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hv: initialize VF BARs

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The VF BARs are initialized by its PF SRIOV capability

Tracked-On: #4433

Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yuan Liu
2020-03-09 22:23:18 +08:00
committed by wenlingz
parent ddd6253a4c
commit d67d0538e6
3 changed files with 36 additions and 20 deletions
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38
hypervisor/dm/vpci/vsriov.c
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@@ -81,7 +81,7 @@ static void init_sriov_vf_bar(struct pci_vdev *pf_vdev)
/**
* @pre pf_vdev != NULL
*/
static void create_vf(struct pci_vdev *pf_vdev, union pci_bdf vf_bdf)
static void create_vf(struct pci_vdev *pf_vdev, union pci_bdf vf_bdf, uint16_t vf_id)
{
struct pci_pdev *vf_pdev;
struct pci_vdev *vf_vdev = NULL;
@@ -112,6 +112,31 @@ static void create_vf(struct pci_vdev *pf_vdev, union pci_bdf vf_bdf)
pci_pdev_write_cfg(pf_vdev->bdf, pf_vdev->sriov.capoff + PCIR_SRIOV_CONTROL, 2U, control);
pr_err("PF %x:%x.%x can't creat VF, unset VF_ENABLE",
pf_vdev->bdf.bits.b, pf_vdev->bdf.bits.d, pf_vdev->bdf.bits.f);
} else {
uint16_t bar_idx;
struct pci_vbar *vf_vbar;
/* VF bars information from its PF SRIOV capability, no need to access physical device */
vf_vdev->nr_bars = PCI_BAR_COUNT;
for (bar_idx = 0U; bar_idx < PCI_BAR_COUNT; bar_idx++) {
vf_vbar = &vf_vdev->vbars[bar_idx];
*vf_vbar = vf_vdev->phyfun->sriov.vbars[bar_idx];
vf_vbar->base_hpa += (vf_vbar->size * vf_id);
vf_vbar->base = vf_vbar->base_hpa;
if (has_msix_cap(vf_vdev) && (bar_idx == vf_vdev->msix.table_bar)) {
vf_vdev->msix.mmio_hpa = vf_vbar->base_hpa;
vf_vdev->msix.mmio_size = vf_vbar->size;
}
/*
* VF BARs value are zero and read only, according to PCI Express
* Base 4.0 chapter 9.3.4.1.11, the VF
*/
pci_vdev_write_vcfg(vf_vdev, pci_bar_offset(bar_idx), 4U, 0U);
}
if (has_msix_cap(vf_vdev)) {
vdev_pt_map_msix(vf_vdev, false);
}
}
}
@@ -170,7 +195,7 @@ static void enable_vf(struct pci_vdev *pf_vdev)
/* if one VF has never been created then create new pdev/vdev for this VF */
if (pci_find_vdev(&pf_vdev->vpci->vm->vpci, vf_bdf) == NULL) {
create_vf(pf_vdev, vf_bdf);
create_vf(pf_vdev, vf_bdf, idx);
}
}
} else {
@@ -270,12 +295,3 @@ uint32_t sriov_bar_offset(const struct pci_vdev *vdev, uint32_t bar_idx)
{
return (vdev->sriov.capoff + PCIR_SRIOV_VF_BAR_OFF + (bar_idx << 2U));
}
/**
* @pre vdev != NULL
*/
void init_sriov_vf_vdev(struct pci_vdev *vdev)
{
/* Implementation in next path */
(void)vdev;
}