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nfp: bpf: add map data structure

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To be able to split code into reasonable chunks we need to add
the map data structures already.  Later patches will add code
piece by piece.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-01-11 20:29:10 -08:00 committed by Daniel Borkmann
parent a38845729e
commit 4da98eea79
2 changed files with 24 additions and 1 deletions
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7
drivers/net/ethernet/netronome/nfp/bpf/main.c
View File

@ -313,6 +313,8 @@ static int nfp_bpf_init(struct nfp_app *app)
bpf->app = app;
app->priv = bpf;
INIT_LIST_HEAD(&bpf->map_list);
err = nfp_bpf_parse_capabilities(app);
if (err)
goto err_free_bpf;
@ -326,7 +328,10 @@ err_free_bpf:
static void nfp_bpf_clean(struct nfp_app *app)
{
kfree(app->priv);
struct nfp_app_bpf *bpf = app->priv;
WARN_ON(!list_empty(&bpf->map_list));
kfree(bpf);
}
const struct nfp_app_type app_bpf = {

18
drivers/net/ethernet/netronome/nfp/bpf/main.h
View File

@ -93,6 +93,8 @@ enum pkt_vec {
* struct nfp_app_bpf - bpf app priv structure
* @app: backpointer to the app
*
* @map_list: list of offloaded maps
*
* @adjust_head: adjust head capability
* @flags: extra flags for adjust head
* @off_min: minimal packet offset within buffer required
@ -103,6 +105,8 @@ enum pkt_vec {
struct nfp_app_bpf {
struct nfp_app *app;
struct list_head map_list;
struct nfp_bpf_cap_adjust_head {
u32 flags;
int off_min;
@ -112,6 +116,20 @@ struct nfp_app_bpf {
} adjust_head;
};
/**
* struct nfp_bpf_map - private per-map data attached to BPF maps for offload
* @offmap: pointer to the offloaded BPF map
* @bpf: back pointer to bpf app private structure
* @tid: table id identifying map on datapath
* @l: link on the nfp_app_bpf->map_list list
*/
struct nfp_bpf_map {
struct bpf_offloaded_map *offmap;
struct nfp_app_bpf *bpf;
u32 tid;
struct list_head l;
};
struct nfp_prog;
struct nfp_insn_meta;
typedef int (*instr_cb_t)(struct nfp_prog *, struct nfp_insn_meta *);