Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
c66ac9db NB |
2 | #ifndef TARGET_CORE_RD_H |
3 | #define TARGET_CORE_RD_H | |
4 | ||
8dcf07be BVA |
5 | #include <linux/module.h> |
6 | #include <linux/types.h> | |
7 | #include <target/target_core_base.h> | |
8 | ||
c66ac9db | 9 | #define RD_HBA_VERSION "v4.0" |
c66ac9db NB |
10 | #define RD_MCP_VERSION "4.0" |
11 | ||
12 | /* Largest piece of memory kmalloc can allocate */ | |
13 | #define RD_MAX_ALLOCATION_SIZE 65536 | |
c66ac9db NB |
14 | #define RD_DEVICE_QUEUE_DEPTH 32 |
15 | #define RD_MAX_DEVICE_QUEUE_DEPTH 128 | |
16 | #define RD_BLOCKSIZE 512 | |
c66ac9db | 17 | |
c66ac9db NB |
18 | /* Used in target_core_init_configfs() for virtual LUN 0 access */ |
19 | int __init rd_module_init(void); | |
20 | void rd_module_exit(void); | |
21 | ||
c66ac9db NB |
22 | struct rd_dev_sg_table { |
23 | u32 page_start_offset; | |
24 | u32 page_end_offset; | |
25 | u32 rd_sg_count; | |
26 | struct scatterlist *sg_table; | |
27 | } ____cacheline_aligned; | |
28 | ||
29 | #define RDF_HAS_PAGE_COUNT 0x01 | |
52c07423 | 30 | #define RDF_NULLIO 0x02 |
c66ac9db NB |
31 | |
32 | struct rd_dev { | |
0fd97ccf | 33 | struct se_device dev; |
c66ac9db NB |
34 | u32 rd_flags; |
35 | /* Unique Ramdisk Device ID in Ramdisk HBA */ | |
36 | u32 rd_dev_id; | |
37 | /* Total page count for ramdisk device */ | |
38 | u32 rd_page_count; | |
39 | /* Number of SG tables in sg_table_array */ | |
40 | u32 sg_table_count; | |
d7e8eb5d NB |
41 | /* Number of SG tables in sg_prot_array */ |
42 | u32 sg_prot_count; | |
c66ac9db NB |
43 | /* Array of rd_dev_sg_table_t containing scatterlists */ |
44 | struct rd_dev_sg_table *sg_table_array; | |
d7e8eb5d NB |
45 | /* Array of rd_dev_sg_table containing protection scatterlists */ |
46 | struct rd_dev_sg_table *sg_prot_array; | |
c66ac9db NB |
47 | /* Ramdisk HBA device is connected to */ |
48 | struct rd_host *rd_host; | |
49 | } ____cacheline_aligned; | |
50 | ||
51 | struct rd_host { | |
52 | u32 rd_host_dev_id_count; | |
53 | u32 rd_host_id; /* Unique Ramdisk Host ID */ | |
54 | } ____cacheline_aligned; | |
55 | ||
56 | #endif /* TARGET_CORE_RD_H */ |