Commit Graph

18 Commits

Author SHA1 Message Date
Edward Tomasz Napierala
bce7ee9d41 Drop "All rights reserved" from all my stuff. This includes
Foundation copyrights, approved by emaste@.  It does not include
files which carry other people's copyrights; if you're one
of those people, feel free to make similar change.

Reviewed by:	emaste, imp, gbe (manpages)
Differential Revision:	https://reviews.freebsd.org/D26980
2020-10-28 13:46:11 +00:00
Richard Scheffenegger
4dfbcffbb9 Add network QoS support for PCP to iscsi initiator.
Make the Ethernet PCP codepoint configurable
for L2 local traffic, to allow lower latency for
iSCSI block IO. This addresses the initiator
side only.

Reviewed by:	mav, trasz, bcr
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D26739
2020-10-24 21:07:13 +00:00
Alexander Motin
7dbbd1aeae Negotiate iSCSIProtocolLevel of 2 (RFC 7144) in initiator.
It does not change anything immediately, but allows further support of
Command Priority, Status Qualifier and new task management functions.

MFC after:	1 month
Sponsored by:	iXsystems, Inc.
2020-10-22 20:26:27 +00:00
Richard Scheffenegger
bfabdade5c Add DSCP support for network QoS to iscsi initiator.
Allow the DSCP codepoint also to be configurable
for the traffic in the direction from the initiator
to the target, such that writes and any requests
are also treated in the appropriate QoS class.

Reviewed by:	mav
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D26714
2020-10-09 14:33:09 +00:00
Pedro F. Giffuni
718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00
Navdeep Parhar
97b84d344d 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
Edward Tomasz Napierala
66ab9d1591 Consistently use 'unsigned int' for session IDs.
MFC after:	1 month
2016-06-09 13:04:57 +00:00
Edward Tomasz Napierala
aede1e09cf Add some spares to structs used by iscsi(4), to avoid ABI problems
during 11-STABLE.

MFC after:	1 month
2016-06-09 11:39:50 +00:00
Edward Tomasz Napierala
4e5408f10c 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
Edward Tomasz Napierala
ba165a31b3 Add "iscsictl -e". Among other things, it makes it possible to perform
discovery without attaching to the targets ("iscsictl -Ad ... -e off"),
and then attach to selected ones ("iscsictl -Mi ... -e on").

PR:		204129
MFC after:	1 month
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D6633
2016-05-31 11:32:07 +00:00
Edward Tomasz Napierala
82babffba9 Make it possible to set (via iscsi.conf(5)) and query (via iscsictl -v)
initiator iSCSI offload.  Pass maximum data segment size supported by
chosen offload module to iscsid(8), and make iscsid(8) not try to negotiate
anything larger than that.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-02-05 06:37:59 +00:00
Alexander Motin
ffe82e05b3 Make iSCSI initiator keep Initiator Session ID (ISID) across reconnects.
Previously ISID was changed every time, that made impossible correct
persistent reservation, because reconnected session was identified as
completely new one.

Reviewed by:	trasz
MFC after:	1 week
2014-07-06 17:37:49 +00:00
Edward Tomasz Napierala
51be90b522 Implement redirection handling in initiator.
Sponsored by:	The FreeBSD Foundation
2014-06-18 17:35:40 +00:00
Edward Tomasz Napierala
57a4f20b8d Make it possible for the initiator side to operate in both proxy
and normal mode; this makes it possible to compile with the former
by default, but use it only when neccessary.  That's especially
important for the userland part.

Sponsored by:	The FreeBSD Foundation
2014-04-16 18:23:36 +00:00
Edward Tomasz Napierala
d24546759e Get rid of ISCSIDCLOSE; it wasn't used and is redundant anyway,
because of ISCSIDFAIL.

Sponsored by:	The FreeBSD Foundation
2014-04-16 11:19:49 +00:00
Edward Tomasz Napierala
ac873bb350 Add some spare fields to structs used by the new iSCSI stack - some just
in case, some for future MC/S support.

This requires kernel and world rebuild.

Approved by:	re (blanket)
Sponsored by:	FreeBSD Foundation
2013-09-20 21:26:51 +00:00
Edward Tomasz Napierala
7843bd031a Fix several problems in the new iSCSI stack; this includes interoperability
fix for LIO (Linux target), removing possibility for the target to avoid mutual
CHAP by choosing to skip authentication altogether, and fixing truncated error
messages in iscsictl(8) output.  This also fixes several of the problems found
with Coverity.

Note that this change requires world rebuild.

Coverity CID:	1088038, 1087998, 1087990, 1088004, 1088044, 1088041, 1088040
Approved by:	re (blanket)
Sponsored by:	FreeBSD Foundation
2013-09-18 21:15:21 +00:00
Edward Tomasz Napierala
009ea47eb2 Bring in the new iSCSI target and initiator.
Reviewed by:	ken (parts)
Approved by:	re (delphij)
Sponsored by:	FreeBSD Foundation
2013-09-14 15:29:06 +00:00