From: Jan Sokolowski <jan.sokolowski@xxxxxxxxx>
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 <dennis.dalessandro@xxxxxxxxx>
Signed-off-by: Jan Sokolowski <jan.sokolowski@xxxxxxxxx>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
---
drivers/infiniband/hw/hfi1/platform.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/platform.c b/drivers/infiniband/hw/hfi1/platform.c
index 8004f1d..a8af96d 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;
}
--
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