| Message ID | 20210601062850.4547-2-lingshan.zhu@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | vDPA/ifcvf: implement doorbell mapping feature | expand |
在 2021/6/1 下午2:28, Zhu Lingshan 写道: > This commit records virtio notify base physical addr and > calculate doorbell physical address for vqs. > > Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> Acked-by: Jason Wang <jasowang@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;
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;
This commit records virtio notify base physical addr and calculate doorbell physical address for vqs. Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com> --- drivers/vdpa/ifcvf/ifcvf_base.c | 4 ++++ drivers/vdpa/ifcvf/ifcvf_base.h | 2 ++ 2 files changed, 6 insertions(+)