nfp: bpf: account for BPF-to-BPF calls when preparing nfp JIT

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Similarly to "exit" or "helper call" instructions, BPF-to-BPF calls will
require additional processing before translation starts, in order to
record and mark jump destinations.

We also mark the instructions where each subprogram begins. This will be
used in a following commit to determine where to add prologues for
subprograms.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

...

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Quentin Monnet 2018-10-07 12:56:51 +01:00 • committed by Daniel Borkmann

parent bcfdfb7c96

commit e3b49dc69b

2 changed files with 27 additions and 11 deletions

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35

drivers/net/ethernet/netronome/nfp/bpf/jit.c

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3

drivers/net/ethernet/netronome/nfp/bpf/main.h

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