diff options
| author | Oliver O'Halloran <oohall@gmail.com> | 2020-07-22 09:57:06 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-26 16:34:22 +0300 |
| commit | fac248f8119170e3f8f54900985498ff6ee560bf (patch) | |
| tree | 36dc8b78f2788a7d718a7a02cdadddc6a6fa9b54 /arch/powerpc/platforms/powernv/pci-sriov.c | |
| parent | ff79e11af0979b25ecb38e4c843779d4a759a4e2 (diff) | |
| download | linux-fac248f8119170e3f8f54900985498ff6ee560bf.tar.xz | |
powerpc/powernv/sriov: Rename truncate_iov
This prevents SR-IOV being used by making the SR-IOV BAR resources
unallocatable. Rename it to reflect what it actually does.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200722065715.1432738-7-oohall@gmail.com
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-sriov.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-sriov.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-sriov.c b/arch/powerpc/platforms/powernv/pci-sriov.c index 8f5f0f50281e..10ebdf05aeb8 100644 --- a/arch/powerpc/platforms/powernv/pci-sriov.c +++ b/arch/powerpc/platforms/powernv/pci-sriov.c @@ -155,7 +155,7 @@ static void pnv_pci_ioda_fixup_iov_resources(struct pci_dev *pdev) iov = kzalloc(sizeof(*iov), GFP_KERNEL); if (!iov) - goto truncate_iov; + goto disable_iov; pdev->dev.archdata.iov_data = iov; total_vfs = pci_sriov_get_totalvfs(pdev); @@ -169,7 +169,7 @@ static void pnv_pci_ioda_fixup_iov_resources(struct pci_dev *pdev) if (!pnv_pci_is_m64_flags(res->flags)) { dev_warn(&pdev->dev, "Don't support SR-IOV with non M64 VF BAR%d: %pR. \n", i, res); - goto truncate_iov; + goto disable_iov; } total_vf_bar_sz += pci_iov_resource_size(pdev, @@ -208,7 +208,8 @@ static void pnv_pci_ioda_fixup_iov_resources(struct pci_dev *pdev) * mode is 32MB. */ if (iov->m64_single_mode && (size < SZ_32M)) - goto truncate_iov; + goto disable_iov; + dev_dbg(&pdev->dev, " Fixing VF BAR%d: %pR to\n", i, res); res->end = res->start + size * mul - 1; dev_dbg(&pdev->dev, " %pR\n", res); @@ -219,8 +220,8 @@ static void pnv_pci_ioda_fixup_iov_resources(struct pci_dev *pdev) return; -truncate_iov: - /* To save MMIO space, IOV BAR is truncated. */ +disable_iov: + /* Save ourselves some MMIO space by disabling the unusable BARs */ for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) { res = &pdev->resource[i + PCI_IOV_RESOURCES]; res->flags = 0; |