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Commit 70a5f3bb authored by Hariprasad Shenai's avatar Hariprasad Shenai Committed by David S. Miller
Browse files

cxgb4: Add support in debugfs to display sensor information 



Dump out various chip sensor information. Currently Chip Temperature
and Core Voltage.

Signed-off-by: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bdb27482

drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c

+36 −0
Original line number Diff line number Diff line
@@ -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 },

drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h

+6 −0
Original line number Diff line number Diff line
@@ -1059,6 +1059,7 @@ enum fw_params_param_dev { 
	FW_PARAMS_PARAM_DEV_FWREV = 0x0B,

	FW_PARAMS_PARAM_DEV_TPREV = 0x0C,

	FW_PARAMS_PARAM_DEV_CF = 0x0D,

	FW_PARAMS_PARAM_DEV_DIAG = 0x11,

	FW_PARAMS_PARAM_DEV_MAXORDIRD_QP = 0x13, /* max supported QP IRD/ORD */

	FW_PARAMS_PARAM_DEV_MAXIRD_ADAPTER = 0x14, /* max supported adap IRD */

	FW_PARAMS_PARAM_DEV_ULPTX_MEMWRITE_DSGL = 0x17,
@@ -1122,6 +1123,11 @@ enum fw_params_param_dmaq { 
	FW_PARAMS_PARAM_DMAQ_EQ_DCBPRIO_ETH = 0x13,

};



enum fw_params_param_dev_diag {

	FW_PARAM_DEV_DIAG_TMP		= 0x00,

	FW_PARAM_DEV_DIAG_VDD		= 0x01,

};



enum fw_params_param_dev_fwcache {

	FW_PARAM_DEV_FWCACHE_FLUSH      = 0x00,

	FW_PARAM_DEV_FWCACHE_FLUSHINV   = 0x01,