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ib_srpt: Export RDMA channel state to sysfs

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3572 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2011-06-13 12:26:51 +00:00
parent 0e3137524d
commit 46f0460602
1 changed files with 33 additions and 0 deletions
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33
srpt/src/ib_srpt.c
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@@ -3423,14 +3423,47 @@ static ssize_t show_req_lim_delta(struct kobject *kobj,
return sprintf(buf, "%d\n", ch->req_lim_delta);
}
static const char *get_ch_state_name(enum rdma_ch_state s)
{
switch (s) {
case CH_CONNECTING:
return "connecting";
case CH_LIVE:
return "live";
case CH_DISCONNECTING:
return "disconnecting";
case CH_DRAINING:
return "draining";
case CH_RELEASING:
return "releasing";
}
return "???";
}
static ssize_t show_ch_state(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
struct scst_session *scst_sess;
struct srpt_rdma_ch *ch;
scst_sess = container_of(kobj, struct scst_session, sess_kobj);
ch = scst_sess_get_tgt_priv(scst_sess);
if (!ch)
return -ENOENT;
return sprintf(buf, "%s\n", get_ch_state_name(ch->state));
}
static const struct kobj_attribute srpt_req_lim_attr =
__ATTR(req_lim, S_IRUGO, show_req_lim, NULL);
static const struct kobj_attribute srpt_req_lim_delta_attr =
__ATTR(req_lim_delta, S_IRUGO, show_req_lim_delta, NULL);
static const struct kobj_attribute srpt_ch_state_attr =
__ATTR(ch_state, S_IRUGO, show_ch_state, NULL);
static const struct attribute *srpt_sess_attrs[] = {
&srpt_req_lim_attr.attr,
&srpt_req_lim_delta_attr.attr,
&srpt_ch_state_attr.attr,
NULL
};
#endif