Just as _vdpa_register_device taking @nvqs as the number of queues to feed userspace inquery via vdpa_dev_fill(), we can follow the same to stash config attributes in struct vdpa_device at the time of vdpa registration.
Signed-off-by: Si-Wei Liu <[email protected]> --- drivers/vdpa/ifcvf/ifcvf_main.c | 2 +- drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 +- drivers/vdpa/vdpa.c | 15 +++++++++++---- drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 2 +- drivers/vdpa/vdpa_sim/vdpa_sim_net.c | 2 +- drivers/vdpa/vdpa_user/vduse_dev.c | 2 +- drivers/vdpa/virtio_pci/vp_vdpa.c | 3 ++- include/linux/vdpa.h | 3 ++- 8 files changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index f9c0044..c54ab2c 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -771,7 +771,7 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, else ret = dev_set_name(&vdpa_dev->dev, "vdpa%u", vdpa_dev->index); - ret = _vdpa_register_device(&adapter->vdpa, vf->nr_vring); + ret = _vdpa_register_device(&adapter->vdpa, vf->nr_vring, config); if (ret) { put_device(&adapter->vdpa.dev); IFCVF_ERR(pdev, "Failed to register to vDPA bus"); diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 9091336..376082e 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -3206,7 +3206,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, mlx5_notifier_register(mdev, &ndev->nb); ndev->nb_registered = true; mvdev->vdev.mdev = &mgtdev->mgtdev; - err = _vdpa_register_device(&mvdev->vdev, max_vqs + 1); + err = _vdpa_register_device(&mvdev->vdev, max_vqs + 1, add_config); if (err) goto err_reg; diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index febdc99..566c1c6 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -215,11 +215,16 @@ static int vdpa_name_match(struct device *dev, const void *data) return (strcmp(dev_name(&vdev->dev), data) == 0); } -static int __vdpa_register_device(struct vdpa_device *vdev, u32 nvqs) +static int __vdpa_register_device(struct vdpa_device *vdev, u32 nvqs, + const struct vdpa_dev_set_config *cfg) { struct device *dev; vdev->nvqs = nvqs; + if (cfg) + vdev->vdev_cfg = *cfg; + else + vdev->vdev_cfg.mask = 0ULL; lockdep_assert_held(&vdpa_dev_lock); dev = bus_find_device(&vdpa_bus, NULL, dev_name(&vdev->dev), vdpa_name_match); @@ -237,15 +242,17 @@ static int __vdpa_register_device(struct vdpa_device *vdev, u32 nvqs) * callback after setting up valid mgmtdev for this vdpa device. * @vdev: the vdpa device to be registered to vDPA bus * @nvqs: number of virtqueues supported by this device + * @cfg: initial config on vdpa device creation * * Return: Returns an error when fail to add device to vDPA bus */ -int _vdpa_register_device(struct vdpa_device *vdev, u32 nvqs) +int _vdpa_register_device(struct vdpa_device *vdev, u32 nvqs, + const struct vdpa_dev_set_config *cfg) { if (!vdev->mdev) return -EINVAL; - return __vdpa_register_device(vdev, nvqs); + return __vdpa_register_device(vdev, nvqs, cfg); } EXPORT_SYMBOL_GPL(_vdpa_register_device); @@ -262,7 +269,7 @@ int vdpa_register_device(struct vdpa_device *vdev, u32 nvqs) int err; down_write(&vdpa_dev_lock); - err = __vdpa_register_device(vdev, nvqs); + err = __vdpa_register_device(vdev, nvqs, NULL); up_write(&vdpa_dev_lock); return err; } diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c index c6db1a1..5e1cebc 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c @@ -387,7 +387,7 @@ static int vdpasim_blk_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, if (IS_ERR(simdev)) return PTR_ERR(simdev); - ret = _vdpa_register_device(&simdev->vdpa, VDPASIM_BLK_VQ_NUM); + ret = _vdpa_register_device(&simdev->vdpa, VDPASIM_BLK_VQ_NUM, config); if (ret) goto put_dev; diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c index c3cb225..06ef5a0 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c @@ -260,7 +260,7 @@ static int vdpasim_net_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, vdpasim_net_setup_config(simdev, config); - ret = _vdpa_register_device(&simdev->vdpa, VDPASIM_NET_VQ_NUM); + ret = _vdpa_register_device(&simdev->vdpa, VDPASIM_NET_VQ_NUM, config); if (ret) goto reg_err; diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c index 35dceee..6530fd2 100644 --- a/drivers/vdpa/vdpa_user/vduse_dev.c +++ b/drivers/vdpa/vdpa_user/vduse_dev.c @@ -1713,7 +1713,7 @@ static int vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, if (ret) return ret; - ret = _vdpa_register_device(&dev->vdev->vdpa, dev->vq_num); + ret = _vdpa_register_device(&dev->vdev->vdpa, dev->vq_num, config); if (ret) { put_device(&dev->vdev->vdpa.dev); return ret; diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c index d448db0..ffdc90e 100644 --- a/drivers/vdpa/virtio_pci/vp_vdpa.c +++ b/drivers/vdpa/virtio_pci/vp_vdpa.c @@ -538,7 +538,8 @@ static int vp_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, vp_vdpa->config_irq = VIRTIO_MSI_NO_VECTOR; vp_vdpa->vdpa.mdev = &vp_vdpa_mgtdev->mgtdev; - ret = _vdpa_register_device(&vp_vdpa->vdpa, vp_vdpa->queues); + ret = _vdpa_register_device(&vp_vdpa->vdpa, vp_vdpa->queues, + add_config); if (ret) { dev_err(&pdev->dev, "Failed to register to vdpa bus\n"); goto err; diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index f1838f5..b9d50e8 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -381,7 +381,8 @@ struct vdpa_device *__vdpa_alloc_device(struct device *parent, int vdpa_register_device(struct vdpa_device *vdev, u32 nvqs); void vdpa_unregister_device(struct vdpa_device *vdev); -int _vdpa_register_device(struct vdpa_device *vdev, u32 nvqs); +int _vdpa_register_device(struct vdpa_device *vdev, u32 nvqs, + const struct vdpa_dev_set_config *cfg); void _vdpa_unregister_device(struct vdpa_device *vdev); /** -- 1.8.3.1 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
