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 93C442F42 for ; Thu, 15 Nov 2018 02:36:32 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2018 17:36:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,234,1539673200"; d="scan'208";a="106354381" Received: from dpdk51.sh.intel.com ([10.67.110.190]) by fmsmga004.fm.intel.com with ESMTP; 14 Nov 2018 17:36:31 -0800 From: Qi Zhang To: ferruh.yigit@intel.com Cc: thomas@monjalon.net, dev@dpdk.org, xueqin.lin@intel.com, Qi Zhang Date: Thu, 15 Nov 2018 09:37:42 +0800 Message-Id: <20181115013742.117776-3-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20181115013742.117776-1-qi.z.zhang@intel.com> References: <20181105210823.38757-1-qi.z.zhang@intel.com> <20181115013742.117776-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [PATCH v4 2/2] net/pcap: enable data path for secondary 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: Thu, 15 Nov 2018 01:36:33 -0000 Private vdev was the way previously, when pdump developed, now with shared device mode on virtual devices, pcap data path in secondary is not working. When secondary adds a virtual device, related data transferred to primary and primary creates the device and shares device back with secondary. When pcap device created in primary, pcap handlers (pointers) are process local and they are not valid for secondary process. This breaks secondary. So we can't directly share the pcap handlers, but need to create a new set of handlers for secondary, that's what we done in this patch. Signed-off-by: Ferruh Yigit Signed-off-by: Qi Zhang --- drivers/net/pcap/rte_eth_pcap.c | 66 ++++++++++++++++++++++++++++++++++------- 1 file changed, 56 insertions(+), 10 deletions(-) diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c index c37cfbad5..9fd932772 100644 --- a/drivers/net/pcap/rte_eth_pcap.c +++ b/drivers/net/pcap/rte_eth_pcap.c @@ -77,6 +77,7 @@ struct pcap_tx_queue { struct pmd_internals { struct pcap_rx_queue rx_queue[RTE_PMD_PCAP_MAX_QUEUES]; struct pcap_tx_queue tx_queue[RTE_PMD_PCAP_MAX_QUEUES]; + char devargs[ETH_PCAP_ARG_MAXLEN]; struct ether_addr eth_addr; int if_index; int single_iface; @@ -968,6 +969,9 @@ pmd_init_internals(struct rte_vdev_device *vdev, */ (*eth_dev)->dev_ops = &ops; + strlcpy((*internals)->devargs, rte_vdev_device_args(vdev), + ETH_PCAP_ARG_MAXLEN); + return 0; } @@ -1147,7 +1151,8 @@ pmd_pcap_probe(struct rte_vdev_device *dev) struct rte_kvargs *kvlist; struct pmd_devargs pcaps = {0}; struct pmd_devargs dumpers = {0}; - struct rte_eth_dev *eth_dev; + struct rte_eth_dev *eth_dev = NULL; + struct pmd_internals *internal; int single_iface = 0; int ret; @@ -1164,16 +1169,18 @@ pmd_pcap_probe(struct rte_vdev_device *dev) PMD_LOG(ERR, "Failed to probe %s", name); return -1; } - /* TODO: request info from primary to set up Rx and Tx */ - eth_dev->dev_ops = &ops; - eth_dev->device = &dev->device; - rte_eth_dev_probing_finish(eth_dev); - return 0; - } - kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_arguments); - if (kvlist == NULL) - return -1; + internal = eth_dev->data->dev_private; + + kvlist = rte_kvargs_parse(internal->devargs, valid_arguments); + if (kvlist == NULL) + return -1; + } else { + kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), + valid_arguments); + if (kvlist == NULL) + return -1; + } /* * If iface argument is passed we open the NICs and use them for @@ -1238,6 +1245,45 @@ pmd_pcap_probe(struct rte_vdev_device *dev) goto free_kvlist; create_eth: + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + struct pmd_process_private *pp; + unsigned int i; + + internal = eth_dev->data->dev_private; + pp = (struct pmd_process_private *) + rte_zmalloc(NULL, + sizeof(struct pmd_process_private), + RTE_CACHE_LINE_SIZE); + + if (pp == NULL) { + PMD_LOG(ERR, + "Failed to allocate memory for process private"); + return -1; + } + + eth_dev->dev_ops = &ops; + eth_dev->device = &dev->device; + + /* setup process private */ + for (i = 0; i < pcaps.num_of_queue; i++) + pp->rx_pcap[i] = pcaps.queue[i].pcap; + + for (i = 0; i < dumpers.num_of_queue; i++) { + pp->tx_dumper[i] = dumpers.queue[i].dumper; + pp->tx_pcap[i] = dumpers.queue[i].pcap; + } + + eth_dev->process_private = pp; + eth_dev->rx_pkt_burst = eth_pcap_rx; + if (is_tx_pcap) + eth_dev->tx_pkt_burst = eth_pcap_tx_dumper; + else + eth_dev->tx_pkt_burst = eth_pcap_tx; + + rte_eth_dev_probing_finish(eth_dev); + return 0; + } + ret = eth_from_pcaps(dev, &pcaps, pcaps.num_of_queue, &dumpers, dumpers.num_of_queue, single_iface, is_tx_pcap); -- 2.13.6