aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/net/dsa
diff options
context:
space:
mode:
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/Kconfig2
-rw-r--r--net/dsa/dsa2.c19
-rw-r--r--net/dsa/dsa_priv.h25
-rw-r--r--net/dsa/slave.c59
-rw-r--r--net/dsa/switch.c15
-rw-r--r--net/dsa/tag_mtk.c19
-rw-r--r--net/dsa/tag_rtl4_a.c12
7 files changed, 100 insertions, 51 deletions
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index 3589224c8da9..58b8fc82cd3c 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -118,6 +118,8 @@ config NET_DSA_TAG_OCELOT
config NET_DSA_TAG_OCELOT_8021Q
tristate "Tag driver for Ocelot family of switches, using VLAN"
+ depends on MSCC_OCELOT_SWITCH_LIB || \
+ (MSCC_OCELOT_SWITCH_LIB=n && COMPILE_TEST)
select NET_DSA_TAG_8021Q
help
Say Y or M if you want to enable support for tagging frames with a
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 4d4956ed303b..3c3e56a1f34d 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -795,8 +795,14 @@ static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
list_for_each_entry(dp, &dst->ports, list) {
err = dsa_port_setup(dp);
- if (err)
+ if (err) {
+ dsa_port_devlink_teardown(dp);
+ dp->type = DSA_PORT_TYPE_UNUSED;
+ err = dsa_port_devlink_setup(dp);
+ if (err)
+ goto teardown;
continue;
+ }
}
return 0;
@@ -1066,6 +1072,7 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master)
{
struct dsa_switch *ds = dp->ds;
struct dsa_switch_tree *dst = ds->dst;
+ const struct dsa_device_ops *tag_ops;
enum dsa_tag_protocol tag_protocol;
tag_protocol = dsa_get_tag_protocol(dp, master);
@@ -1080,14 +1087,16 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master)
* nothing to do here.
*/
} else {
- dst->tag_ops = dsa_tag_driver_get(tag_protocol);
- if (IS_ERR(dst->tag_ops)) {
- if (PTR_ERR(dst->tag_ops) == -ENOPROTOOPT)
+ tag_ops = dsa_tag_driver_get(tag_protocol);
+ if (IS_ERR(tag_ops)) {
+ if (PTR_ERR(tag_ops) == -ENOPROTOOPT)
return -EPROBE_DEFER;
dev_warn(ds->dev, "No tagger for this switch\n");
dp->master = NULL;
- return PTR_ERR(dst->tag_ops);
+ return PTR_ERR(tag_ops);
}
+
+ dst->tag_ops = tag_ops;
}
dp->master = master;
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 2eeaa42f2e08..9d4b0e9b1aa1 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -230,8 +230,8 @@ int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr);
void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr);
extern const struct phylink_mac_ops dsa_port_phylink_mac_ops;
-static inline bool dsa_port_offloads_netdev(struct dsa_port *dp,
- struct net_device *dev)
+static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp,
+ struct net_device *dev)
{
/* Switchdev offloading can be configured on: */
@@ -241,12 +241,6 @@ static inline bool dsa_port_offloads_netdev(struct dsa_port *dp,
*/
return true;
- if (dp->bridge_dev == dev)
- /* DSA ports connected to a bridge, and event was emitted
- * for the bridge.
- */
- return true;
-
if (dp->lag_dev == dev)
/* DSA ports connected to a bridge via a LAG */
return true;
@@ -254,14 +248,23 @@ static inline bool dsa_port_offloads_netdev(struct dsa_port *dp,
return false;
}
+static inline bool dsa_port_offloads_bridge(struct dsa_port *dp,
+ struct net_device *bridge_dev)
+{
+ /* DSA ports connected to a bridge, and event was emitted
+ * for the bridge.
+ */
+ return dp->bridge_dev == bridge_dev;
+}
+
/* Returns true if any port of this tree offloads the given net_device */
-static inline bool dsa_tree_offloads_netdev(struct dsa_switch_tree *dst,
- struct net_device *dev)
+static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst,
+ struct net_device *dev)
{
struct dsa_port *dp;
list_for_each_entry(dp, &dst->ports, list)
- if (dsa_port_offloads_netdev(dp, dev))
+ if (dsa_port_offloads_bridge_port(dp, dev))
return true;
return false;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 491e3761b5f4..992fcab4b552 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -278,28 +278,43 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
struct dsa_port *dp = dsa_slave_to_port(dev);
int ret;
- if (!dsa_port_offloads_netdev(dp, attr->orig_dev))
- return -EOPNOTSUPP;
-
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+ if (!dsa_port_offloads_bridge_port(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
ret = dsa_port_set_state(dp, attr->u.stp_state);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
+ if (!dsa_port_offloads_bridge(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering,
extack);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
+ if (!dsa_port_offloads_bridge(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
ret = dsa_port_ageing_time(dp, attr->u.ageing_time);
break;
case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+ if (!dsa_port_offloads_bridge_port(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags,
extack);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+ if (!dsa_port_offloads_bridge_port(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, extack);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER:
+ if (!dsa_port_offloads_bridge(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
ret = dsa_port_mrouter(dp->cpu_dp, attr->u.mrouter, extack);
break;
default:
@@ -341,9 +356,6 @@ static int dsa_slave_vlan_add(struct net_device *dev,
struct switchdev_obj_port_vlan vlan;
int err;
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
- return -EOPNOTSUPP;
-
if (dsa_port_skip_vlan_configuration(dp)) {
NL_SET_ERR_MSG_MOD(extack, "skipping configuration of VLAN");
return 0;
@@ -391,27 +403,36 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_MDB:
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
return -EOPNOTSUPP;
+
err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_HOST_MDB:
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
+
/* DSA can directly translate this to a normal MDB add,
* but on the CPU port.
*/
err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
+
err = dsa_slave_vlan_add(dev, obj, extack);
break;
case SWITCHDEV_OBJ_ID_MRP:
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
return -EOPNOTSUPP;
+
err = dsa_port_mrp_add(dp, SWITCHDEV_OBJ_MRP(obj));
break;
case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
return -EOPNOTSUPP;
+
err = dsa_port_mrp_add_ring_role(dp,
SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
break;
@@ -431,9 +452,6 @@ static int dsa_slave_vlan_del(struct net_device *dev,
struct switchdev_obj_port_vlan *vlan;
int err;
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
- return -EOPNOTSUPP;
-
if (dsa_port_skip_vlan_configuration(dp))
return 0;
@@ -459,27 +477,36 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_MDB:
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
return -EOPNOTSUPP;
+
err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_HOST_MDB:
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
+
/* DSA can directly translate this to a normal MDB add,
* but on the CPU port.
*/
err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_VLAN:
+ if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
+ return -EOPNOTSUPP;
+
err = dsa_slave_vlan_del(dev, obj);
break;
case SWITCHDEV_OBJ_ID_MRP:
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
return -EOPNOTSUPP;
+
err = dsa_port_mrp_del(dp, SWITCHDEV_OBJ_MRP(obj));
break;
case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
- if (!dsa_port_offloads_netdev(dp, obj->orig_dev))
+ if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
return -EOPNOTSUPP;
+
err = dsa_port_mrp_del_ring_role(dp,
SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
break;
@@ -2298,7 +2325,7 @@ static int dsa_slave_switchdev_event(struct notifier_block *unused,
* other ports bridged with the LAG should be able to
* autonomously forward towards it.
*/
- if (dsa_tree_offloads_netdev(dp->ds->dst, dev))
+ if (dsa_tree_offloads_bridge_port(dp->ds->dst, dev))
return NOTIFY_DONE;
}
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index 4b5da89dc27a..32963276452f 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -107,7 +107,7 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
bool unset_vlan_filtering = br_vlan_enabled(info->br);
struct dsa_switch_tree *dst = ds->dst;
struct netlink_ext_ack extack = {0};
- int err, i;
+ int err, port;
if (dst->index == info->tree_index && ds->index == info->sw_index &&
ds->ops->port_bridge_join)
@@ -124,13 +124,16 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
* it. That is a good thing, because that lets us handle it and also
* handle the case where the switch's vlan_filtering setting is global
* (not per port). When that happens, the correct moment to trigger the
- * vlan_filtering callback is only when the last port left this bridge.
+ * vlan_filtering callback is only when the last port leaves the last
+ * VLAN-aware bridge.
*/
if (unset_vlan_filtering && ds->vlan_filtering_is_global) {
- for (i = 0; i < ds->num_ports; i++) {
- if (i == info->port)
- continue;
- if (dsa_to_port(ds, i)->bridge_dev == info->br) {
+ for (port = 0; port < ds->num_ports; port++) {
+ struct net_device *bridge_dev;
+
+ bridge_dev = dsa_to_port(ds, port)->bridge_dev;
+
+ if (bridge_dev && br_vlan_enabled(bridge_dev)) {
unset_vlan_filtering = false;
break;
}
diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c
index 38dcdded74c0..59748487664f 100644
--- a/net/dsa/tag_mtk.c
+++ b/net/dsa/tag_mtk.c
@@ -13,6 +13,7 @@
#define MTK_HDR_LEN 4
#define MTK_HDR_XMIT_UNTAGGED 0
#define MTK_HDR_XMIT_TAGGED_TPID_8100 1
+#define MTK_HDR_XMIT_TAGGED_TPID_88A8 2
#define MTK_HDR_RECV_SOURCE_PORT_MASK GENMASK(2, 0)
#define MTK_HDR_XMIT_DP_BIT_MASK GENMASK(5, 0)
#define MTK_HDR_XMIT_SA_DIS BIT(6)
@@ -21,8 +22,8 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
+ u8 xmit_tpid;
u8 *mtk_tag;
- bool is_vlan_skb = true;
unsigned char *dest = eth_hdr(skb)->h_dest;
bool is_multicast_skb = is_multicast_ether_addr(dest) &&
!is_broadcast_ether_addr(dest);
@@ -33,10 +34,17 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
* the both special and VLAN tag at the same time and then look up VLAN
* table with VID.
*/
- if (!skb_vlan_tagged(skb)) {
+ switch (skb->protocol) {
+ case htons(ETH_P_8021Q):
+ xmit_tpid = MTK_HDR_XMIT_TAGGED_TPID_8100;
+ break;
+ case htons(ETH_P_8021AD):
+ xmit_tpid = MTK_HDR_XMIT_TAGGED_TPID_88A8;
+ break;
+ default:
+ xmit_tpid = MTK_HDR_XMIT_UNTAGGED;
skb_push(skb, MTK_HDR_LEN);
memmove(skb->data, skb->data + MTK_HDR_LEN, 2 * ETH_ALEN);
- is_vlan_skb = false;
}
mtk_tag = skb->data + 2 * ETH_ALEN;
@@ -44,8 +52,7 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
/* Mark tag attribute on special tag insertion to notify hardware
* whether that's a combined special tag with 802.1Q header.
*/
- mtk_tag[0] = is_vlan_skb ? MTK_HDR_XMIT_TAGGED_TPID_8100 :
- MTK_HDR_XMIT_UNTAGGED;
+ mtk_tag[0] = xmit_tpid;
mtk_tag[1] = (1 << dp->index) & MTK_HDR_XMIT_DP_BIT_MASK;
/* Disable SA learning for multicast frames */
@@ -53,7 +60,7 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb,
mtk_tag[1] |= MTK_HDR_XMIT_SA_DIS;
/* Tag control information is kept for 802.1Q */
- if (!is_vlan_skb) {
+ if (xmit_tpid == MTK_HDR_XMIT_UNTAGGED) {
mtk_tag[2] = 0;
mtk_tag[3] = 0;
}
diff --git a/net/dsa/tag_rtl4_a.c b/net/dsa/tag_rtl4_a.c
index c17d39b4a1a0..e9176475bac8 100644
--- a/net/dsa/tag_rtl4_a.c
+++ b/net/dsa/tag_rtl4_a.c
@@ -35,14 +35,12 @@ static struct sk_buff *rtl4a_tag_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
+ __be16 *p;
u8 *tag;
- u16 *p;
u16 out;
/* Pad out to at least 60 bytes */
- if (unlikely(eth_skb_pad(skb)))
- return NULL;
- if (skb_cow_head(skb, RTL4_A_HDR_LEN) < 0)
+ if (unlikely(__skb_put_padto(skb, ETH_ZLEN, false)))
return NULL;
netdev_dbg(dev, "add realtek tag to package to port %d\n",
@@ -53,13 +51,13 @@ static struct sk_buff *rtl4a_tag_xmit(struct sk_buff *skb,
tag = skb->data + 2 * ETH_ALEN;
/* Set Ethertype */
- p = (u16 *)tag;
+ p = (__be16 *)tag;
*p = htons(RTL4_A_ETHERTYPE);
out = (RTL4_A_PROTOCOL_RTL8366RB << 12) | (2 << 8);
- /* The lower bits is the port numer */
+ /* The lower bits is the port number */
out |= (u8)dp->index;
- p = (u16 *)(tag + 2);
+ p = (__be16 *)(tag + 2);
*p = htons(out);
return skb;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.