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IB/hfi1: Acquire QSFP cable information on loopback

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Currently, QSFP information is not queried
in cases where loopback was set up and QSFP module is
present.

Acquire QSFP information in case of loopback.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@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 2017-08-28 11:23:21 -07:00 committed by Doug Ledford
parent cfeca08faf
commit ba81a427c3
1 changed files with 15 additions and 0 deletions
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15
drivers/infiniband/hw/hfi1/platform.c
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@ -944,6 +944,21 @@ void tune_serdes(struct hfi1_pportdata *ppd)
if (loopback != LOOPBACK_NONE ||
ppd->dd->icode == ICODE_FUNCTIONAL_SIMULATOR) {
ppd->driver_link_ready = 1;
if (qsfp_mod_present(ppd)) {
ret = acquire_chip_resource(ppd->dd,
qsfp_resource(ppd->dd),
QSFP_WAIT);
if (ret) {
dd_dev_err(ppd->dd, "%s: hfi%d: cannot lock i2c chain\n",
__func__, (int)ppd->dd->hfi1_id);
goto bail;
}
refresh_qsfp_cache(ppd, &ppd->qsfp_info);
release_chip_resource(ppd->dd, qsfp_resource(ppd->dd));
}
return;
}