^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/rtnetlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <net/switchdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "br_private.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) static int br_switchdev_mark_get(struct net_bridge *br, struct net_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct net_bridge_port *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) /* dev is yet to be added to the port list. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) list_for_each_entry(p, &br->port_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) if (netdev_port_same_parent_id(dev, p->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) return p->offload_fwd_mark;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) return ++br->offload_fwd_mark;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) int nbp_switchdev_mark_set(struct net_bridge_port *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct netdev_phys_item_id ppid = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ASSERT_RTNL();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) err = dev_get_port_parent_id(p->dev, &ppid, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (err == -EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) p->offload_fwd_mark = br_switchdev_mark_get(p->br, p->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) void nbp_switchdev_frame_mark(const struct net_bridge_port *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (skb->offload_fwd_mark && !WARN_ON_ONCE(!p->offload_fwd_mark))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) BR_INPUT_SKB_CB(skb)->offload_fwd_mark = p->offload_fwd_mark;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) const struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return !skb->offload_fwd_mark ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) BR_INPUT_SKB_CB(skb)->offload_fwd_mark != p->offload_fwd_mark;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /* Flags that can be offloaded to hardware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define BR_PORT_FLAGS_HW_OFFLOAD (BR_LEARNING | BR_FLOOD | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) BR_MCAST_FLOOD | BR_BCAST_FLOOD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) int br_switchdev_set_port_flag(struct net_bridge_port *p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) unsigned long flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) unsigned long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct switchdev_attr attr = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .orig_dev = p->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .id = SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .u.brport_flags = mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct switchdev_notifier_port_attr_info info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .attr = &attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (mask & ~BR_PORT_FLAGS_HW_OFFLOAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* We run from atomic context here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) err = call_switchdev_notifiers(SWITCHDEV_PORT_ATTR_SET, p->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) &info.info, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) err = notifier_to_errno(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (err == -EOPNOTSUPP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) br_warn(p->br, "bridge flag offload is not supported %u(%s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) (unsigned int)p->port_no, p->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) attr.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) attr.flags = SWITCHDEV_F_DEFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) attr.u.brport_flags = flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) err = switchdev_port_attr_set(p->dev, &attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) br_warn(p->br, "error setting offload flag on port %u(%s)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) (unsigned int)p->port_no, p->dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) br_switchdev_fdb_call_notifiers(bool adding, const unsigned char *mac,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) u16 vid, struct net_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) bool added_by_user, bool offloaded)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct switchdev_notifier_fdb_info info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) unsigned long notifier_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) info.addr = mac;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) info.vid = vid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) info.added_by_user = added_by_user;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) info.offloaded = offloaded;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) notifier_type = adding ? SWITCHDEV_FDB_ADD_TO_DEVICE : SWITCHDEV_FDB_DEL_TO_DEVICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) call_switchdev_notifiers(notifier_type, dev, &info.info, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (!fdb->dst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (test_bit(BR_FDB_LOCAL, &fdb->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) case RTM_DELNEIGH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) br_switchdev_fdb_call_notifiers(false, fdb->key.addr.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) fdb->key.vlan_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) fdb->dst->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) test_bit(BR_FDB_ADDED_BY_USER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) &fdb->flags),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) test_bit(BR_FDB_OFFLOADED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) &fdb->flags));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) case RTM_NEWNEIGH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) br_switchdev_fdb_call_notifiers(true, fdb->key.addr.addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) fdb->key.vlan_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) fdb->dst->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) test_bit(BR_FDB_ADDED_BY_USER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) &fdb->flags),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) test_bit(BR_FDB_OFFLOADED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) &fdb->flags));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct netlink_ext_ack *extack)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct switchdev_obj_port_vlan v = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .obj.orig_dev = dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .flags = flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .vid_begin = vid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .vid_end = vid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return switchdev_port_obj_add(dev, &v.obj, extack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) struct switchdev_obj_port_vlan v = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) .obj.orig_dev = dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .vid_begin = vid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .vid_end = vid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return switchdev_port_obj_del(dev, &v.obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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