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Commit 21eb047c authored by Christoph Hellwig's avatar Christoph Hellwig
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[PATCH] split private and public scsi headers 

Two new headers:

  scsi_priv.h - for macros/declarations private to the scsi midlayer
		  (= not EXPORT_SYMBOL()ed)
  scsi_logging.h - for SCSI_LOG_* and friends, semi-private to the
  		midlayer and the upper drivers.  One abuse of this
		in dpt_i2o killed.
parent 30ec75cc
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Showing with 295 additions and 297 deletions
drivers/scsi/dpt_i2o.c
View file @ 21eb047c
......@@ -2495,8 +2495,6 @@ static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
pDev->pScsi_dev->online = FALSE;
if (pDev->pScsi_dev->access_count) {
// A drive that was mounted is no longer there... bad!
SCSI_LOG_ERROR_RECOVERY(1, printk ("%s:Rescan: Previously "
"mounted drive not found!\n",pHba->name));
printk(KERN_WARNING"%s:Mounted drive taken offline\n",pHba->name);
}
}
......
drivers/scsi/hosts.c
View file @ 21eb047c
......@@ -32,20 +32,20 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/completion.h>
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include <asm/dma.h>
#include "scsi.h"
#include "hosts.h"
#include "scsi_priv.h"
#include "scsi_logging.h"
static LIST_HEAD(scsi_host_list);
static spinlock_t scsi_host_list_lock = SPIN_LOCK_UNLOCKED;
......
drivers/scsi/hosts.h
View file @ 21eb047c
......@@ -527,13 +527,6 @@ static inline struct device *scsi_get_device(struct Scsi_Host *shost)
return shost->host_gendev;
}
/*
* Prototypes for functions/data in scsi_scan.c
*/
extern void scsi_scan_host(struct Scsi_Host *);
extern void scsi_forget_host(struct Scsi_Host *);
struct Scsi_Device_Template
{
struct list_head list;
......@@ -572,16 +565,8 @@ extern int scsi_remove_host(struct Scsi_Host *);
extern int scsi_register_host(Scsi_Host_Template *);
extern int scsi_unregister_host(Scsi_Host_Template *);
extern struct Scsi_Host *scsi_host_get_next(struct Scsi_Host *);
extern struct Scsi_Host *scsi_host_hn_get(unsigned short);
extern void scsi_host_put(struct Scsi_Host *);
extern void scsi_host_init(void);
/*
* host_busy inc/dec/test functions
*/
extern void scsi_host_busy_inc(struct Scsi_Host *, Scsi_Device *);
extern void scsi_host_busy_dec_and_test(struct Scsi_Host *, Scsi_Device *);
/**
* scsi_find_device - find a device given the host
......@@ -610,21 +595,3 @@ extern void scsi_upper_driver_unregister(struct Scsi_Device_Template *);
extern struct device_class shost_devclass;
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-indent-level: 4
* c-brace-imaginary-offset: 0
* c-brace-offset: -4
* c-argdecl-indent: 4
* c-label-offset: -4
* c-continued-statement-offset: 4
* c-continued-brace-offset: 0
* indent-tabs-mode: nil
* tab-width: 8
* End:
*/
drivers/scsi/scsi.c
View file @ 21eb047c
......@@ -56,6 +56,9 @@
#include "scsi.h"
#include "hosts.h"
#include "scsi_priv.h"
#include "scsi_logging.h"
/*
* Definitions and constants.
......
drivers/scsi/scsi.h
View file @ 21eb047c
......@@ -18,7 +18,6 @@
#include <linux/config.h> /* for CONFIG_SCSI_LOGGING */
#include <scsi/scsi.h>
/*
* These are the values that the SCpnt->sc_data_direction and
* SRpnt->sr_data_direction can take. These need to be set
......@@ -126,144 +125,11 @@ extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
#define SCSI_STATE_BHQUEUE 0x100a
#define SCSI_STATE_MLQUEUE 0x100b
/*
* These are the values that the owner field can take.
* They are used as an indication of who the command belongs to.
*/
#define SCSI_OWNER_HIGHLEVEL 0x100
#define SCSI_OWNER_MIDLEVEL 0x101
#define SCSI_OWNER_LOWLEVEL 0x102
#define SCSI_OWNER_ERROR_HANDLER 0x103
#define SCSI_OWNER_BH_HANDLER 0x104
#define SCSI_OWNER_NOBODY 0x105
#define IDENTIFY_BASE 0x80
#define IDENTIFY(can_disconnect, lun) (IDENTIFY_BASE |\
((can_disconnect) ? 0x40 : 0) |\
((lun) & 0x07))
/*
* 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 8 nibbles, 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 0
#define SCSI_LOG_TIMEOUT_SHIFT 3
#define SCSI_LOG_SCAN_SHIFT 6
#define SCSI_LOG_MLQUEUE_SHIFT 9
#define SCSI_LOG_MLCOMPLETE_SHIFT 12
#define SCSI_LOG_LLQUEUE_SHIFT 15
#define SCSI_LOG_LLCOMPLETE_SHIFT 18
#define SCSI_LOG_HLQUEUE_SHIFT 21
#define SCSI_LOG_HLCOMPLETE_SHIFT 24
#define SCSI_LOG_IOCTL_SHIFT 27
#define SCSI_LOG_ERROR_BITS 3
#define SCSI_LOG_TIMEOUT_BITS 3
#define SCSI_LOG_SCAN_BITS 3
#define SCSI_LOG_MLQUEUE_BITS 3
#define SCSI_LOG_MLCOMPLETE_BITS 3
#define SCSI_LOG_LLQUEUE_BITS 3
#define SCSI_LOG_LLCOMPLETE_BITS 3
#define SCSI_LOG_HLQUEUE_BITS 3
#define SCSI_LOG_HLCOMPLETE_BITS 3
#define SCSI_LOG_IOCTL_BITS 3
#ifdef CONFIG_SCSI_LOGGING
#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) \
{ \
unsigned int mask; \
\
mask = (1 << (BITS)) - 1; \
if( ((scsi_logging_level >> (SHIFT)) & mask) > (LEVEL) ) \
{ \
(CMD); \
} \
}
#define SCSI_SET_LOGGING(SHIFT, BITS, LEVEL) \
{ \
unsigned int mask; \
\
mask = ((1 << (BITS)) - 1) << SHIFT; \
scsi_logging_level = ((scsi_logging_level & ~mask) \
| ((LEVEL << SHIFT) & mask)); \
}
#else
/*
* With no logging enabled, stub these out so they don't do anything.
*/
#define SCSI_SET_LOGGING(SHIFT, BITS, LEVEL)
#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD)
#endif
/*
* 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.
*
* The 'set' versions of the macros are really intended to only be called
* from the /proc filesystem, and in production kernels this will be about
* all that is ever used. It could be useful in a debugging environment to
* bump the logging level when certain strange events are detected, however.
*/
#define SCSI_LOG_ERROR_RECOVERY(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_ERROR_SHIFT, SCSI_LOG_ERROR_BITS, LEVEL,CMD);
#define SCSI_LOG_TIMEOUT(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_TIMEOUT_SHIFT, SCSI_LOG_TIMEOUT_BITS, LEVEL,CMD);
#define SCSI_LOG_SCAN_BUS(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_SCAN_SHIFT, SCSI_LOG_SCAN_BITS, LEVEL,CMD);
#define SCSI_LOG_MLQUEUE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_MLQUEUE_SHIFT, SCSI_LOG_MLQUEUE_BITS, LEVEL,CMD);
#define SCSI_LOG_MLCOMPLETE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_MLCOMPLETE_SHIFT, SCSI_LOG_MLCOMPLETE_BITS, LEVEL,CMD);
#define SCSI_LOG_LLQUEUE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_LLQUEUE_SHIFT, SCSI_LOG_LLQUEUE_BITS, LEVEL,CMD);
#define SCSI_LOG_LLCOMPLETE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_LLCOMPLETE_SHIFT, SCSI_LOG_LLCOMPLETE_BITS, LEVEL,CMD);
#define SCSI_LOG_HLQUEUE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_HLQUEUE_SHIFT, SCSI_LOG_HLQUEUE_BITS, LEVEL,CMD);
#define SCSI_LOG_HLCOMPLETE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_HLCOMPLETE_SHIFT, SCSI_LOG_HLCOMPLETE_BITS, LEVEL,CMD);
#define SCSI_LOG_IOCTL(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_IOCTL_SHIFT, SCSI_LOG_IOCTL_BITS, LEVEL,CMD);
#define SCSI_SET_ERROR_RECOVERY_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_ERROR_SHIFT, SCSI_LOG_ERROR_BITS, LEVEL);
#define SCSI_SET_TIMEOUT_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_TIMEOUT_SHIFT, SCSI_LOG_TIMEOUT_BITS, LEVEL);
#define SCSI_SET_SCAN_BUS_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_SCAN_SHIFT, SCSI_LOG_SCAN_BITS, LEVEL);
#define SCSI_SET_MLQUEUE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_MLQUEUE_SHIFT, SCSI_LOG_MLQUEUE_BITS, LEVEL);
#define SCSI_SET_MLCOMPLETE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_MLCOMPLETE_SHIFT, SCSI_LOG_MLCOMPLETE_BITS, LEVEL);
#define SCSI_SET_LLQUEUE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_LLQUEUE_SHIFT, SCSI_LOG_LLQUEUE_BITS, LEVEL);
#define SCSI_SET_LLCOMPLETE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_LLCOMPLETE_SHIFT, SCSI_LOG_LLCOMPLETE_BITS, LEVEL);
#define SCSI_SET_HLQUEUE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_HLQUEUE_SHIFT, SCSI_LOG_HLQUEUE_BITS, LEVEL);
#define SCSI_SET_HLCOMPLETE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_HLCOMPLETE_SHIFT, SCSI_LOG_HLCOMPLETE_BITS, LEVEL);
#define SCSI_SET_IOCTL_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_IOCTL_SHIFT, SCSI_LOG_IOCTL_BITS, LEVEL);
/* host byte codes */
#define DID_OK 0x00 /* NO error */
#define DID_NO_CONNECT 0x01 /* Couldn't connect before timeout period */
......@@ -356,6 +222,7 @@ extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
* Forward-declaration of structs for prototypes.
*/
struct Scsi_Host;
struct scsi_target;
struct scatterlist;
/*
......@@ -365,24 +232,12 @@ typedef struct scsi_device Scsi_Device;
typedef struct scsi_cmnd Scsi_Cmnd;
typedef struct scsi_request Scsi_Request;
#define SCSI_CMND_MAGIC 0xE25C23A5
#define SCSI_REQ_MAGIC 0x75F6D354
/*
* Here is where we prototype most of the mid-layer.
*/
extern unsigned int scsi_logging_level; /* What do we log? */
/*
* These are the error handling functions defined in scsi_error.c
*/
extern void scsi_times_out(Scsi_Cmnd * SCpnt);
extern void scsi_add_timer(Scsi_Cmnd * SCset, int timeout,
void (*complete) (Scsi_Cmnd *));
extern int scsi_delete_timer(Scsi_Cmnd * SCset);
extern void scsi_error_handler(void *host);
extern int scsi_decide_disposition(Scsi_Cmnd * SCpnt);
extern int scsi_block_when_processing_errors(Scsi_Device *);
extern void scsi_sleep(int);
......@@ -396,23 +251,12 @@ extern int scsi_partsize(unsigned char *buf, unsigned long capacity,
/*
* Prototypes for functions in scsi_lib.c
*/
extern int scsi_maybe_unblock_host(Scsi_Device * SDpnt);
extern void scsi_setup_cmd_retry(Scsi_Cmnd *SCpnt);
extern void scsi_io_completion(Scsi_Cmnd * SCpnt, int good_sectors,
int block_sectors);
extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
extern void scsi_queue_next_request(request_queue_t *q, struct scsi_cmnd *cmd);
extern request_queue_t *scsi_alloc_queue(struct scsi_device *sdev);
extern void scsi_free_queue(request_queue_t *q);
extern int scsi_init_queue(void);
extern void scsi_exit_queue(void);
/*
* Prototypes for functions in scsi.c
*/
extern int scsi_dispatch_cmd(Scsi_Cmnd * SCpnt);
extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
extern struct scsi_cmnd *scsi_get_command(struct scsi_device *dev, int flags);
extern void scsi_put_command(struct scsi_cmnd *cmd);
extern void scsi_adjust_queue_depth(Scsi_Device *, int, int);
......@@ -422,13 +266,6 @@ extern void scsi_slave_detach(struct scsi_device *);
extern int scsi_device_get(struct scsi_device *);
extern void scsi_device_put(struct scsi_device *);
extern void scsi_set_device_offline(struct scsi_device *);
extern void scsi_done(Scsi_Cmnd * SCpnt);
extern void scsi_finish_command(Scsi_Cmnd *);
extern int scsi_retry_command(Scsi_Cmnd *);
extern int scsi_attach_device(struct scsi_device *);
extern void scsi_detach_device(struct scsi_device *);
extern void scsi_rescan_device(struct scsi_device *);
extern int scsi_get_device_flags(unsigned char *vendor, unsigned char *model);
/*
* Newer request-based interfaces.
......@@ -438,30 +275,10 @@ extern void scsi_release_request(Scsi_Request *);
extern void scsi_wait_req(Scsi_Request *, const void *cmnd,
void *buffer, unsigned bufflen,
int timeout, int retries);
extern void scsi_do_req(Scsi_Request *, const void *cmnd,
void *buffer, unsigned bufflen,
void (*done) (struct scsi_cmnd *),
int timeout, int retries);
extern int scsi_insert_special_req(Scsi_Request * SRpnt, int);
extern void scsi_init_cmd_from_req(Scsi_Cmnd *, Scsi_Request *);
/*
* Prototypes for functions in scsi_proc.c
*/
#ifdef CONFIG_PROC_FS
extern int scsi_init_procfs(void);
extern void scsi_exit_procfs(void);
extern void scsi_proc_host_add(struct Scsi_Host *);
extern void scsi_proc_host_rm(struct Scsi_Host *);
#else
static inline int scsi_init_procfs(void) { return 0; }
static inline void scsi_exit_procfs(void) { ; }
static inline void scsi_proc_host_add(struct Scsi_Host *);
static inline void scsi_proc_host_rm(struct Scsi_Host *);
#endif /* CONFIG_PROC_FS */
/*
* Prototypes for functions in scsi_scan.c
......@@ -486,40 +303,6 @@ extern int print_msg(const unsigned char *);
extern const char *scsi_sense_key_string(unsigned char);
extern const char *scsi_extd_sense_format(unsigned char, unsigned char);
/*
* dev_info: for the black/white list in the old scsi_static_device_list
*/
struct dev_info {
char *vendor;
char *model;
char *revision; /* revision known to be bad, unused */
unsigned flags;
};
extern struct dev_info scsi_static_device_list[];
/*
* scsi_dev_info_list: structure to hold black/white listed devices.
*/
struct scsi_dev_info_list {
struct list_head dev_info_list;
char vendor[8];
char model[16];
unsigned flags;
unsigned compatible; /* for use with scsi_static_device_list entries */
};
extern struct list_head scsi_dev_info_list;
extern int scsi_dev_info_list_add_str(char *);
/*
* scsi_target: representation of a scsi target, for now, this is only
* used for single_lun devices. If no one has active IO to the target,
* starget_sdev_user is NULL, else it points to the active sdev.
*/
struct scsi_target {
struct scsi_device *starget_sdev_user;
unsigned int starget_refcnt;
};
/*
* The scsi_device struct contains what we know about each given scsi
......@@ -816,11 +599,6 @@ struct scsi_cmnd {
unsigned long pid; /* Process ID, starts at 0 */
};
/*
* Flag bit for the internal_timeout array
*/
#define NORMAL_TIMEOUT 0
/*
* Definitions and prototypes used for scsi mid-level queue.
*/
......@@ -829,8 +607,7 @@ struct scsi_cmnd {
#define SCSI_MLQUEUE_EH_RETRY 0x1057
/*
* old style reset request from external source
* (private to sg.c and scsi_error.c, supplied by scsi_obsolete.c)
* Reset request from external source
*/
#define SCSI_TRY_RESET_DEVICE 1
#define SCSI_TRY_RESET_BUS 2
......@@ -922,34 +699,6 @@ static inline Scsi_Cmnd *scsi_find_tag(Scsi_Device *SDpnt, int tag) {
return (Scsi_Cmnd *)req->special;
}
#define scsi_eh_eflags_chk(scp, flags) (scp->eh_eflags & flags)
#define scsi_eh_eflags_set(scp, flags) do { \
scp->eh_eflags |= flags; \
} while(0)
#define scsi_eh_eflags_clr(scp, flags) do { \
scp->eh_eflags &= ~flags; \
} while(0)
#define scsi_eh_eflags_clr_all(scp) (scp->eh_eflags = 0)
/*
* Scsi Error Handler Flags
*/
#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
#define SCSI_EH_REC_TIMEOUT 0x0002 /* EH retry timed out */
#define SCSI_SENSE_VALID(scmd) ((scmd->sense_buffer[0] & 0x70) == 0x70)
extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
int scsi_set_medium_removal(Scsi_Device *dev, char state);
extern int scsi_device_register(struct scsi_device *);
extern void scsi_device_unregister(struct scsi_device *);
extern int scsi_sysfs_register(void);
extern void scsi_sysfs_unregister(void);
#endif /* _SCSI_H */
drivers/scsi/scsi_debug.c
View file @ 21eb047c
......@@ -52,6 +52,7 @@
#include <linux/version.h>
#endif
#include "scsi_logging.h"
#include "scsi_debug.h"
static const char * scsi_debug_version_str = "Version: 1.69 (20030329)";
......
drivers/scsi/scsi_error.c
View file @ 21eb047c
......@@ -28,6 +28,9 @@
#include "scsi.h"
#include "hosts.h"
#include "scsi_priv.h"
#include "scsi_logging.h"
#ifdef DEBUG
#define SENSE_TIMEOUT SCSI_TIMEOUT
#else
......
drivers/scsi/scsi_ioctl.c
View file @ 21eb047c
......@@ -23,6 +23,8 @@
#include "hosts.h"
#include <scsi/scsi_ioctl.h>
#include "scsi_logging.h"
#define NORMAL_RETRIES 5
#define IOCTL_NORMAL_TIMEOUT (10 * HZ)
#define FORMAT_UNIT_TIMEOUT (2 * 60 * 60 * HZ)
......
drivers/scsi/scsi_lib.c
View file @ 21eb047c
......@@ -19,6 +19,9 @@
#include "scsi.h"
#include "hosts.h"
#include "scsi_priv.h"
#include "scsi_logging.h"
#define SG_MEMPOOL_NR 5
#define SG_MEMPOOL_SIZE 32
......
drivers/scsi/scsi_logging.h 0 → 100644
View file @ 21eb047c
#ifndef _SCSI_LOGGING_H
#define _SCSI_LOGGING_H
#include <linux/config.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
* 8 nibbles, 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 0
#define SCSI_LOG_TIMEOUT_SHIFT 3
#define SCSI_LOG_SCAN_SHIFT 6
#define SCSI_LOG_MLQUEUE_SHIFT 9
#define SCSI_LOG_MLCOMPLETE_SHIFT 12
#define SCSI_LOG_LLQUEUE_SHIFT 15
#define SCSI_LOG_LLCOMPLETE_SHIFT 18
#define SCSI_LOG_HLQUEUE_SHIFT 21
#define SCSI_LOG_HLCOMPLETE_SHIFT 24
#define SCSI_LOG_IOCTL_SHIFT 27
#define SCSI_LOG_ERROR_BITS 3
#define SCSI_LOG_TIMEOUT_BITS 3
#define SCSI_LOG_SCAN_BITS 3
#define SCSI_LOG_MLQUEUE_BITS 3
#define SCSI_LOG_MLCOMPLETE_BITS 3
#define SCSI_LOG_LLQUEUE_BITS 3
#define SCSI_LOG_LLCOMPLETE_BITS 3
#define SCSI_LOG_HLQUEUE_BITS 3
#define SCSI_LOG_HLCOMPLETE_BITS 3
#define SCSI_LOG_IOCTL_BITS 3
#ifdef CONFIG_SCSI_LOGGING
extern unsigned int scsi_logging_level;
#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) \
{ \
unsigned int mask = (1 << (BITS)) - 1; \
if (((scsi_logging_level >> (SHIFT)) & mask) > (LEVEL)) \
(CMD); \
}
#define SCSI_SET_LOGGING(SHIFT, BITS, LEVEL) \
{ \
unsigned int mask = ((1 << (BITS)) - 1) << SHIFT; \
scsi_logging_level = ((scsi_logging_level & ~mask) \
| ((LEVEL << SHIFT) & mask)); \
}
#else
/*
* With no logging enabled, stub these out so they don't do anything.
*/
#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD)
#define SCSI_SET_LOGGING(SHIFT, BITS, LEVEL)
#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.
*
* The 'set' versions of the macros are really intended to only be called
* from the /proc filesystem, and in production kernels this will be about
* all that is ever used. It could be useful in a debugging environment to
* bump the logging level when certain strange events are detected, however.
*/
#define SCSI_LOG_ERROR_RECOVERY(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_ERROR_SHIFT, SCSI_LOG_ERROR_BITS, LEVEL,CMD);
#define SCSI_LOG_TIMEOUT(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_TIMEOUT_SHIFT, SCSI_LOG_TIMEOUT_BITS, LEVEL,CMD);
#define SCSI_LOG_SCAN_BUS(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_SCAN_SHIFT, SCSI_LOG_SCAN_BITS, LEVEL,CMD);
#define SCSI_LOG_MLQUEUE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_MLQUEUE_SHIFT, SCSI_LOG_MLQUEUE_BITS, LEVEL,CMD);
#define SCSI_LOG_MLCOMPLETE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_MLCOMPLETE_SHIFT, SCSI_LOG_MLCOMPLETE_BITS, LEVEL,CMD);
#define SCSI_LOG_LLQUEUE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_LLQUEUE_SHIFT, SCSI_LOG_LLQUEUE_BITS, LEVEL,CMD);
#define SCSI_LOG_LLCOMPLETE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_LLCOMPLETE_SHIFT, SCSI_LOG_LLCOMPLETE_BITS, LEVEL,CMD);
#define SCSI_LOG_HLQUEUE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_HLQUEUE_SHIFT, SCSI_LOG_HLQUEUE_BITS, LEVEL,CMD);
#define SCSI_LOG_HLCOMPLETE(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_HLCOMPLETE_SHIFT, SCSI_LOG_HLCOMPLETE_BITS, LEVEL,CMD);
#define SCSI_LOG_IOCTL(LEVEL,CMD) \
SCSI_CHECK_LOGGING(SCSI_LOG_IOCTL_SHIFT, SCSI_LOG_IOCTL_BITS, LEVEL,CMD);
#define SCSI_SET_ERROR_RECOVERY_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_ERROR_SHIFT, SCSI_LOG_ERROR_BITS, LEVEL);
#define SCSI_SET_TIMEOUT_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_TIMEOUT_SHIFT, SCSI_LOG_TIMEOUT_BITS, LEVEL);
#define SCSI_SET_SCAN_BUS_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_SCAN_SHIFT, SCSI_LOG_SCAN_BITS, LEVEL);
#define SCSI_SET_MLQUEUE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_MLQUEUE_SHIFT, SCSI_LOG_MLQUEUE_BITS, LEVEL);
#define SCSI_SET_MLCOMPLETE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_MLCOMPLETE_SHIFT, SCSI_LOG_MLCOMPLETE_BITS, LEVEL);
#define SCSI_SET_LLQUEUE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_LLQUEUE_SHIFT, SCSI_LOG_LLQUEUE_BITS, LEVEL);
#define SCSI_SET_LLCOMPLETE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_LLCOMPLETE_SHIFT, SCSI_LOG_LLCOMPLETE_BITS, LEVEL);
#define SCSI_SET_HLQUEUE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_HLQUEUE_SHIFT, SCSI_LOG_HLQUEUE_BITS, LEVEL);
#define SCSI_SET_HLCOMPLETE_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_HLCOMPLETE_SHIFT, SCSI_LOG_HLCOMPLETE_BITS, LEVEL);
#define SCSI_SET_IOCTL_LOGGING(LEVEL) \
SCSI_SET_LOGGING(SCSI_LOG_IOCTL_SHIFT, SCSI_LOG_IOCTL_BITS, LEVEL);
#endif /* _SCSI_LOGGING_H */
drivers/scsi/scsi_priv.h 0 → 100644
View file @ 21eb047c
#ifndef _SCSI_PRIV_H
#define _SCSI_PRIV_H
/*
* These are the values that the owner field can take.
* They are used as an indication of who the command belongs to.
*/
#define SCSI_OWNER_HIGHLEVEL 0x100
#define SCSI_OWNER_MIDLEVEL 0x101
#define SCSI_OWNER_LOWLEVEL 0x102
#define SCSI_OWNER_ERROR_HANDLER 0x103
#define SCSI_OWNER_BH_HANDLER 0x104
#define SCSI_OWNER_NOBODY 0x105
/*
* Magic values for certain scsi structs. Shouldn't ever be used.
*/
#define SCSI_CMND_MAGIC 0xE25C23A5
#define SCSI_REQ_MAGIC 0x75F6D354
/*
* Flag bit for the internal_timeout array
*/
#define NORMAL_TIMEOUT 0
/*
* Scsi Error Handler Flags
*/
#define scsi_eh_eflags_chk(scp, flags) \
((scp)->eh_eflags & (flags))
#define scsi_eh_eflags_set(scp, flags) \
do { (scp)->eh_eflags |= (flags); } while(0)
#define scsi_eh_eflags_clr(scp, flags) \
do { (scp)->eh_eflags &= ~(flags); } while(0)
#define scsi_eh_eflags_clr_all(scp) \
(scp->eh_eflags = 0)
#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
#define SCSI_EH_REC_TIMEOUT 0x0002 /* EH retry timed out */
#define SCSI_SENSE_VALID(scmd) \
(((scmd)->sense_buffer[0] & 0x70) == 0x70)
/*
* scsi_target: representation of a scsi target, for now, this is only
* used for single_lun devices. If no one has active IO to the target,
* starget_sdev_user is NULL, else it points to the active sdev.
*/
struct scsi_target {
struct scsi_device *starget_sdev_user;
unsigned int starget_refcnt;
};
/* hosts.c */
extern void scsi_host_busy_inc(struct Scsi_Host *, Scsi_Device *);
extern void scsi_host_busy_dec_and_test(struct Scsi_Host *, Scsi_Device *);
extern struct Scsi_Host *scsi_host_get_next(struct Scsi_Host *);
extern void scsi_host_init(void);
/* scsi.c */
extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
extern void scsi_done(struct scsi_cmnd *cmd);
extern void scsi_finish_command(struct scsi_cmnd *cmd);
extern int scsi_retry_command(struct scsi_cmnd *cmd);
extern int scsi_attach_device(struct scsi_device *sdev);
extern void scsi_detach_device(struct scsi_device *sdev);
extern void scsi_rescan_device(struct scsi_device *sdev);
extern int scsi_get_device_flags(unsigned char *vendor, unsigned char *model);
extern int scsi_insert_special_req(struct scsi_request *sreq, int);
extern void scsi_init_cmd_from_req(struct scsi_cmnd *cmd,
struct scsi_request *sreq);
/* scsi_error.c */
extern void scsi_times_out(struct scsi_cmnd *cmd);
extern void scsi_error_handler(void *host);
extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
/* scsi_lib.c */
extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
extern void scsi_setup_cmd_retry(struct scsi_cmnd *cmd);
extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
extern void scsi_queue_next_request(struct request_queue *q,
struct scsi_cmnd *cmd);
extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
extern void scsi_free_queue(struct request_queue *q);
extern int scsi_init_queue(void);
extern void scsi_exit_queue(void);
/* scsi_proc.c */
#ifdef CONFIG_PROC_FS
extern void scsi_proc_host_add(struct Scsi_Host *);
extern void scsi_proc_host_rm(struct Scsi_Host *);
extern int scsi_init_procfs(void);
extern void scsi_exit_procfs(void);
#else
# define scsi_proc_host_add(shost) do { } while (0)
# define scsi_proc_host_rm(shost) do { } while (0)
# define scsi_init_procfs() (0)
# define scsi_exit_procfs do { } while (0)
#endif /* CONFIG_PROC_FS */
/* scsi_scan.c */
extern void scsi_scan_host(struct Scsi_Host *shost);
extern void scsi_forget_host(struct Scsi_Host *shost);
/* scsi_sysfs.c */
extern int scsi_device_register(struct scsi_device *);
extern void scsi_device_unregister(struct scsi_device *);
extern int scsi_upper_driver_register(struct Scsi_Device_Template *);
extern void scsi_upper_driver_unregister(struct Scsi_Device_Template *);
extern int scsi_sysfs_register(void);
extern void scsi_sysfs_unregister(void);
/*
* dev_info: for the black/white list in the old scsi_static_device_list
*/
struct dev_info {
char *vendor;
char *model;
char *revision; /* revision known to be bad, unused */
unsigned flags;
};
extern struct dev_info scsi_static_device_list[];
/*
* scsi_dev_info_list: structure to hold black/white listed devices.
*/
struct scsi_dev_info_list {
struct list_head dev_info_list;
char vendor[8];
char model[16];
unsigned flags;
unsigned compatible; /* for use with scsi_static_device_list entries */
};
extern struct list_head scsi_dev_info_list;
extern int scsi_dev_info_list_add_str(char *);
#endif /* _SCSI_PRIV_H */
drivers/scsi/scsi_proc.c
View file @ 21eb047c
......@@ -29,6 +29,10 @@
#include "scsi.h"
#include "hosts.h"
#include "scsi_priv.h"
#include "scsi_logging.h"
/* 4K page size, but our output routines, use some slack for overruns */
#define PROC_BLOCK_SIZE (3*1024)
......
drivers/scsi/scsi_scan.c
View file @ 21eb047c
......@@ -33,9 +33,9 @@
#include "scsi.h"
#include "hosts.h"
#ifdef CONFIG_KMOD
#include <linux/kmod.h>
#endif
#include "scsi_priv.h"
#include "scsi_logging.h"
/*
* Flags for SCSI devices that need special treatment
......
drivers/scsi/scsi_syms.c
View file @ 21eb047c
......@@ -104,8 +104,6 @@ EXPORT_SYMBOL(scsi_calculate_bounce_limit);
/*
* Externalize timers so that HBAs can safely start/restart commands.
*/
extern void scsi_add_timer(Scsi_Cmnd *, int, void ((*) (Scsi_Cmnd *)));
extern int scsi_delete_timer(Scsi_Cmnd *);
EXPORT_SYMBOL(scsi_add_timer);
EXPORT_SYMBOL(scsi_delete_timer);
......
drivers/scsi/scsi_sysfs.c
View file @ 21eb047c
......@@ -14,6 +14,7 @@
#include "scsi.h"
#include "hosts.h"
#include "scsi_priv.h"
/*
* shost_show_function: macro to create an attr function that can be used to
......
drivers/scsi/sd.c
View file @ 21eb047c
......@@ -52,6 +52,9 @@
#include <scsi/scsi_ioctl.h>
#include <scsi/scsicam.h>
#include "scsi_logging.h"
/*
* Remaining dev_t-handling stuff
*/
......
drivers/scsi/sg.c
View file @ 21eb047c
......@@ -67,6 +67,8 @@ static int sg_version_num = 30528; /* 2 digits for each component */
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
#include "scsi_logging.h"
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
static int sg_proc_init(void);
......
drivers/scsi/sr.c
View file @ 21eb047c
......@@ -50,6 +50,7 @@
#include "hosts.h"
#include <scsi/scsi_ioctl.h> /* For the door lock/unlock commands */
#include "scsi_logging.h"
#include "sr.h"
......
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