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Bluetooth: controller: Add in-system Tx throughput measurement

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Added feature to in-system measure incoming Tx throughput.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2020-09-16 15:11:48 +05:30 • committed by Ioannis Glaropoulos
commit 3bbe2c0a07
2 changed files with 34 additions and 0 deletions
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5
subsys/bluetooth/controller/Kconfig.ll_sw_split
View file

@ -385,6 +385,11 @@ config BT_CTLR_TX_RETRY_DISABLE
would happen in the next connection event instead of repeated retries
in the current connection event.
config BT_CTLR_THROUGHPUT
bool "Measure incoming Tx throughput"
help
Measure incoming Tx throughput and log the results.
config BT_CTLR_FORCE_MD_COUNT
int "Forced MD bit count"
range 0 255

29
subsys/bluetooth/controller/ll_sw/ull_conn.c
View file

@ -218,6 +218,11 @@ void ll_tx_mem_release(void *tx)
int ll_tx_mem_enqueue(uint16_t handle, void *tx)
{
#if defined(CONFIG_BT_CTLR_THROUGHPUT)
#define BT_CTLR_THROUGHPUT_PERIOD 1000000000UL
static uint32_t tx_rate;
static uint32_t tx_cnt;
#endif /* CONFIG_BT_CTLR_THROUGHPUT */
struct lll_tx *lll_tx;
struct ll_conn *conn;
uint8_t idx;
@ -267,6 +272,30 @@ int ll_tx_mem_enqueue(uint16_t handle, void *tx)
}
#endif /* CONFIG_BT_PERIPHERAL */
#if defined(CONFIG_BT_CTLR_THROUGHPUT)
static uint32_t last_cycle_stamp;
static uint32_t tx_len;
struct pdu_data *pdu;
uint32_t cycle_stamp;
uint64_t delta;
cycle_stamp = k_cycle_get_32();
delta = k_cyc_to_ns_floor64(cycle_stamp - last_cycle_stamp);
if (delta > BT_CTLR_THROUGHPUT_PERIOD) {
BT_INFO("incoming Tx: count= %u, len= %u, rate= %u bps.",
tx_cnt, tx_len, tx_rate);
last_cycle_stamp = cycle_stamp;
tx_cnt = 0U;
tx_len = 0U;
}
pdu = (void *)((struct node_tx *)tx)->pdu;
tx_len += pdu->len;
tx_rate = ((uint64_t)tx_len << 3) * BT_CTLR_THROUGHPUT_PERIOD / delta;
tx_cnt++;
#endif /* CONFIG_BT_CTLR_THROUGHPUT */
return 0;
}