From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shukla Subject: [PATCH v3 08/12] virtio: Add capability to initialize driver for vfio interface Date: Thu, 7 Jan 2016 22:03:05 +0530 Message-ID: <1452184390-5994-9-git-send-email-sshukla@mvista.com> References: <1452184390-5994-1-git-send-email-sshukla@mvista.com> Cc: Rakesh Krishnamurhty , Rizwan Ansari To: dev@dpdk.org Return-path: Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com [209.85.220.48]) by dpdk.org (Postfix) with ESMTP id E9639C1C6 for ; Thu, 7 Jan 2016 17:34:33 +0100 (CET) Received: by mail-pa0-f48.google.com with SMTP id uo6so244124109pac.1 for ; Thu, 07 Jan 2016 08:34:33 -0800 (PST) In-Reply-To: <1452184390-5994-1-git-send-email-sshukla@mvista.com> 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" - adding pci_dev member in struct virtio_hw{} to track vfio_dev_fd per virtio interface, required for ioport rd/wr operation. - Masked default VIRTIO_READ/WRITE for vfio case. Signed-off-by: Santosh Shukla Signed-off-by: Rizwan Ansari Signed-off-by: Rakesh Krishnamurhty --- drivers/net/virtio/virtio_ethdev.c | 11 ++++++++++- drivers/net/virtio/virtio_pci.h | 9 +++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index d928339..9ca99d5 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -1287,9 +1287,18 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev) pci_dev = eth_dev->pci_dev; +#ifdef RTE_EAL_VFIO + hw->pci_dev = pci_dev; + + /* For debug use only */ + const struct rte_intr_handle *intr_handle __rte_unused = &pci_dev->intr_handle; + PMD_INIT_LOG(DEBUG, "hw->pci_dev %p intr_handle %p vfio_dev_fd %d\n", + hw->pci_dev, intr_handle, + intr_handle->vfio_dev_fd); +#endif + if (virtio_resource_init(pci_dev) < 0) return -1; - hw->use_msix = virtio_has_msix(&pci_dev->addr); hw->io_base = (uint32_t)(uintptr_t)pci_dev->mem_resource[0].addr; diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h index 8b5b031..6dabede 100644 --- a/drivers/net/virtio/virtio_pci.h +++ b/drivers/net/virtio/virtio_pci.h @@ -47,6 +47,10 @@ #include +#ifdef RTE_EAL_VFIO +#include "virtio_vfio.h" +#endif + struct virtqueue; /* VirtIO PCI vendor/device ID. */ @@ -176,6 +180,9 @@ struct virtio_hw { uint8_t use_msix; uint8_t started; uint8_t mac_addr[ETHER_ADDR_LEN]; +#ifdef RTE_EAL_VFIO + const struct rte_pci_device *pci_dev; +#endif }; /* @@ -228,6 +235,7 @@ outl_p(unsigned int data, unsigned int port) } #endif +#ifndef RTE_EAL_VFIO #define VIRTIO_PCI_REG_ADDR(hw, reg) \ (unsigned short)((hw)->io_base + (reg)) @@ -245,6 +253,7 @@ outl_p(unsigned int data, unsigned int port) inl((VIRTIO_PCI_REG_ADDR((hw), (reg)))) #define VIRTIO_WRITE_REG_4(hw, reg, value) \ outl_p((unsigned int)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg)))) +#endif static inline int vtpci_with_feature(struct virtio_hw *hw, uint32_t bit) -- 1.7.9.5