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There are 2 ways in which a DSA user port may become handled by 2 CPU ports in a LAG: (1) its current DSA master joins a LAG ip link del bond0 && ip link add bond0 type bond mode 802.3ad ip link set eno2 master bond0 When this happens, all user ports with "eno2" as DSA master get automatically migrated to "bond0" as DSA master. (2) it is explicitly configured as such by the user # Before, the DSA master was eno3 ip link set swp0 type dsa master bond0 The design of this configuration is that the LAG device dynamically becomes a DSA master through dsa_master_setup() when the first physical DSA master becomes a LAG slave, and stops being so through dsa_master_teardown() when the last physical DSA master leaves. A LAG interface is considered as a valid DSA master only if it contains existing DSA masters, and no other lower interfaces. Therefore, we mainly rely on method (1) to enter this configuration. Each physical DSA master (LAG slave) retains its dev->dsa_ptr for when it becomes a standalone DSA master again. But the LAG master also has a dev->dsa_ptr, and this is actually duplicated from one of the physical LAG slaves, and therefore needs to be balanced when LAG slaves come and go. To the switch driver, putting DSA masters in a LAG is seen as putting their associated CPU ports in a LAG. We need to prepare cross-chip host FDB notifiers for CPU ports in a LAG, by calling the driver's ->lag_fdb_add method rather than ->port_fdb_add. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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| .. | ||
| dsa2.c | ||
| dsa_priv.h | ||
| dsa.c | ||
| Kconfig | ||
| Makefile | ||
| master.c | ||
| netlink.c | ||
| port.c | ||
| slave.c | ||
| switch.c | ||
| tag_8021q.c | ||
| tag_ar9331.c | ||
| tag_brcm.c | ||
| tag_dsa.c | ||
| tag_gswip.c | ||
| tag_hellcreek.c | ||
| tag_ksz.c | ||
| tag_lan9303.c | ||
| tag_mtk.c | ||
| tag_ocelot_8021q.c | ||
| tag_ocelot.c | ||
| tag_qca.c | ||
| tag_rtl4_a.c | ||
| tag_rtl8_4.c | ||
| tag_rzn1_a5psw.c | ||
| tag_sja1105.c | ||
| tag_trailer.c | ||
| tag_xrs700x.c | ||