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Date: Sat, 22 Oct 2022 12:52:00 +0200 From: Frank Wunderlich <frank-w@...lic-files.de> To: "Russell King (Oracle)" <linux@...linux.org.uk> Cc: Frank Wunderlich <linux@...web.de>, linux-mediatek@...ts.infradead.org, Alexander Couzens <lynxis@...0.eu>, Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>, Sean Wang <sean.wang@...iatek.com>, Mark Lee <Mark-MC.Lee@...iatek.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Matthias Brugger <matthias.bgg@...il.com>, netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Aw: Re: Re: Re: [PATCH v2] net: mtk_sgmii: implement mtk_pcs_ops > Gesendet: Samstag, 22. Oktober 2022 um 11:11 Uhr > Von: "Russell King (Oracle)" <linux@...linux.org.uk> > Please try this untested patch, which should setup the PCS to perform > autonegotiation when using in-band mode for 1000base-X, write the > correct to offset 8, and set the link timer correctly. hi, this patch breaks connectivity at least on the sfp-port (eth1). root@...-r3:~# ip link set eth1 up [ 65.457521] mtk_soc_eth 15100000.ethernet eth1: configuring for inband/1000base-x link mode root@...-r3:~# [ 65.522936] offset:0 0x2c1140 [ 65.522950] offset:4 0x4d544950 [ 65.525914] offset:8 0x40e041a0 [ 65.529064] mtk_soc_eth 15100000.ethernet eth1: Link is Up - 1Gbps/Unknown - flow control off [ 65.540733] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready root@...-r3:~# ip a a 192.168.0.19/24 dev eth1 root@...-r3:~# ip r a default via 192.168.0.10 root@...-r3:~# iperf3 -c 192.168.0.21 #ping does not work too iperf3: error - unable to send control message: Bad file descriptor root@...-r3:~# ethtool eth1 [ 177.346183] offset:0 0x2c1140 [ 177.346202] offset:4 0x4d544950 Settings for eth[ 177.349168] offset:8 0x40e041a0 1: Supported p[ 177.352477] offset:0 0x2c1140 [ 177.356952] offset:4 0x4d544950 Supported link modes: 1000baseX/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 1000baseX/Full Advertised pause frame use: Symmetric Receive-only Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: 1000Mb/s Duplex: Unknown! (255) Auto-negotiation: on Port: FIBRE PHYAD: 0 Transceiver: internal Current message level: 0x000000ff (255) drv probe link timer ifdown ifup rx_err tx_err Link detected: yes root@...-r3:~# from sgmii_init [ 1.091796] dev: 1 offset:0 0x81140 [ 1.094977] dev: 1 offset:4 0x4d544950 [ 1.098456] dev: 1 offset:8 0x1 ... pcs_get_state [ 65.522936] offset:0 0x2c1140 [ 65.522950] offset:4 0x4d544950 [ 65.525914] offset:8 0x40e041a0 [ 177.346183] offset:0 0x2c1140 [ 177.346202] offset:4 0x4d544950 [ 177.349168] offset:8 0x40e041a0 [ 177.352477] offset:0 0x2c1140 [ 177.356952] offset:4 0x4d544950 regards Frank
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