Commit Graph

2697 Commits

Author SHA1 Message Date
Andriy Gapon
ff6fe29835 driver for MAX44009 I2C illuminance sensor 2021-11-06 19:19:04 +02:00
Andriy Gapon
a60b304697 pcf8591: driver for adc/dac with i2c interface 2021-11-06 19:14:50 +02:00
Wojciech Macek
200bc58953 Revert "ossl: Add support for AES-CBC cipher"
This reverts commit 849faf4e0b.
2021-11-06 17:46:01 +01:00
Kornel Duleba
849faf4e0b ossl: Add support for AES-CBC cipher
AES-CBC OpenSSL assembly is used underneath.
The glue layer(ossl_aes.c) is based on CHACHA20 implementation.
Contrary to the SHA and CHACHA20, AES OpenSSL assembly logic
does not have a fallback implementation in case CPU doesn't
support required instructions.
Because of that CPU caps are checked during initialization and AES
support is advertised only if available.
The feature is available on all architectures that ossl supports:
i386, amd64, arm64.

The biggest advantage of this patch over existing solutions
(aesni(4) and armv8crypto(4)) is that it supports SHA,
allowing for ETA operations.

Sponsored by:		Stormshield
Obtained from:		Semihalf
Reviewed by:		jhb
Differential revision:	https://reviews.freebsd.org/D32099
2021-11-06 09:08:44 +01:00
Ed Maste
48cb3fee25 Retire obsolete iscsi_initiator(4)
The new iSCSI initiator iscsi(4) was introduced with FreeBSD 10.0, and
the old intiator was marked obsolete shortly thereafter (in commit
d32789d95c, MFC'd to stable/10 in ba54910169).  Remove it now.

Reviewed by:	jhb, mav
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D32673
2021-10-26 16:17:35 -04:00
Gleb Smirnoff
6aae3517ed Retire synchronous PPP kernel driver sppp(4).
The last two drivers that required sppp are cp(4) and ce(4).

These devices are still produced and can be purchased
at Cronyx <http://cronyx.ru/hardware/wan.html>.

Since Roman Kurakin <rik@FreeBSD.org> has quit them, they no
longer support FreeBSD officially.  Later they have dropped
support for Linux drivers to.  As of mid-2020 they don't even
have a developer to maintain their Windows driver.  However,
their support verbally told me that they could provide aid to
a FreeBSD developer with documentaion in case if there appears
a new customer for their devices.

These drivers have a feature to not use sppp(4) and create an
interface, but instead expose the device as netgraph(4) node.
Then, you can attach ng_ppp(4) with help of ports/net/mpd5 on
top of the node and get your synchronous PPP.  Alternatively
you can attach ng_frame_relay(4) or ng_cisco(4) for HDLC.
Actually, last time I used cp(4) back in 2004, using netgraph(4)
instead of sppp(4) was already the right way to do.

Thus, remove the sppp(4) related part of the drivers and enable
by default the negraph(4) part.  Further maintenance of these
drivers in the tree shouldn't be a big deal.

While doing that, remove some cruft and enable cp(4) compilation
on amd64.  The ce(4) for some unknown reason marks its internal
DDK functions with __attribute__ fastcall, which most likely is
safe to remove, but without hardware I'm not going to do that, so
ce(4) remains i386-only.

Reviewed by:		emaste, imp, donner
Differential Revision:	https://reviews.freebsd.org/D32590
See also:		https://reviews.freebsd.org/D23928
2021-10-22 11:41:36 -07:00
Warner Losh
79a100e28e bluetooth: complete removal of ng_h4
The ng_h4 module was disconnected 13 years ago when the tty later was
locked by Ed. It completely fails to compile, and has a number of false
positives for Giant use. Remove it for lack of interest. Bluetooth has
largely (completely?) moved on from bluetooth over UART transport.

OK'd by:		emax
Sponsored by:		Netflix
Differential Revision:	https://reviews.freebsd.org/D31846
2021-09-29 20:00:02 -06:00
Vladimir Kondratyev
66ea390652 LinuxKPI: Remove FreeBSD struct resource from all LKPI headers
except linux/pci.h to avoid conflicts with Linux version.
This allows to #define resource in drm-kmod globally and strip some #ifdef-s

Reviewed by:	hselasky, manu
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D31673
2021-09-29 23:12:36 +03:00
Navdeep Parhar
45d6fbaec2 cxgbe(4): Update firmwares to 1.26.2.0.
The firmwares and the following changelog are from the "Chelsio Unified
Wire v3.15.0.0 for Linux."

Version : 1.26.2.0
Date    : 09/24/2021
====================

FIXES
-----

BASE:
- Added support for SFP+ RJ45 (0x1C).
- Fixing backward compatibility issue with older drivers when multiple
  speeds are passed to firmware.

OFLD:
- Do not touch tp_plen_max if driver is supplying tp_plen_max. This
  fixes a connection reset issue in iscsi.

ENHANCEMENTS
------------

BASE:
- Firmware header modified to add firmware binary signature.

MFC after:	1 month
Sponsored by:	Chelsio Communications
2021-09-27 23:52:51 -07:00
Konstantin Belousov
cf0ee8738e Drop cloudabi
According to https://github.com/NuxiNL/cloudlibc:
CloudABI is no longer being maintained. It was an awesome experiment,
but it never got enough traction to be sustainable.

There is no reason to keep it in FreeBSD.

Approved by:	ed (private mail)
Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D31923
2021-09-22 00:18:44 +03:00
Bartlomiej Grzesik
8a8166e5bc mmc: switch mmc_helper to device_ api
Add generic mmc_helper which uses newly introduced device_*_property
api. Thanks to this change the sd/mmc drivers will be capable
of parsing both DT and ACPI description.

Ensure backward compatibility for all mmc_fdt_helper users.

Reviewed by: manu, mw
Sponsored by: Semihalf
Differential revision: https://reviews.freebsd.org/D31598
2021-09-20 17:18:02 +02:00
Guinan Sun
6b9d35fac1 e1000: remove duplicated phy codes
Add two files base.c and base.h to reduce the redundancy
in the silicon family code.
Remove the code duplication from e1000_82575 files.
Clean family specific functions from base.
Fix up a stray and duplicate function declaration.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>

Approved by:	imp
Obtained from:	DPDK (44dddd14059f151f39f7e075b887decfc9a10f11)
MFC after:	1 week
2021-09-17 14:17:15 -07:00
Artur Rojek
a3f0d18237 ena: fix building in-kernel driver
When building ENA as compiled into the kernel, the driver would fail to
build. Resolve the problem by introducing the following changes:
1. Add missing `ena_rss.c` entry in `sys/conf/files`.
2. Prevent SYSCTL_ADD_INT from throwing an assert due to an extra
CTLTYPE_INT flag.

Fixes: 986e7b9227 ("ena: Move RSS logic into its own source files")
Fixes: 6d1ef2abd3 ("ena: Implement full RSS reconfiguration")

Obtained from: Semihalf
Sponsored by: Amazon, Inc.
MFC after: 1 week
2021-09-16 16:47:45 +02:00
Mark Johnston
cf4670fe0b kcov: Integrate with KMSAN
- kern_kcov.c needs to be compiled with -fsanitize=kernel-memory when
  KMSAN is configured since it calls into various other subsystems.
- Disable address and memory sanitizers in kcov(4)'s coverage sanitizer
  callbacks, as they do not provide useful checking.  Moreover, with
  KMSAN we may otherwise get false positives since the caller (coverage
  sanitizer runtime) is not instrumented.
- Disable KASAN and KMSAN interceptors in subr_coverage.c, as they do
  not provide any benefit but do introduce overhead when fuzzing.

Sponsored by:	The FreeBSD Foundation
2021-09-14 14:29:27 -04:00
Mark Johnston
a422084abb Add the KMSAN runtime
KMSAN enables the use of LLVM's MemorySanitizer in the kernel.  This
enables precise detection of uses of uninitialized memory.  As with
KASAN, this feature has substantial runtime overhead and is intended to
be used as part of some automated testing regime.

The runtime maintains a pair of shadow maps.  One is used to track the
state of memory in the kernel map at bit-granularity: a bit in the
kernel map is initialized when the corresponding shadow bit is clear,
and is uninitialized otherwise.  The second shadow map stores
information about the origin of uninitialized regions of the kernel map,
simplifying debugging.

KMSAN relies on being able to intercept certain functions which cannot
be instrumented by the compiler.  KMSAN thus implements interceptors
which manually update shadow state and in some cases explicitly check
for uninitialized bytes.  For instance, all calls to copyout() are
subject to such checks.

The runtime exports several functions which can be used to verify the
shadow map for a given buffer.  Helpers provide the same functionality
for a few structures commonly used for I/O, such as CAM CCBs, BIOs and
mbufs.  These are handy when debugging a KMSAN report whose
proximate and root causes are far away from each other.

Obtained from:	NetBSD
Sponsored by:	The FreeBSD Foundation
2021-08-10 21:27:53 -04:00
Hans Petter Selasky
9340ebd404 Add missing file to sys/conf/files after 469884cf04 .
Found by:	vishwin@
Differential Revision:	https://reviews.freebsd.org/D29921
MFC after:	1 week
Sponsored by:	NVIDIA Networking
2021-08-02 08:25:04 +02:00
Julien Grall
ae59812748 xen/timer: make xen timer optional
The timer is not used on ARM.

Submitted by: Elliott Mitchell <ehem+freebsd@m5p.com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D29041
2021-07-28 17:27:03 +02:00
Julien Grall
a48f7ba444 xen: move x86/xen/xenpv.c to dev/xen/bus/xenpv.c
Minor changes are necessary to make this processor-independent, but
moving the file out of x86 and into common is the first step (so
others don't add /more/ x86-isms).

Submitted by: Elliott Mitchell <ehem+freebsd@m5p.com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D29042
2021-07-28 17:27:02 +02:00
Hans Petter Selasky
b633e08c70 ibcore: Kernel space update based on Linux 5.7-rc1.
Overview:

This is the first stage of a RDMA stack upgrade introducing kernel
changes only based on Linux 5.7-rc1.

This patch is based on about four main areas of work:
- Update of the IB uobjects system:
  - The memory holding so-called AH, CQ, PD, SRQ and UCONTEXT objects
    is now managed by ibcore. This also require some changes in the
    kernel verbs API. The updated verbs changes are typically about
    initialize and deinitialize objects, and remove allocation and
    free of memory.

- Update of the uverbs IOCTL framework:
  - The parsing and handling of user-space commands has been
    completely refactored to integrate with the updated IB uobjects
    system.

- Various changes and updates to the generic uverbs interfaces in
  device drivers including the new uAPI surface.

- The mlx5_ib_devx.c in mlx5ib and related mlx5 core changes.

Dependencies:

- The mlx4ib driver code has been updated with the minimum changes
needed.

- The mlx5ib driver code has been updated with the minimum changes
needed including DV support.

Compatibility:

- All user-space facing APIs are backwards compatible after this
  change.

- All kernel-space facing RDMA APIs are backwards compatible after
  this change, with exception of ib_create_ah() and ib_destroy_ah()
  which takes a new flag.

- The "ib_device_ops" structure exist, but only contains the driver ID
  and some structure sizes.

Differences from Linux:

- Infiniband drivers must use the INIT_IB_DEVICE_OPS() macro to set
  the sizes needed for allocating various IB objects, when adding
  IB device instances.

Security:

- PRIV_NET_RAW is needed to use raw ethernet transmit features.
- PRIV_DRIVER is needed to use other privileged operations.

Based on upstream Linux, Torvalds (5.7-rc1):
8632e9b5645bbc2331d21d892b0d6961c1a08429

MFC after:	1 week
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D31149
Sponsored by:	NVIDIA Networking
2021-07-28 13:28:29 +02:00
Kristof Provost
b972a7fa9e pf: fix LINT build
We failed to list the new pf_syncookies.c file in sys/conf/files. This
worked for the usual configurations, where pf is a module, but not for
LINT builds.

Reported by:	lwhsu
MFC after:	1 week
Sponsored by:	Modirum MDPay
2021-07-20 18:08:30 +02:00
Greg V
f39d9c9131 libkern: import strnstr from libc
Required for drm-kmod 5.6 (amdgpu).

Reviewed by:		bz, hselasky, nc
Differential Revision:	https://reviews.freebsd.org/D31131
2021-07-14 17:55:08 -07:00
Warner Losh
27d997be97 cardbus: move card_if.m to sys/dev/cardbus
Move card_if.m to sys/dev/cardbus since pccard is disappearing.

Sponsored by:		Netflix
2021-07-13 20:39:30 -06:00
Navdeep Parhar
3c900106ea cxgbe(4): Update firmwares to 1.26.0.0.
Changes since 1.25.6.0 are listed here.  This list comes from the
Release Notes for "Chelsio Unified Wire 3.14.0.4 for Linux" dated
2021-07-08.

Fixes
-----

BASE:
- Wait 5ms before and after the i2c command that clears the mod_select.
  This fixes incorrect port module type read from i2c.

Obtained from:	Chelsio Communications
MFC after:	1 week
Sponsored by:	Chelsio Communications
2021-07-12 21:25:36 -07:00
Peter Grehan
517904de5c igc(4): Introduce new driver for the Intel I225 Ethernet controller.
This controller supports 2.5G/1G/100MB/10MB speeds, and allows
tx/rx checksum offload, TSO, LRO, and multi-queue operation.

The driver was derived from code contributed by Intel, and modified
by Netgate to fit into the iflib framework.

Thanks to Mike Karels for testing and feedback on the driver.

Reviewed by:	bcr (manpages), kbowling, scottl, erj
MFC after:	1 month
Relnotes:	yes
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D30668
2021-07-12 14:57:18 +10:00
Bjoern A. Zeeb
bf3a385217 fan53555: attach to build and switch from syr827
Rather than extending syr827 for syr828 (as initially done in D31103)
switch to the Fairchild Semiconductor Corporation fan53555 implementation
which is in-tree but was not attached to the build.  The fan53555
implementation also supports syr827/syr8278 already. [1]
Update NOTES and the arm64 GENERIC configuration for the switch.
syr827 for now stays in the tree but is not used by any
kernel configuration.

Suggested by:	mmel [1]
Reviewed by:	mmel, manu
Differential Revision: https://reviews.freebsd.org/D31112
2021-07-08 20:17:45 +00:00
Alexander Motin
d0732fa819 Add ocs_gendump.c to the build, missed in 29e2dbd42c. 2021-07-06 15:03:06 -04:00
Dmitry Chagin
e013e36939 linux(4): Get rid of Linuxulator kernel build options.
Stop confusing people, retire COMPAT_LINUX and COMPAT_LINUX32 kernel
build options. Since we have 32 and 64 bit Linux emulators, we can't build both
emulators together into the kernel. I don't think it matters, Linux emulation
depends on loadable modules (via rc).

Cut LINPROCFS and LINSYSFS for consistency.

PR:			215061
Reviewed by:		bcr (manpages), trasz
Differential Revision:	https://reviews.freebsd.org/D30751
MFC after:		2 weeks
2021-06-22 08:32:39 +03:00
Emmanuel Vadot
663b174b5b an: Remove driver
Last an(4) devices have been End Of Life and End Of Sale in 2007.
Time to remove this driver.

Differential Revision:	https://reviews.freebsd.org/D30679
Reviewed by:		imp (earlier version), emaste (earlier version)
Sponsored by:		Diablotin Systems
2021-06-11 21:18:04 +02:00
Navdeep Parhar
e0fa04e257 cxgbe(4): Update firmwares to 1.25.6.0.
Changes since 1.25.0.0 are listed here.  This list comes from the
Release Notes for the "Chelsio Unified Wire v3.14.0.3 for Linux"
release dated 2021-05-21.

Fixes
-----

BASE:
- Fixed Back to back T6 100G-CR4 link coming up with NO FEC sometimes.
- [T5] Try to bring up link in 1G speed if link doesn't come up on 10G.
- Fixed a bug to not allow BaseR fec in 100G speed.
- Fixed linkup issues on BT adapter in 1G and 100M speed.
- Fixed an issue to allow driver to send VI_ENABLE multiple times (once
  with rx disable and then later rx enable).
- Fixed rate limiting not working on class number 16 to 30.
- Fixed backward compatibility issue in port type interpretation with vpd
  version 0x80.

ETH:
- Fixed a case when firmware failed to deliver NIC WR completion to host.
- No rate limit support for WR ETH_TX_PKTS2 due to performance reasons.

OFLD
- Fixed a connection hang in SO adapters when tp_plen_max (set by driver)
  is more than the window size.
- Added fw_filter_vnic_mode to firmware API file (t4fw_interface.h)
- Use correct rx channel in coprocessor crypto completion (CPL_FW6_PLD). This
  was causing out of order completion to host.

FOiSCSI
- Fixed a crash due to unaligned access of ipv6 address.
- Fixed a crash during lun reset.

Enhancements
------------

ETH:
- Rate limiting support added for encapsulated (vxlan, nvgre, geneve) NIC TCP
  packets.

OFLD:
- More than 128 SGLs supported in FW_RI_FR_NSMR_WR. Now, more than 16GB
  (upto 64GB) of PBLs can be written with single FW_RI_FR_NSMR_WR.

Obtained from:	Chelsio Communications
MFC after:	1 month
Sponsored by:	Chelsio Communications
2021-05-29 01:00:20 -07:00
John Baldwin
21e3c1fbe2 Assume OCF is the only KTLS software backend.
This removes support for loadable software backends.  The KTLS OCF
support is now always included in kernels with KERN_TLS and the
ktls_ocf.ko module has been removed.  The software encryption routines
now take an mbuf directly and use the TLS mbuf as the crypto buffer
when possible.

Bump __FreeBSD_version for software backends in ports.

Reviewed by:	gallatin, markj
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D30138
2021-05-25 16:59:19 -07:00
Emmanuel Vadot
80e645dcdb mmc: Only build mmc_fdt_helper and mmc_pwrseq for arch that uses ext_resources
This is now a needed requirement and fixes powerpc* build
2021-05-21 19:35:20 +02:00
Emmanuel Vadot
5b2a81f58d mmc: Add mmc-pwrseq driver
This driver is used to power up sdio card or eMMC.
It handle the reset-gpio, clocks and needed delays for powerup/powerdown.

Sponsored by:	Diablotin Systems
Differential Revision:	https://reviews.freebsd.org/D30288
2021-05-21 17:36:20 +02:00
Roger Pau Monné
ac3ede5371 x86/xen: remove PVHv1 code
PVHv1 was officially removed from Xen in 4.9, so just axe the related
code from FreeBSD.

Note FreeBSD supports PVHv2, which is the replacement for PVHv1.

Sponsored by: Citrix Systems R&D
Reviewed by: kib, Elliott Mitchell
Differential Revision: https://reviews.freebsd.org/D30228
2021-05-17 11:41:21 +02:00
Emmanuel Vadot
47bde7925b mmccam: Add mmc_sim, a generic sim for mmc driver to use
This adds a generic sim that abstract a lot of what needs to be implemented
in a driver for mmccam support.
A new interface with three methods is added :

 - mmc_sim_get_tran_settings: Use to get what the controller supports in term
   of capabilities, freq etc ...
 - mmc_sim_set_tran_settings: Use to change the speed/freq/etc of the
   sdcard host controller
 - mmc_sim_cam_request: Used for MMCIO requests

Differential Revision:	https://reviews.freebsd.org/D27485
Reviewed by:	kibab
2021-04-27 19:00:38 +02:00
Mark Johnston
38da497a4d Add the KASAN runtime
KASAN enables the use of LLVM's AddressSanitizer in the kernel.  This
feature makes use of compiler instrumentation to validate memory
accesses in the kernel and detect several types of bugs, including
use-after-frees and out-of-bounds accesses.  It is particularly
effective when combined with test suites or syzkaller.  KASAN has high
CPU and memory usage overhead and so is not suited for production
environments.

The runtime and pmap maintain a shadow of the kernel map to store
information about the validity of memory mapped at a given kernel
address.

The runtime implements a number of functions defined by the compiler
ABI.  These are prefixed by __asan.  The compiler emits calls to
__asan_load*() and __asan_store*() around memory accesses, and the
runtime consults the shadow map to determine whether a given access is
valid.

kasan_mark() is called by various kernel allocators to update state in
the shadow map.  Updates to those allocators will come in subsequent
commits.

The runtime also defines various interceptors.  Some low-level routines
are implemented in assembly and are thus not amenable to compiler
instrumentation.  To handle this, the runtime implements these routines
on behalf of the rest of the kernel.  The sanitizer implementation
validates memory accesses manually before handing off to the real
implementation.

The sanitizer in a KASAN-configured kernel can be disabled by setting
the loader tunable debug.kasan.disable=1.

Obtained from:	NetBSD
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D29416
2021-04-13 17:42:20 -04:00
Kristof Provost
5c62eded5a pf: Introduce nvlist variant of DIOCADDRULE
This will make future extensions of the API much easier.
The intent is to remove support for DIOCADDRULE in FreeBSD 14.

Reviewed by:	markj (previous version), glebius (previous version)
MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29557
2021-04-10 11:16:00 +02:00
Konstantin Belousov
aa3ea612be x86: remove gcov kernel support
Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D29529
2021-04-02 15:41:51 +03:00
Ed Maste
0cff00ae68 retire obsolete mn(4) sync serial driver
Approved by:	phk
Relnotes:	yes
2021-03-22 15:06:51 -04:00
Hans Petter Selasky
ebe5cf355d Implement basic support for allocating memory from a specific numa node
in the LinuxKPI.

Differential Revision:	https://reviews.freebsd.org/D29077
Reviewed by:	markj@ and kib@
MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking
2021-03-09 21:01:47 +01:00
John Baldwin
92aecd1e6f ossl: Add ChaCha20 cipher support.
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D28756
2021-03-03 15:20:57 -08:00
John Baldwin
a079e38b08 ossl: Add Poly1305 digest support.
Reviewed by:	cem
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D28754
2021-03-03 15:20:57 -08:00
Allan Jude
d0673fe160 smbios: Move smbios driver out from x86 machdep code
Add it to the x86 GENERIC and MINIMAL kernels

Sponsored by:	Ampere Computing LLC
Submitted by:	Klara Inc.
Reviewed by:	rpokala
Differential Revision:	https://reviews.freebsd.org/D28738
2021-02-23 21:17:09 +00:00
Stefan Eßer
a0ba293c2f Add missing entry for zfs_racct.c 2021-02-22 15:06:48 +01:00
John Baldwin
dd2e1352b6 Add an implementation of CHACHA20_POLY1305 to cryptosoft.
This uses the chacha20 IETF and poly1305 implementations from
libsodium.  A seperate auth_hash is created for the auth side whose
Setkey method derives the poly1305 key from the AEAD key and nonce as
described in RFC 8439.

Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D27837
2021-02-18 09:26:23 -08:00
John Baldwin
fc8fc743d8 Add an OCF algorithm for ChaCha20-Poly1305 AEAD.
Note that this algorithm implements the mode defined in RFC 8439.

Reviewed by:	cem
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D27836
2021-02-18 09:26:00 -08:00
Roger Pau Monné
952667da98 xen/efi: introduce a PV interface for EFI run time services for dom0
FreeBSD when running as a dom0 under Xen is not supposed to access the
run time services directly, and instead should proxy the calls through
Xen using an hypercall interface that exposes access to selected run
time services.

Implement the efirt interface on top of the Xen provided hypercalls.

Sponsored by:		Citrix Systems R&D
Reviewed by:		kib
Differential revision:	https://reviews.freebsd.org/D28621
2021-02-16 15:26:12 +01:00
Simon J. Gerraty
66803b34a0 Only require mac_veriexec for verified_exec
The veriexec option is redundant, mac_veriexec is sufficient.

MFC after: 1 week

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2021-02-14 09:20:41 -08:00
Mateusz Guzik
af366d353b amd64: implement strlen in assembly
The C variant in libkern performs excessive branching to find the
non-zero byte instead of using the bsfq instruction. The same code
patched to use it is still slower than the routine implemented here
as the compiler keeps neglecting to perform certain optimizations
(like using leaq).

On top of that the routine can is a starting point for copyinstr
which operates on words instead of bytes.

Tested with glibc test suite.

Sample results (calls/s):

Haswell:
$(perl -e "print 'A' x 3"):
stock:	211198039
patched:338626619
asm:	465609618

$(perl -e "print 'A' x 100"):
stock:	 83151997
patched: 98285919
asm:	120719888

AMD EPYC 7R32:
$(perl -e "print 'A' x 3"):
stock:	282523617
asm:	491498172

$(perl -e "print 'A' x 100"):
stock:	114857172
asm:	112082057
2021-02-08 19:15:21 +00:00
Bjoern A. Zeeb
fa765ca73e LinuxKPI: implement devres() framework parts and two examples
This code implements a version of the devres framework found
working for various iwlwifi use cases and also providing functions
for ttm_page_alloc_dma.c from DRM.

Part of the framework replicates the consumed KPI, while others
are internal helper functions.

In addition the simple devm_k*malloc() consumers were implemented
and kvasprintf() was enhanced to also work for the devm_kasprintf()
case.
Addmittingly lkpi_devm_kmalloc_release() could be avoided but for
the overall understanding of the code and possible memory tracing
it may still be helpful.

Further devsres consumer are implemented for iwlwifi but will follow
later as the main reason for this change is to sort out overlap with
DRM.

Sponsored-by:	The FreeBSD Foundation
Obtained-from:	bz_iwlwifi
MFC After:	3 days
Reviewed-by:	hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D28189
2021-01-28 16:32:43 +00:00
Bjoern A. Zeeb
a6c2507d1b LinuxKPI: add firmware loading support
Implement linux firmware KPI compat code.
This includes: request_firmware() request_firmware_nowait(),
request_firmware_direct(), firmware_request_nowarn(),
and release_firmware().

Given we will try to map requested names from natively ported
or full-linuxkpi-using drivers to a firmware(9) auto-loading
name format (.ko file name and image name matching),
we quieten firmware(9) and print success or failure (unless
the _nowarn() version was called) in the linuxkpi implementation.
At the moment we try up-to 4 different naming combinations,
with path stripped, original name, and requested name with '/'
or '.' replaced.

We do not currently defer loading in the "nowait" case.

Sponsored-by:	The FreeBSD Foundation
Sponsored-by:	Rubicon Communications, LLC ("Netgate")
		(firmware(9) nowarn update from D27413)
MFC after:	3 days
Reviewed by:	kib, manu (looked at older versions)
Differential Revision:	https://reviews.freebsd.org/D27414
2021-01-28 16:05:32 +00:00