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Revert "Fix gNB downlink MAC short/long header accordingly with RLC buffer size"

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This reverts commit 081a287929
This commit is contained in:
Luis Pereira
2021-07-06 09:44:37 +00:00
parent 5da8195d23
commit 6cc98eba85
1 changed files with 13 additions and 32 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+13 -32
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@@ -1102,18 +1102,12 @@ void nr_schedule_ue_spec(module_id_t module_id,
if (sched_ctrl->num_total_bytes > 0) {
tbs_size_t len = 0;
while (size > 3) {
// Reserve space for short or long header.
// Check if data from RLC is equal or longer than 256B or not.
// Data from RLC was checked before, in function nr_store_dlsch_buffer
uint8_t *header = buf;
if (sched_ctrl->num_total_bytes >= 256) {
buf += sizeof(NR_MAC_SUBHEADER_LONG);
size -= sizeof(NR_MAC_SUBHEADER_LONG);
} else {
buf += sizeof(NR_MAC_SUBHEADER_SHORT);
size -= sizeof(NR_MAC_SUBHEADER_SHORT);
}
// we do not know how much data we will get from RLC, i.e., whether it
// will be longer than 256B or not. Therefore, reserve space for long header, then
// fetch data, then fill real length
NR_MAC_SUBHEADER_LONG *header = (NR_MAC_SUBHEADER_LONG *) buf;
buf += 3;
size -= 3;
/* limit requested number of bytes to what preprocessor specified, or
* such that TBS is full */
@@ -1143,32 +1137,19 @@ void nr_schedule_ue_spec(module_id_t module_id,
if (len == 0)
break;
if (sched_ctrl->num_total_bytes >= 256) {
((NR_MAC_SUBHEADER_LONG *) header)->R = 0;
((NR_MAC_SUBHEADER_LONG *) header)->F = 1;
((NR_MAC_SUBHEADER_LONG *) header)->LCID = lcid;
((NR_MAC_SUBHEADER_LONG *) header)->L1 = (len >> 8) & 0xff;
((NR_MAC_SUBHEADER_LONG *) header)->L2 = len & 0xff;
} else {
((NR_MAC_SUBHEADER_SHORT *) header)->R = 0;
((NR_MAC_SUBHEADER_SHORT *) header)->F = 0;
((NR_MAC_SUBHEADER_SHORT *) header)->LCID = lcid;
((NR_MAC_SUBHEADER_SHORT *) header)->L = len & 0xff;
}
header->R = 0;
header->F = 1;
header->LCID = lcid;
header->L1 = (len >> 8) & 0xff;
header->L2 = len & 0xff;
size -= len;
buf += len;
dlsch_total_bytes += len;
}
if (len == 0) {
/* RLC did not have data anymore, mark buffer as unused */
if (sched_ctrl->num_total_bytes >= 256) {
buf -= sizeof(NR_MAC_SUBHEADER_LONG);
size += sizeof(NR_MAC_SUBHEADER_LONG);
} else {
buf -= sizeof(NR_MAC_SUBHEADER_SHORT);
size += sizeof(NR_MAC_SUBHEADER_SHORT);
}
buf -= 3;
size += 3;
}
}
else if (get_softmodem_params()->phy_test || get_softmodem_params()->do_ra || get_softmodem_params()->sa) {