From: "John Daley (johndale)" <johndale@cisco.com>
To: Ruth Christen <RuthC@Radware.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] enic in passhtrough mode tx drops
Date: Thu, 16 Jun 2016 17:02:28 +0000 [thread overview]
Message-ID: <187398f4c46f4ead9bf6b3df6e96f5af@XCH-RCD-007.cisco.com> (raw)
In-Reply-To: <3C2AE3A004FB424A9D4DB093543E06A9E91B18D0@ILMB1.corp.radware.com>
Hi Ruth,
I'm the enic pmd maintainer. To cut down on chatter I can work with you off list and then we can post the result to dev@.
I'd like to see the packet formed in the app and what's on the wire egress, that you are sending on a configured VLAN, etc.
I'll contact you directly.
-john
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Ruth Christen
> Sent: Thursday, June 16, 2016 6:13 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] enic in passhtrough mode tx drops
>
> Hi all,
>
> I'm running a vm attached to 2 cisco Virtual Card Interfaces in passthrough
> mode in a cisco UCS. The vNICs are configured on access mode without VLAN
> ID.
>
> The incoming packets are arriving with 802.1q header containing vlan priority
> bit according to the class of service configured on the vNIC. I understood this
> is expected from a fiber channel Ethernet card.
>
> According to dpdk documentation there's a need to set the
> VLAN_STRIP_OFFLOAD flag and call rte_eth_dev_set_vlan_offload on the
> ports.
>
> If I run a simple l2fwd application where the same packet received in one
> port is sent through the other the traffic works ok.
>
> If I generate the packets in my vm and send them out traffic doesn't work. (I
> tried send the traffic out with/without a 802.1q header with priority bit)
>
>
>
> Is there a specific configuration to be added to the mbuff for the tx packets
> generated in the VM? Could be the vlan_tci/ ol_flags/ or any other missing
> flag set?
>
> Does somebody know the exact behavior of the enic card with the priority
> tagging?
>
>
>
> BTW in virtio mode the traffic works in both the flows.
>
>
>
> Thanks a lot!
>
>
next prev parent reply other threads:[~2016-06-16 17:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3C2AE3A004FB424A9D4DB093543E06A9E91B17C9@ILMB1.corp.radware.com>
2016-06-16 13:13 ` Ruth Christen
2016-06-16 17:02 ` John Daley (johndale) [this message]
2016-06-21 7:34 ` Ruth Christen
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