80 lines
2.8 KiB
Diff
80 lines
2.8 KiB
Diff
From patchwork Mon Oct 30 09:51:18 2017
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: [net] mlxsw: reg: Add high and low temperature thresholds
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X-Patchwork-Submitter: Jiri Pirko <jiri@resnulli.us>
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X-Patchwork-Id: 831938
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X-Patchwork-Delegate: davem@davemloft.net
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Message-Id: <20171030095118.9098-1-jiri@resnulli.us>
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To: netdev@vger.kernel.org
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Cc: davem@davemloft.net, idosch@mellanox.com, mlxsw@mellanox.com
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Date: Mon, 30 Oct 2017 10:51:18 +0100
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From: Jiri Pirko <jiri@resnulli.us>
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List-Id: <netdev.vger.kernel.org>
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From: Ido Schimmel <idosch@mellanox.com>
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The ASIC has the ability to generate events whenever a sensor indicates
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the temperature goes above or below its high or low thresholds,
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respectively.
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In new firmware versions the firmware enforces a minimum of 5
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degrees Celsius difference between both thresholds. Make the driver
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conform to this requirement.
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Note that this is required even when the events are disabled, as in
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certain systems interrupts are generated via GPIO based on these
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thresholds.
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Fixes: 85926f877040 ("mlxsw: reg: Add definition of temperature management registers")
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Signed-off-by: Ido Schimmel <idosch@mellanox.com>
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Signed-off-by: Jiri Pirko <jiri@mellanox.com>
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---
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drivers/net/ethernet/mellanox/mlxsw/reg.h | 25 +++++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
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index 4afc848..5acfbe5 100644
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--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
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+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
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@@ -5827,6 +5827,29 @@ MLXSW_ITEM32(reg, mtmp, mtr, 0x08, 30, 1);
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*/
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MLXSW_ITEM32(reg, mtmp, max_temperature, 0x08, 0, 16);
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+/* reg_mtmp_tee
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+ * Temperature Event Enable.
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+ * 0 - Do not generate event
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+ * 1 - Generate event
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+ * 2 - Generate single event
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+ * Access: RW
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+ */
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+MLXSW_ITEM32(reg, mtmp, tee, 0x0C, 30, 2);
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+
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+#define MLXSW_REG_MTMP_THRESH_HI 0x348 /* 105 Celsius */
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+
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+/* reg_mtmp_temperature_threshold_hi
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+ * High threshold for Temperature Warning Event. In 0.125 Celsius.
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+ * Access: RW
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+ */
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+MLXSW_ITEM32(reg, mtmp, temperature_threshold_hi, 0x0C, 0, 16);
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+
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+/* reg_mtmp_temperature_threshold_lo
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+ * Low threshold for Temperature Warning Event. In 0.125 Celsius.
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+ * Access: RW
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+ */
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+MLXSW_ITEM32(reg, mtmp, temperature_threshold_lo, 0x10, 0, 16);
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+
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#define MLXSW_REG_MTMP_SENSOR_NAME_SIZE 8
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/* reg_mtmp_sensor_name
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@@ -5843,6 +5866,8 @@ static inline void mlxsw_reg_mtmp_pack(char *payload, u8 sensor_index,
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mlxsw_reg_mtmp_sensor_index_set(payload, sensor_index);
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mlxsw_reg_mtmp_mte_set(payload, max_temp_enable);
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mlxsw_reg_mtmp_mtr_set(payload, max_temp_reset);
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+ mlxsw_reg_mtmp_temperature_threshold_hi_set(payload,
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+ MLXSW_REG_MTMP_THRESH_HI);
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}
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static inline void mlxsw_reg_mtmp_unpack(char *payload, unsigned int *p_temp,
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