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| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2021-06-02 16:45:49 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-03 04:50:51 -0400 |
| commit | 04c6ad8f22da9394687d30a0d5b5477c075e2833 (patch) | |
| tree | 661e8a427a769dbddafb1760ed7d013465ee75da /drivers/vdpa | |
| parent | e22626a876a086e1ce268ab31d1826dfc4c77550 (diff) | |
| download | linux-04c6ad8f22da9394687d30a0d5b5477c075e2833.tar.gz linux-04c6ad8f22da9394687d30a0d5b5477c075e2833.tar.bz2 linux-04c6ad8f22da9394687d30a0d5b5477c075e2833.zip | |
vDPA/ifcvf: record virtio notify base
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>
Link: https://lore.kernel.org/r/20210602084550.289599-2-lingshan.zhu@intel.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.c | 4 | ||||
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.h | 2 |
2 files changed, 6 insertions, 0 deletions
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 @@ next: 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; |