Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1d9bf13a9cf91f8faf221e98a64dd1157bcf5fa9
Commit: 1d9bf13a9cf91f8faf221e98a64dd1157bcf5fa9
Parent: 2174a04ee7d8304a270de183fbc58b36dd05b395
Author: Mike Christie <[EMAIL PROTECTED]>
AuthorDate: Wed May 30 12:57:11 2007 -0500
Committer: James Bottomley <[EMAIL PROTECTED](none)>
CommitDate: Fri Jun 1 12:51:03 2007 -0400
[SCSI] iscsi class: add iscsi host set param event
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 <[EMAIL PROTECTED]>
Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
---
drivers/scsi/scsi_transport_iscsi.c | 29 ++++++++++++++++++++++++++++-
include/scsi/iscsi_if.h | 6 ++++++
include/scsi/scsi_transport_iscsi.h | 3 +++
3 files changed, 37 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/scsi_transport_iscsi.c
b/drivers/scsi/scsi_transport_iscsi.c
index 5928760..3fd2da4 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -968,6 +968,30 @@ iscsi_tgt_dscvr(struct iscsi_transport *transport,
}
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)
{
int err = 0;
@@ -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;
}
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index fba2117..3d0372e 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -48,6 +48,7 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT = UEVENT_BASE + 14,
ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15,
+ ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
@@ -136,6 +137,11 @@ struct iscsi_uevent {
*/
uint32_t enable;
} tgt_dscvr;
+ struct msg_set_host_param {
+ uint32_t host_no;
+ uint32_t param; /* enum iscsi_host_param */
+ uint32_t len;
+ } set_host_param;
} u;
union {
/* messages k -> u */
diff --git a/include/scsi/scsi_transport_iscsi.h
b/include/scsi/scsi_transport_iscsi.h
index 902e69f..1ac450b 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -108,6 +108,9 @@ struct iscsi_transport {
enum iscsi_param param, char *buf);
int (*get_host_param) (struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf);
+ int (*set_host_param) (struct Scsi_Host *shost,
+ enum iscsi_host_param param, char *buf,
+ int buflen);
int (*send_pdu) (struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
char *data, uint32_t data_size);
void (*get_stats) (struct iscsi_cls_conn *conn,
-
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