Messages in this thread Patch in this message | | | From | Clément Léger <> | Subject | [PATCH 1/3] net: dsa: rzn1-a5psw: use a5psw_reg_rmw() to modify flooding resolution | Date | Wed, 8 Feb 2023 17:04:51 +0100 |
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.port_bridge_flags will be added and allows to modify the flood mask independently for each port. Keeping the existing bridged_ports write in a5psw_flooding_set_resolution() would potentially messed up this. Use a read-modify-write to set that value and move bridged_ports handling in bridge_port_join/leave.
Signed-off-by: Clément Léger <clement.leger@bootlin.com> --- drivers/net/dsa/rzn1_a5psw.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c index 919027cf2012..8b7d4a371f8b 100644 --- a/drivers/net/dsa/rzn1_a5psw.c +++ b/drivers/net/dsa/rzn1_a5psw.c @@ -299,13 +299,9 @@ static void a5psw_flooding_set_resolution(struct a5psw *a5psw, int port, A5PSW_MCAST_DEF_MASK}; int i; - if (set) - a5psw->bridged_ports |= BIT(port); - else - a5psw->bridged_ports &= ~BIT(port); - for (i = 0; i < ARRAY_SIZE(offsets); i++) - a5psw_reg_writel(a5psw, offsets[i], a5psw->bridged_ports); + a5psw_reg_rmw(a5psw, offsets[i], BIT(port), + set ? BIT(port) : 0); } static int a5psw_port_bridge_join(struct dsa_switch *ds, int port, @@ -326,6 +322,8 @@ static int a5psw_port_bridge_join(struct dsa_switch *ds, int port, a5psw_flooding_set_resolution(a5psw, port, true); a5psw_port_mgmtfwd_set(a5psw, port, false); + a5psw->bridged_ports |= BIT(port); + return 0; } @@ -334,6 +332,8 @@ static void a5psw_port_bridge_leave(struct dsa_switch *ds, int port, { struct a5psw *a5psw = ds->priv; + a5psw->bridged_ports &= ~BIT(port); + a5psw_flooding_set_resolution(a5psw, port, false); a5psw_port_mgmtfwd_set(a5psw, port, true); -- 2.39.0
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