From: Ido Schimmel Date: Thu, 11 Mar 2021 12:24:12 +0000 (+0200) Subject: mlxsw: reg: Extend mirroring registers with probability rate field X-Git-Tag: xarray-5.18~1995^2~579^2~4 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=fa3faeb7aedbfbd7e30eb25a25058a2cce1010fb;p=users%2Fwilly%2Fxarray.git mlxsw: reg: Extend mirroring registers with probability rate field The MPAR and MPAGR registers are used to configure the binding between the mirroring trigger (e.g., received packet) and the SPAN agent. Add probability rate field, which will allow us to support sampling by mirroring to the CPU. Signed-off-by: Ido Schimmel Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 2f7f691f85ff..44f836246e33 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -9925,15 +9925,28 @@ MLXSW_ITEM32(reg, mpar, enable, 0x04, 31, 1); */ MLXSW_ITEM32(reg, mpar, pa_id, 0x04, 0, 4); +#define MLXSW_REG_MPAR_RATE_MAX 3500000000UL + +/* reg_mpar_probability_rate + * Sampling rate. + * Valid values are: 1 to 3.5*10^9 + * Value of 1 means "sample all". Default is 1. + * Reserved when Spectrum-1. + * Access: RW + */ +MLXSW_ITEM32(reg, mpar, probability_rate, 0x08, 0, 32); + static inline void mlxsw_reg_mpar_pack(char *payload, u8 local_port, enum mlxsw_reg_mpar_i_e i_e, - bool enable, u8 pa_id) + bool enable, u8 pa_id, + u32 probability_rate) { MLXSW_REG_ZERO(mpar, payload); mlxsw_reg_mpar_local_port_set(payload, local_port); mlxsw_reg_mpar_enable_set(payload, enable); mlxsw_reg_mpar_i_e_set(payload, i_e); mlxsw_reg_mpar_pa_id_set(payload, pa_id); + mlxsw_reg_mpar_probability_rate_set(payload, probability_rate); } /* MGIR - Management General Information Register @@ -10577,6 +10590,8 @@ MLXSW_ITEM32(reg, mpagr, trigger, 0x00, 0, 4); */ MLXSW_ITEM32(reg, mpagr, pa_id, 0x04, 0, 4); +#define MLXSW_REG_MPAGR_RATE_MAX 3500000000UL + /* reg_mpagr_probability_rate * Sampling rate. * Valid values are: 1 to 3.5*10^9 diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c index 3287211819df..7711ace07ec8 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c @@ -1232,7 +1232,7 @@ __mlxsw_sp_span_trigger_port_bind(struct mlxsw_sp_span *span, } mlxsw_reg_mpar_pack(mpar_pl, trigger_entry->local_port, i_e, enable, - trigger_entry->parms.span_id); + trigger_entry->parms.span_id, 1); return mlxsw_reg_write(span->mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl); }