diff options
Diffstat (limited to 'drivers/staging/rdma/hfi1/sdma.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/sdma.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/staging/rdma/hfi1/sdma.c b/drivers/staging/rdma/hfi1/sdma.c index 4eb55facfea2..ddaaaacaf038 100644 --- a/drivers/staging/rdma/hfi1/sdma.c +++ b/drivers/staging/rdma/hfi1/sdma.c @@ -890,6 +890,9 @@ int sdma_map_init(struct hfi1_devdata *dd, u8 port, u8 num_vls, u8 *vl_engines) newmap->actual_vls = num_vls; newmap->vls = roundup_pow_of_two(num_vls); newmap->mask = (1 << ilog2(newmap->vls)) - 1; + /* initialize back-map */ + for (i = 0; i < TXE_NUM_SDMA_ENGINES; i++) + newmap->engine_to_vl[i] = -1; for (i = 0; i < newmap->vls; i++) { /* save for wrap around */ int first_engine = engine; @@ -913,6 +916,9 @@ int sdma_map_init(struct hfi1_devdata *dd, u8 port, u8 num_vls, u8 *vl_engines) /* wrap back to first engine */ engine = first_engine; } + /* assign back-map */ + for (j = 0; j < vl_engines[i]; j++) + newmap->engine_to_vl[first_engine + j] = i; } else { /* just re-use entry without allocating */ newmap->map[i] = newmap->map[i % num_vls]; |