From 96603ed865b3c5a9a0d1c9ed434661519d49fde3 Mon Sep 17 00:00:00 2001 From: Jan Sokolowski Date: Sat, 29 Jul 2017 08:43:26 -0700 Subject: [PATCH] IB/hfi1: Do not enable disabled port on cable insert Fix issue where a disabled port can be enabled by inserting a cable. The port should be explicitly enabled instead. Reviewed-by: Michael J. Ruhl Reviewed-by: Jakub Byczkowski Signed-off-by: Jan Sokolowski Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/chip.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index eca31dd49cae..bd594e7b0078 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -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. -- 2.11.0