static int
minstrel_ht_stats_open(struct inode *inode, struct file *file)
{
struct minstrel_ht_sta_priv *msp = inode->i_private;
struct minstrel_ht_sta *mi = &msp->ht;
struct minstrel_debugfs_info *ms;
unsigned int i;
int ret;
char *p;
if (!msp->is_ht) {
inode->i_private = &msp->legacy;
ret = minstrel_stats_open(inode, file);
inode->i_private = msp;
return ret;
}
ms = kmalloc(32768, GFP_KERNEL);
if (!ms)
return -ENOMEM;
file->private_data = ms;
p = ms->buf;
p += sprintf(p, "\n");
p += sprintf(p, " best ____________rate__________ "
"______statistics______ ________last_______ "
"______sum-of________\n");
p += sprintf(p, "mode guard # rate [name idx airtime max_tp] "
"[ ø(tp) ø(prob) sd(prob)] [prob.|retry|suc|att] [#success | "
"#attempts]\n");
p = minstrel_ht_stats_dump(mi, MINSTREL_CCK_GROUP, p);
for (i = 0; i < MINSTREL_CCK_GROUP; i++)
p = minstrel_ht_stats_dump(mi, i, p);
for (i++; i < ARRAY_SIZE(mi->groups); i++)
p = minstrel_ht_stats_dump(mi, i, p);
p += sprintf(p, "\nTotal packet count:: ideal %d "
"lookaround %d\n",
max(0, (int) mi->total_packets - (int) mi->sample_packets),
mi->sample_packets);
p += sprintf(p, "Average # of aggregated frames per A-MPDU: %d.%d\n",
MINSTREL_TRUNC(mi->avg_ampdu_len),
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
ms->len = p - ms->buf;
WARN_ON(ms->len + sizeof(*ms) > 32768);
return nonseekable_open(inode, file);
}
static int
minstrel_ht_stats_open(struct inode *inode, struct file *file)
{
struct minstrel_ht_sta_priv *msp = inode->i_private;
struct minstrel_ht_sta *mi = &msp->ht;
struct minstrel_debugfs_info *ms;
unsigned int i;
unsigned int max_mcs = MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS;
char *p;
int ret;
if (!msp->is_ht) {
inode->i_private = &msp->legacy;
ret = minstrel_stats_open(inode, file);
inode->i_private = msp;
return ret;
}
ms = kmalloc(sizeof(*ms) + 8192, GFP_KERNEL);
if (!ms)
return -ENOMEM;
file->private_data = ms;
p = ms->buf;
p += sprintf(p, "type rate throughput ewma prob "
"this prob retry this succ/attempt success attempts\n");
p = minstrel_ht_stats_dump(mi, max_mcs, p);
for (i = 0; i < max_mcs; i++)
p = minstrel_ht_stats_dump(mi, i, p);
p += sprintf(p, "\nTotal packet count:: ideal %d "
"lookaround %d\n",
max(0, (int) mi->total_packets - (int) mi->sample_packets),
mi->sample_packets);
p += sprintf(p, "Average A-MPDU length: %d.%d\n",
MINSTREL_TRUNC(mi->avg_ampdu_len),
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
ms->len = p - ms->buf;
return nonseekable_open(inode, file);
}
static int
minstrel_ht_stats_open(struct inode *inode, struct file *file)
{
struct minstrel_ht_sta_priv *msp = inode->i_private;
struct minstrel_ht_sta *mi = &msp->ht;
struct minstrel_debugfs_info *ms;
unsigned int i, j, tp, prob, eprob;
char *p;
int ret;
if (!msp->is_ht) {
inode->i_private = &msp->legacy;
ret = minstrel_stats_open(inode, file);
inode->i_private = msp;
return ret;
}
ms = kmalloc(sizeof(*ms) + 8192, GFP_KERNEL);
if (!ms)
return -ENOMEM;
file->private_data = ms;
p = ms->buf;
p += sprintf(p, "type rate throughput ewma prob this prob "
"this succ/attempt success attempts\n");
for (i = 0; i < MINSTREL_MAX_STREAMS * MINSTREL_STREAM_GROUPS; i++) {
char htmode = '2';
char gimode = 'L';
if (!mi->groups[i].supported)
continue;
if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
htmode = '4';
if (minstrel_mcs_groups[i].flags & IEEE80211_TX_RC_SHORT_GI)
gimode = 'S';
for (j = 0; j < MCS_GROUP_RATES; j++) {
struct minstrel_rate_stats *mr = &mi->groups[i].rates[j];
int idx = i * MCS_GROUP_RATES + j;
if (!(mi->groups[i].supported & BIT(j)))
continue;
p += sprintf(p, "HT%c0/%cGI ", htmode, gimode);
*(p++) = (idx == mi->max_tp_rate) ? 'T' : ' ';
*(p++) = (idx == mi->max_tp_rate2) ? 't' : ' ';
*(p++) = (idx == mi->max_prob_rate) ? 'P' : ' ';
p += sprintf(p, "MCS%-2u", (minstrel_mcs_groups[i].streams - 1) *
MCS_GROUP_RATES + j);
tp = mr->cur_tp / 10;
prob = MINSTREL_TRUNC(mr->cur_prob * 1000);
eprob = MINSTREL_TRUNC(mr->probability * 1000);
p += sprintf(p, " %6u.%1u %6u.%1u %6u.%1u "
"%3u(%3u) %8llu %8llu\n",
tp / 10, tp % 10,
eprob / 10, eprob % 10,
prob / 10, prob % 10,
mr->last_success,
mr->last_attempts,
(unsigned long long)mr->succ_hist,
(unsigned long long)mr->att_hist);
}
}
p += sprintf(p, "\nTotal packet count:: ideal %d "
"lookaround %d\n",
max(0, (int) mi->total_packets - (int) mi->sample_packets),
mi->sample_packets);
p += sprintf(p, "Average A-MPDU length: %d.%d\n",
MINSTREL_TRUNC(mi->avg_ampdu_len),
MINSTREL_TRUNC(mi->avg_ampdu_len * 10) % 10);
ms->len = p - ms->buf;
return nonseekable_open(inode, file);
}
