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Commit 714f5177 authored by sumit.saxena@avagotech.com's avatar sumit.saxena@avagotech.com Committed by Martin K. Petersen
Browse files

megaraid_sas: Print critical firmware event messages 



Print firmware events in human-readable form. This will help users track
any critical firmware events without special application support.

Sample syslogd output:

megaraid_sas 0000:02:00.0: 8619 (491648347s/0x0020/WARN) - Controller temperature threshold exceeded. This may indicate inadequate system cooling. Switching to low performance mode.

The format of logged events is:

"<pci_dev_id>: <sequence_number> (<timestamp>/<locale>/<class>) - <description>"

Signed-off-by: default avatarSumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: default avatarKashyap Desai <kashyap.desai@avagotech.com>
Reviewed-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 79b82c2c

drivers/scsi/megaraid/megaraid_sas.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -273,6 +273,16 @@ enum MFI_STAT { 
	MFI_STAT_INVALID_STATUS = 0xFF

	MFI_STAT_INVALID_STATUS = 0xFF

};

};





enum mfi_evt_class {

	MFI_EVT_CLASS_DEBUG =		-2,

	MFI_EVT_CLASS_PROGRESS =	-1,

	MFI_EVT_CLASS_INFO =		0,

	MFI_EVT_CLASS_WARNING =		1,

	MFI_EVT_CLASS_CRITICAL =	2,

	MFI_EVT_CLASS_FATAL =		3,

	MFI_EVT_CLASS_DEAD =		4

};



/*

/*

 * Crash dump related defines

 * Crash dump related defines

 */

 */

drivers/scsi/megaraid/megaraid_sas_base.c

+61 −0
Original line number Original line Diff line number Diff line
@@ -260,6 +260,66 @@ megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd) 




}

}





static const char *

format_timestamp(uint32_t timestamp)

{

	static char buffer[32];



	if ((timestamp & 0xff000000) == 0xff000000)

		snprintf(buffer, sizeof(buffer), "boot + %us", timestamp &

		0x00ffffff);

	else

		snprintf(buffer, sizeof(buffer), "%us", timestamp);

	return buffer;

}



static const char *

format_class(int8_t class)

{

	static char buffer[6];



	switch (class) {

	case MFI_EVT_CLASS_DEBUG:

		return "debug";

	case MFI_EVT_CLASS_PROGRESS:

		return "progress";

	case MFI_EVT_CLASS_INFO:

		return "info";

	case MFI_EVT_CLASS_WARNING:

		return "WARN";

	case MFI_EVT_CLASS_CRITICAL:

		return "CRIT";

	case MFI_EVT_CLASS_FATAL:

		return "FATAL";

	case MFI_EVT_CLASS_DEAD:

		return "DEAD";

	default:

		snprintf(buffer, sizeof(buffer), "%d", class);

		return buffer;

	}

}



/**

  * megasas_decode_evt: Decode FW AEN event and print critical event

  * for information.

  * @instance:			Adapter soft state

  */

static void

megasas_decode_evt(struct megasas_instance *instance)

{

	struct megasas_evt_detail *evt_detail = instance->evt_detail;

	union megasas_evt_class_locale class_locale;

	class_locale.word = le32_to_cpu(evt_detail->cl.word);



	if (class_locale.members.class >= MFI_EVT_CLASS_CRITICAL)

		dev_info(&instance->pdev->dev, "%d (%s/0x%04x/%s) - %s\n",

			le32_to_cpu(evt_detail->seq_num),

			format_timestamp(le32_to_cpu(evt_detail->time_stamp)),

			(class_locale.members.locale),

			format_class(class_locale.members.class),

			evt_detail->description);

}



/**

/**

*	The following functions are defined for xscale

*	The following functions are defined for xscale

*	(deviceid : 1064R, PERC5) controllers

*	(deviceid : 1064R, PERC5) controllers
@@ -6602,6 +6662,7 @@ megasas_aen_polling(struct work_struct *work) 
	instance->ev = NULL;

	instance->ev = NULL;

	host = instance->host;

	host = instance->host;

	if (instance->evt_detail) {

	if (instance->evt_detail) {

		megasas_decode_evt(instance);





		switch (le32_to_cpu(instance->evt_detail->code)) {

		switch (le32_to_cpu(instance->evt_detail->code)) {

		case MR_EVT_PD_INSERTED:

		case MR_EVT_PD_INSERTED: