[dpdk-dev] How to set timestamp in 82599 NICs in DPDK?

[Keunhong Lee]

http://dpdk.org/browse/dpdk/tree/app/test-pmd/ieee1588fwd.c

This code example contains enabling PTP with intel NICs.

Keunhong.



2015-06-01 12:48 GMT+09:00 Keunhong Lee <dlrmsghd at gmail.com>:

> 82599 supports hw timestamping for PTP packets.
> I don't know whether it supports timestamping for general packets.
>
>
>
> http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L640
> says that
>
> 640 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L640>*         default:
> *641 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L641>*                 /**642 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L642>*                  * register RXMTRL must be set in order to do V1 packets,*643 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L643>*                  * therefore it is not possible to time stamp both V1 Sync and*644 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L644> *                 * Delay_Req messages and hardware does not support**
> 645 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L645>                  * timestamping all packets => return error
> *646 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L646>*                  */*647 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L647>                 config <http://lxr.free-electrons.com/ident?i=config>*->rx_filter = HWTSTAMP_FILTER_NONE;
> *648 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L648>*                 return -*ERANGE <http://lxr.free-electrons.com/ident?i=ERANGE>*;
> *649 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L649>*         }*
>
>
> Keunhong.
>
> 2015-06-01 11:38 GMT+09:00 科来 谭春海 <chunhai.tan at colasoft.com.cn>:
>
>> Hi
>>
>>
>>
>> I noticed that there is a patch which can set hardware timestamp for the
>> received
>> packets(
>> http://www.wand.net.nz/trac/libtrace/browser/Intel%20DPDK%20Patches/
>> hardware_timestamp.patch?rev=ce7153dbc6a13c18bf8033af08c1249527754168
>> <http://www.wand.net.nz/trac/libtrace/browser/Intel%20DPDK%20Patches/hardware_timestamp.patch?rev=ce7153dbc6a13c18bf8033af08c1249527754168>),
>> but
>> it only works in e1000 and igb NICs. I want to capture packets with
>> timestamp info in 82599 NICs, what should I do? Could you give me some
>> help?
>>
>>
>>
>> Thanks.
>>
>>
>>
>> Chunhai Tan
>>
>>
>>
>>
>>
>>
>