From: "Xueming(Steven) Li" <xuemingl@mellanox.com>
To: "Nélio Laranjeiro" <nelio.laranjeiro@6wind.com>
Cc: Shahaf Shuler <shahafs@mellanox.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow
Date: Thu, 19 Apr 2018 11:53:05 +0000 [thread overview]
Message-ID: <DB5PR05MB1671DBCDA036A1F21A66B432ACB50@DB5PR05MB1671.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <20180419111526.kh4rdujzomrb4isz@laranjeiro-vm.dev.6wind.com>
> -----Original Message-----
> From: Nélio Laranjeiro <nelio.laranjeiro@6wind.com>
> Sent: Thursday, April 19, 2018 7:15 PM
> To: Xueming(Steven) Li <xuemingl@mellanox.com>
> Cc: Shahaf Shuler <shahafs@mellanox.com>; dev@dpdk.org
> Subject: Re: [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow
>
> On Thu, Apr 19, 2018 at 10:21:26AM +0000, Xueming(Steven) Li wrote:
> >
> >
> > > -----Original Message-----
> > > From: Nélio Laranjeiro <nelio.laranjeiro@6wind.com>
> > > Sent: Thursday, April 19, 2018 2:56 PM
> > > To: Xueming(Steven) Li <xuemingl@mellanox.com>
> > > Cc: Shahaf Shuler <shahafs@mellanox.com>; dev@dpdk.org
> > > Subject: Re: [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow
> > >
> > > On Thu, Apr 19, 2018 at 06:20:50AM +0000, Xueming(Steven) Li wrote:
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Nélio Laranjeiro <nelio.laranjeiro@6wind.com>
> > > > > Sent: Wednesday, April 18, 2018 11:09 PM
> > > > > To: Xueming(Steven) Li <xuemingl@mellanox.com>
> > > > > Cc: Shahaf Shuler <shahafs@mellanox.com>; dev@dpdk.org
> > > > > Subject: Re: [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow
> > > > >
> > > > > On Wed, Apr 18, 2018 at 02:43:30PM +0000, Xueming(Steven) Li wrote:
> > > > > >
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Nélio Laranjeiro <nelio.laranjeiro@6wind.com>
> > > > > > > Sent: Wednesday, April 18, 2018 2:49 PM
> > > > > > > To: Xueming(Steven) Li <xuemingl@mellanox.com>
> > > > > > > Cc: Shahaf Shuler <shahafs@mellanox.com>; dev@dpdk.org
> > > > > > > Subject: Re: [PATCH v4 03/11] net/mlx5: support L3 VXLAN
> > > > > > > flow
> > > > > > >
> > > > > > > On Tue, Apr 17, 2018 at 11:14:28PM +0800, Xueming Li wrote:
> > > > > > > > This patch support L3 VXLAN, no inner L2 header comparing
> > > > > > > > to standard VXLAN protocol. L3 VXLAN using specific
> > > > > > > > overlay UDP destination port to discriminate against
> > > > > > > > standard VXLAN, FW has to be configured to support
> > > > > > > > it:
> > > > > > > > sudo mlxconfig -d <device> -y s IP_OVER_VXLAN_EN=1
> > > > > > > > sudo mlxconfig -d <device> -y s
> > > > > > > > IP_OVER_VXLAN_PORT=<port>
> > > > > > > >
> > > > > > > > Signed-off-by: Xueming Li <xuemingl@mellanox.com>
> > > > > > > > ---
> > > > > > > > drivers/net/mlx5/mlx5_flow.c | 4 +++-
> > > > > > > > 1 file changed, 3 insertions(+), 1 deletion(-)
> > > > > > > >
> > > > > > > > diff --git a/drivers/net/mlx5/mlx5_flow.c
> > > > > > > > b/drivers/net/mlx5/mlx5_flow.c index 771d5f14d..d7a921dff
> > > > > > > > 100644
> > > > > > > > --- a/drivers/net/mlx5/mlx5_flow.c
> > > > > > > > +++ b/drivers/net/mlx5/mlx5_flow.c
> > > > > > > > @@ -413,7 +413,9 @@ static const struct mlx5_flow_items mlx5_flow_items[] = {
> > > > > > > > .dst_sz = sizeof(struct ibv_flow_spec_tunnel),
> > > > > > > > },
> > > > > > > > [RTE_FLOW_ITEM_TYPE_VXLAN] = {
> > > > > > > > - .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH),
> > > > > > > > + .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
> > > > > > > > + RTE_FLOW_ITEM_TYPE_IPV4, /* For L3 VXLAN. */
> > > > > > > > + RTE_FLOW_ITEM_TYPE_IPV6), /* For L3 VXLAN. */
> > > > > > > > .actions = valid_actions,
> > > > > > > > .mask = &(const struct rte_flow_item_vxlan){
> > > > > > > > .vni = "\xff\xff\xff",
> > > > > > > > --
> > > > > > > > 2.13.3
> > > > > > >
> > > > > > > Such support must be under device parameter has it depends
> > > > > > > on the configuration of the firmware. If the firmware is
> > > > > > > not correctly configured the PMD must refuse
> > > > > such rule.
> > > > > > >
> > > > > > > Thanks,
> > > > > > >
> > > > > > > --
> > > > > > > Nélio Laranjeiro
> > > > > > > 6WIND
> > > > > >
> > > > > > Are you suggesting Verbs parameter? I'm afraid we can't have
> > > > > > it in short time, need new patch in later release when Verbs ready.
> > > > >
> > > > > Take a look at [1], this is what I mean.
> > > >
> > > > Enabling a new device parameter can't make L3 VXLAN packet get
> > > > received if fw configuration not set.
> > >
> > > So you expect than the user will enable a feature without reading the PMD documentation?
> > > If it is the case, the answer it pretty simple, it is the same as above, read the PMD
> documentation.
> > >
> > > > On the other hand, if fw continuation enabled and device parameter
> > > > not set, packet could be received but failed to create rule.
> > >
> > > Again a user using a NIC should read the documentation.
> >
> > If a user read the document, fw should be configured correctly to enable this feature.
>
> And a user which does not read this document must not be able to create rules the NIC cannot handle
> because the firmware is not configured.
>
> > > > I'm afraid that a device parameter will introduce complexity of
> > > > using this feature w/o real benefits.
> > >
> > > Add this missing device parameter and update accordingly the
> > > documentation, or wait for Verbs to add the missing query feature.
> > >
> > > If the firmware it not configured this rule must be refused, as
> > > there is no way in the PMD to know if the firmware is configured, it must rely on a device
> parameter.
> >
> > Let's keep the design simple, users know exactly what they are doing
> > and should not expecting such flow working by reading document.
>
> This is exactly the opposite, users never read documentation even today I've already spotted a new
> user to such documentation [1].
"So you expect than the user will enable a feature without reading the PMD documentation?
If it is the case, the answer it pretty simple, it is the same as above, read the PMD documentation.
Again a user using a NIC should read the documentation."
>
> For this same reason a functionality not enabled by default in the firmware must not be used by the
> PMD. No device parameter no feature.
Unlike other functionality, this feature related to supporting a new tunnel type, w/o fw configuration,
L3 VXLAN packet certainly be treated as normal packet, it doesn't hurt. How do you think?
>
> Add the device parameter and the according documentation.
>
> Regards,
>
> [1]
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdpdk.org%2Fml%2Farchives%2Fusers%2F
> 2018-
> April%2F003020.html&data=02%7C01%7Cxuemingl%40mellanox.com%7C7b417f2ace1044d6858a08d5a5e6c502%7Ca65297
> 1c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636597332927305548&sdata=7sUJ8okKx2yKTQz9nXfi%2B2cDwYVUbMa41glmez
> SYQyQ%3D&reserved=0
>
> --
> Nélio Laranjeiro
> 6WIND
next prev parent reply other threads:[~2018-04-19 11:53 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180410133415.189905-1-xuemingl%40mellanox.com>
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 00/14] mlx5 Rx tunnel offloading Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 00/11] " Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 " Xueming Li
2018-04-23 12:32 ` [dpdk-dev] [PATCH v6 " Xueming Li
2018-04-24 8:24 ` Nélio Laranjeiro
2018-04-24 8:25 ` Xueming(Steven) Li
2018-04-26 6:23 ` Shahaf Shuler
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 01/11] net/mlx5: support 16 hardware priorities Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 02/11] net/mlx5: support GRE tunnel flow Xueming Li
2018-04-23 12:55 ` Nélio Laranjeiro
2018-04-23 13:32 ` Xueming(Steven) Li
2018-04-23 13:46 ` Nélio Laranjeiro
2018-04-24 7:40 ` Xueming(Steven) Li
2018-04-24 8:21 ` Nélio Laranjeiro
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 03/11] net/mlx5: support L3 VXLAN flow Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 04/11] net/mlx5: support Rx tunnel type identification Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 05/11] net/mlx5: cleanup tunnel checksum offloads Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 06/11] net/mlx5: split flow RSS handling logic Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 07/11] net/mlx5: support tunnel RSS level Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 08/11] net/mlx5: add hardware flow debug dump Xueming Li
2018-04-26 10:09 ` Ferruh Yigit
2018-04-26 10:48 ` Shahaf Shuler
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 09/11] net/mlx5: introduce VXLAN-GPE tunnel type Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 10/11] net/mlx5: allow flow tunnel ID 0 with outer pattern Xueming Li
2018-04-23 12:33 ` [dpdk-dev] [PATCH v6 11/11] doc: update mlx5 guide on tunnel offloading Xueming Li
2018-04-26 11:00 ` Ferruh Yigit
2018-04-26 14:03 ` Xueming(Steven) Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 01/11] net/mlx5: support 16 hardware priorities Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 02/11] net/mlx5: support GRE tunnel flow Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 03/11] net/mlx5: support L3 VXLAN flow Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 04/11] net/mlx5: support Rx tunnel type identification Xueming Li
2018-04-23 7:40 ` Nélio Laranjeiro
2018-04-23 7:56 ` Xueming(Steven) Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 05/11] net/mlx5: cleanup tunnel checksum offloads Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 06/11] net/mlx5: split flow RSS handling logic Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 07/11] net/mlx5: support tunnel RSS level Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 08/11] net/mlx5: add hardware flow debug dump Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 09/11] net/mlx5: introduce VXLAN-GPE tunnel type Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 10/11] net/mlx5: allow flow tunnel ID 0 with outer pattern Xueming Li
2018-04-20 12:23 ` [dpdk-dev] [PATCH v5 11/11] doc: update mlx5 guide on tunnel offloading Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 01/11] net/mlx5: support 16 hardware priorities Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 02/11] net/mlx5: support GRE tunnel flow Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow Xueming Li
2018-04-18 6:48 ` Nélio Laranjeiro
2018-04-18 14:43 ` Xueming(Steven) Li
2018-04-18 15:08 ` Nélio Laranjeiro
2018-04-19 6:20 ` Xueming(Steven) Li
2018-04-19 6:55 ` Nélio Laranjeiro
2018-04-19 10:21 ` Xueming(Steven) Li
2018-04-19 11:15 ` Nélio Laranjeiro
2018-04-19 11:53 ` Xueming(Steven) Li [this message]
2018-04-19 12:18 ` Nélio Laranjeiro
2018-04-19 12:49 ` Xueming(Steven) Li
2018-04-19 13:40 ` Nélio Laranjeiro
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 04/11] net/mlx5: support Rx tunnel type identification Xueming Li
2018-04-18 6:50 ` Nélio Laranjeiro
2018-04-18 14:33 ` Xueming(Steven) Li
2018-04-18 15:06 ` Nélio Laranjeiro
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 05/11] net/mlx5: cleanup tunnel checksum offloads Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 06/11] net/mlx5: split flow RSS handling logic Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 07/11] net/mlx5: support tunnel RSS level Xueming Li
2018-04-18 6:55 ` Nélio Laranjeiro
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 08/11] net/mlx5: add hardware flow debug dump Xueming Li
2018-04-18 6:57 ` Nélio Laranjeiro
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 09/11] net/mlx5: introduce VXLAN-GPE tunnel type Xueming Li
2018-04-18 6:58 ` Nélio Laranjeiro
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 10/11] net/mlx5: allow flow tunnel ID 0 with outer pattern Xueming Li
2018-04-17 15:14 ` [dpdk-dev] [PATCH v4 11/11] doc: update mlx5 guide on tunnel offloading Xueming Li
2018-04-18 7:00 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 01/14] net/mlx5: support 16 hardware priorities Xueming Li
2018-04-13 11:58 ` Nélio Laranjeiro
2018-04-13 13:10 ` Xueming(Steven) Li
2018-04-13 13:46 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 02/14] net/mlx5: support GRE tunnel flow Xueming Li
2018-04-13 12:02 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 03/14] net/mlx5: support L3 VXLAN flow Xueming Li
2018-04-13 12:13 ` Nélio Laranjeiro
2018-04-13 13:51 ` Xueming(Steven) Li
2018-04-13 14:04 ` Xueming(Steven) Li
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 04/14] net/mlx5: support Rx tunnel type identification Xueming Li
2018-04-13 13:02 ` Nélio Laranjeiro
2018-04-14 12:57 ` Xueming(Steven) Li
2018-04-16 7:28 ` Nélio Laranjeiro
2018-04-16 8:05 ` Xueming(Steven) Li
2018-04-16 9:28 ` Adrien Mazarguil
2018-04-16 13:32 ` Xueming(Steven) Li
2018-04-16 13:47 ` Adrien Mazarguil
2018-04-16 15:27 ` Xueming(Steven) Li
2018-04-16 16:02 ` Adrien Mazarguil
2018-04-17 4:53 ` Xueming(Steven) Li
2018-04-17 7:20 ` Nélio Laranjeiro
2018-04-17 11:50 ` Xueming(Steven) Li
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 05/14] net/mlx5: cleanup tunnel checksum offloads Xueming Li
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 06/14] net/mlx5: split flow RSS handling logic Xueming Li
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 07/14] net/mlx5: support tunnel RSS level Xueming Li
2018-04-13 13:27 ` Nélio Laranjeiro
2018-04-14 10:12 ` Xueming(Steven) Li
2018-04-16 12:25 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 08/14] net/mlx5: add hardware flow debug dump Xueming Li
2018-04-13 13:29 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 09/14] net/mlx5: introduce VXLAN-GPE tunnel type Xueming Li
2018-04-13 13:32 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 10/14] net/mlx5: allow flow tunnel ID 0 with outer pattern Xueming Li
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 11/14] net/mlx5: support MPLS-in-GRE and MPLS-in-UDP Xueming Li
2018-04-13 13:37 ` Nélio Laranjeiro
2018-04-13 14:48 ` Xueming(Steven) Li
2018-04-13 14:55 ` Nélio Laranjeiro
2018-04-13 15:22 ` Xueming(Steven) Li
2018-04-16 8:14 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 12/14] doc: update mlx5 guide on tunnel offloading Xueming Li
2018-04-13 13:38 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 13/14] net/mlx5: fix invalid flow item check Xueming Li
2018-04-13 13:40 ` Nélio Laranjeiro
2018-04-13 11:20 ` [dpdk-dev] [PATCH v3 14/14] net/mlx5: support RSS configuration in isolated mode Xueming Li
2018-04-13 13:43 ` Nélio Laranjeiro
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