156     if (OS_MBUF_PKTLEN(rx->sdu) == 0) {  in ble_l2cap_coc_rx_fn()
172         rc = os_mbuf_appendfrom(rx->sdu, *om, 0, om_total - BLE_L2CAP_SDU_SIZE);  in ble_l2cap_coc_rx_fn()
181         /* In RX case data_offset keeps incoming SDU len */  in ble_l2cap_coc_rx_fn()
187         rc  = os_mbuf_appendfrom(rx->sdu, *om, 0, om_total);  in ble_l2cap_coc_rx_fn()
197     if (OS_MBUF_PKTLEN(rx->sdu) == rx->data_offset) {  in ble_l2cap_coc_rx_fn()
198         struct os_mbuf *sdu_rx = rx->sdu;  in ble_l2cap_coc_rx_fn()
201                    OS_MBUF_PKTLEN(rx->sdu), rx->credits);  in ble_l2cap_coc_rx_fn()
204          * Since it this callback application might want to set new sdu  in ble_l2cap_coc_rx_fn()
207         rx->sdu = NULL;  in ble_l2cap_coc_rx_fn()
215     /* If we did not received full SDU and credits are 0 it means  in ble_l2cap_coc_rx_fn()
218      * credit to peer so it can send us full SDU  in ble_l2cap_coc_rx_fn()
221         /* Remote did not send full SDU. Lets give him one more credits to do  in ble_l2cap_coc_rx_fn()
229                OS_MBUF_PKTLEN(rx->sdu), rx->credits);  in ble_l2cap_coc_rx_fn()
253     chan->coc_rx.sdu = sdu_rx;  in ble_l2cap_coc_chan_alloc()
255     /* Number of credits should allow to send full SDU with on given  in ble_l2cap_coc_chan_alloc()
312     os_mbuf_free_chain(chan->coc_rx.sdu);  in ble_l2cap_coc_cleanup_chan()
313     os_mbuf_free_chain(chan->coc_tx.sdu);  in ble_l2cap_coc_cleanup_chan()
329     if (!tx->sdu) {  in ble_l2cap_coc_continue_tx()
339         left_to_send = OS_MBUF_PKTLEN(tx->sdu) - tx->data_offset;  in ble_l2cap_coc_continue_tx()
358             /* First packet needs SDU len first. Left to send */  in ble_l2cap_coc_continue_tx()
359             uint16_t l = htole16(OS_MBUF_PKTLEN(tx->sdu));  in ble_l2cap_coc_continue_tx()
361             BLE_HS_LOG(DEBUG, "Sending SDU len=%d\n", OS_MBUF_PKTLEN(tx->sdu));  in ble_l2cap_coc_continue_tx()
370          * that for first packet we need to decrease data size by 2 bytes for sdu  in ble_l2cap_coc_continue_tx()
373         rc = os_mbuf_appendfrom(txom, tx->sdu, tx->data_offset,  in ble_l2cap_coc_continue_tx()
395                   len, tx->credits, OS_MBUF_PKTLEN(tx->sdu)- tx->data_offset );  in ble_l2cap_coc_continue_tx()
397         if (tx->data_offset == OS_MBUF_PKTLEN(tx->sdu)) {  in ble_l2cap_coc_continue_tx()
399                 os_mbuf_free_chain(tx->sdu);  in ble_l2cap_coc_continue_tx()
400                 tx->sdu = 0;  in ble_l2cap_coc_continue_tx()
409     os_mbuf_free_chain(tx->sdu);  in ble_l2cap_coc_continue_tx()
410     tx->sdu = NULL;  in ble_l2cap_coc_continue_tx()
455     chan->coc_rx.sdu = sdu_rx;  in ble_l2cap_coc_recv_ready()
466      * to be able to send complete SDU.  in ble_l2cap_coc_recv_ready()
490     if (tx->sdu) {  in ble_l2cap_coc_send()
498     tx->sdu = sdu_tx;  in ble_l2cap_coc_send()