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svn+ssh://yanb123@svn.code.sf.net/p/scst/svn/branches/3.0.x
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r5799 | bvassche | 2014-09-12 14:17:49 +0300 (Fri, 12 Sep 2014) | 1 line
fcst/Makefile: Add release-archive target (merge r5798 from trunk)
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r5800 | bvassche | 2014-09-12 14:19:21 +0300 (Fri, 12 Sep 2014) | 1 line
fcst: Change version number from 0.3 into 3.0.0
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r5803 | vlnb | 2014-09-13 04:15:12 +0300 (Sat, 13 Sep 2014) | 9 lines
Merged revisions 5802 via svnmerge from
svn+ssh://vlnb@svn.code.sf.net/p/scst/svn/trunk
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r5802 | vlnb | 2014-09-12 18:13:29 -0700 (Fri, 12 Sep 2014) | 3 lines
Fix autofinding SCST headers in fileio_tgt
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r5807 | bvassche | 2014-09-15 15:32:02 +0300 (Mon, 15 Sep 2014) | 1 line
ib_srpt: Make "make -j<n> install" work for n >= 2 if "make all" has not been run first (merge r5806 from trunk)
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r5809 | bvassche | 2014-09-16 14:26:10 +0300 (Tue, 16 Sep 2014) | 1 line
scst/src/Makefile: Make "make install" without prior "make" work (merge r5808 from trunk)
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r5812 | bvassche | 2014-09-17 14:14:38 +0300 (Wed, 17 Sep 2014) | 1 line
scst_vdisk: Insert a blank line (merge r5810 from trunk)
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r5813 | bvassche | 2014-09-17 14:18:17 +0300 (Wed, 17 Sep 2014) | 2 lines
vdisk_blockio: Make large COMPARE AND WRITE requests work for stacked block devices (merge r5811 from trunk)
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r5815 | vlnb | 2014-09-20 08:52:06 +0300 (Sat, 20 Sep 2014) | 3 lines
Version updated
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git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.0.x-iser@5818 d57e44dd-8a1f-0410-8b47-8ef2f437770f
User space FILEIO handler ========================= Version 3.0.0, 19 September 2014 -------------------------------- User space program fileio_tgt uses interface of SCST's scst_user dev handler and allows to see how it works in various modes. Fileio_tgt provides mostly the same functionality as the kernel space SCST's scst_vdisk handler with the only exceptions that it supports O_DIRECT mode and doesn't support BLOCKIO one. O_DIRECT mode is basically the same as BLOCKIO, but also supports files, so for some loads it could be significantly faster, than the regular FILEIO access. All the words about BLOCKIO mode from SCST's README file apply to O_DIRECT mode as well. Installation ------------ Make sure you have installed SCST core, if not, see its README file for details how to do it. Then run "make all install" For the best performance make sure you don't have any debug options (i.e. lines like "CFLAGS += -DDEBUG" containing "-DDEBUG*" string) enabled in the Makefile. Usage ----- Load scst_user module using modprobe or insmod, then start fileio_tgt program. It can be used as the following: fileio_tgt [OPTION] name path Where: - OPTION - one or several not required options, see below. - name - name of the virtual device as it will be seen by SCST and used in the subsequent access management using the corresponding SCST interface. - path - path to the device file. The following options are supported: -b or --block=size: block size, must be power of 2 and >=512 -e or --threads=count: number of threads -t or --write_through: write through mode -r or --read_only: read only -o or --direct: O_DIRECT mode, see above for details -n or --nullio: NULLIO mode, see SCST's README file for details -c or --nv_cache: NV_CACHE mode, see SCST's README file for details -p or --parse=type: parse type, one of "std" (default), "call" or "excpt" -f or --on_free=type: on free call type, one of "ignore" (default) or "call" -m or --mem_reuse=type: Memory reuse type, one of "all" (default), "read", "write" or "none" -s or --prio_thread: Use separate thread for mgmt (prio) commands -l or --non_blocking: Use non-blocking operations Also in the debug builds the following options are supported: -d or --debug=level: debug tracing level -g or --debug_tm_ignore: turn on DEBUG_TM_IGNORE, one of the task management debugging features If you don't understand some these options, don't use them, default values provide the best performance. Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net