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authorArend van Spriel <arend@broadcom.com>2014-10-29 16:02:51 +0100
committerJohn W. Linville <linville@tuxdriver.com>2014-10-30 15:26:53 -0400
commit3fe33c4cec15c4dec7935c1f08811fab43343bf0 (patch)
tree23f29d096ba2846958d6b3d602de26816f418a97 /drivers/net/wireless
parent9146782b1bba3323ef492614402ab0805b597638 (diff)
brcmsmac: expose 802.11 core statistics in debugfs
The 802.11 statistics obtained from the device can be retrieved dumping the 'macstat' file in debugfs folder. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/brcm80211/brcmsmac/debug.c166
1 files changed, 133 insertions, 33 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/debug.c b/drivers/net/wireless/brcm80211/brcmsmac/debug.c
index a5d4add26f41..19740c1b1566 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/debug.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/debug.c
@@ -71,48 +71,148 @@ struct dentry *brcms_debugfs_get_devdir(struct brcms_pub *drvr)
}
static
-ssize_t brcms_debugfs_hardware_read(struct file *f, char __user *data,
- size_t count, loff_t *ppos)
+int brcms_debugfs_hardware_read(struct seq_file *s, void *data)
{
- char buf[128];
- int res;
- struct brcms_pub *drvr = f->private_data;
-
- /* only allow read from start */
- if (*ppos > 0)
- return 0;
-
- res = scnprintf(buf, sizeof(buf),
- "board vendor: %x\n"
- "board type: %x\n"
- "board revision: %x\n"
- "board flags: %x\n"
- "board flags2: %x\n"
- "firmware revision: %x\n",
- drvr->wlc->hw->d11core->bus->boardinfo.vendor,
- drvr->wlc->hw->d11core->bus->boardinfo.type,
- drvr->wlc->hw->boardrev,
- drvr->wlc->hw->boardflags,
- drvr->wlc->hw->boardflags2,
- drvr->wlc->ucode_rev
- );
-
- return simple_read_from_buffer(data, count, ppos, buf, res);
+ struct brcms_pub *drvr = s->private;
+
+ seq_printf(s, "board vendor: %x\n"
+ "board type: %x\n"
+ "board revision: %x\n"
+ "board flags: %x\n"
+ "board flags2: %x\n"
+ "firmware revision: %x\n",
+ drvr->wlc->hw->d11core->bus->boardinfo.vendor,
+ drvr->wlc->hw->d11core->bus->boardinfo.type,
+ drvr->wlc->hw->boardrev,
+ drvr->wlc->hw->boardflags,
+ drvr->wlc->hw->boardflags2,
+ drvr->wlc->ucode_rev);
+
+ return 0;
+}
+
+static int brcms_debugfs_macstat_read(struct seq_file *s, void *data)
+{
+ struct brcms_pub *drvr = s->private;
+ struct brcms_info *wl = drvr->ieee_hw->priv;
+ struct macstat stats;
+ int i;
+
+ spin_lock_bh(&wl->lock);
+ stats = *(drvr->wlc->core->macstat_snapshot);
+ spin_unlock_bh(&wl->lock);
+
+ seq_printf(s, "txallfrm: %d\n", stats.txallfrm);
+ seq_printf(s, "txrtsfrm: %d\n", stats.txrtsfrm);
+ seq_printf(s, "txctsfrm: %d\n", stats.txctsfrm);
+ seq_printf(s, "txackfrm: %d\n", stats.txackfrm);
+ seq_printf(s, "txdnlfrm: %d\n", stats.txdnlfrm);
+ seq_printf(s, "txbcnfrm: %d\n", stats.txbcnfrm);
+ seq_printf(s, "txfunfl[8]:");
+ for (i = 0; i < ARRAY_SIZE(stats.txfunfl); i++)
+ seq_printf(s, " %d", stats.txfunfl[i]);
+ seq_printf(s, "\ntxtplunfl: %d\n", stats.txtplunfl);
+ seq_printf(s, "txphyerr: %d\n", stats.txphyerr);
+ seq_printf(s, "pktengrxducast: %d\n", stats.pktengrxducast);
+ seq_printf(s, "pktengrxdmcast: %d\n", stats.pktengrxdmcast);
+ seq_printf(s, "rxfrmtoolong: %d\n", stats.rxfrmtoolong);
+ seq_printf(s, "rxfrmtooshrt: %d\n", stats.rxfrmtooshrt);
+ seq_printf(s, "rxinvmachdr: %d\n", stats.rxinvmachdr);
+ seq_printf(s, "rxbadfcs: %d\n", stats.rxbadfcs);
+ seq_printf(s, "rxbadplcp: %d\n", stats.rxbadplcp);
+ seq_printf(s, "rxcrsglitch: %d\n", stats.rxcrsglitch);
+ seq_printf(s, "rxstrt: %d\n", stats.rxstrt);
+ seq_printf(s, "rxdfrmucastmbss: %d\n", stats.rxdfrmucastmbss);
+ seq_printf(s, "rxmfrmucastmbss: %d\n", stats.rxmfrmucastmbss);
+ seq_printf(s, "rxcfrmucast: %d\n", stats.rxcfrmucast);
+ seq_printf(s, "rxrtsucast: %d\n", stats.rxrtsucast);
+ seq_printf(s, "rxctsucast: %d\n", stats.rxctsucast);
+ seq_printf(s, "rxackucast: %d\n", stats.rxackucast);
+ seq_printf(s, "rxdfrmocast: %d\n", stats.rxdfrmocast);
+ seq_printf(s, "rxmfrmocast: %d\n", stats.rxmfrmocast);
+ seq_printf(s, "rxcfrmocast: %d\n", stats.rxcfrmocast);
+ seq_printf(s, "rxrtsocast: %d\n", stats.rxrtsocast);
+ seq_printf(s, "rxctsocast: %d\n", stats.rxctsocast);
+ seq_printf(s, "rxdfrmmcast: %d\n", stats.rxdfrmmcast);
+ seq_printf(s, "rxmfrmmcast: %d\n", stats.rxmfrmmcast);
+ seq_printf(s, "rxcfrmmcast: %d\n", stats.rxcfrmmcast);
+ seq_printf(s, "rxbeaconmbss: %d\n", stats.rxbeaconmbss);
+ seq_printf(s, "rxdfrmucastobss: %d\n", stats.rxdfrmucastobss);
+ seq_printf(s, "rxbeaconobss: %d\n", stats.rxbeaconobss);
+ seq_printf(s, "rxrsptmout: %d\n", stats.rxrsptmout);
+ seq_printf(s, "bcntxcancl: %d\n", stats.bcntxcancl);
+ seq_printf(s, "rxf0ovfl: %d\n", stats.rxf0ovfl);
+ seq_printf(s, "rxf1ovfl: %d\n", stats.rxf1ovfl);
+ seq_printf(s, "rxf2ovfl: %d\n", stats.rxf2ovfl);
+ seq_printf(s, "txsfovfl: %d\n", stats.txsfovfl);
+ seq_printf(s, "pmqovfl: %d\n", stats.pmqovfl);
+ seq_printf(s, "rxcgprqfrm: %d\n", stats.rxcgprqfrm);
+ seq_printf(s, "rxcgprsqovfl: %d\n", stats.rxcgprsqovfl);
+ seq_printf(s, "txcgprsfail: %d\n", stats.txcgprsfail);
+ seq_printf(s, "txcgprssuc: %d\n", stats.txcgprssuc);
+ seq_printf(s, "prs_timeout: %d\n", stats.prs_timeout);
+ seq_printf(s, "rxnack: %d\n", stats.rxnack);
+ seq_printf(s, "frmscons: %d\n", stats.frmscons);
+ seq_printf(s, "txnack: %d\n", stats.txnack);
+ seq_printf(s, "txglitch_nack: %d\n", stats.txglitch_nack);
+ seq_printf(s, "txburst: %d\n", stats.txburst);
+ seq_printf(s, "bphy_rxcrsglitch: %d\n", stats.bphy_rxcrsglitch);
+ seq_printf(s, "phywatchdog: %d\n", stats.phywatchdog);
+ seq_printf(s, "bphy_badplcp: %d\n", stats.bphy_badplcp);
+ return 0;
+}
+
+struct brcms_debugfs_entry {
+ int (*read)(struct seq_file *seq, void *data);
+ struct brcms_pub *drvr;
+};
+
+static int brcms_debugfs_entry_open(struct inode *inode, struct file *f)
+{
+ struct brcms_debugfs_entry *entry = inode->i_private;
+
+ return single_open(f, entry->read, entry->drvr);
}
-static const struct file_operations brcms_debugfs_hardware_ops = {
+static const struct file_operations brcms_debugfs_def_ops = {
.owner = THIS_MODULE,
- .open = simple_open,
- .read = brcms_debugfs_hardware_read
+ .open = brcms_debugfs_entry_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek
};
+static int
+brcms_debugfs_add_entry(struct brcms_pub *drvr, const char *fn,
+ int (*read_fn)(struct seq_file *seq, void *data))
+{
+ struct device *dev = &drvr->wlc->hw->d11core->dev;
+ struct dentry *dentry = drvr->dbgfs_dir;
+ struct brcms_debugfs_entry *entry;
+
+ if (IS_ERR_OR_NULL(dentry))
+ return -ENOENT;
+
+ entry = devm_kzalloc(dev, sizeof(*entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ entry->read = read_fn;
+ entry->drvr = drvr;
+
+ dentry = debugfs_create_file(fn, S_IRUGO, dentry, entry,
+ &brcms_debugfs_def_ops);
+
+ return PTR_ERR_OR_ZERO(dentry);
+}
+
void brcms_debugfs_create_files(struct brcms_pub *drvr)
{
- struct dentry *dentry = drvr->dbgfs_dir;
+ if (IS_ERR_OR_NULL(drvr->dbgfs_dir))
+ return;
- if (!IS_ERR_OR_NULL(dentry))
- debugfs_create_file("hardware", S_IRUGO, dentry,
- drvr, &brcms_debugfs_hardware_ops);
+ brcms_debugfs_add_entry(drvr, "hardware", brcms_debugfs_hardware_read);
+ brcms_debugfs_add_entry(drvr, "macstat", brcms_debugfs_macstat_read);
}
#define __brcms_fn(fn) \