From: Kalesh AP <kalesh-anakkur.purayil@xxxxxxxxxxxx> HWRM_TEMP_MONITOR_QUERY response now indicates various threshold temperatures. Expose these threshold temperatures through the hwmon sysfs using this mapping: hwmon_temp_max : bp->warn_thresh_temp hwmon_temp_crit : bp->crit_thresh_temp hwmon_temp_emergency : bp->fatal_thresh_temp hwmon_temp_max_alarm : temp >= bp->warn_thresh_temp hwmon_temp_crit_alarm : temp >= bp->crit_thresh_temp hwmon_temp_emergency_alarm : temp >= bp->fatal_thresh_temp Link: https://lore.kernel.org/netdev/20230815045658.80494-12-michael.chan@xxxxxxxxxxxx/ Cc: Jean Delvare <jdelvare@xxxxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Cc: linux-hwmon@xxxxxxxxxxxxxxx Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@xxxxxxxxxxxx> Signed-off-by: Michael Chan <michael.chan@xxxxxxxxxxxx> --- v2: bnxt_hwrm_temp_query() now stores the static threshold values once. Use new hwmon temperature mappings shown above and remove hwmon_temp_lcrit. --- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 7 +++ .../net/ethernet/broadcom/bnxt/bnxt_hwmon.c | 57 ++++++++++++++++--- 2 files changed, 57 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 84cbcfa61bc1..43a07d84f815 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -2013,6 +2013,7 @@ struct bnxt { #define BNXT_FW_CAP_RING_MONITOR BIT_ULL(30) #define BNXT_FW_CAP_DBG_QCAPS BIT_ULL(31) #define BNXT_FW_CAP_PTP BIT_ULL(32) + #define BNXT_FW_CAP_THRESHOLD_TEMP_SUPPORTED BIT_ULL(33) u32 fw_dbg_cap; @@ -2185,7 +2186,13 @@ struct bnxt { struct bnxt_tc_info *tc_info; struct list_head tc_indr_block_list; struct dentry *debugfs_pdev; +#ifdef CONFIG_BNXT_HWMON struct device *hwmon_dev; + u8 warn_thresh_temp; + u8 crit_thresh_temp; + u8 fatal_thresh_temp; + u8 shutdown_thresh_temp; +#endif enum board_idx board_idx; }; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c index 05e3d75f3c43..6a2cad5cc159 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_hwmon.c @@ -32,8 +32,16 @@ static int bnxt_hwrm_temp_query(struct bnxt *bp, u8 *temp) if (rc) goto drop_req; - *temp = resp->temp; - + if (temp) { + *temp = resp->temp; + } else if (resp->flags & + TEMP_MONITOR_QUERY_RESP_FLAGS_THRESHOLD_VALUES_AVAILABLE) { + bp->fw_cap |= BNXT_FW_CAP_THRESHOLD_TEMP_SUPPORTED; + bp->warn_thresh_temp = resp->warn_threshold; + bp->crit_thresh_temp = resp->critical_threshold; + bp->fatal_thresh_temp = resp->fatal_threshold; + bp->shutdown_thresh_temp = resp->shutdown_threshold; + } drop_req: hwrm_req_drop(bp, req); return rc; @@ -42,12 +50,23 @@ static int bnxt_hwrm_temp_query(struct bnxt *bp, u8 *temp) static umode_t bnxt_hwmon_is_visible(const void *_data, enum hwmon_sensor_types type, u32 attr, int channel) { + const struct bnxt *bp = _data; + if (type != hwmon_temp) return 0; switch (attr) { case hwmon_temp_input: return 0444; + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_emergency: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_emergency_alarm: + if (!(bp->fw_cap & BNXT_FW_CAP_THRESHOLD_TEMP_SUPPORTED)) + return 0; + return 0444; default: return 0; } @@ -66,13 +85,39 @@ static int bnxt_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 if (!rc) *val = temp * 1000; return rc; + case hwmon_temp_max: + *val = bp->warn_thresh_temp * 1000; + return 0; + case hwmon_temp_crit: + *val = bp->crit_thresh_temp * 1000; + return 0; + case hwmon_temp_emergency: + *val = bp->fatal_thresh_temp * 1000; + return 0; + case hwmon_temp_max_alarm: + rc = bnxt_hwrm_temp_query(bp, &temp); + if (!rc) + *val = temp >= bp->warn_thresh_temp; + return rc; + case hwmon_temp_crit_alarm: + rc = bnxt_hwrm_temp_query(bp, &temp); + if (!rc) + *val = temp >= bp->crit_thresh_temp; + return rc; + case hwmon_temp_emergency_alarm: + rc = bnxt_hwrm_temp_query(bp, &temp); + if (!rc) + *val = temp >= bp->fatal_thresh_temp; + return rc; default: return -EOPNOTSUPP; } } static const struct hwmon_channel_info *bnxt_hwmon_info[] = { - HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT), + HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | + HWMON_T_EMERGENCY | HWMON_T_MAX_ALARM | + HWMON_T_CRIT_ALARM | HWMON_T_EMERGENCY_ALARM), NULL }; @@ -96,13 +141,11 @@ void bnxt_hwmon_uninit(struct bnxt *bp) void bnxt_hwmon_init(struct bnxt *bp) { - struct hwrm_temp_monitor_query_input *req; struct pci_dev *pdev = bp->pdev; int rc; - rc = hwrm_req_init(bp, req, HWRM_TEMP_MONITOR_QUERY); - if (!rc) - rc = hwrm_req_send_silent(bp, req); + /* temp1_xxx is only sensor, ensure not registered if it will fail */ + rc = bnxt_hwrm_temp_query(bp, NULL); if (rc == -EACCES || rc == -EOPNOTSUPP) { bnxt_hwmon_uninit(bp); return; -- 2.30.1
<<attachment: smime.p7s>>
