static int populate_ctrl_pci(struct pci * pci,
struct dtcp * dtcp)
{
struct dtcp_config * dtcp_cfg;
seq_num_t snd_lft;
seq_num_t snd_rt;
seq_num_t LWE;
dtcp_cfg = dtcp_config_get(dtcp);
if (!dtcp_cfg) {
LOG_ERR("No dtcp cfg...");
return -1;
}
/*
* FIXME: Shouldn't we check if PDU_TYPE_ACK_AND_FC or
* PDU_TYPE_NACK_AND_FC ?
*/
LWE = dt_sv_rcv_lft_win(dtcp->parent);
if (dtcp_flow_ctrl(dtcp_cfg)) {
if (dtcp_window_based_fctrl(dtcp_cfg)) {
snd_lft = snd_lft_win(dtcp);
snd_rt = snd_rt_wind_edge(dtcp);
pci_control_new_left_wind_edge_set(pci, LWE);
pci_control_new_rt_wind_edge_set(pci,
rcvr_rt_wind_edge(dtcp));
pci_control_my_left_wind_edge_set(pci, snd_lft);
pci_control_my_rt_wind_edge_set(pci, snd_rt);
}
if (dtcp_rate_based_fctrl(dtcp_cfg)) {
LOG_MISSING;
}
}
switch (pci_type(pci)) {
case PDU_TYPE_ACK_AND_FC:
case PDU_TYPE_ACK:
if (pci_control_ack_seq_num_set(pci, LWE)) {
LOG_ERR("Could not set sn to ACK");
return -1;
}
return 0;
case PDU_TYPE_NACK_AND_FC:
case PDU_TYPE_NACK:
if (pci_control_ack_seq_num_set(pci, LWE + 1)) {
LOG_ERR("Could not set sn to NACK");
return -1;
}
return 0;
default:
break;
}
return 0;
}
static int deserialize_ack_pci(const struct serdes * instance,
struct pci * new_pci,
int * offset,
const uint8_t * ptr)
{
seq_num_t seq;
struct dt_cons * dt_cons;
ASSERT(instance);
ASSERT(new_pci);
ASSERT(offset);
ASSERT(ptr);
dt_cons = instance->dt_cons;
ASSERT(dt_cons);
seq = 0;
memcpy(&seq, ptr + *offset, dt_cons->seq_num_length);
*offset += dt_cons->seq_num_length;
if (pci_control_ack_seq_num_set(new_pci, seq))
return -1;
return 0;
}
