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Date: Mon, 22 Feb 2021 20:36:58 +0800
From: Hao Chen <chenhaoa@...ontech.com>
To: Pkshih <pkshih@...ltek.com>,
"kvalo@...eaurora.org" <kvalo@...eaurora.org>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"tony0620emma@...il.com" <tony0620emma@...il.com>,
Timlee <timlee@...ltek.com>, "kuba@...nel.org" <kuba@...nel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"davem@...emloft.net" <davem@...emloft.net>,
"arnd@...db.de" <arnd@...db.de>,
"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
zhanjun@...ontech.com
Subject: Re: [PATCH] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR
laptop
Hi:
I have tried setting module parameter disable_aspm=1, but it's not useful.
>The cpu info is follow:
uos@...-PC:~$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 48 bits physical, 48 bits virtual
CPU(s): 6
On-line CPU(s) list: 0-5
Thread(s) per core: 1
Core(s) per socket: 6
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 23
Model: 96
Model name: AMD Ryzen 5 4500U with Radeon Graphics
Stepping: 1
CPU MHz: 2375.000
CPU max MHz: 2375.0000
CPU min MHz: 1400.0000
BogoMIPS: 4740.81
Virtualization: AMD-V
L1d cache: 32K
L1i cache: 32K
L2 cache: 512K
L3 cache: 4096K
NUMA node0 CPU(s): 0-5
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext
fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid
extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1
sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm
extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit
wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb
cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1
avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt
xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local
clzero irperf xsaveerptr rdpru wbnoinvd arat npt lbrv svm_lock nrip_save
tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
avic v_vmsave_vmload vgif umip rdpid overflow_recov succor smca
>The pci bridge info is follow:
uos@...-PC:~$ sudo lspci -vvv -s 00:01.0
00:01.0 PCI bridge: Intel Corporation 6th-9th Gen Core Processor PCIe
Controller (x16) (rev 05) (prog-if 00 [Normal decode])
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 121
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: a0200000-a02fffff
Prefetchable memory behind bridge:
00000000b0000000-00000000bfffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [88] Subsystem: ASRock Incorporation Xeon E3-1200
v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16)
Capabilities: [80] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee00258 Data: 0000
Capabilities: [a0] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0
ExtTag- RBE+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 256 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
AuxPwr- TransPend-
LnkCap: Port #2, Speed 8GT/s, Width x16, ASPM L0s L1,
Exit Latency L0s <256ns, L1 <8us
ClockPM- Surprise- LLActRep- BwNot+ ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x8, TrErr- Train- SlotClk+
DLActive- BWMgmt+ ABWMgmt+
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
HotPlug- Surprise-
Slot #1, PowerLimit 75.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown,
Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Not Supported,
TimeoutDis-, LTR+, OBFF Via WAKE# ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-,
LTR+, OBFF Via WAKE# ARIFwd-
LnkCtl2: Target Link Speed: 8GT/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] 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: [140 v1] Root Complex Link
Desc: PortNumber=02 ComponentID=01 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=01
AssocRCRB- LinkType=MemMapped LinkValid+
Addr: 00000000fed19000
Capabilities: [d94 v1] #19
Kernel driver in use: pcieport
在 2021/2/22 下午7:20, Pkshih 写道:
> On Mon, 2021-02-22 at 09:27 +0200, Kalle Valo wrote:
>> 陈浩 <chenhaoa@...ontech.com> writes:
>>
>>> By git blame command, I know that the assignment of .driver.pm =
>>> RTW_PM_OPS
>>>
>>> was in commit 44bc17f7f5b3b("rtw88: support wowlan feature for
>>> 8822c"),
>>>
>>> and another commit 7dc7c41607d19("avoid unused function warnings")
>>>
>>> pointed out rtw_pci_resume() and rtw_pci_suspend() are not used at
>>> all.
>>>
>>> So I think it's safe to remove them.
>>>
> I think ".driver.pm = &rtw_pm_ops" is a switch to enable wowlan feature.
> That means that wowlan doesn't work without this declaration.
>
>>> Currently, I find that the rtl8822ce wifi chip and the pci bridge of
>>> it are not linked by pci
>>>
>>> after wake up by `lspci` command.
>>>
>>> when I set `pcie_aspm.policy=performance ` in the GRUB. The machine
>>> sleep and
>>>
>>> wake up normal.So I think when this ops is assignmented,the sleep and
>>> wake up procedure
>>>
>>> may cause pci device not linked.
> Please try setting module parameter disable_aspm=1 with pci.ko.
>
> Could I know what the CPU and pci bridge chipset are used by HONOR laptop?
>
>> Please don't use HTML, our lists automatically drop all HTML email.
>>
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