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Subject[PATCH net-next v2 0/2] Enable 2.5Gbps speed for stmmac
Date
This patchset enables 2.5Gbps speed mode for stmmac.
Link speed mode is detected and configured at serdes power up sequence.
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.

Changes:
v1 -> v2
patch 1/2
-Remove MAC supported link speed masking

patch 2/2
-Add supported link speed masking in the PCS

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 duplex full speed 10
[ 310.132264] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Down
[ 312.438102] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Up - 10Mbps/Full - flow control off
[ 312.447652] 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 60706 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 9.17 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 9.34 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=0.557 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.528 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.535 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.525 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.527 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.555 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.539 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.588 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.570 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.540 ms

--- 192.168.1.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9194ms
rtt min/avg/max/mdev = 0.525/0.546/0.588/0.019 ms
host@EHL$

100Mbps
host@EHL$ ethtool -s enp0s30f4 duplex full speed 100
[ 204.178572] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Down
[ 207.990094] intel-eth-pci 0000:00:1e.4 enp0s30f4: Link is Up - 100Mbps/Full - flow control off
[ 207.999744] 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 60702 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 11.6 MBytes 97.0 Mbits/sec 1 102 KBytes
[ 5] 1.00-2.00 sec 10.9 MBytes 91.7 Mbits/sec 0 102 KBytes
[ 5] 2.00-3.00 sec 10.8 MBytes 90.5 Mbits/sec 0 102 KBytes
[ 5] 3.00-4.00 sec 11.0 MBytes 92.6 Mbits/sec 0 102 KBytes
[ 5] 4.00-5.00 sec 10.8 MBytes 90.6 Mbits/sec 0 102 KBytes
[ 5] 5.00-6.00 sec 11.0 MBytes 92.6 Mbits/sec 0 102 KBytes
[ 5] 6.00-7.00 sec 11.0 MBytes 92.6 Mbits/sec 0 102 KBytes
[ 5] 7.00-8.00 sec 10.8 MBytes 90.6 Mbits/sec 0 102 KBytes
[ 5] 8.00-9.00 sec 11.0 MBytes 92.6 Mbits/sec 0 102 KBytes
[ 5] 9.00-10.00 sec 11.0 MBytes 92.6 Mbits/sec 0 102 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 110 MBytes 92.3 Mbits/sec 1 sender
[ 5] 0.00-10.00 sec 109 MBytes 91.8 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=0.331 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.322 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.315 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.315 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.295 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.300 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.307 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.294 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.292 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.297 ms

--- 192.168.1.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9215ms
rtt min/avg/max/mdev = 0.292/0.306/0.331/0.012 ms

1G 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 60698 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 114 MBytes 954 Mbits/sec 0 533 KBytes
[ 5] 1.00-2.00 sec 112 MBytes 942 Mbits/sec 0 591 KBytes
[ 5] 2.00-3.00 sec 113 MBytes 945 Mbits/sec 0 621 KBytes
[ 5] 3.00-4.00 sec 112 MBytes 941 Mbits/sec 0 621 KBytes
[ 5] 4.00-5.00 sec 112 MBytes 942 Mbits/sec 0 764 KBytes
[ 5] 5.00-6.00 sec 112 MBytes 944 Mbits/sec 0 764 KBytes
[ 5] 6.00-7.00 sec 111 MBytes 933 Mbits/sec 0 803 KBytes
[ 5] 7.00-8.00 sec 112 MBytes 944 Mbits/sec 0 803 KBytes
[ 5] 8.00-9.00 sec 112 MBytes 944 Mbits/sec 0 843 KBytes
[ 5] 9.00-10.00 sec 112 MBytes 944 Mbits/sec 0 843 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.10 GBytes 943 Mbits/sec 0 sender
[ 5] 0.00-10.00 sec 1.09 GBytes 940 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=0.299 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.277 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.277 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.286 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.330 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.276 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.296 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.272 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.276 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.274 ms

--- 192.168.1.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9196ms
rtt min/avg/max/mdev = 0.272/0.286/0.330/0.017 ms

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 55160 connected to 192.168.1.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 175 MBytes 1.47 Gbits/sec 17 683 KBytes
[ 5] 1.00-2.00 sec 202 MBytes 1.70 Gbits/sec 0 707 KBytes
[ 5] 2.00-3.00 sec 204 MBytes 1.71 Gbits/sec 0 751 KBytes
[ 5] 3.00-4.00 sec 204 MBytes 1.71 Gbits/sec 0 773 KBytes
[ 5] 4.00-5.00 sec 202 MBytes 1.70 Gbits/sec 0 773 KBytes
[ 5] 5.00-6.00 sec 204 MBytes 1.71 Gbits/sec 0 798 KBytes
[ 5] 6.00-7.00 sec 204 MBytes 1.71 Gbits/sec 0 807 KBytes
[ 5] 7.00-8.00 sec 204 MBytes 1.71 Gbits/sec 0 807 KBytes
[ 5] 8.00-9.00 sec 204 MBytes 1.71 Gbits/sec 0 807 KBytes
[ 5] 9.00-10.00 sec 202 MBytes 1.70 Gbits/sec 0 807 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.96 GBytes 1.68 Gbits/sec 17 sender
[ 5] 0.00-10.00 sec 1.96 GBytes 1.68 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=0.671 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.300 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.300 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.291 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.296 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.301 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.328 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.306 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.299 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.293 ms

--- 192.168.1.1 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9251ms
rtt min/avg/max/mdev = 0.291/0.338/0.671/0.111 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 | 20 ++++++++-
drivers/net/pcs/pcs-xpcs.c | 39 ++++++++++++++++
include/linux/pcs/pcs-xpcs.h | 1 +
include/linux/stmmac.h | 2 +
7 files changed, 117 insertions(+), 3 deletions(-)

--
2.17.1

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