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
@@ -146,6 +146,8 @@
 #define	PCI_EXP_TYPE_DOWNSTREAM PCIEM_TYPE_DOWNSTREAM_PORT	/* Downstream Port */
 #define	PCI_EXP_FLAGS_SLOT	PCIEM_FLAGS_SLOT		/* Slot implemented */
 #define	PCI_EXP_TYPE_RC_EC	PCIEM_TYPE_ROOT_EC		/* Root Complex Event Collector */
+#define	PCI_EXP_LNKSTA_CLS	PCIEM_LINK_STA_SPEED
+#define	PCI_EXP_LNKSTA_CLS_8_0GB	0x0003	/* Current Link Speed 8.0GT/s */
 #define	PCI_EXP_LNKCAP_SLS_2_5GB 0x01	/* Supported Link Speed 2.5GT/s */
 #define	PCI_EXP_LNKCAP_SLS_5_0GB 0x02	/* Supported Link Speed 5.0GT/s */
 #define	PCI_EXP_LNKCAP_SLS_8_0GB 0x03	/* Supported Link Speed 8.0GT/s */