This patch will add task management support in driver. Below is high level description:
If a SCSI IO times out, then before initiating OCR, now the driver will try to send a
target reset to the parti

This patch will add task management support in driver. Below is high level description:
If a SCSI IO times out, then before initiating OCR, now the driver will try to send a
target reset to the particular target for which the IO is timed out. If that also fails,
then the driver will initiate OCR.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: Broadcom Limited/AVAGO Technologies

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Add sanity check in IO and IOCTL path not to process command further if controller is in
HW_CRITICAL_ERROR.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Ka

Add sanity check in IO and IOCTL path not to process command further if controller is in
HW_CRITICAL_ERROR.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: Broadcom Limited/AVAGO Technologies

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Use a variable to indicate Gen3 controllers and remove all PCI ids based
checks used for gen3 controllers.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kas

Use a variable to indicate Gen3 controllers and remove all PCI ids based
checks used for gen3 controllers.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: Broadcom Limited/AVAGO Technologies

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Problem statement:
MFI linked list in megaraid_sas driver is used for mfi-mpt pass-through commands.
This list can be corrupted due to many possible race conditions in driver and
eventually we may se

Problem statement:
MFI linked list in megaraid_sas driver is used for mfi-mpt pass-through commands.
This list can be corrupted due to many possible race conditions in driver and
eventually we may see kernel panic.

One example -
MFI frame is freed from calling process as driver send command via polling method and interrupt
for that command comes after driver free mfi frame (actually even after some other context reuse
the mfi frame). When driver receive MPT frame in ISR, driver will be using the index of MFI and
access that MFI frame and finally in-used MFI frames list will be corrupted.

High level description of new solution -
Free MFI and MPT command from same context.
Free both the command either from process (from where mfi-mpt pass-through was called) or from
ISR context. Do not split freeing of MFI and MPT, because it creates the race condition which
will do MFI/MPT list.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: Broadcom Limited/AVAGO Technologies

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Added support for Avago/Broadcom Cutlass(12 Gbps- 16 port count) controllers.

Submitted by: Sumit Saxena <Sumit.Saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC

Added support for Avago/Broadcom Cutlass(12 Gbps- 16 port count) controllers.

Submitted by: Sumit Saxena <Sumit.Saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AVAGO/BROADCOM Limited

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Following bugs fixed as part of this patch:
.Kernel panic while collecting kdump (reported by Doug A.)
.NULL pointer dereference at sertain places
.Removed dead codes

Submitted by: Sumit Saxena <s

Following bugs fixed as part of this patch:
.Kernel panic while collecting kdump (reported by Doug A.)
.NULL pointer dereference at sertain places
.Removed dead codes

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AVAGO Technologies

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Added supprot for Avago Intruder controller.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AV

Added supprot for Avago Intruder controller.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AVAGO Technologies

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This patch implements driver support for 1MB IO size.

NOTE:
The FreeBSD system currently restricts the MAX IO size to MAXPHYS which
in turn is 128KB. We tested the 1MB IO by converting the MAXPHYS t

This patch implements driver support for 1MB IO size.

NOTE:
The FreeBSD system currently restricts the MAX IO size to MAXPHYS which
in turn is 128KB. We tested the 1MB IO by converting the MAXPHYS to 1MB.

Following is the mail reference:
http://lists.freebsd.org/pipermail/freebsd-scsi/2015-January/006568.html

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AVAGO Technologies

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Similar to RAID map for Logical Drives, now JBOD map has been introduced for
JBODs. Driver has to sync the JBOD map with firmware and use sequence number
as a reference for JBOD FastPath I/O's.

Subm

Similar to RAID map for Logical Drives, now JBOD map has been introduced for
JBODs. Driver has to sync the JBOD map with firmware and use sequence number
as a reference for JBOD FastPath I/O's.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AVAGO Technologies

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There was no ERROR handling for firmware command TIMEOUT. This patch
takes care of any firmware command timeout scenarios by initiating OCR.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>

There was no ERROR handling for firmware command TIMEOUT. This patch
takes care of any firmware command timeout scenarios by initiating OCR.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by: Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after: 3 days
Sponsored by: AVAGO Technologies

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sys/dev: minor spelling fixes.

Most affect comments, very few have user-visible effects.

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from HEAD

MFH: r282315-r282534

Sponsored by: The FreeBSD Foundation

Corrected indentation on conflicted source files.

Reviewed by: ambrisko
MFC after: 2 weeks
Sponsored by: AVAGO Technologies

Configured the mrsas(4) driver to support UNMAPPED I/O and updated driver version.

Reviewed by: ambrisko
MFC after: 2 weeks
Sponsored by: AVAGO Technologies

1. All LSI namings are converted to AVAGO Tech.
2. Fix in AEN path(suggested by John Baldwin).
3. Fix IOCTL path w.r.t Sense key handling

Reviewed by: ambrisko
MFC after: 2 weeks
Sponsored by: AVAGO

1. All LSI namings are converted to AVAGO Tech.
2. Fix in AEN path(suggested by John Baldwin).
3. Fix IOCTL path w.r.t Sense key handling

Reviewed by: ambrisko
MFC after: 2 weeks
Sponsored by: AVAGO Technologies

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Current driver does fast path read load balancing between arm and mirror disk
for two Drive Raid-1 configuration only.

Now, Driver support fast path read load balancing for all (any number of disk)

Current driver does fast path read load balancing between arm and mirror disk
for two Drive Raid-1 configuration only.

Now, Driver support fast path read load balancing for all (any number of disk) Raid-1 configuration.

Reviewed by: ambrisko
MFC after: 2 weeks
Sponsored by: AVAGO Technologies

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Now Driver expose Secure Jbod Support via driver_operations in MFI INIT Frame.
FW expose Secure Jbod support via Controller properity.

Firmware expect IOs to be received from different IO path than

Now Driver expose Secure Jbod Support via driver_operations in MFI INIT Frame.
FW expose Secure Jbod support via Controller properity.

Firmware expect IOs to be received from different IO path than
conventional fast path queue, in case of SED drives.

To have Secure jbod support user need driver and firmware support.

Reviewed by: ambrisko
MFC after: 2 weeks
Sponsored by: AVAGO Technologies

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Reintegrate head: r274132-r277384

Sponsored by: The FreeBSD Foundation

Reintegrate head revisions r273096-r277147

Sponsored by: The FreeBSD Foundation

Prevent overflow issues in timeout processing

Previously, any timeout value for which (timeout * hz) will overflow the
signed integer, will give weird results, since callout(9) routines will
convert

Prevent overflow issues in timeout processing

Previously, any timeout value for which (timeout * hz) will overflow the
signed integer, will give weird results, since callout(9) routines will
convert negative values of ticks to '1'. For unsigned integer overflow we
will get sufficiently smaller timeout values than expected.

Switch from callout_reset, which requires conversion to int based ticks
to callout_reset_sbt to avoid this.

Also correct isci to correctly resolve ccb timeout.

This was based on the original work done by Eygene Ryabinkin
<rea@freebsd.org> back in 5 Aug 2011 which used a macro to help avoid
the overlow.

Differential Revision: https://reviews.freebsd.org/D1157
Reviewed by: mav, davide
MFC after: 1 month
Sponsored by: Multiplay

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Merge from head@274682

Sync to HEAD@r274095.