1 files changed, 35 insertions, 37 deletions

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 1d4a6f1e88cd..7951fd946bf9 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -533,8 +533,6 @@ void ata_scsi_error(struct Scsi_Host *host)
 	unsigned long flags;
 	LIST_HEAD(eh_work_q);
 
-	DPRINTK("ENTER\n");
-
 	spin_lock_irqsave(host->host_lock, flags);
 	list_splice_init(&host->eh_cmd_q, &eh_work_q);
 	spin_unlock_irqrestore(host->host_lock, flags);
@@ -548,7 +546,6 @@ void ata_scsi_error(struct Scsi_Host *host)
 	/* finish or retry handled scmd's and clean up */
 	WARN_ON(!list_empty(&eh_work_q));
 
-	DPRINTK("EXIT\n");
 }
 
 /**
@@ -940,7 +937,7 @@ void ata_std_sched_eh(struct ata_port *ap)
 	ata_eh_set_pending(ap, 1);
 	scsi_schedule_eh(ap->scsi_host);
 
-	DPRINTK("port EH scheduled\n");
+	trace_ata_std_sched_eh(ap);
 }
 EXPORT_SYMBOL_GPL(ata_std_sched_eh);
 
@@ -1070,7 +1067,7 @@ static void __ata_port_freeze(struct ata_port *ap)
 
 	ap->pflags |= ATA_PFLAG_FROZEN;
 
-	DPRINTK("ata%u port frozen\n", ap->print_id);
+	trace_ata_port_freeze(ap);
 }
 
 /**
@@ -1147,7 +1144,7 @@ void ata_eh_thaw_port(struct ata_port *ap)
 
 	spin_unlock_irqrestore(ap->lock, flags);
 
-	DPRINTK("ata%u port thawed\n", ap->print_id);
+	trace_ata_port_thaw(ap);
 }
 
 static void ata_eh_scsidone(struct scsi_cmnd *scmd)
@@ -1217,8 +1214,7 @@ void ata_dev_disable(struct ata_device *dev)
 	if (!ata_dev_enabled(dev))
 		return;
 
-	if (ata_msg_drv(dev->link->ap))
-		ata_dev_warn(dev, "disabled\n");
+	ata_dev_warn(dev, "disable device\n");
 	ata_acpi_on_disable(dev);
 	ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 | ATA_DNXFER_QUIET);
 	dev->class++;
@@ -1287,6 +1283,8 @@ void ata_eh_about_to_do(struct ata_link *link, struct ata_device *dev,
 	struct ata_eh_context *ehc = &link->eh_context;
 	unsigned long flags;
 
+	trace_ata_eh_about_to_do(link, dev ? dev->devno : 0, action);
+
 	spin_lock_irqsave(ap->lock, flags);
 
 	ata_eh_clear_action(link, dev, ehi, action);
@@ -1317,6 +1315,8 @@ void ata_eh_done(struct ata_link *link, struct ata_device *dev,
 {
 	struct ata_eh_context *ehc = &link->eh_context;
 
+	trace_ata_eh_done(link, dev ? dev->devno : 0, action);
+
 	ata_eh_clear_action(link, dev, &ehc->i, action);
 }
 
@@ -1421,8 +1421,6 @@ static void ata_eh_request_sense(struct ata_queued_cmd *qc,
 		return;
 	}
 
-	DPRINTK("ATA request sense\n");
-
 	ata_tf_init(dev, &tf);
 	tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
 	tf.flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
@@ -1463,8 +1461,6 @@ unsigned int atapi_eh_request_sense(struct ata_device *dev,
 	struct ata_port *ap = dev->link->ap;
 	struct ata_taskfile tf;
 
-	DPRINTK("ATAPI request sense\n");
-
 	memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
 
 	/* initialize sense_buf with the error register,
@@ -1928,8 +1924,6 @@ static void ata_eh_link_autopsy(struct ata_link *link)
 	u32 serror;
 	int rc;
 
-	DPRINTK("ENTER\n");
-
 	if (ehc->i.flags & ATA_EHI_NO_AUTOPSY)
 		return;
 
@@ -2036,7 +2030,6 @@ static void ata_eh_link_autopsy(struct ata_link *link)
 		ehc->i.action |= ata_eh_speed_down(dev, eflags, all_err_mask);
 		trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
 	}
-	DPRINTK("EXIT\n");
 }
 
 /**
@@ -2086,16 +2079,15 @@ void ata_eh_autopsy(struct ata_port *ap)
 }
 
 /**
- *	ata_get_cmd_descript - get description for ATA command
- *	@command: ATA command code to get description for
+ *	ata_get_cmd_name - get name for ATA command
+ *	@command: ATA command code to get name for
  *
- *	Return a textual description of the given command, or NULL if the
- *	command is not known.
+ *	Return a textual name of the given command or "unknown"
  *
  *	LOCKING:
  *	None
  */
-const char *ata_get_cmd_descript(u8 command)
+const char *ata_get_cmd_name(u8 command)
 {
 #ifdef CONFIG_ATA_VERBOSE_ERROR
 	static const struct
@@ -2203,9 +2195,9 @@ const char *ata_get_cmd_descript(u8 command)
 			return cmd_descr[i].text;
 #endif
 
-	return NULL;
+	return "unknown";
 }
-EXPORT_SYMBOL_GPL(ata_get_cmd_descript);
+EXPORT_SYMBOL_GPL(ata_get_cmd_name);
 
 /**
  *	ata_eh_link_report - report error handling to user
@@ -2354,12 +2346,9 @@ static void ata_eh_link_report(struct ata_link *link)
 			}
 			__scsi_format_command(cdb_buf, sizeof(cdb_buf),
 					      cdb, cdb_len);
-		} else {
-			const char *descr = ata_get_cmd_descript(cmd->command);
-			if (descr)
-				ata_dev_err(qc->dev, "failed command: %s\n",
-					    descr);
-		}
+		} else
+			ata_dev_err(qc->dev, "failed command: %s\n",
+				    ata_get_cmd_name(cmd->command));
 
 		ata_dev_err(qc->dev,
 			"cmd %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x "
@@ -2596,12 +2585,19 @@ int ata_eh_reset(struct ata_link *link, int classify,
 
 		/* mark that this EH session started with reset */
 		ehc->last_reset = jiffies;
-		if (reset == hardreset)
+		if (reset == hardreset) {
 			ehc->i.flags |= ATA_EHI_DID_HARDRESET;
-		else
+			trace_ata_link_hardreset_begin(link, classes, deadline);
+		} else {
 			ehc->i.flags |= ATA_EHI_DID_SOFTRESET;
+			trace_ata_link_softreset_begin(link, classes, deadline);
+		}
 
 		rc = ata_do_reset(link, reset, classes, deadline, true);
+		if (reset == hardreset)
+			trace_ata_link_hardreset_end(link, classes, rc);
+		else
+			trace_ata_link_softreset_end(link, classes, rc);
 		if (rc && rc != -EAGAIN) {
 			failed_link = link;
 			goto fail;
@@ -2615,8 +2611,11 @@ int ata_eh_reset(struct ata_link *link, int classify,
 				ata_link_info(slave, "hard resetting link\n");
 
 			ata_eh_about_to_do(slave, NULL, ATA_EH_RESET);
+			trace_ata_slave_hardreset_begin(slave, classes,
+							deadline);
 			tmp = ata_do_reset(slave, reset, classes, deadline,
 					   false);
+			trace_ata_slave_hardreset_end(slave, classes, tmp);
 			switch (tmp) {
 			case -EAGAIN:
 				rc = -EAGAIN;
@@ -2644,7 +2643,9 @@ int ata_eh_reset(struct ata_link *link, int classify,
 			}
 
 			ata_eh_about_to_do(link, NULL, ATA_EH_RESET);
+			trace_ata_link_softreset_begin(link, classes, deadline);
 			rc = ata_do_reset(link, reset, classes, deadline, true);
+			trace_ata_link_softreset_end(link, classes, rc);
 			if (rc) {
 				failed_link = link;
 				goto fail;
@@ -2698,8 +2699,11 @@ int ata_eh_reset(struct ata_link *link, int classify,
 	 */
 	if (postreset) {
 		postreset(link, classes);
-		if (slave)
+		trace_ata_link_postreset(link, classes, rc);
+		if (slave) {
 			postreset(slave, classes);
+			trace_ata_slave_postreset(slave, classes, rc);
+		}
 	}
 
 	/*
@@ -2921,8 +2925,6 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
 	unsigned long flags;
 	int rc = 0;
 
-	DPRINTK("ENTER\n");
-
 	/* For PATA drive side cable detection to work, IDENTIFY must
 	 * be done backwards such that PDIAG- is released by the slave
 	 * device before the master device is identified.
@@ -3036,7 +3038,6 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
 
  err:
 	*r_failed_dev = dev;
-	DPRINTK("EXIT rc=%d\n", rc);
 	return rc;
 }
 
@@ -3551,8 +3552,6 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
 	int rc, nr_fails;
 	unsigned long flags, deadline;
 
-	DPRINTK("ENTER\n");
-
 	/* prep for recovery */
 	ata_for_each_link(link, ap, EDGE) {
 		struct ata_eh_context *ehc = &link->eh_context;
@@ -3760,7 +3759,6 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
 	if (rc && r_failed_link)
 		*r_failed_link = link;
 
-	DPRINTK("EXIT, rc=%d\n", rc);
 	return rc;
 }