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authorjhb <jhb@FreeBSD.org>2016-05-03 19:45:24 +0000
committerjhb <jhb@FreeBSD.org>2016-05-03 19:45:24 +0000
commitaa744856810115af0244cfb9887d1e1667fcf415 (patch)
tree7087b9bb901720b726eabac48f582ae5c14c55c8 /rescue/README
parent804dbb21fcfa6e9565452f746b24e4f9f5fa84ec (diff)
downloadFreeBSD-src-aa744856810115af0244cfb9887d1e1667fcf415.zip
FreeBSD-src-aa744856810115af0244cfb9887d1e1667fcf415.tar.gz
Save and restore SRIOV-related config registers.
Save the value of the IOV control and page size registers and restore them (along with the VF count) in pci_cfg_save/pci_cfg_restore. This ensures ARI remains enabled if a PF driver resets itself during the PCI_IOV_INIT callback. This might also properly restore SRIOV state across suspend/resume. Reviewed by: rstone, vangyzen Differential Revision: https://reviews.freebsd.org/D6192
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