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Message-ID: <47209C0C.5010505@sgi.com> (sfid-20071025_143743_052456_74F0E98D)
Date: Thu, 25 Oct 2007 15:37:16 +0200
From: Jes Sorensen <jes@sgi.com>
MIME-Version: 1.0
To: yi.zhu@intel.com
Cc: linux-wireless@vger.kernel.org,
	Tomas Winkler <tomas.winkler@intel.com>,
	"John W. Linville" <linville@tuxdriver.com>
Subject: iwl4965 detection problem
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Sender: linux-wireless-owner@vger.kernel.org
List-ID: <linux-wireless.vger.kernel.org>

Hi,

I just got my hands on a new Toshiba Portege R500 laptop, which comes
with the Intel 4965 chip in it. After installing the latest Fedora Core
8 test 3 on it, and updating the kernel I am still seeing a problem with
detection of the 4965 in my laptop.

Fedora Core 8 test 3 is based on a 2.6.23.1 kernel.

Basically on the first load of the iwl4965 module no interface is
detected, but if I rmmod and modprobe it again, it shows up and works
just fine.

I haven't yet tried the latest kernel.org tree on this box, but looking
through the git log, I don't see any commits that look like they were
addressing this problem.

Is this a problem you have heard about before? Anything information I
can provide to help?

I have attached the lspci -vv entry for this device, as well as the
dmesg output.

Cheers,
Jes

02:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or 
AGN Network Connection (rev 61)
	Subsystem: Intel Corporation Unknown device 1101
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR-
	Latency: 0, Cache Line Size: 32 bytes
	Interrupt: pin A routed to IRQ 2300
	Region 0: Memory at ff8fe000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: [c8] Power Management version 3
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 
Enable+
		Address: 00000000fee0300c  Data: 41a9
	Capabilities: [e0] Express Endpoint IRQ 0
		Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
		Device: Latency L0s <512ns, L1 unlimited
		Device: AtnBtn- AtnInd- PwrInd-
		Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
		Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
		Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
		Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s L1, Port 0
		Link: Latency L0s <128ns, L1 <64us
		Link: ASPM L0s Enabled RCB 64 bytes CommClk+ ExtSynch-
		Link: Speed 2.5Gb/s, Width x1

dmesg output:

First time it's loaded:

firewire_ohci: Added fw-ohci device 0000:03:0b.1, OHCI version 1.10
sdhci: SDHCI controller found at 0000:03:0b.3 [104c:803c] (rev 0)
PCI: Enabling device 0000:03:0b.3 (0000 -> 0002)
ACPI: PCI Interrupt 0000:03:0b.3[D] -> GSI 23 (level, low) -> IRQ 23
mmc0: SDHCI at 0x90005800 irq 23 DMA
iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17kds
iwl4965: Copyright(c) 2003-2007 Intel Corporation
ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 18 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:02:00.0 to 64
iwl4965: Detected Intel Wireless WiFi Link 4965AGN
tpm_inf_pnp 00:0a: Found TPM with ID IFX0102
tpm_inf_pnp 00:0a: TPM found: config base 0x4e, data base 0x680, chip 
version 0x000b, vendor id 0x15d1 (Infineon), product id 0x000b (SLB 9635 
TT 1.2)
intel_rng: FWH not detected
.......
rmmod+modprobe'ing it again:

[drm] Initialized drm 1.1.0 20060810
[drm] Initialized i915 1.6.0 20060119 on minor 0
ACPI: PCI interrupt for device 0000:02:00.0 disabled
iwl4965: Intel(R) Wireless WiFi Link 4965AGN driver for Linux, 1.1.17kds
iwl4965: Copyright(c) 2003-2007 Intel Corporation
ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 18 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:02:00.0 to 64
iwl4965: Detected Intel Wireless WiFi Link 4965AGN
iwl4965: Tunable channels: 13 802.11bg, 19 802.11a channels
phy1: Selected rate control algorithm 'iwl-4965-rs'