28 /* Not a real protocol.  Used to generate ring structs which contain
30  * compiler-checkable way to use common struct elements, so we can
31  * avoid using switch(protocol) in a number of places.  */
39 /* i386 protocol version */
45 	uint64_t       id;           /* private guest value, echoed in resp  */  member
50 	uint64_t        id;              /* copied from request */  member
58 /* x86_64 protocol version */
63 	uint64_t       __attribute__((__aligned__(8))) id;  member
68 	uint64_t       __attribute__((__aligned__(8))) id;  member
81  * regardless of the protocol in use, based on the ring size.  This constant
82  * facilitates resource pre-allocation in backend drivers since the size is
92  * for a given instance regardless of the protocol in use.
116 	dst->operation = src->operation;  in blkif_get_x86_32_req()
117 	dst->nr_segments = src->nr_segments;  in blkif_get_x86_32_req()
118 	dst->handle = src->handle;  in blkif_get_x86_32_req()
119 	dst->id = src->id;  in blkif_get_x86_32_req()
120 	dst->sector_number = src->sector_number;  in blkif_get_x86_32_req()
122 	if (n > dst->nr_segments)  in blkif_get_x86_32_req()
123 		n = dst->nr_segments;  in blkif_get_x86_32_req()
125 		dst->seg[i] = src->seg[i];  in blkif_get_x86_32_req()
131 	dst->operation = src->operation;  in blkif_get_x86_64_req()
132 	dst->nr_segments = src->nr_segments;  in blkif_get_x86_64_req()
133 	dst->handle = src->handle;  in blkif_get_x86_64_req()
134 	dst->id = src->id;  in blkif_get_x86_64_req()
135 	dst->sector_number = src->sector_number;  in blkif_get_x86_64_req()
137 	if (n > dst->nr_segments)  in blkif_get_x86_64_req()
138 		n = dst->nr_segments;  in blkif_get_x86_64_req()
140 		dst->seg[i] = src->seg[i];  in blkif_get_x86_64_req()