From f4be5bcfeacfec56fbd71c9eeb299101eb52b0a2 Mon Sep 17 00:00:00 2001 From: Jan Sokolowski Date: Mon, 28 Aug 2017 11:23:21 -0700 Subject: [PATCH] IB/hfi1: Acquire QSFP cable information on loopback 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 Signed-off-by: Jan Sokolowski Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/platform.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/infiniband/hw/hfi1/platform.c b/drivers/infiniband/hw/hfi1/platform.c index 8004f1da75485..a8af96d2b1b0a 100644 --- a/drivers/infiniband/hw/hfi1/platform.c +++ b/drivers/infiniband/hw/hfi1/platform.c @@ -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; } -- 2.39.5