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From: Dave Dillow <dillowda@ornl•gov>
To: Roland Dreier <rdreier@cisco•com>
Cc: Amar Mudrankit <amar.mudrankit@qlogic•com>,
	Greg KH <greg@kroah•com>,
	general@lists•openfabrics.org, netdev@vger•kernel.org,
	Stephen Hemminger <shemminger@vyatta•com>,
	poornima.kamath@qlogic•com
Subject: Re: [ofa-general] Re: [PATCH v3 08/13] QLogic VNIC: sysfs interface implementation for the driver
Date: Thu, 5 Jun 2008 01:40:35 -0400	[thread overview]
Message-ID: <20080605054035.GA8059@ornl.gov> (raw)
In-Reply-To: <aday75k1pzh.fsf@cisco.com>

On Wed, Jun 04, 2008 at 09:10:26PM -0700, Roland Dreier wrote:
>  > Or so the theory goes. Unfortunately, you need all that information
>  > before you can create the connection. The configfs guys have thought
>  > about that, but not implemented yet:
>  > 
>  > > [Committable Items]
>  > > NOTE: Committable items are currently unimplemented.
> 
> The netconsole code in-tree has a separate "enabled" attribute that
> serves the purpose of "committing" something.  Seems good enough for SRP
> to use to me... the rename to commit idea seems cute but I don't see
> that it buys much beyond this.

But... But... I've got nothing.

I mentioned the enable attribute as a possible way to do it, though it is
counter to the configfs's documented preference.  But it's there, it works
perfectly well, and the configfs guys have had over 2 years to implement
their alternate commit feature.

That said, given that SRP's been using sysfs since it went in, is there
a reason to move to configfs other than it's the new preferred way to do
it? Given the desire to not break ABI's -- and IIRC sysfs was declared to
be under that unbrella -- wouldn't we have to at least carry both
interfaces for a while, assuming we can even get rid of the sysfs one?

Carrying both adds a bit of a interesting twist -- targets added using
the sysfs add-target wouldn't show up under configfs. It may not be a
real problem, but it could be a bit of a surprise to an admin.

I'm not opposed to configfs, but the more I think about it, it doesn't
seem to bring much to the table for the SRP initiator other more code
and data structure size.
-- 
Dave Dillow
National Center for Computational Science
Oak Ridge National Laboratory
(865) 241-6602 office

  reply	other threads:[~2008-06-05  5:40 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-29  9:53 [PATCH v3 00/13] QLogic VNIC Driver Ramachandra K
2008-05-29  9:54 ` [ofa-general] [PATCH v3 01/13] QLogic VNIC: Driver - netdev implementation Ramachandra K
2008-05-29 17:27   ` [ofa-general] " Stephen Hemminger
2008-06-03 12:14     ` Ramachandra K
2008-06-03 17:51       ` Stephen Hemminger
2008-05-29  9:54 ` [ofa-general] [PATCH v3 02/13] QLogic VNIC: Netpath - abstraction of connection to EVIC/VEx Ramachandra K
2008-05-29  9:55 ` [ofa-general] [PATCH v3 03/13] QLogic VNIC: Implementation of communication protocol with EVIC/VEx Ramachandra K
2008-05-29  9:55 ` [ofa-general] [PATCH v3 04/13] QLogic VNIC: Implementation of Control path of communication protocol Ramachandra K
2008-05-29  9:56 ` [ofa-general] [PATCH v3 05/13] QLogic VNIC: Implementation of Data " Ramachandra K
2008-05-29  9:56 ` [ofa-general] [PATCH v3 06/13] QLogic VNIC: IB core stack interaction Ramachandra K
2008-05-29  9:57 ` [ofa-general] [PATCH v3 07/13] QLogic VNIC: Handling configurable parameters of the driver Ramachandra K
2008-05-29  9:57 ` [ofa-general] [PATCH v3 08/13] QLogic VNIC: sysfs interface implementation for " Ramachandra K
2008-05-29 17:30   ` [ofa-general] " Stephen Hemminger
2008-05-29 17:48     ` Greg KH
2008-06-01  5:46       ` Roland Dreier
2008-06-03 12:24         ` [ofa-general] " Ramachandra K
2008-06-03 15:10           ` Roland Dreier
2008-06-03 18:25       ` Amar Mudrankit
2008-06-03 18:30         ` Greg KH
2008-06-03 18:45         ` David Dillow
2008-06-05  4:10           ` Roland Dreier
2008-06-05  5:40             ` Dave Dillow [this message]
2008-06-05 16:38               ` Roland Dreier
2008-06-05 17:01                 ` Stephen Hemminger
2008-06-05 17:32                   ` Patrick McHardy
2008-06-05 20:47                     ` Roland Dreier
2008-06-05 22:54                       ` Patrick McHardy
2008-06-05 17:54                 ` David Dillow
2008-05-29  9:58 ` [ofa-general] [PATCH v3 09/13] QLogic VNIC: IB Multicast for Ethernet broadcast/multicast Ramachandra K
2008-05-29  9:58 ` [ofa-general] [PATCH v3 10/13] QLogic VNIC: Driver Statistics collection Ramachandra K
2008-05-29  9:59 ` [PATCH v3 11/13] QLogic VNIC: Driver utility file - implements various utility macros Ramachandra K
2008-05-29  9:59 ` [ofa-general] [PATCH v3 12/13] QLogic VNIC: Driver Kconfig and Makefile Ramachandra K
2008-05-29 10:00 ` [ofa-general] [PATCH v3 13/13] QLogic VNIC: Modifications to IB " Ramachandra K

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