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IB/hfi1: Do not enable disabled port on cable insert

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Fix issue where a disabled port can be enabled by
inserting a cable. The port should be explicitly
enabled instead.

Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jan Sokolowski 2017-07-29 08:43:26 -07:00 committed by Doug Ledford
parent 5efd40cad4
commit 96603ed865
1 changed files with 7 additions and 6 deletions
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13
drivers/infiniband/hw/hfi1/chip.c
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@ -9306,12 +9306,6 @@ int start_link(struct hfi1_pportdata *ppd)
*/
tune_serdes(ppd);
if (!ppd->link_enabled) {
dd_dev_info(ppd->dd,
"%s: stopping link start because link is disabled\n",
__func__);
return 0;
}
if (!ppd->driver_link_ready) {
dd_dev_info(ppd->dd,
"%s: stopping link start because driver is not ready\n",
@ -9529,6 +9523,13 @@ void qsfp_event(struct work_struct *work)
if (!qsfp_mod_present(ppd))
return;
if (ppd->host_link_state == HLS_DN_DISABLE) {
dd_dev_info(ppd->dd,
"%s: stopping link start because link is disabled\n",
__func__);
return;
}
/*
* Turn DC back on after cable has been re-inserted. Up until
* now, the DC has been in reset to save power.