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mlxsw: spectrum_router: Return an error for non-default FIB rules

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Since commit 9776d32537 ("net: Move call_fib_rule_notifiers up in
fib_nl_newrule") it is possible to forbid the installation of
unsupported FIB rules.

Have mlxsw return an error for non-default FIB rules in addition to the
existing extack message.

Example:
# ip rule add from 198.51.100.1 table 10
Error: mlxsw_spectrum: FIB rules not supported.

Note that offload is only aborted when non-default FIB rules are already
installed and merely replayed during module initialization.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2018-05-02 10:17:34 +03:00 committed by David S. Miller
parent 794451c1b5
commit 6290182b2b
1 changed files with 7 additions and 7 deletions
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14
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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@ -5882,24 +5882,24 @@ static int mlxsw_sp_router_fib_rule_event(unsigned long event,
switch (info->family) {
case AF_INET:
if (!fib4_rule_default(rule) && !rule->l3mdev)
err = -1;
err = -EOPNOTSUPP;
break;
case AF_INET6:
if (!fib6_rule_default(rule) && !rule->l3mdev)
err = -1;
err = -EOPNOTSUPP;
break;
case RTNL_FAMILY_IPMR:
if (!ipmr_rule_default(rule) && !rule->l3mdev)
err = -1;
err = -EOPNOTSUPP;
break;
case RTNL_FAMILY_IP6MR:
if (!ip6mr_rule_default(rule) && !rule->l3mdev)
err = -1;
err = -EOPNOTSUPP;
break;
}
if (err < 0)
NL_SET_ERR_MSG_MOD(extack, "FIB rules not supported. Aborting offload");
NL_SET_ERR_MSG_MOD(extack, "FIB rules not supported");
return err;
}
@ -5926,8 +5926,8 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb,
case FIB_EVENT_RULE_DEL:
err = mlxsw_sp_router_fib_rule_event(event, info,
router->mlxsw_sp);
if (!err)
return NOTIFY_DONE;
if (!err || info->extack)
return notifier_from_errno(err);
}
fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC);