Date: Mon, 26 Mar 2018 20:28:50 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r331578 - in stable/11/sys/dev/mlx5: . mlx5_core mlx5_en Message-ID: <201803262028.w2QKSoT0016633@repo.freebsd.org>
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Author: hselasky Date: Mon Mar 26 20:28:50 2018 New Revision: 331578 URL: https://svnweb.freebsd.org/changeset/base/331578 Log: MFC r330608: Implement priority to traffic class mapping in mlx5core. Add support for mapping priority to traffic class via sysctl Submitted by: Slava Shwartsman <slavash@mellanox.com> Sponsored by: Mellanox Technologies Modified: stable/11/sys/dev/mlx5/mlx5_core/mlx5_port.c stable/11/sys/dev/mlx5/mlx5_en/en.h stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c stable/11/sys/dev/mlx5/port.h Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/mlx5/mlx5_core/mlx5_port.c ============================================================================== --- stable/11/sys/dev/mlx5/mlx5_core/mlx5_port.c Mon Mar 26 20:27:08 2018 (r331577) +++ stable/11/sys/dev/mlx5/mlx5_core/mlx5_port.c Mon Mar 26 20:28:50 2018 (r331578) @@ -943,6 +943,48 @@ int mlx5_modify_port_tc_rate_limit(struct mlx5_core_de } EXPORT_SYMBOL_GPL(mlx5_modify_port_tc_rate_limit); +int mlx5_query_port_prio_tc(struct mlx5_core_dev *mdev, + u8 prio, u8 *tc) +{ + u32 in[MLX5_ST_SZ_DW(qtct_reg)]; + u32 out[MLX5_ST_SZ_DW(qtct_reg)]; + int err; + + memset(in, 0, sizeof(in)); + memset(out, 0, sizeof(out)); + + MLX5_SET(qtct_reg, in, port_number, 1); + MLX5_SET(qtct_reg, in, prio, prio); + + err = mlx5_core_access_reg(mdev, in, sizeof(in), out, + sizeof(out), MLX5_REG_QTCT, 0, 0); + if (!err) + *tc = MLX5_GET(qtct_reg, out, tclass); + + return err; +} +EXPORT_SYMBOL_GPL(mlx5_query_port_prio_tc); + +int mlx5_set_port_prio_tc(struct mlx5_core_dev *mdev, int prio_index, + const u8 prio_tc) +{ + u32 in[MLX5_ST_SZ_DW(qtct_reg)] = {}; + u32 out[MLX5_ST_SZ_DW(qtct_reg)]; + int err; + + if (prio_tc > mlx5_max_tc(mdev)) + return -EINVAL; + + MLX5_SET(qtct_reg, in, prio, prio_index); + MLX5_SET(qtct_reg, in, tclass, prio_tc); + + err = mlx5_core_access_reg(mdev, in, sizeof(in), out, + sizeof(out), MLX5_REG_QTCT, 0, 1); + + return (err); +} +EXPORT_SYMBOL_GPL(mlx5_set_port_prio_tc); + int mlx5_modify_port_cong_params(struct mlx5_core_dev *mdev, void *in, int in_size) { Modified: stable/11/sys/dev/mlx5/mlx5_en/en.h ============================================================================== --- stable/11/sys/dev/mlx5/mlx5_en/en.h Mon Mar 26 20:27:08 2018 (r331577) +++ stable/11/sys/dev/mlx5/mlx5_en/en.h Mon Mar 26 20:28:50 2018 (r331578) @@ -429,6 +429,7 @@ struct mlx5e_params_ethtool { u64 arg [0]; MLX5E_PARAMS(MLX5E_STATS_VAR) u64 max_bw_value[IEEE_8021QAZ_MAX_TCS]; + u8 prio_tc[IEEE_8021QAZ_MAX_TCS]; }; /* EEPROM Standards for plug in modules */ Modified: stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c ============================================================================== --- stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c Mon Mar 26 20:27:08 2018 (r331577) +++ stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c Mon Mar 26 20:28:50 2018 (r331578) @@ -175,6 +175,60 @@ done: return (err); } +static int +mlx5e_get_prio_tc(struct mlx5e_priv *priv) +{ + struct mlx5_core_dev *mdev = priv->mdev; + int err = 0; + int i; + + PRIV_LOCK(priv); + if (!MLX5_CAP_GEN(priv->mdev, ets)) { + PRIV_UNLOCK(priv); + return (EOPNOTSUPP); + } + + for (i = 0; i <= mlx5_max_tc(priv->mdev); i++) { + err = -mlx5_query_port_prio_tc(mdev, i, &(priv->params_ethtool.prio_tc[i])); + if (err) + break; + } + + PRIV_UNLOCK(priv); + return (err); +} + +static int +mlx5e_prio_to_tc_handler(SYSCTL_HANDLER_ARGS) +{ + struct mlx5e_priv *priv = arg1; + int prio_index = arg2; + struct mlx5_core_dev *mdev = priv->mdev; + int err; + uint8_t result = priv->params_ethtool.prio_tc[prio_index]; + + PRIV_LOCK(priv); + err = sysctl_handle_8(oidp, &result, 0, req); + if (err || !req->newptr || + result == priv->params_ethtool.prio_tc[prio_index]) + goto done; + + if (result > mlx5_max_tc(mdev)) { + err = ERANGE; + goto done; + } + + err = -mlx5_set_port_prio_tc(mdev, prio_index, result); + if (err) + goto done; + + priv->params_ethtool.prio_tc[prio_index] = result; + +done: + PRIV_UNLOCK(priv); + return (err); +} + #define MLX5_PARAM_OFFSET(n) \ __offsetof(struct mlx5e_priv, params_ethtool.n) @@ -943,5 +997,17 @@ mlx5e_create_ethtool(struct mlx5e_priv *priv) priv, i, mlx5e_tc_maxrate_handler, "QU", "Max rate for priority, specified in kilobits, where kilo=1000, \ max_rate must be divisible by 100000"); + } + + if (mlx5e_get_prio_tc(priv)) + return; + + for (i = 0; i <= mlx5_max_tc(mdev); i++) { + char name[32]; + snprintf(name, sizeof(name), "prio_%d_to_tc", i); + SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(qos_node), + OID_AUTO, name, CTLTYPE_U8 | CTLFLAG_RW | CTLFLAG_MPSAFE, + priv, i, mlx5e_prio_to_tc_handler, "CU", + "Set priority to traffic class"); } } Modified: stable/11/sys/dev/mlx5/port.h ============================================================================== --- stable/11/sys/dev/mlx5/port.h Mon Mar 26 20:27:08 2018 (r331577) +++ stable/11/sys/dev/mlx5/port.h Mon Mar 26 20:28:50 2018 (r331578) @@ -151,4 +151,8 @@ int mlx5_query_port_tc_rate_limit(struct mlx5_core_dev int mlx5_modify_port_tc_rate_limit(struct mlx5_core_dev *mdev, const u8 *max_bw_value, const u8 *max_bw_units); +int mlx5_query_port_prio_tc(struct mlx5_core_dev *mdev, + u8 prio, u8 *tc); +int mlx5_set_port_prio_tc(struct mlx5_core_dev *mdev, int prio_index, + const u8 prio_tc); #endif /* __MLX5_PORT_H__ */
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