git: kernel - Disable MSIX mode in pci_teardown_msix()
Matthew Dillon
dillon at crater.dragonflybsd.org
Tue Jul 28 13:39:22 PDT 2020
commit 66fa3dc12ad6849b85e194517655f9b382df5ace
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Tue Jul 28 13:34:02 2020 -0700
kernel - Disable MSIX mode in pci_teardown_msix()
* Disable MSIX mode when pci_teardown_msix() is called. This fixes
issues on some BIOSes which do not fully clear the PCI hardware
configuration when warm-booting.
In particular, the NVME controller appears to have this issue with
some laptops (HP Intel gen 9 and gen 10 laptops) whereby the MSI
interrupt winds up being stuck on reboot.
Summary of changes:
sys/bus/pci/pci.c | 1 +
1 file changed, 1 insertion(+)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/66fa3dc12ad6849b85e194517655f9b382df5ace
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