nfp: bpf: add support for bpf_get_prandom_u32()

Browse source

NFP has a prng register, which we can read to obtain a u32 worth
of pseudo random data.  Generate code for it.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Jakub Kicinski 2018-03-28 17:48:37 -07:00 • committed by Alexei Starovoitov

parent 41aed09cf6

commit df4a37d8b5

6 changed files with 47 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

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

View file

24

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

View file

12

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

View file

4

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

View file

7

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

View file

1

drivers/net/ethernet/netronome/nfp/nfp_asm.h

View file