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H A D | iov.c | b3908644 Thu Oct 29 16:21:16 CDT 2015 Alexander Duyck <aduyck@mirantis.com> PCI: Wait 1 second between disabling VFs and clearing NumVFs
Per sec 3.3.3.1 of the SR-IOV spec, r1.1, we must allow 1.0s after clearing VF Enable before reading any field in the SR-IOV Extended Capability.
Wait 1 second before calling pci_iov_set_numvfs(), which reads PCI_SRIOV_VF_OFFSET and PCI_SRIOV_VF_STRIDE after it sets PCI_SRIOV_NUM_VF.
[bhelgaas: split to separate patch for reviewability, add spec reference] Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> b3908644 Thu Oct 29 16:21:16 CDT 2015 Alexander Duyck <aduyck@mirantis.com> PCI: Wait 1 second between disabling VFs and clearing NumVFs Per sec 3.3.3.1 of the SR-IOV spec, r1.1, we must allow 1.0s after clearing VF Enable before reading any field in the SR-IOV Extended Capability. Wait 1 second before calling pci_iov_set_numvfs(), which reads PCI_SRIOV_VF_OFFSET and PCI_SRIOV_VF_STRIDE after it sets PCI_SRIOV_NUM_VF. [bhelgaas: split to separate patch for reviewability, add spec reference] Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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