IB/hfi1: Acquire QSFP cable information on loopback (ba81a427) · Commits · 戴 / test

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@intel.com> Signed-off-by:

Jan Sokolowski <jan.sokolowski@intel.com> Signed-off-by:

Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:

Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/hfi1/platform.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -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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