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authorVladimir Oltean <vladimir.oltean@nxp.com>2020-07-05 19:16:22 +0300
committerDavid S. Miller <davem@davemloft.net>2020-07-05 15:25:58 -0700
commitb1c7b87443c2c12c4fe095114736b8ad6f963f67 (patch)
tree0965e9bf6a09a7cdb17ab7f576a9d8c074b8eeba /include/linux/fsl
parent3f2628d62dec9505d5f19044e5f0401989a6b796 (diff)
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.h1
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