_BUSY_PORT … #define MBOX_PORT0 … #define MBOX_PORT1 … #define MBOX_PORT2 … #define MBOX_PORT3 … #define ENABLE_MBOX_REGION … /* I/O Port Values */ #define ISSUE_BYTE … #define ACK_BYTE … #define ENABLE_INTR_BYTE … #define DISABLE_INTR_BYTE … #define VALID_INTR_BYTE … #define MBOX_BUSY_BYTE … #define ENABLE_MBOX_BYTE … /* Setup some port macros here */ #define issue_command(adapter) … #define irq_state(adapter) … #define set_irq_state(adapter, value) … #define irq_ack(adapter) … #define irq_enable(adapter) … #define irq_disable(adapter) … /* * This is our SYSDEP area. All kernel specific detail should be placed here - * as much as possible */ /* * End of SYSDEP area */ const char *megaraid_info (struct Scsi_Host *); static int mega_query_adapter(adapter_t *); static int issue_scb(adapter_t *, scb_t *); static int mega_setup_mailbox(adapter_t *); static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); static scb_t * mega_build_cmd(adapter_t *, struct scsi_cmnd *, int *); static void __mega_runpendq(adapter_t *); static int issue_scb_block(adapter_t *, u_char *); static irqreturn_t megaraid_isr_memmapped(int, void *); static irqreturn_t megaraid_isr_iomapped(int, void *); static void mega_free_scb(adapter_t *, scb_t *); static int megaraid_abort(struct scsi_cmnd *); static int megaraid_reset(struct scsi_cmnd *); static int megaraid_abort_and_reset(adapter_t *, struct scsi_cmnd *, int); static int megaraid_biosparam(struct scsi_device *, struct block_device *, sector_t, int []); static int mega_build_sglist (adapter_t *adapter, scb_t *scb, u32 *buffer, u32 *length); static int __mega_busywait_mbox (adapter_t *); static void mega_rundoneq (adapter_t *); static void mega_cmd_done(adapter_t *, u8 [], int, int); static inline void mega_free_sgl (adapter_t *adapter); static void mega_8_to_40ld (mraid_inquiry *inquiry, mega_inquiry3 *enquiry3, mega_product_info *); static int megadev_open (struct inode *, struct file *); static int megadev_ioctl (struct file *, unsigned int, unsigned long); static int mega_m_to_n(void __user *, nitioctl_t *); static int mega_n_to_m(void __user *, megacmd_t *); static int mega_init_scb (adapter_t *); static int mega_is_bios_enabled (adapter_t *); #ifdef CONFIG_PROC_FS static void mega_create_proc_entry(int, struct proc_dir_entry *); static int mega_adapinq(adapter_t *, dma_addr_t); static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); #endif static int mega_support_ext_cdb(adapter_t *); static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, struct scsi_cmnd *, int, int); static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, scb_t *, struct scsi_cmnd *, int, int); static void mega_enum_raid_scsi(adapter_t *); static void mega_get_boot_drv(adapter_t *); static int mega_support_random_del(adapter_t *); static int mega_del_logdrv(adapter_t *, int); static int mega_do_del_logdrv(adapter_t *, int); static void mega_get_max_sgl(adapter_t *); static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); static int mega_support_cluster(adapter_t *); #endif /* vi: set ts=8 sw=8 tw=78: */
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