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O-RAN 7.2: make DPDK system core configurable

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system_core is the core reserved for DPDK control threads. It was
hardcoded to 0, but it seems that one some systems, CPU 0 cannot be
reasonably isolated from kernel threads. Make it therefore configurable
(default: 0)

Closes: #732 (suggestion 1)
Suggested-by: Andrew Sergeev <andrew.sergeev@adtran.com>
This commit is contained in:
Robert Schmidt
2024-02-09 12:42:21 +01:00
parent 0fb0a9a48e
commit b32b9e836f
6 changed files with 8 additions and 1 deletions
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radio/fhi_72/oran-config.c
+1 -1
View File
@@ -500,7 +500,7 @@ static bool set_fh_io_cfg(struct xran_io_cfg *io_cfg, const paramdef_t *fhip, in
io_cfg->dpdkIoVaMode = 0; /* IOVA mode */
io_cfg->dpdkMemorySize = 0; /* DPDK memory size */
io_cfg->core = *gpd(fhip, nump, ORAN_CONFIG_IO_CORE)->iptr;
io_cfg->system_core = 0; /* TODO how called in sample app? */
io_cfg->system_core = *gpd(fhip, nump, ORAN_CONFIG_SYSTEM_CORE)->iptr;
io_cfg->pkt_proc_core = get_u64_mask(gpd(fhip, nump, ORAN_CONFIG_WORKER_CORES));
io_cfg->pkt_proc_core_64_127 = 0x0; // bitmap 0 -> no core
io_cfg->pkt_aux_core = 0; /* sapmle app says 0 = "do not start" */
radio/fhi_72/oran-params.h
+2
View File
@@ -28,6 +28,7 @@
#define CONFIG_STRING_ORAN "fhi_72"
#define ORAN_CONFIG_DPDK_DEVICES "dpdk_devices"
#define ORAN_CONFIG_SYSTEM_CORE "system_core"
#define ORAN_CONFIG_IO_CORE "io_core"
#define ORAN_CONFIG_WORKER_CORES "worker_cores"
#define ORAN_CONFIG_DU_ADDR "du_addr"
@@ -42,6 +43,7 @@
// TODO: ethernet addr check
#define ORAN_GLOBALPARAMS_DESC { \
{ORAN_CONFIG_DPDK_DEVICES, "PCI addr of devices for DPDK\n", PARAMFLAG_MANDATORY, .strlistptr=NULL, .defstrlistval=NULL, TYPE_STRINGLIST, 0}, \
{ORAN_CONFIG_SYSTEM_CORE, "DPDK control threads core\n", PARAMFLAG_MANDATORY, .iptr=NULL, .defintval=0, TYPE_INT, 0}, \
{ORAN_CONFIG_IO_CORE, "DPDK Core used for IO\n", PARAMFLAG_MANDATORY, .iptr=NULL, .defintval=4, TYPE_INT, 0}, \
{ORAN_CONFIG_WORKER_CORES, "CPU Cores to use for workers\n", PARAMFLAG_MANDATORY, .uptr=NULL, .defintarrayval=NULL,TYPE_UINTARRAY, 0}, \
{ORAN_CONFIG_DU_ADDR, "Ether addr of DU\n", PARAMFLAG_MANDATORY, .strlistptr=NULL, .defstrlistval=NULL, TYPE_STRINGLIST, 0}, \