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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-06-29 17:06:53 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-29 10:46:23 -0700
commit26ee7b06a4d3086a3751b69c14663ba6c6bbfe7f (patch)
tree7aa83077cf9809f81a68f6bb1336cc35633acfc7 /net
parent3f6e32f92a027e91f001070ec324dd3b534d948c (diff)
downloadlinux-26ee7b06a4d3086a3751b69c14663ba6c6bbfe7f.tar.bz2
net: dsa: install the host MDB and FDB entries in the master's RX filter
If the DSA master implements strict address filtering, then the unicast and multicast addresses kept by the DSA CPU ports should be synchronized with the address lists of the DSA master. Note that we want the synchronization of the master's address lists even if the DSA switch doesn't support unicast/multicast database operations, on the premises that the packets will be flooded to the CPU in that case, and we should still instruct the master to receive them. This is why we do the dev_uc_add() etc first, even if dsa_port_notify() returns -EOPNOTSUPP. In turn, dev_uc_add() and friends return error only if memory allocation fails, so it is probably ok to check and propagate that error code and not just ignore it. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/dsa/port.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 1b80e0fbdfaa..778b0dc2bb39 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -655,6 +655,12 @@ int dsa_port_host_fdb_add(struct dsa_port *dp, const unsigned char *addr,
.addr = addr,
.vid = vid,
};
+ struct dsa_port *cpu_dp = dp->cpu_dp;
+ int err;
+
+ err = dev_uc_add(cpu_dp->master, addr);
+ if (err)
+ return err;
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_ADD, &info);
}
@@ -668,6 +674,12 @@ int dsa_port_host_fdb_del(struct dsa_port *dp, const unsigned char *addr,
.addr = addr,
.vid = vid,
};
+ struct dsa_port *cpu_dp = dp->cpu_dp;
+ int err;
+
+ err = dev_uc_del(cpu_dp->master, addr);
+ if (err)
+ return err;
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_DEL, &info);
}
@@ -715,6 +727,12 @@ int dsa_port_host_mdb_add(const struct dsa_port *dp,
.port = dp->index,
.mdb = mdb,
};
+ struct dsa_port *cpu_dp = dp->cpu_dp;
+ int err;
+
+ err = dev_mc_add(cpu_dp->master, mdb->addr);
+ if (err)
+ return err;
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_ADD, &info);
}
@@ -727,6 +745,12 @@ int dsa_port_host_mdb_del(const struct dsa_port *dp,
.port = dp->index,
.mdb = mdb,
};
+ struct dsa_port *cpu_dp = dp->cpu_dp;
+ int err;
+
+ err = dev_mc_del(cpu_dp->master, mdb->addr);
+ if (err)
+ return err;
return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_DEL, &info);
}