+static struct qla_work_evt *
+qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
+ int locked)
+{
+ struct qla_work_evt *e;
+
+ e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
+ GFP_KERNEL);
+ if (!e)
+ return NULL;
+
+ INIT_LIST_HEAD(&e->list);
+ e->type = type;
+ e->flags = QLA_EVT_FLAG_FREE;
+ return e;
+}
+
+static int
+qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
+{
+ unsigned long flags;
+ scsi_qla_host_t *pha = to_qla_parent(ha);
+
+ if (!locked)
+ spin_lock_irqsave(&pha->hardware_lock, flags);
+ list_add_tail(&e->list, &ha->work_list);
+ qla2xxx_wake_dpc(ha);
+ if (!locked)
+ spin_unlock_irqrestore(&pha->hardware_lock, flags);
+ return QLA_SUCCESS;
+}
+
+int
+qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
+ u32 data)
+{
+ struct qla_work_evt *e;
+
+ e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
+ if (!e)
+ return QLA_FUNCTION_FAILED;
+
+ e->u.aen.code = code;
+ e->u.aen.data = data;
+ return qla2x00_post_work(ha, e, 1);
+}
+
+int
+qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
+ uint16_t d2, uint16_t d3)
+{
+ struct qla_work_evt *e;
+
+ e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
+ if (!e)
+ return QLA_FUNCTION_FAILED;
+
+ e->u.hwe.code = code;
+ e->u.hwe.d1 = d1;
+ e->u.hwe.d2 = d2;
+ e->u.hwe.d3 = d3;
+ return qla2x00_post_work(ha, e, 1);
+}
+
+static void
+qla2x00_do_work(struct scsi_qla_host *ha)
+{
+ struct qla_work_evt *e;
+ scsi_qla_host_t *pha = to_qla_parent(ha);
+
+ spin_lock_irq(&pha->hardware_lock);
+ while (!list_empty(&ha->work_list)) {
+ e = list_entry(ha->work_list.next, struct qla_work_evt, list);
+ list_del_init(&e->list);
+ spin_unlock_irq(&pha->hardware_lock);
+
+ switch (e->type) {
+ case QLA_EVT_AEN:
+ fc_host_post_event(ha->host, fc_get_event_number(),
+ e->u.aen.code, e->u.aen.data);
+ break;
+ case QLA_EVT_HWE_LOG:
+ qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
+ e->u.hwe.d2, e->u.hwe.d3);
+ break;
+ }
+ if (e->flags & QLA_EVT_FLAG_FREE)
+ kfree(e);
+ spin_lock_irq(&pha->hardware_lock);
+ }
+ spin_unlock_irq(&pha->hardware_lock);
+}
+