| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __MEGARAID_H__ |
| #define __MEGARAID_H__ |
| |
| #include <linux/spinlock.h> |
| #include <linux/mutex.h> |
| |
| #define MEGARAID_VERSION \ |
| "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" |
| |
| /* |
| * 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 0 |
| |
| /* |
| * 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 1 |
| |
| /* |
| * 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 0 |
| |
| /* |
| * 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 1 |
| |
| #define MAX_DEV_TYPE 32 |
| |
| #define PCI_DEVICE_ID_DISCOVERY 0x000E |
| #define PCI_DEVICE_ID_PERC4_DI 0x000F |
| #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 |
| |
| #define HBA_SIGNATURE 0x3344 |
| #define HBA_SIGNATURE_471 0xCCCC |
| #define HBA_SIGNATURE_64BIT 0x0299 |
| |
| #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for |
| mailbox to be free */ |
| #define DEFAULT_INITIATOR_ID 7 |
| |
| #define MAX_SGLIST 64 /* max supported in f/w */ |
| #define MIN_SGLIST 26 /* guaranteed to support these many */ |
| #define MAX_COMMANDS 126 |
| #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS |
| is less than max commands |
| supported by any f/w */ |
| |
| #define MAX_CDB_LEN 10 |
| #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ |
| |
| #define DEF_CMD_PER_LUN 63 |
| #define MAX_CMD_PER_LUN MAX_COMMANDS |
| #define MAX_FIRMWARE_STATUS 46 |
| #define MAX_XFER_PER_CMD (64*1024) |
| #define MAX_SECTORS_PER_IO 128 |
| |
| #define MAX_LOGICAL_DRIVES_40LD 40 |
| #define FC_MAX_PHYSICAL_DEVICES 256 |
| #define MAX_LOGICAL_DRIVES_8LD 8 |
| #define MAX_CHANNELS 5 |
| #define MAX_TARGET 15 |
| #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET |
| #define MAX_ROW_SIZE_40LD 32 |
| #define MAX_ROW_SIZE_8LD 8 |
| #define MAX_SPAN_DEPTH 8 |
| |
| #define NVIRT_CHAN 4 /* # of virtual channels to represent |
| up to 60 logical drives */ |
| struct mbox_out { |
| /* 0x0 */ u8 cmd; |
| /* 0x1 */ u8 cmdid; |
| /* 0x2 */ u16 numsectors; |
| /* 0x4 */ u32 lba; |
| /* 0x8 */ u32 xferaddr; |
| /* 0xC */ u8 logdrv; |
| /* 0xD */ u8 numsgelements; |
| /* 0xE */ u8 resvd; |
| } __attribute__ ((packed)); |
| |
| struct mbox_in { |
| /* 0xF */ volatile u8 busy; |
| /* 0x10 */ volatile u8 numstatus; |
| /* 0x11 */ volatile u8 status; |
| /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; |
| volatile u8 poll; |
| volatile u8 ack; |
| } __attribute__ ((packed)); |
| |
| typedef struct { |
| struct mbox_out m_out; |
| struct mbox_in m_in; |
| } __attribute__ ((packed)) mbox_t; |
| |
| typedef struct { |
| u32 xfer_segment_lo; |
| u32 xfer_segment_hi; |
| mbox_t mbox; |
| } __attribute__ ((packed)) mbox64_t; |
| |
| |
| /* |
| * Passthru definitions |
| */ |
| #define MAX_REQ_SENSE_LEN 0x20 |
| |
| typedef struct { |
| u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
| u8 ars:1; |
| u8 reserved:3; |
| u8 islogical:1; |
| u8 logdrv; /* if islogical == 1 */ |
| u8 channel; /* if islogical == 0 */ |
| u8 target; /* if islogical == 0 */ |
| u8 queuetag; /* unused */ |
| u8 queueaction; /* unused */ |
| u8 cdb[MAX_CDB_LEN]; |
| u8 cdblen; |
| u8 reqsenselen; |
| u8 reqsensearea[MAX_REQ_SENSE_LEN]; |
| u8 numsgelements; |
| u8 scsistatus; |
| u32 dataxferaddr; |
| u32 dataxferlen; |
| } __attribute__ ((packed)) mega_passthru; |
| |
| |
| /* |
| * Extended passthru: support CDB > 10 bytes |
| */ |
| typedef struct { |
| u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
| u8 ars:1; |
| u8 rsvd1:1; |
| u8 cd_rom:1; |
| u8 rsvd2:1; |
| u8 islogical:1; |
| u8 logdrv; /* if islogical == 1 */ |
| u8 channel; /* if islogical == 0 */ |
| u8 target; /* if islogical == 0 */ |
| u8 queuetag; /* unused */ |
| u8 queueaction; /* unused */ |
| u8 cdblen; |
| u8 rsvd3; |
| u8 cdb[MAX_EXT_CDB_LEN]; |
| u8 numsgelements; |
| u8 status; |
| u8 reqsenselen; |
| u8 reqsensearea[MAX_REQ_SENSE_LEN]; |
| u8 rsvd4; |
| u32 dataxferaddr; |
| u32 dataxferlen; |
| } __attribute__ ((packed)) mega_ext_passthru; |
| |
| typedef struct { |
| u64 address; |
| u32 length; |
| } __attribute__ ((packed)) mega_sgl64; |
| |
| typedef struct { |
| u32 address; |
| u32 length; |
| } __attribute__ ((packed)) mega_sglist; |
| |
| |
| /* Queued command data */ |
| typedef struct { |
| int idx; |
| u32 state; |
| struct list_head list; |
| u8 raw_mbox[66]; |
| u32 dma_type; |
| u32 dma_direction; |
| |
| Scsi_Cmnd *cmd; |
| dma_addr_t dma_h_bulkdata; |
| dma_addr_t dma_h_sgdata; |
| |
| mega_sglist *sgl; |
| mega_sgl64 *sgl64; |
| dma_addr_t sgl_dma_addr; |
| |
| mega_passthru *pthru; |
| dma_addr_t pthru_dma_addr; |
| mega_ext_passthru *epthru; |
| dma_addr_t epthru_dma_addr; |
| } scb_t; |
| |
| /* |
| * Flags to follow the scb as it transitions between various stages |
| */ |
| #define SCB_FREE 0x0000 /* on the free list */ |
| #define SCB_ACTIVE 0x0001 /* off the free list */ |
| #define SCB_PENDQ 0x0002 /* on the pending queue */ |
| #define SCB_ISSUED 0x0004 /* issued - owner f/w */ |
| #define SCB_ABORT 0x0008 /* Got an abort for this one */ |
| #define SCB_RESET 0x0010 /* Got a reset for this one */ |
| |
| /* |
| * Utilities declare this strcture size as 1024 bytes. So more fields can |
| * be added in future. |
| */ |
| typedef struct { |
| u32 data_size; /* current size in bytes (not including resvd) */ |
| |
| u32 config_signature; |
| /* Current value is 0x00282008 |
| * 0x28=MAX_LOGICAL_DRIVES, |
| * 0x20=Number of stripes and |
| * 0x08=Number of spans */ |
| |
| u8 fw_version[16]; /* printable ASCI string */ |
| u8 bios_version[16]; /* printable ASCI string */ |
| u8 product_name[80]; /* printable ASCI string */ |
| |
| u8 max_commands; /* Max. concurrent commands supported */ |
| u8 nchannels; /* Number of SCSI Channels detected */ |
| u8 fc_loop_present; /* Number of Fibre Loops detected */ |
| u8 mem_type; /* EDO, FPM, SDRAM etc */ |
| |
| u32 signature; |
| u16 dram_size; /* In terms of MB */ |
| u16 subsysid; |
| |
| u16 subsysvid; |
| u8 notify_counters; |
| u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ |
| } __attribute__ ((packed)) mega_product_info; |
| |
| struct notify { |
| u32 global_counter; /* Any change increments this counter */ |
| |
| u8 param_counter; /* Indicates any params changed */ |
| u8 param_id; /* Param modified - defined below */ |
| u16 param_val; /* New val of last param modified */ |
| |
| u8 write_config_counter; /* write config occurred */ |
| u8 write_config_rsvd[3]; |
| |
| u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ |
| u8 ldrv_opid; /* ldrv num */ |
| u8 ldrv_opcmd; /* ldrv operation - defined below */ |
| u8 ldrv_opstatus; /* status of the operation */ |
| |
| u8 ldrv_state_counter; /* Indicates change of ldrv state */ |
| u8 ldrv_state_id; /* ldrv num */ |
| u8 ldrv_state_new; /* New state */ |
| u8 ldrv_state_old; /* old state */ |
| |
| u8 pdrv_state_counter; /* Indicates change of ldrv state */ |
| u8 pdrv_state_id; /* pdrv id */ |
| u8 pdrv_state_new; /* New state */ |
| u8 pdrv_state_old; /* old state */ |
| |
| u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ |
| u8 pdrv_fmt_id; /* pdrv id */ |
| u8 pdrv_fmt_val; /* format started/over */ |
| u8 pdrv_fmt_rsvd; |
| |
| u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ |
| u8 targ_xfer_id; /* pdrv Id */ |
| u8 targ_xfer_val; /* new Xfer params of last pdrv */ |
| u8 targ_xfer_rsvd; |
| |
| u8 fcloop_id_chg_counter; /* Indicates loopid changed */ |
| u8 fcloopid_pdrvid; /* pdrv id */ |
| u8 fcloop_id0; /* loopid on fc loop 0 */ |
| u8 fcloop_id1; /* loopid on fc loop 1 */ |
| |
| u8 fcloop_state_counter; /* Indicates loop state changed */ |
| u8 fcloop_state0; /* state of fc loop 0 */ |
| u8 fcloop_state1; /* state of fc loop 1 */ |
| u8 fcloop_state_rsvd; |
| } __attribute__ ((packed)); |
| |
| #define MAX_NOTIFY_SIZE 0x80 |
| #define CUR_NOTIFY_SIZE sizeof(struct notify) |
| |
| typedef struct { |
| u32 data_size; /* current size in bytes (not including resvd) */ |
| |
| struct notify notify; |
| |
| u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; |
| |
| u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ |
| u8 cache_flush_interval; /* In terms of Seconds */ |
| u8 sense_alert; |
| u8 drive_insert_count; /* drive insertion count */ |
| |
| u8 battery_status; |
| u8 num_ldrv; /* No. of Log Drives configured */ |
| u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of |
| reconstruct */ |
| u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv |
| Status */ |
| |
| u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ |
| u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; |
| u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ |
| u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ |
| u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; |
| |
| u8 targ_xfer[80]; /* phys device transfer rate */ |
| u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ |
| } __attribute__ ((packed)) mega_inquiry3; |
| |
| |
| /* Structures */ |
| typedef struct { |
| u8 max_commands; /* Max concurrent commands supported */ |
| u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ |
| u8 max_targ_per_chan; /* Max targ per channel */ |
| u8 nchannels; /* Number of channels on HBA */ |
| u8 fw_version[4]; /* Firmware version */ |
| u16 age_of_flash; /* Number of times FW has been flashed */ |
| u8 chip_set_value; /* Contents of 0xC0000832 */ |
| u8 dram_size; /* In MB */ |
| u8 cache_flush_interval; /* in seconds */ |
| u8 bios_version[4]; |
| u8 board_type; |
| u8 sense_alert; |
| u8 write_config_count; /* Increase with every configuration |
| change */ |
| u8 drive_inserted_count; /* Increase with every drive inserted |
| */ |
| u8 inserted_drive; /* Channel:Id of inserted drive */ |
| u8 battery_status; /* |
| * BIT 0: battery module missing |
| * BIT 1: VBAD |
| * BIT 2: temperature high |
| * BIT 3: battery pack missing |
| * BIT 4,5: |
| * 00 - charge complete |
| * 01 - fast charge in progress |
| * 10 - fast charge fail |
| * 11 - undefined |
| * Bit 6: counter > 1000 |
| * Bit 7: Undefined |
| */ |
| u8 dec_fault_bus_info; |
| } __attribute__ ((packed)) mega_adp_info; |
| |
| |
| typedef struct { |
| u8 num_ldrv; /* Number of logical drives configured */ |
| u8 rsvd[3]; |
| u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; |
| u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; |
| u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; |
| } __attribute__ ((packed)) mega_ldrv_info; |
| |
| typedef struct { |
| u8 pdrv_state[MAX_PHYSICAL_DRIVES]; |
| u8 rsvd; |
| } __attribute__ ((packed)) mega_pdrv_info; |
| |
| /* RAID inquiry: Mailbox command 0x05*/ |
| typedef struct { |
| mega_adp_info adapter_info; |
| mega_ldrv_info logdrv_info; |
| mega_pdrv_info pdrv_info; |
| } __attribute__ ((packed)) mraid_inquiry; |
| |
| |
| /* RAID extended inquiry: Mailbox command 0x04*/ |
| typedef struct { |
| mraid_inquiry raid_inq; |
| u16 phys_drv_format[MAX_CHANNELS]; |
| u8 stack_attn; |
| u8 modem_status; |
| u8 rsvd[2]; |
| } __attribute__ ((packed)) mraid_ext_inquiry; |
| |
| |
| typedef struct { |
| u8 channel; |
| u8 target; |
| }__attribute__ ((packed)) adp_device; |
| |
| typedef struct { |
| u32 start_blk; /* starting block */ |
| u32 num_blks; /* # of blocks */ |
| adp_device device[MAX_ROW_SIZE_40LD]; |
| }__attribute__ ((packed)) adp_span_40ld; |
| |
| typedef struct { |
| u32 start_blk; /* starting block */ |
| u32 num_blks; /* # of blocks */ |
| adp_device device[MAX_ROW_SIZE_8LD]; |
| }__attribute__ ((packed)) adp_span_8ld; |
| |
| typedef struct { |
| u8 span_depth; /* Total # of spans */ |
| u8 level; /* RAID level */ |
| u8 read_ahead; /* read ahead, no read ahead, adaptive read |
| ahead */ |
| u8 stripe_sz; /* Encoded stripe size */ |
| u8 status; /* Status of the logical drive */ |
| u8 write_mode; /* write mode, write_through/write_back */ |
| u8 direct_io; /* direct io or through cache */ |
| u8 row_size; /* Number of stripes in a row */ |
| } __attribute__ ((packed)) logdrv_param; |
| |
| typedef struct { |
| logdrv_param lparam; |
| adp_span_40ld span[MAX_SPAN_DEPTH]; |
| }__attribute__ ((packed)) logdrv_40ld; |
| |
| typedef struct { |
| logdrv_param lparam; |
| adp_span_8ld span[MAX_SPAN_DEPTH]; |
| }__attribute__ ((packed)) logdrv_8ld; |
| |
| typedef struct { |
| u8 type; /* Type of the device */ |
| u8 cur_status; /* current status of the device */ |
| u8 tag_depth; /* Level of tagging */ |
| u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ |
| u32 size; /* configurable size in terms of 512 byte |
| blocks */ |
| }__attribute__ ((packed)) phys_drv; |
| |
| typedef struct { |
| u8 nlog_drives; /* number of logical drives */ |
| u8 resvd[3]; |
| logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; |
| phys_drv pdrv[MAX_PHYSICAL_DRIVES]; |
| }__attribute__ ((packed)) disk_array_40ld; |
| |
| typedef struct { |
| u8 nlog_drives; /* number of logical drives */ |
| u8 resvd[3]; |
| logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; |
| phys_drv pdrv[MAX_PHYSICAL_DRIVES]; |
| }__attribute__ ((packed)) 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 4096 |
| |
| struct uioctl_t { |
| u32 inlen; |
| u32 outlen; |
| union { |
| u8 fca[16]; |
| struct { |
| u8 opcode; |
| u8 subopcode; |
| u16 adapno; |
| #if BITS_PER_LONG == 32 |
| u8 *buffer; |
| u8 pad[4]; |
| #endif |
| #if BITS_PER_LONG == 64 |
| u8 *buffer; |
| #endif |
| u32 length; |
| } __attribute__ ((packed)) fcs; |
| } __attribute__ ((packed)) ui; |
| u8 mbox[18]; /* 16 bytes + 2 status bytes */ |
| mega_passthru pthru; |
| #if BITS_PER_LONG == 32 |
| char __user *data; /* buffer <= 4096 for 0x80 commands */ |
| char pad[4]; |
| #endif |
| #if BITS_PER_LONG == 64 |
| char __user *data; |
| #endif |
| } __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 32 |
| |
| struct mcontroller { |
| u64 base; |
| u8 irq; |
| u8 numldrv; |
| u8 pcibus; |
| u16 pcidev; |
| u8 pcifun; |
| u16 pciid; |
| u16 pcivendor; |
| u8 pcislot; |
| u32 uid; |
| }; |
| |
| /* |
| * mailbox structure used for internal commands |
| */ |
| typedef struct { |
| u8 cmd; |
| u8 cmdid; |
| u8 opcode; |
| u8 subopcode; |
| u32 lba; |
| u32 xferaddr; |
| u8 logdrv; |
| u8 rsvd[3]; |
| u8 numstatus; |
| u8 status; |
| } __attribute__ ((packed)) megacmd_t; |
| |
| /* |
| * Defines for Driver IOCTL interface |
| */ |
| #define MEGAIOC_MAGIC 'm' |
| |
| #define MEGAIOC_QNADAP 'm' /* Query # of adapters */ |
| #define MEGAIOC_QDRVRVER 'e' /* Query driver version */ |
| #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ |
| #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) |
| #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) |
| |
| /* |
| * Definition for the new ioctl interface (NIT) |
| */ |
| |
| /* |
| * Vendor specific Group-7 commands |
| */ |
| #define VENDOR_SPECIFIC_COMMANDS 0xE0 |
| #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 |
| |
| /* |
| * The ioctl command. No other command shall be used for this interface |
| */ |
| #define USCSICMD VENDOR_SPECIFIC_COMMANDS |
| |
| /* |
| * Data direction flags |
| */ |
| #define UIOC_RD 0x00001 |
| #define UIOC_WR 0x00002 |
| |
| /* |
| * ioctl opcodes |
| */ |
| #define MBOX_CMD 0x00000 /* DCMD or passthru command */ |
| #define GET_DRIVER_VER 0x10000 /* Get driver version */ |
| #define GET_N_ADAP 0x20000 /* Get number of adapters */ |
| #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ |
| #define GET_CAP 0x40000 /* Get ioctl capabilities */ |
| #define GET_STATS 0x50000 /* Get statistics, including error info */ |
| |
| |
| /* |
| * 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. |
| */ |
| typedef struct { |
| char signature[8]; /* Must contain "MEGANIT" */ |
| u32 opcode; /* opcode for the command */ |
| u32 adapno; /* adapter number */ |
| union { |
| u8 __raw_mbox[18]; |
| void __user *__uaddr; /* xferaddr for non-mbox cmds */ |
| }__ua; |
| |
| #define uioc_rmbox __ua.__raw_mbox |
| #define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) |
| #define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) |
| #define uioc_uaddr __ua.__uaddr |
| |
| u32 xferlen; /* xferlen for DCMD and non-mbox |
| commands */ |
| u32 flags; /* data direction flags */ |
| }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. |
| */ |
| typedef struct { |
| int num_ldrv; /* Number for logical drives for which the |
| status should be reported. */ |
| u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for |
| each logical drive */ |
| u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks |
| read for each logical |
| drive */ |
| u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes |
| for each logical |
| drive */ |
| u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks |
| writes for each |
| logical drive */ |
| u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read |
| errors for each |
| logical drive */ |
| u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write |
| errors for each |
| logical drive */ |
| }megastat_t; |
| |
| |
| struct private_bios_data { |
| u8 geometry:4; /* |
| * bits 0-3 - BIOS geometry |
| * 0x0001 - 1GB |
| * 0x0010 - 2GB |
| * 0x1000 - 8GB |
| * Others values are invalid |
| */ |
| u8 unused:4; /* bits 4-7 are unused */ |
| u8 boot_drv; /* |
| * logical drive set as boot drive |
| * 0..7 - for 8LD cards |
| * 0..39 - for 40LD cards |
| */ |
| u8 rsvd[12]; |
| u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ |
| } __attribute__ ((packed)); |
| |
| |
| |
| |
| /* |
| * Mailbox and firmware commands and subopcodes used in this driver. |
| */ |
| |
| #define MEGA_MBOXCMD_LREAD 0x01 |
| #define MEGA_MBOXCMD_LWRITE 0x02 |
| #define MEGA_MBOXCMD_PASSTHRU 0x03 |
| #define MEGA_MBOXCMD_ADPEXTINQ 0x04 |
| #define MEGA_MBOXCMD_ADAPTERINQ 0x05 |
| #define MEGA_MBOXCMD_LREAD64 0xA7 |
| #define MEGA_MBOXCMD_LWRITE64 0xA8 |
| #define MEGA_MBOXCMD_PASSTHRU64 0xC3 |
| #define MEGA_MBOXCMD_EXTPTHRU 0xE3 |
| |
| #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ |
| #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ |
| |
| #define FC_NEW_CONFIG 0xA1 |
| #define NC_SUBOP_PRODUCT_INFO 0x0E |
| #define NC_SUBOP_ENQUIRY3 0x0F |
| #define ENQ3_GET_SOLICITED_FULL 0x02 |
| #define OP_DCMD_READ_CONFIG 0x04 |
| #define NEW_READ_CONFIG_8LD 0x67 |
| #define READ_CONFIG_8LD 0x07 |
| #define FLUSH_ADAPTER 0x0A |
| #define FLUSH_SYSTEM 0xFE |
| |
| /* |
| * Command for random deletion of logical drives |
| */ |
| #define FC_DEL_LOGDRV 0xA4 /* f/w command */ |
| #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ |
| #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ |
| #define OP_DEL_LOGDRV 0x1C /* delete logical drive */ |
| |
| /* |
| * BIOS commands |
| */ |
| #define IS_BIOS_ENABLED 0x62 |
| #define GET_BIOS 0x01 |
| #define CHNL_CLASS 0xA9 |
| #define GET_CHNL_CLASS 0x00 |
| #define SET_CHNL_CLASS 0x01 |
| #define CH_RAID 0x01 |
| #define CH_SCSI 0x00 |
| #define BIOS_PVT_DATA 0x40 |
| #define GET_BIOS_PVT_DATA 0x00 |
| |
| |
| /* |
| * Commands to support clustering |
| */ |
| #define MEGA_GET_TARGET_ID 0x7D |
| #define MEGA_CLUSTER_OP 0x70 |
| #define MEGA_GET_CLUSTER_MODE 0x02 |
| #define MEGA_CLUSTER_CMD 0x6E |
| #define MEGA_RESERVE_LD 0x01 |
| #define MEGA_RELEASE_LD 0x02 |
| #define MEGA_RESET_RESERVATIONS 0x03 |
| #define MEGA_RESERVATION_STATUS 0x04 |
| #define MEGA_RESERVE_PD 0x05 |
| #define MEGA_RELEASE_PD 0x06 |
| |
| |
| /* |
| * Module battery status |
| */ |
| #define MEGA_BATT_MODULE_MISSING 0x01 |
| #define MEGA_BATT_LOW_VOLTAGE 0x02 |
| #define MEGA_BATT_TEMP_HIGH 0x04 |
| #define MEGA_BATT_PACK_MISSING 0x08 |
| #define MEGA_BATT_CHARGE_MASK 0x30 |
| #define MEGA_BATT_CHARGE_DONE 0x00 |
| #define MEGA_BATT_CHARGE_INPROG 0x10 |
| #define MEGA_BATT_CHARGE_FAIL 0x20 |
| #define MEGA_BATT_CYCLES_EXCEEDED 0x40 |
| |
| /* |
| * Physical drive states. |
| */ |
| #define PDRV_UNCNF 0 |
| #define PDRV_ONLINE 3 |
| #define PDRV_FAILED 4 |
| #define PDRV_RBLD 5 |
| #define PDRV_HOTSPARE 6 |
| |
| |
| /* |
| * Raid logical drive states. |
| */ |
| #define RDRV_OFFLINE 0 |
| #define RDRV_DEGRADED 1 |
| #define RDRV_OPTIMAL 2 |
| #define RDRV_DELETED 3 |
| |
| /* |
| * Read, write and cache policies |
| */ |
| #define NO_READ_AHEAD 0 |
| #define READ_AHEAD 1 |
| #define ADAP_READ_AHEAD 2 |
| #define WRMODE_WRITE_THRU 0 |
| #define WRMODE_WRITE_BACK 1 |
| #define CACHED_IO 0 |
| #define DIRECT_IO 1 |
| |
| |
| #define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp)) |
| |
| /* |
| * Each controller's soft state |
| */ |
| typedef struct { |
| int this_id; /* our id, may set to different than 7 if |
| clustering is available */ |
| u32 flag; |
| |
| unsigned long base; |
| void __iomem *mmio_base; |
| |
| /* mbox64 with mbox not aligned on 16-byte boundary */ |
| mbox64_t *una_mbox64; |
| dma_addr_t una_mbox64_dma; |
| |
| volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ |
| volatile mbox_t *mbox; /* ptr to standard mailbox */ |
| dma_addr_t mbox_dma; |
| |
| struct pci_dev *dev; |
| |
| struct list_head free_list; |
| struct list_head pending_list; |
| struct list_head completed_list; |
| |
| struct Scsi_Host *host; |
| |
| #define MEGA_BUFFER_SIZE (2*1024) |
| u8 *mega_buffer; |
| dma_addr_t buf_dma_handle; |
| |
| mega_product_info product_info; |
| |
| u8 max_cmds; |
| scb_t *scb_list; |
| |
| atomic_t pend_cmds; /* maintain a counter for pending |
| commands in firmware */ |
| |
| #if MEGA_HAVE_STATS |
| u32 nreads[MAX_LOGICAL_DRIVES_40LD]; |
| u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; |
| u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; |
| u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; |
| u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; |
| u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; |
| #endif |
| |
| /* Host adapter parameters */ |
| u8 numldrv; |
| u8 fw_version[7]; |
| u8 bios_version[7]; |
| |
| #ifdef CONFIG_PROC_FS |
| struct proc_dir_entry *controller_proc_dir_entry; |
| #endif |
| |
| int has_64bit_addr; /* are we using 64-bit addressing */ |
| int support_ext_cdb; |
| int boot_ldrv_enabled; |
| int boot_ldrv; |
| int boot_pdrv_enabled; /* boot from physical drive */ |
| int boot_pdrv_ch; /* boot physical drive channel */ |
| int boot_pdrv_tgt; /* boot physical drive target */ |
| |
| |
| int support_random_del; /* Do we support random deletion of |
| logdrvs */ |
| int read_ldidmap; /* set after logical drive deltion. The |
| logical drive number must be read from the |
| map */ |
| atomic_t quiescent; /* a stage reached when delete logical |
| drive needs to be done. Stop |
| sending requests to the hba till |
| delete operation is completed */ |
| spinlock_t lock; |
| |
| u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on |
| what channels. */ |
| int mega_ch_class; |
| |
| u8 sglen; /* f/w supported scatter-gather list length */ |
| |
| scb_t int_scb; |
| struct mutex int_mtx; /* To synchronize the internal |
| commands */ |
| int int_status; /* status of internal cmd */ |
| struct completion int_waitq; /* wait queue for internal |
| cmds */ |
| |
| int has_cluster; /* cluster support on this HBA */ |
| }adapter_t; |
| |
| |
| struct mega_hbas { |
| int is_bios_enabled; |
| adapter_t *hostdata_addr; |
| }; |
| |
| |
| /* |
| * For state flag. Do not use LSB(8 bits) which are |
| * reserved for storing info about channels. |
| */ |
| #define IN_ABORT 0x80000000L |
| #define IN_RESET 0x40000000L |
| #define BOARD_MEMMAP 0x20000000L |
| #define BOARD_IOMAP 0x10000000L |
| #define BOARD_40LD 0x08000000L |
| #define BOARD_64BIT 0x04000000L |
| |
| #define INTR_VALID 0x40 |
| |
| #define PCI_CONF_AMISIG 0xa0 |
| #define PCI_CONF_AMISIG64 0xa4 |
| |
| |
| #define MEGA_DMA_TYPE_NONE 0xFFFF |
| #define MEGA_BULK_DATA 0x0001 |
| #define MEGA_SGLIST 0x0002 |
| |
| /* |
| * Parameters for the io-mapped controllers |
| */ |
| |
| /* I/O Port offsets */ |
| #define CMD_PORT 0x00 |
| #define ACK_PORT 0x00 |
| #define TOGGLE_PORT 0x01 |
| #define INTR_PORT 0x0a |
| |
| #define MBOX_BUSY_PORT 0x00 |
| #define MBOX_PORT0 0x04 |
| #define MBOX_PORT1 0x05 |
| #define MBOX_PORT2 0x06 |
| #define MBOX_PORT3 0x07 |
| #define ENABLE_MBOX_REGION 0x0B |
| |
| /* I/O Port Values */ |
| #define ISSUE_BYTE 0x10 |
| #define ACK_BYTE 0x08 |
| #define ENABLE_INTR_BYTE 0xc0 |
| #define DISABLE_INTR_BYTE 0x00 |
| #define VALID_INTR_BYTE 0x40 |
| #define MBOX_BUSY_BYTE 0x10 |
| #define ENABLE_MBOX_BYTE 0x00 |
| |
| |
| /* Setup some port macros here */ |
| #define issue_command(adapter) \ |
| outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) |
| |
| #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) |
| |
| #define set_irq_state(adapter, value) \ |
| outb_p((value), (adapter)->base + INTR_PORT) |
| |
| #define irq_ack(adapter) \ |
| outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) |
| |
| #define irq_enable(adapter) \ |
| outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) |
| |
| #define irq_disable(adapter) \ |
| outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) |
| |
| |
| /* |
| * 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 *, 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(Scsi_Cmnd *); |
| static int megaraid_reset(Scsi_Cmnd *); |
| static int megaraid_abort_and_reset(adapter_t *, 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 *, |
| Scsi_Cmnd *, int, int); |
| static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, |
| scb_t *, 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: */ |
