As the reset triggering is no longer a simple macro that was just
setting appropriate flag, the new function for triggering reset was
added. It improves code readability a lot, as we are avoiding additional
indentation.
Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
The function ena_enable_msix_and_set_admin_interrupts takes two
arguments while the second is not used and so can be spared. This is a
static function, only ena.c is affected.
Submitted by: Maciej Bielski <mba@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
Tx drops statistics are fetched from HW every ena_keepalive_wd() call
and are observable using one of the commands:
* sysctl dev.ena.0.hw_stats.tx_drops
* netstat -I ena0 -d
Submitted by: Maciej Bielski <mba@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
* Removed adaptive interrupt moderation (not suported on FreeBSD).
* Use ena_com_free_q_entries instead of ena_com_free_desc.
* Don't use ENA_MEM_FREE outside of the ena_com.
* Don't use barriers before calling doorbells as it's already done in
the HAL.
* Add function that generates random RSS key, common for all driver's
interfaces.
* Change admin stats sysctls to U64.
Submitted by: Michal Krawczyk <mk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Amazon, Inc.
Although I added the reset type field to ath_hal_reset() years ago,
I never finished adding it both throughout the HALs and in if_ath.c.
This will eventually deprecate the ath_hal force_full_reset option
because it can be requested at the driver layer.
So:
* Teach ar5416ChipReset() and ar9300_chip_reset() about the HAL type
* Use it in ar5416Reset() and ar9300_reset() when doing a full chip reset
* Extend ath_reset() to include the HAL_RESET_TYPE parameter added in the above functions
* Use HAL_RESET_NORMAL in most calls to ath_reset()
* .. but use HAL_RESET_BBPANIC for the BB panics, and HAL_RESET_FORCE_COLD during fatal, beacon miss and other hardware related hangs.
This should be a glorified no-op outside of actual hardware issues.
I've tested things with ath_hal force_full_reset set to 1 for years now,
so I know that feature and a full reset works (albeit much slower than
a warm reset!) and it does unwedge hardware.
The eventual aim is to use this for all the places where the driver
detects a potential hang as well as if long calibration - ie, noise floor
calibration - fails to complete. That's one of the big hardware related
things that causes station mode operation to hang without easy recovery.
Differential Revision: https://reviews.freebsd.org/D24981
Some crypto consumers such as GELI and KTLS for file-backed sendfile
need to store their output in a separate buffer from the input.
Currently these consumers copy the contents of the input buffer into
the output buffer and queue an in-place crypto operation on the output
buffer. Using a separate output buffer avoids this copy.
- Create a new 'struct crypto_buffer' describing a crypto buffer
containing a type and type-specific fields. crp_ilen is gone,
instead buffers that use a flat kernel buffer have a cb_buf_len
field for their length. The length of other buffer types is
inferred from the backing store (e.g. uio_resid for a uio).
Requests now have two such structures: crp_buf for the input buffer,
and crp_obuf for the output buffer.
- Consumers now use helper functions (crypto_use_*,
e.g. crypto_use_mbuf()) to configure the input buffer. If an output
buffer is not configured, the request still modifies the input
buffer in-place. A consumer uses a second set of helper functions
(crypto_use_output_*) to configure an output buffer.
- Consumers must request support for separate output buffers when
creating a crypto session via the CSP_F_SEPARATE_OUTPUT flag and are
only permitted to queue a request with a separate output buffer on
sessions with this flag set. Existing drivers already reject
sessions with unknown flags, so this permits drivers to be modified
to support this extension without requiring all drivers to change.
- Several data-related functions now have matching versions that
operate on an explicit buffer (e.g. crypto_apply_buf,
crypto_contiguous_subsegment_buf, bus_dma_load_crp_buf).
- Most of the existing data-related functions operate on the input
buffer. However crypto_copyback always writes to the output buffer
if a request uses a separate output buffer.
- For the regions in input/output buffers, the following conventions
are followed:
- AAD and IV are always present in input only and their
fields are offsets into the input buffer.
- payload is always present in both buffers. If a request uses a
separate output buffer, it must set a new crp_payload_start_output
field to the offset of the payload in the output buffer.
- digest is in the input buffer for verify operations, and in the
output buffer for compute operations. crp_digest_start is relative
to the appropriate buffer.
- Add a crypto buffer cursor abstraction. This is a more general form
of some bits in the cryptosoft driver that tried to always use uio's.
However, compared to the original code, this avoids rewalking the uio
iovec array for requests with multiple vectors. It also avoids
allocate an iovec array for mbufs and populating it by instead walking
the mbuf chain directly.
- Update the cryptosoft(4) driver to support separate output buffers
making use of the cursor abstraction.
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D24545
Implement support for AHCI controller found in
NXP QorIQ Layerscape SoCs.
Submitted by: Artur Rojek <ar@semihalf.com>
Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential Revision: https://reviews.freebsd.org/D24466
This patch introduces support for Epson RX-8803 RTC controller accessible
over I2C bus. It has a resolution of 1 sec.
Support for interrupt based alarm was not implemented.
Submitted by: Kornel Duleba <mindal@semihalf.com>
Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential Revision: https://reviews.freebsd.org/D24364
Add basic TCA6416 GPIO expander support over I2C bus. The driver handles
enabling and disabling pins, setting pin mode to IN and OUT and
toggling the pins. External interrupts are not supported.
Submitted by: Dawid Gorecki <dgr@semihalf.com>
Reviewed by: manu, mmel
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential Revision: https://reviews.freebsd.org/D24363
For TLS v1.3 the 12 bytes of the initial vector, IV, should just be copied
as-is from the kernel to the gcm_iv field, which hold the first 4 bytes,
and the remaining 8 bytes go to the subsequent implicit_iv field.
There is no need to consider the byte order on the 12 bytes of IV like
initially done.
Sponsored by: Mellanox Technologies
Setting so_snd.sb_lowat to at least 1/8 of the socket buffer size allows
send thread more actively use PDUs coalescing, that dramatically reduces
TCP lock congestion and number of context switches, when the socket is
full and PDUs are small.
MFC after: 1 week
Sponsored by: iXsystems, Inc.
This is all very long-standing bug stuff that is touchy and still poorly
documented. Ok, here goes.
The basic bug:
* deleting a VAP causes the RX path (and TX path too) to be restarted
without a full chip reset, which causes RX hangs on the AR9380 and later.
(ie, the ones with the newer DMA engine.)
The basic fix:
* do an RX flush when stopping RX in ath_vap_delete() to match what happens
when RX is stopped elsewhere. This ensures any pending frames are completed
and we restart at the right spot; it also ensures we don't push new RX buffers
into the hardware if we're stopping receive.
The other issues I found:
* Don't bother checking the RX packet ring in the deferred read taskqueue;
that's specifically supposed to be for completing frames rather than
just yanking them off the receive ring.
* Cancel/drain any pending deferred read taskqueue. This isn't done inside
any locks so we should be super careful here. This stops the hardware
being reprogrammed at the same time in another thread/CPU whilst we're
stopping RX.
* .. (yes, this should be better serialised, but that's for another day. maybe.)
* Add more debugging to trace what's going on here.
And the fun bit:
* Reinitialise the RX FIFO ONLY if we've been reset or stopped, rather than just
reset. I noticed that after all the above was done I was STILL seeing RXEOL.
RXEOL isn't enabled on the AR9380 so I'd only see it if I was sending TX frames
(ie a ping where it'd be transmitted but never received) so I was not being
spammed by RXEOL. So, as long as stuff is stopped, restart it.
This seems to be doing the right thing in both AP and STA modes.
What I should do next, if I ever get time:
* as I said above, serialise the receive stop/start to include taskqueues
* monitor RXEOL on the AR9380 and I keep seeing it spammed / lockups, just
go do a full chip reset to get things back on track. It sucks, but it
is better than nothing.
Tested:
* AR9380 AP/STA mode, adding/deleting a hostap VAP to trigger the TX/RX
queue stop/start; whilst also running an iperf through it. Lots of times.
Lots. Of.. Times.
I have to dig into why I'm seeing it on chips as late as the AR9380 era
stuff (as it's marked as an AR5416 bug, but who knows!) but i'm seeing
aggregate TX frames complete with no blockack bit set. So, everything
should be treated as a failure and do a hardware reset for good measure.
Tested:
* AR9380, STA mode
* AR9580 (5GHz), AP mode
I wasn't enforcing the maximum packet length when using static rates
so although the driver was enforcing it itself OK, the statistics were
sometimes going into the wrong bin.
Tested:
* AR9380, STA mode
- Consistently use 'void *' for key schedules / key contexts instead
of a mix of 'caddr_t', 'uint8_t *', and 'void *'.
- Add a ctxsize member to enc_xform similar to what auth transforms use
and require callers to malloc/zfree the context. The setkey callback
now supplies the caller-allocated context pointer and the zerokey
callback is removed. Callers now always use zfree() to ensure
key contexts are zeroed.
- Consistently use C99 initializers for all statically-initialized
instances of 'struct enc_xform'.
- Change the encrypt and decrypt functions to accept separate in and
out buffer pointers. Almost all of the backend crypto functions
already supported separate input and output buffers and this makes
it simpler to support separate buffers in OCF.
- Remove xform_userland.h shim to permit transforms to be compiled in
userland. Transforms no longer call malloc/free directly.
Reviewed by: cem (earlier version)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D24855
This change adds Hyper-V socket feature in FreeBSD. New socket address
family AF_HYPERV and its kernel support are added.
Submitted by: Wei Hu <weh@microsoft.com>
Reviewed by: Dexuan Cui <decui@microsoft.com>
Relnotes: yes
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D24061
Fix returning from xenstore device with locks held, which triggers the
following panic:
# cat /dev/xen/xenstore
^C
userret: returning with the following locks held:
exclusive sx evtchn_ringc_sx (evtchn_ringc_sx) r = 0 (0xfffff8000650be40) locked @ /usr/src/sys/dev/xen/evtchn/evtchn_dev.c:262
Note this is not a security issue since access to the device is
limited to root by default.
Sponsored by: Citrix Systems R&D
MFC after: 1 week
Previously the driver handled the bit within itself, but did not expose
the state change to net80211 and interface layers.
This change uses net80211 KPI for rfkill signaling.
The code is modeled after similar code in iwn and wpi.
Reviewed by: adrian
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D24923
My preivous logic was a bit wrong. This caused transmissions that failed due
to a mix of short and long retries to count intermediate rates as OK if the
LONG retry count indicated some retries had made it to this intermediate rate,
but the SHORT retry count was the one that caused the whole transmit to fail.
Now status is passed in again - and this is the status for the whole transmission -
and then update_stats() does some quick math to see if the current transmission
series hit its long retry count or not before updating things as a success
or failure.
into account and remove the requirement that the MCS rate is "higher" if we're
considering a new rate.
Ok, another fun one.
* In order for reliable non-software retried higher MCS rates, the TX schedules
(inconsistently!) use hard-coded lower rates at the end of the schedule.
Now, hard-coded is a problem because (a) it means that aggregate formation
is limited by the SLOWEST rate, so I never formed large AMDU frames for
3 stream rates, and (b) if the AP disables lower rates as base rates, it
complains about "unknown rix" every frame you transmit at that rate.
So, for now just disable the third and fourth schedule entry for AMPDUs.
Now I'm forming 32k and 64k aggregates for the higher density MCS rates
much more reliably.
It would be much nicer if the rate schedule stuff wasn't fixed but instead
I'd just populate ath_rc_series[] when I fetch the rates. This is all a
holdover of ye olde pre-11n stuff and I really just need to nuke it.
But for now, ye hack.
* The check for "is this MCS rate better" based on MCS itself is just garbage.
It meant things like going MCS0->7 would be fine, and say 0->8->16 is fine,
(as they're equivalent encoding but 1,2,3 spatial streams), BUT it meant
going something like MCS7->11 would fail even though it's likely that
MCS11 would just be better, both for EWMA/BER and throughput.
So for now just use the average tx time. The "right" way for this comparison
would be to compare PHY bitrates rather than MCS / rate indexes, but I'm not
yet there. The bit rates ARE available in the PHY index, but honestly
I have a lot of other cleaning up to here before I think about that.
* Don't include the RTS/CTS retry count (and thus time) into the average tx time
caluation. It just makes temporarily failures make the rate look bad by
QUITE A LOT, as RTS/CTS exchanges are (a) long, and (b) mostly irrelevant
to the actual rate being tried. If we keep hitting RTS/CTS failures then
there's something ELSE wrong on the channel, not our selected rate.
* Fix formatting, cause reasons;
* Put back the "and the chosen rate is within 90% of the current rate" logic;
* Ensure the best rate and the current rate aren't the same; this ...
* ... fixes the packets_since_switch[] tracking to actually conut how many
frames since the rate switched, so now I know how stable stuff is; and
* Ensure that MCS can go up to a higher MCS at this or any other spatial stream.
My previous quick hack attempt was doing > rather than >= so you had to go
to both a higher root MCS rate (0..7) and spatial stream. Eg, you couldn't
go from MCS0 (1ss) to MCS8 (2ss) this way.
The best rate and switching rate logic still have a bunch more work to do
because they're still quite touchy when it comes to average tx time but at least
now it's choosing higher rates correctly when it wants to try a higher rate.
Tested:
* AR9380, STA mode
Some laptops don't send ACPI "lid status changed" notifications upon
opening the lid if the system was currently suspended. In r358219
this was partially fixed, updating the "lid_status" variable upon
resume even if there is no "status changed" notification from ACPI.
Unfortunately the fix in r358219 did not include notifying userland
via devd; this causes problems on systems using upowerd (e.g. KDE),
since upowerd remembers the most recent devd notification about the
lid status rather than querying the sysctl to get the current status.
This showed up as two symptoms when KDE's "When laptop lid closed: Sleep"
option is set:
1. 50% of the time, closing the lid would not trigger S3 sleep.
2. 50% of the time, plugging/unplugging AC power would trigger S3 sleep.
PR: 246477
MFC after: 3 days
My initial rate control code was .. suboptimal. I wanted to at least get MCS
rates sent, but it didn't do anywhere near enough to handle low signal level links
or remotely keep accurate statistics.
So, 8 years later, here's what I should've done back then.
* Firstly, I wasn't at all tracking packet sizes other than the two buckets
(250 and 1600 bytes.) So, extend it to include 4096, 8192, 16384, 32768 and
65536. I may go add 2048 at some point if I find it's useful.
This is important for a few reasons. First, when forming A-MPDU or AMSDU
aggregates the frame sizes are larger, and thus the TX time calculation
is woefully, increasingly wrong. Secondly, the behaviour of 802.11 channels
isn't some fixed thing, both due to channel conditions and radios themselves.
Notably, there was some observations done a few years ago on 11n chipsets
which noticed longer aggregates showed an increase in failed A-MPDU sub-frame
reception as you got further along in the transmit time. It could be due to
a variety of things - transmitter linearity, channel conditions changing,
frequency/phase drift, etc - but the observation was to potentially form
shorter aggregates to improve BER.
* .. and then modify the ath TX path to report the length of the aggregate sent,
so as the statistics kept would line up with the correct bucket.
* Then on the rate control look-up side - i was also only using the first frame
length for an A-MPDU rate control lookup which isn't good enough here.
So, add a new method that walks the TID software queue for that node to
find out what the likely length of data available is. It isn't ALL of the
data in the queue because we'll only ever send enough data to fit inside the
block-ack window, so limit how many bytes we return to roughly what ath_tx_form_aggr()
would do.
* .. and cache that in the first ath_buf in the aggregate so it and the eventual
AMPDU length can be returned to the rate control code.
* THEN, modify the rate control code to look at them both when deciding which bucket
to attribute the sent frame on. I'm erring on the side of caution and using the
size bucket that the lookup is based on.
Ok, so now the rate lookups and statistics are "more correct". However, MCS rates
are not the same as 11abg rates in that they're not a monotonically incrementing
set of faster rates and you can't assume that just because a given MCS rate fails,
the next higher one wouldn't work better or be a lower average tx time.
So, I had to do a bunch of surgery to the best rate and sample rate math.
This is the bit that's a WIP.
* First, simplify the statistics updates (update_stats()) to do a single pass on
all rates.
* Next, make sure that each rate average tx time is updated based on /its/ failure/success.
Eg if you sent a frame with { MCS15, MCS12, MCS8 } and MCS8 succeeded, MCS15 and MCS
12 would have their average tx time updated for /their/ part of the transmission,
not the whole transmission.
* Next, EWMA wasn't being fully calculated based on the /failures/ in each of the
rate attempts. So, if MCS15, MCS12 failed above but MCS8 didn't, then ensure
that the statistics noted that /all/ subframes failed at those rates, rather than
the eventual set of transmitted/sent frames. This ensures the EWMA /and/ average
TX time are updated correctly.
* When picking a sample rate and initial rate, probe rates aroud the current MCS
but limit it to MCS0..7 /for all spatial streams/, rather than doing crazy things
like hitting MCS7 and then probing MCS8 - MCS8 is basically MCS0 but two spatial
streams. It's a /lot/ slower than MCS7. Also, the reverse is true - if we're at
MCS8 then don't probe MCS7 as part of it, it's not likely to succeed.
* Fix bugs in pick_best_rate() where I was /immediately/ choosing the highest MCS
rate if there weren't any frames yet transmitted. I was defaulting to 25% EWMA and
.. then each comparison would accept the higher rate. Just skip those; sampling
will fill in the details.
So, this seems to work a lot better. It's not perfect; I'm still seeing a lot of
instability around higher MCS rates because there are bursts of loss/retransmissions
that aren't /too/ bad. But i'll keep iterating over this and tidying up my hacks.
Ok, so why this still something I'm poking at? rather than porting minstrel_ht?
ath_rate_sample tries to minimise airtime, not maximise throughput. I have
extended it with an EWMA based on sub-frame success/failures - high MCS rates
that have partially successful receptions still show super short average frame
times, but a /lot/ of retransmits have to happen for that to work.
So for MCS rates I also track this EWMA and ensure that the rates I'm choosing
don't have super crappy packet failures. I don't mind not getting lower
peak throughput versus minstrel_ht; instead I want to see if I can make "minimise
airtime" work well.
Tested:
* AR9380, STA mode
* AR9344, STA mode
* AR9580, STA/AP mode
This function is responsible for setting pc_domain in each pcpu
structure. Call it from the main function that starts APs, rather than
a separate SYSINIT. This makes it easier to close the window where
UMA's per-CPU slab allocator may be called while pc_domain is
uninitialized. In particular, the allocator uses pc_domain to allocate
domain-local pages, so allocations before this point end up using domain
0 for everything.
Reviewed by: kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D24757
__builtin_unreachable doesn't raise any compile-time warnings/errors on its
own, so problems with its usage can't be easily detected. While it would be
nice for this situation to change and compilers to at least add a warning
for trivial cases where local state means the instruction can't be reached,
this isn't the case at the moment and likely will not happen.
This commit adds an __assert_unreachable, whose intent is incredibly clear:
it asserts that this instruction is unreachable. On INVARIANTS builds, it's
a panic(), and on non-INVARIANTS it expands to __unreachable().
Existing users of __unreachable() are converted to __assert_unreachable,
to improve debuggability if this assumption is violated.
Reviewed by: mjg
Differential Revision: https://reviews.freebsd.org/D23793
So, replicate the ATI vendor snoop configuration for the AMD vendor.
I think that this should fix a number of cases where users currently
have to resort to polling or disabling MSI.
MFC after: 1 week
Right now (well, since I did this in 2011/2012) the rate control code
makes some super bad choices for 11n aggregates/rates, and it tracks
statistics even more questionably.
It's been long enough and I'm now trying to use it again daily, so let's
start by:
* telling the rate control code if it's an aggregate or not;
* being clearer about the TID - yes it can be extracted from the
ath_buf but this way it can be overridden by the caller without
changing the TID itself.
(This is for doing experiments with voice/video QoS at some point..)
* Return an optional field to limit how long the aggregate is in
microseconds. Right now the rate control code supplies a rate table
and the ath aggr form code will look at the rate table and limit
the aggregate size to 4ms at the slowest rate. Yeah, this is pretty
terrible.
* Add some more TODO comments around handling txpower, rate and
handling filtered frames status so if I continue to have spoons for
this I can go poke at it.
Yes, people shouldn't use bitfields in C for structure parsing.
If someone ever wants a cleanup task then it'd be great to remove them
from this vendor code and other places in the ar9285/ar9287 HALs.
Alas, here we are.
AH_BYTE_ORDER wasn't defined and neither were the two values it could be.
So when compiling ath_ee_print_9300 it'd default to the big endian struct
layout and get a WHOLE lot of stuff wrong.
So:
* move AH_BYTE_ORDER into ath_hal/ah.h where it can be used by everyone.
* ensure that AH_BYTE_ORDER is actually defined before using it!
This should work on both big and little endian platforms.
There are no in-kernel consumers.
Reviewed by: cem
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24775
It no longer has any in-kernel consumers via OCF. smbfs still uses
single DES directly, so sys/crypto/des remains for that use case.
Reviewed by: cem
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24773
There are no longer any in-kernel consumers. The software
implementation was also a non-functional stub.
Reviewed by: cem
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24771
Although a few drivers supported this algorithm, there were never any
in-kernel consumers. cryptosoft and cryptodev never supported it,
and there was not a software xform auth_hash for it.
Reviewed by: cem
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24767
Pursuant to r360398, implement driver-specific versions of the
ifdi_needs_restart iflib device method.
Some (if not most?) Intel network cards don't need reinitializing when a
VLAN is added or removed from the device hardware, so these implement
ifdi_needs_restart in a way that tell iflib not to bring the interface
up or down when a VLAN is added or removed, regardless of whether the
VLAN_HWFILTER interface capability flag is set or not.
This could potentially solve several PRs relating to link flaps that
occur when VLANs are added/removed to devices.
Signed-off-by: Eric Joyner <erj@freebsd.org>
PR: 240818, 241785
Reviewed by: gallatin@, olivier@
MFC after: 3 days
MFC with: r360398
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D24659
r360870 added linux/slab.h into liunx/bitmap.h and this include linux/types.h
The qlnx driver is redefining some of those types so remove them and add an
explicit linux/types.h include.
Pointy hat: manu
Reported by: Austin Shafer <ashafer@badland.io>
Some ethernet switches have very large register windows; for example
the AR8316 switch MIB starts at 0x20000.
Submitted by: Mori Hiroki <yamori813@yahoo.co.jp>
The attach method uses GPIO_GET_BUS() to get a "newbus" device
that provides a pin. But on hints-based systems a GPIO controller
driver might not be fully initialized yet and it does not know gpiobus
hanging off it. Thus, GPIO_GET_BUS() cannot be called yet.
The reason is that controller drivers typically create a child gpiobus
using gpiobus_attach_bus() and that leads to the following call chain:
gpiobus_attach_bus() -> gpiobus_attach() ->
bus_generic_attach(gpiobus) -> gpioiic_attach().
So, gpioiic_attach() is called before gpiobus_attach_bus() returns.
I observed this bug with nctgpio driver on amd64.
I think that the problem was introduced in r355276.
The fix is to avoid calling GPIO_GET_BUS() from the attach method.
Instead, we know that on hints-based systems only the parent gpiobus can
provide the pins.
Nothing is changed for FDT-based systems.
MFC after: 1 week
Sometimes, especially when there is not much memory in the system left,
allocating mbuf jumbo clusters (like 9KB or 16KB) can take a lot of time
and it is not guaranteed that it'll succeed. In that situation, the
fallback will work, but if the refill needs to take a place for a lot of
descriptors at once, the time spent in m_getjcl looking for memory can
cause system unresponsiveness due to high priority of the Rx task. This
can also lead to driver reset, because Tx cleanup routine is being
blocked and timer service could detect that Tx packets aren't cleaned
up. The reset routine can further create another unresponsiveness - Rx
rings are being refilled there, so m_getjcl will again burn the CPU.
This was causing NVMe driver timeouts and resets, because network driver
is having higher priority.
Instead of 16KB jumbo clusters for the Rx buffers, 9KB clusters are
enough - ENA MTU is being set to 9K anyway, so it's very unlikely that
more space than 9KB will be needed.
However, 9KB jumbo clusters can still cause issues, so by default the
page size mbuf cluster will be used for the Rx descriptors. This can have a
small (~2%) impact on the throughput of the device, so to restore
original behavior, one must change sysctl "hw.ena.enable_9k_mbufs" to
"1" in "/boot/loader.conf" file.
As a part of this patch (important fix), the version of the driver
was updated to v2.1.2.
Submitted by: cperciva
Reviewed by: Michal Krawczyk <mk@semihalf.com>
Reviewed by: Ido Segev <idose@amazon.com>
Reviewed by: Guy Tzalik <gtzalik@amazon.com>
MFC after: 3 days
PR: 225791, 234838, 235856, 236989, 243531
Differential Revision: https://reviews.freebsd.org/D24546
The bus is independent of the device, so all devices can be attached to
either a PCI bus or an MMIO bus. For example, QEMU's virtio-rng-device
gives the MMIO variant of virtio-rng-pci, and is now detected.
Reviewed by: andrew, br, brooks (mentor)
Approved by: andrew, br, brooks (mentor)
Differential Revision: https://reviews.freebsd.org/D24730
The non-legacy virtio MMIO specification drops the use of PFNs and
replaces them with physical addresses. Whilst many implementations are
so-called transitional devices, also implementing the legacy
specification, TinyEMU[1] does not. Device-specific configuration
registers have also changed to being little-endian, and must be accessed
using a single aligned access for registers up to 32 bits, and two
32-bit aligned accesses for 64-bit registers.
[1] https://bellard.org/tinyemu/
Reviewed by: br, brooks (mentor)
Approved by: br, brooks (mentor)
Differential Revision: https://reviews.freebsd.org/D24681
With the removal of in-tree consumers of DES, Triple DES, and
MD5-HMAC, the only algorithm this driver still supports is SHA1-HMAC.
This is not very useful as a standalone algorithm (IPsec AH-only with
SHA1 would be the only user).
This driver has also not been kept up to date with the original driver
in OpenBSD which supports a few more cards and AES-CBC on newer cards.
The newest card currently supported by this driver was released in
2005.
Reviewed by: cem
MFC after: 1 week
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24691
Only _BCL and _BCM methods seem to be essential to the driver's
operation. If _BQC is missing then we can assume that the current
brightness is whatever we set by the last _BCM invocation. If _DCS or
_DGS is missing the we can make assumptions as well.
The change is based on a patch suggested by Anthony Jenkins
<Scoobi_doo@yahoo.com> in PR 207086.
PR: 207086
Submitted by: Anthony Jenkins <Scoobi_doo@yahoo.com (earlier version)
Reviewed by: manu
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D24653
"F lock" is a switch between two sets of scancodes for function keys F1-F12
found on some Logitech and Microsoft PS/2 keyboards [1]. When "F lock" is
pressed, then F1-F12 act as function keys and produce usual keyscans for
these keys. When "F lock" is depressed, F1-F12 produced the same keyscans
but prefixed with E0.
Some laptops use [2] E0-prefixed F1-F12 scancodes for non-standard keys.
[1] https://www.win.tue.nl/~aeb/linux/kbd/scancodes-6.html
[2] https://reviews.freebsd.org/D21565
MFC after: 2 weeks
o Shrink sglist(9) functions to work with multipage mbufs down from
four functions to two.
o Don't use 'struct mbuf_ext_pgs *' as argument, use struct mbuf.
o Rename to something matching _epg.
Reviewed by: gallatin
Differential Revision: https://reviews.freebsd.org/D24598
The following series of patches addresses three things:
Now that array of pages is embedded into mbuf, we no longer need
separate structure to pass around, so struct mbuf_ext_pgs is an
artifact of the first implementation. And struct mbuf_ext_pgs_data
is a crutch to accomodate the main idea r359919 with minimal churn.
Also, M_EXT of type EXT_PGS are just a synonym of M_NOMAP.
The namespace for the newfeature is somewhat inconsistent and
sometimes has a lengthy prefixes. In these patches we will
gradually bring the namespace to "m_epg" prefix for all mbuf
fields and most functions.
Step 1 of 4:
o Anonymize mbuf_ext_pgs_data, embed in m_ext
o Embed mbuf_ext_pgs
o Start documenting all this entanglement
Reviewed by: gallatin
Differential Revision: https://reviews.freebsd.org/D24598
All callers are currently filtering bad nsid to this function,
however, we'll have undefined behavior if that's not true. Add the
KASSERT to prevent that.
Add the nvmeX device to the XPT_PATH_INQ nvme specific
information. while one could figure this out by looking up the
domain🚌slot:function, it's a lot easier to have the SIM set it
directly since the sim knows this.
This largely reuses the TLS TOE support added in r330884. However,
this uses the KTLS framework in upstream OpenSSL rather than requiring
Chelsio-specific patches to OpenSSL. As with the existing TLS TOE
support, use of RX offload requires setting the tls_rx_ports sysctl.
Reviewed by: np
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24453
- Add a new TCP_RXTLS_ENABLE socket option to set the encryption and
authentication algorithms and keys as well as the initial sequence
number.
- When reading from a socket using KTLS receive, applications must use
recvmsg(). Each successful call to recvmsg() will return a single
TLS record. A new TCP control message, TLS_GET_RECORD, will contain
the TLS record header of the decrypted record. The regular message
buffer passed to recvmsg() will receive the decrypted payload. This
is similar to the interface used by Linux's KTLS RX except that
Linux does not return the full TLS header in the control message.
- Add plumbing to the TOE KTLS interface to request either transmit
or receive KTLS sessions.
- When a socket is using receive KTLS, redirect reads from
soreceive_stream() into soreceive_generic().
- Note that this interface is currently only defined for TLS 1.1 and
1.2, though I believe we will be able to reuse the same interface
and structures for 1.3.
Instead, copy the strings into a temporary buffer on the stack and
run strcmp on the copies.
Reviewed by: brooks, kib
Obtained from: CheriBSD
MFC after: 1 week
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24567
Some models of laptops e.g. "X1 Carbon 3rd Gen Thinkpad" have LRM buttons
wired as so called "Synaptic touchpads extended buttons" rather thah real
trackpoint buttons. Handle this case with merging of events from both
sources.
PR: 245877
Reported by: Raichoo <raichoo@googlemail.com>
MFC after: 1 week
Kernel prints the device announcement before the attach method is
called, so if the correct description is not set by the probe method,
then the announcement would have an incorrect one.
MFC after: 1 week
Use DRIVER_MODULE_ORDERED(SI_ORDER_ANY) so that ig4's ACPI attachment
happens after iicbus and acpi_iicbus drivers are registered.
I have seen a problem where iicbus attached under ig4 instead of
acpi_iicbus when ig4.ko was loaded with kldload. I believe that that
happened because ig4 driver was a first driver to register, it attached
and created an iicbus child. Then iicbus driver was registered and,
since it was the only driver that could attach to the iicbus child
device, it did exactly that. After that acpi_iicbus driver was
registered. It would be able to attach to the iicbus device, but it was
already attached, so nothing happened.
MFC after: 2 weeks
In r360131, acpi_ec probe was changed to not clobber an error status prior to
several error cases that did not explicitly set the error variable before
goto'ing the exit path. However, I did not notice that the error variable was
not set to success in the success path. That caused all successful probes to
fail, which is obviously undesirable.
PR: 245778
Reported by: Neel Chauhan <neel AT neelc.org>, Evilham <contact AT evilham.com>
Tested by: Evilham
X-MFC-With: r360131
as the dma_device during RDMA registration.
cxgbe's struct device cannot be used as-is because it's a native FreeBSD
driver and ibcore is LinuxKPI based.
MFC after: 1 week
MFC after: r360196
The sole in-tree user of this flag has been retired, so remove this
complexity from all drivers. While here, add a helper routine drivers
can use to read the current request's IV into a local buffer. Use
this routine to replace duplicated code in nearly all drivers.
Reviewed by: cem
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D24450
In r360126, I meant to have a different mask only on powerpc, not powerpc64.
Update the check to check that we're not compiling for powerpc64.
Reported by: jhibbits
Approved by: wulf (implicit)
MFC after: 2 weeks
X-MFC-Note: 12 only
X-MFC-With: r360126
Differential Revision: D24370 (followup)
All of the 'goto out;' cases in this probe routine without explicit
initialization of 'ret' indicate error cases and were clearly intended
to use the initial definition of 'ret' with ENXIO. However, 'ret' was
accidentally squashed by reuse for a subroutine call near the beginning
of probe.
Use a different variable for the subroutine status to preserve ENXIO ret
for the 'goto out's as a minimal solution to the panic reported at attach
for now.
PR: 245757
Change kern.evdev.rcpt_mask from 3 to 12 by default. This makes us much
more evdev-friendly, and will prevent everyone using xorg and wayland with
evdev devices (the default) from needing to change this locally.
powerpc32 still uses the old value for the keyboard part, becaues the adb
keyboard driver used there is not evdev compatible.
Reviewed by: wulf
Approved by: wulf
MFC after: 2 weeks
X-MFC-Note: 12 only
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D24370
elements in the middle.
This fixes a panic when detaching USB mouse.
PR: 245732
Reviewed by: wulf
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D24500
don't implement link power management, LPM.
This fixes error code XHCI_TRB_ERROR_BANDWIDTH for isochronous USB 3.0
transactions.
Submitted by: Horse Ma <Shichun.Ma@dell.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
snd_hda was rewritten in r230130; one function retained a comment
referencing the previous name.
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
A later change, currently being iterated on in D24459, will in-fact change
the lock type to an sx so that TTY drivers can sleep on it if they need to.
Committing this ahead of time to make the review in question a little more
palatable.
tty_lock_assert() is unfortunately still needed for now in two places to
make sure that the tty lock has not been recursed upon, for those scenarios
where it's supplied by the TTY driver and possibly a mutex that is allowed
to recurse.
Suggested by: markj
On my Dell Latitude 7390 laptop, the brightness hotkeys
(Fn+<up/down arrow>) send ACPI notifications which acpi_video
handles by adjusting its brightness setting; but ACPI does not
actually do anything with the backlight.
Announcing brightness changes via devd makes it possible to close
the loop by triggering the intel_backlight utility to perform the
required backlight adjustment.
Reviewed by: imp
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D24424
Name each ehci driver uniquely.
This remove the warning printed at each arm boot :
module_register: cannot register simplebus/ehci from kernel; already loaded from kernel
A similar fix was done in r333074 but imx_ehci wasn't renamed and generic_ehci wasn't
present at that time.
KTLS uses the flowid to distribute software encryption tasks among its
pool of worker threads. Without this change, all software KTLS
requests for TOE sockets ended up on the first worker thread.
Note that the flowid for TOE sockets created via connect() is not a
hash of the 4-tuple, but is instead the id of the TOE pcb (tid). The
flowid of TOE sockets created from TOE listen sockets do use the
4-tuple RSS hash as the flowid since the firmware provides the hash in
the message containing the original SYN.
Reviewed by: np (earlier version)
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24348
This fixes a panic when unloading and reloading t4_tom.ko since the
old pointer is still stored when t4_tom_load tries to set it.
Reviewed by: np
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24358
This pattern is used in callbacks with void * data arguments and seems
both relatively uncommon and relatively harmless. Silence the warning
by casting through uintptr_t.
This warning is on by default in Clang 11.
Reviewed by: arichardson
Obtained from: CheriBSD (partial)
MFC after: 1 week
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24425
If the fdt node doesn't have a cd-gpios properties or if the node is set
as non-removable we do not init the card detection timeout task as it is
useless so don't schedule it too.
MFC after: 1 month
X-MFC-With: r359924
This fixes a panic that would occur when the timer tried to close a
stale socket.
Submitted by: Krishnamraju Eraparaju @ Chelsio
MFC after: 1 week
Sponsored by: Chelsio Communications
Copy the CP, PTRIN, etc macros from freebsd32.h into a sys/abi_compat.h
and replace existing definitation with includes where required. This
eliminates duplicate code and allows Linux and FreeBSD compatability
headers to be included in the same files.
Input from: cem, jhb
Obtained from: CheriBSD
MFC after: 2 weeks
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24275
the dts to find the supported speeds and the regulators.
Not all DTS have every settings properly defined so host controller
will still have to add some caps themselves.
It also add a mmc_fdt_gpio_setup function which will read the cd-gpios
property and register it as the CD pin.
If the pin support interrupts one will be registered and the cd_helper
function will be called.
If the pin doesn't support interrupts the internal taskqueue will poll
for change and call the same cd_helper function.
mmc_fdt_gpio_setup will also parse the wp-gpio property and MMC drivers
can know the write-protect pin value by calling the
mmc_fdt_gpio_get_readonly function.
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D23267
While the original implementation of unmapped mbufs was a large
step forward in terms of reducing cache misses by enabling mbufs
to carry more than a single page for sendfile, they are rather
cache unfriendly when accessing the ext_pgs metadata and
data. This is because the ext_pgs part of the mbuf is allocated
separately, and almost guaranteed to be cold in cache.
This change takes advantage of the fact that unmapped mbufs
are never used at the same time as pkthdr mbufs. Given this
fact, we can overlap the ext_pgs metadata with the mbuf
pkthdr, and carry the ext_pgs meta directly in the mbuf itself.
Similarly, we can carry the ext_pgs data (TLS hdr/trailer/array
of pages) directly after the existing m_ext.
In order to be able to carry 5 pages (which is the minimum
required for a 16K TLS record which is not perfectly aligned) on
LP64, I've had to steal ext_arg2. The only user of this in the
xmit path is sendfile, and I've adjusted it to use arg1 when
using unmapped mbufs.
This change is almost entirely mechanical, except that we
change mb_alloc_ext_pgs() to no longer allow allocating
pkthdrs, the change to avoid ext_arg2 as mentioned above,
and the removal of the ext_pgs zone,
This change saves roughly 2% "raw" CPU (~59% -> 57%), or over
3% "scaled" CPU on a Netflix 100% software kTLS workload at
90+ Gb/s on Broadwell Xeons.
In a follow-on commit, I plan to remove some hacks to avoid
access ext_pgs fields of mbufs, since they will now be in
cache.
Many thanks to glebius for helping to make this better in
the Netflix tree.
Reviewed by: hselasky, jhb, rrs, glebius (early version)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D24213
uart(4) backends currently detect RX FIFO overrun errors and report
them to the uart(4) core layer. They are then reported to the generic
TTY layer which promptly ignores them. As a result, there is
currently no good way to determine if a uart is experiencing RX FIFO
overruns. One could add a generic per-tty counter, but there did not
appear to be a good way to export those. Instead, add a sysctl under
the uart(4) sysctl tree to export the count of overruns.
Reviewed by: brooks
MFC after: 2 weeks
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24368
Shifting right by 1 is not the same as dividing by 2 for signed
values. In particular, dividing a signed value by 2 gives the integer
ceiling of the (e.g. -5 / 2 == -2) whereas shifting right by 1 always
gives the floor (-5 >> 1 == -3).
An embedded board with a 25 Mhz base clock results in an error of
-30.5% when used with a baud rate of 115200. Using division, this
truncates to -30% and is permitted. Using the shift, this fails and
is rejected causing TIOCSETA requests to fail with EINVAL and breaking
getty(8).
Using division gives the same error range for both over and under baud
rates and also makes the code match the behavior documented in the
existing comment about supporting boards with 25 Mhz clocks.
Reported by: imp
MFC after: 2 weeks
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D24367
A T6 adapter contains two crypto engines on separate channels. This
commit distributes sessions between the two engines. Previously, only
the first engine was used.
Reviewed by: np
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24347
There are several reports of "hdac0: Command timeout on address 2"
messages emitted during playback on a variety of contemporary machines.
Show the command that timed out in case it might provide a clue in
finding the cause.
PR: 229190
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
The comment previously stated the delay must be at least 250us but that
was insufficient and so should be doubled, but the delay was actually
1000. The HDA spec actually says the delay must be 521 us (25 frames)
so update the comment to match.
Recognize new micro-architecture in hwpmc_intel driver. Based on Intel
document 325462-071US. Tested with tools/test/hwpmc/pmctest.py
on Atom E3930 SoC.
Submitted by: Dawid Gorecki <dgr@semihalf.com>
Reviewed by: kib
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D24310
When using SACK it can happen there are multiple option headers.
Don't drop these packets, but instead limit the amount of inlining
to the maximum supported.
MFC after: 1 week
Sponsored by: Mellanox Technologies
This includes 14 bytes of ethernet header and 2 bytes of VLAN header.
This allows for making assumptions about the inline size limit
in the fast transmit path later on.
Use a signed integer variable to catch underflow.
MFC after: 1 week
Sponsored by: Mellanox Technologies
The reporter is developing a frame buffer driver for hardware using
3 bytes per pixel, but a stride that's a multiple of 256. Previously
this resulted in writing beyond the end of each stride. On the last
row this attempted to write past the end of the frame buffer, triggering
the assertion in vt_fb_mem_wr1().
PR: 243533
MFC after: 2 weeks
Submitted by: Thomas Skibo
This is mostly indentation whitespace, and reflowing a few multiline
comments. This gets a bunch of minor stuff out of the way so that the diffs
for style don't clutter up the diffs for some upcoming functional changes.
Submitted by: Thomas Skibo
Differential Revision: https://reviews.freebsd.org/D24226
This driver hasn't been relevant in almost 15 years. It was for a product on the
shelves for about 6 months in 2003/2004. I've not updated the driver since then,
and have had nobody talk to me about it since maybe 2006 or 2007. It doesn't
implement a standard interface, and can be better done with libusb. All the
action has moved to webcamd for newer, more fully featured hardware. It makes no
appearances in the nycbug dmesg archive.
Relnotes: yes
MFC After: 3 days
This allows clean handoff from BIOS implementing some asynchronous I/O to
the OS AHCI driver. During attach driver declares OS ownership request
and waits from 25ms to 2s for BIOS to complete operation and release the
hardware.
MFC after: 2 weeks
JMB582 has 2 6Gbps SATA ports and PCIe 3.0 x1.
JMB585 has 5 6Gbps SATA ports and PCIe 3.0 x2.
Both chips support AHCI v1.31, Port Multiplier with FBS and 8 MSI vectors.
MFC after: 2 weeks
device. This requires some structural refactoring inside the driver, mostly
about converting existing audio channel structures into arrays.
The main audio mixer is provided by the first PCM instance.
The non-first audio instances may only have a software mixer for PCM playback.
Tested by: Horse Ma <Shichun.Ma@dell.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
key is pressed at the same time as a regular key, that means key with
modifier is output. Some automated USB keyboards like Yubikeys need this.
This fixes a regression issue after r357861.
Reported by: Adam McDougall <mcdouga9@egr.msu.edu>
PR: 224592
PR: 233884
MFC after: 3 days
Sponsored by: Mellanox Technologies
Incompatibility between i386 and amd64 evdev ABIs was caused by presence of
'struct timeval' in evdev protocol. Replace it with 'struct timeval32' for
32 bit binaries.
Big-endian platforms may require additional work due to bitstr_t (array of
unsigned longs) usage in ioctl interface.
MFC after: 2 weeks
If hdaa is used in polling mode, it logs each change to the poll
interval under bootverbose, which makes it unusable (slow). These
messages are arguably useless or are a debugging leftovers at best.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
- The linked list of cryptoini structures used in session
initialization is replaced with a new flat structure: struct
crypto_session_params. This session includes a new mode to define
how the other fields should be interpreted. Available modes
include:
- COMPRESS (for compression/decompression)
- CIPHER (for simply encryption/decryption)
- DIGEST (computing and verifying digests)
- AEAD (combined auth and encryption such as AES-GCM and AES-CCM)
- ETA (combined auth and encryption using encrypt-then-authenticate)
Additional modes could be added in the future (e.g. if we wanted to
support TLS MtE for AES-CBC in the kernel we could add a new mode
for that. TLS modes might also affect how AAD is interpreted, etc.)
The flat structure also includes the key lengths and algorithms as
before. However, code doesn't have to walk the linked list and
switch on the algorithm to determine which key is the auth key vs
encryption key. The 'csp_auth_*' fields are always used for auth
keys and settings and 'csp_cipher_*' for cipher. (Compression
algorithms are stored in csp_cipher_alg.)
- Drivers no longer register a list of supported algorithms. This
doesn't quite work when you factor in modes (e.g. a driver might
support both AES-CBC and SHA2-256-HMAC separately but not combined
for ETA). Instead, a new 'crypto_probesession' method has been
added to the kobj interface for symmteric crypto drivers. This
method returns a negative value on success (similar to how
device_probe works) and the crypto framework uses this value to pick
the "best" driver. There are three constants for hardware
(e.g. ccr), accelerated software (e.g. aesni), and plain software
(cryptosoft) that give preference in that order. One effect of this
is that if you request only hardware when creating a new session,
you will no longer get a session using accelerated software.
Another effect is that the default setting to disallow software
crypto via /dev/crypto now disables accelerated software.
Once a driver is chosen, 'crypto_newsession' is invoked as before.
- Crypto operations are now solely described by the flat 'cryptop'
structure. The linked list of descriptors has been removed.
A separate enum has been added to describe the type of data buffer
in use instead of using CRYPTO_F_* flags to make it easier to add
more types in the future if needed (e.g. wired userspace buffers for
zero-copy). It will also make it easier to re-introduce separate
input and output buffers (in-kernel TLS would benefit from this).
Try to make the flags related to IV handling less insane:
- CRYPTO_F_IV_SEPARATE means that the IV is stored in the 'crp_iv'
member of the operation structure. If this flag is not set, the
IV is stored in the data buffer at the 'crp_iv_start' offset.
- CRYPTO_F_IV_GENERATE means that a random IV should be generated
and stored into the data buffer. This cannot be used with
CRYPTO_F_IV_SEPARATE.
If a consumer wants to deal with explicit vs implicit IVs, etc. it
can always generate the IV however it needs and store partial IVs in
the buffer and the full IV/nonce in crp_iv and set
CRYPTO_F_IV_SEPARATE.
The layout of the buffer is now described via fields in cryptop.
crp_aad_start and crp_aad_length define the boundaries of any AAD.
Previously with GCM and CCM you defined an auth crd with this range,
but for ETA your auth crd had to span both the AAD and plaintext
(and they had to be adjacent).
crp_payload_start and crp_payload_length define the boundaries of
the plaintext/ciphertext. Modes that only do a single operation
(COMPRESS, CIPHER, DIGEST) should only use this region and leave the
AAD region empty.
If a digest is present (or should be generated), it's starting
location is marked by crp_digest_start.
Instead of using the CRD_F_ENCRYPT flag to determine the direction
of the operation, cryptop now includes an 'op' field defining the
operation to perform. For digests I've added a new VERIFY digest
mode which assumes a digest is present in the input and fails the
request with EBADMSG if it doesn't match the internally-computed
digest. GCM and CCM already assumed this, and the new AEAD mode
requires this for decryption. The new ETA mode now also requires
this for decryption, so IPsec and GELI no longer do their own
authentication verification. Simple DIGEST operations can also do
this, though there are no in-tree consumers.
To eventually support some refcounting to close races, the session
cookie is now passed to crypto_getop() and clients should no longer
set crp_sesssion directly.
- Assymteric crypto operation structures should be allocated via
crypto_getkreq() and freed via crypto_freekreq(). This permits the
crypto layer to track open asym requests and close races with a
driver trying to unregister while asym requests are in flight.
- crypto_copyback, crypto_copydata, crypto_apply, and
crypto_contiguous_subsegment now accept the 'crp' object as the
first parameter instead of individual members. This makes it easier
to deal with different buffer types in the future as well as
separate input and output buffers. It's also simpler for driver
writers to use.
- bus_dmamap_load_crp() loads a DMA mapping for a crypto buffer.
This understands the various types of buffers so that drivers that
use DMA do not have to be aware of different buffer types.
- Helper routines now exist to build an auth context for HMAC IPAD
and OPAD. This reduces some duplicated work among drivers.
- Key buffers are now treated as const throughout the framework and in
device drivers. However, session key buffers provided when a session
is created are expected to remain alive for the duration of the
session.
- GCM and CCM sessions now only specify a cipher algorithm and a cipher
key. The redundant auth information is not needed or used.
- For cryptosoft, split up the code a bit such that the 'process'
callback now invokes a function pointer in the session. This
function pointer is set based on the mode (in effect) though it
simplifies a few edge cases that would otherwise be in the switch in
'process'.
It does split up GCM vs CCM which I think is more readable even if there
is some duplication.
- I changed /dev/crypto to support GMAC requests using CRYPTO_AES_NIST_GMAC
as an auth algorithm and updated cryptocheck to work with it.
- Combined cipher and auth sessions via /dev/crypto now always use ETA
mode. The COP_F_CIPHER_FIRST flag is now a no-op that is ignored.
This was actually documented as being true in crypto(4) before, but
the code had not implemented this before I added the CIPHER_FIRST
flag.
- I have not yet updated /dev/crypto to be aware of explicit modes for
sessions. I will probably do that at some point in the future as well
as teach it about IV/nonce and tag lengths for AEAD so we can support
all of the NIST KAT tests for GCM and CCM.
- I've split up the exising crypto.9 manpage into several pages
of which many are written from scratch.
- I have converted all drivers and consumers in the tree and verified
that they compile, but I have not tested all of them. I have tested
the following drivers:
- cryptosoft
- aesni (AES only)
- blake2
- ccr
and the following consumers:
- cryptodev
- IPsec
- ktls_ocf
- GELI (lightly)
I have not tested the following:
- ccp
- aesni with sha
- hifn
- kgssapi_krb5
- ubsec
- padlock
- safe
- armv8_crypto (aarch64)
- glxsb (i386)
- sec (ppc)
- cesa (armv7)
- cryptocteon (mips64)
- nlmsec (mips64)
Discussed with: cem
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D23677
- make sure volume controls are correctly mapped to "pcm" and "rec" depending
on how they deliver audio to the USB host.
- make sure there are no duplicate record selections.
- remove internal only mixer class type.
- don't add software volume controls for recording only.
- some minor mixer code cleanup.
Tested by: Horse Ma <Shichun.Ma@dell.com>
MFC after: 1 week
Sponsored by: Mellanox Technologies
This change fixes a couple of issues with OPAL IPMI driver and
implements a mechanism to detect timeouts and discard old messages left
in receive queue, to avoid old messages from being confused with the
reply of new ones.
Reviewed by: jhibbits
Sponsored by: Eldorado Research Institute (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D24185
Reverts r293369. The macro was orginally correct, since our SMBus
framework, unlike i2c, already requires addresses to be 8-bit, LSB-cleared.
MFC after: 3 days
Sponsored by: Juniper Networks, Inc
Previously they included sys/dev/cx/machdep.h, but the cx driver was
retired in r359178. These drivers haven't had real development for
a decade or more so there's no real benefit in sharing this file; just
copy it to the ce and cp subdirs.
The devices supported by these drivers are obsolete ISA cards, and the
sync serial protocols they supported are essentially obsolete too.
Sponsored by: The FreeBSD Foundation
This reduces the lines bouncing around between the driver rx ithread and
the netmap rxsync thread. There is no net change in the size of the
struct (it continues to waste a lot of space).
This kind of split was originally proposed in D17869 by Marc De La
Gueronniere @ Verisign, Inc.
MFC after: 1 week
Sponsored by: Chelsio Communications
The warning used to be displayed for valid VPDs about 512B or above in
size. Fix the size check and add a break while here so that the routine
stops if if detects any problem.
Tested with "pciconf -lV"
Reviewed by: kib@, jhb@
MFC after: 1 week
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D23679
When vmx(4) was converted to an iflib driver in r343291, the
power-of-2 queue count constraint was removed as it appeared that
current implementations of the VMXNET3 virtual device no longer
required that constraint. It turns out that some of the
implementations still do, and on such systems, the device will fail to
initialize when configured with a non-power-of-2 RX or TX queue count.
PR: 237321
Reported by: ncrogers@gmail.com
MFC after: 1 week
Skip device mode switch step on Fountain-based devices as they don't
support RAW_SENSOR_MODE command, so failing to attach.
This was reproduced on PowerBook G4 (model PowerBook5,6) equipped with
product ID 0x020e
Reviewed by: hselasky
Approved by: jhibbits (mentor)
Differential Revision: https://reviews.freebsd.org/D24005
