| Message ID | 20210524025457.11299-3-bvanassche@acm.org |
|---|---|
| State | New |
| Headers | show |
| Series | Introduce enums for SCSI status codes | expand |
On 5/23/21 9:54 PM, Bart Van Assche wrote: > Make it possible for the compiler to verify whether SAM, message, host > and driver status codes are used correctly. > > Reviewed-by: John Garry <john.garry@huawei.com> > Cc: Hannes Reinecke <hare@suse.com> > Signed-off-by: Bart Van Assche <bvanassche@acm.org> > --- > drivers/scsi/constants.c | 4 +- > drivers/target/target_core_pscsi.c | 2 +- > include/scsi/scsi.h | 81 +-------------------------- > include/scsi/scsi_proto.h | 24 ++++---- > include/scsi/scsi_status.h | 89 ++++++++++++++++++++++++++++++ > 5 files changed, 107 insertions(+), 93 deletions(-) > create mode 100644 include/scsi/scsi_status.h > > diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c > index 84d73f57292b..28ef83868478 100644 > --- a/drivers/scsi/constants.c > +++ b/drivers/scsi/constants.c > @@ -412,8 +412,8 @@ static const char * const driverbyte_table[]={ > > const char *scsi_hostbyte_string(int result) > { > + enum scsi_host_status hb = host_byte(result); > const char *hb_string = NULL; > - int hb = host_byte(result); > > if (hb < ARRAY_SIZE(hostbyte_table)) > hb_string = hostbyte_table[hb]; > @@ -423,8 +423,8 @@ EXPORT_SYMBOL(scsi_hostbyte_string); > > const char *scsi_driverbyte_string(int result) > { > + enum scsi_driver_status db = driver_byte(result); > const char *db_string = NULL; > - int db = driver_byte(result); > > if (db < ARRAY_SIZE(driverbyte_table)) > db_string = driverbyte_table[db]; > diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c > index f2a11414366d..6e08673dc583 100644 > --- a/drivers/target/target_core_pscsi.c > +++ b/drivers/target/target_core_pscsi.c > @@ -1044,7 +1044,7 @@ static void pscsi_req_done(struct request *req, blk_status_t status) > struct se_cmd *cmd = req->end_io_data; > struct pscsi_plugin_task *pt = cmd->priv; > int result = scsi_req(req)->result; > - u8 scsi_status = status_byte(result) << 1; > + enum sam_status scsi_status = status_byte(result) << 1; > > if (scsi_status != SAM_STAT_GOOD) { > pr_debug("PSCSI Status Byte exception at cmd: %p CDB:" > diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h > index 7f392405991b..268fe1730d6b 100644 > --- a/include/scsi/scsi.h > +++ b/include/scsi/scsi.h > @@ -11,6 +11,7 @@ > #include <linux/kernel.h> > #include <scsi/scsi_common.h> > #include <scsi/scsi_proto.h> > +#include <scsi/scsi_status.h> > > struct scsi_cmnd; > > @@ -64,92 +65,14 @@ static inline int scsi_is_wlun(u64 lun) > > > /* > - * MESSAGE CODES > + * Extended message codes. > */ > - > -#define COMMAND_COMPLETE 0x00 > -#define EXTENDED_MESSAGE 0x01 > #define EXTENDED_MODIFY_DATA_POINTER 0x00 > #define EXTENDED_SDTR 0x01 > #define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */ > #define EXTENDED_WDTR 0x03 > #define EXTENDED_PPR 0x04 > #define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05 > -#define SAVE_POINTERS 0x02 > -#define RESTORE_POINTERS 0x03 > -#define DISCONNECT 0x04 > -#define INITIATOR_ERROR 0x05 > -#define ABORT_TASK_SET 0x06 > -#define MESSAGE_REJECT 0x07 > -#define NOP 0x08 > -#define MSG_PARITY_ERROR 0x09 > -#define LINKED_CMD_COMPLETE 0x0a > -#define LINKED_FLG_CMD_COMPLETE 0x0b > -#define TARGET_RESET 0x0c > -#define ABORT_TASK 0x0d > -#define CLEAR_TASK_SET 0x0e > -#define INITIATE_RECOVERY 0x0f /* SCSI-II only */ > -#define RELEASE_RECOVERY 0x10 /* SCSI-II only */ > -#define TERMINATE_IO_PROC 0x11 /* SCSI-II only */ > -#define CLEAR_ACA 0x16 > -#define LOGICAL_UNIT_RESET 0x17 > -#define SIMPLE_QUEUE_TAG 0x20 > -#define HEAD_OF_QUEUE_TAG 0x21 > -#define ORDERED_QUEUE_TAG 0x22 > -#define IGNORE_WIDE_RESIDUE 0x23 > -#define ACA 0x24 > -#define QAS_REQUEST 0x55 > - > -/* Old SCSI2 names, don't use in new code */ > -#define BUS_DEVICE_RESET TARGET_RESET > -#define ABORT ABORT_TASK_SET > - > -/* > - * Host byte codes > - */ > - > -#define DID_OK 0x00 /* NO error */ > -#define DID_NO_CONNECT 0x01 /* Couldn't connect before timeout period */ > -#define DID_BUS_BUSY 0x02 /* BUS stayed busy through time out period */ > -#define DID_TIME_OUT 0x03 /* TIMED OUT for other reason */ > -#define DID_BAD_TARGET 0x04 /* BAD target. */ > -#define DID_ABORT 0x05 /* Told to abort for some other reason */ > -#define DID_PARITY 0x06 /* Parity error */ > -#define DID_ERROR 0x07 /* Internal error */ > -#define DID_RESET 0x08 /* Reset by somebody. */ > -#define DID_BAD_INTR 0x09 /* Got an interrupt we weren't expecting. */ > -#define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */ > -#define DID_SOFT_ERROR 0x0b /* The low level driver just wish a retry */ > -#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 DID_TRANSPORT_MARGINAL 0x14 /* Transport marginal errors */ > -#define DRIVER_OK 0x00 /* Driver status */ > - > -/* > - * These indicate the error that occurred, and what is available. > - */ > - > -#define DRIVER_BUSY 0x01 > -#define DRIVER_SOFT 0x02 > -#define DRIVER_MEDIA 0x03 > -#define DRIVER_ERROR 0x04 > - > -#define DRIVER_INVALID 0x05 > -#define DRIVER_TIMEOUT 0x06 > -#define DRIVER_HARD 0x07 > -#define DRIVER_SENSE 0x08 > > /* > * Internal return values. > diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h > index 5c106c4f249e..84d4a3a14963 100644 > --- a/include/scsi/scsi_proto.h > +++ b/include/scsi/scsi_proto.h > @@ -190,17 +190,19 @@ struct scsi_varlen_cdb_hdr { > * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft > * T10/1561-D Revision 4 Draft dated 7th November 2002. > */ > -#define SAM_STAT_GOOD 0x00 > -#define SAM_STAT_CHECK_CONDITION 0x02 > -#define SAM_STAT_CONDITION_MET 0x04 > -#define SAM_STAT_BUSY 0x08 > -#define SAM_STAT_INTERMEDIATE 0x10 > -#define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14 > -#define SAM_STAT_RESERVATION_CONFLICT 0x18 > -#define SAM_STAT_COMMAND_TERMINATED 0x22 /* obsolete in SAM-3 */ > -#define SAM_STAT_TASK_SET_FULL 0x28 > -#define SAM_STAT_ACA_ACTIVE 0x30 > -#define SAM_STAT_TASK_ABORTED 0x40 > +enum sam_status { > + SAM_STAT_GOOD = 0x00, > + SAM_STAT_CHECK_CONDITION = 0x02, > + SAM_STAT_CONDITION_MET = 0x04, > + SAM_STAT_BUSY = 0x08, > + SAM_STAT_INTERMEDIATE = 0x10, > + SAM_STAT_INTERMEDIATE_CONDITION_MET = 0x14, > + SAM_STAT_RESERVATION_CONFLICT = 0x18, > + SAM_STAT_COMMAND_TERMINATED = 0x22, /* obsolete in SAM-3 */ > + SAM_STAT_TASK_SET_FULL = 0x28, > + SAM_STAT_ACA_ACTIVE = 0x30, > + SAM_STAT_TASK_ABORTED = 0x40, > +}; > > /* > * Status codes. These are deprecated as they are shifted 1 bit right > diff --git a/include/scsi/scsi_status.h b/include/scsi/scsi_status.h > new file mode 100644 > index 000000000000..66d2d421ad2d > --- /dev/null > +++ b/include/scsi/scsi_status.h > @@ -0,0 +1,89 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > + > +#ifndef _SCSI_SCSI_STATUS_H > +#define _SCSI_SCSI_STATUS_H > + > +#include <linux/types.h> > +#include <scsi/scsi_proto.h> > + > +/* Message codes. */ > +enum scsi_msg_byte { > + COMMAND_COMPLETE = 0x00, > + EXTENDED_MESSAGE = 0x01, > + SAVE_POINTERS = 0x02, > + RESTORE_POINTERS = 0x03, > + DISCONNECT = 0x04, > + INITIATOR_ERROR = 0x05, > + ABORT_TASK_SET = 0x06, > + MESSAGE_REJECT = 0x07, > + NOP = 0x08, > + MSG_PARITY_ERROR = 0x09, > + LINKED_CMD_COMPLETE = 0x0a, > + LINKED_FLG_CMD_COMPLETE = 0x0b, > + TARGET_RESET = 0x0c, > + ABORT_TASK = 0x0d, > + CLEAR_TASK_SET = 0x0e, > + INITIATE_RECOVERY = 0x0f, /* SCSI-II only */ > + RELEASE_RECOVERY = 0x10, /* SCSI-II only */ > + TERMINATE_IO_PROC = 0x11, /* SCSI-II only */ > + CLEAR_ACA = 0x16, > + LOGICAL_UNIT_RESET = 0x17, > + SIMPLE_QUEUE_TAG = 0x20, > + HEAD_OF_QUEUE_TAG = 0x21, > + ORDERED_QUEUE_TAG = 0x22, > + IGNORE_WIDE_RESIDUE = 0x23, > + ACA = 0x24, > + QAS_REQUEST = 0x55, > + > + /* Old SCSI2 names, don't use in new code */ > + BUS_DEVICE_RESET = TARGET_RESET, > + ABORT = ABORT_TASK_SET, > +}; > + > +/* Host byte codes. */ > +enum scsi_host_status { > + DID_OK = 0x00, /* NO error */ > + DID_NO_CONNECT = 0x01, /* Couldn't connect before timeout period */ > + DID_BUS_BUSY = 0x02, /* BUS stayed busy through time out period */ > + DID_TIME_OUT = 0x03, /* TIMED OUT for other reason */ > + DID_BAD_TARGET = 0x04, /* BAD target. */ > + DID_ABORT = 0x05, /* Told to abort for some other reason */ > + DID_PARITY = 0x06, /* Parity error */ > + DID_ERROR = 0x07, /* Internal error */ > + DID_RESET = 0x08, /* Reset by somebody. */ > + DID_BAD_INTR = 0x09, /* Got an interrupt we weren't expecting. */ > + DID_PASSTHROUGH = 0x0a, /* Force command past mid-layer */ > + DID_SOFT_ERROR = 0x0b, /* The low level driver just wish a retry */ > + DID_IMM_RETRY = 0x0c, /* Retry without decrementing retry count */ > + DID_REQUEUE = 0x0d, /* Requeue command (no immediate retry) also > + * without decrementing the retry count */ > + 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 */ > + DID_TRANSPORT_FAILFAST = 0x0f, /* Transport class fastfailed the io */ > + DID_TARGET_FAILURE = 0x10, /* Permanent target failure, do not retry on > + * other paths */ > + DID_NEXUS_FAILURE = 0x11, /* Permanent nexus failure, retry on other > + * paths might yield different results */ > + DID_ALLOC_FAILURE = 0x12, /* Space allocation on the device failed */ > + DID_MEDIUM_ERROR = 0x13, /* Medium error */ > + DID_TRANSPORT_MARGINAL = 0x14, /* Transport marginal errors */ > +}; > + > +/* Driver byte codes. */ > +enum scsi_driver_status { > + DRIVER_OK = 0x00, > + > + DRIVER_BUSY = 0x01, > + DRIVER_SOFT = 0x02, > + DRIVER_MEDIA = 0x03, > + DRIVER_ERROR = 0x04, > + > + DRIVER_INVALID = 0x05, > + DRIVER_TIMEOUT = 0x06, > + DRIVER_HARD = 0x07, > + DRIVER_SENSE = 0x08, > +}; > + > +#endif /* _SCSI_SCSI_STATUS_H */ > Looks Good to me. Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 84d73f57292b..28ef83868478 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -412,8 +412,8 @@ static const char * const driverbyte_table[]={ const char *scsi_hostbyte_string(int result) { + enum scsi_host_status hb = host_byte(result); const char *hb_string = NULL; - int hb = host_byte(result); if (hb < ARRAY_SIZE(hostbyte_table)) hb_string = hostbyte_table[hb]; @@ -423,8 +423,8 @@ EXPORT_SYMBOL(scsi_hostbyte_string); const char *scsi_driverbyte_string(int result) { + enum scsi_driver_status db = driver_byte(result); const char *db_string = NULL; - int db = driver_byte(result); if (db < ARRAY_SIZE(driverbyte_table)) db_string = driverbyte_table[db]; diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index f2a11414366d..6e08673dc583 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -1044,7 +1044,7 @@ static void pscsi_req_done(struct request *req, blk_status_t status) struct se_cmd *cmd = req->end_io_data; struct pscsi_plugin_task *pt = cmd->priv; int result = scsi_req(req)->result; - u8 scsi_status = status_byte(result) << 1; + enum sam_status scsi_status = status_byte(result) << 1; if (scsi_status != SAM_STAT_GOOD) { pr_debug("PSCSI Status Byte exception at cmd: %p CDB:" diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index 7f392405991b..268fe1730d6b 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <scsi/scsi_common.h> #include <scsi/scsi_proto.h> +#include <scsi/scsi_status.h> struct scsi_cmnd; @@ -64,92 +65,14 @@ static inline int scsi_is_wlun(u64 lun) /* - * MESSAGE CODES + * Extended message codes. */ - -#define COMMAND_COMPLETE 0x00 -#define EXTENDED_MESSAGE 0x01 #define EXTENDED_MODIFY_DATA_POINTER 0x00 #define EXTENDED_SDTR 0x01 #define EXTENDED_EXTENDED_IDENTIFY 0x02 /* SCSI-I only */ #define EXTENDED_WDTR 0x03 #define EXTENDED_PPR 0x04 #define EXTENDED_MODIFY_BIDI_DATA_PTR 0x05 -#define SAVE_POINTERS 0x02 -#define RESTORE_POINTERS 0x03 -#define DISCONNECT 0x04 -#define INITIATOR_ERROR 0x05 -#define ABORT_TASK_SET 0x06 -#define MESSAGE_REJECT 0x07 -#define NOP 0x08 -#define MSG_PARITY_ERROR 0x09 -#define LINKED_CMD_COMPLETE 0x0a -#define LINKED_FLG_CMD_COMPLETE 0x0b -#define TARGET_RESET 0x0c -#define ABORT_TASK 0x0d -#define CLEAR_TASK_SET 0x0e -#define INITIATE_RECOVERY 0x0f /* SCSI-II only */ -#define RELEASE_RECOVERY 0x10 /* SCSI-II only */ -#define TERMINATE_IO_PROC 0x11 /* SCSI-II only */ -#define CLEAR_ACA 0x16 -#define LOGICAL_UNIT_RESET 0x17 -#define SIMPLE_QUEUE_TAG 0x20 -#define HEAD_OF_QUEUE_TAG 0x21 -#define ORDERED_QUEUE_TAG 0x22 -#define IGNORE_WIDE_RESIDUE 0x23 -#define ACA 0x24 -#define QAS_REQUEST 0x55 - -/* Old SCSI2 names, don't use in new code */ -#define BUS_DEVICE_RESET TARGET_RESET -#define ABORT ABORT_TASK_SET - -/* - * Host byte codes - */ - -#define DID_OK 0x00 /* NO error */ -#define DID_NO_CONNECT 0x01 /* Couldn't connect before timeout period */ -#define DID_BUS_BUSY 0x02 /* BUS stayed busy through time out period */ -#define DID_TIME_OUT 0x03 /* TIMED OUT for other reason */ -#define DID_BAD_TARGET 0x04 /* BAD target. */ -#define DID_ABORT 0x05 /* Told to abort for some other reason */ -#define DID_PARITY 0x06 /* Parity error */ -#define DID_ERROR 0x07 /* Internal error */ -#define DID_RESET 0x08 /* Reset by somebody. */ -#define DID_BAD_INTR 0x09 /* Got an interrupt we weren't expecting. */ -#define DID_PASSTHROUGH 0x0a /* Force command past mid-layer */ -#define DID_SOFT_ERROR 0x0b /* The low level driver just wish a retry */ -#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 DID_TRANSPORT_MARGINAL 0x14 /* Transport marginal errors */ -#define DRIVER_OK 0x00 /* Driver status */ - -/* - * These indicate the error that occurred, and what is available. - */ - -#define DRIVER_BUSY 0x01 -#define DRIVER_SOFT 0x02 -#define DRIVER_MEDIA 0x03 -#define DRIVER_ERROR 0x04 - -#define DRIVER_INVALID 0x05 -#define DRIVER_TIMEOUT 0x06 -#define DRIVER_HARD 0x07 -#define DRIVER_SENSE 0x08 /* * Internal return values. diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h index 5c106c4f249e..84d4a3a14963 100644 --- a/include/scsi/scsi_proto.h +++ b/include/scsi/scsi_proto.h @@ -190,17 +190,19 @@ struct scsi_varlen_cdb_hdr { * SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft * T10/1561-D Revision 4 Draft dated 7th November 2002. */ -#define SAM_STAT_GOOD 0x00 -#define SAM_STAT_CHECK_CONDITION 0x02 -#define SAM_STAT_CONDITION_MET 0x04 -#define SAM_STAT_BUSY 0x08 -#define SAM_STAT_INTERMEDIATE 0x10 -#define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14 -#define SAM_STAT_RESERVATION_CONFLICT 0x18 -#define SAM_STAT_COMMAND_TERMINATED 0x22 /* obsolete in SAM-3 */ -#define SAM_STAT_TASK_SET_FULL 0x28 -#define SAM_STAT_ACA_ACTIVE 0x30 -#define SAM_STAT_TASK_ABORTED 0x40 +enum sam_status { + SAM_STAT_GOOD = 0x00, + SAM_STAT_CHECK_CONDITION = 0x02, + SAM_STAT_CONDITION_MET = 0x04, + SAM_STAT_BUSY = 0x08, + SAM_STAT_INTERMEDIATE = 0x10, + SAM_STAT_INTERMEDIATE_CONDITION_MET = 0x14, + SAM_STAT_RESERVATION_CONFLICT = 0x18, + SAM_STAT_COMMAND_TERMINATED = 0x22, /* obsolete in SAM-3 */ + SAM_STAT_TASK_SET_FULL = 0x28, + SAM_STAT_ACA_ACTIVE = 0x30, + SAM_STAT_TASK_ABORTED = 0x40, +}; /* * Status codes. These are deprecated as they are shifted 1 bit right diff --git a/include/scsi/scsi_status.h b/include/scsi/scsi_status.h new file mode 100644 index 000000000000..66d2d421ad2d --- /dev/null +++ b/include/scsi/scsi_status.h @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _SCSI_SCSI_STATUS_H +#define _SCSI_SCSI_STATUS_H + +#include <linux/types.h> +#include <scsi/scsi_proto.h> + +/* Message codes. */ +enum scsi_msg_byte { + COMMAND_COMPLETE = 0x00, + EXTENDED_MESSAGE = 0x01, + SAVE_POINTERS = 0x02, + RESTORE_POINTERS = 0x03, + DISCONNECT = 0x04, + INITIATOR_ERROR = 0x05, + ABORT_TASK_SET = 0x06, + MESSAGE_REJECT = 0x07, + NOP = 0x08, + MSG_PARITY_ERROR = 0x09, + LINKED_CMD_COMPLETE = 0x0a, + LINKED_FLG_CMD_COMPLETE = 0x0b, + TARGET_RESET = 0x0c, + ABORT_TASK = 0x0d, + CLEAR_TASK_SET = 0x0e, + INITIATE_RECOVERY = 0x0f, /* SCSI-II only */ + RELEASE_RECOVERY = 0x10, /* SCSI-II only */ + TERMINATE_IO_PROC = 0x11, /* SCSI-II only */ + CLEAR_ACA = 0x16, + LOGICAL_UNIT_RESET = 0x17, + SIMPLE_QUEUE_TAG = 0x20, + HEAD_OF_QUEUE_TAG = 0x21, + ORDERED_QUEUE_TAG = 0x22, + IGNORE_WIDE_RESIDUE = 0x23, + ACA = 0x24, + QAS_REQUEST = 0x55, + + /* Old SCSI2 names, don't use in new code */ + BUS_DEVICE_RESET = TARGET_RESET, + ABORT = ABORT_TASK_SET, +}; + +/* Host byte codes. */ +enum scsi_host_status { + DID_OK = 0x00, /* NO error */ + DID_NO_CONNECT = 0x01, /* Couldn't connect before timeout period */ + DID_BUS_BUSY = 0x02, /* BUS stayed busy through time out period */ + DID_TIME_OUT = 0x03, /* TIMED OUT for other reason */ + DID_BAD_TARGET = 0x04, /* BAD target. */ + DID_ABORT = 0x05, /* Told to abort for some other reason */ + DID_PARITY = 0x06, /* Parity error */ + DID_ERROR = 0x07, /* Internal error */ + DID_RESET = 0x08, /* Reset by somebody. */ + DID_BAD_INTR = 0x09, /* Got an interrupt we weren't expecting. */ + DID_PASSTHROUGH = 0x0a, /* Force command past mid-layer */ + DID_SOFT_ERROR = 0x0b, /* The low level driver just wish a retry */ + DID_IMM_RETRY = 0x0c, /* Retry without decrementing retry count */ + DID_REQUEUE = 0x0d, /* Requeue command (no immediate retry) also + * without decrementing the retry count */ + 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 */ + DID_TRANSPORT_FAILFAST = 0x0f, /* Transport class fastfailed the io */ + DID_TARGET_FAILURE = 0x10, /* Permanent target failure, do not retry on + * other paths */ + DID_NEXUS_FAILURE = 0x11, /* Permanent nexus failure, retry on other + * paths might yield different results */ + DID_ALLOC_FAILURE = 0x12, /* Space allocation on the device failed */ + DID_MEDIUM_ERROR = 0x13, /* Medium error */ + DID_TRANSPORT_MARGINAL = 0x14, /* Transport marginal errors */ +}; + +/* Driver byte codes. */ +enum scsi_driver_status { + DRIVER_OK = 0x00, + + DRIVER_BUSY = 0x01, + DRIVER_SOFT = 0x02, + DRIVER_MEDIA = 0x03, + DRIVER_ERROR = 0x04, + + DRIVER_INVALID = 0x05, + DRIVER_TIMEOUT = 0x06, + DRIVER_HARD = 0x07, + DRIVER_SENSE = 0x08, +}; + +#endif /* _SCSI_SCSI_STATUS_H */