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sdma_select_user_engine(): refactor selection code

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Balazs Gerofi
2018-01-30 11:57:24 +09:00
parent 32fbc015f5
commit 20e179f6dc
1 changed files with 9 additions and 2 deletions
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11
kernel/sdma.c
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@@ -115,13 +115,20 @@ done:
struct sdma_engine *sdma_select_user_engine(struct hfi1_devdata *dd, struct sdma_engine *sdma_select_user_engine(struct hfi1_devdata *dd,
u32 selector, u8 vl) u32 selector, u8 vl)
{ {
int idx = 0;
int idx_start = 0;
int idx_modulo = 16;
/* Hash on rank for MPI jobs */ /* Hash on rank for MPI jobs */
if (cpu_local_var(current)->proc->nr_processes > 1) { if (cpu_local_var(current)->proc->nr_processes > 1) {
return &dd->per_sdma[cpu_local_var(current)->proc->process_rank % 16]; idx = idx_start +
(cpu_local_var(current)->proc->process_rank % idx_modulo);
} }
else { else {
return &dd->per_sdma[ihk_mc_get_processor_id() % 16]; idx = ihk_mc_get_processor_id() % idx_modulo;
} }
return &dd->per_sdma[idx];
} }
/* /*