diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-02-06 19:32:51 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-07 22:52:39 -0800 |
| commit | 70a5f3bb5f80d9bc7aa746816b32ab17e3c56029 (patch) | |
| tree | ec4977ff0e1bc654fd467ad9ce6124eea365c6e4 /drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | |
| parent | bdb27482026aea65e63c4474ef6235789636a87e (diff) | |
| download | linux-70a5f3bb5f80d9bc7aa746816b32ab17e3c56029.tar.bz2 | |
cxgb4: Add support in debugfs to display sensor information
Dump out various chip sensor information. Currently Chip Temperature
and Core Voltage.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 61c000a08ebb..35ec23073c7f 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -813,6 +813,41 @@ static const struct file_operations mps_tcam_debugfs_fops = { .release = seq_release, }; +/* Display various sensor information. + */ +static int sensors_show(struct seq_file *seq, void *v) +{ + struct adapter *adap = seq->private; + u32 param[7], val[7]; + int ret; + + /* Note that if the sensors haven't been initialized and turned on + * we'll get values of 0, so treat those as "<unknown>" ... + */ + param[0] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | + FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) | + FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_TMP)); + param[1] = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_DEV) | + FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_DEV_DIAG) | + FW_PARAMS_PARAM_Y_V(FW_PARAM_DEV_DIAG_VDD)); + ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, + param, val); + + if (ret < 0 || val[0] == 0) + seq_puts(seq, "Temperature: <unknown>\n"); + else + seq_printf(seq, "Temperature: %dC\n", val[0]); + + if (ret < 0 || val[1] == 0) + seq_puts(seq, "Core VDD: <unknown>\n"); + else + seq_printf(seq, "Core VDD: %dmV\n", val[1]); + + return 0; +} + +DEFINE_SIMPLE_DEBUGFS_FILE(sensors); + #if IS_ENABLED(CONFIG_IPV6) static int clip_tbl_open(struct inode *inode, struct file *file) { @@ -1584,6 +1619,7 @@ int t4_setup_debugfs(struct adapter *adap) { "obq_ulp3", &cim_obq_fops, S_IRUSR, 3 }, { "obq_sge", &cim_obq_fops, S_IRUSR, 4 }, { "obq_ncsi", &cim_obq_fops, S_IRUSR, 5 }, + { "sensors", &sensors_debugfs_fops, S_IRUSR, 0 }, { "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 }, #if IS_ENABLED(CONFIG_IPV6) { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 }, |