cpu_list_0 = cpu_list[:cpu_list_len // CpuUtils.NR_OF_THREADS]
cpu_list_1 = cpu_list[cpu_list_len // CpuUtils.NR_OF_THREADS:]
cpu_range = f"{cpu_list_0[0]}{sep}{cpu_list_0[-1]}," \
- f"{cpu_list_1[0]}{sep}{cpu_list_1[-1]}"
+ f"{cpu_list_1[0]}{sep}{cpu_list_1[-1]}"
else:
cpu_range = f"{cpu_list[0]}{sep}{cpu_list[-1]}"
result[0:0] = cpu_list[mt_skip:mt_skip + 1]
return result
+ @staticmethod
+ def get_affinity_af_xdp(
+ node, pf_key, cpu_skip_cnt=0, cpu_cnt=1):
+ """Get affinity for AF_XDP interface. Result will be used to pin IRQs.
+
+ :param node: Topology node.
+ :param pf_key: Topology interface.
+ :param cpu_skip_cnt: Amount of CPU cores to skip.
+ :param cpu_cnt: CPU threads count.
+ :type node: dict
+ :type pf_key: str
+ :type cpu_skip_cnt: int
+ :type cpu_cnt: int
+ :returns: List of CPUs allocated to AF_XDP interface.
+ :rtype: list
+ """
+ if pf_key:
+ cpu_node = Topology.get_interface_numa_node(node, pf_key)
+ else:
+ cpu_node = 0
+
+ smt_used = CpuUtils.is_smt_enabled(node[u"cpuinfo"])
+ if smt_used:
+ cpu_cnt = cpu_cnt // CpuUtils.NR_OF_THREADS
+
+ return CpuUtils.cpu_slice_of_list_per_node(
+ node, cpu_node, skip_cnt=cpu_skip_cnt, cpu_cnt=cpu_cnt,
+ smt_used=smt_used
+ )
+
@staticmethod
def get_affinity_nf(
nodes, node, nf_chains=1, nf_nodes=1, nf_chain=1, nf_node=1,
return CpuUtils.cpu_slice_of_list_per_node(
node, cpu_node=cpu_node, skip_cnt=skip_cnt, cpu_cnt=cpu_cnt,
smt_used=False)
+
+ @staticmethod
+ def get_cpu_idle_list(node, cpu_node, smt_used, cpu_alloc_str, sep=u","):
+ """
+ Get idle CPU List
+ :param node: Node dictionary with cpuinfo.
+ :param cpu_node: Numa node number.
+ :param smt_used: True - we want to use SMT, otherwise false.
+ :param cpu_alloc_str: vpp used cores.
+ :param sep: Separator, default: ",".
+ :type node: dict
+ :type cpu_node: int
+ :type smt_used: bool
+ :type cpu_alloc_str: str
+ :type smt_used: bool
+ :type sep: str
+ :rtype: list
+ """
+ cpu_list = CpuUtils.cpu_list_per_node(node, cpu_node, smt_used)
+ cpu_idle_list = [i for i in cpu_list
+ if str(i) not in cpu_alloc_str.split(sep)]
+ return cpu_idle_list