From a156abb3cf14112d3aa3f3a9ba880d48cf064cef Mon Sep 17 00:00:00 2001 From: "Byczkowski, Jakub" Date: Mon, 24 Jul 2017 07:46:24 -0700 Subject: [PATCH] IB/hfi1: Fix initialization failure for debug firmware Loading debug signed firmware fails if started immediately after failed attempt to load production firmware. A short delay is required so add about a 100us delay after RSA check failure. Reviewed-by: Dennis Dalessandro Reviewed-by: Easwar Hariharan Reviewed-by: Mike Marciniszyn Signed-off-by: Jakub Byczkowski Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/firmware.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/infiniband/hw/hfi1/firmware.c b/drivers/infiniband/hw/hfi1/firmware.c index 4042c11b2742..83efd6bec657 100644 --- a/drivers/infiniband/hw/hfi1/firmware.c +++ b/drivers/infiniband/hw/hfi1/firmware.c @@ -615,6 +615,14 @@ retry: fw_fabric_serdes_name = ALT_FW_FABRIC_NAME; fw_sbus_name = ALT_FW_SBUS_NAME; fw_pcie_serdes_name = ALT_FW_PCIE_NAME; + + /* + * Add a delay before obtaining and loading debug firmware. + * Authorization will fail if the delay between firmware + * authorization events is shorter than 50us. Add 100us to + * make a delay time safe. + */ + usleep_range(100, 120); } if (fw_sbus_load) { -- 2.30.2