1 #ifndef TARGET_CORE_RD_H
2 #define TARGET_CORE_RD_H
4 #define RD_HBA_VERSION "v4.0"
5 #define RD_DR_VERSION "4.0"
6 #define RD_MCP_VERSION "4.0"
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
15 /* Used in target_core_init_configfs() for virtual LUN 0 access */
16 int __init rd_module_init(void);
17 void rd_module_exit(void);
19 #define RRF_EMULATE_CDB 0x01
20 #define RRF_GOT_LBA 0x02
23 struct se_task rd_task;
25 /* SCSI CDB from iSCSI Command PDU */
26 unsigned char rd_scsi_cdb[TCM_MAX_COMMAND_SIZE];
27 /* Offset from start of page */
29 /* Starting page in Ramdisk for request */
31 /* Total number of pages needed for request */
33 /* Scatterlist count */
35 } ____cacheline_aligned;
37 struct rd_dev_sg_table {
38 u32 page_start_offset;
41 struct scatterlist *sg_table;
42 } ____cacheline_aligned;
44 #define RDF_HAS_PAGE_COUNT 0x01
49 /* Unique Ramdisk Device ID in Ramdisk HBA */
51 /* Total page count for ramdisk device */
53 /* Number of SG tables in sg_table_array */
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;
63 u32 rd_host_dev_id_count;
64 u32 rd_host_id; /* Unique Ramdisk Host ID */
65 } ____cacheline_aligned;
67 #endif /* TARGET_CORE_RD_H */