# OVS_DPDK_PRE_CHECK()
#
# Check prerequisites for DPDK tests. Following settings are checked:
#  - Hugepages
#
m4_define([OVS_DPDK_PRE_CHECK],
  [dnl Check Hugepages
   AT_CHECK([cat /proc/meminfo], [], [stdout])
   AT_SKIP_IF([grep -E 'HugePages_Free: *0' stdout], [], [stdout])
   AT_CHECK([mount], [], [stdout])
   AT_CHECK([grep 'hugetlbfs' stdout], [], [stdout], [])

])


# OVS_DPDK_PRE_PHY_SKIP()
#
# Skip any phy related tests if the PHY variable is not set.
# This is done by checking for a bound driver.
#
m4_define([OVS_DPDK_PRE_PHY_SKIP],
  [dnl Perform the precheck
   OVS_DPDK_PRE_CHECK()

   dnl Check if VFIO or UIO driver is loaded
   AT_SKIP_IF([ ! (lsmod | grep -E "igb_uio|vfio") ], [], [stdout])

   dnl Find PCI address candidate, skip if there is no DPDK-compatible NIC
   AT_CHECK([$DPDK_DIR/usertools/dpdk-devbind.py -s | head -n +4 | tail -1], [], [stdout])
   AT_CHECK([cat stdout | cut -d" " -s -f1 > PCI_ADDR])
   AT_SKIP_IF([ ! test -s PCI_ADDR ])

])


# OVS_DPDK_START()
#
# Create an empty database and start ovsdb-server. Add special configuration
# dpdk-init to enable DPDK functionality. Start ovs-vswitchd connected to that
# database using system devices (no dummies).
#
m4_define([OVS_DPDK_START],
  [dnl Create database.
   AT_CHECK([touch .conf.db.~lock~])
   AT_CHECK([ovsdb-tool create conf.db $abs_top_srcdir/vswitchd/vswitch.ovsschema])

   dnl Start ovsdb-server.
   AT_CHECK([ovsdb-server --detach --no-chdir --pidfile --log-file --remote=punix:$OVS_RUNDIR/db.sock], [0], [stdout], [stderr])
   on_exit "kill `cat ovsdb-server.pid`"
   AT_CHECK([[sed < stderr '
/vlog|INFO|opened log file/d
/ovsdb_server|INFO|ovsdb-server (Open vSwitch)/d']])
   AT_CAPTURE_FILE([ovsdb-server.log])

   dnl Initialize database.
   AT_CHECK([ovs-vsctl --no-wait init])

   dnl Enable DPDK functionality
   AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-init=true])

   dnl Change DPDK drivers log levels so that tests only catch errors
   AT_CHECK([ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-extra=--log-level=pmd.*:error])

   dnl Start ovs-vswitchd.
   AT_CHECK([ovs-vswitchd --detach --no-chdir --pidfile --log-file -vvconn -vofproto_dpif -vunixctl], [0], [stdout], [stderr])
   AT_CAPTURE_FILE([ovs-vswitchd.log])
   on_exit "kill_ovs_vswitchd `cat ovs-vswitchd.pid`"
])
