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mlxsw: spectrum_router: Return an error for routes added after abort

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We currently do not perform accounting in the driver and thus can't
reject routes before resources are exceeded.

However, in order to make users aware of the fact that routes are no
longer offloaded we can return an error for routes configured after the
abort mechanism was triggered.

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 10:17:35 +03:00 committed by David S. Miller
parent 6290182b2b
commit 50d10711cf
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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@ -5928,6 +5928,13 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb,
router->mlxsw_sp);
if (!err || info->extack)
return notifier_from_errno(err);
break;
case FIB_EVENT_ENTRY_ADD:
if (router->aborted) {
NL_SET_ERR_MSG_MOD(info->extack, "FIB offload was aborted. Not configuring route");
return notifier_from_errno(-EINVAL);
}
break;
}
fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC);