ethtool: Expand ethtool_cmd.speed to 32 bits
Introduce the speed_hi field to ethtool_cmd, using the reserved space,
to expand the speed field to 2^32 Megabits/second.
Making this field expansion now gives us plenty of time to fix up the
user-space pieces that use SIOCETHTOOL before hardware faster than 64
Gb/s is available.
Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 8bb5e87..b4b038b 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -27,9 +27,24 @@
__u8 autoneg; /* Enable or disable autonegotiation */
__u32 maxtxpkt; /* Tx pkts before generating tx int */
__u32 maxrxpkt; /* Rx pkts before generating rx int */
- __u32 reserved[4];
+ __u16 speed_hi;
+ __u16 reserved2;
+ __u32 reserved[3];
};
+static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep,
+ __u32 speed)
+{
+
+ ep->speed = (__u16)speed;
+ ep->speed_hi = (__u16)(speed >> 16);
+}
+
+static inline __u32 ethtool_cmd_speed(struct ethtool_cmd *ep)
+{
+ return (ep->speed_hi << 16) | ep->speed;
+}
+
#define ETHTOOL_BUSINFO_LEN 32
/* these strings are set to whatever the driver author decides... */
struct ethtool_drvinfo {