* [PATCH 1/3] net: dsa: rzn1-a5psw: use a5psw_reg_rmw() to modify flooding resolution
2023-02-08 16:04 [PATCH 0/3] net: dsa: rzn1-a5psw: add supoport for vlan and .port_bridge_flags Clément Léger
@ 2023-02-08 16:04 ` Clément Léger
2023-02-08 16:04 ` [PATCH 2/3] net: dsa: rzn1-a5psw: add support for .port_bridge_flags Clément Léger
2023-02-08 16:04 ` [PATCH 3/3] net: dsa: rzn1-a5psw: add vlan support Clément Léger
2 siblings, 0 replies; 6+ messages in thread
From: Clément Léger @ 2023-02-08 16:04 UTC (permalink / raw)
To: Andrew Lunn, Florian Fainelli, Vladimir Oltean, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: Clément Léger, Thomas Petazzoni, Herve Codina,
Miquèl Raynal, Milan Stevanovic, Jimmy Lalande,
Pascal Eberhard, Arun Ramadoss, linux-renesas-soc, netdev,
linux-kernel
.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
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/3] net: dsa: rzn1-a5psw: add support for .port_bridge_flags
2023-02-08 16:04 [PATCH 0/3] net: dsa: rzn1-a5psw: add supoport for vlan and .port_bridge_flags Clément Léger
2023-02-08 16:04 ` [PATCH 1/3] net: dsa: rzn1-a5psw: use a5psw_reg_rmw() to modify flooding resolution Clément Léger
@ 2023-02-08 16:04 ` Clément Léger
2023-02-08 16:04 ` [PATCH 3/3] net: dsa: rzn1-a5psw: add vlan support Clément Léger
2 siblings, 0 replies; 6+ messages in thread
From: Clément Léger @ 2023-02-08 16:04 UTC (permalink / raw)
To: Andrew Lunn, Florian Fainelli, Vladimir Oltean, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: Clément Léger, Thomas Petazzoni, Herve Codina,
Miquèl Raynal, Milan Stevanovic, Jimmy Lalande,
Pascal Eberhard, Arun Ramadoss, linux-renesas-soc, netdev,
linux-kernel
When running vlan test (bridge_vlan_aware/unaware.sh), there were some
failure due to the lack .port_bridge_flag function to disable port
flooding. Implement this operation for BR_LEARNING, BR_FLOOD,
BR_MCAST_FLOOD and BR_BCAST_FLOOD.
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
drivers/net/dsa/rzn1_a5psw.c | 45 ++++++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c
index 8b7d4a371f8b..0ce3948952db 100644
--- a/drivers/net/dsa/rzn1_a5psw.c
+++ b/drivers/net/dsa/rzn1_a5psw.c
@@ -342,6 +342,49 @@ static void a5psw_port_bridge_leave(struct dsa_switch *ds, int port,
a5psw->br_dev = NULL;
}
+static int a5psw_port_pre_bridge_flags(struct dsa_switch *ds, int port,
+ struct switchdev_brport_flags flags,
+ struct netlink_ext_ack *extack)
+{
+ if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
+ BR_BCAST_FLOOD))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+a5psw_port_bridge_flags(struct dsa_switch *ds, int port,
+ struct switchdev_brport_flags flags,
+ struct netlink_ext_ack *extack)
+{
+ struct a5psw *a5psw = ds->priv;
+ u32 val;
+
+ if (flags.mask & BR_LEARNING) {
+ val = flags.val & BR_LEARNING ? 0 : A5PSW_INPUT_LEARN_DIS(port);
+ a5psw_reg_rmw(a5psw, A5PSW_INPUT_LEARN,
+ A5PSW_INPUT_LEARN_DIS(port), val);
+ }
+
+ if (flags.mask & BR_FLOOD) {
+ val = flags.val & BR_FLOOD ? BIT(port) : 0;
+ a5psw_reg_rmw(a5psw, A5PSW_UCAST_DEF_MASK, BIT(port), val);
+ }
+
+ if (flags.mask & BR_MCAST_FLOOD) {
+ val = flags.val & BR_MCAST_FLOOD ? BIT(port) : 0;
+ a5psw_reg_rmw(a5psw, A5PSW_MCAST_DEF_MASK, BIT(port), val);
+ }
+
+ if (flags.mask & BR_BCAST_FLOOD) {
+ val = flags.val & BR_BCAST_FLOOD ? BIT(port) : 0;
+ a5psw_reg_rmw(a5psw, A5PSW_BCAST_DEF_MASK, BIT(port), val);
+ }
+
+ return 0;
+}
+
static void a5psw_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
{
u32 mask = A5PSW_INPUT_LEARN_DIS(port) | A5PSW_INPUT_LEARN_BLOCK(port);
@@ -754,6 +797,8 @@ static const struct dsa_switch_ops a5psw_switch_ops = {
.set_ageing_time = a5psw_set_ageing_time,
.port_bridge_join = a5psw_port_bridge_join,
.port_bridge_leave = a5psw_port_bridge_leave,
+ .port_pre_bridge_flags = a5psw_port_pre_bridge_flags,
+ .port_bridge_flags = a5psw_port_bridge_flags,
.port_stp_state_set = a5psw_port_stp_state_set,
.port_fast_age = a5psw_port_fast_age,
.port_fdb_add = a5psw_port_fdb_add,
--
2.39.0
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 3/3] net: dsa: rzn1-a5psw: add vlan support
2023-02-08 16:04 [PATCH 0/3] net: dsa: rzn1-a5psw: add supoport for vlan and .port_bridge_flags Clément Léger
2023-02-08 16:04 ` [PATCH 1/3] net: dsa: rzn1-a5psw: use a5psw_reg_rmw() to modify flooding resolution Clément Léger
2023-02-08 16:04 ` [PATCH 2/3] net: dsa: rzn1-a5psw: add support for .port_bridge_flags Clément Léger
@ 2023-02-08 16:04 ` Clément Léger
2023-02-09 10:38 ` Simon Horman
2 siblings, 1 reply; 6+ messages in thread
From: Clément Léger @ 2023-02-08 16:04 UTC (permalink / raw)
To: Andrew Lunn, Florian Fainelli, Vladimir Oltean, David S. Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: Clément Léger, Thomas Petazzoni, Herve Codina,
Miquèl Raynal, Milan Stevanovic, Jimmy Lalande,
Pascal Eberhard, Arun Ramadoss, linux-renesas-soc, netdev,
linux-kernel
Add support for vlan operation (add, del, filtering) on the RZN1
driver. The a5psw switch supports up to 32 VLAN IDs with filtering,
tagged/untagged VLANs and PVID for each ports.
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
drivers/net/dsa/rzn1_a5psw.c | 167 +++++++++++++++++++++++++++++++++++
drivers/net/dsa/rzn1_a5psw.h | 8 +-
2 files changed, 172 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c
index 0ce3948952db..de6b18ec647d 100644
--- a/drivers/net/dsa/rzn1_a5psw.c
+++ b/drivers/net/dsa/rzn1_a5psw.c
@@ -583,6 +583,147 @@ static int a5psw_port_fdb_dump(struct dsa_switch *ds, int port,
return ret;
}
+static int a5psw_port_vlan_filtering(struct dsa_switch *ds, int port,
+ bool vlan_filtering,
+ struct netlink_ext_ack *extack)
+{
+ u32 mask = BIT(port + A5PSW_VLAN_VERI_SHIFT) |
+ BIT(port + A5PSW_VLAN_DISC_SHIFT);
+ struct a5psw *a5psw = ds->priv;
+ u32 val = 0;
+
+ if (vlan_filtering)
+ val = BIT(port + A5PSW_VLAN_VERI_SHIFT) |
+ BIT(port + A5PSW_VLAN_DISC_SHIFT);
+
+ a5psw_reg_rmw(a5psw, A5PSW_VLAN_VERIFY, mask, val);
+
+ return 0;
+}
+
+static int a5psw_find_vlan_entry(struct a5psw *a5psw, u16 vid)
+{
+ u32 vlan_res;
+ int i;
+
+ /* Find vlan for this port */
+ for (i = 0; i < A5PSW_VLAN_COUNT; i++) {
+ vlan_res = a5psw_reg_readl(a5psw, A5PSW_VLAN_RES(i));
+ if (FIELD_GET(A5PSW_VLAN_RES_VLANID, vlan_res) == vid)
+ return i;
+ }
+
+ return -1;
+}
+
+static int a5psw_get_vlan_res_entry(struct a5psw *a5psw, u16 newvid)
+{
+ u32 vlan_res;
+ int i;
+
+ /* Find a free VLAN entry */
+ for (i = 0; i < A5PSW_VLAN_COUNT; i++) {
+ vlan_res = a5psw_reg_readl(a5psw, A5PSW_VLAN_RES(i));
+ if (!(FIELD_GET(A5PSW_VLAN_RES_PORTMASK, vlan_res))) {
+ vlan_res = FIELD_PREP(A5PSW_VLAN_RES_VLANID, newvid);
+ a5psw_reg_writel(a5psw, A5PSW_VLAN_RES(i), vlan_res);
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+static void a5psw_port_vlan_tagged_cfg(struct a5psw *a5psw, int vlan_res_id,
+ int port, bool set)
+{
+ u32 mask = A5PSW_VLAN_RES_WR_PORTMASK | A5PSW_VLAN_RES_RD_TAGMASK |
+ BIT(port);
+ u32 vlan_res_off = A5PSW_VLAN_RES(vlan_res_id);
+ u32 val = A5PSW_VLAN_RES_WR_TAGMASK, reg;
+
+ if (set)
+ val |= BIT(port);
+
+ /* Toggle tag mask read */
+ a5psw_reg_writel(a5psw, vlan_res_off, A5PSW_VLAN_RES_RD_TAGMASK);
+ reg = a5psw_reg_readl(a5psw, vlan_res_off);
+ a5psw_reg_writel(a5psw, vlan_res_off, A5PSW_VLAN_RES_RD_TAGMASK);
+
+ reg &= ~mask;
+ reg |= val;
+ a5psw_reg_writel(a5psw, vlan_res_off, reg);
+}
+
+static void a5psw_port_vlan_cfg(struct a5psw *a5psw, int vlan_res_id, int port,
+ bool set)
+{
+ u32 mask = A5PSW_VLAN_RES_WR_TAGMASK | BIT(port);
+ u32 reg = A5PSW_VLAN_RES_WR_PORTMASK;
+
+ if (set)
+ reg |= BIT(port);
+
+ a5psw_reg_rmw(a5psw, A5PSW_VLAN_RES(vlan_res_id), mask, reg);
+}
+
+static int a5psw_port_vlan_add(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan,
+ struct netlink_ext_ack *extack)
+{
+ bool tagged = !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED);
+ bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ struct a5psw *a5psw = ds->priv;
+ u16 vid = vlan->vid;
+ int vlan_res_id;
+
+ dev_dbg(a5psw->dev, "Add VLAN %d on port %d, %s, %s\n",
+ vid, port, tagged ? "tagged" : "untagged",
+ pvid ? "PVID" : "no PVID");
+
+ vlan_res_id = a5psw_find_vlan_entry(a5psw, vid);
+ if (vlan_res_id < 0) {
+ vlan_res_id = a5psw_get_vlan_res_entry(a5psw, vid);
+ if (vlan_res_id < 0)
+ return -EINVAL;
+ }
+
+ a5psw_port_vlan_cfg(a5psw, vlan_res_id, port, true);
+ if (tagged)
+ a5psw_port_vlan_tagged_cfg(a5psw, vlan_res_id, port, true);
+
+ if (pvid) {
+ a5psw_reg_rmw(a5psw, A5PSW_VLAN_IN_MODE_ENA, BIT(port),
+ BIT(port));
+ a5psw_reg_writel(a5psw, A5PSW_SYSTEM_TAGINFO(port), vid);
+ }
+
+ return 0;
+}
+
+static int a5psw_port_vlan_del(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ struct a5psw *a5psw = ds->priv;
+ u16 vid = vlan->vid;
+ int vlan_res_id;
+
+ dev_dbg(a5psw->dev, "Removing VLAN %d on port %d\n", vid, port);
+
+ vlan_res_id = a5psw_find_vlan_entry(a5psw, vid);
+ if (vlan_res_id < 0)
+ return -EINVAL;
+
+ a5psw_port_vlan_cfg(a5psw, vlan_res_id, port, false);
+ a5psw_port_vlan_tagged_cfg(a5psw, vlan_res_id, port, false);
+
+ /* Disable PVID if the vid is matching the port one */
+ if (vid == a5psw_reg_readl(a5psw, A5PSW_SYSTEM_TAGINFO(port)))
+ a5psw_reg_rmw(a5psw, A5PSW_VLAN_IN_MODE_ENA, BIT(port), 0);
+
+ return 0;
+}
+
static u64 a5psw_read_stat(struct a5psw *a5psw, u32 offset, int port)
{
u32 reg_lo, reg_hi;
@@ -700,6 +841,27 @@ static void a5psw_get_eth_ctrl_stats(struct dsa_switch *ds, int port,
ctrl_stats->MACControlFramesReceived = stat;
}
+static void a5psw_vlan_setup(struct a5psw *a5psw, int port)
+{
+ u32 reg;
+
+ /* Enable TAG always mode for the port, this is actually controlled
+ * by VLAN_IN_MODE_ENA field which will be used for PVID insertion
+ */
+ reg = A5PSW_VLAN_IN_MODE_TAG_ALWAYS;
+ reg <<= A5PSW_VLAN_IN_MODE_PORT_SHIFT(port);
+ a5psw_reg_rmw(a5psw, A5PSW_VLAN_IN_MODE, A5PSW_VLAN_IN_MODE_PORT(port),
+ reg);
+
+ /* Set transparent mode for output frame manipulation, this will depend
+ * on the VLAN_RES configuration mode
+ */
+ reg = A5PSW_VLAN_OUT_MODE_TRANSPARENT;
+ reg <<= A5PSW_VLAN_OUT_MODE_PORT_SHIFT(port);
+ a5psw_reg_rmw(a5psw, A5PSW_VLAN_OUT_MODE,
+ A5PSW_VLAN_OUT_MODE_PORT(port), reg);
+}
+
static int a5psw_setup(struct dsa_switch *ds)
{
struct a5psw *a5psw = ds->priv;
@@ -772,6 +934,8 @@ static int a5psw_setup(struct dsa_switch *ds)
/* Enable management forward only for user ports */
if (dsa_port_is_user(dp))
a5psw_port_mgmtfwd_set(a5psw, port, true);
+
+ a5psw_vlan_setup(a5psw, port);
}
return 0;
@@ -801,6 +965,9 @@ static const struct dsa_switch_ops a5psw_switch_ops = {
.port_bridge_flags = a5psw_port_bridge_flags,
.port_stp_state_set = a5psw_port_stp_state_set,
.port_fast_age = a5psw_port_fast_age,
+ .port_vlan_filtering = a5psw_port_vlan_filtering,
+ .port_vlan_add = a5psw_port_vlan_add,
+ .port_vlan_del = a5psw_port_vlan_del,
.port_fdb_add = a5psw_port_fdb_add,
.port_fdb_del = a5psw_port_fdb_del,
.port_fdb_dump = a5psw_port_fdb_dump,
diff --git a/drivers/net/dsa/rzn1_a5psw.h b/drivers/net/dsa/rzn1_a5psw.h
index c67abd49c013..2bad2e3edc2a 100644
--- a/drivers/net/dsa/rzn1_a5psw.h
+++ b/drivers/net/dsa/rzn1_a5psw.h
@@ -50,7 +50,9 @@
#define A5PSW_VLAN_IN_MODE_TAG_ALWAYS 0x2
#define A5PSW_VLAN_OUT_MODE 0x2C
-#define A5PSW_VLAN_OUT_MODE_PORT(port) (GENMASK(1, 0) << ((port) * 2))
+#define A5PSW_VLAN_OUT_MODE_PORT_SHIFT(port) ((port) * 2)
+#define A5PSW_VLAN_OUT_MODE_PORT(port) (GENMASK(1, 0) << \
+ A5PSW_VLAN_OUT_MODE_PORT_SHIFT(port))
#define A5PSW_VLAN_OUT_MODE_DIS 0x0
#define A5PSW_VLAN_OUT_MODE_STRIP 0x1
#define A5PSW_VLAN_OUT_MODE_TAG_THROUGH 0x2
@@ -59,7 +61,7 @@
#define A5PSW_VLAN_IN_MODE_ENA 0x30
#define A5PSW_VLAN_TAG_ID 0x34
-#define A5PSW_SYSTEM_TAGINFO(port) (0x200 + A5PSW_PORT_OFFSET(port))
+#define A5PSW_SYSTEM_TAGINFO(port) (0x200 + 4 * (port))
#define A5PSW_AUTH_PORT(port) (0x240 + 4 * (port))
#define A5PSW_AUTH_PORT_AUTHORIZED BIT(0)
@@ -68,7 +70,7 @@
#define A5PSW_VLAN_RES_WR_PORTMASK BIT(30)
#define A5PSW_VLAN_RES_WR_TAGMASK BIT(29)
#define A5PSW_VLAN_RES_RD_TAGMASK BIT(28)
-#define A5PSW_VLAN_RES_ID GENMASK(16, 5)
+#define A5PSW_VLAN_RES_VLANID GENMASK(16, 5)
#define A5PSW_VLAN_RES_PORTMASK GENMASK(4, 0)
#define A5PSW_RXMATCH_CONFIG(port) (0x3e80 + 4 * (port))
--
2.39.0
^ permalink raw reply related [flat|nested] 6+ messages in thread