From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 625D61BE7B for ; Wed, 4 Jul 2018 19:36:34 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Jul 2018 10:36:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,306,1526367600"; d="scan'208";a="70104203" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.83]) ([10.237.221.83]) by orsmga001.jf.intel.com with ESMTP; 04 Jul 2018 10:36:30 -0700 To: Pavan Nikhilesh , jerin.jacob@caviumnetworks.com, santosh.shukla@caviumnetworks.com, rkudurumalla@caviumnetworks.com Cc: dev@dpdk.org, "Kudurumalla, Rakesh" , Shahaf Shuler , Andrew Rybchenko , Olivier MATZ References: <20180701164637.978-1-pbhagavatula@caviumnetworks.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.0 MIME-Version: 1.0 In-Reply-To: <20180701164637.978-1-pbhagavatula@caviumnetworks.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH] net/thunderx: add support for Rx VLAN offload X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jul 2018 17:36:36 -0000 On 7/1/2018 5:46 PM, Pavan Nikhilesh wrote: > From: "Kudurumalla, Rakesh" > > This feature is used to offload stripping of vlan header from recevied > packets and update vlan_tci field in mbuf when > DEV_RX_OFFLOAD_VLAN_STRIP & ETH_VLAN_STRIP_MASK flag is set. > > Signed-off-by: Rakesh Kudurumalla > Signed-off-by: Pavan Nikhilesh > --- > drivers/net/thunderx/base/nicvf_hw.c | 1 + > drivers/net/thunderx/nicvf_ethdev.c | 59 +++++++++++++++++------ > drivers/net/thunderx/nicvf_rxtx.c | 70 ++++++++++++++++++++++++---- > drivers/net/thunderx/nicvf_rxtx.h | 15 ++++-- > drivers/net/thunderx/nicvf_struct.h | 1 + In thunderx.ini, "VLAN offload" already marked as P(Partially) is it still partially? Why? <...> > @@ -1590,9 +1595,9 @@ nicvf_vf_start(struct rte_eth_dev *dev, struct nicvf *nic, uint32_t rbdrsz) > nic->rbdr->tail, nb_rbdr_desc, nic->vf_id); > > /* Configure VLAN Strip */ > - vlan_strip = !!(dev->data->dev_conf.rxmode.offloads & > - DEV_RX_OFFLOAD_VLAN_STRIP); > - nicvf_vlan_hw_strip(nic, vlan_strip); > + mask = ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK | > + ETH_VLAN_EXTEND_MASK; You don't need anything more than ETH_VLAN_STRIP_MASK but agreed no issue add more if you prefer. > + ret = nicvf_vlan_offload_config(dev, mask); > > /* Based on the packet type(IPv4 or IPv6), the nicvf HW aligns L3 data > * to the 64bit memory address. > @@ -1983,6 +1988,7 @@ static const struct eth_dev_ops nicvf_eth_dev_ops = { > .dev_infos_get = nicvf_dev_info_get, > .dev_supported_ptypes_get = nicvf_dev_supported_ptypes_get, > .mtu_set = nicvf_dev_set_mtu, > + .vlan_offload_set = nicvf_vlan_offload_set, Not related to this patch but I believe this name 'vlan_offload_set' is confusing, it enable/disable VLAN related config: - vlan strip offload - vlan filtering package (drop/accept specific vlans) - double vlan feature (not offload if I am not missing anything) We can think about a more proper name later... Also rte_eth_dev_set_vlan_offload() API may have a defect, it seems not taking capability flags into account, cc'ed Shahaf and Andrew for information. And I have a question about DEV_TX_OFFLOAD_VLAN_INSERT, perhaps goes to Olivier, if DEV_TX_OFFLOAD_VLAN_INSERT enabled what is the correct way to provide vlan_tci to insert? And do we need something like PKT_RX_VLAN_INSERT and use mbuf->vlan_tci value to have the ability to insert VLAN to some packets? <...> > +static int > +nicvf_vlan_offload_set(struct rte_eth_dev *dev, int mask) > +{ > + nicvf_vlan_offload_config(dev, mask); Don't you need to change rx_pkt_burst function according request here. Like if driver was using nicvf_recv_pkts_vlan_strip() and application disabled vlan_strip, what will happen? <...> > +uint16_t __hot > +nicvf_recv_pkts_vlan_strip(void *rx_queue, struct rte_mbuf **rx_pkts, > + uint16_t nb_pkts) > +{ > + return nicvf_recv_pkts(rx_queue, rx_pkts, nb_pkts, > + NICVF_RX_OFFLOAD_NONE | NICVF_RX_OFFLOAD_VLAN_STRIP); Why do you OR NICVF_RX_OFFLOAD_NONE, this cause zeroing the pkt->ol_flags which will be overriten because of NICVF_RX_OFFLOAD_VLAN_STRIP already?