Ib/hfi1: Return actual operational VLs in port info query

__subn_get_opa_portinfo stores value returned by hfi1_get_ib_cfg() as
operational vls. hfi1_get_ib_cfg() returns vls_operational field in
hfi1_pportdata. The problem with this is that the value is always equal
to vls_supported field in hfi1_pportdata.

The logic to calculate operational_vls is to set value passed by FM
(in  __subn_set_opa_portinfo routine). If no value is passed then
default value is stored in operational_vls.

Field actual_vls_operational is calculated on the basis of buffer
control table. Hence, modifying hfi1_get_ib_cfg() to return
actual_operational_vls when used with HFI1_IB_CFG_OP_VLS parameter

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Patel Jay P <jay.p.patel@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index 8dd0a4d..b69b85e 100644 (file)
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -9966,7 +9966,7 @@ int hfi1_get_ib_cfg(struct hfi1_pportdata *ppd, int which)
                goto unimplemented;
 
        case HFI1_IB_CFG_OP_VLS:
-               val = ppd->vls_operational;
+               val = ppd->actual_vls_operational;
                break;
        case HFI1_IB_CFG_VL_HIGH_CAP: /* VL arb high priority table size */
                val = VL_ARB_HIGH_PRIO_TABLE_SIZE;