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IB/hfi1: Do not set physical link state if DC is in the shutdown state 

If the DC is in shutdown state, the set link state function will return
an error.  Since this is not a failure in this state, make sure to
only call set link state if the DC is on.

Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Michael J. Ruhl 2017-02-08 05:28:13 -08:00 committed by Doug Ledford
parent c27aad00d1
commit db069ecb5d
1 changed files with 10 additions and 8 deletions
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18
drivers/infiniband/hw/hfi1/chip.c
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@ -10510,16 +10510,18 @@ int set_link_state(struct hfi1_pportdata *ppd, u32 state)
ppd->remote_link_down_reason = 0;
}
ret1 = set_physical_link_state(dd, PLS_DISABLED);
if (ret1 != HCMD_SUCCESS) {
dd_dev_err(dd,
"Failed to transition to Disabled link state, return 0x%x\n",
ret1);
ret = -EINVAL;
break;
if (!dd->dc_shutdown) {
ret1 = set_physical_link_state(dd, PLS_DISABLED);
if (ret1 != HCMD_SUCCESS) {
dd_dev_err(dd,
"Failed to transition to Disabled link state, return 0x%x\n",
ret1);
ret = -EINVAL;
break;
}
dc_shutdown(dd);
}
ppd->host_link_state = HLS_DN_DISABLE;
dc_shutdown(dd);
break;
case HLS_DN_OFFLINE:
if (ppd->host_link_state == HLS_DN_DISABLE)