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
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
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
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
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
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
pccard is being removed, so remove bt3c driver since it only has PC
Card attachment. Also remove bt3cfw(8) since it's the firmware for this
driver.
Relnotes: Yes
PC Card support is being removed, so remove its attachment here. ndis
is slated to be removed entirely for 13, but that's not been done yet.
Relnotes: Yes
This change includes:
hpen - Generic / MS Windows compatible HID pen tablet driver.
hgame - Generic game controller and joystick driver.
xb360gp - Xbox360-compatible game controller driver.
Submitted by: Greg V <greg_unrelenting.technology>
Reviewed by: hselasky (as part of D27993)
hidmap is a kernel module that maps HID input usages to evdev events.
Following dependent drivers is included in the commit:
hms - HID mouse driver.
hcons - Consumer page AKA Multimedia keys driver.
hsctrl - System Controls page (Power/Sleep keys) driver.
ps4dshock - Sony DualShock 4 gamepad driver.
Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D27993
which installs /dev/uhid# alias to hidraw character device for
compatibility with some existing uhid(4) users like Firefox.
As side effect it renames traditional uhid(4) driver to hidraw
to make possible using of common unit number allocator.
Requested by: Greg V <greg_unrelenting.technology>
Reviewed by: hselasky (as part of D27992)
This driver provides raw access to HID devices through uhid(4)-compatible
interface and is based on pre-8.x uhid(4) code. Unlike uhid(4) it does
not take devices in to monopoly ownership and allows parallel access
from other drivers.
hidraw supports Linux's hidraw-compatible interface as well.
Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D27992
This change implements hid_if.m methods for HID-over-USB protocol [1].
Also, this change adds USBHID_ENABLED kernel option which changes
device_probe() priority and adds/removes PnP records to prefer usbhid
over ums, ukbd, wmt and other USB HID device drivers and vice-versa.
The module is based on uhid(4) driver. It is disabled by default for
now due to conflicts with existing USB HID drivers.
[1] https://www.usb.org/sites/default/files/hid1_11.pdf
Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D27893
hidquirk(4) is derived from usb_quirk(4) and inherits all its HID-related
functionality. It does not support ioctl(2) interface yet.
Reviewed by: hselasky
Differential revision: https://reviews.freebsd.org/D27890
This driver provides support for multiple HID driver attachments
to single HID transport backend. This ability existed in Net/OpenBSD
(uhidev and ihidev drivers) but has never been ported to FreeBSD.
Unlike Net/OpenBSD we do not use report number alone to distinct report
source but we follow MS way and use a top level collection (TLC) usage
index that report belongs to as a location key.
The driver performs child device autodiscovery based on HID report
descriptor data, proxying of HID requests from child devices to parent
transport backends and broadcasting of interrupts in backward direction.
Differential revision: https://reviews.freebsd.org/D27888
Create an abstract HID interface that provides hardware independent
access to HID capabilities and functions through the device tree.
hid_if.m resembles existing USBHID KPI and consist of next methods:
HID method USBHID variant
-----------------------------------------------------------------------
hid_intr_setup usbd_transfer_setup (INTERRUPT IN xfer)
hid_intr_unsetup usbd_transfer_unsetup (INTERRUPT IN xfer)
hid_intr_start usbd_transfer_start (INTERRUPT IN xfer)
hid_intr_stop usbd_transfer_drain (INTERRUPT IN xfer)
hid_intr_poll usbd_transfer_poll (INTERRUPT IN xfer)
hid_get_rdesc usbd_req_get_report_descriptor
hid_read No direct analog. Not intended for common use.
hid_write uhid(4) write()
hid_get_report usbd_req_get_report
hid_set_report usbd_req_set_report
hid_set_idle usbd_req_set_idle
hid_set_protocol usbd_req_set_protocol
This change is part of D27888
This does an import of quirk stubs, debugging macros from USB code and
numerous usage constants used by dependent drivers.
Besides, this change renames some functions to get a better matching
with userland library and NetBSD/OpenBSD HID code. Namely:
- Old hid_report_size() renamed to hid_report_size_max()
- New hid_report_size() calculates size of given report rather than
maximum size of all reports.
- hid_get_data_unsigned() renamed to hid_get_udata()
- hid_put_data_unsigned() renamed to hid_put_udata()
Compat shim functions are provided in usbhid.h to make possible compile
of legacy code unmodified after this change.
Reviewed by: manu, hselasky
Differential revision: https://reviews.freebsd.org/D27887
It will be used by the upcoming HID-over-i2C implementation. Should be
no-op, except hid.ko module dependency is to be added to affected drivers.
Reviewed by: hselasky, manu
Differential revision: https://reviews.freebsd.org/D27867
Only ACPI attachment is supported for now, some others depend on the
presence of smbios(4) support, which we lack on arm64.
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D28009
Enable build of IPMI over OPAL on powerpc64le
Reviewed by: bdragon
Sponsored by: Eldorado Research Institute (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D27443
- Suppress -Wredundant-decls. Ultimately this warning is harmless in
any case, and it does not look like there is a simple way to avoid
redundant declarations in this case without a lot of header pollution
(e.g. having openzfs's shim param.h pulling in sys/kernel.h for hz).
- Suppress -Wnested-externs, which is useless anyway.
Unfortunately it was not sufficient just to modify OPENZFS_CFLAGS,
because the warning suppressions need to appear on the command line
after they are explicitly enabled by CWARNFLAGS from sys/conf/kern.mk,
but OPENZFS_CFLAGS get added before due to use of -I for the shims.
Reviewed by: markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D27685
These drivers should have been removed along with tl(4) as part of
7c897ca91f and r347918 respectively
as these fromer made sure to only ever attach to the latter, e. g.:
<...>
static int
tlphy_probe(device_t dev)
{
if (!mii_dev_mac_match(dev, "tl"))
return (ENXIO);
<...>
r368193 was suppsed to rename the MOF firmware image, but the
qat_c2xxxfw makefile defined the two images in the wrong order so the
MMP image was renamed instead.
MFC after: 3 days
Sponsored by: Rubicon Communications, LLC (Netgate)
Don't tell it to look for headers in a non-existent directory.
Reviewed by: imp, mmacy
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D27565
The hme (Happy Meal Ethernet) driver was the onboard NIC in most
supported sparc64 platforms. A few PCI NICs do exist, but we have seen
no evidence of use on non-sparc systems.
Reviewed by: imp, emaste, bcr
Sponsored by: DARPA
Macfilter to route packets through different hooks based on sender MAC address.
Based on ng_macfilter written by Pekka Nikander
Sponsered by Retina b.v.
Reviewed by: afedorov
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D27268
In r367395 parts of machine dependent linux_dummy.c were moved to a new
machine independent file sys/compat/linux/linux_dummy.c and the existing
linux_dummy.c was renamed to linux_dummy_machdep.c.
Add linux_dummy_machdep.c to the linux module for i386.
Rename sys/amd64/linux32/linux_dummy.c for consistency.
Add the new linux_dummy.c to the linux module for i386.
Enable in-kernel acceleration of SHA1 and SHA2 operations on arm64 by adding
support for the ossl(4) crypto driver. This uses OpenSSL's assembly routines
under the hood, which will detect and use SHA intrinsics if they are
supported by the CPU.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27390
Make room for adding arm64 support to this driver by moving the
x86-specific feature parsing to a separate file.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27388
If firmware_get() fails to find a loaded firmware image, it searches for
candidate KLDs to load. It will search for a KLD containing a module
with the same name as the requested image, and failing that, will load a
KLD with the same basename as the requested image.
The module name given by fw_stub.awk is simply "<mangled KLD name>_fw".
QAT firmware modules contain two images, neither of which match either
of the names used during lookup, so automatic loading of firmware images
after mountroot does not work. Work around this by using the same
string for the first image name and for the KLD basename.
MFC after: 3 days
Sponsored by: Rubicon Communications, LLC (Netgate)
