Searched hist:"341 b3e7b7b89315c43d262da3199098bcf9bbe57" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/kernel/bpf/ |
| H A D | offload.c | diff 341b3e7b7b89315c43d262da3199098bcf9bbe57 Fri Nov 09 07:03:26 CST 2018 Quentin Monnet <quentin.monnet@netronome.com> bpf: call verify_insn from its callback in struct bpf_offload_dev
We intend to remove the dev_ops in struct bpf_prog_offload, and to only
keep the ops in struct bpf_offload_dev instead, which is accessible from
more locations for passing function pointers.
But dev_ops is used for calling the verify_insn hook. Switch to the
newly added ops in struct bpf_prog_offload instead.
To avoid table lookups for each eBPF instruction to verify, we remember
the offdev attached to a netdev and modify bpf_offload_find_netdev() to
avoid performing more than once a lookup for a given offload object.
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
| /openbmc/linux/include/linux/ |
| H A D | bpf.h | diff 341b3e7b7b89315c43d262da3199098bcf9bbe57 Fri Nov 09 07:03:26 CST 2018 Quentin Monnet <quentin.monnet@netronome.com> bpf: call verify_insn from its callback in struct bpf_offload_dev
We intend to remove the dev_ops in struct bpf_prog_offload, and to only
keep the ops in struct bpf_offload_dev instead, which is accessible from
more locations for passing function pointers.
But dev_ops is used for calling the verify_insn hook. Switch to the
newly added ops in struct bpf_prog_offload instead.
To avoid table lookups for each eBPF instruction to verify, we remember
the offdev attached to a netdev and modify bpf_offload_find_netdev() to
avoid performing more than once a lookup for a given offload object.
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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