sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Merge ^/head r358466 through r358677.

Remove support for FreeBSD 8 systems. These workarounds and ways of rescanning
devices are no longer done.

MFHead @r350386

Sponsored by: The FreeBSD Foundation

Enforce a 4GB DMA boundary on isci(4)

This device cannot cross a 4GB boundary with DMA. Removing the
boundary in r346386 resulted in low frequency memory corruption on
machines with isci(4) control

Enforce a 4GB DMA boundary on isci(4)

This device cannot cross a 4GB boundary with DMA. Removing the
boundary in r346386 resulted in low frequency memory corruption on
machines with isci(4) controllers.

Submitted by: gallatin@
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D20910

show more ...

MFHead@r345275

isci(4): Use controller->lock for busdma tags.

isci(4) uses deferred loading. Typically on amd64 and i386 non-PAE
the tag does not create any restrictions, but on i386 PAE-tables but
non-PAE config

isci(4): Use controller->lock for busdma tags.

isci(4) uses deferred loading. Typically on amd64 and i386 non-PAE
the tag does not create any restrictions, but on i386 PAE-tables but
non-PAE configs callbacks might be used.

Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks

show more ...

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

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.

show more ...

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Merge head from 7/28

Sync to HEAD@r269943.

In rare cases, a SATA drive can stop responding to commands and trigger a
reset device task request from the driver. If the drive fails to respond
with a signature FIS, the driver would previously g

In rare cases, a SATA drive can stop responding to commands and trigger a
reset device task request from the driver. If the drive fails to respond
with a signature FIS, the driver would previously get into an endless retry
loop, stalling all I/O to the drive and keeping user processes stranded.
Instead, fail the i/o and invalidate the device if the task management
command times out. This is controllable with the sysctl and tunable
hw.isci.fail_on_task_timeout
dev.isci.0.fail_on_task_timeout

The default for these is 1.

Reviewed by: jimharris
Obtained from: Netflix, Inc.
MFC after: 2 days

show more ...

Merge fresh head.

MFC

MFC @ r241285

IFC @ r242684

Sync from head

Add support for locate LED.

While here, change ISCI_LED to ISCI_PHY since conceptually the hardware
ties the LEDs to a phy and the LEDs for a given phy cannot be controlled
independently.

Submitted

Add support for locate LED.

While here, change ISCI_LED to ISCI_PHY since conceptually the hardware
ties the LEDs to a phy and the LEDs for a given phy cannot be controlled
independently.

Submitted by: Paul Maulberger <Paul.Maulberger at gmx.de> (with modifications)

show more ...

Create led(4) device nodes mapped to isci(4) SGPIO locate LEDs.

Device nodes are in the format /dev/led/isci.busX.portY.locate.

Sponsored by: Intel
Requested by: Paul Maulberger <paul dot maulberge

Create led(4) device nodes mapped to isci(4) SGPIO locate LEDs.

Device nodes are in the format /dev/led/isci.busX.portY.locate.

Sponsored by: Intel
Requested by: Paul Maulberger <paul dot maulberger at gmx dot de>
MFC after: 1 week

show more ...

Merge head r233826 through r240095.

Fix/add support for SCSI UNMAP to ATA DSM translation.

This addresses kernel panic observed when sending SCSI UNMAP
commands to SATA disks attached to isci(4).

1) Flesh out callback routines to all

Fix/add support for SCSI UNMAP to ATA DSM translation.

This addresses kernel panic observed when sending SCSI UNMAP
commands to SATA disks attached to isci(4).

1) Flesh out callback routines to allocate/free buffers needed for
translating SCSI UNMAP data to ATA DSM data.
2) Add controller-level pool for storing buffers previously allocated
for UNMAP translation, to lessen chance of no buffer available
under memory pressure.
3) Ensure driver properly handles case where buffer pool is empty
and contigmalloc returns NULL.

Sponsored by: Intel
Reported by: Maksim Yevmenkin <max at netflix dot com>
Discussed with: scottl
MFC after: 3 days

show more ...

IFC @ r238370

IFC @ r236291.
Diff reductions to the enclosure driver made in r235911.

Merge head r233826 through r236168.

Wait until completion context unwinds before retrying CCBs that have been
queued internally. This works around issue in the isci HAL where it cannot
accept new I/O to a device after a resetting->rea

Wait until completion context unwinds before retrying CCBs that have been
queued internally. This works around issue in the isci HAL where it cannot
accept new I/O to a device after a resetting->ready state transition until
the completion context has unwound.

This issue was found by submitting non-tagged CCBs through pass(4) interface
to a SATA disk with an extremely small timeout value (5ms). This would trigger
internal resets with I/O in the isci(4) internal queues.

The small timeout value had not been intentional (and original reporter has
since changed his test to use 5sec instead), but it did uncover this corner
case that would result in a hung disk.

Sponsored by: Intel
Reported and tested by: Ravi Pokala <rpokala at panasas dot com>
Reviewed by: scottl (earlier version)
MFC after: 1 week

show more ...