ci modifications

.travis.yml

@@ -1,23 +1,28 @@
 language: rust
-dist: trusty
-sudo: false
+dist: focal
+sudo: true
+group: edge
+script:
+  - ./scripts/ci.sh
+  - cargo build --verbose
+  - cargo test --verbose
 addons:
   apt:
     packages:
+    - cmake
+    - cmake-data
+    - gcc-10
+    - ibverbs-providers
+    - iproute2
+    - jq
     - libibverbs1
-    - ninja-build
     - libnl-3-dev
     - libnl-genl-3-dev
     - libnl-route-3-dev
     - libudev-dev
-    - cmake
-    - cmake-data
-    - gcc-5
-    sources:
-    - ubuntu-toolchain-r-test
-    - george-edison55-precise-backports # cmake 3.2.3
+    - ninja-build
 env:
-  - LLVM_VERSION=3.9.0
+  - RUST_BACKTRACE=1
 rust:
   - nightly
   - beta

scripts/ci.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# This is the script run by CI.
+
+set -euxETo pipefail
+
+# Define the name of the SoftRoCE device we would like to create for integration testing.
+declare -r RXE_INTERFACE_NAME="rust_ibverbs"
+
+# We need to install linux-modules-extra for our current kernel or else we don't have access to the rdma_rxe module in
+# CI.
+sudo apt-get install --yes linux-modules-extra-"$(uname --kernel-release)"
+sudo ./scripts/make-rdma-loopback.sh "${RXE_INTERFACE_NAME}"

scripts/make-rdma-loopback.sh

@@ -1,12 +1,14 @@
 #!/usr/bin/env bash
+# This script sets up a simple SoftRoCE device to facilitate testing.
 
 set -euxETo pipefail
 
-declare -r RXE_INTERFACE_NAME="rust_ibverbs"
+# Configuration
+declare -r RXE_INTERFACE_NAME="${1}"
 
 # Print an error message
-log_err() {
-  >&2 echo "${*}"
+log() {
+  >&2 printf "%s\n" "${*}"
 }
 
 # Determine if netns state of rdma devices is shared or exclusive
@@ -22,13 +24,49 @@ confirm_rdma_netns_shared() {
   access="$(get_rdma_netns_state)"
   declare -r access
   if [[ "${access}" != "shared" ]]; then
-    log_err "rdma netns state is not shared: current state ${access}"
+    log "rdma netns state is not shared: current state ${access}"
     return 1
   fi
 }
 
-confirm_rdma_netns_shared
-ip link add root type dummy
-ip link add link root name "${RXE_INTERFACE_NAME}" type macvlan mode bridge
-rdma link add "${RXE_INTERFACE_NAME}" type rxe netdev "${RXE_INTERFACE_NAME}"
-ip link set group default up
+# Set up a SoftRoCE loopback device.  To do this we create a dummy device and then hang a macvlan in bridge mode off of
+# that dummy device.  This strategy allows all ordinary network traffic transmitted to the macvlan to be sent back to
+# that macvlan.  We then add a rxe device to the macvlan so that RDMA traffic can be exchanged as well.
+set_up_soft_roce_loopback_device() {
+  declare -r DEVICE="${1}"
+  modprobe rdma_rxe
+  ip link add root type dummy
+  ip link add link root name "${DEVICE}" type macvlan mode bridge
+  rdma link add "${DEVICE}" type rxe netdev "${DEVICE}"
+  log "Added SoftRoCE link ${DEVICE}"
+  ip link set dev root up
+  ip link set dev "${DEVICE}" up
+}
+
+# Get state of RDMA device supplied in first argument.
+get_rdma_device_state() {
+  rdma --json link | jq --raw-output --arg device "${1}" '.[] | select(.ifname == $device).state'
+}
+
+wait_for_rdma_device_to_be_ready() {
+  declare -r DEVICE="${1}"
+  declare -ri MAX_RETRY_COUNT=100
+  declare -i RETRY_COUNT=0
+  until [[ "$(get_rdma_device_state "${DEVICE}")" == "ACTIVE" ]]; do
+    log "waiting for ${DEVICE} RDMA device to be active"
+    RETRY_COUNT+=1
+    if [[ "${RETRY_COUNT}" -gt "${MAX_RETRY_COUNT}" ]]; then
+      log "Timed out waiting for RDMA device ${DEVICE} to be ready"
+      return 1
+    fi
+    sleep 0.1
+  done
+}
+
+main() {
+  confirm_rdma_netns_shared
+  set_up_soft_roce_loopback_device "${RXE_INTERFACE_NAME}"
+  wait_for_rdma_device_to_be_ready "${RXE_INTERFACE_NAME}"
+}
+
+main