From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: Re: PMD architecture related to code Date: Sat, 14 Mar 2015 07:52:09 +0000 Message-ID: References: <20150313145149.GB11352@bricha3-MOBL3> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Cc: dev-VfR2kkLFssw@public.gmane.org, dev-bounces-VfR2kkLFssw@public.gmane.org To: Return-path: In-Reply-To: <20150313145149.GB11352@bricha3-MOBL3> Content-Language: en-US List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Thank for replay Bruce , I am looking code related to NIC to DMA mapping and DMA to user space . Suggestions are welcome . Regards, Kuldeep -----Original Message----- From: Bruce Richardson [mailto:bruce.richardson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org] Sent: Friday, March 13, 2015 8:22 PM To: Kuldeep Samasi (WT01 - Global Media & Telecom) Cc: dev-VfR2kkLFssw@public.gmane.org; dev-bounces-VfR2kkLFssw@public.gmane.org Subject: Re: [dpdk-dev] PMD architecture related to code On Fri, Mar 13, 2015 at 04:45:47AM +0000, kuldeep.samasi-uxC5H9eHYlcAvxtiuMwx3w@public.gmane.org wrote: > Hi Developer Team , > > > I am trying add new functionality on Poll Mode driver . > But I don't have idea how packets are coming to kernel mode and going to = user space and doing packet processing DPDK . The packets never go into the kernel when DPDK is in use. Instead the DPDK = PMD configures the NIC to DMA the packets directly into userspace buffers. = Hence the high performance. /Bruce > > I need suggestion on which file the PMD architecture defined . > > > > Regards , > Kuldeep > The information contained in this electronic message and any > attachments to this message are intended for the exclusive use of the > addressee(s) and may contain proprietary, confidential or privileged > information. If you are not the intended recipient, you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately and destroy all copies of this message and any > attachments. WARNING: Computer viruses can be transmitted via email. > The recipient should check this email and any attachments for the > presence of viruses. The company accepts no liability for any damage > caused by any virus transmitted by this email. www.wipro.com The information contained in this electronic message and any attachments to= this message are intended for the exclusive use of the addressee(s) and ma= y contain proprietary, confidential or privileged information. If you are n= ot the intended recipient, you should not disseminate, distribute or copy t= his e-mail. Please notify the sender immediately and destroy all copies of = this message and any attachments. WARNING: Computer viruses can be transmit= ted via email. The recipient should check this email and any attachments fo= r the presence of viruses. The company accepts no liability for any damage = caused by any virus transmitted by this email. www.wipro.com