ok， i will examine the configuration on  the phy , maybe there is a difference  between ar8035 and ar8031, but i do not
 aware of it now.


thank you for helping me , thanks!




------------------ 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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