svn commit: r237821 - in stable/9: sys/cam/ctl usr.sbin/ctladm
Kenneth D. Merry
ken at FreeBSD.org
Fri Jun 29 21:19:25 UTC 2012
Author: ken
Date: Fri Jun 29 21:19:24 2012
New Revision: 237821
URL: http://svn.freebsd.org/changeset/base/237821
Log:
MFC r232604:
r232604 | trasz | 2012-03-06 06:43:57 -0700 (Tue, 06 Mar 2012) | 6 lines
Add LUN resizing to CTL. Also make it possible to explicitly set
size when creating file-backed or device-backed LUN.
Reviewed by: ken (earlier version)
Sponsored by: The FreeBSD Foundation
Modified:
stable/9/sys/cam/ctl/ctl.c
stable/9/sys/cam/ctl/ctl.h
stable/9/sys/cam/ctl/ctl_backend.h
stable/9/sys/cam/ctl/ctl_backend_block.c
stable/9/sys/cam/ctl/ctl_backend_ramdisk.c
stable/9/sys/cam/ctl/ctl_error.c
stable/9/sys/cam/ctl/ctl_ioctl.h
stable/9/usr.sbin/ctladm/Makefile
stable/9/usr.sbin/ctladm/ctladm.8
stable/9/usr.sbin/ctladm/ctladm.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/usr.sbin/ctladm/ (props changed)
Modified: stable/9/sys/cam/ctl/ctl.c
==============================================================================
--- stable/9/sys/cam/ctl/ctl.c Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl.c Fri Jun 29 21:19:24 2012 (r237821)
@@ -1,7 +1,11 @@
/*-
* Copyright (c) 2003-2009 Silicon Graphics International Corp.
+ * Copyright (c) 2012 The FreeBSD Foundation
* All rights reserved.
*
+ * Portions of this software were developed by Edward Tomasz Napierala
+ * under sponsorship from the FreeBSD Foundation.
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -4797,6 +4801,25 @@ ctl_lun_power_lock(struct ctl_be_lun *be
return (0);
}
+void
+ctl_lun_capacity_changed(struct ctl_be_lun *be_lun)
+{
+ struct ctl_lun *lun;
+ struct ctl_softc *softc;
+ int i;
+
+ softc = control_softc;
+
+ mtx_lock(&softc->ctl_lock);
+
+ lun = (struct ctl_lun *)be_lun->ctl_lun;
+
+ for (i = 0; i < CTL_MAX_INITIATORS; i++)
+ lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED;
+
+ mtx_unlock(&softc->ctl_lock);
+}
+
/*
* Backend "memory move is complete" callback for requests that never
* make it down to say RAIDCore's configuration code.
Modified: stable/9/sys/cam/ctl/ctl.h
==============================================================================
--- stable/9/sys/cam/ctl/ctl.h Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl.h Fri Jun 29 21:19:24 2012 (r237821)
@@ -120,7 +120,8 @@ typedef enum {
CTL_UA_RES_PREEMPT = 0x0200,
CTL_UA_RES_RELEASE = 0x0400,
CTL_UA_REG_PREEMPT = 0x0800,
- CTL_UA_ASYM_ACC_CHANGE = 0x1000
+ CTL_UA_ASYM_ACC_CHANGE = 0x1000,
+ CTL_UA_CAPACITY_CHANGED = 0x2000
} ctl_ua_type;
#ifdef _KERNEL
Modified: stable/9/sys/cam/ctl/ctl_backend.h
==============================================================================
--- stable/9/sys/cam/ctl/ctl_backend.h Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl_backend.h Fri Jun 29 21:19:24 2012 (r237821)
@@ -280,6 +280,11 @@ int ctl_lun_power_lock(struct ctl_be_lun
int ctl_lun_offline(struct ctl_be_lun *be_lun);
int ctl_lun_online(struct ctl_be_lun *be_lun);
+/*
+ * Let the backend notify the initiator about changed capacity.
+ */
+void ctl_lun_capacity_changed(struct ctl_be_lun *be_lun);
+
#endif /* _KERNEL */
#endif /* _CTL_BACKEND_H_ */
Modified: stable/9/sys/cam/ctl/ctl_backend_block.c
==============================================================================
--- stable/9/sys/cam/ctl/ctl_backend_block.c Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl_backend_block.c Fri Jun 29 21:19:24 2012 (r237821)
@@ -1,8 +1,12 @@
/*-
* Copyright (c) 2003 Silicon Graphics International Corp.
* Copyright (c) 2009-2011 Spectra Logic Corporation
+ * Copyright (c) 2012 The FreeBSD Foundation
* All rights reserved.
*
+ * Portions of this software were developed by Edward Tomasz Napierala
+ * under sponsorship from the FreeBSD Foundation.
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -250,6 +254,12 @@ static int ctl_be_block_create(struct ct
struct ctl_lun_req *req);
static int ctl_be_block_rm(struct ctl_be_block_softc *softc,
struct ctl_lun_req *req);
+static int ctl_be_block_modify_file(struct ctl_be_block_lun *be_lun,
+ struct ctl_lun_req *req);
+static int ctl_be_block_modify_dev(struct ctl_be_block_lun *be_lun,
+ struct ctl_lun_req *req);
+static int ctl_be_block_modify(struct ctl_be_block_softc *softc,
+ struct ctl_lun_req *req);
static void ctl_be_block_lun_shutdown(void *be_lun);
static void ctl_be_block_lun_config_status(void *be_lun,
ctl_lun_config_status status);
@@ -1263,6 +1273,9 @@ ctl_be_block_ioctl(struct cdev *dev, u_l
case CTL_LUNREQ_RM:
error = ctl_be_block_rm(softc, lun_req);
break;
+ case CTL_LUNREQ_MODIFY:
+ error = ctl_be_block_modify(softc, lun_req);
+ break;
default:
lun_req->status = CTL_LUN_ERROR;
snprintf(lun_req->error_str, sizeof(lun_req->error_str),
@@ -1321,7 +1334,10 @@ ctl_be_block_open_file(struct ctl_be_blo
file_data->cred = crhold(curthread->td_ucred);
- be_lun->size_bytes = vattr.va_size;
+ if (params->lun_size_bytes != 0)
+ be_lun->size_bytes = params->lun_size_bytes;
+ else
+ be_lun->size_bytes = vattr.va_size;
/*
* We set the multi thread flag for file operations because all
* filesystems (in theory) are capable of allowing multiple readers
@@ -1446,15 +1462,27 @@ ctl_be_block_open_dev(struct ctl_be_bloc
curthread);
if (error) {
snprintf(req->error_str, sizeof(req->error_str),
- "%s: error %d returned for DIOCGMEDIASIZE ioctl "
- "on %s!", __func__, error, be_lun->dev_path);
+ "%s: error %d returned for DIOCGMEDIASIZE "
+ " ioctl on %s!", __func__, error,
+ be_lun->dev_path);
return (error);
}
- return (0);
+ if (params->lun_size_bytes != 0) {
+ if (params->lun_size_bytes > be_lun->size_bytes) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: requested LUN size %ju > backing device "
+ "size %ju", __func__,
+ (uintmax_t)params->lun_size_bytes,
+ (uintmax_t)be_lun->size_bytes);
+ return (EINVAL);
+ }
-}
+ be_lun->size_bytes = params->lun_size_bytes;
+ }
+ return (0);
+}
static int
ctl_be_block_close(struct ctl_be_block_lun *be_lun)
@@ -1599,7 +1627,6 @@ ctl_be_block_open(struct ctl_be_block_so
be_lun->size_blocks = be_lun->size_bytes >> be_lun->blocksize_shift;
return (0);
-
}
static int
@@ -2007,6 +2034,155 @@ bailout_error:
return (0);
}
+static int
+ctl_be_block_modify_file(struct ctl_be_block_lun *be_lun,
+ struct ctl_lun_req *req)
+{
+ struct vattr vattr;
+ int error;
+ struct ctl_lun_modify_params *params;
+
+ params = &req->reqdata.modify;
+
+ if (params->lun_size_bytes != 0) {
+ be_lun->size_bytes = params->lun_size_bytes;
+ } else {
+ error = VOP_GETATTR(be_lun->vn, &vattr, curthread->td_ucred);
+ if (error != 0) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "error calling VOP_GETATTR() for file %s",
+ be_lun->dev_path);
+ return (error);
+ }
+
+ be_lun->size_bytes = vattr.va_size;
+ }
+
+ return (0);
+}
+
+static int
+ctl_be_block_modify_dev(struct ctl_be_block_lun *be_lun,
+ struct ctl_lun_req *req)
+{
+ struct cdev *dev;
+ struct cdevsw *devsw;
+ int error;
+ struct ctl_lun_modify_params *params;
+ uint64_t size_bytes;
+
+ params = &req->reqdata.modify;
+
+ dev = be_lun->vn->v_rdev;
+ devsw = dev->si_devsw;
+ if (!devsw->d_ioctl) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: no d_ioctl for device %s!", __func__,
+ be_lun->dev_path);
+ return (ENODEV);
+ }
+
+ error = devsw->d_ioctl(dev, DIOCGMEDIASIZE,
+ (caddr_t)&size_bytes, FREAD,
+ curthread);
+ if (error) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: error %d returned for DIOCGMEDIASIZE ioctl "
+ "on %s!", __func__, error, be_lun->dev_path);
+ return (error);
+ }
+
+ if (params->lun_size_bytes != 0) {
+ if (params->lun_size_bytes > size_bytes) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: requested LUN size %ju > backing device "
+ "size %ju", __func__,
+ (uintmax_t)params->lun_size_bytes,
+ (uintmax_t)size_bytes);
+ return (EINVAL);
+ }
+
+ be_lun->size_bytes = params->lun_size_bytes;
+ } else {
+ be_lun->size_bytes = size_bytes;
+ }
+
+ return (0);
+}
+
+static int
+ctl_be_block_modify(struct ctl_be_block_softc *softc, struct ctl_lun_req *req)
+{
+ struct ctl_lun_modify_params *params;
+ struct ctl_be_block_lun *be_lun;
+ int vfs_is_locked, error;
+
+ params = &req->reqdata.modify;
+
+ mtx_lock(&softc->lock);
+
+ be_lun = NULL;
+
+ STAILQ_FOREACH(be_lun, &softc->lun_list, links) {
+ if (be_lun->ctl_be_lun.lun_id == params->lun_id)
+ break;
+ }
+ mtx_unlock(&softc->lock);
+
+ if (be_lun == NULL) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: LUN %u is not managed by the block backend",
+ __func__, params->lun_id);
+ goto bailout_error;
+ }
+
+ if (params->lun_size_bytes != 0) {
+ if (params->lun_size_bytes < be_lun->blocksize) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: LUN size %ju < blocksize %u", __func__,
+ params->lun_size_bytes, be_lun->blocksize);
+ goto bailout_error;
+ }
+ }
+
+ vfs_is_locked = VFS_LOCK_GIANT(be_lun->vn->v_mount);
+ vn_lock(be_lun->vn, LK_SHARED | LK_RETRY);
+
+ if (be_lun->vn->v_type == VREG)
+ error = ctl_be_block_modify_file(be_lun, req);
+ else
+ error = ctl_be_block_modify_dev(be_lun, req);
+
+ VOP_UNLOCK(be_lun->vn, 0);
+ VFS_UNLOCK_GIANT(vfs_is_locked);
+
+ if (error != 0)
+ goto bailout_error;
+
+ be_lun->size_blocks = be_lun->size_bytes >> be_lun->blocksize_shift;
+
+ /*
+ * The maximum LBA is the size - 1.
+ *
+ * XXX: Note that this field is being updated without locking,
+ * which might cause problems on 32-bit architectures.
+ */
+ be_lun->ctl_be_lun.maxlba = be_lun->size_blocks - 1;
+ ctl_lun_capacity_changed(&be_lun->ctl_be_lun);
+
+ /* Tell the user the exact size we ended up using */
+ params->lun_size_bytes = be_lun->size_bytes;
+
+ req->status = CTL_LUN_OK;
+
+ return (0);
+
+bailout_error:
+ req->status = CTL_LUN_ERROR;
+
+ return (0);
+}
+
static void
ctl_be_block_lun_shutdown(void *be_lun)
{
Modified: stable/9/sys/cam/ctl/ctl_backend_ramdisk.c
==============================================================================
--- stable/9/sys/cam/ctl/ctl_backend_ramdisk.c Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl_backend_ramdisk.c Fri Jun 29 21:19:24 2012 (r237821)
@@ -1,7 +1,11 @@
/*-
* Copyright (c) 2003, 2008 Silicon Graphics International Corp.
+ * Copyright (c) 2012 The FreeBSD Foundation
* All rights reserved.
*
+ * Portions of this software were developed by Edward Tomasz Napierala
+ * under sponsorship from the FreeBSD Foundation.
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -102,6 +106,8 @@ static int ctl_backend_ramdisk_rm(struct
struct ctl_lun_req *req);
static int ctl_backend_ramdisk_create(struct ctl_be_ramdisk_softc *softc,
struct ctl_lun_req *req, int do_wait);
+static int ctl_backend_ramdisk_modify(struct ctl_be_ramdisk_softc *softc,
+ struct ctl_lun_req *req);
static void ctl_backend_ramdisk_lun_shutdown(void *be_lun);
static void ctl_backend_ramdisk_lun_config_status(void *be_lun,
ctl_lun_config_status status);
@@ -376,6 +382,9 @@ ctl_backend_ramdisk_ioctl(struct cdev *d
case CTL_LUNREQ_RM:
retval = ctl_backend_ramdisk_rm(softc, lun_req);
break;
+ case CTL_LUNREQ_MODIFY:
+ retval = ctl_backend_ramdisk_modify(softc, lun_req);
+ break;
default:
lun_req->status = CTL_LUN_ERROR;
snprintf(lun_req->error_str, sizeof(lun_req->error_str),
@@ -666,6 +675,73 @@ bailout_error:
return (retval);
}
+static int
+ctl_backend_ramdisk_modify(struct ctl_be_ramdisk_softc *softc,
+ struct ctl_lun_req *req)
+{
+ struct ctl_be_ramdisk_lun *be_lun;
+ struct ctl_lun_modify_params *params;
+ uint32_t blocksize;
+
+ params = &req->reqdata.modify;
+
+ be_lun = NULL;
+
+ mtx_lock(&softc->lock);
+ STAILQ_FOREACH(be_lun, &softc->lun_list, links) {
+ if (be_lun->ctl_be_lun.lun_id == params->lun_id)
+ break;
+ }
+ mtx_unlock(&softc->lock);
+
+ if (be_lun == NULL) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: LUN %u is not managed by the ramdisk backend",
+ __func__, params->lun_id);
+ goto bailout_error;
+ }
+
+ if (params->lun_size_bytes == 0) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: LUN size \"auto\" not supported "
+ "by the ramdisk backend", __func__);
+ goto bailout_error;
+ }
+
+ blocksize = be_lun->ctl_be_lun.blocksize;
+
+ if (params->lun_size_bytes < blocksize) {
+ snprintf(req->error_str, sizeof(req->error_str),
+ "%s: LUN size %ju < blocksize %u", __func__,
+ params->lun_size_bytes, blocksize);
+ goto bailout_error;
+ }
+
+ be_lun->size_blocks = params->lun_size_bytes / blocksize;
+ be_lun->size_bytes = be_lun->size_blocks * blocksize;
+
+ /*
+ * The maximum LBA is the size - 1.
+ *
+ * XXX: Note that this field is being updated without locking,
+ * which might cause problems on 32-bit architectures.
+ */
+ be_lun->ctl_be_lun.maxlba = be_lun->size_blocks - 1;
+ ctl_lun_capacity_changed(&be_lun->ctl_be_lun);
+
+ /* Tell the user the exact size we ended up using */
+ params->lun_size_bytes = be_lun->size_bytes;
+
+ req->status = CTL_LUN_OK;
+
+ return (0);
+
+bailout_error:
+ req->status = CTL_LUN_ERROR;
+
+ return (0);
+}
+
static void
ctl_backend_ramdisk_lun_shutdown(void *be_lun)
{
Modified: stable/9/sys/cam/ctl/ctl_error.c
==============================================================================
--- stable/9/sys/cam/ctl/ctl_error.c Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl_error.c Fri Jun 29 21:19:24 2012 (r237821)
@@ -454,6 +454,11 @@ ctl_build_ua(ctl_ua_type ua_type, struct
asc = 0x2A;
ascq = 0x06;
break;
+ case CTL_UA_CAPACITY_CHANGED:
+ /* 2Ah/09n CAPACITY DATA HAS CHANGED */
+ asc = 0x2A;
+ ascq = 0x09;
+ break;
default:
ua_to_build = CTL_UA_NONE;
return (ua_to_build);
Modified: stable/9/sys/cam/ctl/ctl_ioctl.h
==============================================================================
--- stable/9/sys/cam/ctl/ctl_ioctl.h Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/sys/cam/ctl/ctl_ioctl.h Fri Jun 29 21:19:24 2012 (r237821)
@@ -397,7 +397,8 @@ struct ctl_be_arg {
typedef enum {
CTL_LUNREQ_CREATE,
- CTL_LUNREQ_RM
+ CTL_LUNREQ_RM,
+ CTL_LUNREQ_MODIFY,
} ctl_lunreq_type;
@@ -471,12 +472,27 @@ struct ctl_lun_rm_params {
};
/*
+ * LUN modification parameters:
+ *
+ * lun_id: The number of the LUN to modify. This must be set.
+ * The LUN must be backed by the given backend.
+ *
+ * lun_size_bytes: The size of the LUN in bytes. If zero, update
+ * the size using the backing file size, if possible.
+ */
+struct ctl_lun_modify_params {
+ uint32_t lun_id;
+ uint64_t lun_size_bytes;
+};
+
+/*
* Union of request type data. Fill in the appropriate union member for
* the request type.
*/
union ctl_lunreq_data {
struct ctl_lun_create_params create;
struct ctl_lun_rm_params rm;
+ struct ctl_lun_modify_params modify;
};
/*
Modified: stable/9/usr.sbin/ctladm/Makefile
==============================================================================
--- stable/9/usr.sbin/ctladm/Makefile Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/usr.sbin/ctladm/Makefile Fri Jun 29 21:19:24 2012 (r237821)
@@ -14,8 +14,8 @@ CFLAGS+= -I${SDIR}
WARNS?= 3
.endif
-DPADD= ${LIBCAM} ${LIBSBUF}
-LDADD= -lcam -lsbuf -lbsdxml
+DPADD= ${LIBCAM} ${LIBSBUF} ${LIBBSDXML} ${LIBUTIL}
+LDADD= -lcam -lsbuf -lbsdxml -lutil
MAN= ctladm.8
.include <bsd.prog.mk>
Modified: stable/9/usr.sbin/ctladm/ctladm.8
==============================================================================
--- stable/9/usr.sbin/ctladm/ctladm.8 Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/usr.sbin/ctladm/ctladm.8 Fri Jun 29 21:19:24 2012 (r237821)
@@ -34,7 +34,7 @@
.\" $Id: //depot/users/kenm/FreeBSD-test2/usr.sbin/ctladm/ctladm.8#3 $
.\" $FreeBSD$
.\"
-.Dd July 8, 2011
+.Dd March 6, 2012
.Dt CTLADM 8
.Os
.Sh NAME
@@ -173,6 +173,11 @@
.Aq Fl l Ar lun_id
.Op Fl o Ar name=value
.Nm
+.Ic modify
+.Aq Fl b Ar backend
+.Aq Fl l Ar lun_id
+.Aq Fl s Ar size_bytes
+.Nm
.Ic devlist
.Op Fl b Ar backend
.Op Fl v
@@ -830,6 +835,27 @@ Multiple
arguments may be specified.
Refer to the backend documentation for arguments that may be used.
.El
+.It Ic modify
+Modify a LUN size.
+The backend, the LUN number, and the size must be specified.
+.Bl -tag -width 14n
+.It Fl b Ar backend
+Specify the backend that owns the LUN to be removed.
+Examples are
+.Dq ramdisk
+and
+.Dq block .
+.It Fl l Ar lun_id
+Specify the LUN number to remove.
+.It Fl s Ar size_bytes
+Specify the size of the LUN in bytes.
+For the
+.Dq block
+backend, an
+.Dq auto
+keyword may be passed instead; this will make CTL use the size of backing
+file or device.
+.El
.It Ic devlist
Get a list of all configured LUNs.
This also includes the LUN size and blocksize, serial number and device ID.
Modified: stable/9/usr.sbin/ctladm/ctladm.c
==============================================================================
--- stable/9/usr.sbin/ctladm/ctladm.c Fri Jun 29 20:15:00 2012 (r237820)
+++ stable/9/usr.sbin/ctladm/ctladm.c Fri Jun 29 21:19:24 2012 (r237821)
@@ -1,8 +1,12 @@
/*-
* Copyright (c) 2003, 2004 Silicon Graphics International Corp.
* Copyright (c) 1997-2007 Kenneth D. Merry
+ * Copyright (c) 2012 The FreeBSD Foundation
* All rights reserved.
*
+ * Portions of this software were developed by Edward Tomasz Napierala
+ * under sponsorship from the FreeBSD Foundation.
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -68,6 +72,7 @@ __FBSDID("$FreeBSD$");
#include <cam/ctl/ctl_util.h>
#include <cam/ctl/ctl_scsi_all.h>
#include <camlib.h>
+#include <libutil.h>
#include "ctladm.h"
#ifdef min
@@ -110,7 +115,8 @@ typedef enum {
CTLADM_CMD_PRES_IN,
CTLADM_CMD_PRES_OUT,
CTLADM_CMD_INQ_VPD_DEVID,
- CTLADM_CMD_RTPG
+ CTLADM_CMD_RTPG,
+ CTLADM_CMD_MODIFY
} ctladm_cmdfunction;
typedef enum {
@@ -175,6 +181,7 @@ struct ctladm_opts option_table[] = {
{"inquiry", CTLADM_CMD_INQUIRY, CTLADM_ARG_NEED_TL, NULL},
{"lunlist", CTLADM_CMD_LUNLIST, CTLADM_ARG_NONE, NULL},
{"modesense", CTLADM_CMD_MODESENSE, CTLADM_ARG_NEED_TL, "P:S:dlm:c:"},
+ {"modify", CTLADM_CMD_MODIFY, CTLADM_ARG_NONE, "b:l:s:"},
{"port", CTLADM_CMD_PORT, CTLADM_ARG_NONE, "lo:p:qt:w:W:x"},
{"prin", CTLADM_CMD_PRES_IN, CTLADM_ARG_NEED_TL, "a:"},
{"prout", CTLADM_CMD_PRES_OUT, CTLADM_ARG_NEED_TL, "a:k:r:s:"},
@@ -249,6 +256,7 @@ static int cctl_create_lun(int fd, int a
static int cctl_inquiry_vpd_devid(int fd, int target, int lun, int initiator);
static int cctl_report_target_port_group(int fd, int target, int lun,
int initiator);
+static int cctl_modify_lun(int fd, int argc, char **argv, char *combinedopt);
ctladm_optret
getoption(struct ctladm_opts *table, char *arg, uint32_t *cmdnum,
@@ -3043,7 +3051,15 @@ cctl_create_lun(int fd, int argc, char *
break;
}
case 's':
- lun_size = strtoull(optarg, NULL, 0);
+ if (strcasecmp(optarg, "auto") != 0) {
+ retval = expand_number(optarg, &lun_size);
+ if (retval != 0) {
+ warn("%s: invalid -s argument",
+ __func__);
+ retval = 1;
+ goto bailout;
+ }
+ }
lun_size_set = 1;
break;
case 'S':
@@ -3287,12 +3303,12 @@ cctl_rm_lun(int fd, int argc, char **arg
}
if (req.status == CTL_LUN_ERROR) {
- warnx("%s: error returned from LUN creation request:\n%s",
+ warnx("%s: error returned from LUN removal request:\n%s",
__func__, req.error_str);
retval = 1;
goto bailout;
} else if (req.status != CTL_LUN_OK) {
- warnx("%s: unknown LUN creation request status %d",
+ warnx("%s: unknown LUN removal request status %d",
__func__, req.status);
retval = 1;
goto bailout;
@@ -3304,6 +3320,84 @@ bailout:
return (retval);
}
+static int
+cctl_modify_lun(int fd, int argc, char **argv, char *combinedopt)
+{
+ struct ctl_lun_req req;
+ uint64_t lun_size = 0;
+ uint32_t lun_id = 0;
+ int lun_id_set = 0, lun_size_set = 0;
+ char *backend_name = NULL;
+ int retval = 0, c;
+
+ while ((c = getopt(argc, argv, combinedopt)) != -1) {
+ switch (c) {
+ case 'b':
+ backend_name = strdup(optarg);
+ break;
+ case 'l':
+ lun_id = strtoul(optarg, NULL, 0);
+ lun_id_set = 1;
+ break;
+ case 's':
+ if (strcasecmp(optarg, "auto") != 0) {
+ retval = expand_number(optarg, &lun_size);
+ if (retval != 0) {
+ warn("%s: invalid -s argument",
+ __func__);
+ retval = 1;
+ goto bailout;
+ }
+ }
+ lun_size_set = 1;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (backend_name == NULL)
+ errx(1, "%s: backend name (-b) must be specified", __func__);
+
+ if (lun_id_set == 0)
+ errx(1, "%s: LUN id (-l) must be specified", __func__);
+
+ if (lun_size_set == 0)
+ errx(1, "%s: size (-s) must be specified", __func__);
+
+ bzero(&req, sizeof(req));
+
+ strlcpy(req.backend, backend_name, sizeof(req.backend));
+ req.reqtype = CTL_LUNREQ_MODIFY;
+
+ req.reqdata.modify.lun_id = lun_id;
+ req.reqdata.modify.lun_size_bytes = lun_size;
+
+ if (ioctl(fd, CTL_LUN_REQ, &req) == -1) {
+ warn("%s: error issuing CTL_LUN_REQ ioctl", __func__);
+ retval = 1;
+ goto bailout;
+ }
+
+ if (req.status == CTL_LUN_ERROR) {
+ warnx("%s: error returned from LUN modification request:\n%s",
+ __func__, req.error_str);
+ retval = 1;
+ goto bailout;
+ } else if (req.status != CTL_LUN_OK) {
+ warnx("%s: unknown LUN modification request status %d",
+ __func__, req.status);
+ retval = 1;
+ goto bailout;
+ }
+
+ printf("LUN %d modified successfully\n", lun_id);
+
+bailout:
+ return (retval);
+}
+
+
/*
* Name/value pair used for per-LUN attributes.
*/
@@ -3599,6 +3693,7 @@ usage(int error)
" [-l lun_id] [-o name=value] [-s size_bytes]\n"
" [-S serial_num] [-t dev_type]\n"
" ctladm remove <-b backend> <-l lun_id> [-o name=value]\n"
+" ctladm modify <-b backend> <-l lun_id> <-s size_bytes>\n"
" ctladm devlist [-b][-v][-x]\n"
" ctladm shutdown\n"
" ctladm startup\n"
@@ -3983,6 +4078,9 @@ main(int argc, char **argv)
case CTLADM_CMD_RTPG:
retval = cctl_report_target_port_group(fd, target, lun, initid);
break;
+ case CTLADM_CMD_MODIFY:
+ retval = cctl_modify_lun(fd, argc, argv, combinedopt);
+ break;
case CTLADM_CMD_HELP:
default:
usage(retval);
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