Commit 715c430c authored by Easwar Hariharan's avatar Easwar Hariharan Committed by Doug Ledford
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staging/rdma/hfi1: Don't attempt to qualify or tune loopback plugs

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: default avatarDean Luick <>
Signed-off-by: default avatarEaswar Hariharan <>
Signed-off-by: default avatarDoug Ledford <>
parent fe072e20
......@@ -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 ||
!dd->pcfg_cache.cache_valid) {
ppd->driver_link_ready = 1;
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