}
/**
- * megasas_fire_cmd_fusion - Sends command to the FW
- * @instance: Adapter soft state
- * @req_desc: 64bit Request descriptor
- *
- * Perform PCI Write.
+ * megasas_write_64bit_req_desc - PCI writes 64bit request descriptor
+ * @instance: Adapter soft state
+ * @req_desc: 64bit Request descriptor
*/
-
static void
-megasas_fire_cmd_fusion(struct megasas_instance *instance,
+megasas_write_64bit_req_desc(struct megasas_instance *instance,
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc)
{
#if defined(writeq) && defined(CONFIG_64BIT)
u64 req_data = (((u64)le32_to_cpu(req_desc->u.high) << 32) |
le32_to_cpu(req_desc->u.low));
-
writeq(req_data, &instance->reg_set->inbound_low_queue_port);
#else
unsigned long flags;
#endif
}
+/**
+ * megasas_fire_cmd_fusion - Sends command to the FW
+ * @instance: Adapter soft state
+ * @req_desc: 32bit or 64bit Request descriptor
+ *
+ * Perform PCI Write. AERO SERIES supports 32 bit Descriptor.
+ * Prior to AERO_SERIES support 64 bit Descriptor.
+ */
+static void
+megasas_fire_cmd_fusion(struct megasas_instance *instance,
+ union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc)
+{
+ if (instance->atomic_desc_support)
+ writel(le32_to_cpu(req_desc->u.low),
+ &instance->reg_set->inbound_single_queue_port);
+ else
+ megasas_write_64bit_req_desc(instance, req_desc);
+}
+
/**
* megasas_fusion_update_can_queue - Do all Adapter Queue depth related calculations here
* @instance: Adapter soft state
break;
}
- megasas_fire_cmd_fusion(instance, &req_desc);
+ /* For AERO also, IOC_INIT requires 64 bit descriptor write */
+ megasas_write_64bit_req_desc(instance, &req_desc);
wait_and_poll(instance, cmd, MFI_IO_TIMEOUT_SECS);
goto fail_fw_init;
}
+ if (instance->adapter_type >= AERO_SERIES) {
+ scratch_pad_1 = megasas_readl
+ (instance, &instance->reg_set->outbound_scratch_pad_1);
+
+ instance->atomic_desc_support =
+ (scratch_pad_1 & MR_ATOMIC_DESCRIPTOR_SUPPORT_OFFSET) ? 1 : 0;
+
+ dev_info(&instance->pdev->dev, "FW supports atomic descriptor\t: %s\n",
+ instance->atomic_desc_support ? "Yes" : "No");
+ }
+
return 0;
fail_fw_init: