From: Wey-Yi Guy Date: Fri, 15 Jan 2010 21:43:35 +0000 (-0800) Subject: iwlwifi: add num_of_sos_stats to statistics counter X-Git-Tag: v2.6.34-rc1~233^2~49^2~237 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=11fc524941248dc717f1af5dfa844eceb7c0217f;p=profile%2Fivi%2Fkernel-x86-ivi.git iwlwifi: add num_of_sos_stats to statistics counter 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 Signed-off-by: Zhu Yi Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- 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;