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scst_local: Make the SCSI host number available in sysfs

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An example for the following SCST configuration:

TARGET_DRIVER scst_local {
	TARGET scst_local_tgt {
		session_name scst_local_host

		LUN 0 dummy
		LUN 1 test1
		LUN 2 test2
	}
}
    
$ cat /sys/kernel/scst_tgt/targets/scst_local/scst_local_tgt/sessions/scst_local_host/host_no
9


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9488 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2021-08-14 03:24:11 +00:00
parent d6a342b373
commit 84d335f131
1 changed files with 14 additions and 0 deletions
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14
scst_local/scst_local.c
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@@ -483,6 +483,19 @@ static const struct attribute *scst_local_tgt_attrs[] = {
** Session attributes
**/
static ssize_t host_no_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
struct scst_session *scst_sess =
container_of(kobj, struct scst_session, sess_kobj);
struct scst_local_sess *sess = scst_sess_get_tgt_priv(scst_sess);
struct Scsi_Host *host = sess->shost;
return host ? snprintf(buf, PAGE_SIZE, "%u\n", host->host_no) : -EINVAL;
}
static struct kobj_attribute scst_local_host_no_attr = __ATTR_RO(host_no);
static ssize_t scst_local_transport_id_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
@@ -571,6 +584,7 @@ static struct kobj_attribute scst_local_transport_id_attr =
scst_local_transport_id_store);
static const struct attribute *scst_local_sess_attrs[] = {
&scst_local_host_no_attr.attr,
&scst_local_transport_id_attr.attr,
NULL,
};