[PATCH net-next v3 0/2] Enable 2.5Gbps speed for stmmac and xPCS

Michael Sit Wei Hong
2021-03-25T08:44:15Z

This patchset enables 2.5Gbps speed mode for stmmac and xPCS.
For 2.5G, we do not use SGMII in-band AN, we check the link speed mode
in the serdes and disable the in-band AN accordingly.

iperf3 and ping for 2.5Gbps and regression test on 10M/100M/1000Mbps
is done to prevent regresson issues.

10Mbps
host@EHL$ ethtool -s enp0s30f4 speed 10 duplex full autoneg on
[ 76.022186] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Down
[ 79.420699] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Up - 10Mbps/Full - flow control off
[ 79.430270] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s30f4: link becomes ready
host@EHL$ iperf3 -c 192.168.1.1 Connecting to host 192.168.1.1, port 5201 [ 5] local 192.168.1.2 port 33462 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 1.26 MBytes 10.6 Mbits/sec 0 29.7 KBytes
[ 5] 1.00-2.00 sec 1.09 MBytes 9.18 Mbits/sec 0 29.7 KBytes
[ 5] 2.00-3.00 sec 1.09 MBytes 9.17 Mbits/sec 0 29.7 KBytes
[ 5] 3.00-4.00 sec 1.15 MBytes 9.68 Mbits/sec 0 29.7 KBytes
[ 5] 4.00-5.00 sec 1.09 MBytes 9.17 Mbits/sec 0 29.7 KBytes
[ 5] 5.00-6.00 sec 1.09 MBytes 9.17 Mbits/sec 0 29.7 KBytes
[ 5] 6.00-7.00 sec 1.15 MBytes 9.68 Mbits/sec 0 29.7 KBytes
[ 5] 7.00-8.00 sec 1.09 MBytes 9.17 Mbits/sec 0 29.7 KBytes
[ 5] 8.00-9.00 sec 1.09 MBytes 9.17 Mbits/sec 0 29.7 KBytes
[ 5] 9.00-10.00 sec 1.15 MBytes 9.68 Mbits/sec 0 29.7 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 11.3 MBytes 9.47 Mbits/sec 0 sender
[ 5] 0.00-10.01 sec 11.1 MBytes 9.33 Mbits/sec receiver

iperf Done.
host@EHL$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.634 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.599 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.594 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.650 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.591 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.586 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.582 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.610 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.585 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.577 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=0.612 ms
--- 192.168.1.1 ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 10224ms rtt min/avg/max/mdev = 0.577/0.601/0.650/0.021 ms

100Mbps
host@EHL$ ethtool -s enp0s30f4 speed 100 duplex full autoneg on
[ 269.425955] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Down
[ 271.932821] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Up - 100Mbps/Full - flow control off [ 271.942493] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s30f4: link becomes ready
host@EHL$ iperf3 -c 192.168.1.1 Connecting to host 192.168.1.1, port 5201 [ 5] local 192.168.1.2 port 33466 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 11.6 MBytes 97.5 Mbits/sec 0 100 KBytes
[ 5] 1.00-2.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
[ 5] 2.00-3.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
[ 5] 3.00-4.00 sec 11.3 MBytes 94.5 Mbits/sec 0 100 KBytes
[ 5] 4.00-5.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
[ 5] 5.00-6.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
[ 5] 6.00-7.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
[ 5] 7.00-8.00 sec 11.3 MBytes 94.5 Mbits/sec 0 100 KBytes
[ 5] 8.00-9.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
[ 5] 9.00-10.00 sec 11.0 MBytes 92.6 Mbits/sec 0 100 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 111 MBytes 93.4 Mbits/sec 0 sender
[ 5] 0.00-10.01 sec 111 MBytes 93.0 Mbits/sec receiver

iperf Done.
host@EHL$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.393 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.354 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.414 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.377 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.426 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.379 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.348 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.354 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.351 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.351 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=0.429 ms
--- 192.168.1.1 ping statistics ---
11 packets transmitted, 11 received, 0% packet loss, time 10254ms rtt min/avg/max/mdev = 0.348/0.379/0.429/0.030 ms

1G speed
host@EHL$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=1.15 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.601 ms
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 0.601/0.874/1.147/0.273 ms host@EHL$ ^C host@EHL$ ping 192.168.1.1^C host@EHL$ ^C host@EHL$ iperf3 -c 192.168.1.1 Connecting to host 192.168.1.1, port 5201 [ 5] local 192.168.1.2 port 47884 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 114 MBytes 957 Mbits/sec 2 571 KBytes
[ 5] 1.00-2.00 sec 111 MBytes 933 Mbits/sec 1 525 KBytes
[ 5] 2.00-3.00 sec 111 MBytes 933 Mbits/sec 0 624 KBytes
[ 5] 3.00-4.00 sec 111 MBytes 933 Mbits/sec 0 718 KBytes
[ 5] 4.00-5.00 sec 111 MBytes 933 Mbits/sec 0 799 KBytes
[ 5] 5.00-6.00 sec 111 MBytes 933 Mbits/sec 2 450 KBytes
[ 5] 6.00-7.00 sec 111 MBytes 933 Mbits/sec 0 570 KBytes
[ 5] 7.00-8.00 sec 111 MBytes 933 Mbits/sec 0 673 KBytes
[ 5] 8.00-9.00 sec 111 MBytes 933 Mbits/sec 2 551 KBytes
[ 5] 9.00-10.00 sec 112 MBytes 944 Mbits/sec 1 471 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.09 GBytes 937 Mbits/sec 8 sender
[ 5] 0.00-10.00 sec 1.09 GBytes 933 Mbits/sec receiver

iperf Done.

2.5G speed
host@EHL$ iperf3 -c 192.168.1.1
Connecting to host 192.168.1.1, port 5201
[ 5] local 192.168.1.2 port 58650 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 192 MBytes 1.61 Gbits/sec 0 710 KBytes
[ 5] 1.00-2.00 sec 190 MBytes 1.59 Gbits/sec 0 710 KBytes
[ 5] 2.00-3.00 sec 190 MBytes 1.59 Gbits/sec 0 710 KBytes
[ 5] 3.00-4.00 sec 189 MBytes 1.58 Gbits/sec 0 795 KBytes
[ 5] 4.00-5.00 sec 190 MBytes 1.59 Gbits/sec 0 795 KBytes
[ 5] 5.00-6.00 sec 189 MBytes 1.58 Gbits/sec 0 795 KBytes
[ 5] 6.00-7.00 sec 190 MBytes 1.59 Gbits/sec 0 840 KBytes
[ 5] 7.00-8.00 sec 190 MBytes 1.59 Gbits/sec 0 840 KBytes
[ 5] 8.00-9.00 sec 189 MBytes 1.58 Gbits/sec 0 840 KBytes
[ 5] 9.00-10.00 sec 190 MBytes 1.59 Gbits/sec 0 840 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.85 GBytes 1.59 Gbits/sec 0 sender
[ 5] 0.00-10.01 sec 1.85 GBytes 1.59 Gbits/sec receiver

iperf Done.
host@EHL$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.458 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.395 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.374 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.343 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.346 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.347 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.347 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.363 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.347 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.340 ms

--- 192.168.1.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9218ms
rtt min/avg/max/mdev = 0.340/0.366/0.458/0.034 ms

Voon Weifeng (2):
net: stmmac: enable 2.5Gbps link speed
net: pcs: configure xpcs 2.5G speed mode

.../net/ethernet/stmicro/stmmac/dwmac-intel.c | 44 ++++++++++++++++++-
.../net/ethernet/stmicro/stmmac/dwmac-intel.h | 13 ++++++
.../net/ethernet/stmicro/stmmac/dwmac4_core.c | 1 +
.../net/ethernet/stmicro/stmmac/stmmac_main.c | 35 ++++++++++++++-
drivers/net/pcs/pcs-xpcs.c | 23 ++++++++++
drivers/net/phy/phylink.c | 2 +
include/linux/pcs/pcs-xpcs.h | 1 +
include/linux/stmmac.h | 2 +
8 files changed, 118 insertions(+), 3 deletions(-)

--
2.17.1