/* FIXME: this should be completed with other parameters from the config */
static int dtcp_sv_init(struct dtcp * instance, struct dtcp_sv sv)
{
struct dtcp_config * cfg;
struct dtcp_ps * ps;
if (!instance) {
LOG_ERR("Bogus instance passed");
return -1;
}
if (!instance->sv) {
LOG_ERR("Bogus sv passed");
return -1;
}
cfg = dtcp_config_get(instance);
if (!cfg)
return -1;
*instance->sv = sv;
spin_lock_init(&instance->sv->lock);
rcu_read_lock();
ps = container_of(rcu_dereference(instance->base.ps),
struct dtcp_ps, base);
if (ps->rtx_ctrl)
instance->sv->data_retransmit_max =
ps->rtx.data_retransmit_max;
instance->sv->sndr_credit = ps->flowctrl.window.initial_credit;
instance->sv->snd_rt_wind_edge = ps->flowctrl.window.initial_credit +
dtp_sv_last_nxt_seq_nr(dt_dtp(instance->parent));
instance->sv->rcvr_credit = ps->flowctrl.window.initial_credit;
instance->sv->rcvr_rt_wind_edge = ps->flowctrl.window.initial_credit;
rcu_read_unlock();
LOG_DBG("DTCP SV initialized with dtcp_conf:");
LOG_DBG(" data_retransmit_max: %d",
instance->sv->data_retransmit_max);
LOG_DBG(" sndr_credit: %u",
instance->sv->sndr_credit);
LOG_DBG(" snd_rt_wind_edge: %u",
instance->sv->snd_rt_wind_edge);
LOG_DBG(" rcvr_credit: %u",
instance->sv->rcvr_credit);
LOG_DBG(" rcvr_rt_wind_edge: %u",
instance->sv->rcvr_rt_wind_edge);
return 0;
}
static int
default_sender_inactivity_timer(struct dtp_ps * ps)
{
struct dtp * dtp = ps->dm;
struct dt * dt;
struct dtcp * dtcp;
struct dtcp_ps * dtcp_ps;
struct dtcp_config * cfg;
seq_num_t max_sent, snd_rt_win, init_credit, next_send;
LOG_DBG("default_sender_inactivity launched");
if (!dtp) return 0;
dt = dtp_dt(dtp);
if (!dt)
return -1;
dtcp = dt_dtcp(dt);
if (!dtp)
return -1;
dt_sv_drf_flag_set(dt, true);
dtp_initial_sequence_number(dtp);
cfg = dtcp_config_get(dtcp);
if (!cfg)
return -1;
rcu_read_lock();
dtcp_ps = dtcp_ps_get(dtcp);
if (dtcp_ps->rtx_ctrl) {
struct rtxq * q;
q = dt_rtxq(dt);
if (!q) {
rcu_read_unlock();
LOG_ERR("Couldn't find the Retransmission queue");
return -1;
}
rtxq_flush(q);
}
if (dtcp_ps->flow_ctrl) {
struct cwq * cwq;
cwq = dt_cwq(dt);
ASSERT(cwq);
if (cwq_flush(cwq)) {
rcu_read_unlock();
LOG_ERR("Coudln't flush cwq");
return -1;
}
dt_sv_window_closed_set(dt, false);
}
rcu_read_unlock();
init_credit = dtcp_initial_credit(cfg);
max_sent = dtp_sv_max_seq_nr_sent(dtp);
snd_rt_win = dtcp_snd_rt_win(dtcp);
next_send = dtp_sv_last_nxt_seq_nr(dtp);
LOG_DBG("Current values:\n\tinit_credit: %u "
"max_sent: %u snd_rt_win: %u next_send: %u",
init_credit, max_sent, snd_rt_win, next_send);
dtcp_snd_rt_win_set(dtcp, next_send + init_credit);
LOG_DBG("Resulting snd_rt_win_edge: %u", dtcp_snd_rt_win(dtcp));
/*FIXME: Missing sending the control ack pdu */
return 0;
}
