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

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[ Upstream commit 00f9203119dd2774564407c7a67b17d81916298b ]

__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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Patel Jay P 2017-10-23 06:05:53 -07:00 committed by Greg Kroah-Hartman
parent d5860344c2
commit 7d1beb462e
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/hfi1/chip.c
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@ -9952,7 +9952,7 @@ 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;