diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/scsi/constants.c | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c new file mode 100644 index 000000000..340785536 --- /dev/null +++ b/drivers/scsi/constants.c @@ -0,0 +1,444 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ASCII values for a number of symbolic constants, printing functions, + * etc. + * Additions for SCSI 2 and Linux 2.2.x by D. Gilbert (990422) + * Additions for SCSI 3+ (SPC-3 T10/1416-D Rev 07 3 May 2002) + * by D. Gilbert and aeb (20020609) + * Updated to SPC-4 T10/1713-D Rev 36g, D. Gilbert 20130701 + */ + +#include <linux/blkdev.h> +#include <linux/module.h> +#include <linux/kernel.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_eh.h> +#include <scsi/scsi_dbg.h> + +/* Commands with service actions that change the command name */ +#define THIRD_PARTY_COPY_OUT 0x83 +#define THIRD_PARTY_COPY_IN 0x84 + +struct sa_name_list { + int opcode; + const struct value_name_pair *arr; + int arr_sz; +}; + +struct value_name_pair { + int value; + const char * name; +}; + +static const char * cdb_byte0_names[] = { +/* 00-03 */ "Test Unit Ready", "Rezero Unit/Rewind", NULL, "Request Sense", +/* 04-07 */ "Format Unit/Medium", "Read Block Limits", NULL, + "Reassign Blocks", +/* 08-0d */ "Read(6)", NULL, "Write(6)", "Seek(6)", NULL, NULL, +/* 0e-12 */ NULL, "Read Reverse", "Write Filemarks", "Space", "Inquiry", +/* 13-16 */ "Verify(6)", "Recover Buffered Data", "Mode Select(6)", + "Reserve(6)", +/* 17-1a */ "Release(6)", "Copy", "Erase", "Mode Sense(6)", +/* 1b-1d */ "Start/Stop Unit", "Receive Diagnostic", "Send Diagnostic", +/* 1e-1f */ "Prevent/Allow Medium Removal", NULL, +/* 20-22 */ NULL, NULL, NULL, +/* 23-28 */ "Read Format Capacities", "Set Window", + "Read Capacity(10)", NULL, NULL, "Read(10)", +/* 29-2d */ "Read Generation", "Write(10)", "Seek(10)", "Erase(10)", + "Read updated block", +/* 2e-31 */ "Write Verify(10)", "Verify(10)", "Search High", "Search Equal", +/* 32-34 */ "Search Low", "Set Limits", "Prefetch/Read Position", +/* 35-37 */ "Synchronize Cache(10)", "Lock/Unlock Cache(10)", + "Read Defect Data(10)", +/* 38-3c */ "Medium Scan", "Compare", "Copy Verify", "Write Buffer", + "Read Buffer", +/* 3d-3f */ "Update Block", "Read Long(10)", "Write Long(10)", +/* 40-41 */ "Change Definition", "Write Same(10)", +/* 42-48 */ "Unmap/Read sub-channel", "Read TOC/PMA/ATIP", + "Read density support", "Play audio(10)", "Get configuration", + "Play audio msf", "Sanitize/Play audio track/index", +/* 49-4f */ "Play track relative(10)", "Get event status notification", + "Pause/resume", "Log Select", "Log Sense", "Stop play/scan", + NULL, +/* 50-55 */ "Xdwrite", "Xpwrite, Read disk info", "Xdread, Read track info", + "Reserve track", "Send OPC info", "Mode Select(10)", +/* 56-5b */ "Reserve(10)", "Release(10)", "Repair track", "Read master cue", + "Mode Sense(10)", "Close track/session", +/* 5c-5f */ "Read buffer capacity", "Send cue sheet", "Persistent reserve in", + "Persistent reserve out", +/* 60-67 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 68-6f */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 70-77 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, +/* 78-7f */ NULL, NULL, NULL, NULL, NULL, NULL, "Extended CDB", + "Variable length", +/* 80-84 */ "Xdwrite(16)", "Rebuild(16)", "Regenerate(16)", + "Third party copy out", "Third party copy in", +/* 85-89 */ "ATA command pass through(16)", "Access control in", + "Access control out", "Read(16)", "Compare and Write", +/* 8a-8f */ "Write(16)", "ORWrite", "Read attributes", "Write attributes", + "Write and verify(16)", "Verify(16)", +/* 90-94 */ "Pre-fetch(16)", "Synchronize cache(16)", + "Lock/unlock cache(16)", "Write same(16)", NULL, +/* 95-99 */ NULL, NULL, NULL, NULL, NULL, +/* 9a-9f */ NULL, NULL, NULL, "Service action bidirectional", + "Service action in(16)", "Service action out(16)", +/* a0-a5 */ "Report luns", "ATA command pass through(12)/Blank", + "Security protocol in", "Maintenance in", "Maintenance out", + "Move medium/play audio(12)", +/* a6-a9 */ "Exchange medium", "Move medium attached", "Read(12)", + "Play track relative(12)", +/* aa-ae */ "Write(12)", NULL, "Erase(12), Get Performance", + "Read DVD structure", "Write and verify(12)", +/* af-b1 */ "Verify(12)", "Search data high(12)", "Search data equal(12)", +/* b2-b4 */ "Search data low(12)", "Set limits(12)", + "Read element status attached", +/* b5-b6 */ "Security protocol out", "Send volume tag, set streaming", +/* b7-b9 */ "Read defect data(12)", "Read element status", "Read CD msf", +/* ba-bc */ "Redundancy group (in), Scan", + "Redundancy group (out), Set cd-rom speed", "Spare (in), Play cd", +/* bd-bf */ "Spare (out), Mechanism status", "Volume set (in), Read cd", + "Volume set (out), Send DVD structure", +}; + +static const struct value_name_pair maint_in_arr[] = { + {0x5, "Report identifying information"}, + {0xa, "Report target port groups"}, + {0xb, "Report aliases"}, + {0xc, "Report supported operation codes"}, + {0xd, "Report supported task management functions"}, + {0xe, "Report priority"}, + {0xf, "Report timestamp"}, + {0x10, "Management protocol in"}, +}; +#define MAINT_IN_SZ ARRAY_SIZE(maint_in_arr) + +static const struct value_name_pair maint_out_arr[] = { + {0x6, "Set identifying information"}, + {0xa, "Set target port groups"}, + {0xb, "Change aliases"}, + {0xc, "Remove I_T nexus"}, + {0xe, "Set priority"}, + {0xf, "Set timestamp"}, + {0x10, "Management protocol out"}, +}; +#define MAINT_OUT_SZ ARRAY_SIZE(maint_out_arr) + +static const struct value_name_pair serv_in12_arr[] = { + {0x1, "Read media serial number"}, +}; +#define SERV_IN12_SZ ARRAY_SIZE(serv_in12_arr) + +static const struct value_name_pair serv_out12_arr[] = { + {-1, "dummy entry"}, +}; +#define SERV_OUT12_SZ ARRAY_SIZE(serv_out12_arr) + +static const struct value_name_pair serv_bidi_arr[] = { + {-1, "dummy entry"}, +}; +#define SERV_BIDI_SZ ARRAY_SIZE(serv_bidi_arr) + +static const struct value_name_pair serv_in16_arr[] = { + {0x10, "Read capacity(16)"}, + {0x11, "Read long(16)"}, + {0x12, "Get LBA status"}, + {0x13, "Report referrals"}, +}; +#define SERV_IN16_SZ ARRAY_SIZE(serv_in16_arr) + +static const struct value_name_pair serv_out16_arr[] = { + {0x11, "Write long(16)"}, + {0x1f, "Notify data transfer device(16)"}, +}; +#define SERV_OUT16_SZ ARRAY_SIZE(serv_out16_arr) + +static const struct value_name_pair pr_in_arr[] = { + {0x0, "Persistent reserve in, read keys"}, + {0x1, "Persistent reserve in, read reservation"}, + {0x2, "Persistent reserve in, report capabilities"}, + {0x3, "Persistent reserve in, read full status"}, +}; +#define PR_IN_SZ ARRAY_SIZE(pr_in_arr) + +static const struct value_name_pair pr_out_arr[] = { + {0x0, "Persistent reserve out, register"}, + {0x1, "Persistent reserve out, reserve"}, + {0x2, "Persistent reserve out, release"}, + {0x3, "Persistent reserve out, clear"}, + {0x4, "Persistent reserve out, preempt"}, + {0x5, "Persistent reserve out, preempt and abort"}, + {0x6, "Persistent reserve out, register and ignore existing key"}, + {0x7, "Persistent reserve out, register and move"}, +}; +#define PR_OUT_SZ ARRAY_SIZE(pr_out_arr) + +/* SPC-4 rev 34 renamed the Extended Copy opcode to Third Party Copy Out. + LID1 (List Identifier length: 1 byte) is the Extended Copy found in SPC-2 + and SPC-3 */ +static const struct value_name_pair tpc_out_arr[] = { + {0x0, "Extended copy(LID1)"}, + {0x1, "Extended copy(LID4)"}, + {0x10, "Populate token"}, + {0x11, "Write using token"}, + {0x1c, "Copy operation abort"}, +}; +#define TPC_OUT_SZ ARRAY_SIZE(tpc_out_arr) + +static const struct value_name_pair tpc_in_arr[] = { + {0x0, "Receive copy status(LID1)"}, + {0x1, "Receive copy data(LID1)"}, + {0x3, "Receive copy operating parameters"}, + {0x4, "Receive copy failure details(LID1)"}, + {0x5, "Receive copy status(LID4)"}, + {0x6, "Receive copy data(LID4)"}, + {0x7, "Receive ROD token information"}, + {0x8, "Report all ROD tokens"}, +}; +#define TPC_IN_SZ ARRAY_SIZE(tpc_in_arr) + + +static const struct value_name_pair variable_length_arr[] = { + {0x1, "Rebuild(32)"}, + {0x2, "Regenerate(32)"}, + {0x3, "Xdread(32)"}, + {0x4, "Xdwrite(32)"}, + {0x5, "Xdwrite extended(32)"}, + {0x6, "Xpwrite(32)"}, + {0x7, "Xdwriteread(32)"}, + {0x8, "Xdwrite extended(64)"}, + {0x9, "Read(32)"}, + {0xa, "Verify(32)"}, + {0xb, "Write(32)"}, + {0xc, "Write an verify(32)"}, + {0xd, "Write same(32)"}, + {0x8801, "Format OSD"}, + {0x8802, "Create (osd)"}, + {0x8803, "List (osd)"}, + {0x8805, "Read (osd)"}, + {0x8806, "Write (osd)"}, + {0x8807, "Append (osd)"}, + {0x8808, "Flush (osd)"}, + {0x880a, "Remove (osd)"}, + {0x880b, "Create partition (osd)"}, + {0x880c, "Remove partition (osd)"}, + {0x880e, "Get attributes (osd)"}, + {0x880f, "Set attributes (osd)"}, + {0x8812, "Create and write (osd)"}, + {0x8815, "Create collection (osd)"}, + {0x8816, "Remove collection (osd)"}, + {0x8817, "List collection (osd)"}, + {0x8818, "Set key (osd)"}, + {0x8819, "Set master key (osd)"}, + {0x881a, "Flush collection (osd)"}, + {0x881b, "Flush partition (osd)"}, + {0x881c, "Flush OSD"}, + {0x8f7e, "Perform SCSI command (osd)"}, + {0x8f7f, "Perform task management function (osd)"}, +}; +#define VARIABLE_LENGTH_SZ ARRAY_SIZE(variable_length_arr) + +static struct sa_name_list sa_names_arr[] = { + {VARIABLE_LENGTH_CMD, variable_length_arr, VARIABLE_LENGTH_SZ}, + {MAINTENANCE_IN, maint_in_arr, MAINT_IN_SZ}, + {MAINTENANCE_OUT, maint_out_arr, MAINT_OUT_SZ}, + {PERSISTENT_RESERVE_IN, pr_in_arr, PR_IN_SZ}, + {PERSISTENT_RESERVE_OUT, pr_out_arr, PR_OUT_SZ}, + {SERVICE_ACTION_IN_12, serv_in12_arr, SERV_IN12_SZ}, + {SERVICE_ACTION_OUT_12, serv_out12_arr, SERV_OUT12_SZ}, + {SERVICE_ACTION_BIDIRECTIONAL, serv_bidi_arr, SERV_BIDI_SZ}, + {SERVICE_ACTION_IN_16, serv_in16_arr, SERV_IN16_SZ}, + {SERVICE_ACTION_OUT_16, serv_out16_arr, SERV_OUT16_SZ}, + {THIRD_PARTY_COPY_IN, tpc_in_arr, TPC_IN_SZ}, + {THIRD_PARTY_COPY_OUT, tpc_out_arr, TPC_OUT_SZ}, + {0, NULL, 0}, +}; + +bool scsi_opcode_sa_name(int opcode, int service_action, + const char **cdb_name, const char **sa_name) +{ + struct sa_name_list *sa_name_ptr; + const struct value_name_pair *arr = NULL; + int arr_sz, k; + + *cdb_name = NULL; + if (opcode >= VENDOR_SPECIFIC_CDB) + return false; + + if (opcode < ARRAY_SIZE(cdb_byte0_names)) + *cdb_name = cdb_byte0_names[opcode]; + + for (sa_name_ptr = sa_names_arr; sa_name_ptr->arr; ++sa_name_ptr) { + if (sa_name_ptr->opcode == opcode) { + arr = sa_name_ptr->arr; + arr_sz = sa_name_ptr->arr_sz; + break; + } + } + if (!arr) + return false; + + for (k = 0; k < arr_sz; ++k, ++arr) { + if (service_action == arr->value) + break; + } + if (k < arr_sz) + *sa_name = arr->name; + + return true; +} + +struct error_info { + unsigned short code12; /* 0x0302 looks better than 0x03,0x02 */ + unsigned short size; +}; + +/* + * There are 700+ entries in this table. To save space, we don't store + * (code, pointer) pairs, which would make sizeof(struct + * error_info)==16 on 64 bits. Rather, the second element just stores + * the size (including \0) of the corresponding string, and we use the + * sum of these to get the appropriate offset into additional_text + * defined below. This approach saves 12 bytes per entry. + */ +static const struct error_info additional[] = +{ +#define SENSE_CODE(c, s) {c, sizeof(s)}, +#include "sense_codes.h" +#undef SENSE_CODE +}; + +static const char *additional_text = +#define SENSE_CODE(c, s) s "\0" +#include "sense_codes.h" +#undef SENSE_CODE + ; + +struct error_info2 { + unsigned char code1, code2_min, code2_max; + const char * str; + const char * fmt; +}; + +static const struct error_info2 additional2[] = +{ + {0x40, 0x00, 0x7f, "Ram failure", ""}, + {0x40, 0x80, 0xff, "Diagnostic failure on component", ""}, + {0x41, 0x00, 0xff, "Data path failure", ""}, + {0x42, 0x00, 0xff, "Power-on or self-test failure", ""}, + {0x4D, 0x00, 0xff, "Tagged overlapped commands", "task tag "}, + {0x70, 0x00, 0xff, "Decompression exception", "short algorithm id of "}, + {0, 0, 0, NULL, NULL} +}; + +/* description of the sense key values */ +static const char * const snstext[] = { + "No Sense", /* 0: There is no sense information */ + "Recovered Error", /* 1: The last command completed successfully + but used error correction */ + "Not Ready", /* 2: The addressed target is not ready */ + "Medium Error", /* 3: Data error detected on the medium */ + "Hardware Error", /* 4: Controller or device failure */ + "Illegal Request", /* 5: Error in request */ + "Unit Attention", /* 6: Removable medium was changed, or + the target has been reset, or ... */ + "Data Protect", /* 7: Access to the data is blocked */ + "Blank Check", /* 8: Reached unexpected written or unwritten + region of the medium */ + "Vendor Specific(9)", + "Copy Aborted", /* A: COPY or COMPARE was aborted */ + "Aborted Command", /* B: The target aborted the command */ + "Equal", /* C: A SEARCH DATA command found data equal, + reserved in SPC-4 rev 36 */ + "Volume Overflow", /* D: Medium full with still data to be written */ + "Miscompare", /* E: Source data and data on the medium + do not agree */ + "Completed", /* F: command completed sense data reported, + may occur for successful command */ +}; + +/* Get sense key string or NULL if not available */ +const char * +scsi_sense_key_string(unsigned char key) +{ + if (key < ARRAY_SIZE(snstext)) + return snstext[key]; + return NULL; +} +EXPORT_SYMBOL(scsi_sense_key_string); + +/* + * Get additional sense code string or NULL if not available. + * This string may contain a "%x" and should be printed with ascq as arg. + */ +const char * +scsi_extd_sense_format(unsigned char asc, unsigned char ascq, const char **fmt) +{ + int i; + unsigned short code = ((asc << 8) | ascq); + unsigned offset = 0; + + *fmt = NULL; + for (i = 0; i < ARRAY_SIZE(additional); i++) { + if (additional[i].code12 == code) + return additional_text + offset; + offset += additional[i].size; + } + for (i = 0; additional2[i].fmt; i++) { + if (additional2[i].code1 == asc && + ascq >= additional2[i].code2_min && + ascq <= additional2[i].code2_max) { + *fmt = additional2[i].fmt; + return additional2[i].str; + } + } + return NULL; +} +EXPORT_SYMBOL(scsi_extd_sense_format); + +static const char * const hostbyte_table[]={ +"DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET", +"DID_ABORT", "DID_PARITY", "DID_ERROR", "DID_RESET", "DID_BAD_INTR", +"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE", +"DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST", "DID_TARGET_FAILURE", +"DID_NEXUS_FAILURE", "DID_ALLOC_FAILURE", "DID_MEDIUM_ERROR" }; + +const char *scsi_hostbyte_string(int result) +{ + enum scsi_host_status hb = host_byte(result); + const char *hb_string = NULL; + + if (hb < ARRAY_SIZE(hostbyte_table)) + hb_string = hostbyte_table[hb]; + return hb_string; +} +EXPORT_SYMBOL(scsi_hostbyte_string); + +#define scsi_mlreturn_name(result) { result, #result } +static const struct value_name_pair scsi_mlreturn_arr[] = { + scsi_mlreturn_name(NEEDS_RETRY), + scsi_mlreturn_name(SUCCESS), + scsi_mlreturn_name(FAILED), + scsi_mlreturn_name(QUEUED), + scsi_mlreturn_name(SOFT_ERROR), + scsi_mlreturn_name(ADD_TO_MLQUEUE), + scsi_mlreturn_name(TIMEOUT_ERROR), + scsi_mlreturn_name(SCSI_RETURN_NOT_HANDLED), + scsi_mlreturn_name(FAST_IO_FAIL) +}; + +const char *scsi_mlreturn_string(int result) +{ + const struct value_name_pair *arr = scsi_mlreturn_arr; + int k; + + for (k = 0; k < ARRAY_SIZE(scsi_mlreturn_arr); ++k, ++arr) { + if (result == arr->value) + return arr->name; + } + return NULL; +} +EXPORT_SYMBOL(scsi_mlreturn_string); |