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From: Zhe Tao <zhe.tao@intel.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, jingjing.wu@intel.com
Subject: Re: [dpdk-dev] [PATCH v12 1/2] i40e: support floating VEB config
Date: Mon, 27 Jun 2016 04:28:35 +0800	[thread overview]
Message-ID: <20160626202835.GB99425@intel.com> (raw)
In-Reply-To: <576D1606.4090901@intel.com>

On Fri, Jun 24, 2016 at 12:14:14PM +0100, Ferruh Yigit wrote:
> Hi Zhe,
> 
> On 6/24/2016 9:29 AM, Zhe Tao wrote:
> > Add the new floating VEB related arguments option in the devarg.
> > Using this parameter, all the applications can decide whether to use legacy
> > VEB/VEPA or floating VEB.
> > To enable this feature, the user should pass a devargs parameter to the
> > EAL like "-w 84:00.0,enable_floating_veb=1", and the application will
> > tell PMD whether to use the floating VEB feature or not.
> Is providing the enable_floating_veb=1 devarg enough, or should
> application call an driver API to enable this feature, if so documenting
> what application needs to do helps app developers.
yes only provide the devarg is enough, the APP don't need to modify.
> 
> > Once the floating VEB feature is enabled, all the VFs created by
> > this PF device are connected to the floating VEB.
> Technically there can be multiple floating VEBs, right? And with this
> param only one floating VEB created and all VFs connected to it. Is
> there any use case to create multiple VEBs with selective VFs connected
> to them?
discuss this feature internally with Walter and FAE team, have an agreement
for this release we only implement one floating VEB.
> 
> > 
> > Also user can specify which VF need to connect to this floating veb using
> > "floating_veb_list".
> > Like "-w 84:00.0,enable_floating_veb=1,floating_veb_list=1/3-4", means VF1, VF3,
> > VF4 connect to the floating VEB, other VFs connect to the legacy VEB.The "/"
> > is used for delimiter of the floating VEB list.
> Is there a use case to change VF VEB connection on runtime?
maybe there is a case, but from the customer requirement, we only support the static
configuration for floating VEB.

> 
> > 
> > All the VEB/VEPA concepts are not specific for FVL, they are defined in
> > the 802.1Qbg spec.
> > 
> > But for floating VEB, it has two major difference.
> > 1. doesn't has a up link connection which means
> > the traffic cannot go to outside world.
> > 2. doesn't need to connect to the physical port which means
> > when the physical link is down the floating VEB can still works
> > fine.
> > 
> > Signed-off-by: Zhe Tao <zhe.tao@intel.com>
> > ---
> 
> ...
> 
> >  
> > +static int vf_floating_veb_handler(__rte_unused const char *key,
> What about floating_veb_list_handler, to be consistent with argument name?
> 
> > +				   const char *floating_veb_value,
> > +				   void *opaque)
> > +{
> > +	int idx = 0;
> > +	bool floating_veb; /* The flag to use the floating VEB */
> > +	/* The floating enable flag for the specific VF */
> > +	bool vf_floating_veb[I40E_MAX_VF];
> what about floating_veb_list, to be consistent with argument name?
> 
> >  };
> >  
> >  enum pending_msg {
> > 
All the comments in the code is great, I changed the code according to your
comments,
thanks again
Zhe 

  reply	other threads:[~2016-06-27  4:45 UTC|newest]

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-21  7:24 [dpdk-dev] [PATCH 0/2] Add floating VEB support for i40e Zhe Tao
2016-01-21  7:24 ` [dpdk-dev] PATCH 1/2] i40e: support floating VEB config Zhe Tao
2016-01-21  7:29   ` David Marchand
2016-01-21  7:53     ` Vincent JARDIN
2016-02-03  8:53   ` Xu, Qian Q
2016-02-23  9:13   ` [dpdk-dev] [PATCH 0/2 v2] i40e: Add floating VEB support for i40e Zhe Tao
2016-02-23  9:13     ` [dpdk-dev] [PATCH 1/2 v2] i40e: support floating VEB config Zhe Tao
2016-02-25  0:55       ` Wu, Jingjing
2016-02-23  9:13     ` [dpdk-dev] [PATCH 2/2 v2] i40e: Add floating VEB support in i40e Zhe Tao
2016-02-25  1:15       ` Wu, Jingjing
2016-02-25  6:31     ` [dpdk-dev] [PATCH 0/2 v3] i40e: Add floating VEB support for i40e Zhe Tao
2016-02-25  6:31       ` [dpdk-dev] [PATCH 1/2 v3] i40e: support floating VEB config Zhe Tao
2016-02-25  6:31       ` [dpdk-dev] [PATCH 2/2 v3] i40e: Add floating VEB support in i40e Zhe Tao
2016-03-02  2:31         ` Xu, Qian Q
2016-03-02  8:08       ` [dpdk-dev] [PATCH 0/2 v4] i40e: Add floating VEB support for i40e Zhe Tao
2016-03-02  8:08         ` [dpdk-dev] [PATCH 1/2 v4] i40e: support floating VEB config Zhe Tao
2016-03-02  8:08         ` [dpdk-dev] [PATCH 2/2 v4] i40e: Add floating VEB support in i40e Zhe Tao
2016-03-23 12:27         ` [dpdk-dev] [PATCH 0/2 v5] i40e: Add floating VEB support for i40e Zhe Tao
2016-03-23 12:27           ` [dpdk-dev] [PATCH 1/2 v5] i40e: support floating VEB config Zhe Tao
2016-03-23 12:51             ` Thomas Monjalon
2016-03-24  2:31               ` Zhe Tao
2016-03-23 12:27           ` [dpdk-dev] [PATCH 2/2 v5] i40e: Add floating VEB support in i40e Zhe Tao
2016-03-24 10:48           ` [dpdk-dev] [PATCH 0/2 v6] i40e: Add floating VEB support for i40e Zhe Tao
2016-03-24 10:48             ` [dpdk-dev] [PATCH 1/2 v6] i40e: support floating VEB config Zhe Tao
2016-03-24 10:48             ` [dpdk-dev] [PATCH 2/2 v6] i40e: Add floating VEB support in i40e Zhe Tao
2016-03-25  8:41             ` [dpdk-dev] [PATCH 0/3 v7] i40e: Add floating VEB support for i40e Zhe Tao
2016-03-25  8:41               ` [dpdk-dev] [PATCH 1/3 v7] i40e: support floating VEB config Zhe Tao
2016-03-28  2:23                 ` Xu, Qian Q
2016-03-25  8:41               ` [dpdk-dev] [PATCH 2/3 v7] i40e: Add floating VEB support in i40e Zhe Tao
2016-04-20  7:31                 ` Wu, Jingjing
2016-03-25  8:42               ` [dpdk-dev] [PATCH 3/3 v7] i40e: Add global reset support for i40e Zhe Tao
2016-04-20 10:15                 ` Wu, Jingjing
2016-03-25 15:28               ` [dpdk-dev] [PATCH 0/3 v7] i40e: Add floating VEB " Bruce Richardson
2016-04-20 14:22               ` Bruce Richardson
2016-05-24 17:28               ` [dpdk-dev] [PATCH v8 0/3] " Zhe Tao
2016-05-24 17:28                 ` [dpdk-dev] [PATCH v8 1/3] i40e: support floating VEB config Zhe Tao
2016-06-09 15:50                   ` Bruce Richardson
2016-05-24 17:28                 ` [dpdk-dev] [PATCH v8 2/3] i40e: Add floating VEB support in i40e Zhe Tao
2016-06-09 15:55                   ` Bruce Richardson
2016-05-24 17:28                 ` [dpdk-dev] [PATCH v8 3/3] i40e: add floating VEB extension support Zhe Tao
2016-05-30 15:49                   ` Peng, Yuan
2016-06-09 15:57                   ` Bruce Richardson
2016-05-24 19:22                 ` [dpdk-dev] [PATCH v8 0/3] i40e: Add floating VEB support for i40e Stephen Hemminger
2016-05-25 10:05                   ` Thomas Monjalon
2016-05-31  2:25                 ` Wu, Jingjing
2016-06-13  6:45                 ` [dpdk-dev] [PATCH v9 0/3] i40e: add " Zhe Tao
2016-06-13  6:45                   ` [dpdk-dev] [PATCH v9 1/3] i40e: support floating VEB config Zhe Tao
2016-06-13  6:45                   ` [dpdk-dev] [PATCH v9 2/3] i40e: add floating VEB support in i40e Zhe Tao
2016-06-13  6:45                   ` [dpdk-dev] [PATCH v9 3/3] i40e: add floating VEB extension support Zhe Tao
2016-06-13  8:02                   ` [dpdk-dev] [PATCH v10 0/3] i40e: add floating VEB support for i40e Zhe Tao
2016-06-13  8:02                     ` [dpdk-dev] [PATCH v10 1/3] i40e: support floating VEB config Zhe Tao
2016-06-13  8:02                     ` [dpdk-dev] [PATCH v10 2/3] i40e: add floating VEB support in i40e Zhe Tao
2016-06-13  8:02                     ` [dpdk-dev] [PATCH v10 3/3] i40e: add floating VEB extension support Zhe Tao
2016-06-14  3:38                     ` [dpdk-dev] [PATCH v10 0/3] i40e: add floating VEB support for i40e Wu, Jingjing
2016-06-14  5:57                     ` [dpdk-dev] [PATCH v11 " Zhe Tao
2016-06-13 21:44                       ` Zhe Tao
2016-06-14  5:57                       ` [dpdk-dev] [PATCH v11 1/3] i40e: support floating VEB config Zhe Tao
2016-06-14  5:57                       ` [dpdk-dev] [PATCH v11 2/3] i40e: add floating VEB support in i40e Zhe Tao
2016-06-14  5:57                       ` [dpdk-dev] [PATCH v11 3/3] i40e: add floating VEB extension support Zhe Tao
2016-06-24  8:29                       ` [dpdk-dev] [PATCH v12 0/2] i40e: add floating VEB support for i40e Zhe Tao
2016-06-24  8:29                         ` [dpdk-dev] [PATCH v12 1/2] i40e: support floating VEB config Zhe Tao
2016-06-24  9:27                           ` Bruce Richardson
2016-06-24 11:14                           ` Ferruh Yigit
2016-06-26 20:28                             ` Zhe Tao [this message]
2016-06-24  8:29                         ` [dpdk-dev] [PATCH v12 2/2] i40e: add floating VEB support in i40e Zhe Tao
2016-06-27  5:12                         ` [dpdk-dev] [PATCH v13 0/2] i40e: add floating VEB support for i40e Zhe Tao
2016-06-27  5:12                           ` [dpdk-dev] [PATCH v13 1/2] i40e: support floating VEB config Zhe Tao
2016-06-27  5:12                           ` [dpdk-dev] [PATCH v13 2/2] i40e: add floating VEB support in i40e Zhe Tao
2016-06-27  7:20                           ` [dpdk-dev] [PATCH v14 0/2] i40e: add floating VEB support for i40e Zhe Tao
2016-06-27  7:20                             ` [dpdk-dev] [PATCH v14 1/2] i40e: support floating VEB config Zhe Tao
2016-06-27  7:20                             ` [dpdk-dev] [PATCH v14 2/2] i40e: add floating VEB support in i40e Zhe Tao
2016-06-27 13:22                             ` [dpdk-dev] [PATCH v14 0/2] i40e: add floating VEB support for i40e Ferruh Yigit
2016-06-29  9:42                             ` Bruce Richardson
2016-06-29 13:06                             ` [dpdk-dev] [PATCH v15 " Zhe Tao
2016-06-29 13:06                               ` [dpdk-dev] [PATCH v15 1/2] i40e: add floating VEB support Zhe Tao
2016-06-29 13:06                               ` [dpdk-dev] [PATCH v15 2/2] i40e: add device args to enable a floating VEB Zhe Tao
2016-06-29 13:47                                 ` Mcnamara, John
2016-06-29 14:22                                   ` Bruce Richardson
2016-01-21  7:24 ` [dpdk-dev] [PATCH 2/2] i40e: Add floating VEB support in i40e Zhe Tao

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