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path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c107
1 files changed, 68 insertions, 39 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 902e766a8ed3..1cda8a248b12 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -13,9 +13,9 @@
#include <linux/socket.h>
#include <linux/route.h>
#include <linux/gcd.h>
-#include <linux/random.h>
#include <linux/if_macvlan.h>
#include <linux/refcount.h>
+#include <linux/jhash.h>
#include <net/netevent.h>
#include <net/neighbour.h>
#include <net/arp.h>
@@ -2371,7 +2371,7 @@ static enum mlxsw_reg_rauht_op mlxsw_sp_rauht_op(bool adding)
MLXSW_REG_RAUHT_OP_WRITE_DELETE;
}
-static void
+static int
mlxsw_sp_router_neigh_entry_op4(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
enum mlxsw_reg_rauht_op op)
@@ -2385,10 +2385,10 @@ mlxsw_sp_router_neigh_entry_op4(struct mlxsw_sp *mlxsw_sp,
if (neigh_entry->counter_valid)
mlxsw_reg_rauht_pack_counter(rauht_pl,
neigh_entry->counter_index);
- mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl);
+ return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl);
}
-static void
+static int
mlxsw_sp_router_neigh_entry_op6(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
enum mlxsw_reg_rauht_op op)
@@ -2402,7 +2402,7 @@ mlxsw_sp_router_neigh_entry_op6(struct mlxsw_sp *mlxsw_sp,
if (neigh_entry->counter_valid)
mlxsw_reg_rauht_pack_counter(rauht_pl,
neigh_entry->counter_index);
- mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl);
+ return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl);
}
bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry)
@@ -2424,20 +2424,33 @@ mlxsw_sp_neigh_entry_update(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
bool adding)
{
+ enum mlxsw_reg_rauht_op op = mlxsw_sp_rauht_op(adding);
+ int err;
+
if (!adding && !neigh_entry->connected)
return;
neigh_entry->connected = adding;
if (neigh_entry->key.n->tbl->family == AF_INET) {
- mlxsw_sp_router_neigh_entry_op4(mlxsw_sp, neigh_entry,
- mlxsw_sp_rauht_op(adding));
+ err = mlxsw_sp_router_neigh_entry_op4(mlxsw_sp, neigh_entry,
+ op);
+ if (err)
+ return;
} else if (neigh_entry->key.n->tbl->family == AF_INET6) {
if (mlxsw_sp_neigh_ipv6_ignore(neigh_entry))
return;
- mlxsw_sp_router_neigh_entry_op6(mlxsw_sp, neigh_entry,
- mlxsw_sp_rauht_op(adding));
+ err = mlxsw_sp_router_neigh_entry_op6(mlxsw_sp, neigh_entry,
+ op);
+ if (err)
+ return;
} else {
WARN_ON_ONCE(1);
+ return;
}
+
+ if (adding)
+ neigh_entry->key.n->flags |= NTF_OFFLOADED;
+ else
+ neigh_entry->key.n->flags &= ~NTF_OFFLOADED;
}
void
@@ -2873,12 +2886,13 @@ mlxsw_sp_nexthop6_group_cmp(const struct mlxsw_sp_nexthop_group *nh_grp,
return false;
list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) {
+ struct fib6_nh *fib6_nh = &mlxsw_sp_rt6->rt->fib6_nh;
struct in6_addr *gw;
int ifindex, weight;
- ifindex = mlxsw_sp_rt6->rt->fib6_nh.nh_dev->ifindex;
- weight = mlxsw_sp_rt6->rt->fib6_nh.nh_weight;
- gw = &mlxsw_sp_rt6->rt->fib6_nh.nh_gw;
+ ifindex = fib6_nh->fib_nh_dev->ifindex;
+ weight = fib6_nh->fib_nh_weight;
+ gw = &fib6_nh->fib_nh_gw6;
if (!mlxsw_sp_nexthop6_group_has_nexthop(nh_grp, gw, ifindex,
weight))
return false;
@@ -2944,7 +2958,7 @@ mlxsw_sp_nexthop6_group_hash(struct mlxsw_sp_fib6_entry *fib6_entry, u32 seed)
struct net_device *dev;
list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) {
- dev = mlxsw_sp_rt6->rt->fib6_nh.nh_dev;
+ dev = mlxsw_sp_rt6->rt->fib6_nh.fib_nh_dev;
val ^= dev->ifindex;
}
@@ -3610,7 +3624,7 @@ static bool mlxsw_sp_nexthop4_ipip_type(const struct mlxsw_sp *mlxsw_sp,
const struct fib_nh *fib_nh,
enum mlxsw_sp_ipip_type *p_ipipt)
{
- struct net_device *dev = fib_nh->nh_dev;
+ struct net_device *dev = fib_nh->fib_nh_dev;
return dev &&
fib_nh->nh_parent->fib_type == RTN_UNICAST &&
@@ -3637,7 +3651,7 @@ static int mlxsw_sp_nexthop4_type_init(struct mlxsw_sp *mlxsw_sp,
struct fib_nh *fib_nh)
{
const struct mlxsw_sp_ipip_ops *ipip_ops;
- struct net_device *dev = fib_nh->nh_dev;
+ struct net_device *dev = fib_nh->fib_nh_dev;
struct mlxsw_sp_ipip_entry *ipip_entry;
struct mlxsw_sp_rif *rif;
int err;
@@ -3681,18 +3695,18 @@ static int mlxsw_sp_nexthop4_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh,
struct fib_nh *fib_nh)
{
- struct net_device *dev = fib_nh->nh_dev;
+ struct net_device *dev = fib_nh->fib_nh_dev;
struct in_device *in_dev;
int err;
nh->nh_grp = nh_grp;
nh->key.fib_nh = fib_nh;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
- nh->nh_weight = fib_nh->nh_weight;
+ nh->nh_weight = fib_nh->fib_nh_weight;
#else
nh->nh_weight = 1;
#endif
- memcpy(&nh->gw_addr, &fib_nh->nh_gw, sizeof(fib_nh->nh_gw));
+ memcpy(&nh->gw_addr, &fib_nh->fib_nh_gw4, sizeof(fib_nh->fib_nh_gw4));
err = mlxsw_sp_nexthop_insert(mlxsw_sp, nh);
if (err)
return err;
@@ -3705,7 +3719,7 @@ static int mlxsw_sp_nexthop4_init(struct mlxsw_sp *mlxsw_sp,
in_dev = __in_dev_get_rtnl(dev);
if (in_dev && IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev) &&
- fib_nh->nh_flags & RTNH_F_LINKDOWN)
+ fib_nh->fib_nh_flags & RTNH_F_LINKDOWN)
return 0;
err = mlxsw_sp_nexthop4_type_init(mlxsw_sp, nh, fib_nh);
@@ -3804,7 +3818,7 @@ static void mlxsw_sp_nexthop_rif_gone_sync(struct mlxsw_sp *mlxsw_sp,
static bool mlxsw_sp_fi_is_gateway(const struct mlxsw_sp *mlxsw_sp,
const struct fib_info *fi)
{
- return fi->fib_nh->nh_scope == RT_SCOPE_LINK ||
+ return fi->fib_nh->fib_nh_scope == RT_SCOPE_LINK ||
mlxsw_sp_nexthop4_ipip_type(mlxsw_sp, fi->fib_nh, NULL);
}
@@ -3946,9 +3960,9 @@ mlxsw_sp_rt6_nexthop(struct mlxsw_sp_nexthop_group *nh_grp,
struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i];
struct fib6_info *rt = mlxsw_sp_rt6->rt;
- if (nh->rif && nh->rif->dev == rt->fib6_nh.nh_dev &&
+ if (nh->rif && nh->rif->dev == rt->fib6_nh.fib_nh_dev &&
ipv6_addr_equal((const struct in6_addr *) &nh->gw_addr,
- &rt->fib6_nh.nh_gw))
+ &rt->fib6_nh.fib_nh_gw6))
return nh;
continue;
}
@@ -3966,7 +3980,7 @@ mlxsw_sp_fib4_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry)
fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_BLACKHOLE ||
fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_IPIP_DECAP ||
fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_NVE_DECAP) {
- nh_grp->nexthops->key.fib_nh->nh_flags |= RTNH_F_OFFLOAD;
+ nh_grp->nexthops->key.fib_nh->fib_nh_flags |= RTNH_F_OFFLOAD;
return;
}
@@ -3974,9 +3988,9 @@ mlxsw_sp_fib4_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry)
struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i];
if (nh->offloaded)
- nh->key.fib_nh->nh_flags |= RTNH_F_OFFLOAD;
+ nh->key.fib_nh->fib_nh_flags |= RTNH_F_OFFLOAD;
else
- nh->key.fib_nh->nh_flags &= ~RTNH_F_OFFLOAD;
+ nh->key.fib_nh->fib_nh_flags &= ~RTNH_F_OFFLOAD;
}
}
@@ -3992,7 +4006,7 @@ mlxsw_sp_fib4_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry)
for (i = 0; i < nh_grp->count; i++) {
struct mlxsw_sp_nexthop *nh = &nh_grp->nexthops[i];
- nh->key.fib_nh->nh_flags &= ~RTNH_F_OFFLOAD;
+ nh->key.fib_nh->fib_nh_flags &= ~RTNH_F_OFFLOAD;
}
}
@@ -4008,19 +4022,20 @@ mlxsw_sp_fib6_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry)
if (fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_LOCAL ||
fib_entry->type == MLXSW_SP_FIB_ENTRY_TYPE_BLACKHOLE) {
list_first_entry(&fib6_entry->rt6_list, struct mlxsw_sp_rt6,
- list)->rt->fib6_nh.nh_flags |= RTNH_F_OFFLOAD;
+ list)->rt->fib6_nh.fib_nh_flags |= RTNH_F_OFFLOAD;
return;
}
list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) {
struct mlxsw_sp_nexthop_group *nh_grp = fib_entry->nh_group;
+ struct fib6_nh *fib6_nh = &mlxsw_sp_rt6->rt->fib6_nh;
struct mlxsw_sp_nexthop *nh;
nh = mlxsw_sp_rt6_nexthop(nh_grp, mlxsw_sp_rt6);
if (nh && nh->offloaded)
- mlxsw_sp_rt6->rt->fib6_nh.nh_flags |= RTNH_F_OFFLOAD;
+ fib6_nh->fib_nh_flags |= RTNH_F_OFFLOAD;
else
- mlxsw_sp_rt6->rt->fib6_nh.nh_flags &= ~RTNH_F_OFFLOAD;
+ fib6_nh->fib_nh_flags &= ~RTNH_F_OFFLOAD;
}
}
@@ -4035,7 +4050,7 @@ mlxsw_sp_fib6_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry)
list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) {
struct fib6_info *rt = mlxsw_sp_rt6->rt;
- rt->fib6_nh.nh_flags &= ~RTNH_F_OFFLOAD;
+ rt->fib6_nh.fib_nh_flags &= ~RTNH_F_OFFLOAD;
}
}
@@ -4913,7 +4928,7 @@ static void mlxsw_sp_rt6_destroy(struct mlxsw_sp_rt6 *mlxsw_sp_rt6)
static bool mlxsw_sp_fib6_rt_can_mp(const struct fib6_info *rt)
{
/* RTF_CACHE routes are ignored */
- return (rt->fib6_flags & (RTF_GATEWAY | RTF_ADDRCONF)) == RTF_GATEWAY;
+ return !(rt->fib6_flags & RTF_ADDRCONF) && rt->fib6_nh.fib_nh_gw_family;
}
static struct fib6_info *
@@ -4972,8 +4987,8 @@ static bool mlxsw_sp_nexthop6_ipip_type(const struct mlxsw_sp *mlxsw_sp,
const struct fib6_info *rt,
enum mlxsw_sp_ipip_type *ret)
{
- return rt->fib6_nh.nh_dev &&
- mlxsw_sp_netdev_ipip_type(mlxsw_sp, rt->fib6_nh.nh_dev, ret);
+ return rt->fib6_nh.fib_nh_dev &&
+ mlxsw_sp_netdev_ipip_type(mlxsw_sp, rt->fib6_nh.fib_nh_dev, ret);
}
static int mlxsw_sp_nexthop6_type_init(struct mlxsw_sp *mlxsw_sp,
@@ -4983,7 +4998,7 @@ static int mlxsw_sp_nexthop6_type_init(struct mlxsw_sp *mlxsw_sp,
{
const struct mlxsw_sp_ipip_ops *ipip_ops;
struct mlxsw_sp_ipip_entry *ipip_entry;
- struct net_device *dev = rt->fib6_nh.nh_dev;
+ struct net_device *dev = rt->fib6_nh.fib_nh_dev;
struct mlxsw_sp_rif *rif;
int err;
@@ -5026,11 +5041,11 @@ static int mlxsw_sp_nexthop6_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh,
const struct fib6_info *rt)
{
- struct net_device *dev = rt->fib6_nh.nh_dev;
+ struct net_device *dev = rt->fib6_nh.fib_nh_dev;
nh->nh_grp = nh_grp;
- nh->nh_weight = rt->fib6_nh.nh_weight;
- memcpy(&nh->gw_addr, &rt->fib6_nh.nh_gw, sizeof(nh->gw_addr));
+ nh->nh_weight = rt->fib6_nh.fib_nh_weight;
+ memcpy(&nh->gw_addr, &rt->fib6_nh.fib_nh_gw6, sizeof(nh->gw_addr));
mlxsw_sp_nexthop_counter_alloc(mlxsw_sp, nh);
list_add_tail(&nh->router_list_node, &mlxsw_sp->router->nexthop_list);
@@ -5053,7 +5068,7 @@ static void mlxsw_sp_nexthop6_fini(struct mlxsw_sp *mlxsw_sp,
static bool mlxsw_sp_rt6_is_gateway(const struct mlxsw_sp *mlxsw_sp,
const struct fib6_info *rt)
{
- return rt->fib6_flags & RTF_GATEWAY ||
+ return rt->fib6_nh.fib_nh_gw_family ||
mlxsw_sp_nexthop6_ipip_type(mlxsw_sp, rt, NULL);
}
@@ -6035,6 +6050,10 @@ static int mlxsw_sp_router_fib_rule_event(unsigned long event,
fr_info = container_of(info, struct fib_rule_notifier_info, info);
rule = fr_info->rule;
+ /* Rule only affects locally generated traffic */
+ if (rule->iifindex == info->net->loopback_dev->ifindex)
+ return 0;
+
switch (info->family) {
case AF_INET:
if (!fib4_rule_default(rule) && !rule->l3mdev)
@@ -6086,10 +6105,20 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb,
return notifier_from_errno(err);
break;
case FIB_EVENT_ENTRY_ADD:
+ case FIB_EVENT_ENTRY_REPLACE: /* fall through */
+ case FIB_EVENT_ENTRY_APPEND: /* fall through */
if (router->aborted) {
NL_SET_ERR_MSG_MOD(info->extack, "FIB offload was aborted. Not configuring route");
return notifier_from_errno(-EINVAL);
}
+ if (info->family == AF_INET) {
+ struct fib_entry_notifier_info *fen_info = ptr;
+
+ if (fen_info->fi->fib_nh_is_v6) {
+ NL_SET_ERR_MSG_MOD(info->extack, "IPv6 gateway with IPv4 route is not supported");
+ return notifier_from_errno(-EINVAL);
+ }
+ }
break;
}
@@ -7808,7 +7837,7 @@ static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp)
char recr2_pl[MLXSW_REG_RECR2_LEN];
u32 seed;
- get_random_bytes(&seed, sizeof(seed));
+ seed = jhash(mlxsw_sp->base_mac, sizeof(mlxsw_sp->base_mac), 0);
mlxsw_reg_recr2_pack(recr2_pl, seed);
mlxsw_sp_mp4_hash_init(recr2_pl);
mlxsw_sp_mp6_hash_init(recr2_pl);