commit 264faaaa12544e7914928ad57ccba21907cad56b
author Or Gerlitz <ogerlitz@voltaire.com> Tue May 02 19:46:36 2006 -0500
committer James Bottomley <jejb@mulgrave.il.steeleye.com> Wed May 10 10:11:38 2006 -0500
tree eb8a6993e43f3802b203b371b81fcfb89fc4f754
parent 169e1a2a8a789fa84254695ec6a56fc410bb19a9

[SCSI] iscsi: add transport end point callbacks

add transport end point callbacks so iscsi drivers that cannot connect
from userspace, like iscsi tcp, using sockets do not have to
implement their own socket infrastructure.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/iscsi_tcp.c

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index fe00a3f..ac507da 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -1975,7 +1975,7 @@
 
 static int
 iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session,
-		    struct iscsi_cls_conn *cls_conn, uint32_t transport_fd,
+		    struct iscsi_cls_conn *cls_conn, uint64_t transport_eph,
 		    int is_leading)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
@@ -1985,7 +1985,7 @@
 	int err;
 
 	/* lookup for existing socket */
-	sock = sockfd_lookup(transport_fd, &err);
+	sock = sockfd_lookup((int)transport_eph, &err);
 	if (!sock) {
 		printk(KERN_ERR "iscsi_tcp: sockfd_lookup failed %d\n", err);
 		return -EEXIST;

drivers/scsi/scsi_transport_iscsi.c

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index bc9071d..7b7a194 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -929,6 +929,40 @@
 }
 
 static int
+iscsi_if_transport_ep(struct iscsi_transport *transport,
+		      struct iscsi_uevent *ev, int msg_type)
+{
+	struct sockaddr *dst_addr;
+	int rc = 0;
+
+	switch (msg_type) {
+	case ISCSI_UEVENT_TRANSPORT_EP_CONNECT:
+		if (!transport->ep_connect)
+			return -EINVAL;
+
+		dst_addr = (struct sockaddr *)((char*)ev + sizeof(*ev));
+		rc = transport->ep_connect(dst_addr,
+					   ev->u.ep_connect.non_blocking,
+					   &ev->r.ep_connect_ret.handle);
+		break;
+	case ISCSI_UEVENT_TRANSPORT_EP_POLL:
+		if (!transport->ep_poll)
+			return -EINVAL;
+
+		ev->r.retcode = transport->ep_poll(ev->u.ep_poll.ep_handle,
+						   ev->u.ep_poll.timeout_ms);
+		break;
+	case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
+		if (!transport->ep_disconnect)
+			return -EINVAL;
+
+		transport->ep_disconnect(ev->u.ep_disconnect.ep_handle);
+		break;
+	}
+	return rc;
+}
+
+static int
 iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 {
 	int err = 0;
@@ -974,7 +1008,7 @@
 
 		if (session && conn)
 			ev->r.retcode =	transport->bind_conn(session, conn,
-					ev->u.b_conn.transport_fd,
+					ev->u.b_conn.transport_eph,
 					ev->u.b_conn.is_leading);
 		else
 			err = -EINVAL;
@@ -1009,6 +1043,11 @@
 	case ISCSI_UEVENT_GET_STATS:
 		err = iscsi_if_get_stats(transport, nlh);
 		break;
+	case ISCSI_UEVENT_TRANSPORT_EP_CONNECT:
+	case ISCSI_UEVENT_TRANSPORT_EP_POLL:
+	case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
+		err = iscsi_if_transport_ep(transport, ev, nlh->nlmsg_type);
+		break;
 	default:
 		err = -EINVAL;
 		break;