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Commit 7a0ef693 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by Daniel Borkmann
Browse files

bpf: offload: allow array map offload 



The special handling of different map types is left to the driver.
Allow offload of array maps by simply adding it to accepted types.
For nfp we have to make sure array elements are not deleted.

Signed-off-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent 32852649

drivers/net/ethernet/netronome/nfp/bpf/offload.c

+2 −0
Original line number Diff line number Diff line
@@ -176,6 +176,8 @@ nfp_bpf_map_get_next_key(struct bpf_offloaded_map *offmap, 
static int

nfp_bpf_map_delete_elem(struct bpf_offloaded_map *offmap, void *key)

{

	if (offmap->map.map_type == BPF_MAP_TYPE_ARRAY)

		return -EINVAL;

	return nfp_bpf_ctrl_del_entry(offmap, key);

}

kernel/bpf/offload.c

+2 −1
Original line number Diff line number Diff line
@@ -299,7 +299,8 @@ struct bpf_map *bpf_map_offload_map_alloc(union bpf_attr *attr) 


	if (!capable(CAP_SYS_ADMIN))

		return ERR_PTR(-EPERM);

	if (attr->map_type != BPF_MAP_TYPE_HASH)

	if (attr->map_type != BPF_MAP_TYPE_ARRAY &&

	    attr->map_type != BPF_MAP_TYPE_HASH)

		return ERR_PTR(-EINVAL);



	offmap = kzalloc(sizeof(*offmap), GFP_USER);