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From: Jamal Hadi Salim <jhs@mojatatu.com>
To: John Fastabend <john.r.fastabend@intel.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>,
	bhutchings@solarflare.com, roprabhu@cisco.com,
	netdev@vger.kernel.org, mst@redhat.com, chrisw@redhat.com,
	davem@davemloft.net, gregory.v.rose@intel.com,
	kvm@vger.kernel.org, sri@us.ibm.com, kernel@wantstofly.org
Subject: Re: [RFC PATCH v0 1/2] net: bridge: propagate FDB table into hardware
Date: Thu, 01 Mar 2012 08:36:20 -0500	[thread overview]
Message-ID: <1330608980.6944.27.camel@mojatatu> (raw)
In-Reply-To: <4F4E6C44.9070502@intel.com>

On Wed, 2012-02-29 at 10:19 -0800, John Fastabend wrote:

> > 
> > I want to see a unified API so that user space control applications (RSTP, TRILL?)
> > can use one set of netlink calls for both software bridge and hardware offloaded
> > bridges.  Does this proposal meet that requirement?
> > 

I dont see any issues with those requirements being met.

> Jamal, so why do "They have to be different calls"? I'm not so sure anymore...
> moving to RTM_FDB_XXXENTRY saved some refactoring in the bridge module but that
> is just cosmetic.

I may not want to use the s/ware bridge i.e I may want to use h/ware
bridge. I may want to use both. So there are 3 variations there. You
need at least 1.5 bits to represent them if you are going to use the
same interface. There may be features in either h/ware but not in
s/ware and vice-versa. 
A single interface with flags which say this applies to hware:sware:both
would be good, but it may be harder to achieve - thats why i suggested
they be different.

cheers,
jamal

  reply	other threads:[~2012-03-01 13:36 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-09  3:22 [RFC PATCH v0 1/2] net: bridge: propagate FDB table into hardware John Fastabend
2012-02-09  3:22 ` [RFC PATCH v0 2/2] ixgbe: add NETIF_F_HW_FDB to supported flags John Fastabend
2012-02-09  4:36 ` [RFC PATCH v0 1/2] net: bridge: propagate FDB table into hardware Stephen Hemminger
2012-02-09 17:36   ` John Fastabend
2012-02-09 17:40     ` Stephen Hemminger
2012-02-09 17:52       ` John Fastabend
2012-02-09 21:11         ` jamal
2012-02-10  2:14           ` John Fastabend
2012-02-10  4:14             ` John Fastabend
2012-02-10 15:18               ` jamal
2012-02-10 16:39                 ` Stephen Hemminger
2012-02-13 13:54                   ` jamal
2012-02-13 15:13                 ` John Fastabend
2012-02-14 13:18                   ` jamal
2012-02-14 18:57                     ` John Fastabend
2012-02-14 19:05                       ` Stephen Hemminger
2012-02-14 19:08                         ` John Fastabend
2012-02-15 14:10                       ` Jamal Hadi Salim
2012-02-16  1:26                         ` John Fastabend
2012-02-17 14:28                           ` jamal
2012-02-17 17:10                             ` John Fastabend
2012-02-18 12:41                               ` jamal
2012-02-29  4:40                                 ` John Fastabend
2012-02-29  5:14                                   ` John Fastabend
2012-02-29 13:57                                     ` Jamal Hadi Salim
2012-02-29 13:56                                   ` Jamal Hadi Salim
2012-02-29 17:25                                     ` John Fastabend
2012-02-29 17:52                                       ` Stephen Hemminger
2012-02-29 18:19                                         ` John Fastabend
2012-03-01 13:36                                           ` Jamal Hadi Salim [this message]
2012-03-01 22:17                                             ` John Fastabend
2012-03-02 13:20                                               ` jamal
2012-03-05 17:00                                             ` Lennert Buytenhek
2012-03-01 13:24                                       ` Jamal Hadi Salim
2012-03-01 14:14                                       ` Michael S. Tsirkin
2012-03-01 22:10                                         ` John Fastabend
2012-03-05 16:53                                   ` Lennert Buytenhek
2012-03-06  3:45                                     ` John Fastabend
2012-03-06 14:15                                       ` Lennert Buytenhek
2012-03-06 13:42                                     ` jamal
2012-03-06 14:09                                       ` Lennert Buytenhek
2012-03-07 14:11                                         ` Jamal Hadi Salim
2012-03-12  8:48                                           ` Lennert Buytenhek
2012-03-13 13:52                                             ` Jamal Hadi Salim
2012-02-16  3:58                 ` Ben Hutchings
2012-02-16 19:18                   ` Shradha Shah
2012-02-17 14:37                   ` jamal
2012-02-10 13:45     ` Roopa Prabhu
2012-02-09 18:14 ` Sridhar Samudrala
2012-02-09 20:30   ` John Fastabend
2012-02-10  0:39     ` Sridhar Samudrala
2012-02-10  0:51       ` John Fastabend

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