On Tue, Jun 23, 2026 at 10:28:41AM +0530, Rupesh Chiluka wrote: > Refuse to run DMA/CPU mem-copy cases when any worker is bound to the > EAL main lcore. >
Can you explain a bit more why? > Signed-off-by: Rupesh Chiluka <[email protected]> > --- > app/test-dma-perf/main.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/app/test-dma-perf/main.c b/app/test-dma-perf/main.c > index 4249dcfd3d..b6aa5b8401 100644 > --- a/app/test-dma-perf/main.c > +++ b/app/test-dma-perf/main.c > @@ -109,6 +109,7 @@ run_test_case(struct test_configure *case_cfg) > static void > run_test(uint32_t case_id, struct test_configure *case_cfg) > { > + uint32_t main_lcore = rte_get_main_lcore(); > uint32_t nb_lcores = rte_lcore_count(); > struct test_configure_entry *mem_size = &case_cfg->mem_size; > struct test_configure_entry *buf_size = &case_cfg->buf_size; > @@ -122,6 +123,14 @@ run_test(uint32_t case_id, struct test_configure > *case_cfg) > return; > } > > + for (uint32_t i = 0; i < case_cfg->num_worker; i++) { > + if (case_cfg->dma_config[i].lcore_dma_map.lcore == main_lcore) { > + printf("Case %u: worker %u cannot run on the EAL main > lcore (%u).\n", > + case_id, i, main_lcore); > + return; > + } > + } > + > printf("Number of used lcores: %u.\n", nb_lcores); > > if (mem_size->incr != 0) > -- > 2.48.1 >
