4 files changed, 17 insertions, 0 deletions

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
index c63368fc28f6..d8df56087961 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
@@ -2329,6 +2329,7 @@ static int call(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta)
 		return adjust_head(nfp_prog, meta);
 	case BPF_FUNC_map_lookup_elem:
 	case BPF_FUNC_map_update_elem:
+	case BPF_FUNC_map_delete_elem:
 		return map_call_stack_common(nfp_prog, meta);
 	default:
 		WARN_ONCE(1, "verifier allowed unsupported function\n");
@@ -3216,6 +3217,9 @@ void *nfp_bpf_relo_for_vnic(struct nfp_prog *nfp_prog, struct nfp_bpf_vnic *bv)
 			case BPF_FUNC_map_update_elem:
 				val = nfp_prog->bpf->helpers.map_update;
 				break;
+			case BPF_FUNC_map_delete_elem:
+				val = nfp_prog->bpf->helpers.map_delete;
+				break;
 			default:
 				pr_err("relocation of unknown helper %d\n",
 				       val);
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c
index db6940551b32..a7e217c5204f 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -287,6 +287,9 @@ nfp_bpf_parse_cap_func(struct nfp_app_bpf *bpf, void __iomem *value, u32 length)
 	case BPF_FUNC_map_update_elem:
 		bpf->helpers.map_update = readl(&cap->func_addr);
 		break;
+	case BPF_FUNC_map_delete_elem:
+		bpf->helpers.map_delete = readl(&cap->func_addr);
+		break;
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.h b/drivers/net/ethernet/netronome/nfp/bpf/main.h
index 0246bd88bff3..26bb491224b3 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.h
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.h
@@ -129,6 +129,7 @@ enum pkt_vec {
  * @helpers:		helper addressess for various calls
  * @helpers.map_lookup:		map lookup helper address
  * @helpers.map_update:		map update helper address
+ * @helpers.map_delete:		map delete helper address
  */
 struct nfp_app_bpf {
 	struct nfp_app *app;
@@ -164,6 +165,7 @@ struct nfp_app_bpf {
 	struct {
 		u32 map_lookup;
 		u32 map_update;
+		u32 map_delete;
 	} helpers;
 };
 
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/verifier.c b/drivers/net/ethernet/netronome/nfp/bpf/verifier.c
index 482a0ce6e755..7d67ffc897dd 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/verifier.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/verifier.c
@@ -201,6 +201,14 @@ nfp_bpf_check_call(struct nfp_prog *nfp_prog, struct bpf_verifier_env *env,
 		    !nfp_bpf_stack_arg_ok("map_update", env, reg3, NULL))
 			return -EOPNOTSUPP;
 		break;
+
+	case BPF_FUNC_map_delete_elem:
+		if (!nfp_bpf_map_call_ok("map_delete", env, meta,
+					 bpf->helpers.map_delete, reg1) ||
+		    !nfp_bpf_stack_arg_ok("map_delete", env, reg2,
+					  meta->func_id ? &meta->arg2 : NULL))
+			return -EOPNOTSUPP;
+		break;
 	default:
 		pr_vlog(env, "unsupported function id: %d\n", func_id);
 		return -EOPNOTSUPP;