From: Marek Behún <kabel@xxxxxxxxxx> commit b12d93e9958e028856cbcb061b6e64728ca07755 upstream. The ASMedia ASM1062 SATA controller advertises Max_Payload_Size_Supported of 512, but in fact it cannot handle incoming TLPs with payload size of 512. We discovered this issue on PCIe controllers capable of MPS = 512 (Aardvark and DesignWare), where the issue presents itself as an External Abort. Bjorn Helgaas says: Probably ASM1062 reports a Malformed TLP error when it receives a data payload of 512 bytes, and Aardvark, DesignWare, etc convert this to an arm64 External Abort. [1] To avoid this problem, limit the ASM1062 Max Payload Size Supported to 256 bytes, so we set the Max Payload Size of devices that may send TLPs to the ASM1062 to 256 or less. [1] https://lore.kernel.org/linux-pci/20210601170907.GA1949035@bjorn-Precision-5520/ BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212695 Link: https://lore.kernel.org/r/20210624171418.27194-2-kabel@xxxxxxxxxx Reported-by: Rötti <espressobinboardarmbiantempmailaddress@xxxxxxxxx> Signed-off-by: Marek Behún <kabel@xxxxxxxxxx> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> Reviewed-by: Krzysztof Wilczyński <kw@xxxxxxxxx> Reviewed-by: Pali Rohár <pali@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3252,6 +3252,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SO PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SOLARFLARE, PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ASMEDIA, 0x0612, fixup_mpss_256); /* * Intel 5000 and 5100 Memory controllers have an erratum with read completion
