#define NVMEFC_QUEUE_DELAY 3 /* ms units */
+#define NVME_FC_DEFAULT_DEV_LOSS_TMO 60 /* seconds */
+
struct nvme_fc_queue {
struct nvme_fc_ctrl *ctrl;
struct device *dev;
newrec->remoteport.port_id = pinfo->port_id;
newrec->remoteport.port_state = FC_OBJSTATE_ONLINE;
newrec->remoteport.port_num = idx;
+ /* a registration value of dev_loss_tmo=0 results in the default */
+ if (pinfo->dev_loss_tmo)
+ newrec->remoteport.dev_loss_tmo = pinfo->dev_loss_tmo;
+ else
+ newrec->remoteport.dev_loss_tmo = NVME_FC_DEFAULT_DEV_LOSS_TMO;
spin_lock_irqsave(&nvme_fc_lock, flags);
list_add_tail(&newrec->endp_list, &lport->endp_list);
}
EXPORT_SYMBOL_GPL(nvme_fc_rescan_remoteport);
+int
+nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *portptr,
+ u32 dev_loss_tmo)
+{
+ struct nvme_fc_rport *rport = remoteport_to_rport(portptr);
+ struct nvme_fc_ctrl *ctrl;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rport->lock, flags);
+
+ if (portptr->port_state != FC_OBJSTATE_ONLINE) {
+ spin_unlock_irqrestore(&rport->lock, flags);
+ return -EINVAL;
+ }
+
+ /* a dev_loss_tmo of 0 (immediate) is allowed to be set */
+ rport->remoteport.dev_loss_tmo = dev_loss_tmo;
+
+ spin_unlock_irqrestore(&rport->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(nvme_fc_set_remoteport_devloss);
+
/* *********************** FC-NVME DMA Handling **************************** */
* @node_name: FC WWNN for the port
* @port_name: FC WWPN for the port
* @port_role: What NVME roles are supported (see FC_PORT_ROLE_xxx)
+ * @dev_loss_tmo: maximum delay for reconnects to an association on
+ * this device. Used only on a remoteport.
*
* Initialization values for dynamic port fields:
* @port_id: FC N_Port_ID currently assigned the port. Upper 8 bits must
u64 port_name;
u32 port_role;
u32 port_id;
+ u32 dev_loss_tmo;
};
* The length of the buffer corresponds to the local_priv_sz
* value specified in the nvme_fc_port_template supplied by
* the LLDD.
+ * @dev_loss_tmo: maximum delay for reconnects to an association on
+ * this device. To modify, lldd must call
+ * nvme_fc_set_remoteport_devloss().
*
* Fields with dynamic values. Values may change base on link state. LLDD
* may reference fields directly to change them. Initialized by the
u32 port_role;
u64 node_name;
u64 port_name;
-
struct nvme_fc_local_port *localport;
-
void *private;
+ u32 dev_loss_tmo;
/* dynamic fields */
u32 port_id;
void nvme_fc_rescan_remoteport(struct nvme_fc_remote_port *remoteport);
+int nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *remoteport,
+ u32 dev_loss_tmo);
/*