From patchwork Tue Dec 20 11:11:51 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Blunck X-Patchwork-Id: 18250 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 0ABB2FB67; Tue, 20 Dec 2016 12:12:46 +0100 (CET) Received: from mail-wm0-f68.google.com (mail-wm0-f68.google.com [74.125.82.68]) by dpdk.org (Postfix) with ESMTP id 28003FB4B for ; Tue, 20 Dec 2016 12:12:22 +0100 (CET) Received: by mail-wm0-f68.google.com with SMTP id m203so23620549wma.3 for ; Tue, 20 Dec 2016 03:12:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=Vqsnq0DRarx5VjEXq3bCGmBdgE22ORvL4YPUXUJNE+8=; b=gLUDJyAa/QPBQQOapt9Erp9BewvmbwPdmvYgcd7zZoaKQqCqn0fxx8wicQqCLsjKxM Vy+T9VuG2aqCATzYy93yIOP/Ln7ZIS+hwsOssLE6gE/tUiaU3pN/ruT6UaKQmyHHAAUb 851zAN67jH7E8m9ImH+O7eTRUbvMX76e/p1Q+TN/hPX4DdtkVjJ+B565EWg56bavgoVR xjPXgmnmMNcB4gDgQc2m9vxwBko7eDMBNAZOvc1x8iOERUlPXcUBxAAEz1QQmh8s3S0l nuiIOopldNcNjWb2bEHxKIyPVEYvbkvJ+tIJfYiWmD0NMSldpeAgoIELZicZJ+KjRk2R TWDA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=Vqsnq0DRarx5VjEXq3bCGmBdgE22ORvL4YPUXUJNE+8=; b=KEMAuEhFbXMY8uHORhaNeo82fZn/bDLktQHgtCiua2DkRxKy3GF45QbYxtBJJNv3z5 LtfhyXMdD78zu8J+tjN9wBY6hf8NFtPKRciRYIFCLeKJKlbdijA37H3RF/UAd5GkUeiy p3K6QHuqQF1wZ9TYuKFqroNRl/xbKkHfTWUsTCUlIqapvga3MQIG6FFlUGqfaXEs6mm8 OBfR+KtuBeGMlM7+Q59bSibFCjyOu1Puby417StIdDS0bimhdCx0vZDW+kk4eaaDRLPe rtqXziHfJMeZCpzwjTfhFnl5YXYhHwOecn3iz/Zjpv6cNoQXNIt5JS9a2lGnfAcBaeNH Ednw== X-Gm-Message-State: AIkVDXJuS/OBoMHhSdcPXBQmVAQzwAN+HBesWo+gScYYuN8PiCcXs87BgN269yh5ibCEzw== X-Received: by 10.28.9.131 with SMTP id 125mr1416065wmj.22.1482232341877; Tue, 20 Dec 2016 03:12:21 -0800 (PST) Received: from weierstrass.local.net ([91.200.109.169]) by smtp.gmail.com with ESMTPSA id q65sm21527756wmd.6.2016.12.20.03.12.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 20 Dec 2016 03:12:21 -0800 (PST) From: Jan Blunck To: dev@dpdk.org Cc: shreyansh.jain@nxp.com, david.marchand@6wind.com, stephen@networkplumber.org Date: Tue, 20 Dec 2016 12:11:51 +0100 Message-Id: <1482232315-21626-6-git-send-email-jblunck@infradead.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1482232315-21626-1-git-send-email-jblunck@infradead.org> References: <1482232315-21626-1-git-send-email-jblunck@infradead.org> Subject: [dpdk-dev] [PATCH v3 5/9] virtio: Add vtpci_intr_handle() helper to get rte_intr_handle 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 adds a helper to get the rte_intr_handle from the virtio_hw. This is safe to do since the usage of the helper is guarded by RTE_ETH_DEV_INTR_LSC which is only set if we found a PCI device during initialization. Signed-off-by: Jan Blunck --- drivers/net/virtio/virtio_ethdev.c | 12 +++++++----- drivers/net/virtio/virtio_pci.h | 6 ++++++ 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 741688e..da9668e 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -1162,7 +1162,7 @@ virtio_interrupt_handler(__rte_unused struct rte_intr_handle *handle, isr = vtpci_isr(hw); PMD_DRV_LOG(INFO, "interrupt status = %#x", isr); - if (rte_intr_enable(&dev->pci_dev->intr_handle) < 0) + if (rte_intr_enable(vtpci_intr_handle(hw)) < 0) PMD_DRV_LOG(ERR, "interrupt enable failed"); if (isr & VIRTIO_PCI_ISR_CONFIG) { @@ -1334,7 +1334,7 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev) /* Setup interrupt callback */ if (eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) - rte_intr_callback_register(&pci_dev->intr_handle, + rte_intr_callback_register(vtpci_intr_handle(hw), virtio_interrupt_handler, eth_dev); return 0; @@ -1344,6 +1344,7 @@ static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev) { struct rte_pci_device *pci_dev; + struct virtio_hw *hw = eth_dev->data->dev_private; PMD_INIT_FUNC_TRACE(); @@ -1363,7 +1364,7 @@ eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev) /* reset interrupt callback */ if (eth_dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) - rte_intr_callback_unregister(&pci_dev->intr_handle, + rte_intr_callback_unregister(vtpci_intr_handle(hw), virtio_interrupt_handler, eth_dev); rte_eal_pci_unmap_device(pci_dev); @@ -1481,7 +1482,7 @@ virtio_dev_start(struct rte_eth_dev *dev) return -ENOTSUP; } - if (rte_intr_enable(&dev->pci_dev->intr_handle) < 0) { + if (rte_intr_enable(vtpci_intr_handle(hw)) < 0) { PMD_DRV_LOG(ERR, "interrupt enable failed"); return -EIO; } @@ -1573,12 +1574,13 @@ static void virtio_dev_free_mbufs(struct rte_eth_dev *dev) static void virtio_dev_stop(struct rte_eth_dev *dev) { + struct virtio_hw *hw = dev->data->dev_private; struct rte_eth_link link; PMD_INIT_LOG(DEBUG, "stop"); if (dev->data->dev_conf.intr_conf.lsc) - rte_intr_disable(&dev->pci_dev->intr_handle); + rte_intr_disable(vtpci_intr_handle(hw)); memset(&link, 0, sizeof(link)); virtio_dev_atomic_write_link_status(dev, &link); diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h index de271bf..5373e39 100644 --- a/drivers/net/virtio/virtio_pci.h +++ b/drivers/net/virtio/virtio_pci.h @@ -317,4 +317,10 @@ uint8_t vtpci_isr(struct virtio_hw *); uint16_t vtpci_irq_config(struct virtio_hw *, uint16_t); +static inline struct rte_intr_handle * +vtpci_intr_handle(struct virtio_hw *hw) +{ + return hw->dev ? &hw->dev->intr_handle : NULL; +} + #endif /* _VIRTIO_PCI_H_ */