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authorAnanth Jasty <Ananth.Jasty@cavium.com>2016-08-24 02:27:14 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2016-08-31 18:00:38 +0300
commit21b5b8eebbae427d7d890b7dd1e43a63aca7c26c (patch)
tree7fe566fb46d9775d2a5b65d46ad72b3761619563
parent16d56963e832339fc2dff6a4afce14138fb61932 (diff)
downloadlinux-21b5b8eebbae427d7d890b7dd1e43a63aca7c26c.tar.xz
PCI: quirk fixup for cavium invalid sriov link value.
Cavium cn88xx hardware presents an incorrect SR-IOV Function Dependency Link, add a fixup quirk for the affected devices. Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: Ananth Jasty <Ananth.Jasty@cavium.com> Signed-off-by: Omer Khaliq <okhaliq@caviumnetworks.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/pci/quirks.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 37ff0158e45f..5980aae41d40 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -834,6 +834,17 @@ static void quirk_amd_ioapic(struct pci_dev *dev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic);
#endif /* CONFIG_X86_IO_APIC */
+#ifdef CONFIG_ARM64
+
+static void quirk_cavium_sriov_rnm_link(struct pci_dev *dev)
+{
+ /* Fix for improper SRIOV configuration on Cavium cn88xx RNM device */
+ if (dev->subsystem_device == 0xa118)
+ dev->sriov->link = dev->devfn;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CAVIUM, 0xa018, quirk_cavium_sriov_rnm_link);
+#endif
+
/*
* Some settings of MMRBC can lead to data corruption so block changes.
* See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide