[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>
diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
new file mode 100644
index 0000000..12d7138
--- /dev/null
+++ b/drivers/scsi/hpsa_cmd.h
@@ -0,0 +1,326 @@
+/*
+ * 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 */