topic Is LS1046 SGMII @ QSGMII not support half mode? in Layerscape

Is LS1046 SGMII @ QSGMII not support half mode?

Hmc510 — Mon, 05 Jun 2023 05:51:33 GMT

env:PC ---- (SGMII)LS1046

when I set PC autoneg off,I fond that LS1046 PHY(SGMII) can not link.

PHY(RGMII) is good.

I see that in code: Is LS1046 SGMII @ QSGMII not support half mode?

Re: Is LS1046 SGMII @ QSGMII not support half mode?

mrudangshelat-13 — Mon, 05 Jun 2023 12:25:14 GMT

Hi @Hmc510,

The SGMII protocol doesn't support half duplex.

Please feel free to raise a new ticket for any other new queries.

Regards,
Mrudang

Re: Is LS1046 SGMII @ QSGMII not support half mode?

Hmc510 — Fri, 09 Jun 2023 03:35:38 GMT

I have blocked the code here line 343 ~ 347, may I ask if there are any risks. Not considering packet loss

Re: Is LS1046 SGMII @ QSGMII not support half mode?

mrudangshelat-13 — Tue, 13 Jun 2023 09:52:06 GMT

Hi @Hmc510,

I suggest not to block those lines as the half duplex is not support to avoid any unnecessary errors because the half duplex was not thoroughly tested during the SDK implementation.

Regards,
Mrudang