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57 lines
1.5 KiB
57 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef TARGET_CORE_RD_H |
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#define TARGET_CORE_RD_H |
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#include <linux/module.h> |
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#include <linux/types.h> |
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#include <target/target_core_base.h> |
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#define RD_HBA_VERSION "v4.0" |
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#define RD_MCP_VERSION "4.0" |
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/* Largest piece of memory kmalloc can allocate */ |
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#define RD_MAX_ALLOCATION_SIZE 65536 |
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#define RD_DEVICE_QUEUE_DEPTH 32 |
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#define RD_MAX_DEVICE_QUEUE_DEPTH 128 |
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#define RD_BLOCKSIZE 512 |
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/* Used in target_core_init_configfs() for virtual LUN 0 access */ |
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int __init rd_module_init(void); |
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void rd_module_exit(void); |
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struct rd_dev_sg_table { |
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u32 page_start_offset; |
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u32 page_end_offset; |
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u32 rd_sg_count; |
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struct scatterlist *sg_table; |
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} ____cacheline_aligned; |
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#define RDF_HAS_PAGE_COUNT 0x01 |
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#define RDF_NULLIO 0x02 |
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#define RDF_DUMMY 0x04 |
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struct rd_dev { |
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struct se_device dev; |
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u32 rd_flags; |
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/* Unique Ramdisk Device ID in Ramdisk HBA */ |
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u32 rd_dev_id; |
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/* Total page count for ramdisk device */ |
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u32 rd_page_count; |
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/* Number of SG tables in sg_table_array */ |
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u32 sg_table_count; |
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/* Number of SG tables in sg_prot_array */ |
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u32 sg_prot_count; |
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/* Array of rd_dev_sg_table_t containing scatterlists */ |
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struct rd_dev_sg_table *sg_table_array; |
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/* Array of rd_dev_sg_table containing protection scatterlists */ |
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struct rd_dev_sg_table *sg_prot_array; |
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/* Ramdisk HBA device is connected to */ |
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struct rd_host *rd_host; |
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} ____cacheline_aligned; |
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struct rd_host { |
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u32 rd_host_dev_id_count; |
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u32 rd_host_id; /* Unique Ramdisk Host ID */ |
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} ____cacheline_aligned; |
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#endif /* TARGET_CORE_RD_H */
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