From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roopa Prabhu Subject: Re: [RFC PATCH 1/4] rtnetlink: new flag NLM_F_HW_OFFLOAD to indicate kernel object offload to hardware Date: Sun, 23 Nov 2014 07:00:02 -0800 Message-ID: <5471F672.7060109@cumulusnetworks.com> References: <1416610170-21224-2-git-send-email-roopa@cumulusnetworks.com> <5470ED34.4090809@cogentembedded.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: jiri@resnulli.us, sfeldma@gmail.com, jhs@mojatatu.com, bcrl@kvack.org, tgraf@suug.ch, 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 To: Sergei Shtylyov Return-path: Received: from ext3.cumulusnetworks.com ([198.211.106.187]:59699 "EHLO ext3.cumulusnetworks.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751175AbaKWPAI (ORCPT ); Sun, 23 Nov 2014 10:00:08 -0500 In-Reply-To: <5470ED34.4090809@cogentembedded.com> Sender: netdev-owner@vger.kernel.org List-ID: On 11/22/14, 12:08 PM, Sergei Shtylyov wrote: > Hello. > > On 11/22/2014 1:49 AM, roopa@cumulusnetworks.com wrote: > >> From: Roopa Prabhu > >> This patch adds new flags in netlink header nlmsg_flags to signal if the >> message is for the kernel, hw or both. > >> This can be used to indicate hw offload for all kind of objects >> routes, fdb entries, neighs, link objects like bonds, bridges, vxlan. > >> Adding it in the header makes it possible to use it accross all >> objects and >> across all messages (sets/gets/deletes). > >> Other alternative to this is a per kernel object netlink attribute/flag. >> But that leads to duplicating the attribute in different subsystems. > >> Signed-off-by: Roopa Prabhu >> --- >> include/uapi/linux/netlink.h | 2 ++ >> 1 file changed, 2 insertions(+) > >> 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 */ > > I don't think you really meant double '+'. certainly not. will fix it. thanks. > >> +#define NLM_F_HW_OFFLOAD 64 /* offload this msg to hw */ > [...] > > WBR, Sergei > > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html