diff options
Diffstat (limited to 'include/scsi/scsi.h')
| -rw-r--r-- | include/scsi/scsi.h | 148 |
1 files changed, 132 insertions, 16 deletions
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 1f74bcd603f..0a4edfe8af5 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -9,6 +9,14 @@ #define _SCSI_SCSI_H #include <linux/types.h> +#include <linux/scatterlist.h> +#include <linux/kernel.h> + +struct scsi_cmnd; + +enum scsi_timeouts { + SCSI_DEFAULT_EH_TIMEOUT = 10 * HZ, +}; /* * The maximum number of SG segments that we will put inside a @@ -30,11 +38,10 @@ #endif /* - * SCSI command lengths + * DIX-capable adapters effectively support infinite chaining for the + * protection information scatterlist */ - -extern const unsigned char scsi_command_size[8]; -#define COMMAND_SIZE(opcode) scsi_command_size[((opcode) >> 5) & 7] +#define SCSI_MAX_PROT_SG_SEGMENTS 0xFFFF /* * Special value for scanning to specify scanning or rescanning of all @@ -72,6 +79,7 @@ extern const unsigned char scsi_command_size[8]; #define SEND_DIAGNOSTIC 0x1d #define ALLOW_MEDIUM_REMOVAL 0x1e +#define READ_FORMAT_CAPACITIES 0x23 #define SET_WINDOW 0x24 #define READ_CAPACITY 0x25 #define READ_10 0x28 @@ -99,7 +107,10 @@ extern const unsigned char scsi_command_size[8]; #define WRITE_LONG 0x3f #define CHANGE_DEFINITION 0x40 #define WRITE_SAME 0x41 +#define UNMAP 0x42 #define READ_TOC 0x43 +#define READ_HEADER 0x44 +#define GET_EVENT_STATUS_NOTIFICATION 0x4a #define LOG_SELECT 0x4c #define LOG_SENSE 0x4d #define XDWRITEREAD_10 0x53 @@ -109,33 +120,120 @@ extern const unsigned char scsi_command_size[8]; #define MODE_SENSE_10 0x5a #define PERSISTENT_RESERVE_IN 0x5e #define PERSISTENT_RESERVE_OUT 0x5f +#define VARIABLE_LENGTH_CMD 0x7f #define REPORT_LUNS 0xa0 +#define SECURITY_PROTOCOL_IN 0xa2 #define MAINTENANCE_IN 0xa3 +#define MAINTENANCE_OUT 0xa4 #define MOVE_MEDIUM 0xa5 #define EXCHANGE_MEDIUM 0xa6 #define READ_12 0xa8 #define WRITE_12 0xaa +#define READ_MEDIA_SERIAL_NUMBER 0xab #define WRITE_VERIFY_12 0xae +#define VERIFY_12 0xaf #define SEARCH_HIGH_12 0xb0 #define SEARCH_EQUAL_12 0xb1 #define SEARCH_LOW_12 0xb2 +#define SECURITY_PROTOCOL_OUT 0xb5 #define READ_ELEMENT_STATUS 0xb8 #define SEND_VOLUME_TAG 0xb6 #define WRITE_LONG_2 0xea +#define EXTENDED_COPY 0x83 +#define RECEIVE_COPY_RESULTS 0x84 +#define ACCESS_CONTROL_IN 0x86 +#define ACCESS_CONTROL_OUT 0x87 #define READ_16 0x88 +#define COMPARE_AND_WRITE 0x89 #define WRITE_16 0x8a +#define READ_ATTRIBUTE 0x8c +#define WRITE_ATTRIBUTE 0x8d #define VERIFY_16 0x8f +#define SYNCHRONIZE_CACHE_16 0x91 +#define WRITE_SAME_16 0x93 #define SERVICE_ACTION_IN 0x9e /* values for service action in */ #define SAI_READ_CAPACITY_16 0x10 +#define SAI_GET_LBA_STATUS 0x12 +#define SAI_REPORT_REFERRALS 0x13 +/* values for VARIABLE_LENGTH_CMD service action codes + * see spc4r17 Section D.3.5, table D.7 and D.8 */ +#define VLC_SA_RECEIVE_CREDENTIAL 0x1800 /* values for maintenance in */ +#define MI_REPORT_IDENTIFYING_INFORMATION 0x05 #define MI_REPORT_TARGET_PGS 0x0a +#define MI_REPORT_ALIASES 0x0b +#define MI_REPORT_SUPPORTED_OPERATION_CODES 0x0c +#define MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS 0x0d +#define MI_REPORT_PRIORITY 0x0e +#define MI_REPORT_TIMESTAMP 0x0f +#define MI_MANAGEMENT_PROTOCOL_IN 0x10 +/* value for MI_REPORT_TARGET_PGS ext header */ +#define MI_EXT_HDR_PARAM_FMT 0x20 +/* values for maintenance out */ +#define MO_SET_IDENTIFYING_INFORMATION 0x06 +#define MO_SET_TARGET_PGS 0x0a +#define MO_CHANGE_ALIASES 0x0b +#define MO_SET_PRIORITY 0x0e +#define MO_SET_TIMESTAMP 0x0f +#define MO_MANAGEMENT_PROTOCOL_OUT 0x10 +/* values for variable length command */ +#define XDREAD_32 0x03 +#define XDWRITE_32 0x04 +#define XPWRITE_32 0x06 +#define XDWRITEREAD_32 0x07 +#define READ_32 0x09 +#define VERIFY_32 0x0a +#define WRITE_32 0x0b +#define WRITE_SAME_32 0x0d /* Values for T10/04-262r7 */ #define ATA_16 0x85 /* 16-byte pass-thru */ #define ATA_12 0xa1 /* 12-byte pass-thru */ /* + * SCSI command lengths + */ + +#define SCSI_MAX_VARLEN_CDB_SIZE 260 + +/* defined in T10 SCSI Primary Commands-2 (SPC2) */ +struct scsi_varlen_cdb_hdr { + __u8 opcode; /* opcode always == VARIABLE_LENGTH_CMD */ + __u8 control; + __u8 misc[5]; + __u8 additional_cdb_length; /* total cdb length - 8 */ + __be16 service_action; + /* service specific data follows */ +}; + +static inline unsigned +scsi_varlen_cdb_length(const void *hdr) +{ + return ((struct scsi_varlen_cdb_hdr *)hdr)->additional_cdb_length + 8; +} + +extern const unsigned char scsi_command_size_tbl[8]; +#define COMMAND_SIZE(opcode) scsi_command_size_tbl[((opcode) >> 5) & 7] + +static inline unsigned +scsi_command_size(const unsigned char *cmnd) +{ + return (cmnd[0] == VARIABLE_LENGTH_CMD) ? + scsi_varlen_cdb_length(cmnd) : COMMAND_SIZE(cmnd[0]); +} + +#ifdef CONFIG_ACPI +struct acpi_bus_type; + +extern int +scsi_register_acpi_bus_type(struct acpi_bus_type *bus); + +extern void +scsi_unregister_acpi_bus_type(struct acpi_bus_type *bus); +#endif + +/* * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft * T10/1561-D Revision 4 Draft dated 7th November 2002. */ @@ -233,6 +331,7 @@ static inline int scsi_status_is_good(int status) #define TYPE_RAID 0x0c #define TYPE_ENCLOSURE 0x0d /* Enclosure Services Device */ #define TYPE_RBC 0x0e +#define TYPE_OSD 0x11 #define TYPE_NO_LUN 0x7f /* SCSI protocols; these are taken from SPC-3 section 7.5 */ @@ -279,6 +378,20 @@ struct scsi_lun { }; /* + * The Well Known LUNS (SAM-3) in our int representation of a LUN + */ +#define SCSI_W_LUN_BASE 0xc100 +#define SCSI_W_LUN_REPORT_LUNS (SCSI_W_LUN_BASE + 1) +#define SCSI_W_LUN_ACCESS_CONTROL (SCSI_W_LUN_BASE + 2) +#define SCSI_W_LUN_TARGET_LOG_PAGE (SCSI_W_LUN_BASE + 3) + +static inline int scsi_is_wlun(unsigned int lun) +{ + return (lun & 0xff00) == SCSI_W_LUN_BASE; +} + + +/* * MESSAGE CODES */ @@ -337,6 +450,17 @@ struct scsi_lun { #define DID_IMM_RETRY 0x0c /* Retry without decrementing retry count */ #define DID_REQUEUE 0x0d /* Requeue command (no immediate retry) also * without decrementing the retry count */ +#define DID_TRANSPORT_DISRUPTED 0x0e /* Transport error disrupted execution + * and the driver blocked the port to + * recover the link. Transport class will + * retry or fail IO */ +#define DID_TRANSPORT_FAILFAST 0x0f /* Transport class fastfailed the io */ +#define DID_TARGET_FAILURE 0x10 /* Permanent target failure, do not retry on + * other paths */ +#define DID_NEXUS_FAILURE 0x11 /* Permanent nexus failure, retry on other + * paths might yield different results */ +#define DID_ALLOC_FAILURE 0x12 /* Space allocation on the device failed */ +#define DID_MEDIUM_ERROR 0x13 /* Medium error */ #define DRIVER_OK 0x00 /* Driver status */ /* @@ -353,16 +477,6 @@ struct scsi_lun { #define DRIVER_HARD 0x07 #define DRIVER_SENSE 0x08 -#define SUGGEST_RETRY 0x10 -#define SUGGEST_ABORT 0x20 -#define SUGGEST_REMAP 0x30 -#define SUGGEST_DIE 0x40 -#define SUGGEST_SENSE 0x80 -#define SUGGEST_IS_OK 0xff - -#define DRIVER_MASK 0x0f -#define SUGGEST_MASK 0xf0 - /* * Internal return values. */ @@ -374,6 +488,8 @@ struct scsi_lun { #define SOFT_ERROR 0x2005 #define ADD_TO_MLQUEUE 0x2006 #define TIMEOUT_ERROR 0x2007 +#define SCSI_RETURN_NOT_HANDLED 0x2008 +#define FAST_IO_FAIL 0x2009 /* * Midlevel queue return values. @@ -381,6 +497,7 @@ struct scsi_lun { #define SCSI_MLQUEUE_HOST_BUSY 0x1055 #define SCSI_MLQUEUE_DEVICE_BUSY 0x1056 #define SCSI_MLQUEUE_EH_RETRY 0x1057 +#define SCSI_MLQUEUE_TARGET_BUSY 0x1058 /* * Use these to separate status msg and our bytes @@ -396,11 +513,10 @@ struct scsi_lun { #define msg_byte(result) (((result) >> 8) & 0xff) #define host_byte(result) (((result) >> 16) & 0xff) #define driver_byte(result) (((result) >> 24) & 0xff) -#define suggestion(result) (driver_byte(result) & SUGGEST_MASK) #define sense_class(sense) (((sense) >> 4) & 0x7) #define sense_error(sense) ((sense) & 0xf) -#define sense_valid(sense) ((sense) & 0x80); +#define sense_valid(sense) ((sense) & 0x80) /* * default timeouts |