X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fvirtio%2Fvirtio_ethdev.c;h=19235a9fc0d1f488afc39d3ee4e2a9c91ac01b6e;hb=3dcfe0390c90560bdd4295dcb009e217521ca4a3;hp=0a76cce21ee083caf15dfb3ecaee6ce5d866f14a;hpb=9470427c88e1545931236a352b613e5785d18648;p=dpdk.git

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 0a76cce21e..19235a9fc0 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -38,6 +38,7 @@
 #include <unistd.h>
 
 #include <rte_ethdev.h>
+#include <rte_ethdev_pci.h>
 #include <rte_memcpy.h>
 #include <rte_string_fns.h>
 #include <rte_memzone.h>
@@ -545,6 +546,9 @@ virtio_free_queues(struct virtio_hw *hw)
 	int queue_type;
 	uint16_t i;
 
+	if (hw->vqs == NULL)
+		return;
+
 	for (i = 0; i < nr_vq; i++) {
 		vq = hw->vqs[i];
 		if (!vq)
@@ -563,9 +567,11 @@ virtio_free_queues(struct virtio_hw *hw)
 		}
 
 		rte_free(vq);
+		hw->vqs[i] = NULL;
 	}
 
 	rte_free(hw->vqs);
+	hw->vqs = NULL;
 }
 
 static int
@@ -593,16 +599,29 @@ virtio_alloc_queues(struct rte_eth_dev *dev)
 	return 0;
 }
 
+static void virtio_queues_unbind_intr(struct rte_eth_dev *dev);
+
 static void
 virtio_dev_close(struct rte_eth_dev *dev)
 {
 	struct virtio_hw *hw = dev->data->dev_private;
+	struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
 
 	PMD_INIT_LOG(DEBUG, "virtio_dev_close");
 
 	/* reset the NIC */
 	if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
-		vtpci_irq_config(hw, VIRTIO_MSI_NO_VECTOR);
+		VTPCI_OPS(hw)->set_config_irq(hw, VIRTIO_MSI_NO_VECTOR);
+	if (intr_conf->rxq)
+		virtio_queues_unbind_intr(dev);
+
+	if (intr_conf->lsc || intr_conf->rxq) {
+		rte_intr_disable(dev->intr_handle);
+		rte_intr_efd_disable(dev->intr_handle);
+		rte_free(dev->intr_handle->intr_vec);
+		dev->intr_handle->intr_vec = NULL;
+	}
+
 	vtpci_reset(hw);
 	virtio_dev_free_mbufs(dev);
 	virtio_free_queues(hw);
@@ -617,7 +636,7 @@ virtio_dev_promiscuous_enable(struct rte_eth_dev *dev)
 	int ret;
 
 	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
-		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		PMD_INIT_LOG(INFO, "host does not support rx control");
 		return;
 	}
 
@@ -640,7 +659,7 @@ virtio_dev_promiscuous_disable(struct rte_eth_dev *dev)
 	int ret;
 
 	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
-		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		PMD_INIT_LOG(INFO, "host does not support rx control");
 		return;
 	}
 
@@ -663,7 +682,7 @@ virtio_dev_allmulticast_enable(struct rte_eth_dev *dev)
 	int ret;
 
 	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
-		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		PMD_INIT_LOG(INFO, "host does not support rx control");
 		return;
 	}
 
@@ -686,7 +705,7 @@ virtio_dev_allmulticast_disable(struct rte_eth_dev *dev)
 	int ret;
 
 	if (!vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_RX)) {
-		PMD_INIT_LOG(INFO, "host does not support rx control\n");
+		PMD_INIT_LOG(INFO, "host does not support rx control");
 		return;
 	}
 
@@ -708,15 +727,38 @@ virtio_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 	uint32_t ether_hdr_len = ETHER_HDR_LEN + VLAN_TAG_LEN +
 				 hw->vtnet_hdr_size;
 	uint32_t frame_size = mtu + ether_hdr_len;
+	uint32_t max_frame_size = hw->max_mtu + ether_hdr_len;
+
+	max_frame_size = RTE_MIN(max_frame_size, VIRTIO_MAX_RX_PKTLEN);
 
-	if (mtu < ETHER_MIN_MTU || frame_size > VIRTIO_MAX_RX_PKTLEN) {
-		PMD_INIT_LOG(ERR, "MTU should be between %d and %d\n",
-			ETHER_MIN_MTU, VIRTIO_MAX_RX_PKTLEN - ether_hdr_len);
+	if (mtu < ETHER_MIN_MTU || frame_size > max_frame_size) {
+		PMD_INIT_LOG(ERR, "MTU should be between %d and %d",
+			ETHER_MIN_MTU, max_frame_size - ether_hdr_len);
 		return -EINVAL;
 	}
 	return 0;
 }
 
+static int
+virtio_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
+{
+	struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
+	struct virtqueue *vq = rxvq->vq;
+
+	virtqueue_enable_intr(vq);
+	return 0;
+}
+
+static int
+virtio_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
+{
+	struct virtnet_rx *rxvq = dev->data->rx_queues[queue_id];
+	struct virtqueue *vq = rxvq->vq;
+
+	virtqueue_disable_intr(vq);
+	return 0;
+}
+
 /*
  * dev_ops for virtio, bare necessities for basic operation
  */
@@ -738,7 +780,10 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
 	.xstats_reset            = virtio_dev_stats_reset,
 	.link_update             = virtio_dev_link_update,
 	.rx_queue_setup          = virtio_dev_rx_queue_setup,
+	.rx_queue_intr_enable    = virtio_dev_rx_queue_intr_enable,
+	.rx_queue_intr_disable   = virtio_dev_rx_queue_intr_disable,
 	.rx_queue_release        = virtio_dev_queue_release,
+	.rx_descriptor_done      = virtio_dev_rx_queue_done,
 	.tx_queue_setup          = virtio_dev_tx_queue_setup,
 	.tx_queue_release        = virtio_dev_queue_release,
 	/* collect stats per queue */
@@ -1122,6 +1167,18 @@ virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
 	PMD_INIT_LOG(DEBUG, "host_features before negotiate = %" PRIx64,
 		host_features);
 
+	/* If supported, ensure MTU value is valid before acknowledging it. */
+	if (host_features & req_features & (1ULL << VIRTIO_NET_F_MTU)) {
+		struct virtio_net_config config;
+
+		vtpci_read_dev_config(hw,
+			offsetof(struct virtio_net_config, mtu),
+			&config.mtu, sizeof(config.mtu));
+
+		if (config.mtu < ETHER_MIN_MTU)
+			req_features &= ~(1ULL << VIRTIO_NET_F_MTU);
+	}
+
 	/*
 	 * Negotiate features: Subset of device feature bits are written back
 	 * guest feature bits.
@@ -1154,9 +1211,8 @@ virtio_negotiate_features(struct virtio_hw *hw, uint64_t req_features)
  * Process Virtio Config changed interrupt and call the callback
  * if link state changed.
  */
-static void
-virtio_interrupt_handler(struct rte_intr_handle *handle,
-			 void *param)
+void
+virtio_interrupt_handler(void *param)
 {
 	struct rte_eth_dev *dev = param;
 	struct virtio_hw *hw = dev->data->dev_private;
@@ -1166,7 +1222,7 @@ virtio_interrupt_handler(struct rte_intr_handle *handle,
 	isr = vtpci_isr(hw);
 	PMD_DRV_LOG(INFO, "interrupt status = %#x", isr);
 
-	if (rte_intr_enable(handle) < 0)
+	if (rte_intr_enable(dev->intr_handle) < 0)
 		PMD_DRV_LOG(ERR, "interrupt enable failed");
 
 	if (isr & VIRTIO_PCI_ISR_CONFIG) {
@@ -1187,6 +1243,95 @@ rx_func_get(struct rte_eth_dev *eth_dev)
 		eth_dev->rx_pkt_burst = &virtio_recv_pkts;
 }
 
+/* Only support 1:1 queue/interrupt mapping so far.
+ * TODO: support n:1 queue/interrupt mapping when there are limited number of
+ * interrupt vectors (<N+1).
+ */
+static int
+virtio_queues_bind_intr(struct rte_eth_dev *dev)
+{
+	uint32_t i;
+	struct virtio_hw *hw = dev->data->dev_private;
+
+	PMD_INIT_LOG(INFO, "queue/interrupt binding");
+	for (i = 0; i < dev->data->nb_rx_queues; ++i) {
+		dev->intr_handle->intr_vec[i] = i + 1;
+		if (VTPCI_OPS(hw)->set_queue_irq(hw, hw->vqs[i * 2], i + 1) ==
+						 VIRTIO_MSI_NO_VECTOR) {
+			PMD_DRV_LOG(ERR, "failed to set queue vector");
+			return -EBUSY;
+		}
+	}
+
+	return 0;
+}
+
+static void
+virtio_queues_unbind_intr(struct rte_eth_dev *dev)
+{
+	uint32_t i;
+	struct virtio_hw *hw = dev->data->dev_private;
+
+	PMD_INIT_LOG(INFO, "queue/interrupt unbinding");
+	for (i = 0; i < dev->data->nb_rx_queues; ++i)
+		VTPCI_OPS(hw)->set_queue_irq(hw,
+					     hw->vqs[i * VTNET_CQ],
+					     VIRTIO_MSI_NO_VECTOR);
+}
+
+static int
+virtio_configure_intr(struct rte_eth_dev *dev)
+{
+	struct virtio_hw *hw = dev->data->dev_private;
+
+	if (!rte_intr_cap_multiple(dev->intr_handle)) {
+		PMD_INIT_LOG(ERR, "Multiple intr vector not supported");
+		return -ENOTSUP;
+	}
+
+	if (rte_intr_efd_enable(dev->intr_handle, dev->data->nb_rx_queues)) {
+		PMD_INIT_LOG(ERR, "Fail to create eventfd");
+		return -1;
+	}
+
+	if (!dev->intr_handle->intr_vec) {
+		dev->intr_handle->intr_vec =
+			rte_zmalloc("intr_vec",
+				    hw->max_queue_pairs * sizeof(int), 0);
+		if (!dev->intr_handle->intr_vec) {
+			PMD_INIT_LOG(ERR, "Failed to allocate %u rxq vectors",
+				     hw->max_queue_pairs);
+			return -ENOMEM;
+		}
+	}
+
+	/* Re-register callback to update max_intr */
+	rte_intr_callback_unregister(dev->intr_handle,
+				     virtio_interrupt_handler,
+				     dev);
+	rte_intr_callback_register(dev->intr_handle,
+				   virtio_interrupt_handler,
+				   dev);
+
+	/* DO NOT try to remove this! This function will enable msix, or QEMU
+	 * will encounter SIGSEGV when DRIVER_OK is sent.
+	 * And for legacy devices, this should be done before queue/vec binding
+	 * to change the config size from 20 to 24, or VIRTIO_MSI_QUEUE_VECTOR
+	 * (22) will be ignored.
+	 */
+	if (rte_intr_enable(dev->intr_handle) < 0) {
+		PMD_DRV_LOG(ERR, "interrupt enable failed");
+		return -1;
+	}
+
+	if (virtio_queues_bind_intr(dev) < 0) {
+		PMD_INIT_LOG(ERR, "Failed to bind queue/interrupt");
+		return -1;
+	}
+
+	return 0;
+}
+
 /* reset device and renegotiate features if needed */
 static int
 virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
@@ -1208,18 +1353,18 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
 	if (virtio_negotiate_features(hw, req_features) < 0)
 		return -1;
 
-	/* If host does not support status then disable LSC */
-	if (!vtpci_with_feature(hw, VIRTIO_NET_F_STATUS))
-		eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
-	else
-		eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
-
-	if (eth_dev->device) {
+	if (!hw->virtio_user_dev) {
 		pci_dev = RTE_DEV_TO_PCI(eth_dev->device);
 		rte_eth_copy_pci_info(eth_dev, pci_dev);
-		eth_dev->data->dev_flags = RTE_ETH_DEV_DETACHABLE;
 	}
 
+	eth_dev->data->dev_flags = RTE_ETH_DEV_DETACHABLE;
+	/* If host does not support both status and MSI-X then disable LSC */
+	if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS) && hw->use_msix)
+		eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
+	else
+		eth_dev->data->dev_flags &= ~RTE_ETH_DEV_INTR_LSC;
+
 	rx_func_get(eth_dev);
 
 	/* Setting up rx_header size for the device */
@@ -1268,6 +1413,32 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
 
 		hw->max_queue_pairs = config->max_virtqueue_pairs;
 
+		if (vtpci_with_feature(hw, VIRTIO_NET_F_MTU)) {
+			vtpci_read_dev_config(hw,
+				offsetof(struct virtio_net_config, mtu),
+				&config->mtu,
+				sizeof(config->mtu));
+
+			/*
+			 * MTU value has already been checked at negotiation
+			 * time, but check again in case it has changed since
+			 * then, which should not happen.
+			 */
+			if (config->mtu < ETHER_MIN_MTU) {
+				PMD_INIT_LOG(ERR, "invalid max MTU value (%u)",
+						config->mtu);
+				return -1;
+			}
+
+			hw->max_mtu = config->mtu;
+			/* Set initial MTU to maximum one supported by vhost */
+			eth_dev->data->mtu = config->mtu;
+
+		} else {
+			hw->max_mtu = VIRTIO_MAX_RX_PKTLEN - ETHER_HDR_LEN -
+				VLAN_TAG_LEN - hw->vtnet_hdr_size;
+		}
+
 		PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=%d",
 				config->max_virtqueue_pairs);
 		PMD_INIT_LOG(DEBUG, "config->status=%d", config->status);
@@ -1284,6 +1455,14 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
 	ret = virtio_alloc_queues(eth_dev);
 	if (ret < 0)
 		return ret;
+
+	if (eth_dev->data->dev_conf.intr_conf.rxq) {
+		if (virtio_configure_intr(eth_dev) < 0) {
+			PMD_INIT_LOG(ERR, "failed to configure interrupt");
+			return -1;
+		}
+	}
+
 	vtpci_reinit_complete(hw);
 
 	if (pci_dev)
@@ -1305,7 +1484,7 @@ virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
 	if (hw->modern) {
 		/*
 		 * We don't have to re-parse the PCI config space, since
-		 * rte_eal_pci_map_device() makes sure the mapped address
+		 * rte_pci_map_device() makes sure the mapped address
 		 * in secondary process would equal to the one mapped in
 		 * the primary process: error will be returned if that
 		 * requirement is not met.
@@ -1314,12 +1493,12 @@ virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
 		 * (such as dev_cfg, common_cfg, etc.) parsed from the
 		 * primary process, which is stored in shared memory.
 		 */
-		if (rte_eal_pci_map_device(pci_dev)) {
+		if (rte_pci_map_device(pci_dev)) {
 			PMD_INIT_LOG(DEBUG, "failed to map pci device!");
 			return -1;
 		}
 	} else {
-		if (rte_eal_pci_ioport_map(pci_dev, 0, VTPCI_IO(hw)) < 0)
+		if (rte_pci_ioport_map(pci_dev, 0, VTPCI_IO(hw)) < 0)
 			return -1;
 	}
 
@@ -1329,9 +1508,12 @@ virtio_remap_pci(struct rte_pci_device *pci_dev, struct virtio_hw *hw)
 static void
 virtio_set_vtpci_ops(struct virtio_hw *hw)
 {
+#ifdef RTE_VIRTIO_USER
 	if (hw->virtio_user_dev)
 		VTPCI_OPS(hw) = &virtio_user_ops;
-	else if (hw->modern)
+	else
+#endif
+	if (hw->modern)
 		VTPCI_OPS(hw) = &modern_ops;
 	else
 		VTPCI_OPS(hw) = &legacy_ops;
@@ -1345,7 +1527,6 @@ int
 eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 {
 	struct virtio_hw *hw = eth_dev->data->dev_private;
-	uint32_t dev_flags = RTE_ETH_DEV_DETACHABLE;
 	int ret;
 
 	RTE_BUILD_BUG_ON(RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr_mrg_rxbuf));
@@ -1380,19 +1561,16 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 		return -ENOMEM;
 	}
 
+	hw->port_id = eth_dev->data->port_id;
 	/* For virtio_user case the hw->virtio_user_dev is populated by
 	 * virtio_user_eth_dev_alloc() before eth_virtio_dev_init() is called.
 	 */
 	if (!hw->virtio_user_dev) {
-		ret = vtpci_init(RTE_DEV_TO_PCI(eth_dev->device), hw,
-				 &dev_flags);
+		ret = vtpci_init(RTE_DEV_TO_PCI(eth_dev->device), hw);
 		if (ret)
 			return ret;
 	}
 
-	hw->port_id = eth_dev->data->port_id;
-	eth_dev->data->dev_flags = dev_flags;
-
 	/* reset device and negotiate default features */
 	ret = virtio_init_device(eth_dev, VIRTIO_PMD_DEFAULT_GUEST_FEATURES);
 	if (ret < 0)
@@ -1430,26 +1608,33 @@ eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev)
 						virtio_interrupt_handler,
 						eth_dev);
 	if (eth_dev->device)
-		rte_eal_pci_unmap_device(RTE_DEV_TO_PCI(eth_dev->device));
+		rte_pci_unmap_device(RTE_DEV_TO_PCI(eth_dev->device));
 
 	PMD_INIT_LOG(DEBUG, "dev_uninit completed");
 
 	return 0;
 }
 
-static struct eth_driver rte_virtio_pmd = {
-	.pci_drv = {
-		.driver = {
-			.name = "net_virtio",
-		},
-		.id_table = pci_id_virtio_map,
-		.drv_flags = 0,
-		.probe = rte_eth_dev_pci_probe,
-		.remove = rte_eth_dev_pci_remove,
+static int eth_virtio_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+	struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct virtio_hw),
+		eth_virtio_dev_init);
+}
+
+static int eth_virtio_pci_remove(struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_remove(pci_dev, eth_virtio_dev_uninit);
+}
+
+static struct rte_pci_driver rte_virtio_pmd = {
+	.driver = {
+		.name = "net_virtio",
 	},
-	.eth_dev_init = eth_virtio_dev_init,
-	.eth_dev_uninit = eth_virtio_dev_uninit,
-	.dev_private_size = sizeof(struct virtio_hw),
+	.id_table = pci_id_virtio_map,
+	.drv_flags = 0,
+	.probe = eth_virtio_pci_probe,
+	.remove = eth_virtio_pci_remove,
 };
 
 RTE_INIT(rte_virtio_pmd_init);
@@ -1461,7 +1646,7 @@ rte_virtio_pmd_init(void)
 		return;
 	}
 
-	rte_eal_pci_register(&rte_virtio_pmd.pci_drv);
+	rte_pci_register(&rte_virtio_pmd);
 }
 
 /*
@@ -1521,7 +1706,9 @@ virtio_dev_configure(struct rte_eth_dev *dev)
 	}
 
 	if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC)
-		if (vtpci_irq_config(hw, 0) == VIRTIO_MSI_NO_VECTOR) {
+		/* Enable vector (0) for Link State Intrerrupt */
+		if (VTPCI_OPS(hw)->set_config_irq(hw, 0) ==
+				VIRTIO_MSI_NO_VECTOR) {
 			PMD_DRV_LOG(ERR, "failed to set config vector");
 			return -EBUSY;
 		}
@@ -1544,6 +1731,15 @@ virtio_dev_start(struct rte_eth_dev *dev)
 			PMD_DRV_LOG(ERR, "link status not supported by host");
 			return -ENOTSUP;
 		}
+	}
+
+	/* Enable uio/vfio intr/eventfd mapping: althrough we already did that
+	 * in device configure, but it could be unmapped  when device is
+	 * stopped.
+	 */
+	if (dev->data->dev_conf.intr_conf.lsc ||
+	    dev->data->dev_conf.intr_conf.rxq) {
+		rte_intr_disable(dev->intr_handle);
 
 		if (rte_intr_enable(dev->intr_handle) < 0) {
 			PMD_DRV_LOG(ERR, "interrupt enable failed");
@@ -1551,9 +1747,6 @@ virtio_dev_start(struct rte_eth_dev *dev)
 		}
 	}
 
-	/* Initialize Link state */
-	virtio_dev_link_update(dev, 0);
-
 	/*Notify the backend
 	 *Otherwise the tap backend might already stop its queue due to fullness.
 	 *vhost backend will have no chance to be waked up
@@ -1583,6 +1776,11 @@ virtio_dev_start(struct rte_eth_dev *dev)
 		VIRTQUEUE_DUMP(txvq->vq);
 	}
 
+	hw->started = 1;
+
+	/* Initialize Link state */
+	virtio_dev_link_update(dev, 0);
+
 	return 0;
 }
 
@@ -1637,13 +1835,16 @@ 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;
+	struct rte_intr_conf *intr_conf = &dev->data->dev_conf.intr_conf;
 
 	PMD_INIT_LOG(DEBUG, "stop");
 
-	if (dev->data->dev_conf.intr_conf.lsc)
+	if (intr_conf->lsc || intr_conf->rxq)
 		rte_intr_disable(dev->intr_handle);
 
+	hw->started = 0;
 	memset(&link, 0, sizeof(link));
 	virtio_dev_atomic_write_link_status(dev, &link);
 }
@@ -1660,7 +1861,9 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
 	link.link_duplex = ETH_LINK_FULL_DUPLEX;
 	link.link_speed  = SPEED_10G;
 
-	if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
+	if (hw->started == 0) {
+		link.link_status = ETH_LINK_DOWN;
+	} else if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
 		PMD_INIT_LOG(DEBUG, "Get link status from hw");
 		vtpci_read_dev_config(hw,
 				offsetof(struct virtio_net_config, status),
@@ -1685,9 +1888,11 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
 static void
 virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 {
-	uint64_t tso_mask;
+	uint64_t tso_mask, host_features;
 	struct virtio_hw *hw = dev->data->dev_private;
 
+	dev_info->speed_capa = ETH_LINK_SPEED_10G; /* fake value */
+
 	dev_info->pci_dev = dev->device ? RTE_DEV_TO_PCI(dev->device) : NULL;
 	dev_info->max_rx_queues =
 		RTE_MIN(hw->max_queue_pairs, VIRTIO_MAX_RX_QUEUES);
@@ -1699,18 +1904,25 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	dev_info->default_txconf = (struct rte_eth_txconf) {
 		.txq_flags = ETH_TXQ_FLAGS_NOOFFLOADS
 	};
-	dev_info->rx_offload_capa =
-		DEV_RX_OFFLOAD_TCP_CKSUM |
-		DEV_RX_OFFLOAD_UDP_CKSUM |
-		DEV_RX_OFFLOAD_TCP_LRO;
-	dev_info->tx_offload_capa = 0;
 
+	host_features = VTPCI_OPS(hw)->get_features(hw);
+	dev_info->rx_offload_capa = 0;
+	if (host_features & (1ULL << VIRTIO_NET_F_GUEST_CSUM)) {
+		dev_info->rx_offload_capa |=
+			DEV_RX_OFFLOAD_TCP_CKSUM |
+			DEV_RX_OFFLOAD_UDP_CKSUM;
+	}
+	tso_mask = (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
+		(1ULL << VIRTIO_NET_F_GUEST_TSO6);
+	if ((host_features & tso_mask) == tso_mask)
+		dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_TCP_LRO;
+
+	dev_info->tx_offload_capa = 0;
 	if (hw->guest_features & (1ULL << VIRTIO_NET_F_CSUM)) {
 		dev_info->tx_offload_capa |=
 			DEV_TX_OFFLOAD_UDP_CKSUM |
 			DEV_TX_OFFLOAD_TCP_CKSUM;
 	}
-
 	tso_mask = (1ULL << VIRTIO_NET_F_HOST_TSO4) |
 		(1ULL << VIRTIO_NET_F_HOST_TSO6);
 	if ((hw->guest_features & tso_mask) == tso_mask)