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netdevsim: associate bound programs with shared dev
Move bound program information from netdevsim to shared sub-object, as programs will soon be shared between netdevs of the same ASIC. 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>
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parent
eeeaaf185e
commit
d6d6071388
3 changed files with 27 additions and 19 deletions
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@ -238,8 +238,8 @@ static int nsim_bpf_create_prog(struct netdevsim *ns, struct bpf_prog *prog)
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state->state = "verify";
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/* Program id is not populated yet when we create the state. */
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sprintf(name, "%u", ns->prog_id_gen++);
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state->ddir = debugfs_create_dir(name, ns->ddir_bpf_bound_progs);
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sprintf(name, "%u", ns->sdev->prog_id_gen++);
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state->ddir = debugfs_create_dir(name, ns->sdev->ddir_bpf_bound_progs);
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if (IS_ERR_OR_NULL(state->ddir)) {
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kfree(state);
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return -ENOMEM;
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@ -250,7 +250,7 @@ static int nsim_bpf_create_prog(struct netdevsim *ns, struct bpf_prog *prog)
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&state->state, &nsim_bpf_string_fops);
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debugfs_create_bool("loaded", 0400, state->ddir, &state->is_loaded);
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list_add_tail(&state->l, &ns->bpf_bound_progs);
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list_add_tail(&state->l, &ns->sdev->bpf_bound_progs);
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prog->aux->offload->dev_priv = state;
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@ -497,7 +497,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap)
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}
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offmap->dev_ops = &nsim_bpf_map_ops;
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list_add_tail(&nmap->l, &ns->bpf_bound_maps);
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list_add_tail(&nmap->l, &ns->sdev->bpf_bound_maps);
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return 0;
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@ -582,8 +582,15 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
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int nsim_bpf_init(struct netdevsim *ns)
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{
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INIT_LIST_HEAD(&ns->bpf_bound_progs);
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INIT_LIST_HEAD(&ns->bpf_bound_maps);
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if (ns->sdev->refcnt == 1) {
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INIT_LIST_HEAD(&ns->sdev->bpf_bound_progs);
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INIT_LIST_HEAD(&ns->sdev->bpf_bound_maps);
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ns->sdev->ddir_bpf_bound_progs =
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debugfs_create_dir("bpf_bound_progs", ns->sdev->ddir);
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if (IS_ERR_OR_NULL(ns->sdev->ddir_bpf_bound_progs))
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return -ENOMEM;
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}
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debugfs_create_u32("bpf_offloaded_id", 0400, ns->ddir,
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&ns->bpf_offloaded_id);
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@ -593,10 +600,6 @@ int nsim_bpf_init(struct netdevsim *ns)
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&ns->bpf_bind_accept);
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debugfs_create_u32("bpf_bind_verifier_delay", 0600, ns->ddir,
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&ns->bpf_bind_verifier_delay);
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ns->ddir_bpf_bound_progs =
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debugfs_create_dir("bpf_bound_progs", ns->ddir);
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if (IS_ERR_OR_NULL(ns->ddir_bpf_bound_progs))
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return -ENOMEM;
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ns->bpf_tc_accept = true;
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debugfs_create_bool("bpf_tc_accept", 0600, ns->ddir,
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@ -619,9 +622,12 @@ int nsim_bpf_init(struct netdevsim *ns)
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void nsim_bpf_uninit(struct netdevsim *ns)
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{
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WARN_ON(!list_empty(&ns->bpf_bound_progs));
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WARN_ON(!list_empty(&ns->bpf_bound_maps));
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WARN_ON(ns->xdp.prog);
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WARN_ON(ns->xdp_hw.prog);
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WARN_ON(ns->bpf_offloaded);
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if (ns->sdev->refcnt == 1) {
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WARN_ON(!list_empty(&ns->sdev->bpf_bound_progs));
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WARN_ON(!list_empty(&ns->sdev->bpf_bound_maps));
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}
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}
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@ -35,6 +35,12 @@ struct netdevsim_shared_dev {
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u32 switch_id;
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struct dentry *ddir;
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struct dentry *ddir_bpf_bound_progs;
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u32 prog_id_gen;
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struct list_head bpf_bound_progs;
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struct list_head bpf_bound_maps;
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};
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#define NSIM_IPSEC_MAX_SA_COUNT 33
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@ -79,12 +85,8 @@ struct netdevsim {
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struct xdp_attachment_info xdp;
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struct xdp_attachment_info xdp_hw;
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u32 prog_id_gen;
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bool bpf_bind_accept;
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u32 bpf_bind_verifier_delay;
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struct dentry *ddir_bpf_bound_progs;
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struct list_head bpf_bound_progs;
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bool bpf_tc_accept;
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bool bpf_tc_non_bound_accept;
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@ -92,7 +94,6 @@ struct netdevsim {
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bool bpf_xdpoffload_accept;
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bool bpf_map_accept;
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struct list_head bpf_bound_maps;
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#if IS_ENABLED(CONFIG_NET_DEVLINK)
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struct devlink *devlink;
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#endif
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@ -314,6 +314,7 @@ class NetdevSim:
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self.ns = ""
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self.dfs_dir = '/sys/kernel/debug/netdevsim/%s' % (self.dev['ifname'])
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self.sdev_dir = self.dfs_dir + '/sdev/'
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self.dfs_refresh()
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def __getitem__(self, key):
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@ -345,12 +346,12 @@ class NetdevSim:
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return data.strip()
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def dfs_num_bound_progs(self):
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path = os.path.join(self.dfs_dir, "bpf_bound_progs")
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path = os.path.join(self.sdev_dir, "bpf_bound_progs")
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_, progs = cmd('ls %s' % (path))
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return len(progs.split())
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def dfs_get_bound_progs(self, expected):
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progs = DebugfsDir(os.path.join(self.dfs_dir, "bpf_bound_progs"))
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progs = DebugfsDir(os.path.join(self.sdev_dir, "bpf_bound_progs"))
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if expected is not None:
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if len(progs) != expected:
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fail(True, "%d BPF programs bound, expected %d" %
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