From: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
When uCode detects number of beacon missed consecutively above the
internal missed beacon threshold (set by uCode), it will reset and
re-tune the radio in order to get out of bad PHY state.
This "num_of_sos_states" counter monitors number of time uCode
encounters this bad condition and has to re-tune the radio.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@xxxxxxxxx>
Signed-off-by: Zhu Yi <yi.zhu@xxxxxxxxx>
Signed-off-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/iwl-commands.h | 7 ++++++-
drivers/net/wireless/iwlwifi/iwl-debugfs.c | 8 +++++++-
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 3320cce..8dc34a3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -3095,7 +3095,12 @@ struct statistics_general {
__le32 ttl_timestamp;
struct statistics_div div;
__le32 rx_enable_counter;
- __le32 reserved1;
+ /*
+ * num_of_sos_states:
+ * count the number of times we have to re-tune
+ * in order to get out of bad PHY status
+ */
+ __le32 num_of_sos_states;
__le32 reserved2;
__le32 reserved3;
} __attribute__ ((packed));
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 2264cbd..19c7fab 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1728,7 +1728,7 @@ static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
struct iwl_priv *priv = file->private_data;
int pos = 0;
char *buf;
- int bufsz = sizeof(struct statistics_general) * 8 + 250;
+ int bufsz = sizeof(struct statistics_general) * 10 + 300;
ssize_t ret;
struct statistics_general *general, *accum_general;
struct statistics_general *delta_general, *max_general;
@@ -1828,6 +1828,12 @@ static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
accum_general->rx_enable_counter,
delta_general->rx_enable_counter,
max_general->rx_enable_counter);
+ pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
+ "num_of_sos_states:",
+ le32_to_cpu(general->num_of_sos_states),
+ accum_general->num_of_sos_states,
+ delta_general->num_of_sos_states,
+ max_general->num_of_sos_states);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
kfree(buf);
return ret;
--
1.6.3.3
--
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