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998b973157
* use interface mode switching only when operating in C45 mode Linux prevents switching the interface mode when using C22 MDIO, hence use rate-adapter mode in case the PHY controlled via C22. * use phy_read_paged where appropriate * use existing generic inline functions to handle 10GbE advertisements instead of redundantly defining register macros in realtek.c which are not actually vendor-specific. * make sure 10GbE advertisement is valid, preventing false-positive warning "Downshift occurred from negotiated speed 2.5Gbps to actual speed 1Gbps, check cabling!" with some link-partners using 1G mode. * Support Link Down Power Saving Mode (ALDPS) Signed-off-by: Daniel Golle <daniel@makrotopia.org>
29 lines
886 B
Diff
29 lines
886 B
Diff
From 929bb4d3cfbc7878326c0771a01a636d49c54b40 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Sat, 22 Apr 2023 01:25:39 +0100
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Subject: [PATCH 3/3] net: phy: realtek: check validity of 10GbE link-partner
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advertisement
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Only use link-partner advertisement bits for 10GbE modes if they are
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actually valid. Check LOCALOK and REMOTEOK bits and clear 10GbE modes
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unless both of them are set.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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drivers/net/phy/realtek.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/net/phy/realtek.c
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+++ b/drivers/net/phy/realtek.c
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@@ -698,6 +698,10 @@ static int rtl822x_read_status(struct ph
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if (lpadv < 0)
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return lpadv;
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+ if (!(lpadv & MDIO_AN_10GBT_STAT_REMOK) ||
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+ !(lpadv & MDIO_AN_10GBT_STAT_LOCOK))
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+ lpadv = 0;
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+
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mii_10gbt_stat_mod_linkmode_lpa_t(phydev->lp_advertising, lpadv);
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}
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