+
+/* 84XX Support **************************************************************/
+
+static LIST_HEAD(qla_cs84xx_list);
+static DEFINE_MUTEX(qla_cs84xx_mutex);
+
+static struct qla_chip_state_84xx *
+qla84xx_get_chip(struct scsi_qla_host *ha)
+{
+ struct qla_chip_state_84xx *cs84xx;
+
+ mutex_lock(&qla_cs84xx_mutex);
+
+ /* Find any shared 84xx chip. */
+ list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
+ if (cs84xx->bus == ha->pdev->bus) {
+ kref_get(&cs84xx->kref);
+ goto done;
+ }
+ }
+
+ cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
+ if (!cs84xx)
+ goto done;
+
+ kref_init(&cs84xx->kref);
+ spin_lock_init(&cs84xx->access_lock);
+ mutex_init(&cs84xx->fw_update_mutex);
+ cs84xx->bus = ha->pdev->bus;
+
+ list_add_tail(&cs84xx->list, &qla_cs84xx_list);
+done:
+ mutex_unlock(&qla_cs84xx_mutex);
+ return cs84xx;
+}
+
+static void
+__qla84xx_chip_release(struct kref *kref)
+{
+ struct qla_chip_state_84xx *cs84xx =
+ container_of(kref, struct qla_chip_state_84xx, kref);
+
+ mutex_lock(&qla_cs84xx_mutex);
+ list_del(&cs84xx->list);
+ mutex_unlock(&qla_cs84xx_mutex);
+ kfree(cs84xx);
+}
+
+void
+qla84xx_put_chip(struct scsi_qla_host *ha)
+{
+ if (ha->cs84xx)
+ kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
+}
+
+static int
+qla84xx_init_chip(scsi_qla_host_t *ha)
+{
+ int rval;
+ uint16_t status[2];
+
+ mutex_lock(&ha->cs84xx->fw_update_mutex);
+
+ rval = qla84xx_verify_chip(ha, status);
+
+ mutex_unlock(&ha->cs84xx->fw_update_mutex);
+
+ return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
+ QLA_SUCCESS;
+}