Re: Failed to scan network with 2200BG

Alright, I *do* see some evidence of byte order problems in the following!

> ipw2200: I ipw_rx Packet: type=03 seq=00 bits=00
> ipw2200: I ipw_rx Notification: subtype=14 flags=A0 size=26624
> ipw2200: I ipw_rx_notification type = 20 (104 bytes)

The 1-byte values (type, subtype, flags) look fine.  

The 2-byte size value, though, is byte-reversed; decimal 26624 = 0x6800.  If we reverse the bytes, 0x68 = decimal 104, which is the size the driver expects in the notification packet!  Debug output on Intel machines looks normal (not byte reversed).

So, this has a pretty good chance of messing things up!

-- Ben --

> -----Original Message-----
> From: Pascal Fifre [mailto:[email protected]] 
> Sent: Tuesday, November 14, 2006 5:26 AM
> To: Cahill, Ben M; [email protected]
> Cc: Liu, Hong
> Subject: RE: [Ipw2100-devel] Failed to scan network with 2200BG
> 
> Hi,
> 
> I've made some debug traces with 0x01043FFFF. Then I've for 
> now some DMA problems. It seems that this problem appears 
> eachtime after this debug trace
> :
> I ipw_net_hard_start_xmit Tx attempt while not associated.
> 
> This is the traces :
> 
> ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.0kd
> ipw2200: Copyright(c) 2003-2006 Intel Corporation
> ieee80211: U alloc_ieee80211 Initializing...
> ipw2200: U ipw_pci_probe pci_resource_len = 0x00001000
> ipw2200: U ipw_pci_probe pci_resource_base = c5050000
> ipw2200: U ipw_sw_reset Hardware crypto [off]
> ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
> ipw2200: U ipw_get_fw Read firmware 'ipw2200-bss.fw' image 
> v3.0 (191126
> bytes)
> ipw2200: U ipw_load initial device response after 10ms
> ipw2200: U ipw_stop_master stop master 0ms
> ipw2200: U ipw_load_ucode Microcode OK, rev. 23249 (0x5ad1) 
> dev. 3 (0x3) of
> 11/2
> 2/04 20:27
> ipw2200: U ipw_load device response after 50ms
> ipw2200: U ipw_eeprom_init_sram Writing EEPROM data into SRAM
> ipw2200: U __ipw_send_cmd TX_POWER command (#35) 76 bytes: 0x00000003
> 00000000 0E 02 01 14 02 14 03 14  04 14 05 14 06 14 07 14   ........
> ........
> 00000010 08 14 09 14 0A 14 0B 14  0C 14 0D 14 0E 14 00 00   ........
> ........
> 00000020 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ........
> ........
> 00000030 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ........
> ........
> 00000040 00 00 00 00 00 00 00 00  00 00 00 00               
> ........ ....
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U __ipw_send_cmd TX_POWER command (#35) 76 bytes: 0x00000003
> 00000000 0E 01 01 14 02 14 03 14  04 14 05 14 06 14 07 14   ........
> ........
> 00000010 08 14 09 14 0A 14 0B 14  0C 14 0D 14 0E 14 00 00   ........
> ........
> 00000020 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ........
> ........
> 00000030 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ........
> ........
> 00000040 00 00 00 00 00 00 00 00  00 00 00 00               
> ........ ....
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U ipw_send_adapter_address eth1: Setting MAC to 
> 00:16:6f:93:c1:9b
> ipw2200: U __ipw_send_cmd ADAPTER_ADDRESS command (#11) 6 
> bytes: 0x00000003
> 00000000 00 16 6F 93 C1 9B                                  ..o...
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U __ipw_send_cmd SYSTEM_CONFIG command (#6) 20 
> bytes: 0x00000003
> 00000000 00 00 00 00 01 00 01 00  01 00 00 00 00 00 00 1E   ........
> ........
> 00000010 00 00 01 00                                        ....
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U __ipw_send_cmd SUPPORTED_RATES command (#22) 16 
> bytes: 0x00000003
> 00000000 02 0C 01 00 82 84 0B 16  0C 12 18 24 30 48 60 6C   ........
> ...$0H`l
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U __ipw_send_cmd RTS_THRESHOLD command (#15) 4 
> bytes: 0x00000003
> 00000000 00 09 00 00                                        ....
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U __ipw_send_cmd SEED_NUMBER command (#34) 4 bytes: 
> 0x00000003
> 00000000 2E F3 0A 50                                        ...P
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U __ipw_send_cmd HOST_COMPLETE command (#2) 0 bytes: 
> 0x00000003
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: U ipw_up Configured device on count 0
> ipw2200: U __ipw_send_cmd SCAN_REQUEST_EXT command (#26) 96 bytes:
> 0x00000023
> 00000000 00 00 00 00 4E 01 02 03  04 05 06 07 08 09 0A 0B   ....N...
> ........
> 00000010 0C 0D 0E 00 00 00 00 00  00 00 00 00 00 00 00 00   ........
> ........
> 00000020 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00   ........
> ........
> 00000030 00 00 00 00 00 00 00 00  00 00 03 33 33 33 33 33   ........
> ...33333
> 00000040 33 10 00 00 00 00 00 00  00 00 00 00 00 00 00 00   3.......
> ........
> 00000050 00 00 00 00 00 00 00 00  78 00 00 00 14 00 14 00   ........
> x.......
> ipw2200: I ipw_irq_tasklet Command completed.
> ipw2200: I ipw_rx Packet: type=03 seq=00 bits=00
> ipw2200: I ipw_rx Notification: subtype=14 flags=A0 size=26624
> ipw2200: I ipw_rx_notification type = 20 (104 bytes)
> ipw2200: I ipw_rx_notification TODO: Calibration
> ipw2200: Detected geography ZZR (14 802.11bg channels, 0 
> 802.11a channels)
> ipw2200: U ipw_net_open dev->open
> ipw2200: I ipw_rx Packet: type=03 seq=00 bits=00
> ipw2200: I ipw_rx Notification: subtype=0C flags=A0 size=11776
> ipw2200: I ipw_rx_notification type = 12 (46 bytes)
> ipw2200: I ipw_rx_notification Scan result for channel 1
> ipw2200: I ipw_net_hard_start_xmit Tx attempt while not associated.
> ~ # ipw2200: Start IPW Error Log Dump:
> ipw2200: Status: 0x00200020, Config: 00000340
> ipw2200: NMI_INTERRUPT 2765889 0x000003b4  0x00000000  0x000002f4
> 0x0000f578  0
> x00000000
> ipw2200: DMA_STATUS 2765893 0x00027000  0x00027420  
> 0x01540002  0x00000000 0x00 000000
> ipw2200: DMA_STATUS 2765896 0x00028400  0x00028420  
> 0x00540001  0x00000000 0x00
> 000001
> ipw2200: DMA_STATUS 2765900 0x00028000  0x000280b0  
> 0x00540000  0x9c6a4200 0x00
> 000002
> ipw2200: DMA_STATUS 2765904 0x00400000  0x00408000  
> 0x30408200  0x00000086 0x00
> 000003
> ipw2200: 176279 0x00000021      35
> ipw2200: 176282 0x00000021      22
> ipw2200: 176289 0x8021c504      22
> ipw2200: 176309 0x00000021      35
> ipw2200: 176312 0x00000021      22
> ipw2200: 176319 0x8021c604      22
> ipw2200: 176339 0x00000019      35
> ipw2200: 176342 0x00000019      22
> ipw2200: 176348 0x8019c704      22
> ipw2200: 176369 0x00000006      35
> ipw2200: 176372 0x00000006      22
> ipw2200: 176378 0x8006c804      22
> ipw2200: 176400 0x0000016d      288
> ipw2200: 177520 0x00000008      32
> ipw2200: 177531 0x00000014      35
> ipw2200: 177538 0x00000014      22
> ipw2200: 177544 0x8114c904      22
> ipw2200: 177579 0x0002aac0      96
> ipw2200: 182574 0x00000008      32
> ipw2200: 182585 0x0000000b      35
> ipw2200: 182589 0x0000000b      24
> ipw2200: 182598 0x00000172      25
> ipw2200: 182599 0x0002aac0      98
> ipw2200: 1226781        0x00000002      135
> ipw2200: 1226805        0x000000c7      201
> ipw2200: 1226818        0x00000002      99
> ipw2200: 1226822        0x00000002      99
> ipw2200: 1226826        0x00000001      99
> ipw2200: 1229035        0x00000032      9
> ipw2200: 1229038        0x00000017      9
> ipw2200: 1229041        0x000005c1      9
> ipw2200: 1229070        0x00000002      99
> ipw2200: 1229073        0x0002999c      99
> ipw2200: 1229078        0x00000130      287
> ipw2200: 1229186        0x0000016d      288
> ipw2200: 2252830        0x0002aac0      96
> ipw2200: 2273299        0x0000021a      93
> ipw2200: 2273302        0x0000054d      183
> ipw2200: 2273309        0x00000007      184
> ipw2200: 2273313        0x00000004      183
> ipw2200: 2273318        0x0000042b      191
> ipw2200: 173542 0x00000021      22
> ipw2200: 173548 0x8021af04      22
> ipw2200: 173568 0x00000006      35
> ipw2200: 173572 0x00000006      22
> ipw2200: 173578 0x8006b004      22
> ipw2200: 173630 0x00000389      140
> ipw2200: 173634 0xffffffff      139
> ipw2200: 173637 0x000003c8      139
> ipw2200: 173658 0x000002bd      129
> ipw2200: 173663 0x00000138      88
> ipw2200: 173667 0x00000001      85
> ipw2200: 173670 0x00000001      86
> ipw2200: 173673 0x00000002      87
> ipw2200: 173677 0x000001b3      130
> ipw2200: 173681 0x00000001      135
> ipw2200: 173685 0x00000001      99
> ipw2200: 173689 0x00000001      99
> ipw2200: 173693 0x00000000      99
> ipw2200: 174978 0x00000008      32
> ipw2200: 174989 0x0000001b      35
> ipw2200: 174993 0x0000001b      22
> ipw2200: 174999 0x801bb104      22
> ipw2200: 175019 0x0000001c      35
> ipw2200: 175023 0x0000001c      22
> ipw2200: 175029 0x801cb204      22
> ipw2200: 175049 0x00000021      35
> ipw2200: 175053 0x00000021      22
> ipw2200: 175059 0x8021b304      22
> ipw2200: 175079 0x00000021      35
> ipw2200: 175082 0x00000021      22
> ipw2200: 175089 0x8021b404      22
> ipw2200: 175109 0x00000019      35
> ipw2200: 175112 0x00000019      22
> ipw2200: 175118 0x8019b504      22
> ipw2200: 175139 0x0000001b      35
> ipw2200: 175142 0x0000001b      22
> ipw2200: 175148 0x801bb604      22
> ipw2200: 175168 0x0000001c      35
> ipw2200: 175172 0x0000001c      22
> ipw2200: 175178 0x801cb704      22
> ipw2200: 175198 0x00000021      35
> ipw2200: 175202 0x00000021      22
> ipw2200: 175208 0x8021b804      22
> ipw2200: 175228 0x00000021      35
> ipw2200: 175232 0x00000021      22
> ipw2200: 175238 0x8021b904      22
> ipw2200: 175258 0x00000019      35
> ipw2200: 175262 0x00000019      22
> ipw2200: 175268 0x8019ba04      22
> ipw2200: 175288 0x00000019      35
> ipw2200: 175292 0x00000019      22
> ipw2200: 175298 0x8019bb04      22
> ipw2200: 175318 0x00000019      35
> ipw2200: 175322 0x00000019      22
> ipw2200: 175328 0x8019bc04      22
> ipw2200: 175348 0x00000019      35
> ipw2200: 175351 0x00000019      22
> ipw2200: 175358 0x8019bd04      22
> ipw2200: 175894 0x00000032      9
> ipw2200: 175897 0x00000017      9
> ipw2200: 175900 0x000005c1      9
> ipw2200: 175929 0x00000001      99
> ipw2200: 175934 0x00000008      32
> ipw2200: 175945 0x00000021      35
> ipw2200: 175949 0x00000021      22
> ipw2200: 175955 0x8021be04      22
> ipw2200: 175973 0x00029994      99
> ipw2200: 175978 0x00000130      287
> ipw2200: 176088 0x00000008      32
> ipw2200: 176099 0x0000001c      35
> ipw2200: 176103 0x0000001c      22
> ipw2200: 176109 0x801cbf04      22
> ipw2200: 176129 0x00000021      35
> ipw2200: 176133 0x00000021      22
> ipw2200: 176139 0x8021c004      22
> ipw2200: 176159 0x00000021      35
> ipw2200: 176163 0x00000021      22
> ipw2200: 176169 0x8021c104      22
> ipw2200: 176189 0x00000019      35
> ipw2200: 176193 0x00000019      22
> ipw2200: 176199 0x8019c204      22
> ipw2200: 176219 0x00000019      35
> ipw2200: 176223 0x00000019      22
> ipw2200: 176229 0x8019c304      22
> ipw2200: 176249 0x0000001c      35
> ipw2200: 176252 0x0000001c      22
> ipw2200: 176259 0x801cc404      22
> ipw2200: Failed to send SCAN_ABORT: Command timed out.
> ipw2200: Failed to send CARD_DISABLE: Command timed out.
> ipw2200: Failed to send SCAN_ABORT: Command timed out.
> ipw2200: Failed to send CARD_DISABLE: Command timed out.
> ipw2200: Failed to send SCAN_ABORT: Command timed out.
> ipw2200: Failed to send CARD_DISABLE: Command timed out.
> ipw2200: Failed to send SCAN_ABORT: Command timed out.
> ipw2200: Failed to send CARD_DISABLE: Command timed out.
> ipw2200: Failed to send SCAN_ABORT: Command timed out.
> ipw2200: Failed to send CARD_DISABLE: Command timed out.
> ipw2200: Failed to send SCAN_REQUEST_EXT: Command timed out.
> 
> Thanks for your explanation.
> 
> Pascal FIFRE
> Responsable Systèmes Embarqués
> CLEODE
> 5, rue de Broglie
> 22300 LANNION
> Tel : 02 96 48 68 18
> http://www.cleode.com
> -----Message d'origine-----
> De : Cahill, Ben M [mailto:[email protected]] Envoyé : 
> lundi 13 novembre 2006 22:50 À : Pascal Fifre; 
> [email protected]
> Cc : Liu, Hong
> Objet : RE: [Ipw2100-devel] Failed to scan network with 2200BG
> 
> 
> > 
> > I expect to find a network on the 11th channel. I use another 
> > 2200BG on a PC under Windows that find a network on this Channel.
> 
> Thanks.
> 
> > 
> > In these traces, no NMI was transmitted, but sometimes it happens.
> > 
> > Another question: I use a PowerPC platform with a little 
> > endian bus on the PCI. Do I have a realignment of dma data?
> 
> I would guess that Linux infrastructure would do the right thing here,
> but that's not an area I'm really familiar with.  Since the 
> commands are
> issued to the 2200 via DMA, and the scan seems to be working (at least
> going through the motions successfully, as the driver sees it), I'd
> guess that DMA is working okay.
> 
> Could you try using debug=0x01043fff?  This adds the DEBUG_RX 
> output to
> the log.  It should show up something if you're receiving any 
> packets at
> all.
> 
> If you want to try some hacking to check the sanity of the 
> data, as the
> driver sees it, try adding an IPW_DEBUG_RX() or two within ipw_rx().
> ipw_rx() is the first function that starts figuring out what 
> to do with
> a frame notification from the 2200 hardware.  You should be able to
> examine the ieee80211 header there.  Within ipw_rx(), search for
> "ieee80211_hdr_4addr" and see how the "header" variable gets set up.
> Try IPW_DEBUG_RX for a few values within the ieee80211 header,
> preferably before ipw_rx() gets into parsing stuff (and 
> perhaps getting
> confused if data is swapped around!).  Don't confuse ieee80211 header
> (part of data payload) with the packet->header (added by 2200 firmware
> to tell driver what kind of info it's sending to driver, etc.).
> 
> For "extra credit", take a look at ipw_report_frame() in the ipw3945
> driver, and see if you could port that over to 2200.  I put
> ipw_report_frame() in the 3945 driver a while back, to help debug
> scanning issues there ... never got to put it into 2200.
> 
> BTW, if the AP signal is reasonably strong, you might receive packets
> when tuned to channels other than 11.  This is normal behavior for B/G
> band, because of channel overlap (20 MHz channel width, 5 MHz channel
> separation).
> 
> -- Ben --  
> 
> 
> > 
> > Thanks
> > 
> > Pascal FIFRE
> --------------------------------------------------------------
> --------------
> -----------
> Orange vous informe que cet  e-mail a ete controle par 
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> Aucun virus connu a ce jour par nos services n'a ete detecte.
> 
> 

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