diff options
Diffstat (limited to 'sys/cam/ctl/ctl_backend.h')
| -rw-r--r-- | sys/cam/ctl/ctl_backend.h | 38 |
1 files changed, 13 insertions, 25 deletions
diff --git a/sys/cam/ctl/ctl_backend.h b/sys/cam/ctl/ctl_backend.h index f5bfd83..4177e2d 100644 --- a/sys/cam/ctl/ctl_backend.h +++ b/sys/cam/ctl/ctl_backend.h @@ -1,5 +1,6 @@ /*- * Copyright (c) 2003 Silicon Graphics International Corp. + * Copyright (c) 2014-2015 Alexander Motin <mav@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -49,14 +50,11 @@ * particular LUN ID in the req_lun_id field. If we cannot allocate that * LUN ID, the ctl_add_lun() call will fail. * - * The POWERED_OFF flag tells us that the LUN should default to the powered + * The STOPPED flag tells us that the LUN should default to the powered * off state. It will return 0x04,0x02 until it is powered up. ("Logical * unit not ready, initializing command required.") * - * The INOPERABLE flag tells us that this LUN is not operable for whatever - * reason. This means that user data may have been (or has been?) lost. - * We will return 0x31,0x00 ("Medium format corrupted") until the host - * issues a FORMAT UNIT command to clear the error. + * The NO_MEDIA flag tells us that the LUN has no media inserted. * * The PRIMARY flag tells us that this LUN is registered as a Primary LUN * which is accessible via the Master shelf controller in an HA. This flag @@ -72,20 +70,22 @@ * * The DEV_TYPE flag tells us that the device_type field is filled in. * + * The EJECTED flag tells us that the removable LUN has tray open. + * * The UNMAP flag tells us that this LUN supports UNMAP. * * The OFFLINE flag tells us that this LUN can not access backing store. */ typedef enum { CTL_LUN_FLAG_ID_REQ = 0x01, - CTL_LUN_FLAG_POWERED_OFF = 0x02, - CTL_LUN_FLAG_INOPERABLE = 0x04, + CTL_LUN_FLAG_STOPPED = 0x02, + CTL_LUN_FLAG_NO_MEDIA = 0x04, CTL_LUN_FLAG_PRIMARY = 0x08, CTL_LUN_FLAG_SERIAL_NUM = 0x10, CTL_LUN_FLAG_DEVID = 0x20, CTL_LUN_FLAG_DEV_TYPE = 0x40, CTL_LUN_FLAG_UNMAP = 0x80, - CTL_LUN_FLAG_OFFLINE = 0x100, + CTL_LUN_FLAG_EJECTED = 0x100, CTL_LUN_FLAG_READONLY = 0x200 } ctl_backend_lun_flags; @@ -289,23 +289,11 @@ int ctl_start_lun(struct ctl_be_lun *be_lun); int ctl_stop_lun(struct ctl_be_lun *be_lun); /* - * If a LUN is inoperable, call ctl_lun_inoperable(). Generally the LUN - * will become operable once again when the user issues the SCSI FORMAT UNIT - * command. (CTL will automatically clear the inoperable flag.) If we - * need to re-enable the LUN, we can call ctl_lun_operable() to enable it - * without a SCSI command. - */ -int ctl_lun_inoperable(struct ctl_be_lun *be_lun); -int ctl_lun_operable(struct ctl_be_lun *be_lun); - -/* - * To take a LUN offline, call ctl_lun_offline(). Generally the LUN will - * be online again once the user sends a SCSI START STOP UNIT command with - * the start and on/offline bits set. The backend can bring the LUN back - * online via the ctl_lun_online() function, if necessary. + * Methods to notify about media and tray status changes. */ -int ctl_lun_offline(struct ctl_be_lun *be_lun); -int ctl_lun_online(struct ctl_be_lun *be_lun); +int ctl_lun_no_media(struct ctl_be_lun *be_lun); +int ctl_lun_has_media(struct ctl_be_lun *be_lun); +int ctl_lun_ejected(struct ctl_be_lun *be_lun); /* * Called on LUN HA role change. @@ -314,7 +302,7 @@ int ctl_lun_primary(struct ctl_be_lun *be_lun); int ctl_lun_secondary(struct ctl_be_lun *be_lun); /* - * Let the backend notify the initiator about changed capacity. + * Let the backend notify the initiators about changes. */ void ctl_lun_capacity_changed(struct ctl_be_lun *be_lun); |
