Author: hselasky
Date: Mon Apr 27 14:35:39 2020
New Revision: 360377
URL: https://svnweb.freebsd.org/changeset/base/360377
Log:
Add support for reading temperature in mlx5en(4).
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/dev/mlx5/mlx5_en/en.h
head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
head/sys/dev/mlx5/mlx5_ifc.h
Modified: head/sys/dev/mlx5/mlx5_en/en.h
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/en.h Mon Apr 27 14:03:24 2020
(r360376)
+++ head/sys/dev/mlx5/mlx5_en/en.h Mon Apr 27 14:35:39 2020
(r360377)
@@ -728,6 +728,8 @@ struct mlx5e_params_ethtool {
u16 fec_avail_50x[MLX5E_MAX_FEC_50X];
u32 fec_mode_active;
u32 hw_mtu_msb;
+ s32 hw_val_temp[MLX5_MAX_TEMPERATURE];
+ u32 hw_num_temp;
};
struct mlx5e_cq {
@@ -1199,6 +1201,7 @@ void mlx5e_update_sq_inline(struct mlx5e_sq *sq);
void mlx5e_refresh_sq_inline(struct mlx5e_priv *priv);
int mlx5e_update_buf_lossy(struct mlx5e_priv *priv);
int mlx5e_fec_update(struct mlx5e_priv *priv);
+int mlx5e_hw_temperature_update(struct mlx5e_priv *priv);
if_snd_tag_alloc_t mlx5e_ul_snd_tag_alloc;
if_snd_tag_modify_t mlx5e_ul_snd_tag_modify;
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c Mon Apr 27 14:03:24 2020
(r360376)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_ethtool.c Mon Apr 27 14:35:39 2020
(r360377)
@@ -821,6 +821,65 @@ mlx5e_cable_length_handler(SYSCTL_HANDLER_ARGS)
return (error);
}
+static int
+mlx5e_hw_temperature_handler(SYSCTL_HANDLER_ARGS)
+{
+ struct mlx5e_priv *priv = arg1;
+ int err;
+
+ PRIV_LOCK(priv);
+ err = SYSCTL_OUT(req, priv->params_ethtool.hw_val_temp,
+ sizeof(priv->params_ethtool.hw_val_temp[0]) *
+ priv->params_ethtool.hw_num_temp);
+ if (err == 0 && req->newptr != NULL)
+ err = EOPNOTSUPP;
+ PRIV_UNLOCK(priv);
+ return (err);
+}
+
+int
+mlx5e_hw_temperature_update(struct mlx5e_priv *priv)
+{
+ int err;
+ u32 x;
+
+ if (priv->params_ethtool.hw_num_temp == 0) {
+ u32 out_cap[MLX5_ST_SZ_DW(mtcap)] = {};
+ const int sz_cap = MLX5_ST_SZ_BYTES(mtcap);
+ u32 value;
+
+ err = -mlx5_core_access_reg(priv->mdev, NULL, 0, out_cap,
sz_cap,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTCAP, 0, 0);
+ if (err)
+ goto done;
+ value = MLX5_GET(mtcap, out_cap, sensor_count);
+ if (value == 0)
+ return (0);
+ if (value > MLX5_MAX_TEMPERATURE)
+ value = MLX5_MAX_TEMPERATURE;
+ /* update number of temperature sensors */
+ priv->params_ethtool.hw_num_temp = value;
+ }
+
+ for (x = 0; x != priv->params_ethtool.hw_num_temp; x++) {
+ u32 out_sensor[MLX5_ST_SZ_DW(mtmp_reg)] = {};
+ const int sz_sensor = MLX5_ST_SZ_BYTES(mtmp_reg);
+
+ MLX5_SET(mtmp_reg, out_sensor, sensor_index, x);
+
+ err = -mlx5_core_access_reg(priv->mdev, out_sensor, sz_sensor,
+ out_sensor, sz_sensor,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTMP, 0, 0);
+ if (err)
+ goto done;
+ /* convert from 0.125 celcius to millicelcius */
+ priv->params_ethtool.hw_val_temp[x] =
+ (s16)MLX5_GET(mtmp_reg, out_sensor, temperature) * 125;
+ }
+done:
+ return (err);
+}
+
#define MLX5_PARAM_OFFSET(n) \
__offsetof(struct mlx5e_priv, params_ethtool.n)
@@ -1562,5 +1621,13 @@ mlx5e_create_ethtool(struct mlx5e_priv *priv)
CTLTYPE_UINT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
priv, 0, mlx5e_cable_length_handler, "IU",
"Set cable length in meters for xoff threshold
calculation");
+ }
+
+ if (mlx5e_hw_temperature_update(priv) == 0) {
+ SYSCTL_ADD_PROC(&priv->sysctl_ctx,
SYSCTL_CHILDREN(priv->sysctl_ifnet),
+ OID_AUTO, "hw_temperature",
+ CTLTYPE_S32 | CTLFLAG_RD | CTLFLAG_MPSAFE,
+ priv, 0, mlx5e_hw_temperature_handler, "I",
+ "HW temperature in millicelcius");
}
}
Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c Mon Apr 27 14:03:24 2020
(r360376)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c Mon Apr 27 14:35:39 2020
(r360377)
@@ -1042,6 +1042,15 @@ free_out:
mlx5_en_err(priv->ifp,
"Updating FEC failed: %d\n", error);
}
+
+ /* Update temperature, if any */
+ if (priv->params_ethtool.hw_num_temp != 0) {
+ error = mlx5e_hw_temperature_update(priv);
+ if (error != 0 && error != EOPNOTSUPP) {
+ mlx5_en_err(priv->ifp,
+ "Updating temperature failed: %d\n", error);
+ }
+ }
}
static void
Modified: head/sys/dev/mlx5/mlx5_ifc.h
==============================================================================
--- head/sys/dev/mlx5/mlx5_ifc.h Mon Apr 27 14:03:24 2020
(r360376)
+++ head/sys/dev/mlx5/mlx5_ifc.h Mon Apr 27 14:35:39 2020
(r360377)
@@ -10607,4 +10607,163 @@ struct mlx5_ifc_mfrl_reg_bits {
u8 reset_level[0x8];
};
+enum {
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTCAP = 0x9009,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTECR = 0x9109,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTMP = 0x900a,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTWE = 0x900b,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTBR = 0x900f,
+ MLX5_ACCESS_REG_SUMMARY_CTRL_ID_MTEWE = 0x910b,
+ MLX5_MAX_TEMPERATURE = 16,
+};
+
+struct mlx5_ifc_mtbr_temp_record_bits {
+ u8 max_temperature[0x10];
+ u8 temperature[0x10];
+};
+
+struct mlx5_ifc_mtbr_reg_bits {
+ u8 reserved_at_0[0x14];
+ u8 base_sensor_index[0xc];
+
+ u8 reserved_at_20[0x18];
+ u8 num_rec[0x8];
+
+ u8 reserved_at_40[0x40];
+
+ struct mlx5_ifc_mtbr_temp_record_bits
temperature_record[MLX5_MAX_TEMPERATURE];
+};
+
+struct mlx5_ifc_mtbr_reg_ext_bits {
+ u8 reserved_at_0[0x14];
+ u8 base_sensor_index[0xc];
+
+ u8 reserved_at_20[0x18];
+ u8 num_rec[0x8];
+
+ u8 reserved_at_40[0x40];
+
+ struct mlx5_ifc_mtbr_temp_record_bits
temperature_record[MLX5_MAX_TEMPERATURE];
+};
+
+struct mlx5_ifc_mtcap_bits {
+ u8 reserved_at_0[0x19];
+ u8 sensor_count[0x7];
+
+ u8 reserved_at_20[0x19];
+ u8 internal_sensor_count[0x7];
+
+ u8 sensor_map[0x40];
+};
+
+struct mlx5_ifc_mtcap_ext_bits {
+ u8 reserved_at_0[0x19];
+ u8 sensor_count[0x7];
+
+ u8 reserved_at_20[0x20];
+
+ u8 sensor_map[0x40];
+};
+
+struct mlx5_ifc_mtecr_bits {
+ u8 reserved_at_0[0x4];
+ u8 last_sensor[0xc];
+ u8 reserved_at_10[0x4];
+ u8 sensor_count[0xc];
+
+ u8 reserved_at_20[0x19];
+ u8 internal_sensor_count[0x7];
+
+ u8 sensor_map_0[0x20];
+
+ u8 reserved_at_60[0x2a0];
+};
+
+struct mlx5_ifc_mtecr_ext_bits {
+ u8 reserved_at_0[0x4];
+ u8 last_sensor[0xc];
+ u8 reserved_at_10[0x4];
+ u8 sensor_count[0xc];
+
+ u8 reserved_at_20[0x20];
+
+ u8 sensor_map_0[0x20];
+
+ u8 reserved_at_60[0x2a0];
+};
+
+struct mlx5_ifc_mtewe_bits {
+ u8 reserved_at_0[0x4];
+ u8 last_sensor[0xc];
+ u8 reserved_at_10[0x4];
+ u8 sensor_count[0xc];
+
+ u8 sensor_warning_0[0x20];
+
+ u8 reserved_at_40[0x2a0];
+};
+
+struct mlx5_ifc_mtewe_ext_bits {
+ u8 reserved_at_0[0x4];
+ u8 last_sensor[0xc];
+ u8 reserved_at_10[0x4];
+ u8 sensor_count[0xc];
+
+ u8 sensor_warning_0[0x20];
+
+ u8 reserved_at_40[0x2a0];
+};
+
+struct mlx5_ifc_mtmp_bits {
+ u8 reserved_at_0[0x14];
+ u8 sensor_index[0xc];
+
+ u8 reserved_at_20[0x10];
+ u8 temperature[0x10];
+
+ u8 mte[0x1];
+ u8 mtr[0x1];
+ u8 reserved_at_42[0xe];
+ u8 max_temperature[0x10];
+
+ u8 tee[0x2];
+ u8 reserved_at_62[0xe];
+ u8 temperature_threshold_hi[0x10];
+
+ u8 reserved_at_80[0x10];
+ u8 temperature_threshold_lo[0x10];
+
+ u8 reserved_at_a0[0x20];
+
+ u8 sensor_name_hi[0x20];
+
+ u8 sensor_name_lo[0x20];
+};
+
+struct mlx5_ifc_mtmp_ext_bits {
+ u8 reserved_at_0[0x14];
+ u8 sensor_index[0xc];
+
+ u8 reserved_at_20[0x10];
+ u8 temperature[0x10];
+
+ u8 mte[0x1];
+ u8 mtr[0x1];
+ u8 reserved_at_42[0xe];
+ u8 max_temperature[0x10];
+
+ u8 tee[0x2];
+ u8 reserved_at_62[0xe];
+ u8 temperature_threshold_hi[0x10];
+
+ u8 reserved_at_80[0x10];
+ u8 temperature_threshold_lo[0x10];
+
+ u8 reserved_at_a0[0x20];
+
+ u8 sensor_name_hi[0x20];
+
+ u8 sensor_name_lo[0x20];
+};
+
#endif /* MLX5_IFC_H */
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