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USB virt 2.6 split driver---concrete local buffer reference types

PATCH In review harry 1 participant 1 message Nov 21, 2005

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PATCH 5/17 USB virt 2.6 split driver---concrete local buffer reference types

This patch implements a local buffer reference type for kernel virtual address space and a remote buffer reference type for buffers up to 16 pages based on grant tables. These types are used by the USB driver for bulk data transfer.

Signed-off-by Harry Butterworth <[email protected]>
linux-2.6-xen-sparse/drivers/xen/xenidc/Makefile +2 -0
diff -r a7aae84b171f -r 8e86098d98b8 linux-2.6-xen-sparse/drivers/xen/xenidc/Makefile
@@ -8,3 +8,5 @@
 xenidc-objs += xenidc_remote_buffer_reference.o
 xenidc-objs += xenidc_concatenate.o
 xenidc-objs += xenidc_wrapping.o
+xenidc-objs += xenidc_grant_table.o
+xenidc-objs += xenidc_vaddress.o
linux-2.6-xen-sparse/include/asm-xen/xenidc_remote_buffer_reference.h +2 -1
diff -r a7aae84b171f -r 8e86098d98b8 linux-2.6-xen-sparse/include/asm-xen/xenidc_remote_buffer_reference.h
@@ -39,7 +39,8 @@
 
 typedef u32 xenidc_remote_buffer_reference_type;
 
-#define XENIDC_REMOTE_BUFFER_REFERENCE_TYPE_NULL 0
+#define XENIDC_REMOTE_BUFFER_REFERENCE_TYPE_NULL        0
+#define XENIDC_REMOTE_BUFFER_REFERENCE_TYPE_GRANT_TABLE 1
 
 #define XENIDC_REMOTE_BUFFER_REFERENCE_ACCESS_FLAGS_READ  1
 #define XENIDC_REMOTE_BUFFER_REFERENCE_ACCESS_FLAGS_WRITE 2
linux-2.6-xen-sparse/drivers/xen/xenidc/xenidc_grant_table.c new file +335 -0

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linux-2.6-xen-sparse/drivers/xen/xenidc/xenidc_vaddress.c new file +364 -0

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linux-2.6-xen-sparse/include/asm-xen/xenidc_grant_table.h new file +64 -0

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linux-2.6-xen-sparse/include/asm-xen/xenidc_vaddress.h new file +44 -0

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