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Merge branch 'bugfix/retry_packet_alloc_v5.2' into 'release/v5.2'

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fix(nimble): Add packet allocation retry for limited iteration (v5.2)

See merge request espressif/esp-idf!40686
This commit is contained in:
Rahul Tank
2025-07-24 10:14:22 +05:30
parent 25881b2678 3f71f7cfc3
commit 5ad898d659
1 changed files with 19 additions and 5 deletions
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24
components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
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@@ -162,19 +162,33 @@ static void ble_hci_rx_acl(uint8_t *data, uint16_t len)
struct os_mbuf *m = NULL;
int rc;
int sr;
int retry_count = 1;
if (len < BLE_HCI_DATA_HDR_SZ || len > MYNEWT_VAL(BLE_TRANSPORT_ACL_SIZE)) {
return;
}
do {
do {
m = ble_transport_alloc_acl_from_ll();
if (!m) {
esp_rom_printf("Failed to allocate buffer, retrying ");
/* Give some time to free buffer and try again */
vTaskDelay(1);
if (retry_count % 5) {
esp_rom_printf("ACL buf alloc failed %d times\n", retry_count);
esp_rom_printf("Free ACL mbufs: %d\n", os_msys_num_free());
}
vTaskDelay(1);
retry_count++;
if (retry_count >= 30) {
esp_rom_printf("MBUF alloc stuck");
return;
}
}
}while(!m);
} while (!m);
if ((rc = os_mbuf_append(m, data, len)) != 0) {
esp_rom_printf("%s failed to os_mbuf_append; rc = %d", __func__, rc);