From: Yotam Gigi Date: Mon, 23 Jan 2017 10:07:10 +0000 (+0100) Subject: mlxsw: reg: add the Monitoring Packet Sampling Configuration Register X-Git-Tag: v4.11-rc1~124^2~339^2~1 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=0677d6828b039bdccc6161a4ea6ae715489dca7e;p=linux.git mlxsw: reg: add the Monitoring Packet Sampling Configuration Register The MPSC register allows to configure ingress packet sampling on specific port of the mlxsw device. The sampled packets are then trapped via PKT_SAMPLE trap. Signed-off-by: Yotam Gigi Signed-off-by: Jiri Pirko Reviewed-by: Ido Schimmel 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 1357fe04391b..9fb0316b3a30 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -4965,6 +4965,46 @@ static inline void mlxsw_reg_mlcr_pack(char *payload, u8 local_port, MLXSW_REG_MLCR_DURATION_MAX : 0); } +/* MPSC - Monitoring Packet Sampling Configuration Register + * -------------------------------------------------------- + * MPSC Register is used to configure the Packet Sampling mechanism. + */ +#define MLXSW_REG_MPSC_ID 0x9080 +#define MLXSW_REG_MPSC_LEN 0x1C + +MLXSW_REG_DEFINE(mpsc, MLXSW_REG_MPSC_ID, MLXSW_REG_MPSC_LEN); + +/* reg_mpsc_local_port + * Local port number + * Not supported for CPU port + * Access: Index + */ +MLXSW_ITEM32(reg, mpsc, local_port, 0x00, 16, 8); + +/* reg_mpsc_e + * Enable sampling on port local_port + * Access: RW + */ +MLXSW_ITEM32(reg, mpsc, e, 0x04, 30, 1); + +#define MLXSW_REG_MPSC_RATE_MAX 3500000000UL + +/* reg_mpsc_rate + * Sampling rate = 1 out of rate packets (with randomization around + * the point). Valid values are: 1 to MLXSW_REG_MPSC_RATE_MAX + * Access: RW + */ +MLXSW_ITEM32(reg, mpsc, rate, 0x08, 0, 32); + +static inline void mlxsw_reg_mpsc_pack(char *payload, u8 local_port, bool e, + u32 rate) +{ + MLXSW_REG_ZERO(mpsc, payload); + mlxsw_reg_mpsc_local_port_set(payload, local_port); + mlxsw_reg_mpsc_e_set(payload, e); + mlxsw_reg_mpsc_rate_set(payload, rate); +} + /* SBPR - Shared Buffer Pools Register * ----------------------------------- * The SBPR configures and retrieves the shared buffer pools and configuration. @@ -5429,6 +5469,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = { MLXSW_REG(mpat), MLXSW_REG(mpar), MLXSW_REG(mlcr), + MLXSW_REG(mpsc), MLXSW_REG(sbpr), MLXSW_REG(sbcm), MLXSW_REG(sbpm),