Commit Graph

80 Commits

Author SHA1 Message Date
mav
a40b1f34e8 Add LU option to control reported provisioning type.
MFC after:	2 weeks
2016-10-15 14:40:34 +00:00
mav
b9d876eafe Add LUN options to limit UNMAP and WRITE SAME sizes.
CTL itself has no limits on on UNMAP and WRITE SAME sizes.  But depending
on backends large requests may take too much time.  To avoid that new
configuration options allow to hint initiator maximal sizes it should not
exceed.

MFC after:	2 weeks
2016-10-15 10:29:33 +00:00
np
2e36f0c10a Make the iSCSI parameter negotiation more flexible.
Decouple the send and receive limits on the amount of data in a single
iSCSI PDU.  MaxRecvDataSegmentLength is declarative, not negotiated, and
is direction-specific so there is no reason for both ends to limit
themselves to the same min(initiator, target) value in both directions.

Allow iSCSI drivers to report their send, receive, first burst, and max
burst limits explicitly instead of using hardcoded values or trying to
derive all of them from the receive limit (which was the only limit
reported by the drivers prior to this change).

Display the send and receive limits separately in the userspace iSCSI
utilities.

Reviewed by:	jpaetzel@ (earlier version), trasz@
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7279
2016-08-25 05:22:53 +00:00
trasz
5ae4adccba Remove duplicated semicolons.
MFC after:	1 month
2016-06-05 08:51:56 +00:00
trasz
c29ddfe43a Report negotiated MaxBurstLength and FirstBurstLength in "iscsictl -v"
and "ctladm islist -v" outputs.

MFC after:	1 month
2016-06-05 08:48:37 +00:00
pfg
c62d640ded usr.sbin: minor spelling fixes on comments.
No functional change.
2016-05-01 16:41:25 +00:00
trasz
7ff471c8bb Fix typo.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-02-29 16:50:28 +00:00
mav
ba6084f689 Add to CTL initial support for CDROMs and removable devices.
Relnotes:	yes
2015-09-27 13:47:28 +00:00
mav
70f018005e Remove some duplicate, legacy, dead and questionable code. 2015-09-26 11:28:45 +00:00
mav
ceb1e1488d CTL documentation update, mostly for HA. 2015-09-12 10:23:23 +00:00
mav
1d4ff31d06 Remove unused target and initiator IDs. 2015-09-10 10:46:21 +00:00
mav
037d401b2c 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
mav
ab2fecaad6 Addition to r287455. 2015-09-04 10:14:58 +00:00
mav
c9d448ea79 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
bapt
b6b17c200a 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
trasz
3ddbb2b381 User proper terminology - iSCSI sessions, not iSCSI connections.
Sponsored by:	The FreeBSD Foundation
2015-07-03 10:04:41 +00:00
sjg
008d7c831f 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
sjg
75a137820d dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
sjg
65145fa4c8 Merge sync of head 2015-05-27 01:19:58 +00:00
trasz
38f5a1dde7 Advertise ctlstat(8) a little better.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2015-05-22 11:59:37 +00:00
mav
fa05d73d31 Fix man page to match real option names.
MFC after:	3 days
2015-02-12 11:27:54 +00:00
trasz
ba70dc0f4d 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
trasz
4876ad42c5 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
mav
4bbf5a53e0 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
mav
8adb86862b 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
mav
4dfe4f5840 Report initiator id in portlist XML in more formalized way.
MFC after:	3 days
2014-12-20 16:39:56 +00:00
mav
b0b1f5cb6c Report XML parsing errors.
MFC after:	3 days
2014-12-20 16:13:31 +00:00
mav
7582ed74ee 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
mav
55dd4e9f5f 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
mav
0a499c83bb Document r275481 changes.
MFC after:	2 weeks
2014-12-04 19:08:05 +00:00
bapt
a191ba5195 Convert usr.sbin to LIBADD
Reduce overlinking
2014-11-25 16:57:27 +00:00
sjg
b137080f19 Merge from head@274682 2014-11-19 01:07:58 +00:00
mav
e22f45febc 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
mav
7e130945ae Add "rpm" and "formfactor" LUN options to match istgt functionality.
MFC after:	1 week
2014-10-26 07:40:37 +00:00
trasz
853fc00c2a Whitespace fixes.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2014-10-22 09:17:17 +00:00
mav
e3e9d7f585 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
mav
96aaf8224f 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
mav
c561a7a086 Implement software (mode page) and hardware (config) write protection. 2014-10-08 12:24:24 +00:00
mav
01d0aad798 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
mav
20d551b720 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
sjg
d7cd1d425c Merge head from 7/28 2014-08-19 06:50:54 +00:00
mav
7b21dd3b31 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
pluknet
ba39fb2dae Fix typos. 2014-07-09 09:51:14 +00:00
mav
6ecd291879 Add LUN options to specify 64-bit EUI and NAA identifiers. 2014-07-09 04:37:50 +00:00
mav
db5360cb99 Add support for READ FULL STATUS action of PERSISTENT RESERVE IN command. 2014-07-07 11:05:04 +00:00
mav
dd9568e892 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
mav
d7ab4b5c0d Fix minor copy-paste bug in r268284. 2014-07-05 15:32:25 +00:00
mav
28432b0ce5 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
bapt
c0cd28f928 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
3dd5b73a33 mdoc: add missing width to Bl -tag. 2014-06-15 18:30:26 +00:00