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

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

[科来 谭春海]

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), 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

 

 

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

[Keunhong Lee]

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@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),
> 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
>
>
>
>
>
>

Re: [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@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@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
>>
>>
>>
>>
>>
>>
>

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

[科来 谭春海]

Hi Keunhong,

 

Thanks for your response. Seems ixgbe only supports hw timestamping for PTP packets. But I still don’t understand why igb and e1000 support hw timestamping all packets while ixgbe does not.

 

发件人: Keunhong Lee [mailto:dlrmsghd@gmail.com] 
发送时间: 2015年6月1日 11:51
收件人: 科来 谭春海
抄送: dev@dpdk.org
主题: Re: [dpdk-dev] How to set timestamp in 82599 NICs in DPDK?

 

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/ixgbe_ptp.c#L640

says that

 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L640> 640         default:
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L641> 641                 /*
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L642> 642                  * register RXMTRL must be set in order to do V1 packets,
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L643> 643                  * therefore it is not possible to time stamp both V1 Sync and
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L644> 644                  * Delay_Req messages and hardware does not support
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L645> 645                  * timestamping all packets => return error
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L646> 646                  */
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L647> 647                  <http://lxr.free-electrons.com/ident?i=config> config->rx_filter = HWTSTAMP_FILTER_NONE;
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L648> 648                 return - <http://lxr.free-electrons.com/ident?i=ERANGE> ERANGE;
 <http://lxr.free-electrons.com/source/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c#L649> 649         }

 

Keunhong.

 

2015-06-01 11:38 GMT+09:00 科来 谭春海 <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/ <http://www.wand.net.nz/trac/libtrace/browser/Intel%20DPDK%20Patches/hardware_timestamp.patch?rev=ce7153dbc6a13c18bf8033af08c1249527754168> 
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