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authorBjorn Helgaas <bhelgaas@google.com>2023-09-08 22:55:30 +0300
committerBjorn Helgaas <bhelgaas@google.com>2023-09-08 23:11:45 +0300
commit5260bd6d36c83c5b269c33baaaf8c78e520908b0 (patch)
tree55d69c3bcae4e0f1a54e922888a56d1c277a39e5 /drivers
parent8ec9c1d5d0a5a4744516adb483b97a238892f9d5 (diff)
downloadlinux-5260bd6d36c83c5b269c33baaaf8c78e520908b0.tar.xz
Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
This reverts commit d5af729dc2071273f14cbb94abbc60608142fd83. d5af729dc207 ("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 d5af729dc207 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/quirks.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 5de09d2eb014..eeec1d6f9023 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3726,7 +3726,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev)
*/
static void quirk_nvidia_no_bus_reset(struct pci_dev *dev)
{
- if ((dev->device & 0xffc0) == 0x2340 || dev->device == 0x1eb8)
+ if ((dev->device & 0xffc0) == 0x2340)
quirk_no_bus_reset(dev);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,