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Date: Mon, 1 Jun 2015 12:51:24 +0900
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From: Keunhong Lee <dlrmsghd@gmail.com>
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Subject: Re: [dpdk-dev] How to set timestamp in 82599 NICs in DPDK?
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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@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/ixg=
be_ptp.c#L640
> says that
>
> 640 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgb=
e/ixgbe_ptp.c#L640>*         default:
> *641 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixg=
be/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 Sy=
nc and*644 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel=
/ixgbe/ixgbe_ptp.c#L644> *                 * Delay_Req messages and hardwar=
e does not support**
> 645 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgb=
e/ixgbe_ptp.c#L645>                  * timestamping all packets =3D> return=
 error
> *646 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixg=
be/ixgbe_ptp.c#L646>*                  */*647 <http://lxr.free-electrons.co=
m/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L647>                =
 config <http://lxr.free-electrons.com/ident?i=3Dconfig>*->rx_filter =3D HW=
TSTAMP_FILTER_NONE;
> *648 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixg=
be/ixgbe_ptp.c#L648>*                 return -*ERANGE <http://lxr.free-elec=
trons.com/ident?i=3DERANGE>*;
> *649 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixg=
be/ixgbe_ptp.c#L649>*         }*
>
>
> Keunhong.
>
> 2015-06-01 11:38 GMT+09:00 =E7=A7=91=E6=9D=A5 =E8=B0=AD=E6=98=A5=E6=B5=B7=
 <chunhai.tan@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=3Dce7153dbc6a13c18bf8033af08c1249527754168
>> <http://www.wand.net.nz/trac/libtrace/browser/Intel%20DPDK%20Patches/har=
dware_timestamp.patch?rev=3Dce7153dbc6a13c18bf8033af08c1249527754168>),
>> 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
>>
>>
>>
>>
>>
>>
>