From: Kalle Valo <kalle.valo@xxxxxxxxx>
Because it's not yet decided how to configure which queues are U-APSD
enabled, add a debugfs interface for testing purposes.
Signed-off-by: Kalle Valo <kalle.valo@xxxxxxxxx>
---
net/mac80211/debugfs.c | 41 +++++++++++++++++++++++++++++++++++++++++
net/mac80211/ieee80211_i.h | 3 +++
net/mac80211/main.c | 1 +
net/mac80211/mlme.c | 8 ++------
4 files changed, 47 insertions(+), 6 deletions(-)
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index e4b5409..780face 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -158,6 +158,47 @@ static const struct file_operations noack_ops = {
.open = mac80211_open_file_generic
};
+static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ int res;
+ char buf[10];
+
+ res = scnprintf(buf, sizeof(buf), "%d\n", local->uapsd_queues);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+static ssize_t uapsd_queues_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ unsigned long val;
+ char buf[10];
+ size_t len;
+ int ret;
+
+ len = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, len))
+ return -EFAULT;
+ buf[len] = '\0';
+
+ ret = strict_strtoul(buf, 10, &val);
+
+ if (ret == 0)
+ local->uapsd_queues = val;
+
+ return count;
+}
+
+static const struct file_operations uapsd_queues_ops = {
+ .read = uapsd_queues_read,
+ .write = uapsd_queues_write,
+ .open = mac80211_open_file_generic
+};
+
static ssize_t queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 94eaf21..f3cc7ce 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -58,6 +58,8 @@ struct ieee80211_local;
#define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
+#define IEEE80211_DEFAULT_UAPSD_QUEUES IEEE80211_QOS_IE_AC_VO
+
struct ieee80211_fragment_entry {
unsigned long first_frag_time;
unsigned int seq;
@@ -746,6 +748,7 @@ struct ieee80211_local {
*/
int wifi_wme_noack_test;
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
+ unsigned int uapsd_queues;
bool pspolling;
/*
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index dd8ec8d..41b7cae 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -358,6 +358,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
local->user_power_level = -1;
+ local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
INIT_LIST_HEAD(&local->interfaces);
mutex_init(&local->iflist_mtx);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4bf062b..667d1d6 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -82,8 +82,6 @@ enum rx_mgmt_action {
RX_MGMT_CFG80211_ASSOC_TO,
};
-#define IEEE80211_DEFAULT_UAPSD_QUEUES IEEE80211_QOS_IE_AC_VO
-
/* utils */
static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
{
@@ -373,8 +371,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED)) {
if (uapsd && (local->hw.flags & IEEE80211_HW_UAPSD)) {
- /* FIXME: configure queues from debugfs */
- qos_info = IEEE80211_DEFAULT_UAPSD_QUEUES;
+ qos_info = local->uapsd_queues;
ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED;
} else {
qos_info = 0;
@@ -811,8 +808,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
return;
if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED)
- /* FIXME: use debugfs */
- uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES;
+ uapsd_queues = local->uapsd_queues;
count = wmm_param[6] & 0x0f;
if (count == ifmgd->wmm_last_param_set)
--
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