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[SCSI] iscsi class: add iscsi host set param event

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The iscsi class uses the set_param event to set session
and connection params. This patch adds a set_host_param
so we can set host level values.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Mike Christie
2007-05-30 12:57:11 -05:00
committed by James Bottomley
parent 2174a04ee7
commit 1d9bf13a9c
3 changed files with 37 additions and 1 deletions
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29
drivers/scsi/scsi_transport_iscsi.c
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@ -967,6 +967,30 @@ iscsi_tgt_dscvr(struct iscsi_transport *transport,
return err;
}
static int
iscsi_set_host_param(struct iscsi_transport *transport,
struct iscsi_uevent *ev)
{
char *data = (char*)ev + sizeof(*ev);
struct Scsi_Host *shost;
int err;
if (!transport->set_host_param)
return -ENOSYS;
shost = scsi_host_lookup(ev->u.set_host_param.host_no);
if (IS_ERR(shost)) {
printk(KERN_ERR "set_host_param could not find host no %u\n",
ev->u.set_host_param.host_no);
return -ENODEV;
}
err = transport->set_host_param(shost, ev->u.set_host_param.param,
data, ev->u.set_host_param.len);
scsi_host_put(shost);
return err;
}
static int
iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
@ -1058,8 +1082,11 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
case ISCSI_UEVENT_TGT_DSCVR:
err = iscsi_tgt_dscvr(transport, ev);
break;
case ISCSI_UEVENT_SET_HOST_PARAM:
err = iscsi_set_host_param(transport, ev);
break;
default:
err = -EINVAL;
err = -ENOSYS;
break;
}