------------------ 原始邮件 ------------------

发件人: "Hugh Brown";<community-noreply@qnx.com>;

发送时间: 2017年9月18日(星期一) 晚上8:18

收件人: "drivers-networking@community.qnx.com"<drivers-networking@community.qnx.com>;

主题: Re: 回复： [atheros] status is always no carrier

Starting the mx6x driver will turn the PHY off, but when you run “ifconfig fec0 up” the PHY should initialize and the link should come up. It sounds as though you have a configuration problem with the PHY.
The nicinfo state of “unknown” is because the link isn’t up. Then link state is normally read from the PHY status register.

On 2017-09-15, 10:53 PM, "blinking" <community-noreply@qnx.com> wrote:

    maybe the problem i described is not clear, i have already pluggled the cable into my board. the detail operations list as below:


    1.plugged the cable into my embeded board, and another port connect to my computer(win10).
    2.power on the board without starting the network service in the bulid configeration file. etc,
        #display_msg Starting Networking
        #io-pkt-v6-hc -dmx6x
        #if_up -p fec0
        #ifconfig fec0 up
        #dhclient -nw fec0

    3. the led of the net port in board and computer is on and blinking, at this time the phy is not init because i do not start the service.
    4. when i input io-pkt-v6-hc -d mx6x in the command line, the led is off, and the link becomes down, the nicinfo and ifconfig info in the last email


    the key point of this problem is why the status of ifconfig info is always no carrier, not active. Have you ever encountered such problems before?
    another question is the Current Operation Rate of nicinfo is always unknown, what does this means ? which register is this read?


    thank you very much!










    ------------------ 原始邮件 ------------------
    发件人: "Hugh Brown";<community-noreply@qnx.com>;
    发送时间: 2017年9月15日(星期五) 晚上8:26
    收件人: "drivers-networking@community.qnx.com"<drivers-networking@community.qnx.com>;

    主题: Re: [atheros] status is always no carrier



    Are you using a crossover cable to connect to your win10 machine? Have you tried plugging the cable into a switch?

    On 2017-09-15, 4:10 AM, "blinking" <community-noreply@qnx.com> wrote:

        hello,drivers-networking engineer：


            My Development Environment
              Host: Ubuntu 14.       Qnx: SDP 7.0      Target: iMx6q Sabre Auto/AI
        I face a strange problem when i am debugging phy(atheros ar8095) driver on imx6q board, when i have started the io-pkt service and configed ip, the nicinfo changes below:
          --> nicinfo
            fec0:
          i.MX6 Ethernet Controller


          Link is DOWN


          Physical Node ID ........................... 000012 345678
          Current Physical Node ID ................... 000012 345678
          Current Operation Rate ..................... Unknown
          Active Interface Type ...................... MII
            Active PHY address ....................... 0
          Maximum Transmittable data Unit ............ 1500
          Maximum Receivable data Unit ............... 1500
          Hardware Interrupt ......................... 0x96
          Hardware Interrupt ......................... 0x97
          Memory Aperture ............................ 0x2188000 - 0x2188fff
          Memory Aperture ............................ 0x2098000 - 0x2098fff
          Promiscuous Mode ........................... Off
          Multicast Support .......................... Enabled

        and the network port status is :
          -->ifconfig
        fec0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        address: 00:00:12:34:56:78
        media: Ethernet 10baseT full-duplex (none)
        status: no carrier
        inet 192.168.1.11 netmask 0xffffff00 broadcast 192.168.1.255
        inet6 fe80::200:12ff:fe34:5678%fec0 prefixlen 64 scopeid 0x11



        whatever the configuration of the phy has made,the fec0's status is always no carrier. by the way, cable is connected to my win10 computer.


        do you have any suggestions to my problem? thank u!



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        Networking Drivers
        http://community.qnx.com/sf/go/post118034
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    Networking Drivers
    http://community.qnx.com/sf/go/post118038
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    http://community.qnx.com/sf/go/post118039
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Networking Drivers
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