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yttrium-virtio-gpu/vioscsi/utils.c
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benyamin-codez 334c14307e [vioscsi] Tracing improvements 
Includes:
a) Indentation fixes upon review (Credit to the eagle eye of @JonKohler..!)
b) Removes unnecessary and orphaned code
c) Culls unused code for InitializeDebugPrints() when EVENT_TRACING
d) Added comments to show necessary and necessary ETW inclusions

Signed-off-by: benyamin-codez <[email protected]>
2024-11-04 10:54:20 +02:00

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/*
* This file contains debug print routine implementation.
*
* Copyright (c) 2012-2017 Red Hat, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met :
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and / or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of their contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "helper.h"
#include "trace.h"
int virtioDebugLevel;
int bDebugPrint;
int nVioscsiDebugLevel;
#if !defined(EVENT_TRACING)
#if defined(COM_DEBUG)
#include <ntstrsafe.h>
#define RHEL_DEBUG_PORT ((PUCHAR)0x3F8)
#define TEMP_BUFFER_SIZE 256
static void DebugPrintFuncSerial(const char *format, ...)
{
char buf[TEMP_BUFFER_SIZE];
NTSTATUS status;
size_t len;
va_list list;
va_start(list, format);
status = RtlStringCbVPrintfA(buf, sizeof(buf), format, list);
if (status == STATUS_SUCCESS)
{
len = strlen(buf);
}
else
{
len = 2;
buf[0] = 'O';
buf[1] = '\n';
}
if (len)
{
WRITE_PORT_BUFFER_UCHAR(RHEL_DEBUG_PORT, (PUCHAR)buf, len);
WRITE_PORT_UCHAR(RHEL_DEBUG_PORT, '\r');
}
va_end(list);
}
#elif defined(PRINT_DEBUG)
static void DebugPrintFunc(const char *format, ...)
{
va_list list;
va_start(list, format);
vDbgPrintEx(DPFLTR_DEFAULT_ID, 9 | DPFLTR_MASK, format, list);
va_end(list);
}
#else
static void NoDebugPrintFunc(const char *format, ...)
{
}
#endif
void InitializeDebugPrints(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
{
//TBD - Read nDebugLevel and bDebugPrint from the registry
bDebugPrint = 1;
virtioDebugLevel = 0;
#if !defined(RUN_UNCHECKED)
nVioscsiDebugLevel = TRACE_ALL;
#endif
#if defined(PRINT_DEBUG)
VirtioDebugPrintProc = DebugPrintFunc;
#elif defined(COM_DEBUG)
VirtioDebugPrintProc = DebugPrintFuncSerial;
#else
VirtioDebugPrintProc = NoDebugPrintFunc;
#endif
}
#else
static void NoDebugPrintFunc(const char *format, ...) {} // This is NOT strictly required for ETW
void InitializeDebugPrints(IN PDRIVER_OBJECT DriverObject, IN PUNICODE_STRING RegistryPath)
{
VirtioDebugPrintProc = NoDebugPrintFunc; // This is NOT strictly required for ETW - neither DbgPrint nor DbgPrintEx will be called when EVENT_TRACING is defined
}
#endif
tDebugPrintFunc VirtioDebugPrintProc; // This is necessary for compilation due to VirtIO\kdebugprint.h requisites
#undef MAKE_CASE
#define MAKE_CASE(scsiOpCode) \
case scsiOpCode: \
scsiOpStr = #scsiOpCode; \
break;
char *DbgGetScsiOpStr(IN UCHAR opCode)
{
char *scsiOpStr = "?";
switch (opCode)
{
MAKE_CASE(SCSIOP_TEST_UNIT_READY) // Code 0x00
MAKE_CASE(SCSIOP_REWIND) // Code 0x01
MAKE_CASE(SCSIOP_REQUEST_BLOCK_ADDR) // Code 0x02
MAKE_CASE(SCSIOP_REQUEST_SENSE) // Code 0x03
MAKE_CASE(SCSIOP_FORMAT_UNIT) // Code 0x04
MAKE_CASE(SCSIOP_READ_BLOCK_LIMITS) // Code 0x05
MAKE_CASE(SCSIOP_INIT_ELEMENT_STATUS) // Code 0x07, aka SCSIOP_REASSIGN_BLOCKS
MAKE_CASE(SCSIOP_READ6) // Code 0x08, aka SCSIOP_RECEIVE
MAKE_CASE(SCSIOP_WRITE6) // Code 0x0A, aka SCSIOP_PRINT, SCSIOP_SEND
MAKE_CASE(SCSIOP_SEEK6) // Code 0x0B, aka SCSIOP_SET_CAPACITY, SCSIOP_SLEW_PRINT, SCSIOP_TRACK_SELECT
MAKE_CASE(SCSIOP_SEEK_BLOCK) // Code 0x0C
MAKE_CASE(SCSIOP_PARTITION) // Code 0x0D
MAKE_CASE(SCSIOP_READ_REVERSE) // Code 0x0F
MAKE_CASE(SCSIOP_FLUSH_BUFFER) // Code 0x10, aka SCSIOP_WRITE_FILEMARKS
MAKE_CASE(SCSIOP_SPACE) // Code 0x11
MAKE_CASE(SCSIOP_INQUIRY) // Code 0x12
MAKE_CASE(SCSIOP_VERIFY6) // Code 0x13
MAKE_CASE(SCSIOP_RECOVER_BUF_DATA) // Code 0x14
MAKE_CASE(SCSIOP_MODE_SELECT) // Code 0x15
MAKE_CASE(SCSIOP_RESERVE_UNIT) // Code 0x16
MAKE_CASE(SCSIOP_RELEASE_UNIT) // Code 0x17
MAKE_CASE(SCSIOP_COPY) // Code 0x18
MAKE_CASE(SCSIOP_ERASE) // Code 0x19
MAKE_CASE(SCSIOP_MODE_SENSE) // Code 0x1A
MAKE_CASE(SCSIOP_START_STOP_UNIT) // Code 0x1B, aka SCSIOP_LOAD_UNLOAD, SCSIOP_STOP_PRINT
MAKE_CASE(SCSIOP_RECEIVE_DIAGNOSTIC) // Code 0x1C
MAKE_CASE(SCSIOP_SEND_DIAGNOSTIC) // Code 0x1D
MAKE_CASE(SCSIOP_MEDIUM_REMOVAL) // Code 0x1E
MAKE_CASE(SCSIOP_READ_FORMATTED_CAPACITY) // Code 0x23
MAKE_CASE(SCSIOP_READ_CAPACITY) // Code 0x25
MAKE_CASE(SCSIOP_READ) // Code 0x28
MAKE_CASE(SCSIOP_WRITE) // Code 0x2A
MAKE_CASE(SCSIOP_SEEK) // Code 0x2B, aka SCSIOP_LOCATE, SCSIOP_POSITION_TO_ELEMENT
MAKE_CASE(SCSIOP_WRITE_VERIFY) // Code 0x2E
MAKE_CASE(SCSIOP_VERIFY) // Code 0x2F
MAKE_CASE(SCSIOP_SEARCH_DATA_HIGH) // Code 0x30
MAKE_CASE(SCSIOP_SEARCH_DATA_EQUAL) // Code 0x31
MAKE_CASE(SCSIOP_SEARCH_DATA_LOW) // Code 0x32
MAKE_CASE(SCSIOP_SET_LIMITS) // Code 0x33
MAKE_CASE(SCSIOP_READ_POSITION) // Code 0x34
MAKE_CASE(SCSIOP_SYNCHRONIZE_CACHE) // Code 0x35
MAKE_CASE(SCSIOP_COMPARE) // Code 0x39
MAKE_CASE(SCSIOP_COPY_COMPARE) // Code 0x3A
MAKE_CASE(SCSIOP_WRITE_DATA_BUFF) // Code 0x3B
MAKE_CASE(SCSIOP_READ_DATA_BUFF) // Code 0x3C
MAKE_CASE(SCSIOP_WRITE_LONG) // Code 0x3F
MAKE_CASE(SCSIOP_CHANGE_DEFINITION) // Code 0x40
MAKE_CASE(SCSIOP_WRITE_SAME) // Code 0x41
MAKE_CASE(SCSIOP_UNMAP) // Code 0x42, aka SCSIOP_READ_SUB_CHANNEL
MAKE_CASE(SCSIOP_READ_TOC) // Code 0x43
MAKE_CASE(SCSIOP_READ_HEADER) // Code 0x44, aka SCSIOP_REPORT_DENSITY_SUPPORT
MAKE_CASE(SCSIOP_PLAY_AUDIO) // Code 0x45
MAKE_CASE(SCSIOP_GET_CONFIGURATION) // Code 0x46
MAKE_CASE(SCSIOP_PLAY_AUDIO_MSF) // Code 0x47
MAKE_CASE(SCSIOP_SANITIZE) // Code 0x48, aka SCSIOP_PLAY_TRACK_INDEX
MAKE_CASE(SCSIOP_PLAY_TRACK_RELATIVE) // Code 0x49
MAKE_CASE(SCSIOP_GET_EVENT_STATUS) // Code 0x4A
MAKE_CASE(SCSIOP_PAUSE_RESUME) // Code 0x4B
MAKE_CASE(SCSIOP_LOG_SELECT) // Code 0x4C
MAKE_CASE(SCSIOP_LOG_SENSE) // Code 0x4D
MAKE_CASE(SCSIOP_STOP_PLAY_SCAN) // Code 0x4E
MAKE_CASE(SCSIOP_XDWRITE) // Code 0x50
MAKE_CASE(SCSIOP_READ_DISC_INFORMATION) // Code 0x51, aka SCSIOP_XPWRITE
MAKE_CASE(SCSIOP_READ_TRACK_INFORMATION) // Code 0x52
MAKE_CASE(SCSIOP_XDWRITE_READ) // Code 0x53, aka SCSIOP_RESERVE_TRACK_RZONE
MAKE_CASE(SCSIOP_SEND_OPC_INFORMATION) // Code 0x54
MAKE_CASE(SCSIOP_MODE_SELECT10) // Code 0x55
MAKE_CASE(SCSIOP_RESERVE_ELEMENT) // Code 0x56, aka SCSIOP_RESERVE_UNIT10
MAKE_CASE(SCSIOP_RELEASE_ELEMENT) // Code 0x57, aka SCSIOP_RELEASE_UNIT10
MAKE_CASE(SCSIOP_REPAIR_TRACK) // Code 0x58
MAKE_CASE(SCSIOP_MODE_SENSE10) // Code 0x5A
MAKE_CASE(SCSIOP_CLOSE_TRACK_SESSION) // Code 0x5B
MAKE_CASE(SCSIOP_READ_BUFFER_CAPACITY) // Code 0x5C
MAKE_CASE(SCSIOP_SEND_CUE_SHEET) // Code 0x5D
MAKE_CASE(SCSIOP_PERSISTENT_RESERVE_IN) // Code 0x5E
MAKE_CASE(SCSIOP_PERSISTENT_RESERVE_OUT) // Code 0x5F
MAKE_CASE(SCSIOP_OPERATION32) // Code 0x7F
MAKE_CASE(SCSIOP_XDWRITE_EXTENDED16) // Code 0x80, aka SCSIOP_WRITE_FILEMARKS16
MAKE_CASE(SCSIOP_REBUILD16) // Code 0x81, aka SCSIOP_READ_REVERSE16
MAKE_CASE(SCSIOP_REGENERATE16) // Code 0x82
MAKE_CASE(SCSIOP_WRITE_USING_TOKEN) // Code 0x83, aka SCSIOP_EXTENDED_COPY, SCSIOP_POPULATE_TOKEN
MAKE_CASE(SCSIOP_RECEIVE_ROD_TOKEN_INFORMATION) // Code 0x84, aka SCSIOP_RECEIVE_COPY_RESULTS
MAKE_CASE(SCSIOP_ATA_PASSTHROUGH16) // Code 0x85
MAKE_CASE(SCSIOP_ACCESS_CONTROL_IN) // Code 0x86
MAKE_CASE(SCSIOP_ACCESS_CONTROL_OUT) // Code 0x87
MAKE_CASE(SCSIOP_READ16) // Code 0x88
MAKE_CASE(SCSIOP_COMPARE_AND_WRITE) // Code 0x89
MAKE_CASE(SCSIOP_WRITE16) // Code 0x8A
MAKE_CASE(SCSIOP_READ_ATTRIBUTES) // Code 0x8C
MAKE_CASE(SCSIOP_WRITE_ATTRIBUTES) // Code 0x8D
MAKE_CASE(SCSIOP_WRITE_VERIFY16) // Code 0x8E
MAKE_CASE(SCSIOP_VERIFY16) // Code 0x8F
MAKE_CASE(SCSIOP_PREFETCH16) // Code 0x90
MAKE_CASE(SCSIOP_SYNCHRONIZE_CACHE16) // Code 0x91, aka SCSIOP_SPACE16
MAKE_CASE(SCSIOP_LOCK_UNLOCK_CACHE16) // Code 0x92, aka SCSIOP_LOCATE16
MAKE_CASE(SCSIOP_WRITE_SAME16) // Code 0x93, aka SCSIOP_ERASE16
MAKE_CASE(SCSIOP_ZBC_OUT) // Code 0x94
MAKE_CASE(SCSIOP_ZBC_IN) // Code 0x95
MAKE_CASE(SCSIOP_READ_DATA_BUFF16) // Code 0x9B
MAKE_CASE(SCSIOP_GET_LBA_STATUS) // Code 0x9E, aka SCSIOP_GET_PHYSICAL_ELEMENT_STATUS, SCSIOP_READ_CAPACITY16, SCSIOP_REMOVE_ELEMENT_AND_TRUNCATE, SCSIOP_SERVICE_ACTION_IN16
MAKE_CASE(SCSIOP_SERVICE_ACTION_OUT16) // Code 0x9F
MAKE_CASE(SCSIOP_REPORT_LUNS) // Code 0xA0
MAKE_CASE(SCSIOP_BLANK) // Code 0xA1, aka SCSIOP_ATA_PASSTHROUGH12
MAKE_CASE(SCSIOP_SEND_EVENT) // Code 0xA2
MAKE_CASE(SCSIOP_MAINTENANCE_IN) // Code 0xA3, aka SCSIOP_SEND_KEY
MAKE_CASE(SCSIOP_MAINTENANCE_OUT) // Code 0xA4, aka SCSIOP_REPORT_KEY
MAKE_CASE(SCSIOP_MOVE_MEDIUM) // Code 0xA5
MAKE_CASE(SCSIOP_LOAD_UNLOAD_SLOT) // Code 0xA6
MAKE_CASE(SCSIOP_SET_READ_AHEAD) // Code 0xA7
MAKE_CASE(SCSIOP_READ12) // Code 0xA8
MAKE_CASE(SCSIOP_SERVICE_ACTION_OUT12) // Code 0xA9
MAKE_CASE(SCSIOP_WRITE12) // Code 0xAA
MAKE_CASE(SCSIOP_SEND_MESSAGE) // Code 0xAB
MAKE_CASE(SCSIOP_GET_PERFORMANCE) // Code 0xAC
MAKE_CASE(SCSIOP_READ_DVD_STRUCTURE) // Code 0xAD
MAKE_CASE(SCSIOP_WRITE_VERIFY12) // Code 0xAE
MAKE_CASE(SCSIOP_VERIFY12) // Code 0xAF
MAKE_CASE(SCSIOP_SEARCH_DATA_HIGH12) // Code 0xB0
MAKE_CASE(SCSIOP_SEARCH_DATA_EQUAL12) // Code 0xB1
MAKE_CASE(SCSIOP_SEARCH_DATA_LOW12) // Code 0xB2
MAKE_CASE(SCSIOP_SET_LIMITS12) // Code 0xB3
MAKE_CASE(SCSIOP_READ_ELEMENT_STATUS_ATTACHED) // Code 0xB4
MAKE_CASE(SCSIOP_REQUEST_VOL_ELEMENT) // Code 0xB5, aka SCSIOP_SECURITY_PROTOCOL_OUT
MAKE_CASE(SCSIOP_SEND_VOLUME_TAG) // Code 0xB6
MAKE_CASE(SCSIOP_READ_DEFECT_DATA) // Code 0xB7
MAKE_CASE(SCSIOP_READ_ELEMENT_STATUS) // Code 0xB8
MAKE_CASE(SCSIOP_READ_CD_MSF) // Code 0xB9
MAKE_CASE(SCSIOP_REDUNDANCY_GROUP_IN) // Code 0xBA
MAKE_CASE(SCSIOP_REDUNDANCY_GROUP_OUT) // Code 0xBB
MAKE_CASE(SCSIOP_SPARE_IN) // Code 0xBC
MAKE_CASE(SCSIOP_SPARE_OUT) // Code 0xBD, aka SCSIOP_MECHANISM_STATUS
MAKE_CASE(SCSIOP_VOLUME_SET_IN) // Code 0xBE
MAKE_CASE(SCSIOP_VOLUME_SET_OUT) // Code 0xBF
MAKE_CASE(SCSIOP_INIT_ELEMENT_RANGE) // Code 0xE7
}
return scsiOpStr;
}
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