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Date: Mon, 23 Dec 2019 15:28:20 +0200
From: Ido Schimmel <idosch@...sch.org>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, dsahern@...il.com, roopa@...ulusnetworks.com,
jakub.kicinski@...ronome.com, jiri@...lanox.com,
Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 9/9] ipv6: Remove old route notifications and convert listeners
From: Ido Schimmel <idosch@...lanox.com>
Now that mlxsw is converted to use the new FIB notifications it is
possible to delete the old ones and use the new replace / append /
delete notifications.
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
---
.../ethernet/mellanox/mlxsw/spectrum_router.c | 9 ++-
drivers/net/netdevsim/fib.c | 1 -
include/net/fib_notifier.h | 2 -
net/ipv6/ip6_fib.c | 61 +++++--------------
net/ipv6/route.c | 18 +-----
5 files changed, 21 insertions(+), 70 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 295cdcb1c4c0..f62e8d67348c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -5966,7 +5966,7 @@ static void mlxsw_sp_router_fib6_event_work(struct work_struct *work)
mlxsw_sp_span_respin(mlxsw_sp);
switch (fib_work->event) {
- case FIB_EVENT_ENTRY_REPLACE_TMP:
+ case FIB_EVENT_ENTRY_REPLACE:
err = mlxsw_sp_router_fib6_replace(mlxsw_sp,
fib_work->fib6_work.rt_arr,
fib_work->fib6_work.nrt6);
@@ -5982,7 +5982,7 @@ static void mlxsw_sp_router_fib6_event_work(struct work_struct *work)
mlxsw_sp_router_fib_abort(mlxsw_sp);
mlxsw_sp_router_fib6_work_fini(&fib_work->fib6_work);
break;
- case FIB_EVENT_ENTRY_DEL_TMP:
+ case FIB_EVENT_ENTRY_DEL:
mlxsw_sp_router_fib6_del(mlxsw_sp,
fib_work->fib6_work.rt_arr,
fib_work->fib6_work.nrt6);
@@ -6068,9 +6068,9 @@ static int mlxsw_sp_router_fib6_event(struct mlxsw_sp_fib_event_work *fib_work,
int err;
switch (fib_work->event) {
- case FIB_EVENT_ENTRY_REPLACE_TMP: /* fall through */
+ case FIB_EVENT_ENTRY_REPLACE: /* fall through */
case FIB_EVENT_ENTRY_APPEND: /* fall through */
- case FIB_EVENT_ENTRY_DEL_TMP:
+ case FIB_EVENT_ENTRY_DEL:
fen6_info = container_of(info, struct fib6_entry_notifier_info,
info);
err = mlxsw_sp_router_fib6_work_init(&fib_work->fib6_work,
@@ -6174,7 +6174,6 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb,
return notifier_from_errno(err);
case FIB_EVENT_ENTRY_ADD: /* fall through */
case FIB_EVENT_ENTRY_REPLACE: /* fall through */
- case FIB_EVENT_ENTRY_REPLACE_TMP: /* fall through */
case FIB_EVENT_ENTRY_APPEND:
if (router->aborted) {
NL_SET_ERR_MSG_MOD(info->extack, "FIB offload was aborted. Not configuring route");
diff --git a/drivers/net/netdevsim/fib.c b/drivers/net/netdevsim/fib.c
index 4e02a4231fcb..b5df308b4e33 100644
--- a/drivers/net/netdevsim/fib.c
+++ b/drivers/net/netdevsim/fib.c
@@ -178,7 +178,6 @@ static int nsim_fib_event_nb(struct notifier_block *nb, unsigned long event,
break;
case FIB_EVENT_ENTRY_REPLACE: /* fall through */
- case FIB_EVENT_ENTRY_ADD: /* fall through */
case FIB_EVENT_ENTRY_DEL:
err = nsim_fib_event(data, info, event != FIB_EVENT_ENTRY_DEL);
break;
diff --git a/include/net/fib_notifier.h b/include/net/fib_notifier.h
index b3c54325caec..6d59221ff05a 100644
--- a/include/net/fib_notifier.h
+++ b/include/net/fib_notifier.h
@@ -23,8 +23,6 @@ enum fib_event_type {
FIB_EVENT_NH_DEL,
FIB_EVENT_VIF_ADD,
FIB_EVENT_VIF_DEL,
- FIB_EVENT_ENTRY_REPLACE_TMP,
- FIB_EVENT_ENTRY_DEL_TMP,
};
struct fib_notifier_ops {
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 67ddee539f77..b1e9a10e1133 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -423,8 +423,7 @@ int call_fib6_entry_notifiers_replace(struct net *net, struct fib6_info *rt)
};
rt->fib6_table->fib_seq++;
- return call_fib6_notifiers(net, FIB_EVENT_ENTRY_REPLACE_TMP,
- &info.info);
+ return call_fib6_notifiers(net, FIB_EVENT_ENTRY_REPLACE, &info.info);
}
struct fib6_dump_arg {
@@ -435,15 +434,7 @@ struct fib6_dump_arg {
static int fib6_rt_dump(struct fib6_info *rt, struct fib6_dump_arg *arg)
{
- if (rt == arg->net->ipv6.fib6_null_entry)
- return 0;
- return call_fib6_entry_notifier(arg->nb, FIB_EVENT_ENTRY_ADD,
- rt, arg->extack);
-}
-
-static int fib6_rt_dump_tmp(struct fib6_info *rt, struct fib6_dump_arg *arg)
-{
- enum fib_event_type fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
+ enum fib_event_type fib_event = FIB_EVENT_ENTRY_REPLACE;
int err;
if (!rt || rt == arg->net->ipv6.fib6_null_entry)
@@ -463,19 +454,9 @@ static int fib6_rt_dump_tmp(struct fib6_info *rt, struct fib6_dump_arg *arg)
static int fib6_node_dump(struct fib6_walker *w)
{
- struct fib6_info *rt;
- int err = 0;
-
- err = fib6_rt_dump_tmp(w->leaf, w->args);
- if (err)
- goto out;
+ int err;
- for_each_fib6_walker_rt(w) {
- err = fib6_rt_dump(rt, w->args);
- if (err)
- break;
- }
-out:
+ err = fib6_rt_dump(w->leaf, w->args);
w->leaf = NULL;
return err;
}
@@ -1220,25 +1201,21 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
add:
nlflags |= NLM_F_CREATE;
- if (!info->skip_notify_kernel) {
+ /* The route should only be notified if it is the first
+ * route in the node or if it is added as a sibling
+ * route to the first route in the node.
+ */
+ if (!info->skip_notify_kernel &&
+ (notify_sibling_rt || ins == &fn->leaf)) {
enum fib_event_type fib_event;
if (notify_sibling_rt)
fib_event = FIB_EVENT_ENTRY_APPEND;
else
- fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
- /* The route should only be notified if it is the first
- * route in the node or if it is added as a sibling
- * route to the first route in the node.
- */
- if (notify_sibling_rt || ins == &fn->leaf)
- err = call_fib6_entry_notifiers(info->nl_net,
- fib_event, rt,
- extack);
-
+ fib_event = FIB_EVENT_ENTRY_REPLACE;
err = call_fib6_entry_notifiers(info->nl_net,
- FIB_EVENT_ENTRY_ADD,
- rt, extack);
+ fib_event, rt,
+ extack);
if (err) {
struct fib6_info *sibling, *next_sibling;
@@ -1282,14 +1259,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
return -ENOENT;
}
- if (!info->skip_notify_kernel) {
- enum fib_event_type fib_event;
-
- fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
- if (ins == &fn->leaf)
- err = call_fib6_entry_notifiers(info->nl_net,
- fib_event, rt,
- extack);
+ if (!info->skip_notify_kernel && ins == &fn->leaf) {
err = call_fib6_entry_notifiers(info->nl_net,
FIB_EVENT_ENTRY_REPLACE,
rt, extack);
@@ -2007,11 +1977,10 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn,
if (!info->skip_notify_kernel) {
if (notify_del)
- call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL_TMP,
+ call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL,
rt, NULL);
else if (replace_rt)
call_fib6_entry_notifiers_replace(net, replace_rt);
- call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, rt, NULL);
}
if (!info->skip_notify)
inet6_rt_notify(RTM_DELROUTE, rt, info, 0);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 646716a47cc9..4b8659e077d3 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3787,15 +3787,10 @@ static int __ip6_del_rt_siblings(struct fib6_info *rt, struct fib6_config *cfg)
replace_rt);
else
call_fib6_multipath_entry_notifiers(net,
- FIB_EVENT_ENTRY_DEL_TMP,
+ FIB_EVENT_ENTRY_DEL,
rt, rt->fib6_nsiblings,
NULL);
}
- call_fib6_multipath_entry_notifiers(net,
- FIB_EVENT_ENTRY_DEL,
- rt,
- rt->fib6_nsiblings,
- NULL);
list_for_each_entry_safe(sibling, next_sibling,
&rt->fib6_siblings,
fib6_siblings) {
@@ -5074,7 +5069,6 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
{
struct fib6_info *rt_notif = NULL, *rt_last = NULL;
struct nl_info *info = &cfg->fc_nlinfo;
- enum fib_event_type event_type;
struct fib6_config r_cfg;
struct rtnexthop *rtnh;
struct fib6_info *rt;
@@ -5210,7 +5204,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
if (rt_notif->fib6_nsiblings != nhn - 1)
fib_event = FIB_EVENT_ENTRY_APPEND;
else
- fib_event = FIB_EVENT_ENTRY_REPLACE_TMP;
+ fib_event = FIB_EVENT_ENTRY_REPLACE;
err = call_fib6_multipath_entry_notifiers(info->nl_net,
fib_event, rt_notif,
@@ -5221,14 +5215,6 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
goto add_errout;
}
}
- event_type = replace ? FIB_EVENT_ENTRY_REPLACE : FIB_EVENT_ENTRY_ADD;
- err = call_fib6_multipath_entry_notifiers(info->nl_net, event_type,
- rt_notif, nhn - 1, extack);
- if (err) {
- /* Delete all the siblings that were just added */
- err_nh = NULL;
- goto add_errout;
- }
/* success ... tell user about new route */
ip6_route_mpath_notify(rt_notif, rt_last, info, nlflags);
--
2.24.1
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