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Thu, 7 Aug 2025 05:56:03 +0000 Date: Thu, 7 Aug 2025 07:56:00 +0200 From: Alexander Wilhelm To: Vladimir Oltean Cc: "Russell King (Oracle)" , Andrew Lunn , Heiner Kallweit , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Aquantia PHY in OCSGMII mode? 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X-MS-Exchange-CrossPremises-SCL: 1 X-MS-Exchange-CrossPremises-Processed-By-Journaling: Journal Agent X-OrganizationHeadersPreserved: DU0P192MB2073.EURP192.PROD.OUTLOOK.COM X-Authority-Analysis: v=2.4 cv=JeO8rVKV c=1 sm=1 tr=0 ts=68943ff6 cx=c_pps a=4fMlm5sWFUR6aQuiTuskwA==:117 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=wKuvFiaSGQ0qltdbU6+NXLB8nM8=:19 a=Ol13hO9ccFRV9qXi2t6ftBPywas=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=8gLI3H-aZtYA:10 a=FmlchqDzpnl39RjJ2bYA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: D3EkUuxSzBaSiY2CWEAm9mkg1xMbZr8Z X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODA3MDA0MyBTYWx0ZWRfXxGiEiA49WN0/ UgiJyjSYSUfoKPxVY+kWTdpH0D2mhpCREdHJysaQIOhbCK3XXa/jf/nDApQIMjONcj0ni6goNAO VIEfrvqQZ7jMqYuQKVe6F9z54ArT/jvSS9okiqLCM4/lYz8I6h8h89uRky1C8VWFRecd/tFzxlh 6InbXEGp++ut0Aotdmbk6Gjoqm3CqxscfrfImTHHsu2NT219qQ8tfCaRcaxTrrDcOWO/ieGMkWA liYAwvdwh4u7oYvurTzRVhYWNGPYttlf9XKr9Gg+ChFis1NgPGAJt2RsjHDd5xbKSTlutcKEU09 YVjGMhyYxWxO2+6bAt7ZZzKeoR8poK1LBolh6AQFAtfX5/moOoAGmA+891OaYo= X-Proofpoint-GUID: D3EkUuxSzBaSiY2CWEAm9mkg1xMbZr8Z Am Wed, Aug 06, 2025 at 05:58:56PM +0300 schrieb Vladimir Oltean: > On Tue, Aug 05, 2025 at 02:44:15PM +0200, Alexander Wilhelm wrote: > > Patch is applied. Here are the registers log: > > > > user@host:~# logread | grep AQR115 > > Aquantia AQR115 0x0000000ffe4fd000:07: Speed 10 SerDes mode 4 autoneg 0 training 0 reset on transition 0 silence 0 rate adapt 2 macsec 0 > > Aquantia AQR115 0x0000000ffe4fd000:07: Speed 100 SerDes mode 4 autoneg 0 training 1 reset on transition 0 silence 1 rate adapt 2 macsec 0 > > Aquantia AQR115 0x0000000ffe4fd000:07: Speed 1000 SerDes mode 4 autoneg 0 training 1 reset on transition 0 silence 1 rate adapt 2 macsec 0 > > Aquantia AQR115 0x0000000ffe4fd000:07: Speed 2500 SerDes mode 4 autoneg 1 training 1 reset on transition 0 silence 1 rate adapt 0 macsec 0 > > Aquantia AQR115 0x0000000ffe4fd000:07: Speed 5000 SerDes mode 0 autoneg 0 training 0 reset on transition 0 silence 0 rate adapt 2 macsec 0 > > Aquantia AQR115 0x0000000ffe4fd000:07: Speed 10000 SerDes mode 0 autoneg 0 training 0 reset on transition 0 silence 0 rate adapt 0 macsec 0 > > fsl_dpaa_mac ffe4e4000.ethernet eth0: PHY [0x0000000ffe4fd000:07] driver [Aquantia AQR115] (irq=POLL) > > > > While 100M transfer, I see the MAC TX frame increasing and SGMII TX good frames > > increasing. But the receiving frames are counted as SGMII RX bad frames and MAC > > RX frames counter does not increase. The TX/RX pause frames always stay at 0, > > independently whether ping is working with 1G/2.5G or not with 100M. Do you have > > any idea here? > > > > user@host:~# ethtool -S eth0 --groups eth-mac eth-phy eth-ctrl rmon | grep -v ': 0' && ethtool --phy-statistics eth0 | grep -v ': 0' && ethtool -I --show-pause eth0 > > Standard stats for eth0: > > eth-mac-FramesTransmittedOK: 529 > > eth-mac-FramesReceivedOK: 67 > > eth-mac-OctetsTransmittedOK: 79287 > > eth-mac-OctetsReceivedOK: 9787 > > eth-mac-MulticastFramesXmittedOK: 43 > > eth-mac-BroadcastFramesXmittedOK: 451 > > eth-mac-MulticastFramesReceivedOK: 32 > > eth-mac-BroadcastFramesReceivedOK: 1 > > rx-rmon-etherStatsPkts64to64Octets: 3 > > rx-rmon-etherStatsPkts65to127Octets: 42 > > rx-rmon-etherStatsPkts128to255Octets: 18 > > rx-rmon-etherStatsPkts256to511Octets: 4 > > tx-rmon-etherStatsPkts64to64Octets: 5 > > tx-rmon-etherStatsPkts65to127Octets: 385 > > tx-rmon-etherStatsPkts128to255Octets: 26 > > tx-rmon-etherStatsPkts256to511Octets: 113 > > PHY statistics: > > sgmii_rx_good_frames: 21149 > > sgmii_rx_bad_frames: 176 > > sgmii_rx_false_carrier_events: 1 > > sgmii_tx_good_frames: 21041 > > sgmii_tx_line_collisions: 1 > > Pause parameters for eth0: > > Autonegotiate: on > > RX: off > > TX: off > > RX negotiated: on > > TX negotiated: on > > Statistics: > > tx_pause_frames: 0 > > rx_pause_frames: 0 > > Sorry, I am not fluent enough with the Aquantia PHYs to be further > helpful here. > > I have made a procedural mistake by suggesting you to print select > fields of the Global System Configuration registers instead of the raw > register values. I am unable to say with the required certainty whether > the configuration for 100M and 1G is identical or not. The printed > fields are the same, however there could still be differences in the > unprinted bits (looking at bit 12 'Low Delay Jitter'). That's something > you should explore further. > > About MAC RX counters not increasing at all. The mEMAC has a catch-all > RERR counter which increments for each frame received with a wider > variety of errors (except for undersized/fragment frames): > - FIFO overflow error > - CRC error > - Payload length error > - Jabber and oversized error > - Alignment error (if supported) > - Reception of PHY/PCS error indication > The structured ethtool statistics API doesn't seem to have a counter for > received frame errors in general, only for specific errors. So I didn't > export it in the patch I sent. It's possible that this counter is > incrementing (but the more specific RFCS/RALN/... counters apparently not). > > In any case, the T1023 host configuration is literally unchanged from > 1G to 100M, so I am suspecting a misconfiguration in the Aquantia > provisioning somewhere. Maybe an FAE or AE from Marvell can help you > further with this issue. > > If you do contact them, please also request them to fix the discrepancy > where the Global System Configuration register for speed 2500 has > "autoneg 1", but all the other speeds have "autoneg 0" for the same > SerDes mode 4. It is precisely this concern that I was expressing to > Russell that makes it difficult to implement .inband_caps() based on > reading PHY registers. Hi Vladimir, Now that I have 1G/2.5G working, I’ll be able to run some additional tests with the device. I’ll revisit the 100M topic later and analyze it more thoroughly. I suspect that some register settings in U-Boot might be causing issues when the PHY is initialized again in the kernel. I truly appreciate your detailed support, it has been incredibly helpful in moving things forward. Best regards Alexander Wilhelm