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Merge remote-tracking branch 'origin/ldpc-aal' into integration_2025_w32 (!3344)

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LDPC BBDEV/AAL rework

This branch aims to generalize the existing LDPC T2 implementation to support
other DPDK BBDEV accelerators, e.g., Intel ACC100/200.

Differences from the current T2 implementation include:
  1. relax CMakeLists.txt checking for custom dpdk-t2 implementation,
     technically, any DPDK BBDEV should work
  2. BBDEV capability checks during init
  3. llr_scaling to scale the input llr accordingly for better decoding
     performance on the Intel ACC100/200
  4. self-managed harq buffers for the ACC200, as internal harq memory is not
     available

Tested BBDEV devices:
  1. Intel ACC100
  2. Intel ACC200/VRB1
This commit is contained in:
Jaroslava Fiedlerova
2025-08-07 12:17:11 +02:00
parent 5555a465fc f6aeb21d97
commit 5ca59d0f48
16 changed files with 1097 additions and 415 deletions
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radio/fhi_72/oran-config.c
+6 -6
View File
@@ -485,19 +485,19 @@ static bool set_fh_io_cfg(struct xran_io_cfg *io_cfg, const paramdef_t *fhip, in
char *shlibversion = NULL; // version of the LDPC coding library
paramdef_t LoaderParams_shlibversion[] = {{"shlibversion", NULL, 0, .strptr = &shlibversion, .defstrval = NULL, TYPE_STRING, 0, NULL}};
config_get(config_get_if(), LoaderParams_shlibversion, sizeofArray(LoaderParams_shlibversion), "loader.ldpc");
if (shlibversion != NULL && strncmp(shlibversion, "_t2", 3) == 0) {
uint32_t eal_init_bbdev = 0; // If not 0 then include the BBDEV device in the EAL init for FHI
if (shlibversion != NULL && strncmp(shlibversion, "_aal", 4) == 0) {
uint32_t is_t2 = 0; // If not 0 then include the BBDEV device in the EAL init for FHI
char *dpdk_dev = NULL; // PCI address of the card
char *vfio_vf_token = NULL; // vfio token for the bbdev card
paramdef_t LoaderParams[] = {
{"eal_init_bbdev", NULL, 0, .uptr = &eal_init_bbdev, .defuintval = 0, TYPE_UINT, 0, NULL},
{"is_t2", NULL, 0, .uptr = &is_t2, .defuintval = 0, TYPE_UINT, 0, NULL},
{"dpdk_dev", NULL, 0, .strptr = &dpdk_dev, .defstrval = NULL, TYPE_STRING, 0, NULL},
{"vfio_vf_token", NULL, 0, .strptr = &vfio_vf_token, .defstrval = NULL, TYPE_STRING, 0, NULL}
};
config_get(config_get_if(), LoaderParams, sizeofArray(LoaderParams), "nrLDPC_coding_t2");
config_get(config_get_if(), LoaderParams, sizeofArray(LoaderParams), "nrLDPC_coding_aal");
if (eal_init_bbdev != 0) {
AssertFatal(dpdk_dev!=NULL, "nrLDPC_coding_t2.dpdk_dev was not provided");
if (!is_t2) {
AssertFatal(dpdk_dev!=NULL, "nrLDPC_coding_aal.dpdk_dev was not provided");
snprintf(&bbdev_dev[0], sizeof(bbdev_dev), "%s", dpdk_dev);
io_cfg->bbdev_dev[0] = &bbdev_dev[0]; // BBDev dev name; max devices = 1
if(vfio_vf_token != NULL) {