I'm having trouble getting PTP (ptp4l) running with the latest ixgbe driver.
I am getting "timed out while polling for tx timestamp" when I try and
start up ptp4l. I've tried increasing the tx_timestamp_timeout from the
default of 1 to 1000, but the result is the same.
On kernel 3.10 it works normally if I roll back to 3.22.3. 3.22.3 won't
compile on 3.18, so I haven't tested it there.
Kernel is 3.18.1 or 3.10.44 with CentOS6, tried with the CentOS6 linuxptp
(v1.4, 2.20140318git2b099c.el6) as well as building from 1.5, both with the
same result:
Here's the log output from ptp4l: (note this process loops endlessly)
Jan 12 15:59:16 sec50 ptp4l: [518411.404] selected /dev/ptp1 as PTP clock
Jan 12 15:59:16 sec50 ptp4l: [518411.405] port 1: INITIALIZING to LISTENING
on INITIALIZE
Jan 12 15:59:16 sec50 ptp4l: [518411.405] port 0: INITIALIZING to LISTENING
on INITIALIZE
Jan 12 15:59:17 sec50 ptp4l: [518412.146] port 1: new foreign master
002590.fffe.11233c-1
Jan 12 15:59:21 sec50 ptp4l: [518416.146] selected best master clock
002590.fffe.11233c
Jan 12 15:59:21 sec50 ptp4l: [518416.146] port 1: LISTENING to UNCALIBRATED
on RS_SLAVE
Jan 12 15:59:23 sec50 ptp4l: [518418.759] timed out while polling for tx
timestamp
Jan 12 15:59:23 sec50 ptp4l: [518418.759] increasing tx_timestamp_timeout
may correct this issue, but it is likely caused by a driver bug
Jan 12 15:59:23 sec50 ptp4l: [518418.759] port 1: send delay request failed
Jan 12 15:59:23 sec50 ptp4l: [518418.759] port 1: UNCALIBRATED to FAULTY on
FAULT_DETECTED (FT_UNSPECIFIED)
Hardware, if it matters, is Intel X520-DA2.
Thanks,
Scott Silverman
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