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realtek: Trap all frames with switch as destination to CPU-port

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This fixes a bug where frames sent to the switch itself were
flooded to all ports unless the MAC address of the CPU-port
was learned otherwise.

Tested-by: Wenli Looi <wlooi@ucalgary.ca>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
[fix code formatting]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
(cherry picked from commit 98bb26f9f7)
This commit is contained in:
Birger Koblitz 2022-04-24 20:37:33 +02:00 committed by Sander Vanheule
parent 1c6a179e1a
commit 7b4702afef
1 changed files with 9 additions and 0 deletions
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9
target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c
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@ -205,6 +205,15 @@ static int rtl83xx_setup(struct dsa_switch *ds)
priv->r->l2_learning_setup(); priv->r->l2_learning_setup();
/*
* Make sure all frames sent to the switch's MAC are trapped to the CPU-port
* 0: FWD, 1: DROP, 2: TRAP2CPU
*/
if (priv->family_id == RTL8380_FAMILY_ID)
sw_w32(0x2, RTL838X_SPCL_TRAP_SWITCH_MAC_CTRL);
else
sw_w32(0x2, RTL839X_SPCL_TRAP_SWITCH_MAC_CTRL);
/* Enable MAC Polling PHY again */ /* Enable MAC Polling PHY again */
rtl83xx_enable_phy_polling(priv); rtl83xx_enable_phy_polling(priv);
pr_debug("Please wait until PHY is settled\n"); pr_debug("Please wait until PHY is settled\n");