Make it compile only for i386/amd64 for now as it's been tested there.
It's quite possible it'll show up elsewhere and we can enable it
for other architectures later.
Tested:
* PC Engines APU1C4
Submitted by: Daniel Wyatt <daniel@dewyatt.com>
Reviewed by: adrian, loos
Differential Revision: https://reviews.freebsd.org/D5389
It turns out that these will clash very annoyingly with the linux
macros in the linuxkpi layer, so let the wookie^Wlinux win.
The only user that I can find is ath(4), so fix it there too.
Import portions of the PowerPC OF PCI implementation into new file
"ofwpci.c", common for other platforms. The files ofw_pci.c and ofw_pci.h
from sys/powerpc/ofw no longer exist. All required declarations are moved
to sys/dev/ofw/ofwpci.h. This creates a new ofw_pci_write_ivar() function
and modifies some others methods. Most functions contain existing ppc
implementations in the majority unchanged. Now there is no need to have
multiple identical copies of methods for various architectures.
Requested by: jhibbits
Reviewed by: jhibbits, marius
Submitted by: Marcin Mazurek <mma@semihalf.com>
Obtained from: Semihalf
Sponsored by: Annapurna Labs
Differential Revision: https://reviews.freebsd.org/D4879
- Do not mark CSUM_IP_CHECKED and CSUM_IP_VALID on IPv6 packets.
IPv6 does not have checksums by definition.
- Set SCTP packets csum_flags CSUM_SCTP_VALID instead of
CSUM_DATA_VALID and skip csum_data
- Set csum_data simply as 0xffff without byteswap
Pointed out by: yongari
Reviewed by: yongari, wma
Obtained from: Semihalf
Sponsored by: Cavium
Differential Revision: https://reviews.freebsd.org/D5537
It is not necessary as entries are being manipulated under lock.
Reviewed by: wma
Obtained from: Semihalf
Sponsored by: Cavium
Differential Revision: https://reviews.freebsd.org/D5536
This is a no-op currently, but in kernels with earlier AP startup, the
random kthread was trying to use timeouts with sleeps before timers are
working. Wait until SI_SUB_KICK_SCHEDULER to start the random kproc.
Reviewed by: delphij, imp, markm
Approved by: so
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D5712
The graphic mode is noticeably slow on hypervisors, especially
on Hyper-V (1 second to each line).
Submitted by: Dexuan Cui <decui microsoft com>
Reviewed by: kib, sephe, royger (early loader version)
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5739
m_unshare passes on the source mbuf's flags as-is to m_getcl and this
results in a leak if the flags include M_NOFREE. The fix is to clear
the bits not listed in M_COPYALL before calling m_getcl. M_RDONLY
should probably be filtered out too but that's outside the scope of this
fix.
Add assertions in the zone_mbuf and zone_pack ctors to catch similar
bugs.
Update netmap_get_mbuf to not pass M_NOFREE to m_getcl. It's not clear
what the original code was trying to do but it's likely incorrect.
Updated code is no different functionally but it avoids the newly added
assertions.
Reviewed by: gnn@
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D5698
- in atags
- in DT blob (by using 'fdt chosen' U-Boot command)
The command line must start with guard's string 'FreeBSD:' and can contain
list of comma separated kenv strings. Also, boot modifier strings from
boot.h are recognised and parsed into boothowto.
The command line must be passed from U-Boot by setting of bootargs variable:
'setenv bootargs FreeBSD:boot_single=1,vfs.root.mountfrom=ufs:/dev/ada0s1a'
followed by 'fdt chosen' (only for DT based boot)
pagers fault routines always return with a result page, be it the
proper and valid result page, or initially passed freshly allocated
placeholder. Do not free the passed in page until we are able to
provide the replacement, and do not assign NULL to *mres.
Reported and tested by: dumbbell
Reviewed by: royger (who also verified that Xen code is safe)
Sponsored by: The FreeBSD Foundation
Using one taskqueue does not work, since the EOM MSR must be written
on the msg's owner CPU.
Noticed by: Jun Su <junsu microsoft com>
Discussed with: Jun Su <junsu microsoft com>, Dexuan Cui <decui microsoft com>
MFC after: 1 week
Sponsored by: Microsoft OSTC
Most often, hv_vmbus_post_message() doesn't fail. However, it fails
intermittently when GPADLs of large shared memory is to be established
with the host, e.g. on the hn(4) attach path: a GPADL of 15MB sendbuf
is created, for which lots of messages will be flooded to the host.
The host side tries to throttle the message rate by returning
HV_STATUS_INSUFFICIENT_BUFFERS.
Before this commit, we do several retries for failed messages, but the
delay between each retry is pretty/too low, which will cause sporadic
message posting failure. We now use large delay (>=1ms) between each
retry to fix the message posting failure.
Submitted by: Dexuan Cui <decui microsoft com>
Reviewed by: sephe
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5715
- Use a different device description for fixed and fixed factor clocks.
- Fix a bug where the "clock-div" property was stored in the "mult" field
of the clock definition.
- Get the fixed factor parent clock by index instead of by name, as a
clock-names property is not required to be present here.
Reviewed by: mmel, adrian (mentor)
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D5703
clock-indices property is present, so change the "uint32_t *indices" parameter
to "uint32_t **indices" to allow this.
Reviewed by: mmel, adrian (mentor)
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D5702
platform specific drivers a chance to override the generic driver.
Reviewed by: mmel, adrian (mentor)
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D5701
Skip the log entry as there is nothing good to write out. Don't fail
the syscall though since it already succeeded. There's no reason
filemon's tracing failure should fail the already-succeeded syscall.
Record the error for later to return from close(2) on the filemon devfs
file descriptor.
Discussed with: markj, sjg, kib (briefly with kib)
Reported by: mjg
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
If the tracer has decided to the close the log then it should be fully
written, not getting more entries, when close(2) returns. This was
a regression in r297156 in that it allowed a traced process to continue
a traced syscall and add more entries to the log while the tracer had
already closed its fd or exited. This was only really part of the
daemonized process case which is abnormal.
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
This mainly used to improve ACK timeliness when multiple RX rings
are enabled.
This value gives the best performance in both Azure and Hyper-V
environment, w/ both 10Ge and 40Ge using non-{INVARIANTS,WITNESS}
kernel.
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5691
Set watchdog timer parameters only when they really need to be changed.
In other cases just restart the timer with single Reset command instead
of two (Set and Reset).
From one side this visually reduces amount of CPU time burned in tight
loop waiting while some slow BMC configures its watchdog hardware, that
seems to be much more complicated task then just resetting the timer.
From another side on some BMCs those slow Set commands sometimes tend to
timeout, that leads to noisy log messages and even more CPU time burned,
so avoiding them can provide even bigger bonuses.
MFC after: 2 weeks
Submitted by: Jun Su <junsu microsoft com>
Reviewed by: Dexuan Cui <decui microsoft com>, sephe
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5215
This gets rid of the per-cpu SWIs.
Submitted by: Jun Su <junsu microsoft com>
Reviewed by: Dexuan Cui <decui microsoft com>, sephe
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5215
Using the same message slot as the other types of the messages has
the side effect that the event timer message could be deferred to
the swi threads to run (lacking of trapframe and the original code
didn't even handle that, so the event timer was actually broken).
As of this commit we use an independent message slot for event timer,
so that we could handle all of event timer messages in the interrupt
handler directly. Note, the message slot for event timer is still
bind to the same interrupt vector as the other types of messages.
Submitted by: Jun Su <junsu microsoft com>
Reviewed by: sephe
Discussed with: Jun Su <junsu microsoft com>, Dexuan Cui <decui microsoft com>
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5696
This is a pretty good reference for teaching an almost-11n-capable
driver about 11n.
It enables HT20 operation, A-MPDU/A-MSDU RX, but no aggregate support
for transmit. That'll come later. This means that receive throughput
should be higher, but transmit throughput won't have changed much.
* Disable bgscan - for now, bgscan will interfere with AMPDU TX/RX,
so until we correctly handle it in software driven scans, disable.
* Add null 11n methods for channel width / ampdu_enable.
the firmware can apparently handle ampdu tx (and hopefully block-ack
handling and retransmission) so I'll go review the linux code and
figure it out.
* Set the number of tx/rx streams. I /hope/ that nchains == nstreams
here.
* Add 11n channels in the call to ieee80211_init_channels().
* Don't enable HT40 for now - I'll have to verify the channel set command
and tidy it up a bit first.
* Teach the RX path about M_AMPDU for 11n nodes. Kinda wonder why
we aren't just doing this in net80211 already, this is the fourth
driver I've had to do this to.
* Teach rate2ridx() about MCS rates and what hardware rates to use.
* Teach the urtwn_tx_data() routine about MCS/11ng transmission.
It doesn't know about short-gi and 40MHz modes yet; that'll come
later.
* For 8192CU firmware, teach the rate table code about MCS rates.
* Ensure that the fixed rate transmit sets the right transmit flag
so the firmware obeys the driver transmit path.
* Set the default transmit rate to MCS4 if no rate control is available.
* Add HT protection (RTS-CTS exchange) support.
* Add appropriate XXX TODO entries.
TODO:
* 40MHz, short-gi, etc - channel tuning, TX, RX;
* teach urtwn_tx_raw() about (more) 11n stuff;
* A-MPDU TX would be nice!
Thanks to Andriy (avos@) for reviewing the code and testing it on IRC.
Tested:
* RTL8188EU - STA (me)
* RTL8192CU - STA (me)
* RTL8188EU - hostap (avos)
* RTL8192CU - STA (avos)
Reviewed by: avos
- Replace sc_reinittask() by ieee80211_restart_all() (mostly the same).
- Revert r282377 (seems to be unneeded now).
Tested with Intel 3945BG, STA mode.
Differential Revision: https://reviews.freebsd.org/D5056
