Add per station debugfs files when a station is added to mac80211's
station list. This helps to group peer specific debugfs entries
altogether. Right now this callback adds support to test aggregation
procedures (addba/addba_resp/delba) manually.
To enable automatic aggregation in target,
echo 0 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/
stations/XX:XX:XX:XX:XX:XX/aggr_mode
For manual mode,
echo 1 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/
stations/XX:XX:XX:XX:XX:XX/aggr_mode
Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/Makefile | 1 +
drivers/net/wireless/ath/ath10k/core.h | 5 ++
drivers/net/wireless/ath/ath10k/debug.h | 11 +++-
drivers/net/wireless/ath/ath10k/debugfs_sta.c | 89 +++++++++++++++++++++++++++
drivers/net/wireless/ath/ath10k/mac.c | 3 +
5 files changed, 108 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/wireless/ath/ath10k/debugfs_sta.c
diff --git a/drivers/net/wireless/ath/ath10k/Makefile b/drivers/net/wireless/ath/ath10k/Makefile
index ffa3b1a..6c0c23e 100644
--- a/drivers/net/wireless/ath/ath10k/Makefile
+++ b/drivers/net/wireless/ath/ath10k/Makefile
@@ -15,6 +15,7 @@ ath10k_core-$(CONFIG_ATH10K_DEBUGFS) += spectral.o
ath10k_core-$(CONFIG_NL80211_TESTMODE) += testmode.o
ath10k_core-$(CONFIG_ATH10K_TRACING) += trace.o
ath10k_core-$(CONFIG_THERMAL) += thermal.o
+ath10k_core-$(CONFIG_MAC80211_DEBUGFS) += debugfs_sta.o
obj-$(CONFIG_ATH10K_PCI) += ath10k_pci.o
ath10k_pci-y += pci.o \
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index b7ba7cf..0ae2253 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -239,6 +239,11 @@ struct ath10k_sta {
u32 smps;
struct work_struct update_wk;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* protected by conf_mutex */
+ bool aggr_mode;
+#endif
};
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index 1b87a5d..a12b832 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -48,6 +48,12 @@ enum ath10k_pktlog_filter {
ATH10K_PKTLOG_ANY = 0x00000001f,
};
+enum ath10k_dbg_aggr_mode {
+ ATH10K_DBG_AGGR_MODE_AUTO,
+ ATH10K_DBG_AGGR_MODE_MANUAL,
+ ATH10K_DBG_AGGR_MODE_MAX,
+};
+
extern unsigned int ath10k_debug_mask;
__printf(2, 3) void ath10k_info(struct ath10k *ar, const char *fmt, ...);
@@ -77,7 +83,6 @@ int ath10k_debug_get_et_sset_count(struct ieee80211_hw *hw,
void ath10k_debug_get_et_stats(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ethtool_stats *stats, u64 *data);
-
#else
static inline int ath10k_debug_start(struct ath10k *ar)
{
@@ -129,6 +134,10 @@ ath10k_debug_get_new_fw_crash_data(struct ath10k *ar)
#define ath10k_debug_get_et_stats NULL
#endif /* CONFIG_ATH10K_DEBUGFS */
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, struct dentry *dir);
+#endif /* CONFIG_MAC80211_DEBUGFS */
#ifdef CONFIG_ATH10K_DEBUG
__printf(3, 4) void ath10k_dbg(struct ath10k *ar,
diff --git a/drivers/net/wireless/ath/ath10k/debugfs_sta.c b/drivers/net/wireless/ath/ath10k/debugfs_sta.c
new file mode 100644
index 0000000..d5fca70
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/debugfs_sta.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2014 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <linux/utsname.h>
+
+#include "core.h"
+#include "wmi-ops.h"
+#include "debug.h"
+
+static ssize_t ath10k_dbg_sta_read_aggr_mode(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_sta *sta = file->private_data;
+ struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
+ struct ath10k *ar = arsta->arvif->ar;
+ char buf[32];
+ int len = 0;
+
+ mutex_lock(&ar->conf_mutex);
+ len = scnprintf(buf, sizeof(buf) - len, "aggregation mode: %s\n",
+ (arsta->aggr_mode == ATH10K_DBG_AGGR_MODE_AUTO) ?
+ "auto" : "manual");
+ mutex_unlock(&ar->conf_mutex);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t ath10k_dbg_sta_write_aggr_mode(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_sta *sta = file->private_data;
+ struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
+ struct ath10k *ar = arsta->arvif->ar;
+ u32 aggr_mode;
+ int ret;
+
+ if (kstrtouint_from_user(user_buf, count, 0, &aggr_mode))
+ return -EINVAL;
+
+ if (aggr_mode >= ATH10K_DBG_AGGR_MODE_MAX)
+ return -EINVAL;
+
+ mutex_lock(&ar->conf_mutex);
+ if ((ar->state != ATH10K_STATE_ON) ||
+ (aggr_mode == arsta->aggr_mode)) {
+ ret = count;
+ goto out;
+ }
+
+ ret = ath10k_wmi_addba_clear_resp(ar, arsta->arvif->vdev_id, sta->addr);
+ if (ret) {
+ ath10k_warn(ar, "failed to clear addba session ret: %d\n", ret);
+ goto out;
+ }
+
+ arsta->aggr_mode = aggr_mode;
+out:
+ mutex_unlock(&ar->conf_mutex);
+ return ret;
+}
+
+static const struct file_operations fops_aggr_mode = {
+ .read = ath10k_dbg_sta_read_aggr_mode,
+ .write = ath10k_dbg_sta_write_aggr_mode,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
+void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, struct dentry *dir)
+{
+ debugfs_create_file("aggr_mode", S_IRUGO | S_IWUSR, dir, sta,
+ &fops_aggr_mode);
+}
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 5475f0f..2b6f272 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4678,6 +4678,9 @@ static const struct ieee80211_ops ath10k_ops = {
.suspend = ath10k_suspend,
.resume = ath10k_resume,
#endif
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .sta_add_debugfs = ath10k_sta_add_debugfs,
+#endif
};
#define RATETAB_ENT(_rate, _rateid, _flags) { \
--
2.2.0
--
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