[v0.11.0] [P/D] force with_prefill true after allreduce in kv producer#3835

MengqingCao merged 3 commits intovllm-project:v0.11.0-devvllm-project/vllm-ascend:v0.11.0-devfrom

liziyu179:fix_with_prefill_kv_producer_v0_11_0liziyu179/vllm-ascend:fix_with_prefill_kv_producer_v0_11_0Copy head branch name to clipboard