1029 Commits

Author SHA1 Message Date
imp
bd9eaea6c1 Remove ncv(4) driver
ncv(4) is marked as gone in 12. Remove it. There are no sightings of
it in the nycbug dmesg database. It was for an obscure SCSI card that
sold mostly in Japan, and was especially popilar among pc98 hackers in
the 4.x time frame..

Relnote: Yes
2018-10-22 02:35:26 +00:00
imp
a5023bb106 Retire dpt(4)
Marked as gone in 12 and not relevant since the early 90s. No
sightings in nycbug's dmesg database.

Relnotes: yes
2018-10-22 02:35:12 +00:00
imp
1f8d89be2c Remove the gone_in(12) devices.
We're planning on removing adv, adw, aha, aic, bt, ncv, nsp, and stg
soon. They have been tagged for removal in 12. At least get them out
of GENERIC.

MFC after: 3 days
Relnotes: yes
2018-10-22 02:28:18 +00:00
erj
4578e98d65 ixl/iavf(4): Change ixlv to iavf and update it to use iflib(9)
Finishes the conversion of the 40Gb Intel Ethernet drivers to iflib(9) for
FreeBSD 12.0, and fixes numerous bugs in both ixl(4) and iavf(4).

This commit also re-adds the VF driver to GENERIC since it now compiles and
functions.

The VF driver name was changed from ixlv(4) to iavf(4) because the VF driver is
now intended to be used with future products, not just with Fortville/Fort Park
VFs.

A man page update that documents these drivers is forthcoming in a separate
commit.

Reviewed by:    sbruno@, kbowling@
Tested by:      jeffrey.e.pieper@intel.com
Approved by:	re (gjb@)
Relnotes:       yes
Sponsored by:   Intel Corporation
Differential Revision: https://reviews.freebsd.org/D16429
2018-10-12 22:40:54 +00:00
tuexen
9d144c6451 Address the warning regarding duplicate option 'GEOM_PART_GPT' when
configuring kernels for i386, amd64, and arm64.
The 'GEOM_PART_GPT' option was added to the DEFAULTS configuration
in r337967.

Approved by:		re (kib@)
Reviewed by:		ler@
Differential Revision:	https://reviews.freebsd.org/D17458
Sponsored by:		Netflix, Inc.
2018-10-07 15:54:13 +00:00
mjg
47128da035 amd64: enable options NUMA in GENERIC and MINIMAL
Reviewed by:	gallatin, cem, scottl
Approved by:	re (kib)
Relnotes:	yes
Sponsored by:	Dell EMC Isilon, Netflix
Differential Revision:	https://reviews.freebsd.org/D17059
2018-09-11 23:54:31 +00:00
imp
ae526637c4 Revert drm2 removal.
Revert r338177, r338176, r338175, r338174, r338172

After long consultations with re@, core members and mmacy, revert
these changes. Followup changes will be made to mark them as
deprecated and prent a message about where to find the up-to-date
driver.  Followup commits will be made to make this clear in the
installer. Followup commits to reduce POLA in ways we're still
exploring.

It's anticipated that after the freeze, this will be removed in
13-current (with the residual of the drm2 code copied to
sys/arm/dev/drm2 for the TEGRA port's use w/o the intel or
radeon drivers).

Due to the impending freeze, there was no formal core vote for
this. I've been talking to different core members all day, as well as
Matt Macey and Glen Barber. Nobody is completely happy, all are
grudgingly going along with this. Work is in progress to mitigate
the negative effects as much as possible.

Requested by: re@ (gjb, rgrimes)
2018-08-24 00:02:00 +00:00
mmacy
8f3d6467d4 Remove legacy drm and drm2 from tree
As discussed on the MLs drm2 conflicts with the ports' version and there
is no upstream for most if not all of drm. Both have been merged in to
a single port.

Users on powerpc, 32-bit hardware, or with GPUs predating Radeon
and i915 will need to install the graphics/drm-legacy-kmod. All
other users should be able to use one of the LinuxKPI-based ports:
graphics/drm-stable-kmod, graphics/drm-next-kmod, graphics/drm-devel-kmod.

MFC: never
Approved by: core@
2018-08-22 01:50:12 +00:00
jhb
5f8e558a6b Make 'device crypto' lines more consistent.
- In configurations with a pseudo devices section, move 'device crypto'
  into that section.
- Use a consistent comment.  Note that other things common in kernel
  configs such as GELI also require 'device crypto', not just IPSEC.

Reviewed by:	rgrimes, cem, imp
Differential Revision:	https://reviews.freebsd.org/D16775
2018-08-18 20:32:08 +00:00
imp
02e6d7f1d9 GPT is standard in x86 and arm64 land. Add it to DEFAULTS with the
others.

Differential Revision: https://reviews.freebsd.org/D16740
2018-08-17 14:47:21 +00:00
markj
0037c1c1c0 COMPAT_LINUX32 has not depended on COMPAT_43 in some time.
MFC after:	3 days
2018-07-31 21:40:13 +00:00
kevans
5727137549 amd64/GENERIC: Enable EFIRT by default
As noted in UDPATING, the new loader tunable efi.rt_disabled may be used to
disable EFIRT at runtime. It should have no effect if you are not booted via
UEFI boot.

MFC after:	6 weeks
2018-07-30 17:54:18 +00:00
mmacy
8a6c208e18 remove ixl iwarp and ixlv from the build until they are in a working state 2018-06-19 02:48:53 +00:00
erj
01a93772b8 ixl(4): Update to use iflib
Update the driver to use iflib in order to bring performance,
maintainability, and (hopefully) stability benefits to the driver.

The driver currently isn't completely ported; features that are missing:

- VF driver (ixlv)
- SR-IOV host support
- RDMA support

The plan is to have these re-added to the driver before the next FreeBSD release.

Reviewed by:	gallatin@
Contributions by: gallatin@, mmacy@, krzysztof.galazka@intel.com
Tested by:	jeffrey.e.pieper@intel.com
MFC after:	1 month
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D15577
2018-06-18 20:12:54 +00:00
bde
1cd9b8b732 Finish COMPAT_AOUT support for amd64. It wasn't in any amd64 or MI
file in /sys/conf, so was unavailable in configurations that don't use
modules, and was not testable or notable in NOTES.  Its normal
configuration (not using a module) is still silently deprecated in
aout(4) by not mentioning it there.

Update i386 NOTES for COMPAT_AOUT.  It is not i386-only, or even very MD.
Sort its entry better.

Finish gzip configuration (but not support) for amd64.  gzip is really
gzipped aout.  It is currently broken even for i386 (a call to vm fails).
amd64 has always attempted to configure and test it, but it depends on
COMPAT_AOUT (as noted).  The bug that it depends on unconfigured files
was not detected since it is configured as a device.  All other optional
image activators are configured properly using an option.
2018-06-02 06:40:15 +00:00
mmacy
97b23c16eb take NUMA out 2018-05-24 04:31:53 +00:00
mmacy
da844acd6d libpmcstat: compile in events based on json description 2018-05-24 04:30:06 +00:00
markj
5594f37668 Enable kernel dump features in GENERIC for most platforms.
This turns on support for kernel dump encryption and compression, and
netdump. arm and mips platforms are omitted for now, since they are more
constrained and don't benefit as much from these features.

Reviewed by:	cem, manu, rgrimes
Tested by:	manu (arm64)
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D15465
2018-05-19 19:53:23 +00:00
emaste
0c5a9cf17f amd64 GENERIC: correct whitespace on smartpqi entry 2018-05-18 17:51:42 +00:00
sbruno
c93f787b7e move smartpqi(4) controller out of NOTES and into sys/amd64/NOTES to
appease LINT

Submitted by:	rpokala
Reported by:	npn
2018-04-26 22:43:25 +00:00
sbruno
0804f0eef0 martpqi(4):
- Microsemi SCSI driver for PQI controllers.
- Found on newer model HP servers.
- Restrict to AMD64 only as per developer request.

The driver provides support for the new generation of PQI controllers
from Microsemi. This driver is the first SCSI driver to implement the PQI
queuing model and it will replace the aacraid driver for Adaptec Series 9
controllers.  HARDWARE Controllers supported by the driver include:

    HPE Gen10 Smart Array Controller Family
    OEM Controllers based on the Microsemi Chipset.

Submitted by:   deepak.ukey@microsemi.com
Relnotes:       yes
Sponsored by:   Microsemi
Differential Revision:   https://reviews.freebsd.org/D14514
> Description of fields to fill in above:                     76 columns --|
> PR:                       If and which Problem Report is related.
> Submitted by:             If someone else sent in the change.
> Reported by:              If someone else reported the issue.
> Reviewed by:              If someone else reviewed your modification.
> Approved by:              If you needed approval for this commit.
> Obtained from:            If the change is from a third party.
> MFC after:                N [day[s]|week[s]|month[s]].  Request a reminder email.
> MFH:                      Ports tree branch name.  Request approval for merge.
> Relnotes:                 Set to 'yes' for mention in release notes.
> Security:                 Vulnerability reference (one per line) or description.
> Sponsored by:             If the change was sponsored by an organization.
> Pull Request:             https://github.com/freebsd/freebsd/pull/### (*full* GitHub URL needed).
> Differential Revision:    https://reviews.freebsd.org/D### (*full* phabric URL needed).
> Empty fields above will be automatically removed.

M    share/man/man4/Makefile
AM   share/man/man4/smartpqi.4
M    sys/amd64/conf/GENERIC
M    sys/conf/NOTES
M    sys/conf/files.amd64
A    sys/dev/smartpqi
AM   sys/dev/smartpqi/smartpqi_cam.c
AM   sys/dev/smartpqi/smartpqi_cmd.c
AM   sys/dev/smartpqi/smartpqi_defines.h
AM   sys/dev/smartpqi/smartpqi_discovery.c
AM   sys/dev/smartpqi/smartpqi_event.c
AM   sys/dev/smartpqi/smartpqi_helper.c
AM   sys/dev/smartpqi/smartpqi_includes.h
AM   sys/dev/smartpqi/smartpqi_init.c
AM   sys/dev/smartpqi/smartpqi_intr.c
AM   sys/dev/smartpqi/smartpqi_ioctl.c
AM   sys/dev/smartpqi/smartpqi_ioctl.h
AM   sys/dev/smartpqi/smartpqi_main.c
AM   sys/dev/smartpqi/smartpqi_mem.c
AM   sys/dev/smartpqi/smartpqi_misc.c
AM   sys/dev/smartpqi/smartpqi_prototypes.h
AM   sys/dev/smartpqi/smartpqi_queue.c
AM   sys/dev/smartpqi/smartpqi_request.c
AM   sys/dev/smartpqi/smartpqi_response.c
AM   sys/dev/smartpqi/smartpqi_sis.c
AM   sys/dev/smartpqi/smartpqi_structures.h
AM   sys/dev/smartpqi/smartpqi_tag.c
M    sys/modules/Makefile
A    sys/modules/smartpqi
AM   sys/modules/smartpqi/Makefile
2018-04-26 16:59:06 +00:00
ken
570099bbdd Bring in the Broadcom/Emulex Fibre Channel driver, ocs_fc(4).
The ocs_fc(4) driver supports the following hardware:

Emulex 16/8G FC GEN 5 HBAS
	LPe15004 FC Host Bus Adapters
	LPe160XX FC Host Bus Adapters

Emulex 32/16G FC GEN 6 HBAS
	LPe3100X FC Host Bus Adapters
	LPe3200X FC Host Bus Adapters

The driver supports target and initiator mode, and also supports FC-Tape.

Note that the driver only currently works on little endian platforms.  It
is only included in the module build for amd64 and i386, and in GENERIC
on amd64 only.

Submitted by:	Ram Kishore Vegesna <ram.vegesna@broadcom.com>
Reviewed by:	mav
MFC after:	5 days
Relnotes:	yes
Sponsored by:	Broadcom
Differential Revision:	https://reviews.freebsd.org/D11423
2018-03-30 15:28:25 +00:00
jtl
54451a3dd7 Make the TCP blackbox code committed in r331347 be an optional feature
controlled by the TCP_BLACKBOX option.

Enable this as part of amd64 GENERIC. For now, leave it disabled on
other platforms.

Sponsored by:	Netflix, Inc.
2018-03-24 12:48:10 +00:00
rpokala
03d8fd318a imcsmb(4): Intel integrated Memory Controller (iMC) SMBus controller driver
imcsmb(4) provides smbus(4) support for the SMBus controller functionality
in the integrated Memory Controllers (iMCs) embedded in Intel Sandybridge-
Xeon, Ivybridge-Xeon, Haswell-Xeon, and Broadwell-Xeon CPUs. Each CPU
implements one or more iMCs, depending on the number of cores; each iMC
implements two SMBus controllers (iMC-SMBs).

*** IMPORTANT NOTE ***
Because motherboard firmware or the BMC might try to use the iMC-SMBs for
monitoring DIMM temperatures and/or managing an NVDIMM, the driver might
need to temporarily disable those functions, or take a hardware interlock,
before using the iMC-SMBs. Details on how to do this may vary from board to
board, and the procedure may be proprietary. It is strongly suggested that
anyone wishing to use this driver contact their motherboard vendor, and
modify the driver as described in the manual page and in the driver itself.
(For what it's worth, the driver as-is has been tested on various SuperMicro
motherboards.)

Reviewed by:	avg, jhb
MFC after:	1 week
Relnotes:	yes
Sponsored by:	Panasas
Differential Revision:	https://reviews.freebsd.org/D14447
Discussed with:	avg, ian, jhb
Tested by:	allanjude (previous version), Panasas
2018-03-03 01:53:51 +00:00
pkelsey
91dbc8d21a Greatly reduce the number of #ifdefs supporting the TCP_RFC7413 kernel option.
The conditional compilation support is now centralized in
tcp_fastopen.h and tcp_var.h. This doesn't provide the minimum
theoretical code/data footprint when TCP_RFC7413 is disabled, but
nearly all the TFO code should wind up being removed by the optimizer,
the additional footprint in the syncache entries is a single pointer,
and the additional overhead in the tcpcb is at the end of the
structure.

This enables the TCP_RFC7413 kernel option by default in amd64 and
arm64 GENERIC.

Reviewed by:	hiren
MFC after:	1 month
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D14048
2018-02-26 03:03:41 +00:00
hselasky
4287266c4f Import the mthca kernel side infiniband driver from Linux 4.9 and fix
compilation under FreeBSD. The mthca driver was temporarily removed as
part of the Linux 4.9 RoCE/infinband upgrade.

Top commit in Linux source tree:
69973b830859bc6529a7a0468ba0d80ee5117826

Sponsored by:	Mellanox Technologies
2018-02-13 17:04:34 +00:00
jeff
cc3d6a3370 Move VM_NUMA_ALLOC and DEVICE_NUMA under the single global config option NUMA.
Sponsored by:	Netflix, Dell/EMC Isilon
Discussed with:	jhb
2018-01-14 03:36:03 +00:00
scottl
49fb5dd79b It's time to retire AHC_REG_PRETTY_PRINT and AHD_REG_PRETTY_PRINT from
the standard kernels.  They are still available as custom compile
options.
2017-11-29 23:41:49 +00:00
hselasky
b909dfecb7 Remove no longer supported mthca driver.
Sponsored by:	Mellanox Technologies
2017-11-13 10:59:38 +00:00
eadler
45275e3a26 Update several more URLs
- Primarily http -> https
- Primarily FreeBSD project URLs
2017-10-29 08:17:03 +00:00
bz
48b1992757 With r181803 on 2008-08-17 23:27:27Z the first VIMAGE commit went into
HEAD.  Enable VIMAGE in GENERIC kernels and some others (where GENERIC does
not exist) on HEAD.

Disable building LINT-VIMAGE with VIMAGE being default.

This should give it a lot more exposure in the run-up to 12 to help
us evaluate whether to keep it on by default or not.
We are also hoping to get better performance testing.
The feature can be disabled using nooptions.

Requested by:		many
Reviewed by:		kristof, emaste, hiren
X-MFC after:		never
Relnotes:		yes
Differential Revision:	https://reviews.freebsd.org/D12639
2017-10-20 21:40:59 +00:00
kibab
241835d4e9 Add MMCCAM-enabled kernel config for IMX6, reduce debug noice in MMCCAM kernels
CAM_DEBUG_TRACE results in way too much debug output than needed now.
When debugging, it's always possible to turn on trace level using camcontrol.

Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D12110
2017-09-13 10:56:02 +00:00
cem
3bf35bb3c4 Add smn(4) driver for AMD System Management Network
AMD Family 17h CPUs have an internal network used to communicate between
the host CPU and the PSP and SMU coprocessors.  It exposes a simple
32-bit register space.

Reviewed by:	avg (no +1), mjoras, truckman
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D12217
2017-09-05 15:13:41 +00:00
jpaetzel
bfd734f77c Revert r323087
This needs more thinking out and consensus, and the commit message
was wrong AND there was a typo in the commit.

pointyhat:	jpaetzel
2017-09-01 17:03:48 +00:00
jpaetzel
612bb8539d Take options IPSEC out of GENERIC
PR:	220170
Submitted by:	delphij
Reviewed by:	ae, glebius
MFC after:	2 weeks
Differential Revision:	D11806
2017-09-01 15:54:53 +00:00
jpaetzel
f7739d7e09 Allow kldload tcpmd5
PR:	220170
MFC after:	2 weeks
2017-08-31 20:16:28 +00:00
mav
5849e8f575 Add NTB driver for PLX/Avago/Broadcom PCIe switches.
This driver supports both NTB-to-NTB and NTB-to-Root Port modes (though
the second with predictable complications on hot-plug and reboot events).
I tested it with PEX 8717 and PEX 8733 chips, but expect it should work
with many other compatible ones too.  It supports up to two NT bridges
per chip, each of which can have up to 2 64-bit or 4 32-bit memory windows,
6 or 12 scratchpad registers and 16 doorbells.  There are also 4 DMA engines
in those chips, but they are not yet supported.

While there, rename Intel NTB driver from generic ntb_hw(4) to more specific
ntb_hw_intel(4), so now it is on par with this new ntb_hw_plx(4) driver and
alike to Linux naming.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2017-08-30 21:16:32 +00:00
imp
a87c7a85be An MMC/SD/SDIO stack using CAM
Implement the MMC/SD/SDIO protocol within a CAM framework. CAM's
flexible queueing will make it easier to write non-storage drivers
than the legacy stack. SDIO drivers from both the kernel and as
userland daemons are possible, though much of that functionality will
come later.

Some of the CAM integration isn't complete (there are sleeps in the
device probe state machine, for example), but those minor issues can
be improved in-tree more easily than out of tree and shouldn't gate
progress on other fronts. Appologies to reviews if specific items
have been overlooked.

Submitted by: Ilya Bakulin
Reviewed by: emaste, imp, mav, adrian, ian
Differential Review: https://reviews.freebsd.org/D4761

merge with first commit, various compile hacks.
2017-07-09 16:57:24 +00:00
sbruno
12de4d18c8 Garbage collect kernel option TWA_FLASH_FIRMWARE
Submitted by:	 kevin.bowling0kev009.com
Differential Revision:	https://reviews.freebsd.org/D11387
2017-07-03 19:33:50 +00:00
manu
044a23ec3c Remove i915drm and radeondrm from NOTES and conf.
This unbreak LINT kernel.

Reported by:	lwhsu
2017-03-12 00:52:16 +00:00
glebius
745bcd6fba Remove SVR4 (System V Release 4) binary compatibility support.
UNIX System V Release 4 is operating system released in 1988. It ceased
to exist in early 2000-s.
2017-02-28 05:14:42 +00:00
erj
1edbd9d1a6 ixl(4): Update to 1.7.12-k
Refresh upstream driver before impending conversion to iflib.

Major new features:

- Support for Fortville-based 25G adapters
- Support for I2C reads/writes

(To prevent getting or sending corrupt data, you should set
dev.ixl.0.debug.disable_fw_link_management=1 when using I2C
[this will disable link!], then set it to 0 when done. The driver implements
the SIOCGI2C ioctl, so ifconfig -v works for reading I2C data,
but there are read_i2c and write_i2c sysctls under the .debug sysctl tree
[the latter being useful for upper page support in QSFP+]).

- Addition of an iWARP client interface (so the future iWARP driver for
  X722 devices can communicate with the base driver).
  - Compiling this option in is enabled by default, with "options IXL_IW" in
    GENERIC.

Differential Revision:	https://reviews.freebsd.org/D9227
Reviewed by:	sbruno
MFC after:	2 weeks
Sponsored by:	Intel Corporation
2017-02-10 01:04:11 +00:00
sbruno
efab05d612 Migrate e1000 to the IFLIB framework:
- em(4) igb(4) and lem(4)
- deprecate the igb device from kernel configurations
- create a symbolic link in /boot/kernel from if_em.ko to if_igb.ko

Devices tested:
- 82574L
- I218-LM
- 82546GB
- 82579LM
- I350
- I217

Please report problems to freebsd-net@freebsd.org

Partial review from jhb and suggestions on how to *not* brick folks who
originally would have lost their igbX device.

Submitted by:	mmacy@nextbsd.org
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	Limelight Networks and Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8299
2017-01-10 03:23:22 +00:00
jhb
203d8b88f7 Enable EARLY_AP_STARTUP on amd64 and i386 kernels by default.
PR:		199321, 203682
MFC after:	2 months
Sponsored by:	Netflix
2016-12-16 21:10:37 +00:00
markj
8bb19c4929 Add a COMPAT_FREEBSD11 kernel option.
Use it wherever COMPAT_FREEBSD10 is currently specified.

Reviewed by:	glebius, imp, jhb
Differential Revision:	https://reviews.freebsd.org/D8736
2016-12-09 18:54:12 +00:00
cem
7ae132fee1 Add BUF_TRACKING and FULL_BUF_TRACKING buffer debugging
Upstream the BUF_TRACKING and FULL_BUF_TRACKING buffer debugging code.
This can be handy in tracking down what code touched hung bios and bufs
last. The full history is especially useful, but adds enough bloat that
it shouldn't be enabled in release builds.

Function names (or arbitrary string constants) are tracked in a
fixed-size ring in bufs. Bios gain a pointer to the upper buf for
tracking. SCSI CCBs gain a pointer to the upper bio for tracking.

Reviewed by:	markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8366
2016-10-31 23:09:52 +00:00
jtl
62030781cd In the TCP stack, the hhook(9) framework provides hooks for kernel modules
to add actions that run when a TCP frame is sent or received on a TCP
session in the ESTABLISHED state. In the base tree, this functionality is
only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
and cc_vegas congestion control modules.

Presently, we incur overhead to check for hooks each time a TCP frame is
sent or received on an ESTABLISHED TCP session.

This change adds a new compile-time option (TCP_HHOOK) to determine whether
to include the hhook(9) framework for TCP. To retain backwards
compatibility, I added the TCP_HHOOK option to every configuration file that
already defined "options INET". (Therefore, this patch introduces no
functional change. In order to see a functional difference, you need to
compile a custom kernel without the TCP_HHOOK option.) This change will
allow users to easily exclude this functionality from their kernel, should
they wish to do so.

Note that any users who use a custom kernel configuration and use one of the
congestion control modules listed above will need to add the TCP_HHOOK
option to their kernel configuration.

Reviewed by:	rrs, lstewart, hiren (previous version), sjg (makefiles only)
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D8185
2016-10-12 02:16:42 +00:00
hselasky
5e41da7ccd Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4
like other PCI network drivers. The sys/ofed directory is now mainly
reserved for generic infiniband code, with exception of the mthca driver.

- Add new manual page, mlx4en(4), describing how to configure and load
mlx4en.

- All relevant driver C-files are now prefixed mlx4, mlx4_en and
mlx4_ib respectivly to avoid object filename collisions when compiling
the kernel. This also fixes an issue with proper dependency file
generation for the C-files in question.

- Device mlxen is now device mlx4en and depends on device mlx4, see
mlx4en(4). Only the network device name remains unchanged.

- The mlx4 and mlx4en modules are now built by default on i386 and
amd64 targets. Only building the mlx4ib module depends on
WITH_OFED=YES .

Sponsored by:	Mellanox Technologies
2016-09-30 08:23:06 +00:00
kib
df422cbea3 Add kernel interfaces to call EFI Runtime Services.
Runtime services require special execution environment for the call.
Besides that, OS must inform firmware about runtime virtual memory map
which will be active during the calls, with the SetVirtualAddressMap()
runtime call, done while the 1:1 mapping is still used.  There are two
complication: the SetVirtualAddressMap() effectively must be done from
loader, which needs to know kernel address map in advance.  More,
despite not explicitely mentioned in the specification, both 1:1 and
the map passed to SetVirtualAddressMap() must be active during the
SetVirtualAddressMap() call.  Second, there are buggy BIOSes which
require both mappings active during runtime calls as well, most likely
because they fail to identify all relocations to perform.

On amd64, we can get rid of both problems by providing 1:1 mapping for
the duration of runtime calls, by temprorary remapping user addresses.
As result, we avoid the need for loader to know about future kernel
address map, and avoid bugs in BIOSes.  Typically BIOS only maps
something in low 4G.  If not runtime bugs, we would take advantage of
the DMAP, as previous versions of this patch did.

Similar but more complicated trick can be used even for i386 and 32bit
runtime, if and when the EFI boot on i386 is supported.  We would need
a trampoline page, since potentially whole 4G of VA would be switched
on calls, instead of only userspace portion on amd64.

Context switches are disabled for the duration of the call, FPU access
is granted, and interrupts are not disabled.  The later is possible
because kernel is mapped during calls.

To test, the sysctl mib debug.efi_time is provided, setting it to 1
makes one call to EFI get_time() runtime service, on success the efitm
structure is printed to the control terminal.  Load efirt.ko, or add
EFIRT option to the kernel config, to enable code.

Discussed with:	emaste, imp
Tested by:	emaste (mac, qemu)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2016-09-21 11:31:58 +00:00
jhb
31bd6f147b Remove remnants of PERFMON and I586_PMC_GUPROF from amd64.
These options were never fully ported over from i386.
2016-09-06 19:25:32 +00:00