History log of /freebsd-10-stable/sys/dev/mps/mps_config.c
Revision Date Author Comments
# 322661 18-Aug-2017 ken

MFC r321502, r321714, r321733, r321737, r321799, r322364:

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r321502 | scottl | 2017-07-25 19:48:13 -0600 (Tue, 25 Jul 2017) | 2 lines

Quiet a message that sounds far more dire than it really is.

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r321714 | scottl | 2017-07-30 00:53:58 -0600 (Sun, 30 Jul 2017) | 13 lines

Split the interrupt setup code into two parts: allocation and configuration.
Do the allocation before requesting the IOCFacts message. This triggers
the LSI firmware to recognize the multiqueue should be enabled if available.
Multiqueue isn't used by the driver yet, but this also fixes a problem with
the cached IOCFacts not matching latter checks, leading to potential problems
with error recovery.

As a side-effect, fetch the driver tunables as early as possible.

Reviewed by: slm
Obtained from: Netflix
Differential Revision: D9243

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r321733 | scottl | 2017-07-30 16:34:24 -0600 (Sun, 30 Jul 2017) | 5 lines

Change from using underbar function names to normal function names for
the informational print functions. Collapse the debug API a bit to be
more generic and not require as much code duplication. While here, fix
a bug in MPS that was already fixed in MPR.

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r321737 | scottl | 2017-07-30 18:05:49 -0600 (Sun, 30 Jul 2017) | 3 lines

Don't re-parse PCI IDs in order to set card-specific flags, use
the flags field in the PCIID table.

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r321799 | scottl | 2017-07-31 10:55:56 -0600 (Mon, 31 Jul 2017) | 4 lines

Fix a logic bug in the split PCI interrupt code that slipped through

Reported by: Harry Schmalzbauer

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r322364 | ken | 2017-08-10 08:59:17 -0600 (Thu, 10 Aug 2017) | 39 lines

Changes to make mps(4) and mpr(4) handle reinit with reallocation.

When the mps(4) and mpr(4) drivers need to reinitialize the
firmware, they sometimes need to reallocate all of the memory
allocated by the driver. The reallocation happens whenever the IOC
Facts change. That should only happen after a firmware upgrade.

If the reinitialization happens as a result of a timed out command
sent to the card, the command that timed out and triggered the
reinit may have been freed if iocfacts_allocate() reallocated all
memory. If the caller attempts to access the command after that,
the kernel will panic because the caller will be dereferencing
freed memory.

The solution is to set a flag in the softc when we reallocate,
and avoid dereferencing the command strucure if we've reallocated.

The changes are largely the same in both drivers, since mpr(4) is a
derivative of mps(4).

o In iocfacts_allocate(), if the IOC Facts have changed and we
need to reallocate, set the REALLOCATED flag in the softc.

o Change wait_command() to take a struct mps_command ** instead of
a struct mps_command *. This allows us to NULL out the caller's
command pointer if we have to reinit the controller and the data
structures get reallocated. (The REALLOCATED flag will be set
in the softc if that has happened.)

o In every place that calls wait_command(), make sure we handle
the case where the command is NULL after the call.

o The mpr(4) driver has mpr_request_polled() which can also
reinitialize the card. Also check for reallocation there.

Reviewed by: scottl, slm
Sponsored by: Spectra Logic

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Approved by: re (marius)


# 319436 01-Jun-2017 slm

MFC r286567, r286568, r289426, r289429, r295113, r295286, r299367, r299369,
r308217, r308301, r311958, r312437, r318188, r318427, r318679

r286567:
Remove some unused code.

Obtained from: Netflix, Inx.

r286568:
Remove mps_request_polled(), it's redundant to mps_wait_command()

Obtained from: Netflix, Inc.

r289426:
Remove _FreeBSD_version check for something that was only an issue with
9-CURRENT.

Obtained from: Netlfix, Inc
MFC after: 3 days

r289429:
Revert an extra hunk that crept into the last commit.

Submitted by: emax
Obtained from: Netflix, Inc.
MFC after: 3 days

r295113:
Clean up unused-but-set-variable spotted by gcc-4.9.

Reviewed by: mav, slm
Approved by: rodrigc (mentor)
MFC after: 2 weeks
Sponsored by: gandi.net

r295286:
Add sysctls for dumping out the device mapping tables. I'm finding this
useful for debugging device-target translation bugs.

MFC after: 3 days
Sponsored by: Netflix

r299367:
Remove NULL checks after M_WAITOK allocations from mps(4).

Reviewed by: asomers@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6296

r299369:
Remove NULL checks after M_WAITOK allocations from mpr(4).

Reviewed by: asomers@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6297

r308217:
Add a fallback to the device mapper logic. We've seen systems in the field
that are apparently misconfigured by the manufacturer and cause the mapping
logic to fail. The fallback allows drive numbers to be assigned based on the
PHY number that they're attached to. Add sysctls and tunables to overrid
this new behavior, but they should be considered only necessary for debugging.

Reviewed by: imp, smh
Obtained from: Netflix
MFC after: 3 days
Sponsored by: D8403

r308301:
Record the LogInfo field when reporting the IOCStatus. Helps in
debugging errors.

Submitted by: slm
Obtained from: Netflix
MFC after: 3 days

r311958:
Print out the number of queues/MSIx vectors.

Sponsored by: Netflix

r312437:
Rework the debug print API. Event printing no longer gets special handling.
All of the printing from the tables file now has wrappers so that the
handling is cleaner and it's possible to print something out (say, during
development) without having to fight the global debug flags. This re-org
will also make it easier to have the tables be compiled out at build time
if desired.

Other than fixing some minor bugs, there are no user-visible changes from
this change

Sponsored by: Netflix, Inc.
Differential Revision: D9238

r318188:
Improve error messages during command timeout for the mpr and mps
drivers.

Sponsored by: Netflix

r318427:
Add tri-mode support (SAS/SATA/PCIe).

This includes NVMe device support and adds support for the following adapters:
SAS 3408
SAS 3416
SAS 3508
SAS 3516
SAS 3616
SAS 3708
SAS 3716

Reviewed by: ken, scottl, asomers, mav
Approved by: ken, scottl, mav
MFC after: 2 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D10095

r318679:
Fix powerpc compiler error.

Approved by: ken


# 302225 27-Jun-2016 slm

MFC r302031

- No log bit in IOCStatus and endian-safe changes.

Use MPI2_IOCSTATUS_MASK when checking IOCStatus to mask off the log bit, and
make a few more things endian-safe.

- Fix possible use of invalid pointer.

It was possible to use an invalid pointer to get the target ID value. To fix
this, initialize a local Target ID variable to an invalid value and change that
variable to a valid value only if the pointer to the Target ID is not NULL.

- No need to set the MPSSAS_SHUTDOWN flag because it's never used.

- done_ccb pointer can be used if it is NULL.

To prevent this, move check for done_ccb == NULL to before done_ccb is used in
mpssas_stop_unit_done().

- Disks can go missing until a reboot is done in some cases.

This is due to the DevHandle not being released, which causes the Firmware to
not allow that disk to be re-added.

Approved by: ken, scottl, ambrisko (mentors)


# 281564 15-Apr-2015 slm

MFI r257381:
Adjust to handle either a 32-bit or 64-bit lun_id_t in printf.

MFC r266615:
Increase taskqueue thread priority from idle to PRIBIO.

MFC r279253:
- Copyright to Avago
- SSU changes
- SATA ID timeout handling (PR 191348)
- reset handling changes
- Bump version to 20.00.00.00-fbsd

MFC r279695:
Change that should have been done with r279253


# 281564 15-Apr-2015 slm

MFI r257381:
Adjust to handle either a 32-bit or 64-bit lun_id_t in printf.

MFC r266615:
Increase taskqueue thread priority from idle to PRIBIO.

MFC r279253:
- Copyright to Avago
- SSU changes
- SATA ID timeout handling (PR 191348)
- reset handling changes
- Bump version to 20.00.00.00-fbsd

MFC r279695:
Change that should have been done with r279253