IB/hfi1: Do not enable disabled port on cable insert (96603ed8) · Commits · 戴 / test

Fix issue where a disabled port can be enabled by inserting a cable. The port should be explicitly enabled instead. Reviewed-by:

drivers/infiniband/hw/hfi1/chip.c

+7 −6

Original line number	Diff line number	Diff line
		@@ -9306,12 +9306,6 @@ int start_link(struct hfi1_pportdata *ppd)
		*/
		tune_serdes(ppd);

		if (!ppd->link_enabled) {
		dd_dev_info(ppd->dd,
		"%s: stopping link start because link is disabled\n",
		__func__);
		return 0;
		}
		if (!ppd->driver_link_ready) {
		dd_dev_info(ppd->dd,
		"%s: stopping link start because driver is not ready\n",
		@@ -9529,6 +9523,13 @@ void qsfp_event(struct work_struct *work)
		if (!qsfp_mod_present(ppd))
		return;

		if (ppd->host_link_state == HLS_DN_DISABLE) {
		dd_dev_info(ppd->dd,
		"%s: stopping link start because link is disabled\n",
		__func__);
		return;
		}

		/*
		* Turn DC back on after cable has been re-inserted. Up until
		* now, the DC has been in reset to save power.