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From: Ophir Munk <ophirmu@nvidia.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>, Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Beilei Xing <beilei.xing@intel.com>,
	Bernard Iremonger <bernard.iremonger@intel.com>,
	Olivier Matz <olivier.matz@6wind.com>
Cc: Ophir Munk <ophirmu@mellanox.com>
Subject: Re: [dpdk-dev] [PATCH v5 1/3] app/testpmd: add GENEVE parsing
Date: Wed, 7 Oct 2020 14:52:47 +0000
Message-ID: <DM5PR12MB116152B83A0A86E3AC0A8A6FDC0A0@DM5PR12MB1161.namprd12.prod.outlook.com> (raw)
In-Reply-To: <d00ad899-434f-ec95-31b0-ea3663f9d8ed@intel.com>

Hi Ferruh,
Please find comments inline.

> -----Original Message-----
> From: Ferruh Yigit <ferruh.yigit@intel.com>
> Sent: Tuesday, October 6, 2020 5:31 PM
> To: Ophir Munk <ophirmu@nvidia.com>; dev@dpdk.org; Wenzhuo Lu
<...>
> >
> >   uint16_t vxlan_gpe_udp_port = 4790;
> > +uint16_t geneve_udp_port = RTE_GENEVE_DEFAULT_PORT;
> >
> 
> There is a testpmd command to configure the NIC for GENEVE port, "port
> config (port_id) udp_tunnel_port add|rm vxlan|geneve|vxlan-gpe
> (udp_port)"
> 
> You are adding support to testpmd to parse the GENEVE packets, but I think
> these two commads should be consistent.
> 
> What do you think "port config N add geneve X" update the
> 'geneve_udp_port=X"?
> 
> <...>
> 

It is not as simple as suggested.
The command "port config N add geneve X" can be repeated several times - adding another geneve port to the NIC Hardware/Firmware to recognize. As a result the NIC is configured with multiple geneve ports. On the other hand geneve_udp_port is a single variable - so whenever a new "port config" command is executed - we will override the last geneve port and forget all the precedent ones.
The port config command also has a "rm" option in addition to "add". So if we removed the last port - what will we assigned to geneve_udp_port? We need to have a small data base for managing geneve ports.
testpmd also has an option " --geneve-port=N". It should be synched with the "port config" command.

Another issue to consider is if there is a need for the suggested feature. I think the "port config" is mainly targeted for offloading. So the NIC will probably encap/decap a packet with geneve - leaving testpmd paring unneeded.

My point is that your suggestion requires an RFC before implementation.

> 
> > @@ -865,9 +925,17 @@ pkt_burst_checksum_forward(struct fwd_stream
> *fs)
> >   				}
> >   				parse_vxlan(udp_hdr, &info,
> >   					    m->packet_type);
> > -				if (info.is_tunnel)
> > +				if (info.is_tunnel) {
> >   					tx_ol_flags |=
> >   						PKT_TX_TUNNEL_VXLAN;
> > +					goto tunnel_update;
> > +				}
> > +				parse_geneve(udp_hdr, &info);
> > +				if (info.is_tunnel) {
> > +					tx_ol_flags |=
> > +						PKT_TX_TUNNEL_GENEVE;
> > +					goto tunnel_update;
> > +				}
> 
> Can you please update the "csum parse-tunnel" documentation to mention
> "geneve"
> protocol?

Done in v6. I added other missing tunnel protocols (in alphabetical order) such as "gtp". Since it is more than geneve I added it to the 3rd (cleanup) commit.


  reply index

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-29  8:29 [dpdk-dev] [PATCH v1 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-07-29  8:29 ` [dpdk-dev] [PATCH v1 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-07-29  8:29 ` [dpdk-dev] [PATCH v1 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-07-29  8:29 ` [dpdk-dev] [PATCH v1 3/3] app/testpmd: reduce tunnel parsing code duplication Ophir Munk
2020-08-27  7:02   ` [dpdk-dev] [PATCH v2 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-08-27  7:02     ` [dpdk-dev] [PATCH v2 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-09-14 17:27       ` Ferruh Yigit
2020-09-15 12:53       ` [dpdk-dev] [PATCH v3 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-09-15 12:53         ` [dpdk-dev] [PATCH v3 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-09-15 13:17           ` [dpdk-dev] [PATCH v4 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-09-15 13:17             ` [dpdk-dev] [PATCH v4 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-09-15 13:56               ` Ophir Munk
2020-09-17 12:23               ` Olivier Matz
2020-09-18 14:21                 ` Ophir Munk
2020-09-18 14:17               ` [dpdk-dev] [PATCH v5 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-09-18 14:17                 ` [dpdk-dev] [PATCH v5 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-10-06 14:30                   ` Ferruh Yigit
2020-10-07 14:52                     ` Ophir Munk [this message]
2020-10-07 16:25                       ` Ferruh Yigit
2020-10-08  8:44                         ` Ophir Munk
2020-10-08 13:37                           ` Ferruh Yigit
2020-10-07 15:30                   ` [dpdk-dev] [PATCH v6 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-10-07 15:30                     ` [dpdk-dev] [PATCH v6 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-10-08 20:16                       ` [dpdk-dev] [PATCH v7 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk
2020-10-08 20:16                         ` [dpdk-dev] [PATCH v7 1/3] app/testpmd: add GENEVE parsing Ophir Munk
2020-10-08 20:16                         ` [dpdk-dev] [PATCH v7 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-10-08 20:16                         ` [dpdk-dev] [PATCH v7 3/3] app/testpmd: tunnel parsing protocols cleanup Ophir Munk
2020-10-09 12:49                         ` [dpdk-dev] [PATCH v7 0/3] Add GENEVE protocol parsing to testpmd Ferruh Yigit
2020-10-07 15:30                     ` [dpdk-dev] [PATCH v6 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-10-07 15:30                     ` [dpdk-dev] [PATCH v6 3/3] app/testpmd: tunnel parsing protocols cleanup Ophir Munk
2020-10-07 16:05                       ` Ferruh Yigit
2020-09-18 14:17                 ` [dpdk-dev] [PATCH v5 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-09-18 14:17                 ` [dpdk-dev] [PATCH v5 3/3] app/testpmd: reduce tunnel parsing code duplication Ophir Munk
2020-10-06 14:30                   ` Ferruh Yigit
2020-10-07 10:56                     ` Ophir Munk
2020-10-06 14:58                 ` [dpdk-dev] [PATCH v5 0/3] Add GENEVE protocol parsing to testpmd Ferruh Yigit
2020-10-07 15:43                   ` Ophir Munk
2020-10-07 16:00                     ` Ferruh Yigit
2020-09-15 13:17             ` [dpdk-dev] [PATCH v4 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-09-15 13:17             ` [dpdk-dev] [PATCH v4 3/3] app/testpmd: reduce tunnel parsing code duplication Ophir Munk
2020-09-15 12:53         ` [dpdk-dev] [PATCH v3 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-09-15 12:53         ` [dpdk-dev] [PATCH v3 3/3] app/testpmd: reduce tunnel parsing code duplication Ophir Munk
2020-08-27  7:02     ` [dpdk-dev] [PATCH v2 2/3] app/testpmd: enable configuring GENEVE port Ophir Munk
2020-09-14 17:31       ` Ferruh Yigit
2020-09-15  8:46         ` Ophir Munk
2020-09-15 11:07           ` Ferruh Yigit
2020-09-15 12:59             ` Ophir Munk
2020-09-15 13:19               ` Ophir Munk
2020-08-27  7:02     ` [dpdk-dev] [PATCH v2 3/3] app/testpmd: reduce tunnel parsing code duplication Ophir Munk
2020-08-31  6:40     ` [dpdk-dev] [PATCH v2 0/3] Add GENEVE protocol parsing to testpmd Ophir Munk

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