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Fronthaul xran library F release support

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Major improvements:
  1) bbu_offload - enable packet handling on BBU cores
  2) dlCpProcBurst - DL CP processing on one or more symbols
  3) SRS CP processing - depends on the RU capabilities that can be
    retreived via M-plane (if RU is CAT B)
  4) nSecDesc - the number of section descriptors per symbol; it was hardcoded to 0 in E release;
    depends on the RU capabilities that can be retreived via M-plane
  5) RunSlotPrbMapBySymbolEnable - enable PRB mapping by symbol with multisection;
    depends on the RU capabilities that can be retreived via M-plane
  6) DSS (Dynamic Spectrum Sharing) support - depends on the RU capabilities that can be retreived via M-plane

Minor fixes in F that exist in E:
  1) prach_config->nPrachFilterIdx - explained in commit ID f3045396
  2) T1a_min_cp_dl - explained in the commit under title "Clarification on DU delay profile"
  3) fh_config->nULRBs - explained in commit under title "Further clarification on xran E release parameters"

Removed const for prb_conf argument in oran_allocate_cplane_buffers()
function, as F release requires the not const struct for
xran_init_PrbMap_by_symbol_from_cfg() and xran_init_PrbMap_from_cfg()
even though the struct is not modified inside of these functions.
This commit is contained in:
Teodora
2024-12-05 22:59:58 +01:00
parent 197db6a65f
commit 574b3eb348
5 changed files with 649 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files
radio/fhi_72/oran-init.c
+54 -14
View File
@@ -140,10 +140,10 @@ static uint32_t oran_allocate_uplane_buffers(
{
xran_status_t status;
uint32_t pool;
// we need at least XRAN_N_FE_BUF_LEN * ant * XRAN_NUM_OF_SYMBOL_PER_SLOT
// buffers, but xran_bm_init() uses rte_pktmbuf_pool_create() which
// recommends to use a power of two for the buffers
uint32_t numBufs = next_power_2(XRAN_N_FE_BUF_LEN * ant * XRAN_NUM_OF_SYMBOL_PER_SLOT);
/* xran_bm_init() uses rte_pktmbuf_pool_create() which recommends to use a power of two for the buffers;
the E release sample app didn't take this into account, but we introduced it ourselves;
the F release sample app took this into account, so we can proudly say we assumed correctly */
uint32_t numBufs = next_power_2(XRAN_N_FE_BUF_LEN * ant * XRAN_NUM_OF_SYMBOL_PER_SLOT) - 1;
status = xran_bm_init(instHandle, &pool, numBufs, bufSize);
AssertFatal(XRAN_STATUS_SUCCESS == status, "Failed at xran_bm_init(), status %d\n", status);
printf("xran_bm_init() hInstance %p poolIdx %u elements %u size %u\n", instHandle, pool, numBufs, bufSize);
@@ -217,26 +217,33 @@ static void oran_allocate_cplane_buffers(void *instHandle,
struct xran_flat_buffer buf[XRAN_MAX_ANTENNA_NR][XRAN_N_FE_BUF_LEN],
uint32_t ant,
uint32_t sect,
#ifdef F_RELEASE
uint32_t mtu,
const struct xran_fh_config *fh_config,
#endif
uint32_t size_of_prb_map,
const oran_cplane_prb_config *prb_conf)
oran_cplane_prb_config *prb_conf)
{
xran_status_t status;
uint32_t count1 = 0;
#ifdef E_RELEASE
uint32_t count2 = 0;
uint32_t poolSec;
uint32_t numBufsSec = next_power_2(XRAN_N_FE_BUF_LEN * ant * XRAN_NUM_OF_SYMBOL_PER_SLOT * sect * XRAN_MAX_FRAGMENT);
uint32_t bufSizeSec = sizeof(struct xran_section_desc);
status = xran_bm_init(instHandle, &poolSec, numBufsSec, bufSizeSec);
AssertFatal(XRAN_STATUS_SUCCESS == status, "Failed at xran_bm_init(), status %d\n", status);
printf("xran_bm_init() hInstance %p poolIdx %u elements %u size %u\n", instHandle, poolSec, numBufsSec, bufSizeSec);
#endif
uint32_t poolPrb;
uint32_t numBufsPrb = next_power_2(XRAN_N_FE_BUF_LEN * ant * XRAN_NUM_OF_SYMBOL_PER_SLOT);
uint32_t numBufsPrb = next_power_2(XRAN_N_FE_BUF_LEN * ant * XRAN_NUM_OF_SYMBOL_PER_SLOT) - 1;
uint32_t bufSizePrb = size_of_prb_map;
status = xran_bm_init(instHandle, &poolPrb, numBufsPrb, bufSizePrb);
AssertFatal(XRAN_STATUS_SUCCESS == status, "Failed at xran_bm_init(), status %d\n", status);
printf("xran_bm_init() hInstance %p poolIdx %u elements %u size %u\n", instHandle, poolPrb, numBufsPrb, bufSizePrb);
uint32_t count1 = 0;
uint32_t count2 = 0;
for (uint32_t a = 0; a < ant; a++) {
for (uint32_t j = 0; j < XRAN_N_FE_BUF_LEN; ++j) {
list[a][j].pBuffers = &buf[a][j];
@@ -254,13 +261,15 @@ static void oran_allocate_cplane_buffers(void *instHandle,
fb->pData = ptr;
fb->pCtrl = mb;
// the original sample app code copies up to size_of_prb_map, but I think
// this is wrong because the way it is computed leads to a number larger
// than sizeof(map)
struct xran_prb_map *p_rb_map = (struct xran_prb_map *)ptr;
const struct xran_prb_map *src = &prb_conf->slotMap;
struct xran_prb_map *src = &prb_conf->slotMap;
if ((j % prb_conf->nTddPeriod) == prb_conf->mixed_slot_index)
src = &prb_conf->mixedSlotMap;
#ifdef E_RELEASE
/* as per E release sample app, the memory is copied up to size_of_prb_map
which translates to >= sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm)*5,
but we assume that RB allocation is done as 1 RE/UE so the total memory size is sizeof(struct xran_prb_map);
this is improved in F release */
struct xran_prb_map *p_rb_map = (struct xran_prb_map *)ptr;
memcpy(p_rb_map, src, sizeof(*src));
for (uint32_t elm_id = 0; elm_id < p_rb_map->nPrbElm; ++elm_id) {
@@ -282,10 +291,19 @@ static void oran_allocate_cplane_buffers(void *instHandle,
}
}
}
#elif defined F_RELEASE
if (fh_config->RunSlotPrbMapBySymbolEnable) {
xran_init_PrbMap_by_symbol_from_cfg(src, ptr, mtu, fh_config->nDLRBs);
} else {
xran_init_PrbMap_from_cfg(src, ptr, mtu);
}
#endif
}
}
printf("xran_bm_allocate_buffer() hInstance %p poolIdx %u count %u\n", instHandle, poolPrb, count1);
#ifdef E_RELEASE
printf("xran_bm_allocate_buffer() hInstance %p poolIdx %u count %u\n", instHandle, poolSec, count2);
#endif
}
/* callback not actively used */
@@ -298,6 +316,9 @@ static void oran_allocate_buffers(void *handle,
int xran_inst,
int num_sectors,
oran_port_instance_t *portInstances,
#ifdef F_RELEASE
uint32_t mtu,
#endif
const struct xran_fh_config *fh_config)
{
AssertFatal(num_sectors == 1, "only support one sector at the moment\n");
@@ -305,7 +326,6 @@ static void oran_allocate_buffers(void *handle,
AssertFatal(handle != NULL, "no handle provided\n");
uint32_t xran_max_antenna_nr = RTE_MAX(fh_config->neAxc, fh_config->neAxcUl);
uint32_t xran_max_sections_per_slot = RTE_MAX(fh_config->max_sections_per_slot, XRAN_MIN_SECTIONS_PER_SLOT);
uint32_t size_of_prb_map = sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm) * (xran_max_sections_per_slot - 1);
pi->buf_list = _mm_malloc(sizeof(*pi->buf_list), 256);
AssertFatal(pi->buf_list != NULL, "out of memory\n");
@@ -331,11 +351,23 @@ static void oran_allocate_buffers(void *handle,
.slotMap = dlPm,
.mixedSlotMap = dlPmMixed,
};
#ifdef E_RELEASE
uint32_t size_of_prb_map = sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm) * (xran_max_sections_per_slot - 1);
#elif defined F_RELEASE
uint32_t numPrbElm = xran_get_num_prb_elm(&dlPmMixed, mtu);
uint32_t size_of_prb_map = sizeof(struct xran_prb_map) + sizeof(struct xran_prb_elm) * (numPrbElm);
#endif
oran_allocate_cplane_buffers(pi->instanceHandle,
bl->srccp,
bl->bufs.tx_prbmap,
xran_max_antenna_nr,
xran_max_sections_per_slot,
#ifdef F_RELEASE
mtu,
fh_config,
#endif
size_of_prb_map,
&dlConf);
@@ -357,6 +389,10 @@ static void oran_allocate_buffers(void *handle,
bl->bufs.rx_prbmap,
xran_max_antenna_nr,
xran_max_sections_per_slot,
#ifdef F_RELEASE
mtu,
fh_config,
#endif
size_of_prb_map,
&ulConf);
@@ -422,7 +458,11 @@ int *oai_oran_initialize(struct xran_fh_init *xran_fh_init, struct xran_fh_confi
struct xran_cb_tag tag = {.cellId = sector, .oXuId = o_xu_id};
pi->prach_tag = tag;
pi->pusch_tag = tag;
#ifdef E_RELEASE
oran_allocate_buffers(gxran_handle, o_xu_id, 1, pi, &xran_fh_config[o_xu_id]);
#elif defined F_RELEASE
oran_allocate_buffers(gxran_handle, o_xu_id, 1, pi, xran_fh_init->mtu, &xran_fh_config[o_xu_id]);
#endif
if ((xret = xran_reg_physide_cb(gxran_handle, oai_physide_dl_tti_call_back, NULL, 10, XRAN_CB_TTI)) != XRAN_STATUS_SUCCESS) {
printf("xran_reg_physide_cb failed %d\n", xret);