From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vadim Pasternak Subject: [PATCH v0 02/12] mlxsw: reg: Add MTBR register Date: Thu, 21 Jun 2018 15:27:56 +0000 Message-ID: <1529594883-20619-3-git-send-email-vadimp@mellanox.com> References: <1529594883-20619-1-git-send-email-vadimp@mellanox.com> Cc: netdev@vger.kernel.org, jiri@resnulli.us, Vadim Pasternak To: davem@davemloft.net Return-path: Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:54625 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933256AbeFUNcZ (ORCPT ); Thu, 21 Jun 2018 09:32:25 -0400 In-Reply-To: <1529594883-20619-1-git-send-email-vadimp@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: Add MTBR (Management Temperature Bulk Register), which is used for port temperature reading in a bulk mode. Signed-off-by: Vadim Pasternak Acked-by: Jiri Pirko --- drivers/net/ethernet/mellanox/mlxsw/reg.h | 69 +++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 6a41c48..cfe6bde 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -6703,6 +6703,74 @@ static inline void mlxsw_reg_mtmp_unpack(char *payload, unsigned int *p_temp, mlxsw_reg_mtmp_sensor_name_memcpy_from(payload, sensor_name); } +/* MTBR - Management Temperature Bulk Register + * ------------------------------------------- + * This register is used for bulk temperature reading. + */ +#define MLXSW_REG_MTBR_ID 0x900F +#define MLXSW_REG_MTBR_LEN 0xCC +#define MLXSW_REG_MTBR_REC_MAX_COUNT 47 + +MLXSW_REG_DEFINE(mtbr, MLXSW_REG_MTBR_ID, MLXSW_REG_MTBR_LEN); + +/* reg_mtbr_base_sensor_index + * Base sensors index to access (0 - ASIC sensor, 1-63 - ambient sensors, + * 64-127 are mapped to the SFP+/QSFP modules sequentially). + * Access: Index + */ +MLXSW_ITEM32(reg, mtbr, base_sensor_index, 0x00, 0, 7); + +/* reg_mtbr_num_rec + * Request: Number of records to read + * Response: Number of records read + * See above description for more details. + * Ranges 0..64 + * Access: RW + */ +MLXSW_ITEM32(reg, mtbr, num_rec, 0x04, 0, 8); + +/* reg_mtbr_temp + * Temperature reading from the sensor. Reading is in 0.125 Celsius + * degrees units. + * Access: RO + */ +MLXSW_ITEM32_INDEXED(reg, mtbr, temp, 0x10, 0, 16, 0x04, 0x00, false); + +/* reg_mtbr_max_temp + * The highest measured temperature from the sensor. + * When the bit mte is cleared, the field max_temperature is reserved. + * Access: RO + */ +MLXSW_ITEM32_INDEXED(reg, mtbr, max_temp, 0x10, 16, 16, 0x04, 0x00, false); + +static inline void mlxsw_reg_mtbr_pack(char *payload, u8 base_sensor_index, + u8 num_rec) +{ + MLXSW_REG_ZERO(mtbr, payload); + mlxsw_reg_mtbr_base_sensor_index_set(payload, base_sensor_index); + mlxsw_reg_mtbr_num_rec_set(payload, num_rec); +} + +/* Error codes from temperatute reading */ +enum mlxsw_reg_mtbr_temp_status { + MLXSW_REG_MTBR_NO_CONN = 0x8000, + MLXSW_REG_MTBR_NO_TEMP_SENS = 0x8001, + MLXSW_REG_MTBR_INDEX_NA = 0x8002, + MLXSW_REG_MTBR_BAD_SENS_INFO = 0x8003, +}; + +/* Base index for reading ports temperature */ +#define MLXSW_REG_MTBR_BASE_PORT_INDEX 64 + +static inline void mlxsw_reg_mtbr_temp_unpack(char *payload, int rec_index, + u16 *p_temp, u16 *p_max_temp) +{ + if (p_temp) + *p_temp = mlxsw_reg_mtbr_temp_get(payload, rec_index); + if (p_max_temp) + *p_max_temp = mlxsw_reg_mtbr_max_temp_get(payload, rec_index); +} + /* MCIA - Management Cable Info Access * ----------------------------------- * MCIA register is used to access the SFP+ and QSFP connector's EPROM. @@ -7945,6 +8013,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = { MLXSW_REG(mfsc), MLXSW_REG(mfsm), MLXSW_REG(mfsl), + MLXSW_REG(mtbr), MLXSW_REG(mtcap), MLXSW_REG(mtmp), MLXSW_REG(mcia), -- 2.1.4