[PATCH v5] ath10k: Enable debugfs provision to enable Peer Stats feature
Mohammed Shafi Shajakhan
mohammed at codeaurora.org
Wed Mar 16 05:52:19 PDT 2016
Hi Kalle,
I had resent this change (to avoid any confusions with compilation issues)
as a part of the below series
[PATCH v1 1/3] ath10k: Enable debugfs provision to enable Peer Stats feature
[PATCH v1 2/3] ath10k: Introduce Extended Resource Config support
for 10.4
[PATCH v1 3/3] ath10k: Enable parsing per station rx duration for
10.4
Please let me know if there are any issues.
thanks,
shafi
On Fri, Feb 26, 2016 at 09:19:30PM +0530, Mohammed Shafi Shajakhan wrote:
> From: Mohammed Shafi Shajakhan <mohammed at qti.qualcomm.com>
>
> Provide a debugfs entry to enable/ disable Peer Stats feature.
> Peer Stats feature is for developers/users who are more interested
> in studying in Rx/Tx stats with multiple clients connected, hence
> disable this by default. Enabling this feature by default results
> in unneccessary processing of Peer Stats event for every 500ms
> and updating peer_stats list (allocating memory) and cleaning it up
> ifexceeds the higher limit and this can be an unnecessary overhead
> during long run stress testing.
>
> Signed-off-by: Mohammed Shafi Shajakhan <mohammed at qti.qualcomm.com>
> ---
> Dependencies:-
>
> [PATCH] ath10k: Reduce number of peers to support peer stats feature
> (in upstream review)
>
> ath10k: Fix updating peer stats rx duration (in upstream review)
> ath10k: Fix pointless update of peer stats list (in upstream review)
>
> drivers/net/wireless/ath/ath10k/core.c | 2 +-
> drivers/net/wireless/ath/ath10k/core.h | 12 +++++
> drivers/net/wireless/ath/ath10k/debug.c | 80 +++++++++++++++++++++++++++++--
> drivers/net/wireless/ath/ath10k/mac.c | 2 +-
> drivers/net/wireless/ath/ath10k/wmi.c | 12 ++---
> 5 files changed, 94 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> index c84c2d3..c4c31b2 100644
> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -1509,7 +1509,7 @@ static int ath10k_core_init_firmware_features(struct ath10k *ar)
> case ATH10K_FW_WMI_OP_VERSION_10_1:
> case ATH10K_FW_WMI_OP_VERSION_10_2:
> case ATH10K_FW_WMI_OP_VERSION_10_2_4:
> - if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
> + if (ath10k_peer_stats_enabled(ar)) {
> ar->max_num_peers = TARGET_10X_TX_STATS_NUM_PEERS;
> ar->max_num_stations = TARGET_10X_TX_STATS_NUM_STATIONS;
> } else {
> diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
> index a62b62a..cebf22c 100644
> --- a/drivers/net/wireless/ath/ath10k/core.h
> +++ b/drivers/net/wireless/ath/ath10k/core.h
> @@ -549,6 +549,9 @@ enum ath10k_dev_flags {
>
> /* Bluetooth coexistance enabled */
> ATH10K_FLAG_BTCOEX,
> +
> + /* Per Station statistics service */
> + ATH10K_FLAG_PEER_STATS,
> };
>
> enum ath10k_cal_mode {
> @@ -876,6 +879,15 @@ struct ath10k {
> u8 drv_priv[0] __aligned(sizeof(void *));
> };
>
> +static inline bool ath10k_peer_stats_enabled(struct ath10k *ar)
> +{
> + if (test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) &&
> + test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
> + return true;
> +
> + return false;
> +}
> +
> struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
> enum ath10k_bus bus,
> enum ath10k_hw_rev hw_rev,
> diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
> index 06581fa..406e8bc 100644
> --- a/drivers/net/wireless/ath/ath10k/debug.c
> +++ b/drivers/net/wireless/ath/ath10k/debug.c
> @@ -319,7 +319,7 @@ static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
> void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
> {
> struct ath10k_fw_stats stats = {};
> - bool is_start, is_started, is_end, peer_stats_svc;
> + bool is_start, is_started, is_end;
> size_t num_peers;
> size_t num_vdevs;
> int ret;
> @@ -346,13 +346,11 @@ void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
> * b) consume stat update events until another one with pdev stats is
> * delivered which is treated as end-of-data and is itself discarded
> */
> -
> - peer_stats_svc = test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map);
> - if (peer_stats_svc)
> + if (ath10k_peer_stats_enabled(ar))
> ath10k_sta_update_rx_duration(ar, &stats.peers);
>
> if (ar->debug.fw_stats_done) {
> - if (!peer_stats_svc)
> + if (!ath10k_peer_stats_enabled(ar))
> ath10k_warn(ar, "received unsolicited stats update event\n");
>
> goto free;
> @@ -2169,6 +2167,73 @@ static const struct file_operations fops_btcoex = {
> .open = simple_open
> };
>
> +static ssize_t ath10k_write_peer_stats(struct file *file,
> + const char __user *ubuf,
> + size_t count, loff_t *ppos)
> +{
> + struct ath10k *ar = file->private_data;
> + char buf[32];
> + size_t buf_size;
> + int ret = 0;
> + bool val;
> +
> + buf_size = min(count, (sizeof(buf) - 1));
> + if (copy_from_user(buf, ubuf, buf_size))
> + return -EFAULT;
> +
> + buf[buf_size] = '\0';
> +
> + if (strtobool(buf, &val) != 0)
> + return -EINVAL;
> +
> + mutex_lock(&ar->conf_mutex);
> +
> + if (ar->state != ATH10K_STATE_ON &&
> + ar->state != ATH10K_STATE_RESTARTED) {
> + ret = -ENETDOWN;
> + goto exit;
> + }
> +
> + if (!(test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags) ^ val))
> + goto exit;
> +
> + if (val)
> + set_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
> + else
> + clear_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags);
> +
> + ath10k_info(ar, "restarting firmware due to Peer stats change");
> +
> + queue_work(ar->workqueue, &ar->restart_work);
> + ret = count;
> +
> +exit:
> + mutex_unlock(&ar->conf_mutex);
> + return ret;
> +}
> +
> +static ssize_t ath10k_read_peer_stats(struct file *file, char __user *ubuf,
> + size_t count, loff_t *ppos)
> +
> +{
> + char buf[32];
> + struct ath10k *ar = file->private_data;
> + int len = 0;
> +
> + mutex_lock(&ar->conf_mutex);
> + len = scnprintf(buf, sizeof(buf) - len, "%d\n",
> + test_bit(ATH10K_FLAG_PEER_STATS, &ar->dev_flags));
> + mutex_unlock(&ar->conf_mutex);
> +
> + return simple_read_from_buffer(ubuf, count, ppos, buf, len);
> +}
> +
> +static const struct file_operations fops_peer_stats = {
> + .read = ath10k_read_peer_stats,
> + .write = ath10k_write_peer_stats,
> + .open = simple_open
> +};
> +
> static ssize_t ath10k_debug_fw_checksums_read(struct file *file,
> char __user *user_buf,
> size_t count, loff_t *ppos)
> @@ -2335,6 +2400,11 @@ int ath10k_debug_register(struct ath10k *ar)
> debugfs_create_file("btcoex", S_IRUGO | S_IWUSR,
> ar->debug.debugfs_phy, ar, &fops_btcoex);
>
> + if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
> + debugfs_create_file("peer_stats", S_IRUGO | S_IWUSR,
> + ar->debug.debugfs_phy, ar,
> + &fops_peer_stats);
> +
> debugfs_create_file("fw_checksums", S_IRUSR,
> ar->debug.debugfs_phy, ar, &fops_fw_checksums);
>
> diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
> index 96e2f8a..d5ef201 100644
> --- a/drivers/net/wireless/ath/ath10k/mac.c
> +++ b/drivers/net/wireless/ath/ath10k/mac.c
> @@ -4100,7 +4100,7 @@ static int ath10k_start(struct ieee80211_hw *hw)
>
> ar->ani_enabled = true;
>
> - if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
> + if (ath10k_peer_stats_enabled(ar)) {
> param = ar->wmi.pdev_param->peer_stats_update_period;
> ret = ath10k_wmi_pdev_set_param(ar, param,
> PEER_DEFAULT_STATS_UPDATE_PERIOD);
> diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
> index 7026138..ef390ae 100644
> --- a/drivers/net/wireless/ath/ath10k/wmi.c
> +++ b/drivers/net/wireless/ath/ath10k/wmi.c
> @@ -2865,11 +2865,8 @@ static int ath10k_wmi_10_2_4_op_pull_fw_stats(struct ath10k *ar,
> const struct wmi_10_2_4_ext_peer_stats *src;
> struct ath10k_fw_stats_peer *dst;
> int stats_len;
> - bool ext_peer_stats_support;
>
> - ext_peer_stats_support = test_bit(WMI_SERVICE_PEER_STATS,
> - ar->wmi.svc_map);
> - if (ext_peer_stats_support)
> + if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
> stats_len = sizeof(struct wmi_10_2_4_ext_peer_stats);
> else
> stats_len = sizeof(struct wmi_10_2_4_peer_stats);
> @@ -2886,7 +2883,7 @@ static int ath10k_wmi_10_2_4_op_pull_fw_stats(struct ath10k *ar,
>
> dst->peer_rx_rate = __le32_to_cpu(src->common.peer_rx_rate);
>
> - if (ext_peer_stats_support)
> + if (ath10k_peer_stats_enabled(ar))
> dst->rx_duration = __le32_to_cpu(src->rx_duration);
> /* FIXME: expose 10.2 specific values */
>
> @@ -5517,7 +5514,8 @@ static struct sk_buff *ath10k_wmi_10_2_op_gen_init(struct ath10k *ar)
>
> config.num_vdevs = __cpu_to_le32(TARGET_10X_NUM_VDEVS);
> config.num_peer_keys = __cpu_to_le32(TARGET_10X_NUM_PEER_KEYS);
> - if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map)) {
> +
> + if (ath10k_peer_stats_enabled(ar)) {
> config.num_peers = __cpu_to_le32(TARGET_10X_TX_STATS_NUM_PEERS);
> config.num_tids = __cpu_to_le32(TARGET_10X_TX_STATS_NUM_TIDS);
> } else {
> @@ -5579,7 +5577,7 @@ static struct sk_buff *ath10k_wmi_10_2_op_gen_init(struct ath10k *ar)
> test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map))
> features |= WMI_10_2_COEX_GPIO;
>
> - if (test_bit(WMI_SERVICE_PEER_STATS, ar->wmi.svc_map))
> + if (ath10k_peer_stats_enabled(ar))
> features |= WMI_10_2_PEER_STATS;
>
> cmd->resource_config.feature_mask = __cpu_to_le32(features);
> --
> 1.7.9.5
>
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