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mlxsw: spectrum_router: Create IPv6 multipath routes in one go

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Allow the driver to create an IPv6 multipath route in one go by passing
an array of sibling routes and iterating over them.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2019-06-18 18:12:56 +03:00 committed by David S. Miller
parent d21afd3029
commit 2d9dd7ec79
1 changed files with 23 additions and 13 deletions
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36
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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@ -5373,29 +5373,32 @@ mlxsw_sp_fib6_entry_rt_destroy_all(struct mlxsw_sp_fib6_entry *fib6_entry)
static struct mlxsw_sp_fib6_entry *
mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_node *fib_node,
struct fib6_info *rt)
struct fib6_info **rt_arr, unsigned int nrt6)
{
struct mlxsw_sp_fib6_entry *fib6_entry;
struct mlxsw_sp_fib_entry *fib_entry;
struct mlxsw_sp_rt6 *mlxsw_sp_rt6;
int err;
int err, i;
fib6_entry = kzalloc(sizeof(*fib6_entry), GFP_KERNEL);
if (!fib6_entry)
return ERR_PTR(-ENOMEM);
fib_entry = &fib6_entry->common;
mlxsw_sp_rt6 = mlxsw_sp_rt6_create(rt);
if (IS_ERR(mlxsw_sp_rt6)) {
err = PTR_ERR(mlxsw_sp_rt6);
goto err_rt6_create;
INIT_LIST_HEAD(&fib6_entry->rt6_list);
for (i = 0; i < nrt6; i++) {
mlxsw_sp_rt6 = mlxsw_sp_rt6_create(rt_arr[i]);
if (IS_ERR(mlxsw_sp_rt6)) {
err = PTR_ERR(mlxsw_sp_rt6);
goto err_rt6_create;
}
list_add_tail(&mlxsw_sp_rt6->list, &fib6_entry->rt6_list);
fib6_entry->nrt6++;
}
mlxsw_sp_fib6_entry_type_set(mlxsw_sp, fib_entry, mlxsw_sp_rt6->rt);
mlxsw_sp_fib6_entry_type_set(mlxsw_sp, fib_entry, rt_arr[0]);
INIT_LIST_HEAD(&fib6_entry->rt6_list);
list_add_tail(&mlxsw_sp_rt6->list, &fib6_entry->rt6_list);
fib6_entry->nrt6 = 1;
err = mlxsw_sp_nexthop6_group_get(mlxsw_sp, fib6_entry);
if (err)
goto err_nexthop6_group_get;
@ -5405,9 +5408,15 @@ mlxsw_sp_fib6_entry_create(struct mlxsw_sp *mlxsw_sp,
return fib6_entry;
err_nexthop6_group_get:
list_del(&mlxsw_sp_rt6->list);
mlxsw_sp_rt6_destroy(mlxsw_sp_rt6);
i = nrt6;
err_rt6_create:
for (i--; i >= 0; i--) {
fib6_entry->nrt6--;
mlxsw_sp_rt6 = list_last_entry(&fib6_entry->rt6_list,
struct mlxsw_sp_rt6, list);
list_del(&mlxsw_sp_rt6->list);
mlxsw_sp_rt6_destroy(mlxsw_sp_rt6);
}
kfree(fib6_entry);
return ERR_PTR(err);
}
@ -5608,7 +5617,8 @@ static int mlxsw_sp_router_fib6_add(struct mlxsw_sp *mlxsw_sp,
return 0;
}
fib6_entry = mlxsw_sp_fib6_entry_create(mlxsw_sp, fib_node, rt);
fib6_entry = mlxsw_sp_fib6_entry_create(mlxsw_sp, fib_node, rt_arr,
nrt6);
if (IS_ERR(fib6_entry)) {
err = PTR_ERR(fib6_entry);
goto err_fib6_entry_create;