]> git.baikalelectronics.ru Git - kernel.git/commit
nfp: bpf: add basic support for atomic adds
authorJakub Kicinski <jakub.kicinski@netronome.com>
Thu, 29 Mar 2018 00:48:34 +0000 (17:48 -0700)
committerAlexei Starovoitov <ast@kernel.org>
Thu, 29 Mar 2018 02:36:13 +0000 (19:36 -0700)
commitf5f206f0f7a87dda41e8f6be65cc94c36c7103c2
tree660928c1a3e8585e8f47f06ff577a3fdf166d141
parentf67e7b978a826103b7f1c9f36856e080142bdc04
nfp: bpf: add basic support for atomic adds

Implement atomic add operation for 32 and 64 bit values.  Depend
on the verifier to ensure alignment.  Values have to be kept in
big endian and swapped upon read/write.  For now only support
atomic add of a constant.

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>
drivers/net/ethernet/netronome/nfp/bpf/jit.c
drivers/net/ethernet/netronome/nfp/bpf/main.h
drivers/net/ethernet/netronome/nfp/bpf/offload.c
drivers/net/ethernet/netronome/nfp/bpf/verifier.c
drivers/net/ethernet/netronome/nfp/nfp_asm.c
drivers/net/ethernet/netronome/nfp/nfp_asm.h