[PATCH 4.9 035/207] PCI: Mark Atheros QCA6174 to avoid bus reset

From
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date
2021-11-24 12:14:01
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Greg Kroah-Hartman, 2021-11-24
From: Ingmar Klein <redacted>

commit e3f4bd3462f6f796594ecc0dda7144ed2d1e5a26 upstream.

When passing the Atheros QCA6174 through to a virtual machine, the VM hangs
at the point where the ath10k driver loads.

Add a quirk to avoid bus resets on this device, which avoids the hang.

[bhelgaas: commit log]
Link: https://lore.kernel.org/r/08982e05-b6e8-5a8d-24ab-da1488ee50a8@web.de (local)
Signed-off-by: Ingmar Klein <redacted>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Cc: <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/quirks.c |    1 +
 1 file changed, 1 insertion(+)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3370,6 +3370,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_A
 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);
 
 /*
  * Some TI KeyStone C667X devices do not support bus/hot reset.  The PCIESS

Thread (217 messages) 217 messages, 4 authors, last reply 2021-11-25
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