diff --git a/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c b/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c index 469ce53fa5..da9fb2e97f 100644 --- a/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c +++ b/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c @@ -240,19 +240,23 @@ static struct os_mbuf *ble_hci_trans_acl_buf_alloc(void) static void ble_hci_rx_acl(uint8_t *data, uint16_t len) { - struct os_mbuf *m; + struct os_mbuf *m = NULL; int rc; int sr; if (len < BLE_HCI_DATA_HDR_SZ || len > MYNEWT_VAL(BLE_ACL_BUF_SIZE)) { return; } - m = ble_hci_trans_acl_buf_alloc(); + do { + m = ble_hci_trans_acl_buf_alloc(); + + if (!m) { + ESP_LOGD(TAG,"Failed to allocate buffer, retrying \n"); + /* Give some time to free buffer and try again */ + vTaskDelay(1); + } + }while(!m); - if (!m) { - ESP_LOGE(TAG, "%s failed to allocate ACL buffers; increase ACL_BUF_COUNT", __func__); - return; - } if ((rc = os_mbuf_append(m, data, len)) != 0) { ESP_LOGE(TAG, "%s failed to os_mbuf_append; rc = %d", __func__, rc); os_mbuf_free_chain(m);