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scsi logging update

PATCH Superseded Hannes Reinecke 4 participants 49 messages Sep 3, 2014 – Sep 14, 2014

Subsystems (9)

v2 of 8 Superseded Latest is v8 →

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#0 lore raw

v2 cover scsi logging update

Hi all,

here's the second version of my scsi logging updates. Main feature is the update to have all logging statements in one line so that they won't be broken up even under high load.
This will dramatically improve debugging.

Additionally all printk() statements are moved to dev_printk() variants to ensure proper device tagging and keep the systemd journal happy.

To achieve this I had to use a on-stack buffer for formatting opcodes and sense codes; so the stack usage will increase somewhat.

This is the second iteration; in this I've included the reviews from Christoph Hellwig and Robert Elliot.

Reviews, comments etc are welcome.

Hannes Reinecke (20):
Remove scsi_cmd_print_sense_hdr()
aha152x: Debug output update and whitespace cleanup
sd: Remove scsi_print_sense() in sd_done()
scsi: introduce sdev_prefix_printk()
scsi: Use sdev as argument for sense code printing
scsi: stop decoding if scsi_normalize_sense() fails
scsi: do not decode sense extras
scsi: use 'bool' as return value for scsi_normalize_sense()
scsi: remove scsi_print_status()
Implement scsi_opcode_sa_name
scsi: Use scsi_print_command() where possible
scsi: merge print_opcode_name()
scsi: consolidate opcode lookup in scsi_opcode_sa_name()
scsi: use local buffer for printing CDB
libata: use __scsi_print_command()
scsi: separate out scsi_retval_string()
scsi: separate out scsi_host_hostbyte() and scsi_show_driverbyte()
scsi: remove scsi_show_result()
sd: Reduce logging output
scsi_error: format abort error message

 drivers/ata/libata-eh.c      |  12 +-
 drivers/scsi/53c700.c        |   2 +-
 drivers/scsi/aha152x.c       | 950 ++++++++++---------------------------------
 drivers/scsi/arm/acornscsi.c |   9 +-
 drivers/scsi/arm/fas216.c    |  30 +-
 drivers/scsi/ch.c            |   7 +-
 drivers/scsi/constants.c     | 620 ++++++++++++----------------
 drivers/scsi/osst.c          |   8 +-
 drivers/scsi/scsi.c          |  36 +-
 drivers/scsi/scsi_error.c    |  20 +-
 drivers/scsi/scsi_ioctl.c    |   2 +-
 drivers/scsi/scsi_lib.c      |   6 +-
 drivers/scsi/sd.c            |  85 ++--
 drivers/scsi/sg.c            |   2 +-
 drivers/scsi/sr_ioctl.c      |  15 +-
 drivers/scsi/st.c            |   6 +-
 drivers/scsi/storvsc_drv.c   |   3 +-
 include/scsi/scsi_dbg.h      |  26 +-
 include/scsi/scsi_device.h   |   9 +
 include/scsi/scsi_eh.h       |  12 +-
 20 files changed, 621 insertions(+), 1239 deletions(-)
Signature · 1 line
1.8.5.2
#1 lore raw

PATCH v2 1/20 Remove scsi_cmd_print_sense_hdr()

Unused.

---
 drivers/scsi/constants.c | 14 --------------
 include/scsi/scsi_dbg.h  |  2 --
 2 files changed, 16 deletions(-)
drivers/scsi/constants.c +0 -14
index d35a5d6..2f44707 100644
@@ -1428,20 +1428,6 @@ scsi_print_sense_hdr(const char *name, struct scsi_sense_hdr *sshdr)
 }
 EXPORT_SYMBOL(scsi_print_sense_hdr);
 
-/*
- * Print normalized SCSI sense header with device information and a prefix.
- */
-void
-scsi_cmd_print_sense_hdr(struct scsi_cmnd *scmd, const char *desc,
-			  struct scsi_sense_hdr *sshdr)
-{
-	scmd_printk(KERN_INFO, scmd, "%s: ", desc);
-	scsi_show_sense_hdr(sshdr);
-	scmd_printk(KERN_INFO, scmd, "%s: ", desc);
-	scsi_show_extd_sense(sshdr->asc, sshdr->ascq);
-}
-EXPORT_SYMBOL(scsi_cmd_print_sense_hdr);
-
 static void
 scsi_decode_sense_buffer(const unsigned char *sense_buffer, int sense_len,
 		       struct scsi_sense_hdr *sshdr)
include/scsi/scsi_dbg.h +0 -2
index e89844c..5a43a4c 100644
@@ -9,8 +9,6 @@ extern void __scsi_print_command(unsigned char *);
 extern void scsi_show_extd_sense(unsigned char, unsigned char);
 extern void scsi_show_sense_hdr(struct scsi_sense_hdr *);
 extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
-extern void scsi_cmd_print_sense_hdr(struct scsi_cmnd *, const char *,
-				     struct scsi_sense_hdr *);
 extern void scsi_print_sense(char *, struct scsi_cmnd *);
 extern void __scsi_print_sense(const char *name,
 			       const unsigned char *sense_buffer,
Signature · 1 line
1.8.5.2
#2 lore raw

PATCH v2 2/20 aha152x: Debug output update and whitespace cleanup

In reply to Hannes Reinecke

Remove all uncommented debugging code and move all printk() statements over to dev_printk().
And while we're at it we should be doing a whitespace cleanup, too.

---
 drivers/scsi/aha152x.c | 944 +++++++++++--------------------------------------
 1 file changed, 205 insertions(+), 739 deletions(-)
drivers/scsi/aha152x.c +205 -739
index e77b72f..447568a 100644
@@ -230,7 +230,7 @@
  *
  *
  **************************************************************************
- 
+
  see Documentation/scsi/aha152x.txt for configuration details
 
  **************************************************************************/
@@ -279,45 +279,11 @@ static LIST_HEAD(aha152x_host_list);
 #error define AUTOCONF or SETUP0
 #endif
 
-#if defined(AHA152X_DEBUG)
-#define DEBUG_DEFAULT debug_eh
-
-#define DPRINTK(when,msgs...) \
-	do { if(HOSTDATA(shpnt)->debug & (when)) printk(msgs); } while(0)
-
-#define DO_LOCK(flags)	\
-	do { \
-		if(spin_is_locked(&QLOCK)) { \
-			DPRINTK(debug_intr, DEBUG_LEAD "(%s:%d) already locked at %s:%d\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
-		} \
-		DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locking\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
-		spin_lock_irqsave(&QLOCK,flags); \
-		DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) locked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
-		QLOCKER=__func__; \
-		QLOCKERL=__LINE__; \
-	} while(0)
-
-#define DO_UNLOCK(flags)	\
-	do { \
-		DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocking (locked at %s:%d)\n", CMDINFO(CURRENT_SC), __func__, __LINE__, QLOCKER, QLOCKERL); \
-		spin_unlock_irqrestore(&QLOCK,flags); \
-		DPRINTK(debug_locking, DEBUG_LEAD "(%s:%d) unlocked\n", CMDINFO(CURRENT_SC), __func__, __LINE__); \
-		QLOCKER="(not locked)"; \
-		QLOCKERL=0; \
-	} while(0)
-
-#else
-#define DPRINTK(when,msgs...)
 #define	DO_LOCK(flags)		spin_lock_irqsave(&QLOCK,flags)
 #define	DO_UNLOCK(flags)	spin_unlock_irqrestore(&QLOCK,flags)
-#endif
 
 #define LEAD		"(scsi%d:%d:%d) "
-#define WARN_LEAD	KERN_WARNING	LEAD
 #define INFO_LEAD	KERN_INFO	LEAD
-#define NOTE_LEAD	KERN_NOTICE	LEAD
-#define ERR_LEAD	KERN_ERR	LEAD
-#define DEBUG_LEAD	KERN_DEBUG	LEAD
 #define CMDINFO(cmd) \
 			(cmd) ? ((cmd)->device->host->host_no) : -1, \
                         (cmd) ? ((cmd)->device->id & 0x0f) : -1, \
@@ -345,10 +311,10 @@ CMD_INC_RESID(struct scsi_cmnd *cmd, int inc)
 
 enum {
 	not_issued	= 0x0001,	/* command not yet issued */
-	selecting	= 0x0002, 	/* target is beeing selected */
+	selecting	= 0x0002,	/* target is beeing selected */
 	identified	= 0x0004,	/* IDENTIFY was sent */
 	disconnected	= 0x0008,	/* target disconnected */
-	completed	= 0x0010,	/* target sent COMMAND COMPLETE */ 
+	completed	= 0x0010,	/* target sent COMMAND COMPLETE */
 	aborted		= 0x0020,	/* ABORT was sent */
 	resetted	= 0x0040,	/* BUS DEVICE RESET was sent */
 	spiordy		= 0x0080,	/* waiting for SPIORDY to raise */
@@ -396,7 +362,6 @@ static int exttrans[] = {0, 0};
 module_param_array(exttrans, int, NULL, 0);
 MODULE_PARM_DESC(exttrans,"use extended translation");
 
-#if !defined(AHA152X_DEBUG)
 static int aha152x[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
 module_param_array(aha152x, int, NULL, 0);
 MODULE_PARM_DESC(aha152x, "parameters for first controller");
@@ -404,19 +369,6 @@ MODULE_PARM_DESC(aha152x, "parameters for first controller");
 static int aha152x1[] = {0, 11, 7, 1, 1, 0, DELAY_DEFAULT, 0};
 module_param_array(aha152x1, int, NULL, 0);
 MODULE_PARM_DESC(aha152x1, "parameters for second controller");
-#else
-static int debug[] = {DEBUG_DEFAULT, DEBUG_DEFAULT};
-module_param_array(debug, int, NULL, 0);
-MODULE_PARM_DESC(debug, "flags for driver debugging");
-
-static int aha152x[]   = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
-module_param_array(aha152x, int, NULL, 0);
-MODULE_PARM_DESC(aha152x, "parameters for first controller");
-
-static int aha152x1[]  = {0, 11, 7, 1, 1, 1, DELAY_DEFAULT, 0, DEBUG_DEFAULT};
-module_param_array(aha152x1, int, NULL, 0);
-MODULE_PARM_DESC(aha152x1, "parameters for second controller");
-#endif /* !defined(AHA152X_DEBUG) */
 #endif /* MODULE */
 
 #ifdef __ISAPNP__
@@ -446,7 +398,7 @@ static struct scsi_host_template aha152x_driver_template;
 /*
  * internal states of the host
  *
- */ 
+ */
 enum aha152x_state {
 	idle=0,
 	unknown,
@@ -485,24 +437,16 @@ struct aha152x_hostdata {
 	spinlock_t lock;
 		/* host lock */
 
-#if defined(AHA152X_DEBUG)
-	const char *locker;
-		/* which function has the lock */
-	int lockerl;	/* where did it get it */
-
-	int debug;	/* current debugging setting */
-#endif
-
 #if defined(AHA152X_STAT)
-	int           total_commands;
+	int	      total_commands;
 	int	      disconnections;
 	int	      busfree_without_any_action;
 	int	      busfree_without_old_command;
 	int	      busfree_without_new_command;
 	int	      busfree_without_done_command;
 	int	      busfree_with_check_condition;
-	int           count[maxstate];
-	int           count_trans[maxstate];
+	int	      count[maxstate];
+	int	      count_trans[maxstate];
 	unsigned long time[maxstate];
 #endif
 
@@ -514,7 +458,7 @@ struct aha152x_hostdata {
 	int delay;		/* reset out delay */
 	int ext_trans;		/* extended translation enabled */
 
-	int swint; 		/* software-interrupt was fired during detect() */
+	int swint;		/* software-interrupt was fired during detect() */
 	int service;		/* bh needs to be run */
 	int in_intr;		/* bh is running */
 
@@ -543,7 +487,7 @@ struct aha152x_hostdata {
 	unsigned char msgi[256];
 		/* received message bytes */
 
-	int msgo_i, msgo_len;	
+	int msgo_i, msgo_len;
 		/* number of sent bytes and length of current messages */
 	unsigned char msgo[256];
 		/* pending messages */
@@ -689,7 +633,6 @@ static void aha152x_error(struct Scsi_Host *shpnt, char *msg);
 static void done(struct Scsi_Host *shpnt, int error);
 
 /* diagnostics */
-static void disp_ports(struct Scsi_Host *shpnt);
 static void show_command(Scsi_Cmnd * ptr);
 static void show_queues(struct Scsi_Host *shpnt);
 static void disp_enintr(struct Scsi_Host *shpnt);
@@ -812,10 +755,6 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
 	DELAY       = setup->delay;
 	EXT_TRANS   = setup->ext_trans;
 
-#if defined(AHA152X_DEBUG)
-	HOSTDATA(shpnt)->debug = setup->debug;
-#endif
-
 	SETPORT(SCSIID, setup->scsiid << 4);
 	shpnt->this_id = setup->scsiid;
 
@@ -941,31 +880,24 @@ void aha152x_release(struct Scsi_Host *shpnt)
  * setup controller to generate interrupts depending
  * on current state (lock has to be acquired)
  *
- */ 
+ */
 static int setup_expected_interrupts(struct Scsi_Host *shpnt)
 {
 	if(CURRENT_SC) {
 		CURRENT_SC->SCp.phase |= 1 << 16;
-	
+
 		if(CURRENT_SC->SCp.phase & selecting) {
-			DPRINTK(debug_intr, DEBUG_LEAD "expecting: (seldo) (seltimo) (seldi)\n", CMDINFO(CURRENT_SC));
 			SETPORT(SSTAT1, SELTO);
 			SETPORT(SIMODE0, ENSELDO | (DISCONNECTED_SC ? ENSELDI : 0));
 			SETPORT(SIMODE1, ENSELTIMO);
 		} else {
-			DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (busfree) %s\n", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.phase & spiordy ? "(spiordy)" : "");
 			SETPORT(SIMODE0, (CURRENT_SC->SCp.phase & spiordy) ? ENSPIORDY : 0);
-			SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); 
+			SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
 		}
 	} else if(STATE==seldi) {
-		DPRINTK(debug_intr, DEBUG_LEAD "expecting: (phase change) (identify)\n", CMDINFO(CURRENT_SC));
 		SETPORT(SIMODE0, 0);
-		SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE); 
+		SETPORT(SIMODE1, ENPHASEMIS | ENSCSIRST | ENSCSIPERR | ENBUSFREE);
 	} else {
-		DPRINTK(debug_intr, DEBUG_LEAD "expecting: %s %s\n",
-			CMDINFO(CURRENT_SC),
-			DISCONNECTED_SC ? "(reselection)" : "",
-			ISSUE_SC ? "(busfree)" : "");
 		SETPORT(SIMODE0, DISCONNECTED_SC ? ENSELDI : 0);
 		SETPORT(SIMODE1, ENSCSIRST | ( (ISSUE_SC||DONE_SC) ? ENBUSFREE : 0));
 	}
@@ -977,7 +909,7 @@ static int setup_expected_interrupts(struct Scsi_Host *shpnt)
 }
 
 
-/* 
+/*
  *  Queue a command and setup interrupts for a free bus.
  */
 static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
@@ -986,15 +918,6 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
 	struct Scsi_Host *shpnt = SCpnt->device->host;
 	unsigned long flags;
 
-#if defined(AHA152X_DEBUG)
-	if (HOSTDATA(shpnt)->debug & debug_queue) {
-		printk(INFO_LEAD "queue: %p; cmd_len=%d pieces=%d size=%u cmnd=",
-		       CMDINFO(SCpnt), SCpnt, SCpnt->cmd_len,
-		       scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
-		__scsi_print_command(SCpnt->cmnd);
-	}
-#endif
-
 	SCpnt->scsi_done	= done;
 	SCpnt->SCp.phase	= not_issued | phase;
 	SCpnt->SCp.Status	= 0x1; /* Ilegal status by SCSI standard */
@@ -1004,13 +927,13 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
 
 	if(SCpnt->SCp.phase & (resetting|check_condition)) {
 		if (!SCpnt->host_scribble || SCSEM(SCpnt) || SCNEXT(SCpnt)) {
-			printk(ERR_LEAD "cannot reuse command\n", CMDINFO(SCpnt));
+			scmd_printk(KERN_ERR, SCpnt,"cannot reuse command\n");
 			return FAILED;
 		}
 	} else {
 		SCpnt->host_scribble = kmalloc(sizeof(struct aha152x_scdata), GFP_ATOMIC);
 		if(!SCpnt->host_scribble) {
-			printk(ERR_LEAD "allocation failed\n", CMDINFO(SCpnt));
+			scmd_printk(KERN_ERR, SCpnt, "allocation failed\n");
 			return FAILED;
 		}
 	}
@@ -1066,15 +989,6 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
  */
 static int aha152x_queue_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
 {
-#if 0
-	if(*SCpnt->cmnd == REQUEST_SENSE) {
-		SCpnt->result = 0;
-		done(SCpnt);
-
-		return 0;
-	}
-#endif
-
 	return aha152x_internal_queue(SCpnt, NULL, 0, done);
 }
 
@@ -1082,15 +996,10 @@ static DEF_SCSI_QCMD(aha152x_queue)
 
 
 /*
- *  
  *
  */
 static void reset_done(Scsi_Cmnd *SCpnt)
 {
-#if 0
-	struct Scsi_Host *shpnt = SCpnt->host;
-	DPRINTK(debug_eh, INFO_LEAD "reset_done called\n", CMDINFO(SCpnt));
-#endif
 	if(SCSEM(SCpnt)) {
 		complete(SCSEM(SCpnt));
 	} else {
@@ -1108,20 +1017,11 @@ static int aha152x_abort(Scsi_Cmnd *SCpnt)
 	Scsi_Cmnd *ptr;
 	unsigned long flags;
 
-#if defined(AHA152X_DEBUG)
-	if(HOSTDATA(shpnt)->debug & debug_eh) {
-		printk(DEBUG_LEAD "abort(%p)", CMDINFO(SCpnt), SCpnt);
-		show_queues(shpnt);
-	}
-#endif
-
 	DO_LOCK(flags);
 
 	ptr=remove_SC(&ISSUE_SC, SCpnt);
 
 	if(ptr) {
-		DPRINTK(debug_eh, DEBUG_LEAD "not yet issued - SUCCESS\n", CMDINFO(SCpnt));
-
 		HOSTDATA(shpnt)->commands--;
 		if (!HOSTDATA(shpnt)->commands)
 			SETPORT(PORTA, 0);
@@ -1131,7 +1031,7 @@ static int aha152x_abort(Scsi_Cmnd *SCpnt)
 		SCpnt->host_scribble=NULL;
 
 		return SUCCESS;
-	} 
+	}
 
 	DO_UNLOCK(flags);
 
@@ -1142,7 +1042,8 @@ static int aha152x_abort(Scsi_Cmnd *SCpnt)
 	 *
 	 */
 
-	printk(ERR_LEAD "cannot abort running or disconnected command\n", CMDINFO(SCpnt));
+	scmd_printk(KERN_ERR, SCpnt,
+		    "cannot abort running or disconnected command\n");
 
 	return FAILED;
 }
@@ -1160,15 +1061,8 @@ static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
 	unsigned long flags;
 	unsigned long timeleft;
 
-#if defined(AHA152X_DEBUG)
-	if(HOSTDATA(shpnt)->debug & debug_eh) {
-		printk(INFO_LEAD "aha152x_device_reset(%p)", CMDINFO(SCpnt), SCpnt);
-		show_queues(shpnt);
-	}
-#endif
-
 	if(CURRENT_SC==SCpnt) {
-		printk(ERR_LEAD "cannot reset current device\n", CMDINFO(SCpnt));
+		scmd_printk(KERN_ERR, SCpnt, "cannot reset current device\n");
 		return FAILED;
 	}
 
@@ -1208,7 +1102,7 @@ static int aha152x_device_reset(Scsi_Cmnd * SCpnt)
 		} else if(disconnected) {
 			append_SC(&DISCONNECTED_SC, SCpnt);
 		}
-	
+
 		ret = FAILED;
 	}
 
@@ -1227,12 +1121,12 @@ static void free_hard_reset_SCs(struct Scsi_Host *shpnt, Scsi_Cmnd **SCs)
 		if(SCDATA(ptr)) {
 			next = SCNEXT(ptr);
 		} else {
-			printk(DEBUG_LEAD "queue corrupted at %p\n", CMDINFO(ptr), ptr);
+			scmd_printk(KERN_DEBUG, ptr,
+				    "queue corrupted at %p\n", ptr);
 			next = NULL;
 		}
 
 		if (!ptr->device->soft_reset) {
-			DPRINTK(debug_eh, DEBUG_LEAD "disconnected command %p removed\n", CMDINFO(ptr), ptr);
 			remove_SC(SCs, ptr);
 			HOSTDATA(shpnt)->commands--;
 			kfree(ptr->host_scribble);
@@ -1253,25 +1147,14 @@ static int aha152x_bus_reset_host(struct Scsi_Host *shpnt)
 
 	DO_LOCK(flags);
 
-#if defined(AHA152X_DEBUG)
-	if(HOSTDATA(shpnt)->debug & debug_eh) {
-		printk(KERN_DEBUG "scsi%d: bus reset", shpnt->host_no);
-		show_queues(shpnt);
-	}
-#endif
-
 	free_hard_reset_SCs(shpnt, &ISSUE_SC);
 	free_hard_reset_SCs(shpnt, &DISCONNECTED_SC);
 
-	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting bus\n", shpnt->host_no);
-
 	SETPORT(SCSISEQ, SCSIRSTO);
 	mdelay(256);
 	SETPORT(SCSISEQ, 0);
 	mdelay(DELAY);
 
-	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: bus resetted\n", shpnt->host_no);
-
 	setup_expected_interrupts(shpnt);
 	if(HOSTDATA(shpnt)->commands==0)
 		SETPORT(PORTA, 0);
@@ -1333,11 +1216,7 @@ static void reset_ports(struct Scsi_Host *shpnt)
  */
 int aha152x_host_reset_host(struct Scsi_Host *shpnt)
 {
-	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: host reset\n", shpnt->host_no);
-
 	aha152x_bus_reset_host(shpnt);
-
-	DPRINTK(debug_eh, KERN_DEBUG "scsi%d: resetting ports\n", shpnt->host_no);
 	reset_ports(shpnt);
 
 	return SUCCESS;
@@ -1345,7 +1224,7 @@ int aha152x_host_reset_host(struct Scsi_Host *shpnt)
 
 /*
  * Reset the host (bus and controller)
- * 
+ *
  */
 static int aha152x_host_reset(Scsi_Cmnd *SCpnt)
 {
@@ -1411,7 +1290,9 @@ static void done(struct Scsi_Host *shpnt, int error)
 {
 	if (CURRENT_SC) {
 		if(DONE_SC)
-			printk(ERR_LEAD "there's already a completed command %p - will cause abort\n", CMDINFO(CURRENT_SC), DONE_SC);
+			scmd_printk(KERN_ERR, CURRENT_SC,
+				    "there's already a completed command %p "
+				    "- will cause abort\n", DONE_SC);
 
 		DONE_SC = CURRENT_SC;
 		CURRENT_SC = NULL;
@@ -1466,7 +1347,7 @@ static irqreturn_t intr(int irqno, void *dev_id)
 		return IRQ_NONE;
 
 	if( TESTLO(DMASTAT, INTSTAT) )
-		return IRQ_NONE;	
+		return IRQ_NONE;
 
 	/* no more interrupts from the controller, while we're busy.
 	   INTEN is restored by the BH handler */
@@ -1501,7 +1382,7 @@ static void busfree_run(struct Scsi_Host *shpnt)
 	SETPORT(SXFRCTL0, CH1);
 
 	SETPORT(SSTAT1, CLRBUSFREE);
-	
+
 	if(CURRENT_SC) {
 #if defined(AHA152X_STAT)
 		action++;
@@ -1513,19 +1394,13 @@ static void busfree_run(struct Scsi_Host *shpnt)
 			done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_OK << 16));
 
 		} else if(CURRENT_SC->SCp.phase & aborted) {
-			DPRINTK(debug_eh, DEBUG_LEAD "ABORT sent\n", CMDINFO(CURRENT_SC));
 			done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_ABORT << 16));
 
 		} else if(CURRENT_SC->SCp.phase & resetted) {
-			DPRINTK(debug_eh, DEBUG_LEAD "BUS DEVICE RESET sent\n", CMDINFO(CURRENT_SC));
 			done(shpnt, (CURRENT_SC->SCp.Status & 0xff) | ((CURRENT_SC->SCp.Message & 0xff) << 8) | (DID_RESET << 16));
 
 		} else if(CURRENT_SC->SCp.phase & disconnected) {
 			/* target sent DISCONNECT */
-			DPRINTK(debug_selection, DEBUG_LEAD "target disconnected at %d/%d\n",
-				CMDINFO(CURRENT_SC),
-				scsi_get_resid(CURRENT_SC),
-				scsi_bufflen(CURRENT_SC));
 #if defined(AHA152X_STAT)
 			HOSTDATA(shpnt)->disconnections++;
 #endif
@@ -1553,13 +1428,6 @@ static void busfree_run(struct Scsi_Host *shpnt)
 			struct scsi_cmnd *cmd = HOSTDATA(shpnt)->done_SC;
 			struct aha152x_scdata *sc = SCDATA(cmd);
 
-#if 0
-			if(HOSTDATA(shpnt)->debug & debug_eh) {
-				printk(ERR_LEAD "received sense: ", CMDINFO(DONE_SC));
-				scsi_print_sense("bh", DONE_SC);
-			}
-#endif
-
 			scsi_eh_restore_cmnd(cmd, &sc->ses);
 
 			cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
@@ -1571,17 +1439,11 @@ static void busfree_run(struct Scsi_Host *shpnt)
 #if defined(AHA152X_STAT)
 			HOSTDATA(shpnt)->busfree_with_check_condition++;
 #endif
-#if 0
-			DPRINTK(debug_eh, ERR_LEAD "CHECK CONDITION found\n", CMDINFO(DONE_SC));
-#endif
 
 			if(!(DONE_SC->SCp.phase & not_issued)) {
 				struct aha152x_scdata *sc;
 				Scsi_Cmnd *ptr = DONE_SC;
 				DONE_SC=NULL;
-#if 0
-				DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
-#endif
 
 				sc = SCDATA(ptr);
 				/* It was allocated in aha152x_internal_queue? */
@@ -1591,19 +1453,10 @@ static void busfree_run(struct Scsi_Host *shpnt)
 				DO_UNLOCK(flags);
 				aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);
 				DO_LOCK(flags);
-#if 0
-			} else {
-				DPRINTK(debug_eh, ERR_LEAD "command not issued - CHECK CONDITION ignored\n", CMDINFO(DONE_SC));
-#endif
 			}
 		}
 
 		if(DONE_SC && DONE_SC->scsi_done) {
-#if defined(AHA152X_DEBUG)
-			int hostno=DONE_SC->device->host->host_no;
-			int id=DONE_SC->device->id & 0xf;
-			int lun=((u8)DONE_SC->device->lun) & 0x7;
-#endif
 			Scsi_Cmnd *ptr = DONE_SC;
 			DONE_SC=NULL;
 
@@ -1618,9 +1471,7 @@ static void busfree_run(struct Scsi_Host *shpnt)
 			}
 
 			DO_UNLOCK(flags);
-			DPRINTK(debug_done, DEBUG_LEAD "calling scsi_done(%p)\n", hostno, id, lun, ptr);
-                	ptr->scsi_done(ptr);
-			DPRINTK(debug_done, DEBUG_LEAD "scsi_done(%p) returned\n", hostno, id, lun, ptr);
+			ptr->scsi_done(ptr);
 			DO_LOCK(flags);
 		}
 
@@ -1640,9 +1491,7 @@ static void busfree_run(struct Scsi_Host *shpnt)
 #if defined(AHA152X_STAT)
 		action++;
 #endif
-	    	CURRENT_SC->SCp.phase |= selecting;
-
-		DPRINTK(debug_selection, DEBUG_LEAD "selecting target\n", CMDINFO(CURRENT_SC));
+		CURRENT_SC->SCp.phase |= selecting;
 
 		/* clear selection timeout */
 		SETPORT(SSTAT1, SELTO);
@@ -1674,18 +1523,19 @@ static void seldo_run(struct Scsi_Host *shpnt)
 	SETPORT(SSTAT1, CLRBUSFREE);
 	SETPORT(SSTAT1, CLRPHASECHG);
 
-    	CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
+	CURRENT_SC->SCp.phase &= ~(selecting|not_issued);
 
 	SETPORT(SCSISEQ, 0);
 
 	if (TESTLO(SSTAT0, SELDO)) {
-		printk(ERR_LEAD "aha152x: passing bus free condition\n", CMDINFO(CURRENT_SC));
+		scmd_printk(KERN_ERR, CURRENT_SC,
+			    "aha152x: passing bus free condition\n");
 		done(shpnt, DID_NO_CONNECT << 16);
 		return;
 	}
 
 	SETPORT(SSTAT0, CLRSELDO);
-	
+
 	ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
 
 	if (CURRENT_SC->SCp.phase & aborting) {
@@ -1693,7 +1543,7 @@ static void seldo_run(struct Scsi_Host *shpnt)
 	} else if (CURRENT_SC->SCp.phase & resetting) {
 		ADDMSGO(BUS_DEVICE_RESET);
 	} else if (SYNCNEG==0 && SYNCHRONOUS) {
-    		CURRENT_SC->SCp.phase |= syncneg;
+		CURRENT_SC->SCp.phase |= syncneg;
 		MSGOLEN += spi_populate_sync_msg(&MSGO(MSGOLEN), 50, 8);
 		SYNCNEG=1;		/* negotiation in progress */
 	}
@@ -1708,29 +1558,21 @@ static void seldo_run(struct Scsi_Host *shpnt)
  */
 static void selto_run(struct Scsi_Host *shpnt)
 {
-	SETPORT(SCSISEQ, 0);		
+	SETPORT(SCSISEQ, 0);
 	SETPORT(SSTAT1, CLRSELTIMO);
 
-	DPRINTK(debug_selection, DEBUG_LEAD "selection timeout\n", CMDINFO(CURRENT_SC));
-
-	if(!CURRENT_SC) {
-		DPRINTK(debug_selection, DEBUG_LEAD "!CURRENT_SC\n", CMDINFO(CURRENT_SC));
+	if(!CURRENT_SC)
 		return;
-	}
 
-    	CURRENT_SC->SCp.phase &= ~selecting;
+	CURRENT_SC->SCp.phase &= ~selecting;
 
-	if (CURRENT_SC->SCp.phase & aborted) {
-		DPRINTK(debug_selection, DEBUG_LEAD "aborted\n", CMDINFO(CURRENT_SC));
+	if (CURRENT_SC->SCp.phase & aborted)
 		done(shpnt, DID_ABORT << 16);
-	} else if (TESTLO(SSTAT0, SELINGO)) {
-		DPRINTK(debug_selection, DEBUG_LEAD "arbitration not won\n", CMDINFO(CURRENT_SC));
+	else if (TESTLO(SSTAT0, SELINGO))
 		done(shpnt, DID_BUS_BUSY << 16);
-	} else {
+	else
 		/* ARBITRATION won, but SELECTION failed */
-		DPRINTK(debug_selection, DEBUG_LEAD "selection failed\n", CMDINFO(CURRENT_SC));
 		done(shpnt, DID_NO_CONNECT << 16);
-	}
 }
 
 /*
@@ -1753,9 +1595,8 @@ static void seldi_run(struct Scsi_Host *shpnt)
 
 	if(CURRENT_SC) {
 		if(!(CURRENT_SC->SCp.phase & not_issued))
-			printk(ERR_LEAD "command should not have been issued yet\n", CMDINFO(CURRENT_SC));
-
-		DPRINTK(debug_selection, ERR_LEAD "command requeued - reselection\n", CMDINFO(CURRENT_SC));
+			scmd_printk(KERN_ERR, CURRENT_SC,
+				    "command should not have been issued yet\n");
 
 		DO_LOCK(flags);
 		append_SC(&ISSUE_SC, CURRENT_SC);
@@ -1764,17 +1605,16 @@ static void seldi_run(struct Scsi_Host *shpnt)
 		CURRENT_SC = NULL;
 	}
 
-	if(!DISCONNECTED_SC) {
-		DPRINTK(debug_selection, DEBUG_LEAD "unexpected SELDI ", CMDINFO(CURRENT_SC));
+	if(!DISCONNECTED_SC)
 		return;
-	}
 
 	RECONN_TARGET=-1;
 
 	selid = GETPORT(SELID) & ~(1 << shpnt->this_id);
 
 	if (selid==0) {
-		printk("aha152x%d: target id unknown (%02x)\n", HOSTNO, selid);
+		shost_printk(KERN_INFO, shpnt,
+			     "target id unknown (%02x)\n", selid);
 		return;
 	}
 
@@ -1782,8 +1622,8 @@ static void seldi_run(struct Scsi_Host *shpnt)
 		;
 
 	if(selid & ~(1 << target)) {
-		printk("aha152x%d: multiple targets reconnected (%02x)\n",
-		       HOSTNO, selid);
+		shost_printk(KERN_INFO, shpnt,
+			     "multiple targets reconnected (%02x)\n", selid);
 	}
 
 
@@ -1793,7 +1633,6 @@ static void seldi_run(struct Scsi_Host *shpnt)
 	SETRATE(HOSTDATA(shpnt)->syncrate[target]);
 
 	RECONN_TARGET=target;
-	DPRINTK(debug_selection, DEBUG_LEAD "target %d reselected (%02x).\n", CMDINFO(CURRENT_SC), target, selid);
 }
 
 /*
@@ -1817,31 +1656,24 @@ static void msgi_run(struct Scsi_Host *shpnt)
 		if(sstat1 & (PHASECHG|PHASEMIS|BUSFREE) || !(sstat1 & REQINIT))
 			return;
 
-		if(TESTLO(SSTAT0,SPIORDY)) {
-			DPRINTK(debug_msgi, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
+		if(TESTLO(SSTAT0,SPIORDY))
 			return;
-		}	
 
 		ADDMSGI(GETPORT(SCSIDAT));
 
-#if defined(AHA152X_DEBUG)
-		if (HOSTDATA(shpnt)->debug & debug_msgi) {
-			printk(INFO_LEAD "inbound message %02x ", CMDINFO(CURRENT_SC), MSGI(0));
-			spi_print_msg(&MSGI(0));
-			printk("\n");
-		}
-#endif
-
 		if(!CURRENT_SC) {
 			if(LASTSTATE!=seldi) {
-				printk(KERN_ERR "aha152x%d: message in w/o current command not after reselection\n", HOSTNO);
+				shost_printk(KERN_ERR, shpnt,
+					     "message in w/o current command"
+					     " not after reselection\n");
 			}
 
 			/*
-	 	 	 * Handle reselection
-	 		 */
+			 * Handle reselection
+			 */
 			if(!(MSGI(0) & IDENTIFY_BASE)) {
-				printk(KERN_ERR "aha152x%d: target didn't identify after reselection\n", HOSTNO);
+				shost_printk(KERN_ERR, shpnt,
+					     "target didn't identify after reselection\n");
 				continue;
 			}
 
@@ -1849,12 +1681,13 @@ static void msgi_run(struct Scsi_Host *shpnt)
 
 			if (!CURRENT_SC) {
 				show_queues(shpnt);
-				printk(KERN_ERR "aha152x%d: no disconnected command for target %d/%d\n", HOSTNO, RECONN_TARGET, MSGI(0) & 0x3f);
+				shost_printk(KERN_ERR, shpnt,
+					     "no disconnected command"
+					     " for target %d/%d\n",
+					     RECONN_TARGET, MSGI(0) & 0x3f);
 				continue;
 			}
 
-			DPRINTK(debug_msgi, DEBUG_LEAD "target reconnected\n", CMDINFO(CURRENT_SC));
-
 			CURRENT_SC->SCp.Message = MSGI(0);
 			CURRENT_SC->SCp.phase &= ~disconnected;
 
@@ -1862,31 +1695,32 @@ static void msgi_run(struct Scsi_Host *shpnt)
 
 			/* next message if any */
 			continue;
-		} 
+		}
 
 		CURRENT_SC->SCp.Message = MSGI(0);
 
 		switch (MSGI(0)) {
 		case DISCONNECT:
 			if (!RECONNECT)
-				printk(WARN_LEAD "target was not allowed to disconnect\n", CMDINFO(CURRENT_SC));
+				scmd_printk(KERN_WARN, CURRENT_SC,
+					    "target was not allowed to disconnect\n");
 
 			CURRENT_SC->SCp.phase |= disconnected;
 			break;
 
 		case COMMAND_COMPLETE:
-			if(CURRENT_SC->SCp.phase & completed)
-				DPRINTK(debug_msgi, DEBUG_LEAD "again COMMAND COMPLETE\n", CMDINFO(CURRENT_SC));
-
 			CURRENT_SC->SCp.phase |= completed;
 			break;
 
 		case MESSAGE_REJECT:
 			if (SYNCNEG==1) {
-				printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
+				scmd_printk(KERN_INFO, CURRENT_SC,
+					    "Synchronous Data Transfer Request"
+					    " was rejected\n");
 				SYNCNEG=2;	/* negotiation completed */
 			} else
-				printk(INFO_LEAD "inbound message (MESSAGE REJECT)\n", CMDINFO(CURRENT_SC));
+				scmd_printk(KERN_INFO, CURRENT_SC,
+					    "inbound message (MESSAGE REJECT)\n");
 			break;
 
 		case SAVE_POINTERS:
@@ -1907,7 +1741,8 @@ static void msgi_run(struct Scsi_Host *shpnt)
 					long ticks;
 
 					if (MSGI(1) != 3) {
-						printk(ERR_LEAD "SDTR message length!=3\n", CMDINFO(CURRENT_SC));
+						scmd_printk(KERN_ERR, CURRENT_SC,
+							    "SDTR message length!=3\n");
 						break;
 					}
 
@@ -1924,10 +1759,12 @@ static void msgi_run(struct Scsi_Host *shpnt)
 						/* negotiation in progress */
 						if (ticks > 9 || MSGI(4) < 1 || MSGI(4) > 8) {
 							ADDMSGO(MESSAGE_REJECT);
-							printk(INFO_LEAD "received Synchronous Data Transfer Request invalid - rejected\n", CMDINFO(CURRENT_SC));
+							scmd_printk(KERN_INFO,
+								    CURRENT_SC,
+								    "received Synchronous Data Transfer Request invalid - rejected\n");
 							break;
 						}
-						
+
 						SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
 					} else if (ticks <= 9 && MSGI(4) >= 1) {
 						ADDMSGO(EXTENDED_MESSAGE);
@@ -1947,7 +1784,8 @@ static void msgi_run(struct Scsi_Host *shpnt)
 						SYNCRATE |= ((ticks - 2) << 4) + MSGI(4);
 					} else {
 						/* requested SDTR is too slow, do it asynchronously */
-						printk(INFO_LEAD "Synchronous Data Transfer Request too slow - Rejecting\n", CMDINFO(CURRENT_SC));
+						scmd_printk(KERN_INFO, CURRENT_SC,
+							    "Synchronous Data Transfer Request too slow - Rejecting\n");
 						ADDMSGO(MESSAGE_REJECT);
 					}
 
@@ -1985,12 +1823,12 @@ static void msgi_run(struct Scsi_Host *shpnt)
 static void msgi_end(struct Scsi_Host *shpnt)
 {
 	if(MSGILEN>0)
-		printk(WARN_LEAD "target left before message completed (%d)\n", CMDINFO(CURRENT_SC), MSGILEN);
+		scmd_printk(KERN_WARN, CURRENT_SC,
+			    "target left before message completed (%d)\n",
+			    MSGILEN);
 
-	if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE)) {
-		DPRINTK(debug_msgi, DEBUG_LEAD "msgo pending\n", CMDINFO(CURRENT_SC));
+	if (MSGOLEN > 0 && !(GETPORT(SSTAT1) & BUSFREE))
 		SETPORT(SCSISIG, P_MSGI | SIG_ATNO);
-	} 
 }
 
 /*
@@ -2003,21 +1841,12 @@ static void msgo_init(struct Scsi_Host *shpnt)
 		if((CURRENT_SC->SCp.phase & syncneg) && SYNCNEG==2 && SYNCRATE==0) {
 			ADDMSGO(IDENTIFY(RECONNECT, CURRENT_SC->device->lun));
 		} else {
-			printk(INFO_LEAD "unexpected MESSAGE OUT phase; rejecting\n", CMDINFO(CURRENT_SC));
+			scmd_printk(KERN_INFO, CURRENT_SC,
+				    "unexpected MESSAGE OUT phase; rejecting\n");
 			ADDMSGO(MESSAGE_REJECT);
 		}
 	}
 
-#if defined(AHA152X_DEBUG)
-	if(HOSTDATA(shpnt)->debug & debug_msgo) {
-		int i;
-
-		printk(DEBUG_LEAD "messages( ", CMDINFO(CURRENT_SC));
-		for (i=0; i<MSGOLEN; i+=spi_print_msg(&MSGO(i)), printk(" "))
-			;
-		printk(")\n");
-	}
-#endif
 }
 
 /*
@@ -2026,16 +1855,9 @@ static void msgo_init(struct Scsi_Host *shpnt)
  */
 static void msgo_run(struct Scsi_Host *shpnt)
 {
-	if(MSGO_I==MSGOLEN)
-		DPRINTK(debug_msgo, DEBUG_LEAD "messages all sent (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
-
 	while(MSGO_I<MSGOLEN) {
-		DPRINTK(debug_msgo, DEBUG_LEAD "message byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO(MSGO_I), MSGO_I, MSGOLEN);
-
-		if(TESTLO(SSTAT0, SPIORDY)) {
-			DPRINTK(debug_msgo, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
+		if(TESTLO(SSTAT0, SPIORDY))
 			return;
-		}
 
 		if (MSGO_I==MSGOLEN-1) {
 			/* Leave MESSAGE OUT after transfer */
@@ -2059,36 +1881,33 @@ static void msgo_run(struct Scsi_Host *shpnt)
 static void msgo_end(struct Scsi_Host *shpnt)
 {
 	if(MSGO_I<MSGOLEN) {
-		printk(ERR_LEAD "message sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), MSGO_I, MSGOLEN);
+		scmd_printk(KERN_ERR, CURRENT_SC,
+			    "message sent incompletely (%d/%d)\n",
+			    MSGO_I, MSGOLEN);
 		if(SYNCNEG==1) {
-			printk(INFO_LEAD "Synchronous Data Transfer Request was rejected\n", CMDINFO(CURRENT_SC));
+			scmd_printk(KERN_INFO, CURRENT_SC,
+				    "Synchronous Data Transfer Request was rejected\n");
 			SYNCNEG=2;
 		}
 	}
-		
+
 	MSGO_I  = 0;
 	MSGOLEN = 0;
 }
 
-/* 
+/*
  * command phase
  *
  */
 static void cmd_init(struct Scsi_Host *shpnt)
 {
 	if (CURRENT_SC->SCp.sent_command) {
-		printk(ERR_LEAD "command already sent\n", CMDINFO(CURRENT_SC));
+		scmd_printk(KERN_ERR, CURRENT_SC,
+			    "command already sent\n");
 		done(shpnt, DID_ERROR << 16);
 		return;
 	}
 
-#if defined(AHA152X_DEBUG)
-	if (HOSTDATA(shpnt)->debug & debug_cmd) {
-		printk(DEBUG_LEAD "cmd_init: ", CMDINFO(CURRENT_SC));
-		__scsi_print_command(CURRENT_SC->cmnd);
-	}
-#endif
-
 	CMD_I=0;
 }
 
@@ -2098,18 +1917,9 @@ static void cmd_init(struct Scsi_Host *shpnt)
  */
 static void cmd_run(struct Scsi_Host *shpnt)
 {
-	if(CMD_I==CURRENT_SC->cmd_len) {
-		DPRINTK(debug_cmd, DEBUG_LEAD "command already completely sent (%d/%d)", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
-		disp_ports(shpnt);
-	}
-
 	while(CMD_I<CURRENT_SC->cmd_len) {
-		DPRINTK(debug_cmd, DEBUG_LEAD "command byte %02x (%d/%d)\n", CMDINFO(CURRENT_SC), CURRENT_SC->cmnd[CMD_I], CMD_I, CURRENT_SC->cmd_len);
-
-		if(TESTLO(SSTAT0, SPIORDY)) {
-			DPRINTK(debug_cmd, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
+		if(TESTLO(SSTAT0, SPIORDY))
 			return;
-		}
 
 		SETPORT(SCSIDAT, CURRENT_SC->cmnd[CMD_I++]);
 	}
@@ -2118,7 +1928,9 @@ static void cmd_run(struct Scsi_Host *shpnt)
 static void cmd_end(struct Scsi_Host *shpnt)
 {
 	if(CMD_I<CURRENT_SC->cmd_len)
-		printk(ERR_LEAD "command sent incompletely (%d/%d)\n", CMDINFO(CURRENT_SC), CMD_I, CURRENT_SC->cmd_len);
+		scmd_printk(KERN_ERR, CURRENT_SC,
+			    "command sent incompletely (%d/%d)\n",
+			    CMD_I, CURRENT_SC->cmd_len);
 	else
 		CURRENT_SC->SCp.sent_command++;
 }
@@ -2129,20 +1941,11 @@ static void cmd_end(struct Scsi_Host *shpnt)
  */
 static void status_run(struct Scsi_Host *shpnt)
 {
-	if(TESTLO(SSTAT0,SPIORDY)) {
-		DPRINTK(debug_status, DEBUG_LEAD "!SPIORDY\n", CMDINFO(CURRENT_SC));
+	if(TESTLO(SSTAT0,SPIORDY))
 		return;
-	}
 
 	CURRENT_SC->SCp.Status = GETPORT(SCSIDAT);
 
-#if defined(AHA152X_DEBUG)
-	if (HOSTDATA(shpnt)->debug & debug_status) {
-		printk(DEBUG_LEAD "inbound status %02x ", CMDINFO(CURRENT_SC), CURRENT_SC->SCp.Status);
-		scsi_print_status(CURRENT_SC->SCp.Status);
-		printk("\n");
-	}
-#endif
 }
 
 /*
@@ -2161,10 +1964,6 @@ static void datai_init(struct Scsi_Host *shpnt)
 	SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE);
 
 	DATA_LEN=0;
-	DPRINTK(debug_datai,
-		DEBUG_LEAD "datai_init: request_bufflen=%d resid=%d\n",
-		CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
-		scsi_get_resid(CURRENT_SC));
 }
 
 static void datai_run(struct Scsi_Host *shpnt)
@@ -2186,8 +1985,7 @@ static void datai_run(struct Scsi_Host *shpnt)
 			barrier();
 
 		if(TESTLO(DMASTAT, DFIFOFULL|INTSTAT)) {
-			printk(ERR_LEAD "datai timeout", CMDINFO(CURRENT_SC));
-			disp_ports(shpnt);
+			scmd_printk(KERN_ERR, CURRENT_SC, "datai timeout\n");
 			break;
 		}
 
@@ -2199,8 +1997,8 @@ static void datai_run(struct Scsi_Host *shpnt)
 				barrier();
 
 			if(TESTLO(SSTAT2, SEMPTY)) {
-				printk(ERR_LEAD "datai sempty timeout", CMDINFO(CURRENT_SC));
-				disp_ports(shpnt);
+				scmd_printk(KERN_ERR, CURRENT_SC,
+					    "datai sempty timeout");
 				break;
 			}
 
@@ -2209,48 +2007,48 @@ static void datai_run(struct Scsi_Host *shpnt)
 
 		if(CURRENT_SC->SCp.this_residual>0) {
 			while(fifodata>0 && CURRENT_SC->SCp.this_residual>0) {
-                        	data_count = fifodata>CURRENT_SC->SCp.this_residual ?
+				data_count = fifodata>CURRENT_SC->SCp.this_residual ?
 						CURRENT_SC->SCp.this_residual :
 						fifodata;
 				fifodata -= data_count;
 
-                        	if(data_count & 1) {
-					DPRINTK(debug_datai, DEBUG_LEAD "8bit\n", CMDINFO(CURRENT_SC));
-                                	SETPORT(DMACNTRL0, ENDMA|_8BIT);
-                                	*CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
-                                	CURRENT_SC->SCp.this_residual--;
-                                	DATA_LEN++;
-                                	SETPORT(DMACNTRL0, ENDMA);
-                        	}
-	
-                        	if(data_count > 1) {
-					DPRINTK(debug_datai, DEBUG_LEAD "16bit(%d)\n", CMDINFO(CURRENT_SC), data_count);
-                                	data_count >>= 1;
-                                	insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
-                                	CURRENT_SC->SCp.ptr           += 2 * data_count;
-                                	CURRENT_SC->SCp.this_residual -= 2 * data_count;
-                                	DATA_LEN                      += 2 * data_count;
-                        	}
-	
-                        	if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
-                               		/* advance to next buffer */
-                               		CURRENT_SC->SCp.buffers_residual--;
-                               		CURRENT_SC->SCp.buffer++;
-                               		CURRENT_SC->SCp.ptr           = SG_ADDRESS(CURRENT_SC->SCp.buffer);
-                               		CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
-				} 
-                	}
-		} else if(fifodata>0) { 
-			printk(ERR_LEAD "no buffers left for %d(%d) bytes (data overrun!?)\n", CMDINFO(CURRENT_SC), fifodata, GETPORT(FIFOSTAT));
-                        SETPORT(DMACNTRL0, ENDMA|_8BIT);
+				if(data_count & 1) {
+					SETPORT(DMACNTRL0, ENDMA|_8BIT);
+					*CURRENT_SC->SCp.ptr++ = GETPORT(DATAPORT);
+					CURRENT_SC->SCp.this_residual--;
+					DATA_LEN++;
+					SETPORT(DMACNTRL0, ENDMA);
+				}
+
+				if(data_count > 1) {
+					data_count >>= 1;
+					insw(DATAPORT, CURRENT_SC->SCp.ptr, data_count);
+					CURRENT_SC->SCp.ptr           += 2 * data_count;
+					CURRENT_SC->SCp.this_residual -= 2 * data_count;
+					DATA_LEN                      += 2 * data_count;
+				}
+
+				if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
+					/* advance to next buffer */
+					CURRENT_SC->SCp.buffers_residual--;
+					CURRENT_SC->SCp.buffer++;
+					CURRENT_SC->SCp.ptr           = SG_ADDRESS(CURRENT_SC->SCp.buffer);
+					CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length;
+				}
+			}
+		} else if(fifodata>0) {
+			scmd_printk(KERN_ERR, CURRENT_SC,
+				    "no buffers left for %d(%d) bytes"
+				    " (data overrun!?)\n",
+				    fifodata, GETPORT(FIFOSTAT));
+			SETPORT(DMACNTRL0, ENDMA|_8BIT);
 			while(fifodata>0) {
 				int data;
 				data=GETPORT(DATAPORT);
-				DPRINTK(debug_datai, DEBUG_LEAD "data=%02x\n", CMDINFO(CURRENT_SC), data);
 				fifodata--;
 				DATA_LEN++;
 			}
-                        SETPORT(DMACNTRL0, ENDMA|_8BIT);
+			SETPORT(DMACNTRL0, ENDMA|_8BIT);
 		}
 	}
 
@@ -2258,19 +2056,20 @@ static void datai_run(struct Scsi_Host *shpnt)
 	   TESTLO(DMASTAT, DFIFOEMP) ||
 	   TESTLO(SSTAT2, SEMPTY) ||
 	   GETPORT(FIFOSTAT)>0) {
-	   	/*
+		/*
 		 * something went wrong, if there's something left in the fifos
 		 * or the phase didn't change
 		 */
-		printk(ERR_LEAD "fifos should be empty and phase should have changed\n", CMDINFO(CURRENT_SC));
-		disp_ports(shpnt);
+		scmd_printk(KERN_ERR, CURRENT_SC,
+			    "fifos should be empty and phase should have changed\n");
 	}
 
 	if(DATA_LEN!=GETSTCNT()) {
-		printk(ERR_LEAD
-		       "manual transfer count differs from automatic (count=%d;stcnt=%d;diff=%d;fifostat=%d)",
-		       CMDINFO(CURRENT_SC), DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN, GETPORT(FIFOSTAT));
-		disp_ports(shpnt);
+		scmd_printk(KERN_ERR, CURRENT_SC,
+			    "manual transfer count differs from automatic "
+			    "(count=%d;stcnt=%d;diff=%d;fifostat=%d)",
+			    DATA_LEN, GETSTCNT(), GETSTCNT()-DATA_LEN,
+			    GETPORT(FIFOSTAT));
 		mdelay(10000);
 	}
 }
@@ -2279,11 +2078,6 @@ static void datai_end(struct Scsi_Host *shpnt)
 {
 	CMD_INC_RESID(CURRENT_SC, -GETSTCNT());
 
-	DPRINTK(debug_datai,
-		DEBUG_LEAD "datai_end: request_bufflen=%d resid=%d stcnt=%d\n",
-		CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
-		scsi_get_resid(CURRENT_SC), GETSTCNT());
-
 	SETPORT(SXFRCTL0, CH1|CLRSTCNT);
 	SETPORT(DMACNTRL0, 0);
 }
@@ -2304,11 +2098,6 @@ static void datao_init(struct Scsi_Host *shpnt)
 	SETPORT(SIMODE1, ENSCSIPERR | ENSCSIRST | ENPHASEMIS | ENBUSFREE );
 
 	DATA_LEN = scsi_get_resid(CURRENT_SC);
-
-	DPRINTK(debug_datao,
-		DEBUG_LEAD "datao_init: request_bufflen=%d; resid=%d\n",
-		CMDINFO(CURRENT_SC), scsi_bufflen(CURRENT_SC),
-		scsi_get_resid(CURRENT_SC));
 }
 
 static void datao_run(struct Scsi_Host *shpnt)
@@ -2323,8 +2112,9 @@ static void datao_run(struct Scsi_Host *shpnt)
 			data_count=CURRENT_SC->SCp.this_residual;
 
 		if(TESTLO(DMASTAT, DFIFOEMP)) {
-			printk(ERR_LEAD "datao fifo not empty (%d)", CMDINFO(CURRENT_SC), GETPORT(FIFOSTAT));
-			disp_ports(shpnt);
+			scmd_printk(KERN_ERR, CURRENT_SC,
+				    "datao fifo not empty (%d)",
+				    GETPORT(FIFOSTAT));
 			break;
 		}
 
@@ -2342,7 +2132,7 @@ static void datao_run(struct Scsi_Host *shpnt)
 			CURRENT_SC->SCp.ptr           += 2 * data_count;
 			CURRENT_SC->SCp.this_residual -= 2 * data_count;
 			CMD_INC_RESID(CURRENT_SC, -2 * data_count);
-	  	}
+		}
 
 		if(CURRENT_SC->SCp.this_residual==0 && CURRENT_SC->SCp.buffers_residual>0) {
 			/* advance to next buffer */
@@ -2357,8 +2147,7 @@ static void datao_run(struct Scsi_Host *shpnt)
 			barrier();
 
 		if(TESTLO(DMASTAT, DFIFOEMP|INTSTAT)) {
-			printk(ERR_LEAD "dataout timeout", CMDINFO(CURRENT_SC));
-			disp_ports(shpnt);
+			scmd_printk(KERN_ERR, CURRENT_SC, "dataout timeout\n");
 			break;
 		}
 	}
@@ -2368,35 +2157,23 @@ static void datao_end(struct Scsi_Host *shpnt)
 {
 	if(TESTLO(DMASTAT, DFIFOEMP)) {
 		int data_count = (DATA_LEN - scsi_get_resid(CURRENT_SC)) -
-		                                                    GETSTCNT();
-
-		DPRINTK(debug_datao, DEBUG_LEAD "datao: %d bytes to resend (%d written, %d transferred)\n",
-			CMDINFO(CURRENT_SC),
-			data_count,
-			DATA_LEN - scsi_get_resid(CURRENT_SC),
-			GETSTCNT());
+			GETSTCNT();
 
 		CMD_INC_RESID(CURRENT_SC, data_count);
 
 		data_count -= CURRENT_SC->SCp.ptr -
-		                             SG_ADDRESS(CURRENT_SC->SCp.buffer);
+			SG_ADDRESS(CURRENT_SC->SCp.buffer);
 		while(data_count>0) {
 			CURRENT_SC->SCp.buffer--;
 			CURRENT_SC->SCp.buffers_residual++;
 			data_count -= CURRENT_SC->SCp.buffer->length;
 		}
 		CURRENT_SC->SCp.ptr = SG_ADDRESS(CURRENT_SC->SCp.buffer) -
-		                                                     data_count;
+			data_count;
 		CURRENT_SC->SCp.this_residual = CURRENT_SC->SCp.buffer->length +
-		                                                     data_count;
+			data_count;
 	}
 
-	DPRINTK(debug_datao, DEBUG_LEAD "datao_end: request_bufflen=%d; resid=%d; stcnt=%d\n",
-		CMDINFO(CURRENT_SC),
-		scsi_bufflen(CURRENT_SC),
-		scsi_get_resid(CURRENT_SC),
-		GETSTCNT());
-
 	SETPORT(SXFRCTL0, CH1|CLRCH1|CLRSTCNT);
 	SETPORT(SXFRCTL0, CH1);
 
@@ -2420,7 +2197,7 @@ static int update_state(struct Scsi_Host *shpnt)
 		STATE=rsti;
 		SETPORT(SCSISEQ,0);
 		SETPORT(SSTAT1,SCSIRSTI);
-  	} else if(stat0 & SELDI && PREVSTATE==busfree) {
+	} else if(stat0 & SELDI && PREVSTATE==busfree) {
 		STATE=seldi;
 	} else if(stat0 & SELDO && CURRENT_SC && (CURRENT_SC->SCp.phase & selecting)) {
 		STATE=seldo;
@@ -2445,8 +2222,7 @@ static int update_state(struct Scsi_Host *shpnt)
 	}
 
 	if((stat0 & SELDI) && STATE!=seldi && !dataphase) {
-		printk(INFO_LEAD "reselection missed?", CMDINFO(CURRENT_SC));
-		disp_ports(shpnt);
+		scmd_printk(KERN_INFO, CURRENT_SC, "reselection missed?");
 	}
 
 	if(STATE!=PREVSTATE) {
@@ -2464,7 +2240,7 @@ static int update_state(struct Scsi_Host *shpnt)
  */
 static void parerr_run(struct Scsi_Host *shpnt)
 {
-	printk(ERR_LEAD "parity error\n", CMDINFO(CURRENT_SC));
+	scmd_printk(KERN_ERR, CURRENT_SC, "parity error\n");
 	done(shpnt, DID_PARITY << 16);
 }
 
@@ -2476,8 +2252,8 @@ static void rsti_run(struct Scsi_Host *shpnt)
 {
 	Scsi_Cmnd *ptr;
 
-	printk(KERN_NOTICE "aha152x%d: scsi reset in\n", HOSTNO);
-	
+	shost_printk(KERN_NOTICE, shpnt, "scsi reset in\n");
+
 	ptr=DISCONNECTED_SC;
 	while(ptr) {
 		Scsi_Cmnd *next = SCNEXT(ptr);
@@ -2539,8 +2315,6 @@ static void is_complete(struct Scsi_Host *shpnt)
 
 		dataphase=update_state(shpnt);
 
-		DPRINTK(debug_phases, LEAD "start %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
-
 		/*
 		 * end previous state
 		 *
@@ -2567,9 +2341,9 @@ static void is_complete(struct Scsi_Host *shpnt)
 		if(dataphase) {
 			SETPORT(SSTAT0, REQINIT);
 			SETPORT(SCSISIG, GETPORT(SCSISIG) & P_MASK);
-			SETPORT(SSTAT1, PHASECHG);  
+			SETPORT(SSTAT1, PHASECHG);
 		}
-		
+
 		/*
 		 * enable SPIO mode if previous didn't use it
 		 * and this one does
@@ -2581,14 +2355,14 @@ static void is_complete(struct Scsi_Host *shpnt)
 			if(CURRENT_SC)
 				CURRENT_SC->SCp.phase |= spiordy;
 		}
-		
+
 		/*
 		 * initialize for new state
 		 *
 		 */
 		if(PREVSTATE!=STATE && states[STATE].init)
 			states[STATE].init(shpnt);
-		
+
 		/*
 		 * handle current state
 		 *
@@ -2596,8 +2370,9 @@ static void is_complete(struct Scsi_Host *shpnt)
 		if(states[STATE].run)
 			states[STATE].run(shpnt);
 		else
-			printk(ERR_LEAD "unexpected state (%x)\n", CMDINFO(CURRENT_SC), STATE);
-		
+			scmd_printk(KERN_ERR, CURRENT_SC,
+				    "unexpected state (%x)\n", STATE);
+
 		/*
 		 * setup controller to interrupt on
 		 * the next expected condition and
@@ -2613,7 +2388,6 @@ static void is_complete(struct Scsi_Host *shpnt)
 		HOSTDATA(shpnt)->time[STATE] += jiffies-start;
 #endif
 
-		DPRINTK(debug_phases, LEAD "end %s %s(%s)\n", CMDINFO(CURRENT_SC), states[STATE].name, states[PREVSTATE].name, states[LASTSTATE].name);
 	} while(pending);
 
 	/*
@@ -2626,289 +2400,42 @@ static void is_complete(struct Scsi_Host *shpnt)
 }
 
 
-/* 
+/*
  * Dump the current driver status and panic
  */
 static void aha152x_error(struct Scsi_Host *shpnt, char *msg)
 {
-	printk(KERN_EMERG "\naha152x%d: %s\n", HOSTNO, msg);
+	shost_printk(KERN_EMERG, shpnt, "%s\n", msg);
 	show_queues(shpnt);
 	panic("aha152x panic\n");
 }
 
 /*
- * Display registers of AIC-6260
- */
-static void disp_ports(struct Scsi_Host *shpnt)
-{
-#if defined(AHA152X_DEBUG)
-	int s;
-
-	printk("\n%s: %s(%s) ",
-		CURRENT_SC ? "busy" : "waiting",
-		states[STATE].name,
-		states[PREVSTATE].name);
-
-	s = GETPORT(SCSISEQ);
-	printk("SCSISEQ( ");
-	if (s & TEMODEO)
-		printk("TARGET MODE ");
-	if (s & ENSELO)
-		printk("SELO ");
-	if (s & ENSELI)
-		printk("SELI ");
-	if (s & ENRESELI)
-		printk("RESELI ");
-	if (s & ENAUTOATNO)
-		printk("AUTOATNO ");
-	if (s & ENAUTOATNI)
-		printk("AUTOATNI ");
-	if (s & ENAUTOATNP)
-		printk("AUTOATNP ");
-	if (s & SCSIRSTO)
-		printk("SCSIRSTO ");
-	printk(");");
-
-	printk(" SCSISIG(");
-	s = GETPORT(SCSISIG);
-	switch (s & P_MASK) {
-	case P_DATAO:
-		printk("DATA OUT");
-		break;
-	case P_DATAI:
-		printk("DATA IN");
-		break;
-	case P_CMD:
-		printk("COMMAND");
-		break;
-	case P_STATUS:
-		printk("STATUS");
-		break;
-	case P_MSGO:
-		printk("MESSAGE OUT");
-		break;
-	case P_MSGI:
-		printk("MESSAGE IN");
-		break;
-	default:
-		printk("*invalid*");
-		break;
-	}
-
-	printk("); ");
-
-	printk("INTSTAT (%s); ", TESTHI(DMASTAT, INTSTAT) ? "hi" : "lo");
-
-	printk("SSTAT( ");
-	s = GETPORT(SSTAT0);
-	if (s & TARGET)
-		printk("TARGET ");
-	if (s & SELDO)
-		printk("SELDO ");
-	if (s & SELDI)
-		printk("SELDI ");
-	if (s & SELINGO)
-		printk("SELINGO ");
-	if (s & SWRAP)
-		printk("SWRAP ");
-	if (s & SDONE)
-		printk("SDONE ");
-	if (s & SPIORDY)
-		printk("SPIORDY ");
-	if (s & DMADONE)
-		printk("DMADONE ");
-
-	s = GETPORT(SSTAT1);
-	if (s & SELTO)
-		printk("SELTO ");
-	if (s & ATNTARG)
-		printk("ATNTARG ");
-	if (s & SCSIRSTI)
-		printk("SCSIRSTI ");
-	if (s & PHASEMIS)
-		printk("PHASEMIS ");
-	if (s & BUSFREE)
-		printk("BUSFREE ");
-	if (s & SCSIPERR)
-		printk("SCSIPERR ");
-	if (s & PHASECHG)
-		printk("PHASECHG ");
-	if (s & REQINIT)
-		printk("REQINIT ");
-	printk("); ");
-
-
-	printk("SSTAT( ");
-
-	s = GETPORT(SSTAT0) & GETPORT(SIMODE0);
-
-	if (s & TARGET)
-		printk("TARGET ");
-	if (s & SELDO)
-		printk("SELDO ");
-	if (s & SELDI)
-		printk("SELDI ");
-	if (s & SELINGO)
-		printk("SELINGO ");
-	if (s & SWRAP)
-		printk("SWRAP ");
-	if (s & SDONE)
-		printk("SDONE ");
-	if (s & SPIORDY)
-		printk("SPIORDY ");
-	if (s & DMADONE)
-		printk("DMADONE ");
-
-	s = GETPORT(SSTAT1) & GETPORT(SIMODE1);
-
-	if (s & SELTO)
-		printk("SELTO ");
-	if (s & ATNTARG)
-		printk("ATNTARG ");
-	if (s & SCSIRSTI)
-		printk("SCSIRSTI ");
-	if (s & PHASEMIS)
-		printk("PHASEMIS ");
-	if (s & BUSFREE)
-		printk("BUSFREE ");
-	if (s & SCSIPERR)
-		printk("SCSIPERR ");
-	if (s & PHASECHG)
-		printk("PHASECHG ");
-	if (s & REQINIT)
-		printk("REQINIT ");
-	printk("); ");
-
-	printk("SXFRCTL0( ");
-
-	s = GETPORT(SXFRCTL0);
-	if (s & SCSIEN)
-		printk("SCSIEN ");
-	if (s & DMAEN)
-		printk("DMAEN ");
-	if (s & CH1)
-		printk("CH1 ");
-	if (s & CLRSTCNT)
-		printk("CLRSTCNT ");
-	if (s & SPIOEN)
-		printk("SPIOEN ");
-	if (s & CLRCH1)
-		printk("CLRCH1 ");
-	printk("); ");
-
-	printk("SIGNAL( ");
-
-	s = GETPORT(SCSISIG);
-	if (s & SIG_ATNI)
-		printk("ATNI ");
-	if (s & SIG_SELI)
-		printk("SELI ");
-	if (s & SIG_BSYI)
-		printk("BSYI ");
-	if (s & SIG_REQI)
-		printk("REQI ");
-	if (s & SIG_ACKI)
-		printk("ACKI ");
-	printk("); ");
-
-	printk("SELID (%02x), ", GETPORT(SELID));
-
-	printk("STCNT (%d), ", GETSTCNT());
-	
-	printk("SSTAT2( ");
-
-	s = GETPORT(SSTAT2);
-	if (s & SOFFSET)
-		printk("SOFFSET ");
-	if (s & SEMPTY)
-		printk("SEMPTY ");
-	if (s & SFULL)
-		printk("SFULL ");
-	printk("); SFCNT (%d); ", s & (SFULL | SFCNT));
-
-	s = GETPORT(SSTAT3);
-	printk("SCSICNT (%d), OFFCNT(%d), ", (s & 0xf0) >> 4, s & 0x0f);
-
-	printk("SSTAT4( ");
-	s = GETPORT(SSTAT4);
-	if (s & SYNCERR)
-		printk("SYNCERR ");
-	if (s & FWERR)
-		printk("FWERR ");
-	if (s & FRERR)
-		printk("FRERR ");
-	printk("); ");
-
-	printk("DMACNTRL0( ");
-	s = GETPORT(DMACNTRL0);
-	printk("%s ", s & _8BIT ? "8BIT" : "16BIT");
-	printk("%s ", s & DMA ? "DMA" : "PIO");
-	printk("%s ", s & WRITE_READ ? "WRITE" : "READ");
-	if (s & ENDMA)
-		printk("ENDMA ");
-	if (s & INTEN)
-		printk("INTEN ");
-	if (s & RSTFIFO)
-		printk("RSTFIFO ");
-	if (s & SWINT)
-		printk("SWINT ");
-	printk("); ");
-
-	printk("DMASTAT( ");
-	s = GETPORT(DMASTAT);
-	if (s & ATDONE)
-		printk("ATDONE ");
-	if (s & WORDRDY)
-		printk("WORDRDY ");
-	if (s & DFIFOFULL)
-		printk("DFIFOFULL ");
-	if (s & DFIFOEMP)
-		printk("DFIFOEMP ");
-	printk(")\n");
-#endif
-}
-
-/*
  * display enabled interrupts
  */
 static void disp_enintr(struct Scsi_Host *shpnt)
 {
-	int s;
-
-	printk(KERN_DEBUG "enabled interrupts ( ");
-
-	s = GETPORT(SIMODE0);
-	if (s & ENSELDO)
-		printk("ENSELDO ");
-	if (s & ENSELDI)
-		printk("ENSELDI ");
-	if (s & ENSELINGO)
-		printk("ENSELINGO ");
-	if (s & ENSWRAP)
-		printk("ENSWRAP ");
-	if (s & ENSDONE)
-		printk("ENSDONE ");
-	if (s & ENSPIORDY)
-		printk("ENSPIORDY ");
-	if (s & ENDMADONE)
-		printk("ENDMADONE ");
-
-	s = GETPORT(SIMODE1);
-	if (s & ENSELTIMO)
-		printk("ENSELTIMO ");
-	if (s & ENATNTARG)
-		printk("ENATNTARG ");
-	if (s & ENPHASEMIS)
-		printk("ENPHASEMIS ");
-	if (s & ENBUSFREE)
-		printk("ENBUSFREE ");
-	if (s & ENSCSIPERR)
-		printk("ENSCSIPERR ");
-	if (s & ENPHASECHG)
-		printk("ENPHASECHG ");
-	if (s & ENREQINIT)
-		printk("ENREQINIT ");
-	printk(")\n");
+	int s0, s1;
+
+	s0 = GETPORT(SIMODE0);
+	s1 = GETPORT(SIMODE1);
+
+	shost_printk(KERN_DEBUG, shpnt,
+		     "enabled interrupts (%s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
+		     (s0 & ENSELDO) ? "ENSELDO " : "",
+		     (s0 & ENSELDI) ? "ENSELDI " : "",
+		     (s0 & ENSELINGO) ? "ENSELINGO " : "",
+		     (s0 & ENSWRAP) ? "ENSWRAP " : "",
+		     (s0 & ENSDONE) ? "ENSDONE " : "",
+		     (s0 & ENSPIORDY) ? "ENSPIORDY " : "",
+		     (s0 & ENDMADONE) ? "ENDMADONE " : "",
+		     (s1 & ENSELTIMO) ? "ENSELTIMO " : "",
+		     (s1 & ENATNTARG) ? "ENATNTARG " : "",
+		     (s1 & ENPHASEMIS) ? "ENPHASEMIS " : "",
+		     (s1 & ENBUSFREE) ? "ENBUSFREE " : "",
+		     (s1 & ENSCSIPERR) ? "ENSCSIPERR " : "",
+		     (s1 & ENPHASECHG) ? "ENPHASECHG " : "",
+		     (s1 & ENREQINIT) ? "ENREQINIT " : "");
 }
 
 /*
@@ -2972,7 +2499,6 @@ static void show_queues(struct Scsi_Host *shpnt)
 	for (ptr = DISCONNECTED_SC; ptr; ptr = SCDATA(ptr) ? SCNEXT(ptr) : NULL)
 		show_command(ptr);
 
-	disp_ports(shpnt);
 	disp_enintr(shpnt);
 }
 
@@ -3276,15 +2802,6 @@ static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length)
 	if(!shpnt || !buffer || length<8 || strncmp("aha152x ", buffer, 8)!=0)
 		return -EINVAL;
 
-#if defined(AHA152X_DEBUG)
-	if(length>14 && strncmp("debug ", buffer+8, 6)==0) {
-		int debug = HOSTDATA(shpnt)->debug;
-
-		HOSTDATA(shpnt)->debug = simple_strtoul(buffer+14, NULL, 0);
-
-		printk(KERN_INFO "aha152x%d: debugging options set to 0x%04x (were 0x%04x)\n", HOSTNO, HOSTDATA(shpnt)->debug, debug);
-	} else
-#endif
 #if defined(AHA152X_STAT)
 	if(length>13 && strncmp("reset", buffer+8, 5)==0) {
 		int i;
@@ -3302,7 +2819,7 @@ static int aha152x_set_info(struct Scsi_Host *shpnt, char *buffer, int length)
 			HOSTDATA(shpnt)->time[i]=0;
 		}
 
-		printk(KERN_INFO "aha152x%d: stats reseted.\n", HOSTNO);
+		shost_printk(KERN_INFO, shpnt, "aha152x: stats reset.\n");
 
 	} else
 #endif
@@ -3343,29 +2860,6 @@ static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt)
 					(((HOSTDATA(shpnt)->syncrate[i] & 0x70) >> 4) + 2) * 50,
 				    HOSTDATA(shpnt)->syncrate[i] & 0x0f);
 	}
-#if defined(AHA152X_DEBUG)
-#define PDEBUG(flags,txt) \
-	if(HOSTDATA(shpnt)->debug & flags) SPRINTF("(%s) ", txt);
-
-	SPRINTF("enabled debugging options: ");
-
-	PDEBUG(debug_procinfo, "procinfo");
-	PDEBUG(debug_queue, "queue");
-	PDEBUG(debug_intr, "interrupt");
-	PDEBUG(debug_selection, "selection");
-	PDEBUG(debug_msgo, "message out");
-	PDEBUG(debug_msgi, "message in");
-	PDEBUG(debug_status, "status");
-	PDEBUG(debug_cmd, "command");
-	PDEBUG(debug_datai, "data in");
-	PDEBUG(debug_datao, "data out");
-	PDEBUG(debug_eh, "eh");
-	PDEBUG(debug_locking, "locks");
-	PDEBUG(debug_phases, "phases");
-
-	SPRINTF("\n");
-#endif
-
 	SPRINTF("\nqueue status:\n");
 	DO_LOCK(flags);
 	if (ISSUE_SC) {
@@ -3393,8 +2887,8 @@ static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt)
 
 #if defined(AHA152X_STAT)
 	SPRINTF("statistics:\n"
-	        "total commands:               %d\n"
-	        "disconnections:               %d\n"
+		"total commands:               %d\n"
+		"disconnections:               %d\n"
 		"busfree with check condition: %d\n"
 		"busfree without old command:  %d\n"
 		"busfree without new command:  %d\n"
@@ -3413,7 +2907,7 @@ static int aha152x_show_info(struct seq_file *m, struct Scsi_Host *shpnt)
 		HOSTDATA(shpnt)->busfree_without_any_action);
 	for(i=0; i<maxstate; i++) {
 		SPRINTF("%-10s %-12d %-12d %-12ld\n",
-		        states[i].name,
+			states[i].name,
 			HOSTDATA(shpnt)->count_trans[i],
 			HOSTDATA(shpnt)->count[i],
 			HOSTDATA(shpnt)->time[i]);
@@ -3671,25 +3165,19 @@ static int __init aha152x_init(void)
 			setup[setup_count].synchronous = aha152x[5];
 			setup[setup_count].delay       = aha152x[6];
 			setup[setup_count].ext_trans   = aha152x[7];
-#if defined(AHA152X_DEBUG)
-			setup[setup_count].debug       = aha152x[8];
-#endif
-	  	} else if(io[0]!=0 || irq[0]!=0) {
+		} else if(io[0]!=0 || irq[0]!=0) {
 			if(io[0]!=0)  setup[setup_count].io_port = io[0];
 			if(irq[0]!=0) setup[setup_count].irq     = irq[0];
 
-	    		setup[setup_count].scsiid      = scsiid[0];
-	    		setup[setup_count].reconnect   = reconnect[0];
-	    		setup[setup_count].parity      = parity[0];
-	    		setup[setup_count].synchronous = sync[0];
-	    		setup[setup_count].delay       = delay[0];
-	    		setup[setup_count].ext_trans   = exttrans[0];
-#if defined(AHA152X_DEBUG)
-			setup[setup_count].debug       = debug[0];
-#endif
+			setup[setup_count].scsiid      = scsiid[0];
+			setup[setup_count].reconnect   = reconnect[0];
+			setup[setup_count].parity      = parity[0];
+			setup[setup_count].synchronous = sync[0];
+			setup[setup_count].delay       = delay[0];
+			setup[setup_count].ext_trans   = exttrans[0];
 		}
 
-          	if (checksetup(&setup[setup_count]))
+		if (checksetup(&setup[setup_count]))
 			setup_count++;
 		else
 			printk(KERN_ERR "aha152x: invalid module params io=0x%x, irq=%d,scsiid=%d,reconnect=%d,parity=%d,sync=%d,delay=%d,exttrans=%d\n",
@@ -3714,22 +3202,16 @@ static int __init aha152x_init(void)
 			setup[setup_count].synchronous = aha152x1[5];
 			setup[setup_count].delay       = aha152x1[6];
 			setup[setup_count].ext_trans   = aha152x1[7];
-#if defined(AHA152X_DEBUG)
-			setup[setup_count].debug       = aha152x1[8];
-#endif
-	  	} else if(io[1]!=0 || irq[1]!=0) {
+		} else if(io[1]!=0 || irq[1]!=0) {
 			if(io[1]!=0)  setup[setup_count].io_port = io[1];
 			if(irq[1]!=0) setup[setup_count].irq     = irq[1];
 
-	    		setup[setup_count].scsiid      = scsiid[1];
-	    		setup[setup_count].reconnect   = reconnect[1];
-	    		setup[setup_count].parity      = parity[1];
-	    		setup[setup_count].synchronous = sync[1];
-	    		setup[setup_count].delay       = delay[1];
-	    		setup[setup_count].ext_trans   = exttrans[1];
-#if defined(AHA152X_DEBUG)
-			setup[setup_count].debug       = debug[1];
-#endif
+			setup[setup_count].scsiid      = scsiid[1];
+			setup[setup_count].reconnect   = reconnect[1];
+			setup[setup_count].parity      = parity[1];
+			setup[setup_count].synchronous = sync[1];
+			setup[setup_count].delay       = delay[1];
+			setup[setup_count].ext_trans   = exttrans[1];
 		}
 		if (checksetup(&setup[setup_count]))
 			setup_count++;
@@ -3776,9 +3258,6 @@ static int __init aha152x_init(void)
 			setup[setup_count].synchronous = 1;
 			setup[setup_count].delay       = DELAY_DEFAULT;
 			setup[setup_count].ext_trans   = 0;
-#if defined(AHA152X_DEBUG)
-			setup[setup_count].debug       = DEBUG_DEFAULT;
-#endif
 #if defined(__ISAPNP__)
 			pnpdev[setup_count]            = dev;
 #endif
@@ -3847,9 +3326,6 @@ static int __init aha152x_init(void)
 			setup[setup_count].synchronous = conf.cf_syncneg;
 			setup[setup_count].delay = DELAY_DEFAULT;
 			setup[setup_count].ext_trans = 0;
-#if defined(AHA152X_DEBUG)
-			setup[setup_count].debug = DEBUG_DEFAULT;
-#endif
 			setup_count++;
 
 		}
@@ -3903,11 +3379,8 @@ module_exit(aha152x_exit);
 #if !defined(MODULE)
 static int __init aha152x_setup(char *str)
 {
-#if defined(AHA152X_DEBUG)
-	int ints[11];
-#else
 	int ints[10];
-#endif
+
 	get_options(str, ARRAY_SIZE(ints), ints);
 
 	if(setup_count>=ARRAY_SIZE(setup)) {
@@ -3924,16 +3397,9 @@ static int __init aha152x_setup(char *str)
 	setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1;
 	setup[setup_count].delay       = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT;
 	setup[setup_count].ext_trans   = ints[0] >= 8 ? ints[8] : 0;
-#if defined(AHA152X_DEBUG)
-	setup[setup_count].debug       = ints[0] >= 9 ? ints[9] : DEBUG_DEFAULT;
-	if (ints[0] > 9) {
-		printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
-		       "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>[,<DEBUG>]]]]]]]]\n");
-#else
 	if (ints[0] > 8) {                                                /*}*/
 		printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>"
 		       "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n");
-#endif
 	} else {
 		setup_count++;
 		return 0;
Signature · 1 line
1.8.5.2
Reviewed-by on v2 2/20
#3 lore raw

Re: [PATCH 02/20] aha152x: Debug output update and whitespace cleanup

Quoted 4 lines · Hannes Reinecke

Remove all uncommented debugging code and move all printk() statements over to dev_printk().
And while we're at it we should be doing a whitespace cleanup, too.

Looks good,

#4 lore raw

PATCH v2 3/20 sd: Remove scsi_print_sense() in sd_done()

In reply to Hannes Reinecke

sd_done() was calling scsi_print_sense() for a sense code of 'NO_SENSE'.

---
 drivers/scsi/sd.c | 1 -
 1 file changed, 1 deletion(-)
drivers/scsi/sd.c +0 -1
index aa43496..f5ca203 100644
@@ -1730,7 +1730,6 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 		 * unknown amount of data was transferred so treat it as an
 		 * error.
 		 */
-		scsi_print_sense("sd", SCpnt);
 		SCpnt->result = 0;
 		memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 		break;
Signature · 1 line
1.8.5.2
#5 lore raw

PATCH v2 4/20 scsi: introduce sdev_prefix_printk()

In reply to Hannes Reinecke

Like scmd_printk(), but the device name is passed in as a string. Can be used by eg ULDs which do not have access to the scsi_cmnd structure.

---
 include/scsi/scsi_device.h | 9 +++++++++
 1 file changed, 9 insertions(+)
include/scsi/scsi_device.h +9 -0
index 1a0d184..4e091c8 100644
@@ -243,6 +243,15 @@ struct scsi_dh_data {
 #define sdev_dbg(sdev, fmt, a...) \
 	dev_dbg(&(sdev)->sdev_gendev, fmt, ##a)
 
+/*
+ * like scmd_printk, but the device name is passed in
+ * as a string pointer
+ */
+#define sdev_prefix_printk(l, sdev, p, fmt, a...)			\
+	(p) ?								\
+	sdev_printk(l, sdev, "[%s] " fmt, p, ##a) :			\
+	sdev_printk(l, sdev, fmt, ##a)
+
 #define scmd_printk(prefix, scmd, fmt, a...)				\
         (scmd)->request->rq_disk ?					\
 	sdev_printk(prefix, (scmd)->device, "[%s] " fmt,		\
Signature · 1 line
1.8.5.2
#7 lore raw

PATCH v2 5/20 scsi: Use sdev as argument for sense code printing

In reply to Hannes Reinecke

We should be using the standard dev_printk() variants for sense code printing.

---
 drivers/scsi/53c700.c      |   2 +-
 drivers/scsi/ch.c          |   2 +-
 drivers/scsi/constants.c   | 113 +++++++++++++++++++++------------------------
 drivers/scsi/osst.c        |   8 ++--
 drivers/scsi/scsi.c        |   2 +-
 drivers/scsi/scsi_error.c  |   2 +-
 drivers/scsi/scsi_ioctl.c  |   2 +-
 drivers/scsi/scsi_lib.c    |   4 +-
 drivers/scsi/sd.c          |   9 ++--
 drivers/scsi/sg.c          |   2 +-
 drivers/scsi/sr_ioctl.c    |   6 +--
 drivers/scsi/st.c          |   6 ++-
 drivers/scsi/storvsc_drv.c |   3 +-
 include/scsi/scsi_dbg.h    |  17 ++++---
 14 files changed, 91 insertions(+), 87 deletions(-)
drivers/scsi/53c700.c +1 -1
index fabd4be..68bf423 100644
@@ -602,7 +602,7 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
 #ifdef NCR_700_DEBUG
 			printk(" ORIGINAL CMD %p RETURNED %d, new return is %d sense is\n",
 			       SCp, SCp->cmnd[7], result);
-			scsi_print_sense("53c700", SCp);
+			scsi_print_sense(SCp);
 
 #endif
 			dma_unmap_single(hostdata->dev, slot->dma_handle,
drivers/scsi/ch.c +1 -1
index ef5ae0d..eea94a9 100644
@@ -207,7 +207,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
 	DPRINTK("result: 0x%x\n",result);
 	if (driver_byte(result) & DRIVER_SENSE) {
 		if (debug)
-			scsi_print_sense_hdr(ch->name, &sshdr);
+			scsi_print_sense_hdr(ch->device, ch->name, &sshdr);
 		errno = ch_find_errno(&sshdr);
 
 		switch(sshdr.sense_key) {
drivers/scsi/constants.c +53 -60

179 lines not on this page · raw message

drivers/scsi/osst.c +5 -3
index 0727ea7..4ba2a9f 100644
@@ -259,9 +259,10 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt)
 		   SRpnt->cmd[0], SRpnt->cmd[1], SRpnt->cmd[2],
 		   SRpnt->cmd[3], SRpnt->cmd[4], SRpnt->cmd[5]);
 		if (scode) printk(OSST_DEB_MSG "%s:D: Sense: %02x, ASC: %02x, ASCQ: %02x\n",
-			       	name, scode, sense[12], sense[13]);
+				  name, scode, sense[12], sense[13]);
 		if (cmdstatp->have_sense)
-			__scsi_print_sense("osst ", SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
+			__scsi_print_sense(STp->device, name,
+					   SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
 	}
 	else
 #endif
@@ -275,7 +276,8 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt)
 		 SRpnt->cmd[0] != TEST_UNIT_READY)) { /* Abnormal conditions for tape */
 		if (cmdstatp->have_sense) {
 			printk(KERN_WARNING "%s:W: Command with sense data:\n", name);
-			__scsi_print_sense("osst ", SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
+			__scsi_print_sense(STp->device, name,
+					   SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
 		}
 		else {
 			static	int	notyetprinted = 1;
drivers/scsi/scsi.c +1 -1
index df33060..8954036 100644
@@ -598,7 +598,7 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
 			scsi_print_result(cmd);
 			scsi_print_command(cmd);
 			if (status_byte(cmd->result) & CHECK_CONDITION)
-				scsi_print_sense("", cmd);
+				scsi_print_sense(cmd);
 			if (level > 3)
 				scmd_printk(KERN_INFO, cmd,
 					    "scsi host busy %d failed %d\n",
drivers/scsi/scsi_error.c +1 -1
index 6b20ef3..6c99624 100644
@@ -1180,7 +1180,7 @@ int scsi_eh_get_sense(struct list_head *work_q,
 		SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_INFO, scmd,
 			"sense requested for %p result %x\n",
 			scmd, scmd->result));
-		SCSI_LOG_ERROR_RECOVERY(3, scsi_print_sense("bh", scmd));
+		SCSI_LOG_ERROR_RECOVERY(3, scsi_print_sense(scmd));
 
 		rtn = scsi_decide_disposition(scmd);
 
drivers/scsi/scsi_ioctl.c +1 -1
index 1aaaf43..7d2de08 100644
@@ -126,7 +126,7 @@ static int ioctl_internal_command(struct scsi_device *sdev, char *cmd,
 			sdev_printk(KERN_INFO, sdev,
 				    "ioctl_internal_command return code = %x\n",
 				    result);
-			scsi_print_sense_hdr("   ", &sshdr);
+			scsi_print_sense_hdr(sdev, NULL, &sshdr);
 			break;
 		}
 	}
drivers/scsi/scsi_lib.c +2 -2
index 8b76231..de178f7 100644
@@ -911,7 +911,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 		if ((sshdr.asc == 0x0) && (sshdr.ascq == 0x1d))
 			;
 		else if (!(req->cmd_flags & REQ_QUIET))
-			scsi_print_sense("", cmd);
+			scsi_print_sense(cmd);
 		result = 0;
 		/* BLOCK_PC may have set error */
 		error = 0;
@@ -1040,7 +1040,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 		if (!(req->cmd_flags & REQ_QUIET)) {
 			scsi_print_result(cmd);
 			if (driver_byte(result) & DRIVER_SENSE)
-				scsi_print_sense("", cmd);
+				scsi_print_sense(cmd);
 			scsi_print_command(cmd);
 		}
 		if (!scsi_end_request(req, error, blk_rq_err_bytes(req), 0))
drivers/scsi/sd.c +5 -4
index f5ca203..aac267a 100644
@@ -3319,10 +3319,11 @@ module_exit(exit_sd);
 static void sd_print_sense_hdr(struct scsi_disk *sdkp,
 			       struct scsi_sense_hdr *sshdr)
 {
-	sd_printk(KERN_INFO, sdkp, " ");
-	scsi_show_sense_hdr(sshdr);
-	sd_printk(KERN_INFO, sdkp, " ");
-	scsi_show_extd_sense(sshdr->asc, sshdr->ascq);
+	scsi_show_sense_hdr(sdkp->device,
+			    sdkp->disk ? sdkp->disk->disk_name : NULL, sshdr);
+	scsi_show_extd_sense(sdkp->device,
+			     sdkp->disk ? sdkp->disk->disk_name : NULL,
+			     sshdr->asc, sshdr->ascq);
 }
 
 static void sd_print_result(struct scsi_disk *sdkp, int result)
drivers/scsi/sg.c +1 -1
index 01cf888..16f826e 100644
@@ -1360,7 +1360,7 @@ sg_rq_end_io(struct request *rq, int uptodate)
 		if ((sdp->sgdebug > 0) &&
 		    ((CHECK_CONDITION == srp->header.masked_status) ||
 		     (COMMAND_TERMINATED == srp->header.masked_status)))
-			__scsi_print_sense(__func__, sense,
+			__scsi_print_sense(sdp->device, __func__, sense,
 					   SCSI_SENSE_BUFFERSIZE);
 
 		/* Following if statement is a patch supplied by Eric Youngdale */
drivers/scsi/sr_ioctl.c +3 -3
index 6389fcf..17e0c2b 100644
@@ -246,7 +246,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
 					  "CDROM not ready.  Make sure there "
 					  "is a disc in the drive.\n");
 #ifdef DEBUG
-			scsi_print_sense_hdr("sr", &sshdr);
+			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
 #endif
 			err = -ENOMEDIUM;
 			break;
@@ -258,14 +258,14 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
 				err = -EDRIVE_CANT_DO_THIS;
 #ifdef DEBUG
 			__scsi_print_command(cgc->cmd);
-			scsi_print_sense_hdr("sr", &sshdr);
+			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
 #endif
 			break;
 		default:
 			sr_printk(KERN_ERR, cd,
 				  "CDROM (ioctl) error, command: ");
 			__scsi_print_command(cgc->cmd);
-			scsi_print_sense_hdr("sr", &sshdr);
+			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
 			err = -EIO;
 		}
 	}
drivers/scsi/st.c +4 -2
index aff9689..c0cc4ca 100644
@@ -374,7 +374,8 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt)
 			    SRpnt->cmd[0], SRpnt->cmd[1], SRpnt->cmd[2],
 			    SRpnt->cmd[3], SRpnt->cmd[4], SRpnt->cmd[5]);
 		if (cmdstatp->have_sense)
-			 __scsi_print_sense(name, SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
+			__scsi_print_sense(STp->device, name,
+					   SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
 	} ) /* end DEB */
 	if (!debugging) { /* Abnormal conditions for tape */
 		if (!cmdstatp->have_sense)
@@ -390,7 +391,8 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt)
 			 SRpnt->cmd[0] != MODE_SENSE &&
 			 SRpnt->cmd[0] != TEST_UNIT_READY) {
 
-			__scsi_print_sense(name, SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
+			__scsi_print_sense(STp->device, name,
+					   SRpnt->sense, SCSI_SENSE_BUFFERSIZE);
 		}
 	}
 
drivers/scsi/storvsc_drv.c +2 -1
index fecac5d0..9168d1b 100644
@@ -1097,7 +1097,8 @@ static void storvsc_command_completion(struct storvsc_cmd_request *cmd_request)
 	if (scmnd->result) {
 		if (scsi_normalize_sense(scmnd->sense_buffer,
 				SCSI_SENSE_BUFFERSIZE, &sense_hdr))
-			scsi_print_sense_hdr("storvsc", &sense_hdr);
+			scsi_print_sense_hdr(scmnd->device, "storvsc",
+					     &sense_hdr);
 	}
 
 	if (vm_srb->srb_status != SRB_STATUS_SUCCESS)
include/scsi/scsi_dbg.h +11 -6
index 5a43a4c..cd0c873 100644
@@ -2,21 +2,26 @@
 #define _SCSI_SCSI_DBG_H
 
 struct scsi_cmnd;
+struct scsi_device;
 struct scsi_sense_hdr;
 
 extern void scsi_print_command(struct scsi_cmnd *);
 extern void __scsi_print_command(unsigned char *);
-extern void scsi_show_extd_sense(unsigned char, unsigned char);
-extern void scsi_show_sense_hdr(struct scsi_sense_hdr *);
-extern void scsi_print_sense_hdr(const char *, struct scsi_sense_hdr *);
-extern void scsi_print_sense(char *, struct scsi_cmnd *);
-extern void __scsi_print_sense(const char *name,
+extern void scsi_show_extd_sense(struct scsi_device *, const char *,
+				 unsigned char, unsigned char);
+extern void scsi_show_sense_hdr(struct scsi_device *, const char *,
+				struct scsi_sense_hdr *);
+extern void scsi_print_sense_hdr(struct scsi_device *, const char *,
+				 struct scsi_sense_hdr *);
+extern void scsi_print_sense(struct scsi_cmnd *);
+extern void __scsi_print_sense(struct scsi_device *, const char *name,
 			       const unsigned char *sense_buffer,
 			       int sense_len);
 extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
 extern void scsi_print_status(unsigned char);
 extern const char *scsi_sense_key_string(unsigned char);
-extern const char *scsi_extd_sense_format(unsigned char, unsigned char);
+extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
+					  const char **);
 
 #endif /* _SCSI_SCSI_DBG_H */
Signature · 1 line
1.8.5.2
#8 lore raw

PATCH v2 6/20 scsi: stop decoding if scsi_normalize_sense() fails

In reply to Hannes Reinecke

If scsi_normalize_sense() fails we couldn't decode the sense buffer, and the scsi_sense_hdr fields are invalid. For those cases we should rather dump the sense buffer and not try to decode invalid fields.

---
 drivers/scsi/constants.c | 32 ++++++++++++++------------------
 1 file changed, 14 insertions(+), 18 deletions(-)
drivers/scsi/constants.c +14 -18
index 4ada834..7febdb7 100644
@@ -1429,25 +1429,18 @@ scsi_print_sense_hdr(struct scsi_device *sdev, const char *name,
 EXPORT_SYMBOL(scsi_print_sense_hdr);
 
 static void
-scsi_decode_sense_buffer(const unsigned char *sense_buffer, int sense_len,
-		       struct scsi_sense_hdr *sshdr)
+scsi_dump_sense_buffer(struct scsi_device *sdev, const char *name,
+		       const unsigned char *sense_buffer, int sense_len)
 {
-	int k, num, res;
+	char linebuf[128];
+	int i, linelen;
 
-	res = scsi_normalize_sense(sense_buffer, sense_len, sshdr);
-	if (0 == res) {
-		/* this may be SCSI-1 sense data */
-		num = (sense_len < 32) ? sense_len : 32;
-		printk("Unrecognized sense data (in hex):");
-		for (k = 0; k < num; ++k) {
-			if (0 == (k % 16)) {
-				printk("\n");
-				printk(KERN_INFO "        ");
-			}
-			printk("%02x ", sense_buffer[k]);
-		}
-		printk("\n");
-		return;
+	for (i = 0; i < sense_len; i += 16) {
+		linelen = min(sense_len - i, 16);
+		hex_dump_to_buffer(sense_buffer + i, linelen, 16, 1,
+				   linebuf, sizeof(linebuf), false);
+		sdev_prefix_printk(KERN_INFO, sdev, name,
+				   "Sense: %s\n", linebuf);
 	}
 }
 
@@ -1518,7 +1511,10 @@ void __scsi_print_sense(struct scsi_device *sdev, const char *name,
 {
 	struct scsi_sense_hdr sshdr;
 
-	scsi_decode_sense_buffer(sense_buffer, sense_len, &sshdr);
+	if (!scsi_normalize_sense(sense_buffer, sense_len, &sshdr)) {
+		scsi_dump_sense_buffer(sdev, name, sense_buffer, sense_len);
+		return;
+	}
 	scsi_show_sense_hdr(sdev, name, &sshdr);
 	scsi_decode_sense_extras(sense_buffer, sense_len, &sshdr);
 	scsi_show_extd_sense(sdev, name, sshdr.asc, sshdr.ascq);
Signature · 1 line
1.8.5.2
#9 lore raw

Re: [PATCH 06/20] scsi: stop decoding if scsi_normalize_sense() fails

Quoted 4 lines · Hannes Reinecke

If scsi_normalize_sense() fails we couldn't decode the sense buffer, and the scsi_sense_hdr fields are invalid. For those cases we should rather dump the sense buffer and not try to decode invalid fields.

This description still doesn't make sense to me. What you describe is both old and new behavior, you just dump the raw buffer differently.

#10 lore raw

PATCH v2 7/20 scsi: do not decode sense extras

In reply to Hannes Reinecke

Currently we're only decoding sense extras for tape devices. And even there only for fixed format sense formats. As this is of rather limited use in the general case we should be stop trying to decode sense extras; the tape driver does its own decoding anyway.

---
 drivers/scsi/constants.c | 62 ------------------------------------------------
 1 file changed, 62 deletions(-)
drivers/scsi/constants.c +0 -62
index 7febdb7..2850062e 100644
@@ -1444,67 +1444,6 @@ scsi_dump_sense_buffer(struct scsi_device *sdev, const char *name,
 	}
 }
 
-static void
-scsi_decode_sense_extras(const unsigned char *sense_buffer, int sense_len,
-			 struct scsi_sense_hdr *sshdr)
-{
-	int k, num, res;
-
-	if (sshdr->response_code < 0x72)
-	{
-		/* only decode extras for "fixed" format now */
-		char buff[80];
-		int blen, fixed_valid;
-		unsigned int info;
-
-		fixed_valid = sense_buffer[0] & 0x80;
-		info = ((sense_buffer[3] << 24) | (sense_buffer[4] << 16) |
-			(sense_buffer[5] << 8) | sense_buffer[6]);
-		res = 0;
-		memset(buff, 0, sizeof(buff));
-		blen = sizeof(buff) - 1;
-		if (fixed_valid)
-			res += snprintf(buff + res, blen - res,
-					"Info fld=0x%x", info);
-		if (sense_buffer[2] & 0x80) {
-			/* current command has read a filemark */
-			if (res > 0)
-				res += snprintf(buff + res, blen - res, ", ");
-			res += snprintf(buff + res, blen - res, "FMK");
-		}
-		if (sense_buffer[2] & 0x40) {
-			/* end-of-medium condition exists */
-			if (res > 0)
-				res += snprintf(buff + res, blen - res, ", ");
-			res += snprintf(buff + res, blen - res, "EOM");
-		}
-		if (sense_buffer[2] & 0x20) {
-			/* incorrect block length requested */
-			if (res > 0)
-				res += snprintf(buff + res, blen - res, ", ");
-			res += snprintf(buff + res, blen - res, "ILI");
-		}
-		if (res > 0)
-			printk("%s\n", buff);
-	} else if (sshdr->additional_length > 0) {
-		/* descriptor format with sense descriptors */
-		num = 8 + sshdr->additional_length;
-		num = (sense_len < num) ? sense_len : num;
-		printk("Descriptor sense data with sense descriptors "
-		       "(in hex):");
-		for (k = 0; k < num; ++k) {
-			if (0 == (k % 16)) {
-				printk("\n");
-				printk(KERN_INFO "        ");
-			}
-			printk("%02x ", sense_buffer[k]);
-		}
-
-		printk("\n");
-	}
-
-}
-
 /* Normalize and print sense buffer with name prefix */
 void __scsi_print_sense(struct scsi_device *sdev, const char *name,
 			const unsigned char *sense_buffer, int sense_len)
@@ -1516,7 +1455,6 @@ void __scsi_print_sense(struct scsi_device *sdev, const char *name,
 		return;
 	}
 	scsi_show_sense_hdr(sdev, name, &sshdr);
-	scsi_decode_sense_extras(sense_buffer, sense_len, &sshdr);
 	scsi_show_extd_sense(sdev, name, sshdr.asc, sshdr.ascq);
 }
 EXPORT_SYMBOL(__scsi_print_sense);
Signature · 1 line
1.8.5.2
Reviewed-by on v2 7/20
#11 lore raw

Re: [PATCH 07/20] scsi: do not decode sense extras

Quoted 7 lines · Hannes Reinecke

Currently we're only decoding sense extras for tape devices. And even there only for fixed format sense formats. As this is of rather limited use in the general case we should be stop trying to decode sense extras; the tape driver does its own decoding anyway.

Looks good,

#12 lore raw

PATCH v2 8/20 scsi: use 'bool' as return value for scsi_normalize_sense()

In reply to Hannes Reinecke

Convert scsi_normalize_sense() and frieds to return 'bool' instead of an integer.

---
 drivers/scsi/scsi_error.c | 14 +++++++-------
 drivers/scsi/scsi_lib.c   |  2 +-
 include/scsi/scsi_eh.h    | 12 ++++++------
 3 files changed, 14 insertions(+), 14 deletions(-)
drivers/scsi/scsi_error.c +7 -7
index 6c99624..8a6d382 100644
@@ -2408,20 +2408,20 @@ EXPORT_SYMBOL(scsi_reset_provider);
  *	responded to a SCSI command with the CHECK_CONDITION status.
  *
  * Return value:
- *	1 if valid sense data information found, else 0;
+ *	true if valid sense data information found, else false;
  */
-int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
-                         struct scsi_sense_hdr *sshdr)
+bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
+			  struct scsi_sense_hdr *sshdr)
 {
 	if (!sense_buffer || !sb_len)
-		return 0;
+		return false;
 
 	memset(sshdr, 0, sizeof(struct scsi_sense_hdr));
 
 	sshdr->response_code = (sense_buffer[0] & 0x7f);
 
 	if (!scsi_sense_valid(sshdr))
-		return 0;
+		return false;
 
 	if (sshdr->response_code >= 0x72) {
 		/*
@@ -2451,11 +2451,11 @@ int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
 		}
 	}
 
-	return 1;
+	return true;
 }
 EXPORT_SYMBOL(scsi_normalize_sense);
 
-int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
+bool scsi_command_normalize_sense(struct scsi_cmnd *cmd,
 				 struct scsi_sense_hdr *sshdr)
 {
 	return scsi_normalize_sense(cmd->sense_buffer,
drivers/scsi/scsi_lib.c +1 -1
index de178f7..8cad004 100644
@@ -830,7 +830,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 	struct request *req = cmd->request;
 	int error = 0;
 	struct scsi_sense_hdr sshdr;
-	int sense_valid = 0;
+	bool sense_valid = false;
 	int sense_deferred = 0;
 	enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY,
 	      ACTION_DELAYED_RETRY} action;
include/scsi/scsi_eh.h +6 -6
index 06a8790..1427a66 100644
@@ -27,7 +27,7 @@ struct scsi_sense_hdr {		/* See SPC-3 section 4.5 */
 	u8 additional_length;	/* always 0 for fixed sense format */
 };
 
-static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_valid(struct scsi_sense_hdr *sshdr)
 {
 	if (!sshdr)
 		return 0;
@@ -42,12 +42,12 @@ extern void scsi_eh_flush_done_q(struct list_head *done_q);
 extern void scsi_report_bus_reset(struct Scsi_Host *, int);
 extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
 extern int scsi_block_when_processing_errors(struct scsi_device *);
-extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
-		struct scsi_sense_hdr *sshdr);
-extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
-		struct scsi_sense_hdr *sshdr);
+extern bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
+				 struct scsi_sense_hdr *sshdr);
+extern bool scsi_command_normalize_sense(struct scsi_cmnd *cmd,
+					 struct scsi_sense_hdr *sshdr);
 
-static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
 {
 	return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
 }
Signature · 1 line
1.8.5.2
#13 lore raw

Re: [PATCH 08/20] scsi: use 'bool' as return value for scsi_normalize_sense()

Quoted 72 lines · Hannes Reinecke

Convert scsi_normalize_sense() and frieds to return 'bool' instead of an integer.

---
  drivers/scsi/scsi_error.c | 14 +++++++-------
  drivers/scsi/scsi_lib.c   |  2 +-
  include/scsi/scsi_eh.h    | 12 ++++++------
  3 files changed, 14 insertions(+), 14 deletions(-)
drivers/scsi/scsi_error.c +7 -7
index 6c99624..8a6d382 100644
@@ -2408,20 +2408,20 @@ EXPORT_SYMBOL(scsi_reset_provider);
   *	responded to a SCSI command with the CHECK_CONDITION status.
   *
   * Return value:
- *	1 if valid sense data information found, else 0;
+ *	true if valid sense data information found, else false;
   */
-int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
-                         struct scsi_sense_hdr *sshdr)
+bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
+			  struct scsi_sense_hdr *sshdr)
  {
  	if (!sense_buffer || !sb_len)
-		return 0;
+		return false;
 
  	memset(sshdr, 0, sizeof(struct scsi_sense_hdr));
 
  	sshdr->response_code = (sense_buffer[0] & 0x7f);
 
  	if (!scsi_sense_valid(sshdr))
-		return 0;
+		return false;
 
  	if (sshdr->response_code >= 0x72) {
  		/*
@@ -2451,11 +2451,11 @@ int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
  		}
  	}
 
-	return 1;
+	return true;
  }
  EXPORT_SYMBOL(scsi_normalize_sense);
 
-int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
+bool scsi_command_normalize_sense(struct scsi_cmnd *cmd,
  				 struct scsi_sense_hdr *sshdr)
  {
  	return scsi_normalize_sense(cmd->sense_buffer,
drivers/scsi/scsi_lib.c +1 -1
index de178f7..8cad004 100644
@@ -830,7 +830,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
  	struct request *req = cmd->request;
  	int error = 0;
  	struct scsi_sense_hdr sshdr;
-	int sense_valid = 0;
+	bool sense_valid = false;
  	int sense_deferred = 0;
  	enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY,
  	      ACTION_DELAYED_RETRY} action;
include/scsi/scsi_eh.h +0 -0
index 06a8790..1427a66 100644

include/scsi/scsi_eh.h struct scsi_sense_hdr { /* See SPC-3 section 4.5 */ · line 33

Quoted 8 lines
include/scsi/scsi_eh.h +1 -1
@@ -27,7 +27,7 @@ struct scsi_sense_hdr {		/* See SPC-3 section 4.5 */
  	u8 additional_length;	/* always 0 for fixed sense format */
  };
 
-static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_valid(struct scsi_sense_hdr *sshdr)
  {
  	if (!sshdr)
  		return 0;

Should be "return false;"

The others in this patch look good.

Thanks,
Yoshihiro YUNOMAE

Quoted 19 lines
include/scsi/scsi_eh.h +5 -5
@@ -42,12 +42,12 @@ extern void scsi_eh_flush_done_q(struct list_head *done_q);
  extern void scsi_report_bus_reset(struct Scsi_Host *, int);
  extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
  extern int scsi_block_when_processing_errors(struct scsi_device *);
-extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
-		struct scsi_sense_hdr *sshdr);
-extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
-		struct scsi_sense_hdr *sshdr);
+extern bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
+				 struct scsi_sense_hdr *sshdr);
+extern bool scsi_command_normalize_sense(struct scsi_cmnd *cmd,
+					 struct scsi_sense_hdr *sshdr);
 
-static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
  {
  	return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
  }
Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
#14 lore raw

Re: [PATCH 08/20] scsi: use 'bool' as return value for scsi_normalize_sense()

Quoted 76 lines · Yoshihiro YUNOMAE
Quoted 75 lines · Hannes Reinecke

Convert scsi_normalize_sense() and frieds to return 'bool' instead of an integer.

---
  drivers/scsi/scsi_error.c | 14 +++++++-------
  drivers/scsi/scsi_lib.c   |  2 +-
  include/scsi/scsi_eh.h    | 12 ++++++------
  3 files changed, 14 insertions(+), 14 deletions(-)
drivers/scsi/scsi_error.c +7 -7
index 6c99624..8a6d382 100644
@@ -2408,20 +2408,20 @@ EXPORT_SYMBOL(scsi_reset_provider);
   *	responded to a SCSI command with the CHECK_CONDITION status.
   *
   * Return value:
- *	1 if valid sense data information found, else 0;
+ *	true if valid sense data information found, else false;
   */
-int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
-                         struct scsi_sense_hdr *sshdr)
+bool scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
+			  struct scsi_sense_hdr *sshdr)
  {
  	if (!sense_buffer || !sb_len)
-		return 0;
+		return false;
 
  	memset(sshdr, 0, sizeof(struct scsi_sense_hdr));
 
  	sshdr->response_code = (sense_buffer[0] & 0x7f);
 
  	if (!scsi_sense_valid(sshdr))
-		return 0;
+		return false;
 
  	if (sshdr->response_code >= 0x72) {
  		/*
@@ -2451,11 +2451,11 @@ int scsi_normalize_sense(const u8 *sense_buffer, int sb_len,
  		}
  	}
 
-	return 1;
+	return true;
  }
  EXPORT_SYMBOL(scsi_normalize_sense);
 
-int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
+bool scsi_command_normalize_sense(struct scsi_cmnd *cmd,
  				 struct scsi_sense_hdr *sshdr)
  {
  	return scsi_normalize_sense(cmd->sense_buffer,
drivers/scsi/scsi_lib.c +1 -1
index de178f7..8cad004 100644
@@ -830,7 +830,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
  	struct request *req = cmd->request;
  	int error = 0;
  	struct scsi_sense_hdr sshdr;
-	int sense_valid = 0;
+	bool sense_valid = false;
  	int sense_deferred = 0;
  	enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY,
  	      ACTION_DELAYED_RETRY} action;
include/scsi/scsi_eh.h +0 -0
index 06a8790..1427a66 100644
@@ -27,7 +27,7 @@ struct scsi_sense_hdr {		/* See SPC-3 section 4.5 */
  	u8 additional_length;	/* always 0 for fixed sense format */
  };
 
Quoted 8 lines

include/scsi/scsi_eh.h struct scsi_sense_hdr { /* See SPC-3 section 4.5 */ · line 33

Quoted 5 lines
include/scsi/scsi_eh.h +1 -1
-static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
+static inline bool scsi_sense_valid(struct scsi_sense_hdr *sshdr)
  {
  	if (!sshdr)
  		return 0;

Should be "return false;"

Bah. You are correct.

Cheers,

Hannes

Signature · 8 lines
Dr. Hannes Reinecke		      zSeries & Storage
[email protected]			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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#16 lore raw

PATCH v2 9/20 scsi: remove scsi_print_status()

In reply to Hannes Reinecke

Last caller is gone, so we can remove it.

---
 drivers/scsi/constants.c | 35 -----------------------------------
 include/scsi/scsi_dbg.h  |  1 -
 2 files changed, 36 deletions(-)
drivers/scsi/constants.c +0 -35
index 2850062e..d3915d8 100644
@@ -433,41 +433,6 @@ void scsi_print_command(struct scsi_cmnd *cmd)
 }
 EXPORT_SYMBOL(scsi_print_command);
 
-/**
- *	scsi_print_status - print scsi status description
- *	@scsi_status: scsi status value
- *
- *	If the status is recognized, the description is printed.
- *	Otherwise "Unknown status" is output. No trailing space.
- *	If CONFIG_SCSI_CONSTANTS is not set, then print status in hex
- *	(e.g. "0x2" for Check Condition).
- **/
-void
-scsi_print_status(unsigned char scsi_status) {
-#ifdef CONFIG_SCSI_CONSTANTS
-	const char * ccp;
-
-	switch (scsi_status) {
-	case 0:    ccp = "Good"; break;
-	case 0x2:  ccp = "Check Condition"; break;
-	case 0x4:  ccp = "Condition Met"; break;
-	case 0x8:  ccp = "Busy"; break;
-	case 0x10: ccp = "Intermediate"; break;
-	case 0x14: ccp = "Intermediate-Condition Met"; break;
-	case 0x18: ccp = "Reservation Conflict"; break;
-	case 0x22: ccp = "Command Terminated"; break;	/* obsolete */
-	case 0x28: ccp = "Task set Full"; break;	/* was: Queue Full */
-	case 0x30: ccp = "ACA Active"; break;
-	case 0x40: ccp = "Task Aborted"; break;
-	default:   ccp = "Unknown status";
-	}
-	printk(KERN_INFO "%s", ccp);
-#else
-	printk(KERN_INFO "0x%0x", scsi_status);
-#endif
-}
-EXPORT_SYMBOL(scsi_print_status);
-
 #ifdef CONFIG_SCSI_CONSTANTS
 
 struct error_info {
include/scsi/scsi_dbg.h +0 -1
index cd0c873..44bea15 100644
@@ -19,7 +19,6 @@ extern void __scsi_print_sense(struct scsi_device *, const char *name,
 			       int sense_len);
 extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
-extern void scsi_print_status(unsigned char);
 extern const char *scsi_sense_key_string(unsigned char);
 extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
 					  const char **);
Signature · 1 line
1.8.5.2
#18 lore raw

PATCH v2 10/20 Implement scsi_opcode_sa_name

In reply to Hannes Reinecke

Implement a lookup array for SERVICE ACTION commands instead of hardcoding it in a large switch statement.

---
 drivers/scsi/constants.c | 132 +++++++++++++++++++----------------------------
 1 file changed, 54 insertions(+), 78 deletions(-)
drivers/scsi/constants.c +54 -78
index d3915d8..364349c 100644
@@ -244,102 +244,77 @@ static const struct value_name_pair variable_length_arr[] = {
 };
 #define VARIABLE_LENGTH_SZ ARRAY_SIZE(variable_length_arr)
 
-static const char * get_sa_name(const struct value_name_pair * arr,
-			        int arr_sz, int service_action)
+struct sa_name_list {
+	int cmd;
+	const struct value_name_pair *arr;
+	int arr_sz;
+};
+
+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},
+};
+#define SA_NAME_LIST_SZ ARRAY_SIZE(sa_names_arr)
+
+static bool scsi_opcode_sa_name(int cmd, int service_action,
+				const char **sa_name)
 {
-	int k;
+	struct sa_name_list *sa_name_ptr = sa_names_arr;
+	const struct value_name_pair * arr = NULL;
+	int arr_sz, k;
+
+	for (k = 0; k < SA_NAME_LIST_SZ; ++k, ++sa_name_ptr) {
+		if (sa_name_ptr->cmd == cmd) {
+			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;
 	}
-	return (k < arr_sz) ? arr->name : NULL;
+	if (k < arr_sz)
+		*sa_name = arr->name;
+
+	return true;
 }
 
 /* attempt to guess cdb length if cdb_len==0 . No trailing linefeed. */
 static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 {
 	int sa, len, cdb0;
-	int fin_name = 0;
-	const char * name;
+	const char * name = NULL;
 
 	cdb0 = cdbp[0];
-	switch(cdb0) {
-	case VARIABLE_LENGTH_CMD:
+	if (cdb0 == VARIABLE_LENGTH_CMD) {
 		len = scsi_varlen_cdb_length(cdbp);
 		if (len < 10) {
 			printk("short variable length command, "
 			       "len=%d ext_len=%d", len, cdb_len);
-			break;
+			return;
 		}
 		sa = (cdbp[8] << 8) + cdbp[9];
-		name = get_sa_name(variable_length_arr, VARIABLE_LENGTH_SZ,
-				   sa);
-		if (name)
-			printk("%s", name);
-		else
-			printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
-
-		if ((cdb_len > 0) && (len != cdb_len))
-			printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len);
-
-		break;
-	case MAINTENANCE_IN:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(maint_in_arr, MAINT_IN_SZ, sa);
-		fin_name = 1;
-		break;
-	case MAINTENANCE_OUT:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(maint_out_arr, MAINT_OUT_SZ, sa);
-		fin_name = 1;
-		break;
-	case PERSISTENT_RESERVE_IN:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(pr_in_arr, PR_IN_SZ, sa);
-		fin_name = 1;
-		break;
-	case PERSISTENT_RESERVE_OUT:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(pr_out_arr, PR_OUT_SZ, sa);
-		fin_name = 1;
-		break;
-	case SERVICE_ACTION_IN_12:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(serv_in12_arr, SERV_IN12_SZ, sa);
-		fin_name = 1;
-		break;
-	case SERVICE_ACTION_OUT_12:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(serv_out12_arr, SERV_OUT12_SZ, sa);
-		fin_name = 1;
-		break;
-	case SERVICE_ACTION_BIDIRECTIONAL:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(serv_bidi_arr, SERV_BIDI_SZ, sa);
-		fin_name = 1;
-		break;
-	case SERVICE_ACTION_IN_16:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(serv_in16_arr, SERV_IN16_SZ, sa);
-		fin_name = 1;
-		break;
-	case SERVICE_ACTION_OUT_16:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(serv_out16_arr, SERV_OUT16_SZ, sa);
-		fin_name = 1;
-		break;
-	case THIRD_PARTY_COPY_IN:
-		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(tpc_in_arr, TPC_IN_SZ, sa);
-		fin_name = 1;
-		break;
-	case THIRD_PARTY_COPY_OUT:
+	} else {
 		sa = cdbp[1] & 0x1f;
-		name = get_sa_name(tpc_out_arr, TPC_OUT_SZ, sa);
-		fin_name = 1;
-		break;
-	default:
+		len = cdb_len;
+	}
+
+	if (!scsi_opcode_sa_name(cdb0, sa, &name)) {
 		if (cdb0 < 0xc0) {
 			name = cdb_byte0_names[cdb0];
 			if (name)
@@ -348,13 +323,14 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 				printk("cdb[0]=0x%x (reserved)", cdb0);
 		} else
 			printk("cdb[0]=0x%x (vendor)", cdb0);
-		break;
-	}
-	if (fin_name) {
+	} else {
 		if (name)
 			printk("%s", name);
 		else
 			printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
+
+		if (cdb_len > 0 && len != cdb_len)
+			printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len);
 	}
 }
 
Signature · 1 line
1.8.5.2
#19 lore raw

PATCH v2 11/20 scsi: Use scsi_print_command() where possible

In reply to Hannes Reinecke

Some drivers use __scsi_print_command() although in fact they refer to the scsi command. So move them over to use scsi_print_command() instead.

---
 drivers/scsi/aha152x.c       |  6 ++----
 drivers/scsi/arm/acornscsi.c |  9 +++++----
 drivers/scsi/arm/fas216.c    | 30 +++++++++++++-----------------
 3 files changed, 20 insertions(+), 25 deletions(-)
drivers/scsi/aha152x.c +2 -4
index 447568a..bc923d1 100644
@@ -2443,11 +2443,9 @@ static void disp_enintr(struct Scsi_Host *shpnt)
  */
 static void show_command(Scsi_Cmnd *ptr)
 {
-	scmd_printk(KERN_DEBUG, ptr, "%p: cmnd=(", ptr);
+	scsi_print_command(ptr);
 
-	__scsi_print_command(ptr->cmnd);
-
-	printk(KERN_DEBUG "); request_bufflen=%d; resid=%d; phase |",
+	scmd_printk(KERN_DEBUG, ptr, "request_bufflen=%d; resid=%d; phase |",
 	       scsi_bufflen(ptr), scsi_get_resid(ptr));
 
 	if (ptr->SCp.phase & not_issued)
drivers/scsi/arm/acornscsi.c +5 -4
index d89b9b4..78dd881 100644
@@ -850,11 +850,12 @@ static void acornscsi_done(AS_Host *host, struct scsi_cmnd **SCpntp,
 			break;
 
 		    default:
-			printk(KERN_ERR "scsi%d.H: incomplete data transfer detected: result=%08X command=",
-				host->host->host_no, SCpnt->result);
-			__scsi_print_command(SCpnt->cmnd);
+			scmd_printk(KERN_ERR, SCPnt,
+				    "incomplete data transfer detected:"
+				    " result=%08X\n", SCpnt->result);
+			scsi_print_command(SCpnt);
 			acornscsi_dumpdma(host, "done");
-		 	acornscsi_dumplog(host, SCpnt->device->id);
+			acornscsi_dumplog(host, SCpnt->device->id);
 			SCpnt->result &= 0xffff;
 			SCpnt->result |= DID_ERROR << 16;
 		    }
drivers/scsi/arm/fas216.c +13 -17
index 71cfb1e..778fd36 100644
@@ -308,8 +308,7 @@ static void fas216_log_command(FAS216_Info *info, int level,
 	fas216_do_log(info, '0' + SCpnt->device->id, fmt, args);
 	va_end(args);
 
-	printk(" CDB: ");
-	__scsi_print_command(SCpnt->cmnd);
+	scsi_print_command(SCpnt);
 }
 
 static void
@@ -2079,12 +2078,12 @@ fas216_std_done(FAS216_Info *info, struct scsi_cmnd *SCpnt, unsigned int result)
 			break;
 
 		default:
-			printk(KERN_ERR "scsi%d.%c: incomplete data transfer "
-				"detected: res=%08X ptr=%p len=%X CDB: ",
-				info->host->host_no, '0' + SCpnt->device->id,
-				SCpnt->result, info->scsi.SCp.ptr,
-				info->scsi.SCp.this_residual);
-			__scsi_print_command(SCpnt->cmnd);
+			scmd_printk(KERN_ERR, SCpnt,
+				    "incomplete data transfer "
+				    "detected: res=%08X ptr=%p len=%X\n",
+				    SCpnt->result, info->scsi.SCp.ptr,
+				    info->scsi.SCp.this_residual);
+			scsi_print_command(SCpnt->cmnd);
 			SCpnt->result &= ~(255 << 16);
 			SCpnt->result |= DID_BAD_TARGET << 16;
 			goto request_sense;
@@ -2158,12 +2157,11 @@ static void fas216_done(FAS216_Info *info, unsigned int result)
 	 * to transfer, we should not have a valid pointer.
 	 */
 	if (info->scsi.SCp.ptr && info->scsi.SCp.this_residual == 0) {
-		printk("scsi%d.%c: zero bytes left to transfer, but "
-		       "buffer pointer still valid: ptr=%p len=%08x CDB: ",
-		       info->host->host_no, '0' + SCpnt->device->id,
-		       info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
+		scmd_printk(KERN_INFO, SCpnt, "zero bytes left to transfer, "
+			    "but buffer pointer still valid: ptr=%p len=%08x\n",
+			    info->scsi.SCp.ptr, info->scsi.SCp.this_residual);
 		info->scsi.SCp.ptr = NULL;
-		__scsi_print_command(SCpnt->cmnd);
+		scsi_print_command(SCpnt);
 	}
 
 	/*
@@ -2427,14 +2425,12 @@ int fas216_eh_abort(struct scsi_cmnd *SCpnt)
 
 	info->stats.aborts += 1;
 
-	printk(KERN_WARNING "scsi%d: abort command ", info->host->host_no);
-	__scsi_print_command(SCpnt->cmnd);
+	scmd_printk(KERN_WARNING, SCpnt, "abort command %p\n", SCpnt);
+	scsi_print_command(SCpnt);
 
 	print_debug_list();
 	fas216_dumpstate(info);
 
-	printk(KERN_WARNING "scsi%d: abort %p ", info->host->host_no, SCpnt);
-
 	switch (fas216_find_command(info, SCpnt)) {
 	/*
 	 * We found the command, and cleared it out.  Either
Signature · 1 line
1.8.5.2
#21 lore raw

PATCH v2 12/20 scsi: merge print_opcode_name()

In reply to Hannes Reinecke

Instead of having two versions of print_opcode_name() we should be consolidating them into one version.

---
 drivers/scsi/constants.c | 90 +++++++++++++++++++-----------------------------
 1 file changed, 35 insertions(+), 55 deletions(-)
drivers/scsi/constants.c +35 -55
index 364349c..3aee43b 100644
@@ -30,6 +30,11 @@
 #define THIRD_PARTY_COPY_IN 0x84
 
 
+struct sa_name_list {
+	int cmd;
+	const struct value_name_pair *arr;
+	int arr_sz;
+};
 
 #ifdef CONFIG_SCSI_CONSTANTS
 static const char * cdb_byte0_names[] = {
@@ -244,12 +249,6 @@ static const struct value_name_pair variable_length_arr[] = {
 };
 #define VARIABLE_LENGTH_SZ ARRAY_SIZE(variable_length_arr)
 
-struct sa_name_list {
-	int cmd;
-	const struct value_name_pair *arr;
-	int arr_sz;
-};
-
 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},
@@ -267,6 +266,28 @@ static struct sa_name_list sa_names_arr[] = {
 };
 #define SA_NAME_LIST_SZ ARRAY_SIZE(sa_names_arr)
 
+#else /* ifndef CONFIG_SCSI_CONSTANTS */
+static const char * cdb_byte0_names[] = NULL;
+
+static struct sa_name_list sa_names_arr[] = {
+	{VARIABLE_LENGTH_CMD, NULL, 0},
+	{MAINTENANCE_IN, NULL, 0},
+	{MAINTENANCE_OUT, NULL, 0},
+	{PERSISTENT_RESERVE_IN, NULL, 0},
+	{PERSISTENT_RESERVE_OUT, NULL, 0},
+	{SERVICE_ACTION_IN_12, NULL, 0},
+	{SERVICE_ACTION_OUT_12, NULL, 0},
+	{SERVICE_ACTION_BIDIRECTIONAL, NULL, 0},
+	{SERVICE_ACTION_IN_16, NULL, 0},
+	{SERVICE_ACTION_OUT_16, NULL, 0},
+	{THIRD_PARTY_COPY_IN, NULL, 0},
+	{THIRD_PARTY_COPY_OUT, NULL, 0},
+	{0, NULL, 0},
+};
+#endif /* CONFIG_SCSI_CONSTANTS */
+#define SA_NAME_LIST_SZ ARRAY_SIZE(sa_names_arr)
+#define CDB_BYTE0_NAMES_SZ ARRAY_SIZE(cdb_byte0_names)
+
 static bool scsi_opcode_sa_name(int cmd, int service_action,
 				const char **sa_name)
 {
@@ -316,11 +337,14 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 
 	if (!scsi_opcode_sa_name(cdb0, sa, &name)) {
 		if (cdb0 < 0xc0) {
-			name = cdb_byte0_names[cdb0];
-			if (name)
-				printk("%s", name);
-			else
-				printk("cdb[0]=0x%x (reserved)", cdb0);
+			if (CDB_BYTE0_NAMES_SZ) {
+				name = cdb_byte0_names[cdb0];
+				if (name)
+					printk("%s", name);
+				else
+					printk("cdb[0]=0x%x (reserved)", cdb0);
+			} else
+				printk("cdb[0]=0x%x", cdb0);
 		} else
 			printk("cdb[0]=0x%x (vendor)", cdb0);
 	} else {
@@ -334,50 +358,6 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 	}
 }
 
-#else /* ifndef CONFIG_SCSI_CONSTANTS */
-
-static void print_opcode_name(unsigned char * cdbp, int cdb_len)
-{
-	int sa, len, cdb0;
-
-	cdb0 = cdbp[0];
-	switch(cdb0) {
-	case VARIABLE_LENGTH_CMD:
-		len = scsi_varlen_cdb_length(cdbp);
-		if (len < 10) {
-			printk("short opcode=0x%x command, len=%d "
-			       "ext_len=%d", cdb0, len, cdb_len);
-			break;
-		}
-		sa = (cdbp[8] << 8) + cdbp[9];
-		printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
-		if (len != cdb_len)
-			printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len);
-		break;
-	case MAINTENANCE_IN:
-	case MAINTENANCE_OUT:
-	case PERSISTENT_RESERVE_IN:
-	case PERSISTENT_RESERVE_OUT:
-	case SERVICE_ACTION_IN_12:
-	case SERVICE_ACTION_OUT_12:
-	case SERVICE_ACTION_BIDIRECTIONAL:
-	case SERVICE_ACTION_IN_16:
-	case SERVICE_ACTION_OUT_16:
-	case THIRD_PARTY_COPY_IN:
-	case THIRD_PARTY_COPY_OUT:
-		sa = cdbp[1] & 0x1f;
-		printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
-		break;
-	default:
-		if (cdb0 < 0xc0)
-			printk("cdb[0]=0x%x", cdb0);
-		else
-			printk("cdb[0]=0x%x (vendor)", cdb0);
-		break;
-	}
-}
-#endif
-
 void __scsi_print_command(unsigned char *cdb)
 {
 	int k, len;
Signature · 1 line
1.8.5.2
#22 lore raw

Re: [PATCH 12/20] scsi: merge print_opcode_name()

Quoted 38 lines · Hannes Reinecke

Instead of having two versions of print_opcode_name() we should be consolidating them into one version.

---
  drivers/scsi/constants.c | 90 +++++++++++++++++++-----------------------------
  1 file changed, 35 insertions(+), 55 deletions(-)
drivers/scsi/constants.c +5 -6
index 364349c..3aee43b 100644
@@ -30,6 +30,11 @@
  #define THIRD_PARTY_COPY_IN 0x84
 
 
+struct sa_name_list {
+	int cmd;
+	const struct value_name_pair *arr;
+	int arr_sz;
+};
 
  #ifdef CONFIG_SCSI_CONSTANTS
  static const char * cdb_byte0_names[] = {
@@ -244,12 +249,6 @@ static const struct value_name_pair variable_length_arr[] = {
  };
  #define VARIABLE_LENGTH_SZ ARRAY_SIZE(variable_length_arr)
 
-struct sa_name_list {
-	int cmd;
-	const struct value_name_pair *arr;
-	int arr_sz;
-};
-
  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},

drivers/scsi/constants.c static struct sa_name_list sa_names_arr[] = { · line 267

Quoted 2 lines
drivers/scsi/constants.c +0 -0
@@ -267,6 +266,28 @@ static struct sa_name_list sa_names_arr[] = {
  };
  #define SA_NAME_LIST_SZ ARRAY_SIZE(sa_names_arr)

We can delete SA_NAME_LIST_SZ because we define it out of CONFIG_SCSI_CONSTANTS.

The others look good.

Thanks,
Yoshihiro YUNOMAE

Quoted 97 lines
drivers/scsi/constants.c +30 -49
+#else /* ifndef CONFIG_SCSI_CONSTANTS */
+static const char * cdb_byte0_names[] = NULL;
+
+static struct sa_name_list sa_names_arr[] = {
+	{VARIABLE_LENGTH_CMD, NULL, 0},
+	{MAINTENANCE_IN, NULL, 0},
+	{MAINTENANCE_OUT, NULL, 0},
+	{PERSISTENT_RESERVE_IN, NULL, 0},
+	{PERSISTENT_RESERVE_OUT, NULL, 0},
+	{SERVICE_ACTION_IN_12, NULL, 0},
+	{SERVICE_ACTION_OUT_12, NULL, 0},
+	{SERVICE_ACTION_BIDIRECTIONAL, NULL, 0},
+	{SERVICE_ACTION_IN_16, NULL, 0},
+	{SERVICE_ACTION_OUT_16, NULL, 0},
+	{THIRD_PARTY_COPY_IN, NULL, 0},
+	{THIRD_PARTY_COPY_OUT, NULL, 0},
+	{0, NULL, 0},
+};
+#endif /* CONFIG_SCSI_CONSTANTS */
+#define SA_NAME_LIST_SZ ARRAY_SIZE(sa_names_arr)
+#define CDB_BYTE0_NAMES_SZ ARRAY_SIZE(cdb_byte0_names)
+
  static bool scsi_opcode_sa_name(int cmd, int service_action,
  				const char **sa_name)
  {
@@ -316,11 +337,14 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 
  	if (!scsi_opcode_sa_name(cdb0, sa, &name)) {
  		if (cdb0 < 0xc0) {
-			name = cdb_byte0_names[cdb0];
-			if (name)
-				printk("%s", name);
-			else
-				printk("cdb[0]=0x%x (reserved)", cdb0);
+			if (CDB_BYTE0_NAMES_SZ) {
+				name = cdb_byte0_names[cdb0];
+				if (name)
+					printk("%s", name);
+				else
+					printk("cdb[0]=0x%x (reserved)", cdb0);
+			} else
+				printk("cdb[0]=0x%x", cdb0);
  		} else
  			printk("cdb[0]=0x%x (vendor)", cdb0);
  	} else {
@@ -334,50 +358,6 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
  	}
  }
 
-#else /* ifndef CONFIG_SCSI_CONSTANTS */
-
-static void print_opcode_name(unsigned char * cdbp, int cdb_len)
-{
-	int sa, len, cdb0;
-
-	cdb0 = cdbp[0];
-	switch(cdb0) {
-	case VARIABLE_LENGTH_CMD:
-		len = scsi_varlen_cdb_length(cdbp);
-		if (len < 10) {
-			printk("short opcode=0x%x command, len=%d "
-			       "ext_len=%d", cdb0, len, cdb_len);
-			break;
-		}
-		sa = (cdbp[8] << 8) + cdbp[9];
-		printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
-		if (len != cdb_len)
-			printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len);
-		break;
-	case MAINTENANCE_IN:
-	case MAINTENANCE_OUT:
-	case PERSISTENT_RESERVE_IN:
-	case PERSISTENT_RESERVE_OUT:
-	case SERVICE_ACTION_IN_12:
-	case SERVICE_ACTION_OUT_12:
-	case SERVICE_ACTION_BIDIRECTIONAL:
-	case SERVICE_ACTION_IN_16:
-	case SERVICE_ACTION_OUT_16:
-	case THIRD_PARTY_COPY_IN:
-	case THIRD_PARTY_COPY_OUT:
-		sa = cdbp[1] & 0x1f;
-		printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
-		break;
-	default:
-		if (cdb0 < 0xc0)
-			printk("cdb[0]=0x%x", cdb0);
-		else
-			printk("cdb[0]=0x%x (vendor)", cdb0);
-		break;
-	}
-}
-#endif
-
  void __scsi_print_command(unsigned char *cdb)
  {
  	int k, len;
Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
Reviewed-by
#23 lore raw

Re: [PATCH 12/20] scsi: merge print_opcode_name()

Quoted 4 lines · Yoshihiro YUNOMAE
Quoted 1 line
  #define SA_NAME_LIST_SZ ARRAY_SIZE(sa_names_arr)

We can delete SA_NAME_LIST_SZ because we define it out of CONFIG_SCSI_CONSTANTS.

I'd generally prefer to just use ARRAY_SIZE() directly instead of adding another layer of indirection.

Otherwise looks good,

#24 lore raw

PATCH v2 13/20 scsi: consolidate opcode lookup in scsi_opcode_sa_name()

In reply to Hannes Reinecke

Consolidate the CDB opcode lookup in scsi_opcode_sa_name(), so that we don't have to call several functions to figure out the CDB opcode string.

---
 drivers/scsi/constants.c | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)
drivers/scsi/constants.c +21 -15
index 3aee43b..6076969 100644
@@ -289,12 +289,19 @@ static struct sa_name_list sa_names_arr[] = {
 #define CDB_BYTE0_NAMES_SZ ARRAY_SIZE(cdb_byte0_names)
 
 static bool scsi_opcode_sa_name(int cmd, int service_action,
-				const char **sa_name)
+				const char **cdb_name, const char **sa_name)
 {
 	struct sa_name_list *sa_name_ptr = sa_names_arr;
 	const struct value_name_pair * arr = NULL;
 	int arr_sz, k;
 
+	*cdb_name = NULL;
+	if (cmd >= 0xc0)
+		return false;
+
+	if (cmd < CDB_BYTE0_NAMES_SZ)
+		*cdb_name = cdb_byte0_names[cmd];
+
 	for (k = 0; k < SA_NAME_LIST_SZ; ++k, ++sa_name_ptr) {
 		if (sa_name_ptr->cmd == cmd) {
 			arr = sa_name_ptr->arr;
@@ -319,7 +326,7 @@ static bool scsi_opcode_sa_name(int cmd, int service_action,
 static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 {
 	int sa, len, cdb0;
-	const char * name = NULL;
+	const char *cdb_name = NULL, *sa_name = NULL;
 
 	cdb0 = cdbp[0];
 	if (cdb0 == VARIABLE_LENGTH_CMD) {
@@ -335,21 +342,20 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 		len = cdb_len;
 	}
 
-	if (!scsi_opcode_sa_name(cdb0, sa, &name)) {
-		if (cdb0 < 0xc0) {
-			if (CDB_BYTE0_NAMES_SZ) {
-				name = cdb_byte0_names[cdb0];
-				if (name)
-					printk("%s", name);
-				else
-					printk("cdb[0]=0x%x (reserved)", cdb0);
-			} else
-				printk("cdb[0]=0x%x", cdb0);
-		} else
+	if (!scsi_opcode_sa_name(cdb0, sa, &cdb_name, &sa_name)) {
+		if (cdb_name)
+			printk("%s", cdb_name);
+		else if (cdb0 > 0xc0)
 			printk("cdb[0]=0x%x (vendor)", cdb0);
+		else if (cdb0 > 0x60 && cdb0 < 0x7e)
+			printk("cdb[0]=0x%x (reserved)", cdb0);
+		else
+			printk("cdb[0]=0x%x", cdb0);
 	} else {
-		if (name)
-			printk("%s", name);
+		if (sa_name)
+			printk("%s", sa_name);
+		else if (cdb_name)
+			printk("%s, sa=0x%x", cdb_name, sa);
 		else
 			printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
 
Signature · 1 line
1.8.5.2
Reviewed-by on v2 13/20
#25 lore raw

Re: [PATCH 13/20] scsi: consolidate opcode lookup in scsi_opcode_sa_name()

drivers/scsi/constants.c static struct sa_name_list sa_names_arr[] = { · line 299

Quoted 2 lines
drivers/scsi/constants.c +2 -0
+	*cdb_name = NULL;
+	if (cmd >= 0xc0)

Can we get a START_VENDOR_SPECIFIC_CMD or similar define for 0xc0, please?

Otherwise looks good to me,

#26 lore raw

PATCH v2 14/20 scsi: use local buffer for printing CDB

In reply to Hannes Reinecke

The CDB needs to be printed in one line (ie with one printk statement) to avoid the individual bytes to be broken up under high load.
As using individual printk() statements here would lead to unnecessary complicated code and needs the stack space to hold the format string we should be using a local buffer here. If the CDB is longer than the provided buffer it will be printed in several lines.

---
 drivers/scsi/ch.c        |  5 +--
 drivers/scsi/constants.c | 82 ++++++++++++++++++++++++++++++++----------------
 drivers/scsi/sr_ioctl.c  |  9 ++++--
 include/scsi/scsi_dbg.h  |  2 +-
 4 files changed, 65 insertions(+), 33 deletions(-)
drivers/scsi/ch.c +3 -2
index eea94a9..f0df02e 100644
@@ -189,6 +189,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
 {
 	int errno, retries = 0, timeout, result;
 	struct scsi_sense_hdr sshdr;
+	char buf[80];
 
 	timeout = (cmd[0] == INITIALIZE_ELEMENT_STATUS)
 		? timeout_init : timeout_move;
@@ -196,8 +197,8 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
  retry:
 	errno = 0;
 	if (debug) {
-		DPRINTK("command: ");
-		__scsi_print_command(cmd);
+		__scsi_print_command(cmd, buf, 80);
+		DPRINTK("command: %s", buf);
 	}
 
 	result = scsi_execute_req(ch->device, cmd, direction, buffer,
drivers/scsi/constants.c +55 -27

128 lines not on this page · raw message

drivers/scsi/sr_ioctl.c +6 -3
index 17e0c2b..8090571 100644
@@ -188,6 +188,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
 	struct scsi_sense_hdr sshdr;
 	int result, err = 0, retries = 0;
 	struct request_sense *sense = cgc->sense;
+	char buf[80];
 
 	SDev = cd->device;
 
@@ -257,14 +258,16 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
 				/* sense: Invalid command operation code */
 				err = -EDRIVE_CANT_DO_THIS;
 #ifdef DEBUG
-			__scsi_print_command(cgc->cmd);
+			__scsi_print_command(cgc->cmd, buf, 80);
+			sr_printk(KERN_ERR, cd,
+				  "CDROM (ioctl) invalid command %s\n", buf);
 			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
 #endif
 			break;
 		default:
+		    __scsi_print_command(cgc->cmd, buf, 80);
 			sr_printk(KERN_ERR, cd,
-				  "CDROM (ioctl) error, command: ");
-			__scsi_print_command(cgc->cmd);
+				  "CDROM (ioctl) error, command: %s\n", buf);
 			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
 			err = -EIO;
 		}
include/scsi/scsi_dbg.h +1 -1
index 44bea15..5020e5e 100644
@@ -6,7 +6,7 @@ struct scsi_device;
 struct scsi_sense_hdr;
 
 extern void scsi_print_command(struct scsi_cmnd *);
-extern void __scsi_print_command(unsigned char *);
+extern void __scsi_print_command(unsigned char *, char *, int);
 extern void scsi_show_extd_sense(struct scsi_device *, const char *,
 				 unsigned char, unsigned char);
 extern void scsi_show_sense_hdr(struct scsi_device *, const char *,
Signature · 1 line
1.8.5.2
#27 lore raw

Re: [PATCH 14/20] scsi: use local buffer for printing CDB

Quoted 22 lines · Hannes Reinecke

The CDB needs to be printed in one line (ie with one printk statement) to avoid the individual bytes to be broken up under high load.
As using individual printk() statements here would lead to unnecessary complicated code and needs the stack space to hold the format string we should be using a local buffer here. If the CDB is longer than the provided buffer it will be printed in several lines.

---
  drivers/scsi/ch.c        |  5 +--
  drivers/scsi/constants.c | 82 ++++++++++++++++++++++++++++++++----------------
  drivers/scsi/sr_ioctl.c  |  9 ++++--
  include/scsi/scsi_dbg.h  |  2 +-
  4 files changed, 65 insertions(+), 33 deletions(-)
drivers/scsi/ch.c +0 -0
index eea94a9..f0df02e 100644

drivers/scsi/ch.c ch_do_scsi(scsi_changer *ch, unsigned char *cmd, · line 192

Quoted 4 lines
drivers/scsi/ch.c +1 -0
@@ -189,6 +189,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
  {
  	int errno, retries = 0, timeout, result;
  	struct scsi_sense_hdr sshdr;
+	char buf[80];

This patch introduces some magic numbers like here, but we had better define those.

Thanks,
Yoshihiro YUNOMAE

Quoted 193 lines
drivers/scsi/ch.c +2 -2
  	timeout = (cmd[0] == INITIALIZE_ELEMENT_STATUS)
  		? timeout_init : timeout_move;
@@ -196,8 +197,8 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
   retry:
  	errno = 0;
  	if (debug) {
-		DPRINTK("command: ");
-		__scsi_print_command(cmd);
+		__scsi_print_command(cmd, buf, 80);
+		DPRINTK("command: %s", buf);
  	}
 
  	result = scsi_execute_req(ch->device, cmd, direction, buffer,
drivers/scsi/constants.c +55 -27
index 6076969..5486816 100644
@@ -322,19 +322,20 @@ static bool scsi_opcode_sa_name(int cmd, int service_action,
  	return true;
  }
 
-/* attempt to guess cdb length if cdb_len==0 . No trailing linefeed. */
-static void print_opcode_name(unsigned char * cdbp, int cdb_len)
+/* attempt to guess cdb length if cdb_len==0 */
+static int print_opcode_name(unsigned char * cdbp, int cdb_len,
+			     char *buf, int buf_len)
  {
-	int sa, len, cdb0;
+	int sa, len, cdb0, off = 0;
  	const char *cdb_name = NULL, *sa_name = NULL;
 
  	cdb0 = cdbp[0];
  	if (cdb0 == VARIABLE_LENGTH_CMD) {
  		len = scsi_varlen_cdb_length(cdbp);
  		if (len < 10) {
-			printk("short variable length command, "
-			       "len=%d ext_len=%d", len, cdb_len);
-			return;
+			return scnprintf(buf, buf_len,
+					 "short variable length command, "
+					 "len=%d ext_len=%d", len, cdb_len);
  		}
  		sa = (cdbp[8] << 8) + cdbp[9];
  	} else {
@@ -344,54 +345,81 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len)
 
  	if (!scsi_opcode_sa_name(cdb0, sa, &cdb_name, &sa_name)) {
  		if (cdb_name)
-			printk("%s", cdb_name);
+			off = scnprintf(buf, buf_len, "%s", cdb_name);
  		else if (cdb0 > 0xc0)
-			printk("cdb[0]=0x%x (vendor)", cdb0);
+			off = scnprintf(buf, buf_len,
+					 "cdb[0]=0x%x (vendor)", cdb0);
  		else if (cdb0 > 0x60 && cdb0 < 0x7e)
-			printk("cdb[0]=0x%x (reserved)", cdb0);
+			off = scnprintf(buf, buf_len,
+					 "cdb[0]=0x%x (reserved)", cdb0);
  		else
-			printk("cdb[0]=0x%x", cdb0);
+			off = scnprintf(buf, buf_len, "cdb[0]=0x%x", cdb0);
  	} else {
  		if (sa_name)
-			printk("%s", sa_name);
+			off = scnprintf(buf, buf_len, "%s", sa_name);
  		else if (cdb_name)
-			printk("%s, sa=0x%x", cdb_name, sa);
+			off = scnprintf(buf, buf_len,
+					"%s, sa=0x%x", cdb_name, sa);
  		else
-			printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa);
+			off = scnprintf(buf, buf_len,
+					"cdb[0]=0x%x, sa=0x%x", cdb0, sa);
 
  		if (cdb_len > 0 && len != cdb_len)
-			printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len);
+			off += scnprintf(buf + off, buf_len - off,
+					 ", in_cdb_len=%d, ext_len=%d",
+					 len, cdb_len);
  	}
+	return off;
  }
 
-void __scsi_print_command(unsigned char *cdb)
+void __scsi_print_command(unsigned char *cdb, char *buf, int buf_len)
  {
-	int k, len;
+	int len, off;
 
-	print_opcode_name(cdb, 0);
+	off = print_opcode_name(cdb, 0, buf, buf_len);
  	len = scsi_command_size(cdb);
+	/* Variable length CDBs are not supported */
+	if (len > 16)
+		return;
  	/* print out all bytes in cdb */
-	for (k = 0; k < len; ++k)
-		printk(" %02x", cdb[k]);
-	printk("\n");
+	hex_dump_to_buffer(cdb, len, 16, 1,
+			   buf, buf_len - off, false);
  }
  EXPORT_SYMBOL(__scsi_print_command);
 
  void scsi_print_command(struct scsi_cmnd *cmd)
  {
-	int k;
+	int k, off = 0;
+	/* 16 bytes + space take up 48 bytes */
+	char buf[48];
+	int buf_len = 48, linelen;
 
  	if (cmd->cmnd == NULL)
  		return;
 
-	scmd_printk(KERN_INFO, cmd, "CDB: ");
-	print_opcode_name(cmd->cmnd, cmd->cmd_len);
+	off = print_opcode_name(cmd->cmnd, cmd->cmd_len, buf, buf_len);
 
  	/* print out all bytes in cdb */
-	printk(":");
-	for (k = 0; k < cmd->cmd_len; ++k)
-		printk(" %02x", cmd->cmnd[k]);
-	printk("\n");
+	if (buf_len - off > cmd->cmd_len * 3 + 2) {
+		/* If we have enough space print CDB in one line */
+		off += scnprintf(buf + off, buf_len - off, ": ");
+		hex_dump_to_buffer(cmd->cmnd, cmd->cmd_len, 16, 1,
+				   buf, buf_len - off, false);
+		scmd_printk(KERN_INFO, cmd, "CDB: %s\n", buf);
+	} else {
+		/*
+		 * Otherwise print opcode in one line and use
+		 * separate lines for the CDB
+		 */
+		scmd_printk(KERN_INFO, cmd, "CDB: %s\n", buf);
+		for (k = 0; k < cmd->cmd_len; k += 16) {
+			linelen = min(cmd->cmd_len - k, 16);
+			hex_dump_to_buffer(cmd->cmnd, linelen, 16, 1,
+					   buf, sizeof(buf), false);
+			scmd_printk(KERN_INFO, cmd, "CDB[%0x2]: %s\n",
+				    k / 16, buf);
+		}
+	}
  }
  EXPORT_SYMBOL(scsi_print_command);
 
drivers/scsi/sr_ioctl.c +6 -3
index 17e0c2b..8090571 100644
@@ -188,6 +188,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
  	struct scsi_sense_hdr sshdr;
  	int result, err = 0, retries = 0;
  	struct request_sense *sense = cgc->sense;
+	char buf[80];
 
  	SDev = cd->device;
 
@@ -257,14 +258,16 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
  				/* sense: Invalid command operation code */
  				err = -EDRIVE_CANT_DO_THIS;
  #ifdef DEBUG
-			__scsi_print_command(cgc->cmd);
+			__scsi_print_command(cgc->cmd, buf, 80);
+			sr_printk(KERN_ERR, cd,
+				  "CDROM (ioctl) invalid command %s\n", buf);
  			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
  #endif
  			break;
  		default:
+		    __scsi_print_command(cgc->cmd, buf, 80);
  			sr_printk(KERN_ERR, cd,
-				  "CDROM (ioctl) error, command: ");
-			__scsi_print_command(cgc->cmd);
+				  "CDROM (ioctl) error, command: %s\n", buf);
  			scsi_print_sense_hdr(cd->device, cd->cdi.name, &sshdr);
  			err = -EIO;
  		}
include/scsi/scsi_dbg.h +1 -1
index 44bea15..5020e5e 100644
@@ -6,7 +6,7 @@ struct scsi_device;
  struct scsi_sense_hdr;
 
  extern void scsi_print_command(struct scsi_cmnd *);
-extern void __scsi_print_command(unsigned char *);
+extern void __scsi_print_command(unsigned char *, char *, int);
  extern void scsi_show_extd_sense(struct scsi_device *, const char *,
  				 unsigned char, unsigned char);
  extern void scsi_show_sense_hdr(struct scsi_device *, const char *,
Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
#28 lore raw

Re: [PATCH 14/20] scsi: use local buffer for printing CDB

In reply to Hannes Reinecke
Quoted 8 lines · Hannes Reinecke

The CDB needs to be printed in one line (ie with one printk statement) to avoid the individual bytes to be broken up under high load.
As using individual printk() statements here would lead to unnecessary complicated code and needs the stack space to hold the format string we should be using a local buffer here. If the CDB is longer than the provided buffer it will be printed in several lines.

Some general comments:

- as pointed out by YUNOMAE-san we need a constant for the buffer. And I'd also like to see a comment why exactly you're chosing 80 for it.
- I'd really like to see some worst case stack usage analysis of the old vs the new case.

Quoted 9 lines
drivers/scsi/ch.c +1 -0
@@ -189,6 +189,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
 {
 	int errno, retries = 0, timeout, result;
 	struct scsi_sense_hdr sshdr;
+	char buf[80];
 
 	timeout = (cmd[0] == INITIALIZE_ELEMENT_STATUS)
 		? timeout_init : timeout_move;

drivers/scsi/ch.c ch_do_scsi(scsi_changer *ch, unsigned char *cmd, · line 201

Quoted 7 lines
drivers/scsi/ch.c +2 -2
@@ -196,8 +197,8 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
  retry:
 	errno = 0;
 	if (debug) {
-		DPRINTK("command: ");
-		__scsi_print_command(cmd);
+		__scsi_print_command(cmd, buf, 80);
+		DPRINTK("command: %s", buf);

The buffer variable should be inside the "if (debug)" here.

drivers/scsi/constants.c static bool scsi_opcode_sa_name(int cmd, int service_action, · line 325

Quoted 1 line
drivers/scsi/constants.c +1 -0
+/* attempt to guess cdb length if cdb_len==0 */

cdb_len == 0 is only passed in from __scsi_print_command. But as far as I can tell all of it's caller have it easily available, so we should just pass it in and get rid of this special case.

drivers/scsi/constants.c static bool scsi_opcode_sa_name(int cmd, int service_action, · line 327

Quoted 2 lines
drivers/scsi/constants.c +2 -0
+static int print_opcode_name(unsigned char * cdbp, int cdb_len,
+			     char *buf, int buf_len)

This doesn't print anything now, but just formats the CDB, so it
should be called format_opcode_name. Also as a convention pass
buf and buf_len as the first two arguments similar to s*printf, and fix up the formatting for the cdbp argument. Can you please just run your next series through checkpatch?

drivers/scsi/constants.c static void print_opcode_name(unsigned char * cdbp, int cdb_len) · line 375

Quoted 2 lines
drivers/scsi/constants.c +1 -1
-void __scsi_print_command(unsigned char *cdb)
+void __scsi_print_command(unsigned char *cdb, char *buf, int buf_len)

Rename this to scsi_format_command, pass buf and buf_len as first two argument, and as mention earlier pass in the cdb length as well.

drivers/scsi/constants.c static void print_opcode_name(unsigned char * cdbp, int cdb_len) · line 381

Quoted 6 lines

{

drivers/scsi/constants.c +3 -0
+	int len, off;
 
+	off = print_opcode_name(cdb, 0, buf, buf_len);
 	len = scsi_command_size(cdb);
+	/* Variable length CDBs are not supported */

Why?

#29 lore raw

PATCH v2 15/20 libata: use __scsi_print_command()

In reply to Hannes Reinecke

libata already uses an internal buffer, so we should be using __scsi_print_command() here.

---
 drivers/ata/libata-eh.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)
drivers/ata/libata-eh.c +4 -8
index dad83df..acf06ba 100644
@@ -2509,15 +2509,11 @@ static void ata_eh_link_report(struct ata_link *link)
 
 		if (ata_is_atapi(qc->tf.protocol)) {
 			if (qc->scsicmd)
-				scsi_print_command(qc->scsicmd);
+				__scsi_print_command(qc->scsicmd->cmnd,
+						     cdb_buf, sizeof(cdb_buf));
 			else
-				snprintf(cdb_buf, sizeof(cdb_buf),
-				 "cdb %02x %02x %02x %02x %02x %02x %02x %02x  "
-				 "%02x %02x %02x %02x %02x %02x %02x %02x\n         ",
-				 cdb[0], cdb[1], cdb[2], cdb[3],
-				 cdb[4], cdb[5], cdb[6], cdb[7],
-				 cdb[8], cdb[9], cdb[10], cdb[11],
-				 cdb[12], cdb[13], cdb[14], cdb[15]);
+				__scsi_print_command((unsigned char *)cdb,
+						     cdb_buf, sizeof(cdb_buf));
 		} else {
 			const char *descr = ata_get_cmd_descript(cmd->command);
 			if (descr)
Signature · 1 line
1.8.5.2
#30 lore raw

PATCH v2 16/20 scsi: separate out scsi_retval_string()

In reply to Hannes Reinecke

Implement scsi_retval_string() to simplify logging.

---
 drivers/scsi/constants.c | 28 ++++++++++++++++++++++++++++
 drivers/scsi/scsi.c      | 34 ++++++----------------------------
 include/scsi/scsi_dbg.h  |  1 +
 3 files changed, 35 insertions(+), 28 deletions(-)
drivers/scsi/constants.c +28 -0
index 5486816..85d2da0 100644
@@ -1426,6 +1426,34 @@ void scsi_print_sense(struct scsi_cmnd *cmd)
 EXPORT_SYMBOL(scsi_print_sense);
 
 #ifdef CONFIG_SCSI_CONSTANTS
+static const struct error_info internal_retval_table[] =
+{
+	{ NEEDS_RETRY, "NEEDS_RETRY " },
+	{ SUCCESS, "SUCCESS " },
+	{ FAILED, "FAILED " },
+	{ QUEUED, "QUEUED " },
+	{ SOFT_ERROR, "SOFT_ERROR " },
+	{ ADD_TO_MLQUEUE, "ADD_TO_MLQUEUE " },
+	{ TIMEOUT_ERROR, "TIMEOUT " },
+	{ SCSI_RETURN_NOT_HANDLED, "NOT_HANDLED " },
+	{ FAST_IO_FAIL, "FAST_IO_FAIL " },
+};
+#endif
+
+const char *
+scsi_retval_string(unsigned int ret)
+{
+#ifdef CONFIG_SCSI_CONSTANTS
+	int i;
+
+	for (i = 0; internal_retval_table[i].text; i++)
+		if (internal_retval_table[i].code12 == ret)
+			return internal_retval_table[i].text;
+#endif
+	return NULL;
+}
+
+#ifdef CONFIG_SCSI_CONSTANTS
 
 static const char * const hostbyte_table[]={
 "DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET",
drivers/scsi/scsi.c +6 -28
index 8954036..a1944c8 100644
@@ -566,35 +566,13 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
 				       SCSI_LOG_MLCOMPLETE_BITS);
 		if (((level > 0) && (cmd->result || disposition != SUCCESS)) ||
 		    (level > 1)) {
-			scmd_printk(KERN_INFO, cmd, "Done: ");
 			if (level > 2)
-				printk("0x%p ", cmd);
-			/*
-			 * Dump truncated values, so we usually fit within
-			 * 80 chars.
-			 */
-			switch (disposition) {
-			case SUCCESS:
-				printk("SUCCESS\n");
-				break;
-			case NEEDS_RETRY:
-				printk("RETRY\n");
-				break;
-			case ADD_TO_MLQUEUE:
-				printk("MLQUEUE\n");
-				break;
-			case FAILED:
-				printk("FAILED\n");
-				break;
-			case TIMEOUT_ERROR:
-				/* 
-				 * If called via scsi_times_out.
-				 */
-				printk("TIMEOUT\n");
-				break;
-			default:
-				printk("UNKNOWN\n");
-			}
+				scmd_printk(KERN_INFO, cmd,
+					    "Done: 0x%p %s\n", cmd,
+					    scsi_retval_string(disposition));
+			else
+				scmd_printk(KERN_INFO, cmd, "Done: %s",
+					    scsi_retval_string(disposition));
 			scsi_print_result(cmd);
 			scsi_print_command(cmd);
 			if (status_byte(cmd->result) & CHECK_CONDITION)
include/scsi/scsi_dbg.h +1 -0
index 5020e5e..1030cc1 100644
@@ -19,6 +19,7 @@ extern void __scsi_print_sense(struct scsi_device *, const char *name,
 			       int sense_len);
 extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_retval_string(unsigned int);
 extern const char *scsi_sense_key_string(unsigned char);
 extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
 					  const char **);
Signature · 1 line
1.8.5.2
#31 lore raw

Re: [PATCH 16/20] scsi: separate out scsi_retval_string()

Quoted 18 lines · Hannes Reinecke

Implement scsi_retval_string() to simplify logging.

---
  drivers/scsi/constants.c | 28 ++++++++++++++++++++++++++++
  drivers/scsi/scsi.c      | 34 ++++++----------------------------
  include/scsi/scsi_dbg.h  |  1 +
  3 files changed, 35 insertions(+), 28 deletions(-)
drivers/scsi/constants.c +1 -0
index 5486816..85d2da0 100644
@@ -1426,6 +1426,34 @@ void scsi_print_sense(struct scsi_cmnd *cmd)
  EXPORT_SYMBOL(scsi_print_sense);
 
  #ifdef CONFIG_SCSI_CONSTANTS
+static const struct error_info internal_retval_table[] =

drivers/scsi/constants.c void scsi_print_sense(struct scsi_cmnd *cmd) · line 1439

Quoted 10 lines
drivers/scsi/constants.c +10 -0
+{
+	{ NEEDS_RETRY, "NEEDS_RETRY " },
+	{ SUCCESS, "SUCCESS " },
+	{ FAILED, "FAILED " },
+	{ QUEUED, "QUEUED " },
+	{ SOFT_ERROR, "SOFT_ERROR " },
+	{ ADD_TO_MLQUEUE, "ADD_TO_MLQUEUE " },
+	{ TIMEOUT_ERROR, "TIMEOUT " },
+	{ SCSI_RETURN_NOT_HANDLED, "NOT_HANDLED " },
+	{ FAST_IO_FAIL, "FAST_IO_FAIL " },

We don't need to add space in the last of strings, I think. In scsi_log_completion(), the messages inserts line feeds after the strings.

Quoted 52 lines
drivers/scsi/constants.c +17 -0
+};
+#endif
+
+const char *
+scsi_retval_string(unsigned int ret)
+{
+#ifdef CONFIG_SCSI_CONSTANTS
+	int i;
+
+	for (i = 0; internal_retval_table[i].text; i++)
+		if (internal_retval_table[i].code12 == ret)
+			return internal_retval_table[i].text;
+#endif
+	return NULL;
+}
+
+#ifdef CONFIG_SCSI_CONSTANTS
 
  static const char * const hostbyte_table[]={
  "DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET",
drivers/scsi/scsi.c +0 -23
index 8954036..a1944c8 100644
@@ -566,35 +566,13 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
  				       SCSI_LOG_MLCOMPLETE_BITS);
  		if (((level > 0) && (cmd->result || disposition != SUCCESS)) ||
  		    (level > 1)) {
-			scmd_printk(KERN_INFO, cmd, "Done: ");
  			if (level > 2)
-				printk("0x%p ", cmd);
-			/*
-			 * Dump truncated values, so we usually fit within
-			 * 80 chars.
-			 */
-			switch (disposition) {
-			case SUCCESS:
-				printk("SUCCESS\n");
-				break;
-			case NEEDS_RETRY:
-				printk("RETRY\n");
-				break;
-			case ADD_TO_MLQUEUE:
-				printk("MLQUEUE\n");
-				break;
-			case FAILED:
-				printk("FAILED\n");
-				break;
-			case TIMEOUT_ERROR:
-				/*
-				 * If called via scsi_times_out.
-				 */

drivers/scsi/scsi.c void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) · line 574

Quoted 10 lines
drivers/scsi/scsi.c +5 -5
-				printk("TIMEOUT\n");
-				break;
-			default:
-				printk("UNKNOWN\n");
-			}
+				scmd_printk(KERN_INFO, cmd,
+					    "Done: 0x%p %s\n", cmd,
+					    scsi_retval_string(disposition));
+			else
+				scmd_printk(KERN_INFO, cmd, "Done: %s",

We had better add "\n" in this last strings to indicate the end of line. Structured printk automatically outputs the message in atomic, but adding "\n" becomes more readable.

Thanks,
Yoshihiro YUNOMAE

Quoted 17 lines
drivers/scsi/scsi.c +1 -0
+					    scsi_retval_string(disposition));
  			scsi_print_result(cmd);
  			scsi_print_command(cmd);
  			if (status_byte(cmd->result) & CHECK_CONDITION)
include/scsi/scsi_dbg.h +1 -0
index 5020e5e..1030cc1 100644
@@ -19,6 +19,7 @@ extern void __scsi_print_sense(struct scsi_device *, const char *name,
  			       int sense_len);
  extern void scsi_show_result(int);
  extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_retval_string(unsigned int);
  extern const char *scsi_sense_key_string(unsigned char);
  extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
  					  const char **);
Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
#32 lore raw

Re: [PATCH 16/20] scsi: separate out scsi_retval_string()

Quoted 92 lines · Yoshihiro YUNOMAE
Quoted 18 lines · Hannes Reinecke

Implement scsi_retval_string() to simplify logging.

---
  drivers/scsi/constants.c | 28 ++++++++++++++++++++++++++++
  drivers/scsi/scsi.c      | 34 ++++++----------------------------
  include/scsi/scsi_dbg.h  |  1 +
  3 files changed, 35 insertions(+), 28 deletions(-)
drivers/scsi/constants.c +1 -0
index 5486816..85d2da0 100644
@@ -1426,6 +1426,34 @@ void scsi_print_sense(struct scsi_cmnd *cmd)
  EXPORT_SYMBOL(scsi_print_sense);
 
  #ifdef CONFIG_SCSI_CONSTANTS
+static const struct error_info internal_retval_table[] =

drivers/scsi/constants.c void scsi_print_sense(struct scsi_cmnd *cmd) · line 1439

Quoted 10 lines
drivers/scsi/constants.c +10 -0
+{
+	{ NEEDS_RETRY, "NEEDS_RETRY " },
+	{ SUCCESS, "SUCCESS " },
+	{ FAILED, "FAILED " },
+	{ QUEUED, "QUEUED " },
+	{ SOFT_ERROR, "SOFT_ERROR " },
+	{ ADD_TO_MLQUEUE, "ADD_TO_MLQUEUE " },
+	{ TIMEOUT_ERROR, "TIMEOUT " },
+	{ SCSI_RETURN_NOT_HANDLED, "NOT_HANDLED " },
+	{ FAST_IO_FAIL, "FAST_IO_FAIL " },

We don't need to add space in the last of strings, I think. In scsi_log_completion(), the messages inserts line feeds after the strings.

Quoted 58 lines
drivers/scsi/constants.c +17 -0
+};
+#endif
+
+const char *
+scsi_retval_string(unsigned int ret)
+{
+#ifdef CONFIG_SCSI_CONSTANTS
+	int i;
+
+	for (i = 0; internal_retval_table[i].text; i++)
+		if (internal_retval_table[i].code12 == ret)
+			return internal_retval_table[i].text;
+#endif
+	return NULL;
+}
+
+#ifdef CONFIG_SCSI_CONSTANTS
 
  static const char * const hostbyte_table[]={
  "DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET",
drivers/scsi/scsi.c +1 -28
index 8954036..a1944c8 100644
@@ -566,35 +566,13 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
  				       SCSI_LOG_MLCOMPLETE_BITS);
  		if (((level > 0) && (cmd->result || disposition != SUCCESS)) ||
  		    (level > 1)) {
-			scmd_printk(KERN_INFO, cmd, "Done: ");
  			if (level > 2)
-				printk("0x%p ", cmd);
-			/*
-			 * Dump truncated values, so we usually fit within
-			 * 80 chars.
-			 */
-			switch (disposition) {
-			case SUCCESS:
-				printk("SUCCESS\n");
-				break;
-			case NEEDS_RETRY:
-				printk("RETRY\n");
-				break;
-			case ADD_TO_MLQUEUE:
-				printk("MLQUEUE\n");
-				break;
-			case FAILED:
-				printk("FAILED\n");
-				break;
-			case TIMEOUT_ERROR:
-				/*
-				 * If called via scsi_times_out.
-				 */
-				printk("TIMEOUT\n");
-				break;
-			default:
-				printk("UNKNOWN\n");
-			}
+				scmd_printk(KERN_INFO, cmd,
Quoted 9 lines

drivers/scsi/scsi.c void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) · line 574

Quoted 4 lines
drivers/scsi/scsi.c +4 -0
+					    "Done: 0x%p %s\n", cmd,
+					    scsi_retval_string(disposition));
+			else
+				scmd_printk(KERN_INFO, cmd, "Done: %s",

We had better add "\n" in this last strings to indicate the end of line. Structured printk automatically outputs the message in atomic, but adding "\n" becomes more readable.

True, we should be adding the newline.
Although the reasoning is wrong; a newline instructs printk() to actually ship out the message. Without a newline printk assumes it'll be line continuation.

Cheers,

Hannes

Signature · 8 lines
Dr. Hannes Reinecke		      zSeries & Storage
[email protected]			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
#33 lore raw

Re: [PATCH 16/20] scsi: separate out scsi_retval_string()

In reply to Hannes Reinecke
Quoted 1 line · Hannes Reinecke

Implement scsi_retval_string() to simplify logging.

Needs a way better patch description. What exactly is this going to be useful for?

#34 lore raw

PATCH v2 17/20 scsi: separate out scsi_host_hostbyte() and scsi_show_driverbyte()

In reply to Hannes Reinecke
---
 drivers/scsi/constants.c | 56 +++++++++++++++++++++++++++++++++++++-----------
 include/scsi/scsi_dbg.h  |  2 ++
 2 files changed, 46 insertions(+), 12 deletions(-)
drivers/scsi/constants.c +44 -12
index 85d2da0..630e272 100644
@@ -1468,31 +1468,63 @@ static const char * const driverbyte_table[]={
 "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
 #define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)
 
-void scsi_show_result(int result)
+#endif
+
+const char *scsi_show_hostbyte(int result)
 {
+	const char *hb_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
 	int hb = host_byte(result);
-	int db = driver_byte(result);
 
-	printk("Result: hostbyte=%s driverbyte=%s\n",
-	       (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb]     : "invalid"),
-	       (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));
+	if (hb < NUM_HOSTBYTE_STRS)
+		hb_string = hostbyte_table[hb];
+#endif
+	return hb_string;
 }
+EXPORT_SYMBOL(scsi_show_hostbyte);
 
-#else
+const char *scsi_show_driverbyte(int result)
+{
+	const char *db_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
+	int db = driver_byte(result);
+
+	if (db < NUM_DRIVERBYTE_STRS)
+		db_string = driverbyte_table[db];
+#endif
+	return db_string;
+}
+EXPORT_SYMBOL(scsi_show_driverbyte);
 
 void scsi_show_result(int result)
 {
-	printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-	       host_byte(result), driver_byte(result));
-}
+	const char *hb_string = scsi_show_hostbyte(result);
+	const char *db_string = scsi_show_driverbyte(result);
 
-#endif
+	if (hb_string || db_string)
+		printk("Result: hostbyte=%s driverbyte=%s\n",
+		       hb_string ? hb_string : "invalid",
+		       db_string ? db_string : "invalid");
+	else
+		printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
+		       host_byte(result), driver_byte(result));
+}
 EXPORT_SYMBOL(scsi_show_result);
 
 
 void scsi_print_result(struct scsi_cmnd *cmd)
 {
-	scmd_printk(KERN_INFO, cmd, " ");
-	scsi_show_result(cmd->result);
+	const char *hb_string = scsi_show_hostbyte(cmd->result);
+	const char *db_string = scsi_show_driverbyte(cmd->result);
+
+	if (hb_string || db_string)
+		scmd_printk(KERN_INFO, cmd,
+			    "Result: hostbyte=%s driverbyte=%s",
+			    hb_string ? hb_string : "invalid",
+			    db_string ? db_string : "invalid");
+	else
+		scmd_printk(KERN_INFO, cmd,
+			    "Result: hostbyte=0x%02x driverbyte=0x%02x",
+			    host_byte(cmd->result), driver_byte(cmd->result));
 }
 EXPORT_SYMBOL(scsi_print_result);
include/scsi/scsi_dbg.h +2 -0
index 1030cc1..a3170a5 100644
@@ -19,6 +19,8 @@ extern void __scsi_print_sense(struct scsi_device *, const char *name,
 			       int sense_len);
 extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_show_hostbyte(int);
+extern const char *scsi_show_driverbyte(int);
 extern const char *scsi_retval_string(unsigned int);
 extern const char *scsi_sense_key_string(unsigned char);
 extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
Signature · 1 line
1.8.5.2
#35 lore raw

Re: [PATCH 17/20] scsi: separate out scsi_host_hostbyte() and scsi_show_driverbyte()

This patch looks good.

Thanks,
Yoshihiro YUNOMAE

Quoted 100 lines · Hannes Reinecke
---
  drivers/scsi/constants.c | 56 +++++++++++++++++++++++++++++++++++++-----------
  include/scsi/scsi_dbg.h  |  2 ++
  2 files changed, 46 insertions(+), 12 deletions(-)
drivers/scsi/constants.c +44 -12
index 85d2da0..630e272 100644
@@ -1468,31 +1468,63 @@ static const char * const driverbyte_table[]={
  "DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
  #define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)
 
-void scsi_show_result(int result)
+#endif
+
+const char *scsi_show_hostbyte(int result)
  {
+	const char *hb_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
  	int hb = host_byte(result);
-	int db = driver_byte(result);
 
-	printk("Result: hostbyte=%s driverbyte=%s\n",
-	       (hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb]     : "invalid"),
-	       (db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));
+	if (hb < NUM_HOSTBYTE_STRS)
+		hb_string = hostbyte_table[hb];
+#endif
+	return hb_string;
  }
+EXPORT_SYMBOL(scsi_show_hostbyte);
 
-#else
+const char *scsi_show_driverbyte(int result)
+{
+	const char *db_string = NULL;
+#ifdef CONFIG_SCSI_CONSTANTS
+	int db = driver_byte(result);
+
+	if (db < NUM_DRIVERBYTE_STRS)
+		db_string = driverbyte_table[db];
+#endif
+	return db_string;
+}
+EXPORT_SYMBOL(scsi_show_driverbyte);
 
  void scsi_show_result(int result)
  {
-	printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-	       host_byte(result), driver_byte(result));
-}
+	const char *hb_string = scsi_show_hostbyte(result);
+	const char *db_string = scsi_show_driverbyte(result);
 
-#endif
+	if (hb_string || db_string)
+		printk("Result: hostbyte=%s driverbyte=%s\n",
+		       hb_string ? hb_string : "invalid",
+		       db_string ? db_string : "invalid");
+	else
+		printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
+		       host_byte(result), driver_byte(result));
+}
  EXPORT_SYMBOL(scsi_show_result);
 
 
  void scsi_print_result(struct scsi_cmnd *cmd)
  {
-	scmd_printk(KERN_INFO, cmd, " ");
-	scsi_show_result(cmd->result);
+	const char *hb_string = scsi_show_hostbyte(cmd->result);
+	const char *db_string = scsi_show_driverbyte(cmd->result);
+
+	if (hb_string || db_string)
+		scmd_printk(KERN_INFO, cmd,
+			    "Result: hostbyte=%s driverbyte=%s",
+			    hb_string ? hb_string : "invalid",
+			    db_string ? db_string : "invalid");
+	else
+		scmd_printk(KERN_INFO, cmd,
+			    "Result: hostbyte=0x%02x driverbyte=0x%02x",
+			    host_byte(cmd->result), driver_byte(cmd->result));
  }
  EXPORT_SYMBOL(scsi_print_result);
include/scsi/scsi_dbg.h +2 -0
index 1030cc1..a3170a5 100644
@@ -19,6 +19,8 @@ extern void __scsi_print_sense(struct scsi_device *, const char *name,
  			       int sense_len);
  extern void scsi_show_result(int);
  extern void scsi_print_result(struct scsi_cmnd *);
+extern const char *scsi_show_hostbyte(int);
+extern const char *scsi_show_driverbyte(int);
  extern const char *scsi_retval_string(unsigned int);
  extern const char *scsi_sense_key_string(unsigned char);
  extern const char *scsi_extd_sense_format(unsigned char, unsigned char,
Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
#37 lore raw

PATCH v2 18/20 scsi: remove scsi_show_result()

In reply to Hannes Reinecke

scsi_show_result() was only ever used in one place in sd.c. So open-code scsi_show_result() in sd.c and remove it from constants.c.

---
 drivers/scsi/constants.c | 16 -------------
 drivers/scsi/sd.c        | 62 +++++++++++++++++++++++++++++-------------------
 include/scsi/scsi_dbg.h  |  1 -
 3 files changed, 37 insertions(+), 42 deletions(-)
drivers/scsi/constants.c +0 -16
index 630e272..d7516c3 100644
@@ -1496,22 +1496,6 @@ const char *scsi_show_driverbyte(int result)
 }
 EXPORT_SYMBOL(scsi_show_driverbyte);
 
-void scsi_show_result(int result)
-{
-	const char *hb_string = scsi_show_hostbyte(result);
-	const char *db_string = scsi_show_driverbyte(result);
-
-	if (hb_string || db_string)
-		printk("Result: hostbyte=%s driverbyte=%s\n",
-		       hb_string ? hb_string : "invalid",
-		       db_string ? db_string : "invalid");
-	else
-		printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-		       host_byte(result), driver_byte(result));
-}
-EXPORT_SYMBOL(scsi_show_result);
-
-
 void scsi_print_result(struct scsi_cmnd *cmd)
 {
 	const char *hb_string = scsi_show_hostbyte(cmd->result);
drivers/scsi/sd.c +37 -25

145 lines not on this page · raw message

include/scsi/scsi_dbg.h +0 -1
index a3170a5..b4770f0 100644
@@ -17,7 +17,6 @@ extern void scsi_print_sense(struct scsi_cmnd *);
 extern void __scsi_print_sense(struct scsi_device *, const char *name,
 			       const unsigned char *sense_buffer,
 			       int sense_len);
-extern void scsi_show_result(int);
 extern void scsi_print_result(struct scsi_cmnd *);
 extern const char *scsi_show_hostbyte(int);
 extern const char *scsi_show_driverbyte(int);
Signature · 1 line
1.8.5.2
#38 lore raw

Re: [PATCH 18/20] scsi: remove scsi_show_result()

This patch looks good.

Thanks,
Yoshihiro YUNOMAE

Quoted 212 lines · Hannes Reinecke

scsi_show_result() was only ever used in one place in sd.c. So open-code scsi_show_result() in sd.c and remove it from constants.c.

---
  drivers/scsi/constants.c | 16 -------------
  drivers/scsi/sd.c        | 62 +++++++++++++++++++++++++++++-------------------
  include/scsi/scsi_dbg.h  |  1 -
  3 files changed, 37 insertions(+), 42 deletions(-)
drivers/scsi/constants.c +0 -16
index 630e272..d7516c3 100644
@@ -1496,22 +1496,6 @@ const char *scsi_show_driverbyte(int result)
  }
  EXPORT_SYMBOL(scsi_show_driverbyte);
 
-void scsi_show_result(int result)
-{
-	const char *hb_string = scsi_show_hostbyte(result);
-	const char *db_string = scsi_show_driverbyte(result);
-
-	if (hb_string || db_string)
-		printk("Result: hostbyte=%s driverbyte=%s\n",
-		       hb_string ? hb_string : "invalid",
-		       db_string ? db_string : "invalid");
-	else
-		printk("Result: hostbyte=0x%02x driverbyte=0x%02x\n",
-		       host_byte(result), driver_byte(result));
-}
-EXPORT_SYMBOL(scsi_show_result);
-
-
  void scsi_print_result(struct scsi_cmnd *cmd)
  {
  	const char *hb_string = scsi_show_hostbyte(cmd->result);
drivers/scsi/sd.c +37 -25
index aac267a..f96e3f9 100644
@@ -116,7 +116,7 @@ static int sd_eh_action(struct scsi_cmnd *, int);
  static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer);
  static void scsi_disk_release(struct device *cdev);
  static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *);
-static void sd_print_result(struct scsi_disk *, int);
+static void sd_print_result(struct scsi_disk *, const char *, int);
 
  static DEFINE_SPINLOCK(sd_index_lock);
  static DEFINE_IDA(sd_index_ida);
@@ -1479,7 +1479,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
  	}
 
  	if (res) {
-		sd_print_result(sdkp, res);
+		sd_print_result(sdkp, "SYNCHRONIZE CACHE failed", res);
 
  		if (driver_byte(res) & DRIVER_SENSE)
  			sd_print_sense_hdr(sdkp, &sshdr);
@@ -1820,8 +1820,8 @@ sd_spinup_disk(struct scsi_disk *sdkp)
  			/* no sense, TUR either succeeded or failed
  			 * with a status error */
  			if(!spintime && !scsi_status_is_good(the_result)) {
-				sd_printk(KERN_NOTICE, sdkp, "Unit Not Ready\n");
-				sd_print_result(sdkp, the_result);
+				sd_print_result(sdkp, "Unit Not Ready",
+						the_result);
  			}
  			break;
  		}
@@ -1937,11 +1937,13 @@ static int sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer
  	return ret;
  }
 
-static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp,
-			struct scsi_sense_hdr *sshdr, int sense_valid,
-			int the_result)
+static void read_capacity_error(struct scsi_disk *sdkp,
+				struct scsi_sense_hdr *sshdr, int sense_valid,
+				const char *msg, int the_result)
  {
-	sd_print_result(sdkp, the_result);
+	struct scsi_device *sdp = sdkp->device;
+
+	sd_print_result(sdkp, msg, the_result);
  	if (driver_byte(the_result) & DRIVER_SENSE)
  		sd_print_sense_hdr(sdkp, sshdr);
  	else
@@ -1970,9 +1972,9 @@ static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp,
 
  #define READ_CAPACITY_RETRIES_ON_RESET	10
 
-static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
-						unsigned char *buffer)
+static int read_capacity_16(struct scsi_disk *sdkp, unsigned char *buffer)
  {
+	struct scsi_device *sdp = sdkp->device;
  	unsigned char cmd[16];
  	struct scsi_sense_hdr sshdr;
  	int sense_valid = 0;
@@ -2022,8 +2024,8 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
  	} while (the_result && retries);
 
  	if (the_result) {
-		sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY(16) failed\n");
-		read_capacity_error(sdkp, sdp, &sshdr, sense_valid, the_result);
+		read_capacity_error(sdkp, &sshdr, sense_valid,
+				    "READ CAPACITY(16) failed", the_result);
  		return -EINVAL;
  	}
 
@@ -2066,9 +2068,9 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
  	return sector_size;
  }
 
-static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
-						unsigned char *buffer)
+static int read_capacity_10(struct scsi_disk *sdkp, unsigned char *buffer)
  {
+	struct scsi_device *sdp = sdkp->device;
  	unsigned char cmd[16];
  	struct scsi_sense_hdr sshdr;
  	int sense_valid = 0;
@@ -2104,8 +2106,8 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
  	} while (the_result && retries);
 
  	if (the_result) {
-		sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY failed\n");
-		read_capacity_error(sdkp, sdp, &sshdr, sense_valid, the_result);
+		read_capacity_error(sdkp, &sshdr, sense_valid,
+				    "READ CAPACITY failed", the_result);
  		return -EINVAL;
  	}
 
@@ -2158,17 +2160,17 @@ sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
  	sector_t old_capacity = sdkp->capacity;
 
  	if (sd_try_rc16_first(sdp)) {
-		sector_size = read_capacity_16(sdkp, sdp, buffer);
+		sector_size = read_capacity_16(sdkp, buffer);
  		if (sector_size == -EOVERFLOW)
  			goto got_data;
  		if (sector_size == -ENODEV)
  			return;
  		if (sector_size < 0)
-			sector_size = read_capacity_10(sdkp, sdp, buffer);
+			sector_size = read_capacity_10(sdkp, buffer);
  		if (sector_size < 0)
  			return;
  	} else {
-		sector_size = read_capacity_10(sdkp, sdp, buffer);
+		sector_size = read_capacity_10(sdkp, buffer);
  		if (sector_size == -EOVERFLOW)
  			goto got_data;
  		if (sector_size < 0)
@@ -2178,7 +2180,7 @@ sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
  			int old_sector_size = sector_size;
  			sd_printk(KERN_NOTICE, sdkp, "Very big device. "
  					"Trying to use READ CAPACITY(16).\n");
-			sector_size = read_capacity_16(sdkp, sdp, buffer);
+			sector_size = read_capacity_16(sdkp, buffer);
  			if (sector_size < 0) {
  				sd_printk(KERN_NOTICE, sdkp,
  					"Using 0xffffffff as device size\n");
@@ -3124,8 +3126,7 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
  	res = scsi_execute_req_flags(sdp, cmd, DMA_NONE, NULL, 0, &sshdr,
  			       SD_TIMEOUT, SD_MAX_RETRIES, NULL, REQ_PM);
  	if (res) {
-		sd_printk(KERN_WARNING, sdkp, "START_STOP FAILED\n");
-		sd_print_result(sdkp, res);
+		sd_print_result(sdkp, "START_STOP failed", res);
  		if (driver_byte(res) & DRIVER_SENSE)
  			sd_print_sense_hdr(sdkp, &sshdr);
  		if (scsi_sense_valid(&sshdr) &&
@@ -3326,9 +3327,20 @@ static void sd_print_sense_hdr(struct scsi_disk *sdkp,
  			     sshdr->asc, sshdr->ascq);
  }
 
-static void sd_print_result(struct scsi_disk *sdkp, int result)
+static void sd_print_result(struct scsi_disk *sdkp, const char *msg,
+			    int result)
  {
-	sd_printk(KERN_INFO, sdkp, " ");
-	scsi_show_result(result);
+	const char *hb_string = scsi_show_hostbyte(result);
+	const char *db_string = scsi_show_driverbyte(result);
+
+	if (hb_string || db_string)
+		sd_printk(KERN_INFO, sdkp,
+			  "%s: Result: hostbyte=%s driverbyte=%s\n", msg,
+			  hb_string ? hb_string : "invalid",
+			  db_string ? db_string : "invalid");
+	else
+		sd_printk(KERN_INFO, sdkp,
+			  "%s: Result: hostbyte=0x%02x driverbyte=0x%02x\n",
+			  msg, host_byte(result), driver_byte(result));
  }
 
include/scsi/scsi_dbg.h +0 -1
index a3170a5..b4770f0 100644
@@ -17,7 +17,6 @@ extern void scsi_print_sense(struct scsi_cmnd *);
  extern void __scsi_print_sense(struct scsi_device *, const char *name,
  			       const unsigned char *sense_buffer,
  			       int sense_len);
-extern void scsi_show_result(int);
  extern void scsi_print_result(struct scsi_cmnd *);
  extern const char *scsi_show_hostbyte(int);
  extern const char *scsi_show_driverbyte(int);
Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
#39 lore raw

Re: [PATCH 18/20] scsi: remove scsi_show_result()

In reply to Hannes Reinecke
Quoted 3 lines · Hannes Reinecke

scsi_show_result() was only ever used in one place in sd.c. So open-code scsi_show_result() in sd.c and remove it from constants.c.

This does a lot more refactoring in sd.c, which needs a proper explanation and probably splitting into a separate patch.

I also think we're much better having a different prototype for scsi_print_result and use it here, similar to your sdev_prefix_printk:

void scsi_print_result(struct scsi_device *sdev, const char *prefix)

{
	...
}
#40 lore raw

PATCH v2 19/20 sd: Reduce logging output

In reply to Hannes Reinecke

There is no need to print out the command result verbatim; that will be done by the scsi stack if required. Here we just should log the result in short if requested.

---
 drivers/scsi/sd.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)
drivers/scsi/sd.c +7 -6
index f96e3f9..aa94385 100644
@@ -1701,14 +1701,15 @@ static int sd_done(struct scsi_cmnd *SCpnt)
 			sense_deferred = scsi_sense_is_deferred(&sshdr);
 	}
 #ifdef CONFIG_SCSI_LOGGING
-	SCSI_LOG_HLCOMPLETE(1, scsi_print_result(SCpnt));
+	SCSI_LOG_HLCOMPLETE(1, scmd_printk(KERN_INFO, SCpnt,
+		"sd_done: result[status,msg,host,driver]=%x,%x,%x,%x\n",
+		status_byte(result), msg_byte(result),
+		host_byte(result), driver_byte(result)));
 	if (sense_valid) {
 		SCSI_LOG_HLCOMPLETE(1, scmd_printk(KERN_INFO, SCpnt,
-						   "sd_done: sb[respc,sk,asc,"
-						   "ascq]=%x,%x,%x,%x\n",
-						   sshdr.response_code,
-						   sshdr.sense_key, sshdr.asc,
-						   sshdr.ascq));
+			"sd_done: sb[respc,sk,asc,ascq]=%x,%x,%x,%x\n",
+			sshdr.response_code, sshdr.sense_key,
+			sshdr.asc, sshdr.ascq));
 	}
 #endif
 	sdkp->medium_access_timed_out = 0;
Signature · 1 line
1.8.5.2
Reviewed-by on v2 19/20
#41 lore raw

Re: [PATCH 19/20] sd: Reduce logging output

Quoted 3 lines · Hannes Reinecke

There is no need to print out the command result verbatim; that will be done by the scsi stack if required. Here we just should log the result in short if requested.

Looks good,

#42 lore raw

PATCH v2 20/20 scsi_error: format abort error message

In reply to Hannes Reinecke

Decode the return value if the command abort failed.

---
 drivers/scsi/scsi_error.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/scsi/scsi_error.c +2 -2
index 8a6d382..eca63b2 100644
@@ -157,8 +157,8 @@ scmd_eh_abort_handler(struct work_struct *work)
 		} else {
 			SCSI_LOG_ERROR_RECOVERY(3,
 				scmd_printk(KERN_INFO, scmd,
-					    "scmd %p abort failed, rtn %d\n",
-					    scmd, rtn));
+					    "scmd %p abort failed, rtn %s\n",
+					    scmd, scsi_retval_string(rtn)));
 		}
 	}
 
Signature · 1 line
1.8.5.2
#43 lore raw

Re: [PATCH 20/20] scsi_error: format abort error message

Quoted 13 lines · Hannes Reinecke

Decode the return value if the command abort failed.

---
  drivers/scsi/scsi_error.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)
drivers/scsi/scsi_error.c +0 -0
index 8a6d382..eca63b2 100644

drivers/scsi/scsi_error.c scmd_eh_abort_handler(struct work_struct *work) · line 161

Quoted 7 lines
drivers/scsi/scsi_error.c +2 -2
@@ -157,8 +157,8 @@ scmd_eh_abort_handler(struct work_struct *work)
  		} else {
  			SCSI_LOG_ERROR_RECOVERY(3,
  				scmd_printk(KERN_INFO, scmd,
-					    "scmd %p abort failed, rtn %d\n",
-					    scmd, rtn));
+					    "scmd %p abort failed, rtn %s\n",
+					    scmd, scsi_retval_string(rtn)));

If CONFIG_SCSI_CONSTANTS is disabled, scsi_retval_string() returns NULL. So, if so, we had better output the raw value here.

Thanks,
Yoshihiro YUNOMAE

Signature · 4 lines
Yoshihiro YUNOMAE
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: [email protected]
#44 lore raw

Re: [PATCH 20/20] scsi_error: format abort error message

In reply to Hannes Reinecke
Quoted 1 line · Hannes Reinecke

Decode the return value if the command abort failed.

I've not seen an answer to my question in reply to the previous version of this. Why would you do pretty printing of a variable that can just return SUCCESS or FAILURE?

#45 lore raw

RE: [PATCH 20/20] scsi_error: format abort error message

Quoted 7 lines

-----Original Message-----
From: [email protected] [mailto:linux-scsi- [email protected]] On Behalf Of Christoph Hellwig
Sent: Friday, 05 September, 2014 7:33 PM
Subject: Re: [PATCH 20/20] scsi_error: format abort error message

On Wed, Sep 03, 2014 at 12:06:15PM +0200, Hannes Reinecke wrote:

...

Quoted 9 lines
Quoted 9 lines

Decode the return value if the command abort failed.

drivers/scsi/scsi_error.c +2 -2
@@ -157,8 +157,8 @@ scmd_eh_abort_handler(struct work_struct *work)
 		} else {
 			SCSI_LOG_ERROR_RECOVERY(3,
 				scmd_printk(KERN_INFO, scmd,
-					    "scmd %p abort failed, rtn %d\n",
-					    scmd, rtn));
+					    "scmd %p abort failed, rtn %s\n",
+					    scmd, scsi_retval_string(rtn)));

...

Quoted 3 lines

I've not seen an answer to my question in reply to the previous version of this. Why would you do pretty printing of a variable that can just return SUCCESS or FAILURE?

Is there anything prohibiting the scsi_eh_abort_handler provided by the LLD from returning any of the other values like NEEDS_RETRY?

#define NEEDS_RETRY     0x2001
#define SUCCESS         0x2002
#define FAILED          0x2003
#define QUEUED          0x2004
#define SOFT_ERROR      0x2005
#define ADD_TO_MLQUEUE  0x2006
#define TIMEOUT_ERROR   0x2007

#define SCSI_RETURN_NOT_HANDLED 0x2008
#define FAST_IO_FAIL 0x2009

---
Rob Elliott HP Server Storage

#46 lore raw

Re: [PATCH 20/20] scsi_error: format abort error message

Quoted 32 lines · Robert (Server Storage)
Quoted 7 lines

-----Original Message-----
From: [email protected] [mailto:linux-scsi- [email protected]] On Behalf Of Christoph Hellwig
Sent: Friday, 05 September, 2014 7:33 PM
Subject: Re: [PATCH 20/20] scsi_error: format abort error message

On Wed, Sep 03, 2014 at 12:06:15PM +0200, Hannes Reinecke wrote:

...

Quoted 9 lines
Quoted 9 lines

Decode the return value if the command abort failed.

drivers/scsi/scsi_error.c +2 -2
@@ -157,8 +157,8 @@ scmd_eh_abort_handler(struct work_struct *work)
  		} else {
  			SCSI_LOG_ERROR_RECOVERY(3,
  				scmd_printk(KERN_INFO, scmd,
-					    "scmd %p abort failed, rtn %d\n",
-					    scmd, rtn));
+					    "scmd %p abort failed, rtn %s\n",
+					    scmd, scsi_retval_string(rtn)));

...

Quoted 3 lines

I've not seen an answer to my question in reply to the previous version of this. Why would you do pretty printing of a variable that can just return SUCCESS or FAILURE?

Is there anything prohibiting the scsi_eh_abort_handler provided by the LLD from returning any of the other values like NEEDS_RETRY?

#define NEEDS_RETRY     0x2001
#define SUCCESS         0x2002
#define FAILED          0x2003
#define QUEUED          0x2004
#define SOFT_ERROR      0x2005
#define ADD_TO_MLQUEUE  0x2006
#define TIMEOUT_ERROR   0x2007
Quoted 3 lines

#define SCSI_RETURN_NOT_HANDLED 0x2008
#define FAST_IO_FAIL 0x2009

There is not, and hence I've added this patch. Although the intention here would be that we should be enforcing it, either by stating it in the description of the function or programmatically.

Cheers,

Hannes

Signature · 8 lines
Dr. Hannes Reinecke		      zSeries & Storage
[email protected]			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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#47 lore raw

Re: [PATCH 20/20] scsi_error: format abort error message

In reply to Elliott, Robert (Server Storage)
Quoted 6 lines · Robert (Server Storage)
Quoted 3 lines

I've not seen an answer to my question in reply to the previous version of this. Why would you do pretty printing of a variable that can just return SUCCESS or FAILURE?

Is there anything prohibiting the scsi_eh_abort_handler provided by the LLD from returning any of the other values like NEEDS_RETRY?

Right now there is nothing prohibiting them from returning any possible value, but we only handle SUCCESS specially and treat everything else as FAILED.

If anyone is motivated enough to make this cleaner we should add a WARN_ON for any other value as it's a driver bug.

#48 lore raw
In reply to Hannes Reinecke

One more request:

if you already do major surgery to constan.c can we get rid of the CONFIG_SCSI_CONSTANTS all over it?

E.g. only keep the code under CONFIG_SCSI_CONSTANTS in, maybe add a no-constants.c for the stubs and move the bit of glue code always compiled to scsi.c?