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eb144f2e6f
- Cleanups git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@979 d57e44dd-8a1f-0410-8b47-8ef2f437770f
39 lines
1.5 KiB
Plaintext
39 lines
1.5 KiB
Plaintext
To be done
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- See http://scst.sourceforge.net/contributing.html
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- Reimplement VDISK handler with usage of async. read/write operations
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(in order to avoid unnecessary context switches) and direct access to
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the page cache (in order to avoid data copy between it and internal
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buffers). Requires modifications of the kernel.
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- Dynamic I/O flow control, when the device queue depth on the target
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will be dynamically decreased/increased based on how slow/fast the
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backstorage speed comparing to the target link for current IO
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pattern.
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- Fix in-kernel O_DIRECT mode.
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- Close integration with Linux initiator SCSI mid-level, including
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queue types (simple, ordered, etc.) and local initiators (sd, st, sg,
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etc.) support. Requires modifications of the kernel.
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- Improve task management and Unit Attention conditions handling
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using ACA in order to make them always reliable. Honoring NACA, QErr,
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TST, UA_INTLCK_CTRL bits. Requires deep modifications of the kernel.
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- Better handle of devices DMA restrictions, where needed.
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- Small ToDo's spread all over the code.
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- Investigate possible missed emulated UA cases.
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- Additional ability for target drivers to ask for command's retry also
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after xmit_response() and rdy_to_xfer() returned (for example, if a
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command was successfully sent to the target card, but later it was
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returned by the card with BUSY completion status).
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- Advanced SCSI commands support: COPY, EXTENDED COPY, PERSISTENT
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RESERVE IN/OUT, third party RESERVE, etc.
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