4.9-stable patches

added patches:
	net-dsa-b53-support-setting-learning-on-port.patch

diff --git a/queue-4.9/net-dsa-b53-support-setting-learning-on-port.patch b/queue-4.9/net-dsa-b53-support-setting-learning-on-port.patch
new file mode 100644 (file)
index 0000000..8ed394a
--- /dev/null
+++ b/queue-4.9/net-dsa-b53-support-setting-learning-on-port.patch
@@ -0,0 +1,122 @@
+From f9b3827ee66cfcf297d0acd6ecf33653a5f297ef Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <f.fainelli@gmail.com>
+Date: Mon, 22 Feb 2021 14:30:10 -0800
+Subject: net: dsa: b53: Support setting learning on port
+
+From: Florian Fainelli <f.fainelli@gmail.com>
+
+commit f9b3827ee66cfcf297d0acd6ecf33653a5f297ef upstream.
+
+Add support for being able to set the learning attribute on port, and
+make sure that the standalone ports start up with learning disabled.
+
+We can remove the code in bcm_sf2 that configured the ports learning
+attribute because we want the standalone ports to have learning disabled
+by default and port 7 cannot be bridged, so its learning attribute will
+not change past its initial configuration.
+
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+
+---
+ drivers/net/dsa/b53/b53_common.c |   20 ++++++++++++++++++++
+ drivers/net/dsa/b53/b53_regs.h   |    1 +
+ drivers/net/dsa/bcm_sf2.c        |    5 +++++
+ drivers/net/dsa/bcm_sf2_regs.h   |    2 ++
+ 4 files changed, 28 insertions(+)
+
+--- a/drivers/net/dsa/b53/b53_common.c
++++ b/drivers/net/dsa/b53/b53_common.c
+@@ -502,6 +502,19 @@ static void b53_imp_vlan_setup(struct ds
+       }
+ }
+ 
++static void b53_port_set_learning(struct b53_device *dev, int port,
++                                bool learning)
++{
++      u16 reg;
++
++      b53_read16(dev, B53_CTRL_PAGE, B53_DIS_LEARNING, &reg);
++      if (learning)
++              reg &= ~BIT(port);
++      else
++              reg |= BIT(port);
++      b53_write16(dev, B53_CTRL_PAGE, B53_DIS_LEARNING, reg);
++}
++
+ static int b53_enable_port(struct dsa_switch *ds, int port,
+                          struct phy_device *phy)
+ {
+@@ -509,6 +522,8 @@ static int b53_enable_port(struct dsa_sw
+       unsigned int cpu_port = dev->cpu_port;
+       u16 pvlan;
+ 
++      b53_port_set_learning(dev, port, false);
++
+       /* Clear the Rx and Tx disable bits and set to no spanning tree */
+       b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0);
+ 
+@@ -552,6 +567,8 @@ static void b53_enable_cpu_port(struct b
+                   PORT_CTRL_RX_MCST_EN |
+                   PORT_CTRL_RX_UCST_EN;
+       b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(cpu_port), port_ctrl);
++
++      b53_port_set_learning(dev, cpu_port, false);
+ }
+ 
+ static void b53_enable_mib(struct b53_device *dev)
+@@ -1375,6 +1392,8 @@ static int b53_br_join(struct dsa_switch
+       b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
+       dev->ports[port].vlan_ctl_mask = pvlan;
+ 
++      b53_port_set_learning(dev, port, true);
++
+       return 0;
+ }
+ 
+@@ -1426,6 +1445,7 @@ static void b53_br_leave(struct dsa_swit
+               vl->untag |= BIT(port) | BIT(dev->cpu_port);
+               b53_set_vlan_entry(dev, pvid, vl);
+       }
++      b53_port_set_learning(dev, port, false);
+ }
+ 
+ static void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state)
+--- a/drivers/net/dsa/b53/b53_regs.h
++++ b/drivers/net/dsa/b53/b53_regs.h
+@@ -112,6 +112,7 @@
+ #define B53_UC_FLOOD_MASK             0x32
+ #define B53_MC_FLOOD_MASK             0x34
+ #define B53_IPMC_FLOOD_MASK           0x36
++#define B53_DIS_LEARNING              0x3c
+ 
+ /*
+  * Override Ports 0-7 State on devices with xMII interfaces (8 bit)
+--- a/drivers/net/dsa/bcm_sf2.c
++++ b/drivers/net/dsa/bcm_sf2.c
+@@ -224,6 +224,11 @@ static int bcm_sf2_port_setup(struct dsa
+       reg &= ~P_TXQ_PSM_VDD(port);
+       core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
+ 
++      /* Disable learning */
++      reg = core_readl(priv, CORE_DIS_LEARN);
++      reg |= BIT(port);
++      core_writel(priv, reg, CORE_DIS_LEARN);
++
+       /* Clear the Rx and Tx disable bits and set to no spanning tree */
+       core_writel(priv, 0, CORE_G_PCTL_PORT(port));
+ 
+--- a/drivers/net/dsa/bcm_sf2_regs.h
++++ b/drivers/net/dsa/bcm_sf2_regs.h
+@@ -138,6 +138,8 @@
+ #define CORE_SWITCH_CTRL              0x00088
+ #define  MII_DUMB_FWDG_EN             (1 << 6)
+ 
++#define CORE_DIS_LEARN                        0x000f0
++
+ #define CORE_SFT_LRN_CTRL             0x000f8
+ #define  SW_LEARN_CNTL(x)             (1 << (x))
+ 

diff --git a/queue-4.9/series b/queue-4.9/series
index 09a51753b893d3dfb8e673e422095e2e569cc13e..bfcb9056de1a76da7c713607879fd95aa8e6dea9 100644 (file)
--- a/queue-4.9/series
+++ b/queue-4.9/series
@@ -1,3 +1,4 @@
 ext4-handle-error-of-ext4_setup_system_zone-on-remount.patch
 ext4-don-t-allow-overlapping-system-zones.patch
 ext4-check-journal-inode-extents-more-carefully.patch
+net-dsa-b53-support-setting-learning-on-port.patch