+/**
+ * megasas_setup_jbod_map - setup jbod map for FP seq_number.
+ * @instance: Adapter soft state
+ * @is_probe: Driver probe check
+ *
+ * Return 0 on success.
+ */
+void
+megasas_setup_jbod_map(struct megasas_instance *instance)
+{
+ int i;
+ struct fusion_context *fusion = instance->ctrl_context;
+ u32 pd_seq_map_sz;
+
+ pd_seq_map_sz = sizeof(struct MR_PD_CFG_SEQ_NUM_SYNC) +
+ (sizeof(struct MR_PD_CFG_SEQ) * (MAX_PHYSICAL_DEVICES - 1));
+
+ if (reset_devices || !fusion ||
+ !instance->ctrl_info->adapterOperations3.useSeqNumJbodFP) {
+ dev_info(&instance->pdev->dev,
+ "Jbod map is not supported %s %d\n",
+ __func__, __LINE__);
+ instance->use_seqnum_jbod_fp = false;
+ return;
+ }
+
+ if (fusion->pd_seq_sync[0])
+ goto skip_alloc;
+
+ for (i = 0; i < JBOD_MAPS_COUNT; i++) {
+ fusion->pd_seq_sync[i] = dma_alloc_coherent
+ (&instance->pdev->dev, pd_seq_map_sz,
+ &fusion->pd_seq_phys[i], GFP_KERNEL);
+ if (!fusion->pd_seq_sync[i]) {
+ dev_err(&instance->pdev->dev,
+ "Failed to allocate memory from %s %d\n",
+ __func__, __LINE__);
+ if (i == 1) {
+ dma_free_coherent(&instance->pdev->dev,
+ pd_seq_map_sz, fusion->pd_seq_sync[0],
+ fusion->pd_seq_phys[0]);
+ fusion->pd_seq_sync[0] = NULL;
+ }
+ instance->use_seqnum_jbod_fp = false;
+ return;
+ }
+ }
+
+skip_alloc:
+ if (!megasas_sync_pd_seq_num(instance, false) &&
+ !megasas_sync_pd_seq_num(instance, true))
+ instance->use_seqnum_jbod_fp = true;
+ else
+ instance->use_seqnum_jbod_fp = false;
+}
+