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Merge branch 'pci/virtualization'

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- Avoid FLR for MediaTek MT7925 WiFi, where FLR fails after a VM terminates
  uncleanly (Jose Ignacio Tornos Martinez)

- Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems, which
  seem not to support it correctly (Jose Ignacio Tornos Martinez)

* pci/virtualization:
  PCI: Avoid SBR for Qualcomm WCN6855/WCN7850 WiFi, SDX62/SDX65 modems
  PCI: Avoid FLR for MediaTek MT7925 WiFi
This commit is contained in:
Bjorn Helgaas 2026-06-23 17:32:03 -05:00
commit 44105c5d0a
1 changed files with 5 additions and 0 deletions
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5
drivers/pci/quirks.c
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@ -3777,6 +3777,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003e, quirk_no_bus_reset);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_QCOM, 0x1103, quirk_no_bus_reset); /* WCN6855 */
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_QCOM, 0x1107, quirk_no_bus_reset); /* WCN7850 */
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_QCOM, 0x0308, quirk_no_bus_reset); /* SDX62/SDX65 */
/*
* Root port on some Cavium CN8xxx chips do not successfully complete a bus
@ -5592,6 +5595,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap);
* Intel 82579LM Gigabit Ethernet Controller 0x1502
* Intel 82579V Gigabit Ethernet Controller 0x1503
* Mediatek MT7922 802.11ax PCI Express Wireless Network Adapter
* Mediatek MT7925 802.11be PCI Express Wireless Network Adapter
*/
static void quirk_no_flr(struct pci_dev *dev)
{
@ -5606,6 +5610,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x17f0, quirk_no_flr);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_no_flr);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_no_flr);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_MEDIATEK, 0x0616, quirk_no_flr);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_MEDIATEK, 0x7925, quirk_no_flr);
/* FLR may cause the SolidRun SNET DPU (rev 0x1) to hang */
static void quirk_no_flr_snet(struct pci_dev *dev)