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staging/rdma/hfi1: Don't attempt to qualify or tune loopback plugs

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Loopback plugs used for testing hardware don't need to be qualified to
bring the link up unlike production cables. This patch adds an exception
for loopback plugs to the QSFP and SerDes tuning algortihm.

Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Easwar Hariharan 2016-02-03 14:32:14 -08:00 committed by Doug Ledford
parent fe072e205a
commit 715c430ca5
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/rdma/hfi1/platform.c
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@ -737,7 +737,8 @@ void tune_serdes(struct hfi1_pportdata *ppd)
ppd->driver_link_ready = 0;
ppd->offline_disabled_reason = HFI1_ODR_MASK(OPA_LINKDOWN_REASON_NONE);
if (loopback == LOOPBACK_SERDES || loopback == LOOPBACK_LCB ||
/* Skip the tuning for testing (loopback != none) and simulations */
if (loopback != LOOPBACK_NONE ||
ppd->dd->icode == ICODE_FUNCTIONAL_SIMULATOR ||
!dd->pcfg_cache.cache_valid) {
ppd->driver_link_ready = 1;