Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "virtio,vdpa,qemu_fw_cfg: features, cleanups, and fixes.

   - partial support for < MAX_ORDER - 1 granularity for virtio-mem

   - driver_override for vdpa

   - sysfs ABI documentation for vdpa

   - multiqueue config support for mlx5 vdpa

   - and misc fixes, cleanups"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (42 commits)
  vdpa/mlx5: Fix tracking of current number of VQs
  vdpa/mlx5: Fix is_index_valid() to refer to features
  vdpa: Protect vdpa reset with cf_mutex
  vdpa: Avoid taking cf_mutex lock on get status
  vdpa/vdpa_sim_net: Report max device capabilities
  vdpa: Use BIT_ULL for bit operations
  vdpa/vdpa_sim: Configure max supported virtqueues
  vdpa/mlx5: Report max device capabilities
  vdpa: Support reporting max device capabilities
  vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()
  vdpa: Add support for returning device configuration information
  vdpa/mlx5: Support configuring max data virtqueue
  vdpa/mlx5: Fix config_attr_mask assignment
  vdpa: Allow to configure max data virtqueues
  vdpa: Read device configuration only if FEATURES_OK
  vdpa: Sync calls set/get config/status with cf_mutex
  vdpa/mlx5: Distribute RX virtqueues in RQT object
  vdpa: Provide interface to read driver features
  vdpa: clean up get_config_size ret value handling
  virtio_ring: mark ring unused on error
  ...

37 files changed, 474 insertions, 221 deletions

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index c3dc3cd7a779..c443cd64fc9b 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -976,7 +976,7 @@ static void virtblk_remove(struct virtio_device *vdev)
 	mutex_lock(&vblk->vdev_mutex);
 
 	/* Stop all the virtqueues. */
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	/* Virtqueues are stopped, nothing can use vblk->vdev anymore. */
 	vblk->vdev = NULL;
@@ -995,7 +995,7 @@ static int virtblk_freeze(struct virtio_device *vdev)
 	struct virtio_blk *vblk = vdev->priv;
 
 	/* Ensure we don't receive any more interrupts */
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	/* Make sure no work handler is accessing the device. */
 	flush_work(&vblk->config_work);
diff --git a/drivers/bluetooth/virtio_bt.c b/drivers/bluetooth/virtio_bt.c
index 076e4942a3f0..67c21263f9e0 100644
--- a/drivers/bluetooth/virtio_bt.c
+++ b/drivers/bluetooth/virtio_bt.c
@@ -367,7 +367,7 @@ static void virtbt_remove(struct virtio_device *vdev)
 	struct hci_dev *hdev = vbt->hdev;
 
 	hci_unregister_dev(hdev);
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	hci_free_dev(hdev);
 	vbt->hdev = NULL;
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 0a7dde135db1..e856df7e285c 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -179,9 +179,9 @@ static void remove_common(struct virtio_device *vdev)
 	vi->data_avail = 0;
 	vi->data_idx = 0;
 	complete(&vi->have_data);
-	vdev->config->reset(vdev);
 	if (vi->hwrng_register_done)
 		hwrng_unregister(&vi->hwrng);
+	virtio_reset_device(vdev);
 	vdev->config->del_vqs(vdev);
 	ida_simple_remove(&rng_index_ida, vi->index);
 	kfree(vi);
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 660c5c388c29..2359889a35a0 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1958,7 +1958,7 @@ static void virtcons_remove(struct virtio_device *vdev)
 	spin_unlock_irq(&pdrvdata_lock);
 
 	/* Disable interrupts for vqs */
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	/* Finish up work that's lined up */
 	if (use_multiport(portdev))
 		cancel_work_sync(&portdev->control_work);
@@ -2148,7 +2148,7 @@ static int virtcons_freeze(struct virtio_device *vdev)
 
 	portdev = vdev->priv;
 
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	if (use_multiport(portdev))
 		virtqueue_disable_cb(portdev->c_ivq);
diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c
index e2375d992308..8e977b7627cb 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c
@@ -404,7 +404,7 @@ static int virtcrypto_probe(struct virtio_device *vdev)
 free_engines:
 	virtcrypto_clear_crypto_engines(vcrypto);
 free_vqs:
-	vcrypto->vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	virtcrypto_del_vqs(vcrypto);
 free_dev:
 	virtcrypto_devmgr_rm_dev(vcrypto);
@@ -436,7 +436,7 @@ static void virtcrypto_remove(struct virtio_device *vdev)
 
 	if (virtcrypto_dev_started(vcrypto))
 		virtcrypto_dev_stop(vcrypto);
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	virtcrypto_free_unused_reqs(vcrypto);
 	virtcrypto_clear_crypto_engines(vcrypto);
 	virtcrypto_del_vqs(vcrypto);
@@ -456,7 +456,7 @@ static int virtcrypto_freeze(struct virtio_device *vdev)
 {
 	struct virtio_crypto *vcrypto = vdev->priv;
 
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	virtcrypto_free_unused_reqs(vcrypto);
 	if (virtcrypto_dev_started(vcrypto))
 		virtcrypto_dev_stop(vcrypto);
@@ -492,7 +492,7 @@ static int virtcrypto_restore(struct virtio_device *vdev)
 free_engines:
 	virtcrypto_clear_crypto_engines(vcrypto);
 free_vqs:
-	vcrypto->vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	virtcrypto_del_vqs(vcrypto);
 	return err;
 }
diff --git a/drivers/firmware/arm_scmi/virtio.c b/drivers/firmware/arm_scmi/virtio.c
index 87039c5c03fd..eefcc4146749 100644
--- a/drivers/firmware/arm_scmi/virtio.c
+++ b/drivers/firmware/arm_scmi/virtio.c
@@ -452,7 +452,7 @@ static void scmi_vio_remove(struct virtio_device *vdev)
 	 * outstanding message on any vqueue to be ignored by complete_cb: now
 	 * we can just stop processing buffers and destroy the vqueues.
 	 */
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	vdev->config->del_vqs(vdev);
 	/* Ensure scmi_vdev is visible as NULL */
 	smp_store_mb(scmi_vdev, NULL);
diff --git a/drivers/gpio/gpio-virtio.c b/drivers/gpio/gpio-virtio.c
index 9f4941bc5760..fcc5e8c08973 100644
--- a/drivers/gpio/gpio-virtio.c
+++ b/drivers/gpio/gpio-virtio.c
@@ -450,7 +450,7 @@ static void virtio_gpio_request_vq(struct virtqueue *vq)
 
 static void virtio_gpio_free_vqs(struct virtio_device *vdev)
 {
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	vdev->config->del_vqs(vdev);
 }
 
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 21f410901694..3313b92db531 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -279,7 +279,7 @@ void virtio_gpu_deinit(struct drm_device *dev)
 	flush_work(&vgdev->ctrlq.dequeue_work);
 	flush_work(&vgdev->cursorq.dequeue_work);
 	flush_work(&vgdev->config_changed_work);
-	vgdev->vdev->config->reset(vgdev->vdev);
+	virtio_reset_device(vgdev->vdev);
 	vgdev->vdev->config->del_vqs(vgdev->vdev);
 }
 
diff --git a/drivers/i2c/busses/i2c-virtio.c b/drivers/i2c/busses/i2c-virtio.c
index 41eb0dcc3204..4b9536f50800 100644
--- a/drivers/i2c/busses/i2c-virtio.c
+++ b/drivers/i2c/busses/i2c-virtio.c
@@ -165,7 +165,7 @@ err_free:
 
 static void virtio_i2c_del_vqs(struct virtio_device *vdev)
 {
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	vdev->config->del_vqs(vdev);
 }
 
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 1f793219cac6..f2aa34f57454 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -1189,7 +1189,7 @@ static void viommu_remove(struct virtio_device *vdev)
 	iommu_device_unregister(&viommu->iommu);
 
 	/* Stop all virtqueues */
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	vdev->config->del_vqs(vdev);
 
 	dev_info(&vdev->dev, "device removed\n");
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index 91230894692d..444ef6a342f6 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -754,7 +754,7 @@ static void cfv_remove(struct virtio_device *vdev)
 	debugfs_remove_recursive(cfv->debugfs);
 
 	vringh_kiov_cleanup(&cfv->ctx.riov);
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	vdev->vringh_config->del_vrhs(cfv->vdev);
 	cfv->vr_rx = NULL;
 	vdev->config->del_vqs(cfv->vdev);
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 569eecfbc2cd..3d97f158ec59 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -3312,7 +3312,7 @@ static int virtnet_probe(struct virtio_device *vdev)
 	return 0;
 
 free_unregister_netdev:
-	vi->vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	unregister_netdev(dev);
 free_failover:
@@ -3328,7 +3328,7 @@ free:
 
 static void remove_vq_common(struct virtnet_info *vi)
 {
-	vi->vdev->config->reset(vi->vdev);
+	virtio_reset_device(vi->vdev);
 
 	/* Free unused buffers in both send and recv, if any. */
 	free_unused_bufs(vi);
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 0307a6677907..8d54f9face2f 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -4498,7 +4498,7 @@ static void remove_vqs(struct virtio_device *vdev)
 {
 	int i;
 
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	for (i = 0; i < ARRAY_SIZE(hwsim_vqs); i++) {
 		struct virtqueue *vq = hwsim_vqs[i];
diff --git a/drivers/nvdimm/virtio_pmem.c b/drivers/nvdimm/virtio_pmem.c
index 726c7354d465..995b6cdc67ed 100644
--- a/drivers/nvdimm/virtio_pmem.c
+++ b/drivers/nvdimm/virtio_pmem.c
@@ -105,7 +105,7 @@ static void virtio_pmem_remove(struct virtio_device *vdev)
 
 	nvdimm_bus_unregister(nvdimm_bus);
 	vdev->config->del_vqs(vdev);
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 }
 
 static struct virtio_driver virtio_pmem_driver = {
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index c37451512835..ac764e04c898 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -1024,7 +1024,7 @@ static void rpmsg_remove(struct virtio_device *vdev)
 	size_t total_buf_space = vrp->num_bufs * vrp->buf_size;
 	int ret;
 
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 
 	ret = device_for_each_child(&vdev->dev, NULL, rpmsg_remove_device);
 	if (ret)
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 65c642b24ecf..0e6110da69e7 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -778,7 +778,7 @@ static void virtscsi_init_vq(struct virtio_scsi_vq *virtscsi_vq,
 static void virtscsi_remove_vqs(struct virtio_device *vdev)
 {
 	/* Stop all the virtqueues. */
-	vdev->config->reset(vdev);
+	virtio_reset_device(vdev);
 	vdev->config->del_vqs(vdev);
 }
 
diff --git a/drivers/vdpa/alibaba/eni_vdpa.c b/drivers/vdpa/alibaba/eni_vdpa.c
index 3f788794571a..f480d54f308c 100644
--- a/drivers/vdpa/alibaba/eni_vdpa.c
+++ b/drivers/vdpa/alibaba/eni_vdpa.c
@@ -58,7 +58,7 @@ static struct virtio_pci_legacy_device *vdpa_to_ldev(struct vdpa_device *vdpa)
 	return &eni_vdpa->ldev;
 }
 
-static u64 eni_vdpa_get_features(struct vdpa_device *vdpa)
+static u64 eni_vdpa_get_device_features(struct vdpa_device *vdpa)
 {
 	struct virtio_pci_legacy_device *ldev = vdpa_to_ldev(vdpa);
 	u64 features = vp_legacy_get_features(ldev);
@@ -69,7 +69,7 @@ static u64 eni_vdpa_get_features(struct vdpa_device *vdpa)
 	return features;
 }
 
-static int eni_vdpa_set_features(struct vdpa_device *vdpa, u64 features)
+static int eni_vdpa_set_driver_features(struct vdpa_device *vdpa, u64 features)
 {
 	struct virtio_pci_legacy_device *ldev = vdpa_to_ldev(vdpa);
 
@@ -84,6 +84,13 @@ static int eni_vdpa_set_features(struct vdpa_device *vdpa, u64 features)
 	return 0;
 }
 
+static u64 eni_vdpa_get_driver_features(struct vdpa_device *vdpa)
+{
+	struct virtio_pci_legacy_device *ldev = vdpa_to_ldev(vdpa);
+
+	return vp_legacy_get_driver_features(ldev);
+}
+
 static u8 eni_vdpa_get_status(struct vdpa_device *vdpa)
 {
 	struct virtio_pci_legacy_device *ldev = vdpa_to_ldev(vdpa);
@@ -401,8 +408,9 @@ static void eni_vdpa_set_config_cb(struct vdpa_device *vdpa,
 }
 
 static const struct vdpa_config_ops eni_vdpa_ops = {
-	.get_features	= eni_vdpa_get_features,
-	.set_features	= eni_vdpa_set_features,
+	.get_device_features = eni_vdpa_get_device_features,
+	.set_driver_features = eni_vdpa_set_driver_features,
+	.get_driver_features = eni_vdpa_get_driver_features,
 	.get_status	= eni_vdpa_get_status,
 	.set_status	= eni_vdpa_set_status,
 	.reset		= eni_vdpa_reset,
@@ -450,11 +458,6 @@ static u16 eni_vdpa_get_num_queues(struct eni_vdpa *eni_vdpa)
 	return num;
 }
 
-static void eni_vdpa_free_irq_vectors(void *data)
-{
-	pci_free_irq_vectors(data);
-}
-
 static int eni_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct device *dev = &pdev->dev;
@@ -488,13 +491,6 @@ static int eni_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	eni_vdpa->vdpa.dma_dev = &pdev->dev;
 	eni_vdpa->queues = eni_vdpa_get_num_queues(eni_vdpa);
 
-	ret = devm_add_action_or_reset(dev, eni_vdpa_free_irq_vectors, pdev);
-	if (ret) {
-		ENI_ERR(pdev,
-			"failed for adding devres for freeing irq vectors\n");
-		goto err;
-	}
-
 	eni_vdpa->vring = devm_kcalloc(&pdev->dev, eni_vdpa->queues,
 				      sizeof(*eni_vdpa->vring),
 				      GFP_KERNEL);
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c
index 2808f1ba9f7b..7d41dfe48ade 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.c
+++ b/drivers/vdpa/ifcvf/ifcvf_base.c
@@ -143,8 +143,8 @@ int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *pdev)
 			IFCVF_DBG(pdev, "hw->isr = %p\n", hw->isr);
 			break;
 		case VIRTIO_PCI_CAP_DEVICE_CFG:
-			hw->net_cfg = get_cap_addr(hw, &cap);
-			IFCVF_DBG(pdev, "hw->net_cfg = %p\n", hw->net_cfg);
+			hw->dev_cfg = get_cap_addr(hw, &cap);
+			IFCVF_DBG(pdev, "hw->dev_cfg = %p\n", hw->dev_cfg);
 			break;
 		}
 
@@ -153,7 +153,7 @@ next:
 	}
 
 	if (hw->common_cfg == NULL || hw->notify_base == NULL ||
-	    hw->isr == NULL || hw->net_cfg == NULL) {
+	    hw->isr == NULL || hw->dev_cfg == NULL) {
 		IFCVF_ERR(pdev, "Incomplete PCI capabilities\n");
 		return -EIO;
 	}
@@ -174,7 +174,7 @@ next:
 	IFCVF_DBG(pdev,
 		  "PCI capability mapping: common cfg: %p, notify base: %p\n, isr cfg: %p, device cfg: %p, multiplier: %u\n",
 		  hw->common_cfg, hw->notify_base, hw->isr,
-		  hw->net_cfg, hw->notify_off_multiplier);
+		  hw->dev_cfg, hw->notify_off_multiplier);
 
 	return 0;
 }
@@ -242,33 +242,54 @@ int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features)
 	return 0;
 }
 
-void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset,
+u32 ifcvf_get_config_size(struct ifcvf_hw *hw)
+{
+	struct ifcvf_adapter *adapter;
+	u32 config_size;
+
+	adapter = vf_to_adapter(hw);
+	switch (hw->dev_type) {
+	case VIRTIO_ID_NET:
+		config_size = sizeof(struct virtio_net_config);
+		break;
+	case VIRTIO_ID_BLOCK:
+		config_size = sizeof(struct virtio_blk_config);
+		break;
+	default:
+		config_size = 0;
+		IFCVF_ERR(adapter->pdev, "VIRTIO ID %u not supported\n", hw->dev_type);
+	}
+
+	return config_size;
+}
+
+void ifcvf_read_dev_config(struct ifcvf_hw *hw, u64 offset,
 			   void *dst, int length)
 {
 	u8 old_gen, new_gen, *p;
 	int i;
 
-	WARN_ON(offset + length > sizeof(struct virtio_net_config));
+	WARN_ON(offset + length > hw->config_size);
 	do {
 		old_gen = ifc_ioread8(&hw->common_cfg->config_generation);
 		p = dst;
 		for (i = 0; i < length; i++)
-			*p++ = ifc_ioread8(hw->net_cfg + offset + i);
+			*p++ = ifc_ioread8(hw->dev_cfg + offset + i);
 
 		new_gen = ifc_ioread8(&hw->common_cfg->config_generation);
 	} while (old_gen != new_gen);
 }
 
-void ifcvf_write_net_config(struct ifcvf_hw *hw, u64 offset,
+void ifcvf_write_dev_config(struct ifcvf_hw *hw, u64 offset,
 			    const void *src, int length)
 {
 	const u8 *p;
 	int i;
 
 	p = src;
-	WARN_ON(offset + length > sizeof(struct virtio_net_config));
+	WARN_ON(offset + length > hw->config_size);
 	for (i = 0; i < length; i++)
-		ifc_iowrite8(*p++, hw->net_cfg + offset + i);
+		ifc_iowrite8(*p++, hw->dev_cfg + offset + i);
 }
 
 static void ifcvf_set_features(struct ifcvf_hw *hw, u64 features)
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
index 09918af3ecf8..c486873f370a 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.h
+++ b/drivers/vdpa/ifcvf/ifcvf_base.h
@@ -71,12 +71,14 @@ struct ifcvf_hw {
 	u64 hw_features;
 	u32 dev_type;
 	struct virtio_pci_common_cfg __iomem *common_cfg;
-	void __iomem *net_cfg;
+	void __iomem *dev_cfg;
 	struct vring_info vring[IFCVF_MAX_QUEUES];
 	void __iomem * const *base;
 	char config_msix_name[256];
 	struct vdpa_callback config_cb;
 	unsigned int config_irq;
+	/* virtio-net or virtio-blk device config size */
+	u32 config_size;
 };
 
 struct ifcvf_adapter {
@@ -105,9 +107,9 @@ int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *dev);
 int ifcvf_start_hw(struct ifcvf_hw *hw);
 void ifcvf_stop_hw(struct ifcvf_hw *hw);
 void ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid);
-void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset,
+void ifcvf_read_dev_config(struct ifcvf_hw *hw, u64 offset,
 			   void *dst, int length);
-void ifcvf_write_net_config(struct ifcvf_hw *hw, u64 offset,
+void ifcvf_write_dev_config(struct ifcvf_hw *hw, u64 offset,
 			    const void *src, int length);
 u8 ifcvf_get_status(struct ifcvf_hw *hw);
 void ifcvf_set_status(struct ifcvf_hw *hw, u8 status);
@@ -120,4 +122,5 @@ u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid);
 int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num);
 struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw);
 int ifcvf_probed_virtio_net(struct ifcvf_hw *hw);
+u32 ifcvf_get_config_size(struct ifcvf_hw *hw);
 #endif /* _IFCVF_H_ */
diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index 6dc75ca70b37..d1a6b5ab543c 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -169,7 +169,7 @@ static struct ifcvf_hw *vdpa_to_vf(struct vdpa_device *vdpa_dev)
 	return &adapter->vf;
 }
 
-static u64 ifcvf_vdpa_get_features(struct vdpa_device *vdpa_dev)
+static u64 ifcvf_vdpa_get_device_features(struct vdpa_device *vdpa_dev)
 {
 	struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev);
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
@@ -187,7 +187,7 @@ static u64 ifcvf_vdpa_get_features(struct vdpa_device *vdpa_dev)
 	return features;
 }
 
-static int ifcvf_vdpa_set_features(struct vdpa_device *vdpa_dev, u64 features)
+static int ifcvf_vdpa_set_driver_features(struct vdpa_device *vdpa_dev, u64 features)
 {
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
 	int ret;
@@ -201,6 +201,13 @@ static int ifcvf_vdpa_set_features(struct vdpa_device *vdpa_dev, u64 features)
 	return 0;
 }
 
+static u64 ifcvf_vdpa_get_driver_features(struct vdpa_device *vdpa_dev)
+{
+	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
+
+	return vf->req_features;
+}
+
 static u8 ifcvf_vdpa_get_status(struct vdpa_device *vdpa_dev)
 {
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
@@ -366,24 +373,9 @@ static u32 ifcvf_vdpa_get_vq_align(struct vdpa_device *vdpa_dev)
 
 static size_t ifcvf_vdpa_get_config_size(struct vdpa_device *vdpa_dev)
 {
-	struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev);
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
-	struct pci_dev *pdev = adapter->pdev;
-	size_t size;
-
-	switch (vf->dev_type) {
-	case VIRTIO_ID_NET:
-		size = sizeof(struct virtio_net_config);
-		break;
-	case VIRTIO_ID_BLOCK:
-		size = sizeof(struct virtio_blk_config);
-		break;
-	default:
-		size = 0;
-		IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", vf->dev_type);
-	}
 
-	return size;
+	return  vf->config_size;
 }
 
 static void ifcvf_vdpa_get_config(struct vdpa_device *vdpa_dev,
@@ -392,8 +384,7 @@ static void ifcvf_vdpa_get_config(struct vdpa_device *vdpa_dev,
 {
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
 
-	WARN_ON(offset + len > sizeof(struct virtio_net_config));
-	ifcvf_read_net_config(vf, offset, buf, len);
+	ifcvf_read_dev_config(vf, offset, buf, len);
 }
 
 static void ifcvf_vdpa_set_config(struct vdpa_device *vdpa_dev,
@@ -402,8 +393,7 @@ static void ifcvf_vdpa_set_config(struct vdpa_device *vdpa_dev,
 {
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
 
-	WARN_ON(offset + len > sizeof(struct virtio_net_config));
-	ifcvf_write_net_config(vf, offset, buf, len);
+	ifcvf_write_dev_config(vf, offset, buf, len);
 }
 
 static void ifcvf_vdpa_set_config_cb(struct vdpa_device *vdpa_dev,
@@ -443,8 +433,9 @@ static struct vdpa_notification_area ifcvf_get_vq_notification(struct vdpa_devic
  * implemented set_map()/dma_map()/dma_unmap()
  */
 static const struct vdpa_config_ops ifc_vdpa_ops = {
-	.get_features	= ifcvf_vdpa_get_features,
-	.set_features	= ifcvf_vdpa_set_features,
+	.get_device_features = ifcvf_vdpa_get_device_features,
+	.set_driver_features = ifcvf_vdpa_set_driver_features,
+	.get_driver_features = ifcvf_vdpa_get_driver_features,
 	.get_status	= ifcvf_vdpa_get_status,
 	.set_status	= ifcvf_vdpa_set_status,
 	.reset		= ifcvf_vdpa_reset,
@@ -542,6 +533,7 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 		vf->vring[i].irq = -EINVAL;
 
 	vf->hw_features = ifcvf_get_hw_features(vf);
+	vf->config_size = ifcvf_get_config_size(vf);
 
 	adapter->vdpa.mdev = &ifcvf_mgmt_dev->mdev;
 	ret = _vdpa_register_device(&adapter->vdpa, vf->nr_vring);
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index cf59f7e17c6d..f648f1c54a0f 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -131,25 +131,24 @@ struct mlx5_vdpa_virtqueue {
 	struct mlx5_vq_restore_info ri;
 };
 
-/* We will remove this limitation once mlx5_vdpa_alloc_resources()
- * provides for driver space allocation
- */
-#define MLX5_MAX_SUPPORTED_VQS 16
-
 static bool is_index_valid(struct mlx5_vdpa_dev *mvdev, u16 idx)
 {
-	if (unlikely(idx > mvdev->max_idx))
-		return false;
+	if (!(mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_MQ))) {
+		if (!(mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)))
+			return idx < 2;
+		else
+			return idx < 3;
+	}
 
-	return true;
+	return idx <= mvdev->max_idx;
 }
 
 struct mlx5_vdpa_net {
 	struct mlx5_vdpa_dev mvdev;
 	struct mlx5_vdpa_net_resources res;
 	struct virtio_net_config config;
-	struct mlx5_vdpa_virtqueue vqs[MLX5_MAX_SUPPORTED_VQS];
-	struct vdpa_callback event_cbs[MLX5_MAX_SUPPORTED_VQS + 1];
+	struct mlx5_vdpa_virtqueue *vqs;
+	struct vdpa_callback *event_cbs;
 
 	/* Serialize vq resources creation and destruction. This is required
 	 * since memory map might change and we need to destroy and create
@@ -876,8 +875,6 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtque
 	MLX5_SET(virtio_q, vq_ctx, umem_3_id, mvq->umem3.id);
 	MLX5_SET(virtio_q, vq_ctx, umem_3_size, mvq->umem3.size);
 	MLX5_SET(virtio_q, vq_ctx, pd, ndev->mvdev.res.pdn);
-	if (MLX5_CAP_DEV_VDPA_EMULATION(ndev->mvdev.mdev, eth_frame_offload_type))
-		MLX5_SET(virtio_q, vq_ctx, virtio_version_1_0, 1);
 
 	err = mlx5_cmd_exec(ndev->mvdev.mdev, in, inlen, out, sizeof(out));
 	if (err)
@@ -1218,7 +1215,7 @@ static void suspend_vqs(struct mlx5_vdpa_net *ndev)
 {
 	int i;
 
-	for (i = 0; i < MLX5_MAX_SUPPORTED_VQS; i++)
+	for (i = 0; i < ndev->mvdev.max_vqs; i++)
 		suspend_vq(ndev, &ndev->vqs[i]);
 }
 
@@ -1244,8 +1241,14 @@ static int create_rqt(struct mlx5_vdpa_net *ndev)
 	void *in;
 	int i, j;
 	int err;
+	int num;
 
-	max_rqt = min_t(int, MLX5_MAX_SUPPORTED_VQS / 2,
+	if (!(ndev->mvdev.actual_features & BIT_ULL(VIRTIO_NET_F_MQ)))
+		num = 1;
+	else
+		num = ndev->cur_num_vqs / 2;
+
+	max_rqt = min_t(int, roundup_pow_of_two(num),
 			1 << MLX5_CAP_GEN(ndev->mvdev.mdev, log_max_rqt_size));
 	if (max_rqt < 1)