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-rw-r--r--include/linux/pci_regs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index c321316f1bc..064b1dc71c2 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -292,6 +292,12 @@
#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
#define PCI_MSI_MASK_BIT 16 /* Mask bits register */
+/* MSI-X registers (these are at offset PCI_MSI_FLAGS) */
+#define PCI_MSIX_FLAGS_QSIZE 0x7FF
+#define PCI_MSIX_FLAGS_ENABLE (1 << 15)
+#define PCI_MSIX_FLAGS_BIRMASK (7 << 0)
+#define PCI_MSIX_FLAGS_BITMASK (1 << 0)
+
/* CompactPCI Hotswap Register */
#define PCI_CHSWP_CSR 2 /* Control and Status Register */