#define ISCSI_SESSION_ATTRS 11
#define ISCSI_CONN_ATTRS 11
#define ISCSI_HOST_ATTRS 0
+#define ISCSI_TRANSPORT_VERSION "1.1-646"
struct iscsi_internal {
int daemon_pid;
static void iscsi_session_release(struct device *dev)
{
struct iscsi_cls_session *session = iscsi_dev_to_session(dev);
- struct iscsi_transport *transport = session->transport;
struct Scsi_Host *shost;
shost = iscsi_session_to_shost(session);
scsi_host_put(shost);
- kfree(session->targetname);
kfree(session);
- module_put(transport->owner);
}
static int iscsi_is_session_dev(const struct device *dev)
mutex_lock(&ihost->mutex);
list_for_each_entry(session, &ihost->sessions, host_list) {
- if ((channel == SCAN_WILD_CARD ||
- channel == session->channel) &&
+ if ((channel == SCAN_WILD_CARD || channel == 0) &&
(id == SCAN_WILD_CARD || id == session->target_id))
- scsi_scan_target(&session->dev, session->channel,
+ scsi_scan_target(&session->dev, 0,
session->target_id, lun, 1);
}
mutex_unlock(&ihost->mutex);
}
EXPORT_SYMBOL_GPL(iscsi_block_session);
-/**
- * iscsi_create_session - create iscsi class session
- * @shost: scsi host
- * @transport: iscsi transport
- *
- * This can be called from a LLD or iscsi_transport.
- **/
struct iscsi_cls_session *
-iscsi_create_session(struct Scsi_Host *shost,
- struct iscsi_transport *transport, int channel)
+iscsi_alloc_session(struct Scsi_Host *shost,
+ struct iscsi_transport *transport)
{
- struct iscsi_host *ihost;
struct iscsi_cls_session *session;
- int err;
-
- if (!try_module_get(transport->owner))
- return NULL;
session = kzalloc(sizeof(*session) + transport->sessiondata_size,
GFP_KERNEL);
if (!session)
- goto module_put;
+ return NULL;
+
session->transport = transport;
session->recovery_tmo = 120;
INIT_WORK(&session->recovery_work, session_recovery_timedout, session);
INIT_LIST_HEAD(&session->host_list);
INIT_LIST_HEAD(&session->sess_list);
+ /* this is released in the dev's release function */
+ scsi_host_get(shost);
+ session->dev.parent = &shost->shost_gendev;
+ session->dev.release = iscsi_session_release;
+ device_initialize(&session->dev);
if (transport->sessiondata_size)
session->dd_data = &session[1];
+ return session;
+}
+EXPORT_SYMBOL_GPL(iscsi_alloc_session);
- /* this is released in the dev's release function */
- scsi_host_get(shost);
- ihost = shost->shost_data;
+int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
+{
+ struct Scsi_Host *shost = iscsi_session_to_shost(session);
+ struct iscsi_host *ihost;
+ int err;
+ ihost = shost->shost_data;
session->sid = iscsi_session_nr++;
- session->channel = channel;
- session->target_id = ihost->next_target_id++;
+ session->target_id = target_id;
snprintf(session->dev.bus_id, BUS_ID_SIZE, "session%u",
session->sid);
- session->dev.parent = &shost->shost_gendev;
- session->dev.release = iscsi_session_release;
- err = device_register(&session->dev);
+ err = device_add(&session->dev);
if (err) {
dev_printk(KERN_ERR, &session->dev, "iscsi: could not "
"register session's dev\n");
- goto free_session;
+ goto release_host;
}
transport_register_device(&session->dev);
mutex_lock(&ihost->mutex);
list_add(&session->host_list, &ihost->sessions);
mutex_unlock(&ihost->mutex);
+ return 0;
- return session;
-
-free_session:
- kfree(session);
-module_put:
- module_put(transport->owner);
- return NULL;
+release_host:
+ scsi_host_put(shost);
+ return err;
}
-
-EXPORT_SYMBOL_GPL(iscsi_create_session);
+EXPORT_SYMBOL_GPL(iscsi_add_session);
/**
- * iscsi_destroy_session - destroy iscsi session
- * @session: iscsi_session
+ * iscsi_create_session - create iscsi class session
+ * @shost: scsi host
+ * @transport: iscsi transport
*
- * Can be called by a LLD or iscsi_transport. There must not be
- * any running connections.
+ * This can be called from a LLD or iscsi_transport.
**/
-int iscsi_destroy_session(struct iscsi_cls_session *session)
+struct iscsi_cls_session *
+iscsi_create_session(struct Scsi_Host *shost,
+ struct iscsi_transport *transport,
+ unsigned int target_id)
+{
+ struct iscsi_cls_session *session;
+
+ session = iscsi_alloc_session(shost, transport);
+ if (!session)
+ return NULL;
+
+ if (iscsi_add_session(session, target_id)) {
+ iscsi_free_session(session);
+ return NULL;
+ }
+ return session;
+}
+EXPORT_SYMBOL_GPL(iscsi_create_session);
+
+void iscsi_remove_session(struct iscsi_cls_session *session)
{
struct Scsi_Host *shost = iscsi_session_to_shost(session);
struct iscsi_host *ihost = shost->shost_data;
list_del(&session->host_list);
mutex_unlock(&ihost->mutex);
+ scsi_remove_target(&session->dev);
+
transport_unregister_device(&session->dev);
- device_unregister(&session->dev);
- return 0;
+ device_del(&session->dev);
+}
+EXPORT_SYMBOL_GPL(iscsi_remove_session);
+
+void iscsi_free_session(struct iscsi_cls_session *session)
+{
+ put_device(&session->dev);
}
+EXPORT_SYMBOL_GPL(iscsi_free_session);
+
+/**
+ * iscsi_destroy_session - destroy iscsi session
+ * @session: iscsi_session
+ *
+ * Can be called by a LLD or iscsi_transport. There must not be
+ * any running connections.
+ **/
+int iscsi_destroy_session(struct iscsi_cls_session *session)
+{
+ iscsi_remove_session(session);
+ iscsi_free_session(session);
+ return 0;
+}
EXPORT_SYMBOL_GPL(iscsi_destroy_session);
+static void mempool_zone_destroy(struct mempool_zone *zp)
+{
+ mempool_destroy(zp->pool);
+ kfree(zp);
+}
+
+static void*
+mempool_zone_alloc_skb(gfp_t gfp_mask, void *pool_data)
+{
+ struct mempool_zone *zone = pool_data;
+
+ return alloc_skb(zone->size, gfp_mask);
+}
+
+static void
+mempool_zone_free_skb(void *element, void *pool_data)
+{
+ kfree_skb(element);
+}
+
+static struct mempool_zone *
+mempool_zone_init(unsigned max, unsigned size, unsigned hiwat)
+{
+ struct mempool_zone *zp;
+
+ zp = kzalloc(sizeof(*zp), GFP_KERNEL);
+ if (!zp)
+ return NULL;
+
+ zp->size = size;
+ zp->hiwat = hiwat;
+ INIT_LIST_HEAD(&zp->freequeue);
+ spin_lock_init(&zp->freelock);
+ atomic_set(&zp->allocated, 0);
+
+ zp->pool = mempool_create(max, mempool_zone_alloc_skb,
+ mempool_zone_free_skb, zp);
+ if (!zp->pool) {
+ kfree(zp);
+ return NULL;
+ }
+
+ return zp;
+}
+
static void iscsi_conn_release(struct device *dev)
{
struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev);
struct device *parent = conn->dev.parent;
- kfree(conn->persistent_address);
+ mempool_zone_destroy(conn->z_pdu);
+ mempool_zone_destroy(conn->z_error);
+
kfree(conn);
put_device(parent);
}
return dev->release == iscsi_conn_release;
}
+static int iscsi_create_event_pools(struct iscsi_cls_conn *conn)
+{
+ conn->z_pdu = mempool_zone_init(Z_MAX_PDU,
+ NLMSG_SPACE(sizeof(struct iscsi_uevent) +
+ sizeof(struct iscsi_hdr) +
+ DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH),
+ Z_HIWAT_PDU);
+ if (!conn->z_pdu) {
+ dev_printk(KERN_ERR, &conn->dev, "iscsi: can not allocate "
+ "pdu zone for new conn\n");
+ return -ENOMEM;
+ }
+
+ conn->z_error = mempool_zone_init(Z_MAX_ERROR,
+ NLMSG_SPACE(sizeof(struct iscsi_uevent)),
+ Z_HIWAT_ERROR);
+ if (!conn->z_error) {
+ dev_printk(KERN_ERR, &conn->dev, "iscsi: can not allocate "
+ "error zone for new conn\n");
+ mempool_zone_destroy(conn->z_pdu);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
/**
* iscsi_create_conn - create iscsi class connection
* @session: iscsi cls session
conn->transport = transport;
conn->cid = cid;
+ if (iscsi_create_event_pools(conn))
+ goto free_conn;
+
/* this is released in the dev's release function */
if (!get_device(&session->dev))
- goto free_conn;
+ goto free_conn_pools;
snprintf(conn->dev.bus_id, BUS_ID_SIZE, "connection%d:%u",
session->sid, cid);
release_parent_ref:
put_device(&session->dev);
+free_conn_pools:
+
free_conn:
kfree(conn);
return NULL;
return (struct list_head *)&skb->cb;
}
-static void*
-mempool_zone_alloc_skb(gfp_t gfp_mask, void *pool_data)
-{
- struct mempool_zone *zone = pool_data;
-
- return alloc_skb(zone->size, gfp_mask);
-}
-
-static void
-mempool_zone_free_skb(void *element, void *pool_data)
-{
- kfree_skb(element);
-}
-
static void
mempool_zone_complete(struct mempool_zone *zone)
{
spin_unlock_irqrestore(&zone->freelock, flags);
}
-static struct mempool_zone *
-mempool_zone_init(unsigned max, unsigned size, unsigned hiwat)
-{
- struct mempool_zone *zp;
-
- zp = kzalloc(sizeof(*zp), GFP_KERNEL);
- if (!zp)
- return NULL;
-
- zp->size = size;
- zp->hiwat = hiwat;
- INIT_LIST_HEAD(&zp->freequeue);
- spin_lock_init(&zp->freelock);
- atomic_set(&zp->allocated, 0);
-
- zp->pool = mempool_create(max, mempool_zone_alloc_skb,
- mempool_zone_free_skb, zp);
- if (!zp->pool) {
- kfree(zp);
- return NULL;
- }
-
- return zp;
-}
-
-static void mempool_zone_destroy(struct mempool_zone *zp)
-{
- mempool_destroy(zp->pool);
- kfree(zp);
-}
-
static struct sk_buff*
mempool_zone_get_skb(struct mempool_zone *zone)
{
return skb;
}
+static int
+iscsi_broadcast_skb(struct mempool_zone *zone, struct sk_buff *skb, gfp_t gfp)
+{
+ unsigned long flags;
+ int rc;
+
+ skb_get(skb);
+ rc = netlink_broadcast(nls, skb, 0, 1, gfp);
+ if (rc < 0) {
+ mempool_free(skb, zone->pool);
+ printk(KERN_ERR "iscsi: can not broadcast skb (%d)\n", rc);
+ return rc;
+ }
+
+ spin_lock_irqsave(&zone->freelock, flags);
+ INIT_LIST_HEAD(skb_to_lh(skb));
+ list_add(skb_to_lh(skb), &zone->freequeue);
+ spin_unlock_irqrestore(&zone->freelock, flags);
+ return 0;
+}
+
static int
iscsi_unicast_skb(struct mempool_zone *zone, struct sk_buff *skb, int pid)
{
ev->r.connerror.cid = conn->cid;
ev->r.connerror.sid = iscsi_conn_get_sid(conn);
- iscsi_unicast_skb(conn->z_error, skb, priv->daemon_pid);
+ iscsi_broadcast_skb(conn->z_error, skb, GFP_ATOMIC);
dev_printk(KERN_INFO, &conn->dev, "iscsi: detected conn error (%d)\n",
error);
return err;
}
+/**
+ * iscsi_if_destroy_session_done - send session destr. completion event
+ * @conn: last connection for session
+ *
+ * This is called by HW iscsi LLDs to notify userpsace that its HW has
+ * removed a session.
+ **/
+int iscsi_if_destroy_session_done(struct iscsi_cls_conn *conn)
+{
+ struct iscsi_internal *priv;
+ struct iscsi_cls_session *session;
+ struct Scsi_Host *shost;
+ struct iscsi_uevent *ev;
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ unsigned long flags;
+ int rc, len = NLMSG_SPACE(sizeof(*ev));
+
+ priv = iscsi_if_transport_lookup(conn->transport);
+ if (!priv)
+ return -EINVAL;
+
+ session = iscsi_dev_to_session(conn->dev.parent);
+ shost = iscsi_session_to_shost(session);
+
+ mempool_zone_complete(conn->z_pdu);
+
+ skb = mempool_zone_get_skb(conn->z_pdu);
+ if (!skb) {
+ dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
+ "session creation event\n");
+ return -ENOMEM;
+ }
+
+ nlh = __nlmsg_put(skb, priv->daemon_pid, 0, 0, (len - sizeof(*nlh)), 0);
+ ev = NLMSG_DATA(nlh);
+ ev->transport_handle = iscsi_handle(conn->transport);
+ ev->type = ISCSI_KEVENT_DESTROY_SESSION;
+ ev->r.d_session.host_no = shost->host_no;
+ ev->r.d_session.sid = session->sid;
+
+ /*
+ * this will occur if the daemon is not up, so we just warn
+ * the user and when the daemon is restarted it will handle it
+ */
+ rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL);
+ if (rc < 0)
+ dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
+ "session destruction event. Check iscsi daemon\n");
+
+ spin_lock_irqsave(&sesslock, flags);
+ list_del(&session->sess_list);
+ spin_unlock_irqrestore(&sesslock, flags);
+
+ spin_lock_irqsave(&connlock, flags);
+ conn->active = 0;
+ list_del(&conn->conn_list);
+ spin_unlock_irqrestore(&connlock, flags);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(iscsi_if_destroy_session_done);
+
+/**
+ * iscsi_if_create_session_done - send session creation completion event
+ * @conn: leading connection for session
+ *
+ * This is called by HW iscsi LLDs to notify userpsace that its HW has
+ * created a session or a existing session is back in the logged in state.
+ **/
+int iscsi_if_create_session_done(struct iscsi_cls_conn *conn)
+{
+ struct iscsi_internal *priv;
+ struct iscsi_cls_session *session;
+ struct Scsi_Host *shost;
+ struct iscsi_uevent *ev;
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ unsigned long flags;
+ int rc, len = NLMSG_SPACE(sizeof(*ev));
+
+ priv = iscsi_if_transport_lookup(conn->transport);
+ if (!priv)
+ return -EINVAL;
+
+ session = iscsi_dev_to_session(conn->dev.parent);
+ shost = iscsi_session_to_shost(session);
+
+ mempool_zone_complete(conn->z_pdu);
+
+ skb = mempool_zone_get_skb(conn->z_pdu);
+ if (!skb) {
+ dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
+ "session creation event\n");
+ return -ENOMEM;
+ }
+
+ nlh = __nlmsg_put(skb, priv->daemon_pid, 0, 0, (len - sizeof(*nlh)), 0);
+ ev = NLMSG_DATA(nlh);
+ ev->transport_handle = iscsi_handle(conn->transport);
+ ev->type = ISCSI_UEVENT_CREATE_SESSION;
+ ev->r.c_session_ret.host_no = shost->host_no;
+ ev->r.c_session_ret.sid = session->sid;
+
+ /*
+ * this will occur if the daemon is not up, so we just warn
+ * the user and when the daemon is restarted it will handle it
+ */
+ rc = iscsi_broadcast_skb(conn->z_pdu, skb, GFP_KERNEL);
+ if (rc < 0)
+ dev_printk(KERN_ERR, &conn->dev, "Cannot notify userspace of "
+ "session creation event. Check iscsi daemon\n");
+
+ spin_lock_irqsave(&sesslock, flags);
+ list_add(&session->sess_list, &sesslist);
+ spin_unlock_irqrestore(&sesslock, flags);
+
+ spin_lock_irqsave(&connlock, flags);
+ list_add(&conn->conn_list, &connlist);
+ conn->active = 1;
+ spin_unlock_irqrestore(&connlock, flags);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(iscsi_if_create_session_done);
+
static int
iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_uevent *ev)
{
return -ENOMEM;
}
- conn->z_pdu = mempool_zone_init(Z_MAX_PDU,
- NLMSG_SPACE(sizeof(struct iscsi_uevent) +
- sizeof(struct iscsi_hdr) +
- DEFAULT_MAX_RECV_DATA_SEGMENT_LENGTH),
- Z_HIWAT_PDU);
- if (!conn->z_pdu) {
- dev_printk(KERN_ERR, &conn->dev, "iscsi: can not allocate "
- "pdu zone for new conn\n");
- goto destroy_conn;
- }
-
- conn->z_error = mempool_zone_init(Z_MAX_ERROR,
- NLMSG_SPACE(sizeof(struct iscsi_uevent)),
- Z_HIWAT_ERROR);
- if (!conn->z_error) {
- dev_printk(KERN_ERR, &conn->dev, "iscsi: can not allocate "
- "error zone for new conn\n");
- goto free_pdu_pool;
- }
-
ev->r.c_conn_ret.sid = session->sid;
ev->r.c_conn_ret.cid = conn->cid;
spin_unlock_irqrestore(&connlock, flags);
return 0;
-
-free_pdu_pool:
- mempool_zone_destroy(conn->z_pdu);
-destroy_conn:
- if (transport->destroy_conn)
- transport->destroy_conn(conn->dd_data);
- return -ENOMEM;
}
static int
{
unsigned long flags;
struct iscsi_cls_conn *conn;
- struct mempool_zone *z_error, *z_pdu;
conn = iscsi_conn_lookup(ev->u.d_conn.sid, ev->u.d_conn.cid);
if (!conn)
list_del(&conn->conn_list);
spin_unlock_irqrestore(&connlock, flags);
- z_pdu = conn->z_pdu;
- z_error = conn->z_error;
-
if (transport->destroy_conn)
transport->destroy_conn(conn);
-
- mempool_zone_destroy(z_pdu);
- mempool_zone_destroy(z_error);
-
return 0;
}
-static void
-iscsi_copy_param(struct iscsi_uevent *ev, uint32_t *value, char *data)
-{
- if (ev->u.set_param.len != sizeof(uint32_t))
- BUG();
- memcpy(value, data, min_t(uint32_t, sizeof(uint32_t),
- ev->u.set_param.len));
-}
-
static int
iscsi_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev)
{
char *data = (char*)ev + sizeof(*ev);
struct iscsi_cls_conn *conn;
struct iscsi_cls_session *session;
- int err = 0;
- uint32_t value = 0;
+ int err = 0, value = 0;
session = iscsi_session_lookup(ev->u.set_param.sid);
conn = iscsi_conn_lookup(ev->u.set_param.sid, ev->u.set_param.cid);
switch (ev->u.set_param.param) {
case ISCSI_PARAM_SESS_RECOVERY_TMO:
- iscsi_copy_param(ev, &value, data);
+ sscanf(data, "%d", &value);
if (value != 0)
session->recovery_tmo = value;
break;
- case ISCSI_PARAM_TARGET_NAME:
- /* this should not change between logins */
- if (session->targetname)
- return 0;
-
- session->targetname = kstrdup(data, GFP_KERNEL);
- if (!session->targetname)
- return -ENOMEM;
- break;
- case ISCSI_PARAM_TPGT:
- iscsi_copy_param(ev, &value, data);
- session->tpgt = value;
- break;
- case ISCSI_PARAM_PERSISTENT_PORT:
- iscsi_copy_param(ev, &value, data);
- conn->persistent_port = value;
- break;
- case ISCSI_PARAM_PERSISTENT_ADDRESS:
- /*
- * this is the address returned in discovery so it should
- * not change between logins.
- */
- if (conn->persistent_address)
- return 0;
-
- conn->persistent_address = kstrdup(data, GFP_KERNEL);
- if (!conn->persistent_address)
- return -ENOMEM;
- break;
default:
- iscsi_copy_param(ev, &value, data);
- err = transport->set_param(conn, ev->u.set_param.param, value);
+ err = transport->set_param(conn, ev->u.set_param.param,
+ data, ev->u.set_param.len);
}
return err;
return rc;
}
+static int
+iscsi_tgt_dscvr(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ struct sockaddr *dst_addr;
+
+ if (!transport->tgt_dscvr)
+ return -EINVAL;
+
+ dst_addr = (struct sockaddr *)((char*)ev + sizeof(*ev));
+ return transport->tgt_dscvr(ev->u.tgt_dscvr.type,
+ ev->u.tgt_dscvr.host_no,
+ ev->u.tgt_dscvr.enable, dst_addr);
+}
+
static int
iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
err = iscsi_if_transport_ep(transport, ev, nlh->nlmsg_type);
break;
+ case ISCSI_UEVENT_TGT_DSCVR:
+ err = iscsi_tgt_dscvr(transport, ev);
+ break;
default:
err = -EINVAL;
break;
/*
* iSCSI connection attrs
*/
-#define iscsi_conn_int_attr_show(param, format) \
-static ssize_t \
-show_conn_int_param_##param(struct class_device *cdev, char *buf) \
-{ \
- uint32_t value = 0; \
- struct iscsi_cls_conn *conn = iscsi_cdev_to_conn(cdev); \
- struct iscsi_transport *t = conn->transport; \
- \
- t->get_conn_param(conn, param, &value); \
- return snprintf(buf, 20, format"\n", value); \
-}
-
-#define iscsi_conn_int_attr(field, param, format) \
- iscsi_conn_int_attr_show(param, format) \
-static ISCSI_CLASS_ATTR(conn, field, S_IRUGO, show_conn_int_param_##param, \
- NULL);
-
-iscsi_conn_int_attr(max_recv_dlength, ISCSI_PARAM_MAX_RECV_DLENGTH, "%u");
-iscsi_conn_int_attr(max_xmit_dlength, ISCSI_PARAM_MAX_XMIT_DLENGTH, "%u");
-iscsi_conn_int_attr(header_digest, ISCSI_PARAM_HDRDGST_EN, "%d");
-iscsi_conn_int_attr(data_digest, ISCSI_PARAM_DATADGST_EN, "%d");
-iscsi_conn_int_attr(ifmarker, ISCSI_PARAM_IFMARKER_EN, "%d");
-iscsi_conn_int_attr(ofmarker, ISCSI_PARAM_OFMARKER_EN, "%d");
-iscsi_conn_int_attr(persistent_port, ISCSI_PARAM_PERSISTENT_PORT, "%d");
-iscsi_conn_int_attr(port, ISCSI_PARAM_CONN_PORT, "%d");
-iscsi_conn_int_attr(exp_statsn, ISCSI_PARAM_EXP_STATSN, "%u");
-
-#define iscsi_conn_str_attr_show(param) \
+#define iscsi_conn_attr_show(param) \
static ssize_t \
-show_conn_str_param_##param(struct class_device *cdev, char *buf) \
+show_conn_param_##param(struct class_device *cdev, char *buf) \
{ \
struct iscsi_cls_conn *conn = iscsi_cdev_to_conn(cdev); \
struct iscsi_transport *t = conn->transport; \
- return t->get_conn_str_param(conn, param, buf); \
+ return t->get_conn_param(conn, param, buf); \
}
-#define iscsi_conn_str_attr(field, param) \
- iscsi_conn_str_attr_show(param) \
-static ISCSI_CLASS_ATTR(conn, field, S_IRUGO, show_conn_str_param_##param, \
+#define iscsi_conn_attr(field, param) \
+ iscsi_conn_attr_show(param) \
+static ISCSI_CLASS_ATTR(conn, field, S_IRUGO, show_conn_param_##param, \
NULL);
-iscsi_conn_str_attr(persistent_address, ISCSI_PARAM_PERSISTENT_ADDRESS);
-iscsi_conn_str_attr(address, ISCSI_PARAM_CONN_ADDRESS);
+iscsi_conn_attr(max_recv_dlength, ISCSI_PARAM_MAX_RECV_DLENGTH);
+iscsi_conn_attr(max_xmit_dlength, ISCSI_PARAM_MAX_XMIT_DLENGTH);
+iscsi_conn_attr(header_digest, ISCSI_PARAM_HDRDGST_EN);
+iscsi_conn_attr(data_digest, ISCSI_PARAM_DATADGST_EN);
+iscsi_conn_attr(ifmarker, ISCSI_PARAM_IFMARKER_EN);
+iscsi_conn_attr(ofmarker, ISCSI_PARAM_OFMARKER_EN);
+iscsi_conn_attr(persistent_port, ISCSI_PARAM_PERSISTENT_PORT);
+iscsi_conn_attr(port, ISCSI_PARAM_CONN_PORT);
+iscsi_conn_attr(exp_statsn, ISCSI_PARAM_EXP_STATSN);
+iscsi_conn_attr(persistent_address, ISCSI_PARAM_PERSISTENT_ADDRESS);
+iscsi_conn_attr(address, ISCSI_PARAM_CONN_ADDRESS);
#define iscsi_cdev_to_session(_cdev) \
iscsi_dev_to_session(_cdev->dev)
/*
* iSCSI session attrs
*/
-#define iscsi_session_int_attr_show(param, format) \
-static ssize_t \
-show_session_int_param_##param(struct class_device *cdev, char *buf) \
-{ \
- uint32_t value = 0; \
- struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev); \
- struct iscsi_transport *t = session->transport; \
- \
- t->get_session_param(session, param, &value); \
- return snprintf(buf, 20, format"\n", value); \
-}
-
-#define iscsi_session_int_attr(field, param, format) \
- iscsi_session_int_attr_show(param, format) \
-static ISCSI_CLASS_ATTR(sess, field, S_IRUGO, show_session_int_param_##param, \
- NULL);
-
-iscsi_session_int_attr(initial_r2t, ISCSI_PARAM_INITIAL_R2T_EN, "%d");
-iscsi_session_int_attr(max_outstanding_r2t, ISCSI_PARAM_MAX_R2T, "%hu");
-iscsi_session_int_attr(immediate_data, ISCSI_PARAM_IMM_DATA_EN, "%d");
-iscsi_session_int_attr(first_burst_len, ISCSI_PARAM_FIRST_BURST, "%u");
-iscsi_session_int_attr(max_burst_len, ISCSI_PARAM_MAX_BURST, "%u");
-iscsi_session_int_attr(data_pdu_in_order, ISCSI_PARAM_PDU_INORDER_EN, "%d");
-iscsi_session_int_attr(data_seq_in_order, ISCSI_PARAM_DATASEQ_INORDER_EN, "%d");
-iscsi_session_int_attr(erl, ISCSI_PARAM_ERL, "%d");
-iscsi_session_int_attr(tpgt, ISCSI_PARAM_TPGT, "%d");
-
-#define iscsi_session_str_attr_show(param) \
+#define iscsi_session_attr_show(param) \
static ssize_t \
-show_session_str_param_##param(struct class_device *cdev, char *buf) \
+show_session_param_##param(struct class_device *cdev, char *buf) \
{ \
struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev); \
struct iscsi_transport *t = session->transport; \
- return t->get_session_str_param(session, param, buf); \
+ return t->get_session_param(session, param, buf); \
}
-#define iscsi_session_str_attr(field, param) \
- iscsi_session_str_attr_show(param) \
-static ISCSI_CLASS_ATTR(sess, field, S_IRUGO, show_session_str_param_##param, \
+#define iscsi_session_attr(field, param) \
+ iscsi_session_attr_show(param) \
+static ISCSI_CLASS_ATTR(sess, field, S_IRUGO, show_session_param_##param, \
NULL);
-iscsi_session_str_attr(targetname, ISCSI_PARAM_TARGET_NAME);
+iscsi_session_attr(targetname, ISCSI_PARAM_TARGET_NAME);
+iscsi_session_attr(initial_r2t, ISCSI_PARAM_INITIAL_R2T_EN);
+iscsi_session_attr(max_outstanding_r2t, ISCSI_PARAM_MAX_R2T);
+iscsi_session_attr(immediate_data, ISCSI_PARAM_IMM_DATA_EN);
+iscsi_session_attr(first_burst_len, ISCSI_PARAM_FIRST_BURST);
+iscsi_session_attr(max_burst_len, ISCSI_PARAM_MAX_BURST);
+iscsi_session_attr(data_pdu_in_order, ISCSI_PARAM_PDU_INORDER_EN);
+iscsi_session_attr(data_seq_in_order, ISCSI_PARAM_DATASEQ_INORDER_EN);
+iscsi_session_attr(erl, ISCSI_PARAM_ERL);
+iscsi_session_attr(tpgt, ISCSI_PARAM_TPGT);
-/*
- * Private session and conn attrs. userspace uses several iscsi values
- * to identify each session between reboots. Some of these values may not
- * be present in the iscsi_transport/LLD driver becuase userspace handles
- * login (and failback for login redirect) so for these type of drivers
- * the class manages the attrs and values for the iscsi_transport/LLD
- */
#define iscsi_priv_session_attr_show(field, format) \
static ssize_t \
-show_priv_session_##field(struct class_device *cdev, char *buf) \
+show_priv_session_##field(struct class_device *cdev, char *buf) \
{ \
- struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev); \
+ struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev);\
return sprintf(buf, format"\n", session->field); \
}
iscsi_priv_session_attr_show(field, format) \
static ISCSI_CLASS_ATTR(priv_sess, field, S_IRUGO, show_priv_session_##field, \
NULL)
-iscsi_priv_session_attr(targetname, "%s");
-iscsi_priv_session_attr(tpgt, "%d");
iscsi_priv_session_attr(recovery_tmo, "%d");
-#define iscsi_priv_conn_attr_show(field, format) \
-static ssize_t \
-show_priv_conn_##field(struct class_device *cdev, char *buf) \
-{ \
- struct iscsi_cls_conn *conn = iscsi_cdev_to_conn(cdev); \
- return sprintf(buf, format"\n", conn->field); \
-}
-
-#define iscsi_priv_conn_attr(field, format) \
- iscsi_priv_conn_attr_show(field, format) \
-static ISCSI_CLASS_ATTR(priv_conn, field, S_IRUGO, show_priv_conn_##field, \
- NULL)
-iscsi_priv_conn_attr(persistent_address, "%s");
-iscsi_priv_conn_attr(persistent_port, "%d");
-
#define SETUP_PRIV_SESSION_RD_ATTR(field) \
do { \
priv->session_attrs[count] = &class_device_attr_priv_sess_##field; \
count++; \
} while (0)
+
#define SETUP_SESSION_RD_ATTR(field, param_flag) \
do { \
if (tt->param_mask & param_flag) { \
} \
} while (0)
-#define SETUP_PRIV_CONN_RD_ATTR(field) \
-do { \
- priv->conn_attrs[count] = &class_device_attr_priv_conn_##field; \
- count++; \
-} while (0)
-
#define SETUP_CONN_RD_ATTR(field, param_flag) \
do { \
if (tt->param_mask & param_flag) { \
if (!priv)
return NULL;
INIT_LIST_HEAD(&priv->list);
+ priv->daemon_pid = -1;
priv->iscsi_transport = tt;
priv->t.user_scan = iscsi_user_scan;
SETUP_CONN_RD_ATTR(address, ISCSI_CONN_ADDRESS);
SETUP_CONN_RD_ATTR(port, ISCSI_CONN_PORT);
SETUP_CONN_RD_ATTR(exp_statsn, ISCSI_EXP_STATSN);
-
- if (tt->param_mask & ISCSI_PERSISTENT_ADDRESS)
- SETUP_CONN_RD_ATTR(persistent_address, ISCSI_PERSISTENT_ADDRESS);
- else
- SETUP_PRIV_CONN_RD_ATTR(persistent_address);
-
- if (tt->param_mask & ISCSI_PERSISTENT_PORT)
- SETUP_CONN_RD_ATTR(persistent_port, ISCSI_PERSISTENT_PORT);
- else
- SETUP_PRIV_CONN_RD_ATTR(persistent_port);
+ SETUP_CONN_RD_ATTR(persistent_address, ISCSI_PERSISTENT_ADDRESS);
+ SETUP_CONN_RD_ATTR(persistent_port, ISCSI_PERSISTENT_PORT);
BUG_ON(count > ISCSI_CONN_ATTRS);
priv->conn_attrs[count] = NULL;
SETUP_SESSION_RD_ATTR(data_pdu_in_order, ISCSI_PDU_INORDER_EN);
SETUP_SESSION_RD_ATTR(data_seq_in_order, ISCSI_DATASEQ_INORDER_EN);
SETUP_SESSION_RD_ATTR(erl, ISCSI_ERL);
+ SETUP_SESSION_RD_ATTR(targetname, ISCSI_TARGET_NAME);
+ SETUP_SESSION_RD_ATTR(tpgt, ISCSI_TPGT);
SETUP_PRIV_SESSION_RD_ATTR(recovery_tmo);
- if (tt->param_mask & ISCSI_TARGET_NAME)
- SETUP_SESSION_RD_ATTR(targetname, ISCSI_TARGET_NAME);
- else
- SETUP_PRIV_SESSION_RD_ATTR(targetname);
-
- if (tt->param_mask & ISCSI_TPGT)
- SETUP_SESSION_RD_ATTR(tpgt, ISCSI_TPGT);
- else
- SETUP_PRIV_SESSION_RD_ATTR(tpgt);
-
BUG_ON(count > ISCSI_SESSION_ATTRS);
priv->session_attrs[count] = NULL;
{
int err;
+ printk(KERN_INFO "Loading iSCSI transport class v%s.",
+ ISCSI_TRANSPORT_VERSION);
+
err = class_register(&iscsi_transport_class);
if (err)
return err;
"Alex Aizman <itn780@yahoo.com>");
MODULE_DESCRIPTION("iSCSI Transport Interface");
MODULE_LICENSE("GPL");
+MODULE_VERSION(ISCSI_TRANSPORT_VERSION);
git.openpandora.org / pandora-kernel.git / blobdiff