From: Easwar Hariharan easwar.hariharan@intel.com
[ Upstream commit fb897ad315643e5dc1092a115b3cec914b66df9d ]
Attempting to read the status of a QSFP cable creates noise in the logs and misses out on setting an appropriate Offline/Disabled Reason if the cable is not plugged in. Check for this prior to attempting the read and attendant retries.
Fixes: 673b975f1fba ("IB/hfi1: Add QSFP sanity pre-check") Reviewed-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Easwar Hariharan easwar.hariharan@intel.com Signed-off-by: Dennis Dalessandro dennis.dalessandro@intel.com Signed-off-by: Doug Ledford dledford@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/infiniband/hw/hfi1/chip.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index 4682909b021b..3be62ef154d1 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -9489,8 +9489,11 @@ static int test_qsfp_read(struct hfi1_pportdata *ppd) int ret; u8 status;
- /* report success if not a QSFP */ - if (ppd->port_type != PORT_TYPE_QSFP) + /* + * Report success if not a QSFP or, if it is a QSFP, but the cable is + * not present + */ + if (ppd->port_type != PORT_TYPE_QSFP || !qsfp_mod_present(ppd)) return 0;
/* read byte 2, the status byte */