The primary change in this release is a Rocket-Chip bump in FireChip and associated submodules (Chisel, FIRRTL, RISC-V tools)

The release also updates firesim-software, see the changelog at sw/firesim-software/CHANGELOG.md for details (PR #303).

Added

• PR Flow Control via Ethernet Pause Frames #250. Add support for flow control via Ethernet pause frames.
• PR Runfarm prefix environment variable #280. Add support for a FIRESIM_RUNFARM_PREFIX env var to differentiate between runfarms for multiple clones of firesim.
  • Resolves let users set a global runfarm prefix that applies to an entire instance of firesim (a local working copy) #263
• PR Parameterizable Frequency and Vivado Strategy Selection #286 Add support for arbitrary host frequency selection (by synthesizing a new PLL).
  • Resolves [manager,aws-fpga-firesim] Allow setting arbitrary FPGA frequencies in config #252
• PR Add support for runtime configurable MSHRs in FASED #287 Add support for runtime-configurable MSHR in FASED
• PR Bump Rocket Chip  #290 Add endpoint::finish() to let endpoints run code before simulation teardown
• firesim-software PR Standalone FireMarshal#31 allows firesim-software to work outside of a firesim environment without the need for sudo (just riscv-tools, qemu, and a few package requirements).

Changed

• PR manager print that the post run hook is running #261 Print out that post run hook is running, so it doesn't look like simulation termination is stuck.
• PR Bump Rocket Chip  #290 Bumps RocketChip from 50bb13d (Sept 25th, '18) to b8baef6 (May 10th, '19)
  • Bumps Buildroot in firesim-software; points at upstream
  • Bumps RISC-V tools; RISC-V toolchain is built directly from build-setup.sh
    • Resolves Add C back to toolchain #217
  • Enables TracerV support by default
• firesim-software PR Bump BR for gcc 8.3 support; point submodule at upstream FireMarshal#25 updates buildroot to a more recent version in order to support a more recent version of riscv-tools to match the updated tools in this firesim release.

Fixed

• PR Increases the root volume size of the build instance to 100GB. #275. Fix small root volume size for build instances.
  • Increased to 200GB
  • Resolves Build instance runs out of disk space #274
  • Resolves root volume size on build farm instances can become bottleneck #265
• PR Add support for runtime configurable MSHRs in FASED #287 Fixes FASED LLC timing model bug.
• PR Printf Cycle Count and FASED Functional Model Bugfixes #301 Fixes a bug in synthesizable printf cycle prefixes

Deprecated

• None

Removed

• None

Security

• None