From patchwork Wed Nov 14 19:56:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zhang X-Patchwork-Id: 48097 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 28A111B21A; Wed, 14 Nov 2018 20:55:41 +0100 (CET) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 5A1D71B200 for ; Wed, 14 Nov 2018 20:55:36 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Nov 2018 11:55:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,233,1539673200"; d="scan'208";a="96317765" Received: from dpdk51.sh.intel.com ([10.67.110.190]) by FMSMGA003.fm.intel.com with ESMTP; 14 Nov 2018 11:55:34 -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 03:56:46 +0800 Message-Id: <20181114195647.196648-2-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20181114195647.196648-1-qi.z.zhang@intel.com> References: <20181105210823.38757-1-qi.z.zhang@intel.com> <20181114195647.196648-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [PATCH v3 1/2] net/pcap: move pcap handler to process private 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This is prework for data path enabling for secondary process. To prevent pcap handler opened by one process be overwritten by another process, each process should have their private copy, `rte_eth_dev->process_private` is exactly what we needed. Signed-off-by: Qi Zhang --- drivers/net/pcap/rte_eth_pcap.c | 40 ++++++++++++++++++++++++++++++++++------ 1 file changed, 34 insertions(+), 6 deletions(-) diff --git a/drivers/net/pcap/rte_eth_pcap.c b/drivers/net/pcap/rte_eth_pcap.c index 7bbe72e25..88cb404f1 100644 --- a/drivers/net/pcap/rte_eth_pcap.c +++ b/drivers/net/pcap/rte_eth_pcap.c @@ -83,6 +83,12 @@ struct pmd_internals { int phy_mac; }; +struct pmd_process_private { + pcap_t *rx_pcap[RTE_PMD_PCAP_MAX_QUEUES]; + pcap_t *tx_pcap[RTE_PMD_PCAP_MAX_QUEUES]; + pcap_dumper_t *tx_dumper[RTE_PMD_PCAP_MAX_QUEUES]; +}; + struct pmd_devargs { unsigned int num_of_queue; struct devargs_queue { @@ -646,8 +652,10 @@ eth_rx_queue_setup(struct rte_eth_dev *dev, struct rte_mempool *mb_pool) { struct pmd_internals *internals = dev->data->dev_private; + struct pmd_process_private *pp = dev->process_private; struct pcap_rx_queue *pcap_q = &internals->rx_queue[rx_queue_id]; + pcap_q->pcap = pp->rx_pcap[rx_queue_id]; pcap_q->mb_pool = mb_pool; dev->data->rx_queues[rx_queue_id] = pcap_q; pcap_q->in_port = dev->data->port_id; @@ -663,8 +671,12 @@ eth_tx_queue_setup(struct rte_eth_dev *dev, const struct rte_eth_txconf *tx_conf __rte_unused) { struct pmd_internals *internals = dev->data->dev_private; + struct pmd_process_private *pp = dev->process_private; + struct pcap_tx_queue *pcap_q = &internals->tx_queue[tx_queue_id]; - dev->data->tx_queues[tx_queue_id] = &internals->tx_queue[tx_queue_id]; + pcap_q->pcap = pp->tx_pcap[tx_queue_id]; + pcap_q->dumper = pp->tx_dumper[tx_queue_id]; + dev->data->tx_queues[tx_queue_id] = pcap_q; return 0; } @@ -896,16 +908,29 @@ pmd_init_internals(struct rte_vdev_device *vdev, struct rte_eth_dev **eth_dev) { struct rte_eth_dev_data *data; + struct pmd_process_private *pp; unsigned int numa_node = vdev->device.numa_node; PMD_LOG(INFO, "Creating pcap-backed ethdev on numa socket %d", numa_node); + 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; + } + /* reserve an ethdev entry */ *eth_dev = rte_eth_vdev_allocate(vdev, sizeof(**internals)); - if (!(*eth_dev)) + if (!(*eth_dev)) { + rte_free(pp); return -1; - + } + (*eth_dev)->process_private = pp; /* now put it all together * - store queue data in internals, * - store numa_node info in eth_dev @@ -1027,6 +1052,7 @@ eth_from_pcaps_common(struct rte_vdev_device *vdev, struct pmd_devargs *tx_queues, const unsigned int nb_tx_queues, struct pmd_internals **internals, struct rte_eth_dev **eth_dev) { + struct pmd_process_private *pp; unsigned int i; /* do some parameter checking */ @@ -1039,11 +1065,12 @@ eth_from_pcaps_common(struct rte_vdev_device *vdev, eth_dev) < 0) return -1; + pp = (*eth_dev)->process_private; for (i = 0; i < nb_rx_queues; i++) { struct pcap_rx_queue *rx = &(*internals)->rx_queue[i]; struct devargs_queue *queue = &rx_queues->queue[i]; - rx->pcap = queue->pcap; + pp->rx_pcap[i] = queue->pcap; snprintf(rx->name, sizeof(rx->name), "%s", queue->name); snprintf(rx->type, sizeof(rx->type), "%s", queue->type); } @@ -1052,8 +1079,8 @@ eth_from_pcaps_common(struct rte_vdev_device *vdev, struct pcap_tx_queue *tx = &(*internals)->tx_queue[i]; struct devargs_queue *queue = &tx_queues->queue[i]; - tx->dumper = queue->dumper; - tx->pcap = queue->pcap; + pp->tx_dumper[i] = queue->dumper; + pp->tx_pcap[i] = queue->pcap; snprintf(tx->name, sizeof(tx->name), "%s", queue->name); snprintf(tx->type, sizeof(tx->type), "%s", queue->type); } @@ -1235,6 +1262,7 @@ pmd_pcap_remove(struct rte_vdev_device *dev) eth_dev->data->mac_addrs = NULL; } + rte_free(eth_dev->process_private); rte_eth_dev_release_port(eth_dev); return 0;