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From: Thomas Graf <tgraf@suug.ch>
To: roopa@cumulusnetworks.com
Cc: jiri@resnulli.us, sfeldma@gmail.com, jhs@mojatatu.com,
	bcrl@kvack.org, john.fastabend@gmail.com,
	stephen@networkplumber.org, linville@tuxdriver.com,
	nhorman@tuxdriver.com, nicolas.dichtel@6wind.com,
	vyasevic@redhat.com, f.fainelli@gmail.com,
	buytenh@wantstofly.org, aviadr@mellanox.com,
	netdev@vger.kernel.org, davem@davemloft.net,
	shrijeet@cumulusnetworks.com, gospo@cumulusnetworks.com
Subject: Re: [RFC PATCH 1/4] rtnetlink: new flag NLM_F_HW_OFFLOAD to indicate kernel object offload to hardware
Date: Fri, 21 Nov 2014 23:12:34 +0000	[thread overview]
Message-ID: <20141121231234.GA20810@casper.infradead.org> (raw)
In-Reply-To: <1416610170-21224-2-git-send-email-roopa@cumulusnetworks.com>

On 11/21/14 at 02:49pm, roopa@cumulusnetworks.com wrote:
> diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h
> index 1a85940..f78522d 100644
> --- a/include/uapi/linux/netlink.h
> +++ b/include/uapi/linux/netlink.h
> @@ -54,6 +54,8 @@ struct nlmsghdr {
>  #define NLM_F_ACK		4	/* Reply with ack, with zero or error code */
>  #define NLM_F_ECHO		8	/* Echo this request 		*/
>  #define NLM_F_DUMP_INTR		16	/* Dump was inconsistent due to sequence change */
> ++#define NLM_F_KERNEL       32      /* This msg is only for the kernel */
> +#define NLM_F_HW_OFFLOAD	64	/* offload this msg to hw */
>  
>  /* Modifiers to GET request */
>  #define NLM_F_ROOT	0x100	/* specify tree	root	*/

The NLM_F_ flag space applies to all Netlink messages including non
networking bits and is reserved for flags vital to the functioning
of the Netlink protocol itself. I suggest you move this to a
RTNETLINK specific flags space.

  reply	other threads:[~2014-11-21 23:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-21 22:49 [RFC PATCH 1/4] rtnetlink: new flag NLM_F_HW_OFFLOAD to indicate kernel object offload to hardware roopa
2014-11-21 23:12 ` Thomas Graf [this message]
2014-11-22  0:10   ` Roopa Prabhu
2014-11-22 12:29     ` Thomas Graf
2014-11-22 19:37       ` Roopa Prabhu
2014-11-22 22:03         ` Vincent JARDIN
2014-11-22 20:08 ` Sergei Shtylyov
2014-11-23 15:00   ` Roopa Prabhu

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