0f5e2ec46d
This patch adds support for DIF protection init/format support into the FILEIO backend. It involves using a seperate $FILE.protection for storing PI that is opened via fd_init_prot() using the common pi_prot_type attribute. The actual formatting of the protection is done via fd_format_prot() using the common pi_prot_format attribute, that will populate the initial PI data based upon the currently configured pi_prot_type. Based on original FILEIO code from Sagi. v1 changes: - Fix sparse warnings in fd_init_format_buf (Fengguang) Cc: Martin K. Petersen <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#ifndef TARGET_CORE_FILE_H
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#define TARGET_CORE_FILE_H
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#define FD_VERSION "4.0"
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#define FD_MAX_DEV_NAME 256
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#define FD_MAX_DEV_PROT_NAME FD_MAX_DEV_NAME + 16
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#define FD_DEVICE_QUEUE_DEPTH 32
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#define FD_MAX_DEVICE_QUEUE_DEPTH 128
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#define FD_BLOCKSIZE 512
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#define FD_MAX_SECTORS 2048
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#define RRF_EMULATE_CDB 0x01
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#define RRF_GOT_LBA 0x02
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#define FBDF_HAS_PATH 0x01
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#define FBDF_HAS_SIZE 0x02
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#define FDBD_HAS_BUFFERED_IO_WCE 0x04
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#define FDBD_FORMAT_UNIT_SIZE 2048
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struct fd_dev {
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struct se_device dev;
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u32 fbd_flags;
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unsigned char fd_dev_name[FD_MAX_DEV_NAME];
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/* Unique Ramdisk Device ID in Ramdisk HBA */
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u32 fd_dev_id;
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/* Number of SG tables in sg_table_array */
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u32 fd_table_count;
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u32 fd_queue_depth;
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u32 fd_block_size;
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unsigned long long fd_dev_size;
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struct file *fd_file;
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struct file *fd_prot_file;
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/* FILEIO HBA device is connected to */
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struct fd_host *fd_host;
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} ____cacheline_aligned;
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struct fd_host {
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u32 fd_host_dev_id_count;
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/* Unique FILEIO Host ID */
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u32 fd_host_id;
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} ____cacheline_aligned;
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#endif /* TARGET_CORE_FILE_H */
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