Just to rule out the case of bad compatibility between the STA on the
router (Quantenna QSR1000 chipset, QT3840BC SoC in case of my RT-87U)
and the client WNIC I also checked with a different STA.
So the second router's 802.11ac hardware is Compex_WLE900VX Qualcomm
Atheros QCA9880 (V2) which uses ath10k driver as well. Therefore, I've
tested laptop's ath10k on 4.10 with router's ath10k on 4.4 kernel:
root@turris:~# uname -r
4.4.39-80079e1c1e5f9ca7ad734044462a761a-4
root@turris:~# lspci -vvv
02:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac Wireless
Network Adapter
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+
Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 120
Region 0: Memory at e0200000 (64-bit, non-prefetchable) [size=2M]
Expansion ROM at e0400000 [disabled] [size=64K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/8 Maskable+ 64bit-
Address: f1020a04 Data: 0f10
Masking: 00fe00fe Pending: 00000000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s
unlimited, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s <4us, L1 <64us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-,
OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: ath10k_pci
root@turris:~# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.1.1 port 5001 connected with 192.168.1.149 port 45706
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 27.4 MBytes 22.9 Mbits/sec
The result is the same so it is definitely not a router/compatibility
issue.
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https://bugs.launchpad.net/bugs/1670041
Title:
Poor performance of Atheros QCA6174 802.11ac (rev 32) (Killer Wireless
1535)
Status in linux package in Ubuntu:
Confirmed
Bug description:
I experience a very poor 802.11ac performance of a QCA6174 Wireless
card (Killer Wireless 1535).
This is a dev version of Zesty with a recently released 4.10 kernel:
uname -r
4.10.0-9-generic
dpkg -l linux-firmware | grep ii
ii linux-firmware 1.163 all Firmware for Linux kernel drivers
lspci -vvv:
...
3b:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless
Network Adapter (rev 32)
Subsystem: Bigfoot Networks, Inc. QCA6174 802.11ac Wireless Network
Adapter
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 334
Region 0: Memory at dd200000 (64-bit, non-prefetchable) [size=2M]
Capabilities: <access denied>
Kernel driver in use: ath10k_pci
Kernel modules: ath10k_pci
-----------------------------------------
Testing wireless speed with RT-87U 802.11ac router shows that the
speed is only 27.3 megabits per second which is very low for an
802.11ac card:
iperf -c rtr
------------------------------------------------------------
Client connecting to rtr, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.10.10.78 port 48930 connected with 10.10.10.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 32.6 MBytes 27.3 Mbits/sec
------------------------------------
For comparison, on the same network (from the same distance to the
router) I have the following result with an Intel's card (on a 4.8
kernel, different laptop):
UX32LN:~$ lspci | grep 7260
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev bb)
UX32LN:~$ iperf -c rtr
------------------------------------------------------------
Client connecting to rtr, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.10.10.208 port 37196 connected with 10.10.10.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 237 MBytes 198 Mbits/sec
administrator@UX32LN:~$ lsp
lspci lspcmcia lspgpot
200 Mbps is much better.
-----------------------------------
Back to the problematic card:
Booted 16.04.2 with the rolling HWE kernel 4.8:
journalctl -k | grep -i ath
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: enabling device (0000
-> 0002)
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: pci irq msi
oper_irq_mode 2 irq_mode 0 reset_mode 0
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: Direct firmware load
for ath10k/pre-cal-pci-0000:3b:00.0.bin failed with error -2
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: Direct firmware load
for ath10k/cal-pci-0000:3b:00.0.bin failed with error -2
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: Direct firmware load
for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: could not fetch
firmware file 'ath10k/QCA6174/hw3.0/firmware-5.bin': -2
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: qca6174 hw3.2 target
0x05030000 chip_id 0x00340aff sub 1a56:1535
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: kconfig debug 0
debugfs 1 tracing 1 dfs 0 testmode 0
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: firmware ver
WLAN.RM.2.0-00180-QCARMSWPZ-1 api 4 features wowlan,ignore-otp,no-4addr-pad
crc32 75dee6c5
Mar 04 18:28:31 ubuntu kernel: ath10k_pci 0000:3b:00.0: board_file api 2
bmi_id N/A crc32 6fc88fe7
Mar 04 18:28:34 ubuntu kernel: ath10k_pci 0000:3b:00.0: htt-ver 3.26 wmi-op 4
htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
Mar 04 18:28:34 ubuntu kernel: ath: EEPROM regdomain: 0x6c
Mar 04 18:28:34 ubuntu kernel: ath: EEPROM indicates we should expect a
direct regpair map
Mar 04 18:28:34 ubuntu kernel: ath: Country alpha2 being used: 00
Mar 04 18:28:34 ubuntu kernel: ath: Regpair used: 0x6c
Mar 04 18:28:34 ubuntu kernel: ath10k_pci 0000:3b:00.0 wlp59s0: renamed from
wlan0
iperf -c 10.10.10.1
------------------------------------------------------------
Client connecting to 10.10.10.1, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.10.10.78 port 43786 connected with 10.10.10.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 43.0 MBytes 36.0 Mbits/sec
--------------------------------
Booted on 4.4 General Availability kernel - the card did not work at
all:
Mar 04 18:51:54 ubuntu kernel: ath10k_pci 0000:3b:00.0: failed to enable
dynamic BW: -11
Mar 04 18:52:00 ubuntu kernel: ath10k_pci 0000:3b:00.0: could not suspend
target (-11)
--------------------------------
The card's product name is Killer Wireless-AC 1535:
http://www.killernetworking.com/products/killer-wireless-ac-1535
The card vendor refers to linux-firmware 1.163:
http://www.killernetworking.com/driver-downloads/knowledge-base?view=topic&id=2
---------------------------------
I tend to blame Atheros firmware so I've tried whatever kvalo has in
the ath10k-firmware
https://github.com/kvalo/ath10k-firmware
sudo rmmod ath10k_pci ath10k_core ath mac80211 cfg80211
# this gets rid of some of the kernel warnings about firmware but the
performance remains low
sudo cp ath10k-
firmware/QCA6174/hw3.0/firmware-4.bin_WLAN.RM.2.0-00180-QCARMSWPZ-1
/lib/firmware/ath10k/QCA6174/hw3.0/firmware-5.bin
sudo cp ath10k-firmware/QCA6174/hw3.0/board-2.bin
/lib/firmware/ath10k/QCA6174/hw3.0/board-2.bin
sudo modprobe -a ath10k_pci ath10k_core ath mac80211 cfg80211
----------------------------------
Tried both 5.0 GHz and 2.4 GHz modes - got similar results.
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-image-4.10.0-9-generic 4.10.0-9.11
ProcVersionSignature: Ubuntu 4.10.0-9.11-generic 4.10.0
Uname: Linux 4.10.0-9-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: dima 3458 F.... pulseaudio
/dev/snd/controlC1: dima 3458 F.... pulseaudio
CurrentDesktop: Unity:Unity7
Date: Sat Mar 4 22:03:00 2017
InstallationDate: Installed on 2017-02-27 (5 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Alpha amd64 (20170227)
MachineType: Razer Blade
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-9-generic.efi.signed
root=UUID=3f515c94-cd91-48b4-80f6-84ec24cb7b8f ro rootflags=subvol=@ quiet
button.lid_init_state=open pcie_aspm=off
RelatedPackageVersions:
linux-restricted-modules-4.10.0-9-generic N/A
linux-backports-modules-4.10.0-9-generic N/A
linux-firmware 1.163
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/10/2017
dmi.bios.vendor: Razer
dmi.bios.version: 1.00
dmi.board.name: Razer
dmi.board.vendor: Razer
dmi.chassis.type: 9
dmi.chassis.vendor: Razer
dmi.modalias:
dmi:bvnRazer:bvr1.00:bd01/10/2017:svnRazer:pnBlade:pvr6.06:rvnRazer:rnRazer:rvr:cvnRazer:ct9:cvr:
dmi.product.name: Blade
dmi.product.version: 6.06
dmi.sys.vendor: Razer
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