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Commit eebe9b96 authored by Moger, Babu's avatar Moger, Babu Committed by James Bottomley
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[SCSI] scsi_dh_rdac : Add definitions for different RDAC operating modes 



This patch adds definitions to support for different operating modes
for LSI rdac storage.  Currently, rdac support 3 operation modes.

1. RDAC mode(legacy)
2. AVT mode
3. IOSHIP mode

These definitions are used while activating the path(rdac_activate).

Signed-off-by: default avatarBabu Moger <babu.moger@lsi.com>
Reviewed-by: default avatarYanling Qi <yanling.qi@lsi.com>
Reviewed-by: default avatarSudhir Dachepalli <Sudhir.Dachepalli@lis.com>
Reviewed-by: default avatarSomasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Reviewed-by: default avatarBob Stankey <Robert.Stankey@lsi.com>
Reviewed-by: default avatarVijay Chauhan <Vijay.Chauhan@lsi.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 630ad831

drivers/scsi/device_handler/scsi_dh_rdac.c

+19 −3
Original line number Original line Diff line number Diff line
@@ -182,6 +182,12 @@ struct rdac_dh_data { 
	struct rdac_controller	*ctlr;

	struct rdac_controller	*ctlr;

#define UNINITIALIZED_LUN	(1 << 8)

#define UNINITIALIZED_LUN	(1 << 8)

	unsigned		lun;

	unsigned		lun;



#define RDAC_MODE		0

#define RDAC_MODE_AVT		1

#define RDAC_MODE_IOSHIP	2

	unsigned char		mode;



#define RDAC_STATE_ACTIVE	0

#define RDAC_STATE_ACTIVE	0

#define RDAC_STATE_PASSIVE	1

#define RDAC_STATE_PASSIVE	1

	unsigned char		state;

	unsigned char		state;
@@ -190,6 +196,11 @@ struct rdac_dh_data { 
#define RDAC_LUN_OWNED		1

#define RDAC_LUN_OWNED		1

#define RDAC_LUN_AVT		2

#define RDAC_LUN_AVT		2

	char			lun_state;

	char			lun_state;



#define RDAC_PREFERRED		0

#define RDAC_NON_PREFERRED	1

	char			preferred;



	unsigned char		sense[SCSI_SENSE_BUFFERSIZE];

	unsigned char		sense[SCSI_SENSE_BUFFERSIZE];

	union			{

	union			{

		struct c2_inquiry c2;

		struct c2_inquiry c2;
@@ -199,11 +210,15 @@ struct rdac_dh_data { 
	} inq;

	} inq;

};

};





static const char *mode[] = {

	"RDAC",

	"AVT",

	"IOSHIP",

};

static const char *lun_state[] =

static const char *lun_state[] =

{

{

	"unowned",

	"unowned",

	"owned",

	"owned",

	"owned (AVT mode)",

};

};





struct rdac_queue_data {

struct rdac_queue_data {
@@ -836,8 +851,9 @@ static int rdac_bus_attach(struct scsi_device *sdev) 
	spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);

	spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags);





	sdev_printk(KERN_NOTICE, sdev,

	sdev_printk(KERN_NOTICE, sdev,

		    "%s: LUN %d (%s)\n",

		    "%s: LUN %d (%s) (%s)\n",

		    RDAC_NAME, h->lun, lun_state[(int)h->lun_state]);

		    RDAC_NAME, h->lun, mode[(int)h->mode],

		    lun_state[(int)h->lun_state]);





	return 0;

	return 0;