Commit Graph

4361 Commits

Author SHA1 Message Date
Kyle Evans
77c89fa6f5 modules: remove stale if_wg reference
This variable isn't being used anywhere, remove it.
2021-04-15 19:59:13 -05:00
Vladimir Kondratyev
8e84712d01 hidmap: add missing opt_hid.h to module Makefile
Reported by:	pstef
MFC after:	2 weeks
2021-04-14 23:05:59 +03:00
Martin Matuska
6db169e920 zfs: merge openzfs/zfs@3522f57b6 (master)
Notable upstream pull request merges:
  #11742 When specifying raidz vdev name, parity count should match
  #11744 Use a helper function to clarify gang block size
  #11771 Support running FreeBSD buildworld on Arm-based macOS hosts

This is the last update that will be MFCed into stable/13.

From now on, the tracking of OpenZFS branches will be different:
- main continues tracking openzfs/zfs/master
- stable/13 is going to track openzfs/zfs/zfs-2.1-release

Obtained from:	OpenZFS
MFC after:	1 week
2021-04-14 12:51:51 +02:00
Warner Losh
662053e8dc hptrr: Move to using .o files
Use .o files directly. Replace the .o.uu files that we uudecode with .o files.
Adjust the kernel and module build to cope.

Suggestions by:		markj@, emaste@
Sposnored by:           Netflix, Inc
Differential Revision:	https://reviews.freebsd.org/D29636
2021-04-12 13:47:55 -06:00
Warner Losh
fddb3f4d7d hptmv: use .o files directly
uudecode the .o.uu files and commit directly to the tree. Adjust the build
infrastructure to cope with the new location, both for the kernel and modules.

Sposnored by:           Netflix, Inc
Differential Revision:	https://reviews.freebsd.org/D29635
2021-04-12 13:47:55 -06:00
Warner Losh
550cb4ab85 hpt27xx: store the .o files directly in the tree
Store the .o files directly in the tree. We no longer need to play uuencode
games like we did in the CVS days. Adjust the build infrastructure to match.

Reviewed by:            markj@
Sposnored by:           Netflix, Inc
Differential Revision:	https://reviews.freebsd.org/D29634
2021-04-12 13:47:55 -06:00
Warner Losh
5b20c5e1f8 hptnr: Store the .o files directly in the repo
We no longer need to use uuencode to uuencode files in our tree.  Store the .o
file directly instead. Adjust the build to cope with the new arrangement.

Suggestions by:		emaste, bz, donner
Reviewed by:		markm
Sposnored by:		Netflix, Inc
Differential Revision:	https://reviews.freebsd.org/D29632
2021-04-12 13:47:55 -06:00
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
Ed Maste
2f189a0688 ndis: remove leftover sys/modules/ndis
Reported by:	cognet
Fixes:		bfc99943b0 ("ndis(4): remove as previous announced")
2021-03-25 14:31:00 -04:00
Dmitry Chagin
88588c4b76 Get rid of i386 ref here as linux64 is a 64-bit module.
Reviewed By:		emaste, imp
MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D29412
2021-03-24 18:56:46 +03:00
Ka Ho Ng
74ada297e8 AMD-vi: Fix IOMMU device interrupts being overridden
Currently, AMD-vi PCI-e passthrough will lead to the following lines in
dmesg:
"kernel: CPU0: local APIC error 0x40
ivhd0: Error: completion failed tail:0x720, head:0x0."

After some tracing, the problem is due to the interaction with
amdvi_alloc_intr_resources() and pci_driver_added(). In ivrs_drv, the
identification of AMD-vi IVHD is done by walking over the ACPI IVRS
table and ivhdX device_ts are added under the acpi bus, while there are
no driver handling the corresponding IOMMU PCI function. In
amdvi_alloc_intr_resources(), the MSI intr are allocated with the ivhdX
device_t instead of the IOMMU PCI function device_t. bus_setup_intr() is
called on ivhdX. the IOMMU pci function device_t is only used for
pci_enable_msi(). Since bus_setup_intr() is not called on IOMMU pci
function, the IOMMU PCI function device_t's dinfo->cfg.msi is never
updated to reflect the supposed msi_data and msi_addr. So the msi_data
and msi_addr stay in the value 0. When pci_driver_added() tried to loop
over the children of a pci bus, and do pci_cfg_restore() on each of
them, msi_addr and msi_data with value 0 will be written to the MSI
capability of the IOMMU pci function, thus explaining the errors in
dmesg.

This change includes an amdiommu driver which currently does attaching,
detaching and providing DEVMETHODs for setting up and tearing down
interrupt. The purpose of the driver is to prevent pci_driver_added()
from calling pci_cfg_restore() on the IOMMU PCI function device_t.
The introduction of the amdiommu driver handles allocation of an IRQ
resource within the IOMMU PCI function, so that the dinfo->cfg.msi is
populated.

This has been tested on EPYC Rome 7282 with Radeon 5700XT GPU.

Sponsored by:	The FreeBSD Foundation
Reviewed by:	jhb
Approved by:	philip (mentor)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28984
2021-03-22 17:33:43 +08:00
Martin Matuska
f9693bef8d zfs: merge OpenZFS master-891568c99
Notable upstream pull request merges:
  #11652 Split dmu_zfetch() speculation and execution parts
  #11682 Fix zfs_get_data access to files with wrong generation
  #11735 Clean up RAIDZ/DRAID ereport code
  #11737 Initialize metaslab range trees in metaslab_init
  #11739 FreeBSD: make seqc asserts conditional on replay
  #11763 Allow setting bootfs property on pools with indirect vdevs
  #11767 FreeBSD: Fix memory leaks in kstats

Obtained from:	OpenZFS
MFC after:	2 weeks
2021-03-21 02:17:59 +01:00
Kyle Evans
f187d6dfbf base: remove if_wg(4) and associated utilities, manpage
After length decisions, we've decided that the if_wg(4) driver and
related work is not yet ready to live in the tree.  This driver has
larger security implications than many, and thus will be held to
more scrutiny than other drivers.

Please also see the related message sent to the freebsd-hackers@
and freebsd-arch@ lists by Kyle Evans <kevans@FreeBSD.org> on
2021/03/16, with the subject line "Removing WireGuard Support From Base"
for additional context.
2021-03-17 09:14:48 -05:00
Alexander Motin
8ea35c45d5 Include ccompile.h after opt_global.h.
This restores INVARIANTS enabling ZFS_DEBUG when built as module.

Discussed with:	freqlabs
MFC after:	1 week
2021-03-15 13:52:23 -04:00
Kyle Evans
1170485947 if_wg: fix the !INET6 support
INET is still required, so formally don't build it in !INET
configurations.
2021-03-15 00:41:38 -05:00
Kyle Evans
74ae3f3e33 if_wg: import latest fixup work from the wireguard-freebsd project
This is the culmination of about a week of work from three developers to
fix a number of functional and security issues.  This patch consists of
work done by the following folks:

- Jason A. Donenfeld <Jason@zx2c4.com>
- Matt Dunwoodie <ncon@noconroy.net>
- Kyle Evans <kevans@FreeBSD.org>

Notable changes include:
- Packets are now correctly staged for processing once the handshake has
  completed, resulting in less packet loss in the interim.
- Various race conditions have been resolved, particularly w.r.t. socket
  and packet lifetime (panics)
- Various tests have been added to assure correct functionality and
  tooling conformance
- Many security issues have been addressed
- if_wg now maintains jail-friendly semantics: sockets are created in
  the interface's home vnet so that it can act as the sole network
  connection for a jail
- if_wg no longer fails to remove peer allowed-ips of 0.0.0.0/0
- if_wg now exports via ioctl a format that is future proof and
  complete.  It is additionally supported by the upstream
  wireguard-tools (which we plan to merge in to base soon)
- if_wg now conforms to the WireGuard protocol and is more closely
  aligned with security auditing guidelines

Note that the driver has been rebased away from using iflib.  iflib
poses a number of challenges for a cloned device trying to operate in a
vnet that are non-trivial to solve and adds complexity to the
implementation for little gain.

The crypto implementation that was previously added to the tree was a
super complex integration of what previously appeared in an old out of
tree Linux module, which has been reduced to crypto.c containing simple
boring reference implementations.  This is part of a near-to-mid term
goal to work with FreeBSD kernel crypto folks and take advantage of or
improve accelerated crypto already offered elsewhere.

There's additional test suite effort underway out-of-tree taking
advantage of the aforementioned jail-friendly semantics to test a number
of real-world topologies, based on netns.sh.

Also note that this is still a work in progress; work going further will
be much smaller in nature.

MFC after:	1 month (maybe)
2021-03-14 23:52:04 -05:00
Martin Matuska
9db44a8e5d zfs: merge OpenZFS master-9305ff2ed
Notable upstream pull request merges:
  #11153 Scalable teardown lock for FreeBSD
  #11651 Don't bomb out when using keylocation=file://
  #11667 zvol: call zil_replaying() during replay
  #11683 abd_get_offset_struct() may allocate new abd
  #11693 Intentionally allow ZFS_READONLY in zfs_write
  #11716 zpool import cachefile improvements
  #11720 FreeBSD: Clean up zfsdev_close to match Linux
  #11730 FreeBSD: bring back possibility to rewind the
         checkpoint from bootloader

Obtained from:	OpenZFS
MFC after:	2 weeks
2021-03-14 02:32:14 +01:00
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
Eric Joyner
d08b8680e1 ice(4): Update to version 0.28.1-k
This updates the driver to align with the version included in
the "Intel Ethernet Adapter Complete Driver Pack", version 25.6.

There are no major functional changes; this mostly contains
bug fixes and changes to prepare for new features. This version
of the driver uses the previously committed ice_ddp package
1.3.19.0.

Signed-off-by: Eric Joyner <erj@FreeBSD.org>

Tested by:	jeffrey.e.pieper@intel.com
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D28640
2021-03-05 17:33:39 -08:00
Martin Matuska
6781b8a32e zfs: update openzfs version reference to bedbc13da
It was missed in the latest merge.

X-MFC-with:	caed7b1c39
2021-03-05 15:55:58 +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
Vladimir Kondratyev
6241b57131 hid: add opt_hid.h to modules that use HID_DEBUG
Submitted by:	Greg V <greg_AT_unrelenting_DOT_technology>
Reviewed by:	imp, wulf
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D28995
2021-03-04 01:43:29 +03:00
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
Eric Joyner
a7ac518bff ice_ddp: Update package file to 1.3.19.0
This package is intended to be used with ice(4) version 0.28.1-k.
That update will happen in a forthcoming commit.

Signed-off-by: Eric Joyner <erj@FreeBSD.org>
Sponsored by: Intel Corporation
2021-02-22 18:02:19 -08:00
Martin Matuska
ba27dd8be8 zfs: merge OpenZFS master-9312e0fd1
Notable upstream changes:
  778869fa1 Fix reporting of mount progress
  e7adccf7f Disable use of hardware crypto offload drivers on FreeBSD
  03e02e5b5 Fix checksum errors not being counted on repeated repair
  64e0fe14f Restore FreeBSD resource usage accounting
  11f2e9a49 Fix panic if scrubbing after removing a slog device

MFC after:	2 weeks
2021-02-22 13:01:17 +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
Martin Matuska
10f57cb98f zfs: bump version and install new share files
- bump version to 2.0.0-FreeBSD_gbf156c966
- install definition files for the new "-o compatibility" option
  to "zpool create"

MFC after:	2 weeks
2021-02-18 15:21:10 +01:00
Martin Matuska
184c1b9439 zfs: merge OpenZFS master-436ab35a5
- speed up writing to ZFS pools without ZIL devices (aa755b3)
- speed up importing ZFS pools (2d8f72d, a0e0199, cf0977a)
...

MFC after:		2 weeks
Reviewed by:		mjg (partial)
Tested by:		pho
Differential Revision:	https://reviews.freebsd.org/D28677
2021-02-16 02:46:28 +01:00
Alan Somers
174a7e578a ZFS: fix assertions with INVARIANTS
AFAICT, this was an oversight from
9e5787d228 (svn r364746).  That revision
inadvertently disabled assertions unconditionally.

Reviewed by:	freqlabs
MFC after:	3 days
Sponsored by:	Axcient
Differential Revision:	https://reviews.freebsd.org/D28256
2021-02-08 16:41:35 -07:00
Martin Matuska
8fb966790e zfs: update zfs_config.h to match OpenZFS gf11b09dec
Update zfs_config.h to match latest merge in FreeBSD

The version string is declared as 2.0.0-FreeBSD_gf11b09dec to provide
more information about the loaded module:
- the OpenZFS version in base is 2.0
- we are using the in tree-module ("FreeBSD")
- the last merged OpenZFS git revision ("gf11b09dec")

With future merges the git revision tag should be updated.
As we are merging from OpenZFS master branch and already include features
like dRAID, referencing patchlevel releases (2.0.1, 2.0.2) is pointless.

Reviewed by:	freqlabs
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D28447
2021-02-01 22:21:33 +01:00
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
Lutz Donnerhacke
cfd6422a52 netgraph/ng_vlan_rotate: IEEE 802.1ad VLAN manipulation netgraph type
This node is part of an A10-NSP (L2-BSA) development.

Carrier networks tend to stack three or more tags for internal
purposes and therefore hiding the service tags deep inside of the
stack. When decomposing such an access network frame, the processing
order is typically reversed: First distinguish by service, than by
other means.

This new netgragh node allows to bring the relevant VLAN in front (to
the out-most position). This way other netgraph nodes (like ng_vlan)
can operate on this specific type.

Reviewed by:	manpages (gbe), brueffer (manpages), kp
Approved by:	kp (mentor)
MFC after:	1 month
Relnotes:	yes
Sponsored by:	IKS Service GmbH
Differential Revision: https://reviews.freebsd.org/D22076
2021-01-26 16:53:24 +01:00
Brooks Davis
bfc99943b0 ndis(4): remove as previous announced
nids(4) was a clever idea in the early 2000's when the market was
flooded with 10/100 NICs with Windows-only drivers, but that hasn't been
the case for ages and the driver has had no meaningful maintenance in
ages. It only supports Windows-XP era drivers.

Also remove:
 - ndis support from wpa_supplicant
 - ndiscvt(8)

Reviewed By:	emaste, bcr (manpages)
Differential Revision:	https://reviews.freebsd.org/D27609
2021-01-25 21:45:03 +00:00
Oleksandr Tymoshenko
ed9b7f4414 armv8crypto: add AES-GCM support
Add support for AES-GCM using OpenSSL's accelerated routines.

Reviewed by:	jhb
Differential Revision:	https://reviews.freebsd.org/D27454
Sponsored by:	Ampere Computing
Submitted by:	Klara, Inc.
2021-01-21 21:41:27 -08:00
Jessica Clarke
513c5cd827 linux64: Don't pass unnecessary -S and -g to objcopy
Since we use --input-type binary these options are rather meaningless. Both
binutils and elftoolchain ignore the option in this case, but LLVM does not,
and instead strips all symbols from the output file, causing missing symbols at
run time if building with llvm-objcopy. Thus simply remove the options; the
linux module has never included them for building its VDSO (added in r283407),
but for some reason the original commit of linux64 (r283424) added them.

These should however eventually be changed to use template assembly files as is
now done for firmware and MFS_IMAGE.

Reviewed by:	emaste, trasz
Differential Revision:	https://reviews.freebsd.org/D27740
2021-01-21 01:54:52 +00:00
Jessica Clarke
32cb85d0f1 Build VirtIO modules on all architectures
Currently only amd64, i386 and powerpc build VirtIO modules, yet all other
architectures have at least one kernel configuration that includes the
transport drivers, and so they lack drivers for all the devices they don't
statically compile into the kernel. Instead, enable the build everywhere so all
architectures have the full set of device drivers available.

Reviewed by:	bryanv (earlier version), imp (earlier version)
Differential Revision:	https://reviews.freebsd.org/D28058
2021-01-21 01:21:35 +00:00
Vladimir Kondratyev
5cc21ab994 hmt: Allow I2C sampling mode support to be compiled out. 2021-01-20 23:10:07 +03:00
Vladimir Kondratyev
3e954a8bc6 hms: Workaround idle mouse drift in I2C sampling mode.
Many I2C "compatibility" mouse devices found on touchpads continue to
return last report data in sampling mode after touch has been ended.
That results in cursor drift.  Filter out such a reports with comparing
content of current report with content of previous one.

Reported by:	many
Tested by:	omatsuda, gllb (github.com)
Obtained from:	sysutils/iichid
2021-01-20 23:10:07 +03:00
Andriy Gapon
2c98edd6d6 htu21: driver for HTU21D I2C temperature and humidity sensor
MFC after:	2 weeks
Relnotes:	perhaps
2021-01-19 15:08:51 +02:00
Bryan Venteicher
9da9560c4d virtio: Add VirtIO PCI modern (V1) support
Use the existing legacy PCI driver as the basis for shared code
between the legacy and modern PCI drivers. The existing virtio_pci
kernel module will contain both the legacy and modern drivers.

Changes to the virtqueue and each device driver (network, block, etc)
for V1 support come in later commits.

Update the MMIO driver to reflect the VirtIO bus method changes, but
the modern compliance can be improved on later.

Note that the modern PCI driver requires bus_map_resource() to be
implemented, which is not the case on all archs.

The hw.virtio.pci.transitional tunable default value is zero so
transitional devices will continue to be driven via the legacy
driver.

Reviewed by: grehan (mentor)
Differential Revision: https://reviews.freebsd.org/D27856
2021-01-19 04:55:23 +00:00
Emmanuel Vadot
0a05676b44 Add driver for Synopsys Designware Watchdog timer.
This driver supports some arm and arm64 boards equipped with
"snps,dw-wdt"-compatible watchdog device.
Tested on RK3399-based board (RockPro64).
Once started watchdog device cannot be stopped.
Interrupt handler has mode to kick watchdog even when software does not do it
properly.
This can be controlled via sysctl: dev.dwwdt.prevent_restart.
Also - driver handles system shutdown and prevents from restart when system
is asked to reboot.

Submitted by:	kjopek@gmail.com
Differential Revision:	https://reviews.freebsd.org/D26761
2021-01-13 18:43:47 +01:00
Emmanuel Vadot
11d62b6f31 linuxkpi: add kernel_fpu_begin/kernel_fpu_end
With newer AMD GPUs (>=Navi,Renoir) there is FPU context usage in the
amdgpu driver.
The `kernel_fpu_begin/end` implementations in drm did not even allow nested
begin-end blocks.

Submitted by: Greg V
Reviewed By: manu, hselasky
Differential Revision: https://reviews.freebsd.org/D28061
2021-01-12 12:31:00 +01:00
Emmanuel Vadot
2c95fb753f linuxkpi: Add shrinker support
A driver can register a shrinker that will be called when the kernel
wants to free some memory.
Add support for that in linuxkpi and call the registered shrinkers
when the lowmem event is triggered.

Reviewed by:	bz
Differential Revision:	 https://reviews.freebsd.org/D27728
2021-01-12 12:31:00 +01:00
Alexander V. Chernikov
0433870efe Add fib lookup testing module.
This module intended to measure performance of routing lookups.

Uses a list of IP addresses specified by sysctl one-by-one.
Performance testing is triggered by changing sysctl OID with a number of lookups to execute.
Lookups are done by the chunks of 10K routes, entering/exiting epoch on
 chunk granularity to amortise cost.

Example:
make -C sys/modules/test/fib_lookup unload load
for i in `cat ~/ip4.txt`; do sysctl net.route.test.add_inet_addr=$i; done
for i in `cat ~/ip6.txt`; do sysctl net.route.test.add_inet6_addr=$i; done

sysctl net.route.test.run_inet=10000000

dmesg | tail

Dec 13 23:24:05 current kernel: 10000000 packets in 417240173 nanoseconds, 23967011 pps
Dec 13 23:24:06 current kernel: run: 10000000 packets vnet 0xfffff80003073f00
Dec 13 23:24:07 current kernel: 10000000 packets in 423086254 nanoseconds, 23635842 pps

Differential Revision: https://reviews.freebsd.org/D27604
2021-01-09 13:20:30 +00:00
Alexander V. Chernikov
537d134373 Bring DPDK route lookups to FreeBSD.
This change introduces loadable fib lookup modules based on
 DPDK rte_lpm lib targeted for high-speed lookups in large-scale tables.
It is based on the lookup framework described in D27401.

IPv4 module is called dpdk_lpm4. It wraps around rte_lpm [1] library.
This library implements variation of DIR24-8 [2] lookup algorithm.
Module provide lockless route lookups and in-place incremental updates,
 allowing for good RIB performance.

IPv6 module is called dpdk_lpm6. It wraps around rte_lpm6 [3] library.
Implementation can be seen as multi-bit trie where the stride or number of bits
 inspected on each level varies from level to level.
It can vary from 1 to 14 memory accesses, with 5 being the average value
 for the lengths that are most commonly used in IPv6.
Module provide lockless route lookups for global unicast addresses
 and in-place incremental updates, allowing for good RIB performance.

Implementation details:
* wrapper code lives in `sys/contrib/dpdk_rte_lpm/dpdk_lpm[6].c`.
* rte_lpm[6] implementation contains both RIB and FIB code.
 . RIB ("rule_") code, backed by array of hash tables part has been commented out,
 as base radix already provides all the necessary primitives.
* link-local lookups are currently implemented as base radix lookup.
 This part should be converted to something like read-only radix trie.

Usage detail:
Compile kernel with option FIB_ALGO and load dpdk_lpm4/dpdk_lpm6
 module at any time. They will be picked up automatically when
 amount of routes raises to several thousand.

[1]: https://doc.dpdk.org/guides/prog_guide/lpm_lib.html
[2]: http://yuba.stanford.edu/~nickm/papers/Infocom98_lookup.pdf
[3]: https://doc.dpdk.org/guides/prog_guide/lpm6_lib.html

Differential Revision: https://reviews.freebsd.org/D27412
2021-01-09 12:41:04 +00:00
Bryan Drewery
f222a6b886 dtrace: Fix /"string" == NULL/ comparisons using an uninitialized value.
A test of this is funcs/tst.strtok.d which has this filter:

    BEGIN
    /(this->field = strtok(this->str, ",")) == NULL/
    {
            exit(1);
    }
The test will randomly fail with exit status of 1 indicating that this->field
was NULL even though printing it out shows it is not.

This is compiled to the DTrace instruction set:
    // Pushed arguments not shown here
    // call strtok() and set result into %r1
    07: 2f001f01    call DIF_SUBR(31), %r1          ! strtok
    // set thread local scalar this->field from %r1
    08: 39050101    stls %r1, DT_VAR(1281)          ! DT_VAR(1281) = "field"
    // Prepare for the == comparison
    // Set right side of %r2 to NULL
    09: 25000102    setx DT_INTEGER[1], %r2         ! 0x0
    // string compare %r1 (strtok result) to %r2
    10: 27010200    scmp %r1, %r2

In this case only %r1 is loaded with a string limit set to lim1.  %r2 being
NULL does not get loaded and does not set lim2.  Then we call dtrace_strncmp()
with MIN(lim1, lim2) resulting in passing 0 and comparing neither side.
dtrace_strncmp() handles this case fine and it already has been while
being lucky with what lim2 was [un]initialized as.

Reviewed by:	markj, Don Morris <dgmorris AT earthlink.net>
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D27671
2021-01-08 14:37:17 -08:00
Warner Losh
a21def4d56 pccard: Remove wi(4) driver
Remove wi(4). pccard is going away, and wi only supports PC Card
devices, though it has a minor amount of glue to also support
PCI cards. However, removing the one without removing the other
is hard, so the whole driver is being removed.

Relnotes: Yes
2021-01-07 20:41:06 -07:00