diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2020-07-05 19:16:22 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-05 15:25:58 -0700 |
| commit | b1c7b87443c2c12c4fe095114736b8ad6f963f67 (patch) | |
| tree | 0965e9bf6a09a7cdb17ab7f576a9d8c074b8eeba /include/linux/fsl | |
| parent | net: dsa: felix: clarify the intention of writes to MII_BMCR (diff) | |
| download | wireguard-linux-b1c7b87443c2c12c4fe095114736b8ad6f963f67.tar.xz wireguard-linux-b1c7b87443c2c12c4fe095114736b8ad6f963f67.zip | |
net: dsa: felix: support half-duplex link modes
Ping tested:
[ 11.808455] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control rx/tx
[ 11.816497] IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready
[root@LS1028ARDB ~] # ethtool -s swp0 advertise 0x4
[ 18.844591] mscc_felix 0000:00:00.5 swp0: Link is Down
[ 22.048337] mscc_felix 0000:00:00.5 swp0: Link is Up - 100Mbps/Half - flow control off
[root@LS1028ARDB ~] # ip addr add 192.168.1.1/24 dev swp0
[root@LS1028ARDB ~] # ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2): 56 data bytes
(...)
^C--- 192.168.1.2 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.383/0.611/1.051 ms
[root@LS1028ARDB ~] # ethtool -s swp0 advertise 0x10
[ 355.637747] mscc_felix 0000:00:00.5 swp0: Link is Down
[ 358.788034] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Half - flow control off
[root@LS1028ARDB ~] # ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2): 56 data bytes
(...)
^C
--- 192.168.1.2 ping statistics ---
16 packets transmitted, 16 packets received, 0% packet loss
round-trip min/avg/max = 0.301/0.384/1.138 ms
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/fsl')
| -rw-r--r-- | include/linux/fsl/enetc_mdio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/fsl/enetc_mdio.h b/include/linux/fsl/enetc_mdio.h index 4875dd38af7e..2d9203314865 100644 --- a/include/linux/fsl/enetc_mdio.h +++ b/include/linux/fsl/enetc_mdio.h @@ -15,6 +15,7 @@ #define ENETC_PCS_IF_MODE_SGMII_EN BIT(0) #define ENETC_PCS_IF_MODE_USE_SGMII_AN BIT(1) #define ENETC_PCS_IF_MODE_SGMII_SPEED(x) (((x) << 2) & GENMASK(3, 2)) +#define ENETC_PCS_IF_MODE_DUPLEX_HALF BIT(3) /* Not a mistake, the SerDes PLL needs to be set at 3.125 GHz by Reset * Configuration Word (RCW, outside Linux control) for 2.5G SGMII mode. The PCS |