tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#define RDF_NULLIO 0x02
26
27struct rd_dev {
28 struct se_device dev;
29 u32 rd_flags;
30 /* Unique Ramdisk Device ID in Ramdisk HBA */
31 u32 rd_dev_id;
32 /* Total page count for ramdisk device */
33 u32 rd_page_count;
34 /* Number of SG tables in sg_table_array */
35 u32 sg_table_count;
36 /* Array of rd_dev_sg_table_t containing scatterlists */
37 struct rd_dev_sg_table *sg_table_array;
38 /* Ramdisk HBA device is connected to */
39 struct rd_host *rd_host;
40} ____cacheline_aligned;
41
42struct rd_host {
43 u32 rd_host_dev_id_count;
44 u32 rd_host_id; /* Unique Ramdisk Host ID */
45} ____cacheline_aligned;
46
47#endif /* TARGET_CORE_RD_H */