Re: [Linuxptp-users] linuxptp tx_timestamp_timeout

[frank <sou...@gm...>]

Hi,

On 11/13/2015 02:29 PM, Richard Cochran wrote:
> On Fri, Nov 13, 2015 at 01:26:45PM +0100, frank wrote:
>
>> It seems that linuxptp fails to work if the rootfs is mounted with nfs.
>> I debugged this a bit and it seems that already light nfs traffic causes
>> the issue.
> Sounds like a driver issue.  (You didn't tell us anything about your HW.)
>  

Oh sorry, I am using a beagle-bone-black (REV-C I think) with kernel
3.8.13 currently-

dmesg says the following related to eth0:

[    0.879361] cpsw 4a100000.ethernet: NAPI disabled
[    5.728721] net eth0: initializing cpsw version 1.12 (0)
[    5.732129] net eth0: phy found : id is : 0x7c0f1
[    5.737245] net eth0: phy 4a101000.mdio:01 not found on slave 1

and

$ sudo ethtool -T eth0
Time stamping parameters for eth0:
Capabilities:
        hardware-transmit     (SOF_TIMESTAMPING_TX_HARDWARE)
        software-transmit     (SOF_TIMESTAMPING_TX_SOFTWARE)
        hardware-receive      (SOF_TIMESTAMPING_RX_HARDWARE)
        software-receive      (SOF_TIMESTAMPING_RX_SOFTWARE)
        software-system-clock (SOF_TIMESTAMPING_SOFTWARE)
        hardware-raw-clock    (SOF_TIMESTAMPING_RAW_HARDWARE)
PTP Hardware Clock: 0
Hardware Transmit Timestamp Modes:
        off                   (HWTSTAMP_TX_OFF)
        on                    (HWTSTAMP_TX_ON)
Hardware Receive Filter Modes:
        none                  (HWTSTAMP_FILTER_NONE)
        ptpv2-event           (HWTSTAMP_FILTER_PTP_V2_EVENT)


kind regards
  Frank