From: michaelc@cs.wisc.edu
To: linux-scsi@vger.kernel.org
Cc: Mike Christie <michaelc@cs.wisc.edu>
Subject: [PATCH 5/19] iscsi class: add iscsi host set param event
Date: Wed, 30 May 2007 12:57:11 -0500 [thread overview]
Message-ID: <11805478511328-git-send-email-michaelc@cs.wisc.edu> (raw)
In-Reply-To: <1180547849438-git-send-email-michaelc@cs.wisc.edu>
From: Mike Christie <michaelc@cs.wisc.edu>
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>
---
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 *
}
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, s
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,
--
1.4.1.1
next prev parent reply other threads:[~2007-05-30 17:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-30 17:57 iscsi features bugfixes michaelc
2007-05-30 17:57 ` [PATCH 1/19] Check iscsi interface skb allocation return value michaelc
2007-05-30 17:57 ` [PATCH 2/19] iscsi class: export hw address michaelc
2007-05-30 17:57 ` [PATCH 3/19] qla4xxx: export mac as " michaelc
2007-05-30 17:57 ` [PATCH 4/19] iscsi class, qla4xxx: have class lookup host for drivers michaelc
2007-05-30 17:57 ` michaelc [this message]
2007-05-30 17:57 ` [PATCH 6/19] libiscsi, iscsi_tcp, ib_iser : add sw iscsi host get/set params helpers michaelc
2007-05-30 17:57 ` [PATCH 7/19] iscsi class, qla4xxx, iscsi_tcp, ib_iser: export/set initiator name michaelc
2007-05-30 17:57 ` [PATCH 8/19] iscsi: Some fixes in preparation for bidirectional support - exp_datasn michaelc
2007-05-30 17:57 ` [PATCH 9/19] iscsi: Some fixes in preparation for bidirectional support - total_length michaelc
2007-05-30 17:57 ` [PATCH 10/19] iscsi class, iscsi_tcp, ib_iser: add sysfs chap file michaelc
2007-05-30 17:57 ` [PATCH 11/19] iscsi tcp: fix iscsi xmit state machine michaelc
2007-05-30 17:57 ` [PATCH 12/19] libiscsi: fix iscsi cmdsn allocation michaelc
2007-05-30 17:57 ` [PATCH 13/19] libiscsi: make can_queue configurable michaelc
2007-05-30 17:57 ` [PATCH 14/19] iscsi_tcp: fix handling of data buffer padding michaelc
2007-05-30 17:57 ` [PATCH 15/19] iscsi_tcp: remove DMA alignment restriction michaelc
2007-05-30 17:57 ` [PATCH 16/19] qla4xxx: add iscsi_transport capps for fw capacilities michaelc
2007-05-30 17:57 ` [PATCH 17/19] iscsi_tcp: fix fd leak michaelc
2007-05-30 17:57 ` [PATCH 18/19] iscsi class, qla4xxx, iscsi_tcp: export local address michaelc
2007-05-30 17:57 ` [PATCH 19/19] iscsi class, iscsi_tcp, iser, qla4xxx: add netdevname sysfs attr michaelc
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