[PATCH net-next v2 0/2] Enable 2.5Gbps speed for stmmac

From: Michael Sit Wei Hong
Date: Mon Apr 05 2021 - 07:35:40 EST

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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

Next message: Michael Sit Wei Hong: "[PATCH net-next v2 1/2] net: stmmac: enable 2.5Gbps link speed"
Previous message: Gustavo A. R. Silva: "Re: [PATCH][next] scsi: ufs: Fix out-of-bounds warnings in ufshcd_exec_raw_upiu_cmd"
Next in thread: Michael Sit Wei Hong: "[PATCH net-next v2 1/2] net: stmmac: enable 2.5Gbps link speed"
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