? 2021/6/1 ??2:28, Zhu Lingshan ??:> This commit records virtio notify base physical addr and
> calculate doorbell physical address for vqs.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
Acked-by: Jason Wang <jasowang at redhat.com>
> ---
> drivers/vdpa/ifcvf/ifcvf_base.c | 4 ++++
> drivers/vdpa/ifcvf/ifcvf_base.h | 2 ++
> 2 files changed, 6 insertions(+)
>
> diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c
b/drivers/vdpa/ifcvf/ifcvf_base.c
> index 1a661ab45af5..6e197fe0fcf9 100644
> --- a/drivers/vdpa/ifcvf/ifcvf_base.c
> +++ b/drivers/vdpa/ifcvf/ifcvf_base.c
> @@ -133,6 +133,8 @@ int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev
*pdev)
> &hw->notify_off_multiplier);
> hw->notify_bar = cap.bar;
> hw->notify_base = get_cap_addr(hw, &cap);
> + hw->notify_base_pa = pci_resource_start(pdev, cap.bar) +
> + le32_to_cpu(cap.offset);
> IFCVF_DBG(pdev, "hw->notify_base = %p\n",
> hw->notify_base);
> break;
> @@ -161,6 +163,8 @@ int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev
*pdev)
> notify_off = ifc_ioread16(&hw->common_cfg->queue_notify_off);
> hw->vring[i].notify_addr = hw->notify_base +
> notify_off * hw->notify_off_multiplier;
> + hw->vring[i].notify_pa = hw->notify_base_pa +
> + notify_off * hw->notify_off_multiplier;
> }
>
> hw->lm_cfg = hw->base[IFCVF_LM_BAR];
> diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h
b/drivers/vdpa/ifcvf/ifcvf_base.h
> index 0111bfdeb342..447f4ad9c0bf 100644
> --- a/drivers/vdpa/ifcvf/ifcvf_base.h
> +++ b/drivers/vdpa/ifcvf/ifcvf_base.h
> @@ -73,6 +73,7 @@ struct vring_info {
> u16 last_avail_idx;
> bool ready;
> void __iomem *notify_addr;
> + phys_addr_t notify_pa;
> u32 irq;
> struct vdpa_callback cb;
> char msix_name[256];
> @@ -87,6 +88,7 @@ struct ifcvf_hw {
> u8 notify_bar;
> /* Notificaiton bar address */
> void __iomem *notify_base;
> + phys_addr_t notify_base_pa;
> u32 notify_off_multiplier;
> u64 req_features;
> u64 hw_features;