diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 100 |
1 files changed, 80 insertions, 20 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index f53513580c2a..acabb35cda4a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -130,6 +130,7 @@ struct mlxsw_sp_fib_entry { struct mlxsw_sp_vr *vr; struct list_head nexthop_group_node; struct mlxsw_sp_nexthop_group *nh_group; + bool offloaded; }; struct mlxsw_sp_fib { @@ -1613,6 +1614,72 @@ static void mlxsw_sp_nexthop_group_put(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_nexthop_group_destroy(mlxsw_sp, nh_grp); } +static bool +mlxsw_sp_fib_entry_should_offload(const struct mlxsw_sp_fib_entry *fib_entry) +{ + struct mlxsw_sp_nexthop_group *nh_group = fib_entry->nh_group; + + switch (fib_entry->type) { + case MLXSW_SP_FIB_ENTRY_TYPE_REMOTE: + return !!nh_group->adj_index_valid; + case MLXSW_SP_FIB_ENTRY_TYPE_LOCAL: + return true; + default: + return false; + } +} + +static void mlxsw_sp_fib_entry_offload_set(struct mlxsw_sp_fib_entry *fib_entry) +{ + fib_entry->offloaded = true; + + switch (fib_entry->vr->proto) { + case MLXSW_SP_L3_PROTO_IPV4: + fib_info_offload_inc(fib_entry->nh_group->key.fi); + break; + case MLXSW_SP_L3_PROTO_IPV6: + WARN_ON_ONCE(1); + } +} + +static void +mlxsw_sp_fib_entry_offload_unset(struct mlxsw_sp_fib_entry *fib_entry) +{ + switch (fib_entry->vr->proto) { + case MLXSW_SP_L3_PROTO_IPV4: + fib_info_offload_dec(fib_entry->nh_group->key.fi); + break; + case MLXSW_SP_L3_PROTO_IPV6: + WARN_ON_ONCE(1); + } + + fib_entry->offloaded = false; +} + +static void +mlxsw_sp_fib_entry_offload_refresh(struct mlxsw_sp_fib_entry *fib_entry, + enum mlxsw_reg_ralue_op op, int err) +{ + switch (op) { + case MLXSW_REG_RALUE_OP_WRITE_DELETE: + if (!fib_entry->offloaded) + return; + return mlxsw_sp_fib_entry_offload_unset(fib_entry); + case MLXSW_REG_RALUE_OP_WRITE_WRITE: + if (err) + return; + if (mlxsw_sp_fib_entry_should_offload(fib_entry) && + !fib_entry->offloaded) + mlxsw_sp_fib_entry_offload_set(fib_entry); + else if (!mlxsw_sp_fib_entry_should_offload(fib_entry) && + fib_entry->offloaded) + mlxsw_sp_fib_entry_offload_unset(fib_entry); + return; + default: + return; + } +} + static int mlxsw_sp_fib_entry_op4_remote(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib_entry *fib_entry, enum mlxsw_reg_ralue_op op) @@ -1698,13 +1765,17 @@ static int mlxsw_sp_fib_entry_op(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib_entry *fib_entry, enum mlxsw_reg_ralue_op op) { + int err = -EINVAL; + switch (fib_entry->vr->proto) { case MLXSW_SP_L3_PROTO_IPV4: - return mlxsw_sp_fib_entry_op4(mlxsw_sp, fib_entry, op); + err = mlxsw_sp_fib_entry_op4(mlxsw_sp, fib_entry, op); + break; case MLXSW_SP_L3_PROTO_IPV6: - return -EINVAL; + return err; } - return -EINVAL; + mlxsw_sp_fib_entry_offload_refresh(fib_entry, op, err); + return err; } static int mlxsw_sp_fib_entry_update(struct mlxsw_sp *mlxsw_sp, @@ -1722,9 +1793,9 @@ static int mlxsw_sp_fib_entry_del(struct mlxsw_sp *mlxsw_sp, } static int -mlxsw_sp_router_fib4_entry_init(struct mlxsw_sp *mlxsw_sp, - const struct fib_entry_notifier_info *fen_info, - struct mlxsw_sp_fib_entry *fib_entry) +mlxsw_sp_fib4_entry_type_set(struct mlxsw_sp *mlxsw_sp, + const struct fib_entry_notifier_info *fen_info, + struct mlxsw_sp_fib_entry *fib_entry) { struct fib_info *fi = fen_info->fi; struct mlxsw_sp_rif *r = NULL; @@ -1763,18 +1834,9 @@ mlxsw_sp_router_fib4_entry_init(struct mlxsw_sp *mlxsw_sp, fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; else fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_REMOTE; - fib_info_offload_inc(fen_info->fi); return 0; } -static void -mlxsw_sp_router_fib4_entry_fini(struct mlxsw_sp *mlxsw_sp, - struct mlxsw_sp_fib_entry *fib_entry) -{ - if (fib_entry->type != MLXSW_SP_FIB_ENTRY_TYPE_TRAP) - fib_info_offload_dec(fib_entry->nh_group->key.fi); -} - static struct mlxsw_sp_fib_entry * mlxsw_sp_fib_entry_get(struct mlxsw_sp *mlxsw_sp, const struct fib_entry_notifier_info *fen_info) @@ -1807,9 +1869,9 @@ mlxsw_sp_fib_entry_get(struct mlxsw_sp *mlxsw_sp, fib_entry->vr = vr; fib_entry->ref_count = 1; - err = mlxsw_sp_router_fib4_entry_init(mlxsw_sp, fen_info, fib_entry); + err = mlxsw_sp_fib4_entry_type_set(mlxsw_sp, fen_info, fib_entry); if (err) - goto err_fib4_entry_init; + goto err_fib4_entry_type_set; err = mlxsw_sp_nexthop_group_get(mlxsw_sp, fib_entry, fi); if (err) @@ -1818,8 +1880,7 @@ mlxsw_sp_fib_entry_get(struct mlxsw_sp *mlxsw_sp, return fib_entry; err_nexthop_group_get: - mlxsw_sp_router_fib4_entry_fini(mlxsw_sp, fib_entry); -err_fib4_entry_init: +err_fib4_entry_type_set: mlxsw_sp_fib_entry_destroy(fib_entry); err_fib_entry_create: mlxsw_sp_vr_put(mlxsw_sp, vr); @@ -1851,7 +1912,6 @@ static void mlxsw_sp_fib_entry_put(struct mlxsw_sp *mlxsw_sp, if (--fib_entry->ref_count == 0) { mlxsw_sp_nexthop_group_put(mlxsw_sp, fib_entry); - mlxsw_sp_router_fib4_entry_fini(mlxsw_sp, fib_entry); mlxsw_sp_fib_entry_destroy(fib_entry); } mlxsw_sp_vr_put(mlxsw_sp, vr); |