mirrors/scst
1
0
Fork 0
mirror of https://github.com/SCST-project/scst.git synced 2026-05-18 11:11:27 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge of the trunk's r3131:

Browse Source 
Making creation of default target and session by default



git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.0.0.x@3133 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2010-12-18 15:57:34 +00:00
parent efe33340f2
commit 3a01db3279
2 changed files with 43 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
scst_local/README
View File

@@ -32,7 +32,7 @@ Here is how I have used it so far:
3. Load the scst_local driver:
insmod scst_local add_default_tgt=1
insmod scst_local
echo "add vm_disk1 0" >/sys/kernel/scst_tgt/targets/scst_local/scst_local_tgt/luns/mgmt
4. Check what you have
@@ -49,14 +49,44 @@ Here is how I have used it so far:
Vendor: SCST_FIO Model: vm_disk1 Rev: 200
Type: Direct-Access ANSI SCSI revision: 04
Or for (3) you can:
Or instead of manually "add_device" in (2) and step (3) write a
scstadmin config:
HANDLER vdisk_fileio {
DEVICE vm_disk1 {
filename /some/path/vdisk1.img
}
}
TARGET_DRIVER scst_local {
TARGET scst_local_tgt {
LUN 0 vm_disk1
}
}
then:
insmod scst_local
scstadmin -config conf_file.cfg
More advanced examples:
For (3) you can:
insmod scst_local add_default_tgt=0
echo "add_target scst_local_tgt session_name=scst_local_host" >/sys/kernel/scst_tgt/targets/scst_local//mgmt
echo "add vm_disk1 0" >/sys/kernel/scst_tgt/targets/scst_local/scst_local_tgt/luns/mgmt
Or instead of manually "add_device" in (2) and step (3) write a
scstadmin config:
Scst_local module's parameter add_default_tgt disables creation of
default target "scst_local_tgt" and session "scst_local_host", so you
needed to create it manually.
There can be any number of targets and sessions created. Each SCST
session corresponds to SCSI host. You can change which LUNs assigned to
each session by using SCST access control. This mode is intended for
user space target drivers (see below).
Alternatively, you can write an scstadmin's config file conf_file.cfg:
HANDLER vdisk_fileio {
DEVICE vm_disk1 {
@@ -74,12 +104,14 @@ TARGET_DRIVER scst_local {
then:
insmod scst_local
insmod scst_local add_default_tgt=0
scstadmin -config conf_file.cfg
There can be any number of targets and sessions created. Each SCST
session corresponds to SCSI host. You can change which LUNs assigned to
each session by using SCST access control.
NOTE! Although scstadmin allows to create scst_local's sessions using
"session_name" expression, it doesn't save existing sessions during
writing config file by "write_config" command. If you need this
functionality, feel free to send a request for it in SCST development
mailing list.
5. Have fun.

6
scst_local/scst_local.c
View File

@@ -99,12 +99,12 @@ static atomic_t num_target_resets = ATOMIC_INIT(0);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31) \
|| defined(RHEL_MAJOR) && RHEL_MAJOR -0 <= 5
static int scst_local_add_default_tgt;
static int scst_local_add_default_tgt = true;
#else
static bool scst_local_add_default_tgt;
static bool scst_local_add_default_tgt = true;
#endif
module_param_named(add_default_tgt, scst_local_add_default_tgt, bool, S_IRUGO);
MODULE_PARM_DESC(add_default_tgt, "add or not (default) on start default "
MODULE_PARM_DESC(add_default_tgt, "add (default) or not on start default "
"target scst_local_tgt with default session scst_local_host");
struct scst_aen_work_item {