From dbd0bddc0195b3cf0e1828760be2a637648465da Mon Sep 17 00:00:00 2001 From: Petr Machata Date: Wed, 26 Feb 2020 09:39:18 +0100 Subject: [PATCH] mlxsw: spectrum: Move the ECN-marked packet counter to ethtool Spectrum-1 and Spectrum-2 do not have a per-TC counter of number of packets marked by ECN. The value reported currently is the total number of marked packets. Showing this value at individual TC Qdiscs is misleading. Move the counter to ethtool instead. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlxsw/spectrum.c | 25 +++++++++++++++++++ .../ethernet/mellanox/mlxsw/spectrum_qdisc.c | 9 ++----- 2 files changed, 27 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 0e399b0684357..1aae1c06077af 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -2228,6 +2228,15 @@ static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_3635_stats[] = { #define MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN \ ARRAY_SIZE(mlxsw_sp_port_hw_rfc_3635_stats) +static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_ext_stats[] = { + { + .str = "ecn_marked", + .getter = mlxsw_reg_ppcnt_ecn_marked_get, + }, +}; + +#define MLXSW_SP_PORT_HW_EXT_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_ext_stats) + static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_discard_stats[] = { { .str = "discard_ingress_general", @@ -2337,6 +2346,7 @@ static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = { MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN + \ MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN + \ MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN + \ + MLXSW_SP_PORT_HW_EXT_STATS_LEN + \ MLXSW_SP_PORT_HW_DISCARD_STATS_LEN + \ (MLXSW_SP_PORT_HW_PRIO_STATS_LEN * \ IEEE_8021QAZ_MAX_TCS) + \ @@ -2398,6 +2408,12 @@ static void mlxsw_sp_port_get_strings(struct net_device *dev, p += ETH_GSTRING_LEN; } + for (i = 0; i < MLXSW_SP_PORT_HW_EXT_STATS_LEN; i++) { + memcpy(p, mlxsw_sp_port_hw_ext_stats[i].str, + ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } + for (i = 0; i < MLXSW_SP_PORT_HW_DISCARD_STATS_LEN; i++) { memcpy(p, mlxsw_sp_port_hw_discard_stats[i].str, ETH_GSTRING_LEN); @@ -2459,6 +2475,10 @@ mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats, *p_hw_stats = mlxsw_sp_port_hw_rfc_3635_stats; *p_len = MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN; break; + case MLXSW_REG_PPCNT_EXT_CNT: + *p_hw_stats = mlxsw_sp_port_hw_ext_stats; + *p_len = MLXSW_SP_PORT_HW_EXT_STATS_LEN; + break; case MLXSW_REG_PPCNT_DISCARD_CNT: *p_hw_stats = mlxsw_sp_port_hw_discard_stats; *p_len = MLXSW_SP_PORT_HW_DISCARD_STATS_LEN; @@ -2528,6 +2548,11 @@ static void mlxsw_sp_port_get_stats(struct net_device *dev, data, data_index); data_index += MLXSW_SP_PORT_HW_RFC_3635_STATS_LEN; + /* Extended Counters */ + __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_EXT_CNT, 0, + data, data_index); + data_index += MLXSW_SP_PORT_HW_EXT_STATS_LEN; + /* Discard Counters */ __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_DISCARD_CNT, 0, data, data_index); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c index 02526c53d4f5b..13a054c0ce0f7 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_qdisc.c @@ -347,7 +347,6 @@ mlxsw_sp_setup_tc_qdisc_red_clean_stats(struct mlxsw_sp_port *mlxsw_sp_port, mlxsw_sp_qdisc->prio_bitmap, &stats_base->tx_packets, &stats_base->tx_bytes); - red_base->prob_mark = xstats->ecn; red_base->prob_drop = xstats->wred_drop[tclass_num]; red_base->pdrop = mlxsw_sp_xstats_tail_drop(xstats, tclass_num); @@ -453,22 +452,19 @@ mlxsw_sp_qdisc_get_red_xstats(struct mlxsw_sp_port *mlxsw_sp_port, u8 tclass_num = mlxsw_sp_qdisc->tclass_num; struct mlxsw_sp_port_xstats *xstats; struct red_stats *res = xstats_ptr; - int early_drops, marks, pdrops; + int early_drops, pdrops; xstats = &mlxsw_sp_port->periodic_hw_stats.xstats; early_drops = xstats->wred_drop[tclass_num] - xstats_base->prob_drop; - marks = xstats->ecn - xstats_base->prob_mark; pdrops = mlxsw_sp_xstats_tail_drop(xstats, tclass_num) - xstats_base->pdrop; res->pdrop += pdrops; res->prob_drop += early_drops; - res->prob_mark += marks; xstats_base->pdrop += pdrops; xstats_base->prob_drop += early_drops; - xstats_base->prob_mark += marks; return 0; } @@ -486,8 +482,7 @@ mlxsw_sp_qdisc_get_red_stats(struct mlxsw_sp_port *mlxsw_sp_port, stats_base = &mlxsw_sp_qdisc->stats_base; mlxsw_sp_qdisc_get_tc_stats(mlxsw_sp_port, mlxsw_sp_qdisc, stats_ptr); - overlimits = xstats->wred_drop[tclass_num] + xstats->ecn - - stats_base->overlimits; + overlimits = xstats->wred_drop[tclass_num] - stats_base->overlimits; stats_ptr->qstats->overlimits += overlimits; stats_base->overlimits += overlimits; -- 2.39.5