From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dennis Dalessandro Subject: [PATCH for-next 10/13] IB/hfi1: Fix initialization failure for debug firmware Date: Mon, 24 Jul 2017 07:46:24 -0700 Message-ID: <20170724144623.10034.34966.stgit@scvm10.sc.intel.com> References: <20170724144415.10034.26787.stgit@scvm10.sc.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170724144415.10034.26787.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Easwar Hariharan , Jakub Byczkowski , Mike Marciniszyn List-Id: linux-rdma@vger.kernel.org From: Byczkowski, Jakub 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 --- drivers/infiniband/hw/hfi1/firmware.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/firmware.c b/drivers/infiniband/hw/hfi1/firmware.c index 4042c11..83efd6b 100644 --- a/drivers/infiniband/hw/hfi1/firmware.c +++ b/drivers/infiniband/hw/hfi1/firmware.c @@ -615,6 +615,14 @@ static void __obtain_firmware(struct hfi1_devdata *dd) 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) { -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html