[RFC PATCH 1/1] ethtool: adding support for multiple slave port configuration
From: Mugunthan V N <hidden>
Date: 2014-07-25 12:28:55
Also in:
lkml, netdev
Subsystem:
networking [ethtool], networking [general], the rest · Maintainers:
Andrew Lunn, Jakub Kicinski, "David S. Miller", Eric Dumazet, Paolo Abeni, Linus Torvalds
Some Ethernet Swtich controllers like CPSW in AM335x, TI814x, DRA7x and AM43xx SoCs, Network Coprocessor in AM5K2E0x, Realtek Switch controllers etc has to capability of conneting multiple networks using L2 switching and has multiple phys. With the existing code, ethtool can communicate only to one phy. To enable user to communicate multiple phy connected to single Ethernet Switch controller, intoducing a optional new parameter in Ethtool interface to pass which slave to set/get the phy configuration. Signed-off-by: Mugunthan V N <redacted> --- include/uapi/linux/ethtool.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 96ade34..3011427 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h@@ -60,6 +60,9 @@ * and other link features that the link partner advertised * through autonegotiation; 0 if unknown or not applicable. * Read-only. + * @slave_port: Specify which slave port to be used to set/get + * parmeters, for example which slave port phy to be used for + * set/get phy capabilities * * The link speed in Mbps is split between @speed and @speed_hi. Use * the ethtool_cmd_speed() and ethtool_cmd_speed_set() functions to
@@ -107,7 +110,8 @@ struct ethtool_cmd { __u8 eth_tp_mdix; __u8 eth_tp_mdix_ctrl; __u32 lp_advertising; - __u32 reserved[2]; + __u32 slave_port; + __u32 reserved; }; static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep,
--
2.0.2.673.g9ab0882