rtase: Fix flow control configuration

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The hardware has two sets of registers controlling TX/RX flow control.
The effective flow control state is determined by the logical OR of
these two sets of bits.

RTASE_FORCE_TXFLOW_EN and RTASE_FORCE_RXFLOW_EN in RTASE_CPLUS_CMD are
the bits used by the driver to control TX/RX flow control according to
the ethtool pause configuration.

RTASE_TXFLOW_EN and RTASE_RXFLOW_EN in RTASE_GPHY_STD_00 are another
set of TX/RX flow control enable bits. Clear them by default so they do
not keep flow control enabled independently of the driver setting.

With the RTASE_GPHY_STD_00 bits cleared, the effective flow control
state is controlled through RTASE_CPLUS_CMD, so the ethtool setting can
take effect correctly.

Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260505064121.31286-1-justinlai0215@realtek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Justin Lai 2026-05-05 14:41:21 +08:00 • committed by Jakub Kicinski

parent 2281958e60

commit fea3521e04

2 changed files with 7 additions and 0 deletions

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4

drivers/net/ethernet/realtek/rtase/rtase.h

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3

drivers/net/ethernet/realtek/rtase/rtase_main.c

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