diff options
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/offload.c | 11 | ||||
| -rw-r--r-- | drivers/net/netdevsim/bpf.c | 14 | ||||
| -rw-r--r-- | include/linux/bpf.h | 1 | ||||
| -rw-r--r-- | include/linux/netdevice.h | 3 | ||||
| -rw-r--r-- | kernel/bpf/offload.c | 14 |
5 files changed, 21 insertions, 22 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/offload.c b/drivers/net/ethernet/netronome/nfp/bpf/offload.c index 16a3a9c55852..8653a2189c19 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/offload.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c @@ -33,9 +33,6 @@ nfp_map_ptr_record(struct nfp_app_bpf *bpf, struct nfp_prog *nfp_prog, struct nfp_bpf_neutral_map *record; int err; - /* Map record paths are entered via ndo, update side is protected. */ - ASSERT_RTNL(); - /* Reuse path - other offloaded program is already tracking this map. */ record = rhashtable_lookup_fast(&bpf->maps_neutral, &map->id, nfp_bpf_maps_neutral_params); @@ -84,8 +81,6 @@ nfp_map_ptrs_forget(struct nfp_app_bpf *bpf, struct nfp_prog *nfp_prog) bool freed = false; int i; - ASSERT_RTNL(); - for (i = 0; i < nfp_prog->map_records_cnt; i++) { if (--nfp_prog->map_records[i]->count) { nfp_prog->map_records[i] = NULL; @@ -219,9 +214,10 @@ err_free: return ret; } -static int nfp_bpf_translate(struct nfp_net *nn, struct bpf_prog *prog) +static int nfp_bpf_translate(struct net_device *netdev, struct bpf_prog *prog) { struct nfp_prog *nfp_prog = prog->aux->offload->dev_priv; + struct nfp_net *nn = netdev_priv(netdev); unsigned int max_instr; int err; @@ -422,8 +418,6 @@ nfp_bpf_map_free(struct nfp_app_bpf *bpf, struct bpf_offloaded_map *offmap) int nfp_ndo_bpf(struct nfp_app *app, struct nfp_net *nn, struct netdev_bpf *bpf) { switch (bpf->command) { - case BPF_OFFLOAD_TRANSLATE: - return nfp_bpf_translate(nn, bpf->offload.prog); case BPF_OFFLOAD_DESTROY: return nfp_bpf_destroy(nn, bpf->offload.prog); case BPF_OFFLOAD_MAP_ALLOC: @@ -604,4 +598,5 @@ const struct bpf_prog_offload_ops nfp_bpf_dev_ops = { .insn_hook = nfp_verify_insn, .finalize = nfp_bpf_finalize, .prepare = nfp_bpf_verifier_prep, + .translate = nfp_bpf_translate, }; diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c index d045b7d666d9..30c2cd516d1c 100644 --- a/drivers/net/netdevsim/bpf.c +++ b/drivers/net/netdevsim/bpf.c @@ -269,6 +269,14 @@ nsim_bpf_verifier_prep(struct net_device *dev, struct bpf_verifier_env *env) return nsim_bpf_create_prog(ns, env->prog); } +static int nsim_bpf_translate(struct net_device *dev, struct bpf_prog *prog) +{ + struct nsim_bpf_bound_prog *state = prog->aux->offload->dev_priv; + + state->state = "xlated"; + return 0; +} + static void nsim_bpf_destroy_prog(struct bpf_prog *prog) { struct nsim_bpf_bound_prog *state; @@ -285,6 +293,7 @@ static const struct bpf_prog_offload_ops nsim_bpf_dev_ops = { .insn_hook = nsim_bpf_verify_insn, .finalize = nsim_bpf_finalize, .prepare = nsim_bpf_verifier_prep, + .translate = nsim_bpf_translate, }; static int nsim_setup_prog_checks(struct netdevsim *ns, struct netdev_bpf *bpf) @@ -551,11 +560,6 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf) ASSERT_RTNL(); switch (bpf->command) { - case BPF_OFFLOAD_TRANSLATE: - state = bpf->offload.prog->aux->offload->dev_priv; - - state->state = "xlated"; - return 0; case BPF_OFFLOAD_DESTROY: nsim_bpf_destroy_prog(bpf->offload.prog); return 0; diff --git a/include/linux/bpf.h b/include/linux/bpf.h index f250494a4f56..d1eb3c8a3fa9 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -269,6 +269,7 @@ struct bpf_prog_offload_ops { int insn_idx, int prev_insn_idx); int (*finalize)(struct bpf_verifier_env *env); int (*prepare)(struct net_device *netdev, struct bpf_verifier_env *env); + int (*translate)(struct net_device *netdev, struct bpf_prog *prog); }; struct bpf_prog_offload { diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0fa2c2744928..27499127e038 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -863,7 +863,6 @@ enum bpf_netdev_command { XDP_QUERY_PROG, XDP_QUERY_PROG_HW, /* BPF program for offload callbacks, invoked at program load time. */ - BPF_OFFLOAD_TRANSLATE, BPF_OFFLOAD_DESTROY, BPF_OFFLOAD_MAP_ALLOC, BPF_OFFLOAD_MAP_FREE, @@ -890,7 +889,7 @@ struct netdev_bpf { /* flags with which program was installed */ u32 prog_flags; }; - /* BPF_OFFLOAD_TRANSLATE, BPF_OFFLOAD_DESTROY */ + /* BPF_OFFLOAD_DESTROY */ struct { struct bpf_prog *prog; } offload; diff --git a/kernel/bpf/offload.c b/kernel/bpf/offload.c index 1f7ac00a494d..ae0167366c12 100644 --- a/kernel/bpf/offload.c +++ b/kernel/bpf/offload.c @@ -219,14 +219,14 @@ void bpf_prog_offload_destroy(struct bpf_prog *prog) static int bpf_prog_offload_translate(struct bpf_prog *prog) { - struct netdev_bpf data = {}; - int ret; - - data.offload.prog = prog; + struct bpf_prog_offload *offload; + int ret = -ENODEV; - rtnl_lock(); - ret = __bpf_offload_ndo(prog, BPF_OFFLOAD_TRANSLATE, &data); - rtnl_unlock(); + down_read(&bpf_devs_lock); + offload = prog->aux->offload; + if (offload) + ret = offload->offdev->ops->translate(offload->netdev, prog); + up_read(&bpf_devs_lock); return ret; } |