Faulty 14e4:4315 (BCM4312)?

[Rafał Miłecki]

W dniu 9 czerwca 2011 01:30 użytkownik Larry Finger
<Larry.Finger at lwfinger.net> napisał:
> On 06/08/2011 06:14 PM, Rafał Miłecki wrote:
>>
>> W dniu 9 czerwca 2011 01:05 użytkownik Larry Finger
>> <Larry.Finger at lwfinger.net>  napisał:
>>>
>>> On 06/08/2011 05:55 PM, Rafał Miłecki wrote:
>>>>
>>>> W dniu 8 czerwca 2011 23:19 użytkownik Rafał Miłecki<zajec5 at gmail.com>
>>>>  napisał:
>>>>>
>>>>> Forcing rate to 1M workarounded this issue.
>>>>
>>>> Working state seems to be random and not related to rate.
>>>>
>>>> Even if I manage to connect, I do not have a chance to achieve 1MB/s.
>>>>
>>>> At least ndiswrapper seems to work fine. I got easy&stable connection
>>>> and speed around 10MB/s. Nice to know my card is not faulty.
>>>
>>> What is the nature of that 4315 card? Mine is currently in use and has
>>> been
>>> working correctly. This is one of the original PCIe units with the SPROM
>>> at
>>> 0x1000.
>>>
>>> When I use the one in the netbook with the SPROM at 0x0800, the unit is a
>>> lot less stable.
>>
>> 14e4:4315
>> Mini PCIe
>> MMIO 16K
>> BCM94312HMG / DW1397
>> SSB 2.6
>> BCM4312
>> SPROM 8 (0x1000)
>> PMU 1
>> PHY LP / 1
>> RADIO 0x2062 / 2
>
> ssb: Core 0 found: ChipCommon (cc 0x800, rev 0x16, vendor 0x4243)
> ssb: Core 1 found: IEEE 802.11 (cc 0x812, rev 0x0F, vendor 0x4243)
> ssb: Core 2 found: PCMCIA (cc 0x80D, rev 0x0A, vendor 0x4243)
> ssb: Core 3 found: PCI-E (cc 0x820, rev 0x09, vendor 0x4243)
> ssb: chipcommon status is 0x10
> ssb: Found rev 1 PMU (capabilities 0x02A62F01)
> ssb: SPROM offset is 0x1000
> ssb: SPROM revision 8 detected.
> ssb: Sonics Silicon Backplane found on PCI device 0000:04:00.0
> b43-phy0: Broadcom 4312 WLAN found (core revision 15)
> b43-phy0 debug: Found PHY: Analog 6, Type 5, Revision 1
> b43-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2062, Revision 2
> b43 ssb0:0: wlan0: Features changed: 0x00004800 -> 0x00004000
> b43-phy0: Loading firmware version 508.1084 (2009-01-14 01:32:01)
> b43-phy0 debug: b2062: Using crystal tab entry 19200 kHz.
> b43-phy0 debug: Chip initialized
> b43-phy0 debug: 64-bit DMA initialized
> b43-phy0 debug: QoS enabled
>
> 04:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g
> LP-PHY [14e4:4315] (rev 01)
>        Subsystem: Hewlett-Packard Company BCM4312 802.11b/g Wireless LAN
> Controller [103c:137c]
>        Flags: bus master, fast devsel, latency 0, IRQ 21
>        Memory at fc000000 (64-bit, non-prefetchable) [size=16K]
>
> Other than mine is HP-branded, they appear to be the same. I am also 2 m
> from the AP and my rate is 36 Mbps.

Yeah, that's exactly the same card. The same cores, revisions, cc
status, PMU capabilities.

I just didn't try 508.1084 firmware. I've been playing with 410.2160,
478-104, 508.1103, 508.1107 however, so switching to your's version
probably won't help.

What is your network encryption and freq?

BSS 00:23:69:c2:65:06 (on wlan0)
        TSF: 665805184 usec (0d, 00:11:05)
        freq: 2427
        beacon interval: 100
        capability: ESS Privacy ShortSlotTime (0x0411)
        signal: -14.00 dBm
        last seen: 778 ms ago
        SSID: zajec_poznan_160
        Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
        DS Parameter set: channel 4
        ERP: <no flags>
        Extended supported rates: 24.0 36.0 48.0 54.0
        RSN:     * Version: 1
                 * Group cipher: CCMP
                 * Pairwise ciphers: CCMP
                 * Authentication suites: PSK
                 * Capabilities: 16-PTKSA-RC (0x000c)
        WMM:    * Parameter version 1
                * BE: CW 15-1023, AIFSN 3
                * BK: CW 15-1023, AIFSN 7
                * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
                * VO: acm CW 3-7, AIFSN 2, TXOP 1504 usec

network={
        ssid="zajec_poznan_160"
        key_mgmt=WPA-PSK
        proto=WPA RSN
        pairwise=CCMP TKIP
        group=CCMP TKIP
        psk="psssst"
}

-- 
Rafał