/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _SCSI_LOGGING_H #define _SCSI_LOGGING_H /* * This defines the scsi logging feature. It is a means by which the user can * select how much information they get about various goings on, and it can be * really useful for fault tracing. The logging word is divided into 10 3-bit * bitfields, each of which describes a loglevel. The division of things is * somewhat arbitrary, and the division of the word could be changed if it * were really needed for any reason. The numbers below are the only place * where these are specified. For a first go-around, 3 bits is more than * enough, since this gives 8 levels of logging (really 7, since 0 is always * off). Cutting to 2 bits might be wise at some point. */ #define SCSI_LOG_ERROR_SHIFT … #define SCSI_LOG_TIMEOUT_SHIFT … #define SCSI_LOG_SCAN_SHIFT … #define SCSI_LOG_MLQUEUE_SHIFT … #define SCSI_LOG_MLCOMPLETE_SHIFT … #define SCSI_LOG_LLQUEUE_SHIFT … #define SCSI_LOG_LLCOMPLETE_SHIFT … #define SCSI_LOG_HLQUEUE_SHIFT … #define SCSI_LOG_HLCOMPLETE_SHIFT … #define SCSI_LOG_IOCTL_SHIFT … #define SCSI_LOG_ERROR_BITS … #define SCSI_LOG_TIMEOUT_BITS … #define SCSI_LOG_SCAN_BITS … #define SCSI_LOG_MLQUEUE_BITS … #define SCSI_LOG_MLCOMPLETE_BITS … #define SCSI_LOG_LLQUEUE_BITS … #define SCSI_LOG_LLCOMPLETE_BITS … #define SCSI_LOG_HLQUEUE_BITS … #define SCSI_LOG_HLCOMPLETE_BITS … #define SCSI_LOG_IOCTL_BITS … extern unsigned int scsi_logging_level; #ifdef CONFIG_SCSI_LOGGING #define SCSI_LOG_LEVEL(SHIFT, BITS) … #define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) … #else #define SCSI_LOG_LEVEL … #define SCSI_CHECK_LOGGING … #endif /* CONFIG_SCSI_LOGGING */ /* * These are the macros that are actually used throughout the code to * log events. If logging isn't enabled, they are no-ops and will be * completely absent from the user's code. */ #define SCSI_LOG_ERROR_RECOVERY(LEVEL,CMD) … #define SCSI_LOG_TIMEOUT(LEVEL,CMD) … #define SCSI_LOG_SCAN_BUS(LEVEL,CMD) … #define SCSI_LOG_MLQUEUE(LEVEL,CMD) … #define SCSI_LOG_MLCOMPLETE(LEVEL,CMD) … #define SCSI_LOG_LLQUEUE(LEVEL,CMD) … #define SCSI_LOG_LLCOMPLETE(LEVEL,CMD) … #define SCSI_LOG_HLQUEUE(LEVEL,CMD) … #define SCSI_LOG_HLCOMPLETE(LEVEL,CMD) … #define SCSI_LOG_IOCTL(LEVEL,CMD) … #endif /* _SCSI_LOGGING_H */
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