qcacmn: Add support to enable tx hw latency stats at run time
This feature can be enabled runtime using sysfs interface. Support is added to dump and clear the histogram stats. The lower delay regions has to be more granular to indicate any medium related issues for time sensitive XR applications. Change-Id: I0a44a54d12d92ce016de349810cb2bedebaf9a58 CRs-Fixed: 2981006
这个提交包含在：
Yeshwanth Sriram Guntuka
提交者
Madan Koyyalamudi
Madan Koyyalamudi
父节点
3de51ff2c5
当前提交
df666b7116
@@ -280,7 +280,18 @@ const char *fw_to_hw_delay_bucket[CDP_DELAY_BUCKET_MAX + 1] = {
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"81 to 90 ms", "91 to 100 ms",
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"101 to 250 ms", "251 to 500 ms", "500+ ms"
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};
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#elif defined(HW_TX_DELAY_STATS_ENABLE)
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const char *fw_to_hw_delay_bucket[CDP_DELAY_BUCKET_MAX + 1] = {
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"0 to 2 ms", "2 to 4 ms",
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"4 to 6 ms", "6 to 8 ms",
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"8 to 10 ms", "10 to 20 ms",
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"20 to 30 ms", "30 to 40 ms",
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"40 to 50 ms", "50 to 100 ms",
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"100 to 250 ms", "250 to 500 ms", "500+ ms"
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};
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#endif
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#ifdef QCA_ENH_V3_STATS_SUPPORT
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const char *sw_enq_delay_bucket[CDP_DELAY_BUCKET_MAX + 1] = {
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"0 to 1 ms", "1 to 2 ms",
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"2 to 3 ms", "3 to 4 ms",
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@@ -4547,7 +4558,7 @@ void dp_peer_stats_update_protocol_cnt(struct cdp_soc_t *soc_hdl,
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}
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#endif
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#ifdef QCA_ENH_V3_STATS_SUPPORT
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#if defined(QCA_ENH_V3_STATS_SUPPORT) || defined(HW_TX_DELAY_STATS_ENABLE)
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/**
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* dp_vow_str_fw_to_hw_delay() - Return string for a delay
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* @index: Index of delay
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@@ -4562,6 +4573,28 @@ static inline const char *dp_vow_str_fw_to_hw_delay(uint8_t index)
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return fw_to_hw_delay_bucket[index];
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}
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/**
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* dp_accumulate_delay_stats() - Update delay stats members
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* @total: Update stats total structure
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* @per_ring: per ring structures from where stats need to be accumulated
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*
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* Return: void
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*/
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static void
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dp_accumulate_delay_stats(struct cdp_delay_stats *total,
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struct cdp_delay_stats *per_ring)
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{
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uint8_t index;
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for (index = 0; index < CDP_DELAY_BUCKET_MAX; index++)
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total->delay_bucket[index] += per_ring->delay_bucket[index];
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total->min_delay = QDF_MIN(total->min_delay, per_ring->min_delay);
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total->max_delay = QDF_MAX(total->max_delay, per_ring->max_delay);
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total->avg_delay = ((total->avg_delay + per_ring->avg_delay) >> 1);
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}
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#endif
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#ifdef QCA_ENH_V3_STATS_SUPPORT
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/**
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* dp_vow_str_sw_enq_delay() - Return string for a delay
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* @index: Index of delay
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@@ -4590,26 +4623,6 @@ static inline const char *dp_vow_str_intfrm_delay(uint8_t index)
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return intfrm_delay_bucket[index];
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}
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/**
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* dp_accumulate_delay_stats() - Update delay stats members
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* @total: Update stats total structure
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* @per_ring: per ring structures from where stats need to be accumulated
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*
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* Return: void
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*/
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static void
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dp_accumulate_delay_stats(struct cdp_delay_stats *total,
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struct cdp_delay_stats *per_ring)
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{
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uint8_t index;
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for (index = 0; index < CDP_DELAY_BUCKET_MAX; index++)
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total->delay_bucket[index] += per_ring->delay_bucket[index];
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total->min_delay = QDF_MIN(total->min_delay, per_ring->min_delay);
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total->max_delay = QDF_MAX(total->max_delay, per_ring->max_delay);
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total->avg_delay = (total->avg_delay + per_ring->avg_delay) / 2;
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}
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/**
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* dp_accumulate_tid_stats() - Accumulate TID stats from each ring
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* @pdev: pdev handle
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@@ -4918,6 +4931,153 @@ void dp_pdev_print_rx_error_stats(struct dp_pdev *pdev)
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}
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#endif
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#ifdef HW_TX_DELAY_STATS_ENABLE
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static void dp_vdev_print_tx_delay_stats(struct dp_vdev *vdev)
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{
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struct cdp_delay_stats delay_stats;
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struct cdp_tid_tx_stats *per_ring;
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uint8_t tid, index;
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uint64_t count = 0;
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uint8_t ring_id;
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if (!vdev)
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return;
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DP_PRINT_STATS("vdev_id: %d Per TID Delay Non-Zero Stats:\n",
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vdev->vdev_id);
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for (tid = 0; tid < CDP_MAX_DATA_TIDS; tid++) {
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qdf_mem_zero(&delay_stats, sizeof(delay_stats));
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for (ring_id = 0; ring_id < CDP_MAX_TX_COMP_RINGS; ring_id++) {
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per_ring = &vdev->stats.tid_tx_stats[ring_id][tid];
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dp_accumulate_delay_stats(&delay_stats,
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&per_ring->hwtx_delay);
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}
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DP_PRINT_STATS("Hardware Tx completion latency stats TID: %d",
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tid);
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for (index = 0; index < CDP_DELAY_BUCKET_MAX; index++) {
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count = delay_stats.delay_bucket[index];
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if (count) {
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DP_PRINT_STATS("%s: Packets = %llu",
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dp_vow_str_fw_to_hw_delay(index),
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count);
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}
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}
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DP_PRINT_STATS("Min = %u", delay_stats.min_delay);
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DP_PRINT_STATS("Max = %u", delay_stats.max_delay);
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DP_PRINT_STATS("Avg = %u\n", delay_stats.avg_delay);
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}
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}
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void dp_pdev_print_tx_delay_stats(struct dp_soc *soc)
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{
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struct dp_pdev *pdev = dp_get_pdev_from_soc_pdev_id_wifi3(soc, 0);
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struct dp_vdev *vdev;
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struct dp_vdev **vdev_array = NULL;
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int index = 0, num_vdev = 0;
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if (!pdev) {
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dp_err("pdev is NULL");
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return;
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}
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vdev_array =
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qdf_mem_malloc(sizeof(struct dp_vdev *) * WLAN_PDEV_MAX_VDEVS);
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if (!vdev_array)
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return;
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qdf_spin_lock_bh(&pdev->vdev_list_lock);
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DP_PDEV_ITERATE_VDEV_LIST(pdev, vdev) {
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if (dp_vdev_get_ref(soc, vdev, DP_MOD_ID_GENERIC_STATS))
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continue;
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vdev_array[index] = vdev;
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index = index + 1;
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}
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qdf_spin_unlock_bh(&pdev->vdev_list_lock);
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num_vdev = index;
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for (index = 0; index < num_vdev; index++) {
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vdev = vdev_array[index];
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dp_vdev_print_tx_delay_stats(vdev);
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dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_GENERIC_STATS);
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}
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qdf_mem_free(vdev_array);
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}
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/**
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* dp_reset_delay_stats() - reset delay stats
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* @per_ring: per ring structures from where stats need to be accumulated
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*
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* Return: void
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*/
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static void dp_reset_delay_stats(struct cdp_delay_stats *per_ring)
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{
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qdf_mem_zero(per_ring, sizeof(struct cdp_delay_stats));
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}
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/**
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* dp_vdev_init_tx_delay_stats() - Clear tx delay stats
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* @vdev: vdev handle
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*
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* Return: None
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*/
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static void dp_vdev_init_tx_delay_stats(struct dp_vdev *vdev)
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{
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struct cdp_tid_tx_stats *per_ring;
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uint8_t tid;
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uint8_t ring_id;
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if (!vdev)
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return;
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for (tid = 0; tid < CDP_MAX_DATA_TIDS; tid++) {
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for (ring_id = 0; ring_id < CDP_MAX_TX_COMP_RINGS; ring_id++) {
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per_ring = &vdev->stats.tid_tx_stats[ring_id][tid];
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dp_reset_delay_stats(&per_ring->hwtx_delay);
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}
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}
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}
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void dp_pdev_clear_tx_delay_stats(struct dp_soc *soc)
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{
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struct dp_pdev *pdev = dp_get_pdev_from_soc_pdev_id_wifi3(soc, 0);
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struct dp_vdev *vdev;
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struct dp_vdev **vdev_array = NULL;
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int index = 0, num_vdev = 0;
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if (!pdev) {
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dp_err("pdev is NULL");
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return;
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}
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vdev_array =
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qdf_mem_malloc(sizeof(struct dp_vdev *) * WLAN_PDEV_MAX_VDEVS);
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if (!vdev_array)
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return;
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qdf_spin_lock_bh(&pdev->vdev_list_lock);
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DP_PDEV_ITERATE_VDEV_LIST(pdev, vdev) {
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if (dp_vdev_get_ref(soc, vdev, DP_MOD_ID_GENERIC_STATS) !=
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QDF_STATUS_SUCCESS)
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continue;
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vdev_array[index] = vdev;
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index = index + 1;
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}
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qdf_spin_unlock_bh(&pdev->vdev_list_lock);
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num_vdev = index;
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for (index = 0; index < num_vdev; index++) {
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vdev = vdev_array[index];
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dp_vdev_init_tx_delay_stats(vdev);
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dp_vdev_unref_delete(soc, vdev, DP_MOD_ID_GENERIC_STATS);
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}
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qdf_mem_free(vdev_array);
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}
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#endif
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void dp_print_soc_cfg_params(struct dp_soc *soc)
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{
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struct wlan_cfg_dp_soc_ctxt *soc_cfg_ctx;
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