1*0246388bSLee Trager.. SPDX-License-Identifier: GPL-2.0+ 2*0246388bSLee Trager 3*0246388bSLee Trager===================================== 4*0246388bSLee TragerMeta Platforms Host Network Interface 5*0246388bSLee Trager===================================== 6*0246388bSLee Trager 7*0246388bSLee TragerFirmware Versions 8*0246388bSLee Trager----------------- 9*0246388bSLee Trager 10*0246388bSLee Tragerfbnic has three components stored on the flash which are provided in one PLDM 11*0246388bSLee Tragerimage: 12*0246388bSLee Trager 13*0246388bSLee Trager1. fw - The control firmware used to view and modify firmware settings, request 14*0246388bSLee Trager firmware actions, and retrieve firmware counters outside of the data path. 15*0246388bSLee Trager This is the firmware which fbnic_fw.c interacts with. 16*0246388bSLee Trager2. bootloader - The firmware which validate firmware security and control basic 17*0246388bSLee Trager operations including loading and updating the firmware. This is also known 18*0246388bSLee Trager as the cmrt firmware. 19*0246388bSLee Trager3. undi - This is the UEFI driver which is based on the Linux driver. 20*0246388bSLee Trager 21*0246388bSLee Tragerfbnic stores two copies of these three components on flash. This allows fbnic 22*0246388bSLee Tragerto fall back to an older version of firmware automatically in case firmware 23*0246388bSLee Tragerfails to boot. Version information for both is provided as running and stored. 24*0246388bSLee TragerThe undi is only provided in stored as it is not actively running once the Linux 25*0246388bSLee Tragerdriver takes over. 26*0246388bSLee Trager 27*0246388bSLee Tragerdevlink dev info provides version information for all three components. In 28*0246388bSLee Trageraddition to the version the hg commit hash of the build is included as a 29*0246388bSLee Tragerseparate entry. 30