netdev - Re: [PATCH] net: group FCoE related feature flags

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Date:	Mon, 09 May 2011 21:17:59 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Yi Zou <yi.zou@...el.com>
Cc:	netdev@...r.kernel.org, mirq-linux@...e.qmqm.pl,
	jeffrey.t.kirsher@...el.com, devel@...n-fcoe.org
Subject: Re: [PATCH] net: group FCoE related feature flags

On Mon, 2011-05-09 at 12:24 -0700, Yi Zou wrote:
> Michał Mirosław's patch (http://patchwork.ozlabs.org/patch/94421/) fixes the
> issue (http://patchwork.ozlabs.org/patch/94188/) about not populating FCoE related
> flags correctly on vlan devices. However, only NETIF_F_FCOE_CRC is part of the
> NETIF_F_ALL_TX_OFFLOADS right now, where weed NETIF_F_FCOE_MTU and NETIF_F_FSO
> as well.
> 
> Therefore, add NETIF_F_ALL_FCOE to indicate feature flags used by FCoE TX offloads.
> These include NETIF_F_FCOE_CRC, NETIF_F_FCOE_MTU, and NETIF_F_FSO. They are not part
> of the NETIF_F_ALL_TX_OFFLOADS. This would eventually make sure all FCoE needed
> flags are populated properly to vlan devices.
> 
> Signed-off-by: Yi Zou <yi.zou@...el.com>
> ---
> 
>  include/linux/netdevice.h |    6 +++++-
>  1 files changed, 5 insertions(+), 1 deletions(-)
> 
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index e7244ed..40b3df8 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1097,10 +1097,14 @@ struct net_device {
>  
>  #define NETIF_F_ALL_TSO 	(NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)
>  
> +#define NETIF_F_ALL_FCOE	(NETIF_F_FCOE_CRC | NETIF_F_FCOE_MTU | \
> +				 NETIF_F_UFO)

UFO?  Surely FSO, like you wrote in the commit message...

Ben.

>  #define NETIF_F_ALL_TX_OFFLOADS	(NETIF_F_ALL_CSUM | NETIF_F_SG | \
>  				 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
>  				 NETIF_F_HIGHDMA | \
> -				 NETIF_F_SCTP_CSUM | NETIF_F_FCOE_CRC)
> +				 NETIF_F_SCTP_CSUM | \
> +				 NETIF_F_ALL_FCOE)
>  
>  	/*
>  	 * If one device supports one of these features, then enable them
> 
> --
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-- 
Ben Hutchings, Senior Software Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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