linux/drivers/pci
Bjorn Helgaas 302b84e84d Revert "PCI: Mark LSI FW643 to avoid bus reset"
This reverts commit 29a43dc130.

29a43dc130 ("PCI: Mark LSI FW643 to avoid bus reset") by Edmund was based
on the assumption that the LSI / Agere FW643 has a defect such that it
can't recover after a Secondary Bus Reset (SBR).

But Takashi Sakamoto reported that SBR works fine on this same FW643 device
in an AMD Ryzen 5 2400G system, so apparently there is some other aspect of
Edmund's system that accounts for the issue.

The down side of 29a43dc130 is that when the FW643 is assigned to a VM,
avoiding the SBR means we leak data out of the VM.

Revert 29a43dc130 until we figure out a better solution.  In the
meantime, we can use the sysfs "reset_method" interface to restrict the
available reset methods.

Link: https://lore.kernel.org/r/20240328212302.1582483-1-helgaas@kernel.org
Fixes: 29a43dc130 ("PCI: Mark LSI FW643 to avoid bus reset")
Reported-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20240325012135.36861-1-o-takashi@sakamocchi.jp
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
2024-03-29 11:57:12 -05:00
..
controller pci-v6.9-changes 2024-03-14 10:58:27 -07:00
endpoint PCI: endpoint: Drop only_64bit on reserved BARs 2024-02-16 20:31:10 +05:30
hotplug s390/pci: introduce lock to synchronize state of zpci_dev's 2024-02-20 14:37:32 +01:00
msi PCI/MSI: Prevent MSI hardware interrupt number truncation 2024-02-19 16:11:01 +01:00
pcie pci-v6.9-changes 2024-03-14 10:58:27 -07:00
switch PCI: switchtec: Fix an error handling path in switchtec_pci_probe() 2024-02-08 15:35:38 -06:00
access.c PCI: Move pci_clear_and_set_dword() helper to PCI header 2023-12-13 13:35:41 +00:00
ats.c PCI/ATS: Use FIELD_GET() 2023-10-24 16:55:45 -05:00
bus.c PCI/ASPM: Fix deadlock when enabling ASPM 2024-01-31 09:03:51 -06:00
devres.c PCI: Move devres code from pci.c to devres.c 2024-02-12 10:36:17 -06:00
doe.c PCI/DOE: Fix destroy_work_on_stack() race 2023-07-27 15:20:47 -05:00
ecam.c
host-bridge.c
iomap.c PCI: Move pci_iomap.c to drivers/pci/ 2024-02-12 10:35:40 -06:00
iov.c PCI: Use resource names in PCI log messages 2023-12-15 17:28:42 -06:00
irq.c PCI: Place interrupt related code into irq.c 2024-01-29 17:01:31 -06:00
Kconfig PCI: Move pci_iomap.c to drivers/pci/ 2024-02-12 10:35:40 -06:00
Makefile Merge branch 'pci/sysfs' 2024-03-12 12:14:23 -05:00
mmap.c PCI/sysfs: Compile pci-sysfs.c only if CONFIG_SYSFS=y 2024-03-05 16:08:43 -06:00
of_property.c PCI: of_property: Handle interrupt parsing failures 2023-09-29 17:33:46 -05:00
of.c PCI: of: Destroy changeset when adding PCI device node fails 2023-09-29 17:33:51 -05:00
p2pdma.c PCI/P2PDMA: Fix a sleeping issue in a RCU read section 2024-02-08 15:31:43 -06:00
pci-acpi.c Merge branch 'pci/pm' 2023-10-28 13:30:59 -05:00
pci-bridge-emul.c PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-bridge-emul.h PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-driver.c Merge branch 'pci/misc' 2024-03-12 12:14:24 -05:00
pci-label.c
pci-mid.c
pci-pf-stub.c
pci-stub.c
pci-sysfs.c PCI/sysfs: Demacrofy pci_dev_resource_resize_attr(n) functions 2024-03-05 16:10:17 -06:00
pci.c pci-v6.9-changes 2024-03-14 10:58:27 -07:00
pci.h pci-v6.9-changes 2024-03-14 10:58:27 -07:00
probe.c Merge branch 'pci/sysfs' 2024-03-12 12:14:23 -05:00
proc.c
quirks.c Revert "PCI: Mark LSI FW643 to avoid bus reset" 2024-03-29 11:57:12 -05:00
remove.c PCI: Create device tree node for bridge 2023-08-22 14:56:09 -05:00
rom.c
search.c PCI: Add pci_get_base_class() helper 2023-09-28 16:49:44 -05:00
setup-bus.c PCI: Use resource names in PCI log messages 2023-12-15 17:28:42 -06:00
setup-res.c PCI: Use resource names in PCI log messages 2023-12-15 17:28:42 -06:00
slot.c PCI/sysfs: Constify struct kobj_type pci_slot_ktype 2023-02-16 12:00:25 -06:00
syscall.c PCI: Use consistent put_user() pointer types 2023-08-25 08:15:13 -05:00
vc.c PCI/VC: Use FIELD_GET() 2023-10-24 16:55:45 -05:00
vgaarb.c pci-v6.7-changes 2023-11-02 14:05:18 -10:00
vpd.c PCI/VPD: Add runtime power management to sysfs interface 2023-08-11 14:19:16 -05:00
xen-pcifront.c x86: always initialize xen-swiotlb when xen-pcifront is enabling 2023-07-31 17:54:27 +02:00