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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>
hifive-unleashed-5.1
Brandon Philips 2008-07-15 02:18:41 -07:00 committed by Jeff Garzik
parent 4f63135eb2
commit b11f8d8cc3
1 changed files with 16 additions and 1 deletions
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17
include/linux/ethtool.h
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@ -27,9 +27,24 @@ struct ethtool_cmd {
__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 {