diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index d5094b81adbf..fe99d245dd91 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -47,6 +47,7 @@ #include <linux/socket.h> #include <linux/route.h> #include <linux/gcd.h> +#include <linux/random.h> #include <net/netevent.h> #include <net/neighbour.h> #include <net/arp.h> @@ -6644,6 +6645,64 @@ static void mlxsw_sp_router_fib_dump_flush(struct notifier_block *nb) mlxsw_sp_router_fib_flush(router->mlxsw_sp); } +#ifdef CONFIG_IP_ROUTE_MULTIPATH +static void mlxsw_sp_mp_hash_header_set(char *recr2_pl, int header) +{ + mlxsw_reg_recr2_outer_header_enables_set(recr2_pl, header, true); +} + +static void mlxsw_sp_mp_hash_field_set(char *recr2_pl, int field) +{ + mlxsw_reg_recr2_outer_header_fields_enable_set(recr2_pl, field, true); +} + +static void mlxsw_sp_mp4_hash_init(char *recr2_pl) +{ + bool only_l3 = !init_net.ipv4.sysctl_fib_multipath_hash_policy; + + mlxsw_sp_mp_hash_header_set(recr2_pl, + MLXSW_REG_RECR2_IPV4_EN_NOT_TCP_NOT_UDP); + mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV4_EN_TCP_UDP); + mlxsw_reg_recr2_ipv4_sip_enable(recr2_pl); + mlxsw_reg_recr2_ipv4_dip_enable(recr2_pl); + if (only_l3) + return; + mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_EN_IPV4); + mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV4_PROTOCOL); + mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_SPORT); + mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_TCP_UDP_DPORT); +} + +static void mlxsw_sp_mp6_hash_init(char *recr2_pl) +{ + mlxsw_sp_mp_hash_header_set(recr2_pl, + MLXSW_REG_RECR2_IPV6_EN_NOT_TCP_NOT_UDP); + mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV6_EN_TCP_UDP); + mlxsw_reg_recr2_ipv6_sip_enable(recr2_pl); + mlxsw_reg_recr2_ipv6_dip_enable(recr2_pl); + mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV6_FLOW_LABEL); + mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV6_NEXT_HEADER); +} + +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)); + mlxsw_reg_recr2_pack(recr2_pl, seed); + mlxsw_sp_mp4_hash_init(recr2_pl); + mlxsw_sp_mp6_hash_init(recr2_pl); + + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(recr2), recr2_pl); +} +#else +static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp) +{ + return 0; +} +#endif + static int __mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) { char rgcr_pl[MLXSW_REG_RGCR_LEN]; @@ -6727,6 +6786,10 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) if (err) goto err_register_netevent_notifier; + err = mlxsw_sp_mp_hash_init(mlxsw_sp); + if (err) + goto err_mp_hash_init; + mlxsw_sp->router->fib_nb.notifier_call = mlxsw_sp_router_fib_event; err = register_fib_notifier(&mlxsw_sp->router->fib_nb, mlxsw_sp_router_fib_dump_flush); @@ -6736,6 +6799,7 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp) return 0; err_register_fib_notifier: +err_mp_hash_init: unregister_netevent_notifier(&mlxsw_sp->router->netevent_nb); err_register_netevent_notifier: mlxsw_sp_neigh_fini(mlxsw_sp); |