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linux/drivers/scsi/hpsa_cmd.h
Stephen M. Cameron edd163687e [SCSI] hpsa: add driver for HP Smart Array controllers. 
This driver supports a subset of HP Smart Array Controllers.
It is a SCSI alternative to the cciss driver.

[akpm@linux-foundation.org: avoid helpful cleanup patches]
[achiang@hp.com: make device attrs static]
[akpm@linux-foundation.org: msleep() does set_current_state() itself]
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Mike Miller <mikem@beardog.cce.hp.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-10 09:55:00 -06:00

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/*
* Disk Array driver for HP Smart Array SAS controllers
* Copyright 2000, 2009 Hewlett-Packard Development Company, L.P.
*
* 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; version 2 of the License.
*
* 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, GOOD TITLE or
* NON INFRINGEMENT. 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Questions/Comments/Bugfixes to iss_storagedev@hp.com
*
*/
#ifndef HPSA_CMD_H
#define HPSA_CMD_H
/* general boundary defintions */
#define SENSEINFOBYTES 32 /* may vary between hbas */
#define MAXSGENTRIES 31
#define MAXREPLYQS 256
/* Command Status value */
#define CMD_SUCCESS 0x0000
#define CMD_TARGET_STATUS 0x0001
#define CMD_DATA_UNDERRUN 0x0002
#define CMD_DATA_OVERRUN 0x0003
#define CMD_INVALID 0x0004
#define CMD_PROTOCOL_ERR 0x0005
#define CMD_HARDWARE_ERR 0x0006
#define CMD_CONNECTION_LOST 0x0007
#define CMD_ABORTED 0x0008
#define CMD_ABORT_FAILED 0x0009
#define CMD_UNSOLICITED_ABORT 0x000A
#define CMD_TIMEOUT 0x000B
#define CMD_UNABORTABLE 0x000C
/* Unit Attentions ASC's as defined for the MSA2012sa */
#define POWER_OR_RESET 0x29
#define STATE_CHANGED 0x2a
#define UNIT_ATTENTION_CLEARED 0x2f
#define LUN_FAILED 0x3e
#define REPORT_LUNS_CHANGED 0x3f
/* Unit Attentions ASCQ's as defined for the MSA2012sa */
/* These ASCQ's defined for ASC = POWER_OR_RESET */
#define POWER_ON_RESET 0x00
#define POWER_ON_REBOOT 0x01
#define SCSI_BUS_RESET 0x02
#define MSA_TARGET_RESET 0x03
#define CONTROLLER_FAILOVER 0x04
#define TRANSCEIVER_SE 0x05
#define TRANSCEIVER_LVD 0x06
/* These ASCQ's defined for ASC = STATE_CHANGED */
#define RESERVATION_PREEMPTED 0x03
#define ASYM_ACCESS_CHANGED 0x06
#define LUN_CAPACITY_CHANGED 0x09
/* transfer direction */
#define XFER_NONE 0x00
#define XFER_WRITE 0x01
#define XFER_READ 0x02
#define XFER_RSVD 0x03
/* task attribute */
#define ATTR_UNTAGGED 0x00
#define ATTR_SIMPLE 0x04
#define ATTR_HEADOFQUEUE 0x05
#define ATTR_ORDERED 0x06
#define ATTR_ACA 0x07
/* cdb type */
#define TYPE_CMD 0x00
#define TYPE_MSG 0x01
/* config space register offsets */
#define CFG_VENDORID 0x00
#define CFG_DEVICEID 0x02
#define CFG_I2OBAR 0x10
#define CFG_MEM1BAR 0x14
/* i2o space register offsets */
#define I2O_IBDB_SET 0x20
#define I2O_IBDB_CLEAR 0x70
#define I2O_INT_STATUS 0x30
#define I2O_INT_MASK 0x34
#define I2O_IBPOST_Q 0x40
#define I2O_OBPOST_Q 0x44
#define I2O_DMA1_CFG 0x214
/* Configuration Table */
#define CFGTBL_ChangeReq 0x00000001l
#define CFGTBL_AccCmds 0x00000001l
#define CFGTBL_Trans_Simple 0x00000002l
#define CFGTBL_BusType_Ultra2 0x00000001l
#define CFGTBL_BusType_Ultra3 0x00000002l
#define CFGTBL_BusType_Fibre1G 0x00000100l
#define CFGTBL_BusType_Fibre2G 0x00000200l
struct vals32 {
__u32 lower;
__u32 upper;
};
union u64bit {
struct vals32 val32;
__u64 val;
};
/* FIXME this is a per controller value (barf!) */
#define HPSA_MAX_TARGETS_PER_CTLR 16
#define HPSA_MAX_LUN 256
#define HPSA_MAX_PHYS_LUN 1024
/* SCSI-3 Commands */
#pragma pack(1)
#define HPSA_INQUIRY 0x12
struct InquiryData {
__u8 data_byte[36];
};
#define HPSA_REPORT_LOG 0xc2 /* Report Logical LUNs */
#define HPSA_REPORT_PHYS 0xc3 /* Report Physical LUNs */
struct ReportLUNdata {
__u8 LUNListLength[4];
__u32 reserved;
__u8 LUN[HPSA_MAX_LUN][8];
};
struct ReportExtendedLUNdata {
__u8 LUNListLength[4];
__u8 extended_response_flag;
__u8 reserved[3];
__u8 LUN[HPSA_MAX_LUN][24];
};
struct SenseSubsystem_info {
__u8 reserved[36];
__u8 portname[8];
__u8 reserved1[1108];
};
#define HPSA_READ_CAPACITY 0x25 /* Read Capacity */
struct ReadCapdata {
__u8 total_size[4]; /* Total size in blocks */
__u8 block_size[4]; /* Size of blocks in bytes */
};
#if 0
/* 12 byte commands not implemented in firmware yet. */
#define HPSA_READ 0xa8
#define HPSA_WRITE 0xaa
#endif
#define HPSA_READ 0x28 /* Read(10) */
#define HPSA_WRITE 0x2a /* Write(10) */
/* BMIC commands */
#define BMIC_READ 0x26
#define BMIC_WRITE 0x27
#define BMIC_CACHE_FLUSH 0xc2
#define HPSA_CACHE_FLUSH 0x01 /* C2 was already being used by HPSA */
/* Command List Structure */
union SCSI3Addr {
struct {
__u8 Dev;
__u8 Bus:6;
__u8 Mode:2; /* b00 */
} PeripDev;
struct {
__u8 DevLSB;
__u8 DevMSB:6;
__u8 Mode:2; /* b01 */
} LogDev;
struct {
__u8 Dev:5;
__u8 Bus:3;
__u8 Targ:6;
__u8 Mode:2; /* b10 */
} LogUnit;
};
struct PhysDevAddr {
__u32 TargetId:24;
__u32 Bus:6;
__u32 Mode:2;
/* 2 level target device addr */
union SCSI3Addr Target[2];
};
struct LogDevAddr {
__u32 VolId:30;
__u32 Mode:2;
__u8 reserved[4];
};
union LUNAddr {
__u8 LunAddrBytes[8];
union SCSI3Addr SCSI3Lun[4];
struct PhysDevAddr PhysDev;
struct LogDevAddr LogDev;
};
struct CommandListHeader {
__u8 ReplyQueue;
__u8 SGList;
__u16 SGTotal;
struct vals32 Tag;
union LUNAddr LUN;
};
struct RequestBlock {
__u8 CDBLen;
struct {
__u8 Type:3;
__u8 Attribute:3;
__u8 Direction:2;
} Type;
__u16 Timeout;
__u8 CDB[16];
};
struct ErrDescriptor {
struct vals32 Addr;
__u32 Len;
};
struct SGDescriptor {
struct vals32 Addr;
__u32 Len;
__u32 Ext;
};
union MoreErrInfo {
struct {
__u8 Reserved[3];
__u8 Type;
__u32 ErrorInfo;
} Common_Info;
struct {
__u8 Reserved[2];
__u8 offense_size; /* size of offending entry */
__u8 offense_num; /* byte # of offense 0-base */
__u32 offense_value;
} Invalid_Cmd;
};
struct ErrorInfo {
__u8 ScsiStatus;
__u8 SenseLen;
__u16 CommandStatus;
__u32 ResidualCnt;
union MoreErrInfo MoreErrInfo;
__u8 SenseInfo[SENSEINFOBYTES];
};
/* Command types */
#define CMD_IOCTL_PEND 0x01
#define CMD_SCSI 0x03
struct ctlr_info; /* defined in hpsa.h */
/* The size of this structure needs to be divisible by 8
* od on all architectures, because the controller uses 2
* lower bits of the address, and the driver uses 1 lower
* bit (3 bits total.)
*/
struct CommandList {
struct CommandListHeader Header;
struct RequestBlock Request;
struct ErrDescriptor ErrDesc;
struct SGDescriptor SG[MAXSGENTRIES];
/* information associated with the command */
__u32 busaddr; /* physical addr of this record */
struct ErrorInfo *err_info; /* pointer to the allocated mem */
struct ctlr_info *h;
int cmd_type;
long cmdindex;
struct hlist_node list;
struct CommandList *prev;
struct CommandList *next;
struct request *rq;
struct completion *waiting;
int retry_count;
void *scsi_cmd;
};
/* Configuration Table Structure */
struct HostWrite {
__u32 TransportRequest;
__u32 Reserved;
__u32 CoalIntDelay;
__u32 CoalIntCount;
};
struct CfgTable {
__u8 Signature[4];
__u32 SpecValence;
__u32 TransportSupport;
__u32 TransportActive;
struct HostWrite HostWrite;
__u32 CmdsOutMax;
__u32 BusTypes;
__u32 Reserved;
__u8 ServerName[16];
__u32 HeartBeat;
__u32 SCSI_Prefetch;
};
struct hpsa_pci_info {
unsigned char bus;
unsigned char dev_fn;
unsigned short domain;
__u32 board_id;
};
#pragma pack()
#endif /* HPSA_CMD_H */
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