From 77c9df9644d7c35516770a21cb56b413e8547d8f Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 3 Mar 2016 07:54:07 +0100 Subject: scsi: Add 'access_state' and 'preferred_path' attribute Add an 'access_state' field to struct scsi_device and display them in sysfs as 'access_state' and 'preferred_path' attribute. Signed-off-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Reviewed-by: Bart van Assche Signed-off-by: Martin K. Petersen --- include/scsi/scsi_proto.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/scsi/scsi_proto.h') diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h index a9fbf1b38e71..c2ae21cbaa2c 100644 --- a/include/scsi/scsi_proto.h +++ b/include/scsi/scsi_proto.h @@ -277,5 +277,17 @@ struct scsi_lun { __u8 scsi_lun[8]; }; +/* SPC asymmetric access states */ +#define SCSI_ACCESS_STATE_OPTIMAL 0x00 +#define SCSI_ACCESS_STATE_ACTIVE 0x01 +#define SCSI_ACCESS_STATE_STANDBY 0x02 +#define SCSI_ACCESS_STATE_UNAVAILABLE 0x03 +#define SCSI_ACCESS_STATE_LBA 0x04 +#define SCSI_ACCESS_STATE_OFFLINE 0x0e +#define SCSI_ACCESS_STATE_TRANSITIONING 0x0f + +/* Values for REPORT TARGET GROUP STATES */ +#define SCSI_ACCESS_STATE_MASK 0x0f +#define SCSI_ACCESS_STATE_PREFERRED 0x80 #endif /* _SCSI_PROTO_H_ */ -- cgit