From patchwork Mon Nov 21 16:55:19 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Blunck X-Patchwork-Id: 17166 X-Patchwork-Delegate: thomas@monjalon.net 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 CA565691A; Mon, 21 Nov 2016 17:57:21 +0100 (CET) Received: from mail-wm0-f66.google.com (mail-wm0-f66.google.com [74.125.82.66]) by dpdk.org (Postfix) with ESMTP id 2CE6C568A for ; Mon, 21 Nov 2016 17:57:10 +0100 (CET) Received: by mail-wm0-f66.google.com with SMTP id g23so3623198wme.1 for ; Mon, 21 Nov 2016 08:57:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=Vqsnq0DRarx5VjEXq3bCGmBdgE22ORvL4YPUXUJNE+8=; b=UQA6NrZaecq45CaojrtMa9ZNs/ysoWjGwQhTykmfI6z7ckFQLqpMkyqXr0/+++CCU7 8NZTQ+11pbdMxqGqSdAdLMgNH3enNh9YtNeIQQqS/X5PDcJnIrRWb2ytfoz9IcYhmzS8 e7kDiJsNdIZwmWjw6AyDdoDRZinWvOMt5PBM0A2LDZLe22bT/J6m56qCl5qYLi4xvrRv 9AJcXlIwEuJL3M7J+GJMamVXcVcPfdfeXBg6UgGiPIzsrHZVf/k31fDnktdSp+ZuFhET Apx8BEcoe9gxehF4p0CX430V2EcZPpDQMUiTKbNxLIe4l95CPPuKEciPUQjkRzRc/OVK 9GEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=Vqsnq0DRarx5VjEXq3bCGmBdgE22ORvL4YPUXUJNE+8=; b=aL66Y7o4KYom9SQCFLzbGZU8+vLGVFv4ERik+c+J48SNhFiiw/ek4WExwMKzdhbume IKR3g5YQAnIFIL/zl/hBhuFayAV6IVkcZ4f7cUy85f2bN0j9ydLuj4cOpLdRekGccYWJ gZ0EJ1u4VnlfGS1O96AdyuGZ8TVb9DzbbeS7Zz5jfqWGtb6w1vzf8FugTruCCLzqrQ5g o6aaYlAPfXUKscATO/8px+8p2qcdD5IAcjpZegajNucceGlCYh9Dt5V5YYnkm2a/jDiC HLOLZ4+I9c18RS841lo1G0otWRmMyn91VRseJqBjhzJO1goKiMFe90GtcqfwpHxkY+Z7 oMfg== X-Gm-Message-State: AKaTC03SBo1FkvEO61jU04yd5Yg6GeaKj3eLBJyWgOCNcNLvsT1P/Au9x6zdBDvXld3lqA== X-Received: by 10.28.227.9 with SMTP id a9mr17803866wmh.85.1479747429765; Mon, 21 Nov 2016 08:57:09 -0800 (PST) Received: from weierstrass.local.net ([91.200.110.70]) by smtp.gmail.com with ESMTPSA id v202sm20536051wmv.8.2016.11.21.08.57.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 Nov 2016 08:57:09 -0800 (PST) From: Jan Blunck To: dev@dpdk.org Cc: shreyansh.jain@nxp.com, david.marchand@6wind.com Date: Mon, 21 Nov 2016 17:55:19 +0100 Message-Id: <1479747322-5774-5-git-send-email-jblunck@infradead.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1479747322-5774-1-git-send-email-jblunck@infradead.org> References: <1479747322-5774-1-git-send-email-jblunck@infradead.org> Subject: [dpdk-dev] [PATCH v2 5/8] 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: patches and discussions about DPDK 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_ */