1#ifndef TARGET_CORE_RD_H
 2#define TARGET_CORE_RD_H
 3
 4#define RD_HBA_VERSION		"v4.0"
 5#define RD_DR_VERSION		"4.0"
 6#define RD_MCP_VERSION		"4.0"
 7
 8/* Largest piece of memory kmalloc can allocate */
 9#define RD_MAX_ALLOCATION_SIZE	65536
10#define RD_DEVICE_QUEUE_DEPTH	32
11#define RD_MAX_DEVICE_QUEUE_DEPTH 128
12#define RD_BLOCKSIZE		512
13#define RD_MAX_SECTORS		1024
14
15/* Used in target_core_init_configfs() for virtual LUN 0 access */
16int __init rd_module_init(void);
17void rd_module_exit(void);
18
19#define RRF_EMULATE_CDB		0x01
20#define RRF_GOT_LBA		0x02
21
22struct rd_request {
23	struct se_task	rd_task;
24
25	/* SCSI CDB from iSCSI Command PDU */
26	unsigned char	rd_scsi_cdb[TCM_MAX_COMMAND_SIZE];
27	/* Offset from start of page */
28	u32		rd_offset;
29	/* Starting page in Ramdisk for request */
30	u32		rd_page;
31	/* Total number of pages needed for request */
32	u32		rd_page_count;
33	/* Scatterlist count */
34	u32		rd_size;
35} ____cacheline_aligned;
36
37struct rd_dev_sg_table {
38	u32		page_start_offset;
39	u32		page_end_offset;
40	u32		rd_sg_count;
41	struct scatterlist *sg_table;
42} ____cacheline_aligned;
43
44#define RDF_HAS_PAGE_COUNT	0x01
45
46struct rd_dev {
47	int		rd_direct;
48	u32		rd_flags;
49	/* Unique Ramdisk Device ID in Ramdisk HBA */
50	u32		rd_dev_id;
51	/* Total page count for ramdisk device */
52	u32		rd_page_count;
53	/* Number of SG tables in sg_table_array */
54	u32		sg_table_count;
55	u32		rd_queue_depth;
56	/* Array of rd_dev_sg_table_t containing scatterlists */
57	struct rd_dev_sg_table *sg_table_array;
58	/* Ramdisk HBA device is connected to */
59	struct rd_host *rd_host;
60} ____cacheline_aligned;
61
62struct rd_host {
63	u32		rd_host_dev_id_count;
64	u32		rd_host_id;		/* Unique Ramdisk Host ID */
65} ____cacheline_aligned;
66
67#endif /* TARGET_CORE_RD_H */

 1#ifndef TARGET_CORE_RD_H
 2#define TARGET_CORE_RD_H
 3
 4#define RD_HBA_VERSION		"v4.0"
 
 5#define RD_MCP_VERSION		"4.0"
 6
 7/* Largest piece of memory kmalloc can allocate */
 8#define RD_MAX_ALLOCATION_SIZE	65536
 9#define RD_DEVICE_QUEUE_DEPTH	32
10#define RD_MAX_DEVICE_QUEUE_DEPTH 128
11#define RD_BLOCKSIZE		512
 
12
13/* Used in target_core_init_configfs() for virtual LUN 0 access */
14int __init rd_module_init(void);
15void rd_module_exit(void);
16
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
17struct rd_dev_sg_table {
18	u32		page_start_offset;
19	u32		page_end_offset;
20	u32		rd_sg_count;
21	struct scatterlist *sg_table;
22} ____cacheline_aligned;
23
24#define RDF_HAS_PAGE_COUNT	0x01
25
26struct rd_dev {
 
27	u32		rd_flags;
28	/* Unique Ramdisk Device ID in Ramdisk HBA */
29	u32		rd_dev_id;
30	/* Total page count for ramdisk device */
31	u32		rd_page_count;
32	/* Number of SG tables in sg_table_array */
33	u32		sg_table_count;
 
34	/* Array of rd_dev_sg_table_t containing scatterlists */
35	struct rd_dev_sg_table *sg_table_array;
36	/* Ramdisk HBA device is connected to */
37	struct rd_host *rd_host;
38} ____cacheline_aligned;
39
40struct rd_host {
41	u32		rd_host_dev_id_count;
42	u32		rd_host_id;		/* Unique Ramdisk Host ID */
43} ____cacheline_aligned;
44
45#endif /* TARGET_CORE_RD_H */