On Mon, May 20, 2019 at 10:19 PM Eddie James <eajames@xxxxxxxxxxxxx> wrote:
diff --git a/include/uapi/linux/aspeed-xdma.h b/include/uapi/linux/aspeed-xdma.hIf this is a user space interface, please remove the holes in the
new file mode 100644
index 0000000..2a4bd13
--- /dev/null
+++ b/include/uapi/linux/aspeed-xdma.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright IBM Corp 2019 */
+
+#ifndef _UAPI_LINUX_ASPEED_XDMA_H_
+#define _UAPI_LINUX_ASPEED_XDMA_H_
+
+#include <linux/types.h>
+
+/*
+ * aspeed_xdma_op
+ *
+ * upstream: boolean indicating the direction of the DMA operation; upstream
+ * means a transfer from the BMC to the host
+ *
+ * host_addr: the DMA address on the host side, typically configured by PCI
+ * subsystem
+ *
+ * len: the size of the transfer in bytes; it should be a multiple of 16 bytes
+ */
+struct aspeed_xdma_op {
+ __u32 upstream;
+ __u64 host_addr;
+ __u32 len;
+};
+
+#endif /* _UAPI_LINUX_ASPEED_XDMA_H_ */
data structure.
I don't see how this is actually used in this patch, maybe you meant
the definition to be part of another patch?
Arnd