mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-23 02:51:47 +00:00
Code Issues Releases Wiki Activity

mlxsw: reg: Extend mirroring registers with probability rate field

Browse source 
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 <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2021-03-11 14:24:12 +02:00 committed by David S. Miller
parent 5c7659eba8
commit fa3faeb7ae
2 changed files with 17 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
drivers/net/ethernet/mellanox/mlxsw/reg.h
View file

@ -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

2
drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
View file

@ -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);
}