From 715c430ca5b21c22648665045fc3718b4547d5c8 Mon Sep 17 00:00:00 2001 From: Easwar Hariharan Date: Wed, 3 Feb 2016 14:32:14 -0800 Subject: [PATCH] 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: Dean Luick Signed-off-by: Easwar Hariharan Signed-off-by: Doug Ledford --- drivers/staging/rdma/hfi1/platform.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/rdma/hfi1/platform.c b/drivers/staging/rdma/hfi1/platform.c index 9aa5e06633de..c3df1d892754 100644 --- a/drivers/staging/rdma/hfi1/platform.c +++ b/drivers/staging/rdma/hfi1/platform.c @@ -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; -- 2.20.1