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-rw-r--r--drivers/infiniband/ulp/iser/iscsi_iser.c1
-rw-r--r--drivers/scsi/iscsi_tcp.c5
-rw-r--r--drivers/scsi/scsi_transport_iscsi.c46
-rw-r--r--include/scsi/iscsi_if.h7
-rw-r--r--include/scsi/libiscsi.h1
-rw-r--r--include/scsi/scsi_transport_iscsi.h4
6 files changed, 51 insertions, 13 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index aeb58ca..efc1219 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -368,6 +368,7 @@ static struct iscsi_transport iscsi_iser_transport;
static struct iscsi_cls_session *
iscsi_iser_session_create(struct iscsi_transport *iscsit,
struct scsi_transport_template *scsit,
+ struct Scsi_Host *shost,
uint16_t cmds_max, uint16_t qdepth,
uint32_t initial_cmdsn, uint32_t *hostno)
{
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 72b9b2a..81c421a 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -1871,8 +1871,9 @@ iscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats)
static struct iscsi_cls_session *
iscsi_tcp_session_create(struct iscsi_transport *iscsit,
struct scsi_transport_template *scsit,
- uint16_t cmds_max, uint16_t qdepth,
- uint32_t initial_cmdsn, uint32_t *hostno)
+ struct Scsi_Host *shost, uint16_t cmds_max,
+ uint16_t qdepth, uint32_t initial_cmdsn,
+ uint32_t *hostno)
{
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 65d1737..2a6669d 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1017,21 +1017,38 @@ int iscsi_session_event(struct iscsi_cls_session *session,
EXPORT_SYMBOL_GPL(iscsi_session_event);
static int
-iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_uevent *ev)
+iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_uevent *ev,
+ uint32_t host_no, uint32_t initial_cmdsn,
+ uint16_t cmds_max, uint16_t queue_depth)
{
struct iscsi_transport *transport = priv->iscsi_transport;
struct iscsi_cls_session *session;
- uint32_t hostno;
+ struct Scsi_Host *shost = NULL;
- session = transport->create_session(transport, &priv->t,
- ev->u.c_session.cmds_max,
- ev->u.c_session.queue_depth,
- ev->u.c_session.initial_cmdsn,
- &hostno);
+ /*
+ * Software iscsi allocates a host per session, but
+ * offload drivers (and possibly iser one day) allocate a host per
+ * hba/nic/rnic. Offload will match a host here, but software will
+ * return a new hostno after the create_session callback has returned.
+ */
+ if (host_no != UINT_MAX) {
+ shost = scsi_host_lookup(host_no);
+ if (IS_ERR(shost)) {
+ printk(KERN_ERR "Could not find host no %u to "
+ "create session\n", host_no);
+ return -ENODEV;
+ }
+ }
+
+ session = transport->create_session(transport, &priv->t, shost,
+ cmds_max, queue_depth,
+ initial_cmdsn, &host_no);
+ if (shost)
+ scsi_host_put(shost);
if (!session)
return -ENOMEM;
- ev->r.c_session_ret.host_no = hostno;
+ ev->r.c_session_ret.host_no = host_no;
ev->r.c_session_ret.sid = session->sid;
return 0;
}
@@ -1190,6 +1207,7 @@ static int
iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
int err = 0;
+ uint32_t host_no = UINT_MAX;
struct iscsi_uevent *ev = NLMSG_DATA(nlh);
struct iscsi_transport *transport = NULL;
struct iscsi_internal *priv;
@@ -1208,7 +1226,17 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
switch (nlh->nlmsg_type) {
case ISCSI_UEVENT_CREATE_SESSION:
- err = iscsi_if_create_session(priv, ev);
+ err = iscsi_if_create_session(priv, ev, host_no,
+ ev->u.c_session.initial_cmdsn,
+ ev->u.c_session.cmds_max,
+ ev->u.c_session.queue_depth);
+ break;
+ case ISCSI_UEVENT_CREATE_BOUND_SESSION:
+ err = iscsi_if_create_session(priv, ev,
+ ev->u.c_bound_session.host_no,
+ ev->u.c_bound_session.initial_cmdsn,
+ ev->u.c_bound_session.cmds_max,
+ ev->u.c_bound_session.queue_depth);
break;
case ISCSI_UEVENT_DESTROY_SESSION:
session = iscsi_session_lookup(ev->u.d_session.sid);
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index e19e584..1883c85 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -50,6 +50,7 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_TGT_DSCVR = UEVENT_BASE + 15,
ISCSI_UEVENT_SET_HOST_PARAM = UEVENT_BASE + 16,
ISCSI_UEVENT_UNBIND_SESSION = UEVENT_BASE + 17,
+ ISCSI_UEVENT_CREATE_BOUND_SESSION = UEVENT_BASE + 18,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
@@ -78,6 +79,12 @@ struct iscsi_uevent {
uint16_t cmds_max;
uint16_t queue_depth;
} c_session;
+ struct msg_create_bound_session {
+ uint32_t host_no;
+ uint32_t initial_cmdsn;
+ uint16_t cmds_max;
+ uint16_t queue_depth;
+ } c_bound_session;
struct msg_destroy_session {
uint32_t sid;
} d_session;
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index cd3ca63..f24cf02 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -24,6 +24,7 @@
#define LIBISCSI_H
#include <linux/types.h>
+#include <linux/wait.h>
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index aab1eae..02a8520 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -92,8 +92,8 @@ struct iscsi_transport {
unsigned int max_conn;
unsigned int max_cmd_len;
struct iscsi_cls_session *(*create_session) (struct iscsi_transport *it,
- struct scsi_transport_template *t, uint16_t, uint16_t,
- uint32_t sn, uint32_t *hn);
+ struct scsi_transport_template *t, struct Scsi_Host *shost,
+ uint16_t cmds_max, uint16_t qdepth, uint32_t sn, uint32_t *hn);
void (*destroy_session) (struct iscsi_cls_session *session);
struct iscsi_cls_conn *(*create_conn) (struct iscsi_cls_session *sess,
uint32_t cid);
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