Commit Graph

73 Commits

Author SHA1 Message Date
Alexander Motin
91be33dc78 Add to CTL initial support for CDROMs and removable devices.
Relnotes:	yes
2015-09-27 13:47:28 +00:00
Alexander Motin
9c887a4f86 Remove some duplicate, legacy, dead and questionable code. 2015-09-26 11:28:45 +00:00
Alexander Motin
d36c617616 CTL documentation update, mostly for HA. 2015-09-12 10:23:23 +00:00
Alexander Motin
fb606ebabc Remove unused target and initiator IDs. 2015-09-10 10:46:21 +00:00
Alexander Motin
a3977bea20 Allow LUN options modification via CTL_LUNREQ_MODIFY.
Not all changes take effect, but that is a different question.
2015-09-06 11:23:01 +00:00
Alexander Motin
3b6077ae3d Addition to r287455. 2015-09-04 10:14:58 +00:00
Alexander Motin
2f444d157b Drop "internal" CTL frontend.
Its idea was to be a simple initiator and execute several commands from
kernel level, but FreeBSD never had consumer for that functionality,
while its implementation polluted many unrelated places..
2015-08-15 13:34:38 +00:00
Baptiste Daroussin
dac542123b make ctdladm(8) return 0 is everything was ok.
retval is used to test the return of XML_Parse function which is ok if 1 is
returned and retval it directly returned to the main function and used as an
exit value.

if all the parsing part is done reset retval to 0 so that the command return 0
if everything ok

Differential Revision:	https://reviews.freebsd.org/D3102
Reviewed by:	trasz
MFC after:	3 days
Sponsored by:	gandi.net
2015-07-17 19:10:43 +00:00
Edward Tomasz Napierala
23902fd260 User proper terminology - iSCSI sessions, not iSCSI connections.
Sponsored by:	The FreeBSD Foundation
2015-07-03 10:04:41 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Simon J. Gerraty
98e0ffaefb Merge sync of head 2015-05-27 01:19:58 +00:00
Edward Tomasz Napierala
b853c718a9 Advertise ctlstat(8) a little better.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2015-05-22 11:59:37 +00:00
Alexander Motin
1ce31703ea Fix man page to match real option names.
MFC after:	3 days
2015-02-12 11:27:54 +00:00
Edward Tomasz Napierala
07b49a3eed Make it possible to set (via ctl.conf(5)) and query (via ctladm islist -v)
target iSCSI offload.  Add mechanism to query maximum receive data segment
size supported by chosen hardware offload module, and use it in ctld(8)
to determine the value to advertise to the other side.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-02-06 21:03:25 +00:00
Edward Tomasz Napierala
b56a6368c7 Make "ctladm islist" ignore unknown elements, so the old version
continues to work with newer kernel.

Other ctladm(8) "*list" subcommands seem to already handle it in
a reasonable way.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-02-06 14:44:29 +00:00
Alexander Motin
6b31e1302f Bring some more order into iSCSI portal group tags support.
While ctld(8) still does not allow multiple portal groups per target
to be configured, kernel should now be able to handle it.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2015-02-03 16:17:54 +00:00
Alexander Motin
920c6cbadc CTL LUN mapping rewrite.
Replace iSCSI-specific LUN mapping mechanism with new one, working for any
ports.  By default all ports are created without LUN mapping, exposing all
CTL LUNs as before.  But, if needed, LUN mapping can be manually set on
per-port basis via ctladm.  For its iSCSI ports ctld does it via ioctl(2).
The next step will be to teach ctld to work with FibreChannel ports also.

Respecting additional flexibility of the new mechanism, ctl.conf now allows
alternative syntax for LUN definition.  LUNs can now be defined in global
context, and then referenced from targets by unique name, as needed.  It
allows same LUN to be exposed several times via multiple targets.

While there, increase limit for LUNs per target in ctld from 256 to 1024.
Some initiators do not support LUNs above 255, but that is not our problem.

Discussed with:	trasz
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	iXsystems, Inc.
2015-02-01 21:50:28 +00:00
Alexander Motin
83c25ce791 Report initiator id in portlist XML in more formalized way.
MFC after:	3 days
2014-12-20 16:39:56 +00:00
Alexander Motin
fcb263a5fc Report XML parsing errors.
MFC after:	3 days
2014-12-20 16:13:31 +00:00
Alexander Motin
34961f407d Add configuration options to override physical and UNMAP blocks geometry.
While in most cases CTL should correctly fetch those values from backing
storages, there are some initiators (like MS SQL), that may not like large
physical block sizes, even if they are true.  For such cases allow override
fetched values with supported ones (like 4K).

MFC after:	1 week
2014-12-17 17:30:54 +00:00
Alexander Motin
bfbfc4a3cb Count consecutive read requests as blocking in CTL for files and ZVOLs.
Technically read requests can be executed in any order or simultaneously
since they are not changing any data.  But ZFS prefetcher goes crasy when
it receives consecutive requests from different threads.  Since prefetcher
works on level of separate blocks, instead of two consecutive 128K requests
it may receive 32 8K requests in mixed order.

This patch is more workaround then a real fix, and it does not fix all of
prefetcher problems, but it improves sequential read speed by 3-4x times
in some configurations.  On the other side it may hurt performance if
some backing store has no prefetch, that is why it is disabled by default
for raw devices.

MFC after:	2 weeks
2014-12-06 20:39:25 +00:00
Alexander Motin
001de973d5 Document r275481 changes.
MFC after:	2 weeks
2014-12-04 19:08:05 +00:00
Baptiste Daroussin
c6db8143ed Convert usr.sbin to LIBADD
Reduce overlinking
2014-11-25 16:57:27 +00:00
Simon J. Gerraty
9268022b74 Merge from head@274682 2014-11-19 01:07:58 +00:00
Alexander Motin
c3e7ba3e6d Add to CTL support for logical block provisioning threshold notifications.
For ZVOL-backed LUNs this allows to inform initiators if storage's used or
available spaces get above/below the configured thresholds.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2014-11-06 00:48:36 +00:00
Alexander Motin
6f67ce91ca Add "rpm" and "formfactor" LUN options to match istgt functionality.
MFC after:	1 week
2014-10-26 07:40:37 +00:00
Edward Tomasz Napierala
2bd282696a Whitespace fixes.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2014-10-22 09:17:17 +00:00
Alexander Motin
555e99a3bf Improve and document ctladm portlist subcommand.
Make this subcommand less FC-specific, reporting target and port addresses
in more generic way.  Also make it report list of connected initiators in
unified way, working for both FC and iSCSI, and potentially others.

MFC after:	1 week
2014-10-12 06:55:34 +00:00
Alexander Motin
19720f4113 Make ctld start even if some LUNs are unable to open backing storage.
Such LUNs will be visible to initiators, but return "not ready" status
on media access commands.  If backing storage become available later,
`ctladm modify ...` or `service ctld reload` can trigger its reopen.
2014-10-10 19:41:09 +00:00
Alexander Motin
5396f4d279 Implement software (mode page) and hardware (config) write protection. 2014-10-08 12:24:24 +00:00
Alexander Motin
ab55ae255a Implement control over command reordering via options and control mode page.
It allows to bypass range checks between UNMAP and READ/WRITE commands,
which may introduce additional delays while waiting for UNMAP parameters.
READ and WRITE commands are always processed in safe order since their
range checks are almost free.
2014-09-13 10:34:23 +00:00
Alexander Motin
8e6441d87d Add "readcache" and "writecache" LUN options to control default behavior.
Default values are "on".  Disabling requires backend to support IO_DIRECT
and IO_SYNC flags respectively, or some alternatives.
2014-09-13 08:55:22 +00:00
Simon J. Gerraty
ee7b0571c2 Merge head from 7/28 2014-08-19 06:50:54 +00:00
Alexander Motin
984a2ea91f Add support for VMWare dialect of EXTENDED COPY command, aka VAAI Clone.
This allows to clone VMs and move them between LUNs inside one storage
host without generating extra network traffic to the initiator and back,
and without being limited by network bandwidth.

LUNs participating in copy operation should have UNIQUE NAA or EUI IDs set.
For LUNs without these IDs VMWare will use traditional copy operations.

Beware: the above LUN IDs explicitly set to values non-unique from the VM
cluster point of view may cause data corruption if wrong LUN is addressed!

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2014-07-16 15:57:17 +00:00
Sergey Kandaurov
77381bd819 Fix typos. 2014-07-09 09:51:14 +00:00
Alexander Motin
409a3c1383 Add LUN options to specify 64-bit EUI and NAA identifiers. 2014-07-09 04:37:50 +00:00
Alexander Motin
1e5a8b8f4b Add support for READ FULL STATUS action of PERSISTENT RESERVE IN command. 2014-07-07 11:05:04 +00:00
Alexander Motin
027e5269c9 Burry devid port method, which was a gross hack.
Instead make ports provide wanted port and target IDs, and LUNs provide
wanted LUN IDs.  After that core Device ID VPD code only had to link all
of them together and add relative port and port group numbers.

LUN ID for iSCSI LUNs no longer created by CTL, but by ctld, and passed
to CTL as "scsiname" LUN option.  This makes LUNs to report the same set
of IDs, independently from the port through which it is accessed, as
required by SCSI specifications.
2014-07-05 19:30:20 +00:00
Alexander Motin
28450b3bfd Fix minor copy-paste bug in r268284. 2014-07-05 15:32:25 +00:00
Alexander Motin
92782c33a6 Introduce new IOCTL CTL_PORT_LIST reporting in more flexible XML format.
Leave old CTL_GET_PORT_LIST in place so far.  Garbage-collect it later.
2014-07-05 05:44:26 +00:00
Baptiste Daroussin
01c2b8ac0d use .Mt to mark up email addresses consistently (part2)
PR:		191174
Submitted by:	Franco Fichtner  <franco@lastsummer.de>
2014-06-20 09:57:27 +00:00
Joel Dahl
a7f17b076d mdoc: add missing width to Bl -tag. 2014-06-15 18:30:26 +00:00
Alexander Motin
ca7a55571c Document additional LUN/backend options. 2014-06-15 11:21:44 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
3b8f084595 Merge head 2014-04-28 07:50:45 +00:00
Edward Tomasz Napierala
630e459e51 Bump .Dd after r257379.
MFC after:	3 days
2013-10-30 11:41:28 +00:00
Edward Tomasz Napierala
abec619325 Rename '-h' option to '-p', and use "portal" instead of "host" or "address",
in order to be consistent with iSCSI terminology.  Besides, calling the
option '-h' was just wrong.

This changes usage for newly added iscsictl(8), and two newly added
subcommands to ctladm(8).  This breaks POLA between CURRENT and 10,
but since 10.0 has not been released yet, it's still ok to do.

MFC after:	3 days
Discussed with:	re (glebius)
Sponsored by:	FreeBSD Foundation
2013-10-30 11:38:46 +00:00
Simon J. Gerraty
3caf0790a8 Merge head@256284 2013-10-13 02:35:19 +00:00