netdev - Re: [PATCH]: ps3: gigabit ethernet driver for PS3

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Date:	Fri, 15 Jun 2007 14:18:34 -0400
From:	Dan Williams <dcbw@...hat.com>
To:	Geoff Levand <geoffrey.levand@...sony.com>
Cc:	Jeff Garzik <jeff@...zik.org>,
	MOKUNO Masakazu <mokuno@...sony.co.jp>, netdev@...r.kernel.org,
	Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com>,
	davem@...emloft.net
Subject: Re: [PATCH]: ps3: gigabit ethernet driver for PS3

On Fri, 2007-06-15 at 10:16 -0700, Geoff Levand wrote:
> Jeff Garzik wrote:
> > MOKUNO Masakazu wrote:
> >> +config GELIC_NET
> >> +	tristate "PS3 Gigabit Ethernet driver"
> >> +	depends on PPC_PS3
> >> +	help
> >> +	  This driver supports the Gigabit Ethernet device on the
> >> +	  PS3 game console.
> >> +
> >> +	  To compile this driver as a module, choose M here: the
> >> +	  module will be called ps3_gelic.
> >> +
> >>  config GIANFAR
> >>  	tristate "Gianfar Ethernet"
> >>  	depends on 85xx || 83xx || PPC_86xx
> >> --- a/drivers/net/Makefile
> >> +++ b/drivers/net/Makefile
> >> @@ -60,6 +60,8 @@ obj-$(CONFIG_TIGON3) += tg3.o
> >>  obj-$(CONFIG_BNX2) += bnx2.o
> >>  spidernet-y += spider_net.o spider_net_ethtool.o
> >>  obj-$(CONFIG_SPIDER_NET) += spidernet.o sungem_phy.o
> >> +obj-$(CONFIG_GELIC_NET) += ps3_gelic.o
> >> +ps3_gelic-objs += gelic_net.o
> >>  obj-$(CONFIG_TC35815) += tc35815.o
> >>  obj-$(CONFIG_SKGE) += skge.o
> >>  obj-$(CONFIG_SKY2) += sky2.o
> > 
> > How about ps3_gige for the driver name.  Ditto DaveM's comments about 
> > cleanups here.
> 
> Hi Jeff.  
> 
> Based on your comments and those from Dave, I feel I need to explain a
> little about our system and what we plan for the network support.
> 
> First about the name.  The name 'gelic' comes from the underlying
> device's name.  The name 'gelic' is already a well known in public
> to be the PS3's network device (try google), so I think ps3_gelic
> is a good name to use here.
> 
> Regarding the device, Mokuno-san already mentioned it, but this
> is a virtual device which supports both Ether and wireless, so
> it is more that just an Ethernet device (I think we can change
> the Kconfig text to be more accurate).
> 
> Now, about the driver.  We have arranged the driver so that
> the wireless support can be enabled by a config option.  So
> when CONFIG_GELIC_WIRELESS=n you get ps3_gelic.ko with just
> Ether support, and when CONFIG_GELIC_WIRELESS=y, you get
> ps3_gelic.ko with both Ether and wireless support.  So in
> the makefile we would like to have this:
> 
>   obj-$(CONFIG_GELIC_NET) += ps3_gelic.o
>   gelic-$(CONFIG_GELIC_WIRELESS) += gelic_wireless.o
>   ps3_gelic-objs += gelic_net.o $(gelic-y)
> 
> This all seems fine, but what is causing us trouble is that
> during the review of the wireless part Dan Williams made many
> non-trivial recommendations, and so we decided we need to re-work

sorry :)

> the wireless and it won't be ready for 2.6.23. So, to avoid having 
> to either change module names, or change file names when we submit
> the wireless part for 2.6.24, we would like to have this for 2.6.23:
> 
>   obj-$(CONFIG_GELIC_NET) += ps3_gelic.o
>   ps3_gelic-objs += gelic_net.o
> 
> Does it make sense?  If you have a better idea, please let us know.
> 
> -Geoff
> 
> -
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