- Increase Rx buffer size from MCLBYTES to MJUMPAGESIZE.
- Provide an additional defragmentation routine for frames larger
than MCLBYTES; that is required by A-MSDU / Atheros Fast-Frames
support to work with current Tx path implementation.
Enabled features list for RTL8188CE:
- Atheros Fast-Frames;
- A-MPDU (Tx / Rx);
- A-MSDU (Tx / Rx; 4k only);
- Short Guard Interval.
Tested with:
- RTL8188CE (STA+AP) + RTL8821AU (STA).
- RTL8188CE (STA) + RTL8188CUS (AP).
Relnotes: yes
- Attach only to WMI devices that provide supported GUIDs. HP Spectre x360
has two WMI devices, only one of which provides the GUIDs.
- Pass proper device to ACPI_WMI_REMOVE_EVENT_HANDLER() on detach.
- Improve error WMI handling separating status and data paths. This allows
to hide sysctls not supported by specific hardware/BIOS.
- Improve CMI block parser to make it work on HP Spectre x360 laptop.
- In verbose mode log all unknown events to help futher improvements.
In the case where a hardware error is detected during
ioat_process_events, hardware may advance (by one descriptor, probably)
and a subsequent ioat_process_events may race the intended ioat_reset_hw
followup. In that case, the second process_events would observe a
completion update that does not match the software "last_seen" status,
and attempt to successfully complete already-failed descriptors.
Guard against this race with the resetting_cleanup flag.
Reviewed by: bdrewery, markj
Sponsored by: Dell EMC Isilon
Newer CPUs (SkyLakes) have updates of 100K size, which is bigger than
current limit 32K. Increase it to 4M but leave the check around to
prevent kernel memory allocator abuse. Some time ago, the memory for
update was allocated by contigmalloc(9), and it was reasonable to be
conservative as much as possible. Since all uses of contigmalloc(9)
appear to be either misunderstanding or too cautious, and were
removed, provide more slack than strictly neccessary.
Submitted by: Oliver Pinter
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D8486
The constant was set to the correct value in r308242.
While there, fix iicsmb_bread() to not use a value of an out parameter
'count'.
MFC after: 3 weeks
X-MFC after: r308242
The hardware does not implement SMBus Process Call command, so remove
ifdef-ed out code from intsmb_pcall. The code used exactly the same
start sequence as for Write Word command.
intsmb_bread code used to access an in value of the count parameter,
but that parameter is supposed to be an out only parameter.
For example, smb(4) does not initialize it before calling smbus_bread.
MFC after: 3 weeks
Previously, those ioctls were defined as 'in' only, so rdata.byte and
rdata.word were never updated in the userland. The read data went only
to rbuf if it was provided. Thus, consumers were forced to always use it.
Now the ioctls are marked as in-out.
Compatibility handlers are provided for old ioctls.
PR: 213481
Reported by: Lewis Donzis <lew@perftech.com>
MFC after: 2 weeks
Relnotes: maybe
Differential Revision: https://reviews.freebsd.org/D8430
I see the fllowing panic on AMD when exiting pmcstat:
panic: [pmc,1473] pp_pmcval outside of expected range cpu=2 ri=17
pp_pmcval=fffffffffa529f5b pm_reloadcount=10000
It seems that at least on AMD a performance counter keeps counting after
overflowing. When pmcstat exits it sets counters that it used to
PMC_STATE_DELETED and waits until their use count goes to zero.
amd_intr() wouldn't reload a counter in that state and, thus, a counter
would be allowed to overflow. That means that the counter's value would
be allowed to go outside the expected range.
MFC after: 2 weeks
The expected deviation should not be more than 1Hz per second. The USB
v2.0 specification also mandates this requirement. Refer to chapter
5.12.4.2 about feedback.
PR: 208791
MFC after: 3 days
address, but the associated PF is giving the VF an all zeros MAC address
when one is not administratively assigned. The driver should check for
this case and generate a random address, similar to how the linux igbvf
driver does.
Submitted by: skoumjian@juniper.net (Scott Koumjian)
MFH: 2 weeks
Differential Revision: https://reviews.freebsd.org/D8399
- Split driver in two parts: FDT and non-FDT
- Instead of reattach gpioled nodes to GPIO bus use
gpio_pin_get_by_ofw_idx and add ofwbus and simplebus as parrent buses
Reviewed by: loos
Differential Revision: https://reviews.freebsd.org/D8233
The firmware/hardware does not generate additional completion
events unless we post new buffers. Use a timer to try to post
more buffers in case we are temporarily out of mbufs. Else
the receive schedule completely stops.
Sponsored by: Mellanox Technologies
MFC after: 1 week
NOTE: some multi-vap configurations (e.g., STA+IBSS) are not stable;
that will be fixed later.
Tested with:
- RTL8188CE, STA + AP mode;
- RTL8188CE, IBSS mode;
- RTL8188CUS, IBSS mode;
- RTL8188EU, IBSS mode.
Relnotes: yes
rtwn_usb: drain USB transfers during device shutdown; this fixes possible
panic with 'options IEEE80211_SUPPORT_SUPERG' during device detach.
Tested with RTL8188CE, STA mode.
Do not try to clear stale Tx descriptor entries when there are some
running vaps; just free node references - rtwn_pci_tx_done() will free
mbufs without creating holes in the Tx descriptor space.
Also, reset only 2 first entries in the beacon ring - other will not be
used anyway.
Tested with RTL8188CE, STA + STA mode.
- Correctly refresh Rx filter when AP (IBSS) vap is created after STA vap.
- Block any RCR updates during TSF correction (IBSS mode).
- Set CBSSID* bits during vap creation, not when it was started / stopped.
- Cache current state to prevent unnecessary register reads.
Tested with RTL8188CE, STA + AP mode.
adapter to work around bugs in TSO handling at this speed.
em_init_locked is called during first boot of the adapter and will
see that link_speed is unitialized, effectively turning off tso for
all cards at all speeds, which I believe was *not* the intent.
Move the handling of TSO deactivation to the link handler where we can
more effectively make the decision about what to do. In addition,
completely purge the TSO capabilities instead of disabling just CSUM_TSO.
Thanks to jhb for explanation of the hw capabilites api.
Thanks to royger and cognet for testing the 100Mbit failure case to
ensure that their adapters do indeed still work.
MFC after: 1 week
Sponsored by: Limelight Networks
Bay Trail has three banks of GPIOs exposed to userland as /dev/gpiocN,
where N is 1, 2, and 3. Pins in each bank are pre-named to match names
on boards schematics: GPIO_S0_SCnn, GPIO_S0_NCnn, and GPIO_S5_nn.
Controller supports edge-triggered and level-triggered interrupts but
current version of the driver does not have interrupts support
This is a long time coming. The general pieces have been floating around
in a local repo since circa 2012 when I dropped the net80211 support
into the tree.
This allows the per-chain RSSI and NF to show up in 'ifconfig wlanX list sta'.
I haven't yet implemented the EVM hookups so that'll show up; that'll come
later.
Thanks to Susie Hellings <susie@susie.id.au> who did the original work
on this a looong time ago for a company we both worked at.
This change reverts most of r281985.
The method did not map to anything defined by SMBus protocol and could
not be implemented for SMBus controllers.
This change is obviously not backwards compatible, but I have good
reasons to believe that there have never been any users of SMB_TRANS.
Discussed with: grembo, jhb
MFC after: 6 weeks
To enable event sourcing from atkbd kern.evdev.rcpt_mask value
should have bit 3 set.
Submitted by: Vladimir Kondratiev <wulf@cicgroup.ru>
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D8381
The device doesn't accurately update the CHANCMP address with the device state
when the device is suspended or halted. So, read the CHANSTS register to check
for those states.
We still need to read the CHANCMP address for the last completed descriptor.
Sponsored by: Dell EMC Isilon
