From: Wu Zongyong Date: Mon, 10 Apr 2023 12:34:11 +0000 (+0800) Subject: PCI: Mark NVIDIA T4 GPUs to avoid bus reset X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d5af729dc207;p=linux.git PCI: Mark NVIDIA T4 GPUs to avoid bus reset NVIDIA T4 GPUs do not work with SBR. This problem is found when the T4 card is direct attached to a Root Port only. Avoid bus reset by marking T4 GPUs PCI_DEV_FLAGS_NO_BUS_RESET. Fixes: 4c207e7121fa ("PCI: Mark some NVIDIA GPUs to avoid bus reset") Link: https://lore.kernel.org/r/2dcebea53a6eb9bd212ec6d8974af2e5e0333ef6.1681129861.git.wuzongyong@linux.alibaba.com Signed-off-by: Wu Zongyong Signed-off-by: Bjorn Helgaas --- diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 321156ca273d5..dc96a126aad4e 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3724,7 +3724,7 @@ 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) + if ((dev->device & 0xffc0) == 0x2340 || dev->device == 0x1eb8) quirk_no_bus_reset(dev); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,