From: Bruno Randolf <br1@einfach.org>
To: linville@tuxdriver.com
Cc: ath5k-devel@lists.ath5k.org, linux-wireless@vger.kernel.org
Subject: [PATCH 01/12] ath5k: add debugfs file for queue debugging
Date: Wed, 12 May 2010 18:39:47 +0900 [thread overview]
Message-ID: <20100512093947.6575.99595.stgit@tt-desk> (raw)
Signed-off-by: Bruno Randolf <br1@einfach.org>
---
drivers/net/wireless/ath/ath5k/debug.c | 66 ++++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath5k/debug.h | 1
2 files changed, 67 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 6fb5c5f..c77a6ad 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -729,6 +729,66 @@ static const struct file_operations fops_ani = {
};
+/* debugfs: queues etc */
+
+static ssize_t read_file_queue(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath5k_softc *sc = file->private_data;
+ char buf[700];
+ unsigned int len = 0;
+
+ struct ath5k_txq *txq;
+ struct ath5k_buf *bf, *bf0;
+ int i, n = 0;
+
+ len += snprintf(buf+len, sizeof(buf)-len,
+ "available txbuffers: %d\n", sc->txbuf_len);
+
+ for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
+ txq = &sc->txqs[i];
+
+ len += snprintf(buf+len, sizeof(buf)-len,
+ "%02d: %ssetup\n", i, txq->setup ? "" : "not ");
+
+ if (!txq->setup)
+ continue;
+
+ list_for_each_entry_safe(bf, bf0, &txq->q, list)
+ n++;
+ len += snprintf(buf+len, sizeof(buf)-len, " len: %d\n", n);
+ }
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_queue(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath5k_softc *sc = file->private_data;
+ char buf[20];
+
+ if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
+ return -EFAULT;
+
+ if (strncmp(buf, "start", 5) == 0)
+ ieee80211_wake_queues(sc->hw);
+ else if (strncmp(buf, "stop", 4) == 0)
+ ieee80211_stop_queues(sc->hw);
+
+ return count;
+}
+
+
+static const struct file_operations fops_queue = {
+ .read = read_file_queue,
+ .write = write_file_queue,
+ .open = ath5k_debugfs_open,
+ .owner = THIS_MODULE,
+};
+
+
/* init */
void
@@ -772,6 +832,11 @@ ath5k_debug_init_device(struct ath5k_softc *sc)
S_IWUSR | S_IRUSR,
sc->debug.debugfs_phydir, sc,
&fops_ani);
+
+ sc->debug.debugfs_queue = debugfs_create_file("queue",
+ S_IWUSR | S_IRUSR,
+ sc->debug.debugfs_phydir, sc,
+ &fops_queue);
}
void
@@ -790,6 +855,7 @@ ath5k_debug_finish_device(struct ath5k_softc *sc)
debugfs_remove(sc->debug.debugfs_antenna);
debugfs_remove(sc->debug.debugfs_frameerrors);
debugfs_remove(sc->debug.debugfs_ani);
+ debugfs_remove(sc->debug.debugfs_queue);
debugfs_remove(sc->debug.debugfs_phydir);
}
diff --git a/drivers/net/wireless/ath/ath5k/debug.h b/drivers/net/wireless/ath/ath5k/debug.h
index ddd5b3a..c7a0769 100644
--- a/drivers/net/wireless/ath/ath5k/debug.h
+++ b/drivers/net/wireless/ath/ath5k/debug.h
@@ -77,6 +77,7 @@ struct ath5k_dbg_info {
struct dentry *debugfs_antenna;
struct dentry *debugfs_frameerrors;
struct dentry *debugfs_ani;
+ struct dentry *debugfs_queue;
};
/**
next reply other threads:[~2010-05-12 9:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-12 9:39 Bruno Randolf [this message]
2010-05-12 9:39 ` [PATCH 02/12] ath5k: wake queues on reset Bruno Randolf
2010-05-12 9:39 ` [PATCH 03/12] ath5k: initialize calibration timers Bruno Randolf
2010-05-12 9:40 ` [PATCH 04/12] ath5k: move noise floor calibration into tasklet Bruno Randolf
2010-05-12 9:40 ` [PATCH 05/12] ath5k: Stop queues only for NF calibration Bruno Randolf
2010-05-12 9:40 ` [PATCH 06/12] ath5k: run NF calibration only every 60 seconds Bruno Randolf
2010-05-12 9:40 ` [PATCH 07/12] ath5k: remove ATH_TRACE macro Bruno Randolf
2010-05-12 9:40 ` [PATCH 08/12] ath5k: clarify logic when to enable spur mitigation filter Bruno Randolf
2010-05-12 9:40 ` [PATCH 09/12] ath5k: use ath5k_softc as driver data Bruno Randolf
2010-05-12 9:40 ` [PATCH 10/12] ath5k: add sysfs files for ANI parameters Bruno Randolf
2010-05-12 9:40 ` [PATCH 11/12] ath5k: always calculate ANI listen time Bruno Randolf
2010-05-12 9:40 ` [PATCH 12/12] ath5k: print error message if ANI levels are out of range Bruno Randolf
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