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ath9k: add MCS rate index back to debufs rcstat

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Speaking of 802.11n rates in terms of Mbps doesn't really developers
and is just useful for users. To aid debugging add the MCS index back
and an HT20/HT40 mode.

New screenshot:

    HT    MCS   Rate    Success    Retries   XRetries        PER
                6.0:          0          0          0          0
                9.0:          0          0          0          0
               12.0:         26        260          0         49
               18.0:         80        804          2         58
               24.0:          0          0          0          0
               36.0:          0          0          0          0
               48.0:          0          0          0          0
               54.0:          0          0          0          0
  HT20      0   6.5:       1368      13660          0         48
  HT20      1  13.0:          0          0          0          0
  HT20      2  19.5:          0          0          0          0
  HT20      3  26.0:          0          0          0          0
  HT20      4  39.0:          0          0          0          0
  HT20      5  52.0:         55        578         14         43
  HT20      6  58.5:         29        306          8         69
  HT20      7  65.0:         21        210          0         67
  HT20      8  13.0:         21        210          0         56
  HT20      9  26.0:          0          0          0          0
  HT20     10  39.0:          0          0          0          0
  HT20     11  52.0:          0          0          0          0
  HT20     12  78.0:          0          0          0          0
  HT20     13 104.0:          0          0          0          0
  HT20     14 117.0:          0          0          0          0
  HT20     15 130.0:         27        290         10         55
  HT40      0  13.5:         79        687         16         17
  HT40      1  27.5:         60        409         10         17
  HT40      2  40.5:         56        381         21         25
  HT40      3  54.0:         44        302         21         18
  HT40      4  81.5:         19        171          2         14
  HT40      5 108.0:          0          0          0          0
  HT40      6 121.5:          0          0          0          0
  HT40      7 135.0:          0          0          0          0
  HT40      7 150.0:          0          0          0          0
  HT40      8  27.0:          0          0          0          0
  HT40      9  54.0:          0          0          0          0
  HT40     10  81.0:          0          0          0          0
  HT40     11 108.0:         11        100          0         18
  HT40     12 162.0:         23        200          0         22
  HT40     13 216.0:         61        580          0         35
  HT40     14 243.0:         37        271          0         66
  HT40     15 270.0:         65        217          2         73
  HT40     15 300.0:          0          0          0          0

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-12-07 12:38:41 -05:00 committed by John W. Linville
parent 265dc7f096
commit c755ad34ab
2 changed files with 36 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/net/wireless/ath/ath9k/debug.c
View File

@ -289,23 +289,49 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
if (sc->cur_rate_table == NULL)
return 0;
max = 80 + sc->cur_rate_table->rate_cnt * 64;
max = 80 + sc->cur_rate_table->rate_cnt * 1024;
buf = kmalloc(max + 1, GFP_KERNEL);
if (buf == NULL)
return 0;
buf[max] = 0;
len += sprintf(buf, "%5s %15s %8s %9s %3s\n\n", "Rate", "Success",
"Retries", "XRetries", "PER");
len += sprintf(buf, "%6s %6s %6s "
"%10s %10s %10s %10s\n",
"HT", "MCS", "Rate",
"Success", "Retries", "XRetries", "PER");
for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
char mcs[5];
char htmode[5];
int used_mcs = 0, used_htmode = 0;
if (WLAN_RC_PHY_HT(sc->cur_rate_table->info[i].phy)) {
used_mcs = snprintf(mcs, 5, "%d",
sc->cur_rate_table->info[i].ratecode);
if (WLAN_RC_PHY_40(sc->cur_rate_table->info[i].phy))
used_htmode = snprintf(htmode, 5, "HT40");
else if (WLAN_RC_PHY_20(sc->cur_rate_table->info[i].phy))
used_htmode = snprintf(htmode, 5, "HT20");
else
used_htmode = snprintf(htmode, 5, "????");
}
mcs[used_mcs] = '\0';
htmode[used_htmode] = '\0';
len += snprintf(buf + len, max - len,
"%3u.%d: %8u %8u %8u %8u\n", ratekbps / 1000,
(ratekbps % 1000) / 100, stats->success,
stats->retries, stats->xretries,
"%6s %6s %3u.%d: "
"%10u %10u %10u %10u\n",
htmode,
mcs,
ratekbps / 1000,
(ratekbps % 1000) / 100,
stats->success,
stats->retries,
stats->xretries,
stats->per);
}

4
drivers/net/wireless/ath/ath9k/rc.h
View File

@ -57,6 +57,10 @@ enum {
|| (_phy == WLAN_RC_PHY_HT_40_DS) \
|| (_phy == WLAN_RC_PHY_HT_20_DS_HGI) \
|| (_phy == WLAN_RC_PHY_HT_40_DS_HGI))
#define WLAN_RC_PHY_20(_phy) ((_phy == WLAN_RC_PHY_HT_20_SS) \
|| (_phy == WLAN_RC_PHY_HT_20_DS) \
|| (_phy == WLAN_RC_PHY_HT_20_SS_HGI) \
|| (_phy == WLAN_RC_PHY_HT_20_DS_HGI))
#define WLAN_RC_PHY_40(_phy) ((_phy == WLAN_RC_PHY_HT_40_SS) \
|| (_phy == WLAN_RC_PHY_HT_40_DS) \
|| (_phy == WLAN_RC_PHY_HT_40_SS_HGI) \