* [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
@ 2016-02-09 16:35 Julien Meunier
2016-02-09 19:05 ` Zhu, Heqing
2016-02-10 15:20 ` Zhang, Helin
0 siblings, 2 replies; 6+ messages in thread
From: Julien Meunier @ 2016-02-09 16:35 UTC (permalink / raw)
To: Zhang, Helin, dev
Hello Helin,
I tried to send jumbo frames to a i40e card. However, I observed that
all frames are dropped. Moreover, set_mtu function is not implemented on
i40e PMD.
> testpmd --log-level 8 --huge-dir=/mnt/huge -n 4 -l 2,18 --socket-mem
1024,1024 -w 0000:02:00.0 -w 0000:02:00.2 -- -i --nb-cores=1
--nb-ports=2 --total-num-mbufs=65536
=============
Configuration
=============
+-----------+ +-------------+
| | | |
| tgen | | |
| +----------+ port 0 |
| | | |
| | | |
| | | |
| | | |
| +----------+ port 1 |
| | | |
+-----------+ +-------------+
DPDK: DPDK-v2.2
==========
MTU = 1500
==========
Packet sent from a tgen
> p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP))
> len(p) = 1514
testpmd> start
PMD: i40e_rxd_to_vlan_tci(): Mbuf vlan_tci: 0, vlan_tci_outer: 0
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
PMD: i40e_update_vsi_stats(): rx_bytes: 1518
PMD: i40e_update_vsi_stats(): rx_unicast: 1
PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): rx_bytes: 1514
PMD: i40e_dev_stats_get(): rx_unicast: 1
PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
PMD: i40e_dev_stats_get(): rx_size_1522: 1
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 0 --------------
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 0 TX-dropped: 0 TX-total: 0
----------------------------------------------------------------------------
PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
PMD: i40e_update_vsi_stats(): tx_bytes: 1514
PMD: i40e_update_vsi_stats(): tx_unicast: 1
PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): tx_bytes: 1514
PMD: i40e_dev_stats_get(): tx_unicast: 1
PMD: i40e_dev_stats_get(): tx_size_1522: 1
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 1 --------------
RX-packets: 0 RX-dropped: 0 RX-total: 0
TX-packets: 1 TX-dropped: 0 TX-total: 1
----------------------------------------------------------------------------
+++++ Accumulated forward statistics for all ports+++++
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 1 TX-dropped: 0 TX-total: 1
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
=> OK
==========
MTU = 1600
==========
Packet sent
> p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP))
> len(p) = 1614
testpmd> port config mtu 0 1600
rte_eth_dev_set_mtu: Function not supported
Set MTU failed. diag=-95
testpmd> port config mtu 1 1600
rte_eth_dev_set_mtu: Function not supported
Set MTU failed. diag=-95
testpmd> start
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
PMD: i40e_update_vsi_stats(): rx_bytes: 1618
PMD: i40e_update_vsi_stats(): rx_unicast: 1
PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): rx_bytes: 1614
PMD: i40e_dev_stats_get(): rx_unicast: 1
PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
PMD: i40e_dev_stats_get(): rx_size_big: 1
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 0 --------------
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 0 TX-dropped: 0 TX-total: 0
----------------------------------------------------------------------------
PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
PMD: i40e_update_vsi_stats(): tx_bytes: 0
PMD: i40e_update_vsi_stats(): tx_unicast: 0
PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): tx_bytes: 0
PMD: i40e_dev_stats_get(): tx_unicast: 0
PMD: i40e_dev_stats_get(): tx_size_big: 0
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 1 --------------
RX-packets: 0 RX-dropped: 0 RX-total: 0
TX-packets: 0 TX-dropped: 0 TX-total: 0
----------------------------------------------------------------------------
+++++ Accumulated forward statistics for all ports+++++
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 0 TX-dropped: 0 TX-total: 0
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
=> Frame correctly received on port 0, but never forwarded or xmit on
port 1.
Does a mtu_set function will be developed soon in order to support jumbo
frame ?
Regards,
--
Julien MEUNIER
6WIND
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
2016-02-09 16:35 [dpdk-dev] i40e: cannot change mtu to enable jumbo frame Julien Meunier
@ 2016-02-09 19:05 ` Zhu, Heqing
2016-02-10 10:53 ` Julien Meunier
2016-02-10 15:20 ` Zhang, Helin
1 sibling, 1 reply; 6+ messages in thread
From: Zhu, Heqing @ 2016-02-09 19:05 UTC (permalink / raw)
To: Julien Meunier, Zhang, Helin, dev
Helin is still in Chinese New Year Vacation. Will the below command option help ?
4.5.9. port config - max-pkt-len
Set the maximum packet length:
testpmd> port config all max-pkt-len (value)
This is equivalent to the --max-pkt-len command-line option.
-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Julien Meunier
Sent: Tuesday, February 9, 2016 9:36 AM
To: Zhang, Helin <helin.zhang@intel.com>; dev@dpdk.org
Subject: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
Hello Helin,
I tried to send jumbo frames to a i40e card. However, I observed that all frames are dropped. Moreover, set_mtu function is not implemented on i40e PMD.
> testpmd --log-level 8 --huge-dir=/mnt/huge -n 4 -l 2,18 --socket-mem
1024,1024 -w 0000:02:00.0 -w 0000:02:00.2 -- -i --nb-cores=1
--nb-ports=2 --total-num-mbufs=65536
=============
Configuration
=============
+-----------+ +-------------+
| | | |
| tgen | | |
| +----------+ port 0 |
| | | |
| | | |
| | | |
| | | |
| +----------+ port 1 |
| | | |
+-----------+ +-------------+
DPDK: DPDK-v2.2
==========
MTU = 1500
==========
Packet sent from a tgen
> p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) > len(p) = 1514
testpmd> start
PMD: i40e_rxd_to_vlan_tci(): Mbuf vlan_tci: 0, vlan_tci_outer: 0
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
PMD: i40e_update_vsi_stats(): rx_bytes: 1518
PMD: i40e_update_vsi_stats(): rx_unicast: 1
PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): rx_bytes: 1514
PMD: i40e_dev_stats_get(): rx_unicast: 1
PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
PMD: i40e_dev_stats_get(): rx_size_1522: 1
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 0 --------------
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 0 TX-dropped: 0 TX-total: 0
----------------------------------------------------------------------------
PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
PMD: i40e_update_vsi_stats(): tx_bytes: 1514
PMD: i40e_update_vsi_stats(): tx_unicast: 1
PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): tx_bytes: 1514
PMD: i40e_dev_stats_get(): tx_unicast: 1
PMD: i40e_dev_stats_get(): tx_size_1522: 1
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 1 --------------
RX-packets: 0 RX-dropped: 0 RX-total: 0
TX-packets: 1 TX-dropped: 0 TX-total: 1
----------------------------------------------------------------------------
+++++ Accumulated forward statistics for all ports+++++
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 1 TX-dropped: 0 TX-total: 1
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
=> OK
==========
MTU = 1600
==========
Packet sent
> p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) > len(p) = 1614
testpmd> port config mtu 0 1600
rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
testpmd> port config mtu 1 1600
rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
testpmd> start
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...
PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
PMD: i40e_update_vsi_stats(): rx_bytes: 1618
PMD: i40e_update_vsi_stats(): rx_unicast: 1
PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): rx_bytes: 1614
PMD: i40e_dev_stats_get(): rx_unicast: 1
PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
PMD: i40e_dev_stats_get(): rx_size_big: 1
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 0 --------------
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 0 TX-dropped: 0 TX-total: 0
----------------------------------------------------------------------------
PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
PMD: i40e_update_vsi_stats(): tx_bytes: 0
PMD: i40e_update_vsi_stats(): tx_unicast: 0
PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
PMD: i40e_dev_stats_get(): *** PF stats start ***
PMD: i40e_dev_stats_get(): tx_bytes: 0
PMD: i40e_dev_stats_get(): tx_unicast: 0
PMD: i40e_dev_stats_get(): tx_size_big: 0
PMD: i40e_dev_stats_get(): *** PF stats end ***
-------------- Forward statistics for port 1 --------------
RX-packets: 0 RX-dropped: 0 RX-total: 0
TX-packets: 0 TX-dropped: 0 TX-total: 0
----------------------------------------------------------------------------
+++++ Accumulated forward statistics for all ports+++++
RX-packets: 1 RX-dropped: 0 RX-total: 1
TX-packets: 0 TX-dropped: 0 TX-total: 0
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
=> Frame correctly received on port 0, but never forwarded or xmit on port 1.
Does a mtu_set function will be developed soon in order to support jumbo frame ?
Regards,
--
Julien MEUNIER
6WIND
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
2016-02-09 19:05 ` Zhu, Heqing
@ 2016-02-10 10:53 ` Julien Meunier
2016-02-10 13:54 ` Ananyev, Konstantin
0 siblings, 1 reply; 6+ messages in thread
From: Julien Meunier @ 2016-02-10 10:53 UTC (permalink / raw)
To: Zhu, Heqing, Zhang, Helin, dev
On 02/09/2016 08:05 PM, Zhu, Heqing wrote:
> Helin is still in Chinese New Year Vacation. Will the below command option help ?
>
> 4.5.9. port config - max-pkt-len
> Set the maximum packet length:
>
> testpmd> port config all max-pkt-len (value)
> This is equivalent to the --max-pkt-len command-line option.
>
>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Julien Meunier
> Sent: Tuesday, February 9, 2016 9:36 AM
> To: Zhang, Helin <helin.zhang@intel.com>; dev@dpdk.org
> Subject: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
>
> Hello Helin,
>
> I tried to send jumbo frames to a i40e card. However, I observed that all frames are dropped. Moreover, set_mtu function is not implemented on i40e PMD.
>
> > testpmd --log-level 8 --huge-dir=/mnt/huge -n 4 -l 2,18 --socket-mem
> 1024,1024 -w 0000:02:00.0 -w 0000:02:00.2 -- -i --nb-cores=1
> --nb-ports=2 --total-num-mbufs=65536
>
> =============
> Configuration
> =============
>
> +-----------+ +-------------+
> | | | |
> | tgen | | |
> | +----------+ port 0 |
> | | | |
> | | | |
> | | | |
> | | | |
> | +----------+ port 1 |
> | | | |
> +-----------+ +-------------+
>
> DPDK: DPDK-v2.2
>
> ==========
> MTU = 1500
> ==========
> Packet sent from a tgen
> > p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) > len(p) = 1514
>
> testpmd> start
> PMD: i40e_rxd_to_vlan_tci(): Mbuf vlan_tci: 0, vlan_tci_outer: 0
> testpmd> stop
> Telling cores to stop...
> Waiting for lcores to finish...
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
> PMD: i40e_update_vsi_stats(): rx_bytes: 1518
> PMD: i40e_update_vsi_stats(): rx_unicast: 1
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): rx_bytes: 1514
> PMD: i40e_dev_stats_get(): rx_unicast: 1
> PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
> PMD: i40e_dev_stats_get(): rx_size_1522: 1
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 0 --------------
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ----------------------------------------------------------------------------
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
> PMD: i40e_update_vsi_stats(): tx_bytes: 1514
> PMD: i40e_update_vsi_stats(): tx_unicast: 1
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): tx_bytes: 1514
> PMD: i40e_dev_stats_get(): tx_unicast: 1
> PMD: i40e_dev_stats_get(): tx_size_1522: 1
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 1 --------------
> RX-packets: 0 RX-dropped: 0 RX-total: 0
> TX-packets: 1 TX-dropped: 0 TX-total: 1
>
> ----------------------------------------------------------------------------
>
> +++++ Accumulated forward statistics for all ports+++++
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 1 TX-dropped: 0 TX-total: 1
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> => OK
>
> ==========
> MTU = 1600
> ==========
> Packet sent
> > p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) > len(p) = 1614
>
> testpmd> port config mtu 0 1600
> rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
> testpmd> port config mtu 1 1600
> rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
> testpmd> start
> testpmd> stop
> Telling cores to stop...
> Waiting for lcores to finish...
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
> PMD: i40e_update_vsi_stats(): rx_bytes: 1618
> PMD: i40e_update_vsi_stats(): rx_unicast: 1
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): rx_bytes: 1614
> PMD: i40e_dev_stats_get(): rx_unicast: 1
> PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
> PMD: i40e_dev_stats_get(): rx_size_big: 1
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 0 --------------
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ----------------------------------------------------------------------------
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
> PMD: i40e_update_vsi_stats(): tx_bytes: 0
> PMD: i40e_update_vsi_stats(): tx_unicast: 0
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): tx_bytes: 0
> PMD: i40e_dev_stats_get(): tx_unicast: 0
> PMD: i40e_dev_stats_get(): tx_size_big: 0
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 1 --------------
> RX-packets: 0 RX-dropped: 0 RX-total: 0
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ----------------------------------------------------------------------------
>
> +++++ Accumulated forward statistics for all ports+++++
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> Done.
>
> => Frame correctly received on port 0, but never forwarded or xmit on port 1.
>
> Does a mtu_set function will be developed soon in order to support jumbo frame ?
>
> Regards,
>
> --
> Julien MEUNIER
> 6WIND
>
On testpmd, this command enables jumbo frame, you are right.
However, all ports need to be stopped: jumbo frame cannot be enabled at
runtime through the DPDK API on i40e PMD. Other Intel PMD, like ixgbe,
support this feature with the set_mtu API. Why not on i40e ?
Regards,
--
Julien MEUNIER
6WIND
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
2016-02-10 10:53 ` Julien Meunier
@ 2016-02-10 13:54 ` Ananyev, Konstantin
0 siblings, 0 replies; 6+ messages in thread
From: Ananyev, Konstantin @ 2016-02-10 13:54 UTC (permalink / raw)
To: Julien Meunier, Zhu, Heqing, Zhang, Helin, dev
>
> On 02/09/2016 08:05 PM, Zhu, Heqing wrote:
> > Helin is still in Chinese New Year Vacation. Will the below command option help ?
> >
> > 4.5.9. port config - max-pkt-len
> > Set the maximum packet length:
> >
> > testpmd> port config all max-pkt-len (value)
> > This is equivalent to the --max-pkt-len command-line option.
> >
> >
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Julien Meunier
> > Sent: Tuesday, February 9, 2016 9:36 AM
> > To: Zhang, Helin <helin.zhang@intel.com>; dev@dpdk.org
> > Subject: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
> >
> > Hello Helin,
> >
> > I tried to send jumbo frames to a i40e card. However, I observed that all frames are dropped. Moreover, set_mtu function is not
> implemented on i40e PMD.
> >
> > > testpmd --log-level 8 --huge-dir=/mnt/huge -n 4 -l 2,18 --socket-mem
> > 1024,1024 -w 0000:02:00.0 -w 0000:02:00.2 -- -i --nb-cores=1
> > --nb-ports=2 --total-num-mbufs=65536
> >
> > =============
> > Configuration
> > =============
> >
> > +-----------+ +-------------+
> > | | | |
> > | tgen | | |
> > | +----------+ port 0 |
> > | | | |
> > | | | |
> > | | | |
> > | | | |
> > | +----------+ port 1 |
> > | | | |
> > +-----------+ +-------------+
> >
> > DPDK: DPDK-v2.2
> >
> > ==========
> > MTU = 1500
> > ==========
> > Packet sent from a tgen
> > > p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) > len(p) = 1514
> >
> > testpmd> start
> > PMD: i40e_rxd_to_vlan_tci(): Mbuf vlan_tci: 0, vlan_tci_outer: 0
> > testpmd> stop
> > Telling cores to stop...
> > Waiting for lcores to finish...
> > PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
> > PMD: i40e_update_vsi_stats(): rx_bytes: 1518
> > PMD: i40e_update_vsi_stats(): rx_unicast: 1
> > PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
> > PMD: i40e_dev_stats_get(): *** PF stats start ***
> > PMD: i40e_dev_stats_get(): rx_bytes: 1514
> > PMD: i40e_dev_stats_get(): rx_unicast: 1
> > PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
> > PMD: i40e_dev_stats_get(): rx_size_1522: 1
> > PMD: i40e_dev_stats_get(): *** PF stats end ***
> >
> > -------------- Forward statistics for port 0 --------------
> > RX-packets: 1 RX-dropped: 0 RX-total: 1
> > TX-packets: 0 TX-dropped: 0 TX-total: 0
> >
> > ----------------------------------------------------------------------------
> > PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
> > PMD: i40e_update_vsi_stats(): tx_bytes: 1514
> > PMD: i40e_update_vsi_stats(): tx_unicast: 1
> > PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
> > PMD: i40e_dev_stats_get(): *** PF stats start ***
> > PMD: i40e_dev_stats_get(): tx_bytes: 1514
> > PMD: i40e_dev_stats_get(): tx_unicast: 1
> > PMD: i40e_dev_stats_get(): tx_size_1522: 1
> > PMD: i40e_dev_stats_get(): *** PF stats end ***
> >
> > -------------- Forward statistics for port 1 --------------
> > RX-packets: 0 RX-dropped: 0 RX-total: 0
> > TX-packets: 1 TX-dropped: 0 TX-total: 1
> >
> > ----------------------------------------------------------------------------
> >
> > +++++ Accumulated forward statistics for all ports+++++
> > RX-packets: 1 RX-dropped: 0 RX-total: 1
> > TX-packets: 1 TX-dropped: 0 TX-total: 1
> >
> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >
> > => OK
> >
> > ==========
> > MTU = 1600
> > ==========
> > Packet sent
> > > p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) > len(p) = 1614
> >
> > testpmd> port config mtu 0 1600
> > rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
> > testpmd> port config mtu 1 1600
> > rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
> > testpmd> start
> > testpmd> stop
> > Telling cores to stop...
> > Waiting for lcores to finish...
> > PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
> > PMD: i40e_update_vsi_stats(): rx_bytes: 1618
> > PMD: i40e_update_vsi_stats(): rx_unicast: 1
> > PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
> > PMD: i40e_dev_stats_get(): *** PF stats start ***
> > PMD: i40e_dev_stats_get(): rx_bytes: 1614
> > PMD: i40e_dev_stats_get(): rx_unicast: 1
> > PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
> > PMD: i40e_dev_stats_get(): rx_size_big: 1
> > PMD: i40e_dev_stats_get(): *** PF stats end ***
> >
> > -------------- Forward statistics for port 0 --------------
> > RX-packets: 1 RX-dropped: 0 RX-total: 1
> > TX-packets: 0 TX-dropped: 0 TX-total: 0
> >
> > ----------------------------------------------------------------------------
> > PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
> > PMD: i40e_update_vsi_stats(): tx_bytes: 0
> > PMD: i40e_update_vsi_stats(): tx_unicast: 0
> > PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
> > PMD: i40e_dev_stats_get(): *** PF stats start ***
> > PMD: i40e_dev_stats_get(): tx_bytes: 0
> > PMD: i40e_dev_stats_get(): tx_unicast: 0
> > PMD: i40e_dev_stats_get(): tx_size_big: 0
> > PMD: i40e_dev_stats_get(): *** PF stats end ***
> >
> > -------------- Forward statistics for port 1 --------------
> > RX-packets: 0 RX-dropped: 0 RX-total: 0
> > TX-packets: 0 TX-dropped: 0 TX-total: 0
> >
> > ----------------------------------------------------------------------------
> >
> > +++++ Accumulated forward statistics for all ports+++++
> > RX-packets: 1 RX-dropped: 0 RX-total: 1
> > TX-packets: 0 TX-dropped: 0 TX-total: 0
> >
> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >
> > Done.
> >
> > => Frame correctly received on port 0, but never forwarded or xmit on port 1.
> >
> > Does a mtu_set function will be developed soon in order to support jumbo frame ?
> >
> > Regards,
> >
> > --
> > Julien MEUNIER
> > 6WIND
> >
>
> On testpmd, this command enables jumbo frame, you are right.
>
> However, all ports need to be stopped: jumbo frame cannot be enabled at
> runtime through the DPDK API on i40e PMD. Other Intel PMD, like ixgbe,
> support this feature with the set_mtu API. Why not on i40e ?
Yes, as I know mtu-set is not implemented on i40e and some other devices ...
Patches are welcome, I suppose :)
Though note that even with ixgbe you can't set new mtu if it is bigger then
related mempool's buffer size and scattered_rx is not enabled.
And to enable scattered_rx, you'll need to stop and re-configure device anyway.
Konstantin
>
> Regards,
>
> --
> Julien MEUNIER
> 6WIND
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
2016-02-09 16:35 [dpdk-dev] i40e: cannot change mtu to enable jumbo frame Julien Meunier
2016-02-09 19:05 ` Zhu, Heqing
@ 2016-02-10 15:20 ` Zhang, Helin
2016-02-12 14:08 ` Julien Meunier
1 sibling, 1 reply; 6+ messages in thread
From: Zhang, Helin @ 2016-02-10 15:20 UTC (permalink / raw)
To: Julien Meunier, dev
> -----Original Message-----
> From: Julien Meunier [mailto:julien.meunier@6wind.com]
> Sent: Wednesday, February 10, 2016 12:36 AM
> To: Zhang, Helin <helin.zhang@intel.com>; dev@dpdk.org
> Subject: i40e: cannot change mtu to enable jumbo frame
>
> Hello Helin,
>
> I tried to send jumbo frames to a i40e card. However, I observed that all frames
> are dropped. Moreover, set_mtu function is not implemented on i40e PMD.
>
> > testpmd --log-level 8 --huge-dir=/mnt/huge -n 4 -l 2,18 --socket-mem
> 1024,1024 -w 0000:02:00.0 -w 0000:02:00.2 -- -i --nb-cores=1
> --nb-ports=2 --total-num-mbufs=65536
>
> =============
> Configuration
> =============
>
> +-----------+ +-------------+
> | | | |
> | tgen | | |
> | +----------+ port 0 |
> | | | |
> | | | |
> | | | |
> | | | |
> | +----------+ port 1 |
> | | | |
> +-----------+ +-------------+
>
> DPDK: DPDK-v2.2
>
> ==========
> MTU = 1500
> ==========
> Packet sent from a tgen
> > p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) >
> len(p) = 1514
>
> testpmd> start
> PMD: i40e_rxd_to_vlan_tci(): Mbuf vlan_tci: 0, vlan_tci_outer: 0
> testpmd> stop
> Telling cores to stop...
> Waiting for lcores to finish...
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
> PMD: i40e_update_vsi_stats(): rx_bytes: 1518
> PMD: i40e_update_vsi_stats(): rx_unicast: 1
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): rx_bytes: 1514
> PMD: i40e_dev_stats_get(): rx_unicast: 1
> PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
> PMD: i40e_dev_stats_get(): rx_size_1522: 1
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 0 --------------
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ----------------------------------------------------------------------------
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
> PMD: i40e_update_vsi_stats(): tx_bytes: 1514
> PMD: i40e_update_vsi_stats(): tx_unicast: 1
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): tx_bytes: 1514
> PMD: i40e_dev_stats_get(): tx_unicast: 1
> PMD: i40e_dev_stats_get(): tx_size_1522: 1
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 1 --------------
> RX-packets: 0 RX-dropped: 0 RX-total: 0
> TX-packets: 1 TX-dropped: 0 TX-total: 1
>
> ----------------------------------------------------------------------------
>
> +++++ Accumulated forward statistics for all ports+++++
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 1 TX-dropped: 0 TX-total: 1
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++
>
> => OK
>
> ==========
> MTU = 1600
> ==========
> Packet sent
> > p = Ether / IP / UDP / Raw(MTU + HDR(Ethernet)- HDR(IP) - HDR(UDP)) >
> len(p) = 1614
>
> testpmd> port config mtu 0 1600
> rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
> testpmd> port config mtu 1 1600
> rte_eth_dev_set_mtu: Function not supported Set MTU failed. diag=-95
> testpmd> start
> testpmd> stop
> Telling cores to stop...
> Waiting for lcores to finish...
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats start ***
> PMD: i40e_update_vsi_stats(): rx_bytes: 1618
> PMD: i40e_update_vsi_stats(): rx_unicast: 1
> PMD: i40e_update_vsi_stats(): *** VSI[13] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): rx_bytes: 1614
> PMD: i40e_dev_stats_get(): rx_unicast: 1
> PMD: i40e_dev_stats_get(): rx_unknown_protocol: 1
> PMD: i40e_dev_stats_get(): rx_size_big: 1
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 0 --------------
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ----------------------------------------------------------------------------
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats start ***
> PMD: i40e_update_vsi_stats(): tx_bytes: 0
> PMD: i40e_update_vsi_stats(): tx_unicast: 0
> PMD: i40e_update_vsi_stats(): *** VSI[14] stats end ***
> PMD: i40e_dev_stats_get(): *** PF stats start ***
> PMD: i40e_dev_stats_get(): tx_bytes: 0
> PMD: i40e_dev_stats_get(): tx_unicast: 0
> PMD: i40e_dev_stats_get(): tx_size_big: 0
> PMD: i40e_dev_stats_get(): *** PF stats end ***
>
> -------------- Forward statistics for port 1 --------------
> RX-packets: 0 RX-dropped: 0 RX-total: 0
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ----------------------------------------------------------------------------
>
> +++++ Accumulated forward statistics for all ports+++++
> RX-packets: 1 RX-dropped: 0 RX-total: 1
> TX-packets: 0 TX-dropped: 0 TX-total: 0
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++
>
> Done.
>
> => Frame correctly received on port 0, but never forwarded or xmit on port 1.
>
> Does a mtu_set function will be developed soon in order to support jumbo
> frame ?
Yes, we will implement soon later.
Could you help to try with max_pkt_len in port config for now?
Regards,
Helin
>
> Regards,
>
> --
> Julien MEUNIER
> 6WIND
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
2016-02-10 15:20 ` Zhang, Helin
@ 2016-02-12 14:08 ` Julien Meunier
0 siblings, 0 replies; 6+ messages in thread
From: Julien Meunier @ 2016-02-12 14:08 UTC (permalink / raw)
To: Zhang, Helin, dev
On 02/10/2016 04:20 PM, Zhang, Helin wrote:
>
>
>> -----Original Message-----
>> From: Julien Meunier [mailto:julien.meunier@6wind.com]
>> Sent: Wednesday, February 10, 2016 12:36 AM
>> To: Zhang, Helin <helin.zhang@intel.com>; dev@dpdk.org
>> Subject: i40e: cannot change mtu to enable jumbo frame
>> [...]
>> Does a mtu_set function will be developed soon in order to support jumbo
>> frame ?
> Yes, we will implement soon later.
> Could you help to try with max_pkt_len in port config for now?
>
> Regards,
> Helin
>
Hi,
When I stop ports, change max_pkt_len and restart ports, jumbo frame are
accepted. I was able to forward 9k frames on a i40e card.
I wrote a quick and dirty patch in order to add minimal support of MTU
for my test. I did not carefully study the impacts... Please advice.
---
i40e: add support of mtu configuration
Add support of MTU configuration.
Ports are stopped and then started in order to force
re-initialization of RX queues.
NOTE: This patch is still experimental.
Signed-off-by: Julien Meunier <julien.meunier@6wind.com>
---
drivers/net/i40e/i40e_ethdev.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 750206b..b4d6912 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -296,6 +296,7 @@ static int i40e_dev_queue_stats_mapping_set(struct
rte_eth_dev *dev,
uint8_t is_rx);
static void i40e_dev_info_get(struct rte_eth_dev *dev,
struct rte_eth_dev_info *dev_info);
+static int i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
static int i40e_vlan_filter_set(struct rte_eth_dev *dev,
uint16_t vlan_id,
int on);
@@ -439,6 +440,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {
.xstats_reset = i40e_dev_stats_reset,
.queue_stats_mapping_set = i40e_dev_queue_stats_mapping_set,
.dev_infos_get = i40e_dev_info_get,
+ .mtu_set = i40e_dev_mtu_set,
.vlan_filter_set = i40e_vlan_filter_set,
.vlan_tpid_set = i40e_vlan_tpid_set,
.vlan_offload_set = i40e_vlan_offload_set,
@@ -4681,6 +4683,37 @@ i40e_dev_rxtx_init(struct i40e_pf *pf)
}
static int
+i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct rte_eth_dev_info dev_info;
+ struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
+
+ i40e_dev_info_get(dev, &dev_info);
+
+ if ((frame_size < ETHER_MIN_MTU) || (frame_size >
dev_info.max_rx_pktlen)) {
+ PMD_DRV_LOG(ERR, "Invalid MTU\n");
+ return I40E_ERR_PARAM;
+ }
+
+ i40e_dev_stop(dev);
+ hw->adapter_stopped = 1;
+
+ /* switch to jumbo mode if needed */
+ if (frame_size > ETHER_MAX_LEN)
+ dev->data->dev_conf.rxmode.jumbo_frame = 1;
+ else
+ dev->data->dev_conf.rxmode.jumbo_frame = 0;
+
+ dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+
+ i40e_dev_start(dev);
+ hw->adapter_stopped = 0;
+
+ return 0;
+}
+
+static int
i40e_vmdq_setup(struct rte_eth_dev *dev)
{
struct rte_eth_conf *conf = &dev->data->dev_conf;
--
Regards,
--
Julien MEUNIER
6WIND
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-02-12 14:08 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2016-02-09 16:35 [dpdk-dev] i40e: cannot change mtu to enable jumbo frame Julien Meunier
2016-02-09 19:05 ` Zhu, Heqing
2016-02-10 10:53 ` Julien Meunier
2016-02-10 13:54 ` Ananyev, Konstantin
2016-02-10 15:20 ` Zhang, Helin
2016-02-12 14:08 ` Julien Meunier
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