ethtool: add speed/duplex validation functions
Add functions which check if the speed/duplex are defined.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 57fa390..b2e1801 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1319,11 +1319,45 @@
#define SPEED_UNKNOWN -1
+static inline int ethtool_validate_speed(__u32 speed)
+{
+ switch (speed) {
+ case SPEED_10:
+ case SPEED_100:
+ case SPEED_1000:
+ case SPEED_2500:
+ case SPEED_5000:
+ case SPEED_10000:
+ case SPEED_20000:
+ case SPEED_25000:
+ case SPEED_40000:
+ case SPEED_50000:
+ case SPEED_56000:
+ case SPEED_100000:
+ case SPEED_UNKNOWN:
+ return 1;
+ }
+
+ return 0;
+}
+
/* Duplex, half or full. */
#define DUPLEX_HALF 0x00
#define DUPLEX_FULL 0x01
#define DUPLEX_UNKNOWN 0xff
+static inline int ethtool_validate_duplex(__u8 duplex)
+{
+ switch (duplex) {
+ case DUPLEX_HALF:
+ case DUPLEX_FULL:
+ case DUPLEX_UNKNOWN:
+ return 1;
+ }
+
+ return 0;
+}
+
/* Which connector port. */
#define PORT_TP 0x00
#define PORT_AUI 0x01