mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
netdevsim: merge sdev into dev
As previously introduce dev which is mapped 1:1 to a bus device covers the purpose of the original shared device, merge the sdev code into dev. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
David S. Miller
parent
a60f9e48b7
commit
d514f41e79
@ -3,7 +3,7 @@
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obj-$(CONFIG_NETDEVSIM) += netdevsim.o
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netdevsim-objs := \
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netdev.o dev.o fib.o sdev.o bus.o
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netdev.o dev.o fib.o bus.o
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ifeq ($(CONFIG_BPF_SYSCALL),y)
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netdevsim-objs += \
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@ -27,7 +27,7 @@
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bpf_verifier_log_write(env, "[netdevsim] " fmt, ##__VA_ARGS__)
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struct nsim_bpf_bound_prog {
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struct netdevsim_shared_dev *sdev;
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struct nsim_dev *nsim_dev;
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struct bpf_prog *prog;
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struct dentry *ddir;
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const char *state;
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@ -65,8 +65,8 @@ nsim_bpf_verify_insn(struct bpf_verifier_env *env, int insn_idx, int prev_insn)
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struct nsim_bpf_bound_prog *state;
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state = env->prog->aux->offload->dev_priv;
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if (state->sdev->bpf_bind_verifier_delay && !insn_idx)
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msleep(state->sdev->bpf_bind_verifier_delay);
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if (state->nsim_dev->bpf_bind_verifier_delay && !insn_idx)
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msleep(state->nsim_dev->bpf_bind_verifier_delay);
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if (insn_idx == env->prog->len - 1)
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pr_vlog(env, "Hello from netdevsim!\n");
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@ -213,7 +213,7 @@ nsim_xdp_set_prog(struct netdevsim *ns, struct netdev_bpf *bpf,
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return 0;
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}
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static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
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static int nsim_bpf_create_prog(struct nsim_dev *nsim_dev,
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struct bpf_prog *prog)
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{
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struct nsim_bpf_bound_prog *state;
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@ -223,13 +223,13 @@ static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
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if (!state)
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return -ENOMEM;
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state->sdev = sdev;
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state->nsim_dev = nsim_dev;
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state->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", sdev->prog_id_gen++);
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state->ddir = debugfs_create_dir(name, sdev->ddir_bpf_bound_progs);
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sprintf(name, "%u", nsim_dev->prog_id_gen++);
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state->ddir = debugfs_create_dir(name, nsim_dev->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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@ -240,7 +240,7 @@ static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
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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, &sdev->bpf_bound_progs);
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list_add_tail(&state->l, &nsim_dev->bpf_bound_progs);
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prog->aux->offload->dev_priv = state;
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@ -249,13 +249,13 @@ static int nsim_bpf_create_prog(struct netdevsim_shared_dev *sdev,
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static int nsim_bpf_verifier_prep(struct bpf_prog *prog)
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{
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struct netdevsim_shared_dev *sdev =
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struct nsim_dev *nsim_dev =
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bpf_offload_dev_priv(prog->aux->offload->offdev);
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if (!sdev->bpf_bind_accept)
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if (!nsim_dev->bpf_bind_accept)
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return -EOPNOTSUPP;
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return nsim_bpf_create_prog(sdev, prog);
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return nsim_bpf_create_prog(nsim_dev, prog);
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}
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static int nsim_bpf_translate(struct bpf_prog *prog)
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@ -514,7 +514,7 @@ 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->sdev->bpf_bound_maps);
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list_add_tail(&nmap->l, &ns->nsim_dev->bpf_bound_maps);
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return 0;
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@ -578,51 +578,46 @@ int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf)
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}
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}
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static int nsim_bpf_sdev_init(struct netdevsim_shared_dev *sdev)
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int nsim_bpf_dev_init(struct nsim_dev *nsim_dev)
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{
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int err;
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INIT_LIST_HEAD(&sdev->bpf_bound_progs);
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INIT_LIST_HEAD(&sdev->bpf_bound_maps);
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INIT_LIST_HEAD(&nsim_dev->bpf_bound_progs);
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INIT_LIST_HEAD(&nsim_dev->bpf_bound_maps);
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sdev->ddir_bpf_bound_progs =
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debugfs_create_dir("bpf_bound_progs", sdev->ddir);
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if (IS_ERR_OR_NULL(sdev->ddir_bpf_bound_progs))
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nsim_dev->ddir_bpf_bound_progs = debugfs_create_dir("bpf_bound_progs",
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nsim_dev->ddir);
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if (IS_ERR_OR_NULL(nsim_dev->ddir_bpf_bound_progs))
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return -ENOMEM;
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sdev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops, sdev);
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err = PTR_ERR_OR_ZERO(sdev->bpf_dev);
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nsim_dev->bpf_dev = bpf_offload_dev_create(&nsim_bpf_dev_ops, nsim_dev);
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err = PTR_ERR_OR_ZERO(nsim_dev->bpf_dev);
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if (err)
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return err;
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sdev->bpf_bind_accept = true;
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debugfs_create_bool("bpf_bind_accept", 0600, sdev->ddir,
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&sdev->bpf_bind_accept);
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debugfs_create_u32("bpf_bind_verifier_delay", 0600, sdev->ddir,
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&sdev->bpf_bind_verifier_delay);
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nsim_dev->bpf_bind_accept = true;
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debugfs_create_bool("bpf_bind_accept", 0600, nsim_dev->ddir,
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&nsim_dev->bpf_bind_accept);
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debugfs_create_u32("bpf_bind_verifier_delay", 0600, nsim_dev->ddir,
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&nsim_dev->bpf_bind_verifier_delay);
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return 0;
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}
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static void nsim_bpf_sdev_uninit(struct netdevsim_shared_dev *sdev)
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void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev)
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{
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WARN_ON(!list_empty(&sdev->bpf_bound_progs));
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WARN_ON(!list_empty(&sdev->bpf_bound_maps));
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bpf_offload_dev_destroy(sdev->bpf_dev);
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WARN_ON(!list_empty(&nsim_dev->bpf_bound_progs));
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WARN_ON(!list_empty(&nsim_dev->bpf_bound_maps));
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bpf_offload_dev_destroy(nsim_dev->bpf_dev);
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}
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int nsim_bpf_init(struct netdevsim *ns)
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{
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int err;
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if (ns->sdev->refcnt == 1) {
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err = nsim_bpf_sdev_init(ns->sdev);
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if (err)
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return err;
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}
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err = bpf_offload_dev_netdev_register(ns->sdev->bpf_dev, ns->netdev);
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err = bpf_offload_dev_netdev_register(ns->nsim_dev->bpf_dev,
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ns->netdev);
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if (err)
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goto err_bpf_sdev_uninit;
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return err;
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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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@ -644,11 +639,6 @@ int nsim_bpf_init(struct netdevsim *ns)
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&ns->bpf_map_accept);
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return 0;
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err_bpf_sdev_uninit:
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if (ns->sdev->refcnt == 1)
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nsim_bpf_sdev_uninit(ns->sdev);
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return err;
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}
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void nsim_bpf_uninit(struct netdevsim *ns)
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@ -656,8 +646,5 @@ void nsim_bpf_uninit(struct netdevsim *ns)
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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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bpf_offload_dev_netdev_unregister(ns->sdev->bpf_dev, ns->netdev);
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if (ns->sdev->refcnt == 1)
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nsim_bpf_sdev_uninit(ns->sdev);
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bpf_offload_dev_netdev_unregister(ns->nsim_dev->bpf_dev, ns->netdev);
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}
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@ -15,12 +15,31 @@
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* THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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*/
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#include <linux/debugfs.h>
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#include <linux/device.h>
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#include <linux/rtnetlink.h>
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#include <net/devlink.h>
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#include "netdevsim.h"
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static struct dentry *nsim_dev_ddir;
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static int nsim_dev_debugfs_init(struct nsim_dev *nsim_dev)
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{
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char dev_ddir_name[10];
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sprintf(dev_ddir_name, "%u", nsim_dev->nsim_bus_dev->dev.id);
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nsim_dev->ddir = debugfs_create_dir(dev_ddir_name, nsim_dev_ddir);
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if (IS_ERR_OR_NULL(nsim_dev->ddir))
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return PTR_ERR_OR_ZERO(nsim_dev->ddir) ?: -EINVAL;
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return 0;
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}
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static void nsim_dev_debugfs_exit(struct nsim_dev *nsim_dev)
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{
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debugfs_remove_recursive(nsim_dev->ddir);
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}
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static u64 nsim_dev_ipv4_fib_resource_occ_get(void *priv)
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{
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struct nsim_dev *nsim_dev = priv;
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@ -184,6 +203,7 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
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if (!devlink)
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return ERR_PTR(-ENOMEM);
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nsim_dev = devlink_priv(devlink);
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nsim_dev->nsim_bus_dev = nsim_bus_dev;
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nsim_dev->fib_data = nsim_fib_create();
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if (IS_ERR(nsim_dev->fib_data)) {
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@ -199,8 +219,20 @@ static struct nsim_dev *nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev)
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if (err)
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goto err_resources_unregister;
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err = nsim_dev_debugfs_init(nsim_dev);
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if (err)
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goto err_dl_unregister;
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err = nsim_bpf_dev_init(nsim_dev);
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if (err)
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goto err_debugfs_exit;
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return nsim_dev;
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err_debugfs_exit:
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nsim_dev_debugfs_exit(nsim_dev);
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err_dl_unregister:
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devlink_unregister(devlink);
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err_resources_unregister:
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devlink_resources_unregister(devlink, NULL);
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err_fib_destroy:
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@ -228,8 +260,23 @@ void nsim_dev_destroy(struct nsim_dev *nsim_dev)
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{
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struct devlink *devlink = priv_to_devlink(nsim_dev);
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nsim_bpf_dev_exit(nsim_dev);
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nsim_dev_debugfs_exit(nsim_dev);
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devlink_unregister(devlink);
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devlink_resources_unregister(devlink, NULL);
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nsim_fib_destroy(nsim_dev->fib_data);
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devlink_free(devlink);
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}
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int nsim_dev_init(void)
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{
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nsim_dev_ddir = debugfs_create_dir(DRV_NAME "_dev", NULL);
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if (IS_ERR_OR_NULL(nsim_dev_ddir))
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return -ENOMEM;
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return 0;
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}
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void nsim_dev_exit(void)
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{
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debugfs_remove_recursive(nsim_dev_ddir);
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}
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@ -32,24 +32,24 @@ static int nsim_get_port_parent_id(struct net_device *dev,
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{
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struct netdevsim *ns = netdev_priv(dev);
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ppid->id_len = sizeof(ns->sdev->switch_id);
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memcpy(&ppid->id, &ns->sdev->switch_id, ppid->id_len);
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ppid->id_len = sizeof(ns->nsim_dev->nsim_bus_dev->dev.id);
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memcpy(&ppid->id, &ns->nsim_dev->nsim_bus_dev->dev.id, ppid->id_len);
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return 0;
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}
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static int nsim_init(struct net_device *dev)
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{
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struct netdevsim *ns = netdev_priv(dev);
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char sdev_link_name[32];
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char dev_link_name[32];
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int err;
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ns->ddir = debugfs_create_dir(netdev_name(dev), nsim_ddir);
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if (IS_ERR_OR_NULL(ns->ddir))
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return -ENOMEM;
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sprintf(sdev_link_name, "../../" DRV_NAME "_sdev/%u",
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ns->sdev->switch_id);
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debugfs_create_symlink("sdev", ns->ddir, sdev_link_name);
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sprintf(dev_link_name, "../../" DRV_NAME "_dev/%u",
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ns->nsim_dev->nsim_bus_dev->dev.id);
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debugfs_create_symlink("dev", ns->ddir, dev_link_name);
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err = nsim_bpf_init(ns);
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if (err)
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@ -80,7 +80,6 @@ static void nsim_free(struct net_device *dev)
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nsim_dev_destroy(ns->nsim_dev);
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nsim_bus_dev_del(ns->nsim_bus_dev);
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/* netdev and vf state will be freed out of device_release() */
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nsim_sdev_put(ns->sdev);
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}
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static netdev_tx_t nsim_start_xmit(struct sk_buff *skb, struct net_device *dev)
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@ -366,31 +365,11 @@ static int nsim_newlink(struct net *src_net, struct net_device *dev,
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struct netlink_ext_ack *extack)
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{
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struct netdevsim *ns = netdev_priv(dev);
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struct netdevsim *joinns = NULL;
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int err;
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if (tb[IFLA_LINK]) {
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struct net_device *joindev;
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joindev = __dev_get_by_index(src_net,
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nla_get_u32(tb[IFLA_LINK]));
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if (!joindev)
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return -ENODEV;
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if (joindev->netdev_ops != &nsim_netdev_ops)
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return -EINVAL;
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joinns = netdev_priv(joindev);
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}
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ns->sdev = nsim_sdev_get(joinns);
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if (IS_ERR(ns->sdev))
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return PTR_ERR(ns->sdev);
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ns->nsim_bus_dev = nsim_bus_dev_new(~0, 0);
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if (IS_ERR(ns->nsim_bus_dev)) {
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err = PTR_ERR(ns->nsim_bus_dev);
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goto err_sdev_put;
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}
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if (IS_ERR(ns->nsim_bus_dev))
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return PTR_ERR(ns->nsim_bus_dev);
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SET_NETDEV_DEV(dev, &ns->nsim_bus_dev->dev);
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ns->netdev = dev;
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@ -410,8 +389,6 @@ err_dev_destroy:
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nsim_dev_destroy(ns->nsim_dev);
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err_dev_del:
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nsim_bus_dev_del(ns->nsim_bus_dev);
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err_sdev_put:
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nsim_sdev_put(ns->sdev);
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return err;
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}
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@ -431,13 +408,13 @@ static int __init nsim_module_init(void)
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if (IS_ERR_OR_NULL(nsim_ddir))
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return -ENOMEM;
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err = nsim_sdev_init();
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err = nsim_dev_init();
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if (err)
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goto err_debugfs_destroy;
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err = nsim_bus_init();
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if (err)
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goto err_sdev_exit;
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goto err_dev_exit;
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err = rtnl_link_register(&nsim_link_ops);
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if (err)
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@ -447,8 +424,8 @@ static int __init nsim_module_init(void)
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err_bus_exit:
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nsim_bus_exit();
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err_sdev_exit:
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nsim_sdev_exit();
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err_dev_exit:
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nsim_dev_exit();
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err_debugfs_destroy:
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debugfs_remove_recursive(nsim_ddir);
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return err;
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@ -458,7 +435,7 @@ static void __exit nsim_module_exit(void)
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{
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rtnl_link_unregister(&nsim_link_ops);
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nsim_bus_exit();
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nsim_sdev_exit();
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nsim_dev_exit();
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debugfs_remove_recursive(nsim_ddir);
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}
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@ -26,37 +26,6 @@
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#define NSIM_EA(extack, msg) NL_SET_ERR_MSG_MOD((extack), msg)
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struct bpf_prog;
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struct bpf_offload_dev;
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struct dentry;
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struct nsim_vf_config;
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struct nsim_fib_data;
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struct netdevsim_shared_dev {
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unsigned int refcnt;
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u32 switch_id;
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struct dentry *ddir;
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struct bpf_offload_dev *bpf_dev;
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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;
|
||||
u32 prog_id_gen;
|
||||
|
||||
struct list_head bpf_bound_progs;
|
||||
struct list_head bpf_bound_maps;
|
||||
};
|
||||
|
||||
struct netdevsim;
|
||||
|
||||
struct netdevsim_shared_dev *nsim_sdev_get(struct netdevsim *joinns);
|
||||
void nsim_sdev_put(struct netdevsim_shared_dev *sdev);
|
||||
int nsim_sdev_init(void);
|
||||
void nsim_sdev_exit(void);
|
||||
|
||||
#define NSIM_IPSEC_MAX_SA_COUNT 33
|
||||
#define NSIM_IPSEC_VALID BIT(31)
|
||||
|
||||
@ -87,7 +56,6 @@ struct netdevsim {
|
||||
struct u64_stats_sync syncp;
|
||||
|
||||
struct nsim_bus_dev *nsim_bus_dev;
|
||||
struct netdevsim_shared_dev *sdev;
|
||||
|
||||
struct dentry *ddir;
|
||||
|
||||
@ -107,6 +75,8 @@ struct netdevsim {
|
||||
};
|
||||
|
||||
#ifdef CONFIG_BPF_SYSCALL
|
||||
int nsim_bpf_dev_init(struct nsim_dev *nsim_dev);
|
||||
void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev);
|
||||
int nsim_bpf_init(struct netdevsim *ns);
|
||||
void nsim_bpf_uninit(struct netdevsim *ns);
|
||||
int nsim_bpf(struct net_device *dev, struct netdev_bpf *bpf);
|
||||
@ -114,6 +84,15 @@ int nsim_bpf_disable_tc(struct netdevsim *ns);
|
||||
int nsim_bpf_setup_tc_block_cb(enum tc_setup_type type,
|
||||
void *type_data, void *cb_priv);
|
||||
#else
|
||||
|
||||
static inline int nsim_bpf_dev_init(struct nsim_dev *nsim_dev)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void nsim_bpf_dev_exit(struct nsim_dev *nsim_dev)
|
||||
{
|
||||
}
|
||||
static inline int nsim_bpf_init(struct netdevsim *ns)
|
||||
{
|
||||
return 0;
|
||||
@ -152,13 +131,24 @@ enum nsim_resource_id {
|
||||
};
|
||||
|
||||
struct nsim_dev {
|
||||
struct nsim_bus_dev *nsim_bus_dev;
|
||||
struct nsim_fib_data *fib_data;
|
||||
struct dentry *ddir;
|
||||
struct bpf_offload_dev *bpf_dev;
|
||||
bool bpf_bind_accept;
|
||||
u32 bpf_bind_verifier_delay;
|
||||
struct dentry *ddir_bpf_bound_progs;
|
||||
u32 prog_id_gen;
|
||||
struct list_head bpf_bound_progs;
|
||||
struct list_head bpf_bound_maps;
|
||||
};
|
||||
|
||||
struct nsim_dev *
|
||||
nsim_dev_create_with_ns(struct nsim_bus_dev *nsim_bus_dev,
|
||||
struct netdevsim *ns);
|
||||
void nsim_dev_destroy(struct nsim_dev *nsim_dev);
|
||||
int nsim_dev_init(void);
|
||||
void nsim_dev_exit(void);
|
||||
|
||||
struct nsim_fib_data *nsim_fib_create(void);
|
||||
void nsim_fib_destroy(struct nsim_fib_data *fib_data);
|
||||
|
||||
@ -335,7 +335,7 @@ class NetdevSim:
|
||||
self.ns = ""
|
||||
|
||||
self.dfs_dir = '/sys/kernel/debug/netdevsim/%s' % (self.dev['ifname'])
|
||||
self.sdev_dir = self.dfs_dir + '/sdev/'
|
||||
self.dev_dir = self.dfs_dir + '/dev/'
|
||||
self.dfs_refresh()
|
||||
|
||||
def __getitem__(self, key):
|
||||
@ -368,12 +368,12 @@ class NetdevSim:
|
||||
return data.strip()
|
||||
|
||||
def dfs_num_bound_progs(self):
|
||||
path = os.path.join(self.sdev_dir, "bpf_bound_progs")
|
||||
path = os.path.join(self.dev_dir, "bpf_bound_progs")
|
||||
_, progs = cmd('ls %s' % (path))
|
||||
return len(progs.split())
|
||||
|
||||
def dfs_get_bound_progs(self, expected):
|
||||
progs = DebugfsDir(os.path.join(self.sdev_dir, "bpf_bound_progs"))
|
||||
progs = DebugfsDir(os.path.join(self.dev_dir, "bpf_bound_progs"))
|
||||
if expected is not None:
|
||||
if len(progs) != expected:
|
||||
fail(True, "%d BPF programs bound, expected %d" %
|
||||
@ -1055,7 +1055,7 @@ try:
|
||||
|
||||
start_test("Test if netdev removal waits for translation...")
|
||||
delay_msec = 500
|
||||
sim.dfs["sdev/bpf_bind_verifier_delay"] = delay_msec
|
||||
sim.dfs["dev/bpf_bind_verifier_delay"] = delay_msec
|
||||
start = time.time()
|
||||
cmd_line = "tc filter add dev %s ingress bpf %s da skip_sw" % \
|
||||
(sim['ifname'], obj)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user