From: Julien Meunier <julien.meunier@6wind.com>
To: "Zhang, Helin" <helin.zhang@intel.com>, dev@dpdk.org
Subject: [dpdk-dev] i40e: cannot change mtu to enable jumbo frame
Date: Tue, 09 Feb 2016 17:35:45 +0100 [thread overview]
Message-ID: <56BA1561.3060201@6wind.com> (raw)
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
next reply other threads:[~2016-02-09 16:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-09 16:35 Julien Meunier [this message]
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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