1695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 2695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * This header file contains public constants and structures used by 38c8c2a287339ff470bdb716bdcebc5f5a6cbac5cChristopher Ferris * the SCSI initiator code. 4695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 5695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#ifndef _SCSI_SCSI_H 6695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define _SCSI_SCSI_H 7695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 8695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#include <linux/types.h> 9695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#include <linux/scatterlist.h> 10695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#include <linux/kernel.h> 118c8c2a287339ff470bdb716bdcebc5f5a6cbac5cChristopher Ferris#include <scsi/scsi_common.h> 128c8c2a287339ff470bdb716bdcebc5f5a6cbac5cChristopher Ferris#include <scsi/scsi_proto.h> 13695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 14695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannstruct scsi_cmnd; 15695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 16695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannenum scsi_timeouts { 17695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann SCSI_DEFAULT_EH_TIMEOUT = 10 * HZ, 18695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann}; 19695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 20695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 21695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * DIX-capable adapters effectively support infinite chaining for the 22695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * protection information scatterlist 23695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 24695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_MAX_PROT_SG_SEGMENTS 0xFFFF 25695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 26695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 27695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Special value for scanning to specify scanning or rescanning of all 28695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * possible channels, (target) ids, or luns on a given shost. 29695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 30695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCAN_WILD_CARD ~0 31695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 32695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#ifdef CONFIG_ACPI 33695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannstruct acpi_bus_type; 34695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 35695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannextern int 36695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannscsi_register_acpi_bus_type(struct acpi_bus_type *bus); 37695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 38695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannextern void 39695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannscsi_unregister_acpi_bus_type(struct acpi_bus_type *bus); 40695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#endif 41695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 42695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/** scsi_status_is_good - check the status return. 43695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * 44695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * @status: the status passed up from the driver (including host and 45695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * driver components) 46695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * 47695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * This returns true for known good conditions that may be treated as 48695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * command completed normally 49695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 50695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannstatic inline int scsi_status_is_good(int status) 51695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann{ 52695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann /* 53695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * FIXME: bit0 is listed as reserved in SCSI-2, but is 54695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * significant in SCSI-3. For now, we follow the SCSI-2 55695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * behaviour and ignore reserved bits. 56695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 57695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann status &= 0xfe; 58695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann return ((status == SAM_STAT_GOOD) || 59695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann (status == SAM_STAT_INTERMEDIATE) || 60695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann (status == SAM_STAT_INTERMEDIATE_CONDITION_MET) || 61695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann /* FIXME: this is obsolete in SAM-3 */ 62695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann (status == SAM_STAT_COMMAND_TERMINATED)); 63695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann} 64695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 65695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 66695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 67695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * standard mode-select header prepended to all mode-select commands 68695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 69695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 70695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannstruct ccs_modesel_head { 71695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 _r1; /* reserved */ 72695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 medium; /* device-specific medium type */ 73695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 _r2; /* reserved */ 74695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 block_desc_length; /* block descriptor length */ 75695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 density; /* device-specific density code */ 76695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 number_blocks_hi; /* number of blocks in this block desc */ 77695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 number_blocks_med; 78695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 number_blocks_lo; 79695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 _r3; 80695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 block_length_hi; /* block length for blocks in this desc */ 81695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 block_length_med; 82695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann __u8 block_length_lo; 83695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann}; 84695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 85695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 86695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * The Well Known LUNS (SAM-3) in our int representation of a LUN 87695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 88695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_W_LUN_BASE 0xc100 89695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_W_LUN_REPORT_LUNS (SCSI_W_LUN_BASE + 1) 90695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_W_LUN_ACCESS_CONTROL (SCSI_W_LUN_BASE + 2) 91695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_W_LUN_TARGET_LOG_PAGE (SCSI_W_LUN_BASE + 3) 92695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 93695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannstatic inline int scsi_is_wlun(u64 lun) 94695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann{ 95695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann return (lun & 0xff00) == SCSI_W_LUN_BASE; 96695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann} 97695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 98695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 99695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 100695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * MESSAGE CODES 101695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 102695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 103695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define COMMAND_COMPLETE 0x00 104695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_MESSAGE 0x01 105695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_MODIFY_DATA_POINTER 0x00 106695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_SDTR 0x01 107695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */ 108695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_WDTR 0x03 109695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_PPR 0x04 110695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05 111695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SAVE_POINTERS 0x02 112695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define RESTORE_POINTERS 0x03 113695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DISCONNECT 0x04 114695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define INITIATOR_ERROR 0x05 115695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define ABORT_TASK_SET 0x06 116695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define MESSAGE_REJECT 0x07 117695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define NOP 0x08 118695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define MSG_PARITY_ERROR 0x09 119695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define LINKED_CMD_COMPLETE 0x0a 120695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define LINKED_FLG_CMD_COMPLETE 0x0b 121695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define TARGET_RESET 0x0c 122695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define ABORT_TASK 0x0d 123695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define CLEAR_TASK_SET 0x0e 124695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define INITIATE_RECOVERY 0x0f /* SCSI-II only */ 125695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define RELEASE_RECOVERY 0x10 /* SCSI-II only */ 126695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define CLEAR_ACA 0x16 127695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define LOGICAL_UNIT_RESET 0x17 128695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SIMPLE_QUEUE_TAG 0x20 129695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define HEAD_OF_QUEUE_TAG 0x21 130695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define ORDERED_QUEUE_TAG 0x22 131695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define IGNORE_WIDE_RESIDUE 0x23 132695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define ACA 0x24 133695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define QAS_REQUEST 0x55 134695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 135695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* Old SCSI2 names, don't use in new code */ 136695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define BUS_DEVICE_RESET TARGET_RESET 137695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define ABORT ABORT_TASK_SET 138695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 139695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 140695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Host byte codes 141695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 142695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 143695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_OK 0x00 /* NO error */ 144695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_NO_CONNECT 0x01 /* Couldn't connect before timeout period */ 145695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_BUS_BUSY 0x02 /* BUS stayed busy through time out period */ 146695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_TIME_OUT 0x03 /* TIMED OUT for other reason */ 147695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_BAD_TARGET 0x04 /* BAD target. */ 148695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_ABORT 0x05 /* Told to abort for some other reason */ 149695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_PARITY 0x06 /* Parity error */ 150695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_ERROR 0x07 /* Internal error */ 151695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_RESET 0x08 /* Reset by somebody. */ 152695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_BAD_INTR 0x09 /* Got an interrupt we weren't expecting. */ 153695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */ 154695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_SOFT_ERROR 0x0b /* The low level driver just wish a retry */ 155695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_IMM_RETRY 0x0c /* Retry without decrementing retry count */ 156695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_REQUEUE 0x0d /* Requeue command (no immediate retry) also 157695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * without decrementing the retry count */ 158695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_TRANSPORT_DISRUPTED 0x0e /* Transport error disrupted execution 159695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * and the driver blocked the port to 160695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * recover the link. Transport class will 161695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * retry or fail IO */ 162695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_TRANSPORT_FAILFAST 0x0f /* Transport class fastfailed the io */ 163695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_TARGET_FAILURE 0x10 /* Permanent target failure, do not retry on 164695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * other paths */ 165695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_NEXUS_FAILURE 0x11 /* Permanent nexus failure, retry on other 166695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * paths might yield different results */ 167695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_ALLOC_FAILURE 0x12 /* Space allocation on the device failed */ 168695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DID_MEDIUM_ERROR 0x13 /* Medium error */ 169695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_OK 0x00 /* Driver status */ 170695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 171695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 172695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * These indicate the error that occurred, and what is available. 173695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 174695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 175695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_BUSY 0x01 176695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_SOFT 0x02 177695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_MEDIA 0x03 178695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_ERROR 0x04 179695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 180695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_INVALID 0x05 181695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_TIMEOUT 0x06 182695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_HARD 0x07 183695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define DRIVER_SENSE 0x08 184695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 185695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 186695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Internal return values. 187695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 188695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 189695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define NEEDS_RETRY 0x2001 190695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SUCCESS 0x2002 191695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define FAILED 0x2003 192695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define QUEUED 0x2004 193695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SOFT_ERROR 0x2005 194695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define ADD_TO_MLQUEUE 0x2006 195695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define TIMEOUT_ERROR 0x2007 196695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_RETURN_NOT_HANDLED 0x2008 197695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define FAST_IO_FAIL 0x2009 198695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 199695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 200695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Midlevel queue return values. 201695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 202695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_MLQUEUE_HOST_BUSY 0x1055 203695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_MLQUEUE_DEVICE_BUSY 0x1056 204695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_MLQUEUE_EH_RETRY 0x1057 205695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_MLQUEUE_TARGET_BUSY 0x1058 206695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 207695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 208695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Use these to separate status msg and our bytes 209695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * 210695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * These are set by: 211695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * 212695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * status byte = set from target device 213695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * msg_byte = return status from host adapter itself. 214695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * host_byte = set by low-level driver to indicate status. 215695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * driver_byte = set by mid-level. 216695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 217695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define status_byte(result) (((result) >> 1) & 0x7f) 218695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define msg_byte(result) (((result) >> 8) & 0xff) 219695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define host_byte(result) (((result) >> 16) & 0xff) 220695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define driver_byte(result) (((result) >> 24) & 0xff) 221695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 222695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define sense_class(sense) (((sense) >> 4) & 0x7) 223695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define sense_error(sense) ((sense) & 0xf) 224695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define sense_valid(sense) ((sense) & 0x80) 225695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 226695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 227695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * default timeouts 228695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann*/ 229695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define FORMAT_UNIT_TIMEOUT (2 * 60 * 60 * HZ) 230695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define START_STOP_TIMEOUT (60 * HZ) 231695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define MOVE_MEDIUM_TIMEOUT (5 * 60 * HZ) 232695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define READ_ELEMENT_STATUS_TIMEOUT (5 * 60 * HZ) 233695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define READ_DEFECT_DATA_TIMEOUT (60 * HZ ) 234695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 235695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 236695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define IDENTIFY_BASE 0x80 237695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\ 238695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann ((can_disconnect) ? 0x40 : 0) |\ 239695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann ((lun) & 0x07)) 240695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 241695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 242695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * struct scsi_device::scsi_level values. For SCSI devices other than those 243695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * prior to SCSI-2 (i.e. over 12 years old) this value is (resp[2] + 1) 244695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * where "resp" is a byte array of the response to an INQUIRY. The scsi_level 245695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * variable is visible to the user via sysfs. 246695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 247695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 248695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_UNKNOWN 0 249695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_1 1 250695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_1_CCS 2 251695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_2 3 252695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_3 4 /* SPC */ 253695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_SPC_2 5 254695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_SPC_3 6 255695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 256695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 257695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * INQ PERIPHERAL QUALIFIERS 258695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 259695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_INQ_PQ_CON 0x00 260695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_INQ_PQ_NOT_CON 0x01 261695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_INQ_PQ_NOT_CAP 0x03 262695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 263695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 264695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 265695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Here are some scsi specific ioctl commands which are sometimes useful. 266695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * 267695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann * Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395 268695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann */ 269695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 270695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* Used to obtain PUN and LUN info. Conflicts with CDROMAUDIOBUFSIZ */ 271695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_IOCTL_GET_IDLUN 0x5382 272695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 273695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* 0x5383 and 0x5384 were used for SCSI_IOCTL_TAGGED_{ENABLE,DISABLE} */ 274695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 275695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* Used to obtain the host number of a device. */ 276695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_IOCTL_PROBE_HOST 0x5385 277695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 278695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* Used to obtain the bus number for a device */ 279695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_IOCTL_GET_BUS_NUMBER 0x5386 280695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 281695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* Used to obtain the PCI location of a device */ 282695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#define SCSI_IOCTL_GET_PCI 0x5387 283695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 284695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann/* Pull a u32 out of a SCSI message (using BE SCSI conventions) */ 285695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmannstatic inline __u32 scsi_to_u32(__u8 *ptr) 286695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann{ 287695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3]; 288695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann} 289695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann 290695dcc72487e20fd20bbec587a17bab6200f2c15Greg Hackmann#endif /* _SCSI_SCSI_H */ 291