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| author |   Moger, Babu <Babu.Moger@lsi.com> | 2011-04-08 11:37:40 -0600 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2011-05-01 10:45:22 -0500 |
| commit | eebe9b96dda9018cc68a2855ca506ec26a1e449e (patch) | |
| tree | b588959290f07ab41834c8c811994b7f3afd2a72 /drivers/scsi/device_handler | |
| parent | [SCSI] ipr: remove unneeded volatile declarations (diff) | |
| download | linux-dev-eebe9b96dda9018cc68a2855ca506ec26a1e449e.tar.xz linux-dev-eebe9b96dda9018cc68a2855ca506ec26a1e449e.zip | |
[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: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Yanling Qi <yanling.qi@lsi.com>
Reviewed-by: Sudhir Dachepalli <Sudhir.Dachepalli@lis.com>
Reviewed-by: Somasundaram Krishnasamy <Somasundaram.Krishnasamy@lsi.com>
Reviewed-by: Bob Stankey <Robert.Stankey@lsi.com>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/device_handler')
| -rw-r--r-- | drivers/scsi/device_handler/scsi_dh_rdac.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 293c183dfe6d..afb2fb1a5186 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -182,6 +182,12 @@ struct rdac_dh_data { struct rdac_controller *ctlr; #define UNINITIALIZED_LUN (1 << 8) 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_PASSIVE 1 unsigned char state; @@ -190,6 +196,11 @@ struct rdac_dh_data { #define RDAC_LUN_OWNED 1 #define RDAC_LUN_AVT 2 char lun_state; + +#define RDAC_PREFERRED 0 +#define RDAC_NON_PREFERRED 1 + char preferred; + unsigned char sense[SCSI_SENSE_BUFFERSIZE]; union { struct c2_inquiry c2; @@ -199,11 +210,15 @@ struct rdac_dh_data { } inq; }; +static const char *mode[] = { + "RDAC", + "AVT", + "IOSHIP", +}; static const char *lun_state[] = { "unowned", "owned", - "owned (AVT mode)", }; 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); sdev_printk(KERN_NOTICE, sdev, - "%s: LUN %d (%s)\n", - RDAC_NAME, h->lun, lun_state[(int)h->lun_state]); + "%s: LUN %d (%s) (%s)\n", + RDAC_NAME, h->lun, mode[(int)h->mode], + lun_state[(int)h->lun_state]); return 0; |