diff options
| author | Jiri Pirko <jiri@mellanox.com> | 2017-10-19 15:50:36 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-21 03:04:07 +0100 |
| commit | 3f7889c4c79b0afc012026431d4db4bad4e84473 (patch) | |
| tree | 7fa212071e2885b043516509643248ff1a6867d7 /net/sched/cls_bpf.c | |
| parent | 245dc5121a9bf6a0a12ac1e72f47822fc3fa8cae (diff) | |
| download | linux-3f7889c4c79b0afc012026431d4db4bad4e84473.tar.gz | |
net: sched: cls_bpf: call block callbacks for offload
Use the newly introduced callbacks infrastructure and call block callbacks alongside with the existing per-netdev ndo_setup_tc. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_bpf.c')
| -rw-r--r-- | net/sched/cls_bpf.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c index 6c6b21f6ba62..e379fdf928bd 100644 --- a/net/sched/cls_bpf.c +++ b/net/sched/cls_bpf.c @@ -147,7 +147,10 @@ static bool cls_bpf_is_ebpf(const struct cls_bpf_prog *prog) static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog, enum tc_clsbpf_command cmd) { + bool addorrep = cmd == TC_CLSBPF_ADD || cmd == TC_CLSBPF_REPLACE; struct net_device *dev = tp->q->dev_queue->dev; + struct tcf_block *block = tp->chain->block; + bool skip_sw = tc_skip_sw(prog->gen_flags); struct tc_cls_bpf_offload cls_bpf = {}; int err; @@ -159,17 +162,38 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog, cls_bpf.exts_integrated = prog->exts_integrated; cls_bpf.gen_flags = prog->gen_flags; - err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSBPF, &cls_bpf); - if (!err && (cmd == TC_CLSBPF_ADD || cmd == TC_CLSBPF_REPLACE)) - prog->gen_flags |= TCA_CLS_FLAGS_IN_HW; + if (tc_can_offload(dev)) { + err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSBPF, + &cls_bpf); + if (addorrep) { + if (err) { + if (skip_sw) + return err; + } else { + prog->gen_flags |= TCA_CLS_FLAGS_IN_HW; + } + } + } + + err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw); + if (addorrep) { + if (err < 0) { + cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_DESTROY); + return err; + } else if (err > 0) { + prog->gen_flags |= TCA_CLS_FLAGS_IN_HW; + } + } - return err; + if (addorrep && skip_sw && !(prog->gen_flags && TCA_CLS_FLAGS_IN_HW)) + return -EINVAL; + + return 0; } static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog, struct cls_bpf_prog *oldprog) { - struct net_device *dev = tp->q->dev_queue->dev; struct cls_bpf_prog *obj = prog; enum tc_clsbpf_command cmd; bool skip_sw; @@ -179,7 +203,7 @@ static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog, (oldprog && tc_skip_sw(oldprog->gen_flags)); if (oldprog && oldprog->offloaded) { - if (tc_should_offload(dev, prog->gen_flags)) { + if (!tc_skip_hw(prog->gen_flags)) { cmd = TC_CLSBPF_REPLACE; } else if (!tc_skip_sw(prog->gen_flags)) { obj = oldprog; @@ -188,14 +212,14 @@ static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog, return -EINVAL; } } else { - if (!tc_should_offload(dev, prog->gen_flags)) + if (tc_skip_hw(prog->gen_flags)) return skip_sw ? -EINVAL : 0; cmd = TC_CLSBPF_ADD; } ret = cls_bpf_offload_cmd(tp, obj, cmd); if (ret) - return skip_sw ? ret : 0; + return ret; obj->offloaded = true; if (oldprog) |