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This is a residual of the $FreeBSD$ removal.
MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix
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- Add support for queueing and executing NVMe admin and NVM commands
via ctl_run and ctl_queue. This requires fixing a few places that
were SCSI-specific to add NVME logic.
- NVMe has much simpler command ordering requirements than SCSI. In
particular, the HBA is not required to enforce any specific ordering
for requests with overlapping LBAs. The host is required to manage
that ordering. However, fused commands (currently only COMPARE and
WRITE NVM commands can be fused) are required to be executed
atomically.
To support fused commands, make the second half of a fused command
block on the first half, and have commands submitted after a fused
command pair block on the second half.
- Add handlers and command tables for admin and NVM commands that
operate on individual namespaces and will be passed down from an
NVMe over Fabrics controller to a CTL LUN.
Reviewed by: ken, imp
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D44720
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Reviewed by: imp
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D44719
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Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
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and remove non-present symbols that are now reported by kmod_syms.awk.
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32878
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The goal of this work is to remove the explicit dependency for ctl(4)
on iscsi(4), so end-users without iscsi(4) support in the kernel can
use ctl(4) for its other functions.
This allows those without iscsi(4) support built into the kernel to use
ctl(4) as a test mechanism. As a sidenote, this was possible around the
10.0-RELEASE period, but made impossible for end-users without iscsi(4)
between 10.0-RELEASE and 11.0-RELEASE.
Automatically load cfiscsi(4) from ctladm(8) and ctld(8) for backwards
compatibility with previously releases. The automatic loading feature is
compiled into the beforementioned tools if MK_ISCSI == yes when building
world.
Add a manpage for cfiscsi(4) and refer to it in ctl(4).
Differential Revision: D10099
MFC after: 2 months
Relnotes: yes
Reviewed by: mav, trasz
Sponsored by: Dell EMC Isilon
Notes:
svn path=/head/; revision=316212
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This simplifies make output/logic
Tested with: `cd sys/modules; make ALL_MODULES=` on amd64
MFC after: 1 month
Sponsored by: Dell EMC Isilon
Notes:
svn path=/head/; revision=314651
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CTL HA functionality was originally implemented by Copan many years ago,
but large part of the sources was never published. This change includes
clean room implementation of the missing code and fixes for many bugs.
This code supports dual-node HA with ALUA in four modes:
- Active/Unavailable without interlink between nodes;
- Active/Standby with second node handling only basic LUN discovery and
reservation, synchronizing with the first node through the interlink;
- Active/Active with both nodes processing commands and accessing the
backing storage, synchronizing with the first node through the interlink;
- Active/Active with second node working as proxy, transfering all
commands to the first node for execution through the interlink.
Unlike original Copan's implementation, depending on specific hardware,
this code uses simple custom TCP-based protocol for interlink. It has
no authentication, so it should never be enabled on public interfaces.
The code may still need some polishing, but generally it is functional.
Relnotes: yes
Sponsored by: iXsystems, Inc.
Notes:
svn path=/head/; revision=287621
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It has nothing to share with too huge ctl.c other then device descriptor,
but even that may be counted as design error that may be fixed later.
At some point we may even want to have several ioctl ports.
Notes:
svn path=/head/; revision=286807
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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..
Notes:
svn path=/head/; revision=286806
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Review note - icl.c was moved to icl_soft.c.
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Notes:
svn path=/head/; revision=277963
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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.
Notes:
svn path=/head/; revision=268767
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Sponsored by: The FreeBSD Foundation
Notes:
svn path=/head/; revision=263811
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option, unbreak the lock tracing release semantic by embedding
calls to LOCKSTAT_PROFILE_RELEASE_LOCK() direclty in the inlined
version of the releasing functions for mutex, rwlock and sxlock.
Failing to do so skips the lockstat_probe_func invokation for
unlocking.
- As part of the LOCKSTAT support is inlined in mutex operation, for
kernel compiled without lock debugging options, potentially every
consumer must be compiled including opt_kdtrace.h.
Fix this by moving KDTRACE_HOOKS into opt_global.h and remove the
dependency by opt_kdtrace.h for all files, as now only KDTRACE_FRAMES
is linked there and it is only used as a compile-time stub [0].
[0] immediately shows some new bug as DTRACE-derived support for debug
in sfxge is broken and it was never really tested. As it was not
including correctly opt_kdtrace.h before it was never enabled so it
was kept broken for a while. Fix this by using a protection stub,
leaving sfxge driver authors the responsibility for fixing it
appropriately [1].
Sponsored by: EMC / Isilon storage division
Discussed with: rstone
[0] Reported by: rstone
[1] Discussed with: philip
Notes:
svn path=/head/; revision=258541
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Reviewed by: ken (parts)
Approved by: re (delphij)
Sponsored by: FreeBSD Foundation
Notes:
svn path=/head/; revision=255570
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and kern.cam.ctl.disable tunable; those were introduced as a workaround
to make it possible to boot GENERIC on low memory machines.
With ctl(4) being built as a module and automatically loaded by ctladm(8),
this makes CTL work out of the box.
Reviewed by: ken
Sponsored by: FreeBSD Foundation
Notes:
svn path=/head/; revision=249410
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- Touch options headers to make module buildable.
Reviewed by: trasz
Notes:
svn path=/head/; revision=249022
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Reviewed by: ken
Sponsored by: FreeBSD Foundation
Notes:
svn path=/head/; revision=249009
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