diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h
--- a/sys/compat/linuxkpi/common/include/linux/pci.h
+++ b/sys/compat/linuxkpi/common/include/linux/pci.h
@@ -130,6 +130,14 @@
 #define	PCI_EXP_LNKCAP2_SLS_5_0GB 0x04	/* Supported Link Speed 5.0GT/s */
 #define	PCI_EXP_LNKCAP2_SLS_8_0GB 0x08	/* Supported Link Speed 8.0GT/s */
 #define	PCI_EXP_LNKCAP2_SLS_16_0GB 0x10	/* Supported Link Speed 16.0GT/s */
+#define	PCI_EXP_LNKCTL2_TLS		0x000f
+#define	PCI_EXP_LNKCTL2_TLS_2_5GT	0x0001	/* Supported Speed 2.5GT/s */
+#define	PCI_EXP_LNKCTL2_TLS_5_0GT	0x0002	/* Supported Speed 5GT/s */
+#define	PCI_EXP_LNKCTL2_TLS_8_0GT	0x0003	/* Supported Speed 8GT/s */
+#define	PCI_EXP_LNKCTL2_TLS_16_0GT	0x0004	/* Supported Speed 16GT/s */
+#define	PCI_EXP_LNKCTL2_TLS_32_0GT	0x0005	/* Supported Speed 32GT/s */
+#define	PCI_EXP_LNKCTL2_ENTER_COMP	0x0010	/* Enter Compliance */
+#define	PCI_EXP_LNKCTL2_TX_MARGIN	0x0380	/* Transmit Margin */
 
 #define PCI_EXP_LNKCTL_HAWD	PCIEM_LINK_CTL_HAWD
 #define PCI_EXP_LNKCAP_CLKPM	0x00040000