Hi, I recently migrated from using the native 1G MAC with PTP support in my Intel Stratix 10 SoC FPGA ARM processor to a new 10G MAC with PTP support based on a Rocketboards sample project (https://rocketboards.org/foswiki/Projects/Stratix10SoCDesignExampleFor10GbeWithIEEE1588PTPCapability) . I have tested out the sample project using their targeted hardware (Stratix 10 SX Dev Kit) and observed that both 10G Ethernet communications and PTP functionality work well.
On my hardware the interface also works well and I am able to send receive Ethernet messages from my ARM processor. However, when I try to use ptp4l I am getting a strange sequence of events. * Ptp4l starts up and recognizes my remote GM clock. * It attempts to send out a Delay Request message and reports that the message failed. * Ptp4l then goes into the Faulty state. root@stratix10:~/ptp4l_output# ./ptp4l -m -s -H -i eth0 --tx_timestamp_timeout 100 ptp4l[269.984]: selected /dev/ptp0 as PTP clock [ 269.994322] intel_fpga_qse_ll f9030000.ethernet eth0: qse_set_hwtstamp_config config flags:0x0, tx_type:0x1, rx_filter:0xc ptp4l[270.000]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[270.000]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[271.704]: port 1: new foreign master 001b21.fffe.c00dd6-1 ptp4l[275.704]: selected best master clock 001b21.fffe.c00dd6 ptp4l[275.704]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE ptp4l[275.868]: timed out while polling for tx timestamp ptp4l[275.868]: increasing tx_timestamp_timeout may correct this issue, but it is likely caused by a driver bug ptp4l[275.868]: port 1: send delay request failed ptp4l[275.868]: port 1: UNCALIBRATED to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED) However, I see in Wireshark that the ARM processor did indeed send out the Delay Request message. The GM also responded correctly with the Delay Response message! I modified the ptp4l source code to print out the errno and resolved error message in the function that prints out "send delay request failed" (port.c). I am seeing an errno of 6 which resolves to "No such device or address". Do you have any clue what could be causing this strange behavior? Thanks, Daniel
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