| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Atul Mukker | 2027 | 65.26% | 1 | 2.00% |
| Linus Torvalds (pre-git) | 481 | 15.49% | 24 | 48.00% |
| Linus Torvalds | 446 | 14.36% | 4 | 8.00% |
| Bart Van Assche | 74 | 2.38% | 1 | 2.00% |
| Mark Haverkamp | 15 | 0.48% | 1 | 2.00% |
| Johannes Thumshirn | 14 | 0.45% | 1 | 2.00% |
| Al Viro | 12 | 0.39% | 3 | 6.00% |
| Christoph Hellwig | 10 | 0.32% | 3 | 6.00% |
| Jeff Garzik | 9 | 0.29% | 2 | 4.00% |
| Arjan van de Ven | 4 | 0.13% | 1 | 2.00% |
| Matthew Dharm | 3 | 0.10% | 1 | 2.00% |
| James Bottomley | 2 | 0.06% | 1 | 2.00% |
| Walter Harms | 2 | 0.06% | 1 | 2.00% |
| Lucas De Marchi | 2 | 0.06% | 1 | 2.00% |
| André Goddard Rosa | 1 | 0.03% | 1 | 2.00% |
| Seokmann Ju | 1 | 0.03% | 1 | 2.00% |
| Thadeu Lima de Souza Cascardo | 1 | 0.03% | 1 | 2.00% |
| Greg Kroah-Hartman | 1 | 0.03% | 1 | 2.00% |
| Uwe Kleine-König | 1 | 0.03% | 1 | 2.00% |
| Total | 3106 | 50 |
/* 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 \ "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; struct 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 struct megaraid_cmd_priv { struct list_head entry; }; #define SCSI_LIST(scp) \ (&((struct megaraid_cmd_priv *)scsi_cmd_priv(scp))->entry) struct scsi_cmd_and_priv { struct scsi_cmnd cmd; struct megaraid_cmd_priv priv; }; static inline struct scsi_cmnd * megaraid_to_scsi_cmd(struct megaraid_cmd_priv *cmd_priv) { /* See also scsi_mq_setup_tags() */ BUILD_BUG_ON(sizeof(struct scsi_cmd_and_priv) != sizeof(struct scsi_cmnd) + sizeof(struct megaraid_cmd_priv)); return &container_of(cmd_priv, struct scsi_cmd_and_priv, priv)->cmd; } /* * 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 *, 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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