Commit Graph

20 Commits

Author SHA1 Message Date
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
b891159418 Add mechanism for choosing iSER-capable ICL modules.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-24 08:44:45 +00:00
Edward Tomasz Napierala
7deb68ab2c Provide a way for ICL modules to declare they support PIM_UNMAPPED.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-21 11:10:48 +00:00
Edward Tomasz Napierala
b218ca6fdd Pass maxtags value to the ICL module. iSER needs it.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-21 10:59:36 +00:00
Edward Tomasz Napierala
257cbe3410 Rename icl_proxy.c to icl_soft_proxy.c, to make it clear it's a part
of software ICL backend.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-17 15:21:17 +00:00
Edward Tomasz Napierala
f41492b00f Add icl_conn_connect() ICL method, required for iSER.
Obtained from:	Mellanox Technologies (earlier version)
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-17 11:10:44 +00:00
Edward Tomasz Napierala
47d8fd8502 Make ICL_KERNEL_PROXY compilable.
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2016-05-17 07:56:45 +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
Edward Tomasz Napierala
321b17ec15 Add kobj interface between ICL and the rest of the iSCSI stack.
Review note - icl.c was moved to icl_soft.c.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2015-01-31 07:49:50 +00:00
Edward Tomasz Napierala
d2d52b0013 s/icl_pdu_new_bhs/icl_pdu_new/; no functional changes, just a little
nicer code.

Sponsored by:	The FreeBSD Foundation
2014-11-03 11:15:51 +00:00
Alexander Motin
259f12da87 Make iSCSI connection close somewhat less aggressive.
It allows to push out some final data from the send queue to the socket
before its close.  In particular, it increases chances for logout response
to be delivered to the initiator.
2014-10-09 09:12:08 +00:00
Edward Tomasz Napierala
8eab95d646 Properly pass the initiator address when running in proxy mode.
Sponsored by:	The FreeBSD Foundation
2014-04-16 11:00:10 +00:00
Edward Tomasz Napierala
8cab2ed4cd Properly identify target portal when running in proxy mode. While here,
remove CTL_ISCSI_CLOSE, it wasn't used or implemented anyway.

Sponsored by:	The FreeBSD Foundation
2014-04-16 10:29:34 +00:00
Edward Tomasz Napierala
c485ab142f Rework the iSCSI PDU transmit code to avoid lock contention and coalesce
PDUs before sending.

Sponsored by:	The FreeBSD Foundation
2014-04-04 15:49:37 +00:00
Edward Tomasz Napierala
16c158a562 We don't need TAILQ for iSCSI PDUs; STAILQ is enough.
Sponsored by:	The FreeBSD Foundation
2014-04-04 08:43:23 +00:00
Edward Tomasz Napierala
ecba49ddfc Instead of "icltx" and "iclrx", use thread names with prefix from upper
layer, so that one can see which side of the stack the threads are for.

Sponsored by:	The FreeBSD Foundation
2014-04-01 21:47:22 +00:00
Edward Tomasz Napierala
6ed8f5d236 Get rid of ICL lock; use upper-layer (initiator or target) lock instead.
This avoids extra locking in icl_pdu_queue(); the upper layer needs to call
it while holding its own lock anyway, to avoid sending PDUs out of order.

Sponsored by:	The FreeBSD Foundation
2014-04-01 21:40:46 +00:00
Edward Tomasz Napierala
717f4815f3 Move the ic_outstanding_count under #ifdef DIAGNOSTIC.
Sponsored by:	The FreeBSD Foundation
2014-03-25 19:17:22 +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