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linux/drivers/pci
History
Bjorn Helgaas 1654635bed Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset" 
commit 5260bd6d36 upstream.

This reverts commit d5af729dc2.

d5af729dc2 ("PCI: Mark NVIDIA T4 GPUs to avoid bus reset") avoided
Secondary Bus Reset on the T4 because the reset seemed to not work when the
T4 was directly attached to a Root Port.

But NVIDIA thinks the issue is probably related to some issue with the Root
Port, not with the T4.  The T4 provides neither PM nor FLR reset, so
masking bus reset compromises this device for assignment scenarios.

Revert d5af729dc2 as requested by Wu Zongyong.  This will leave SBR
broken in the specific configuration Wu tested, as it was in v6.5, so Wu
will debug that further.

Link: https://lore.kernel.org/r/ZPqMCDWvITlOLHgJ@wuzongyong-alibaba
Link: https://lore.kernel.org/r/20230908201104.GA305023@bhelgaas
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-09-13 09:43:02 +02:00
..
controller PCI: hv: Fix a crash in hv_pci_restore_msi_msg() during hibernation 2023-09-13 09:43:02 +02:00
endpoint PCI: epf-test: Fix DMA transfer completion detection 2023-07-23 13:49:36 +02:00
hotplug PCI: pciehp: Use RMW accessors for changing LNKCTL 2023-09-13 09:42:46 +02:00
msi PCI/MSI: Correct 'can_mask' test in msi_add_msi_desc() 2022-08-26 10:47:54 -05:00
pcie PCI/ASPM: Use RMW accessors for changing LNKCTL 2023-09-13 09:42:46 +02:00
switch PCI: switchtec: Return -EFAULT for copy_to_user() errors 2023-03-10 09:33:31 +01:00
access.c PCI: Add locking to RMW PCI Express Capability Register accessors 2023-09-13 09:42:46 +02:00
ats.c PCI: Allow PASID on fake PCIe devices without TLP prefixes 2021-08-26 14:21:42 -05:00
bus.c PCI: s390: Fix use-after-free of PCI resources with per-function hotplug 2023-03-22 13:33:45 +01:00
doe.c PCI/DOE: Fix destroy_work_on_stack() race 2023-09-13 09:42:45 +02:00
ecam.c PCI: Dynamically map ECAM regions 2021-06-16 17:20:40 -05:00
host-bridge.c PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus 2021-09-02 17:59:58 +02:00
iov.c PCI/IOV: Enlarge virtfn sysfs name buffer 2023-03-10 09:33:31 +01:00
irq.c PCI: Check for alloc failure in pci_request_irq() 2022-12-31 13:32:33 +01:00
Kconfig cxl for 6.0 2022-08-10 11:07:26 -07:00
Makefile PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
mmap.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
of.c IOMMU Updates for Linux v5.19 2022-05-31 09:56:54 -07:00
p2pdma.c PCI/P2PDMA: Use for_each_pci_dev() helper 2022-09-19 13:44:38 -05:00
pci-acpi.c PCI/ACPI: Call _REG when transitioning D-states 2023-07-05 18:27:37 +01:00
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 PCI: Unify delay handling for reset and resume 2023-03-10 09:34:30 +01:00
pci-label.c PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions 2021-06-03 22:14:47 -05:00
pci-mid.c PCI: PM: Do not use pci_platform_pm_ops for Intel MID PM 2021-09-27 17:13:21 +02:00
pci-pf-stub.c PCI/IOV: Simplify pci-pf-stub with module_pci_driver() 2020-09-17 12:40:20 -05:00
pci-stub.c PCI: pci_stub: Set driver_managed_dma 2022-04-28 15:32:20 +02:00
pci-sysfs.c PCI: Allow drivers to request exclusive config regions 2023-09-13 09:42:46 +02:00
pci.c PCI/PM: Only read PCI_PM_CTRL register when available 2023-09-13 09:43:02 +02:00
pci.h PCI/DPC: Await readiness of secondary bus after reset 2023-03-10 09:34:31 +01:00
probe.c PCI: Free released resource after coalescing 2023-09-13 09:43:01 +02:00
proc.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
quirks.c Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset" 2023-09-13 09:43:02 +02:00
remove.c PCI: Remove reset_fn field from pci_dev 2021-08-17 17:44:38 -05:00
rom.c PCI: Prefer 'unsigned int' over bare 'unsigned' 2021-10-27 13:41:22 -05:00
search.c PCI: Remove WARN_ON(in_interrupt()) 2021-02-10 16:46:29 -06:00
setup-bus.c PCI: Distribute available resources for root buses, too 2023-03-11 13:55:38 +01:00
setup-irq.c PCI: Tidy comments 2021-09-28 13:43:17 -05:00
setup-res.c PCI: Sanitise firmware BAR assignments behind a PCI-PCI bridge 2022-09-21 17:52:47 -05:00
slot.c PCI/sysfs: Use default_groups in kobj_type for slot attrs 2021-12-29 13:42:04 -06:00
syscall.c PCI: Return int from pciconfig_read() syscall 2021-08-03 16:55:48 -05:00
vc.c PCI: Fix kerneldoc warnings 2020-08-05 18:23:14 -05:00
vgaarb.c PCI/VGA: Replace full MIT license text with SPDX identifier 2022-03-09 18:31:34 -06:00
vpd.c PCI/VPD: Use pci_read_vpd_any() in pci_vpd_size() 2021-10-25 19:12:23 -05:00
xen-pcifront.c xen/pcifront: move xenstore config scanning into sub-function 2022-10-07 07:36:44 +02:00