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https://github.com/torvalds/linux
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f002a24388
This patch bumps the default FILEIO backend FD_MAX_SECTORS value from 1024 -> 2048 in order to allow block_size=512 to handle 1M sized I/Os. The current default rejects I/Os larger than 512K in sbc_parse_cdb(): [12015.915146] SCSI OP 2ah with too big sectors 1347 exceeds backend hw_max_sectors: 1024 [12015.977744] SCSI OP 2ah with too big sectors 2048 exceeds backend hw_max_sectors: 1024 This issue is present in >= v3.5 based kernels, introduced after the removal of se_task logic. Reported-by: Viljami Ilola <azmulx@netikka.fi> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
42 lines
965 B
C
42 lines
965 B
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_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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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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/* 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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