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From: Stanislav Fomichev <sdf@google.com>
To: bpf@vger.kernel.org
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
	martin.lau@linux.dev, song@kernel.org, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
	haoluo@google.com, jolsa@kernel.org,
	David Ahern <dsahern@gmail.com>,
	Willem de Bruijn <willemb@google.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	Anatoly Burakov <anatoly.burakov@intel.com>,
	Alexander Lobakin <alexandr.lobakin@intel.com>,
	Magnus Karlsson <magnus.karlsson@gmail.com>,
	Maryam Tahhan <mtahhan@redhat.com>,
	xdp-hints@xdp-project.net, netdev@vger.kernel.org,
	Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH bpf-next v5 02/17] bpf: Rename bpf_{prog,map}_is_dev_bound to is_offloaded
Date: Tue, 20 Dec 2022 14:20:28 -0800	[thread overview]
Message-ID: <20221220222043.3348718-3-sdf@google.com> (raw)
In-Reply-To: <20221220222043.3348718-1-sdf@google.com>

BPF offloading infra will be reused to implement
bound-but-not-offloaded bpf programs. Rename existing
helpers for clarity. No functional changes.

Cc: John Fastabend <john.fastabend@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Anatoly Burakov <anatoly.burakov@intel.com>
Cc: Alexander Lobakin <alexandr.lobakin@intel.com>
Cc: Magnus Karlsson <magnus.karlsson@gmail.com>
Cc: Maryam Tahhan <mtahhan@redhat.com>
Cc: xdp-hints@xdp-project.net
Cc: netdev@vger.kernel.org
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
---
 include/linux/bpf.h   |  8 ++++----
 kernel/bpf/core.c     |  4 ++--
 kernel/bpf/offload.c  |  4 ++--
 kernel/bpf/syscall.c  | 22 +++++++++++-----------
 kernel/bpf/verifier.c | 18 +++++++++---------
 net/core/dev.c        |  4 ++--
 net/core/filter.c     |  2 +-
 7 files changed, 31 insertions(+), 31 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 5fec2d1be6d7..630f259d0447 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -2481,12 +2481,12 @@ void unpriv_ebpf_notify(int new_state);
 #if defined(CONFIG_NET) && defined(CONFIG_BPF_SYSCALL)
 int bpf_prog_offload_init(struct bpf_prog *prog, union bpf_attr *attr);
 
-static inline bool bpf_prog_is_dev_bound(const struct bpf_prog_aux *aux)
+static inline bool bpf_prog_is_offloaded(const struct bpf_prog_aux *aux)
 {
 	return aux->offload_requested;
 }
 
-static inline bool bpf_map_is_dev_bound(struct bpf_map *map)
+static inline bool bpf_map_is_offloaded(struct bpf_map *map)
 {
 	return unlikely(map->ops == &bpf_map_offload_ops);
 }
@@ -2513,12 +2513,12 @@ static inline int bpf_prog_offload_init(struct bpf_prog *prog,
 	return -EOPNOTSUPP;
 }
 
-static inline bool bpf_prog_is_dev_bound(struct bpf_prog_aux *aux)
+static inline bool bpf_prog_is_offloaded(struct bpf_prog_aux *aux)
 {
 	return false;
 }
 
-static inline bool bpf_map_is_dev_bound(struct bpf_map *map)
+static inline bool bpf_map_is_offloaded(struct bpf_map *map)
 {
 	return false;
 }
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 7f98dec6e90f..e9d64e26ef5b 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -2183,7 +2183,7 @@ struct bpf_prog *bpf_prog_select_runtime(struct bpf_prog *fp, int *err)
 	 * valid program, which in this case would simply not
 	 * be JITed, but falls back to the interpreter.
 	 */
-	if (!bpf_prog_is_dev_bound(fp->aux)) {
+	if (!bpf_prog_is_offloaded(fp->aux)) {
 		*err = bpf_prog_alloc_jited_linfo(fp);
 		if (*err)
 			return fp;
@@ -2554,7 +2554,7 @@ static void bpf_prog_free_deferred(struct work_struct *work)
 #endif
 	bpf_free_used_maps(aux);
 	bpf_free_used_btfs(aux);
-	if (bpf_prog_is_dev_bound(aux))
+	if (bpf_prog_is_offloaded(aux))
 		bpf_prog_offload_destroy(aux->prog);
 #ifdef CONFIG_PERF_EVENTS
 	if (aux->prog->has_callchain_buf)
diff --git a/kernel/bpf/offload.c b/kernel/bpf/offload.c
index 13e4efc971e6..f5769a8ecbee 100644
--- a/kernel/bpf/offload.c
+++ b/kernel/bpf/offload.c
@@ -549,7 +549,7 @@ static bool __bpf_offload_dev_match(struct bpf_prog *prog,
 	struct bpf_offload_netdev *ondev1, *ondev2;
 	struct bpf_prog_offload *offload;
 
-	if (!bpf_prog_is_dev_bound(prog->aux))
+	if (!bpf_prog_is_offloaded(prog->aux))
 		return false;
 
 	offload = prog->aux->offload;
@@ -581,7 +581,7 @@ bool bpf_offload_prog_map_match(struct bpf_prog *prog, struct bpf_map *map)
 	struct bpf_offloaded_map *offmap;
 	bool ret;
 
-	if (!bpf_map_is_dev_bound(map))
+	if (!bpf_map_is_offloaded(map))
 		return bpf_map_offload_neutral(map);
 	offmap = map_to_offmap(map);
 
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 35972afb6850..13bc96035116 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -181,7 +181,7 @@ static int bpf_map_update_value(struct bpf_map *map, struct file *map_file,
 	int err;
 
 	/* Need to create a kthread, thus must support schedule */
-	if (bpf_map_is_dev_bound(map)) {
+	if (bpf_map_is_offloaded(map)) {
 		return bpf_map_offload_update_elem(map, key, value, flags);
 	} else if (map->map_type == BPF_MAP_TYPE_CPUMAP ||
 		   map->map_type == BPF_MAP_TYPE_STRUCT_OPS) {
@@ -238,7 +238,7 @@ static int bpf_map_copy_value(struct bpf_map *map, void *key, void *value,
 	void *ptr;
 	int err;
 
-	if (bpf_map_is_dev_bound(map))
+	if (bpf_map_is_offloaded(map))
 		return bpf_map_offload_lookup_elem(map, key, value);
 
 	bpf_disable_instrumentation();
@@ -1483,7 +1483,7 @@ static int map_delete_elem(union bpf_attr *attr, bpfptr_t uattr)
 		goto err_put;
 	}
 
-	if (bpf_map_is_dev_bound(map)) {
+	if (bpf_map_is_offloaded(map)) {
 		err = bpf_map_offload_delete_elem(map, key);
 		goto out;
 	} else if (IS_FD_PROG_ARRAY(map) ||
@@ -1547,7 +1547,7 @@ static int map_get_next_key(union bpf_attr *attr)
 	if (!next_key)
 		goto free_key;
 
-	if (bpf_map_is_dev_bound(map)) {
+	if (bpf_map_is_offloaded(map)) {
 		err = bpf_map_offload_get_next_key(map, key, next_key);
 		goto out;
 	}
@@ -1605,7 +1605,7 @@ int generic_map_delete_batch(struct bpf_map *map,
 				   map->key_size))
 			break;
 
-		if (bpf_map_is_dev_bound(map)) {
+		if (bpf_map_is_offloaded(map)) {
 			err = bpf_map_offload_delete_elem(map, key);
 			break;
 		}
@@ -1851,7 +1851,7 @@ static int map_lookup_and_delete_elem(union bpf_attr *attr)
 		   map->map_type == BPF_MAP_TYPE_PERCPU_HASH ||
 		   map->map_type == BPF_MAP_TYPE_LRU_HASH ||
 		   map->map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH) {
-		if (!bpf_map_is_dev_bound(map)) {
+		if (!bpf_map_is_offloaded(map)) {
 			bpf_disable_instrumentation();
 			rcu_read_lock();
 			err = map->ops->map_lookup_and_delete_elem(map, key, value, attr->flags);
@@ -1944,7 +1944,7 @@ static int find_prog_type(enum bpf_prog_type type, struct bpf_prog *prog)
 	if (!ops)
 		return -EINVAL;
 
-	if (!bpf_prog_is_dev_bound(prog->aux))
+	if (!bpf_prog_is_offloaded(prog->aux))
 		prog->aux->ops = ops;
 	else
 		prog->aux->ops = &bpf_offload_prog_ops;
@@ -2255,7 +2255,7 @@ bool bpf_prog_get_ok(struct bpf_prog *prog,
 
 	if (prog->type != *attach_type)
 		return false;
-	if (bpf_prog_is_dev_bound(prog->aux) && !attach_drv)
+	if (bpf_prog_is_offloaded(prog->aux) && !attach_drv)
 		return false;
 
 	return true;
@@ -2598,7 +2598,7 @@ static int bpf_prog_load(union bpf_attr *attr, bpfptr_t uattr)
 	atomic64_set(&prog->aux->refcnt, 1);
 	prog->gpl_compatible = is_gpl ? 1 : 0;
 
-	if (bpf_prog_is_dev_bound(prog->aux)) {
+	if (bpf_prog_is_offloaded(prog->aux)) {
 		err = bpf_prog_offload_init(prog, attr);
 		if (err)
 			goto free_prog_sec;
@@ -3997,7 +3997,7 @@ static int bpf_prog_get_info_by_fd(struct file *file,
 			return -EFAULT;
 	}
 
-	if (bpf_prog_is_dev_bound(prog->aux)) {
+	if (bpf_prog_is_offloaded(prog->aux)) {
 		err = bpf_prog_offload_info_fill(&info, prog);
 		if (err)
 			return err;
@@ -4225,7 +4225,7 @@ static int bpf_map_get_info_by_fd(struct file *file,
 	}
 	info.btf_vmlinux_value_type_id = map->btf_vmlinux_value_type_id;
 
-	if (bpf_map_is_dev_bound(map)) {
+	if (bpf_map_is_offloaded(map)) {
 		err = bpf_map_offload_info_fill(&info, map);
 		if (err)
 			return err;
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index faa358b3d5d7..fdfdcab4a59d 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -13807,7 +13807,7 @@ static int do_check(struct bpf_verifier_env *env)
 			env->prev_log_len = env->log.len_used;
 		}
 
-		if (bpf_prog_is_dev_bound(env->prog->aux)) {
+		if (bpf_prog_is_offloaded(env->prog->aux)) {
 			err = bpf_prog_offload_verify_insn(env, env->insn_idx,
 							   env->prev_insn_idx);
 			if (err)
@@ -14287,7 +14287,7 @@ static int check_map_prog_compatibility(struct bpf_verifier_env *env,
 		}
 	}
 
-	if ((bpf_prog_is_dev_bound(prog->aux) || bpf_map_is_dev_bound(map)) &&
+	if ((bpf_prog_is_offloaded(prog->aux) || bpf_map_is_offloaded(map)) &&
 	    !bpf_offload_prog_map_match(prog, map)) {
 		verbose(env, "offload device mismatch between prog and map\n");
 		return -EINVAL;
@@ -14768,7 +14768,7 @@ static int verifier_remove_insns(struct bpf_verifier_env *env, u32 off, u32 cnt)
 	unsigned int orig_prog_len = env->prog->len;
 	int err;
 
-	if (bpf_prog_is_dev_bound(env->prog->aux))
+	if (bpf_prog_is_offloaded(env->prog->aux))
 		bpf_prog_offload_remove_insns(env, off, cnt);
 
 	err = bpf_remove_insns(env->prog, off, cnt);
@@ -14849,7 +14849,7 @@ static void opt_hard_wire_dead_code_branches(struct bpf_verifier_env *env)
 		else
 			continue;
 
-		if (bpf_prog_is_dev_bound(env->prog->aux))
+		if (bpf_prog_is_offloaded(env->prog->aux))
 			bpf_prog_offload_replace_insn(env, i, &ja);
 
 		memcpy(insn, &ja, sizeof(ja));
@@ -15036,7 +15036,7 @@ static int convert_ctx_accesses(struct bpf_verifier_env *env)
 		}
 	}
 
-	if (bpf_prog_is_dev_bound(env->prog->aux))
+	if (bpf_prog_is_offloaded(env->prog->aux))
 		return 0;
 
 	insn = env->prog->insnsi + delta;
@@ -15436,7 +15436,7 @@ static int fixup_call_args(struct bpf_verifier_env *env)
 	int err = 0;
 
 	if (env->prog->jit_requested &&
-	    !bpf_prog_is_dev_bound(env->prog->aux)) {
+	    !bpf_prog_is_offloaded(env->prog->aux)) {
 		err = jit_subprogs(env);
 		if (err == 0)
 			return 0;
@@ -16923,7 +16923,7 @@ int bpf_check(struct bpf_prog **prog, union bpf_attr *attr, bpfptr_t uattr)
 	if (ret < 0)
 		goto skip_full_check;
 
-	if (bpf_prog_is_dev_bound(env->prog->aux)) {
+	if (bpf_prog_is_offloaded(env->prog->aux)) {
 		ret = bpf_prog_offload_verifier_prep(env->prog);
 		if (ret)
 			goto skip_full_check;
@@ -16936,7 +16936,7 @@ int bpf_check(struct bpf_prog **prog, union bpf_attr *attr, bpfptr_t uattr)
 	ret = do_check_subprogs(env);
 	ret = ret ?: do_check_main(env);
 
-	if (ret == 0 && bpf_prog_is_dev_bound(env->prog->aux))
+	if (ret == 0 && bpf_prog_is_offloaded(env->prog->aux))
 		ret = bpf_prog_offload_finalize(env);
 
 skip_full_check:
@@ -16971,7 +16971,7 @@ int bpf_check(struct bpf_prog **prog, union bpf_attr *attr, bpfptr_t uattr)
 	/* do 32-bit optimization after insn patching has done so those patched
 	 * insns could be handled correctly.
 	 */
-	if (ret == 0 && !bpf_prog_is_dev_bound(env->prog->aux)) {
+	if (ret == 0 && !bpf_prog_is_offloaded(env->prog->aux)) {
 		ret = opt_subreg_zext_lo32_rnd_hi32(env, attr);
 		env->prog->aux->verifier_zext = bpf_jit_needs_zext() ? !ret
 								     : false;
diff --git a/net/core/dev.c b/net/core/dev.c
index b76fb37b381e..7d31c57ddd7e 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -9224,8 +9224,8 @@ static int dev_xdp_attach(struct net_device *dev, struct netlink_ext_ack *extack
 			NL_SET_ERR_MSG(extack, "Native and generic XDP can't be active at the same time");
 			return -EEXIST;
 		}
-		if (!offload && bpf_prog_is_dev_bound(new_prog->aux)) {
-			NL_SET_ERR_MSG(extack, "Using device-bound program without HW_MODE flag is not supported");
+		if (!offload && bpf_prog_is_offloaded(new_prog->aux)) {
+			NL_SET_ERR_MSG(extack, "Using offloaded program without HW_MODE flag is not supported");
 			return -EINVAL;
 		}
 		if (new_prog->expected_attach_type == BPF_XDP_DEVMAP) {
diff --git a/net/core/filter.c b/net/core/filter.c
index c746e4d77214..6579ddd20325 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -8731,7 +8731,7 @@ static bool xdp_is_valid_access(int off, int size,
 	}
 
 	if (type == BPF_WRITE) {
-		if (bpf_prog_is_dev_bound(prog->aux)) {
+		if (bpf_prog_is_offloaded(prog->aux)) {
 			switch (off) {
 			case offsetof(struct xdp_md, rx_queue_index):
 				return __is_valid_xdp_access(off, size);
-- 
2.39.0.314.g84b9a713c41-goog


  parent reply	other threads:[~2022-12-20 22:21 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-20 22:20 [PATCH bpf-next v5 00/17] xdp: hints via kfuncs Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 01/17] bpf: Document XDP RX metadata Stanislav Fomichev
2022-12-28 17:25   ` David Vernet
2023-01-03 22:23     ` Stanislav Fomichev
2023-01-04 16:02       ` David Vernet
2022-12-20 22:20 ` Stanislav Fomichev [this message]
2022-12-20 22:20 ` [PATCH bpf-next v5 03/17] bpf: Move offload initialization into late_initcall Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 04/17] bpf: Reshuffle some parts of bpf/offload.c Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 05/17] bpf: Introduce device-bound XDP programs Stanislav Fomichev
2022-12-23  0:19   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 06/17] selftests/bpf: Update expected test_offload.py messages Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 07/17] bpf: XDP metadata RX kfuncs Stanislav Fomichev
2022-12-21  5:43   ` kernel test robot
2022-12-21 17:49     ` Stanislav Fomichev
2022-12-23  0:31   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2022-12-27 20:33   ` David Vernet
2023-01-03 22:23     ` Stanislav Fomichev
2023-01-03 22:35       ` David Vernet
2022-12-20 22:20 ` [PATCH bpf-next v5 08/17] bpf: Support consuming XDP HW metadata from fext programs Stanislav Fomichev
2022-12-23  0:37   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2023-01-04  1:51       ` Martin KaFai Lau
2023-01-04  3:59         ` Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 09/17] veth: Introduce veth_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 10/17] veth: Support RX XDP metadata Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 11/17] selftests/bpf: Verify xdp_metadata xdp->af_xdp path Stanislav Fomichev
2022-12-23  0:40   ` Martin KaFai Lau
2022-12-23  4:06     ` Stanislav Fomichev
2023-01-04  2:05       ` Martin KaFai Lau
2022-12-20 22:20 ` [PATCH bpf-next v5 12/17] net/mlx4_en: Introduce wrapper for xdp_buff Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 13/17] net/mlx4_en: Support RX XDP metadata Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 14/17] xsk: Add cb area to struct xdp_buff_xsk Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 15/17] net/mlx5e: Introduce wrapper for xdp_buff Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 16/17] net/mlx5e: Support RX XDP metadata Stanislav Fomichev
2022-12-20 22:20 ` [PATCH bpf-next v5 17/17] selftests/bpf: Simple program to dump XDP RX metadata Stanislav Fomichev
2022-12-23  0:53   ` Martin KaFai Lau
2022-12-23  4:07     ` Stanislav Fomichev

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