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| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-03-28 17:48:34 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2018-03-28 19:36:13 -0700 |
| commit | dcb0c27f3c989fecae42593f470a2413434aae28 (patch) | |
| tree | 660928c1a3e8585e8f47f06ff577a3fdf166d141 /drivers/net/ethernet/netronome/nfp/nfp_asm.c | |
| parent | bpf: add parenthesis around argument of BPF_LDST_BYTES() (diff) | |
| download | linux-dev-dcb0c27f3c989fecae42593f470a2413434aae28.tar.xz linux-dev-dcb0c27f3c989fecae42593f470a2413434aae28.zip | |
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>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_asm.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/nfp_asm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_asm.c b/drivers/net/ethernet/netronome/nfp/nfp_asm.c index 1e597600c693..3c0107ac9a2c 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_asm.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_asm.c @@ -48,6 +48,7 @@ const struct cmd_tgt_act cmd_tgt_act[__CMD_TGT_MAP_SIZE] = { [CMD_TGT_READ32_SWAP] = { 0x02, 0x5c }, [CMD_TGT_READ_LE] = { 0x01, 0x40 }, [CMD_TGT_READ_SWAP_LE] = { 0x03, 0x40 }, + [CMD_TGT_ADD_IMM] = { 0x02, 0x47 }, }; static bool unreg_is_imm(u16 reg) |